[alsa-devel] [PATCH 4/8] ASoC: amd: Interrupt handler changes for BT I2S instance

[Vijendar Mukunda]

Interrupt handler changes for BT I2S instance.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
---
 sound/soc/amd/acp-pcm-dma.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index 6da54ab..9bd12bd 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -721,6 +721,24 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
 				acp_mmio, mmACP_EXTERNAL_INTR_STAT);
 	}
 
+	if ((intr_flag & BIT(ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM)) != 0) {
+		valid_irq = true;
+		if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_9) ==
+			PLAYBACK_START_DMA_DESCR_CH9)
+			dscr_idx = PLAYBACK_END_DMA_DESCR_CH8;
+		else
+			dscr_idx = PLAYBACK_START_DMA_DESCR_CH8;
+		config_acp_dma_channel(acp_mmio,
+					SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM,
+					dscr_idx, 1, 0);
+		acp_dma_start(acp_mmio, SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM,
+				false);
+		snd_pcm_period_elapsed(irq_data->play_i2sbt_stream);
+		acp_reg_write((intr_flag &
+				BIT(ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM)) << 16,
+				acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+	}
+
 	if ((intr_flag & BIT(I2S_TO_ACP_DMA_CH_NUM)) != 0) {
 		valid_irq = true;
 		if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_15) ==
@@ -743,6 +761,31 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
 				acp_mmio, mmACP_EXTERNAL_INTR_STAT);
 	}
 
+	if ((intr_flag & BIT(I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM)) != 0) {
+		valid_irq = true;
+		if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_11) ==
+			CAPTURE_START_DMA_DESCR_CH11)
+			dscr_idx = CAPTURE_END_DMA_DESCR_CH10;
+		else
+			dscr_idx = CAPTURE_START_DMA_DESCR_CH10;
+		config_acp_dma_channel(acp_mmio,
+					ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM,
+					dscr_idx, 1, 0);
+		acp_dma_start(acp_mmio, ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM,
+				false);
+		acp_reg_write((intr_flag &
+				BIT(I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM)) << 16,
+				acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+	}
+
+	if ((intr_flag & BIT(ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM)) != 0) {
+		valid_irq = true;
+		snd_pcm_period_elapsed(irq_data->capture_i2sbt_stream);
+		acp_reg_write((intr_flag &
+				BIT(ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM)) << 16,
+				acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+	}
+
 	if (valid_irq)
 		return IRQ_HANDLED;
 	else
-- 
2.7.4