Added dma configuration parameters in audio_substream_data structure. Moved dma configuration parameters initialization to dma hw params callback. Removed separate byte count variables for playback and capture. Added variables to store ACP register offsets in audio_substream_data structure.
Signed-off-by: Vijendar Mukunda <[email protected]> --- sound/soc/amd/acp-pcm-dma.c | 241 ++++++++++++++++++-------------------------- sound/soc/amd/acp.h | 35 +++++-- 2 files changed, 126 insertions(+), 150 deletions(-) diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c index 5ffe2ef..4a4bbdf 100644 --- a/sound/soc/amd/acp-pcm-dma.c +++ b/sound/soc/amd/acp-pcm-dma.c @@ -317,54 +317,21 @@ 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 */ @@ -700,7 +667,6 @@ static irqreturn_t dma_irq_handler(int irq, void *arg) static int acp_dma_open(struct snd_pcm_substream *substream) { - u16 bank; int ret = 0; struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *prtd = substream->private_data; @@ -720,6 +686,7 @@ static int acp_dma_open(struct snd_pcm_substream *substream) default: runtime->hw = acp_pcm_hardware_playback; } + adata->bytescount = 0; } else { switch (intr_data->asic_type) { case CHIP_STONEY: @@ -728,6 +695,7 @@ static int acp_dma_open(struct snd_pcm_substream *substream) default: runtime->hw = acp_pcm_hardware_capture; } + adata->bytescount = 0; } ret = snd_pcm_hw_constraint_integer(runtime, @@ -749,28 +717,6 @@ static int acp_dma_open(struct snd_pcm_substream *substream) */ if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_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. - * Setting SRAM bank state code skipped for STONEY platform. - */ - if (intr_data->asic_type != CHIP_STONEY) { - for (bank = 1; bank <= 4; bank++) - acp_set_sram_bank_state(intr_data->acp_mmio, - 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, - bank, true); - } - } - return 0; } @@ -779,6 +725,7 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream, { int status; uint64_t size; + u16 bank; u32 val = 0; struct page *pg; struct snd_pcm_runtime *runtime; @@ -804,6 +751,60 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream, 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; + 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; + /* + * 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. + */ + if (adata->asic_type != CHIP_STONEY) { + for (bank = 1; bank <= 4; bank++) + acp_set_sram_bank_state(adata->acp_mmio, + bank, true); + } + } else { + rtd->pte_offset = ACP_CAPTURE_PTE_OFFSET; + rtd->ch1 = SYSRAM_TO_ACP_CH_NUM; + rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM; + switch (adata->asic_type) { + case CHIP_STONEY: + rtd->sram_bank = ACP_SRAM_BANK_2_ADDRESS; + break; + default: + 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; + if (adata->asic_type != CHIP_STONEY) { + for (bank = 5; bank <= 8; bank++) + acp_set_sram_bank_state(adata->acp_mmio, + bank, true); + } + } + size = params_buffer_bytes(params); status = snd_pcm_lib_malloc_pages(substream, size); if (status < 0) @@ -837,26 +838,15 @@ 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_reg_offset); + byte_count.bcount.low = acp_reg_read(rtd->acp_mmio, + rtd->byte_cnt_low_reg_offset); + return byte_count.bytescount; } static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream) @@ -872,15 +862,10 @@ 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 +883,15 @@ 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 +913,13 @@ 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 +927,21 @@ 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; @@ -1028,8 +986,6 @@ 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; /* @@ -1059,6 +1015,7 @@ static int acp_dma_close(struct snd_pcm_substream *substream) if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream) acp_reg_write(0, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB); + kfree(rtd); return 0; } diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h index 0e6089b..62695ed 100644 --- a/sound/soc/amd/acp.h +++ b/sound/soc/amd/acp.h @@ -10,17 +10,28 @@ #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_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 @@ -85,9 +96,17 @@ struct audio_substream_data { unsigned int order; u16 num_of_pages; 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_reg_offset; + u32 byte_cnt_low_reg_offset; uint64_t size; - u64 i2ssp_renderbytescount; - u64 i2ssp_capturebytescount; + u64 bytescount; void __iomem *acp_mmio; }; -- 2.7.4
