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Diffstat (limited to '')
| -rw-r--r-- | sound/soc/amd/acp/amd.h | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h new file mode 100644 index 000000000..12a176a50 --- /dev/null +++ b/sound/soc/amd/acp/amd.h @@ -0,0 +1,253 @@ +/* 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.h> +#include <sound/soc-acpi.h> +#include <sound/soc-dai.h> + +#include "chip_offset_byte.h" + +#define ACP3X_DEV 3 +#define ACP6X_DEV 6 + +#define DMIC_INSTANCE 0x00 +#define I2S_SP_INSTANCE 0x01 +#define I2S_BT_INSTANCE 0x02 +#define I2S_HS_INSTANCE 0x03 + +#define MEM_WINDOW_START 0x4080000 + +#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 THRESHOLD(bit, base) ((bit) + (base)) +#define I2S_RX_THRESHOLD(base) THRESHOLD(7, base) +#define I2S_TX_THRESHOLD(base) THRESHOLD(8, base) +#define BT_TX_THRESHOLD(base) THRESHOLD(6, base) +#define BT_RX_THRESHOLD(base) THRESHOLD(5, base) +#define HS_TX_THRESHOLD(base) THRESHOLD(4, base) +#define HS_RX_THRESHOLD(base) THRESHOLD(3, base) + +#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 ACP_SRAM_PDM_PTE_OFFSET 0x400 +#define ACP_SRAM_HS_PB_PTE_OFFSET 0x500 +#define ACP_SRAM_HS_CP_PTE_OFFSET 0x600 +#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 I2S_HS_TX_MEM_WINDOW_START 0x40A0000 +#define I2S_HS_RX_MEM_WINDOW_START 0x40C0000 + +#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 HS_PB_FIFO_ADDR_OFFSET 0xD00 +#define HS_CAPT_FIFO_ADDR_OFFSET 0xF00 +#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 8 + +#define TDM_ENABLE 1 +#define TDM_DISABLE 0 + +#define SLOT_WIDTH_8 0x8 +#define SLOT_WIDTH_16 0x10 +#define SLOT_WIDTH_24 0x18 +#define SLOT_WIDTH_32 0x20 + +struct acp_chip_info { + char *name; /* Platform name */ + unsigned int acp_rev; /* ACP Revision id */ + void __iomem *base; /* ACP memory PCI base */ +}; + +struct acp_stream { + struct list_head list; + struct snd_pcm_substream *substream; + int irq_bit; + int dai_id; + int id; + int dir; + u64 bytescount; + u32 reg_offset; + u32 pte_offset; + u32 fifo_offset; +}; + +struct acp_resource { + int offset; + int no_of_ctrls; + int irqp_used; + bool soc_mclk; + u32 irq_reg_offset; + u32 i2s_pin_cfg_offset; + int i2s_mode; + u64 scratch_reg_offset; + u64 sram_pte_offset; +}; + +struct acp_dev_data { + char *name; + struct device *dev; + void __iomem *acp_base; + unsigned int i2s_irq; + + bool tdm_mode; + /* SOC specific dais */ + struct snd_soc_dai_driver *dai_driver; + int num_dai; + + struct list_head stream_list; + spinlock_t acp_lock; + + struct snd_soc_acpi_mach *machines; + struct platform_device *mach_dev; + + u32 bclk_div; + u32 lrclk_div; + + struct acp_resource *rsrc; + u32 tdm_tx_fmt[3]; + u32 tdm_rx_fmt[3]; +}; + +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; +}; + +extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops; +extern const struct snd_soc_dai_ops acp_dmic_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); + +/* Machine configuration */ +int snd_amd_acp_find_config(struct pci_dev *pci); + +static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction) +{ + u64 byte_count = 0, 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; + case I2S_HS_INSTANCE: + high = readl(adata->acp_base + ACP_HS_TX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_HS_TX_LINEARPOSITIONCNTR_LOW); + break; + default: + dev_err(adata->dev, "Invalid dai id %x\n", dai_id); + goto POINTER_RETURN_BYTES; + } + } 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; + case I2S_HS_INSTANCE: + high = readl(adata->acp_base + ACP_HS_RX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_HS_RX_LINEARPOSITIONCNTR_LOW); + break; + case DMIC_INSTANCE: + high = readl(adata->acp_base + ACP_WOV_RX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_WOV_RX_LINEARPOSITIONCNTR_LOW); + break; + default: + dev_err(adata->dev, "Invalid dai id %x\n", dai_id); + goto POINTER_RETURN_BYTES; + } + } + /* Get 64 bit value from two 32 bit registers */ + byte_count = (high << 32) | low; + +POINTER_RETURN_BYTES: + return byte_count; +} + +static inline void acp_set_i2s_clk(struct acp_dev_data *adata, int dai_id) +{ + union acp_i2stdm_mstrclkgen mclkgen; + u32 master_reg; + + switch (dai_id) { + case I2S_SP_INSTANCE: + master_reg = ACP_I2STDM0_MSTRCLKGEN; + break; + case I2S_BT_INSTANCE: + master_reg = ACP_I2STDM1_MSTRCLKGEN; + break; + case I2S_HS_INSTANCE: + master_reg = ACP_I2STDM2_MSTRCLKGEN; + break; + default: + master_reg = ACP_I2STDM0_MSTRCLKGEN; + break; + } + + mclkgen.bits.i2stdm_master_mode = 0x1; + mclkgen.bits.i2stdm_format_mode = 0x00; + + mclkgen.bits.i2stdm_bclk_div_val = adata->bclk_div; + mclkgen.bits.i2stdm_lrclk_div_val = adata->lrclk_div; + writel(mclkgen.u32_all, adata->acp_base + master_reg); +} +#endif |