sound/soc/codecs/wm_adsp.c

   1 /*
   2  * wm_adsp.c  --  Wolfson ADSP support
   3  *
   4  * Copyright 2012 Wolfson Microelectronics plc
   5  *
   6  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/moduleparam.h>
  15 #include <linux/init.h>
  16 #include <linux/delay.h>
  17 #include <linux/firmware.h>
  18 #include <linux/list.h>
  19 #include <linux/pm.h>
  20 #include <linux/pm_runtime.h>
  21 #include <linux/regmap.h>
  22 #include <linux/regulator/consumer.h>
  23 #include <linux/slab.h>
  24 #include <linux/vmalloc.h>
  25 #include <linux/workqueue.h>
  26 #include <linux/debugfs.h>
  27 #include <sound/core.h>
  28 #include <sound/pcm.h>
  29 #include <sound/pcm_params.h>
  30 #include <sound/soc.h>
  31 #include <sound/jack.h>
  32 #include <sound/initval.h>
  33 #include <sound/tlv.h>
  34
  35 #include "wm_adsp.h"
  36
  37 #define adsp_crit(_dsp, fmt, ...) \
  38         dev_crit(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  39 #define adsp_err(_dsp, fmt, ...) \
  40         dev_err(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  41 #define adsp_warn(_dsp, fmt, ...) \
  42         dev_warn(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  43 #define adsp_info(_dsp, fmt, ...) \
  44         dev_info(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  45 #define adsp_dbg(_dsp, fmt, ...) \
  46         dev_dbg(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
  47
  48 #define ADSP1_CONTROL_1                   0x00
  49 #define ADSP1_CONTROL_2                   0x02
  50 #define ADSP1_CONTROL_3                   0x03
  51 #define ADSP1_CONTROL_4                   0x04
  52 #define ADSP1_CONTROL_5                   0x06
  53 #define ADSP1_CONTROL_6                   0x07
  54 #define ADSP1_CONTROL_7                   0x08
  55 #define ADSP1_CONTROL_8                   0x09
  56 #define ADSP1_CONTROL_9                   0x0A
  57 #define ADSP1_CONTROL_10                  0x0B
  58 #define ADSP1_CONTROL_11                  0x0C
  59 #define ADSP1_CONTROL_12                  0x0D
  60 #define ADSP1_CONTROL_13                  0x0F
  61 #define ADSP1_CONTROL_14                  0x10
  62 #define ADSP1_CONTROL_15                  0x11
  63 #define ADSP1_CONTROL_16                  0x12
  64 #define ADSP1_CONTROL_17                  0x13
  65 #define ADSP1_CONTROL_18                  0x14
  66 #define ADSP1_CONTROL_19                  0x16
  67 #define ADSP1_CONTROL_20                  0x17
  68 #define ADSP1_CONTROL_21                  0x18
  69 #define ADSP1_CONTROL_22                  0x1A
  70 #define ADSP1_CONTROL_23                  0x1B
  71 #define ADSP1_CONTROL_24                  0x1C
  72 #define ADSP1_CONTROL_25                  0x1E
  73 #define ADSP1_CONTROL_26                  0x20
  74 #define ADSP1_CONTROL_27                  0x21
  75 #define ADSP1_CONTROL_28                  0x22
  76 #define ADSP1_CONTROL_29                  0x23
  77 #define ADSP1_CONTROL_30                  0x24
  78 #define ADSP1_CONTROL_31                  0x26
  79
  80 /*
  81  * ADSP1 Control 19
  82  */
  83 #define ADSP1_WDMA_BUFFER_LENGTH_MASK     0x00FF  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
  84 #define ADSP1_WDMA_BUFFER_LENGTH_SHIFT         0  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
  85 #define ADSP1_WDMA_BUFFER_LENGTH_WIDTH         8  /* DSP1_WDMA_BUFFER_LENGTH - [7:0] */
  86
  87
  88 /*
  89  * ADSP1 Control 30
  90  */
  91 #define ADSP1_DBG_CLK_ENA                 0x0008  /* DSP1_DBG_CLK_ENA */
  92 #define ADSP1_DBG_CLK_ENA_MASK            0x0008  /* DSP1_DBG_CLK_ENA */
  93 #define ADSP1_DBG_CLK_ENA_SHIFT                3  /* DSP1_DBG_CLK_ENA */
  94 #define ADSP1_DBG_CLK_ENA_WIDTH                1  /* DSP1_DBG_CLK_ENA */
  95 #define ADSP1_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
  96 #define ADSP1_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
  97 #define ADSP1_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
  98 #define ADSP1_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
  99 #define ADSP1_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
 100 #define ADSP1_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
 101 #define ADSP1_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
 102 #define ADSP1_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
 103 #define ADSP1_START                       0x0001  /* DSP1_START */
 104 #define ADSP1_START_MASK                  0x0001  /* DSP1_START */
 105 #define ADSP1_START_SHIFT                      0  /* DSP1_START */
 106 #define ADSP1_START_WIDTH                      1  /* DSP1_START */
 107
 108 /*
 109  * ADSP1 Control 31
 110  */
 111 #define ADSP1_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
 112 #define ADSP1_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
 113 #define ADSP1_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
 114
 115 #define ADSP2_CONTROL        0x0
 116 #define ADSP2_CLOCKING       0x1
 117 #define ADSP2_STATUS1        0x4
 118 #define ADSP2_WDMA_CONFIG_1 0x30
 119 #define ADSP2_WDMA_CONFIG_2 0x31
 120 #define ADSP2_RDMA_CONFIG_1 0x34
 121
 122 #define ADSP2_SCRATCH0        0x40
 123 #define ADSP2_SCRATCH1        0x41
 124 #define ADSP2_SCRATCH2        0x42
 125 #define ADSP2_SCRATCH3        0x43
 126
 127 /*
 128  * ADSP2 Control
 129  */
 130
 131 #define ADSP2_MEM_ENA                     0x0010  /* DSP1_MEM_ENA */
 132 #define ADSP2_MEM_ENA_MASK                0x0010  /* DSP1_MEM_ENA */
 133 #define ADSP2_MEM_ENA_SHIFT                    4  /* DSP1_MEM_ENA */
 134 #define ADSP2_MEM_ENA_WIDTH                    1  /* DSP1_MEM_ENA */
 135 #define ADSP2_SYS_ENA                     0x0004  /* DSP1_SYS_ENA */
 136 #define ADSP2_SYS_ENA_MASK                0x0004  /* DSP1_SYS_ENA */
 137 #define ADSP2_SYS_ENA_SHIFT                    2  /* DSP1_SYS_ENA */
 138 #define ADSP2_SYS_ENA_WIDTH                    1  /* DSP1_SYS_ENA */
 139 #define ADSP2_CORE_ENA                    0x0002  /* DSP1_CORE_ENA */
 140 #define ADSP2_CORE_ENA_MASK               0x0002  /* DSP1_CORE_ENA */
 141 #define ADSP2_CORE_ENA_SHIFT                   1  /* DSP1_CORE_ENA */
 142 #define ADSP2_CORE_ENA_WIDTH                   1  /* DSP1_CORE_ENA */
 143 #define ADSP2_START                       0x0001  /* DSP1_START */
 144 #define ADSP2_START_MASK                  0x0001  /* DSP1_START */
 145 #define ADSP2_START_SHIFT                      0  /* DSP1_START */
 146 #define ADSP2_START_WIDTH                      1  /* DSP1_START */
 147
 148 /*
 149  * ADSP2 clocking
 150  */
 151 #define ADSP2_CLK_SEL_MASK                0x0007  /* CLK_SEL_ENA */
 152 #define ADSP2_CLK_SEL_SHIFT                    0  /* CLK_SEL_ENA */
 153 #define ADSP2_CLK_SEL_WIDTH                    3  /* CLK_SEL_ENA */
 154
 155 /*
 156  * ADSP2 Status 1
 157  */
 158 #define ADSP2_RAM_RDY                     0x0001
 159 #define ADSP2_RAM_RDY_MASK                0x0001
 160 #define ADSP2_RAM_RDY_SHIFT                    0
 161 #define ADSP2_RAM_RDY_WIDTH                    1
 162
 163 #define ADSP_MAX_STD_CTRL_SIZE               512
 164
 165 struct wm_adsp_buf {
 166         struct list_head list;
 167         void *buf;
 168 };
 169
 170 static struct wm_adsp_buf *wm_adsp_buf_alloc(const void *src, size_t len,
 171                                              struct list_head *list)
 172 {
 173         struct wm_adsp_buf *buf = kzalloc(sizeof(*buf), GFP_KERNEL);
 174
 175         if (buf == NULL)
 176                 return NULL;
 177
 178         buf->buf = vmalloc(len);
 179         if (!buf->buf) {
 180                 vfree(buf);
 181                 return NULL;
 182         }
 183         memcpy(buf->buf, src, len);
 184
 185         if (list)
 186                 list_add_tail(&buf->list, list);
 187
 188         return buf;
 189 }
 190
 191 static void wm_adsp_buf_free(struct list_head *list)
 192 {
 193         while (!list_empty(list)) {
 194                 struct wm_adsp_buf *buf = list_first_entry(list,
 195                                                            struct wm_adsp_buf,
 196                                                            list);
 197                 list_del(&buf->list);
 198                 vfree(buf->buf);
 199                 kfree(buf);
 200         }
 201 }
 202
 203 #define WM_ADSP_FW_MBC_VSS  0
 204 #define WM_ADSP_FW_HIFI     1
 205 #define WM_ADSP_FW_TX       2
 206 #define WM_ADSP_FW_TX_SPK   3
 207 #define WM_ADSP_FW_RX       4
 208 #define WM_ADSP_FW_RX_ANC   5
 209 #define WM_ADSP_FW_CTRL     6
 210 #define WM_ADSP_FW_ASR      7
 211 #define WM_ADSP_FW_TRACE    8
 212 #define WM_ADSP_FW_SPK_PROT 9
 213 #define WM_ADSP_FW_MISC     10
 214
 215 #define WM_ADSP_NUM_FW      11
 216
 217 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
 218         [WM_ADSP_FW_MBC_VSS] =  "MBC/VSS",
 219         [WM_ADSP_FW_HIFI] =     "MasterHiFi",
 220         [WM_ADSP_FW_TX] =       "Tx",
 221         [WM_ADSP_FW_TX_SPK] =   "Tx Speaker",
 222         [WM_ADSP_FW_RX] =       "Rx",
 223         [WM_ADSP_FW_RX_ANC] =   "Rx ANC",
 224         [WM_ADSP_FW_CTRL] =     "Voice Ctrl",
 225         [WM_ADSP_FW_ASR] =      "ASR Assist",
 226         [WM_ADSP_FW_TRACE] =    "Dbg Trace",
 227         [WM_ADSP_FW_SPK_PROT] = "Protection",
 228         [WM_ADSP_FW_MISC] =     "Misc",
 229 };
 230
 231 struct wm_adsp_system_config_xm_hdr {
 232         __be32 sys_enable;
 233         __be32 fw_id;
 234         __be32 fw_rev;
 235         __be32 boot_status;
 236         __be32 watchdog;
 237         __be32 dma_buffer_size;
 238         __be32 rdma[6];
 239         __be32 wdma[8];
 240         __be32 build_job_name[3];
 241         __be32 build_job_number;
 242 };
 243
 244 struct wm_adsp_alg_xm_struct {
 245         __be32 magic;
 246         __be32 smoothing;
 247         __be32 threshold;
 248         __be32 host_buf_ptr;
 249         __be32 start_seq;
 250         __be32 high_water_mark;
 251         __be32 low_water_mark;
 252         __be64 smoothed_power;
 253 };
 254
 255 struct wm_adsp_buffer {
 256         __be32 X_buf_base;              /* XM base addr of first X area */
 257         __be32 X_buf_size;              /* Size of 1st X area in words */
 258         __be32 X_buf_base2;             /* XM base addr of 2nd X area */
 259         __be32 X_buf_brk;               /* Total X size in words */
 260         __be32 Y_buf_base;              /* YM base addr of Y area */
 261         __be32 wrap;                    /* Total size X and Y in words */
 262         __be32 high_water_mark;         /* Point at which IRQ is asserted */
 263         __be32 irq_count;               /* bits 1-31 count IRQ assertions */
 264         __be32 irq_ack;                 /* acked IRQ count, bit 0 enables IRQ */
 265         __be32 next_write_index;        /* word index of next write */
 266         __be32 next_read_index;         /* word index of next read */
 267         __be32 error;                   /* error if any */
 268         __be32 oldest_block_index;      /* word index of oldest surviving */
 269         __be32 requested_rewind;        /* how many blocks rewind was done */
 270         __be32 reserved_space;          /* internal */
 271         __be32 min_free;                /* min free space since stream start */
 272         __be32 blocks_written[2];       /* total blocks written (64 bit) */
 273         __be32 words_written[2];        /* total words written (64 bit) */
 274 };
 275
 276 struct wm_adsp_compr;
 277
 278 struct wm_adsp_compr_buf {
 279         struct wm_adsp *dsp;
 280         struct wm_adsp_compr *compr;
 281
 282         struct wm_adsp_buffer_region *regions;
 283         u32 host_buf_ptr;
 284
 285         u32 error;
 286         u32 irq_count;
 287         int read_index;
 288         int avail;
 289 };
 290
 291 struct wm_adsp_compr {
 292         struct wm_adsp *dsp;
 293         struct wm_adsp_compr_buf *buf;
 294
 295         struct snd_compr_stream *stream;
 296         struct snd_compressed_buffer size;
 297
 298         u32 *raw_buf;
 299         unsigned int copied_total;
 300
 301         unsigned int sample_rate;
 302 };
 303
 304 #define WM_ADSP_DATA_WORD_SIZE         3
 305
 306 #define WM_ADSP_MIN_FRAGMENTS          1
 307 #define WM_ADSP_MAX_FRAGMENTS          256
 308 #define WM_ADSP_MIN_FRAGMENT_SIZE      (64 * WM_ADSP_DATA_WORD_SIZE)
 309 #define WM_ADSP_MAX_FRAGMENT_SIZE      (4096 * WM_ADSP_DATA_WORD_SIZE)
 310
 311 #define WM_ADSP_ALG_XM_STRUCT_MAGIC    0x49aec7
 312
 313 #define HOST_BUFFER_FIELD(field) \
 314         (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
 315
 316 #define ALG_XM_FIELD(field) \
 317         (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
 318
 319 static int wm_adsp_buffer_init(struct wm_adsp *dsp);
 320 static int wm_adsp_buffer_free(struct wm_adsp *dsp);
 321
 322 struct wm_adsp_buffer_region {
 323         unsigned int offset;
 324         unsigned int cumulative_size;
 325         unsigned int mem_type;
 326         unsigned int base_addr;
 327 };
 328
 329 struct wm_adsp_buffer_region_def {
 330         unsigned int mem_type;
 331         unsigned int base_offset;
 332         unsigned int size_offset;
 333 };
 334
 335 static const struct wm_adsp_buffer_region_def default_regions[] = {
 336         {
 337                 .mem_type = WMFW_ADSP2_XM,
 338                 .base_offset = HOST_BUFFER_FIELD(X_buf_base),
 339                 .size_offset = HOST_BUFFER_FIELD(X_buf_size),
 340         },
 341         {
 342                 .mem_type = WMFW_ADSP2_XM,
 343                 .base_offset = HOST_BUFFER_FIELD(X_buf_base2),
 344                 .size_offset = HOST_BUFFER_FIELD(X_buf_brk),
 345         },
 346         {
 347                 .mem_type = WMFW_ADSP2_YM,
 348                 .base_offset = HOST_BUFFER_FIELD(Y_buf_base),
 349                 .size_offset = HOST_BUFFER_FIELD(wrap),
 350         },
 351 };
 352
 353 struct wm_adsp_fw_caps {
 354         u32 id;
 355         struct snd_codec_desc desc;
 356         int num_regions;
 357         const struct wm_adsp_buffer_region_def *region_defs;
 358 };
 359
 360 static const struct wm_adsp_fw_caps ctrl_caps[] = {
 361         {
 362                 .id = SND_AUDIOCODEC_BESPOKE,
 363                 .desc = {
 364                         .max_ch = 1,
 365                         .sample_rates = { 16000 },
 366                         .num_sample_rates = 1,
 367                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 368                 },
 369                 .num_regions = ARRAY_SIZE(default_regions),
 370                 .region_defs = default_regions,
 371         },
 372 };
 373
 374 static const struct wm_adsp_fw_caps trace_caps[] = {
 375         {
 376                 .id = SND_AUDIOCODEC_BESPOKE,
 377                 .desc = {
 378                         .max_ch = 8,
 379                         .sample_rates = {
 380                                 4000, 8000, 11025, 12000, 16000, 22050,
 381                                 24000, 32000, 44100, 48000, 64000, 88200,
 382                                 96000, 176400, 192000
 383                         },
 384                         .num_sample_rates = 15,
 385                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 386                 },
 387                 .num_regions = ARRAY_SIZE(default_regions),
 388                 .region_defs = default_regions,
 389         },
 390 };
 391
 392 static const struct {
 393         const char *file;
 394         int compr_direction;
 395         int num_caps;
 396         const struct wm_adsp_fw_caps *caps;
 397         bool voice_trigger;
 398 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
 399         [WM_ADSP_FW_MBC_VSS] =  { .file = "mbc-vss" },
 400         [WM_ADSP_FW_HIFI] =     { .file = "hifi" },
 401         [WM_ADSP_FW_TX] =       { .file = "tx" },
 402         [WM_ADSP_FW_TX_SPK] =   { .file = "tx-spk" },
 403         [WM_ADSP_FW_RX] =       { .file = "rx" },
 404         [WM_ADSP_FW_RX_ANC] =   { .file = "rx-anc" },
 405         [WM_ADSP_FW_CTRL] =     {
 406                 .file = "ctrl",
 407                 .compr_direction = SND_COMPRESS_CAPTURE,
 408                 .num_caps = ARRAY_SIZE(ctrl_caps),
 409                 .caps = ctrl_caps,
 410                 .voice_trigger = true,
 411         },
 412         [WM_ADSP_FW_ASR] =      { .file = "asr" },
 413         [WM_ADSP_FW_TRACE] =    {
 414                 .file = "trace",
 415                 .compr_direction = SND_COMPRESS_CAPTURE,
 416                 .num_caps = ARRAY_SIZE(trace_caps),
 417                 .caps = trace_caps,
 418         },
 419         [WM_ADSP_FW_SPK_PROT] = { .file = "spk-prot" },
 420         [WM_ADSP_FW_MISC] =     { .file = "misc" },
 421 };
 422
 423 struct wm_coeff_ctl_ops {
 424         int (*xget)(struct snd_kcontrol *kcontrol,
 425                     struct snd_ctl_elem_value *ucontrol);
 426         int (*xput)(struct snd_kcontrol *kcontrol,
 427                     struct snd_ctl_elem_value *ucontrol);
 428         int (*xinfo)(struct snd_kcontrol *kcontrol,
 429                      struct snd_ctl_elem_info *uinfo);
 430 };
 431
 432 struct wm_coeff_ctl {
 433         const char *name;
 434         const char *fw_name;
 435         struct wm_adsp_alg_region alg_region;
 436         struct wm_coeff_ctl_ops ops;
 437         struct wm_adsp *dsp;
 438         unsigned int enabled:1;
 439         struct list_head list;
 440         void *cache;
 441         unsigned int offset;
 442         size_t len;
 443         unsigned int set:1;
 444         struct snd_kcontrol *kcontrol;
 445         struct soc_bytes_ext bytes_ext;
 446         unsigned int flags;
 447 };
 448
 449 #ifdef CONFIG_DEBUG_FS
 450 static void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp, const char *s)
 451 {
 452         char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
 453
 454         kfree(dsp->wmfw_file_name);
 455         dsp->wmfw_file_name = tmp;
 456 }
 457
 458 static void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp, const char *s)
 459 {
 460         char *tmp = kasprintf(GFP_KERNEL, "%s\n", s);
 461
 462         kfree(dsp->bin_file_name);
 463         dsp->bin_file_name = tmp;
 464 }
 465
 466 static void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
 467 {
 468         kfree(dsp->wmfw_file_name);
 469         kfree(dsp->bin_file_name);
 470         dsp->wmfw_file_name = NULL;
 471         dsp->bin_file_name = NULL;
 472 }
 473
 474 static ssize_t wm_adsp_debugfs_wmfw_read(struct file *file,
 475                                          char __user *user_buf,
 476                                          size_t count, loff_t *ppos)
 477 {
 478         struct wm_adsp *dsp = file->private_data;
 479         ssize_t ret;
 480
 481         mutex_lock(&dsp->pwr_lock);
 482
 483         if (!dsp->wmfw_file_name || !dsp->booted)
 484                 ret = 0;
 485         else
 486                 ret = simple_read_from_buffer(user_buf, count, ppos,
 487                                               dsp->wmfw_file_name,
 488                                               strlen(dsp->wmfw_file_name));
 489
 490         mutex_unlock(&dsp->pwr_lock);
 491         return ret;
 492 }
 493
 494 static ssize_t wm_adsp_debugfs_bin_read(struct file *file,
 495                                         char __user *user_buf,
 496                                         size_t count, loff_t *ppos)
 497 {
 498         struct wm_adsp *dsp = file->private_data;
 499         ssize_t ret;
 500
 501         mutex_lock(&dsp->pwr_lock);
 502
 503         if (!dsp->bin_file_name || !dsp->booted)
 504                 ret = 0;
 505         else
 506                 ret = simple_read_from_buffer(user_buf, count, ppos,
 507                                               dsp->bin_file_name,
 508                                               strlen(dsp->bin_file_name));
 509
 510         mutex_unlock(&dsp->pwr_lock);
 511         return ret;
 512 }
 513
 514 static const struct {
 515         const char *name;
 516         const struct file_operations fops;
 517 } wm_adsp_debugfs_fops[] = {
 518         {
 519                 .name = "wmfw_file_name",
 520                 .fops = {
 521                         .open = simple_open,
 522                         .read = wm_adsp_debugfs_wmfw_read,
 523                 },
 524         },
 525         {
 526                 .name = "bin_file_name",
 527                 .fops = {
 528                         .open = simple_open,
 529                         .read = wm_adsp_debugfs_bin_read,
 530                 },
 531         },
 532 };
 533
 534 static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
 535                                   struct snd_soc_codec *codec)
 536 {
 537         struct dentry *root = NULL;
 538         char *root_name;
 539         int i;
 540
 541         if (!codec->component.debugfs_root) {
 542                 adsp_err(dsp, "No codec debugfs root\n");
 543                 goto err;
 544         }
 545
 546         root_name = kmalloc(PAGE_SIZE, GFP_KERNEL);
 547         if (!root_name)
 548                 goto err;
 549
 550         snprintf(root_name, PAGE_SIZE, "dsp%d", dsp->num);
 551         root = debugfs_create_dir(root_name, codec->component.debugfs_root);
 552         kfree(root_name);
 553
 554         if (!root)
 555                 goto err;
 556
 557         if (!debugfs_create_bool("booted", S_IRUGO, root, &dsp->booted))
 558                 goto err;
 559
 560         if (!debugfs_create_bool("running", S_IRUGO, root, &dsp->running))
 561                 goto err;
 562
 563         if (!debugfs_create_x32("fw_id", S_IRUGO, root, &dsp->fw_id))
 564                 goto err;
 565
 566         if (!debugfs_create_x32("fw_version", S_IRUGO, root,
 567                                 &dsp->fw_id_version))
 568                 goto err;
 569
 570         for (i = 0; i < ARRAY_SIZE(wm_adsp_debugfs_fops); ++i) {
 571                 if (!debugfs_create_file(wm_adsp_debugfs_fops[i].name,
 572                                          S_IRUGO, root, dsp,
 573                                          &wm_adsp_debugfs_fops[i].fops))
 574                         goto err;
 575         }
 576
 577         dsp->debugfs_root = root;
 578         return;
 579
 580 err:
 581         debugfs_remove_recursive(root);
 582         adsp_err(dsp, "Failed to create debugfs\n");
 583 }
 584
 585 static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
 586 {
 587         wm_adsp_debugfs_clear(dsp);
 588         debugfs_remove_recursive(dsp->debugfs_root);
 589 }
 590 #else
 591 static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
 592                                          struct snd_soc_codec *codec)
 593 {
 594 }
 595
 596 static inline void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
 597 {
 598 }
 599
 600 static inline void wm_adsp_debugfs_save_wmfwname(struct wm_adsp *dsp,
 601                                                  const char *s)
 602 {
 603 }
 604
 605 static inline void wm_adsp_debugfs_save_binname(struct wm_adsp *dsp,
 606                                                 const char *s)
 607 {
 608 }
 609
 610 static inline void wm_adsp_debugfs_clear(struct wm_adsp *dsp)
 611 {
 612 }
 613 #endif
 614
 615 static int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
 616                           struct snd_ctl_elem_value *ucontrol)
 617 {
 618         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 619         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 620         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
 621
 622         ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
 623
 624         return 0;
 625 }
 626
 627 static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
 628                           struct snd_ctl_elem_value *ucontrol)
 629 {
 630         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 631         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 632         struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec);
 633         int ret = 0;
 634
 635         if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
 636                 return 0;
 637
 638         if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
 639                 return -EINVAL;
 640
 641         mutex_lock(&dsp[e->shift_l].pwr_lock);
 642
 643         if (dsp[e->shift_l].booted || dsp[e->shift_l].compr)
 644                 ret = -EBUSY;
 645         else
 646                 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
 647
 648         mutex_unlock(&dsp[e->shift_l].pwr_lock);
 649
 650         return ret;
 651 }
 652
 653 static const struct soc_enum wm_adsp_fw_enum[] = {
 654         SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 655         SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 656         SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 657         SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 658 };
 659
 660 const struct snd_kcontrol_new wm_adsp_fw_controls[] = {
 661         SOC_ENUM_EXT("DSP1 Firmware", wm_adsp_fw_enum[0],
 662                      wm_adsp_fw_get, wm_adsp_fw_put),
 663         SOC_ENUM_EXT("DSP2 Firmware", wm_adsp_fw_enum[1],
 664                      wm_adsp_fw_get, wm_adsp_fw_put),
 665         SOC_ENUM_EXT("DSP3 Firmware", wm_adsp_fw_enum[2],
 666                      wm_adsp_fw_get, wm_adsp_fw_put),
 667         SOC_ENUM_EXT("DSP4 Firmware", wm_adsp_fw_enum[3],
 668                      wm_adsp_fw_get, wm_adsp_fw_put),
 669 };
 670 EXPORT_SYMBOL_GPL(wm_adsp_fw_controls);
 671
 672 static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
 673                                                         int type)
 674 {
 675         int i;
 676
 677         for (i = 0; i < dsp->num_mems; i++)
 678                 if (dsp->mem[i].type == type)
 679                         return &dsp->mem[i];
 680
 681         return NULL;
 682 }
 683
 684 static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *mem,
 685                                           unsigned int offset)
 686 {
 687         if (WARN_ON(!mem))
 688                 return offset;
 689         switch (mem->type) {
 690         case WMFW_ADSP1_PM:
 691                 return mem->base + (offset * 3);
 692         case WMFW_ADSP1_DM:
 693                 return mem->base + (offset * 2);
 694         case WMFW_ADSP2_XM:
 695                 return mem->base + (offset * 2);
 696         case WMFW_ADSP2_YM:
 697                 return mem->base + (offset * 2);
 698         case WMFW_ADSP1_ZM:
 699                 return mem->base + (offset * 2);
 700         default:
 701                 WARN(1, "Unknown memory region type");
 702                 return offset;
 703         }
 704 }
 705
 706 static void wm_adsp2_show_fw_status(struct wm_adsp *dsp)
 707 {
 708         u16 scratch[4];
 709         int ret;
 710
 711         ret = regmap_raw_read(dsp->regmap, dsp->base + ADSP2_SCRATCH0,
 712                                 scratch, sizeof(scratch));
 713         if (ret) {
 714                 adsp_err(dsp, "Failed to read SCRATCH regs: %d\n", ret);
 715                 return;
 716         }
 717
 718         adsp_dbg(dsp, "FW SCRATCH 0:0x%x 1:0x%x 2:0x%x 3:0x%x\n",
 719                  be16_to_cpu(scratch[0]),
 720                  be16_to_cpu(scratch[1]),
 721                  be16_to_cpu(scratch[2]),
 722                  be16_to_cpu(scratch[3]));
 723 }
 724
 725 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
 726 {
 727         return container_of(ext, struct wm_coeff_ctl, bytes_ext);
 728 }
 729
 730 static int wm_coeff_info(struct snd_kcontrol *kctl,
 731                          struct snd_ctl_elem_info *uinfo)
 732 {
 733         struct soc_bytes_ext *bytes_ext =
 734                 (struct soc_bytes_ext *)kctl->private_value;
 735         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 736
 737         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 738         uinfo->count = ctl->len;
 739         return 0;
 740 }
 741
 742 static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
 743                                   const void *buf, size_t len)
 744 {
 745         struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
 746         const struct wm_adsp_region *mem;
 747         struct wm_adsp *dsp = ctl->dsp;
 748         void *scratch;
 749         int ret;
 750         unsigned int reg;
 751
 752         mem = wm_adsp_find_region(dsp, alg_region->type);
 753         if (!mem) {
 754                 adsp_err(dsp, "No base for region %x\n",
 755                          alg_region->type);
 756                 return -EINVAL;
 757         }
 758
 759         reg = ctl->alg_region.base + ctl->offset;
 760         reg = wm_adsp_region_to_reg(mem, reg);
 761
 762         scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
 763         if (!scratch)
 764                 return -ENOMEM;
 765
 766         ret = regmap_raw_write(dsp->regmap, reg, scratch,
 767                                len);
 768         if (ret) {
 769                 adsp_err(dsp, "Failed to write %zu bytes to %x: %d\n",
 770                          len, reg, ret);
 771                 kfree(scratch);
 772                 return ret;
 773         }
 774         adsp_dbg(dsp, "Wrote %zu bytes to %x\n", len, reg);
 775
 776         kfree(scratch);
 777
 778         return 0;
 779 }
 780
 781 static int wm_coeff_put(struct snd_kcontrol *kctl,
 782                         struct snd_ctl_elem_value *ucontrol)
 783 {
 784         struct soc_bytes_ext *bytes_ext =
 785                 (struct soc_bytes_ext *)kctl->private_value;
 786         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 787         char *p = ucontrol->value.bytes.data;
 788         int ret = 0;
 789
 790         mutex_lock(&ctl->dsp->pwr_lock);
 791
 792         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
 793                 ret = -EPERM;
 794         else
 795                 memcpy(ctl->cache, p, ctl->len);
 796
 797         ctl->set = 1;
 798         if (ctl->enabled && ctl->dsp->running)
 799                 ret = wm_coeff_write_control(ctl, p, ctl->len);
 800
 801         mutex_unlock(&ctl->dsp->pwr_lock);
 802
 803         return ret;
 804 }
 805
 806 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
 807                             const unsigned int __user *bytes, unsigned int size)
 808 {
 809         struct soc_bytes_ext *bytes_ext =
 810                 (struct soc_bytes_ext *)kctl->private_value;
 811         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 812         int ret = 0;
 813
 814         mutex_lock(&ctl->dsp->pwr_lock);
 815
 816         if (copy_from_user(ctl->cache, bytes, size)) {
 817                 ret = -EFAULT;
 818         } else {
 819                 ctl->set = 1;
 820                 if (ctl->enabled && ctl->dsp->running)
 821                         ret = wm_coeff_write_control(ctl, ctl->cache, size);
 822                 else if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
 823                         ret = -EPERM;
 824         }
 825
 826         mutex_unlock(&ctl->dsp->pwr_lock);
 827
 828         return ret;
 829 }
 830
 831 static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
 832                                  void *buf, size_t len)
 833 {
 834         struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
 835         const struct wm_adsp_region *mem;
 836         struct wm_adsp *dsp = ctl->dsp;
 837         void *scratch;
 838         int ret;
 839         unsigned int reg;
 840
 841         mem = wm_adsp_find_region(dsp, alg_region->type);
 842         if (!mem) {
 843                 adsp_err(dsp, "No base for region %x\n",
 844                          alg_region->type);
 845                 return -EINVAL;
 846         }
 847
 848         reg = ctl->alg_region.base + ctl->offset;
 849         reg = wm_adsp_region_to_reg(mem, reg);
 850
 851         scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
 852         if (!scratch)
 853                 return -ENOMEM;
 854
 855         ret = regmap_raw_read(dsp->regmap, reg, scratch, len);
 856         if (ret) {
 857                 adsp_err(dsp, "Failed to read %zu bytes from %x: %d\n",
 858                          len, reg, ret);
 859                 kfree(scratch);
 860                 return ret;
 861         }
 862         adsp_dbg(dsp, "Read %zu bytes from %x\n", len, reg);
 863
 864         memcpy(buf, scratch, len);
 865         kfree(scratch);
 866
 867         return 0;
 868 }
 869
 870 static int wm_coeff_get(struct snd_kcontrol *kctl,
 871                         struct snd_ctl_elem_value *ucontrol)
 872 {
 873         struct soc_bytes_ext *bytes_ext =
 874                 (struct soc_bytes_ext *)kctl->private_value;
 875         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 876         char *p = ucontrol->value.bytes.data;
 877         int ret = 0;
 878
 879         mutex_lock(&ctl->dsp->pwr_lock);
 880
 881         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
 882                 if (ctl->enabled && ctl->dsp->running)
 883                         ret = wm_coeff_read_control(ctl, p, ctl->len);
 884                 else
 885                         ret = -EPERM;
 886         } else {
 887                 if (!ctl->flags && ctl->enabled && ctl->dsp->running)
 888                         ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
 889
 890                 memcpy(p, ctl->cache, ctl->len);
 891         }
 892
 893         mutex_unlock(&ctl->dsp->pwr_lock);
 894
 895         return ret;
 896 }
 897
 898 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
 899                             unsigned int __user *bytes, unsigned int size)
 900 {
 901         struct soc_bytes_ext *bytes_ext =
 902                 (struct soc_bytes_ext *)kctl->private_value;
 903         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 904         int ret = 0;
 905
 906         mutex_lock(&ctl->dsp->pwr_lock);
 907
 908         if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
 909                 if (ctl->enabled && ctl->dsp->running)
 910                         ret = wm_coeff_read_control(ctl, ctl->cache, size);
 911                 else
 912                         ret = -EPERM;
 913         } else {
 914                 if (!ctl->flags && ctl->enabled && ctl->dsp->running)
 915                         ret = wm_coeff_read_control(ctl, ctl->cache, size);
 916         }
 917
 918         if (!ret && copy_to_user(bytes, ctl->cache, size))
 919                 ret = -EFAULT;
 920
 921         mutex_unlock(&ctl->dsp->pwr_lock);
 922
 923         return ret;
 924 }
 925
 926 struct wmfw_ctl_work {
 927         struct wm_adsp *dsp;
 928         struct wm_coeff_ctl *ctl;
 929         struct work_struct work;
 930 };
 931
 932 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
 933 {
 934         unsigned int out, rd, wr, vol;
 935
 936         if (len > ADSP_MAX_STD_CTRL_SIZE) {
 937                 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 938                 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
 939                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 940
 941                 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
 942         } else {
 943                 rd = SNDRV_CTL_ELEM_ACCESS_READ;
 944                 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
 945                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 946
 947                 out = 0;
 948         }
 949
 950         if (in) {
 951                 out |= rd;
 952                 if (in & WMFW_CTL_FLAG_WRITEABLE)
 953                         out |= wr;
 954                 if (in & WMFW_CTL_FLAG_VOLATILE)
 955                         out |= vol;
 956         } else {
 957                 out |= rd | wr | vol;
 958         }
 959
 960         return out;
 961 }
 962
 963 static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
 964 {
 965         struct snd_kcontrol_new *kcontrol;
 966         int ret;
 967
 968         if (!ctl || !ctl->name)
 969                 return -EINVAL;
 970
 971         kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
 972         if (!kcontrol)
 973                 return -ENOMEM;
 974         kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 975
 976         kcontrol->name = ctl->name;
 977         kcontrol->info = wm_coeff_info;
 978         kcontrol->get = wm_coeff_get;
 979         kcontrol->put = wm_coeff_put;
 980         kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 981         kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
 982         kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
 983
 984         ctl->bytes_ext.max = ctl->len;
 985         ctl->bytes_ext.get = wm_coeff_tlv_get;
 986         ctl->bytes_ext.put = wm_coeff_tlv_put;
 987
 988         kcontrol->access = wmfw_convert_flags(ctl->flags, ctl->len);
 989
 990         ret = snd_soc_add_card_controls(dsp->card, kcontrol, 1);
 991         if (ret < 0)
 992                 goto err_kcontrol;
 993
 994         kfree(kcontrol);
 995
 996         ctl->kcontrol = snd_soc_card_get_kcontrol(dsp->card, ctl->name);
 997
 998         return 0;
 999
1000 err_kcontrol:
1001         kfree(kcontrol);
1002         return ret;
1003 }
1004
1005 static int wm_coeff_init_control_caches(struct wm_adsp *dsp)
1006 {
1007         struct wm_coeff_ctl *ctl;
1008         int ret;
1009
1010         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1011                 if (!ctl->enabled || ctl->set)
1012                         continue;
1013                 if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
1014                         continue;
1015
1016                 ret = wm_coeff_read_control(ctl, ctl->cache, ctl->len);
1017                 if (ret < 0)
1018                         return ret;
1019         }
1020
1021         return 0;
1022 }
1023
1024 static int wm_coeff_sync_controls(struct wm_adsp *dsp)
1025 {
1026         struct wm_coeff_ctl *ctl;
1027         int ret;
1028
1029         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1030                 if (!ctl->enabled)
1031                         continue;
1032                 if (ctl->set && !(ctl->flags & WMFW_CTL_FLAG_VOLATILE)) {
1033                         ret = wm_coeff_write_control(ctl, ctl->cache, ctl->len);
1034                         if (ret < 0)
1035                                 return ret;
1036                 }
1037         }
1038
1039         return 0;
1040 }
1041
1042 static void wm_adsp_ctl_work(struct work_struct *work)
1043 {
1044         struct wmfw_ctl_work *ctl_work = container_of(work,
1045                                                       struct wmfw_ctl_work,
1046                                                       work);
1047
1048         wmfw_add_ctl(ctl_work->dsp, ctl_work->ctl);
1049         kfree(ctl_work);
1050 }
1051
1052 static void wm_adsp_free_ctl_blk(struct wm_coeff_ctl *ctl)
1053 {
1054         kfree(ctl->cache);
1055         kfree(ctl->name);
1056         kfree(ctl);
1057 }
1058
1059 static int wm_adsp_create_control(struct wm_adsp *dsp,
1060                                   const struct wm_adsp_alg_region *alg_region,
1061                                   unsigned int offset, unsigned int len,
1062                                   const char *subname, unsigned int subname_len,
1063                                   unsigned int flags)
1064 {
1065         struct wm_coeff_ctl *ctl;
1066         struct wmfw_ctl_work *ctl_work;
1067         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1068         char *region_name;
1069         int ret;
1070
1071         if (flags & WMFW_CTL_FLAG_SYS)
1072                 return 0;
1073
1074         switch (alg_region->type) {
1075         case WMFW_ADSP1_PM:
1076                 region_name = "PM";
1077                 break;
1078         case WMFW_ADSP1_DM:
1079                 region_name = "DM";
1080                 break;
1081         case WMFW_ADSP2_XM:
1082                 region_name = "XM";
1083                 break;
1084         case WMFW_ADSP2_YM:
1085                 region_name = "YM";
1086                 break;
1087         case WMFW_ADSP1_ZM:
1088                 region_name = "ZM";
1089                 break;
1090         default:
1091                 adsp_err(dsp, "Unknown region type: %d\n", alg_region->type);
1092                 return -EINVAL;
1093         }
1094
1095         switch (dsp->fw_ver) {
1096         case 0:
1097         case 1:
1098                 snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
1099                          dsp->num, region_name, alg_region->alg);
1100                 break;
1101         default:
1102                 ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
1103                                 "DSP%d%c %.12s %x", dsp->num, *region_name,
1104                                 wm_adsp_fw_text[dsp->fw], alg_region->alg);
1105
1106                 /* Truncate the subname from the start if it is too long */
1107                 if (subname) {
1108                         int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
1109                         int skip = 0;
1110
1111                         if (subname_len > avail)
1112                                 skip = subname_len - avail;
1113
1114                         snprintf(name + ret,
1115                                  SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret, " %.*s",
1116                                  subname_len - skip, subname + skip);
1117                 }
1118                 break;
1119         }
1120
1121         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1122                 if (!strcmp(ctl->name, name)) {
1123                         if (!ctl->enabled)
1124                                 ctl->enabled = 1;
1125                         return 0;
1126                 }
1127         }
1128
1129         ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
1130         if (!ctl)
1131                 return -ENOMEM;
1132         ctl->fw_name = wm_adsp_fw_text[dsp->fw];
1133         ctl->alg_region = *alg_region;
1134         ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
1135         if (!ctl->name) {
1136                 ret = -ENOMEM;
1137                 goto err_ctl;
1138         }
1139         ctl->enabled = 1;
1140         ctl->set = 0;
1141         ctl->ops.xget = wm_coeff_get;
1142         ctl->ops.xput = wm_coeff_put;
1143         ctl->dsp = dsp;
1144
1145         ctl->flags = flags;
1146         ctl->offset = offset;
1147         ctl->len = len;
1148         ctl->cache = kzalloc(ctl->len, GFP_KERNEL);
1149         if (!ctl->cache) {
1150                 ret = -ENOMEM;
1151                 goto err_ctl_name;
1152         }
1153
1154         list_add(&ctl->list, &dsp->ctl_list);
1155
1156         ctl_work = kzalloc(sizeof(*ctl_work), GFP_KERNEL);
1157         if (!ctl_work) {
1158                 ret = -ENOMEM;
1159                 goto err_list_del;
1160         }
1161
1162         ctl_work->dsp = dsp;
1163         ctl_work->ctl = ctl;
1164         INIT_WORK(&ctl_work->work, wm_adsp_ctl_work);
1165         schedule_work(&ctl_work->work);
1166
1167         return 0;
1168
1169 err_list_del:
1170         list_del(&ctl->list);
1171         kfree(ctl->cache);
1172 err_ctl_name:
1173         kfree(ctl->name);
1174 err_ctl:
1175         kfree(ctl);
1176
1177         return ret;
1178 }
1179
1180 struct wm_coeff_parsed_alg {
1181         int id;
1182         const u8 *name;
1183         int name_len;
1184         int ncoeff;
1185 };
1186
1187 struct wm_coeff_parsed_coeff {
1188         int offset;
1189         int mem_type;
1190         const u8 *name;
1191         int name_len;
1192         int ctl_type;
1193         int flags;
1194         int len;
1195 };
1196
1197 static int wm_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
1198 {
1199         int length;
1200
1201         switch (bytes) {
1202         case 1:
1203                 length = **pos;
1204                 break;
1205         case 2:
1206                 length = le16_to_cpu(*((__le16 *)*pos));
1207                 break;
1208         default:
1209                 return 0;
1210         }
1211
1212         if (str)
1213                 *str = *pos + bytes;
1214
1215         *pos += ((length + bytes) + 3) & ~0x03;
1216
1217         return length;
1218 }
1219
1220 static int wm_coeff_parse_int(int bytes, const u8 **pos)
1221 {
1222         int val = 0;
1223
1224         switch (bytes) {
1225         case 2:
1226                 val = le16_to_cpu(*((__le16 *)*pos));
1227                 break;
1228         case 4:
1229                 val = le32_to_cpu(*((__le32 *)*pos));
1230                 break;
1231         default:
1232                 break;
1233         }
1234
1235         *pos += bytes;
1236
1237         return val;
1238 }
1239
1240 static inline void wm_coeff_parse_alg(struct wm_adsp *dsp, const u8 **data,
1241                                       struct wm_coeff_parsed_alg *blk)
1242 {
1243         const struct wmfw_adsp_alg_data *raw;
1244
1245         switch (dsp->fw_ver) {
1246         case 0:
1247         case 1:
1248                 raw = (const struct wmfw_adsp_alg_data *)*data;
1249                 *data = raw->data;
1250
1251                 blk->id = le32_to_cpu(raw->id);
1252                 blk->name = raw->name;
1253                 blk->name_len = strlen(raw->name);
1254                 blk->ncoeff = le32_to_cpu(raw->ncoeff);
1255                 break;
1256         default:
1257                 blk->id = wm_coeff_parse_int(sizeof(raw->id), data);
1258                 blk->name_len = wm_coeff_parse_string(sizeof(u8), data,
1259                                                       &blk->name);
1260                 wm_coeff_parse_string(sizeof(u16), data, NULL);
1261                 blk->ncoeff = wm_coeff_parse_int(sizeof(raw->ncoeff), data);
1262                 break;
1263         }
1264
1265         adsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
1266         adsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
1267         adsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
1268 }
1269
1270 static inline void wm_coeff_parse_coeff(struct wm_adsp *dsp, const u8 **data,
1271                                         struct wm_coeff_parsed_coeff *blk)
1272 {
1273         const struct wmfw_adsp_coeff_data *raw;
1274         const u8 *tmp;
1275         int length;
1276
1277         switch (dsp->fw_ver) {
1278         case 0:
1279         case 1:
1280                 raw = (const struct wmfw_adsp_coeff_data *)*data;
1281                 *data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
1282
1283                 blk->offset = le16_to_cpu(raw->hdr.offset);
1284                 blk->mem_type = le16_to_cpu(raw->hdr.type);
1285                 blk->name = raw->name;
1286                 blk->name_len = strlen(raw->name);
1287                 blk->ctl_type = le16_to_cpu(raw->ctl_type);
1288                 blk->flags = le16_to_cpu(raw->flags);
1289                 blk->len = le32_to_cpu(raw->len);
1290                 break;
1291         default:
1292                 tmp = *data;
1293                 blk->offset = wm_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
1294                 blk->mem_type = wm_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
1295                 length = wm_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
1296                 blk->name_len = wm_coeff_parse_string(sizeof(u8), &tmp,
1297                                                       &blk->name);
1298                 wm_coeff_parse_string(sizeof(u8), &tmp, NULL);
1299                 wm_coeff_parse_string(sizeof(u16), &tmp, NULL);
1300                 blk->ctl_type = wm_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
1301                 blk->flags = wm_coeff_parse_int(sizeof(raw->flags), &tmp);
1302                 blk->len = wm_coeff_parse_int(sizeof(raw->len), &tmp);
1303
1304                 *data = *data + sizeof(raw->hdr) + length;
1305                 break;
1306         }
1307
1308         adsp_dbg(dsp, "\tCoefficient type: %#x\n", blk->mem_type);
1309         adsp_dbg(dsp, "\tCoefficient offset: %#x\n", blk->offset);
1310         adsp_dbg(dsp, "\tCoefficient name: %.*s\n", blk->name_len, blk->name);
1311         adsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
1312         adsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
1313         adsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
1314 }
1315
1316 static int wm_adsp_parse_coeff(struct wm_adsp *dsp,
1317                                const struct wmfw_region *region)
1318 {
1319         struct wm_adsp_alg_region alg_region = {};
1320         struct wm_coeff_parsed_alg alg_blk;
1321         struct wm_coeff_parsed_coeff coeff_blk;
1322         const u8 *data = region->data;
1323         int i, ret;
1324
1325         wm_coeff_parse_alg(dsp, &data, &alg_blk);
1326         for (i = 0; i < alg_blk.ncoeff; i++) {
1327                 wm_coeff_parse_coeff(dsp, &data, &coeff_blk);
1328
1329                 switch (coeff_blk.ctl_type) {
1330                 case SNDRV_CTL_ELEM_TYPE_BYTES:
1331                         break;
1332                 default:
1333                         adsp_err(dsp, "Unknown control type: %d\n",
1334                                  coeff_blk.ctl_type);
1335                         return -EINVAL;
1336                 }
1337
1338                 alg_region.type = coeff_blk.mem_type;
1339                 alg_region.alg = alg_blk.id;
1340
1341                 ret = wm_adsp_create_control(dsp, &alg_region,
1342                                              coeff_blk.offset,
1343                                              coeff_blk.len,
1344                                              coeff_blk.name,
1345                                              coeff_blk.name_len,
1346                                              coeff_blk.flags);
1347                 if (ret < 0)
1348                         adsp_err(dsp, "Failed to create control: %.*s, %d\n",
1349                                  coeff_blk.name_len, coeff_blk.name, ret);
1350         }
1351
1352         return 0;
1353 }
1354
1355 static int wm_adsp_load(struct wm_adsp *dsp)
1356 {
1357         LIST_HEAD(buf_list);
1358         const struct firmware *firmware;
1359         struct regmap *regmap = dsp->regmap;
1360         unsigned int pos = 0;
1361         const struct wmfw_header *header;
1362         const struct wmfw_adsp1_sizes *adsp1_sizes;
1363         const struct wmfw_adsp2_sizes *adsp2_sizes;
1364         const struct wmfw_footer *footer;
1365         const struct wmfw_region *region;
1366         const struct wm_adsp_region *mem;
1367         const char *region_name;
1368         char *file, *text = NULL;
1369         struct wm_adsp_buf *buf;
1370         unsigned int reg;
1371         int regions = 0;
1372         int ret, offset, type, sizes;
1373
1374         file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1375         if (file == NULL)
1376                 return -ENOMEM;
1377
1378         snprintf(file, PAGE_SIZE, "/*(DEBLOBBED)*/", dsp->part, dsp->num,
1379                  wm_adsp_fw[dsp->fw].file);
1380         file[PAGE_SIZE - 1] = '\0';
1381
1382         ret = reject_firmware(&firmware, file, dsp->dev);
1383         if (ret != 0) {
1384                 adsp_err(dsp, "Failed to request '%s'\n", file);
1385                 goto out;
1386         }
1387         ret = -EINVAL;
1388
1389         pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1390         if (pos >= firmware->size) {
1391                 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1392                          file, firmware->size);
1393                 goto out_fw;
1394         }
1395
1396         header = (void *)&firmware->data[0];
1397
1398         if (memcmp(&header->magic[0], "WMFW", 4) != 0) {
1399                 adsp_err(dsp, "%s: invalid magic\n", file);
1400                 goto out_fw;
1401         }
1402
1403         switch (header->ver) {
1404         case 0:
1405                 adsp_warn(dsp, "%s: Depreciated file format %d\n",
1406                           file, header->ver);
1407                 break;
1408         case 1:
1409         case 2:
1410                 break;
1411         default:
1412                 adsp_err(dsp, "%s: unknown file format %d\n",
1413                          file, header->ver);
1414                 goto out_fw;
1415         }
1416
1417         adsp_info(dsp, "Firmware version: %d\n", header->ver);
1418         dsp->fw_ver = header->ver;
1419
1420         if (header->core != dsp->type) {
1421                 adsp_err(dsp, "%s: invalid core %d != %d\n",
1422                          file, header->core, dsp->type);
1423                 goto out_fw;
1424         }
1425
1426         switch (dsp->type) {
1427         case WMFW_ADSP1:
1428                 pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
1429                 adsp1_sizes = (void *)&(header[1]);
1430                 footer = (void *)&(adsp1_sizes[1]);
1431                 sizes = sizeof(*adsp1_sizes);
1432
1433                 adsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n",
1434                          file, le32_to_cpu(adsp1_sizes->dm),
1435                          le32_to_cpu(adsp1_sizes->pm),
1436                          le32_to_cpu(adsp1_sizes->zm));
1437                 break;
1438
1439         case WMFW_ADSP2:
1440                 pos = sizeof(*header) + sizeof(*adsp2_sizes) + sizeof(*footer);
1441                 adsp2_sizes = (void *)&(header[1]);
1442                 footer = (void *)&(adsp2_sizes[1]);
1443                 sizes = sizeof(*adsp2_sizes);
1444
1445                 adsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n",
1446                          file, le32_to_cpu(adsp2_sizes->xm),
1447                          le32_to_cpu(adsp2_sizes->ym),
1448                          le32_to_cpu(adsp2_sizes->pm),
1449                          le32_to_cpu(adsp2_sizes->zm));
1450                 break;
1451
1452         default:
1453                 WARN(1, "Unknown DSP type");
1454                 goto out_fw;
1455         }
1456
1457         if (le32_to_cpu(header->len) != sizeof(*header) +
1458             sizes + sizeof(*footer)) {
1459                 adsp_err(dsp, "%s: unexpected header length %d\n",
1460                          file, le32_to_cpu(header->len));
1461                 goto out_fw;
1462         }
1463
1464         adsp_dbg(dsp, "%s: timestamp %llu\n", file,
1465                  le64_to_cpu(footer->timestamp));
1466
1467         while (pos < firmware->size &&
1468                sizeof(*region) < firmware->size - pos) {
1469                 region = (void *)&(firmware->data[pos]);
1470                 region_name = "Unknown";
1471                 reg = 0;
1472                 text = NULL;
1473                 offset = le32_to_cpu(region->offset) & 0xffffff;
1474                 type = be32_to_cpu(region->type) & 0xff;
1475                 mem = wm_adsp_find_region(dsp, type);
1476
1477                 switch (type) {
1478                 case WMFW_NAME_TEXT:
1479                         region_name = "Firmware name";
1480                         text = kzalloc(le32_to_cpu(region->len) + 1,
1481                                        GFP_KERNEL);
1482                         break;
1483                 case WMFW_ALGORITHM_DATA:
1484                         region_name = "Algorithm";
1485                         ret = wm_adsp_parse_coeff(dsp, region);
1486                         if (ret != 0)
1487                                 goto out_fw;
1488                         break;
1489                 case WMFW_INFO_TEXT:
1490                         region_name = "Information";
1491                         text = kzalloc(le32_to_cpu(region->len) + 1,
1492                                        GFP_KERNEL);
1493                         break;
1494                 case WMFW_ABSOLUTE:
1495                         region_name = "Absolute";
1496                         reg = offset;
1497                         break;
1498                 case WMFW_ADSP1_PM:
1499                         region_name = "PM";
1500                         reg = wm_adsp_region_to_reg(mem, offset);
1501                         break;
1502                 case WMFW_ADSP1_DM:
1503                         region_name = "DM";
1504                         reg = wm_adsp_region_to_reg(mem, offset);
1505                         break;
1506                 case WMFW_ADSP2_XM:
1507                         region_name = "XM";
1508                         reg = wm_adsp_region_to_reg(mem, offset);
1509                         break;
1510                 case WMFW_ADSP2_YM:
1511                         region_name = "YM";
1512                         reg = wm_adsp_region_to_reg(mem, offset);
1513                         break;
1514                 case WMFW_ADSP1_ZM:
1515                         region_name = "ZM";
1516                         reg = wm_adsp_region_to_reg(mem, offset);
1517                         break;
1518                 default:
1519                         adsp_warn(dsp,
1520                                   "%s.%d: Unknown region type %x at %d(%x)\n",
1521                                   file, regions, type, pos, pos);
1522                         break;
1523                 }
1524
1525                 adsp_dbg(dsp, "%s.%d: %d bytes at %d in %s\n", file,
1526                          regions, le32_to_cpu(region->len), offset,
1527                          region_name);
1528
1529                 if (le32_to_cpu(region->len) >
1530                     firmware->size - pos - sizeof(*region)) {
1531                         adsp_err(dsp,
1532                                  "%s.%d: %s region len %d bytes exceeds file length %zu\n",
1533                                  file, regions, region_name,
1534                                  le32_to_cpu(region->len), firmware->size);
1535                         ret = -EINVAL;
1536                         goto out_fw;
1537                 }
1538
1539                 if (text) {
1540                         memcpy(text, region->data, le32_to_cpu(region->len));
1541                         adsp_info(dsp, "%s: %s\n", file, text);
1542                         kfree(text);
1543                         text = NULL;
1544                 }
1545
1546                 if (reg) {
1547                         buf = wm_adsp_buf_alloc(region->data,
1548                                                 le32_to_cpu(region->len),
1549                                                 &buf_list);
1550                         if (!buf) {
1551                                 adsp_err(dsp, "Out of memory\n");
1552                                 ret = -ENOMEM;
1553                                 goto out_fw;
1554                         }
1555
1556                         ret = regmap_raw_write_async(regmap, reg, buf->buf,
1557                                                      le32_to_cpu(region->len));
1558                         if (ret != 0) {
1559                                 adsp_err(dsp,
1560                                         "%s.%d: Failed to write %d bytes at %d in %s: %d\n",
1561                                         file, regions,
1562                                         le32_to_cpu(region->len), offset,
1563                                         region_name, ret);
1564                                 goto out_fw;
1565                         }
1566                 }
1567
1568                 pos += le32_to_cpu(region->len) + sizeof(*region);
1569                 regions++;
1570         }
1571
1572         ret = regmap_async_complete(regmap);
1573         if (ret != 0) {
1574                 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
1575                 goto out_fw;
1576         }
1577
1578         if (pos > firmware->size)
1579                 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
1580                           file, regions, pos - firmware->size);
1581
1582         wm_adsp_debugfs_save_wmfwname(dsp, file);
1583
1584 out_fw:
1585         regmap_async_complete(regmap);
1586         wm_adsp_buf_free(&buf_list);
1587         release_firmware(firmware);
1588         kfree(text);
1589 out:
1590         kfree(file);
1591
1592         return ret;
1593 }
1594
1595 static void wm_adsp_ctl_fixup_base(struct wm_adsp *dsp,
1596                                   const struct wm_adsp_alg_region *alg_region)
1597 {
1598         struct wm_coeff_ctl *ctl;
1599
1600         list_for_each_entry(ctl, &dsp->ctl_list, list) {
1601                 if (ctl->fw_name == wm_adsp_fw_text[dsp->fw] &&
1602                     alg_region->alg == ctl->alg_region.alg &&
1603                     alg_region->type == ctl->alg_region.type) {
1604                         ctl->alg_region.base = alg_region->base;
1605                 }
1606         }
1607 }
1608
1609 static void *wm_adsp_read_algs(struct wm_adsp *dsp, size_t n_algs,
1610                                unsigned int pos, unsigned int len)
1611 {
1612         void *alg;
1613         int ret;
1614         __be32 val;
1615
1616         if (n_algs == 0) {
1617                 adsp_err(dsp, "No algorithms\n");
1618                 return ERR_PTR(-EINVAL);
1619         }
1620
1621         if (n_algs > 1024) {
1622                 adsp_err(dsp, "Algorithm count %zx excessive\n", n_algs);
1623                 return ERR_PTR(-EINVAL);
1624         }
1625
1626         /* Read the terminator first to validate the length */
1627         ret = regmap_raw_read(dsp->regmap, pos + len, &val, sizeof(val));
1628         if (ret != 0) {
1629                 adsp_err(dsp, "Failed to read algorithm list end: %d\n",
1630                         ret);
1631                 return ERR_PTR(ret);
1632         }
1633
1634         if (be32_to_cpu(val) != 0xbedead)
1635                 adsp_warn(dsp, "Algorithm list end %x 0x%x != 0xbeadead\n",
1636                           pos + len, be32_to_cpu(val));
1637
1638         alg = kzalloc(len * 2, GFP_KERNEL | GFP_DMA);
1639         if (!alg)
1640                 return ERR_PTR(-ENOMEM);
1641
1642         ret = regmap_raw_read(dsp->regmap, pos, alg, len * 2);
1643         if (ret != 0) {
1644                 adsp_err(dsp, "Failed to read algorithm list: %d\n", ret);
1645                 kfree(alg);
1646                 return ERR_PTR(ret);
1647         }
1648
1649         return alg;
1650 }
1651
1652 static struct wm_adsp_alg_region *
1653         wm_adsp_find_alg_region(struct wm_adsp *dsp, int type, unsigned int id)
1654 {
1655         struct wm_adsp_alg_region *alg_region;
1656
1657         list_for_each_entry(alg_region, &dsp->alg_regions, list) {
1658                 if (id == alg_region->alg && type == alg_region->type)
1659                         return alg_region;
1660         }
1661
1662         return NULL;
1663 }
1664
1665 static struct wm_adsp_alg_region *wm_adsp_create_region(struct wm_adsp *dsp,
1666                                                         int type, __be32 id,
1667                                                         __be32 base)
1668 {
1669         struct wm_adsp_alg_region *alg_region;
1670
1671         alg_region = kzalloc(sizeof(*alg_region), GFP_KERNEL);
1672         if (!alg_region)
1673                 return ERR_PTR(-ENOMEM);
1674
1675         alg_region->type = type;
1676         alg_region->alg = be32_to_cpu(id);
1677         alg_region->base = be32_to_cpu(base);
1678
1679         list_add_tail(&alg_region->list, &dsp->alg_regions);
1680
1681         if (dsp->fw_ver > 0)
1682                 wm_adsp_ctl_fixup_base(dsp, alg_region);
1683
1684         return alg_region;
1685 }
1686
1687 static void wm_adsp_free_alg_regions(struct wm_adsp *dsp)
1688 {
1689         struct wm_adsp_alg_region *alg_region;
1690
1691         while (!list_empty(&dsp->alg_regions)) {
1692                 alg_region = list_first_entry(&dsp->alg_regions,
1693                                               struct wm_adsp_alg_region,
1694                                               list);
1695                 list_del(&alg_region->list);
1696                 kfree(alg_region);
1697         }
1698 }
1699
1700 static int wm_adsp1_setup_algs(struct wm_adsp *dsp)
1701 {
1702         struct wmfw_adsp1_id_hdr adsp1_id;
1703         struct wmfw_adsp1_alg_hdr *adsp1_alg;
1704         struct wm_adsp_alg_region *alg_region;
1705         const struct wm_adsp_region *mem;
1706         unsigned int pos, len;
1707         size_t n_algs;
1708         int i, ret;
1709
1710         mem = wm_adsp_find_region(dsp, WMFW_ADSP1_DM);
1711         if (WARN_ON(!mem))
1712                 return -EINVAL;
1713
1714         ret = regmap_raw_read(dsp->regmap, mem->base, &adsp1_id,
1715                               sizeof(adsp1_id));
1716         if (ret != 0) {
1717                 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1718                          ret);
1719                 return ret;
1720         }
1721
1722         n_algs = be32_to_cpu(adsp1_id.n_algs);
1723         dsp->fw_id = be32_to_cpu(adsp1_id.fw.id);
1724         adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1725                   dsp->fw_id,
1726                   (be32_to_cpu(adsp1_id.fw.ver) & 0xff0000) >> 16,
1727                   (be32_to_cpu(adsp1_id.fw.ver) & 0xff00) >> 8,
1728                   be32_to_cpu(adsp1_id.fw.ver) & 0xff,
1729                   n_algs);
1730
1731         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1732                                            adsp1_id.fw.id, adsp1_id.zm);
1733         if (IS_ERR(alg_region))
1734                 return PTR_ERR(alg_region);
1735
1736         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1737                                            adsp1_id.fw.id, adsp1_id.dm);
1738         if (IS_ERR(alg_region))
1739                 return PTR_ERR(alg_region);
1740
1741         pos = sizeof(adsp1_id) / 2;
1742         len = (sizeof(*adsp1_alg) * n_algs) / 2;
1743
1744         adsp1_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1745         if (IS_ERR(adsp1_alg))
1746                 return PTR_ERR(adsp1_alg);
1747
1748         for (i = 0; i < n_algs; i++) {
1749                 adsp_info(dsp, "%d: ID %x v%d.%d.%d DM@%x ZM@%x\n",
1750                           i, be32_to_cpu(adsp1_alg[i].alg.id),
1751                           (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff0000) >> 16,
1752                           (be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff00) >> 8,
1753                           be32_to_cpu(adsp1_alg[i].alg.ver) & 0xff,
1754                           be32_to_cpu(adsp1_alg[i].dm),
1755                           be32_to_cpu(adsp1_alg[i].zm));
1756
1757                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_DM,
1758                                                    adsp1_alg[i].alg.id,
1759                                                    adsp1_alg[i].dm);
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].dm);
1767                                 len -= be32_to_cpu(adsp1_alg[i].dm);
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 DM with ID %x\n",
1773                                           be32_to_cpu(adsp1_alg[i].alg.id));
1774                         }
1775                 }
1776
1777                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP1_ZM,
1778                                                    adsp1_alg[i].alg.id,
1779                                                    adsp1_alg[i].zm);
1780                 if (IS_ERR(alg_region)) {
1781                         ret = PTR_ERR(alg_region);
1782                         goto out;
1783                 }
1784                 if (dsp->fw_ver == 0) {
1785                         if (i + 1 < n_algs) {
1786                                 len = be32_to_cpu(adsp1_alg[i + 1].zm);
1787                                 len -= be32_to_cpu(adsp1_alg[i].zm);
1788                                 len *= 4;
1789                                 wm_adsp_create_control(dsp, alg_region, 0,
1790                                                        len, NULL, 0, 0);
1791                         } else {
1792                                 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1793                                           be32_to_cpu(adsp1_alg[i].alg.id));
1794                         }
1795                 }
1796         }
1797
1798 out:
1799         kfree(adsp1_alg);
1800         return ret;
1801 }
1802
1803 static int wm_adsp2_setup_algs(struct wm_adsp *dsp)
1804 {
1805         struct wmfw_adsp2_id_hdr adsp2_id;
1806         struct wmfw_adsp2_alg_hdr *adsp2_alg;
1807         struct wm_adsp_alg_region *alg_region;
1808         const struct wm_adsp_region *mem;
1809         unsigned int pos, len;
1810         size_t n_algs;
1811         int i, ret;
1812
1813         mem = wm_adsp_find_region(dsp, WMFW_ADSP2_XM);
1814         if (WARN_ON(!mem))
1815                 return -EINVAL;
1816
1817         ret = regmap_raw_read(dsp->regmap, mem->base, &adsp2_id,
1818                               sizeof(adsp2_id));
1819         if (ret != 0) {
1820                 adsp_err(dsp, "Failed to read algorithm info: %d\n",
1821                          ret);
1822                 return ret;
1823         }
1824
1825         n_algs = be32_to_cpu(adsp2_id.n_algs);
1826         dsp->fw_id = be32_to_cpu(adsp2_id.fw.id);
1827         dsp->fw_id_version = be32_to_cpu(adsp2_id.fw.ver);
1828         adsp_info(dsp, "Firmware: %x v%d.%d.%d, %zu algorithms\n",
1829                   dsp->fw_id,
1830                   (dsp->fw_id_version & 0xff0000) >> 16,
1831                   (dsp->fw_id_version & 0xff00) >> 8,
1832                   dsp->fw_id_version & 0xff,
1833                   n_algs);
1834
1835         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1836                                            adsp2_id.fw.id, adsp2_id.xm);
1837         if (IS_ERR(alg_region))
1838                 return PTR_ERR(alg_region);
1839
1840         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_YM,
1841                                            adsp2_id.fw.id, adsp2_id.ym);
1842         if (IS_ERR(alg_region))
1843                 return PTR_ERR(alg_region);
1844
1845         alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1846                                            adsp2_id.fw.id, adsp2_id.zm);
1847         if (IS_ERR(alg_region))
1848                 return PTR_ERR(alg_region);
1849
1850         pos = sizeof(adsp2_id) / 2;
1851         len = (sizeof(*adsp2_alg) * n_algs) / 2;
1852
1853         adsp2_alg = wm_adsp_read_algs(dsp, n_algs, mem->base + pos, len);
1854         if (IS_ERR(adsp2_alg))
1855                 return PTR_ERR(adsp2_alg);
1856
1857         for (i = 0; i < n_algs; i++) {
1858                 adsp_info(dsp,
1859                           "%d: ID %x v%d.%d.%d XM@%x YM@%x ZM@%x\n",
1860                           i, be32_to_cpu(adsp2_alg[i].alg.id),
1861                           (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff0000) >> 16,
1862                           (be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff00) >> 8,
1863                           be32_to_cpu(adsp2_alg[i].alg.ver) & 0xff,
1864                           be32_to_cpu(adsp2_alg[i].xm),
1865                           be32_to_cpu(adsp2_alg[i].ym),
1866                           be32_to_cpu(adsp2_alg[i].zm));
1867
1868                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_XM,
1869                                                    adsp2_alg[i].alg.id,
1870                                                    adsp2_alg[i].xm);
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].xm);
1878                                 len -= be32_to_cpu(adsp2_alg[i].xm);
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 XM 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_YM,
1889                                                    adsp2_alg[i].alg.id,
1890                                                    adsp2_alg[i].ym);
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].ym);
1898                                 len -= be32_to_cpu(adsp2_alg[i].ym);
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 YM with ID %x\n",
1904                                           be32_to_cpu(adsp2_alg[i].alg.id));
1905                         }
1906                 }
1907
1908                 alg_region = wm_adsp_create_region(dsp, WMFW_ADSP2_ZM,
1909                                                    adsp2_alg[i].alg.id,
1910                                                    adsp2_alg[i].zm);
1911                 if (IS_ERR(alg_region)) {
1912                         ret = PTR_ERR(alg_region);
1913                         goto out;
1914                 }
1915                 if (dsp->fw_ver == 0) {
1916                         if (i + 1 < n_algs) {
1917                                 len = be32_to_cpu(adsp2_alg[i + 1].zm);
1918                                 len -= be32_to_cpu(adsp2_alg[i].zm);
1919                                 len *= 4;
1920                                 wm_adsp_create_control(dsp, alg_region, 0,
1921                                                        len, NULL, 0, 0);
1922                         } else {
1923                                 adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
1924                                           be32_to_cpu(adsp2_alg[i].alg.id));
1925                         }
1926                 }
1927         }
1928
1929 out:
1930         kfree(adsp2_alg);
1931         return ret;
1932 }
1933
1934 static int wm_adsp_load_coeff(struct wm_adsp *dsp)
1935 {
1936         LIST_HEAD(buf_list);
1937         struct regmap *regmap = dsp->regmap;
1938         struct wmfw_coeff_hdr *hdr;
1939         struct wmfw_coeff_item *blk;
1940         const struct firmware *firmware;
1941         const struct wm_adsp_region *mem;
1942         struct wm_adsp_alg_region *alg_region;
1943         const char *region_name;
1944         int ret, pos, blocks, type, offset, reg;
1945         char *file;
1946         struct wm_adsp_buf *buf;
1947
1948         file = kzalloc(PAGE_SIZE, GFP_KERNEL);
1949         if (file == NULL)
1950                 return -ENOMEM;
1951
1952         snprintf(file, PAGE_SIZE, "/*(DEBLOBBED)*/", dsp->part, dsp->num,
1953                  wm_adsp_fw[dsp->fw].file);
1954         file[PAGE_SIZE - 1] = '\0';
1955
1956         ret = reject_firmware(&firmware, file, dsp->dev);
1957         if (ret != 0) {
1958                 adsp_warn(dsp, "Failed to request '%s'\n", file);
1959                 ret = 0;
1960                 goto out;
1961         }
1962         ret = -EINVAL;
1963
1964         if (sizeof(*hdr) >= firmware->size) {
1965                 adsp_err(dsp, "%s: file too short, %zu bytes\n",
1966                         file, firmware->size);
1967                 goto out_fw;
1968         }
1969
1970         hdr = (void *)&firmware->data[0];
1971         if (memcmp(hdr->magic, "WMDR", 4) != 0) {
1972                 adsp_err(dsp, "%s: invalid magic\n", file);
1973                 goto out_fw;
1974         }
1975
1976         switch (be32_to_cpu(hdr->rev) & 0xff) {
1977         case 1:
1978                 break;
1979         default:
1980                 adsp_err(dsp, "%s: Unsupported coefficient file format %d\n",
1981                          file, be32_to_cpu(hdr->rev) & 0xff);
1982                 ret = -EINVAL;
1983                 goto out_fw;
1984         }
1985
1986         adsp_dbg(dsp, "%s: v%d.%d.%d\n", file,
1987                 (le32_to_cpu(hdr->ver) >> 16) & 0xff,
1988                 (le32_to_cpu(hdr->ver) >>  8) & 0xff,
1989                 le32_to_cpu(hdr->ver) & 0xff);
1990
1991         pos = le32_to_cpu(hdr->len);
1992
1993         blocks = 0;
1994         while (pos < firmware->size &&
1995                sizeof(*blk) < firmware->size - pos) {
1996                 blk = (void *)(&firmware->data[pos]);
1997
1998                 type = le16_to_cpu(blk->type);
1999                 offset = le16_to_cpu(blk->offset);
2000
2001                 adsp_dbg(dsp, "%s.%d: %x v%d.%d.%d\n",
2002                          file, blocks, le32_to_cpu(blk->id),
2003                          (le32_to_cpu(blk->ver) >> 16) & 0xff,
2004                          (le32_to_cpu(blk->ver) >>  8) & 0xff,
2005                          le32_to_cpu(blk->ver) & 0xff);
2006                 adsp_dbg(dsp, "%s.%d: %d bytes at 0x%x in %x\n",
2007                          file, blocks, le32_to_cpu(blk->len), offset, type);
2008
2009                 reg = 0;
2010                 region_name = "Unknown";
2011                 switch (type) {
2012                 case (WMFW_NAME_TEXT << 8):
2013                 case (WMFW_INFO_TEXT << 8):
2014                         break;
2015                 case (WMFW_ABSOLUTE << 8):
2016                         /*
2017                          * Old files may use this for global
2018                          * coefficients.
2019                          */
2020                         if (le32_to_cpu(blk->id) == dsp->fw_id &&
2021                             offset == 0) {
2022                                 region_name = "global coefficients";
2023                                 mem = wm_adsp_find_region(dsp, type);
2024                                 if (!mem) {
2025                                         adsp_err(dsp, "No ZM\n");
2026                                         break;
2027                                 }
2028                                 reg = wm_adsp_region_to_reg(mem, 0);
2029
2030                         } else {
2031                                 region_name = "register";
2032                                 reg = offset;
2033                         }
2034                         break;
2035
2036                 case WMFW_ADSP1_DM:
2037                 case WMFW_ADSP1_ZM:
2038                 case WMFW_ADSP2_XM:
2039                 case WMFW_ADSP2_YM:
2040                         adsp_dbg(dsp, "%s.%d: %d bytes in %x for %x\n",
2041                                  file, blocks, le32_to_cpu(blk->len),
2042                                  type, le32_to_cpu(blk->id));
2043
2044                         mem = wm_adsp_find_region(dsp, type);
2045                         if (!mem) {
2046                                 adsp_err(dsp, "No base for region %x\n", type);
2047                                 break;
2048                         }
2049
2050                         alg_region = wm_adsp_find_alg_region(dsp, type,
2051                                                 le32_to_cpu(blk->id));
2052                         if (alg_region) {
2053                                 reg = alg_region->base;
2054                                 reg = wm_adsp_region_to_reg(mem, reg);
2055                                 reg += offset;
2056                         } else {
2057                                 adsp_err(dsp, "No %x for algorithm %x\n",
2058                                          type, le32_to_cpu(blk->id));
2059                         }
2060                         break;
2061
2062                 default:
2063                         adsp_err(dsp, "%s.%d: Unknown region type %x at %d\n",
2064                                  file, blocks, type, pos);
2065                         break;
2066                 }
2067
2068                 if (reg) {
2069                         if (le32_to_cpu(blk->len) >
2070                             firmware->size - pos - sizeof(*blk)) {
2071                                 adsp_err(dsp,
2072                                          "%s.%d: %s region len %d bytes exceeds file length %zu\n",
2073                                          file, blocks, region_name,
2074                                          le32_to_cpu(blk->len),
2075                                          firmware->size);
2076                                 ret = -EINVAL;
2077                                 goto out_fw;
2078                         }
2079
2080                         buf = wm_adsp_buf_alloc(blk->data,
2081                                                 le32_to_cpu(blk->len),
2082                                                 &buf_list);
2083                         if (!buf) {
2084                                 adsp_err(dsp, "Out of memory\n");
2085                                 ret = -ENOMEM;
2086                                 goto out_fw;
2087                         }
2088
2089                         adsp_dbg(dsp, "%s.%d: Writing %d bytes at %x\n",
2090                                  file, blocks, le32_to_cpu(blk->len),
2091                                  reg);
2092                         ret = regmap_raw_write_async(regmap, reg, buf->buf,
2093                                                      le32_to_cpu(blk->len));
2094                         if (ret != 0) {
2095                                 adsp_err(dsp,
2096                                         "%s.%d: Failed to write to %x in %s: %d\n",
2097                                         file, blocks, reg, region_name, ret);
2098                         }
2099                 }
2100
2101                 pos += (le32_to_cpu(blk->len) + sizeof(*blk) + 3) & ~0x03;
2102                 blocks++;
2103         }
2104
2105         ret = regmap_async_complete(regmap);
2106         if (ret != 0)
2107                 adsp_err(dsp, "Failed to complete async write: %d\n", ret);
2108
2109         if (pos > firmware->size)
2110                 adsp_warn(dsp, "%s.%d: %zu bytes at end of file\n",
2111                           file, blocks, pos - firmware->size);
2112
2113         wm_adsp_debugfs_save_binname(dsp, file);
2114
2115 out_fw:
2116         regmap_async_complete(regmap);
2117         release_firmware(firmware);
2118         wm_adsp_buf_free(&buf_list);
2119 out:
2120         kfree(file);
2121         return ret;
2122 }
2123
2124 int wm_adsp1_init(struct wm_adsp *dsp)
2125 {
2126         INIT_LIST_HEAD(&dsp->alg_regions);
2127
2128         mutex_init(&dsp->pwr_lock);
2129
2130         return 0;
2131 }
2132 EXPORT_SYMBOL_GPL(wm_adsp1_init);
2133
2134 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
2135                    struct snd_kcontrol *kcontrol,
2136                    int event)
2137 {
2138         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2139         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2140         struct wm_adsp *dsp = &dsps[w->shift];
2141         struct wm_coeff_ctl *ctl;
2142         int ret;
2143         unsigned int val;
2144
2145         dsp->card = codec->component.card;
2146
2147         mutex_lock(&dsp->pwr_lock);
2148
2149         switch (event) {
2150         case SND_SOC_DAPM_POST_PMU:
2151                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2152                                    ADSP1_SYS_ENA, ADSP1_SYS_ENA);
2153
2154                 /*
2155                  * For simplicity set the DSP clock rate to be the
2156                  * SYSCLK rate rather than making it configurable.
2157                  */
2158                 if (dsp->sysclk_reg) {
2159                         ret = regmap_read(dsp->regmap, dsp->sysclk_reg, &val);
2160                         if (ret != 0) {
2161                                 adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
2162                                 ret);
2163                                 goto err_mutex;
2164                         }
2165
2166                         val = (val & dsp->sysclk_mask) >> dsp->sysclk_shift;
2167
2168                         ret = regmap_update_bits(dsp->regmap,
2169                                                  dsp->base + ADSP1_CONTROL_31,
2170                                                  ADSP1_CLK_SEL_MASK, val);
2171                         if (ret != 0) {
2172                                 adsp_err(dsp, "Failed to set clock rate: %d\n",
2173                                          ret);
2174                                 goto err_mutex;
2175                         }
2176                 }
2177
2178                 ret = wm_adsp_load(dsp);
2179                 if (ret != 0)
2180                         goto err_ena;
2181
2182                 ret = wm_adsp1_setup_algs(dsp);
2183                 if (ret != 0)
2184                         goto err_ena;
2185
2186                 ret = wm_adsp_load_coeff(dsp);
2187                 if (ret != 0)
2188                         goto err_ena;
2189
2190                 /* Initialize caches for enabled and unset controls */
2191                 ret = wm_coeff_init_control_caches(dsp);
2192                 if (ret != 0)
2193                         goto err_ena;
2194
2195                 /* Sync set controls */
2196                 ret = wm_coeff_sync_controls(dsp);
2197                 if (ret != 0)
2198                         goto err_ena;
2199
2200                 dsp->booted = true;
2201
2202                 /* Start the core running */
2203                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2204                                    ADSP1_CORE_ENA | ADSP1_START,
2205                                    ADSP1_CORE_ENA | ADSP1_START);
2206
2207                 dsp->running = true;
2208                 break;
2209
2210         case SND_SOC_DAPM_PRE_PMD:
2211                 dsp->running = false;
2212                 dsp->booted = false;
2213
2214                 /* Halt the core */
2215                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2216                                    ADSP1_CORE_ENA | ADSP1_START, 0);
2217
2218                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_19,
2219                                    ADSP1_WDMA_BUFFER_LENGTH_MASK, 0);
2220
2221                 regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2222                                    ADSP1_SYS_ENA, 0);
2223
2224                 list_for_each_entry(ctl, &dsp->ctl_list, list)
2225                         ctl->enabled = 0;
2226
2227
2228                 wm_adsp_free_alg_regions(dsp);
2229                 break;
2230
2231         default:
2232                 break;
2233         }
2234
2235         mutex_unlock(&dsp->pwr_lock);
2236
2237         return 0;
2238
2239 err_ena:
2240         regmap_update_bits(dsp->regmap, dsp->base + ADSP1_CONTROL_30,
2241                            ADSP1_SYS_ENA, 0);
2242 err_mutex:
2243         mutex_unlock(&dsp->pwr_lock);
2244
2245         return ret;
2246 }
2247 EXPORT_SYMBOL_GPL(wm_adsp1_event);
2248
2249 static int wm_adsp2_ena(struct wm_adsp *dsp)
2250 {
2251         unsigned int val;
2252         int ret, count;
2253
2254         ret = regmap_update_bits_async(dsp->regmap, dsp->base + ADSP2_CONTROL,
2255                                        ADSP2_SYS_ENA, ADSP2_SYS_ENA);
2256         if (ret != 0)
2257                 return ret;
2258
2259         /* Wait for the RAM to start, should be near instantaneous */
2260         for (count = 0; count < 10; ++count) {
2261                 ret = regmap_read(dsp->regmap, dsp->base + ADSP2_STATUS1, &val);
2262                 if (ret != 0)
2263                         return ret;
2264
2265                 if (val & ADSP2_RAM_RDY)
2266                         break;
2267
2268                 usleep_range(250, 500);
2269         }
2270
2271         if (!(val & ADSP2_RAM_RDY)) {
2272                 adsp_err(dsp, "Failed to start DSP RAM\n");
2273                 return -EBUSY;
2274         }
2275
2276         adsp_dbg(dsp, "RAM ready after %d polls\n", count);
2277
2278         return 0;
2279 }
2280
2281 static void wm_adsp2_boot_work(struct work_struct *work)
2282 {
2283         struct wm_adsp *dsp = container_of(work,
2284                                            struct wm_adsp,
2285                                            boot_work);
2286         int ret;
2287
2288         mutex_lock(&dsp->pwr_lock);
2289
2290         ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2291                                  ADSP2_MEM_ENA, ADSP2_MEM_ENA);
2292         if (ret != 0)
2293                 goto err_mutex;
2294
2295         ret = wm_adsp2_ena(dsp);
2296         if (ret != 0)
2297                 goto err_mutex;
2298
2299         ret = wm_adsp_load(dsp);
2300         if (ret != 0)
2301                 goto err_ena;
2302
2303         ret = wm_adsp2_setup_algs(dsp);
2304         if (ret != 0)
2305                 goto err_ena;
2306
2307         ret = wm_adsp_load_coeff(dsp);
2308         if (ret != 0)
2309                 goto err_ena;
2310
2311         /* Initialize caches for enabled and unset controls */
2312         ret = wm_coeff_init_control_caches(dsp);
2313         if (ret != 0)
2314                 goto err_ena;
2315
2316         dsp->booted = true;
2317
2318         /* Turn DSP back off until we are ready to run */
2319         ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2320                                  ADSP2_SYS_ENA, 0);
2321         if (ret != 0)
2322                 goto err_ena;
2323
2324         mutex_unlock(&dsp->pwr_lock);
2325
2326         return;
2327
2328 err_ena:
2329         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2330                            ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2331 err_mutex:
2332         mutex_unlock(&dsp->pwr_lock);
2333 }
2334
2335 static void wm_adsp2_set_dspclk(struct wm_adsp *dsp, unsigned int freq)
2336 {
2337         int ret;
2338
2339         ret = regmap_update_bits_async(dsp->regmap,
2340                                        dsp->base + ADSP2_CLOCKING,
2341                                        ADSP2_CLK_SEL_MASK,
2342                                        freq << ADSP2_CLK_SEL_SHIFT);
2343         if (ret != 0)
2344                 adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
2345 }
2346
2347 int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
2348                          struct snd_kcontrol *kcontrol, int event,
2349                          unsigned int freq)
2350 {
2351         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2352         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2353         struct wm_adsp *dsp = &dsps[w->shift];
2354         struct wm_coeff_ctl *ctl;
2355
2356         dsp->card = codec->component.card;
2357
2358         switch (event) {
2359         case SND_SOC_DAPM_PRE_PMU:
2360                 wm_adsp2_set_dspclk(dsp, freq);
2361                 queue_work(system_unbound_wq, &dsp->boot_work);
2362                 break;
2363         case SND_SOC_DAPM_PRE_PMD:
2364                 wm_adsp_debugfs_clear(dsp);
2365
2366                 dsp->fw_id = 0;
2367                 dsp->fw_id_version = 0;
2368
2369                 dsp->booted = false;
2370
2371                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2372                                    ADSP2_MEM_ENA, 0);
2373
2374                 list_for_each_entry(ctl, &dsp->ctl_list, list)
2375                         ctl->enabled = 0;
2376
2377                 wm_adsp_free_alg_regions(dsp);
2378
2379                 adsp_dbg(dsp, "Shutdown complete\n");
2380                 break;
2381         default:
2382                 break;
2383         }
2384
2385         return 0;
2386 }
2387 EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
2388
2389 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
2390                    struct snd_kcontrol *kcontrol, int event)
2391 {
2392         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
2393         struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
2394         struct wm_adsp *dsp = &dsps[w->shift];
2395         int ret;
2396
2397         switch (event) {
2398         case SND_SOC_DAPM_POST_PMU:
2399                 flush_work(&dsp->boot_work);
2400
2401                 if (!dsp->booted)
2402                         return -EIO;
2403
2404                 ret = wm_adsp2_ena(dsp);
2405                 if (ret != 0)
2406                         goto err;
2407
2408                 /* Sync set controls */
2409                 ret = wm_coeff_sync_controls(dsp);
2410                 if (ret != 0)
2411                         goto err;
2412
2413                 ret = regmap_update_bits(dsp->regmap,
2414                                          dsp->base + ADSP2_CONTROL,
2415                                          ADSP2_CORE_ENA | ADSP2_START,
2416                                          ADSP2_CORE_ENA | ADSP2_START);
2417                 if (ret != 0)
2418                         goto err;
2419
2420                 dsp->running = true;
2421
2422                 mutex_lock(&dsp->pwr_lock);
2423
2424                 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2425                         ret = wm_adsp_buffer_init(dsp);
2426
2427                 mutex_unlock(&dsp->pwr_lock);
2428
2429                 break;
2430
2431         case SND_SOC_DAPM_PRE_PMD:
2432                 /* Log firmware state, it can be useful for analysis */
2433                 wm_adsp2_show_fw_status(dsp);
2434
2435                 mutex_lock(&dsp->pwr_lock);
2436
2437                 dsp->running = false;
2438
2439                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2440                                    ADSP2_CORE_ENA | ADSP2_START, 0);
2441
2442                 /* Make sure DMAs are quiesced */
2443                 regmap_write(dsp->regmap, dsp->base + ADSP2_RDMA_CONFIG_1, 0);
2444                 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_1, 0);
2445                 regmap_write(dsp->regmap, dsp->base + ADSP2_WDMA_CONFIG_2, 0);
2446
2447                 regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2448                                    ADSP2_SYS_ENA, 0);
2449
2450                 if (wm_adsp_fw[dsp->fw].num_caps != 0)
2451                         wm_adsp_buffer_free(dsp);
2452
2453                 mutex_unlock(&dsp->pwr_lock);
2454
2455                 adsp_dbg(dsp, "Execution stopped\n");
2456                 break;
2457
2458         default:
2459                 break;
2460         }
2461
2462         return 0;
2463 err:
2464         regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2465                            ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
2466         return ret;
2467 }
2468 EXPORT_SYMBOL_GPL(wm_adsp2_event);
2469
2470 int wm_adsp2_codec_probe(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2471 {
2472         wm_adsp2_init_debugfs(dsp, codec);
2473
2474         return snd_soc_add_codec_controls(codec,
2475                                           &wm_adsp_fw_controls[dsp->num - 1],
2476                                           1);
2477 }
2478 EXPORT_SYMBOL_GPL(wm_adsp2_codec_probe);
2479
2480 int wm_adsp2_codec_remove(struct wm_adsp *dsp, struct snd_soc_codec *codec)
2481 {
2482         wm_adsp2_cleanup_debugfs(dsp);
2483
2484         return 0;
2485 }
2486 EXPORT_SYMBOL_GPL(wm_adsp2_codec_remove);
2487
2488 int wm_adsp2_init(struct wm_adsp *dsp)
2489 {
2490         int ret;
2491
2492         /*
2493          * Disable the DSP memory by default when in reset for a small
2494          * power saving.
2495          */
2496         ret = regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
2497                                  ADSP2_MEM_ENA, 0);
2498         if (ret != 0) {
2499                 adsp_err(dsp, "Failed to clear memory retention: %d\n", ret);
2500                 return ret;
2501         }
2502
2503         INIT_LIST_HEAD(&dsp->alg_regions);
2504         INIT_LIST_HEAD(&dsp->ctl_list);
2505         INIT_WORK(&dsp->boot_work, wm_adsp2_boot_work);
2506
2507         mutex_init(&dsp->pwr_lock);
2508
2509         return 0;
2510 }
2511 EXPORT_SYMBOL_GPL(wm_adsp2_init);
2512
2513 void wm_adsp2_remove(struct wm_adsp *dsp)
2514 {
2515         struct wm_coeff_ctl *ctl;
2516
2517         while (!list_empty(&dsp->ctl_list)) {
2518                 ctl = list_first_entry(&dsp->ctl_list, struct wm_coeff_ctl,
2519                                         list);
2520                 list_del(&ctl->list);
2521                 wm_adsp_free_ctl_blk(ctl);
2522         }
2523 }
2524 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
2525
2526 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
2527 {
2528         return compr->buf != NULL;
2529 }
2530
2531 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
2532 {
2533         /*
2534          * Note this will be more complex once each DSP can support multiple
2535          * streams
2536          */
2537         if (!compr->dsp->buffer)
2538                 return -EINVAL;
2539
2540         compr->buf = compr->dsp->buffer;
2541         compr->buf->compr = compr;
2542
2543         return 0;
2544 }
2545
2546 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
2547 {
2548         if (!compr)
2549                 return;
2550
2551         /* Wake the poll so it can see buffer is no longer attached */
2552         if (compr->stream)
2553                 snd_compr_fragment_elapsed(compr->stream);
2554
2555         if (wm_adsp_compr_attached(compr)) {
2556                 compr->buf->compr = NULL;
2557                 compr->buf = NULL;
2558         }
2559 }
2560
2561 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
2562 {
2563         struct wm_adsp_compr *compr;
2564         int ret = 0;
2565
2566         mutex_lock(&dsp->pwr_lock);
2567
2568         if (wm_adsp_fw[dsp->fw].num_caps == 0) {
2569                 adsp_err(dsp, "Firmware does not support compressed API\n");
2570                 ret = -ENXIO;
2571                 goto out;
2572         }
2573
2574         if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
2575                 adsp_err(dsp, "Firmware does not support stream direction\n");
2576                 ret = -EINVAL;
2577                 goto out;
2578         }
2579
2580         if (dsp->compr) {
2581                 /* It is expect this limitation will be removed in future */
2582                 adsp_err(dsp, "Only a single stream supported per DSP\n");
2583                 ret = -EBUSY;
2584                 goto out;
2585         }
2586
2587         compr = kzalloc(sizeof(*compr), GFP_KERNEL);
2588         if (!compr) {
2589                 ret = -ENOMEM;
2590                 goto out;
2591         }
2592
2593         compr->dsp = dsp;
2594         compr->stream = stream;
2595
2596         dsp->compr = compr;
2597
2598         stream->runtime->private_data = compr;
2599
2600 out:
2601         mutex_unlock(&dsp->pwr_lock);
2602
2603         return ret;
2604 }
2605 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
2606
2607 int wm_adsp_compr_free(struct snd_compr_stream *stream)
2608 {
2609         struct wm_adsp_compr *compr = stream->runtime->private_data;
2610         struct wm_adsp *dsp = compr->dsp;
2611
2612         mutex_lock(&dsp->pwr_lock);
2613
2614         wm_adsp_compr_detach(compr);
2615         dsp->compr = NULL;
2616
2617         kfree(compr->raw_buf);
2618         kfree(compr);
2619
2620         mutex_unlock(&dsp->pwr_lock);
2621
2622         return 0;
2623 }
2624 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
2625
2626 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
2627                                       struct snd_compr_params *params)
2628 {
2629         struct wm_adsp_compr *compr = stream->runtime->private_data;
2630         struct wm_adsp *dsp = compr->dsp;
2631         const struct wm_adsp_fw_caps *caps;
2632         const struct snd_codec_desc *desc;
2633         int i, j;
2634
2635         if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
2636             params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
2637             params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
2638             params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
2639             params->buffer.fragment_size % WM_ADSP_DATA_WORD_SIZE) {
2640                 adsp_err(dsp, "Invalid buffer fragsize=%d fragments=%d\n",
2641                          params->buffer.fragment_size,
2642                          params->buffer.fragments);
2643
2644                 return -EINVAL;
2645         }
2646
2647         for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
2648                 caps = &wm_adsp_fw[dsp->fw].caps[i];
2649                 desc = &caps->desc;
2650
2651                 if (caps->id != params->codec.id)
2652                         continue;
2653
2654                 if (stream->direction == SND_COMPRESS_PLAYBACK) {
2655                         if (desc->max_ch < params->codec.ch_out)
2656                                 continue;
2657                 } else {
2658                         if (desc->max_ch < params->codec.ch_in)
2659                                 continue;
2660                 }
2661
2662                 if (!(desc->formats & (1 << params->codec.format)))
2663                         continue;
2664
2665                 for (j = 0; j < desc->num_sample_rates; ++j)
2666                         if (desc->sample_rates[j] == params->codec.sample_rate)
2667                                 return 0;
2668         }
2669
2670         adsp_err(dsp, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
2671                  params->codec.id, params->codec.ch_in, params->codec.ch_out,
2672                  params->codec.sample_rate, params->codec.format);
2673         return -EINVAL;
2674 }
2675
2676 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
2677 {
2678         return compr->size.fragment_size / WM_ADSP_DATA_WORD_SIZE;
2679 }
2680
2681 int wm_adsp_compr_set_params(struct snd_compr_stream *stream,
2682                              struct snd_compr_params *params)
2683 {
2684         struct wm_adsp_compr *compr = stream->runtime->private_data;
2685         unsigned int size;
2686         int ret;
2687
2688         ret = wm_adsp_compr_check_params(stream, params);
2689         if (ret)
2690                 return ret;
2691
2692         compr->size = params->buffer;
2693
2694         adsp_dbg(compr->dsp, "fragment_size=%d fragments=%d\n",
2695                  compr->size.fragment_size, compr->size.fragments);
2696
2697         size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
2698         compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
2699         if (!compr->raw_buf)
2700                 return -ENOMEM;
2701
2702         compr->sample_rate = params->codec.sample_rate;
2703
2704         return 0;
2705 }
2706 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
2707
2708 int wm_adsp_compr_get_caps(struct snd_compr_stream *stream,
2709                            struct snd_compr_caps *caps)
2710 {
2711         struct wm_adsp_compr *compr = stream->runtime->private_data;
2712         int fw = compr->dsp->fw;
2713         int i;
2714
2715         if (wm_adsp_fw[fw].caps) {
2716                 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
2717                         caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
2718
2719                 caps->num_codecs = i;
2720                 caps->direction = wm_adsp_fw[fw].compr_direction;
2721
2722                 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
2723                 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
2724                 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
2725                 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
2726         }
2727
2728         return 0;
2729 }
2730 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
2731
2732 static int wm_adsp_read_data_block(struct wm_adsp *dsp, int mem_type,
2733                                    unsigned int mem_addr,
2734                                    unsigned int num_words, u32 *data)
2735 {
2736         struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2737         unsigned int i, reg;
2738         int ret;
2739
2740         if (!mem)
2741                 return -EINVAL;
2742
2743         reg = wm_adsp_region_to_reg(mem, mem_addr);
2744
2745         ret = regmap_raw_read(dsp->regmap, reg, data,
2746                               sizeof(*data) * num_words);
2747         if (ret < 0)
2748                 return ret;
2749
2750         for (i = 0; i < num_words; ++i)
2751                 data[i] = be32_to_cpu(data[i]) & 0x00ffffffu;
2752
2753         return 0;
2754 }
2755
2756 static inline int wm_adsp_read_data_word(struct wm_adsp *dsp, int mem_type,
2757                                          unsigned int mem_addr, u32 *data)
2758 {
2759         return wm_adsp_read_data_block(dsp, mem_type, mem_addr, 1, data);
2760 }
2761
2762 static int wm_adsp_write_data_word(struct wm_adsp *dsp, int mem_type,
2763                                    unsigned int mem_addr, u32 data)
2764 {
2765         struct wm_adsp_region const *mem = wm_adsp_find_region(dsp, mem_type);
2766         unsigned int reg;
2767
2768         if (!mem)
2769                 return -EINVAL;
2770
2771         reg = wm_adsp_region_to_reg(mem, mem_addr);
2772
2773         data = cpu_to_be32(data & 0x00ffffffu);
2774
2775         return regmap_raw_write(dsp->regmap, reg, &data, sizeof(data));
2776 }
2777
2778 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
2779                                       unsigned int field_offset, u32 *data)
2780 {
2781         return wm_adsp_read_data_word(buf->dsp, WMFW_ADSP2_XM,
2782                                       buf->host_buf_ptr + field_offset, data);
2783 }
2784
2785 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
2786                                        unsigned int field_offset, u32 data)
2787 {
2788         return wm_adsp_write_data_word(buf->dsp, WMFW_ADSP2_XM,
2789                                        buf->host_buf_ptr + field_offset, data);
2790 }
2791
2792 static int wm_adsp_buffer_locate(struct wm_adsp_compr_buf *buf)
2793 {
2794         struct wm_adsp_alg_region *alg_region;
2795         struct wm_adsp *dsp = buf->dsp;
2796         u32 xmalg, addr, magic;
2797         int i, ret;
2798
2799         alg_region = wm_adsp_find_alg_region(dsp, WMFW_ADSP2_XM, dsp->fw_id);
2800         xmalg = sizeof(struct wm_adsp_system_config_xm_hdr) / sizeof(__be32);
2801
2802         addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
2803         ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr, &magic);
2804         if (ret < 0)
2805                 return ret;
2806
2807         if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
2808                 return -EINVAL;
2809
2810         addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
2811         for (i = 0; i < 5; ++i) {
2812                 ret = wm_adsp_read_data_word(dsp, WMFW_ADSP2_XM, addr,
2813                                              &buf->host_buf_ptr);
2814                 if (ret < 0)
2815                         return ret;
2816
2817                 if (buf->host_buf_ptr)
2818                         break;
2819
2820                 usleep_range(1000, 2000);
2821         }
2822
2823         if (!buf->host_buf_ptr)
2824                 return -EIO;
2825
2826         adsp_dbg(dsp, "host_buf_ptr=%x\n", buf->host_buf_ptr);
2827
2828         return 0;
2829 }
2830
2831 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
2832 {
2833         const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
2834         struct wm_adsp_buffer_region *region;
2835         u32 offset = 0;
2836         int i, ret;
2837
2838         for (i = 0; i < caps->num_regions; ++i) {
2839                 region = &buf->regions[i];
2840
2841                 region->offset = offset;
2842                 region->mem_type = caps->region_defs[i].mem_type;
2843
2844                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
2845                                           &region->base_addr);
2846                 if (ret < 0)
2847                         return ret;
2848
2849                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
2850                                           &offset);
2851                 if (ret < 0)
2852                         return ret;
2853
2854                 region->cumulative_size = offset;
2855
2856                 adsp_dbg(buf->dsp,
2857                          "region=%d type=%d base=%04x off=%04x size=%04x\n",
2858                          i, region->mem_type, region->base_addr,
2859                          region->offset, region->cumulative_size);
2860         }
2861
2862         return 0;
2863 }
2864
2865 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
2866 {
2867         struct wm_adsp_compr_buf *buf;
2868         int ret;
2869
2870         buf = kzalloc(sizeof(*buf), GFP_KERNEL);
2871         if (!buf)
2872                 return -ENOMEM;
2873
2874         buf->dsp = dsp;
2875         buf->read_index = -1;
2876         buf->irq_count = 0xFFFFFFFF;
2877
2878         ret = wm_adsp_buffer_locate(buf);
2879         if (ret < 0) {
2880                 adsp_err(dsp, "Failed to acquire host buffer: %d\n", ret);
2881                 goto err_buffer;
2882         }
2883
2884         buf->regions = kcalloc(wm_adsp_fw[dsp->fw].caps->num_regions,
2885                                sizeof(*buf->regions), GFP_KERNEL);
2886         if (!buf->regions) {
2887                 ret = -ENOMEM;
2888                 goto err_buffer;
2889         }
2890
2891         ret = wm_adsp_buffer_populate(buf);
2892         if (ret < 0) {
2893                 adsp_err(dsp, "Failed to populate host buffer: %d\n", ret);
2894                 goto err_regions;
2895         }
2896
2897         dsp->buffer = buf;
2898
2899         return 0;
2900
2901 err_regions:
2902         kfree(buf->regions);
2903 err_buffer:
2904         kfree(buf);
2905         return ret;
2906 }
2907
2908 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
2909 {
2910         if (dsp->buffer) {
2911                 wm_adsp_compr_detach(dsp->buffer->compr);
2912
2913                 kfree(dsp->buffer->regions);
2914                 kfree(dsp->buffer);
2915
2916                 dsp->buffer = NULL;
2917         }
2918
2919         return 0;
2920 }
2921
2922 int wm_adsp_compr_trigger(struct snd_compr_stream *stream, int cmd)
2923 {
2924         struct wm_adsp_compr *compr = stream->runtime->private_data;
2925         struct wm_adsp *dsp = compr->dsp;
2926         int ret = 0;
2927
2928         adsp_dbg(dsp, "Trigger: %d\n", cmd);
2929
2930         mutex_lock(&dsp->pwr_lock);
2931
2932         switch (cmd) {
2933         case SNDRV_PCM_TRIGGER_START:
2934                 if (wm_adsp_compr_attached(compr))
2935                         break;
2936
2937                 ret = wm_adsp_compr_attach(compr);
2938                 if (ret < 0) {
2939                         adsp_err(dsp, "Failed to link buffer and stream: %d\n",
2940                                  ret);
2941                         break;
2942                 }
2943
2944                 /* Trigger the IRQ at one fragment of data */
2945                 ret = wm_adsp_buffer_write(compr->buf,
2946                                            HOST_BUFFER_FIELD(high_water_mark),
2947                                            wm_adsp_compr_frag_words(compr));
2948                 if (ret < 0) {
2949                         adsp_err(dsp, "Failed to set high water mark: %d\n",
2950                                  ret);
2951                         break;
2952                 }
2953                 break;
2954         case SNDRV_PCM_TRIGGER_STOP:
2955                 break;
2956         default:
2957                 ret = -EINVAL;
2958                 break;
2959         }
2960
2961         mutex_unlock(&dsp->pwr_lock);
2962
2963         return ret;
2964 }
2965 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
2966
2967 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
2968 {
2969         int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
2970
2971         return buf->regions[last_region].cumulative_size;
2972 }
2973
2974 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
2975 {
2976         u32 next_read_index, next_write_index;
2977         int write_index, read_index, avail;
2978         int ret;
2979
2980         /* Only sync read index if we haven't already read a valid index */
2981         if (buf->read_index < 0) {
2982                 ret = wm_adsp_buffer_read(buf,
2983                                 HOST_BUFFER_FIELD(next_read_index),
2984                                 &next_read_index);
2985                 if (ret < 0)
2986                         return ret;
2987
2988                 read_index = sign_extend32(next_read_index, 23);
2989
2990                 if (read_index < 0) {
2991                         adsp_dbg(buf->dsp, "Avail check on unstarted stream\n");
2992                         return 0;
2993                 }
2994
2995                 buf->read_index = read_index;
2996         }
2997
2998         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
2999                         &next_write_index);
3000         if (ret < 0)
3001                 return ret;
3002
3003         write_index = sign_extend32(next_write_index, 23);
3004
3005         avail = write_index - buf->read_index;
3006         if (avail < 0)
3007                 avail += wm_adsp_buffer_size(buf);
3008
3009         adsp_dbg(buf->dsp, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
3010                  buf->read_index, write_index, avail * WM_ADSP_DATA_WORD_SIZE);
3011
3012         buf->avail = avail;
3013
3014         return 0;
3015 }
3016
3017 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
3018 {
3019         int ret;
3020
3021         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
3022         if (ret < 0) {
3023                 adsp_err(buf->dsp, "Failed to check buffer error: %d\n", ret);
3024                 return ret;
3025         }
3026         if (buf->error != 0) {
3027                 adsp_err(buf->dsp, "Buffer error occurred: %d\n", buf->error);
3028                 return -EIO;
3029         }
3030
3031         return 0;
3032 }
3033
3034 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
3035 {
3036         struct wm_adsp_compr_buf *buf;
3037         struct wm_adsp_compr *compr;
3038         int ret = 0;
3039
3040         mutex_lock(&dsp->pwr_lock);
3041
3042         buf = dsp->buffer;
3043         compr = dsp->compr;
3044
3045         if (!buf) {
3046                 ret = -ENODEV;
3047                 goto out;
3048         }
3049
3050         adsp_dbg(dsp, "Handling buffer IRQ\n");
3051
3052         ret = wm_adsp_buffer_get_error(buf);
3053         if (ret < 0)
3054                 goto out_notify; /* Wake poll to report error */
3055
3056         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
3057                                   &buf->irq_count);
3058         if (ret < 0) {
3059                 adsp_err(dsp, "Failed to get irq_count: %d\n", ret);
3060                 goto out;
3061         }
3062
3063         ret = wm_adsp_buffer_update_avail(buf);
3064         if (ret < 0) {
3065                 adsp_err(dsp, "Error reading avail: %d\n", ret);
3066                 goto out;
3067         }
3068
3069         if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
3070                 ret = WM_ADSP_COMPR_VOICE_TRIGGER;
3071
3072 out_notify:
3073         if (compr && compr->stream)
3074                 snd_compr_fragment_elapsed(compr->stream);
3075
3076 out:
3077         mutex_unlock(&dsp->pwr_lock);
3078
3079         return ret;
3080 }
3081 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
3082
3083 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
3084 {
3085         if (buf->irq_count & 0x01)
3086                 return 0;
3087
3088         adsp_dbg(buf->dsp, "Enable IRQ(0x%x) for next fragment\n",
3089                  buf->irq_count);
3090
3091         buf->irq_count |= 0x01;
3092
3093         return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
3094                                     buf->irq_count);
3095 }
3096
3097 int wm_adsp_compr_pointer(struct snd_compr_stream *stream,
3098                           struct snd_compr_tstamp *tstamp)
3099 {
3100         struct wm_adsp_compr *compr = stream->runtime->private_data;
3101         struct wm_adsp *dsp = compr->dsp;
3102         struct wm_adsp_compr_buf *buf;
3103         int ret = 0;
3104
3105         adsp_dbg(dsp, "Pointer request\n");
3106
3107         mutex_lock(&dsp->pwr_lock);
3108
3109         buf = compr->buf;
3110
3111         if (!compr->buf || compr->buf->error) {
3112                 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
3113                 ret = -EIO;
3114                 goto out;
3115         }
3116
3117         if (buf->avail < wm_adsp_compr_frag_words(compr)) {
3118                 ret = wm_adsp_buffer_update_avail(buf);
3119                 if (ret < 0) {
3120                         adsp_err(dsp, "Error reading avail: %d\n", ret);
3121                         goto out;
3122                 }
3123
3124                 /*
3125                  * If we really have less than 1 fragment available tell the
3126                  * DSP to inform us once a whole fragment is available.
3127                  */
3128                 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
3129                         ret = wm_adsp_buffer_get_error(buf);
3130                         if (ret < 0) {
3131                                 if (compr->buf->error)
3132                                         snd_compr_stop_error(stream,
3133                                                         SNDRV_PCM_STATE_XRUN);
3134                                 goto out;
3135                         }
3136
3137                         ret = wm_adsp_buffer_reenable_irq(buf);
3138                         if (ret < 0) {
3139                                 adsp_err(dsp,
3140                                          "Failed to re-enable buffer IRQ: %d\n",
3141                                          ret);
3142                                 goto out;
3143                         }
3144                 }
3145         }
3146
3147         tstamp->copied_total = compr->copied_total;
3148         tstamp->copied_total += buf->avail * WM_ADSP_DATA_WORD_SIZE;
3149         tstamp->sampling_rate = compr->sample_rate;
3150
3151 out:
3152         mutex_unlock(&dsp->pwr_lock);
3153
3154         return ret;
3155 }
3156 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
3157
3158 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
3159 {
3160         struct wm_adsp_compr_buf *buf = compr->buf;
3161         u8 *pack_in = (u8 *)compr->raw_buf;
3162         u8 *pack_out = (u8 *)compr->raw_buf;
3163         unsigned int adsp_addr;
3164         int mem_type, nwords, max_read;
3165         int i, j, ret;
3166
3167         /* Calculate read parameters */
3168         for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
3169                 if (buf->read_index < buf->regions[i].cumulative_size)
3170                         break;
3171
3172         if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
3173                 return -EINVAL;
3174
3175         mem_type = buf->regions[i].mem_type;
3176         adsp_addr = buf->regions[i].base_addr +
3177                     (buf->read_index - buf->regions[i].offset);
3178
3179         max_read = wm_adsp_compr_frag_words(compr);
3180         nwords = buf->regions[i].cumulative_size - buf->read_index;
3181
3182         if (nwords > target)
3183                 nwords = target;
3184         if (nwords > buf->avail)
3185                 nwords = buf->avail;
3186         if (nwords > max_read)
3187                 nwords = max_read;
3188         if (!nwords)
3189                 return 0;
3190
3191         /* Read data from DSP */
3192         ret = wm_adsp_read_data_block(buf->dsp, mem_type, adsp_addr,
3193                                       nwords, compr->raw_buf);
3194         if (ret < 0)
3195                 return ret;
3196
3197         /* Remove the padding bytes from the data read from the DSP */
3198         for (i = 0; i < nwords; i++) {
3199                 for (j = 0; j < WM_ADSP_DATA_WORD_SIZE; j++)
3200                         *pack_out++ = *pack_in++;
3201
3202                 pack_in += sizeof(*(compr->raw_buf)) - WM_ADSP_DATA_WORD_SIZE;
3203         }
3204
3205         /* update read index to account for words read */
3206         buf->read_index += nwords;
3207         if (buf->read_index == wm_adsp_buffer_size(buf))
3208                 buf->read_index = 0;
3209
3210         ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
3211                                    buf->read_index);
3212         if (ret < 0)
3213                 return ret;
3214
3215         /* update avail to account for words read */
3216         buf->avail -= nwords;
3217
3218         return nwords;
3219 }
3220
3221 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
3222                               char __user *buf, size_t count)
3223 {
3224         struct wm_adsp *dsp = compr->dsp;
3225         int ntotal = 0;
3226         int nwords, nbytes;
3227
3228         adsp_dbg(dsp, "Requested read of %zu bytes\n", count);
3229
3230         if (!compr->buf || compr->buf->error) {
3231                 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
3232                 return -EIO;
3233         }
3234
3235         count /= WM_ADSP_DATA_WORD_SIZE;
3236
3237         do {
3238                 nwords = wm_adsp_buffer_capture_block(compr, count);
3239                 if (nwords < 0) {
3240                         adsp_err(dsp, "Failed to capture block: %d\n", nwords);
3241                         return nwords;
3242                 }
3243
3244                 nbytes = nwords * WM_ADSP_DATA_WORD_SIZE;
3245
3246                 adsp_dbg(dsp, "Read %d bytes\n", nbytes);
3247
3248                 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
3249                         adsp_err(dsp, "Failed to copy data to user: %d, %d\n",
3250                                  ntotal, nbytes);
3251                         return -EFAULT;
3252                 }
3253
3254                 count -= nwords;
3255                 ntotal += nbytes;
3256         } while (nwords > 0 && count > 0);
3257
3258         compr->copied_total += ntotal;
3259
3260         return ntotal;
3261 }
3262
3263 int wm_adsp_compr_copy(struct snd_compr_stream *stream, char __user *buf,
3264                        size_t count)
3265 {
3266         struct wm_adsp_compr *compr = stream->runtime->private_data;
3267         struct wm_adsp *dsp = compr->dsp;
3268         int ret;
3269
3270         mutex_lock(&dsp->pwr_lock);
3271
3272         if (stream->direction == SND_COMPRESS_CAPTURE)
3273                 ret = wm_adsp_compr_read(compr, buf, count);
3274         else
3275                 ret = -ENOTSUPP;
3276
3277         mutex_unlock(&dsp->pwr_lock);
3278
3279         return ret;
3280 }
3281 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
3282
3283 MODULE_LICENSE("GPL v2");