diff options
| author | Luiz Augusto von Dentz <luiz.dentz@openbossa.org> | 2008-03-04 21:38:53 +0000 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.dentz@openbossa.org> | 2008-03-04 21:38:53 +0000 |
| commit | 37c2fa54a9eb3d086849acdf4a4d64157334b21a (patch) | |
| tree | 27b6fb594af83d54e84c9bf2366094b8e7ac6706 | |
| parent | 211ec74f0e8ce372dd4958ddc2c7f8747fb65355 (diff) | |
Make alsa plugin to detect disconnection of devices.
| -rw-r--r-- | audio/pcm_bluetooth.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/audio/pcm_bluetooth.c b/audio/pcm_bluetooth.c index 2282b2ed..13550663 100644 --- a/audio/pcm_bluetooth.c +++ b/audio/pcm_bluetooth.c @@ -750,6 +750,11 @@ static int bluetooth_poll_revents(snd_pcm_ioplug_t *io ATTRIBUTE_UNUSED, return 0; } +static int bluetooth_playback_poll_descriptors_count(snd_pcm_ioplug_t *io) +{ + return 2; +} + static int bluetooth_playback_poll_descriptors(snd_pcm_ioplug_t *io, struct pollfd *pfd, unsigned int space) { @@ -759,14 +764,17 @@ static int bluetooth_playback_poll_descriptors(snd_pcm_ioplug_t *io, assert(data->pipefd[0] >= 0); - if (space < 1) + if (space < 2) return 0; pfd[0].fd = data->pipefd[0]; pfd[0].events = POLLIN; pfd[0].revents = 0; + pfd[1].fd = data->stream.fd; + pfd[1].events = POLLERR | POLLHUP | POLLNVAL; + pfd[1].revents = 0; - return 1; + return 2; } static int bluetooth_playback_poll_revents(snd_pcm_ioplug_t *io, @@ -779,14 +787,19 @@ static int bluetooth_playback_poll_revents(snd_pcm_ioplug_t *io, DBG(""); assert(pfds); - assert(nfds == 1); + assert(nfds == 2); assert(revents); assert(pfds[0].fd >= 0); + assert(pfds[1].fd >= 0); if (io->state != SND_PCM_STATE_PREPARED) ret = read(pfds[0].fd, buf, 1); - *revents = (pfds[0].revents & ~POLLIN) | POLLOUT; + if (pfds[1].revents & (POLLERR | POLLHUP | POLLNVAL)) + io->state = SND_PCM_STATE_DISCONNECTED; + + revents[0] = (pfds[0].revents & ~POLLIN) | POLLOUT; + revents[1] = (pfds[1].revents & ~POLLIN); return 0; } @@ -1087,6 +1100,7 @@ static snd_pcm_ioplug_callback_t bluetooth_hsp_playback = { .hw_params = bluetooth_hsp_hw_params, .prepare = bluetooth_prepare, .transfer = bluetooth_hsp_write, + .poll_descriptors_count = bluetooth_playback_poll_descriptors_count, .poll_descriptors = bluetooth_playback_poll_descriptors, .poll_revents = bluetooth_playback_poll_revents, .delay = bluetooth_playback_delay, @@ -1112,6 +1126,7 @@ static snd_pcm_ioplug_callback_t bluetooth_a2dp_playback = { .hw_params = bluetooth_a2dp_hw_params, .prepare = bluetooth_prepare, .transfer = bluetooth_a2dp_write, + .poll_descriptors_count = bluetooth_playback_poll_descriptors_count, .poll_descriptors = bluetooth_playback_poll_descriptors, .poll_revents = bluetooth_playback_poll_revents, .delay = bluetooth_playback_delay, |