static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
{
ALOGV("usb:audio_hw::out out_set_parameters() keys:%s", kvpairs);
struct stream_out *out = (struct stream_out *)stream;
char value[32];
int param_val;
int routing = 0;
int ret_value = 0;
int card = -1;
int device = -1;
struct str_parms * parms = str_parms_create_str(kvpairs);
pthread_mutex_lock(&out->dev->lock);
pthread_mutex_lock(&out->lock);
param_val = str_parms_get_str(parms, "card", value, sizeof(value));
if (param_val >= 0)
card = atoi(value);
param_val = str_parms_get_str(parms, "device", value, sizeof(value));
if (param_val >= 0)
device = atoi(value);
if (card >= 0 && device >= 0 && !profile_is_cached_for(out->profile, card, device)) {
/* cannot read pcm device info if playback is active */
if (!out->standby)
ret_value = -ENOSYS;
else {
int saved_card = out->profile->card;
int saved_device = out->profile->device;
out->profile->card = card;
out->profile->device = device;
ret_value = profile_read_device_info(out->profile) ? 0 : -EINVAL;
if (ret_value != 0) {
out->profile->card = saved_card;
out->profile->device = saved_device;
}
}
}
pthread_mutex_unlock(&out->lock);
pthread_mutex_unlock(&out->dev->lock);
str_parms_destroy(parms);
return ret_value;
}
static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
{
ALOGV("in_set_parameters() keys:%s", kvpairs);
struct stream_in *in = (struct stream_in *)stream;
char value[32];
int param_val;
int routing = 0;
int ret_value = 0;
int card = -1;
int device = -1;
if (!parse_card_device_params(false, &card, &device)) {
// nothing to do
return ret_value;
}
lock_input_stream(in);
pthread_mutex_lock(&in->dev->lock);
if (card >= 0 && device >= 0 && !profile_is_cached_for(in->profile, card, device)) {
/* cannot read pcm device info if playback is active */
if (!in->standby)
ret_value = -ENOSYS;
else {
int saved_card = in->profile->card;
int saved_device = in->profile->device;
in->profile->card = card;
in->profile->device = device;
ret_value = profile_read_device_info(in->profile) ? 0 : -EINVAL;
if (ret_value != 0) {
in->profile->card = saved_card;
in->profile->device = saved_device;
}
}
}
pthread_mutex_unlock(&in->dev->lock);
pthread_mutex_unlock(&in->lock);
return ret_value;
}
static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
{
ALOGV("out_set_parameters() keys:%s", kvpairs);
struct stream_out *out = (struct stream_out *)stream;
int routing = 0;
int ret_value = 0;
int card = -1;
int device = -1;
if (!parse_card_device_params(true, &card, &device)) {
// nothing to do
return ret_value;
}
lock_output_stream(out);
/* Lock the device because that is where the profile lives */
pthread_mutex_lock(&out->dev->lock);
if (!profile_is_cached_for(out->profile, card, device)) {
/* cannot read pcm device info if playback is active */
if (!out->standby)
ret_value = -ENOSYS;
else {
int saved_card = out->profile->card;
int saved_device = out->profile->device;
out->profile->card = card;
out->profile->device = device;
ret_value = profile_read_device_info(out->profile) ? 0 : -EINVAL;
if (ret_value != 0) {
out->profile->card = saved_card;
out->profile->device = saved_device;
}
}
}
pthread_mutex_unlock(&out->dev->lock);
pthread_mutex_unlock(&out->lock);
return ret_value;
}
