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145 lines
3.9 KiB
145 lines
3.9 KiB
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ |
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/* |
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* This file is provided under a dual BSD/GPLv2 license. When using or |
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* redistributing this file, you may do so under either license. |
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* |
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* Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. |
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* |
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* Author: Ajit Kumar Pandey <[email protected]> |
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*/ |
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#ifndef __AMD_ACP_H |
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#define __AMD_ACP_H |
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#include <sound/pcm.h> |
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#include <sound/soc-acpi.h> |
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#include "chip_offset_byte.h" |
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#define I2S_SP_INSTANCE 0x00 |
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#define I2S_BT_INSTANCE 0x01 |
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#define MEM_WINDOW_START 0x4000000 |
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#define ACP_I2S_REG_START 0x1242400 |
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#define ACP_I2S_REG_END 0x1242810 |
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#define ACP3x_I2STDM_REG_START 0x1242400 |
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#define ACP3x_I2STDM_REG_END 0x1242410 |
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#define ACP3x_BT_TDM_REG_START 0x1242800 |
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#define ACP3x_BT_TDM_REG_END 0x1242810 |
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#define I2S_MODE 0x04 |
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#define I2S_RX_THRESHOLD 27 |
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#define I2S_TX_THRESHOLD 28 |
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#define BT_TX_THRESHOLD 26 |
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#define BT_RX_THRESHOLD 25 |
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#define ACP_SRAM_PTE_OFFSET 0x02052800 |
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#define ACP_SRAM_SP_PB_PTE_OFFSET 0x0 |
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#define ACP_SRAM_SP_CP_PTE_OFFSET 0x100 |
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#define ACP_SRAM_BT_PB_PTE_OFFSET 0x200 |
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#define ACP_SRAM_BT_CP_PTE_OFFSET 0x300 |
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#define PAGE_SIZE_4K_ENABLE 0x2 |
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#define I2S_SP_TX_MEM_WINDOW_START 0x4000000 |
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#define I2S_SP_RX_MEM_WINDOW_START 0x4020000 |
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#define I2S_BT_TX_MEM_WINDOW_START 0x4040000 |
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#define I2S_BT_RX_MEM_WINDOW_START 0x4060000 |
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#define SP_PB_FIFO_ADDR_OFFSET 0x500 |
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#define SP_CAPT_FIFO_ADDR_OFFSET 0x700 |
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#define BT_PB_FIFO_ADDR_OFFSET 0x900 |
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#define BT_CAPT_FIFO_ADDR_OFFSET 0xB00 |
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#define PLAYBACK_MIN_NUM_PERIODS 2 |
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#define PLAYBACK_MAX_NUM_PERIODS 8 |
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#define PLAYBACK_MAX_PERIOD_SIZE 8192 |
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#define PLAYBACK_MIN_PERIOD_SIZE 1024 |
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#define CAPTURE_MIN_NUM_PERIODS 2 |
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#define CAPTURE_MAX_NUM_PERIODS 8 |
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#define CAPTURE_MAX_PERIOD_SIZE 8192 |
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#define CAPTURE_MIN_PERIOD_SIZE 1024 |
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#define MAX_BUFFER 65536 |
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#define MIN_BUFFER MAX_BUFFER |
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#define FIFO_SIZE 0x100 |
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#define DMA_SIZE 0x40 |
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#define FRM_LEN 0x100 |
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#define ACP3x_ITER_IRER_SAMP_LEN_MASK 0x38 |
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#define ACP_MAX_STREAM 6 |
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struct acp_stream { |
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struct snd_pcm_substream *substream; |
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int irq_bit; |
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int dai_id; |
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int id; |
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u64 bytescount; |
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u32 reg_offset; |
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u32 pte_offset; |
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u32 fifo_offset; |
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}; |
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struct acp_dev_data { |
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char *name; |
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struct device *dev; |
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void __iomem *acp_base; |
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unsigned int i2s_irq; |
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/* SOC specific dais */ |
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struct snd_soc_dai_driver *dai_driver; |
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int num_dai; |
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struct acp_stream *stream[ACP_MAX_STREAM]; |
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struct snd_soc_acpi_mach *machines; |
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struct platform_device *mach_dev; |
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}; |
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extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops; |
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int asoc_acp_i2s_probe(struct snd_soc_dai *dai); |
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int acp_platform_register(struct device *dev); |
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int acp_platform_unregister(struct device *dev); |
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int acp_machine_select(struct acp_dev_data *adata); |
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static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction) |
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{ |
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u64 byte_count, low = 0, high = 0; |
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if (direction == SNDRV_PCM_STREAM_PLAYBACK) { |
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switch (dai_id) { |
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case I2S_BT_INSTANCE: |
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high = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_HIGH); |
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low = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_LOW); |
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break; |
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case I2S_SP_INSTANCE: |
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high = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH); |
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low = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_LOW); |
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break; |
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default: |
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dev_err(adata->dev, "Invalid dai id %x\n", dai_id); |
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return -EINVAL; |
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} |
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} else { |
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switch (dai_id) { |
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case I2S_BT_INSTANCE: |
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high = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_HIGH); |
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low = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_LOW); |
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break; |
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case I2S_SP_INSTANCE: |
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high = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH); |
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low = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_LOW); |
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break; |
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default: |
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dev_err(adata->dev, "Invalid dai id %x\n", dai_id); |
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return -EINVAL; |
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} |
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} |
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/* Get 64 bit value from two 32 bit registers */ |
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byte_count = (high << 32) | low; |
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return byte_count; |
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} |
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#endif
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