From: Ajit Kumar Pandey AjitKumar.Pandey@amd.com
Add module to support ALSA pcm stream configurations for ACP I2S and DMIC endpoints
Signed-off-by: Ajit Kumar Pandey AjitKumar.Pandey@amd.com Reviewed-by: Bard Liao bard.liao@intel.com Reviewed-by: Kai Vehmanen kai.vehmanen@linux.intel.com Signed-off-by: Daniel Baluta daniel.baluta@nxp.com --- sound/soc/sof/amd/Makefile | 2 +- sound/soc/sof/amd/acp-pcm.c | 82 +++++++++++++++ sound/soc/sof/amd/acp-stream.c | 181 +++++++++++++++++++++++++++++++++ sound/soc/sof/amd/acp.c | 2 + sound/soc/sof/amd/acp.h | 28 +++++ sound/soc/sof/amd/renoir.c | 11 ++ 6 files changed, 305 insertions(+), 1 deletion(-) create mode 100644 sound/soc/sof/amd/acp-pcm.c create mode 100644 sound/soc/sof/amd/acp-stream.c
diff --git a/sound/soc/sof/amd/Makefile b/sound/soc/sof/amd/Makefile index 29928b16002f..7b88db9c5fb7 100644 --- a/sound/soc/sof/amd/Makefile +++ b/sound/soc/sof/amd/Makefile @@ -4,7 +4,7 @@ # # Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
-snd-sof-amd-acp-objs := acp.o acp-loader.o acp-ipc.o +snd-sof-amd-acp-objs := acp.o acp-loader.o acp-ipc.o acp-pcm.o acp-stream.o snd-sof-amd-renoir-objs := renoir.o
obj-$(CONFIG_SND_SOC_SOF_AMD_COMMON) += snd-sof-amd-acp.o diff --git a/sound/soc/sof/amd/acp-pcm.c b/sound/soc/sof/amd/acp-pcm.c new file mode 100644 index 000000000000..5b23830cb1f3 --- /dev/null +++ b/sound/soc/sof/amd/acp-pcm.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +// +// This file is provided under a dual BSD/GPLv2 license. When using or +// redistributing this file, you may do so under either license. +// +// Copyright(c) 2021 Advanced Micro Devices, Inc. +// +// Authors: Ajit Kumar Pandey AjitKumar.Pandey@amd.com + +/* + * PCM interface for generic AMD audio ACP DSP block + */ +#include <sound/pcm_params.h> + +#include "../ops.h" +#include "acp.h" +#include "acp-dsp-offset.h" + +int acp_pcm_hw_params(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct sof_ipc_stream_params *ipc_params) +{ + struct acp_dsp_stream *stream = substream->runtime->private_data; + unsigned int buf_offset, index; + u32 size; + int ret; + + size = ipc_params->buffer.size; + stream->num_pages = ipc_params->buffer.pages; + stream->dmab = substream->runtime->dma_buffer_p; + + ret = acp_dsp_stream_config(sdev, stream); + if (ret < 0) { + dev_err(sdev->dev, "stream configuration failed\n"); + return ret; + } + + ipc_params->buffer.phy_addr = stream->reg_offset; + ipc_params->stream_tag = stream->stream_tag; + + /* write buffer size of stream in scratch memory */ + + buf_offset = offsetof(struct scratch_reg_conf, buf_size); + index = stream->stream_tag - 1; + buf_offset = buf_offset + index * 4; + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + buf_offset, size); + + return 0; +} +EXPORT_SYMBOL_NS(acp_pcm_hw_params, SND_SOC_SOF_AMD_COMMON); + +int acp_pcm_open(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream) +{ + struct acp_dsp_stream *stream; + + stream = acp_dsp_stream_get(sdev, 0); + if (!stream) + return -ENODEV; + + substream->runtime->private_data = stream; + stream->substream = substream; + + return 0; +} +EXPORT_SYMBOL_NS(acp_pcm_open, SND_SOC_SOF_AMD_COMMON); + +int acp_pcm_close(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream) +{ + struct acp_dsp_stream *stream; + + stream = substream->runtime->private_data; + if (!stream) { + dev_err(sdev->dev, "No open stream\n"); + return -EINVAL; + } + + stream->substream = NULL; + substream->runtime->private_data = NULL; + + return acp_dsp_stream_put(sdev, stream); +} +EXPORT_SYMBOL_NS(acp_pcm_close, SND_SOC_SOF_AMD_COMMON); diff --git a/sound/soc/sof/amd/acp-stream.c b/sound/soc/sof/amd/acp-stream.c new file mode 100644 index 000000000000..f2837bfbdb20 --- /dev/null +++ b/sound/soc/sof/amd/acp-stream.c @@ -0,0 +1,181 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +// +// This file is provided under a dual BSD/GPLv2 license. When using or +// redistributing this file, you may do so under either license. +// +// Copyright(c) 2021 Advanced Micro Devices, Inc. +// +// Authors: Ajit Kumar Pandey AjitKumar.Pandey@amd.com + +/* + * Hardware interface for generic AMD audio DSP ACP IP + */ + +#include "../ops.h" +#include "acp-dsp-offset.h" +#include "acp.h" + +#define PTE_GRP1_OFFSET 0x00000000 +#define PTE_GRP2_OFFSET 0x00800000 +#define PTE_GRP3_OFFSET 0x01000000 +#define PTE_GRP4_OFFSET 0x01800000 +#define PTE_GRP5_OFFSET 0x02000000 +#define PTE_GRP6_OFFSET 0x02800000 +#define PTE_GRP7_OFFSET 0x03000000 +#define PTE_GRP8_OFFSET 0x03800000 + +int acp_dsp_stream_config(struct snd_sof_dev *sdev, struct acp_dsp_stream *stream) +{ + unsigned int pte_reg, pte_size, phy_addr_offset, index; + int stream_tag = stream->stream_tag; + u32 low, high, offset, reg_val; + dma_addr_t addr; + int page_idx; + + switch (stream_tag) { + case 1: + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_1; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_1; + offset = offsetof(struct scratch_reg_conf, grp1_pte); + stream->reg_offset = PTE_GRP1_OFFSET; + break; + case 2: + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_2; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_2; + offset = offsetof(struct scratch_reg_conf, grp2_pte); + stream->reg_offset = PTE_GRP2_OFFSET; + break; + case 3: + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_3; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_3; + offset = offsetof(struct scratch_reg_conf, grp3_pte); + stream->reg_offset = PTE_GRP3_OFFSET; + break; + case 4: + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_4; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_4; + offset = offsetof(struct scratch_reg_conf, grp4_pte); + stream->reg_offset = PTE_GRP4_OFFSET; + break; + case 5: + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_5; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_5; + offset = offsetof(struct scratch_reg_conf, grp5_pte); + stream->reg_offset = PTE_GRP5_OFFSET; + break; + case 6: + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_6; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_6; + offset = offsetof(struct scratch_reg_conf, grp6_pte); + stream->reg_offset = PTE_GRP6_OFFSET; + break; + case 7: + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_7; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_7; + offset = offsetof(struct scratch_reg_conf, grp7_pte); + stream->reg_offset = PTE_GRP7_OFFSET; + break; + case 8: + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_8; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_8; + offset = offsetof(struct scratch_reg_conf, grp8_pte); + stream->reg_offset = PTE_GRP8_OFFSET; + break; + default: + dev_err(sdev->dev, "Invalid stream tag %d\n", stream_tag); + return -EINVAL; + } + + /* write phy_addr in scratch memory */ + + phy_addr_offset = offsetof(struct scratch_reg_conf, reg_offset); + index = stream_tag - 1; + phy_addr_offset = phy_addr_offset + index * 4; + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + + phy_addr_offset, stream->reg_offset); + + /* Group Enable */ + reg_val = ACP_SRAM_PTE_OFFSET + offset; + snd_sof_dsp_write(sdev, ACP_DSP_BAR, pte_reg, reg_val | BIT(31)); + snd_sof_dsp_write(sdev, ACP_DSP_BAR, pte_size, PAGE_SIZE_4K_ENABLE); + + for (page_idx = 0; page_idx < stream->num_pages; page_idx++) { + addr = snd_sgbuf_get_addr(stream->dmab, page_idx * PAGE_SIZE); + + /* Load the low address of page int ACP SRAM through SRBM */ + low = lower_32_bits(addr); + high = upper_32_bits(addr); + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + offset, low); + + high |= BIT(31); + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + offset + 4, high); + /* Move to next physically contiguous page */ + offset += 8; + } + + return 0; +} + +struct acp_dsp_stream *acp_dsp_stream_get(struct snd_sof_dev *sdev, int tag) +{ + struct acp_dev_data *adata = sdev->pdata->hw_pdata; + struct acp_dsp_stream *stream = adata->stream_buf; + int i; + + for (i = 0; i < ACP_MAX_STREAM; i++, stream++) { + if (stream->active) + continue; + + /* return stream if tag not specified*/ + if (!tag) { + stream->active = 1; + return stream; + } + + /* check if this is the requested stream tag */ + if (stream->stream_tag == tag) { + stream->active = 1; + return stream; + } + } + + dev_err(sdev->dev, "stream %d active or no inactive stream\n", tag); + return NULL; +} +EXPORT_SYMBOL_NS(acp_dsp_stream_get, SND_SOC_SOF_AMD_COMMON); + +int acp_dsp_stream_put(struct snd_sof_dev *sdev, + struct acp_dsp_stream *acp_stream) +{ + struct acp_dev_data *adata = sdev->pdata->hw_pdata; + struct acp_dsp_stream *stream = adata->stream_buf; + int i; + + /* Free an active stream */ + for (i = 0; i < ACP_MAX_STREAM; i++, stream++) { + if (stream == acp_stream) { + stream->active = 0; + return 0; + } + } + + dev_err(sdev->dev, "Cannot find active stream tag %d\n", acp_stream->stream_tag); + return -EINVAL; +} +EXPORT_SYMBOL_NS(acp_dsp_stream_put, SND_SOC_SOF_AMD_COMMON); + +int acp_dsp_stream_init(struct snd_sof_dev *sdev) +{ + struct acp_dev_data *adata = sdev->pdata->hw_pdata; + int i; + + for (i = 0; i < ACP_MAX_STREAM; i++) { + adata->stream_buf[i].sdev = sdev; + adata->stream_buf[i].active = 0; + adata->stream_buf[i].stream_tag = i + 1; + } + return 0; +} +EXPORT_SYMBOL_NS(acp_dsp_stream_init, SND_SOC_SOF_AMD_COMMON); diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c index 43a57d15e3ca..74ede28aa8d8 100644 --- a/sound/soc/sof/amd/acp.c +++ b/sound/soc/sof/amd/acp.c @@ -363,6 +363,8 @@ int amd_sof_acp_probe(struct snd_sof_dev *sdev)
acp_memory_init(sdev);
+ acp_dsp_stream_init(sdev); + return 0; } EXPORT_SYMBOL_NS(amd_sof_acp_probe, SND_SOC_SOF_AMD_COMMON); diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h index ac8340119125..36d000c3f792 100644 --- a/sound/soc/sof/amd/acp.h +++ b/sound/soc/sof/amd/acp.h @@ -13,6 +13,8 @@
#include "../sof-priv.h"
+#define ACP_MAX_STREAM 8 + #define ACP_DSP_BAR 0
#define ACP_REG_POLL_INTERVAL 500 @@ -114,6 +116,17 @@ struct scratch_reg_conf { unsigned int reserve[]; };
+struct acp_dsp_stream { + struct list_head list; + struct snd_sof_dev *sdev; + struct snd_pcm_substream *substream; + struct snd_dma_buffer *dmab; + int num_pages; + int stream_tag; + int active; + unsigned int reg_offset; +}; + /* Common device data struct for ACP devices */ struct acp_dev_data { struct snd_sof_dev *dev; @@ -125,6 +138,7 @@ struct acp_dev_data { dma_addr_t dma_addr; u8 *data_buf; struct dma_descriptor dscr_info[ACP_MAX_DESC]; + struct acp_dsp_stream stream_buf[ACP_MAX_STREAM]; };
void memcpy_to_scratch(struct snd_sof_dev *sdev, u32 offset, unsigned int *src, size_t bytes); @@ -165,5 +179,19 @@ int acp_sof_ipc_pcm_params(struct snd_sof_dev *sdev, struct snd_pcm_substream *s void acp_mailbox_write(struct snd_sof_dev *sdev, u32 offset, void *message, size_t bytes); void acp_mailbox_read(struct snd_sof_dev *sdev, u32 offset, void *message, size_t bytes);
+/* ACP - DSP stream callbacks */ +int acp_dsp_stream_config(struct snd_sof_dev *sdev, struct acp_dsp_stream *stream); +int acp_dsp_stream_init(struct snd_sof_dev *sdev); +struct acp_dsp_stream *acp_dsp_stream_get(struct snd_sof_dev *sdev, int tag); +int acp_dsp_stream_put(struct snd_sof_dev *sdev, struct acp_dsp_stream *acp_stream); + +/* + * DSP PCM Operations. + */ +int acp_pcm_open(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream); +int acp_pcm_close(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream); +int acp_pcm_hw_params(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct sof_ipc_stream_params *ipc_params); + extern const struct snd_sof_dsp_ops sof_renoir_ops; #endif diff --git a/sound/soc/sof/amd/renoir.c b/sound/soc/sof/amd/renoir.c index ca5582b3f82d..0241c5dce156 100644 --- a/sound/soc/sof/amd/renoir.c +++ b/sound/soc/sof/amd/renoir.c @@ -140,6 +140,17 @@ const struct snd_sof_dsp_ops sof_renoir_ops = { /* DAI drivers */ .drv = renoir_sof_dai, .num_drv = ARRAY_SIZE(renoir_sof_dai), + + /* stream callbacks */ + .pcm_open = acp_pcm_open, + .pcm_close = acp_pcm_close, + .pcm_hw_params = acp_pcm_hw_params, + + .hw_info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, }; EXPORT_SYMBOL(sof_renoir_ops);