ASoC: msm-cpe: Add timestamp support for lsm event status

Add timestamp support in cases where event status requires
timestamp corresponding to detection.
Timestamp mode is not supported currently in CPE SVA.

Change-Id: I157c77bba5aa2b9d0cc9dcbdfaba405554301611
Signed-off-by: Chaithanya Krishna Bacharaju <chaithan@codeaurora.org>
Signed-off-by: Revathi Uddaraju <revathiu@codeaurora.org>

1 files changed, 208 insertions, 26 deletions

diff --git a/sound/soc/msm/msm-cpe-lsm.c b/sound/soc/msm/msm-cpe-lsm.c
index dc30c652182b..b2008d6da2a1 100644
--- a/sound/soc/msm/msm-cpe-lsm.c
+++ b/sound/soc/msm/msm-cpe-lsm.c
@@ -1049,7 +1049,6 @@ static int msm_cpe_lsm_ioctl_shared(struct snd_pcm_substream *substream,
 	struct cpe_lsm_lab *lab_d = &lsm_d->lab;
 	struct snd_dma_buffer *dma_buf = &substream->dma_buffer;
 	struct msm_slim_dma_data *dma_data = NULL;
-	struct snd_lsm_event_status *user;
 	struct snd_lsm_detection_params det_params;
 	int rc = 0;
 
@@ -1318,11 +1317,20 @@ static int msm_cpe_lsm_ioctl_shared(struct snd_pcm_substream *substream,
 		break;
 
 	case SNDRV_LSM_EVENT_STATUS:
+	case SNDRV_LSM_EVENT_STATUS_V3: {
+		struct snd_lsm_event_status *user;
+		struct snd_lsm_event_status_v3 *user_v3;
+
 		dev_dbg(rtd->dev,
 			"%s: %s\n",
-			__func__, "SNDRV_LSM_EVENT_STATUS");
-
-		user = arg;
+			__func__, "SNDRV_LSM_EVENT_STATUS(_V3)");
+		if (!arg) {
+			dev_err(rtd->dev,
+				"%s: Invalid argument to ioctl %s\n",
+				__func__,
+				"SNDRV_LSM_EVENT_STATUS(_V3)");
+			return -EINVAL;
+		}
 
 		/*
 		 * Release the api lock before wait to allow
@@ -1343,31 +1351,62 @@ static int msm_cpe_lsm_ioctl_shared(struct snd_pcm_substream *substream,
 			if (atomic_read(&lsm_d->event_avail) == 1) {
 				rc = 0;
 				atomic_set(&lsm_d->event_avail, 0);
-				if (lsm_d->ev_det_pld_size >
-					user->payload_size) {
-					dev_err(rtd->dev,
-						"%s: avail pld_bytes = %u, needed = %u\n",
-						__func__,
-						user->payload_size,
-						lsm_d->ev_det_pld_size);
-					return -EINVAL;
-				}
-
-				user->status = lsm_d->ev_det_status;
-				user->payload_size = lsm_d->ev_det_pld_size;
-
-				memcpy(user->payload,
-				       lsm_d->ev_det_payload,
-				       lsm_d->ev_det_pld_size);
 
+				if (cmd == SNDRV_LSM_EVENT_STATUS) {
+					user = arg;
+					if (lsm_d->ev_det_pld_size >
+						user->payload_size) {
+						dev_err(rtd->dev,
+							"%s: avail pld_bytes = %u, needed = %u\n",
+							__func__,
+							user->payload_size,
+							lsm_d->ev_det_pld_size);
+						return -EINVAL;
+					}
+
+					user->status = lsm_d->ev_det_status;
+					user->payload_size =
+							lsm_d->ev_det_pld_size;
+					memcpy(user->payload,
+					       lsm_d->ev_det_payload,
+					       lsm_d->ev_det_pld_size);
+				} else {
+					user_v3 = arg;
+					if (lsm_d->ev_det_pld_size >
+						user_v3->payload_size) {
+						dev_err(rtd->dev,
+							"%s: avail pld_bytes = %u, needed = %u\n",
+							__func__,
+							user_v3->payload_size,
+							lsm_d->ev_det_pld_size);
+						return -EINVAL;
+					}
+					/* event status timestamp not supported
+					 * on CPE mode. Set msw and lsw to 0.
+					 */
+					user_v3->timestamp_lsw = 0;
+					user_v3->timestamp_msw = 0;
+					user_v3->status = lsm_d->ev_det_status;
+					user_v3->payload_size =
+							lsm_d->ev_det_pld_size;
+					memcpy(user_v3->payload,
+					       lsm_d->ev_det_payload,
+					       lsm_d->ev_det_pld_size);
+				}
 			} else if (atomic_read(&lsm_d->event_stop) == 1) {
 				dev_dbg(rtd->dev,
 					"%s: wait_aborted\n", __func__);
-				user->payload_size = 0;
+				if (cmd == SNDRV_LSM_EVENT_STATUS) {
+					user = arg;
+					user->payload_size = 0;
+				} else {
+					user_v3 = arg;
+					user_v3->payload_size = 0;
+				}
 				rc = 0;
 			}
 		}
-
+	}
 		break;
 
 	case SNDRV_LSM_ABORT_EVENT:
@@ -1524,7 +1563,7 @@ static int msm_cpe_lsm_ioctl_shared(struct snd_pcm_substream *substream,
 }
 
 static int msm_cpe_lsm_lab_start(struct snd_pcm_substream *substream,
-		struct snd_lsm_event_status *event_status)
+		u16 event_det_status)
 {
 	struct snd_soc_pcm_runtime *rtd;
 	struct cpe_lsm_data *lsm_d = NULL;
@@ -1577,7 +1616,7 @@ static int msm_cpe_lsm_lab_start(struct snd_pcm_substream *substream,
 	reinit_completion(&lab_d->thread_complete);
 
 	if (session->lab_enable &&
-	    event_status->status ==
+	    event_det_status ==
 	    LSM_VOICE_WAKEUP_STATUS_DETECTED) {
 		out_port = &session->afe_out_port_cfg;
 		out_port->port_id = session->afe_out_port_id;
@@ -2181,7 +2220,60 @@ static int msm_cpe_lsm_ioctl(struct snd_pcm_substream *substream,
 			goto done;
 		}
 
-		msm_cpe_lsm_lab_start(substream, event_status);
+		msm_cpe_lsm_lab_start(substream, event_status->status);
+		msm_cpe_process_event_status_done(lsm_d);
+		kfree(event_status);
+	}
+		break;
+	case SNDRV_LSM_EVENT_STATUS_V3: {
+		struct snd_lsm_event_status_v3 u_event_status;
+		struct snd_lsm_event_status_v3 *event_status = NULL;
+		int u_pld_size = 0;
+
+		if (copy_from_user(&u_event_status, (void *)arg,
+				   sizeof(struct snd_lsm_event_status_v3))) {
+			dev_err(rtd->dev,
+				"%s: event status copy from user failed, size %zd\n",
+				__func__,
+				sizeof(struct snd_lsm_event_status_v3));
+			err = -EFAULT;
+			goto done;
+		}
+
+		if (u_event_status.payload_size >
+		    LISTEN_MAX_STATUS_PAYLOAD_SIZE) {
+			dev_err(rtd->dev,
+				"%s: payload_size %d is invalid, max allowed = %d\n",
+				__func__, u_event_status.payload_size,
+				LISTEN_MAX_STATUS_PAYLOAD_SIZE);
+			err = -EINVAL;
+			goto done;
+		}
+
+		u_pld_size = sizeof(struct snd_lsm_event_status_v3) +
+				u_event_status.payload_size;
+
+		event_status = kzalloc(u_pld_size, GFP_KERNEL);
+		if (!event_status) {
+			err = -ENOMEM;
+			goto done;
+		} else {
+			event_status->payload_size =
+				u_event_status.payload_size;
+			err = msm_cpe_lsm_ioctl_shared(substream,
+						       cmd, event_status);
+		}
+
+		if (!err  && copy_to_user(arg, event_status, u_pld_size)) {
+			dev_err(rtd->dev,
+				"%s: copy to user failed\n",
+				__func__);
+			kfree(event_status);
+			err = -EFAULT;
+			goto done;
+		}
+
+		msm_cpe_lsm_lab_start(substream, event_status->status);
 		msm_cpe_process_event_status_done(lsm_d);
 		kfree(event_status);
 	}
@@ -2494,7 +2586,97 @@ static int msm_cpe_lsm_ioctl_compat(struct snd_pcm_substream *substream,
 			goto done;
 		}
 
-		msm_cpe_lsm_lab_start(substream, event_status);
+		msm_cpe_lsm_lab_start(substream, event_status->status);
+		msm_cpe_process_event_status_done(lsm_d);
+		kfree(event_status);
+		kfree(udata_32);
+	}
+		break;
+	case SNDRV_LSM_EVENT_STATUS_V3: {
+		struct snd_lsm_event_status_v3 *event_status = NULL;
+		struct snd_lsm_event_status_v3 u_event_status32;
+		struct snd_lsm_event_status_v3 *udata_32 = NULL;
+		int u_pld_size = 0;
+
+		dev_dbg(rtd->dev,
+			"%s: ioctl %s\n", __func__,
+			"SNDRV_LSM_EVENT_STATUS_V3_32");
+
+		if (copy_from_user(&u_event_status32, (void *)arg,
+				   sizeof(struct snd_lsm_event_status_v3))) {
+			dev_err(rtd->dev,
+				"%s: event status copy from user failed, size %zd\n",
+				__func__,
+				sizeof(struct snd_lsm_event_status_v3));
+			err = -EFAULT;
+			goto done;
+		}
+
+		if (u_event_status32.payload_size >
+		   LISTEN_MAX_STATUS_PAYLOAD_SIZE) {
+			dev_err(rtd->dev,
+				"%s: payload_size %d is invalid, max allowed = %d\n",
+				__func__, u_event_status32.payload_size,
+				LISTEN_MAX_STATUS_PAYLOAD_SIZE);
+			err = -EINVAL;
+			goto done;
+		}
+
+		u_pld_size = sizeof(struct snd_lsm_event_status_v3) +
+				u_event_status32.payload_size;
+		event_status = kzalloc(u_pld_size, GFP_KERNEL);
+		if (!event_status) {
+			dev_err(rtd->dev,
+				"%s: No memory for event status\n",
+				__func__);
+			err = -ENOMEM;
+			goto done;
+		} else {
+			event_status->payload_size =
+				u_event_status32.payload_size;
+			err = msm_cpe_lsm_ioctl_shared(substream,
+						       cmd, event_status);
+			if (err)
+				dev_err(rtd->dev,
+					"%s: %s failed, error = %d\n",
+					__func__,
+					"SNDRV_LSM_EVENT_STATUS_V3_32",
+					err);
+		}
+
+		if (!err) {
+			udata_32 = kzalloc(u_pld_size, GFP_KERNEL);
+			if (!udata_32) {
+				dev_err(rtd->dev,
+					"%s: nomem for udata\n",
+					__func__);
+				err = -EFAULT;
+			} else {
+				udata_32->timestamp_lsw =
+					event_status->timestamp_lsw;
+				udata_32->timestamp_msw =
+					event_status->timestamp_msw;
+				udata_32->status = event_status->status;
+				udata_32->payload_size =
+					event_status->payload_size;
+				memcpy(udata_32->payload,
+				       event_status->payload,
+				       u_pld_size);
+			}
+		}
+
+		if (!err  && copy_to_user(arg, udata_32,
+					  u_pld_size)) {
+			dev_err(rtd->dev,
+				"%s: copy to user failed\n",
+				__func__);
+			kfree(event_status);
+			kfree(udata_32);
+			err = -EFAULT;
+			goto done;
+		}
+
+		msm_cpe_lsm_lab_start(substream, event_status->status);
 		msm_cpe_process_event_status_done(lsm_d);
 		kfree(event_status);
 		kfree(udata_32);