[PATCH v2 2/3] ASoC: amd: dma driver changes for BT I2S instance
From: Vijendar Mukunda
Date: Wed Apr 18 2018 - 07:03:04 EST
With in ACP, There are three I2S controllers can be
configured/enabled ( I2S SP, I2S MICSP, I2S BT).
Default enabled I2S controller instance is I2S SP.
This patch provides required changes to support I2S BT
controller Instance.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx>
---
v1->v2: defined i2s instance macros in acp header file
sound/soc/amd/Kconfig | 1 +
sound/soc/amd/acp-pcm-dma.c | 388 +++++++++++++++++++++++++++-----------------
sound/soc/amd/acp.h | 67 +++++++-
3 files changed, 298 insertions(+), 158 deletions(-)
diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig
index 6cbf9cf..6b7c620 100644
--- a/sound/soc/amd/Kconfig
+++ b/sound/soc/amd/Kconfig
@@ -1,5 +1,6 @@
config SND_SOC_AMD_ACP
tristate "AMD Audio Coprocessor support"
+ select SND_DESIGNWARE_PCM
help
This option enables ACP DMA support on AMD platform.
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index 5ffe2ef..7c392fe 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -23,6 +23,8 @@
#include <drm/amd_asic_type.h>
#include "acp.h"
+#include "../dwc/local.h"
+
#define DRV_NAME "acp_audio_dma"
#define PLAYBACK_MIN_NUM_PERIODS 2
@@ -37,13 +39,14 @@
#define MAX_BUFFER (PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
#define MIN_BUFFER MAX_BUFFER
-#define ST_PLAYBACK_MAX_PERIOD_SIZE 8192
+#define ST_PLAYBACK_MAX_PERIOD_SIZE 4096
#define ST_CAPTURE_MAX_PERIOD_SIZE ST_PLAYBACK_MAX_PERIOD_SIZE
#define ST_MAX_BUFFER (ST_PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
#define ST_MIN_BUFFER ST_MAX_BUFFER
#define DRV_NAME "acp_audio_dma"
+
static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP |
@@ -317,54 +320,21 @@ static void acp_pte_config(void __iomem *acp_mmio, struct page *pg,
}
static void config_acp_dma(void __iomem *acp_mmio,
- struct audio_substream_data *audio_config,
+ struct audio_substream_data *rtd,
u32 asic_type)
{
- u32 pte_offset, sram_bank;
- u16 ch1, ch2, destination, dma_dscr_idx;
-
- if (audio_config->direction == SNDRV_PCM_STREAM_PLAYBACK) {
- pte_offset = ACP_PLAYBACK_PTE_OFFSET;
- ch1 = SYSRAM_TO_ACP_CH_NUM;
- ch2 = ACP_TO_I2S_DMA_CH_NUM;
- sram_bank = ACP_SHARED_RAM_BANK_1_ADDRESS;
- destination = TO_ACP_I2S_1;
-
- } else {
- pte_offset = ACP_CAPTURE_PTE_OFFSET;
- ch1 = SYSRAM_TO_ACP_CH_NUM;
- ch2 = ACP_TO_I2S_DMA_CH_NUM;
- switch (asic_type) {
- case CHIP_STONEY:
- sram_bank = ACP_SHARED_RAM_BANK_3_ADDRESS;
- break;
- default:
- sram_bank = ACP_SHARED_RAM_BANK_5_ADDRESS;
- }
- destination = FROM_ACP_I2S_1;
- }
-
- acp_pte_config(acp_mmio, audio_config->pg, audio_config->num_of_pages,
- pte_offset);
- if (audio_config->direction == SNDRV_PCM_STREAM_PLAYBACK)
- dma_dscr_idx = PLAYBACK_START_DMA_DESCR_CH12;
- else
- dma_dscr_idx = CAPTURE_START_DMA_DESCR_CH14;
-
+ acp_pte_config(acp_mmio, rtd->pg, rtd->num_of_pages,
+ rtd->pte_offset);
/* Configure System memory <-> ACP SRAM DMA descriptors */
- set_acp_sysmem_dma_descriptors(acp_mmio, audio_config->size,
- audio_config->direction, pte_offset, ch1,
- sram_bank, dma_dscr_idx, asic_type);
-
- if (audio_config->direction == SNDRV_PCM_STREAM_PLAYBACK)
- dma_dscr_idx = PLAYBACK_START_DMA_DESCR_CH13;
- else
- dma_dscr_idx = CAPTURE_START_DMA_DESCR_CH15;
+ set_acp_sysmem_dma_descriptors(acp_mmio, rtd->size,
+ rtd->direction, rtd->pte_offset,
+ rtd->ch1, rtd->sram_bank,
+ rtd->dma_dscr_idx_1, asic_type);
/* Configure ACP SRAM <-> I2S DMA descriptors */
- set_acp_to_i2s_dma_descriptors(acp_mmio, audio_config->size,
- audio_config->direction, sram_bank,
- destination, ch2, dma_dscr_idx,
- asic_type);
+ set_acp_to_i2s_dma_descriptors(acp_mmio, rtd->size,
+ rtd->direction, rtd->sram_bank,
+ rtd->destination, rtd->ch2,
+ rtd->dma_dscr_idx_2, asic_type);
}
/* Start a given DMA channel transfer */
@@ -390,6 +360,9 @@ static void acp_dma_start(void __iomem *acp_mmio,
case ACP_TO_I2S_DMA_CH_NUM:
case ACP_TO_SYSRAM_CH_NUM:
case I2S_TO_ACP_DMA_CH_NUM:
+ case ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM:
+ case ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM:
+ case I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM:
dma_ctrl |= ACP_DMA_CNTL_0__DMAChIOCEn_MASK;
break;
default:
@@ -670,6 +643,24 @@ 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) ==
@@ -692,6 +683,31 @@ 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
@@ -707,6 +723,7 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd,
DRV_NAME);
struct audio_drv_data *intr_data = dev_get_drvdata(component->dev);
+ struct dw_i2s_dev *dev = snd_soc_dai_get_drvdata(prtd->cpu_dai);
struct audio_substream_data *adata =
kzalloc(sizeof(struct audio_substream_data), GFP_KERNEL);
if (!adata)
@@ -720,6 +737,8 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
default:
runtime->hw = acp_pcm_hardware_playback;
}
+ adata->i2s_play_instance = dev->i2s_instance;
+ adata->bytescount = 0;
} else {
switch (intr_data->asic_type) {
case CHIP_STONEY:
@@ -728,6 +747,8 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
default:
runtime->hw = acp_pcm_hardware_capture;
}
+ adata->i2s_capture_instance = dev->i2s_instance;
+ adata->bytescount = 0;
}
ret = snd_pcm_hw_constraint_integer(runtime,
@@ -747,11 +768,46 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
* This enablement is not required for another stream, if current
* stream is not closed
*/
- if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_stream)
+ if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_stream &&
+ !intr_data->play_i2sbt_stream && !intr_data->capture_i2sbt_stream)
acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- intr_data->play_i2ssp_stream = substream;
+ switch (adata->i2s_play_instance) {
+ case I2S_BT_INSTANCE:
+ adata->pte_offset = ACP_ST_BT_PLAYBACK_PTE_OFFSET;
+ adata->ch1 = SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM;
+ adata->ch2 = ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM;
+ adata->sram_bank = ACP_SRAM_BANK_3_ADDRESS;
+ adata->destination = TO_BLUETOOTH;
+ adata->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH8;
+ adata->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH9;
+ adata->byte_cnt_high =
+ mmACP_I2S_BT_TRANSMIT_BYTE_CNT_HIGH;
+ adata->byte_cnt_low =
+ mmACP_I2S_BT_TRANSMIT_BYTE_CNT_LOW;
+ intr_data->play_i2sbt_stream = substream;
+ break;
+ case I2S_SP_INSTANCE:
+ default:
+ switch (intr_data->asic_type) {
+ case CHIP_STONEY:
+ adata->pte_offset = ACP_ST_PLAYBACK_PTE_OFFSET;
+ break;
+ default:
+ adata->pte_offset = ACP_PLAYBACK_PTE_OFFSET;
+ }
+ adata->ch1 = SYSRAM_TO_ACP_CH_NUM;
+ adata->ch2 = ACP_TO_I2S_DMA_CH_NUM;
+ adata->sram_bank = ACP_SRAM_BANK_1_ADDRESS;
+ adata->destination = TO_ACP_I2S_1;
+ adata->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH12;
+ adata->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH13;
+ adata->byte_cnt_high = mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH;
+ adata->byte_cnt_low = mmACP_I2S_TRANSMIT_BYTE_CNT_LOW;
+ intr_data->play_i2ssp_stream = substream;
+ break;
+ }
/*
* For Stoney, Memory gating is disabled,i.e SRAM Banks
* won't be turned off. The default state for SRAM banks is ON.
@@ -763,7 +819,40 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
bank, true);
}
} else {
- intr_data->capture_i2ssp_stream = substream;
+ switch (adata->i2s_capture_instance) {
+ case I2S_BT_INSTANCE:
+ adata->pte_offset = ACP_ST_BT_CAPTURE_PTE_OFFSET;
+ adata->ch1 = ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM;
+ adata->ch2 = I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM;
+ adata->sram_bank = ACP_SRAM_BANK_4_ADDRESS;
+ adata->destination = FROM_BLUETOOTH;
+ adata->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH10;
+ adata->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH11;
+ adata->byte_cnt_high =
+ mmACP_I2S_BT_RECEIVE_BYTE_CNT_HIGH;
+ adata->byte_cnt_low =
+ mmACP_I2S_BT_RECEIVE_BYTE_CNT_LOW;
+ intr_data->capture_i2sbt_stream = substream;
+ break;
+ case I2S_SP_INSTANCE:
+ default:
+ adata->pte_offset = ACP_CAPTURE_PTE_OFFSET;
+ adata->ch1 = SYSRAM_TO_ACP_CH_NUM;
+ adata->ch2 = ACP_TO_I2S_DMA_CH_NUM;
+ switch (intr_data->asic_type) {
+ case CHIP_STONEY:
+ adata->sram_bank = ACP_SRAM_BANK_2_ADDRESS;
+ break;
+ default:
+ adata->sram_bank = ACP_SRAM_BANK_5_ADDRESS;
+ }
+ adata->destination = FROM_ACP_I2S_1;
+ adata->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH14;
+ adata->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH15;
+ adata->byte_cnt_high = mmACP_I2S_RECEIVED_BYTE_CNT_HIGH;
+ adata->byte_cnt_low = mmACP_I2S_RECEIVED_BYTE_CNT_LOW;
+ intr_data->capture_i2ssp_stream = substream;
+ }
if (intr_data->asic_type != CHIP_STONEY) {
for (bank = 5; bank <= 8; bank++)
acp_set_sram_bank_state(intr_data->acp_mmio,
@@ -797,10 +886,25 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
if (adata->asic_type == CHIP_STONEY) {
val = acp_reg_read(adata->acp_mmio,
mmACP_I2S_16BIT_RESOLUTION_EN);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- val |= ACP_I2S_SP_16BIT_RESOLUTION_EN;
- else
- val |= ACP_I2S_MIC_16BIT_RESOLUTION_EN;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ switch (rtd->i2s_play_instance) {
+ case I2S_BT_INSTANCE:
+ val |= ACP_I2S_BT_16BIT_RESOLUTION_EN;
+ break;
+ case I2S_SP_INSTANCE:
+ default:
+ val |= ACP_I2S_SP_16BIT_RESOLUTION_EN;
+ }
+ } else {
+ switch (rtd->i2s_capture_instance) {
+ case I2S_BT_INSTANCE:
+ val |= ACP_I2S_BT_16BIT_RESOLUTION_EN;
+ break;
+ case I2S_SP_INSTANCE:
+ default:
+ val |= ACP_I2S_MIC_16BIT_RESOLUTION_EN;
+ }
+ }
acp_reg_write(val, adata->acp_mmio,
mmACP_I2S_16BIT_RESOLUTION_EN);
}
@@ -837,26 +941,15 @@ 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(struct audio_substream_data *rtd)
{
- union acp_dma_count playback_dma_count;
- union acp_dma_count capture_dma_count;
- u64 bytescount = 0;
+ union acp_dma_count byte_count;
- 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);
- 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);
- bytescount = capture_dma_count.bytescount;
- }
- return bytescount;
+ byte_count.bcount.high = acp_reg_read(rtd->acp_mmio,
+ rtd->byte_cnt_high);
+ byte_count.bcount.low = acp_reg_read(rtd->acp_mmio,
+ rtd->byte_cnt_low);
+ return byte_count.bytescount;
}
static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream)
@@ -872,15 +965,10 @@ 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);
+ bytescount = acp_get_byte_count(rtd);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- if (bytescount > rtd->i2ssp_renderbytescount)
- bytescount = bytescount - rtd->i2ssp_renderbytescount;
- } else {
- if (bytescount > rtd->i2ssp_capturebytescount)
- bytescount = bytescount - rtd->i2ssp_capturebytescount;
- }
+ if (bytescount > rtd->bytescount)
+ bytescount = bytescount - rtd->bytescount;
pos = do_div(bytescount, buffersize);
return bytes_to_frames(runtime, pos);
}
@@ -898,21 +986,14 @@ static int acp_dma_prepare(struct snd_pcm_substream *substream)
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);
- } 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);
- }
+ config_acp_dma_channel(rtd->acp_mmio,
+ rtd->ch1,
+ rtd->dma_dscr_idx_1,
+ NUM_DSCRS_PER_CHANNEL, 0);
+ config_acp_dma_channel(rtd->acp_mmio,
+ rtd->ch2,
+ rtd->dma_dscr_idx_2,
+ NUM_DSCRS_PER_CHANNEL, 0);
return 0;
}
@@ -934,15 +1015,13 @@ 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);
+ bytescount = acp_get_byte_count(rtd);
+ if (rtd->bytescount == 0)
+ rtd->bytescount = bytescount;
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);
+ acp_dma_start(rtd->acp_mmio, rtd->ch1, false);
while (acp_reg_read(rtd->acp_mmio, mmACP_DMA_CH_STS) &
- BIT(SYSRAM_TO_ACP_CH_NUM)) {
+ BIT(rtd->ch1)) {
if (!loops--) {
dev_err(component->dev,
"acp dma start timeout\n");
@@ -950,40 +1029,21 @@ static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
}
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);
}
+ acp_dma_start(rtd->acp_mmio, rtd->ch2, 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,
- SYSRAM_TO_ACP_CH_NUM);
- ret = acp_dma_stop(rtd->acp_mmio,
- ACP_TO_I2S_DMA_CH_NUM);
- rtd->i2ssp_renderbytescount = 0;
+ acp_dma_stop(rtd->acp_mmio, rtd->ch1);
+ ret = acp_dma_stop(rtd->acp_mmio, rtd->ch2);
} else {
- ret = acp_dma_stop(rtd->acp_mmio,
- I2S_TO_ACP_DMA_CH_NUM);
- ret = acp_dma_stop(rtd->acp_mmio,
- ACP_TO_SYSRAM_CH_NUM);
- rtd->i2ssp_capturebytescount = 0;
+ acp_dma_stop(rtd->acp_mmio, rtd->ch2);
+ ret = acp_dma_stop(rtd->acp_mmio, rtd->ch1);
}
+ rtd->bytescount = 0;
break;
default:
ret = -EINVAL;
@@ -1028,27 +1088,40 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
DRV_NAME);
struct audio_drv_data *adata = dev_get_drvdata(component->dev);
- kfree(rtd);
-
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- adata->play_i2ssp_stream = NULL;
- /*
- * For Stoney, Memory gating is disabled,i.e SRAM Banks
- * won't be turned off. The default state for SRAM banks is ON.
- * Setting SRAM bank state code skipped for STONEY platform.
- * added condition checks for Carrizo platform only
- */
- if (adata->asic_type != CHIP_STONEY) {
- for (bank = 1; bank <= 4; bank++)
- acp_set_sram_bank_state(adata->acp_mmio, bank,
- false);
+ switch (rtd->i2s_play_instance) {
+ case I2S_BT_INSTANCE:
+ adata->play_i2sbt_stream = NULL;
+ break;
+ case I2S_SP_INSTANCE:
+ default:
+ adata->play_i2ssp_stream = NULL;
+ /*
+ * For Stoney, Memory gating is disabled,i.e SRAM Banks
+ * won't be turned off. The default state for SRAM banks
+ * is ON.Setting SRAM bank state code skipped for STONEY
+ * platform. Added condition checks for Carrizo platform
+ * only.
+ */
+ if (adata->asic_type != CHIP_STONEY) {
+ for (bank = 1; bank <= 4; bank++)
+ acp_set_sram_bank_state(adata->acp_mmio,
+ bank, false);
+ }
}
} else {
- adata->capture_i2ssp_stream = NULL;
- if (adata->asic_type != CHIP_STONEY) {
- for (bank = 5; bank <= 8; bank++)
- acp_set_sram_bank_state(adata->acp_mmio, bank,
- false);
+ switch (rtd->i2s_capture_instance) {
+ case I2S_BT_INSTANCE:
+ adata->capture_i2sbt_stream = NULL;
+ break;
+ case I2S_SP_INSTANCE:
+ default:
+ adata->capture_i2ssp_stream = NULL;
+ if (adata->asic_type != CHIP_STONEY) {
+ for (bank = 5; bank <= 8; bank++)
+ acp_set_sram_bank_state(adata->acp_mmio,
+ bank, false);
+ }
}
}
@@ -1056,8 +1129,10 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
* Disable ACP irq, when the current stream is being closed and
* another stream is also not active.
*/
- if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream)
+ if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream &&
+ !adata->play_i2sbt_stream && !adata->capture_i2sbt_stream)
acp_reg_write(0, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
+ kfree(rtd);
return 0;
}
@@ -1110,6 +1185,8 @@ static int acp_audio_probe(struct platform_device *pdev)
audio_drv_data->play_i2ssp_stream = NULL;
audio_drv_data->capture_i2ssp_stream = NULL;
+ audio_drv_data->play_i2sbt_stream = NULL;
+ audio_drv_data->capture_i2sbt_stream = NULL;
audio_drv_data->asic_type = *pdata;
@@ -1166,6 +1243,7 @@ static int acp_pcm_resume(struct device *dev)
{
u16 bank;
int status;
+ struct audio_substream_data *rtd;
struct audio_drv_data *adata = dev_get_drvdata(dev);
status = acp_init(adata->acp_mmio, adata->asic_type);
@@ -1185,9 +1263,8 @@ static int acp_pcm_resume(struct device *dev)
acp_set_sram_bank_state(adata->acp_mmio, bank,
true);
}
- config_acp_dma(adata->acp_mmio,
- adata->play_i2ssp_stream->runtime->private_data,
- adata->asic_type);
+ rtd = adata->play_i2ssp_stream->runtime->private_data;
+ config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
}
if (adata->capture_i2ssp_stream &&
adata->capture_i2ssp_stream->runtime) {
@@ -1196,9 +1273,20 @@ static int acp_pcm_resume(struct device *dev)
acp_set_sram_bank_state(adata->acp_mmio, bank,
true);
}
- config_acp_dma(adata->acp_mmio,
- adata->capture_i2ssp_stream->runtime->private_data,
- adata->asic_type);
+ rtd = adata->capture_i2ssp_stream->runtime->private_data;
+ config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
+ }
+ if (adata->asic_type != CHIP_CARRIZO) {
+ if (adata->play_i2sbt_stream &&
+ adata->play_i2sbt_stream->runtime) {
+ rtd = adata->play_i2sbt_stream->runtime->private_data;
+ config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
+ }
+ if (adata->capture_i2sbt_stream &&
+ adata->capture_i2sbt_stream->runtime) {
+ rtd = adata->capture_i2sbt_stream->runtime->private_data;
+ config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
+ }
}
acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
return 0;
diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h
index 0e6089b..95c39a3 100644
--- a/sound/soc/amd/acp.h
+++ b/sound/soc/amd/acp.h
@@ -10,17 +10,30 @@
#define ACP_PLAYBACK_PTE_OFFSET 10
#define ACP_CAPTURE_PTE_OFFSET 0
+/* Playback and Capture Offset for Stoney */
+#define ACP_ST_PLAYBACK_PTE_OFFSET 0x04
+#define ACP_ST_CAPTURE_PTE_OFFSET 0x00
+#define ACP_ST_BT_PLAYBACK_PTE_OFFSET 0x08
+#define ACP_ST_BT_CAPTURE_PTE_OFFSET 0x0c
+
#define ACP_GARLIC_CNTL_DEFAULT 0x00000FB4
#define ACP_ONION_CNTL_DEFAULT 0x00000FB4
#define ACP_PHYSICAL_BASE 0x14000
-/* Playback SRAM address (as a destination in dma descriptor) */
-#define ACP_SHARED_RAM_BANK_1_ADDRESS 0x4002000
-
-/* Capture SRAM address (as a source in dma descriptor) */
-#define ACP_SHARED_RAM_BANK_5_ADDRESS 0x400A000
-#define ACP_SHARED_RAM_BANK_3_ADDRESS 0x4006000
+/*
+ * In case of I2S SP controller instance, Stoney uses SRAM bank 1 for
+ * playback and SRAM Bank 2 for capture where as in case of BT I2S
+ * Instance, Stoney uses SRAM Bank 3 for playback & SRAM Bank 4 will
+ * be used for capture. Carrizo uses I2S SP controller instance. SRAM Banks
+ * 1, 2, 3, 4 will be used for playback & SRAM Banks 5, 6, 7, 8 will be used
+ * for capture scenario.
+ */
+#define ACP_SRAM_BANK_1_ADDRESS 0x4002000
+#define ACP_SRAM_BANK_2_ADDRESS 0x4004000
+#define ACP_SRAM_BANK_3_ADDRESS 0x4006000
+#define ACP_SRAM_BANK_4_ADDRESS 0x4008000
+#define ACP_SRAM_BANK_5_ADDRESS 0x400A000
#define ACP_DMA_RESET_TIME 10000
#define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
@@ -35,8 +48,13 @@
#define TO_ACP_I2S_1 0x2
#define TO_ACP_I2S_2 0x4
+#define TO_BLUETOOTH 0x3
#define FROM_ACP_I2S_1 0xa
#define FROM_ACP_I2S_2 0xb
+#define FROM_BLUETOOTH 0xb
+
+#define I2S_SP_INSTANCE 0x01
+#define I2S_BT_INSTANCE 0x02
#define ACP_TILE_ON_MASK 0x03
#define ACP_TILE_OFF_MASK 0x02
@@ -57,6 +75,14 @@
#define ACP_TO_SYSRAM_CH_NUM 14
#define I2S_TO_ACP_DMA_CH_NUM 15
+/* Playback DMA Channels for I2S BT instance */
+#define SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM 8
+#define ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM 9
+
+/* Capture DMA Channels for I2S BT Instance */
+#define ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM 10
+#define I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM 11
+
#define NUM_DSCRS_PER_CHANNEL 2
#define PLAYBACK_START_DMA_DESCR_CH12 0
@@ -69,9 +95,22 @@
#define CAPTURE_START_DMA_DESCR_CH15 6
#define CAPTURE_END_DMA_DESCR_CH15 7
+/* I2S BT Instance DMA Descriptors */
+#define PLAYBACK_START_DMA_DESCR_CH8 8
+#define PLAYBACK_END_DMA_DESCR_CH8 9
+#define PLAYBACK_START_DMA_DESCR_CH9 10
+#define PLAYBACK_END_DMA_DESCR_CH9 11
+
+#define CAPTURE_START_DMA_DESCR_CH10 12
+#define CAPTURE_END_DMA_DESCR_CH10 13
+#define CAPTURE_START_DMA_DESCR_CH11 14
+#define CAPTURE_END_DMA_DESCR_CH11 15
+
#define mmACP_I2S_16BIT_RESOLUTION_EN 0x5209
#define ACP_I2S_MIC_16BIT_RESOLUTION_EN 0x01
#define ACP_I2S_SP_16BIT_RESOLUTION_EN 0x02
+#define ACP_I2S_BT_16BIT_RESOLUTION_EN 0x04
+
enum acp_dma_priority_level {
/* 0x0 Specifies the DMA channel is given normal priority */
ACP_DMA_PRIORITY_LEVEL_NORMAL = 0x0,
@@ -84,16 +123,28 @@ struct audio_substream_data {
struct page *pg;
unsigned int order;
u16 num_of_pages;
+ u16 i2s_play_instance;
+ u16 i2s_capture_instance;
u16 direction;
+ u16 ch1;
+ u16 ch2;
+ u16 destination;
+ u16 dma_dscr_idx_1;
+ u16 dma_dscr_idx_2;
+ u32 pte_offset;
+ u32 sram_bank;
+ u32 byte_cnt_high;
+ u32 byte_cnt_low;
uint64_t size;
- u64 i2ssp_renderbytescount;
- u64 i2ssp_capturebytescount;
+ u64 bytescount;
void __iomem *acp_mmio;
};
struct audio_drv_data {
struct snd_pcm_substream *play_i2ssp_stream;
struct snd_pcm_substream *capture_i2ssp_stream;
+ struct snd_pcm_substream *play_i2sbt_stream;
+ struct snd_pcm_substream *capture_i2sbt_stream;
void __iomem *acp_mmio;
u32 asic_type;
};
--
2.7.4