int afe_disable(u8 path_id)
{
struct msm_afe_state *afe = &the_afe_state;
int rc;
mutex_lock(&afe->lock);
BUG_ON(!afe->in_use);
MM_DBG("%s() path_id:%d codec state:%d\n", __func__, path_id,
afe->codec_config[GETDEVICEID(path_id)]);
afe_dsp_codec_config(afe, path_id, 0, NULL);
rc = wait_event_timeout(afe->wait,
!afe->codec_config[GETDEVICEID(path_id)],
msecs_to_jiffies(AFE_MAX_TIMEOUT));
if (!rc) {
MM_ERR("AFE failed to respond within %d ms\n", AFE_MAX_TIMEOUT);
rc = -1;
} else
rc = 0;
afe->in_use--;
MM_DBG("%s() in_use:%d \n", __func__, afe->in_use);
if (!afe->in_use) {
msm_adsp_disable(afe->mod);
msm_adsp_put(afe->mod);
afe->aux_conf_flag = 0;
afe->mod = NULL;
}
mutex_unlock(&afe->lock);
return rc;
}
int afe_enable(u8 path_id, struct msm_afe_config *config)
{
struct msm_afe_state *afe = &the_afe_state;
int rc;
if (path_id < AFE_HW_PATH_CODEC_RX ||
path_id > AFE_HW_PATH_MI2S_TX) {
MM_AUD_ERR("invalid path id %d\n", path_id);
return -EINVAL;
}
MM_AUD_INFO("%s: path %d\n", __func__, path_id);
mutex_lock(&afe->lock);
if (!afe->in_use && !afe->aux_conf_flag) {
/* enable afe */
rc = msm_adsp_get("AFETASK", &afe->mod, &afe->adsp_ops, afe);
if (rc < 0) {
MM_AUD_ERR("%s: failed to get AFETASK module\n",
__func__);
goto error_adsp_get;
}
rc = msm_adsp_enable(afe->mod);
if (rc < 0)
goto error_adsp_enable;
}
/* Issue codec config command */
afe_dsp_codec_config(afe, path_id, 1, config);
rc = wait_event_timeout(afe->wait,
afe->codec_config[GETDEVICEID(path_id)],
msecs_to_jiffies(AFE_MAX_TIMEOUT));
if (!rc) {
MM_AUD_ERR("AFE failed to respond within %d ms\n",
AFE_MAX_TIMEOUT);
rc = -ENODEV;
if (!afe->in_use) {
if (!afe->aux_conf_flag ||
(afe->aux_conf_flag &&
(path_id == AFE_HW_PATH_AUXPCM_RX ||
path_id == AFE_HW_PATH_AUXPCM_TX))) {
/* clean up if there is no client */
msm_adsp_disable(afe->mod);
msm_adsp_put(afe->mod);
afe->aux_conf_flag = 0;
}
}
} else {
rc = 0;
afe->in_use++;
}
mutex_unlock(&afe->lock);
return rc;
error_adsp_enable:
msm_adsp_put(afe->mod);
error_adsp_get:
mutex_unlock(&afe->lock);
return rc;
}
