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Diffstat (limited to '')
| -rw-r--r-- | sound/soc/amd/vangogh/acp5x.h | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h new file mode 100644 index 000000000..ac1936a8c --- /dev/null +++ b/sound/soc/amd/vangogh/acp5x.h @@ -0,0 +1,224 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * AMD ALSA SoC PCM Driver + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved. + */ + +#include "vg_chip_offset_byte.h" +#include <sound/pcm.h> + +#define ACP5x_PHY_BASE_ADDRESS 0x1240000 +#define ACP_DEVICE_ID 0x15E2 +#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001 + +#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01 +#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00 +#define ACP_PGFSM_STATUS_MASK 0x03 +#define ACP_POWERED_ON 0x00 +#define ACP_POWER_ON_IN_PROGRESS 0x01 +#define ACP_POWERED_OFF 0x02 +#define ACP_POWER_OFF_IN_PROGRESS 0x03 + +#define ACP_ERR_INTR_MASK 0x20000000 +#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF + +#define ACP5x_DEVS 4 +#define ACP5x_REG_START 0x1240000 +#define ACP5x_REG_END 0x1250200 +#define ACP5x_I2STDM_REG_START 0x1242400 +#define ACP5x_I2STDM_REG_END 0x1242410 +#define ACP5x_HS_TDM_REG_START 0x1242814 +#define ACP5x_HS_TDM_REG_END 0x1242824 +#define I2S_MODE 0 +#define ACP5x_I2S_MODE 1 +#define ACP5x_RES 4 +#define I2S_RX_THRESHOLD 27 +#define I2S_TX_THRESHOLD 28 +#define HS_TX_THRESHOLD 24 +#define HS_RX_THRESHOLD 23 + +#define I2S_SP_INSTANCE 1 +#define I2S_HS_INSTANCE 2 + +#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 + +#define I2S_MASTER_MODE_ENABLE 1 +#define I2S_MASTER_MODE_DISABLE 0 + +#define SLOT_WIDTH_8 8 +#define SLOT_WIDTH_16 16 +#define SLOT_WIDTH_24 24 +#define SLOT_WIDTH_32 32 +#define TDM_ENABLE 1 +#define TDM_DISABLE 0 +#define ACP5x_ITER_IRER_SAMP_LEN_MASK 0x38 + +struct i2s_dev_data { + bool tdm_mode; + bool master_mode; + int i2s_irq; + u16 i2s_instance; + u32 tdm_fmt; + void __iomem *acp5x_base; + struct snd_pcm_substream *play_stream; + struct snd_pcm_substream *capture_stream; + struct snd_pcm_substream *i2ssp_play_stream; + 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; + u32 lrclk_div; + u32 bclk_div; +}; + +union acp_dma_count { + struct { + u32 low; + u32 high; + } bcount; + u64 bytescount; +}; + +struct acp5x_platform_info { + u16 play_i2s_instance; + u16 cap_i2s_instance; +}; + +union acp_i2stdm_mstrclkgen { + struct { + u32 i2stdm_master_mode : 1; + u32 i2stdm_format_mode : 1; + u32 i2stdm_lrclk_div_val : 9; + u32 i2stdm_bclk_div_val : 11; + u32:10; + } bitfields, bits; + u32 u32_all; +}; + +/* common header file uses exact offset rather than relative + * offset which requires subtraction logic from base_addr + * for accessing ACP5x MMIO space registers + */ +static inline u32 acp_readl(void __iomem *base_addr) +{ + return readl(base_addr - ACP5x_PHY_BASE_ADDRESS); +} + +static inline void acp_writel(u32 val, void __iomem *base_addr) +{ + writel(val, base_addr - ACP5x_PHY_BASE_ADDRESS); +} + +int snd_amd_acp_find_config(struct pci_dev *pci); + +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; +} + +static inline void acp5x_set_i2s_clk(struct i2s_dev_data *adata, + struct i2s_stream_instance *rtd) +{ + union acp_i2stdm_mstrclkgen mclkgen; + u32 master_reg; + + switch (rtd->i2s_instance) { + case I2S_HS_INSTANCE: + master_reg = ACP_I2STDM2_MSTRCLKGEN; + break; + case I2S_SP_INSTANCE: + default: + master_reg = ACP_I2STDM0_MSTRCLKGEN; + break; + } + + mclkgen.bits.i2stdm_master_mode = 0x1; + if (adata->tdm_mode) + mclkgen.bits.i2stdm_format_mode = 0x01; + else + mclkgen.bits.i2stdm_format_mode = 0x00; + + mclkgen.bits.i2stdm_bclk_div_val = rtd->bclk_div; + mclkgen.bits.i2stdm_lrclk_div_val = rtd->lrclk_div; + acp_writel(mclkgen.u32_all, rtd->acp5x_base + master_reg); +} |