[PATCH V3 10/10] ASoC: amd: dma driver changes for bt i2s instance

From: Vijendar Mukunda
Date: Tue May 01 2018 - 16:53:29 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
v2->v3: sqaushed previous patch series and spilt changes
into multiple patches (acp dma driver code cleanup
patches and bt i2s instance specific changes)
sound/soc/amd/acp-da7219-max98357a.c | 23 ++++
sound/soc/amd/acp-pcm-dma.c | 256 +++++++++++++++++++++++++++--------
sound/soc/amd/acp.h | 40 ++++++
3 files changed, 262 insertions(+), 57 deletions(-)

diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c
index 133139d..b3184ab 100644
--- a/sound/soc/amd/acp-da7219-max98357a.c
+++ b/sound/soc/amd/acp-da7219-max98357a.c
@@ -36,6 +36,7 @@
#include <linux/input.h>
#include <linux/acpi.h>

+#include "acp.h"
#include "../codecs/da7219.h"
#include "../codecs/da7219-aad.h"

@@ -44,6 +45,7 @@

static struct snd_soc_jack cz_jack;
static struct clk *da7219_dai_clk;
+extern int bt_pad_enable;

static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
{
@@ -132,6 +134,9 @@ static const struct snd_pcm_hw_constraint_list constraints_channels = {
static int cz_da7219_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);

/*
* On this platform for PCM device we support stereo
@@ -143,6 +148,7 @@ static int cz_da7219_startup(struct snd_pcm_substream *substream)
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_rates);

+ machine->i2s_instance = I2S_BT_INSTANCE;
return da7219_clk_enable(substream);
}

@@ -153,6 +159,11 @@ static void cz_da7219_shutdown(struct snd_pcm_substream *substream)

static int cz_max_startup(struct snd_pcm_substream *substream)
{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
+
+ machine->i2s_instance = I2S_SP_INSTANCE;
return da7219_clk_enable(substream);
}

@@ -163,6 +174,11 @@ static void cz_max_shutdown(struct snd_pcm_substream *substream)

static int cz_dmic_startup(struct snd_pcm_substream *substream)
{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
+
+ machine->i2s_instance = I2S_SP_INSTANCE;
return da7219_clk_enable(substream);
}

@@ -266,10 +282,16 @@ static int cz_probe(struct platform_device *pdev)
{
int ret;
struct snd_soc_card *card;
+ struct acp_platform_info *machine;

+ machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
+ GFP_KERNEL);
+ if (!machine)
+ return -ENOMEM;
card = &cz_card;
cz_card.dev = &pdev->dev;
platform_set_drvdata(pdev, card);
+ snd_soc_card_set_drvdata(card, machine);
ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
if (ret) {
dev_err(&pdev->dev,
@@ -277,6 +299,7 @@ static int cz_probe(struct platform_device *pdev)
cz_card.name, ret);
return ret;
}
+ bt_pad_enable = device_property_read_bool(&pdev->dev, "bt-pad-enable");
return 0;
}

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index ec9cab3..2ea103a 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -37,12 +37,14 @@
#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"
+bool bt_pad_enable = false;
+EXPORT_SYMBOL(bt_pad_enable);

static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
@@ -357,6 +359,9 @@ 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:
@@ -519,6 +524,13 @@ static int acp_init(void __iomem *acp_mmio, u32 asic_type)
val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
acp_reg_write(val, acp_mmio, mmACP_SOFT_RESET);

+ /* For BT instance change pins from UART to BT */
+ if (bt_pad_enable) {
+ val = acp_reg_read(acp_mmio, mmACP_BT_UART_PAD_SEL);
+ val |= ACP_BT_UART_PAD_SELECT_MASK;
+ acp_reg_write(val, acp_mmio, mmACP_BT_UART_PAD_SEL);
+ }
+
/* initiailize Onion control DAGB register */
acp_reg_write(ACP_ONION_CNTL_DEFAULT, acp_mmio,
mmACP_AXI2DAGB_ONION_CNTL);
@@ -637,6 +649,24 @@ 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) ==
@@ -659,6 +689,31 @@ 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
@@ -714,11 +769,11 @@ 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;
/*
* For Stoney, Memory gating is disabled,i.e SRAM Banks
* won't be turned off. The default state for SRAM banks is ON.
@@ -730,7 +785,6 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
bank, true);
}
} else {
- 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,
@@ -754,6 +808,8 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd,
DRV_NAME);
struct audio_drv_data *adata = dev_get_drvdata(component->dev);
+ struct snd_soc_card *card = prtd->card;
+ struct acp_platform_info *pinfo = snd_soc_card_get_drvdata(card);

runtime = substream->runtime;
rtd = runtime->private_data;
@@ -761,52 +817,109 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
if (WARN_ON(!rtd))
return -EINVAL;

+ rtd->i2s_instance = pinfo->i2s_instance;
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_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_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);
}

if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- switch (adata->asic_type) {
- case CHIP_STONEY:
- rtd->pte_offset = ACP_ST_PLAYBACK_PTE_OFFSET;
+ switch (rtd->i2s_instance) {
+ case I2S_BT_INSTANCE:
+ rtd->pte_offset = ACP_ST_BT_PLAYBACK_PTE_OFFSET;
+ rtd->ch1 = SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM;
+ rtd->ch2 = ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM;
+ rtd->sram_bank = ACP_SRAM_BANK_3_ADDRESS;
+ rtd->destination = TO_BLUETOOTH;
+ rtd->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH8;
+ rtd->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH9;
+ rtd->byte_cnt_high_reg_offset =
+ mmACP_I2S_BT_TRANSMIT_BYTE_CNT_HIGH;
+ rtd->byte_cnt_low_reg_offset =
+ mmACP_I2S_BT_TRANSMIT_BYTE_CNT_LOW;
+ adata->play_i2sbt_stream = substream;
break;
+ case I2S_SP_INSTANCE:
default:
- rtd->pte_offset = ACP_PLAYBACK_PTE_OFFSET;
+ switch (adata->asic_type) {
+ case CHIP_STONEY:
+ rtd->pte_offset = ACP_ST_PLAYBACK_PTE_OFFSET;
+ break;
+ default:
+ rtd->pte_offset = ACP_PLAYBACK_PTE_OFFSET;
+ }
+ rtd->ch1 = SYSRAM_TO_ACP_CH_NUM;
+ rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM;
+ rtd->sram_bank = ACP_SRAM_BANK_1_ADDRESS;
+ rtd->destination = TO_ACP_I2S_1;
+ rtd->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH12;
+ rtd->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH13;
+ rtd->byte_cnt_high_reg_offset =
+ mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH;
+ rtd->byte_cnt_low_reg_offset =
+ mmACP_I2S_TRANSMIT_BYTE_CNT_LOW;
+ adata->play_i2ssp_stream = substream;
}
- rtd->ch1 = SYSRAM_TO_ACP_CH_NUM;
- rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM;
- rtd->sram_bank = ACP_SRAM_BANK_1_ADDRESS;
- rtd->destination = TO_ACP_I2S_1;
- rtd->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH12;
- rtd->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH13;
- rtd->byte_cnt_high_reg_offset =
- mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH;
- rtd->byte_cnt_low_reg_offset = mmACP_I2S_TRANSMIT_BYTE_CNT_LOW;
} else {
- switch (adata->asic_type) {
- case CHIP_STONEY:
- rtd->pte_offset = ACP_ST_CAPTURE_PTE_OFFSET;
- rtd->sram_bank = ACP_SRAM_BANK_2_ADDRESS;
+ switch (rtd->i2s_instance) {
+ case I2S_BT_INSTANCE:
+ rtd->pte_offset = ACP_ST_BT_CAPTURE_PTE_OFFSET;
+ rtd->ch1 = ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM;
+ rtd->ch2 = I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM;
+ rtd->sram_bank = ACP_SRAM_BANK_4_ADDRESS;
+ rtd->destination = FROM_BLUETOOTH;
+ rtd->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH10;
+ rtd->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH11;
+ rtd->byte_cnt_high_reg_offset =
+ mmACP_I2S_BT_RECEIVE_BYTE_CNT_HIGH;
+ rtd->byte_cnt_low_reg_offset =
+ mmACP_I2S_BT_RECEIVE_BYTE_CNT_LOW;
+ adata->capture_i2sbt_stream = substream;
break;
+ case I2S_SP_INSTANCE:
default:
rtd->pte_offset = ACP_CAPTURE_PTE_OFFSET;
- rtd->sram_bank = ACP_SRAM_BANK_5_ADDRESS;
+ rtd->ch1 = ACP_TO_SYSRAM_CH_NUM;
+ rtd->ch2 = I2S_TO_ACP_DMA_CH_NUM;
+ switch (adata->asic_type) {
+ case CHIP_STONEY:
+ rtd->pte_offset = ACP_ST_CAPTURE_PTE_OFFSET;
+ rtd->sram_bank = ACP_SRAM_BANK_2_ADDRESS;
+ break;
+ default:
+ rtd->pte_offset = ACP_CAPTURE_PTE_OFFSET;
+ rtd->sram_bank = ACP_SRAM_BANK_5_ADDRESS;
+ }
+ rtd->destination = FROM_ACP_I2S_1;
+ rtd->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH14;
+ rtd->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH15;
+ rtd->byte_cnt_high_reg_offset =
+ mmACP_I2S_RECEIVED_BYTE_CNT_HIGH;
+ rtd->byte_cnt_low_reg_offset =
+ mmACP_I2S_RECEIVED_BYTE_CNT_LOW;
+ adata->capture_i2ssp_stream = substream;
}
- rtd->ch1 = ACP_TO_SYSRAM_CH_NUM;
- rtd->ch2 = I2S_TO_ACP_DMA_CH_NUM;
- rtd->destination = FROM_ACP_I2S_1;
- rtd->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH14;
- rtd->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH15;
- rtd->byte_cnt_high_reg_offset =
- mmACP_I2S_RECEIVED_BYTE_CNT_HIGH;
- rtd->byte_cnt_low_reg_offset = mmACP_I2S_RECEIVED_BYTE_CNT_LOW;
}

size = params_buffer_bytes(params);
@@ -999,24 +1112,39 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
struct audio_drv_data *adata = dev_get_drvdata(component->dev);

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_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_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);
+ }
}
}

@@ -1024,7 +1152,8 @@ 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;
@@ -1078,6 +1207,8 @@ 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;

@@ -1134,6 +1265,7 @@ 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);
@@ -1153,9 +1285,8 @@ 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) {
@@ -1164,9 +1295,20 @@ 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 62695ed..9cd3e96 100644
--- a/sound/soc/amd/acp.h
+++ b/sound/soc/amd/acp.h
@@ -13,6 +13,8 @@
/* 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
@@ -46,8 +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
@@ -68,6 +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
@@ -80,9 +95,23 @@
#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
+#define ACP_BT_UART_PAD_SELECT_MASK 0x1
+
enum acp_dma_priority_level {
/* 0x0 Specifies the DMA channel is given normal priority */
ACP_DMA_PRIORITY_LEVEL_NORMAL = 0x0,
@@ -95,6 +124,7 @@ struct audio_substream_data {
struct page *pg;
unsigned int order;
u16 num_of_pages;
+ u16 i2s_instance;
u16 direction;
u16 ch1;
u16 ch2;
@@ -113,10 +143,20 @@ struct audio_substream_data {
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;
};

+/*
+ * this structure used for platform data transfer between machine driver
+ * and dma driver
+ */
+struct acp_platform_info {
+ u16 i2s_instance;
+};
+
union acp_dma_count {
struct {
u32 low;
--
2.7.4