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-rw-r--r--drivers/serial/8250.c5
-rw-r--r--drivers/serial/8250_pnp.c2
-rw-r--r--drivers/serial/dz.c48
-rw-r--r--drivers/serial/mpc52xx_uart.c4
-rw-r--r--drivers/serial/sa1100.c4
-rw-r--r--drivers/serial/serial_core.c84
6 files changed, 82 insertions, 65 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 3742753241e..e08510d09ff 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -999,7 +999,10 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
serial_outp(up, UART_MCR, save_mcr);
serial8250_clear_fifos(up);
(void)serial_in(up, UART_RX);
- serial_outp(up, UART_IER, 0);
+ if (up->capabilities & UART_CAP_UUE)
+ serial_outp(up, UART_IER, UART_IER_UUE);
+ else
+ serial_outp(up, UART_IER, 0);
out:
spin_unlock_irqrestore(&up->port.lock, flags);
diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c
index 5d8660a42b7..b79ed0665d5 100644
--- a/drivers/serial/8250_pnp.c
+++ b/drivers/serial/8250_pnp.c
@@ -323,6 +323,8 @@ static const struct pnp_device_id pnp_dev_table[] = {
{ "USR9180", 0 },
/* U.S. Robotics 56K Voice INT PnP*/
{ "USR9190", 0 },
+ /* HP Compaq Tablet PC tc1100 Wacom tablet */
+ { "WACF005", 0 },
/* Rockwell's (PORALiNK) 33600 INT PNP */
{ "WCI0003", 0 },
/* Unkown PnP modems */
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index e63b9dffc8d..4d8516d1bb7 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -1,9 +1,9 @@
/*
- * dz.c: Serial port driver for DECStations equiped
+ * dz.c: Serial port driver for DECStations equiped
* with the DZ chipset.
*
- * Copyright (C) 1998 Olivier A. D. Lebaillif
- *
+ * Copyright (C) 1998 Olivier A. D. Lebaillif
+ *
* Email: olivier.lebaillif@ifrsys.com
*
* [31-AUG-98] triemer
@@ -11,14 +11,14 @@
* removed base_addr code - moving address assignment to setup.c
* Changed name of dz_init to rs_init to be consistent with tc code
* [13-NOV-98] triemer fixed code to receive characters
- * after patches by harald to irq code.
+ * after patches by harald to irq code.
* [09-JAN-99] triemer minor fix for schedule - due to removal of timeout
* field from "current" - somewhere between 2.1.121 and 2.1.131
Qua Jun 27 15:02:26 BRT 2001
* [27-JUN-2001] Arnaldo Carvalho de Melo <acme@conectiva.com.br> - cleanups
- *
- * Parts (C) 1999 David Airlie, airlied@linux.ie
- * [07-SEP-99] Bugfixes
+ *
+ * Parts (C) 1999 David Airlie, airlied@linux.ie
+ * [07-SEP-99] Bugfixes
*
* [06-Jan-2002] Russell King <rmk@arm.linux.org.uk>
* Converted to new serial core
@@ -64,7 +64,7 @@ static struct dz_port dz_ports[DZ_NB_PORT];
#ifdef DEBUG_DZ
/*
- * debugging code to send out chars via prom
+ * debugging code to send out chars via prom
*/
static void debug_console(const char *s, int count)
{
@@ -82,7 +82,7 @@ static void debug_console(const char *s, int count)
* ------------------------------------------------------------
* dz_in () and dz_out ()
*
- * These routines are used to access the registers of the DZ
+ * These routines are used to access the registers of the DZ
* chip, hiding relocation differences between implementation.
* ------------------------------------------------------------
*/
@@ -106,8 +106,8 @@ static inline void dz_out(struct dz_port *dport, unsigned offset,
* ------------------------------------------------------------
* rs_stop () and rs_start ()
*
- * These routines are called before setting or resetting
- * tty->stopped. They enable or disable transmitter interrupts,
+ * These routines are called before setting or resetting
+ * tty->stopped. They enable or disable transmitter interrupts,
* as necessary.
* ------------------------------------------------------------
*/
@@ -156,17 +156,17 @@ static void dz_enable_ms(struct uart_port *port)
/*
* ------------------------------------------------------------
- * Here starts the interrupt handling routines. All of the
- * following subroutines are declared as inline and are folded
- * into dz_interrupt. They were separated out for readability's
- * sake.
+ * Here starts the interrupt handling routines. All of the
+ * following subroutines are declared as inline and are folded
+ * into dz_interrupt. They were separated out for readability's
+ * sake.
*
* Note: rs_interrupt() is a "fast" interrupt, which means that it
* runs with interrupts turned off. People who may want to modify
* rs_interrupt() should try to keep the interrupt handler as fast as
* possible. After you are done making modifications, it is not a bad
* idea to do:
- *
+ *
* make drivers/serial/dz.s
*
* and look at the resulting assemble code in dz.s.
@@ -403,7 +403,7 @@ static void dz_set_mctrl(struct uart_port *uport, unsigned int mctrl)
* startup ()
*
* various initialization tasks
- * -------------------------------------------------------------------
+ * -------------------------------------------------------------------
*/
static int dz_startup(struct uart_port *uport)
{
@@ -430,13 +430,13 @@ static int dz_startup(struct uart_port *uport)
return 0;
}
-/*
+/*
* -------------------------------------------------------------------
* shutdown ()
*
* This routine will shutdown a serial port; interrupts are disabled, and
* DTR is dropped if the hangup on close termio flag is on.
- * -------------------------------------------------------------------
+ * -------------------------------------------------------------------
*/
static void dz_shutdown(struct uart_port *uport)
{
@@ -451,7 +451,7 @@ static void dz_shutdown(struct uart_port *uport)
* release the bus after transmitting. This must be done when
* the transmit shift register is empty, not be done when the
* transmit holding register is empty. This functionality
- * allows an RS485 driver to be written in user space.
+ * allows an RS485 driver to be written in user space.
*/
static unsigned int dz_tx_empty(struct uart_port *uport)
{
@@ -645,9 +645,9 @@ static void __init dz_init_ports(void)
if (mips_machtype == MACH_DS23100 ||
mips_machtype == MACH_DS5100)
- base = (unsigned long) KN01_DZ11_BASE;
+ base = CKSEG1ADDR(KN01_SLOT_BASE + KN01_DZ11);
else
- base = (unsigned long) KN02_DZ11_BASE;
+ base = CKSEG1ADDR(KN02_SLOT_BASE + KN02_DZ11);
for (i = 0, dport = dz_ports; i < DZ_NB_PORT; i++, dport++) {
spin_lock_init(&dport->port.lock);
@@ -695,13 +695,13 @@ static void dz_console_put_char(struct dz_port *dport, unsigned char ch)
spin_unlock_irqrestore(&dport->port.lock, flags);
}
-/*
+/*
* -------------------------------------------------------------------
* dz_console_print ()
*
* dz_console_print is registered for printk.
* The console must be locked when we get here.
- * -------------------------------------------------------------------
+ * -------------------------------------------------------------------
*/
static void dz_console_print(struct console *cons,
const char *str,
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 5d3cb848644..b8727d9bf69 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -725,7 +725,7 @@ mpc52xx_uart_probe(struct platform_device *dev)
int i, idx, ret;
/* Check validity & presence */
- idx = pdev->id;
+ idx = dev->id;
if (idx < 0 || idx >= MPC52xx_PSC_MAXNUM)
return -EINVAL;
@@ -748,7 +748,7 @@ mpc52xx_uart_probe(struct platform_device *dev)
port->ops = &mpc52xx_uart_ops;
/* Search for IRQ and mapbase */
- for (i=0 ; i<pdev->num_resources ; i++, res++) {
+ for (i=0 ; i<dev->num_resources ; i++, res++) {
if (res->flags & IORESOURCE_MEM)
port->mapbase = res->start;
else if (res->flags & IORESOURCE_IRQ)
diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index fd9deee20e0..0e3daf6d7b5 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -156,7 +156,7 @@ static void sa1100_stop_tx(struct uart_port *port)
}
/*
- * interrupts may not be disabled on entry
+ * port locked and interrupts disabled
*/
static void sa1100_start_tx(struct uart_port *port)
{
@@ -164,11 +164,9 @@ static void sa1100_start_tx(struct uart_port *port)
unsigned long flags;
u32 utcr3;
- spin_lock_irqsave(&sport->port.lock, flags);
utcr3 = UART_GET_UTCR3(sport);
sport->port.read_status_mask |= UTSR0_TO_SM(UTSR0_TFS);
UART_PUT_UTCR3(sport, utcr3 | UTCR3_TIE);
- spin_unlock_irqrestore(&sport->port.lock, flags);
}
/*
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 427a2385807..2331296e1e1 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -209,33 +209,45 @@ static void uart_shutdown(struct uart_state *state)
struct uart_info *info = state->info;
struct uart_port *port = state->port;
- if (!(info->flags & UIF_INITIALIZED))
- return;
-
/*
- * Turn off DTR and RTS early.
+ * Set the TTY IO error marker
*/
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
- uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
+ if (info->tty)
+ set_bit(TTY_IO_ERROR, &info->tty->flags);
- /*
- * clear delta_msr_wait queue to avoid mem leaks: we may free
- * the irq here so the queue might never be woken up. Note
- * that we won't end up waiting on delta_msr_wait again since
- * any outstanding file descriptors should be pointing at
- * hung_up_tty_fops now.
- */
- wake_up_interruptible(&info->delta_msr_wait);
+ if (info->flags & UIF_INITIALIZED) {
+ info->flags &= ~UIF_INITIALIZED;
- /*
- * Free the IRQ and disable the port.
- */
- port->ops->shutdown(port);
+ /*
+ * Turn off DTR and RTS early.
+ */
+ if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+ uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
+
+ /*
+ * clear delta_msr_wait queue to avoid mem leaks: we may free
+ * the irq here so the queue might never be woken up. Note
+ * that we won't end up waiting on delta_msr_wait again since
+ * any outstanding file descriptors should be pointing at
+ * hung_up_tty_fops now.
+ */
+ wake_up_interruptible(&info->delta_msr_wait);
+
+ /*
+ * Free the IRQ and disable the port.
+ */
+ port->ops->shutdown(port);
+
+ /*
+ * Ensure that the IRQ handler isn't running on another CPU.
+ */
+ synchronize_irq(port->irq);
+ }
/*
- * Ensure that the IRQ handler isn't running on another CPU.
+ * kill off our tasklet
*/
- synchronize_irq(port->irq);
+ tasklet_kill(&info->tlet);
/*
* Free the transmit buffer page.
@@ -244,15 +256,6 @@ static void uart_shutdown(struct uart_state *state)
free_page((unsigned long)info->xmit.buf);
info->xmit.buf = NULL;
}
-
- /*
- * kill off our tasklet
- */
- tasklet_kill(&info->tlet);
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
-
- info->flags &= ~UIF_INITIALIZED;
}
/**
@@ -1928,14 +1931,25 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
if (state->info && state->info->flags & UIF_INITIALIZED) {
struct uart_ops *ops = port->ops;
+ int ret;
ops->set_mctrl(port, 0);
- ops->startup(port);
- uart_change_speed(state, NULL);
- spin_lock_irq(&port->lock);
- ops->set_mctrl(port, port->mctrl);
- ops->start_tx(port);
- spin_unlock_irq(&port->lock);
+ ret = ops->startup(port);
+ if (ret == 0) {
+ uart_change_speed(state, NULL);
+ spin_lock_irq(&port->lock);
+ ops->set_mctrl(port, port->mctrl);
+ ops->start_tx(port);
+ spin_unlock_irq(&port->lock);
+ } else {
+ /*
+ * Failed to resume - maybe hardware went away?
+ * Clear the "initialized" flag so we won't try
+ * to call the low level drivers shutdown method.
+ */
+ state->info->flags &= ~UIF_INITIALIZED;
+ uart_shutdown(state);
+ }
}
up(&state->sem);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-21 16:12:06 +0000