static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct audio *audio = file->private_data;
int rc = -EINVAL;
MM_DBG("cmd %d", cmd);
mutex_lock(&audio->lock);
switch (cmd) {
case AUDIO_START:
MM_DBG("AUDIO_START\n");
rc = audio_enable(audio);
break;
case AUDIO_STOP:
MM_DBG("AUDIO_STOP\n");
rc = audio_disable(audio);
audio->running = 0;
audio->enabled = 0;
break;
default:
rc = -EINVAL;
}
mutex_unlock(&audio->lock);
return rc;
}
static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct audio *audio = file->private_data;
int rc = -EINVAL;
pr_info("cmd = %d\n", cmd);
mutex_lock(&audio->lock);
switch (cmd) {
case AUDIO_START:
pr_info("AUDIO_START\n");
rc = audio_enable(audio);
break;
case AUDIO_STOP:
pr_info("AUDIO_STOP\n");
rc = audio_disable(audio);
audio->running = 0;
audio->enabled = 0;
break;
case AUDIO_GET_SESSION_ID:
if (copy_to_user((void *) arg, &audio->dec_id,
sizeof(unsigned short)))
rc = -EFAULT;
else
rc = 0;
break;
default:
rc = -EINVAL;
}
mutex_unlock(&audio->lock);
return rc;
}
static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct audio *audio = file->private_data;
int rc = -EINVAL;
if (cmd == AUDIO_GET_STATS) {
struct msm_audio_stats stats;
memset(&stats, 0, sizeof(stats));
stats.byte_count = atomic_read(&audio->out_bytes);
if (copy_to_user((void *) arg, &stats, sizeof(stats)))
return -EFAULT;
return 0;
}
mutex_lock(&audio->lock);
switch (cmd) {
case AUDIO_START:
rc = audio_enable(audio);
if (rc == 0)
audio->enabled = 1;
break;
case AUDIO_STOP:
if (audio->enabled) {
audio->stopped = 1;
rc = audio_disable(audio);
if (rc == 0) {
audio->enabled = 0;
audio->running = 0;
wake_up(&audio->wait);
} else
audio->stopped = 0;
}
break;
case AUDIO_SET_CONFIG: {
struct msm_audio_config config;
if (copy_from_user(&config, (void *) arg, sizeof(config))) {
rc = -EFAULT;
break;
}
if (config.type == 0) {
/* Selection for different PCM intect point */
} else {
rc = -EINVAL;
break;
}
rc = 0;
break;
}
case AUDIO_GET_CONFIG: {
struct msm_audio_config config;
config.buffer_size = MAX_VOC_FRAME_SIZE * 2;
config.buffer_count = MAX_VOC_FRAMES;
config.sample_rate = 8000;
config.channel_count = 1;
config.type = 0;
config.unused[0] = 0;
config.unused[1] = 0;
config.unused[2] = 0;
if (copy_to_user((void *) arg, &config, sizeof(config)))
rc = -EFAULT;
else
rc = 0;
break;
}
default: {
rc = -EINVAL;
MM_ERR(" Unsupported ioctl 0x%8x\n", cmd);
}
}
mutex_unlock(&audio->lock);
return rc;
}
