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tty and serial merge for 3.4-rc1 

Here's the big serial and tty merge for the 3.4-rc1 tree.
 
 There's loads of fixes and reworks in here from Jiri for the tty layer,
 and a number of patches from Alan to help try to wrestle the vt layer
 into a sane model.
 
 Other than that, lots of driver updates and fixes, and other minor
 stuff, all detailed in the shortlog.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY/serial patches from Greg KH:
 "tty and serial merge for 3.4-rc1

  Here's the big serial and tty merge for the 3.4-rc1 tree.

  There's loads of fixes and reworks in here from Jiri for the tty
  layer, and a number of patches from Alan to help try to wrestle the vt
  layer into a sane model.

  Other than that, lots of driver updates and fixes, and other minor
  stuff, all detailed in the shortlog."

* tag 'tty-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (132 commits)
  serial: pxa: add clk_prepare/clk_unprepare calls
  TTY: Wrong unicode value copied in con_set_unimap()
  serial: PL011: clear pending interrupts
  serial: bfin-uart: Don't access tty circular buffer in TX DMA interrupt after it is reset.
  vt: NULL dereference in vt_do_kdsk_ioctl()
  tty: serial: vt8500: fix annotations for probe/remove
  serial: remove back and forth conversions in serial_out_sync
  serial: use serial_port_in/out vs serial_in/out in 8250
  serial: introduce generic port in/out helpers
  serial: reduce number of indirections in 8250 code
  serial: delete useless void casts in 8250.c
  serial: make 8250's serial_in shareable to other drivers.
  serial: delete last unused traces of pausing I/O in 8250
  pch_uart: Add module parameter descriptions
  pch_uart: Use existing default_baud in setup_console
  pch_uart: Add user_uartclk parameter
  pch_uart: Add Fish River Island II uart clock quirks
  pch_uart: Use uartclk instead of base_baud
  mpc5200b/uart: select more tolerant uart prescaler on low baudrates
  tty: moxa: fix bit test in moxa_start()
  ...
This commit is contained in:
Linus Torvalds 2012-03-20 11:24:39 -07:00
parent 71e7ff2578 fb8ebec00b
commit 843ec558f9
117 changed files with 3206 additions and 3138 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
Documentation/devicetree/bindings/tty/serial/efm32-uart.txt Normal file
View File

@ -0,0 +1,14 @@
* Energymicro efm32 UART
Required properties:
- compatible : Should be "efm32,uart"
- reg : Address and length of the register set
- interrupts : Should contain uart interrupt
Example:
uart@0x4000c400 {
compatible = "efm32,uart";
reg = <0x4000c400 0x400>;
interrupts = <15>;
};

2
MAINTAINERS
View File

@ -6212,8 +6212,8 @@ L: sparclinux@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
S: Maintained
F: include/linux/sunserialcore.h
F: drivers/tty/serial/suncore.c
F: drivers/tty/serial/suncore.h
F: drivers/tty/serial/sunhv.c
F: drivers/tty/serial/sunsab.c
F: drivers/tty/serial/sunsab.h

78
arch/alpha/kernel/srmcons.c
View File

@ -30,10 +30,9 @@ static int srm_is_registered_console = 0;
#define MAX_SRM_CONSOLE_DEVICES 1 /* only support 1 console device */
struct srmcons_private {
struct tty_struct *tty;
struct tty_port port;
struct timer_list timer;
spinlock_t lock;
};
} srmcons_singleton;
typedef union _srmcons_result {
struct {
@ -68,22 +67,21 @@ static void
srmcons_receive_chars(unsigned long data)
{
struct srmcons_private *srmconsp = (struct srmcons_private *)data;
struct tty_port *port = &srmconsp->port;
unsigned long flags;
int incr = 10;
local_irq_save(flags);
if (spin_trylock(&srmcons_callback_lock)) {
if (!srmcons_do_receive_chars(srmconsp->tty))
if (!srmcons_do_receive_chars(port->tty))
incr = 100;
spin_unlock(&srmcons_callback_lock);
}
spin_lock(&srmconsp->lock);
if (srmconsp->tty) {
srmconsp->timer.expires = jiffies + incr;
add_timer(&srmconsp->timer);
}
spin_unlock(&srmconsp->lock);
spin_lock(&port->lock);
if (port->tty)
mod_timer(&srmconsp->timer, jiffies + incr);
spin_unlock(&port->lock);
local_irq_restore(flags);
}
@ -155,57 +153,23 @@ srmcons_chars_in_buffer(struct tty_struct *tty)
return 0;
}
static int
srmcons_get_private_struct(struct srmcons_private **ps)
{
static struct srmcons_private *srmconsp = NULL;
static DEFINE_SPINLOCK(srmconsp_lock);
unsigned long flags;
int retval = 0;
if (srmconsp == NULL) {
srmconsp = kmalloc(sizeof(*srmconsp), GFP_KERNEL);
spin_lock_irqsave(&srmconsp_lock, flags);
if (srmconsp == NULL)
retval = -ENOMEM;
else {
srmconsp->tty = NULL;
spin_lock_init(&srmconsp->lock);
init_timer(&srmconsp->timer);
}
spin_unlock_irqrestore(&srmconsp_lock, flags);
}
*ps = srmconsp;
return retval;
}
static int
srmcons_open(struct tty_struct *tty, struct file *filp)
{
struct srmcons_private *srmconsp;
struct srmcons_private *srmconsp = &srmcons_singleton;
struct tty_port *port = &srmconsp->port;
unsigned long flags;
int retval;
retval = srmcons_get_private_struct(&srmconsp);
if (retval)
return retval;
spin_lock_irqsave(&port->lock, flags);
spin_lock_irqsave(&srmconsp->lock, flags);
if (!srmconsp->tty) {
if (!port->tty) {
tty->driver_data = srmconsp;
srmconsp->tty = tty;
srmconsp->timer.function = srmcons_receive_chars;
srmconsp->timer.data = (unsigned long)srmconsp;
srmconsp->timer.expires = jiffies + 10;
add_timer(&srmconsp->timer);
tty->port = port;
port->tty = tty; /* XXX proper refcounting */
mod_timer(&srmconsp->timer, jiffies + 10);
}
spin_unlock_irqrestore(&srmconsp->lock, flags);
spin_unlock_irqrestore(&port->lock, flags);
return 0;
}
@ -214,16 +178,17 @@ static void
srmcons_close(struct tty_struct *tty, struct file *filp)
{
struct srmcons_private *srmconsp = tty->driver_data;
struct tty_port *port = &srmconsp->port;
unsigned long flags;
spin_lock_irqsave(&srmconsp->lock, flags);
spin_lock_irqsave(&port->lock, flags);
if (tty->count == 1) {
srmconsp->tty = NULL;
port->tty = NULL;
del_timer(&srmconsp->timer);
}
spin_unlock_irqrestore(&srmconsp->lock, flags);
spin_unlock_irqrestore(&port->lock, flags);
}
@ -240,6 +205,9 @@ static const struct tty_operations srmcons_ops = {
static int __init
srmcons_init(void)
{
tty_port_init(&srmcons_singleton.port);
setup_timer(&srmcons_singleton.timer, srmcons_receive_chars,
(unsigned long)&srmcons_singleton);
if (srm_is_registered_console) {
struct tty_driver *driver;
int err;

17
arch/ia64/hp/sim/boot/fw-emu.c
View File

@ -160,28 +160,19 @@ sal_emulator (long index, unsigned long in1, unsigned long in2,
*/
status = 0;
if (index == SAL_FREQ_BASE) {
switch (in1) {
case SAL_FREQ_BASE_PLATFORM:
if (in1 == SAL_FREQ_BASE_PLATFORM)
r9 = 200000000;
break;
case SAL_FREQ_BASE_INTERVAL_TIMER:
else if (in1 == SAL_FREQ_BASE_INTERVAL_TIMER) {
/*
* Is this supposed to be the cr.itc frequency
* or something platform specific? The SAL
* doc ain't exactly clear on this...
*/
r9 = 700000000;
break;
case SAL_FREQ_BASE_REALTIME_CLOCK:
} else if (in1 == SAL_FREQ_BASE_REALTIME_CLOCK)
r9 = 1;
break;
default:
else
status = -1;
break;
}
} else if (index == SAL_SET_VECTORS) {
;
} else if (index == SAL_GET_STATE_INFO) {

36
arch/ia64/hp/sim/hpsim_irq.c
View File

@ -10,6 +10,8 @@
#include <linux/sched.h>
#include <linux/irq.h>
#include "hpsim_ssc.h"
static unsigned int
hpsim_irq_startup(struct irq_data *data)
{
@ -37,15 +39,37 @@ static struct irq_chip irq_type_hp_sim = {
.irq_set_affinity = hpsim_set_affinity_noop,
};
static void hpsim_irq_set_chip(int irq)
{
struct irq_chip *chip = irq_get_chip(irq);
if (chip == &no_irq_chip)
irq_set_chip(irq, &irq_type_hp_sim);
}
static void hpsim_connect_irq(int intr, int irq)
{
ia64_ssc(intr, irq, 0, 0, SSC_CONNECT_INTERRUPT);
}
int hpsim_get_irq(int intr)
{
int irq = assign_irq_vector(AUTO_ASSIGN);
if (irq >= 0) {
hpsim_irq_set_chip(irq);
irq_set_handler(irq, handle_simple_irq);
hpsim_connect_irq(intr, irq);
}
return irq;
}
void __init
hpsim_irq_init (void)
{
int i;
for_each_active_irq(i) {
struct irq_chip *chip = irq_get_chip(i);
if (chip == &no_irq_chip)
irq_set_chip(i, &irq_type_hp_sim);
}
for_each_active_irq(i)
hpsim_irq_set_chip(i);
}

6
arch/ia64/hp/sim/hpsim_setup.c
View File

@ -25,12 +25,6 @@
#include "hpsim_ssc.h"
void
ia64_ssc_connect_irq (long intr, long irq)
{
ia64_ssc(intr, irq, 0, 0, SSC_CONNECT_INTERRUPT);
}
void
ia64_ctl_trace (long on)
{

19
arch/ia64/hp/sim/simeth.c
View File

@ -128,17 +128,6 @@ netdev_probe(char *name, unsigned char *ether)
}
static inline int
netdev_connect(int irq)
{
/* XXX Fix me
* this does not support multiple cards
* also no return value
*/
ia64_ssc_connect_irq(NETWORK_INTR, irq);
return 0;
}
static inline int
netdev_attach(int fd, int irq, unsigned int ipaddr)
{
@ -226,15 +215,13 @@ simeth_probe1(void)
return err;
}
if ((rc = assign_irq_vector(AUTO_ASSIGN)) < 0)
panic("%s: out of interrupt vectors!\n", __func__);
dev->irq = rc;
/*
* attach the interrupt in the simulator, this does enable interrupts
* until a netdev_attach() is called
*/
netdev_connect(dev->irq);
if ((rc = hpsim_get_irq(NETWORK_INTR)) < 0)
panic("%s: out of interrupt vectors!\n", __func__);
dev->irq = rc;
printk(KERN_INFO "%s: hosteth=%s simfd=%d, HwAddr",
dev->name, simeth_device, local->simfd);

707
arch/ia64/hp/sim/simserial.c
View File

@ -4,16 +4,11 @@
* This driver is mostly used for bringup purposes and will go away.
* It has a strong dependency on the system console. All outputs
* are rerouted to the same facility as the one used by printk which, in our
* case means sys_sim.c console (goes via the simulator). The code hereafter
* is completely leveraged from the serial.c driver.
* case means sys_sim.c console (goes via the simulator).
*
* Copyright (C) 1999-2000, 2002-2003 Hewlett-Packard Co
* Stephane Eranian <eranian@hpl.hp.com>
* David Mosberger-Tang <davidm@hpl.hp.com>
*
* 02/04/00 D. Mosberger Merged in serial.c bug fixes in rs_close().
* 02/25/00 D. Mosberger Synced up with 2.3.99pre-5 version of serial.c.
* 07/30/02 D. Mosberger Replace sti()/cli() with explicit spinlocks & local irq masking
*/
#include <linux/init.h>
@ -27,15 +22,17 @@
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/capability.h>
#include <linux/circ_buf.h>
#include <linux/console.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/serial.h>
#include <linux/serialP.h>
#include <linux/sysrq.h>
#include <linux/uaccess.h>
#include <asm/irq.h>
#include <asm/hw_irq.h>
#include <asm/uaccess.h>
#include <asm/hpsim.h>
#include "hpsim_ssc.h"
#undef SIMSERIAL_DEBUG /* define this to get some debug information */
@ -43,118 +40,44 @@
#define NR_PORTS 1 /* only one port for now */
#define IRQ_T(info) ((info->flags & ASYNC_SHARE_IRQ) ? IRQF_SHARED : IRQF_DISABLED)
#define SSC_GETCHAR 21
extern long ia64_ssc (long, long, long, long, int);
extern void ia64_ssc_connect_irq (long intr, long irq);
static char *serial_name = "SimSerial driver";
static char *serial_version = "0.6";
/*
* This has been extracted from asm/serial.h. We need one eventually but
* I don't know exactly what we're going to put in it so just fake one
* for now.
*/
#define BASE_BAUD ( 1843200 / 16 )
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
/*
* Most of the values here are meaningless to this particular driver.
* However some values must be preserved for the code (leveraged from serial.c
* to work correctly).
* port must not be 0
* type must not be UNKNOWN
* So I picked arbitrary (guess from where?) values instead
*/
static struct serial_state rs_table[NR_PORTS]={
/* UART CLK PORT IRQ FLAGS */
{ 0, BASE_BAUD, 0x3F8, 0, STD_COM_FLAGS,0,PORT_16550 } /* ttyS0 */
struct serial_state {
struct tty_port port;
struct circ_buf xmit;
int irq;
int x_char;
};
/*
* Just for the fun of it !
*/
static struct serial_uart_config uart_config[] = {
{ "unknown", 1, 0 },
{ "8250", 1, 0 },
{ "16450", 1, 0 },
{ "16550", 1, 0 },
{ "16550A", 16, UART_CLEAR_FIFO | UART_USE_FIFO },
{ "cirrus", 1, 0 },
{ "ST16650", 1, UART_CLEAR_FIFO | UART_STARTECH },
{ "ST16650V2", 32, UART_CLEAR_FIFO | UART_USE_FIFO |
UART_STARTECH },
{ "TI16750", 64, UART_CLEAR_FIFO | UART_USE_FIFO},
{ NULL, 0}
};
static struct serial_state rs_table[NR_PORTS];
struct tty_driver *hp_simserial_driver;
static struct async_struct *IRQ_ports[NR_IRQS];
static struct console *console;
static unsigned char *tmp_buf;
extern struct console *console_drivers; /* from kernel/printk.c */
/*
* ------------------------------------------------------------
* rs_stop() and rs_start()
*
* This routines are called before setting or resetting tty->stopped.
* They enable or disable transmitter interrupts, as necessary.
* ------------------------------------------------------------
*/
static void rs_stop(struct tty_struct *tty)
{
#ifdef SIMSERIAL_DEBUG
printk("rs_stop: tty->stopped=%d tty->hw_stopped=%d tty->flow_stopped=%d\n",
tty->stopped, tty->hw_stopped, tty->flow_stopped);
#endif
}
static void rs_start(struct tty_struct *tty)
{
#ifdef SIMSERIAL_DEBUG
printk("rs_start: tty->stopped=%d tty->hw_stopped=%d tty->flow_stopped=%d\n",
tty->stopped, tty->hw_stopped, tty->flow_stopped);
#endif
}
static void receive_chars(struct tty_struct *tty)
static void receive_chars(struct tty_struct *tty)
{
unsigned char ch;
static unsigned char seen_esc = 0;
while ( (ch = ia64_ssc(0, 0, 0, 0, SSC_GETCHAR)) ) {
if ( ch == 27 && seen_esc == 0 ) {
if (ch == 27 && seen_esc == 0) {
seen_esc = 1;
continue;
} else {
if ( seen_esc==1 && ch == 'O' ) {
seen_esc = 2;
continue;
} else if ( seen_esc == 2 ) {
if ( ch == 'P' ) /* F1 */
show_state();
} else if (seen_esc == 1 && ch == 'O') {
seen_esc = 2;
continue;
} else if (seen_esc == 2) {
if (ch == 'P') /* F1 */
show_state();
#ifdef CONFIG_MAGIC_SYSRQ
if ( ch == 'S' ) { /* F4 */
do
ch = ia64_ssc(0, 0, 0, 0,
SSC_GETCHAR);
while (!ch);
handle_sysrq(ch);
}
#endif
seen_esc = 0;
continue;
if (ch == 'S') { /* F4 */
do {
ch = ia64_ssc(0, 0, 0, 0, SSC_GETCHAR);
} while (!ch);
handle_sysrq(ch);
}
#endif
seen_esc = 0;
continue;
}
seen_esc = 0;
@ -169,22 +92,19 @@ static void receive_chars(struct tty_struct *tty)
*/
static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
{
struct async_struct * info;
struct serial_state *info = dev_id;
struct tty_struct *tty = tty_port_tty_get(&info->port);
/*
* I don't know exactly why they don't use the dev_id opaque data
* pointer instead of this extra lookup table
*/
info = IRQ_ports[irq];
if (!info || !info->tty) {
printk(KERN_INFO "simrs_interrupt_single: info|tty=0 info=%p problem\n", info);
if (!tty) {
printk(KERN_INFO "%s: tty=0 problem\n", __func__);
return IRQ_NONE;
}
/*
* pretty simple in our case, because we only get interrupts
* on inbound traffic
*/
receive_chars(info->tty);
receive_chars(tty);
tty_kref_put(tty);
return IRQ_HANDLED;
}
@ -194,17 +114,12 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
* -------------------------------------------------------------------
*/
static void do_softint(struct work_struct *private_)
{
printk(KERN_ERR "simserial: do_softint called\n");
}
static int rs_put_char(struct tty_struct *tty, unsigned char ch)
{
struct async_struct *info = (struct async_struct *)tty->driver_data;
struct serial_state *info = tty->driver_data;
unsigned long flags;
if (!tty || !info->xmit.buf)
if (!info->xmit.buf)
return 0;
local_irq_save(flags);
@ -218,12 +133,12 @@ static int rs_put_char(struct tty_struct *tty, unsigned char ch)
return 1;
}
static void transmit_chars(struct async_struct *info, int *intr_done)
static void transmit_chars(struct tty_struct *tty, struct serial_state *info,
int *intr_done)
{
int count;
unsigned long flags;
local_irq_save(flags);
if (info->x_char) {
@ -231,16 +146,16 @@ static void transmit_chars(struct async_struct *info, int *intr_done)
console->write(console, &c, 1);
info->state->icount.tx++;
info->x_char = 0;
goto out;
}
if (info->xmit.head == info->xmit.tail || info->tty->stopped || info->tty->hw_stopped) {
if (info->xmit.head == info->xmit.tail || tty->stopped ||
tty->hw_stopped) {
#ifdef SIMSERIAL_DEBUG
printk("transmit_chars: head=%d, tail=%d, stopped=%d\n",
info->xmit.head, info->xmit.tail, info->tty->stopped);
info->xmit.head, info->xmit.tail, tty->stopped);
#endif
goto out;
}
@ -272,24 +187,24 @@ out:
static void rs_flush_chars(struct tty_struct *tty)
{
struct async_struct *info = (struct async_struct *)tty->driver_data;
struct serial_state *info = tty->driver_data;
if (info->xmit.head == info->xmit.tail || tty->stopped || tty->hw_stopped ||
!info->xmit.buf)
if (info->xmit.head == info->xmit.tail || tty->stopped ||
tty->hw_stopped || !info->xmit.buf)
return;
transmit_chars(info, NULL);
transmit_chars(tty, info, NULL);
}
static int rs_write(struct tty_struct * tty,
const unsigned char *buf, int count)
{
struct serial_state *info = tty->driver_data;
int c, ret = 0;
struct async_struct *info = (struct async_struct *)tty->driver_data;
unsigned long flags;
if (!tty || !info->xmit.buf || !tmp_buf) return 0;
if (!info->xmit.buf)
return 0;
local_irq_save(flags);
while (1) {
@ -310,30 +225,30 @@ static int rs_write(struct tty_struct * tty,
/*
* Hey, we transmit directly from here in our case
*/
if (CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE)
&& !tty->stopped && !tty->hw_stopped) {
transmit_chars(info, NULL);
}
if (CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) &&
!tty->stopped && !tty->hw_stopped)
transmit_chars(tty, info, NULL);
return ret;
}
static int rs_write_room(struct tty_struct *tty)
{
struct async_struct *info = (struct async_struct *)tty->driver_data;
struct serial_state *info = tty->driver_data;
return CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
}
static int rs_chars_in_buffer(struct tty_struct *tty)
{
struct async_struct *info = (struct async_struct *)tty->driver_data;
struct serial_state *info = tty->driver_data;
return CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
}
static void rs_flush_buffer(struct tty_struct *tty)
{
struct async_struct *info = (struct async_struct *)tty->driver_data;
struct serial_state *info = tty->driver_data;
unsigned long flags;
local_irq_save(flags);
@ -349,7 +264,7 @@ static void rs_flush_buffer(struct tty_struct *tty)
*/
static void rs_send_xchar(struct tty_struct *tty, char ch)
{
struct async_struct *info = (struct async_struct *)tty->driver_data;
struct serial_state *info = tty->driver_data;
info->x_char = ch;
if (ch) {
@ -357,7 +272,7 @@ static void rs_send_xchar(struct tty_struct *tty, char ch)
* I guess we could call console->write() directly but
* let's do that for now.
*/
transmit_chars(info, NULL);
transmit_chars(tty, info, NULL);
}
}
@ -371,14 +286,15 @@ static void rs_send_xchar(struct tty_struct *tty, char ch)
*/
static void rs_throttle(struct tty_struct * tty)
{
if (I_IXOFF(tty)) rs_send_xchar(tty, STOP_CHAR(tty));
if (I_IXOFF(tty))
rs_send_xchar(tty, STOP_CHAR(tty));
printk(KERN_INFO "simrs_throttle called\n");
}
static void rs_unthrottle(struct tty_struct * tty)
{
struct async_struct *info = (struct async_struct *)tty->driver_data;
struct serial_state *info = tty->driver_data;
if (I_IXOFF(tty)) {
if (info->x_char)
@ -389,7 +305,6 @@ static void rs_unthrottle(struct tty_struct * tty)
printk(KERN_INFO "simrs_unthrottle called\n");
}
static int rs_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
{
if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
@ -400,48 +315,21 @@ static int rs_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
}
switch (cmd) {
case TIOCGSERIAL:
printk(KERN_INFO "simrs_ioctl TIOCGSERIAL called\n");
return 0;
case TIOCSSERIAL:
printk(KERN_INFO "simrs_ioctl TIOCSSERIAL called\n");
return 0;
case TIOCSERCONFIG:
printk(KERN_INFO "rs_ioctl: TIOCSERCONFIG called\n");
return -EINVAL;
case TIOCSERGETLSR: /* Get line status register */
printk(KERN_INFO "rs_ioctl: TIOCSERGETLSR called\n");
return -EINVAL;
case TIOCSERGSTRUCT:
printk(KERN_INFO "rs_ioctl: TIOCSERGSTRUCT called\n");
#if 0
if (copy_to_user((struct async_struct *) arg,
info, sizeof(struct async_struct)))
return -EFAULT;
#endif
return 0;
/*
* Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
* - mask passed in arg for lines of interest
* (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
* Caller should use TIOCGICOUNT to see which one it was
*/
case TIOCMIWAIT:
printk(KERN_INFO "rs_ioctl: TIOCMIWAIT: called\n");
return 0;
case TIOCSERGWILD:
case TIOCSERSWILD:
/* "setserial -W" is called in Debian boot */
printk (KERN_INFO "TIOCSER?WILD ioctl obsolete, ignored.\n");
return 0;
default:
return -ENOIOCTLCMD;
}
return 0;
case TIOCGSERIAL:
case TIOCSSERIAL:
case TIOCSERGSTRUCT:
case TIOCMIWAIT:
return 0;
case TIOCSERCONFIG:
case TIOCSERGETLSR: /* Get line status register */
return -EINVAL;
case TIOCSERGWILD:
case TIOCSERSWILD:
/* "setserial -W" is called in Debian boot */
printk (KERN_INFO "TIOCSER?WILD ioctl obsolete, ignored.\n");
return 0;
}
return -ENOIOCTLCMD;
}
#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
@ -452,220 +340,50 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
if ((old_termios->c_cflag & CRTSCTS) &&
!(tty->termios->c_cflag & CRTSCTS)) {
tty->hw_stopped = 0;
rs_start(tty);
}
}
/*
* 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 shutdown(struct async_struct * info)
static void shutdown(struct tty_port *port)
{
unsigned long flags;
struct serial_state *state;
int retval;
if (!(info->flags & ASYNC_INITIALIZED)) return;
state = info->state;
#ifdef SIMSERIAL_DEBUG
printk("Shutting down serial port %d (irq %d)....", info->line,
state->irq);
#endif
struct serial_state *info = container_of(port, struct serial_state,
port);
unsigned long flags;
local_irq_save(flags);
{
/*
* First unlink the serial port from the IRQ chain...
*/
if (info->next_port)
info->next_port->prev_port = info->prev_port;
if (info->prev_port)
info->prev_port->next_port = info->next_port;
else
IRQ_ports[state->irq] = info->next_port;
if (info->irq)
free_irq(info->irq, info);
/*
* Free the IRQ, if necessary
*/
if (state->irq && (!IRQ_ports[state->irq] ||
!IRQ_ports[state->irq]->next_port)) {
if (IRQ_ports[state->irq]) {
free_irq(state->irq, NULL);
retval = request_irq(state->irq, rs_interrupt_single,
IRQ_T(info), "serial", NULL);
if (retval)
printk(KERN_ERR "serial shutdown: request_irq: error %d"
" Couldn't reacquire IRQ.\n", retval);
} else
free_irq(state->irq, NULL);
}
if (info->xmit.buf) {
free_page((unsigned long) info->xmit.buf);
info->xmit.buf = NULL;
}
if (info->tty) set_bit(TTY_IO_ERROR, &info->tty->flags);
info->flags &= ~ASYNC_INITIALIZED;
if (info->xmit.buf) {
free_page((unsigned long) info->xmit.buf);
info->xmit.buf = NULL;
}
local_irq_restore(flags);
}
/*
* ------------------------------------------------------------
* rs_close()
*
* This routine is called when the serial port gets closed. First, we
* wait for the last remaining data to be sent. Then, we unlink its
* async structure from the interrupt chain if necessary, and we free
* that IRQ if nothing is left in the chain.
* ------------------------------------------------------------
*/
static void rs_close(struct tty_struct *tty, struct file * filp)
{
struct async_struct * info = (struct async_struct *)tty->driver_data;
struct serial_state *state;
unsigned long flags;
struct serial_state *info = tty->driver_data;
if (!info ) return;
state = info->state;
local_irq_save(flags);
if (tty_hung_up_p(filp)) {
#ifdef SIMSERIAL_DEBUG
printk("rs_close: hung_up\n");
#endif
local_irq_restore(flags);
return;
}
#ifdef SIMSERIAL_DEBUG
printk("rs_close ttys%d, count = %d\n", info->line, state->count);
#endif
if ((tty->count == 1) && (state->count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
* structure will be freed. state->count should always
* be one in these conditions. If it's greater than
* one, we've got real problems, since it means the
* serial port won't be shutdown.
*/
printk(KERN_ERR "rs_close: bad serial port count; tty->count is 1, "
"state->count is %d\n", state->count);
state->count = 1;
}
if (--state->count < 0) {
printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n",
info->line, state->count);
state->count = 0;
}
if (state->count) {
local_irq_restore(flags);
return;
}
info->flags |= ASYNC_CLOSING;
local_irq_restore(flags);
/*
* Now we wait for the transmit buffer to clear; and we notify
* the line discipline to only process XON/XOFF characters.
*/
shutdown(info);
rs_flush_buffer(tty);
tty_ldisc_flush(tty);
info->event = 0;
info->tty = NULL;
if (info->blocked_open) {
if (info->close_delay)
schedule_timeout_interruptible(info->close_delay);
wake_up_interruptible(&info->open_wait);
}
info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
wake_up_interruptible(&info->close_wait);
tty_port_close(&info->port, tty, filp);
}
/*
* rs_wait_until_sent() --- wait until the transmitter is empty
*/
static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
{
}
/*
* rs_hangup() --- called by tty_hangup() when a hangup is signaled.
*/
static void rs_hangup(struct tty_struct *tty)
{
struct async_struct * info = (struct async_struct *)tty->driver_data;
struct serial_state *state = info->state;
#ifdef SIMSERIAL_DEBUG
printk("rs_hangup: called\n");
#endif
state = info->state;
struct serial_state *info = tty->driver_data;
rs_flush_buffer(tty);
if (info->flags & ASYNC_CLOSING)
return;
shutdown(info);
info->event = 0;
state->count = 0;
info->flags &= ~ASYNC_NORMAL_ACTIVE;
info->tty = NULL;
wake_up_interruptible(&info->open_wait);
tty_port_hangup(&info->port);
}
static int get_async_struct(int line, struct async_struct **ret_info)
static int activate(struct tty_port *port, struct tty_struct *tty)
{
struct async_struct *info;
struct serial_state *sstate;
sstate = rs_table + line;
sstate->count++;
if (sstate->info) {
*ret_info = sstate->info;
return 0;
}
info = kzalloc(sizeof(struct async_struct), GFP_KERNEL);
if (!info) {
sstate->count--;
return -ENOMEM;
}
init_waitqueue_head(&info->open_wait);
init_waitqueue_head(&info->close_wait);
init_waitqueue_head(&info->delta_msr_wait);
info->magic = SERIAL_MAGIC;
info->port = sstate->port;
info->flags = sstate->flags;
info->xmit_fifo_size = sstate->xmit_fifo_size;
info->line = line;
INIT_WORK(&info->work, do_softint);
info->state = sstate;
if (sstate->info) {
kfree(info);
*ret_info = sstate->info;
return 0;
}
*ret_info = sstate->info = info;
return 0;
}
static int
startup(struct async_struct *info)
{
unsigned long flags;
int retval=0;
irq_handler_t handler;
struct serial_state *state= info->state;
unsigned long page;
struct serial_state *state = container_of(port, struct serial_state,
port);
unsigned long flags, page;
int retval = 0;
page = get_zeroed_page(GFP_KERNEL);
if (!page)
@ -673,86 +391,31 @@ startup(struct async_struct *info)
local_irq_save(flags);
if (info->flags & ASYNC_INITIALIZED) {
free_page(page);
goto errout;
}
if (!state->port || !state->type) {
if (info->tty) set_bit(TTY_IO_ERROR, &info->tty->flags);
free_page(page);
goto errout;
}
if (info->xmit.buf)
if (state->xmit.buf)
free_page(page);
else
info->xmit.buf = (unsigned char *) page;
state->xmit.buf = (unsigned char *) page;
#ifdef SIMSERIAL_DEBUG
printk("startup: ttys%d (irq %d)...", info->line, state->irq);
#endif
/*
* Allocate the IRQ if necessary
*/
if (state->irq && (!IRQ_ports[state->irq] ||
!IRQ_ports[state->irq]->next_port)) {
if (IRQ_ports[state->irq]) {
retval = -EBUSY;
if (state->irq) {
retval = request_irq(state->irq, rs_interrupt_single, 0,
"simserial", state);
if (retval)
goto errout;
} else
handler = rs_interrupt_single;
retval = request_irq(state->irq, handler, IRQ_T(info), "simserial", NULL);
if (retval) {
if (capable(CAP_SYS_ADMIN)) {
if (info->tty)
set_bit(TTY_IO_ERROR,
&info->tty->flags);
retval = 0;
}
goto errout;
}
}
/*
* Insert serial port into IRQ chain.
*/
info->prev_port = NULL;
info->next_port = IRQ_ports[state->irq];
if (info->next_port)
info->next_port->prev_port = info;
IRQ_ports[state->irq] = info;
if (info->tty) clear_bit(TTY_IO_ERROR, &info->tty->flags);
info->xmit.head = info->xmit.tail = 0;
#if 0
/*
* Set up serial timers...
*/
timer_table[RS_TIMER].expires = jiffies + 2*HZ/100;
timer_active |= 1 << RS_TIMER;
#endif
state->xmit.head = state->xmit.tail = 0;
/*
* Set up the tty->alt_speed kludge
*/
if (info->tty) {
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
info->tty->alt_speed = 57600;
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
info->tty->alt_speed = 115200;
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
info->tty->alt_speed = 230400;
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
info->tty->alt_speed = 460800;
}
info->flags |= ASYNC_INITIALIZED;
local_irq_restore(flags);
return 0;
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
tty->alt_speed = 57600;
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
tty->alt_speed = 115200;
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
tty->alt_speed = 230400;
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
tty->alt_speed = 460800;
errout:
local_irq_restore(flags);
@ -768,56 +431,11 @@ errout:
*/
static int rs_open(struct tty_struct *tty, struct file * filp)
{
struct async_struct *info;
int retval, line;
unsigned long page;
struct serial_state *info = rs_table + tty->index;
struct tty_port *port = &info->port;
line = tty->index;
if ((line < 0) || (line >= NR_PORTS))
return -ENODEV;
retval = get_async_struct(line, &info);
if (retval)
return retval;
tty->driver_data = info;
info->tty = tty;
#ifdef SIMSERIAL_DEBUG
printk("rs_open %s, count = %d\n", tty->name, info->state->count);
#endif
info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
if (!tmp_buf) {
page = get_zeroed_page(GFP_KERNEL);
if (!page)
return -ENOMEM;
if (tmp_buf)
free_page(page);
else
tmp_buf = (unsigned char *) page;
}
/*
* If the port is the middle of closing, bail out now
*/
if (tty_hung_up_p(filp) ||
(info->flags & ASYNC_CLOSING)) {
if (info->flags & ASYNC_CLOSING)
interruptible_sleep_on(&info->close_wait);
#ifdef SERIAL_DO_RESTART
return ((info->flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
#else
return -EAGAIN;
#endif
}
/*
* Start up serial port
*/
retval = startup(info);
if (retval) {
return retval;
}
tty->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
/*
* figure out which console to use (should be one already)
@ -828,30 +446,21 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
console = console->next;
}
#ifdef SIMSERIAL_DEBUG
printk("rs_open ttys%d successful\n", info->line);
#endif
return 0;
return tty_port_open(port, tty, filp);
}
/*
* /proc fs routines....
*/
static inline void line_info(struct seq_file *m, struct serial_state *state)
{
seq_printf(m, "%d: uart:%s port:%lX irq:%d\n",
state->line, uart_config[state->type].name,
state->port, state->irq);
}
static int rs_proc_show(struct seq_file *m, void *v)
{
int i;
seq_printf(m, "simserinfo:1.0 driver:%s\n", serial_version);
seq_printf(m, "simserinfo:1.0\n");
for (i = 0; i < NR_PORTS; i++)
line_info(m, &rs_table[i]);
seq_printf(m, "%d: uart:16550 port:3F8 irq:%d\n",
i, rs_table[i].irq);
return 0;
}
@ -868,25 +477,6 @@ static const struct file_operations rs_proc_fops = {
.release = single_release,
};
/*
* ---------------------------------------------------------------------
* rs_init() and friends
*
* rs_init() is called at boot-time to initialize the serial driver.
* ---------------------------------------------------------------------
*/
/*
* This routine prints out the appropriate serial driver version
* number, and identifies which options were configured into this
* driver.
*/
static inline void show_serial_version(void)
{
printk(KERN_INFO "%s version %s with", serial_name, serial_version);
printk(KERN_INFO " no serial options enabled\n");
}
static const struct tty_operations hp_ops = {
.open = rs_open,
.close = rs_close,
@ -901,34 +491,31 @@ static const struct tty_operations hp_ops = {
.unthrottle = rs_unthrottle,
.send_xchar = rs_send_xchar,
.set_termios = rs_set_termios,
.stop = rs_stop,
.start = rs_start,
.hangup = rs_hangup,
.wait_until_sent = rs_wait_until_sent,
.proc_fops = &rs_proc_fops,
};
/*
* The serial driver boot-time initialization code!
*/
static int __init
simrs_init (void)
static const struct tty_port_operations hp_port_ops = {
.activate = activate,
.shutdown = shutdown,
};
static int __init simrs_init(void)
{
int i, rc;
struct serial_state *state;
struct serial_state *state;
int retval;
if (!ia64_platform_is("hpsim"))
return -ENODEV;
hp_simserial_driver = alloc_tty_driver(1);
hp_simserial_driver = alloc_tty_driver(NR_PORTS);
if (!hp_simserial_driver)
return -ENOMEM;
show_serial_version();
printk(KERN_INFO "SimSerial driver with no serial options enabled\n");
/* Initialize the tty_driver structure */
hp_simserial_driver->owner = THIS_MODULE;
hp_simserial_driver->driver_name = "simserial";
hp_simserial_driver->name = "ttyS";
hp_simserial_driver->major = TTY_MAJOR;
@ -941,31 +528,33 @@ simrs_init (void)
hp_simserial_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(hp_simserial_driver, &hp_ops);
/*
* Let's have a little bit of fun !
*/
for (i = 0, state = rs_table; i < NR_PORTS; i++,state++) {
state = rs_table;
tty_port_init(&state->port);
state->port.ops = &hp_port_ops;
state->port.close_delay = 0; /* XXX really 0? */
if (state->type == PORT_UNKNOWN) continue;
if (!state->irq) {
if ((rc = assign_irq_vector(AUTO_ASSIGN)) < 0)
panic("%s: out of interrupt vectors!\n",
__func__);
state->irq = rc;
ia64_ssc_connect_irq(KEYBOARD_INTR, state->irq);
}
printk(KERN_INFO "ttyS%d at 0x%04lx (irq = %d) is a %s\n",
state->line,
state->port, state->irq,
uart_config[state->type].name);
retval = hpsim_get_irq(KEYBOARD_INTR);
if (retval < 0) {
printk(KERN_ERR "%s: out of interrupt vectors!\n",
__func__);
goto err_free_tty;
}
if (tty_register_driver(hp_simserial_driver))
panic("Couldn't register simserial driver\n");
state->irq = retval;
/* the port is imaginary */
printk(KERN_INFO "ttyS0 at 0x03f8 (irq = %d) is a 16550\n", state->irq);
retval = tty_register_driver(hp_simserial_driver);
if (retval) {
printk(KERN_ERR "Couldn't register simserial driver\n");
goto err_free_tty;
}
return 0;
err_free_tty:
put_tty_driver(hp_simserial_driver);
return retval;
}
#ifndef MODULE

2
arch/ia64/include/asm/hpsim.h
View File

@ -10,7 +10,7 @@ int simcons_register(void);
struct tty_driver;
extern struct tty_driver *hp_simserial_driver;
void ia64_ssc_connect_irq(long intr, long irq);
extern int hpsim_get_irq(int intr);
void ia64_ctl_trace(long on);
#endif

1
arch/m68k/emu/nfcon.c
View File

@ -127,7 +127,6 @@ static int __init nfcon_init(void)
if (!nfcon_tty_driver)
return -ENOMEM;
nfcon_tty_driver->owner = THIS_MODULE;
nfcon_tty_driver->driver_name = "nfcon";
nfcon_tty_driver->name = "nfcon";
nfcon_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM;

57
arch/parisc/kernel/pdc_cons.c
View File

@ -90,11 +90,13 @@ static int pdc_console_setup(struct console *co, char *options)
#define PDC_CONS_POLL_DELAY (30 * HZ / 1000)
static struct timer_list pdc_console_timer;
static void pdc_console_poll(unsigned long unused);
static DEFINE_TIMER(pdc_console_timer, pdc_console_poll, 0, 0);
static struct tty_port tty_port;
static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
{
tty_port_tty_set(&tty_port, tty);
mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
return 0;
@ -102,8 +104,10 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp)
{
if (!tty->count)
del_timer(&pdc_console_timer);
if (!tty->count) {
del_timer_sync(&pdc_console_timer);
tty_port_tty_set(&tty_port, NULL);
}
}
static int pdc_console_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
@ -122,8 +126,6 @@ static int pdc_console_tty_chars_in_buffer(struct tty_struct *tty)
return 0; /* no buffer */
}
static struct tty_driver *pdc_console_tty_driver;
static const struct tty_operations pdc_console_tty_ops = {
.open = pdc_console_tty_open,
.close = pdc_console_tty_close,
@ -134,10 +136,8 @@ static const struct tty_operations pdc_console_tty_ops = {
static void pdc_console_poll(unsigned long unused)
{
int data, count = 0;
struct tty_struct *tty = pdc_console_tty_driver->ttys[0];
struct tty_struct *tty = tty_port_tty_get(&tty_port);
if (!tty)
return;
@ -153,15 +153,17 @@ static void pdc_console_poll(unsigned long unused)
if (count)
tty_flip_buffer_push(tty);
if (tty->count && (pdc_cons.flags & CON_ENABLED))
tty_kref_put(tty);
if (pdc_cons.flags & CON_ENABLED)
mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
}
static struct tty_driver *pdc_console_tty_driver;
static int __init pdc_console_tty_driver_init(void)
{
int err;
struct tty_driver *drv;
/* Check if the console driver is still registered.
* It is unregistered if the pdc console was not selected as the
@ -183,32 +185,29 @@ static int __init pdc_console_tty_driver_init(void)
printk(KERN_INFO "The PDC console driver is still registered, removing CON_BOOT flag\n");
pdc_cons.flags &= ~CON_BOOT;
drv = alloc_tty_driver(1);
tty_port_init(&tty_port);
if (!drv)
pdc_console_tty_driver = alloc_tty_driver(1);
if (!pdc_console_tty_driver)
return -ENOMEM;
drv->driver_name = "pdc_cons";
drv->name = "ttyB";
drv->major = MUX_MAJOR;
drv->minor_start = 0;
drv->type = TTY_DRIVER_TYPE_SYSTEM;
drv->init_termios = tty_std_termios;
drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS;
tty_set_operations(drv, &pdc_console_tty_ops);
pdc_console_tty_driver->driver_name = "pdc_cons";
pdc_console_tty_driver->name = "ttyB";
pdc_console_tty_driver->major = MUX_MAJOR;
pdc_console_tty_driver->minor_start = 0;
pdc_console_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM;
pdc_console_tty_driver->init_termios = tty_std_termios;
pdc_console_tty_driver->flags = TTY_DRIVER_REAL_RAW |
TTY_DRIVER_RESET_TERMIOS;
tty_set_operations(pdc_console_tty_driver, &pdc_console_tty_ops);
err = tty_register_driver(drv);
err = tty_register_driver(pdc_console_tty_driver);
if (err) {
printk(KERN_ERR "Unable to register the PDC console TTY driver\n");
return err;
}
pdc_console_tty_driver = drv;
/* No need to initialize the pdc_console_timer if tty isn't allocated */
init_timer(&pdc_console_timer);
pdc_console_timer.function = pdc_console_poll;
return 0;
}

22
arch/xtensa/platforms/iss/console.c
View File

@ -19,7 +19,6 @@
#include <linux/param.h>
#include <linux/seq_file.h>
#include <linux/serial.h>
#include <linux/serialP.h>
#include <asm/uaccess.h>
#include <asm/irq.h>
@ -37,6 +36,7 @@
#define SERIAL_TIMER_VALUE (20 * HZ)
static struct tty_driver *serial_driver;
static struct tty_port serial_port;
static struct timer_list serial_timer;
static DEFINE_SPINLOCK(timer_lock);
@ -68,17 +68,10 @@ static void rs_poll(unsigned long);
static int rs_open(struct tty_struct *tty, struct file * filp)
{
int line = tty->index;
if ((line < 0) || (line >= SERIAL_MAX_NUM_LINES))
return -ENODEV;
tty->port = &serial_port;
spin_lock(&timer_lock);
if (tty->count == 1) {
init_timer(&serial_timer);
serial_timer.data = (unsigned long) tty;
serial_timer.function = rs_poll;
setup_timer(&serial_timer, rs_poll, (unsigned long)tty);
mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
}
spin_unlock(&timer_lock);
@ -99,10 +92,10 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
*/
static void rs_close(struct tty_struct *tty, struct file * filp)
{
spin_lock(&timer_lock);
spin_lock_bh(&timer_lock);
if (tty->count == 1)
del_timer_sync(&serial_timer);
spin_unlock(&timer_lock);
spin_unlock_bh(&timer_lock);
}
@ -210,13 +203,14 @@ static const struct tty_operations serial_ops = {
int __init rs_init(void)
{
serial_driver = alloc_tty_driver(1);
tty_port_init(&serial_port);
serial_driver = alloc_tty_driver(SERIAL_MAX_NUM_LINES);
printk ("%s %s\n", serial_name, serial_version);
/* Initialize the tty_driver structure */
serial_driver->owner = THIS_MODULE;
serial_driver->driver_name = "iss_serial";
serial_driver->name = "ttyS";
serial_driver->major = TTY_MAJOR;

9
drivers/accessibility/braille/braille_console.c
View File

@ -244,16 +244,13 @@ static int keyboard_notifier_call(struct notifier_block *blk,
switch (val) {
case KVAL(K_CAPS):
on_off = vc_kbd_led(kbd_table + fg_console,
VC_CAPSLOCK);
on_off = vt_get_leds(fg_console, VC_CAPSLOCK);
break;
case KVAL(K_NUM):
on_off = vc_kbd_led(kbd_table + fg_console,
VC_NUMLOCK);
on_off = vt_get_leds(fg_console, VC_NUMLOCK);
break;
case KVAL(K_HOLD):
on_off = vc_kbd_led(kbd_table + fg_console,
VC_SCROLLOCK);
on_off = vt_get_leds(fg_console, VC_SCROLLOCK);
break;
}
if (on_off == 1)

15
drivers/char/Kconfig
View File

@ -66,21 +66,6 @@ config TTY_PRINTK
If unsure, say N.
config BRIQ_PANEL
tristate 'Total Impact briQ front panel driver'
depends on PPC_CHRP
---help---
The briQ is a small footprint CHRP computer with a frontpanel VFD, a
tristate led and two switches. It is the size of a CDROM drive.
If you have such one and want anything showing on the VFD then you
must answer Y here.
To compile this driver as a module, choose M here: the
module will be called briq_panel.
It's safe to say N here.
config BFIN_OTP
tristate "Blackfin On-Chip OTP Memory Support"
depends on BLACKFIN && (BF51x || BF52x || BF54x)

1
drivers/char/Makefile
View File

@ -16,7 +16,6 @@ obj-$(CONFIG_UV_MMTIMER) += uv_mmtimer.o
obj-$(CONFIG_VIOTAPE) += viotape.o
obj-$(CONFIG_IBM_BSR) += bsr.o
obj-$(CONFIG_SGI_MBCS) += mbcs.o
obj-$(CONFIG_BRIQ_PANEL) += briq_panel.o
obj-$(CONFIG_BFIN_OTP) += bfin-otp.o
obj-$(CONFIG_PRINTER) += lp.o

266
drivers/char/briq_panel.c
View File

@ -1,266 +0,0 @@
/*
* Drivers for the Total Impact PPC based computer "BRIQ"
* by Dr. Karsten Jeppesen
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/tty.h>
#include <linux/timer.h>
#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/string.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/miscdevice.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/prom.h>
#define BRIQ_PANEL_MINOR 156
#define BRIQ_PANEL_VFD_IOPORT 0x0390
#define BRIQ_PANEL_LED_IOPORT 0x0398
#define BRIQ_PANEL_VER "1.1 (04/20/2002)"
#define BRIQ_PANEL_MSG0 "Loading Linux"
static int vfd_is_open;
static unsigned char vfd[40];
static int vfd_cursor;
static unsigned char ledpb, led;
static void update_vfd(void)
{
int i;
/* cursor home */
outb(0x02, BRIQ_PANEL_VFD_IOPORT);
for (i=0; i<20; i++)
outb(vfd[i], BRIQ_PANEL_VFD_IOPORT + 1);
/* cursor to next line */
outb(0xc0, BRIQ_PANEL_VFD_IOPORT);
for (i=20; i<40; i++)
outb(vfd[i], BRIQ_PANEL_VFD_IOPORT + 1);
}
static void set_led(char state)
{
if (state == 'R')
led = 0x01;
else if (state == 'G')
led = 0x02;
else if (state == 'Y')
led = 0x03;
else if (state == 'X')
led = 0x00;
outb(led, BRIQ_PANEL_LED_IOPORT);
}
static int briq_panel_open(struct inode *ino, struct file *filep)
{
tty_lock();
/* enforce single access, vfd_is_open is protected by BKL */
if (vfd_is_open) {
tty_unlock();
return -EBUSY;
}
vfd_is_open = 1;
tty_unlock();
return 0;
}
static int briq_panel_release(struct inode *ino, struct file *filep)
{
if (!vfd_is_open)
return -ENODEV;
vfd_is_open = 0;
return 0;
}
static ssize_t briq_panel_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
{
unsigned short c;
unsigned char cp;
if (!vfd_is_open)
return -ENODEV;
c = (inb(BRIQ_PANEL_LED_IOPORT) & 0x000c) | (ledpb & 0x0003);
set_led(' ');
/* upper button released */
if ((!(ledpb & 0x0004)) && (c & 0x0004)) {
cp = ' ';
ledpb = c;
if (copy_to_user(buf, &cp, 1))
return -EFAULT;
return 1;
}
/* lower button released */
else if ((!(ledpb & 0x0008)) && (c & 0x0008)) {
cp = '\r';
ledpb = c;
if (copy_to_user(buf, &cp, 1))
return -EFAULT;
return 1;
} else {
ledpb = c;
return 0;
}
}
static void scroll_vfd( void )
{
int i;
for (i=0; i<20; i++) {
vfd[i] = vfd[i+20];
vfd[i+20] = ' ';
}
vfd_cursor = 20;
}
static ssize_t briq_panel_write(struct file *file, const char __user *buf, size_t len,
loff_t *ppos)
{
size_t indx = len;
int i, esc = 0;
if (!vfd_is_open)
return -EBUSY;
for (;;) {
char c;
if (!indx)
break;
if (get_user(c, buf))
return -EFAULT;
if (esc) {
set_led(c);
esc = 0;
} else if (c == 27) {
esc = 1;
} else if (c == 12) {
/* do a form feed */
for (i=0; i<40; i++)
vfd[i] = ' ';
vfd_cursor = 0;
} else if (c == 10) {
if (vfd_cursor < 20)
vfd_cursor = 20;
else if (vfd_cursor < 40)
vfd_cursor = 40;
else if (vfd_cursor < 60)
vfd_cursor = 60;
if (vfd_cursor > 59)
scroll_vfd();
} else {
/* just a character */
if (vfd_cursor > 39)
scroll_vfd();
vfd[vfd_cursor++] = c;
}
indx--;
buf++;
}
update_vfd();
return len;
}
static const struct file_operations briq_panel_fops = {
.owner = THIS_MODULE,
.read = briq_panel_read,
.write = briq_panel_write,
.open = briq_panel_open,
.release = briq_panel_release,
.llseek = noop_llseek,
};
static struct miscdevice briq_panel_miscdev = {
BRIQ_PANEL_MINOR,
"briq_panel",
&briq_panel_fops
};
static int __init briq_panel_init(void)
{
struct device_node *root = of_find_node_by_path("/");
const char *machine;
int i;
machine = of_get_property(root, "model", NULL);
if (!machine || strncmp(machine, "TotalImpact,BRIQ-1", 18) != 0) {
of_node_put(root);
return -ENODEV;
}
of_node_put(root);
printk(KERN_INFO
"briq_panel: v%s Dr. Karsten Jeppesen (kj@totalimpact.com)\n",
BRIQ_PANEL_VER);
if (!request_region(BRIQ_PANEL_VFD_IOPORT, 4, "BRIQ Front Panel"))
return -EBUSY;
if (!request_region(BRIQ_PANEL_LED_IOPORT, 2, "BRIQ Front Panel")) {
release_region(BRIQ_PANEL_VFD_IOPORT, 4);
return -EBUSY;
}
ledpb = inb(BRIQ_PANEL_LED_IOPORT) & 0x000c;
if (misc_register(&briq_panel_miscdev) < 0) {
release_region(BRIQ_PANEL_VFD_IOPORT, 4);
release_region(BRIQ_PANEL_LED_IOPORT, 2);
return -EBUSY;
}
outb(0x38, BRIQ_PANEL_VFD_IOPORT); /* Function set */
outb(0x01, BRIQ_PANEL_VFD_IOPORT); /* Clear display */
outb(0x0c, BRIQ_PANEL_VFD_IOPORT); /* Display on */
outb(0x06, BRIQ_PANEL_VFD_IOPORT); /* Entry normal */
for (i=0; i<40; i++)
vfd[i]=' ';
#ifndef MODULE
vfd[0] = 'L';
vfd[1] = 'o';
vfd[2] = 'a';
vfd[3] = 'd';
vfd[4] = 'i';
vfd[5] = 'n';
vfd[6] = 'g';
vfd[7] = ' ';
vfd[8] = '.';
vfd[9] = '.';
vfd[10] = '.';
#endif /* !MODULE */
update_vfd();
return 0;
}
static void __exit briq_panel_exit(void)
{
misc_deregister(&briq_panel_miscdev);
release_region(BRIQ_PANEL_VFD_IOPORT, 4);
release_region(BRIQ_PANEL_LED_IOPORT, 2);
}
module_init(briq_panel_init);
module_exit(briq_panel_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Karsten Jeppesen <karsten@jeppesens.com>");
MODULE_DESCRIPTION("Driver for the Total Impact briQ front panel");

3
drivers/char/pcmcia/synclink_cs.c
View File

@ -2484,7 +2484,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
/* verify range of specified line number */
line = tty->index;
if ((line < 0) || (line >= mgslpc_device_count)) {
if (line >= mgslpc_device_count) {
printk("%s(%d):mgslpc_open with invalid line #%d.\n",
__FILE__,__LINE__,line);
return -ENODEV;
@ -2836,7 +2836,6 @@ static int __init synclink_cs_init(void)
/* Initialize the tty_driver structure */
serial_driver->owner = THIS_MODULE;
serial_driver->driver_name = "synclink_cs";
serial_driver->name = "ttySLP";
serial_driver->major = ttymajor;

2
drivers/char/ttyprintk.c
View File

@ -184,12 +184,10 @@ static int __init ttyprintk_init(void)
if (!ttyprintk_driver)
return ret;
ttyprintk_driver->owner = THIS_MODULE;
ttyprintk_driver->driver_name = "ttyprintk";
ttyprintk_driver->name = "ttyprintk";
ttyprintk_driver->major = TTYAUX_MAJOR;
ttyprintk_driver->minor_start = 3;
ttyprintk_driver->num = 1;
ttyprintk_driver->type = TTY_DRIVER_TYPE_CONSOLE;
ttyprintk_driver->init_termios = tty_std_termios;
ttyprintk_driver->init_termios.c_oflag = OPOST | OCRNL | ONOCR | ONLRET;

13
drivers/isdn/capi/capi.c
View File

@ -1013,16 +1013,12 @@ static const struct file_operations capi_fops =
static int
capinc_tty_install(struct tty_driver *driver, struct tty_struct *tty)
{
int idx = tty->index;
struct capiminor *mp = capiminor_get(idx);
int ret = tty_init_termios(tty);
struct capiminor *mp = capiminor_get(tty->index);
int ret = tty_standard_install(driver, tty);
if (ret == 0) {
tty_driver_kref_get(driver);
tty->count++;
if (ret == 0)
tty->driver_data = mp;
driver->ttys[idx] = tty;
} else
else
capiminor_put(mp);
return ret;
}
@ -1290,7 +1286,6 @@ static int __init capinc_tty_init(void)
kfree(capiminors);
return -ENOMEM;
}
drv->owner = THIS_MODULE;
drv->driver_name = "capi_nc";
drv->name = "capi";
drv->major = 0;

5
drivers/isdn/gigaset/common.c
View File

@ -720,12 +720,11 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
tasklet_init(&cs->event_tasklet, gigaset_handle_event,
(unsigned long) cs);
tty_port_init(&cs->port);
cs->commands_pending = 0;
cs->cur_at_seq = 0;
cs->gotfwver = -1;
cs->open_count = 0;
cs->dev = NULL;
cs->tty = NULL;
cs->tty_dev = NULL;
cs->cidmode = cidmode != 0;
cs->tabnocid = gigaset_tab_nocid;
@ -1051,8 +1050,6 @@ static struct cardstate *gigaset_get_cs_by_minor(unsigned minor)
struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty)
{
if (tty->index < 0 || tty->index >= tty->driver->num)
return NULL;
return gigaset_get_cs_by_minor(tty->index + tty->driver->minor_start);
}

3
drivers/isdn/gigaset/gigaset.h
View File

@ -433,8 +433,7 @@ struct cardstate {
spinlock_t cmdlock;
unsigned curlen, cmdbytes;
unsigned open_count;
struct tty_struct *tty;
struct tty_port port;
struct tasklet_struct if_wake_tasklet;
unsigned control_state;

158
drivers/isdn/gigaset/interface.c
View File

@ -146,13 +146,10 @@ static const struct tty_operations if_ops = {
static int if_open(struct tty_struct *tty, struct file *filp)
{
struct cardstate *cs;
unsigned long flags;
gig_dbg(DEBUG_IF, "%d+%d: %s()",
tty->driver->minor_start, tty->index, __func__);
tty->driver_data = NULL;
cs = gigaset_get_cs_by_tty(tty);
if (!cs || !try_module_get(cs->driver->owner))
return -ENODEV;
@ -163,12 +160,10 @@ static int if_open(struct tty_struct *tty, struct file *filp)
}
tty->driver_data = cs;
++cs->open_count;
++cs->port.count;
if (cs->open_count == 1) {
spin_lock_irqsave(&cs->lock, flags);
cs->tty = tty;
spin_unlock_irqrestore(&cs->lock, flags);
if (cs->port.count == 1) {
tty_port_tty_set(&cs->port, tty);
tty->low_latency = 1;
}
@ -178,12 +173,10 @@ static int if_open(struct tty_struct *tty, struct file *filp)
static void if_close(struct tty_struct *tty, struct file *filp)
{
struct cardstate *cs;
unsigned long flags;
struct cardstate *cs = tty->driver_data;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
if (!cs) { /* happens if we didn't find cs in open */
printk(KERN_DEBUG "%s: no cardstate\n", __func__);
return;
}
@ -193,15 +186,10 @@ static void if_close(struct tty_struct *tty, struct file *filp)
if (!cs->connected)
gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
else if (!cs->open_count)
else if (!cs->port.count)
dev_warn(cs->dev, "%s: device not opened\n", __func__);
else {
if (!--cs->open_count) {
spin_lock_irqsave(&cs->lock, flags);
cs->tty = NULL;
spin_unlock_irqrestore(&cs->lock, flags);
}
}
else if (!--cs->port.count)
tty_port_tty_set(&cs->port, NULL);
mutex_unlock(&cs->mutex);
@ -211,18 +199,12 @@ static void if_close(struct tty_struct *tty, struct file *filp)
static int if_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
struct cardstate *cs;
struct cardstate *cs = tty->driver_data;
int retval = -ENODEV;
int int_arg;
unsigned char buf[6];
unsigned version[4];
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return -ENODEV;
}
gig_dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __func__, cmd);
if (mutex_lock_interruptible(&cs->mutex))
@ -231,9 +213,7 @@ static int if_ioctl(struct tty_struct *tty,
if (!cs->connected) {
gig_dbg(DEBUG_IF, "not connected");
retval = -ENODEV;
} else if (!cs->open_count)
dev_warn(cs->dev, "%s: device not opened\n", __func__);
else {
} else {
retval = 0;
switch (cmd) {
case GIGASET_REDIR:
@ -285,15 +265,9 @@ static int if_ioctl(struct tty_struct *tty,
static int if_tiocmget(struct tty_struct *tty)
{
struct cardstate *cs;
struct cardstate *cs = tty->driver_data;
int retval;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return -ENODEV;
}
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
if (mutex_lock_interruptible(&cs->mutex))
@ -309,16 +283,10 @@ static int if_tiocmget(struct tty_struct *tty)
static int if_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
struct cardstate *cs;
struct cardstate *cs = tty->driver_data;
int retval;
unsigned mc;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return -ENODEV;
}
gig_dbg(DEBUG_IF, "%u: %s(0x%x, 0x%x)",
cs->minor_index, __func__, set, clear);
@ -341,16 +309,10 @@ static int if_tiocmset(struct tty_struct *tty,
static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
struct cardstate *cs;
struct cardstate *cs = tty->driver_data;
struct cmdbuf_t *cb;
int retval;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return -ENODEV;
}
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
if (mutex_lock_interruptible(&cs->mutex))
@ -361,11 +323,6 @@ static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
retval = -ENODEV;
goto done;
}
if (!cs->open_count) {
dev_warn(cs->dev, "%s: device not opened\n", __func__);
retval = -ENODEV;
goto done;
}
if (cs->mstate != MS_LOCKED) {
dev_warn(cs->dev, "can't write to unlocked device\n");
retval = -EBUSY;
@ -397,15 +354,9 @@ done:
static int if_write_room(struct tty_struct *tty)
{
struct cardstate *cs;
struct cardstate *cs = tty->driver_data;
int retval = -ENODEV;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return -ENODEV;
}
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
if (mutex_lock_interruptible(&cs->mutex))
@ -414,9 +365,7 @@ static int if_write_room(struct tty_struct *tty)
if (!cs->connected) {
gig_dbg(DEBUG_IF, "not connected");
retval = -ENODEV;
} else if (!cs->open_count)
dev_warn(cs->dev, "%s: device not opened\n", __func__);
else if (cs->mstate != MS_LOCKED) {
} else if (cs->mstate != MS_LOCKED) {
dev_warn(cs->dev, "can't write to unlocked device\n");
retval = -EBUSY;
} else
@ -429,23 +378,15 @@ static int if_write_room(struct tty_struct *tty)
static int if_chars_in_buffer(struct tty_struct *tty)
{
struct cardstate *cs;
struct cardstate *cs = tty->driver_data;
int retval = 0;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return 0;
}
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
mutex_lock(&cs->mutex);
if (!cs->connected)
gig_dbg(DEBUG_IF, "not connected");
else if (!cs->open_count)
dev_warn(cs->dev, "%s: device not opened\n", __func__);
else if (cs->mstate != MS_LOCKED)
dev_warn(cs->dev, "can't write to unlocked device\n");
else
@ -458,13 +399,7 @@ static int if_chars_in_buffer(struct tty_struct *tty)
static void if_throttle(struct tty_struct *tty)
{
struct cardstate *cs;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return;
}
struct cardstate *cs = tty->driver_data;
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
@ -472,8 +407,6 @@ static void if_throttle(struct tty_struct *tty)
if (!cs->connected)
gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
else if (!cs->open_count)
dev_warn(cs->dev, "%s: device not opened\n", __func__);
else
gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__);
@ -482,13 +415,7 @@ static void if_throttle(struct tty_struct *tty)
static void if_unthrottle(struct tty_struct *tty)
{
struct cardstate *cs;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return;
}
struct cardstate *cs = tty->driver_data;
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
@ -496,8 +423,6 @@ static void if_unthrottle(struct tty_struct *tty)
if (!cs->connected)
gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
else if (!cs->open_count)
dev_warn(cs->dev, "%s: device not opened\n", __func__);
else
gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__);
@ -506,18 +431,12 @@ static void if_unthrottle(struct tty_struct *tty)
static void if_set_termios(struct tty_struct *tty, struct ktermios *old)
{
struct cardstate *cs;
struct cardstate *cs = tty->driver_data;
unsigned int iflag;
unsigned int cflag;
unsigned int old_cflag;
unsigned int control_state, new_state;
cs = (struct cardstate *) tty->driver_data;
if (!cs) {
pr_err("%s: no cardstate\n", __func__);
return;
}
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
mutex_lock(&cs->mutex);
@ -527,11 +446,6 @@ static void if_set_termios(struct tty_struct *tty, struct ktermios *old)
goto out;
}
if (!cs->open_count) {
dev_warn(cs->dev, "%s: device not opened\n", __func__);
goto out;
}
iflag = tty->termios->c_iflag;
cflag = tty->termios->c_cflag;
old_cflag = old ? old->c_cflag : cflag;
@ -588,10 +502,13 @@ out:
/* wakeup tasklet for the write operation */
static void if_wake(unsigned long data)
{
struct cardstate *cs = (struct cardstate *) data;
struct cardstate *cs = (struct cardstate *)data;
struct tty_struct *tty = tty_port_tty_get(&cs->port);
if (cs->tty)
tty_wakeup(cs->tty);
if (tty) {
tty_wakeup(tty);
tty_kref_put(tty);
}
}
/*** interface to common ***/
@ -644,18 +561,16 @@ void gigaset_if_free(struct cardstate *cs)
void gigaset_if_receive(struct cardstate *cs,
unsigned char *buffer, size_t len)
{
unsigned long flags;
struct tty_struct *tty;
struct tty_struct *tty = tty_port_tty_get(&cs->port);
spin_lock_irqsave(&cs->lock, flags);
tty = cs->tty;
if (tty == NULL)
if (tty == NULL) {
gig_dbg(DEBUG_IF, "receive on closed device");
else {
tty_insert_flip_string(tty, buffer, len);
tty_flip_buffer_push(tty);
return;
}
spin_unlock_irqrestore(&cs->lock, flags);
tty_insert_flip_string(tty, buffer, len);
tty_flip_buffer_push(tty);
tty_kref_put(tty);
}
EXPORT_SYMBOL_GPL(gigaset_if_receive);
@ -669,17 +584,15 @@ EXPORT_SYMBOL_GPL(gigaset_if_receive);
void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
const char *devname)
{
unsigned minors = drv->minors;
int ret;
struct tty_driver *tty;
drv->have_tty = 0;
drv->tty = tty = alloc_tty_driver(minors);
drv->tty = tty = alloc_tty_driver(drv->minors);
if (tty == NULL)
goto enomem;
tty->magic = TTY_DRIVER_MAGIC,
tty->type = TTY_DRIVER_TYPE_SERIAL,
tty->subtype = SERIAL_TYPE_NORMAL,
tty->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
@ -687,9 +600,6 @@ void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
tty->driver_name = procname;
tty->name = devname;
tty->minor_start = drv->minor;
tty->num = drv->minors;
tty->owner = THIS_MODULE;
tty->init_termios = tty_std_termios;
tty->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;

7
drivers/isdn/i4l/isdn_tty.c
View File

@ -1590,12 +1590,9 @@ static int
isdn_tty_open(struct tty_struct *tty, struct file *filp)
{
modem_info *info;
int retval, line;
int retval;
line = tty->index;
if (line < 0 || line >= ISDN_MAX_CHANNELS)
return -ENODEV;
info = &dev->mdm.info[line];
info = &dev->mdm.info[tty->index];
if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_open"))
return -ENODEV;
if (!try_module_get(info->owner)) {

12
drivers/misc/pti.c
View File

@ -481,13 +481,9 @@ static int pti_tty_install(struct tty_driver *driver, struct tty_struct *tty)
{
int idx = tty->index;
struct pti_tty *pti_tty_data;
int ret = tty_init_termios(tty);
int ret = tty_standard_install(driver, tty);
if (ret == 0) {
tty_driver_kref_get(driver);
tty->count++;
driver->ttys[idx] = tty;
pti_tty_data = kmalloc(sizeof(struct pti_tty), GFP_KERNEL);
if (pti_tty_data == NULL)
return -ENOMEM;
@ -911,21 +907,17 @@ static int __init pti_init(void)
/* First register module as tty device */
pti_tty_driver = alloc_tty_driver(1);
pti_tty_driver = alloc_tty_driver(PTITTY_MINOR_NUM);
if (pti_tty_driver == NULL) {
pr_err("%s(%d): Memory allocation failed for ptiTTY driver\n",
__func__, __LINE__);
return -ENOMEM;
}
pti_tty_driver->owner = THIS_MODULE;
pti_tty_driver->magic = TTY_DRIVER_MAGIC;
pti_tty_driver->driver_name = DRIVERNAME;
pti_tty_driver->name = TTYNAME;
pti_tty_driver->major = 0;
pti_tty_driver->minor_start = PTITTY_MINOR_START;
pti_tty_driver->minor_num = PTITTY_MINOR_NUM;
pti_tty_driver->num = PTITTY_MINOR_NUM;
pti_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM;
pti_tty_driver->subtype = SYSTEM_TYPE_SYSCONS;
pti_tty_driver->flags = TTY_DRIVER_REAL_RAW |

10
drivers/mmc/card/sdio_uart.c
View File

@ -750,15 +750,12 @@ static int sdio_uart_install(struct tty_driver *driver, struct tty_struct *tty)
{
int idx = tty->index;
struct sdio_uart_port *port = sdio_uart_port_get(idx);
int ret = tty_init_termios(tty);
int ret = tty_standard_install(driver, tty);
if (ret == 0) {
tty_driver_kref_get(driver);
tty->count++;
if (ret == 0)
/* This is the ref sdio_uart_port get provided */
tty->driver_data = port;
driver->ttys[idx] = tty;
} else
else
sdio_uart_port_put(port);
return ret;
}
@ -1178,7 +1175,6 @@ static int __init sdio_uart_init(void)
if (!tty_drv)
return -ENOMEM;
tty_drv->owner = THIS_MODULE;
tty_drv->driver_name = "sdio_uart";
tty_drv->name = "ttySDIO";
tty_drv->major = 0; /* dynamically allocated */

2
drivers/net/usb/hso.c
View File

@ -3313,7 +3313,6 @@ static int __init hso_init(void)
/* fill in all needed values */
tty_drv->magic = TTY_DRIVER_MAGIC;
tty_drv->owner = THIS_MODULE;
tty_drv->driver_name = driver_name;
tty_drv->name = tty_filename;
@ -3322,7 +3321,6 @@ static int __init hso_init(void)
tty_drv->major = tty_major;
tty_drv->minor_start = 0;
tty_drv->num = HSO_SERIAL_TTY_MINORS;
tty_drv->type = TTY_DRIVER_TYPE_SERIAL;
tty_drv->subtype = SERIAL_TYPE_NORMAL;
tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;

13
drivers/net/wan/pc300_drv.c
View File

@ -299,7 +299,6 @@ void cpc_tty_init(pc300dev_t * dev);
void cpc_tty_unregister_service(pc300dev_t * pc300dev);
void cpc_tty_receive(pc300dev_t * pc300dev);
void cpc_tty_trigger_poll(pc300dev_t * pc300dev);
void cpc_tty_reset_var(void);
#endif
/************************/
@ -3232,7 +3231,7 @@ static void plx_init(pc300_t * card)
}
static inline void show_version(void)
static void show_version(void)
{
char *rcsvers, *rcsdate, *tmp;
@ -3413,19 +3412,10 @@ static void cpc_init_card(pc300_t * card)
static int __devinit
cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int first_time = 1;
int err, eeprom_outdated = 0;
u16 device_id;
pc300_t *card;
if (first_time) {
first_time = 0;
show_version();
#ifdef CONFIG_PC300_MLPPP
cpc_tty_reset_var();
#endif
}
if ((err = pci_enable_device(pdev)) < 0)
return err;
@ -3661,6 +3651,7 @@ static struct pci_driver cpc_driver = {
static int __init cpc_init(void)
{
show_version();
return pci_register_driver(&cpc_driver);
}

18
drivers/net/wan/pc300_tty.c
View File

@ -139,7 +139,6 @@ void cpc_tty_init(pc300dev_t *dev);
void cpc_tty_unregister_service(pc300dev_t *pc300dev);
void cpc_tty_receive(pc300dev_t *pc300dev);
void cpc_tty_trigger_poll(pc300dev_t *pc300dev);
void cpc_tty_reset_var(void);
/*
* PC300 TTY clear "signal"
@ -1078,20 +1077,3 @@ void cpc_tty_trigger_poll(pc300dev_t *pc300dev)
}
schedule_work(&(cpc_tty->tty_tx_work));
}
/*
* PC300 TTY reset var routine
* This routine is called by pc300driver to init the TTY area.
*/
void cpc_tty_reset_var(void)
{
int i ;
CPC_TTY_DBG("hdlcX-tty: reset variables\n");
/* reset the tty_driver structure - serial_drv */
memset(&serial_drv, 0, sizeof(struct tty_driver));
for (i=0; i < CPC_TTY_NPORTS; i++){
memset(&cpc_tty_area[i],0, sizeof(st_cpc_tty_area));
}
}

9
drivers/s390/char/con3215.c
View File

@ -933,13 +933,9 @@ console_initcall(con3215_init);
static int tty3215_open(struct tty_struct *tty, struct file * filp)
{
struct raw3215_info *raw;
int retval, line;
int retval;
line = tty->index;
if ((line < 0) || (line >= NR_3215))
return -ENODEV;
raw = raw3215[line];
raw = raw3215[tty->index];
if (raw == NULL)
return -ENODEV;
@ -1145,7 +1141,6 @@ static int __init tty3215_init(void)
* proc_entry, set_termios, flush_buffer, set_ldisc, write_proc
*/
driver->owner = THIS_MODULE;
driver->driver_name = "tty3215";
driver->name = "ttyS";
driver->major = TTY_MAJOR;

1
drivers/s390/char/sclp_tty.c
View File

@ -551,7 +551,6 @@ sclp_tty_init(void)
return rc;
}
driver->owner = THIS_MODULE;
driver->driver_name = "sclp_line";
driver->name = "sclp_line";
driver->major = TTY_MAJOR;

1
drivers/s390/char/sclp_vt220.c
View File

@ -685,7 +685,6 @@ static int __init sclp_vt220_tty_init(void)
if (rc)
goto out_driver;
driver->owner = THIS_MODULE;
driver->driver_name = SCLP_VT220_DRIVER_NAME;
driver->name = SCLP_VT220_DEVICE_NAME;
driver->major = SCLP_VT220_MAJOR;

1
drivers/s390/char/tty3270.c
View File

@ -1784,7 +1784,6 @@ static int __init tty3270_init(void)
* Entries in tty3270_driver that are NOT initialized:
* proc_entry, set_termios, flush_buffer, set_ldisc, write_proc
*/
driver->owner = THIS_MODULE;
driver->driver_name = "ttyTUB";
driver->name = "ttyTUB";
driver->major = IBM_TTY3270_MAJOR;

8
drivers/staging/speakup/main.c
View File

@ -1731,15 +1731,15 @@ static void do_handle_spec(struct vc_data *vc, u_char value, char up_flag)
switch (value) {
case KVAL(K_CAPS):
label = msg_get(MSG_KEYNAME_CAPSLOCK);
on_off = (vc_kbd_led(kbd_table + vc->vc_num, VC_CAPSLOCK));
on_off = vt_get_leds(fg_console, VC_CAPSLOCK);
break;
case KVAL(K_NUM):
label = msg_get(MSG_KEYNAME_NUMLOCK);
on_off = (vc_kbd_led(kbd_table + vc->vc_num, VC_NUMLOCK));
on_off = vt_get_leds(fg_console, VC_NUMLOCK);
break;
case KVAL(K_HOLD):
label = msg_get(MSG_KEYNAME_SCROLLLOCK);
on_off = (vc_kbd_led(kbd_table + vc->vc_num, VC_SCROLLOCK));
on_off = vt_get_leds(fg_console, VC_SCROLLOCK);
if (speakup_console[vc->vc_num])
speakup_console[vc->vc_num]->tty_stopped = on_off;
break;
@ -2020,7 +2020,7 @@ speakup_key(struct vc_data *vc, int shift_state, int keycode, u_short keysym,
if (type >= 0xf0)
type -= 0xf0;
if (type == KT_PAD
&& (vc_kbd_led(kbd_table + fg_console, VC_NUMLOCK))) {
&& (vt_get_leds(fg_console, VC_NUMLOCK))) {
if (up_flag) {
spk_keydown = 0;
goto out;

11
drivers/staging/speakup/serialio.c
View File

@ -8,21 +8,20 @@
static void start_serial_interrupt(int irq);
static struct serial_state rs_table[] = {
static const struct old_serial_port rs_table[] = {
SERIAL_PORT_DFNS
};
static struct serial_state *serstate;
static const struct old_serial_port *serstate;
static int timeouts;
struct serial_state *spk_serial_init(int index)
const struct old_serial_port *spk_serial_init(int index)
{
int baud = 9600, quot = 0;
unsigned int cval = 0;
int cflag = CREAD | HUPCL | CLOCAL | B9600 | CS8;
struct serial_state *ser = NULL;
const struct old_serial_port *ser = rs_table + index;
int err;
ser = rs_table + index;
/* Divisor, bytesize and parity */
quot = ser->baud_base / baud;
cval = cflag & (CSIZE | CSTOPB);
@ -41,7 +40,7 @@ struct serial_state *spk_serial_init(int index)
__release_region(&ioport_resource, ser->port, 8);
err = synth_request_region(ser->port, 8);
if (err) {
pr_warn("Unable to allocate port at %lx, errno %i",
pr_warn("Unable to allocate port at %x, errno %i",
ser->port, err);
return NULL;
}

13
drivers/staging/speakup/serialio.h
View File

@ -4,11 +4,22 @@
#include <linux/serial.h> /* for rs_table, serial constants &
serial_uart_config */
#include <linux/serial_reg.h> /* for more serial constants */
#include <linux/serialP.h> /* for struct serial_state */
#ifndef __sparc__
#include <asm/serial.h>
#endif
/*
* this is cut&paste from 8250.h. Get rid of the structure, the definitions
* and this whole broken driver.
*/
struct old_serial_port {
unsigned int uart; /* unused */
unsigned int baud_base;
unsigned int port;
unsigned int irq;
unsigned int flags; /* unused */
};
/* countdown values for serial timeouts in us */
#define SPK_SERIAL_TIMEOUT 100000
/* countdown values transmitter/dsr timeouts in us */

2
drivers/staging/speakup/spk_priv.h
View File

@ -44,7 +44,7 @@
#define KT_SPKUP 15
extern struct serial_state *spk_serial_init(int index);
extern const struct old_serial_port *spk_serial_init(int index);
extern void stop_serial_interrupt(void);
extern int wait_for_xmitr(void);
extern unsigned char spk_serial_in(void);

2
drivers/staging/speakup/synth.c
View File

@ -34,7 +34,7 @@ static int do_synth_init(struct spk_synth *in_synth);
int serial_synth_probe(struct spk_synth *synth)
{
struct serial_state *ser;
const struct old_serial_port *ser;
int failed = 0;
if ((synth->ser >= SPK_LO_TTY) && (synth->ser <= SPK_HI_TTY)) {

730
drivers/tty/amiserial.c
View File

File diff suppressed because it is too large Load Diff

1
drivers/tty/bfin_jtag_comm.c
View File

@ -257,7 +257,6 @@ static int __init bfin_jc_init(void)
if (!bfin_jc_driver)
goto err_driver;
bfin_jc_driver->owner = THIS_MODULE;
bfin_jc_driver->driver_name = DRV_NAME;
bfin_jc_driver->name = DEV_NAME;
bfin_jc_driver->type = TTY_DRIVER_TYPE_SERIAL;

9
drivers/tty/cyclades.c
View File

@ -1515,13 +1515,9 @@ static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty)
static int cy_open(struct tty_struct *tty, struct file *filp)
{
struct cyclades_port *info;
unsigned int i, line;
unsigned int i, line = tty->index;
int retval;
line = tty->index;
if (tty->index < 0 || NR_PORTS <= line)
return -ENODEV;
for (i = 0; i < NR_CARDS; i++)
if (line < cy_card[i].first_line + cy_card[i].nports &&
line >= cy_card[i].first_line)
@ -2413,7 +2409,7 @@ static int get_lsr_info(struct cyclades_port *info, unsigned int __user *value)
/* Not supported yet */
return -EINVAL;
}
return put_user(result, (unsigned long __user *)value);
return put_user(result, value);
}
static int cy_tiocmget(struct tty_struct *tty)
@ -4090,7 +4086,6 @@ static int __init cy_init(void)
/* Initialize the tty_driver structure */
cy_serial_driver->owner = THIS_MODULE;
cy_serial_driver->driver_name = "cyclades";
cy_serial_driver->name = "ttyC";
cy_serial_driver->major = CYCLADES_MAJOR;

1
drivers/tty/ehv_bytechan.c
View File

@ -825,7 +825,6 @@ static int __init ehv_bc_init(void)
goto error;
}
ehv_bc_driver->owner = THIS_MODULE;
ehv_bc_driver->driver_name = "ehv-bc";
ehv_bc_driver->name = ehv_bc_console.name;
ehv_bc_driver->type = TTY_DRIVER_TYPE_CONSOLE;

2
drivers/tty/hvc/hvc_beat.c
View File

@ -113,7 +113,7 @@ static int __init hvc_beat_init(void)
if (!firmware_has_feature(FW_FEATURE_BEAT))
return -ENODEV;
hp = hvc_alloc(0, NO_IRQ, &hvc_beat_get_put_ops, 16);
hp = hvc_alloc(0, 0, &hvc_beat_get_put_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);
hvc_beat_dev = hp;

1
drivers/tty/hvc/hvc_console.c
View File

@ -917,7 +917,6 @@ static int hvc_init(void)
goto out;
}
drv->owner = THIS_MODULE;
drv->driver_name = "hvc";
drv->name = "hvc";
drv->major = HVC_MAJOR;

2
drivers/tty/hvc/hvc_rtas.c
View File

@ -94,7 +94,7 @@ static int __init hvc_rtas_init(void)
/* Allocate an hvc_struct for the console device we instantiated
* earlier. Save off hp so that we can return it on exit */
hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops, 16);
hp = hvc_alloc(hvc_rtas_cookie, 0, &hvc_rtas_get_put_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);

2
drivers/tty/hvc/hvc_udbg.c
View File

@ -69,7 +69,7 @@ static int __init hvc_udbg_init(void)
BUG_ON(hvc_udbg_dev);
hp = hvc_alloc(0, NO_IRQ, &hvc_udbg_ops, 16);
hp = hvc_alloc(0, 0, &hvc_udbg_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);

2
drivers/tty/hvc/hvc_xen.c
View File

@ -176,7 +176,7 @@ static int __init xen_hvc_init(void)
xencons_irq = bind_evtchn_to_irq(xen_start_info->console.domU.evtchn);
}
if (xencons_irq < 0)
xencons_irq = 0; /* NO_IRQ */
xencons_irq = 0;
else
irq_set_noprobe(xencons_irq);

30
drivers/tty/hvc/hvcs.c
View File

@ -1090,27 +1090,23 @@ static int hvcs_enable_device(struct hvcs_struct *hvcsd, uint32_t unit_address,
*/
static struct hvcs_struct *hvcs_get_by_index(int index)
{
struct hvcs_struct *hvcsd = NULL;
struct hvcs_struct *hvcsd;
unsigned long flags;
spin_lock(&hvcs_structs_lock);
/* We can immediately discard OOB requests */
if (index >= 0 && index < HVCS_MAX_SERVER_ADAPTERS) {
list_for_each_entry(hvcsd, &hvcs_structs, next) {
spin_lock_irqsave(&hvcsd->lock, flags);
if (hvcsd->index == index) {
kref_get(&hvcsd->kref);
spin_unlock_irqrestore(&hvcsd->lock, flags);
spin_unlock(&hvcs_structs_lock);
return hvcsd;
}
list_for_each_entry(hvcsd, &hvcs_structs, next) {
spin_lock_irqsave(&hvcsd->lock, flags);
if (hvcsd->index == index) {
kref_get(&hvcsd->kref);
spin_unlock_irqrestore(&hvcsd->lock, flags);
spin_unlock(&hvcs_structs_lock);
return hvcsd;
}
hvcsd = NULL;
spin_unlock_irqrestore(&hvcsd->lock, flags);
}
spin_unlock(&hvcs_structs_lock);
return hvcsd;
return NULL;
}
/*
@ -1203,7 +1199,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
{
struct hvcs_struct *hvcsd;
unsigned long flags;
int irq = NO_IRQ;
int irq;
/*
* Is someone trying to close the file associated with this device after
@ -1264,7 +1260,7 @@ static void hvcs_hangup(struct tty_struct * tty)
struct hvcs_struct *hvcsd = tty->driver_data;
unsigned long flags;
int temp_open_count;
int irq = NO_IRQ;
int irq;
spin_lock_irqsave(&hvcsd->lock, flags);
/* Preserve this so that we know how many kref refs to put */
@ -1499,8 +1495,6 @@ static int __devinit hvcs_initialize(void)
goto index_fail;
}
hvcs_tty_driver->owner = THIS_MODULE;
hvcs_tty_driver->driver_name = hvcs_driver_name;
hvcs_tty_driver->name = hvcs_device_node;

8
drivers/tty/hvc/hvsi.c
View File

@ -737,14 +737,11 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
{
struct hvsi_struct *hp;
unsigned long flags;
int line = tty->index;
int ret;
pr_debug("%s\n", __func__);
if (line < 0 || line >= hvsi_count)
return -ENODEV;
hp = &hvsi_ports[line];
hp = &hvsi_ports[tty->index];
tty->driver_data = hp;
@ -1088,7 +1085,6 @@ static int __init hvsi_init(void)
if (!hvsi_driver)
return -ENOMEM;
hvsi_driver->owner = THIS_MODULE;
hvsi_driver->driver_name = "hvsi";
hvsi_driver->name = "hvsi";
hvsi_driver->major = HVSI_MAJOR;
@ -1237,7 +1233,7 @@ static int __init hvsi_console_init(void)
hp->state = HVSI_CLOSED;
hp->vtermno = *vtermno;
hp->virq = irq_create_mapping(NULL, irq[0]);
if (hp->virq == NO_IRQ) {
if (hp->virq == 0) {
printk(KERN_ERR "%s: couldn't create irq mapping for 0x%x\n",
__func__, irq[0]);
continue;

35
drivers/tty/ipwireless/tty.c
View File

@ -90,33 +90,23 @@ static void report_deregistering(struct ipw_tty *tty)
tty->index);
}
static struct ipw_tty *get_tty(int minor)
static struct ipw_tty *get_tty(int index)
{
if (minor < ipw_tty_driver->minor_start
|| minor >= ipw_tty_driver->minor_start +
IPWIRELESS_PCMCIA_MINORS)
/*
* The 'ras_raw' channel is only available when 'loopback' mode
* is enabled.
* Number of minor starts with 16 (_RANGE * _RAS_RAW).
*/
if (!ipwireless_loopback && index >=
IPWIRELESS_PCMCIA_MINOR_RANGE * TTYTYPE_RAS_RAW)
return NULL;
else {
int minor_offset = minor - ipw_tty_driver->minor_start;
/*
* The 'ras_raw' channel is only available when 'loopback' mode
* is enabled.
* Number of minor starts with 16 (_RANGE * _RAS_RAW).
*/
if (!ipwireless_loopback &&
minor_offset >=
IPWIRELESS_PCMCIA_MINOR_RANGE * TTYTYPE_RAS_RAW)
return NULL;
return ttys[minor_offset];
}
return ttys[index];
}
static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
{
int minor = linux_tty->index;
struct ipw_tty *tty = get_tty(minor);
struct ipw_tty *tty = get_tty(linux_tty->index);
if (!tty)
return -ENODEV;
@ -510,7 +500,7 @@ static int add_tty(int j,
ipwireless_associate_network_tty(network,
secondary_channel_idx,
ttys[j]);
if (get_tty(j + ipw_tty_driver->minor_start) == ttys[j])
if (get_tty(j) == ttys[j])
report_registering(ttys[j]);
return 0;
}
@ -570,7 +560,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
if (ttyj) {
mutex_lock(&ttyj->ipw_tty_mutex);
if (get_tty(j + ipw_tty_driver->minor_start) == ttyj)
if (get_tty(j) == ttyj)
report_deregistering(ttyj);
ttyj->closing = 1;
if (ttyj->linux_tty != NULL) {
@ -614,7 +604,6 @@ int ipwireless_tty_init(void)
if (!ipw_tty_driver)
return -ENOMEM;
ipw_tty_driver->owner = THIS_MODULE;
ipw_tty_driver->driver_name = IPWIRELESS_PCCARD_NAME;
ipw_tty_driver->name = "ttyIPWp";
ipw_tty_driver->major = 0;

3
drivers/tty/isicom.c
View File

@ -849,8 +849,6 @@ static struct tty_port *isicom_find_port(struct tty_struct *tty)
unsigned int board;
int line = tty->index;
if (line < 0 || line > PORT_COUNT-1)
return NULL;
board = BOARD(line);
card = &isi_card[board];
@ -1678,7 +1676,6 @@ static int __init isicom_init(void)
goto error;
}
isicom_normal->owner = THIS_MODULE;
isicom_normal->name = "ttyM";
isicom_normal->major = ISICOM_NMAJOR;
isicom_normal->minor_start = 0;

3
drivers/tty/moxa.c
View File

@ -1036,7 +1036,6 @@ static int __init moxa_init(void)
if (!moxaDriver)
return -ENOMEM;
moxaDriver->owner = THIS_MODULE;
moxaDriver->name = "ttyMX";
moxaDriver->major = ttymajor;
moxaDriver->minor_start = 0;
@ -1331,7 +1330,7 @@ static void moxa_start(struct tty_struct *tty)
if (ch == NULL)
return;
if (!(ch->statusflags & TXSTOPPED))
if (!test_bit(TXSTOPPED, &ch->statusflags))
return;
MoxaPortTxEnable(ch);

5
drivers/tty/mxser.c
View File

@ -1010,8 +1010,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
line = tty->index;
if (line == MXSER_PORTS)
return 0;
if (line < 0 || line > MXSER_PORTS)
return -ENODEV;
info = &mxser_boards[line / MXSER_PORTS_PER_BOARD].ports[line % MXSER_PORTS_PER_BOARD];
if (!info->ioaddr)
return -ENODEV;
@ -2658,12 +2656,9 @@ static int __init mxser_module_init(void)
MXSER_VERSION);
/* Initialize the tty_driver structure */
mxvar_sdriver->owner = THIS_MODULE;
mxvar_sdriver->magic = TTY_DRIVER_MAGIC;
mxvar_sdriver->name = "ttyMI";
mxvar_sdriver->major = ttymajor;
mxvar_sdriver->minor_start = 0;
mxvar_sdriver->num = MXSER_PORTS + 1;
mxvar_sdriver->type = TTY_DRIVER_TYPE_SERIAL;
mxvar_sdriver->subtype = SERIAL_TYPE_NORMAL;
mxvar_sdriver->init_termios = tty_std_termios;

1
drivers/tty/n_gsm.c
View File

@ -3120,7 +3120,6 @@ static int __init gsm_init(void)
pr_err("gsm_init: tty allocation failed.\n");
return -EINVAL;
}
gsm_tty_driver->owner = THIS_MODULE;
gsm_tty_driver->driver_name = "gsmtty";
gsm_tty_driver->name = "gsmtty";
gsm_tty_driver->major = 0; /* Dynamic */

9
drivers/tty/nozomi.c
View File

@ -1602,13 +1602,9 @@ static int ntty_install(struct tty_driver *driver, struct tty_struct *tty)
int ret;
if (!port || !dc || dc->state != NOZOMI_STATE_READY)
return -ENODEV;
ret = tty_init_termios(tty);
if (ret == 0) {
tty_driver_kref_get(driver);
tty->count++;
ret = tty_standard_install(driver, tty);
if (ret == 0)
tty->driver_data = port;
driver->ttys[tty->index] = tty;
}
return ret;
}
@ -1920,7 +1916,6 @@ static __init int nozomi_init(void)
if (!ntty_driver)
return -ENOMEM;
ntty_driver->owner = THIS_MODULE;
ntty_driver->driver_name = NOZOMI_NAME_TTY;
ntty_driver->name = "noz";
ntty_driver->major = 0;

63
drivers/tty/pty.c
View File

@ -21,7 +21,6 @@
#include <linux/major.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/sysctl.h>
#include <linux/device.h>
#include <linux/uaccess.h>
#include <linux/bitops.h>
@ -394,7 +393,6 @@ static void __init legacy_pty_init(void)
if (!pty_slave_driver)
panic("Couldn't allocate pty slave driver");
pty_driver->owner = THIS_MODULE;
pty_driver->driver_name = "pty_master";
pty_driver->name = "pty";
pty_driver->major = PTY_MASTER_MAJOR;
@ -412,7 +410,6 @@ static void __init legacy_pty_init(void)
pty_driver->other = pty_slave_driver;
tty_set_operations(pty_driver, &master_pty_ops_bsd);
pty_slave_driver->owner = THIS_MODULE;
pty_slave_driver->driver_name = "pty_slave";
pty_slave_driver->name = "ttyp";
pty_slave_driver->major = PTY_SLAVE_MAJOR;
@ -439,55 +436,9 @@ static inline void legacy_pty_init(void) { }
/* Unix98 devices */
#ifdef CONFIG_UNIX98_PTYS
/*
* sysctl support for setting limits on the number of Unix98 ptys allocated.
* Otherwise one can eat up all kernel memory by opening /dev/ptmx repeatedly.
*/
int pty_limit = NR_UNIX98_PTY_DEFAULT;
static int pty_limit_min;
static int pty_limit_max = NR_UNIX98_PTY_MAX;
static int pty_count;
static struct cdev ptmx_cdev;
static struct ctl_table pty_table[] = {
{
.procname = "max",
.maxlen = sizeof(int),
.mode = 0644,
.data = &pty_limit,
.proc_handler = proc_dointvec_minmax,
.extra1 = &pty_limit_min,
.extra2 = &pty_limit_max,
}, {
.procname = "nr",
.maxlen = sizeof(int),
.mode = 0444,
.data = &pty_count,
.proc_handler = proc_dointvec,
},
{}
};
static struct ctl_table pty_kern_table[] = {
{
.procname = "pty",
.mode = 0555,
.child = pty_table,
},
{}
};
static struct ctl_table pty_root_table[] = {
{
.procname = "kernel",
.mode = 0555,
.child = pty_kern_table,
},
{}
};
static int pty_unix98_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
@ -515,10 +466,8 @@ static int pty_unix98_ioctl(struct tty_struct *tty,
static struct tty_struct *ptm_unix98_lookup(struct tty_driver *driver,
struct inode *ptm_inode, int idx)
{
struct tty_struct *tty = devpts_get_tty(ptm_inode, idx);
if (tty)
tty = tty->link;
return tty;
/* Master must be open via /dev/ptmx */
return ERR_PTR(-EIO);
}
/**
@ -589,7 +538,6 @@ static int pty_unix98_install(struct tty_driver *driver, struct tty_struct *tty)
*/
tty_driver_kref_get(driver);
tty->count++;
pty_count++;
return 0;
err_free_mem:
deinitialize_tty_struct(o_tty);
@ -603,7 +551,6 @@ err_free_tty:
static void ptm_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
{
pty_count--;
}
static void pts_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
@ -677,7 +624,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
mutex_lock(&tty_mutex);
tty_lock();
tty = tty_init_dev(ptm_driver, index, 1);
tty = tty_init_dev(ptm_driver, index);
mutex_unlock(&tty_mutex);
if (IS_ERR(tty)) {
@ -722,7 +669,6 @@ static void __init unix98_pty_init(void)
if (!pts_driver)
panic("Couldn't allocate Unix98 pts driver");
ptm_driver->owner = THIS_MODULE;
ptm_driver->driver_name = "pty_master";
ptm_driver->name = "ptm";
ptm_driver->major = UNIX98_PTY_MASTER_MAJOR;
@ -741,7 +687,6 @@ static void __init unix98_pty_init(void)
ptm_driver->other = pts_driver;
tty_set_operations(ptm_driver, &ptm_unix98_ops);
pts_driver->owner = THIS_MODULE;
pts_driver->driver_name = "pty_slave";
pts_driver->name = "pts";
pts_driver->major = UNIX98_PTY_SLAVE_MAJOR;
@ -762,8 +707,6 @@ static void __init unix98_pty_init(void)
if (tty_register_driver(pts_driver))
panic("Couldn't register Unix98 pts driver");
register_sysctl_table(pty_root_table);
/* Now create the /dev/ptmx special device */
tty_default_fops(&ptmx_fops);
ptmx_fops.open = ptmx_open;

7
drivers/tty/rocket.c
View File

@ -892,12 +892,12 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
{
struct r_port *info;
struct tty_port *port;
int line = 0, retval;
int retval;
CHANNEL_t *cp;
unsigned long page;
line = tty->index;
if (line < 0 || line >= MAX_RP_PORTS || ((info = rp_table[line]) == NULL))
info = rp_table[tty->index];
if (info == NULL)
return -ENXIO;
port = &info->port;
@ -2277,7 +2277,6 @@ static int __init rp_init(void)
* driver with the tty layer.
*/
rocket_driver->owner = THIS_MODULE;
rocket_driver->flags = TTY_DRIVER_DYNAMIC_DEV;
rocket_driver->name = "ttyR";
rocket_driver->driver_name = "Comtrol RocketPort";

4
drivers/tty/serial/21285.c
View File

@ -331,7 +331,7 @@ static int serial21285_verify_port(struct uart_port *port, struct serial_struct
int ret = 0;
if (ser->type != PORT_UNKNOWN && ser->type != PORT_21285)
ret = -EINVAL;
if (ser->irq != NO_IRQ)
if (ser->irq <= 0)
ret = -EINVAL;
if (ser->baud_base != port->uartclk / 16)
ret = -EINVAL;
@ -360,7 +360,7 @@ static struct uart_ops serial21285_ops = {
static struct uart_port serial21285_port = {
.mapbase = 0x42000160,
.iotype = UPIO_MEM,
.irq = NO_IRQ,
.irq = 0,
.fifosize = 16,
.ops = &serial21285_ops,
.flags = UPF_BOOT_AUTOCONF,

9
drivers/tty/serial/68328serial.c
View File

@ -1190,14 +1190,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
int rs_open(struct tty_struct *tty, struct file * filp)
{
struct m68k_serial *info;
int retval, line;
int retval;
line = tty->index;
if (line >= NR_PORTS || line < 0) /* we have exactly one */
return -ENODEV;
info = &m68k_soft[line];
info = &m68k_soft[tty->index];
if (serial_paranoia_check(info, tty->name, "rs_open"))
return -ENODEV;

742
drivers/tty/serial/8250/8250.c
View File

File diff suppressed because it is too large Load Diff

10
drivers/tty/serial/8250/8250.h
View File

@ -86,6 +86,16 @@ struct serial8250_config {
#define SERIAL8250_SHARE_IRQS 0
#endif
static inline int serial_in(struct uart_8250_port *up, int offset)
{
return up->port.serial_in(&up->port, offset);
}
static inline void serial_out(struct uart_8250_port *up, int offset, int value)
{
up->port.serial_out(&up->port, offset, value);
}
#if defined(__alpha__) && !defined(CONFIG_PCI)
/*
* Digital did something really horribly wrong with the OUT1 and OUT2

13
drivers/tty/serial/Kconfig
View File

@ -1347,4 +1347,17 @@ config SERIAL_AR933X_NR_UARTS
Set this to the number of serial ports you want the driver
to support.
config SERIAL_EFM32_UART
tristate "EFM32 UART/USART port."
depends on ARCH_EFM32
select SERIAL_CORE
help
This driver support the USART and UART ports on
Energy Micro's efm32 SoCs.
config SERIAL_EFM32_UART_CONSOLE
bool "EFM32 UART/USART console support"
depends on SERIAL_EFM32_UART=y
select SERIAL_CORE_CONSOLE
endmenu

3
drivers/tty/serial/Makefile
View File

@ -61,12 +61,12 @@ obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
obj-$(CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL) += nwpserial.o
obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
obj-$(CONFIG_SERIAL_OMAP) += omap-serial.o
obj-$(CONFIG_SERIAL_ALTERA_UART) += altera_uart.o
obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
obj-$(CONFIG_SERIAL_QE) += ucc_uart.o
obj-$(CONFIG_SERIAL_TIMBERDALE) += timbuart.o
obj-$(CONFIG_SERIAL_GRLIB_GAISLER_APBUART) += apbuart.o
obj-$(CONFIG_SERIAL_ALTERA_JTAGUART) += altera_jtaguart.o
obj-$(CONFIG_SERIAL_ALTERA_UART) += altera_uart.o
obj-$(CONFIG_SERIAL_VT8500) += vt8500_serial.o
obj-$(CONFIG_SERIAL_MRST_MAX3110) += mrst_max3110.o
obj-$(CONFIG_SERIAL_MFD_HSU) += mfd.o
@ -78,3 +78,4 @@ obj-$(CONFIG_SERIAL_LANTIQ) += lantiq.o
obj-$(CONFIG_SERIAL_XILINX_PS_UART) += xilinx_uartps.o
obj-$(CONFIG_SERIAL_SIRFSOC) += sirfsoc_uart.o
obj-$(CONFIG_SERIAL_AR933X) += ar933x_uart.o
obj-$(CONFIG_SERIAL_EFM32_UART) += efm32-uart.o

47
drivers/tty/serial/altera_uart.c
View File

@ -377,6 +377,26 @@ static int altera_uart_verify_port(struct uart_port *port,
return 0;
}
#ifdef CONFIG_CONSOLE_POLL
static int altera_uart_poll_get_char(struct uart_port *port)
{
while (!(altera_uart_readl(port, ALTERA_UART_STATUS_REG) &
ALTERA_UART_STATUS_RRDY_MSK))
cpu_relax();
return altera_uart_readl(port, ALTERA_UART_RXDATA_REG);
}
static void altera_uart_poll_put_char(struct uart_port *port, unsigned char c)
{
while (!(altera_uart_readl(port, ALTERA_UART_STATUS_REG) &
ALTERA_UART_STATUS_TRDY_MSK))
cpu_relax();
altera_uart_writel(port, c, ALTERA_UART_TXDATA_REG);
}
#endif
/*
* Define the basic serial functions we support.
*/
@ -397,35 +417,16 @@ static struct uart_ops altera_uart_ops = {
.release_port = altera_uart_release_port,
.config_port = altera_uart_config_port,
.verify_port = altera_uart_verify_port,
#ifdef CONFIG_CONSOLE_POLL
.poll_get_char = altera_uart_poll_get_char,
.poll_put_char = altera_uart_poll_put_char,
#endif
};
static struct altera_uart altera_uart_ports[CONFIG_SERIAL_ALTERA_UART_MAXPORTS];
#if defined(CONFIG_SERIAL_ALTERA_UART_CONSOLE)
int __init early_altera_uart_setup(struct altera_uart_platform_uart *platp)
{
struct uart_port *port;
int i;
for (i = 0; i < CONFIG_SERIAL_ALTERA_UART_MAXPORTS && platp[i].mapbase; i++) {
port = &altera_uart_ports[i].port;
port->line = i;
port->type = PORT_ALTERA_UART;
port->mapbase = platp[i].mapbase;
port->membase = ioremap(port->mapbase, ALTERA_UART_SIZE);
port->iotype = SERIAL_IO_MEM;
port->irq = platp[i].irq;
port->uartclk = platp[i].uartclk;
port->flags = UPF_BOOT_AUTOCONF;
port->ops = &altera_uart_ops;
port->private_data = platp;
}
return 0;
}
static void altera_uart_console_putc(struct uart_port *port, const char c)
{
while (!(altera_uart_readl(port, ALTERA_UART_STATUS_REG) &

32
drivers/tty/serial/amba-pl011.c
View File

@ -827,7 +827,12 @@ static void pl011_dma_rx_callback(void *data)
{
struct uart_amba_port *uap = data;
struct pl011_dmarx_data *dmarx = &uap->dmarx;
struct dma_chan *rxchan = dmarx->chan;
bool lastbuf = dmarx->use_buf_b;
struct pl011_sgbuf *sgbuf = dmarx->use_buf_b ?
&dmarx->sgbuf_b : &dmarx->sgbuf_a;
size_t pending;
struct dma_tx_state state;
int ret;
/*
@ -838,11 +843,21 @@ static void pl011_dma_rx_callback(void *data)
* we immediately trigger the next DMA job.
*/
spin_lock_irq(&uap->port.lock);
/*
* Rx data can be taken by the UART interrupts during
* the DMA irq handler. So we check the residue here.
*/
rxchan->device->device_tx_status(rxchan, dmarx->cookie, &state);
pending = sgbuf->sg.length - state.residue;
BUG_ON(pending > PL011_DMA_BUFFER_SIZE);
/* Then we terminate the transfer - we now know our residue */
dmaengine_terminate_all(rxchan);
uap->dmarx.running = false;
dmarx->use_buf_b = !lastbuf;
ret = pl011_dma_rx_trigger_dma(uap);
pl011_dma_rx_chars(uap, PL011_DMA_BUFFER_SIZE, lastbuf, false);
pl011_dma_rx_chars(uap, pending, lastbuf, false);
spin_unlock_irq(&uap->port.lock);
/*
* Do this check after we picked the DMA chars so we don't
@ -1381,6 +1396,10 @@ static int pl011_startup(struct uart_port *port)
uap->port.uartclk = clk_get_rate(uap->clk);
/* Clear pending error and receive interrupts */
writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS |
UART011_RTIS | UART011_RXIS, uap->port.membase + UART011_ICR);
/*
* Allocate the IRQ
*/
@ -1417,10 +1436,6 @@ static int pl011_startup(struct uart_port *port)
cr |= UART01x_CR_UARTEN | UART011_CR_RXE | UART011_CR_TXE;
writew(cr, uap->port.membase + UART011_CR);
/* Clear pending error interrupts */
writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS,
uap->port.membase + UART011_ICR);
/*
* initialise the old status of the modem signals
*/
@ -1435,6 +1450,9 @@ static int pl011_startup(struct uart_port *port)
* as well.
*/
spin_lock_irq(&uap->port.lock);
/* Clear out any spuriously appearing RX interrupts */
writew(UART011_RTIS | UART011_RXIS,
uap->port.membase + UART011_ICR);
uap->im = UART011_RTIM;
if (!pl011_dma_rx_running(uap))
uap->im |= UART011_RXIM;
@ -1927,6 +1945,10 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
goto unmap;
}
/* Ensure interrupts from this UART are masked and cleared */
writew(0, uap->port.membase + UART011_IMSC);
writew(0xffff, uap->port.membase + UART011_ICR);
uap->vendor = vendor;
uap->lcrh_rx = vendor->lcrh_rx;
uap->lcrh_tx = vendor->lcrh_tx;

8
drivers/tty/serial/bfin_uart.c
View File

@ -535,11 +535,13 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id)
* when start a new tx.
*/
UART_CLEAR_IER(uart, ETBEI);
xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1);
uart->port.icount.tx += uart->tx_count;
if (!uart_circ_empty(xmit)) {
xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1);
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(&uart->port);
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(&uart->port);
}
bfin_serial_dma_tx_chars(uart);
}

15
drivers/tty/serial/crisv10.c
View File

@ -4105,20 +4105,11 @@ static int
rs_open(struct tty_struct *tty, struct file * filp)
{
struct e100_serial *info;
int retval, line;
int retval;
unsigned long page;
int allocated_resources = 0;
/* find which port we want to open */
line = tty->index;
if (line < 0 || line >= NR_PORTS)
return -ENODEV;
/* find the corresponding e100_serial struct in the table */
info = rs_table + line;
/* don't allow the opening of ports that are not enabled in the HW config */
info = rs_table + tty->index;
if (!info->enabled)
return -ENODEV;
@ -4131,7 +4122,7 @@ rs_open(struct tty_struct *tty, struct file * filp)
tty->driver_data = info;
info->port.tty = tty;
info->port.tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
tty->low_latency = !!(info->flags & ASYNC_LOW_LATENCY);
if (!tmp_buf) {
page = get_zeroed_page(GFP_KERNEL);

830
drivers/tty/serial/efm32-uart.c Normal file
View File

@ -0,0 +1,830 @@
#if defined(CONFIG_SERIAL_EFM32_UART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
#define SUPPORT_SYSRQ
#endif
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/console.h>
#include <linux/sysrq.h>
#include <linux/serial_core.h>
#include <linux/tty_flip.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_data/efm32-uart.h>
#define DRIVER_NAME "efm32-uart"
#define DEV_NAME "ttyefm"
#define UARTn_CTRL 0x00
#define UARTn_CTRL_SYNC 0x0001
#define UARTn_CTRL_TXBIL 0x1000
#define UARTn_FRAME 0x04
#define UARTn_FRAME_DATABITS__MASK 0x000f
#define UARTn_FRAME_DATABITS(n) ((n) - 3)
#define UARTn_FRAME_PARITY_NONE 0x0000
#define UARTn_FRAME_PARITY_EVEN 0x0200
#define UARTn_FRAME_PARITY_ODD 0x0300
#define UARTn_FRAME_STOPBITS_HALF 0x0000
#define UARTn_FRAME_STOPBITS_ONE 0x1000
#define UARTn_FRAME_STOPBITS_TWO 0x3000
#define UARTn_CMD 0x0c
#define UARTn_CMD_RXEN 0x0001
#define UARTn_CMD_RXDIS 0x0002
#define UARTn_CMD_TXEN 0x0004
#define UARTn_CMD_TXDIS 0x0008
#define UARTn_STATUS 0x10
#define UARTn_STATUS_TXENS 0x0002
#define UARTn_STATUS_TXC 0x0020
#define UARTn_STATUS_TXBL 0x0040
#define UARTn_STATUS_RXDATAV 0x0080
#define UARTn_CLKDIV 0x14
#define UARTn_RXDATAX 0x18
#define UARTn_RXDATAX_RXDATA__MASK 0x01ff
#define UARTn_RXDATAX_PERR 0x4000
#define UARTn_RXDATAX_FERR 0x8000
/*
* This is a software only flag used for ignore_status_mask and
* read_status_mask! It's used for breaks that the hardware doesn't report
* explicitly.
*/
#define SW_UARTn_RXDATAX_BERR 0x2000
#define UARTn_TXDATA 0x34
#define UARTn_IF 0x40
#define UARTn_IF_TXC 0x0001
#define UARTn_IF_TXBL 0x0002
#define UARTn_IF_RXDATAV 0x0004
#define UARTn_IF_RXOF 0x0010
#define UARTn_IFS 0x44
#define UARTn_IFC 0x48
#define UARTn_IEN 0x4c
#define UARTn_ROUTE 0x54
#define UARTn_ROUTE_LOCATION__MASK 0x0700
#define UARTn_ROUTE_LOCATION(n) (((n) << 8) & UARTn_ROUTE_LOCATION__MASK)
#define UARTn_ROUTE_RXPEN 0x0001
#define UARTn_ROUTE_TXPEN 0x0002
struct efm32_uart_port {
struct uart_port port;
unsigned int txirq;
struct clk *clk;
};
#define to_efm_port(_port) container_of(_port, struct efm32_uart_port, port)
#define efm_debug(efm_port, format, arg...) \
dev_dbg(efm_port->port.dev, format, ##arg)
static void efm32_uart_write32(struct efm32_uart_port *efm_port,
u32 value, unsigned offset)
{
writel_relaxed(value, efm_port->port.membase + offset);
}
static u32 efm32_uart_read32(struct efm32_uart_port *efm_port,
unsigned offset)
{
return readl_relaxed(efm_port->port.membase + offset);
}
static unsigned int efm32_uart_tx_empty(struct uart_port *port)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
u32 status = efm32_uart_read32(efm_port, UARTn_STATUS);
if (status & UARTn_STATUS_TXC)
return TIOCSER_TEMT;
else
return 0;
}
static void efm32_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
/* sorry, neither handshaking lines nor loop functionallity */
}
static unsigned int efm32_uart_get_mctrl(struct uart_port *port)
{
/* sorry, no handshaking lines available */
return TIOCM_CAR | TIOCM_CTS | TIOCM_DSR;
}
static void efm32_uart_stop_tx(struct uart_port *port)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
u32 ien = efm32_uart_read32(efm_port, UARTn_IEN);
efm32_uart_write32(efm_port, UARTn_CMD_TXDIS, UARTn_CMD);
ien &= ~(UARTn_IF_TXC | UARTn_IF_TXBL);
efm32_uart_write32(efm_port, ien, UARTn_IEN);
}
static void efm32_uart_tx_chars(struct efm32_uart_port *efm_port)
{
struct uart_port *port = &efm_port->port;
struct circ_buf *xmit = &port->state->xmit;
while (efm32_uart_read32(efm_port, UARTn_STATUS) &
UARTn_STATUS_TXBL) {
if (port->x_char) {
port->icount.tx++;
efm32_uart_write32(efm_port, port->x_char,
UARTn_TXDATA);
port->x_char = 0;
continue;
}
if (!uart_circ_empty(xmit) && !uart_tx_stopped(port)) {
port->icount.tx++;
efm32_uart_write32(efm_port, xmit->buf[xmit->tail],
UARTn_TXDATA);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
} else
break;
}
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(port);
if (!port->x_char && uart_circ_empty(xmit) &&
efm32_uart_read32(efm_port, UARTn_STATUS) &
UARTn_STATUS_TXC)
efm32_uart_stop_tx(port);
}
static void efm32_uart_start_tx(struct uart_port *port)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
u32 ien;
efm32_uart_write32(efm_port,
UARTn_IF_TXBL | UARTn_IF_TXC, UARTn_IFC);
ien = efm32_uart_read32(efm_port, UARTn_IEN);
efm32_uart_write32(efm_port,
ien | UARTn_IF_TXBL | UARTn_IF_TXC, UARTn_IEN);
efm32_uart_write32(efm_port, UARTn_CMD_TXEN, UARTn_CMD);
efm32_uart_tx_chars(efm_port);
}
static void efm32_uart_stop_rx(struct uart_port *port)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
efm32_uart_write32(efm_port, UARTn_CMD_RXDIS, UARTn_CMD);
}
static void efm32_uart_enable_ms(struct uart_port *port)
{
/* no handshake lines, no modem status interrupts */
}
static void efm32_uart_break_ctl(struct uart_port *port, int ctl)
{
/* not possible without fiddling with gpios */
}
static void efm32_uart_rx_chars(struct efm32_uart_port *efm_port,
struct tty_struct *tty)
{
struct uart_port *port = &efm_port->port;
while (efm32_uart_read32(efm_port, UARTn_STATUS) &
UARTn_STATUS_RXDATAV) {
u32 rxdata = efm32_uart_read32(efm_port, UARTn_RXDATAX);
int flag = 0;
/*
* This is a reserved bit and I only saw it read as 0. But to be
* sure not to be confused too much by new devices adhere to the
* warning in the reference manual that reserverd bits might
* read as 1 in the future.
*/
rxdata &= ~SW_UARTn_RXDATAX_BERR;
port->icount.rx++;
if ((rxdata & UARTn_RXDATAX_FERR) &&
!(rxdata & UARTn_RXDATAX_RXDATA__MASK)) {
rxdata |= SW_UARTn_RXDATAX_BERR;
port->icount.brk++;
if (uart_handle_break(port))
continue;
} else if (rxdata & UARTn_RXDATAX_PERR)
port->icount.parity++;
else if (rxdata & UARTn_RXDATAX_FERR)
port->icount.frame++;
rxdata &= port->read_status_mask;
if (rxdata & SW_UARTn_RXDATAX_BERR)
flag = TTY_BREAK;
else if (rxdata & UARTn_RXDATAX_PERR)
flag = TTY_PARITY;
else if (rxdata & UARTn_RXDATAX_FERR)
flag = TTY_FRAME;
else if (uart_handle_sysrq_char(port,
rxdata & UARTn_RXDATAX_RXDATA__MASK))
continue;
if (tty && (rxdata & port->ignore_status_mask) == 0)
tty_insert_flip_char(tty,
rxdata & UARTn_RXDATAX_RXDATA__MASK, flag);
}
}
static irqreturn_t efm32_uart_rxirq(int irq, void *data)
{
struct efm32_uart_port *efm_port = data;
u32 irqflag = efm32_uart_read32(efm_port, UARTn_IF);
int handled = IRQ_NONE;
struct uart_port *port = &efm_port->port;
struct tty_struct *tty;
spin_lock(&port->lock);
tty = tty_kref_get(port->state->port.tty);
if (irqflag & UARTn_IF_RXDATAV) {
efm32_uart_write32(efm_port, UARTn_IF_RXDATAV, UARTn_IFC);
efm32_uart_rx_chars(efm_port, tty);
handled = IRQ_HANDLED;
}
if (irqflag & UARTn_IF_RXOF) {
efm32_uart_write32(efm_port, UARTn_IF_RXOF, UARTn_IFC);
port->icount.overrun++;
if (tty)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
handled = IRQ_HANDLED;
}
if (tty) {
tty_flip_buffer_push(tty);
tty_kref_put(tty);
}
spin_unlock(&port->lock);
return handled;
}
static irqreturn_t efm32_uart_txirq(int irq, void *data)
{
struct efm32_uart_port *efm_port = data;
u32 irqflag = efm32_uart_read32(efm_port, UARTn_IF);
/* TXBL doesn't need to be cleared */
if (irqflag & UARTn_IF_TXC)
efm32_uart_write32(efm_port, UARTn_IF_TXC, UARTn_IFC);
if (irqflag & (UARTn_IF_TXC | UARTn_IF_TXBL)) {
efm32_uart_tx_chars(efm_port);
return IRQ_HANDLED;
} else
return IRQ_NONE;
}
static int efm32_uart_startup(struct uart_port *port)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
u32 location = 0;
struct efm32_uart_pdata *pdata = dev_get_platdata(port->dev);
int ret;
if (pdata)
location = UARTn_ROUTE_LOCATION(pdata->location);
ret = clk_enable(efm_port->clk);
if (ret) {
efm_debug(efm_port, "failed to enable clk\n");
goto err_clk_enable;
}
port->uartclk = clk_get_rate(efm_port->clk);
/* Enable pins at configured location */
efm32_uart_write32(efm_port, location | UARTn_ROUTE_RXPEN | UARTn_ROUTE_TXPEN,
UARTn_ROUTE);
ret = request_irq(port->irq, efm32_uart_rxirq, 0,
DRIVER_NAME, efm_port);
if (ret) {
efm_debug(efm_port, "failed to register rxirq\n");
goto err_request_irq_rx;
}
/* disable all irqs */
efm32_uart_write32(efm_port, 0, UARTn_IEN);
ret = request_irq(efm_port->txirq, efm32_uart_txirq, 0,
DRIVER_NAME, efm_port);
if (ret) {
efm_debug(efm_port, "failed to register txirq\n");
free_irq(port->irq, efm_port);
err_request_irq_rx:
clk_disable(efm_port->clk);
} else {
efm32_uart_write32(efm_port,
UARTn_IF_RXDATAV | UARTn_IF_RXOF, UARTn_IEN);
efm32_uart_write32(efm_port, UARTn_CMD_RXEN, UARTn_CMD);
}
err_clk_enable:
return ret;
}
static void efm32_uart_shutdown(struct uart_port *port)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
efm32_uart_write32(efm_port, 0, UARTn_IEN);
free_irq(port->irq, efm_port);
clk_disable(efm_port->clk);
}
static void efm32_uart_set_termios(struct uart_port *port,
struct ktermios *new, struct ktermios *old)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
unsigned long flags;
unsigned baud;
u32 clkdiv;
u32 frame = 0;
/* no modem control lines */
new->c_cflag &= ~(CRTSCTS | CMSPAR);
baud = uart_get_baud_rate(port, new, old,
DIV_ROUND_CLOSEST(port->uartclk, 16 * 8192),
DIV_ROUND_CLOSEST(port->uartclk, 16));
switch (new->c_cflag & CSIZE) {
case CS5:
frame |= UARTn_FRAME_DATABITS(5);
break;
case CS6:
frame |= UARTn_FRAME_DATABITS(6);
break;
case CS7:
frame |= UARTn_FRAME_DATABITS(7);
break;
case CS8:
frame |= UARTn_FRAME_DATABITS(8);
break;
}
if (new->c_cflag & CSTOPB)
/* the receiver only verifies the first stop bit */
frame |= UARTn_FRAME_STOPBITS_TWO;
else
frame |= UARTn_FRAME_STOPBITS_ONE;
if (new->c_cflag & PARENB) {
if (new->c_cflag & PARODD)
frame |= UARTn_FRAME_PARITY_ODD;
else
frame |= UARTn_FRAME_PARITY_EVEN;
} else
frame |= UARTn_FRAME_PARITY_NONE;
/*
* the 6 lowest bits of CLKDIV are dc, bit 6 has value 0.25.
* port->uartclk <= 14e6, so 4 * port->uartclk doesn't overflow.
*/
clkdiv = (DIV_ROUND_CLOSEST(4 * port->uartclk, 16 * baud) - 4) << 6;
spin_lock_irqsave(&port->lock, flags);
efm32_uart_write32(efm_port,
UARTn_CMD_TXDIS | UARTn_CMD_RXDIS, UARTn_CMD);
port->read_status_mask = UARTn_RXDATAX_RXDATA__MASK;
if (new->c_iflag & INPCK)
port->read_status_mask |=
UARTn_RXDATAX_FERR | UARTn_RXDATAX_PERR;
if (new->c_iflag & (BRKINT | PARMRK))
port->read_status_mask |= SW_UARTn_RXDATAX_BERR;
port->ignore_status_mask = 0;
if (new->c_iflag & IGNPAR)
port->ignore_status_mask |=
UARTn_RXDATAX_FERR | UARTn_RXDATAX_PERR;
if (new->c_iflag & IGNBRK)
port->ignore_status_mask |= SW_UARTn_RXDATAX_BERR;
uart_update_timeout(port, new->c_cflag, baud);
efm32_uart_write32(efm_port, UARTn_CTRL_TXBIL, UARTn_CTRL);
efm32_uart_write32(efm_port, frame, UARTn_FRAME);
efm32_uart_write32(efm_port, clkdiv, UARTn_CLKDIV);
efm32_uart_write32(efm_port, UARTn_CMD_TXEN | UARTn_CMD_RXEN,
UARTn_CMD);
spin_unlock_irqrestore(&port->lock, flags);
}
static const char *efm32_uart_type(struct uart_port *port)
{
return port->type == PORT_EFMUART ? "efm32-uart" : NULL;
}
static void efm32_uart_release_port(struct uart_port *port)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
clk_unprepare(efm_port->clk);
clk_put(efm_port->clk);
iounmap(port->membase);
}
static int efm32_uart_request_port(struct uart_port *port)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
int ret;
port->membase = ioremap(port->mapbase, 60);
if (!efm_port->port.membase) {
ret = -ENOMEM;
efm_debug(efm_port, "failed to remap\n");
goto err_ioremap;
}
efm_port->clk = clk_get(port->dev, NULL);
if (IS_ERR(efm_port->clk)) {
ret = PTR_ERR(efm_port->clk);
efm_debug(efm_port, "failed to get clock\n");
goto err_clk_get;
}
ret = clk_prepare(efm_port->clk);
if (ret) {
clk_put(efm_port->clk);
err_clk_get:
iounmap(port->membase);
err_ioremap:
return ret;
}
return 0;
}
static void efm32_uart_config_port(struct uart_port *port, int type)
{
if (type & UART_CONFIG_TYPE &&
!efm32_uart_request_port(port))
port->type = PORT_EFMUART;
}
static int efm32_uart_verify_port(struct uart_port *port,
struct serial_struct *serinfo)
{
int ret = 0;
if (serinfo->type != PORT_UNKNOWN && serinfo->type != PORT_EFMUART)
ret = -EINVAL;
return ret;
}
static struct uart_ops efm32_uart_pops = {
.tx_empty = efm32_uart_tx_empty,
.set_mctrl = efm32_uart_set_mctrl,
.get_mctrl = efm32_uart_get_mctrl,
.stop_tx = efm32_uart_stop_tx,
.start_tx = efm32_uart_start_tx,
.stop_rx = efm32_uart_stop_rx,
.enable_ms = efm32_uart_enable_ms,
.break_ctl = efm32_uart_break_ctl,
.startup = efm32_uart_startup,
.shutdown = efm32_uart_shutdown,
.set_termios = efm32_uart_set_termios,
.type = efm32_uart_type,
.release_port = efm32_uart_release_port,
.request_port = efm32_uart_request_port,
.config_port = efm32_uart_config_port,
.verify_port = efm32_uart_verify_port,
};
static struct efm32_uart_port *efm32_uart_ports[5];
#ifdef CONFIG_SERIAL_EFM32_UART_CONSOLE
static void efm32_uart_console_putchar(struct uart_port *port, int ch)
{
struct efm32_uart_port *efm_port = to_efm_port(port);
unsigned int timeout = 0x400;
u32 status;
while (1) {
status = efm32_uart_read32(efm_port, UARTn_STATUS);
if (status & UARTn_STATUS_TXBL)
break;
if (!timeout--)
return;
}
efm32_uart_write32(efm_port, ch, UARTn_TXDATA);
}
static void efm32_uart_console_write(struct console *co, const char *s,
unsigned int count)
{
struct efm32_uart_port *efm_port = efm32_uart_ports[co->index];
u32 status = efm32_uart_read32(efm_port, UARTn_STATUS);
unsigned int timeout = 0x400;
if (!(status & UARTn_STATUS_TXENS))
efm32_uart_write32(efm_port, UARTn_CMD_TXEN, UARTn_CMD);
uart_console_write(&efm_port->port, s, count,
efm32_uart_console_putchar);
/* Wait for the transmitter to become empty */
while (1) {
u32 status = efm32_uart_read32(efm_port, UARTn_STATUS);
if (status & UARTn_STATUS_TXC)
break;
if (!timeout--)
break;
}
if (!(status & UARTn_STATUS_TXENS))
efm32_uart_write32(efm_port, UARTn_CMD_TXDIS, UARTn_CMD);
}
static void efm32_uart_console_get_options(struct efm32_uart_port *efm_port,
int *baud, int *parity, int *bits)
{
u32 ctrl = efm32_uart_read32(efm_port, UARTn_CTRL);
u32 route, clkdiv, frame;
if (ctrl & UARTn_CTRL_SYNC)
/* not operating in async mode */
return;
route = efm32_uart_read32(efm_port, UARTn_ROUTE);
if (!(route & UARTn_ROUTE_TXPEN))
/* tx pin not routed */
return;
clkdiv = efm32_uart_read32(efm_port, UARTn_CLKDIV);
*baud = DIV_ROUND_CLOSEST(4 * efm_port->port.uartclk,
16 * (4 + (clkdiv >> 6)));
frame = efm32_uart_read32(efm_port, UARTn_FRAME);
if (frame & UARTn_FRAME_PARITY_ODD)
*parity = 'o';
else if (frame & UARTn_FRAME_PARITY_EVEN)
*parity = 'e';
else
*parity = 'n';
*bits = (frame & UARTn_FRAME_DATABITS__MASK) -
UARTn_FRAME_DATABITS(4) + 4;
efm_debug(efm_port, "get_opts: options=%d%c%d\n",
*baud, *parity, *bits);
}
static int efm32_uart_console_setup(struct console *co, char *options)
{
struct efm32_uart_port *efm_port;
int baud = 115200;
int bits = 8;
int parity = 'n';
int flow = 'n';
int ret;
if (co->index < 0 || co->index >= ARRAY_SIZE(efm32_uart_ports)) {
unsigned i;
for (i = 0; i < ARRAY_SIZE(efm32_uart_ports); ++i) {
if (efm32_uart_ports[i]) {
pr_warn("efm32-console: fall back to console index %u (from %hhi)\n",
i, co->index);
co->index = i;
break;
}
}
}
efm_port = efm32_uart_ports[co->index];
if (!efm_port) {
pr_warn("efm32-console: No port at %d\n", co->index);
return -ENODEV;
}
ret = clk_prepare(efm_port->clk);
if (ret) {
dev_warn(efm_port->port.dev,
"console: clk_prepare failed: %d\n", ret);
return ret;
}
efm_port->port.uartclk = clk_get_rate(efm_port->clk);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
else
efm32_uart_console_get_options(efm_port,
&baud, &parity, &bits);
return uart_set_options(&efm_port->port, co, baud, parity, bits, flow);
}
static struct uart_driver efm32_uart_reg;
static struct console efm32_uart_console = {
.name = DEV_NAME,
.write = efm32_uart_console_write,
.device = uart_console_device,
.setup = efm32_uart_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
.data = &efm32_uart_reg,
};
#else
#define efm32_uart_console (*(struct console *)NULL)
#endif /* ifdef CONFIG_SERIAL_EFM32_UART_CONSOLE / else */
static struct uart_driver efm32_uart_reg = {
.owner = THIS_MODULE,
.driver_name = DRIVER_NAME,
.dev_name = DEV_NAME,
.nr = ARRAY_SIZE(efm32_uart_ports),
.cons = &efm32_uart_console,
};
static int efm32_uart_probe_dt(struct platform_device *pdev,
struct efm32_uart_port *efm_port)
{
struct device_node *np = pdev->dev.of_node;
int ret;
if (!np)
return 1;
ret = of_alias_get_id(np, "serial");
if (ret < 0) {
dev_err(&pdev->dev, "failed to get alias id: %d\n", ret);
return ret;
} else {
efm_port->port.line = ret;
return 0;
}
}
static int __devinit efm32_uart_probe(struct platform_device *pdev)
{
struct efm32_uart_port *efm_port;
struct resource *res;
int ret;
efm_port = kzalloc(sizeof(*efm_port), GFP_KERNEL);
if (!efm_port) {
dev_dbg(&pdev->dev, "failed to allocate private data\n");
return -ENOMEM;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
ret = -ENODEV;
dev_dbg(&pdev->dev, "failed to determine base address\n");
goto err_get_base;
}
if (resource_size(res) < 60) {
ret = -EINVAL;
dev_dbg(&pdev->dev, "memory resource too small\n");
goto err_too_small;
}
ret = platform_get_irq(pdev, 0);
if (ret <= 0) {
dev_dbg(&pdev->dev, "failed to get rx irq\n");
goto err_get_rxirq;
}
efm_port->port.irq = ret;
ret = platform_get_irq(pdev, 1);
if (ret <= 0)
ret = efm_port->port.irq + 1;
efm_port->txirq = ret;
efm_port->port.dev = &pdev->dev;
efm_port->port.mapbase = res->start;
efm_port->port.type = PORT_EFMUART;
efm_port->port.iotype = UPIO_MEM32;
efm_port->port.fifosize = 2;
efm_port->port.ops = &efm32_uart_pops;
efm_port->port.flags = UPF_BOOT_AUTOCONF;
ret = efm32_uart_probe_dt(pdev, efm_port);
if (ret > 0)
/* not created by device tree */
efm_port->port.line = pdev->id;
if (efm_port->port.line >= 0 &&
efm_port->port.line < ARRAY_SIZE(efm32_uart_ports))
efm32_uart_ports[efm_port->port.line] = efm_port;
ret = uart_add_one_port(&efm32_uart_reg, &efm_port->port);
if (ret) {
dev_dbg(&pdev->dev, "failed to add port: %d\n", ret);
if (pdev->id >= 0 && pdev->id < ARRAY_SIZE(efm32_uart_ports))
efm32_uart_ports[pdev->id] = NULL;
err_get_rxirq:
err_too_small:
err_get_base:
kfree(efm_port);
} else {
platform_set_drvdata(pdev, efm_port);
dev_dbg(&pdev->dev, "\\o/\n");
}
return ret;
}
static int __devexit efm32_uart_remove(struct platform_device *pdev)
{
struct efm32_uart_port *efm_port = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, NULL);
uart_remove_one_port(&efm32_uart_reg, &efm_port->port);
if (pdev->id >= 0 && pdev->id < ARRAY_SIZE(efm32_uart_ports))
efm32_uart_ports[pdev->id] = NULL;
kfree(efm_port);
return 0;
}
static struct of_device_id efm32_uart_dt_ids[] = {
{
.compatible = "efm32,uart",
}, {
/* sentinel */
}
};
MODULE_DEVICE_TABLE(of, efm32_uart_dt_ids);
static struct platform_driver efm32_uart_driver = {
.probe = efm32_uart_probe,
.remove = __devexit_p(efm32_uart_remove),
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
.of_match_table = efm32_uart_dt_ids,
},
};
static int __init efm32_uart_init(void)
{
int ret;
ret = uart_register_driver(&efm32_uart_reg);
if (ret)
return ret;
ret = platform_driver_register(&efm32_uart_driver);
if (ret)
uart_unregister_driver(&efm32_uart_reg);
pr_info("EFM32 UART/USART driver\n");
return ret;
}
module_init(efm32_uart_init);
static void __exit efm32_uart_exit(void)
{
platform_driver_unregister(&efm32_uart_driver);
uart_unregister_driver(&efm32_uart_reg);
}
MODULE_AUTHOR("Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>");
MODULE_DESCRIPTION("EFM32 UART/USART driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRIVER_NAME);

3
drivers/tty/serial/ifx6x60.c
View File

@ -1375,12 +1375,9 @@ static int __init ifx_spi_init(void)
return -ENOMEM;
}
tty_drv->magic = TTY_DRIVER_MAGIC;
tty_drv->owner = THIS_MODULE;
tty_drv->driver_name = DRVNAME;
tty_drv->name = TTYNAME;
tty_drv->minor_start = IFX_SPI_TTY_ID;
tty_drv->num = 1;
tty_drv->type = TTY_DRIVER_TYPE_SERIAL;
tty_drv->subtype = SERIAL_TYPE_NORMAL;
tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;

3
drivers/tty/serial/ioc4_serial.c
View File

@ -16,7 +16,6 @@
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/serial.h>
#include <linux/serialP.h>
#include <linux/circ_buf.h>
#include <linux/serial_reg.h>
#include <linux/module.h>
@ -975,7 +974,7 @@ intr_connect(struct ioc4_soft *soft, int type,
BUG_ON(!((type == IOC4_SIO_INTR_TYPE)
|| (type == IOC4_OTHER_INTR_TYPE)));
i = atomic_inc(&soft-> is_intr_type[type].is_num_intrs) - 1;
i = atomic_inc_return(&soft-> is_intr_type[type].is_num_intrs) - 1;
BUG_ON(!(i < MAX_IOC4_INTR_ENTS || (printk("i %d\n", i), 0)));
/* Save off the lower level interrupt handler */

12
drivers/tty/serial/m32r_sio.c
View File

@ -38,7 +38,6 @@
#include <linux/console.h>
#include <linux/sysrq.h>
#include <linux/serial.h>
#include <linux/serialP.h>
#include <linux/delay.h>
#include <asm/m32r.h>
@ -70,13 +69,6 @@
#define PASS_LIMIT 256
/*
* We default to IRQ0 for the "no irq" hack. Some
* machine types want others as well - they're free
* to redefine this in their header file.
*/
#define is_real_interrupt(irq) ((irq) != 0)
#define BASE_BAUD 115200
/* Standard COM flags */
@ -640,7 +632,7 @@ static int m32r_sio_startup(struct uart_port *port)
* hardware interrupt, we use a timer-based system. The original
* driver used to do this with IRQ0.
*/
if (!is_real_interrupt(up->port.irq)) {
if (!up->port.irq) {
unsigned int timeout = up->port.timeout;
timeout = timeout > 6 ? (timeout / 2 - 2) : 1;
@ -687,7 +679,7 @@ static void m32r_sio_shutdown(struct uart_port *port)
sio_init();
if (!is_real_interrupt(up->port.irq))
if (!up->port.irq)
del_timer_sync(&up->timer);
else
serial_unlink_irq_chain(up);

1
drivers/tty/serial/m32r_sio.h
View File

@ -15,6 +15,7 @@
* (at your option) any later version.
*/
#include <linux/pci.h>
struct m32r_sio_probe {
struct module *owner;

9
drivers/tty/serial/mpc52xx_uart.c
View File

@ -262,8 +262,9 @@ static unsigned int mpc5200b_psc_set_baudrate(struct uart_port *port,
port->uartclk / 4);
divisor = (port->uartclk + 2 * baud) / (4 * baud);
/* select the proper prescaler and set the divisor */
if (divisor > 0xffff) {
/* select the proper prescaler and set the divisor
* prefer high prescaler for more tolerance on low baudrates */
if (divisor > 0xffff || baud <= 115200) {
divisor = (divisor + 4) / 8;
prescaler = 0xdd00; /* /32 */
} else
@ -507,7 +508,7 @@ static int __init mpc512x_psc_fifoc_init(void)
psc_fifoc_irq = irq_of_parse_and_map(np, 0);
of_node_put(np);
if (psc_fifoc_irq == NO_IRQ) {
if (psc_fifoc_irq == 0) {
pr_err("%s: Can't get FIFOC irq\n", __func__);
iounmap(psc_fifoc);
return -ENODEV;
@ -1354,7 +1355,7 @@ static int __devinit mpc52xx_uart_of_probe(struct platform_device *op)
}
psc_ops->get_irq(port, op->dev.of_node);
if (port->irq == NO_IRQ) {
if (port->irq == 0) {
dev_dbg(&op->dev, "Could not get irq\n");
return -EINVAL;
}

1
drivers/tty/serial/msm_smd_tty.c
View File

@ -203,7 +203,6 @@ static int __init smd_tty_init(void)
if (smd_tty_driver == 0)
return -ENOMEM;
smd_tty_driver->owner = THIS_MODULE;
smd_tty_driver->driver_name = "smd_tty_driver";
smd_tty_driver->name = "smd";
smd_tty_driver->major = 0;

3
drivers/tty/serial/mux.c
View File

@ -17,7 +17,6 @@
*/
#include <linux/module.h>
#include <linux/tty.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/serial.h>
@ -499,7 +498,7 @@ static int __init mux_probe(struct parisc_device *dev)
port->membase = ioremap_nocache(port->mapbase, MUX_LINE_OFFSET);
port->iotype = UPIO_MEM;
port->type = PORT_MUX;
port->irq = NO_IRQ;
port->irq = 0;
port->uartclk = 0;
port->fifosize = MUX_FIFO_SIZE;
port->ops = &mux_pops;

6
drivers/tty/serial/omap-serial.c
View File

@ -159,7 +159,7 @@ static void serial_omap_stop_tx(struct uart_port *port)
serial_out(up, UART_IER, up->ier);
}
if (!up->use_dma && pdata->set_forceidle)
if (!up->use_dma && pdata && pdata->set_forceidle)
pdata->set_forceidle(up->pdev);
pm_runtime_mark_last_busy(&up->pdev->dev);
@ -298,7 +298,7 @@ static void serial_omap_start_tx(struct uart_port *port)
if (!up->use_dma) {
pm_runtime_get_sync(&up->pdev->dev);
serial_omap_enable_ier_thri(up);
if (pdata->set_noidle)
if (pdata && pdata->set_noidle)
pdata->set_noidle(up->pdev);
pm_runtime_mark_last_busy(&up->pdev->dev);
pm_runtime_put_autosuspend(&up->pdev->dev);
@ -1613,7 +1613,7 @@ static int serial_omap_runtime_resume(struct device *dev)
struct uart_omap_port *up = dev_get_drvdata(dev);
struct omap_uart_port_info *pdata = dev->platform_data;
if (up) {
if (up && pdata) {
if (pdata->get_context_loss_count) {
u32 loss_cnt = pdata->get_context_loss_count(dev);

174
drivers/tty/serial/pch_uart.c
View File

@ -29,6 +29,7 @@
#include <linux/nmi.h>
#include <linux/delay.h>
#include <linux/debugfs.h>
#include <linux/dmaengine.h>
#include <linux/pch_dma.h>
@ -144,6 +145,8 @@ enum {
#define PCH_UART_DLL 0x00
#define PCH_UART_DLM 0x01
#define PCH_UART_BRCSR 0x0E
#define PCH_UART_IID_RLS (PCH_UART_IIR_REI)
#define PCH_UART_IID_RDR (PCH_UART_IIR_RRI)
#define PCH_UART_IID_RDR_TO (PCH_UART_IIR_RRI | PCH_UART_IIR_TOI)
@ -203,7 +206,10 @@ enum {
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
#define DEFAULT_BAUD_RATE 1843200 /* 1.8432MHz */
#define DEFAULT_UARTCLK 1843200 /* 1.8432 MHz */
#define CMITC_UARTCLK 192000000 /* 192.0000 MHz */
#define FRI2_64_UARTCLK 64000000 /* 64.0000 MHz */
#define FRI2_48_UARTCLK 48000000 /* 48.0000 MHz */
struct pch_uart_buffer {
unsigned char *buf;
@ -218,7 +224,7 @@ struct eg20t_port {
unsigned int iobase;
struct pci_dev *pdev;
int fifo_size;
int base_baud;
int uartclk;
int start_tx;
int start_rx;
int tx_empty;
@ -243,6 +249,8 @@ struct eg20t_port {
int tx_dma_use;
void *rx_buf_virt;
dma_addr_t rx_buf_dma;
struct dentry *debugfs;
};
/**
@ -287,26 +295,100 @@ static struct pch_uart_driver_data drv_dat[] = {
static struct eg20t_port *pch_uart_ports[PCH_UART_NR];
#endif
static unsigned int default_baud = 9600;
static unsigned int user_uartclk = 0;
static const int trigger_level_256[4] = { 1, 64, 128, 224 };
static const int trigger_level_64[4] = { 1, 16, 32, 56 };
static const int trigger_level_16[4] = { 1, 4, 8, 14 };
static const int trigger_level_1[4] = { 1, 1, 1, 1 };
static void pch_uart_hal_request(struct pci_dev *pdev, int fifosize,
int base_baud)
{
struct eg20t_port *priv = pci_get_drvdata(pdev);
#ifdef CONFIG_DEBUG_FS
priv->trigger_level = 1;
priv->fcr = 0;
#define PCH_REGS_BUFSIZE 1024
static int pch_show_regs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static unsigned int get_msr(struct eg20t_port *priv, void __iomem *base)
static ssize_t port_show_regs(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
unsigned int msr = ioread8(base + UART_MSR);
priv->dmsr |= msr & PCH_UART_MSR_DELTA;
struct eg20t_port *priv = file->private_data;
char *buf;
u32 len = 0;
ssize_t ret;
unsigned char lcr;
return msr;
buf = kzalloc(PCH_REGS_BUFSIZE, GFP_KERNEL);
if (!buf)
return 0;
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"PCH EG20T port[%d] regs:\n", priv->port.line);
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"=================================\n");
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"IER: \t0x%02x\n", ioread8(priv->membase + UART_IER));
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"IIR: \t0x%02x\n", ioread8(priv->membase + UART_IIR));
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"LCR: \t0x%02x\n", ioread8(priv->membase + UART_LCR));
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"MCR: \t0x%02x\n", ioread8(priv->membase + UART_MCR));
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"LSR: \t0x%02x\n", ioread8(priv->membase + UART_LSR));
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"MSR: \t0x%02x\n", ioread8(priv->membase + UART_MSR));
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"BRCSR: \t0x%02x\n",
ioread8(priv->membase + PCH_UART_BRCSR));
lcr = ioread8(priv->membase + UART_LCR);
iowrite8(PCH_UART_LCR_DLAB, priv->membase + UART_LCR);
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"DLL: \t0x%02x\n", ioread8(priv->membase + UART_DLL));
len += snprintf(buf + len, PCH_REGS_BUFSIZE - len,
"DLM: \t0x%02x\n", ioread8(priv->membase + UART_DLM));
iowrite8(lcr, priv->membase + UART_LCR);
if (len > PCH_REGS_BUFSIZE)
len = PCH_REGS_BUFSIZE;
ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return ret;
}
static const struct file_operations port_regs_ops = {
.owner = THIS_MODULE,
.open = pch_show_regs_open,
.read = port_show_regs,
.llseek = default_llseek,
};
#endif /* CONFIG_DEBUG_FS */
/* Return UART clock, checking for board specific clocks. */
static int pch_uart_get_uartclk(void)
{
const char *cmp;
if (user_uartclk)
return user_uartclk;
cmp = dmi_get_system_info(DMI_BOARD_NAME);
if (cmp && strstr(cmp, "CM-iTC"))
return CMITC_UARTCLK;
cmp = dmi_get_system_info(DMI_BIOS_VERSION);
if (cmp && strnstr(cmp, "FRI2", 4))
return FRI2_64_UARTCLK;
cmp = dmi_get_system_info(DMI_PRODUCT_NAME);
if (cmp && strstr(cmp, "Fish River Island II"))
return FRI2_48_UARTCLK;
return DEFAULT_UARTCLK;
}
static void pch_uart_hal_enable_interrupt(struct eg20t_port *priv,
@ -332,7 +414,7 @@ static int pch_uart_hal_set_line(struct eg20t_port *priv, int baud,
unsigned int dll, dlm, lcr;
int div;
div = DIV_ROUND_CLOSEST(priv->base_baud / 16, baud);
div = DIV_ROUND_CLOSEST(priv->uartclk / 16, baud);
if (div < 0 || USHRT_MAX <= div) {
dev_err(priv->port.dev, "Invalid Baud(div=0x%x)\n", div);
return -EINVAL;
@ -442,8 +524,9 @@ static int pch_uart_hal_set_fifo(struct eg20t_port *priv,
static u8 pch_uart_hal_get_modem(struct eg20t_port *priv)
{
priv->dmsr = 0;
return get_msr(priv, priv->membase);
unsigned int msr = ioread8(priv->membase + UART_MSR);
priv->dmsr = msr & PCH_UART_MSR_DELTA;
return (u8)msr;
}
static void pch_uart_hal_write(struct eg20t_port *priv,
@ -524,7 +607,7 @@ static int push_rx(struct eg20t_port *priv, const unsigned char *buf,
static int pop_tx_x(struct eg20t_port *priv, unsigned char *buf)
{
int ret;
int ret = 0;
struct uart_port *port = &priv->port;
if (port->x_char) {
@ -533,8 +616,6 @@ static int pop_tx_x(struct eg20t_port *priv, unsigned char *buf)
buf[0] = port->x_char;
port->x_char = 0;
ret = 1;
} else {
ret = 0;
}
return ret;
@ -1032,14 +1113,12 @@ static irqreturn_t pch_uart_interrupt(int irq, void *dev_id)
static unsigned int pch_uart_tx_empty(struct uart_port *port)
{
struct eg20t_port *priv;
int ret;
priv = container_of(port, struct eg20t_port, port);
if (priv->tx_empty)
ret = TIOCSER_TEMT;
return TIOCSER_TEMT;
else
ret = 0;
return ret;
return 0;
}
/* Returns the current state of modem control inputs. */
@ -1153,9 +1232,9 @@ static int pch_uart_startup(struct uart_port *port)
priv->tx_empty = 1;
if (port->uartclk)
priv->base_baud = port->uartclk;
priv->uartclk = port->uartclk;
else
port->uartclk = priv->base_baud;
port->uartclk = priv->uartclk;
pch_uart_hal_disable_interrupt(priv, PCH_UART_HAL_ALL_INT);
ret = pch_uart_hal_set_line(priv, default_baud,
@ -1273,9 +1352,8 @@ static void pch_uart_set_termios(struct uart_port *port,
else
parity = PCH_UART_HAL_PARITY_EVEN;
} else {
} else
parity = PCH_UART_HAL_PARITY_NONE;
}
/* Only UART0 has auto hardware flow function */
if ((termios->c_cflag & CRTSCTS) && (priv->fifo_size == 256))
@ -1447,7 +1525,6 @@ static void
pch_console_write(struct console *co, const char *s, unsigned int count)
{
struct eg20t_port *priv;
unsigned long flags;
u8 ier;
int locked = 1;
@ -1489,7 +1566,7 @@ pch_console_write(struct console *co, const char *s, unsigned int count)
static int __init pch_console_setup(struct console *co, char *options)
{
struct uart_port *port;
int baud = 9600;
int baud = default_baud;
int bits = 8;
int parity = 'n';
int flow = 'n';
@ -1506,8 +1583,7 @@ static int __init pch_console_setup(struct console *co, char *options)
if (!port || (!port->iobase && !port->membase))
return -ENODEV;
/* setup uartclock */
port->uartclk = DEFAULT_BAUD_RATE;
port->uartclk = pch_uart_get_uartclk();
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
@ -1550,10 +1626,10 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
unsigned int iobase;
unsigned int mapbase;
unsigned char *rxbuf;
int fifosize, base_baud;
int fifosize;
int port_type;
struct pch_uart_driver_data *board;
const char *board_name;
char name[32]; /* for debugfs file name */
board = &drv_dat[id->driver_data];
port_type = board->port_type;
@ -1566,13 +1642,6 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
if (!rxbuf)
goto init_port_free_txbuf;
base_baud = DEFAULT_BAUD_RATE;
/* quirk for CM-iTC board */
board_name = dmi_get_system_info(DMI_BOARD_NAME);
if (board_name && strstr(board_name, "CM-iTC"))
base_baud = 192000000; /* 192.0MHz */
switch (port_type) {
case PORT_UNKNOWN:
fifosize = 256; /* EG20T/ML7213: UART0 */
@ -1597,7 +1666,7 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
priv->rxbuf.size = PAGE_SIZE;
priv->fifo_size = fifosize;
priv->base_baud = base_baud;
priv->uartclk = pch_uart_get_uartclk();
priv->port_type = PORT_MAX_8250 + port_type + 1;
priv->port.dev = &pdev->dev;
priv->port.iobase = iobase;
@ -1614,7 +1683,8 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
spin_lock_init(&priv->port.lock);
pci_set_drvdata(pdev, priv);
pch_uart_hal_request(pdev, fifosize, base_baud);
priv->trigger_level = 1;
priv->fcr = 0;
#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
pch_uart_ports[board->line_no] = priv;
@ -1623,6 +1693,12 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
if (ret < 0)
goto init_port_hal_free;
#ifdef CONFIG_DEBUG_FS
snprintf(name, sizeof(name), "uart%d_regs", board->line_no);
priv->debugfs = debugfs_create_file(name, S_IFREG | S_IRUGO,
NULL, priv, &port_regs_ops);
#endif
return priv;
init_port_hal_free:
@ -1639,6 +1715,11 @@ init_port_alloc_err:
static void pch_uart_exit_port(struct eg20t_port *priv)
{
#ifdef CONFIG_DEBUG_FS
if (priv->debugfs)
debugfs_remove(priv->debugfs);
#endif
uart_remove_one_port(&pch_uart_driver, &priv->port);
pci_set_drvdata(priv->pdev, NULL);
free_page((unsigned long)priv->rxbuf.buf);
@ -1646,9 +1727,7 @@ static void pch_uart_exit_port(struct eg20t_port *priv)
static void pch_uart_pci_remove(struct pci_dev *pdev)
{
struct eg20t_port *priv;
priv = (struct eg20t_port *)pci_get_drvdata(pdev);
struct eg20t_port *priv = pci_get_drvdata(pdev);
pci_disable_msi(pdev);
@ -1785,3 +1864,8 @@ module_exit(pch_uart_module_exit);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Intel EG20T PCH UART PCI Driver");
module_param(default_baud, uint, S_IRUGO);
MODULE_PARM_DESC(default_baud,
"Default BAUD for initial driver state and console (default 9600)");
module_param(user_uartclk, uint, S_IRUGO);
MODULE_PARM_DESC(user_uartclk,
"Override UART default or board specific UART clock");

2
drivers/tty/serial/pmac_zilog.c
View File

@ -1506,7 +1506,7 @@ no_dma:
* fixed up interrupt info, but we use the device-tree directly
* here due to early probing so we need the fixup too.
*/
if (uap->port.irq == NO_IRQ &&
if (uap->port.irq == 0 &&
np->parent && np->parent->parent &&
of_device_is_compatible(np->parent->parent, "gatwick")) {
/* IRQs on gatwick are offset by 64 */

8
drivers/tty/serial/pxa.c
View File

@ -579,9 +579,9 @@ serial_pxa_pm(struct uart_port *port, unsigned int state,
struct uart_pxa_port *up = (struct uart_pxa_port *)port;
if (!state)
clk_enable(up->clk);
clk_prepare_enable(up->clk);
else
clk_disable(up->clk);
clk_disable_unprepare(up->clk);
}
static void serial_pxa_release_port(struct uart_port *port)
@ -668,7 +668,7 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count)
struct uart_pxa_port *up = serial_pxa_ports[co->index];
unsigned int ier;
clk_enable(up->clk);
clk_prepare_enable(up->clk);
/*
* First save the IER then disable the interrupts
@ -685,7 +685,7 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count)
wait_for_xmitr(up);
serial_out(up, UART_IER, ier);
clk_disable(up->clk);
clk_disable_unprepare(up->clk);
}
static int __init

2
drivers/tty/serial/samsung.c
View File

@ -1507,7 +1507,7 @@ static struct s3c24xx_serial_drv_data s3c2412_serial_drv_data = {
#endif
#if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2416) || \
defined(CONFIG_CPU_S3C2443)
defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2442)
static struct s3c24xx_serial_drv_data s3c2440_serial_drv_data = {
.info = &(struct s3c24xx_uart_info) {
.name = "Samsung S3C2440 UART",

1
drivers/tty/serial/serial_core.c
View File

@ -2230,7 +2230,6 @@ int uart_register_driver(struct uart_driver *drv)
drv->tty_driver = normal;
normal->owner = drv->owner;
normal->driver_name = drv->driver_name;
normal->name = drv->dev_name;
normal->major = drv->major;

4
drivers/tty/serial/sn_console.c
View File

@ -461,12 +461,12 @@ sn_receive_chars(struct sn_cons_port *port, unsigned long flags)
struct tty_struct *tty;
if (!port) {
printk(KERN_ERR "sn_receive_chars - port NULL so can't receieve\n");
printk(KERN_ERR "sn_receive_chars - port NULL so can't receive\n");
return;
}
if (!port->sc_ops) {
printk(KERN_ERR "sn_receive_chars - port->sc_ops NULL so can't receieve\n");
printk(KERN_ERR "sn_receive_chars - port->sc_ops NULL so can't receive\n");
return;
}

2
drivers/tty/serial/suncore.c
View File

@ -17,11 +17,11 @@
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/serial_core.h>
#include <linux/sunserialcore.h>
#include <linux/init.h>
#include <asm/prom.h>
#include "suncore.h"
static int sunserial_current_minor = 64;

3
drivers/tty/serial/sunhv.c
View File

@ -29,8 +29,7 @@
#endif
#include <linux/serial_core.h>
#include "suncore.h"
#include <linux/sunserialcore.h>
#define CON_BREAK ((long)-1)
#define CON_HUP ((long)-2)

2
drivers/tty/serial/sunsab.c
View File

@ -43,8 +43,8 @@
#endif
#include <linux/serial_core.h>
#include <linux/sunserialcore.h>
#include "suncore.h"
#include "sunsab.h"
struct uart_sunsab_port {

3
drivers/tty/serial/sunsu.c
View File

@ -47,8 +47,7 @@
#endif
#include <linux/serial_core.h>
#include "suncore.h"
#include <linux/sunserialcore.h>
/* We are on a NS PC87303 clocked with 24.0 MHz, which results
* in a UART clock of 1.8462 MHz.

12
drivers/tty/serial/sunzilog.c
View File

@ -43,8 +43,8 @@
#endif
#include <linux/serial_core.h>
#include <linux/sunserialcore.h>
#include "suncore.h"
#include "sunzilog.h"
/* On 32-bit sparcs we need to delay after register accesses
@ -1397,7 +1397,7 @@ static void __devinit sunzilog_init_hw(struct uart_sunzilog_port *up)
#endif
}
static int zilog_irq = -1;
static int zilog_irq;
static int __devinit zs_probe(struct platform_device *op)
{
@ -1425,7 +1425,7 @@ static int __devinit zs_probe(struct platform_device *op)
rp = sunzilog_chip_regs[inst];
if (zilog_irq == -1)
if (!zilog_irq)
zilog_irq = op->archdata.irqs[0];
up = &sunzilog_port_table[inst * 2];
@ -1580,7 +1580,7 @@ static int __init sunzilog_init(void)
if (err)
goto out_unregister_uart;
if (zilog_irq != -1) {
if (!zilog_irq) {
struct uart_sunzilog_port *up = sunzilog_irq_chain;
err = request_irq(zilog_irq, sunzilog_interrupt, IRQF_SHARED,
"zs", sunzilog_irq_chain);
@ -1621,7 +1621,7 @@ static void __exit sunzilog_exit(void)
{
platform_driver_unregister(&zs_driver);
if (zilog_irq != -1) {
if (!zilog_irq) {
struct uart_sunzilog_port *up = sunzilog_irq_chain;
/* Disable Interrupts */
@ -1637,7 +1637,7 @@ static void __exit sunzilog_exit(void)
}
free_irq(zilog_irq, sunzilog_irq_chain);
zilog_irq = -1;
zilog_irq = 0;
}
if (sunzilog_reg.nr) {

2
drivers/tty/serial/ucc_uart.c
View File

@ -1360,7 +1360,7 @@ static int ucc_uart_probe(struct platform_device *ofdev)
}
qe_port->port.irq = irq_of_parse_and_map(np, 0);
if (qe_port->port.irq == NO_IRQ) {
if (qe_port->port.irq == 0) {
dev_err(&ofdev->dev, "could not map IRQ for UCC%u\n",
qe_port->ucc_num + 1);
ret = -EINVAL;

4
drivers/tty/serial/vr41xx_siu.c
View File

@ -61,7 +61,7 @@
static struct uart_port siu_uart_ports[SIU_PORTS_MAX] = {
[0 ... SIU_PORTS_MAX-1] = {
.lock = __SPIN_LOCK_UNLOCKED(siu_uart_ports->lock),
.irq = -1,
.irq = 0,
},
};
@ -171,7 +171,7 @@ static inline unsigned int siu_check_type(struct uart_port *port)
{
if (port->line == 0)
return PORT_VR41XX_SIU;
if (port->line == 1 && port->irq != -1)
if (port->line == 1 && port->irq)
return PORT_VR41XX_DSIU;
return PORT_UNKNOWN;

4
drivers/tty/serial/vt8500_serial.c
View File

@ -544,7 +544,7 @@ static struct uart_driver vt8500_uart_driver = {
.cons = VT8500_CONSOLE,
};
static int __init vt8500_serial_probe(struct platform_device *pdev)
static int __devinit vt8500_serial_probe(struct platform_device *pdev)
{
struct vt8500_port *vt8500_port;
struct resource *mmres, *irqres;
@ -605,7 +605,7 @@ static int __devexit vt8500_serial_remove(struct platform_device *pdev)
static struct platform_driver vt8500_platform_driver = {
.probe = vt8500_serial_probe,
.remove = vt8500_serial_remove,
.remove = __devexit_p(vt8500_serial_remove),
.driver = {
.name = "vt8500_serial",
.owner = THIS_MODULE,

3
drivers/tty/synclink.c
View File

@ -3381,7 +3381,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
/* verify range of specified line number */
line = tty->index;
if ((line < 0) || (line >= mgsl_device_count)) {
if (line >= mgsl_device_count) {
printk("%s(%d):mgsl_open with invalid line #%d.\n",
__FILE__,__LINE__,line);
return -ENODEV;
@ -4333,7 +4333,6 @@ static int mgsl_init_tty(void)
if (!serial_driver)
return -ENOMEM;
serial_driver->owner = THIS_MODULE;
serial_driver->driver_name = "synclink";
serial_driver->name = "ttySL";
serial_driver->major = ttymajor;

3
drivers/tty/synclink_gt.c
View File

@ -654,7 +654,7 @@ static int open(struct tty_struct *tty, struct file *filp)
unsigned long flags;
line = tty->index;
if ((line < 0) || (line >= slgt_device_count)) {
if (line >= slgt_device_count) {
DBGERR(("%s: open with invalid line #%d.\n", driver_name, line));
return -ENODEV;
}
@ -3795,7 +3795,6 @@ static int __init slgt_init(void)
/* Initialize the tty_driver structure */
serial_driver->owner = THIS_MODULE;
serial_driver->driver_name = tty_driver_name;
serial_driver->name = tty_dev_prefix;
serial_driver->major = ttymajor;

3
drivers/tty/synclinkmp.c
View File

@ -721,7 +721,7 @@ static int open(struct tty_struct *tty, struct file *filp)
unsigned long flags;
line = tty->index;
if ((line < 0) || (line >= synclinkmp_device_count)) {
if (line >= synclinkmp_device_count) {
printk("%s(%d): open with invalid line #%d.\n",
__FILE__,__LINE__,line);
return -ENODEV;
@ -3977,7 +3977,6 @@ static int __init synclinkmp_init(void)
/* Initialize the tty_driver structure */
serial_driver->owner = THIS_MODULE;
serial_driver->driver_name = "synclinkmp";
serial_driver->name = "ttySLM";
serial_driver->major = ttymajor;

17
drivers/tty/sysrq.c
View File

@ -110,11 +110,9 @@ static struct sysrq_key_op sysrq_SAK_op = {
#ifdef CONFIG_VT
static void sysrq_handle_unraw(int key)
{
struct kbd_struct *kbd = &kbd_table[fg_console];
if (kbd)
kbd->kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE;
vt_reset_unicode(fg_console);
}
static struct sysrq_key_op sysrq_unraw_op = {
.handler = sysrq_handle_unraw,
.help_msg = "unRaw",
@ -322,11 +320,16 @@ static void send_sig_all(int sig)
{
struct task_struct *p;
read_lock(&tasklist_lock);
for_each_process(p) {
if (p->mm && !is_global_init(p))
/* Not swapper, init nor kernel thread */
force_sig(sig, p);
if (p->flags & PF_KTHREAD)
continue;
if (is_global_init(p))
continue;
force_sig(sig, p);
}
read_unlock(&tasklist_lock);
}
static void sysrq_handle_term(int key)

54
drivers/tty/tty_io.c
View File

@ -1230,13 +1230,10 @@ static void tty_line_name(struct tty_driver *driver, int index, char *p)
static struct tty_struct *tty_driver_lookup_tty(struct tty_driver *driver,
struct inode *inode, int idx)
{
struct tty_struct *tty;
if (driver->ops->lookup)
return driver->ops->lookup(driver, inode, idx);
tty = driver->ttys[idx];
return tty;
return driver->ttys[idx];
}
/**
@ -1271,6 +1268,19 @@ int tty_init_termios(struct tty_struct *tty)
}
EXPORT_SYMBOL_GPL(tty_init_termios);
int tty_standard_install(struct tty_driver *driver, struct tty_struct *tty)
{
int ret = tty_init_termios(tty);
if (ret)
return ret;
tty_driver_kref_get(driver);
tty->count++;
driver->ttys[tty->index] = tty;
return 0;
}
EXPORT_SYMBOL_GPL(tty_standard_install);
/**
* tty_driver_install_tty() - install a tty entry in the driver
* @driver: the driver for the tty
@ -1286,21 +1296,8 @@ EXPORT_SYMBOL_GPL(tty_init_termios);
static int tty_driver_install_tty(struct tty_driver *driver,
struct tty_struct *tty)
{
int idx = tty->index;
int ret;
if (driver->ops->install) {
ret = driver->ops->install(driver, tty);
return ret;
}
if (tty_init_termios(tty) == 0) {
tty_driver_kref_get(driver);
tty->count++;
driver->ttys[idx] = tty;
return 0;
}
return -ENOMEM;
return driver->ops->install ? driver->ops->install(driver, tty) :
tty_standard_install(driver, tty);
}
/**
@ -1351,7 +1348,6 @@ static int tty_reopen(struct tty_struct *tty)
tty->link->count++;
}
tty->count++;
tty->driver = driver; /* N.B. why do this every time?? */
mutex_lock(&tty->ldisc_mutex);
WARN_ON(!test_bit(TTY_LDISC, &tty->flags));
@ -1365,7 +1361,6 @@ static int tty_reopen(struct tty_struct *tty)
* @driver: tty driver we are opening a device on
* @idx: device index
* @ret_tty: returned tty structure
* @first_ok: ok to open a new device (used by ptmx)
*
* Prepare a tty device. This may not be a "new" clean device but
* could also be an active device. The pty drivers require special
@ -1385,18 +1380,11 @@ static int tty_reopen(struct tty_struct *tty)
* relaxed for the (most common) case of reopening a tty.
*/
struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx,
int first_ok)
struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx)
{
struct tty_struct *tty;
int retval;
/* Check if pty master is being opened multiple times */
if (driver->subtype == PTY_TYPE_MASTER &&
(driver->flags & TTY_DRIVER_DEVPTS_MEM) && !first_ok) {
return ERR_PTR(-EIO);
}
/*
* First time open is complex, especially for PTY devices.
* This code guarantees that either everything succeeds and the
@ -1950,7 +1938,7 @@ retry_open:
if (retval)
tty = ERR_PTR(retval);
} else
tty = tty_init_dev(driver, index, 0);
tty = tty_init_dev(driver, index);
mutex_unlock(&tty_mutex);
if (driver)
@ -2941,7 +2929,6 @@ void initialize_tty_struct(struct tty_struct *tty,
tty->session = NULL;
tty->pgrp = NULL;
tty->overrun_time = jiffies;
tty->buf.head = tty->buf.tail = NULL;
tty_buffer_init(tty);
mutex_init(&tty->termios_mutex);
mutex_init(&tty->ldisc_mutex);
@ -3058,7 +3045,7 @@ void tty_unregister_device(struct tty_driver *driver, unsigned index)
}
EXPORT_SYMBOL(tty_unregister_device);
struct tty_driver *alloc_tty_driver(int lines)
struct tty_driver *__alloc_tty_driver(int lines, struct module *owner)
{
struct tty_driver *driver;
@ -3067,11 +3054,12 @@ struct tty_driver *alloc_tty_driver(int lines)
kref_init(&driver->kref);
driver->magic = TTY_DRIVER_MAGIC;
driver->num = lines;
driver->owner = owner;
/* later we'll move allocation of tables here */
}
return driver;
}
EXPORT_SYMBOL(alloc_tty_driver);
EXPORT_SYMBOL(__alloc_tty_driver);
static void destruct_tty_driver(struct kref *kref)
{

51
drivers/tty/vt/consolemap.c
View File

@ -516,6 +516,7 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
int err = 0, err1, i;
struct uni_pagedir *p, *q;
/* Save original vc_unipagdir_loc in case we allocate a new one */
p = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc;
if (p->readonly) return -EIO;
@ -528,26 +529,57 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
err1 = con_clear_unimap(vc, NULL);
if (err1) return err1;
/*
* Since refcount was > 1, con_clear_unimap() allocated a
* a new uni_pagedir for this vc. Re: p != q
*/
q = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc;
for (i = 0, l = 0; i < 32; i++)
/*
* uni_pgdir is a 32*32*64 table with rows allocated
* when its first entry is added. The unicode value must
* still be incremented for empty rows. We are copying
* entries from "p" (old) to "q" (new).
*/
l = 0; /* unicode value */
for (i = 0; i < 32; i++)
if ((p1 = p->uni_pgdir[i]))
for (j = 0; j < 32; j++)
if ((p2 = p1[j]))
if ((p2 = p1[j])) {
for (k = 0; k < 64; k++, l++)
if (p2[k] != 0xffff) {
/*
* Found one, copy entry for unicode
* l with fontpos value p2[k].
*/
err1 = con_insert_unipair(q, l, p2[k]);
if (err1) {
p->refcount++;
*vc->vc_uni_pagedir_loc = (unsigned long)p;
con_release_unimap(q);
kfree(q);
return err1;
return err1;
}
}
p = q;
} else if (p == dflt)
}
} else {
/* Account for row of 64 empty entries */
l += 64;
}
else
/* Account for empty table */
l += 32 * 64;
/*
* Finished copying font table, set vc_uni_pagedir to new table
*/
p = q;
} else if (p == dflt) {
dflt = NULL;
}
/*
* Insert user specified unicode pairs into new table.
*/
while (ct--) {
unsigned short unicode, fontpos;
__get_user(unicode, &list->unicode);
@ -557,11 +589,14 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
list++;
}
/*
* Merge with fontmaps of any other virtual consoles.
*/
if (con_unify_unimap(vc, p))
return err;
for (i = 0; i <= 3; i++)
set_inverse_transl(vc, p, i); /* Update all inverse translations */
set_inverse_transl(vc, p, i); /* Update inverse translations */
set_inverse_trans_unicode(vc, p);
return err;

803
drivers/tty/vt/keyboard.c
View File

@ -41,6 +41,7 @@
#include <linux/reboot.h>
#include <linux/notifier.h>
#include <linux/jiffies.h>
#include <linux/uaccess.h>
#include <asm/irq_regs.h>
@ -55,8 +56,8 @@ extern void ctrl_alt_del(void);
/*
* Some laptops take the 789uiojklm,. keys as number pad when NumLock is on.
* This seems a good reason to start with NumLock off. On HIL keyboards
* of PARISC machines however there is no NumLock key and everyone expects the keypad
* to be used for numbers.
* of PARISC machines however there is no NumLock key and everyone expects the
* keypad to be used for numbers.
*/
#if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD))
@ -67,8 +68,6 @@ extern void ctrl_alt_del(void);
#define KBD_DEFLOCK 0
void compute_shiftstate(void);
/*
* Handler Tables.
*/
@ -99,35 +98,29 @@ static fn_handler_fn *fn_handler[] = { FN_HANDLERS };
* Variables exported for vt_ioctl.c
*/
/* maximum values each key_handler can handle */
const int max_vals[] = {
255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1,
NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1,
255, NR_LOCK - 1, 255, NR_BRL - 1
};
const int NR_TYPES = ARRAY_SIZE(max_vals);
struct kbd_struct kbd_table[MAX_NR_CONSOLES];
EXPORT_SYMBOL_GPL(kbd_table);
static struct kbd_struct *kbd = kbd_table;
struct vt_spawn_console vt_spawn_con = {
.lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock),
.pid = NULL,
.sig = 0,
};
/*
* Variables exported for vt.c
*/
int shift_state = 0;
/*
* Internal Data.
*/
static struct kbd_struct kbd_table[MAX_NR_CONSOLES];
static struct kbd_struct *kbd = kbd_table;
/* maximum values each key_handler can handle */
static const int max_vals[] = {
255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1,
NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1,
255, NR_LOCK - 1, 255, NR_BRL - 1
};
static const int NR_TYPES = ARRAY_SIZE(max_vals);
static struct input_handler kbd_handler;
static DEFINE_SPINLOCK(kbd_event_lock);
static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */
@ -137,6 +130,8 @@ static int npadch = -1; /* -1 or number assembled on pad */
static unsigned int diacr;
static char rep; /* flag telling character repeat */
static int shift_state = 0;
static unsigned char ledstate = 0xff; /* undefined */
static unsigned char ledioctl;
@ -187,7 +182,7 @@ static int getkeycode_helper(struct input_handle *handle, void *data)
return d->error == 0; /* stop as soon as we successfully get one */
}
int getkeycode(unsigned int scancode)
static int getkeycode(unsigned int scancode)
{
struct getset_keycode_data d = {
.ke = {
@ -214,7 +209,7 @@ static int setkeycode_helper(struct input_handle *handle, void *data)
return d->error == 0; /* stop as soon as we successfully set one */
}
int setkeycode(unsigned int scancode, unsigned int keycode)
static int setkeycode(unsigned int scancode, unsigned int keycode)
{
struct getset_keycode_data d = {
.ke = {
@ -382,9 +377,11 @@ static void to_utf8(struct vc_data *vc, uint c)
/*
* Called after returning from RAW mode or when changing consoles - recompute
* shift_down[] and shift_state from key_down[] maybe called when keymap is
* undefined, so that shiftkey release is seen
* undefined, so that shiftkey release is seen. The caller must hold the
* kbd_event_lock.
*/
void compute_shiftstate(void)
static void do_compute_shiftstate(void)
{
unsigned int i, j, k, sym, val;
@ -417,6 +414,15 @@ void compute_shiftstate(void)
}
}
/* We still have to export this method to vt.c */
void compute_shiftstate(void)
{
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
do_compute_shiftstate();
spin_unlock_irqrestore(&kbd_event_lock, flags);
}
/*
* We have a combining character DIACR here, followed by the character CH.
* If the combination occurs in the table, return the corresponding value.
@ -636,7 +642,7 @@ static void fn_SAK(struct vc_data *vc)
static void fn_null(struct vc_data *vc)
{
compute_shiftstate();
do_compute_shiftstate();
}
/*
@ -989,6 +995,8 @@ unsigned char getledstate(void)
void setledstate(struct kbd_struct *kbd, unsigned int led)
{
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
if (!(led & ~7)) {
ledioctl = led;
kbd->ledmode = LED_SHOW_IOCTL;
@ -996,6 +1004,7 @@ void setledstate(struct kbd_struct *kbd, unsigned int led)
kbd->ledmode = LED_SHOW_FLAGS;
set_leds();
spin_unlock_irqrestore(&kbd_event_lock, flags);
}
static inline unsigned char getleds(void)
@ -1035,6 +1044,75 @@ static int kbd_update_leds_helper(struct input_handle *handle, void *data)
return 0;
}
/**
* vt_get_leds - helper for braille console
* @console: console to read
* @flag: flag we want to check
*
* Check the status of a keyboard led flag and report it back
*/
int vt_get_leds(int console, int flag)
{
unsigned long flags;
struct kbd_struct * kbd = kbd_table + console;
int ret;
spin_lock_irqsave(&kbd_event_lock, flags);
ret = vc_kbd_led(kbd, flag);
spin_unlock_irqrestore(&kbd_event_lock, flags);
return ret;
}
EXPORT_SYMBOL_GPL(vt_get_leds);
/**
* vt_set_led_state - set LED state of a console
* @console: console to set
* @leds: LED bits
*
* Set the LEDs on a console. This is a wrapper for the VT layer
* so that we can keep kbd knowledge internal
*/
void vt_set_led_state(int console, int leds)
{
struct kbd_struct * kbd = kbd_table + console;
setledstate(kbd, leds);
}
/**
* vt_kbd_con_start - Keyboard side of console start
* @console: console
*
* Handle console start. This is a wrapper for the VT layer
* so that we can keep kbd knowledge internal
*/
void vt_kbd_con_start(int console)
{
struct kbd_struct * kbd = kbd_table + console;
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
clr_vc_kbd_led(kbd, VC_SCROLLOCK);
set_leds();
spin_unlock_irqrestore(&kbd_event_lock, flags);
}
/**
* vt_kbd_con_stop - Keyboard side of console stop
* @console: console
*
* Handle console stop. This is a wrapper for the VT layer
* so that we can keep kbd knowledge internal
*/
void vt_kbd_con_stop(int console)
{
struct kbd_struct * kbd = kbd_table + console;
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
set_vc_kbd_led(kbd, VC_SCROLLOCK);
set_leds();
spin_unlock_irqrestore(&kbd_event_lock, flags);
}
/*
* This is the tasklet that updates LED state on all keyboards
* attached to the box. The reason we use tasklet is that we
@ -1254,7 +1332,7 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
if (rc == NOTIFY_STOP || !key_map) {
atomic_notifier_call_chain(&keyboard_notifier_list,
KBD_UNBOUND_KEYCODE, &param);
compute_shiftstate();
do_compute_shiftstate();
kbd->slockstate = 0;
return;
}
@ -1404,14 +1482,14 @@ static void kbd_start(struct input_handle *handle)
static const struct input_device_id kbd_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
.evbit = { BIT_MASK(EV_KEY) },
},
.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
.evbit = { BIT_MASK(EV_KEY) },
},
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
.evbit = { BIT_MASK(EV_SND) },
},
.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
.evbit = { BIT_MASK(EV_SND) },
},
{ }, /* Terminating entry */
};
@ -1433,7 +1511,7 @@ int __init kbd_init(void)
int i;
int error;
for (i = 0; i < MAX_NR_CONSOLES; i++) {
for (i = 0; i < MAX_NR_CONSOLES; i++) {
kbd_table[i].ledflagstate = KBD_DEFLEDS;
kbd_table[i].default_ledflagstate = KBD_DEFLEDS;
kbd_table[i].ledmode = LED_SHOW_FLAGS;
@ -1452,3 +1530,658 @@ int __init kbd_init(void)
return 0;
}
/* Ioctl support code */
/**
* vt_do_diacrit - diacritical table updates
* @cmd: ioctl request
* @up: pointer to user data for ioctl
* @perm: permissions check computed by caller
*
* Update the diacritical tables atomically and safely. Lock them
* against simultaneous keypresses
*/
int vt_do_diacrit(unsigned int cmd, void __user *up, int perm)
{
struct kbdiacrs __user *a = up;
unsigned long flags;
int asize;
int ret = 0;
switch (cmd) {
case KDGKBDIACR:
{
struct kbdiacr *diacr;
int i;
diacr = kmalloc(MAX_DIACR * sizeof(struct kbdiacr),
GFP_KERNEL);
if (diacr == NULL)
return -ENOMEM;
/* Lock the diacriticals table, make a copy and then
copy it after we unlock */
spin_lock_irqsave(&kbd_event_lock, flags);
asize = accent_table_size;
for (i = 0; i < asize; i++) {
diacr[i].diacr = conv_uni_to_8bit(
accent_table[i].diacr);
diacr[i].base = conv_uni_to_8bit(
accent_table[i].base);
diacr[i].result = conv_uni_to_8bit(
accent_table[i].result);
}
spin_unlock_irqrestore(&kbd_event_lock, flags);
if (put_user(asize, &a->kb_cnt))
ret = -EFAULT;
else if (copy_to_user(a->kbdiacr, diacr,
asize * sizeof(struct kbdiacr)))
ret = -EFAULT;
kfree(diacr);
return ret;
}
case KDGKBDIACRUC:
{
struct kbdiacrsuc __user *a = up;
void *buf;
buf = kmalloc(MAX_DIACR * sizeof(struct kbdiacruc),
GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
/* Lock the diacriticals table, make a copy and then
copy it after we unlock */
spin_lock_irqsave(&kbd_event_lock, flags);
asize = accent_table_size;
memcpy(buf, accent_table, asize * sizeof(struct kbdiacruc));
spin_unlock_irqrestore(&kbd_event_lock, flags);
if (put_user(asize, &a->kb_cnt))
ret = -EFAULT;
else if (copy_to_user(a->kbdiacruc, buf,
asize*sizeof(struct kbdiacruc)))
ret = -EFAULT;
kfree(buf);
return ret;
}
case KDSKBDIACR:
{
struct kbdiacrs __user *a = up;
struct kbdiacr *diacr = NULL;
unsigned int ct;
int i;
if (!perm)
return -EPERM;
if (get_user(ct, &a->kb_cnt))
return -EFAULT;
if (ct >= MAX_DIACR)
return -EINVAL;
if (ct) {
diacr = kmalloc(sizeof(struct kbdiacr) * ct,
GFP_KERNEL);
if (diacr == NULL)
return -ENOMEM;
if (copy_from_user(diacr, a->kbdiacr,
sizeof(struct kbdiacr) * ct)) {
kfree(diacr);
return -EFAULT;
}
}
spin_lock_irqsave(&kbd_event_lock, flags);
accent_table_size = ct;
for (i = 0; i < ct; i++) {
accent_table[i].diacr =
conv_8bit_to_uni(diacr[i].diacr);
accent_table[i].base =
conv_8bit_to_uni(diacr[i].base);
accent_table[i].result =
conv_8bit_to_uni(diacr[i].result);
}
spin_unlock_irqrestore(&kbd_event_lock, flags);
kfree(diacr);
return 0;
}
case KDSKBDIACRUC:
{
struct kbdiacrsuc __user *a = up;
unsigned int ct;
void *buf = NULL;
if (!perm)
return -EPERM;
if (get_user(ct, &a->kb_cnt))
return -EFAULT;
if (ct >= MAX_DIACR)
return -EINVAL;
if (ct) {
buf = kmalloc(ct * sizeof(struct kbdiacruc),
GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
if (copy_from_user(buf, a->kbdiacruc,
ct * sizeof(struct kbdiacruc))) {
kfree(buf);
return -EFAULT;
}
}
spin_lock_irqsave(&kbd_event_lock, flags);
if (ct)
memcpy(accent_table, buf,
ct * sizeof(struct kbdiacruc));
accent_table_size = ct;
spin_unlock_irqrestore(&kbd_event_lock, flags);
kfree(buf);
return 0;
}
}
return ret;
}
/**
* vt_do_kdskbmode - set keyboard mode ioctl
* @console: the console to use
* @arg: the requested mode
*
* Update the keyboard mode bits while holding the correct locks.
* Return 0 for success or an error code.
*/
int vt_do_kdskbmode(int console, unsigned int arg)
{
struct kbd_struct * kbd = kbd_table + console;
int ret = 0;
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
switch(arg) {
case K_RAW:
kbd->kbdmode = VC_RAW;
break;
case K_MEDIUMRAW:
kbd->kbdmode = VC_MEDIUMRAW;
break;
case K_XLATE:
kbd->kbdmode = VC_XLATE;
do_compute_shiftstate();
break;
case K_UNICODE:
kbd->kbdmode = VC_UNICODE;
do_compute_shiftstate();
break;
case K_OFF:
kbd->kbdmode = VC_OFF;
break;
default:
ret = -EINVAL;
}
spin_unlock_irqrestore(&kbd_event_lock, flags);
return ret;
}
/**
* vt_do_kdskbmeta - set keyboard meta state
* @console: the console to use
* @arg: the requested meta state
*
* Update the keyboard meta bits while holding the correct locks.
* Return 0 for success or an error code.
*/
int vt_do_kdskbmeta(int console, unsigned int arg)
{
struct kbd_struct * kbd = kbd_table + console;
int ret = 0;
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
switch(arg) {
case K_METABIT:
clr_vc_kbd_mode(kbd, VC_META);
break;
case K_ESCPREFIX:
set_vc_kbd_mode(kbd, VC_META);
break;
default:
ret = -EINVAL;
}
spin_unlock_irqrestore(&kbd_event_lock, flags);
return ret;
}
int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc,
int perm)
{
struct kbkeycode tmp;
int kc = 0;
if (copy_from_user(&tmp, user_kbkc, sizeof(struct kbkeycode)))
return -EFAULT;
switch (cmd) {
case KDGETKEYCODE:
kc = getkeycode(tmp.scancode);
if (kc >= 0)
kc = put_user(kc, &user_kbkc->keycode);
break;
case KDSETKEYCODE:
if (!perm)
return -EPERM;
kc = setkeycode(tmp.scancode, tmp.keycode);
break;
}
return kc;
}
#define i (tmp.kb_index)
#define s (tmp.kb_table)
#define v (tmp.kb_value)
int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
int console)
{
struct kbd_struct * kbd = kbd_table + console;
struct kbentry tmp;
ushort *key_map, *new_map, val, ov;
unsigned long flags;
if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
return -EFAULT;
if (!capable(CAP_SYS_TTY_CONFIG))
perm = 0;
switch (cmd) {
case KDGKBENT:
/* Ensure another thread doesn't free it under us */
spin_lock_irqsave(&kbd_event_lock, flags);
key_map = key_maps[s];
if (key_map) {
val = U(key_map[i]);
if (kbd->kbdmode != VC_UNICODE && KTYP(val) >= NR_TYPES)
val = K_HOLE;
} else
val = (i ? K_HOLE : K_NOSUCHMAP);
spin_unlock_irqrestore(&kbd_event_lock, flags);
return put_user(val, &user_kbe->kb_value);
case KDSKBENT:
if (!perm)
return -EPERM;
if (!i && v == K_NOSUCHMAP) {
spin_lock_irqsave(&kbd_event_lock, flags);
/* deallocate map */
key_map = key_maps[s];
if (s && key_map) {
key_maps[s] = NULL;
if (key_map[0] == U(K_ALLOCATED)) {
kfree(key_map);
keymap_count--;
}
}
spin_unlock_irqrestore(&kbd_event_lock, flags);
break;
}
if (KTYP(v) < NR_TYPES) {
if (KVAL(v) > max_vals[KTYP(v)])
return -EINVAL;
} else
if (kbd->kbdmode != VC_UNICODE)
return -EINVAL;
/* ++Geert: non-PC keyboards may generate keycode zero */
#if !defined(__mc68000__) && !defined(__powerpc__)
/* assignment to entry 0 only tests validity of args */
if (!i)
break;
#endif
new_map = kmalloc(sizeof(plain_map), GFP_KERNEL);
if (!new_map)
return -ENOMEM;
spin_lock_irqsave(&kbd_event_lock, flags);
key_map = key_maps[s];
if (key_map == NULL) {
int j;
if (keymap_count >= MAX_NR_OF_USER_KEYMAPS &&
!capable(CAP_SYS_RESOURCE)) {
spin_unlock_irqrestore(&kbd_event_lock, flags);
kfree(new_map);
return -EPERM;
}
key_maps[s] = new_map;
key_map = new_map;
key_map[0] = U(K_ALLOCATED);
for (j = 1; j < NR_KEYS; j++)
key_map[j] = U(K_HOLE);
keymap_count++;
} else
kfree(new_map);
ov = U(key_map[i]);
if (v == ov)
goto out;
/*
* Attention Key.
*/
if (((ov == K_SAK) || (v == K_SAK)) && !capable(CAP_SYS_ADMIN)) {
spin_unlock_irqrestore(&kbd_event_lock, flags);
return -EPERM;
}
key_map[i] = U(v);
if (!s && (KTYP(ov) == KT_SHIFT || KTYP(v) == KT_SHIFT))
do_compute_shiftstate();
out:
spin_unlock_irqrestore(&kbd_event_lock, flags);
break;
}
return 0;
}
#undef i
#undef s
#undef v
/* FIXME: This one needs untangling and locking */
int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
{
struct kbsentry *kbs;
char *p;
u_char *q;
u_char __user *up;
int sz;
int delta;
char *first_free, *fj, *fnw;
int i, j, k;
int ret;
if (!capable(CAP_SYS_TTY_CONFIG))
perm = 0;
kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
if (!kbs) {
ret = -ENOMEM;
goto reterr;
}
/* we mostly copy too much here (512bytes), but who cares ;) */
if (copy_from_user(kbs, user_kdgkb, sizeof(struct kbsentry))) {
ret = -EFAULT;
goto reterr;
}
kbs->kb_string[sizeof(kbs->kb_string)-1] = '\0';
i = kbs->kb_func;
switch (cmd) {
case KDGKBSENT:
sz = sizeof(kbs->kb_string) - 1; /* sz should have been
a struct member */
up = user_kdgkb->kb_string;
p = func_table[i];
if(p)
for ( ; *p && sz; p++, sz--)
if (put_user(*p, up++)) {
ret = -EFAULT;
goto reterr;
}
if (put_user('\0', up)) {
ret = -EFAULT;
goto reterr;
}
kfree(kbs);
return ((p && *p) ? -EOVERFLOW : 0);
case KDSKBSENT:
if (!perm) {
ret = -EPERM;
goto reterr;
}
q = func_table[i];
first_free = funcbufptr + (funcbufsize - funcbufleft);
for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++)
;
if (j < MAX_NR_FUNC)
fj = func_table[j];
else
fj = first_free;
delta = (q ? -strlen(q) : 1) + strlen(kbs->kb_string);
if (delta <= funcbufleft) { /* it fits in current buf */
if (j < MAX_NR_FUNC) {
memmove(fj + delta, fj, first_free - fj);
for (k = j; k < MAX_NR_FUNC; k++)
if (func_table[k])
func_table[k] += delta;
}
if (!q)
func_table[i] = fj;
funcbufleft -= delta;
} else { /* allocate a larger buffer */
sz = 256;
while (sz < funcbufsize - funcbufleft + delta)
sz <<= 1;
fnw = kmalloc(sz, GFP_KERNEL);
if(!fnw) {
ret = -ENOMEM;
goto reterr;
}
if (!q)
func_table[i] = fj;
if (fj > funcbufptr)
memmove(fnw, funcbufptr, fj - funcbufptr);
for (k = 0; k < j; k++)
if (func_table[k])
func_table[k] = fnw + (func_table[k] - funcbufptr);
if (first_free > fj) {
memmove(fnw + (fj - funcbufptr) + delta, fj, first_free - fj);
for (k = j; k < MAX_NR_FUNC; k++)
if (func_table[k])
func_table[k] = fnw + (func_table[k] - funcbufptr) + delta;
}
if (funcbufptr != func_buf)
kfree(funcbufptr);
funcbufptr = fnw;
funcbufleft = funcbufleft - delta + sz - funcbufsize;
funcbufsize = sz;
}
strcpy(func_table[i], kbs->kb_string);
break;
}
ret = 0;
reterr:
kfree(kbs);
return ret;
}
int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm)
{
struct kbd_struct * kbd = kbd_table + console;
unsigned long flags;
unsigned char ucval;
switch(cmd) {
/* the ioctls below read/set the flags usually shown in the leds */
/* don't use them - they will go away without warning */
case KDGKBLED:
spin_lock_irqsave(&kbd_event_lock, flags);
ucval = kbd->ledflagstate | (kbd->default_ledflagstate << 4);
spin_unlock_irqrestore(&kbd_event_lock, flags);
return put_user(ucval, (char __user *)arg);
case KDSKBLED:
if (!perm)
return -EPERM;
if (arg & ~0x77)
return -EINVAL;
spin_lock_irqsave(&kbd_event_lock, flags);
kbd->ledflagstate = (arg & 7);
kbd->default_ledflagstate = ((arg >> 4) & 7);
set_leds();
spin_unlock_irqrestore(&kbd_event_lock, flags);
break;
/* the ioctls below only set the lights, not the functions */
/* for those, see KDGKBLED and KDSKBLED above */
case KDGETLED:
ucval = getledstate();
return put_user(ucval, (char __user *)arg);
case KDSETLED:
if (!perm)
return -EPERM;
setledstate(kbd, arg);
return 0;
}
return -ENOIOCTLCMD;
}
int vt_do_kdgkbmode(int console)
{
struct kbd_struct * kbd = kbd_table + console;
/* This is a spot read so needs no locking */
switch (kbd->kbdmode) {
case VC_RAW:
return K_RAW;
case VC_MEDIUMRAW:
return K_MEDIUMRAW;
case VC_UNICODE:
return K_UNICODE;
case VC_OFF:
return K_OFF;
default:
return K_XLATE;
}
}
/**
* vt_do_kdgkbmeta - report meta status
* @console: console to report
*
* Report the meta flag status of this console
*/
int vt_do_kdgkbmeta(int console)
{
struct kbd_struct * kbd = kbd_table + console;
/* Again a spot read so no locking */
return vc_kbd_mode(kbd, VC_META) ? K_ESCPREFIX : K_METABIT;
}
/**
* vt_reset_unicode - reset the unicode status
* @console: console being reset
*
* Restore the unicode console state to its default
*/
void vt_reset_unicode(int console)
{
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
kbd_table[console].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE;
spin_unlock_irqrestore(&kbd_event_lock, flags);
}
/**
* vt_get_shiftstate - shift bit state
*
* Report the shift bits from the keyboard state. We have to export
* this to support some oddities in the vt layer.
*/
int vt_get_shift_state(void)
{
/* Don't lock as this is a transient report */
return shift_state;
}
/**
* vt_reset_keyboard - reset keyboard state
* @console: console to reset
*
* Reset the keyboard bits for a console as part of a general console
* reset event
*/
void vt_reset_keyboard(int console)
{
struct kbd_struct * kbd = kbd_table + console;
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
set_vc_kbd_mode(kbd, VC_REPEAT);
clr_vc_kbd_mode(kbd, VC_CKMODE);
clr_vc_kbd_mode(kbd, VC_APPLIC);
clr_vc_kbd_mode(kbd, VC_CRLF);
kbd->lockstate = 0;
kbd->slockstate = 0;
kbd->ledmode = LED_SHOW_FLAGS;
kbd->ledflagstate = kbd->default_ledflagstate;
/* do not do set_leds here because this causes an endless tasklet loop
when the keyboard hasn't been initialized yet */
spin_unlock_irqrestore(&kbd_event_lock, flags);
}
/**
* vt_get_kbd_mode_bit - read keyboard status bits
* @console: console to read from
* @bit: mode bit to read
*
* Report back a vt mode bit. We do this without locking so the
* caller must be sure that there are no synchronization needs
*/
int vt_get_kbd_mode_bit(int console, int bit)
{
struct kbd_struct * kbd = kbd_table + console;
return vc_kbd_mode(kbd, bit);
}
/**
* vt_set_kbd_mode_bit - read keyboard status bits
* @console: console to read from
* @bit: mode bit to read
*
* Set a vt mode bit. We do this without locking so the
* caller must be sure that there are no synchronization needs
*/
void vt_set_kbd_mode_bit(int console, int bit)
{
struct kbd_struct * kbd = kbd_table + console;
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
set_vc_kbd_mode(kbd, bit);
spin_unlock_irqrestore(&kbd_event_lock, flags);
}
/**
* vt_clr_kbd_mode_bit - read keyboard status bits
* @console: console to read from
* @bit: mode bit to read
*
* Report back a vt mode bit. We do this without locking so the
* caller must be sure that there are no synchronization needs
*/
void vt_clr_kbd_mode_bit(int console, int bit)
{
struct kbd_struct * kbd = kbd_table + console;
unsigned long flags;
spin_lock_irqsave(&kbd_event_lock, flags);
clr_vc_kbd_mode(kbd, bit);
spin_unlock_irqrestore(&kbd_event_lock, flags);
}

58
drivers/tty/vt/selection.c
View File

@ -30,6 +30,7 @@
extern void poke_blanked_console(void);
/* FIXME: all this needs locking */
/* Variables for selection control. */
/* Use a dynamic buffer, instead of static (Dec 1994) */
struct vc_data *sel_cons; /* must not be deallocated */
@ -61,10 +62,14 @@ sel_pos(int n)
use_unicode);
}
/* remove the current selection highlight, if any,
from the console holding the selection. */
void
clear_selection(void) {
/**
* clear_selection - remove current selection
*
* Remove the current selection highlight, if any from the console
* holding the selection. The caller must hold the console lock.
*/
void clear_selection(void)
{
highlight_pointer(-1); /* hide the pointer */
if (sel_start != -1) {
highlight(sel_start, sel_end);
@ -74,7 +79,7 @@ clear_selection(void) {
/*
* User settable table: what characters are to be considered alphabetic?
* 256 bits
* 256 bits. Locked by the console lock.
*/
static u32 inwordLut[8]={
0x00000000, /* control chars */
@ -91,10 +96,20 @@ static inline int inword(const u16 c) {
return c > 0xff || (( inwordLut[c>>5] >> (c & 0x1F) ) & 1);
}
/* set inwordLut contents. Invoked by ioctl(). */
/**
* set loadlut - load the LUT table
* @p: user table
*
* Load the LUT table from user space. The caller must hold the console
* lock. Make a temporary copy so a partial update doesn't make a mess.
*/
int sel_loadlut(char __user *p)
{
return copy_from_user(inwordLut, (u32 __user *)(p+4), 32) ? -EFAULT : 0;
u32 tmplut[8];
if (copy_from_user(tmplut, (u32 __user *)(p+4), 32))
return -EFAULT;
memcpy(inwordLut, tmplut, 32);
return 0;
}
/* does screen address p correspond to character at LH/RH edge of screen? */
@ -130,7 +145,16 @@ static int store_utf8(u16 c, char *p)
}
}
/* set the current selection. Invoked by ioctl() or by kernel code. */
/**
* set_selection - set the current selection.
* @sel: user selection info
* @tty: the console tty
*
* Invoked by the ioctl handle for the vt layer.
*
* The entire selection process is managed under the console_lock. It's
* a lot under the lock but its hardly a performance path
*/
int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *tty)
{
struct vc_data *vc = vc_cons[fg_console].d;
@ -138,7 +162,7 @@ int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *t
char *bp, *obp;
int i, ps, pe, multiplier;
u16 c;
struct kbd_struct *kbd = kbd_table + fg_console;
int mode;
poke_blanked_console();
@ -182,7 +206,11 @@ int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *t
clear_selection();
sel_cons = vc_cons[fg_console].d;
}
use_unicode = kbd && kbd->kbdmode == VC_UNICODE;
mode = vt_do_kdgkbmode(fg_console);
if (mode == K_UNICODE)
use_unicode = 1;
else
use_unicode = 0;
switch (sel_mode)
{
@ -302,7 +330,8 @@ int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *t
* queue of the tty associated with the current console.
* Invoked by ioctl().
*
* Locking: always called with BTM from vt_ioctl
* Locking: called without locks. Calls the ldisc wrongly with
* unsafe methods,
*/
int paste_selection(struct tty_struct *tty)
{
@ -317,13 +346,12 @@ int paste_selection(struct tty_struct *tty)
poke_blanked_console();
console_unlock();
/* FIXME: wtf is this supposed to achieve ? */
ld = tty_ldisc_ref(tty);
if (!ld) {
tty_unlock();
if (!ld)
ld = tty_ldisc_ref_wait(tty);
tty_lock();
}
/* FIXME: this is completely unsafe */
add_wait_queue(&vc->paste_wait, &wait);
while (sel_buffer && sel_buffer_lth > pasted) {
set_current_state(TASK_INTERRUPTIBLE);

4
drivers/tty/vt/vc_screen.c
View File

@ -608,10 +608,10 @@ vcs_open(struct inode *inode, struct file *filp)
unsigned int currcons = iminor(inode) & 127;
int ret = 0;
tty_lock();
console_lock();
if(currcons && !vc_cons_allocated(currcons-1))
ret = -ENXIO;
tty_unlock();
console_unlock();
return ret;
}

66
drivers/tty/vt/vt.c
View File

@ -1028,9 +1028,9 @@ void vc_deallocate(unsigned int currcons)
* VT102 emulator
*/
#define set_kbd(vc, x) set_vc_kbd_mode(kbd_table + (vc)->vc_num, (x))
#define clr_kbd(vc, x) clr_vc_kbd_mode(kbd_table + (vc)->vc_num, (x))
#define is_kbd(vc, x) vc_kbd_mode(kbd_table + (vc)->vc_num, (x))
#define set_kbd(vc, x) vt_set_kbd_mode_bit((vc)->vc_num, (x))
#define clr_kbd(vc, x) vt_clr_kbd_mode_bit((vc)->vc_num, (x))
#define is_kbd(vc, x) vt_get_kbd_mode_bit((vc)->vc_num, (x))
#define decarm VC_REPEAT
#define decckm VC_CKMODE
@ -1652,16 +1652,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear)
vc->vc_deccm = global_cursor_default;
vc->vc_decim = 0;
set_kbd(vc, decarm);
clr_kbd(vc, decckm);
clr_kbd(vc, kbdapplic);
clr_kbd(vc, lnm);
kbd_table[vc->vc_num].lockstate = 0;
kbd_table[vc->vc_num].slockstate = 0;
kbd_table[vc->vc_num].ledmode = LED_SHOW_FLAGS;
kbd_table[vc->vc_num].ledflagstate = kbd_table[vc->vc_num].default_ledflagstate;
/* do not do set_leds here because this causes an endless tasklet loop
when the keyboard hasn't been initialized yet */
vt_reset_keyboard(vc->vc_num);
vc->vc_cursor_type = cur_default;
vc->vc_complement_mask = vc->vc_s_complement_mask;
@ -1979,7 +1970,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
case 'q': /* DECLL - but only 3 leds */
/* map 0,1,2,3 to 0,1,2,4 */
if (vc->vc_par[0] < 4)
setledstate(kbd_table + vc->vc_num,
vt_set_led_state(vc->vc_num,
(vc->vc_par[0] < 3) ? vc->vc_par[0] : 4);
return;
case 'r':
@ -2632,7 +2623,9 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
console_unlock();
break;
case TIOCL_SELLOADLUT:
console_lock();
ret = sel_loadlut(p);
console_unlock();
break;
case TIOCL_GETSHIFTSTATE:
@ -2642,15 +2635,19 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
* kernel-internal variable; programs not closely
* related to the kernel should not use this.
*/
data = shift_state;
data = vt_get_shift_state();
ret = __put_user(data, p);
break;
case TIOCL_GETMOUSEREPORTING:
console_lock(); /* May be overkill */
data = mouse_reporting();
console_unlock();
ret = __put_user(data, p);
break;
case TIOCL_SETVESABLANK:
console_lock();
ret = set_vesa_blanking(p);
console_unlock();
break;
case TIOCL_GETKMSGREDIRECT:
data = vt_get_kmsg_redirect();
@ -2667,13 +2664,21 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
}
break;
case TIOCL_GETFGCONSOLE:
/* No locking needed as this is a transiently
correct return anyway if the caller hasn't
disabled switching */
ret = fg_console;
break;
case TIOCL_SCROLLCONSOLE:
if (get_user(lines, (s32 __user *)(p+4))) {
ret = -EFAULT;
} else {
/* Need the console lock here. Note that lots
of other calls need fixing before the lock
is actually useful ! */
console_lock();
scrollfront(vc_cons[fg_console].d, lines);
console_unlock();
ret = 0;
}
break;
@ -2753,8 +2758,7 @@ static void con_stop(struct tty_struct *tty)
console_num = tty->index;
if (!vc_cons_allocated(console_num))
return;
set_vc_kbd_led(kbd_table + console_num, VC_SCROLLOCK);
set_leds();
vt_kbd_con_stop(console_num);
}
/*
@ -2768,8 +2772,7 @@ static void con_start(struct tty_struct *tty)
console_num = tty->index;
if (!vc_cons_allocated(console_num))
return;
clr_vc_kbd_led(kbd_table + console_num, VC_SCROLLOCK);
set_leds();
vt_kbd_con_start(console_num);
}
static void con_flush_chars(struct tty_struct *tty)
@ -2991,7 +2994,7 @@ int __init vty_init(const struct file_operations *console_fops)
console_driver = alloc_tty_driver(MAX_NR_CONSOLES);
if (!console_driver)
panic("Couldn't allocate console driver\n");
console_driver->owner = THIS_MODULE;
console_driver->name = "tty";
console_driver->name_base = 1;
console_driver->major = TTY_MAJOR;
@ -3980,9 +3983,6 @@ static int con_font_get(struct vc_data *vc, struct console_font_op *op)
int rc = -EINVAL;
int c;
if (vc->vc_mode != KD_TEXT)
return -EINVAL;
if (op->data) {
font.data = kmalloc(max_font_size, GFP_KERNEL);
if (!font.data)
@ -3991,7 +3991,9 @@ static int con_font_get(struct vc_data *vc, struct console_font_op *op)
font.data = NULL;
console_lock();
if (vc->vc_sw->con_font_get)
if (vc->vc_mode != KD_TEXT)
rc = -EINVAL;
else if (vc->vc_sw->con_font_get)
rc = vc->vc_sw->con_font_get(vc, &font);
else
rc = -ENOSYS;
@ -4073,7 +4075,9 @@ static int con_font_set(struct vc_data *vc, struct console_font_op *op)
if (IS_ERR(font.data))
return PTR_ERR(font.data);
console_lock();
if (vc->vc_sw->con_font_set)
if (vc->vc_mode != KD_TEXT)
rc = -EINVAL;
else if (vc->vc_sw->con_font_set)
rc = vc->vc_sw->con_font_set(vc, &font, op->flags);
else
rc = -ENOSYS;
@ -4089,8 +4093,6 @@ static int con_font_default(struct vc_data *vc, struct console_font_op *op)
char *s = name;
int rc;
if (vc->vc_mode != KD_TEXT)
return -EINVAL;
if (!op->data)
s = NULL;
@ -4100,6 +4102,10 @@ static int con_font_default(struct vc_data *vc, struct console_font_op *op)
name[MAX_FONT_NAME - 1] = 0;
console_lock();
if (vc->vc_mode != KD_TEXT) {
console_unlock();
return -EINVAL;
}
if (vc->vc_sw->con_font_default)
rc = vc->vc_sw->con_font_default(vc, &font, s);
else
@ -4117,11 +4123,11 @@ static int con_font_copy(struct vc_data *vc, struct console_font_op *op)
int con = op->height;
int rc;
if (vc->vc_mode != KD_TEXT)
return -EINVAL;
console_lock();
if (!vc->vc_sw->con_font_copy)
if (vc->vc_mode != KD_TEXT)
rc = -EINVAL;
else if (!vc->vc_sw->con_font_copy)
rc = -ENOSYS;
else if (con < 0 || !vc_cons_allocated(con))
rc = -ENOTTY;

495
drivers/tty/vt/vt_ioctl.c
View File

@ -130,7 +130,7 @@ static void vt_event_wait(struct vt_event_wait *vw)
list_add(&vw->list, &vt_events);
spin_unlock_irqrestore(&vt_event_lock, flags);
/* Wait for it to pass */
wait_event_interruptible_tty(vt_event_waitqueue, vw->done);
wait_event_interruptible(vt_event_waitqueue, vw->done);
/* Dequeue it */
spin_lock_irqsave(&vt_event_lock, flags);
list_del(&vw->list);
@ -195,232 +195,7 @@ int vt_waitactive(int n)
#define GPLAST 0x3df
#define GPNUM (GPLAST - GPFIRST + 1)
#define i (tmp.kb_index)
#define s (tmp.kb_table)
#define v (tmp.kb_value)
static inline int
do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, struct kbd_struct *kbd)
{
struct kbentry tmp;
ushort *key_map, val, ov;
if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
return -EFAULT;
if (!capable(CAP_SYS_TTY_CONFIG))
perm = 0;
switch (cmd) {
case KDGKBENT:
key_map = key_maps[s];
if (key_map) {
val = U(key_map[i]);
if (kbd->kbdmode != VC_UNICODE && KTYP(val) >= NR_TYPES)
val = K_HOLE;
} else
val = (i ? K_HOLE : K_NOSUCHMAP);
return put_user(val, &user_kbe->kb_value);
case KDSKBENT:
if (!perm)
return -EPERM;
if (!i && v == K_NOSUCHMAP) {
/* deallocate map */
key_map = key_maps[s];
if (s && key_map) {
key_maps[s] = NULL;
if (key_map[0] == U(K_ALLOCATED)) {
kfree(key_map);
keymap_count--;
}
}
break;
}
if (KTYP(v) < NR_TYPES) {
if (KVAL(v) > max_vals[KTYP(v)])
return -EINVAL;
} else
if (kbd->kbdmode != VC_UNICODE)
return -EINVAL;
/* ++Geert: non-PC keyboards may generate keycode zero */
#if !defined(__mc68000__) && !defined(__powerpc__)
/* assignment to entry 0 only tests validity of args */
if (!i)
break;
#endif
if (!(key_map = key_maps[s])) {
int j;
if (keymap_count >= MAX_NR_OF_USER_KEYMAPS &&
!capable(CAP_SYS_RESOURCE))
return -EPERM;
key_map = kmalloc(sizeof(plain_map),
GFP_KERNEL);
if (!key_map)
return -ENOMEM;
key_maps[s] = key_map;
key_map[0] = U(K_ALLOCATED);
for (j = 1; j < NR_KEYS; j++)
key_map[j] = U(K_HOLE);
keymap_count++;
}
ov = U(key_map[i]);
if (v == ov)
break; /* nothing to do */
/*
* Attention Key.
*/
if (((ov == K_SAK) || (v == K_SAK)) && !capable(CAP_SYS_ADMIN))
return -EPERM;
key_map[i] = U(v);
if (!s && (KTYP(ov) == KT_SHIFT || KTYP(v) == KT_SHIFT))
compute_shiftstate();
break;
}
return 0;
}
#undef i
#undef s
#undef v
static inline int
do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc, int perm)
{
struct kbkeycode tmp;
int kc = 0;
if (copy_from_user(&tmp, user_kbkc, sizeof(struct kbkeycode)))
return -EFAULT;
switch (cmd) {
case KDGETKEYCODE:
kc = getkeycode(tmp.scancode);
if (kc >= 0)
kc = put_user(kc, &user_kbkc->keycode);
break;
case KDSETKEYCODE:
if (!perm)
return -EPERM;
kc = setkeycode(tmp.scancode, tmp.keycode);
break;
}
return kc;
}
static inline int
do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
{
struct kbsentry *kbs;
char *p;
u_char *q;
u_char __user *up;
int sz;
int delta;
char *first_free, *fj, *fnw;
int i, j, k;
int ret;
if (!capable(CAP_SYS_TTY_CONFIG))
perm = 0;
kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
if (!kbs) {
ret = -ENOMEM;
goto reterr;
}
/* we mostly copy too much here (512bytes), but who cares ;) */
if (copy_from_user(kbs, user_kdgkb, sizeof(struct kbsentry))) {
ret = -EFAULT;
goto reterr;
}
kbs->kb_string[sizeof(kbs->kb_string)-1] = '\0';
i = kbs->kb_func;
switch (cmd) {
case KDGKBSENT:
sz = sizeof(kbs->kb_string) - 1; /* sz should have been
a struct member */
up = user_kdgkb->kb_string;
p = func_table[i];
if(p)
for ( ; *p && sz; p++, sz--)
if (put_user(*p, up++)) {
ret = -EFAULT;
goto reterr;
}
if (put_user('\0', up)) {
ret = -EFAULT;
goto reterr;
}
kfree(kbs);
return ((p && *p) ? -EOVERFLOW : 0);
case KDSKBSENT:
if (!perm) {
ret = -EPERM;
goto reterr;
}
q = func_table[i];
first_free = funcbufptr + (funcbufsize - funcbufleft);
for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++)
;
if (j < MAX_NR_FUNC)
fj = func_table[j];
else
fj = first_free;
delta = (q ? -strlen(q) : 1) + strlen(kbs->kb_string);
if (delta <= funcbufleft) { /* it fits in current buf */
if (j < MAX_NR_FUNC) {
memmove(fj + delta, fj, first_free - fj);
for (k = j; k < MAX_NR_FUNC; k++)
if (func_table[k])
func_table[k] += delta;
}
if (!q)
func_table[i] = fj;
funcbufleft -= delta;
} else { /* allocate a larger buffer */
sz = 256;
while (sz < funcbufsize - funcbufleft + delta)
sz <<= 1;
fnw = kmalloc(sz, GFP_KERNEL);
if(!fnw) {
ret = -ENOMEM;
goto reterr;
}
if (!q)
func_table[i] = fj;
if (fj > funcbufptr)
memmove(fnw, funcbufptr, fj - funcbufptr);
for (k = 0; k < j; k++)
if (func_table[k])
func_table[k] = fnw + (func_table[k] - funcbufptr);
if (first_free > fj) {
memmove(fnw + (fj - funcbufptr) + delta, fj, first_free - fj);
for (k = j; k < MAX_NR_FUNC; k++)
if (func_table[k])
func_table[k] = fnw + (func_table[k] - funcbufptr) + delta;
}
if (funcbufptr != func_buf)
kfree(funcbufptr);
funcbufptr = fnw;
funcbufleft = funcbufleft - delta + sz - funcbufsize;
funcbufsize = sz;
}
strcpy(func_table[i], kbs->kb_string);
break;
}
ret = 0;
reterr:
kfree(kbs);
return ret;
}
static inline int
do_fontx_ioctl(int cmd, struct consolefontdesc __user *user_cfd, int perm, struct console_font_op *op)
@ -497,7 +272,6 @@ int vt_ioctl(struct tty_struct *tty,
{
struct vc_data *vc = tty->driver_data;
struct console_font_op op; /* used in multiple places here */
struct kbd_struct * kbd;
unsigned int console;
unsigned char ucval;
unsigned int uival;
@ -507,7 +281,6 @@ int vt_ioctl(struct tty_struct *tty,
console = vc->vc_num;
tty_lock();
if (!vc_cons_allocated(console)) { /* impossible? */
ret = -ENOIOCTLCMD;
@ -523,19 +296,18 @@ int vt_ioctl(struct tty_struct *tty,
if (current->signal->tty == tty || capable(CAP_SYS_TTY_CONFIG))
perm = 1;
kbd = kbd_table + console;
switch (cmd) {
case TIOCLINUX:
ret = tioclinux(tty, arg);
break;
case KIOCSOUND:
if (!perm)
goto eperm;
return -EPERM;
/*
* The use of PIT_TICK_RATE is historic, it used to be
* the platform-dependent CLOCK_TICK_RATE between 2.6.12
* and 2.6.36, which was a minor but unfortunate ABI
* change.
* change. kd_mksound is locked by the input layer.
*/
if (arg)
arg = PIT_TICK_RATE / arg;
@ -544,7 +316,7 @@ int vt_ioctl(struct tty_struct *tty,
case KDMKTONE:
if (!perm)
goto eperm;
return -EPERM;
{
unsigned int ticks, count;
@ -562,10 +334,11 @@ int vt_ioctl(struct tty_struct *tty,
case KDGKBTYPE:
/*
* this is naive.
* this is naïve.
*/
ucval = KB_101;
goto setchar;
ret = put_user(ucval, (char __user *)arg);
break;
/*
* These cannot be implemented on any machine that implements
@ -579,6 +352,8 @@ int vt_ioctl(struct tty_struct *tty,
/*
* KDADDIO and KDDELIO may be able to add ports beyond what
* we reject here, but to be safe...
*
* These are locked internally via sys_ioperm
*/
if (arg < GPFIRST || arg > GPLAST) {
ret = -EINVAL;
@ -601,7 +376,7 @@ int vt_ioctl(struct tty_struct *tty,
struct kbd_repeat kbrep;
if (!capable(CAP_SYS_TTY_CONFIG))
goto eperm;
return -EPERM;
if (copy_from_user(&kbrep, up, sizeof(struct kbd_repeat))) {
ret = -EFAULT;
@ -625,7 +400,7 @@ int vt_ioctl(struct tty_struct *tty,
* need to restore their engine state. --BenH
*/
if (!perm)
goto eperm;
return -EPERM;
switch (arg) {
case KD_GRAPHICS:
break;
@ -638,6 +413,7 @@ int vt_ioctl(struct tty_struct *tty,
ret = -EINVAL;
goto out;
}
/* FIXME: this needs the console lock extending */
if (vc->vc_mode == (unsigned char) arg)
break;
vc->vc_mode = (unsigned char) arg;
@ -669,69 +445,26 @@ int vt_ioctl(struct tty_struct *tty,
case KDSKBMODE:
if (!perm)
goto eperm;
switch(arg) {
case K_RAW:
kbd->kbdmode = VC_RAW;
break;
case K_MEDIUMRAW:
kbd->kbdmode = VC_MEDIUMRAW;
break;
case K_XLATE:
kbd->kbdmode = VC_XLATE;
compute_shiftstate();
break;
case K_UNICODE:
kbd->kbdmode = VC_UNICODE;
compute_shiftstate();
break;
case K_OFF:
kbd->kbdmode = VC_OFF;
break;
default:
ret = -EINVAL;
goto out;
}
tty_ldisc_flush(tty);
return -EPERM;
ret = vt_do_kdskbmode(console, arg);
if (ret == 0)
tty_ldisc_flush(tty);
break;
case KDGKBMODE:
switch (kbd->kbdmode) {
case VC_RAW:
uival = K_RAW;
break;
case VC_MEDIUMRAW:
uival = K_MEDIUMRAW;
break;
case VC_UNICODE:
uival = K_UNICODE;
break;
case VC_OFF:
uival = K_OFF;
break;
default:
uival = K_XLATE;
break;
}
goto setint;
uival = vt_do_kdgkbmode(console);
ret = put_user(uival, (int __user *)arg);
break;
/* this could be folded into KDSKBMODE, but for compatibility
reasons it is not so easy to fold KDGKBMETA into KDGKBMODE */
case KDSKBMETA:
switch(arg) {
case K_METABIT:
clr_vc_kbd_mode(kbd, VC_META);
break;
case K_ESCPREFIX:
set_vc_kbd_mode(kbd, VC_META);
break;
default:
ret = -EINVAL;
}
ret = vt_do_kdskbmeta(console, arg);
break;
case KDGKBMETA:
uival = (vc_kbd_mode(kbd, VC_META) ? K_ESCPREFIX : K_METABIT);
/* FIXME: should review whether this is worth locking */
uival = vt_do_kdgkbmeta(console);
setint:
ret = put_user(uival, (int __user *)arg);
break;
@ -740,133 +473,35 @@ int vt_ioctl(struct tty_struct *tty,
case KDSETKEYCODE:
if(!capable(CAP_SYS_TTY_CONFIG))
perm = 0;
ret = do_kbkeycode_ioctl(cmd, up, perm);
ret = vt_do_kbkeycode_ioctl(cmd, up, perm);
break;
case KDGKBENT:
case KDSKBENT:
ret = do_kdsk_ioctl(cmd, up, perm, kbd);
ret = vt_do_kdsk_ioctl(cmd, up, perm, console);
break;
case KDGKBSENT:
case KDSKBSENT:
ret = do_kdgkb_ioctl(cmd, up, perm);
ret = vt_do_kdgkb_ioctl(cmd, up, perm);
break;
/* Diacritical processing. Handled in keyboard.c as it has
to operate on the keyboard locks and structures */
case KDGKBDIACR:
{
struct kbdiacrs __user *a = up;
struct kbdiacr diacr;
int i;
if (put_user(accent_table_size, &a->kb_cnt)) {
ret = -EFAULT;
break;
}
for (i = 0; i < accent_table_size; i++) {
diacr.diacr = conv_uni_to_8bit(accent_table[i].diacr);
diacr.base = conv_uni_to_8bit(accent_table[i].base);
diacr.result = conv_uni_to_8bit(accent_table[i].result);
if (copy_to_user(a->kbdiacr + i, &diacr, sizeof(struct kbdiacr))) {
ret = -EFAULT;
break;
}
}
break;
}
case KDGKBDIACRUC:
{
struct kbdiacrsuc __user *a = up;
if (put_user(accent_table_size, &a->kb_cnt))
ret = -EFAULT;
else if (copy_to_user(a->kbdiacruc, accent_table,
accent_table_size*sizeof(struct kbdiacruc)))
ret = -EFAULT;
break;
}
case KDSKBDIACR:
{
struct kbdiacrs __user *a = up;
struct kbdiacr diacr;
unsigned int ct;
int i;
if (!perm)
goto eperm;
if (get_user(ct,&a->kb_cnt)) {
ret = -EFAULT;
break;
}
if (ct >= MAX_DIACR) {
ret = -EINVAL;
break;
}
accent_table_size = ct;
for (i = 0; i < ct; i++) {
if (copy_from_user(&diacr, a->kbdiacr + i, sizeof(struct kbdiacr))) {
ret = -EFAULT;
break;
}
accent_table[i].diacr = conv_8bit_to_uni(diacr.diacr);
accent_table[i].base = conv_8bit_to_uni(diacr.base);
accent_table[i].result = conv_8bit_to_uni(diacr.result);
}
break;
}
case KDSKBDIACRUC:
{
struct kbdiacrsuc __user *a = up;
unsigned int ct;
if (!perm)
goto eperm;
if (get_user(ct,&a->kb_cnt)) {
ret = -EFAULT;
break;
}
if (ct >= MAX_DIACR) {
ret = -EINVAL;
break;
}
accent_table_size = ct;
if (copy_from_user(accent_table, a->kbdiacruc, ct*sizeof(struct kbdiacruc)))
ret = -EFAULT;
ret = vt_do_diacrit(cmd, up, perm);
break;
}
/* the ioctls below read/set the flags usually shown in the leds */
/* don't use them - they will go away without warning */
case KDGKBLED:
ucval = kbd->ledflagstate | (kbd->default_ledflagstate << 4);
goto setchar;
case KDSKBLED:
if (!perm)
goto eperm;
if (arg & ~0x77) {
ret = -EINVAL;
break;
}
kbd->ledflagstate = (arg & 7);
kbd->default_ledflagstate = ((arg >> 4) & 7);
set_leds();
break;
/* the ioctls below only set the lights, not the functions */
/* for those, see KDGKBLED and KDSKBLED above */
case KDGETLED:
ucval = getledstate();
setchar:
ret = put_user(ucval, (char __user *)arg);
break;
case KDSETLED:
if (!perm)
goto eperm;
setledstate(kbd, arg);
ret = vt_do_kdskled(console, cmd, arg, perm);
break;
/*
@ -879,7 +514,7 @@ int vt_ioctl(struct tty_struct *tty,
case KDSIGACCEPT:
{
if (!perm || !capable(CAP_KILL))
goto eperm;
return -EPERM;
if (!valid_signal(arg) || arg < 1 || arg == SIGKILL)
ret = -EINVAL;
else {
@ -897,7 +532,7 @@ int vt_ioctl(struct tty_struct *tty,
struct vt_mode tmp;
if (!perm)
goto eperm;
return -EPERM;
if (copy_from_user(&tmp, up, sizeof(struct vt_mode))) {
ret = -EFAULT;
goto out;
@ -943,6 +578,7 @@ int vt_ioctl(struct tty_struct *tty,
struct vt_stat __user *vtstat = up;
unsigned short state, mask;
/* Review: FIXME: Console lock ? */
if (put_user(fg_console + 1, &vtstat->v_active))
ret = -EFAULT;
else {
@ -960,6 +596,7 @@ int vt_ioctl(struct tty_struct *tty,
* Returns the first available (non-opened) console.
*/
case VT_OPENQRY:
/* FIXME: locking ? - but then this is a stupid API */
for (i = 0; i < MAX_NR_CONSOLES; ++i)
if (! VT_IS_IN_USE(i))
break;
@ -973,7 +610,7 @@ int vt_ioctl(struct tty_struct *tty,
*/
case VT_ACTIVATE:
if (!perm)
goto eperm;
return -EPERM;
if (arg == 0 || arg > MAX_NR_CONSOLES)
ret = -ENXIO;
else {
@ -992,7 +629,7 @@ int vt_ioctl(struct tty_struct *tty,
struct vt_setactivate vsa;
if (!perm)
goto eperm;
return -EPERM;
if (copy_from_user(&vsa, (struct vt_setactivate __user *)arg,
sizeof(struct vt_setactivate))) {
@ -1020,6 +657,7 @@ int vt_ioctl(struct tty_struct *tty,
if (ret)
break;
/* Commence switch and lock */
/* Review set_console locks */
set_console(vsa.console);
}
break;
@ -1030,7 +668,7 @@ int vt_ioctl(struct tty_struct *tty,
*/
case VT_WAITACTIVE:
if (!perm)
goto eperm;
return -EPERM;
if (arg == 0 || arg > MAX_NR_CONSOLES)
ret = -ENXIO;
else
@ -1049,16 +687,17 @@ int vt_ioctl(struct tty_struct *tty,
*/
case VT_RELDISP:
if (!perm)
goto eperm;
return -EPERM;
console_lock();
if (vc->vt_mode.mode != VT_PROCESS) {
console_unlock();
ret = -EINVAL;
break;
}
/*
* Switching-from response
*/
console_lock();
if (vc->vt_newvt >= 0) {
if (arg == 0)
/*
@ -1135,7 +774,7 @@ int vt_ioctl(struct tty_struct *tty,
ushort ll,cc;
if (!perm)
goto eperm;
return -EPERM;
if (get_user(ll, &vtsizes->v_rows) ||
get_user(cc, &vtsizes->v_cols))
ret = -EFAULT;
@ -1146,6 +785,7 @@ int vt_ioctl(struct tty_struct *tty,
if (vc) {
vc->vc_resize_user = 1;
/* FIXME: review v tty lock */
vc_resize(vc_cons[i].d, cc, ll);
}
}
@ -1159,7 +799,7 @@ int vt_ioctl(struct tty_struct *tty,
struct vt_consize __user *vtconsize = up;
ushort ll,cc,vlin,clin,vcol,ccol;
if (!perm)
goto eperm;
return -EPERM;
if (!access_ok(VERIFY_READ, vtconsize,
sizeof(struct vt_consize))) {
ret = -EFAULT;
@ -1215,7 +855,7 @@ int vt_ioctl(struct tty_struct *tty,
case PIO_FONT: {
if (!perm)
goto eperm;
return -EPERM;
op.op = KD_FONT_OP_SET;
op.flags = KD_FONT_FLAG_OLD | KD_FONT_FLAG_DONT_RECALC; /* Compatibility */
op.width = 8;
@ -1256,7 +896,7 @@ int vt_ioctl(struct tty_struct *tty,
case PIO_FONTRESET:
{
if (!perm)
goto eperm;
return -EPERM;
#ifdef BROKEN_GRAPHICS_PROGRAMS
/* With BROKEN_GRAPHICS_PROGRAMS defined, the default
@ -1282,7 +922,7 @@ int vt_ioctl(struct tty_struct *tty,
break;
}
if (!perm && op.op != KD_FONT_OP_GET)
goto eperm;
return -EPERM;
ret = con_font_op(vc, &op);
if (ret)
break;
@ -1294,50 +934,65 @@ int vt_ioctl(struct tty_struct *tty,
case PIO_SCRNMAP:
if (!perm)
ret = -EPERM;
else
else {
tty_lock();
ret = con_set_trans_old(up);
tty_unlock();
}
break;
case GIO_SCRNMAP:
tty_lock();
ret = con_get_trans_old(up);
tty_unlock();
break;
case PIO_UNISCRNMAP:
if (!perm)
ret = -EPERM;
else
else {
tty_lock();
ret = con_set_trans_new(up);
tty_unlock();
}
break;
case GIO_UNISCRNMAP:
tty_lock();
ret = con_get_trans_new(up);
tty_unlock();
break;
case PIO_UNIMAPCLR:
{ struct unimapinit ui;
if (!perm)
goto eperm;
return -EPERM;
ret = copy_from_user(&ui, up, sizeof(struct unimapinit));
if (ret)
ret = -EFAULT;
else
else {
tty_lock();
con_clear_unimap(vc, &ui);
tty_unlock();
}
break;
}
case PIO_UNIMAP:
case GIO_UNIMAP:
tty_lock();
ret = do_unimap_ioctl(cmd, up, perm, vc);
tty_unlock();
break;
case VT_LOCKSWITCH:
if (!capable(CAP_SYS_TTY_CONFIG))
goto eperm;
return -EPERM;
vt_dont_switch = 1;
break;
case VT_UNLOCKSWITCH:
if (!capable(CAP_SYS_TTY_CONFIG))
goto eperm;
return -EPERM;
vt_dont_switch = 0;
break;
case VT_GETHIFONTMASK:
@ -1351,17 +1006,13 @@ int vt_ioctl(struct tty_struct *tty,
ret = -ENOIOCTLCMD;
}
out:
tty_unlock();
return ret;
eperm:
ret = -EPERM;
goto out;
}
void reset_vc(struct vc_data *vc)
{
vc->vc_mode = KD_TEXT;
kbd_table[vc->vc_num].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE;
vt_reset_unicode(vc->vc_num);
vc->vt_mode.mode = VT_AUTO;
vc->vt_mode.waitv = 0;
vc->vt_mode.relsig = 0;
@ -1384,6 +1035,7 @@ void vc_SAK(struct work_struct *work)
console_lock();
vc = vc_con->d;
if (vc) {
/* FIXME: review tty ref counting */
tty = vc->port.tty;
/*
* SAK should also work in all raw modes and reset
@ -1516,8 +1168,6 @@ long vt_compat_ioctl(struct tty_struct *tty,
console = vc->vc_num;
tty_lock();
if (!vc_cons_allocated(console)) { /* impossible? */
ret = -ENOIOCTLCMD;
goto out;
@ -1546,7 +1196,9 @@ long vt_compat_ioctl(struct tty_struct *tty,
case PIO_UNIMAP:
case GIO_UNIMAP:
tty_lock();
ret = compat_unimap_ioctl(cmd, up, perm, vc);
tty_unlock();
break;
/*
@ -1583,11 +1235,9 @@ long vt_compat_ioctl(struct tty_struct *tty,
goto fallback;
}
out:
tty_unlock();
return ret;
fallback:
tty_unlock();
return vt_ioctl(tty, cmd, arg);
}
@ -1773,13 +1423,10 @@ int vt_move_to_console(unsigned int vt, int alloc)
return -EIO;
}
console_unlock();
tty_lock();
if (vt_waitactive(vt + 1)) {
pr_debug("Suspend: Can't switch VCs.");
tty_unlock();
return -EINTR;
}
tty_unlock();
return prev;
}

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