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path: root/drivers/isdn/i4l/isdn_tty.c
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Diffstat (limited to 'drivers/isdn/i4l/isdn_tty.c')
-rw-r--r--drivers/isdn/i4l/isdn_tty.c75
1 files changed, 36 insertions, 39 deletions
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 8c404b4e2482..f190a99604f0 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -64,37 +64,42 @@ isdn_tty_try_read(modem_info * info, struct sk_buff *skb)
int c;
int len;
struct tty_struct *tty;
+ char last;
if (info->online) {
if ((tty = info->tty)) {
if (info->mcr & UART_MCR_RTS) {
- c = TTY_FLIPBUF_SIZE - tty->flip.count;
len = skb->len
#ifdef CONFIG_ISDN_AUDIO
+ ISDN_AUDIO_SKB_DLECOUNT(skb)
#endif
;
+
+ c = tty_buffer_request_room(tty, len);
if (c >= len) {
#ifdef CONFIG_ISDN_AUDIO
- if (ISDN_AUDIO_SKB_DLECOUNT(skb))
- while (skb->len--) {
+ if (ISDN_AUDIO_SKB_DLECOUNT(skb)) {
+ int l = skb->len;
+ unsigned char *dp = skb->data;
+ while (--l) {
if (*skb->data == DLE)
tty_insert_flip_char(tty, DLE, 0);
- tty_insert_flip_char(tty, *skb->data++, 0);
+ tty_insert_flip_char(tty, *dp++, 0);
+ }
+ last = *dp;
} else {
#endif
- memcpy(tty->flip.char_buf_ptr,
- skb->data, len);
- tty->flip.count += len;
- tty->flip.char_buf_ptr += len;
- memset(tty->flip.flag_buf_ptr, 0, len);
- tty->flip.flag_buf_ptr += len;
+ if(len > 1)
+ tty_insert_flip_string(tty, skb->data, len - 1);
+ last = skb->data[len - 1];
#ifdef CONFIG_ISDN_AUDIO
}
#endif
if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP)
- tty->flip.flag_buf_ptr[len - 1] = 0xff;
- schedule_delayed_work(&tty->flip.work, 1);
+ tty_insert_flip_char(tty, last, 0xFF);
+ else
+ tty_insert_flip_char(tty, last, TTY_NORMAL);
+ tty_flip_buffer_push(tty);
kfree_skb(skb);
return 1;
}
@@ -114,7 +119,6 @@ isdn_tty_readmodem(void)
int resched = 0;
int midx;
int i;
- int c;
int r;
struct tty_struct *tty;
modem_info *info;
@@ -131,20 +135,13 @@ isdn_tty_readmodem(void)
#endif
if ((tty = info->tty)) {
if (info->mcr & UART_MCR_RTS) {
- c = TTY_FLIPBUF_SIZE - tty->flip.count;
- if (c > 0) {
- r = isdn_readbchan(info->isdn_driver, info->isdn_channel,
- tty->flip.char_buf_ptr,
- tty->flip.flag_buf_ptr, c, NULL);
- /* CISCO AsyncPPP Hack */
- if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP))
- memset(tty->flip.flag_buf_ptr, 0, r);
- tty->flip.count += r;
- tty->flip.flag_buf_ptr += r;
- tty->flip.char_buf_ptr += r;
- if (r)
- schedule_delayed_work(&tty->flip.work, 1);
- }
+ /* CISCO AsyncPPP Hack */
+ if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP))
+ r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, tty, 0);
+ else
+ r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, tty, 1);
+ if (r)
+ tty_flip_buffer_push(tty);
} else
r = 1;
} else
@@ -249,7 +246,7 @@ isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb)
}
#endif
#endif
- /* Try to deliver directly via tty-flip-buf if queue is empty */
+ /* Try to deliver directly via tty-buf if queue is empty */
spin_lock_irqsave(&info->readlock, flags);
if (skb_queue_empty(&dev->drv[di]->rpqueue[channel]))
if (isdn_tty_try_read(info, skb)) {
@@ -534,7 +531,7 @@ isdn_tty_senddown(modem_info * info)
/* The next routine is called once from within timer-interrupt
* triggered within isdn_tty_modem_ncarrier(). It calls
* isdn_tty_modem_result() to stuff a "NO CARRIER" Message
- * into the tty's flip-buffer.
+ * into the tty's buffer.
*/
static void
isdn_tty_modem_do_ncarrier(unsigned long data)
@@ -2347,6 +2344,7 @@ isdn_tty_at_cout(char *msg, modem_info * info)
u_long flags;
struct sk_buff *skb = NULL;
char *sp = NULL;
+ int l = strlen(msg);
if (!msg) {
printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n");
@@ -2359,16 +2357,16 @@ isdn_tty_at_cout(char *msg, modem_info * info)
return;
}
- /* use queue instead of direct flip, if online and */
- /* data is in queue or flip buffer is full */
- if ((info->online) && (((tty->flip.count + strlen(msg)) >= TTY_FLIPBUF_SIZE) ||
- (!skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel])))) {
- skb = alloc_skb(strlen(msg), GFP_ATOMIC);
+ /* use queue instead of direct, if online and */
+ /* data is in queue or buffer is full */
+ if ((info->online && tty_buffer_request_room(tty, l) < l) ||
+ (!skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) {
+ skb = alloc_skb(l, GFP_ATOMIC);
if (!skb) {
spin_unlock_irqrestore(&info->readlock, flags);
return;
}
- sp = skb_put(skb, strlen(msg));
+ sp = skb_put(skb, l);
#ifdef CONFIG_ISDN_AUDIO
ISDN_AUDIO_SKB_DLECOUNT(skb) = 0;
ISDN_AUDIO_SKB_LOCK(skb) = 0;
@@ -2392,9 +2390,8 @@ isdn_tty_at_cout(char *msg, modem_info * info)
if (skb) {
*sp++ = c;
} else {
- if (tty->flip.count >= TTY_FLIPBUF_SIZE)
+ if(tty_insert_flip_char(tty, c, TTY_NORMAL) == 0)
break;
- tty_insert_flip_char(tty, c, 0);
}
}
if (skb) {
@@ -2402,12 +2399,12 @@ isdn_tty_at_cout(char *msg, modem_info * info)
dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len;
spin_unlock_irqrestore(&info->readlock, flags);
/* Schedule dequeuing */
- if ((dev->modempoll) && (info->rcvsched))
+ if (dev->modempoll && info->rcvsched)
isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1);
} else {
spin_unlock_irqrestore(&info->readlock, flags);
- schedule_delayed_work(&tty->flip.work, 1);
+ tty_flip_buffer_push(tty);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 07:37:44 +0100