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