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-rw-r--r--drivers/serial/68360serial.c3
-rw-r--r--drivers/serial/8250.c9
-rw-r--r--drivers/serial/8250_pci.c2
-rw-r--r--drivers/serial/atmel_serial.c1
-rw-r--r--drivers/serial/crisv10.c7
-rw-r--r--drivers/serial/dz.c2
-rw-r--r--drivers/serial/serial_core.c15
-rw-r--r--drivers/serial/vr41xx_siu.c15
8 files changed, 42 insertions, 12 deletions
diff --git a/drivers/serial/68360serial.c b/drivers/serial/68360serial.c
index 2aa6bfe8fdb3..f59463601874 100644
--- a/drivers/serial/68360serial.c
+++ b/drivers/serial/68360serial.c
@@ -51,6 +51,7 @@ extern int kgdb_output_string (const char* s, unsigned int count);
/* #ifdef CONFIG_SERIAL_CONSOLE */ /* This seems to be a post 2.0 thing - mles */
#include <linux/console.h>
+#include <linux/jiffies.h>
/* this defines the index into rs_table for the port to use
*/
@@ -1729,7 +1730,7 @@ static void rs_360_wait_until_sent(struct tty_struct *tty, int timeout)
msleep_interruptible(jiffies_to_msecs(char_time));
if (signal_pending(current))
break;
- if (timeout && ((orig_jiffies + timeout) < jiffies))
+ if (timeout && (time_after(jiffies, orig_jiffies + timeout)))
break;
/* The 'tx_cur' is really the next buffer to send. We
* have to back up to the previous BD and wait for it
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 96a585e1cee8..ea41f2626458 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1868,6 +1868,7 @@ static int serial8250_startup(struct uart_port *port)
}
if (is_real_interrupt(up->port.irq)) {
+ unsigned char iir1;
/*
* Test for UARTs that do not reassert THRE when the
* transmitter is idle and the interrupt has already
@@ -1881,7 +1882,7 @@ static int serial8250_startup(struct uart_port *port)
wait_for_xmitr(up, UART_LSR_THRE);
serial_out_sync(up, UART_IER, UART_IER_THRI);
udelay(1); /* allow THRE to set */
- serial_in(up, UART_IIR);
+ iir1 = serial_in(up, UART_IIR);
serial_out(up, UART_IER, 0);
serial_out_sync(up, UART_IER, UART_IER_THRI);
udelay(1); /* allow a working UART time to re-assert THRE */
@@ -1894,7 +1895,7 @@ static int serial8250_startup(struct uart_port *port)
* If the interrupt is not reasserted, setup a timer to
* kick the UART on a regular basis.
*/
- if (iir & UART_IIR_NO_INT) {
+ if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) {
pr_debug("ttyS%d - using backup timer\n", port->line);
up->timer.function = serial8250_backup_timeout;
up->timer.data = (unsigned long)up;
@@ -2228,7 +2229,9 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
}
serial8250_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
- tty_termios_encode_baud_rate(termios, baud, baud);
+ /* Don't rewrite B0 */
+ if (tty_termios_baud_rate(termios))
+ tty_termios_encode_baud_rate(termios, baud, baud);
}
static void
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index f97224ce59da..6e57382b9137 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -775,7 +775,7 @@ pci_default_setup(struct serial_private *priv, struct pciserial_board *board,
* This list is ordered alphabetically by vendor then device.
* Specific entries must come before more generic entries.
*/
-static struct pci_serial_quirk pci_serial_quirks[] = {
+static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
/*
* ADDI-DATA GmbH communication cards <info@addi-data.com>
*/
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 55492fa095a2..c065a704a93a 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -96,7 +96,6 @@
/* PDC registers */
#define UART_PUT_PTCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_PTCR)
-#define UART_GET_TCR(port) __raw_readl((port)->membase + ATMEL_PDC_TCR)
#define UART_GET_PTSR(port) __raw_readl((port)->membase + ATMEL_PDC_PTSR)
#define UART_PUT_RPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RPR)
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 383c4e660cd5..88e7c1d5b919 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -3582,6 +3582,8 @@ rs_tiocmset(struct tty_struct *tty, struct file *file,
{
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
+ lock_kernel();
+
if (clear & TIOCM_RTS)
e100_rts(info, 0);
if (clear & TIOCM_DTR)
@@ -3601,6 +3603,8 @@ rs_tiocmset(struct tty_struct *tty, struct file *file,
e100_ri_out(info, 1);
if (set & TIOCM_CD)
e100_cd_out(info, 1);
+
+ unlock_kernel();
return 0;
}
@@ -3610,6 +3614,7 @@ rs_tiocmget(struct tty_struct *tty, struct file *file)
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
unsigned int result;
+ lock_kernel();
result =
(!E100_RTS_GET(info) ? TIOCM_RTS : 0)
| (!E100_DTR_GET(info) ? TIOCM_DTR : 0)
@@ -3618,6 +3623,8 @@ rs_tiocmget(struct tty_struct *tty, struct file *file)
| (!E100_CD_GET(info) ? TIOCM_CAR : 0)
| (!E100_CTS_GET(info) ? TIOCM_CTS : 0);
+ unlock_kernel();
+
#ifdef SERIAL_DEBUG_IO
printk(KERN_DEBUG "ser%i: modem state: %i 0x%08X\n",
info->line, result, result);
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index 116211fcd36f..0dddd68b20d2 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -819,7 +819,7 @@ static void dz_console_putchar(struct uart_port *uport, int ch)
dz_out(dport, DZ_TCR, mask);
iob();
udelay(2);
- } while (loops--);
+ } while (--loops);
if (loops) /* Cannot send otherwise. */
dz_out(dport, DZ_TDR, ch);
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index a9ca03ead3e5..977ce820ce30 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -329,13 +329,15 @@ EXPORT_SYMBOL(uart_update_timeout);
* If it's still invalid, we try 9600 baud.
*
* Update the @termios structure to reflect the baud rate
- * we're actually going to be using.
+ * we're actually going to be using. Don't do this for the case
+ * where B0 is requested ("hang up").
*/
unsigned int
uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
struct ktermios *old, unsigned int min, unsigned int max)
{
unsigned int try, baud, altbaud = 38400;
+ int hung_up = 0;
upf_t flags = port->flags & UPF_SPD_MASK;
if (flags == UPF_SPD_HI)
@@ -360,8 +362,10 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
/*
* Special case: B0 rate.
*/
- if (baud == 0)
+ if (baud == 0) {
+ hung_up = 1;
baud = 9600;
+ }
if (baud >= min && baud <= max)
return baud;
@@ -373,7 +377,9 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
termios->c_cflag &= ~CBAUD;
if (old) {
baud = tty_termios_baud_rate(old);
- tty_termios_encode_baud_rate(termios, baud, baud);
+ if (!hung_up)
+ tty_termios_encode_baud_rate(termios,
+ baud, baud);
old = NULL;
continue;
}
@@ -382,7 +388,8 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
* As a last resort, if the quotient is zero,
* default to 9600 bps
*/
- tty_termios_encode_baud_rate(termios, 9600, 9600);
+ if (!hung_up)
+ tty_termios_encode_baud_rate(termios, 9600, 9600);
}
return 0;
diff --git a/drivers/serial/vr41xx_siu.c b/drivers/serial/vr41xx_siu.c
index 98ab649c1ff9..bb6ce6bba32f 100644
--- a/drivers/serial/vr41xx_siu.c
+++ b/drivers/serial/vr41xx_siu.c
@@ -1,7 +1,7 @@
/*
* Driver for NEC VR4100 series Serial Interface Unit.
*
- * Copyright (C) 2004-2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ * Copyright (C) 2004-2008 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
*
* Based on drivers/serial/8250.c, by Russell King.
*
@@ -840,6 +840,19 @@ static int __devinit siu_console_init(void)
console_initcall(siu_console_init);
+void __init vr41xx_siu_early_setup(struct uart_port *port)
+{
+ if (port->type == PORT_UNKNOWN)
+ return;
+
+ siu_uart_ports[port->line].line = port->line;
+ siu_uart_ports[port->line].type = port->type;
+ siu_uart_ports[port->line].uartclk = SIU_BAUD_BASE * 16;
+ siu_uart_ports[port->line].mapbase = port->mapbase;
+ siu_uart_ports[port->line].mapbase = port->mapbase;
+ siu_uart_ports[port->line].ops = &siu_uart_ops;
+}
+
#define SERIAL_VR41XX_CONSOLE &siu_console
#else
#define SERIAL_VR41XX_CONSOLE NULL
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