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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)
64 int c; 64 int c;
65 int len; 65 int len;
66 struct tty_struct *tty; 66 struct tty_struct *tty;
67 char last;
67 68
68 if (info->online) { 69 if (info->online) {
69 if ((tty = info->tty)) { 70 if ((tty = info->tty)) {
70 if (info->mcr & UART_MCR_RTS) { 71 if (info->mcr & UART_MCR_RTS) {
71 c = TTY_FLIPBUF_SIZE - tty->flip.count;
72 len = skb->len 72 len = skb->len
73#ifdef CONFIG_ISDN_AUDIO 73#ifdef CONFIG_ISDN_AUDIO
74 + ISDN_AUDIO_SKB_DLECOUNT(skb) 74 + ISDN_AUDIO_SKB_DLECOUNT(skb)
75#endif 75#endif
76 ; 76 ;
77
78 c = tty_buffer_request_room(tty, len);
77 if (c >= len) { 79 if (c >= len) {
78#ifdef CONFIG_ISDN_AUDIO 80#ifdef CONFIG_ISDN_AUDIO
79 if (ISDN_AUDIO_SKB_DLECOUNT(skb)) 81 if (ISDN_AUDIO_SKB_DLECOUNT(skb)) {
80 while (skb->len--) { 82 int l = skb->len;
83 unsigned char *dp = skb->data;
84 while (--l) {
81 if (*skb->data == DLE) 85 if (*skb->data == DLE)
82 tty_insert_flip_char(tty, DLE, 0); 86 tty_insert_flip_char(tty, DLE, 0);
83 tty_insert_flip_char(tty, *skb->data++, 0); 87 tty_insert_flip_char(tty, *dp++, 0);
88 }
89 last = *dp;
84 } else { 90 } else {
85#endif 91#endif
86 memcpy(tty->flip.char_buf_ptr, 92 if(len > 1)
87 skb->data, len); 93 tty_insert_flip_string(tty, skb->data, len - 1);
88 tty->flip.count += len; 94 last = skb->data[len - 1];
89 tty->flip.char_buf_ptr += len;
90 memset(tty->flip.flag_buf_ptr, 0, len);
91 tty->flip.flag_buf_ptr += len;
92#ifdef CONFIG_ISDN_AUDIO 95#ifdef CONFIG_ISDN_AUDIO
93 } 96 }
94#endif 97#endif
95 if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP) 98 if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP)
96 tty->flip.flag_buf_ptr[len - 1] = 0xff; 99 tty_insert_flip_char(tty, last, 0xFF);
97 schedule_delayed_work(&tty->flip.work, 1); 100 else
101 tty_insert_flip_char(tty, last, TTY_NORMAL);
102 tty_flip_buffer_push(tty);
98 kfree_skb(skb); 103 kfree_skb(skb);
99 return 1; 104 return 1;
100 } 105 }
@@ -114,7 +119,6 @@ isdn_tty_readmodem(void)
114 int resched = 0; 119 int resched = 0;
115 int midx; 120 int midx;
116 int i; 121 int i;
117 int c;
118 int r; 122 int r;
119 struct tty_struct *tty; 123 struct tty_struct *tty;
120 modem_info *info; 124 modem_info *info;
@@ -131,20 +135,13 @@ isdn_tty_readmodem(void)
131#endif 135#endif
132 if ((tty = info->tty)) { 136 if ((tty = info->tty)) {
133 if (info->mcr & UART_MCR_RTS) { 137 if (info->mcr & UART_MCR_RTS) {
134 c = TTY_FLIPBUF_SIZE - tty->flip.count; 138 /* CISCO AsyncPPP Hack */
135 if (c > 0) { 139 if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP))
136 r = isdn_readbchan(info->isdn_driver, info->isdn_channel, 140 r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, tty, 0);
137 tty->flip.char_buf_ptr, 141 else
138 tty->flip.flag_buf_ptr, c, NULL); 142 r = isdn_readbchan_tty(info->isdn_driver, info->isdn_channel, tty, 1);
139 /* CISCO AsyncPPP Hack */ 143 if (r)
140 if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP)) 144 tty_flip_buffer_push(tty);
141 memset(tty->flip.flag_buf_ptr, 0, r);
142 tty->flip.count += r;
143 tty->flip.flag_buf_ptr += r;
144 tty->flip.char_buf_ptr += r;
145 if (r)
146 schedule_delayed_work(&tty->flip.work, 1);
147 }
148 } else 145 } else
149 r = 1; 146 r = 1;
150 } else 147 } else
@@ -249,7 +246,7 @@ isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb)
249 } 246 }
250#endif 247#endif
251#endif 248#endif
252 /* Try to deliver directly via tty-flip-buf if queue is empty */ 249 /* Try to deliver directly via tty-buf if queue is empty */
253 spin_lock_irqsave(&info->readlock, flags); 250 spin_lock_irqsave(&info->readlock, flags);
254 if (skb_queue_empty(&dev->drv[di]->rpqueue[channel])) 251 if (skb_queue_empty(&dev->drv[di]->rpqueue[channel]))
255 if (isdn_tty_try_read(info, skb)) { 252 if (isdn_tty_try_read(info, skb)) {
@@ -534,7 +531,7 @@ isdn_tty_senddown(modem_info * info)
534/* The next routine is called once from within timer-interrupt 531/* The next routine is called once from within timer-interrupt
535 * triggered within isdn_tty_modem_ncarrier(). It calls 532 * triggered within isdn_tty_modem_ncarrier(). It calls
536 * isdn_tty_modem_result() to stuff a "NO CARRIER" Message 533 * isdn_tty_modem_result() to stuff a "NO CARRIER" Message
537 * into the tty's flip-buffer. 534 * into the tty's buffer.
538 */ 535 */
539static void 536static void
540isdn_tty_modem_do_ncarrier(unsigned long data) 537isdn_tty_modem_do_ncarrier(unsigned long data)
@@ -2347,6 +2344,7 @@ isdn_tty_at_cout(char *msg, modem_info * info)
2347 u_long flags; 2344 u_long flags;
2348 struct sk_buff *skb = NULL; 2345 struct sk_buff *skb = NULL;
2349 char *sp = NULL; 2346 char *sp = NULL;
2347 int l = strlen(msg);
2350 2348
2351 if (!msg) { 2349 if (!msg) {
2352 printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n"); 2350 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)
2359 return; 2357 return;
2360 } 2358 }
2361 2359
2362 /* use queue instead of direct flip, if online and */ 2360 /* use queue instead of direct, if online and */
2363 /* data is in queue or flip buffer is full */ 2361 /* data is in queue or buffer is full */
2364 if ((info->online) && (((tty->flip.count + strlen(msg)) >= TTY_FLIPBUF_SIZE) || 2362 if ((info->online && tty_buffer_request_room(tty, l) < l) ||
2365 (!skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel])))) { 2363 (!skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) {
2366 skb = alloc_skb(strlen(msg), GFP_ATOMIC); 2364 skb = alloc_skb(l, GFP_ATOMIC);
2367 if (!skb) { 2365 if (!skb) {
2368 spin_unlock_irqrestore(&info->readlock, flags); 2366 spin_unlock_irqrestore(&info->readlock, flags);
2369 return; 2367 return;
2370 } 2368 }
2371 sp = skb_put(skb, strlen(msg)); 2369 sp = skb_put(skb, l);
2372#ifdef CONFIG_ISDN_AUDIO 2370#ifdef CONFIG_ISDN_AUDIO
2373 ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; 2371 ISDN_AUDIO_SKB_DLECOUNT(skb) = 0;
2374 ISDN_AUDIO_SKB_LOCK(skb) = 0; 2372 ISDN_AUDIO_SKB_LOCK(skb) = 0;
@@ -2392,9 +2390,8 @@ isdn_tty_at_cout(char *msg, modem_info * info)
2392 if (skb) { 2390 if (skb) {
2393 *sp++ = c; 2391 *sp++ = c;
2394 } else { 2392 } else {
2395 if (tty->flip.count >= TTY_FLIPBUF_SIZE) 2393 if(tty_insert_flip_char(tty, c, TTY_NORMAL) == 0)
2396 break; 2394 break;
2397 tty_insert_flip_char(tty, c, 0);
2398 } 2395 }
2399 } 2396 }
2400 if (skb) { 2397 if (skb) {
@@ -2402,12 +2399,12 @@ isdn_tty_at_cout(char *msg, modem_info * info)
2402 dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len; 2399 dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len;
2403 spin_unlock_irqrestore(&info->readlock, flags); 2400 spin_unlock_irqrestore(&info->readlock, flags);
2404 /* Schedule dequeuing */ 2401 /* Schedule dequeuing */
2405 if ((dev->modempoll) && (info->rcvsched)) 2402 if (dev->modempoll && info->rcvsched)
2406 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); 2403 isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1);
2407 2404
2408 } else { 2405 } else {
2409 spin_unlock_irqrestore(&info->readlock, flags); 2406 spin_unlock_irqrestore(&info->readlock, flags);
2410 schedule_delayed_work(&tty->flip.work, 1); 2407 tty_flip_buffer_push(tty);
2411 } 2408 }
2412} 2409}
2413 2410
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-23 17:26:13 -0400