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Kernel
提交 138307b4 编写于 作者: L Linus Torvalds
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Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-serial

上级 66f37673 bc49a661
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Documentation/serial/driver
浏览文件 @ 138307b4
......@@ -111,24 +111,17 @@ hardware.
Interrupts: locally disabled.
This call must not sleep
stop_tx(port,tty_stop)
stop_tx(port)
Stop transmitting characters. This might be due to the CTS
line becoming inactive or the tty layer indicating we want
to stop transmission.
tty_stop: 1 if this call is due to the TTY layer issuing a
TTY stop to the driver (equiv to rs_stop).
to stop transmission due to an XOFF character.
Locking: port->lock taken.
Interrupts: locally disabled.
This call must not sleep
start_tx(port,tty_start)
start transmitting characters. (incidentally, nonempty will
always be nonzero, and shouldn't be used - it will be dropped).
tty_start: 1 if this call was due to the TTY layer issuing
a TTY start to the driver (equiv to rs_start)
start_tx(port)
start transmitting characters.
Locking: port->lock taken.
Interrupts: locally disabled.
......
drivers/char/mwave/mwavedd.c
浏览文件 @ 138307b4
......@@ -57,6 +57,7 @@
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/serial_8250.h>
#include "smapi.h"
#include "mwavedd.h"
#include "3780i.h"
......@@ -410,8 +411,8 @@ static ssize_t mwave_write(struct file *file, const char __user *buf,
static int register_serial_portandirq(unsigned int port, int irq)
{
struct serial_struct serial;
struct uart_port uart;
switch ( port ) {
case 0x3f8:
case 0x2f8:
......@@ -442,12 +443,14 @@ static int register_serial_portandirq(unsigned int port, int irq)
} /* switch */
/* irq is okay */
memset(&serial, 0, sizeof(serial));
serial.port = port;
serial.irq = irq;
serial.flags = ASYNC_SHARE_IRQ;
return register_serial(&serial);
memset(&uart, 0, sizeof(struct uart_port));
uart.uartclk = 1843200;
uart.iobase = port;
uart.irq = irq;
uart.iotype = UPIO_PORT;
uart.flags = UPF_SHARE_IRQ;
return serial8250_register_port(&uart);
}
......@@ -523,7 +526,7 @@ static void mwave_exit(void)
#endif
if ( pDrvData->sLine >= 0 ) {
unregister_serial(pDrvData->sLine);
serial8250_unregister_port(pDrvData->sLine);
}
if (pDrvData->bMwaveDevRegistered) {
misc_deregister(&mwave_misc_dev);
......
drivers/misc/Kconfig
浏览文件 @ 138307b4
......@@ -6,7 +6,7 @@ menu "Misc devices"
config IBM_ASM
tristate "Device driver for IBM RSA service processor"
depends on X86 && PCI && EXPERIMENTAL
depends on X86 && PCI && EXPERIMENTAL && BROKEN
---help---
This option enables device driver support for in-band access to the
IBM RSA (Condor) service processor in eServer xSeries systems.
......
drivers/net/Kconfig
浏览文件 @ 138307b4
......@@ -447,7 +447,7 @@ config NET_SB1250_MAC
config SGI_IOC3_ETH
bool "SGI IOC3 Ethernet"
depends on NET_ETHERNET && PCI && SGI_IP27
depends on NET_ETHERNET && PCI && SGI_IP27 && BROKEN
select CRC32
select MII
help
......
drivers/serial/21285.c
浏览文件 @ 138307b4
......@@ -58,8 +58,7 @@ static const char serial21285_name[] = "Footbridge UART";
* int((BAUD_BASE - (baud >> 1)) / baud)
*/
static void
serial21285_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void serial21285_stop_tx(struct uart_port *port)
{
if (tx_enabled(port)) {
disable_irq(IRQ_CONTX);
......@@ -67,8 +66,7 @@ serial21285_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
}
static void
serial21285_start_tx(struct uart_port *port, unsigned int tty_start)
static void serial21285_start_tx(struct uart_port *port)
{
if (!tx_enabled(port)) {
enable_irq(IRQ_CONTX);
......@@ -148,7 +146,7 @@ static irqreturn_t serial21285_tx_chars(int irq, void *dev_id, struct pt_regs *r
goto out;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
serial21285_stop_tx(port, 0);
serial21285_stop_tx(port);
goto out;
}
......@@ -164,7 +162,7 @@ static irqreturn_t serial21285_tx_chars(int irq, void *dev_id, struct pt_regs *r
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
serial21285_stop_tx(port, 0);
serial21285_stop_tx(port);
out:
return IRQ_HANDLED;
......
drivers/serial/8250.c
浏览文件 @ 138307b4
......@@ -1001,7 +1001,7 @@ static inline void __stop_tx(struct uart_8250_port *p)
}
}
static void serial8250_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void serial8250_stop_tx(struct uart_port *port)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
......@@ -1018,7 +1018,7 @@ static void serial8250_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void transmit_chars(struct uart_8250_port *up);
static void serial8250_start_tx(struct uart_port *port, unsigned int tty_start)
static void serial8250_start_tx(struct uart_port *port)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
......@@ -1158,7 +1158,11 @@ static _INLINE_ void transmit_chars(struct uart_8250_port *up)
up->port.x_char = 0;
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
if (uart_tx_stopped(&up->port)) {
serial8250_stop_tx(&up->port);
return;
}
if (uart_circ_empty(xmit)) {
__stop_tx(up);
return;
}
......@@ -2586,82 +2590,3 @@ module_param_array(probe_rsa, ulong, &probe_rsa_count, 0444);
MODULE_PARM_DESC(probe_rsa, "Probe I/O ports for RSA");
#endif
MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR);
/**
* register_serial - configure a 16x50 serial port at runtime
* @req: request structure
*
* Configure the serial port specified by the request. If the
* port exists and is in use an error is returned. If the port
* is not currently in the table it is added.
*
* The port is then probed and if necessary the IRQ is autodetected
* If this fails an error is returned.
*
* On success the port is ready to use and the line number is returned.
*
* Note: this function is deprecated - use serial8250_register_port
* instead.
*/
int register_serial(struct serial_struct *req)
{
struct uart_port port;
port.iobase = req->port;
port.membase = req->iomem_base;
port.irq = req->irq;
port.uartclk = req->baud_base * 16;
port.fifosize = req->xmit_fifo_size;
port.regshift = req->iomem_reg_shift;
port.iotype = req->io_type;
port.flags = req->flags | UPF_BOOT_AUTOCONF;
port.mapbase = req->iomap_base;
port.dev = NULL;
if (share_irqs)
port.flags |= UPF_SHARE_IRQ;
if (HIGH_BITS_OFFSET)
port.iobase |= (long) req->port_high << HIGH_BITS_OFFSET;
/*
* If a clock rate wasn't specified by the low level driver, then
* default to the standard clock rate. This should be 115200 (*16)
* and should not depend on the architecture's BASE_BAUD definition.
* However, since this API will be deprecated, it's probably a
* better idea to convert the drivers to use the new API
* (serial8250_register_port and serial8250_unregister_port).
*/
if (port.uartclk == 0) {
printk(KERN_WARNING
"Serial: registering port at [%08x,%08lx,%p] irq %d with zero baud_base\n",
port.iobase, port.mapbase, port.membase, port.irq);
printk(KERN_WARNING "Serial: see %s:%d for more information\n",
__FILE__, __LINE__);
dump_stack();
/*
* Fix it up for now, but this is only a temporary measure.
*/
port.uartclk = BASE_BAUD * 16;
}
return serial8250_register_port(&port);
}
EXPORT_SYMBOL(register_serial);
/**
* unregister_serial - remove a 16x50 serial port at runtime
* @line: serial line number
*
* Remove one serial port. This may not be called from interrupt
* context. We hand the port back to our local PM control.
*
* Note: this function is deprecated - use serial8250_unregister_port
* instead.
*/
void unregister_serial(int line)
{
serial8250_unregister_port(line);
}
EXPORT_SYMBOL(unregister_serial);
drivers/serial/8250.h
浏览文件 @ 138307b4
......@@ -16,11 +16,7 @@
*/
#include <linux/config.h>
int serial8250_register_port(struct uart_port *);
void serial8250_unregister_port(int line);
void serial8250_suspend_port(int line);
void serial8250_resume_port(int line);
#include <linux/serial_8250.h>
struct old_serial_port {
unsigned int uart;
......
drivers/serial/Kconfig
浏览文件 @ 138307b4
......@@ -830,7 +830,7 @@ config SERIAL_M32R_PLDSIO
config SERIAL_TXX9
bool "TMPTX39XX/49XX SIO support"
depends HAS_TXX9_SERIAL
depends HAS_TXX9_SERIAL && BROKEN
select SERIAL_CORE
default y
......
drivers/serial/amba-pl010.c
浏览文件 @ 138307b4
......@@ -105,7 +105,7 @@ struct uart_amba_port {
unsigned int old_status;
};
static void pl010_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void pl010_stop_tx(struct uart_port *port)
{
unsigned int cr;
......@@ -114,7 +114,7 @@ static void pl010_stop_tx(struct uart_port *port, unsigned int tty_stop)
UART_PUT_CR(port, cr);
}
static void pl010_start_tx(struct uart_port *port, unsigned int tty_start)
static void pl010_start_tx(struct uart_port *port)
{
unsigned int cr;
......@@ -219,7 +219,7 @@ static void pl010_tx_chars(struct uart_port *port)
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
pl010_stop_tx(port, 0);
pl010_stop_tx(port);
return;
}
......@@ -236,7 +236,7 @@ static void pl010_tx_chars(struct uart_port *port)
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
pl010_stop_tx(port, 0);
pl010_stop_tx(port);
}
static void pl010_modem_status(struct uart_port *port)
......
drivers/serial/amba-pl011.c
浏览文件 @ 138307b4
......@@ -74,7 +74,7 @@ struct uart_amba_port {
unsigned int old_status;
};
static void pl011_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void pl011_stop_tx(struct uart_port *port)
{
struct uart_amba_port *uap = (struct uart_amba_port *)port;
......@@ -82,7 +82,7 @@ static void pl011_stop_tx(struct uart_port *port, unsigned int tty_stop)
writew(uap->im, uap->port.membase + UART011_IMSC);
}
static void pl011_start_tx(struct uart_port *port, unsigned int tty_start)
static void pl011_start_tx(struct uart_port *port)
{
struct uart_amba_port *uap = (struct uart_amba_port *)port;
......@@ -184,7 +184,7 @@ static void pl011_tx_chars(struct uart_amba_port *uap)
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&uap->port)) {
pl011_stop_tx(&uap->port, 0);
pl011_stop_tx(&uap->port);
return;
}
......@@ -201,7 +201,7 @@ static void pl011_tx_chars(struct uart_amba_port *uap)
uart_write_wakeup(&uap->port);
if (uart_circ_empty(xmit))
pl011_stop_tx(&uap->port, 0);
pl011_stop_tx(&uap->port);
}
static void pl011_modem_status(struct uart_amba_port *uap)
......
drivers/serial/au1x00_uart.c
浏览文件 @ 138307b4
......@@ -200,7 +200,7 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
DEBUG_AUTOCONF("type=%s\n", uart_config[up->port.type].name);
}
static void serial8250_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void serial8250_stop_tx(struct uart_port *port)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
......@@ -210,7 +210,7 @@ static void serial8250_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
}
static void serial8250_start_tx(struct uart_port *port, unsigned int tty_start)
static void serial8250_start_tx(struct uart_port *port)
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
......@@ -337,7 +337,7 @@ static _INLINE_ void transmit_chars(struct uart_8250_port *up)
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
serial8250_stop_tx(&up->port, 0);
serial8250_stop_tx(&up->port);
return;
}
......@@ -356,7 +356,7 @@ static _INLINE_ void transmit_chars(struct uart_8250_port *up)
DEBUG_INTR("THRE...");
if (uart_circ_empty(xmit))
serial8250_stop_tx(&up->port, 0);
serial8250_stop_tx(&up->port);
}
static _INLINE_ void check_modem_status(struct uart_8250_port *up)
......
drivers/serial/clps711x.c
浏览文件 @ 138307b4
......@@ -69,8 +69,7 @@
#define tx_enabled(port) ((port)->unused[0])
static void
clps711xuart_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void clps711xuart_stop_tx(struct uart_port *port)
{
if (tx_enabled(port)) {
disable_irq(TX_IRQ(port));
......@@ -78,8 +77,7 @@ clps711xuart_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
}
static void
clps711xuart_start_tx(struct uart_port *port, unsigned int tty_start)
static void clps711xuart_start_tx(struct uart_port *port)
{
if (!tx_enabled(port)) {
enable_irq(TX_IRQ(port));
......@@ -165,7 +163,7 @@ static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id, struct pt_regs *re
return IRQ_HANDLED;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
clps711xuart_stop_tx(port, 0);
clps711xuart_stop_tx(port);
return IRQ_HANDLED;
}
......@@ -182,7 +180,7 @@ static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id, struct pt_regs *re
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
clps711xuart_stop_tx(port, 0);
clps711xuart_stop_tx(port);
return IRQ_HANDLED;
}
......
drivers/serial/cpm_uart/cpm_uart_core.c
浏览文件 @ 138307b4
......@@ -124,7 +124,7 @@ static unsigned int cpm_uart_get_mctrl(struct uart_port *port)
/*
* Stop transmitter
*/
static void cpm_uart_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void cpm_uart_stop_tx(struct uart_port *port)
{
struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
volatile smc_t *smcp = pinfo->smcp;
......@@ -141,7 +141,7 @@ static void cpm_uart_stop_tx(struct uart_port *port, unsigned int tty_stop)
/*
* Start transmitter
*/
static void cpm_uart_start_tx(struct uart_port *port, unsigned int tty_start)
static void cpm_uart_start_tx(struct uart_port *port)
{
struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
volatile smc_t *smcp = pinfo->smcp;
......@@ -623,7 +623,7 @@ static int cpm_uart_tx_pump(struct uart_port *port)
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
cpm_uart_stop_tx(port, 0);
cpm_uart_stop_tx(port);
return 0;
}
......@@ -656,7 +656,7 @@ static int cpm_uart_tx_pump(struct uart_port *port)
uart_write_wakeup(port);
if (uart_circ_empty(xmit)) {
cpm_uart_stop_tx(port, 0);
cpm_uart_stop_tx(port);
return 0;
}
......
drivers/serial/dz.c
浏览文件 @ 138307b4
......@@ -112,7 +112,7 @@ static inline void dz_out(struct dz_port *dport, unsigned offset,
* ------------------------------------------------------------
*/
static void dz_stop_tx(struct uart_port *uport, unsigned int tty_stop)
static void dz_stop_tx(struct uart_port *uport)
{
struct dz_port *dport = (struct dz_port *)uport;
unsigned short tmp, mask = 1 << dport->port.line;
......@@ -125,7 +125,7 @@ static void dz_stop_tx(struct uart_port *uport, unsigned int tty_stop)
spin_unlock_irqrestore(&dport->port.lock, flags);
}
static void dz_start_tx(struct uart_port *uport, unsigned int tty_start)
static void dz_start_tx(struct uart_port *uport)
{
struct dz_port *dport = (struct dz_port *)uport;
unsigned short tmp, mask = 1 << dport->port.line;
......@@ -290,7 +290,7 @@ static inline void dz_transmit_chars(struct dz_port *dport)
}
/* if nothing to do or stopped or hardware stopped */
if (uart_circ_empty(xmit) || uart_tx_stopped(&dport->port)) {
dz_stop_tx(&dport->port, 0);
dz_stop_tx(&dport->port);
return;
}
......@@ -308,7 +308,7 @@ static inline void dz_transmit_chars(struct dz_port *dport)
/* Are we done */
if (uart_circ_empty(xmit))
dz_stop_tx(&dport->port, 0);
dz_stop_tx(&dport->port);
}
/*
......@@ -440,7 +440,7 @@ static int dz_startup(struct uart_port *uport)
*/
static void dz_shutdown(struct uart_port *uport)
{
dz_stop_tx(uport, 0);
dz_stop_tx(uport);
}
/*
......
drivers/serial/icom.c
浏览文件 @ 138307b4
......@@ -989,18 +989,16 @@ static unsigned int icom_get_mctrl(struct uart_port *port)
return result;
}
static void icom_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void icom_stop_tx(struct uart_port *port)
{
unsigned char cmdReg;
if (tty_stop) {
trace(ICOM_PORT, "STOP", 0);
cmdReg = readb(&ICOM_PORT->dram->CmdReg);
writeb(cmdReg | CMD_HOLD_XMIT, &ICOM_PORT->dram->CmdReg);
}
trace(ICOM_PORT, "STOP", 0);
cmdReg = readb(&ICOM_PORT->dram->CmdReg);
writeb(cmdReg | CMD_HOLD_XMIT, &ICOM_PORT->dram->CmdReg);
}
static void icom_start_tx(struct uart_port *port, unsigned int tty_start)
static void icom_start_tx(struct uart_port *port)
{
unsigned char cmdReg;
......
drivers/serial/imx.c
浏览文件 @ 138307b4
......@@ -124,7 +124,7 @@ static void imx_timeout(unsigned long data)
/*
* interrupts disabled on entry
*/
static void imx_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void imx_stop_tx(struct uart_port *port)
{
struct imx_port *sport = (struct imx_port *)port;
UCR1((u32)sport->port.membase) &= ~UCR1_TXMPTYEN;
......@@ -165,13 +165,13 @@ static inline void imx_transmit_buffer(struct imx_port *sport)
} while (!(UTS((u32)sport->port.membase) & UTS_TXFULL));
if (uart_circ_empty(xmit))
imx_stop_tx(&sport->port, 0);
imx_stop_tx(&sport->port);
}
/*
* interrupts disabled on entry
*/
static void imx_start_tx(struct uart_port *port, unsigned int tty_start)
static void imx_start_tx(struct uart_port *port)
{
struct imx_port *sport = (struct imx_port *)port;
......@@ -196,7 +196,7 @@ static irqreturn_t imx_txint(int irq, void *dev_id, struct pt_regs *regs)
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) {
imx_stop_tx(&sport->port, 0);
imx_stop_tx(&sport->port);
goto out;
}
......@@ -291,13 +291,31 @@ static unsigned int imx_tx_empty(struct uart_port *port)
return USR2((u32)sport->port.membase) & USR2_TXDC ? TIOCSER_TEMT : 0;
}
/*
* We have a modem side uart, so the meanings of RTS and CTS are inverted.
*/
static unsigned int imx_get_mctrl(struct uart_port *port)
{
return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
struct imx_port *sport = (struct imx_port *)port;
unsigned int tmp = TIOCM_DSR | TIOCM_CAR;
if (USR1((u32)sport->port.membase) & USR1_RTSS)
tmp |= TIOCM_CTS;
if (UCR2((u32)sport->port.membase) & UCR2_CTS)
tmp |= TIOCM_RTS;
return tmp;
}
static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
struct imx_port *sport = (struct imx_port *)port;
if (mctrl & TIOCM_RTS)
UCR2((u32)sport->port.membase) |= UCR2_CTS;
else
UCR2((u32)sport->port.membase) &= ~UCR2_CTS;
}
/*
......
drivers/serial/ioc4_serial.c
浏览文件 @ 138307b4
......@@ -2373,10 +2373,9 @@ static unsigned int ic4_tx_empty(struct uart_port *the_port)
/**
* ic4_stop_tx - stop the transmitter
* @port: Port to operate on
* @tty_stop: Set to 1 if called via uart_stop
*
*/
static void ic4_stop_tx(struct uart_port *the_port, unsigned int tty_stop)
static void ic4_stop_tx(struct uart_port *the_port)
{
}
......@@ -2471,10 +2470,9 @@ static unsigned int ic4_get_mctrl(struct uart_port *the_port)
/**
* ic4_start_tx - Start transmitter, flush any output
* @port: Port to operate on
* @tty_stop: Set to 1 if called via uart_start
*
*/
static void ic4_start_tx(struct uart_port *the_port, unsigned int tty_stop)
static void ic4_start_tx(struct uart_port *the_port)
{
struct ioc4_port *port = get_ioc4_port(the_port);
unsigned long flags;
......
drivers/serial/ip22zilog.c
浏览文件 @ 138307b4
......@@ -592,7 +592,7 @@ static void ip22zilog_set_mctrl(struct uart_port *port, unsigned int mctrl)
}
/* The port lock is held and interrupts are disabled. */
static void ip22zilog_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void ip22zilog_stop_tx(struct uart_port *port)
{
struct uart_ip22zilog_port *up = (struct uart_ip22zilog_port *) port;
......@@ -600,7 +600,7 @@ static void ip22zilog_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
/* The port lock is held and interrupts are disabled. */
static void ip22zilog_start_tx(struct uart_port *port, unsigned int tty_start)
static void ip22zilog_start_tx(struct uart_port *port)
{
struct uart_ip22zilog_port *up = (struct uart_ip22zilog_port *) port;
struct zilog_channel *channel = ZILOG_CHANNEL_FROM_PORT(port);
......
drivers/serial/jsm/jsm_tty.c
浏览文件 @ 138307b4
......@@ -113,7 +113,7 @@ static void jsm_tty_set_mctrl(struct uart_port *port, unsigned int mctrl)
udelay(10);
}
static void jsm_tty_start_tx(struct uart_port *port, unsigned int tty_start)
static void jsm_tty_start_tx(struct uart_port *port)
{
struct jsm_channel *channel = (struct jsm_channel *)port;
......@@ -125,7 +125,7 @@ static void jsm_tty_start_tx(struct uart_port *port, unsigned int tty_start)
jsm_printk(IOCTL, INFO, &channel->ch_bd->pci_dev, "finish\n");
}
static void jsm_tty_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void jsm_tty_stop_tx(struct uart_port *port)
{
struct jsm_channel *channel = (struct jsm_channel *)port;
......
drivers/serial/m32r_sio.c
浏览文件 @ 138307b4
......@@ -275,7 +275,7 @@ serial_out(struct uart_sio_port *up, int offset, int value)
__sio_out(value, offset);
}
static void m32r_sio_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void m32r_sio_stop_tx(struct uart_port *port)
{
struct uart_sio_port *up = (struct uart_sio_port *)port;
......@@ -285,7 +285,7 @@ static void m32r_sio_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
}
static void m32r_sio_start_tx(struct uart_port *port, unsigned int tty_start)
static void m32r_sio_start_tx(struct uart_port *port)
{
#ifdef CONFIG_SERIAL_M32R_PLDSIO
struct uart_sio_port *up = (struct uart_sio_port *)port;
......@@ -425,7 +425,7 @@ static _INLINE_ void transmit_chars(struct uart_sio_port *up)
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
m32r_sio_stop_tx(&up->port, 0);
m32r_sio_stop_tx(&up->port);
return;
}
......@@ -446,7 +446,7 @@ static _INLINE_ void transmit_chars(struct uart_sio_port *up)
DEBUG_INTR("THRE...");
if (uart_circ_empty(xmit))
m32r_sio_stop_tx(&up->port, 0);
m32r_sio_stop_tx(&up->port);
}
/*
......
drivers/serial/mpc52xx_uart.c
浏览文件 @ 138307b4
......@@ -119,7 +119,7 @@ mpc52xx_uart_get_mctrl(struct uart_port *port)
}
static void
mpc52xx_uart_stop_tx(struct uart_port *port, unsigned int tty_stop)
mpc52xx_uart_stop_tx(struct uart_port *port)
{
/* port->lock taken by caller */
port->read_status_mask &= ~MPC52xx_PSC_IMR_TXRDY;
......@@ -127,7 +127,7 @@ mpc52xx_uart_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
static void
mpc52xx_uart_start_tx(struct uart_port *port, unsigned int tty_start)
mpc52xx_uart_start_tx(struct uart_port *port)
{
/* port->lock taken by caller */
port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY;
......@@ -485,7 +485,7 @@ mpc52xx_uart_int_tx_chars(struct uart_port *port)
/* Nothing to do ? */
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
mpc52xx_uart_stop_tx(port,0);
mpc52xx_uart_stop_tx(port);
return 0;
}
......@@ -504,7 +504,7 @@ mpc52xx_uart_int_tx_chars(struct uart_port *port)
/* Maybe we're done after all */
if (uart_circ_empty(xmit)) {
mpc52xx_uart_stop_tx(port,0);
mpc52xx_uart_stop_tx(port);
return 0;
}
......
drivers/serial/mpsc.c
浏览文件 @ 138307b4
......@@ -1072,18 +1072,18 @@ mpsc_get_mctrl(struct uart_port *port)
}
static void
mpsc_stop_tx(struct uart_port *port, uint tty_start)
mpsc_stop_tx(struct uart_port *port)
{
struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
pr_debug("mpsc_stop_tx[%d]: tty_start: %d\n", port->line, tty_start);
pr_debug("mpsc_stop_tx[%d]\n", port->line);
mpsc_freeze(pi);
return;
}
static void
mpsc_start_tx(struct uart_port *port, uint tty_start)
mpsc_start_tx(struct uart_port *port)
{
struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
......@@ -1091,7 +1091,7 @@ mpsc_start_tx(struct uart_port *port, uint tty_start)
mpsc_copy_tx_data(pi);
mpsc_sdma_start_tx(pi);
pr_debug("mpsc_start_tx[%d]: tty_start: %d\n", port->line, tty_start);
pr_debug("mpsc_start_tx[%d]\n", port->line);
return;
}
......
drivers/serial/mux.c
浏览文件 @ 138307b4
......@@ -111,22 +111,20 @@ static unsigned int mux_get_mctrl(struct uart_port *port)
/**
* mux_stop_tx - Stop transmitting characters.
* @port: Ptr to the uart_port.
* @tty_stop: tty layer issue this command?
*
* The Serial MUX does not support this function.
*/
static void mux_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void mux_stop_tx(struct uart_port *port)
{
}
/**
* mux_start_tx - Start transmitting characters.
* @port: Ptr to the uart_port.
* @tty_start: tty layer issue this command?
*
* The Serial Mux does not support this function.
*/
static void mux_start_tx(struct uart_port *port, unsigned int tty_start)
static void mux_start_tx(struct uart_port *port)
{
}
......@@ -181,7 +179,7 @@ static void mux_write(struct uart_port *port)
}
if(uart_circ_empty(xmit) || uart_tx_stopped(port)) {
mux_stop_tx(port, 0);
mux_stop_tx(port);
return;
}
......@@ -202,7 +200,7 @@ static void mux_write(struct uart_port *port)
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
mux_stop_tx(port, 0);
mux_stop_tx(port);
}
/**
......
drivers/serial/pmac_zilog.c
浏览文件 @ 138307b4
......@@ -630,11 +630,10 @@ static unsigned int pmz_get_mctrl(struct uart_port *port)
/*
* Stop TX side. Dealt like sunzilog at next Tx interrupt,
* though for DMA, we will have to do a bit more. What is
* the meaning of the tty_stop bit ? XXX
* though for DMA, we will have to do a bit more.
* The port lock is held and interrupts are disabled.
*/
static void pmz_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void pmz_stop_tx(struct uart_port *port)
{
to_pmz(port)->flags |= PMACZILOG_FLAG_TX_STOPPED;
}
......@@ -643,7 +642,7 @@ static void pmz_stop_tx(struct uart_port *port, unsigned int tty_stop)
* Kick the Tx side.
* The port lock is held and interrupts are disabled.
*/
static void pmz_start_tx(struct uart_port *port, unsigned int tty_start)
static void pmz_start_tx(struct uart_port *port)
{
struct uart_pmac_port *uap = to_pmz(port);
unsigned char status;
......
drivers/serial/pxa.c
浏览文件 @ 138307b4
......@@ -80,7 +80,7 @@ static void serial_pxa_enable_ms(struct uart_port *port)
serial_out(up, UART_IER, up->ier);
}
static void serial_pxa_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void serial_pxa_stop_tx(struct uart_port *port)
{
struct uart_pxa_port *up = (struct uart_pxa_port *)port;
......@@ -185,7 +185,7 @@ static void transmit_chars(struct uart_pxa_port *up)
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
serial_pxa_stop_tx(&up->port, 0);
serial_pxa_stop_tx(&up->port);
return;
}
......@@ -203,10 +203,10 @@ static void transmit_chars(struct uart_pxa_port *up)
if (uart_circ_empty(xmit))
serial_pxa_stop_tx(&up->port, 0);
serial_pxa_stop_tx(&up->port);
}
static void serial_pxa_start_tx(struct uart_port *port, unsigned int tty_start)
static void serial_pxa_start_tx(struct uart_port *port)
{
struct uart_pxa_port *up = (struct uart_pxa_port *)port;
......
drivers/serial/s3c2410.c
浏览文件 @ 138307b4
......@@ -246,8 +246,7 @@ static void s3c24xx_serial_rx_disable(struct uart_port *port)
spin_unlock_irqrestore(&port->lock, flags);
}
static void
s3c24xx_serial_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void s3c24xx_serial_stop_tx(struct uart_port *port)
{
if (tx_enabled(port)) {
disable_irq(TX_IRQ(port));
......@@ -257,8 +256,7 @@ s3c24xx_serial_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
}
static void
s3c24xx_serial_start_tx(struct uart_port *port, unsigned int tty_start)
static void s3c24xx_serial_start_tx(struct uart_port *port)
{
if (!tx_enabled(port)) {
if (port->flags & UPF_CONS_FLOW)
......@@ -424,7 +422,7 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id, struct pt_regs *re
*/
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
s3c24xx_serial_stop_tx(port, 0);
s3c24xx_serial_stop_tx(port);
goto out;
}
......@@ -443,7 +441,7 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id, struct pt_regs *re
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
s3c24xx_serial_stop_tx(port, 0);
s3c24xx_serial_stop_tx(port);
out:
return IRQ_HANDLED;
......
drivers/serial/sa1100.c
浏览文件 @ 138307b4
......@@ -145,7 +145,7 @@ static void sa1100_timeout(unsigned long data)
/*
* interrupts disabled on entry
*/
static void sa1100_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void sa1100_stop_tx(struct uart_port *port)
{
struct sa1100_port *sport = (struct sa1100_port *)port;
u32 utcr3;
......@@ -158,7 +158,7 @@ static void sa1100_stop_tx(struct uart_port *port, unsigned int tty_stop)
/*
* interrupts may not be disabled on entry
*/
static void sa1100_start_tx(struct uart_port *port, unsigned int tty_start)
static void sa1100_start_tx(struct uart_port *port)
{
struct sa1100_port *sport = (struct sa1100_port *)port;
unsigned long flags;
......@@ -264,7 +264,7 @@ static void sa1100_tx_chars(struct sa1100_port *sport)
sa1100_mctrl_check(sport);
if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) {
sa1100_stop_tx(&sport->port, 0);
sa1100_stop_tx(&sport->port);
return;
}
......@@ -284,7 +284,7 @@ static void sa1100_tx_chars(struct sa1100_port *sport)
uart_write_wakeup(&sport->port);
if (uart_circ_empty(xmit))
sa1100_stop_tx(&sport->port, 0);
sa1100_stop_tx(&sport->port);
}
static irqreturn_t sa1100_int(int irq, void *dev_id, struct pt_regs *regs)
......
drivers/serial/serial_core.c
浏览文件 @ 138307b4
......@@ -80,7 +80,7 @@ static void uart_stop(struct tty_struct *tty)
unsigned long flags;
spin_lock_irqsave(&port->lock, flags);
port->ops->stop_tx(port, 1);
port->ops->stop_tx(port);
spin_unlock_irqrestore(&port->lock, flags);
}
......@@ -91,7 +91,7 @@ static void __uart_start(struct tty_struct *tty)
if (!uart_circ_empty(&state->info->xmit) && state->info->xmit.buf &&
!tty->stopped && !tty->hw_stopped)
port->ops->start_tx(port, 1);
port->ops->start_tx(port);
}
static void uart_start(struct tty_struct *tty)
......@@ -542,7 +542,7 @@ static void uart_send_xchar(struct tty_struct *tty, char ch)
port->x_char = ch;
if (ch) {
spin_lock_irqsave(&port->lock, flags);
port->ops->start_tx(port, 0);
port->ops->start_tx(port);
spin_unlock_irqrestore(&port->lock, flags);
}
}
......@@ -1146,7 +1146,7 @@ static void uart_set_termios(struct tty_struct *tty, struct termios *old_termios
spin_lock_irqsave(&state->port->lock, flags);
if (!(state->port->ops->get_mctrl(state->port) & TIOCM_CTS)) {
tty->hw_stopped = 1;
state->port->ops->stop_tx(state->port, 0);
state->port->ops->stop_tx(state->port);
}
spin_unlock_irqrestore(&state->port->lock, flags);
}
......@@ -1869,7 +1869,7 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *port)
struct uart_ops *ops = port->ops;
spin_lock_irq(&port->lock);
ops->stop_tx(port, 0);
ops->stop_tx(port);
ops->set_mctrl(port, 0);
ops->stop_rx(port);
spin_unlock_irq(&port->lock);
......@@ -1935,7 +1935,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
uart_change_speed(state, NULL);
spin_lock_irq(&port->lock);
ops->set_mctrl(port, port->mctrl);
ops->start_tx(port, 0);
ops->start_tx(port);
spin_unlock_irq(&port->lock);
}
......@@ -2289,143 +2289,11 @@ int uart_match_port(struct uart_port *port1, struct uart_port *port2)
}
EXPORT_SYMBOL(uart_match_port);
/*
* Try to find an unused uart_state slot for a port.
*/
static struct uart_state *
uart_find_match_or_unused(struct uart_driver *drv, struct uart_port *port)
{
int i;
/*
* First, find a port entry which matches. Note: if we do
* find a matching entry, and it has a non-zero use count,
* then we can't register the port.
*/
for (i = 0; i < drv->nr; i++)
if (uart_match_port(drv->state[i].port, port))
return &drv->state[i];
/*
* We didn't find a matching entry, so look for the first
* free entry. We look for one which hasn't been previously
* used (indicated by zero iobase).
*/
for (i = 0; i < drv->nr; i++)
if (drv->state[i].port->type == PORT_UNKNOWN &&
drv->state[i].port->iobase == 0 &&
drv->state[i].count == 0)
return &drv->state[i];
/*
* That also failed. Last resort is to find any currently
* entry which doesn't have a real port associated with it.
*/
for (i = 0; i < drv->nr; i++)
if (drv->state[i].port->type == PORT_UNKNOWN &&
drv->state[i].count == 0)
return &drv->state[i];
return NULL;
}
/**
* uart_register_port: register uart settings with a port
* @drv: pointer to the uart low level driver structure for this port
* @port: uart port structure describing the port
*
* Register UART settings with the specified low level driver. Detect
* the type of the port if UPF_BOOT_AUTOCONF is set, and detect the
* IRQ if UPF_AUTO_IRQ is set.
*
* We try to pick the same port for the same IO base address, so that
* when a modem is plugged in, unplugged and plugged back in, it gets
* allocated the same port.
*
* Returns negative error, or positive line number.
*/
int uart_register_port(struct uart_driver *drv, struct uart_port *port)
{
struct uart_state *state;
int ret;
down(&port_sem);
state = uart_find_match_or_unused(drv, port);
if (state) {
/*
* Ok, we've found a line that we can use.
*
* If we find a port that matches this one, and it appears
* to be in-use (even if it doesn't have a type) we shouldn't
* alter it underneath itself - the port may be open and
* trying to do useful work.
*/
if (uart_users(state) != 0) {
ret = -EBUSY;
goto out;
}
/*
* If the port is already initialised, don't touch it.
*/
if (state->port->type == PORT_UNKNOWN) {
state->port->iobase = port->iobase;
state->port->membase = port->membase;
state->port->irq = port->irq;
state->port->uartclk = port->uartclk;
state->port->fifosize = port->fifosize;
state->port->regshift = port->regshift;
state->port->iotype = port->iotype;
state->port->flags = port->flags;
state->port->line = state - drv->state;
state->port->mapbase = port->mapbase;
uart_configure_port(drv, state, state->port);
}
ret = state->port->line;
} else
ret = -ENOSPC;
out:
up(&port_sem);
return ret;
}
/**
* uart_unregister_port - de-allocate a port
* @drv: pointer to the uart low level driver structure for this port
* @line: line index previously returned from uart_register_port()
*
* Hang up the specified line associated with the low level driver,
* and mark the port as unused.
*/
void uart_unregister_port(struct uart_driver *drv, int line)
{
struct uart_state *state;
if (line < 0 || line >= drv->nr) {
printk(KERN_ERR "Attempt to unregister ");
printk("%s%d", drv->dev_name, line);
printk("\n");
return;
}
state = drv->state + line;
down(&port_sem);
uart_unconfigure_port(drv, state);
up(&port_sem);
}
EXPORT_SYMBOL(uart_write_wakeup);
EXPORT_SYMBOL(uart_register_driver);
EXPORT_SYMBOL(uart_unregister_driver);
EXPORT_SYMBOL(uart_suspend_port);
EXPORT_SYMBOL(uart_resume_port);
EXPORT_SYMBOL(uart_register_port);
EXPORT_SYMBOL(uart_unregister_port);
EXPORT_SYMBOL(uart_add_one_port);
EXPORT_SYMBOL(uart_remove_one_port);
......
drivers/serial/serial_lh7a40x.c
浏览文件 @ 138307b4
......@@ -112,13 +112,12 @@ struct uart_port_lh7a40x {
unsigned int statusPrev; /* Most recently read modem status */
};
static void lh7a40xuart_stop_tx (struct uart_port* port, unsigned int tty_stop)
static void lh7a40xuart_stop_tx (struct uart_port* port)
{
BIT_CLR (port, UART_R_INTEN, TxInt);
}
static void lh7a40xuart_start_tx (struct uart_port* port,
unsigned int tty_start)
static void lh7a40xuart_start_tx (struct uart_port* port)
{
BIT_SET (port, UART_R_INTEN, TxInt);
......
drivers/serial/serial_txx9.c
浏览文件 @ 138307b4
......@@ -253,7 +253,7 @@ sio_quot_set(struct uart_txx9_port *up, int quot)
sio_out(up, TXX9_SIBGR, 0xff | TXX9_SIBGR_BCLK_T6);
}
static void serial_txx9_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void serial_txx9_stop_tx(struct uart_port *port)
{
struct uart_txx9_port *up = (struct uart_txx9_port *)port;
unsigned long flags;
......@@ -263,7 +263,7 @@ static void serial_txx9_stop_tx(struct uart_port *port, unsigned int tty_stop)
spin_unlock_irqrestore(&up->port.lock, flags);
}
static void serial_txx9_start_tx(struct uart_port *port, unsigned int tty_start)
static void serial_txx9_start_tx(struct uart_port *port)
{
struct uart_txx9_port *up = (struct uart_txx9_port *)port;
unsigned long flags;
......@@ -372,7 +372,7 @@ static inline void transmit_chars(struct uart_txx9_port *up)
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
serial_txx9_stop_tx(&up->port, 0);
serial_txx9_stop_tx(&up->port);
return;
}
......@@ -389,7 +389,7 @@ static inline void transmit_chars(struct uart_txx9_port *up)
uart_write_wakeup(&up->port);
if (uart_circ_empty(xmit))
serial_txx9_stop_tx(&up->port, 0);
serial_txx9_stop_tx(&up->port);
}
static irqreturn_t serial_txx9_interrupt(int irq, void *dev_id, struct pt_regs *regs)
......
drivers/serial/sh-sci.c
浏览文件 @ 138307b4
......@@ -79,8 +79,8 @@ static struct sci_port *serial_console_port = 0;
#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */
/* Function prototypes */
static void sci_stop_tx(struct uart_port *port, unsigned int tty_stop);
static void sci_start_tx(struct uart_port *port, unsigned int tty_start);
static void sci_stop_tx(struct uart_port *port);
static void sci_start_tx(struct uart_port *port);
static void sci_start_rx(struct uart_port *port, unsigned int tty_start);
static void sci_stop_rx(struct uart_port *port);
static int sci_request_irq(struct sci_port *port);
......@@ -455,7 +455,7 @@ static void sci_transmit_chars(struct uart_port *port)
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(port);
if (uart_circ_empty(xmit)) {
sci_stop_tx(port, 0);
sci_stop_tx(port);
} else {
local_irq_save(flags);
ctrl = sci_in(port, SCSCR);
......@@ -900,7 +900,7 @@ static unsigned int sci_get_mctrl(struct uart_port *port)
return TIOCM_DTR | TIOCM_RTS | TIOCM_DSR;
}
static void sci_start_tx(struct uart_port *port, unsigned int tty_start)
static void sci_start_tx(struct uart_port *port)
{
struct sci_port *s = &sci_ports[port->line];
......@@ -909,7 +909,7 @@ static void sci_start_tx(struct uart_port *port, unsigned int tty_start)
enable_irq(s->irqs[SCIx_TXI_IRQ]);
}
static void sci_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void sci_stop_tx(struct uart_port *port)
{
unsigned long flags;
unsigned short ctrl;
......@@ -978,7 +978,7 @@ static void sci_shutdown(struct uart_port *port)
struct sci_port *s = &sci_ports[port->line];
sci_stop_rx(port);
sci_stop_tx(port, 1);
sci_stop_tx(port);
sci_free_irq(s);
#if defined(__H8300S__)
......
drivers/serial/sn_console.c
浏览文件 @ 138307b4
......@@ -259,10 +259,9 @@ static unsigned int snp_tx_empty(struct uart_port *port)
/**
* snp_stop_tx - stop the transmitter - no-op for us
* @port: Port to operat eon - we ignore - no-op function
* @tty_stop: Set to 1 if called via uart_stop
*
*/
static void snp_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void snp_stop_tx(struct uart_port *port)
{
}
......@@ -325,10 +324,9 @@ static void snp_stop_rx(struct uart_port *port)
/**
* snp_start_tx - Start transmitter
* @port: Port to operate on
* @tty_stop: Set to 1 if called via uart_start
*
*/
static void snp_start_tx(struct uart_port *port, unsigned int tty_stop)
static void snp_start_tx(struct uart_port *port)
{
if (sal_console_port.sc_ops->sal_wakeup_transmit)
sal_console_port.sc_ops->sal_wakeup_transmit(&sal_console_port,
......@@ -615,7 +613,7 @@ static void sn_transmit_chars(struct sn_cons_port *port, int raw)
uart_write_wakeup(&port->sc_port);
if (uart_circ_empty(xmit))
snp_stop_tx(&port->sc_port, 0); /* no-op for us */
snp_stop_tx(&port->sc_port); /* no-op for us */
}
/**
......
drivers/serial/sunsab.c
浏览文件 @ 138307b4
......@@ -245,7 +245,7 @@ receive_chars(struct uart_sunsab_port *up,
return tty;
}
static void sunsab_stop_tx(struct uart_port *, unsigned int);
static void sunsab_stop_tx(struct uart_port *);
static void sunsab_tx_idle(struct uart_sunsab_port *);
static void transmit_chars(struct uart_sunsab_port *up,
......@@ -301,7 +301,7 @@ static void transmit_chars(struct uart_sunsab_port *up,
uart_write_wakeup(&up->port);
if (uart_circ_empty(xmit))
sunsab_stop_tx(&up->port, 0);
sunsab_stop_tx(&up->port);
}
static void check_status(struct uart_sunsab_port *up,
......@@ -448,7 +448,7 @@ static unsigned int sunsab_get_mctrl(struct uart_port *port)
}
/* port->lock held by caller. */
static void sunsab_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void sunsab_stop_tx(struct uart_port *port)
{
struct uart_sunsab_port *up = (struct uart_sunsab_port *) port;
......@@ -476,7 +476,7 @@ static void sunsab_tx_idle(struct uart_sunsab_port *up)
}
/* port->lock held by caller. */
static void sunsab_start_tx(struct uart_port *port, unsigned int tty_start)
static void sunsab_start_tx(struct uart_port *port)
{
struct uart_sunsab_port *up = (struct uart_sunsab_port *) port;
struct circ_buf *xmit = &up->port.info->xmit;
......
drivers/serial/sunsu.c
浏览文件 @ 138307b4
......@@ -255,21 +255,27 @@ static void disable_rsa(struct uart_sunsu_port *up)
}
#endif /* CONFIG_SERIAL_8250_RSA */
static void sunsu_stop_tx(struct uart_port *port, unsigned int tty_stop)
static inline void __stop_tx(struct uart_sunsu_port *p)
{
if (p->ier & UART_IER_THRI) {
p->ier &= ~UART_IER_THRI;
serial_out(p, UART_IER, p->ier);
}
}
static void sunsu_stop_tx(struct uart_port *port)
{
struct uart_sunsu_port *up = (struct uart_sunsu_port *) port;
if (up->ier & UART_IER_THRI) {
up->ier &= ~UART_IER_THRI;
serial_out(up, UART_IER, up->ier);
}
if (up->port.type == PORT_16C950 && tty_stop) {
__stop_tx(up);
if (up->port.type == PORT_16C950 && tty_stop /*FIXME*/) {
up->acr |= UART_ACR_TXDIS;
serial_icr_write(up, UART_ACR, up->acr);
}
}
static void sunsu_start_tx(struct uart_port *port, unsigned int tty_start)
static void sunsu_start_tx(struct uart_port *port)
{
struct uart_sunsu_port *up = (struct uart_sunsu_port *) port;
......@@ -280,7 +286,7 @@ static void sunsu_start_tx(struct uart_port *port, unsigned int tty_start)
/*
* We only do this from uart_start
*/
if (tty_start && up->port.type == PORT_16C950) {
if (tty_start && up->port.type == PORT_16C950 /*FIXME*/) {
up->acr &= ~UART_ACR_TXDIS;
serial_icr_write(up, UART_ACR, up->acr);
}
......@@ -413,8 +419,12 @@ static _INLINE_ void transmit_chars(struct uart_sunsu_port *up)
up->port.x_char = 0;
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
sunsu_stop_tx(&up->port, 0);
if (uart_tx_stopped(&up->port)) {
sunsu_stop_tx(&up->port);
return;
}
if (uart_circ_empty(xmit)) {
__stop_tx(up);
return;
}
......@@ -431,7 +441,7 @@ static _INLINE_ void transmit_chars(struct uart_sunsu_port *up)
uart_write_wakeup(&up->port);
if (uart_circ_empty(xmit))
sunsu_stop_tx(&up->port, 0);
__stop_tx(up);
}
static _INLINE_ void check_modem_status(struct uart_sunsu_port *up)
......
drivers/serial/sunzilog.c
浏览文件 @ 138307b4
......@@ -684,7 +684,7 @@ static void sunzilog_set_mctrl(struct uart_port *port, unsigned int mctrl)
}
/* The port lock is held and interrupts are disabled. */
static void sunzilog_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void sunzilog_stop_tx(struct uart_port *port)
{
struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
......@@ -692,7 +692,7 @@ static void sunzilog_stop_tx(struct uart_port *port, unsigned int tty_stop)
}
/* The port lock is held and interrupts are disabled. */
static void sunzilog_start_tx(struct uart_port *port, unsigned int tty_start)
static void sunzilog_start_tx(struct uart_port *port)
{
struct uart_sunzilog_port *up = (struct uart_sunzilog_port *) port;
struct zilog_channel __iomem *channel = ZILOG_CHANNEL_FROM_PORT(port);
......
drivers/serial/uart00.c
浏览文件 @ 138307b4
......@@ -87,7 +87,7 @@
#define UART_TX_READY(s) (((s) & UART_TSR_TX_LEVEL_MSK) < 15)
//#define UART_TX_EMPTY(p) ((UART_GET_FR(p) & UART00_UARTFR_TMSK) == 0)
static void uart00_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void uart00_stop_tx(struct uart_port *port)
{
UART_PUT_IEC(port, UART_IEC_TIE_MSK);
}
......@@ -199,7 +199,7 @@ static void uart00_tx_chars(struct uart_port *port)
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
uart00_stop_tx(port, 0);
uart00_stop_tx(port);
return;
}
......@@ -218,10 +218,10 @@ static void uart00_tx_chars(struct uart_port *port)
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
uart00_stop_tx(port, 0);
uart00_stop_tx(port);
}
static void uart00_start_tx(struct uart_port *port, unsigned int tty_start)
static void uart00_start_tx(struct uart_port *port)
{
UART_PUT_IES(port, UART_IES_TIE_MSK);
uart00_tx_chars(port);
......
drivers/serial/v850e_uart.c
浏览文件 @ 138307b4
......@@ -240,7 +240,7 @@ console_initcall(v850e_uart_console_init);
/* TX/RX interrupt handlers. */
static void v850e_uart_stop_tx (struct uart_port *port, unsigned tty_stop);
static void v850e_uart_stop_tx (struct uart_port *port);
void v850e_uart_tx (struct uart_port *port)
{
......@@ -339,14 +339,14 @@ static unsigned v850e_uart_get_mctrl (struct uart_port *port)
return mctrl;
}
static void v850e_uart_start_tx (struct uart_port *port, unsigned tty_start)
static void v850e_uart_start_tx (struct uart_port *port)
{
v850e_intc_disable_irq (V850E_UART_TX_IRQ (port->line));
v850e_uart_tx (port);
v850e_intc_enable_irq (V850E_UART_TX_IRQ (port->line));
}
static void v850e_uart_stop_tx (struct uart_port *port, unsigned tty_stop)
static void v850e_uart_stop_tx (struct uart_port *port)
{
v850e_intc_disable_irq (V850E_UART_TX_IRQ (port->line));
}
......
drivers/serial/vr41xx_siu.c
浏览文件 @ 138307b4
......@@ -284,7 +284,7 @@ static unsigned int siu_get_mctrl(struct uart_port *port)
return mctrl;
}
static void siu_stop_tx(struct uart_port *port, unsigned int tty_stop)
static void siu_stop_tx(struct uart_port *port)
{
unsigned long flags;
uint8_t ier;
......@@ -298,7 +298,7 @@ static void siu_stop_tx(struct uart_port *port, unsigned int tty_stop)
spin_unlock_irqrestore(&port->lock, flags);
}
static void siu_start_tx(struct uart_port *port, unsigned int tty_start)
static void siu_start_tx(struct uart_port *port)
{
unsigned long flags;
uint8_t ier;
......@@ -458,7 +458,7 @@ static inline void transmit_chars(struct uart_port *port)
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
siu_stop_tx(port, 0);
siu_stop_tx(port);
return;
}
......@@ -474,7 +474,7 @@ static inline void transmit_chars(struct uart_port *port)
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
siu_stop_tx(port, 0);
siu_stop_tx(port);
}
static irqreturn_t siu_interrupt(int irq, void *dev_id, struct pt_regs *regs)
......
include/linux/serial.h
浏览文件 @ 138307b4
......@@ -176,10 +176,6 @@ struct serial_icounter_struct {
#ifdef __KERNEL__
#include <linux/compiler.h>
/* Export to allow PCMCIA to use this - Dave Hinds */
extern int __deprecated register_serial(struct serial_struct *req);
extern void __deprecated unregister_serial(int line);
/* Allow architectures to override entries in serial8250_ports[] at run time: */
struct uart_port; /* forward declaration */
extern int early_serial_setup(struct uart_port *port);
......
include/linux/serial_8250.h
浏览文件 @ 138307b4
......@@ -14,6 +14,9 @@
#include <linux/serial_core.h>
#include <linux/device.h>
/*
* This is the platform device platform_data structure
*/
struct plat_serial8250_port {
unsigned long iobase; /* io base address */
void __iomem *membase; /* ioremap cookie or NULL */
......@@ -26,4 +29,17 @@ struct plat_serial8250_port {
unsigned int flags; /* UPF_* flags */
};
/*
* This should be used by drivers which want to register
* their own 8250 ports without registering their own
* platform device. Using these will make your driver
* dependent on the 8250 driver.
*/
struct uart_port;
int serial8250_register_port(struct uart_port *);
void serial8250_unregister_port(int line);
void serial8250_suspend_port(int line);
void serial8250_resume_port(int line);
#endif
include/linux/serial_core.h
浏览文件 @ 138307b4
......@@ -142,8 +142,8 @@ struct uart_ops {
unsigned int (*tx_empty)(struct uart_port *);
void (*set_mctrl)(struct uart_port *, unsigned int mctrl);
unsigned int (*get_mctrl)(struct uart_port *);
void (*stop_tx)(struct uart_port *, unsigned int tty_stop);
void (*start_tx)(struct uart_port *, unsigned int tty_start);
void (*stop_tx)(struct uart_port *);
void (*start_tx)(struct uart_port *);
void (*send_xchar)(struct uart_port *, char ch);
void (*stop_rx)(struct uart_port *);
void (*enable_ms)(struct uart_port *);
......@@ -360,8 +360,6 @@ struct tty_driver *uart_console_device(struct console *co, int *index);
*/
int uart_register_driver(struct uart_driver *uart);
void uart_unregister_driver(struct uart_driver *uart);
void __deprecated uart_unregister_port(struct uart_driver *reg, int line);
int __deprecated uart_register_port(struct uart_driver *reg, struct uart_port *port);
int uart_add_one_port(struct uart_driver *reg, struct uart_port *port);
int uart_remove_one_port(struct uart_driver *reg, struct uart_port *port);
int uart_match_port(struct uart_port *port1, struct uart_port *port2);
......@@ -468,13 +466,13 @@ uart_handle_cts_change(struct uart_port *port, unsigned int status)
if (tty->hw_stopped) {
if (status) {
tty->hw_stopped = 0;
port->ops->start_tx(port, 0);
port->ops->start_tx(port);
uart_write_wakeup(port);
}
} else {
if (!status) {
tty->hw_stopped = 1;
port->ops->stop_tx(port, 0);
port->ops->stop_tx(port);
}
}
}
......
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