diff options
Diffstat (limited to 'drivers/isdn/i4l/isdn_tty.c')
| -rw-r--r-- | drivers/isdn/i4l/isdn_tty.c | 71 |
1 files changed, 34 insertions, 37 deletions
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c index b817809f763..3c5f2491a16 100644 --- a/drivers/isdn/i4l/isdn_tty.c +++ b/drivers/isdn/i4l/isdn_tty.c @@ -60,18 +60,14 @@ static int si2bit[8] = static int isdn_tty_try_read(modem_info *info, struct sk_buff *skb) { + struct tty_port *port = &info->port; int c; int len; - struct tty_struct *tty; char last; if (!info->online) return 0; - tty = info->port.tty; - if (!tty) - return 0; - if (!(info->mcr & UART_MCR_RTS)) return 0; @@ -81,7 +77,7 @@ isdn_tty_try_read(modem_info *info, struct sk_buff *skb) #endif ; - c = tty_buffer_request_room(tty, len); + c = tty_buffer_request_room(port, len); if (c < len) return 0; @@ -91,25 +87,25 @@ isdn_tty_try_read(modem_info *info, struct sk_buff *skb) unsigned char *dp = skb->data; while (--l) { if (*dp == DLE) - tty_insert_flip_char(tty, DLE, 0); - tty_insert_flip_char(tty, *dp++, 0); + tty_insert_flip_char(port, DLE, 0); + tty_insert_flip_char(port, *dp++, 0); } if (*dp == DLE) - tty_insert_flip_char(tty, DLE, 0); + tty_insert_flip_char(port, DLE, 0); last = *dp; } else { #endif if (len > 1) - tty_insert_flip_string(tty, skb->data, len - 1); + tty_insert_flip_string(port, skb->data, len - 1); last = skb->data[len - 1]; #ifdef CONFIG_ISDN_AUDIO } #endif if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP) - tty_insert_flip_char(tty, last, 0xFF); + tty_insert_flip_char(port, last, 0xFF); else - tty_insert_flip_char(tty, last, TTY_NORMAL); - tty_flip_buffer_push(tty); + tty_insert_flip_char(port, last, TTY_NORMAL); + tty_flip_buffer_push(port); kfree_skb(skb); return 1; @@ -126,7 +122,6 @@ isdn_tty_readmodem(void) int midx; int i; int r; - struct tty_struct *tty; modem_info *info; for (i = 0; i < ISDN_MAX_CHANNELS; i++) { @@ -144,20 +139,21 @@ isdn_tty_readmodem(void) if ((info->vonline & 1) && (info->emu.vpar[1])) isdn_audio_eval_silence(info); #endif - tty = info->port.tty; - if (tty) { - if (info->mcr & UART_MCR_RTS) { - /* 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; + if (info->mcr & UART_MCR_RTS) { + /* CISCO AsyncPPP Hack */ + if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP)) + r = isdn_readbchan_tty(info->isdn_driver, + info->isdn_channel, + &info->port, 0); + else + r = isdn_readbchan_tty(info->isdn_driver, + info->isdn_channel, + &info->port, 1); + if (r) + tty_flip_buffer_push(&info->port); } else r = 1; + if (r) { info->rcvsched = 0; resched = 1; @@ -906,7 +902,9 @@ isdn_tty_send_msg(modem_info *info, atemu *m, char *msg) int j; int l; - l = strlen(msg); + l = min(strlen(msg), sizeof(cmd.parm) - sizeof(cmd.parm.cmsg) + + sizeof(cmd.parm.cmsg.para) - 2); + if (!l) { isdn_tty_modem_result(RESULT_ERROR, info); return; @@ -1474,9 +1472,6 @@ isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios) tty->termios.c_ospeed == old_termios->c_ospeed) return; isdn_tty_change_speed(info); - if ((old_termios->c_cflag & CRTSCTS) && - !(tty->termios.c_cflag & CRTSCTS)) - tty->hw_stopped = 0; } } @@ -1849,6 +1844,8 @@ err_unregister: kfree(info->fax); #endif kfree(info->port.xmit_buf - 4); + info->port.xmit_buf = NULL; + tty_port_destroy(&info->port); } tty_unregister_driver(m->tty_modem); err: @@ -1870,6 +1867,8 @@ isdn_tty_exit(void) kfree(info->fax); #endif kfree(info->port.xmit_buf - 4); + info->port.xmit_buf = NULL; + tty_port_destroy(&info->port); } tty_unregister_driver(dev->mdm.tty_modem); put_tty_driver(dev->mdm.tty_modem); @@ -2225,7 +2224,7 @@ isdn_tty_stat_callback(int i, isdn_ctrl *c) void isdn_tty_at_cout(char *msg, modem_info *info) { - struct tty_struct *tty; + struct tty_port *port = &info->port; atemu *m = &info->emu; char *p; char c; @@ -2242,15 +2241,14 @@ isdn_tty_at_cout(char *msg, modem_info *info) l = strlen(msg); spin_lock_irqsave(&info->readlock, flags); - tty = info->port.tty; - if ((info->port.flags & ASYNC_CLOSING) || (!tty)) { + if (port->flags & ASYNC_CLOSING) { spin_unlock_irqrestore(&info->readlock, flags); return; } /* 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) || + if (info->online && ((tty_buffer_request_room(port, l) < l) || !skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) { skb = alloc_skb(l, GFP_ATOMIC); if (!skb) { @@ -2281,7 +2279,7 @@ isdn_tty_at_cout(char *msg, modem_info *info) if (skb) { *sp++ = c; } else { - if (tty_insert_flip_char(tty, c, TTY_NORMAL) == 0) + if (tty_insert_flip_char(port, c, TTY_NORMAL) == 0) break; } } @@ -2295,7 +2293,7 @@ isdn_tty_at_cout(char *msg, modem_info *info) } else { spin_unlock_irqrestore(&info->readlock, flags); - tty_flip_buffer_push(tty); + tty_flip_buffer_push(port); } } @@ -3426,7 +3424,6 @@ isdn_tty_parse_at(modem_info *info) p++; isdn_tty_cmd_ATA(info); return; - break; case 'D': /* D - Dial */ if (info->msr & UART_MSR_DCD) |