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.
#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"
static int register_serial_portandirq(unsigned int port, int irq)
{
- struct serial_struct serial;
-
+ struct uart_port uart;
+
switch ( port ) {
case 0x3f8:
case 0x2f8:
} /* 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);
}
#endif
if ( pDrvData->sLine >= 0 ) {
- unregister_serial(pDrvData->sLine);
+ serial8250_unregister_port(pDrvData->sLine);
}
if (pDrvData->bMwaveDevRegistered) {
misc_deregister(&mwave_misc_dev);
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.
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
* 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);
}
}
-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);
goto out;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- serial21285_stop_tx(port, 0);
+ serial21285_stop_tx(port);
goto out;
}
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
- serial21285_stop_tx(port, 0);
+ serial21285_stop_tx(port);
out:
return IRQ_HANDLED;
}
}
-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;
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;
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;
}
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);
*/
#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;
config SERIAL_TXX9
bool "TMPTX39XX/49XX SIO support"
- depends HAS_TXX9_SERIAL
+ depends HAS_TXX9_SERIAL && BROKEN
select SERIAL_CORE
default y
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;
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;
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- pl010_stop_tx(port, 0);
+ pl010_stop_tx(port);
return;
}
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)
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;
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;
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&uap->port)) {
- pl011_stop_tx(&uap->port, 0);
+ pl011_stop_tx(&uap->port);
return;
}
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)
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;
}
}
-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;
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
- serial8250_stop_tx(&up->port, 0);
+ serial8250_stop_tx(&up->port);
return;
}
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)
#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));
}
}
-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));
return IRQ_HANDLED;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- clps711xuart_stop_tx(port, 0);
+ clps711xuart_stop_tx(port);
return IRQ_HANDLED;
}
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
- clps711xuart_stop_tx(port, 0);
+ clps711xuart_stop_tx(port);
return IRQ_HANDLED;
}
/*
* 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;
/*
* 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;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- cpm_uart_stop_tx(port, 0);
+ cpm_uart_stop_tx(port);
return 0;
}
uart_write_wakeup(port);
if (uart_circ_empty(xmit)) {
- cpm_uart_stop_tx(port, 0);
+ cpm_uart_stop_tx(port);
return 0;
}
* ------------------------------------------------------------
*/
-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;
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;
}
/* 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;
}
/* Are we done */
if (uart_circ_empty(xmit))
- dz_stop_tx(&dport->port, 0);
+ dz_stop_tx(&dport->port);
}
/*
*/
static void dz_shutdown(struct uart_port *uport)
{
- dz_stop_tx(uport, 0);
+ dz_stop_tx(uport);
}
/*
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;
/*
* 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;
} 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;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) {
- imx_stop_tx(&sport->port, 0);
+ imx_stop_tx(&sport->port);
goto out;
}
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;
}
/*
/**
* 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)
{
}
/**
* 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;
}
/* 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;
}
/* 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);
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;
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;
__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;
}
}
-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;
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;
}
DEBUG_INTR("THRE...");
if (uart_circ_empty(xmit))
- m32r_sio_stop_tx(&up->port, 0);
+ m32r_sio_stop_tx(&up->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;
}
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;
/* 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;
}
/* Maybe we're done after all */
if (uart_circ_empty(xmit)) {
- mpc52xx_uart_stop_tx(port,0);
+ mpc52xx_uart_stop_tx(port);
return 0;
}
}
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;
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;
}
/**
* 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)
{
}
}
if(uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- mux_stop_tx(port, 0);
+ mux_stop_tx(port);
return;
}
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
- mux_stop_tx(port, 0);
+ mux_stop_tx(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;
}
* 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;
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;
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;
}
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;
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));
}
}
-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)
*/
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- s3c24xx_serial_stop_tx(port, 0);
+ s3c24xx_serial_stop_tx(port);
goto out;
}
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
- s3c24xx_serial_stop_tx(port, 0);
+ s3c24xx_serial_stop_tx(port);
out:
return IRQ_HANDLED;
/*
* 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;
/*
* 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;
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;
}
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)
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);
}
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)
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);
}
}
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);
}
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);
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);
}
}
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);
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);
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;
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;
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;
}
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)
#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);
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);
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];
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;
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__)
/**
* 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)
{
}
/**
* 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,
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 */
}
/**
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,
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,
}
/* 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;
}
/* 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;
}
#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;
/*
* 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);
}
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;
}
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)
}
/* 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;
}
/* 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);
#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);
}
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- uart00_stop_tx(port, 0);
+ uart00_stop_tx(port);
return;
}
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);
\f
/* 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)
{
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));
}
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;
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;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- siu_stop_tx(port, 0);
+ siu_stop_tx(port);
return;
}
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)
#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_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 */
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
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 *);
*/
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);
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);
}
}
}
projects / linux-2.6 / commitdiff