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00040 #include "asterisk.h"
00041
00042 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 171189 $")
00043
00044 #include <ctype.h>
00045 #include <math.h>
00046 #include <sys/ioctl.h>
00047
00048 #ifdef __linux
00049 #include <linux/soundcard.h>
00050 #elif defined(__FreeBSD__) || defined(__CYGWIN__)
00051 #include <sys/soundcard.h>
00052 #else
00053 #include <soundcard.h>
00054 #endif
00055
00056 #include "asterisk/channel.h"
00057 #include "asterisk/file.h"
00058 #include "asterisk/callerid.h"
00059 #include "asterisk/module.h"
00060 #include "asterisk/pbx.h"
00061 #include "asterisk/cli.h"
00062 #include "asterisk/causes.h"
00063 #include "asterisk/musiconhold.h"
00064 #include "asterisk/app.h"
00065
00066 #include "console_video.h"
00067
00068
00069 static struct ast_jb_conf default_jbconf =
00070 {
00071 .flags = 0,
00072 .max_size = -1,
00073 .resync_threshold = -1,
00074 .impl = "",
00075 };
00076 static struct ast_jb_conf global_jbconf;
00077
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00205
00206 #define FRAME_SIZE 160
00207 #define QUEUE_SIZE 10
00208
00209 #if defined(__FreeBSD__)
00210 #define FRAGS 0x8
00211 #else
00212 #define FRAGS ( ( (6 * 5) << 16 ) | 0x6 )
00213 #endif
00214
00215
00216
00217
00218
00219 #define TEXT_SIZE 256
00220
00221 #if 0
00222 #define TRYOPEN 1
00223 #endif
00224 #define O_CLOSE 0x444
00225
00226 #if defined( __OpenBSD__ ) || defined( __NetBSD__ )
00227 #define DEV_DSP "/dev/audio"
00228 #else
00229 #define DEV_DSP "/dev/dsp"
00230 #endif
00231
00232 #ifndef MIN
00233 #define MIN(a,b) ((a) < (b) ? (a) : (b))
00234 #endif
00235 #ifndef MAX
00236 #define MAX(a,b) ((a) > (b) ? (a) : (b))
00237 #endif
00238
00239 static char *config = "oss.conf";
00240
00241 static int oss_debug;
00242
00243
00244
00245
00246
00247
00248
00249
00250
00251 struct chan_oss_pvt {
00252 struct chan_oss_pvt *next;
00253
00254 char *name;
00255 int total_blocks;
00256 int sounddev;
00257 enum { M_UNSET, M_FULL, M_READ, M_WRITE } duplex;
00258 int autoanswer;
00259 int autohangup;
00260 int hookstate;
00261 char *mixer_cmd;
00262 unsigned int queuesize;
00263 unsigned int frags;
00264
00265 int warned;
00266 #define WARN_used_blocks 1
00267 #define WARN_speed 2
00268 #define WARN_frag 4
00269 int w_errors;
00270 struct timeval lastopen;
00271
00272 int overridecontext;
00273 int mute;
00274
00275
00276
00277
00278 #define BOOST_SCALE (1<<9)
00279 #define BOOST_MAX 40
00280 int boost;
00281 char device[64];
00282
00283 pthread_t sthread;
00284
00285 struct ast_channel *owner;
00286
00287 struct video_desc *env;
00288
00289 char ext[AST_MAX_EXTENSION];
00290 char ctx[AST_MAX_CONTEXT];
00291 char language[MAX_LANGUAGE];
00292 char cid_name[256];
00293 char cid_num[256];
00294 char mohinterpret[MAX_MUSICCLASS];
00295
00296
00297 char oss_write_buf[FRAME_SIZE * 2];
00298 int oss_write_dst;
00299
00300
00301
00302 char oss_read_buf[FRAME_SIZE * 2 + AST_FRIENDLY_OFFSET];
00303 int readpos;
00304 struct ast_frame read_f;
00305 };
00306
00307
00308 static struct chan_oss_pvt *find_desc(char *dev);
00309
00310 static char *oss_active;
00311
00312
00313 struct video_desc *get_video_desc(struct ast_channel *c)
00314 {
00315 struct chan_oss_pvt *o = c ? c->tech_pvt : find_desc(oss_active);
00316 return o ? o->env : NULL;
00317 }
00318 static struct chan_oss_pvt oss_default = {
00319 .sounddev = -1,
00320 .duplex = M_UNSET,
00321 .autoanswer = 1,
00322 .autohangup = 1,
00323 .queuesize = QUEUE_SIZE,
00324 .frags = FRAGS,
00325 .ext = "s",
00326 .ctx = "default",
00327 .readpos = AST_FRIENDLY_OFFSET,
00328 .lastopen = { 0, 0 },
00329 .boost = BOOST_SCALE,
00330 };
00331
00332
00333 static int setformat(struct chan_oss_pvt *o, int mode);
00334
00335 static struct ast_channel *oss_request(const char *type, int format, void *data, int *cause);
00336 static int oss_digit_begin(struct ast_channel *c, char digit);
00337 static int oss_digit_end(struct ast_channel *c, char digit, unsigned int duration);
00338 static int oss_text(struct ast_channel *c, const char *text);
00339 static int oss_hangup(struct ast_channel *c);
00340 static int oss_answer(struct ast_channel *c);
00341 static struct ast_frame *oss_read(struct ast_channel *chan);
00342 static int oss_call(struct ast_channel *c, char *dest, int timeout);
00343 static int oss_write(struct ast_channel *chan, struct ast_frame *f);
00344 static int oss_indicate(struct ast_channel *chan, int cond, const void *data, size_t datalen);
00345 static int oss_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
00346 static char tdesc[] = "OSS Console Channel Driver";
00347
00348
00349 static struct ast_channel_tech oss_tech = {
00350 .type = "Console",
00351 .description = tdesc,
00352 .capabilities = AST_FORMAT_SLINEAR,
00353 .requester = oss_request,
00354 .send_digit_begin = oss_digit_begin,
00355 .send_digit_end = oss_digit_end,
00356 .send_text = oss_text,
00357 .hangup = oss_hangup,
00358 .answer = oss_answer,
00359 .read = oss_read,
00360 .call = oss_call,
00361 .write = oss_write,
00362 .write_video = console_write_video,
00363 .indicate = oss_indicate,
00364 .fixup = oss_fixup,
00365 };
00366
00367
00368
00369
00370 static struct chan_oss_pvt *find_desc(char *dev)
00371 {
00372 struct chan_oss_pvt *o = NULL;
00373
00374 if (!dev)
00375 ast_log(LOG_WARNING, "null dev\n");
00376
00377 for (o = oss_default.next; o && o->name && dev && strcmp(o->name, dev) != 0; o = o->next);
00378
00379 if (!o)
00380 ast_log(LOG_WARNING, "could not find <%s>\n", dev ? dev : "--no-device--");
00381
00382 return o;
00383 }
00384
00385
00386
00387
00388
00389
00390
00391
00392
00393
00394
00395
00396 static char *ast_ext_ctx(const char *src, char **ext, char **ctx)
00397 {
00398 struct chan_oss_pvt *o = find_desc(oss_active);
00399
00400 if (ext == NULL || ctx == NULL)
00401 return NULL;
00402
00403 *ext = *ctx = NULL;
00404
00405 if (src && *src != '\0')
00406 *ext = ast_strdup(src);
00407
00408 if (*ext == NULL)
00409 return NULL;
00410
00411 if (!o->overridecontext) {
00412
00413 *ctx = strrchr(*ext, '@');
00414 if (*ctx)
00415 *(*ctx)++ = '\0';
00416 }
00417
00418 return *ext;
00419 }
00420
00421
00422
00423
00424 static int used_blocks(struct chan_oss_pvt *o)
00425 {
00426 struct audio_buf_info info;
00427
00428 if (ioctl(o->sounddev, SNDCTL_DSP_GETOSPACE, &info)) {
00429 if (!(o->warned & WARN_used_blocks)) {
00430 ast_log(LOG_WARNING, "Error reading output space\n");
00431 o->warned |= WARN_used_blocks;
00432 }
00433 return 1;
00434 }
00435
00436 if (o->total_blocks == 0) {
00437 if (0)
00438 ast_log(LOG_WARNING, "fragtotal %d size %d avail %d\n", info.fragstotal, info.fragsize, info.fragments);
00439 o->total_blocks = info.fragments;
00440 }
00441
00442 return o->total_blocks - info.fragments;
00443 }
00444
00445
00446 static int soundcard_writeframe(struct chan_oss_pvt *o, short *data)
00447 {
00448 int res;
00449
00450 if (o->sounddev < 0)
00451 setformat(o, O_RDWR);
00452 if (o->sounddev < 0)
00453 return 0;
00454
00455
00456
00457
00458
00459
00460 res = used_blocks(o);
00461 if (res > o->queuesize) {
00462 if (o->w_errors++ == 0 && (oss_debug & 0x4))
00463 ast_log(LOG_WARNING, "write: used %d blocks (%d)\n", res, o->w_errors);
00464 return 0;
00465 }
00466 o->w_errors = 0;
00467 return write(o->sounddev, (void *)data, FRAME_SIZE * 2);
00468 }
00469
00470
00471
00472
00473
00474
00475 static int setformat(struct chan_oss_pvt *o, int mode)
00476 {
00477 int fmt, desired, res, fd;
00478
00479 if (o->sounddev >= 0) {
00480 ioctl(o->sounddev, SNDCTL_DSP_RESET, 0);
00481 close(o->sounddev);
00482 o->duplex = M_UNSET;
00483 o->sounddev = -1;
00484 }
00485 if (mode == O_CLOSE)
00486 return 0;
00487 if (ast_tvdiff_ms(ast_tvnow(), o->lastopen) < 1000)
00488 return -1;
00489 o->lastopen = ast_tvnow();
00490 fd = o->sounddev = open(o->device, mode | O_NONBLOCK);
00491 if (fd < 0) {
00492 ast_log(LOG_WARNING, "Unable to re-open DSP device %s: %s\n", o->device, strerror(errno));
00493 return -1;
00494 }
00495 if (o->owner)
00496 ast_channel_set_fd(o->owner, 0, fd);
00497
00498 #if __BYTE_ORDER == __LITTLE_ENDIAN
00499 fmt = AFMT_S16_LE;
00500 #else
00501 fmt = AFMT_S16_BE;
00502 #endif
00503 res = ioctl(fd, SNDCTL_DSP_SETFMT, &fmt);
00504 if (res < 0) {
00505 ast_log(LOG_WARNING, "Unable to set format to 16-bit signed\n");
00506 return -1;
00507 }
00508 switch (mode) {
00509 case O_RDWR:
00510 res = ioctl(fd, SNDCTL_DSP_SETDUPLEX, 0);
00511
00512 res = ioctl(fd, SNDCTL_DSP_GETCAPS, &fmt);
00513 if (res == 0 && (fmt & DSP_CAP_DUPLEX)) {
00514 ast_verb(2, "Console is full duplex\n");
00515 o->duplex = M_FULL;
00516 };
00517 break;
00518
00519 case O_WRONLY:
00520 o->duplex = M_WRITE;
00521 break;
00522
00523 case O_RDONLY:
00524 o->duplex = M_READ;
00525 break;
00526 }
00527
00528 fmt = 0;
00529 res = ioctl(fd, SNDCTL_DSP_STEREO, &fmt);
00530 if (res < 0) {
00531 ast_log(LOG_WARNING, "Failed to set audio device to mono\n");
00532 return -1;
00533 }
00534 fmt = desired = DEFAULT_SAMPLE_RATE;
00535 res = ioctl(fd, SNDCTL_DSP_SPEED, &fmt);
00536
00537 if (res < 0) {
00538 ast_log(LOG_WARNING, "Failed to set audio device to mono\n");
00539 return -1;
00540 }
00541 if (fmt != desired) {
00542 if (!(o->warned & WARN_speed)) {
00543 ast_log(LOG_WARNING,
00544 "Requested %d Hz, got %d Hz -- sound may be choppy\n",
00545 desired, fmt);
00546 o->warned |= WARN_speed;
00547 }
00548 }
00549
00550
00551
00552
00553 if (o->frags) {
00554 fmt = o->frags;
00555 res = ioctl(fd, SNDCTL_DSP_SETFRAGMENT, &fmt);
00556 if (res < 0) {
00557 if (!(o->warned & WARN_frag)) {
00558 ast_log(LOG_WARNING,
00559 "Unable to set fragment size -- sound may be choppy\n");
00560 o->warned |= WARN_frag;
00561 }
00562 }
00563 }
00564
00565 res = PCM_ENABLE_INPUT | PCM_ENABLE_OUTPUT;
00566 res = ioctl(fd, SNDCTL_DSP_SETTRIGGER, &res);
00567
00568 return 0;
00569 }
00570
00571
00572
00573
00574 static int oss_digit_begin(struct ast_channel *c, char digit)
00575 {
00576 return 0;
00577 }
00578
00579 static int oss_digit_end(struct ast_channel *c, char digit, unsigned int duration)
00580 {
00581
00582 ast_verbose(" << Console Received digit %c of duration %u ms >> \n",
00583 digit, duration);
00584 return 0;
00585 }
00586
00587 static int oss_text(struct ast_channel *c, const char *text)
00588 {
00589
00590 ast_verbose(" << Console Received text %s >> \n", text);
00591 return 0;
00592 }
00593
00594
00595
00596
00597 static int oss_call(struct ast_channel *c, char *dest, int timeout)
00598 {
00599 struct chan_oss_pvt *o = c->tech_pvt;
00600 struct ast_frame f = { 0, };
00601 AST_DECLARE_APP_ARGS(args,
00602 AST_APP_ARG(name);
00603 AST_APP_ARG(flags);
00604 );
00605 char *parse = ast_strdupa(dest);
00606
00607 AST_NONSTANDARD_APP_ARGS(args, parse, '/');
00608
00609 ast_verbose(" << Call to device '%s' dnid '%s' rdnis '%s' on console from '%s' <%s> >>\n", dest, c->cid.cid_dnid, c->cid.cid_rdnis, c->cid.cid_name, c->cid.cid_num);
00610 if (!ast_strlen_zero(args.flags) && strcasecmp(args.flags, "answer") == 0) {
00611 f.frametype = AST_FRAME_CONTROL;
00612 f.subclass = AST_CONTROL_ANSWER;
00613 ast_queue_frame(c, &f);
00614 } else if (!ast_strlen_zero(args.flags) && strcasecmp(args.flags, "noanswer") == 0) {
00615 f.frametype = AST_FRAME_CONTROL;
00616 f.subclass = AST_CONTROL_RINGING;
00617 ast_queue_frame(c, &f);
00618 ast_indicate(c, AST_CONTROL_RINGING);
00619 } else if (o->autoanswer) {
00620 ast_verbose(" << Auto-answered >> \n");
00621 f.frametype = AST_FRAME_CONTROL;
00622 f.subclass = AST_CONTROL_ANSWER;
00623 ast_queue_frame(c, &f);
00624 o->hookstate = 1;
00625 } else {
00626 ast_verbose("<< Type 'answer' to answer, or use 'autoanswer' for future calls >> \n");
00627 f.frametype = AST_FRAME_CONTROL;
00628 f.subclass = AST_CONTROL_RINGING;
00629 ast_queue_frame(c, &f);
00630 ast_indicate(c, AST_CONTROL_RINGING);
00631 }
00632 return 0;
00633 }
00634
00635
00636
00637
00638 static int oss_answer(struct ast_channel *c)
00639 {
00640 struct chan_oss_pvt *o = c->tech_pvt;
00641 ast_verbose(" << Console call has been answered >> \n");
00642 ast_setstate(c, AST_STATE_UP);
00643 o->hookstate = 1;
00644 return 0;
00645 }
00646
00647 static int oss_hangup(struct ast_channel *c)
00648 {
00649 struct chan_oss_pvt *o = c->tech_pvt;
00650
00651 c->tech_pvt = NULL;
00652 o->owner = NULL;
00653 ast_verbose(" << Hangup on console >> \n");
00654 console_video_uninit(o->env);
00655 ast_module_unref(ast_module_info->self);
00656 if (o->hookstate) {
00657 if (o->autoanswer || o->autohangup) {
00658
00659 o->hookstate = 0;
00660 setformat(o, O_CLOSE);
00661 }
00662 }
00663 return 0;
00664 }
00665
00666
00667 static int oss_write(struct ast_channel *c, struct ast_frame *f)
00668 {
00669 int src;
00670 struct chan_oss_pvt *o = c->tech_pvt;
00671
00672
00673
00674
00675
00676
00677
00678 src = 0;
00679 while (src < f->datalen) {
00680
00681 int l = sizeof(o->oss_write_buf) - o->oss_write_dst;
00682
00683 if (f->datalen - src >= l) {
00684 memcpy(o->oss_write_buf + o->oss_write_dst, f->data + src, l);
00685 soundcard_writeframe(o, (short *) o->oss_write_buf);
00686 src += l;
00687 o->oss_write_dst = 0;
00688 } else {
00689 l = f->datalen - src;
00690 memcpy(o->oss_write_buf + o->oss_write_dst, f->data + src, l);
00691 src += l;
00692 o->oss_write_dst += l;
00693 }
00694 }
00695 return 0;
00696 }
00697
00698 static struct ast_frame *oss_read(struct ast_channel *c)
00699 {
00700 int res;
00701 struct chan_oss_pvt *o = c->tech_pvt;
00702 struct ast_frame *f = &o->read_f;
00703
00704
00705
00706 memset(f, '\0', sizeof(struct ast_frame));
00707 f->frametype = AST_FRAME_NULL;
00708 f->src = oss_tech.type;
00709
00710 res = read(o->sounddev, o->oss_read_buf + o->readpos, sizeof(o->oss_read_buf) - o->readpos);
00711 if (res < 0)
00712 return f;
00713
00714 o->readpos += res;
00715 if (o->readpos < sizeof(o->oss_read_buf))
00716 return f;
00717
00718 if (o->mute)
00719 return f;
00720
00721 o->readpos = AST_FRIENDLY_OFFSET;
00722 if (c->_state != AST_STATE_UP)
00723 return f;
00724
00725 f->frametype = AST_FRAME_VOICE;
00726 f->subclass = AST_FORMAT_SLINEAR;
00727 f->samples = FRAME_SIZE;
00728 f->datalen = FRAME_SIZE * 2;
00729 f->data = o->oss_read_buf + AST_FRIENDLY_OFFSET;
00730 if (o->boost != BOOST_SCALE) {
00731 int i, x;
00732 int16_t *p = (int16_t *) f->data;
00733 for (i = 0; i < f->samples; i++) {
00734 x = (p[i] * o->boost) / BOOST_SCALE;
00735 if (x > 32767)
00736 x = 32767;
00737 else if (x < -32768)
00738 x = -32768;
00739 p[i] = x;
00740 }
00741 }
00742
00743 f->offset = AST_FRIENDLY_OFFSET;
00744 return f;
00745 }
00746
00747 static int oss_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
00748 {
00749 struct chan_oss_pvt *o = newchan->tech_pvt;
00750 o->owner = newchan;
00751 return 0;
00752 }
00753
00754 static int oss_indicate(struct ast_channel *c, int cond, const void *data, size_t datalen)
00755 {
00756 struct chan_oss_pvt *o = c->tech_pvt;
00757 int res = 0;
00758
00759 switch (cond) {
00760 case AST_CONTROL_BUSY:
00761 case AST_CONTROL_CONGESTION:
00762 case AST_CONTROL_RINGING:
00763 case -1:
00764 res = -1;
00765 break;
00766 case AST_CONTROL_PROGRESS:
00767 case AST_CONTROL_PROCEEDING:
00768 case AST_CONTROL_VIDUPDATE:
00769 case AST_CONTROL_SRCUPDATE:
00770 break;
00771 case AST_CONTROL_HOLD:
00772 ast_verbose(" << Console Has Been Placed on Hold >> \n");
00773 ast_moh_start(c, data, o->mohinterpret);
00774 break;
00775 case AST_CONTROL_UNHOLD:
00776 ast_verbose(" << Console Has Been Retrieved from Hold >> \n");
00777 ast_moh_stop(c);
00778 break;
00779 default:
00780 ast_log(LOG_WARNING, "Don't know how to display condition %d on %s\n", cond, c->name);
00781 return -1;
00782 }
00783
00784 return res;
00785 }
00786
00787
00788
00789
00790 static struct ast_channel *oss_new(struct chan_oss_pvt *o, char *ext, char *ctx, int state)
00791 {
00792 struct ast_channel *c;
00793
00794 c = ast_channel_alloc(1, state, o->cid_num, o->cid_name, "", ext, ctx, 0, "Console/%s", o->device + 5);
00795 if (c == NULL)
00796 return NULL;
00797 c->tech = &oss_tech;
00798 if (o->sounddev < 0)
00799 setformat(o, O_RDWR);
00800 ast_channel_set_fd(c, 0, o->sounddev);
00801 c->nativeformats = AST_FORMAT_SLINEAR;
00802
00803 if (state == AST_STATE_RINGING)
00804 c->nativeformats |= console_video_formats;
00805
00806 c->readformat = AST_FORMAT_SLINEAR;
00807 c->writeformat = AST_FORMAT_SLINEAR;
00808 c->tech_pvt = o;
00809
00810 if (!ast_strlen_zero(o->language))
00811 ast_string_field_set(c, language, o->language);
00812
00813
00814 c->cid.cid_ani = ast_strdup(o->cid_num);
00815 if (!ast_strlen_zero(ext))
00816 c->cid.cid_dnid = ast_strdup(ext);
00817
00818 o->owner = c;
00819 ast_module_ref(ast_module_info->self);
00820 ast_jb_configure(c, &global_jbconf);
00821 if (state != AST_STATE_DOWN) {
00822 if (ast_pbx_start(c)) {
00823 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", c->name);
00824 ast_hangup(c);
00825 o->owner = c = NULL;
00826 }
00827 }
00828 console_video_start(get_video_desc(c), c);
00829
00830 return c;
00831 }
00832
00833 static struct ast_channel *oss_request(const char *type, int format, void *data, int *cause)
00834 {
00835 struct ast_channel *c;
00836 struct chan_oss_pvt *o;
00837 AST_DECLARE_APP_ARGS(args,
00838 AST_APP_ARG(name);
00839 AST_APP_ARG(flags);
00840 );
00841 char *parse = ast_strdupa(data);
00842
00843 AST_NONSTANDARD_APP_ARGS(args, parse, '/');
00844 o = find_desc(args.name);
00845
00846 ast_log(LOG_WARNING, "oss_request ty <%s> data 0x%p <%s>\n", type, data, (char *) data);
00847 if (o == NULL) {
00848 ast_log(LOG_NOTICE, "Device %s not found\n", args.name);
00849
00850 return NULL;
00851 }
00852 if ((format & AST_FORMAT_SLINEAR) == 0) {
00853 ast_log(LOG_NOTICE, "Format 0x%x unsupported\n", format);
00854 return NULL;
00855 }
00856 if (o->owner) {
00857 ast_log(LOG_NOTICE, "Already have a call (chan %p) on the OSS channel\n", o->owner);
00858 *cause = AST_CAUSE_BUSY;
00859 return NULL;
00860 }
00861 c = oss_new(o, NULL, NULL, AST_STATE_DOWN);
00862 if (c == NULL) {
00863 ast_log(LOG_WARNING, "Unable to create new OSS channel\n");
00864 return NULL;
00865 }
00866 return c;
00867 }
00868
00869 static void store_config_core(struct chan_oss_pvt *o, const char *var, const char *value);
00870
00871
00872
00873
00874 static char *console_cmd(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
00875 {
00876 struct chan_oss_pvt *o = find_desc(oss_active);
00877 const char *var, *value;
00878 switch (cmd) {
00879 case CLI_INIT:
00880 e->command = CONSOLE_VIDEO_CMDS;
00881 e->usage = "Usage: " CONSOLE_VIDEO_CMDS "...\n"
00882 " Generic handler for console commands.\n";
00883 return NULL;
00884
00885 case CLI_GENERATE:
00886 return NULL;
00887 }
00888
00889 if (a->argc < e->args)
00890 return CLI_SHOWUSAGE;
00891 if (o == NULL) {
00892 ast_log(LOG_WARNING, "Cannot find device %s (should not happen!)\n",
00893 oss_active);
00894 return CLI_FAILURE;
00895 }
00896 var = a->argv[e->args-1];
00897 value = a->argc > e->args ? a->argv[e->args] : NULL;
00898 if (value)
00899 store_config_core(o, var, value);
00900 if (!console_video_cli(o->env, var, a->fd))
00901 return CLI_SUCCESS;
00902
00903 if (!strcasecmp(var, "device")) {
00904 ast_cli(a->fd, "device is [%s]\n", o->device);
00905 }
00906 return CLI_SUCCESS;
00907 }
00908
00909 static char *console_autoanswer(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
00910 {
00911 struct chan_oss_pvt *o = find_desc(oss_active);
00912
00913 switch (cmd) {
00914 case CLI_INIT:
00915 e->command = "console autoanswer [on|off]";
00916 e->usage =
00917 "Usage: console autoanswer [on|off]\n"
00918 " Enables or disables autoanswer feature. If used without\n"
00919 " argument, displays the current on/off status of autoanswer.\n"
00920 " The default value of autoanswer is in 'oss.conf'.\n";
00921 return NULL;
00922
00923 case CLI_GENERATE:
00924 return NULL;
00925 }
00926
00927 if (a->argc == e->args - 1) {
00928 ast_cli(a->fd, "Auto answer is %s.\n", o->autoanswer ? "on" : "off");
00929 return CLI_SUCCESS;
00930 }
00931 if (a->argc != e->args)
00932 return CLI_SHOWUSAGE;
00933 if (o == NULL) {
00934 ast_log(LOG_WARNING, "Cannot find device %s (should not happen!)\n",
00935 oss_active);
00936 return CLI_FAILURE;
00937 }
00938 if (!strcasecmp(a->argv[e->args-1], "on"))
00939 o->autoanswer = 1;
00940 else if (!strcasecmp(a->argv[e->args - 1], "off"))
00941 o->autoanswer = 0;
00942 else
00943 return CLI_SHOWUSAGE;
00944 return CLI_SUCCESS;
00945 }
00946
00947
00948 static char *console_do_answer(int fd)
00949 {
00950 struct ast_frame f = { AST_FRAME_CONTROL, AST_CONTROL_ANSWER };
00951 struct chan_oss_pvt *o = find_desc(oss_active);
00952 if (!o->owner) {
00953 if (fd > -1)
00954 ast_cli(fd, "No one is calling us\n");
00955 return CLI_FAILURE;
00956 }
00957 o->hookstate = 1;
00958 ast_queue_frame(o->owner, &f);
00959 return CLI_SUCCESS;
00960 }
00961
00962
00963
00964
00965 static char *console_answer(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
00966 {
00967 switch (cmd) {
00968 case CLI_INIT:
00969 e->command = "console answer";
00970 e->usage =
00971 "Usage: console answer\n"
00972 " Answers an incoming call on the console (OSS) channel.\n";
00973 return NULL;
00974
00975 case CLI_GENERATE:
00976 return NULL;
00977 }
00978 if (a->argc != e->args)
00979 return CLI_SHOWUSAGE;
00980 return console_do_answer(a->fd);
00981 }
00982
00983
00984
00985
00986
00987
00988
00989 static char *console_sendtext(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
00990 {
00991 struct chan_oss_pvt *o = find_desc(oss_active);
00992 char buf[TEXT_SIZE];
00993
00994 if (cmd == CLI_INIT) {
00995 e->command = "console send text";
00996 e->usage =
00997 "Usage: console send text <message>\n"
00998 " Sends a text message for display on the remote terminal.\n";
00999 return NULL;
01000 } else if (cmd == CLI_GENERATE)
01001 return NULL;
01002
01003 if (a->argc < e->args + 1)
01004 return CLI_SHOWUSAGE;
01005 if (!o->owner) {
01006 ast_cli(a->fd, "Not in a call\n");
01007 return CLI_FAILURE;
01008 }
01009 ast_join(buf, sizeof(buf) - 1, a->argv + e->args);
01010 if (!ast_strlen_zero(buf)) {
01011 struct ast_frame f = { 0, };
01012 int i = strlen(buf);
01013 buf[i] = '\n';
01014 f.frametype = AST_FRAME_TEXT;
01015 f.subclass = 0;
01016 f.data = buf;
01017 f.datalen = i + 1;
01018 ast_queue_frame(o->owner, &f);
01019 }
01020 return CLI_SUCCESS;
01021 }
01022
01023 static char *console_hangup(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01024 {
01025 struct chan_oss_pvt *o = find_desc(oss_active);
01026
01027 if (cmd == CLI_INIT) {
01028 e->command = "console hangup";
01029 e->usage =
01030 "Usage: console hangup\n"
01031 " Hangs up any call currently placed on the console.\n";
01032 return NULL;
01033 } else if (cmd == CLI_GENERATE)
01034 return NULL;
01035
01036 if (a->argc != e->args)
01037 return CLI_SHOWUSAGE;
01038 if (!o->owner && !o->hookstate) {
01039 ast_cli(a->fd, "No call to hang up\n");
01040 return CLI_FAILURE;
01041 }
01042 o->hookstate = 0;
01043 if (o->owner)
01044 ast_queue_hangup(o->owner);
01045 setformat(o, O_CLOSE);
01046 return CLI_SUCCESS;
01047 }
01048
01049 static char *console_flash(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01050 {
01051 struct ast_frame f = { AST_FRAME_CONTROL, AST_CONTROL_FLASH };
01052 struct chan_oss_pvt *o = find_desc(oss_active);
01053
01054 if (cmd == CLI_INIT) {
01055 e->command = "console flash";
01056 e->usage =
01057 "Usage: console flash\n"
01058 " Flashes the call currently placed on the console.\n";
01059 return NULL;
01060 } else if (cmd == CLI_GENERATE)
01061 return NULL;
01062
01063 if (a->argc != e->args)
01064 return CLI_SHOWUSAGE;
01065 if (!o->owner) {
01066 ast_cli(a->fd, "No call to flash\n");
01067 return CLI_FAILURE;
01068 }
01069 o->hookstate = 0;
01070 if (o->owner)
01071 ast_queue_frame(o->owner, &f);
01072 return CLI_SUCCESS;
01073 }
01074
01075 static char *console_dial(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01076 {
01077 char *s = NULL, *mye = NULL, *myc = NULL;
01078 struct chan_oss_pvt *o = find_desc(oss_active);
01079
01080 if (cmd == CLI_INIT) {
01081 e->command = "console dial";
01082 e->usage =
01083 "Usage: console dial [extension[@context]]\n"
01084 " Dials a given extension (and context if specified)\n";
01085 return NULL;
01086 } else if (cmd == CLI_GENERATE)
01087 return NULL;
01088
01089 if (a->argc > e->args + 1)
01090 return CLI_SHOWUSAGE;
01091 if (o->owner) {
01092 int i;
01093 struct ast_frame f = { AST_FRAME_DTMF, 0 };
01094
01095 if (a->argc == e->args) {
01096 ast_cli(a->fd, "Already in a call. You can only dial digits until you hangup.\n");
01097 return CLI_FAILURE;
01098 }
01099 s = a->argv[e->args];
01100
01101 for (i = 0; i < strlen(s); i++) {
01102 f.subclass = s[i];
01103 ast_queue_frame(o->owner, &f);
01104 }
01105 return CLI_SUCCESS;
01106 }
01107
01108 if (a->argc == e->args + 1)
01109 s = ast_ext_ctx(a->argv[e->args], &mye, &myc);
01110
01111 if (mye == NULL)
01112 mye = o->ext;
01113 if (myc == NULL)
01114 myc = o->ctx;
01115 if (ast_exists_extension(NULL, myc, mye, 1, NULL)) {
01116 o->hookstate = 1;
01117 oss_new(o, mye, myc, AST_STATE_RINGING);
01118 } else
01119 ast_cli(a->fd, "No such extension '%s' in context '%s'\n", mye, myc);
01120 if (s)
01121 ast_free(s);
01122 return CLI_SUCCESS;
01123 }
01124
01125 static char *console_mute(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01126 {
01127 struct chan_oss_pvt *o = find_desc(oss_active);
01128 char *s;
01129
01130 if (cmd == CLI_INIT) {
01131 e->command = "console {mute|unmute}";
01132 e->usage =
01133 "Usage: console {mute|unmute}\n"
01134 " Mute/unmute the microphone.\n";
01135 return NULL;
01136 } else if (cmd == CLI_GENERATE)
01137 return NULL;
01138
01139 if (a->argc != e->args)
01140 return CLI_SHOWUSAGE;
01141 s = a->argv[e->args-1];
01142 if (!strcasecmp(s, "mute"))
01143 o->mute = 1;
01144 else if (!strcasecmp(s, "unmute"))
01145 o->mute = 0;
01146 else
01147 return CLI_SHOWUSAGE;
01148 return CLI_SUCCESS;
01149 }
01150
01151 static char *console_transfer(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01152 {
01153 struct chan_oss_pvt *o = find_desc(oss_active);
01154 struct ast_channel *b = NULL;
01155 char *tmp, *ext, *ctx;
01156
01157 switch (cmd) {
01158 case CLI_INIT:
01159 e->command = "console transfer";
01160 e->usage =
01161 "Usage: console transfer <extension>[@context]\n"
01162 " Transfers the currently connected call to the given extension (and\n"
01163 " context if specified)\n";
01164 return NULL;
01165 case CLI_GENERATE:
01166 return NULL;
01167 }
01168
01169 if (a->argc != 3)
01170 return CLI_SHOWUSAGE;
01171 if (o == NULL)
01172 return CLI_FAILURE;
01173 if (o->owner == NULL || (b = ast_bridged_channel(o->owner)) == NULL) {
01174 ast_cli(a->fd, "There is no call to transfer\n");
01175 return CLI_SUCCESS;
01176 }
01177
01178 tmp = ast_ext_ctx(a->argv[2], &ext, &ctx);
01179 if (ctx == NULL)
01180 ctx = o->owner->context;
01181 if (!ast_exists_extension(b, ctx, ext, 1, b->cid.cid_num))
01182 ast_cli(a->fd, "No such extension exists\n");
01183 else {
01184 ast_cli(a->fd, "Whee, transferring %s to %s@%s.\n", b->name, ext, ctx);
01185 if (ast_async_goto(b, ctx, ext, 1))
01186 ast_cli(a->fd, "Failed to transfer :(\n");
01187 }
01188 if (tmp)
01189 ast_free(tmp);
01190 return CLI_SUCCESS;
01191 }
01192
01193 static char *console_active(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01194 {
01195 switch (cmd) {
01196 case CLI_INIT:
01197 e->command = "console active";
01198 e->usage =
01199 "Usage: console active [device]\n"
01200 " If used without a parameter, displays which device is the current\n"
01201 " console. If a device is specified, the console sound device is changed to\n"
01202 " the device specified.\n";
01203 return NULL;
01204 case CLI_GENERATE:
01205 return NULL;
01206 }
01207
01208 if (a->argc == 2)
01209 ast_cli(a->fd, "active console is [%s]\n", oss_active);
01210 else if (a->argc != 3)
01211 return CLI_SHOWUSAGE;
01212 else {
01213 struct chan_oss_pvt *o;
01214 if (strcmp(a->argv[2], "show") == 0) {
01215 for (o = oss_default.next; o; o = o->next)
01216 ast_cli(a->fd, "device [%s] exists\n", o->name);
01217 return CLI_SUCCESS;
01218 }
01219 o = find_desc(a->argv[2]);
01220 if (o == NULL)
01221 ast_cli(a->fd, "No device [%s] exists\n", a->argv[2]);
01222 else
01223 oss_active = o->name;
01224 }
01225 return CLI_SUCCESS;
01226 }
01227
01228
01229
01230
01231 static void store_boost(struct chan_oss_pvt *o, const char *s)
01232 {
01233 double boost = 0;
01234 if (sscanf(s, "%lf", &boost) != 1) {
01235 ast_log(LOG_WARNING, "invalid boost <%s>\n", s);
01236 return;
01237 }
01238 if (boost < -BOOST_MAX) {
01239 ast_log(LOG_WARNING, "boost %s too small, using %d\n", s, -BOOST_MAX);
01240 boost = -BOOST_MAX;
01241 } else if (boost > BOOST_MAX) {
01242 ast_log(LOG_WARNING, "boost %s too large, using %d\n", s, BOOST_MAX);
01243 boost = BOOST_MAX;
01244 }
01245 boost = exp(log(10) * boost / 20) * BOOST_SCALE;
01246 o->boost = boost;
01247 ast_log(LOG_WARNING, "setting boost %s to %d\n", s, o->boost);
01248 }
01249
01250 static char *console_boost(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01251 {
01252 struct chan_oss_pvt *o = find_desc(oss_active);
01253
01254 switch (cmd) {
01255 case CLI_INIT:
01256 e->command = "console boost";
01257 e->usage =
01258 "Usage: console boost [boost in dB]\n"
01259 " Sets or display mic boost in dB\n";
01260 return NULL;
01261 case CLI_GENERATE:
01262 return NULL;
01263 }
01264
01265 if (a->argc == 2)
01266 ast_cli(a->fd, "boost currently %5.1f\n", 20 * log10(((double) o->boost / (double) BOOST_SCALE)));
01267 else if (a->argc == 3)
01268 store_boost(o, a->argv[2]);
01269 return CLI_SUCCESS;
01270 }
01271
01272 static struct ast_cli_entry cli_oss[] = {
01273 AST_CLI_DEFINE(console_answer, "Answer an incoming console call"),
01274 AST_CLI_DEFINE(console_hangup, "Hangup a call on the console"),
01275 AST_CLI_DEFINE(console_flash, "Flash a call on the console"),
01276 AST_CLI_DEFINE(console_dial, "Dial an extension on the console"),
01277 AST_CLI_DEFINE(console_mute, "Disable/Enable mic input"),
01278 AST_CLI_DEFINE(console_transfer, "Transfer a call to a different extension"),
01279 AST_CLI_DEFINE(console_cmd, "Generic console command"),
01280 AST_CLI_DEFINE(console_sendtext, "Send text to the remote device"),
01281 AST_CLI_DEFINE(console_autoanswer, "Sets/displays autoanswer"),
01282 AST_CLI_DEFINE(console_boost, "Sets/displays mic boost in dB"),
01283 AST_CLI_DEFINE(console_active, "Sets/displays active console"),
01284 };
01285
01286
01287
01288
01289
01290
01291 static void store_mixer(struct chan_oss_pvt *o, const char *s)
01292 {
01293 int i;
01294
01295 for (i = 0; i < strlen(s); i++) {
01296 if (!isalnum(s[i]) && strchr(" \t-/", s[i]) == NULL) {
01297 ast_log(LOG_WARNING, "Suspect char %c in mixer cmd, ignoring:\n\t%s\n", s[i], s);
01298 return;
01299 }
01300 }
01301 if (o->mixer_cmd)
01302 ast_free(o->mixer_cmd);
01303 o->mixer_cmd = ast_strdup(s);
01304 ast_log(LOG_WARNING, "setting mixer %s\n", s);
01305 }
01306
01307
01308
01309
01310 static void store_callerid(struct chan_oss_pvt *o, const char *s)
01311 {
01312 ast_callerid_split(s, o->cid_name, sizeof(o->cid_name), o->cid_num, sizeof(o->cid_num));
01313 }
01314
01315 static void store_config_core(struct chan_oss_pvt *o, const char *var, const char *value)
01316 {
01317 CV_START(var, value);
01318
01319
01320 if (!ast_jb_read_conf(&global_jbconf, var, value))
01321 return;
01322
01323 if (!console_video_config(&o->env, var, value))
01324 return;
01325 CV_BOOL("autoanswer", o->autoanswer);
01326 CV_BOOL("autohangup", o->autohangup);
01327 CV_BOOL("overridecontext", o->overridecontext);
01328 CV_STR("device", o->device);
01329 CV_UINT("frags", o->frags);
01330 CV_UINT("debug", oss_debug);
01331 CV_UINT("queuesize", o->queuesize);
01332 CV_STR("context", o->ctx);
01333 CV_STR("language", o->language);
01334 CV_STR("mohinterpret", o->mohinterpret);
01335 CV_STR("extension", o->ext);
01336 CV_F("mixer", store_mixer(o, value));
01337 CV_F("callerid", store_callerid(o, value)) ;
01338 CV_F("boost", store_boost(o, value));
01339
01340 CV_END;
01341 }
01342
01343
01344
01345
01346 static struct chan_oss_pvt *store_config(struct ast_config *cfg, char *ctg)
01347 {
01348 struct ast_variable *v;
01349 struct chan_oss_pvt *o;
01350
01351 if (ctg == NULL) {
01352 o = &oss_default;
01353 ctg = "general";
01354 } else {
01355 if (!(o = ast_calloc(1, sizeof(*o))))
01356 return NULL;
01357 *o = oss_default;
01358
01359 if (strcmp(ctg, "general") == 0) {
01360 o->name = ast_strdup("dsp");
01361 oss_active = o->name;
01362 goto openit;
01363 }
01364 o->name = ast_strdup(ctg);
01365 }
01366
01367 strcpy(o->mohinterpret, "default");
01368
01369 o->lastopen = ast_tvnow();
01370
01371 for (v = ast_variable_browse(cfg, ctg); v; v = v->next) {
01372 store_config_core(o, v->name, v->value);
01373 }
01374 if (ast_strlen_zero(o->device))
01375 ast_copy_string(o->device, DEV_DSP, sizeof(o->device));
01376 if (o->mixer_cmd) {
01377 char *cmd;
01378
01379 if (asprintf(&cmd, "mixer %s", o->mixer_cmd) < 0) {
01380 ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno));
01381 } else {
01382 ast_log(LOG_WARNING, "running [%s]\n", cmd);
01383 if (system(cmd) < 0) {
01384 ast_log(LOG_WARNING, "system() failed: %s\n", strerror(errno));
01385 }
01386 ast_free(cmd);
01387 }
01388 }
01389 if (o == &oss_default)
01390 return NULL;
01391
01392 openit:
01393 #ifdef TRYOPEN
01394 if (setformat(o, O_RDWR) < 0) {
01395 ast_verb(1, "Device %s not detected\n", ctg);
01396 ast_verb(1, "Turn off OSS support by adding " "'noload=chan_oss.so' in /etc/asterisk/modules.conf\n");
01397 goto error;
01398 }
01399 if (o->duplex != M_FULL)
01400 ast_log(LOG_WARNING, "XXX I don't work right with non " "full-duplex sound cards XXX\n");
01401 #endif
01402
01403
01404 if (o != &oss_default) {
01405 o->next = oss_default.next;
01406 oss_default.next = o;
01407 }
01408 return o;
01409
01410 #ifdef TRYOPEN
01411 error:
01412 if (o != &oss_default)
01413 ast_free(o);
01414 return NULL;
01415 #endif
01416 }
01417
01418 static int load_module(void)
01419 {
01420 struct ast_config *cfg = NULL;
01421 char *ctg = NULL;
01422 struct ast_flags config_flags = { 0 };
01423
01424
01425 memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
01426
01427
01428 if (!(cfg = ast_config_load(config, config_flags))) {
01429 ast_log(LOG_NOTICE, "Unable to load config %s\n", config);
01430 return AST_MODULE_LOAD_DECLINE;
01431 }
01432
01433 do {
01434 store_config(cfg, ctg);
01435 } while ( (ctg = ast_category_browse(cfg, ctg)) != NULL);
01436
01437 ast_config_destroy(cfg);
01438
01439 if (find_desc(oss_active) == NULL) {
01440 ast_log(LOG_NOTICE, "Device %s not found\n", oss_active);
01441
01442
01443 return AST_MODULE_LOAD_FAILURE;
01444 }
01445
01446 oss_tech.capabilities |= console_video_formats;
01447
01448 if (ast_channel_register(&oss_tech)) {
01449 ast_log(LOG_ERROR, "Unable to register channel type 'OSS'\n");
01450 return AST_MODULE_LOAD_FAILURE;
01451 }
01452
01453 ast_cli_register_multiple(cli_oss, sizeof(cli_oss) / sizeof(struct ast_cli_entry));
01454
01455 return AST_MODULE_LOAD_SUCCESS;
01456 }
01457
01458
01459 static int unload_module(void)
01460 {
01461 struct chan_oss_pvt *o, *next;
01462
01463 ast_channel_unregister(&oss_tech);
01464 ast_cli_unregister_multiple(cli_oss, sizeof(cli_oss) / sizeof(struct ast_cli_entry));
01465
01466 o = oss_default.next;
01467 while (o) {
01468 close(o->sounddev);
01469 if (o->owner)
01470 ast_softhangup(o->owner, AST_SOFTHANGUP_APPUNLOAD);
01471 if (o->owner)
01472 return -1;
01473 next = o->next;
01474 ast_free(o->name);
01475 ast_free(o);
01476 o = next;
01477 }
01478 return 0;
01479 }
01480
01481 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "OSS Console Channel Driver");