diff options
author | luigi <luigi@FreeBSD.org> | 2005-05-18 01:15:39 +0800 |
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committer | luigi <luigi@FreeBSD.org> | 2005-05-18 01:15:39 +0800 |
commit | 3cd709fac494ee56f779f1c82b912df546c1dbb8 (patch) | |
tree | c61583a9e2c920eca612d165c487aaafe3a6c13f /net/asterisk16 | |
parent | 3aef178719af09deb684e4b659237b5246687b8b (diff) | |
download | freebsd-ports-gnome-3cd709fac494ee56f779f1c82b912df546c1dbb8.tar.gz freebsd-ports-gnome-3cd709fac494ee56f779f1c82b912df546c1dbb8.tar.zst freebsd-ports-gnome-3cd709fac494ee56f779f1c82b912df546c1dbb8.zip |
fix a bug when no audio devices are available, remove some dead
code, cleanup comments.
This version is more or less in line with the one that i submitted
to the asterisk developers.
Diffstat (limited to 'net/asterisk16')
-rw-r--r-- | net/asterisk16/files/chan_oss.c | 229 |
1 files changed, 118 insertions, 111 deletions
diff --git a/net/asterisk16/files/chan_oss.c b/net/asterisk16/files/chan_oss.c index aef0db9dca85..95a92369882d 100644 --- a/net/asterisk16/files/chan_oss.c +++ b/net/asterisk16/files/chan_oss.c @@ -8,7 +8,7 @@ * This program is free software, distributed under the terms of * the GNU General Public License * - * FreeBSD changes and multiple device support by Luigi Rizzo, 2005.04.26 + * FreeBSD changes and multiple device support by Luigi Rizzo, 2005.05.02 * note-this code best seen with ts=8 (8-spaces tabs) in the editor */ @@ -44,6 +44,28 @@ #include "ring10.h" #include "answer.h" +/* + * Helper macros to parse config arguments. They will go in a common + * header file if their usage is globally accepted. In the meantime, + * we define them here. Typical usage is as below, WITHOUT ; on each line. + * + * { + * M_START(v->name, v->value) + * + * M_BOOL("dothis", x->flag1) + * M_STR("name", x->somestring) + * M_F("bar", some_c_code) + * M_END(some_final_statement) + */ +#define M_START(var, val) \ + char *__s = var; char *__val = val; +#define M_END(x) x; +#define M_F(tag, f) if (!strcasecmp((__s), tag)) { f; } else +#define M_BOOL(tag, dst) M_F(tag, (dst) = ast_true(__val) ) +#define M_UINT(tag, dst) M_F(tag, (dst) = strtoul(__val, NULL, 0) ) +#define M_STR(tag, dst) M_F(tag, strncpy(dst, __val, sizeof(dst) - 1) ) + + /* Which device to use */ #if defined( __OpenBSD__ ) || defined( __NetBSD__ ) #define DEV_DSP "/dev/audio" @@ -112,6 +134,7 @@ static char *desc = "OSS Console Channel Driver"; static char *tdesc = "OSS Console Channel Driver"; static char *config = "oss.conf"; /* default config file */ +static int oss_debug; /* * Each sound is made of 'datalen' samples of sound, repeated as needed to @@ -181,7 +204,8 @@ struct chan_oss_pvt { int silencesuppression; int silencethreshold; - char device[64]; /* device to open */ + int playbackonly; + char device[64]; /* device to open */ pthread_t sthread; @@ -271,7 +295,7 @@ static int soundcard_writeframe(struct chan_oss_pvt *o, short *data) */ res = used_blocks(o); if (res > o->queuesize) { /* no room to write a block */ - if (o->w_errors++ == 0 && 0) + if (o->w_errors++ == 0 && (oss_debug & 0x4)) ast_log(LOG_WARNING, "write: used %d blocks (%d)\n", res, o->w_errors); return 0; @@ -345,9 +369,7 @@ static void *sound_thread(void *arg) struct chan_oss_pvt *o = (struct chan_oss_pvt *)arg; /* kick the driver by trying to read from it. Ignore errors */ - if (read(o->sounddev, ign, sizeof(ign)) < 0) - ast_log(LOG_WARNING, "Read error on sound device: %s\n", - strerror(errno)); + read(o->sounddev, ign, sizeof(ign)); for(;;) { fd_set rfds, wfds; int maxfd, res; @@ -399,61 +421,6 @@ static void *sound_thread(void *arg) return NULL; } -#if 0 -static int calc_loudness(short *frame) -{ - int sum = 0; - int x; - for (x=0;x<FRAME_SIZE;x++) { - if (frame[x] < 0) - sum -= frame[x]; - else - sum += frame[x]; - } - sum = sum/FRAME_SIZE; - return sum; -} - -static int silence_suppress(short *buf) -{ -#define SILBUF 3 - int loudness; - static int silentframes = 0; - static char silbuf[FRAME_SIZE * 2 * SILBUF]; - static int silbufcnt=0; - if (!oss.silencesuppression) - return 0; - loudness = calc_loudness((short *)(buf)); - if (option_debug) - ast_log(LOG_DEBUG, "loudness is %d\n", loudness); - if (loudness < silencethreshold) { - silentframes++; - silbufcnt++; - /* Keep track of the last few bits of silence so we can play - them as lead-in when the time is right */ - if (silbufcnt >= SILBUF) { - /* Make way for more buffer */ - memmove(silbuf, silbuf + FRAME_SIZE * 2, FRAME_SIZE * 2 * (SILBUF - 1)); - silbufcnt--; - } - memcpy(silbuf + FRAME_SIZE * 2 * silbufcnt, buf, FRAME_SIZE * 2); - if (silentframes > 10) { - /* We've had plenty of silence, so compress it now */ - return 1; - } - } else { - silentframes=0; - /* Write any buffered silence we have, it may have something - important */ - if (silbufcnt) { - write(oss.sounddev, silbuf, silbufcnt * FRAME_SIZE); - silbufcnt = 0; - } - } - return 0; -} -#endif - /* * reset and close the device if opened, * then open and initialize it in the desired mode, @@ -518,12 +485,14 @@ static int setformat(struct chan_oss_pvt *o, int mode) } if (fmt != desired) { if (!(o->warned & WARN_speed)) { - ast_log(LOG_WARNING, "Requested %d Hz, got %d Hz -- sound may be choppy\n", desired, fmt); + ast_log(LOG_WARNING, + "Requested %d Hz, got %d Hz -- sound may be choppy\n", + desired, fmt); o->warned |= WARN_speed; } } /* - * on freebsd, SETFRAGMENT does not work very well on some cards. + * on Freebsd, SETFRAGMENT does not work very well on some cards. * Default to use 256 bytes, let the user override */ if (o->frags) { @@ -531,7 +500,8 @@ static int setformat(struct chan_oss_pvt *o, int mode) res = ioctl(fd, SNDCTL_DSP_SETFRAGMENT, &fmt); if (res < 0) { if (!(o->warned & WARN_frag)) { - ast_log(LOG_WARNING, "Unable to set fragment size -- sound may be choppy\n"); + ast_log(LOG_WARNING, + "Unable to set fragment size -- sound may be choppy\n"); o->warned |= WARN_frag; } } @@ -573,21 +543,29 @@ static int soundcard_setinput(struct chan_oss_pvt *o, int force) return 0; } +/* + * some of the standard methods supported by channels. + */ static int oss_digit(struct ast_channel *c, char digit) { + /* no better use for received digits than print them */ ast_verbose( " << Console Received digit %c >> \n", digit); return 0; } static int oss_text(struct ast_channel *c, char *text) { + /* print received messages */ ast_verbose( " << Console Received text %s >> \n", text); return 0; } -/* request to play a sound on the speaker XXX fix oss. */ +/* Play ringtone 'x' on device 'o' */ #define RING(o, x) { int what = x; write((o)->sndcmd[1], &what, sizeof(what)); } +/* + * handler for incoming calls. Either autoanswer, or start ringing + */ static int oss_call(struct ast_channel *c, char *dest, int timeout) { struct chan_oss_pvt *o = c->pvt->pvt; @@ -600,7 +578,7 @@ static int oss_call(struct ast_channel *c, char *dest, int timeout) f.subclass = AST_CONTROL_ANSWER; ast_queue_frame(c, &f); } else { - ast_verbose( " << Type 'answer' to answer, or use 'autoanswer' for future calls >> \n"); + ast_verbose(" << Type 'answer' to answer, or use 'autoanswer' for future calls >> \n"); f.frametype = AST_FRAME_CONTROL; f.subclass = AST_CONTROL_RINGING; ast_queue_frame(c, &f); @@ -609,17 +587,18 @@ static int oss_call(struct ast_channel *c, char *dest, int timeout) return 0; } -static void answer_sound(struct chan_oss_pvt *o) -{ - RING(o, AST_CONTROL_ANSWER); -} - +/* + * remote side answered the phone + */ static int oss_answer(struct ast_channel *c) { struct chan_oss_pvt *o = c->pvt->pvt; ast_verbose( " << Console call has been answered >> \n"); - answer_sound(o); /* XXX do we really need it ? considering we shut down immediately... */ +#if 0 + /* play an answer tone (XXX do we really need it ?) */ + RING(o, AST_CONTROL_ANSWER); +#endif ast_setstate(c, AST_STATE_UP); o->cursound = -1; o->nosound=0; @@ -661,7 +640,7 @@ static int oss_write(struct ast_channel *c, struct ast_frame *f) return 0; /* Stop any currently playing sound */ o->cursound = -1; - if (o->duplex != M_FULL) { + if (o->duplex != M_FULL && !o->playbackonly) { /* XXX check this, looks weird! */ /* If we're half duplex, we have to switch to read mode to honor immediate needs if necessary */ @@ -710,9 +689,6 @@ static int oss_write(struct ast_channel *c, struct ast_frame *f) static struct ast_frame *oss_read(struct ast_channel *c) { - /* XXX if we want multiple devices, should move these static vars - * into the device descriptor - */ int res; struct chan_oss_pvt *o = c->pvt->pvt; struct ast_frame *f = &o->read_f; @@ -812,12 +788,12 @@ static struct ast_channel *oss_new(struct chan_oss_pvt *o, pvt->indicate = oss_indicate; pvt->fixup = oss_fixup; - if (strlen(ctx)) - strncpy(c->context, ctx, sizeof(o->ctx)-1); - if (strlen(ext)) - strncpy(c->exten, ext, sizeof(o->ext)-1); - if (strlen(o->language)) - strncpy(c->language, o->language, sizeof(o->language)-1); +#define S_OVERRIDE(dst, src) \ + { if (src && src[0] != '\0') /* non-empty string */ \ + strncpy((dst), src, sizeof(dst)-1); } + S_OVERRIDE(c->context, ctx); + S_OVERRIDE(c->exten, ext); + S_OVERRIDE(c->language, o->language); o->owner = c; ast_setstate(c, state); ast_mutex_lock(&usecnt_lock); @@ -928,11 +904,14 @@ static char autoanswer_usage[] = " argument, displays the current on/off status of autoanswer.\n" " The default value of autoanswer is in 'oss.conf'.\n"; +/* + * answer command from the console + */ static int console_answer(int fd, int argc, char *argv[]) { + struct ast_frame f = { AST_FRAME_CONTROL, AST_CONTROL_ANSWER }; struct chan_oss_pvt *o = find_desc(oss_active); - struct ast_frame f = { AST_FRAME_CONTROL, AST_CONTROL_ANSWER }; if (argc != 1) return RESULT_SHOWUSAGE; if (!o->owner) { @@ -942,7 +921,7 @@ static int console_answer(int fd, int argc, char *argv[]) o->hookstate = 1; o->cursound = -1; ast_queue_frame(o->owner, &f); - answer_sound(o); + RING(o, AST_CONTROL_ANSWER); return RESULT_SUCCESS; } @@ -1007,6 +986,32 @@ static char hangup_usage[] = " Hangs up any call currently placed on the console.\n"; +static int console_flash(int fd, int argc, char *argv[]) +{ + struct ast_frame f = { AST_FRAME_CONTROL, AST_CONTROL_FLASH }; + struct chan_oss_pvt *o = find_desc(oss_active); + + if (argc != 1) + return RESULT_SHOWUSAGE; + o->cursound = -1; + if (!o->owner) { /* XXX maybe !o->hookstate too ? */ + ast_cli(fd, "No call to flash\n"); + return RESULT_FAILURE; + } + o->hookstate = 0; + if (o->owner) { /* XXX must be true, right ? */ + ast_queue_frame(o->owner, &f); + } + return RESULT_SUCCESS; +} + + +static char flash_usage[] = +"Usage: flash\n" +" Flashes the call currently placed on the console.\n"; + + + static int console_dial(int fd, int argc, char *argv[]) { char *tmp = NULL, *mye = NULL, *myc = NULL; @@ -1030,6 +1035,7 @@ static int console_dial(int fd, int argc, char *argv[]) return RESULT_SUCCESS; } /* if we have an argument split it into extension and context */ + if (argc == 2) { tmp = myc = strdup(argv[1]); /* make a writable copy */ mye = strsep(&myc, "@"); /* set exten, advance to context */ @@ -1055,19 +1061,17 @@ static char dial_usage[] = static int console_transfer(int fd, int argc, char *argv[]) { struct chan_oss_pvt *o = find_desc(oss_active); - struct ast_channel *b; - + struct ast_channel *b = NULL; char *ext, *ctx; if (argc != 2) return RESULT_SHOWUSAGE; if (o == NULL) return RESULT_FAILURE; - if (! (o->owner && o->owner->bridge)) { + if (o->owner == NULL || (b = o->owner->bridge) == NULL) { ast_cli(fd, "There is no call to transfer\n"); return RESULT_SUCCESS; } - b = o->owner->bridge; ext = ctx = strdup(argv[1]); /* make a writable copy */ strsep(&ctx, "@"); /* set exten, advance to context */ @@ -1116,6 +1120,7 @@ static int console_active(int fd, int argc, char *argv[]) static struct ast_cli_entry myclis[] = { { { "answer", NULL }, console_answer, "Answer an incoming console call", answer_usage }, { { "hangup", NULL }, console_hangup, "Hangup a call on the console", hangup_usage }, + { { "flash", NULL }, console_flash, "Flash a call on the console", flash_usage }, { { "dial", NULL }, console_dial, "Dial an extension on the console", dial_usage }, { { "transfer", NULL }, console_transfer, "Transfer a call to a different extension", transfer_usage }, { { "send", "text", NULL }, console_sendtext, "Send text to the remote device", sendtext_usage }, @@ -1177,28 +1182,22 @@ static struct chan_oss_pvt * store_config(struct ast_config *cfg, /* fill other fields from configuration */ v = ast_variable_browse(cfg, ctg); while(v) { - if (!strcasecmp(v->name, "autoanswer")) - o->autoanswer = ast_true(v->value); - else if (!strcasecmp(v->name, "autohangup")) - o->autohangup = ast_true(v->value); - else if (!strcasecmp(v->name, "silencesuppression")) - o->silencesuppression = ast_true(v->value); - else if (!strcasecmp(v->name, "silencethreshold")) - o->silencethreshold = atoi(v->value); - else if (!strcasecmp(v->name, "device")) - strncpy(o->device, v->value, sizeof(o->device)-1); - else if (!strcasecmp(v->name, "frags")) - o->frags = strtoul(v->value, NULL, 0); - else if (!strcasecmp(v->name, "queuesize")) - o->queuesize = strtoul(v->value, NULL, 0); - else if (!strcasecmp(v->name, "context")) - strncpy(o->ctx, v->value, sizeof(o->ctx)-1); - else if (!strcasecmp(v->name, "language")) - strncpy(o->language, v->value, sizeof(o->language)-1); - else if (!strcasecmp(v->name, "extension")) - strncpy(o->ext, v->value, sizeof(o->ext)-1); - else if (!strcasecmp(v->name, "mixer")) - store_mixer(o, v->value); + M_START(v->name, v->value); + + M_BOOL("autoanswer", o->autoanswer) + M_BOOL("autohangup", o->autohangup) + M_BOOL("playbackonly", o->playbackonly) + M_BOOL("silencesuppression", o->silencesuppression) + M_UINT("silencethreshold", o->silencethreshold ) + M_STR("device", o->device) + M_UINT("frags", o->frags) + M_UINT("debug", oss_debug) + M_UINT("queuesize", o->queuesize) + M_STR("context", o->ctx) + M_STR("language", o->language) + M_STR("extension", o->ext) + M_F("mixer", store_mixer(o, v->value)) + M_END(;); v=v->next; } if (!strlen(o->device)) @@ -1263,12 +1262,19 @@ int load_module() } ast_destroy(cfg); } + if (find_desc(oss_active) == NULL) { + ast_log(LOG_NOTICE, "Device %s not found\n", oss_active); + /* XXX we could default to 'dsp' perhaps ? */ + /* XXX should cleanup allocated memory etc. */ + return -1; + } i = ast_channel_register(oss_default.type, tdesc, AST_FORMAT_SLINEAR, oss_request); if (i < 0) { ast_log(LOG_ERROR, "Unable to register channel class '%s'\n", oss_default.type); - return NULL; + /* XXX should cleanup allocated memory etc. */ + return -1; } for (i=0; i<sizeof(myclis)/sizeof(struct ast_cli_entry); i++) ast_cli_register(myclis + i); @@ -1281,6 +1287,7 @@ int unload_module() int x; struct chan_oss_pvt *o; + /* XXX do we need a ast_channel_unregister oss_request ? */ for (x=0;x<sizeof(myclis)/sizeof(struct ast_cli_entry); x++) ast_cli_unregister(myclis + x); |