diff options
author | markster <markster@f38db490-d61c-443f-a65b-d21fe96a405b> | 2002-11-29 02:14:13 +0000 |
---|---|---|
committer | markster <markster@f38db490-d61c-443f-a65b-d21fe96a405b> | 2002-11-29 02:14:13 +0000 |
commit | 69399315991bf7f9679e2d9b22f42415653cfc04 (patch) | |
tree | e3349bbc37c69394a11f4358e9af9f7a5d2a2329 /channels/chan_modem_i4l.c | |
parent | 2d459a804c0512bbceafe63a934770c2aa3f5edd (diff) |
Version 0.3.0 from FTP
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@556 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'channels/chan_modem_i4l.c')
-rwxr-xr-x | channels/chan_modem_i4l.c | 87 |
1 files changed, 61 insertions, 26 deletions
diff --git a/channels/chan_modem_i4l.c b/channels/chan_modem_i4l.c index 553f144ee..18b5a5039 100755 --- a/channels/chan_modem_i4l.c +++ b/channels/chan_modem_i4l.c @@ -17,6 +17,7 @@ #include <stdlib.h> #include <errno.h> #include <unistd.h> +#include <sys/ioctl.h> #include <asterisk/lock.h> #include <asterisk/vmodem.h> #include <asterisk/module.h> @@ -151,11 +152,37 @@ static int i4l_init(struct ast_modem_pvt *p) return -1; } } + if (strlen(p->incomingmsn)) { + char *q; + snprintf(cmd, sizeof(cmd), "AT&L%s", p->incomingmsn); + // translate , into ; since that is the seperator I4L uses, but can't be directly + // put in the config file because it will interpret the rest of the line as comment. + q = cmd+4; + while (*q) { + if (*q == ',') *q = ';'; + ++q; + } + if (ast_modem_send(p, cmd, 0) || + ast_modem_expect(p, "OK", 5)) { + ast_log(LOG_WARNING, "Unable to set Listen to %s\n", p->msn); + return -1; + } + } + if (ast_modem_send(p, "AT&D2", 0) || + ast_modem_expect(p, "OK", 5)) { + ast_log(LOG_WARNING, "Unable to set to DTR disconnect mode\n"); + return -1; + } if (ast_modem_send(p, "ATS18=1", 0) || ast_modem_expect(p, "OK", 5)) { ast_log(LOG_WARNING, "Unable to set to audio only mode\n"); return -1; } + if (ast_modem_send(p, "ATS13.6=1", 0) || + ast_modem_expect(p, "OK", 5)) { + ast_log(LOG_WARNING, "Unable to set to RUNG indication\n"); + return -1; + } if (ast_modem_send(p, "ATS14=4", 0) || ast_modem_expect(p, "OK", 5)) { ast_log(LOG_WARNING, "Unable to set to transparent mode\n"); @@ -189,7 +216,7 @@ static struct ast_frame *i4l_handle_escape(struct ast_modem_pvt *p, char esc) p->fr.subclass = 0; p->fr.data = NULL; p->fr.datalen = 0; - p->fr.timelen = 0; + p->fr.samples = 0; p->fr.offset = 0; p->fr.mallocd = 0; if (esc && option_debug) @@ -271,7 +298,15 @@ static struct ast_frame *i4l_read(struct ast_modem_pvt *p) int x; if (p->ministate == STATE_COMMAND) { /* Read the first two bytes, first, in case it's a control message */ - read(p->fd, result, 2); + res = read(p->fd, result, 2); + if (res < 2) { + // short read, means there was a hangup? + // (or is this also possible without hangup?) + // Anyway, reading from unitialized buffers is a bad idea anytime. + if (errno == EAGAIN) + return i4l_handle_escape(p, 0); + return NULL; + } if (result[0] == CHAR_DLE) { return i4l_handle_escape(p, result[1]); @@ -283,7 +318,7 @@ static struct ast_frame *i4l_read(struct ast_modem_pvt *p) ast_modem_trim(result); if (!strcasecmp(result, "VCON")) { /* If we're in immediate mode, reply now */ - if (p->mode == MODEM_MODE_IMMEDIATE) +// if (p->mode == MODEM_MODE_IMMEDIATE) return i4l_handle_escape(p, 'X'); } else if (!strcasecmp(result, "BUSY")) { @@ -292,16 +327,22 @@ static struct ast_frame *i4l_read(struct ast_modem_pvt *p) } else if (!strncasecmp(result, "CALLER NUMBER: ", 15 )) { strncpy(p->cid, result + 15, sizeof(p->cid)-1); - return i4l_handle_escape(p, 'R'); + return i4l_handle_escape(p, 0); } else if (!strcasecmp(result, "RINGING")) { if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "%s is ringing...\n", p->dev); return i4l_handle_escape(p, 'I'); } else + if (!strncasecmp(result, "RUNG", 4)) { + /* PM2002: the line was hung up before we picked it up, bye bye */ + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "%s was hung up on before we answered\n", p->dev); + return NULL; + } else if (!strncasecmp(result, "RING", 4)) { if (result[4]=='/') - strncpy(p->dnid, result + 4, sizeof(p->dnid)-1); + strncpy(p->dnid, result + 5, sizeof(p->dnid)-1); return i4l_handle_escape(p, 'R'); } else if (!strcasecmp(result, "NO CARRIER")) { @@ -329,6 +370,7 @@ static struct ast_frame *i4l_read(struct ast_modem_pvt *p) if (errno == EAGAIN) return i4l_handle_escape(p, 0); ast_log(LOG_WARNING, "Read failed: %s\n", strerror(errno)); + return NULL; } for (x=0;x<res;x++) { @@ -372,7 +414,7 @@ static struct ast_frame *i4l_read(struct ast_modem_pvt *p) /* If we get here, we have a complete voice frame */ p->fr.frametype = AST_FRAME_VOICE; p->fr.subclass = AST_FORMAT_SLINEAR; - p->fr.timelen = 30; + p->fr.samples = 240; p->fr.data = p->obuf; p->fr.datalen = p->obuflen; p->fr.mallocd = 0; @@ -497,32 +539,24 @@ static int i4l_dial(struct ast_modem_pvt *p, char *stuff) static int i4l_hangup(struct ast_modem_pvt *p) { char dummy[50]; - sprintf(dummy, "%c%c", 0x10, 0x3); - if (write(p->fd, dummy, 2) < 0) { - ast_log(LOG_WARNING, "Failed to break\n"); - return -1; - } + int dtr = TIOCM_DTR; + + /* down DTR to hangup modem */ + ioctl(p->fd, TIOCMBIC, &dtr); /* Read anything outstanding */ while(read(p->fd, dummy, sizeof(dummy)) > 0); - sprintf(dummy, "%c%c", 0x10, 0x14); - if (write(p->fd, dummy, 2) < 0) { - ast_log(LOG_WARNING, "Failed to break\n"); - return -1; - } - ast_modem_expect(p, "VCON", 1); -#if 0 - if (ast_modem_expect(p, "VCON", 8)) { - ast_log(LOG_WARNING, "Didn't get expected VCON\n"); - return -1; - } -#endif + /* rise DTR to re-enable line */ + ioctl(p->fd, TIOCMBIS, &dtr); + + /* Read anything outstanding */ + while(read(p->fd, dummy, sizeof(dummy)) > 0); + + /* basically we're done, just to be sure */ write(p->fd, "\n\n", 2); read(p->fd, dummy, sizeof(dummy)); - /* Hangup by switching to data, then back to voice */ - if (ast_modem_send(p, "ATH", 0) || - ast_modem_expect(p, "NO CARRIER", 8)) { + if (ast_modem_send(p, "ATH", 0)) { ast_log(LOG_WARNING, "Unable to hang up\n"); return -1; } @@ -530,6 +564,7 @@ static int i4l_hangup(struct ast_modem_pvt *p) ast_log(LOG_WARNING, "Final 'OK' not received\n"); return -1; } + return 0; } |