diff options
Diffstat (limited to 'drivers/char/riscom8.c')
| -rw-r--r-- | drivers/char/riscom8.c | 1560 |
1 files changed, 0 insertions, 1560 deletions
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c deleted file mode 100644 index af4de1fe844..00000000000 --- a/drivers/char/riscom8.c +++ /dev/null @@ -1,1560 +0,0 @@ -/* - * linux/drivers/char/riscom.c -- RISCom/8 multiport serial driver. - * - * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com) - * - * This code is loosely based on the Linux serial driver, written by - * Linus Torvalds, Theodore T'so and others. The RISCom/8 card - * programming info was obtained from various drivers for other OSes - * (FreeBSD, ISC, etc), but no source code from those drivers were - * directly included in this driver. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Revision 1.1 - * - * ChangeLog: - * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 27-Jun-2001 - * - get rid of check_region and several cleanups - */ - -#include <linux/module.h> - -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/errno.h> -#include <linux/tty.h> -#include <linux/mm.h> -#include <linux/serial.h> -#include <linux/fcntl.h> -#include <linux/major.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/tty_flip.h> -#include <linux/spinlock.h> -#include <linux/device.h> - -#include <linux/uaccess.h> - -#include "riscom8.h" -#include "riscom8_reg.h" - -/* Am I paranoid or not ? ;-) */ -#define RISCOM_PARANOIA_CHECK - -/* - * Crazy InteliCom/8 boards sometimes have swapped CTS & DSR signals. - * You can slightly speed up things by #undefing the following option, - * if you are REALLY sure that your board is correct one. - */ - -#define RISCOM_BRAIN_DAMAGED_CTS - -/* - * The following defines are mostly for testing purposes. But if you need - * some nice reporting in your syslog, you can define them also. - */ -#undef RC_REPORT_FIFO -#undef RC_REPORT_OVERRUN - - -#define RISCOM_LEGAL_FLAGS \ - (ASYNC_HUP_NOTIFY | ASYNC_SAK | ASYNC_SPLIT_TERMIOS | \ - ASYNC_SPD_HI | ASYNC_SPEED_VHI | ASYNC_SESSION_LOCKOUT | \ - ASYNC_PGRP_LOCKOUT | ASYNC_CALLOUT_NOHUP) - -static struct tty_driver *riscom_driver; - -static DEFINE_SPINLOCK(riscom_lock); - -static struct riscom_board rc_board[RC_NBOARD] = { - { - .base = RC_IOBASE1, - }, - { - .base = RC_IOBASE2, - }, - { - .base = RC_IOBASE3, - }, - { - .base = RC_IOBASE4, - }, -}; - -static struct riscom_port rc_port[RC_NBOARD * RC_NPORT]; - -/* RISCom/8 I/O ports addresses (without address translation) */ -static unsigned short rc_ioport[] = { -#if 1 - 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c, -#else - 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c, 0x10, - 0x11, 0x12, 0x18, 0x28, 0x31, 0x32, 0x39, 0x3a, 0x40, 0x41, 0x61, 0x62, - 0x63, 0x64, 0x6b, 0x70, 0x71, 0x78, 0x7a, 0x7b, 0x7f, 0x100, 0x101 -#endif -}; -#define RC_NIOPORT ARRAY_SIZE(rc_ioport) - - -static int rc_paranoia_check(struct riscom_port const *port, - char *name, const char *routine) -{ -#ifdef RISCOM_PARANOIA_CHECK - static const char badmagic[] = KERN_INFO - "rc: Warning: bad riscom port magic number for device %s in %s\n"; - static const char badinfo[] = KERN_INFO - "rc: Warning: null riscom port for device %s in %s\n"; - - if (!port) { - printk(badinfo, name, routine); - return 1; - } - if (port->magic != RISCOM8_MAGIC) { - printk(badmagic, name, routine); - return 1; - } -#endif - return 0; -} - -/* - * - * Service functions for RISCom/8 driver. - * - */ - -/* Get board number from pointer */ -static inline int board_No(struct riscom_board const *bp) -{ - return bp - rc_board; -} - -/* Get port number from pointer */ -static inline int port_No(struct riscom_port const *port) -{ - return RC_PORT(port - rc_port); -} - -/* Get pointer to board from pointer to port */ -static inline struct riscom_board *port_Board(struct riscom_port const *port) -{ - return &rc_board[RC_BOARD(port - rc_port)]; -} - -/* Input Byte from CL CD180 register */ -static inline unsigned char rc_in(struct riscom_board const *bp, - unsigned short reg) -{ - return inb(bp->base + RC_TO_ISA(reg)); -} - -/* Output Byte to CL CD180 register */ -static inline void rc_out(struct riscom_board const *bp, unsigned short reg, - unsigned char val) -{ - outb(val, bp->base + RC_TO_ISA(reg)); -} - -/* Wait for Channel Command Register ready */ -static void rc_wait_CCR(struct riscom_board const *bp) -{ - unsigned long delay; - - /* FIXME: need something more descriptive then 100000 :) */ - for (delay = 100000; delay; delay--) - if (!rc_in(bp, CD180_CCR)) - return; - - printk(KERN_INFO "rc%d: Timeout waiting for CCR.\n", board_No(bp)); -} - -/* - * RISCom/8 probe functions. - */ - -static int rc_request_io_range(struct riscom_board * const bp) -{ - int i; - - for (i = 0; i < RC_NIOPORT; i++) - if (!request_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1, - "RISCom/8")) { - goto out_release; - } - return 0; -out_release: - printk(KERN_INFO "rc%d: Skipping probe at 0x%03x. IO address in use.\n", - board_No(bp), bp->base); - while (--i >= 0) - release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1); - return 1; -} - -static void rc_release_io_range(struct riscom_board * const bp) -{ - int i; - - for (i = 0; i < RC_NIOPORT; i++) - release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1); -} - -/* Reset and setup CD180 chip */ -static void __init rc_init_CD180(struct riscom_board const *bp) -{ - unsigned long flags; - - spin_lock_irqsave(&riscom_lock, flags); - - rc_out(bp, RC_CTOUT, 0); /* Clear timeout */ - rc_wait_CCR(bp); /* Wait for CCR ready */ - rc_out(bp, CD180_CCR, CCR_HARDRESET); /* Reset CD180 chip */ - spin_unlock_irqrestore(&riscom_lock, flags); - msleep(50); /* Delay 0.05 sec */ - spin_lock_irqsave(&riscom_lock, flags); - rc_out(bp, CD180_GIVR, RC_ID); /* Set ID for this chip */ - rc_out(bp, CD180_GICR, 0); /* Clear all bits */ - rc_out(bp, CD180_PILR1, RC_ACK_MINT); /* Prio for modem intr */ - rc_out(bp, CD180_PILR2, RC_ACK_TINT); /* Prio for tx intr */ - rc_out(bp, CD180_PILR3, RC_ACK_RINT); /* Prio for rx intr */ - - /* Setting up prescaler. We need 4 ticks per 1 ms */ - rc_out(bp, CD180_PPRH, (RC_OSCFREQ/(1000000/RISCOM_TPS)) >> 8); - rc_out(bp, CD180_PPRL, (RC_OSCFREQ/(1000000/RISCOM_TPS)) & 0xff); - - spin_unlock_irqrestore(&riscom_lock, flags); -} - -/* Main probing routine, also sets irq. */ -static int __init rc_probe(struct riscom_board *bp) -{ - unsigned char val1, val2; - int irqs = 0; - int retries; - - bp->irq = 0; - - if (rc_request_io_range(bp)) - return 1; - - /* Are the I/O ports here ? */ - rc_out(bp, CD180_PPRL, 0x5a); - outb(0xff, 0x80); - val1 = rc_in(bp, CD180_PPRL); - rc_out(bp, CD180_PPRL, 0xa5); - outb(0x00, 0x80); - val2 = rc_in(bp, CD180_PPRL); - - if ((val1 != 0x5a) || (val2 != 0xa5)) { - printk(KERN_ERR "rc%d: RISCom/8 Board at 0x%03x not found.\n", - board_No(bp), bp->base); - goto out_release; - } - - /* It's time to find IRQ for this board */ - for (retries = 0; retries < 5 && irqs <= 0; retries++) { - irqs = probe_irq_on(); - rc_init_CD180(bp); /* Reset CD180 chip */ - rc_out(bp, CD180_CAR, 2); /* Select port 2 */ - rc_wait_CCR(bp); - rc_out(bp, CD180_CCR, CCR_TXEN); /* Enable transmitter */ - rc_out(bp, CD180_IER, IER_TXRDY);/* Enable tx empty intr */ - msleep(50); - irqs = probe_irq_off(irqs); - val1 = rc_in(bp, RC_BSR); /* Get Board Status reg */ - val2 = rc_in(bp, RC_ACK_TINT); /* ACK interrupt */ - rc_init_CD180(bp); /* Reset CD180 again */ - - if ((val1 & RC_BSR_TINT) || (val2 != (RC_ID | GIVR_IT_TX))) { - printk(KERN_ERR "rc%d: RISCom/8 Board at 0x%03x not " - "found.\n", board_No(bp), bp->base); - goto out_release; - } - } - - if (irqs <= 0) { - printk(KERN_ERR "rc%d: Can't find IRQ for RISCom/8 board " - "at 0x%03x.\n", board_No(bp), bp->base); - goto out_release; - } - bp->irq = irqs; - bp->flags |= RC_BOARD_PRESENT; - - printk(KERN_INFO "rc%d: RISCom/8 Rev. %c board detected at " - "0x%03x, IRQ %d.\n", - board_No(bp), - (rc_in(bp, CD180_GFRCR) & 0x0f) + 'A', /* Board revision */ - bp->base, bp->irq); - - return 0; -out_release: - rc_release_io_range(bp); - return 1; -} - -/* - * - * Interrupt processing routines. - * - */ - -static struct riscom_port *rc_get_port(struct riscom_board const *bp, - unsigned char const *what) -{ - unsigned char channel; - struct riscom_port *port; - - channel = rc_in(bp, CD180_GICR) >> GICR_CHAN_OFF; - if (channel < CD180_NCH) { - port = &rc_port[board_No(bp) * RC_NPORT + channel]; - if (port->port.flags & ASYNC_INITIALIZED) - return port; - } - printk(KERN_ERR "rc%d: %s interrupt from invalid port %d\n", - board_No(bp), what, channel); - return NULL; -} - -static void rc_receive_exc(struct riscom_board const *bp) -{ - struct riscom_port *port; - struct tty_struct *tty; - unsigned char status; - unsigned char ch, flag; - - port = rc_get_port(bp, "Receive"); - if (port == NULL) - return; - - tty = tty_port_tty_get(&port->port); - -#ifdef RC_REPORT_OVERRUN - status = rc_in(bp, CD180_RCSR); - if (status & RCSR_OE) - port->overrun++; - status &= port->mark_mask; -#else - status = rc_in(bp, CD180_RCSR) & port->mark_mask; -#endif - ch = rc_in(bp, CD180_RDR); - if (!status) - goto out; - if (status & RCSR_TOUT) { - printk(KERN_WARNING "rc%d: port %d: Receiver timeout. " - "Hardware problems ?\n", - board_No(bp), port_No(port)); - goto out; - - } else if (status & RCSR_BREAK) { - printk(KERN_INFO "rc%d: port %d: Handling break...\n", - board_No(bp), port_No(port)); - flag = TTY_BREAK; - if (tty && (port->port.flags & ASYNC_SAK)) - do_SAK(tty); - - } else if (status & RCSR_PE) - flag = TTY_PARITY; - - else if (status & RCSR_FE) - flag = TTY_FRAME; - - else if (status & RCSR_OE) - flag = TTY_OVERRUN; - else - flag = TTY_NORMAL; - - if (tty) { - tty_insert_flip_char(tty, ch, flag); - tty_flip_buffer_push(tty); - } -out: - tty_kref_put(tty); -} - -static void rc_receive(struct riscom_board const *bp) -{ - struct riscom_port *port; - struct tty_struct *tty; - unsigned char count; - - port = rc_get_port(bp, "Receive"); - if (port == NULL) - return; - - tty = tty_port_tty_get(&port->port); - - count = rc_in(bp, CD180_RDCR); - -#ifdef RC_REPORT_FIFO - port->hits[count > 8 ? 9 : count]++; -#endif - - while (count--) { - u8 ch = rc_in(bp, CD180_RDR); - if (tty) - tty_insert_flip_char(tty, ch, TTY_NORMAL); - } - if (tty) { - tty_flip_buffer_push(tty); - tty_kref_put(tty); - } -} - -static void rc_transmit(struct riscom_board const *bp) -{ - struct riscom_port *port; - struct tty_struct *tty; - unsigned char count; - - port = rc_get_port(bp, "Transmit"); - if (port == NULL) - return; - - tty = tty_port_tty_get(&port->port); - - if (port->IER & IER_TXEMPTY) { - /* FIFO drained */ - rc_out(bp, CD180_CAR, port_No(port)); - port->IER &= ~IER_TXEMPTY; - rc_out(bp, CD180_IER, port->IER); - goto out; - } - - if ((port->xmit_cnt <= 0 && !port->break_length) - || (tty && (tty->stopped || tty->hw_stopped))) { - rc_out(bp, CD180_CAR, port_No(port)); - port->IER &= ~IER_TXRDY; - rc_out(bp, CD180_IER, port->IER); - goto out; - } - - if (port->break_length) { - if (port->break_length > 0) { - if (port->COR2 & COR2_ETC) { - rc_out(bp, CD180_TDR, CD180_C_ESC); - rc_out(bp, CD180_TDR, CD180_C_SBRK); - port->COR2 &= ~COR2_ETC; - } - count = min_t(int, port->break_length, 0xff); - rc_out(bp, CD180_TDR, CD180_C_ESC); - rc_out(bp, CD180_TDR, CD180_C_DELAY); - rc_out(bp, CD180_TDR, count); - port->break_length -= count; - if (port->break_length == 0) - port->break_length--; - } else { - rc_out(bp, CD180_TDR, CD180_C_ESC); - rc_out(bp, CD180_TDR, CD180_C_EBRK); - rc_out(bp, CD180_COR2, port->COR2); - rc_wait_CCR(bp); - rc_out(bp, CD180_CCR, CCR_CORCHG2); - port->break_length = 0; - } - goto out; - } - - count = CD180_NFIFO; - do { - 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; - } while (--count > 0); - - if (port->xmit_cnt <= 0) { - rc_out(bp, CD180_CAR, port_No(port)); - port->IER &= ~IER_TXRDY; - rc_out(bp, CD180_IER, port->IER); - } - if (tty && port->xmit_cnt <= port->wakeup_chars) - tty_wakeup(tty); -out: - tty_kref_put(tty); -} - -static void rc_check_modem(struct riscom_board const *bp) -{ - struct riscom_port *port; - struct tty_struct *tty; - unsigned char mcr; - - port = rc_get_port(bp, "Modem"); - if (port == NULL) - return; - - tty = tty_port_tty_get(&port->port); - - mcr = rc_in(bp, CD180_MCR); - if (mcr & MCR_CDCHG) { - if (rc_in(bp, CD180_MSVR) & MSVR_CD) - wake_up_interruptible(&port->port.open_wait); - else if (tty) - tty_hangup(tty); - } - -#ifdef RISCOM_BRAIN_DAMAGED_CTS - if (mcr & MCR_CTSCHG) { - if (rc_in(bp, CD180_MSVR) & MSVR_CTS) { - port->IER |= IER_TXRDY; - if (tty) { - tty->hw_stopped = 0; - if (port->xmit_cnt <= port->wakeup_chars) - tty_wakeup(tty); - } - } else { - if (tty) - tty->hw_stopped = 1; - port->IER &= ~IER_TXRDY; - } - rc_out(bp, CD180_IER, port->IER); - } - if (mcr & MCR_DSRCHG) { - if (rc_in(bp, CD180_MSVR) & MSVR_DSR) { - port->IER |= IER_TXRDY; - if (tty) { - tty->hw_stopped = 0; - if (port->xmit_cnt <= port->wakeup_chars) - tty_wakeup(tty); - } - } else { - if (tty) - tty->hw_stopped = 1; - port->IER &= ~IER_TXRDY; - } - rc_out(bp, CD180_IER, port->IER); - } -#endif /* RISCOM_BRAIN_DAMAGED_CTS */ - - /* Clear change bits */ - rc_out(bp, CD180_MCR, 0); - tty_kref_put(tty); -} - -/* The main interrupt processing routine */ -static irqreturn_t rc_interrupt(int dummy, void *dev_id) -{ - unsigned char status; - unsigned char ack; - struct riscom_board *bp = dev_id; - unsigned long loop = 0; - int handled = 0; - - if (!(bp->flags & RC_BOARD_ACTIVE)) - return IRQ_NONE; - - while ((++loop < 16) && ((status = ~(rc_in(bp, RC_BSR))) & - (RC_BSR_TOUT | RC_BSR_TINT | - RC_BSR_MINT | RC_BSR_RINT))) { - handled = 1; - if (status & RC_BSR_TOUT) - printk(KERN_WARNING "rc%d: Got timeout. Hardware " - "error?\n", board_No(bp)); - else if (status & RC_BSR_RINT) { - ack = rc_in(bp, RC_ACK_RINT); - if (ack == (RC_ID | GIVR_IT_RCV)) - rc_receive(bp); - else if (ack == (RC_ID | GIVR_IT_REXC)) - rc_receive_exc(bp); - else - printk(KERN_WARNING "rc%d: Bad receive ack " - "0x%02x.\n", - board_No(bp), ack); - } else if (status & RC_BSR_TINT) { - ack = rc_in(bp, RC_ACK_TINT); - if (ack == (RC_ID | GIVR_IT_TX)) - rc_transmit(bp); - else - printk(KERN_WARNING "rc%d: Bad transmit ack " - "0x%02x.\n", - board_No(bp), ack); - } else /* if (status & RC_BSR_MINT) */ { - ack = rc_in(bp, RC_ACK_MINT); - if (ack == (RC_ID | GIVR_IT_MODEM)) - rc_check_modem(bp); - else - printk(KERN_WARNING "rc%d: Bad modem ack " - "0x%02x.\n", - board_No(bp), ack); - } - rc_out(bp, CD180_EOIR, 0); /* Mark end of interrupt */ - rc_out(bp, RC_CTOUT, 0); /* Clear timeout flag */ - } - return IRQ_RETVAL(handled); -} - -/* - * Routines for open & close processing. - */ - -/* Called with disabled interrupts */ -static int rc_setup_board(struct riscom_board *bp) -{ - int error; - - if (bp->flags & RC_BOARD_ACTIVE) - return 0; - - error = request_irq(bp->irq, rc_interrupt, IRQF_DISABLED, - "RISCom/8", bp); - if (error) - return error; - - rc_out(bp, RC_CTOUT, 0); /* Just in case */ - bp->DTR = ~0; - rc_out(bp, RC_DTR, bp->DTR); /* Drop DTR on all ports */ - - bp->flags |= RC_BOARD_ACTIVE; - - return 0; -} - -/* Called with disabled interrupts */ -static void rc_shutdown_board(struct riscom_board *bp) -{ - if (!(bp->flags & RC_BOARD_ACTIVE)) - return; - - bp->flags &= ~RC_BOARD_ACTIVE; - - free_irq(bp->irq, NULL); - - bp->DTR = ~0; - rc_out(bp, RC_DTR, bp->DTR); /* Drop DTR on all ports */ - -} - -/* - * Setting up port characteristics. - * Must be called with disabled interrupts - */ -static void rc_change_speed(struct tty_struct *tty, struct riscom_board *bp, - struct riscom_port *port) -{ - unsigned long baud; - long tmp; - unsigned char cor1 = 0, cor3 = 0; - unsigned char mcor1 = 0, mcor2 = 0; - - port->IER = 0; - port->COR2 = 0; - port->MSVR = MSVR_RTS; - - baud = tty_get_baud_rate(tty); - - /* Select port on the board */ - rc_out(bp, CD180_CAR, port_No(port)); - - if (!baud) { - /* Drop DTR & exit */ - bp->DTR |= (1u << port_No(port)); - rc_out(bp, RC_DTR, bp->DTR); - return; - } else { - /* Set DTR on */ - bp->DTR &= ~(1u << port_No(port)); - rc_out(bp, RC_DTR, bp->DTR); - } - - /* - * Now we must calculate some speed depended things - */ - - /* Set baud rate for port */ - tmp = (((RC_OSCFREQ + baud/2) / baud + - CD180_TPC/2) / CD180_TPC); - - rc_out(bp, CD180_RBPRH, (tmp >> 8) & 0xff); - rc_out(bp, CD180_TBPRH, (tmp >> 8) & 0xff); - rc_out(bp, CD180_RBPRL, tmp & 0xff); - rc_out(bp, CD180_TBPRL, tmp & 0xff); - - baud = (baud + 5) / 10; /* Estimated CPS */ - - /* Two timer ticks seems enough to wakeup something like SLIP driver */ - tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO; - port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ? - SERIAL_XMIT_SIZE - 1 : tmp); - - /* Receiver timeout will be transmission time for 1.5 chars */ - tmp = (RISCOM_TPS + RISCOM_TPS/2 + baud/2) / baud; - tmp = (tmp > 0xff) ? 0xff : tmp; - rc_out(bp, CD180_RTPR, tmp); - - switch (C_CSIZE(tty)) { - case CS5: - cor1 |= COR1_5BITS; - break; - case CS6: - cor1 |= COR1_6BITS; - break; - case CS7: - cor1 |= COR1_7BITS; - break; - case CS8: - cor1 |= COR1_8BITS; - break; - } - if (C_CSTOPB(tty)) - cor1 |= COR1_2SB; - - cor1 |= COR1_IGNORE; - if (C_PARENB(tty)) { - cor1 |= COR1_NORMPAR; - if (C_PARODD(tty)) - cor1 |= COR1_ODDP; - if (I_INPCK(tty)) - cor1 &= ~COR1_IGNORE; - } - /* Set marking of some errors */ - port->mark_mask = RCSR_OE | RCSR_TOUT; - if (I_INPCK(tty)) - port->mark_mask |= RCSR_FE | RCSR_PE; - if (I_BRKINT(tty) || I_PARMRK(tty)) - port->mark_mask |= RCSR_BREAK; - if (I_IGNPAR(tty)) - port->mark_mask &= ~(RCSR_FE | RCSR_PE); - if (I_IGNBRK(tty)) { - port->mark_mask &= ~RCSR_BREAK; - if (I_IGNPAR(tty)) - /* Real raw mode. Ignore all */ - port->mark_mask &= ~RCSR_OE; - } - /* Enable Hardware Flow Control */ - if (C_CRTSCTS(tty)) { -#ifdef RISCOM_BRAIN_DAMAGED_CTS - port->IER |= IER_DSR | IER_CTS; - mcor1 |= MCOR1_DSRZD | MCOR1_CTSZD; - mcor2 |= MCOR2_DSROD | MCOR2_CTSOD; - tty->hw_stopped = !(rc_in(bp, CD180_MSVR) & - (MSVR_CTS|MSVR_DSR)); -#else - port->COR2 |= COR2_CTSAE; -#endif - } - /* Enable Software Flow Control. FIXME: I'm not sure about this */ - /* Some people reported that it works, but I still doubt */ - if (I_IXON(tty)) { - port->COR2 |= COR2_TXIBE; - cor3 |= (COR3_FCT | COR3_SCDE); - if (I_IXANY(tty)) - port->COR2 |= COR2_IXM; - rc_out(bp, CD180_SCHR1, START_CHAR(tty)); - rc_out(bp, CD180_SCHR2, STOP_CHAR(tty)); - rc_out(bp, CD180_SCHR3, START_CHAR(tty)); - rc_out(bp, CD180_SCHR4, STOP_CHAR(tty)); - } - if (!C_CLOCAL(tty)) { - /* Enable CD check */ - port->IER |= IER_CD; - mcor1 |= MCOR1_CDZD; - mcor2 |= MCOR2_CDOD; - } - - if (C_CREAD(tty)) - /* Enable receiver */ - port->IER |= IER_RXD; - - /* Set input FIFO size (1-8 bytes) */ - cor3 |= RISCOM_RXFIFO; - /* Setting up CD180 channel registers */ - rc_out(bp, CD180_COR1, cor1); - rc_out(bp, CD180_COR2, port->COR2); - rc_out(bp, CD180_COR3, cor3); - /* Make CD180 know about registers change */ - rc_wait_CCR(bp); - rc_out(bp, CD180_CCR, CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3); - /* Setting up modem option registers */ - rc_out(bp, CD180_MCOR1, mcor1); - rc_out(bp, CD180_MCOR2, mcor2); - /* Enable CD180 transmitter & receiver */ - rc_wait_CCR(bp); - rc_out(bp, CD180_CCR, CCR_TXEN | CCR_RXEN); - /* Enable interrupts */ - rc_out(bp, CD180_IER, port->IER); - /* And finally set RTS on */ - rc_out(bp, CD180_MSVR, port->MSVR); -} - -/* Must be called with interrupts enabled */ -static int rc_activate_port(struct tty_port *port, struct tty_struct *tty) -{ - struct riscom_port *rp = container_of(port, struct riscom_port, port); - struct riscom_board *bp = port_Board(rp); - unsigned long flags; - - if (tty_port_alloc_xmit_buf(port) < 0) - return -ENOMEM; - - spin_lock_irqsave(&riscom_lock, flags); - - clear_bit(TTY_IO_ERROR, &tty->flags); - bp->count++; - rp->xmit_cnt = rp->xmit_head = rp->xmit_tail = 0; - rc_change_speed(tty, bp, rp); - spin_unlock_irqrestore(&riscom_lock, flags); - return 0; -} - -/* Must be called with interrupts disabled */ -static void rc_shutdown_port(struct tty_struct *tty, - struct riscom_board *bp, struct riscom_port *port) -{ -#ifdef RC_REPORT_OVERRUN - printk(KERN_INFO "rc%d: port %d: Total %ld overruns were detected.\n", - board_No(bp), port_No(port), port->overrun); -#endif -#ifdef RC_REPORT_FIFO - { - int i; - - printk(KERN_INFO "rc%d: port %d: FIFO hits [ ", - board_No(bp), port_No(port)); - for (i = 0; i < 10; i++) - printk("%ld ", port->hits[i]); - printk("].\n"); - } -#endif - tty_port_free_xmit_buf(&port->port); - - /* Select port */ - rc_out(bp, CD180_CAR, port_No(port)); - /* Reset port */ - rc_wait_CCR(bp); - rc_out(bp, CD180_CCR, CCR_SOFTRESET); - /* Disable all interrupts from this port */ - port->IER = 0; - rc_out(bp, CD180_IER, port->IER); - - set_bit(TTY_IO_ERROR, &tty->flags); - - if (--bp->count < 0) { - printk(KERN_INFO "rc%d: rc_shutdown_port: " - "bad board count: %d\n", - board_No(bp), bp->count); - bp->count = 0; - } - /* - * If this is the last opened port on the board - * shutdown whole board - */ - if (!bp->count) - rc_shutdown_board(bp); -} - -static int carrier_raised(struct tty_port *port) -{ - struct riscom_port *p = container_of(port, struct riscom_port, port); - struct riscom_board *bp = port_Board(p); - unsigned long flags; - int CD; - - spin_lock_irqsave(&riscom_lock, flags); - rc_out(bp, CD180_CAR, port_No(p)); - CD = rc_in(bp, CD180_MSVR) & MSVR_CD; - rc_out(bp, CD180_MSVR, MSVR_RTS); - bp->DTR &= ~(1u << port_No(p)); - rc_out(bp, RC_DTR, bp->DTR); - spin_unlock_irqrestore(&riscom_lock, flags); - return CD; -} - -static void dtr_rts(struct tty_port *port, int onoff) -{ - struct riscom_port *p = container_of(port, struct riscom_port, port); - struct riscom_board *bp = port_Board(p); - unsigned long flags; - - spin_lock_irqsave(&riscom_lock, flags); - bp->DTR &= ~(1u << port_No(p)); - if (onoff == 0) - bp->DTR |= (1u << port_No(p)); - rc_out(bp, RC_DTR, bp->DTR); - spin_unlock_irqrestore(&riscom_lock, flags); -} - -static int rc_open(struct tty_struct *tty, struct file *filp) -{ - int board; - int error; - struct riscom_port *port; - struct riscom_board *bp; - - board = RC_BOARD(tty->index); - if (board >= RC_NBOARD || !(rc_board[board].flags & RC_BOARD_PRESENT)) - return -ENODEV; - - bp = &rc_board[board]; - port = rc_port + board * RC_NPORT + RC_PORT(tty->index); - if (rc_paranoia_check(port, tty->name, "rc_open")) - return -ENODEV; - - error = rc_setup_board(bp); - if (error) - return error; - - tty->driver_data = port; - return tty_port_open(&port->port, tty, filp); -} - -static void rc_flush_buffer(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, "rc_flush_buffer")) - return; - - spin_lock_irqsave(&riscom_lock, flags); - port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; - spin_unlock_irqrestore(&riscom_lock, flags); - - tty_wakeup(tty); -} - -static void rc_close_port(struct tty_port *port) -{ - unsigned long flags; - struct riscom_port *rp = container_of(port, struct riscom_port, port); - struct riscom_board *bp = port_Board(rp); - unsigned long timeout; - - /* - * At this point we stop accepting input. To do this, we - * disable the receive line status interrupts, and tell the - * interrupt driver to stop checking the data ready bit in the - * line status register. - */ - - spin_lock_irqsave(&riscom_lock, flags); - rp->IER &= ~IER_RXD; - - rp->IER &= ~IER_TXRDY; - rp->IER |= IER_TXEMPTY; - rc_out(bp, CD180_CAR, port_No(rp)); - rc_out(bp, CD180_IER, rp->IER); - /* - * Before we drop DTR, make sure the UART transmitter - * has completely drained; this is especially - * important if there is a transmit FIFO! - */ - timeout = jiffies + HZ; - while (rp->IER & IER_TXEMPTY) { - spin_unlock_irqrestore(&riscom_lock, flags); - msleep_interruptible(jiffies_to_msecs(rp->timeout)); - spin_lock_irqsave(&riscom_lock, flags); - if (time_after(jiffies, timeout)) - break; - } - rc_shutdown_port(port->tty, bp, rp); - spin_unlock_irqrestore(&riscom_lock, flags); -} - -static void rc_close(struct tty_struct *tty, struct file *filp) -{ - struct riscom_port *port = tty->driver_data; - - if (!port || rc_paranoia_check(port, tty->name, "close")) - return; - tty_port_close(&port->port, tty, filp); -} - -static int rc_write(struct tty_struct *tty, - const unsigned char *buf, int count) -{ - struct riscom_port *port = tty->driver_data; - struct riscom_board *bp; - int c, total = 0; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, "rc_write")) - return 0; - - bp = port_Board(port); - - while (1) { - spin_lock_irqsave(&riscom_lock, flags); - - c = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1, - SERIAL_XMIT_SIZE - port->xmit_head)); - if (c <= 0) - break; /* lock continues to be held */ - - 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; - - spin_unlock_irqrestore(&riscom_lock, flags); - - buf += c; - count -= c; - total += c; - } - - if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped && - !(port->IER & IER_TXRDY)) { - port->IER |= IER_TXRDY; - rc_out(bp, CD180_CAR, port_No(port)); - rc_out(bp, CD180_IER, port->IER); - } - - spin_unlock_irqrestore(&riscom_lock, flags); - - return total; -} - -static int rc_put_char(struct tty_struct *tty, unsigned char ch) -{ - struct riscom_port *port = tty->driver_data; - unsigned long flags; - int ret = 0; - - if (rc_paranoia_check(port, tty->name, "rc_put_char")) - return 0; - - spin_lock_irqsave(&riscom_lock, flags); - - if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) - goto out; - - port->port.xmit_buf[port->xmit_head++] = ch; - port->xmit_head &= SERIAL_XMIT_SIZE - 1; - port->xmit_cnt++; - ret = 1; - -out: - spin_unlock_irqrestore(&riscom_lock, flags); - return ret; -} - -static void rc_flush_chars(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, "rc_flush_chars")) - return; - - if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped) - return; - - spin_lock_irqsave(&riscom_lock, flags); - - port->IER |= IER_TXRDY; - rc_out(port_Board(port), CD180_CAR, port_No(port)); - rc_out(port_Board(port), CD180_IER, port->IER); - - spin_unlock_irqrestore(&riscom_lock, flags); -} - -static int rc_write_room(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - int ret; - - if (rc_paranoia_check(port, tty->name, "rc_write_room")) - return 0; - - ret = SERIAL_XMIT_SIZE - port->xmit_cnt - 1; - if (ret < 0) - ret = 0; - return ret; -} - -static int rc_chars_in_buffer(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - - if (rc_paranoia_check(port, tty->name, "rc_chars_in_buffer")) - return 0; - - return port->xmit_cnt; -} - -static int rc_tiocmget(struct tty_struct *tty, struct file *file) -{ - struct riscom_port *port = tty->driver_data; - struct riscom_board *bp; - unsigned char status; - unsigned int result; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, __func__)) - return -ENODEV; - - bp = port_Board(port); - - spin_lock_irqsave(&riscom_lock, flags); - - rc_out(bp, CD180_CAR, port_No(port)); - status = rc_in(bp, CD180_MSVR); - result = rc_in(bp, RC_RI) & (1u << port_No(port)) ? 0 : TIOCM_RNG; - - spin_unlock_irqrestore(&riscom_lock, flags); - - result |= ((status & MSVR_RTS) ? TIOCM_RTS : 0) - | ((status & MSVR_DTR) ? TIOCM_DTR : 0) - | ((status & MSVR_CD) ? TIOCM_CAR : 0) - | ((status & MSVR_DSR) ? TIOCM_DSR : 0) - | ((status & MSVR_CTS) ? TIOCM_CTS : 0); - return result; -} - -static int rc_tiocmset(struct tty_struct *tty, struct file *file, - unsigned int set, unsigned int clear) -{ - struct riscom_port *port = tty->driver_data; - unsigned long flags; - struct riscom_board *bp; - - if (rc_paranoia_check(port, tty->name, __func__)) - return -ENODEV; - - bp = port_Board(port); - - spin_lock_irqsave(&riscom_lock, flags); - - if (set & TIOCM_RTS) - port->MSVR |= MSVR_RTS; - if (set & TIOCM_DTR) - bp->DTR &= ~(1u << port_No(port)); - - if (clear & TIOCM_RTS) - port->MSVR &= ~MSVR_RTS; - if (clear & TIOCM_DTR) - bp->DTR |= (1u << port_No(port)); - - rc_out(bp, CD180_CAR, port_No(port)); - rc_out(bp, CD180_MSVR, port->MSVR); - rc_out(bp, RC_DTR, bp->DTR); - - spin_unlock_irqrestore(&riscom_lock, flags); - - return 0; -} - -static int rc_send_break(struct tty_struct *tty, int length) -{ - struct riscom_port *port = tty->driver_data; - struct riscom_board *bp = port_Board(port); - unsigned long flags; - - if (length == 0 || length == -1) - return -EOPNOTSUPP; - - spin_lock_irqsave(&riscom_lock, flags); - - port->break_length = RISCOM_TPS / HZ * length; - port->COR2 |= COR2_ETC; - port->IER |= IER_TXRDY; - rc_out(bp, CD180_CAR, port_No(port)); - rc_out(bp, CD180_COR2, port->COR2); - rc_out(bp, CD180_IER, port->IER); - rc_wait_CCR(bp); - rc_out(bp, CD180_CCR, CCR_CORCHG2); - rc_wait_CCR(bp); - - spin_unlock_irqrestore(&riscom_lock, flags); - return 0; -} - -static int rc_set_serial_info(struct tty_struct *tty, struct riscom_port *port, - struct serial_struct __user *newinfo) -{ - struct serial_struct tmp; - struct riscom_board *bp = port_Board(port); - int change_speed; - - if (copy_from_user(&tmp, newinfo, sizeof(tmp))) - return -EFAULT; - - mutex_lock(&port->port.mutex); - change_speed = ((port->port.flags & ASYNC_SPD_MASK) != - (tmp.flags & ASYNC_SPD_MASK)); - - if (!capable(CAP_SYS_ADMIN)) { - if ((tmp.close_delay != port->port.close_delay) || - (tmp.closing_wait != port->port.closing_wait) || - ((tmp.flags & ~ASYNC_USR_MASK) != - (port->port.flags & ~ASYNC_USR_MASK))) { - mutex_unlock(&port->port.mutex); - return -EPERM; - } - port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) | - (tmp.flags & ASYNC_USR_MASK)); - } else { - port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) | - (tmp.flags & ASYNC_FLAGS)); - port->port.close_delay = tmp.close_delay; - port->port.closing_wait = tmp.closing_wait; - } - if (change_speed) { - unsigned long flags; - - spin_lock_irqsave(&riscom_lock, flags); - rc_change_speed(tty, bp, port); - spin_unlock_irqrestore(&riscom_lock, flags); - } - mutex_unlock(&port->port.mutex); - return 0; -} - -static int rc_get_serial_info(struct riscom_port *port, - struct serial_struct __user *retinfo) -{ - struct serial_struct tmp; - struct riscom_board *bp = port_Board(port); - - memset(&tmp, 0, sizeof(tmp)); - tmp.type = PORT_CIRRUS; - tmp.line = port - rc_port; - - mutex_lock(&port->port.mutex); - tmp.port = bp->base; - tmp.irq = bp->irq; - tmp.flags = port->port.flags; - tmp.baud_base = (RC_OSCFREQ + CD180_TPC/2) / CD180_TPC; - tmp.close_delay = port->port.close_delay * HZ/100; - tmp.closing_wait = port->port.closing_wait * HZ/100; - mutex_unlock(&port->port.mutex); - tmp.xmit_fifo_size = CD180_NFIFO; - return copy_to_user(retinfo, &tmp, sizeof(tmp)) ? -EFAULT : 0; -} - -static int rc_ioctl(struct tty_struct *tty, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - struct riscom_port *port = tty->driver_data; - void __user *argp = (void __user *)arg; - int retval; - - if (rc_paranoia_check(port, tty->name, "rc_ioctl")) - return -ENODEV; - - switch (cmd) { - case TIOCGSERIAL: - retval = rc_get_serial_info(port, argp); - break; - case TIOCSSERIAL: - retval = rc_set_serial_info(tty, port, argp); - break; - default: - retval = -ENOIOCTLCMD; - } - return retval; -} - -static void rc_throttle(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - struct riscom_board *bp; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, "rc_throttle")) - return; - bp = port_Board(port); - - spin_lock_irqsave(&riscom_lock, flags); - port->MSVR &= ~MSVR_RTS; - rc_out(bp, CD180_CAR, port_No(port)); - if (I_IXOFF(tty)) { - rc_wait_CCR(bp); - rc_out(bp, CD180_CCR, CCR_SSCH2); - rc_wait_CCR(bp); - } - rc_out(bp, CD180_MSVR, port->MSVR); - spin_unlock_irqrestore(&riscom_lock, flags); -} - -static void rc_unthrottle(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - struct riscom_board *bp; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, "rc_unthrottle")) - return; - bp = port_Board(port); - - spin_lock_irqsave(&riscom_lock, flags); - port->MSVR |= MSVR_RTS; - rc_out(bp, CD180_CAR, port_No(port)); - if (I_IXOFF(tty)) { - rc_wait_CCR(bp); - rc_out(bp, CD180_CCR, CCR_SSCH1); - rc_wait_CCR(bp); - } - rc_out(bp, CD180_MSVR, port->MSVR); - spin_unlock_irqrestore(&riscom_lock, flags); -} - -static void rc_stop(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - struct riscom_board *bp; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, "rc_stop")) - return; - - bp = port_Board(port); - - spin_lock_irqsave(&riscom_lock, flags); - port->IER &= ~IER_TXRDY; - rc_out(bp, CD180_CAR, port_No(port)); - rc_out(bp, CD180_IER, port->IER); - spin_unlock_irqrestore(&riscom_lock, flags); -} - -static void rc_start(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - struct riscom_board *bp; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, "rc_start")) - return; - - bp = port_Board(port); - - spin_lock_irqsave(&riscom_lock, flags); - - 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); - } - spin_unlock_irqrestore(&riscom_lock, flags); -} - -static void rc_hangup(struct tty_struct *tty) -{ - struct riscom_port *port = tty->driver_data; - - if (rc_paranoia_check(port, tty->name, "rc_hangup")) - return; - - tty_port_hangup(&port->port); -} - -static void rc_set_termios(struct tty_struct *tty, - struct ktermios *old_termios) -{ - struct riscom_port *port = tty->driver_data; - unsigned long flags; - - if (rc_paranoia_check(port, tty->name, "rc_set_termios")) - return; - - spin_lock_irqsave(&riscom_lock, flags); - rc_change_speed(tty, port_Board(port), port); - spin_unlock_irqrestore(&riscom_lock, flags); - - if ((old_termios->c_cflag & CRTSCTS) && - !(tty->termios->c_cflag & CRTSCTS)) { - tty->hw_stopped = 0; - rc_start(tty); - } -} - -static const struct tty_operations riscom_ops = { - .open = rc_open, - .close = rc_close, - .write = rc_write, - .put_char = rc_put_char, - .flush_chars = rc_flush_chars, - .write_room = rc_write_room, - .chars_in_buffer = rc_chars_in_buffer, - .flush_buffer = rc_flush_buffer, - .ioctl = rc_ioctl, - .throttle = rc_throttle, - .unthrottle = rc_unthrottle, - .set_termios = rc_set_termios, - .stop = rc_stop, - .start = rc_start, - .hangup = rc_hangup, - .tiocmget = rc_tiocmget, - .tiocmset = rc_tiocmset, - .break_ctl = rc_send_break, -}; - -static const struct tty_port_operations riscom_port_ops = { - .carrier_raised = carrier_raised, - .dtr_rts = dtr_rts, - .shutdown = rc_close_port, - .activate = rc_activate_port, -}; - - -static int __init rc_init_drivers(void) -{ - int error; - int i; - - riscom_driver = alloc_tty_driver(RC_NBOARD * RC_NPORT); - if (!riscom_driver) - return -ENOMEM; - - riscom_driver->owner = THIS_MODULE; - riscom_driver->name = "ttyL"; - riscom_driver->major = RISCOM8_NORMAL_MAJOR; - riscom_driver->type = TTY_DRIVER_TYPE_SERIAL; - riscom_driver->subtype = SERIAL_TYPE_NORMAL; - riscom_driver->init_termios = tty_std_termios; - riscom_driver->init_termios.c_cflag = - B9600 | CS8 | CREAD | HUPCL | CLOCAL; - riscom_driver->init_termios.c_ispeed = 9600; - riscom_driver->init_termios.c_ospeed = 9600; - riscom_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_HARDWARE_BREAK; - tty_set_operations(riscom_driver, &riscom_ops); - error = tty_register_driver(riscom_driver); - if (error != 0) { - put_tty_driver(riscom_driver); - printk(KERN_ERR "rc: Couldn't register RISCom/8 driver, " - "error = %d\n", error); - return 1; - } - 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].port.ops = &riscom_port_ops; - rc_port[i].magic = RISCOM8_MAGIC; - } - return 0; -} - -static void rc_release_drivers(void) -{ - tty_unregister_driver(riscom_driver); - put_tty_driver(riscom_driver); -} - -#ifndef MODULE -/* - * Called at boot time. - * - * You can specify IO base for up to RC_NBOARD cards, - * using line "riscom8=0xiobase1,0xiobase2,.." at LILO prompt. - * Note that there will be no probing at default - * addresses in this case. - * - */ -static int __init riscom8_setup(char *str) -{ - int ints[RC_NBOARD]; - int i; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - for (i = 0; i < RC_NBOARD; i++) { - if (i < ints[0]) - rc_board[i].base = ints[i+1]; - else - rc_board[i].base = 0; - } - return 1; -} - -__setup("riscom8=", riscom8_setup); -#endif - -static char banner[] __initdata = - KERN_INFO "rc: SDL RISCom/8 card driver v1.1, (c) D.Gorodchanin " - "1994-1996.\n"; -static char no_boards_msg[] __initdata = - KERN_INFO "rc: No RISCom/8 boards detected.\n"; - -/* - * This routine must be called by kernel at boot time - */ -static int __init riscom8_init(void) -{ - int i; - int found = 0; - - printk(banner); - - if (rc_init_drivers()) - return -EIO; - - for (i = 0; i < RC_NBOARD; i++) - if (rc_board[i].base && !rc_probe(&rc_board[i])) - found++; - if (!found) { - rc_release_drivers(); - printk(no_boards_msg); - return -EIO; - } - return 0; -} - -#ifdef MODULE -static int iobase; -static int iobase1; -static int iobase2; -static int iobase3; -module_param(iobase, int, 0); -module_param(iobase1, int, 0); -module_param(iobase2, int, 0); -module_param(iobase3, int, 0); - -MODULE_LICENSE("GPL"); -MODULE_ALIAS_CHARDEV_MAJOR(RISCOM8_NORMAL_MAJOR); -#endif /* MODULE */ - -/* - * You can setup up to 4 boards (current value of RC_NBOARD) - * by specifying "iobase=0xXXX iobase1=0xXXX ..." as insmod parameter. - * - */ -static int __init riscom8_init_module(void) -{ -#ifdef MODULE - int i; - - if (iobase || iobase1 || iobase2 || iobase3) { - for (i = 0; i < RC_NBOARD; i++) - rc_board[i].base = 0; - } - - if (iobase) - rc_board[0].base = iobase; - if (iobase1) - rc_board[1].base = iobase1; - if (iobase2) - rc_board[2].base = iobase2; - if (iobase3) - rc_board[3].base = iobase3; -#endif /* MODULE */ - - return riscom8_init(); -} - -static void __exit riscom8_exit_module(void) -{ - int i; - - rc_release_drivers(); - for (i = 0; i < RC_NBOARD; i++) - if (rc_board[i].flags & RC_BOARD_PRESENT) - rc_release_io_range(&rc_board[i]); - -} - -module_init(riscom8_init_module); -module_exit(riscom8_exit_module); |