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Diffstat (limited to 'sound/soc/amd/acp/amd.h')
| -rw-r--r-- | sound/soc/amd/acp/amd.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h new file mode 100644 index 000000000000..8eee3d34774b --- /dev/null +++ b/sound/soc/amd/acp/amd.h @@ -0,0 +1,145 @@ +/* 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. All rights reserved. + * + * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> + */ + +#ifndef __AMD_ACP_H +#define __AMD_ACP_H + +#include <sound/pcm.h> +#include <sound/soc-acpi.h> +#include "chip_offset_byte.h" + +#define I2S_SP_INSTANCE 0x00 +#define I2S_BT_INSTANCE 0x01 + +#define MEM_WINDOW_START 0x4000000 + +#define ACP_I2S_REG_START 0x1242400 +#define ACP_I2S_REG_END 0x1242810 +#define ACP3x_I2STDM_REG_START 0x1242400 +#define ACP3x_I2STDM_REG_END 0x1242410 +#define ACP3x_BT_TDM_REG_START 0x1242800 +#define ACP3x_BT_TDM_REG_END 0x1242810 +#define I2S_MODE 0x04 +#define I2S_RX_THRESHOLD 27 +#define I2S_TX_THRESHOLD 28 +#define BT_TX_THRESHOLD 26 +#define BT_RX_THRESHOLD 25 + +#define ACP_SRAM_PTE_OFFSET 0x02052800 + +#define ACP_SRAM_SP_PB_PTE_OFFSET 0x0 +#define ACP_SRAM_SP_CP_PTE_OFFSET 0x100 +#define ACP_SRAM_BT_PB_PTE_OFFSET 0x200 +#define ACP_SRAM_BT_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_BT_TX_MEM_WINDOW_START 0x4040000 +#define I2S_BT_RX_MEM_WINDOW_START 0x4060000 + +#define SP_PB_FIFO_ADDR_OFFSET 0x500 +#define SP_CAPT_FIFO_ADDR_OFFSET 0x700 +#define BT_PB_FIFO_ADDR_OFFSET 0x900 +#define BT_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 65536 +#define MIN_BUFFER MAX_BUFFER +#define FIFO_SIZE 0x100 +#define DMA_SIZE 0x40 +#define FRM_LEN 0x100 + +#define ACP3x_ITER_IRER_SAMP_LEN_MASK 0x38 + +#define ACP_MAX_STREAM 6 + +struct acp_stream { + struct snd_pcm_substream *substream; + int irq_bit; + int dai_id; + int id; + u64 bytescount; + u32 reg_offset; + u32 pte_offset; + u32 fifo_offset; +}; + +struct acp_dev_data { + char *name; + struct device *dev; + void __iomem *acp_base; + unsigned int i2s_irq; + + /* SOC specific dais */ + struct snd_soc_dai_driver *dai_driver; + int num_dai; + + struct acp_stream *stream[ACP_MAX_STREAM]; + + struct snd_soc_acpi_mach *machines; + struct platform_device *mach_dev; +}; + +extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops; + +int asoc_acp_i2s_probe(struct snd_soc_dai *dai); +int acp_platform_register(struct device *dev); +int acp_platform_unregister(struct device *dev); + +int acp_machine_select(struct acp_dev_data *adata); + +static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction) +{ + u64 byte_count, low = 0, high = 0; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + switch (dai_id) { + case I2S_BT_INSTANCE: + high = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_LOW); + break; + case I2S_SP_INSTANCE: + high = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_LOW); + break; + default: + dev_err(adata->dev, "Invalid dai id %x\n", dai_id); + return -EINVAL; + } + } else { + switch (dai_id) { + case I2S_BT_INSTANCE: + high = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_LOW); + break; + case I2S_SP_INSTANCE: + high = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_LOW); + break; + default: + dev_err(adata->dev, "Invalid dai id %x\n", dai_id); + return -EINVAL; + } + } + /* Get 64 bit value from two 32 bit registers */ + byte_count = (high << 32) | low; + + return byte_count; +} + +#endif |