#include "audio-api.h"
#include "audio-alsa.h"
+snd_mixer_selem_channel_id_t SCHANNELS[8] = {
+ SND_MIXER_SCHN_FRONT_LEFT,
+ SND_MIXER_SCHN_FRONT_RIGHT,
+ SND_MIXER_SCHN_FRONT_CENTER,
+ SND_MIXER_SCHN_REAR_LEFT,
+ SND_MIXER_SCHN_REAR_RIGHT,
+ SND_MIXER_SCHN_REAR_CENTER,
+ SND_MIXER_SCHN_SIDE_LEFT,
+ SND_MIXER_SCHN_SIDE_RIGHT
+};
+
PUBLIC unsigned char _alsa_init (const char *name, audioCtxHandleT *ctx) {
snd_pcm_t *dev;
snd_mixer_t *mixer;
snd_mixer_selem_id_t *mixer_sid;
snd_mixer_elem_t *mixer_elm;
+ snd_mixer_elem_t *mixer_elm_m;
unsigned int rate = 22050;
long vol, vol_min, vol_max;
- int num;
+ int num, i;
if (snd_pcm_open (&dev, name, SND_PCM_STREAM_PLAYBACK, 0) < 0)
return 0;
snd_mixer_selem_id_set_name (mixer_sid, "Master");
mixer_elm = snd_mixer_find_selem (mixer, mixer_sid);
+ mixer_elm_m = NULL;
+
if (!mixer_elm) {
/* no "Master" mixer ; we are probably on a board... search ! */
for (mixer_elm = snd_mixer_first_elem (mixer); mixer_elm != NULL;
if (snd_mixer_elem_info (mixer_elm) < 0)
continue;
snd_mixer_selem_get_id (mixer_elm, mixer_sid);
- if (strstr (snd_mixer_selem_id_get_name (mixer_sid), "Master") ||
- strstr (snd_mixer_selem_id_get_name (mixer_sid), "Playback"))
+ if (strstr (snd_mixer_selem_id_get_name (mixer_sid), "DVC Out")) {
+
+ /* this is Porter... let us found the specific mute switch */
+ snd_mixer_selem_id_set_index (mixer_sid, 0);
+ snd_mixer_selem_id_set_name (mixer_sid, "DVC Out Mute");
+ mixer_elm_m = snd_mixer_find_selem (mixer, mixer_sid);
+
break;
+ }
}
}
}
/* allocate the global array if it hasn't been done */
- if (!dev_ctx) {
- dev_ctx = (dev_ctx_T**) malloc (sizeof(dev_ctx_T));
- dev_ctx[0] = (dev_ctx_T*) malloc (sizeof(dev_ctx_T));
- dev_ctx[0]->name = NULL;
- dev_ctx[0]->dev = NULL;
+ if (!dev_ctx_a) {
+ dev_ctx_a = (dev_ctx_alsa_T**) malloc (sizeof(dev_ctx_alsa_T));
+ dev_ctx_a[0] = (dev_ctx_alsa_T*) malloc (sizeof(dev_ctx_alsa_T));
+ dev_ctx_a[0]->name = NULL;
+ dev_ctx_a[0]->dev = NULL;
}
/* is a card with similar name already opened ? */
- for (num = 0; num < (sizeof(dev_ctx)/sizeof(dev_ctx_T)); num++) {
- if (dev_ctx[num]->name &&
- !strcmp (dev_ctx[num]->name, name))
+ for (num = 0; num < (sizeof(dev_ctx_a)/sizeof(dev_ctx_alsa_T)); num++) {
+ if (dev_ctx_a[num]->name &&
+ !strcmp (dev_ctx_a[num]->name, name))
return 0;
}
num++;
/* it's not... let us add it to the global array */
- dev_ctx = (dev_ctx_T**) realloc (dev_ctx, (num+1)*sizeof(dev_ctx_T));
- dev_ctx[num] = (dev_ctx_T*) malloc (sizeof(dev_ctx_T));
- dev_ctx[num]->name = strdup (name);
- dev_ctx[num]->dev = dev;
- dev_ctx[num]->params = params;
- dev_ctx[num]->mixer_elm = mixer_elm;
- dev_ctx[num]->vol_max = vol_max;
- dev_ctx[num]->vol = vol;
- dev_ctx[num]->thr_should_run = 0;
- dev_ctx[num]->thr_finished = 0;
+ dev_ctx_a = (dev_ctx_alsa_T**) realloc (dev_ctx_a, (num+1)*sizeof(dev_ctx_alsa_T));
+ dev_ctx_a[num] = (dev_ctx_alsa_T*) malloc (sizeof(dev_ctx_alsa_T));
+ dev_ctx_a[num]->name = strdup (name);
+ dev_ctx_a[num]->dev = dev;
+ dev_ctx_a[num]->params = params;
+ dev_ctx_a[num]->mixer_elm = mixer_elm;
+ dev_ctx_a[num]->mixer_elm_m = mixer_elm_m;
+ dev_ctx_a[num]->vol_max = vol_max;
+ dev_ctx_a[num]->vol = vol;
+ dev_ctx_a[num]->thr_should_run = 0;
+ dev_ctx_a[num]->thr_finished = 0;
/* make the client context aware of current card state */
- ctx->volume = _alsa_get_volume (num);
+ for (i = 0; i < 8; i++)
+ ctx->volume[i] = _alsa_get_volume (num, i);
ctx->mute = _alsa_get_mute (num);
ctx->idx = num;
+ ctx->name = strdup (name);
+
+ if (verbose) fprintf (stderr, "Successfully initialized ALSA backend.\n");
return 1;
}
int num;
- for (num = 0; num < (sizeof(dev_ctx)/sizeof(dev_ctx_T)); num++) {
- if (dev_ctx[num]->name &&
- !strcmp (dev_ctx[num]->name, name)) {
- snd_pcm_close (dev_ctx[num]->dev);
- snd_pcm_hw_params_free (dev_ctx[num]->params);
- free (dev_ctx[num]->name);
- dev_ctx[num]->name = NULL;
- dev_ctx[num]->dev = NULL;
- free(dev_ctx[num]);
+ for (num = 0; num < (sizeof(dev_ctx_a)/sizeof(dev_ctx_alsa_T)); num++) {
+ if (dev_ctx_a[num]->name &&
+ !strcmp (dev_ctx_a[num]->name, name)) {
+ snd_pcm_close (dev_ctx_a[num]->dev);
+ snd_pcm_hw_params_free (dev_ctx_a[num]->params);
+ free (dev_ctx_a[num]->name);
+ dev_ctx_a[num]->dev = NULL;
+ dev_ctx_a[num]->name = NULL;
+ free (dev_ctx_a[num]);
return;
}
}
}
-PUBLIC void _alsa_play (unsigned int num) {
+PUBLIC void _alsa_play (int num) {
- if (!dev_ctx || !dev_ctx[num] || dev_ctx[num]->thr_should_run ||
+ if (!dev_ctx_a || !dev_ctx_a[num] || dev_ctx_a[num]->thr_should_run ||
access (AUDIO_BUFFER, F_OK) == -1)
return;
- dev_ctx[num]->thr_should_run = 1;
- dev_ctx[num]->thr_finished = 0;
- pthread_create(&dev_ctx[num]->thr, NULL, _play_thread_fn, (void*)dev_ctx[num]);
+ dev_ctx_a[num]->thr_should_run = 1;
+ dev_ctx_a[num]->thr_finished = 0;
+ pthread_create (&dev_ctx_a[num]->thr, NULL, _alsa_play_thread_fn, (void*)dev_ctx_a[num]);
}
-PUBLIC void _alsa_stop (unsigned int num) {
+PUBLIC void _alsa_stop (int num) {
- if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->thr_should_run)
+ if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->thr_should_run)
return;
/* stop the "while" loop in thread */
- dev_ctx[num]->thr_should_run = 0;
+ dev_ctx_a[num]->thr_should_run = 0;
- while (!dev_ctx[num]->thr_finished)
+ while (!dev_ctx_a[num]->thr_finished)
usleep(100000);
- pthread_join(dev_ctx[num]->thr, NULL);
+ pthread_join (dev_ctx_a[num]->thr, NULL);
}
-PUBLIC unsigned int _alsa_get_volume (unsigned int num) {
+PUBLIC unsigned int _alsa_get_volume (int num, unsigned int channel) {
- if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->mixer_elm)
- return;
+ if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm)
+ return 0;
- snd_mixer_selem_get_playback_volume (dev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_LEFT, &dev_ctx[num]->vol);
+ snd_mixer_selem_get_playback_volume (dev_ctx_a[num]->mixer_elm, SCHANNELS[channel], &dev_ctx_a[num]->vol);
- return (unsigned int)(dev_ctx[num]->vol*100)/dev_ctx[num]->vol_max;
+ return (int)(dev_ctx_a[num]->vol*100)/dev_ctx_a[num]->vol_max;
}
-PUBLIC unsigned int _alsa_set_volume (unsigned int num, unsigned int vol) {
+PUBLIC void _alsa_set_volume (int num, unsigned int channel, unsigned int vol) {
- if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->mixer_elm || vol > 100)
+ if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm ||
+ vol > 100)
return;
- snd_mixer_selem_set_playback_volume_all (dev_ctx[num]->mixer_elm, (vol*dev_ctx[num]->vol_max)/100);
+ snd_mixer_selem_set_playback_volume (dev_ctx_a[num]->mixer_elm, SCHANNELS[channel], (vol*dev_ctx_a[num]->vol_max)/100);
+
}
-PUBLIC unsigned char _alsa_get_mute (unsigned int num) {
+PUBLIC void _alsa_set_volume_all (int num, unsigned int vol) {
+
+ if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm ||
+ vol > 100)
+
+ snd_mixer_selem_set_playback_volume_all (dev_ctx_a[num]->mixer_elm, (vol*dev_ctx_a[num]->vol_max)/100);
+}
+
+PUBLIC unsigned char _alsa_get_mute (int num) {
int mute = 0;
+ snd_mixer_elem_t *elm_m;
- if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->mixer_elm)
- return;
+ if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm)
+ return 0;
- if (snd_mixer_selem_has_playback_switch (dev_ctx[num]->mixer_elm)) {
- snd_mixer_selem_get_playback_switch (dev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_LEFT, &mute);
- snd_mixer_selem_get_playback_switch (dev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_RIGHT, &mute);
+ dev_ctx_a[num]->mixer_elm_m ? (elm_m = dev_ctx_a[num]->mixer_elm_m) :
+ (elm_m = dev_ctx_a[num]->mixer_elm);
+ if (snd_mixer_selem_has_playback_switch (elm_m)) {
+ snd_mixer_selem_get_playback_switch (elm_m, SND_MIXER_SCHN_FRONT_LEFT, &mute);
+ snd_mixer_selem_get_playback_switch (elm_m, SND_MIXER_SCHN_FRONT_RIGHT, &mute);
}
- return (unsigned char)!mute;
+ if (dev_ctx_a[num]->mixer_elm_m)
+ return (unsigned char)mute;
+ else
+ return (unsigned char)!mute;
}
-PUBLIC void _alsa_set_mute (unsigned int num, unsigned char mute) {
+PUBLIC void _alsa_set_mute (int num, unsigned char tomute) {
+
+ snd_mixer_elem_t *elm_m;
+ int mute;
- if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->mixer_elm || 1 < mute < 0)
+ if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm || 1 < tomute)
return;
- if (snd_mixer_selem_has_playback_switch (dev_ctx[num]->mixer_elm))
- snd_mixer_selem_set_playback_switch_all (dev_ctx[num]->mixer_elm, !mute);
+ if (dev_ctx_a[num]->mixer_elm_m) {
+ elm_m = dev_ctx_a[num]->mixer_elm_m;
+ mute = (int)!tomute;
+ } else {
+ elm_m = dev_ctx_a[num]->mixer_elm;
+ mute = (int)tomute;
+ }
+
+ if (snd_mixer_selem_has_playback_switch (elm_m))
+ snd_mixer_selem_set_playback_switch_all (elm_m, !mute);
}
-PUBLIC void _alsa_set_rate (unsigned int num, unsigned int rate) {
+PUBLIC void _alsa_set_rate (int num, unsigned int rate) {
- if (!dev_ctx || !dev_ctx[num])
+ if (!dev_ctx_a || !dev_ctx_a[num])
return;
- snd_pcm_hw_params_set_rate_near (dev_ctx[num]->dev, dev_ctx[num]->params, &rate, 0);
+ snd_pcm_hw_params_set_rate_near (dev_ctx_a[num]->dev, dev_ctx_a[num]->params, &rate, 0);
}
-PUBLIC void _alsa_set_channels (unsigned int num, unsigned int channels) {
+PUBLIC void _alsa_set_channels (int num, unsigned int channels) {
- if (!dev_ctx || !dev_ctx[num])
+ if (!dev_ctx_a || !dev_ctx_a[num])
return;
- snd_pcm_hw_params_set_channels (dev_ctx[num]->dev, dev_ctx[num]->params, channels);
+ snd_pcm_hw_params_set_channels (dev_ctx_a[num]->dev, dev_ctx_a[num]->params, channels);
}
/* ---- LOCAL THREADED FUNCTIONS ---- */
-STATIC void* _play_thread_fn (void *ctx) {
+STATIC void* _alsa_play_thread_fn (void *ctx) {
- dev_ctx_T *dev_ctx = (dev_ctx_T *)ctx;
+ dev_ctx_alsa_T *dev_ctx_a = (dev_ctx_alsa_T *)ctx;
FILE *file = NULL;
char *buf = NULL;
long size;
file = fopen (AUDIO_BUFFER, "rb");
- while (dev_ctx->thr_should_run && file && (access (AUDIO_BUFFER, F_OK) != -1) ) {
+ while (dev_ctx_a->thr_should_run && file && (access (AUDIO_BUFFER, F_OK) != -1) ) {
fseek (file, 0, SEEK_END);
size = ftell (file);
buf = (char*) realloc (buf, size * sizeof(char));
fread (buf, 1, size, file);
fflush (file);
- if ((res = snd_pcm_writei (dev_ctx->dev, buf, frames)) != frames) {
- snd_pcm_recover (dev_ctx->dev, res, 0);
- snd_pcm_prepare (dev_ctx->dev);
+ if ((res = snd_pcm_writei (dev_ctx_a->dev, buf, frames)) != frames) {
+ snd_pcm_recover (dev_ctx_a->dev, res, 0);
+ snd_pcm_prepare (dev_ctx_a->dev);
}
/* snd_pcm_drain (dev_ctx->dev); */
}
if (buf) free(buf);
if (file) fclose(file);
- dev_ctx->thr_finished = 1;
+ dev_ctx_a->thr_finished = 1;
return 0;
}
Code Review / src / app-framework-binder.git / blobdiff