sound/soc/codecs/wm_adsp.c

   1 /*
   2  * wm_adsp.c  --  Wolfson ADSP support
   3  *
   4  * Copyright 2012 Wolfson Microelectronics plc
   5  *
   6  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/moduleparam.h>
  15 #include <linux/init.h>
  16 #include <linux/delay.h>
  17 #include <linux/firmware.h>
  18 #include <linux/list.h>
  19 #include <linux/pm.h>
  20 #include <linux/pm_runtime.h>
  21 #include <linux/regmap.h>
  22 #include <linux/regulator/consumer.h>
  23 #include <linux/slab.h>
  24 #include <linux/vmalloc.h>
  25 #include <linux/workqueue.h>
  26 #include <linux/debugfs.h>
  27 #include <sound/core.h>
  28 #include <sound/pcm.h>
  29 #include <sound/pcm_params.h>
  30 #include <sound/soc.h>
  31 #include <sound/jack.h>
  32 #include <sound/initval.h>
  33 #include <sound/tlv.h>
  34
  35 #include "wm_adsp.h"
  36
  37 #define adsp_crit(_dsp, fmt, ...) \
  38         dev_crit(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  39 #define adsp_err(_dsp, fmt, ...) \
  40         dev_err(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  41 #define adsp_warn(_dsp, fmt, ...) \
  42         dev_warn(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  43 #define adsp_info(_dsp, fmt, ...) \
  44         dev_info(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  45 #define adsp_dbg(_dsp, fmt, ...) \
  46         dev_dbg(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  47
  48 #define ADSP1_CONTROL_1                   0x00
  49 #define ADSP1_CONTROL_2                   0x02
  50 #define ADSP1_CONTROL_3                   0x03
  51 #define ADSP1_CONTROL_4                   0x04
  52 #define ADSP1_CONTROL_5                   0x06
  53 #define ADSP1_CONTROL_6                   0x07
  54 #define ADSP1_CONTROL_7                   0x08
  55 #define ADSP1_CONTROL_8                   0x09
  56 #define ADSP1_CONTROL_9                   0x0A
  57 #define ADSP1_CONTROL_10                  0x0B
  58 #define ADSP1_CONTROL_11                  0x0C
  59 #define ADSP1_CONTROL_12                  0x0D
  60 #define ADSP1_CONTROL_13                  0x0F
  61 #define ADSP1_CONTROL_14                  0x10
  62 #define ADSP1_CONTROL_15                  0x11
  63 #define ADSP1_CONTROL_16                  0x12
  64 #define ADSP1_CONTROL_17                  0x13
  65 #define ADSP1_CONTROL_18                  0x14
  66 #define ADSP1_CONTROL_19                  0x16
  67 #define ADSP1_CONTROL_20                  0x17
  68 #define ADSP1_CONTROL_21                  0x18
  69 #define ADSP1_CONTROL_22                  0x1A
  70 #define ADSP1_CONTROL_23                  0x1B
  71 #define ADSP1_CONTROL_24                  0x1C
  72 #define ADSP1_CONTROL_25                  0x1E
  73 #define ADSP1_CONTROL_26                  0x20
  74 #define ADSP1_CONTROL_27                  0x21
  75 #define ADSP1_CONTROL_28                  0x22
  76 #define ADSP1_CONTROL_29                  0x23
  77 #define ADSP1_CONTROL_30                  0x24
  78 #define ADSP1_CONTROL_31                  0x26
  79
  80 /*
  81  * ADSP1 Control 19
  82  */
  83 #define ADSP1_WDMA_BUFFER_LENGTH_MASK     0x00FF  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
  84 #define ADSP1_WDMA_BUFFER_LENGTH_SHIFT         0  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
  85 #define ADSP1_WDMA_BUFFER_LENGTH_WIDTH         8  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
  86
  87
  88 /*
  89  * ADSP1 Control 30
  90  */
  91 #define ADSP1_DBG_CLK_ENA                 0x0008  /* DSP1_DBG_CLK_ENA */
  92 #define ADSP1_DBG_CLK_ENA_MASK            0x0008  /* DSP1_DBG_CLK_ENA */
  93 #define ADSP1_DBG_CLK_ENA_SHIFT                3  /* DSP1_DBG_CLK_ENA */
  94 #define ADSP1_DBG_CLK_ENA_WIDTH                1  /* DSP1_DBG_CLK_ENA */
  95 #define ADSP1_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
  96 #define ADSP1_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
  97 #define ADSP1_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
  98 #define ADSP1_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
  99 #define ADSP1_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
 100 #define ADSP1_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
 101 #define ADSP1_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
 102 #define ADSP1_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
 103 #define ADSP1_START                       0x0001  /* DSP1_START */
 104 #define ADSP1_START_MASK                  0x0001  /* DSP1_START */
 105 #define ADSP1_START_SHIFT                      0  /* DSP1_START */
 106 #define ADSP1_START_WIDTH                      1  /* DSP1_START */
 107
 108 /*
 109  * ADSP1 Control 31
 110  */
 111 #define ADSP1_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
 112 #define ADSP1_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
 113 #define ADSP1_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
 114
 115 #define ADSP2_CONTROL        0x0
 116 #define ADSP2_CLOCKING       0x1
 117 #define ADSP2_STATUS1        0x4
 118 #define ADSP2_WDMA_CONFIG_1 0x30
 119 #define ADSP2_WDMA_CONFIG_2 0x31
 120 #define ADSP2_RDMA_CONFIG_1 0x34
 121
 122 #define ADSP2_SCRATCH0        0x40
 123 #define ADSP2_SCRATCH1        0x41
 124 #define ADSP2_SCRATCH2        0x42
 125 #define ADSP2_SCRATCH3        0x43
 126
 127 /*
 128  * ADSP2 Control
 129  */
 130
 131 #define ADSP2_MEM_ENA                     0x0010  /* DSP1_MEM_ENA */
 132 #define ADSP2_MEM_ENA_MASK                0x0010  /* DSP1_MEM_ENA */
 133 #define ADSP2_MEM_ENA_SHIFT                    4  /* DSP1_MEM_ENA */
 134 #define ADSP2_MEM_ENA_WIDTH                    1  /* DSP1_MEM_ENA */
 135 #define ADSP2_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
 136 #define ADSP2_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
 137 #define ADSP2_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
 138 #define ADSP2_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
 139 #define ADSP2_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
 140 #define ADSP2_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
 141 #define ADSP2_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
 142 #define ADSP2_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
 143 #define ADSP2_START                       0x0001  /* DSP1_START */
 144 #define ADSP2_START_MASK                  0x0001  /* DSP1_START */
 145 #define ADSP2_START_SHIFT                      0  /* DSP1_START */
 146 #define ADSP2_START_WIDTH                      1  /* DSP1_START */
 147
 148 /*
 149  * ADSP2 clocking
 150  */
 151 #define ADSP2_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
 152 #define ADSP2_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
 153 #define ADSP2_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
 154
 155 /*
 156  * ADSP2 Status 1
 157  */
 158 #define ADSP2_RAM_RDY                     0x0001
 159 #define ADSP2_RAM_RDY_MASK                0x0001
 160 #define ADSP2_RAM_RDY_SHIFT                    0
 161 #define ADSP2_RAM_RDY_WIDTH                    1
 162
 163 struct wm_adsp_buf {
 164         struct list_head list;
 165         void *buf;
 166 };
 167
 168 static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
 169                                              struct list_head *list)
 170 {
 171         struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
 172
 173         if (buf == NULL)
 174                 return NULL;
 175
 176         buf->buf = vmalloc(len);
 177         if (!buf->buf) {
 178                 vfree(buf);
 179                 return NULL;
 180         }
 181         memcpy(buf->buf, src, len);
 182
 183         if (list)
 184                 list_add_tail(&buf->list, list);
 185
 186         return buf;
 187 }
 188
 189 static void wm_adsp_buf_free(struct list_head *list)
 190 {
 191         while (!list_empty(list)) {
 192                 struct wm_adsp_buf *buf = list_first_entry(list,
 193                                                            struct wm_adsp_buf,
 194                                                            list);
 195                 list_del(&buf->list);
 196                 vfree(buf->buf);
 197                 kfree(buf);
 198         }
 199 }
 200
 201 #define WM_ADSP_FW_MBC_VSS  0
 202 #define WM_ADSP_FW_HIFI     1
 203 #define WM_ADSP_FW_TX       2
 204 #define WM_ADSP_FW_TX_SPK   3
 205 #define WM_ADSP_FW_RX       4
 206 #define WM_ADSP_FW_RX_ANC   5
 207 #define WM_ADSP_FW_CTRL     6
 208 #define WM_ADSP_FW_ASR      7
 209 #define WM_ADSP_FW_TRACE    8
 210 #define WM_ADSP_FW_SPK_PROT 9
 211 #define WM_ADSP_FW_MISC     10
 212
 213 #define WM_ADSP_NUM_FW      11
 214
 215 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
 216         [WM_ADSP_FW_MBC_VSS] =  "MBC/VSS",
 217         [WM_ADSP_FW_HIFI] =     "MasterHiFi",
 218         [WM_ADSP_FW_TX] =       "Tx",
 219         [WM_ADSP_FW_TX_SPK] =   "Tx Speaker",
 220         [WM_ADSP_FW_RX] =       "Rx",
 221         [WM_ADSP_FW_RX_ANC] =   "Rx ANC",
 222         [WM_ADSP_FW_CTRL] =     "Voice Ctrl",
 223         [WM_ADSP_FW_ASR] =      "ASR Assist",
 224         [WM_ADSP_FW_TRACE] =    "Dbg Trace",
 225         [WM_ADSP_FW_SPK_PROT] = "Protection",
 226         [WM_ADSP_FW_MISC] =     "Misc",
 227 };
 228
 229 struct wm_adsp_system_config_xm_hdr {
 230         __be32 sys_enable;
 231         __be32 fw_id;
 232         __be32 fw_rev;
 233         __be32 boot_status;
 234         __be32 watchdog;
 235         __be32 dma_buffer_size;
 236         __be32 rdma[6];
 237         __be32 wdma[8];
 238         __be32 build_job_name[3];
 239         __be32 build_job_number;
 240 };
 241
 242 struct wm_adsp_alg_xm_struct {
 243         __be32 magic;
 244         __be32 smoothing;
 245         __be32 threshold;
 246         __be32 host_buf_ptr;
 247         __be32 start_seq;
 248         __be32 high_water_mark;
 249         __be32 low_water_mark;
 250         __be64 smoothed_power;
 251 };
 252
 253 struct wm_adsp_buffer {
 254         __be32 X_buf_base;              /* XM base addr of first X area */
 255         __be32 X_buf_size;              /* Size of 1st X area in words */
 256         __be32 X_buf_base2;             /* XM base addr of 2nd X area */
 257         __be32 X_buf_brk;               /* Total X size in words */
 258         __be32 Y_buf_base;              /* YM base addr of Y area */
 259         __be32 wrap;                    /* Total size X and Y in words */
 260         __be32 high_water_mark;         /* Point at which IRQ is asserted */
 261         __be32 irq_count;               /* bits 1-31 count IRQ assertions */
 262         __be32 irq_ack;                 /* acked IRQ count, bit 0 enables IRQ */
 263         __be32 next_write_index;        /* word index of next write */
 264         __be32 next_read_index;         /* word index of next read */
 265         __be32 error;                   /* error if any */
 266         __be32 oldest_block_index;      /* word index of oldest surviving */
 267         __be32 requested_rewind;        /* how many blocks rewind was done */
 268         __be32 reserved_space;          /* internal */
 269         __be32 min_free;                /* min free space since stream start */
 270         __be32 blocks_written[2];       /* total blocks written (64 bit) */
 271         __be32 words_written[2];        /* total words written (64 bit) */
 272 };
 273
 274 struct wm_adsp_compr_buf {
 275         struct wm_adsp *dsp;
 276
 277         struct wm_adsp_buffer_region *regions;
 278         u32 host_buf_ptr;
 279
 280         u32 error;
 281         u32 irq_count;
 282         int read_index;
 283         int avail;
 284 };
 285
 286 struct wm_adsp_compr {
 287         struct wm_adsp *dsp;
 288         struct wm_adsp_compr_buf *buf;
 289
 290         struct snd_compr_stream *stream;
 291         struct snd_compressed_buffer size;
 292
 293         u32 *raw_buf;
 294         unsigned int copied_total;
 295 };
 296
 297 #define WM_ADSP_DATA_WORD_SIZE         3
 298
 299 #define WM_ADSP_MIN_FRAGMENTS          1
 300 #define WM_ADSP_MAX_FRAGMENTS          256
 301 #define WM_ADSP_MIN_FRAGMENT_SIZE      (64 * WM_ADSP_DATA_WORD_SIZE)
 302 #define WM_ADSP_MAX_FRAGMENT_SIZE      (4096 * WM_ADSP_DATA_WORD_SIZE)
 303
 304 #define WM_ADSP_ALG_XM_STRUCT_MAGIC    0x49aec7
 305
 306 #define HOST_BUFFER_FIELD(field) \
 307         (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
 308
 309 #define ALG_XM_FIELD(field) \
 310         (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
 311
 312 static int wm_adsp_buffer_init(struct wm_adsp *dsp);
 313 static int wm_adsp_buffer_free(struct wm_adsp *dsp);
 314
 315 struct wm_adsp_buffer_region {
 316         unsigned int offset;
 317         unsigned int cumulative_size;
 318         unsigned int mem_type;
 319         unsigned int base_addr;
 320 };
 321
 322 struct wm_adsp_buffer_region_def {
 323         unsigned int mem_type;
 324         unsigned int base_offset;
 325         unsigned int size_offset;
 326 };
 327
 328 static const struct wm_adsp_buffer_region_def default_regions[] = {
 329         {
 330                 .mem_type = WMFW_ADSP2_XM,
 331                 .base_offset = HOST_BUFFER_FIELD(X_buf_base),
 332                 .size_offset = HOST_BUFFER_FIELD(X_buf_size),
 333         },
 334         {
 335                 .mem_type = WMFW_ADSP2_XM,
 336                 .base_offset = HOST_BUFFER_FIELD(X_buf_base2),
 337                 .size_offset = HOST_BUFFER_FIELD(X_buf_brk),
 338         },
 339         {
 340                 .mem_type = WMFW_ADSP2_YM,
 341                 .base_offset = HOST_BUFFER_FIELD(Y_buf_base),
 342                 .size_offset = HOST_BUFFER_FIELD(wrap),
 343         },
 344 };
 345
 346 struct wm_adsp_fw_caps {
 347         u32 id;
 348         struct snd_codec_desc desc;
 349         int num_regions;
 350         const struct wm_adsp_buffer_region_def *region_defs;
 351 };
 352
 353 static const struct wm_adsp_fw_caps ctrl_caps[] = {
 354         {
 355                 .id = SND_AUDIOCODEC_BESPOKE,
 356                 .desc = {
 357                         .max_ch = 1,
 358                         .sample_rates = { 16000 },
 359                         .num_sample_rates = 1,
 360                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 361                 },
 362                 .num_regions = ARRAY_SIZE(default_regions),
 363                 .region_defs = default_regions,
 364         },
 365 };
 366
 367 static const struct wm_adsp_fw_caps trace_caps[] = {
 368         {
 369                 .id = SND_AUDIOCODEC_BESPOKE,
 370                 .desc = {
 371                         .max_ch = 8,
 372                         .sample_rates = {
 373                                 4000, 8000, 11025, 12000, 16000, 22050,
 374                                 24000, 32000, 44100, 48000, 64000, 88200,
 375                                 96000, 176400, 192000
 376                         },
 377                         .num_sample_rates = 15,
 378                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 379                 },
 380                 .num_regions = ARRAY_SIZE(default_regions),
 381                 .region_defs = default_regions,
 382         },
 383 };
 384
 385 static const struct {
 386         const char *file;
 387         int compr_direction;
 388         int num_caps;
 389         const struct wm_adsp_fw_caps *caps;
 390 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
 391         [WM_ADSP_FW_MBC_VSS] =  { .file = "mbc-vss" },
 392         [WM_ADSP_FW_HIFI] =     { .file = "hifi" },
 393         [WM_ADSP_FW_TX] =       { .file = "tx" },
 394         [WM_ADSP_FW_TX_SPK] =   { .file = "tx-spk" },
 395         [WM_ADSP_FW_RX] =       { .file = "rx" },
 396         [WM_ADSP_FW_RX_ANC] =   { .file = "rx-anc" },
 397         [WM_ADSP_FW_CTRL] =     {
 398                 .file = "ctrl",
 399                 .compr_direction = SND_COMPRESS_CAPTURE,
 400                 .num_caps = ARRAY_SIZE(ctrl_caps),
 401                 .caps = ctrl_caps,
 402         },
 403         [WM_ADSP_FW_ASR] =      { .file = "asr" },
 404         [WM_ADSP_FW_TRACE] =    {
 405                 .file = "trace",
 406                 .compr_direction = SND_COMPRESS_CAPTURE,
 407                 .num_caps = ARRAY_SIZE(trace_caps),
 408                 .caps = trace_caps,
 409         },
 410         [WM_ADSP_FW_SPK_PROT] = { .file = "spk-prot" },
 411         [WM_ADSP_FW_MISC] =     { .file = "misc" },
 412 };
 413
 414 struct wm_coeff_ctl_ops {
 415         int (*xget)(struct snd_kcontrol *kcontrol,
 416                     struct snd_ctl_elem_value *ucontrol);
 417         int (*xput)(struct snd_kcontrol *kcontrol,
 418                     struct snd_ctl_elem_value *ucontrol);
 419         int (*xinfo)(struct snd_kcontrol *kcontrol,
 420                      struct snd_ctl_elem_info *uinfo);
 421 };
 422
 423 struct wm_coeff_ctl {
 424         const char *name;
 425         const char *fw_name;
 426         struct wm_adsp_alg_region alg_region;
 427         struct wm_coeff_ctl_ops ops;
 428         struct wm_adsp *dsp;
 429         unsigned int enabled:1;
 430         struct list_head list;
 431         void *cache;
 432         unsigned int offset;
 433         size_t len;
 434         unsigned int set:1;
 435         struct snd_kcontrol *kcontrol;
 436         unsigned int flags;
 437 };
 438
 439 #ifdef CONFIG_DEBUG_FS
 440 static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
 441 {
 442         char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
 443
 444         kfree(dsp->wmfw_file_name);
 445         dsp->wmfw_file_name = tmp;
 446 }
 447
 448 static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
 449 {
 450         char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
 451
 452         kfree(dsp->bin_file_name);
 453         dsp->bin_file_name = tmp;
 454 }
 455
 456 static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
 457 {
 458         kfree(dsp->wmfw_file_name);
 459         kfree(dsp->bin_file_name);
 460         dsp->wmfw_file_name = NULL;
 461         dsp->bin_file_name = NULL;
 462 }
 463
 464 static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
 465                                          char __user *user_buf,
 466                                          size_t count, loff_t *ppos)
 467 {
 468         struct wm_adsp *dsp = file->private_data;
 469         ssize_t ret;
 470
 471         mutex_lock(&dsp->pwr_lock);
 472
 473         if (!dsp->wmfw_file_name || !dsp->running)
 474                 ret = 0;
 475         else
 476                 ret = simple_read_from_buffer(user_buf, count, ppos,
 477                                               dsp->wmfw_file_name,
 478                                               strlen(dsp->wmfw_file_name));
 479
 480         mutex_unlock(&dsp->pwr_lock);
 481         return ret;
 482 }
 483
 484 static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
 485                                         char __user *user_buf,
 486                                         size_t count, loff_t *ppos)
 487 {
 488         struct wm_adsp *dsp = file->private_data;
 489         ssize_t ret;
 490
 491         mutex_lock(&dsp->pwr_lock);
 492
 493         if (!dsp->bin_file_name || !dsp->running)
 494                 ret = 0;
 495         else
 496                 ret = simple_read_from_buffer(user_buf, count, ppos,
 497                                               dsp->bin_file_name,
 498                                               strlen(dsp->bin_file_name));
 499
 500         mutex_unlock(&dsp->pwr_lock);
 501         return ret;
 502 }
 503
 504 static const struct {
 505         const char *name;
 506         const struct file_operations fops;
 507 } wm_adsp_debugfs_fops[] = {
 508         {
 509                 .name = "wmfw_file_name",
 510                 .fops = {
 511                         .open = simple_open,
 512                         .read = wm_adsp_debugfs_wmfw_read,
 513                 },
 514         },
 515         {
 516                 .name = "bin_file_name",
 517                 .fops = {
 518                         .open = simple_open,
 519                         .read = wm_adsp_debugfs_bin_read,
 520                 },
 521         },
 522 };
 523
 524 static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
 525                                   struct snd_soc_codec *codec)
 526 {
 527         struct dentry *root = NULL;
 528         char *root_name;
 529         int i;
 530
 531         if (!codec->component.debugfs_root) {
 532                 adsp_err(dsp, "No codec debugfs root\n");
 533                 goto err;
 534         }
 535
 536         root_name = kmalloc(PAGE_SIZE, GFP_KERNEL);
 537         if (!root_name)
 538                 goto err;
 539
 540         snprintf(root_name, PAGE_SIZE, "dsp%d", dsp->num);
 541         root = debugfs_create_dir(root_name, codec->component.debugfs_root);
 542         kfree(root_name);
 543
 544         if (!root)
 545                 goto err;
 546
 547         if (!debugfs_create_bool("running", S_IRUGO, root, &dsp->running))
 548                 goto err;
 549
 550         if (!debugfs_create_x32("fw_id", S_IRUGO, root, &dsp->fw_id))
 551                 goto err;
 552
 553         if (!debugfs_create_x32("fw_version", S_IRUGO, root,
 554                                 &dsp->fw_id_version))
 555                 goto err;
 556
 557         for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i) {
 558                 if (!debugfs_create_file(wm_adsp_debugfs_fops[i].name,
 559                                          S_IRUGO, root, dsp,
 560                                          &wm_adsp_debugfs_fops[i].fops))
 561                         goto err;
 562         }
 563
 564         dsp->debugfs_root = root;
 565         return;
 566
 567 err:
 568         debugfs_remove_recursive(root);
 569         adsp_err(dsp, "Failed to create debugfs\n");
 570 }
 571
 572 static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
 573 {
 574         wm_adsp_debugfs_clear(dsp);
 575         debugfs_remove_recursive(dsp->debugfs_root);
 576 }
 577 #else
 578 static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
 579                                          struct snd_soc_codec *codec)
 580 {
 581 }
 582
 583 static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
 584 {
 585 }
 586
 587 static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
 588                                                  const char *s)
 589 {
 590 }
 591
 592 static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
 593                                                 const char *s)
 594 {
 595 }
 596
 597 static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
 598 {
 599 }
 600 #endif
 601
 602 static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
 603                           struct snd_ctl_elem_value *ucontrol)
 604 {
 605         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 606         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 607         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
 608
 609         ucontrol->value.integer.value[0] = dsp[e->shift_l].fw;
 610
 611         return 0;
 612 }
 613
 614 static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
 615                           struct snd_ctl_elem_value *ucontrol)
 616 {
 617         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 618         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 619         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
 620         int ret = 0;
 621
 622         if (ucontrol->value.integer.value[0] == dsp[e->shift_l].fw)
 623                 return 0;
 624
 625         if (ucontrol->value.integer.value[0] >= WM_ADSP_NUM_FW)
 626                 return -EINVAL;
 627
 628         mutex_lock(&dsp[e->shift_l].pwr_lock);
 629
 630         if (dsp[e->shift_l].running || dsp[e->shift_l].compr)
 631                 ret = -EBUSY;
 632         else
 633                 dsp[e->shift_l].fw = ucontrol->value.integer.value[0];
 634
 635         mutex_unlock(&dsp[e->shift_l].pwr_lock);
 636
 637         return ret;
 638 }
 639
 640 static const struct soc_enum wm_adsp_fw_enum[] = {
 641         SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 642         SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 643         SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 644         SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 645 };
 646
 647 const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
 648         SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
 649                      wm_adsp_fw_get, wm_adsp_fw_put),
 650         SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
 651                      wm_adsp_fw_get, wm_adsp_fw_put),
 652         SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
 653                      wm_adsp_fw_get, wm_adsp_fw_put),
 654         SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
 655                      wm_adsp_fw_get, wm_adsp_fw_put),
 656 };
 657 EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);
 658
 659 static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
 660                                                         int type)
 661 {
 662         int i;
 663
 664         for (i = 0; i < dsp->num_mems; i++)
 665                 if (dsp->mem[i].type == type)
 666                         return &dsp->mem[i];
 667
 668         return NULL;
 669 }
 670
 671 static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
 672                                           unsigned int offset)
 673 {
 674         if (WARN_ON(!mem))
 675                 return offset;
 676         switch (mem->type) {
 677         case WMFW_ADSP1_PM:
 678                 return mem->base + (offset * 3);
 679         case WMFW_ADSP1_DM:
 680                 return mem->base + (offset * 2);
 681         case WMFW_ADSP2_XM:
 682                 return mem->base + (offset * 2);
 683         case WMFW_ADSP2_YM:
 684                 return mem->base + (offset * 2);
 685         case WMFW_ADSP1_ZM:
 686                 return mem->base + (offset * 2);
 687         default:
 688                 WARN(1, "Unknown memory region type");
 689                 return offset;
 690         }
 691 }
 692
 693 static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
 694 {
 695         u16 scratch[4];
 696         int ret;
 697
 698         ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2_SCRATCH0,
 699                                 scratch, sizeof(scratch));
 700         if (ret) {
 701                 adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
 702                 return;
 703         }
 704
 705         adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
 706                  be16_to_cpu(scratch[0]),
 707                  be16_to_cpu(scratch[1]),
 708                  be16_to_cpu(scratch[2]),
 709                  be16_to_cpu(scratch[3]));
 710 }
 711
 712 static int wm_coeff_info(struct snd_kcontrol *kctl,
 713                          struct snd_ctl_elem_info *uinfo)
 714 {
 715         struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
 716
 717         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 718         uinfo->count = ctl->len;
 719         return 0;
 720 }
 721
 722 static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
 723                                   const void *buf, size_t len)
 724 {
 725         struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
 726         const struct wm_adsp_region *mem;
 727         struct wm_adsp *dsp = ctl->dsp;
 728         void *scratch;
 729         int ret;
 730         unsigned int reg;
 731
 732         mem = wm_adsp_find_region(dsp, alg_region->type);
 733         if (!mem) {
 734                 adsp_err(dsp, "No base for region %x\n",
 735                          alg_region->type);
 736                 return -EINVAL;
 737         }
 738
 739         reg = ctl->alg_region.base + ctl->offset;
 740         reg = wm_adsp_region_to_reg(mem, reg);
 741
 742         scratch = kmemdup(buf, ctl->len, GFP_KERNEL | GFP_DMA);
 743         if (!scratch)
 744                 return -ENOMEM;
 745
 746         ret = regmap_raw_write(dsp->regmap, reg, scratch,
 747                                ctl->len);
 748         if (ret) {
 749                 adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
 750                          ctl->len, reg, ret);
 751                 kfree(scratch);
 752                 return ret;
 753         }
 754         adsp_dbg(dsp, "Wrote %zu bytes to %x\n", ctl->len, reg);
 755
 756         kfree(scratch);
 757
 758         return 0;
 759 }
 760
 761 static int wm_coeff_put(struct snd_kcontrol *kctl,
 762                         struct snd_ctl_elem_value *ucontrol)
 763 {
 764         struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
 765         char *p = ucontrol->value.bytes.data;
 766         int ret = 0;
 767
 768         mutex_lock(&ctl->dsp->pwr_lock);
 769
 770         memcpy(ctl->cache, p, ctl->len);
 771
 772         ctl->set = 1;
 773         if (ctl->enabled)
 774                 ret = wm_coeff_write_control(ctl, p, ctl->len);
 775
 776         mutex_unlock(&ctl->dsp->pwr_lock);
 777
 778         return ret;
 779 }
 780
 781 static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
 782                                  void *buf, size_t len)
 783 {
 784         struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
 785         const struct wm_adsp_region *mem;
 786         struct wm_adsp *dsp = ctl->dsp;
 787         void *scratch;
 788         int ret;
 789         unsigned int reg;
 790
 791         mem = wm_adsp_find_region(dsp, alg_region->type);
 792         if (!mem) {
 793                 adsp_err(dsp, "No base for region %x\n",
 794                          alg_region->type);
 795                 return -EINVAL;
 796         }
 797
 798         reg = ctl->alg_region.base + ctl->offset;
 799         reg = wm_adsp_region_to_reg(mem, reg);
 800
 801         scratch = kmalloc(ctl->len, GFP_KERNEL | GFP_DMA);
 802         if (!scratch)
 803                 return -ENOMEM;
 804
 805         ret = regmap_raw_read(dsp->regmap, reg, scratch, ctl->len);
 806         if (ret) {
 807                 adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
 808                          ctl->len, reg, ret);
 809                 kfree(scratch);
 810                 return ret;
 811         }
 812         adsp_dbg(dsp, "Read %zu bytes from %x\n", ctl->len, reg);
 813
 814         memcpy(buf, scratch, ctl->len);
 815         kfree(scratch);
 816
 817         return 0;
 818 }
 819
 820 static int wm_coeff_get(struct snd_kcontrol *kctl,
 821                         struct snd_ctl_elem_value *ucontrol)
 822 {
 823         struct wm_coeff_ctl *ctl = (struct wm_coeff_ctl *)kctl->private_value;
 824         char *p = ucontrol->value.bytes.data;
 825         int ret = 0;
 826
 827         mutex_lock(&ctl->dsp->pwr_lock);
 828
 829         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
 830                 if (ctl->enabled)
 831                         ret = wm_coeff_read_control(ctl, p, ctl->len);
 832                 else
 833                         ret = -EPERM;
 834         } else {
 835                 if (!ctl->flags && ctl->enabled)
 836                         ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
 837
 838                 memcpy(p, ctl->cache, ctl->len);
 839         }
 840
 841         mutex_unlock(&ctl->dsp->pwr_lock);
 842
 843         return ret;
 844 }
 845
 846 struct wmfw_ctl_work {
 847         struct wm_adsp *dsp;
 848         struct wm_coeff_ctl *ctl;
 849         struct work_struct work;
 850 };
 851
 852 static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
 853 {
 854         struct snd_kcontrol_new *kcontrol;
 855         int ret;
 856
 857         if (!ctl || !ctl->name)
 858                 return -EINVAL;
 859
 860         kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
 861         if (!kcontrol)
 862                 return -ENOMEM;
 863         kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 864
 865         kcontrol->name = ctl->name;
 866         kcontrol->info = wm_coeff_info;
 867         kcontrol->get = wm_coeff_get;
 868         kcontrol->put = wm_coeff_put;
 869         kcontrol->private_value = (unsigned long)ctl;
 870
 871         if (ctl->flags) {
 872                 if (ctl->flags & WMFW_CTL_FLAG_WRITEABLE)
 873                         kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
 874                 if (ctl->flags & WMFW_CTL_FLAG_READABLE)
 875                         kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_READ;
 876                 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
 877                         kcontrol->access |= SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 878         }
 879
 880         ret = snd_soc_add_card_controls(dsp->card,
 881                                         kcontrol, 1);
 882         if (ret < 0)
 883                 goto err_kcontrol;
 884
 885         kfree(kcontrol);
 886
 887         ctl->kcontrol = snd_soc_card_get_kcontrol(dsp->card,
 888                                                   ctl->name);
 889
 890         return 0;
 891
 892 err_kcontrol:
 893         kfree(kcontrol);
 894         return ret;
 895 }
 896
 897 static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
 898 {
 899         struct wm_coeff_ctl *ctl;
 900         int ret;
 901
 902         list_for_each_entry(ctl, &dsp->ctl_list, list) {
 903                 if (!ctl->enabled || ctl->set)
 904                         continue;
 905                 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
 906                         continue;
 907
 908                 ret = wm_coeff_read_control(ctl,
 909                                             ctl->cache,
 910                                             ctl->len);
 911                 if (ret < 0)
 912                         return ret;
 913         }
 914
 915         return 0;
 916 }
 917
 918 static int wm_coeff_sync_controls(struct wm_adsp *dsp)
 919 {
 920         struct wm_coeff_ctl *ctl;
 921         int ret;
 922
 923         list_for_each_entry(ctl, &dsp->ctl_list, list) {
 924                 if (!ctl->enabled)
 925                         continue;
 926                 if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
 927                         ret = wm_coeff_write_control(ctl,
 928                                                      ctl->cache,
 929                                                      ctl->len);
 930                         if (ret < 0)
 931                                 return ret;
 932                 }
 933         }
 934
 935         return 0;
 936 }
 937
 938 static void wm_adsp_ctl_work(struct work_struct *work)
 939 {
 940         struct wmfw_ctl_work *ctl_work = container_of(work,
 941                                                       struct wmfw_ctl_work,
 942                                                       work);
 943
 944         wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
 945         kfree(ctl_work);
 946 }
 947
 948 static int wm_adsp_create_control(struct wm_adsp *dsp,
 949                                   const struct wm_adsp_alg_region *alg_region,
 950                                   unsigned int offset, unsigned int len,
 951                                   const char *subname, unsigned int subname_len,
 952                                   unsigned int flags)
 953 {
 954         struct wm_coeff_ctl *ctl;
 955         struct wmfw_ctl_work *ctl_work;
 956         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 957         char *region_name;
 958         int ret;
 959
 960         if (flags & WMFW_CTL_FLAG_SYS)
 961                 return 0;
 962
 963         switch (alg_region->type) {
 964         case WMFW_ADSP1_PM:
 965                 region_name = "PM";
 966                 break;
 967         case WMFW_ADSP1_DM:
 968                 region_name = "DM";
 969                 break;
 970         case WMFW_ADSP2_XM:
 971                 region_name = "XM";
 972                 break;
 973         case WMFW_ADSP2_YM:
 974                 region_name = "YM";
 975                 break;
 976         case WMFW_ADSP1_ZM:
 977                 region_name = "ZM";
 978                 break;
 979         default:
 980                 adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
 981                 return -EINVAL;
 982         }
 983
 984         switch (dsp->fw_ver) {
 985         case 0:
 986         case 1:
 987                 snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
 988                          dsp->num, region_name, alg_region->alg);
 989                 break;
 990         default:
 991                 ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
 992                                 "DSP%d%c %.12s %x", dsp->num, *region_name,
 993                                 wm_adsp_fw_text[dsp->fw], alg_region->alg);
 994
 995                 /* Truncate the subname from the start if it is too long */
 996                 if (subname) {
 997                         int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
 998                         int skip = 0;
 999
1000                         if (subname_len > avail)
1001                                 skip = subname_len - avail;
1002
1003                         snprintf(name + ret,
1004                                  SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, " %.*s",
1005                                  subname_len - skip, subname + skip);
1006                 }
1007                 break;
1008         }
1009
1010         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1011                 if (!strcmp(ctl->name, name)) {
1012                         if (!ctl->enabled)
1013                                 ctl->enabled = 1;
1014                         return 0;
1015                 }
1016         }
1017
1018         ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
1019         if (!ctl)
1020                 return -ENOMEM;
1021         ctl->fw_name = wm_adsp_fw_text[dsp->fw];
1022         ctl->alg_region = *alg_region;
1023         ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
1024         if (!ctl->name) {
1025                 ret = -ENOMEM;
1026                 goto err_ctl;
1027         }
1028         ctl->enabled = 1;
1029         ctl->set = 0;
1030         ctl->ops.xget = wm_coeff_get;
1031         ctl->ops.xput = wm_coeff_put;
1032         ctl->dsp = dsp;
1033
1034         ctl->flags = flags;
1035         ctl->offset = offset;
1036         if (len > 512) {
1037                 adsp_warn(dsp, "Truncating control %s from %d\n",
1038                           ctl->name, len);
1039                 len = 512;
1040         }
1041         ctl->len = len;
1042         ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
1043         if (!ctl->cache) {
1044                 ret = -ENOMEM;
1045                 goto err_ctl_name;
1046         }
1047
1048         list_add(&ctl->list, &dsp->ctl_list);
1049
1050         ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
1051         if (!ctl_work) {
1052                 ret = -ENOMEM;
1053                 goto err_ctl_cache;
1054         }
1055
1056         ctl_work->dsp = dsp;
1057         ctl_work->ctl = ctl;
1058         INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
1059         schedule_work(&ctl_work->work);
1060
1061         return 0;
1062
1063 err_ctl_cache:
1064         kfree(ctl->cache);
1065 err_ctl_name:
1066         kfree(ctl->name);
1067 err_ctl:
1068         kfree(ctl);
1069
1070         return ret;
1071 }
1072
1073 struct wm_coeff_parsed_alg {
1074         int id;
1075         const u8 *name;
1076         int name_len;
1077         int ncoeff;
1078 };
1079
1080 struct wm_coeff_parsed_coeff {
1081         int offset;
1082         int mem_type;
1083         const u8 *name;
1084         int name_len;
1085         int ctl_type;
1086         int flags;
1087         int len;
1088 };
1089
1090 static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
1091 {
1092         int length;
1093
1094         switch (bytes) {
1095         case 1:
1096                 length = **pos;
1097                 break;
1098         case 2:
1099                 length = le16_to_cpu(*((__le16 *)*pos));
1100                 break;
1101         default:
1102                 return 0;
1103         }
1104
1105         if (str)
1106                 *str = *pos + bytes;
1107
1108         *pos += ((length + bytes) + 3) & ~0x03;
1109
1110         return length;
1111 }
1112
1113 static int wm_coeff_parse_int(int bytes, const u8 **pos)
1114 {
1115         int val = 0;
1116
1117         switch (bytes) {
1118         case 2:
1119                 val = le16_to_cpu(*((__le16 *)*pos));
1120                 break;
1121         case 4:
1122                 val = le32_to_cpu(*((__le32 *)*pos));
1123                 break;
1124         default:
1125                 break;
1126         }
1127
1128         *pos += bytes;
1129
1130         return val;
1131 }
1132
1133 static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
1134                                       struct wm_coeff_parsed_alg *blk)
1135 {
1136         const struct wmfw_adsp_alg_data *raw;
1137
1138         switch (dsp->fw_ver) {
1139         case 0:
1140         case 1:
1141                 raw = (const struct wmfw_adsp_alg_data *)*data;
1142                 *data = raw->data;
1143
1144                 blk->id = le32_to_cpu(raw->id);
1145                 blk->name = raw->name;
1146                 blk->name_len = strlen(raw->name);
1147                 blk->ncoeff = le32_to_cpu(raw->ncoeff);
1148                 break;
1149         default:
1150                 blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
1151                 blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
1152                                                       &blk->name);
1153                 wm_coeff_parse_string(sizeof(u16), data, NULL);
1154                 blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
1155                 break;
1156         }
1157
1158         adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
1159         adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
1160         adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
1161 }
1162
1163 static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
1164                                         struct wm_coeff_parsed_coeff *blk)
1165 {
1166         const struct wmfw_adsp_coeff_data *raw;
1167         const u8 *tmp;
1168         int length;
1169
1170         switch (dsp->fw_ver) {
1171         case 0:
1172         case 1:
1173                 raw = (const struct wmfw_adsp_coeff_data *)*data;
1174                 *data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
1175
1176                 blk->offset = le16_to_cpu(raw->hdr.offset);
1177                 blk->mem_type = le16_to_cpu(raw->hdr.type);
1178                 blk->name = raw->name;
1179                 blk->name_len = strlen(raw->name);
1180                 blk->ctl_type = le16_to_cpu(raw->ctl_type);
1181                 blk->flags = le16_to_cpu(raw->flags);
1182                 blk->len = le32_to_cpu(raw->len);
1183                 break;
1184         default:
1185                 tmp = *data;
1186                 blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
1187                 blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
1188                 length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
1189                 blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
1190                                                       &blk->name);
1191                 wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
1192                 wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
1193                 blk->ctl_type = wm_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
1194                 blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
1195                 blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
1196
1197                 *data = *data + sizeof(raw->hdr) + length;
1198                 break;
1199         }
1200
1201         adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
1202         adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
1203         adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
1204         adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
1205         adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
1206         adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
1207 }
1208
1209 static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
1210                                const struct wmfw_region *region)
1211 {
1212         struct wm_adsp_alg_region alg_region = {};
1213         struct wm_coeff_parsed_alg alg_blk;
1214         struct wm_coeff_parsed_coeff coeff_blk;
1215         const u8 *data = region->data;
1216         int i, ret;
1217
1218         wm_coeff_parse_alg(dsp, &data, &alg_blk);
1219         for (i = 0; i < alg_blk.ncoeff; i++) {
1220                 wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
1221
1222                 switch (coeff_blk.ctl_type) {
1223                 case SNDRV_CTL_ELEM_TYPE_BYTES:
1224                         break;
1225                 default:
1226                         adsp_err(dsp, "Unknown control type: %d\n",
1227                                  coeff_blk.ctl_type);
1228                         return -EINVAL;
1229                 }
1230
1231                 alg_region.type = coeff_blk.mem_type;
1232                 alg_region.alg = alg_blk.id;
1233
1234                 ret = wm_adsp_create_control(dsp, &alg_region,
1235                                              coeff_blk.offset,
1236                                              coeff_blk.len,
1237                                              coeff_blk.name,
1238                                              coeff_blk.name_len,
1239                                              coeff_blk.flags);
1240                 if (ret < 0)
1241                         adsp_err(dsp, "Failed to create control: %.*s, %d\n",
1242                                  coeff_blk.name_len, coeff_blk.name, ret);
1243         }
1244
1245         return 0;
1246 }
1247
1248 static int wm_adsp_load(struct wm_adsp *dsp)
1249 {
1250         LIST_HEAD(buf_list);
1251         const struct firmware *firmware;
1252         struct regmap *regmap = dsp->regmap;
1253         unsigned int pos = 0;
1254         const struct wmfw_header *header;
1255         const struct wmfw_adsp1_sizes *adsp1_sizes;
1256         const struct wmfw_adsp2_sizes *adsp2_sizes;
1257         const struct wmfw_footer *footer;
1258         const struct wmfw_region *region;
1259         const struct wm_adsp_region *mem;
1260         const char *region_name;
1261         char *file, *text;
1262         struct wm_adsp_buf *buf;
1263         unsigned int reg;
1264         int regions = 0;
1265         int ret, offset, type, sizes;
1266
1267         file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1268         if (file == NULL)
1269                 return -ENOMEM;
1270
1271         snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
1272                  wm_adsp_fw[dsp->fw].file);
1273         file[PAGE_SIZE - 1] = '\0';
1274
1275         ret = request_firmware(&firmware, file, dsp->dev);
1276         if (ret != 0) {
1277                 adsp_err(dsp, "Failed to request '%s'\n", file);
1278                 goto out;
1279         }
1280         ret = -EINVAL;
1281
1282         pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1283         if (pos >= firmware->size) {
1284                 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1285                          file, firmware->size);
1286                 goto out_fw;
1287         }
1288
1289         header = (void *)&firmware->data[0];
1290
1291         if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
1292                 adsp_err(dsp, "%s: invalid magic\n", file);
1293                 goto out_fw;
1294         }
1295
1296         switch (header->ver) {
1297         case 0:
1298                 adsp_warn(dsp, "%s: Depreciated file format %d\n",
1299                           file, header->ver);
1300                 break;
1301         case 1:
1302         case 2:
1303                 break;
1304         default:
1305                 adsp_err(dsp, "%s: unknown file format %d\n",
1306                          file, header->ver);
1307                 goto out_fw;
1308         }
1309
1310         adsp_info(dsp, "Firmware version: %d\n", header->ver);
1311         dsp->fw_ver = header->ver;
1312
1313         if (header->core != dsp->type) {
1314                 adsp_err(dsp, "%s: invalid core %d != %d\n",
1315                          file, header->core, dsp->type);
1316                 goto out_fw;
1317         }
1318
1319         switch (dsp->type) {
1320         case WMFW_ADSP1:
1321                 pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1322                 adsp1_sizes = (void *)&(header[1]);
1323                 footer = (void *)&(adsp1_sizes[1]);
1324                 sizes = sizeof(*adsp1_sizes);
1325
1326                 adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
1327                          file, le32_to_cpu(adsp1_sizes->dm),
1328                          le32_to_cpu(adsp1_sizes->pm),
1329                          le32_to_cpu(adsp1_sizes->zm));
1330                 break;
1331
1332         case WMFW_ADSP2:
1333                 pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
1334                 adsp2_sizes = (void *)&(header[1]);
1335                 footer = (void *)&(adsp2_sizes[1]);
1336                 sizes = sizeof(*adsp2_sizes);
1337
1338                 adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
1339                          file, le32_to_cpu(adsp2_sizes->xm),
1340                          le32_to_cpu(adsp2_sizes->ym),
1341                          le32_to_cpu(adsp2_sizes->pm),
1342                          le32_to_cpu(adsp2_sizes->zm));
1343                 break;
1344
1345         default:
1346                 WARN(1, "Unknown DSP type");
1347                 goto out_fw;
1348         }
1349
1350         if (le32_to_cpu(header->len) != sizeof(*header) +
1351             sizes + sizeof(*footer)) {
1352                 adsp_err(dsp, "%s: unexpected header length %d\n",
1353                          file, le32_to_cpu(header->len));
1354                 goto out_fw;
1355         }
1356
1357         adsp_dbg(dsp, "%s: timestamp %llu\n", file,
1358                  le64_to_cpu(footer->timestamp));
1359
1360         while (pos < firmware->size &&
1361                pos - firmware->size > sizeof(*region)) {
1362                 region = (void *)&(firmware->data[pos]);
1363                 region_name = "Unknown";
1364                 reg = 0;
1365                 text = NULL;
1366                 offset = le32_to_cpu(region->offset) & 0xffffff;
1367                 type = be32_to_cpu(region->type) & 0xff;
1368                 mem = wm_adsp_find_region(dsp, type);
1369
1370                 switch (type) {
1371                 case WMFW_NAME_TEXT:
1372                         region_name = "Firmware name";
1373                         text = kzalloc(le32_to_cpu(region->len) + 1,
1374                                        GFP_KERNEL);
1375                         break;
1376                 case WMFW_ALGORITHM_DATA:
1377                         region_name = "Algorithm";
1378                         ret = wm_adsp_parse_coeff(dsp, region);
1379                         if (ret != 0)
1380                                 goto out_fw;
1381                         break;
1382                 case WMFW_INFO_TEXT:
1383                         region_name = "Information";
1384                         text = kzalloc(le32_to_cpu(region->len) + 1,
1385                                        GFP_KERNEL);
1386                         break;
1387                 case WMFW_ABSOLUTE:
1388                         region_name = "Absolute";
1389                         reg = offset;
1390                         break;
1391                 case WMFW_ADSP1_PM:
1392                         region_name = "PM";
1393                         reg = wm_adsp_region_to_reg(mem, offset);
1394                         break;
1395                 case WMFW_ADSP1_DM:
1396                         region_name = "DM";
1397                         reg = wm_adsp_region_to_reg(mem, offset);
1398                         break;
1399                 case WMFW_ADSP2_XM:
1400                         region_name = "XM";
1401                         reg = wm_adsp_region_to_reg(mem, offset);
1402                         break;
1403                 case WMFW_ADSP2_YM:
1404                         region_name = "YM";
1405                         reg = wm_adsp_region_to_reg(mem, offset);
1406                         break;
1407                 case WMFW_ADSP1_ZM:
1408                         region_name = "ZM";
1409                         reg = wm_adsp_region_to_reg(mem, offset);
1410                         break;
1411                 default:
1412                         adsp_warn(dsp,
1413                                   "%s.%d: Unknown region type %x at %d(%x)\n",
1414                                   file, regions, type, pos, pos);
1415                         break;
1416                 }
1417
1418                 adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
1419                          regions, le32_to_cpu(region->len), offset,
1420                          region_name);
1421
1422                 if (text) {
1423                         memcpy(text, region->data, le32_to_cpu(region->len));
1424                         adsp_info(dsp, "%s: %s\n", file, text);
1425                         kfree(text);
1426                 }
1427
1428                 if (reg) {
1429                         buf = wm_adsp_buf_alloc(region->data,
1430                                                 le32_to_cpu(region->len),
1431                                                 &buf_list);
1432                         if (!buf) {
1433                                 adsp_err(dsp, "Out of memory\n");
1434                                 ret = -ENOMEM;
1435                                 goto out_fw;
1436                         }
1437
1438                         ret = regmap_raw_write_async(regmap, reg, buf->buf,
1439                                                      le32_to_cpu(region->len));
1440                         if (ret != 0) {
1441                                 adsp_err(dsp,
1442                                         "%s.%d: Failed to write %d bytes at %d in %s: %d\n",
1443                                         file, regions,
1444                                         le32_to_cpu(region->len), offset,
1445                                         region_name, ret);
1446                                 goto out_fw;
1447                         }
1448                 }
1449
1450                 pos += le32_to_cpu(region->len) + sizeof(*region);
1451                 regions++;
1452         }
1453
1454         ret = regmap_async_complete(regmap);
1455         if (ret != 0) {
1456                 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1457                 goto out_fw;
1458         }
1459
1460         if (pos > firmware->size)
1461                 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1462                           file, regions, pos - firmware->size);
1463
1464         wm_adsp_debugfs_save_wmfwname(dsp, file);
1465
1466 out_fw:
1467         regmap_async_complete(regmap);
1468         wm_adsp_buf_free(&buf_list);
1469         release_firmware(firmware);
1470 out:
1471         kfree(file);
1472
1473         return ret;
1474 }
1475
1476 static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
1477                                   const struct wm_adsp_alg_region *alg_region)
1478 {
1479         struct wm_coeff_ctl *ctl;
1480
1481         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1482                 if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
1483                     alg_region->alg == ctl->alg_region.alg &&
1484                     alg_region->type == ctl->alg_region.type) {
1485                         ctl->alg_region.base = alg_region->base;
1486                 }
1487         }
1488 }
1489
1490 static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
1491                                unsigned int pos, unsigned int len)
1492 {
1493         void *alg;
1494         int ret;
1495         __be32 val;
1496
1497         if (n_algs == 0) {
1498                 adsp_err(dsp, "No algorithms\n");
1499                 return ERR_PTR(-EINVAL);
1500         }
1501
1502         if (n_algs > 1024) {
1503                 adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
1504                 return ERR_PTR(-EINVAL);
1505         }
1506
1507         /* Read the terminator first to validate the length */
1508         ret = regmap_raw_read(dsp->regmap, pos + len, &val, sizeof(val));
1509         if (ret != 0) {
1510                 adsp_err(dsp, "Failed to read algorithm list end: %d\n",
1511                         ret);
1512                 return ERR_PTR(ret);
1513         }
1514
1515         if (be32_to_cpu(val) != 0xbedead)
1516                 adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
1517                           pos + len, be32_to_cpu(val));
1518
1519         alg = kzalloc(len * 2, GFP_KERNEL | GFP_DMA);
1520         if (!alg)
1521                 return ERR_PTR(-ENOMEM);
1522
1523         ret = regmap_raw_read(dsp->regmap, pos, alg, len * 2);
1524         if (ret != 0) {
1525                 adsp_err(dsp, "Failed to read algorithm list: %d\n",
1526                         ret);
1527                 kfree(alg);
1528                 return ERR_PTR(ret);
1529         }
1530
1531         return alg;
1532 }
1533
1534 static struct wm_adsp_alg_region *
1535         wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
1536 {
1537         struct wm_adsp_alg_region *alg_region;
1538
1539         list_for_each_entry(alg_region, &dsp->alg_regions, list) {
1540                 if (id == alg_region->alg && type == alg_region->type)
1541                         return alg_region;
1542         }
1543
1544         return NULL;
1545 }
1546
1547 static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
1548                                                         int type, __be32 id,
1549                                                         __be32 base)
1550 {
1551         struct wm_adsp_alg_region *alg_region;
1552
1553         alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
1554         if (!alg_region)
1555                 return ERR_PTR(-ENOMEM);
1556
1557         alg_region->type = type;
1558         alg_region->alg = be32_to_cpu(id);
1559         alg_region->base = be32_to_cpu(base);
1560
1561         list_add_tail(&alg_region->list, &dsp->alg_regions);
1562
1563         if (dsp->fw_ver > 0)
1564                 wm_adsp_ctl_fixup_base(dsp, alg_region);
1565
1566         return alg_region;
1567 }
1568
1569 static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
1570 {
1571         struct wmfw_adsp1_id_hdr adsp1_id;
1572         struct wmfw_adsp1_alg_hdr *adsp1_alg;
1573         struct wm_adsp_alg_region *alg_region;
1574         const struct wm_adsp_region *mem;
1575         unsigned int pos, len;
1576         size_t n_algs;
1577         int i, ret;
1578
1579         mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
1580         if (WARN_ON(!mem))
1581                 return -EINVAL;
1582
1583         ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
1584                               sizeof(adsp1_id));
1585         if (ret != 0) {
1586                 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1587                          ret);
1588                 return ret;
1589         }
1590
1591         n_algs = be32_to_cpu(adsp1_id.n_algs);
1592         dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
1593         adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1594                   dsp->fw_id,
1595                   (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
1596                   (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
1597                   be32_to_cpu(adsp1_id.fw.ver) & 0xff,
1598                   n_algs);
1599
1600         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1601                                            adsp1_id.fw.id, adsp1_id.zm);
1602         if (IS_ERR(alg_region))
1603                 return PTR_ERR(alg_region);
1604
1605         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1606                                            adsp1_id.fw.id, adsp1_id.dm);
1607         if (IS_ERR(alg_region))
1608                 return PTR_ERR(alg_region);
1609
1610         pos = sizeof(adsp1_id) / 2;
1611         len = (sizeof(*adsp1_alg) * n_algs) / 2;
1612
1613         adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1614         if (IS_ERR(adsp1_alg))
1615                 return PTR_ERR(adsp1_alg);
1616
1617         for (i = 0; i < n_algs; i++) {
1618                 adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
1619                           i, be32_to_cpu(adsp1_alg[i].alg.id),
1620                           (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
1621                           (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
1622                           be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
1623                           be32_to_cpu(adsp1_alg[i].dm),
1624                           be32_to_cpu(adsp1_alg[i].zm));
1625
1626                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1627                                                    adsp1_alg[i].alg.id,
1628                                                    adsp1_alg[i].dm);
1629                 if (IS_ERR(alg_region)) {
1630                         ret = PTR_ERR(alg_region);
1631                         goto out;
1632                 }
1633                 if (dsp->fw_ver == 0) {
1634                         if (i + 1 < n_algs) {
1635                                 len = be32_to_cpu(adsp1_alg[i + 1].dm);
1636                                 len -= be32_to_cpu(adsp1_alg[i].dm);
1637                                 len *= 4;
1638                                 wm_adsp_create_control(dsp, alg_region, 0,
1639                                                        len, NULL, 0, 0);
1640                         } else {
1641                                 adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
1642                                           be32_to_cpu(adsp1_alg[i].alg.id));
1643                         }
1644                 }
1645
1646                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1647                                                    adsp1_alg[i].alg.id,
1648                                                    adsp1_alg[i].zm);
1649                 if (IS_ERR(alg_region)) {
1650                         ret = PTR_ERR(alg_region);
1651                         goto out;
1652                 }
1653                 if (dsp->fw_ver == 0) {
1654                         if (i + 1 < n_algs) {
1655                                 len = be32_to_cpu(adsp1_alg[i + 1].zm);
1656                                 len -= be32_to_cpu(adsp1_alg[i].zm);
1657                                 len *= 4;
1658                                 wm_adsp_create_control(dsp, alg_region, 0,
1659                                                        len, NULL, 0, 0);
1660                         } else {
1661                                 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1662                                           be32_to_cpu(adsp1_alg[i].alg.id));
1663                         }
1664                 }
1665         }
1666
1667 out:
1668         kfree(adsp1_alg);
1669         return ret;
1670 }
1671
1672 static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
1673 {
1674         struct wmfw_adsp2_id_hdr adsp2_id;
1675         struct wmfw_adsp2_alg_hdr *adsp2_alg;
1676         struct wm_adsp_alg_region *alg_region;
1677         const struct wm_adsp_region *mem;
1678         unsigned int pos, len;
1679         size_t n_algs;
1680         int i, ret;
1681
1682         mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
1683         if (WARN_ON(!mem))
1684                 return -EINVAL;
1685
1686         ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
1687                               sizeof(adsp2_id));
1688         if (ret != 0) {
1689                 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1690                          ret);
1691                 return ret;
1692         }
1693
1694         n_algs = be32_to_cpu(adsp2_id.n_algs);
1695         dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
1696         dsp->fw_id_version = be32_to_cpu(adsp2_id.fw.ver);
1697         adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1698                   dsp->fw_id,
1699                   (dsp->fw_id_version & 0xff0000) >> 16,
1700                   (dsp->fw_id_version & 0xff00) >> 8,
1701                   dsp->fw_id_version & 0xff,
1702                   n_algs);
1703
1704         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1705                                            adsp2_id.fw.id, adsp2_id.xm);
1706         if (IS_ERR(alg_region))
1707                 return PTR_ERR(alg_region);
1708
1709         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1710                                            adsp2_id.fw.id, adsp2_id.ym);
1711         if (IS_ERR(alg_region))
1712                 return PTR_ERR(alg_region);
1713
1714         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1715                                            adsp2_id.fw.id, adsp2_id.zm);
1716         if (IS_ERR(alg_region))
1717                 return PTR_ERR(alg_region);
1718
1719         pos = sizeof(adsp2_id) / 2;
1720         len = (sizeof(*adsp2_alg) * n_algs) / 2;
1721
1722         adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1723         if (IS_ERR(adsp2_alg))
1724                 return PTR_ERR(adsp2_alg);
1725
1726         for (i = 0; i < n_algs; i++) {
1727                 adsp_info(dsp,
1728                           "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
1729                           i, be32_to_cpu(adsp2_alg[i].alg.id),
1730                           (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
1731                           (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
1732                           be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
1733                           be32_to_cpu(adsp2_alg[i].xm),
1734                           be32_to_cpu(adsp2_alg[i].ym),
1735                           be32_to_cpu(adsp2_alg[i].zm));
1736
1737                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1738                                                    adsp2_alg[i].alg.id,
1739                                                    adsp2_alg[i].xm);
1740                 if (IS_ERR(alg_region)) {
1741                         ret = PTR_ERR(alg_region);
1742                         goto out;
1743                 }
1744                 if (dsp->fw_ver == 0) {
1745                         if (i + 1 < n_algs) {
1746                                 len = be32_to_cpu(adsp2_alg[i + 1].xm);
1747                                 len -= be32_to_cpu(adsp2_alg[i].xm);
1748                                 len *= 4;
1749                                 wm_adsp_create_control(dsp, alg_region, 0,
1750                                                        len, NULL, 0, 0);
1751                         } else {
1752                                 adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
1753                                           be32_to_cpu(adsp2_alg[i].alg.id));
1754                         }
1755                 }
1756
1757                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1758                                                    adsp2_alg[i].alg.id,
1759                                                    adsp2_alg[i].ym);
1760                 if (IS_ERR(alg_region)) {
1761                         ret = PTR_ERR(alg_region);
1762                         goto out;
1763                 }
1764                 if (dsp->fw_ver == 0) {
1765                         if (i + 1 < n_algs) {
1766                                 len = be32_to_cpu(adsp2_alg[i + 1].ym);
1767                                 len -= be32_to_cpu(adsp2_alg[i].ym);
1768                                 len *= 4;
1769                                 wm_adsp_create_control(dsp, alg_region, 0,
1770                                                        len, NULL, 0, 0);
1771                         } else {
1772                                 adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
1773                                           be32_to_cpu(adsp2_alg[i].alg.id));
1774                         }
1775                 }
1776
1777                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1778                                                    adsp2_alg[i].alg.id,
1779                                                    adsp2_alg[i].zm);
1780                 if (IS_ERR(alg_region)) {
1781                         ret = PTR_ERR(alg_region);
1782                         goto out;
1783                 }
1784                 if (dsp->fw_ver == 0) {
1785                         if (i + 1 < n_algs) {
1786                                 len = be32_to_cpu(adsp2_alg[i + 1].zm);
1787                                 len -= be32_to_cpu(adsp2_alg[i].zm);
1788                                 len *= 4;
1789                                 wm_adsp_create_control(dsp, alg_region, 0,
1790                                                        len, NULL, 0, 0);
1791                         } else {
1792                                 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1793                                           be32_to_cpu(adsp2_alg[i].alg.id));
1794                         }
1795                 }
1796         }
1797
1798 out:
1799         kfree(adsp2_alg);
1800         return ret;
1801 }
1802
1803 static int wm_adsp_load_coeff(struct wm_adsp *dsp)
1804 {
1805         LIST_HEAD(buf_list);
1806         struct regmap *regmap = dsp->regmap;
1807         struct wmfw_coeff_hdr *hdr;
1808         struct wmfw_coeff_item *blk;
1809         const struct firmware *firmware;
1810         const struct wm_adsp_region *mem;
1811         struct wm_adsp_alg_region *alg_region;
1812         const char *region_name;
1813         int ret, pos, blocks, type, offset, reg;
1814         char *file;
1815         struct wm_adsp_buf *buf;
1816
1817         file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1818         if (file == NULL)
1819                 return -ENOMEM;
1820
1821         snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
1822                  wm_adsp_fw[dsp->fw].file);
1823         file[PAGE_SIZE - 1] = '\0';
1824
1825         ret = request_firmware(&firmware, file, dsp->dev);
1826         if (ret != 0) {
1827                 adsp_warn(dsp, "Failed to request '%s'\n", file);
1828                 ret = 0;
1829                 goto out;
1830         }
1831         ret = -EINVAL;
1832
1833         if (sizeof(*hdr) >= firmware->size) {
1834                 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1835                         file, firmware->size);
1836                 goto out_fw;
1837         }
1838
1839         hdr = (void *)&firmware->data[0];
1840         if (memcmp(hdr->magic, "WMDR", 4) != 0) {
1841                 adsp_err(dsp, "%s: invalid magic\n", file);
1842                 goto out_fw;
1843         }
1844
1845         switch (be32_to_cpu(hdr->rev) & 0xff) {
1846         case 1:
1847                 break;
1848         default:
1849                 adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
1850                          file, be32_to_cpu(hdr->rev) & 0xff);
1851                 ret = -EINVAL;
1852                 goto out_fw;
1853         }
1854
1855         adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
1856                 (le32_to_cpu(hdr->ver) >> 16) & 0xff,
1857                 (le32_to_cpu(hdr->ver) >>  8) & 0xff,
1858                 le32_to_cpu(hdr->ver) & 0xff);
1859
1860         pos = le32_to_cpu(hdr->len);
1861
1862         blocks = 0;
1863         while (pos < firmware->size &&
1864                pos - firmware->size > sizeof(*blk)) {
1865                 blk = (void *)(&firmware->data[pos]);
1866
1867                 type = le16_to_cpu(blk->type);
1868                 offset = le16_to_cpu(blk->offset);
1869
1870                 adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
1871                          file, blocks, le32_to_cpu(blk->id),
1872                          (le32_to_cpu(blk->ver) >> 16) & 0xff,
1873                          (le32_to_cpu(blk->ver) >>  8) & 0xff,
1874                          le32_to_cpu(blk->ver) & 0xff);
1875                 adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
1876                          file, blocks, le32_to_cpu(blk->len), offset, type);
1877
1878                 reg = 0;
1879                 region_name = "Unknown";
1880                 switch (type) {
1881                 case (WMFW_NAME_TEXT << 8):
1882                 case (WMFW_INFO_TEXT << 8):
1883                         break;
1884                 case (WMFW_ABSOLUTE << 8):
1885                         /*
1886                          * Old files may use this for global
1887                          * coefficients.
1888                          */
1889                         if (le32_to_cpu(blk->id) == dsp->fw_id &&
1890                             offset == 0) {
1891                                 region_name = "global coefficients";
1892                                 mem = wm_adsp_find_region(dsp, type);
1893                                 if (!mem) {
1894                                         adsp_err(dsp, "No ZM\n");
1895                                         break;
1896                                 }
1897                                 reg = wm_adsp_region_to_reg(mem, 0);
1898
1899                         } else {
1900                                 region_name = "register";
1901                                 reg = offset;
1902                         }
1903                         break;
1904
1905                 case WMFW_ADSP1_DM:
1906                 case WMFW_ADSP1_ZM:
1907                 case WMFW_ADSP2_XM:
1908                 case WMFW_ADSP2_YM:
1909                         adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
1910                                  file, blocks, le32_to_cpu(blk->len),
1911                                  type, le32_to_cpu(blk->id));
1912
1913                         mem = wm_adsp_find_region(dsp, type);
1914                         if (!mem) {
1915                                 adsp_err(dsp, "No base for region %x\n", type);
1916                                 break;
1917                         }
1918
1919                         alg_region = wm_adsp_find_alg_region(dsp, type,
1920                                                 le32_to_cpu(blk->id));
1921                         if (alg_region) {
1922                                 reg = alg_region->base;
1923                                 reg = wm_adsp_region_to_reg(mem, reg);
1924                                 reg += offset;
1925                         } else {
1926                                 adsp_err(dsp, "No %x for algorithm %x\n",
1927                                          type, le32_to_cpu(blk->id));
1928                         }
1929                         break;
1930
1931                 default:
1932                         adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
1933                                  file, blocks, type, pos);
1934                         break;
1935                 }
1936
1937                 if (reg) {
1938                         buf = wm_adsp_buf_alloc(blk->data,
1939                                                 le32_to_cpu(blk->len),
1940                                                 &buf_list);
1941                         if (!buf) {
1942                                 adsp_err(dsp, "Out of memory\n");
1943                                 ret = -ENOMEM;
1944                                 goto out_fw;
1945                         }
1946
1947                         adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
1948                                  file, blocks, le32_to_cpu(blk->len),
1949                                  reg);
1950                         ret = regmap_raw_write_async(regmap, reg, buf->buf,
1951                                                      le32_to_cpu(blk->len));
1952                         if (ret != 0) {
1953                                 adsp_err(dsp,
1954                                         "%s.%d: Failed to write to %x in %s: %d\n",
1955                                         file, blocks, reg, region_name, ret);
1956                         }
1957                 }
1958
1959                 pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
1960                 blocks++;
1961         }
1962
1963         ret = regmap_async_complete(regmap);
1964         if (ret != 0)
1965                 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1966
1967         if (pos > firmware->size)
1968                 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1969                           file, blocks, pos - firmware->size);
1970
1971         wm_adsp_debugfs_save_binname(dsp, file);
1972
1973 out_fw:
1974         regmap_async_complete(regmap);
1975         release_firmware(firmware);
1976         wm_adsp_buf_free(&buf_list);
1977 out:
1978         kfree(file);
1979         return ret;
1980 }
1981
1982 int wm_adsp1_init(struct wm_adsp *dsp)
1983 {
1984         INIT_LIST_HEAD(&dsp->alg_regions);
1985
1986         mutex_init(&dsp->pwr_lock);
1987
1988         return 0;
1989 }
1990 EXPORT_SYMBOL_GPL(wm_adsp1_init);
1991
1992 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
1993                    struct snd_kcontrol *kcontrol,
1994                    int event)
1995 {
1996         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
1997         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
1998         struct wm_adsp *dsp = &dsps[w->shift];
1999         struct wm_adsp_alg_region *alg_region;
2000         struct wm_coeff_ctl *ctl;
2001         int ret;
2002         unsigned int val;
2003
2004         dsp->card = codec->component.card;
2005
2006         mutex_lock(&dsp->pwr_lock);
2007
2008         switch (event) {
2009         case SND_SOC_DAPM_POST_PMU:
2010                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2011                                    ADSP1_SYS_ENA, ADSP1_SYS_ENA);
2012
2013                 /*
2014                  * For simplicity set the DSP clock rate to be the
2015                  * SYSCLK rate rather than making it configurable.
2016                  */
2017                 if (dsp->sysclk_reg) {
2018                         ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
2019                         if (ret != 0) {
2020                                 adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
2021                                 ret);
2022                                 goto err_mutex;
2023                         }
2024
2025                         val = (val & dsp->sysclk_mask)
2026                                 >> dsp->sysclk_shift;
2027
2028                         ret = regmap_update_bits(dsp->regmap,
2029                                                  dsp->base + ADSP1_CONTROL_31,
2030                                                  ADSP1_CLK_SEL_MASK, val);
2031                         if (ret != 0) {
2032                                 adsp_err(dsp, "Failed to set clock rate: %d\n",
2033                                          ret);
2034                                 goto err_mutex;
2035                         }
2036                 }
2037
2038                 ret = wm_adsp_load(dsp);
2039                 if (ret != 0)
2040                         goto err_ena;
2041
2042                 ret = wm_adsp1_setup_algs(dsp);
2043                 if (ret != 0)
2044                         goto err_ena;
2045
2046                 ret = wm_adsp_load_coeff(dsp);
2047                 if (ret != 0)
2048                         goto err_ena;
2049
2050                 /* Initialize caches for enabled and unset controls */
2051                 ret = wm_coeff_init_control_caches(dsp);
2052                 if (ret != 0)
2053                         goto err_ena;
2054
2055                 /* Sync set controls */
2056                 ret = wm_coeff_sync_controls(dsp);
2057                 if (ret != 0)
2058                         goto err_ena;
2059
2060                 /* Start the core running */
2061                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2062                                    ADSP1_CORE_ENA | ADSP1_START,
2063                                    ADSP1_CORE_ENA | ADSP1_START);
2064                 break;
2065
2066         case SND_SOC_DAPM_PRE_PMD:
2067                 /* Halt the core */
2068                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2069                                    ADSP1_CORE_ENA | ADSP1_START, 0);
2070
2071                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
2072                                    ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
2073
2074                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2075                                    ADSP1_SYS_ENA, 0);
2076
2077                 list_for_each_entry(ctl, &dsp->ctl_list, list)
2078                         ctl->enabled = 0;
2079
2080                 while (!list_empty(&dsp->alg_regions)) {
2081                         alg_region = list_first_entry(&dsp->alg_regions,
2082                                                       struct wm_adsp_alg_region,
2083                                                       list);
2084                         list_del(&alg_region->list);
2085                         kfree(alg_region);
2086                 }
2087                 break;
2088
2089         default:
2090                 break;
2091         }
2092
2093         mutex_unlock(&dsp->pwr_lock);
2094
2095         return 0;
2096
2097 err_ena:
2098         regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2099                            ADSP1_SYS_ENA, 0);
2100 err_mutex:
2101         mutex_unlock(&dsp->pwr_lock);
2102
2103         return ret;
2104 }
2105 EXPORT_SYMBOL_GPL(wm_adsp1_event);
2106
2107 static int wm_adsp2_ena(struct wm_adsp *dsp)
2108 {
2109         unsigned int val;
2110         int ret, count;
2111
2112         ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
2113                                        ADSP2_SYS_ENA, ADSP2_SYS_ENA);
2114         if (ret != 0)
2115                 return ret;
2116
2117         /* Wait for the RAM to start, should be near instantaneous */
2118         for (count = 0; count < 10; ++count) {
2119                 ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1,
2120                                   &val);
2121                 if (ret != 0)
2122                         return ret;
2123
2124                 if (val & ADSP2_RAM_RDY)
2125                         break;
2126
2127                 msleep(1);
2128         }
2129
2130         if (!(val & ADSP2_RAM_RDY)) {
2131                 adsp_err(dsp, "Failed to start DSP RAM\n");
2132                 return -EBUSY;
2133         }
2134
2135         adsp_dbg(dsp, "RAM ready after %d polls\n", count);
2136
2137         return 0;
2138 }
2139
2140 static void wm_adsp2_boot_work(struct work_struct *work)
2141 {
2142         struct wm_adsp *dsp = container_of(work,
2143                                            struct wm_adsp,
2144                                            boot_work);
2145         int ret;
2146
2147         mutex_lock(&dsp->pwr_lock);
2148
2149         ret = wm_adsp2_ena(dsp);
2150         if (ret != 0)
2151                 goto err_mutex;
2152
2153         ret = wm_adsp_load(dsp);
2154         if (ret != 0)
2155                 goto err_ena;
2156
2157         ret = wm_adsp2_setup_algs(dsp);
2158         if (ret != 0)
2159                 goto err_ena;
2160
2161         ret = wm_adsp_load_coeff(dsp);
2162         if (ret != 0)
2163                 goto err_ena;
2164
2165         /* Initialize caches for enabled and unset controls */
2166         ret = wm_coeff_init_control_caches(dsp);
2167         if (ret != 0)
2168                 goto err_ena;
2169
2170         /* Sync set controls */
2171         ret = wm_coeff_sync_controls(dsp);
2172         if (ret != 0)
2173                 goto err_ena;
2174
2175         dsp->running = true;
2176
2177         mutex_unlock(&dsp->pwr_lock);
2178
2179         return;
2180
2181 err_ena:
2182         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2183                            ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2184 err_mutex:
2185         mutex_unlock(&dsp->pwr_lock);
2186 }
2187
2188 static void wm_adsp2_set_dspclk(struct wm_adsp *dsp, unsigned int freq)
2189 {
2190         int ret;
2191
2192         ret = regmap_update_bits_async(dsp->regmap,
2193                                        dsp->base + ADSP2_CLOCKING,
2194                                        ADSP2_CLK_SEL_MASK,
2195                                        freq << ADSP2_CLK_SEL_SHIFT);
2196         if (ret != 0)
2197                 adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
2198 }
2199
2200 int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
2201                          struct snd_kcontrol *kcontrol, int event,
2202                          unsigned int freq)
2203 {
2204         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2205         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2206         struct wm_adsp *dsp = &dsps[w->shift];
2207
2208         dsp->card = codec->component.card;
2209
2210         switch (event) {
2211         case SND_SOC_DAPM_PRE_PMU:
2212                 wm_adsp2_set_dspclk(dsp, freq);
2213                 queue_work(system_unbound_wq, &dsp->boot_work);
2214                 break;
2215         default:
2216                 break;
2217         }
2218
2219         return 0;
2220 }
2221 EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
2222
2223 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
2224                    struct snd_kcontrol *kcontrol, int event)
2225 {
2226         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2227         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2228         struct wm_adsp *dsp = &dsps[w->shift];
2229         struct wm_adsp_alg_region *alg_region;
2230         struct wm_coeff_ctl *ctl;
2231         int ret;
2232
2233         switch (event) {
2234         case SND_SOC_DAPM_POST_PMU:
2235                 flush_work(&dsp->boot_work);
2236
2237                 if (!dsp->running)
2238                         return -EIO;
2239
2240                 ret = regmap_update_bits(dsp->regmap,
2241                                          dsp->base + ADSP2_CONTROL,
2242                                          ADSP2_CORE_ENA | ADSP2_START,
2243                                          ADSP2_CORE_ENA | ADSP2_START);
2244                 if (ret != 0)
2245                         goto err;
2246
2247                 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2248                         ret = wm_adsp_buffer_init(dsp);
2249
2250                 break;
2251
2252         case SND_SOC_DAPM_PRE_PMD:
2253                 /* Log firmware state, it can be useful for analysis */
2254                 wm_adsp2_show_fw_status(dsp);
2255
2256                 mutex_lock(&dsp->pwr_lock);
2257
2258                 wm_adsp_debugfs_clear(dsp);
2259
2260                 dsp->fw_id = 0;
2261                 dsp->fw_id_version = 0;
2262                 dsp->running = false;
2263
2264                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2265                                    ADSP2_SYS_ENA | ADSP2_CORE_ENA |
2266                                    ADSP2_START, 0);
2267
2268                 /* Make sure DMAs are quiesced */
2269                 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
2270                 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
2271                 regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
2272
2273                 list_for_each_entry(ctl, &dsp->ctl_list, list)
2274                         ctl->enabled = 0;
2275
2276                 while (!list_empty(&dsp->alg_regions)) {
2277                         alg_region = list_first_entry(&dsp->alg_regions,
2278                                                       struct wm_adsp_alg_region,
2279                                                       list);
2280                         list_del(&alg_region->list);
2281                         kfree(alg_region);
2282                 }
2283
2284                 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2285                         wm_adsp_buffer_free(dsp);
2286
2287                 mutex_unlock(&dsp->pwr_lock);
2288
2289                 adsp_dbg(dsp, "Shutdown complete\n");
2290                 break;
2291
2292         default:
2293                 break;
2294         }
2295
2296         return 0;
2297 err:
2298         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2299                            ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2300         return ret;
2301 }
2302 EXPORT_SYMBOL_GPL(wm_adsp2_event);
2303
2304 int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2305 {
2306         wm_adsp2_init_debugfs(dsp, codec);
2307
2308         return snd_soc_add_codec_controls(codec,
2309                                           &wm_adsp_fw_controls[dsp->num - 1],
2310                                           1);
2311 }
2312 EXPORT_SYMBOL_GPL(wm_adsp2_codec_probe);
2313
2314 int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2315 {
2316         wm_adsp2_cleanup_debugfs(dsp);
2317
2318         return 0;
2319 }
2320 EXPORT_SYMBOL_GPL(wm_adsp2_codec_remove);
2321
2322 int wm_adsp2_init(struct wm_adsp *dsp)
2323 {
2324         int ret;
2325
2326         /*
2327          * Disable the DSP memory by default when in reset for a small
2328          * power saving.
2329          */
2330         ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2331                                  ADSP2_MEM_ENA, 0);
2332         if (ret != 0) {
2333                 adsp_err(dsp, "Failed to clear memory retention: %d\n", ret);
2334                 return ret;
2335         }
2336
2337         INIT_LIST_HEAD(&dsp->alg_regions);
2338         INIT_LIST_HEAD(&dsp->ctl_list);
2339         INIT_WORK(&dsp->boot_work, wm_adsp2_boot_work);
2340
2341         mutex_init(&dsp->pwr_lock);
2342
2343         return 0;
2344 }
2345 EXPORT_SYMBOL_GPL(wm_adsp2_init);
2346
2347 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
2348 {
2349         struct wm_adsp_compr *compr;
2350         int ret = 0;
2351
2352         mutex_lock(&dsp->pwr_lock);
2353
2354         if (wm_adsp_fw[dsp->fw].num_caps == 0) {
2355                 adsp_err(dsp, "Firmware does not support compressed API\n");
2356                 ret = -ENXIO;
2357                 goto out;
2358         }
2359
2360         if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
2361                 adsp_err(dsp, "Firmware does not support stream direction\n");
2362                 ret = -EINVAL;
2363                 goto out;
2364         }
2365
2366         if (dsp->compr) {
2367                 /* It is expect this limitation will be removed in future */
2368                 adsp_err(dsp, "Only a single stream supported per DSP\n");
2369                 ret = -EBUSY;
2370                 goto out;
2371         }
2372
2373         compr = kzalloc(sizeof(*compr), GFP_KERNEL);
2374         if (!compr) {
2375                 ret = -ENOMEM;
2376                 goto out;
2377         }
2378
2379         compr->dsp = dsp;
2380         compr->stream = stream;
2381
2382         dsp->compr = compr;
2383
2384         stream->runtime->private_data = compr;
2385
2386 out:
2387         mutex_unlock(&dsp->pwr_lock);
2388
2389         return ret;
2390 }
2391 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
2392
2393 int wm_adsp_compr_free(struct snd_compr_stream *stream)
2394 {
2395         struct wm_adsp_compr *compr = stream->runtime->private_data;
2396         struct wm_adsp *dsp = compr->dsp;
2397
2398         mutex_lock(&dsp->pwr_lock);
2399
2400         dsp->compr = NULL;
2401
2402         kfree(compr->raw_buf);
2403         kfree(compr);
2404
2405         mutex_unlock(&dsp->pwr_lock);
2406
2407         return 0;
2408 }
2409 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
2410
2411 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
2412                                       struct snd_compr_params *params)
2413 {
2414         struct wm_adsp_compr *compr = stream->runtime->private_data;
2415         struct wm_adsp *dsp = compr->dsp;
2416         const struct wm_adsp_fw_caps *caps;
2417         const struct snd_codec_desc *desc;
2418         int i, j;
2419
2420         if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
2421             params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
2422             params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
2423             params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
2424             params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
2425                 adsp_err(dsp, "Invalid buffer fragsize=%d fragments=%d\n",
2426                          params->buffer.fragment_size,
2427                          params->buffer.fragments);
2428
2429                 return -EINVAL;
2430         }
2431
2432         for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
2433                 caps = &wm_adsp_fw[dsp->fw].caps[i];
2434                 desc = &caps->desc;
2435
2436                 if (caps->id != params->codec.id)
2437                         continue;
2438
2439                 if (stream->direction == SND_COMPRESS_PLAYBACK) {
2440                         if (desc->max_ch < params->codec.ch_out)
2441                                 continue;
2442                 } else {
2443                         if (desc->max_ch < params->codec.ch_in)
2444                                 continue;
2445                 }
2446
2447                 if (!(desc->formats & (1 << params->codec.format)))
2448                         continue;
2449
2450                 for (j = 0; j < desc->num_sample_rates; ++j)
2451                         if (desc->sample_rates[j] == params->codec.sample_rate)
2452                                 return 0;
2453         }
2454
2455         adsp_err(dsp, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
2456                  params->codec.id, params->codec.ch_in, params->codec.ch_out,
2457                  params->codec.sample_rate, params->codec.format);
2458         return -EINVAL;
2459 }
2460
2461 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
2462 {
2463         return compr->size.fragment_size / WM_ADSP_DATA_WORD_SIZE;
2464 }
2465
2466 int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
2467                              struct snd_compr_params *params)
2468 {
2469         struct wm_adsp_compr *compr = stream->runtime->private_data;
2470         unsigned int size;
2471         int ret;
2472
2473         ret = wm_adsp_compr_check_params(stream, params);
2474         if (ret)
2475                 return ret;
2476
2477         compr->size = params->buffer;
2478
2479         adsp_dbg(compr->dsp, "fragment_size=%d fragments=%d\n",
2480                  compr->size.fragment_size, compr->size.fragments);
2481
2482         size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
2483         compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
2484         if (!compr->raw_buf)
2485                 return -ENOMEM;
2486
2487         return 0;
2488 }
2489 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
2490
2491 int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
2492                            struct snd_compr_caps *caps)
2493 {
2494         struct wm_adsp_compr *compr = stream->runtime->private_data;
2495         int fw = compr->dsp->fw;
2496         int i;
2497
2498         if (wm_adsp_fw[fw].caps) {
2499                 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
2500                         caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
2501
2502                 caps->num_codecs = i;
2503                 caps->direction = wm_adsp_fw[fw].compr_direction;
2504
2505                 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
2506                 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
2507                 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
2508                 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
2509         }
2510
2511         return 0;
2512 }
2513 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
2514
2515 static int wm_adsp_read_data_block(struct wm_adsp *dsp, int mem_type,
2516                                    unsigned int mem_addr,
2517                                    unsigned int num_words, u32 *data)
2518 {
2519         struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2520         unsigned int i, reg;
2521         int ret;
2522
2523         if (!mem)
2524                 return -EINVAL;
2525
2526         reg = wm_adsp_region_to_reg(mem, mem_addr);
2527
2528         ret = regmap_raw_read(dsp->regmap, reg, data,
2529                               sizeof(*data) * num_words);
2530         if (ret < 0)
2531                 return ret;
2532
2533         for (i = 0; i < num_words; ++i)
2534                 data[i] = be32_to_cpu(data[i]) & 0x00ffffffu;
2535
2536         return 0;
2537 }
2538
2539 static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
2540                                          unsigned int mem_addr, u32 *data)
2541 {
2542         return wm_adsp_read_data_block(dsp, mem_type, mem_addr, 1, data);
2543 }
2544
2545 static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
2546                                    unsigned int mem_addr, u32 data)
2547 {
2548         struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2549         unsigned int reg;
2550
2551         if (!mem)
2552                 return -EINVAL;
2553
2554         reg = wm_adsp_region_to_reg(mem, mem_addr);
2555
2556         data = cpu_to_be32(data & 0x00ffffffu);
2557
2558         return regmap_raw_write(dsp->regmap, reg, &data, sizeof(data));
2559 }
2560
2561 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
2562                                       unsigned int field_offset, u32 *data)
2563 {
2564         return wm_adsp_read_data_word(buf->dsp, WMFW_ADSP2_XM,
2565                                       buf->host_buf_ptr + field_offset, data);
2566 }
2567
2568 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
2569                                        unsigned int field_offset, u32 data)
2570 {
2571         return wm_adsp_write_data_word(buf->dsp, WMFW_ADSP2_XM,
2572                                        buf->host_buf_ptr + field_offset, data);
2573 }
2574
2575 static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf)
2576 {
2577         struct wm_adsp_alg_region *alg_region;
2578         struct wm_adsp *dsp = buf->dsp;
2579         u32 xmalg, addr, magic;
2580         int i, ret;
2581
2582         alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
2583         xmalg = sizeof(struct wm_adsp_system_config_xm_hdr) / sizeof(__be32);
2584
2585         addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
2586         ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
2587         if (ret < 0)
2588                 return ret;
2589
2590         if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
2591                 return -EINVAL;
2592
2593         addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
2594         for (i = 0; i < 5; ++i) {
2595                 ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
2596                                              &buf->host_buf_ptr);
2597                 if (ret < 0)
2598                         return ret;
2599
2600                 if (buf->host_buf_ptr)
2601                         break;
2602
2603                 usleep_range(1000, 2000);
2604         }
2605
2606         if (!buf->host_buf_ptr)
2607                 return -EIO;
2608
2609         adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);
2610
2611         return 0;
2612 }
2613
2614 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
2615 {
2616         const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
2617         struct wm_adsp_buffer_region *region;
2618         u32 offset = 0;
2619         int i, ret;
2620
2621         for (i = 0; i < caps->num_regions; ++i) {
2622                 region = &buf->regions[i];
2623
2624                 region->offset = offset;
2625                 region->mem_type = caps->region_defs[i].mem_type;
2626
2627                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
2628                                           &region->base_addr);
2629                 if (ret < 0)
2630                         return ret;
2631
2632                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
2633                                           &offset);
2634                 if (ret < 0)
2635                         return ret;
2636
2637                 region->cumulative_size = offset;
2638
2639                 adsp_dbg(buf->dsp,
2640                          "region=%d type=%d base=%04x off=%04x size=%04x\n",
2641                          i, region->mem_type, region->base_addr,
2642                          region->offset, region->cumulative_size);
2643         }
2644
2645         return 0;
2646 }
2647
2648 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
2649 {
2650         struct wm_adsp_compr_buf *buf;
2651         int ret;
2652
2653         buf = kzalloc(sizeof(*buf), GFP_KERNEL);
2654         if (!buf)
2655                 return -ENOMEM;
2656
2657         buf->dsp = dsp;
2658         buf->read_index = -1;
2659         buf->irq_count = 0xFFFFFFFF;
2660
2661         ret = wm_adsp_buffer_locate(buf);
2662         if (ret < 0) {
2663                 adsp_err(dsp, "Failed to acquire host buffer: %d\n", ret);
2664                 goto err_buffer;
2665         }
2666
2667         buf->regions = kcalloc(wm_adsp_fw[dsp->fw].caps->num_regions,
2668                                sizeof(*buf->regions), GFP_KERNEL);
2669         if (!buf->regions) {
2670                 ret = -ENOMEM;
2671                 goto err_buffer;
2672         }
2673
2674         ret = wm_adsp_buffer_populate(buf);
2675         if (ret < 0) {
2676                 adsp_err(dsp, "Failed to populate host buffer: %d\n", ret);
2677                 goto err_regions;
2678         }
2679
2680         dsp->buffer = buf;
2681
2682         return 0;
2683
2684 err_regions:
2685         kfree(buf->regions);
2686 err_buffer:
2687         kfree(buf);
2688         return ret;
2689 }
2690
2691 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
2692 {
2693         if (dsp->buffer) {
2694                 kfree(dsp->buffer->regions);
2695                 kfree(dsp->buffer);
2696
2697                 dsp->buffer = NULL;
2698         }
2699
2700         return 0;
2701 }
2702
2703 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
2704 {
2705         return compr->buf != NULL;
2706 }
2707
2708 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
2709 {
2710         /*
2711          * Note this will be more complex once each DSP can support multiple
2712          * streams
2713          */
2714         if (!compr->dsp->buffer)
2715                 return -EINVAL;
2716
2717         compr->buf = compr->dsp->buffer;
2718
2719         return 0;
2720 }
2721
2722 int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd)
2723 {
2724         struct wm_adsp_compr *compr = stream->runtime->private_data;
2725         struct wm_adsp *dsp = compr->dsp;
2726         int ret = 0;
2727
2728         adsp_dbg(dsp, "Trigger: %d\n", cmd);
2729
2730         mutex_lock(&dsp->pwr_lock);
2731
2732         switch (cmd) {
2733         case SNDRV_PCM_TRIGGER_START:
2734                 if (wm_adsp_compr_attached(compr))
2735                         break;
2736
2737                 ret = wm_adsp_compr_attach(compr);
2738                 if (ret < 0) {
2739                         adsp_err(dsp, "Failed to link buffer and stream: %d\n",
2740                                  ret);
2741                         break;
2742                 }
2743
2744                 /* Trigger the IRQ at one fragment of data */
2745                 ret = wm_adsp_buffer_write(compr->buf,
2746                                            HOST_BUFFER_FIELD(high_water_mark),
2747                                            wm_adsp_compr_frag_words(compr));
2748                 if (ret < 0) {
2749                         adsp_err(dsp, "Failed to set high water mark: %d\n",
2750                                  ret);
2751                         break;
2752                 }
2753                 break;
2754         case SNDRV_PCM_TRIGGER_STOP:
2755                 break;
2756         default:
2757                 ret = -EINVAL;
2758                 break;
2759         }
2760
2761         mutex_unlock(&dsp->pwr_lock);
2762
2763         return ret;
2764 }
2765 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
2766
2767 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
2768 {
2769         int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
2770
2771         return buf->regions[last_region].cumulative_size;
2772 }
2773
2774 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
2775 {
2776         u32 next_read_index, next_write_index;
2777         int write_index, read_index, avail;
2778         int ret;
2779
2780         /* Only sync read index if we haven't already read a valid index */
2781         if (buf->read_index < 0) {
2782                 ret = wm_adsp_buffer_read(buf,
2783                                 HOST_BUFFER_FIELD(next_read_index),
2784                                 &next_read_index);
2785                 if (ret < 0)
2786                         return ret;
2787
2788                 read_index = sign_extend32(next_read_index, 23);
2789
2790                 if (read_index < 0) {
2791                         adsp_dbg(buf->dsp, "Avail check on unstarted stream\n");
2792                         return 0;
2793                 }
2794
2795                 buf->read_index = read_index;
2796         }
2797
2798         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
2799                         &next_write_index);
2800         if (ret < 0)
2801                 return ret;
2802
2803         write_index = sign_extend32(next_write_index, 23);
2804
2805         avail = write_index - buf->read_index;
2806         if (avail < 0)
2807                 avail += wm_adsp_buffer_size(buf);
2808
2809         adsp_dbg(buf->dsp, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
2810                  buf->read_index, write_index, avail);
2811
2812         buf->avail = avail;
2813
2814         return 0;
2815 }
2816
2817 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
2818 {
2819         struct wm_adsp_compr_buf *buf = dsp->buffer;
2820         struct wm_adsp_compr *compr = dsp->compr;
2821         int ret = 0;
2822
2823         mutex_lock(&dsp->pwr_lock);
2824
2825         if (!buf) {
2826                 ret = -ENODEV;
2827                 goto out;
2828         }
2829
2830         adsp_dbg(dsp, "Handling buffer IRQ\n");
2831
2832         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
2833         if (ret < 0) {
2834                 adsp_err(dsp, "Failed to check buffer error: %d\n", ret);
2835                 goto out;
2836         }
2837         if (buf->error != 0) {
2838                 adsp_err(dsp, "Buffer error occurred: %d\n", buf->error);
2839                 ret = -EIO;
2840                 goto out;
2841         }
2842
2843         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
2844                                   &buf->irq_count);
2845         if (ret < 0) {
2846                 adsp_err(dsp, "Failed to get irq_count: %d\n", ret);
2847                 goto out;
2848         }
2849
2850         ret = wm_adsp_buffer_update_avail(buf);
2851         if (ret < 0) {
2852                 adsp_err(dsp, "Error reading avail: %d\n", ret);
2853                 goto out;
2854         }
2855
2856         if (compr->stream)
2857                 snd_compr_fragment_elapsed(compr->stream);
2858
2859 out:
2860         mutex_unlock(&dsp->pwr_lock);
2861
2862         return ret;
2863 }
2864 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
2865
2866 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
2867 {
2868         if (buf->irq_count & 0x01)
2869                 return 0;
2870
2871         adsp_dbg(buf->dsp, "Enable IRQ(0x%x) for next fragment\n",
2872                  buf->irq_count);
2873
2874         buf->irq_count |= 0x01;
2875
2876         return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
2877                                     buf->irq_count);
2878 }
2879
2880 int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
2881                           struct snd_compr_tstamp *tstamp)
2882 {
2883         struct wm_adsp_compr *compr = stream->runtime->private_data;
2884         struct wm_adsp_compr_buf *buf = compr->buf;
2885         struct wm_adsp *dsp = compr->dsp;
2886         int ret = 0;
2887
2888         adsp_dbg(dsp, "Pointer request\n");
2889
2890         mutex_lock(&dsp->pwr_lock);
2891
2892         if (!compr->buf) {
2893                 ret = -ENXIO;
2894                 goto out;
2895         }
2896
2897         if (compr->buf->error) {
2898                 ret = -EIO;
2899                 goto out;
2900         }
2901
2902         if (buf->avail < wm_adsp_compr_frag_words(compr)) {
2903                 ret = wm_adsp_buffer_update_avail(buf);
2904                 if (ret < 0) {
2905                         adsp_err(dsp, "Error reading avail: %d\n", ret);
2906                         goto out;
2907                 }
2908
2909                 /*
2910                  * If we really have less than 1 fragment available tell the
2911                  * DSP to inform us once a whole fragment is available.
2912                  */
2913                 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
2914                         ret = wm_adsp_buffer_reenable_irq(buf);
2915                         if (ret < 0) {
2916                                 adsp_err(dsp,
2917                                          "Failed to re-enable buffer IRQ: %d\n",
2918                                          ret);
2919                                 goto out;
2920                         }
2921                 }
2922         }
2923
2924         tstamp->copied_total = compr->copied_total;
2925         tstamp->copied_total += buf->avail * WM_ADSP_DATA_WORD_SIZE;
2926
2927 out:
2928         mutex_unlock(&dsp->pwr_lock);
2929
2930         return ret;
2931 }
2932 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
2933
2934 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
2935 {
2936         struct wm_adsp_compr_buf *buf = compr->buf;
2937         u8 *pack_in = (u8 *)compr->raw_buf;
2938         u8 *pack_out = (u8 *)compr->raw_buf;
2939         unsigned int adsp_addr;
2940         int mem_type, nwords, max_read;
2941         int i, j, ret;
2942
2943         /* Calculate read parameters */
2944         for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
2945                 if (buf->read_index < buf->regions[i].cumulative_size)
2946                         break;
2947
2948         if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
2949                 return -EINVAL;
2950
2951         mem_type = buf->regions[i].mem_type;
2952         adsp_addr = buf->regions[i].base_addr +
2953                     (buf->read_index - buf->regions[i].offset);
2954
2955         max_read = wm_adsp_compr_frag_words(compr);
2956         nwords = buf->regions[i].cumulative_size - buf->read_index;
2957
2958         if (nwords > target)
2959                 nwords = target;
2960         if (nwords > buf->avail)
2961                 nwords = buf->avail;
2962         if (nwords > max_read)
2963                 nwords = max_read;
2964         if (!nwords)
2965                 return 0;
2966
2967         /* Read data from DSP */
2968         ret = wm_adsp_read_data_block(buf->dsp, mem_type, adsp_addr,
2969                                       nwords, compr->raw_buf);
2970         if (ret < 0)
2971                 return ret;
2972
2973         /* Remove the padding bytes from the data read from the DSP */
2974         for (i = 0; i < nwords; i++) {
2975                 for (j = 0; j < WM_ADSP_DATA_WORD_SIZE; j++)
2976                         *pack_out++ = *pack_in++;
2977
2978                 pack_in += sizeof(*(compr->raw_buf)) - WM_ADSP_DATA_WORD_SIZE;
2979         }
2980
2981         /* update read index to account for words read */
2982         buf->read_index += nwords;
2983         if (buf->read_index == wm_adsp_buffer_size(buf))
2984                 buf->read_index = 0;
2985
2986         ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
2987                                    buf->read_index);
2988         if (ret < 0)
2989                 return ret;
2990
2991         /* update avail to account for words read */
2992         buf->avail -= nwords;
2993
2994         return nwords;
2995 }
2996
2997 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
2998                               char __user *buf, size_t count)
2999 {
3000         struct wm_adsp *dsp = compr->dsp;
3001         int ntotal = 0;
3002         int nwords, nbytes;
3003
3004         adsp_dbg(dsp, "Requested read of %zu bytes\n", count);
3005
3006         if (!compr->buf)
3007                 return -ENXIO;
3008
3009         if (compr->buf->error)
3010                 return -EIO;
3011
3012         count /= WM_ADSP_DATA_WORD_SIZE;
3013
3014         do {
3015                 nwords = wm_adsp_buffer_capture_block(compr, count);
3016                 if (nwords < 0) {
3017                         adsp_err(dsp, "Failed to capture block: %d\n", nwords);
3018                         return nwords;
3019                 }
3020
3021                 nbytes = nwords * WM_ADSP_DATA_WORD_SIZE;
3022
3023                 adsp_dbg(dsp, "Read %d bytes\n", nbytes);
3024
3025                 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
3026                         adsp_err(dsp, "Failed to copy data to user: %d, %d\n",
3027                                  ntotal, nbytes);
3028                         return -EFAULT;
3029                 }
3030
3031                 count -= nwords;
3032                 ntotal += nbytes;
3033         } while (nwords > 0 && count > 0);
3034
3035         compr->copied_total += ntotal;
3036
3037         return ntotal;
3038 }
3039
3040 int wm_adsp_compr_copy(struct snd_compr_stream *stream, char __user *buf,
3041                        size_t count)
3042 {
3043         struct wm_adsp_compr *compr = stream->runtime->private_data;
3044         struct wm_adsp *dsp = compr->dsp;
3045         int ret;
3046
3047         mutex_lock(&dsp->pwr_lock);
3048
3049         if (stream->direction == SND_COMPRESS_CAPTURE)
3050                 ret = wm_adsp_compr_read(compr, buf, count);
3051         else
3052                 ret = -ENOTSUPP;
3053
3054         mutex_unlock(&dsp->pwr_lock);
3055
3056         return ret;
3057 }
3058 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
3059
3060 MODULE_LICENSE("GPL v2");