static int auda2dp_in_release(struct inode *inode, struct file *file)
{
struct audio_a2dp_in *audio = file->private_data;
mutex_lock(&audio->lock);
/* with draw frequency for session
incase not stopped the driver */
msm_snddev_withdraw_freq(audio->enc_id, SNDDEV_CAP_TX,
AUDDEV_CLNT_ENC);
auddev_unregister_evt_listner(AUDDEV_CLNT_ENC, audio->enc_id);
/*reset the sampling frequency information at audpreproc layer*/
audio->session_info.sampling_freq = 0;
audpreproc_update_audrec_info(&audio->session_info);
auda2dp_in_disable(audio);
auda2dp_in_flush(audio);
msm_adsp_put(audio->audrec);
audpreproc_aenc_free(audio->enc_id);
audio->audrec = NULL;
audio->opened = 0;
if (audio->data) {
msm_subsystem_unmap_buffer(audio->msm_map);
free_contiguous_memory_by_paddr(audio->phys);
audio->data = NULL;
}
mutex_unlock(&audio->lock);
return 0;
}
static int auda2dp_in_release(struct inode *inode, struct file *file)
{
struct audio_a2dp_in *audio = file->private_data;
mutex_lock(&audio->lock);
/* with draw frequency for session
incase not stopped the driver */
msm_snddev_withdraw_freq(audio->enc_id, SNDDEV_CAP_TX,
AUDDEV_CLNT_ENC);
auddev_unregister_evt_listner(AUDDEV_CLNT_ENC, audio->enc_id);
auda2dp_in_disable(audio);
auda2dp_in_flush(audio);
msm_adsp_put(audio->audrec);
audpreproc_aenc_free(audio->enc_id);
audio->audrec = NULL;
audio->opened = 0;
mutex_unlock(&audio->lock);
return 0;
}
static int auda2dp_in_open(struct inode *inode, struct file *file)
{
struct audio_a2dp_in *audio = &the_audio_a2dp_in;
int rc;
int encid;
mutex_lock(&audio->lock);
if (audio->opened) {
rc = -EBUSY;
goto done;
}
audio->phys = allocate_contiguous_ebi_nomap(DMASZ, SZ_4K);
if (audio->phys) {
audio->msm_map = msm_subsystem_map_buffer(
audio->phys, DMASZ,
MSM_SUBSYSTEM_MAP_KADDR, NULL, 0);
if (IS_ERR(audio->msm_map)) {
MM_ERR("could not map the phys address to kernel"
"space\n");
rc = -ENOMEM;
free_contiguous_memory_by_paddr(audio->phys);
goto done;
}
audio->data = (u8 *)audio->msm_map->vaddr;
} else {
MM_ERR("could not allocate DMA buffers\n");
rc = -ENOMEM;
goto done;
}
MM_DBG("Memory addr = 0x%8x phy addr = 0x%8x\n",\
(int) audio->data, (int) audio->phys);
if ((file->f_mode & FMODE_WRITE) &&
(file->f_mode & FMODE_READ)) {
rc = -EACCES;
MM_ERR("Non tunnel encoding is not supported\n");
goto done;
} else if (!(file->f_mode & FMODE_WRITE) &&
(file->f_mode & FMODE_READ)) {
audio->mode = MSM_AUD_ENC_MODE_TUNNEL;
MM_DBG("Opened for Tunnel mode encoding\n");
} else {
rc = -EACCES;
goto done;
}
/* Settings will be re-config at AUDIO_SET_CONFIG/SBC_ENC_CONFIG,
* but at least we need to have initial config
*/
audio->channel_mode = AUDREC_CMD_MODE_MONO;
audio->buffer_size = FRAME_SIZE_SBC;
audio->samp_rate = 48000;
audio->enc_type = ENC_TYPE_SBC | audio->mode;
audio->cfg.bit_allocation = AUDIO_SBC_BA_SNR;
audio->cfg.mode = AUDIO_SBC_MODE_JSTEREO;
audio->cfg.number_of_subbands = AUDIO_SBC_BANDS_8;
audio->cfg.number_of_blocks = AUDIO_SBC_BLOCKS_16;
audio->cfg.bit_rate = 320000; /* max 512kbps(mono), 320kbs(others) */
encid = audpreproc_aenc_alloc(audio->enc_type, &audio->module_name,
&audio->queue_ids);
if (encid < 0) {
MM_ERR("No free encoder available\n");
rc = -ENODEV;
goto done;
}
audio->enc_id = encid;
rc = msm_adsp_get(audio->module_name, &audio->audrec,
&audrec_adsp_ops, audio);
if (rc) {
audpreproc_aenc_free(audio->enc_id);
goto done;
}
audio->stopped = 0;
audio->source = 0;
audio->abort = 0;
auda2dp_in_flush(audio);
audio->device_events = AUDDEV_EVT_DEV_RDY | AUDDEV_EVT_DEV_RLS |
AUDDEV_EVT_FREQ_CHG;
rc = auddev_register_evt_listner(audio->device_events,
AUDDEV_CLNT_ENC, audio->enc_id,
a2dp_in_listener, (void *) audio);
if (rc) {
MM_ERR("failed to register device event listener\n");
goto evt_error;
}
audio->build_id = socinfo_get_build_id();
MM_DBG("Modem build id = %s\n", audio->build_id);
file->private_data = audio;
audio->opened = 1;
rc = 0;
done:
mutex_unlock(&audio->lock);
return rc;
evt_error:
msm_adsp_put(audio->audrec);
audpreproc_aenc_free(audio->enc_id);
mutex_unlock(&audio->lock);
return rc;
}
/* ------------------- device --------------------- */
static long auda2dp_in_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct audio_a2dp_in *audio = file->private_data;
int rc = 0;
if (cmd == AUDIO_GET_STATS) {
struct msm_audio_stats stats;
stats.byte_count = atomic_read(&audio->in_bytes);
stats.sample_count = atomic_read(&audio->in_samples);
if (copy_to_user((void *) arg, &stats, sizeof(stats)))
return -EFAULT;
return rc;
}
mutex_lock(&audio->lock);
switch (cmd) {
case AUDIO_START: {
uint32_t freq;
/* Poll at 48KHz always */
freq = 48000;
MM_DBG("AUDIO_START\n");
rc = msm_snddev_request_freq(&freq, audio->enc_id,
SNDDEV_CAP_TX, AUDDEV_CLNT_ENC);
MM_DBG("sample rate configured %d sample rate requested %d\n",
freq, audio->samp_rate);
if (rc < 0) {
MM_DBG("sample rate can not be set, return code %d\n",\
rc);
msm_snddev_withdraw_freq(audio->enc_id,
SNDDEV_CAP_TX, AUDDEV_CLNT_ENC);
MM_DBG("msm_snddev_withdraw_freq\n");
break;
}
/*update aurec session info in audpreproc layer*/
audio->session_info.session_id = audio->enc_id;
audio->session_info.sampling_freq = audio->samp_rate;
audpreproc_update_audrec_info(&audio->session_info);
rc = auda2dp_in_enable(audio);
if (!rc) {
rc =
wait_event_interruptible_timeout(audio->wait_enable,
audio->running != 0, 1*HZ);
MM_DBG("state %d rc = %d\n", audio->running, rc);
if (audio->running == 0) {
rc = -ENODEV;
msm_snddev_withdraw_freq(audio->enc_id,
SNDDEV_CAP_TX, AUDDEV_CLNT_ENC);
MM_DBG("msm_snddev_withdraw_freq\n");
} else
rc = 0;
}
audio->stopped = 0;
break;
}
case AUDIO_STOP: {
/*reset the sampling frequency information at audpreproc layer*/
audio->session_info.sampling_freq = 0;
audpreproc_update_audrec_info(&audio->session_info);
rc = auda2dp_in_disable(audio);
rc = msm_snddev_withdraw_freq(audio->enc_id,
SNDDEV_CAP_TX, AUDDEV_CLNT_ENC);
MM_DBG("msm_snddev_withdraw_freq\n");
audio->stopped = 1;
audio->abort = 0;
break;
}
case AUDIO_FLUSH: {
if (audio->stopped) {
/* Make sure we're stopped and we wake any threads
* that might be blocked holding the read_lock.
* While audio->stopped read threads will always
* exit immediately.
*/
wake_up(&audio->wait);
mutex_lock(&audio->read_lock);
auda2dp_in_flush(audio);
mutex_unlock(&audio->read_lock);
}
break;
}
case AUDIO_SET_STREAM_CONFIG: {
struct msm_audio_stream_config cfg;
if (copy_from_user(&cfg, (void *) arg, sizeof(cfg))) {
rc = -EFAULT;
break;
}
/* Allow only single frame */
if ((audio->enc_type == ENC_TYPE_SBC) &&
(cfg.buffer_size != FRAME_SIZE_SBC))
rc = -EINVAL;
else
audio->buffer_size = cfg.buffer_size;
break;
}
case AUDIO_GET_STREAM_CONFIG: {
struct msm_audio_stream_config cfg;
memset(&cfg, 0, sizeof(cfg));
if (audio->enc_type == ENC_TYPE_SBC)
cfg.buffer_size = FRAME_SIZE_SBC;
else
cfg.buffer_size = MONO_DATA_SIZE;
cfg.buffer_count = FRAME_NUM;
if (copy_to_user((void *) arg, &cfg, sizeof(cfg)))
rc = -EFAULT;
break;
}
case AUDIO_SET_SBC_ENC_CONFIG: {
if (copy_from_user(&audio->cfg, (void *) arg,
sizeof(audio->cfg))) {
rc = -EFAULT;
break;
}
audio->samp_rate = audio->cfg.sample_rate;
audio->channel_mode = audio->cfg.channels;
audio->enc_type = ENC_TYPE_SBC;
break;
}
case AUDIO_SET_CONFIG: {
struct msm_audio_config cfg;
if (copy_from_user(&cfg, (void *) arg, sizeof(cfg))) {
rc = -EFAULT;
break;
}
if (cfg.channel_count == 1) {
cfg.channel_count = AUDREC_CMD_MODE_MONO;
audio->buffer_size = MONO_DATA_SIZE;
} else if (cfg.channel_count == 2) {
cfg.channel_count = AUDREC_CMD_MODE_STEREO;
audio->buffer_size = STEREO_DATA_SIZE;
} else {
rc = -EINVAL;
break;
}
audio->samp_rate = cfg.sample_rate;
audio->channel_mode = cfg.channel_count;
audio->enc_type = ENC_TYPE_WAV;
break;
}
case AUDIO_GET_SBC_ENC_CONFIG: {
struct msm_audio_sbc_enc_config cfg;
memset(&cfg, 0, sizeof(cfg));
cfg.bit_allocation = audio->cfg.bit_allocation;
cfg.mode = audio->cfg.mode;
cfg.number_of_subbands = audio->cfg.number_of_subbands;
cfg.number_of_blocks = audio->cfg.number_of_blocks;
cfg.sample_rate = audio->samp_rate;
cfg.channels = audio->channel_mode;
cfg.bit_rate = audio->cfg.bit_rate;
if (copy_to_user((void *) arg, &cfg, sizeof(cfg)))
rc = -EFAULT;
break;
}
case AUDIO_GET_CONFIG: {
struct msm_audio_config cfg;
memset(&cfg, 0, sizeof(cfg));
cfg.buffer_count = FRAME_NUM;
cfg.sample_rate = audio->samp_rate;
if (audio->channel_mode == AUDREC_CMD_MODE_MONO) {
cfg.channel_count = 1;
cfg.buffer_size = MONO_DATA_SIZE;
} else {
cfg.channel_count = 2;
cfg.buffer_size = STEREO_DATA_SIZE;
}
cfg.type = ENC_TYPE_WAV;
if (copy_to_user((void *) arg, &cfg, sizeof(cfg)))
rc = -EFAULT;
break;
}
case AUDIO_GET_SESSION_ID: {
if (copy_to_user((void *) arg, &audio->enc_id,
sizeof(unsigned short))) {
rc = -EFAULT;
}
break;
}
default:
rc = -EINVAL;
}
mutex_unlock(&audio->lock);
return rc;
}
static int auda2dp_in_open(struct inode *inode, struct file *file)
{
struct audio_a2dp_in *audio = &the_audio_a2dp_in;
int rc;
int encid;
mutex_lock(&audio->lock);
if (audio->opened) {
rc = -EBUSY;
goto done;
}
if ((file->f_mode & FMODE_WRITE) &&
(file->f_mode & FMODE_READ)) {
rc = -EACCES;
MM_ERR("Non tunnel encoding is not supported\n");
goto done;
} else if (!(file->f_mode & FMODE_WRITE) &&
(file->f_mode & FMODE_READ)) {
audio->mode = MSM_AUD_ENC_MODE_TUNNEL;
MM_DBG("Opened for Tunnel mode encoding\n");
} else {
rc = -EACCES;
goto done;
}
/* Settings will be re-config at AUDIO_SET_CONFIG/SBC_ENC_CONFIG,
* but at least we need to have initial config
*/
audio->channel_mode = AUDREC_CMD_MODE_MONO;
audio->buffer_size = FRAME_SIZE_SBC;
audio->samp_rate = 48000;
audio->enc_type = ENC_TYPE_SBC | audio->mode;
audio->cfg.bit_allocation = AUDIO_SBC_BA_SNR;
audio->cfg.mode = AUDIO_SBC_MODE_JSTEREO;
audio->cfg.number_of_subbands = AUDIO_SBC_BANDS_8;
audio->cfg.number_of_blocks = AUDIO_SBC_BLOCKS_16;
audio->cfg.bit_rate = 320000; /* max 512kbps(mono), 320kbs(others) */
encid = audpreproc_aenc_alloc(audio->enc_type, &audio->module_name,
&audio->queue_ids);
if (encid < 0) {
MM_ERR("No free encoder available\n");
rc = -ENODEV;
goto done;
}
audio->enc_id = encid;
rc = msm_adsp_get(audio->module_name, &audio->audrec,
&audrec_adsp_ops, audio);
if (rc) {
audpreproc_aenc_free(audio->enc_id);
goto done;
}
audio->stopped = 0;
audio->source = 0;
audio->abort = 0;
auda2dp_in_flush(audio);
audio->device_events = AUDDEV_EVT_DEV_RDY | AUDDEV_EVT_DEV_RLS |
AUDDEV_EVT_FREQ_CHG;
rc = auddev_register_evt_listner(audio->device_events,
AUDDEV_CLNT_ENC, audio->enc_id,
a2dp_in_listener, (void *) audio);
if (rc) {
MM_ERR("failed to register device event listener\n");
goto evt_error;
}
file->private_data = audio;
audio->opened = 1;
rc = 0;
done:
mutex_unlock(&audio->lock);
return rc;
evt_error:
msm_adsp_put(audio->audrec);
audpreproc_aenc_free(audio->enc_id);
mutex_unlock(&audio->lock);
return rc;
}