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freetdm: improved logic to enable/disable EC on call start/stop 

- MFC-R2 requires tone signaling that gets screwed sometimes
           if the EC is enabled during call setup.
         - EC is now enabled only when switching to a state requiring
         media (UP and PROGRESS_MEDIA)
         - The logic is aware of EC persist option in Wanpipe
         - Improved logging in ftmod_wanpipe to print EC state on startup
This commit is contained in:
Moises Silva 2011-01-18 11:28:37 -05:00
parent 99cab144b5
commit 1db40e60e4
6 changed files with 70 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

69
libs/freetdm/src/ftdm_io.c
View File

@ -404,39 +404,39 @@ static __inline__ void ftdm_std_free(void *pool, void *ptr)
free(ptr);
}
static void ftdm_set_echocancel_call_begin(ftdm_channel_t *chan)
FT_DECLARE(void) ftdm_set_echocancel_call_begin(ftdm_channel_t *chan)
{
ftdm_caller_data_t *caller_data = ftdm_channel_get_caller_data(chan);
if (ftdm_channel_test_feature(chan, FTDM_CHANNEL_FEATURE_HWEC)) {
if (ftdm_channel_test_feature(chan, FTDM_CHANNEL_FEATURE_HWEC_DISABLED_ON_IDLE)) {
/* If the ec is disabled on idle, we need to enable it unless is a digital call */
if (caller_data->bearer_capability != FTDM_BEARER_CAP_64K_UNRESTRICTED) {
ftdm_log_chan(chan, FTDM_LOG_DEBUG, "Enabling ec for call in channel state %s\n", ftdm_channel_state2str(chan->state));
ftdm_channel_command(chan, FTDM_COMMAND_ENABLE_ECHOCANCEL, NULL);
}
} else {
/* If the ec is enabled on idle, we do nothing unless is a digital call that needs it disabled */
if (caller_data->bearer_capability == FTDM_BEARER_CAP_64K_UNRESTRICTED) {
ftdm_log_chan(chan, FTDM_LOG_DEBUG, "Disabling ec for digital call in channel state %s\n", ftdm_channel_state2str(chan->state));
ftdm_channel_command(chan, FTDM_COMMAND_DISABLE_ECHOCANCEL, NULL);
}
}
}
}
static void ftdm_set_echocancel_call_end(ftdm_channel_t *chan)
FT_DECLARE(void) ftdm_set_echocancel_call_end(ftdm_channel_t *chan)
{
ftdm_caller_data_t *caller_data = ftdm_channel_get_caller_data(chan);
if (ftdm_channel_test_feature(chan, FTDM_CHANNEL_FEATURE_HWEC)) {
if (ftdm_channel_test_feature(chan, FTDM_CHANNEL_FEATURE_HWEC_DISABLED_ON_IDLE)) {
if (caller_data->bearer_capability != FTDM_BEARER_CAP_64K_UNRESTRICTED) {
ftdm_channel_command(chan, FTDM_COMMAND_DISABLE_ECHOCANCEL, NULL);
}
ftdm_log_chan(chan, FTDM_LOG_DEBUG, "Disabling ec on call end in channel state %s\n", ftdm_channel_state2str(chan->state));
ftdm_channel_command(chan, FTDM_COMMAND_DISABLE_ECHOCANCEL, NULL);
} else {
if (caller_data->bearer_capability == FTDM_BEARER_CAP_64K_UNRESTRICTED) {
ftdm_channel_command(chan, FTDM_COMMAND_ENABLE_ECHOCANCEL, NULL);
}
ftdm_log_chan(chan, FTDM_LOG_DEBUG, "Enabling ec back on call end in channel state %s\n", ftdm_channel_state2str(chan->state));
ftdm_channel_command(chan, FTDM_COMMAND_ENABLE_ECHOCANCEL, NULL);
}
}
}
FT_DECLARE_DATA ftdm_memory_handler_t g_ftdm_mem_handler =
{
/*.pool =*/ NULL,
@ -5548,25 +5548,44 @@ FT_DECLARE(ftdm_status_t) ftdm_span_send_signal(ftdm_span_t *span, ftdm_sigmsg_t
case FTDM_SIGEVENT_PROGRESS_MEDIA:
{
ftdm_log_chan_msg(sigmsg->channel, FTDM_LOG_DEBUG, "Enabling echo cancellation on progress media\n");
ftdm_set_echocancel_call_begin(sigmsg->channel);
/* test signaling module compliance */
if (sigmsg->channel->state != FTDM_CHANNEL_STATE_PROGRESS_MEDIA) {
ftdm_log_chan(sigmsg->channel, FTDM_LOG_WARNING, "FTDM_SIGEVENT_PROGRESS_MEDIA sent in state %s\n", ftdm_channel_state2str(sigmsg->channel->state));
}
}
break;
case FTDM_SIGEVENT_UP:
{
/* test signaling module compliance */
if (sigmsg->channel->state != FTDM_CHANNEL_STATE_UP) {
ftdm_log_chan(sigmsg->channel, FTDM_LOG_WARNING, "FTDM_SIGEVENT_UP sent in state %s\n", ftdm_channel_state2str(sigmsg->channel->state));
}
}
break;
case FTDM_SIGEVENT_STOP:
if (!ftdm_test_flag(sigmsg->channel, FTDM_CHANNEL_CALL_STARTED)) {
/* this happens for FXS devices which blindly send SIGEVENT_STOP, we should fix it there ... */
ftdm_log_chan_msg(sigmsg->channel, FTDM_LOG_DEBUG, "Ignoring SIGEVENT_STOP since user never knew about a call in this channel\n");
goto done;
}
if (ftdm_test_flag(sigmsg->channel, FTDM_CHANNEL_USER_HANGUP)) {
ftdm_log_chan_msg(sigmsg->channel, FTDM_LOG_DEBUG, "Ignoring SIGEVENT_STOP since user already requested hangup\n");
goto done;
}
if (sigmsg->channel->state == FTDM_CHANNEL_STATE_TERMINATING) {
ftdm_log_chan_msg(sigmsg->channel, FTDM_LOG_DEBUG, "Scheduling safety hangup timer\n");
/* if the user does not move us to hangup in 2 seconds, we will do it ourselves */
ftdm_sched_timer(globals.timingsched, "safety-hangup", FORCE_HANGUP_TIMER, execute_safety_hangup, sigmsg->channel, &sigmsg->channel->hangup_timer);
{
/* TODO: we could test for compliance here and check the state is FTDM_CHANNEL_STATE_TERMINATING
* but several modules need to be updated first */
/* if the call was never started, do not send SIGEVENT_STOP
this happens for FXS devices in ftmod_analog which blindly send SIGEVENT_STOP, we should fix it there ... */
if (!ftdm_test_flag(sigmsg->channel, FTDM_CHANNEL_CALL_STARTED)) {
ftdm_log_chan_msg(sigmsg->channel, FTDM_LOG_DEBUG, "Ignoring SIGEVENT_STOP since user never knew about a call in this channel\n");
goto done;
}
if (ftdm_test_flag(sigmsg->channel, FTDM_CHANNEL_USER_HANGUP)) {
ftdm_log_chan_msg(sigmsg->channel, FTDM_LOG_DEBUG, "Ignoring SIGEVENT_STOP since user already requested hangup\n");
goto done;
}
if (sigmsg->channel->state == FTDM_CHANNEL_STATE_TERMINATING) {
ftdm_log_chan_msg(sigmsg->channel, FTDM_LOG_DEBUG, "Scheduling safety hangup timer\n");
/* if the user does not move us to hangup in 2 seconds, we will do it ourselves */
ftdm_sched_timer(globals.timingsched, "safety-hangup", FORCE_HANGUP_TIMER, execute_safety_hangup, sigmsg->channel, &sigmsg->channel->hangup_timer);
}
}
break;

10
libs/freetdm/src/ftdm_state.c
View File

@ -70,13 +70,13 @@ FT_DECLARE(ftdm_status_t) _ftdm_channel_complete_state(const char *file, const c
if (state == FTDM_CHANNEL_STATE_PROGRESS) {
ftdm_set_flag(fchan, FTDM_CHANNEL_PROGRESS);
} else if (state == FTDM_CHANNEL_STATE_UP) {
ftdm_set_flag(fchan, FTDM_CHANNEL_PROGRESS);
ftdm_set_flag(fchan, FTDM_CHANNEL_MEDIA);
ftdm_set_flag(fchan, FTDM_CHANNEL_ANSWERED);
} else if (state == FTDM_CHANNEL_STATE_PROGRESS_MEDIA) {
ftdm_set_flag(fchan, FTDM_CHANNEL_PROGRESS);
ftdm_set_flag(fchan, FTDM_CHANNEL_MEDIA);
ftdm_test_and_set_media(fchan);
} else if (state == FTDM_CHANNEL_STATE_UP) {
ftdm_set_flag(fchan, FTDM_CHANNEL_PROGRESS);
ftdm_set_flag(fchan, FTDM_CHANNEL_ANSWERED);
ftdm_test_and_set_media(fchan);
} else if (state == FTDM_CHANNEL_STATE_DIALING) {
ftdm_sigmsg_t msg;
memset(&msg, 0, sizeof(msg));

3
libs/freetdm/src/ftmod/ftmod_r2/ftmod_r2.c
View File

@ -647,9 +647,6 @@ static void ftdm_r2_on_call_init(openr2_chan_t *r2chan)
return;
}
/* mark the channel in use (so no outgoing calls can be placed here) */
ftdm_channel_use(ftdmchan);
memset(ftdmchan->caller_data.dnis.digits, 0, sizeof(ftdmchan->caller_data.collected));
memset(ftdmchan->caller_data.ani.digits, 0, sizeof(ftdmchan->caller_data.collected));

9
libs/freetdm/src/ftmod/ftmod_wanpipe/ftmod_wanpipe.c
View File

@ -230,6 +230,8 @@ static unsigned wp_open_range(ftdm_span_t *span, unsigned spanno, unsigned start
ftdm_channel_t *chan;
ftdm_socket_t sockfd = FTDM_INVALID_SOCKET;
const char *dtmf = "none";
const char *hwec_str = "none";
const char *hwec_idle = "none";
if (!strncasecmp(span->name, "smg_prid_nfas", 8) && span->trunk_type == FTDM_TRUNK_T1 && x == 24) {
#ifdef LIBSANGOMA_VERSION
sockfd = __tdmv_api_open_span_chan(spanno, x);
@ -271,6 +273,8 @@ static unsigned wp_open_range(ftdm_span_t *span, unsigned spanno, unsigned start
|| type == FTDM_CHAN_TYPE_B) {
int err;
hwec_str = "unavailable";
hwec_idle = "enabled";
dtmf = "software";
err = sangoma_tdm_get_hw_coding(chan->sockfd, &tdm_api);
@ -289,6 +293,7 @@ static unsigned wp_open_range(ftdm_span_t *span, unsigned spanno, unsigned start
err = sangoma_tdm_get_hw_ec(chan->sockfd, &tdm_api);
if (err > 0) {
hwec_str = "available";
ftdm_channel_set_feature(chan, FTDM_CHANNEL_FEATURE_HWEC);
}
@ -296,6 +301,7 @@ static unsigned wp_open_range(ftdm_span_t *span, unsigned spanno, unsigned start
err = sangoma_tdm_get_hwec_persist_status(chan->sockfd, &tdm_api);
if (err == 0) {
ftdm_channel_set_feature(chan, FTDM_CHANNEL_FEATURE_HWEC_DISABLED_ON_IDLE);
hwec_idle = "disabled";
}
#else
if (span->trunk_type == FTDM_TRUNK_BRI || span->trunk_type == FTDM_TRUNK_BRI_PTMP) {
@ -365,7 +371,8 @@ static unsigned wp_open_range(ftdm_span_t *span, unsigned spanno, unsigned start
ftdm_copy_string(chan->chan_number, number, sizeof(chan->chan_number));
}
configured++;
ftdm_log_chan(chan, FTDM_LOG_INFO, "Configured wanpipe device fd:%d DTMF: %s\n", sockfd, dtmf);
ftdm_log_chan(chan, FTDM_LOG_INFO, "Configured wanpipe device FD: %d, DTMF: %s, HWEC: %s, HWEC_IDLE: %s\n",
sockfd, dtmf, hwec_str, hwec_idle);
} else {
ftdm_log(FTDM_LOG_ERROR, "ftdm_span_add_channel failed for wanpipe span %d channel %d\n", spanno, x);

11
libs/freetdm/src/include/private/ftdm_core.h
View File

@ -622,6 +622,9 @@ FT_DECLARE(ftdm_status_t) ftdm_span_trigger_signals(const ftdm_span_t *span);
/*! \brief clear the tone detector state */
FT_DECLARE(void) ftdm_channel_clear_detected_tones(ftdm_channel_t *ftdmchan);
/* start/stop echo cancelling at the beginning/end of a call */
FT_DECLARE(void) ftdm_set_echocancel_call_begin(ftdm_channel_t *chan);
FT_DECLARE(void) ftdm_set_echocancel_call_end(ftdm_channel_t *chan);
/*!
\brief Assert condition
@ -677,6 +680,14 @@ FT_DECLARE(void) ftdm_channel_clear_detected_tones(ftdm_channel_t *ftdmchan);
#define ftdm_span_lock(span) ftdm_mutex_lock(span->mutex)
#define ftdm_span_unlock(span) ftdm_mutex_unlock(span->mutex)
#define ftdm_test_and_set_media(fchan) \
do { \
if (!ftdm_test_flag((fchan), FTDM_CHANNEL_MEDIA)) { \
ftdm_set_flag((fchan), FTDM_CHANNEL_MEDIA); \
ftdm_set_echocancel_call_begin((fchan)); \
} \
} while (0);
FT_DECLARE_DATA extern const char *FTDM_LEVEL_NAMES[9];
static __inline__ void ftdm_abort(void)

9
libs/freetdm/src/include/private/ftdm_types.h
View File

@ -227,16 +227,11 @@ typedef enum {
#define FTDM_CHANNEL_OUTBOUND (1ULL << 18)
#define FTDM_CHANNEL_SUSPENDED (1ULL << 19)
#define FTDM_CHANNEL_3WAY (1ULL << 20)
/* this 3 flags are really nonsense used by boost module only, as soon
* as we deprecate/delete boost module we can get rid of them
* ==================
* */
#define FTDM_CHANNEL_PROGRESS (1ULL << 21)
/*!< There is media on the channel already */
#define FTDM_CHANNEL_MEDIA (1ULL << 22)
/*!< The channel was answered */
#define FTDM_CHANNEL_ANSWERED (1ULL << 23)
/* ================== */
#define FTDM_CHANNEL_MUTE (1ULL << 24)
#define FTDM_CHANNEL_USE_RX_GAIN (1ULL << 25)
#define FTDM_CHANNEL_USE_TX_GAIN (1ULL << 26)