![seanbright](/assets/img/avatar_default.png)
as RSW since i am too lazy to keep typing it all out). This time a few of the channels. git-svn-id: http://svn.digium.com/svn/asterisk/trunk@136888 f38db490-d61c-443f-a65b-d21fe96a405b
924 lines
24 KiB
C
924 lines
24 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* By Matthew Fredrickson <creslin@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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* \brief ALSA sound card channel driver
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*
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* \author Matthew Fredrickson <creslin@digium.com>
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*
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* \par See also
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* \arg Config_alsa
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*
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* \ingroup channel_drivers
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*/
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/*** MODULEINFO
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<depend>asound</depend>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#define ALSA_PCM_NEW_HW_PARAMS_API
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#define ALSA_PCM_NEW_SW_PARAMS_API
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#include <alsa/asoundlib.h>
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#include "asterisk/frame.h"
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#include "asterisk/channel.h"
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#include "asterisk/module.h"
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#include "asterisk/pbx.h"
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#include "asterisk/config.h"
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#include "asterisk/cli.h"
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#include "asterisk/utils.h"
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#include "asterisk/causes.h"
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#include "asterisk/endian.h"
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#include "asterisk/stringfields.h"
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#include "asterisk/abstract_jb.h"
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#include "asterisk/musiconhold.h"
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/*! Global jitterbuffer configuration - by default, jb is disabled */
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static struct ast_jb_conf default_jbconf = {
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.flags = 0,
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.max_size = -1,
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.resync_threshold = -1,
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.impl = ""
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};
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static struct ast_jb_conf global_jbconf;
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#define DEBUG 0
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/* Which device to use */
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#define ALSA_INDEV "default"
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#define ALSA_OUTDEV "default"
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#define DESIRED_RATE 8000
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/* Lets use 160 sample frames, just like GSM. */
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#define FRAME_SIZE 160
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#define PERIOD_FRAMES 80 /* 80 Frames, at 2 bytes each */
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/* When you set the frame size, you have to come up with
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the right buffer format as well. */
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/* 5 64-byte frames = one frame */
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#define BUFFER_FMT ((buffersize * 10) << 16) | (0x0006);
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/* Don't switch between read/write modes faster than every 300 ms */
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#define MIN_SWITCH_TIME 600
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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static snd_pcm_format_t format = SND_PCM_FORMAT_S16_LE;
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#else
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static snd_pcm_format_t format = SND_PCM_FORMAT_S16_BE;
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#endif
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static char indevname[50] = ALSA_INDEV;
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static char outdevname[50] = ALSA_OUTDEV;
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static int silencesuppression = 0;
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static int silencethreshold = 1000;
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AST_MUTEX_DEFINE_STATIC(alsalock);
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static const char tdesc[] = "ALSA Console Channel Driver";
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static const char config[] = "alsa.conf";
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static char context[AST_MAX_CONTEXT] = "default";
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static char language[MAX_LANGUAGE] = "";
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static char exten[AST_MAX_EXTENSION] = "s";
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static char mohinterpret[MAX_MUSICCLASS];
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static int hookstate = 0;
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static struct chan_alsa_pvt {
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/* We only have one ALSA structure -- near sighted perhaps, but it
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keeps this driver as simple as possible -- as it should be. */
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struct ast_channel *owner;
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char exten[AST_MAX_EXTENSION];
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char context[AST_MAX_CONTEXT];
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snd_pcm_t *icard, *ocard;
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} alsa;
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/* Number of buffers... Each is FRAMESIZE/8 ms long. For example
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with 160 sample frames, and a buffer size of 3, we have a 60ms buffer,
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usually plenty. */
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#define MAX_BUFFER_SIZE 100
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/* File descriptors for sound device */
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static int readdev = -1;
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static int writedev = -1;
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static int autoanswer = 1;
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static struct ast_channel *alsa_request(const char *type, int format, void *data, int *cause);
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static int alsa_digit(struct ast_channel *c, char digit, unsigned int duration);
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static int alsa_text(struct ast_channel *c, const char *text);
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static int alsa_hangup(struct ast_channel *c);
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static int alsa_answer(struct ast_channel *c);
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static struct ast_frame *alsa_read(struct ast_channel *chan);
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static int alsa_call(struct ast_channel *c, char *dest, int timeout);
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static int alsa_write(struct ast_channel *chan, struct ast_frame *f);
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static int alsa_indicate(struct ast_channel *chan, int cond, const void *data, size_t datalen);
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static int alsa_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
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static const struct ast_channel_tech alsa_tech = {
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.type = "Console",
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.description = tdesc,
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.capabilities = AST_FORMAT_SLINEAR,
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.requester = alsa_request,
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.send_digit_end = alsa_digit,
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.send_text = alsa_text,
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.hangup = alsa_hangup,
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.answer = alsa_answer,
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.read = alsa_read,
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.call = alsa_call,
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.write = alsa_write,
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.indicate = alsa_indicate,
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.fixup = alsa_fixup,
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};
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static snd_pcm_t *alsa_card_init(char *dev, snd_pcm_stream_t stream)
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{
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int err;
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int direction;
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snd_pcm_t *handle = NULL;
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snd_pcm_hw_params_t *hwparams = NULL;
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snd_pcm_sw_params_t *swparams = NULL;
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struct pollfd pfd;
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snd_pcm_uframes_t period_size = PERIOD_FRAMES * 4;
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snd_pcm_uframes_t buffer_size = 0;
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unsigned int rate = DESIRED_RATE;
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snd_pcm_uframes_t start_threshold, stop_threshold;
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err = snd_pcm_open(&handle, dev, stream, SND_PCM_NONBLOCK);
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if (err < 0) {
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ast_log(LOG_ERROR, "snd_pcm_open failed: %s\n", snd_strerror(err));
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return NULL;
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} else {
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ast_debug(1, "Opening device %s in %s mode\n", dev, (stream == SND_PCM_STREAM_CAPTURE) ? "read" : "write");
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}
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hwparams = alloca(snd_pcm_hw_params_sizeof());
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memset(hwparams, 0, snd_pcm_hw_params_sizeof());
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snd_pcm_hw_params_any(handle, hwparams);
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err = snd_pcm_hw_params_set_access(handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED);
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if (err < 0)
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ast_log(LOG_ERROR, "set_access failed: %s\n", snd_strerror(err));
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err = snd_pcm_hw_params_set_format(handle, hwparams, format);
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if (err < 0)
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ast_log(LOG_ERROR, "set_format failed: %s\n", snd_strerror(err));
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err = snd_pcm_hw_params_set_channels(handle, hwparams, 1);
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if (err < 0)
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ast_log(LOG_ERROR, "set_channels failed: %s\n", snd_strerror(err));
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direction = 0;
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err = snd_pcm_hw_params_set_rate_near(handle, hwparams, &rate, &direction);
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if (rate != DESIRED_RATE)
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ast_log(LOG_WARNING, "Rate not correct, requested %d, got %d\n", DESIRED_RATE, rate);
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direction = 0;
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err = snd_pcm_hw_params_set_period_size_near(handle, hwparams, &period_size, &direction);
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if (err < 0)
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ast_log(LOG_ERROR, "period_size(%ld frames) is bad: %s\n", period_size, snd_strerror(err));
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else {
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ast_debug(1, "Period size is %d\n", err);
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}
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buffer_size = 4096 * 2; /* period_size * 16; */
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err = snd_pcm_hw_params_set_buffer_size_near(handle, hwparams, &buffer_size);
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if (err < 0)
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ast_log(LOG_WARNING, "Problem setting buffer size of %ld: %s\n", buffer_size, snd_strerror(err));
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else {
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ast_debug(1, "Buffer size is set to %d frames\n", err);
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}
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err = snd_pcm_hw_params(handle, hwparams);
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if (err < 0)
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ast_log(LOG_ERROR, "Couldn't set the new hw params: %s\n", snd_strerror(err));
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swparams = alloca(snd_pcm_sw_params_sizeof());
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memset(swparams, 0, snd_pcm_sw_params_sizeof());
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snd_pcm_sw_params_current(handle, swparams);
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if (stream == SND_PCM_STREAM_PLAYBACK)
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start_threshold = period_size;
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else
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start_threshold = 1;
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err = snd_pcm_sw_params_set_start_threshold(handle, swparams, start_threshold);
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if (err < 0)
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ast_log(LOG_ERROR, "start threshold: %s\n", snd_strerror(err));
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if (stream == SND_PCM_STREAM_PLAYBACK)
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stop_threshold = buffer_size;
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else
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stop_threshold = buffer_size;
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err = snd_pcm_sw_params_set_stop_threshold(handle, swparams, stop_threshold);
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if (err < 0)
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ast_log(LOG_ERROR, "stop threshold: %s\n", snd_strerror(err));
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err = snd_pcm_sw_params(handle, swparams);
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if (err < 0)
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ast_log(LOG_ERROR, "sw_params: %s\n", snd_strerror(err));
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err = snd_pcm_poll_descriptors_count(handle);
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if (err <= 0)
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ast_log(LOG_ERROR, "Unable to get a poll descriptors count, error is %s\n", snd_strerror(err));
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if (err != 1) {
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ast_debug(1, "Can't handle more than one device\n");
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}
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snd_pcm_poll_descriptors(handle, &pfd, err);
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ast_debug(1, "Acquired fd %d from the poll descriptor\n", pfd.fd);
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if (stream == SND_PCM_STREAM_CAPTURE)
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readdev = pfd.fd;
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else
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writedev = pfd.fd;
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return handle;
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}
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static int soundcard_init(void)
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{
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alsa.icard = alsa_card_init(indevname, SND_PCM_STREAM_CAPTURE);
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alsa.ocard = alsa_card_init(outdevname, SND_PCM_STREAM_PLAYBACK);
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if (!alsa.icard || !alsa.ocard) {
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ast_log(LOG_ERROR, "Problem opening ALSA I/O devices\n");
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return -1;
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}
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return readdev;
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}
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static int alsa_digit(struct ast_channel *c, char digit, unsigned int duration)
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{
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ast_mutex_lock(&alsalock);
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ast_verbose(" << Console Received digit %c of duration %u ms >> \n",
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digit, duration);
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ast_mutex_unlock(&alsalock);
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return 0;
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}
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static int alsa_text(struct ast_channel *c, const char *text)
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{
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ast_mutex_lock(&alsalock);
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ast_verbose(" << Console Received text %s >> \n", text);
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ast_mutex_unlock(&alsalock);
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return 0;
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}
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static void grab_owner(void)
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{
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while (alsa.owner && ast_channel_trylock(alsa.owner)) {
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DEADLOCK_AVOIDANCE(&alsalock);
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}
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}
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static int alsa_call(struct ast_channel *c, char *dest, int timeout)
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{
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struct ast_frame f = { AST_FRAME_CONTROL };
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ast_mutex_lock(&alsalock);
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ast_verbose(" << Call placed to '%s' on console >> \n", dest);
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if (autoanswer) {
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ast_verbose(" << Auto-answered >> \n");
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grab_owner();
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if (alsa.owner) {
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f.subclass = AST_CONTROL_ANSWER;
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ast_queue_frame(alsa.owner, &f);
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ast_channel_unlock(alsa.owner);
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}
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} else {
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ast_verbose(" << Type 'answer' to answer, or use 'autoanswer' for future calls >> \n");
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grab_owner();
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if (alsa.owner) {
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f.subclass = AST_CONTROL_RINGING;
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ast_queue_frame(alsa.owner, &f);
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ast_channel_unlock(alsa.owner);
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ast_indicate(alsa.owner, AST_CONTROL_RINGING);
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}
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}
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snd_pcm_prepare(alsa.icard);
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snd_pcm_start(alsa.icard);
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ast_mutex_unlock(&alsalock);
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return 0;
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}
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static int alsa_answer(struct ast_channel *c)
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{
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ast_mutex_lock(&alsalock);
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ast_verbose(" << Console call has been answered >> \n");
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ast_setstate(c, AST_STATE_UP);
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snd_pcm_prepare(alsa.icard);
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snd_pcm_start(alsa.icard);
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ast_mutex_unlock(&alsalock);
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return 0;
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}
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static int alsa_hangup(struct ast_channel *c)
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{
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ast_mutex_lock(&alsalock);
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c->tech_pvt = NULL;
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alsa.owner = NULL;
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ast_verbose(" << Hangup on console >> \n");
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ast_module_unref(ast_module_info->self);
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hookstate = 0;
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snd_pcm_drop(alsa.icard);
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ast_mutex_unlock(&alsalock);
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return 0;
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}
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static int alsa_write(struct ast_channel *chan, struct ast_frame *f)
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{
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static char sizbuf[8000];
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static int sizpos = 0;
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int len = sizpos;
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int pos;
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int res = 0;
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/* size_t frames = 0; */
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snd_pcm_state_t state;
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ast_mutex_lock(&alsalock);
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/* We have to digest the frame in 160-byte portions */
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if (f->datalen > sizeof(sizbuf) - sizpos) {
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ast_log(LOG_WARNING, "Frame too large\n");
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res = -1;
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} else {
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memcpy(sizbuf + sizpos, f->data.ptr, f->datalen);
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len += f->datalen;
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pos = 0;
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state = snd_pcm_state(alsa.ocard);
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if (state == SND_PCM_STATE_XRUN)
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snd_pcm_prepare(alsa.ocard);
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res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2);
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if (res == -EPIPE) {
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#if DEBUG
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ast_debug(1, "XRUN write\n");
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#endif
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snd_pcm_prepare(alsa.ocard);
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res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2);
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if (res != len / 2) {
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ast_log(LOG_ERROR, "Write error: %s\n", snd_strerror(res));
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res = -1;
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} else if (res < 0) {
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ast_log(LOG_ERROR, "Write error %s\n", snd_strerror(res));
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res = -1;
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}
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} else {
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if (res == -ESTRPIPE)
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ast_log(LOG_ERROR, "You've got some big problems\n");
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else if (res < 0)
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ast_log(LOG_NOTICE, "Error %d on write\n", res);
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}
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}
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ast_mutex_unlock(&alsalock);
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return res >= 0 ? 0 : res;
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}
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static struct ast_frame *alsa_read(struct ast_channel *chan)
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{
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static struct ast_frame f;
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static short __buf[FRAME_SIZE + AST_FRIENDLY_OFFSET / 2];
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short *buf;
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static int readpos = 0;
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static int left = FRAME_SIZE;
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snd_pcm_state_t state;
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int r = 0;
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int off = 0;
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ast_mutex_lock(&alsalock);
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f.frametype = AST_FRAME_NULL;
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f.subclass = 0;
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f.samples = 0;
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f.datalen = 0;
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f.data.ptr = NULL;
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f.offset = 0;
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f.src = "Console";
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f.mallocd = 0;
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f.delivery.tv_sec = 0;
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f.delivery.tv_usec = 0;
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state = snd_pcm_state(alsa.icard);
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if ((state != SND_PCM_STATE_PREPARED) && (state != SND_PCM_STATE_RUNNING)) {
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snd_pcm_prepare(alsa.icard);
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}
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buf = __buf + AST_FRIENDLY_OFFSET / 2;
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r = snd_pcm_readi(alsa.icard, buf + readpos, left);
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if (r == -EPIPE) {
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#if DEBUG
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ast_log(LOG_ERROR, "XRUN read\n");
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#endif
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snd_pcm_prepare(alsa.icard);
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} else if (r == -ESTRPIPE) {
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ast_log(LOG_ERROR, "-ESTRPIPE\n");
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snd_pcm_prepare(alsa.icard);
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} else if (r < 0) {
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ast_log(LOG_ERROR, "Read error: %s\n", snd_strerror(r));
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} else if (r >= 0) {
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off -= r;
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}
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/* Update positions */
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readpos += r;
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left -= r;
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if (readpos >= FRAME_SIZE) {
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/* A real frame */
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readpos = 0;
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left = FRAME_SIZE;
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if (chan->_state != AST_STATE_UP) {
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/* Don't transmit unless it's up */
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ast_mutex_unlock(&alsalock);
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return &f;
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}
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f.frametype = AST_FRAME_VOICE;
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f.subclass = AST_FORMAT_SLINEAR;
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f.samples = FRAME_SIZE;
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f.datalen = FRAME_SIZE * 2;
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f.data.ptr = buf;
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f.offset = AST_FRIENDLY_OFFSET;
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f.src = "Console";
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f.mallocd = 0;
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}
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ast_mutex_unlock(&alsalock);
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return &f;
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}
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static int alsa_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
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{
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|
struct chan_alsa_pvt *p = newchan->tech_pvt;
|
|
|
|
ast_mutex_lock(&alsalock);
|
|
p->owner = newchan;
|
|
ast_mutex_unlock(&alsalock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alsa_indicate(struct ast_channel *chan, int cond, const void *data, size_t datalen)
|
|
{
|
|
int res = 0;
|
|
|
|
ast_mutex_lock(&alsalock);
|
|
|
|
switch (cond) {
|
|
case AST_CONTROL_BUSY:
|
|
case AST_CONTROL_CONGESTION:
|
|
case AST_CONTROL_RINGING:
|
|
case -1:
|
|
res = -1; /* Ask for inband indications */
|
|
break;
|
|
case AST_CONTROL_PROGRESS:
|
|
case AST_CONTROL_PROCEEDING:
|
|
case AST_CONTROL_VIDUPDATE:
|
|
case AST_CONTROL_SRCUPDATE:
|
|
break;
|
|
case AST_CONTROL_HOLD:
|
|
ast_verbose(" << Console Has Been Placed on Hold >> \n");
|
|
ast_moh_start(chan, data, mohinterpret);
|
|
break;
|
|
case AST_CONTROL_UNHOLD:
|
|
ast_verbose(" << Console Has Been Retrieved from Hold >> \n");
|
|
ast_moh_stop(chan);
|
|
break;
|
|
default:
|
|
ast_log(LOG_WARNING, "Don't know how to display condition %d on %s\n", cond, chan->name);
|
|
res = -1;
|
|
}
|
|
|
|
ast_mutex_unlock(&alsalock);
|
|
|
|
return res;
|
|
}
|
|
|
|
static struct ast_channel *alsa_new(struct chan_alsa_pvt *p, int state)
|
|
{
|
|
struct ast_channel *tmp = NULL;
|
|
|
|
if (!(tmp = ast_channel_alloc(1, state, 0, 0, "", p->exten, p->context, 0, "ALSA/%s", indevname)))
|
|
return NULL;
|
|
|
|
tmp->tech = &alsa_tech;
|
|
ast_channel_set_fd(tmp, 0, readdev);
|
|
tmp->nativeformats = AST_FORMAT_SLINEAR;
|
|
tmp->readformat = AST_FORMAT_SLINEAR;
|
|
tmp->writeformat = AST_FORMAT_SLINEAR;
|
|
tmp->tech_pvt = p;
|
|
if (!ast_strlen_zero(p->context))
|
|
ast_copy_string(tmp->context, p->context, sizeof(tmp->context));
|
|
if (!ast_strlen_zero(p->exten))
|
|
ast_copy_string(tmp->exten, p->exten, sizeof(tmp->exten));
|
|
if (!ast_strlen_zero(language))
|
|
ast_string_field_set(tmp, language, language);
|
|
p->owner = tmp;
|
|
ast_module_ref(ast_module_info->self);
|
|
ast_jb_configure(tmp, &global_jbconf);
|
|
if (state != AST_STATE_DOWN) {
|
|
if (ast_pbx_start(tmp)) {
|
|
ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
|
|
ast_hangup(tmp);
|
|
tmp = NULL;
|
|
}
|
|
}
|
|
|
|
return tmp;
|
|
}
|
|
|
|
static struct ast_channel *alsa_request(const char *type, int fmt, void *data, int *cause)
|
|
{
|
|
int oldformat = fmt;
|
|
struct ast_channel *tmp = NULL;
|
|
|
|
if (!(fmt &= AST_FORMAT_SLINEAR)) {
|
|
ast_log(LOG_NOTICE, "Asked to get a channel of format '%d'\n", oldformat);
|
|
return NULL;
|
|
}
|
|
|
|
ast_mutex_lock(&alsalock);
|
|
|
|
if (alsa.owner) {
|
|
ast_log(LOG_NOTICE, "Already have a call on the ALSA channel\n");
|
|
*cause = AST_CAUSE_BUSY;
|
|
} else if (!(tmp = alsa_new(&alsa, AST_STATE_DOWN))) {
|
|
ast_log(LOG_WARNING, "Unable to create new ALSA channel\n");
|
|
}
|
|
|
|
ast_mutex_unlock(&alsalock);
|
|
|
|
return tmp;
|
|
}
|
|
|
|
static char *autoanswer_complete(const char *line, const char *word, int pos, int state)
|
|
{
|
|
#ifndef MIN
|
|
#define MIN(a,b) ((a) < (b) ? (a) : (b))
|
|
#endif
|
|
switch (state) {
|
|
case 0:
|
|
if (!ast_strlen_zero(word) && !strncasecmp(word, "on", MIN(strlen(word), 2)))
|
|
return ast_strdup("on");
|
|
case 1:
|
|
if (!ast_strlen_zero(word) && !strncasecmp(word, "off", MIN(strlen(word), 3)))
|
|
return ast_strdup("off");
|
|
default:
|
|
return NULL;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static char *console_autoanswer(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
char *res = CLI_SUCCESS;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "console autoanswer";
|
|
e->usage =
|
|
"Usage: console autoanswer [on|off]\n"
|
|
" Enables or disables autoanswer feature. If used without\n"
|
|
" argument, displays the current on/off status of autoanswer.\n"
|
|
" The default value of autoanswer is in 'alsa.conf'.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return autoanswer_complete(a->line, a->word, a->pos, a->n);
|
|
}
|
|
|
|
if ((a->argc != 2) && (a->argc != 3))
|
|
return CLI_SHOWUSAGE;
|
|
|
|
ast_mutex_lock(&alsalock);
|
|
if (a->argc == 2) {
|
|
ast_cli(a->fd, "Auto answer is %s.\n", autoanswer ? "on" : "off");
|
|
} else {
|
|
if (!strcasecmp(a->argv[2], "on"))
|
|
autoanswer = -1;
|
|
else if (!strcasecmp(a->argv[2], "off"))
|
|
autoanswer = 0;
|
|
else
|
|
res = CLI_SHOWUSAGE;
|
|
}
|
|
ast_mutex_unlock(&alsalock);
|
|
|
|
return res;
|
|
}
|
|
|
|
static char *console_answer(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
char *res = CLI_SUCCESS;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "console answer";
|
|
e->usage =
|
|
"Usage: console answer\n"
|
|
" Answers an incoming call on the console (ALSA) channel.\n";
|
|
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
if (a->argc != 2)
|
|
return CLI_SHOWUSAGE;
|
|
|
|
ast_mutex_lock(&alsalock);
|
|
|
|
if (!alsa.owner) {
|
|
ast_cli(a->fd, "No one is calling us\n");
|
|
res = CLI_FAILURE;
|
|
} else {
|
|
hookstate = 1;
|
|
grab_owner();
|
|
if (alsa.owner) {
|
|
struct ast_frame f = { AST_FRAME_CONTROL, AST_CONTROL_ANSWER };
|
|
|
|
ast_queue_frame(alsa.owner, &f);
|
|
ast_channel_unlock(alsa.owner);
|
|
}
|
|
}
|
|
|
|
snd_pcm_prepare(alsa.icard);
|
|
snd_pcm_start(alsa.icard);
|
|
|
|
ast_mutex_unlock(&alsalock);
|
|
|
|
return res;
|
|
}
|
|
|
|
static char *console_sendtext(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
int tmparg = 3;
|
|
char *res = CLI_SUCCESS;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "console send text";
|
|
e->usage =
|
|
"Usage: console send text <message>\n"
|
|
" Sends a text message for display on the remote terminal.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
if (a->argc < 3)
|
|
return CLI_SHOWUSAGE;
|
|
|
|
ast_mutex_lock(&alsalock);
|
|
|
|
if (!alsa.owner) {
|
|
ast_cli(a->fd, "No channel active\n");
|
|
res = CLI_FAILURE;
|
|
} else {
|
|
struct ast_frame f = { AST_FRAME_TEXT, 0 };
|
|
char text2send[256] = "";
|
|
|
|
while (tmparg < a->argc) {
|
|
strncat(text2send, a->argv[tmparg++], sizeof(text2send) - strlen(text2send) - 1);
|
|
strncat(text2send, " ", sizeof(text2send) - strlen(text2send) - 1);
|
|
}
|
|
|
|
text2send[strlen(text2send) - 1] = '\n';
|
|
f.data.ptr = text2send;
|
|
f.datalen = strlen(text2send) + 1;
|
|
grab_owner();
|
|
if (alsa.owner) {
|
|
ast_queue_frame(alsa.owner, &f);
|
|
f.frametype = AST_FRAME_CONTROL;
|
|
f.subclass = AST_CONTROL_ANSWER;
|
|
f.data.ptr = NULL;
|
|
f.datalen = 0;
|
|
ast_queue_frame(alsa.owner, &f);
|
|
ast_channel_unlock(alsa.owner);
|
|
}
|
|
}
|
|
|
|
ast_mutex_unlock(&alsalock);
|
|
|
|
return res;
|
|
}
|
|
|
|
static char *console_hangup(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
char *res = CLI_SUCCESS;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "console hangup";
|
|
e->usage =
|
|
"Usage: console hangup\n"
|
|
" Hangs up any call currently placed on the console.\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
|
|
if (a->argc != 2)
|
|
return CLI_SHOWUSAGE;
|
|
|
|
ast_mutex_lock(&alsalock);
|
|
|
|
if (!alsa.owner && !hookstate) {
|
|
ast_cli(a->fd, "No call to hangup\n");
|
|
res = CLI_FAILURE;
|
|
} else {
|
|
hookstate = 0;
|
|
grab_owner();
|
|
if (alsa.owner) {
|
|
ast_queue_hangup_with_cause(alsa.owner, AST_CAUSE_NORMAL_CLEARING);
|
|
ast_channel_unlock(alsa.owner);
|
|
}
|
|
}
|
|
|
|
ast_mutex_unlock(&alsalock);
|
|
|
|
return res;
|
|
}
|
|
|
|
static char *console_dial(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
|
{
|
|
char tmp[256], *tmp2;
|
|
char *mye, *myc;
|
|
char *d;
|
|
char *res = CLI_SUCCESS;
|
|
|
|
switch (cmd) {
|
|
case CLI_INIT:
|
|
e->command = "console dial";
|
|
e->usage =
|
|
"Usage: console dial [extension[@context]]\n"
|
|
" Dials a given extension (and context if specified)\n";
|
|
return NULL;
|
|
case CLI_GENERATE:
|
|
return NULL;
|
|
}
|
|
|
|
if ((a->argc != 2) && (a->argc != 3))
|
|
return CLI_SHOWUSAGE;
|
|
|
|
ast_mutex_lock(&alsalock);
|
|
|
|
if (alsa.owner) {
|
|
if (a->argc == 3) {
|
|
if (alsa.owner) {
|
|
for (d = a->argv[2]; *d; d++) {
|
|
struct ast_frame f = { .frametype = AST_FRAME_DTMF, .subclass = *d };
|
|
|
|
ast_queue_frame(alsa.owner, &f);
|
|
}
|
|
}
|
|
} else {
|
|
ast_cli(a->fd, "You're already in a call. You can use this only to dial digits until you hangup\n");
|
|
res = CLI_FAILURE;
|
|
}
|
|
} else {
|
|
mye = exten;
|
|
myc = context;
|
|
if (a->argc == 3) {
|
|
char *stringp = NULL;
|
|
|
|
ast_copy_string(tmp, a->argv[2], sizeof(tmp));
|
|
stringp = tmp;
|
|
strsep(&stringp, "@");
|
|
tmp2 = strsep(&stringp, "@");
|
|
if (!ast_strlen_zero(tmp))
|
|
mye = tmp;
|
|
if (!ast_strlen_zero(tmp2))
|
|
myc = tmp2;
|
|
}
|
|
if (ast_exists_extension(NULL, myc, mye, 1, NULL)) {
|
|
ast_copy_string(alsa.exten, mye, sizeof(alsa.exten));
|
|
ast_copy_string(alsa.context, myc, sizeof(alsa.context));
|
|
hookstate = 1;
|
|
alsa_new(&alsa, AST_STATE_RINGING);
|
|
} else
|
|
ast_cli(a->fd, "No such extension '%s' in context '%s'\n", mye, myc);
|
|
}
|
|
|
|
ast_mutex_unlock(&alsalock);
|
|
|
|
return res;
|
|
}
|
|
|
|
static struct ast_cli_entry cli_alsa[] = {
|
|
AST_CLI_DEFINE(console_answer, "Answer an incoming console call"),
|
|
AST_CLI_DEFINE(console_hangup, "Hangup a call on the console"),
|
|
AST_CLI_DEFINE(console_dial, "Dial an extension on the console"),
|
|
AST_CLI_DEFINE(console_sendtext, "Send text to the remote device"),
|
|
AST_CLI_DEFINE(console_autoanswer, "Sets/displays autoanswer"),
|
|
};
|
|
|
|
static int load_module(void)
|
|
{
|
|
struct ast_config *cfg;
|
|
struct ast_variable *v;
|
|
struct ast_flags config_flags = { 0 };
|
|
|
|
/* Copy the default jb config over global_jbconf */
|
|
memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
|
|
|
|
strcpy(mohinterpret, "default");
|
|
|
|
if (!(cfg = ast_config_load(config, config_flags)))
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
|
|
v = ast_variable_browse(cfg, "general");
|
|
for (; v; v = v->next) {
|
|
/* handle jb conf */
|
|
if (!ast_jb_read_conf(&global_jbconf, v->name, v->value))
|
|
continue;
|
|
|
|
if (!strcasecmp(v->name, "autoanswer"))
|
|
autoanswer = ast_true(v->value);
|
|
else if (!strcasecmp(v->name, "silencesuppression"))
|
|
silencesuppression = ast_true(v->value);
|
|
else if (!strcasecmp(v->name, "silencethreshold"))
|
|
silencethreshold = atoi(v->value);
|
|
else if (!strcasecmp(v->name, "context"))
|
|
ast_copy_string(context, v->value, sizeof(context));
|
|
else if (!strcasecmp(v->name, "language"))
|
|
ast_copy_string(language, v->value, sizeof(language));
|
|
else if (!strcasecmp(v->name, "extension"))
|
|
ast_copy_string(exten, v->value, sizeof(exten));
|
|
else if (!strcasecmp(v->name, "input_device"))
|
|
ast_copy_string(indevname, v->value, sizeof(indevname));
|
|
else if (!strcasecmp(v->name, "output_device"))
|
|
ast_copy_string(outdevname, v->value, sizeof(outdevname));
|
|
else if (!strcasecmp(v->name, "mohinterpret"))
|
|
ast_copy_string(mohinterpret, v->value, sizeof(mohinterpret));
|
|
}
|
|
ast_config_destroy(cfg);
|
|
|
|
if (soundcard_init() < 0) {
|
|
ast_verb(2, "No sound card detected -- console channel will be unavailable\n");
|
|
ast_verb(2, "Turn off ALSA support by adding 'noload=chan_alsa.so' in /etc/asterisk/modules.conf\n");
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
if (ast_channel_register(&alsa_tech)) {
|
|
ast_log(LOG_ERROR, "Unable to register channel class 'Console'\n");
|
|
return AST_MODULE_LOAD_FAILURE;
|
|
}
|
|
|
|
ast_cli_register_multiple(cli_alsa, sizeof(cli_alsa) / sizeof(struct ast_cli_entry));
|
|
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
ast_channel_unregister(&alsa_tech);
|
|
ast_cli_unregister_multiple(cli_alsa, sizeof(cli_alsa) / sizeof(struct ast_cli_entry));
|
|
|
|
if (alsa.icard)
|
|
snd_pcm_close(alsa.icard);
|
|
if (alsa.ocard)
|
|
snd_pcm_close(alsa.ocard);
|
|
if (alsa.owner)
|
|
ast_softhangup(alsa.owner, AST_SOFTHANGUP_APPUNLOAD);
|
|
if (alsa.owner)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "ALSA Console Channel Driver");
|