1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ 2/* 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. 7 * 8 * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> 9 */ 10 11#ifndef __AMD_ACP_H 12#define __AMD_ACP_H 13 14#include <sound/pcm.h> 15#include <sound/soc.h> 16#include <sound/soc-acpi.h> 17#include <sound/soc-dai.h> 18 19#include "chip_offset_byte.h" 20 21#define ACP3X_DEV 3 22#define ACP6X_DEV 6 23#define ACP63_DEV 0x63 24#define ACP70_DEV 0x70 25 26#define DMIC_INSTANCE 0x00 27#define I2S_SP_INSTANCE 0x01 28#define I2S_BT_INSTANCE 0x02 29#define I2S_HS_INSTANCE 0x03 30 31#define MEM_WINDOW_START 0x4080000 32 33#define ACP_I2S_REG_START 0x1242400 34#define ACP_I2S_REG_END 0x1242810 35#define ACP3x_I2STDM_REG_START 0x1242400 36#define ACP3x_I2STDM_REG_END 0x1242410 37#define ACP3x_BT_TDM_REG_START 0x1242800 38#define ACP3x_BT_TDM_REG_END 0x1242810 39 40#define THRESHOLD(bit, base) ((bit) + (base)) 41#define I2S_RX_THRESHOLD(base) THRESHOLD(7, base) 42#define I2S_TX_THRESHOLD(base) THRESHOLD(8, base) 43#define BT_TX_THRESHOLD(base) THRESHOLD(6, base) 44#define BT_RX_THRESHOLD(base) THRESHOLD(5, base) 45#define HS_TX_THRESHOLD(base) THRESHOLD(4, base) 46#define HS_RX_THRESHOLD(base) THRESHOLD(3, base) 47 48#define ACP_SRAM_SP_PB_PTE_OFFSET 0x0 49#define ACP_SRAM_SP_CP_PTE_OFFSET 0x100 50#define ACP_SRAM_BT_PB_PTE_OFFSET 0x200 51#define ACP_SRAM_BT_CP_PTE_OFFSET 0x300 52#define ACP_SRAM_PDM_PTE_OFFSET 0x400 53#define ACP_SRAM_HS_PB_PTE_OFFSET 0x500 54#define ACP_SRAM_HS_CP_PTE_OFFSET 0x600 55#define PAGE_SIZE_4K_ENABLE 0x2 56 57#define I2S_SP_TX_MEM_WINDOW_START 0x4000000 58#define I2S_SP_RX_MEM_WINDOW_START 0x4020000 59#define I2S_BT_TX_MEM_WINDOW_START 0x4040000 60#define I2S_BT_RX_MEM_WINDOW_START 0x4060000 61#define I2S_HS_TX_MEM_WINDOW_START 0x40A0000 62#define I2S_HS_RX_MEM_WINDOW_START 0x40C0000 63 64#define SP_PB_FIFO_ADDR_OFFSET 0x500 65#define SP_CAPT_FIFO_ADDR_OFFSET 0x700 66#define BT_PB_FIFO_ADDR_OFFSET 0x900 67#define BT_CAPT_FIFO_ADDR_OFFSET 0xB00 68#define HS_PB_FIFO_ADDR_OFFSET 0xD00 69#define HS_CAPT_FIFO_ADDR_OFFSET 0xF00 70#define PLAYBACK_MIN_NUM_PERIODS 2 71#define PLAYBACK_MAX_NUM_PERIODS 8 72#define PLAYBACK_MAX_PERIOD_SIZE 8192 73#define PLAYBACK_MIN_PERIOD_SIZE 1024 74#define CAPTURE_MIN_NUM_PERIODS 2 75#define CAPTURE_MAX_NUM_PERIODS 8 76#define CAPTURE_MAX_PERIOD_SIZE 8192 77#define CAPTURE_MIN_PERIOD_SIZE 1024 78 79#define MAX_BUFFER 65536 80#define MIN_BUFFER MAX_BUFFER 81#define FIFO_SIZE 0x100 82#define DMA_SIZE 0x40 83#define FRM_LEN 0x100 84 85#define ACP3x_ITER_IRER_SAMP_LEN_MASK 0x38 86 87#define ACP_MAX_STREAM 8 88 89#define TDM_ENABLE 1 90#define TDM_DISABLE 0 91 92#define SLOT_WIDTH_8 0x8 93#define SLOT_WIDTH_16 0x10 94#define SLOT_WIDTH_24 0x18 95#define SLOT_WIDTH_32 0x20 96 97#define ACP6X_PGFSM_CONTROL 0x1024 98#define ACP6X_PGFSM_STATUS 0x1028 99 100#define ACP63_PGFSM_CONTROL ACP6X_PGFSM_CONTROL 101#define ACP63_PGFSM_STATUS ACP6X_PGFSM_STATUS 102 103#define ACP70_PGFSM_CONTROL ACP6X_PGFSM_CONTROL 104#define ACP70_PGFSM_STATUS ACP6X_PGFSM_STATUS 105 106#define ACP_SOFT_RST_DONE_MASK 0x00010001 107 108#define ACP_PGFSM_CNTL_POWER_ON_MASK 0xffffffff 109#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00 110#define ACP_PGFSM_STATUS_MASK 0x03 111#define ACP_POWERED_ON 0x00 112#define ACP_POWER_ON_IN_PROGRESS 0x01 113#define ACP_POWERED_OFF 0x02 114#define ACP_POWER_OFF_IN_PROGRESS 0x03 115 116#define ACP_ERROR_MASK 0x20000000 117#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xffffffff 118 119#define ACP_TIMEOUT 500 120#define DELAY_US 5 121#define ACP_SUSPEND_DELAY_MS 2000 122 123#define PDM_DMA_STAT 0x10 124#define PDM_DMA_INTR_MASK 0x10000 125#define PDM_DEC_64 0x2 126#define PDM_CLK_FREQ_MASK 0x07 127#define PDM_MISC_CTRL_MASK 0x10 128#define PDM_ENABLE 0x01 129#define PDM_DISABLE 0x00 130#define DMA_EN_MASK 0x02 131#define DELAY_US 5 132#define PDM_TIMEOUT 1000 133#define ACP_REGION2_OFFSET 0x02000000 134 135struct acp_chip_info { 136 char *name; /* Platform name */ 137 unsigned int acp_rev; /* ACP Revision id */ 138 void __iomem *base; /* ACP memory PCI base */ 139 struct platform_device *chip_pdev; 140 unsigned int flag; /* Distinguish b/w Legacy or Only PDM */ 141}; 142 143struct acp_stream { 144 struct list_head list; 145 struct snd_pcm_substream *substream; 146 int irq_bit; 147 int dai_id; 148 int id; 149 int dir; 150 u64 bytescount; 151 u32 reg_offset; 152 u32 pte_offset; 153 u32 fifo_offset; 154}; 155 156struct acp_resource { 157 int offset; 158 int no_of_ctrls; 159 int irqp_used; 160 bool soc_mclk; 161 u32 irq_reg_offset; 162 u32 i2s_pin_cfg_offset; 163 int i2s_mode; 164 u64 scratch_reg_offset; 165 u64 sram_pte_offset; 166}; 167 168struct acp_dev_data { 169 char *name; 170 struct device *dev; 171 void __iomem *acp_base; 172 unsigned int i2s_irq; 173 174 bool tdm_mode; 175 /* SOC specific dais */ 176 struct snd_soc_dai_driver *dai_driver; 177 int num_dai; 178 179 struct list_head stream_list; 180 spinlock_t acp_lock; 181 182 struct snd_soc_acpi_mach *machines; 183 struct platform_device *mach_dev; 184 185 u32 bclk_div; 186 u32 lrclk_div; 187 188 struct acp_resource *rsrc; 189 u32 ch_mask; 190 u32 tdm_tx_fmt[3]; 191 u32 tdm_rx_fmt[3]; 192 u32 xfer_tx_resolution[3]; 193 u32 xfer_rx_resolution[3]; 194 unsigned int flag; 195 unsigned int platform; 196}; 197 198enum acp_config { 199 ACP_CONFIG_0 = 0, 200 ACP_CONFIG_1, 201 ACP_CONFIG_2, 202 ACP_CONFIG_3, 203 ACP_CONFIG_4, 204 ACP_CONFIG_5, 205 ACP_CONFIG_6, 206 ACP_CONFIG_7, 207 ACP_CONFIG_8, 208 ACP_CONFIG_9, 209 ACP_CONFIG_10, 210 ACP_CONFIG_11, 211 ACP_CONFIG_12, 212 ACP_CONFIG_13, 213 ACP_CONFIG_14, 214 ACP_CONFIG_15, 215}; 216 217extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops; 218extern const struct snd_soc_dai_ops acp_dmic_dai_ops; 219 220int acp_platform_register(struct device *dev); 221int acp_platform_unregister(struct device *dev); 222 223int acp_machine_select(struct acp_dev_data *adata); 224 225int smn_read(struct pci_dev *dev, u32 smn_addr); 226int smn_write(struct pci_dev *dev, u32 smn_addr, u32 data); 227 228int acp_init(struct acp_chip_info *chip); 229int acp_deinit(struct acp_chip_info *chip); 230void acp_enable_interrupts(struct acp_dev_data *adata); 231void acp_disable_interrupts(struct acp_dev_data *adata); 232/* Machine configuration */ 233int snd_amd_acp_find_config(struct pci_dev *pci); 234 235void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream *stream); 236void config_acp_dma(struct acp_dev_data *adata, struct acp_stream *stream, int size); 237void restore_acp_pdm_params(struct snd_pcm_substream *substream, 238 struct acp_dev_data *adata); 239 240int restore_acp_i2s_params(struct snd_pcm_substream *substream, 241 struct acp_dev_data *adata, struct acp_stream *stream); 242 243int check_acp_pdm(struct pci_dev *pci, struct acp_chip_info *chip); 244 245static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction) 246{ 247 u64 byte_count = 0, low = 0, high = 0; 248 249 if (direction == SNDRV_PCM_STREAM_PLAYBACK) { 250 switch (dai_id) { 251 case I2S_BT_INSTANCE: 252 high = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_HIGH); 253 low = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_LOW); 254 break; 255 case I2S_SP_INSTANCE: 256 high = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH); 257 low = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_LOW); 258 break; 259 case I2S_HS_INSTANCE: 260 high = readl(adata->acp_base + ACP_HS_TX_LINEARPOSITIONCNTR_HIGH); 261 low = readl(adata->acp_base + ACP_HS_TX_LINEARPOSITIONCNTR_LOW); 262 break; 263 default: 264 dev_err(adata->dev, "Invalid dai id %x\n", dai_id); 265 goto POINTER_RETURN_BYTES; 266 } 267 } else { 268 switch (dai_id) { 269 case I2S_BT_INSTANCE: 270 high = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_HIGH); 271 low = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_LOW); 272 break; 273 case I2S_SP_INSTANCE: 274 high = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH); 275 low = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_LOW); 276 break; 277 case I2S_HS_INSTANCE: 278 high = readl(adata->acp_base + ACP_HS_RX_LINEARPOSITIONCNTR_HIGH); 279 low = readl(adata->acp_base + ACP_HS_RX_LINEARPOSITIONCNTR_LOW); 280 break; 281 case DMIC_INSTANCE: 282 high = readl(adata->acp_base + ACP_WOV_RX_LINEARPOSITIONCNTR_HIGH); 283 low = readl(adata->acp_base + ACP_WOV_RX_LINEARPOSITIONCNTR_LOW); 284 break; 285 default: 286 dev_err(adata->dev, "Invalid dai id %x\n", dai_id); 287 goto POINTER_RETURN_BYTES; 288 } 289 } 290 /* Get 64 bit value from two 32 bit registers */ 291 byte_count = (high << 32) | low; 292 293POINTER_RETURN_BYTES: 294 return byte_count; 295} 296#endif 297