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@amd.com --- sound/soc/amd/Kconfig | 1 + sound/soc/amd/acp-pcm-dma.c | 388 +++++++++++++++++++++++++++----------------- sound/soc/amd/acp.h | 64 +++++++- 3 files changed, 295 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..460365c 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 +48,10 @@

#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 ACP_TILE_ON_MASK 0x03 #define ACP_TILE_OFF_MASK 0x02 @@ -57,6 +72,14 @@ #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 +92,22 @@ #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 +120,28 @@ 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; };