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 "acp_common.h" 20 #include "chip_offset_byte.h" 21 22 #define DMIC_INSTANCE 0x00 23 #define I2S_SP_INSTANCE 0x01 24 #define I2S_BT_INSTANCE 0x02 25 #define I2S_HS_INSTANCE 0x03 26 27 #define MEM_WINDOW_START 0x4080000 28 29 #define ACP_I2S_REG_START 0x1242400 30 #define ACP_I2S_REG_END 0x1242810 31 #define ACP3x_I2STDM_REG_START 0x1242400 32 #define ACP3x_I2STDM_REG_END 0x1242410 33 #define ACP3x_BT_TDM_REG_START 0x1242800 34 #define ACP3x_BT_TDM_REG_END 0x1242810 35 36 #define THRESHOLD(bit, base) ((bit) + (base)) 37 #define I2S_RX_THRESHOLD(base) THRESHOLD(7, base) 38 #define I2S_TX_THRESHOLD(base) THRESHOLD(8, base) 39 #define BT_TX_THRESHOLD(base) THRESHOLD(6, base) 40 #define BT_RX_THRESHOLD(base) THRESHOLD(5, base) 41 #define HS_TX_THRESHOLD(base) THRESHOLD(4, base) 42 #define HS_RX_THRESHOLD(base) THRESHOLD(3, base) 43 44 #define ACP_SRAM_SP_PB_PTE_OFFSET 0x0 45 #define ACP_SRAM_SP_CP_PTE_OFFSET 0x100 46 #define ACP_SRAM_BT_PB_PTE_OFFSET 0x200 47 #define ACP_SRAM_BT_CP_PTE_OFFSET 0x300 48 #define ACP_SRAM_PDM_PTE_OFFSET 0x400 49 #define ACP_SRAM_HS_PB_PTE_OFFSET 0x500 50 #define ACP_SRAM_HS_CP_PTE_OFFSET 0x600 51 #define PAGE_SIZE_4K_ENABLE 0x2 52 53 #define I2S_SP_TX_MEM_WINDOW_START 0x4000000 54 #define I2S_SP_RX_MEM_WINDOW_START 0x4020000 55 #define I2S_BT_TX_MEM_WINDOW_START 0x4040000 56 #define I2S_BT_RX_MEM_WINDOW_START 0x4060000 57 #define I2S_HS_TX_MEM_WINDOW_START 0x40A0000 58 #define I2S_HS_RX_MEM_WINDOW_START 0x40C0000 59 60 #define ACP7x_I2S_SP_TX_MEM_WINDOW_START 0x4000000 61 #define ACP7x_I2S_SP_RX_MEM_WINDOW_START 0x4200000 62 #define ACP7x_I2S_BT_TX_MEM_WINDOW_START 0x4400000 63 #define ACP7x_I2S_BT_RX_MEM_WINDOW_START 0x4600000 64 #define ACP7x_I2S_HS_TX_MEM_WINDOW_START 0x4800000 65 #define ACP7x_I2S_HS_RX_MEM_WINDOW_START 0x4A00000 66 #define ACP7x_DMIC_MEM_WINDOW_START 0x4C00000 67 68 #define SP_PB_FIFO_ADDR_OFFSET 0x500 69 #define SP_CAPT_FIFO_ADDR_OFFSET 0x700 70 #define BT_PB_FIFO_ADDR_OFFSET 0x900 71 #define BT_CAPT_FIFO_ADDR_OFFSET 0xB00 72 #define HS_PB_FIFO_ADDR_OFFSET 0xD00 73 #define HS_CAPT_FIFO_ADDR_OFFSET 0xF00 74 #define PLAYBACK_MIN_NUM_PERIODS 2 75 #define PLAYBACK_MAX_NUM_PERIODS 8 76 #define PLAYBACK_MAX_PERIOD_SIZE 8192 77 #define PLAYBACK_MIN_PERIOD_SIZE 1024 78 #define CAPTURE_MIN_NUM_PERIODS 2 79 #define CAPTURE_MAX_NUM_PERIODS 8 80 #define CAPTURE_MAX_PERIOD_SIZE 8192 81 #define CAPTURE_MIN_PERIOD_SIZE 1024 82 83 #define MAX_BUFFER 65536 84 #define MIN_BUFFER MAX_BUFFER 85 #define FIFO_SIZE 0x100 86 #define DMA_SIZE 0x40 87 #define FRM_LEN 0x100 88 89 #define ACP3x_ITER_IRER_SAMP_LEN_MASK 0x38 90 91 #define ACP_MAX_STREAM 8 92 93 #define TDM_ENABLE 1 94 #define TDM_DISABLE 0 95 96 #define SLOT_WIDTH_8 0x8 97 #define SLOT_WIDTH_16 0x10 98 #define SLOT_WIDTH_24 0x18 99 #define SLOT_WIDTH_32 0x20 100 101 #define ACP6X_PGFSM_CONTROL 0x1024 102 #define ACP6X_PGFSM_STATUS 0x1028 103 104 #define ACP63_PGFSM_CONTROL ACP6X_PGFSM_CONTROL 105 #define ACP63_PGFSM_STATUS ACP6X_PGFSM_STATUS 106 107 #define ACP70_PGFSM_CONTROL ACP6X_PGFSM_CONTROL 108 #define ACP70_PGFSM_STATUS ACP6X_PGFSM_STATUS 109 110 #define ACP_ZSC_DSP_CTRL 0x0001014 111 #define ACP_ZSC_STS 0x0001018 112 #define ACP_SOFT_RST_DONE_MASK 0x00010001 113 114 #define ACP_PGFSM_CNTL_POWER_ON_MASK 0xffffffff 115 #define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00 116 #define ACP_PGFSM_STATUS_MASK 0x03 117 #define ACP_POWERED_ON 0x00 118 #define ACP_POWER_ON_IN_PROGRESS 0x01 119 #define ACP_POWERED_OFF 0x02 120 #define ACP_POWER_OFF_IN_PROGRESS 0x03 121 122 #define ACP_ERROR_MASK 0x20000000 123 #define ACP_EXT_INTR_STAT_CLEAR_MASK 0xffffffff 124 125 #define ACP_TIMEOUT 500 126 #define DELAY_US 5 127 #define ACP_SUSPEND_DELAY_MS 2000 128 129 #define PDM_DMA_STAT 0x10 130 #define PDM_DMA_INTR_MASK 0x10000 131 #define PDM_DEC_64 0x2 132 #define PDM_CLK_FREQ_MASK 0x07 133 #define PDM_MISC_CTRL_MASK 0x10 134 #define PDM_ENABLE 0x01 135 #define PDM_DISABLE 0x00 136 #define DMA_EN_MASK 0x02 137 #define DELAY_US 5 138 #define PDM_TIMEOUT 1000 139 #define ACP_REGION2_OFFSET 0x02000000 140 141 struct acp_chip_info { 142 char *name; /* Platform name */ 143 struct resource *res; 144 struct device *dev; 145 struct snd_soc_dai_driver *dai_driver; 146 147 unsigned int acp_rev; /* ACP Revision id */ 148 void __iomem *base; /* ACP memory PCI base */ 149 struct snd_acp_hw_ops *acp_hw_ops; 150 int (*acp_hw_ops_init)(struct acp_chip_info *chip); 151 struct platform_device *chip_pdev; 152 struct acp_resource *rsrc; /* Platform specific resources*/ 153 struct list_head stream_list; 154 spinlock_t acp_lock; /* Used to protect stream_list */ 155 struct platform_device *dmic_codec_dev; 156 struct platform_device *acp_plat_dev; 157 struct platform_device *mach_dev; 158 struct snd_soc_acpi_mach *machines; 159 int num_dai; 160 u32 addr; 161 u32 bclk_div; 162 u32 lrclk_div; 163 u32 ch_mask; 164 u32 tdm_tx_fmt[3]; 165 u32 tdm_rx_fmt[3]; 166 u32 xfer_tx_resolution[3]; 167 u32 xfer_rx_resolution[3]; 168 unsigned int flag; /* Distinguish b/w Legacy or Only PDM */ 169 bool is_pdm_dev; /* flag set to true when ACP PDM controller exists */ 170 bool is_pdm_config; /* flag set to true when PDM configuration is selected from BIOS */ 171 bool is_i2s_config; /* flag set to true when I2S configuration is selected from BIOS */ 172 bool tdm_mode; 173 }; 174 175 struct acp_stream { 176 struct list_head list; 177 struct snd_pcm_substream *substream; 178 int irq_bit; 179 int dai_id; 180 int id; 181 int dir; 182 u64 bytescount; 183 u32 reg_offset; 184 u32 pte_offset; 185 u32 fifo_offset; 186 }; 187 188 struct acp_resource { 189 int offset; 190 int no_of_ctrls; 191 int irqp_used; 192 bool soc_mclk; 193 u32 irq_reg_offset; 194 u64 scratch_reg_offset; 195 u64 sram_pte_offset; 196 }; 197 198 /** 199 * struct snd_acp_hw_ops - ACP PCI driver platform specific ops 200 * @acp_init: ACP initialization 201 * @acp_deinit: ACP de-initialization 202 * @irq: ACP irq handler 203 * @en_interrupts: ACP enable interrupts 204 * @dis_interrupts: ACP disable interrupts 205 */ 206 struct snd_acp_hw_ops { 207 /* ACP hardware initilizations */ 208 int (*acp_init)(struct acp_chip_info *chip); 209 int (*acp_deinit)(struct acp_chip_info *chip); 210 211 /* ACP Interrupts*/ 212 irqreturn_t (*irq)(int irq, void *data); 213 int (*en_interrupts)(struct acp_chip_info *chip); 214 int (*dis_interrupts)(struct acp_chip_info *chip); 215 }; 216 217 enum acp_config { 218 ACP_CONFIG_0 = 0, 219 ACP_CONFIG_1, 220 ACP_CONFIG_2, 221 ACP_CONFIG_3, 222 ACP_CONFIG_4, 223 ACP_CONFIG_5, 224 ACP_CONFIG_6, 225 ACP_CONFIG_7, 226 ACP_CONFIG_8, 227 ACP_CONFIG_9, 228 ACP_CONFIG_10, 229 ACP_CONFIG_11, 230 ACP_CONFIG_12, 231 ACP_CONFIG_13, 232 ACP_CONFIG_14, 233 ACP_CONFIG_15, 234 ACP_CONFIG_16, 235 ACP_CONFIG_17, 236 ACP_CONFIG_18, 237 ACP_CONFIG_19, 238 ACP_CONFIG_20, 239 }; 240 241 extern struct acp_resource rn_rsrc; 242 extern struct acp_resource rmb_rsrc; 243 extern struct acp_resource acp63_rsrc; 244 extern struct acp_resource acp70_rsrc; 245 246 extern struct snd_soc_acpi_mach snd_soc_acpi_amd_acp_machines; 247 extern struct snd_soc_acpi_mach snd_soc_acpi_amd_rmb_acp_machines; 248 extern struct snd_soc_acpi_mach snd_soc_acpi_amd_acp63_acp_machines; 249 extern struct snd_soc_acpi_mach snd_soc_acpi_amd_acp70_acp_machines; 250 251 extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops; 252 extern const struct snd_soc_dai_ops acp_dmic_dai_ops; 253 254 int acp_platform_register(struct device *dev); 255 int acp_platform_unregister(struct device *dev); 256 257 int acp_machine_select(struct acp_chip_info *chip); 258 259 int acp_init(struct acp_chip_info *chip); 260 int acp_deinit(struct acp_chip_info *chip); 261 int acp_enable_interrupts(struct acp_chip_info *chip); 262 int acp_disable_interrupts(struct acp_chip_info *chip); 263 irqreturn_t acp_irq_handler(int irq, void *data); 264 265 extern struct snd_acp_hw_ops acp31_common_hw_ops; 266 extern struct snd_acp_hw_ops acp6x_common_hw_ops; 267 extern struct snd_acp_hw_ops acp63_common_hw_ops; 268 extern struct snd_acp_hw_ops acp70_common_hw_ops; 269 extern int acp31_hw_ops_init(struct acp_chip_info *chip); 270 extern int acp6x_hw_ops_init(struct acp_chip_info *chip); 271 extern int acp63_hw_ops_init(struct acp_chip_info *chip); 272 extern int acp70_hw_ops_init(struct acp_chip_info *chip); 273 /* Machine configuration */ 274 int snd_amd_acp_find_config(struct pci_dev *pci); 275 276 void config_pte_for_stream(struct acp_chip_info *chip, struct acp_stream *stream); 277 void config_acp_dma(struct acp_chip_info *chip, struct acp_stream *stream, int size); 278 void restore_acp_pdm_params(struct snd_pcm_substream *substream, 279 struct acp_chip_info *chip); 280 281 int restore_acp_i2s_params(struct snd_pcm_substream *substream, 282 struct acp_chip_info *chip, struct acp_stream *stream); 283 284 void check_acp_config(struct pci_dev *pci, struct acp_chip_info *chip); 285 286 static inline int acp_hw_init(struct acp_chip_info *chip) 287 { 288 if (chip && chip->acp_hw_ops && chip->acp_hw_ops->acp_init) 289 return chip->acp_hw_ops->acp_init(chip); 290 return -EOPNOTSUPP; 291 } 292 293 static inline int acp_hw_deinit(struct acp_chip_info *chip) 294 { 295 if (chip && chip->acp_hw_ops && chip->acp_hw_ops->acp_deinit) 296 return chip->acp_hw_ops->acp_deinit(chip); 297 return -EOPNOTSUPP; 298 } 299 300 static inline int acp_hw_en_interrupts(struct acp_chip_info *chip) 301 { 302 if (chip && chip->acp_hw_ops && chip->acp_hw_ops->en_interrupts) 303 return chip->acp_hw_ops->en_interrupts(chip); 304 return -EOPNOTSUPP; 305 } 306 307 static inline int acp_hw_dis_interrupts(struct acp_chip_info *chip) 308 { 309 if (chip && chip->acp_hw_ops && chip->acp_hw_ops->dis_interrupts) 310 chip->acp_hw_ops->dis_interrupts(chip); 311 return -EOPNOTSUPP; 312 } 313 314 static inline u64 acp_get_byte_count(struct acp_chip_info *chip, int dai_id, int direction) 315 { 316 u64 byte_count = 0, low = 0, high = 0; 317 318 if (direction == SNDRV_PCM_STREAM_PLAYBACK) { 319 switch (dai_id) { 320 case I2S_BT_INSTANCE: 321 high = readl(chip->base + ACP_BT_TX_LINEARPOSITIONCNTR_HIGH(chip)); 322 low = readl(chip->base + ACP_BT_TX_LINEARPOSITIONCNTR_LOW(chip)); 323 break; 324 case I2S_SP_INSTANCE: 325 high = readl(chip->base + ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH(chip)); 326 low = readl(chip->base + ACP_I2S_TX_LINEARPOSITIONCNTR_LOW(chip)); 327 break; 328 case I2S_HS_INSTANCE: 329 high = readl(chip->base + ACP_HS_TX_LINEARPOSITIONCNTR_HIGH); 330 low = readl(chip->base + ACP_HS_TX_LINEARPOSITIONCNTR_LOW); 331 break; 332 default: 333 dev_err(chip->dev, "Invalid dai id %x\n", dai_id); 334 goto POINTER_RETURN_BYTES; 335 } 336 } else { 337 switch (dai_id) { 338 case I2S_BT_INSTANCE: 339 high = readl(chip->base + ACP_BT_RX_LINEARPOSITIONCNTR_HIGH(chip)); 340 low = readl(chip->base + ACP_BT_RX_LINEARPOSITIONCNTR_LOW(chip)); 341 break; 342 case I2S_SP_INSTANCE: 343 high = readl(chip->base + ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH(chip)); 344 low = readl(chip->base + ACP_I2S_RX_LINEARPOSITIONCNTR_LOW(chip)); 345 break; 346 case I2S_HS_INSTANCE: 347 high = readl(chip->base + ACP_HS_RX_LINEARPOSITIONCNTR_HIGH); 348 low = readl(chip->base + ACP_HS_RX_LINEARPOSITIONCNTR_LOW); 349 break; 350 case DMIC_INSTANCE: 351 high = readl(chip->base + ACP_WOV_RX_LINEARPOSITIONCNTR_HIGH); 352 low = readl(chip->base + ACP_WOV_RX_LINEARPOSITIONCNTR_LOW); 353 break; 354 default: 355 dev_err(chip->dev, "Invalid dai id %x\n", dai_id); 356 goto POINTER_RETURN_BYTES; 357 } 358 } 359 /* Get 64 bit value from two 32 bit registers */ 360 byte_count = (high << 32) | low; 361 362 POINTER_RETURN_BYTES: 363 return byte_count; 364 } 365 #endif 366