static int msm_lsm_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct lsm_priv *prtd = runtime->private_data;
int ret = 0;
if (!prtd->lsm_client) {
pr_err("%s: LSM client data ptr is NULL\n", __func__);
return -EINVAL;
}
ret = q6lsm_open(prtd->lsm_client, prtd->lsm_client->app_id);
if (ret < 0) {
pr_err("%s: lsm open failed, %d\n", __func__, ret);
q6lsm_client_free(prtd->lsm_client);
kfree(prtd);
return ret;
}
pr_debug("%s: Session ID %d\n", __func__,
prtd->lsm_client->session);
prtd->lsm_client->started = false;
spin_lock_init(&prtd->event_lock);
init_waitqueue_head(&prtd->event_wait);
runtime->private_data = prtd;
return 0;
}
struct lsm_client *q6lsm_client_alloc(lsm_app_cb cb, void *priv)
{
struct lsm_client *client;
int n;
pr_debug("%s: enter\n", __func__);
client = kzalloc(sizeof(struct lsm_client), GFP_KERNEL);
if (!client)
return NULL;
n = q6lsm_session_alloc(client);
if (n <= 0) {
kfree(client);
return NULL;
}
client->session = n;
client->cb = cb;
client->priv = priv;
pr_debug("%s:Client session %d\n", __func__, client->session);
if (CHECK_SESSION(client->session)) {
kfree(client);
return NULL;
}
pr_debug("%s:Client Session %d\n", __func__, client->session);
client->apr = apr_register("ADSP", "LSM", q6lsm_callback,
((client->session) << 8 | client->session),
client);
if (client->apr == NULL) {
pr_err("%s: Registration with APR failed\n", __func__);
goto fail;
}
pr_debug("%s Registering the common port with APR\n", __func__);
client->mmap_apr = q6lsm_mmap_apr_reg();
if (!client->mmap_apr) {
pr_err("%s: APR registration failed\n", __func__);
goto fail;
}
init_waitqueue_head(&client->cmd_wait);
mutex_init(&client->cmd_lock);
atomic_set(&client->cmd_state, CMD_STATE_CLEARED);
pr_debug("%s: New client allocated\n", __func__);
return client;
fail:
q6lsm_client_free(client);
return NULL;
}
static int msm_lsm_close(struct snd_pcm_substream *substream)
{
unsigned long flags;
struct snd_pcm_runtime *runtime = substream->runtime;
struct lsm_priv *prtd = runtime->private_data;
int ret = 0;
pr_debug("%s\n", __func__);
if (prtd->lsm_client->started) {
ret = q6lsm_stop(prtd->lsm_client, true);
if (ret)
pr_err("%s: session stop failed, err = %d\n",
__func__, ret);
else
pr_debug("%s: LSM client session stopped %d\n",
__func__, ret);
/*
* Go Ahead and try de-register sound model,
* even if stop failed
*/
prtd->lsm_client->started = false;
ret = q6lsm_deregister_sound_model(prtd->lsm_client);
if (ret)
pr_err("%s: dereg_snd_model failed, err = %d\n",
__func__, ret);
else
pr_debug("%s: dereg_snd_model succesful\n",
__func__);
}
q6lsm_close(prtd->lsm_client);
q6lsm_client_free(prtd->lsm_client);
spin_lock_irqsave(&prtd->event_lock, flags);
kfree(prtd->event_status);
prtd->event_status = NULL;
spin_unlock_irqrestore(&prtd->event_lock, flags);
kfree(prtd);
return 0;
}
static int msm_lsm_close(struct snd_pcm_substream *substream)
{
unsigned long flags;
struct snd_pcm_runtime *runtime = substream->runtime;
struct lsm_priv *prtd = runtime->private_data;
pr_debug("%s\n", __func__);
q6lsm_close(prtd->lsm_client);
q6lsm_client_free(prtd->lsm_client);
spin_lock_irqsave(&prtd->event_lock, flags);
kfree(prtd->event_status);
prtd->event_status = NULL;
spin_unlock_irqrestore(&prtd->event_lock, flags);
kfree(prtd);
return 0;
}
static int msm_lsm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct lsm_priv *prtd;
int ret = 0;
pr_debug("%s\n", __func__);
prtd = kzalloc(sizeof(struct lsm_priv), GFP_KERNEL);
if (!prtd) {
pr_err("%s: Failed to allocate memory for lsm_priv\n",
__func__);
return -ENOMEM;
}
prtd->substream = substream;
prtd->lsm_client = q6lsm_client_alloc(
(lsm_app_cb)lsm_event_handler, prtd);
if (!prtd->lsm_client) {
pr_err("%s: Could not allocate memory\n", __func__);
kfree(prtd);
return -ENOMEM;
}
ret = q6lsm_open(prtd->lsm_client);
if (ret < 0) {
pr_err("%s: lsm open failed, %d\n", __func__, ret);
q6lsm_client_free(prtd->lsm_client);
kfree(prtd);
return ret;
}
pr_debug("%s: Session ID %d\n", __func__, prtd->lsm_client->session);
prtd->lsm_client->started = false;
spin_lock_init(&prtd->event_lock);
init_waitqueue_head(&prtd->event_wait);
runtime->private_data = prtd;
return 0;
}
static int msm_lsm_ioctl_shared(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
unsigned long flags;
int ret;
struct snd_lsm_sound_model snd_model;
struct snd_lsm_sound_model_v2 snd_model_v2;
struct snd_lsm_session_data session_data;
int rc = 0;
int xchg = 0;
u32 size = 0;
struct snd_pcm_runtime *runtime = substream->runtime;
struct lsm_priv *prtd = runtime->private_data;
struct snd_lsm_event_status *user = arg;
struct snd_lsm_detection_params det_params;
uint8_t *confidence_level = NULL;
pr_debug("%s: enter cmd %x\n", __func__, cmd);
switch (cmd) {
case SNDRV_LSM_SET_SESSION_DATA:
pr_debug("%s: set Session data\n", __func__);
memcpy(&session_data, arg,
sizeof(struct snd_lsm_session_data));
if (prtd) {
if (session_data.app_id <= LSM_VOICE_WAKEUP_APP_ID_V2
&& session_data.app_id > 0) {
prtd->lsm_client->app_id = session_data.app_id;
ret = q6lsm_open(prtd->lsm_client,
prtd->lsm_client->app_id);
if (ret < 0) {
pr_err("%s: lsm open failed, %d\n",
__func__, ret);
q6lsm_client_free(prtd->lsm_client);
kfree(prtd);
return ret;
}
pr_debug("%s: Session ID %d\n", __func__,
prtd->lsm_client->session);
} else {
pr_err("%s:Invalid App id for Listen client\n",
__func__);
rc = -EINVAL;
}
} else {
pr_err("%s: LSM Priv data is NULL\n", __func__);
rc = -EINVAL;
}
break;
case SNDRV_LSM_REG_SND_MODEL_V2:
pr_debug("%s: Registering sound model V2\n", __func__);
memcpy(&snd_model_v2, arg,
sizeof(struct snd_lsm_sound_model_v2));
if (snd_model_v2.num_confidence_levels >
MAX_NUM_CONFIDENCE) {
pr_err("%s: Invalid conf_levels = %d, maximum allowed = %d\n",
__func__, snd_model_v2.num_confidence_levels,
MAX_NUM_CONFIDENCE);
rc = -EINVAL;
break;
}
prtd->lsm_client->snd_model_ver_inuse = SND_MODEL_IN_USE_V2;
rc = q6lsm_snd_model_buf_alloc(prtd->lsm_client,
snd_model_v2.data_size);
if (rc) {
pr_err("%s: q6lsm buffer alloc failed V2, size %d\n",
__func__, snd_model_v2.data_size);
break;
}
if (copy_from_user(prtd->lsm_client->sound_model.data,
snd_model_v2.data, snd_model_v2.data_size)) {
pr_err("%s: copy from user data failed\n"
"data %p size %d\n", __func__,
snd_model_v2.data, snd_model_v2.data_size);
q6lsm_snd_model_buf_free(prtd->lsm_client);
rc = -EFAULT;
break;
}
pr_debug("SND Model Magic no byte[0] %x,\n"
"byte[1] %x, byte[2] %x byte[3] %x\n",
snd_model_v2.data[0], snd_model_v2.data[1],
snd_model_v2.data[2], snd_model_v2.data[3]);
prtd->lsm_client->num_confidence_levels =
snd_model_v2.num_confidence_levels;
rc = msm_lsm_get_conf_levels(prtd->lsm_client,
snd_model_v2.confidence_level);
if (rc) {
pr_err("%s: get_conf_levels failed, err = %d\n",
__func__, rc);
break;
}
rc = q6lsm_register_sound_model(prtd->lsm_client,
snd_model_v2.detection_mode,
snd_model_v2.detect_failure);
if (rc < 0) {
pr_err("%s: Register snd Model v2 failed =%d\n",
__func__, rc);
kfree(confidence_level);
q6lsm_snd_model_buf_free(prtd->lsm_client);
}
kfree(prtd->lsm_client->confidence_levels);
prtd->lsm_client->confidence_levels = NULL;
break;
case SNDRV_LSM_SET_PARAMS:
if (!arg) {
pr_err("%s: %s Invalid argument\n",
__func__, "SNDRV_LSM_SET_PARAMS");
return -EINVAL;
}
memcpy(&det_params, arg,
sizeof(det_params));
if (det_params.num_confidence_levels >
MAX_NUM_CONFIDENCE) {
rc = -EINVAL;
break;
}
prtd->lsm_client->num_confidence_levels =
det_params.num_confidence_levels;
rc = msm_lsm_get_conf_levels(prtd->lsm_client,
det_params.conf_level);
if (rc) {
pr_err("%s: Failed to get conf_levels, err = %d\n",
__func__, rc);
break;
}
rc = q6lsm_set_data(prtd->lsm_client,
det_params.detect_mode,
det_params.detect_failure);
if (rc)
pr_err("%s: Failed to set params, err = %d\n",
__func__, rc);
kfree(prtd->lsm_client->confidence_levels);
prtd->lsm_client->confidence_levels = NULL;
break;
case SNDRV_LSM_REG_SND_MODEL:
pr_debug("%s: Registering sound model\n", __func__);
memcpy(&snd_model, arg, sizeof(struct snd_lsm_sound_model));
prtd->lsm_client->snd_model_ver_inuse = SND_MODEL_IN_USE_V1;
rc = q6lsm_snd_model_buf_alloc(prtd->lsm_client,
snd_model.data_size);
if (rc) {
pr_err("%s: q6lsm buffer alloc failed, size %d\n",
__func__, snd_model.data_size);
break;
}
if (copy_from_user(prtd->lsm_client->sound_model.data,
snd_model.data, snd_model.data_size)) {
pr_err("%s: copy from user data failed data %p size %d\n",
__func__, snd_model.data, snd_model.data_size);
rc = -EFAULT;
q6lsm_snd_model_buf_free(prtd->lsm_client);
break;
}
rc = q6lsm_set_kw_sensitivity_level(prtd->lsm_client,
snd_model.min_keyw_confidence,
snd_model.min_user_confidence);
if (rc) {
pr_err("%s: Error in KW sensitivity %x", __func__, rc);
q6lsm_snd_model_buf_free(prtd->lsm_client);
break;
}
rc = q6lsm_register_sound_model(prtd->lsm_client,
snd_model.detection_mode,
snd_model.detect_failure);
if (rc < 0) {
pr_err("%s: q6lsm_register_sound_model failed =%d\n",
__func__, rc);
q6lsm_snd_model_buf_free(prtd->lsm_client);
}
break;
case SNDRV_LSM_DEREG_SND_MODEL:
pr_debug("%s: Deregistering sound model\n", __func__);
rc = q6lsm_deregister_sound_model(prtd->lsm_client);
break;
case SNDRV_LSM_EVENT_STATUS:
pr_debug("%s: Get event status\n", __func__);
atomic_set(&prtd->event_wait_stop, 0);
rc = wait_event_freezable(prtd->event_wait,
(cmpxchg(&prtd->event_avail, 1, 0) ||
(xchg = atomic_cmpxchg(&prtd->event_wait_stop,
1, 0))));
pr_debug("%s: wait_event_freezable %d event_wait_stop %d\n",
__func__, rc, xchg);
if (!rc && !xchg) {
pr_debug("%s: New event available %ld\n", __func__,
prtd->event_avail);
spin_lock_irqsave(&prtd->event_lock, flags);
if (prtd->event_status) {
size = sizeof(*(prtd->event_status)) +
prtd->event_status->payload_size;
spin_unlock_irqrestore(&prtd->event_lock,
flags);
} else {
spin_unlock_irqrestore(&prtd->event_lock,
flags);
rc = -EINVAL;
pr_err("%s: prtd->event_status is NULL\n",
__func__);
break;
}
if (user->payload_size <
prtd->event_status->payload_size) {
pr_debug("%s: provided %dbytes isn't enough, needs %dbytes\n",
__func__, user->payload_size,
prtd->event_status->payload_size);
rc = -ENOMEM;
} else {
memcpy(user, prtd->event_status, size);
if (prtd->lsm_client->lab_enable
&& atomic_read(&prtd->read_abort)
&& prtd->event_status->status ==
LSM_VOICE_WAKEUP_STATUS_DETECTED) {
atomic_set(&prtd->read_abort, 0);
atomic_set(&prtd->buf_count, 0);
prtd->appl_cnt = 0;
prtd->dma_write = 0;
rc = msm_lsm_queue_lab_buffer(prtd,
0);
if (rc)
pr_err("%s: Queue buffer failed for lab rc = %d\n",
__func__, rc);
else
prtd->lsm_client->lab_started
= true;
}
}
} else if (xchg) {
pr_debug("%s: Wait aborted\n", __func__);
rc = 0;
}
break;
case SNDRV_LSM_ABORT_EVENT:
pr_debug("%s: Aborting event status wait\n", __func__);
atomic_set(&prtd->event_wait_stop, 1);
wake_up(&prtd->event_wait);
break;
case SNDRV_LSM_START:
pr_debug("%s: Starting LSM client session\n", __func__);
if (!prtd->lsm_client->started) {
if (prtd->lsm_client->lab_enable &&
!prtd->lsm_client->lab_started) {
atomic_set(&prtd->read_abort, 0);
/* Push the first period buffer */
ret = msm_lsm_queue_lab_buffer(prtd, 0);
if (ret) {
pr_err("%s: failed to queue buffers for LAB read %d\n"
, __func__, ret);
break;
}
prtd->lsm_client->lab_started = true;
}
ret = q6lsm_start(prtd->lsm_client, true);
if (!ret) {
prtd->lsm_client->started = true;
pr_debug("%s: LSM client session started\n",
__func__);
}
}
break;
case SNDRV_LSM_STOP: {
pr_debug("%s: Stopping LSM client session\n", __func__);
if (prtd->lsm_client->started) {
if (prtd->lsm_client->lab_enable) {
atomic_set(&prtd->read_abort, 1);
if (prtd->lsm_client->lab_started) {
ret = q6lsm_stop_lab(prtd->lsm_client);
if (ret)
pr_err("%s: stop lab failed ret %d\n",
__func__, ret);
prtd->lsm_client->lab_started = false;
}
ret = msm_lsm_lab_buffer_alloc(prtd,
LAB_BUFFER_DEALLOC);
if (ret)
pr_err("%s: lab buffer de-alloc failed rc %d",
__func__, rc);
}
ret = q6lsm_stop(prtd->lsm_client, true);
if (!ret)
pr_debug("%s: LSM client session stopped %d\n",
__func__, ret);
prtd->lsm_client->started = false;
}
break;
}
case SNDRV_LSM_LAB_CONTROL: {
u32 *enable = NULL;
pr_debug("%s: ioctl %s\n", __func__, "SNDRV_LSM_LAB_CONTROL");
if (!arg) {
pr_err("%s: Invalid param arg for ioctl %s session %d\n",
__func__, "SNDRV_LSM_LAB_CONTROL",
prtd->lsm_client->session);
rc = -EINVAL;
break;
}
enable = (int *)arg;
if (!prtd->lsm_client->started) {
if (prtd->lsm_client->lab_enable == *enable) {
pr_info("%s: Lab for session %d already %s\n",
__func__, prtd->lsm_client->session,
((*enable) ? "enabled" : "disabled"));
rc = 0;
break;
}
rc = q6lsm_lab_control(prtd->lsm_client, *enable);
if (rc)
pr_err("%s: ioctl %s failed rc %d to %s lab for session %d\n",
__func__, "SNDRV_LAB_CONTROL", rc,
((*enable) ? "enable" : "disable"),
prtd->lsm_client->session);
else {
rc = msm_lsm_lab_buffer_alloc(prtd,
((*enable) ? LAB_BUFFER_ALLOC
: LAB_BUFFER_DEALLOC));
if (rc)
pr_err("%s: msm_lsm_lab_buffer_alloc failed rc %d for %s",
__func__, rc,
((*enable) ? "ALLOC" : "DEALLOC"));
if (!rc)
prtd->lsm_client->lab_enable = *enable;
}
} else {
pr_err("%s: ioctl %s issued after start", __func__
, "SNDRV_LSM_LAB_CONTROL");
rc = -EINVAL;
}
break;
}
case SNDRV_LSM_STOP_LAB:
if (prtd->lsm_client->lab_enable &&
prtd->lsm_client->lab_started) {
atomic_set(&prtd->read_abort, 1);
rc = q6lsm_stop_lab(prtd->lsm_client);
if (rc)
pr_err("%s: Lab stop failed for session %d rc %d\n"
, __func__, prtd->lsm_client->session, rc);
prtd->lsm_client->lab_started = false;
}
break;
default:
pr_debug("%s: Falling into default snd_lib_ioctl cmd 0x%x\n",
__func__, cmd);
rc = snd_pcm_lib_ioctl(substream, cmd, arg);
break;
}
if (!rc)
pr_debug("%s: leave (%d)\n", __func__, rc);
else
pr_err("%s: cmd 0x%x failed %d\n", __func__, cmd, rc);
return rc;
}
