Jiri Slaby | 1ca6711 | 2012-04-02 13:53:48 +0200 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Linux ISDN subsystem, tty functions and AT-command emulator (linklevel). |
| 3 | * |
| 4 | * Copyright 1994-1999 by Fritz Elfert (fritz@isdn4linux.de) |
| 5 | * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg |
| 6 | * |
| 7 | * This software may be used and distributed according to the terms |
| 8 | * of the GNU General Public License, incorporated herein by reference. |
| 9 | * |
| 10 | */ |
| 11 | #undef ISDN_TTY_STAT_DEBUG |
| 12 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/isdn.h> |
Jiri Slaby | 6776a2f | 2012-04-02 13:53:50 +0200 | [diff] [blame] | 14 | #include <linux/serial.h> /* ASYNC_* flags */ |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 15 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/delay.h> |
Arnd Bergmann | 72250d4 | 2010-09-14 09:35:04 +0000 | [diff] [blame] | 17 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include "isdn_common.h" |
| 19 | #include "isdn_tty.h" |
| 20 | #ifdef CONFIG_ISDN_AUDIO |
| 21 | #include "isdn_audio.h" |
| 22 | #define VBUF 0x3e0 |
| 23 | #define VBUFX (VBUF/16) |
| 24 | #endif |
| 25 | |
| 26 | #define FIX_FILE_TRANSFER |
| 27 | #define DUMMY_HAYES_AT |
| 28 | |
| 29 | /* Prototypes */ |
| 30 | |
Arnd Bergmann | 72250d4 | 2010-09-14 09:35:04 +0000 | [diff] [blame] | 31 | static DEFINE_MUTEX(modem_info_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | static int isdn_tty_edit_at(const char *, int, modem_info *); |
| 33 | static void isdn_tty_check_esc(const u_char *, u_char, int, int *, u_long *); |
| 34 | static void isdn_tty_modem_reset_regs(modem_info *, int); |
| 35 | static void isdn_tty_cmd_ATA(modem_info *); |
| 36 | static void isdn_tty_flush_buffer(struct tty_struct *); |
| 37 | static void isdn_tty_modem_result(int, modem_info *); |
| 38 | #ifdef CONFIG_ISDN_AUDIO |
| 39 | static int isdn_tty_countDLE(unsigned char *, int); |
| 40 | #endif |
| 41 | |
| 42 | /* Leave this unchanged unless you know what you do! */ |
| 43 | #define MODEM_PARANOIA_CHECK |
| 44 | #define MODEM_DO_RESTART |
| 45 | |
| 46 | static int bit2si[8] = |
| 47 | {1, 5, 7, 7, 7, 7, 7, 7}; |
| 48 | static int si2bit[8] = |
| 49 | {4, 1, 4, 4, 4, 4, 4, 4}; |
| 50 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | /* isdn_tty_try_read() is called from within isdn_tty_rcv_skb() |
| 52 | * to stuff incoming data directly into a tty's flip-buffer. This |
| 53 | * is done to speed up tty-receiving if the receive-queue is empty. |
| 54 | * This routine MUST be called with interrupts off. |
| 55 | * Return: |
| 56 | * 1 = Success |
| 57 | * 0 = Failure, data has to be buffered and later processed by |
| 58 | * isdn_tty_readmodem(). |
| 59 | */ |
| 60 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 61 | isdn_tty_try_read(modem_info *info, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | { |
Jiri Slaby | 227434f | 2013-01-03 15:53:01 +0100 | [diff] [blame] | 63 | struct tty_port *port = &info->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | int c; |
| 65 | int len; |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 66 | char last; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 68 | if (!info->online) |
| 69 | return 0; |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 70 | |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 71 | if (!(info->mcr & UART_MCR_RTS)) |
| 72 | return 0; |
| 73 | |
| 74 | len = skb->len |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | #ifdef CONFIG_ISDN_AUDIO |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 76 | + ISDN_AUDIO_SKB_DLECOUNT(skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | #endif |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 78 | ; |
| 79 | |
Jiri Slaby | 227434f | 2013-01-03 15:53:01 +0100 | [diff] [blame] | 80 | c = tty_buffer_request_room(port, len); |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 81 | if (c < len) |
| 82 | return 0; |
| 83 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | #ifdef CONFIG_ISDN_AUDIO |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 85 | if (ISDN_AUDIO_SKB_DLECOUNT(skb)) { |
| 86 | int l = skb->len; |
| 87 | unsigned char *dp = skb->data; |
| 88 | while (--l) { |
| 89 | if (*dp == DLE) |
Jiri Slaby | 92a19f9 | 2013-01-03 15:53:03 +0100 | [diff] [blame] | 90 | tty_insert_flip_char(port, DLE, 0); |
| 91 | tty_insert_flip_char(port, *dp++, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | } |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 93 | if (*dp == DLE) |
Jiri Slaby | 92a19f9 | 2013-01-03 15:53:03 +0100 | [diff] [blame] | 94 | tty_insert_flip_char(port, DLE, 0); |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 95 | last = *dp; |
| 96 | } else { |
| 97 | #endif |
| 98 | if (len > 1) |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 99 | tty_insert_flip_string(port, skb->data, len - 1); |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 100 | last = skb->data[len - 1]; |
| 101 | #ifdef CONFIG_ISDN_AUDIO |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | } |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 103 | #endif |
| 104 | if (info->emu.mdmreg[REG_CPPP] & BIT_CPPP) |
Jiri Slaby | 92a19f9 | 2013-01-03 15:53:03 +0100 | [diff] [blame] | 105 | tty_insert_flip_char(port, last, 0xFF); |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 106 | else |
Jiri Slaby | 92a19f9 | 2013-01-03 15:53:03 +0100 | [diff] [blame] | 107 | tty_insert_flip_char(port, last, TTY_NORMAL); |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 108 | tty_flip_buffer_push(port); |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 109 | kfree_skb(skb); |
| 110 | |
| 111 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | /* isdn_tty_readmodem() is called periodically from within timer-interrupt. |
| 115 | * It tries getting received data from the receive queue an stuff it into |
| 116 | * the tty's flip-buffer. |
| 117 | */ |
| 118 | void |
| 119 | isdn_tty_readmodem(void) |
| 120 | { |
| 121 | int resched = 0; |
| 122 | int midx; |
| 123 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | int r; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | modem_info *info; |
| 126 | |
| 127 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 128 | midx = dev->m_idx[i]; |
| 129 | if (midx < 0) |
| 130 | continue; |
| 131 | |
| 132 | info = &dev->mdm.info[midx]; |
| 133 | if (!info->online) |
| 134 | continue; |
| 135 | |
| 136 | r = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | #ifdef CONFIG_ISDN_AUDIO |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 138 | isdn_audio_eval_dtmf(info); |
| 139 | if ((info->vonline & 1) && (info->emu.vpar[1])) |
| 140 | isdn_audio_eval_silence(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | #endif |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 142 | if (info->mcr & UART_MCR_RTS) { |
| 143 | /* CISCO AsyncPPP Hack */ |
| 144 | if (!(info->emu.mdmreg[REG_CPPP] & BIT_CPPP)) |
| 145 | r = isdn_readbchan_tty(info->isdn_driver, |
| 146 | info->isdn_channel, |
| 147 | &info->port, 0); |
| 148 | else |
| 149 | r = isdn_readbchan_tty(info->isdn_driver, |
| 150 | info->isdn_channel, |
| 151 | &info->port, 1); |
| 152 | if (r) |
| 153 | tty_flip_buffer_push(&info->port); |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 154 | } else |
| 155 | r = 1; |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 156 | |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 157 | if (r) { |
| 158 | info->rcvsched = 0; |
| 159 | resched = 1; |
| 160 | } else |
| 161 | info->rcvsched = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | } |
| 163 | if (!resched) |
| 164 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 0); |
| 165 | } |
| 166 | |
| 167 | int |
| 168 | isdn_tty_rcv_skb(int i, int di, int channel, struct sk_buff *skb) |
| 169 | { |
| 170 | ulong flags; |
| 171 | int midx; |
| 172 | #ifdef CONFIG_ISDN_AUDIO |
| 173 | int ifmt; |
| 174 | #endif |
| 175 | modem_info *info; |
| 176 | |
| 177 | if ((midx = dev->m_idx[i]) < 0) { |
| 178 | /* if midx is invalid, packet is not for tty */ |
| 179 | return 0; |
| 180 | } |
| 181 | info = &dev->mdm.info[midx]; |
| 182 | #ifdef CONFIG_ISDN_AUDIO |
| 183 | ifmt = 1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 184 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | if ((info->vonline) && (!info->emu.vpar[4])) |
| 186 | isdn_audio_calc_dtmf(info, skb->data, skb->len, ifmt); |
| 187 | if ((info->vonline & 1) && (info->emu.vpar[1])) |
| 188 | isdn_audio_calc_silence(info, skb->data, skb->len, ifmt); |
| 189 | #endif |
| 190 | if ((info->online < 2) |
| 191 | #ifdef CONFIG_ISDN_AUDIO |
| 192 | && (!(info->vonline & 1)) |
| 193 | #endif |
| 194 | ) { |
| 195 | /* If Modem not listening, drop data */ |
| 196 | kfree_skb(skb); |
| 197 | return 1; |
| 198 | } |
| 199 | if (info->emu.mdmreg[REG_T70] & BIT_T70) { |
| 200 | if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) { |
| 201 | /* T.70 decoding: throw away the T.70 header (2 or 4 bytes) */ |
| 202 | if (skb->data[0] == 3) /* pure data packet -> 4 byte headers */ |
| 203 | skb_pull(skb, 4); |
| 204 | else |
| 205 | if (skb->data[0] == 1) /* keepalive packet -> 2 byte hdr */ |
| 206 | skb_pull(skb, 2); |
| 207 | } else |
| 208 | /* T.70 decoding: Simply throw away the T.70 header (4 bytes) */ |
| 209 | if ((skb->data[0] == 1) && ((skb->data[1] == 0) || (skb->data[1] == 1))) |
| 210 | skb_pull(skb, 4); |
| 211 | } |
| 212 | #ifdef CONFIG_ISDN_AUDIO |
| 213 | ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; |
| 214 | ISDN_AUDIO_SKB_LOCK(skb) = 0; |
| 215 | if (info->vonline & 1) { |
| 216 | /* voice conversion/compression */ |
| 217 | switch (info->emu.vpar[3]) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 218 | case 2: |
| 219 | case 3: |
| 220 | case 4: |
| 221 | /* adpcm |
| 222 | * Since compressed data takes less |
| 223 | * space, we can overwrite the buffer. |
| 224 | */ |
| 225 | skb_trim(skb, isdn_audio_xlaw2adpcm(info->adpcmr, |
| 226 | ifmt, |
| 227 | skb->data, |
| 228 | skb->data, |
| 229 | skb->len)); |
| 230 | break; |
| 231 | case 5: |
| 232 | /* a-law */ |
| 233 | if (!ifmt) |
| 234 | isdn_audio_ulaw2alaw(skb->data, skb->len); |
| 235 | break; |
| 236 | case 6: |
| 237 | /* u-law */ |
| 238 | if (ifmt) |
| 239 | isdn_audio_alaw2ulaw(skb->data, skb->len); |
| 240 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | } |
| 242 | ISDN_AUDIO_SKB_DLECOUNT(skb) = |
| 243 | isdn_tty_countDLE(skb->data, skb->len); |
| 244 | } |
| 245 | #ifdef CONFIG_ISDN_TTY_FAX |
| 246 | else { |
| 247 | if (info->faxonline & 2) { |
| 248 | isdn_tty_fax_bitorder(info, skb); |
| 249 | ISDN_AUDIO_SKB_DLECOUNT(skb) = |
| 250 | isdn_tty_countDLE(skb->data, skb->len); |
| 251 | } |
| 252 | } |
| 253 | #endif |
| 254 | #endif |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 255 | /* Try to deliver directly via tty-buf if queue is empty */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | spin_lock_irqsave(&info->readlock, flags); |
| 257 | if (skb_queue_empty(&dev->drv[di]->rpqueue[channel])) |
| 258 | if (isdn_tty_try_read(info, skb)) { |
| 259 | spin_unlock_irqrestore(&info->readlock, flags); |
| 260 | return 1; |
| 261 | } |
| 262 | /* Direct deliver failed or queue wasn't empty. |
| 263 | * Queue up for later dequeueing via timer-irq. |
| 264 | */ |
| 265 | __skb_queue_tail(&dev->drv[di]->rpqueue[channel], skb); |
| 266 | dev->drv[di]->rcvcount[channel] += |
| 267 | (skb->len |
| 268 | #ifdef CONFIG_ISDN_AUDIO |
| 269 | + ISDN_AUDIO_SKB_DLECOUNT(skb) |
| 270 | #endif |
| 271 | ); |
| 272 | spin_unlock_irqrestore(&info->readlock, flags); |
| 273 | /* Schedule dequeuing */ |
| 274 | if ((dev->modempoll) && (info->rcvsched)) |
| 275 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); |
| 276 | return 1; |
| 277 | } |
| 278 | |
Adrian Bunk | 3e206b0 | 2005-06-25 14:58:35 -0700 | [diff] [blame] | 279 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 280 | isdn_tty_cleanup_xmit(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | { |
| 282 | skb_queue_purge(&info->xmit_queue); |
| 283 | #ifdef CONFIG_ISDN_AUDIO |
| 284 | skb_queue_purge(&info->dtmf_queue); |
| 285 | #endif |
| 286 | } |
| 287 | |
| 288 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 289 | isdn_tty_tint(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | { |
| 291 | struct sk_buff *skb = skb_dequeue(&info->xmit_queue); |
| 292 | int len, slen; |
| 293 | |
| 294 | if (!skb) |
| 295 | return; |
| 296 | len = skb->len; |
| 297 | if ((slen = isdn_writebuf_skb_stub(info->isdn_driver, |
| 298 | info->isdn_channel, 1, skb)) == len) { |
Jiri Slaby | ba43294 | 2012-04-02 13:53:57 +0200 | [diff] [blame] | 299 | struct tty_struct *tty = info->port.tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | info->send_outstanding++; |
| 301 | info->msr &= ~UART_MSR_CTS; |
| 302 | info->lsr &= ~UART_LSR_TEMT; |
| 303 | tty_wakeup(tty); |
| 304 | return; |
| 305 | } |
| 306 | if (slen < 0) { |
| 307 | /* Error: no channel, already shutdown, or wrong parameter */ |
| 308 | dev_kfree_skb(skb); |
| 309 | return; |
| 310 | } |
| 311 | skb_queue_head(&info->xmit_queue, skb); |
| 312 | } |
| 313 | |
| 314 | #ifdef CONFIG_ISDN_AUDIO |
| 315 | static int |
| 316 | isdn_tty_countDLE(unsigned char *buf, int len) |
| 317 | { |
| 318 | int count = 0; |
| 319 | |
| 320 | while (len--) |
| 321 | if (*buf++ == DLE) |
| 322 | count++; |
| 323 | return count; |
| 324 | } |
| 325 | |
| 326 | /* This routine is called from within isdn_tty_write() to perform |
| 327 | * DLE-decoding when sending audio-data. |
| 328 | */ |
| 329 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 330 | isdn_tty_handleDLEdown(modem_info *info, atemu *m, int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | { |
Jiri Slaby | 82e46b3 | 2012-04-02 13:53:58 +0200 | [diff] [blame] | 332 | unsigned char *p = &info->port.xmit_buf[info->xmit_count]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | int count = 0; |
| 334 | |
| 335 | while (len > 0) { |
| 336 | if (m->lastDLE) { |
| 337 | m->lastDLE = 0; |
| 338 | switch (*p) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 339 | case DLE: |
| 340 | /* Escape code */ |
| 341 | if (len > 1) |
| 342 | memmove(p, p + 1, len - 1); |
| 343 | p--; |
| 344 | count++; |
| 345 | break; |
| 346 | case ETX: |
| 347 | /* End of data */ |
| 348 | info->vonline |= 4; |
| 349 | return count; |
| 350 | case DC4: |
| 351 | /* Abort RX */ |
| 352 | info->vonline &= ~1; |
| 353 | #ifdef ISDN_DEBUG_MODEM_VOICE |
| 354 | printk(KERN_DEBUG |
| 355 | "DLEdown: got DLE-DC4, send DLE-ETX on ttyI%d\n", |
| 356 | info->line); |
| 357 | #endif |
| 358 | isdn_tty_at_cout("\020\003", info); |
| 359 | if (!info->vonline) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | #ifdef ISDN_DEBUG_MODEM_VOICE |
| 361 | printk(KERN_DEBUG |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 362 | "DLEdown: send VCON on ttyI%d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | info->line); |
| 364 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 365 | isdn_tty_at_cout("\r\nVCON\r\n", info); |
| 366 | } |
| 367 | /* Fall through */ |
| 368 | case 'q': |
| 369 | case 's': |
| 370 | /* Silence */ |
| 371 | if (len > 1) |
| 372 | memmove(p, p + 1, len - 1); |
| 373 | p--; |
| 374 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | } |
| 376 | } else { |
| 377 | if (*p == DLE) |
| 378 | m->lastDLE = 1; |
| 379 | else |
| 380 | count++; |
| 381 | } |
| 382 | p++; |
| 383 | len--; |
| 384 | } |
| 385 | if (len < 0) { |
| 386 | printk(KERN_WARNING "isdn_tty: len<0 in DLEdown\n"); |
| 387 | return 0; |
| 388 | } |
| 389 | return count; |
| 390 | } |
| 391 | |
| 392 | /* This routine is called from within isdn_tty_write() when receiving |
| 393 | * audio-data. It interrupts receiving, if an character other than |
| 394 | * ^S or ^Q is sent. |
| 395 | */ |
| 396 | static int |
| 397 | isdn_tty_end_vrx(const char *buf, int c) |
| 398 | { |
| 399 | char ch; |
| 400 | |
| 401 | while (c--) { |
| 402 | ch = *buf; |
| 403 | if ((ch != 0x11) && (ch != 0x13)) |
| 404 | return 1; |
| 405 | buf++; |
| 406 | } |
| 407 | return 0; |
| 408 | } |
| 409 | |
| 410 | static int voice_cf[7] = |
| 411 | {0, 0, 4, 3, 2, 0, 0}; |
| 412 | |
| 413 | #endif /* CONFIG_ISDN_AUDIO */ |
| 414 | |
| 415 | /* isdn_tty_senddown() is called either directly from within isdn_tty_write() |
| 416 | * or via timer-interrupt from within isdn_tty_modem_xmit(). It pulls |
| 417 | * outgoing data from the tty's xmit-buffer, handles voice-decompression or |
| 418 | * T.70 if necessary, and finally queues it up for sending via isdn_tty_tint. |
| 419 | */ |
| 420 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 421 | isdn_tty_senddown(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | { |
| 423 | int buflen; |
| 424 | int skb_res; |
| 425 | #ifdef CONFIG_ISDN_AUDIO |
| 426 | int audio_len; |
| 427 | #endif |
| 428 | struct sk_buff *skb; |
| 429 | |
| 430 | #ifdef CONFIG_ISDN_AUDIO |
| 431 | if (info->vonline & 4) { |
| 432 | info->vonline &= ~6; |
| 433 | if (!info->vonline) { |
| 434 | #ifdef ISDN_DEBUG_MODEM_VOICE |
| 435 | printk(KERN_DEBUG |
| 436 | "senddown: send VCON on ttyI%d\n", |
| 437 | info->line); |
| 438 | #endif |
| 439 | isdn_tty_at_cout("\r\nVCON\r\n", info); |
| 440 | } |
| 441 | } |
| 442 | #endif |
| 443 | if (!(buflen = info->xmit_count)) |
| 444 | return; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 445 | if ((info->emu.mdmreg[REG_CTS] & BIT_CTS) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | info->msr &= ~UART_MSR_CTS; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 447 | info->lsr &= ~UART_LSR_TEMT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | /* info->xmit_count is modified here and in isdn_tty_write(). |
| 449 | * So we return here if isdn_tty_write() is in the |
| 450 | * critical section. |
| 451 | */ |
| 452 | atomic_inc(&info->xmit_lock); |
| 453 | if (!(atomic_dec_and_test(&info->xmit_lock))) |
| 454 | return; |
| 455 | if (info->isdn_driver < 0) { |
| 456 | info->xmit_count = 0; |
| 457 | return; |
| 458 | } |
| 459 | skb_res = dev->drv[info->isdn_driver]->interface->hl_hdrlen + 4; |
| 460 | #ifdef CONFIG_ISDN_AUDIO |
| 461 | if (info->vonline & 2) |
| 462 | audio_len = buflen * voice_cf[info->emu.vpar[3]]; |
| 463 | else |
| 464 | audio_len = 0; |
| 465 | skb = dev_alloc_skb(skb_res + buflen + audio_len); |
| 466 | #else |
| 467 | skb = dev_alloc_skb(skb_res + buflen); |
| 468 | #endif |
| 469 | if (!skb) { |
| 470 | printk(KERN_WARNING |
| 471 | "isdn_tty: Out of memory in ttyI%d senddown\n", |
| 472 | info->line); |
| 473 | return; |
| 474 | } |
| 475 | skb_reserve(skb, skb_res); |
Jiri Slaby | 82e46b3 | 2012-04-02 13:53:58 +0200 | [diff] [blame] | 476 | memcpy(skb_put(skb, buflen), info->port.xmit_buf, buflen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | info->xmit_count = 0; |
| 478 | #ifdef CONFIG_ISDN_AUDIO |
| 479 | if (info->vonline & 2) { |
| 480 | /* For now, ifmt is fixed to 1 (alaw), since this |
| 481 | * is used with ISDN everywhere in the world, except |
| 482 | * US, Canada and Japan. |
| 483 | * Later, when US-ISDN protocols are implemented, |
| 484 | * this setting will depend on the D-channel protocol. |
| 485 | */ |
| 486 | int ifmt = 1; |
| 487 | |
| 488 | /* voice conversion/decompression */ |
| 489 | switch (info->emu.vpar[3]) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 490 | case 2: |
| 491 | case 3: |
| 492 | case 4: |
| 493 | /* adpcm, compatible to ZyXel 1496 modem |
| 494 | * with ROM revision 6.01 |
| 495 | */ |
| 496 | audio_len = isdn_audio_adpcm2xlaw(info->adpcms, |
| 497 | ifmt, |
| 498 | skb->data, |
| 499 | skb_put(skb, audio_len), |
| 500 | buflen); |
| 501 | skb_pull(skb, buflen); |
| 502 | skb_trim(skb, audio_len); |
| 503 | break; |
| 504 | case 5: |
| 505 | /* a-law */ |
| 506 | if (!ifmt) |
| 507 | isdn_audio_alaw2ulaw(skb->data, |
| 508 | buflen); |
| 509 | break; |
| 510 | case 6: |
| 511 | /* u-law */ |
| 512 | if (ifmt) |
| 513 | isdn_audio_ulaw2alaw(skb->data, |
| 514 | buflen); |
| 515 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | } |
| 517 | } |
| 518 | #endif /* CONFIG_ISDN_AUDIO */ |
| 519 | if (info->emu.mdmreg[REG_T70] & BIT_T70) { |
| 520 | /* Add T.70 simplified header */ |
| 521 | if (info->emu.mdmreg[REG_T70] & BIT_T70_EXT) |
| 522 | memcpy(skb_push(skb, 2), "\1\0", 2); |
| 523 | else |
| 524 | memcpy(skb_push(skb, 4), "\1\0\1\0", 4); |
| 525 | } |
| 526 | skb_queue_tail(&info->xmit_queue, skb); |
| 527 | } |
| 528 | |
| 529 | /************************************************************ |
| 530 | * |
| 531 | * Modem-functions |
| 532 | * |
| 533 | * mostly "stolen" from original Linux-serial.c and friends. |
| 534 | * |
| 535 | ************************************************************/ |
| 536 | |
| 537 | /* The next routine is called once from within timer-interrupt |
| 538 | * triggered within isdn_tty_modem_ncarrier(). It calls |
| 539 | * isdn_tty_modem_result() to stuff a "NO CARRIER" Message |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 540 | * into the tty's buffer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | */ |
| 542 | static void |
| 543 | isdn_tty_modem_do_ncarrier(unsigned long data) |
| 544 | { |
| 545 | modem_info *info = (modem_info *) data; |
| 546 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| 547 | } |
| 548 | |
| 549 | /* Next routine is called, whenever the DTR-signal is raised. |
| 550 | * It checks the ncarrier-flag, and triggers the above routine |
| 551 | * when necessary. The ncarrier-flag is set, whenever DTR goes |
| 552 | * low. |
| 553 | */ |
| 554 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 555 | isdn_tty_modem_ncarrier(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | { |
| 557 | if (info->ncarrier) { |
| 558 | info->nc_timer.expires = jiffies + HZ; |
| 559 | add_timer(&info->nc_timer); |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | /* |
| 564 | * return the usage calculated by si and layer 2 protocol |
| 565 | */ |
Adrian Bunk | 3e206b0 | 2005-06-25 14:58:35 -0700 | [diff] [blame] | 566 | static int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | isdn_calc_usage(int si, int l2) |
| 568 | { |
| 569 | int usg = ISDN_USAGE_MODEM; |
| 570 | |
| 571 | #ifdef CONFIG_ISDN_AUDIO |
| 572 | if (si == 1) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 573 | switch (l2) { |
| 574 | case ISDN_PROTO_L2_MODEM: |
| 575 | usg = ISDN_USAGE_MODEM; |
| 576 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | #ifdef CONFIG_ISDN_TTY_FAX |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 578 | case ISDN_PROTO_L2_FAX: |
| 579 | usg = ISDN_USAGE_FAX; |
| 580 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 582 | case ISDN_PROTO_L2_TRANS: |
| 583 | default: |
| 584 | usg = ISDN_USAGE_VOICE; |
| 585 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | } |
| 587 | } |
| 588 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 589 | return (usg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | } |
| 591 | |
| 592 | /* isdn_tty_dial() performs dialing of a tty an the necessary |
| 593 | * setup of the lower levels before that. |
| 594 | */ |
| 595 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 596 | isdn_tty_dial(char *n, modem_info *info, atemu *m) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | { |
| 598 | int usg = ISDN_USAGE_MODEM; |
| 599 | int si = 7; |
| 600 | int l2 = m->mdmreg[REG_L2PROT]; |
| 601 | u_long flags; |
| 602 | isdn_ctrl cmd; |
| 603 | int i; |
| 604 | int j; |
| 605 | |
| 606 | for (j = 7; j >= 0; j--) |
| 607 | if (m->mdmreg[REG_SI1] & (1 << j)) { |
| 608 | si = bit2si[j]; |
| 609 | break; |
| 610 | } |
| 611 | usg = isdn_calc_usage(si, l2); |
| 612 | #ifdef CONFIG_ISDN_AUDIO |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 613 | if ((si == 1) && |
| 614 | (l2 != ISDN_PROTO_L2_MODEM) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | #ifdef CONFIG_ISDN_TTY_FAX |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 616 | && (l2 != ISDN_PROTO_L2_FAX) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | #endif |
| 618 | ) { |
| 619 | l2 = ISDN_PROTO_L2_TRANS; |
| 620 | usg = ISDN_USAGE_VOICE; |
| 621 | } |
| 622 | #endif |
| 623 | m->mdmreg[REG_SI1I] = si2bit[si]; |
| 624 | spin_lock_irqsave(&dev->lock, flags); |
| 625 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); |
| 626 | if (i < 0) { |
| 627 | spin_unlock_irqrestore(&dev->lock, flags); |
| 628 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); |
| 629 | } else { |
| 630 | info->isdn_driver = dev->drvmap[i]; |
| 631 | info->isdn_channel = dev->chanmap[i]; |
| 632 | info->drv_index = i; |
| 633 | dev->m_idx[i] = info->line; |
| 634 | dev->usage[i] |= ISDN_USAGE_OUTGOING; |
| 635 | info->last_dir = 1; |
| 636 | strcpy(info->last_num, n); |
| 637 | isdn_info_update(); |
| 638 | spin_unlock_irqrestore(&dev->lock, flags); |
| 639 | cmd.driver = info->isdn_driver; |
| 640 | cmd.arg = info->isdn_channel; |
| 641 | cmd.command = ISDN_CMD_CLREAZ; |
| 642 | isdn_command(&cmd); |
| 643 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); |
| 644 | cmd.driver = info->isdn_driver; |
| 645 | cmd.command = ISDN_CMD_SETEAZ; |
| 646 | isdn_command(&cmd); |
| 647 | cmd.driver = info->isdn_driver; |
| 648 | cmd.command = ISDN_CMD_SETL2; |
| 649 | info->last_l2 = l2; |
| 650 | cmd.arg = info->isdn_channel + (l2 << 8); |
| 651 | isdn_command(&cmd); |
| 652 | cmd.driver = info->isdn_driver; |
| 653 | cmd.command = ISDN_CMD_SETL3; |
| 654 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); |
| 655 | #ifdef CONFIG_ISDN_TTY_FAX |
| 656 | if (l2 == ISDN_PROTO_L2_FAX) { |
| 657 | cmd.parm.fax = info->fax; |
| 658 | info->fax->direction = ISDN_TTY_FAX_CONN_OUT; |
| 659 | } |
| 660 | #endif |
| 661 | isdn_command(&cmd); |
| 662 | cmd.driver = info->isdn_driver; |
| 663 | cmd.arg = info->isdn_channel; |
| 664 | sprintf(cmd.parm.setup.phone, "%s", n); |
| 665 | sprintf(cmd.parm.setup.eazmsn, "%s", |
| 666 | isdn_map_eaz2msn(m->msn, info->isdn_driver)); |
| 667 | cmd.parm.setup.si1 = si; |
| 668 | cmd.parm.setup.si2 = m->mdmreg[REG_SI2]; |
| 669 | cmd.command = ISDN_CMD_DIAL; |
| 670 | info->dialing = 1; |
| 671 | info->emu.carrierwait = 0; |
| 672 | strcpy(dev->num[i], n); |
| 673 | isdn_info_update(); |
| 674 | isdn_command(&cmd); |
| 675 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); |
| 676 | } |
| 677 | } |
| 678 | |
| 679 | /* isdn_tty_hangup() disassociates a tty from the real |
| 680 | * ISDN-line (hangup). The usage-status is cleared |
| 681 | * and some cleanup is done also. |
| 682 | */ |
| 683 | void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 684 | isdn_tty_modem_hup(modem_info *info, int local) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | { |
| 686 | isdn_ctrl cmd; |
| 687 | int di, ch; |
| 688 | |
| 689 | if (!info) |
| 690 | return; |
| 691 | |
| 692 | di = info->isdn_driver; |
| 693 | ch = info->isdn_channel; |
| 694 | if (di < 0 || ch < 0) |
| 695 | return; |
| 696 | |
| 697 | info->isdn_driver = -1; |
| 698 | info->isdn_channel = -1; |
| 699 | |
| 700 | #ifdef ISDN_DEBUG_MODEM_HUP |
| 701 | printk(KERN_DEBUG "Mhup ttyI%d\n", info->line); |
| 702 | #endif |
| 703 | info->rcvsched = 0; |
Jiri Slaby | ba43294 | 2012-04-02 13:53:57 +0200 | [diff] [blame] | 704 | isdn_tty_flush_buffer(info->port.tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | if (info->online) { |
| 706 | info->last_lhup = local; |
| 707 | info->online = 0; |
| 708 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| 709 | } |
| 710 | #ifdef CONFIG_ISDN_AUDIO |
| 711 | info->vonline = 0; |
| 712 | #ifdef CONFIG_ISDN_TTY_FAX |
| 713 | info->faxonline = 0; |
| 714 | info->fax->phase = ISDN_FAX_PHASE_IDLE; |
| 715 | #endif |
| 716 | info->emu.vpar[4] = 0; |
| 717 | info->emu.vpar[5] = 8; |
Jesper Juhl | 3c7208f | 2005-11-07 01:01:29 -0800 | [diff] [blame] | 718 | kfree(info->dtmf_state); |
| 719 | info->dtmf_state = NULL; |
| 720 | kfree(info->silence_state); |
| 721 | info->silence_state = NULL; |
| 722 | kfree(info->adpcms); |
| 723 | info->adpcms = NULL; |
| 724 | kfree(info->adpcmr); |
| 725 | info->adpcmr = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | #endif |
| 727 | if ((info->msr & UART_MSR_RI) && |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 728 | (info->emu.mdmreg[REG_RUNG] & BIT_RUNG)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | isdn_tty_modem_result(RESULT_RUNG, info); |
| 730 | info->msr &= ~(UART_MSR_DCD | UART_MSR_RI); |
| 731 | info->lsr |= UART_LSR_TEMT; |
| 732 | |
| 733 | if (local) { |
| 734 | cmd.driver = di; |
| 735 | cmd.command = ISDN_CMD_HANGUP; |
| 736 | cmd.arg = ch; |
| 737 | isdn_command(&cmd); |
| 738 | } |
| 739 | |
| 740 | isdn_all_eaz(di, ch); |
| 741 | info->emu.mdmreg[REG_RINGCNT] = 0; |
| 742 | isdn_free_channel(di, ch, 0); |
| 743 | |
| 744 | if (info->drv_index >= 0) { |
| 745 | dev->m_idx[info->drv_index] = -1; |
| 746 | info->drv_index = -1; |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | /* |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 751 | * Begin of a CAPI like interface, currently used only for |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | * supplementary service (CAPI 2.0 part III) |
| 753 | */ |
| 754 | #include <linux/isdn/capicmd.h> |
Paul Gortmaker | 07a97fe | 2011-08-30 12:08:51 -0400 | [diff] [blame] | 755 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | |
| 757 | int |
| 758 | isdn_tty_capi_facility(capi_msg *cm) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 759 | return (-1); /* dummy */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | } |
| 761 | |
| 762 | /* isdn_tty_suspend() tries to suspend the current tty connection |
| 763 | */ |
| 764 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 765 | isdn_tty_suspend(char *id, modem_info *info, atemu *m) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | { |
| 767 | isdn_ctrl cmd; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 768 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | int l; |
| 770 | |
| 771 | if (!info) |
| 772 | return; |
| 773 | |
| 774 | #ifdef ISDN_DEBUG_MODEM_SERVICES |
| 775 | printk(KERN_DEBUG "Msusp ttyI%d\n", info->line); |
| 776 | #endif |
| 777 | l = strlen(id); |
| 778 | if ((info->isdn_driver >= 0)) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 779 | cmd.parm.cmsg.Length = l + 18; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | cmd.parm.cmsg.Command = CAPI_FACILITY; |
| 781 | cmd.parm.cmsg.Subcommand = CAPI_REQ; |
| 782 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; |
| 783 | cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ |
| 784 | cmd.parm.cmsg.para[1] = 0; |
| 785 | cmd.parm.cmsg.para[2] = l + 3; |
| 786 | cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */ |
| 787 | cmd.parm.cmsg.para[4] = 0; |
| 788 | cmd.parm.cmsg.para[5] = l; |
| 789 | strncpy(&cmd.parm.cmsg.para[6], id, l); |
| 790 | cmd.command = CAPI_PUT_MESSAGE; |
| 791 | cmd.driver = info->isdn_driver; |
| 792 | cmd.arg = info->isdn_channel; |
| 793 | isdn_command(&cmd); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | /* isdn_tty_resume() tries to resume a suspended call |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 798 | * setup of the lower levels before that. unfortunately here is no |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | * checking for compatibility of used protocols implemented by Q931 |
| 800 | * It does the same things like isdn_tty_dial, the last command |
| 801 | * is different, may be we can merge it. |
| 802 | */ |
| 803 | |
| 804 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 805 | isdn_tty_resume(char *id, modem_info *info, atemu *m) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | { |
| 807 | int usg = ISDN_USAGE_MODEM; |
| 808 | int si = 7; |
| 809 | int l2 = m->mdmreg[REG_L2PROT]; |
| 810 | isdn_ctrl cmd; |
| 811 | ulong flags; |
| 812 | int i; |
| 813 | int j; |
| 814 | int l; |
| 815 | |
| 816 | l = strlen(id); |
| 817 | for (j = 7; j >= 0; j--) |
| 818 | if (m->mdmreg[REG_SI1] & (1 << j)) { |
| 819 | si = bit2si[j]; |
| 820 | break; |
| 821 | } |
| 822 | usg = isdn_calc_usage(si, l2); |
| 823 | #ifdef CONFIG_ISDN_AUDIO |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 824 | if ((si == 1) && |
| 825 | (l2 != ISDN_PROTO_L2_MODEM) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | #ifdef CONFIG_ISDN_TTY_FAX |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 827 | && (l2 != ISDN_PROTO_L2_FAX) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | #endif |
| 829 | ) { |
| 830 | l2 = ISDN_PROTO_L2_TRANS; |
| 831 | usg = ISDN_USAGE_VOICE; |
| 832 | } |
| 833 | #endif |
| 834 | m->mdmreg[REG_SI1I] = si2bit[si]; |
| 835 | spin_lock_irqsave(&dev->lock, flags); |
| 836 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); |
| 837 | if (i < 0) { |
| 838 | spin_unlock_irqrestore(&dev->lock, flags); |
| 839 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); |
| 840 | } else { |
| 841 | info->isdn_driver = dev->drvmap[i]; |
| 842 | info->isdn_channel = dev->chanmap[i]; |
| 843 | info->drv_index = i; |
| 844 | dev->m_idx[i] = info->line; |
| 845 | dev->usage[i] |= ISDN_USAGE_OUTGOING; |
| 846 | info->last_dir = 1; |
| 847 | // strcpy(info->last_num, n); |
| 848 | isdn_info_update(); |
| 849 | spin_unlock_irqrestore(&dev->lock, flags); |
| 850 | cmd.driver = info->isdn_driver; |
| 851 | cmd.arg = info->isdn_channel; |
| 852 | cmd.command = ISDN_CMD_CLREAZ; |
| 853 | isdn_command(&cmd); |
| 854 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); |
| 855 | cmd.driver = info->isdn_driver; |
| 856 | cmd.command = ISDN_CMD_SETEAZ; |
| 857 | isdn_command(&cmd); |
| 858 | cmd.driver = info->isdn_driver; |
| 859 | cmd.command = ISDN_CMD_SETL2; |
| 860 | info->last_l2 = l2; |
| 861 | cmd.arg = info->isdn_channel + (l2 << 8); |
| 862 | isdn_command(&cmd); |
| 863 | cmd.driver = info->isdn_driver; |
| 864 | cmd.command = ISDN_CMD_SETL3; |
| 865 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); |
| 866 | isdn_command(&cmd); |
| 867 | cmd.driver = info->isdn_driver; |
| 868 | cmd.arg = info->isdn_channel; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 869 | cmd.parm.cmsg.Length = l + 18; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | cmd.parm.cmsg.Command = CAPI_FACILITY; |
| 871 | cmd.parm.cmsg.Subcommand = CAPI_REQ; |
| 872 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; |
| 873 | cmd.parm.cmsg.para[0] = 3; /* 16 bit 0x0003 suplementary service */ |
| 874 | cmd.parm.cmsg.para[1] = 0; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 875 | cmd.parm.cmsg.para[2] = l + 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */ |
| 877 | cmd.parm.cmsg.para[4] = 0; |
| 878 | cmd.parm.cmsg.para[5] = l; |
| 879 | strncpy(&cmd.parm.cmsg.para[6], id, l); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 880 | cmd.command = CAPI_PUT_MESSAGE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | info->dialing = 1; |
| 882 | // strcpy(dev->num[i], n); |
| 883 | isdn_info_update(); |
| 884 | isdn_command(&cmd); |
| 885 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); |
| 886 | } |
| 887 | } |
| 888 | |
| 889 | /* isdn_tty_send_msg() sends a message to a HL driver |
| 890 | * This is used for hybrid modem cards to send AT commands to it |
| 891 | */ |
| 892 | |
| 893 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 894 | isdn_tty_send_msg(modem_info *info, atemu *m, char *msg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | { |
| 896 | int usg = ISDN_USAGE_MODEM; |
| 897 | int si = 7; |
| 898 | int l2 = m->mdmreg[REG_L2PROT]; |
| 899 | isdn_ctrl cmd; |
| 900 | ulong flags; |
| 901 | int i; |
| 902 | int j; |
| 903 | int l; |
| 904 | |
Chen Gang | f394793 | 2013-03-07 18:25:41 +0000 | [diff] [blame] | 905 | l = min(strlen(msg), sizeof(cmd.parm) - sizeof(cmd.parm.cmsg) |
| 906 | + sizeof(cmd.parm.cmsg.para) - 2); |
| 907 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | if (!l) { |
| 909 | isdn_tty_modem_result(RESULT_ERROR, info); |
| 910 | return; |
| 911 | } |
| 912 | for (j = 7; j >= 0; j--) |
| 913 | if (m->mdmreg[REG_SI1] & (1 << j)) { |
| 914 | si = bit2si[j]; |
| 915 | break; |
| 916 | } |
| 917 | usg = isdn_calc_usage(si, l2); |
| 918 | #ifdef CONFIG_ISDN_AUDIO |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 919 | if ((si == 1) && |
| 920 | (l2 != ISDN_PROTO_L2_MODEM) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | #ifdef CONFIG_ISDN_TTY_FAX |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 922 | && (l2 != ISDN_PROTO_L2_FAX) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | #endif |
| 924 | ) { |
| 925 | l2 = ISDN_PROTO_L2_TRANS; |
| 926 | usg = ISDN_USAGE_VOICE; |
| 927 | } |
| 928 | #endif |
| 929 | m->mdmreg[REG_SI1I] = si2bit[si]; |
| 930 | spin_lock_irqsave(&dev->lock, flags); |
| 931 | i = isdn_get_free_channel(usg, l2, m->mdmreg[REG_L3PROT], -1, -1, m->msn); |
| 932 | if (i < 0) { |
| 933 | spin_unlock_irqrestore(&dev->lock, flags); |
| 934 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); |
| 935 | } else { |
| 936 | info->isdn_driver = dev->drvmap[i]; |
| 937 | info->isdn_channel = dev->chanmap[i]; |
| 938 | info->drv_index = i; |
| 939 | dev->m_idx[i] = info->line; |
| 940 | dev->usage[i] |= ISDN_USAGE_OUTGOING; |
| 941 | info->last_dir = 1; |
| 942 | isdn_info_update(); |
| 943 | spin_unlock_irqrestore(&dev->lock, flags); |
| 944 | cmd.driver = info->isdn_driver; |
| 945 | cmd.arg = info->isdn_channel; |
| 946 | cmd.command = ISDN_CMD_CLREAZ; |
| 947 | isdn_command(&cmd); |
| 948 | strcpy(cmd.parm.num, isdn_map_eaz2msn(m->msn, info->isdn_driver)); |
| 949 | cmd.driver = info->isdn_driver; |
| 950 | cmd.command = ISDN_CMD_SETEAZ; |
| 951 | isdn_command(&cmd); |
| 952 | cmd.driver = info->isdn_driver; |
| 953 | cmd.command = ISDN_CMD_SETL2; |
| 954 | info->last_l2 = l2; |
| 955 | cmd.arg = info->isdn_channel + (l2 << 8); |
| 956 | isdn_command(&cmd); |
| 957 | cmd.driver = info->isdn_driver; |
| 958 | cmd.command = ISDN_CMD_SETL3; |
| 959 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); |
| 960 | isdn_command(&cmd); |
| 961 | cmd.driver = info->isdn_driver; |
| 962 | cmd.arg = info->isdn_channel; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 963 | cmd.parm.cmsg.Length = l + 14; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | cmd.parm.cmsg.Command = CAPI_MANUFACTURER; |
| 965 | cmd.parm.cmsg.Subcommand = CAPI_REQ; |
| 966 | cmd.parm.cmsg.adr.Controller = info->isdn_driver + 1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 967 | cmd.parm.cmsg.para[0] = l + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | strncpy(&cmd.parm.cmsg.para[1], msg, l); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 969 | cmd.parm.cmsg.para[l + 1] = 0xd; |
| 970 | cmd.command = CAPI_PUT_MESSAGE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | /* info->dialing = 1; |
| 972 | strcpy(dev->num[i], n); |
| 973 | isdn_info_update(); |
| 974 | */ |
| 975 | isdn_command(&cmd); |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | static inline int |
| 980 | isdn_tty_paranoia_check(modem_info *info, char *name, const char *routine) |
| 981 | { |
| 982 | #ifdef MODEM_PARANOIA_CHECK |
| 983 | if (!info) { |
| 984 | printk(KERN_WARNING "isdn_tty: null info_struct for %s in %s\n", |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 985 | name, routine); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 986 | return 1; |
| 987 | } |
| 988 | if (info->magic != ISDN_ASYNC_MAGIC) { |
| 989 | printk(KERN_WARNING "isdn_tty: bad magic for modem struct %s in %s\n", |
| 990 | name, routine); |
| 991 | return 1; |
| 992 | } |
| 993 | #endif |
| 994 | return 0; |
| 995 | } |
| 996 | |
| 997 | /* |
| 998 | * This routine is called to set the UART divisor registers to match |
| 999 | * the specified baud rate for a serial port. |
| 1000 | */ |
| 1001 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1002 | isdn_tty_change_speed(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | { |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1004 | struct tty_port *port = &info->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | uint cflag, |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1006 | cval, |
| 1007 | quot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | int i; |
| 1009 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1010 | if (!port->tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | return; |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1012 | cflag = port->tty->termios.c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | |
| 1014 | quot = i = cflag & CBAUD; |
| 1015 | if (i & CBAUDEX) { |
| 1016 | i &= ~CBAUDEX; |
| 1017 | if (i < 1 || i > 2) |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1018 | port->tty->termios.c_cflag &= ~CBAUDEX; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | else |
| 1020 | i += 15; |
| 1021 | } |
| 1022 | if (quot) { |
| 1023 | info->mcr |= UART_MCR_DTR; |
| 1024 | isdn_tty_modem_ncarrier(info); |
| 1025 | } else { |
| 1026 | info->mcr &= ~UART_MCR_DTR; |
| 1027 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { |
| 1028 | #ifdef ISDN_DEBUG_MODEM_HUP |
| 1029 | printk(KERN_DEBUG "Mhup in changespeed\n"); |
| 1030 | #endif |
| 1031 | if (info->online) |
| 1032 | info->ncarrier = 1; |
| 1033 | isdn_tty_modem_reset_regs(info, 0); |
| 1034 | isdn_tty_modem_hup(info, 1); |
| 1035 | } |
| 1036 | return; |
| 1037 | } |
| 1038 | /* byte size and parity */ |
| 1039 | cval = cflag & (CSIZE | CSTOPB); |
| 1040 | cval >>= 4; |
| 1041 | if (cflag & PARENB) |
| 1042 | cval |= UART_LCR_PARITY; |
| 1043 | if (!(cflag & PARODD)) |
| 1044 | cval |= UART_LCR_EPAR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | |
Peter Hurley | 2d68655 | 2016-04-09 17:53:23 -0700 | [diff] [blame] | 1046 | tty_port_set_check_carrier(port, ~cflag & CLOCAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1047 | } |
| 1048 | |
| 1049 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1050 | isdn_tty_startup(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | { |
Peter Hurley | d41861c | 2016-04-09 17:53:25 -0700 | [diff] [blame] | 1052 | if (tty_port_initialized(&info->port)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | return 0; |
| 1054 | isdn_lock_drivers(); |
| 1055 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1056 | printk(KERN_DEBUG "starting up ttyi%d ...\n", info->line); |
| 1057 | #endif |
| 1058 | /* |
| 1059 | * Now, initialize the UART |
| 1060 | */ |
| 1061 | info->mcr = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2; |
Jiri Slaby | ba43294 | 2012-04-02 13:53:57 +0200 | [diff] [blame] | 1062 | if (info->port.tty) |
| 1063 | clear_bit(TTY_IO_ERROR, &info->port.tty->flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | /* |
| 1065 | * and set the speed of the serial port |
| 1066 | */ |
| 1067 | isdn_tty_change_speed(info); |
| 1068 | |
Peter Hurley | d41861c | 2016-04-09 17:53:25 -0700 | [diff] [blame] | 1069 | tty_port_set_initialized(&info->port, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | info->msr |= (UART_MSR_DSR | UART_MSR_CTS); |
| 1071 | info->send_outstanding = 0; |
| 1072 | return 0; |
| 1073 | } |
| 1074 | |
| 1075 | /* |
| 1076 | * This routine will shutdown a serial port; interrupts are disabled, and |
| 1077 | * DTR is dropped if the hangup on close termio flag is on. |
| 1078 | */ |
| 1079 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1080 | isdn_tty_shutdown(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | { |
Peter Hurley | d41861c | 2016-04-09 17:53:25 -0700 | [diff] [blame] | 1082 | if (!tty_port_initialized(&info->port)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | return; |
| 1084 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1085 | printk(KERN_DEBUG "Shutting down isdnmodem port %d ....\n", info->line); |
| 1086 | #endif |
| 1087 | isdn_unlock_drivers(); |
| 1088 | info->msr &= ~UART_MSR_RI; |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1089 | if (!info->port.tty || (info->port.tty->termios.c_cflag & HUPCL)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1090 | info->mcr &= ~(UART_MCR_DTR | UART_MCR_RTS); |
| 1091 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { |
| 1092 | isdn_tty_modem_reset_regs(info, 0); |
| 1093 | #ifdef ISDN_DEBUG_MODEM_HUP |
| 1094 | printk(KERN_DEBUG "Mhup in isdn_tty_shutdown\n"); |
| 1095 | #endif |
| 1096 | isdn_tty_modem_hup(info, 1); |
| 1097 | } |
| 1098 | } |
Jiri Slaby | ba43294 | 2012-04-02 13:53:57 +0200 | [diff] [blame] | 1099 | if (info->port.tty) |
| 1100 | set_bit(TTY_IO_ERROR, &info->port.tty->flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | |
Peter Hurley | d41861c | 2016-04-09 17:53:25 -0700 | [diff] [blame] | 1102 | tty_port_set_initialized(&info->port, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1103 | } |
| 1104 | |
| 1105 | /* isdn_tty_write() is the main send-routine. It is called from the upper |
| 1106 | * levels within the kernel to perform sending data. Depending on the |
| 1107 | * online-flag it either directs output to the at-command-interpreter or |
| 1108 | * to the lower level. Additional tasks done here: |
| 1109 | * - If online, check for escape-sequence (+++) |
| 1110 | * - If sending audio-data, call isdn_tty_DLEdown() to parse DLE-codes. |
| 1111 | * - If receiving audio-data, call isdn_tty_end_vrx() to abort if needed. |
| 1112 | * - If dialing, abort dial. |
| 1113 | */ |
| 1114 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1115 | isdn_tty_write(struct tty_struct *tty, const u_char *buf, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1116 | { |
| 1117 | int c; |
| 1118 | int total = 0; |
| 1119 | modem_info *info = (modem_info *) tty->driver_data; |
| 1120 | atemu *m = &info->emu; |
| 1121 | |
| 1122 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write")) |
| 1123 | return 0; |
| 1124 | /* See isdn_tty_senddown() */ |
| 1125 | atomic_inc(&info->xmit_lock); |
| 1126 | while (1) { |
| 1127 | c = count; |
| 1128 | if (c > info->xmit_size - info->xmit_count) |
| 1129 | c = info->xmit_size - info->xmit_count; |
| 1130 | if (info->isdn_driver >= 0 && c > dev->drv[info->isdn_driver]->maxbufsize) |
| 1131 | c = dev->drv[info->isdn_driver]->maxbufsize; |
| 1132 | if (c <= 0) |
| 1133 | break; |
| 1134 | if ((info->online > 1) |
| 1135 | #ifdef CONFIG_ISDN_AUDIO |
| 1136 | || (info->vonline & 3) |
| 1137 | #endif |
| 1138 | ) { |
| 1139 | #ifdef CONFIG_ISDN_AUDIO |
| 1140 | if (!info->vonline) |
| 1141 | #endif |
| 1142 | isdn_tty_check_esc(buf, m->mdmreg[REG_ESC], c, |
| 1143 | &(m->pluscount), |
| 1144 | &(m->lastplus)); |
Jiri Slaby | 82e46b3 | 2012-04-02 13:53:58 +0200 | [diff] [blame] | 1145 | memcpy(&info->port.xmit_buf[info->xmit_count], buf, c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | #ifdef CONFIG_ISDN_AUDIO |
| 1147 | if (info->vonline) { |
| 1148 | int cc = isdn_tty_handleDLEdown(info, m, c); |
| 1149 | if (info->vonline & 2) { |
| 1150 | if (!cc) { |
| 1151 | /* If DLE decoding results in zero-transmit, but |
| 1152 | * c originally was non-zero, do a wakeup. |
| 1153 | */ |
| 1154 | tty_wakeup(tty); |
| 1155 | info->msr |= UART_MSR_CTS; |
| 1156 | info->lsr |= UART_LSR_TEMT; |
| 1157 | } |
| 1158 | info->xmit_count += cc; |
| 1159 | } |
| 1160 | if ((info->vonline & 3) == 1) { |
| 1161 | /* Do NOT handle Ctrl-Q or Ctrl-S |
| 1162 | * when in full-duplex audio mode. |
| 1163 | */ |
| 1164 | if (isdn_tty_end_vrx(buf, c)) { |
| 1165 | info->vonline &= ~1; |
| 1166 | #ifdef ISDN_DEBUG_MODEM_VOICE |
| 1167 | printk(KERN_DEBUG |
| 1168 | "got !^Q/^S, send DLE-ETX,VCON on ttyI%d\n", |
| 1169 | info->line); |
| 1170 | #endif |
| 1171 | isdn_tty_at_cout("\020\003\r\nVCON\r\n", info); |
| 1172 | } |
| 1173 | } |
| 1174 | } else |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1175 | if (TTY_IS_FCLASS1(info)) { |
| 1176 | int cc = isdn_tty_handleDLEdown(info, m, c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1178 | if (info->vonline & 4) { /* ETX seen */ |
| 1179 | isdn_ctrl c; |
| 1180 | |
| 1181 | c.command = ISDN_CMD_FAXCMD; |
| 1182 | c.driver = info->isdn_driver; |
| 1183 | c.arg = info->isdn_channel; |
| 1184 | c.parm.aux.cmd = ISDN_FAX_CLASS1_CTRL; |
| 1185 | c.parm.aux.subcmd = ETX; |
| 1186 | isdn_command(&c); |
| 1187 | } |
| 1188 | info->vonline = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1189 | #ifdef ISDN_DEBUG_MODEM_VOICE |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1190 | printk(KERN_DEBUG "fax dle cc/c %d/%d\n", cc, c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1191 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1192 | info->xmit_count += cc; |
| 1193 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1195 | info->xmit_count += c; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | } else { |
| 1197 | info->msr |= UART_MSR_CTS; |
| 1198 | info->lsr |= UART_LSR_TEMT; |
| 1199 | if (info->dialing) { |
| 1200 | info->dialing = 0; |
| 1201 | #ifdef ISDN_DEBUG_MODEM_HUP |
| 1202 | printk(KERN_DEBUG "Mhup in isdn_tty_write\n"); |
| 1203 | #endif |
| 1204 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| 1205 | isdn_tty_modem_hup(info, 1); |
| 1206 | } else |
| 1207 | c = isdn_tty_edit_at(buf, c, info); |
| 1208 | } |
| 1209 | buf += c; |
| 1210 | count -= c; |
| 1211 | total += c; |
| 1212 | } |
| 1213 | atomic_dec(&info->xmit_lock); |
David S. Miller | b03efcf | 2005-07-08 14:57:23 -0700 | [diff] [blame] | 1214 | if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1215 | if (m->mdmreg[REG_DXMT] & BIT_DXMT) { |
| 1216 | isdn_tty_senddown(info); |
| 1217 | isdn_tty_tint(info); |
| 1218 | } |
| 1219 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); |
| 1220 | } |
| 1221 | return total; |
| 1222 | } |
| 1223 | |
| 1224 | static int |
| 1225 | isdn_tty_write_room(struct tty_struct *tty) |
| 1226 | { |
| 1227 | modem_info *info = (modem_info *) tty->driver_data; |
| 1228 | int ret; |
| 1229 | |
| 1230 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_write_room")) |
| 1231 | return 0; |
| 1232 | if (!info->online) |
| 1233 | return info->xmit_size; |
| 1234 | ret = info->xmit_size - info->xmit_count; |
| 1235 | return (ret < 0) ? 0 : ret; |
| 1236 | } |
| 1237 | |
| 1238 | static int |
| 1239 | isdn_tty_chars_in_buffer(struct tty_struct *tty) |
| 1240 | { |
| 1241 | modem_info *info = (modem_info *) tty->driver_data; |
| 1242 | |
| 1243 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_chars_in_buffer")) |
| 1244 | return 0; |
| 1245 | if (!info->online) |
| 1246 | return 0; |
| 1247 | return (info->xmit_count); |
| 1248 | } |
| 1249 | |
| 1250 | static void |
| 1251 | isdn_tty_flush_buffer(struct tty_struct *tty) |
| 1252 | { |
| 1253 | modem_info *info; |
| 1254 | |
| 1255 | if (!tty) { |
| 1256 | return; |
| 1257 | } |
| 1258 | info = (modem_info *) tty->driver_data; |
| 1259 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_buffer")) { |
| 1260 | return; |
| 1261 | } |
| 1262 | isdn_tty_cleanup_xmit(info); |
| 1263 | info->xmit_count = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1264 | tty_wakeup(tty); |
| 1265 | } |
| 1266 | |
| 1267 | static void |
| 1268 | isdn_tty_flush_chars(struct tty_struct *tty) |
| 1269 | { |
| 1270 | modem_info *info = (modem_info *) tty->driver_data; |
| 1271 | |
| 1272 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_flush_chars")) |
| 1273 | return; |
David S. Miller | b03efcf | 2005-07-08 14:57:23 -0700 | [diff] [blame] | 1274 | if ((info->xmit_count) || !skb_queue_empty(&info->xmit_queue)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, 1); |
| 1276 | } |
| 1277 | |
| 1278 | /* |
| 1279 | * ------------------------------------------------------------ |
| 1280 | * isdn_tty_throttle() |
| 1281 | * |
| 1282 | * This routine is called by the upper-layer tty layer to signal that |
| 1283 | * incoming characters should be throttled. |
| 1284 | * ------------------------------------------------------------ |
| 1285 | */ |
| 1286 | static void |
| 1287 | isdn_tty_throttle(struct tty_struct *tty) |
| 1288 | { |
| 1289 | modem_info *info = (modem_info *) tty->driver_data; |
| 1290 | |
| 1291 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_throttle")) |
| 1292 | return; |
| 1293 | if (I_IXOFF(tty)) |
| 1294 | info->x_char = STOP_CHAR(tty); |
| 1295 | info->mcr &= ~UART_MCR_RTS; |
| 1296 | } |
| 1297 | |
| 1298 | static void |
| 1299 | isdn_tty_unthrottle(struct tty_struct *tty) |
| 1300 | { |
| 1301 | modem_info *info = (modem_info *) tty->driver_data; |
| 1302 | |
| 1303 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_unthrottle")) |
| 1304 | return; |
| 1305 | if (I_IXOFF(tty)) { |
| 1306 | if (info->x_char) |
| 1307 | info->x_char = 0; |
| 1308 | else |
| 1309 | info->x_char = START_CHAR(tty); |
| 1310 | } |
| 1311 | info->mcr |= UART_MCR_RTS; |
| 1312 | } |
| 1313 | |
| 1314 | /* |
| 1315 | * ------------------------------------------------------------ |
| 1316 | * isdn_tty_ioctl() and friends |
| 1317 | * ------------------------------------------------------------ |
| 1318 | */ |
| 1319 | |
| 1320 | /* |
| 1321 | * isdn_tty_get_lsr_info - get line status register info |
| 1322 | * |
| 1323 | * Purpose: Let user call ioctl() to get info when the UART physically |
| 1324 | * is emptied. On bus types like RS485, the transmitter must |
| 1325 | * release the bus after transmitting. This must be done when |
| 1326 | * the transmit shift register is empty, not be done when the |
| 1327 | * transmit holding register is empty. This functionality |
| 1328 | * allows RS485 driver to be written in user space. |
| 1329 | */ |
| 1330 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1331 | isdn_tty_get_lsr_info(modem_info *info, uint __user *value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | { |
| 1333 | u_char status; |
| 1334 | uint result; |
| 1335 | |
| 1336 | status = info->lsr; |
| 1337 | result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0); |
| 1338 | return put_user(result, value); |
| 1339 | } |
| 1340 | |
| 1341 | |
| 1342 | static int |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 1343 | isdn_tty_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1344 | { |
| 1345 | modem_info *info = (modem_info *) tty->driver_data; |
| 1346 | u_char control, status; |
| 1347 | |
Harvey Harrison | 156f1ed | 2008-04-28 02:14:40 -0700 | [diff] [blame] | 1348 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | return -ENODEV; |
Peter Hurley | 18900ca | 2016-04-09 17:06:48 -0700 | [diff] [blame] | 1350 | if (tty_io_error(tty)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | return -EIO; |
| 1352 | |
Arnd Bergmann | 72250d4 | 2010-09-14 09:35:04 +0000 | [diff] [blame] | 1353 | mutex_lock(&modem_info_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
| 1355 | printk(KERN_DEBUG "ttyI%d ioctl TIOCMGET\n", info->line); |
| 1356 | #endif |
| 1357 | |
| 1358 | control = info->mcr; |
| 1359 | status = info->msr; |
Arnd Bergmann | 72250d4 | 2010-09-14 09:35:04 +0000 | [diff] [blame] | 1360 | mutex_unlock(&modem_info_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0) |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1362 | | ((control & UART_MCR_DTR) ? TIOCM_DTR : 0) |
| 1363 | | ((status & UART_MSR_DCD) ? TIOCM_CAR : 0) |
| 1364 | | ((status & UART_MSR_RI) ? TIOCM_RNG : 0) |
| 1365 | | ((status & UART_MSR_DSR) ? TIOCM_DSR : 0) |
| 1366 | | ((status & UART_MSR_CTS) ? TIOCM_CTS : 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | } |
| 1368 | |
| 1369 | static int |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 1370 | isdn_tty_tiocmset(struct tty_struct *tty, |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1371 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | { |
| 1373 | modem_info *info = (modem_info *) tty->driver_data; |
| 1374 | |
Harvey Harrison | 156f1ed | 2008-04-28 02:14:40 -0700 | [diff] [blame] | 1375 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | return -ENODEV; |
Peter Hurley | 18900ca | 2016-04-09 17:06:48 -0700 | [diff] [blame] | 1377 | if (tty_io_error(tty)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1378 | return -EIO; |
| 1379 | |
| 1380 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
| 1381 | printk(KERN_DEBUG "ttyI%d ioctl TIOCMxxx: %x %x\n", info->line, set, clear); |
| 1382 | #endif |
| 1383 | |
Arnd Bergmann | 72250d4 | 2010-09-14 09:35:04 +0000 | [diff] [blame] | 1384 | mutex_lock(&modem_info_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1385 | if (set & TIOCM_RTS) |
| 1386 | info->mcr |= UART_MCR_RTS; |
| 1387 | if (set & TIOCM_DTR) { |
| 1388 | info->mcr |= UART_MCR_DTR; |
| 1389 | isdn_tty_modem_ncarrier(info); |
| 1390 | } |
| 1391 | |
| 1392 | if (clear & TIOCM_RTS) |
| 1393 | info->mcr &= ~UART_MCR_RTS; |
| 1394 | if (clear & TIOCM_DTR) { |
| 1395 | info->mcr &= ~UART_MCR_DTR; |
| 1396 | if (info->emu.mdmreg[REG_DTRHUP] & BIT_DTRHUP) { |
| 1397 | isdn_tty_modem_reset_regs(info, 0); |
| 1398 | #ifdef ISDN_DEBUG_MODEM_HUP |
| 1399 | printk(KERN_DEBUG "Mhup in TIOCMSET\n"); |
| 1400 | #endif |
| 1401 | if (info->online) |
| 1402 | info->ncarrier = 1; |
| 1403 | isdn_tty_modem_hup(info, 1); |
| 1404 | } |
| 1405 | } |
Arnd Bergmann | 72250d4 | 2010-09-14 09:35:04 +0000 | [diff] [blame] | 1406 | mutex_unlock(&modem_info_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | return 0; |
| 1408 | } |
| 1409 | |
| 1410 | static int |
Alan Cox | 6caa76b | 2011-02-14 16:27:22 +0000 | [diff] [blame] | 1411 | isdn_tty_ioctl(struct tty_struct *tty, uint cmd, ulong arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | { |
| 1413 | modem_info *info = (modem_info *) tty->driver_data; |
| 1414 | int retval; |
| 1415 | |
| 1416 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_ioctl")) |
| 1417 | return -ENODEV; |
Peter Hurley | 18900ca | 2016-04-09 17:06:48 -0700 | [diff] [blame] | 1418 | if (tty_io_error(tty)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1419 | return -EIO; |
| 1420 | switch (cmd) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1421 | case TCSBRK: /* SVID version: non-zero arg --> no break */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1422 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1423 | printk(KERN_DEBUG "ttyI%d ioctl TCSBRK\n", info->line); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1425 | retval = tty_check_change(tty); |
| 1426 | if (retval) |
| 1427 | return retval; |
| 1428 | tty_wait_until_sent(tty, 0); |
| 1429 | return 0; |
| 1430 | case TCSBRKP: /* support for POSIX tcsendbreak() */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1431 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1432 | printk(KERN_DEBUG "ttyI%d ioctl TCSBRKP\n", info->line); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1433 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1434 | retval = tty_check_change(tty); |
| 1435 | if (retval) |
| 1436 | return retval; |
| 1437 | tty_wait_until_sent(tty, 0); |
| 1438 | return 0; |
| 1439 | case TIOCSERGETLSR: /* Get line status register */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1441 | printk(KERN_DEBUG "ttyI%d ioctl TIOCSERGETLSR\n", info->line); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1443 | return isdn_tty_get_lsr_info(info, (uint __user *) arg); |
| 1444 | default: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1445 | #ifdef ISDN_DEBUG_MODEM_IOCTL |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1446 | printk(KERN_DEBUG "UNKNOWN ioctl 0x%08x on ttyi%d\n", cmd, info->line); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1447 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1448 | return -ENOIOCTLCMD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | } |
| 1450 | return 0; |
| 1451 | } |
| 1452 | |
| 1453 | static void |
Alan Cox | 606d099 | 2006-12-08 02:38:45 -0800 | [diff] [blame] | 1454 | isdn_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | { |
| 1456 | modem_info *info = (modem_info *) tty->driver_data; |
| 1457 | |
| 1458 | if (!old_termios) |
| 1459 | isdn_tty_change_speed(info); |
| 1460 | else { |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1461 | if (tty->termios.c_cflag == old_termios->c_cflag && |
| 1462 | tty->termios.c_ispeed == old_termios->c_ispeed && |
| 1463 | tty->termios.c_ospeed == old_termios->c_ospeed) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | return; |
| 1465 | isdn_tty_change_speed(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | } |
| 1467 | } |
| 1468 | |
| 1469 | /* |
| 1470 | * ------------------------------------------------------------ |
| 1471 | * isdn_tty_open() and friends |
| 1472 | * ------------------------------------------------------------ |
| 1473 | */ |
Jiri Slaby | 042b9e7 | 2012-04-02 13:54:01 +0200 | [diff] [blame] | 1474 | |
Jiri Slaby | f7e0405 | 2012-08-07 21:47:59 +0200 | [diff] [blame] | 1475 | static int isdn_tty_install(struct tty_driver *driver, struct tty_struct *tty) |
| 1476 | { |
| 1477 | modem_info *info = &dev->mdm.info[tty->index]; |
| 1478 | |
| 1479 | if (isdn_tty_paranoia_check(info, tty->name, __func__)) |
| 1480 | return -ENODEV; |
| 1481 | |
| 1482 | tty->driver_data = info; |
| 1483 | |
| 1484 | return tty_port_install(&info->port, driver, tty); |
| 1485 | } |
| 1486 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | /* |
| 1488 | * This routine is called whenever a serial port is opened. It |
| 1489 | * enables interrupts for a serial port, linking in its async structure into |
| 1490 | * the IRQ chain. It also performs the serial-specific |
| 1491 | * initialization for the tty structure. |
| 1492 | */ |
| 1493 | static int |
| 1494 | isdn_tty_open(struct tty_struct *tty, struct file *filp) |
| 1495 | { |
Jiri Slaby | f7e0405 | 2012-08-07 21:47:59 +0200 | [diff] [blame] | 1496 | modem_info *info = tty->driver_data; |
| 1497 | struct tty_port *port = &info->port; |
Jiri Slaby | 410235f | 2012-03-05 14:52:01 +0100 | [diff] [blame] | 1498 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | #ifdef ISDN_DEBUG_MODEM_OPEN |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1501 | printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name, |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1502 | port->count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | #endif |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1504 | port->count++; |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1505 | port->tty = tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1506 | /* |
| 1507 | * Start up serial port |
| 1508 | */ |
| 1509 | retval = isdn_tty_startup(info); |
| 1510 | if (retval) { |
| 1511 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1512 | printk(KERN_DEBUG "isdn_tty_open return after startup\n"); |
| 1513 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | return retval; |
| 1515 | } |
Jiri Slaby | 875d54a | 2012-04-02 13:54:02 +0200 | [diff] [blame] | 1516 | retval = tty_port_block_til_ready(port, tty, filp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1517 | if (retval) { |
| 1518 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1519 | printk(KERN_DEBUG "isdn_tty_open return after isdn_tty_block_til_ready \n"); |
| 1520 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1521 | return retval; |
| 1522 | } |
| 1523 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1524 | printk(KERN_DEBUG "isdn_tty_open ttyi%d successful...\n", info->line); |
| 1525 | #endif |
| 1526 | dev->modempoll++; |
| 1527 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1528 | printk(KERN_DEBUG "isdn_tty_open normal exit\n"); |
| 1529 | #endif |
| 1530 | return 0; |
| 1531 | } |
| 1532 | |
| 1533 | static void |
| 1534 | isdn_tty_close(struct tty_struct *tty, struct file *filp) |
| 1535 | { |
| 1536 | modem_info *info = (modem_info *) tty->driver_data; |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1537 | struct tty_port *port = &info->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | ulong timeout; |
| 1539 | |
| 1540 | if (!info || isdn_tty_paranoia_check(info, tty->name, "isdn_tty_close")) |
| 1541 | return; |
| 1542 | if (tty_hung_up_p(filp)) { |
| 1543 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1544 | printk(KERN_DEBUG "isdn_tty_close return after tty_hung_up_p\n"); |
| 1545 | #endif |
| 1546 | return; |
| 1547 | } |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1548 | if ((tty->count == 1) && (port->count != 1)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1549 | /* |
| 1550 | * Uh, oh. tty->count is 1, which means that the tty |
| 1551 | * structure will be freed. Info->count should always |
| 1552 | * be one in these conditions. If it's greater than |
| 1553 | * one, we've got real problems, since it means the |
| 1554 | * serial port won't be shutdown. |
| 1555 | */ |
| 1556 | printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, " |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1557 | "info->count is %d\n", port->count); |
| 1558 | port->count = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1559 | } |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1560 | if (--port->count < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n", |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1562 | info->line, port->count); |
| 1563 | port->count = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1564 | } |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1565 | if (port->count) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1566 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1567 | printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n"); |
| 1568 | #endif |
| 1569 | return; |
| 1570 | } |
Peter Hurley | a657eec | 2016-01-10 14:51:39 -0800 | [diff] [blame] | 1571 | info->closing = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1572 | |
| 1573 | tty->closing = 1; |
| 1574 | /* |
| 1575 | * At this point we stop accepting input. To do this, we |
| 1576 | * disable the receive line status interrupts, and tell the |
| 1577 | * interrupt driver to stop checking the data ready bit in the |
| 1578 | * line status register. |
| 1579 | */ |
Peter Hurley | d41861c | 2016-04-09 17:53:25 -0700 | [diff] [blame] | 1580 | if (tty_port_initialized(port)) { |
Peter Hurley | 79c1faa | 2015-10-10 16:00:51 -0400 | [diff] [blame] | 1581 | tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1582 | /* |
| 1583 | * Before we drop DTR, make sure the UART transmitter |
| 1584 | * has completely drained; this is especially |
| 1585 | * important if there is a transmit FIFO! |
| 1586 | */ |
| 1587 | timeout = jiffies + HZ; |
| 1588 | while (!(info->lsr & UART_LSR_TEMT)) { |
Nishanth Aravamudan | 24763c4 | 2005-11-07 01:01:16 -0800 | [diff] [blame] | 1589 | schedule_timeout_interruptible(20); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1590 | if (time_after(jiffies, timeout)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1591 | break; |
| 1592 | } |
| 1593 | } |
| 1594 | dev->modempoll--; |
| 1595 | isdn_tty_shutdown(info); |
Alan Cox | 978e595 | 2008-04-30 00:53:59 -0700 | [diff] [blame] | 1596 | isdn_tty_flush_buffer(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | tty_ldisc_flush(tty); |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1598 | port->tty = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1599 | info->ncarrier = 0; |
Jiri Slaby | 4330d66 | 2012-04-02 13:54:00 +0200 | [diff] [blame] | 1600 | |
| 1601 | tty_port_close_end(port, tty); |
Peter Hurley | a657eec | 2016-01-10 14:51:39 -0800 | [diff] [blame] | 1602 | info->closing = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1603 | #ifdef ISDN_DEBUG_MODEM_OPEN |
| 1604 | printk(KERN_DEBUG "isdn_tty_close normal exit\n"); |
| 1605 | #endif |
| 1606 | } |
| 1607 | |
| 1608 | /* |
| 1609 | * isdn_tty_hangup() --- called by tty_hangup() when a hangup is signaled. |
| 1610 | */ |
| 1611 | static void |
| 1612 | isdn_tty_hangup(struct tty_struct *tty) |
| 1613 | { |
| 1614 | modem_info *info = (modem_info *) tty->driver_data; |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1615 | struct tty_port *port = &info->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1616 | |
| 1617 | if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup")) |
| 1618 | return; |
| 1619 | isdn_tty_shutdown(info); |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1620 | port->count = 0; |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 1621 | tty_port_set_active(port, 0); |
Jiri Slaby | 265d6f0 | 2012-04-02 13:53:59 +0200 | [diff] [blame] | 1622 | port->tty = NULL; |
| 1623 | wake_up_interruptible(&port->open_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1624 | } |
| 1625 | |
| 1626 | /* This routine initializes all emulator-data. |
| 1627 | */ |
| 1628 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1629 | isdn_tty_reset_profile(atemu *m) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1630 | { |
| 1631 | m->profile[0] = 0; |
| 1632 | m->profile[1] = 0; |
| 1633 | m->profile[2] = 43; |
| 1634 | m->profile[3] = 13; |
| 1635 | m->profile[4] = 10; |
| 1636 | m->profile[5] = 8; |
| 1637 | m->profile[6] = 3; |
| 1638 | m->profile[7] = 60; |
| 1639 | m->profile[8] = 2; |
| 1640 | m->profile[9] = 6; |
| 1641 | m->profile[10] = 7; |
| 1642 | m->profile[11] = 70; |
| 1643 | m->profile[12] = 0x45; |
| 1644 | m->profile[13] = 4; |
| 1645 | m->profile[14] = ISDN_PROTO_L2_X75I; |
| 1646 | m->profile[15] = ISDN_PROTO_L3_TRANS; |
| 1647 | m->profile[16] = ISDN_SERIAL_XMIT_SIZE / 16; |
| 1648 | m->profile[17] = ISDN_MODEM_WINSIZE; |
| 1649 | m->profile[18] = 4; |
| 1650 | m->profile[19] = 0; |
| 1651 | m->profile[20] = 0; |
| 1652 | m->profile[23] = 0; |
| 1653 | m->pmsn[0] = '\0'; |
| 1654 | m->plmsn[0] = '\0'; |
| 1655 | } |
| 1656 | |
| 1657 | #ifdef CONFIG_ISDN_AUDIO |
| 1658 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1659 | isdn_tty_modem_reset_vpar(atemu *m) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1660 | { |
| 1661 | m->vpar[0] = 2; /* Voice-device (2 = phone line) */ |
| 1662 | m->vpar[1] = 0; /* Silence detection level (0 = none ) */ |
| 1663 | m->vpar[2] = 70; /* Silence interval (7 sec. ) */ |
| 1664 | m->vpar[3] = 2; /* Compression type (1 = ADPCM-2 ) */ |
| 1665 | m->vpar[4] = 0; /* DTMF detection level (0 = softcode ) */ |
| 1666 | m->vpar[5] = 8; /* DTMF interval (8 * 5 ms. ) */ |
| 1667 | } |
| 1668 | #endif |
| 1669 | |
| 1670 | #ifdef CONFIG_ISDN_TTY_FAX |
| 1671 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1672 | isdn_tty_modem_reset_faxpar(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1673 | { |
| 1674 | T30_s *f = info->fax; |
| 1675 | |
| 1676 | f->code = 0; |
| 1677 | f->phase = ISDN_FAX_PHASE_IDLE; |
| 1678 | f->direction = 0; |
| 1679 | f->resolution = 1; /* fine */ |
| 1680 | f->rate = 5; /* 14400 bit/s */ |
| 1681 | f->width = 0; |
| 1682 | f->length = 0; |
| 1683 | f->compression = 0; |
| 1684 | f->ecm = 0; |
| 1685 | f->binary = 0; |
| 1686 | f->scantime = 0; |
| 1687 | memset(&f->id[0], 32, FAXIDLEN - 1); |
| 1688 | f->id[FAXIDLEN - 1] = 0; |
| 1689 | f->badlin = 0; |
| 1690 | f->badmul = 0; |
| 1691 | f->bor = 0; |
| 1692 | f->nbc = 0; |
| 1693 | f->cq = 0; |
| 1694 | f->cr = 0; |
| 1695 | f->ctcrty = 0; |
| 1696 | f->minsp = 0; |
| 1697 | f->phcto = 30; |
| 1698 | f->rel = 0; |
| 1699 | memset(&f->pollid[0], 32, FAXIDLEN - 1); |
| 1700 | f->pollid[FAXIDLEN - 1] = 0; |
| 1701 | } |
| 1702 | #endif |
| 1703 | |
| 1704 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1705 | isdn_tty_modem_reset_regs(modem_info *info, int force) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1706 | { |
| 1707 | atemu *m = &info->emu; |
| 1708 | if ((m->mdmreg[REG_DTRR] & BIT_DTRR) || force) { |
| 1709 | memcpy(m->mdmreg, m->profile, ISDN_MODEM_NUMREG); |
| 1710 | memcpy(m->msn, m->pmsn, ISDN_MSNLEN); |
| 1711 | memcpy(m->lmsn, m->plmsn, ISDN_LMSNLEN); |
| 1712 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; |
| 1713 | } |
| 1714 | #ifdef CONFIG_ISDN_AUDIO |
| 1715 | isdn_tty_modem_reset_vpar(m); |
| 1716 | #endif |
| 1717 | #ifdef CONFIG_ISDN_TTY_FAX |
| 1718 | isdn_tty_modem_reset_faxpar(info); |
| 1719 | #endif |
| 1720 | m->mdmcmdl = 0; |
| 1721 | } |
| 1722 | |
| 1723 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1724 | modem_write_profile(atemu *m) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1725 | { |
| 1726 | memcpy(m->profile, m->mdmreg, ISDN_MODEM_NUMREG); |
| 1727 | memcpy(m->pmsn, m->msn, ISDN_MSNLEN); |
| 1728 | memcpy(m->plmsn, m->lmsn, ISDN_LMSNLEN); |
| 1729 | if (dev->profd) |
| 1730 | send_sig(SIGIO, dev->profd, 1); |
| 1731 | } |
| 1732 | |
Jeff Dike | b68e31d | 2006-10-02 02:17:18 -0700 | [diff] [blame] | 1733 | static const struct tty_operations modem_ops = { |
Jiri Slaby | f7e0405 | 2012-08-07 21:47:59 +0200 | [diff] [blame] | 1734 | .install = isdn_tty_install, |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1735 | .open = isdn_tty_open, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | .close = isdn_tty_close, |
| 1737 | .write = isdn_tty_write, |
| 1738 | .flush_chars = isdn_tty_flush_chars, |
| 1739 | .write_room = isdn_tty_write_room, |
| 1740 | .chars_in_buffer = isdn_tty_chars_in_buffer, |
| 1741 | .flush_buffer = isdn_tty_flush_buffer, |
| 1742 | .ioctl = isdn_tty_ioctl, |
| 1743 | .throttle = isdn_tty_throttle, |
| 1744 | .unthrottle = isdn_tty_unthrottle, |
| 1745 | .set_termios = isdn_tty_set_termios, |
| 1746 | .hangup = isdn_tty_hangup, |
| 1747 | .tiocmget = isdn_tty_tiocmget, |
| 1748 | .tiocmset = isdn_tty_tiocmset, |
| 1749 | }; |
| 1750 | |
Jiri Slaby | 042b9e7 | 2012-04-02 13:54:01 +0200 | [diff] [blame] | 1751 | static int isdn_tty_carrier_raised(struct tty_port *port) |
| 1752 | { |
| 1753 | modem_info *info = container_of(port, modem_info, port); |
| 1754 | return info->msr & UART_MSR_DCD; |
| 1755 | } |
| 1756 | |
| 1757 | static const struct tty_port_operations isdn_tty_port_ops = { |
| 1758 | .carrier_raised = isdn_tty_carrier_raised, |
| 1759 | }; |
| 1760 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1761 | int |
| 1762 | isdn_tty_modem_init(void) |
| 1763 | { |
| 1764 | isdn_modem_t *m; |
| 1765 | int i, retval; |
| 1766 | modem_info *info; |
| 1767 | |
| 1768 | m = &dev->mdm; |
| 1769 | m->tty_modem = alloc_tty_driver(ISDN_MAX_CHANNELS); |
| 1770 | if (!m->tty_modem) |
| 1771 | return -ENOMEM; |
| 1772 | m->tty_modem->name = "ttyI"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1773 | m->tty_modem->major = ISDN_TTY_MAJOR; |
| 1774 | m->tty_modem->minor_start = 0; |
| 1775 | m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL; |
| 1776 | m->tty_modem->subtype = SERIAL_TYPE_NORMAL; |
| 1777 | m->tty_modem->init_termios = tty_std_termios; |
| 1778 | m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; |
Jiri Slaby | c4d6ebe | 2012-08-07 21:47:48 +0200 | [diff] [blame] | 1779 | m->tty_modem->flags = TTY_DRIVER_REAL_RAW; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | m->tty_modem->driver_name = "isdn_tty"; |
| 1781 | tty_set_operations(m->tty_modem, &modem_ops); |
| 1782 | retval = tty_register_driver(m->tty_modem); |
| 1783 | if (retval) { |
| 1784 | printk(KERN_WARNING "isdn_tty: Couldn't register modem-device\n"); |
| 1785 | goto err; |
| 1786 | } |
| 1787 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| 1788 | info = &m->info[i]; |
| 1789 | #ifdef CONFIG_ISDN_TTY_FAX |
| 1790 | if (!(info->fax = kmalloc(sizeof(T30_s), GFP_KERNEL))) { |
| 1791 | printk(KERN_ERR "Could not allocate fax t30-buffer\n"); |
| 1792 | retval = -ENOMEM; |
| 1793 | goto err_unregister; |
| 1794 | } |
| 1795 | #endif |
Jiri Slaby | 48decc1 | 2012-04-02 13:53:54 +0200 | [diff] [blame] | 1796 | tty_port_init(&info->port); |
Jiri Slaby | 042b9e7 | 2012-04-02 13:54:01 +0200 | [diff] [blame] | 1797 | info->port.ops = &isdn_tty_port_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1798 | spin_lock_init(&info->readlock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | sprintf(info->last_cause, "0000"); |
| 1800 | sprintf(info->last_num, "none"); |
| 1801 | info->last_dir = 0; |
| 1802 | info->last_lhup = 1; |
| 1803 | info->last_l2 = -1; |
| 1804 | info->last_si = 0; |
| 1805 | isdn_tty_reset_profile(&info->emu); |
| 1806 | isdn_tty_modem_reset_regs(info, 1); |
| 1807 | info->magic = ISDN_ASYNC_MAGIC; |
| 1808 | info->line = i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1809 | info->x_char = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | info->isdn_driver = -1; |
| 1811 | info->isdn_channel = -1; |
| 1812 | info->drv_index = -1; |
| 1813 | info->xmit_size = ISDN_SERIAL_XMIT_SIZE; |
| 1814 | init_timer(&info->nc_timer); |
| 1815 | info->nc_timer.function = isdn_tty_modem_do_ncarrier; |
| 1816 | info->nc_timer.data = (unsigned long) info; |
| 1817 | skb_queue_head_init(&info->xmit_queue); |
| 1818 | #ifdef CONFIG_ISDN_AUDIO |
| 1819 | skb_queue_head_init(&info->dtmf_queue); |
| 1820 | #endif |
Jiri Slaby | 82e46b3 | 2012-04-02 13:53:58 +0200 | [diff] [blame] | 1821 | info->port.xmit_buf = kmalloc(ISDN_SERIAL_XMIT_MAX + 5, |
| 1822 | GFP_KERNEL); |
| 1823 | if (!info->port.xmit_buf) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1824 | printk(KERN_ERR "Could not allocate modem xmit-buffer\n"); |
| 1825 | retval = -ENOMEM; |
| 1826 | goto err_unregister; |
| 1827 | } |
| 1828 | /* Make room for T.70 header */ |
Jiri Slaby | 82e46b3 | 2012-04-02 13:53:58 +0200 | [diff] [blame] | 1829 | info->port.xmit_buf += 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1830 | } |
| 1831 | return 0; |
| 1832 | err_unregister: |
| 1833 | for (i--; i >= 0; i--) { |
| 1834 | info = &m->info[i]; |
| 1835 | #ifdef CONFIG_ISDN_TTY_FAX |
| 1836 | kfree(info->fax); |
| 1837 | #endif |
Jiri Slaby | 82e46b3 | 2012-04-02 13:53:58 +0200 | [diff] [blame] | 1838 | kfree(info->port.xmit_buf - 4); |
Jiri Slaby | 191c5f1 | 2012-11-15 09:49:56 +0100 | [diff] [blame] | 1839 | info->port.xmit_buf = NULL; |
| 1840 | tty_port_destroy(&info->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | } |
| 1842 | tty_unregister_driver(m->tty_modem); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1843 | err: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1844 | put_tty_driver(m->tty_modem); |
| 1845 | m->tty_modem = NULL; |
| 1846 | return retval; |
| 1847 | } |
| 1848 | |
| 1849 | void |
| 1850 | isdn_tty_exit(void) |
| 1851 | { |
| 1852 | modem_info *info; |
| 1853 | int i; |
| 1854 | |
| 1855 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| 1856 | info = &dev->mdm.info[i]; |
| 1857 | isdn_tty_cleanup_xmit(info); |
| 1858 | #ifdef CONFIG_ISDN_TTY_FAX |
| 1859 | kfree(info->fax); |
| 1860 | #endif |
Jiri Slaby | 82e46b3 | 2012-04-02 13:53:58 +0200 | [diff] [blame] | 1861 | kfree(info->port.xmit_buf - 4); |
Jiri Slaby | 191c5f1 | 2012-11-15 09:49:56 +0100 | [diff] [blame] | 1862 | info->port.xmit_buf = NULL; |
| 1863 | tty_port_destroy(&info->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1864 | } |
| 1865 | tty_unregister_driver(dev->mdm.tty_modem); |
| 1866 | put_tty_driver(dev->mdm.tty_modem); |
| 1867 | dev->mdm.tty_modem = NULL; |
| 1868 | } |
| 1869 | |
| 1870 | |
| 1871 | /* |
| 1872 | * isdn_tty_match_icall(char *MSN, atemu *tty_emulator, int dev_idx) |
| 1873 | * match the MSN against the MSNs (glob patterns) defined for tty_emulator, |
| 1874 | * and return 0 for match, 1 for no match, 2 if MSN could match if longer. |
| 1875 | */ |
| 1876 | |
| 1877 | static int |
| 1878 | isdn_tty_match_icall(char *cid, atemu *emu, int di) |
| 1879 | { |
| 1880 | #ifdef ISDN_DEBUG_MODEM_ICALL |
| 1881 | printk(KERN_DEBUG "m_fi: msn=%s lmsn=%s mmsn=%s mreg[SI1]=%d mreg[SI2]=%d\n", |
| 1882 | emu->msn, emu->lmsn, isdn_map_eaz2msn(emu->msn, di), |
| 1883 | emu->mdmreg[REG_SI1], emu->mdmreg[REG_SI2]); |
| 1884 | #endif |
| 1885 | if (strlen(emu->lmsn)) { |
| 1886 | char *p = emu->lmsn; |
| 1887 | char *q; |
| 1888 | int tmp; |
| 1889 | int ret = 0; |
| 1890 | |
| 1891 | while (1) { |
| 1892 | if ((q = strchr(p, ';'))) |
| 1893 | *q = '\0'; |
| 1894 | if ((tmp = isdn_msncmp(cid, isdn_map_eaz2msn(p, di))) > ret) |
| 1895 | ret = tmp; |
| 1896 | #ifdef ISDN_DEBUG_MODEM_ICALL |
| 1897 | printk(KERN_DEBUG "m_fi: lmsnX=%s mmsn=%s -> tmp=%d\n", |
| 1898 | p, isdn_map_eaz2msn(emu->msn, di), tmp); |
| 1899 | #endif |
| 1900 | if (q) { |
| 1901 | *q = ';'; |
| 1902 | p = q; |
| 1903 | p++; |
| 1904 | } |
| 1905 | if (!tmp) |
| 1906 | return 0; |
| 1907 | if (!q) |
| 1908 | break; |
| 1909 | } |
| 1910 | return ret; |
| 1911 | } else { |
| 1912 | int tmp; |
| 1913 | tmp = isdn_msncmp(cid, isdn_map_eaz2msn(emu->msn, di)); |
| 1914 | #ifdef ISDN_DEBUG_MODEM_ICALL |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1915 | printk(KERN_DEBUG "m_fi: mmsn=%s -> tmp=%d\n", |
| 1916 | isdn_map_eaz2msn(emu->msn, di), tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1917 | #endif |
| 1918 | return tmp; |
| 1919 | } |
| 1920 | } |
| 1921 | |
| 1922 | /* |
| 1923 | * An incoming call-request has arrived. |
| 1924 | * Search the tty-devices for an appropriate device and bind |
| 1925 | * it to the ISDN-Channel. |
| 1926 | * Return: |
| 1927 | * |
| 1928 | * 0 = No matching device found. |
| 1929 | * 1 = A matching device found. |
| 1930 | * 3 = No match found, but eventually would match, if |
| 1931 | * CID is longer. |
| 1932 | */ |
| 1933 | int |
| 1934 | isdn_tty_find_icall(int di, int ch, setup_parm *setup) |
| 1935 | { |
| 1936 | char *eaz; |
| 1937 | int i; |
| 1938 | int wret; |
| 1939 | int idx; |
| 1940 | int si1; |
| 1941 | int si2; |
| 1942 | char *nr; |
| 1943 | ulong flags; |
| 1944 | |
| 1945 | if (!setup->phone[0]) { |
| 1946 | nr = "0"; |
| 1947 | printk(KERN_INFO "isdn_tty: Incoming call without OAD, assuming '0'\n"); |
| 1948 | } else |
| 1949 | nr = setup->phone; |
| 1950 | si1 = (int) setup->si1; |
| 1951 | si2 = (int) setup->si2; |
| 1952 | if (!setup->eazmsn[0]) { |
| 1953 | printk(KERN_WARNING "isdn_tty: Incoming call without CPN, assuming '0'\n"); |
| 1954 | eaz = "0"; |
| 1955 | } else |
| 1956 | eaz = setup->eazmsn; |
| 1957 | #ifdef ISDN_DEBUG_MODEM_ICALL |
| 1958 | printk(KERN_DEBUG "m_fi: eaz=%s si1=%d si2=%d\n", eaz, si1, si2); |
| 1959 | #endif |
| 1960 | wret = 0; |
| 1961 | spin_lock_irqsave(&dev->lock, flags); |
| 1962 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| 1963 | modem_info *info = &dev->mdm.info[i]; |
| 1964 | |
Jiri Slaby | 1b05f03 | 2012-04-02 13:53:56 +0200 | [diff] [blame] | 1965 | if (info->port.count == 0) |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1966 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1967 | if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */ |
| 1968 | (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */ |
| 1969 | idx = isdn_dc2minor(di, ch); |
| 1970 | #ifdef ISDN_DEBUG_MODEM_ICALL |
| 1971 | printk(KERN_DEBUG "m_fi: match1 wret=%d\n", wret); |
| 1972 | printk(KERN_DEBUG "m_fi: idx=%d flags=%08lx drv=%d ch=%d usg=%d\n", idx, |
Jiri Slaby | 48decc1 | 2012-04-02 13:53:54 +0200 | [diff] [blame] | 1973 | info->port.flags, info->isdn_driver, |
| 1974 | info->isdn_channel, dev->usage[idx]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1975 | #endif |
| 1976 | if ( |
| 1977 | #ifndef FIX_FILE_TRANSFER |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 1978 | tty_port_active(&info->port) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1979 | #endif |
| 1980 | (info->isdn_driver == -1) && |
| 1981 | (info->isdn_channel == -1) && |
| 1982 | (USG_NONE(dev->usage[idx]))) { |
| 1983 | int matchret; |
| 1984 | |
| 1985 | if ((matchret = isdn_tty_match_icall(eaz, &info->emu, di)) > wret) |
| 1986 | wret = matchret; |
| 1987 | if (!matchret) { /* EAZ is matching */ |
| 1988 | info->isdn_driver = di; |
| 1989 | info->isdn_channel = ch; |
| 1990 | info->drv_index = idx; |
| 1991 | dev->m_idx[idx] = info->line; |
| 1992 | dev->usage[idx] &= ISDN_USAGE_EXCLUSIVE; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 1993 | dev->usage[idx] |= isdn_calc_usage(si1, info->emu.mdmreg[REG_L2PROT]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1994 | strcpy(dev->num[idx], nr); |
| 1995 | strcpy(info->emu.cpn, eaz); |
| 1996 | info->emu.mdmreg[REG_SI1I] = si2bit[si1]; |
| 1997 | info->emu.mdmreg[REG_PLAN] = setup->plan; |
| 1998 | info->emu.mdmreg[REG_SCREEN] = setup->screen; |
| 1999 | isdn_info_update(); |
| 2000 | spin_unlock_irqrestore(&dev->lock, flags); |
| 2001 | printk(KERN_INFO "isdn_tty: call from %s, -> RING on ttyI%d\n", nr, |
| 2002 | info->line); |
| 2003 | info->msr |= UART_MSR_RI; |
| 2004 | isdn_tty_modem_result(RESULT_RING, info); |
| 2005 | isdn_timer_ctrl(ISDN_TIMER_MODEMRING, 1); |
| 2006 | return 1; |
| 2007 | } |
| 2008 | } |
| 2009 | } |
| 2010 | } |
| 2011 | spin_unlock_irqrestore(&dev->lock, flags); |
| 2012 | printk(KERN_INFO "isdn_tty: call from %s -> %s %s\n", nr, eaz, |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2013 | ((dev->drv[di]->flags & DRV_FLAG_REJBUS) && (wret != 2)) ? "rejected" : "ignored"); |
| 2014 | return (wret == 2) ? 3 : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2015 | } |
| 2016 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2017 | int |
| 2018 | isdn_tty_stat_callback(int i, isdn_ctrl *c) |
| 2019 | { |
| 2020 | int mi; |
| 2021 | modem_info *info; |
| 2022 | char *e; |
| 2023 | |
| 2024 | if (i < 0) |
| 2025 | return 0; |
| 2026 | if ((mi = dev->m_idx[i]) >= 0) { |
| 2027 | info = &dev->mdm.info[mi]; |
| 2028 | switch (c->command) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2029 | case ISDN_STAT_CINF: |
| 2030 | printk(KERN_DEBUG "CHARGEINFO on ttyI%d: %ld %s\n", info->line, c->arg, c->parm.num); |
| 2031 | info->emu.charge = (unsigned) simple_strtoul(c->parm.num, &e, 10); |
| 2032 | if (e == (char *)c->parm.num) |
| 2033 | info->emu.charge = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2034 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2035 | break; |
| 2036 | case ISDN_STAT_BSENT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2037 | #ifdef ISDN_TTY_STAT_DEBUG |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2038 | printk(KERN_DEBUG "tty_STAT_BSENT ttyI%d\n", info->line); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2039 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2040 | if ((info->isdn_driver == c->driver) && |
| 2041 | (info->isdn_channel == c->arg)) { |
| 2042 | info->msr |= UART_MSR_CTS; |
| 2043 | if (info->send_outstanding) |
| 2044 | if (!(--info->send_outstanding)) |
| 2045 | info->lsr |= UART_LSR_TEMT; |
| 2046 | isdn_tty_tint(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2047 | return 1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2048 | } |
| 2049 | break; |
| 2050 | case ISDN_STAT_CAUSE: |
| 2051 | #ifdef ISDN_TTY_STAT_DEBUG |
| 2052 | printk(KERN_DEBUG "tty_STAT_CAUSE ttyI%d\n", info->line); |
| 2053 | #endif |
| 2054 | /* Signal cause to tty-device */ |
| 2055 | strncpy(info->last_cause, c->parm.num, 5); |
| 2056 | return 1; |
| 2057 | case ISDN_STAT_DISPLAY: |
| 2058 | #ifdef ISDN_TTY_STAT_DEBUG |
| 2059 | printk(KERN_DEBUG "tty_STAT_DISPLAY ttyI%d\n", info->line); |
| 2060 | #endif |
| 2061 | /* Signal display to tty-device */ |
| 2062 | if ((info->emu.mdmreg[REG_DISPLAY] & BIT_DISPLAY) && |
| 2063 | !(info->emu.mdmreg[REG_RESPNUM] & BIT_RESPNUM)) { |
| 2064 | isdn_tty_at_cout("\r\n", info); |
| 2065 | isdn_tty_at_cout("DISPLAY: ", info); |
| 2066 | isdn_tty_at_cout(c->parm.display, info); |
| 2067 | isdn_tty_at_cout("\r\n", info); |
| 2068 | } |
| 2069 | return 1; |
| 2070 | case ISDN_STAT_DCONN: |
| 2071 | #ifdef ISDN_TTY_STAT_DEBUG |
| 2072 | printk(KERN_DEBUG "tty_STAT_DCONN ttyI%d\n", info->line); |
| 2073 | #endif |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 2074 | if (tty_port_active(&info->port)) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2075 | if (info->dialing == 1) { |
| 2076 | info->dialing = 2; |
| 2077 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2078 | } |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2079 | } |
| 2080 | break; |
| 2081 | case ISDN_STAT_DHUP: |
| 2082 | #ifdef ISDN_TTY_STAT_DEBUG |
| 2083 | printk(KERN_DEBUG "tty_STAT_DHUP ttyI%d\n", info->line); |
| 2084 | #endif |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 2085 | if (tty_port_active(&info->port)) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2086 | if (info->dialing == 1) |
| 2087 | isdn_tty_modem_result(RESULT_BUSY, info); |
| 2088 | if (info->dialing > 1) |
| 2089 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| 2090 | info->dialing = 0; |
| 2091 | #ifdef ISDN_DEBUG_MODEM_HUP |
| 2092 | printk(KERN_DEBUG "Mhup in ISDN_STAT_DHUP\n"); |
| 2093 | #endif |
| 2094 | isdn_tty_modem_hup(info, 0); |
| 2095 | return 1; |
| 2096 | } |
| 2097 | break; |
| 2098 | case ISDN_STAT_BCONN: |
| 2099 | #ifdef ISDN_TTY_STAT_DEBUG |
| 2100 | printk(KERN_DEBUG "tty_STAT_BCONN ttyI%d\n", info->line); |
| 2101 | #endif |
| 2102 | /* Wake up any processes waiting |
| 2103 | * for incoming call of this device when |
| 2104 | * DCD follow the state of incoming carrier |
| 2105 | */ |
Jiri Slaby | 1b05f03 | 2012-04-02 13:53:56 +0200 | [diff] [blame] | 2106 | if (info->port.blocked_open && |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2107 | (info->emu.mdmreg[REG_DCD] & BIT_DCD)) { |
Jiri Slaby | c6e92b6 | 2012-04-02 13:53:55 +0200 | [diff] [blame] | 2108 | wake_up_interruptible(&info->port.open_wait); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2109 | } |
| 2110 | |
| 2111 | /* Schedule CONNECT-Message to any tty |
| 2112 | * waiting for it and |
| 2113 | * set DCD-bit of its modem-status. |
| 2114 | */ |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 2115 | if (tty_port_active(&info->port) || |
Jiri Slaby | 1b05f03 | 2012-04-02 13:53:56 +0200 | [diff] [blame] | 2116 | (info->port.blocked_open && |
| 2117 | (info->emu.mdmreg[REG_DCD] & BIT_DCD))) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2118 | info->msr |= UART_MSR_DCD; |
| 2119 | info->emu.charge = 0; |
| 2120 | if (info->dialing & 0xf) |
| 2121 | info->last_dir = 1; |
| 2122 | else |
| 2123 | info->last_dir = 0; |
| 2124 | info->dialing = 0; |
| 2125 | info->rcvsched = 1; |
| 2126 | if (USG_MODEM(dev->usage[i])) { |
| 2127 | if (info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) { |
| 2128 | strcpy(info->emu.connmsg, c->parm.num); |
| 2129 | isdn_tty_modem_result(RESULT_CONNECT, info); |
| 2130 | } else |
| 2131 | isdn_tty_modem_result(RESULT_CONNECT64000, info); |
| 2132 | } |
| 2133 | if (USG_VOICE(dev->usage[i])) |
| 2134 | isdn_tty_modem_result(RESULT_VCON, info); |
| 2135 | return 1; |
| 2136 | } |
| 2137 | break; |
| 2138 | case ISDN_STAT_BHUP: |
| 2139 | #ifdef ISDN_TTY_STAT_DEBUG |
| 2140 | printk(KERN_DEBUG "tty_STAT_BHUP ttyI%d\n", info->line); |
| 2141 | #endif |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 2142 | if (tty_port_active(&info->port)) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2143 | #ifdef ISDN_DEBUG_MODEM_HUP |
| 2144 | printk(KERN_DEBUG "Mhup in ISDN_STAT_BHUP\n"); |
| 2145 | #endif |
| 2146 | isdn_tty_modem_hup(info, 0); |
| 2147 | return 1; |
| 2148 | } |
| 2149 | break; |
| 2150 | case ISDN_STAT_NODCH: |
| 2151 | #ifdef ISDN_TTY_STAT_DEBUG |
| 2152 | printk(KERN_DEBUG "tty_STAT_NODCH ttyI%d\n", info->line); |
| 2153 | #endif |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 2154 | if (tty_port_active(&info->port)) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2155 | if (info->dialing) { |
| 2156 | info->dialing = 0; |
| 2157 | info->last_l2 = -1; |
| 2158 | info->last_si = 0; |
| 2159 | sprintf(info->last_cause, "0000"); |
| 2160 | isdn_tty_modem_result(RESULT_NO_DIALTONE, info); |
| 2161 | } |
| 2162 | isdn_tty_modem_hup(info, 0); |
| 2163 | return 1; |
| 2164 | } |
| 2165 | break; |
| 2166 | case ISDN_STAT_UNLOAD: |
| 2167 | #ifdef ISDN_TTY_STAT_DEBUG |
| 2168 | printk(KERN_DEBUG "tty_STAT_UNLOAD ttyI%d\n", info->line); |
| 2169 | #endif |
| 2170 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| 2171 | info = &dev->mdm.info[i]; |
| 2172 | if (info->isdn_driver == c->driver) { |
| 2173 | if (info->online) |
| 2174 | isdn_tty_modem_hup(info, 1); |
| 2175 | } |
| 2176 | } |
| 2177 | return 1; |
| 2178 | #ifdef CONFIG_ISDN_TTY_FAX |
| 2179 | case ISDN_STAT_FAXIND: |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 2180 | if (tty_port_active(&info->port)) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2181 | isdn_tty_fax_command(info, c); |
| 2182 | } |
| 2183 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2184 | #endif |
| 2185 | #ifdef CONFIG_ISDN_AUDIO |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2186 | case ISDN_STAT_AUDIO: |
Peter Hurley | 807c8d81 | 2016-04-09 17:53:22 -0700 | [diff] [blame] | 2187 | if (tty_port_active(&info->port)) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2188 | switch (c->parm.num[0]) { |
| 2189 | case ISDN_AUDIO_DTMF: |
| 2190 | if (info->vonline) { |
| 2191 | isdn_audio_put_dle_code(info, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2192 | c->parm.num[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2193 | } |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2194 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2195 | } |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2196 | } |
| 2197 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2198 | #endif |
| 2199 | } |
| 2200 | } |
| 2201 | return 0; |
| 2202 | } |
| 2203 | |
| 2204 | /********************************************************************* |
| 2205 | Modem-Emulator-Routines |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2206 | *********************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2207 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2208 | #define cmdchar(c) ((c >= ' ') && (c <= 0x7f)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2209 | |
| 2210 | /* |
| 2211 | * Put a message from the AT-emulator into receive-buffer of tty, |
| 2212 | * convert CR, LF, and BS to values in modem-registers 3, 4 and 5. |
| 2213 | */ |
| 2214 | void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2215 | isdn_tty_at_cout(char *msg, modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2216 | { |
Jiri Slaby | 227434f | 2013-01-03 15:53:01 +0100 | [diff] [blame] | 2217 | struct tty_port *port = &info->port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2218 | atemu *m = &info->emu; |
| 2219 | char *p; |
| 2220 | char c; |
| 2221 | u_long flags; |
| 2222 | struct sk_buff *skb = NULL; |
| 2223 | char *sp = NULL; |
Adrian Bunk | 1f4d4a8 | 2006-03-25 03:08:06 -0800 | [diff] [blame] | 2224 | int l; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2225 | |
| 2226 | if (!msg) { |
| 2227 | printk(KERN_WARNING "isdn_tty: Null-Message in isdn_tty_at_cout\n"); |
| 2228 | return; |
| 2229 | } |
Adrian Bunk | 1f4d4a8 | 2006-03-25 03:08:06 -0800 | [diff] [blame] | 2230 | |
| 2231 | l = strlen(msg); |
| 2232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2233 | spin_lock_irqsave(&info->readlock, flags); |
Peter Hurley | a657eec | 2016-01-10 14:51:39 -0800 | [diff] [blame] | 2234 | if (info->closing) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2235 | spin_unlock_irqrestore(&info->readlock, flags); |
| 2236 | return; |
| 2237 | } |
| 2238 | |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 2239 | /* use queue instead of direct, if online and */ |
| 2240 | /* data is in queue or buffer is full */ |
Jiri Slaby | 227434f | 2013-01-03 15:53:01 +0100 | [diff] [blame] | 2241 | if (info->online && ((tty_buffer_request_room(port, l) < l) || |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2242 | !skb_queue_empty(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel]))) { |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 2243 | skb = alloc_skb(l, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2244 | if (!skb) { |
| 2245 | spin_unlock_irqrestore(&info->readlock, flags); |
| 2246 | return; |
| 2247 | } |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 2248 | sp = skb_put(skb, l); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2249 | #ifdef CONFIG_ISDN_AUDIO |
| 2250 | ISDN_AUDIO_SKB_DLECOUNT(skb) = 0; |
| 2251 | ISDN_AUDIO_SKB_LOCK(skb) = 0; |
| 2252 | #endif |
| 2253 | } |
| 2254 | |
| 2255 | for (p = msg; *p; p++) { |
| 2256 | switch (*p) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2257 | case '\r': |
| 2258 | c = m->mdmreg[REG_CR]; |
| 2259 | break; |
| 2260 | case '\n': |
| 2261 | c = m->mdmreg[REG_LF]; |
| 2262 | break; |
| 2263 | case '\b': |
| 2264 | c = m->mdmreg[REG_BS]; |
| 2265 | break; |
| 2266 | default: |
| 2267 | c = *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2268 | } |
| 2269 | if (skb) { |
| 2270 | *sp++ = c; |
| 2271 | } else { |
Jiri Slaby | 92a19f9 | 2013-01-03 15:53:03 +0100 | [diff] [blame] | 2272 | if (tty_insert_flip_char(port, c, TTY_NORMAL) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2273 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2274 | } |
| 2275 | } |
| 2276 | if (skb) { |
| 2277 | __skb_queue_tail(&dev->drv[info->isdn_driver]->rpqueue[info->isdn_channel], skb); |
| 2278 | dev->drv[info->isdn_driver]->rcvcount[info->isdn_channel] += skb->len; |
| 2279 | spin_unlock_irqrestore(&info->readlock, flags); |
| 2280 | /* Schedule dequeuing */ |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 2281 | if (dev->modempoll && info->rcvsched) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2282 | isdn_timer_ctrl(ISDN_TIMER_MODEMREAD, 1); |
| 2283 | |
| 2284 | } else { |
| 2285 | spin_unlock_irqrestore(&info->readlock, flags); |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 2286 | tty_flip_buffer_push(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2287 | } |
| 2288 | } |
| 2289 | |
| 2290 | /* |
| 2291 | * Perform ATH Hangup |
| 2292 | */ |
| 2293 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2294 | isdn_tty_on_hook(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2295 | { |
| 2296 | if (info->isdn_channel >= 0) { |
| 2297 | #ifdef ISDN_DEBUG_MODEM_HUP |
| 2298 | printk(KERN_DEBUG "Mhup in isdn_tty_on_hook\n"); |
| 2299 | #endif |
| 2300 | isdn_tty_modem_hup(info, 1); |
| 2301 | } |
| 2302 | } |
| 2303 | |
| 2304 | static void |
| 2305 | isdn_tty_off_hook(void) |
| 2306 | { |
| 2307 | printk(KERN_DEBUG "isdn_tty_off_hook\n"); |
| 2308 | } |
| 2309 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2310 | #define PLUSWAIT1 (HZ / 2) /* 0.5 sec. */ |
| 2311 | #define PLUSWAIT2 (HZ * 3 / 2) /* 1.5 sec */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2312 | |
| 2313 | /* |
| 2314 | * Check Buffer for Modem-escape-sequence, activate timer-callback to |
| 2315 | * isdn_tty_modem_escape() if sequence found. |
| 2316 | * |
| 2317 | * Parameters: |
| 2318 | * p pointer to databuffer |
| 2319 | * plus escape-character |
| 2320 | * count length of buffer |
| 2321 | * pluscount count of valid escape-characters so far |
| 2322 | * lastplus timestamp of last character |
| 2323 | */ |
| 2324 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2325 | isdn_tty_check_esc(const u_char *p, u_char plus, int count, int *pluscount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2326 | u_long *lastplus) |
| 2327 | { |
| 2328 | if (plus > 127) |
| 2329 | return; |
| 2330 | if (count > 3) { |
| 2331 | p += count - 3; |
| 2332 | count = 3; |
| 2333 | *pluscount = 0; |
| 2334 | } |
| 2335 | while (count > 0) { |
| 2336 | if (*(p++) == plus) { |
| 2337 | if ((*pluscount)++) { |
| 2338 | /* Time since last '+' > 0.5 sec. ? */ |
| 2339 | if (time_after(jiffies, *lastplus + PLUSWAIT1)) |
| 2340 | *pluscount = 1; |
| 2341 | } else { |
| 2342 | /* Time since last non-'+' < 1.5 sec. ? */ |
| 2343 | if (time_before(jiffies, *lastplus + PLUSWAIT2)) |
| 2344 | *pluscount = 0; |
| 2345 | } |
| 2346 | if ((*pluscount == 3) && (count == 1)) |
| 2347 | isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, 1); |
| 2348 | if (*pluscount > 3) |
| 2349 | *pluscount = 1; |
| 2350 | } else |
| 2351 | *pluscount = 0; |
| 2352 | *lastplus = jiffies; |
| 2353 | count--; |
| 2354 | } |
| 2355 | } |
| 2356 | |
| 2357 | /* |
| 2358 | * Return result of AT-emulator to tty-receive-buffer, depending on |
| 2359 | * modem-register 12, bit 0 and 1. |
| 2360 | * For CONNECT-messages also switch to online-mode. |
| 2361 | * For RING-message handle auto-ATA if register 0 != 0 |
| 2362 | */ |
| 2363 | |
| 2364 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2365 | isdn_tty_modem_result(int code, modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2366 | { |
| 2367 | atemu *m = &info->emu; |
| 2368 | static char *msg[] = |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2369 | {"OK", "CONNECT", "RING", "NO CARRIER", "ERROR", |
| 2370 | "CONNECT 64000", "NO DIALTONE", "BUSY", "NO ANSWER", |
| 2371 | "RINGING", "NO MSN/EAZ", "VCON", "RUNG"}; |
| 2372 | char s[ISDN_MSNLEN + 10]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2373 | |
| 2374 | switch (code) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2375 | case RESULT_RING: |
| 2376 | m->mdmreg[REG_RINGCNT]++; |
| 2377 | if (m->mdmreg[REG_RINGCNT] == m->mdmreg[REG_RINGATA]) |
| 2378 | /* Automatically accept incoming call */ |
| 2379 | isdn_tty_cmd_ATA(info); |
| 2380 | break; |
| 2381 | case RESULT_NO_CARRIER: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2382 | #ifdef ISDN_DEBUG_MODEM_HUP |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2383 | printk(KERN_DEBUG "modem_result: NO CARRIER %d %d\n", |
Peter Hurley | a657eec | 2016-01-10 14:51:39 -0800 | [diff] [blame] | 2384 | info->closing, !info->port.tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2385 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2386 | m->mdmreg[REG_RINGCNT] = 0; |
| 2387 | del_timer(&info->nc_timer); |
| 2388 | info->ncarrier = 0; |
Peter Hurley | a657eec | 2016-01-10 14:51:39 -0800 | [diff] [blame] | 2389 | if (info->closing || !info->port.tty) |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2390 | return; |
Jiri Slaby | 6776a2f | 2012-04-02 13:53:50 +0200 | [diff] [blame] | 2391 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2392 | #ifdef CONFIG_ISDN_AUDIO |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2393 | if (info->vonline & 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2394 | #ifdef ISDN_DEBUG_MODEM_VOICE |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2395 | printk(KERN_DEBUG "res3: send DLE-ETX on ttyI%d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2396 | info->line); |
| 2397 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2398 | /* voice-recording, add DLE-ETX */ |
| 2399 | isdn_tty_at_cout("\020\003", info); |
| 2400 | } |
| 2401 | if (info->vonline & 2) { |
| 2402 | #ifdef ISDN_DEBUG_MODEM_VOICE |
| 2403 | printk(KERN_DEBUG "res3: send DLE-DC4 on ttyI%d\n", |
| 2404 | info->line); |
| 2405 | #endif |
| 2406 | /* voice-playing, add DLE-DC4 */ |
| 2407 | isdn_tty_at_cout("\020\024", info); |
| 2408 | } |
| 2409 | #endif |
| 2410 | break; |
| 2411 | case RESULT_CONNECT: |
| 2412 | case RESULT_CONNECT64000: |
| 2413 | sprintf(info->last_cause, "0000"); |
| 2414 | if (!info->online) |
| 2415 | info->online = 2; |
| 2416 | break; |
| 2417 | case RESULT_VCON: |
| 2418 | #ifdef ISDN_DEBUG_MODEM_VOICE |
| 2419 | printk(KERN_DEBUG "res3: send VCON on ttyI%d\n", |
| 2420 | info->line); |
| 2421 | #endif |
| 2422 | sprintf(info->last_cause, "0000"); |
| 2423 | if (!info->online) |
| 2424 | info->online = 1; |
| 2425 | break; |
| 2426 | } /* switch (code) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2427 | |
| 2428 | if (m->mdmreg[REG_RESP] & BIT_RESP) { |
| 2429 | /* Show results */ |
| 2430 | if (m->mdmreg[REG_RESPNUM] & BIT_RESPNUM) { |
| 2431 | /* Show numeric results only */ |
| 2432 | sprintf(s, "\r\n%d\r\n", code); |
| 2433 | isdn_tty_at_cout(s, info); |
| 2434 | } else { |
| 2435 | if (code == RESULT_RING) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2436 | /* return if "show RUNG" and ringcounter>1 */ |
| 2437 | if ((m->mdmreg[REG_RUNG] & BIT_RUNG) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2438 | (m->mdmreg[REG_RINGCNT] > 1)) |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2439 | return; |
| 2440 | /* print CID, _before_ _every_ ring */ |
| 2441 | if (!(m->mdmreg[REG_CIDONCE] & BIT_CIDONCE)) { |
| 2442 | isdn_tty_at_cout("\r\nCALLER NUMBER: ", info); |
| 2443 | isdn_tty_at_cout(dev->num[info->drv_index], info); |
| 2444 | if (m->mdmreg[REG_CDN] & BIT_CDN) { |
| 2445 | isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); |
| 2446 | isdn_tty_at_cout(info->emu.cpn, info); |
| 2447 | } |
| 2448 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2449 | } |
| 2450 | isdn_tty_at_cout("\r\n", info); |
| 2451 | isdn_tty_at_cout(msg[code], info); |
| 2452 | switch (code) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2453 | case RESULT_CONNECT: |
| 2454 | switch (m->mdmreg[REG_L2PROT]) { |
| 2455 | case ISDN_PROTO_L2_MODEM: |
| 2456 | isdn_tty_at_cout(" ", info); |
| 2457 | isdn_tty_at_cout(m->connmsg, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2458 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2459 | } |
| 2460 | break; |
| 2461 | case RESULT_RING: |
| 2462 | /* Append CPN, if enabled */ |
| 2463 | if ((m->mdmreg[REG_CPN] & BIT_CPN)) { |
| 2464 | sprintf(s, "/%s", m->cpn); |
| 2465 | isdn_tty_at_cout(s, info); |
| 2466 | } |
| 2467 | /* Print CID only once, _after_ 1st RING */ |
| 2468 | if ((m->mdmreg[REG_CIDONCE] & BIT_CIDONCE) && |
| 2469 | (m->mdmreg[REG_RINGCNT] == 1)) { |
| 2470 | isdn_tty_at_cout("\r\n", info); |
| 2471 | isdn_tty_at_cout("CALLER NUMBER: ", info); |
| 2472 | isdn_tty_at_cout(dev->num[info->drv_index], info); |
| 2473 | if (m->mdmreg[REG_CDN] & BIT_CDN) { |
| 2474 | isdn_tty_at_cout("\r\nCALLED NUMBER: ", info); |
| 2475 | isdn_tty_at_cout(info->emu.cpn, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2476 | } |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2477 | } |
| 2478 | break; |
| 2479 | case RESULT_NO_CARRIER: |
| 2480 | case RESULT_NO_DIALTONE: |
| 2481 | case RESULT_BUSY: |
| 2482 | case RESULT_NO_ANSWER: |
| 2483 | m->mdmreg[REG_RINGCNT] = 0; |
| 2484 | /* Append Cause-Message if enabled */ |
| 2485 | if (m->mdmreg[REG_RESPXT] & BIT_RESPXT) { |
| 2486 | sprintf(s, "/%s", info->last_cause); |
| 2487 | isdn_tty_at_cout(s, info); |
| 2488 | } |
| 2489 | break; |
| 2490 | case RESULT_CONNECT64000: |
| 2491 | /* Append Protocol to CONNECT message */ |
| 2492 | switch (m->mdmreg[REG_L2PROT]) { |
| 2493 | case ISDN_PROTO_L2_X75I: |
| 2494 | case ISDN_PROTO_L2_X75UI: |
| 2495 | case ISDN_PROTO_L2_X75BUI: |
| 2496 | isdn_tty_at_cout("/X.75", info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2497 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2498 | case ISDN_PROTO_L2_HDLC: |
| 2499 | isdn_tty_at_cout("/HDLC", info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2500 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2501 | case ISDN_PROTO_L2_V11096: |
| 2502 | isdn_tty_at_cout("/V110/9600", info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2503 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2504 | case ISDN_PROTO_L2_V11019: |
| 2505 | isdn_tty_at_cout("/V110/19200", info); |
| 2506 | break; |
| 2507 | case ISDN_PROTO_L2_V11038: |
| 2508 | isdn_tty_at_cout("/V110/38400", info); |
| 2509 | break; |
| 2510 | } |
| 2511 | if (m->mdmreg[REG_T70] & BIT_T70) { |
| 2512 | isdn_tty_at_cout("/T.70", info); |
| 2513 | if (m->mdmreg[REG_T70] & BIT_T70_EXT) |
| 2514 | isdn_tty_at_cout("+", info); |
| 2515 | } |
| 2516 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2517 | } |
| 2518 | isdn_tty_at_cout("\r\n", info); |
| 2519 | } |
| 2520 | } |
| 2521 | if (code == RESULT_NO_CARRIER) { |
Peter Hurley | a657eec | 2016-01-10 14:51:39 -0800 | [diff] [blame] | 2522 | if (info->closing || (!info->port.tty)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2523 | return; |
Jiri Slaby | 6776a2f | 2012-04-02 13:53:50 +0200 | [diff] [blame] | 2524 | |
Peter Hurley | 2d68655 | 2016-04-09 17:53:23 -0700 | [diff] [blame] | 2525 | if (tty_port_check_carrier(&info->port)) |
Jiri Slaby | ba43294 | 2012-04-02 13:53:57 +0200 | [diff] [blame] | 2526 | tty_hangup(info->port.tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2527 | } |
| 2528 | } |
| 2529 | |
| 2530 | |
| 2531 | /* |
| 2532 | * Display a modem-register-value. |
| 2533 | */ |
| 2534 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2535 | isdn_tty_show_profile(int ridx, modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2536 | { |
| 2537 | char v[6]; |
| 2538 | |
| 2539 | sprintf(v, "\r\n%d", info->emu.mdmreg[ridx]); |
| 2540 | isdn_tty_at_cout(v, info); |
| 2541 | } |
| 2542 | |
| 2543 | /* |
| 2544 | * Get MSN-string from char-pointer, set pointer to end of number |
| 2545 | */ |
| 2546 | static void |
| 2547 | isdn_tty_get_msnstr(char *n, char **p) |
| 2548 | { |
| 2549 | int limit = ISDN_MSNLEN - 1; |
| 2550 | |
| 2551 | while (((*p[0] >= '0' && *p[0] <= '9') || |
| 2552 | /* Why a comma ??? */ |
| 2553 | (*p[0] == ',') || (*p[0] == ':')) && |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2554 | (limit--)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2555 | *n++ = *p[0]++; |
| 2556 | *n = '\0'; |
| 2557 | } |
| 2558 | |
| 2559 | /* |
| 2560 | * Get phone-number from modem-commandbuffer |
| 2561 | */ |
| 2562 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2563 | isdn_tty_getdial(char *p, char *q, int cnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2564 | { |
| 2565 | int first = 1; |
| 2566 | int limit = ISDN_MSNLEN - 1; /* MUST match the size of interface var to avoid |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2567 | buffer overflow */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2568 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2569 | while (strchr(" 0123456789,#.*WPTSR-", *p) && *p && --cnt > 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2570 | if ((*p >= '0' && *p <= '9') || ((*p == 'S') && first) || |
Karsten Keil | 924ad15 | 2007-06-01 00:46:55 -0700 | [diff] [blame] | 2571 | ((*p == 'R') && first) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2572 | (*p == '*') || (*p == '#')) { |
| 2573 | *q++ = *p; |
| 2574 | limit--; |
| 2575 | } |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2576 | if (!limit) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2577 | break; |
| 2578 | p++; |
| 2579 | first = 0; |
| 2580 | } |
| 2581 | *q = 0; |
| 2582 | } |
| 2583 | |
| 2584 | #define PARSE_ERROR { isdn_tty_modem_result(RESULT_ERROR, info); return; } |
| 2585 | #define PARSE_ERROR1 { isdn_tty_modem_result(RESULT_ERROR, info); return 1; } |
| 2586 | |
| 2587 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2588 | isdn_tty_report(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2589 | { |
| 2590 | atemu *m = &info->emu; |
| 2591 | char s[80]; |
| 2592 | |
| 2593 | isdn_tty_at_cout("\r\nStatistics of last connection:\r\n\r\n", info); |
| 2594 | sprintf(s, " Remote Number: %s\r\n", info->last_num); |
| 2595 | isdn_tty_at_cout(s, info); |
| 2596 | sprintf(s, " Direction: %s\r\n", info->last_dir ? "outgoing" : "incoming"); |
| 2597 | isdn_tty_at_cout(s, info); |
| 2598 | isdn_tty_at_cout(" Layer-2 Protocol: ", info); |
| 2599 | switch (info->last_l2) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2600 | case ISDN_PROTO_L2_X75I: |
| 2601 | isdn_tty_at_cout("X.75i", info); |
| 2602 | break; |
| 2603 | case ISDN_PROTO_L2_X75UI: |
| 2604 | isdn_tty_at_cout("X.75ui", info); |
| 2605 | break; |
| 2606 | case ISDN_PROTO_L2_X75BUI: |
| 2607 | isdn_tty_at_cout("X.75bui", info); |
| 2608 | break; |
| 2609 | case ISDN_PROTO_L2_HDLC: |
| 2610 | isdn_tty_at_cout("HDLC", info); |
| 2611 | break; |
| 2612 | case ISDN_PROTO_L2_V11096: |
| 2613 | isdn_tty_at_cout("V.110 9600 Baud", info); |
| 2614 | break; |
| 2615 | case ISDN_PROTO_L2_V11019: |
| 2616 | isdn_tty_at_cout("V.110 19200 Baud", info); |
| 2617 | break; |
| 2618 | case ISDN_PROTO_L2_V11038: |
| 2619 | isdn_tty_at_cout("V.110 38400 Baud", info); |
| 2620 | break; |
| 2621 | case ISDN_PROTO_L2_TRANS: |
| 2622 | isdn_tty_at_cout("transparent", info); |
| 2623 | break; |
| 2624 | case ISDN_PROTO_L2_MODEM: |
| 2625 | isdn_tty_at_cout("modem", info); |
| 2626 | break; |
| 2627 | case ISDN_PROTO_L2_FAX: |
| 2628 | isdn_tty_at_cout("fax", info); |
| 2629 | break; |
| 2630 | default: |
| 2631 | isdn_tty_at_cout("unknown", info); |
| 2632 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2633 | } |
| 2634 | if (m->mdmreg[REG_T70] & BIT_T70) { |
| 2635 | isdn_tty_at_cout("/T.70", info); |
| 2636 | if (m->mdmreg[REG_T70] & BIT_T70_EXT) |
| 2637 | isdn_tty_at_cout("+", info); |
| 2638 | } |
| 2639 | isdn_tty_at_cout("\r\n", info); |
| 2640 | isdn_tty_at_cout(" Service: ", info); |
| 2641 | switch (info->last_si) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2642 | case 1: |
| 2643 | isdn_tty_at_cout("audio\r\n", info); |
| 2644 | break; |
| 2645 | case 5: |
| 2646 | isdn_tty_at_cout("btx\r\n", info); |
| 2647 | break; |
| 2648 | case 7: |
| 2649 | isdn_tty_at_cout("data\r\n", info); |
| 2650 | break; |
| 2651 | default: |
| 2652 | sprintf(s, "%d\r\n", info->last_si); |
| 2653 | isdn_tty_at_cout(s, info); |
| 2654 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2655 | } |
| 2656 | sprintf(s, " Hangup location: %s\r\n", info->last_lhup ? "local" : "remote"); |
| 2657 | isdn_tty_at_cout(s, info); |
| 2658 | sprintf(s, " Last cause: %s\r\n", info->last_cause); |
| 2659 | isdn_tty_at_cout(s, info); |
| 2660 | } |
| 2661 | |
| 2662 | /* |
| 2663 | * Parse AT&.. commands. |
| 2664 | */ |
| 2665 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2666 | isdn_tty_cmd_ATand(char **p, modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2667 | { |
| 2668 | atemu *m = &info->emu; |
| 2669 | int i; |
| 2670 | char rb[100]; |
| 2671 | |
| 2672 | #define MAXRB (sizeof(rb) - 1) |
| 2673 | |
| 2674 | switch (*p[0]) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2675 | case 'B': |
| 2676 | /* &B - Set Buffersize */ |
| 2677 | p[0]++; |
| 2678 | i = isdn_getnum(p); |
| 2679 | if ((i < 0) || (i > ISDN_SERIAL_XMIT_MAX)) |
| 2680 | PARSE_ERROR1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2681 | #ifdef CONFIG_ISDN_AUDIO |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2682 | if ((m->mdmreg[REG_SI1] & 1) && (i > VBUF)) |
| 2683 | PARSE_ERROR1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2685 | m->mdmreg[REG_PSIZE] = i / 16; |
| 2686 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; |
| 2687 | switch (m->mdmreg[REG_L2PROT]) { |
| 2688 | case ISDN_PROTO_L2_V11096: |
| 2689 | case ISDN_PROTO_L2_V11019: |
| 2690 | case ISDN_PROTO_L2_V11038: |
| 2691 | info->xmit_size /= 10; |
| 2692 | } |
| 2693 | break; |
| 2694 | case 'C': |
| 2695 | /* &C - DCD Status */ |
| 2696 | p[0]++; |
| 2697 | switch (isdn_getnum(p)) { |
| 2698 | case 0: |
| 2699 | m->mdmreg[REG_DCD] &= ~BIT_DCD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2700 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2701 | case 1: |
| 2702 | m->mdmreg[REG_DCD] |= BIT_DCD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2703 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2704 | default: |
| 2705 | PARSE_ERROR1 |
| 2706 | } |
| 2707 | break; |
| 2708 | case 'D': |
| 2709 | /* &D - Set DTR-Low-behavior */ |
| 2710 | p[0]++; |
| 2711 | switch (isdn_getnum(p)) { |
| 2712 | case 0: |
| 2713 | m->mdmreg[REG_DTRHUP] &= ~BIT_DTRHUP; |
| 2714 | m->mdmreg[REG_DTRR] &= ~BIT_DTRR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2715 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2716 | case 2: |
| 2717 | m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; |
| 2718 | m->mdmreg[REG_DTRR] &= ~BIT_DTRR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2719 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2720 | case 3: |
| 2721 | m->mdmreg[REG_DTRHUP] |= BIT_DTRHUP; |
| 2722 | m->mdmreg[REG_DTRR] |= BIT_DTRR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2723 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2724 | default: |
| 2725 | PARSE_ERROR1 |
| 2726 | } |
| 2727 | break; |
| 2728 | case 'E': |
| 2729 | /* &E -Set EAZ/MSN */ |
| 2730 | p[0]++; |
| 2731 | isdn_tty_get_msnstr(m->msn, p); |
| 2732 | break; |
| 2733 | case 'F': |
| 2734 | /* &F -Set Factory-Defaults */ |
| 2735 | p[0]++; |
| 2736 | if (info->msr & UART_MSR_DCD) |
| 2737 | PARSE_ERROR1; |
| 2738 | isdn_tty_reset_profile(m); |
| 2739 | isdn_tty_modem_reset_regs(info, 1); |
| 2740 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2741 | #ifdef DUMMY_HAYES_AT |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2742 | case 'K': |
| 2743 | /* only for be compilant with common scripts */ |
| 2744 | /* &K Flowcontrol - no function */ |
| 2745 | p[0]++; |
| 2746 | isdn_getnum(p); |
| 2747 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2748 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2749 | case 'L': |
| 2750 | /* &L -Set Numbers to listen on */ |
| 2751 | p[0]++; |
| 2752 | i = 0; |
| 2753 | while (*p[0] && (strchr("0123456789,-*[]?;", *p[0])) && |
| 2754 | (i < ISDN_LMSNLEN - 1)) |
| 2755 | m->lmsn[i++] = *p[0]++; |
| 2756 | m->lmsn[i] = '\0'; |
| 2757 | break; |
| 2758 | case 'R': |
| 2759 | /* &R - Set V.110 bitrate adaption */ |
| 2760 | p[0]++; |
| 2761 | i = isdn_getnum(p); |
| 2762 | switch (i) { |
| 2763 | case 0: |
| 2764 | /* Switch off V.110, back to X.75 */ |
| 2765 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| 2766 | m->mdmreg[REG_SI2] = 0; |
| 2767 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2768 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2769 | case 9600: |
| 2770 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11096; |
| 2771 | m->mdmreg[REG_SI2] = 197; |
| 2772 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2773 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2774 | case 19200: |
| 2775 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11019; |
| 2776 | m->mdmreg[REG_SI2] = 199; |
| 2777 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2778 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2779 | case 38400: |
| 2780 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_V11038; |
| 2781 | m->mdmreg[REG_SI2] = 198; /* no existing standard for this */ |
| 2782 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16 / 10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2783 | break; |
| 2784 | default: |
| 2785 | PARSE_ERROR1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2786 | } |
| 2787 | /* Switch off T.70 */ |
| 2788 | m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); |
| 2789 | /* Set Service 7 */ |
| 2790 | m->mdmreg[REG_SI1] |= 4; |
| 2791 | break; |
| 2792 | case 'S': |
| 2793 | /* &S - Set Windowsize */ |
| 2794 | p[0]++; |
| 2795 | i = isdn_getnum(p); |
| 2796 | if ((i > 0) && (i < 9)) |
| 2797 | m->mdmreg[REG_WSIZE] = i; |
| 2798 | else |
| 2799 | PARSE_ERROR1; |
| 2800 | break; |
| 2801 | case 'V': |
| 2802 | /* &V - Show registers */ |
| 2803 | p[0]++; |
| 2804 | isdn_tty_at_cout("\r\n", info); |
| 2805 | for (i = 0; i < ISDN_MODEM_NUMREG; i++) { |
| 2806 | sprintf(rb, "S%02d=%03d%s", i, |
| 2807 | m->mdmreg[i], ((i + 1) % 10) ? " " : "\r\n"); |
| 2808 | isdn_tty_at_cout(rb, info); |
| 2809 | } |
| 2810 | sprintf(rb, "\r\nEAZ/MSN: %.50s\r\n", |
| 2811 | strlen(m->msn) ? m->msn : "None"); |
| 2812 | isdn_tty_at_cout(rb, info); |
| 2813 | if (strlen(m->lmsn)) { |
| 2814 | isdn_tty_at_cout("\r\nListen: ", info); |
| 2815 | isdn_tty_at_cout(m->lmsn, info); |
| 2816 | isdn_tty_at_cout("\r\n", info); |
| 2817 | } |
| 2818 | break; |
| 2819 | case 'W': |
| 2820 | /* &W - Write Profile */ |
| 2821 | p[0]++; |
| 2822 | switch (*p[0]) { |
| 2823 | case '0': |
| 2824 | p[0]++; |
| 2825 | modem_write_profile(m); |
| 2826 | break; |
| 2827 | default: |
| 2828 | PARSE_ERROR1; |
| 2829 | } |
| 2830 | break; |
| 2831 | case 'X': |
| 2832 | /* &X - Switch to BTX-Mode and T.70 */ |
| 2833 | p[0]++; |
| 2834 | switch (isdn_getnum(p)) { |
| 2835 | case 0: |
| 2836 | m->mdmreg[REG_T70] &= ~(BIT_T70 | BIT_T70_EXT); |
| 2837 | info->xmit_size = m->mdmreg[REG_PSIZE] * 16; |
| 2838 | break; |
| 2839 | case 1: |
| 2840 | m->mdmreg[REG_T70] |= BIT_T70; |
| 2841 | m->mdmreg[REG_T70] &= ~BIT_T70_EXT; |
| 2842 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| 2843 | info->xmit_size = 112; |
| 2844 | m->mdmreg[REG_SI1] = 4; |
| 2845 | m->mdmreg[REG_SI2] = 0; |
| 2846 | break; |
| 2847 | case 2: |
| 2848 | m->mdmreg[REG_T70] |= (BIT_T70 | BIT_T70_EXT); |
| 2849 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| 2850 | info->xmit_size = 112; |
| 2851 | m->mdmreg[REG_SI1] = 4; |
| 2852 | m->mdmreg[REG_SI2] = 0; |
| 2853 | break; |
| 2854 | default: |
| 2855 | PARSE_ERROR1; |
| 2856 | } |
| 2857 | break; |
| 2858 | default: |
| 2859 | PARSE_ERROR1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2860 | } |
| 2861 | return 0; |
| 2862 | } |
| 2863 | |
| 2864 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2865 | isdn_tty_check_ats(int mreg, int mval, modem_info *info, atemu *m) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2866 | { |
| 2867 | /* Some plausibility checks */ |
| 2868 | switch (mreg) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2869 | case REG_L2PROT: |
| 2870 | if (mval > ISDN_PROTO_L2_MAX) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2871 | return 1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2872 | break; |
| 2873 | case REG_PSIZE: |
| 2874 | if ((mval * 16) > ISDN_SERIAL_XMIT_MAX) |
| 2875 | return 1; |
| 2876 | #ifdef CONFIG_ISDN_AUDIO |
| 2877 | if ((m->mdmreg[REG_SI1] & 1) && (mval > VBUFX)) |
| 2878 | return 1; |
| 2879 | #endif |
| 2880 | info->xmit_size = mval * 16; |
| 2881 | switch (m->mdmreg[REG_L2PROT]) { |
| 2882 | case ISDN_PROTO_L2_V11096: |
| 2883 | case ISDN_PROTO_L2_V11019: |
| 2884 | case ISDN_PROTO_L2_V11038: |
| 2885 | info->xmit_size /= 10; |
| 2886 | } |
| 2887 | break; |
| 2888 | case REG_SI1I: |
| 2889 | case REG_PLAN: |
| 2890 | case REG_SCREEN: |
| 2891 | /* readonly registers */ |
| 2892 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2893 | } |
| 2894 | return 0; |
| 2895 | } |
| 2896 | |
| 2897 | /* |
| 2898 | * Perform ATS command |
| 2899 | */ |
| 2900 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2901 | isdn_tty_cmd_ATS(char **p, modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2902 | { |
| 2903 | atemu *m = &info->emu; |
| 2904 | int bitpos; |
| 2905 | int mreg; |
| 2906 | int mval; |
| 2907 | int bval; |
| 2908 | |
| 2909 | mreg = isdn_getnum(p); |
| 2910 | if (mreg < 0 || mreg >= ISDN_MODEM_NUMREG) |
| 2911 | PARSE_ERROR1; |
| 2912 | switch (*p[0]) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2913 | case '=': |
| 2914 | p[0]++; |
| 2915 | mval = isdn_getnum(p); |
| 2916 | if (mval < 0 || mval > 255) |
| 2917 | PARSE_ERROR1; |
| 2918 | if (isdn_tty_check_ats(mreg, mval, info, m)) |
| 2919 | PARSE_ERROR1; |
| 2920 | m->mdmreg[mreg] = mval; |
| 2921 | break; |
| 2922 | case '.': |
| 2923 | /* Set/Clear a single bit */ |
| 2924 | p[0]++; |
| 2925 | bitpos = isdn_getnum(p); |
| 2926 | if ((bitpos < 0) || (bitpos > 7)) |
| 2927 | PARSE_ERROR1; |
| 2928 | switch (*p[0]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2929 | case '=': |
| 2930 | p[0]++; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2931 | bval = isdn_getnum(p); |
| 2932 | if (bval < 0 || bval > 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2933 | PARSE_ERROR1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2934 | if (bval) |
| 2935 | mval = m->mdmreg[mreg] | (1 << bitpos); |
| 2936 | else |
| 2937 | mval = m->mdmreg[mreg] & ~(1 << bitpos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2938 | if (isdn_tty_check_ats(mreg, mval, info, m)) |
| 2939 | PARSE_ERROR1; |
| 2940 | m->mdmreg[mreg] = mval; |
| 2941 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2942 | case '?': |
| 2943 | p[0]++; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2944 | isdn_tty_at_cout("\r\n", info); |
| 2945 | isdn_tty_at_cout((m->mdmreg[mreg] & (1 << bitpos)) ? "1" : "0", |
| 2946 | info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2947 | break; |
| 2948 | default: |
| 2949 | PARSE_ERROR1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2950 | } |
| 2951 | break; |
| 2952 | case '?': |
| 2953 | p[0]++; |
| 2954 | isdn_tty_show_profile(mreg, info); |
| 2955 | break; |
| 2956 | default: |
| 2957 | PARSE_ERROR1; |
| 2958 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2959 | } |
| 2960 | return 0; |
| 2961 | } |
| 2962 | |
| 2963 | /* |
| 2964 | * Perform ATA command |
| 2965 | */ |
| 2966 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2967 | isdn_tty_cmd_ATA(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2968 | { |
| 2969 | atemu *m = &info->emu; |
| 2970 | isdn_ctrl cmd; |
| 2971 | int l2; |
| 2972 | |
| 2973 | if (info->msr & UART_MSR_RI) { |
| 2974 | /* Accept incoming call */ |
| 2975 | info->last_dir = 0; |
| 2976 | strcpy(info->last_num, dev->num[info->drv_index]); |
| 2977 | m->mdmreg[REG_RINGCNT] = 0; |
| 2978 | info->msr &= ~UART_MSR_RI; |
| 2979 | l2 = m->mdmreg[REG_L2PROT]; |
| 2980 | #ifdef CONFIG_ISDN_AUDIO |
| 2981 | /* If more than one bit set in reg18, autoselect Layer2 */ |
| 2982 | if ((m->mdmreg[REG_SI1] & m->mdmreg[REG_SI1I]) != m->mdmreg[REG_SI1]) { |
| 2983 | if (m->mdmreg[REG_SI1I] == 1) { |
| 2984 | if ((l2 != ISDN_PROTO_L2_MODEM) && (l2 != ISDN_PROTO_L2_FAX)) |
| 2985 | l2 = ISDN_PROTO_L2_TRANS; |
| 2986 | } else |
| 2987 | l2 = ISDN_PROTO_L2_X75I; |
| 2988 | } |
| 2989 | #endif |
| 2990 | cmd.driver = info->isdn_driver; |
| 2991 | cmd.command = ISDN_CMD_SETL2; |
| 2992 | cmd.arg = info->isdn_channel + (l2 << 8); |
| 2993 | info->last_l2 = l2; |
| 2994 | isdn_command(&cmd); |
| 2995 | cmd.driver = info->isdn_driver; |
| 2996 | cmd.command = ISDN_CMD_SETL3; |
| 2997 | cmd.arg = info->isdn_channel + (m->mdmreg[REG_L3PROT] << 8); |
| 2998 | #ifdef CONFIG_ISDN_TTY_FAX |
| 2999 | if (l2 == ISDN_PROTO_L2_FAX) { |
| 3000 | cmd.parm.fax = info->fax; |
| 3001 | info->fax->direction = ISDN_TTY_FAX_CONN_IN; |
| 3002 | } |
| 3003 | #endif |
| 3004 | isdn_command(&cmd); |
| 3005 | cmd.driver = info->isdn_driver; |
| 3006 | cmd.arg = info->isdn_channel; |
| 3007 | cmd.command = ISDN_CMD_ACCEPTD; |
| 3008 | info->dialing = 16; |
| 3009 | info->emu.carrierwait = 0; |
| 3010 | isdn_command(&cmd); |
| 3011 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, 1); |
| 3012 | } else |
| 3013 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); |
| 3014 | } |
| 3015 | |
| 3016 | #ifdef CONFIG_ISDN_AUDIO |
| 3017 | /* |
| 3018 | * Parse AT+F.. commands |
| 3019 | */ |
| 3020 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3021 | isdn_tty_cmd_PLUSF(char **p, modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3022 | { |
| 3023 | atemu *m = &info->emu; |
| 3024 | char rs[20]; |
| 3025 | |
| 3026 | if (!strncmp(p[0], "CLASS", 5)) { |
| 3027 | p[0] += 5; |
| 3028 | switch (*p[0]) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3029 | case '?': |
| 3030 | p[0]++; |
| 3031 | sprintf(rs, "\r\n%d", |
| 3032 | (m->mdmreg[REG_SI1] & 1) ? 8 : 0); |
| 3033 | #ifdef CONFIG_ISDN_TTY_FAX |
| 3034 | if (TTY_IS_FCLASS2(info)) |
| 3035 | sprintf(rs, "\r\n2"); |
| 3036 | else if (TTY_IS_FCLASS1(info)) |
| 3037 | sprintf(rs, "\r\n1"); |
| 3038 | #endif |
| 3039 | isdn_tty_at_cout(rs, info); |
| 3040 | break; |
| 3041 | case '=': |
| 3042 | p[0]++; |
| 3043 | switch (*p[0]) { |
| 3044 | case '0': |
| 3045 | p[0]++; |
| 3046 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| 3047 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; |
| 3048 | m->mdmreg[REG_SI1] = 4; |
| 3049 | info->xmit_size = |
| 3050 | m->mdmreg[REG_PSIZE] * 16; |
| 3051 | break; |
| 3052 | #ifdef CONFIG_ISDN_TTY_FAX |
| 3053 | case '1': |
| 3054 | p[0]++; |
| 3055 | if (!(dev->global_features & |
| 3056 | ISDN_FEATURE_L3_FCLASS1)) |
| 3057 | PARSE_ERROR1; |
| 3058 | m->mdmreg[REG_SI1] = 1; |
| 3059 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; |
| 3060 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS1; |
| 3061 | info->xmit_size = |
| 3062 | m->mdmreg[REG_PSIZE] * 16; |
| 3063 | break; |
| 3064 | case '2': |
| 3065 | p[0]++; |
| 3066 | if (!(dev->global_features & |
| 3067 | ISDN_FEATURE_L3_FCLASS2)) |
| 3068 | PARSE_ERROR1; |
| 3069 | m->mdmreg[REG_SI1] = 1; |
| 3070 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_FAX; |
| 3071 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_FCLASS2; |
| 3072 | info->xmit_size = |
| 3073 | m->mdmreg[REG_PSIZE] * 16; |
| 3074 | break; |
| 3075 | #endif |
| 3076 | case '8': |
| 3077 | p[0]++; |
| 3078 | /* L2 will change on dialout with si=1 */ |
| 3079 | m->mdmreg[REG_L2PROT] = ISDN_PROTO_L2_X75I; |
| 3080 | m->mdmreg[REG_L3PROT] = ISDN_PROTO_L3_TRANS; |
| 3081 | m->mdmreg[REG_SI1] = 5; |
| 3082 | info->xmit_size = VBUF; |
| 3083 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3084 | case '?': |
| 3085 | p[0]++; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3086 | strcpy(rs, "\r\n0,"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3087 | #ifdef CONFIG_ISDN_TTY_FAX |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3088 | if (dev->global_features & |
| 3089 | ISDN_FEATURE_L3_FCLASS1) |
| 3090 | strcat(rs, "1,"); |
| 3091 | if (dev->global_features & |
| 3092 | ISDN_FEATURE_L3_FCLASS2) |
| 3093 | strcat(rs, "2,"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3094 | #endif |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3095 | strcat(rs, "8"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3096 | isdn_tty_at_cout(rs, info); |
| 3097 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3098 | default: |
| 3099 | PARSE_ERROR1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3100 | } |
| 3101 | break; |
| 3102 | default: |
| 3103 | PARSE_ERROR1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3104 | } |
| 3105 | return 0; |
| 3106 | } |
| 3107 | #ifdef CONFIG_ISDN_TTY_FAX |
| 3108 | return (isdn_tty_cmd_PLUSF_FAX(p, info)); |
| 3109 | #else |
| 3110 | PARSE_ERROR1; |
| 3111 | #endif |
| 3112 | } |
| 3113 | |
| 3114 | /* |
| 3115 | * Parse AT+V.. commands |
| 3116 | */ |
| 3117 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3118 | isdn_tty_cmd_PLUSV(char **p, modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3119 | { |
| 3120 | atemu *m = &info->emu; |
| 3121 | isdn_ctrl cmd; |
| 3122 | static char *vcmd[] = |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3123 | {"NH", "IP", "LS", "RX", "SD", "SM", "TX", "DD", NULL}; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3124 | int i; |
| 3125 | int par1; |
| 3126 | int par2; |
| 3127 | char rs[20]; |
| 3128 | |
| 3129 | i = 0; |
| 3130 | while (vcmd[i]) { |
| 3131 | if (!strncmp(vcmd[i], p[0], 2)) { |
| 3132 | p[0] += 2; |
| 3133 | break; |
| 3134 | } |
| 3135 | i++; |
| 3136 | } |
| 3137 | switch (i) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3138 | case 0: |
| 3139 | /* AT+VNH - Auto hangup feature */ |
| 3140 | switch (*p[0]) { |
| 3141 | case '?': |
| 3142 | p[0]++; |
| 3143 | isdn_tty_at_cout("\r\n1", info); |
| 3144 | break; |
| 3145 | case '=': |
| 3146 | p[0]++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3147 | switch (*p[0]) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3148 | case '1': |
| 3149 | p[0]++; |
| 3150 | break; |
| 3151 | case '?': |
| 3152 | p[0]++; |
| 3153 | isdn_tty_at_cout("\r\n1", info); |
| 3154 | break; |
| 3155 | default: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3156 | PARSE_ERROR1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3157 | } |
| 3158 | break; |
| 3159 | default: |
| 3160 | PARSE_ERROR1; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3161 | } |
| 3162 | break; |
| 3163 | case 1: |
| 3164 | /* AT+VIP - Reset all voice parameters */ |
| 3165 | isdn_tty_modem_reset_vpar(m); |
| 3166 | break; |
| 3167 | case 2: |
| 3168 | /* AT+VLS - Select device, accept incoming call */ |
| 3169 | switch (*p[0]) { |
| 3170 | case '?': |
| 3171 | p[0]++; |
| 3172 | sprintf(rs, "\r\n%d", m->vpar[0]); |
| 3173 | isdn_tty_at_cout(rs, info); |
| 3174 | break; |
| 3175 | case '=': |
| 3176 | p[0]++; |
| 3177 | switch (*p[0]) { |
| 3178 | case '0': |
| 3179 | p[0]++; |
| 3180 | m->vpar[0] = 0; |
| 3181 | break; |
| 3182 | case '2': |
| 3183 | p[0]++; |
| 3184 | m->vpar[0] = 2; |
| 3185 | break; |
| 3186 | case '?': |
| 3187 | p[0]++; |
| 3188 | isdn_tty_at_cout("\r\n0,2", info); |
| 3189 | break; |
| 3190 | default: |
| 3191 | PARSE_ERROR1; |
| 3192 | } |
| 3193 | break; |
| 3194 | default: |
| 3195 | PARSE_ERROR1; |
| 3196 | } |
| 3197 | break; |
| 3198 | case 3: |
| 3199 | /* AT+VRX - Start recording */ |
| 3200 | if (!m->vpar[0]) |
| 3201 | PARSE_ERROR1; |
| 3202 | if (info->online != 1) { |
| 3203 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); |
| 3204 | return 1; |
| 3205 | } |
| 3206 | info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); |
| 3207 | if (!info->dtmf_state) { |
| 3208 | printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); |
| 3209 | PARSE_ERROR1; |
| 3210 | } |
| 3211 | info->silence_state = isdn_audio_silence_init(info->silence_state); |
| 3212 | if (!info->silence_state) { |
| 3213 | printk(KERN_WARNING "isdn_tty: Couldn't malloc silence state\n"); |
| 3214 | PARSE_ERROR1; |
| 3215 | } |
| 3216 | if (m->vpar[3] < 5) { |
| 3217 | info->adpcmr = isdn_audio_adpcm_init(info->adpcmr, m->vpar[3]); |
| 3218 | if (!info->adpcmr) { |
| 3219 | printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); |
| 3220 | PARSE_ERROR1; |
| 3221 | } |
| 3222 | } |
| 3223 | #ifdef ISDN_DEBUG_AT |
| 3224 | printk(KERN_DEBUG "AT: +VRX\n"); |
| 3225 | #endif |
| 3226 | info->vonline |= 1; |
| 3227 | isdn_tty_modem_result(RESULT_CONNECT, info); |
| 3228 | return 0; |
| 3229 | break; |
| 3230 | case 4: |
| 3231 | /* AT+VSD - Silence detection */ |
| 3232 | switch (*p[0]) { |
| 3233 | case '?': |
| 3234 | p[0]++; |
| 3235 | sprintf(rs, "\r\n<%d>,<%d>", |
| 3236 | m->vpar[1], |
| 3237 | m->vpar[2]); |
| 3238 | isdn_tty_at_cout(rs, info); |
| 3239 | break; |
| 3240 | case '=': |
| 3241 | p[0]++; |
| 3242 | if ((*p[0] >= '0') && (*p[0] <= '9')) { |
| 3243 | par1 = isdn_getnum(p); |
| 3244 | if ((par1 < 0) || (par1 > 31)) |
| 3245 | PARSE_ERROR1; |
| 3246 | if (*p[0] != ',') |
| 3247 | PARSE_ERROR1; |
| 3248 | p[0]++; |
| 3249 | par2 = isdn_getnum(p); |
| 3250 | if ((par2 < 0) || (par2 > 255)) |
| 3251 | PARSE_ERROR1; |
| 3252 | m->vpar[1] = par1; |
| 3253 | m->vpar[2] = par2; |
| 3254 | break; |
| 3255 | } else |
| 3256 | if (*p[0] == '?') { |
| 3257 | p[0]++; |
| 3258 | isdn_tty_at_cout("\r\n<0-31>,<0-255>", |
| 3259 | info); |
| 3260 | break; |
| 3261 | } else |
| 3262 | PARSE_ERROR1; |
| 3263 | break; |
| 3264 | default: |
| 3265 | PARSE_ERROR1; |
| 3266 | } |
| 3267 | break; |
| 3268 | case 5: |
| 3269 | /* AT+VSM - Select compression */ |
| 3270 | switch (*p[0]) { |
| 3271 | case '?': |
| 3272 | p[0]++; |
| 3273 | sprintf(rs, "\r\n<%d>,<%d><8000>", |
| 3274 | m->vpar[3], |
| 3275 | m->vpar[1]); |
| 3276 | isdn_tty_at_cout(rs, info); |
| 3277 | break; |
| 3278 | case '=': |
| 3279 | p[0]++; |
| 3280 | switch (*p[0]) { |
| 3281 | case '2': |
| 3282 | case '3': |
| 3283 | case '4': |
| 3284 | case '5': |
| 3285 | case '6': |
| 3286 | par1 = isdn_getnum(p); |
| 3287 | if ((par1 < 2) || (par1 > 6)) |
| 3288 | PARSE_ERROR1; |
| 3289 | m->vpar[3] = par1; |
| 3290 | break; |
| 3291 | case '?': |
| 3292 | p[0]++; |
| 3293 | isdn_tty_at_cout("\r\n2;ADPCM;2;0;(8000)\r\n", |
| 3294 | info); |
| 3295 | isdn_tty_at_cout("3;ADPCM;3;0;(8000)\r\n", |
| 3296 | info); |
| 3297 | isdn_tty_at_cout("4;ADPCM;4;0;(8000)\r\n", |
| 3298 | info); |
| 3299 | isdn_tty_at_cout("5;ALAW;8;0;(8000)\r\n", |
| 3300 | info); |
| 3301 | isdn_tty_at_cout("6;ULAW;8;0;(8000)\r\n", |
| 3302 | info); |
| 3303 | break; |
| 3304 | default: |
| 3305 | PARSE_ERROR1; |
| 3306 | } |
| 3307 | break; |
| 3308 | default: |
| 3309 | PARSE_ERROR1; |
| 3310 | } |
| 3311 | break; |
| 3312 | case 6: |
| 3313 | /* AT+VTX - Start sending */ |
| 3314 | if (!m->vpar[0]) |
| 3315 | PARSE_ERROR1; |
| 3316 | if (info->online != 1) { |
| 3317 | isdn_tty_modem_result(RESULT_NO_ANSWER, info); |
| 3318 | return 1; |
| 3319 | } |
| 3320 | info->dtmf_state = isdn_audio_dtmf_init(info->dtmf_state); |
| 3321 | if (!info->dtmf_state) { |
| 3322 | printk(KERN_WARNING "isdn_tty: Couldn't malloc dtmf state\n"); |
| 3323 | PARSE_ERROR1; |
| 3324 | } |
| 3325 | if (m->vpar[3] < 5) { |
| 3326 | info->adpcms = isdn_audio_adpcm_init(info->adpcms, m->vpar[3]); |
| 3327 | if (!info->adpcms) { |
| 3328 | printk(KERN_WARNING "isdn_tty: Couldn't malloc adpcm state\n"); |
| 3329 | PARSE_ERROR1; |
| 3330 | } |
| 3331 | } |
| 3332 | #ifdef ISDN_DEBUG_AT |
| 3333 | printk(KERN_DEBUG "AT: +VTX\n"); |
| 3334 | #endif |
| 3335 | m->lastDLE = 0; |
| 3336 | info->vonline |= 2; |
| 3337 | isdn_tty_modem_result(RESULT_CONNECT, info); |
| 3338 | return 0; |
| 3339 | break; |
| 3340 | case 7: |
| 3341 | /* AT+VDD - DTMF detection */ |
| 3342 | switch (*p[0]) { |
| 3343 | case '?': |
| 3344 | p[0]++; |
| 3345 | sprintf(rs, "\r\n<%d>,<%d>", |
| 3346 | m->vpar[4], |
| 3347 | m->vpar[5]); |
| 3348 | isdn_tty_at_cout(rs, info); |
| 3349 | break; |
| 3350 | case '=': |
| 3351 | p[0]++; |
| 3352 | if ((*p[0] >= '0') && (*p[0] <= '9')) { |
| 3353 | if (info->online != 1) |
| 3354 | PARSE_ERROR1; |
| 3355 | par1 = isdn_getnum(p); |
| 3356 | if ((par1 < 0) || (par1 > 15)) |
| 3357 | PARSE_ERROR1; |
| 3358 | if (*p[0] != ',') |
| 3359 | PARSE_ERROR1; |
| 3360 | p[0]++; |
| 3361 | par2 = isdn_getnum(p); |
| 3362 | if ((par2 < 0) || (par2 > 255)) |
| 3363 | PARSE_ERROR1; |
| 3364 | m->vpar[4] = par1; |
| 3365 | m->vpar[5] = par2; |
| 3366 | cmd.driver = info->isdn_driver; |
| 3367 | cmd.command = ISDN_CMD_AUDIO; |
| 3368 | cmd.arg = info->isdn_channel + (ISDN_AUDIO_SETDD << 8); |
| 3369 | cmd.parm.num[0] = par1; |
| 3370 | cmd.parm.num[1] = par2; |
| 3371 | isdn_command(&cmd); |
| 3372 | break; |
| 3373 | } else |
| 3374 | if (*p[0] == '?') { |
| 3375 | p[0]++; |
| 3376 | isdn_tty_at_cout("\r\n<0-15>,<0-255>", |
| 3377 | info); |
| 3378 | break; |
| 3379 | } else |
| 3380 | PARSE_ERROR1; |
| 3381 | break; |
| 3382 | default: |
| 3383 | PARSE_ERROR1; |
| 3384 | } |
| 3385 | break; |
| 3386 | default: |
| 3387 | PARSE_ERROR1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3388 | } |
| 3389 | return 0; |
| 3390 | } |
| 3391 | #endif /* CONFIG_ISDN_AUDIO */ |
| 3392 | |
| 3393 | /* |
| 3394 | * Parse and perform an AT-command-line. |
| 3395 | */ |
| 3396 | static void |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3397 | isdn_tty_parse_at(modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3398 | { |
| 3399 | atemu *m = &info->emu; |
| 3400 | char *p; |
Dan Carpenter | f417f5e | 2010-09-04 08:33:03 +0000 | [diff] [blame] | 3401 | char ds[ISDN_MSNLEN]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3402 | |
| 3403 | #ifdef ISDN_DEBUG_AT |
| 3404 | printk(KERN_DEBUG "AT: '%s'\n", m->mdmcmd); |
| 3405 | #endif |
| 3406 | for (p = &m->mdmcmd[2]; *p;) { |
| 3407 | switch (*p) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3408 | case ' ': |
| 3409 | p++; |
| 3410 | break; |
| 3411 | case 'A': |
| 3412 | /* A - Accept incoming call */ |
| 3413 | p++; |
| 3414 | isdn_tty_cmd_ATA(info); |
| 3415 | return; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3416 | case 'D': |
| 3417 | /* D - Dial */ |
| 3418 | if (info->msr & UART_MSR_DCD) |
| 3419 | PARSE_ERROR; |
| 3420 | if (info->msr & UART_MSR_RI) { |
| 3421 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3422 | return; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3423 | } |
| 3424 | isdn_tty_getdial(++p, ds, sizeof ds); |
| 3425 | p += strlen(p); |
| 3426 | if (!strlen(m->msn)) |
| 3427 | isdn_tty_modem_result(RESULT_NO_MSN_EAZ, info); |
| 3428 | else if (strlen(ds)) |
| 3429 | isdn_tty_dial(ds, info, m); |
| 3430 | else |
| 3431 | PARSE_ERROR; |
| 3432 | return; |
| 3433 | case 'E': |
| 3434 | /* E - Turn Echo on/off */ |
| 3435 | p++; |
| 3436 | switch (isdn_getnum(&p)) { |
| 3437 | case 0: |
| 3438 | m->mdmreg[REG_ECHO] &= ~BIT_ECHO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3439 | break; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3440 | case 1: |
| 3441 | m->mdmreg[REG_ECHO] |= BIT_ECHO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3442 | break; |
| 3443 | default: |
| 3444 | PARSE_ERROR; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3445 | } |
| 3446 | break; |
| 3447 | case 'H': |
| 3448 | /* H - On/Off-hook */ |
| 3449 | p++; |
| 3450 | switch (*p) { |
| 3451 | case '0': |
| 3452 | p++; |
| 3453 | isdn_tty_on_hook(info); |
| 3454 | break; |
| 3455 | case '1': |
| 3456 | p++; |
| 3457 | isdn_tty_off_hook(); |
| 3458 | break; |
| 3459 | default: |
| 3460 | isdn_tty_on_hook(info); |
| 3461 | break; |
| 3462 | } |
| 3463 | break; |
| 3464 | case 'I': |
| 3465 | /* I - Information */ |
| 3466 | p++; |
| 3467 | isdn_tty_at_cout("\r\nLinux ISDN", info); |
| 3468 | switch (*p) { |
| 3469 | case '0': |
| 3470 | case '1': |
| 3471 | p++; |
| 3472 | break; |
| 3473 | case '2': |
| 3474 | p++; |
| 3475 | isdn_tty_report(info); |
| 3476 | break; |
| 3477 | case '3': |
| 3478 | p++; |
| 3479 | snprintf(ds, sizeof(ds), "\r\n%d", info->emu.charge); |
| 3480 | isdn_tty_at_cout(ds, info); |
| 3481 | break; |
| 3482 | default:; |
| 3483 | } |
| 3484 | break; |
| 3485 | #ifdef DUMMY_HAYES_AT |
| 3486 | case 'L': |
| 3487 | case 'M': |
| 3488 | /* only for be compilant with common scripts */ |
| 3489 | /* no function */ |
| 3490 | p++; |
| 3491 | isdn_getnum(&p); |
| 3492 | break; |
| 3493 | #endif |
| 3494 | case 'O': |
| 3495 | /* O - Go online */ |
| 3496 | p++; |
| 3497 | if (info->msr & UART_MSR_DCD) |
| 3498 | /* if B-Channel is up */ |
| 3499 | isdn_tty_modem_result((m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM) ? RESULT_CONNECT : RESULT_CONNECT64000, info); |
| 3500 | else |
| 3501 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| 3502 | return; |
| 3503 | case 'Q': |
| 3504 | /* Q - Turn Emulator messages on/off */ |
| 3505 | p++; |
| 3506 | switch (isdn_getnum(&p)) { |
| 3507 | case 0: |
| 3508 | m->mdmreg[REG_RESP] |= BIT_RESP; |
| 3509 | break; |
| 3510 | case 1: |
| 3511 | m->mdmreg[REG_RESP] &= ~BIT_RESP; |
| 3512 | break; |
| 3513 | default: |
| 3514 | PARSE_ERROR; |
| 3515 | } |
| 3516 | break; |
| 3517 | case 'S': |
| 3518 | /* S - Set/Get Register */ |
| 3519 | p++; |
| 3520 | if (isdn_tty_cmd_ATS(&p, info)) |
| 3521 | return; |
| 3522 | break; |
| 3523 | case 'V': |
| 3524 | /* V - Numeric or ASCII Emulator-messages */ |
| 3525 | p++; |
| 3526 | switch (isdn_getnum(&p)) { |
| 3527 | case 0: |
| 3528 | m->mdmreg[REG_RESP] |= BIT_RESPNUM; |
| 3529 | break; |
| 3530 | case 1: |
| 3531 | m->mdmreg[REG_RESP] &= ~BIT_RESPNUM; |
| 3532 | break; |
| 3533 | default: |
| 3534 | PARSE_ERROR; |
| 3535 | } |
| 3536 | break; |
| 3537 | case 'Z': |
| 3538 | /* Z - Load Registers from Profile */ |
| 3539 | p++; |
| 3540 | if (info->msr & UART_MSR_DCD) { |
| 3541 | info->online = 0; |
| 3542 | isdn_tty_on_hook(info); |
| 3543 | } |
| 3544 | isdn_tty_modem_reset_regs(info, 1); |
| 3545 | break; |
| 3546 | case '+': |
| 3547 | p++; |
| 3548 | switch (*p) { |
| 3549 | #ifdef CONFIG_ISDN_AUDIO |
| 3550 | case 'F': |
| 3551 | p++; |
| 3552 | if (isdn_tty_cmd_PLUSF(&p, info)) |
| 3553 | return; |
| 3554 | break; |
| 3555 | case 'V': |
| 3556 | if ((!(m->mdmreg[REG_SI1] & 1)) || |
| 3557 | (m->mdmreg[REG_L2PROT] == ISDN_PROTO_L2_MODEM)) |
| 3558 | PARSE_ERROR; |
| 3559 | p++; |
| 3560 | if (isdn_tty_cmd_PLUSV(&p, info)) |
| 3561 | return; |
| 3562 | break; |
| 3563 | #endif /* CONFIG_ISDN_AUDIO */ |
| 3564 | case 'S': /* SUSPEND */ |
| 3565 | p++; |
| 3566 | isdn_tty_get_msnstr(ds, &p); |
| 3567 | isdn_tty_suspend(ds, info, m); |
| 3568 | break; |
| 3569 | case 'R': /* RESUME */ |
| 3570 | p++; |
| 3571 | isdn_tty_get_msnstr(ds, &p); |
| 3572 | isdn_tty_resume(ds, info, m); |
| 3573 | break; |
| 3574 | case 'M': /* MESSAGE */ |
| 3575 | p++; |
| 3576 | isdn_tty_send_msg(info, m, p); |
| 3577 | break; |
| 3578 | default: |
| 3579 | PARSE_ERROR; |
| 3580 | } |
| 3581 | break; |
| 3582 | case '&': |
| 3583 | p++; |
| 3584 | if (isdn_tty_cmd_ATand(&p, info)) |
| 3585 | return; |
| 3586 | break; |
| 3587 | default: |
| 3588 | PARSE_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3589 | } |
| 3590 | } |
| 3591 | #ifdef CONFIG_ISDN_AUDIO |
| 3592 | if (!info->vonline) |
| 3593 | #endif |
| 3594 | isdn_tty_modem_result(RESULT_OK, info); |
| 3595 | } |
| 3596 | |
| 3597 | /* Need own toupper() because standard-toupper is not available |
| 3598 | * within modules. |
| 3599 | */ |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3600 | #define my_toupper(c) (((c >= 'a') && (c <= 'z')) ? (c & 0xdf) : c) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3601 | |
| 3602 | /* |
| 3603 | * Perform line-editing of AT-commands |
| 3604 | * |
| 3605 | * Parameters: |
| 3606 | * p inputbuffer |
| 3607 | * count length of buffer |
| 3608 | * channel index to line (minor-device) |
| 3609 | */ |
| 3610 | static int |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3611 | isdn_tty_edit_at(const char *p, int count, modem_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3612 | { |
| 3613 | atemu *m = &info->emu; |
| 3614 | int total = 0; |
| 3615 | u_char c; |
| 3616 | char eb[2]; |
| 3617 | int cnt; |
| 3618 | |
| 3619 | for (cnt = count; cnt > 0; p++, cnt--) { |
| 3620 | c = *p; |
| 3621 | total++; |
| 3622 | if (c == m->mdmreg[REG_CR] || c == m->mdmreg[REG_LF]) { |
| 3623 | /* Separator (CR or LF) */ |
| 3624 | m->mdmcmd[m->mdmcmdl] = 0; |
| 3625 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) { |
| 3626 | eb[0] = c; |
| 3627 | eb[1] = 0; |
| 3628 | isdn_tty_at_cout(eb, info); |
| 3629 | } |
| 3630 | if ((m->mdmcmdl >= 2) && (!(strncmp(m->mdmcmd, "AT", 2)))) |
| 3631 | isdn_tty_parse_at(info); |
| 3632 | m->mdmcmdl = 0; |
| 3633 | continue; |
| 3634 | } |
| 3635 | if (c == m->mdmreg[REG_BS] && m->mdmreg[REG_BS] < 128) { |
| 3636 | /* Backspace-Function */ |
| 3637 | if ((m->mdmcmdl > 2) || (!m->mdmcmdl)) { |
| 3638 | if (m->mdmcmdl) |
| 3639 | m->mdmcmdl--; |
| 3640 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) |
| 3641 | isdn_tty_at_cout("\b", info); |
| 3642 | } |
| 3643 | continue; |
| 3644 | } |
| 3645 | if (cmdchar(c)) { |
| 3646 | if (m->mdmreg[REG_ECHO] & BIT_ECHO) { |
| 3647 | eb[0] = c; |
| 3648 | eb[1] = 0; |
| 3649 | isdn_tty_at_cout(eb, info); |
| 3650 | } |
| 3651 | if (m->mdmcmdl < 255) { |
| 3652 | c = my_toupper(c); |
| 3653 | switch (m->mdmcmdl) { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3654 | case 1: |
| 3655 | if (c == 'T') { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3656 | m->mdmcmd[m->mdmcmdl] = c; |
| 3657 | m->mdmcmd[++m->mdmcmdl] = 0; |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 3658 | break; |
| 3659 | } else |
| 3660 | m->mdmcmdl = 0; |
| 3661 | /* Fall through, check for 'A' */ |
| 3662 | case 0: |
| 3663 | if (c == 'A') { |
| 3664 | m->mdmcmd[m->mdmcmdl] = c; |
| 3665 | m->mdmcmd[++m->mdmcmdl] = 0; |
| 3666 | } |
| 3667 | break; |
| 3668 | default: |
| 3669 | m->mdmcmd[m->mdmcmdl] = c; |
| 3670 | m->mdmcmd[++m->mdmcmdl] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3671 | } |
| 3672 | } |
| 3673 | } |
| 3674 | } |
| 3675 | return total; |
| 3676 | } |
| 3677 | |
| 3678 | /* |
| 3679 | * Switch all modem-channels who are online and got a valid |
| 3680 | * escape-sequence 1.5 seconds ago, to command-mode. |
| 3681 | * This function is called every second via timer-interrupt from within |
| 3682 | * timer-dispatcher isdn_timer_function() |
| 3683 | */ |
| 3684 | void |
| 3685 | isdn_tty_modem_escape(void) |
| 3686 | { |
| 3687 | int ton = 0; |
| 3688 | int i; |
| 3689 | int midx; |
| 3690 | |
| 3691 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 3692 | if (USG_MODEM(dev->usage[i]) && (midx = dev->m_idx[i]) >= 0) { |
| 3693 | modem_info *info = &dev->mdm.info[midx]; |
| 3694 | if (info->online) { |
| 3695 | ton = 1; |
| 3696 | if ((info->emu.pluscount == 3) && |
| 3697 | time_after(jiffies, |
| 3698 | info->emu.lastplus + PLUSWAIT2)) { |
| 3699 | info->emu.pluscount = 0; |
| 3700 | info->online = 0; |
| 3701 | isdn_tty_modem_result(RESULT_OK, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3702 | } |
| 3703 | } |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 3704 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3705 | isdn_timer_ctrl(ISDN_TIMER_MODEMPLUS, ton); |
| 3706 | } |
| 3707 | |
| 3708 | /* |
| 3709 | * Put a RING-message to all modem-channels who have the RI-bit set. |
| 3710 | * This function is called every second via timer-interrupt from within |
| 3711 | * timer-dispatcher isdn_timer_function() |
| 3712 | */ |
| 3713 | void |
| 3714 | isdn_tty_modem_ring(void) |
| 3715 | { |
| 3716 | int ton = 0; |
| 3717 | int i; |
| 3718 | |
| 3719 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| 3720 | modem_info *info = &dev->mdm.info[i]; |
| 3721 | if (info->msr & UART_MSR_RI) { |
| 3722 | ton = 1; |
| 3723 | isdn_tty_modem_result(RESULT_RING, info); |
| 3724 | } |
| 3725 | } |
| 3726 | isdn_timer_ctrl(ISDN_TIMER_MODEMRING, ton); |
| 3727 | } |
| 3728 | |
| 3729 | /* |
| 3730 | * For all online tty's, try sending data to |
| 3731 | * the lower levels. |
| 3732 | */ |
| 3733 | void |
| 3734 | isdn_tty_modem_xmit(void) |
| 3735 | { |
| 3736 | int ton = 1; |
| 3737 | int i; |
| 3738 | |
| 3739 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| 3740 | modem_info *info = &dev->mdm.info[i]; |
| 3741 | if (info->online) { |
| 3742 | ton = 1; |
| 3743 | isdn_tty_senddown(info); |
| 3744 | isdn_tty_tint(info); |
| 3745 | } |
| 3746 | } |
| 3747 | isdn_timer_ctrl(ISDN_TIMER_MODEMXMIT, ton); |
| 3748 | } |
| 3749 | |
| 3750 | /* |
| 3751 | * Check all channels if we have a 'no carrier' timeout. |
| 3752 | * Timeout value is set by Register S7. |
| 3753 | */ |
| 3754 | void |
| 3755 | isdn_tty_carrier_timeout(void) |
| 3756 | { |
| 3757 | int ton = 0; |
| 3758 | int i; |
| 3759 | |
| 3760 | for (i = 0; i < ISDN_MAX_CHANNELS; i++) { |
| 3761 | modem_info *info = &dev->mdm.info[i]; |
Jiri Slaby | 37630f4 | 2012-04-02 13:53:52 +0200 | [diff] [blame] | 3762 | if (!info->dialing) |
| 3763 | continue; |
| 3764 | if (info->emu.carrierwait++ > info->emu.mdmreg[REG_WAITC]) { |
| 3765 | info->dialing = 0; |
| 3766 | isdn_tty_modem_result(RESULT_NO_CARRIER, info); |
| 3767 | isdn_tty_modem_hup(info, 1); |
| 3768 | } else |
| 3769 | ton = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3770 | } |
| 3771 | isdn_timer_ctrl(ISDN_TIMER_CARRIER, ton); |
| 3772 | } |