summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/serial/21285.c2
-rw-r--r--drivers/serial/8250_hp300.c53
-rw-r--r--drivers/serial/amba-pl010.c2
-rw-r--r--drivers/serial/amba-pl011.c2
-rw-r--r--drivers/serial/clps711x.c65
-rw-r--r--drivers/serial/s3c2410.c2
-rw-r--r--drivers/serial/sa1100.c65
-rw-r--r--drivers/serial/serial_lh7a40x.c2
8 files changed, 83 insertions, 110 deletions
diff --git a/drivers/serial/21285.c b/drivers/serial/21285.c
index f8504b0adeb..33fbda79f35 100644
--- a/drivers/serial/21285.c
+++ b/drivers/serial/21285.c
@@ -110,7 +110,7 @@ static irqreturn_t serial21285_rx_chars(int irq, void *dev_id, struct pt_regs *r
port->icount.rx++;
rxs = *CSR_RXSTAT | RXSTAT_DUMMY_READ;
- if (rxs & RXSTAT_ANYERR) {
+ if (unlikely(rxs & RXSTAT_ANYERR)) {
if (rxs & RXSTAT_PARITY)
port->icount.parity++;
else if (rxs & RXSTAT_FRAME)
diff --git a/drivers/serial/8250_hp300.c b/drivers/serial/8250_hp300.c
index b8d51eb56bf..4315afe9c08 100644
--- a/drivers/serial/8250_hp300.c
+++ b/drivers/serial/8250_hp300.c
@@ -9,15 +9,15 @@
#include <linux/init.h>
#include <linux/string.h>
#include <linux/kernel.h>
-#include <linux/tty.h>
#include <linux/serial.h>
-#include <linux/serialP.h>
#include <linux/serial_core.h>
#include <linux/delay.h>
#include <linux/dio.h>
#include <linux/console.h>
#include <asm/io.h>
+#include "8250.h"
+
#if !defined(CONFIG_HPDCA) && !defined(CONFIG_HPAPCI)
#warning CONFIG_8250 defined but neither CONFIG_HPDCA nor CONFIG_HPAPCI defined, are you sure?
#endif
@@ -163,7 +163,7 @@ int __init hp300_setup_serial_console(void)
static int __devinit hpdca_init_one(struct dio_dev *d,
const struct dio_device_id *ent)
{
- struct serial_struct serial_req;
+ struct uart_port port;
int line;
#ifdef CONFIG_SERIAL_8250_CONSOLE
@@ -172,21 +172,22 @@ static int __devinit hpdca_init_one(struct dio_dev *d,
return 0;
}
#endif
- memset(&serial_req, 0, sizeof(struct serial_struct));
+ memset(&port, 0, sizeof(struct uart_port));
/* Memory mapped I/O */
- serial_req.io_type = SERIAL_IO_MEM;
- serial_req.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF;
- serial_req.irq = d->ipl;
- serial_req.baud_base = HPDCA_BAUD_BASE;
- serial_req.iomap_base = (d->resource.start + UART_OFFSET);
- serial_req.iomem_base = (char *)(serial_req.iomap_base + DIO_VIRADDRBASE);
- serial_req.iomem_reg_shift = 1;
- line = register_serial(&serial_req);
+ port.iotype = UPIO_MEM;
+ port.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF;
+ port.irq = d->ipl;
+ port.uartclk = HPDCA_BAUD_BASE * 16;
+ port.mapbase = (d->resource.start + UART_OFFSET);
+ port.membase = (char *)(port.mapbase + DIO_VIRADDRBASE);
+ port.regshift = 1;
+ port.dev = &d->dev;
+ line = serial8250_register_port(&port);
if (line < 0) {
printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
- " irq %d failed\n", d->scode, serial_req.irq);
+ " irq %d failed\n", d->scode, port.irq);
return -ENOMEM;
}
@@ -209,7 +210,7 @@ static int __init hp300_8250_init(void)
#ifdef CONFIG_HPAPCI
int line;
unsigned long base;
- struct serial_struct serial_req;
+ struct uart_port uport;
struct hp300_port *port;
int i;
#endif
@@ -251,25 +252,25 @@ static int __init hp300_8250_init(void)
if (!port)
return -ENOMEM;
- memset(&serial_req, 0, sizeof(struct serial_struct));
+ memset(&uport, 0, sizeof(struct uart_port));
base = (FRODO_BASE + FRODO_APCI_OFFSET(i));
/* Memory mapped I/O */
- serial_req.io_type = SERIAL_IO_MEM;
- serial_req.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF;
+ uport.iotype = UPIO_MEM;
+ uport.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF;
/* XXX - no interrupt support yet */
- serial_req.irq = 0;
- serial_req.baud_base = HPAPCI_BAUD_BASE;
- serial_req.iomap_base = base;
- serial_req.iomem_base = (char *)(serial_req.iomap_base + DIO_VIRADDRBASE);
- serial_req.iomem_reg_shift = 2;
+ uport.irq = 0;
+ uport.uartclk = HPAPCI_BAUD_BASE * 16;
+ uport.mapbase = base;
+ uport.membase = (char *)(base + DIO_VIRADDRBASE);
+ uport.regshift = 2;
- line = register_serial(&serial_req);
+ line = serial8250_register_port(&uport);
if (line < 0) {
printk(KERN_NOTICE "8250_hp300: register_serial() APCI %d"
- " irq %d failed\n", i, serial_req.irq);
+ " irq %d failed\n", i, uport.irq);
kfree(port);
continue;
}
@@ -299,7 +300,7 @@ static void __devexit hpdca_remove_one(struct dio_dev *d)
/* Disable board-interrupts */
out_8(d->resource.start + DIO_VIRADDRBASE + DCA_IC, 0);
}
- unregister_serial(line);
+ serial8250_unregister_port(line);
}
#endif
@@ -309,7 +310,7 @@ static void __exit hp300_8250_exit(void)
struct hp300_port *port, *to_free;
for (port = hp300_ports; port; ) {
- unregister_serial(port->line);
+ serial8250_unregister_port(port->line);
to_free = port;
port = port->next;
kfree(to_free);
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 484f6fb900b..f2a5e2933c4 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -172,7 +172,7 @@ pl010_rx_chars(struct uart_port *port)
* out of the main execution path
*/
rsr = UART_GET_RSR(port) | UART_DUMMY_RSR_RX;
- if (rsr & UART01x_RSR_ANY) {
+ if (unlikely(rsr & UART01x_RSR_ANY)) {
if (rsr & UART01x_RSR_BE) {
rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE);
port->icount.brk++;
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index ff658a830f3..d5cbef3fe8b 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -137,7 +137,7 @@ pl011_rx_chars(struct uart_amba_port *uap)
* out of the main execution path
*/
rsr = readw(uap->port.membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
- if (rsr & UART01x_RSR_ANY) {
+ if (unlikely(rsr & UART01x_RSR_ANY)) {
if (rsr & UART01x_RSR_BE) {
rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE);
uap->port.icount.brk++;
diff --git a/drivers/serial/clps711x.c b/drivers/serial/clps711x.c
index 16592fae47f..6242f3090a9 100644
--- a/drivers/serial/clps711x.c
+++ b/drivers/serial/clps711x.c
@@ -116,54 +116,43 @@ static irqreturn_t clps711xuart_int_rx(int irq, void *dev_id, struct pt_regs *re
* Note that the error handling code is
* out of the main execution path
*/
- if (ch & UART_ANY_ERR)
- goto handle_error;
+ if (unlikely(ch & UART_ANY_ERR)) {
+ if (ch & UARTDR_PARERR)
+ port->icount.parity++;
+ else if (ch & UARTDR_FRMERR)
+ port->icount.frame++;
+ if (ch & UARTDR_OVERR)
+ port->icount.overrun++;
- if (uart_handle_sysrq_char(port, ch, regs))
- goto ignore_char;
+ ch &= port->read_status_mask;
- error_return:
- tty_insert_flip_char(tty, ch, flg);
- ignore_char:
- status = clps_readl(SYSFLG(port));
- }
- out:
- tty_flip_buffer_push(tty);
- return IRQ_HANDLED;
+ if (ch & UARTDR_PARERR)
+ flg = TTY_PARITY;
+ else if (ch & UARTDR_FRMERR)
+ flg = TTY_FRAME;
- handle_error:
- if (ch & UARTDR_PARERR)
- port->icount.parity++;
- else if (ch & UARTDR_FRMERR)
- port->icount.frame++;
- if (ch & UARTDR_OVERR)
- port->icount.overrun++;
-
- if (ch & port->ignore_status_mask) {
- if (++ignored > 100)
- goto out;
- goto ignore_char;
- }
- ch &= port->read_status_mask;
+#ifdef SUPPORT_SYSRQ
+ port->sysrq = 0;
+#endif
+ }
- if (ch & UARTDR_PARERR)
- flg = TTY_PARITY;
- else if (ch & UARTDR_FRMERR)
- flg = TTY_FRAME;
+ if (uart_handle_sysrq_char(port, ch, regs))
+ goto ignore_char;
- if (ch & UARTDR_OVERR) {
/*
* CHECK: does overrun affect the current character?
* ASSUMPTION: it does not.
*/
- tty_insert_flip_char(tty, ch, flg);
- ch = 0;
- flg = TTY_OVERRUN;
+ if ((ch & port->ignore_status_mask & ~RXSTAT_OVERRUN) == 0)
+ tty_insert_flip_char(tty, ch, flg);
+ if ((ch & ~port->ignore_status_mask & RXSTAT_OVERRUN) == 0)
+ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+
+ ignore_char:
+ status = clps_readl(SYSFLG(port));
}
-#ifdef SUPPORT_SYSRQ
- port->sysrq = 0;
-#endif
- goto error_return;
+ tty_flip_buffer_push(tty);
+ return IRQ_HANDLED;
}
static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id, struct pt_regs *regs)
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index bd6782aeb83..435750d40a4 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -364,7 +364,7 @@ s3c24xx_serial_rx_chars(int irq, void *dev_id, struct pt_regs *regs)
flag = TTY_NORMAL;
port->icount.rx++;
- if (uerstat & S3C2410_UERSTAT_ANY) {
+ if (unlikely(uerstat & S3C2410_UERSTAT_ANY)) {
dbg("rxerr: port ch=0x%02x, rxs=0x%08x\n",
ch, uerstat);
diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index 086065210d1..157218bc6c6 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -214,56 +214,39 @@ sa1100_rx_chars(struct sa1100_port *sport, struct pt_regs *regs)
* note that the error handling code is
* out of the main execution path
*/
- if (status & UTSR1_TO_SM(UTSR1_PRE | UTSR1_FRE | UTSR1_ROR))
- goto handle_error;
+ if (status & UTSR1_TO_SM(UTSR1_PRE | UTSR1_FRE | UTSR1_ROR)) {
+ if (status & UTSR1_TO_SM(UTSR1_PRE))
+ sport->port.icount.parity++;
+ else if (status & UTSR1_TO_SM(UTSR1_FRE))
+ sport->port.icount.frame++;
+ if (status & UTSR1_TO_SM(UTSR1_ROR))
+ sport->port.icount.overrun++;
+
+ status &= sport->port.read_status_mask;
+
+ if (status & UTSR1_TO_SM(UTSR1_PRE))
+ flg = TTY_PARITY;
+ else if (status & UTSR1_TO_SM(UTSR1_FRE))
+ flg = TTY_FRAME;
+
+#ifdef SUPPORT_SYSRQ
+ sport->port.sysrq = 0;
+#endif
+ }
if (uart_handle_sysrq_char(&sport->port, ch, regs))
goto ignore_char;
- error_return:
- tty_insert_flip_char(tty, ch, flg);
+ if ((status & port->ignore_status_mask & ~UTSR1_TO_SM(UTSR1_ROR)) == 0)
+ tty_insert_flip_char(tty, ch, flg);
+ if (status & ~port->ignore_status_mask & UTSR1_TO_SM(UTSR1_ROR))
+ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+
ignore_char:
status = UTSR1_TO_SM(UART_GET_UTSR1(sport)) |
UTSR0_TO_SM(UART_GET_UTSR0(sport));
}
- out:
tty_flip_buffer_push(tty);
- return;
-
- handle_error:
- if (status & UTSR1_TO_SM(UTSR1_PRE))
- sport->port.icount.parity++;
- else if (status & UTSR1_TO_SM(UTSR1_FRE))
- sport->port.icount.frame++;
- if (status & UTSR1_TO_SM(UTSR1_ROR))
- sport->port.icount.overrun++;
-
- if (status & sport->port.ignore_status_mask) {
- if (++ignored > 100)
- goto out;
- goto ignore_char;
- }
-
- status &= sport->port.read_status_mask;
-
- if (status & UTSR1_TO_SM(UTSR1_PRE))
- flg = TTY_PARITY;
- else if (status & UTSR1_TO_SM(UTSR1_FRE))
- flg = TTY_FRAME;
-
- if (status & UTSR1_TO_SM(UTSR1_ROR)) {
- /*
- * overrun does *not* affect the character
- * we read from the FIFO
- */
- tty_insert_flip_char(tty, ch, flg);
- ch = 0;
- flg = TTY_OVERRUN;
- }
-#ifdef SUPPORT_SYSRQ
- sport->port.sysrq = 0;
-#endif
- goto error_return;
}
static void sa1100_tx_chars(struct sa1100_port *sport)
diff --git a/drivers/serial/serial_lh7a40x.c b/drivers/serial/serial_lh7a40x.c
index 4ce3a41f161..85cfa08d3ba 100644
--- a/drivers/serial/serial_lh7a40x.c
+++ b/drivers/serial/serial_lh7a40x.c
@@ -162,7 +162,7 @@ lh7a40xuart_rx_chars (struct uart_port* port)
flag = TTY_NORMAL;
++port->icount.rx;
- if (data & RxError) { /* Quick check, short-circuit */
+ if (unlikely(data & RxError)) { /* Quick check, short-circuit */
if (data & RxBreak) {
data &= ~(RxFramingError | RxParityError);
++port->icount.brk;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-29 03:26:59 +0000