1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * sst.h - Intel SST Driver for audio engine 4 * 5 * Copyright (C) 2008-14 Intel Corporation 6 * Authors: Vinod Koul <vinod.koul@intel.com> 7 * Harsha Priya <priya.harsha@intel.com> 8 * Dharageswari R <dharageswari.r@intel.com> 9 * KP Jeeja <jeeja.kp@intel.com> 10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 11 * 12 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 13 * 14 * Common private declarations for SST 15 */ 16 #ifndef __SST_H__ 17 #define __SST_H__ 18 19 #include <linux/firmware.h> 20 21 /* driver names */ 22 #define SST_DRV_NAME "intel_sst_driver" 23 #define SST_MRFLD_PCI_ID 0x119A 24 #define SST_BYT_ACPI_ID 0x80860F28 25 #define SST_CHV_ACPI_ID 0x808622A8 26 27 #define SST_SUSPEND_DELAY 2000 28 #define FW_CONTEXT_MEM (64*1024) 29 #define SST_ICCM_BOUNDARY 4 30 #define SST_CONFIG_SSP_SIGN 0x7ffe8001 31 32 #define MRFLD_FW_VIRTUAL_BASE 0xC0000000 33 #define MRFLD_FW_DDR_BASE_OFFSET 0x0 34 #define MRFLD_FW_FEATURE_BASE_OFFSET 0x4 35 #define MRFLD_FW_BSS_RESET_BIT 0 36 37 /* SST Shim register map */ 38 #define SST_CSR 0x00 39 #define SST_ISRX 0x18 40 #define SST_IMRX 0x28 41 #define SST_IPCX 0x38 /* IPC IA -> SST */ 42 #define SST_IPCD 0x40 /* IPC SST -> IA */ 43 44 extern const struct dev_pm_ops intel_sst_pm; 45 enum sst_states { 46 SST_FW_LOADING = 1, 47 SST_FW_RUNNING, 48 SST_RESET, 49 SST_SHUTDOWN, 50 }; 51 52 enum sst_algo_ops { 53 SST_SET_ALGO = 0, 54 SST_GET_ALGO = 1, 55 }; 56 57 #define SST_BLOCK_TIMEOUT 1000 58 59 #define FW_SIGNATURE_SIZE 4 60 #define FW_NAME_SIZE 32 61 62 /* stream states */ 63 enum sst_stream_states { 64 STREAM_UN_INIT = 0, /* Freed/Not used stream */ 65 STREAM_RUNNING = 1, /* Running */ 66 STREAM_PAUSED = 2, /* Paused stream */ 67 STREAM_INIT = 3, /* stream init, waiting for data */ 68 }; 69 70 enum sst_ram_type { 71 SST_IRAM = 1, 72 SST_DRAM = 2, 73 SST_DDR = 5, 74 SST_CUSTOM_INFO = 7, /* consists of FW binary information */ 75 }; 76 77 /* SST shim registers to structure mapping */ 78 union interrupt_reg { 79 struct { 80 u64 done_interrupt:1; 81 u64 busy_interrupt:1; 82 u64 rsvd:62; 83 } part; 84 u64 full; 85 }; 86 87 union sst_pisr_reg { 88 struct { 89 u32 pssp0:1; 90 u32 pssp1:1; 91 u32 rsvd0:3; 92 u32 dmac:1; 93 u32 rsvd1:26; 94 } part; 95 u32 full; 96 }; 97 98 union sst_pimr_reg { 99 struct { 100 u32 ssp0:1; 101 u32 ssp1:1; 102 u32 rsvd0:3; 103 u32 dmac:1; 104 u32 rsvd1:10; 105 u32 ssp0_sc:1; 106 u32 ssp1_sc:1; 107 u32 rsvd2:3; 108 u32 dmac_sc:1; 109 u32 rsvd3:10; 110 } part; 111 u32 full; 112 }; 113 114 union config_status_reg_mrfld { 115 struct { 116 u64 lpe_reset:1; 117 u64 lpe_reset_vector:1; 118 u64 runstall:1; 119 u64 pwaitmode:1; 120 u64 clk_sel:3; 121 u64 rsvd2:1; 122 u64 sst_clk:3; 123 u64 xt_snoop:1; 124 u64 rsvd3:4; 125 u64 clk_sel1:6; 126 u64 clk_enable:3; 127 u64 rsvd4:6; 128 u64 slim0baseclk:1; 129 u64 rsvd:32; 130 } part; 131 u64 full; 132 }; 133 134 union interrupt_reg_mrfld { 135 struct { 136 u64 done_interrupt:1; 137 u64 busy_interrupt:1; 138 u64 rsvd:62; 139 } part; 140 u64 full; 141 }; 142 143 union sst_imr_reg_mrfld { 144 struct { 145 u64 done_interrupt:1; 146 u64 busy_interrupt:1; 147 u64 rsvd:62; 148 } part; 149 u64 full; 150 }; 151 152 /** 153 * struct sst_block - This structure is used to block a user/fw data call to another 154 * fw/user call 155 * 156 * @condition: condition for blocking check 157 * @ret_code: ret code when block is released 158 * @data: data ptr 159 * @size: size of data 160 * @on: block condition 161 * @msg_id: msg_id = msgid in mfld/ctp, mrfld = NULL 162 * @drv_id: str_id in mfld/ctp, = drv_id in mrfld 163 * @node: list head node 164 */ 165 struct sst_block { 166 bool condition; 167 int ret_code; 168 void *data; 169 u32 size; 170 bool on; 171 u32 msg_id; 172 u32 drv_id; 173 struct list_head node; 174 }; 175 176 /** 177 * struct stream_info - structure that holds the stream information 178 * 179 * @status : stream current state 180 * @prev : stream prev state 181 * @resume_status : stream current state to restore on resume 182 * @resume_prev : stream prev state to restore on resume 183 * @lock : stream mutex for protecting state 184 * @alloc_param : parameters used for stream (re-)allocation 185 * @pcm_substream : PCM substream 186 * @period_elapsed : PCM period elapsed callback 187 * @sfreq : stream sampling freq 188 * @cumm_bytes : cummulative bytes decoded 189 */ 190 struct stream_info { 191 unsigned int status; 192 unsigned int prev; 193 unsigned int resume_status; 194 unsigned int resume_prev; 195 struct mutex lock; 196 struct snd_sst_alloc_mrfld alloc_param; 197 198 void *pcm_substream; 199 void (*period_elapsed)(void *pcm_substream); 200 201 unsigned int sfreq; 202 u32 cumm_bytes; 203 204 void *compr_cb_param; 205 void (*compr_cb)(void *compr_cb_param); 206 207 void *drain_cb_param; 208 void (*drain_notify)(void *drain_cb_param); 209 210 unsigned int num_ch; 211 unsigned int pipe_id; 212 unsigned int task_id; 213 }; 214 215 #define SST_FW_SIGN "$SST" 216 #define SST_FW_LIB_SIGN "$LIB" 217 218 /** 219 * struct sst_fw_header - FW file headers 220 * 221 * @signature : FW signature 222 * @file_size: size of fw image 223 * @modules : # of modules 224 * @file_format : version of header format 225 * @reserved : reserved fields 226 */ 227 struct sst_fw_header { 228 unsigned char signature[FW_SIGNATURE_SIZE]; 229 u32 file_size; 230 u32 modules; 231 u32 file_format; 232 u32 reserved[4]; 233 }; 234 235 /** 236 * struct fw_module_header - module header in FW 237 * 238 * @signature: module signature 239 * @mod_size: size of module 240 * @blocks: block count 241 * @type: block type 242 * @entry_point: module netry point 243 */ 244 struct fw_module_header { 245 unsigned char signature[FW_SIGNATURE_SIZE]; 246 u32 mod_size; 247 u32 blocks; 248 u32 type; 249 u32 entry_point; 250 }; 251 252 /** 253 * struct fw_block_info - block header for FW 254 * 255 * @type: block ram type I/D 256 * @size: size of block 257 * @ram_offset: offset in ram 258 */ 259 struct fw_block_info { 260 enum sst_ram_type type; 261 u32 size; 262 u32 ram_offset; 263 u32 rsvd; 264 }; 265 266 struct sst_runtime_param { 267 struct snd_sst_runtime_params param; 268 }; 269 270 struct sst_sg_list { 271 struct scatterlist *src; 272 struct scatterlist *dst; 273 int list_len; 274 unsigned int sg_idx; 275 }; 276 277 struct sst_memcpy_list { 278 struct list_head memcpylist; 279 void *dstn; 280 const void *src; 281 u32 size; 282 bool is_io; 283 }; 284 285 /*Firmware Module Information*/ 286 enum sst_lib_dwnld_status { 287 SST_LIB_NOT_FOUND = 0, 288 SST_LIB_FOUND, 289 SST_LIB_DOWNLOADED, 290 }; 291 292 struct sst_module_info { 293 const char *name; /*Library name*/ 294 u32 id; /*Module ID*/ 295 u32 entry_pt; /*Module entry point*/ 296 u8 status; /*module status*/ 297 u8 rsvd1; 298 u16 rsvd2; 299 }; 300 301 /* 302 * Structure for managing the Library Region(1.5MB) 303 * in DDR in Merrifield 304 */ 305 struct sst_mem_mgr { 306 phys_addr_t current_base; 307 int avail; 308 unsigned int count; 309 }; 310 311 struct sst_ipc_reg { 312 int ipcx; 313 int ipcd; 314 }; 315 316 struct sst_fw_save { 317 void *iram; /* allocated via kvmalloc() */ 318 void *dram; /* allocated via kvmalloc() */ 319 void *sram; /* allocated via kvmalloc() */ 320 void *ddr; /* allocated via kvmalloc() */ 321 }; 322 323 /** 324 * struct intel_sst_drv - driver ops 325 * 326 * @sst_state : current sst device state 327 * @dev_id : device identifier, pci_id for pci devices and acpi_id for acpi 328 * devices 329 * @shim : SST shim pointer 330 * @mailbox : SST mailbox pointer 331 * @iram : SST IRAM pointer 332 * @dram : SST DRAM pointer 333 * @pdata : SST info passed as a part of pci platform data 334 * @shim_phy_add : SST shim phy addr 335 * @ipc_dispatch_list : ipc messages dispatched 336 * @rx_list : to copy the process_reply/process_msg from DSP 337 * @ipc_post_msg_wq : wq to post IPC messages context 338 * @mad_ops : MAD driver operations registered 339 * @mad_wq : MAD driver wq 340 * @post_msg_wq : wq to post IPC messages 341 * @streams : sst stream contexts 342 * @list_lock : sst driver list lock (deprecated) 343 * @ipc_spin_lock : spin lock to handle audio shim access and ipc queue 344 * @block_lock : spin lock to add block to block_list and assign pvt_id 345 * @rx_msg_lock : spin lock to handle the rx messages from the DSP 346 * @scard_ops : sst card ops 347 * @pci : sst pci device struture 348 * @dev : pointer to current device struct 349 * @sst_lock : sst device lock 350 * @pvt_id : sst private id 351 * @stream_cnt : total sst active stream count 352 * @pb_streams : total active pb streams 353 * @cp_streams : total active cp streams 354 * @audio_start : audio status 355 * @qos : PM Qos struct 356 * firmware_name : Firmware / Library name 357 */ 358 struct intel_sst_drv { 359 int sst_state; 360 int irq_num; 361 unsigned int dev_id; 362 void __iomem *ddr; 363 void __iomem *shim; 364 void __iomem *mailbox; 365 void __iomem *iram; 366 void __iomem *dram; 367 unsigned int mailbox_add; 368 unsigned int iram_base; 369 unsigned int dram_base; 370 unsigned int shim_phy_add; 371 unsigned int iram_end; 372 unsigned int dram_end; 373 unsigned int ddr_end; 374 unsigned int ddr_base; 375 unsigned int mailbox_recv_offset; 376 struct list_head block_list; 377 struct list_head ipc_dispatch_list; 378 struct sst_platform_info *pdata; 379 struct list_head rx_list; 380 struct work_struct ipc_post_msg_wq; 381 wait_queue_head_t wait_queue; 382 struct workqueue_struct *post_msg_wq; 383 unsigned int tstamp; 384 /* str_id 0 is not used */ 385 struct stream_info streams[MAX_NUM_STREAMS+1]; 386 spinlock_t ipc_spin_lock; 387 spinlock_t block_lock; 388 spinlock_t rx_msg_lock; 389 struct pci_dev *pci; 390 struct device *dev; 391 volatile long unsigned pvt_id; 392 struct mutex sst_lock; 393 unsigned int stream_cnt; 394 unsigned int csr_value; 395 void *fw_in_mem; 396 struct sst_sg_list fw_sg_list, library_list; 397 struct intel_sst_ops *ops; 398 struct sst_info info; 399 struct pm_qos_request *qos; 400 unsigned int use_dma; 401 unsigned int use_lli; 402 atomic_t fw_clear_context; 403 bool lib_dwnld_reqd; 404 struct list_head memcpy_list; 405 struct sst_ipc_reg ipc_reg; 406 struct sst_mem_mgr lib_mem_mgr; 407 /* 408 * Holder for firmware name. Due to async call it needs to be 409 * persistent till worker thread gets called 410 */ 411 char firmware_name[FW_NAME_SIZE]; 412 413 struct snd_sst_fw_version fw_version; 414 struct sst_fw_save *fw_save; 415 }; 416 417 /* misc definitions */ 418 #define FW_DWNL_ID 0x01 419 420 struct intel_sst_ops { 421 irqreturn_t (*interrupt)(int, void *); 422 irqreturn_t (*irq_thread)(int, void *); 423 void (*clear_interrupt)(struct intel_sst_drv *ctx); 424 int (*start)(struct intel_sst_drv *ctx); 425 int (*reset)(struct intel_sst_drv *ctx); 426 void (*process_reply)(struct intel_sst_drv *ctx, struct ipc_post *msg); 427 int (*post_message)(struct intel_sst_drv *ctx, 428 struct ipc_post *msg, bool sync); 429 void (*process_message)(struct ipc_post *msg); 430 void (*set_bypass)(bool set); 431 int (*save_dsp_context)(struct intel_sst_drv *sst); 432 void (*restore_dsp_context)(void); 433 int (*alloc_stream)(struct intel_sst_drv *ctx, void *params); 434 void (*post_download)(struct intel_sst_drv *sst); 435 }; 436 437 int sst_realloc_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); 438 int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); 439 int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); 440 int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); 441 int sst_free_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); 442 int sst_start_stream(struct intel_sst_drv *sst_drv_ctx, int str_id); 443 int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, 444 struct snd_sst_bytes_v2 *bytes); 445 int sst_set_stream_param(int str_id, struct snd_sst_params *str_param); 446 int sst_set_metadata(int str_id, char *params); 447 int sst_get_stream(struct intel_sst_drv *ctx, 448 struct snd_sst_params *str_param); 449 int sst_get_stream_allocated(struct intel_sst_drv *ctx, 450 struct snd_sst_params *str_param, 451 struct snd_sst_lib_download **lib_dnld); 452 int sst_drain_stream(struct intel_sst_drv *sst_drv_ctx, 453 int str_id, bool partial_drain); 454 int sst_post_message_mrfld(struct intel_sst_drv *sst_drv_ctx, 455 struct ipc_post *ipc_msg, bool sync); 456 void sst_process_reply_mrfld(struct intel_sst_drv *sst_drv_ctx, struct ipc_post *msg); 457 int sst_start_mrfld(struct intel_sst_drv *sst_drv_ctx); 458 int intel_sst_reset_dsp_mrfld(struct intel_sst_drv *sst_drv_ctx); 459 void intel_sst_clear_intr_mrfld(struct intel_sst_drv *sst_drv_ctx); 460 461 int sst_load_fw(struct intel_sst_drv *sst_drv_ctx); 462 int sst_load_library(struct snd_sst_lib_download *lib, u8 ops); 463 void sst_post_download_mrfld(struct intel_sst_drv *ctx); 464 int sst_get_block_stream(struct intel_sst_drv *sst_drv_ctx); 465 void sst_memcpy_free_resources(struct intel_sst_drv *sst_drv_ctx); 466 467 int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx, 468 struct sst_block *block); 469 int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx, 470 struct sst_block *block); 471 int sst_create_ipc_msg(struct ipc_post **arg, bool large); 472 int free_stream_context(struct intel_sst_drv *ctx, unsigned int str_id); 473 void sst_clean_stream(struct stream_info *stream); 474 int intel_sst_register_compress(struct intel_sst_drv *sst); 475 int intel_sst_remove_compress(struct intel_sst_drv *sst); 476 void sst_cdev_fragment_elapsed(struct intel_sst_drv *ctx, int str_id); 477 int sst_send_sync_msg(int ipc, int str_id); 478 int sst_get_num_channel(struct snd_sst_params *str_param); 479 int sst_get_sfreq(struct snd_sst_params *str_param); 480 int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params); 481 void sst_restore_fw_context(void); 482 struct sst_block *sst_create_block(struct intel_sst_drv *ctx, 483 u32 msg_id, u32 drv_id); 484 int sst_create_block_and_ipc_msg(struct ipc_post **arg, bool large, 485 struct intel_sst_drv *sst_drv_ctx, struct sst_block **block, 486 u32 msg_id, u32 drv_id); 487 int sst_free_block(struct intel_sst_drv *ctx, struct sst_block *freed); 488 int sst_wake_up_block(struct intel_sst_drv *ctx, int result, 489 u32 drv_id, u32 ipc, void *data, u32 size); 490 int sst_request_firmware_async(struct intel_sst_drv *ctx); 491 int sst_driver_ops(struct intel_sst_drv *sst); 492 struct sst_platform_info *sst_get_acpi_driver_data(const char *hid); 493 void sst_firmware_load_cb(const struct firmware *fw, void *context); 494 int sst_prepare_and_post_msg(struct intel_sst_drv *sst, 495 int task_id, int ipc_msg, int cmd_id, int pipe_id, 496 size_t mbox_data_len, const void *mbox_data, void **data, 497 bool large, bool fill_dsp, bool sync, bool response); 498 499 void sst_process_pending_msg(struct work_struct *work); 500 int sst_assign_pvt_id(struct intel_sst_drv *drv); 501 int sst_validate_strid(struct intel_sst_drv *sst_drv_ctx, int str_id); 502 struct stream_info *get_stream_info(struct intel_sst_drv *sst_drv_ctx, 503 int str_id); 504 int get_stream_id_mrfld(struct intel_sst_drv *sst_drv_ctx, 505 u32 pipe_id); 506 u32 relocate_imr_addr_mrfld(u32 base_addr); 507 void sst_add_to_dispatch_list_and_post(struct intel_sst_drv *sst, 508 struct ipc_post *msg); 509 int sst_pm_runtime_put(struct intel_sst_drv *sst_drv); 510 int sst_shim_write(void __iomem *addr, int offset, int value); 511 u32 sst_shim_read(void __iomem *addr, int offset); 512 u64 sst_reg_read64(void __iomem *addr, int offset); 513 int sst_shim_write64(void __iomem *addr, int offset, u64 value); 514 u64 sst_shim_read64(void __iomem *addr, int offset); 515 void sst_set_fw_state_locked( 516 struct intel_sst_drv *sst_drv_ctx, int sst_state); 517 void sst_fill_header_mrfld(union ipc_header_mrfld *header, 518 int msg, int task_id, int large, int drv_id); 519 void sst_fill_header_dsp(struct ipc_dsp_hdr *dsp, int msg, 520 int pipe_id, int len); 521 522 int sst_register(struct device *); 523 int sst_unregister(struct device *); 524 525 int sst_alloc_drv_context(struct intel_sst_drv **ctx, 526 struct device *dev, unsigned int dev_id); 527 int sst_context_init(struct intel_sst_drv *ctx); 528 void sst_context_cleanup(struct intel_sst_drv *ctx); 529 void sst_configure_runtime_pm(struct intel_sst_drv *ctx); 530 void memcpy32_toio(void __iomem *dst, const void *src, int count); 531 void memcpy32_fromio(void *dst, const void __iomem *src, int count); 532 533 #endif 534