diff options
Diffstat (limited to 'drivers/char')
67 files changed, 2854 insertions, 1998 deletions
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index 6bff9d87dc5..e991dc85f2f 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -762,7 +762,7 @@ static int cy_next_channel; /* next minor available */ /* * This is used to look up the divisor speeds and the timeouts * We're normally limited to 15 distinct baud rates. The extra - * are accessed via settings in info->flags. + * are accessed via settings in info->port.flags. * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, * 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, * HI VHI @@ -1003,7 +1003,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, cy_writeb(base_addr + (CyCAR << index), save_xir); /* if there is nowhere to put the data, discard it */ - if (info->tty == NULL) { + if (info->port.tty == NULL) { if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) == CyIVRRxEx) { /* exception */ data = readb(base_addr + (CyRDSR << index)); @@ -1015,7 +1015,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, goto end; } /* there is an open port for this data */ - tty = info->tty; + tty = info->port.tty; if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) == CyIVRRxEx) { /* exception */ data = readb(base_addr + (CyRDSR << index)); @@ -1041,7 +1041,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, readb(base_addr + (CyRDSR << index)), TTY_BREAK); info->icount.rx++; - if (info->flags & ASYNC_SAK) + if (info->port.flags & ASYNC_SAK) do_SAK(tty); } else if (data & CyFRAME) { tty_insert_flip_char(tty, @@ -1145,7 +1145,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip, goto end; } info = &cinfo->ports[channel + chip * 4]; - if (info->tty == NULL) { + if (info->port.tty == NULL) { cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) & ~CyTxRdy); goto end; @@ -1190,13 +1190,13 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip, } goto done; } - if (info->xmit_buf == NULL) { + if (info->port.xmit_buf == NULL) { cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) & ~CyTxRdy); goto done; } - if (info->tty->stopped || info->tty->hw_stopped) { + if (info->port.tty->stopped || info->port.tty->hw_stopped) { cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) & ~CyTxRdy); @@ -1211,7 +1211,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip, * character. This is necessary because there may not be room * for the two chars needed to send a NULL.) */ - outch = info->xmit_buf[info->xmit_tail]; + outch = info->port.xmit_buf[info->xmit_tail]; if (outch) { info->xmit_cnt--; info->xmit_tail = (info->xmit_tail + 1) & @@ -1232,7 +1232,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip, } done: - tty_wakeup(info->tty); + tty_wakeup(info->port.tty); end: /* end of service */ cy_writeb(base_addr + (CyTIR << index), save_xir & 0x3f); @@ -1256,7 +1256,7 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip, mdm_change = readb(base_addr + (CyMISR << index)); mdm_status = readb(base_addr + (CyMSVR1 << index)); - if (!info->tty) + if (!info->port.tty) goto end; if (mdm_change & CyANY_DELTA) { @@ -1273,29 +1273,29 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip, wake_up_interruptible(&info->delta_msr_wait); } - if ((mdm_change & CyDCD) && (info->flags & ASYNC_CHECK_CD)) { + if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) { if (!(mdm_status & CyDCD)) { - tty_hangup(info->tty); - info->flags &= ~ASYNC_NORMAL_ACTIVE; + tty_hangup(info->port.tty); + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; } - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } - if ((mdm_change & CyCTS) && (info->flags & ASYNC_CTS_FLOW)) { - if (info->tty->hw_stopped) { + if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) { + if (info->port.tty->hw_stopped) { if (mdm_status & CyCTS) { /* cy_start isn't used because... !!! */ - info->tty->hw_stopped = 0; + info->port.tty->hw_stopped = 0; cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) | CyTxRdy); - tty_wakeup(info->tty); + tty_wakeup(info->port.tty); } } else { if (!(mdm_status & CyCTS)) { /* cy_stop isn't used because ... !!! */ - info->tty->hw_stopped = 1; + info->port.tty->hw_stopped = 1; cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) & ~CyTxRdy); @@ -1449,7 +1449,7 @@ static void cyz_handle_rx(struct cyclades_port *info, struct BUF_CTRL __iomem *buf_ctrl) { struct cyclades_card *cinfo = info->card; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; unsigned int char_count; int len; #ifdef BLOCKMOVE @@ -1542,7 +1542,7 @@ static void cyz_handle_tx(struct cyclades_port *info, struct BUF_CTRL __iomem *buf_ctrl) { struct cyclades_card *cinfo = info->card; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; u8 data; unsigned int char_count; #ifdef BLOCKMOVE @@ -1585,7 +1585,7 @@ static void cyz_handle_tx(struct cyclades_port *info, memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr + tx_put), - &info->xmit_buf[info->xmit_tail], + &info->port.xmit_buf[info->xmit_tail], small_count); tx_put = (tx_put + small_count) & (tx_bufsize - 1); @@ -1597,7 +1597,7 @@ static void cyz_handle_tx(struct cyclades_port *info, } #else while (info->xmit_cnt && char_count) { - data = info->xmit_buf[info->xmit_tail]; + data = info->port.xmit_buf[info->xmit_tail]; info->xmit_cnt--; info->xmit_tail = (info->xmit_tail + 1) & (SERIAL_XMIT_SIZE - 1); @@ -1642,7 +1642,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) special_count = 0; delta_count = 0; info = &cinfo->ports[channel]; - tty = info->tty; + tty = info->port.tty; if (tty == NULL) continue; @@ -1668,15 +1668,15 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo) case C_CM_MDCD: info->icount.dcd++; delta_count++; - if (info->flags & ASYNC_CHECK_CD) { + if (info->port.flags & ASYNC_CHECK_CD) { if ((fw_ver > 241 ? ((u_long) param) : readl(&ch_ctrl->rs_status)) & C_RS_DCD) { - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } else { - tty_hangup(info->tty); - wake_up_interruptible(&info->open_wait); - info->flags &= ~ASYNC_NORMAL_ACTIVE; + tty_hangup(info->port.tty); + wake_up_interruptible(&info->port.open_wait); + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; } } break; @@ -1814,7 +1814,7 @@ static void cyz_poll(unsigned long arg) for (port = 0; port < cinfo->nports; port++) { info = &cinfo->ports[port]; - tty = info->tty; + tty = info->port.tty; buf_ctrl = &(zfw_ctrl->buf_ctrl[port]); if (!info->throttle) @@ -1853,22 +1853,22 @@ static int startup(struct cyclades_port *info) spin_lock_irqsave(&card->card_lock, flags); - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { free_page(page); goto errout; } if (!info->type) { - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); free_page(page); goto errout; } - if (info->xmit_buf) + if (info->port.xmit_buf) free_page(page); else - info->xmit_buf = (unsigned char *)page; + info->port.xmit_buf = (unsigned char *)page; spin_unlock_irqrestore(&card->card_lock, flags); @@ -1909,10 +1909,10 @@ static int startup(struct cyclades_port *info) cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) | CyRxData); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; info->breakon = info->breakoff = 0; memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats)); @@ -1994,9 +1994,9 @@ static int startup(struct cyclades_port *info) /* enable send, recv, modem !!! */ - info->flags |= ASYNC_INITIALIZED; - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + info->port.flags |= ASYNC_INITIALIZED; + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; info->breakon = info->breakoff = 0; memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats)); @@ -2065,7 +2065,7 @@ static void shutdown(struct cyclades_port *info) void __iomem *base_addr; int chip, channel, index; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; card = info->card; @@ -2087,14 +2087,14 @@ static void shutdown(struct cyclades_port *info) /* Clear delta_msr_wait queue to avoid mem leaks. */ wake_up_interruptible(&info->delta_msr_wait); - if (info->xmit_buf) { + if (info->port.xmit_buf) { unsigned char *temp; - temp = info->xmit_buf; - info->xmit_buf = NULL; + temp = info->port.xmit_buf; + info->port.xmit_buf = NULL; free_page((unsigned long)temp); } cy_writeb(base_addr + (CyCAR << index), (u_char) channel); - if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) { + if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) { cy_writeb(base_addr + (CyMSVR1 << index), ~CyRTS); cy_writeb(base_addr + (CyMSVR2 << index), ~CyDTR); #ifdef CY_DEBUG_DTR @@ -2108,9 +2108,9 @@ static void shutdown(struct cyclades_port *info) /* it may be appropriate to clear _XMIT at some later date (after testing)!!! */ - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); + info->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&card->card_lock, flags); } else { struct FIRM_ID __iomem *firm_id; @@ -2136,14 +2136,14 @@ static void shutdown(struct cyclades_port *info) spin_lock_irqsave(&card->card_lock, flags); - if (info->xmit_buf) { + if (info->port.xmit_buf) { unsigned char *temp; - temp = info->xmit_buf; - info->xmit_buf = NULL; + temp = info->port.xmit_buf; + info->port.xmit_buf = NULL; free_page((unsigned long)temp); } - if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) { + if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) { cy_writel(&ch_ctrl[channel].rs_control, (__u32)(readl(&ch_ctrl[channel].rs_control) & ~(C_RS_RTS | C_RS_DTR))); @@ -2158,9 +2158,9 @@ static void shutdown(struct cyclades_port *info) #endif } - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); + info->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&card->card_lock, flags); } @@ -2194,10 +2194,10 @@ block_til_ready(struct tty_struct *tty, struct file *filp, * If the device is in the middle of being closed, then block * until it's done, and then try again. */ - if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) { - wait_event_interruptible(info->close_wait, - !(info->flags & ASYNC_CLOSING)); - return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS; + if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) { + wait_event_interruptible(info->port.close_wait, + !(info->port.flags & ASYNC_CLOSING)); + return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS; } /* @@ -2206,32 +2206,32 @@ block_til_ready(struct tty_struct *tty, struct file *filp, */ if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) { - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } /* * Block waiting for the carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that + * this loop, info->port.count is dropped by one, so that * cy_close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&info->open_wait, &wait); + add_wait_queue(&info->port.open_wait, &wait); #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc block_til_ready before block: ttyC%d, " - "count = %d\n", info->line, info->count); + "count = %d\n", info->line, info->port.count); #endif spin_lock_irqsave(&cinfo->card_lock, flags); if (!tty_hung_up_p(filp)) - info->count--; + info->port.count--; spin_unlock_irqrestore(&cinfo->card_lock, flags); #ifdef CY_DEBUG_COUNT printk(KERN_DEBUG "cyc block_til_ready: (%d): decrementing count to " - "%d\n", current->pid, info->count); + "%d\n", current->pid, info->port.count); #endif - info->blocked_open++; + info->port.blocked_open++; if (!IS_CYC_Z(*cinfo)) { chip = channel >> 2; @@ -2260,8 +2260,8 @@ block_til_ready(struct tty_struct *tty, struct file *filp, set_current_state(TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || - !(info->flags & ASYNC_INITIALIZED)) { - retval = ((info->flags & ASYNC_HUP_NOTIFY) ? + !(info->port.flags & ASYNC_INITIALIZED)) { + retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); break; } @@ -2269,7 +2269,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp, spin_lock_irqsave(&cinfo->card_lock, flags); cy_writeb(base_addr + (CyCAR << index), (u_char) channel); - if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) || + if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) || (readb(base_addr + (CyMSVR1 << index)) & CyDCD))) { spin_unlock_irqrestore(&cinfo->card_lock, flags); @@ -2284,7 +2284,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp, #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc block_til_ready blocking: " "ttyC%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif schedule(); } @@ -2298,7 +2298,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp, firm_id = base_addr + ID_ADDRESS; if (!ISZLOADED(*cinfo)) { __set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); + remove_wait_queue(&info->port.open_wait, &wait); return -EINVAL; } @@ -2327,12 +2327,12 @@ block_til_ready(struct tty_struct *tty, struct file *filp, set_current_state(TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || - !(info->flags & ASYNC_INITIALIZED)) { - retval = ((info->flags & ASYNC_HUP_NOTIFY) ? + !(info->port.flags & ASYNC_INITIALIZED)) { + retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); break; } - if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) || + if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) || (readl(&ch_ctrl[channel].rs_status) & C_RS_DCD))) { break; @@ -2344,28 +2344,28 @@ block_til_ready(struct tty_struct *tty, struct file *filp, #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc block_til_ready blocking: " "ttyC%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif schedule(); } } __set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); + remove_wait_queue(&info->port.open_wait, &wait); if (!tty_hung_up_p(filp)) { - info->count++; + info->port.count++; #ifdef CY_DEBUG_COUNT printk(KERN_DEBUG "cyc:block_til_ready (%d): incrementing " - "count to %d\n", current->pid, info->count); + "count to %d\n", current->pid, info->port.count); #endif } - info->blocked_open--; + info->port.blocked_open--; #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc:block_til_ready after blocking: ttyC%d, " - "count = %d\n", info->line, info->count); + "count = %d\n", info->line, info->port.count); #endif if (retval) return retval; - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } /* block_til_ready */ @@ -2456,27 +2456,27 @@ static int cy_open(struct tty_struct *tty, struct file *filp) printk(KERN_DEBUG "cyc:cy_open ttyC%d\n", info->line); #endif tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; if (serial_paranoia_check(info, tty->name, "cy_open")) return -ENODEV; #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line, - info->count); + info->port.count); #endif - info->count++; + info->port.count++; #ifdef CY_DEBUG_COUNT printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n", - current->pid, info->count); + current->pid, info->port.count); #endif /* * If the port is the middle of closing, bail out now */ - if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) { - wait_event_interruptible(info->close_wait, - !(info->flags & ASYNC_CLOSING)); - return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS; + if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) { + wait_event_interruptible(info->port.close_wait, + !(info->port.flags & ASYNC_CLOSING)); + return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS; } /* @@ -2641,9 +2641,9 @@ static void cy_close(struct tty_struct *tty, struct file *filp) } #ifdef CY_DEBUG_OPEN printk(KERN_DEBUG "cyc:cy_close ttyC%d, count = %d\n", info->line, - info->count); + info->port.count); #endif - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->port.count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty * structure will be freed. Info->count should always @@ -2652,24 +2652,24 @@ static void cy_close(struct tty_struct *tty, struct file *filp) * serial port won't be shutdown. */ printk(KERN_ERR "cyc:cy_close: bad serial port count; " - "tty->count is 1, info->count is %d\n", info->count); - info->count = 1; + "tty->count is 1, info->port.count is %d\n", info->port.count); + info->port.count = 1; } #ifdef CY_DEBUG_COUNT printk(KERN_DEBUG "cyc:cy_close at (%d): decrementing count to %d\n", - current->pid, info->count - 1); + current->pid, info->port.count - 1); #endif - if (--info->count < 0) { + if (--info->port.count < 0) { #ifdef CY_DEBUG_COUNT printk(KERN_DEBUG "cyc:cyc_close setting count to 0\n"); #endif - info->count = 0; + info->port.count = 0; } - if (info->count) { + if (info->port.count) { spin_unlock_irqrestore(&card->card_lock, flags); return; } - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; /* * Now we wait for the transmit buffer to clear; and we notify @@ -2677,8 +2677,8 @@ static void cy_close(struct tty_struct *tty, struct file *filp) */ tty->closing = 1; spin_unlock_irqrestore(&card->card_lock, flags); - if (info->closing_wait != CY_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, info->closing_wait); + if (info->port.closing_wait != CY_CLOSING_WAIT_NONE) + tty_wait_until_sent(tty, info->port.closing_wait); spin_lock_irqsave(&card->card_lock, flags); @@ -2692,7 +2692,7 @@ static void cy_close(struct tty_struct *tty, struct file *filp) cy_writeb(base_addr + (CyCAR << index), (u_char) channel); cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) & ~CyRxData); - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { /* Waiting for on-board buffers to be empty before closing the port */ spin_unlock_irqrestore(&card->card_lock, flags); @@ -2731,18 +2731,18 @@ static void cy_close(struct tty_struct *tty, struct file *filp) spin_lock_irqsave(&card->card_lock, flags); tty->closing = 0; - info->tty = NULL; - if (info->blocked_open) { + info->port.tty = NULL; + if (info->port.blocked_open) { spin_unlock_irqrestore(&card->card_lock, flags); - if (info->close_delay) { + if (info->port.close_delay) { msleep_interruptible(jiffies_to_msecs - (info->close_delay)); + (info->port.close_delay)); } - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); spin_lock_irqsave(&card->card_lock, flags); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); - wake_up_interruptible(&info->close_wait); + info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); + wake_up_interruptible(&info->port.close_wait); #ifdef CY_DEBUG_OTHER printk(KERN_DEBUG "cyc:cy_close done\n"); @@ -2777,7 +2777,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count) if (serial_paranoia_check(info, tty->name, "cy_write")) return 0; - if (!info->xmit_buf) + if (!info->port.xmit_buf) return 0; spin_lock_irqsave(&info->card->card_lock, flags); @@ -2788,7 +2788,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count) if (c <= 0) break; - memcpy(info->xmit_buf + info->xmit_head, buf, c); + memcpy(info->port.xmit_buf + info->xmit_head, buf, c); info->xmit_head = (info->xmit_head + c) & (SERIAL_XMIT_SIZE - 1); info->xmit_cnt += c; @@ -2826,7 +2826,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch) if (serial_paranoia_check(info, tty->name, "cy_put_char")) return 0; - if (!info->xmit_buf) + if (!info->port.xmit_buf) return 0; spin_lock_irqsave(&info->card->card_lock, flags); @@ -2835,7 +2835,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch) return 0; } - info->xmit_buf[info->xmit_head++] = ch; + info->port.xmit_buf[info->xmit_head++] = ch; info->xmit_head &= SERIAL_XMIT_SIZE - 1; info->xmit_cnt++; info->idle_stats.xmit_bytes++; @@ -2860,7 +2860,7 @@ static void cy_flush_chars(struct tty_struct *tty) return; if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || - !info->xmit_buf) + !info->port.xmit_buf) return; start_xmit(info); @@ -2988,27 +2988,27 @@ static void set_line_char(struct cyclades_port *info) int baud, baud_rate = 0; int i; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return; if (info->line == -1) return; - cflag = info->tty->termios->c_cflag; - iflag = info->tty->termios->c_iflag; + cflag = info->port.tty->termios->c_cflag; + iflag = info->port.tty->termios->c_iflag; /* * Set up the tty->alt_speed kludge */ - if (info->tty) { - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - info->tty->alt_speed = 57600; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - info->tty->alt_speed = 115200; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) - info->tty->alt_speed = 230400; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) - info->tty->alt_speed = 460800; + if (info->port.tty) { + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + info->port.tty->alt_speed = 57600; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + info->port.tty->alt_speed = 115200; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + info->port.tty->alt_speed = 230400; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + info->port.tty->alt_speed = 460800; } card = info->card; @@ -3020,8 +3020,8 @@ static void set_line_char(struct cyclades_port *info) index = card->bus_index; /* baud rate */ - baud = tty_get_baud_rate(info->tty); - if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + baud = tty_get_baud_rate(info->port.tty); + if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { if (info->custom_divisor) baud_rate = info->baud / info->custom_divisor; @@ -3038,7 +3038,7 @@ static void set_line_char(struct cyclades_port *info) if (i == 20) i = 19; /* CD1400_MAX_SPEED */ - if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { cyy_baud_calc(info, baud_rate); } else { @@ -3059,7 +3059,7 @@ static void set_line_char(struct cyclades_port *info) /* get it right for 134.5 baud */ info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) + 2; - } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { info->timeout = (info->xmit_fifo_size * HZ * 15 / baud_rate) + 2; @@ -3108,16 +3108,16 @@ static void set_line_char(struct cyclades_port *info) /* CTS flow control flag */ if (cflag & CRTSCTS) { - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; info->cor2 |= CyCtsAE; } else { - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; info->cor2 &= ~CyCtsAE; } if (cflag & CLOCAL) - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; else - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; /*********************************************** The hardware option, CyRtsAO, presents RTS when @@ -3146,8 +3146,8 @@ static void set_line_char(struct cyclades_port *info) /* set line characteristics according configuration */ cy_writeb(base_addr + (CySCHR1 << index), - START_CHAR(info->tty)); - cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->tty)); + START_CHAR(info->port.tty)); + cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->port.tty)); cy_writeb(base_addr + (CyCOR1 << index), info->cor1); cy_writeb(base_addr + (CyCOR2 << index), info->cor2); cy_writeb(base_addr + (CyCOR3 << index), info->cor3); @@ -3163,7 +3163,7 @@ static void set_line_char(struct cyclades_port *info) (info->default_timeout ? info->default_timeout : 0x02)); /* 10ms rx timeout */ - if (C_CLOCAL(info->tty)) { + if (C_CLOCAL(info->port.tty)) { /* without modem intr */ cy_writeb(base_addr + (CySRER << index), readb(base_addr + (CySRER << index)) | CyMdmCh); @@ -3226,8 +3226,8 @@ static void set_line_char(struct cyclades_port *info) #endif } - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); spin_unlock_irqrestore(&card->card_lock, flags); } else { @@ -3250,8 +3250,8 @@ static void set_line_char(struct cyclades_port *info) buf_ctrl = &zfw_ctrl->buf_ctrl[channel]; /* baud rate */ - baud = tty_get_baud_rate(info->tty); - if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + baud = tty_get_baud_rate(info->port.tty); + if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { if (info->custom_divisor) baud_rate = info->baud / info->custom_divisor; @@ -3266,7 +3266,7 @@ static void set_line_char(struct cyclades_port *info) /* get it right for 134.5 baud */ info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) + 2; - } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) == + } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) { info->timeout = (info->xmit_fifo_size * HZ * 15 / baud_rate) + 2; @@ -3318,7 +3318,7 @@ static void set_line_char(struct cyclades_port *info) } /* As the HW flow control is done in firmware, the driver doesn't need to care about it */ - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; /* XON/XOFF/XANY flow control flags */ sw_flow = 0; @@ -3337,9 +3337,9 @@ static void set_line_char(struct cyclades_port *info) /* CD sensitivity */ if (cflag & CLOCAL) - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; else - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; if (baud == 0) { /* baud rate is zero, turn off line */ cy_writel(&ch_ctrl->rs_control, @@ -3361,8 +3361,8 @@ static void set_line_char(struct cyclades_port *info) "was %x\n", info->line, retval); } - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); } } /* set_line_char */ @@ -3381,9 +3381,9 @@ get_serial_info(struct cyclades_port *info, tmp.port = (info->card - cy_card) * 0x100 + info->line - cinfo->first_line; tmp.irq = cinfo->irq; - tmp.flags = info->flags; - tmp.close_delay = info->close_delay; - tmp.closing_wait = info->closing_wait; + tmp.flags = info->port.flags; + tmp.close_delay = info->port.close_delay; + tmp.closing_wait = info->port.closing_wait; tmp.baud_base = info->baud; tmp.custom_divisor = info->custom_divisor; tmp.hub6 = 0; /*!!! */ @@ -3402,13 +3402,13 @@ set_serial_info(struct cyclades_port *info, old_info = *info; if (!capable(CAP_SYS_ADMIN)) { - if (new_serial.close_delay != info->close_delay || + if (new_serial.close_delay != info->port.close_delay || new_serial.baud_base != info->baud || (new_serial.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK) != - (info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK)) + (info->port.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK)) return -EPERM; - info->flags = (info->flags & ~ASYNC_USR_MASK) | + info->port.flags = (info->port.flags & ~ASYNC_USR_MASK) | (new_serial.flags & ASYNC_USR_MASK); info->baud = new_serial.baud_base; info->custom_divisor = new_serial.custom_divisor; @@ -3422,13 +3422,13 @@ set_serial_info(struct cyclades_port *info, info->baud = new_serial.baud_base; info->custom_divisor = new_serial.custom_divisor; - info->flags = (info->flags & ~ASYNC_FLAGS) | + info->port.flags = (info->port.flags & ~ASYNC_FLAGS) | (new_serial.flags & ASYNC_FLAGS); - info->close_delay = new_serial.close_delay * HZ / 100; - info->closing_wait = new_serial.closing_wait * HZ / 100; + info->port.close_delay = new_serial.close_delay * HZ / 100; + info->port.closing_wait = new_serial.closing_wait * HZ / 100; check_and_exit: - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { set_line_char(info); return 0; } else { @@ -3971,11 +3971,11 @@ cy_ioctl(struct tty_struct *tty, struct file *file, break; #endif /* CONFIG_CYZ_INTR */ case CYSETWAIT: - info->closing_wait = (unsigned short)arg * HZ / 100; + info->port.closing_wait = (unsigned short)arg * HZ / 100; ret_val = 0; break; case CYGETWAIT: - ret_val = info->closing_wait / (HZ / 100); + ret_val = info->port.closing_wait / (HZ / 100); break; case TIOCGSERIAL: ret_val = get_serial_info(info, argp); @@ -4097,7 +4097,7 @@ static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios) */ if (!(old_termios->c_cflag & CLOCAL) && (tty->termios->c_cflag & CLOCAL)) - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); #endif } /* cy_set_termios */ @@ -4326,14 +4326,14 @@ static void cy_hangup(struct tty_struct *tty) cy_flush_buffer(tty); shutdown(info); - info->count = 0; + info->port.count = 0; #ifdef CY_DEBUG_COUNT printk(KERN_DEBUG "cyc:cy_hangup (%d): setting count to 0\n", current->pid); #endif - info->tty = NULL; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - wake_up_interruptible(&info->open_wait); + info->port.tty = NULL; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + wake_up_interruptible(&info->port.open_wait); } /* cy_hangup */ /* @@ -4376,15 +4376,14 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo) for (port = cinfo->first_line; port < cinfo->first_line + nports; port++) { info = &cinfo->ports[port - cinfo->first_line]; + tty_port_init(&info->port); info->magic = CYCLADES_MAGIC; info->card = cinfo; info->line = port; - info->flags = STD_COM_FLAGS; - info->closing_wait = CLOSING_WAIT_DELAY; - info->close_delay = 5 * HZ / 10; - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + info->port.closing_wait = CLOSING_WAIT_DELAY; + info->port.close_delay = 5 * HZ / 10; + info->port.flags = STD_COM_FLAGS; init_completion(&info->shutdown_wait); init_waitqueue_head(&info->delta_msr_wait); @@ -5237,7 +5236,7 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length, for (j = 0; j < cy_card[i].nports; j++) { info = &cy_card[i].ports[j]; - if (info->count) + if (info->port.count) size = sprintf(buf + len, "%3d %8lu %10lu %8lu " "%10lu %8lu %9lu %6ld\n", info->line, (cur_jifs - info->idle_stats.in_use) / @@ -5246,7 +5245,8 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length, HZ, info->idle_stats.recv_bytes, (cur_jifs - info->idle_stats.recv_idle)/ HZ, info->idle_stats.overruns, - (long)info->tty->ldisc.num); + /* FIXME: double check locking */ + (long)info->port.tty->ldisc.ops->num); else size = sprintf(buf + len, "%3d %8lu %10lu %8lu " "%10lu %8lu %9lu %6ld\n", diff --git a/drivers/char/epca.c b/drivers/char/epca.c index 60a4df7dac1..ac9995f6578 100644 --- a/drivers/char/epca.c +++ b/drivers/char/epca.c @@ -432,7 +432,7 @@ static void pc_close(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&epca_lock, flags); return; } - if (ch->count-- > 1) { + if (ch->port.count-- > 1) { /* Begin channel is open more than once */ /* * Return without doing anything. Someone might still @@ -442,19 +442,19 @@ static void pc_close(struct tty_struct *tty, struct file *filp) return; } /* Port open only once go ahead with shutdown & reset */ - BUG_ON(ch->count < 0); + BUG_ON(ch->port.count < 0); /* * Let the rest of the driver know the channel is being closed. * This becomes important if an open is attempted before close * is finished. */ - ch->asyncflags |= ASYNC_CLOSING; + ch->port.flags |= ASYNC_CLOSING; tty->closing = 1; spin_unlock_irqrestore(&epca_lock, flags); - if (ch->asyncflags & ASYNC_INITIALIZED) { + if (ch->port.flags & ASYNC_INITIALIZED) { /* Setup an event to indicate when the transmit buffer empties */ setup_empty_event(tty, ch); @@ -469,17 +469,17 @@ static void pc_close(struct tty_struct *tty, struct file *filp) spin_lock_irqsave(&epca_lock, flags); tty->closing = 0; ch->event = 0; - ch->tty = NULL; + ch->port.tty = NULL; spin_unlock_irqrestore(&epca_lock, flags); - if (ch->blocked_open) { + if (ch->port.blocked_open) { if (ch->close_delay) msleep_interruptible(jiffies_to_msecs(ch->close_delay)); - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); } - ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED | + ch->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED | ASYNC_CLOSING); - wake_up_interruptible(&ch->close_wait); + wake_up_interruptible(&ch->port.close_wait); } } @@ -489,7 +489,7 @@ static void shutdown(struct channel *ch) struct tty_struct *tty; struct board_chan __iomem *bc; - if (!(ch->asyncflags & ASYNC_INITIALIZED)) + if (!(ch->port.flags & ASYNC_INITIALIZED)) return; spin_lock_irqsave(&epca_lock, flags); @@ -504,7 +504,7 @@ static void shutdown(struct channel *ch) */ if (bc) writeb(0, &bc->idata); - tty = ch->tty; + tty = ch->port.tty; /* If we're a modem control device and HUPCL is on, drop RTS & DTR. */ if (tty->termios->c_cflag & HUPCL) { @@ -518,7 +518,7 @@ static void shutdown(struct channel *ch) * will have to reinitialized. Set a flag to indicate this. */ /* Prevent future Digi programmed interrupts from coming active */ - ch->asyncflags &= ~ASYNC_INITIALIZED; + ch->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&epca_lock, flags); } @@ -538,12 +538,12 @@ static void pc_hangup(struct tty_struct *tty) shutdown(ch); spin_lock_irqsave(&epca_lock, flags); - ch->tty = NULL; + ch->port.tty = NULL; ch->event = 0; - ch->count = 0; - ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED); + ch->port.count = 0; + ch->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED); spin_unlock_irqrestore(&epca_lock, flags); - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); } } @@ -795,7 +795,7 @@ static int block_til_ready(struct tty_struct *tty, unsigned long flags; if (tty_hung_up_p(filp)) { - if (ch->asyncflags & ASYNC_HUP_NOTIFY) + if (ch->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; @@ -806,10 +806,10 @@ static int block_til_ready(struct tty_struct *tty, * If the device is in the middle of being closed, then block until * it's done, and then try again. */ - if (ch->asyncflags & ASYNC_CLOSING) { - interruptible_sleep_on(&ch->close_wait); + if (ch->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&ch->port.close_wait); - if (ch->asyncflags & ASYNC_HUP_NOTIFY) + if (ch->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; else return -ERESTARTSYS; @@ -820,7 +820,7 @@ static int block_til_ready(struct tty_struct *tty, * If non-blocking mode is set, then make the check up front * and then exit. */ - ch->asyncflags |= ASYNC_NORMAL_ACTIVE; + ch->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } if (tty->termios->c_cflag & CLOCAL) @@ -828,24 +828,24 @@ static int block_til_ready(struct tty_struct *tty, /* Block waiting for the carrier detect and the line to become free */ retval = 0; - add_wait_queue(&ch->open_wait, &wait); + add_wait_queue(&ch->port.open_wait, &wait); spin_lock_irqsave(&epca_lock, flags); /* We dec count so that pc_close will know when to free things */ if (!tty_hung_up_p(filp)) - ch->count--; - ch->blocked_open++; + ch->port.count--; + ch->port.blocked_open++; while (1) { set_current_state(TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || - !(ch->asyncflags & ASYNC_INITIALIZED)) { - if (ch->asyncflags & ASYNC_HUP_NOTIFY) + !(ch->port.flags & ASYNC_INITIALIZED)) { + if (ch->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; break; } - if (!(ch->asyncflags & ASYNC_CLOSING) && + if (!(ch->port.flags & ASYNC_CLOSING) && (do_clocal || (ch->imodem & ch->dcd))) break; if (signal_pending(current)) { @@ -864,17 +864,17 @@ static int block_til_ready(struct tty_struct *tty, } __set_current_state(TASK_RUNNING); - remove_wait_queue(&ch->open_wait, &wait); + remove_wait_queue(&ch->port.open_wait, &wait); if (!tty_hung_up_p(filp)) - ch->count++; - ch->blocked_open--; + ch->port.count++; + ch->port.blocked_open--; spin_unlock_irqrestore(&epca_lock, flags); if (retval) return retval; - ch->asyncflags |= ASYNC_NORMAL_ACTIVE; + ch->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -933,7 +933,7 @@ static int pc_open(struct tty_struct *tty, struct file *filp) * necessary because we do not wish to flush and shutdown the channel * until the last app holding the channel open, closes it. */ - ch->count++; + ch->port.count++; /* * Set a kernel structures pointer to our local channel structure. This * way we can get to it when passed only a tty struct. @@ -957,14 +957,14 @@ static int pc_open(struct tty_struct *tty, struct file *filp) writew(head, &bc->rout); /* Set the channels associated tty structure */ - ch->tty = tty; + ch->port.tty = tty; /* * The below routine generally sets up parity, baud, flow control * issues, etc.... It effect both control flags and input flags. */ epcaparam(tty, ch); - ch->asyncflags |= ASYNC_INITIALIZED; + ch->port.flags |= ASYNC_INITIALIZED; memoff(ch); spin_unlock_irqrestore(&epca_lock, flags); @@ -976,7 +976,7 @@ static int pc_open(struct tty_struct *tty, struct file *filp) * waiting for the line... */ spin_lock_irqsave(&epca_lock, flags); - ch->tty = tty; + ch->port.tty = tty; globalwinon(ch); /* Enable Digi Data events */ writeb(1, &bc->idata); @@ -1017,8 +1017,8 @@ static void __exit epca_module_exit(void) } ch = card_ptr[crd]; for (count = 0; count < bd->numports; count++, ch++) { - if (ch && ch->tty) - tty_hangup(ch->tty); + if (ch && ch->port.tty) + tty_hangup(ch->port.tty); } } pci_unregister_driver(&epca_driver); @@ -1427,7 +1427,7 @@ static void post_fep_init(unsigned int crd) ch->boardnum = crd; ch->channelnum = i; ch->magic = EPCA_MAGIC; - ch->tty = NULL; + ch->port.tty = NULL; if (shrinkmem) { fepcmd(ch, SETBUFFER, 32, 0, 0, 0); @@ -1510,10 +1510,10 @@ static void post_fep_init(unsigned int crd) ch->fepstopca = 0; ch->close_delay = 50; - ch->count = 0; - ch->blocked_open = 0; - init_waitqueue_head(&ch->open_wait); - init_waitqueue_head(&ch->close_wait); + ch->port.count = 0; + ch->port.blocked_open = 0; + init_waitqueue_head(&ch->port.open_wait); + init_waitqueue_head(&ch->port.close_wait); spin_unlock_irqrestore(&epca_lock, flags); } @@ -1633,15 +1633,15 @@ static void doevent(int crd) if (event & MODEMCHG_IND) { /* A modem signal change has been indicated */ ch->imodem = mstat; - if (ch->asyncflags & ASYNC_CHECK_CD) { + if (ch->port.flags & ASYNC_CHECK_CD) { /* We are now receiving dcd */ if (mstat & ch->dcd) - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); else /* No dcd; hangup */ pc_sched_event(ch, EPCA_EVENT_HANGUP); } } - tty = ch->tty; + tty = ch->port.tty; if (tty) { if (event & BREAK_IND) { /* A break has been indicated */ @@ -1880,9 +1880,9 @@ static void epcaparam(struct tty_struct *tty, struct channel *ch) * that the driver will wait on carrier detect. */ if (ts->c_cflag & CLOCAL) - ch->asyncflags &= ~ASYNC_CHECK_CD; + ch->port.flags &= ~ASYNC_CHECK_CD; else - ch->asyncflags |= ASYNC_CHECK_CD; + ch->port.flags |= ASYNC_CHECK_CD; mval = ch->m_dtr | ch->m_rts; } /* End CBAUD not detected */ iflag = termios2digi_i(ch, ts->c_iflag); @@ -1972,7 +1972,7 @@ static void receive_data(struct channel *ch) globalwinon(ch); if (ch->statusflags & RXSTOPPED) return; - tty = ch->tty; + tty = ch->port.tty; if (tty) ts = tty->termios; bc = ch->brdchan; @@ -2032,7 +2032,7 @@ static void receive_data(struct channel *ch) globalwinon(ch); writew(tail, &bc->rout); /* Must be called with global data */ - tty_schedule_flip(ch->tty); + tty_schedule_flip(ch->port.tty); } static int info_ioctl(struct tty_struct *tty, struct file *file, @@ -2262,8 +2262,8 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file, tty_wait_until_sent(tty, 0); } else { /* ldisc lock already held in ioctl */ - if (tty->ldisc.flush_buffer) - tty->ldisc.flush_buffer(tty); + if (tty->ldisc.ops->flush_buffer) + tty->ldisc.ops->flush_buffer(tty); } unlock_kernel(); /* Fall Thru */ @@ -2376,7 +2376,7 @@ static void pc_set_termios(struct tty_struct *tty, struct ktermios *old_termios) if (!(old_termios->c_cflag & CLOCAL) && (tty->termios->c_cflag & CLOCAL)) - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); } /* End if channel valid */ } @@ -2386,13 +2386,13 @@ static void do_softint(struct work_struct *work) struct channel *ch = container_of(work, struct channel, tqueue); /* Called in response to a modem change event */ if (ch && ch->magic == EPCA_MAGIC) { - struct tty_struct *tty = ch->tty; + struct tty_struct *tty = ch->port.tty; if (tty && tty->driver_data) { if (test_and_clear_bit(EPCA_EVENT_HANGUP, &ch->event)) { tty_hangup(tty); - wake_up_interruptible(&ch->open_wait); - ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; + wake_up_interruptible(&ch->port.open_wait); + ch->port.flags &= ~ASYNC_NORMAL_ACTIVE; } } } diff --git a/drivers/char/epca.h b/drivers/char/epca.h index 3c77c02b5d6..d414bf2dbf7 100644 --- a/drivers/char/epca.h +++ b/drivers/char/epca.h @@ -84,6 +84,7 @@ static char *board_desc[] = struct channel { long magic; + struct tty_port port; unsigned char boardnum; unsigned char channelnum; unsigned char omodem; /* FEP output modem status */ @@ -117,10 +118,7 @@ struct channel unsigned short rxbufhead; unsigned short rxbufsize; int close_delay; - int count; - int blocked_open; unsigned long event; - int asyncflags; uint dev; unsigned long statusflags; unsigned long c_iflag; @@ -132,9 +130,6 @@ struct channel struct board_info *board; struct board_chan __iomem *brdchan; struct digi_struct digiext; - struct tty_struct *tty; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; struct work_struct tqueue; struct global_data __iomem *mailbox; }; diff --git a/drivers/char/esp.c b/drivers/char/esp.c index 84840ba13ff..2eaf09f93e3 100644 --- a/drivers/char/esp.c +++ b/drivers/char/esp.c @@ -128,9 +128,9 @@ static struct tty_driver *esp_driver; #if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT) #define DBG_CNT(s) printk(KERN_DEBUG "(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \ - tty->name, info->flags, \ + tty->name, info->port.flags, \ serial_driver.refcount, \ - info->count, tty->count, s) + info->port.count, tty->count, s) #else #define DBG_CNT(s) #endif @@ -172,13 +172,13 @@ static inline int serial_paranoia_check(struct esp_struct *info, static inline unsigned int serial_in(struct esp_struct *info, int offset) { - return inb(info->port + offset); + return inb(info->io_port + offset); } static inline void serial_out(struct esp_struct *info, int offset, unsigned char value) { - outb(value, info->port+offset); + outb(value, info->io_port+offset); } /* @@ -273,7 +273,7 @@ static inline void release_pio_buffer(struct esp_pio_buffer *buf) static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; int i; struct esp_pio_buffer *pio_buf; struct esp_pio_buffer *err_buf; @@ -295,7 +295,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) for (i = 0; i < num_bytes - 1; i += 2) { *((unsigned short *)(pio_buf->data + i)) = - inw(info->port + UART_ESI_RX); + inw(info->io_port + UART_ESI_RX); err_buf->data[i] = serial_in(info, UART_ESI_RWS); err_buf->data[i + 1] = (err_buf->data[i] >> 3) & status_mask; err_buf->data[i] &= status_mask; @@ -308,7 +308,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) } /* make sure everything is still ok since interrupts were enabled */ - tty = info->tty; + tty = info->port.tty; if (!tty) { release_pio_buffer(pio_buf); @@ -325,7 +325,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) if (err_buf->data[i] & 0x04) { flag = TTY_BREAK; - if (info->flags & ASYNC_SAK) + if (info->port.flags & ASYNC_SAK) do_SAK(tty); } else if (err_buf->data[i] & 0x02) flag = TTY_FRAME; @@ -370,7 +370,7 @@ static void receive_chars_dma(struct esp_struct *info, int num_bytes) static inline void receive_chars_dma_done(struct esp_struct *info, int status) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; int num_bytes; unsigned long flags; @@ -396,7 +396,7 @@ static inline void receive_chars_dma_done(struct esp_struct *info, if (status & 0x10) { statflag = TTY_BREAK; (info->icount.brk)++; - if (info->flags & ASYNC_SAK) + if (info->port.flags & ASYNC_SAK) do_SAK(tty); } else if (status & 0x08) { statflag = TTY_FRAME; @@ -451,7 +451,7 @@ static inline void transmit_chars_pio(struct esp_struct *info, for (i = 0; i < space_avail - 1; i += 2) { outw(*((unsigned short *)(pio_buf->data + i)), - info->port + UART_ESI_TX); + info->io_port + UART_ESI_TX); } if (space_avail & 0x0001) @@ -470,8 +470,8 @@ static inline void transmit_chars_pio(struct esp_struct *info, } if (info->xmit_cnt < WAKEUP_CHARS) { - if (info->tty) - tty_wakeup(info->tty); + if (info->port.tty) + tty_wakeup(info->port.tty); #ifdef SERIAL_DEBUG_INTR printk("THRE..."); @@ -507,8 +507,8 @@ static inline void transmit_chars_dma(struct esp_struct *info, int num_bytes) info->xmit_tail = (info->xmit_tail + dma_bytes) & (ESP_XMIT_SIZE - 1); if (info->xmit_cnt < WAKEUP_CHARS) { - if (info->tty) - tty_wakeup(info->tty); + if (info->port.tty) + tty_wakeup(info->port.tty); #ifdef SERIAL_DEBUG_INTR printk("THRE..."); @@ -575,18 +575,18 @@ static void check_modem_status(struct esp_struct *info) wake_up_interruptible(&info->delta_msr_wait); } - if ((info->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { + if ((info->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { #if (defined(SERIAL_DEBUG_OPEN) || defined(SERIAL_DEBUG_INTR)) printk("ttys%d CD now %s...", info->line, (status & UART_MSR_DCD) ? "on" : "off"); #endif if (status & UART_MSR_DCD) - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); else { #ifdef SERIAL_DEBUG_OPEN printk("scheduling hangup..."); #endif - tty_hangup(info->tty); + tty_hangup(info->port.tty); } } } @@ -609,7 +609,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id) spin_lock(&info->lock); - if (!info->tty) { + if (!info->port.tty) { spin_unlock(&info->lock); return IRQ_NONE; } @@ -647,7 +647,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id) num_bytes = serial_in(info, UART_ESI_STAT1) << 8; num_bytes |= serial_in(info, UART_ESI_STAT2); - num_bytes = tty_buffer_request_room(info->tty, num_bytes); + num_bytes = tty_buffer_request_room(info->port.tty, num_bytes); if (num_bytes) { if (dma_bytes || @@ -661,7 +661,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id) if (!(info->stat_flags & (ESP_STAT_DMA_RX | ESP_STAT_DMA_TX)) && (scratch & 0x02) && (info->IER & UART_IER_THRI)) { - if ((info->xmit_cnt <= 0) || info->tty->stopped) { + if ((info->xmit_cnt <= 0) || info->port.tty->stopped) { info->IER &= ~UART_IER_THRI; serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK); serial_out(info, UART_ESI_CMD2, info->IER); @@ -782,7 +782,7 @@ static int startup(struct esp_struct *info) spin_lock_irqsave(&info->lock, flags); - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) goto out; if (!info->xmit_buf) { @@ -806,7 +806,7 @@ static int startup(struct esp_struct *info) num_chars |= serial_in(info, UART_ESI_STAT2); while (num_chars > 1) { - inw(info->port + UART_ESI_RX); + inw(info->io_port + UART_ESI_RX); num_chars -= 2; } @@ -834,9 +834,9 @@ static int startup(struct esp_struct *info) if (retval) { if (capable(CAP_SYS_ADMIN)) { - if (info->tty) + if (info->port.tty) set_bit(TTY_IO_ERROR, - &info->tty->flags); + &info->port.tty->flags); retval = 0; } goto out_unlocked; @@ -874,30 +874,30 @@ static int startup(struct esp_struct *info) serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK); serial_out(info, UART_ESI_CMD2, info->IER); - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; spin_unlock_irqrestore(&info->lock, flags); /* * Set up the tty->alt_speed kludge */ - if (info->tty) { - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - info->tty->alt_speed = 57600; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - info->tty->alt_speed = 115200; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) - info->tty->alt_speed = 230400; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) - info->tty->alt_speed = 460800; + if (info->port.tty) { + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + info->port.tty->alt_speed = 57600; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + info->port.tty->alt_speed = 115200; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + info->port.tty->alt_speed = 230400; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + info->port.tty->alt_speed = 460800; } /* * set the speed of the serial port */ change_speed(info); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; return 0; out: @@ -914,7 +914,7 @@ static void shutdown(struct esp_struct *info) { unsigned long flags, f; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; #ifdef SERIAL_DEBUG_OPEN @@ -951,7 +951,7 @@ static void shutdown(struct esp_struct *info) while (current_port) { if ((current_port != info) && - (current_port->flags & ASYNC_INITIALIZED)) + (current_port->port.flags & ASYNC_INITIALIZED)) break; current_port = current_port->next_port; @@ -974,7 +974,7 @@ static void shutdown(struct esp_struct *info) serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK); serial_out(info, UART_ESI_CMD2, 0x00); - if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) + if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) info->MCR &= ~(UART_MCR_DTR|UART_MCR_RTS); info->MCR &= ~UART_MCR_OUT2; @@ -982,10 +982,10 @@ static void shutdown(struct esp_struct *info) serial_out(info, UART_ESI_CMD2, UART_MCR); serial_out(info, UART_ESI_CMD2, info->MCR); - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&info->lock, flags); } @@ -1002,10 +1002,10 @@ static void change_speed(struct esp_struct *info) unsigned char flow1 = 0, flow2 = 0; unsigned long flags; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return; - cflag = info->tty->termios->c_cflag; - port = info->port; + cflag = info->port.tty->termios->c_cflag; + port = info->io_port; /* byte size and parity */ switch (cflag & CSIZE) { @@ -1029,9 +1029,9 @@ static void change_speed(struct esp_struct *info) if (cflag & CMSPAR) cval |= UART_LCR_SPAR; #endif - baud = tty_get_baud_rate(info->tty); + baud = tty_get_baud_rate(info->port.tty); if (baud == 38400 && - ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) + ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) quot = info->custom_divisor; else { if (baud == 134) /* Special case since 134 is really 134.5 */ @@ -1046,49 +1046,49 @@ static void change_speed(struct esp_struct *info) if (baud) { /* Actual rate */ baud = BASE_BAUD/quot; - tty_encode_baud_rate(info->tty, baud, baud); + tty_encode_baud_rate(info->port.tty, baud, baud); } info->timeout = ((1024 * HZ * bits * quot) / BASE_BAUD) + (HZ / 50); /* CTS flow control flag and modem status interrupts */ /* info->IER &= ~UART_IER_MSI; */ if (cflag & CRTSCTS) { - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; /* info->IER |= UART_IER_MSI; */ flow1 = 0x04; flow2 = 0x10; } else - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; if (cflag & CLOCAL) - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; else - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; /* * Set up parity check flag */ info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask |= UART_LSR_BI; info->ignore_status_mask = 0; #if 0 /* This should be safe, but for some broken bits of hardware... */ - if (I_IGNPAR(info->tty)) { + if (I_IGNPAR(info->port.tty)) { info->ignore_status_mask |= UART_LSR_PE | UART_LSR_FE; info->read_status_mask |= UART_LSR_PE | UART_LSR_FE; } #endif - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask |= UART_LSR_BI; info->read_status_mask |= UART_LSR_BI; /* * If we're ignore parity and break indicators, ignore * overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) { + if (I_IGNPAR(info->port.tty)) { info->ignore_status_mask |= UART_LSR_OE | \ UART_LSR_PE | UART_LSR_FE; info->read_status_mask |= UART_LSR_OE | \ @@ -1096,7 +1096,7 @@ static void change_speed(struct esp_struct *info) } } - if (I_IXOFF(info->tty)) + if (I_IXOFF(info->port.tty)) flow1 |= 0x81; spin_lock_irqsave(&info->lock, flags); @@ -1116,10 +1116,10 @@ static void change_speed(struct esp_struct *info) serial_out(info, UART_ESI_CMD2, flow2); /* set flow control characters (XON/XOFF only) */ - if (I_IXOFF(info->tty)) { + if (I_IXOFF(info->port.tty)) { serial_out(info, UART_ESI_CMD1, ESI_SET_FLOW_CHARS); - serial_out(info, UART_ESI_CMD2, START_CHAR(info->tty)); - serial_out(info, UART_ESI_CMD2, STOP_CHAR(info->tty)); + serial_out(info, UART_ESI_CMD2, START_CHAR(info->port.tty)); + serial_out(info, UART_ESI_CMD2, STOP_CHAR(info->port.tty)); serial_out(info, UART_ESI_CMD2, 0x10); serial_out(info, UART_ESI_CMD2, 0x21); switch (cflag & CSIZE) { @@ -1355,9 +1355,9 @@ static int get_serial_info(struct esp_struct *info, memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_16550A; tmp.line = info->line; - tmp.port = info->port; + tmp.port = info->io_port; tmp.irq = info->irq; - tmp.flags = info->flags; + tmp.flags = info->port.flags; tmp.xmit_fifo_size = 1024; tmp.baud_base = BASE_BAUD; tmp.close_delay = info->close_delay; @@ -1407,7 +1407,7 @@ static int set_serial_info(struct esp_struct *info, if ((new_serial.type != PORT_16550A) || (new_serial.hub6) || - (info->port != new_serial.port) || + (info->io_port != new_serial.port) || (new_serial.baud_base != BASE_BAUD) || (new_serial.irq > 15) || (new_serial.irq < 2) || @@ -1425,9 +1425,9 @@ static int set_serial_info(struct esp_struct *info, if (change_irq || (new_serial.close_delay != info->close_delay) || ((new_serial.flags & ~ASYNC_USR_MASK) != - (info->flags & ~ASYNC_USR_MASK))) + (info->port.flags & ~ASYNC_USR_MASK))) return -EPERM; - info->flags = ((info->flags & ~ASYNC_USR_MASK) | + info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) | (new_serial.flags & ASYNC_USR_MASK)); info->custom_divisor = new_serial.custom_divisor; } else { @@ -1441,9 +1441,9 @@ static int set_serial_info(struct esp_struct *info, if ((current_async->line >= info->line) && (current_async->line < (info->line + 8))) { if (current_async == info) { - if (current_async->count > 1) + if (current_async->port.count > 1) return -EBUSY; - } else if (current_async->count) + } else if (current_async->port.count) return -EBUSY; } @@ -1456,7 +1456,7 @@ static int set_serial_info(struct esp_struct *info, * At this point, we start making changes..... */ - info->flags = ((info->flags & ~ASYNC_FLAGS) | + info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) | (new_serial.flags & ASYNC_FLAGS)); info->custom_divisor = new_serial.custom_divisor; info->close_delay = new_serial.close_delay * HZ/100; @@ -1487,18 +1487,18 @@ static int set_serial_info(struct esp_struct *info, } } - if (info->flags & ASYNC_INITIALIZED) { - if (((old_info.flags & ASYNC_SPD_MASK) != - (info->flags & ASYNC_SPD_MASK)) || + if (info->port.flags & ASYNC_INITIALIZED) { + if (((old_info.port.flags & ASYNC_SPD_MASK) != + (info->port.flags & ASYNC_SPD_MASK)) || (old_info.custom_divisor != info->custom_divisor)) { - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - info->tty->alt_speed = 57600; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - info->tty->alt_speed = 115200; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) - info->tty->alt_speed = 230400; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) - info->tty->alt_speed = 460800; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + info->port.tty->alt_speed = 57600; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + info->port.tty->alt_speed = 115200; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + info->port.tty->alt_speed = 230400; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + info->port.tty->alt_speed = 460800; change_speed(info); } } else @@ -1554,9 +1554,9 @@ static int set_esp_config(struct esp_struct *info, while (current_async) { if (current_async == info) { - if (current_async->count > 1) + if (current_async->port.count > 1) return -EBUSY; - } else if (current_async->count) + } else if (current_async->port.count) return -EBUSY; current_async = current_async->next_port; @@ -1578,7 +1578,7 @@ static int set_esp_config(struct esp_struct *info, spin_unlock_irqrestore(&info->lock, flags); } else { /* DMA mode to PIO mode only */ - if (info->count > 1) + if (info->port.count > 1) return -EBUSY; shutdown(info); @@ -1634,7 +1634,7 @@ static int set_esp_config(struct esp_struct *info, spin_unlock_irqrestore(&info->lock, flags); } - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) retval = startup(info); return retval; @@ -1917,9 +1917,9 @@ static void rs_close(struct tty_struct *tty, struct file *filp) #ifdef SERIAL_DEBUG_OPEN printk(KERN_DEBUG "rs_close ttys%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif - if (tty->count == 1 && info->count != 1) { + if (tty->count == 1 && info->port.count != 1) { /* * Uh, oh. tty->count is 1, which means that the tty * structure will be freed. Info->count should always @@ -1927,19 +1927,19 @@ static void rs_close(struct tty_struct *tty, struct file *filp) * one, we've got real problems, since it means the * serial port won't be shutdown. */ - printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->count is %d\n", info->count); - info->count = 1; + printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->port.count is %d\n", info->port.count); + info->port.count = 1; } - if (--info->count < 0) { + if (--info->port.count < 0) { printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n", - info->line, info->count); - info->count = 0; + info->line, info->port.count); + info->port.count = 0; } - if (info->count) { + if (info->port.count) { DBG_CNT("before DEC-2"); goto out; } - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; spin_unlock_irqrestore(&info->lock, flags); /* @@ -1958,7 +1958,7 @@ static void rs_close(struct tty_struct *tty, struct file *filp) /* info->IER &= ~UART_IER_RLSI; */ info->IER &= ~UART_IER_RDI; info->read_status_mask &= ~UART_LSR_DR; - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { spin_lock_irqsave(&info->lock, flags); serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK); @@ -1981,15 +1981,15 @@ static void rs_close(struct tty_struct *tty, struct file *filp) rs_flush_buffer(tty); tty_ldisc_flush(tty); tty->closing = 0; - info->tty = NULL; + info->port.tty = NULL; - if (info->blocked_open) { + if (info->port.blocked_open) { if (info->close_delay) msleep_interruptible(jiffies_to_msecs(info->close_delay)); - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&info->close_wait); + info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + wake_up_interruptible(&info->port.close_wait); return; out: @@ -2047,10 +2047,10 @@ static void esp_hangup(struct tty_struct *tty) rs_flush_buffer(tty); shutdown(info); - info->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - info->tty = NULL; - wake_up_interruptible(&info->open_wait); + info->port.count = 0; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + info->port.tty = NULL; + wake_up_interruptible(&info->port.open_wait); } /* @@ -2071,11 +2071,11 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, * until it's done, and then try again. */ if (tty_hung_up_p(filp) || - (info->flags & ASYNC_CLOSING)) { - if (info->flags & ASYNC_CLOSING) - interruptible_sleep_on(&info->close_wait); + (info->port.flags & ASYNC_CLOSING)) { + if (info->port.flags & ASYNC_CLOSING) + interruptible_sleep_on(&info->port.close_wait); #ifdef SERIAL_DO_RESTART - if (info->flags & ASYNC_HUP_NOTIFY) + if (info->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; else return -ERESTARTSYS; @@ -2090,7 +2090,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, */ if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) { - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -2100,20 +2100,20 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, /* * Block waiting for the carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that + * this loop, info->port.count is dropped by one, so that * rs_close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&info->open_wait, &wait); + add_wait_queue(&info->port.open_wait, &wait); #ifdef SERIAL_DEBUG_OPEN printk(KERN_DEBUG "block_til_ready before block: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif spin_lock_irqsave(&info->lock, flags); if (!tty_hung_up_p(filp)) - info->count--; - info->blocked_open++; + info->port.count--; + info->port.blocked_open++; while (1) { if ((tty->termios->c_cflag & CBAUD)) { unsigned int scratch; @@ -2128,9 +2128,9 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, } set_current_state(TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || - !(info->flags & ASYNC_INITIALIZED)) { + !(info->port.flags & ASYNC_INITIALIZED)) { #ifdef SERIAL_DO_RESTART - if (info->flags & ASYNC_HUP_NOTIFY) + if (info->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; @@ -2144,7 +2144,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, if (serial_in(info, UART_ESI_STAT2) & UART_MSR_DCD) do_clocal = 1; - if (!(info->flags & ASYNC_CLOSING) && + if (!(info->port.flags & ASYNC_CLOSING) && (do_clocal)) break; if (signal_pending(current)) { @@ -2153,25 +2153,25 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, } #ifdef SERIAL_DEBUG_OPEN printk(KERN_DEBUG "block_til_ready blocking: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif spin_unlock_irqrestore(&info->lock, flags); schedule(); spin_lock_irqsave(&info->lock, flags); } set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); + remove_wait_queue(&info->port.open_wait, &wait); if (!tty_hung_up_p(filp)) - info->count++; - info->blocked_open--; + info->port.count++; + info->port.blocked_open--; spin_unlock_irqrestore(&info->lock, flags); #ifdef SERIAL_DEBUG_OPEN printk(KERN_DEBUG "block_til_ready after blocking: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif if (retval) return retval; - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -2204,12 +2204,12 @@ static int esp_open(struct tty_struct *tty, struct file *filp) } #ifdef SERIAL_DEBUG_OPEN - printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->count); + printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->port.count); #endif spin_lock_irqsave(&info->lock, flags); - info->count++; + info->port.count++; tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; spin_unlock_irqrestore(&info->lock, flags); @@ -2263,7 +2263,7 @@ static int autoconfig(struct esp_struct *info) int port_detected = 0; unsigned long flags; - if (!request_region(info->port, REGION_SIZE, "esp serial")) + if (!request_region(info->io_port, REGION_SIZE, "esp serial")) return -EIO; spin_lock_irqsave(&info->lock, flags); @@ -2300,7 +2300,7 @@ static int autoconfig(struct esp_struct *info) } } if (!port_detected) - release_region(info->port, REGION_SIZE); + release_region(info->io_port, REGION_SIZE); spin_unlock_irqrestore(&info->lock, flags); return (port_detected); @@ -2414,7 +2414,7 @@ static int __init espserial_init(void) offset = 0; do { - info->port = esp[i] + offset; + info->io_port = esp[i] + offset; info->irq = irq[i]; info->line = (i * 8) + (offset / 8); @@ -2425,9 +2425,9 @@ static int __init espserial_init(void) } info->custom_divisor = (divisor[i] >> (offset / 2)) & 0xf; - info->flags = STD_COM_FLAGS; + info->port.flags = STD_COM_FLAGS; if (info->custom_divisor) - info->flags |= ASYNC_SPD_CUST; + info->port.flags |= ASYNC_SPD_CUST; info->magic = ESP_MAGIC; info->close_delay = 5*HZ/10; info->closing_wait = 30*HZ; @@ -2436,13 +2436,13 @@ static int __init espserial_init(void) info->config.flow_off = flow_off; info->config.pio_threshold = pio_threshold; info->next_port = ports; - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + init_waitqueue_head(&info->port.open_wait); + init_waitqueue_head(&info->port.close_wait); init_waitqueue_head(&info->delta_msr_wait); init_waitqueue_head(&info->break_wait); ports = info; printk(KERN_INFO "ttyP%d at 0x%04x (irq = %d) is an ESP ", - info->line, info->port, info->irq); + info->line, info->io_port, info->irq); if (info->line % 8) { printk("secondary port\n"); @@ -2498,8 +2498,8 @@ static void __exit espserial_exit(void) put_tty_driver(esp_driver); while (ports) { - if (ports->port) - release_region(ports->port, REGION_SIZE); + if (ports->io_port) + release_region(ports->io_port, REGION_SIZE); temp_async = ports->next_port; kfree(ports); ports = temp_async; diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c index 252f73e4859..19d3afb0e50 100644 --- a/drivers/char/generic_serial.c +++ b/drivers/char/generic_serial.c @@ -60,7 +60,7 @@ int gs_put_char(struct tty_struct * tty, unsigned char ch) if (!port) return 0; - if (! (port->flags & ASYNC_INITIALIZED)) return 0; + if (! (port->port.flags & ASYNC_INITIALIZED)) return 0; /* Take a lock on the serial tranmit buffer! */ mutex_lock(& port->port_write_mutex); @@ -103,7 +103,7 @@ int gs_write(struct tty_struct * tty, if (!port) return 0; - if (! (port->flags & ASYNC_INITIALIZED)) + if (! (port->port.flags & ASYNC_INITIALIZED)) return 0; /* get exclusive "write" access to this port (problem 3) */ @@ -141,13 +141,13 @@ int gs_write(struct tty_struct * tty, mutex_unlock(& port->port_write_mutex); gs_dprintk (GS_DEBUG_WRITE, "write: interrupts are %s\n", - (port->flags & GS_TX_INTEN)?"enabled": "disabled"); + (port->port.flags & GS_TX_INTEN)?"enabled": "disabled"); if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped && - !(port->flags & GS_TX_INTEN)) { - port->flags |= GS_TX_INTEN; + !(port->port.flags & GS_TX_INTEN)) { + port->port.flags |= GS_TX_INTEN; port->rd->enable_tx_interrupts (port); } func_exit (); @@ -208,7 +208,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout) gs_dprintk (GS_DEBUG_FLUSH, "port=%p.\n", port); if (port) { gs_dprintk (GS_DEBUG_FLUSH, "xmit_cnt=%x, xmit_buf=%p, tty=%p.\n", - port->xmit_cnt, port->xmit_buf, port->tty); + port->xmit_cnt, port->xmit_buf, port->port.tty); } if (!port || port->xmit_cnt < 0 || !port->xmit_buf) { @@ -217,7 +217,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout) return -EINVAL; /* This is an error which we don't know how to handle. */ } - rcib = gs_real_chars_in_buffer(port->tty); + rcib = gs_real_chars_in_buffer(port->port.tty); if(rcib <= 0) { gs_dprintk (GS_DEBUG_FLUSH, "nothing to wait for.\n"); @@ -236,7 +236,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout) /* the expression is actually jiffies < end_jiffies, but that won't work around the wraparound. Tricky eh? */ - while ((charsleft = gs_real_chars_in_buffer (port->tty)) && + while ((charsleft = gs_real_chars_in_buffer (port->port.tty)) && time_after (end_jiffies, jiffies)) { /* Units check: chars * (bits/char) * (jiffies /sec) / (bits/sec) = jiffies! @@ -309,7 +309,7 @@ void gs_flush_chars(struct tty_struct * tty) } /* Beats me -- REW */ - port->flags |= GS_TX_INTEN; + port->port.flags |= GS_TX_INTEN; port->rd->enable_tx_interrupts (port); func_exit (); } @@ -329,8 +329,8 @@ void gs_stop(struct tty_struct * tty) if (port->xmit_cnt && port->xmit_buf && - (port->flags & GS_TX_INTEN) ) { - port->flags &= ~GS_TX_INTEN; + (port->port.flags & GS_TX_INTEN) ) { + port->port.flags &= ~GS_TX_INTEN; port->rd->disable_tx_interrupts (port); } func_exit (); @@ -349,8 +349,8 @@ void gs_start(struct tty_struct * tty) if (port->xmit_cnt && port->xmit_buf && - !(port->flags & GS_TX_INTEN) ) { - port->flags |= GS_TX_INTEN; + !(port->port.flags & GS_TX_INTEN) ) { + port->port.flags |= GS_TX_INTEN; port->rd->enable_tx_interrupts (port); } func_exit (); @@ -365,7 +365,7 @@ static void gs_shutdown_port (struct gs_port *port) if (!port) return; - if (!(port->flags & ASYNC_INITIALIZED)) + if (!(port->port.flags & ASYNC_INITIALIZED)) return; spin_lock_irqsave(&port->driver_lock, flags); @@ -375,12 +375,12 @@ static void gs_shutdown_port (struct gs_port *port) port->xmit_buf = NULL; } - if (port->tty) - set_bit(TTY_IO_ERROR, &port->tty->flags); + if (port->port.tty) + set_bit(TTY_IO_ERROR, &port->port.tty->flags); port->rd->shutdown_port (port); - port->flags &= ~ASYNC_INITIALIZED; + port->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&port->driver_lock, flags); func_exit(); @@ -396,16 +396,16 @@ void gs_hangup(struct tty_struct *tty) if (!tty) return; port = tty->driver_data; - tty = port->tty; + tty = port->port.tty; if (!tty) return; gs_shutdown_port (port); - port->flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE); - port->tty = NULL; - port->count = 0; + port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE); + port->port.tty = NULL; + port->port.count = 0; - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); func_exit (); } @@ -424,7 +424,7 @@ int gs_block_til_ready(void *port_, struct file * filp) if (!port) return 0; - tty = port->tty; + tty = port->port.tty; if (!tty) return 0; @@ -433,9 +433,9 @@ int gs_block_til_ready(void *port_, struct file * filp) * If the device is in the middle of being closed, then block * until it's done, and then try again. */ - if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&port->close_wait); - if (port->flags & ASYNC_HUP_NOTIFY) + if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&port->port.close_wait); + if (port->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; else return -ERESTARTSYS; @@ -449,7 +449,7 @@ int gs_block_til_ready(void *port_, struct file * filp) */ if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) { - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -461,34 +461,34 @@ int gs_block_til_ready(void *port_, struct file * filp) /* * Block waiting for the carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, port->count is dropped by one, so that + * this loop, port->port.count is dropped by one, so that * rs_close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&port->open_wait, &wait); + add_wait_queue(&port->port.open_wait, &wait); gs_dprintk (GS_DEBUG_BTR, "after add waitq.\n"); spin_lock_irqsave(&port->driver_lock, flags); if (!tty_hung_up_p(filp)) { - port->count--; + port->port.count--; } spin_unlock_irqrestore(&port->driver_lock, flags); - port->blocked_open++; + port->port.blocked_open++; while (1) { CD = port->rd->get_CD (port); gs_dprintk (GS_DEBUG_BTR, "CD is now %d.\n", CD); set_current_state (TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || - !(port->flags & ASYNC_INITIALIZED)) { - if (port->flags & ASYNC_HUP_NOTIFY) + !(port->port.flags & ASYNC_INITIALIZED)) { + if (port->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; break; } - if (!(port->flags & ASYNC_CLOSING) && + if (!(port->port.flags & ASYNC_CLOSING) && (do_clocal || CD)) break; gs_dprintk (GS_DEBUG_BTR, "signal_pending is now: %d (%lx)\n", @@ -500,17 +500,17 @@ int gs_block_til_ready(void *port_, struct file * filp) schedule(); } gs_dprintk (GS_DEBUG_BTR, "Got out of the loop. (%d)\n", - port->blocked_open); + port->port.blocked_open); set_current_state (TASK_RUNNING); - remove_wait_queue(&port->open_wait, &wait); + remove_wait_queue(&port->port.open_wait, &wait); if (!tty_hung_up_p(filp)) { - port->count++; + port->port.count++; } - port->blocked_open--; + port->port.blocked_open--; if (retval) return retval; - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; func_exit (); return 0; } @@ -529,10 +529,10 @@ void gs_close(struct tty_struct * tty, struct file * filp) if (!port) return; - if (!port->tty) { + if (!port->port.tty) { /* This seems to happen when this is called from vhangup. */ - gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->tty is NULL\n"); - port->tty = tty; + gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->port.tty is NULL\n"); + port->port.tty = tty; } spin_lock_irqsave(&port->driver_lock, flags); @@ -545,23 +545,23 @@ void gs_close(struct tty_struct * tty, struct file * filp) return; } - if ((tty->count == 1) && (port->count != 1)) { + if ((tty->count == 1) && (port->port.count != 1)) { printk(KERN_ERR "gs: gs_close port %p: bad port count;" - " tty->count is 1, port count is %d\n", port, port->count); - port->count = 1; + " tty->count is 1, port count is %d\n", port, port->port.count); + port->port.count = 1; } - if (--port->count < 0) { - printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->count); - port->count = 0; + if (--port->port.count < 0) { + printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->port.count); + port->port.count = 0; } - if (port->count) { - gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->count); + if (port->port.count) { + gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->port.count); spin_unlock_irqrestore(&port->driver_lock, flags); func_exit (); return; } - port->flags |= ASYNC_CLOSING; + port->port.flags |= ASYNC_CLOSING; /* * Now we wait for the transmit buffer to clear; and we notify @@ -585,7 +585,7 @@ void gs_close(struct tty_struct * tty, struct file * filp) if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE) gs_wait_tx_flushed (port, port->closing_wait); - port->flags &= ~GS_ACTIVE; + port->port.flags &= ~GS_ACTIVE; gs_flush_buffer(tty); @@ -595,18 +595,18 @@ void gs_close(struct tty_struct * tty, struct file * filp) port->event = 0; port->rd->close (port); port->rd->shutdown_port (port); - port->tty = NULL; + port->port.tty = NULL; - if (port->blocked_open) { + if (port->port.blocked_open) { if (port->close_delay) { spin_unlock_irqrestore(&port->driver_lock, flags); msleep_interruptible(jiffies_to_msecs(port->close_delay)); spin_lock_irqsave(&port->driver_lock, flags); } - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); } - port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED); - wake_up_interruptible(&port->close_wait); + port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED); + wake_up_interruptible(&port->port.close_wait); func_exit (); } @@ -626,10 +626,10 @@ void gs_set_termios (struct tty_struct * tty, port = tty->driver_data; if (!port) return; - if (!port->tty) { + if (!port->port.tty) { /* This seems to happen when this is called after gs_close. */ - gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->tty is NULL\n"); - port->tty = tty; + gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->port.tty is NULL\n"); + port->port.tty = tty; } @@ -651,15 +651,15 @@ void gs_set_termios (struct tty_struct * tty, baudrate = tty_get_baud_rate(tty); if ((tiosp->c_cflag & CBAUD) == B38400) { - if ( (port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ( (port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) baudrate = 57600; - else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) baudrate = 115200; - else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) baudrate = 230400; - else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) baudrate = 460800; - else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) + else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) baudrate = (port->baud_base / port->custom_divisor); } @@ -715,7 +715,7 @@ int gs_init_port(struct gs_port *port) func_enter (); - if (port->flags & ASYNC_INITIALIZED) { + if (port->port.flags & ASYNC_INITIALIZED) { func_exit (); return 0; } @@ -737,15 +737,15 @@ int gs_init_port(struct gs_port *port) } spin_lock_irqsave (&port->driver_lock, flags); - if (port->tty) - clear_bit(TTY_IO_ERROR, &port->tty->flags); + if (port->port.tty) + clear_bit(TTY_IO_ERROR, &port->port.tty->flags); mutex_init(&port->port_write_mutex); port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; spin_unlock_irqrestore(&port->driver_lock, flags); - gs_set_termios(port->tty, NULL); + gs_set_termios(port->port.tty, NULL); spin_lock_irqsave (&port->driver_lock, flags); - port->flags |= ASYNC_INITIALIZED; - port->flags &= ~GS_TX_INTEN; + port->port.flags |= ASYNC_INITIALIZED; + port->port.flags &= ~GS_TX_INTEN; spin_unlock_irqrestore(&port->driver_lock, flags); func_exit (); @@ -764,11 +764,11 @@ int gs_setserial(struct gs_port *port, struct serial_struct __user *sp) if ((sio.baud_base != port->baud_base) || (sio.close_delay != port->close_delay) || ((sio.flags & ~ASYNC_USR_MASK) != - (port->flags & ~ASYNC_USR_MASK))) + (port->port.flags & ~ASYNC_USR_MASK))) return(-EPERM); } - port->flags = (port->flags & ~ASYNC_USR_MASK) | + port->port.flags = (port->port.flags & ~ASYNC_USR_MASK) | (sio.flags & ASYNC_USR_MASK); port->baud_base = sio.baud_base; @@ -776,7 +776,7 @@ int gs_setserial(struct gs_port *port, struct serial_struct __user *sp) port->closing_wait = sio.closing_wait; port->custom_divisor = sio.custom_divisor; - gs_set_termios (port->tty, NULL); + gs_set_termios (port->port.tty, NULL); return 0; } @@ -793,7 +793,7 @@ int gs_getserial(struct gs_port *port, struct serial_struct __user *sp) struct serial_struct sio; memset(&sio, 0, sizeof(struct serial_struct)); - sio.flags = port->flags; + sio.flags = port->port.flags; sio.baud_base = port->baud_base; sio.close_delay = port->close_delay; sio.closing_wait = port->closing_wait; @@ -821,10 +821,10 @@ void gs_got_break(struct gs_port *port) { func_enter (); - tty_insert_flip_char(port->tty, 0, TTY_BREAK); - tty_schedule_flip(port->tty); - if (port->flags & ASYNC_SAK) { - do_SAK (port->tty); + tty_insert_flip_char(port->port.tty, 0, TTY_BREAK); + tty_schedule_flip(port->port.tty); + if (port->port.flags & ASYNC_SAK) { + do_SAK (port->port.tty); } func_exit (); diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index efd0b4db7c8..8822eca58ff 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -59,6 +59,19 @@ config HW_RANDOM_GEODE If unsure, say Y. +config HW_RANDOM_N2RNG + tristate "Niagara2 Random Number Generator support" + depends on HW_RANDOM && SPARC64 + default HW_RANDOM + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on Niagara2 cpus. + + To compile this driver as a module, choose M here: the + module will be called n2-rng. + + If unsure, say Y. + config HW_RANDOM_VIA tristate "VIA HW Random Number Generator support" depends on HW_RANDOM && X86_32 diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index b4940ddbb35..b6effb7522c 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -7,6 +7,8 @@ rng-core-y := core.o obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o +obj-$(CONFIG_HW_RANDOM_N2RNG) += n2-rng.o +n2-rng-y := n2-drv.o n2-asm.o obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o diff --git a/drivers/char/hw_random/n2-asm.S b/drivers/char/hw_random/n2-asm.S new file mode 100644 index 00000000000..9b6eb5cd59f --- /dev/null +++ b/drivers/char/hw_random/n2-asm.S @@ -0,0 +1,79 @@ +/* n2-asm.S: Niagara2 RNG hypervisor call assembler. + * + * Copyright (C) 2008 David S. Miller <davem@davemloft.net> + */ +#include <linux/linkage.h> +#include <asm/hypervisor.h> +#include "n2rng.h" + + .text + +ENTRY(sun4v_rng_get_diag_ctl) + mov HV_FAST_RNG_GET_DIAG_CTL, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_rng_get_diag_ctl) + +ENTRY(sun4v_rng_ctl_read_v1) + mov %o1, %o3 + mov %o2, %o4 + mov HV_FAST_RNG_CTL_READ, %o5 + ta HV_FAST_TRAP + stx %o1, [%o3] + retl + stx %o2, [%o4] +ENDPROC(sun4v_rng_ctl_read_v1) + +ENTRY(sun4v_rng_ctl_read_v2) + save %sp, -192, %sp + mov %i0, %o0 + mov %i1, %o1 + mov HV_FAST_RNG_CTL_READ, %o5 + ta HV_FAST_TRAP + stx %o1, [%i2] + stx %o2, [%i3] + stx %o3, [%i4] + stx %o4, [%i5] + ret + restore %g0, %o0, %o0 +ENDPROC(sun4v_rng_ctl_read_v2) + +ENTRY(sun4v_rng_ctl_write_v1) + mov %o3, %o4 + mov HV_FAST_RNG_CTL_WRITE, %o5 + ta HV_FAST_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_rng_ctl_write_v1) + +ENTRY(sun4v_rng_ctl_write_v2) + mov HV_FAST_RNG_CTL_WRITE, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(sun4v_rng_ctl_write_v2) + +ENTRY(sun4v_rng_data_read_diag_v1) + mov %o2, %o4 + mov HV_FAST_RNG_DATA_READ_DIAG, %o5 + ta HV_FAST_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_rng_data_read_diag_v1) + +ENTRY(sun4v_rng_data_read_diag_v2) + mov %o3, %o4 + mov HV_FAST_RNG_DATA_READ_DIAG, %o5 + ta HV_FAST_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_rng_data_read_diag_v2) + +ENTRY(sun4v_rng_data_read) + mov %o1, %o4 + mov HV_FAST_RNG_DATA_READ, %o5 + ta HV_FAST_TRAP + retl + stx %o1, [%o4] +ENDPROC(sun4v_rng_data_read) diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c new file mode 100644 index 00000000000..5220f541df2 --- /dev/null +++ b/drivers/char/hw_random/n2-drv.c @@ -0,0 +1,771 @@ +/* n2-drv.c: Niagara-2 RNG driver. + * + * Copyright (C) 2008 David S. Miller <davem@davemloft.net> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/workqueue.h> +#include <linux/preempt.h> +#include <linux/hw_random.h> + +#include <linux/of.h> +#include <linux/of_device.h> + +#include <asm/hypervisor.h> + +#include "n2rng.h" + +#define DRV_MODULE_NAME "n2rng" +#define PFX DRV_MODULE_NAME ": " +#define DRV_MODULE_VERSION "0.1" +#define DRV_MODULE_RELDATE "May 15, 2008" + +static char version[] __devinitdata = + DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; + +MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); +MODULE_DESCRIPTION("Niagara2 RNG driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_MODULE_VERSION); + +/* The Niagara2 RNG provides a 64-bit read-only random number + * register, plus a control register. Access to the RNG is + * virtualized through the hypervisor so that both guests and control + * nodes can access the device. + * + * The entropy source consists of raw entropy sources, each + * constructed from a voltage controlled oscillator whose phase is + * jittered by thermal noise sources. + * + * The oscillator in each of the three raw entropy sources run at + * different frequencies. Normally, all three generator outputs are + * gathered, xored together, and fed into a CRC circuit, the output of + * which is the 64-bit read-only register. + * + * Some time is necessary for all the necessary entropy to build up + * such that a full 64-bits of entropy are available in the register. + * In normal operating mode (RNG_CTL_LFSR is set), the chip implements + * an interlock which blocks register reads until sufficient entropy + * is available. + * + * A control register is provided for adjusting various aspects of RNG + * operation, and to enable diagnostic modes. Each of the three raw + * entropy sources has an enable bit (RNG_CTL_ES{1,2,3}). Also + * provided are fields for controlling the minimum time in cycles + * between read accesses to the register (RNG_CTL_WAIT, this controls + * the interlock described in the previous paragraph). + * + * The standard setting is to have the mode bit (RNG_CTL_LFSR) set, + * all three entropy sources enabled, and the interlock time set + * appropriately. + * + * The CRC polynomial used by the chip is: + * + * P(X) = x64 + x61 + x57 + x56 + x52 + x51 + x50 + x48 + x47 + x46 + + * x43 + x42 + x41 + x39 + x38 + x37 + x35 + x32 + x28 + x25 + + * x22 + x21 + x17 + x15 + x13 + x12 + x11 + x7 + x5 + x + 1 + * + * The RNG_CTL_VCO value of each noise cell must be programmed + * seperately. This is why 4 control register values must be provided + * to the hypervisor. During a write, the hypervisor writes them all, + * one at a time, to the actual RNG_CTL register. The first three + * values are used to setup the desired RNG_CTL_VCO for each entropy + * source, for example: + * + * control 0: (1 << RNG_CTL_VCO_SHIFT) | RNG_CTL_ES1 + * control 1: (2 << RNG_CTL_VCO_SHIFT) | RNG_CTL_ES2 + * control 2: (3 << RNG_CTL_VCO_SHIFT) | RNG_CTL_ES3 + * + * And then the fourth value sets the final chip state and enables + * desired. + */ + +static int n2rng_hv_err_trans(unsigned long hv_err) +{ + switch (hv_err) { + case HV_EOK: + return 0; + case HV_EWOULDBLOCK: + return -EAGAIN; + case HV_ENOACCESS: + return -EPERM; + case HV_EIO: + return -EIO; + case HV_EBUSY: + return -EBUSY; + case HV_EBADALIGN: + case HV_ENORADDR: + return -EFAULT; + default: + return -EINVAL; + } +} + +static unsigned long n2rng_generic_read_control_v2(unsigned long ra, + unsigned long unit) +{ + unsigned long hv_err, state, ticks, watchdog_delta, watchdog_status; + int block = 0, busy = 0; + + while (1) { + hv_err = sun4v_rng_ctl_read_v2(ra, unit, &state, + &ticks, + &watchdog_delta, + &watchdog_status); + if (hv_err == HV_EOK) + break; + + if (hv_err == HV_EBUSY) { + if (++busy >= N2RNG_BUSY_LIMIT) + break; + + udelay(1); + } else if (hv_err == HV_EWOULDBLOCK) { + if (++block >= N2RNG_BLOCK_LIMIT) + break; + + __delay(ticks); + } else + break; + } + + return hv_err; +} + +/* In multi-socket situations, the hypervisor might need to + * queue up the RNG control register write if it's for a unit + * that is on a cpu socket other than the one we are executing on. + * + * We poll here waiting for a successful read of that control + * register to make sure the write has been actually performed. + */ +static unsigned long n2rng_control_settle_v2(struct n2rng *np, int unit) +{ + unsigned long ra = __pa(&np->scratch_control[0]); + + return n2rng_generic_read_control_v2(ra, unit); +} + +static unsigned long n2rng_write_ctl_one(struct n2rng *np, int unit, + unsigned long state, + unsigned long control_ra, + unsigned long watchdog_timeout, + unsigned long *ticks) +{ + unsigned long hv_err; + + if (np->hvapi_major == 1) { + hv_err = sun4v_rng_ctl_write_v1(control_ra, state, + watchdog_timeout, ticks); + } else { + hv_err = sun4v_rng_ctl_write_v2(control_ra, state, + watchdog_timeout, unit); + if (hv_err == HV_EOK) + hv_err = n2rng_control_settle_v2(np, unit); + *ticks = N2RNG_ACCUM_CYCLES_DEFAULT; + } + + return hv_err; +} + +static int n2rng_generic_read_data(unsigned long data_ra) +{ + unsigned long ticks, hv_err; + int block = 0, hcheck = 0; + + while (1) { + hv_err = sun4v_rng_data_read(data_ra, &ticks); + if (hv_err == HV_EOK) + return 0; + + if (hv_err == HV_EWOULDBLOCK) { + if (++block >= N2RNG_BLOCK_LIMIT) + return -EWOULDBLOCK; + __delay(ticks); + } else if (hv_err == HV_ENOACCESS) { + return -EPERM; + } else if (hv_err == HV_EIO) { + if (++hcheck >= N2RNG_HCHECK_LIMIT) + return -EIO; + udelay(10000); + } else + return -ENODEV; + } +} + +static unsigned long n2rng_read_diag_data_one(struct n2rng *np, + unsigned long unit, + unsigned long data_ra, + unsigned long data_len, + unsigned long *ticks) +{ + unsigned long hv_err; + + if (np->hvapi_major == 1) { + hv_err = sun4v_rng_data_read_diag_v1(data_ra, data_len, ticks); + } else { + hv_err = sun4v_rng_data_read_diag_v2(data_ra, data_len, + unit, ticks); + if (!*ticks) + *ticks = N2RNG_ACCUM_CYCLES_DEFAULT; + } + return hv_err; +} + +static int n2rng_generic_read_diag_data(struct n2rng *np, + unsigned long unit, + unsigned long data_ra, + unsigned long data_len) +{ + unsigned long ticks, hv_err; + int block = 0; + + while (1) { + hv_err = n2rng_read_diag_data_one(np, unit, + data_ra, data_len, + &ticks); + if (hv_err == HV_EOK) + return 0; + + if (hv_err == HV_EWOULDBLOCK) { + if (++block >= N2RNG_BLOCK_LIMIT) + return -EWOULDBLOCK; + __delay(ticks); + } else if (hv_err == HV_ENOACCESS) { + return -EPERM; + } else if (hv_err == HV_EIO) { + return -EIO; + } else + return -ENODEV; + } +} + + +static int n2rng_generic_write_control(struct n2rng *np, + unsigned long control_ra, + unsigned long unit, + unsigned long state) +{ + unsigned long hv_err, ticks; + int block = 0, busy = 0; + + while (1) { + hv_err = n2rng_write_ctl_one(np, unit, state, control_ra, + np->wd_timeo, &ticks); + if (hv_err == HV_EOK) + return 0; + + if (hv_err == HV_EWOULDBLOCK) { + if (++block >= N2RNG_BLOCK_LIMIT) + return -EWOULDBLOCK; + __delay(ticks); + } else if (hv_err == HV_EBUSY) { + if (++busy >= N2RNG_BUSY_LIMIT) + return -EBUSY; + udelay(1); + } else + return -ENODEV; + } +} + +/* Just try to see if we can successfully access the control register + * of the RNG on the domain on which we are currently executing. + */ +static int n2rng_try_read_ctl(struct n2rng *np) +{ + unsigned long hv_err; + unsigned long x; + + if (np->hvapi_major == 1) { + hv_err = sun4v_rng_get_diag_ctl(); + } else { + /* We purposefully give invalid arguments, HV_NOACCESS + * is higher priority than the errors we'd get from + * these other cases, and that's the error we are + * truly interested in. + */ + hv_err = sun4v_rng_ctl_read_v2(0UL, ~0UL, &x, &x, &x, &x); + switch (hv_err) { + case HV_EWOULDBLOCK: + case HV_ENOACCESS: + break; + default: + hv_err = HV_EOK; + break; + } + } + + return n2rng_hv_err_trans(hv_err); +} + +#define CONTROL_DEFAULT_BASE \ + ((2 << RNG_CTL_ASEL_SHIFT) | \ + (N2RNG_ACCUM_CYCLES_DEFAULT << RNG_CTL_WAIT_SHIFT) | \ + RNG_CTL_LFSR) + +#define CONTROL_DEFAULT_0 \ + (CONTROL_DEFAULT_BASE | \ + (1 << RNG_CTL_VCO_SHIFT) | \ + RNG_CTL_ES1) +#define CONTROL_DEFAULT_1 \ + (CONTROL_DEFAULT_BASE | \ + (2 << RNG_CTL_VCO_SHIFT) | \ + RNG_CTL_ES2) +#define CONTROL_DEFAULT_2 \ + (CONTROL_DEFAULT_BASE | \ + (3 << RNG_CTL_VCO_SHIFT) | \ + RNG_CTL_ES3) +#define CONTROL_DEFAULT_3 \ + (CONTROL_DEFAULT_BASE | \ + RNG_CTL_ES1 | RNG_CTL_ES2 | RNG_CTL_ES3) + +static void n2rng_control_swstate_init(struct n2rng *np) +{ + int i; + + np->flags |= N2RNG_FLAG_CONTROL; + + np->health_check_sec = N2RNG_HEALTH_CHECK_SEC_DEFAULT; + np->accum_cycles = N2RNG_ACCUM_CYCLES_DEFAULT; + np->wd_timeo = N2RNG_WD_TIMEO_DEFAULT; + + for (i = 0; i < np->num_units; i++) { + struct n2rng_unit *up = &np->units[i]; + + up->control[0] = CONTROL_DEFAULT_0; + up->control[1] = CONTROL_DEFAULT_1; + up->control[2] = CONTROL_DEFAULT_2; + up->control[3] = CONTROL_DEFAULT_3; + } + + np->hv_state = HV_RNG_STATE_UNCONFIGURED; +} + +static int n2rng_grab_diag_control(struct n2rng *np) +{ + int i, busy_count, err = -ENODEV; + + busy_count = 0; + for (i = 0; i < 100; i++) { + err = n2rng_try_read_ctl(np); + if (err != -EAGAIN) + break; + + if (++busy_count > 100) { + dev_err(&np->op->dev, + "Grab diag control timeout.\n"); + return -ENODEV; + } + + udelay(1); + } + + return err; +} + +static int n2rng_init_control(struct n2rng *np) +{ + int err = n2rng_grab_diag_control(np); + + /* Not in the control domain, that's OK we are only a consumer + * of the RNG data, we don't setup and program it. + */ + if (err == -EPERM) + return 0; + if (err) + return err; + + n2rng_control_swstate_init(np); + + return 0; +} + +static int n2rng_data_read(struct hwrng *rng, u32 *data) +{ + struct n2rng *np = (struct n2rng *) rng->priv; + unsigned long ra = __pa(&np->test_data); + int len; + + if (!(np->flags & N2RNG_FLAG_READY)) { + len = 0; + } else if (np->flags & N2RNG_FLAG_BUFFER_VALID) { + np->flags &= ~N2RNG_FLAG_BUFFER_VALID; + *data = np->buffer; + len = 4; + } else { + int err = n2rng_generic_read_data(ra); + if (!err) { + np->buffer = np->test_data >> 32; + *data = np->test_data & 0xffffffff; + len = 4; + } else { + dev_err(&np->op->dev, "RNG error, restesting\n"); + np->flags &= ~N2RNG_FLAG_READY; + if (!(np->flags & N2RNG_FLAG_SHUTDOWN)) + schedule_delayed_work(&np->work, 0); + len = 0; + } + } + + return len; +} + +/* On a guest node, just make sure we can read random data properly. + * If a control node reboots or reloads it's n2rng driver, this won't + * work during that time. So we have to keep probing until the device + * becomes usable. + */ +static int n2rng_guest_check(struct n2rng *np) +{ + unsigned long ra = __pa(&np->test_data); + + return n2rng_generic_read_data(ra); +} + +static int n2rng_entropy_diag_read(struct n2rng *np, unsigned long unit, + u64 *pre_control, u64 pre_state, + u64 *buffer, unsigned long buf_len, + u64 *post_control, u64 post_state) +{ + unsigned long post_ctl_ra = __pa(post_control); + unsigned long pre_ctl_ra = __pa(pre_control); + unsigned long buffer_ra = __pa(buffer); + int err; + + err = n2rng_generic_write_control(np, pre_ctl_ra, unit, pre_state); + if (err) + return err; + + err = n2rng_generic_read_diag_data(np, unit, + buffer_ra, buf_len); + + (void) n2rng_generic_write_control(np, post_ctl_ra, unit, + post_state); + + return err; +} + +static u64 advance_polynomial(u64 poly, u64 val, int count) +{ + int i; + + for (i = 0; i < count; i++) { + int highbit_set = ((s64)val < 0); + + val <<= 1; + if (highbit_set) + val ^= poly; + } + + return val; +} + +static int n2rng_test_buffer_find(struct n2rng *np, u64 val) +{ + int i, count = 0; + + /* Purposefully skip over the first word. */ + for (i = 1; i < SELFTEST_BUFFER_WORDS; i++) { + if (np->test_buffer[i] == val) + count++; + } + return count; +} + +static void n2rng_dump_test_buffer(struct n2rng *np) +{ + int i; + + for (i = 0; i < SELFTEST_BUFFER_WORDS; i++) + dev_err(&np->op->dev, "Test buffer slot %d [0x%016lx]\n", + i, np->test_buffer[i]); +} + +static int n2rng_check_selftest_buffer(struct n2rng *np, unsigned long unit) +{ + u64 val = SELFTEST_VAL; + int err, matches, limit; + + matches = 0; + for (limit = 0; limit < SELFTEST_LOOPS_MAX; limit++) { + matches += n2rng_test_buffer_find(np, val); + if (matches >= SELFTEST_MATCH_GOAL) + break; + val = advance_polynomial(SELFTEST_POLY, val, 1); + } + + err = 0; + if (limit >= SELFTEST_LOOPS_MAX) { + err = -ENODEV; + dev_err(&np->op->dev, "Selftest failed on unit %lu\n", unit); + n2rng_dump_test_buffer(np); + } else + dev_info(&np->op->dev, "Selftest passed on unit %lu\n", unit); + + return err; +} + +static int n2rng_control_selftest(struct n2rng *np, unsigned long unit) +{ + int err; + + np->test_control[0] = (0x2 << RNG_CTL_ASEL_SHIFT); + np->test_control[1] = (0x2 << RNG_CTL_ASEL_SHIFT); + np->test_control[2] = (0x2 << RNG_CTL_ASEL_SHIFT); + np->test_control[3] = ((0x2 << RNG_CTL_ASEL_SHIFT) | + RNG_CTL_LFSR | + ((SELFTEST_TICKS - 2) << RNG_CTL_WAIT_SHIFT)); + + + err = n2rng_entropy_diag_read(np, unit, np->test_control, + HV_RNG_STATE_HEALTHCHECK, + np->test_buffer, + sizeof(np->test_buffer), + &np->units[unit].control[0], + np->hv_state); + if (err) + return err; + + return n2rng_check_selftest_buffer(np, unit); +} + +static int n2rng_control_check(struct n2rng *np) +{ + int i; + + for (i = 0; i < np->num_units; i++) { + int err = n2rng_control_selftest(np, i); + if (err) + return err; + } + return 0; +} + +/* The sanity checks passed, install the final configuration into the + * chip, it's ready to use. + */ +static int n2rng_control_configure_units(struct n2rng *np) +{ + int unit, err; + + err = 0; + for (unit = 0; unit < np->num_units; unit++) { + struct n2rng_unit *up = &np->units[unit]; + unsigned long ctl_ra = __pa(&up->control[0]); + int esrc; + u64 base; + + base = ((np->accum_cycles << RNG_CTL_WAIT_SHIFT) | + (2 << RNG_CTL_ASEL_SHIFT) | + RNG_CTL_LFSR); + + /* XXX This isn't the best. We should fetch a bunch + * XXX of words using each entropy source combined XXX + * with each VCO setting, and see which combinations + * XXX give the best random data. + */ + for (esrc = 0; esrc < 3; esrc++) + up->control[esrc] = base | + (esrc << RNG_CTL_VCO_SHIFT) | + (RNG_CTL_ES1 << esrc); + + up->control[3] = base | + (RNG_CTL_ES1 | RNG_CTL_ES2 | RNG_CTL_ES3); + + err = n2rng_generic_write_control(np, ctl_ra, unit, + HV_RNG_STATE_CONFIGURED); + if (err) + break; + } + + return err; +} + +static void n2rng_work(struct work_struct *work) +{ + struct n2rng *np = container_of(work, struct n2rng, work.work); + int err = 0; + + if (!(np->flags & N2RNG_FLAG_CONTROL)) { + err = n2rng_guest_check(np); + } else { + preempt_disable(); + err = n2rng_control_check(np); + preempt_enable(); + + if (!err) + err = n2rng_control_configure_units(np); + } + + if (!err) { + np->flags |= N2RNG_FLAG_READY; + dev_info(&np->op->dev, "RNG ready\n"); + } + + if (err && !(np->flags & N2RNG_FLAG_SHUTDOWN)) + schedule_delayed_work(&np->work, HZ * 2); +} + +static void __devinit n2rng_driver_version(void) +{ + static int n2rng_version_printed; + + if (n2rng_version_printed++ == 0) + pr_info("%s", version); +} + +static int __devinit n2rng_probe(struct of_device *op, + const struct of_device_id *match) +{ + int victoria_falls = (match->data != NULL); + int err = -ENOMEM; + struct n2rng *np; + + n2rng_driver_version(); + + np = kzalloc(sizeof(*np), GFP_KERNEL); + if (!np) + goto out; + np->op = op; + + INIT_DELAYED_WORK(&np->work, n2rng_work); + + if (victoria_falls) + np->flags |= N2RNG_FLAG_VF; + + err = -ENODEV; + np->hvapi_major = 2; + if (sun4v_hvapi_register(HV_GRP_RNG, + np->hvapi_major, + &np->hvapi_minor)) { + np->hvapi_major = 1; + if (sun4v_hvapi_register(HV_GRP_RNG, + np->hvapi_major, + &np->hvapi_minor)) { + dev_err(&op->dev, "Cannot register suitable " + "HVAPI version.\n"); + goto out_free; + } + } + + if (np->flags & N2RNG_FLAG_VF) { + if (np->hvapi_major < 2) { + dev_err(&op->dev, "VF RNG requires HVAPI major " + "version 2 or later, got %lu\n", + np->hvapi_major); + goto out_hvapi_unregister; + } + np->num_units = of_getintprop_default(op->node, + "rng-#units", 0); + if (!np->num_units) { + dev_err(&op->dev, "VF RNG lacks rng-#units property\n"); + goto out_hvapi_unregister; + } + } else + np->num_units = 1; + + dev_info(&op->dev, "Registered RNG HVAPI major %lu minor %lu\n", + np->hvapi_major, np->hvapi_minor); + + np->units = kzalloc(sizeof(struct n2rng_unit) * np->num_units, + GFP_KERNEL); + err = -ENOMEM; + if (!np->units) + goto out_hvapi_unregister; + + err = n2rng_init_control(np); + if (err) + goto out_free_units; + + dev_info(&op->dev, "Found %s RNG, units: %d\n", + ((np->flags & N2RNG_FLAG_VF) ? + "Victoria Falls" : "Niagara2"), + np->num_units); + + np->hwrng.name = "n2rng"; + np->hwrng.data_read = n2rng_data_read; + np->hwrng.priv = (unsigned long) np; + + err = hwrng_register(&np->hwrng); + if (err) + goto out_free_units; + + dev_set_drvdata(&op->dev, np); + + schedule_delayed_work(&np->work, 0); + + return 0; + +out_free_units: + kfree(np->units); + np->units = NULL; + +out_hvapi_unregister: + sun4v_hvapi_unregister(HV_GRP_RNG); + +out_free: + kfree(np); +out: + return err; +} + +static int __devexit n2rng_remove(struct of_device *op) +{ + struct n2rng *np = dev_get_drvdata(&op->dev); + + np->flags |= N2RNG_FLAG_SHUTDOWN; + + cancel_delayed_work_sync(&np->work); + + hwrng_unregister(&np->hwrng); + + sun4v_hvapi_unregister(HV_GRP_RNG); + + kfree(np->units); + np->units = NULL; + + kfree(np); + + dev_set_drvdata(&op->dev, NULL); + + return 0; +} + +static struct of_device_id n2rng_match[] = { + { + .name = "random-number-generator", + .compatible = "SUNW,n2-rng", + }, + { + .name = "random-number-generator", + .compatible = "SUNW,vf-rng", + .data = (void *) 1, + }, + {}, +}; +MODULE_DEVICE_TABLE(of, n2rng_match); + +static struct of_platform_driver n2rng_driver = { + .name = "n2rng", + .match_table = n2rng_match, + .probe = n2rng_probe, + .remove = __devexit_p(n2rng_remove), +}; + +static int __init n2rng_init(void) +{ + return of_register_driver(&n2rng_driver, &of_bus_type); +} + +static void __exit n2rng_exit(void) +{ + of_unregister_driver(&n2rng_driver); +} + +module_init(n2rng_init); +module_exit(n2rng_exit); diff --git a/drivers/char/hw_random/n2rng.h b/drivers/char/hw_random/n2rng.h new file mode 100644 index 00000000000..a2b81e7bfc1 --- /dev/null +++ b/drivers/char/hw_random/n2rng.h @@ -0,0 +1,118 @@ +/* n2rng.h: Niagara2 RNG defines. + * + * Copyright (C) 2008 David S. Miller <davem@davemloft.net> + */ + +#ifndef _N2RNG_H +#define _N2RNG_H + +#define RNG_CTL_WAIT 0x0000000001fffe00ULL /* Minimum wait time */ +#define RNG_CTL_WAIT_SHIFT 9 +#define RNG_CTL_BYPASS 0x0000000000000100ULL /* VCO voltage source */ +#define RNG_CTL_VCO 0x00000000000000c0ULL /* VCO rate control */ +#define RNG_CTL_VCO_SHIFT 6 +#define RNG_CTL_ASEL 0x0000000000000030ULL /* Analog MUX select */ +#define RNG_CTL_ASEL_SHIFT 4 +#define RNG_CTL_LFSR 0x0000000000000008ULL /* Use LFSR or plain shift */ +#define RNG_CTL_ES3 0x0000000000000004ULL /* Enable entropy source 3 */ +#define RNG_CTL_ES2 0x0000000000000002ULL /* Enable entropy source 2 */ +#define RNG_CTL_ES1 0x0000000000000001ULL /* Enable entropy source 1 */ + +#define HV_FAST_RNG_GET_DIAG_CTL 0x130 +#define HV_FAST_RNG_CTL_READ 0x131 +#define HV_FAST_RNG_CTL_WRITE 0x132 +#define HV_FAST_RNG_DATA_READ_DIAG 0x133 +#define HV_FAST_RNG_DATA_READ 0x134 + +#define HV_RNG_STATE_UNCONFIGURED 0 +#define HV_RNG_STATE_CONFIGURED 1 +#define HV_RNG_STATE_HEALTHCHECK 2 +#define HV_RNG_STATE_ERROR 3 + +#define HV_RNG_NUM_CONTROL 4 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_rng_get_diag_ctl(void); +extern unsigned long sun4v_rng_ctl_read_v1(unsigned long ctl_regs_ra, + unsigned long *state, + unsigned long *tick_delta); +extern unsigned long sun4v_rng_ctl_read_v2(unsigned long ctl_regs_ra, + unsigned long unit, + unsigned long *state, + unsigned long *tick_delta, + unsigned long *watchdog, + unsigned long *write_status); +extern unsigned long sun4v_rng_ctl_write_v1(unsigned long ctl_regs_ra, + unsigned long state, + unsigned long write_timeout, + unsigned long *tick_delta); +extern unsigned long sun4v_rng_ctl_write_v2(unsigned long ctl_regs_ra, + unsigned long state, + unsigned long write_timeout, + unsigned long unit); +extern unsigned long sun4v_rng_data_read_diag_v1(unsigned long data_ra, + unsigned long len, + unsigned long *tick_delta); +extern unsigned long sun4v_rng_data_read_diag_v2(unsigned long data_ra, + unsigned long len, + unsigned long unit, + unsigned long *tick_delta); +extern unsigned long sun4v_rng_data_read(unsigned long data_ra, + unsigned long *tick_delta); + +struct n2rng_unit { + u64 control[HV_RNG_NUM_CONTROL]; +}; + +struct n2rng { + struct of_device *op; + + unsigned long flags; +#define N2RNG_FLAG_VF 0x00000001 /* Victoria Falls RNG, else N2 */ +#define N2RNG_FLAG_CONTROL 0x00000002 /* Operating in control domain */ +#define N2RNG_FLAG_READY 0x00000008 /* Ready for hw-rng layer */ +#define N2RNG_FLAG_SHUTDOWN 0x00000010 /* Driver unregistering */ +#define N2RNG_FLAG_BUFFER_VALID 0x00000020 /* u32 buffer holds valid data */ + + int num_units; + struct n2rng_unit *units; + + struct hwrng hwrng; + u32 buffer; + + /* Registered hypervisor group API major and minor version. */ + unsigned long hvapi_major; + unsigned long hvapi_minor; + + struct delayed_work work; + + unsigned long hv_state; /* HV_RNG_STATE_foo */ + + unsigned long health_check_sec; + unsigned long accum_cycles; + unsigned long wd_timeo; +#define N2RNG_HEALTH_CHECK_SEC_DEFAULT 0 +#define N2RNG_ACCUM_CYCLES_DEFAULT 2048 +#define N2RNG_WD_TIMEO_DEFAULT 0 + + u64 scratch_control[HV_RNG_NUM_CONTROL]; + +#define SELFTEST_TICKS 38859 +#define SELFTEST_VAL ((u64)0xB8820C7BD387E32C) +#define SELFTEST_POLY ((u64)0x231DCEE91262B8A3) +#define SELFTEST_MATCH_GOAL 6 +#define SELFTEST_LOOPS_MAX 40000 +#define SELFTEST_BUFFER_WORDS 8 + + u64 test_data; + u64 test_control[HV_RNG_NUM_CONTROL]; + u64 test_buffer[SELFTEST_BUFFER_WORDS]; +}; + +#define N2RNG_BLOCK_LIMIT 60000 +#define N2RNG_BUSY_LIMIT 100 +#define N2RNG_HCHECK_LIMIT 100 + +#endif /* !(__ASSEMBLY__) */ + +#endif /* _N2RNG_H */ diff --git a/drivers/char/ip2/i2lib.c b/drivers/char/ip2/i2lib.c index 938879cc7bc..0061e18aff6 100644 --- a/drivers/char/ip2/i2lib.c +++ b/drivers/char/ip2/i2lib.c @@ -868,11 +868,11 @@ i2Input(i2ChanStrPtr pCh) amountToMove = count; } // Move the first block - pCh->pTTY->ldisc.receive_buf( pCh->pTTY, + pCh->pTTY->ldisc.ops->receive_buf( pCh->pTTY, &(pCh->Ibuf[stripIndex]), NULL, amountToMove ); // If we needed to wrap, do the second data move if (count > amountToMove) { - pCh->pTTY->ldisc.receive_buf( pCh->pTTY, + pCh->pTTY->ldisc.ops->receive_buf( pCh->pTTY, pCh->Ibuf, NULL, count - amountToMove ); } // Bump and wrap the stripIndex all at once by the amount of data read. This diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 9a2394cda94..5dc74404058 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -1289,11 +1289,12 @@ static void do_input(struct work_struct *work) // code duplicated from n_tty (ldisc) static inline void isig(int sig, struct tty_struct *tty, int flush) { + /* FIXME: This is completely bogus */ if (tty->pgrp) kill_pgrp(tty->pgrp, sig, 1); if (flush || !L_NOFLSH(tty)) { - if ( tty->ldisc.flush_buffer ) - tty->ldisc.flush_buffer(tty); + if ( tty->ldisc.ops->flush_buffer ) + tty->ldisc.ops->flush_buffer(tty); i2InputFlush( tty->driver_data ); } } @@ -1342,7 +1343,7 @@ static void do_status(struct work_struct *work) } tmp = pCh->pTTY->real_raw; pCh->pTTY->real_raw = 0; - pCh->pTTY->ldisc.receive_buf( pCh->pTTY, &brkc, &brkf, 1 ); + pCh->pTTY->ldisc->ops.receive_buf( pCh->pTTY, &brkc, &brkf, 1 ); pCh->pTTY->real_raw = tmp; } #endif /* NEVER_HAPPENS_AS_SETUP_XXX */ diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index 4f3cefa8eb0..d4281df10c2 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -198,17 +198,10 @@ struct isi_board { struct isi_port { unsigned short magic; - unsigned int flags; - int count; - int blocked_open; - int close_delay; + struct tty_port port; u16 channel; u16 status; - u16 closing_wait; struct isi_board *card; - struct tty_struct *tty; - wait_queue_head_t close_wait; - wait_queue_head_t open_wait; unsigned char *xmit_buf; int xmit_head; int xmit_tail; @@ -430,11 +423,11 @@ static void isicom_tx(unsigned long _data) for (; count > 0; count--, port++) { /* port not active or tx disabled to force flow control */ - if (!(port->flags & ASYNC_INITIALIZED) || + if (!(port->port.flags & ASYNC_INITIALIZED) || !(port->status & ISI_TXOK)) continue; - tty = port->tty; + tty = port->port.tty; if (tty == NULL) continue; @@ -458,7 +451,7 @@ static void isicom_tx(unsigned long _data) if (residue == YES) { residue = NO; if (cnt > 0) { - wrd |= (port->xmit_buf[port->xmit_tail] + wrd |= (port->port.xmit_buf[port->xmit_tail] << 8); port->xmit_tail = (port->xmit_tail + 1) & (SERIAL_XMIT_SIZE - 1); @@ -474,14 +467,14 @@ static void isicom_tx(unsigned long _data) if (cnt <= 0) break; word_count = cnt >> 1; - outsw(base, port->xmit_buf+port->xmit_tail, word_count); + outsw(base, port->port.xmit_buf+port->xmit_tail, word_count); port->xmit_tail = (port->xmit_tail + (word_count << 1)) & (SERIAL_XMIT_SIZE - 1); txcount -= (word_count << 1); port->xmit_cnt -= (word_count << 1); if (cnt & 0x0001) { residue = YES; - wrd = port->xmit_buf[port->xmit_tail]; + wrd = port->port.xmit_buf[port->xmit_tail]; port->xmit_tail = (port->xmit_tail + 1) & (SERIAL_XMIT_SIZE - 1); port->xmit_cnt--; @@ -548,13 +541,13 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } port = card->ports + channel; - if (!(port->flags & ASYNC_INITIALIZED)) { + if (!(port->port.flags & ASYNC_INITIALIZED)) { outw(0x0000, base+0x04); /* enable interrupts */ spin_unlock(&card->card_lock); return IRQ_HANDLED; } - tty = port->tty; + tty = port->port.tty; if (tty == NULL) { word_count = byte_count >> 1; while (byte_count > 1) { @@ -572,7 +565,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id) header = inw(base); switch (header & 0xff) { case 0: /* Change in EIA signals */ - if (port->flags & ASYNC_CHECK_CD) { + if (port->port.flags & ASYNC_CHECK_CD) { if (port->status & ISI_DCD) { if (!(header & ISI_DCD)) { /* Carrier has been lost */ @@ -585,7 +578,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id) /* Carrier has been detected */ pr_dbg("interrupt: DCD->high.\n"); port->status |= ISI_DCD; - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); } } else { if (header & ISI_DCD) @@ -594,17 +587,17 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id) port->status &= ~ISI_DCD; } - if (port->flags & ASYNC_CTS_FLOW) { - if (port->tty->hw_stopped) { + if (port->port.flags & ASYNC_CTS_FLOW) { + if (port->port.tty->hw_stopped) { if (header & ISI_CTS) { - port->tty->hw_stopped = 0; + port->port.tty->hw_stopped = 0; /* start tx ing */ port->status |= (ISI_TXOK | ISI_CTS); tty_wakeup(tty); } } else if (!(header & ISI_CTS)) { - port->tty->hw_stopped = 1; + port->port.tty->hw_stopped = 1; /* stop tx ing */ port->status &= ~(ISI_TXOK | ISI_CTS); } @@ -629,7 +622,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id) case 1: /* Received Break !!! */ tty_insert_flip_char(tty, 0, TTY_BREAK); - if (port->flags & ASYNC_SAK) + if (port->port.flags & ASYNC_SAK) do_SAK(tty); tty_flip_buffer_push(tty); break; @@ -681,7 +674,7 @@ static void isicom_config_port(struct isi_port *port) shift_count = card->shift_count; unsigned char flow_ctrl; - tty = port->tty; + tty = port->port.tty; if (tty == NULL) return; @@ -697,7 +690,7 @@ static void isicom_config_port(struct isi_port *port) /* 1,2,3,4 => 57.6, 115.2, 230, 460 kbps resp. */ if (baud < 1 || baud > 4) - port->tty->termios->c_cflag &= ~CBAUDEX; + port->port.tty->termios->c_cflag &= ~CBAUDEX; else baud += 15; } @@ -708,13 +701,13 @@ static void isicom_config_port(struct isi_port *port) * the 'setserial' utility. */ - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) baud++; /* 57.6 Kbps */ - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) baud += 2; /* 115 Kbps */ - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) baud += 3; /* 230 kbps*/ - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) baud += 4; /* 460 kbps*/ } if (linuxb_to_isib[baud] == -1) { @@ -754,15 +747,15 @@ static void isicom_config_port(struct isi_port *port) InterruptTheCard(base); } if (C_CLOCAL(tty)) - port->flags &= ~ASYNC_CHECK_CD; + port->port.flags &= ~ASYNC_CHECK_CD; else - port->flags |= ASYNC_CHECK_CD; + port->port.flags |= ASYNC_CHECK_CD; /* flow control settings ...*/ flow_ctrl = 0; - port->flags &= ~ASYNC_CTS_FLOW; + port->port.flags &= ~ASYNC_CTS_FLOW; if (C_CRTSCTS(tty)) { - port->flags |= ASYNC_CTS_FLOW; + port->port.flags |= ASYNC_CTS_FLOW; flow_ctrl |= ISICOM_CTSRTS; } if (I_IXON(tty)) @@ -809,23 +802,15 @@ static int isicom_setup_port(struct isi_port *port) struct isi_board *card = port->card; unsigned long flags; - if (port->flags & ASYNC_INITIALIZED) + if (port->port.flags & ASYNC_INITIALIZED) return 0; - if (!port->xmit_buf) { - /* Relies on BKL */ - unsigned long page = get_zeroed_page(GFP_KERNEL); - if (page == 0) - return -ENOMEM; - if (port->xmit_buf) - free_page(page); - else - port->xmit_buf = (unsigned char *) page; - } + if (tty_port_alloc_xmit_buf(&port->port) < 0) + return -ENOMEM; spin_lock_irqsave(&card->card_lock, flags); - if (port->tty) - clear_bit(TTY_IO_ERROR, &port->tty->flags); - if (port->count == 1) + if (port->port.tty) + clear_bit(TTY_IO_ERROR, &port->port.tty->flags); + if (port->port.count == 1) card->count++; port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; @@ -839,7 +824,7 @@ static int isicom_setup_port(struct isi_port *port) } isicom_config_port(port); - port->flags |= ASYNC_INITIALIZED; + port->port.flags |= ASYNC_INITIALIZED; spin_unlock_irqrestore(&card->card_lock, flags); return 0; @@ -855,10 +840,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, /* block if port is in the process of being closed */ - if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) { + if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) { pr_dbg("block_til_ready: close in progress.\n"); - interruptible_sleep_on(&port->close_wait); - if (port->flags & ASYNC_HUP_NOTIFY) + interruptible_sleep_on(&port->port.close_wait); + if (port->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; else return -ERESTARTSYS; @@ -869,7 +854,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) { pr_dbg("block_til_ready: non-block mode.\n"); - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -879,26 +864,26 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, /* block waiting for DCD to be asserted, and while callout dev is busy */ retval = 0; - add_wait_queue(&port->open_wait, &wait); + add_wait_queue(&port->port.open_wait, &wait); spin_lock_irqsave(&card->card_lock, flags); if (!tty_hung_up_p(filp)) - port->count--; - port->blocked_open++; + port->port.count--; + port->port.blocked_open++; spin_unlock_irqrestore(&card->card_lock, flags); while (1) { raise_dtr_rts(port); set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) { - if (port->flags & ASYNC_HUP_NOTIFY) + if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) { + if (port->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; break; } - if (!(port->flags & ASYNC_CLOSING) && + if (!(port->port.flags & ASYNC_CLOSING) && (do_clocal || (port->status & ISI_DCD))) { break; } @@ -909,15 +894,15 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, schedule(); } set_current_state(TASK_RUNNING); - remove_wait_queue(&port->open_wait, &wait); + remove_wait_queue(&port->port.open_wait, &wait); spin_lock_irqsave(&card->card_lock, flags); if (!tty_hung_up_p(filp)) - port->count++; - port->blocked_open--; + port->port.count++; + port->port.blocked_open--; spin_unlock_irqrestore(&card->card_lock, flags); if (retval) return retval; - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -947,9 +932,9 @@ static int isicom_open(struct tty_struct *tty, struct file *filp) isicom_setup_board(card); - port->count++; + port->port.count++; tty->driver_data = port; - port->tty = tty; + port->port.tty = tty; error = isicom_setup_port(port); if (error == 0) error = block_til_ready(tty, filp, port); @@ -970,18 +955,15 @@ static void isicom_shutdown_port(struct isi_port *port) struct isi_board *card = port->card; struct tty_struct *tty; - tty = port->tty; + tty = port->port.tty; - if (!(port->flags & ASYNC_INITIALIZED)) + if (!(port->port.flags & ASYNC_INITIALIZED)) return; - if (port->xmit_buf) { - free_page((unsigned long) port->xmit_buf); - port->xmit_buf = NULL; - } - port->flags &= ~ASYNC_INITIALIZED; + tty_port_free_xmit_buf(&port->port); + port->port.flags &= ~ASYNC_INITIALIZED; /* 3rd October 2000 : Vinayak P Risbud */ - port->tty = NULL; + port->port.tty = NULL; /*Fix done by Anil .S on 30-04-2001 remote login through isi port has dtr toggle problem @@ -1046,33 +1028,33 @@ static void isicom_close(struct tty_struct *tty, struct file *filp) return; } - if (tty->count == 1 && port->count != 1) { + if (tty->count == 1 && port->port.count != 1) { printk(KERN_WARNING "ISICOM:(0x%lx) isicom_close: bad port " "count tty->count = 1 port count = %d.\n", - card->base, port->count); - port->count = 1; + card->base, port->port.count); + port->port.count = 1; } - if (--port->count < 0) { + if (--port->port.count < 0) { printk(KERN_WARNING "ISICOM:(0x%lx) isicom_close: bad port " "count for channel%d = %d", card->base, port->channel, - port->count); - port->count = 0; + port->port.count); + port->port.count = 0; } - if (port->count) { + if (port->port.count) { spin_unlock_irqrestore(&card->card_lock, flags); return; } - port->flags |= ASYNC_CLOSING; + port->port.flags |= ASYNC_CLOSING; tty->closing = 1; spin_unlock_irqrestore(&card->card_lock, flags); - if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, port->closing_wait); + if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) + tty_wait_until_sent(tty, port->port.closing_wait); /* indicate to the card that no more data can be received on this port */ spin_lock_irqsave(&card->card_lock, flags); - if (port->flags & ASYNC_INITIALIZED) { + if (port->port.flags & ASYNC_INITIALIZED) { card->port_status &= ~(1 << port->channel); outw(card->port_status, card->base + 0x02); } @@ -1085,18 +1067,18 @@ static void isicom_close(struct tty_struct *tty, struct file *filp) spin_lock_irqsave(&card->card_lock, flags); tty->closing = 0; - if (port->blocked_open) { + if (port->port.blocked_open) { spin_unlock_irqrestore(&card->card_lock, flags); - if (port->close_delay) { + if (port->port.close_delay) { pr_dbg("scheduling until time out.\n"); msleep_interruptible( - jiffies_to_msecs(port->close_delay)); + jiffies_to_msecs(port->port.close_delay)); } spin_lock_irqsave(&card->card_lock, flags); - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); } - port->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); - wake_up_interruptible(&port->close_wait); + port->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); + wake_up_interruptible(&port->port.close_wait); spin_unlock_irqrestore(&card->card_lock, flags); } @@ -1112,9 +1094,6 @@ static int isicom_write(struct tty_struct *tty, const unsigned char *buf, if (isicom_paranoia_check(port, tty->name, "isicom_write")) return 0; - if (!port->xmit_buf) - return 0; - spin_lock_irqsave(&card->card_lock, flags); while (1) { @@ -1123,7 +1102,7 @@ static int isicom_write(struct tty_struct *tty, const unsigned char *buf, if (cnt <= 0) break; - memcpy(port->xmit_buf + port->xmit_head, buf, cnt); + memcpy(port->port.xmit_buf + port->xmit_head, buf, cnt); port->xmit_head = (port->xmit_head + cnt) & (SERIAL_XMIT_SIZE - 1); port->xmit_cnt += cnt; @@ -1147,16 +1126,13 @@ static int isicom_put_char(struct tty_struct *tty, unsigned char ch) if (isicom_paranoia_check(port, tty->name, "isicom_put_char")) return 0; - if (!port->xmit_buf) - return 0; - spin_lock_irqsave(&card->card_lock, flags); if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) { spin_unlock_irqrestore(&card->card_lock, flags); return 0; } - port->xmit_buf[port->xmit_head++] = ch; + port->port.xmit_buf[port->xmit_head++] = ch; port->xmit_head &= (SERIAL_XMIT_SIZE - 1); port->xmit_cnt++; spin_unlock_irqrestore(&card->card_lock, flags); @@ -1172,7 +1148,7 @@ static void isicom_flush_chars(struct tty_struct *tty) return; if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || - !port->xmit_buf) + !port->port.xmit_buf) return; /* this tells the transmitter to consider this port for @@ -1274,23 +1250,23 @@ static int isicom_set_serial_info(struct isi_port *port, lock_kernel(); - reconfig_port = ((port->flags & ASYNC_SPD_MASK) != + reconfig_port = ((port->port.flags & ASYNC_SPD_MASK) != (newinfo.flags & ASYNC_SPD_MASK)); if (!capable(CAP_SYS_ADMIN)) { - if ((newinfo.close_delay != port->close_delay) || - (newinfo.closing_wait != port->closing_wait) || + if ((newinfo.close_delay != port->port.close_delay) || + (newinfo.closing_wait != port->port.closing_wait) || ((newinfo.flags & ~ASYNC_USR_MASK) != - (port->flags & ~ASYNC_USR_MASK))) { + (port->port.flags & ~ASYNC_USR_MASK))) { unlock_kernel(); return -EPERM; } - port->flags = ((port->flags & ~ASYNC_USR_MASK) | + port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) | (newinfo.flags & ASYNC_USR_MASK)); } else { - port->close_delay = newinfo.close_delay; - port->closing_wait = newinfo.closing_wait; - port->flags = ((port->flags & ~ASYNC_FLAGS) | + port->port.close_delay = newinfo.close_delay; + port->port.closing_wait = newinfo.closing_wait; + port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) | (newinfo.flags & ASYNC_FLAGS)); } if (reconfig_port) { @@ -1314,10 +1290,10 @@ static int isicom_get_serial_info(struct isi_port *port, out_info.line = port - isi_ports; out_info.port = port->card->base; out_info.irq = port->card->irq; - out_info.flags = port->flags; + out_info.flags = port->port.flags; /* out_info.baud_base = ? */ - out_info.close_delay = port->close_delay; - out_info.closing_wait = port->closing_wait; + out_info.close_delay = port->port.close_delay; + out_info.closing_wait = port->port.closing_wait; unlock_kernel(); if (copy_to_user(info, &out_info, sizeof(out_info))) return -EFAULT; @@ -1454,10 +1430,10 @@ static void isicom_hangup(struct tty_struct *tty) isicom_shutdown_port(port); spin_unlock_irqrestore(&port->card->card_lock, flags); - port->count = 0; - port->flags &= ~ASYNC_NORMAL_ACTIVE; - port->tty = NULL; - wake_up_interruptible(&port->open_wait); + port->port.count = 0; + port->port.flags &= ~ASYNC_NORMAL_ACTIVE; + port->port.tty = NULL; + wake_up_interruptible(&port->port.open_wait); } @@ -1736,6 +1712,12 @@ static int __devinit isicom_probe(struct pci_dev *pdev, if (card_count >= BOARD_COUNT) goto err; + retval = pci_enable_device(pdev); + if (retval) { + dev_err(&pdev->dev, "failed to enable\n"); + goto err; + } + dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device); /* allot the first empty slot in the array */ @@ -1790,6 +1772,7 @@ errunrr: errdec: board->base = 0; card_count--; + pci_disable_device(pdev); err: return retval; } @@ -1806,6 +1789,7 @@ static void __devexit isicom_remove(struct pci_dev *pdev) pci_release_region(pdev, 3); board->base = 0; card_count--; + pci_disable_device(pdev); } static int __init isicom_init(void) @@ -1818,14 +1802,13 @@ static int __init isicom_init(void) isi_card[idx].ports = port; spin_lock_init(&isi_card[idx].card_lock); for (channel = 0; channel < 16; channel++, port++) { + tty_port_init(&port->port); port->magic = ISICOM_MAGIC; port->card = &isi_card[idx]; port->channel = channel; - port->close_delay = 50 * HZ/100; - port->closing_wait = 3000 * HZ/100; + port->port.close_delay = 50 * HZ/100; + port->port.closing_wait = 3000 * HZ/100; port->status = 0; - init_waitqueue_head(&port->open_wait); - init_waitqueue_head(&port->close_wait); /* . . . */ } isi_card[idx].base = 0; diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index 7c8b62f162b..7930fba4baf 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -598,7 +598,7 @@ static int stli_parsebrd(struct stlconf *confp, char **argp); static int stli_open(struct tty_struct *tty, struct file *filp); static void stli_close(struct tty_struct *tty, struct file *filp); static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count); -static void stli_putchar(struct tty_struct *tty, unsigned char ch); +static int stli_putchar(struct tty_struct *tty, unsigned char ch); static void stli_flushchars(struct tty_struct *tty); static int stli_writeroom(struct tty_struct *tty); static int stli_charsinbuffer(struct tty_struct *tty); @@ -735,8 +735,8 @@ static void stli_cleanup_ports(struct stlibrd *brdp) for (j = 0; j < STL_MAXPORTS; j++) { portp = brdp->ports[j]; if (portp != NULL) { - if (portp->tty != NULL) - tty_hangup(portp->tty); + if (portp->port.tty != NULL) + tty_hangup(portp->port.tty); kfree(portp); } } @@ -811,9 +811,9 @@ static int stli_open(struct tty_struct *tty, struct file *filp) * The sleep here does not need interrupt protection since the wakeup * for it is done with the same context. */ - if (portp->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&portp->close_wait); - if (portp->flags & ASYNC_HUP_NOTIFY) + if (portp->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&portp->port.close_wait); + if (portp->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; return -ERESTARTSYS; } @@ -824,19 +824,19 @@ static int stli_open(struct tty_struct *tty, struct file *filp) * requires several commands to the board we will need to wait for any * other open that is already initializing the port. */ - portp->tty = tty; + portp->port.tty = tty; tty->driver_data = portp; - portp->refcount++; + portp->port.count++; wait_event_interruptible(portp->raw_wait, !test_bit(ST_INITIALIZING, &portp->state)); if (signal_pending(current)) return -ERESTARTSYS; - if ((portp->flags & ASYNC_INITIALIZED) == 0) { + if ((portp->port.flags & ASYNC_INITIALIZED) == 0) { set_bit(ST_INITIALIZING, &portp->state); if ((rc = stli_initopen(brdp, portp)) >= 0) { - portp->flags |= ASYNC_INITIALIZED; + portp->port.flags |= ASYNC_INITIALIZED; clear_bit(TTY_IO_ERROR, &tty->flags); } clear_bit(ST_INITIALIZING, &portp->state); @@ -851,9 +851,9 @@ static int stli_open(struct tty_struct *tty, struct file *filp) * The sleep here does not need interrupt protection since the wakeup * for it is done with the same context. */ - if (portp->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&portp->close_wait); - if (portp->flags & ASYNC_HUP_NOTIFY) + if (portp->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&portp->port.close_wait); + if (portp->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; return -ERESTARTSYS; } @@ -867,7 +867,7 @@ static int stli_open(struct tty_struct *tty, struct file *filp) if ((rc = stli_waitcarrier(brdp, portp, filp)) != 0) return rc; } - portp->flags |= ASYNC_NORMAL_ACTIVE; + portp->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -888,14 +888,14 @@ static void stli_close(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&stli_lock, flags); return; } - if ((tty->count == 1) && (portp->refcount != 1)) - portp->refcount = 1; - if (portp->refcount-- > 1) { + if ((tty->count == 1) && (portp->port.count != 1)) + portp->port.count = 1; + if (portp->port.count-- > 1) { spin_unlock_irqrestore(&stli_lock, flags); return; } - portp->flags |= ASYNC_CLOSING; + portp->port.flags |= ASYNC_CLOSING; /* * May want to wait for data to drain before closing. The BUSY flag @@ -911,7 +911,7 @@ static void stli_close(struct tty_struct *tty, struct file *filp) if (portp->closing_wait != ASYNC_CLOSING_WAIT_NONE) tty_wait_until_sent(tty, portp->closing_wait); - portp->flags &= ~ASYNC_INITIALIZED; + portp->port.flags &= ~ASYNC_INITIALIZED; brdp = stli_brds[portp->brdnr]; stli_rawclose(brdp, portp, 0, 0); if (tty->termios->c_cflag & HUPCL) { @@ -925,22 +925,22 @@ static void stli_close(struct tty_struct *tty, struct file *filp) clear_bit(ST_TXBUSY, &portp->state); clear_bit(ST_RXSTOP, &portp->state); set_bit(TTY_IO_ERROR, &tty->flags); - if (tty->ldisc.flush_buffer) - (tty->ldisc.flush_buffer)(tty); + if (tty->ldisc.ops->flush_buffer) + (tty->ldisc.ops->flush_buffer)(tty); set_bit(ST_DOFLUSHRX, &portp->state); stli_flushbuffer(tty); tty->closing = 0; - portp->tty = NULL; + portp->port.tty = NULL; if (portp->openwaitcnt) { if (portp->close_delay) msleep_interruptible(jiffies_to_msecs(portp->close_delay)); - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); } - portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&portp->close_wait); + portp->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + wake_up_interruptible(&portp->port.close_wait); } /*****************************************************************************/ @@ -970,7 +970,7 @@ static int stli_initopen(struct stlibrd *brdp, struct stliport *portp) sizeof(asynotify_t), 0)) < 0) return rc; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return -ENODEV; stli_mkasyport(portp, &aport, tty->termios); @@ -1169,7 +1169,7 @@ static int stli_setport(struct stliport *portp) if (portp == NULL) return -ENODEV; - if (portp->tty == NULL) + if (portp->port.tty == NULL) return -ENODEV; if (portp->brdnr >= stli_nrbrds) return -ENODEV; @@ -1177,7 +1177,7 @@ static int stli_setport(struct stliport *portp) if (brdp == NULL) return -ENODEV; - stli_mkasyport(portp, &aport, portp->tty->termios); + stli_mkasyport(portp, &aport, portp->port.tty->termios); return(stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0)); } @@ -1196,13 +1196,13 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct rc = 0; doclocal = 0; - if (portp->tty->termios->c_cflag & CLOCAL) + if (portp->port.tty->termios->c_cflag & CLOCAL) doclocal++; spin_lock_irqsave(&stli_lock, flags); portp->openwaitcnt++; if (! tty_hung_up_p(filp)) - portp->refcount--; + portp->port.count--; spin_unlock_irqrestore(&stli_lock, flags); for (;;) { @@ -1211,14 +1211,14 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct &portp->asig, sizeof(asysigs_t), 0)) < 0) break; if (tty_hung_up_p(filp) || - ((portp->flags & ASYNC_INITIALIZED) == 0)) { - if (portp->flags & ASYNC_HUP_NOTIFY) + ((portp->port.flags & ASYNC_INITIALIZED) == 0)) { + if (portp->port.flags & ASYNC_HUP_NOTIFY) rc = -EBUSY; else rc = -ERESTARTSYS; break; } - if (((portp->flags & ASYNC_CLOSING) == 0) && + if (((portp->port.flags & ASYNC_CLOSING) == 0) && (doclocal || (portp->sigs & TIOCM_CD))) { break; } @@ -1226,12 +1226,12 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct rc = -ERESTARTSYS; break; } - interruptible_sleep_on(&portp->open_wait); + interruptible_sleep_on(&portp->port.open_wait); } spin_lock_irqsave(&stli_lock, flags); if (! tty_hung_up_p(filp)) - portp->refcount++; + portp->port.count++; portp->openwaitcnt--; spin_unlock_irqrestore(&stli_lock, flags); @@ -1333,7 +1333,7 @@ static int stli_write(struct tty_struct *tty, const unsigned char *buf, int coun * first them do the new ports. */ -static void stli_putchar(struct tty_struct *tty, unsigned char ch) +static int stli_putchar(struct tty_struct *tty, unsigned char ch) { if (tty != stli_txcooktty) { if (stli_txcooktty != NULL) @@ -1342,6 +1342,7 @@ static void stli_putchar(struct tty_struct *tty, unsigned char ch) } stli_txcookbuf[stli_txcooksize++] = ch; + return 0; } /*****************************************************************************/ @@ -1548,7 +1549,7 @@ static int stli_getserial(struct stliport *portp, struct serial_struct __user *s sio.type = PORT_UNKNOWN; sio.line = portp->portnr; sio.irq = 0; - sio.flags = portp->flags; + sio.flags = portp->port.flags; sio.baud_base = portp->baud_base; sio.close_delay = portp->close_delay; sio.closing_wait = portp->closing_wait; @@ -1583,11 +1584,11 @@ static int stli_setserial(struct stliport *portp, struct serial_struct __user *s if ((sio.baud_base != portp->baud_base) || (sio.close_delay != portp->close_delay) || ((sio.flags & ~ASYNC_USR_MASK) != - (portp->flags & ~ASYNC_USR_MASK))) + (portp->port.flags & ~ASYNC_USR_MASK))) return -EPERM; } - portp->flags = (portp->flags & ~ASYNC_USR_MASK) | + portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) | (sio.flags & ASYNC_USR_MASK); portp->baud_base = sio.baud_base; portp->close_delay = sio.close_delay; @@ -1660,7 +1661,6 @@ static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cm { struct stliport *portp; struct stlibrd *brdp; - unsigned int ival; int rc; void __user *argp = (void __user *)arg; @@ -1751,7 +1751,7 @@ static void stli_settermios(struct tty_struct *tty, struct ktermios *old) if ((old->c_cflag & CRTSCTS) && ((tiosp->c_cflag & CRTSCTS) == 0)) tty->hw_stopped = 0; if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL)) - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); } /*****************************************************************************/ @@ -1834,7 +1834,7 @@ static void stli_hangup(struct tty_struct *tty) if (brdp == NULL) return; - portp->flags &= ~ASYNC_INITIALIZED; + portp->port.flags &= ~ASYNC_INITIALIZED; if (!test_bit(ST_CLOSING, &portp->state)) stli_rawclose(brdp, portp, 0, 0); @@ -1855,12 +1855,12 @@ static void stli_hangup(struct tty_struct *tty) clear_bit(ST_TXBUSY, &portp->state); clear_bit(ST_RXSTOP, &portp->state); set_bit(TTY_IO_ERROR, &tty->flags); - portp->tty = NULL; - portp->flags &= ~ASYNC_NORMAL_ACTIVE; - portp->refcount = 0; + portp->port.tty = NULL; + portp->port.flags &= ~ASYNC_NORMAL_ACTIVE; + portp->port.count = 0; spin_unlock_irqrestore(&stli_lock, flags); - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); } /*****************************************************************************/ @@ -2188,7 +2188,7 @@ static void stli_read(struct stlibrd *brdp, struct stliport *portp) if (test_bit(ST_RXSTOP, &portp->state)) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -2362,7 +2362,7 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp) if (ap->notify) { nt = ap->changed; ap->notify = 0; - tty = portp->tty; + tty = portp->port.tty; if (nt.signal & SG_DCD) { oldsigs = portp->sigs; @@ -2370,10 +2370,10 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp) clear_bit(ST_GETSIGS, &portp->state); if ((portp->sigs & TIOCM_CD) && ((oldsigs & TIOCM_CD) == 0)) - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); if ((oldsigs & TIOCM_CD) && ((portp->sigs & TIOCM_CD) == 0)) { - if (portp->flags & ASYNC_CHECK_CD) { + if (portp->port.flags & ASYNC_CHECK_CD) { if (tty) tty_hangup(tty); } @@ -2392,7 +2392,7 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp) if ((nt.data & DT_RXBREAK) && (portp->rxmarkmsk & BRKINT)) { if (tty != NULL) { tty_insert_flip_char(tty, 0, TTY_BREAK); - if (portp->flags & ASYNC_SAK) { + if (portp->port.flags & ASYNC_SAK) { do_SAK(tty); EBRDENABLE(brdp); } @@ -2542,17 +2542,17 @@ static void stli_mkasyport(struct stliport *portp, asyport_t *pp, struct ktermio /* * Start of by setting the baud, char size, parity and stop bit info. */ - pp->baudout = tty_get_baud_rate(portp->tty); + pp->baudout = tty_get_baud_rate(portp->port.tty); if ((tiosp->c_cflag & CBAUD) == B38400) { - if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) pp->baudout = 57600; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) pp->baudout = 115200; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) pp->baudout = 230400; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) pp->baudout = 460800; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) pp->baudout = (portp->baud_base / portp->custom_divisor); } if (pp->baudout > STL_MAXBAUD) @@ -2625,9 +2625,9 @@ static void stli_mkasyport(struct stliport *portp, asyport_t *pp, struct ktermio * Set up clocal processing as required. */ if (tiosp->c_cflag & CLOCAL) - portp->flags &= ~ASYNC_CHECK_CD; + portp->port.flags &= ~ASYNC_CHECK_CD; else - portp->flags |= ASYNC_CHECK_CD; + portp->port.flags |= ASYNC_CHECK_CD; /* * Transfer any persistent flags into the asyport structure. @@ -2703,8 +2703,8 @@ static int stli_initports(struct stlibrd *brdp) portp->baud_base = STL_BAUDBASE; portp->close_delay = STL_CLOSEDELAY; portp->closing_wait = 30 * HZ; - init_waitqueue_head(&portp->open_wait); - init_waitqueue_head(&portp->close_wait); + init_waitqueue_head(&portp->port.open_wait); + init_waitqueue_head(&portp->port.close_wait); init_waitqueue_head(&portp->raw_wait); panelport++; if (panelport >= brdp->panels[panelnr]) { @@ -4246,18 +4246,18 @@ static int stli_portcmdstats(struct stliport *portp) stli_comstats.panel = portp->panelnr; stli_comstats.port = portp->portnr; stli_comstats.state = portp->state; - stli_comstats.flags = portp->flags; + stli_comstats.flags = portp->port.flags; spin_lock_irqsave(&brd_lock, flags); - if (portp->tty != NULL) { - if (portp->tty->driver_data == portp) { - stli_comstats.ttystate = portp->tty->flags; + if (portp->port.tty != NULL) { + if (portp->port.tty->driver_data == portp) { + stli_comstats.ttystate = portp->port.tty->flags; stli_comstats.rxbuffered = -1; - if (portp->tty->termios != NULL) { - stli_comstats.cflags = portp->tty->termios->c_cflag; - stli_comstats.iflags = portp->tty->termios->c_iflag; - stli_comstats.oflags = portp->tty->termios->c_oflag; - stli_comstats.lflags = portp->tty->termios->c_lflag; + if (portp->port.tty->termios != NULL) { + stli_comstats.cflags = portp->port.tty->termios->c_cflag; + stli_comstats.iflags = portp->port.tty->termios->c_iflag; + stli_comstats.oflags = portp->port.tty->termios->c_oflag; + stli_comstats.lflags = portp->port.tty->termios->c_lflag; } } } diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c index d9a0a53c842..7b3a212c86b 100644 --- a/drivers/char/keyboard.c +++ b/drivers/char/keyboard.c @@ -46,6 +46,8 @@ extern void ctrl_alt_del(void); +#define to_handle_h(n) container_of(n, struct input_handle, h_node) + /* * Exported functions/variables */ diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 070e22e8ea9..b6772d65754 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -80,7 +80,7 @@ static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t size) } #endif -#ifdef CONFIG_NONPROMISC_DEVMEM +#ifdef CONFIG_STRICT_DEVMEM static inline int range_is_allowed(unsigned long pfn, unsigned long size) { u64 from = ((u64)pfn) << PAGE_SHIFT; diff --git a/drivers/char/mmtimer.c b/drivers/char/mmtimer.c index 192961fd717..918711aa56f 100644 --- a/drivers/char/mmtimer.c +++ b/drivers/char/mmtimer.c @@ -32,6 +32,7 @@ #include <linux/interrupt.h> #include <linux/time.h> #include <linux/math64.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/sn/addrs.h> @@ -57,8 +58,8 @@ extern unsigned long sn_rtc_cycles_per_second; #define rtc_time() (*RTC_COUNTER_ADDR) -static int mmtimer_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); +static long mmtimer_ioctl(struct file *file, unsigned int cmd, + unsigned long arg); static int mmtimer_mmap(struct file *file, struct vm_area_struct *vma); /* @@ -67,9 +68,9 @@ static int mmtimer_mmap(struct file *file, struct vm_area_struct *vma); static unsigned long mmtimer_femtoperiod = 0; static const struct file_operations mmtimer_fops = { - .owner = THIS_MODULE, - .mmap = mmtimer_mmap, - .ioctl = mmtimer_ioctl, + .owner = THIS_MODULE, + .mmap = mmtimer_mmap, + .unlocked_ioctl = mmtimer_ioctl, }; /* @@ -339,7 +340,6 @@ restart: /** * mmtimer_ioctl - ioctl interface for /dev/mmtimer - * @inode: inode of the device * @file: file structure for the device * @cmd: command to execute * @arg: optional argument to command @@ -365,11 +365,13 @@ restart: * %MMTIMER_GETCOUNTER - Gets the current value in the counter and places it * in the address specified by @arg. */ -static int mmtimer_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long mmtimer_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { int ret = 0; + lock_kernel(); + switch (cmd) { case MMTIMER_GETOFFSET: /* offset of the counter */ /* @@ -384,15 +386,14 @@ static int mmtimer_ioctl(struct inode *inode, struct file *file, case MMTIMER_GETRES: /* resolution of the clock in 10^-15 s */ if(copy_to_user((unsigned long __user *)arg, &mmtimer_femtoperiod, sizeof(unsigned long))) - return -EFAULT; + ret = -EFAULT; break; case MMTIMER_GETFREQ: /* frequency in Hz */ if(copy_to_user((unsigned long __user *)arg, &sn_rtc_cycles_per_second, sizeof(unsigned long))) - return -EFAULT; - ret = 0; + ret = -EFAULT; break; case MMTIMER_GETBITS: /* number of bits in the clock */ @@ -406,13 +407,13 @@ static int mmtimer_ioctl(struct inode *inode, struct file *file, case MMTIMER_GETCOUNTER: if(copy_to_user((unsigned long __user *)arg, RTC_COUNTER_ADDR, sizeof(unsigned long))) - return -EFAULT; + ret = -EFAULT; break; default: - ret = -ENOSYS; + ret = -ENOTTY; break; } - + unlock_kernel(); return ret; } diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index e21346da310..2bba250ffc8 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -130,17 +130,13 @@ struct moxaq_str { }; struct moxa_port { + struct tty_port port; struct moxa_board_conf *board; - struct tty_struct *tty; void __iomem *tableAddr; int type; - int close_delay; - unsigned int count; - int asyncflags; int cflag; unsigned long statusflags; - wait_queue_head_t open_wait; u8 DCDState; u8 lineCtrl; @@ -348,10 +344,10 @@ static int moxa_ioctl(struct tty_struct *tty, struct file *file, if (status & 4) tmp.dcd = 1; - if (!p->tty || !p->tty->termios) + if (!p->port.tty || !p->port.tty->termios) tmp.cflag = p->cflag; else - tmp.cflag = p->tty->termios->c_cflag; + tmp.cflag = p->port.tty->termios->c_cflag; copy: if (copy_to_user(argm, &tmp, sizeof(tmp))) { mutex_unlock(&moxa_openlock); @@ -825,10 +821,9 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev) } for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) { + tty_port_init(&p->port); p->type = PORT_16550A; - p->close_delay = 5 * HZ / 10; p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; - init_waitqueue_head(&p->open_wait); } switch (brd->boardType) { @@ -884,12 +879,12 @@ static void moxa_board_deinit(struct moxa_board_conf *brd) /* pci hot-un-plug support */ for (a = 0; a < brd->numPorts; a++) - if (brd->ports[a].asyncflags & ASYNC_INITIALIZED) - tty_hangup(brd->ports[a].tty); + if (brd->ports[a].port.flags & ASYNC_INITIALIZED) + tty_hangup(brd->ports[a].port.tty); while (1) { opened = 0; for (a = 0; a < brd->numPorts; a++) - if (brd->ports[a].asyncflags & ASYNC_INITIALIZED) + if (brd->ports[a].port.flags & ASYNC_INITIALIZED) opened++; mutex_unlock(&moxa_openlock); if (!opened) @@ -1104,9 +1099,9 @@ static void moxa_close_port(struct moxa_port *ch) { moxa_shut_down(ch); MoxaPortFlushData(ch, 2); - ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; - ch->tty->driver_data = NULL; - ch->tty = NULL; + ch->port.flags &= ~ASYNC_NORMAL_ACTIVE; + ch->port.tty->driver_data = NULL; + ch->port.tty = NULL; } static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp, @@ -1117,7 +1112,7 @@ static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp, u8 dcd; while (1) { - prepare_to_wait(&ch->open_wait, &wait, TASK_INTERRUPTIBLE); + prepare_to_wait(&ch->port.open_wait, &wait, TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp)) { #ifdef SERIAL_DO_RESTART retval = -ERESTARTSYS; @@ -1138,7 +1133,7 @@ static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp, } schedule(); } - finish_wait(&ch->open_wait, &wait); + finish_wait(&ch->port.open_wait, &wait); return retval; } @@ -1163,16 +1158,16 @@ static int moxa_open(struct tty_struct *tty, struct file *filp) } ch = &brd->ports[port % MAX_PORTS_PER_BOARD]; - ch->count++; + ch->port.count++; tty->driver_data = ch; - ch->tty = tty; - if (!(ch->asyncflags & ASYNC_INITIALIZED)) { + ch->port.tty = tty; + if (!(ch->port.flags & ASYNC_INITIALIZED)) { ch->statusflags = 0; moxa_set_tty_param(tty, tty->termios); MoxaPortLineCtrl(ch, 1, 1); MoxaPortEnable(ch); MoxaSetFifo(ch, ch->type == PORT_16550A); - ch->asyncflags |= ASYNC_INITIALIZED; + ch->port.flags |= ASYNC_INITIALIZED; } mutex_unlock(&moxa_openlock); @@ -1181,11 +1176,11 @@ static int moxa_open(struct tty_struct *tty, struct file *filp) retval = moxa_block_till_ready(tty, filp, ch); mutex_lock(&moxa_openlock); if (retval) { - if (ch->count) /* 0 means already hung up... */ - if (--ch->count == 0) + if (ch->port.count) /* 0 means already hung up... */ + if (--ch->port.count == 0) moxa_close_port(ch); } else - ch->asyncflags |= ASYNC_NORMAL_ACTIVE; + ch->port.flags |= ASYNC_NORMAL_ACTIVE; mutex_unlock(&moxa_openlock); return retval; @@ -1204,21 +1199,21 @@ static void moxa_close(struct tty_struct *tty, struct file *filp) ch = tty->driver_data; if (ch == NULL) goto unlock; - if (tty->count == 1 && ch->count != 1) { + if (tty->count == 1 && ch->port.count != 1) { printk(KERN_WARNING "moxa_close: bad serial port count; " - "tty->count is 1, ch->count is %d\n", ch->count); - ch->count = 1; + "tty->count is 1, ch->port.count is %d\n", ch->port.count); + ch->port.count = 1; } - if (--ch->count < 0) { + if (--ch->port.count < 0) { printk(KERN_WARNING "moxa_close: bad serial port count, " "device=%s\n", tty->name); - ch->count = 0; + ch->port.count = 0; } - if (ch->count) + if (ch->port.count) goto unlock; ch->cflag = tty->termios->c_cflag; - if (ch->asyncflags & ASYNC_INITIALIZED) { + if (ch->port.flags & ASYNC_INITIALIZED) { moxa_setup_empty_event(tty); tty_wait_until_sent(tty, 30 * HZ); /* 30 seconds timeout */ } @@ -1374,7 +1369,7 @@ static void moxa_set_termios(struct tty_struct *tty, return; moxa_set_tty_param(tty, old_termios); if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty)) - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); } static void moxa_stop(struct tty_struct *tty) @@ -1412,20 +1407,20 @@ static void moxa_hangup(struct tty_struct *tty) mutex_unlock(&moxa_openlock); return; } - ch->count = 0; + ch->port.count = 0; moxa_close_port(ch); mutex_unlock(&moxa_openlock); - wake_up_interruptible(&ch->open_wait); + wake_up_interruptible(&ch->port.open_wait); } static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd) { dcd = !!dcd; - if (dcd != p->DCDState && p->tty && C_CLOCAL(p->tty)) { + if (dcd != p->DCDState && p->port.tty && C_CLOCAL(p->port.tty)) { if (!dcd) - tty_hangup(p->tty); + tty_hangup(p->port.tty); } p->DCDState = dcd; } @@ -1433,9 +1428,9 @@ static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd) static int moxa_poll_port(struct moxa_port *p, unsigned int handle, u16 __iomem *ip) { - struct tty_struct *tty = p->tty; + struct tty_struct *tty = p->port.tty; void __iomem *ofsAddr; - unsigned int inited = p->asyncflags & ASYNC_INITIALIZED; + unsigned int inited = p->port.flags & ASYNC_INITIALIZED; u16 intr; if (tty) { @@ -1566,9 +1561,9 @@ static void moxa_setup_empty_event(struct tty_struct *tty) static void moxa_shut_down(struct moxa_port *ch) { - struct tty_struct *tp = ch->tty; + struct tty_struct *tp = ch->port.tty; - if (!(ch->asyncflags & ASYNC_INITIALIZED)) + if (!(ch->port.flags & ASYNC_INITIALIZED)) return; MoxaPortDisable(ch); @@ -1580,7 +1575,7 @@ static void moxa_shut_down(struct moxa_port *ch) MoxaPortLineCtrl(ch, 0, 0); spin_lock_bh(&moxa_lock); - ch->asyncflags &= ~ASYNC_INITIALIZED; + ch->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_bh(&moxa_lock); } @@ -1975,7 +1970,7 @@ static int MoxaPortWriteData(struct moxa_port *port, c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask); if (c > len) c = len; - moxaLog.txcnt[port->tty->index] += c; + moxaLog.txcnt[port->port.tty->index] += c; total = c; if (spage == epage) { bufhead = readw(ofsAddr + Ofs_txb); @@ -2017,7 +2012,7 @@ static int MoxaPortWriteData(struct moxa_port *port, static int MoxaPortReadData(struct moxa_port *port) { - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; unsigned char *dst; void __iomem *baseAddr, *ofsAddr, *ofs; unsigned int count, len, total; @@ -2124,10 +2119,10 @@ static int moxa_get_serial_info(struct moxa_port *info, { struct serial_struct tmp = { .type = info->type, - .line = info->tty->index, - .flags = info->asyncflags, + .line = info->port.tty->index, + .flags = info->port.flags, .baud_base = 921600, - .close_delay = info->close_delay + .close_delay = info->port.close_delay }; return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0; } @@ -2148,13 +2143,13 @@ static int moxa_set_serial_info(struct moxa_port *info, if (!capable(CAP_SYS_ADMIN)) { if (((new_serial.flags & ~ASYNC_USR_MASK) != - (info->asyncflags & ~ASYNC_USR_MASK))) + (info->port.flags & ~ASYNC_USR_MASK))) return -EPERM; } else - info->close_delay = new_serial.close_delay * HZ / 100; + info->port.close_delay = new_serial.close_delay * HZ / 100; new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS); - new_serial.flags |= (info->asyncflags & ASYNC_FLAGS); + new_serial.flags |= (info->port.flags & ASYNC_FLAGS); MoxaSetFifo(info, new_serial.type == PORT_16550A); diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c index 4b81a85c5b5..6307e301bd2 100644 --- a/drivers/char/mxser.c +++ b/drivers/char/mxser.c @@ -222,8 +222,8 @@ struct mxser_mon_ext { struct mxser_board; struct mxser_port { + struct tty_port port; struct mxser_board *board; - struct tty_struct *tty; unsigned long ioaddr; unsigned long opmode_ioaddr; @@ -234,7 +234,6 @@ struct mxser_port { int rx_low_water; int baud_base; /* max. speed */ int type; /* UART type */ - int flags; /* defined in tty.h */ int x_char; /* xon/xoff character */ int IER; /* Interrupt Enable Register */ @@ -244,20 +243,14 @@ struct mxser_port { unsigned char ldisc_stop_rx; int custom_divisor; - int close_delay; - unsigned short closing_wait; unsigned char err_shadow; - unsigned long event; - int count; /* # of fd on device */ - int blocked_open; /* # of blocked opens */ struct async_icount icount; /* kernel counters for 4 input interrupts */ int timeout; int read_status_mask; int ignore_status_mask; int xmit_fifo_size; - unsigned char *xmit_buf; int xmit_head; int xmit_tail; int xmit_cnt; @@ -267,7 +260,6 @@ struct mxser_port { struct mxser_mon mon_data; spinlock_t slock; - wait_queue_head_t open_wait; wait_queue_head_t delta_msr_wait; }; @@ -575,7 +567,7 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, */ if ((filp->f_flags & O_NONBLOCK) || test_bit(TTY_IO_ERROR, &tty->flags)) { - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -585,32 +577,32 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, /* * Block waiting for the carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, port->count is dropped by one, so that + * this loop, port->port.count is dropped by one, so that * mxser_close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&port->open_wait, &wait); + add_wait_queue(&port->port.open_wait, &wait); spin_lock_irqsave(&port->slock, flags); if (!tty_hung_up_p(filp)) - port->count--; + port->port.count--; spin_unlock_irqrestore(&port->slock, flags); - port->blocked_open++; + port->port.blocked_open++; while (1) { spin_lock_irqsave(&port->slock, flags); outb(inb(port->ioaddr + UART_MCR) | UART_MCR_DTR | UART_MCR_RTS, port->ioaddr + UART_MCR); spin_unlock_irqrestore(&port->slock, flags); set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) { - if (port->flags & ASYNC_HUP_NOTIFY) + if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) { + if (port->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; break; } - if (!(port->flags & ASYNC_CLOSING) && + if (!(port->port.flags & ASYNC_CLOSING) && (do_clocal || (inb(port->ioaddr + UART_MSR) & UART_MSR_DCD))) break; @@ -621,13 +613,13 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, schedule(); } set_current_state(TASK_RUNNING); - remove_wait_queue(&port->open_wait, &wait); + remove_wait_queue(&port->port.open_wait, &wait); if (!tty_hung_up_p(filp)) - port->count++; - port->blocked_open--; + port->port.count++; + port->port.blocked_open--; if (retval) return retval; - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -636,7 +628,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) int quot = 0, baud; unsigned char cval; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return -1; if (!(info->ioaddr)) @@ -647,13 +639,13 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) if (newspd == 134) { quot = 2 * info->baud_base / 269; - tty_encode_baud_rate(info->tty, 134, 134); + tty_encode_baud_rate(info->port.tty, 134, 134); } else if (newspd) { quot = info->baud_base / newspd; if (quot == 0) quot = 1; baud = info->baud_base/quot; - tty_encode_baud_rate(info->tty, baud, baud); + tty_encode_baud_rate(info->port.tty, baud, baud); } else { quot = 0; } @@ -679,7 +671,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */ #ifdef BOTHER - if (C_BAUD(info->tty) == BOTHER) { + if (C_BAUD(info->port.tty) == BOTHER) { quot = info->baud_base % newspd; quot *= 8; if (quot % newspd > newspd / 2) { @@ -707,14 +699,14 @@ static int mxser_change_speed(struct mxser_port *info, int ret = 0; unsigned char status; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return ret; - cflag = info->tty->termios->c_cflag; + cflag = info->port.tty->termios->c_cflag; if (!(info->ioaddr)) return ret; - if (mxser_set_baud_method[info->tty->index] == 0) - mxser_set_baud(info, tty_get_baud_rate(info->tty)); + if (mxser_set_baud_method[info->port.tty->index] == 0) + mxser_set_baud(info, tty_get_baud_rate(info->port.tty)); /* byte size and parity */ switch (cflag & CSIZE) { @@ -777,15 +769,15 @@ static int mxser_change_speed(struct mxser_port *info, info->IER &= ~UART_IER_MSI; info->MCR &= ~UART_MCR_AFE; if (cflag & CRTSCTS) { - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; info->IER |= UART_IER_MSI; if ((info->type == PORT_16550A) || (info->board->chip_flag)) { info->MCR |= UART_MCR_AFE; } else { status = inb(info->ioaddr + UART_MSR); - if (info->tty->hw_stopped) { + if (info->port.tty->hw_stopped) { if (status & UART_MSR_CTS) { - info->tty->hw_stopped = 0; + info->port.tty->hw_stopped = 0; if (info->type != PORT_16550A && !info->board->chip_flag) { outb(info->IER & ~UART_IER_THRI, @@ -795,11 +787,11 @@ static int mxser_change_speed(struct mxser_port *info, outb(info->IER, info->ioaddr + UART_IER); } - tty_wakeup(info->tty); + tty_wakeup(info->port.tty); } } else { if (!(status & UART_MSR_CTS)) { - info->tty->hw_stopped = 1; + info->port.tty->hw_stopped = 1; if ((info->type != PORT_16550A) && (!info->board->chip_flag)) { info->IER &= ~UART_IER_THRI; @@ -810,13 +802,13 @@ static int mxser_change_speed(struct mxser_port *info, } } } else { - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; } outb(info->MCR, info->ioaddr + UART_MCR); if (cflag & CLOCAL) { - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; } else { - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; info->IER |= UART_IER_MSI; } outb(info->IER, info->ioaddr + UART_IER); @@ -825,21 +817,21 @@ static int mxser_change_speed(struct mxser_port *info, * Set up parity check flag */ info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask |= UART_LSR_BI; info->ignore_status_mask = 0; - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask |= UART_LSR_BI; info->read_status_mask |= UART_LSR_BI; /* * If we're ignore parity and break indicators, ignore * overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) { + if (I_IGNPAR(info->port.tty)) { info->ignore_status_mask |= UART_LSR_OE | UART_LSR_PE | @@ -851,16 +843,16 @@ static int mxser_change_speed(struct mxser_port *info, } } if (info->board->chip_flag) { - mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->tty)); - mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->tty)); - if (I_IXON(info->tty)) { + mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->port.tty)); + mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->port.tty)); + if (I_IXON(info->port.tty)) { mxser_enable_must_rx_software_flow_control( info->ioaddr); } else { mxser_disable_must_rx_software_flow_control( info->ioaddr); } - if (I_IXOFF(info->tty)) { + if (I_IXOFF(info->port.tty)) { mxser_enable_must_tx_software_flow_control( info->ioaddr); } else { @@ -890,15 +882,15 @@ static void mxser_check_modem_status(struct mxser_port *port, int status) port->mon_data.modem_status = status; wake_up_interruptible(&port->delta_msr_wait); - if ((port->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { + if ((port->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { if (status & UART_MSR_DCD) - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); } - if (port->flags & ASYNC_CTS_FLOW) { - if (port->tty->hw_stopped) { + if (port->port.flags & ASYNC_CTS_FLOW) { + if (port->port.tty->hw_stopped) { if (status & UART_MSR_CTS) { - port->tty->hw_stopped = 0; + port->port.tty->hw_stopped = 0; if ((port->type != PORT_16550A) && (!port->board->chip_flag)) { @@ -908,11 +900,11 @@ static void mxser_check_modem_status(struct mxser_port *port, int status) outb(port->IER, port->ioaddr + UART_IER); } - tty_wakeup(port->tty); + tty_wakeup(port->port.tty); } } else { if (!(status & UART_MSR_CTS)) { - port->tty->hw_stopped = 1; + port->port.tty->hw_stopped = 1; if (port->type != PORT_16550A && !port->board->chip_flag) { port->IER &= ~UART_IER_THRI; @@ -935,23 +927,23 @@ static int mxser_startup(struct mxser_port *info) spin_lock_irqsave(&info->slock, flags); - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { free_page(page); spin_unlock_irqrestore(&info->slock, flags); return 0; } if (!info->ioaddr || !info->type) { - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); free_page(page); spin_unlock_irqrestore(&info->slock, flags); return 0; } - if (info->xmit_buf) + if (info->port.xmit_buf) free_page(page); else - info->xmit_buf = (unsigned char *) page; + info->port.xmit_buf = (unsigned char *) page; /* * Clear the FIFO buffers and disable them @@ -973,8 +965,8 @@ static int mxser_startup(struct mxser_port *info) if (inb(info->ioaddr + UART_LSR) == 0xff) { spin_unlock_irqrestore(&info->slock, flags); if (capable(CAP_SYS_ADMIN)) { - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); return 0; } else return -ENODEV; @@ -1012,15 +1004,15 @@ static int mxser_startup(struct mxser_port *info) (void) inb(info->ioaddr + UART_IIR); (void) inb(info->ioaddr + UART_MSR); - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; /* * and set the speed of the serial port */ mxser_change_speed(info, NULL); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; spin_unlock_irqrestore(&info->slock, flags); return 0; @@ -1034,7 +1026,7 @@ static void mxser_shutdown(struct mxser_port *info) { unsigned long flags; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; spin_lock_irqsave(&info->slock, flags); @@ -1048,15 +1040,15 @@ static void mxser_shutdown(struct mxser_port *info) /* * Free the IRQ, if necessary */ - if (info->xmit_buf) { - free_page((unsigned long) info->xmit_buf); - info->xmit_buf = NULL; + if (info->port.xmit_buf) { + free_page((unsigned long) info->port.xmit_buf); + info->port.xmit_buf = NULL; } info->IER = 0; outb(0x00, info->ioaddr + UART_IER); - if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) + if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) info->MCR &= ~(UART_MCR_DTR | UART_MCR_RTS); outb(info->MCR, info->ioaddr + UART_MCR); @@ -1072,10 +1064,10 @@ static void mxser_shutdown(struct mxser_port *info) /* read data port to reset things */ (void) inb(info->ioaddr + UART_RX); - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; if (info->board->chip_flag) SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr); @@ -1105,12 +1097,12 @@ static int mxser_open(struct tty_struct *tty, struct file *filp) return -ENODEV; tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; /* * Start up serial port */ spin_lock_irqsave(&info->slock, flags); - info->count++; + info->port.count++; spin_unlock_irqrestore(&info->slock, flags); retval = mxser_startup(info); if (retval) @@ -1170,42 +1162,42 @@ static void mxser_close(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&info->slock, flags); return; } - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->port.count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. Info->count should always + * structure will be freed. Info->port.count should always * be one in these conditions. If it's greater than * one, we've got real problems, since it means the * serial port won't be shutdown. */ printk(KERN_ERR "mxser_close: bad serial port count; " - "tty->count is 1, info->count is %d\n", info->count); - info->count = 1; + "tty->count is 1, info->port.count is %d\n", info->port.count); + info->port.count = 1; } - if (--info->count < 0) { + if (--info->port.count < 0) { printk(KERN_ERR "mxser_close: bad serial port count for " - "ttys%d: %d\n", tty->index, info->count); - info->count = 0; + "ttys%d: %d\n", tty->index, info->port.count); + info->port.count = 0; } - if (info->count) { + if (info->port.count) { spin_unlock_irqrestore(&info->slock, flags); return; } - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; spin_unlock_irqrestore(&info->slock, flags); /* * Save the termios structure, since this port may have * separate termios for callout and dialin. */ - if (info->flags & ASYNC_NORMAL_ACTIVE) + if (info->port.flags & ASYNC_NORMAL_ACTIVE) info->normal_termios = *tty->termios; /* * Now we wait for the transmit buffer to clear; and we notify * the line discipline to only process XON/XOFF characters. */ tty->closing = 1; - if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, info->closing_wait); + if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) + tty_wait_until_sent(tty, info->port.closing_wait); /* * At this point we stop accepting input. To do this, we * disable the receive line status interrupts, and tell the @@ -1216,7 +1208,7 @@ static void mxser_close(struct tty_struct *tty, struct file *filp) if (info->board->chip_flag) info->IER &= ~MOXA_MUST_RECV_ISR; - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { outb(info->IER, info->ioaddr + UART_IER); /* * Before we drop DTR, make sure the UART transmitter @@ -1236,15 +1228,14 @@ static void mxser_close(struct tty_struct *tty, struct file *filp) tty_ldisc_flush(tty); tty->closing = 0; - info->event = 0; - info->tty = NULL; - if (info->blocked_open) { - if (info->close_delay) - schedule_timeout_interruptible(info->close_delay); - wake_up_interruptible(&info->open_wait); + info->port.tty = NULL; + if (info->port.blocked_open) { + if (info->port.close_delay) + schedule_timeout_interruptible(info->port.close_delay); + wake_up_interruptible(&info->port.open_wait); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); + info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); } static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count) @@ -1253,7 +1244,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou struct mxser_port *info = tty->driver_data; unsigned long flags; - if (!info->xmit_buf) + if (!info->port.xmit_buf) return 0; while (1) { @@ -1262,7 +1253,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou if (c <= 0) break; - memcpy(info->xmit_buf + info->xmit_head, buf, c); + memcpy(info->port.xmit_buf + info->xmit_head, buf, c); spin_lock_irqsave(&info->slock, flags); info->xmit_head = (info->xmit_head + c) & (SERIAL_XMIT_SIZE - 1); @@ -1294,14 +1285,14 @@ static int mxser_put_char(struct tty_struct *tty, unsigned char ch) struct mxser_port *info = tty->driver_data; unsigned long flags; - if (!info->xmit_buf) + if (!info->port.xmit_buf) return 0; if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1) return 0; spin_lock_irqsave(&info->slock, flags); - info->xmit_buf[info->xmit_head++] = ch; + info->port.xmit_buf[info->xmit_head++] = ch; info->xmit_head &= SERIAL_XMIT_SIZE - 1; info->xmit_cnt++; spin_unlock_irqrestore(&info->slock, flags); @@ -1327,7 +1318,7 @@ static void mxser_flush_chars(struct tty_struct *tty) if (info->xmit_cnt <= 0 || tty->stopped || - !info->xmit_buf || + !info->port.xmit_buf || (tty->hw_stopped && (info->type != PORT_16550A) && (!info->board->chip_flag) @@ -1370,13 +1361,13 @@ static int mxser_get_serial_info(struct mxser_port *info, { struct serial_struct tmp = { .type = info->type, - .line = info->tty->index, + .line = info->port.tty->index, .port = info->ioaddr, .irq = info->board->irq, - .flags = info->flags, + .flags = info->port.flags, .baud_base = info->baud_base, - .close_delay = info->close_delay, - .closing_wait = info->closing_wait, + .close_delay = info->port.close_delay, + .closing_wait = info->port.closing_wait, .custom_divisor = info->custom_divisor, .hub6 = 0 }; @@ -1403,33 +1394,33 @@ static int mxser_set_serial_info(struct mxser_port *info, new_serial.port != info->ioaddr) return -EINVAL; - flags = info->flags & ASYNC_SPD_MASK; + flags = info->port.flags & ASYNC_SPD_MASK; if (!capable(CAP_SYS_ADMIN)) { if ((new_serial.baud_base != info->baud_base) || - (new_serial.close_delay != info->close_delay) || - ((new_serial.flags & ~ASYNC_USR_MASK) != (info->flags & ~ASYNC_USR_MASK))) + (new_serial.close_delay != info->port.close_delay) || + ((new_serial.flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK))) return -EPERM; - info->flags = ((info->flags & ~ASYNC_USR_MASK) | + info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) | (new_serial.flags & ASYNC_USR_MASK)); } else { /* * OK, past this point, all the error checking has been done. * At this point, we start making changes..... */ - info->flags = ((info->flags & ~ASYNC_FLAGS) | + info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) | (new_serial.flags & ASYNC_FLAGS)); - info->close_delay = new_serial.close_delay * HZ / 100; - info->closing_wait = new_serial.closing_wait * HZ / 100; - info->tty->low_latency = - (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; - info->tty->low_latency = 0; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST && + info->port.close_delay = new_serial.close_delay * HZ / 100; + info->port.closing_wait = new_serial.closing_wait * HZ / 100; + info->port.tty->low_latency = + (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; + info->port.tty->low_latency = 0; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST && (new_serial.baud_base != info->baud_base || new_serial.custom_divisor != info->custom_divisor)) { baud = new_serial.baud_base / new_serial.custom_divisor; - tty_encode_baud_rate(info->tty, baud, baud); + tty_encode_baud_rate(info->port.tty, baud, baud); } } @@ -1437,8 +1428,8 @@ static int mxser_set_serial_info(struct mxser_port *info, process_txrx_fifo(info); - if (info->flags & ASYNC_INITIALIZED) { - if (flags != (info->flags & ASYNC_SPD_MASK)) { + if (info->port.flags & ASYNC_INITIALIZED) { + if (flags != (info->port.flags & ASYNC_SPD_MASK)) { spin_lock_irqsave(&info->slock, sl_flags); mxser_change_speed(info, NULL); spin_unlock_irqrestore(&info->slock, sl_flags); @@ -1693,12 +1684,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) continue; } - if (!port->tty || !port->tty->termios) + if (!port->port.tty || !port->port.tty->termios) GMStatus[i].cflag = port->normal_termios.c_cflag; else GMStatus[i].cflag = - port->tty->termios->c_cflag; + port->port.tty->termios->c_cflag; status = inb(port->ioaddr + UART_MSR); if (status & 0x80 /*UART_MSR_DCD */ ) @@ -1755,14 +1746,14 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) mon_data_ext.modem_status[i] = port->mon_data.modem_status; mon_data_ext.baudrate[i] = - tty_get_baud_rate(port->tty); + tty_get_baud_rate(port->port.tty); - if (!port->tty || !port->tty->termios) { + if (!port->port.tty || !port->port.tty->termios) { cflag = port->normal_termios.c_cflag; iflag = port->normal_termios.c_iflag; } else { - cflag = port->tty->termios->c_cflag; - iflag = port->tty->termios->c_iflag; + cflag = port->port.tty->termios->c_cflag; + iflag = port->port.tty->termios->c_iflag; } mon_data_ext.databits[i] = cflag & CSIZE; @@ -1989,7 +1980,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, else info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFXENT; - if (info->tty->hw_stopped) + if (info->port.tty->hw_stopped) info->mon_data.hold_reason |= NPPI_NOTIFY_CTSHOLD; else info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD; @@ -2038,7 +2029,7 @@ static void mxser_stoprx(struct tty_struct *tty) } } - if (info->tty->termios->c_cflag & CRTSCTS) { + if (info->port.tty->termios->c_cflag & CRTSCTS) { info->MCR &= ~UART_MCR_RTS; outb(info->MCR, info->ioaddr + UART_MCR); } @@ -2075,7 +2066,7 @@ static void mxser_unthrottle(struct tty_struct *tty) } } - if (info->tty->termios->c_cflag & CRTSCTS) { + if (info->port.tty->termios->c_cflag & CRTSCTS) { info->MCR |= UART_MCR_RTS; outb(info->MCR, info->ioaddr + UART_MCR); } @@ -2106,7 +2097,7 @@ static void mxser_start(struct tty_struct *tty) unsigned long flags; spin_lock_irqsave(&info->slock, flags); - if (info->xmit_cnt && info->xmit_buf) { + if (info->xmit_cnt && info->port.xmit_buf) { outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER); info->IER |= UART_IER_THRI; outb(info->IER, info->ioaddr + UART_IER); @@ -2219,11 +2210,10 @@ static void mxser_hangup(struct tty_struct *tty) mxser_flush_buffer(tty); mxser_shutdown(info); - info->event = 0; - info->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - info->tty = NULL; - wake_up_interruptible(&info->open_wait); + info->port.count = 0; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + info->port.tty = NULL; + wake_up_interruptible(&info->port.open_wait); } /* @@ -2246,7 +2236,7 @@ static void mxser_rs_break(struct tty_struct *tty, int break_state) static void mxser_receive_chars(struct mxser_port *port, int *status) { - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; unsigned char ch, gdl; int ignored = 0; int cnt = 0; @@ -2302,7 +2292,7 @@ intr_old: flag = TTY_BREAK; port->icount.brk++; - if (port->flags & ASYNC_SAK) + if (port->port.flags & ASYNC_SAK) do_SAK(tty); } else if (*status & UART_LSR_PE) { flag = TTY_PARITY; @@ -2333,7 +2323,7 @@ intr_old: } while (*status & UART_LSR_DR); end_intr: - mxvar_log.rxcnt[port->tty->index] += cnt; + mxvar_log.rxcnt[port->port.tty->index] += cnt; port->mon_data.rxcnt += cnt; port->mon_data.up_rxcnt += cnt; @@ -2354,18 +2344,18 @@ static void mxser_transmit_chars(struct mxser_port *port) if (port->x_char) { outb(port->x_char, port->ioaddr + UART_TX); port->x_char = 0; - mxvar_log.txcnt[port->tty->index]++; + mxvar_log.txcnt[port->port.tty->index]++; port->mon_data.txcnt++; port->mon_data.up_txcnt++; port->icount.tx++; return; } - if (port->xmit_buf == NULL) + if (port->port.xmit_buf == NULL) return; - if ((port->xmit_cnt <= 0) || port->tty->stopped || - (port->tty->hw_stopped && + if ((port->xmit_cnt <= 0) || port->port.tty->stopped || + (port->port.tty->hw_stopped && (port->type != PORT_16550A) && (!port->board->chip_flag))) { port->IER &= ~UART_IER_THRI; @@ -2376,20 +2366,20 @@ static void mxser_transmit_chars(struct mxser_port *port) cnt = port->xmit_cnt; count = port->xmit_fifo_size; do { - outb(port->xmit_buf[port->xmit_tail++], + outb(port->port.xmit_buf[port->xmit_tail++], port->ioaddr + UART_TX); port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1); if (--port->xmit_cnt <= 0) break; } while (--count > 0); - mxvar_log.txcnt[port->tty->index] += (cnt - port->xmit_cnt); + mxvar_log.txcnt[port->port.tty->index] += (cnt - port->xmit_cnt); port->mon_data.txcnt += (cnt - port->xmit_cnt); port->mon_data.up_txcnt += (cnt - port->xmit_cnt); port->icount.tx += (cnt - port->xmit_cnt); if (port->xmit_cnt < WAKEUP_CHARS) - tty_wakeup(port->tty); + tty_wakeup(port->port.tty); if (port->xmit_cnt <= 0) { port->IER &= ~UART_IER_THRI; @@ -2440,9 +2430,9 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id) if (iir & UART_IIR_NO_INT) break; iir &= MOXA_MUST_IIR_MASK; - if (!port->tty || - (port->flags & ASYNC_CLOSING) || - !(port->flags & + if (!port->port.tty || + (port->port.flags & ASYNC_CLOSING) || + !(port->port.flags & ASYNC_INITIALIZED)) { status = inb(port->ioaddr + UART_LSR); outb(0x27, port->ioaddr + UART_FCR); @@ -2550,6 +2540,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, for (i = 0; i < brd->info->nports; i++) { info = &brd->ports[i]; + tty_port_init(&info->port); info->board = brd; info->stop_rx = 0; info->ldisc_stop_rx = 0; @@ -2558,16 +2549,15 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, if (brd->chip_flag != MOXA_OTHER_UART) mxser_enable_must_enchance_mode(info->ioaddr); - info->flags = ASYNC_SHARE_IRQ; + info->port.flags = ASYNC_SHARE_IRQ; info->type = brd->uart_type; process_txrx_fifo(info); info->custom_divisor = info->baud_base * 16; - info->close_delay = 5 * HZ / 10; - info->closing_wait = 30 * HZ; + info->port.close_delay = 5 * HZ / 10; + info->port.closing_wait = 30 * HZ; info->normal_termios = mxvar_sdriver->init_termios; - init_waitqueue_head(&info->open_wait); init_waitqueue_head(&info->delta_msr_wait); memset(&info->mon_data, 0, sizeof(struct mxser_mon)); info->err_shadow = 0; diff --git a/drivers/char/n_hdlc.c b/drivers/char/n_hdlc.c index a35bfd7ee80..ed4e03333ab 100644 --- a/drivers/char/n_hdlc.c +++ b/drivers/char/n_hdlc.c @@ -199,7 +199,7 @@ static void n_hdlc_tty_wakeup(struct tty_struct *tty); #define tty2n_hdlc(tty) ((struct n_hdlc *) ((tty)->disc_data)) #define n_hdlc2tty(n_hdlc) ((n_hdlc)->tty) -static struct tty_ldisc n_hdlc_ldisc = { +static struct tty_ldisc_ops n_hdlc_ldisc = { .owner = THIS_MODULE, .magic = TTY_LDISC_MAGIC, .name = "hdlc", @@ -342,8 +342,8 @@ static int n_hdlc_tty_open (struct tty_struct *tty) #endif /* Flush any pending characters in the driver and discipline. */ - if (tty->ldisc.flush_buffer) - tty->ldisc.flush_buffer(tty); + if (tty->ldisc.ops->flush_buffer) + tty->ldisc.ops->flush_buffer(tty); tty_driver_flush_buffer(tty); diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c index 90216906233..ae377aa473b 100644 --- a/drivers/char/n_r3964.c +++ b/drivers/char/n_r3964.c @@ -143,7 +143,7 @@ static unsigned int r3964_poll(struct tty_struct *tty, struct file *file, static void r3964_receive_buf(struct tty_struct *tty, const unsigned char *cp, char *fp, int count); -static struct tty_ldisc tty_ldisc_N_R3964 = { +static struct tty_ldisc_ops tty_ldisc_N_R3964 = { .owner = THIS_MODULE, .magic = TTY_LDISC_MAGIC, .name = "R3964", diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c index 8096389b0dc..708c2b1dbe5 100644 --- a/drivers/char/n_tty.c +++ b/drivers/char/n_tty.c @@ -1573,7 +1573,7 @@ static unsigned int normal_poll(struct tty_struct *tty, struct file *file, return mask; } -struct tty_ldisc tty_ldisc_N_TTY = { +struct tty_ldisc_ops tty_ldisc_N_TTY = { .magic = TTY_LDISC_MAGIC, .name = "n_tty", .open = n_tty_open, diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c index 197cd7a0c33..a22662b6a1a 100644 --- a/drivers/char/nvram.c +++ b/drivers/char/nvram.c @@ -444,7 +444,7 @@ nvram_init(void) /* First test whether the driver should init at all */ if (!CHECK_DRIVER_INIT()) - return -ENXIO; + return -ENODEV; ret = misc_register(&nvram_dev); if (ret) { diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index 59ca35156d8..e4a4fbd37d7 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -1439,7 +1439,7 @@ static long cmm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) DEBUGP(4, dev, "CMM_ABSENT flag set\n"); goto out; } - rc = EINVAL; + rc = -EINVAL; if (_IOC_TYPE(cmd) != CM_IOC_MAGIC) { DEBUGP(4, dev, "ioctype mismatch\n"); diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index 1dd0e992c83..b694d430f10 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -514,8 +514,8 @@ static void ldisc_receive_buf(struct tty_struct *tty, return; ld = tty_ldisc_ref(tty); if (ld) { - if (ld->receive_buf) - ld->receive_buf(tty, data, flags, count); + if (ld->ops->receive_buf) + ld->ops->receive_buf(tty, data, flags, count); tty_ldisc_deref(ld); } } @@ -3886,9 +3886,8 @@ static bool rx_get_frame(MGSLPC_INFO *info) framesize = 0; #if SYNCLINK_GENERIC_HDLC { - struct net_device_stats *stats = hdlc_stats(info->netdev); - stats->rx_errors++; - stats->rx_frame_errors++; + info->netdev->stats.rx_errors++; + info->netdev->stats.rx_frame_errors++; } #endif } else @@ -4144,7 +4143,6 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) { MGSLPC_INFO *info = dev_to_port(dev); - struct net_device_stats *stats = hdlc_stats(dev); unsigned long flags; if (debug_level >= DEBUG_LEVEL_INFO) @@ -4159,8 +4157,8 @@ static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) info->tx_put = info->tx_count = skb->len; /* update network statistics */ - stats->tx_packets++; - stats->tx_bytes += skb->len; + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; /* done with socket buffer, so free it */ dev_kfree_skb(skb); @@ -4376,14 +4374,13 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) static void hdlcdev_tx_timeout(struct net_device *dev) { MGSLPC_INFO *info = dev_to_port(dev); - struct net_device_stats *stats = hdlc_stats(dev); unsigned long flags; if (debug_level >= DEBUG_LEVEL_INFO) printk("hdlcdev_tx_timeout(%s)\n",dev->name); - stats->tx_errors++; - stats->tx_aborted_errors++; + dev->stats.tx_errors++; + dev->stats.tx_aborted_errors++; spin_lock_irqsave(&info->lock,flags); tx_stop(info); @@ -4416,27 +4413,26 @@ static void hdlcdev_rx(MGSLPC_INFO *info, char *buf, int size) { struct sk_buff *skb = dev_alloc_skb(size); struct net_device *dev = info->netdev; - struct net_device_stats *stats = hdlc_stats(dev); if (debug_level >= DEBUG_LEVEL_INFO) printk("hdlcdev_rx(%s)\n",dev->name); if (skb == NULL) { printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n", dev->name); - stats->rx_dropped++; + dev->stats.rx_dropped++; return; } - memcpy(skb_put(skb, size),buf,size); + memcpy(skb_put(skb, size), buf, size); - skb->protocol = hdlc_type_trans(skb, info->netdev); + skb->protocol = hdlc_type_trans(skb, dev); - stats->rx_packets++; - stats->rx_bytes += size; + dev->stats.rx_packets++; + dev->stats.rx_bytes += size; netif_rx(skb); - info->netdev->last_rx = jiffies; + dev->last_rx = jiffies; } /** diff --git a/drivers/char/pty.c b/drivers/char/pty.c index 0a05c038ae6..76b27932d22 100644 --- a/drivers/char/pty.c +++ b/drivers/char/pty.c @@ -111,7 +111,7 @@ static int pty_write(struct tty_struct * tty, const unsigned char *buf, int coun c = to->receive_room; if (c > count) c = count; - to->ldisc.receive_buf(to, buf, NULL, c); + to->ldisc.ops->receive_buf(to, buf, NULL, c); return c; } @@ -149,11 +149,11 @@ static int pty_chars_in_buffer(struct tty_struct *tty) int count; /* We should get the line discipline lock for "tty->link" */ - if (!to || !to->ldisc.chars_in_buffer) + if (!to || !to->ldisc.ops->chars_in_buffer) return 0; /* The ldisc must report 0 if no characters available to be read */ - count = to->ldisc.chars_in_buffer(to); + count = to->ldisc.ops->chars_in_buffer(to); if (tty->driver->subtype == PTY_TYPE_SLAVE) return count; @@ -186,8 +186,8 @@ static void pty_flush_buffer(struct tty_struct *tty) if (!to) return; - if (to->ldisc.flush_buffer) - to->ldisc.flush_buffer(to); + if (to->ldisc.ops->flush_buffer) + to->ldisc.ops->flush_buffer(to); if (to->packet) { spin_lock_irqsave(&tty->ctrl_lock, flags); diff --git a/drivers/char/rio/cirrus.h b/drivers/char/rio/cirrus.h index a03a538a3ef..5ab51679caa 100644 --- a/drivers/char/rio/cirrus.h +++ b/drivers/char/rio/cirrus.h @@ -35,9 +35,6 @@ ***************************************************************************/ #ifndef _cirrus_h -#ifndef lint -/* static char* _cirrus_h_sccs = "@(#)cirrus.h 1.16"; */ -#endif #define _cirrus_h 1 /* Bit fields for particular registers shared with driver */ diff --git a/drivers/char/rio/cmdblk.h b/drivers/char/rio/cmdblk.h index c46b2fdb662..9ed4f861675 100644 --- a/drivers/char/rio/cmdblk.h +++ b/drivers/char/rio/cmdblk.h @@ -33,12 +33,6 @@ #ifndef __rio_cmdblk_h__ #define __rio_cmdblk_h__ -#ifdef SCCS_LABELS -#ifndef lint -static char *_cmdblk_h_sccs_ = "@(#)cmdblk.h 1.2"; -#endif -#endif - /* ** the structure of a command block, used to queue commands destined for ** a rup. diff --git a/drivers/char/rio/cmdpkt.h b/drivers/char/rio/cmdpkt.h index 357ae572243..c1e7a279807 100644 --- a/drivers/char/rio/cmdpkt.h +++ b/drivers/char/rio/cmdpkt.h @@ -32,12 +32,6 @@ #ifndef __rio_cmdpkt_h__ #define __rio_cmdpkt_h__ -#ifdef SCCS_LABELS -#ifndef lint -static char *_cmdpkt_h_sccs_ = "@(#)cmdpkt.h 1.2"; -#endif -#endif - /* ** overlays for the data area of a packet. Used in both directions ** (to build a packet to send, and to interpret a packet that arrives) diff --git a/drivers/char/rio/daemon.h b/drivers/char/rio/daemon.h index 6e63f8b2c47..4af90323fd0 100644 --- a/drivers/char/rio/daemon.h +++ b/drivers/char/rio/daemon.h @@ -33,12 +33,6 @@ #ifndef __rio_daemon_h__ #define __rio_daemon_h__ -#ifdef SCCS_LABELS -#ifndef lint -static char *_daemon_h_sccs_ = "@(#)daemon.h 1.3"; -#endif -#endif - /* ** structures used on /dev/rio diff --git a/drivers/char/rio/errors.h b/drivers/char/rio/errors.h index 1d0d8914433..bdb05234090 100644 --- a/drivers/char/rio/errors.h +++ b/drivers/char/rio/errors.h @@ -33,12 +33,6 @@ #ifndef __rio_errors_h__ #define __rio_errors_h__ -#ifdef SCCS_LABELS -#ifndef lint -static char *_errors_h_sccs_ = "@(#)errors.h 1.2"; -#endif -#endif - /* ** error codes */ diff --git a/drivers/char/rio/func.h b/drivers/char/rio/func.h index 9e7283bd81a..078d44f85e4 100644 --- a/drivers/char/rio/func.h +++ b/drivers/char/rio/func.h @@ -35,12 +35,6 @@ #include <linux/kdev_t.h> -#ifdef SCCS_LABELS -#ifndef lint -static char *_func_h_sccs_ = "@(#)func.h 1.3"; -#endif -#endif - /* rioboot.c */ int RIOBootCodeRTA(struct rio_info *, struct DownLoad *); int RIOBootCodeHOST(struct rio_info *, struct DownLoad *); diff --git a/drivers/char/rio/map.h b/drivers/char/rio/map.h index bdbcd09c8b8..8366978578c 100644 --- a/drivers/char/rio/map.h +++ b/drivers/char/rio/map.h @@ -33,10 +33,6 @@ #ifndef __rio_map_h__ #define __rio_map_h__ -#ifdef SCCS_LABELS -static char *_map_h_sccs_ = "@(#)map.h 1.2"; -#endif - /* ** mapping structure passed to and from the config.rio program to ** determine the current topology of the world diff --git a/drivers/char/rio/param.h b/drivers/char/rio/param.h index 675c200b245..7e9b6283e8a 100644 --- a/drivers/char/rio/param.h +++ b/drivers/char/rio/param.h @@ -33,11 +33,6 @@ #ifndef __rio_param_h__ #define __rio_param_h__ -#ifdef SCCS_LABELS -static char *_param_h_sccs_ = "@(#)param.h 1.2"; -#endif - - /* ** the param command block, as used in OPEN and PARAM calls. */ diff --git a/drivers/char/rio/parmmap.h b/drivers/char/rio/parmmap.h index 9764ef85c5a..acc8fa439df 100644 --- a/drivers/char/rio/parmmap.h +++ b/drivers/char/rio/parmmap.h @@ -37,13 +37,6 @@ #ifndef _parmap_h #define _parmap_h - -#ifdef SCCS_LABELS -#ifndef lint -/* static char *_rio_parmmap_h_sccs = "@(#)parmmap.h 1.4"; */ -#endif -#endif - typedef struct PARM_MAP PARM_MAP; struct PARM_MAP { diff --git a/drivers/char/rio/pci.h b/drivers/char/rio/pci.h index 1eba9118079..6032f913595 100644 --- a/drivers/char/rio/pci.h +++ b/drivers/char/rio/pci.h @@ -33,10 +33,6 @@ #ifndef __rio_pci_h__ #define __rio_pci_h__ -#ifdef SCCS_LABELS -static char *_pci_h_sccs_ = "@(#)pci.h 1.2"; -#endif - /* ** PCI stuff */ diff --git a/drivers/char/rio/protsts.h b/drivers/char/rio/protsts.h index 69fc4bc3415..8ab79401d3e 100644 --- a/drivers/char/rio/protsts.h +++ b/drivers/char/rio/protsts.h @@ -37,13 +37,6 @@ #ifndef _protsts_h #define _protsts_h 1 - -#ifdef SCCS_LABELS -#ifndef lint -/* static char *_rio_protsts_h_sccs = "@(#)protsts.h 1.4"; */ -#endif -#endif - /************************************************* * ACK bit. Last Packet received OK. Set by * rxpkt to indicate that the Packet has been diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c index 412777cd1e6..0cdfee15291 100644 --- a/drivers/char/rio/rio_linux.c +++ b/drivers/char/rio/rio_linux.c @@ -25,11 +25,6 @@ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, * USA. * - * Revision history: - * $Log: rio.c,v $ - * Revision 1.1 1999/07/11 10:13:54 wolff - * Initial revision - * * */ #include <linux/module.h> @@ -436,7 +431,7 @@ static void rio_disable_tx_interrupts(void *ptr) { func_enter(); - /* port->gs.flags &= ~GS_TX_INTEN; */ + /* port->gs.port.flags &= ~GS_TX_INTEN; */ func_exit(); } @@ -460,7 +455,7 @@ static void rio_enable_tx_interrupts(void *ptr) * In general we cannot count on "tx empty" interrupts, although * the interrupt routine seems to be able to tell the difference. */ - PortP->gs.flags &= ~GS_TX_INTEN; + PortP->gs.port.flags &= ~GS_TX_INTEN; func_exit(); } @@ -515,7 +510,7 @@ static void rio_shutdown_port(void *ptr) func_enter(); PortP = (struct Port *) ptr; - PortP->gs.tty = NULL; + PortP->gs.port.tty = NULL; func_exit(); } @@ -534,7 +529,7 @@ static void rio_hungup(void *ptr) func_enter(); PortP = (struct Port *) ptr; - PortP->gs.tty = NULL; + PortP->gs.port.tty = NULL; func_exit(); } @@ -554,12 +549,12 @@ static void rio_close(void *ptr) riotclose(ptr); - if (PortP->gs.count) { - printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.count); - PortP->gs.count = 0; + if (PortP->gs.port.count) { + printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.port.count); + PortP->gs.port.count = 0; } - PortP->gs.tty = NULL; + PortP->gs.port.tty = NULL; func_exit(); } @@ -854,8 +849,8 @@ static int rio_init_datastructures(void) /* * Initializing wait queue */ - init_waitqueue_head(&port->gs.open_wait); - init_waitqueue_head(&port->gs.close_wait); + init_waitqueue_head(&port->gs.port.open_wait); + init_waitqueue_head(&port->gs.port.close_wait); } #else /* We could postpone initializing them to when they are configured. */ diff --git a/drivers/char/rio/rioboard.h b/drivers/char/rio/rioboard.h index 822c071a693..252230043c8 100644 --- a/drivers/char/rio/rioboard.h +++ b/drivers/char/rio/rioboard.h @@ -29,12 +29,6 @@ /* */ /************************************************************************/ -/* History... - -1.0.0 26/04/99 NPV Creation. - -*/ - #ifndef _rioboard_h /* If RIOBOARD.H not already defined */ #define _rioboard_h 1 diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c index 7b96e081488..01f2654d5a2 100644 --- a/drivers/char/rio/riocmd.c +++ b/drivers/char/rio/riocmd.c @@ -30,9 +30,6 @@ ** ** ----------------------------------------------------------------------------- */ -#ifdef SCCS_LABELS -static char *_riocmd_c_sccs_ = "@(#)riocmd.c 1.2"; -#endif #include <linux/module.h> #include <linux/slab.h> @@ -487,12 +484,12 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc ** If the device is a modem, then check the modem ** carrier. */ - if (PortP->gs.tty == NULL) + if (PortP->gs.port.tty == NULL) break; - if (PortP->gs.tty->termios == NULL) + if (PortP->gs.port.tty->termios == NULL) break; - if (!(PortP->gs.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) { + if (!(PortP->gs.port.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) { rio_dprintk(RIO_DEBUG_CMD, "Is there a Carrier?\n"); /* @@ -509,7 +506,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc ** wakeup anyone in WOPEN */ if (PortP->State & (PORT_ISOPEN | RIO_WOPEN)) - wake_up_interruptible(&PortP->gs.open_wait); + wake_up_interruptible(&PortP->gs.port.open_wait); } } else { /* @@ -517,7 +514,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc */ if (PortP->State & RIO_CARR_ON) { if (PortP->State & (PORT_ISOPEN | RIO_WOPEN | RIO_MOPEN)) - tty_hangup(PortP->gs.tty); + tty_hangup(PortP->gs.port.tty); PortP->State &= ~RIO_CARR_ON; rio_dprintk(RIO_DEBUG_CMD, "Carrirer just went down\n"); } diff --git a/drivers/char/rio/rioctrl.c b/drivers/char/rio/rioctrl.c index d65ceb9a434..eecee0f576d 100644 --- a/drivers/char/rio/rioctrl.c +++ b/drivers/char/rio/rioctrl.c @@ -29,10 +29,6 @@ ** ** ----------------------------------------------------------------------------- */ -#ifdef SCCS_LABELS -static char *_rioctrl_c_sccs_ = "@(#)rioctrl.c 1.3"; -#endif - #include <linux/module.h> #include <linux/slab.h> diff --git a/drivers/char/rio/riodrvr.h b/drivers/char/rio/riodrvr.h index 3cffe275f21..0907e711b35 100644 --- a/drivers/char/rio/riodrvr.h +++ b/drivers/char/rio/riodrvr.h @@ -35,10 +35,6 @@ #include <asm/param.h> /* for HZ */ -#ifdef SCCS_LABELS -static char *_riodrvr_h_sccs_ = "@(#)riodrvr.h 1.3"; -#endif - #define MEMDUMP_SIZE 32 #define MOD_DISABLE (RIO_NOREAD|RIO_NOWRITE|RIO_NOXPRINT) diff --git a/drivers/char/rio/rioinfo.h b/drivers/char/rio/rioinfo.h index 8de7966e603..42ff1e79d96 100644 --- a/drivers/char/rio/rioinfo.h +++ b/drivers/char/rio/rioinfo.h @@ -33,10 +33,6 @@ #ifndef __rioinfo_h #define __rioinfo_h -#ifdef SCCS_LABELS -static char *_rioinfo_h_sccs_ = "@(#)rioinfo.h 1.2"; -#endif - /* ** Host card data structure */ diff --git a/drivers/char/rio/rioinit.c b/drivers/char/rio/rioinit.c index add1718295e..be0ba401966 100644 --- a/drivers/char/rio/rioinit.c +++ b/drivers/char/rio/rioinit.c @@ -29,9 +29,6 @@ ** ** ----------------------------------------------------------------------------- */ -#ifdef SCCS_LABELS -static char *_rioinit_c_sccs_ = "@(#)rioinit.c 1.3"; -#endif #include <linux/module.h> #include <linux/slab.h> diff --git a/drivers/char/rio/riointr.c b/drivers/char/rio/riointr.c index ea21686c69a..71f87600907 100644 --- a/drivers/char/rio/riointr.c +++ b/drivers/char/rio/riointr.c @@ -29,10 +29,6 @@ ** ** ----------------------------------------------------------------------------- */ -#ifdef SCCS_LABELS -static char *_riointr_c_sccs_ = "@(#)riointr.c 1.2"; -#endif - #include <linux/module.h> #include <linux/slab.h> @@ -106,7 +102,7 @@ void RIOTxEnable(char *en) PortP = (struct Port *) en; p = (struct rio_info *) PortP->p; - tty = PortP->gs.tty; + tty = PortP->gs.port.tty; rio_dprintk(RIO_DEBUG_INTR, "tx port %d: %d chars queued.\n", PortP->PortNum, PortP->gs.xmit_cnt); @@ -162,7 +158,7 @@ void RIOTxEnable(char *en) rio_spin_unlock_irqrestore(&PortP->portSem, flags); if (PortP->gs.xmit_cnt <= (PortP->gs.wakeup_chars + 2 * PKT_MAX_DATA_LEN)) - tty_wakeup(PortP->gs.tty); + tty_wakeup(PortP->gs.port.tty); } @@ -245,7 +241,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP) ** find corresponding tty structure. The process of mapping ** the ports puts these here. */ - ttyP = PortP->gs.tty; + ttyP = PortP->gs.port.tty; /* ** Lock the port before we begin working on it. @@ -339,7 +335,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP) ** find corresponding tty structure. The process of mapping ** the ports puts these here. */ - ttyP = PortP->gs.tty; + ttyP = PortP->gs.port.tty; /* If ttyP is NULL, the port is getting closed. Forget about it. */ if (!ttyP) { rio_dprintk(RIO_DEBUG_INTR, "no tty, so skipping.\n"); @@ -546,7 +542,7 @@ static void RIOReceive(struct rio_info *p, struct Port *PortP) intCount++; - TtyP = PortP->gs.tty; + TtyP = PortP->gs.port.tty; if (!TtyP) { rio_dprintk(RIO_DEBUG_INTR, "RIOReceive: tty is null. \n"); return; diff --git a/drivers/char/rio/rioparam.c b/drivers/char/rio/rioparam.c index 4810b845cc2..d687c17be15 100644 --- a/drivers/char/rio/rioparam.c +++ b/drivers/char/rio/rioparam.c @@ -30,10 +30,6 @@ ** ----------------------------------------------------------------------------- */ -#ifdef SCCS_LABELS -static char *_rioparam_c_sccs_ = "@(#)rioparam.c 1.3"; -#endif - #include <linux/module.h> #include <linux/slab.h> #include <linux/errno.h> @@ -164,7 +160,7 @@ int RIOParam(struct Port *PortP, int cmd, int Modem, int SleepFlag) func_enter(); - TtyP = PortP->gs.tty; + TtyP = PortP->gs.port.tty; rio_dprintk(RIO_DEBUG_PARAM, "RIOParam: Port:%d cmd:%d Modem:%d SleepFlag:%d Mapped: %d, tty=%p\n", PortP->PortNum, cmd, Modem, SleepFlag, PortP->Mapped, TtyP); diff --git a/drivers/char/rio/rioroute.c b/drivers/char/rio/rioroute.c index 7a9df7dcf9a..706c2a25f7a 100644 --- a/drivers/char/rio/rioroute.c +++ b/drivers/char/rio/rioroute.c @@ -29,9 +29,6 @@ ** ** ----------------------------------------------------------------------------- */ -#ifdef SCCS_LABELS -static char *_rioroute_c_sccs_ = "@(#)rioroute.c 1.3"; -#endif #include <linux/module.h> #include <linux/slab.h> diff --git a/drivers/char/rio/riospace.h b/drivers/char/rio/riospace.h index 534f1f5b9f5..ffb31d4332b 100644 --- a/drivers/char/rio/riospace.h +++ b/drivers/char/rio/riospace.h @@ -33,10 +33,6 @@ #ifndef __rio_riospace_h__ #define __rio_riospace_h__ -#ifdef SCCS_LABELS -static char *_riospace_h_sccs_ = "@(#)riospace.h 1.2"; -#endif - #define RIO_LOCATOR_LEN 16 #define MAX_RIO_BOARDS 4 diff --git a/drivers/char/rio/riotable.c b/drivers/char/rio/riotable.c index 2b24488e95f..3d15802dc0f 100644 --- a/drivers/char/rio/riotable.c +++ b/drivers/char/rio/riotable.c @@ -29,9 +29,6 @@ ** ** ----------------------------------------------------------------------------- */ -#ifdef SCCS_LABELS -static char *_riotable_c_sccs_ = "@(#)riotable.c 1.2"; -#endif #include <linux/module.h> #include <linux/slab.h> diff --git a/drivers/char/rio/riotty.c b/drivers/char/rio/riotty.c index c99354843be..2fb49e89b32 100644 --- a/drivers/char/rio/riotty.c +++ b/drivers/char/rio/riotty.c @@ -29,10 +29,6 @@ ** ** ----------------------------------------------------------------------------- */ -#ifdef SCCS_LABELS -static char *_riotty_c_sccs_ = "@(#)riotty.c 1.3"; -#endif - #define __EXPLICIT_DEF_H__ @@ -144,14 +140,14 @@ int riotopen(struct tty_struct *tty, struct file *filp) tty->driver_data = PortP; - PortP->gs.tty = tty; - PortP->gs.count++; + PortP->gs.port.tty = tty; + PortP->gs.port.count++; rio_dprintk(RIO_DEBUG_TTY, "%d bytes in tx buffer\n", PortP->gs.xmit_cnt); retval = gs_init_port(&PortP->gs); if (retval) { - PortP->gs.count--; + PortP->gs.port.count--; return -ENXIO; } /* @@ -297,7 +293,7 @@ int riotopen(struct tty_struct *tty, struct file *filp) ** insert test for carrier here. -- ??? ** I already see that test here. What's the deal? -- REW */ - if ((PortP->gs.tty->termios->c_cflag & CLOCAL) || + if ((PortP->gs.port.tty->termios->c_cflag & CLOCAL) || (PortP->ModemState & RIOC_MSVR1_CD)) { rio_dprintk(RIO_DEBUG_TTY, "open(%d) Modem carr on\n", SysPort); /* @@ -305,16 +301,16 @@ int riotopen(struct tty_struct *tty, struct file *filp) wakeup((caddr_t) &tp->tm.c_canq); */ PortP->State |= RIO_CARR_ON; - wake_up_interruptible(&PortP->gs.open_wait); + wake_up_interruptible(&PortP->gs.port.open_wait); } else { /* no carrier - wait for DCD */ /* - while (!(PortP->gs.tty->termios->c_state & CARR_ON) && + while (!(PortP->gs.port.tty->termios->c_state & CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted ) */ while (!(PortP->State & RIO_CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted) { rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr on\n", SysPort); /* - PortP->gs.tty->termios->c_state |= WOPEN; + PortP->gs.port.tty->termios->c_state |= WOPEN; */ PortP->State |= RIO_WOPEN; rio_spin_unlock_irqrestore(&PortP->portSem, flags); @@ -384,7 +380,7 @@ int riotclose(void *ptr) /* PortP = p->RIOPortp[SysPort]; */ rio_dprintk(RIO_DEBUG_TTY, "Port is at address %p\n", PortP); /* tp = PortP->TtyP; *//* Get tty */ - tty = PortP->gs.tty; + tty = PortP->gs.port.tty; rio_dprintk(RIO_DEBUG_TTY, "TTY is at address %p\n", tty); if (PortP->gs.closing_wait) diff --git a/drivers/char/rio/route.h b/drivers/char/rio/route.h index 769744e575a..20ed73f3fd7 100644 --- a/drivers/char/rio/route.h +++ b/drivers/char/rio/route.h @@ -37,12 +37,6 @@ #ifndef _route_h #define _route_h -#ifdef SCCS_LABELS -#ifndef lint -/* static char *_rio_route_h_sccs = "@(#)route.h 1.3"; */ -#endif -#endif - #define MAX_LINKS 4 #define MAX_NODES 17 /* Maximum nodes in a subnet */ #define NODE_BYTES ((MAX_NODES / 8) + 1) /* Number of bytes needed for diff --git a/drivers/char/rio/unixrup.h b/drivers/char/rio/unixrup.h index 46bd532f774..7abf0cba0f2 100644 --- a/drivers/char/rio/unixrup.h +++ b/drivers/char/rio/unixrup.h @@ -33,10 +33,6 @@ #ifndef __rio_unixrup_h__ #define __rio_unixrup_h__ -#ifdef SCCS_LABELS -static char *_unixrup_h_sccs_ = "@(#)unixrup.h 1.2"; -#endif - /* ** UnixRup data structure. This contains pointers to actual RUPs on the ** host card, and all the command/boot control stuff. diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c index f073c710ab8..724b2b20f4b 100644 --- a/drivers/char/riscom8.c +++ b/drivers/char/riscom8.c @@ -322,7 +322,7 @@ static struct riscom_port *rc_get_port(struct riscom_board const *bp, channel = rc_in(bp, CD180_GICR) >> GICR_CHAN_OFF; if (channel < CD180_NCH) { port = &rc_port[board_No(bp) * RC_NPORT + channel]; - if (port->flags & ASYNC_INITIALIZED) + if (port->port.flags & ASYNC_INITIALIZED) return port; } printk(KERN_ERR "rc%d: %s interrupt from invalid port %d\n", @@ -341,7 +341,7 @@ static void rc_receive_exc(struct riscom_board const *bp) if (port == NULL) return; - tty = port->tty; + tty = port->port.tty; #ifdef RC_REPORT_OVERRUN status = rc_in(bp, CD180_RCSR); @@ -364,7 +364,7 @@ static void rc_receive_exc(struct riscom_board const *bp) printk(KERN_INFO "rc%d: port %d: Handling break...\n", board_No(bp), port_No(port)); flag = TTY_BREAK; - if (port->flags & ASYNC_SAK) + if (port->port.flags & ASYNC_SAK) do_SAK(tty); } else if (status & RCSR_PE) @@ -392,7 +392,7 @@ static void rc_receive(struct riscom_board const *bp) if (port == NULL) return; - tty = port->tty; + tty = port->port.tty; count = rc_in(bp, CD180_RDCR); @@ -422,7 +422,7 @@ static void rc_transmit(struct riscom_board const *bp) if (port == NULL) return; - tty = port->tty; + tty = port->port.tty; if (port->IER & IER_TXEMPTY) { /* FIFO drained */ @@ -467,7 +467,7 @@ static void rc_transmit(struct riscom_board const *bp) count = CD180_NFIFO; do { - rc_out(bp, CD180_TDR, port->xmit_buf[port->xmit_tail++]); + rc_out(bp, CD180_TDR, port->port.xmit_buf[port->xmit_tail++]); port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1); if (--port->xmit_cnt <= 0) break; @@ -492,12 +492,12 @@ static void rc_check_modem(struct riscom_board const *bp) if (port == NULL) return; - tty = port->tty; + tty = port->port.tty; mcr = rc_in(bp, CD180_MCR); if (mcr & MCR_CDCHG) { if (rc_in(bp, CD180_MSVR) & MSVR_CD) - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); else tty_hangup(tty); } @@ -632,15 +632,12 @@ static void rc_shutdown_board(struct riscom_board *bp) */ static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port) { - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; unsigned long baud; long tmp; unsigned char cor1 = 0, cor3 = 0; unsigned char mcor1 = 0, mcor2 = 0; - if (tty == NULL || tty->termios == NULL) - return; - port->IER = 0; port->COR2 = 0; port->MSVR = MSVR_RTS; @@ -786,39 +783,30 @@ static int rc_setup_port(struct riscom_board *bp, struct riscom_port *port) { unsigned long flags; - if (port->flags & ASYNC_INITIALIZED) + if (port->port.flags & ASYNC_INITIALIZED) return 0; - if (!port->xmit_buf) { - /* We may sleep in get_zeroed_page() */ - unsigned long tmp = get_zeroed_page(GFP_KERNEL); - if (tmp == 0) - return -ENOMEM; - if (port->xmit_buf) - free_page(tmp); - else - port->xmit_buf = (unsigned char *) tmp; - } + if (tty_port_alloc_xmit_buf(&port->port) < 0) + return -ENOMEM; + spin_lock_irqsave(&riscom_lock, flags); - if (port->tty) - clear_bit(TTY_IO_ERROR, &port->tty->flags); - if (port->count == 1) + clear_bit(TTY_IO_ERROR, &port->port.tty->flags); + if (port->port.count == 1) bp->count++; port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; rc_change_speed(bp, port); - port->flags |= ASYNC_INITIALIZED; + port->port.flags |= ASYNC_INITIALIZED; spin_unlock_irqrestore(&riscom_lock, flags); return 0; } /* Must be called with interrupts disabled */ -static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port) +static void rc_shutdown_port(struct tty_struct *tty, + struct riscom_board *bp, struct riscom_port *port) { - struct tty_struct *tty; - - if (!(port->flags & ASYNC_INITIALIZED)) + if (!(port->port.flags & ASYNC_INITIALIZED)) return; #ifdef RC_REPORT_OVERRUN @@ -836,14 +824,8 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port) printk("].\n"); } #endif - if (port->xmit_buf) { - free_page((unsigned long) port->xmit_buf); - port->xmit_buf = NULL; - } - - tty = port->tty; - - if (tty == NULL || C_HUPCL(tty)) { + tty_port_free_xmit_buf(&port->port); + if (C_HUPCL(tty)) { /* Drop DTR */ bp->DTR |= (1u << port_No(port)); rc_out(bp, RC_DTR, bp->DTR); @@ -858,9 +840,8 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port) port->IER = 0; rc_out(bp, CD180_IER, port->IER); - if (tty) - set_bit(TTY_IO_ERROR, &tty->flags); - port->flags &= ~ASYNC_INITIALIZED; + set_bit(TTY_IO_ERROR, &tty->flags); + port->port.flags &= ~ASYNC_INITIALIZED; if (--bp->count < 0) { printk(KERN_INFO "rc%d: rc_shutdown_port: " @@ -890,9 +871,9 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, * If the device is in the middle of being closed, then block * until it's done, and then try again. */ - if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&port->close_wait); - if (port->flags & ASYNC_HUP_NOTIFY) + if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&port->port.close_wait); + if (port->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; else return -ERESTARTSYS; @@ -904,7 +885,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, */ if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) { - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -919,16 +900,16 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&port->open_wait, &wait); + add_wait_queue(&port->port.open_wait, &wait); spin_lock_irqsave(&riscom_lock, flags); if (!tty_hung_up_p(filp)) - port->count--; + port->port.count--; spin_unlock_irqrestore(&riscom_lock, flags); - port->blocked_open++; + port->port.blocked_open++; while (1) { spin_lock_irqsave(&riscom_lock, flags); @@ -942,14 +923,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, set_current_state(TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || - !(port->flags & ASYNC_INITIALIZED)) { - if (port->flags & ASYNC_HUP_NOTIFY) + !(port->port.flags & ASYNC_INITIALIZED)) { + if (port->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; break; } - if (!(port->flags & ASYNC_CLOSING) && + if (!(port->port.flags & ASYNC_CLOSING) && (do_clocal || CD)) break; if (signal_pending(current)) { @@ -959,14 +940,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, schedule(); } __set_current_state(TASK_RUNNING); - remove_wait_queue(&port->open_wait, &wait); + remove_wait_queue(&port->port.open_wait, &wait); if (!tty_hung_up_p(filp)) - port->count++; - port->blocked_open--; + port->port.count++; + port->port.blocked_open--; if (retval) return retval; - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -990,9 +971,9 @@ static int rc_open(struct tty_struct *tty, struct file *filp) if (error) return error; - port->count++; + port->port.count++; tty->driver_data = port; - port->tty = tty; + port->port.tty = tty; error = rc_setup_port(bp, port); if (error == 0) @@ -1031,28 +1012,28 @@ static void rc_close(struct tty_struct *tty, struct file *filp) goto out; bp = port_Board(port); - if ((tty->count == 1) && (port->count != 1)) { + if ((tty->count == 1) && (port->port.count != 1)) { printk(KERN_INFO "rc%d: rc_close: bad port count;" " tty->count is 1, port count is %d\n", - board_No(bp), port->count); - port->count = 1; + board_No(bp), port->port.count); + port->port.count = 1; } - if (--port->count < 0) { + if (--port->port.count < 0) { printk(KERN_INFO "rc%d: rc_close: bad port count " "for tty%d: %d\n", - board_No(bp), port_No(port), port->count); - port->count = 0; + board_No(bp), port_No(port), port->port.count); + port->port.count = 0; } - if (port->count) + if (port->port.count) goto out; - port->flags |= ASYNC_CLOSING; + port->port.flags |= ASYNC_CLOSING; /* * Now we wait for the transmit buffer to clear; and we notify * the line discipline to only process XON/XOFF characters. */ tty->closing = 1; - if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, port->closing_wait); + if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) + tty_wait_until_sent(tty, port->port.closing_wait); /* * At this point we stop accepting input. To do this, we * disable the receive line status interrupts, and tell the @@ -1060,7 +1041,7 @@ static void rc_close(struct tty_struct *tty, struct file *filp) * line status register. */ port->IER &= ~IER_RXD; - if (port->flags & ASYNC_INITIALIZED) { + if (port->port.flags & ASYNC_INITIALIZED) { port->IER &= ~IER_TXRDY; port->IER |= IER_TXEMPTY; rc_out(bp, CD180_CAR, port_No(port)); @@ -1077,19 +1058,19 @@ static void rc_close(struct tty_struct *tty, struct file *filp) break; } } - rc_shutdown_port(bp, port); + rc_shutdown_port(tty, bp, port); rc_flush_buffer(tty); tty_ldisc_flush(tty); tty->closing = 0; - port->tty = NULL; - if (port->blocked_open) { - if (port->close_delay) - msleep_interruptible(jiffies_to_msecs(port->close_delay)); - wake_up_interruptible(&port->open_wait); + port->port.tty = NULL; + if (port->port.blocked_open) { + if (port->port.close_delay) + msleep_interruptible(jiffies_to_msecs(port->port.close_delay)); + wake_up_interruptible(&port->port.open_wait); } - port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&port->close_wait); + port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + wake_up_interruptible(&port->port.close_wait); out: spin_unlock_irqrestore(&riscom_lock, flags); @@ -1108,9 +1089,6 @@ static int rc_write(struct tty_struct *tty, bp = port_Board(port); - if (!tty || !port->xmit_buf) - return 0; - while (1) { spin_lock_irqsave(&riscom_lock, flags); @@ -1119,7 +1097,7 @@ static int rc_write(struct tty_struct *tty, if (c <= 0) break; /* lock continues to be held */ - memcpy(port->xmit_buf + port->xmit_head, buf, c); + memcpy(port->port.xmit_buf + port->xmit_head, buf, c); port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1); port->xmit_cnt += c; @@ -1151,15 +1129,12 @@ static int rc_put_char(struct tty_struct *tty, unsigned char ch) if (rc_paranoia_check(port, tty->name, "rc_put_char")) return 0; - if (!tty || !port->xmit_buf) - return 0; - spin_lock_irqsave(&riscom_lock, flags); if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) goto out; - port->xmit_buf[port->xmit_head++] = ch; + port->port.xmit_buf[port->xmit_head++] = ch; port->xmit_head &= SERIAL_XMIT_SIZE - 1; port->xmit_cnt++; ret = 1; @@ -1177,8 +1152,7 @@ static void rc_flush_chars(struct tty_struct *tty) if (rc_paranoia_check(port, tty->name, "rc_flush_chars")) return; - if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || - !port->xmit_buf) + if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped) return; spin_lock_irqsave(&riscom_lock, flags); @@ -1317,22 +1291,22 @@ static int rc_set_serial_info(struct riscom_port *port, return -EINVAL; #endif - change_speed = ((port->flags & ASYNC_SPD_MASK) != + change_speed = ((port->port.flags & ASYNC_SPD_MASK) != (tmp.flags & ASYNC_SPD_MASK)); if (!capable(CAP_SYS_ADMIN)) { - if ((tmp.close_delay != port->close_delay) || - (tmp.closing_wait != port->closing_wait) || + if ((tmp.close_delay != port->port.close_delay) || + (tmp.closing_wait != port->port.closing_wait) || ((tmp.flags & ~ASYNC_USR_MASK) != - (port->flags & ~ASYNC_USR_MASK))) + (port->port.flags & ~ASYNC_USR_MASK))) return -EPERM; - port->flags = ((port->flags & ~ASYNC_USR_MASK) | + port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) | (tmp.flags & ASYNC_USR_MASK)); } else { - port->flags = ((port->flags & ~ASYNC_FLAGS) | + port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) | (tmp.flags & ASYNC_FLAGS)); - port->close_delay = tmp.close_delay; - port->closing_wait = tmp.closing_wait; + port->port.close_delay = tmp.close_delay; + port->port.closing_wait = tmp.closing_wait; } if (change_speed) { unsigned long flags; @@ -1355,10 +1329,10 @@ static int rc_get_serial_info(struct riscom_port *port, tmp.line = port - rc_port; tmp.port = bp->base; tmp.irq = bp->irq; - tmp.flags = port->flags; + tmp.flags = port->port.flags; tmp.baud_base = (RC_OSCFREQ + CD180_TPC/2) / CD180_TPC; - tmp.close_delay = port->close_delay * HZ/100; - tmp.closing_wait = port->closing_wait * HZ/100; + tmp.close_delay = port->port.close_delay * HZ/100; + tmp.closing_wait = port->port.closing_wait * HZ/100; tmp.xmit_fifo_size = CD180_NFIFO; return copy_to_user(retinfo, &tmp, sizeof(tmp)) ? -EFAULT : 0; } @@ -1480,7 +1454,7 @@ static void rc_start(struct tty_struct *tty) spin_lock_irqsave(&riscom_lock, flags); - if (port->xmit_cnt && port->xmit_buf && !(port->IER & IER_TXRDY)) { + if (port->xmit_cnt && port->port.xmit_buf && !(port->IER & IER_TXRDY)) { port->IER |= IER_TXRDY; rc_out(bp, CD180_CAR, port_No(port)); rc_out(bp, CD180_IER, port->IER); @@ -1498,11 +1472,11 @@ static void rc_hangup(struct tty_struct *tty) bp = port_Board(port); - rc_shutdown_port(bp, port); - port->count = 0; - port->flags &= ~ASYNC_NORMAL_ACTIVE; - port->tty = NULL; - wake_up_interruptible(&port->open_wait); + rc_shutdown_port(tty, bp, port); + port->port.count = 0; + port->port.flags &= ~ASYNC_NORMAL_ACTIVE; + port->port.tty = NULL; + wake_up_interruptible(&port->port.open_wait); } static void rc_set_termios(struct tty_struct *tty, @@ -1575,11 +1549,8 @@ static int __init rc_init_drivers(void) } memset(rc_port, 0, sizeof(rc_port)); for (i = 0; i < RC_NPORT * RC_NBOARD; i++) { + tty_port_init(&rc_port[i].port); rc_port[i].magic = RISCOM8_MAGIC; - rc_port[i].close_delay = 50 * HZ / 100; - rc_port[i].closing_wait = 3000 * HZ / 100; - init_waitqueue_head(&rc_port[i].open_wait); - init_waitqueue_head(&rc_port[i].close_wait); } return 0; } diff --git a/drivers/char/riscom8.h b/drivers/char/riscom8.h index cdfdf439447..c9876b3f971 100644 --- a/drivers/char/riscom8.h +++ b/drivers/char/riscom8.h @@ -66,23 +66,15 @@ struct riscom_board { struct riscom_port { int magic; + struct tty_port port; int baud_base; - int flags; - struct tty_struct * tty; - int count; - int blocked_open; int timeout; - int close_delay; - unsigned char * xmit_buf; int custom_divisor; int xmit_head; int xmit_tail; int xmit_cnt; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; short wakeup_chars; short break_length; - unsigned short closing_wait; unsigned char mark_mask; unsigned char IER; unsigned char MSVR; diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index 743dc80a932..e670eae2f51 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -72,6 +72,7 @@ #include <linux/tty.h> #include <linux/tty_driver.h> #include <linux/tty_flip.h> +#include <linux/serial.h> #include <linux/string.h> #include <linux/fcntl.h> #include <linux/ptrace.h> @@ -81,7 +82,7 @@ #include <linux/completion.h> #include <linux/wait.h> #include <linux/pci.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/atomic.h> #include <asm/unaligned.h> #include <linux/bitops.h> @@ -434,15 +435,15 @@ static void rp_do_transmit(struct r_port *info) #endif if (!info) return; - if (!info->tty) { + if (!info->port.tty) { printk(KERN_WARNING "rp: WARNING %s called with " - "info->tty==NULL\n", __func__); + "info->port.tty==NULL\n", __func__); clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]); return; } spin_lock_irqsave(&info->slock, flags); - tty = info->tty; + tty = info->port.tty; info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp); /* Loop sending data to FIFO until done or FIFO full */ @@ -502,13 +503,13 @@ static void rp_handle_port(struct r_port *info) "info->flags & NOT_INIT\n"); return; } - if (!info->tty) { + if (!info->port.tty) { printk(KERN_WARNING "rp: WARNING: rp_handle_port called with " - "info->tty==NULL\n"); + "info->port.tty==NULL\n"); return; } cp = &info->channel; - tty = info->tty; + tty = info->port.tty; IntMask = sGetChanIntID(cp) & info->intmask; #ifdef ROCKET_DEBUG_INTR @@ -530,7 +531,7 @@ static void rp_handle_port(struct r_port *info) tty_hangup(tty); } info->cd_status = (ChanStatus & CD_ACT) ? 1 : 0; - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } #ifdef ROCKET_DEBUG_INTR if (IntMask & DELTA_CTS) { /* CTS change */ @@ -648,9 +649,9 @@ static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev) info->board = board; info->aiop = aiop; info->chan = chan; - info->closing_wait = 3000; - info->close_delay = 50; - init_waitqueue_head(&info->open_wait); + info->port.closing_wait = 3000; + info->port.close_delay = 50; + init_waitqueue_head(&info->port.open_wait); init_completion(&info->close_wait); info->flags &= ~ROCKET_MODE_MASK; switch (pc104[board][line]) { @@ -717,7 +718,7 @@ static void configure_r_port(struct r_port *info, unsigned rocketMode; int bits, baud, divisor; CHANNEL_t *cp; - struct ktermios *t = info->tty->termios; + struct ktermios *t = info->port.tty->termios; cp = &info->channel; cflag = t->c_cflag; @@ -750,7 +751,7 @@ static void configure_r_port(struct r_port *info, } /* baud rate */ - baud = tty_get_baud_rate(info->tty); + baud = tty_get_baud_rate(info->port.tty); if (!baud) baud = 9600; divisor = ((rp_baud_base[info->board] + (baud >> 1)) / baud) - 1; @@ -768,7 +769,7 @@ static void configure_r_port(struct r_port *info, sSetBaud(cp, divisor); /* FIXME: Should really back compute a baud rate from the divisor */ - tty_encode_baud_rate(info->tty, baud, baud); + tty_encode_baud_rate(info->port.tty, baud, baud); if (cflag & CRTSCTS) { info->intmask |= DELTA_CTS; @@ -793,15 +794,15 @@ static void configure_r_port(struct r_port *info, * Handle software flow control in the board */ #ifdef ROCKET_SOFT_FLOW - if (I_IXON(info->tty)) { + if (I_IXON(info->port.tty)) { sEnTxSoftFlowCtl(cp); - if (I_IXANY(info->tty)) { + if (I_IXANY(info->port.tty)) { sEnIXANY(cp); } else { sDisIXANY(cp); } - sSetTxXONChar(cp, START_CHAR(info->tty)); - sSetTxXOFFChar(cp, STOP_CHAR(info->tty)); + sSetTxXONChar(cp, START_CHAR(info->port.tty)); + sSetTxXOFFChar(cp, STOP_CHAR(info->port.tty)); } else { sDisTxSoftFlowCtl(cp); sDisIXANY(cp); @@ -813,24 +814,24 @@ static void configure_r_port(struct r_port *info, * Set up ignore/read mask words */ info->read_status_mask = STMRCVROVRH | 0xFF; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask |= STMFRAMEH | STMPARITYH; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask |= STMBREAKH; /* * Characters to ignore */ info->ignore_status_mask = 0; - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask |= STMFRAMEH | STMPARITYH; - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask |= STMBREAKH; /* * If we're ignoring parity and break indicators, * ignore overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask |= STMRCVROVRH; } @@ -863,7 +864,7 @@ static void configure_r_port(struct r_port *info, } } -/* info->count is considered critical, protected by spinlocks. */ +/* info->port.count is considered critical, protected by spinlocks. */ static int block_til_ready(struct tty_struct *tty, struct file *filp, struct r_port *info) { @@ -897,13 +898,13 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, /* * Block waiting for the carrier detect and the line to become free. While we are in - * this loop, info->count is dropped by one, so that rp_close() knows when to free things. + * this loop, info->port.count is dropped by one, so that rp_close() knows when to free things. * We restore it upon exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&info->open_wait, &wait); + add_wait_queue(&info->port.open_wait, &wait); #ifdef ROCKET_DEBUG_OPEN - printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->count); + printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->port.count); #endif spin_lock_irqsave(&info->slock, flags); @@ -912,10 +913,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, #else if (!tty_hung_up_p(filp)) { extra_count = 1; - info->count--; + info->port.count--; } #endif - info->blocked_open++; + info->port.blocked_open++; spin_unlock_irqrestore(&info->slock, flags); @@ -940,24 +941,24 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, } #ifdef ROCKET_DEBUG_OPEN printk(KERN_INFO "block_til_ready blocking: ttyR%d, count = %d, flags=0x%0x\n", - info->line, info->count, info->flags); + info->line, info->port.count, info->flags); #endif schedule(); /* Don't hold spinlock here, will hang PC */ } __set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); + remove_wait_queue(&info->port.open_wait, &wait); spin_lock_irqsave(&info->slock, flags); if (extra_count) - info->count++; - info->blocked_open--; + info->port.count++; + info->port.blocked_open--; spin_unlock_irqrestore(&info->slock, flags); #ifdef ROCKET_DEBUG_OPEN printk(KERN_INFO "block_til_ready after blocking: ttyR%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif if (retval) return retval; @@ -1001,9 +1002,9 @@ static int rp_open(struct tty_struct *tty, struct file *filp) info->xmit_buf = (unsigned char *) page; tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; - if (info->count++ == 0) { + if (info->port.count++ == 0) { atomic_inc(&rp_num_ports_open); #ifdef ROCKET_DEBUG_OPEN @@ -1012,7 +1013,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp) #endif } #ifdef ROCKET_DEBUG_OPEN - printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->count); + printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count); #endif /* @@ -1048,13 +1049,13 @@ static int rp_open(struct tty_struct *tty, struct file *filp) * Set up the tty->alt_speed kludge */ if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI) - info->tty->alt_speed = 57600; + info->port.tty->alt_speed = 57600; if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI) - info->tty->alt_speed = 115200; + info->port.tty->alt_speed = 115200; if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI) - info->tty->alt_speed = 230400; + info->port.tty->alt_speed = 230400; if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP) - info->tty->alt_speed = 460800; + info->port.tty->alt_speed = 460800; configure_r_port(info, NULL); if (tty->termios->c_cflag & CBAUD) { @@ -1076,7 +1077,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp) } /* - * Exception handler that closes a serial port. info->count is considered critical. + * Exception handler that closes a serial port. info->port.count is considered critical. */ static void rp_close(struct tty_struct *tty, struct file *filp) { @@ -1089,14 +1090,14 @@ static void rp_close(struct tty_struct *tty, struct file *filp) return; #ifdef ROCKET_DEBUG_OPEN - printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->count); + printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->port.count); #endif if (tty_hung_up_p(filp)) return; spin_lock_irqsave(&info->slock, flags); - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->port.count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty * structure will be freed. Info->count should always @@ -1105,15 +1106,15 @@ static void rp_close(struct tty_struct *tty, struct file *filp) * serial port won't be shutdown. */ printk(KERN_WARNING "rp_close: bad serial port count; " - "tty->count is 1, info->count is %d\n", info->count); - info->count = 1; + "tty->count is 1, info->port.count is %d\n", info->port.count); + info->port.count = 1; } - if (--info->count < 0) { + if (--info->port.count < 0) { printk(KERN_WARNING "rp_close: bad serial port count for " - "ttyR%d: %d\n", info->line, info->count); - info->count = 0; + "ttyR%d: %d\n", info->line, info->port.count); + info->port.count = 0; } - if (info->count) { + if (info->port.count) { spin_unlock_irqrestore(&info->slock, flags); return; } @@ -1137,8 +1138,8 @@ static void rp_close(struct tty_struct *tty, struct file *filp) /* * Wait for the transmit buffer to clear */ - if (info->closing_wait != ROCKET_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, info->closing_wait); + if (info->port.closing_wait != ROCKET_CLOSING_WAIT_NONE) + tty_wait_until_sent(tty, info->port.closing_wait); /* * Before we drop DTR, make sure the UART transmitter * has completely drained; this is especially @@ -1167,11 +1168,11 @@ static void rp_close(struct tty_struct *tty, struct file *filp) clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]); - if (info->blocked_open) { - if (info->close_delay) { - msleep_interruptible(jiffies_to_msecs(info->close_delay)); + if (info->port.blocked_open) { + if (info->port.close_delay) { + msleep_interruptible(jiffies_to_msecs(info->port.close_delay)); } - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } else { if (info->xmit_buf) { free_page((unsigned long) info->xmit_buf); @@ -1327,8 +1328,8 @@ static int get_config(struct r_port *info, struct rocket_config __user *retinfo) memset(&tmp, 0, sizeof (tmp)); tmp.line = info->line; tmp.flags = info->flags; - tmp.close_delay = info->close_delay; - tmp.closing_wait = info->closing_wait; + tmp.close_delay = info->port.close_delay; + tmp.closing_wait = info->port.closing_wait; tmp.port = rcktpt_io_addr[(info->line >> 5) & 3]; if (copy_to_user(retinfo, &tmp, sizeof (*retinfo))) @@ -1353,17 +1354,17 @@ static int set_config(struct r_port *info, struct rocket_config __user *new_info } info->flags = ((info->flags & ~ROCKET_FLAGS) | (new_serial.flags & ROCKET_FLAGS)); - info->close_delay = new_serial.close_delay; - info->closing_wait = new_serial.closing_wait; + info->port.close_delay = new_serial.close_delay; + info->port.closing_wait = new_serial.closing_wait; if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI) - info->tty->alt_speed = 57600; + info->port.tty->alt_speed = 57600; if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI) - info->tty->alt_speed = 115200; + info->port.tty->alt_speed = 115200; if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI) - info->tty->alt_speed = 230400; + info->port.tty->alt_speed = 230400; if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP) - info->tty->alt_speed = 460800; + info->port.tty->alt_speed = 460800; configure_r_port(info, NULL); return 0; @@ -1636,13 +1637,13 @@ static void rp_hangup(struct tty_struct *tty) rp_flush_buffer(tty); if (info->flags & ROCKET_CLOSING) return; - if (info->count) + if (info->port.count) atomic_dec(&rp_num_ports_open); clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]); - info->count = 0; + info->port.count = 0; info->flags &= ~ROCKET_NORMAL_ACTIVE; - info->tty = NULL; + info->port.tty = NULL; cp = &info->channel; sDisRxFIFO(cp); @@ -1653,7 +1654,7 @@ static void rp_hangup(struct tty_struct *tty) sClrTxXOFF(cp); info->flags &= ~ROCKET_INITIALIZED; - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } /* @@ -1762,7 +1763,7 @@ static int rp_write(struct tty_struct *tty, /* Write remaining data into the port's xmit_buf */ while (1) { - if (!info->tty) /* Seemingly obligatory check... */ + if (!info->port.tty) /* Seemingly obligatory check... */ goto end; c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1); c = min(c, XMIT_BUF_SIZE - info->xmit_head); diff --git a/drivers/char/rocket.h b/drivers/char/rocket.h index ae6b04f90c0..a8b09195ebb 100644 --- a/drivers/char/rocket.h +++ b/drivers/char/rocket.h @@ -64,8 +64,8 @@ struct rocket_version { /* * For closing_wait and closing_wait2 */ -#define ROCKET_CLOSING_WAIT_NONE 65535 -#define ROCKET_CLOSING_WAIT_INF 0 +#define ROCKET_CLOSING_WAIT_NONE ASYNC_CLOSING_WAIT_NONE +#define ROCKET_CLOSING_WAIT_INF ASYNC_CLOSING_WAIT_INF /* * Rocketport ioctls -- "RP" diff --git a/drivers/char/rocket_int.h b/drivers/char/rocket_int.h index 143cc432fdb..21f3ff53ba3 100644 --- a/drivers/char/rocket_int.h +++ b/drivers/char/rocket_int.h @@ -1125,18 +1125,14 @@ Warnings: This function writes the data byte without checking to see if struct r_port { int magic; + struct tty_port port; int line; - int flags; - int count; - int blocked_open; - struct tty_struct *tty; + int flags; /* Don't yet match the ASY_ flags!! */ unsigned int board:3; unsigned int aiop:2; unsigned int chan:3; CONTROLLER_t *ctlp; CHANNEL_t channel; - int closing_wait; - int close_delay; int intmask; int xmit_fifo_room; /* room in xmit fifo */ unsigned char *xmit_buf; @@ -1148,8 +1144,7 @@ struct r_port { int read_status_mask; int cps; - wait_queue_head_t open_wait; - struct completion close_wait; + struct completion close_wait; /* Not yet matching the core */ spinlock_t slock; struct mutex write_mtx; }; diff --git a/drivers/char/selection.c b/drivers/char/selection.c index d63f5ccc29e..2978a49a172 100644 --- a/drivers/char/selection.c +++ b/drivers/char/selection.c @@ -327,7 +327,8 @@ int paste_selection(struct tty_struct *tty) } count = sel_buffer_lth - pasted; count = min(count, tty->receive_room); - tty->ldisc.receive_buf(tty, sel_buffer + pasted, NULL, count); + tty->ldisc.ops->receive_buf(tty, sel_buffer + pasted, + NULL, count); pasted += count; } remove_wait_queue(&vc->paste_wait, &wait); diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c index 2ee4d989375..037dc47e4cb 100644 --- a/drivers/char/specialix.c +++ b/drivers/char/specialix.c @@ -608,9 +608,9 @@ static inline struct specialix_port * sx_get_port(struct specialix_board * bp, dprintk (SX_DEBUG_CHAN, "channel: %d\n", channel); if (channel < CD186x_NCH) { port = &sx_port[board_No(bp) * SX_NPORT + channel]; - dprintk (SX_DEBUG_CHAN, "port: %d %p flags: 0x%x\n",board_No(bp) * SX_NPORT + channel, port, port->flags & ASYNC_INITIALIZED); + dprintk (SX_DEBUG_CHAN, "port: %d %p flags: 0x%lx\n",board_No(bp) * SX_NPORT + channel, port, port->port.flags & ASYNC_INITIALIZED); - if (port->flags & ASYNC_INITIALIZED) { + if (port->port.flags & ASYNC_INITIALIZED) { dprintk (SX_DEBUG_CHAN, "port: %d %p\n", channel, port); func_exit(); return port; @@ -637,7 +637,7 @@ static inline void sx_receive_exc(struct specialix_board * bp) func_exit(); return; } - tty = port->tty; + tty = port->port.tty; status = sx_in(bp, CD186x_RCSR); @@ -673,7 +673,7 @@ static inline void sx_receive_exc(struct specialix_board * bp) dprintk(SX_DEBUG_RX, "sx%d: port %d: Handling break...\n", board_No(bp), port_No(port)); flag = TTY_BREAK; - if (port->flags & ASYNC_SAK) + if (port->port.flags & ASYNC_SAK) do_SAK(tty); } else if (status & RCSR_PE) @@ -707,7 +707,7 @@ static inline void sx_receive(struct specialix_board * bp) func_exit(); return; } - tty = port->tty; + tty = port->port.tty; count = sx_in(bp, CD186x_RDCR); dprintk (SX_DEBUG_RX, "port: %p: count: %d\n", port, count); @@ -734,7 +734,7 @@ static inline void sx_transmit(struct specialix_board * bp) return; } dprintk (SX_DEBUG_TX, "port: %p\n", port); - tty = port->tty; + tty = port->port.tty; if (port->IER & IER_TXEMPTY) { /* FIFO drained */ @@ -811,7 +811,7 @@ static inline void sx_check_modem(struct specialix_board * bp) if (!(port = sx_get_port(bp, "Modem"))) return; - tty = port->tty; + tty = port->port.tty; mcr = sx_in(bp, CD186x_MCR); printk ("mcr = %02x.\n", mcr); @@ -821,7 +821,7 @@ static inline void sx_check_modem(struct specialix_board * bp) msvr_cd = sx_in(bp, CD186x_MSVR) & MSVR_CD; if (msvr_cd) { dprintk (SX_DEBUG_SIGNALS, "Waking up guys in open.\n"); - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); } else { dprintk (SX_DEBUG_SIGNALS, "Sending HUP.\n"); tty_hangup(tty); @@ -1030,7 +1030,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p func_enter(); - if (!(tty = port->tty) || !tty->termios) { + if (!(tty = port->port.tty) || !tty->termios) { func_exit(); return; } @@ -1052,9 +1052,9 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p baud = tty_get_baud_rate(tty); if (baud == 38400) { - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) baud = 57600; - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) baud = 115200; } @@ -1244,7 +1244,7 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port func_enter(); - if (port->flags & ASYNC_INITIALIZED) { + if (port->port.flags & ASYNC_INITIALIZED) { func_exit(); return 0; } @@ -1268,12 +1268,12 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port spin_lock_irqsave(&port->lock, flags); - if (port->tty) - clear_bit(TTY_IO_ERROR, &port->tty->flags); + if (port->port.tty) + clear_bit(TTY_IO_ERROR, &port->port.tty->flags); port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; sx_change_speed(bp, port); - port->flags |= ASYNC_INITIALIZED; + port->port.flags |= ASYNC_INITIALIZED; spin_unlock_irqrestore(&port->lock, flags); @@ -1292,7 +1292,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port * func_enter(); - if (!(port->flags & ASYNC_INITIALIZED)) { + if (!(port->port.flags & ASYNC_INITIALIZED)) { func_exit(); return; } @@ -1315,7 +1315,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port * spin_lock_irqsave(&bp->lock, flags); sx_out(bp, CD186x_CAR, port_No(port)); - if (!(tty = port->tty) || C_HUPCL(tty)) { + if (!(tty = port->port.tty) || C_HUPCL(tty)) { /* Drop DTR */ sx_out(bp, CD186x_MSVDTR, 0); } @@ -1330,7 +1330,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port * spin_unlock_irqrestore(&bp->lock, flags); if (tty) set_bit(TTY_IO_ERROR, &tty->flags); - port->flags &= ~ASYNC_INITIALIZED; + port->port.flags &= ~ASYNC_INITIALIZED; if (!bp->count) sx_shutdown_board(bp); @@ -1354,9 +1354,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, * If the device is in the middle of being closed, then block * until it's done, and then try again. */ - if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&port->close_wait); - if (port->flags & ASYNC_HUP_NOTIFY) { + if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&port->port.close_wait); + if (port->port.flags & ASYNC_HUP_NOTIFY) { func_exit(); return -EAGAIN; } else { @@ -1371,7 +1371,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, */ if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) { - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; func_exit(); return 0; } @@ -1387,13 +1387,13 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&port->open_wait, &wait); + add_wait_queue(&port->port.open_wait, &wait); spin_lock_irqsave(&port->lock, flags); if (!tty_hung_up_p(filp)) { - port->count--; + port->port.count--; } spin_unlock_irqrestore(&port->lock, flags); - port->blocked_open++; + port->port.blocked_open++; while (1) { spin_lock_irqsave(&bp->lock, flags); sx_out(bp, CD186x_CAR, port_No(port)); @@ -1410,14 +1410,14 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, spin_unlock_irqrestore(&bp->lock, flags); set_current_state(TASK_INTERRUPTIBLE); if (tty_hung_up_p(filp) || - !(port->flags & ASYNC_INITIALIZED)) { - if (port->flags & ASYNC_HUP_NOTIFY) + !(port->port.flags & ASYNC_INITIALIZED)) { + if (port->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; break; } - if (!(port->flags & ASYNC_CLOSING) && + if (!(port->port.flags & ASYNC_CLOSING) && (do_clocal || CD)) break; if (signal_pending(current)) { @@ -1428,19 +1428,19 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, } set_current_state(TASK_RUNNING); - remove_wait_queue(&port->open_wait, &wait); + remove_wait_queue(&port->port.open_wait, &wait); spin_lock_irqsave(&port->lock, flags); if (!tty_hung_up_p(filp)) { - port->count++; + port->port.count++; } - port->blocked_open--; + port->port.blocked_open--; spin_unlock_irqrestore(&port->lock, flags); if (retval) { func_exit(); return retval; } - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; func_exit(); return 0; } @@ -1484,10 +1484,10 @@ static int sx_open(struct tty_struct * tty, struct file * filp) } spin_lock_irqsave(&bp->lock, flags); - port->count++; + port->port.count++; bp->count++; tty->driver_data = port; - port->tty = tty; + port->port.tty = tty; spin_unlock_irqrestore(&bp->lock, flags); if ((error = sx_setup_port(bp, port))) { @@ -1547,15 +1547,15 @@ static void sx_close(struct tty_struct * tty, struct file * filp) } bp = port_Board(port); - if ((tty->count == 1) && (port->count != 1)) { + if ((tty->count == 1) && (port->port.count != 1)) { printk(KERN_ERR "sx%d: sx_close: bad port count;" " tty->count is 1, port count is %d\n", - board_No(bp), port->count); - port->count = 1; + board_No(bp), port->port.count); + port->port.count = 1; } - if (port->count > 1) { - port->count--; + if (port->port.count > 1) { + port->port.count--; bp->count--; spin_unlock_irqrestore(&port->lock, flags); @@ -1563,7 +1563,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp) func_exit(); return; } - port->flags |= ASYNC_CLOSING; + port->port.flags |= ASYNC_CLOSING; /* * Now we wait for the transmit buffer to clear; and we notify * the line discipline to only process XON/XOFF characters. @@ -1571,8 +1571,8 @@ static void sx_close(struct tty_struct * tty, struct file * filp) tty->closing = 1; spin_unlock_irqrestore(&port->lock, flags); dprintk (SX_DEBUG_OPEN, "Closing\n"); - if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE) { - tty_wait_until_sent(tty, port->closing_wait); + if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) { + tty_wait_until_sent(tty, port->port.closing_wait); } /* * At this point we stop accepting input. To do this, we @@ -1582,7 +1582,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp) */ dprintk (SX_DEBUG_OPEN, "Closed\n"); port->IER &= ~IER_RXD; - if (port->flags & ASYNC_INITIALIZED) { + if (port->port.flags & ASYNC_INITIALIZED) { port->IER &= ~IER_TXRDY; port->IER |= IER_TXEMPTY; spin_lock_irqsave(&bp->lock, flags); @@ -1611,10 +1611,10 @@ static void sx_close(struct tty_struct * tty, struct file * filp) board_No(bp), bp->count, tty->index); bp->count = 0; } - if (--port->count < 0) { + if (--port->port.count < 0) { printk(KERN_ERR "sx%d: sx_close: bad port count for tty%d: %d\n", - board_No(bp), port_No(port), port->count); - port->count = 0; + board_No(bp), port_No(port), port->port.count); + port->port.count = 0; } sx_shutdown_port(bp, port); @@ -1622,16 +1622,16 @@ static void sx_close(struct tty_struct * tty, struct file * filp) tty_ldisc_flush(tty); spin_lock_irqsave(&port->lock, flags); tty->closing = 0; - port->tty = NULL; + port->port.tty = NULL; spin_unlock_irqrestore(&port->lock, flags); - if (port->blocked_open) { - if (port->close_delay) { - msleep_interruptible(jiffies_to_msecs(port->close_delay)); + if (port->port.blocked_open) { + if (port->port.close_delay) { + msleep_interruptible(jiffies_to_msecs(port->port.close_delay)); } - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); } - port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&port->close_wait); + port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + wake_up_interruptible(&port->port.close_wait); func_exit(); } @@ -1815,7 +1815,7 @@ static int sx_tiocmget(struct tty_struct *tty, struct file *file) dprintk (SX_DEBUG_INIT, "Got msvr[%d] = %02x, car = %d.\n", port_No(port), status, sx_in (bp, CD186x_CAR)); dprintk (SX_DEBUG_INIT, "sx_port = %p, port = %p\n", sx_port, port); - if (SX_CRTSCTS(port->tty)) { + if (SX_CRTSCTS(port->port.tty)) { result = /* (status & MSVR_RTS) ? */ TIOCM_DTR /* : 0) */ | ((status & MSVR_DTR) ? TIOCM_RTS : 0) | ((status & MSVR_CD) ? TIOCM_CAR : 0) @@ -1857,7 +1857,7 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file, /* if (set & TIOCM_DTR) port->MSVR |= MSVR_DTR; */ - if (SX_CRTSCTS(port->tty)) { + if (SX_CRTSCTS(port->port.tty)) { if (set & TIOCM_RTS) port->MSVR |= MSVR_DTR; } else { @@ -1869,7 +1869,7 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file, port->MSVR &= ~MSVR_RTS; */ /* if (clear & TIOCM_DTR) port->MSVR &= ~MSVR_DTR; */ - if (SX_CRTSCTS(port->tty)) { + if (SX_CRTSCTS(port->port.tty)) { if (clear & TIOCM_RTS) port->MSVR &= ~MSVR_DTR; } else { @@ -1929,27 +1929,27 @@ static inline int sx_set_serial_info(struct specialix_port * port, lock_kernel(); - change_speed = ((port->flags & ASYNC_SPD_MASK) != + change_speed = ((port->port.flags & ASYNC_SPD_MASK) != (tmp.flags & ASYNC_SPD_MASK)); change_speed |= (tmp.custom_divisor != port->custom_divisor); if (!capable(CAP_SYS_ADMIN)) { - if ((tmp.close_delay != port->close_delay) || - (tmp.closing_wait != port->closing_wait) || + if ((tmp.close_delay != port->port.close_delay) || + (tmp.closing_wait != port->port.closing_wait) || ((tmp.flags & ~ASYNC_USR_MASK) != - (port->flags & ~ASYNC_USR_MASK))) { + (port->port.flags & ~ASYNC_USR_MASK))) { func_exit(); unlock_kernel(); return -EPERM; } - port->flags = ((port->flags & ~ASYNC_USR_MASK) | + port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) | (tmp.flags & ASYNC_USR_MASK)); port->custom_divisor = tmp.custom_divisor; } else { - port->flags = ((port->flags & ~ASYNC_FLAGS) | + port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) | (tmp.flags & ASYNC_FLAGS)); - port->close_delay = tmp.close_delay; - port->closing_wait = tmp.closing_wait; + port->port.close_delay = tmp.close_delay; + port->port.closing_wait = tmp.closing_wait; port->custom_divisor = tmp.custom_divisor; } if (change_speed) { @@ -1975,10 +1975,10 @@ static inline int sx_get_serial_info(struct specialix_port * port, tmp.line = port - sx_port; tmp.port = bp->base; tmp.irq = bp->irq; - tmp.flags = port->flags; + tmp.flags = port->port.flags; tmp.baud_base = (SX_OSCFREQ + CD186x_TPC/2) / CD186x_TPC; - tmp.close_delay = port->close_delay * HZ/100; - tmp.closing_wait = port->closing_wait * HZ/100; + tmp.close_delay = port->port.close_delay * HZ/100; + tmp.closing_wait = port->port.closing_wait * HZ/100; tmp.custom_divisor = port->custom_divisor; tmp.xmit_fifo_size = CD186x_NFIFO; unlock_kernel(); @@ -2199,17 +2199,17 @@ static void sx_hangup(struct tty_struct * tty) sx_shutdown_port(bp, port); spin_lock_irqsave(&port->lock, flags); - bp->count -= port->count; + bp->count -= port->port.count; if (bp->count < 0) { printk(KERN_ERR "sx%d: sx_hangup: bad board count: %d port: %d\n", board_No(bp), bp->count, tty->index); bp->count = 0; } - port->count = 0; - port->flags &= ~ASYNC_NORMAL_ACTIVE; - port->tty = NULL; + port->port.count = 0; + port->port.flags &= ~ASYNC_NORMAL_ACTIVE; + port->port.tty = NULL; spin_unlock_irqrestore(&port->lock, flags); - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); func_exit(); } @@ -2224,10 +2224,6 @@ static void sx_set_termios(struct tty_struct * tty, struct ktermios * old_termio if (sx_paranoia_check(port, tty->name, "sx_set_termios")) return; - if (tty->termios->c_cflag == old_termios->c_cflag && - tty->termios->c_iflag == old_termios->c_iflag) - return; - bp = port_Board(port); spin_lock_irqsave(&port->lock, flags); sx_change_speed(port_Board(port), port); @@ -2297,10 +2293,7 @@ static int sx_init_drivers(void) memset(sx_port, 0, sizeof(sx_port)); for (i = 0; i < SX_NPORT * SX_NBOARD; i++) { sx_port[i].magic = SPECIALIX_MAGIC; - sx_port[i].close_delay = 50 * HZ/100; - sx_port[i].closing_wait = 3000 * HZ/100; - init_waitqueue_head(&sx_port[i].open_wait); - init_waitqueue_head(&sx_port[i].close_wait); + tty_port_init(&sx_port[i].port); spin_lock_init(&sx_port[i].lock); } diff --git a/drivers/char/specialix_io8.h b/drivers/char/specialix_io8.h index 3f2f85bdf51..c63005274d9 100644 --- a/drivers/char/specialix_io8.h +++ b/drivers/char/specialix_io8.h @@ -107,23 +107,17 @@ struct specialix_board { struct specialix_port { int magic; + struct tty_port port; int baud_base; int flags; - struct tty_struct * tty; - int count; - int blocked_open; int timeout; - int close_delay; unsigned char * xmit_buf; int custom_divisor; int xmit_head; int xmit_tail; int xmit_cnt; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; short wakeup_chars; short break_length; - unsigned short closing_wait; unsigned char mark_mask; unsigned char IER; unsigned char MSVR; diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index d17be10c5d2..0243efb0be9 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -613,17 +613,17 @@ static void stl_cd_change(struct stlport *portp) { unsigned int oldsigs = portp->sigs; - if (!portp->tty) + if (!portp->port.tty) return; portp->sigs = stl_getsignals(portp); if ((portp->sigs & TIOCM_CD) && ((oldsigs & TIOCM_CD) == 0)) - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); if ((oldsigs & TIOCM_CD) && ((portp->sigs & TIOCM_CD) == 0)) - if (portp->flags & ASYNC_CHECK_CD) - tty_hangup(portp->tty); + if (portp->port.flags & ASYNC_CHECK_CD) + tty_hangup(portp->port.tty); } /* @@ -734,11 +734,11 @@ static int stl_open(struct tty_struct *tty, struct file *filp) * On the first open of the device setup the port hardware, and * initialize the per port data structure. */ - portp->tty = tty; + portp->port.tty = tty; tty->driver_data = portp; - portp->refcount++; + portp->port.count++; - if ((portp->flags & ASYNC_INITIALIZED) == 0) { + if ((portp->port.flags & ASYNC_INITIALIZED) == 0) { if (!portp->tx.buf) { portp->tx.buf = kmalloc(STL_TXBUFSIZE, GFP_KERNEL); if (!portp->tx.buf) @@ -752,7 +752,7 @@ static int stl_open(struct tty_struct *tty, struct file *filp) stl_enablerxtx(portp, 1, 1); stl_startrxtx(portp, 1, 0); clear_bit(TTY_IO_ERROR, &tty->flags); - portp->flags |= ASYNC_INITIALIZED; + portp->port.flags |= ASYNC_INITIALIZED; } /* @@ -761,9 +761,9 @@ static int stl_open(struct tty_struct *tty, struct file *filp) * The sleep here does not need interrupt protection since the wakeup * for it is done with the same context. */ - if (portp->flags & ASYNC_CLOSING) { - interruptible_sleep_on(&portp->close_wait); - if (portp->flags & ASYNC_HUP_NOTIFY) + if (portp->port.flags & ASYNC_CLOSING) { + interruptible_sleep_on(&portp->port.close_wait); + if (portp->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; return -ERESTARTSYS; } @@ -777,7 +777,7 @@ static int stl_open(struct tty_struct *tty, struct file *filp) if ((rc = stl_waitcarrier(portp, filp)) != 0) return rc; - portp->flags |= ASYNC_NORMAL_ACTIVE; + portp->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -801,25 +801,25 @@ static int stl_waitcarrier(struct stlport *portp, struct file *filp) spin_lock_irqsave(&stallion_lock, flags); - if (portp->tty->termios->c_cflag & CLOCAL) + if (portp->port.tty->termios->c_cflag & CLOCAL) doclocal++; portp->openwaitcnt++; if (! tty_hung_up_p(filp)) - portp->refcount--; + portp->port.count--; for (;;) { /* Takes brd_lock internally */ stl_setsignals(portp, 1, 1); if (tty_hung_up_p(filp) || - ((portp->flags & ASYNC_INITIALIZED) == 0)) { - if (portp->flags & ASYNC_HUP_NOTIFY) + ((portp->port.flags & ASYNC_INITIALIZED) == 0)) { + if (portp->port.flags & ASYNC_HUP_NOTIFY) rc = -EBUSY; else rc = -ERESTARTSYS; break; } - if (((portp->flags & ASYNC_CLOSING) == 0) && + if (((portp->port.flags & ASYNC_CLOSING) == 0) && (doclocal || (portp->sigs & TIOCM_CD))) break; if (signal_pending(current)) { @@ -827,11 +827,11 @@ static int stl_waitcarrier(struct stlport *portp, struct file *filp) break; } /* FIXME */ - interruptible_sleep_on(&portp->open_wait); + interruptible_sleep_on(&portp->port.open_wait); } if (! tty_hung_up_p(filp)) - portp->refcount++; + portp->port.count++; portp->openwaitcnt--; spin_unlock_irqrestore(&stallion_lock, flags); @@ -904,15 +904,15 @@ static void stl_close(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&stallion_lock, flags); return; } - if ((tty->count == 1) && (portp->refcount != 1)) - portp->refcount = 1; - if (portp->refcount-- > 1) { + if ((tty->count == 1) && (portp->port.count != 1)) + portp->port.count = 1; + if (portp->port.count-- > 1) { spin_unlock_irqrestore(&stallion_lock, flags); return; } - portp->refcount = 0; - portp->flags |= ASYNC_CLOSING; + portp->port.count = 0; + portp->port.flags |= ASYNC_CLOSING; /* * May want to wait for any data to drain before closing. The BUSY @@ -930,7 +930,7 @@ static void stl_close(struct tty_struct *tty, struct file *filp) spin_lock_irqsave(&stallion_lock, flags); - portp->flags &= ~ASYNC_INITIALIZED; + portp->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&stallion_lock, flags); stl_disableintrs(portp); @@ -949,16 +949,16 @@ static void stl_close(struct tty_struct *tty, struct file *filp) tty_ldisc_flush(tty); tty->closing = 0; - portp->tty = NULL; + portp->port.tty = NULL; if (portp->openwaitcnt) { if (portp->close_delay) msleep_interruptible(jiffies_to_msecs(portp->close_delay)); - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); } - portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&portp->close_wait); + portp->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + wake_up_interruptible(&portp->port.close_wait); } /*****************************************************************************/ @@ -1153,7 +1153,7 @@ static int stl_getserial(struct stlport *portp, struct serial_struct __user *sp) memset(&sio, 0, sizeof(struct serial_struct)); sio.line = portp->portnr; sio.port = portp->ioaddr; - sio.flags = portp->flags; + sio.flags = portp->port.flags; sio.baud_base = portp->baud_base; sio.close_delay = portp->close_delay; sio.closing_wait = portp->closing_wait; @@ -1194,17 +1194,17 @@ static int stl_setserial(struct stlport *portp, struct serial_struct __user *sp) if ((sio.baud_base != portp->baud_base) || (sio.close_delay != portp->close_delay) || ((sio.flags & ~ASYNC_USR_MASK) != - (portp->flags & ~ASYNC_USR_MASK))) + (portp->port.flags & ~ASYNC_USR_MASK))) return -EPERM; } - portp->flags = (portp->flags & ~ASYNC_USR_MASK) | + portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) | (sio.flags & ASYNC_USR_MASK); portp->baud_base = sio.baud_base; portp->close_delay = sio.close_delay; portp->closing_wait = sio.closing_wait; portp->custom_divisor = sio.custom_divisor; - stl_setport(portp, portp->tty->termios); + stl_setport(portp, portp->port.tty->termios); return 0; } @@ -1353,7 +1353,7 @@ static void stl_settermios(struct tty_struct *tty, struct ktermios *old) stl_start(tty); } if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL)) - wake_up_interruptible(&portp->open_wait); + wake_up_interruptible(&portp->port.open_wait); } /*****************************************************************************/ @@ -1438,7 +1438,7 @@ static void stl_hangup(struct tty_struct *tty) if (portp == NULL) return; - portp->flags &= ~ASYNC_INITIALIZED; + portp->port.flags &= ~ASYNC_INITIALIZED; stl_disableintrs(portp); if (tty->termios->c_cflag & HUPCL) stl_setsignals(portp, 0, 0); @@ -1452,10 +1452,10 @@ static void stl_hangup(struct tty_struct *tty) portp->tx.head = NULL; portp->tx.tail = NULL; } - portp->tty = NULL; - portp->flags &= ~ASYNC_NORMAL_ACTIVE; - portp->refcount = 0; - wake_up_interruptible(&portp->open_wait); + portp->port.tty = NULL; + portp->port.flags &= ~ASYNC_NORMAL_ACTIVE; + portp->port.count = 0; + wake_up_interruptible(&portp->port.open_wait); } /*****************************************************************************/ @@ -1814,8 +1814,8 @@ static int __devinit stl_initports(struct stlbrd *brdp, struct stlpanel *panelp) portp->baud_base = STL_BAUDBASE; portp->close_delay = STL_CLOSEDELAY; portp->closing_wait = 30 * HZ; - init_waitqueue_head(&portp->open_wait); - init_waitqueue_head(&portp->close_wait); + init_waitqueue_head(&portp->port.open_wait); + init_waitqueue_head(&portp->port.close_wait); portp->stats.brd = portp->brdnr; portp->stats.panel = portp->panelnr; portp->stats.port = portp->portnr; @@ -1840,8 +1840,8 @@ static void stl_cleanup_panels(struct stlbrd *brdp) portp = panelp->ports[k]; if (portp == NULL) continue; - if (portp->tty != NULL) - stl_hangup(portp->tty); + if (portp->port.tty != NULL) + stl_hangup(portp->port.tty); kfree(portp->tx.buf); kfree(portp); } @@ -2513,7 +2513,7 @@ static int stl_getportstats(struct stlport *portp, comstats_t __user *cp) } portp->stats.state = portp->istate; - portp->stats.flags = portp->flags; + portp->stats.flags = portp->port.flags; portp->stats.hwid = portp->hwid; portp->stats.ttystate = 0; @@ -2524,16 +2524,16 @@ static int stl_getportstats(struct stlport *portp, comstats_t __user *cp) portp->stats.rxbuffered = 0; spin_lock_irqsave(&stallion_lock, flags); - if (portp->tty != NULL) - if (portp->tty->driver_data == portp) { - portp->stats.ttystate = portp->tty->flags; + if (portp->port.tty != NULL) + if (portp->port.tty->driver_data == portp) { + portp->stats.ttystate = portp->port.tty->flags; /* No longer available as a statistic */ - portp->stats.rxbuffered = 1; /*portp->tty->flip.count; */ - if (portp->tty->termios != NULL) { - portp->stats.cflags = portp->tty->termios->c_cflag; - portp->stats.iflags = portp->tty->termios->c_iflag; - portp->stats.oflags = portp->tty->termios->c_oflag; - portp->stats.lflags = portp->tty->termios->c_lflag; + portp->stats.rxbuffered = 1; /*portp->port.tty->flip.count; */ + if (portp->port.tty->termios != NULL) { + portp->stats.cflags = portp->port.tty->termios->c_cflag; + portp->stats.iflags = portp->port.tty->termios->c_iflag; + portp->stats.oflags = portp->port.tty->termios->c_oflag; + portp->stats.lflags = portp->port.tty->termios->c_lflag; } } spin_unlock_irqrestore(&stallion_lock, flags); @@ -2939,15 +2939,15 @@ static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp) } baudrate = stl_baudrates[baudrate]; if ((tiosp->c_cflag & CBAUD) == B38400) { - if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) baudrate = 57600; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) baudrate = 115200; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) baudrate = 230400; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) baudrate = 460800; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) baudrate = (portp->baud_base / portp->custom_divisor); } if (baudrate > STL_CD1400MAXBAUD) @@ -2969,9 +2969,9 @@ static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp) mcor1 |= MCOR1_DCD; mcor2 |= MCOR2_DCD; sreron |= SRER_MODEM; - portp->flags |= ASYNC_CHECK_CD; + portp->port.flags |= ASYNC_CHECK_CD; } else - portp->flags &= ~ASYNC_CHECK_CD; + portp->port.flags &= ~ASYNC_CHECK_CD; /* * Setup cd1400 enhanced modes if we can. In particular we want to @@ -3242,7 +3242,7 @@ static void stl_cd1400flowctrl(struct stlport *portp, int state) if (portp == NULL) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -3304,7 +3304,7 @@ static void stl_cd1400sendflow(struct stlport *portp, int state) if (portp == NULL) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -3503,8 +3503,8 @@ static void stl_cd1400txisr(struct stlpanel *panelp, int ioaddr) if ((len == 0) || ((len < STL_TXBUFLOW) && (test_bit(ASYI_TXLOW, &portp->istate) == 0))) { set_bit(ASYI_TXLOW, &portp->istate); - if (portp->tty) - tty_wakeup(portp->tty); + if (portp->port.tty) + tty_wakeup(portp->port.tty); } if (len == 0) { @@ -3568,7 +3568,7 @@ static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr) return; } portp = panelp->ports[(ioack >> 3)]; - tty = portp->tty; + tty = portp->port.tty; if ((ioack & ACK_TYPMASK) == ACK_TYPRXGOOD) { outb((RDCR + portp->uartaddr), ioaddr); @@ -3613,7 +3613,7 @@ static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr) if (portp->rxmarkmsk & status) { if (status & ST_BREAK) { status = TTY_BREAK; - if (portp->flags & ASYNC_SAK) { + if (portp->port.flags & ASYNC_SAK) { do_SAK(tty); BRDENABLE(portp->brdnr, portp->pagenr); } @@ -3899,15 +3899,15 @@ static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp) } baudrate = stl_baudrates[baudrate]; if ((tiosp->c_cflag & CBAUD) == B38400) { - if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) baudrate = 57600; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) baudrate = 115200; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) baudrate = 230400; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) baudrate = 460800; - else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) + else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) baudrate = (portp->baud_base / portp->custom_divisor); } if (baudrate > STL_SC26198MAXBAUD) @@ -3922,11 +3922,11 @@ static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp) * Check what form of modem signaling is required and set it up. */ if (tiosp->c_cflag & CLOCAL) { - portp->flags &= ~ASYNC_CHECK_CD; + portp->port.flags &= ~ASYNC_CHECK_CD; } else { iopr |= IOPR_DCDCOS; imron |= IR_IOPORT; - portp->flags |= ASYNC_CHECK_CD; + portp->port.flags |= ASYNC_CHECK_CD; } /* @@ -4174,7 +4174,7 @@ static void stl_sc26198flowctrl(struct stlport *portp, int state) if (portp == NULL) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -4243,7 +4243,7 @@ static void stl_sc26198sendflow(struct stlport *portp, int state) if (portp == NULL) return; - tty = portp->tty; + tty = portp->port.tty; if (tty == NULL) return; @@ -4421,8 +4421,8 @@ static void stl_sc26198txisr(struct stlport *portp) if ((len == 0) || ((len < STL_TXBUFLOW) && (test_bit(ASYI_TXLOW, &portp->istate) == 0))) { set_bit(ASYI_TXLOW, &portp->istate); - if (portp->tty) - tty_wakeup(portp->tty); + if (portp->port.tty) + tty_wakeup(portp->port.tty); } if (len == 0) { @@ -4475,7 +4475,7 @@ static void stl_sc26198rxisr(struct stlport *portp, unsigned int iack) pr_debug("stl_sc26198rxisr(portp=%p,iack=%x)\n", portp, iack); - tty = portp->tty; + tty = portp->port.tty; ioaddr = portp->ioaddr; outb(GIBCR, (ioaddr + XP_ADDR)); len = inb(ioaddr + XP_DATA) + 1; @@ -4527,7 +4527,7 @@ static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char struct tty_struct *tty; unsigned int ioaddr; - tty = portp->tty; + tty = portp->port.tty; ioaddr = portp->ioaddr; if (status & SR_RXPARITY) @@ -4544,7 +4544,7 @@ static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char if (portp->rxmarkmsk & status) { if (status & SR_RXBREAK) { status = TTY_BREAK; - if (portp->flags & ASYNC_SAK) { + if (portp->port.flags & ASYNC_SAK) { do_SAK(tty); BRDENABLE(portp->brdnr, portp->pagenr); } diff --git a/drivers/char/sx.c b/drivers/char/sx.c index b1a7a8cb65e..d5cffcd6a57 100644 --- a/drivers/char/sx.c +++ b/drivers/char/sx.c @@ -1,4 +1,3 @@ - /* sx.c -- driver for the Specialix SX series cards. * * This driver will also support the older SI, and XIO cards. @@ -930,7 +929,7 @@ static int sx_set_real_termios(void *ptr) func_enter2(); - if (!port->gs.tty) + if (!port->gs.port.tty) return 0; /* What is this doing here? -- REW @@ -941,19 +940,19 @@ static int sx_set_real_termios(void *ptr) sx_set_baud(port); -#define CFLAG port->gs.tty->termios->c_cflag +#define CFLAG port->gs.port.tty->termios->c_cflag sx_write_channel_byte(port, hi_mr1, - (C_PARENB(port->gs.tty) ? MR1_WITH : MR1_NONE) | - (C_PARODD(port->gs.tty) ? MR1_ODD : MR1_EVEN) | - (C_CRTSCTS(port->gs.tty) ? MR1_RTS_RXFLOW : 0) | + (C_PARENB(port->gs.port.tty) ? MR1_WITH : MR1_NONE) | + (C_PARODD(port->gs.port.tty) ? MR1_ODD : MR1_EVEN) | + (C_CRTSCTS(port->gs.port.tty) ? MR1_RTS_RXFLOW : 0) | (((CFLAG & CSIZE) == CS8) ? MR1_8_BITS : 0) | (((CFLAG & CSIZE) == CS7) ? MR1_7_BITS : 0) | (((CFLAG & CSIZE) == CS6) ? MR1_6_BITS : 0) | (((CFLAG & CSIZE) == CS5) ? MR1_5_BITS : 0)); sx_write_channel_byte(port, hi_mr2, - (C_CRTSCTS(port->gs.tty) ? MR2_CTS_TXFLOW : 0) | - (C_CSTOPB(port->gs.tty) ? MR2_2_STOP : + (C_CRTSCTS(port->gs.port.tty) ? MR2_CTS_TXFLOW : 0) | + (C_CSTOPB(port->gs.port.tty) ? MR2_2_STOP : MR2_1_STOP)); switch (CFLAG & CSIZE) { @@ -976,44 +975,44 @@ static int sx_set_real_termios(void *ptr) } sx_write_channel_byte(port, hi_prtcl, - (I_IXON(port->gs.tty) ? SP_TXEN : 0) | - (I_IXOFF(port->gs.tty) ? SP_RXEN : 0) | - (I_IXANY(port->gs.tty) ? SP_TANY : 0) | SP_DCEN); + (I_IXON(port->gs.port.tty) ? SP_TXEN : 0) | + (I_IXOFF(port->gs.port.tty) ? SP_RXEN : 0) | + (I_IXANY(port->gs.port.tty) ? SP_TANY : 0) | SP_DCEN); sx_write_channel_byte(port, hi_break, - (I_IGNBRK(port->gs.tty) ? BR_IGN : 0 | - I_BRKINT(port->gs.tty) ? BR_INT : 0)); + (I_IGNBRK(port->gs.port.tty) ? BR_IGN : 0 | + I_BRKINT(port->gs.port.tty) ? BR_INT : 0)); - sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.tty)); - sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.tty)); - sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.tty)); - sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.tty)); + sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.port.tty)); + sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.port.tty)); + sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.port.tty)); + sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.port.tty)); sx_reconfigure_port(port); /* Tell line discipline whether we will do input cooking */ - if (I_OTHER(port->gs.tty)) { - clear_bit(TTY_HW_COOK_IN, &port->gs.tty->flags); + if (I_OTHER(port->gs.port.tty)) { + clear_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags); } else { - set_bit(TTY_HW_COOK_IN, &port->gs.tty->flags); + set_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags); } sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ", - (unsigned int)port->gs.tty->termios->c_iflag, - I_OTHER(port->gs.tty)); + (unsigned int)port->gs.port.tty->termios->c_iflag, + I_OTHER(port->gs.port.tty)); /* Tell line discipline whether we will do output cooking. * If OPOST is set and no other output flags are set then we can do output * processing. Even if only *one* other flag in the O_OTHER group is set * we do cooking in software. */ - if (O_OPOST(port->gs.tty) && !O_OTHER(port->gs.tty)) { - set_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags); + if (O_OPOST(port->gs.port.tty) && !O_OTHER(port->gs.port.tty)) { + set_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags); } else { - clear_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags); + clear_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags); } sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n", - (unsigned int)port->gs.tty->termios->c_oflag, - O_OTHER(port->gs.tty)); + (unsigned int)port->gs.port.tty->termios->c_oflag, + O_OTHER(port->gs.port.tty)); /* port->c_dcd = sx_get_CD (port); */ func_exit(); return 0; @@ -1102,8 +1101,8 @@ static void sx_transmit_chars(struct sx_port *port) sx_disable_tx_interrupts(port); } - if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.tty) { - tty_wakeup(port->gs.tty); + if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.port.tty) { + tty_wakeup(port->gs.port.tty); sx_dprintk(SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n", port->gs.wakeup_chars); } @@ -1126,7 +1125,7 @@ static inline void sx_receive_chars(struct sx_port *port) unsigned char *rp; func_enter2(); - tty = port->gs.tty; + tty = port->gs.port.tty; while (1) { rx_op = sx_read_channel_byte(port, hi_rxopos); c = (sx_read_channel_byte(port, hi_rxipos) - rx_op) & 0xff; @@ -1211,12 +1210,12 @@ static inline void sx_check_modem_signals(struct sx_port *port) /* DCD went UP */ if ((sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED) && - !(port->gs.tty->termios-> + !(port->gs.port.tty->termios-> c_cflag & CLOCAL)) { /* Are we blocking in open? */ sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " "active, unblocking open\n"); - wake_up_interruptible(&port->gs. + wake_up_interruptible(&port->gs.port. open_wait); } else { sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " @@ -1224,10 +1223,10 @@ static inline void sx_check_modem_signals(struct sx_port *port) } } else { /* DCD went down! */ - if (!(port->gs.tty->termios->c_cflag & CLOCAL)){ + if (!(port->gs.port.tty->termios->c_cflag & CLOCAL)){ sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " "dropped. hanging up....\n"); - tty_hangup(port->gs.tty); + tty_hangup(port->gs.port.tty); } else { sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " "dropped. ignoring.\n"); @@ -1325,7 +1324,7 @@ static irqreturn_t sx_interrupt(int irq, void *ptr) for (i = 0; i < board->nports; i++) { port = &board->ports[i]; - if (port->gs.flags & GS_ACTIVE) { + if (port->gs.port.flags & GS_ACTIVE) { if (sx_read_channel_byte(port, hi_state)) { sx_dprintk(SX_DEBUG_INTERRUPTS, "Port %d: " "modem signal change?... \n",i); @@ -1334,7 +1333,7 @@ static irqreturn_t sx_interrupt(int irq, void *ptr) if (port->gs.xmit_cnt) { sx_transmit_chars(port); } - if (!(port->gs.flags & SX_RX_THROTTLE)) { + if (!(port->gs.port.flags & SX_RX_THROTTLE)) { sx_receive_chars(port); } } @@ -1373,7 +1372,7 @@ static void sx_disable_tx_interrupts(void *ptr) struct sx_port *port = ptr; func_enter2(); - port->gs.flags &= ~GS_TX_INTEN; + port->gs.port.flags &= ~GS_TX_INTEN; func_exit(); } @@ -1394,7 +1393,7 @@ static void sx_enable_tx_interrupts(void *ptr) /* XXX Must be "HIGH_WATER" for SI card according to doc. */ if (data_in_buffer < LOW_WATER) - port->gs.flags &= ~GS_TX_INTEN; + port->gs.port.flags &= ~GS_TX_INTEN; func_exit(); } @@ -1442,8 +1441,8 @@ static void sx_shutdown_port(void *ptr) func_enter(); - port->gs.flags &= ~GS_ACTIVE; - if (port->gs.tty && (port->gs.tty->termios->c_cflag & HUPCL)) { + port->gs.port.flags &= ~GS_ACTIVE; + if (port->gs.port.tty && (port->gs.port.tty->termios->c_cflag & HUPCL)) { sx_setsignals(port, 0, 0); sx_reconfigure_port(port); } @@ -1485,8 +1484,8 @@ static int sx_open(struct tty_struct *tty, struct file *filp) spin_lock_irqsave(&port->gs.driver_lock, flags); tty->driver_data = port; - port->gs.tty = tty; - port->gs.count++; + port->gs.port.tty = tty; + port->gs.port.count++; spin_unlock_irqrestore(&port->gs.driver_lock, flags); sx_dprintk(SX_DEBUG_OPEN, "starting port\n"); @@ -1497,12 +1496,12 @@ static int sx_open(struct tty_struct *tty, struct file *filp) retval = gs_init_port(&port->gs); sx_dprintk(SX_DEBUG_OPEN, "done gs_init\n"); if (retval) { - port->gs.count--; + port->gs.port.count--; return retval; } - port->gs.flags |= GS_ACTIVE; - if (port->gs.count <= 1) + port->gs.port.flags |= GS_ACTIVE; + if (port->gs.port.count <= 1) sx_setsignals(port, 1, 1); #if 0 @@ -1513,12 +1512,12 @@ static int sx_open(struct tty_struct *tty, struct file *filp) my_hd_io(port->board->base + port->ch_base, sizeof(*port)); #endif - if (port->gs.count <= 1) { + if (port->gs.port.count <= 1) { if (sx_send_command(port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) { printk(KERN_ERR "sx: Card didn't respond to LOPEN " "command.\n"); spin_lock_irqsave(&port->gs.driver_lock, flags); - port->gs.count--; + port->gs.port.count--; spin_unlock_irqrestore(&port->gs.driver_lock, flags); return -EIO; } @@ -1526,11 +1525,11 @@ static int sx_open(struct tty_struct *tty, struct file *filp) retval = gs_block_til_ready(port, filp); sx_dprintk(SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n", - retval, port->gs.count); + retval, port->gs.port.count); if (retval) { /* - * Don't lower gs.count here because sx_close() will be called later + * Don't lower gs.port.count here because sx_close() will be called later */ return retval; @@ -1571,14 +1570,14 @@ static void sx_close(void *ptr) } sx_dprintk(SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n", - 5 * HZ - to - 1, port->gs.count); + 5 * HZ - to - 1, port->gs.port.count); - if (port->gs.count) { + if (port->gs.port.count) { sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n", - port->gs.count); + port->gs.port.count); /*printk("%s SETTING port count to zero: %p count: %d\n", - __func__, port, port->gs.count); - port->gs.count = 0;*/ + __func__, port, port->gs.port.count); + port->gs.port.count = 0;*/ } func_exit(); @@ -1939,7 +1938,7 @@ static void sx_throttle(struct tty_struct *tty) * control then throttle the port. */ if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) { - port->gs.flags |= SX_RX_THROTTLE; + port->gs.port.flags |= SX_RX_THROTTLE; } func_exit(); } @@ -1953,7 +1952,7 @@ static void sx_unthrottle(struct tty_struct *tty) * this port in case we disabled flow control while the port * was throttled */ - port->gs.flags &= ~SX_RX_THROTTLE; + port->gs.port.flags &= ~SX_RX_THROTTLE; func_exit(); return; } @@ -2396,6 +2395,7 @@ static int sx_init_portstructs(int nboards, int nports) board->ports = port; for (j = 0; j < boards[i].nports; j++) { sx_dprintk(SX_DEBUG_INIT, "initing port %d\n", j); + tty_port_init(&port->gs.port); port->gs.magic = SX_MAGIC; port->gs.close_delay = HZ / 2; port->gs.closing_wait = 30 * HZ; @@ -2408,9 +2408,6 @@ static int sx_init_portstructs(int nboards, int nports) /* * Initializing wait queue */ - init_waitqueue_head(&port->gs.open_wait); - init_waitqueue_head(&port->gs.close_wait); - port++; } } diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c index ac5080df256..527d220aa4a 100644 --- a/drivers/char/synclink.c +++ b/drivers/char/synclink.c @@ -180,19 +180,14 @@ struct tx_holding_buffer { struct mgsl_struct { int magic; - int flags; - int count; /* count of opens */ + struct tty_port port; int line; int hw_version; - unsigned short close_delay; - unsigned short closing_wait; /* time to wait before closing */ struct mgsl_icount icount; - struct tty_struct *tty; int timeout; int x_char; /* xon/xoff character */ - int blocked_open; /* # of blocked opens */ u16 read_status_mask; u16 ignore_status_mask; unsigned char *xmit_buf; @@ -200,9 +195,6 @@ struct mgsl_struct { int xmit_tail; int xmit_cnt; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; - wait_queue_head_t status_event_wait_q; wait_queue_head_t event_wait_q; struct timer_list tx_timer; /* HDLC transmit timeout timer */ @@ -975,8 +967,8 @@ static void ldisc_receive_buf(struct tty_struct *tty, return; ld = tty_ldisc_ref(tty); if (ld) { - if (ld->receive_buf) - ld->receive_buf(tty, data, flags, count); + if (ld->ops->receive_buf) + ld->ops->receive_buf(tty, data, flags, count); tty_ldisc_deref(ld); } } @@ -1134,7 +1126,7 @@ static void mgsl_bh_receive(struct mgsl_struct *info) static void mgsl_bh_transmit(struct mgsl_struct *info) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; unsigned long flags; if ( debug_level >= DEBUG_LEVEL_BH ) @@ -1276,7 +1268,7 @@ static void mgsl_isr_transmit_status( struct mgsl_struct *info ) else #endif { - if (info->tty->stopped || info->tty->hw_stopped) { + if (info->port.tty->stopped || info->port.tty->hw_stopped) { usc_stop_transmitter(info); return; } @@ -1357,29 +1349,29 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info ) wake_up_interruptible(&info->status_event_wait_q); wake_up_interruptible(&info->event_wait_q); - if ( (info->flags & ASYNC_CHECK_CD) && + if ( (info->port.flags & ASYNC_CHECK_CD) && (status & MISCSTATUS_DCD_LATCHED) ) { if ( debug_level >= DEBUG_LEVEL_ISR ) printk("%s CD now %s...", info->device_name, (status & MISCSTATUS_DCD) ? "on" : "off"); if (status & MISCSTATUS_DCD) - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); else { if ( debug_level >= DEBUG_LEVEL_ISR ) printk("doing serial hangup..."); - if (info->tty) - tty_hangup(info->tty); + if (info->port.tty) + tty_hangup(info->port.tty); } } - if ( (info->flags & ASYNC_CTS_FLOW) && + if ( (info->port.flags & ASYNC_CTS_FLOW) && (status & MISCSTATUS_CTS_LATCHED) ) { - if (info->tty->hw_stopped) { + if (info->port.tty->hw_stopped) { if (status & MISCSTATUS_CTS) { if ( debug_level >= DEBUG_LEVEL_ISR ) printk("CTS tx start..."); - if (info->tty) - info->tty->hw_stopped = 0; + if (info->port.tty) + info->port.tty->hw_stopped = 0; usc_start_transmitter(info); info->pending_bh |= BH_TRANSMIT; return; @@ -1388,8 +1380,8 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info ) if (!(status & MISCSTATUS_CTS)) { if ( debug_level >= DEBUG_LEVEL_ISR ) printk("CTS tx stop..."); - if (info->tty) - info->tty->hw_stopped = 1; + if (info->port.tty) + info->port.tty->hw_stopped = 1; usc_stop_transmitter(info); } } @@ -1423,7 +1415,7 @@ static void mgsl_isr_transmit_data( struct mgsl_struct *info ) usc_ClearIrqPendingBits( info, TRANSMIT_DATA ); - if (info->tty->stopped || info->tty->hw_stopped) { + if (info->port.tty->stopped || info->port.tty->hw_stopped) { usc_stop_transmitter(info); return; } @@ -1453,7 +1445,7 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info ) u16 status; int work = 0; unsigned char DataByte; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; struct mgsl_icount *icount = &info->icount; if ( debug_level >= DEBUG_LEVEL_ISR ) @@ -1514,7 +1506,7 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info ) if (status & RXSTATUS_BREAK_RECEIVED) { flag = TTY_BREAK; - if (info->flags & ASYNC_SAK) + if (info->port.flags & ASYNC_SAK) do_SAK(tty); } else if (status & RXSTATUS_PARITY_ERROR) flag = TTY_PARITY; @@ -1771,7 +1763,7 @@ static int startup(struct mgsl_struct * info) if ( debug_level >= DEBUG_LEVEL_INFO ) printk("%s(%d):mgsl_startup(%s)\n",__FILE__,__LINE__,info->device_name); - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) return 0; if (!info->xmit_buf) { @@ -1798,8 +1790,8 @@ static int startup(struct mgsl_struct * info) retval = mgsl_adapter_test(info); if ( retval ) { - if (capable(CAP_SYS_ADMIN) && info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (capable(CAP_SYS_ADMIN) && info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); mgsl_release_resources(info); return retval; } @@ -1807,10 +1799,10 @@ static int startup(struct mgsl_struct * info) /* program hardware for current parameters */ mgsl_change_params(info); - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; return 0; @@ -1827,7 +1819,7 @@ static void shutdown(struct mgsl_struct * info) { unsigned long flags; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; if (debug_level >= DEBUG_LEVEL_INFO) @@ -1864,7 +1856,7 @@ static void shutdown(struct mgsl_struct * info) /* on the ISA adapter. This has no effect for the PCI adapter */ usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12)); - if (!info->tty || info->tty->termios->c_cflag & HUPCL) { + if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) { info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS); usc_set_serial_signals(info); } @@ -1873,10 +1865,10 @@ static void shutdown(struct mgsl_struct * info) mgsl_release_resources(info); - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; } /* end of shutdown() */ @@ -1908,7 +1900,7 @@ static void mgsl_program_hw(struct mgsl_struct *info) usc_EnableInterrupts(info, IO_PIN); usc_get_serial_signals(info); - if (info->netcount || info->tty->termios->c_cflag & CREAD) + if (info->netcount || info->port.tty->termios->c_cflag & CREAD) usc_start_receiver(info); spin_unlock_irqrestore(&info->irq_spinlock,flags); @@ -1921,14 +1913,14 @@ static void mgsl_change_params(struct mgsl_struct *info) unsigned cflag; int bits_per_char; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return; if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):mgsl_change_params(%s)\n", __FILE__,__LINE__, info->device_name ); - cflag = info->tty->termios->c_cflag; + cflag = info->port.tty->termios->c_cflag; /* if B0 rate (hangup) specified then negate DTR and RTS */ /* otherwise assert DTR and RTS */ @@ -1976,7 +1968,7 @@ static void mgsl_change_params(struct mgsl_struct *info) * current data rate. */ if (info->params.data_rate <= 460800) - info->params.data_rate = tty_get_baud_rate(info->tty); + info->params.data_rate = tty_get_baud_rate(info->port.tty); if ( info->params.data_rate ) { info->timeout = (32*HZ*bits_per_char) / @@ -1985,31 +1977,31 @@ static void mgsl_change_params(struct mgsl_struct *info) info->timeout += HZ/50; /* Add .02 seconds of slop */ if (cflag & CRTSCTS) - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; else - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; if (cflag & CLOCAL) - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; else - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; /* process tty input control flags */ info->read_status_mask = RXSTATUS_OVERRUN; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask |= RXSTATUS_BREAK_RECEIVED; - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR; - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask |= RXSTATUS_BREAK_RECEIVED; /* If ignoring parity and break indicators, ignore * overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask |= RXSTATUS_OVERRUN; } @@ -3113,32 +3105,32 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp) if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):mgsl_close(%s) entry, count=%d\n", - __FILE__,__LINE__, info->device_name, info->count); + __FILE__,__LINE__, info->device_name, info->port.count); - if (!info->count) + if (!info->port.count) return; if (tty_hung_up_p(filp)) goto cleanup; - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->port.count != 1)) { /* * tty->count is 1 and the tty structure will be freed. - * info->count should be one in this case. + * info->port.count should be one in this case. * if it's not, correct it so that the port is shutdown. */ printk("mgsl_close: bad refcount; tty->count is 1, " - "info->count is %d\n", info->count); - info->count = 1; + "info->port.count is %d\n", info->port.count); + info->port.count = 1; } - info->count--; + info->port.count--; /* if at least one open remaining, leave hardware active */ - if (info->count) + if (info->port.count) goto cleanup; - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; /* set tty->closing to notify line discipline to * only process XON/XOFF characters. Only the N_TTY @@ -3148,14 +3140,14 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp) /* wait for transmit data to clear all layers */ - if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) { + if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) { if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):mgsl_close(%s) calling tty_wait_until_sent\n", __FILE__,__LINE__, info->device_name ); - tty_wait_until_sent(tty, info->closing_wait); + tty_wait_until_sent(tty, info->port.closing_wait); } - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) mgsl_wait_until_sent(tty, info->timeout); mgsl_flush_buffer(tty); @@ -3165,23 +3157,23 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp) shutdown(info); tty->closing = 0; - info->tty = NULL; + info->port.tty = NULL; - if (info->blocked_open) { - if (info->close_delay) { - msleep_interruptible(jiffies_to_msecs(info->close_delay)); + if (info->port.blocked_open) { + if (info->port.close_delay) { + msleep_interruptible(jiffies_to_msecs(info->port.close_delay)); } - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&info->close_wait); + wake_up_interruptible(&info->port.close_wait); cleanup: if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__, - tty->driver->name, info->count); + tty->driver->name, info->port.count); } /* end of mgsl_close() */ @@ -3211,7 +3203,7 @@ static void mgsl_wait_until_sent(struct tty_struct *tty, int timeout) if (mgsl_paranoia_check(info, tty->name, "mgsl_wait_until_sent")) return; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) goto exit; orig_jiffies = jiffies; @@ -3283,11 +3275,11 @@ static void mgsl_hangup(struct tty_struct *tty) mgsl_flush_buffer(tty); shutdown(info); - info->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - info->tty = NULL; + info->port.count = 0; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + info->port.tty = NULL; - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } /* end of mgsl_hangup() */ @@ -3319,7 +3311,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){ /* nonblock mode is set or port is not enabled */ - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -3328,25 +3320,25 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, /* Wait for carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that + * this loop, info->port.count is dropped by one, so that * mgsl_close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&info->open_wait, &wait); + add_wait_queue(&info->port.open_wait, &wait); if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):block_til_ready before block on %s count=%d\n", - __FILE__,__LINE__, tty->driver->name, info->count ); + __FILE__,__LINE__, tty->driver->name, info->port.count ); spin_lock_irqsave(&info->irq_spinlock, flags); if (!tty_hung_up_p(filp)) { extra_count = true; - info->count--; + info->port.count--; } spin_unlock_irqrestore(&info->irq_spinlock, flags); - info->blocked_open++; + info->port.blocked_open++; while (1) { if (tty->termios->c_cflag & CBAUD) { @@ -3358,8 +3350,8 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){ - retval = (info->flags & ASYNC_HUP_NOTIFY) ? + if (tty_hung_up_p(filp) || !(info->port.flags & ASYNC_INITIALIZED)){ + retval = (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS; break; } @@ -3368,7 +3360,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, usc_get_serial_signals(info); spin_unlock_irqrestore(&info->irq_spinlock,flags); - if (!(info->flags & ASYNC_CLOSING) && + if (!(info->port.flags & ASYNC_CLOSING) && (do_clocal || (info->serial_signals & SerialSignal_DCD)) ) { break; } @@ -3380,24 +3372,24 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):block_til_ready blocking on %s count=%d\n", - __FILE__,__LINE__, tty->driver->name, info->count ); + __FILE__,__LINE__, tty->driver->name, info->port.count ); schedule(); } set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); + remove_wait_queue(&info->port.open_wait, &wait); if (extra_count) - info->count++; - info->blocked_open--; + info->port.count++; + info->port.blocked_open--; if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):block_til_ready after blocking on %s count=%d\n", - __FILE__,__LINE__, tty->driver->name, info->count ); + __FILE__,__LINE__, tty->driver->name, info->port.count ); if (!retval) - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return retval; @@ -3435,22 +3427,22 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp) return -ENODEV; tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):mgsl_open(%s), old ref count = %d\n", - __FILE__,__LINE__,tty->driver->name, info->count); + __FILE__,__LINE__,tty->driver->name, info->port.count); /* If port is closing, signal caller to try again */ - if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){ - if (info->flags & ASYNC_CLOSING) - interruptible_sleep_on(&info->close_wait); - retval = ((info->flags & ASYNC_HUP_NOTIFY) ? + if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){ + if (info->port.flags & ASYNC_CLOSING) + interruptible_sleep_on(&info->port.close_wait); + retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); goto cleanup; } - info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; spin_lock_irqsave(&info->netlock, flags); if (info->netcount) { @@ -3458,10 +3450,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp) spin_unlock_irqrestore(&info->netlock, flags); goto cleanup; } - info->count++; + info->port.count++; spin_unlock_irqrestore(&info->netlock, flags); - if (info->count == 1) { + if (info->port.count == 1) { /* 1st open on this device, init hardware */ retval = startup(info); if (retval < 0) @@ -3484,9 +3476,9 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp) cleanup: if (retval) { if (tty->count == 1) - info->tty = NULL; /* tty layer will release tty struct */ - if(info->count) - info->count--; + info->port.tty = NULL; /* tty layer will release tty struct */ + if(info->port.count) + info->port.count--; } return retval; @@ -4332,13 +4324,12 @@ static struct mgsl_struct* mgsl_allocate_device(void) if (!info) { printk("Error can't allocate device instance data\n"); } else { + tty_port_init(&info->port); info->magic = MGSL_MAGIC; INIT_WORK(&info->task, mgsl_bh_handler); info->max_frame_size = 4096; - info->close_delay = 5*HZ/10; - info->closing_wait = 30*HZ; - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + info->port.close_delay = 5*HZ/10; + info->port.closing_wait = 30*HZ; init_waitqueue_head(&info->status_event_wait_q); init_waitqueue_head(&info->event_wait_q); spin_lock_init(&info->irq_spinlock); @@ -6575,7 +6566,7 @@ static bool mgsl_get_rx_frame(struct mgsl_struct *info) unsigned int framesize = 0; bool ReturnCode = false; unsigned long flags; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; bool return_frame = false; /* @@ -6640,9 +6631,8 @@ static bool mgsl_get_rx_frame(struct mgsl_struct *info) framesize = 0; #if SYNCLINK_GENERIC_HDLC { - struct net_device_stats *stats = hdlc_stats(info->netdev); - stats->rx_errors++; - stats->rx_frame_errors++; + info->netdev->stats.rx_errors++; + info->netdev->stats.rx_frame_errors++; } #endif } else @@ -6774,7 +6764,7 @@ static bool mgsl_get_raw_rx_frame(struct mgsl_struct *info) unsigned int framesize = 0; bool ReturnCode = false; unsigned long flags; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; /* * current_rx_buffer points to the 1st buffer of the next available @@ -7711,7 +7701,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, unsigned short new_crctype; /* return error if TTY interface open */ - if (info->count) + if (info->port.count) return -EBUSY; switch (encoding) @@ -7753,7 +7743,6 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) { struct mgsl_struct *info = dev_to_port(dev); - struct net_device_stats *stats = hdlc_stats(dev); unsigned long flags; if (debug_level >= DEBUG_LEVEL_INFO) @@ -7767,8 +7756,8 @@ static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) mgsl_load_tx_dma_buffer(info, skb->data, skb->len); /* update network statistics */ - stats->tx_packets++; - stats->tx_bytes += skb->len; + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; /* done with socket buffer, so free it */ dev_kfree_skb(skb); @@ -7808,7 +7797,7 @@ static int hdlcdev_open(struct net_device *dev) /* arbitrate between network and tty opens */ spin_lock_irqsave(&info->netlock, flags); - if (info->count != 0 || info->netcount != 0) { + if (info->port.count != 0 || info->netcount != 0) { printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name); spin_unlock_irqrestore(&info->netlock, flags); return -EBUSY; @@ -7894,7 +7883,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name); /* return error if TTY interface open */ - if (info->count) + if (info->port.count) return -EBUSY; if (cmd != SIOCWANDEV) @@ -7984,14 +7973,13 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) static void hdlcdev_tx_timeout(struct net_device *dev) { struct mgsl_struct *info = dev_to_port(dev); - struct net_device_stats *stats = hdlc_stats(dev); unsigned long flags; if (debug_level >= DEBUG_LEVEL_INFO) printk("hdlcdev_tx_timeout(%s)\n",dev->name); - stats->tx_errors++; - stats->tx_aborted_errors++; + dev->stats.tx_errors++; + dev->stats.tx_aborted_errors++; spin_lock_irqsave(&info->irq_spinlock,flags); usc_stop_transmitter(info); @@ -8024,27 +8012,27 @@ static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size) { struct sk_buff *skb = dev_alloc_skb(size); struct net_device *dev = info->netdev; - struct net_device_stats *stats = hdlc_stats(dev); if (debug_level >= DEBUG_LEVEL_INFO) - printk("hdlcdev_rx(%s)\n",dev->name); + printk("hdlcdev_rx(%s)\n", dev->name); if (skb == NULL) { - printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n", dev->name); - stats->rx_dropped++; + printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n", + dev->name); + dev->stats.rx_dropped++; return; } - memcpy(skb_put(skb, size),buf,size); + memcpy(skb_put(skb, size), buf, size); - skb->protocol = hdlc_type_trans(skb, info->netdev); + skb->protocol = hdlc_type_trans(skb, dev); - stats->rx_packets++; - stats->rx_bytes += size; + dev->stats.rx_packets++; + dev->stats.rx_bytes += size; netif_rx(skb); - info->netdev->last_rx = jiffies; + dev->last_rx = jiffies; } /** diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 55c1653be00..2c3e43bb2cc 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -244,11 +244,11 @@ struct _input_signal_events { */ struct slgt_info { void *if_ptr; /* General purpose pointer (used by SPPP) */ + struct tty_port port; struct slgt_info *next_device; /* device list link */ int magic; - int flags; char device_name[25]; struct pci_dev *pdev; @@ -260,23 +260,15 @@ struct slgt_info { /* array of pointers to port contexts on this adapter */ struct slgt_info *port_array[SLGT_MAX_PORTS]; - int count; /* count of opens */ int line; /* tty line instance number */ - unsigned short close_delay; - unsigned short closing_wait; /* time to wait before closing */ struct mgsl_icount icount; - struct tty_struct *tty; int timeout; int x_char; /* xon/xoff character */ - int blocked_open; /* # of blocked opens */ unsigned int read_status_mask; unsigned int ignore_status_mask; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; - wait_queue_head_t status_event_wait_q; wait_queue_head_t event_wait_q; struct timer_list tx_timer; @@ -641,8 +633,8 @@ static void ldisc_receive_buf(struct tty_struct *tty, return; ld = tty_ldisc_ref(tty); if (ld) { - if (ld->receive_buf) - ld->receive_buf(tty, data, flags, count); + if (ld->ops->receive_buf) + ld->ops->receive_buf(tty, data, flags, count); tty_ldisc_deref(ld); } } @@ -672,20 +664,20 @@ static int open(struct tty_struct *tty, struct file *filp) } tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; - DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->count)); + DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count)); /* If port is closing, signal caller to try again */ - if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){ - if (info->flags & ASYNC_CLOSING) - interruptible_sleep_on(&info->close_wait); - retval = ((info->flags & ASYNC_HUP_NOTIFY) ? + if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){ + if (info->port.flags & ASYNC_CLOSING) + interruptible_sleep_on(&info->port.close_wait); + retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); goto cleanup; } - info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; spin_lock_irqsave(&info->netlock, flags); if (info->netcount) { @@ -693,10 +685,10 @@ static int open(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&info->netlock, flags); goto cleanup; } - info->count++; + info->port.count++; spin_unlock_irqrestore(&info->netlock, flags); - if (info->count == 1) { + if (info->port.count == 1) { /* 1st open on this device, init hardware */ retval = startup(info); if (retval < 0) @@ -714,9 +706,9 @@ static int open(struct tty_struct *tty, struct file *filp) cleanup: if (retval) { if (tty->count == 1) - info->tty = NULL; /* tty layer will release tty struct */ - if(info->count) - info->count--; + info->port.tty = NULL; /* tty layer will release tty struct */ + if(info->port.count) + info->port.count--; } DBGINFO(("%s open rc=%d\n", info->device_name, retval)); @@ -729,32 +721,32 @@ static void close(struct tty_struct *tty, struct file *filp) if (sanity_check(info, tty->name, "close")) return; - DBGINFO(("%s close entry, count=%d\n", info->device_name, info->count)); + DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count)); - if (!info->count) + if (!info->port.count) return; if (tty_hung_up_p(filp)) goto cleanup; - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->port.count != 1)) { /* * tty->count is 1 and the tty structure will be freed. - * info->count should be one in this case. + * info->port.count should be one in this case. * if it's not, correct it so that the port is shutdown. */ DBGERR(("%s close: bad refcount; tty->count=1, " - "info->count=%d\n", info->device_name, info->count)); - info->count = 1; + "info->port.count=%d\n", info->device_name, info->port.count)); + info->port.count = 1; } - info->count--; + info->port.count--; /* if at least one open remaining, leave hardware active */ - if (info->count) + if (info->port.count) goto cleanup; - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; /* set tty->closing to notify line discipline to * only process XON/XOFF characters. Only the N_TTY @@ -764,12 +756,12 @@ static void close(struct tty_struct *tty, struct file *filp) /* wait for transmit data to clear all layers */ - if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) { + if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) { DBGINFO(("%s call tty_wait_until_sent\n", info->device_name)); - tty_wait_until_sent(tty, info->closing_wait); + tty_wait_until_sent(tty, info->port.closing_wait); } - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) wait_until_sent(tty, info->timeout); flush_buffer(tty); tty_ldisc_flush(tty); @@ -777,21 +769,21 @@ static void close(struct tty_struct *tty, struct file *filp) shutdown(info); tty->closing = 0; - info->tty = NULL; + info->port.tty = NULL; - if (info->blocked_open) { - if (info->close_delay) { - msleep_interruptible(jiffies_to_msecs(info->close_delay)); + if (info->port.blocked_open) { + if (info->port.close_delay) { + msleep_interruptible(jiffies_to_msecs(info->port.close_delay)); } - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&info->close_wait); + wake_up_interruptible(&info->port.close_wait); cleanup: - DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->count)); + DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count)); } static void hangup(struct tty_struct *tty) @@ -805,11 +797,11 @@ static void hangup(struct tty_struct *tty) flush_buffer(tty); shutdown(info); - info->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - info->tty = NULL; + info->port.count = 0; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + info->port.tty = NULL; - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } static void set_termios(struct tty_struct *tty, struct ktermios *old_termios) @@ -959,7 +951,7 @@ static void wait_until_sent(struct tty_struct *tty, int timeout) if (sanity_check(info, tty->name, "wait_until_sent")) return; DBGINFO(("%s wait_until_sent entry\n", info->device_name)); - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) goto exit; orig_jiffies = jiffies; @@ -1500,7 +1492,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, unsigned short new_crctype; /* return error if TTY interface open */ - if (info->count) + if (info->port.count) return -EBUSY; DBGINFO(("%s hdlcdev_attach\n", info->device_name)); @@ -1544,7 +1536,6 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) { struct slgt_info *info = dev_to_port(dev); - struct net_device_stats *stats = hdlc_stats(dev); unsigned long flags; DBGINFO(("%s hdlc_xmit\n", dev->name)); @@ -1557,8 +1548,8 @@ static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) tx_load(info, skb->data, skb->len); /* update network statistics */ - stats->tx_packets++; - stats->tx_bytes += skb->len; + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; /* done with socket buffer, so free it */ dev_kfree_skb(skb); @@ -1600,7 +1591,7 @@ static int hdlcdev_open(struct net_device *dev) /* arbitrate between network and tty opens */ spin_lock_irqsave(&info->netlock, flags); - if (info->count != 0 || info->netcount != 0) { + if (info->port.count != 0 || info->netcount != 0) { DBGINFO(("%s hdlc_open busy\n", dev->name)); spin_unlock_irqrestore(&info->netlock, flags); return -EBUSY; @@ -1685,7 +1676,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) DBGINFO(("%s hdlcdev_ioctl\n", dev->name)); /* return error if TTY interface open */ - if (info->count) + if (info->port.count) return -EBUSY; if (cmd != SIOCWANDEV) @@ -1775,13 +1766,12 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) static void hdlcdev_tx_timeout(struct net_device *dev) { struct slgt_info *info = dev_to_port(dev); - struct net_device_stats *stats = hdlc_stats(dev); unsigned long flags; DBGINFO(("%s hdlcdev_tx_timeout\n", dev->name)); - stats->tx_errors++; - stats->tx_aborted_errors++; + dev->stats.tx_errors++; + dev->stats.tx_aborted_errors++; spin_lock_irqsave(&info->lock,flags); tx_stop(info); @@ -1814,26 +1804,25 @@ static void hdlcdev_rx(struct slgt_info *info, char *buf, int size) { struct sk_buff *skb = dev_alloc_skb(size); struct net_device *dev = info->netdev; - struct net_device_stats *stats = hdlc_stats(dev); DBGINFO(("%s hdlcdev_rx\n", dev->name)); if (skb == NULL) { DBGERR(("%s: can't alloc skb, drop packet\n", dev->name)); - stats->rx_dropped++; + dev->stats.rx_dropped++; return; } - memcpy(skb_put(skb, size),buf,size); + memcpy(skb_put(skb, size), buf, size); - skb->protocol = hdlc_type_trans(skb, info->netdev); + skb->protocol = hdlc_type_trans(skb, dev); - stats->rx_packets++; - stats->rx_bytes += size; + dev->stats.rx_packets++; + dev->stats.rx_bytes += size; netif_rx(skb); - info->netdev->last_rx = jiffies; + dev->last_rx = jiffies; } /** @@ -1906,7 +1895,7 @@ static void hdlcdev_exit(struct slgt_info *info) */ static void rx_async(struct slgt_info *info) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; struct mgsl_icount *icount = &info->icount; unsigned int start, end; unsigned char *p; @@ -2057,7 +2046,7 @@ static void bh_handler(struct work_struct *work) static void bh_transmit(struct slgt_info *info) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; DBGBH(("%s bh_transmit\n", info->device_name)); if (tty) @@ -2103,17 +2092,17 @@ static void cts_change(struct slgt_info *info, unsigned short status) wake_up_interruptible(&info->event_wait_q); info->pending_bh |= BH_STATUS; - if (info->flags & ASYNC_CTS_FLOW) { - if (info->tty) { - if (info->tty->hw_stopped) { + if (info->port.flags & ASYNC_CTS_FLOW) { + if (info->port.tty) { + if (info->port.tty->hw_stopped) { if (info->signals & SerialSignal_CTS) { - info->tty->hw_stopped = 0; + info->port.tty->hw_stopped = 0; info->pending_bh |= BH_TRANSMIT; return; } } else { if (!(info->signals & SerialSignal_CTS)) - info->tty->hw_stopped = 1; + info->port.tty->hw_stopped = 1; } } } @@ -2146,12 +2135,12 @@ static void dcd_change(struct slgt_info *info, unsigned short status) wake_up_interruptible(&info->event_wait_q); info->pending_bh |= BH_STATUS; - if (info->flags & ASYNC_CHECK_CD) { + if (info->port.flags & ASYNC_CHECK_CD) { if (info->signals & SerialSignal_DCD) - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); else { - if (info->tty) - tty_hangup(info->tty); + if (info->port.tty) + tty_hangup(info->port.tty); } } } @@ -2194,12 +2183,12 @@ static void isr_serial(struct slgt_info *info) if ((status & IRQ_RXBREAK) && (status & RXBREAK)) { info->icount.brk++; /* process break detection if tty control allows */ - if (info->tty) { + if (info->port.tty) { if (!(status & info->ignore_status_mask)) { if (info->read_status_mask & MASK_BREAK) { - tty_insert_flip_char(info->tty, 0, TTY_BREAK); - if (info->flags & ASYNC_SAK) - do_SAK(info->tty); + tty_insert_flip_char(info->port.tty, 0, TTY_BREAK); + if (info->port.flags & ASYNC_SAK) + do_SAK(info->port.tty); } } } @@ -2319,7 +2308,7 @@ static void isr_txeom(struct slgt_info *info, unsigned short status) else #endif { - if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) { + if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { tx_stop(info); return; } @@ -2395,7 +2384,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id) for(i=0; i < info->port_count ; i++) { struct slgt_info *port = info->port_array[i]; - if (port && (port->count || port->netcount) && + if (port && (port->port.count || port->netcount) && port->pending_bh && !port->bh_running && !port->bh_requested) { DBGISR(("%s bh queued\n", port->device_name)); @@ -2414,7 +2403,7 @@ static int startup(struct slgt_info *info) { DBGINFO(("%s startup\n", info->device_name)); - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) return 0; if (!info->tx_buf) { @@ -2432,10 +2421,10 @@ static int startup(struct slgt_info *info) /* program hardware for current parameters */ change_params(info); - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; return 0; } @@ -2447,7 +2436,7 @@ static void shutdown(struct slgt_info *info) { unsigned long flags; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; DBGINFO(("%s shutdown\n", info->device_name)); @@ -2470,7 +2459,7 @@ static void shutdown(struct slgt_info *info) slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); - if (!info->tty || info->tty->termios->c_cflag & HUPCL) { + if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) { info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS); set_signals(info); } @@ -2479,10 +2468,10 @@ static void shutdown(struct slgt_info *info) spin_unlock_irqrestore(&info->lock,flags); - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; } static void program_hw(struct slgt_info *info) @@ -2511,7 +2500,7 @@ static void program_hw(struct slgt_info *info) get_signals(info); if (info->netcount || - (info->tty && info->tty->termios->c_cflag & CREAD)) + (info->port.tty && info->port.tty->termios->c_cflag & CREAD)) rx_start(info); spin_unlock_irqrestore(&info->lock,flags); @@ -2525,11 +2514,11 @@ static void change_params(struct slgt_info *info) unsigned cflag; int bits_per_char; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return; DBGINFO(("%s change_params\n", info->device_name)); - cflag = info->tty->termios->c_cflag; + cflag = info->port.tty->termios->c_cflag; /* if B0 rate (hangup) specified then negate DTR and RTS */ /* otherwise assert DTR and RTS */ @@ -2561,7 +2550,7 @@ static void change_params(struct slgt_info *info) bits_per_char = info->params.data_bits + info->params.stop_bits + 1; - info->params.data_rate = tty_get_baud_rate(info->tty); + info->params.data_rate = tty_get_baud_rate(info->port.tty); if (info->params.data_rate) { info->timeout = (32*HZ*bits_per_char) / @@ -2570,30 +2559,30 @@ static void change_params(struct slgt_info *info) info->timeout += HZ/50; /* Add .02 seconds of slop */ if (cflag & CRTSCTS) - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; else - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; if (cflag & CLOCAL) - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; else - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; /* process tty input control flags */ info->read_status_mask = IRQ_RXOVER; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask |= MASK_PARITY | MASK_FRAMING; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask |= MASK_BREAK; - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING; - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask |= MASK_BREAK; /* If ignoring parity and break indicators, ignore * overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask |= MASK_OVERRUN; } @@ -3144,7 +3133,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){ /* nonblock mode is set or port is not enabled */ - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -3153,21 +3142,21 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, /* Wait for carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that + * this loop, info->port.count is dropped by one, so that * close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&info->open_wait, &wait); + add_wait_queue(&info->port.open_wait, &wait); spin_lock_irqsave(&info->lock, flags); if (!tty_hung_up_p(filp)) { extra_count = true; - info->count--; + info->port.count--; } spin_unlock_irqrestore(&info->lock, flags); - info->blocked_open++; + info->port.blocked_open++; while (1) { if ((tty->termios->c_cflag & CBAUD)) { @@ -3179,8 +3168,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){ - retval = (info->flags & ASYNC_HUP_NOTIFY) ? + if (tty_hung_up_p(filp) || !(info->port.flags & ASYNC_INITIALIZED)){ + retval = (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS; break; } @@ -3189,7 +3178,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, get_signals(info); spin_unlock_irqrestore(&info->lock,flags); - if (!(info->flags & ASYNC_CLOSING) && + if (!(info->port.flags & ASYNC_CLOSING) && (do_clocal || (info->signals & SerialSignal_DCD)) ) { break; } @@ -3204,14 +3193,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, } set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); + remove_wait_queue(&info->port.open_wait, &wait); if (extra_count) - info->count++; - info->blocked_open--; + info->port.count++; + info->port.blocked_open--; if (!retval) - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; DBGINFO(("%s block_til_ready ready, rc=%d\n", tty->driver->name, retval)); return retval; @@ -3454,14 +3443,13 @@ static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev DBGERR(("%s device alloc failed adapter=%d port=%d\n", driver_name, adapter_num, port_num)); } else { + tty_port_init(&info->port); info->magic = MGSL_MAGIC; INIT_WORK(&info->task, bh_handler); info->max_frame_size = 4096; info->raw_rx_size = DMABUFSIZE; - info->close_delay = 5*HZ/10; - info->closing_wait = 30*HZ; - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + info->port.close_delay = 5*HZ/10; + info->port.closing_wait = 30*HZ; init_waitqueue_head(&info->status_event_wait_q); init_waitqueue_head(&info->event_wait_q); spin_lock_init(&info->netlock); @@ -4505,7 +4493,7 @@ static bool rx_get_frame(struct slgt_info *info) unsigned short status; unsigned int framesize = 0; unsigned long flags; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; unsigned char addr_field = 0xff; unsigned int crc_size = 0; @@ -4577,9 +4565,8 @@ check_again: #if SYNCLINK_GENERIC_HDLC if (framesize == 0) { - struct net_device_stats *stats = hdlc_stats(info->netdev); - stats->rx_errors++; - stats->rx_frame_errors++; + info->netdev->stats.rx_errors++; + info->netdev->stats.rx_frame_errors++; } #endif @@ -4656,7 +4643,7 @@ static bool rx_get_buf(struct slgt_info *info) DBGDATA(info, info->rbufs[i].buf, count, "rx"); DBGINFO(("rx_get_buf size=%d\n", count)); if (count) - ldisc_receive_buf(info->tty, info->rbufs[i].buf, + ldisc_receive_buf(info->port.tty, info->rbufs[i].buf, info->flag_buf, count); free_rbufs(info, i, i); return true; @@ -4765,11 +4752,11 @@ static int irq_test(struct slgt_info *info) { unsigned long timeout; unsigned long flags; - struct tty_struct *oldtty = info->tty; + struct tty_struct *oldtty = info->port.tty; u32 speed = info->params.data_rate; info->params.data_rate = 921600; - info->tty = NULL; + info->port.tty = NULL; spin_lock_irqsave(&info->lock, flags); async_mode(info); @@ -4797,7 +4784,7 @@ static int irq_test(struct slgt_info *info) spin_unlock_irqrestore(&info->lock,flags); info->params.data_rate = speed; - info->tty = oldtty; + info->port.tty = oldtty; info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure; return info->irq_occurred ? 0 : -ENODEV; @@ -4837,7 +4824,7 @@ static int loopback_test(struct slgt_info *info) int rc = -ENODEV; unsigned long flags; - struct tty_struct *oldtty = info->tty; + struct tty_struct *oldtty = info->port.tty; MGSL_PARAMS params; memcpy(¶ms, &info->params, sizeof(params)); @@ -4845,7 +4832,7 @@ static int loopback_test(struct slgt_info *info) info->params.mode = MGSL_MODE_ASYNC; info->params.data_rate = 921600; info->params.loopback = 1; - info->tty = NULL; + info->port.tty = NULL; /* build and send transmit frame */ for (count = 0; count < TESTFRAMESIZE; ++count) @@ -4883,7 +4870,7 @@ static int loopback_test(struct slgt_info *info) spin_unlock_irqrestore(&info->lock,flags); memcpy(&info->params, ¶ms, sizeof(info->params)); - info->tty = oldtty; + info->port.tty = oldtty; info->init_error = rc ? DiagStatus_DmaFailure : 0; return rc; diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c index bec54866e0b..5768c413634 100644 --- a/drivers/char/synclinkmp.c +++ b/drivers/char/synclinkmp.c @@ -151,18 +151,15 @@ struct _input_signal_events { typedef struct _synclinkmp_info { void *if_ptr; /* General purpose pointer (used by SPPP) */ int magic; - int flags; - int count; /* count of opens */ + struct tty_port port; int line; unsigned short close_delay; unsigned short closing_wait; /* time to wait before closing */ struct mgsl_icount icount; - struct tty_struct *tty; int timeout; int x_char; /* xon/xoff character */ - int blocked_open; /* # of blocked opens */ u16 read_status_mask1; /* break detection (SR1 indications) */ u16 read_status_mask2; /* parity/framing/overun (SR2 indications) */ unsigned char ignore_status_mask1; /* break detection (SR1 indications) */ @@ -172,9 +169,6 @@ typedef struct _synclinkmp_info { int tx_get; int tx_count; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; - wait_queue_head_t status_event_wait_q; wait_queue_head_t event_wait_q; struct timer_list tx_timer; /* HDLC transmit timeout timer */ @@ -462,13 +456,13 @@ static int synclinkmp_device_count = 0; * .text section address and breakpoint on module load. * This is useful for use with gdb and add-symbol-file command. */ -static int break_on_load=0; +static int break_on_load = 0; /* * Driver major number, defaults to zero to get auto * assigned major number. May be forced as module parameter. */ -static int ttymajor=0; +static int ttymajor = 0; /* * Array of user specified options for ISA adapters. @@ -712,8 +706,8 @@ static void ldisc_receive_buf(struct tty_struct *tty, return; ld = tty_ldisc_ref(tty); if (ld) { - if (ld->receive_buf) - ld->receive_buf(tty, data, flags, count); + if (ld->ops->receive_buf) + ld->ops->receive_buf(tty, data, flags, count); tty_ldisc_deref(ld); } } @@ -747,22 +741,22 @@ static int open(struct tty_struct *tty, struct file *filp) } tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):%s open(), old ref count = %d\n", - __FILE__,__LINE__,tty->driver->name, info->count); + __FILE__,__LINE__,tty->driver->name, info->port.count); /* If port is closing, signal caller to try again */ - if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){ - if (info->flags & ASYNC_CLOSING) - interruptible_sleep_on(&info->close_wait); - retval = ((info->flags & ASYNC_HUP_NOTIFY) ? + if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){ + if (info->port.flags & ASYNC_CLOSING) + interruptible_sleep_on(&info->port.close_wait); + retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); goto cleanup; } - info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; spin_lock_irqsave(&info->netlock, flags); if (info->netcount) { @@ -770,10 +764,10 @@ static int open(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&info->netlock, flags); goto cleanup; } - info->count++; + info->port.count++; spin_unlock_irqrestore(&info->netlock, flags); - if (info->count == 1) { + if (info->port.count == 1) { /* 1st open on this device, init hardware */ retval = startup(info); if (retval < 0) @@ -796,9 +790,9 @@ static int open(struct tty_struct *tty, struct file *filp) cleanup: if (retval) { if (tty->count == 1) - info->tty = NULL; /* tty layer will release tty struct */ - if(info->count) - info->count--; + info->port.tty = NULL; /* tty layer will release tty struct */ + if(info->port.count) + info->port.count--; } return retval; @@ -816,33 +810,33 @@ static void close(struct tty_struct *tty, struct file *filp) if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):%s close() entry, count=%d\n", - __FILE__,__LINE__, info->device_name, info->count); + __FILE__,__LINE__, info->device_name, info->port.count); - if (!info->count) + if (!info->port.count) return; if (tty_hung_up_p(filp)) goto cleanup; - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->port.count != 1)) { /* * tty->count is 1 and the tty structure will be freed. - * info->count should be one in this case. + * info->port.count should be one in this case. * if it's not, correct it so that the port is shutdown. */ printk("%s(%d):%s close: bad refcount; tty->count is 1, " - "info->count is %d\n", - __FILE__,__LINE__, info->device_name, info->count); - info->count = 1; + "info->port.count is %d\n", + __FILE__,__LINE__, info->device_name, info->port.count); + info->port.count = 1; } - info->count--; + info->port.count--; /* if at least one open remaining, leave hardware active */ - if (info->count) + if (info->port.count) goto cleanup; - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; /* set tty->closing to notify line discipline to * only process XON/XOFF characters. Only the N_TTY @@ -852,14 +846,14 @@ static void close(struct tty_struct *tty, struct file *filp) /* wait for transmit data to clear all layers */ - if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) { + if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) { if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):%s close() calling tty_wait_until_sent\n", __FILE__,__LINE__, info->device_name ); - tty_wait_until_sent(tty, info->closing_wait); + tty_wait_until_sent(tty, info->port.closing_wait); } - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) wait_until_sent(tty, info->timeout); flush_buffer(tty); @@ -869,23 +863,23 @@ static void close(struct tty_struct *tty, struct file *filp) shutdown(info); tty->closing = 0; - info->tty = NULL; + info->port.tty = NULL; - if (info->blocked_open) { - if (info->close_delay) { - msleep_interruptible(jiffies_to_msecs(info->close_delay)); + if (info->port.blocked_open) { + if (info->port.close_delay) { + msleep_interruptible(jiffies_to_msecs(info->port.close_delay)); } - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&info->close_wait); + wake_up_interruptible(&info->port.close_wait); cleanup: if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__, - tty->driver->name, info->count); + tty->driver->name, info->port.count); } /* Called by tty_hangup() when a hangup is signaled. @@ -905,11 +899,11 @@ static void hangup(struct tty_struct *tty) flush_buffer(tty); shutdown(info); - info->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - info->tty = NULL; + info->port.count = 0; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + info->port.tty = NULL; - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } /* Set new termios settings @@ -1123,7 +1117,7 @@ static void wait_until_sent(struct tty_struct *tty, int timeout) lock_kernel(); - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) goto exit; orig_jiffies = jiffies; @@ -1636,7 +1630,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, unsigned short new_crctype; /* return error if TTY interface open */ - if (info->count) + if (info->port.count) return -EBUSY; switch (encoding) @@ -1678,7 +1672,6 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding, static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) { SLMP_INFO *info = dev_to_port(dev); - struct net_device_stats *stats = hdlc_stats(dev); unsigned long flags; if (debug_level >= DEBUG_LEVEL_INFO) @@ -1692,8 +1685,8 @@ static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev) tx_load_dma_buffer(info, skb->data, skb->len); /* update network statistics */ - stats->tx_packets++; - stats->tx_bytes += skb->len; + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; /* done with socket buffer, so free it */ dev_kfree_skb(skb); @@ -1733,7 +1726,7 @@ static int hdlcdev_open(struct net_device *dev) /* arbitrate between network and tty opens */ spin_lock_irqsave(&info->netlock, flags); - if (info->count != 0 || info->netcount != 0) { + if (info->port.count != 0 || info->netcount != 0) { printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name); spin_unlock_irqrestore(&info->netlock, flags); return -EBUSY; @@ -1819,7 +1812,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name); /* return error if TTY interface open */ - if (info->count) + if (info->port.count) return -EBUSY; if (cmd != SIOCWANDEV) @@ -1909,14 +1902,13 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) static void hdlcdev_tx_timeout(struct net_device *dev) { SLMP_INFO *info = dev_to_port(dev); - struct net_device_stats *stats = hdlc_stats(dev); unsigned long flags; if (debug_level >= DEBUG_LEVEL_INFO) printk("hdlcdev_tx_timeout(%s)\n",dev->name); - stats->tx_errors++; - stats->tx_aborted_errors++; + dev->stats.tx_errors++; + dev->stats.tx_aborted_errors++; spin_lock_irqsave(&info->lock,flags); tx_stop(info); @@ -1949,27 +1941,27 @@ static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size) { struct sk_buff *skb = dev_alloc_skb(size); struct net_device *dev = info->netdev; - struct net_device_stats *stats = hdlc_stats(dev); if (debug_level >= DEBUG_LEVEL_INFO) printk("hdlcdev_rx(%s)\n",dev->name); if (skb == NULL) { - printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n", dev->name); - stats->rx_dropped++; + printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n", + dev->name); + dev->stats.rx_dropped++; return; } - memcpy(skb_put(skb, size),buf,size); + memcpy(skb_put(skb, size), buf, size); - skb->protocol = hdlc_type_trans(skb, info->netdev); + skb->protocol = hdlc_type_trans(skb, dev); - stats->rx_packets++; - stats->rx_bytes += size; + dev->stats.rx_packets++; + dev->stats.rx_bytes += size; netif_rx(skb); - info->netdev->last_rx = jiffies; + dev->last_rx = jiffies; } /** @@ -2128,7 +2120,7 @@ static void bh_receive(SLMP_INFO *info) static void bh_transmit(SLMP_INFO *info) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; if ( debug_level >= DEBUG_LEVEL_BH ) printk( "%s(%d):%s bh_transmit() entry\n", @@ -2178,7 +2170,7 @@ static void isr_timer(SLMP_INFO * info) static void isr_rxint(SLMP_INFO * info) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; struct mgsl_icount *icount = &info->icount; unsigned char status = read_reg(info, SR1) & info->ie1_value & (FLGD + IDLD + CDCD + BRKD); unsigned char status2 = read_reg(info, SR2) & info->ie2_value & OVRN; @@ -2205,7 +2197,7 @@ static void isr_rxint(SLMP_INFO * info) if (!(status & info->ignore_status_mask1)) { if (info->read_status_mask1 & BRKD) { tty_insert_flip_char(tty, 0, TTY_BREAK); - if (info->flags & ASYNC_SAK) + if (info->port.flags & ASYNC_SAK) do_SAK(tty); } } @@ -2239,7 +2231,7 @@ static void isr_rxrdy(SLMP_INFO * info) { u16 status; unsigned char DataByte; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; struct mgsl_icount *icount = &info->icount; if ( debug_level >= DEBUG_LEVEL_ISR ) @@ -2352,7 +2344,7 @@ static void isr_txeom(SLMP_INFO * info, unsigned char status) else #endif { - if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) { + if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { tx_stop(info); return; } @@ -2407,7 +2399,7 @@ static void isr_txrdy(SLMP_INFO * info) return; } - if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) { + if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { tx_stop(info); return; } @@ -2554,29 +2546,29 @@ static void isr_io_pin( SLMP_INFO *info, u16 status ) wake_up_interruptible(&info->status_event_wait_q); wake_up_interruptible(&info->event_wait_q); - if ( (info->flags & ASYNC_CHECK_CD) && + if ( (info->port.flags & ASYNC_CHECK_CD) && (status & MISCSTATUS_DCD_LATCHED) ) { if ( debug_level >= DEBUG_LEVEL_ISR ) printk("%s CD now %s...", info->device_name, (status & SerialSignal_DCD) ? "on" : "off"); if (status & SerialSignal_DCD) - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); else { if ( debug_level >= DEBUG_LEVEL_ISR ) printk("doing serial hangup..."); - if (info->tty) - tty_hangup(info->tty); + if (info->port.tty) + tty_hangup(info->port.tty); } } - if ( (info->flags & ASYNC_CTS_FLOW) && + if ( (info->port.flags & ASYNC_CTS_FLOW) && (status & MISCSTATUS_CTS_LATCHED) ) { - if ( info->tty ) { - if (info->tty->hw_stopped) { + if ( info->port.tty ) { + if (info->port.tty->hw_stopped) { if (status & SerialSignal_CTS) { if ( debug_level >= DEBUG_LEVEL_ISR ) printk("CTS tx start..."); - info->tty->hw_stopped = 0; + info->port.tty->hw_stopped = 0; tx_start(info); info->pending_bh |= BH_TRANSMIT; return; @@ -2585,7 +2577,7 @@ static void isr_io_pin( SLMP_INFO *info, u16 status ) if (!(status & SerialSignal_CTS)) { if ( debug_level >= DEBUG_LEVEL_ISR ) printk("CTS tx stop..."); - info->tty->hw_stopped = 1; + info->port.tty->hw_stopped = 1; tx_stop(info); } } @@ -2701,7 +2693,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id) * do not request bottom half processing if the * device is not open in a normal mode. */ - if ( port && (port->count || port->netcount) && + if ( port && (port->port.count || port->netcount) && port->pending_bh && !port->bh_running && !port->bh_requested ) { if ( debug_level >= DEBUG_LEVEL_ISR ) @@ -2727,7 +2719,7 @@ static int startup(SLMP_INFO * info) if ( debug_level >= DEBUG_LEVEL_INFO ) printk("%s(%d):%s tx_releaseup()\n",__FILE__,__LINE__,info->device_name); - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) return 0; if (!info->tx_buf) { @@ -2750,10 +2742,10 @@ static int startup(SLMP_INFO * info) mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10)); - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; return 0; } @@ -2764,7 +2756,7 @@ static void shutdown(SLMP_INFO * info) { unsigned long flags; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; if (debug_level >= DEBUG_LEVEL_INFO) @@ -2786,17 +2778,17 @@ static void shutdown(SLMP_INFO * info) reset_port(info); - if (!info->tty || info->tty->termios->c_cflag & HUPCL) { + if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) { info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS); set_signals(info); } spin_unlock_irqrestore(&info->lock,flags); - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; } static void program_hw(SLMP_INFO *info) @@ -2827,7 +2819,7 @@ static void program_hw(SLMP_INFO *info) get_signals(info); - if (info->netcount || (info->tty && info->tty->termios->c_cflag & CREAD) ) + if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) ) rx_start(info); spin_unlock_irqrestore(&info->lock,flags); @@ -2840,14 +2832,14 @@ static void change_params(SLMP_INFO *info) unsigned cflag; int bits_per_char; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return; if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):%s change_params()\n", __FILE__,__LINE__, info->device_name ); - cflag = info->tty->termios->c_cflag; + cflag = info->port.tty->termios->c_cflag; /* if B0 rate (hangup) specified then negate DTR and RTS */ /* otherwise assert DTR and RTS */ @@ -2895,7 +2887,7 @@ static void change_params(SLMP_INFO *info) * current data rate. */ if (info->params.data_rate <= 460800) { - info->params.data_rate = tty_get_baud_rate(info->tty); + info->params.data_rate = tty_get_baud_rate(info->port.tty); } if ( info->params.data_rate ) { @@ -2905,30 +2897,30 @@ static void change_params(SLMP_INFO *info) info->timeout += HZ/50; /* Add .02 seconds of slop */ if (cflag & CRTSCTS) - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; else - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; if (cflag & CLOCAL) - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; else - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; /* process tty input control flags */ info->read_status_mask2 = OVRN; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask2 |= PE | FRME; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask1 |= BRKD; - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask2 |= PE | FRME; - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask1 |= BRKD; /* If ignoring parity and break indicators, ignore * overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) + if (I_IGNPAR(info->port.tty)) info->ignore_status_mask2 |= OVRN; } @@ -3348,7 +3340,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){ /* nonblock mode is set or port is not enabled */ /* just verify that callout device is not active */ - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -3357,25 +3349,25 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, /* Wait for carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that + * this loop, info->port.count is dropped by one, so that * close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&info->open_wait, &wait); + add_wait_queue(&info->port.open_wait, &wait); if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):%s block_til_ready() before block, count=%d\n", - __FILE__,__LINE__, tty->driver->name, info->count ); + __FILE__,__LINE__, tty->driver->name, info->port.count ); spin_lock_irqsave(&info->lock, flags); if (!tty_hung_up_p(filp)) { extra_count = true; - info->count--; + info->port.count--; } spin_unlock_irqrestore(&info->lock, flags); - info->blocked_open++; + info->port.blocked_open++; while (1) { if ((tty->termios->c_cflag & CBAUD)) { @@ -3387,8 +3379,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){ - retval = (info->flags & ASYNC_HUP_NOTIFY) ? + if (tty_hung_up_p(filp) || !(info->port.flags & ASYNC_INITIALIZED)){ + retval = (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS; break; } @@ -3397,7 +3389,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, get_signals(info); spin_unlock_irqrestore(&info->lock,flags); - if (!(info->flags & ASYNC_CLOSING) && + if (!(info->port.flags & ASYNC_CLOSING) && (do_clocal || (info->serial_signals & SerialSignal_DCD)) ) { break; } @@ -3409,24 +3401,24 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):%s block_til_ready() count=%d\n", - __FILE__,__LINE__, tty->driver->name, info->count ); + __FILE__,__LINE__, tty->driver->name, info->port.count ); schedule(); } set_current_state(TASK_RUNNING); - remove_wait_queue(&info->open_wait, &wait); + remove_wait_queue(&info->port.open_wait, &wait); if (extra_count) - info->count++; - info->blocked_open--; + info->port.count++; + info->port.blocked_open--; if (debug_level >= DEBUG_LEVEL_INFO) printk("%s(%d):%s block_til_ready() after, count=%d\n", - __FILE__,__LINE__, tty->driver->name, info->count ); + __FILE__,__LINE__, tty->driver->name, info->port.count ); if (!retval) - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return retval; } @@ -3808,13 +3800,12 @@ static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev) printk("%s(%d) Error can't allocate device instance data for adapter %d, port %d\n", __FILE__,__LINE__, adapter_num, port_num); } else { + tty_port_init(&info->port); info->magic = MGSL_MAGIC; INIT_WORK(&info->task, bh_handler); info->max_frame_size = 4096; - info->close_delay = 5*HZ/10; - info->closing_wait = 30*HZ; - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + info->port.close_delay = 5*HZ/10; + info->port.closing_wait = 30*HZ; init_waitqueue_head(&info->status_event_wait_q); init_waitqueue_head(&info->event_wait_q); spin_lock_init(&info->netlock); @@ -4885,7 +4876,7 @@ static bool rx_get_frame(SLMP_INFO *info) unsigned int framesize = 0; bool ReturnCode = false; unsigned long flags; - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; unsigned char addr_field = 0xff; SCADESC *desc; SCADESC_EX *desc_ex; @@ -4983,9 +4974,8 @@ CheckAgain: framesize = 0; #if SYNCLINK_GENERIC_HDLC { - struct net_device_stats *stats = hdlc_stats(info->netdev); - stats->rx_errors++; - stats->rx_frame_errors++; + info->netdev->stats.rx_errors++; + info->netdev->stats.rx_frame_errors++; } #endif } @@ -5293,11 +5283,11 @@ static bool loopback_test(SLMP_INFO *info) bool rc = false; unsigned long flags; - struct tty_struct *oldtty = info->tty; + struct tty_struct *oldtty = info->port.tty; u32 speed = info->params.clock_speed; info->params.clock_speed = 3686400; - info->tty = NULL; + info->port.tty = NULL; /* assume failure */ info->init_error = DiagStatus_DmaFailure; @@ -5341,7 +5331,7 @@ static bool loopback_test(SLMP_INFO *info) spin_unlock_irqrestore(&info->lock,flags); info->params.clock_speed = speed; - info->tty = oldtty; + info->port.tty = oldtty; return rc; } diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index 047a17339f8..82f6a8c8633 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -95,8 +95,9 @@ #include <linux/wait.h> #include <linux/bitops.h> #include <linux/delay.h> +#include <linux/seq_file.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/system.h> #include <linux/kbd_kern.h> @@ -682,7 +683,7 @@ static void tty_set_termios_ldisc(struct tty_struct *tty, int num) static DEFINE_SPINLOCK(tty_ldisc_lock); static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait); /* Line disc dispatch table */ -static struct tty_ldisc tty_ldiscs[NR_LDISCS]; +static struct tty_ldisc_ops *tty_ldiscs[NR_LDISCS]; /** * tty_register_ldisc - install a line discipline @@ -697,7 +698,7 @@ static struct tty_ldisc tty_ldiscs[NR_LDISCS]; * takes tty_ldisc_lock to guard against ldisc races */ -int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc) +int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc) { unsigned long flags; int ret = 0; @@ -706,10 +707,9 @@ int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc) return -EINVAL; spin_lock_irqsave(&tty_ldisc_lock, flags); - tty_ldiscs[disc] = *new_ldisc; - tty_ldiscs[disc].num = disc; - tty_ldiscs[disc].flags |= LDISC_FLAG_DEFINED; - tty_ldiscs[disc].refcount = 0; + tty_ldiscs[disc] = new_ldisc; + new_ldisc->num = disc; + new_ldisc->refcount = 0; spin_unlock_irqrestore(&tty_ldisc_lock, flags); return ret; @@ -737,19 +737,56 @@ int tty_unregister_ldisc(int disc) return -EINVAL; spin_lock_irqsave(&tty_ldisc_lock, flags); - if (tty_ldiscs[disc].refcount) + if (tty_ldiscs[disc]->refcount) ret = -EBUSY; else - tty_ldiscs[disc].flags &= ~LDISC_FLAG_DEFINED; + tty_ldiscs[disc] = NULL; spin_unlock_irqrestore(&tty_ldisc_lock, flags); return ret; } EXPORT_SYMBOL(tty_unregister_ldisc); + +/** + * tty_ldisc_try_get - try and reference an ldisc + * @disc: ldisc number + * @ld: tty ldisc structure to complete + * + * Attempt to open and lock a line discipline into place. Return + * the line discipline refcounted and assigned in ld. On an error + * report the error code back + */ + +static int tty_ldisc_try_get(int disc, struct tty_ldisc *ld) +{ + unsigned long flags; + struct tty_ldisc_ops *ldops; + int err = -EINVAL; + + spin_lock_irqsave(&tty_ldisc_lock, flags); + ld->ops = NULL; + ldops = tty_ldiscs[disc]; + /* Check the entry is defined */ + if (ldops) { + /* If the module is being unloaded we can't use it */ + if (!try_module_get(ldops->owner)) + err = -EAGAIN; + else { + /* lock it */ + ldops->refcount++; + ld->ops = ldops; + err = 0; + } + } + spin_unlock_irqrestore(&tty_ldisc_lock, flags); + return err; +} + /** * tty_ldisc_get - take a reference to an ldisc * @disc: ldisc number + * @ld: tty line discipline structure to use * * Takes a reference to a line discipline. Deals with refcounts and * module locking counts. Returns NULL if the discipline is not available. @@ -760,32 +797,20 @@ EXPORT_SYMBOL(tty_unregister_ldisc); * takes tty_ldisc_lock to guard against ldisc races */ -struct tty_ldisc *tty_ldisc_get(int disc) +static int tty_ldisc_get(int disc, struct tty_ldisc *ld) { - unsigned long flags; - struct tty_ldisc *ld; + int err; if (disc < N_TTY || disc >= NR_LDISCS) - return NULL; - - spin_lock_irqsave(&tty_ldisc_lock, flags); - - ld = &tty_ldiscs[disc]; - /* Check the entry is defined */ - if (ld->flags & LDISC_FLAG_DEFINED) { - /* If the module is being unloaded we can't use it */ - if (!try_module_get(ld->owner)) - ld = NULL; - else /* lock it */ - ld->refcount++; - } else - ld = NULL; - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - return ld; + return -EINVAL; + err = tty_ldisc_try_get(disc, ld); + if (err == -EAGAIN) { + request_module("tty-ldisc-%d", disc); + err = tty_ldisc_try_get(disc, ld); + } + return err; } -EXPORT_SYMBOL_GPL(tty_ldisc_get); - /** * tty_ldisc_put - drop ldisc reference * @disc: ldisc number @@ -797,22 +822,67 @@ EXPORT_SYMBOL_GPL(tty_ldisc_get); * takes tty_ldisc_lock to guard against ldisc races */ -void tty_ldisc_put(int disc) +static void tty_ldisc_put(struct tty_ldisc_ops *ld) { - struct tty_ldisc *ld; unsigned long flags; + int disc = ld->num; BUG_ON(disc < N_TTY || disc >= NR_LDISCS); spin_lock_irqsave(&tty_ldisc_lock, flags); - ld = &tty_ldiscs[disc]; + ld = tty_ldiscs[disc]; BUG_ON(ld->refcount == 0); ld->refcount--; module_put(ld->owner); spin_unlock_irqrestore(&tty_ldisc_lock, flags); } -EXPORT_SYMBOL_GPL(tty_ldisc_put); +static void * tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos) +{ + return (*pos < NR_LDISCS) ? pos : NULL; +} + +static void * tty_ldiscs_seq_next(struct seq_file *m, void *v, loff_t *pos) +{ + (*pos)++; + return (*pos < NR_LDISCS) ? pos : NULL; +} + +static void tty_ldiscs_seq_stop(struct seq_file *m, void *v) +{ +} + +static int tty_ldiscs_seq_show(struct seq_file *m, void *v) +{ + int i = *(loff_t *)v; + struct tty_ldisc ld; + + if (tty_ldisc_get(i, &ld) < 0) + return 0; + seq_printf(m, "%-10s %2d\n", ld.ops->name ? ld.ops->name : "???", i); + tty_ldisc_put(ld.ops); + return 0; +} + +static const struct seq_operations tty_ldiscs_seq_ops = { + .start = tty_ldiscs_seq_start, + .next = tty_ldiscs_seq_next, + .stop = tty_ldiscs_seq_stop, + .show = tty_ldiscs_seq_show, +}; + +static int proc_tty_ldiscs_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &tty_ldiscs_seq_ops); +} + +const struct file_operations tty_ldiscs_proc_fops = { + .owner = THIS_MODULE, + .open = proc_tty_ldiscs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; /** * tty_ldisc_assign - set ldisc on a tty @@ -829,8 +899,8 @@ EXPORT_SYMBOL_GPL(tty_ldisc_put); static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) { + ld->refcount = 0; tty->ldisc = *ld; - tty->ldisc.refcount = 0; } /** @@ -954,6 +1024,41 @@ static void tty_ldisc_enable(struct tty_struct *tty) } /** + * tty_ldisc_restore - helper for tty ldisc change + * @tty: tty to recover + * @old: previous ldisc + * + * Restore the previous line discipline or N_TTY when a line discipline + * change fails due to an open error + */ + +static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old) +{ + char buf[64]; + struct tty_ldisc new_ldisc; + + /* There is an outstanding reference here so this is safe */ + tty_ldisc_get(old->ops->num, old); + tty_ldisc_assign(tty, old); + tty_set_termios_ldisc(tty, old->ops->num); + if (old->ops->open && (old->ops->open(tty) < 0)) { + tty_ldisc_put(old->ops); + /* This driver is always present */ + if (tty_ldisc_get(N_TTY, &new_ldisc) < 0) + panic("n_tty: get"); + tty_ldisc_assign(tty, &new_ldisc); + tty_set_termios_ldisc(tty, N_TTY); + if (new_ldisc.ops->open) { + int r = new_ldisc.ops->open(tty); + if (r < 0) + panic("Couldn't open N_TTY ldisc for " + "%s --- error %d.", + tty_name(tty, buf), r); + } + } +} + +/** * tty_set_ldisc - set line discipline * @tty: the terminal to set * @ldisc: the line discipline @@ -967,28 +1072,18 @@ static void tty_ldisc_enable(struct tty_struct *tty) static int tty_set_ldisc(struct tty_struct *tty, int ldisc) { - int retval = 0; - struct tty_ldisc o_ldisc; - char buf[64]; + int retval; + struct tty_ldisc o_ldisc, new_ldisc; int work; unsigned long flags; - struct tty_ldisc *ld; struct tty_struct *o_tty; - if ((ldisc < N_TTY) || (ldisc >= NR_LDISCS)) - return -EINVAL; - restart: - - ld = tty_ldisc_get(ldisc); - /* Eduardo Blanco <ejbs@cs.cs.com.uy> */ - /* Cyrus Durgin <cider@speakeasy.org> */ - if (ld == NULL) { - request_module("tty-ldisc-%d", ldisc); - ld = tty_ldisc_get(ldisc); - } - if (ld == NULL) - return -EINVAL; + /* This is a bit ugly for now but means we can break the 'ldisc + is part of the tty struct' assumption later */ + retval = tty_ldisc_get(ldisc, &new_ldisc); + if (retval) + return retval; /* * Problem: What do we do if this blocks ? @@ -996,8 +1091,8 @@ restart: tty_wait_until_sent(tty, 0); - if (tty->ldisc.num == ldisc) { - tty_ldisc_put(ldisc); + if (tty->ldisc.ops->num == ldisc) { + tty_ldisc_put(new_ldisc.ops); return 0; } @@ -1024,7 +1119,7 @@ restart: /* Free the new ldisc we grabbed. Must drop the lock first. */ spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(ldisc); + tty_ldisc_put(o_ldisc.ops); /* * There are several reasons we may be busy, including * random momentary I/O traffic. We must therefore @@ -1038,7 +1133,7 @@ restart: } if (o_tty && o_tty->ldisc.refcount) { spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(ldisc); + tty_ldisc_put(o_tty->ldisc.ops); if (wait_event_interruptible(tty_ldisc_wait, o_tty->ldisc.refcount == 0) < 0) return -ERESTARTSYS; goto restart; @@ -1049,8 +1144,9 @@ restart: * another ldisc change */ if (!test_bit(TTY_LDISC, &tty->flags)) { + struct tty_ldisc *ld; spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(ldisc); + tty_ldisc_put(new_ldisc.ops); ld = tty_ldisc_ref_wait(tty); tty_ldisc_deref(ld); goto restart; @@ -1060,7 +1156,7 @@ restart: if (o_tty) clear_bit(TTY_LDISC, &o_tty->flags); spin_unlock_irqrestore(&tty_ldisc_lock, flags); - + /* * From this point on we know nobody has an ldisc * usage reference, nor can they obtain one until @@ -1070,45 +1166,30 @@ restart: work = cancel_delayed_work(&tty->buf.work); /* * Wait for ->hangup_work and ->buf.work handlers to terminate + * MUST NOT hold locks here. */ flush_scheduled_work(); /* Shutdown the current discipline. */ - if (tty->ldisc.close) - (tty->ldisc.close)(tty); + if (o_ldisc.ops->close) + (o_ldisc.ops->close)(tty); /* Now set up the new line discipline. */ - tty_ldisc_assign(tty, ld); + tty_ldisc_assign(tty, &new_ldisc); tty_set_termios_ldisc(tty, ldisc); - if (tty->ldisc.open) - retval = (tty->ldisc.open)(tty); + if (new_ldisc.ops->open) + retval = (new_ldisc.ops->open)(tty); if (retval < 0) { - tty_ldisc_put(ldisc); - /* There is an outstanding reference here so this is safe */ - tty_ldisc_assign(tty, tty_ldisc_get(o_ldisc.num)); - tty_set_termios_ldisc(tty, tty->ldisc.num); - if (tty->ldisc.open && (tty->ldisc.open(tty) < 0)) { - tty_ldisc_put(o_ldisc.num); - /* This driver is always present */ - tty_ldisc_assign(tty, tty_ldisc_get(N_TTY)); - tty_set_termios_ldisc(tty, N_TTY); - if (tty->ldisc.open) { - int r = tty->ldisc.open(tty); - - if (r < 0) - panic("Couldn't open N_TTY ldisc for " - "%s --- error %d.", - tty_name(tty, buf), r); - } - } + tty_ldisc_put(new_ldisc.ops); + tty_ldisc_restore(tty, &o_ldisc); } /* At this point we hold a reference to the new ldisc and a a reference to the old ldisc. If we ended up flipping back to the existing ldisc we have two references to it */ - if (tty->ldisc.num != o_ldisc.num && tty->ops->set_ldisc) + if (tty->ldisc.ops->num != o_ldisc.ops->num && tty->ops->set_ldisc) tty->ops->set_ldisc(tty); - tty_ldisc_put(o_ldisc.num); + tty_ldisc_put(o_ldisc.ops); /* * Allow ldisc referencing to occur as soon as the driver @@ -1335,8 +1416,8 @@ void tty_wakeup(struct tty_struct *tty) if (test_bit(TTY_DO_WRITE_WAKEUP, &tty->flags)) { ld = tty_ldisc_ref(tty); if (ld) { - if (ld->write_wakeup) - ld->write_wakeup(tty); + if (ld->ops->write_wakeup) + ld->ops->write_wakeup(tty); tty_ldisc_deref(ld); } } @@ -1357,8 +1438,8 @@ void tty_ldisc_flush(struct tty_struct *tty) { struct tty_ldisc *ld = tty_ldisc_ref(tty); if (ld) { - if (ld->flush_buffer) - ld->flush_buffer(tty); + if (ld->ops->flush_buffer) + ld->ops->flush_buffer(tty); tty_ldisc_deref(ld); } tty_buffer_flush(tty); @@ -1386,7 +1467,7 @@ static void tty_reset_termios(struct tty_struct *tty) * do_tty_hangup - actual handler for hangup events * @work: tty device * - * This can be called by the "eventd" kernel thread. That is process +k * This can be called by the "eventd" kernel thread. That is process * synchronous but doesn't hold any locks, so we need to make sure we * have the appropriate locks for what we're doing. * @@ -1449,14 +1530,14 @@ static void do_tty_hangup(struct work_struct *work) ld = tty_ldisc_ref(tty); if (ld != NULL) { /* We may have no line discipline at this point */ - if (ld->flush_buffer) - ld->flush_buffer(tty); + if (ld->ops->flush_buffer) + ld->ops->flush_buffer(tty); tty_driver_flush_buffer(tty); if ((test_bit(TTY_DO_WRITE_WAKEUP, &tty->flags)) && - ld->write_wakeup) - ld->write_wakeup(tty); - if (ld->hangup) - ld->hangup(tty); + ld->ops->write_wakeup) + ld->ops->write_wakeup(tty); + if (ld->ops->hangup) + ld->ops->hangup(tty); } /* * FIXME: Once we trust the LDISC code better we can wait here for @@ -1825,8 +1906,8 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count, /* We want to wait for the line discipline to sort out in this situation */ ld = tty_ldisc_ref_wait(tty); - if (ld->read) - i = (ld->read)(tty, file, buf, count); + if (ld->ops->read) + i = (ld->ops->read)(tty, file, buf, count); else i = -EIO; tty_ldisc_deref(ld); @@ -1978,10 +2059,10 @@ static ssize_t tty_write(struct file *file, const char __user *buf, printk(KERN_ERR "tty driver %s lacks a write_room method.\n", tty->driver->name); ld = tty_ldisc_ref_wait(tty); - if (!ld->write) + if (!ld->ops->write) ret = -EIO; else - ret = do_tty_write(ld->write, tty, file, buf, count); + ret = do_tty_write(ld->ops->write, tty, file, buf, count); tty_ldisc_deref(ld); return ret; } @@ -2007,6 +2088,42 @@ ssize_t redirected_tty_write(struct file *file, const char __user *buf, return tty_write(file, buf, count, ppos); } +void tty_port_init(struct tty_port *port) +{ + memset(port, 0, sizeof(*port)); + init_waitqueue_head(&port->open_wait); + init_waitqueue_head(&port->close_wait); + mutex_init(&port->mutex); + port->close_delay = (50 * HZ) / 100; + port->closing_wait = (3000 * HZ) / 100; +} +EXPORT_SYMBOL(tty_port_init); + +int tty_port_alloc_xmit_buf(struct tty_port *port) +{ + /* We may sleep in get_zeroed_page() */ + mutex_lock(&port->mutex); + if (port->xmit_buf == NULL) + port->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL); + mutex_unlock(&port->mutex); + if (port->xmit_buf == NULL) + return -ENOMEM; + return 0; +} +EXPORT_SYMBOL(tty_port_alloc_xmit_buf); + +void tty_port_free_xmit_buf(struct tty_port *port) +{ + mutex_lock(&port->mutex); + if (port->xmit_buf != NULL) { + free_page((unsigned long)port->xmit_buf); + port->xmit_buf = NULL; + } + mutex_unlock(&port->mutex); +} +EXPORT_SYMBOL(tty_port_free_xmit_buf); + + static char ptychar[] = "pqrstuvwxyzabcde"; /** @@ -2076,6 +2193,7 @@ static int init_dev(struct tty_driver *driver, int idx, struct ktermios *tp, **tp_loc, *o_tp, **o_tp_loc; struct ktermios *ltp, **ltp_loc, *o_ltp, **o_ltp_loc; int retval = 0; + struct tty_ldisc *ld; /* check whether we're reopening an existing tty */ if (driver->flags & TTY_DRIVER_DEVPTS_MEM) { @@ -2224,17 +2342,19 @@ static int init_dev(struct tty_driver *driver, int idx, * If we fail here just call release_tty to clean up. No need * to decrement the use counts, as release_tty doesn't care. */ + + ld = &tty->ldisc; - if (tty->ldisc.open) { - retval = (tty->ldisc.open)(tty); + if (ld->ops->open) { + retval = (ld->ops->open)(tty); if (retval) goto release_mem_out; } - if (o_tty && o_tty->ldisc.open) { - retval = (o_tty->ldisc.open)(o_tty); + if (o_tty && o_tty->ldisc.ops->open) { + retval = (o_tty->ldisc.ops->open)(o_tty); if (retval) { - if (tty->ldisc.close) - (tty->ldisc.close)(tty); + if (ld->ops->close) + (ld->ops->close)(tty); goto release_mem_out; } tty_ldisc_enable(o_tty); @@ -2378,6 +2498,7 @@ static void release_tty(struct tty_struct *tty, int idx) static void release_dev(struct file *filp) { struct tty_struct *tty, *o_tty; + struct tty_ldisc ld; int pty_master, tty_closing, o_tty_closing, do_sleep; int devpts; int idx; @@ -2611,26 +2732,27 @@ static void release_dev(struct file *filp) spin_unlock_irqrestore(&tty_ldisc_lock, flags); /* * Shutdown the current line discipline, and reset it to N_TTY. - * N.B. why reset ldisc when we're releasing the memory?? * * FIXME: this MUST get fixed for the new reflocking */ - if (tty->ldisc.close) - (tty->ldisc.close)(tty); - tty_ldisc_put(tty->ldisc.num); + if (tty->ldisc.ops->close) + (tty->ldisc.ops->close)(tty); + tty_ldisc_put(tty->ldisc.ops); /* * Switch the line discipline back */ - tty_ldisc_assign(tty, tty_ldisc_get(N_TTY)); + WARN_ON(tty_ldisc_get(N_TTY, &ld)); + tty_ldisc_assign(tty, &ld); tty_set_termios_ldisc(tty, N_TTY); if (o_tty) { /* FIXME: could o_tty be in setldisc here ? */ clear_bit(TTY_LDISC, &o_tty->flags); - if (o_tty->ldisc.close) - (o_tty->ldisc.close)(o_tty); - tty_ldisc_put(o_tty->ldisc.num); - tty_ldisc_assign(o_tty, tty_ldisc_get(N_TTY)); + if (o_tty->ldisc.ops->close) + (o_tty->ldisc.ops->close)(o_tty); + tty_ldisc_put(o_tty->ldisc.ops); + WARN_ON(tty_ldisc_get(N_TTY, &ld)); + tty_ldisc_assign(o_tty, &ld); tty_set_termios_ldisc(o_tty, N_TTY); } /* @@ -2899,8 +3021,8 @@ static unsigned int tty_poll(struct file *filp, poll_table *wait) return 0; ld = tty_ldisc_ref_wait(tty); - if (ld->poll) - ret = (ld->poll)(tty, filp, wait); + if (ld->ops->poll) + ret = (ld->ops->poll)(tty, filp, wait); tty_ldisc_deref(ld); return ret; } @@ -2974,7 +3096,7 @@ static int tiocsti(struct tty_struct *tty, char __user *p) if (get_user(ch, p)) return -EFAULT; ld = tty_ldisc_ref_wait(tty); - ld->receive_buf(tty, &ch, &mbz, 1); + ld->ops->receive_buf(tty, &ch, &mbz, 1); tty_ldisc_deref(ld); return 0; } @@ -3395,35 +3517,31 @@ static int tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p static int tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned __user *p) { - int retval = -EINVAL; - - if (tty->ops->tiocmset) { - unsigned int set, clear, val; - - retval = get_user(val, p); - if (retval) - return retval; - - set = clear = 0; - switch (cmd) { - case TIOCMBIS: - set = val; - break; - case TIOCMBIC: - clear = val; - break; - case TIOCMSET: - set = val; - clear = ~val; - break; - } + int retval; + unsigned int set, clear, val; - set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP; - clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP; + if (tty->ops->tiocmset == NULL) + return -EINVAL; - retval = tty->ops->tiocmset(tty, file, set, clear); + retval = get_user(val, p); + if (retval) + return retval; + set = clear = 0; + switch (cmd) { + case TIOCMBIS: + set = val; + break; + case TIOCMBIC: + clear = val; + break; + case TIOCMSET: + set = val; + clear = ~val; + break; } - return retval; + set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP; + clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP; + return tty->ops->tiocmset(tty, file, set, clear); } /* @@ -3528,7 +3646,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case TIOCGSID: return tiocgsid(tty, real_tty, p); case TIOCGETD: - return put_user(tty->ldisc.num, (int __user *)p); + return put_user(tty->ldisc.ops->num, (int __user *)p); case TIOCSETD: return tiocsetd(tty, p); #ifdef CONFIG_VT @@ -3581,8 +3699,8 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } ld = tty_ldisc_ref_wait(tty); retval = -EINVAL; - if (ld->ioctl) { - retval = ld->ioctl(tty, file, cmd, arg); + if (ld->ops->ioctl) { + retval = ld->ops->ioctl(tty, file, cmd, arg); if (retval == -ENOIOCTLCMD) retval = -EINVAL; } @@ -3609,8 +3727,8 @@ static long tty_compat_ioctl(struct file *file, unsigned int cmd, } ld = tty_ldisc_ref_wait(tty); - if (ld->compat_ioctl) - retval = ld->compat_ioctl(tty, file, cmd, arg); + if (ld->ops->compat_ioctl) + retval = ld->ops->compat_ioctl(tty, file, cmd, arg); tty_ldisc_deref(ld); return retval; @@ -3782,7 +3900,8 @@ static void flush_to_ldisc(struct work_struct *work) flag_buf = head->flag_buf_ptr + head->read; head->read += count; spin_unlock_irqrestore(&tty->buf.lock, flags); - disc->receive_buf(tty, char_buf, flag_buf, count); + disc->ops->receive_buf(tty, char_buf, + flag_buf, count); spin_lock_irqsave(&tty->buf.lock, flags); } /* Restore the queue head */ @@ -3843,9 +3962,12 @@ EXPORT_SYMBOL(tty_flip_buffer_push); static void initialize_tty_struct(struct tty_struct *tty) { + struct tty_ldisc ld; memset(tty, 0, sizeof(struct tty_struct)); tty->magic = TTY_MAGIC; - tty_ldisc_assign(tty, tty_ldisc_get(N_TTY)); + if (tty_ldisc_get(N_TTY, &ld) < 0) + panic("n_tty: init_tty"); + tty_ldisc_assign(tty, &ld); tty->session = NULL; tty->pgrp = NULL; tty->overrun_time = jiffies; diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c index 8f81139d619..ea9fc5d03b9 100644 --- a/drivers/char/tty_ioctl.c +++ b/drivers/char/tty_ioctl.c @@ -491,8 +491,8 @@ static void change_termios(struct tty_struct *tty, struct ktermios *new_termios) ld = tty_ldisc_ref(tty); if (ld != NULL) { - if (ld->set_termios) - (ld->set_termios)(tty, &old_termios); + if (ld->ops->set_termios) + (ld->ops->set_termios)(tty, &old_termios); tty_ldisc_deref(ld); } mutex_unlock(&tty->termios_mutex); @@ -552,8 +552,8 @@ static int set_termios(struct tty_struct *tty, void __user *arg, int opt) ld = tty_ldisc_ref(tty); if (ld != NULL) { - if ((opt & TERMIOS_FLUSH) && ld->flush_buffer) - ld->flush_buffer(tty); + if ((opt & TERMIOS_FLUSH) && ld->ops->flush_buffer) + ld->ops->flush_buffer(tty); tty_ldisc_deref(ld); } @@ -959,12 +959,12 @@ int tty_perform_flush(struct tty_struct *tty, unsigned long arg) ld = tty_ldisc_ref(tty); switch (arg) { case TCIFLUSH: - if (ld && ld->flush_buffer) - ld->flush_buffer(tty); + if (ld && ld->ops->flush_buffer) + ld->ops->flush_buffer(tty); break; case TCIOFLUSH: - if (ld && ld->flush_buffer) - ld->flush_buffer(tty); + if (ld && ld->ops->flush_buffer) + ld->ops->flush_buffer(tty); /* fall through */ case TCOFLUSH: tty_driver_flush_buffer(tty); |