/* SPDX-License-Identifier: GPL-2.0+ */ /* * AMD ALSA SoC PDM Driver * * Copyright 2020 Advanced Micro Devices, Inc. */ #include "rn_chip_offset_byte.h" #define ACP_DEVS 3 #define ACP_PHY_BASE_ADDRESS 0x1240000 #define ACP_REG_START 0x1240000 #define ACP_REG_END 0x1250200 #define ACP_DEVICE_ID 0x15E2 #define ACP_POWER_ON 0x00 #define ACP_POWER_ON_IN_PROGRESS 0x01 #define ACP_POWER_OFF 0x02 #define ACP_POWER_OFF_IN_PROGRESS 0x03 #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_ERROR_MASK 0x20000000 #define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF #define PDM_DMA_STAT 0x10 #define PDM_DMA_INTR_MASK 0x10000 #define ACP_ERROR_STAT 29 #define PDM_DECIMATION_FACTOR 0x2 #define ACP_PDM_CLK_FREQ_MASK 0x07 #define ACP_WOV_GAIN_CONTROL GENMASK(4, 3) #define ACP_PDM_ENABLE 0x01 #define ACP_PDM_DISABLE 0x00 #define ACP_PDM_DMA_EN_STATUS 0x02 #define TWO_CH 0x02 #define DELAY_US 5 #define ACP_COUNTER 20000 /* time in ms for runtime suspend delay */ #define ACP_SUSPEND_DELAY_MS 2000 #define ACP_SRAM_PTE_OFFSET 0x02050000 #define PAGE_SIZE_4K_ENABLE 0x2 #define MEM_WINDOW_START 0x4000000 #define CAPTURE_MIN_NUM_PERIODS 4 #define CAPTURE_MAX_NUM_PERIODS 4 #define CAPTURE_MAX_PERIOD_SIZE 8192 #define CAPTURE_MIN_PERIOD_SIZE 4096 #define MAX_BUFFER (CAPTURE_MAX_PERIOD_SIZE * CAPTURE_MAX_NUM_PERIODS) #define MIN_BUFFER MAX_BUFFER #define ACP_DMIC_AUTO -1 struct pdm_dev_data { u32 pdm_irq; void __iomem *acp_base; struct snd_pcm_substream *capture_stream; }; struct pdm_stream_instance { u16 num_pages; u16 channels; dma_addr_t dma_addr; u64 bytescount; void __iomem *acp_base; }; union acp_pdm_dma_count { struct { u32 low; u32 high; } bcount; u64 bytescount; }; static inline u32 rn_readl(void __iomem *base_addr) { return readl(base_addr - ACP_PHY_BASE_ADDRESS); } static inline void rn_writel(u32 val, void __iomem *base_addr) { writel(val, base_addr - ACP_PHY_BASE_ADDRESS); } /* Machine configuration */ int snd_amd_acp_find_config(struct pci_dev *pci);