/*
* There is a bunch of documentation about the card, jumpers, config
* settings, restrictions, cables, device names and numbers in
- * ../../Documentation/specialix.txt
+ * Documentation/specialix.txt
*/
#include <linux/config.h>
ASYNC_SPD_HI | ASYNC_SPEED_VHI | ASYNC_SESSION_LOCKOUT | \
ASYNC_PGRP_LOCKOUT | ASYNC_CALLOUT_NOHUP)
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
-
#undef RS_EVENT_WRITE_WAKEUP
#define RS_EVENT_WRITE_WAKEUP 0
};
static struct specialix_port sx_port[SX_NBOARD * SX_NPORT];
-
+
#ifdef SPECIALIX_TIMER
static struct timer_list missed_irq_timer;
sx_out(bp, CD186x_TDR, CD186x_C_SBRK);
port->COR2 &= ~COR2_ETC;
}
- count = MIN(port->break_length, 0xff);
+ count = min_t(int, port->break_length, 0xff);
sx_out(bp, CD186x_TDR, CD186x_C_ESC);
sx_out(bp, CD186x_TDR, CD186x_C_DELAY);
sx_out(bp, CD186x_TDR, count);
*/
timeout = jiffies+HZ;
while(port->IER & IER_TXEMPTY) {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(port->timeout);
+ msleep_interruptible(jiffies_to_msecs(port->timeout));
if (time_after(jiffies, timeout)) {
printk (KERN_INFO "Timeout waiting for close\n");
break;
sx_shutdown_port(bp, port);
if (tty->driver->flush_buffer)
tty->driver->flush_buffer(tty);
- if (tty->ldisc.flush_buffer)
- tty->ldisc.flush_buffer(tty);
+ tty_ldisc_flush(tty);
tty->closing = 0;
port->event = 0;
- port->tty = 0;
+ port->tty = NULL;
if (port->blocked_open) {
if (port->close_delay) {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(port->close_delay);
+ msleep_interruptible(jiffies_to_msecs(port->close_delay));
}
wake_up_interruptible(&port->open_wait);
}
}
-static int sx_write(struct tty_struct * tty, int from_user,
+static int sx_write(struct tty_struct * tty,
const unsigned char *buf, int count)
{
struct specialix_port *port = (struct specialix_port *)tty->driver_data;
return 0;
save_flags(flags);
- if (from_user) {
- down(&tmp_buf_sem);
- while (1) {
- c = MIN(count, MIN(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - port->xmit_head));
- if (c <= 0)
- break;
-
- c -= copy_from_user(tmp_buf, buf, c);
- if (!c) {
- if (!total)
- total = -EFAULT;
- break;
- }
-
- cli();
- c = MIN(c, MIN(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - port->xmit_head));
- memcpy(port->xmit_buf + port->xmit_head, tmp_buf, c);
- port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
- port->xmit_cnt += c;
+ while (1) {
+ cli();
+ c = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
+ SERIAL_XMIT_SIZE - port->xmit_head));
+ if (c <= 0) {
restore_flags(flags);
-
- buf += c;
- count -= c;
- total += c;
+ break;
}
- up(&tmp_buf_sem);
- } else {
- while (1) {
- cli();
- c = MIN(count, MIN(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - port->xmit_head));
- if (c <= 0) {
- restore_flags(flags);
- break;
- }
- memcpy(port->xmit_buf + port->xmit_head, buf, c);
- port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
- port->xmit_cnt += c;
- restore_flags(flags);
+ memcpy(port->xmit_buf + port->xmit_head, buf, c);
+ port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
+ port->xmit_cnt += c;
+ restore_flags(flags);
- buf += c;
- count -= c;
- total += c;
- }
+ buf += c;
+ count -= c;
+ total += c;
}
cli();
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
restore_flags(flags);
+ tty_wakeup(tty);
wake_up_interruptible(&tty->write_wait);
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- tty->ldisc.write_wakeup)
- (tty->ldisc.write_wakeup)(tty);
}
static inline int sx_set_serial_info(struct specialix_port * port,
- struct serial_struct * newinfo)
+ struct serial_struct __user * newinfo)
{
struct serial_struct tmp;
struct specialix_board *bp = port_Board(port);
int change_speed;
unsigned long flags;
- int error;
- error = verify_area(VERIFY_READ, (void *) newinfo, sizeof(tmp));
- if (error)
- return error;
-
if (copy_from_user(&tmp, newinfo, sizeof(tmp)))
return -EFAULT;
static inline int sx_get_serial_info(struct specialix_port * port,
- struct serial_struct * retinfo)
+ struct serial_struct __user *retinfo)
{
struct serial_struct tmp;
struct specialix_board *bp = port_Board(port);
- int error;
- error = verify_area(VERIFY_WRITE, (void *) retinfo, sizeof(tmp));
- if (error)
- return error;
-
memset(&tmp, 0, sizeof(tmp));
tmp.type = PORT_CIRRUS;
tmp.line = port - sx_port;
unsigned int cmd, unsigned long arg)
{
struct specialix_port *port = (struct specialix_port *)tty->driver_data;
- int error;
int retval;
+ void __user *argp = (void __user *)arg;
if (sx_paranoia_check(port, tty->name, "sx_ioctl"))
return -ENODEV;
sx_send_break(port, arg ? arg*(HZ/10) : HZ/4);
return 0;
case TIOCGSOFTCAR:
- error = verify_area(VERIFY_WRITE, (void *) arg, sizeof(long));
- if (error)
- return error;
- put_user(C_CLOCAL(tty) ? 1 : 0,
- (unsigned long *) arg);
+ if (put_user(C_CLOCAL(tty)?1:0, (unsigned long __user *)argp))
+ return -EFAULT;
return 0;
case TIOCSSOFTCAR:
- get_user(arg, (unsigned long *) arg);
+ if (get_user(arg, (unsigned long __user *) argp))
+ return -EFAULT;
tty->termios->c_cflag =
((tty->termios->c_cflag & ~CLOCAL) |
(arg ? CLOCAL : 0));
return 0;
case TIOCGSERIAL:
- return sx_get_serial_info(port, (struct serial_struct *) arg);
+ return sx_get_serial_info(port, argp);
case TIOCSSERIAL:
- return sx_set_serial_info(port, (struct serial_struct *) arg);
+ return sx_set_serial_info(port, argp);
default:
return -ENOIOCTLCMD;
}
port->event = 0;
port->count = 0;
port->flags &= ~ASYNC_NORMAL_ACTIVE;
- port->tty = 0;
+ port->tty = NULL;
wake_up_interruptible(&port->open_wait);
}
if(!(tty = port->tty))
return;
- if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &port->event)) {
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- tty->ldisc.write_wakeup)
- (tty->ldisc.write_wakeup)(tty);
- wake_up_interruptible(&tty->write_wait);
- }
+ if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &port->event))
+ tty_wakeup(tty);
}
static struct tty_operations sx_ops = {
int irq [SX_NBOARD] = {0,};
-MODULE_PARM(iobase,"1-" __MODULE_STRING(SX_NBOARD) "i");
-MODULE_PARM(irq,"1-" __MODULE_STRING(SX_NBOARD) "i");
+module_param_array(iobase, int, NULL, 0);
+module_param_array(irq, int, NULL, 0);
/*
* You can setup up to 4 boards.
git://git.onelab.eu / linux-2.6.git / blobdiff