| /* |
| * Linux ISDN subsystem, tty functions and AT-command emulator (linklevel). |
| * |
| * Copyright 1994-1999 by Fritz Elfert (fritz@isdn4linux.de) |
| * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg |
| * |
| * This software may be used and distributed according to the terms |
| * of the GNU General Public License, incorporated herein by reference. |
| * |
| */ |
| #undef ISDN_TTY_STAT_DEBUG |
| |
| #include <linux/isdn.h> |
| #include <linux/serial.h> /* ASYNC_* flags */ |
| #include <linux/slab.h> |
| #include <linux/delay.h> |
| #include <linux/mutex.h> |
| #include <linux/sched/signal.h> |
| #include "isdn_common.h" |
| #include "isdn_tty.h" |
| #ifdef CONFIG_ISDN_AUDIO |
| #include "isdn_audio.h" |
| #define VBUF 0x3e0 |
| #define VBUFX (VBUF/16) |
| #endif |
| |
| #define FIX_FILE_TRANSFER |
| #define DUMMY_HAYES_AT |
| |
| /* Prototypes */ |
| |
| static DEFINE_MUTEX(modem_info_mutex); |
| static int isdn_tty_edit_at(const char *, int, modem_info *); |
| static void isdn_tty_check_esc(const u_char *, u_char, int, int *, u_long *); |
| static void isdn_tty_modem_reset_regs(modem_info *, int); |
| static void isdn_tty_cmd_ATA(modem_info *); |
| static void isdn_tty_flush_buffer(struct tty_struct *); |
| static void isdn_tty_modem_result(int, modem_info *); |
| #ifdef CONFIG_ISDN_AUDIO |
| static int isdn_tty_countDLE(unsigned char *, int); |
| #endif |
| |
| /* Leave this unchanged unless you know what you do! */ |
| #define MODEM_PARANOIA_CHECK |
| #define MODEM_DO_RESTART |
| |
| static int bit2si[8] = |
| {1, 5, 7, 7, 7, 7, 7, 7}; |
| static int si2bit[8] = |
| {4, 1, 4, 4, 4, 4, 4, 4}; |
| |
| /* isdn_tty_try_read() is called from within isdn_tty_rcv_skb() |
| * to stuff incoming data directly into a tty's flip-buffer. This |
| * is done to speed up tty-receiving if the receive-queue is empty. |
| * This routine MUST be called with interrupts off. |
| * Return: |
| * 1 = Success |
| * 0 = Failure, data has to be buffered and later processed by |
| * isdn_tty_readmodem(). |
| */ |
| static int |
| isdn_tty_try_read(modem_info *info, struct sk_buff *skb) |
| { |
| struct tty_port *port = &info->port; |
| int c; |
| int len; |
| char last; |
| |
| if (!info->online) |
| return 0; |
| |
| if (!(info->mcr & UART_MCR_RTS)) |
| return 0; |
| |
| len = skb->len |
| #ifdef CONFIG_ISDN_AUDIO |
| + ISDN_AUDIO_SKB_DLECOUNT(skb) |
| #endif |
| ; |
| |
| c = tty_buffer_request_room(port, len); |
| if (c < len) |
| return 0; |
| |
| #ifdef CONFIG_ISDN_AUDIO |
| if (ISDN_AUDIO_SKB_DLECOUNT(skb)) { |
| int l = skb->len; |
| unsigned char *dp = skb->data; |
| while (--l) { |
| if (*dp == DLE) |
| tty_insert_flip_char(port, DLE, 0); |
| tty_insert_flip_char(port, *dp++, 0); |
| } |
| if (*dp == DLE) |
| tty_insert_flip_char(port, DLE, 0); |
| last = *dp; |
| } else { |
| #endif |
| if (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(port, last, 0xFF); |
| else |
| tty_insert_flip_char(port, last, TTY_NORMAL); |
| tty_flip_buffer_push(port); |
| kfree_skb(skb); |
| |
| return 1; |
| } |
| |
| /* isdn_tty_readmodem() is called periodically from within timer-interrupt. |
| * It tries getting received data from the receive queue an stuff it into |
| * the tty's flip-buffer. |
| */ |
| void |
| isdn_tty_readmodem(void) |
| { |
| int resched = 0; |
| int midx; |
| int i; |
| int r; |
| modem_info *info; |
| |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| midx = dev->m_idx[i]; |
| if (midx < 0) |
| continue; |
| |
| info = &dev->mdm.info[midx]; |
| if (!info->online) |
| continue; |
| |
| r = 0; |
| #ifdef CONFIG_ISDN_AUDIO |
| isdn_audio_eval_dtmf(info); |
| if ((info->vonline & 1) && (info->emu.vpar[1])) |
| isdn_audio_eval_silence(info); |
| #endif |
| 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; |
| } else |
| info->rcvsched = 1; |
| } |
| if (!resched) |
| isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 0); |
| } |
| |
| int |
| isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb) |
| { |
| ulong flags; |
| int midx; |
| #ifdef CONFIG_ISDN_AUDIO |
| int ifmt; |
| #endif |
| modem_info *info; |
| |
| if ((midx = dev->m_idx[i]) < 0) { |
| /* if midx is invalid, packet is not for tty */ |
| return 0; |
| } |
| info = &dev->mdm.info[midx]; |
| #ifdef CONFIG_ISDN_AUDIO |
| ifmt = 1; |
| |
| if ((info->vonline) && (!info->emu.vpar[4])) |
| isdn_audio_calc_dtmf(info, skb->data, skb->len, ifmt); |
| if ((info->vonline & 1) && (info->emu.vpar[1])) |
| isdn_audio_calc_silence(info, skb->data, skb->len, ifmt); |
| #endif |
| if ((info->online < 2) |
| #ifdef CONFIG_ISDN_AUDIO |
| && (!(info->vonline & 1)) |
| #endif |
| ) { |
| /* If Modem not listening, drop data */ |
| kfree_skb(skb); |
| return 1; |
| } |
| if (info->emu.mdmreg[REG_T70] & BIT_T70) { |
| if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) { |
| /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */ |
| if (skb->data[0] == 3) /* pure data packet -> 4 byte headers */ |
| skb_pull(skb, 4); |
| else |
| if (skb->data[0] == 1) /* keepalive packet -> 2 byte hdr */ |
| skb_pull(skb, 2); |
| } else |
| /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */ |
| if ((skb->data[0] == 1) && ((skb->data[1] == 0) || (skb->data[1] == 1))) |
| skb_pull(skb, 4); |
| } |
| #ifdef CONFIG_ISDN_AUDIO |
| ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; |
| ISDN_AUDIO_SKB_LOCK(skb) = 0; |
| if (info->vonline & 1) { |
| /* voice conversion/compression */ |
| switch (info->emu.vpar[3]) { |
| case 2: |
| case 3: |
| case 4: |
| /* adpcm |
| * Since compressed data takes less |
| * space, we can overwrite the buffer. |
| */ |
| skb_trim(skb, isdn_audio_xlaw2adpcm(info->adpcmr, |
| ifmt, |
| skb->data, |
| skb->data, |
| skb->len)); |
| break; |
| case 5: |
| /* a-law */ |
| if (!ifmt) |
| isdn_audio_ulaw2alaw(skb->data, skb->len); |
| break; |
| case 6: |
| /* u-law */ |
| if (ifmt) |
| isdn_audio_alaw2ulaw(skb->data, skb->len); |
| break; |
| } |
| ISDN_AUDIO_SKB_DLECOUNT(skb) = |
| isdn_tty_countDLE(skb->data, skb->len); |
| } |
| #ifdef CONFIG_ISDN_TTY_FAX |
| else { |
| if (info->faxonline & 2) { |
| isdn_tty_fax_bitorder(info, skb); |
| ISDN_AUDIO_SKB_DLECOUNT(skb) = |
| isdn_tty_countDLE(skb->data, skb->len); |
| } |
| } |
| #endif |
| #endif |
| /* 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)) { |
| spin_unlock_irqrestore(&info->readlock, flags); |
| return 1; |
| } |
| /* Direct deliver failed or queue wasn't empty. |
| * Queue up for later dequeueing via timer-irq. |
| */ |
| __skb_queue_tail(&dev->drv[di]->rpqueue[channel], skb); |
| dev->drv[di]->rcvcount[channel] += |
| (skb->len |
| #ifdef CONFIG_ISDN_AUDIO |
| + ISDN_AUDIO_SKB_DLECOUNT(skb) |
| #endif |
| ); |
| spin_unlock_irqrestore(&info->readlock, flags); |
| /* Schedule dequeuing */ |
| if ((dev->modempoll) && (info->rcvsched)) |
| isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); |
| return 1; |
| } |
| |
| static void |
| isdn_tty_cleanup_xmit(modem_info *info) |
| { |
| skb_queue_purge(&info->xmit_queue); |
| #ifdef CONFIG_ISDN_AUDIO |
| skb_queue_purge(&info->dtmf_queue); |
| #endif |
| } |
| |
| static void |
| isdn_tty_tint(modem_info *info) |
| { |
| struct sk_buff *skb = skb_dequeue(&info->xmit_queue); |
| int len, slen; |
| |
| if (!skb) |
| return; |
| len = skb->len; |
| if ((slen = isdn_writebuf_skb_stub(info->isdn_driver, |
| info->isdn_channel, 1, skb)) == len) { |
| struct tty_struct *tty = info->port.tty; |
| info->send_outstanding++; |
| info->msr &= ~UART_MSR_CTS; |
| info->lsr &= ~UART_LSR_TEMT; |
| tty_wakeup(tty); |
| return; |
| } |
| if (slen < 0) { |
| /* Error: no channel, already shutdown, or wrong parameter */ |
| dev_kfree_skb(skb); |
| return; |
| } |
| skb_queue_head(&info->xmit_queue, skb); |
| } |
| |
| #ifdef CONFIG_ISDN_AUDIO |
| static int |
| isdn_tty_countDLE(unsigned char *buf, int len) |
| { |
| int count = 0; |
| |
| while (len--) |
| if (*buf++ == DLE) |
| count++; |
| return count; |
| } |
| |
| /* This routine is called from within isdn_tty_write() to perform |
| * DLE-decoding when sending audio-data. |
| */ |
| static int |
| isdn_tty_handleDLEdown(modem_info *info, atemu *m, int len) |
| { |
| unsigned char *p = &info->port.xmit_buf[info->xmit_count]; |
| int count = 0; |
| |
| while (len > 0) { |
| if (m->lastDLE) { |
| m->lastDLE = 0; |
| switch (*p) { |
| case DLE: |
| /* Escape code */ |
| if (len > 1) |
| memmove(p, p + 1, len - 1); |
| p--; |
| count++; |
| break; |
| case ETX: |
| /* End of data */ |
| info->vonline |= 4; |
| return count; |
| case DC4: |
| /* Abort RX */ |
| info->vonline &= ~1; |
| #ifdef ISDN_DEBUG_MODEM_VOICE |
| printk(KERN_DEBUG |
| "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n", |
| info->line); |
| #endif |
| isdn_tty_at_cout("\020\003", info); |
| if (!info->vonline) { |
| #ifdef ISDN_DEBUG_MODEM_VOICE |
| printk(KERN_DEBUG |
| "DLEdown: send VCON on ttyI%d\n", |
| info->line); |
| #endif |
| isdn_tty_at_cout("\r\nVCON\r\n", info); |
| } |
| /* Fall through */ |
| case 'q': |
| case 's': |
| /* Silence */ |
| if (len > 1) |
| memmove(p, p + 1, len - 1); |
| p--; |
| break; |
| } |
| } else { |
| if (*p == DLE) |
| m->lastDLE = 1; |
| else |
| count++; |
| } |
| p++; |
| len--; |
| } |
| if (len < 0) { |
| printk(KERN_WARNING "isdn_tty: len<0 in DLEdown\n"); |
| return 0; |
| } |
| return count; |
| } |
| |
| /* This routine is called from within isdn_tty_write() when receiving |
| * audio-data. It interrupts receiving, if an character other than |
| * ^S or ^Q is sent. |
| */ |
| static int |
| isdn_tty_end_vrx(const char *buf, int c) |
| { |
| char ch; |
| |
| while (c--) { |
| ch = *buf; |
| if ((ch != 0x11) && (ch != 0x13)) |
| return 1; |
| buf++; |
| } |
| return 0; |
| } |
| |
| static int voice_cf[7] = |
| {0, 0, 4, 3, 2, 0, 0}; |
| |
| #endif /* CONFIG_ISDN_AUDIO */ |
| |
| /* isdn_tty_senddown() is called either directly from within isdn_tty_write() |
| * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls |
| * outgoing data from the tty's xmit-buffer, handles voice-decompression or |
| * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint. |
| */ |
| static void |
| isdn_tty_senddown(modem_info *info) |
| { |
| int buflen; |
| int skb_res; |
| #ifdef CONFIG_ISDN_AUDIO |
| int audio_len; |
| #endif |
| struct sk_buff *skb; |
| |
| #ifdef CONFIG_ISDN_AUDIO |
| if (info->vonline & 4) { |
| info->vonline &= ~6; |
| if (!info->vonline) { |
| #ifdef ISDN_DEBUG_MODEM_VOICE |
| printk(KERN_DEBUG |
| "senddown: send VCON on ttyI%d\n", |
| info->line); |
| #endif |
| isdn_tty_at_cout("\r\nVCON\r\n", info); |
| } |
| } |
| #endif |
| if (!(buflen = info->xmit_count)) |
| return; |
| if ((info->emu.mdmreg[REG_CTS] & BIT_CTS) != 0) |
| info->msr &= ~UART_MSR_CTS; |
| info->lsr &= ~UART_LSR_TEMT; |
| /* info->xmit_count is modified here and in isdn_tty_write(). |
| * So we return here if isdn_tty_write() is in the |
| * critical section. |
| */ |
| atomic_inc(&info->xmit_lock); |
| if (!(atomic_dec_and_test(&info->xmit_lock))) |
| return; |
| if (info->isdn_driver < 0) { |
| info->xmit_count = 0; |
| return; |
| } |
| skb_res = dev->drv[info->isdn_driver]->interface->hl_hdrlen + 4; |
| #ifdef CONFIG_ISDN_AUDIO |
| if (info->vonline & 2) |
| audio_len = buflen * voice_cf[info->emu.vpar[3]]; |
| else |
| audio_len = 0; |
| skb = dev_alloc_skb(skb_res + buflen + audio_len); |
| #else |
| skb = dev_alloc_skb(skb_res + buflen); |
| #endif |
| if (!skb) { |
| printk(KERN_WARNING |
| "isdn_tty: Out of memory in ttyI%d senddown\n", |
| info->line); |
| return; |
| } |
| skb_reserve(skb, skb_res); |
| skb_put_data(skb, info->port.xmit_buf, buflen); |
| info->xmit_count = 0; |
| #ifdef CONFIG_ISDN_AUDIO |
| if (info->vonline & 2) { |
| /* For now, ifmt is fixed to 1 (alaw), since this |
| * is used with ISDN everywhere in the world, except |
| * US, Canada and Japan. |
| * Later, when US-ISDN protocols are implemented, |
| * this setting will depend on the D-channel protocol. |
| */ |
| int ifmt = 1; |
| |
| /* voice conversion/decompression */ |
| switch (info->emu.vpar[3]) { |
| case 2: |
| case 3: |
| case 4: |
| /* adpcm, compatible to ZyXel 1496 modem |
| * with ROM revision 6.01 |
| */ |
| audio_len = isdn_audio_adpcm2xlaw(info->adpcms, |
| ifmt, |
| skb->data, |
| skb_put(skb, audio_len), |
| buflen); |
| skb_pull(skb, buflen); |
| skb_trim(skb, audio_len); |
| break; |
| case 5: |
| /* a-law */ |
| if (!ifmt) |
| isdn_audio_alaw2ulaw(skb->data, |
| buflen); |
| break; |
| case 6: |
| /* u-law */ |
| if (ifmt) |
| isdn_audio_ulaw2alaw(skb->data, |
| buflen); |
| break; |
| } |
| } |
| #endif /* CONFIG_ISDN_AUDIO */ |
| if (info->emu.mdmreg[REG_T70] & BIT_T70) { |
| /* Add T.70 simplified header */ |
| if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) |
| memcpy(skb_push(skb, 2), "\1\0", 2); |
| else |
| memcpy(skb_push(skb, 4), "\1\0\1\0", 4); |
| } |
| skb_queue_tail(&info->xmit_queue, skb); |
| } |
| |
| /************************************************************ |
| * |
| * Modem-functions |
| * |
| * mostly "stolen" from original Linux-serial.c and friends. |
| * |
| ************************************************************/ |
| |
| /* 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 buffer. |
| */ |
| static void |
| isdn_tty_modem_do_ncarrier(struct timer_list *t) |
| { |
| modem_info *info = from_timer(info, t, nc_timer); |
| isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| } |
| |
| /* Next routine is called, whenever the DTR-signal is raised. |
| * It checks the ncarrier-flag, and triggers the above routine |
| * when necessary. The ncarrier-flag is set, whenever DTR goes |
| * low. |
| */ |
| static void |
| isdn_tty_modem_ncarrier(modem_info *info) |
| { |
| if (info->ncarrier) { |
| info->nc_timer.expires = jiffies + HZ; |
| add_timer(&info->nc_timer); |
| } |
| } |
| |
| /* |
| * return the usage calculated by si and layer 2 protocol |
| */ |
| static int |
| isdn_calc_usage(int si, int l2) |
| { |
| int usg = ISDN_USAGE_MODEM; |
| |
| #ifdef CONFIG_ISDN_AUDIO |
| if (si == 1) { |
| switch (l2) { |
| case ISDN_PROTO_L2_MODEM: |
| usg = ISDN_USAGE_MODEM; |
| break; |
| #ifdef CONFIG_ISDN_TTY_FAX |
| case ISDN_PROTO_L2_FAX: |
| usg = ISDN_USAGE_FAX; |
| break; |
| #endif |
| case ISDN_PROTO_L2_TRANS: |
| default: |
| usg = ISDN_USAGE_VOICE; |
| break; |
| } |
| } |
| #endif |
| return (usg); |
| } |
| |
| /* isdn_tty_dial() performs dialing of a tty an the necessary |
| * setup of the lower levels before that. |
| */ |
| static void |
| isdn_tty_dial(char *n, modem_info *info, atemu *m) |
| { |
| int usg = ISDN_USAGE_MODEM; |
| int si = 7; |
| int l2 = m->mdmreg[REG_L2PROT]; |
| u_long flags; |
| isdn_ctrl cmd; |
| int i; |
| int j; |
| |
| for (j = 7; j >= 0; j--) |
| if (m->mdmreg[REG_SI1] & (1 << j)) { |
| si = bit2si[j]; |
| break; |
| } |
| usg = isdn_calc_usage(si, l2); |
| #ifdef CONFIG_ISDN_AUDIO |
| if ((si == 1) && |
| (l2 != ISDN_PROTO_L2_MODEM) |
| #ifdef CONFIG_ISDN_TTY_FAX |
| && (l2 != ISDN_PROTO_L2_FAX) |
| #endif |
| ) { |
| l2 = ISDN_PROTO_L2_TRANS; |
| usg = ISDN_USAGE_VOICE; |
| } |
| #endif |
| m->mdmreg[REG_SI1I] = si2bit[si]; |
| spin_lock_irqsave(&dev->lock, flags); |
| i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); |
| if (i < 0) { |
| spin_unlock_irqrestore(&dev->lock, flags); |
| isdn_tty_modem_result(RESULT_NO_DIALTONE, info); |
| } else { |
| info->isdn_driver = dev->drvmap[i]; |
| info->isdn_channel = dev->chanmap[i]; |
| info->drv_index = i; |
| dev->m_idx[i] = info->line; |
| dev->usage[i] |= ISDN_USAGE_OUTGOING; |
| info->last_dir = 1; |
| strcpy(info->last_num, n); |
| isdn_info_update(); |
| spin_unlock_irqrestore(&dev->lock, flags); |
| cmd.driver = info->isdn_driver; |
| cmd.arg = info->isdn_channel; |
| cmd.command = ISDN_CMD_CLREAZ; |
| isdn_command(&cmd); |
| strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETEAZ; |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETL2; |
| info->last_l2 = l2; |
| cmd.arg = info->isdn_channel + (l2 << 8); |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETL3; |
| cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); |
| #ifdef CONFIG_ISDN_TTY_FAX |
| if (l2 == ISDN_PROTO_L2_FAX) { |
| cmd.parm.fax = info->fax; |
| info->fax->direction = ISDN_TTY_FAX_CONN_OUT; |
| } |
| #endif |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.arg = info->isdn_channel; |
| sprintf(cmd.parm.setup.phone, "%s", n); |
| sprintf(cmd.parm.setup.eazmsn, "%s", |
| isdn_map_eaz2msn(m->msn, info->isdn_driver)); |
| cmd.parm.setup.si1 = si; |
| cmd.parm.setup.si2 = m->mdmreg[REG_SI2]; |
| cmd.command = ISDN_CMD_DIAL; |
| info->dialing = 1; |
| info->emu.carrierwait = 0; |
| strcpy(dev->num[i], n); |
| isdn_info_update(); |
| isdn_command(&cmd); |
| isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); |
| } |
| } |
| |
| /* isdn_tty_hangup() disassociates a tty from the real |
| * ISDN-line (hangup). The usage-status is cleared |
| * and some cleanup is done also. |
| */ |
| void |
| isdn_tty_modem_hup(modem_info *info, int local) |
| { |
| isdn_ctrl cmd; |
| int di, ch; |
| |
| if (!info) |
| return; |
| |
| di = info->isdn_driver; |
| ch = info->isdn_channel; |
| if (di < 0 || ch < 0) |
| return; |
| |
| info->isdn_driver = -1; |
| info->isdn_channel = -1; |
| |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "Mhup ttyI%d\n", info->line); |
| #endif |
| info->rcvsched = 0; |
| isdn_tty_flush_buffer(info->port.tty); |
| if (info->online) { |
| info->last_lhup = local; |
| info->online = 0; |
| isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| } |
| #ifdef CONFIG_ISDN_AUDIO |
| info->vonline = 0; |
| #ifdef CONFIG_ISDN_TTY_FAX |
| info->faxonline = 0; |
| info->fax->phase = ISDN_FAX_PHASE_IDLE; |
| #endif |
| info->emu.vpar[4] = 0; |
| info->emu.vpar[5] = 8; |
| kfree(info->dtmf_state); |
| info->dtmf_state = NULL; |
| kfree(info->silence_state); |
| info->silence_state = NULL; |
| kfree(info->adpcms); |
| info->adpcms = NULL; |
| kfree(info->adpcmr); |
| info->adpcmr = NULL; |
| #endif |
| if ((info->msr & UART_MSR_RI) && |
| (info->emu.mdmreg[REG_RUNG] & BIT_RUNG)) |
| isdn_tty_modem_result(RESULT_RUNG, info); |
| info->msr &= ~(UART_MSR_DCD | UART_MSR_RI); |
| info->lsr |= UART_LSR_TEMT; |
| |
| if (local) { |
| cmd.driver = di; |
| cmd.command = ISDN_CMD_HANGUP; |
| cmd.arg = ch; |
| isdn_command(&cmd); |
| } |
| |
| isdn_all_eaz(di, ch); |
| info->emu.mdmreg[REG_RINGCNT] = 0; |
| isdn_free_channel(di, ch, 0); |
| |
| if (info->drv_index >= 0) { |
| dev->m_idx[info->drv_index] = -1; |
| info->drv_index = -1; |
| } |
| } |
| |
| /* |
| * Begin of a CAPI like interface, currently used only for |
| * supplementary service (CAPI 2.0 part III) |
| */ |
| #include <linux/isdn/capicmd.h> |
| #include <linux/module.h> |
| |
| int |
| isdn_tty_capi_facility(capi_msg *cm) { |
| return (-1); /* dummy */ |
| } |
| |
| /* isdn_tty_suspend() tries to suspend the current tty connection |
| */ |
| static void |
| isdn_tty_suspend(char *id, modem_info *info, atemu *m) |
| { |
| isdn_ctrl cmd; |
| |
| int l; |
| |
| if (!info) |
| return; |
| |
| #ifdef ISDN_DEBUG_MODEM_SERVICES |
| printk(KERN_DEBUG "Msusp ttyI%d\n", info->line); |
| #endif |
| l = strlen(id); |
| if ((info->isdn_driver >= 0)) { |
| cmd.parm.cmsg.Length = l + 18; |
| cmd.parm.cmsg.Command = CAPI_FACILITY; |
| cmd.parm.cmsg.Subcommand = CAPI_REQ; |
| cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; |
| cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ |
| cmd.parm.cmsg.para[1] = 0; |
| cmd.parm.cmsg.para[2] = l + 3; |
| cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */ |
| cmd.parm.cmsg.para[4] = 0; |
| cmd.parm.cmsg.para[5] = l; |
| memcpy(&cmd.parm.cmsg.para[6], id, l); |
| cmd.command = CAPI_PUT_MESSAGE; |
| cmd.driver = info->isdn_driver; |
| cmd.arg = info->isdn_channel; |
| isdn_command(&cmd); |
| } |
| } |
| |
| /* isdn_tty_resume() tries to resume a suspended call |
| * setup of the lower levels before that. unfortunately here is no |
| * checking for compatibility of used protocols implemented by Q931 |
| * It does the same things like isdn_tty_dial, the last command |
| * is different, may be we can merge it. |
| */ |
| |
| static void |
| isdn_tty_resume(char *id, modem_info *info, atemu *m) |
| { |
| int usg = ISDN_USAGE_MODEM; |
| int si = 7; |
| int l2 = m->mdmreg[REG_L2PROT]; |
| isdn_ctrl cmd; |
| ulong flags; |
| int i; |
| int j; |
| int l; |
| |
| l = strlen(id); |
| for (j = 7; j >= 0; j--) |
| if (m->mdmreg[REG_SI1] & (1 << j)) { |
| si = bit2si[j]; |
| break; |
| } |
| usg = isdn_calc_usage(si, l2); |
| #ifdef CONFIG_ISDN_AUDIO |
| if ((si == 1) && |
| (l2 != ISDN_PROTO_L2_MODEM) |
| #ifdef CONFIG_ISDN_TTY_FAX |
| && (l2 != ISDN_PROTO_L2_FAX) |
| #endif |
| ) { |
| l2 = ISDN_PROTO_L2_TRANS; |
| usg = ISDN_USAGE_VOICE; |
| } |
| #endif |
| m->mdmreg[REG_SI1I] = si2bit[si]; |
| spin_lock_irqsave(&dev->lock, flags); |
| i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); |
| if (i < 0) { |
| spin_unlock_irqrestore(&dev->lock, flags); |
| isdn_tty_modem_result(RESULT_NO_DIALTONE, info); |
| } else { |
| info->isdn_driver = dev->drvmap[i]; |
| info->isdn_channel = dev->chanmap[i]; |
| info->drv_index = i; |
| dev->m_idx[i] = info->line; |
| dev->usage[i] |= ISDN_USAGE_OUTGOING; |
| info->last_dir = 1; |
| // strcpy(info->last_num, n); |
| isdn_info_update(); |
| spin_unlock_irqrestore(&dev->lock, flags); |
| cmd.driver = info->isdn_driver; |
| cmd.arg = info->isdn_channel; |
| cmd.command = ISDN_CMD_CLREAZ; |
| isdn_command(&cmd); |
| strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETEAZ; |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETL2; |
| info->last_l2 = l2; |
| cmd.arg = info->isdn_channel + (l2 << 8); |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETL3; |
| cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.arg = info->isdn_channel; |
| cmd.parm.cmsg.Length = l + 18; |
| cmd.parm.cmsg.Command = CAPI_FACILITY; |
| cmd.parm.cmsg.Subcommand = CAPI_REQ; |
| cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; |
| cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ |
| cmd.parm.cmsg.para[1] = 0; |
| cmd.parm.cmsg.para[2] = l + 3; |
| cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */ |
| cmd.parm.cmsg.para[4] = 0; |
| cmd.parm.cmsg.para[5] = l; |
| memcpy(&cmd.parm.cmsg.para[6], id, l); |
| cmd.command = CAPI_PUT_MESSAGE; |
| info->dialing = 1; |
| // strcpy(dev->num[i], n); |
| isdn_info_update(); |
| isdn_command(&cmd); |
| isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); |
| } |
| } |
| |
| /* isdn_tty_send_msg() sends a message to a HL driver |
| * This is used for hybrid modem cards to send AT commands to it |
| */ |
| |
| static void |
| isdn_tty_send_msg(modem_info *info, atemu *m, char *msg) |
| { |
| int usg = ISDN_USAGE_MODEM; |
| int si = 7; |
| int l2 = m->mdmreg[REG_L2PROT]; |
| isdn_ctrl cmd; |
| ulong flags; |
| int i; |
| int j; |
| int l; |
| |
| 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; |
| } |
| for (j = 7; j >= 0; j--) |
| if (m->mdmreg[REG_SI1] & (1 << j)) { |
| si = bit2si[j]; |
| break; |
| } |
| usg = isdn_calc_usage(si, l2); |
| #ifdef CONFIG_ISDN_AUDIO |
| if ((si == 1) && |
| (l2 != ISDN_PROTO_L2_MODEM) |
| #ifdef CONFIG_ISDN_TTY_FAX |
| && (l2 != ISDN_PROTO_L2_FAX) |
| #endif |
| ) { |
| l2 = ISDN_PROTO_L2_TRANS; |
| usg = ISDN_USAGE_VOICE; |
| } |
| #endif |
| m->mdmreg[REG_SI1I] = si2bit[si]; |
| spin_lock_irqsave(&dev->lock, flags); |
| i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); |
| if (i < 0) { |
| spin_unlock_irqrestore(&dev->lock, flags); |
| isdn_tty_modem_result(RESULT_NO_DIALTONE, info); |
| } else { |
| info->isdn_driver = dev->drvmap[i]; |
| info->isdn_channel = dev->chanmap[i]; |
| info->drv_index = i; |
| dev->m_idx[i] = info->line; |
| dev->usage[i] |= ISDN_USAGE_OUTGOING; |
| info->last_dir = 1; |
| isdn_info_update(); |
| spin_unlock_irqrestore(&dev->lock, flags); |
| cmd.driver = info->isdn_driver; |
| cmd.arg = info->isdn_channel; |
| cmd.command = ISDN_CMD_CLREAZ; |
| isdn_command(&cmd); |
| strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETEAZ; |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETL2; |
| info->last_l2 = l2; |
| cmd.arg = info->isdn_channel + (l2 << 8); |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETL3; |
| cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.arg = info->isdn_channel; |
| cmd.parm.cmsg.Length = l + 14; |
| cmd.parm.cmsg.Command = CAPI_MANUFACTURER; |
| cmd.parm.cmsg.Subcommand = CAPI_REQ; |
| cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; |
| cmd.parm.cmsg.para[0] = l + 1; |
| strncpy(&cmd.parm.cmsg.para[1], msg, l); |
| cmd.parm.cmsg.para[l + 1] = 0xd; |
| cmd.command = CAPI_PUT_MESSAGE; |
| /* info->dialing = 1; |
| strcpy(dev->num[i], n); |
| isdn_info_update(); |
| */ |
| isdn_command(&cmd); |
| } |
| } |
| |
| static inline int |
| isdn_tty_paranoia_check(modem_info *info, char *name, const char *routine) |
| { |
| #ifdef MODEM_PARANOIA_CHECK |
| if (!info) { |
| printk(KERN_WARNING "isdn_tty: null info_struct for %s in %s\n", |
| name, routine); |
| return 1; |
| } |
| if (info->magic != ISDN_ASYNC_MAGIC) { |
| printk(KERN_WARNING "isdn_tty: bad magic for modem struct %s in %s\n", |
| name, routine); |
| return 1; |
| } |
| #endif |
| return 0; |
| } |
| |
| /* |
| * This routine is called to set the UART divisor registers to match |
| * the specified baud rate for a serial port. |
| */ |
| static void |
| isdn_tty_change_speed(modem_info *info) |
| { |
| struct tty_port *port = &info->port; |
| uint cflag, |
| cval, |
| quot; |
| int i; |
| |
| if (!port->tty) |
| return; |
| cflag = port->tty->termios.c_cflag; |
| |
| quot = i = cflag & CBAUD; |
| if (i & CBAUDEX) { |
| i &= ~CBAUDEX; |
| if (i < 1 || i > 2) |
| port->tty->termios.c_cflag &= ~CBAUDEX; |
| else |
| i += 15; |
| } |
| if (quot) { |
| info->mcr |= UART_MCR_DTR; |
| isdn_tty_modem_ncarrier(info); |
| } else { |
| info->mcr &= ~UART_MCR_DTR; |
| if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "Mhup in changespeed\n"); |
| #endif |
| if (info->online) |
| info->ncarrier = 1; |
| isdn_tty_modem_reset_regs(info, 0); |
| isdn_tty_modem_hup(info, 1); |
| } |
| return; |
| } |
| /* byte size and parity */ |
| cval = cflag & (CSIZE | CSTOPB); |
| cval >>= 4; |
| if (cflag & PARENB) |
| cval |= UART_LCR_PARITY; |
| if (!(cflag & PARODD)) |
| cval |= UART_LCR_EPAR; |
| |
| tty_port_set_check_carrier(port, ~cflag & CLOCAL); |
| } |
| |
| static int |
| isdn_tty_startup(modem_info *info) |
| { |
| if (tty_port_initialized(&info->port)) |
| return 0; |
| isdn_lock_drivers(); |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "starting up ttyi%d ...\n", info->line); |
| #endif |
| /* |
| * Now, initialize the UART |
| */ |
| info->mcr = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2; |
| if (info->port.tty) |
| clear_bit(TTY_IO_ERROR, &info->port.tty->flags); |
| /* |
| * and set the speed of the serial port |
| */ |
| isdn_tty_change_speed(info); |
| |
| tty_port_set_initialized(&info->port, 1); |
| info->msr |= (UART_MSR_DSR | UART_MSR_CTS); |
| info->send_outstanding = 0; |
| return 0; |
| } |
| |
| /* |
| * This routine will shutdown a serial port; interrupts are disabled, and |
| * DTR is dropped if the hangup on close termio flag is on. |
| */ |
| static void |
| isdn_tty_shutdown(modem_info *info) |
| { |
| if (!tty_port_initialized(&info->port)) |
| return; |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line); |
| #endif |
| isdn_unlock_drivers(); |
| info->msr &= ~UART_MSR_RI; |
| if (!info->port.tty || (info->port.tty->termios.c_cflag & HUPCL)) { |
| info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS); |
| if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { |
| isdn_tty_modem_reset_regs(info, 0); |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "Mhup in isdn_tty_shutdown\n"); |
| #endif |
| isdn_tty_modem_hup(info, 1); |
| } |
| } |
| if (info->port.tty) |
| set_bit(TTY_IO_ERROR, &info->port.tty->flags); |
| |
| tty_port_set_initialized(&info->port, 0); |
| } |
| |
| /* isdn_tty_write() is the main send-routine. It is called from the upper |
| * levels within the kernel to perform sending data. Depending on the |
| * online-flag it either directs output to the at-command-interpreter or |
| * to the lower level. Additional tasks done here: |
| * - If online, check for escape-sequence (+++) |
| * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes. |
| * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed. |
| * - If dialing, abort dial. |
| */ |
| static int |
| isdn_tty_write(struct tty_struct *tty, const u_char *buf, int count) |
| { |
| int c; |
| int total = 0; |
| modem_info *info = (modem_info *) tty->driver_data; |
| atemu *m = &info->emu; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write")) |
| return 0; |
| /* See isdn_tty_senddown() */ |
| atomic_inc(&info->xmit_lock); |
| while (1) { |
| c = count; |
| if (c > info->xmit_size - info->xmit_count) |
| c = info->xmit_size - info->xmit_count; |
| if (info->isdn_driver >= 0 && c > dev->drv[info->isdn_driver]->maxbufsize) |
| c = dev->drv[info->isdn_driver]->maxbufsize; |
| if (c <= 0) |
| break; |
| if ((info->online > 1) |
| #ifdef CONFIG_ISDN_AUDIO |
| || (info->vonline & 3) |
| #endif |
| ) { |
| #ifdef CONFIG_ISDN_AUDIO |
| if (!info->vonline) |
| #endif |
| isdn_tty_check_esc(buf, m->mdmreg[REG_ESC], c, |
| &(m->pluscount), |
| &(m->lastplus)); |
| memcpy(&info->port.xmit_buf[info->xmit_count], buf, c); |
| #ifdef CONFIG_ISDN_AUDIO |
| if (info->vonline) { |
| int cc = isdn_tty_handleDLEdown(info, m, c); |
| if (info->vonline & 2) { |
| if (!cc) { |
| /* If DLE decoding results in zero-transmit, but |
| * c originally was non-zero, do a wakeup. |
| */ |
| tty_wakeup(tty); |
| info->msr |= UART_MSR_CTS; |
| info->lsr |= UART_LSR_TEMT; |
| } |
| info->xmit_count += cc; |
| } |
| if ((info->vonline & 3) == 1) { |
| /* Do NOT handle Ctrl-Q or Ctrl-S |
| * when in full-duplex audio mode. |
| */ |
| if (isdn_tty_end_vrx(buf, c)) { |
| info->vonline &= ~1; |
| #ifdef ISDN_DEBUG_MODEM_VOICE |
| printk(KERN_DEBUG |
| "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n", |
| info->line); |
| #endif |
| isdn_tty_at_cout("\020\003\r\nVCON\r\n", info); |
| } |
| } |
| } else |
| if (TTY_IS_FCLASS1(info)) { |
| int cc = isdn_tty_handleDLEdown(info, m, c); |
| |
| if (info->vonline & 4) { /* ETX seen */ |
| isdn_ctrl c; |
| |
| c.command = ISDN_CMD_FAXCMD; |
| c.driver = info->isdn_driver; |
| c.arg = info->isdn_channel; |
| c.parm.aux.cmd = ISDN_FAX_CLASS1_CTRL; |
| c.parm.aux.subcmd = ETX; |
| isdn_command(&c); |
| } |
| info->vonline = 0; |
| #ifdef ISDN_DEBUG_MODEM_VOICE |
| printk(KERN_DEBUG "fax dle cc/c %d/%d\n", cc, c); |
| #endif |
| info->xmit_count += cc; |
| } else |
| #endif |
| info->xmit_count += c; |
| } else { |
| info->msr |= UART_MSR_CTS; |
| info->lsr |= UART_LSR_TEMT; |
| if (info->dialing) { |
| info->dialing = 0; |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "Mhup in isdn_tty_write\n"); |
| #endif |
| isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| isdn_tty_modem_hup(info, 1); |
| } else |
| c = isdn_tty_edit_at(buf, c, info); |
| } |
| buf += c; |
| count -= c; |
| total += c; |
| } |
| atomic_dec(&info->xmit_lock); |
| if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) { |
| if (m->mdmreg[REG_DXMT] & BIT_DXMT) { |
| isdn_tty_senddown(info); |
| isdn_tty_tint(info); |
| } |
| isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); |
| } |
| return total; |
| } |
| |
| static int |
| isdn_tty_write_room(struct tty_struct *tty) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| int ret; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write_room")) |
| return 0; |
| if (!info->online) |
| return info->xmit_size; |
| ret = info->xmit_size - info->xmit_count; |
| return (ret < 0) ? 0 : ret; |
| } |
| |
| static int |
| isdn_tty_chars_in_buffer(struct tty_struct *tty) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_chars_in_buffer")) |
| return 0; |
| if (!info->online) |
| return 0; |
| return (info->xmit_count); |
| } |
| |
| static void |
| isdn_tty_flush_buffer(struct tty_struct *tty) |
| { |
| modem_info *info; |
| |
| if (!tty) { |
| return; |
| } |
| info = (modem_info *) tty->driver_data; |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_buffer")) { |
| return; |
| } |
| isdn_tty_cleanup_xmit(info); |
| info->xmit_count = 0; |
| tty_wakeup(tty); |
| } |
| |
| static void |
| isdn_tty_flush_chars(struct tty_struct *tty) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_chars")) |
| return; |
| if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) |
| isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); |
| } |
| |
| /* |
| * ------------------------------------------------------------ |
| * isdn_tty_throttle() |
| * |
| * This routine is called by the upper-layer tty layer to signal that |
| * incoming characters should be throttled. |
| * ------------------------------------------------------------ |
| */ |
| static void |
| isdn_tty_throttle(struct tty_struct *tty) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_throttle")) |
| return; |
| if (I_IXOFF(tty)) |
| info->x_char = STOP_CHAR(tty); |
| info->mcr &= ~UART_MCR_RTS; |
| } |
| |
| static void |
| isdn_tty_unthrottle(struct tty_struct *tty) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_unthrottle")) |
| return; |
| if (I_IXOFF(tty)) { |
| if (info->x_char) |
| info->x_char = 0; |
| else |
| info->x_char = START_CHAR(tty); |
| } |
| info->mcr |= UART_MCR_RTS; |
| } |
| |
| /* |
| * ------------------------------------------------------------ |
| * isdn_tty_ioctl() and friends |
| * ------------------------------------------------------------ |
| */ |
| |
| /* |
| * isdn_tty_get_lsr_info - get line status register info |
| * |
| * Purpose: Let user call ioctl() to get info when the UART physically |
| * is emptied. On bus types like RS485, the transmitter must |
| * release the bus after transmitting. This must be done when |
| * the transmit shift register is empty, not be done when the |
| * transmit holding register is empty. This functionality |
| * allows RS485 driver to be written in user space. |
| */ |
| static int |
| isdn_tty_get_lsr_info(modem_info *info, uint __user *value) |
| { |
| u_char status; |
| uint result; |
| |
| status = info->lsr; |
| result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0); |
| return put_user(result, value); |
| } |
| |
| |
| static int |
| isdn_tty_tiocmget(struct tty_struct *tty) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| u_char control, status; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
| return -ENODEV; |
| if (tty_io_error(tty)) |
| return -EIO; |
| |
| mutex_lock(&modem_info_mutex); |
| #ifdef ISDN_DEBUG_MODEM_IOCTL |
| printk(KERN_DEBUG "ttyI%d ioctl TIOCMGET\n", info->line); |
| #endif |
| |
| control = info->mcr; |
| status = info->msr; |
| mutex_unlock(&modem_info_mutex); |
| return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0) |
| | ((control & UART_MCR_DTR) ? TIOCM_DTR : 0) |
| | ((status & UART_MSR_DCD) ? TIOCM_CAR : 0) |
| | ((status & UART_MSR_RI) ? TIOCM_RNG : 0) |
| | ((status & UART_MSR_DSR) ? TIOCM_DSR : 0) |
| | ((status & UART_MSR_CTS) ? TIOCM_CTS : 0); |
| } |
| |
| static int |
| isdn_tty_tiocmset(struct tty_struct *tty, |
| unsigned int set, unsigned int clear) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
| return -ENODEV; |
| if (tty_io_error(tty)) |
| return -EIO; |
| |
| #ifdef ISDN_DEBUG_MODEM_IOCTL |
| printk(KERN_DEBUG "ttyI%d ioctl TIOCMxxx: %x %x\n", info->line, set, clear); |
| #endif |
| |
| mutex_lock(&modem_info_mutex); |
| if (set & TIOCM_RTS) |
| info->mcr |= UART_MCR_RTS; |
| if (set & TIOCM_DTR) { |
| info->mcr |= UART_MCR_DTR; |
| isdn_tty_modem_ncarrier(info); |
| } |
| |
| if (clear & TIOCM_RTS) |
| info->mcr &= ~UART_MCR_RTS; |
| if (clear & TIOCM_DTR) { |
| info->mcr &= ~UART_MCR_DTR; |
| if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { |
| isdn_tty_modem_reset_regs(info, 0); |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "Mhup in TIOCMSET\n"); |
| #endif |
| if (info->online) |
| info->ncarrier = 1; |
| isdn_tty_modem_hup(info, 1); |
| } |
| } |
| mutex_unlock(&modem_info_mutex); |
| return 0; |
| } |
| |
| static int |
| isdn_tty_ioctl(struct tty_struct *tty, uint cmd, ulong arg) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| int retval; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl")) |
| return -ENODEV; |
| if (tty_io_error(tty)) |
| return -EIO; |
| switch (cmd) { |
| case TCSBRK: /* SVID version: non-zero arg --> no break */ |
| #ifdef ISDN_DEBUG_MODEM_IOCTL |
| printk(KERN_DEBUG "ttyI%d ioctl TCSBRK\n", info->line); |
| #endif |
| retval = tty_check_change(tty); |
| if (retval) |
| return retval; |
| tty_wait_until_sent(tty, 0); |
| return 0; |
| case TCSBRKP: /* support for POSIX tcsendbreak() */ |
| #ifdef ISDN_DEBUG_MODEM_IOCTL |
| printk(KERN_DEBUG "ttyI%d ioctl TCSBRKP\n", info->line); |
| #endif |
| retval = tty_check_change(tty); |
| if (retval) |
| return retval; |
| tty_wait_until_sent(tty, 0); |
| return 0; |
| case TIOCSERGETLSR: /* Get line status register */ |
| #ifdef ISDN_DEBUG_MODEM_IOCTL |
| printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line); |
| #endif |
| return isdn_tty_get_lsr_info(info, (uint __user *) arg); |
| default: |
| #ifdef ISDN_DEBUG_MODEM_IOCTL |
| printk(KERN_DEBUG "UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd, info->line); |
| #endif |
| return -ENOIOCTLCMD; |
| } |
| return 0; |
| } |
| |
| static void |
| isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| |
| mutex_lock(&modem_info_mutex); |
| if (!old_termios) |
| isdn_tty_change_speed(info); |
| else { |
| if (tty->termios.c_cflag == old_termios->c_cflag && |
| tty->termios.c_ispeed == old_termios->c_ispeed && |
| tty->termios.c_ospeed == old_termios->c_ospeed) { |
| mutex_unlock(&modem_info_mutex); |
| return; |
| } |
| isdn_tty_change_speed(info); |
| } |
| mutex_unlock(&modem_info_mutex); |
| } |
| |
| /* |
| * ------------------------------------------------------------ |
| * isdn_tty_open() and friends |
| * ------------------------------------------------------------ |
| */ |
| |
| static int isdn_tty_install(struct tty_driver *driver, struct tty_struct *tty) |
| { |
| modem_info *info = &dev->mdm.info[tty->index]; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
| return -ENODEV; |
| |
| tty->driver_data = info; |
| |
| return tty_port_install(&info->port, driver, tty); |
| } |
| |
| /* |
| * This routine is called whenever a serial port is opened. It |
| * enables interrupts for a serial port, linking in its async structure into |
| * the IRQ chain. It also performs the serial-specific |
| * initialization for the tty structure. |
| */ |
| static int |
| isdn_tty_open(struct tty_struct *tty, struct file *filp) |
| { |
| modem_info *info = tty->driver_data; |
| struct tty_port *port = &info->port; |
| int retval; |
| |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name, |
| port->count); |
| #endif |
| port->count++; |
| port->tty = tty; |
| /* |
| * Start up serial port |
| */ |
| retval = isdn_tty_startup(info); |
| if (retval) { |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "isdn_tty_open return after startup\n"); |
| #endif |
| return retval; |
| } |
| retval = tty_port_block_til_ready(port, tty, filp); |
| if (retval) { |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "isdn_tty_open return after isdn_tty_block_til_ready \n"); |
| #endif |
| return retval; |
| } |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "isdn_tty_open ttyi%d successful...\n", info->line); |
| #endif |
| dev->modempoll++; |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "isdn_tty_open normal exit\n"); |
| #endif |
| return 0; |
| } |
| |
| static void |
| isdn_tty_close(struct tty_struct *tty, struct file *filp) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| struct tty_port *port = &info->port; |
| ulong timeout; |
| |
| if (!info || isdn_tty_paranoia_check(info, tty->name, "isdn_tty_close")) |
| return; |
| if (tty_hung_up_p(filp)) { |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "isdn_tty_close return after tty_hung_up_p\n"); |
| #endif |
| return; |
| } |
| if ((tty->count == 1) && (port->count != 1)) { |
| /* |
| * Uh, oh. tty->count is 1, which means that the tty |
| * structure will be freed. Info->count should always |
| * be one in these conditions. If it's greater than |
| * one, we've got real problems, since it means the |
| * serial port won't be shutdown. |
| */ |
| printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, " |
| "info->count is %d\n", port->count); |
| port->count = 1; |
| } |
| if (--port->count < 0) { |
| printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n", |
| info->line, port->count); |
| port->count = 0; |
| } |
| if (port->count) { |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n"); |
| #endif |
| return; |
| } |
| info->closing = 1; |
| |
| tty->closing = 1; |
| /* |
| * At this point we stop accepting input. To do this, we |
| * disable the receive line status interrupts, and tell the |
| * interrupt driver to stop checking the data ready bit in the |
| * line status register. |
| */ |
| if (tty_port_initialized(port)) { |
| tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */ |
| /* |
| * Before we drop DTR, make sure the UART transmitter |
| * has completely drained; this is especially |
| * important if there is a transmit FIFO! |
| */ |
| timeout = jiffies + HZ; |
| while (!(info->lsr & UART_LSR_TEMT)) { |
| schedule_timeout_interruptible(20); |
| if (time_after(jiffies, timeout)) |
| break; |
| } |
| } |
| dev->modempoll--; |
| isdn_tty_shutdown(info); |
| isdn_tty_flush_buffer(tty); |
| tty_ldisc_flush(tty); |
| port->tty = NULL; |
| info->ncarrier = 0; |
| |
| tty_port_close_end(port, tty); |
| info->closing = 0; |
| #ifdef ISDN_DEBUG_MODEM_OPEN |
| printk(KERN_DEBUG "isdn_tty_close normal exit\n"); |
| #endif |
| } |
| |
| /* |
| * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled. |
| */ |
| static void |
| isdn_tty_hangup(struct tty_struct *tty) |
| { |
| modem_info *info = (modem_info *) tty->driver_data; |
| struct tty_port *port = &info->port; |
| |
| if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup")) |
| return; |
| isdn_tty_shutdown(info); |
| port->count = 0; |
| tty_port_set_active(port, 0); |
| port->tty = NULL; |
| wake_up_interruptible(&port->open_wait); |
| } |
| |
| /* This routine initializes all emulator-data. |
| */ |
| static void |
| isdn_tty_reset_profile(atemu *m) |
| { |
| m->profile[0] = 0; |
| m->profile[1] = 0; |
| m->profile[2] = 43; |
| m->profile[3] = 13; |
| m->profile[4] = 10; |
| m->profile[5] = 8; |
| m->profile[6] = 3; |
| m->profile[7] = 60; |
| m->profile[8] = 2; |
| m->profile[9] = 6; |
| m->profile[10] = 7; |
| m->profile[11] = 70; |
| m->profile[12] = 0x45; |
| m->profile[13] = 4; |
| m->profile[14] = ISDN_PROTO_L2_X75I; |
| m->profile[15] = ISDN_PROTO_L3_TRANS; |
| m->profile[16] = ISDN_SERIAL_XMIT_SIZE / 16; |
| m->profile[17] = ISDN_MODEM_WINSIZE; |
| m->profile[18] = 4; |
| m->profile[19] = 0; |
| m->profile[20] = 0; |
| m->profile[23] = 0; |
| m->pmsn[0] = '\0'; |
| m->plmsn[0] = '\0'; |
| } |
| |
| #ifdef CONFIG_ISDN_AUDIO |
| static void |
| isdn_tty_modem_reset_vpar(atemu *m) |
| { |
| m->vpar[0] = 2; /* Voice-device (2 = phone line) */ |
| m->vpar[1] = 0; /* Silence detection level (0 = none ) */ |
| m->vpar[2] = 70; /* Silence interval (7 sec. ) */ |
| m->vpar[3] = 2; /* Compression type (1 = ADPCM-2 ) */ |
| m->vpar[4] = 0; /* DTMF detection level (0 = softcode ) */ |
| m->vpar[5] = 8; /* DTMF interval (8 * 5 ms. ) */ |
| } |
| #endif |
| |
| #ifdef CONFIG_ISDN_TTY_FAX |
| static void |
| isdn_tty_modem_reset_faxpar(modem_info *info) |
| { |
| T30_s *f = info->fax; |
| |
| f->code = 0; |
| f->phase = ISDN_FAX_PHASE_IDLE; |
| f->direction = 0; |
| f->resolution = 1; /* fine */ |
| f->rate = 5; /* 14400 bit/s */ |
| f->width = 0; |
| f->length = 0; |
| f->compression = 0; |
| f->ecm = 0; |
| f->binary = 0; |
| f->scantime = 0; |
| memset(&f->id[0], 32, FAXIDLEN - 1); |
| f->id[FAXIDLEN - 1] = 0; |
| f->badlin = 0; |
| f->badmul = 0; |
| f->bor = 0; |
| f->nbc = 0; |
| f->cq = 0; |
| f->cr = 0; |
| f->ctcrty = 0; |
| f->minsp = 0; |
| f->phcto = 30; |
| f->rel = 0; |
| memset(&f->pollid[0], 32, FAXIDLEN - 1); |
| f->pollid[FAXIDLEN - 1] = 0; |
| } |
| #endif |
| |
| static void |
| isdn_tty_modem_reset_regs(modem_info *info, int force) |
| { |
| atemu *m = &info->emu; |
| if ((m->mdmreg[REG_DTRR] & BIT_DTRR) || force) { |
| memcpy(m->mdmreg, m->profile, ISDN_MODEM_NUMREG); |
| memcpy(m->msn, m->pmsn, ISDN_MSNLEN); |
| memcpy(m->lmsn, m->plmsn, ISDN_LMSNLEN); |
| info->xmit_size = m->mdmreg[REG_PSIZE] * 16; |
| } |
| #ifdef CONFIG_ISDN_AUDIO |
| isdn_tty_modem_reset_vpar(m); |
| #endif |
| #ifdef CONFIG_ISDN_TTY_FAX |
| isdn_tty_modem_reset_faxpar(info); |
| #endif |
| m->mdmcmdl = 0; |
| } |
| |
| static void |
| modem_write_profile(atemu *m) |
| { |
| memcpy(m->profile, m->mdmreg, ISDN_MODEM_NUMREG); |
| memcpy(m->pmsn, m->msn, ISDN_MSNLEN); |
| memcpy(m->plmsn, m->lmsn, ISDN_LMSNLEN); |
| if (dev->profd) |
| send_sig(SIGIO, dev->profd, 1); |
| } |
| |
| static const struct tty_operations modem_ops = { |
| .install = isdn_tty_install, |
| .open = isdn_tty_open, |
| .close = isdn_tty_close, |
| .write = isdn_tty_write, |
| .flush_chars = isdn_tty_flush_chars, |
| .write_room = isdn_tty_write_room, |
| .chars_in_buffer = isdn_tty_chars_in_buffer, |
| .flush_buffer = isdn_tty_flush_buffer, |
| .ioctl = isdn_tty_ioctl, |
| .throttle = isdn_tty_throttle, |
| .unthrottle = isdn_tty_unthrottle, |
| .set_termios = isdn_tty_set_termios, |
| .hangup = isdn_tty_hangup, |
| .tiocmget = isdn_tty_tiocmget, |
| .tiocmset = isdn_tty_tiocmset, |
| }; |
| |
| static int isdn_tty_carrier_raised(struct tty_port *port) |
| { |
| modem_info *info = container_of(port, modem_info, port); |
| return info->msr & UART_MSR_DCD; |
| } |
| |
| static const struct tty_port_operations isdn_tty_port_ops = { |
| .carrier_raised = isdn_tty_carrier_raised, |
| }; |
| |
| int |
| isdn_tty_modem_init(void) |
| { |
| isdn_modem_t *m; |
| int i, retval; |
| modem_info *info; |
| |
| m = &dev->mdm; |
| m->tty_modem = alloc_tty_driver(ISDN_MAX_CHANNELS); |
| if (!m->tty_modem) |
| return -ENOMEM; |
| m->tty_modem->name = "ttyI"; |
| m->tty_modem->major = ISDN_TTY_MAJOR; |
| m->tty_modem->minor_start = 0; |
| m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL; |
| m->tty_modem->subtype = SERIAL_TYPE_NORMAL; |
| m->tty_modem->init_termios = tty_std_termios; |
| m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; |
| m->tty_modem->flags = TTY_DRIVER_REAL_RAW; |
| m->tty_modem->driver_name = "isdn_tty"; |
| tty_set_operations(m->tty_modem, &modem_ops); |
| retval = tty_register_driver(m->tty_modem); |
| if (retval) { |
| printk(KERN_WARNING "isdn_tty: Couldn't register modem-device\n"); |
| goto err; |
| } |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| info = &m->info[i]; |
| #ifdef CONFIG_ISDN_TTY_FAX |
| if (!(info->fax = kmalloc(sizeof(T30_s), GFP_KERNEL))) { |
| printk(KERN_ERR "Could not allocate fax t30-buffer\n"); |
| retval = -ENOMEM; |
| goto err_unregister; |
| } |
| #endif |
| tty_port_init(&info->port); |
| info->port.ops = &isdn_tty_port_ops; |
| spin_lock_init(&info->readlock); |
| sprintf(info->last_cause, "0000"); |
| sprintf(info->last_num, "none"); |
| info->last_dir = 0; |
| info->last_lhup = 1; |
| info->last_l2 = -1; |
| info->last_si = 0; |
| isdn_tty_reset_profile(&info->emu); |
| isdn_tty_modem_reset_regs(info, 1); |
| info->magic = ISDN_ASYNC_MAGIC; |
| info->line = i; |
| info->x_char = 0; |
| info->isdn_driver = -1; |
| info->isdn_channel = -1; |
| info->drv_index = -1; |
| info->xmit_size = ISDN_SERIAL_XMIT_SIZE; |
| timer_setup(&info->nc_timer, isdn_tty_modem_do_ncarrier, 0); |
| skb_queue_head_init(&info->xmit_queue); |
| #ifdef CONFIG_ISDN_AUDIO |
| skb_queue_head_init(&info->dtmf_queue); |
| #endif |
| info->port.xmit_buf = kmalloc(ISDN_SERIAL_XMIT_MAX + 5, |
| GFP_KERNEL); |
| if (!info->port.xmit_buf) { |
| printk(KERN_ERR "Could not allocate modem xmit-buffer\n"); |
| retval = -ENOMEM; |
| goto err_unregister; |
| } |
| /* Make room for T.70 header */ |
| info->port.xmit_buf += 4; |
| } |
| return 0; |
| err_unregister: |
| for (i--; i >= 0; i--) { |
| info = &m->info[i]; |
| #ifdef CONFIG_ISDN_TTY_FAX |
| 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: |
| put_tty_driver(m->tty_modem); |
| m->tty_modem = NULL; |
| return retval; |
| } |
| |
| void |
| isdn_tty_exit(void) |
| { |
| modem_info *info; |
| int i; |
| |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| info = &dev->mdm.info[i]; |
| isdn_tty_cleanup_xmit(info); |
| #ifdef CONFIG_ISDN_TTY_FAX |
| 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); |
| dev->mdm.tty_modem = NULL; |
| } |
| |
| |
| /* |
| * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx) |
| * match the MSN against the MSNs (glob patterns) defined for tty_emulator, |
| * and return 0 for match, 1 for no match, 2 if MSN could match if longer. |
| */ |
| |
| static int |
| isdn_tty_match_icall(char *cid, atemu *emu, int di) |
| { |
| #ifdef ISDN_DEBUG_MODEM_ICALL |
| printk(KERN_DEBUG "m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n", |
| emu->msn, emu->lmsn, isdn_map_eaz2msn(emu->msn, di), |
| emu->mdmreg[REG_SI1], emu->mdmreg[REG_SI2]); |
| #endif |
| if (strlen(emu->lmsn)) { |
| char *p = emu->lmsn; |
| char *q; |
| int tmp; |
| int ret = 0; |
| |
| while (1) { |
| if ((q = strchr(p, ';'))) |
| *q = '\0'; |
| if ((tmp = isdn_msncmp(cid, isdn_map_eaz2msn(p, di))) > ret) |
| ret = tmp; |
| #ifdef ISDN_DEBUG_MODEM_ICALL |
| printk(KERN_DEBUG "m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n", |
| p, isdn_map_eaz2msn(emu->msn, di), tmp); |
| #endif |
| if (q) { |
| *q = ';'; |
| p = q; |
| p++; |
| } |
| if (!tmp) |
| return 0; |
| if (!q) |
| break; |
| } |
| return ret; |
| } else { |
| int tmp; |
| tmp = isdn_msncmp(cid, isdn_map_eaz2msn(emu->msn, di)); |
| #ifdef ISDN_DEBUG_MODEM_ICALL |
| printk(KERN_DEBUG "m_fi: mmsn=%s -> tmp=%d\n", |
| isdn_map_eaz2msn(emu->msn, di), tmp); |
| #endif |
| return tmp; |
| } |
| } |
| |
| /* |
| * An incoming call-request has arrived. |
| * Search the tty-devices for an appropriate device and bind |
| * it to the ISDN-Channel. |
| * Return: |
| * |
| * 0 = No matching device found. |
| * 1 = A matching device found. |
| * 3 = No match found, but eventually would match, if |
| * CID is longer. |
| */ |
| int |
| isdn_tty_find_icall(int di, int ch, setup_parm *setup) |
| { |
| char *eaz; |
| int i; |
| int wret; |
| int idx; |
| int si1; |
| int si2; |
| char *nr; |
| ulong flags; |
| |
| if (!setup->phone[0]) { |
| nr = "0"; |
| printk(KERN_INFO "isdn_tty: Incoming call without OAD, assuming '0'\n"); |
| } else |
| nr = setup->phone; |
| si1 = (int) setup->si1; |
| si2 = (int) setup->si2; |
| if (!setup->eazmsn[0]) { |
| printk(KERN_WARNING "isdn_tty: Incoming call without CPN, assuming '0'\n"); |
| eaz = "0"; |
| } else |
| eaz = setup->eazmsn; |
| #ifdef ISDN_DEBUG_MODEM_ICALL |
| printk(KERN_DEBUG "m_fi: eaz=%s si1=%d si2=%d\n", eaz, si1, si2); |
| #endif |
| wret = 0; |
| spin_lock_irqsave(&dev->lock, flags); |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| modem_info *info = &dev->mdm.info[i]; |
| |
| if (info->port.count == 0) |
| continue; |
| if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */ |
| (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */ |
| idx = isdn_dc2minor(di, ch); |
| #ifdef ISDN_DEBUG_MODEM_ICALL |
| printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret); |
| printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx, |
| info->port.flags, info->isdn_driver, |
| info->isdn_channel, dev->usage[idx]); |
| #endif |
| if ( |
| #ifndef FIX_FILE_TRANSFER |
| tty_port_active(&info->port) && |
| #endif |
| (info->isdn_driver == -1) && |
| (info->isdn_channel == -1) && |
| (USG_NONE(dev->usage[idx]))) { |
| int matchret; |
| |
| if ((matchret = isdn_tty_match_icall(eaz, &info->emu, di)) > wret) |
| wret = matchret; |
| if (!matchret) { /* EAZ is matching */ |
| info->isdn_driver = di; |
| info->isdn_channel = ch; |
| info->drv_index = idx; |
| dev->m_idx[idx] = info->line; |
| dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE; |
| dev->usage[idx] |= isdn_calc_usage(si1, info->emu.mdmreg[REG_L2PROT]); |
| strcpy(dev->num[idx], nr); |
| strcpy(info->emu.cpn, eaz); |
| info->emu.mdmreg[REG_SI1I] = si2bit[si1]; |
| info->emu.mdmreg[REG_PLAN] = setup->plan; |
| info->emu.mdmreg[REG_SCREEN] = setup->screen; |
| isdn_info_update(); |
| spin_unlock_irqrestore(&dev->lock, flags); |
| printk(KERN_INFO "isdn_tty: call from %s, -> RING on ttyI%d\n", nr, |
| info->line); |
| info->msr |= UART_MSR_RI; |
| isdn_tty_modem_result(RESULT_RING, info); |
| isdn_timer_ctrl(ISDN_TIMER_MODEMRING, 1); |
| return 1; |
| } |
| } |
| } |
| } |
| spin_unlock_irqrestore(&dev->lock, flags); |
| printk(KERN_INFO "isdn_tty: call from %s -> %s %s\n", nr, eaz, |
| ((dev->drv[di]->flags & DRV_FLAG_REJBUS) && (wret != 2)) ? "rejected" : "ignored"); |
| return (wret == 2) ? 3 : 0; |
| } |
| |
| int |
| isdn_tty_stat_callback(int i, isdn_ctrl *c) |
| { |
| int mi; |
| modem_info *info; |
| char *e; |
| |
| if (i < 0) |
| return 0; |
| if ((mi = dev->m_idx[i]) >= 0) { |
| info = &dev->mdm.info[mi]; |
| switch (c->command) { |
| case ISDN_STAT_CINF: |
| printk(KERN_DEBUG "CHARGEINFO on ttyI%d: %ld %s\n", info->line, c->arg, c->parm.num); |
| info->emu.charge = (unsigned) simple_strtoul(c->parm.num, &e, 10); |
| if (e == (char *)c->parm.num) |
| info->emu.charge = 0; |
| |
| break; |
| case ISDN_STAT_BSENT: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_BSENT ttyI%d\n", info->line); |
| #endif |
| if ((info->isdn_driver == c->driver) && |
| (info->isdn_channel == c->arg)) { |
| info->msr |= UART_MSR_CTS; |
| if (info->send_outstanding) |
| if (!(--info->send_outstanding)) |
| info->lsr |= UART_LSR_TEMT; |
| isdn_tty_tint(info); |
| return 1; |
| } |
| break; |
| case ISDN_STAT_CAUSE: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_CAUSE ttyI%d\n", info->line); |
| #endif |
| /* Signal cause to tty-device */ |
| strncpy(info->last_cause, c->parm.num, 5); |
| return 1; |
| case ISDN_STAT_DISPLAY: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_DISPLAY ttyI%d\n", info->line); |
| #endif |
| /* Signal display to tty-device */ |
| if ((info->emu.mdmreg[REG_DISPLAY] & BIT_DISPLAY) && |
| !(info->emu.mdmreg[REG_RESPNUM] & BIT_RESPNUM)) { |
| isdn_tty_at_cout("\r\n", info); |
| isdn_tty_at_cout("DISPLAY: ", info); |
| isdn_tty_at_cout(c->parm.display, info); |
| isdn_tty_at_cout("\r\n", info); |
| } |
| return 1; |
| case ISDN_STAT_DCONN: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_DCONN ttyI%d\n", info->line); |
| #endif |
| if (tty_port_active(&info->port)) { |
| if (info->dialing == 1) { |
| info->dialing = 2; |
| return 1; |
| } |
| } |
| break; |
| case ISDN_STAT_DHUP: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_DHUP ttyI%d\n", info->line); |
| #endif |
| if (tty_port_active(&info->port)) { |
| if (info->dialing == 1) |
| isdn_tty_modem_result(RESULT_BUSY, info); |
| if (info->dialing > 1) |
| isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| info->dialing = 0; |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "Mhup in ISDN_STAT_DHUP\n"); |
| #endif |
| isdn_tty_modem_hup(info, 0); |
| return 1; |
| } |
| break; |
| case ISDN_STAT_BCONN: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_BCONN ttyI%d\n", info->line); |
| #endif |
| /* Wake up any processes waiting |
| * for incoming call of this device when |
| * DCD follow the state of incoming carrier |
| */ |
| if (info->port.blocked_open && |
| (info->emu.mdmreg[REG_DCD] & BIT_DCD)) { |
| wake_up_interruptible(&info->port.open_wait); |
| } |
| |
| /* Schedule CONNECT-Message to any tty |
| * waiting for it and |
| * set DCD-bit of its modem-status. |
| */ |
| if (tty_port_active(&info->port) || |
| (info->port.blocked_open && |
| (info->emu.mdmreg[REG_DCD] & BIT_DCD))) { |
| info->msr |= UART_MSR_DCD; |
| info->emu.charge = 0; |
| if (info->dialing & 0xf) |
| info->last_dir = 1; |
| else |
| info->last_dir = 0; |
| info->dialing = 0; |
| info->rcvsched = 1; |
| if (USG_MODEM(dev->usage[i])) { |
| if (info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) { |
| strcpy(info->emu.connmsg, c->parm.num); |
| isdn_tty_modem_result(RESULT_CONNECT, info); |
| } else |
| isdn_tty_modem_result(RESULT_CONNECT64000, info); |
| } |
| if (USG_VOICE(dev->usage[i])) |
| isdn_tty_modem_result(RESULT_VCON, info); |
| return 1; |
| } |
| break; |
| case ISDN_STAT_BHUP: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_BHUP ttyI%d\n", info->line); |
| #endif |
| if (tty_port_active(&info->port)) { |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "Mhup in ISDN_STAT_BHUP\n"); |
| #endif |
| isdn_tty_modem_hup(info, 0); |
| return 1; |
| } |
| break; |
| case ISDN_STAT_NODCH: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_NODCH ttyI%d\n", info->line); |
| #endif |
| if (tty_port_active(&info->port)) { |
| if (info->dialing) { |
| info->dialing = 0; |
| info->last_l2 = -1; |
| info->last_si = 0; |
| sprintf(info->last_cause, "0000"); |
| isdn_tty_modem_result(RESULT_NO_DIALTONE, info); |
| } |
| isdn_tty_modem_hup(info, 0); |
| return 1; |
| } |
| break; |
| case ISDN_STAT_UNLOAD: |
| #ifdef ISDN_TTY_STAT_DEBUG |
| printk(KERN_DEBUG "tty_STAT_UNLOAD ttyI%d\n", info->line); |
| #endif |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| info = &dev->mdm.info[i]; |
| if (info->isdn_driver == c->driver) { |
| if (info->online) |
| isdn_tty_modem_hup(info, 1); |
| } |
| } |
| return 1; |
| #ifdef CONFIG_ISDN_TTY_FAX |
| case ISDN_STAT_FAXIND: |
| if (tty_port_active(&info->port)) { |
| isdn_tty_fax_command(info, c); |
| } |
| break; |
| #endif |
| #ifdef CONFIG_ISDN_AUDIO |
| case ISDN_STAT_AUDIO: |
| if (tty_port_active(&info->port)) { |
| switch (c->parm.num[0]) { |
| case ISDN_AUDIO_DTMF: |
| if (info->vonline) { |
| isdn_audio_put_dle_code(info, |
| c->parm.num[1]); |
| } |
| break; |
| } |
| } |
| break; |
| #endif |
| } |
| } |
| return 0; |
| } |
| |
| /********************************************************************* |
| Modem-Emulator-Routines |
| *********************************************************************/ |
| |
| #define cmdchar(c) ((c >= ' ') && (c <= 0x7f)) |
| |
| /* |
| * Put a message from the AT-emulator into receive-buffer of tty, |
| * convert CR, LF, and BS to values in modem-registers 3, 4 and 5. |
| */ |
| void |
| isdn_tty_at_cout(char *msg, modem_info *info) |
| { |
| struct tty_port *port = &info->port; |
| atemu *m = &info->emu; |
| char *p; |
| char c; |
| u_long flags; |
| struct sk_buff *skb = NULL; |
| char *sp = NULL; |
| int l; |
| |
| if (!msg) { |
| printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n"); |
| return; |
| } |
| |
| l = strlen(msg); |
| |
| spin_lock_irqsave(&info->readlock, flags); |
| if (info->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(port, 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, l); |
| #ifdef CONFIG_ISDN_AUDIO |
| ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; |
| ISDN_AUDIO_SKB_LOCK(skb) = 0; |
| #endif |
| } |
| |
| for (p = msg; *p; p++) { |
| switch (*p) { |
| case '\r': |
| c = m->mdmreg[REG_CR]; |
| break; |
| case '\n': |
| c = m->mdmreg[REG_LF]; |
| break; |
| case '\b': |
| c = m->mdmreg[REG_BS]; |
| break; |
| default: |
| c = *p; |
| } |
| if (skb) { |
| *sp++ = c; |
| } else { |
| if (tty_insert_flip_char(port, c, TTY_NORMAL) == 0) |
| break; |
| } |
| } |
| if (skb) { |
| __skb_queue_tail(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel], skb); |
| dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len; |
| spin_unlock_irqrestore(&info->readlock, flags); |
| /* Schedule dequeuing */ |
| if (dev->modempoll && info->rcvsched) |
| isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); |
| |
| } else { |
| spin_unlock_irqrestore(&info->readlock, flags); |
| tty_flip_buffer_push(port); |
| } |
| } |
| |
| /* |
| * Perform ATH Hangup |
| */ |
| static void |
| isdn_tty_on_hook(modem_info *info) |
| { |
| if (info->isdn_channel >= 0) { |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "Mhup in isdn_tty_on_hook\n"); |
| #endif |
| isdn_tty_modem_hup(info, 1); |
| } |
| } |
| |
| static void |
| isdn_tty_off_hook(void) |
| { |
| printk(KERN_DEBUG "isdn_tty_off_hook\n"); |
| } |
| |
| #define PLUSWAIT1 (HZ / 2) /* 0.5 sec. */ |
| #define PLUSWAIT2 (HZ * 3 / 2) /* 1.5 sec */ |
| |
| /* |
| * Check Buffer for Modem-escape-sequence, activate timer-callback to |
| * isdn_tty_modem_escape() if sequence found. |
| * |
| * Parameters: |
| * p pointer to databuffer |
| * plus escape-character |
| * count length of buffer |
| * pluscount count of valid escape-characters so far |
| * lastplus timestamp of last character |
| */ |
| static void |
| isdn_tty_check_esc(const u_char *p, u_char plus, int count, int *pluscount, |
| u_long *lastplus) |
| { |
| if (plus > 127) |
| return; |
| if (count > 3) { |
| p += count - 3; |
| count = 3; |
| *pluscount = 0; |
| } |
| while (count > 0) { |
| if (*(p++) == plus) { |
| if ((*pluscount)++) { |
| /* Time since last '+' > 0.5 sec. ? */ |
| if (time_after(jiffies, *lastplus + PLUSWAIT1)) |
| *pluscount = 1; |
| } else { |
| /* Time since last non-'+' < 1.5 sec. ? */ |
| if (time_before(jiffies, *lastplus + PLUSWAIT2)) |
| *pluscount = 0; |
| } |
| if ((*pluscount == 3) && (count == 1)) |
| isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, 1); |
| if (*pluscount > 3) |
| *pluscount = 1; |
| } else |
| *pluscount = 0; |
| *lastplus = jiffies; |
| count--; |
| } |
| } |
| |
| /* |
| * Return result of AT-emulator to tty-receive-buffer, depending on |
| * modem-register 12, bit 0 and 1. |
| * For CONNECT-messages also switch to online-mode. |
| * For RING-message handle auto-ATA if register 0 != 0 |
| */ |
| |
| static void |
| isdn_tty_modem_result(int code, modem_info *info) |
| { |
| atemu *m = &info->emu; |
| static char *msg[] = |
| {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR", |
| "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER", |
| "RINGING", "NO MSN/EAZ", "VCON", "RUNG"}; |
| char s[ISDN_MSNLEN + 10]; |
| |
| switch (code) { |
| case RESULT_RING: |
| m->mdmreg[REG_RINGCNT]++; |
| if (m->mdmreg[REG_RINGCNT] == m->mdmreg[REG_RINGATA]) |
| /* Automatically accept incoming call */ |
| isdn_tty_cmd_ATA(info); |
| break; |
| case RESULT_NO_CARRIER: |
| #ifdef ISDN_DEBUG_MODEM_HUP |
| printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n", |
| info->closing, !info->port.tty); |
| #endif |
| m->mdmreg[REG_RINGCNT] = 0; |
| del_timer(&info->nc_timer); |
| info->ncarrier = 0; |
| if (info->closing || !info->port.tty) |
| return; |
| |
| #ifdef CONFIG_ISDN_AUDIO |
| if (info->vonline & 1) { |
| #ifdef ISDN_DEBUG_MODEM_VOICE |
| printk(KERN_DEBUG "res3: send DLE-ETX on ttyI%d\n", |
| info->line); |
| #endif |
| /* voice-recording, add DLE-ETX */ |
| isdn_tty_at_cout("\020\003", info); |
| } |
| if (info->vonline & 2) { |
| #ifdef ISDN_DEBUG_MODEM_VOICE |
| printk(KERN_DEBUG "res3: send DLE-DC4 on ttyI%d\n", |
| info->line); |
| #endif |
| /* voice-playing, add DLE-DC4 */ |
| isdn_tty_at_cout("\020\024", info); |
| } |
| #endif |
| break; |
| case RESULT_CONNECT: |
| case RESULT_CONNECT64000: |
| sprintf(info->last_cause, "0000"); |
| if (!info->online) |
| info->online = 2; |
| break; |
| case RESULT_VCON: |
| #ifdef ISDN_DEBUG_MODEM_VOICE |
| printk(KERN_DEBUG "res3: send VCON on ttyI%d\n", |
| info->line); |
| #endif |
| sprintf(info->last_cause, "0000"); |
| if (!info->online) |
| info->online = 1; |
| break; |
| } /* switch (code) */ |
| |
| if (m->mdmreg[REG_RESP] & BIT_RESP) { |
| /* Show results */ |
| if (m->mdmreg[REG_RESPNUM] & BIT_RESPNUM) { |
| /* Show numeric results only */ |
| sprintf(s, "\r\n%d\r\n", code); |
| isdn_tty_at_cout(s, info); |
| } else { |
| if (code == RESULT_RING) { |
| /* return if "show RUNG" and ringcounter>1 */ |
| if ((m->mdmreg[REG_RUNG] & BIT_RUNG) && |
| (m->mdmreg[REG_RINGCNT] > 1)) |
| return; |
| /* print CID, _before_ _every_ ring */ |
| if (!(m->mdmreg[REG_CIDONCE] & BIT_CIDONCE)) { |
| isdn_tty_at_cout("\r\nCALLER NUMBER: ", info); |
| isdn_tty_at_cout(dev->num[info->drv_index], info); |
| if (m->mdmreg[REG_CDN] & BIT_CDN) { |
| isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); |
| isdn_tty_at_cout(info->emu.cpn, info); |
| } |
| } |
| } |
| isdn_tty_at_cout("\r\n", info); |
| isdn_tty_at_cout(msg[code], info); |
| switch (code) { |
| case RESULT_CONNECT: |
| switch (m->mdmreg[REG_L2PROT]) { |
| case ISDN_PROTO_L2_MODEM: |
| isdn_tty_at_cout(" ", info); |
| isdn_tty_at_cout(m->connmsg, info); |
| break; |
| } |
| break; |
| case RESULT_RING: |
| /* Append CPN, if enabled */ |
| if ((m->mdmreg[REG_CPN] & BIT_CPN)) { |
| sprintf(s, "/%s", m->cpn); |
| isdn_tty_at_cout(s, info); |
| } |
| /* Print CID only once, _after_ 1st RING */ |
| if ((m->mdmreg[REG_CIDONCE] & BIT_CIDONCE) && |
| (m->mdmreg[REG_RINGCNT] == 1)) { |
| isdn_tty_at_cout("\r\n", info); |
| isdn_tty_at_cout("CALLER NUMBER: ", info); |
| isdn_tty_at_cout(dev->num[info->drv_index], info); |
| if (m->mdmreg[REG_CDN] & BIT_CDN) { |
| isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); |
| isdn_tty_at_cout(info->emu.cpn, info); |
| } |
| } |
| break; |
| case RESULT_NO_CARRIER: |
| case RESULT_NO_DIALTONE: |
| case RESULT_BUSY: |
| case RESULT_NO_ANSWER: |
| m->mdmreg[REG_RINGCNT] = 0; |
| /* Append Cause-Message if enabled */ |
| if (m->mdmreg[REG_RESPXT] & BIT_RESPXT) { |
| sprintf(s, "/%s", info->last_cause); |
| isdn_tty_at_cout(s, info); |
| } |
| break; |
| case RESULT_CONNECT64000: |
| /* Append Protocol to CONNECT message */ |
| switch (m->mdmreg[REG_L2PROT]) { |
| case ISDN_PROTO_L2_X75I: |
| case ISDN_PROTO_L2_X75UI: |
| case ISDN_PROTO_L2_X75BUI: |
| isdn_tty_at_cout("/X.75", info); |
| break; |
| case ISDN_PROTO_L2_HDLC: |
| isdn_tty_at_cout("/HDLC", info); |
| break; |
| case ISDN_PROTO_L2_V11096: |
| isdn_tty_at_cout("/V110/9600", info); |
| break; |
| case ISDN_PROTO_L2_V11019: |
| isdn_tty_at_cout("/V110/19200", info); |
| break; |
| case ISDN_PROTO_L2_V11038: |
| isdn_tty_at_cout("/V110/38400", info); |
| break; |
| } |
| if (m->mdmreg[REG_T70] & BIT_T70) { |
| isdn_tty_at_cout("/T.70", info); |
| if (m->mdmreg[REG_T70] & BIT_T70_EXT) |
| isdn_tty_at_cout("+", info); |
| } |
| break; |
| } |
| isdn_tty_at_cout("\r\n", info); |
| } |
| } |
| if (code == RESULT_NO_CARRIER) { |
| if (info->closing || (!info->port.tty)) |
| return; |
| |
| if (tty_port_check_carrier(&info->port)) |
| tty_hangup(info->port.tty); |
| } |
| } |
| |
| |
| /* |
| * Display a modem-register-value. |
| */ |
| static void |
| isdn_tty_show_profile(int ridx, modem_info *info) |
| { |
| char v[6]; |
| |
| sprintf(v, "\r\n%d", info->emu.mdmreg[ridx]); |
| isdn_tty_at_cout(v, info); |
| } |
| |
| /* |
| * Get MSN-string from char-pointer, set pointer to end of number |
| */ |
| static void |
| isdn_tty_get_msnstr(char *n, char **p) |
| { |
| int limit = ISDN_MSNLEN - 1; |
| |
| while (((*p[0] >= '0' && *p[0] <= '9') || |
| /* Why a comma ??? */ |
| (*p[0] == ',') || (*p[0] == ':')) && |
| (limit--)) |
| *n++ = *p[0]++; |
| *n = '\0'; |
| } |
| |
| /* |
| * Get phone-number from modem-commandbuffer |
| */ |
| static void |
| isdn_tty_getdial(char *p, char *q, int cnt) |
| { |
| int first = 1; |
| int limit = ISDN_MSNLEN - 1; /* MUST match the size of interface var to avoid |
| buffer overflow */ |
| |
| while (strchr(" 0123456789,#.*WPTSR-", *p) && *p && --cnt > 0) { |
| if ((*p >= '0' && *p <= '9') || ((*p == 'S') && first) || |
| ((*p == 'R') && first) || |
| (*p == '*') || (*p == '#')) { |
| *q++ = *p; |
| limit--; |
| } |
| if (!limit) |
| break; |
| p++; |
| first = 0; |
| } |
| *q = 0; |
| } |
| |
| #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; } |
| #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; } |
| |
| static void |
| isdn_tty_report(modem_info *info) |
| { |
| atemu *m = &info->emu; |
| char s[80]; |
| |
| isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info); |
| sprintf(s, " Remote Number: %s\r\n", info->last_num); |
| isdn_tty_at_cout(s, info); |
| sprintf(s, " Direction: %s\r\n", info->last_dir ? "outgoing" : "incoming"); |
| isdn_tty_at_cout(s, info); |
| isdn_tty_at_cout(" Layer-2 Protocol: ", info); |
| switch (info->last_l2) { |
| case ISDN_PROTO_L2_X75I: |
| isdn_tty_at_cout("X.75i", info); |
| break; |
| case ISDN_PROTO_L2_X75UI: |
| isdn_tty_at_cout("X.75ui", info); |
| break; |
| case ISDN_PROTO_L2_X75BUI: |
| isdn_tty_at_cout("X.75bui", info); |
| break; |
| case ISDN_PROTO_L2_HDLC: |
| isdn_tty_at_cout("HDLC", info); |
| break; |
| case ISDN_PROTO_L2_V11096: |
| isdn_tty_at_cout("V.110 9600 Baud", info); |
| break; |
| case ISDN_PROTO_L2_V11019: |
| isdn_tty_at_cout("V.110 19200 Baud", info); |
| break; |
| case ISDN_PROTO_L2_V11038: |
| isdn_tty_at_cout("V.110 38400 Baud", info); |
| break; |
| case ISDN_PROTO_L2_TRANS: |
| isdn_tty_at_cout("transparent", info); |
| break; |
| case ISDN_PROTO_L2_MODEM: |
| isdn_tty_at_cout("modem", info); |
| break; |
| case ISDN_PROTO_L2_FAX: |
| isdn_tty_at_cout("fax", info); |
| break; |
| default: |
| isdn_tty_at_cout("unknown", info); |
| break; |
| } |
| if (m->mdmreg[REG_T70] & BIT_T70) { |
| isdn_tty_at_cout("/T.70", info); |
| if (m->mdmreg[REG_T70] & BIT_T70_EXT) |
| isdn_tty_at_cout("+", info); |
| } |
| isdn_tty_at_cout("\r\n", info); |
| isdn_tty_at_cout(" Service: ", info); |
| switch (info->last_si) { |
| case 1: |
| isdn_tty_at_cout("audio\r\n", info); |
| break; |
| case 5: |
| isdn_tty_at_cout("btx\r\n", info); |
| break; |
| case 7: |
| isdn_tty_at_cout("data\r\n", info); |
| break; |
| default: |
| sprintf(s, "%d\r\n", info->last_si); |
| isdn_tty_at_cout(s, info); |
| break; |
| } |
| sprintf(s, " Hangup location: %s\r\n", info->last_lhup ? "local" : "remote"); |
| isdn_tty_at_cout(s, info); |
| sprintf(s, " Last cause: %s\r\n", info->last_cause); |
| isdn_tty_at_cout(s, info); |
| } |
| |
| /* |
| * Parse AT&.. commands. |
| */ |
| static int |
| isdn_tty_cmd_ATand(char **p, modem_info *info) |
| { |
| atemu *m = &info->emu; |
| int i; |
| char rb[100]; |
| |
| #define MAXRB (sizeof(rb) - 1) |
| |
| switch (*p[0]) { |
| case 'B': |
| /* &B - Set Buffersize */ |
| p[0]++; |
| i = isdn_getnum(p); |
| if ((i < 0) || (i > ISDN_SERIAL_XMIT_MAX)) |
| PARSE_ERROR1; |
| #ifdef CONFIG_ISDN_AUDIO |
| if ((m->mdmreg[REG_SI1] & 1) && (i > VBUF)) |
| PARSE_ERROR1; |
| #endif |
| m->mdmreg[REG_PSIZE] = i / 16; |
| info->xmit_size = m->mdmreg[REG_PSIZE] * 16; |
| switch (m->mdmreg[REG_L2PROT]) { |
| case ISDN_PROTO_L2_V11096: |
| case ISDN_PROTO_L2_V11019: |
| case ISDN_PROTO_L2_V11038: |
| info->xmit_size /= 10; |
| } |
| break; |
| case 'C': |
| /* &C - DCD Status */ |
| p[0]++; |
| switch (isdn_getnum(p)) { |
| case 0: |
| m->mdmreg[REG_DCD] &= ~BIT_DCD; |
| break; |
| case 1: |
| m->mdmreg[REG_DCD] |= BIT_DCD; |
| break; |
| default: |
| PARSE_ERROR1 |
| } |
| break; |
| case 'D': |
| /* &D - Set DTR-Low-behavior */ |
| p[0]++; |
| switch (isdn_getnum(p)) { |
| case 0: |
| m->mdmreg[REG_DTRHUP] &= ~BIT_DTRHUP; |
| m->mdmreg[REG_DTRR] &= ~BIT_DTRR; |
| break; |
| case 2: |
| m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; |
| m->mdmreg[REG_DTRR] &= ~BIT_DTRR; |
| break; |
| case 3: |
| m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; |
| m->mdmreg[REG_DTRR] |= BIT_DTRR; |
| break; |
| default: |
| PARSE_ERROR1 |
| } |
| break; |
| case 'E': |
| /* &E -Set EAZ/MSN */ |
| p[0]++; |
| isdn_tty_get_msnstr(m->msn, p); |
| break; |
| case 'F': |
| /* &F -Set Factory-Defaults */ |
| p[0]++; |
| if (info->msr & UART_MSR_DCD) |
| PARSE_ERROR1; |
| isdn_tty_reset_profile(m); |
| isdn_tty_modem_reset_regs(info, 1); |
| break; |
| #ifdef DUMMY_HAYES_AT |
| case 'K': |
| /* only for be compilant with common scripts */ |
| /* &K Flowcontrol - no function */ |
| p[0]++; |
| isdn_getnum(p); |
| break; |
| #endif |
| case 'L': |
| /* &L -Set Numbers to listen on */ |
| p[0]++; |
| i = 0; |
| while (*p[0] && (strchr("0123456789,-*[]?;", *p[0])) && |
| (i < ISDN_LMSNLEN - 1)) |
| m->lmsn[i++] = *p[0]++; |
| m->lmsn[i] = '\0'; |
| break; |
| case 'R': |
| /* &R - Set V.110 bitrate adaption */ |
| p[0]++; |
| i = isdn_getnum(p); |
| switch (i) { |
| case 0: |
| /* Switch off V.110, back to X.75 */ |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| m->mdmreg[REG_SI2] = 0; |
| info->xmit_size = m->mdmreg[REG_PSIZE] * 16; |
| break; |
| case 9600: |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11096; |
| m->mdmreg[REG_SI2] = 197; |
| info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; |
| break; |
| case 19200: |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11019; |
| m->mdmreg[REG_SI2] = 199; |
| info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; |
| break; |
| case 38400: |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11038; |
| m->mdmreg[REG_SI2] = 198; /* no existing standard for this */ |
| info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| /* Switch off T.70 */ |
| m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); |
| /* Set Service 7 */ |
| m->mdmreg[REG_SI1] |= 4; |
| break; |
| case 'S': |
| /* &S - Set Windowsize */ |
| p[0]++; |
| i = isdn_getnum(p); |
| if ((i > 0) && (i < 9)) |
| m->mdmreg[REG_WSIZE] = i; |
| else |
| PARSE_ERROR1; |
| break; |
| case 'V': |
| /* &V - Show registers */ |
| p[0]++; |
| isdn_tty_at_cout("\r\n", info); |
| for (i = 0; i < ISDN_MODEM_NUMREG; i++) { |
| sprintf(rb, "S%02d=%03d%s", i, |
| m->mdmreg[i], ((i + 1) % 10) ? " " : "\r\n"); |
| isdn_tty_at_cout(rb, info); |
| } |
| sprintf(rb, "\r\nEAZ/MSN: %.50s\r\n", |
| strlen(m->msn) ? m->msn : "None"); |
| isdn_tty_at_cout(rb, info); |
| if (strlen(m->lmsn)) { |
| isdn_tty_at_cout("\r\nListen: ", info); |
| isdn_tty_at_cout(m->lmsn, info); |
| isdn_tty_at_cout("\r\n", info); |
| } |
| break; |
| case 'W': |
| /* &W - Write Profile */ |
| p[0]++; |
| switch (*p[0]) { |
| case '0': |
| p[0]++; |
| modem_write_profile(m); |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| case 'X': |
| /* &X - Switch to BTX-Mode and T.70 */ |
| p[0]++; |
| switch (isdn_getnum(p)) { |
| case 0: |
| m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); |
| info->xmit_size = m->mdmreg[REG_PSIZE] * 16; |
| break; |
| case 1: |
| m->mdmreg[REG_T70] |= BIT_T70; |
| m->mdmreg[REG_T70] &= ~BIT_T70_EXT; |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| info->xmit_size = 112; |
| m->mdmreg[REG_SI1] = 4; |
| m->mdmreg[REG_SI2] = 0; |
| break; |
| case 2: |
| m->mdmreg[REG_T70] |= (BIT_T70 | BIT_T70_EXT); |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| info->xmit_size = 112; |
| m->mdmreg[REG_SI1] = 4; |
| m->mdmreg[REG_SI2] = 0; |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| return 0; |
| } |
| |
| static int |
| isdn_tty_check_ats(int mreg, int mval, modem_info *info, atemu *m) |
| { |
| /* Some plausibility checks */ |
| switch (mreg) { |
| case REG_L2PROT: |
| if (mval > ISDN_PROTO_L2_MAX) |
| return 1; |
| break; |
| case REG_PSIZE: |
| if ((mval * 16) > ISDN_SERIAL_XMIT_MAX) |
| return 1; |
| #ifdef CONFIG_ISDN_AUDIO |
| if ((m->mdmreg[REG_SI1] & 1) && (mval > VBUFX)) |
| return 1; |
| #endif |
| info->xmit_size = mval * 16; |
| switch (m->mdmreg[REG_L2PROT]) { |
| case ISDN_PROTO_L2_V11096: |
| case ISDN_PROTO_L2_V11019: |
| case ISDN_PROTO_L2_V11038: |
| info->xmit_size /= 10; |
| } |
| break; |
| case REG_SI1I: |
| case REG_PLAN: |
| case REG_SCREEN: |
| /* readonly registers */ |
| return 1; |
| } |
| return 0; |
| } |
| |
| /* |
| * Perform ATS command |
| */ |
| static int |
| isdn_tty_cmd_ATS(char **p, modem_info *info) |
| { |
| atemu *m = &info->emu; |
| int bitpos; |
| int mreg; |
| int mval; |
| int bval; |
| |
| mreg = isdn_getnum(p); |
| if (mreg < 0 || mreg >= ISDN_MODEM_NUMREG) |
| PARSE_ERROR1; |
| switch (*p[0]) { |
| case '=': |
| p[0]++; |
| mval = isdn_getnum(p); |
| if (mval < 0 || mval > 255) |
| PARSE_ERROR1; |
| if (isdn_tty_check_ats(mreg, mval, info, m)) |
| PARSE_ERROR1; |
| m->mdmreg[mreg] = mval; |
| break; |
| case '.': |
| /* Set/Clear a single bit */ |
| p[0]++; |
| bitpos = isdn_getnum(p); |
| if ((bitpos < 0) || (bitpos > 7)) |
| PARSE_ERROR1; |
| switch (*p[0]) { |
| case '=': |
| p[0]++; |
| bval = isdn_getnum(p); |
| if (bval < 0 || bval > 1) |
| PARSE_ERROR1; |
| if (bval) |
| mval = m->mdmreg[mreg] | (1 << bitpos); |
| else |
| mval = m->mdmreg[mreg] & ~(1 << bitpos); |
| if (isdn_tty_check_ats(mreg, mval, info, m)) |
| PARSE_ERROR1; |
| m->mdmreg[mreg] = mval; |
| break; |
| case '?': |
| p[0]++; |
| isdn_tty_at_cout("\r\n", info); |
| isdn_tty_at_cout((m->mdmreg[mreg] & (1 << bitpos)) ? "1" : "0", |
| info); |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| case '?': |
| p[0]++; |
| isdn_tty_show_profile(mreg, info); |
| break; |
| default: |
| PARSE_ERROR1; |
| break; |
| } |
| return 0; |
| } |
| |
| /* |
| * Perform ATA command |
| */ |
| static void |
| isdn_tty_cmd_ATA(modem_info *info) |
| { |
| atemu *m = &info->emu; |
| isdn_ctrl cmd; |
| int l2; |
| |
| if (info->msr & UART_MSR_RI) { |
| /* Accept incoming call */ |
| info->last_dir = 0; |
| strcpy(info->last_num, dev->num[info->drv_index]); |
| m->mdmreg[REG_RINGCNT] = 0; |
| info->msr &= ~UART_MSR_RI; |
| l2 = m->mdmreg[REG_L2PROT]; |
| #ifdef CONFIG_ISDN_AUDIO |
| /* If more than one bit set in reg18, autoselect Layer2 */ |
| if ((m->mdmreg[REG_SI1] & m->mdmreg[REG_SI1I]) != m->mdmreg[REG_SI1]) { |
| if (m->mdmreg[REG_SI1I] == 1) { |
| if ((l2 != ISDN_PROTO_L2_MODEM) && (l2 != ISDN_PROTO_L2_FAX)) |
| l2 = ISDN_PROTO_L2_TRANS; |
| } else |
| l2 = ISDN_PROTO_L2_X75I; |
| } |
| #endif |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETL2; |
| cmd.arg = info->isdn_channel + (l2 << 8); |
| info->last_l2 = l2; |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_SETL3; |
| cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); |
| #ifdef CONFIG_ISDN_TTY_FAX |
| if (l2 == ISDN_PROTO_L2_FAX) { |
| cmd.parm.fax = info->fax; |
| info->fax->direction = ISDN_TTY_FAX_CONN_IN; |
| } |
| #endif |
| isdn_command(&cmd); |
| cmd.driver = info->isdn_driver; |
| cmd.arg = info->isdn_channel; |
| cmd.command = ISDN_CMD_ACCEPTD; |
| info->dialing = 16; |
| info->emu.carrierwait = 0; |
| isdn_command(&cmd); |
| isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); |
| } else |
| isdn_tty_modem_result(RESULT_NO_ANSWER, info); |
| } |
| |
| #ifdef CONFIG_ISDN_AUDIO |
| /* |
| * Parse AT+F.. commands |
| */ |
| static int |
| isdn_tty_cmd_PLUSF(char **p, modem_info *info) |
| { |
| atemu *m = &info->emu; |
| char rs[20]; |
| |
| if (!strncmp(p[0], "CLASS", 5)) { |
| p[0] += 5; |
| switch (*p[0]) { |
| case '?': |
| p[0]++; |
| sprintf(rs, "\r\n%d", |
| (m->mdmreg[REG_SI1] & 1) ? 8 : 0); |
| #ifdef CONFIG_ISDN_TTY_FAX |
| if (TTY_IS_FCLASS2(info)) |
| sprintf(rs, "\r\n2"); |
| else if (TTY_IS_FCLASS1(info)) |
| sprintf(rs, "\r\n1"); |
| #endif |
| isdn_tty_at_cout(rs, info); |
| break; |
| case '=': |
| p[0]++; |
| switch (*p[0]) { |
| case '0': |
| p[0]++; |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; |
| m->mdmreg[REG_SI1] = 4; |
| info->xmit_size = |
| m->mdmreg[REG_PSIZE] * 16; |
| break; |
| #ifdef CONFIG_ISDN_TTY_FAX |
| case '1': |
| p[0]++; |
| if (!(dev->global_features & |
| ISDN_FEATURE_L3_FCLASS1)) |
| PARSE_ERROR1; |
| m->mdmreg[REG_SI1] = 1; |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; |
| m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS1; |
| info->xmit_size = |
| m->mdmreg[REG_PSIZE] * 16; |
| break; |
| case '2': |
| p[0]++; |
| if (!(dev->global_features & |
| ISDN_FEATURE_L3_FCLASS2)) |
| PARSE_ERROR1; |
| m->mdmreg[REG_SI1] = 1; |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; |
| m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS2; |
| info->xmit_size = |
| m->mdmreg[REG_PSIZE] * 16; |
| break; |
| #endif |
| case '8': |
| p[0]++; |
| /* L2 will change on dialout with si=1 */ |
| m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; |
| m->mdmreg[REG_SI1] = 5; |
| info->xmit_size = VBUF; |
| break; |
| case '?': |
| p[0]++; |
| strcpy(rs, "\r\n0,"); |
| #ifdef CONFIG_ISDN_TTY_FAX |
| if (dev->global_features & |
| ISDN_FEATURE_L3_FCLASS1) |
| strcat(rs, "1,"); |
| if (dev->global_features & |
| ISDN_FEATURE_L3_FCLASS2) |
| strcat(rs, "2,"); |
| #endif |
| strcat(rs, "8"); |
| isdn_tty_at_cout(rs, info); |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| return 0; |
| } |
| #ifdef CONFIG_ISDN_TTY_FAX |
| return (isdn_tty_cmd_PLUSF_FAX(p, info)); |
| #else |
| PARSE_ERROR1; |
| #endif |
| } |
| |
| /* |
| * Parse AT+V.. commands |
| */ |
| static int |
| isdn_tty_cmd_PLUSV(char **p, modem_info *info) |
| { |
| atemu *m = &info->emu; |
| isdn_ctrl cmd; |
| static char *vcmd[] = |
| {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL}; |
| int i; |
| int par1; |
| int par2; |
| char rs[20]; |
| |
| i = 0; |
| while (vcmd[i]) { |
| if (!strncmp(vcmd[i], p[0], 2)) { |
| p[0] += 2; |
| break; |
| } |
| i++; |
| } |
| switch (i) { |
| case 0: |
| /* AT+VNH - Auto hangup feature */ |
| switch (*p[0]) { |
| case '?': |
| p[0]++; |
| isdn_tty_at_cout("\r\n1", info); |
| break; |
| case '=': |
| p[0]++; |
| switch (*p[0]) { |
| case '1': |
| p[0]++; |
| break; |
| case '?': |
| p[0]++; |
| isdn_tty_at_cout("\r\n1", info); |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| case 1: |
| /* AT+VIP - Reset all voice parameters */ |
| isdn_tty_modem_reset_vpar(m); |
| break; |
| case 2: |
| /* AT+VLS - Select device, accept incoming call */ |
| switch (*p[0]) { |
| case '?': |
| p[0]++; |
| sprintf(rs, "\r\n%d", m->vpar[0]); |
| isdn_tty_at_cout(rs, info); |
| break; |
| case '=': |
| p[0]++; |
| switch (*p[0]) { |
| case '0': |
| p[0]++; |
| m->vpar[0] = 0; |
| break; |
| case '2': |
| p[0]++; |
| m->vpar[0] = 2; |
| break; |
| case '?': |
| p[0]++; |
| isdn_tty_at_cout("\r\n0,2", info); |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| case 3: |
| /* AT+VRX - Start recording */ |
| if (!m->vpar[0]) |
| PARSE_ERROR1; |
| if (info->online != 1) { |
| isdn_tty_modem_result(RESULT_NO_ANSWER, info); |
| return 1; |
| } |
| info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); |
| if (!info->dtmf_state) { |
| printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); |
| PARSE_ERROR1; |
| } |
| info->silence_state = isdn_audio_silence_init(info->silence_state); |
| if (!info->silence_state) { |
| printk(KERN_WARNING "isdn_tty: Couldn't malloc silence state\n"); |
| PARSE_ERROR1; |
| } |
| if (m->vpar[3] < 5) { |
| info->adpcmr = isdn_audio_adpcm_init(info->adpcmr, m->vpar[3]); |
| if (!info->adpcmr) { |
| printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); |
| PARSE_ERROR1; |
| } |
| } |
| #ifdef ISDN_DEBUG_AT |
| printk(KERN_DEBUG "AT: +VRX\n"); |
| #endif |
| info->vonline |= 1; |
| isdn_tty_modem_result(RESULT_CONNECT, info); |
| return 0; |
| break; |
| case 4: |
| /* AT+VSD - Silence detection */ |
| switch (*p[0]) { |
| case '?': |
| p[0]++; |
| sprintf(rs, "\r\n<%d>,<%d>", |
| m->vpar[1], |
| m->vpar[2]); |
| isdn_tty_at_cout(rs, info); |
| break; |
| case '=': |
| p[0]++; |
| if ((*p[0] >= '0') && (*p[0] <= '9')) { |
| par1 = isdn_getnum(p); |
| if ((par1 < 0) || (par1 > 31)) |
| PARSE_ERROR1; |
| if (*p[0] != ',') |
| PARSE_ERROR1; |
| p[0]++; |
| par2 = isdn_getnum(p); |
| if ((par2 < 0) || (par2 > 255)) |
| PARSE_ERROR1; |
| m->vpar[1] = par1; |
| m->vpar[2] = par2; |
| break; |
| } else |
| if (*p[0] == '?') { |
| p[0]++; |
| isdn_tty_at_cout("\r\n<0-31>,<0-255>", |
| info); |
| break; |
| } else |
| PARSE_ERROR1; |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| case 5: |
| /* AT+VSM - Select compression */ |
| switch (*p[0]) { |
| case '?': |
| p[0]++; |
| sprintf(rs, "\r\n<%d>,<%d><8000>", |
| m->vpar[3], |
| m->vpar[1]); |
| isdn_tty_at_cout(rs, info); |
| break; |
| case '=': |
| p[0]++; |
| switch (*p[0]) { |
| case '2': |
| case '3': |
| case '4': |
| case '5': |
| case '6': |
| par1 = isdn_getnum(p); |
| if ((par1 < 2) || (par1 > 6)) |
| PARSE_ERROR1; |
| m->vpar[3] = par1; |
| break; |
| case '?': |
| p[0]++; |
| isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n", |
| info); |
| isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n", |
| info); |
| isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n", |
| info); |
| isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n", |
| info); |
| isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n", |
| info); |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| case 6: |
| /* AT+VTX - Start sending */ |
| if (!m->vpar[0]) |
| PARSE_ERROR1; |
| if (info->online != 1) { |
| isdn_tty_modem_result(RESULT_NO_ANSWER, info); |
| return 1; |
| } |
| info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); |
| if (!info->dtmf_state) { |
| printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); |
| PARSE_ERROR1; |
| } |
| if (m->vpar[3] < 5) { |
| info->adpcms = isdn_audio_adpcm_init(info->adpcms, m->vpar[3]); |
| if (!info->adpcms) { |
| printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); |
| PARSE_ERROR1; |
| } |
| } |
| #ifdef ISDN_DEBUG_AT |
| printk(KERN_DEBUG "AT: +VTX\n"); |
| #endif |
| m->lastDLE = 0; |
| info->vonline |= 2; |
| isdn_tty_modem_result(RESULT_CONNECT, info); |
| return 0; |
| break; |
| case 7: |
| /* AT+VDD - DTMF detection */ |
| switch (*p[0]) { |
| case '?': |
| p[0]++; |
| sprintf(rs, "\r\n<%d>,<%d>", |
| m->vpar[4], |
| m->vpar[5]); |
| isdn_tty_at_cout(rs, info); |
| break; |
| case '=': |
| p[0]++; |
| if ((*p[0] >= '0') && (*p[0] <= '9')) { |
| if (info->online != 1) |
| PARSE_ERROR1; |
| par1 = isdn_getnum(p); |
| if ((par1 < 0) || (par1 > 15)) |
| PARSE_ERROR1; |
| if (*p[0] != ',') |
| PARSE_ERROR1; |
| p[0]++; |
| par2 = isdn_getnum(p); |
| if ((par2 < 0) || (par2 > 255)) |
| PARSE_ERROR1; |
| m->vpar[4] = par1; |
| m->vpar[5] = par2; |
| cmd.driver = info->isdn_driver; |
| cmd.command = ISDN_CMD_AUDIO; |
| cmd.arg = info->isdn_channel + (ISDN_AUDIO_SETDD << 8); |
| cmd.parm.num[0] = par1; |
| cmd.parm.num[1] = par2; |
| isdn_command(&cmd); |
| break; |
| } else |
| if (*p[0] == '?') { |
| p[0]++; |
| isdn_tty_at_cout("\r\n<0-15>,<0-255>", |
| info); |
| break; |
| } else |
| PARSE_ERROR1; |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| break; |
| default: |
| PARSE_ERROR1; |
| } |
| return 0; |
| } |
| #endif /* CONFIG_ISDN_AUDIO */ |
| |
| /* |
| * Parse and perform an AT-command-line. |
| */ |
| static void |
| isdn_tty_parse_at(modem_info *info) |
| { |
| atemu *m = &info->emu; |
| char *p; |
| char ds[ISDN_MSNLEN]; |
| |
| #ifdef ISDN_DEBUG_AT |
| printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd); |
| #endif |
| for (p = &m->mdmcmd[2]; *p;) { |
| switch (*p) { |
| case ' ': |
| p++; |
| break; |
| case 'A': |
| /* A - Accept incoming call */ |
| p++; |
| isdn_tty_cmd_ATA(info); |
| return; |
| case 'D': |
| /* D - Dial */ |
| if (info->msr & UART_MSR_DCD) |
| PARSE_ERROR; |
| if (info->msr & UART_MSR_RI) { |
| isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| return; |
| } |
| isdn_tty_getdial(++p, ds, sizeof ds); |
| p += strlen(p); |
| if (!strlen(m->msn)) |
| isdn_tty_modem_result(RESULT_NO_MSN_EAZ, info); |
| else if (strlen(ds)) |
| isdn_tty_dial(ds, info, m); |
| else |
| PARSE_ERROR; |
| return; |
| case 'E': |
| /* E - Turn Echo on/off */ |
| p++; |
| switch (isdn_getnum(&p)) { |
| case 0: |
| m->mdmreg[REG_ECHO] &= ~BIT_ECHO; |
| break; |
| case 1: |
| m->mdmreg[REG_ECHO] |= BIT_ECHO; |
| break; |
| default: |
| PARSE_ERROR; |
| } |
| break; |
| case 'H': |
| /* H - On/Off-hook */ |
| p++; |
| switch (*p) { |
| case '0': |
| p++; |
| isdn_tty_on_hook(info); |
| break; |
| case '1': |
| p++; |
| isdn_tty_off_hook(); |
| break; |
| default: |
| isdn_tty_on_hook(info); |
| break; |
| } |
| break; |
| case 'I': |
| /* I - Information */ |
| p++; |
| isdn_tty_at_cout("\r\nLinux ISDN", info); |
| switch (*p) { |
| case '0': |
| case '1': |
| p++; |
| break; |
| case '2': |
| p++; |
| isdn_tty_report(info); |
| break; |
| case '3': |
| p++; |
| snprintf(ds, sizeof(ds), "\r\n%d", info->emu.charge); |
| isdn_tty_at_cout(ds, info); |
| break; |
| default:; |
| } |
| break; |
| #ifdef DUMMY_HAYES_AT |
| case 'L': |
| case 'M': |
| /* only for be compilant with common scripts */ |
| /* no function */ |
| p++; |
| isdn_getnum(&p); |
| break; |
| #endif |
| case 'O': |
| /* O - Go online */ |
| p++; |
| if (info->msr & UART_MSR_DCD) |
| /* if B-Channel is up */ |
| isdn_tty_modem_result((m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) ? RESULT_CONNECT : RESULT_CONNECT64000, info); |
| else |
| isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| return; |
| case 'Q': |
| /* Q - Turn Emulator messages on/off */ |
| p++; |
| switch (isdn_getnum(&p)) { |
| case 0: |
| m->mdmreg[REG_RESP] |= BIT_RESP; |
| break; |
| case 1: |
| m->mdmreg[REG_RESP] &= ~BIT_RESP; |
| break; |
| default: |
| PARSE_ERROR; |
| } |
| break; |
| case 'S': |
| /* S - Set/Get Register */ |
| p++; |
| if (isdn_tty_cmd_ATS(&p, info)) |
| return; |
| break; |
| case 'V': |
| /* V - Numeric or ASCII Emulator-messages */ |
| p++; |
| switch (isdn_getnum(&p)) { |
| case 0: |
| m->mdmreg[REG_RESP] |= BIT_RESPNUM; |
| break; |
| case 1: |
| m->mdmreg[REG_RESP] &= ~BIT_RESPNUM; |
| break; |
| default: |
| PARSE_ERROR; |
| } |
| break; |
| case 'Z': |
| /* Z - Load Registers from Profile */ |
| p++; |
| if (info->msr & UART_MSR_DCD) { |
| info->online = 0; |
| isdn_tty_on_hook(info); |
| } |
| isdn_tty_modem_reset_regs(info, 1); |
| break; |
| case '+': |
| p++; |
| switch (*p) { |
| #ifdef CONFIG_ISDN_AUDIO |
| case 'F': |
| p++; |
| if (isdn_tty_cmd_PLUSF(&p, info)) |
| return; |
| break; |
| case 'V': |
| if ((!(m->mdmreg[REG_SI1] & 1)) || |
| (m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM)) |
| PARSE_ERROR; |
| p++; |
| if (isdn_tty_cmd_PLUSV(&p, info)) |
| return; |
| break; |
| #endif /* CONFIG_ISDN_AUDIO */ |
| case 'S': /* SUSPEND */ |
| p++; |
| isdn_tty_get_msnstr(ds, &p); |
| isdn_tty_suspend(ds, info, m); |
| break; |
| case 'R': /* RESUME */ |
| p++; |
| isdn_tty_get_msnstr(ds, &p); |
| isdn_tty_resume(ds, info, m); |
| break; |
| case 'M': /* MESSAGE */ |
| p++; |
| isdn_tty_send_msg(info, m, p); |
| break; |
| default: |
| PARSE_ERROR; |
| } |
| break; |
| case '&': |
| p++; |
| if (isdn_tty_cmd_ATand(&p, info)) |
| return; |
| break; |
| default: |
| PARSE_ERROR; |
| } |
| } |
| #ifdef CONFIG_ISDN_AUDIO |
| if (!info->vonline) |
| #endif |
| isdn_tty_modem_result(RESULT_OK, info); |
| } |
| |
| /* Need own toupper() because standard-toupper is not available |
| * within modules. |
| */ |
| #define my_toupper(c) (((c >= 'a') && (c <= 'z')) ? (c & 0xdf) : c) |
| |
| /* |
| * Perform line-editing of AT-commands |
| * |
| * Parameters: |
| * p inputbuffer |
| * count length of buffer |
| * channel index to line (minor-device) |
| */ |
| static int |
| isdn_tty_edit_at(const char *p, int count, modem_info *info) |
| { |
| atemu *m = &info->emu; |
| int total = 0; |
| u_char c; |
| char eb[2]; |
| int cnt; |
| |
| for (cnt = count; cnt > 0; p++, cnt--) { |
| c = *p; |
| total++; |
| if (c == m->mdmreg[REG_CR] || c == m->mdmreg[REG_LF]) { |
| /* Separator (CR or LF) */ |
| m->mdmcmd[m->mdmcmdl] = 0; |
| if (m->mdmreg[REG_ECHO] & BIT_ECHO) { |
| eb[0] = c; |
| eb[1] = 0; |
| isdn_tty_at_cout(eb, info); |
| } |
| if ((m->mdmcmdl >= 2) && (!(strncmp(m->mdmcmd, "AT", 2)))) |
| isdn_tty_parse_at(info); |
| m->mdmcmdl = 0; |
| continue; |
| } |
| if (c == m->mdmreg[REG_BS] && m->mdmreg[REG_BS] < 128) { |
| /* Backspace-Function */ |
| if ((m->mdmcmdl > 2) || (!m->mdmcmdl)) { |
| if (m->mdmcmdl) |
| m->mdmcmdl--; |
| if (m->mdmreg[REG_ECHO] & BIT_ECHO) |
| isdn_tty_at_cout("\b", info); |
| } |
| continue; |
| } |
| if (cmdchar(c)) { |
| if (m->mdmreg[REG_ECHO] & BIT_ECHO) { |
| eb[0] = c; |
| eb[1] = 0; |
| isdn_tty_at_cout(eb, info); |
| } |
| if (m->mdmcmdl < 255) { |
| c = my_toupper(c); |
| switch (m->mdmcmdl) { |
| case 1: |
| if (c == 'T') { |
| m->mdmcmd[m->mdmcmdl] = c; |
| m->mdmcmd[++m->mdmcmdl] = 0; |
| break; |
| } else |
| m->mdmcmdl = 0; |
| /* Fall through, check for 'A' */ |
| case 0: |
| if (c == 'A') { |
| m->mdmcmd[m->mdmcmdl] = c; |
| m->mdmcmd[++m->mdmcmdl] = 0; |
| } |
| break; |
| default: |
| m->mdmcmd[m->mdmcmdl] = c; |
| m->mdmcmd[++m->mdmcmdl] = 0; |
| } |
| } |
| } |
| } |
| return total; |
| } |
| |
| /* |
| * Switch all modem-channels who are online and got a valid |
| * escape-sequence 1.5 seconds ago, to command-mode. |
| * This function is called every second via timer-interrupt from within |
| * timer-dispatcher isdn_timer_function() |
| */ |
| void |
| isdn_tty_modem_escape(void) |
| { |
| int ton = 0; |
| int i; |
| int midx; |
| |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) |
| if (USG_MODEM(dev->usage[i]) && (midx = dev->m_idx[i]) >= 0) { |
| modem_info *info = &dev->mdm.info[midx]; |
| if (info->online) { |
| ton = 1; |
| if ((info->emu.pluscount == 3) && |
| time_after(jiffies, |
| info->emu.lastplus + PLUSWAIT2)) { |
| info->emu.pluscount = 0; |
| info->online = 0; |
| isdn_tty_modem_result(RESULT_OK, info); |
| } |
| } |
| } |
| isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, ton); |
| } |
| |
| /* |
| * Put a RING-message to all modem-channels who have the RI-bit set. |
| * This function is called every second via timer-interrupt from within |
| * timer-dispatcher isdn_timer_function() |
| */ |
| void |
| isdn_tty_modem_ring(void) |
| { |
| int ton = 0; |
| int i; |
| |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| modem_info *info = &dev->mdm.info[i]; |
| if (info->msr & UART_MSR_RI) { |
| ton = 1; |
| isdn_tty_modem_result(RESULT_RING, info); |
| } |
| } |
| isdn_timer_ctrl(ISDN_TIMER_MODEMRING, ton); |
| } |
| |
| /* |
| * For all online tty's, try sending data to |
| * the lower levels. |
| */ |
| void |
| isdn_tty_modem_xmit(void) |
| { |
| int ton = 1; |
| int i; |
| |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| modem_info *info = &dev->mdm.info[i]; |
| if (info->online) { |
| ton = 1; |
| isdn_tty_senddown(info); |
| isdn_tty_tint(info); |
| } |
| } |
| isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, ton); |
| } |
| |
| /* |
| * Check all channels if we have a 'no carrier' timeout. |
| * Timeout value is set by Register S7. |
| */ |
| void |
| isdn_tty_carrier_timeout(void) |
| { |
| int ton = 0; |
| int i; |
| |
| for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| modem_info *info = &dev->mdm.info[i]; |
| if (!info->dialing) |
| continue; |
| if (info->emu.carrierwait++ > info->emu.mdmreg[REG_WAITC]) { |
| info->dialing = 0; |
| isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| isdn_tty_modem_hup(info, 1); |
| } else |
| ton = 1; |
| } |
| isdn_timer_ctrl(ISDN_TIMER_CARRIER, ton); |
| } |
