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Tue, 6 Jul 2021 22:41:12 -0700 Received: from LinuxHost.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server id 15.1.2242.4 via Frontend Transport; Wed, 7 Jul 2021 00:41:02 -0500 From: Vijendar Mukunda To: , CC: , , "Vijendar Mukunda" , Vijendar Mukunda , Liam Girdwood , "Jaroslav Kysela" , Takashi Iwai , open list Subject: [PATCH 07/12] ASoC: amd: add ACP5x pcm dma driver ops Date: Wed, 7 Jul 2021 11:26:18 +0530 Message-ID: <20210707055623.27371-8-vijendar.mukunda@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210707055623.27371-1-vijendar.mukunda@amd.com> References: <20210707055623.27371-1-vijendar.mukunda@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: c505f471-70d0-4486-0ecb-08d94109d4ae X-MS-TrafficTypeDiagnostic: MN2PR12MB3726: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jul 2021 05:41:12.7784 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c505f471-70d0-4486-0ecb-08d94109d4ae X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT028.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB3726 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds ACP5x PCM driver DMA operations. Signed-off-by: Vijendar Mukunda --- sound/soc/amd/vangogh/acp5x-pcm-dma.c | 306 +++++++++++++++++++++++++- sound/soc/amd/vangogh/acp5x.h | 106 +++++++++ 2 files changed, 410 insertions(+), 2 deletions(-) diff --git a/sound/soc/amd/vangogh/acp5x-pcm-dma.c b/sound/soc/amd/vangogh/acp5x-pcm-dma.c index d79712587d30..a4235cf33548 100644 --- a/sound/soc/amd/vangogh/acp5x-pcm-dma.c +++ b/sound/soc/amd/vangogh/acp5x-pcm-dma.c @@ -17,8 +17,42 @@ #define DRV_NAME "acp5x_i2s_dma" -static const struct snd_soc_component_driver acp5x_i2s_component = { - .name = DRV_NAME, +static const struct snd_pcm_hardware acp5x_pcm_hardware_playback = { + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .rate_min = 8000, + .rate_max = 96000, + .buffer_bytes_max = PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE, + .period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE, + .period_bytes_max = PLAYBACK_MAX_PERIOD_SIZE, + .periods_min = PLAYBACK_MIN_NUM_PERIODS, + .periods_max = PLAYBACK_MAX_NUM_PERIODS, +}; + +static const struct snd_pcm_hardware acp5x_pcm_hardware_capture = { + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .rate_min = 8000, + .rate_max = 96000, + .buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE, + .period_bytes_min = CAPTURE_MIN_PERIOD_SIZE, + .period_bytes_max = CAPTURE_MAX_PERIOD_SIZE, + .periods_min = CAPTURE_MIN_NUM_PERIODS, + .periods_max = CAPTURE_MAX_NUM_PERIODS, }; static irqreturn_t i2s_irq_handler(int irq, void *dev_id) @@ -68,6 +102,274 @@ static irqreturn_t i2s_irq_handler(int irq, void *dev_id) return IRQ_NONE; } +static void config_acp5x_dma(struct i2s_stream_instance *rtd, int direction) +{ + u16 page_idx; + u32 low, high, val, acp_fifo_addr, reg_fifo_addr; + u32 reg_dma_size, reg_fifo_size; + dma_addr_t addr; + + addr = rtd->dma_addr; + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + val = ACP_SRAM_HS_PB_PTE_OFFSET; + break; + case I2S_SP_INSTANCE: + default: + val = ACP_SRAM_SP_PB_PTE_OFFSET; + } + } else { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + val = ACP_SRAM_HS_CP_PTE_OFFSET; + break; + case I2S_SP_INSTANCE: + default: + val = ACP_SRAM_SP_CP_PTE_OFFSET; + } + } + /* Group Enable */ + acp_writel(ACP_SRAM_PTE_OFFSET | BIT(31), rtd->acp5x_base + + ACPAXI2AXI_ATU_BASE_ADDR_GRP_1); + acp_writel(PAGE_SIZE_4K_ENABLE, rtd->acp5x_base + + ACPAXI2AXI_ATU_PAGE_SIZE_GRP_1); + + for (page_idx = 0; page_idx < rtd->num_pages; page_idx++) { + /* Load the low address of page int ACP SRAM through SRBM */ + low = lower_32_bits(addr); + high = upper_32_bits(addr); + + acp_writel(low, rtd->acp5x_base + ACP_SCRATCH_REG_0 + val); + high |= BIT(31); + acp_writel(high, rtd->acp5x_base + ACP_SCRATCH_REG_0 + val + + 4); + /* Move to next physically contiguous page */ + val += 8; + addr += PAGE_SIZE; + } + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + reg_dma_size = ACP_HS_TX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + HS_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_HS_TX_FIFOADDR; + reg_fifo_size = ACP_HS_TX_FIFOSIZE; + acp_writel(I2S_HS_TX_MEM_WINDOW_START, + rtd->acp5x_base + ACP_HS_TX_RINGBUFADDR); + break; + + case I2S_SP_INSTANCE: + default: + reg_dma_size = ACP_I2S_TX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + SP_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_I2S_TX_FIFOADDR; + reg_fifo_size = ACP_I2S_TX_FIFOSIZE; + acp_writel(I2S_SP_TX_MEM_WINDOW_START, + rtd->acp5x_base + ACP_I2S_TX_RINGBUFADDR); + } + } else { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + reg_dma_size = ACP_HS_RX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + HS_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_HS_RX_FIFOADDR; + reg_fifo_size = ACP_HS_RX_FIFOSIZE; + acp_writel(I2S_HS_RX_MEM_WINDOW_START, + rtd->acp5x_base + ACP_HS_RX_RINGBUFADDR); + break; + + case I2S_SP_INSTANCE: + default: + reg_dma_size = ACP_I2S_RX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + SP_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_I2S_RX_FIFOADDR; + reg_fifo_size = ACP_I2S_RX_FIFOSIZE; + acp_writel(I2S_SP_RX_MEM_WINDOW_START, + rtd->acp5x_base + ACP_I2S_RX_RINGBUFADDR); + } + } + acp_writel(DMA_SIZE, rtd->acp5x_base + reg_dma_size); + acp_writel(acp_fifo_addr, rtd->acp5x_base + reg_fifo_addr); + acp_writel(FIFO_SIZE, rtd->acp5x_base + reg_fifo_size); + acp_writel(BIT(I2S_RX_THRESHOLD) | BIT(HS_RX_THRESHOLD) + | BIT(I2S_TX_THRESHOLD) | BIT(HS_TX_THRESHOLD), + rtd->acp5x_base + ACP_EXTERNAL_INTR_CNTL); +} + +static int acp5x_dma_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime; + struct snd_soc_pcm_runtime *prtd; + struct i2s_dev_data *adata; + struct i2s_stream_instance *i2s_data; + int ret; + + runtime = substream->runtime; + prtd = asoc_substream_to_rtd(substream); + component = snd_soc_rtdcom_lookup(prtd, DRV_NAME); + adata = dev_get_drvdata(component->dev); + + i2s_data = kzalloc(sizeof(*i2s_data), GFP_KERNEL); + if (!i2s_data) + return -EINVAL; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + runtime->hw = acp5x_pcm_hardware_playback; + else + runtime->hw = acp5x_pcm_hardware_capture; + + ret = snd_pcm_hw_constraint_integer(runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) { + dev_err(component->dev, "set integer constraint failed\n"); + kfree(i2s_data); + return ret; + } + i2s_data->acp5x_base = adata->acp5x_base; + runtime->private_data = i2s_data; + return ret; +} + +static int acp5x_dma_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct i2s_stream_instance *rtd; + struct snd_soc_pcm_runtime *prtd; + struct snd_soc_card *card; + struct acp5x_platform_info *pinfo; + struct i2s_dev_data *adata; + u64 size; + + prtd = asoc_substream_to_rtd(substream); + card = prtd->card; + pinfo = snd_soc_card_get_drvdata(card); + adata = dev_get_drvdata(component->dev); + rtd = substream->runtime->private_data; + + if (!rtd) + return -EINVAL; + + if (pinfo) { + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + rtd->i2s_instance = pinfo->play_i2s_instance; + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + adata->play_stream = substream; + break; + case I2S_SP_INSTANCE: + default: + adata->i2ssp_play_stream = substream; + } + } else { + rtd->i2s_instance = pinfo->cap_i2s_instance; + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + adata->capture_stream = substream; + break; + case I2S_SP_INSTANCE: + default: + adata->i2ssp_capture_stream = substream; + } + } + } else { + pr_err("pinfo failed\n"); + } + size = params_buffer_bytes(params); + rtd->dma_addr = substream->dma_buffer.addr; + rtd->num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT); + config_acp5x_dma(rtd, substream->stream); + return 0; +} + +static snd_pcm_uframes_t acp5x_dma_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct i2s_stream_instance *rtd; + u32 pos; + u32 buffersize; + u64 bytescount; + + rtd = substream->runtime->private_data; + buffersize = frames_to_bytes(substream->runtime, + substream->runtime->buffer_size); + bytescount = acp_get_byte_count(rtd, substream->stream); + if (bytescount > rtd->bytescount) + bytescount -= rtd->bytescount; + pos = do_div(bytescount, buffersize); + return bytes_to_frames(substream->runtime, pos); +} + +static int acp5x_dma_new(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd) +{ + struct device *parent = component->dev->parent; + + snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV, + parent, MIN_BUFFER, MAX_BUFFER); + return 0; +} + +static int acp5x_dma_mmap(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + return snd_pcm_lib_default_mmap(substream, vma); +} + +static int acp5x_dma_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *prtd; + struct i2s_dev_data *adata; + struct i2s_stream_instance *ins; + + prtd = asoc_substream_to_rtd(substream); + component = snd_soc_rtdcom_lookup(prtd, DRV_NAME); + adata = dev_get_drvdata(component->dev); + ins = substream->runtime->private_data; + if (!ins) + return -EINVAL; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + switch (ins->i2s_instance) { + case I2S_HS_INSTANCE: + adata->play_stream = NULL; + break; + case I2S_SP_INSTANCE: + default: + adata->i2ssp_play_stream = NULL; + } + } else { + switch (ins->i2s_instance) { + case I2S_HS_INSTANCE: + adata->capture_stream = NULL; + break; + case I2S_SP_INSTANCE: + default: + adata->i2ssp_capture_stream = NULL; + } + } + kfree(ins); + return 0; +} + +static const struct snd_soc_component_driver acp5x_i2s_component = { + .name = DRV_NAME, + .open = acp5x_dma_open, + .close = acp5x_dma_close, + .hw_params = acp5x_dma_hw_params, + .pointer = acp5x_dma_pointer, + .mmap = acp5x_dma_mmap, + .pcm_construct = acp5x_dma_new, +}; + static int acp5x_audio_probe(struct platform_device *pdev) { struct resource *res; diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h index 44662e54bd34..99298a2f38ce 100644 --- a/sound/soc/amd/vangogh/acp5x.h +++ b/sound/soc/amd/vangogh/acp5x.h @@ -6,6 +6,7 @@ */ #include "vg_chip_offset_byte.h" +#include #define ACP5x_PHY_BASE_ADDRESS 0x1240000 #define ACP_DEVICE_ID 0x15E2 @@ -36,6 +37,39 @@ #define HS_TX_THRESHOLD 24 #define HS_RX_THRESHOLD 23 +#define I2S_SP_INSTANCE 0x01 +#define I2S_HS_INSTANCE 0x02 + +#define ACP_SRAM_PTE_OFFSET 0x02050000 +#define ACP_SRAM_SP_PB_PTE_OFFSET 0x0 +#define ACP_SRAM_SP_CP_PTE_OFFSET 0x100 +#define ACP_SRAM_HS_PB_PTE_OFFSET 0x200 +#define ACP_SRAM_HS_CP_PTE_OFFSET 0x300 +#define PAGE_SIZE_4K_ENABLE 0x2 +#define I2S_SP_TX_MEM_WINDOW_START 0x4000000 +#define I2S_SP_RX_MEM_WINDOW_START 0x4020000 +#define I2S_HS_TX_MEM_WINDOW_START 0x4040000 +#define I2S_HS_RX_MEM_WINDOW_START 0x4060000 + +#define SP_PB_FIFO_ADDR_OFFSET 0x500 +#define SP_CAPT_FIFO_ADDR_OFFSET 0x700 +#define HS_PB_FIFO_ADDR_OFFSET 0x900 +#define HS_CAPT_FIFO_ADDR_OFFSET 0xB00 +#define PLAYBACK_MIN_NUM_PERIODS 2 +#define PLAYBACK_MAX_NUM_PERIODS 8 +#define PLAYBACK_MAX_PERIOD_SIZE 8192 +#define PLAYBACK_MIN_PERIOD_SIZE 1024 +#define CAPTURE_MIN_NUM_PERIODS 2 +#define CAPTURE_MAX_NUM_PERIODS 8 +#define CAPTURE_MAX_PERIOD_SIZE 8192 +#define CAPTURE_MIN_PERIOD_SIZE 1024 + +#define MAX_BUFFER (PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS) +#define MIN_BUFFER MAX_BUFFER +#define FIFO_SIZE 0x100 +#define DMA_SIZE 0x40 +#define FRM_LEN 0x100 + struct i2s_dev_data { unsigned int i2s_irq; void __iomem *acp5x_base; @@ -45,6 +79,31 @@ struct i2s_dev_data { struct snd_pcm_substream *i2ssp_capture_stream; }; +struct i2s_stream_instance { + u16 num_pages; + u16 i2s_instance; + u16 direction; + u16 channels; + u32 xfer_resolution; + u32 val; + dma_addr_t dma_addr; + u64 bytescount; + void __iomem *acp5x_base; +}; + +union acp_dma_count { + struct { + u32 low; + u32 high; + } bcount; + u64 bytescount; +}; + +struct acp5x_platform_info { + u16 play_i2s_instance; + u16 cap_i2s_instance; +}; + static inline u32 acp_readl(void __iomem *base_addr) { return readl(base_addr - ACP5x_PHY_BASE_ADDRESS); @@ -54,3 +113,50 @@ static inline void acp_writel(u32 val, void __iomem *base_addr) { writel(val, base_addr - ACP5x_PHY_BASE_ADDRESS); } + +static inline u64 acp_get_byte_count(struct i2s_stream_instance *rtd, + int direction) +{ + union acp_dma_count byte_count; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + byte_count.bcount.high = + acp_readl(rtd->acp5x_base + + ACP_HS_TX_LINEARPOSCNTR_HIGH); + byte_count.bcount.low = + acp_readl(rtd->acp5x_base + + ACP_HS_TX_LINEARPOSCNTR_LOW); + break; + case I2S_SP_INSTANCE: + default: + byte_count.bcount.high = + acp_readl(rtd->acp5x_base + + ACP_I2S_TX_LINEARPOSCNTR_HIGH); + byte_count.bcount.low = + acp_readl(rtd->acp5x_base + + ACP_I2S_TX_LINEARPOSCNTR_LOW); + } + } else { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + byte_count.bcount.high = + acp_readl(rtd->acp5x_base + + ACP_HS_RX_LINEARPOSCNTR_HIGH); + byte_count.bcount.low = + acp_readl(rtd->acp5x_base + + ACP_HS_RX_LINEARPOSCNTR_LOW); + break; + case I2S_SP_INSTANCE: + default: + byte_count.bcount.high = + acp_readl(rtd->acp5x_base + + ACP_I2S_RX_LINEARPOSCNTR_HIGH); + byte_count.bcount.low = + acp_readl(rtd->acp5x_base + + ACP_I2S_RX_LINEARPOSCNTR_LOW); + } + } + return byte_count.bytescount; +} -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F02D2C07E95 for ; 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Signed-off-by: Vijendar Mukunda --- sound/soc/amd/vangogh/acp5x-pcm-dma.c | 306 +++++++++++++++++++++++++- sound/soc/amd/vangogh/acp5x.h | 106 +++++++++ 2 files changed, 410 insertions(+), 2 deletions(-) diff --git a/sound/soc/amd/vangogh/acp5x-pcm-dma.c b/sound/soc/amd/vangogh/acp5x-pcm-dma.c index d79712587d30..a4235cf33548 100644 --- a/sound/soc/amd/vangogh/acp5x-pcm-dma.c +++ b/sound/soc/amd/vangogh/acp5x-pcm-dma.c @@ -17,8 +17,42 @@ #define DRV_NAME "acp5x_i2s_dma" -static const struct snd_soc_component_driver acp5x_i2s_component = { - .name = DRV_NAME, +static const struct snd_pcm_hardware acp5x_pcm_hardware_playback = { + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .rate_min = 8000, + .rate_max = 96000, + .buffer_bytes_max = PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE, + .period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE, + .period_bytes_max = PLAYBACK_MAX_PERIOD_SIZE, + .periods_min = PLAYBACK_MIN_NUM_PERIODS, + .periods_max = PLAYBACK_MAX_NUM_PERIODS, +}; + +static const struct snd_pcm_hardware acp5x_pcm_hardware_capture = { + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .rate_min = 8000, + .rate_max = 96000, + .buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE, + .period_bytes_min = CAPTURE_MIN_PERIOD_SIZE, + .period_bytes_max = CAPTURE_MAX_PERIOD_SIZE, + .periods_min = CAPTURE_MIN_NUM_PERIODS, + .periods_max = CAPTURE_MAX_NUM_PERIODS, }; static irqreturn_t i2s_irq_handler(int irq, void *dev_id) @@ -68,6 +102,274 @@ static irqreturn_t i2s_irq_handler(int irq, void *dev_id) return IRQ_NONE; } +static void config_acp5x_dma(struct i2s_stream_instance *rtd, int direction) +{ + u16 page_idx; + u32 low, high, val, acp_fifo_addr, reg_fifo_addr; + u32 reg_dma_size, reg_fifo_size; + dma_addr_t addr; + + addr = rtd->dma_addr; + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + val = ACP_SRAM_HS_PB_PTE_OFFSET; + break; + case I2S_SP_INSTANCE: + default: + val = ACP_SRAM_SP_PB_PTE_OFFSET; + } + } else { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + val = ACP_SRAM_HS_CP_PTE_OFFSET; + break; + case I2S_SP_INSTANCE: + default: + val = ACP_SRAM_SP_CP_PTE_OFFSET; + } + } + /* Group Enable */ + acp_writel(ACP_SRAM_PTE_OFFSET | BIT(31), rtd->acp5x_base + + ACPAXI2AXI_ATU_BASE_ADDR_GRP_1); + acp_writel(PAGE_SIZE_4K_ENABLE, rtd->acp5x_base + + ACPAXI2AXI_ATU_PAGE_SIZE_GRP_1); + + for (page_idx = 0; page_idx < rtd->num_pages; page_idx++) { + /* Load the low address of page int ACP SRAM through SRBM */ + low = lower_32_bits(addr); + high = upper_32_bits(addr); + + acp_writel(low, rtd->acp5x_base + ACP_SCRATCH_REG_0 + val); + high |= BIT(31); + acp_writel(high, rtd->acp5x_base + ACP_SCRATCH_REG_0 + val + + 4); + /* Move to next physically contiguous page */ + val += 8; + addr += PAGE_SIZE; + } + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + reg_dma_size = ACP_HS_TX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + HS_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_HS_TX_FIFOADDR; + reg_fifo_size = ACP_HS_TX_FIFOSIZE; + acp_writel(I2S_HS_TX_MEM_WINDOW_START, + rtd->acp5x_base + ACP_HS_TX_RINGBUFADDR); + break; + + case I2S_SP_INSTANCE: + default: + reg_dma_size = ACP_I2S_TX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + SP_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_I2S_TX_FIFOADDR; + reg_fifo_size = ACP_I2S_TX_FIFOSIZE; + acp_writel(I2S_SP_TX_MEM_WINDOW_START, + rtd->acp5x_base + ACP_I2S_TX_RINGBUFADDR); + } + } else { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + reg_dma_size = ACP_HS_RX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + HS_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_HS_RX_FIFOADDR; + reg_fifo_size = ACP_HS_RX_FIFOSIZE; + acp_writel(I2S_HS_RX_MEM_WINDOW_START, + rtd->acp5x_base + ACP_HS_RX_RINGBUFADDR); + break; + + case I2S_SP_INSTANCE: + default: + reg_dma_size = ACP_I2S_RX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + SP_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_I2S_RX_FIFOADDR; + reg_fifo_size = ACP_I2S_RX_FIFOSIZE; + acp_writel(I2S_SP_RX_MEM_WINDOW_START, + rtd->acp5x_base + ACP_I2S_RX_RINGBUFADDR); + } + } + acp_writel(DMA_SIZE, rtd->acp5x_base + reg_dma_size); + acp_writel(acp_fifo_addr, rtd->acp5x_base + reg_fifo_addr); + acp_writel(FIFO_SIZE, rtd->acp5x_base + reg_fifo_size); + acp_writel(BIT(I2S_RX_THRESHOLD) | BIT(HS_RX_THRESHOLD) + | BIT(I2S_TX_THRESHOLD) | BIT(HS_TX_THRESHOLD), + rtd->acp5x_base + ACP_EXTERNAL_INTR_CNTL); +} + +static int acp5x_dma_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime; + struct snd_soc_pcm_runtime *prtd; + struct i2s_dev_data *adata; + struct i2s_stream_instance *i2s_data; + int ret; + + runtime = substream->runtime; + prtd = asoc_substream_to_rtd(substream); + component = snd_soc_rtdcom_lookup(prtd, DRV_NAME); + adata = dev_get_drvdata(component->dev); + + i2s_data = kzalloc(sizeof(*i2s_data), GFP_KERNEL); + if (!i2s_data) + return -EINVAL; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + runtime->hw = acp5x_pcm_hardware_playback; + else + runtime->hw = acp5x_pcm_hardware_capture; + + ret = snd_pcm_hw_constraint_integer(runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) { + dev_err(component->dev, "set integer constraint failed\n"); + kfree(i2s_data); + return ret; + } + i2s_data->acp5x_base = adata->acp5x_base; + runtime->private_data = i2s_data; + return ret; +} + +static int acp5x_dma_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct i2s_stream_instance *rtd; + struct snd_soc_pcm_runtime *prtd; + struct snd_soc_card *card; + struct acp5x_platform_info *pinfo; + struct i2s_dev_data *adata; + u64 size; + + prtd = asoc_substream_to_rtd(substream); + card = prtd->card; + pinfo = snd_soc_card_get_drvdata(card); + adata = dev_get_drvdata(component->dev); + rtd = substream->runtime->private_data; + + if (!rtd) + return -EINVAL; + + if (pinfo) { + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + rtd->i2s_instance = pinfo->play_i2s_instance; + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + adata->play_stream = substream; + break; + case I2S_SP_INSTANCE: + default: + adata->i2ssp_play_stream = substream; + } + } else { + rtd->i2s_instance = pinfo->cap_i2s_instance; + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + adata->capture_stream = substream; + break; + case I2S_SP_INSTANCE: + default: + adata->i2ssp_capture_stream = substream; + } + } + } else { + pr_err("pinfo failed\n"); + } + size = params_buffer_bytes(params); + rtd->dma_addr = substream->dma_buffer.addr; + rtd->num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT); + config_acp5x_dma(rtd, substream->stream); + return 0; +} + +static snd_pcm_uframes_t acp5x_dma_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct i2s_stream_instance *rtd; + u32 pos; + u32 buffersize; + u64 bytescount; + + rtd = substream->runtime->private_data; + buffersize = frames_to_bytes(substream->runtime, + substream->runtime->buffer_size); + bytescount = acp_get_byte_count(rtd, substream->stream); + if (bytescount > rtd->bytescount) + bytescount -= rtd->bytescount; + pos = do_div(bytescount, buffersize); + return bytes_to_frames(substream->runtime, pos); +} + +static int acp5x_dma_new(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd) +{ + struct device *parent = component->dev->parent; + + snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV, + parent, MIN_BUFFER, MAX_BUFFER); + return 0; +} + +static int acp5x_dma_mmap(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + return snd_pcm_lib_default_mmap(substream, vma); +} + +static int acp5x_dma_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *prtd; + struct i2s_dev_data *adata; + struct i2s_stream_instance *ins; + + prtd = asoc_substream_to_rtd(substream); + component = snd_soc_rtdcom_lookup(prtd, DRV_NAME); + adata = dev_get_drvdata(component->dev); + ins = substream->runtime->private_data; + if (!ins) + return -EINVAL; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + switch (ins->i2s_instance) { + case I2S_HS_INSTANCE: + adata->play_stream = NULL; + break; + case I2S_SP_INSTANCE: + default: + adata->i2ssp_play_stream = NULL; + } + } else { + switch (ins->i2s_instance) { + case I2S_HS_INSTANCE: + adata->capture_stream = NULL; + break; + case I2S_SP_INSTANCE: + default: + adata->i2ssp_capture_stream = NULL; + } + } + kfree(ins); + return 0; +} + +static const struct snd_soc_component_driver acp5x_i2s_component = { + .name = DRV_NAME, + .open = acp5x_dma_open, + .close = acp5x_dma_close, + .hw_params = acp5x_dma_hw_params, + .pointer = acp5x_dma_pointer, + .mmap = acp5x_dma_mmap, + .pcm_construct = acp5x_dma_new, +}; + static int acp5x_audio_probe(struct platform_device *pdev) { struct resource *res; diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h index 44662e54bd34..99298a2f38ce 100644 --- a/sound/soc/amd/vangogh/acp5x.h +++ b/sound/soc/amd/vangogh/acp5x.h @@ -6,6 +6,7 @@ */ #include "vg_chip_offset_byte.h" +#include #define ACP5x_PHY_BASE_ADDRESS 0x1240000 #define ACP_DEVICE_ID 0x15E2 @@ -36,6 +37,39 @@ #define HS_TX_THRESHOLD 24 #define HS_RX_THRESHOLD 23 +#define I2S_SP_INSTANCE 0x01 +#define I2S_HS_INSTANCE 0x02 + +#define ACP_SRAM_PTE_OFFSET 0x02050000 +#define ACP_SRAM_SP_PB_PTE_OFFSET 0x0 +#define ACP_SRAM_SP_CP_PTE_OFFSET 0x100 +#define ACP_SRAM_HS_PB_PTE_OFFSET 0x200 +#define ACP_SRAM_HS_CP_PTE_OFFSET 0x300 +#define PAGE_SIZE_4K_ENABLE 0x2 +#define I2S_SP_TX_MEM_WINDOW_START 0x4000000 +#define I2S_SP_RX_MEM_WINDOW_START 0x4020000 +#define I2S_HS_TX_MEM_WINDOW_START 0x4040000 +#define I2S_HS_RX_MEM_WINDOW_START 0x4060000 + +#define SP_PB_FIFO_ADDR_OFFSET 0x500 +#define SP_CAPT_FIFO_ADDR_OFFSET 0x700 +#define HS_PB_FIFO_ADDR_OFFSET 0x900 +#define HS_CAPT_FIFO_ADDR_OFFSET 0xB00 +#define PLAYBACK_MIN_NUM_PERIODS 2 +#define PLAYBACK_MAX_NUM_PERIODS 8 +#define PLAYBACK_MAX_PERIOD_SIZE 8192 +#define PLAYBACK_MIN_PERIOD_SIZE 1024 +#define CAPTURE_MIN_NUM_PERIODS 2 +#define CAPTURE_MAX_NUM_PERIODS 8 +#define CAPTURE_MAX_PERIOD_SIZE 8192 +#define CAPTURE_MIN_PERIOD_SIZE 1024 + +#define MAX_BUFFER (PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS) +#define MIN_BUFFER MAX_BUFFER +#define FIFO_SIZE 0x100 +#define DMA_SIZE 0x40 +#define FRM_LEN 0x100 + struct i2s_dev_data { unsigned int i2s_irq; void __iomem *acp5x_base; @@ -45,6 +79,31 @@ struct i2s_dev_data { struct snd_pcm_substream *i2ssp_capture_stream; }; +struct i2s_stream_instance { + u16 num_pages; + u16 i2s_instance; + u16 direction; + u16 channels; + u32 xfer_resolution; + u32 val; + dma_addr_t dma_addr; + u64 bytescount; + void __iomem *acp5x_base; +}; + +union acp_dma_count { + struct { + u32 low; + u32 high; + } bcount; + u64 bytescount; +}; + +struct acp5x_platform_info { + u16 play_i2s_instance; + u16 cap_i2s_instance; +}; + static inline u32 acp_readl(void __iomem *base_addr) { return readl(base_addr - ACP5x_PHY_BASE_ADDRESS); @@ -54,3 +113,50 @@ static inline void acp_writel(u32 val, void __iomem *base_addr) { writel(val, base_addr - ACP5x_PHY_BASE_ADDRESS); } + +static inline u64 acp_get_byte_count(struct i2s_stream_instance *rtd, + int direction) +{ + union acp_dma_count byte_count; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + byte_count.bcount.high = + acp_readl(rtd->acp5x_base + + ACP_HS_TX_LINEARPOSCNTR_HIGH); + byte_count.bcount.low = + acp_readl(rtd->acp5x_base + + ACP_HS_TX_LINEARPOSCNTR_LOW); + break; + case I2S_SP_INSTANCE: + default: + byte_count.bcount.high = + acp_readl(rtd->acp5x_base + + ACP_I2S_TX_LINEARPOSCNTR_HIGH); + byte_count.bcount.low = + acp_readl(rtd->acp5x_base + + ACP_I2S_TX_LINEARPOSCNTR_LOW); + } + } else { + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + byte_count.bcount.high = + acp_readl(rtd->acp5x_base + + ACP_HS_RX_LINEARPOSCNTR_HIGH); + byte_count.bcount.low = + acp_readl(rtd->acp5x_base + + ACP_HS_RX_LINEARPOSCNTR_LOW); + break; + case I2S_SP_INSTANCE: + default: + byte_count.bcount.high = + acp_readl(rtd->acp5x_base + + ACP_I2S_RX_LINEARPOSCNTR_HIGH); + byte_count.bcount.low = + acp_readl(rtd->acp5x_base + + ACP_I2S_RX_LINEARPOSCNTR_LOW); + } + } + return byte_count.bytescount; +} -- 2.17.1