sound/soc/intel/atom/sst/sst.h

   1 /*
   2  *  sst.h - Intel SST Driver for audio engine
   3  *
   4  *  Copyright (C) 2008-14 Intel Corporation
   5  *  Authors:    Vinod Koul <vinod.koul@intel.com>
   6  *              Harsha Priya <priya.harsha@intel.com>
   7  *              Dharageswari R <dharageswari.r@intel.com>
   8  *              KP Jeeja <jeeja.kp@intel.com>
   9  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; version 2 of the License.
  14  *
  15  *  This program is distributed in the hope that it will be useful, but
  16  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  *  General Public License for more details.
  19  *
  20  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  21  *
  22  *  Common private declarations for SST
  23  */
  24 #ifndef __SST_H__
  25 #define __SST_H__
  26
  27 #include <linux/firmware.h>
  28
  29 /* driver names */
  30 #define SST_DRV_NAME "intel_sst_driver"
  31 #define SST_MRFLD_PCI_ID 0x119A
  32 #define SST_BYT_ACPI_ID 0x80860F28
  33 #define SST_CHV_ACPI_ID 0x808622A8
  34
  35 #define SST_SUSPEND_DELAY 2000
  36 #define FW_CONTEXT_MEM (64*1024)
  37 #define SST_ICCM_BOUNDARY 4
  38 #define SST_CONFIG_SSP_SIGN 0x7ffe8001
  39
  40 #define MRFLD_FW_VIRTUAL_BASE 0xC0000000
  41 #define MRFLD_FW_DDR_BASE_OFFSET 0x0
  42 #define MRFLD_FW_FEATURE_BASE_OFFSET 0x4
  43 #define MRFLD_FW_BSS_RESET_BIT 0
  44
  45 extern const struct dev_pm_ops intel_sst_pm;
  46 enum sst_states {
  47         SST_FW_LOADING = 1,
  48         SST_FW_RUNNING,
  49         SST_RESET,
  50         SST_SHUTDOWN,
  51 };
  52
  53 enum sst_algo_ops {
  54         SST_SET_ALGO = 0,
  55         SST_GET_ALGO = 1,
  56 };
  57
  58 #define SST_BLOCK_TIMEOUT       1000
  59
  60 #define FW_SIGNATURE_SIZE       4
  61 #define FW_NAME_SIZE            32
  62
  63 /* stream states */
  64 enum sst_stream_states {
  65         STREAM_UN_INIT  = 0,    /* Freed/Not used stream */
  66         STREAM_RUNNING  = 1,    /* Running */
  67         STREAM_PAUSED   = 2,    /* Paused stream */
  68         STREAM_DECODE   = 3,    /* stream is in decoding only state */
  69         STREAM_INIT     = 4,    /* stream init, waiting for data */
  70         STREAM_RESET    = 5,    /* force reset on recovery */
  71 };
  72
  73 enum sst_ram_type {
  74         SST_IRAM        = 1,
  75         SST_DRAM        = 2,
  76         SST_DDR = 5,
  77         SST_CUSTOM_INFO = 7,    /* consists of FW binary information */
  78 };
  79
  80 /* SST shim registers to structure mapping */
  81 union interrupt_reg {
  82         struct {
  83                 u64 done_interrupt:1;
  84                 u64 busy_interrupt:1;
  85                 u64 rsvd:62;
  86         } part;
  87         u64 full;
  88 };
  89
  90 union sst_pisr_reg {
  91         struct {
  92                 u32 pssp0:1;
  93                 u32 pssp1:1;
  94                 u32 rsvd0:3;
  95                 u32 dmac:1;
  96                 u32 rsvd1:26;
  97         } part;
  98         u32 full;
  99 };
 100
 101 union sst_pimr_reg {
 102         struct {
 103                 u32 ssp0:1;
 104                 u32 ssp1:1;
 105                 u32 rsvd0:3;
 106                 u32 dmac:1;
 107                 u32 rsvd1:10;
 108                 u32 ssp0_sc:1;
 109                 u32 ssp1_sc:1;
 110                 u32 rsvd2:3;
 111                 u32 dmac_sc:1;
 112                 u32 rsvd3:10;
 113         } part;
 114         u32 full;
 115 };
 116
 117 union config_status_reg_mrfld {
 118         struct {
 119                 u64 lpe_reset:1;
 120                 u64 lpe_reset_vector:1;
 121                 u64 runstall:1;
 122                 u64 pwaitmode:1;
 123                 u64 clk_sel:3;
 124                 u64 rsvd2:1;
 125                 u64 sst_clk:3;
 126                 u64 xt_snoop:1;
 127                 u64 rsvd3:4;
 128                 u64 clk_sel1:6;
 129                 u64 clk_enable:3;
 130                 u64 rsvd4:6;
 131                 u64 slim0baseclk:1;
 132                 u64 rsvd:32;
 133         } part;
 134         u64 full;
 135 };
 136
 137 union interrupt_reg_mrfld {
 138         struct {
 139                 u64 done_interrupt:1;
 140                 u64 busy_interrupt:1;
 141                 u64 rsvd:62;
 142         } part;
 143         u64 full;
 144 };
 145
 146 union sst_imr_reg_mrfld {
 147         struct {
 148                 u64 done_interrupt:1;
 149                 u64 busy_interrupt:1;
 150                 u64 rsvd:62;
 151         } part;
 152         u64 full;
 153 };
 154
 155 /**
 156  * struct sst_block - This structure is used to block a user/fw data call to another
 157  * fw/user call
 158  *
 159  * @condition: condition for blocking check
 160  * @ret_code: ret code when block is released
 161  * @data: data ptr
 162  * @size: size of data
 163  * @on: block condition
 164  * @msg_id: msg_id = msgid in mfld/ctp, mrfld = NULL
 165  * @drv_id: str_id in mfld/ctp, = drv_id in mrfld
 166  * @node: list head node
 167  */
 168 struct sst_block {
 169         bool    condition;
 170         int     ret_code;
 171         void    *data;
 172         u32     size;
 173         bool    on;
 174         u32     msg_id;
 175         u32     drv_id;
 176         struct list_head node;
 177 };
 178
 179 /**
 180  * struct stream_info - structure that holds the stream information
 181  *
 182  * @status : stream current state
 183  * @prev : stream prev state
 184  * @ops : stream operation pb/cp/drm...
 185  * @bufs: stream buffer list
 186  * @lock : stream mutex for protecting state
 187  * @pcm_substream : PCM substream
 188  * @period_elapsed : PCM period elapsed callback
 189  * @sfreq : stream sampling freq
 190  * @str_type : stream type
 191  * @cumm_bytes : cummulative bytes decoded
 192  * @str_type : stream type
 193  * @src : stream source
 194  */
 195 struct stream_info {
 196         unsigned int            status;
 197         unsigned int            prev;
 198         unsigned int            ops;
 199         struct mutex            lock;
 200
 201         void                    *pcm_substream;
 202         void (*period_elapsed)(void *pcm_substream);
 203
 204         unsigned int            sfreq;
 205         u32                     cumm_bytes;
 206
 207         void                    *compr_cb_param;
 208         void (*compr_cb)(void *compr_cb_param);
 209
 210         void                    *drain_cb_param;
 211         void (*drain_notify)(void *drain_cb_param);
 212
 213         unsigned int            num_ch;
 214         unsigned int            pipe_id;
 215         unsigned int            str_id;
 216         unsigned int            task_id;
 217 };
 218
 219 #define SST_FW_SIGN "$SST"
 220 #define SST_FW_LIB_SIGN "$LIB"
 221
 222 /**
 223  * struct sst_fw_header - FW file headers
 224  *
 225  * @signature : FW signature
 226  * @file_size: size of fw image
 227  * @modules : # of modules
 228  * @file_format : version of header format
 229  * @reserved : reserved fields
 230  */
 231 struct sst_fw_header {
 232         unsigned char signature[FW_SIGNATURE_SIZE];
 233         u32 file_size;
 234         u32 modules;
 235         u32 file_format;
 236         u32 reserved[4];
 237 };
 238
 239 /**
 240  * struct fw_module_header - module header in FW
 241  *
 242  * @signature: module signature
 243  * @mod_size: size of module
 244  * @blocks: block count
 245  * @type: block type
 246  * @entry_point: module netry point
 247  */
 248 struct fw_module_header {
 249         unsigned char signature[FW_SIGNATURE_SIZE];
 250         u32 mod_size;
 251         u32 blocks;
 252         u32 type;
 253         u32 entry_point;
 254 };
 255
 256 /**
 257  * struct fw_block_info - block header for FW
 258  *
 259  * @type: block ram type I/D
 260  * @size: size of block
 261  * @ram_offset: offset in ram
 262  */
 263 struct fw_block_info {
 264         enum sst_ram_type       type;
 265         u32                     size;
 266         u32                     ram_offset;
 267         u32                     rsvd;
 268 };
 269
 270 struct sst_runtime_param {
 271         struct snd_sst_runtime_params param;
 272 };
 273
 274 struct sst_sg_list {
 275         struct scatterlist *src;
 276         struct scatterlist *dst;
 277         int list_len;
 278         unsigned int sg_idx;
 279 };
 280
 281 struct sst_memcpy_list {
 282         struct list_head memcpylist;
 283         void *dstn;
 284         const void *src;
 285         u32 size;
 286         bool is_io;
 287 };
 288
 289 /*Firmware Module Information*/
 290 enum sst_lib_dwnld_status {
 291         SST_LIB_NOT_FOUND = 0,
 292         SST_LIB_FOUND,
 293         SST_LIB_DOWNLOADED,
 294 };
 295
 296 struct sst_module_info {
 297         const char *name; /*Library name*/
 298         u32     id; /*Module ID*/
 299         u32     entry_pt; /*Module entry point*/
 300         u8      status; /*module status*/
 301         u8      rsvd1;
 302         u16     rsvd2;
 303 };
 304
 305 /*
 306  * Structure for managing the Library Region(1.5MB)
 307  * in DDR in Merrifield
 308  */
 309 struct sst_mem_mgr {
 310         phys_addr_t current_base;
 311         int avail;
 312         unsigned int count;
 313 };
 314
 315 struct sst_ipc_reg {
 316         int ipcx;
 317         int ipcd;
 318 };
 319
 320 struct sst_shim_regs64 {
 321         u64 csr;
 322         u64 pisr;
 323         u64 pimr;
 324         u64 isrx;
 325         u64 isrd;
 326         u64 imrx;
 327         u64 imrd;
 328         u64 ipcx;
 329         u64 ipcd;
 330         u64 isrsc;
 331         u64 isrlpesc;
 332         u64 imrsc;
 333         u64 imrlpesc;
 334         u64 ipcsc;
 335         u64 ipclpesc;
 336         u64 clkctl;
 337         u64 csr2;
 338 };
 339
 340 struct sst_fw_save {
 341         void *iram;
 342         void *dram;
 343         void *sram;
 344         void *ddr;
 345 };
 346
 347 /**
 348  * struct intel_sst_drv - driver ops
 349  *
 350  * @sst_state : current sst device state
 351  * @dev_id : device identifier, pci_id for pci devices and acpi_id for acpi
 352  *           devices
 353  * @shim : SST shim pointer
 354  * @mailbox : SST mailbox pointer
 355  * @iram : SST IRAM pointer
 356  * @dram : SST DRAM pointer
 357  * @pdata : SST info passed as a part of pci platform data
 358  * @shim_phy_add : SST shim phy addr
 359  * @shim_regs64: Struct to save shim registers
 360  * @ipc_dispatch_list : ipc messages dispatched
 361  * @rx_list : to copy the process_reply/process_msg from DSP
 362  * @ipc_post_msg_wq : wq to post IPC messages context
 363  * @mad_ops : MAD driver operations registered
 364  * @mad_wq : MAD driver wq
 365  * @post_msg_wq : wq to post IPC messages
 366  * @streams : sst stream contexts
 367  * @list_lock : sst driver list lock (deprecated)
 368  * @ipc_spin_lock : spin lock to handle audio shim access and ipc queue
 369  * @block_lock : spin lock to add block to block_list and assign pvt_id
 370  * @rx_msg_lock : spin lock to handle the rx messages from the DSP
 371  * @scard_ops : sst card ops
 372  * @pci : sst pci device struture
 373  * @dev : pointer to current device struct
 374  * @sst_lock : sst device lock
 375  * @pvt_id : sst private id
 376  * @stream_cnt : total sst active stream count
 377  * @pb_streams : total active pb streams
 378  * @cp_streams : total active cp streams
 379  * @audio_start : audio status
 380  * @qos         : PM Qos struct
 381  * firmware_name : Firmware / Library name
 382  */
 383 struct intel_sst_drv {
 384         int                     sst_state;
 385         int                     irq_num;
 386         unsigned int            dev_id;
 387         void __iomem            *ddr;
 388         void __iomem            *shim;
 389         void __iomem            *mailbox;
 390         void __iomem            *iram;
 391         void __iomem            *dram;
 392         unsigned int            mailbox_add;
 393         unsigned int            iram_base;
 394         unsigned int            dram_base;
 395         unsigned int            shim_phy_add;
 396         unsigned int            iram_end;
 397         unsigned int            dram_end;
 398         unsigned int            ddr_end;
 399         unsigned int            ddr_base;
 400         unsigned int            mailbox_recv_offset;
 401         struct sst_shim_regs64  *shim_regs64;
 402         struct list_head        block_list;
 403         struct list_head        ipc_dispatch_list;
 404         struct sst_platform_info *pdata;
 405         struct list_head        rx_list;
 406         struct work_struct      ipc_post_msg_wq;
 407         wait_queue_head_t       wait_queue;
 408         struct workqueue_struct *post_msg_wq;
 409         unsigned int            tstamp;
 410         /* str_id 0 is not used */
 411         struct stream_info      streams[MAX_NUM_STREAMS+1];
 412         spinlock_t              ipc_spin_lock;
 413         spinlock_t              block_lock;
 414         spinlock_t              rx_msg_lock;
 415         struct pci_dev          *pci;
 416         struct device           *dev;
 417         volatile long unsigned          pvt_id;
 418         struct mutex            sst_lock;
 419         unsigned int            stream_cnt;
 420         unsigned int            csr_value;
 421         void                    *fw_in_mem;
 422         struct sst_sg_list      fw_sg_list, library_list;
 423         struct intel_sst_ops    *ops;
 424         struct sst_info         info;
 425         struct pm_qos_request   *qos;
 426         unsigned int            use_dma;
 427         unsigned int            use_lli;
 428         atomic_t                fw_clear_context;
 429         bool                    lib_dwnld_reqd;
 430         struct list_head        memcpy_list;
 431         struct sst_ipc_reg      ipc_reg;
 432         struct sst_mem_mgr      lib_mem_mgr;
 433         /*
 434          * Holder for firmware name. Due to async call it needs to be
 435          * persistent till worker thread gets called
 436          */
 437         char firmware_name[FW_NAME_SIZE];
 438
 439         struct sst_fw_save      *fw_save;
 440 };
 441
 442 /* misc definitions */
 443 #define FW_DWNL_ID 0x01
 444
 445 struct intel_sst_ops {
 446         irqreturn_t (*interrupt)(int, void *);
 447         irqreturn_t (*irq_thread)(int, void *);
 448         void (*clear_interrupt)(struct intel_sst_drv *ctx);
 449         int (*start)(struct intel_sst_drv *ctx);
 450         int (*reset)(struct intel_sst_drv *ctx);
 451         void (*process_reply)(struct intel_sst_drv *ctx, struct ipc_post *msg);
 452         int (*post_message)(struct intel_sst_drv *ctx,
 453                         struct ipc_post *msg, bool sync);
 454         void (*process_message)(struct ipc_post *msg);
 455         void (*set_bypass)(bool set);
 456         int (*save_dsp_context)(struct intel_sst_drv *sst);
 457         void (*restore_dsp_context)(void);
 458         int (*alloc_stream)(struct intel_sst_drv *ctx, void *params);
 459         void (*post_download)(struct intel_sst_drv *sst);
 460 };
 461
 462 int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int id);
 463 int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int id);
 464 int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int id);
 465 int sst_free_stream(struct intel_sst_drv *sst_drv_ctx, int id);
 466 int sst_start_stream(struct intel_sst_drv *sst_drv_ctx, int str_id);
 467 int sst_send_byte_stream_mrfld(struct intel_sst_drv *ctx,
 468                         struct snd_sst_bytes_v2 *sbytes);
 469 int sst_set_stream_param(int str_id, struct snd_sst_params *str_param);
 470 int sst_set_metadata(int str_id, char *params);
 471 int sst_get_stream(struct intel_sst_drv *sst_drv_ctx,
 472                 struct snd_sst_params *str_param);
 473 int sst_get_stream_allocated(struct intel_sst_drv *ctx,
 474                 struct snd_sst_params *str_param,
 475                 struct snd_sst_lib_download **lib_dnld);
 476 int sst_drain_stream(struct intel_sst_drv *sst_drv_ctx,
 477                 int str_id, bool partial_drain);
 478 int sst_post_message_mrfld(struct intel_sst_drv *ctx,
 479                 struct ipc_post *msg, bool sync);
 480 void sst_process_reply_mrfld(struct intel_sst_drv *ctx, struct ipc_post *msg);
 481 int sst_start_mrfld(struct intel_sst_drv *ctx);
 482 int intel_sst_reset_dsp_mrfld(struct intel_sst_drv *ctx);
 483 void intel_sst_clear_intr_mrfld(struct intel_sst_drv *ctx);
 484
 485 int sst_load_fw(struct intel_sst_drv *ctx);
 486 int sst_load_library(struct snd_sst_lib_download *lib, u8 ops);
 487 void sst_post_download_mrfld(struct intel_sst_drv *ctx);
 488 int sst_get_block_stream(struct intel_sst_drv *sst_drv_ctx);
 489 void sst_memcpy_free_resources(struct intel_sst_drv *ctx);
 490
 491 int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx,
 492                                 struct sst_block *block);
 493 int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx,
 494                         struct sst_block *block);
 495 int sst_create_ipc_msg(struct ipc_post **arg, bool large);
 496 int free_stream_context(struct intel_sst_drv *ctx, unsigned int str_id);
 497 void sst_clean_stream(struct stream_info *stream);
 498 int intel_sst_register_compress(struct intel_sst_drv *sst);
 499 int intel_sst_remove_compress(struct intel_sst_drv *sst);
 500 void sst_cdev_fragment_elapsed(struct intel_sst_drv *ctx, int str_id);
 501 int sst_send_sync_msg(int ipc, int str_id);
 502 int sst_get_num_channel(struct snd_sst_params *str_param);
 503 int sst_get_sfreq(struct snd_sst_params *str_param);
 504 int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params);
 505 void sst_restore_fw_context(void);
 506 struct sst_block *sst_create_block(struct intel_sst_drv *ctx,
 507                                 u32 msg_id, u32 drv_id);
 508 int sst_create_block_and_ipc_msg(struct ipc_post **arg, bool large,
 509                 struct intel_sst_drv *sst_drv_ctx, struct sst_block **block,
 510                 u32 msg_id, u32 drv_id);
 511 int sst_free_block(struct intel_sst_drv *ctx, struct sst_block *freed);
 512 int sst_wake_up_block(struct intel_sst_drv *ctx, int result,
 513                 u32 drv_id, u32 ipc, void *data, u32 size);
 514 int sst_request_firmware_async(struct intel_sst_drv *ctx);
 515 int sst_driver_ops(struct intel_sst_drv *sst);
 516 struct sst_platform_info *sst_get_acpi_driver_data(const char *hid);
 517 void sst_firmware_load_cb(const struct firmware *fw, void *context);
 518 int sst_prepare_and_post_msg(struct intel_sst_drv *sst,
 519                 int task_id, int ipc_msg, int cmd_id, int pipe_id,
 520                 size_t mbox_data_len, const void *mbox_data, void **data,
 521                 bool large, bool fill_dsp, bool sync, bool response);
 522
 523 void sst_process_pending_msg(struct work_struct *work);
 524 int sst_assign_pvt_id(struct intel_sst_drv *sst_drv_ctx);
 525 void sst_init_stream(struct stream_info *stream,
 526                 int codec, int sst_id, int ops, u8 slot);
 527 int sst_validate_strid(struct intel_sst_drv *sst_drv_ctx, int str_id);
 528 struct stream_info *get_stream_info(struct intel_sst_drv *sst_drv_ctx,
 529                 int str_id);
 530 int get_stream_id_mrfld(struct intel_sst_drv *sst_drv_ctx,
 531                 u32 pipe_id);
 532 u32 relocate_imr_addr_mrfld(u32 base_addr);
 533 void sst_add_to_dispatch_list_and_post(struct intel_sst_drv *sst,
 534                                         struct ipc_post *msg);
 535 int sst_pm_runtime_put(struct intel_sst_drv *sst_drv);
 536 int sst_shim_write(void __iomem *addr, int offset, int value);
 537 u32 sst_shim_read(void __iomem *addr, int offset);
 538 u64 sst_reg_read64(void __iomem *addr, int offset);
 539 int sst_shim_write64(void __iomem *addr, int offset, u64 value);
 540 u64 sst_shim_read64(void __iomem *addr, int offset);
 541 void sst_set_fw_state_locked(
 542                 struct intel_sst_drv *sst_drv_ctx, int sst_state);
 543 void sst_fill_header_mrfld(union ipc_header_mrfld *header,
 544                                 int msg, int task_id, int large, int drv_id);
 545 void sst_fill_header_dsp(struct ipc_dsp_hdr *dsp, int msg,
 546                                         int pipe_id, int len);
 547
 548 int sst_register(struct device *);
 549 int sst_unregister(struct device *);
 550
 551 int sst_alloc_drv_context(struct intel_sst_drv **ctx,
 552                 struct device *dev, unsigned int dev_id);
 553 int sst_context_init(struct intel_sst_drv *ctx);
 554 void sst_context_cleanup(struct intel_sst_drv *ctx);
 555 void sst_configure_runtime_pm(struct intel_sst_drv *ctx);
 556 void memcpy32_toio(void __iomem *dst, const void *src, int count);
 557 void memcpy32_fromio(void *dst, const void __iomem *src, int count);
 558
 559 #endif