diff options
| -rw-r--r-- | drivers/tty/serial/8250/8250.c | 308 |
1 files changed, 150 insertions, 158 deletions
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index 917ab845274..9674eac5535 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -486,26 +486,18 @@ serial_out_sync(struct uart_8250_port *up, int offset, int value) (up->port.serial_in(&(up)->port, (offset))) #define serial_out(up, offset, value) \ (up->port.serial_out(&(up)->port, (offset), (value))) -/* - * We used to support using pause I/O for certain machines. We - * haven't supported this for a while, but just in case it's badly - * needed for certain old 386 machines, I've left these #define's - * in.... - */ -#define serial_inp(up, offset) serial_in(up, offset) -#define serial_outp(up, offset, value) serial_out(up, offset, value) /* Uart divisor latch read */ static inline int _serial_dl_read(struct uart_8250_port *up) { - return serial_inp(up, UART_DLL) | serial_inp(up, UART_DLM) << 8; + return serial_in(up, UART_DLL) | serial_in(up, UART_DLM) << 8; } /* Uart divisor latch write */ static inline void _serial_dl_write(struct uart_8250_port *up, int value) { - serial_outp(up, UART_DLL, value & 0xff); - serial_outp(up, UART_DLM, value >> 8 & 0xff); + serial_out(up, UART_DLL, value & 0xff); + serial_out(up, UART_DLM, value >> 8 & 0xff); } #if defined(CONFIG_MIPS_ALCHEMY) @@ -575,10 +567,10 @@ static unsigned int serial_icr_read(struct uart_8250_port *up, int offset) static void serial8250_clear_fifos(struct uart_8250_port *p) { if (p->capabilities & UART_CAP_FIFO) { - serial_outp(p, UART_FCR, UART_FCR_ENABLE_FIFO); - serial_outp(p, UART_FCR, UART_FCR_ENABLE_FIFO | + serial_out(p, UART_FCR, UART_FCR_ENABLE_FIFO); + serial_out(p, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT); - serial_outp(p, UART_FCR, 0); + serial_out(p, UART_FCR, 0); } } @@ -591,15 +583,15 @@ static void serial8250_set_sleep(struct uart_8250_port *p, int sleep) { if (p->capabilities & UART_CAP_SLEEP) { if (p->capabilities & UART_CAP_EFR) { - serial_outp(p, UART_LCR, UART_LCR_CONF_MODE_B); - serial_outp(p, UART_EFR, UART_EFR_ECB); - serial_outp(p, UART_LCR, 0); + serial_out(p, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(p, UART_EFR, UART_EFR_ECB); + serial_out(p, UART_LCR, 0); } - serial_outp(p, UART_IER, sleep ? UART_IERX_SLEEP : 0); + serial_out(p, UART_IER, sleep ? UART_IERX_SLEEP : 0); if (p->capabilities & UART_CAP_EFR) { - serial_outp(p, UART_LCR, UART_LCR_CONF_MODE_B); - serial_outp(p, UART_EFR, 0); - serial_outp(p, UART_LCR, 0); + serial_out(p, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(p, UART_EFR, 0); + serial_out(p, UART_LCR, 0); } } } @@ -614,12 +606,12 @@ static int __enable_rsa(struct uart_8250_port *up) unsigned char mode; int result; - mode = serial_inp(up, UART_RSA_MSR); + mode = serial_in(up, UART_RSA_MSR); result = mode & UART_RSA_MSR_FIFO; if (!result) { - serial_outp(up, UART_RSA_MSR, mode | UART_RSA_MSR_FIFO); - mode = serial_inp(up, UART_RSA_MSR); + serial_out(up, UART_RSA_MSR, mode | UART_RSA_MSR_FIFO); + mode = serial_in(up, UART_RSA_MSR); result = mode & UART_RSA_MSR_FIFO; } @@ -638,7 +630,7 @@ static void enable_rsa(struct uart_8250_port *up) spin_unlock_irq(&up->port.lock); } if (up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16) - serial_outp(up, UART_RSA_FRR, 0); + serial_out(up, UART_RSA_FRR, 0); } } @@ -657,12 +649,12 @@ static void disable_rsa(struct uart_8250_port *up) up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16) { spin_lock_irq(&up->port.lock); - mode = serial_inp(up, UART_RSA_MSR); + mode = serial_in(up, UART_RSA_MSR); result = !(mode & UART_RSA_MSR_FIFO); if (!result) { - serial_outp(up, UART_RSA_MSR, mode & ~UART_RSA_MSR_FIFO); - mode = serial_inp(up, UART_RSA_MSR); + serial_out(up, UART_RSA_MSR, mode & ~UART_RSA_MSR_FIFO); + mode = serial_in(up, UART_RSA_MSR); result = !(mode & UART_RSA_MSR_FIFO); } @@ -683,28 +675,28 @@ static int size_fifo(struct uart_8250_port *up) unsigned short old_dl; int count; - old_lcr = serial_inp(up, UART_LCR); - serial_outp(up, UART_LCR, 0); - old_fcr = serial_inp(up, UART_FCR); - old_mcr = serial_inp(up, UART_MCR); - serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO | + old_lcr = serial_in(up, UART_LCR); + serial_out(up, UART_LCR, 0); + old_fcr = serial_in(up, UART_FCR); + old_mcr = serial_in(up, UART_MCR); + serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT); - serial_outp(up, UART_MCR, UART_MCR_LOOP); - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_A); + serial_out(up, UART_MCR, UART_MCR_LOOP); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); old_dl = serial_dl_read(up); serial_dl_write(up, 0x0001); - serial_outp(up, UART_LCR, 0x03); + serial_out(up, UART_LCR, 0x03); for (count = 0; count < 256; count++) - serial_outp(up, UART_TX, count); + serial_out(up, UART_TX, count); mdelay(20);/* FIXME - schedule_timeout */ - for (count = 0; (serial_inp(up, UART_LSR) & UART_LSR_DR) && + for (count = 0; (serial_in(up, UART_LSR) & UART_LSR_DR) && (count < 256); count++) - serial_inp(up, UART_RX); - serial_outp(up, UART_FCR, old_fcr); - serial_outp(up, UART_MCR, old_mcr); - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_A); + serial_in(up, UART_RX); + serial_out(up, UART_FCR, old_fcr); + serial_out(up, UART_MCR, old_mcr); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); serial_dl_write(up, old_dl); - serial_outp(up, UART_LCR, old_lcr); + serial_out(up, UART_LCR, old_lcr); return count; } @@ -719,20 +711,20 @@ static unsigned int autoconfig_read_divisor_id(struct uart_8250_port *p) unsigned char old_dll, old_dlm, old_lcr; unsigned int id; - old_lcr = serial_inp(p, UART_LCR); - serial_outp(p, UART_LCR, UART_LCR_CONF_MODE_A); + old_lcr = serial_in(p, UART_LCR); + serial_out(p, UART_LCR, UART_LCR_CONF_MODE_A); - old_dll = serial_inp(p, UART_DLL); - old_dlm = serial_inp(p, UART_DLM); + old_dll = serial_in(p, UART_DLL); + old_dlm = serial_in(p, UART_DLM); - serial_outp(p, UART_DLL, 0); - serial_outp(p, UART_DLM, 0); + serial_out(p, UART_DLL, 0); + serial_out(p, UART_DLM, 0); - id = serial_inp(p, UART_DLL) | serial_inp(p, UART_DLM) << 8; + id = serial_in(p, UART_DLL) | serial_in(p, UART_DLM) << 8; - serial_outp(p, UART_DLL, old_dll); - serial_outp(p, UART_DLM, old_dlm); - serial_outp(p, UART_LCR, old_lcr); + serial_out(p, UART_DLL, old_dll); + serial_out(p, UART_DLM, old_dlm); + serial_out(p, UART_LCR, old_lcr); return id; } @@ -842,11 +834,11 @@ static void autoconfig_8250(struct uart_8250_port *up) up->port.type = PORT_8250; scratch = serial_in(up, UART_SCR); - serial_outp(up, UART_SCR, 0xa5); + serial_out(up, UART_SCR, 0xa5); status1 = serial_in(up, UART_SCR); - serial_outp(up, UART_SCR, 0x5a); + serial_out(up, UART_SCR, 0x5a); status2 = serial_in(up, UART_SCR); - serial_outp(up, UART_SCR, scratch); + serial_out(up, UART_SCR, scratch); if (status1 == 0xa5 && status2 == 0x5a) up->port.type = PORT_16450; @@ -877,7 +869,7 @@ static inline int ns16550a_goto_highspeed(struct uart_8250_port *up) } else { status &= ~0xB0; /* Disable LOCK, mask out PRESL[01] */ status |= 0x10; /* 1.625 divisor for baud_base --> 921600 */ - serial_outp(up, 0x04, status); + serial_out(up, 0x04, status); } return 1; } @@ -900,9 +892,9 @@ static void autoconfig_16550a(struct uart_8250_port *up) * Check for presence of the EFR when DLAB is set. * Only ST16C650V1 UARTs pass this test. */ - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_A); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); if (serial_in(up, UART_EFR) == 0) { - serial_outp(up, UART_EFR, 0xA8); + serial_out(up, UART_EFR, 0xA8); if (serial_in(up, UART_EFR) != 0) { DEBUG_AUTOCONF("EFRv1 "); up->port.type = PORT_16650; @@ -910,7 +902,7 @@ static void autoconfig_16550a(struct uart_8250_port *up) } else { DEBUG_AUTOCONF("Motorola 8xxx DUART "); } - serial_outp(up, UART_EFR, 0); + serial_out(up, UART_EFR, 0); return; } @@ -918,7 +910,7 @@ static void autoconfig_16550a(struct uart_8250_port *up) * Maybe it requires 0xbf to be written to the LCR. * (other ST16C650V2 UARTs, TI16C752A, etc) */ - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); if (serial_in(up, UART_EFR) == 0 && !broken_efr(up)) { DEBUG_AUTOCONF("EFRv2 "); autoconfig_has_efr(up); @@ -932,23 +924,23 @@ static void autoconfig_16550a(struct uart_8250_port *up) * switch back to bank 2, read it from EXCR1 again and check * it's changed. If so, set baud_base in EXCR2 to 921600. -- dwmw2 */ - serial_outp(up, UART_LCR, 0); + serial_out(up, UART_LCR, 0); status1 = serial_in(up, UART_MCR); - serial_outp(up, UART_LCR, 0xE0); + serial_out(up, UART_LCR, 0xE0); status2 = serial_in(up, 0x02); /* EXCR1 */ if (!((status2 ^ status1) & UART_MCR_LOOP)) { - serial_outp(up, UART_LCR, 0); - serial_outp(up, UART_MCR, status1 ^ UART_MCR_LOOP); - serial_outp(up, UART_LCR, 0xE0); + serial_out(up, UART_LCR, 0); + serial_out(up, UART_MCR, status1 ^ UART_MCR_LOOP); + serial_out(up, UART_LCR, 0xE0); status2 = serial_in(up, 0x02); /* EXCR1 */ - serial_outp(up, UART_LCR, 0); - serial_outp(up, UART_MCR, status1); + serial_out(up, UART_LCR, 0); + serial_out(up, UART_MCR, status1); if ((status2 ^ status1) & UART_MCR_LOOP) { unsigned short quot; - serial_outp(up, UART_LCR, 0xE0); + serial_out(up, UART_LCR, 0xE0); quot = serial_dl_read(up); quot <<= 3; @@ -956,7 +948,7 @@ static void autoconfig_16550a(struct uart_8250_port *up) if (ns16550a_goto_highspeed(up)) serial_dl_write(up, quot); - serial_outp(up, UART_LCR, 0); + serial_out(up, UART_LCR, 0); up->port.uartclk = 921600*16; up->port.type = PORT_NS16550A; @@ -971,15 +963,15 @@ static void autoconfig_16550a(struct uart_8250_port *up) * Try setting it with and without DLAB set. Cheap clones * set bit 5 without DLAB set. */ - serial_outp(up, UART_LCR, 0); - serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR7_64BYTE); + serial_out(up, UART_LCR, 0); + serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR7_64BYTE); status1 = serial_in(up, UART_IIR) >> 5; - serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO); - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_A); - serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR7_64BYTE); + serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A); + serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR7_64BYTE); status2 = serial_in(up, UART_IIR) >> 5; - serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO); - serial_outp(up, UART_LCR, 0); + serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO); + serial_out(up, UART_LCR, 0); DEBUG_AUTOCONF("iir1=%d iir2=%d ", status1, status2); @@ -998,13 +990,13 @@ static void autoconfig_16550a(struct uart_8250_port *up) * already a 1 and maybe locked there before we even start start. */ iersave = serial_in(up, UART_IER); - serial_outp(up, UART_IER, iersave & ~UART_IER_UUE); + serial_out(up, UART_IER, iersave & ~UART_IER_UUE); if (!(serial_in(up, UART_IER) & UART_IER_UUE)) { /* * OK it's in a known zero state, try writing and reading * without disturbing the current state of the other bits. */ - serial_outp(up, UART_IER, iersave | UART_IER_UUE); + serial_out(up, UART_IER, iersave | UART_IER_UUE); if (serial_in(up, UART_IER) & UART_IER_UUE) { /* * It's an Xscale. @@ -1022,7 +1014,7 @@ static void autoconfig_16550a(struct uart_8250_port *up) */ DEBUG_AUTOCONF("Couldn't force IER_UUE to 0 "); } - serial_outp(up, UART_IER, iersave); + serial_out(up, UART_IER, iersave); /* * Exar uarts have EFR in a weird location @@ -1084,8 +1076,8 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags) * Note: this is safe as long as MCR bit 4 is clear * and the device is in "PC" mode. */ - scratch = serial_inp(up, UART_IER); - serial_outp(up, UART_IER, 0); + scratch = serial_in(up, UART_IER); + serial_out(up, UART_IER, 0); #ifdef __i386__ outb(0xff, 0x080); #endif @@ -1093,13 +1085,13 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags) * Mask out IER[7:4] bits for test as some UARTs (e.g. TL * 16C754B) allow only to modify them if an EFR bit is set. */ - scratch2 = serial_inp(up, UART_IER) & 0x0f; - serial_outp(up, UART_IER, 0x0F); + scratch2 = serial_in(up, UART_IER) & 0x0f; + serial_out(up, UART_IER, 0x0F); #ifdef __i386__ outb(0, 0x080); #endif - scratch3 = serial_inp(up, UART_IER) & 0x0f; - serial_outp(up, UART_IER, scratch); + scratch3 = serial_in(up, UART_IER) & 0x0f; + serial_out(up, UART_IER, scratch); if (scratch2 != 0 || scratch3 != 0x0F) { /* * We failed; there's nothing here @@ -1123,9 +1115,9 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags) * that conflicts with COM 1-4 --- we hope! */ if (!(up->port.flags & UPF_SKIP_TEST)) { - serial_outp(up, UART_MCR, UART_MCR_LOOP | 0x0A); - status1 = serial_inp(up, UART_MSR) & 0xF0; - serial_outp(up, UART_MCR, save_mcr); + serial_out(up, UART_MCR, UART_MCR_LOOP | 0x0A); + status1 = serial_in(up, UART_MSR) & 0xF0; + serial_out(up, UART_MCR, save_mcr); if (status1 != 0x90) { DEBUG_AUTOCONF("LOOP test failed (%02x) ", status1); @@ -1142,11 +1134,11 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags) * We also initialise the EFR (if any) to zero for later. The * EFR occupies the same register location as the FCR and IIR. */ - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_B); - serial_outp(up, UART_EFR, 0); - serial_outp(up, UART_LCR, 0); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(up, UART_EFR, 0); + serial_out(up, UART_LCR, 0); - serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO); + serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO); scratch = serial_in(up, UART_IIR) >> 6; DEBUG_AUTOCONF("iir=%d ", scratch); @@ -1183,7 +1175,7 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags) } #endif - serial_outp(up, UART_LCR, save_lcr); + serial_out(up, UART_LCR, save_lcr); if (up->capabilities != uart_config[up->port.type].flags) { printk(KERN_WARNING @@ -1204,15 +1196,15 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags) */ #ifdef CONFIG_SERIAL_8250_RSA if (up->port.type == PORT_RSA) - serial_outp(up, UART_RSA_FRR, 0); + serial_out(up, UART_RSA_FRR, 0); #endif - serial_outp(up, UART_MCR, save_mcr); + serial_out(up, UART_MCR, save_mcr); serial8250_clear_fifos(up); serial_in(up, UART_RX); if (up->capabilities & UART_CAP_UUE) - serial_outp(up, UART_IER, UART_IER_UUE); + serial_out(up, UART_IER, UART_IER_UUE); else - serial_outp(up, UART_IER, 0); + serial_out(up, UART_IER, 0); out: spin_unlock_irqrestore(&up->port.lock, flags); @@ -1236,31 +1228,31 @@ static void autoconfig_irq(struct uart_8250_port *up) /* forget possible initially masked and pending IRQ */ probe_irq_off(probe_irq_on()); - save_mcr = serial_inp(up, UART_MCR); - save_ier = serial_inp(up, UART_IER); - serial_outp(up, UART_MCR, UART_MCR_OUT1 | UART_MCR_OUT2); + save_mcr = serial_in(up, UART_MCR); + save_ier = serial_in(up, UART_IER); + serial_out(up, UART_MCR, UART_MCR_OUT1 | UART_MCR_OUT2); irqs = probe_irq_on(); - serial_outp(up, UART_MCR, 0); + serial_out(up, UART_MCR, 0); udelay(10); if (up->port.flags & UPF_FOURPORT) { - serial_outp(up, UART_MCR, + serial_out(up, UART_MCR, UART_MCR_DTR | UART_MCR_RTS); } else { - serial_outp(up, UART_MCR, + serial_out(up, UART_MCR, UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2); } - serial_outp(up, UART_IER, 0x0f); /* enable all intrs */ - (void)serial_inp(up, UART_LSR); - (void)serial_inp(up, UART_RX); - (void)serial_inp(up, UART_IIR); - (void)serial_inp(up, UART_MSR); - serial_outp(up, UART_TX, 0xFF); + serial_out(up, UART_IER, 0x0f); /* enable all intrs */ + (void)serial_in(up, UART_LSR); + (void)serial_in(up, UART_RX); + (void)serial_in(up, UART_IIR); + (void)serial_in(up, UART_MSR); + serial_out(up, UART_TX, 0xFF); udelay(20); irq = probe_irq_off(irqs); - serial_outp(up, UART_MCR, save_mcr); - serial_outp(up, UART_IER, save_ier); + serial_out(up, UART_MCR, save_mcr); + serial_out(up, UART_IER, save_ier); if (up->port.flags & UPF_FOURPORT) outb_p(save_ICP, ICP); @@ -1380,7 +1372,7 @@ serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr) do { if (likely(lsr & UART_LSR_DR)) - ch = serial_inp(up, UART_RX); + ch = serial_in(up, UART_RX); else /* * Intel 82571 has a Serial Over Lan device that will @@ -1445,7 +1437,7 @@ serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr) uart_insert_char(&up->port, lsr, UART_LSR_OE, ch, flag); ignore_char: - lsr = serial_inp(up, UART_LSR); + lsr = serial_in(up, UART_LSR); } while ((lsr & (UART_LSR_DR | UART_LSR_BI)) && (max_count-- > 0)); spin_unlock(&up->port.lock); tty_flip_buffer_push(tty); @@ -1460,7 +1452,7 @@ void serial8250_tx_chars(struct uart_8250_port *up) int count; if (up->port.x_char) { - serial_outp(up, UART_TX, up->port.x_char); + serial_out(up, UART_TX, up->port.x_char); up->port.icount.tx++; up->port.x_char = 0; return; @@ -1532,7 +1524,7 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir) spin_lock_irqsave(&up->port.lock, flags); - status = serial_inp(up, UART_LSR); + status = serial_in(up, UART_LSR); DEBUG_INTR("status = %x...", status); @@ -1894,12 +1886,12 @@ static int serial8250_get_poll_char(struct uart_port *port) { struct uart_8250_port *up = container_of(port, struct uart_8250_port, port); - unsigned char lsr = serial_inp(up, UART_LSR); + unsigned char lsr = serial_in(up, UART_LSR); if (!(lsr & UART_LSR_DR)) return NO_POLL_CHAR; - return serial_inp(up, UART_RX); + return serial_in(up, UART_RX); } @@ -1959,14 +1951,14 @@ static int serial8250_startup(struct uart_port *port) if (up->port.type == PORT_16C950) { /* Wake up and initialize UART */ up->acr = 0; - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_B); - serial_outp(up, UART_EFR, UART_EFR_ECB); - serial_outp(up, UART_IER, 0); - serial_outp(up, UART_LCR, 0); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(up, UART_EFR, UART_EFR_ECB); + serial_out(up, UART_IER, 0); + serial_out(up, UART_LCR, 0); serial_icr_write(up, UART_CSR, 0); /* Reset the UART */ - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_B); - serial_outp(up, UART_EFR, UART_EFR_ECB); - serial_outp(up, UART_LCR, 0); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(up, UART_EFR, UART_EFR_ECB); + serial_out(up, UART_LCR, 0); } #ifdef CONFIG_SERIAL_8250_RSA @@ -1986,10 +1978,10 @@ static int serial8250_startup(struct uart_port *port) /* * Clear the interrupt registers. */ - (void) serial_inp(up, UART_LSR); - (void) serial_inp(up, UART_RX); - (void) serial_inp(up, UART_IIR); - (void) serial_inp(up, UART_MSR); + (void) serial_in(up, UART_LSR); + (void) serial_in(up, UART_RX); + (void) serial_in(up, UART_IIR); + (void) serial_in(up, UART_MSR); /* * At this point, there's no way the LSR could still be 0xff; @@ -1997,7 +1989,7 @@ static int serial8250_startup(struct uart_port *port) * here. */ if (!(up->port.flags & UPF_BUGGY_UART) && - (serial_inp(up, UART_LSR) == 0xff)) { + (serial_in(up, UART_LSR) == 0xff)) { printk_ratelimited(KERN_INFO "ttyS%d: LSR safety check engaged!\n", serial_index(&up->port)); return -ENODEV; @@ -2009,15 +2001,15 @@ static int serial8250_startup(struct uart_port *port) if (up->port.type == PORT_16850) { unsigned char fctr; - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); - fctr = serial_inp(up, UART_FCTR) & ~(UART_FCTR_RX|UART_FCTR_TX); - serial_outp(up, UART_FCTR, fctr | UART_FCTR_TRGD | UART_FCTR_RX); - serial_outp(up, UART_TRG, UART_TRG_96); - serial_outp(up, UART_FCTR, fctr | UART_FCTR_TRGD | UART_FCTR_TX); - serial_outp(up, UART_TRG, UART_TRG_96); + fctr = serial_in(up, UART_FCTR) & ~(UART_FCTR_RX|UART_FCTR_TX); + serial_out(up, UART_FCTR, fctr | UART_FCTR_TRGD | UART_FCTR_RX); + serial_out(up, UART_TRG, UART_TRG_96); + serial_out(up, UART_FCTR, fctr | UART_FCTR_TRGD | UART_FCTR_TX); + serial_out(up, UART_TRG, UART_TRG_96); - serial_outp(up, UART_LCR, 0); + serial_out(up, UART_LCR, 0); } if (up->port.irq) { @@ -2087,7 +2079,7 @@ static int serial8250_startup(struct uart_port *port) /* * Now, initialize the UART */ - serial_outp(up, UART_LCR, UART_LCR_WLEN8); + serial_out(up, UART_LCR, UART_LCR_WLEN8); spin_lock_irqsave(&up->port.lock, flags); if (up->port.flags & UPF_FOURPORT) { @@ -2120,10 +2112,10 @@ static int serial8250_startup(struct uart_port *port) * Do a quick test to see if we receive an * interrupt when we enable the TX irq. */ - serial_outp(up, UART_IER, UART_IER_THRI); + serial_out(up, UART_IER, UART_IER_THRI); lsr = serial_in(up, UART_LSR); iir = serial_in(up, UART_IIR); - serial_outp(up, UART_IER, 0); + serial_out(up, UART_IER, 0); if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT) { if (!(up->bugs & UART_BUG_TXEN)) { @@ -2143,10 +2135,10 @@ dont_test_tx_en: * saved flags to avoid getting false values from polling * routines or the previous session. */ - serial_inp(up, UART_LSR); - serial_inp(up, UART_RX); - serial_inp(up, UART_IIR); - serial_inp(up, UART_MSR); + serial_in(up, UART_LSR); + serial_in(up, UART_RX); + serial_in(up, UART_IIR); + serial_in(up, UART_MSR); up->lsr_saved_flags = 0; up->msr_saved_flags = 0; @@ -2156,7 +2148,7 @@ dont_test_tx_en: * anyway, so we don't enable them here. */ up->ier = UART_IER_RLSI | UART_IER_RDI; - serial_outp(up, UART_IER, up->ier); + serial_out(up, UART_IER, up->ier); if (up->port.flags & UPF_FOURPORT) { unsigned int icp; @@ -2181,7 +2173,7 @@ static void serial8250_shutdown(struct uart_port *port) * Disable interrupts from this port */ up->ier = 0; - serial_outp(up, UART_IER, 0); + serial_out(up, UART_IER, 0); spin_lock_irqsave(&up->port.lock, flags); if (up->port.flags & UPF_FOURPORT) { @@ -2197,7 +2189,7 @@ static void serial8250_shutdown(struct uart_port *port) /* * Disable break condition and FIFOs */ - serial_out(up, UART_LCR, serial_inp(up, UART_LCR) & ~UART_LCR_SBC); + serial_out(up, UART_LCR, serial_in(up, UART_LCR) & ~UART_LCR_SBC); serial8250_clear_fifos(up); #ifdef CONFIG_SERIAL_8250_RSA @@ -2374,11 +2366,11 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, if (termios->c_cflag & CRTSCTS) efr |= UART_EFR_CTS; - serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_B); + serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); if (up->port.flags & UPF_EXAR_EFR) - serial_outp(up, UART_XR_EFR, efr); + serial_out(up, UART_XR_EFR, efr); else - serial_outp(up, UART_EFR, efr); + serial_out(up, UART_EFR, efr); } #ifdef CONFIG_ARCH_OMAP @@ -2394,9 +2386,9 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, if (up->capabilities & UART_NATSEMI) { /* Switch to bank 2 not bank 1, to avoid resetting EXCR2 */ - serial_outp(up, UART_LCR, 0xe0); + serial_out(up, UART_LCR, 0xe0); } else { - serial_outp(up, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */ + serial_out(up, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */ } serial_dl_write(up, quot); @@ -2406,16 +2398,16 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, * is written without DLAB set, this mode will be disabled. */ if (up->port.type == PORT_16750) - serial_outp(up, UART_FCR, fcr); + serial_out(up, UART_FCR, fcr); - serial_outp(up, UART_LCR, cval); /* reset DLAB */ + serial_out(up, UART_LCR, cval); /* reset DLAB */ up->lcr = cval; /* Save LCR */ if (up->port.type != PORT_16750) { if (fcr & UART_FCR_ENABLE_FIFO) { /* emulated UARTs (Lucent Venus 167x) need two steps */ - serial_outp(up, UART_FCR, UART_FCR_ENABLE_FIFO); + serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO); } - serial_outp(up, UART_FCR, fcr); /* set fcr */ + serial_out(up, UART_FCR, fcr); /* set fcr */ } serial8250_set_mctrl(&up->port, up->port.mctrl); spin_unlock_irqrestore(&up->port.lock, flags); @@ -2997,11 +2989,11 @@ void serial8250_resume_port(int line) if (up->capabilities & UART_NATSEMI) { /* Ensure it's still in high speed mode */ - serial_outp(up, UART_LCR, 0xE0); + serial_out(up, UART_LCR, 0xE0); ns16550a_goto_highspeed(up); - serial_outp(up, UART_LCR, 0); + serial_out(up, UART_LCR, 0); up->port.uartclk = 921600*16; } uart_resume_port(&serial8250_reg, &up->port); |