#include <linux/fcntl.h>
#include <linux/major.h>
#include <linux/init.h>
+#include <linux/delay.h>
#include <asm/uaccess.h>
*/
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))
break;
}
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);
}
out: restore_flags(flags);
}
-static int rc_write(struct tty_struct * tty, int from_user,
+static int rc_write(struct tty_struct * tty,
const unsigned char *buf, int count)
{
struct riscom_port *port = (struct riscom_port *)tty->driver_data;
return 0;
save_flags(flags);
- if (from_user) {
- down(&tmp_buf_sem);
- 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)
- break;
-
- c -= copy_from_user(tmp_buf, buf, c);
- if (!c) {
- if (!total)
- total = -EFAULT;
- break;
- }
-
- cli();
- c = min_t(int, 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_t(int, 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();