diff mbox

[6/9] ASoC: amd: pcm callbacks modifications for bt i2s instance

Message ID 1518766434-7911-7-git-send-email-Vijendar.Mukunda@amd.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mukunda,Vijendar Feb. 16, 2018, 7:33 a.m. UTC 
modified prepare,trigger and pointer callbacks for bt i2s
instance.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
 sound/soc/amd/acp-pcm-dma.c | 231 +++++++++++++++++++++++++++++++++-----------
 1 file changed, 172 insertions(+), 59 deletions(-)
diff mbox

Patch

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index b1c1ff2..0e2dc05 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -947,23 +947,43 @@  static int acp_dma_hw_free(struct snd_pcm_substream *substream)
 	return snd_pcm_lib_free_pages(substream);
 }
 
-static u64 acp_get_byte_count(void __iomem *acp_mmio, int stream)
+static u64 acp_get_byte_count(void __iomem *acp_mmio, u16 instance, int stream)
 {
 	union acp_dma_count playback_dma_count;
 	union acp_dma_count capture_dma_count;
 	u64 bytescount = 0;
 
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		playback_dma_count.bcount.high = acp_reg_read(acp_mmio,
-					mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH);
-		playback_dma_count.bcount.low  = acp_reg_read(acp_mmio,
-					mmACP_I2S_TRANSMIT_BYTE_CNT_LOW);
+		switch (instance) {
+		case I2S_BT_INSTANCE:
+			playback_dma_count.bcount.high = acp_reg_read(acp_mmio,
+						mmACP_I2S_BT_TRANSMIT_BYTE_CNT_HIGH);
+			playback_dma_count.bcount.low  = acp_reg_read(acp_mmio,
+						mmACP_I2S_BT_TRANSMIT_BYTE_CNT_LOW);
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			playback_dma_count.bcount.high = acp_reg_read(acp_mmio,
+						mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH);
+			playback_dma_count.bcount.low  = acp_reg_read(acp_mmio,
+						mmACP_I2S_TRANSMIT_BYTE_CNT_LOW);
+		}
 		bytescount = playback_dma_count.bytescount;
 	} else {
-		capture_dma_count.bcount.high = acp_reg_read(acp_mmio,
-					mmACP_I2S_RECEIVED_BYTE_CNT_HIGH);
-		capture_dma_count.bcount.low  = acp_reg_read(acp_mmio,
-					mmACP_I2S_RECEIVED_BYTE_CNT_LOW);
+		switch (instance) {
+		case I2S_BT_INSTANCE:
+			capture_dma_count.bcount.high = acp_reg_read(acp_mmio,
+						mmACP_I2S_BT_RECEIVE_BYTE_CNT_HIGH);
+			capture_dma_count.bcount.low  = acp_reg_read(acp_mmio,
+						mmACP_I2S_BT_RECEIVE_BYTE_CNT_LOW);
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			capture_dma_count.bcount.high = acp_reg_read(acp_mmio,
+						mmACP_I2S_RECEIVED_BYTE_CNT_HIGH);
+			capture_dma_count.bcount.low  = acp_reg_read(acp_mmio,
+						mmACP_I2S_RECEIVED_BYTE_CNT_LOW);
+		}
 		bytescount = capture_dma_count.bytescount;
 	}
 	return bytescount;
@@ -982,14 +1002,32 @@  static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream)
 		return -EINVAL;
 
 	buffersize = frames_to_bytes(runtime, runtime->buffer_size);
-	bytescount = acp_get_byte_count(rtd->acp_mmio, substream->stream);
-
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		if (bytescount > rtd->i2ssp_renderbytescount)
-			bytescount = bytescount - rtd->i2ssp_renderbytescount;
+		bytescount = acp_get_byte_count(rtd->acp_mmio,
+					rtd->i2s_play_instance, substream->stream);
+		switch (rtd->i2s_play_instance) {
+		case I2S_BT_INSTANCE:
+			if (bytescount > rtd->i2sbt_renderbytescount)
+				bytescount = bytescount - rtd->i2sbt_renderbytescount;
+		break;
+		case I2S_SP_INSTANCE:
+		default:
+			if (bytescount > rtd->i2ssp_renderbytescount)
+				bytescount = bytescount - rtd->i2ssp_renderbytescount;
+		}
 	} else {
-		if (bytescount > rtd->i2ssp_capturebytescount)
-			bytescount = bytescount - rtd->i2ssp_capturebytescount;
+		bytescount = acp_get_byte_count(rtd->acp_mmio,
+					rtd->i2s_capture_instance, substream->stream);
+		switch (rtd->i2s_capture_instance) {
+		case I2S_BT_INSTANCE:
+			if (bytescount > rtd->i2sbt_capturebytescount)
+				bytescount = bytescount - rtd->i2sbt_capturebytescount;
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			if (bytescount > rtd->i2ssp_capturebytescount)
+				bytescount = bytescount - rtd->i2ssp_capturebytescount;
+		}
 	}
 	pos = do_div(bytescount, buffersize);
 	return bytes_to_frames(runtime, pos);
@@ -1003,25 +1041,54 @@  static int acp_dma_mmap(struct snd_pcm_substream *substream,
 
 static int acp_dma_prepare(struct snd_pcm_substream *substream)
 {
+	u16 start_dscr_idx;
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct audio_substream_data *rtd = runtime->private_data;
 
 	if (!rtd)
 		return -EINVAL;
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		config_acp_dma_channel(rtd->acp_mmio, SYSRAM_TO_ACP_CH_NUM,
-					PLAYBACK_START_DMA_DESCR_CH12,
-					NUM_DSCRS_PER_CHANNEL, 0);
-		config_acp_dma_channel(rtd->acp_mmio, ACP_TO_I2S_DMA_CH_NUM,
-					PLAYBACK_START_DMA_DESCR_CH13,
-					NUM_DSCRS_PER_CHANNEL, 0);
+		switch (rtd->i2s_play_instance) {
+		case I2S_BT_INSTANCE:
+			start_dscr_idx =  PLAYBACK_START_DMA_DESCR_CH8;
+			config_acp_dma_channel(rtd->acp_mmio, SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM,
+						start_dscr_idx,
+						NUM_DSCRS_PER_CHANNEL, 0);
+			config_acp_dma_channel(rtd->acp_mmio, ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM,
+						start_dscr_idx + 2,
+						NUM_DSCRS_PER_CHANNEL, 0);
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			start_dscr_idx = PLAYBACK_START_DMA_DESCR_CH12;
+			config_acp_dma_channel(rtd->acp_mmio, SYSRAM_TO_ACP_CH_NUM,
+						start_dscr_idx,
+						NUM_DSCRS_PER_CHANNEL, 0);
+			config_acp_dma_channel(rtd->acp_mmio, ACP_TO_I2S_DMA_CH_NUM,
+						start_dscr_idx + 2,
+						NUM_DSCRS_PER_CHANNEL, 0);
+		}
 	} else {
-		config_acp_dma_channel(rtd->acp_mmio, ACP_TO_SYSRAM_CH_NUM,
-					CAPTURE_START_DMA_DESCR_CH14,
-					NUM_DSCRS_PER_CHANNEL, 0);
-		config_acp_dma_channel(rtd->acp_mmio, I2S_TO_ACP_DMA_CH_NUM,
-					CAPTURE_START_DMA_DESCR_CH15,
-					NUM_DSCRS_PER_CHANNEL, 0);
+		switch (rtd->i2s_capture_instance) {
+		case I2S_BT_INSTANCE:
+			start_dscr_idx = CAPTURE_START_DMA_DESCR_CH10;
+			config_acp_dma_channel(rtd->acp_mmio, ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM,
+						start_dscr_idx,
+						NUM_DSCRS_PER_CHANNEL, 0);
+			config_acp_dma_channel(rtd->acp_mmio, I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM,
+						start_dscr_idx + 2,
+						NUM_DSCRS_PER_CHANNEL, 0);
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			start_dscr_idx = CAPTURE_START_DMA_DESCR_CH14;
+			config_acp_dma_channel(rtd->acp_mmio, ACP_TO_SYSRAM_CH_NUM,
+						start_dscr_idx,
+						NUM_DSCRS_PER_CHANNEL, 0);
+			config_acp_dma_channel(rtd->acp_mmio, I2S_TO_ACP_DMA_CH_NUM,
+						start_dscr_idx + 2,
+						NUM_DSCRS_PER_CHANNEL, 0);
+		}
 	}
 	return 0;
 }
@@ -1043,50 +1110,96 @@  static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 	case SNDRV_PCM_TRIGGER_RESUME:
-		bytescount = acp_get_byte_count(rtd->acp_mmio,
-						substream->stream);
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			if (rtd->i2ssp_renderbytescount == 0)
-				rtd->i2ssp_renderbytescount = bytescount;
-			acp_dma_start(rtd->acp_mmio,
-						SYSRAM_TO_ACP_CH_NUM, false);
-			while (acp_reg_read(rtd->acp_mmio, mmACP_DMA_CH_STS) &
-						BIT(SYSRAM_TO_ACP_CH_NUM)) {
-				if (!loops--) {
-					dev_err(component->dev,
-						"acp dma start timeout\n");
-					return -ETIMEDOUT;
+			bytescount = acp_get_byte_count(rtd->acp_mmio,
+					rtd->i2s_play_instance,
+					substream->stream);
+			switch (rtd->i2s_play_instance) {
+			case I2S_BT_INSTANCE:
+				if (rtd->i2sbt_renderbytescount == 0)
+					rtd->i2sbt_renderbytescount = bytescount;
+				acp_dma_start(rtd->acp_mmio,
+					SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM, false);
+				while (acp_reg_read(rtd->acp_mmio, mmACP_DMA_CH_STS) &
+					BIT(SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM)) {
+					if (!loops--) {
+						dev_err(component->dev,
+							"acp dma start timeout\n");
+						return -ETIMEDOUT;
+					}
+					cpu_relax();
 				}
-				cpu_relax();
-			}
-
-			acp_dma_start(rtd->acp_mmio,
+				acp_dma_start(rtd->acp_mmio,
+					ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM, true);
+				break;
+			case I2S_SP_INSTANCE:
+			default:
+				if (rtd->i2ssp_renderbytescount == 0)
+					rtd->i2ssp_renderbytescount = bytescount;
+				acp_dma_start(rtd->acp_mmio,
+					SYSRAM_TO_ACP_CH_NUM, false);
+				while (acp_reg_read(rtd->acp_mmio, mmACP_DMA_CH_STS) &
+					BIT(SYSRAM_TO_ACP_CH_NUM)) {
+					if (!loops--) {
+						dev_err(component->dev,
+							"acp dma start timeout\n");
+						return -ETIMEDOUT;
+					}
+					cpu_relax();
+				}
+				acp_dma_start(rtd->acp_mmio,
 					ACP_TO_I2S_DMA_CH_NUM, true);
-
+			}
 		} else {
-			if (rtd->i2ssp_capturebytescount == 0)
-				rtd->i2ssp_capturebytescount = bytescount;
-			acp_dma_start(rtd->acp_mmio,
-					    I2S_TO_ACP_DMA_CH_NUM, true);
+			bytescount = acp_get_byte_count(rtd->acp_mmio,
+						rtd->i2s_capture_instance,
+						substream->stream);
+			switch (rtd->i2s_capture_instance) {
+			case I2S_BT_INSTANCE:
+				if (rtd->i2sbt_capturebytescount == 0)
+					rtd->i2sbt_capturebytescount = 0;
+				acp_dma_start(rtd->acp_mmio,
+					I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM, true);
+				break;
+			case I2S_SP_INSTANCE:
+			default:
+				if (rtd->i2ssp_capturebytescount == 0)
+					rtd->i2ssp_capturebytescount = bytescount;
+				acp_dma_start(rtd->acp_mmio,
+					I2S_TO_ACP_DMA_CH_NUM, true);
+			}
 		}
 		ret = 0;
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
-		/* Need to stop only circular DMA channels :
-		 * ACP_TO_I2S_DMA_CH_NUM / I2S_TO_ACP_DMA_CH_NUM. Non-circular
-		 * channels will stopped automatically after its transfer
-		 * completes : SYSRAM_TO_ACP_CH_NUM / ACP_TO_SYSRAM_CH_NUM
-		 */
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			ret = acp_dma_stop(rtd->acp_mmio,
-					ACP_TO_I2S_DMA_CH_NUM);
-			rtd->i2ssp_renderbytescount = 0;
+			switch (rtd->i2s_play_instance) {
+			case I2S_BT_INSTANCE:
+				ret = acp_dma_stop(rtd->acp_mmio,
+						ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM);
+				rtd->i2sbt_renderbytescount = 0;
+				break;
+			case I2S_SP_INSTANCE:
+			default:
+				ret =  acp_dma_stop(rtd->acp_mmio,
+						ACP_TO_I2S_DMA_CH_NUM);
+				rtd->i2ssp_renderbytescount = 0;
+			}
 		} else {
-			ret = acp_dma_stop(rtd->acp_mmio,
-					I2S_TO_ACP_DMA_CH_NUM);
-			rtd->i2ssp_capturebytescount = 0;
+			switch (rtd->i2s_capture_instance) {
+			case I2S_BT_INSTANCE:
+				ret = acp_dma_stop(rtd->acp_mmio,
+						I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM);
+				rtd->i2sbt_capturebytescount = 0;
+				break;
+			case I2S_SP_INSTANCE:
+			default:
+				ret = acp_dma_stop(rtd->acp_mmio,
+						I2S_TO_ACP_DMA_CH_NUM);
+				rtd->i2ssp_capturebytescount = 0;
+			}
 		}
 		break;
 	default: