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 #define ADSP_MAX_STD_CTRL_SIZE               512
 164
 165 struct wm_adsp_buf {
 166         struct list_head list;
 167         void *buf;
 168 };
 169
 170 static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
 171                                              struct list_head *list)
 172 {
 173         struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
 174
 175         if (buf == NULL)
 176                 return NULL;
 177
 178         buf->buf = vmalloc(len);
 179         if (!buf->buf) {
 180                 vfree(buf);
 181                 return NULL;
 182         }
 183         memcpy(buf->buf, src, len);
 184
 185         if (list)
 186                 list_add_tail(&buf->list, list);
 187
 188         return buf;
 189 }
 190
 191 static void wm_adsp_buf_free(struct list_head *list)
 192 {
 193         while (!list_empty(list)) {
 194                 struct wm_adsp_buf *buf = list_first_entry(list,
 195                                                            struct wm_adsp_buf,
 196                                                            list);
 197                 list_del(&buf->list);
 198                 vfree(buf->buf);
 199                 kfree(buf);
 200         }
 201 }
 202
 203 #define WM_ADSP_FW_MBC_VSS  0
 204 #define WM_ADSP_FW_HIFI     1
 205 #define WM_ADSP_FW_TX       2
 206 #define WM_ADSP_FW_TX_SPK   3
 207 #define WM_ADSP_FW_RX       4
 208 #define WM_ADSP_FW_RX_ANC   5
 209 #define WM_ADSP_FW_CTRL     6
 210 #define WM_ADSP_FW_ASR      7
 211 #define WM_ADSP_FW_TRACE    8
 212 #define WM_ADSP_FW_SPK_PROT 9
 213 #define WM_ADSP_FW_MISC     10
 214
 215 #define WM_ADSP_NUM_FW      11
 216
 217 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
 218         [WM_ADSP_FW_MBC_VSS] =  "MBC/VSS",
 219         [WM_ADSP_FW_HIFI] =     "MasterHiFi",
 220         [WM_ADSP_FW_TX] =       "Tx",
 221         [WM_ADSP_FW_TX_SPK] =   "Tx Speaker",
 222         [WM_ADSP_FW_RX] =       "Rx",
 223         [WM_ADSP_FW_RX_ANC] =   "Rx ANC",
 224         [WM_ADSP_FW_CTRL] =     "Voice Ctrl",
 225         [WM_ADSP_FW_ASR] =      "ASR Assist",
 226         [WM_ADSP_FW_TRACE] =    "Dbg Trace",
 227         [WM_ADSP_FW_SPK_PROT] = "Protection",
 228         [WM_ADSP_FW_MISC] =     "Misc",
 229 };
 230
 231 struct wm_adsp_system_config_xm_hdr {
 232         __be32 sys_enable;
 233         __be32 fw_id;
 234         __be32 fw_rev;
 235         __be32 boot_status;
 236         __be32 watchdog;
 237         __be32 dma_buffer_size;
 238         __be32 rdma[6];
 239         __be32 wdma[8];
 240         __be32 build_job_name[3];
 241         __be32 build_job_number;
 242 };
 243
 244 struct wm_adsp_alg_xm_struct {
 245         __be32 magic;
 246         __be32 smoothing;
 247         __be32 threshold;
 248         __be32 host_buf_ptr;
 249         __be32 start_seq;
 250         __be32 high_water_mark;
 251         __be32 low_water_mark;
 252         __be64 smoothed_power;
 253 };
 254
 255 struct wm_adsp_buffer {
 256         __be32 X_buf_base;              /* XM base addr of first X area */
 257         __be32 X_buf_size;              /* Size of 1st X area in words */
 258         __be32 X_buf_base2;             /* XM base addr of 2nd X area */
 259         __be32 X_buf_brk;               /* Total X size in words */
 260         __be32 Y_buf_base;              /* YM base addr of Y area */
 261         __be32 wrap;                    /* Total size X and Y in words */
 262         __be32 high_water_mark;         /* Point at which IRQ is asserted */
 263         __be32 irq_count;               /* bits 1-31 count IRQ assertions */
 264         __be32 irq_ack;                 /* acked IRQ count, bit 0 enables IRQ */
 265         __be32 next_write_index;        /* word index of next write */
 266         __be32 next_read_index;         /* word index of next read */
 267         __be32 error;                   /* error if any */
 268         __be32 oldest_block_index;      /* word index of oldest surviving */
 269         __be32 requested_rewind;        /* how many blocks rewind was done */
 270         __be32 reserved_space;          /* internal */
 271         __be32 min_free;                /* min free space since stream start */
 272         __be32 blocks_written[2];       /* total blocks written (64 bit) */
 273         __be32 words_written[2];        /* total words written (64 bit) */
 274 };
 275
 276 struct wm_adsp_compr;
 277
 278 struct wm_adsp_compr_buf {
 279         struct wm_adsp *dsp;
 280         struct wm_adsp_compr *compr;
 281
 282         struct wm_adsp_buffer_region *regions;
 283         u32 host_buf_ptr;
 284
 285         u32 error;
 286         u32 irq_count;
 287         int read_index;
 288         int avail;
 289 };
 290
 291 struct wm_adsp_compr {
 292         struct wm_adsp *dsp;
 293         struct wm_adsp_compr_buf *buf;
 294
 295         struct snd_compr_stream *stream;
 296         struct snd_compressed_buffer size;
 297
 298         u32 *raw_buf;
 299         unsigned int copied_total;
 300
 301         unsigned int sample_rate;
 302 };
 303
 304 #define WM_ADSP_DATA_WORD_SIZE         3
 305
 306 #define WM_ADSP_MIN_FRAGMENTS          1
 307 #define WM_ADSP_MAX_FRAGMENTS          256
 308 #define WM_ADSP_MIN_FRAGMENT_SIZE      (64 * WM_ADSP_DATA_WORD_SIZE)
 309 #define WM_ADSP_MAX_FRAGMENT_SIZE      (4096 * WM_ADSP_DATA_WORD_SIZE)
 310
 311 #define WM_ADSP_ALG_XM_STRUCT_MAGIC    0x49aec7
 312
 313 #define HOST_BUFFER_FIELD(field) \
 314         (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
 315
 316 #define ALG_XM_FIELD(field) \
 317         (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
 318
 319 static int wm_adsp_buffer_init(struct wm_adsp *dsp);
 320 static int wm_adsp_buffer_free(struct wm_adsp *dsp);
 321
 322 struct wm_adsp_buffer_region {
 323         unsigned int offset;
 324         unsigned int cumulative_size;
 325         unsigned int mem_type;
 326         unsigned int base_addr;
 327 };
 328
 329 struct wm_adsp_buffer_region_def {
 330         unsigned int mem_type;
 331         unsigned int base_offset;
 332         unsigned int size_offset;
 333 };
 334
 335 static const struct wm_adsp_buffer_region_def default_regions[] = {
 336         {
 337                 .mem_type = WMFW_ADSP2_XM,
 338                 .base_offset = HOST_BUFFER_FIELD(X_buf_base),
 339                 .size_offset = HOST_BUFFER_FIELD(X_buf_size),
 340         },
 341         {
 342                 .mem_type = WMFW_ADSP2_XM,
 343                 .base_offset = HOST_BUFFER_FIELD(X_buf_base2),
 344                 .size_offset = HOST_BUFFER_FIELD(X_buf_brk),
 345         },
 346         {
 347                 .mem_type = WMFW_ADSP2_YM,
 348                 .base_offset = HOST_BUFFER_FIELD(Y_buf_base),
 349                 .size_offset = HOST_BUFFER_FIELD(wrap),
 350         },
 351 };
 352
 353 struct wm_adsp_fw_caps {
 354         u32 id;
 355         struct snd_codec_desc desc;
 356         int num_regions;
 357         const struct wm_adsp_buffer_region_def *region_defs;
 358 };
 359
 360 static const struct wm_adsp_fw_caps ctrl_caps[] = {
 361         {
 362                 .id = SND_AUDIOCODEC_BESPOKE,
 363                 .desc = {
 364                         .max_ch = 1,
 365                         .sample_rates = { 16000 },
 366                         .num_sample_rates = 1,
 367                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 368                 },
 369                 .num_regions = ARRAY_SIZE(default_regions),
 370                 .region_defs = default_regions,
 371         },
 372 };
 373
 374 static const struct wm_adsp_fw_caps trace_caps[] = {
 375         {
 376                 .id = SND_AUDIOCODEC_BESPOKE,
 377                 .desc = {
 378                         .max_ch = 8,
 379                         .sample_rates = {
 380                                 4000, 8000, 11025, 12000, 16000, 22050,
 381                                 24000, 32000, 44100, 48000, 64000, 88200,
 382                                 96000, 176400, 192000
 383                         },
 384                         .num_sample_rates = 15,
 385                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 386                 },
 387                 .num_regions = ARRAY_SIZE(default_regions),
 388                 .region_defs = default_regions,
 389         },
 390 };
 391
 392 static const struct {
 393         const char *file;
 394         int compr_direction;
 395         int num_caps;
 396         const struct wm_adsp_fw_caps *caps;
 397         bool voice_trigger;
 398 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
 399         [WM_ADSP_FW_MBC_VSS] =  { .file = "mbc-vss" },
 400         [WM_ADSP_FW_HIFI] =     { .file = "hifi" },
 401         [WM_ADSP_FW_TX] =       { .file = "tx" },
 402         [WM_ADSP_FW_TX_SPK] =   { .file = "tx-spk" },
 403         [WM_ADSP_FW_RX] =       { .file = "rx" },
 404         [WM_ADSP_FW_RX_ANC] =   { .file = "rx-anc" },
 405         [WM_ADSP_FW_CTRL] =     {
 406                 .file = "ctrl",
 407                 .compr_direction = SND_COMPRESS_CAPTURE,
 408                 .num_caps = ARRAY_SIZE(ctrl_caps),
 409                 .caps = ctrl_caps,
 410                 .voice_trigger = true,
 411         },
 412         [WM_ADSP_FW_ASR] =      { .file = "asr" },
 413         [WM_ADSP_FW_TRACE] =    {
 414                 .file = "trace",
 415                 .compr_direction = SND_COMPRESS_CAPTURE,
 416                 .num_caps = ARRAY_SIZE(trace_caps),
 417                 .caps = trace_caps,
 418         },
 419         [WM_ADSP_FW_SPK_PROT] = { .file = "spk-prot" },
 420         [WM_ADSP_FW_MISC] =     { .file = "misc" },
 421 };
 422
 423 struct wm_coeff_ctl_ops {
 424         int (*xget)(struct snd_kcontrol *kcontrol,
 425                     struct snd_ctl_elem_value *ucontrol);
 426         int (*xput)(struct snd_kcontrol *kcontrol,
 427                     struct snd_ctl_elem_value *ucontrol);
 428         int (*xinfo)(struct snd_kcontrol *kcontrol,
 429                      struct snd_ctl_elem_info *uinfo);
 430 };
 431
 432 struct wm_coeff_ctl {
 433         const char *name;
 434         const char *fw_name;
 435         struct wm_adsp_alg_region alg_region;
 436         struct wm_coeff_ctl_ops ops;
 437         struct wm_adsp *dsp;
 438         unsigned int enabled:1;
 439         struct list_head list;
 440         void *cache;
 441         unsigned int offset;
 442         size_t len;
 443         unsigned int set:1;
 444         struct snd_kcontrol *kcontrol;
 445         struct soc_bytes_ext bytes_ext;
 446         unsigned int flags;
 447 };
 448
 449 #ifdef CONFIG_DEBUG_FS
 450 static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
 451 {
 452         char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
 453
 454         kfree(dsp->wmfw_file_name);
 455         dsp->wmfw_file_name = tmp;
 456 }
 457
 458 static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
 459 {
 460         char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
 461
 462         kfree(dsp->bin_file_name);
 463         dsp->bin_file_name = tmp;
 464 }
 465
 466 static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
 467 {
 468         kfree(dsp->wmfw_file_name);
 469         kfree(dsp->bin_file_name);
 470         dsp->wmfw_file_name = NULL;
 471         dsp->bin_file_name = NULL;
 472 }
 473
 474 static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
 475                                          char __user *user_buf,
 476                                          size_t count, loff_t *ppos)
 477 {
 478         struct wm_adsp *dsp = file->private_data;
 479         ssize_t ret;
 480
 481         mutex_lock(&dsp->pwr_lock);
 482
 483         if (!dsp->wmfw_file_name || !dsp->booted)
 484                 ret = 0;
 485         else
 486                 ret = simple_read_from_buffer(user_buf, count, ppos,
 487                                               dsp->wmfw_file_name,
 488                                               strlen(dsp->wmfw_file_name));
 489
 490         mutex_unlock(&dsp->pwr_lock);
 491         return ret;
 492 }
 493
 494 static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
 495                                         char __user *user_buf,
 496                                         size_t count, loff_t *ppos)
 497 {
 498         struct wm_adsp *dsp = file->private_data;
 499         ssize_t ret;
 500
 501         mutex_lock(&dsp->pwr_lock);
 502
 503         if (!dsp->bin_file_name || !dsp->booted)
 504                 ret = 0;
 505         else
 506                 ret = simple_read_from_buffer(user_buf, count, ppos,
 507                                               dsp->bin_file_name,
 508                                               strlen(dsp->bin_file_name));
 509
 510         mutex_unlock(&dsp->pwr_lock);
 511         return ret;
 512 }
 513
 514 static const struct {
 515         const char *name;
 516         const struct file_operations fops;
 517 } wm_adsp_debugfs_fops[] = {
 518         {
 519                 .name = "wmfw_file_name",
 520                 .fops = {
 521                         .open = simple_open,
 522                         .read = wm_adsp_debugfs_wmfw_read,
 523                 },
 524         },
 525         {
 526                 .name = "bin_file_name",
 527                 .fops = {
 528                         .open = simple_open,
 529                         .read = wm_adsp_debugfs_bin_read,
 530                 },
 531         },
 532 };
 533
 534 static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
 535                                   struct snd_soc_codec *codec)
 536 {
 537         struct dentry *root = NULL;
 538         char *root_name;
 539         int i;
 540
 541         if (!codec->component.debugfs_root) {
 542                 adsp_err(dsp, "No codec debugfs root\n");
 543                 goto err;
 544         }
 545
 546         root_name = kmalloc(PAGE_SIZE, GFP_KERNEL);
 547         if (!root_name)
 548                 goto err;
 549
 550         snprintf(root_name, PAGE_SIZE, "dsp%d", dsp->num);
 551         root = debugfs_create_dir(root_name, codec->component.debugfs_root);
 552         kfree(root_name);
 553
 554         if (!root)
 555                 goto err;
 556
 557         if (!debugfs_create_bool("booted", S_IRUGO, root, &dsp->booted))
 558                 goto err;
 559
 560         if (!debugfs_create_bool("running", S_IRUGO, root, &dsp->running))
 561                 goto err;
 562
 563         if (!debugfs_create_x32("fw_id", S_IRUGO, root, &dsp->fw_id))
 564                 goto err;
 565
 566         if (!debugfs_create_x32("fw_version", S_IRUGO, root,
 567                                 &dsp->fw_id_version))
 568                 goto err;
 569
 570         for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i) {
 571                 if (!debugfs_create_file(wm_adsp_debugfs_fops[i].name,
 572                                          S_IRUGO, root, dsp,
 573                                          &wm_adsp_debugfs_fops[i].fops))
 574                         goto err;
 575         }
 576
 577         dsp->debugfs_root = root;
 578         return;
 579
 580 err:
 581         debugfs_remove_recursive(root);
 582         adsp_err(dsp, "Failed to create debugfs\n");
 583 }
 584
 585 static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
 586 {
 587         wm_adsp_debugfs_clear(dsp);
 588         debugfs_remove_recursive(dsp->debugfs_root);
 589 }
 590 #else
 591 static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
 592                                          struct snd_soc_codec *codec)
 593 {
 594 }
 595
 596 static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
 597 {
 598 }
 599
 600 static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
 601                                                  const char *s)
 602 {
 603 }
 604
 605 static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
 606                                                 const char *s)
 607 {
 608 }
 609
 610 static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
 611 {
 612 }
 613 #endif
 614
 615 static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
 616                           struct snd_ctl_elem_value *ucontrol)
 617 {
 618         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 619         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 620         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
 621
 622         ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
 623
 624         return 0;
 625 }
 626
 627 static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
 628                           struct snd_ctl_elem_value *ucontrol)
 629 {
 630         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 631         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 632         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
 633         int ret = 0;
 634
 635         if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
 636                 return 0;
 637
 638         if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
 639                 return -EINVAL;
 640
 641         mutex_lock(&dsp[e->shift_l].pwr_lock);
 642
 643         if (dsp[e->shift_l].booted || dsp[e->shift_l].compr)
 644                 ret = -EBUSY;
 645         else
 646                 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
 647
 648         mutex_unlock(&dsp[e->shift_l].pwr_lock);
 649
 650         return ret;
 651 }
 652
 653 static const struct soc_enum wm_adsp_fw_enum[] = {
 654         SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 655         SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 656         SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 657         SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 658 };
 659
 660 const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
 661         SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
 662                      wm_adsp_fw_get, wm_adsp_fw_put),
 663         SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
 664                      wm_adsp_fw_get, wm_adsp_fw_put),
 665         SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
 666                      wm_adsp_fw_get, wm_adsp_fw_put),
 667         SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
 668                      wm_adsp_fw_get, wm_adsp_fw_put),
 669 };
 670 EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);
 671
 672 static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
 673                                                         int type)
 674 {
 675         int i;
 676
 677         for (i = 0; i < dsp->num_mems; i++)
 678                 if (dsp->mem[i].type == type)
 679                         return &dsp->mem[i];
 680
 681         return NULL;
 682 }
 683
 684 static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
 685                                           unsigned int offset)
 686 {
 687         if (WARN_ON(!mem))
 688                 return offset;
 689         switch (mem->type) {
 690         case WMFW_ADSP1_PM:
 691                 return mem->base + (offset * 3);
 692         case WMFW_ADSP1_DM:
 693                 return mem->base + (offset * 2);
 694         case WMFW_ADSP2_XM:
 695                 return mem->base + (offset * 2);
 696         case WMFW_ADSP2_YM:
 697                 return mem->base + (offset * 2);
 698         case WMFW_ADSP1_ZM:
 699                 return mem->base + (offset * 2);
 700         default:
 701                 WARN(1, "Unknown memory region type");
 702                 return offset;
 703         }
 704 }
 705
 706 static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
 707 {
 708         u16 scratch[4];
 709         int ret;
 710
 711         ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2_SCRATCH0,
 712                                 scratch, sizeof(scratch));
 713         if (ret) {
 714                 adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
 715                 return;
 716         }
 717
 718         adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
 719                  be16_to_cpu(scratch[0]),
 720                  be16_to_cpu(scratch[1]),
 721                  be16_to_cpu(scratch[2]),
 722                  be16_to_cpu(scratch[3]));
 723 }
 724
 725 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
 726 {
 727         return container_of(ext, struct wm_coeff_ctl, bytes_ext);
 728 }
 729
 730 static int wm_coeff_info(struct snd_kcontrol *kctl,
 731                          struct snd_ctl_elem_info *uinfo)
 732 {
 733         struct soc_bytes_ext *bytes_ext =
 734                 (struct soc_bytes_ext *)kctl->private_value;
 735         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 736
 737         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 738         uinfo->count = ctl->len;
 739         return 0;
 740 }
 741
 742 static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
 743                                   const void *buf, size_t len)
 744 {
 745         struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
 746         const struct wm_adsp_region *mem;
 747         struct wm_adsp *dsp = ctl->dsp;
 748         void *scratch;
 749         int ret;
 750         unsigned int reg;
 751
 752         mem = wm_adsp_find_region(dsp, alg_region->type);
 753         if (!mem) {
 754                 adsp_err(dsp, "No base for region %x\n",
 755                          alg_region->type);
 756                 return -EINVAL;
 757         }
 758
 759         reg = ctl->alg_region.base + ctl->offset;
 760         reg = wm_adsp_region_to_reg(mem, reg);
 761
 762         scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
 763         if (!scratch)
 764                 return -ENOMEM;
 765
 766         ret = regmap_raw_write(dsp->regmap, reg, scratch,
 767                                len);
 768         if (ret) {
 769                 adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
 770                          len, reg, ret);
 771                 kfree(scratch);
 772                 return ret;
 773         }
 774         adsp_dbg(dsp, "Wrote %zu bytes to %x\n", len, reg);
 775
 776         kfree(scratch);
 777
 778         return 0;
 779 }
 780
 781 static int wm_coeff_put(struct snd_kcontrol *kctl,
 782                         struct snd_ctl_elem_value *ucontrol)
 783 {
 784         struct soc_bytes_ext *bytes_ext =
 785                 (struct soc_bytes_ext *)kctl->private_value;
 786         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 787         char *p = ucontrol->value.bytes.data;
 788         int ret = 0;
 789
 790         mutex_lock(&ctl->dsp->pwr_lock);
 791
 792         memcpy(ctl->cache, p, ctl->len);
 793
 794         ctl->set = 1;
 795         if (ctl->enabled && ctl->dsp->running)
 796                 ret = wm_coeff_write_control(ctl, p, ctl->len);
 797
 798         mutex_unlock(&ctl->dsp->pwr_lock);
 799
 800         return ret;
 801 }
 802
 803 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
 804                             const unsigned int __user *bytes, unsigned int size)
 805 {
 806         struct soc_bytes_ext *bytes_ext =
 807                 (struct soc_bytes_ext *)kctl->private_value;
 808         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 809         int ret = 0;
 810
 811         mutex_lock(&ctl->dsp->pwr_lock);
 812
 813         if (copy_from_user(ctl->cache, bytes, size)) {
 814                 ret = -EFAULT;
 815         } else {
 816                 ctl->set = 1;
 817                 if (ctl->enabled && ctl->dsp->running)
 818                         ret = wm_coeff_write_control(ctl, ctl->cache, size);
 819         }
 820
 821         mutex_unlock(&ctl->dsp->pwr_lock);
 822
 823         return ret;
 824 }
 825
 826 static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
 827                                  void *buf, size_t len)
 828 {
 829         struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
 830         const struct wm_adsp_region *mem;
 831         struct wm_adsp *dsp = ctl->dsp;
 832         void *scratch;
 833         int ret;
 834         unsigned int reg;
 835
 836         mem = wm_adsp_find_region(dsp, alg_region->type);
 837         if (!mem) {
 838                 adsp_err(dsp, "No base for region %x\n",
 839                          alg_region->type);
 840                 return -EINVAL;
 841         }
 842
 843         reg = ctl->alg_region.base + ctl->offset;
 844         reg = wm_adsp_region_to_reg(mem, reg);
 845
 846         scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
 847         if (!scratch)
 848                 return -ENOMEM;
 849
 850         ret = regmap_raw_read(dsp->regmap, reg, scratch, len);
 851         if (ret) {
 852                 adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
 853                          len, reg, ret);
 854                 kfree(scratch);
 855                 return ret;
 856         }
 857         adsp_dbg(dsp, "Read %zu bytes from %x\n", len, reg);
 858
 859         memcpy(buf, scratch, len);
 860         kfree(scratch);
 861
 862         return 0;
 863 }
 864
 865 static int wm_coeff_get(struct snd_kcontrol *kctl,
 866                         struct snd_ctl_elem_value *ucontrol)
 867 {
 868         struct soc_bytes_ext *bytes_ext =
 869                 (struct soc_bytes_ext *)kctl->private_value;
 870         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 871         char *p = ucontrol->value.bytes.data;
 872         int ret = 0;
 873
 874         mutex_lock(&ctl->dsp->pwr_lock);
 875
 876         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
 877                 if (ctl->enabled && ctl->dsp->running)
 878                         ret = wm_coeff_read_control(ctl, p, ctl->len);
 879                 else
 880                         ret = -EPERM;
 881         } else {
 882                 if (!ctl->flags && ctl->enabled && ctl->dsp->running)
 883                         ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
 884
 885                 memcpy(p, ctl->cache, ctl->len);
 886         }
 887
 888         mutex_unlock(&ctl->dsp->pwr_lock);
 889
 890         return ret;
 891 }
 892
 893 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
 894                             unsigned int __user *bytes, unsigned int size)
 895 {
 896         struct soc_bytes_ext *bytes_ext =
 897                 (struct soc_bytes_ext *)kctl->private_value;
 898         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 899         int ret = 0;
 900
 901         mutex_lock(&ctl->dsp->pwr_lock);
 902
 903         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
 904                 if (ctl->enabled && ctl->dsp->running)
 905                         ret = wm_coeff_read_control(ctl, ctl->cache, size);
 906                 else
 907                         ret = -EPERM;
 908         } else {
 909                 if (!ctl->flags && ctl->enabled && ctl->dsp->running)
 910                         ret = wm_coeff_read_control(ctl, ctl->cache, size);
 911         }
 912
 913         if (!ret && copy_to_user(bytes, ctl->cache, size))
 914                 ret = -EFAULT;
 915
 916         mutex_unlock(&ctl->dsp->pwr_lock);
 917
 918         return ret;
 919 }
 920
 921 struct wmfw_ctl_work {
 922         struct wm_adsp *dsp;
 923         struct wm_coeff_ctl *ctl;
 924         struct work_struct work;
 925 };
 926
 927 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
 928 {
 929         unsigned int out, rd, wr, vol;
 930
 931         if (len > ADSP_MAX_STD_CTRL_SIZE) {
 932                 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 933                 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
 934                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 935
 936                 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
 937         } else {
 938                 rd = SNDRV_CTL_ELEM_ACCESS_READ;
 939                 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
 940                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 941
 942                 out = 0;
 943         }
 944
 945         if (in) {
 946                 if (in & WMFW_CTL_FLAG_READABLE)
 947                         out |= rd;
 948                 if (in & WMFW_CTL_FLAG_WRITEABLE)
 949                         out |= wr;
 950                 if (in & WMFW_CTL_FLAG_VOLATILE)
 951                         out |= vol;
 952         } else {
 953                 out |= rd | wr | vol;
 954         }
 955
 956         return out;
 957 }
 958
 959 static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
 960 {
 961         struct snd_kcontrol_new *kcontrol;
 962         int ret;
 963
 964         if (!ctl || !ctl->name)
 965                 return -EINVAL;
 966
 967         kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
 968         if (!kcontrol)
 969                 return -ENOMEM;
 970         kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 971
 972         kcontrol->name = ctl->name;
 973         kcontrol->info = wm_coeff_info;
 974         kcontrol->get = wm_coeff_get;
 975         kcontrol->put = wm_coeff_put;
 976         kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 977         kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
 978         kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
 979
 980         ctl->bytes_ext.max = ctl->len;
 981         ctl->bytes_ext.get = wm_coeff_tlv_get;
 982         ctl->bytes_ext.put = wm_coeff_tlv_put;
 983
 984         kcontrol->access = wmfw_convert_flags(ctl->flags, ctl->len);
 985
 986         ret = snd_soc_add_card_controls(dsp->card, kcontrol, 1);
 987         if (ret < 0)
 988                 goto err_kcontrol;
 989
 990         kfree(kcontrol);
 991
 992         ctl->kcontrol = snd_soc_card_get_kcontrol(dsp->card, ctl->name);
 993
 994         return 0;
 995
 996 err_kcontrol:
 997         kfree(kcontrol);
 998         return ret;
 999 }
1000
1001 static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
1002 {
1003         struct wm_coeff_ctl *ctl;
1004         int ret;
1005
1006         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1007                 if (!ctl->enabled || ctl->set)
1008                         continue;
1009                 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
1010                         continue;
1011
1012                 ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
1013                 if (ret < 0)
1014                         return ret;
1015         }
1016
1017         return 0;
1018 }
1019
1020 static int wm_coeff_sync_controls(struct wm_adsp *dsp)
1021 {
1022         struct wm_coeff_ctl *ctl;
1023         int ret;
1024
1025         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1026                 if (!ctl->enabled)
1027                         continue;
1028                 if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
1029                         ret = wm_coeff_write_control(ctl, ctl->cache, ctl->len);
1030                         if (ret < 0)
1031                                 return ret;
1032                 }
1033         }
1034
1035         return 0;
1036 }
1037
1038 static void wm_adsp_ctl_work(struct work_struct *work)
1039 {
1040         struct wmfw_ctl_work *ctl_work = container_of(work,
1041                                                       struct wmfw_ctl_work,
1042                                                       work);
1043
1044         wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
1045         kfree(ctl_work);
1046 }
1047
1048 static void wm_adsp_free_ctl_blk(struct wm_coeff_ctl *ctl)
1049 {
1050         kfree(ctl->cache);
1051         kfree(ctl->name);
1052         kfree(ctl);
1053 }
1054
1055 static int wm_adsp_create_control(struct wm_adsp *dsp,
1056                                   const struct wm_adsp_alg_region *alg_region,
1057                                   unsigned int offset, unsigned int len,
1058                                   const char *subname, unsigned int subname_len,
1059                                   unsigned int flags)
1060 {
1061         struct wm_coeff_ctl *ctl;
1062         struct wmfw_ctl_work *ctl_work;
1063         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1064         char *region_name;
1065         int ret;
1066
1067         if (flags & WMFW_CTL_FLAG_SYS)
1068                 return 0;
1069
1070         switch (alg_region->type) {
1071         case WMFW_ADSP1_PM:
1072                 region_name = "PM";
1073                 break;
1074         case WMFW_ADSP1_DM:
1075                 region_name = "DM";
1076                 break;
1077         case WMFW_ADSP2_XM:
1078                 region_name = "XM";
1079                 break;
1080         case WMFW_ADSP2_YM:
1081                 region_name = "YM";
1082                 break;
1083         case WMFW_ADSP1_ZM:
1084                 region_name = "ZM";
1085                 break;
1086         default:
1087                 adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
1088                 return -EINVAL;
1089         }
1090
1091         switch (dsp->fw_ver) {
1092         case 0:
1093         case 1:
1094                 snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
1095                          dsp->num, region_name, alg_region->alg);
1096                 break;
1097         default:
1098                 ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
1099                                 "DSP%d%c %.12s %x", dsp->num, *region_name,
1100                                 wm_adsp_fw_text[dsp->fw], alg_region->alg);
1101
1102                 /* Truncate the subname from the start if it is too long */
1103                 if (subname) {
1104                         int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
1105                         int skip = 0;
1106
1107                         if (subname_len > avail)
1108                                 skip = subname_len - avail;
1109
1110                         snprintf(name + ret,
1111                                  SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, " %.*s",
1112                                  subname_len - skip, subname + skip);
1113                 }
1114                 break;
1115         }
1116
1117         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1118                 if (!strcmp(ctl->name, name)) {
1119                         if (!ctl->enabled)
1120                                 ctl->enabled = 1;
1121                         return 0;
1122                 }
1123         }
1124
1125         ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
1126         if (!ctl)
1127                 return -ENOMEM;
1128         ctl->fw_name = wm_adsp_fw_text[dsp->fw];
1129         ctl->alg_region = *alg_region;
1130         ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
1131         if (!ctl->name) {
1132                 ret = -ENOMEM;
1133                 goto err_ctl;
1134         }
1135         ctl->enabled = 1;
1136         ctl->set = 0;
1137         ctl->ops.xget = wm_coeff_get;
1138         ctl->ops.xput = wm_coeff_put;
1139         ctl->dsp = dsp;
1140
1141         ctl->flags = flags;
1142         ctl->offset = offset;
1143         ctl->len = len;
1144         ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
1145         if (!ctl->cache) {
1146                 ret = -ENOMEM;
1147                 goto err_ctl_name;
1148         }
1149
1150         list_add(&ctl->list, &dsp->ctl_list);
1151
1152         ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
1153         if (!ctl_work) {
1154                 ret = -ENOMEM;
1155                 goto err_ctl_cache;
1156         }
1157
1158         ctl_work->dsp = dsp;
1159         ctl_work->ctl = ctl;
1160         INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
1161         schedule_work(&ctl_work->work);
1162
1163         return 0;
1164
1165 err_ctl_cache:
1166         kfree(ctl->cache);
1167 err_ctl_name:
1168         kfree(ctl->name);
1169 err_ctl:
1170         kfree(ctl);
1171
1172         return ret;
1173 }
1174
1175 struct wm_coeff_parsed_alg {
1176         int id;
1177         const u8 *name;
1178         int name_len;
1179         int ncoeff;
1180 };
1181
1182 struct wm_coeff_parsed_coeff {
1183         int offset;
1184         int mem_type;
1185         const u8 *name;
1186         int name_len;
1187         int ctl_type;
1188         int flags;
1189         int len;
1190 };
1191
1192 static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
1193 {
1194         int length;
1195
1196         switch (bytes) {
1197         case 1:
1198                 length = **pos;
1199                 break;
1200         case 2:
1201                 length = le16_to_cpu(*((__le16 *)*pos));
1202                 break;
1203         default:
1204                 return 0;
1205         }
1206
1207         if (str)
1208                 *str = *pos + bytes;
1209
1210         *pos += ((length + bytes) + 3) & ~0x03;
1211
1212         return length;
1213 }
1214
1215 static int wm_coeff_parse_int(int bytes, const u8 **pos)
1216 {
1217         int val = 0;
1218
1219         switch (bytes) {
1220         case 2:
1221                 val = le16_to_cpu(*((__le16 *)*pos));
1222                 break;
1223         case 4:
1224                 val = le32_to_cpu(*((__le32 *)*pos));
1225                 break;
1226         default:
1227                 break;
1228         }
1229
1230         *pos += bytes;
1231
1232         return val;
1233 }
1234
1235 static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
1236                                       struct wm_coeff_parsed_alg *blk)
1237 {
1238         const struct wmfw_adsp_alg_data *raw;
1239
1240         switch (dsp->fw_ver) {
1241         case 0:
1242         case 1:
1243                 raw = (const struct wmfw_adsp_alg_data *)*data;
1244                 *data = raw->data;
1245
1246                 blk->id = le32_to_cpu(raw->id);
1247                 blk->name = raw->name;
1248                 blk->name_len = strlen(raw->name);
1249                 blk->ncoeff = le32_to_cpu(raw->ncoeff);
1250                 break;
1251         default:
1252                 blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
1253                 blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
1254                                                       &blk->name);
1255                 wm_coeff_parse_string(sizeof(u16), data, NULL);
1256                 blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
1257                 break;
1258         }
1259
1260         adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
1261         adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
1262         adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
1263 }
1264
1265 static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
1266                                         struct wm_coeff_parsed_coeff *blk)
1267 {
1268         const struct wmfw_adsp_coeff_data *raw;
1269         const u8 *tmp;
1270         int length;
1271
1272         switch (dsp->fw_ver) {
1273         case 0:
1274         case 1:
1275                 raw = (const struct wmfw_adsp_coeff_data *)*data;
1276                 *data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
1277
1278                 blk->offset = le16_to_cpu(raw->hdr.offset);
1279                 blk->mem_type = le16_to_cpu(raw->hdr.type);
1280                 blk->name = raw->name;
1281                 blk->name_len = strlen(raw->name);
1282                 blk->ctl_type = le16_to_cpu(raw->ctl_type);
1283                 blk->flags = le16_to_cpu(raw->flags);
1284                 blk->len = le32_to_cpu(raw->len);
1285                 break;
1286         default:
1287                 tmp = *data;
1288                 blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
1289                 blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
1290                 length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
1291                 blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
1292                                                       &blk->name);
1293                 wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
1294                 wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
1295                 blk->ctl_type = wm_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
1296                 blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
1297                 blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
1298
1299                 *data = *data + sizeof(raw->hdr) + length;
1300                 break;
1301         }
1302
1303         adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
1304         adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
1305         adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
1306         adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
1307         adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
1308         adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
1309 }
1310
1311 static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
1312                                const struct wmfw_region *region)
1313 {
1314         struct wm_adsp_alg_region alg_region = {};
1315         struct wm_coeff_parsed_alg alg_blk;
1316         struct wm_coeff_parsed_coeff coeff_blk;
1317         const u8 *data = region->data;
1318         int i, ret;
1319
1320         wm_coeff_parse_alg(dsp, &data, &alg_blk);
1321         for (i = 0; i < alg_blk.ncoeff; i++) {
1322                 wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
1323
1324                 switch (coeff_blk.ctl_type) {
1325                 case SNDRV_CTL_ELEM_TYPE_BYTES:
1326                         break;
1327                 default:
1328                         adsp_err(dsp, "Unknown control type: %d\n",
1329                                  coeff_blk.ctl_type);
1330                         return -EINVAL;
1331                 }
1332
1333                 alg_region.type = coeff_blk.mem_type;
1334                 alg_region.alg = alg_blk.id;
1335
1336                 ret = wm_adsp_create_control(dsp, &alg_region,
1337                                              coeff_blk.offset,
1338                                              coeff_blk.len,
1339                                              coeff_blk.name,
1340                                              coeff_blk.name_len,
1341                                              coeff_blk.flags);
1342                 if (ret < 0)
1343                         adsp_err(dsp, "Failed to create control: %.*s, %d\n",
1344                                  coeff_blk.name_len, coeff_blk.name, ret);
1345         }
1346
1347         return 0;
1348 }
1349
1350 static int wm_adsp_load(struct wm_adsp *dsp)
1351 {
1352         LIST_HEAD(buf_list);
1353         const struct firmware *firmware;
1354         struct regmap *regmap = dsp->regmap;
1355         unsigned int pos = 0;
1356         const struct wmfw_header *header;
1357         const struct wmfw_adsp1_sizes *adsp1_sizes;
1358         const struct wmfw_adsp2_sizes *adsp2_sizes;
1359         const struct wmfw_footer *footer;
1360         const struct wmfw_region *region;
1361         const struct wm_adsp_region *mem;
1362         const char *region_name;
1363         char *file, *text;
1364         struct wm_adsp_buf *buf;
1365         unsigned int reg;
1366         int regions = 0;
1367         int ret, offset, type, sizes;
1368
1369         file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1370         if (file == NULL)
1371                 return -ENOMEM;
1372
1373         snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
1374                  wm_adsp_fw[dsp->fw].file);
1375         file[PAGE_SIZE - 1] = '\0';
1376
1377         ret = request_firmware(&firmware, file, dsp->dev);
1378         if (ret != 0) {
1379                 adsp_err(dsp, "Failed to request '%s'\n", file);
1380                 goto out;
1381         }
1382         ret = -EINVAL;
1383
1384         pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1385         if (pos >= firmware->size) {
1386                 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1387                          file, firmware->size);
1388                 goto out_fw;
1389         }
1390
1391         header = (void *)&firmware->data[0];
1392
1393         if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
1394                 adsp_err(dsp, "%s: invalid magic\n", file);
1395                 goto out_fw;
1396         }
1397
1398         switch (header->ver) {
1399         case 0:
1400                 adsp_warn(dsp, "%s: Depreciated file format %d\n",
1401                           file, header->ver);
1402                 break;
1403         case 1:
1404         case 2:
1405                 break;
1406         default:
1407                 adsp_err(dsp, "%s: unknown file format %d\n",
1408                          file, header->ver);
1409                 goto out_fw;
1410         }
1411
1412         adsp_info(dsp, "Firmware version: %d\n", header->ver);
1413         dsp->fw_ver = header->ver;
1414
1415         if (header->core != dsp->type) {
1416                 adsp_err(dsp, "%s: invalid core %d != %d\n",
1417                          file, header->core, dsp->type);
1418                 goto out_fw;
1419         }
1420
1421         switch (dsp->type) {
1422         case WMFW_ADSP1:
1423                 pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1424                 adsp1_sizes = (void *)&(header[1]);
1425                 footer = (void *)&(adsp1_sizes[1]);
1426                 sizes = sizeof(*adsp1_sizes);
1427
1428                 adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
1429                          file, le32_to_cpu(adsp1_sizes->dm),
1430                          le32_to_cpu(adsp1_sizes->pm),
1431                          le32_to_cpu(adsp1_sizes->zm));
1432                 break;
1433
1434         case WMFW_ADSP2:
1435                 pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
1436                 adsp2_sizes = (void *)&(header[1]);
1437                 footer = (void *)&(adsp2_sizes[1]);
1438                 sizes = sizeof(*adsp2_sizes);
1439
1440                 adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
1441                          file, le32_to_cpu(adsp2_sizes->xm),
1442                          le32_to_cpu(adsp2_sizes->ym),
1443                          le32_to_cpu(adsp2_sizes->pm),
1444                          le32_to_cpu(adsp2_sizes->zm));
1445                 break;
1446
1447         default:
1448                 WARN(1, "Unknown DSP type");
1449                 goto out_fw;
1450         }
1451
1452         if (le32_to_cpu(header->len) != sizeof(*header) +
1453             sizes + sizeof(*footer)) {
1454                 adsp_err(dsp, "%s: unexpected header length %d\n",
1455                          file, le32_to_cpu(header->len));
1456                 goto out_fw;
1457         }
1458
1459         adsp_dbg(dsp, "%s: timestamp %llu\n", file,
1460                  le64_to_cpu(footer->timestamp));
1461
1462         while (pos < firmware->size &&
1463                pos - firmware->size > sizeof(*region)) {
1464                 region = (void *)&(firmware->data[pos]);
1465                 region_name = "Unknown";
1466                 reg = 0;
1467                 text = NULL;
1468                 offset = le32_to_cpu(region->offset) & 0xffffff;
1469                 type = be32_to_cpu(region->type) & 0xff;
1470                 mem = wm_adsp_find_region(dsp, type);
1471
1472                 switch (type) {
1473                 case WMFW_NAME_TEXT:
1474                         region_name = "Firmware name";
1475                         text = kzalloc(le32_to_cpu(region->len) + 1,
1476                                        GFP_KERNEL);
1477                         break;
1478                 case WMFW_ALGORITHM_DATA:
1479                         region_name = "Algorithm";
1480                         ret = wm_adsp_parse_coeff(dsp, region);
1481                         if (ret != 0)
1482                                 goto out_fw;
1483                         break;
1484                 case WMFW_INFO_TEXT:
1485                         region_name = "Information";
1486                         text = kzalloc(le32_to_cpu(region->len) + 1,
1487                                        GFP_KERNEL);
1488                         break;
1489                 case WMFW_ABSOLUTE:
1490                         region_name = "Absolute";
1491                         reg = offset;
1492                         break;
1493                 case WMFW_ADSP1_PM:
1494                         region_name = "PM";
1495                         reg = wm_adsp_region_to_reg(mem, offset);
1496                         break;
1497                 case WMFW_ADSP1_DM:
1498                         region_name = "DM";
1499                         reg = wm_adsp_region_to_reg(mem, offset);
1500                         break;
1501                 case WMFW_ADSP2_XM:
1502                         region_name = "XM";
1503                         reg = wm_adsp_region_to_reg(mem, offset);
1504                         break;
1505                 case WMFW_ADSP2_YM:
1506                         region_name = "YM";
1507                         reg = wm_adsp_region_to_reg(mem, offset);
1508                         break;
1509                 case WMFW_ADSP1_ZM:
1510                         region_name = "ZM";
1511                         reg = wm_adsp_region_to_reg(mem, offset);
1512                         break;
1513                 default:
1514                         adsp_warn(dsp,
1515                                   "%s.%d: Unknown region type %x at %d(%x)\n",
1516                                   file, regions, type, pos, pos);
1517                         break;
1518                 }
1519
1520                 adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
1521                          regions, le32_to_cpu(region->len), offset,
1522                          region_name);
1523
1524                 if (text) {
1525                         memcpy(text, region->data, le32_to_cpu(region->len));
1526                         adsp_info(dsp, "%s: %s\n", file, text);
1527                         kfree(text);
1528                 }
1529
1530                 if (reg) {
1531                         buf = wm_adsp_buf_alloc(region->data,
1532                                                 le32_to_cpu(region->len),
1533                                                 &buf_list);
1534                         if (!buf) {
1535                                 adsp_err(dsp, "Out of memory\n");
1536                                 ret = -ENOMEM;
1537                                 goto out_fw;
1538                         }
1539
1540                         ret = regmap_raw_write_async(regmap, reg, buf->buf,
1541                                                      le32_to_cpu(region->len));
1542                         if (ret != 0) {
1543                                 adsp_err(dsp,
1544                                         "%s.%d: Failed to write %d bytes at %d in %s: %d\n",
1545                                         file, regions,
1546                                         le32_to_cpu(region->len), offset,
1547                                         region_name, ret);
1548                                 goto out_fw;
1549                         }
1550                 }
1551
1552                 pos += le32_to_cpu(region->len) + sizeof(*region);
1553                 regions++;
1554         }
1555
1556         ret = regmap_async_complete(regmap);
1557         if (ret != 0) {
1558                 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1559                 goto out_fw;
1560         }
1561
1562         if (pos > firmware->size)
1563                 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1564                           file, regions, pos - firmware->size);
1565
1566         wm_adsp_debugfs_save_wmfwname(dsp, file);
1567
1568 out_fw:
1569         regmap_async_complete(regmap);
1570         wm_adsp_buf_free(&buf_list);
1571         release_firmware(firmware);
1572 out:
1573         kfree(file);
1574
1575         return ret;
1576 }
1577
1578 static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
1579                                   const struct wm_adsp_alg_region *alg_region)
1580 {
1581         struct wm_coeff_ctl *ctl;
1582
1583         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1584                 if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
1585                     alg_region->alg == ctl->alg_region.alg &&
1586                     alg_region->type == ctl->alg_region.type) {
1587                         ctl->alg_region.base = alg_region->base;
1588                 }
1589         }
1590 }
1591
1592 static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
1593                                unsigned int pos, unsigned int len)
1594 {
1595         void *alg;
1596         int ret;
1597         __be32 val;
1598
1599         if (n_algs == 0) {
1600                 adsp_err(dsp, "No algorithms\n");
1601                 return ERR_PTR(-EINVAL);
1602         }
1603
1604         if (n_algs > 1024) {
1605                 adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
1606                 return ERR_PTR(-EINVAL);
1607         }
1608
1609         /* Read the terminator first to validate the length */
1610         ret = regmap_raw_read(dsp->regmap, pos + len, &val, sizeof(val));
1611         if (ret != 0) {
1612                 adsp_err(dsp, "Failed to read algorithm list end: %d\n",
1613                         ret);
1614                 return ERR_PTR(ret);
1615         }
1616
1617         if (be32_to_cpu(val) != 0xbedead)
1618                 adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
1619                           pos + len, be32_to_cpu(val));
1620
1621         alg = kzalloc(len * 2, GFP_KERNEL | GFP_DMA);
1622         if (!alg)
1623                 return ERR_PTR(-ENOMEM);
1624
1625         ret = regmap_raw_read(dsp->regmap, pos, alg, len * 2);
1626         if (ret != 0) {
1627                 adsp_err(dsp, "Failed to read algorithm list: %d\n", ret);
1628                 kfree(alg);
1629                 return ERR_PTR(ret);
1630         }
1631
1632         return alg;
1633 }
1634
1635 static struct wm_adsp_alg_region *
1636         wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
1637 {
1638         struct wm_adsp_alg_region *alg_region;
1639
1640         list_for_each_entry(alg_region, &dsp->alg_regions, list) {
1641                 if (id == alg_region->alg && type == alg_region->type)
1642                         return alg_region;
1643         }
1644
1645         return NULL;
1646 }
1647
1648 static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
1649                                                         int type, __be32 id,
1650                                                         __be32 base)
1651 {
1652         struct wm_adsp_alg_region *alg_region;
1653
1654         alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
1655         if (!alg_region)
1656                 return ERR_PTR(-ENOMEM);
1657
1658         alg_region->type = type;
1659         alg_region->alg = be32_to_cpu(id);
1660         alg_region->base = be32_to_cpu(base);
1661
1662         list_add_tail(&alg_region->list, &dsp->alg_regions);
1663
1664         if (dsp->fw_ver > 0)
1665                 wm_adsp_ctl_fixup_base(dsp, alg_region);
1666
1667         return alg_region;
1668 }
1669
1670 static void wm_adsp_free_alg_regions(struct wm_adsp *dsp)
1671 {
1672         struct wm_adsp_alg_region *alg_region;
1673
1674         while (!list_empty(&dsp->alg_regions)) {
1675                 alg_region = list_first_entry(&dsp->alg_regions,
1676                                               struct wm_adsp_alg_region,
1677                                               list);
1678                 list_del(&alg_region->list);
1679                 kfree(alg_region);
1680         }
1681 }
1682
1683 static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
1684 {
1685         struct wmfw_adsp1_id_hdr adsp1_id;
1686         struct wmfw_adsp1_alg_hdr *adsp1_alg;
1687         struct wm_adsp_alg_region *alg_region;
1688         const struct wm_adsp_region *mem;
1689         unsigned int pos, len;
1690         size_t n_algs;
1691         int i, ret;
1692
1693         mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
1694         if (WARN_ON(!mem))
1695                 return -EINVAL;
1696
1697         ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
1698                               sizeof(adsp1_id));
1699         if (ret != 0) {
1700                 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1701                          ret);
1702                 return ret;
1703         }
1704
1705         n_algs = be32_to_cpu(adsp1_id.n_algs);
1706         dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
1707         adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1708                   dsp->fw_id,
1709                   (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
1710                   (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
1711                   be32_to_cpu(adsp1_id.fw.ver) & 0xff,
1712                   n_algs);
1713
1714         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1715                                            adsp1_id.fw.id, adsp1_id.zm);
1716         if (IS_ERR(alg_region))
1717                 return PTR_ERR(alg_region);
1718
1719         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1720                                            adsp1_id.fw.id, adsp1_id.dm);
1721         if (IS_ERR(alg_region))
1722                 return PTR_ERR(alg_region);
1723
1724         pos = sizeof(adsp1_id) / 2;
1725         len = (sizeof(*adsp1_alg) * n_algs) / 2;
1726
1727         adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1728         if (IS_ERR(adsp1_alg))
1729                 return PTR_ERR(adsp1_alg);
1730
1731         for (i = 0; i < n_algs; i++) {
1732                 adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
1733                           i, be32_to_cpu(adsp1_alg[i].alg.id),
1734                           (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
1735                           (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
1736                           be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
1737                           be32_to_cpu(adsp1_alg[i].dm),
1738                           be32_to_cpu(adsp1_alg[i].zm));
1739
1740                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1741                                                    adsp1_alg[i].alg.id,
1742                                                    adsp1_alg[i].dm);
1743                 if (IS_ERR(alg_region)) {
1744                         ret = PTR_ERR(alg_region);
1745                         goto out;
1746                 }
1747                 if (dsp->fw_ver == 0) {
1748                         if (i + 1 < n_algs) {
1749                                 len = be32_to_cpu(adsp1_alg[i + 1].dm);
1750                                 len -= be32_to_cpu(adsp1_alg[i].dm);
1751                                 len *= 4;
1752                                 wm_adsp_create_control(dsp, alg_region, 0,
1753                                                        len, NULL, 0, 0);
1754                         } else {
1755                                 adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
1756                                           be32_to_cpu(adsp1_alg[i].alg.id));
1757                         }
1758                 }
1759
1760                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1761                                                    adsp1_alg[i].alg.id,
1762                                                    adsp1_alg[i].zm);
1763                 if (IS_ERR(alg_region)) {
1764                         ret = PTR_ERR(alg_region);
1765                         goto out;
1766                 }
1767                 if (dsp->fw_ver == 0) {
1768                         if (i + 1 < n_algs) {
1769                                 len = be32_to_cpu(adsp1_alg[i + 1].zm);
1770                                 len -= be32_to_cpu(adsp1_alg[i].zm);
1771                                 len *= 4;
1772                                 wm_adsp_create_control(dsp, alg_region, 0,
1773                                                        len, NULL, 0, 0);
1774                         } else {
1775                                 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1776                                           be32_to_cpu(adsp1_alg[i].alg.id));
1777                         }
1778                 }
1779         }
1780
1781 out:
1782         kfree(adsp1_alg);
1783         return ret;
1784 }
1785
1786 static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
1787 {
1788         struct wmfw_adsp2_id_hdr adsp2_id;
1789         struct wmfw_adsp2_alg_hdr *adsp2_alg;
1790         struct wm_adsp_alg_region *alg_region;
1791         const struct wm_adsp_region *mem;
1792         unsigned int pos, len;
1793         size_t n_algs;
1794         int i, ret;
1795
1796         mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
1797         if (WARN_ON(!mem))
1798                 return -EINVAL;
1799
1800         ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
1801                               sizeof(adsp2_id));
1802         if (ret != 0) {
1803                 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1804                          ret);
1805                 return ret;
1806         }
1807
1808         n_algs = be32_to_cpu(adsp2_id.n_algs);
1809         dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
1810         dsp->fw_id_version = be32_to_cpu(adsp2_id.fw.ver);
1811         adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1812                   dsp->fw_id,
1813                   (dsp->fw_id_version & 0xff0000) >> 16,
1814                   (dsp->fw_id_version & 0xff00) >> 8,
1815                   dsp->fw_id_version & 0xff,
1816                   n_algs);
1817
1818         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1819                                            adsp2_id.fw.id, adsp2_id.xm);
1820         if (IS_ERR(alg_region))
1821                 return PTR_ERR(alg_region);
1822
1823         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1824                                            adsp2_id.fw.id, adsp2_id.ym);
1825         if (IS_ERR(alg_region))
1826                 return PTR_ERR(alg_region);
1827
1828         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1829                                            adsp2_id.fw.id, adsp2_id.zm);
1830         if (IS_ERR(alg_region))
1831                 return PTR_ERR(alg_region);
1832
1833         pos = sizeof(adsp2_id) / 2;
1834         len = (sizeof(*adsp2_alg) * n_algs) / 2;
1835
1836         adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1837         if (IS_ERR(adsp2_alg))
1838                 return PTR_ERR(adsp2_alg);
1839
1840         for (i = 0; i < n_algs; i++) {
1841                 adsp_info(dsp,
1842                           "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
1843                           i, be32_to_cpu(adsp2_alg[i].alg.id),
1844                           (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
1845                           (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
1846                           be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
1847                           be32_to_cpu(adsp2_alg[i].xm),
1848                           be32_to_cpu(adsp2_alg[i].ym),
1849                           be32_to_cpu(adsp2_alg[i].zm));
1850
1851                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1852                                                    adsp2_alg[i].alg.id,
1853                                                    adsp2_alg[i].xm);
1854                 if (IS_ERR(alg_region)) {
1855                         ret = PTR_ERR(alg_region);
1856                         goto out;
1857                 }
1858                 if (dsp->fw_ver == 0) {
1859                         if (i + 1 < n_algs) {
1860                                 len = be32_to_cpu(adsp2_alg[i + 1].xm);
1861                                 len -= be32_to_cpu(adsp2_alg[i].xm);
1862                                 len *= 4;
1863                                 wm_adsp_create_control(dsp, alg_region, 0,
1864                                                        len, NULL, 0, 0);
1865                         } else {
1866                                 adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
1867                                           be32_to_cpu(adsp2_alg[i].alg.id));
1868                         }
1869                 }
1870
1871                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1872                                                    adsp2_alg[i].alg.id,
1873                                                    adsp2_alg[i].ym);
1874                 if (IS_ERR(alg_region)) {
1875                         ret = PTR_ERR(alg_region);
1876                         goto out;
1877                 }
1878                 if (dsp->fw_ver == 0) {
1879                         if (i + 1 < n_algs) {
1880                                 len = be32_to_cpu(adsp2_alg[i + 1].ym);
1881                                 len -= be32_to_cpu(adsp2_alg[i].ym);
1882                                 len *= 4;
1883                                 wm_adsp_create_control(dsp, alg_region, 0,
1884                                                        len, NULL, 0, 0);
1885                         } else {
1886                                 adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
1887                                           be32_to_cpu(adsp2_alg[i].alg.id));
1888                         }
1889                 }
1890
1891                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1892                                                    adsp2_alg[i].alg.id,
1893                                                    adsp2_alg[i].zm);
1894                 if (IS_ERR(alg_region)) {
1895                         ret = PTR_ERR(alg_region);
1896                         goto out;
1897                 }
1898                 if (dsp->fw_ver == 0) {
1899                         if (i + 1 < n_algs) {
1900                                 len = be32_to_cpu(adsp2_alg[i + 1].zm);
1901                                 len -= be32_to_cpu(adsp2_alg[i].zm);
1902                                 len *= 4;
1903                                 wm_adsp_create_control(dsp, alg_region, 0,
1904                                                        len, NULL, 0, 0);
1905                         } else {
1906                                 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1907                                           be32_to_cpu(adsp2_alg[i].alg.id));
1908                         }
1909                 }
1910         }
1911
1912 out:
1913         kfree(adsp2_alg);
1914         return ret;
1915 }
1916
1917 static int wm_adsp_load_coeff(struct wm_adsp *dsp)
1918 {
1919         LIST_HEAD(buf_list);
1920         struct regmap *regmap = dsp->regmap;
1921         struct wmfw_coeff_hdr *hdr;
1922         struct wmfw_coeff_item *blk;
1923         const struct firmware *firmware;
1924         const struct wm_adsp_region *mem;
1925         struct wm_adsp_alg_region *alg_region;
1926         const char *region_name;
1927         int ret, pos, blocks, type, offset, reg;
1928         char *file;
1929         struct wm_adsp_buf *buf;
1930
1931         file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1932         if (file == NULL)
1933                 return -ENOMEM;
1934
1935         snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
1936                  wm_adsp_fw[dsp->fw].file);
1937         file[PAGE_SIZE - 1] = '\0';
1938
1939         ret = request_firmware(&firmware, file, dsp->dev);
1940         if (ret != 0) {
1941                 adsp_warn(dsp, "Failed to request '%s'\n", file);
1942                 ret = 0;
1943                 goto out;
1944         }
1945         ret = -EINVAL;
1946
1947         if (sizeof(*hdr) >= firmware->size) {
1948                 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1949                         file, firmware->size);
1950                 goto out_fw;
1951         }
1952
1953         hdr = (void *)&firmware->data[0];
1954         if (memcmp(hdr->magic, "WMDR", 4) != 0) {
1955                 adsp_err(dsp, "%s: invalid magic\n", file);
1956                 goto out_fw;
1957         }
1958
1959         switch (be32_to_cpu(hdr->rev) & 0xff) {
1960         case 1:
1961                 break;
1962         default:
1963                 adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
1964                          file, be32_to_cpu(hdr->rev) & 0xff);
1965                 ret = -EINVAL;
1966                 goto out_fw;
1967         }
1968
1969         adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
1970                 (le32_to_cpu(hdr->ver) >> 16) & 0xff,
1971                 (le32_to_cpu(hdr->ver) >>  8) & 0xff,
1972                 le32_to_cpu(hdr->ver) & 0xff);
1973
1974         pos = le32_to_cpu(hdr->len);
1975
1976         blocks = 0;
1977         while (pos < firmware->size &&
1978                pos - firmware->size > sizeof(*blk)) {
1979                 blk = (void *)(&firmware->data[pos]);
1980
1981                 type = le16_to_cpu(blk->type);
1982                 offset = le16_to_cpu(blk->offset);
1983
1984                 adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
1985                          file, blocks, le32_to_cpu(blk->id),
1986                          (le32_to_cpu(blk->ver) >> 16) & 0xff,
1987                          (le32_to_cpu(blk->ver) >>  8) & 0xff,
1988                          le32_to_cpu(blk->ver) & 0xff);
1989                 adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
1990                          file, blocks, le32_to_cpu(blk->len), offset, type);
1991
1992                 reg = 0;
1993                 region_name = "Unknown";
1994                 switch (type) {
1995                 case (WMFW_NAME_TEXT << 8):
1996                 case (WMFW_INFO_TEXT << 8):
1997                         break;
1998                 case (WMFW_ABSOLUTE << 8):
1999                         /*
2000                          * Old files may use this for global
2001                          * coefficients.
2002                          */
2003                         if (le32_to_cpu(blk->id) == dsp->fw_id &&
2004                             offset == 0) {
2005                                 region_name = "global coefficients";
2006                                 mem = wm_adsp_find_region(dsp, type);
2007                                 if (!mem) {
2008                                         adsp_err(dsp, "No ZM\n");
2009                                         break;
2010                                 }
2011                                 reg = wm_adsp_region_to_reg(mem, 0);
2012
2013                         } else {
2014                                 region_name = "register";
2015                                 reg = offset;
2016                         }
2017                         break;
2018
2019                 case WMFW_ADSP1_DM:
2020                 case WMFW_ADSP1_ZM:
2021                 case WMFW_ADSP2_XM:
2022                 case WMFW_ADSP2_YM:
2023                         adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
2024                                  file, blocks, le32_to_cpu(blk->len),
2025                                  type, le32_to_cpu(blk->id));
2026
2027                         mem = wm_adsp_find_region(dsp, type);
2028                         if (!mem) {
2029                                 adsp_err(dsp, "No base for region %x\n", type);
2030                                 break;
2031                         }
2032
2033                         alg_region = wm_adsp_find_alg_region(dsp, type,
2034                                                 le32_to_cpu(blk->id));
2035                         if (alg_region) {
2036                                 reg = alg_region->base;
2037                                 reg = wm_adsp_region_to_reg(mem, reg);
2038                                 reg += offset;
2039                         } else {
2040                                 adsp_err(dsp, "No %x for algorithm %x\n",
2041                                          type, le32_to_cpu(blk->id));
2042                         }
2043                         break;
2044
2045                 default:
2046                         adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
2047                                  file, blocks, type, pos);
2048                         break;
2049                 }
2050
2051                 if (reg) {
2052                         buf = wm_adsp_buf_alloc(blk->data,
2053                                                 le32_to_cpu(blk->len),
2054                                                 &buf_list);
2055                         if (!buf) {
2056                                 adsp_err(dsp, "Out of memory\n");
2057                                 ret = -ENOMEM;
2058                                 goto out_fw;
2059                         }
2060
2061                         adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
2062                                  file, blocks, le32_to_cpu(blk->len),
2063                                  reg);
2064                         ret = regmap_raw_write_async(regmap, reg, buf->buf,
2065                                                      le32_to_cpu(blk->len));
2066                         if (ret != 0) {
2067                                 adsp_err(dsp,
2068                                         "%s.%d: Failed to write to %x in %s: %d\n",
2069                                         file, blocks, reg, region_name, ret);
2070                         }
2071                 }
2072
2073                 pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
2074                 blocks++;
2075         }
2076
2077         ret = regmap_async_complete(regmap);
2078         if (ret != 0)
2079                 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
2080
2081         if (pos > firmware->size)
2082                 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
2083                           file, blocks, pos - firmware->size);
2084
2085         wm_adsp_debugfs_save_binname(dsp, file);
2086
2087 out_fw:
2088         regmap_async_complete(regmap);
2089         release_firmware(firmware);
2090         wm_adsp_buf_free(&buf_list);
2091 out:
2092         kfree(file);
2093         return ret;
2094 }
2095
2096 int wm_adsp1_init(struct wm_adsp *dsp)
2097 {
2098         INIT_LIST_HEAD(&dsp->alg_regions);
2099
2100         mutex_init(&dsp->pwr_lock);
2101
2102         return 0;
2103 }
2104 EXPORT_SYMBOL_GPL(wm_adsp1_init);
2105
2106 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
2107                    struct snd_kcontrol *kcontrol,
2108                    int event)
2109 {
2110         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2111         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2112         struct wm_adsp *dsp = &dsps[w->shift];
2113         struct wm_coeff_ctl *ctl;
2114         int ret;
2115         unsigned int val;
2116
2117         dsp->card = codec->component.card;
2118
2119         mutex_lock(&dsp->pwr_lock);
2120
2121         switch (event) {
2122         case SND_SOC_DAPM_POST_PMU:
2123                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2124                                    ADSP1_SYS_ENA, ADSP1_SYS_ENA);
2125
2126                 /*
2127                  * For simplicity set the DSP clock rate to be the
2128                  * SYSCLK rate rather than making it configurable.
2129                  */
2130                 if (dsp->sysclk_reg) {
2131                         ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
2132                         if (ret != 0) {
2133                                 adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
2134                                 ret);
2135                                 goto err_mutex;
2136                         }
2137
2138                         val = (val & dsp->sysclk_mask) >> dsp->sysclk_shift;
2139
2140                         ret = regmap_update_bits(dsp->regmap,
2141                                                  dsp->base + ADSP1_CONTROL_31,
2142                                                  ADSP1_CLK_SEL_MASK, val);
2143                         if (ret != 0) {
2144                                 adsp_err(dsp, "Failed to set clock rate: %d\n",
2145                                          ret);
2146                                 goto err_mutex;
2147                         }
2148                 }
2149
2150                 ret = wm_adsp_load(dsp);
2151                 if (ret != 0)
2152                         goto err_ena;
2153
2154                 ret = wm_adsp1_setup_algs(dsp);
2155                 if (ret != 0)
2156                         goto err_ena;
2157
2158                 ret = wm_adsp_load_coeff(dsp);
2159                 if (ret != 0)
2160                         goto err_ena;
2161
2162                 /* Initialize caches for enabled and unset controls */
2163                 ret = wm_coeff_init_control_caches(dsp);
2164                 if (ret != 0)
2165                         goto err_ena;
2166
2167                 /* Sync set controls */
2168                 ret = wm_coeff_sync_controls(dsp);
2169                 if (ret != 0)
2170                         goto err_ena;
2171
2172                 dsp->booted = true;
2173
2174                 /* Start the core running */
2175                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2176                                    ADSP1_CORE_ENA | ADSP1_START,
2177                                    ADSP1_CORE_ENA | ADSP1_START);
2178
2179                 dsp->running = true;
2180                 break;
2181
2182         case SND_SOC_DAPM_PRE_PMD:
2183                 dsp->running = false;
2184                 dsp->booted = false;
2185
2186                 /* Halt the core */
2187                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2188                                    ADSP1_CORE_ENA | ADSP1_START, 0);
2189
2190                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
2191                                    ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
2192
2193                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2194                                    ADSP1_SYS_ENA, 0);
2195
2196                 list_for_each_entry(ctl, &dsp->ctl_list, list)
2197                         ctl->enabled = 0;
2198
2199
2200                 wm_adsp_free_alg_regions(dsp);
2201                 break;
2202
2203         default:
2204                 break;
2205         }
2206
2207         mutex_unlock(&dsp->pwr_lock);
2208
2209         return 0;
2210
2211 err_ena:
2212         regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2213                            ADSP1_SYS_ENA, 0);
2214 err_mutex:
2215         mutex_unlock(&dsp->pwr_lock);
2216
2217         return ret;
2218 }
2219 EXPORT_SYMBOL_GPL(wm_adsp1_event);
2220
2221 static int wm_adsp2_ena(struct wm_adsp *dsp)
2222 {
2223         unsigned int val;
2224         int ret, count;
2225
2226         ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
2227                                        ADSP2_SYS_ENA, ADSP2_SYS_ENA);
2228         if (ret != 0)
2229                 return ret;
2230
2231         /* Wait for the RAM to start, should be near instantaneous */
2232         for (count = 0; count < 10; ++count) {
2233                 ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1, &val);
2234                 if (ret != 0)
2235                         return ret;
2236
2237                 if (val & ADSP2_RAM_RDY)
2238                         break;
2239
2240                 msleep(1);
2241         }
2242
2243         if (!(val & ADSP2_RAM_RDY)) {
2244                 adsp_err(dsp, "Failed to start DSP RAM\n");
2245                 return -EBUSY;
2246         }
2247
2248         adsp_dbg(dsp, "RAM ready after %d polls\n", count);
2249
2250         return 0;
2251 }
2252
2253 static void wm_adsp2_boot_work(struct work_struct *work)
2254 {
2255         struct wm_adsp *dsp = container_of(work,
2256                                            struct wm_adsp,
2257                                            boot_work);
2258         int ret;
2259
2260         mutex_lock(&dsp->pwr_lock);
2261
2262         ret = wm_adsp2_ena(dsp);
2263         if (ret != 0)
2264                 goto err_mutex;
2265
2266         ret = wm_adsp_load(dsp);
2267         if (ret != 0)
2268                 goto err_ena;
2269
2270         ret = wm_adsp2_setup_algs(dsp);
2271         if (ret != 0)
2272                 goto err_ena;
2273
2274         ret = wm_adsp_load_coeff(dsp);
2275         if (ret != 0)
2276                 goto err_ena;
2277
2278         /* Initialize caches for enabled and unset controls */
2279         ret = wm_coeff_init_control_caches(dsp);
2280         if (ret != 0)
2281                 goto err_ena;
2282
2283         dsp->booted = true;
2284
2285         mutex_unlock(&dsp->pwr_lock);
2286
2287         return;
2288
2289 err_ena:
2290         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2291                            ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2292 err_mutex:
2293         mutex_unlock(&dsp->pwr_lock);
2294 }
2295
2296 static void wm_adsp2_set_dspclk(struct wm_adsp *dsp, unsigned int freq)
2297 {
2298         int ret;
2299
2300         ret = regmap_update_bits_async(dsp->regmap,
2301                                        dsp->base + ADSP2_CLOCKING,
2302                                        ADSP2_CLK_SEL_MASK,
2303                                        freq << ADSP2_CLK_SEL_SHIFT);
2304         if (ret != 0)
2305                 adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
2306 }
2307
2308 int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
2309                          struct snd_kcontrol *kcontrol, int event,
2310                          unsigned int freq)
2311 {
2312         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2313         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2314         struct wm_adsp *dsp = &dsps[w->shift];
2315
2316         dsp->card = codec->component.card;
2317
2318         switch (event) {
2319         case SND_SOC_DAPM_PRE_PMU:
2320                 wm_adsp2_set_dspclk(dsp, freq);
2321                 queue_work(system_unbound_wq, &dsp->boot_work);
2322                 break;
2323         default:
2324                 break;
2325         }
2326
2327         return 0;
2328 }
2329 EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
2330
2331 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
2332                    struct snd_kcontrol *kcontrol, int event)
2333 {
2334         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2335         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2336         struct wm_adsp *dsp = &dsps[w->shift];
2337         struct wm_coeff_ctl *ctl;
2338         int ret;
2339
2340         switch (event) {
2341         case SND_SOC_DAPM_POST_PMU:
2342                 flush_work(&dsp->boot_work);
2343
2344                 if (!dsp->booted)
2345                         return -EIO;
2346
2347                 /* Sync set controls */
2348                 ret = wm_coeff_sync_controls(dsp);
2349                 if (ret != 0)
2350                         goto err;
2351
2352                 ret = regmap_update_bits(dsp->regmap,
2353                                          dsp->base + ADSP2_CONTROL,
2354                                          ADSP2_CORE_ENA | ADSP2_START,
2355                                          ADSP2_CORE_ENA | ADSP2_START);
2356                 if (ret != 0)
2357                         goto err;
2358
2359                 dsp->running = true;
2360
2361                 mutex_lock(&dsp->pwr_lock);
2362
2363                 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2364                         ret = wm_adsp_buffer_init(dsp);
2365
2366                 mutex_unlock(&dsp->pwr_lock);
2367
2368                 break;
2369
2370         case SND_SOC_DAPM_PRE_PMD:
2371                 /* Log firmware state, it can be useful for analysis */
2372                 wm_adsp2_show_fw_status(dsp);
2373
2374                 mutex_lock(&dsp->pwr_lock);
2375
2376                 wm_adsp_debugfs_clear(dsp);
2377
2378                 dsp->fw_id = 0;
2379                 dsp->fw_id_version = 0;
2380
2381                 dsp->running = false;
2382                 dsp->booted = false;
2383
2384                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2385                                    ADSP2_CORE_ENA | ADSP2_START, 0);
2386
2387                 /* Make sure DMAs are quiesced */
2388                 regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
2389                 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
2390                 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
2391
2392                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2393                                    ADSP2_SYS_ENA, 0);
2394
2395                 list_for_each_entry(ctl, &dsp->ctl_list, list)
2396                         ctl->enabled = 0;
2397
2398                 wm_adsp_free_alg_regions(dsp);
2399
2400                 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2401                         wm_adsp_buffer_free(dsp);
2402
2403                 mutex_unlock(&dsp->pwr_lock);
2404
2405                 adsp_dbg(dsp, "Shutdown complete\n");
2406                 break;
2407
2408         default:
2409                 break;
2410         }
2411
2412         return 0;
2413 err:
2414         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2415                            ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2416         return ret;
2417 }
2418 EXPORT_SYMBOL_GPL(wm_adsp2_event);
2419
2420 int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2421 {
2422         wm_adsp2_init_debugfs(dsp, codec);
2423
2424         return snd_soc_add_codec_controls(codec,
2425                                           &wm_adsp_fw_controls[dsp->num - 1],
2426                                           1);
2427 }
2428 EXPORT_SYMBOL_GPL(wm_adsp2_codec_probe);
2429
2430 int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2431 {
2432         wm_adsp2_cleanup_debugfs(dsp);
2433
2434         return 0;
2435 }
2436 EXPORT_SYMBOL_GPL(wm_adsp2_codec_remove);
2437
2438 int wm_adsp2_init(struct wm_adsp *dsp)
2439 {
2440         int ret;
2441
2442         /*
2443          * Disable the DSP memory by default when in reset for a small
2444          * power saving.
2445          */
2446         ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2447                                  ADSP2_MEM_ENA, 0);
2448         if (ret != 0) {
2449                 adsp_err(dsp, "Failed to clear memory retention: %d\n", ret);
2450                 return ret;
2451         }
2452
2453         INIT_LIST_HEAD(&dsp->alg_regions);
2454         INIT_LIST_HEAD(&dsp->ctl_list);
2455         INIT_WORK(&dsp->boot_work, wm_adsp2_boot_work);
2456
2457         mutex_init(&dsp->pwr_lock);
2458
2459         return 0;
2460 }
2461 EXPORT_SYMBOL_GPL(wm_adsp2_init);
2462
2463 void wm_adsp2_remove(struct wm_adsp *dsp)
2464 {
2465         struct wm_coeff_ctl *ctl;
2466
2467         while (!list_empty(&dsp->ctl_list)) {
2468                 ctl = list_first_entry(&dsp->ctl_list, struct wm_coeff_ctl,
2469                                         list);
2470                 list_del(&ctl->list);
2471                 wm_adsp_free_ctl_blk(ctl);
2472         }
2473 }
2474 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
2475
2476 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
2477 {
2478         return compr->buf != NULL;
2479 }
2480
2481 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
2482 {
2483         /*
2484          * Note this will be more complex once each DSP can support multiple
2485          * streams
2486          */
2487         if (!compr->dsp->buffer)
2488                 return -EINVAL;
2489
2490         compr->buf = compr->dsp->buffer;
2491         compr->buf->compr = compr;
2492
2493         return 0;
2494 }
2495
2496 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
2497 {
2498         if (!compr)
2499                 return;
2500
2501         /* Wake the poll so it can see buffer is no longer attached */
2502         if (compr->stream)
2503                 snd_compr_fragment_elapsed(compr->stream);
2504
2505         if (wm_adsp_compr_attached(compr)) {
2506                 compr->buf->compr = NULL;
2507                 compr->buf = NULL;
2508         }
2509 }
2510
2511 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
2512 {
2513         struct wm_adsp_compr *compr;
2514         int ret = 0;
2515
2516         mutex_lock(&dsp->pwr_lock);
2517
2518         if (wm_adsp_fw[dsp->fw].num_caps == 0) {
2519                 adsp_err(dsp, "Firmware does not support compressed API\n");
2520                 ret = -ENXIO;
2521                 goto out;
2522         }
2523
2524         if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
2525                 adsp_err(dsp, "Firmware does not support stream direction\n");
2526                 ret = -EINVAL;
2527                 goto out;
2528         }
2529
2530         if (dsp->compr) {
2531                 /* It is expect this limitation will be removed in future */
2532                 adsp_err(dsp, "Only a single stream supported per DSP\n");
2533                 ret = -EBUSY;
2534                 goto out;
2535         }
2536
2537         compr = kzalloc(sizeof(*compr), GFP_KERNEL);
2538         if (!compr) {
2539                 ret = -ENOMEM;
2540                 goto out;
2541         }
2542
2543         compr->dsp = dsp;
2544         compr->stream = stream;
2545
2546         dsp->compr = compr;
2547
2548         stream->runtime->private_data = compr;
2549
2550 out:
2551         mutex_unlock(&dsp->pwr_lock);
2552
2553         return ret;
2554 }
2555 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
2556
2557 int wm_adsp_compr_free(struct snd_compr_stream *stream)
2558 {
2559         struct wm_adsp_compr *compr = stream->runtime->private_data;
2560         struct wm_adsp *dsp = compr->dsp;
2561
2562         mutex_lock(&dsp->pwr_lock);
2563
2564         wm_adsp_compr_detach(compr);
2565         dsp->compr = NULL;
2566
2567         kfree(compr->raw_buf);
2568         kfree(compr);
2569
2570         mutex_unlock(&dsp->pwr_lock);
2571
2572         return 0;
2573 }
2574 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
2575
2576 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
2577                                       struct snd_compr_params *params)
2578 {
2579         struct wm_adsp_compr *compr = stream->runtime->private_data;
2580         struct wm_adsp *dsp = compr->dsp;
2581         const struct wm_adsp_fw_caps *caps;
2582         const struct snd_codec_desc *desc;
2583         int i, j;
2584
2585         if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
2586             params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
2587             params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
2588             params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
2589             params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
2590                 adsp_err(dsp, "Invalid buffer fragsize=%d fragments=%d\n",
2591                          params->buffer.fragment_size,
2592                          params->buffer.fragments);
2593
2594                 return -EINVAL;
2595         }
2596
2597         for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
2598                 caps = &wm_adsp_fw[dsp->fw].caps[i];
2599                 desc = &caps->desc;
2600
2601                 if (caps->id != params->codec.id)
2602                         continue;
2603
2604                 if (stream->direction == SND_COMPRESS_PLAYBACK) {
2605                         if (desc->max_ch < params->codec.ch_out)
2606                                 continue;
2607                 } else {
2608                         if (desc->max_ch < params->codec.ch_in)
2609                                 continue;
2610                 }
2611
2612                 if (!(desc->formats & (1 << params->codec.format)))
2613                         continue;
2614
2615                 for (j = 0; j < desc->num_sample_rates; ++j)
2616                         if (desc->sample_rates[j] == params->codec.sample_rate)
2617                                 return 0;
2618         }
2619
2620         adsp_err(dsp, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
2621                  params->codec.id, params->codec.ch_in, params->codec.ch_out,
2622                  params->codec.sample_rate, params->codec.format);
2623         return -EINVAL;
2624 }
2625
2626 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
2627 {
2628         return compr->size.fragment_size / WM_ADSP_DATA_WORD_SIZE;
2629 }
2630
2631 int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
2632                              struct snd_compr_params *params)
2633 {
2634         struct wm_adsp_compr *compr = stream->runtime->private_data;
2635         unsigned int size;
2636         int ret;
2637
2638         ret = wm_adsp_compr_check_params(stream, params);
2639         if (ret)
2640                 return ret;
2641
2642         compr->size = params->buffer;
2643
2644         adsp_dbg(compr->dsp, "fragment_size=%d fragments=%d\n",
2645                  compr->size.fragment_size, compr->size.fragments);
2646
2647         size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
2648         compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
2649         if (!compr->raw_buf)
2650                 return -ENOMEM;
2651
2652         compr->sample_rate = params->codec.sample_rate;
2653
2654         return 0;
2655 }
2656 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
2657
2658 int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
2659                            struct snd_compr_caps *caps)
2660 {
2661         struct wm_adsp_compr *compr = stream->runtime->private_data;
2662         int fw = compr->dsp->fw;
2663         int i;
2664
2665         if (wm_adsp_fw[fw].caps) {
2666                 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
2667                         caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
2668
2669                 caps->num_codecs = i;
2670                 caps->direction = wm_adsp_fw[fw].compr_direction;
2671
2672                 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
2673                 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
2674                 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
2675                 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
2676         }
2677
2678         return 0;
2679 }
2680 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
2681
2682 static int wm_adsp_read_data_block(struct wm_adsp *dsp, int mem_type,
2683                                    unsigned int mem_addr,
2684                                    unsigned int num_words, u32 *data)
2685 {
2686         struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2687         unsigned int i, reg;
2688         int ret;
2689
2690         if (!mem)
2691                 return -EINVAL;
2692
2693         reg = wm_adsp_region_to_reg(mem, mem_addr);
2694
2695         ret = regmap_raw_read(dsp->regmap, reg, data,
2696                               sizeof(*data) * num_words);
2697         if (ret < 0)
2698                 return ret;
2699
2700         for (i = 0; i < num_words; ++i)
2701                 data[i] = be32_to_cpu(data[i]) & 0x00ffffffu;
2702
2703         return 0;
2704 }
2705
2706 static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
2707                                          unsigned int mem_addr, u32 *data)
2708 {
2709         return wm_adsp_read_data_block(dsp, mem_type, mem_addr, 1, data);
2710 }
2711
2712 static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
2713                                    unsigned int mem_addr, u32 data)
2714 {
2715         struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2716         unsigned int reg;
2717
2718         if (!mem)
2719                 return -EINVAL;
2720
2721         reg = wm_adsp_region_to_reg(mem, mem_addr);
2722
2723         data = cpu_to_be32(data & 0x00ffffffu);
2724
2725         return regmap_raw_write(dsp->regmap, reg, &data, sizeof(data));
2726 }
2727
2728 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
2729                                       unsigned int field_offset, u32 *data)
2730 {
2731         return wm_adsp_read_data_word(buf->dsp, WMFW_ADSP2_XM,
2732                                       buf->host_buf_ptr + field_offset, data);
2733 }
2734
2735 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
2736                                        unsigned int field_offset, u32 data)
2737 {
2738         return wm_adsp_write_data_word(buf->dsp, WMFW_ADSP2_XM,
2739                                        buf->host_buf_ptr + field_offset, data);
2740 }
2741
2742 static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf)
2743 {
2744         struct wm_adsp_alg_region *alg_region;
2745         struct wm_adsp *dsp = buf->dsp;
2746         u32 xmalg, addr, magic;
2747         int i, ret;
2748
2749         alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
2750         xmalg = sizeof(struct wm_adsp_system_config_xm_hdr) / sizeof(__be32);
2751
2752         addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
2753         ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
2754         if (ret < 0)
2755                 return ret;
2756
2757         if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
2758                 return -EINVAL;
2759
2760         addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
2761         for (i = 0; i < 5; ++i) {
2762                 ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
2763                                              &buf->host_buf_ptr);
2764                 if (ret < 0)
2765                         return ret;
2766
2767                 if (buf->host_buf_ptr)
2768                         break;
2769
2770                 usleep_range(1000, 2000);
2771         }
2772
2773         if (!buf->host_buf_ptr)
2774                 return -EIO;
2775
2776         adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);
2777
2778         return 0;
2779 }
2780
2781 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
2782 {
2783         const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
2784         struct wm_adsp_buffer_region *region;
2785         u32 offset = 0;
2786         int i, ret;
2787
2788         for (i = 0; i < caps->num_regions; ++i) {
2789                 region = &buf->regions[i];
2790
2791                 region->offset = offset;
2792                 region->mem_type = caps->region_defs[i].mem_type;
2793
2794                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
2795                                           &region->base_addr);
2796                 if (ret < 0)
2797                         return ret;
2798
2799                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
2800                                           &offset);
2801                 if (ret < 0)
2802                         return ret;
2803
2804                 region->cumulative_size = offset;
2805
2806                 adsp_dbg(buf->dsp,
2807                          "region=%d type=%d base=%04x off=%04x size=%04x\n",
2808                          i, region->mem_type, region->base_addr,
2809                          region->offset, region->cumulative_size);
2810         }
2811
2812         return 0;
2813 }
2814
2815 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
2816 {
2817         struct wm_adsp_compr_buf *buf;
2818         int ret;
2819
2820         buf = kzalloc(sizeof(*buf), GFP_KERNEL);
2821         if (!buf)
2822                 return -ENOMEM;
2823
2824         buf->dsp = dsp;
2825         buf->read_index = -1;
2826         buf->irq_count = 0xFFFFFFFF;
2827
2828         ret = wm_adsp_buffer_locate(buf);
2829         if (ret < 0) {
2830                 adsp_err(dsp, "Failed to acquire host buffer: %d\n", ret);
2831                 goto err_buffer;
2832         }
2833
2834         buf->regions = kcalloc(wm_adsp_fw[dsp->fw].caps->num_regions,
2835                                sizeof(*buf->regions), GFP_KERNEL);
2836         if (!buf->regions) {
2837                 ret = -ENOMEM;
2838                 goto err_buffer;
2839         }
2840
2841         ret = wm_adsp_buffer_populate(buf);
2842         if (ret < 0) {
2843                 adsp_err(dsp, "Failed to populate host buffer: %d\n", ret);
2844                 goto err_regions;
2845         }
2846
2847         dsp->buffer = buf;
2848
2849         return 0;
2850
2851 err_regions:
2852         kfree(buf->regions);
2853 err_buffer:
2854         kfree(buf);
2855         return ret;
2856 }
2857
2858 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
2859 {
2860         if (dsp->buffer) {
2861                 wm_adsp_compr_detach(dsp->buffer->compr);
2862
2863                 kfree(dsp->buffer->regions);
2864                 kfree(dsp->buffer);
2865
2866                 dsp->buffer = NULL;
2867         }
2868
2869         return 0;
2870 }
2871
2872 int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd)
2873 {
2874         struct wm_adsp_compr *compr = stream->runtime->private_data;
2875         struct wm_adsp *dsp = compr->dsp;
2876         int ret = 0;
2877
2878         adsp_dbg(dsp, "Trigger: %d\n", cmd);
2879
2880         mutex_lock(&dsp->pwr_lock);
2881
2882         switch (cmd) {
2883         case SNDRV_PCM_TRIGGER_START:
2884                 if (wm_adsp_compr_attached(compr))
2885                         break;
2886
2887                 ret = wm_adsp_compr_attach(compr);
2888                 if (ret < 0) {
2889                         adsp_err(dsp, "Failed to link buffer and stream: %d\n",
2890                                  ret);
2891                         break;
2892                 }
2893
2894                 /* Trigger the IRQ at one fragment of data */
2895                 ret = wm_adsp_buffer_write(compr->buf,
2896                                            HOST_BUFFER_FIELD(high_water_mark),
2897                                            wm_adsp_compr_frag_words(compr));
2898                 if (ret < 0) {
2899                         adsp_err(dsp, "Failed to set high water mark: %d\n",
2900                                  ret);
2901                         break;
2902                 }
2903                 break;
2904         case SNDRV_PCM_TRIGGER_STOP:
2905                 break;
2906         default:
2907                 ret = -EINVAL;
2908                 break;
2909         }
2910
2911         mutex_unlock(&dsp->pwr_lock);
2912
2913         return ret;
2914 }
2915 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
2916
2917 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
2918 {
2919         int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
2920
2921         return buf->regions[last_region].cumulative_size;
2922 }
2923
2924 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
2925 {
2926         u32 next_read_index, next_write_index;
2927         int write_index, read_index, avail;
2928         int ret;
2929
2930         /* Only sync read index if we haven't already read a valid index */
2931         if (buf->read_index < 0) {
2932                 ret = wm_adsp_buffer_read(buf,
2933                                 HOST_BUFFER_FIELD(next_read_index),
2934                                 &next_read_index);
2935                 if (ret < 0)
2936                         return ret;
2937
2938                 read_index = sign_extend32(next_read_index, 23);
2939
2940                 if (read_index < 0) {
2941                         adsp_dbg(buf->dsp, "Avail check on unstarted stream\n");
2942                         return 0;
2943                 }
2944
2945                 buf->read_index = read_index;
2946         }
2947
2948         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
2949                         &next_write_index);
2950         if (ret < 0)
2951                 return ret;
2952
2953         write_index = sign_extend32(next_write_index, 23);
2954
2955         avail = write_index - buf->read_index;
2956         if (avail < 0)
2957                 avail += wm_adsp_buffer_size(buf);
2958
2959         adsp_dbg(buf->dsp, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
2960                  buf->read_index, write_index, avail * WM_ADSP_DATA_WORD_SIZE);
2961
2962         buf->avail = avail;
2963
2964         return 0;
2965 }
2966
2967 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
2968 {
2969         int ret;
2970
2971         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
2972         if (ret < 0) {
2973                 adsp_err(buf->dsp, "Failed to check buffer error: %d\n", ret);
2974                 return ret;
2975         }
2976         if (buf->error != 0) {
2977                 adsp_err(buf->dsp, "Buffer error occurred: %d\n", buf->error);
2978                 return -EIO;
2979         }
2980
2981         return 0;
2982 }
2983
2984 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
2985 {
2986         struct wm_adsp_compr_buf *buf;
2987         struct wm_adsp_compr *compr;
2988         int ret = 0;
2989
2990         mutex_lock(&dsp->pwr_lock);
2991
2992         buf = dsp->buffer;
2993         compr = dsp->compr;
2994
2995         if (!buf) {
2996                 ret = -ENODEV;
2997                 goto out;
2998         }
2999
3000         adsp_dbg(dsp, "Handling buffer IRQ\n");
3001
3002         ret = wm_adsp_buffer_get_error(buf);
3003         if (ret < 0)
3004                 goto out_notify; /* Wake poll to report error */
3005
3006         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
3007                                   &buf->irq_count);
3008         if (ret < 0) {
3009                 adsp_err(dsp, "Failed to get irq_count: %d\n", ret);
3010                 goto out;
3011         }
3012
3013         ret = wm_adsp_buffer_update_avail(buf);
3014         if (ret < 0) {
3015                 adsp_err(dsp, "Error reading avail: %d\n", ret);
3016                 goto out;
3017         }
3018
3019         if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
3020                 ret = WM_ADSP_COMPR_VOICE_TRIGGER;
3021
3022 out_notify:
3023         if (compr && compr->stream)
3024                 snd_compr_fragment_elapsed(compr->stream);
3025
3026 out:
3027         mutex_unlock(&dsp->pwr_lock);
3028
3029         return ret;
3030 }
3031 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
3032
3033 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
3034 {
3035         if (buf->irq_count & 0x01)
3036                 return 0;
3037
3038         adsp_dbg(buf->dsp, "Enable IRQ(0x%x) for next fragment\n",
3039                  buf->irq_count);
3040
3041         buf->irq_count |= 0x01;
3042
3043         return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
3044                                     buf->irq_count);
3045 }
3046
3047 int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
3048                           struct snd_compr_tstamp *tstamp)
3049 {
3050         struct wm_adsp_compr *compr = stream->runtime->private_data;
3051         struct wm_adsp *dsp = compr->dsp;
3052         struct wm_adsp_compr_buf *buf;
3053         int ret = 0;
3054
3055         adsp_dbg(dsp, "Pointer request\n");
3056
3057         mutex_lock(&dsp->pwr_lock);
3058
3059         buf = compr->buf;
3060
3061         if (!compr->buf || compr->buf->error) {
3062                 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
3063                 ret = -EIO;
3064                 goto out;
3065         }
3066
3067         if (buf->avail < wm_adsp_compr_frag_words(compr)) {
3068                 ret = wm_adsp_buffer_update_avail(buf);
3069                 if (ret < 0) {
3070                         adsp_err(dsp, "Error reading avail: %d\n", ret);
3071                         goto out;
3072                 }
3073
3074                 /*
3075                  * If we really have less than 1 fragment available tell the
3076                  * DSP to inform us once a whole fragment is available.
3077                  */
3078                 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
3079                         ret = wm_adsp_buffer_get_error(buf);
3080                         if (ret < 0) {
3081                                 if (compr->buf->error)
3082                                         snd_compr_stop_error(stream,
3083                                                         SNDRV_PCM_STATE_XRUN);
3084                                 goto out;
3085                         }
3086
3087                         ret = wm_adsp_buffer_reenable_irq(buf);
3088                         if (ret < 0) {
3089                                 adsp_err(dsp,
3090                                          "Failed to re-enable buffer IRQ: %d\n",
3091                                          ret);
3092                                 goto out;
3093                         }
3094                 }
3095         }
3096
3097         tstamp->copied_total = compr->copied_total;
3098         tstamp->copied_total += buf->avail * WM_ADSP_DATA_WORD_SIZE;
3099         tstamp->sampling_rate = compr->sample_rate;
3100
3101 out:
3102         mutex_unlock(&dsp->pwr_lock);
3103
3104         return ret;
3105 }
3106 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
3107
3108 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
3109 {
3110         struct wm_adsp_compr_buf *buf = compr->buf;
3111         u8 *pack_in = (u8 *)compr->raw_buf;
3112         u8 *pack_out = (u8 *)compr->raw_buf;
3113         unsigned int adsp_addr;
3114         int mem_type, nwords, max_read;
3115         int i, j, ret;
3116
3117         /* Calculate read parameters */
3118         for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
3119                 if (buf->read_index < buf->regions[i].cumulative_size)
3120                         break;
3121
3122         if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
3123                 return -EINVAL;
3124
3125         mem_type = buf->regions[i].mem_type;
3126         adsp_addr = buf->regions[i].base_addr +
3127                     (buf->read_index - buf->regions[i].offset);
3128
3129         max_read = wm_adsp_compr_frag_words(compr);
3130         nwords = buf->regions[i].cumulative_size - buf->read_index;
3131
3132         if (nwords > target)
3133                 nwords = target;
3134         if (nwords > buf->avail)
3135                 nwords = buf->avail;
3136         if (nwords > max_read)
3137                 nwords = max_read;
3138         if (!nwords)
3139                 return 0;
3140
3141         /* Read data from DSP */
3142         ret = wm_adsp_read_data_block(buf->dsp, mem_type, adsp_addr,
3143                                       nwords, compr->raw_buf);
3144         if (ret < 0)
3145                 return ret;
3146
3147         /* Remove the padding bytes from the data read from the DSP */
3148         for (i = 0; i < nwords; i++) {
3149                 for (j = 0; j < WM_ADSP_DATA_WORD_SIZE; j++)
3150                         *pack_out++ = *pack_in++;
3151
3152                 pack_in += sizeof(*(compr->raw_buf)) - WM_ADSP_DATA_WORD_SIZE;
3153         }
3154
3155         /* update read index to account for words read */
3156         buf->read_index += nwords;
3157         if (buf->read_index == wm_adsp_buffer_size(buf))
3158                 buf->read_index = 0;
3159
3160         ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
3161                                    buf->read_index);
3162         if (ret < 0)
3163                 return ret;
3164
3165         /* update avail to account for words read */
3166         buf->avail -= nwords;
3167
3168         return nwords;
3169 }
3170
3171 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
3172                               char __user *buf, size_t count)
3173 {
3174         struct wm_adsp *dsp = compr->dsp;
3175         int ntotal = 0;
3176         int nwords, nbytes;
3177
3178         adsp_dbg(dsp, "Requested read of %zu bytes\n", count);
3179
3180         if (!compr->buf || compr->buf->error) {
3181                 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
3182                 return -EIO;
3183         }
3184
3185         count /= WM_ADSP_DATA_WORD_SIZE;
3186
3187         do {
3188                 nwords = wm_adsp_buffer_capture_block(compr, count);
3189                 if (nwords < 0) {
3190                         adsp_err(dsp, "Failed to capture block: %d\n", nwords);
3191                         return nwords;
3192                 }
3193
3194                 nbytes = nwords * WM_ADSP_DATA_WORD_SIZE;
3195
3196                 adsp_dbg(dsp, "Read %d bytes\n", nbytes);
3197
3198                 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
3199                         adsp_err(dsp, "Failed to copy data to user: %d, %d\n",
3200                                  ntotal, nbytes);
3201                         return -EFAULT;
3202                 }
3203
3204                 count -= nwords;
3205                 ntotal += nbytes;
3206         } while (nwords > 0 && count > 0);
3207
3208         compr->copied_total += ntotal;
3209
3210         return ntotal;
3211 }
3212
3213 int wm_adsp_compr_copy(struct snd_compr_stream *stream, char __user *buf,
3214                        size_t count)
3215 {
3216         struct wm_adsp_compr *compr = stream->runtime->private_data;
3217         struct wm_adsp *dsp = compr->dsp;
3218         int ret;
3219
3220         mutex_lock(&dsp->pwr_lock);
3221
3222         if (stream->direction == SND_COMPRESS_CAPTURE)
3223                 ret = wm_adsp_compr_read(compr, buf, count);
3224         else
3225                 ret = -ENOTSUPP;
3226
3227         mutex_unlock(&dsp->pwr_lock);
3228
3229         return ret;
3230 }
3231 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
3232
3233 MODULE_LICENSE("GPL v2");