sound/soc/codecs/wm_adsp.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * wm_adsp.c  --  Wolfson ADSP support
   4  *
   5  * Copyright 2012 Wolfson Microelectronics plc
   6  *
   7  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   8  */
   9
  10 #include <linux/ctype.h>
  11 #include <linux/module.h>
  12 #include <linux/moduleparam.h>
  13 #include <linux/init.h>
  14 #include <linux/delay.h>
  15 #include <linux/firmware.h>
  16 #include <linux/list.h>
  17 #include <linux/pm.h>
  18 #include <linux/regmap.h>
  19 #include <linux/regulator/consumer.h>
  20 #include <linux/slab.h>
  21 #include <linux/vmalloc.h>
  22 #include <linux/workqueue.h>
  23 #include <linux/debugfs.h>
  24 #include <sound/core.h>
  25 #include <sound/pcm.h>
  26 #include <sound/pcm_params.h>
  27 #include <sound/soc.h>
  28 #include <sound/jack.h>
  29 #include <sound/initval.h>
  30 #include <sound/tlv.h>
  31
  32 #include "wm_adsp.h"
  33
  34 #define adsp_crit(_dsp, fmt, ...) \
  35         dev_crit(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
  36 #define adsp_err(_dsp, fmt, ...) \
  37         dev_err(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
  38 #define adsp_warn(_dsp, fmt, ...) \
  39         dev_warn(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
  40 #define adsp_info(_dsp, fmt, ...) \
  41         dev_info(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
  42 #define adsp_dbg(_dsp, fmt, ...) \
  43         dev_dbg(_dsp->cs_dsp.dev, "%s: " fmt, _dsp->cs_dsp.name, ##__VA_ARGS__)
  44
  45 #define compr_err(_obj, fmt, ...) \
  46         adsp_err(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
  47                  ##__VA_ARGS__)
  48 #define compr_dbg(_obj, fmt, ...) \
  49         adsp_dbg(_obj->dsp, "%s: " fmt, _obj->name ? _obj->name : "legacy", \
  50                  ##__VA_ARGS__)
  51
  52 #define ADSP_MAX_STD_CTRL_SIZE               512
  53
  54 static const struct cs_dsp_client_ops wm_adsp1_client_ops;
  55 static const struct cs_dsp_client_ops wm_adsp2_client_ops;
  56
  57 #define WM_ADSP_FW_MBC_VSS  0
  58 #define WM_ADSP_FW_HIFI     1
  59 #define WM_ADSP_FW_TX       2
  60 #define WM_ADSP_FW_TX_SPK   3
  61 #define WM_ADSP_FW_RX       4
  62 #define WM_ADSP_FW_RX_ANC   5
  63 #define WM_ADSP_FW_CTRL     6
  64 #define WM_ADSP_FW_ASR      7
  65 #define WM_ADSP_FW_TRACE    8
  66 #define WM_ADSP_FW_SPK_PROT 9
  67 #define WM_ADSP_FW_SPK_CALI 10
  68 #define WM_ADSP_FW_SPK_DIAG 11
  69 #define WM_ADSP_FW_MISC     12
  70
  71 #define WM_ADSP_NUM_FW      13
  72
  73 static const char *wm_adsp_fw_text[WM_ADSP_NUM_FW] = {
  74         [WM_ADSP_FW_MBC_VSS] =  "MBC/VSS",
  75         [WM_ADSP_FW_HIFI] =     "MasterHiFi",
  76         [WM_ADSP_FW_TX] =       "Tx",
  77         [WM_ADSP_FW_TX_SPK] =   "Tx Speaker",
  78         [WM_ADSP_FW_RX] =       "Rx",
  79         [WM_ADSP_FW_RX_ANC] =   "Rx ANC",
  80         [WM_ADSP_FW_CTRL] =     "Voice Ctrl",
  81         [WM_ADSP_FW_ASR] =      "ASR Assist",
  82         [WM_ADSP_FW_TRACE] =    "Dbg Trace",
  83         [WM_ADSP_FW_SPK_PROT] = "Protection",
  84         [WM_ADSP_FW_SPK_CALI] = "Calibration",
  85         [WM_ADSP_FW_SPK_DIAG] = "Diagnostic",
  86         [WM_ADSP_FW_MISC] =     "Misc",
  87 };
  88
  89 struct wm_adsp_system_config_xm_hdr {
  90         __be32 sys_enable;
  91         __be32 fw_id;
  92         __be32 fw_rev;
  93         __be32 boot_status;
  94         __be32 watchdog;
  95         __be32 dma_buffer_size;
  96         __be32 rdma[6];
  97         __be32 wdma[8];
  98         __be32 build_job_name[3];
  99         __be32 build_job_number;
 100 } __packed;
 101
 102 struct wm_halo_system_config_xm_hdr {
 103         __be32 halo_heartbeat;
 104         __be32 build_job_name[3];
 105         __be32 build_job_number;
 106 } __packed;
 107
 108 struct wm_adsp_alg_xm_struct {
 109         __be32 magic;
 110         __be32 smoothing;
 111         __be32 threshold;
 112         __be32 host_buf_ptr;
 113         __be32 start_seq;
 114         __be32 high_water_mark;
 115         __be32 low_water_mark;
 116         __be64 smoothed_power;
 117 } __packed;
 118
 119 struct wm_adsp_host_buf_coeff_v1 {
 120         __be32 host_buf_ptr;            /* Host buffer pointer */
 121         __be32 versions;                /* Version numbers */
 122         __be32 name[4];                 /* The buffer name */
 123 } __packed;
 124
 125 struct wm_adsp_buffer {
 126         __be32 buf1_base;               /* Base addr of first buffer area */
 127         __be32 buf1_size;               /* Size of buf1 area in DSP words */
 128         __be32 buf2_base;               /* Base addr of 2nd buffer area */
 129         __be32 buf1_buf2_size;          /* Size of buf1+buf2 in DSP words */
 130         __be32 buf3_base;               /* Base addr of buf3 area */
 131         __be32 buf_total_size;          /* Size of buf1+buf2+buf3 in DSP words */
 132         __be32 high_water_mark;         /* Point at which IRQ is asserted */
 133         __be32 irq_count;               /* bits 1-31 count IRQ assertions */
 134         __be32 irq_ack;                 /* acked IRQ count, bit 0 enables IRQ */
 135         __be32 next_write_index;        /* word index of next write */
 136         __be32 next_read_index;         /* word index of next read */
 137         __be32 error;                   /* error if any */
 138         __be32 oldest_block_index;      /* word index of oldest surviving */
 139         __be32 requested_rewind;        /* how many blocks rewind was done */
 140         __be32 reserved_space;          /* internal */
 141         __be32 min_free;                /* min free space since stream start */
 142         __be32 blocks_written[2];       /* total blocks written (64 bit) */
 143         __be32 words_written[2];        /* total words written (64 bit) */
 144 } __packed;
 145
 146 struct wm_adsp_compr;
 147
 148 struct wm_adsp_compr_buf {
 149         struct list_head list;
 150         struct wm_adsp *dsp;
 151         struct wm_adsp_compr *compr;
 152
 153         struct wm_adsp_buffer_region *regions;
 154         u32 host_buf_ptr;
 155
 156         u32 error;
 157         u32 irq_count;
 158         int read_index;
 159         int avail;
 160         int host_buf_mem_type;
 161
 162         char *name;
 163 };
 164
 165 struct wm_adsp_compr {
 166         struct list_head list;
 167         struct wm_adsp *dsp;
 168         struct wm_adsp_compr_buf *buf;
 169
 170         struct snd_compr_stream *stream;
 171         struct snd_compressed_buffer size;
 172
 173         u32 *raw_buf;
 174         unsigned int copied_total;
 175
 176         unsigned int sample_rate;
 177
 178         const char *name;
 179 };
 180
 181 #define WM_ADSP_MIN_FRAGMENTS          1
 182 #define WM_ADSP_MAX_FRAGMENTS          256
 183 #define WM_ADSP_MIN_FRAGMENT_SIZE      (16 * CS_DSP_DATA_WORD_SIZE)
 184 #define WM_ADSP_MAX_FRAGMENT_SIZE      (4096 * CS_DSP_DATA_WORD_SIZE)
 185
 186 #define WM_ADSP_ALG_XM_STRUCT_MAGIC    0x49aec7
 187
 188 #define HOST_BUFFER_FIELD(field) \
 189         (offsetof(struct wm_adsp_buffer, field) / sizeof(__be32))
 190
 191 #define ALG_XM_FIELD(field) \
 192         (offsetof(struct wm_adsp_alg_xm_struct, field) / sizeof(__be32))
 193
 194 #define HOST_BUF_COEFF_SUPPORTED_COMPAT_VER     1
 195
 196 #define HOST_BUF_COEFF_COMPAT_VER_MASK          0xFF00
 197 #define HOST_BUF_COEFF_COMPAT_VER_SHIFT         8
 198
 199 static int wm_adsp_buffer_init(struct wm_adsp *dsp);
 200 static int wm_adsp_buffer_free(struct wm_adsp *dsp);
 201
 202 struct wm_adsp_buffer_region {
 203         unsigned int offset;
 204         unsigned int cumulative_size;
 205         unsigned int mem_type;
 206         unsigned int base_addr;
 207 };
 208
 209 struct wm_adsp_buffer_region_def {
 210         unsigned int mem_type;
 211         unsigned int base_offset;
 212         unsigned int size_offset;
 213 };
 214
 215 static const struct wm_adsp_buffer_region_def default_regions[] = {
 216         {
 217                 .mem_type = WMFW_ADSP2_XM,
 218                 .base_offset = HOST_BUFFER_FIELD(buf1_base),
 219                 .size_offset = HOST_BUFFER_FIELD(buf1_size),
 220         },
 221         {
 222                 .mem_type = WMFW_ADSP2_XM,
 223                 .base_offset = HOST_BUFFER_FIELD(buf2_base),
 224                 .size_offset = HOST_BUFFER_FIELD(buf1_buf2_size),
 225         },
 226         {
 227                 .mem_type = WMFW_ADSP2_YM,
 228                 .base_offset = HOST_BUFFER_FIELD(buf3_base),
 229                 .size_offset = HOST_BUFFER_FIELD(buf_total_size),
 230         },
 231 };
 232
 233 struct wm_adsp_fw_caps {
 234         u32 id;
 235         struct snd_codec_desc desc;
 236         int num_regions;
 237         const struct wm_adsp_buffer_region_def *region_defs;
 238 };
 239
 240 static const struct wm_adsp_fw_caps ctrl_caps[] = {
 241         {
 242                 .id = SND_AUDIOCODEC_BESPOKE,
 243                 .desc = {
 244                         .max_ch = 8,
 245                         .sample_rates = { 16000 },
 246                         .num_sample_rates = 1,
 247                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 248                 },
 249                 .num_regions = ARRAY_SIZE(default_regions),
 250                 .region_defs = default_regions,
 251         },
 252 };
 253
 254 static const struct wm_adsp_fw_caps trace_caps[] = {
 255         {
 256                 .id = SND_AUDIOCODEC_BESPOKE,
 257                 .desc = {
 258                         .max_ch = 8,
 259                         .sample_rates = {
 260                                 4000, 8000, 11025, 12000, 16000, 22050,
 261                                 24000, 32000, 44100, 48000, 64000, 88200,
 262                                 96000, 176400, 192000
 263                         },
 264                         .num_sample_rates = 15,
 265                         .formats = SNDRV_PCM_FMTBIT_S16_LE,
 266                 },
 267                 .num_regions = ARRAY_SIZE(default_regions),
 268                 .region_defs = default_regions,
 269         },
 270 };
 271
 272 static const struct {
 273         const char *file;
 274         int compr_direction;
 275         int num_caps;
 276         const struct wm_adsp_fw_caps *caps;
 277         bool voice_trigger;
 278 } wm_adsp_fw[WM_ADSP_NUM_FW] = {
 279         [WM_ADSP_FW_MBC_VSS] =  { .file = "mbc-vss" },
 280         [WM_ADSP_FW_HIFI] =     { .file = "hifi" },
 281         [WM_ADSP_FW_TX] =       { .file = "tx" },
 282         [WM_ADSP_FW_TX_SPK] =   { .file = "tx-spk" },
 283         [WM_ADSP_FW_RX] =       { .file = "rx" },
 284         [WM_ADSP_FW_RX_ANC] =   { .file = "rx-anc" },
 285         [WM_ADSP_FW_CTRL] =     {
 286                 .file = "ctrl",
 287                 .compr_direction = SND_COMPRESS_CAPTURE,
 288                 .num_caps = ARRAY_SIZE(ctrl_caps),
 289                 .caps = ctrl_caps,
 290                 .voice_trigger = true,
 291         },
 292         [WM_ADSP_FW_ASR] =      { .file = "asr" },
 293         [WM_ADSP_FW_TRACE] =    {
 294                 .file = "trace",
 295                 .compr_direction = SND_COMPRESS_CAPTURE,
 296                 .num_caps = ARRAY_SIZE(trace_caps),
 297                 .caps = trace_caps,
 298         },
 299         [WM_ADSP_FW_SPK_PROT] = {
 300                 .file = "spk-prot",
 301                 .compr_direction = SND_COMPRESS_CAPTURE,
 302                 .num_caps = ARRAY_SIZE(trace_caps),
 303                 .caps = trace_caps,
 304         },
 305         [WM_ADSP_FW_SPK_CALI] = { .file = "spk-cali" },
 306         [WM_ADSP_FW_SPK_DIAG] = { .file = "spk-diag" },
 307         [WM_ADSP_FW_MISC] =     { .file = "misc" },
 308 };
 309
 310 struct wm_coeff_ctl {
 311         const char *name;
 312         struct cs_dsp_coeff_ctl *cs_ctl;
 313         struct soc_bytes_ext bytes_ext;
 314         struct work_struct work;
 315 };
 316
 317 int wm_adsp_fw_get(struct snd_kcontrol *kcontrol,
 318                    struct snd_ctl_elem_value *ucontrol)
 319 {
 320         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 321         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 322         struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
 323
 324         ucontrol->value.enumerated.item[0] = dsp[e->shift_l].fw;
 325
 326         return 0;
 327 }
 328 EXPORT_SYMBOL_GPL(wm_adsp_fw_get);
 329
 330 int wm_adsp_fw_put(struct snd_kcontrol *kcontrol,
 331                    struct snd_ctl_elem_value *ucontrol)
 332 {
 333         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 334         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 335         struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
 336         int ret = 1;
 337
 338         if (ucontrol->value.enumerated.item[0] == dsp[e->shift_l].fw)
 339                 return 0;
 340
 341         if (ucontrol->value.enumerated.item[0] >= WM_ADSP_NUM_FW)
 342                 return -EINVAL;
 343
 344         mutex_lock(&dsp[e->shift_l].cs_dsp.pwr_lock);
 345
 346         if (dsp[e->shift_l].cs_dsp.booted || !list_empty(&dsp[e->shift_l].compr_list))
 347                 ret = -EBUSY;
 348         else
 349                 dsp[e->shift_l].fw = ucontrol->value.enumerated.item[0];
 350
 351         mutex_unlock(&dsp[e->shift_l].cs_dsp.pwr_lock);
 352
 353         return ret;
 354 }
 355 EXPORT_SYMBOL_GPL(wm_adsp_fw_put);
 356
 357 const struct soc_enum wm_adsp_fw_enum[] = {
 358         SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 359         SOC_ENUM_SINGLE(0, 1, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 360         SOC_ENUM_SINGLE(0, 2, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 361         SOC_ENUM_SINGLE(0, 3, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 362         SOC_ENUM_SINGLE(0, 4, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 363         SOC_ENUM_SINGLE(0, 5, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 364         SOC_ENUM_SINGLE(0, 6, ARRAY_SIZE(wm_adsp_fw_text), wm_adsp_fw_text),
 365 };
 366 EXPORT_SYMBOL_GPL(wm_adsp_fw_enum);
 367
 368 static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
 369 {
 370         return container_of(ext, struct wm_coeff_ctl, bytes_ext);
 371 }
 372
 373 static int wm_coeff_info(struct snd_kcontrol *kctl,
 374                          struct snd_ctl_elem_info *uinfo)
 375 {
 376         struct soc_bytes_ext *bytes_ext =
 377                 (struct soc_bytes_ext *)kctl->private_value;
 378         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 379         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 380
 381         switch (cs_ctl->type) {
 382         case WMFW_CTL_TYPE_ACKED:
 383                 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 384                 uinfo->value.integer.min = CS_DSP_ACKED_CTL_MIN_VALUE;
 385                 uinfo->value.integer.max = CS_DSP_ACKED_CTL_MAX_VALUE;
 386                 uinfo->value.integer.step = 1;
 387                 uinfo->count = 1;
 388                 break;
 389         default:
 390                 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 391                 uinfo->count = cs_ctl->len;
 392                 break;
 393         }
 394
 395         return 0;
 396 }
 397
 398 static int wm_coeff_put(struct snd_kcontrol *kctl,
 399                         struct snd_ctl_elem_value *ucontrol)
 400 {
 401         struct soc_bytes_ext *bytes_ext =
 402                 (struct soc_bytes_ext *)kctl->private_value;
 403         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 404         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 405         char *p = ucontrol->value.bytes.data;
 406         int ret = 0;
 407
 408         mutex_lock(&cs_ctl->dsp->pwr_lock);
 409         ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, p, cs_ctl->len);
 410         mutex_unlock(&cs_ctl->dsp->pwr_lock);
 411
 412         return ret;
 413 }
 414
 415 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
 416                             const unsigned int __user *bytes, unsigned int size)
 417 {
 418         struct soc_bytes_ext *bytes_ext =
 419                 (struct soc_bytes_ext *)kctl->private_value;
 420         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 421         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 422         void *scratch;
 423         int ret = 0;
 424
 425         scratch = vmalloc(size);
 426         if (!scratch)
 427                 return -ENOMEM;
 428
 429         if (copy_from_user(scratch, bytes, size)) {
 430                 ret = -EFAULT;
 431         } else {
 432                 mutex_lock(&cs_ctl->dsp->pwr_lock);
 433                 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, scratch, size);
 434                 mutex_unlock(&cs_ctl->dsp->pwr_lock);
 435         }
 436         vfree(scratch);
 437
 438         return ret;
 439 }
 440
 441 static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
 442                               struct snd_ctl_elem_value *ucontrol)
 443 {
 444         struct soc_bytes_ext *bytes_ext =
 445                 (struct soc_bytes_ext *)kctl->private_value;
 446         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 447         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 448         unsigned int val = ucontrol->value.integer.value[0];
 449         int ret;
 450
 451         if (val == 0)
 452                 return 0;       /* 0 means no event */
 453
 454         mutex_lock(&cs_ctl->dsp->pwr_lock);
 455
 456         if (cs_ctl->enabled)
 457                 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val);
 458         else
 459                 ret = -EPERM;
 460
 461         mutex_unlock(&cs_ctl->dsp->pwr_lock);
 462
 463         if (ret < 0)
 464                 return ret;
 465
 466         return 1;
 467 }
 468
 469 static int wm_coeff_get(struct snd_kcontrol *kctl,
 470                         struct snd_ctl_elem_value *ucontrol)
 471 {
 472         struct soc_bytes_ext *bytes_ext =
 473                 (struct soc_bytes_ext *)kctl->private_value;
 474         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 475         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 476         char *p = ucontrol->value.bytes.data;
 477         int ret;
 478
 479         mutex_lock(&cs_ctl->dsp->pwr_lock);
 480         ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len);
 481         mutex_unlock(&cs_ctl->dsp->pwr_lock);
 482
 483         return ret;
 484 }
 485
 486 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
 487                             unsigned int __user *bytes, unsigned int size)
 488 {
 489         struct soc_bytes_ext *bytes_ext =
 490                 (struct soc_bytes_ext *)kctl->private_value;
 491         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 492         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 493         int ret = 0;
 494
 495         mutex_lock(&cs_ctl->dsp->pwr_lock);
 496
 497         ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size);
 498
 499         if (!ret && copy_to_user(bytes, cs_ctl->cache, size))
 500                 ret = -EFAULT;
 501
 502         mutex_unlock(&cs_ctl->dsp->pwr_lock);
 503
 504         return ret;
 505 }
 506
 507 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol,
 508                               struct snd_ctl_elem_value *ucontrol)
 509 {
 510         /*
 511          * Although it's not useful to read an acked control, we must satisfy
 512          * user-side assumptions that all controls are readable and that a
 513          * write of the same value should be filtered out (it's valid to send
 514          * the same event number again to the firmware). We therefore return 0,
 515          * meaning "no event" so valid event numbers will always be a change
 516          */
 517         ucontrol->value.integer.value[0] = 0;
 518
 519         return 0;
 520 }
 521
 522 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
 523 {
 524         unsigned int out, rd, wr, vol;
 525
 526         if (len > ADSP_MAX_STD_CTRL_SIZE) {
 527                 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 528                 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
 529                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 530
 531                 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
 532         } else {
 533                 rd = SNDRV_CTL_ELEM_ACCESS_READ;
 534                 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
 535                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 536
 537                 out = 0;
 538         }
 539
 540         if (in) {
 541                 out |= rd;
 542                 if (in & WMFW_CTL_FLAG_WRITEABLE)
 543                         out |= wr;
 544                 if (in & WMFW_CTL_FLAG_VOLATILE)
 545                         out |= vol;
 546         } else {
 547                 out |= rd | wr | vol;
 548         }
 549
 550         return out;
 551 }
 552
 553 static void wm_adsp_ctl_work(struct work_struct *work)
 554 {
 555         struct wm_coeff_ctl *ctl = container_of(work,
 556                                                 struct wm_coeff_ctl,
 557                                                 work);
 558         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 559         struct wm_adsp *dsp = container_of(cs_ctl->dsp,
 560                                            struct wm_adsp,
 561                                            cs_dsp);
 562         struct snd_kcontrol_new *kcontrol;
 563
 564         kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
 565         if (!kcontrol)
 566                 return;
 567
 568         kcontrol->name = ctl->name;
 569         kcontrol->info = wm_coeff_info;
 570         kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 571         kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
 572         kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
 573         kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len);
 574
 575         switch (cs_ctl->type) {
 576         case WMFW_CTL_TYPE_ACKED:
 577                 kcontrol->get = wm_coeff_get_acked;
 578                 kcontrol->put = wm_coeff_put_acked;
 579                 break;
 580         default:
 581                 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
 582                         ctl->bytes_ext.max = cs_ctl->len;
 583                         ctl->bytes_ext.get = wm_coeff_tlv_get;
 584                         ctl->bytes_ext.put = wm_coeff_tlv_put;
 585                 } else {
 586                         kcontrol->get = wm_coeff_get;
 587                         kcontrol->put = wm_coeff_put;
 588                 }
 589                 break;
 590         }
 591
 592         snd_soc_add_component_controls(dsp->component, kcontrol, 1);
 593
 594         kfree(kcontrol);
 595 }
 596
 597 static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl)
 598 {
 599         struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
 600         struct cs_dsp *cs_dsp = &dsp->cs_dsp;
 601         struct wm_coeff_ctl *ctl;
 602         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 603         const char *region_name;
 604         int ret;
 605
 606         if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
 607                 return 0;
 608
 609         region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type);
 610         if (!region_name) {
 611                 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type);
 612                 return -EINVAL;
 613         }
 614
 615         switch (cs_dsp->fw_ver) {
 616         case 0:
 617         case 1:
 618                 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
 619                                 "%s %s %x", cs_dsp->name, region_name,
 620                                 cs_ctl->alg_region.alg);
 621                 break;
 622         case 2:
 623                 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
 624                                 "%s%c %.12s %x", cs_dsp->name, *region_name,
 625                                 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
 626                 break;
 627         default:
 628                 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
 629                                 "%s %.12s %x", cs_dsp->name,
 630                                 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
 631                 break;
 632         }
 633
 634         if (cs_ctl->subname) {
 635                 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
 636                 int skip = 0;
 637
 638                 if (dsp->component->name_prefix)
 639                         avail -= strlen(dsp->component->name_prefix) + 1;
 640
 641                 /* Truncate the subname from the start if it is too long */
 642                 if (cs_ctl->subname_len > avail)
 643                         skip = cs_ctl->subname_len - avail;
 644
 645                 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret,
 646                          " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip);
 647         }
 648
 649         ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
 650         if (!ctl)
 651                 return -ENOMEM;
 652         ctl->cs_ctl = cs_ctl;
 653
 654         ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
 655         if (!ctl->name) {
 656                 ret = -ENOMEM;
 657                 goto err_ctl;
 658         }
 659
 660         cs_ctl->priv = ctl;
 661
 662         INIT_WORK(&ctl->work, wm_adsp_ctl_work);
 663         schedule_work(&ctl->work);
 664
 665         return 0;
 666
 667 err_ctl:
 668         kfree(ctl);
 669
 670         return ret;
 671 }
 672
 673 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl)
 674 {
 675         struct wm_coeff_ctl *ctl = cs_ctl->priv;
 676
 677         cancel_work_sync(&ctl->work);
 678
 679         kfree(ctl->name);
 680         kfree(ctl);
 681 }
 682
 683 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type,
 684                       unsigned int alg, void *buf, size_t len)
 685 {
 686         struct cs_dsp_coeff_ctl *cs_ctl;
 687         struct wm_coeff_ctl *ctl;
 688         int ret;
 689
 690         mutex_lock(&dsp->cs_dsp.pwr_lock);
 691         cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg);
 692         ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len);
 693         mutex_unlock(&dsp->cs_dsp.pwr_lock);
 694
 695         if (ret < 0)
 696                 return ret;
 697
 698         if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS))
 699                 return 0;
 700
 701         ctl = cs_ctl->priv;
 702
 703         return snd_soc_component_notify_control(dsp->component, ctl->name);
 704 }
 705 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);
 706
 707 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
 708                      unsigned int alg, void *buf, size_t len)
 709 {
 710         int ret;
 711
 712         mutex_lock(&dsp->cs_dsp.pwr_lock);
 713         ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg),
 714                                      0, buf, len);
 715         mutex_unlock(&dsp->cs_dsp.pwr_lock);
 716
 717         return ret;
 718 }
 719 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl);
 720
 721 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp,
 722                                            const struct firmware *wmfw_firmware,
 723                                            char *wmfw_filename,
 724                                            const struct firmware *coeff_firmware,
 725                                            char *coeff_filename)
 726 {
 727         if (wmfw_firmware)
 728                 release_firmware(wmfw_firmware);
 729         kfree(wmfw_filename);
 730
 731         if (coeff_firmware)
 732                 release_firmware(coeff_firmware);
 733         kfree(coeff_filename);
 734 }
 735
 736 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp,
 737                                          const struct firmware **firmware, char **filename,
 738                                          const char *dir, const char *system_name,
 739                                          const char *asoc_component_prefix,
 740                                          const char *filetype)
 741 {
 742         struct cs_dsp *cs_dsp = &dsp->cs_dsp;
 743         const char *fwf;
 744         char *s, c;
 745         int ret = 0;
 746
 747         if (dsp->fwf_name)
 748                 fwf = dsp->fwf_name;
 749         else
 750                 fwf = dsp->cs_dsp.name;
 751
 752         if (system_name && asoc_component_prefix)
 753                 *filename = kasprintf(GFP_KERNEL, "/*(DEBLOBBED)*/", dir, dsp->part,
 754                                       fwf, wm_adsp_fw[dsp->fw].file, system_name,
 755                                       asoc_component_prefix, filetype);
 756         else if (system_name)
 757                 *filename = kasprintf(GFP_KERNEL, "/*(DEBLOBBED)*/", dir, dsp->part,
 758                                       fwf, wm_adsp_fw[dsp->fw].file, system_name,
 759                                       filetype);
 760         else
 761                 *filename = kasprintf(GFP_KERNEL, "/*(DEBLOBBED)*/", dir, dsp->part, fwf,
 762                                       wm_adsp_fw[dsp->fw].file, filetype);
 763
 764         if (*filename == NULL)
 765                 return -ENOMEM;
 766
 767         /*
 768          * Make sure that filename is lower-case and any non alpha-numeric
 769          * characters except full stop and forward slash are replaced with
 770          * hyphens.
 771          */
 772         s = *filename;
 773         while (*s) {
 774                 c = *s;
 775                 if (isalnum(c))
 776                         *s = tolower(c);
 777                 else if ((c != '.') && (c != '/'))
 778                         *s = '-';
 779                 s++;
 780         }
 781
 782         ret = firmware_reject_nowarn(firmware, *filename, cs_dsp->dev);
 783         if (ret != 0) {
 784                 adsp_dbg(dsp, "Failed to request '%s'\n", *filename);
 785                 kfree(*filename);
 786                 *filename = NULL;
 787         } else {
 788                 adsp_dbg(dsp, "Found '%s'\n", *filename);
 789         }
 790
 791         return ret;
 792 }
 793
 794 static const char *cirrus_dir = "cirrus/";
 795 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,
 796                                           const struct firmware **wmfw_firmware,
 797                                           char **wmfw_filename,
 798                                           const struct firmware **coeff_firmware,
 799                                           char **coeff_filename)
 800 {
 801         const char *system_name = dsp->system_name;
 802         const char *asoc_component_prefix = dsp->component->name_prefix;
 803         int ret = 0;
 804
 805         if (system_name && asoc_component_prefix) {
 806                 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 807                                                    cirrus_dir, system_name,
 808                                                    asoc_component_prefix, "wmfw")) {
 809                         wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 810                                                       cirrus_dir, system_name,
 811                                                       asoc_component_prefix, "bin");
 812                         return 0;
 813                 }
 814         }
 815
 816         if (system_name) {
 817                 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 818                                                    cirrus_dir, system_name,
 819                                                    NULL, "wmfw")) {
 820                         if (asoc_component_prefix)
 821                                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 822                                                               cirrus_dir, system_name,
 823                                                               asoc_component_prefix, "bin");
 824
 825                         if (!*coeff_firmware)
 826                                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 827                                                               cirrus_dir, system_name,
 828                                                               NULL, "bin");
 829                         return 0;
 830                 }
 831         }
 832
 833         /* Check system-specific bin without wmfw before falling back to generic */
 834         if (dsp->wmfw_optional && system_name) {
 835                 if (asoc_component_prefix)
 836                         wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 837                                                       cirrus_dir, system_name,
 838                                                       asoc_component_prefix, "bin");
 839
 840                 if (!*coeff_firmware)
 841                         wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 842                                                       cirrus_dir, system_name,
 843                                                       NULL, "bin");
 844
 845                 if (*coeff_firmware)
 846                         return 0;
 847         }
 848
 849         /* Check legacy location */
 850         if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 851                                            "", NULL, NULL, "wmfw")) {
 852                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 853                                               "", NULL, NULL, "bin");
 854                 return 0;
 855         }
 856
 857         /* Fall back to generic wmfw and optional matching bin */
 858         ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 859                                             cirrus_dir, NULL, NULL, "wmfw");
 860         if (!ret || dsp->wmfw_optional) {
 861                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 862                                               cirrus_dir, NULL, NULL, "bin");
 863                 return 0;
 864         }
 865
 866         adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",
 867                  cirrus_dir, dsp->part,
 868                  dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name,
 869                  wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix);
 870
 871         return -ENOENT;
 872 }
 873
 874 static int wm_adsp_common_init(struct wm_adsp *dsp)
 875 {
 876         INIT_LIST_HEAD(&dsp->compr_list);
 877         INIT_LIST_HEAD(&dsp->buffer_list);
 878
 879         return 0;
 880 }
 881
 882 int wm_adsp1_init(struct wm_adsp *dsp)
 883 {
 884         int ret;
 885
 886         dsp->cs_dsp.client_ops = &wm_adsp1_client_ops;
 887
 888         ret = cs_dsp_adsp1_init(&dsp->cs_dsp);
 889         if (ret)
 890                 return ret;
 891
 892         return wm_adsp_common_init(dsp);
 893 }
 894 EXPORT_SYMBOL_GPL(wm_adsp1_init);
 895
 896 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
 897                    struct snd_kcontrol *kcontrol,
 898                    int event)
 899 {
 900         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 901         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 902         struct wm_adsp *dsp = &dsps[w->shift];
 903         int ret = 0;
 904         char *wmfw_filename = NULL;
 905         const struct firmware *wmfw_firmware = NULL;
 906         char *coeff_filename = NULL;
 907         const struct firmware *coeff_firmware = NULL;
 908
 909         dsp->component = component;
 910
 911         switch (event) {
 912         case SND_SOC_DAPM_POST_PMU:
 913                 ret = wm_adsp_request_firmware_files(dsp,
 914                                                      &wmfw_firmware, &wmfw_filename,
 915                                                      &coeff_firmware, &coeff_filename);
 916                 if (ret)
 917                         break;
 918
 919                 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp,
 920                                             wmfw_firmware, wmfw_filename,
 921                                             coeff_firmware, coeff_filename,
 922                                             wm_adsp_fw_text[dsp->fw]);
 923
 924                 wm_adsp_release_firmware_files(dsp,
 925                                                wmfw_firmware, wmfw_filename,
 926                                                coeff_firmware, coeff_filename);
 927                 break;
 928         case SND_SOC_DAPM_PRE_PMD:
 929                 cs_dsp_adsp1_power_down(&dsp->cs_dsp);
 930                 break;
 931         default:
 932                 break;
 933         }
 934
 935         return ret;
 936 }
 937 EXPORT_SYMBOL_GPL(wm_adsp1_event);
 938
 939 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)
 940 {
 941         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 942         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 943         struct wm_adsp *dsp = &dsps[w->shift];
 944
 945         return cs_dsp_set_dspclk(&dsp->cs_dsp, freq);
 946 }
 947 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);
 948
 949 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
 950                            struct snd_ctl_elem_value *ucontrol)
 951 {
 952         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 953         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 954         struct soc_mixer_control *mc =
 955                 (struct soc_mixer_control *)kcontrol->private_value;
 956         struct wm_adsp *dsp = &dsps[mc->shift - 1];
 957
 958         ucontrol->value.integer.value[0] = dsp->preloaded;
 959
 960         return 0;
 961 }
 962 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
 963
 964 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
 965                            struct snd_ctl_elem_value *ucontrol)
 966 {
 967         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 968         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 969         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 970         struct soc_mixer_control *mc =
 971                 (struct soc_mixer_control *)kcontrol->private_value;
 972         struct wm_adsp *dsp = &dsps[mc->shift - 1];
 973         char preload[32];
 974
 975         if (dsp->preloaded == ucontrol->value.integer.value[0])
 976                 return 0;
 977
 978         snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
 979
 980         if (ucontrol->value.integer.value[0] || dsp->toggle_preload)
 981                 snd_soc_component_force_enable_pin(component, preload);
 982         else
 983                 snd_soc_component_disable_pin(component, preload);
 984
 985         snd_soc_dapm_sync(dapm);
 986
 987         flush_work(&dsp->boot_work);
 988
 989         dsp->preloaded = ucontrol->value.integer.value[0];
 990
 991         if (dsp->toggle_preload) {
 992                 snd_soc_component_disable_pin(component, preload);
 993                 snd_soc_dapm_sync(dapm);
 994         }
 995
 996         return 1;
 997 }
 998 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
 999
1000 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware)
1001 {
1002         int ret = 0;
1003         char *wmfw_filename = NULL;
1004         const struct firmware *wmfw_firmware = NULL;
1005         char *coeff_filename = NULL;
1006         const struct firmware *coeff_firmware = NULL;
1007
1008         if (load_firmware) {
1009                 ret = wm_adsp_request_firmware_files(dsp,
1010                                                      &wmfw_firmware, &wmfw_filename,
1011                                                      &coeff_firmware, &coeff_filename);
1012                 if (ret)
1013                         return ret;
1014         }
1015
1016         ret = cs_dsp_power_up(&dsp->cs_dsp,
1017                               wmfw_firmware, wmfw_filename,
1018                               coeff_firmware, coeff_filename,
1019                               wm_adsp_fw_text[dsp->fw]);
1020
1021         wm_adsp_release_firmware_files(dsp,
1022                                        wmfw_firmware, wmfw_filename,
1023                                        coeff_firmware, coeff_filename);
1024
1025         return ret;
1026 }
1027 EXPORT_SYMBOL_GPL(wm_adsp_power_up);
1028
1029 void wm_adsp_power_down(struct wm_adsp *dsp)
1030 {
1031         cs_dsp_power_down(&dsp->cs_dsp);
1032 }
1033 EXPORT_SYMBOL_GPL(wm_adsp_power_down);
1034
1035 static void wm_adsp_boot_work(struct work_struct *work)
1036 {
1037         struct wm_adsp *dsp = container_of(work,
1038                                            struct wm_adsp,
1039                                            boot_work);
1040
1041         wm_adsp_power_up(dsp, true);
1042 }
1043
1044 int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
1045                         struct snd_kcontrol *kcontrol, int event)
1046 {
1047         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1048         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1049         struct wm_adsp *dsp = &dsps[w->shift];
1050
1051         switch (event) {
1052         case SND_SOC_DAPM_PRE_PMU:
1053                 queue_work(system_unbound_wq, &dsp->boot_work);
1054                 break;
1055         case SND_SOC_DAPM_PRE_PMD:
1056                 wm_adsp_power_down(dsp);
1057                 break;
1058         default:
1059                 break;
1060         }
1061
1062         return 0;
1063 }
1064 EXPORT_SYMBOL_GPL(wm_adsp_early_event);
1065
1066 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp)
1067 {
1068         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1069
1070         if (!dsp->pre_run)
1071                 return 0;
1072
1073         return (*dsp->pre_run)(dsp);
1074 }
1075
1076 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp)
1077 {
1078         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1079
1080         if (wm_adsp_fw[dsp->fw].num_caps != 0)
1081                 return wm_adsp_buffer_init(dsp);
1082
1083         return 0;
1084 }
1085
1086 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)
1087 {
1088         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1089
1090         if (wm_adsp_fw[dsp->fw].num_caps != 0)
1091                 wm_adsp_buffer_free(dsp);
1092
1093         dsp->fatal_error = false;
1094 }
1095
1096 int wm_adsp_run(struct wm_adsp *dsp)
1097 {
1098         flush_work(&dsp->boot_work);
1099
1100         return cs_dsp_run(&dsp->cs_dsp);
1101 }
1102 EXPORT_SYMBOL_GPL(wm_adsp_run);
1103
1104 void wm_adsp_stop(struct wm_adsp *dsp)
1105 {
1106         cs_dsp_stop(&dsp->cs_dsp);
1107 }
1108 EXPORT_SYMBOL_GPL(wm_adsp_stop);
1109
1110 int wm_adsp_event(struct snd_soc_dapm_widget *w,
1111                   struct snd_kcontrol *kcontrol, int event)
1112 {
1113         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1114         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1115         struct wm_adsp *dsp = &dsps[w->shift];
1116
1117         switch (event) {
1118         case SND_SOC_DAPM_POST_PMU:
1119                 return wm_adsp_run(dsp);
1120         case SND_SOC_DAPM_PRE_PMD:
1121                 wm_adsp_stop(dsp);
1122                 return 0;
1123         default:
1124                 return 0;
1125         }
1126 }
1127 EXPORT_SYMBOL_GPL(wm_adsp_event);
1128
1129 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)
1130 {
1131         char preload[32];
1132
1133         if (!dsp->cs_dsp.no_core_startstop) {
1134                 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
1135                 snd_soc_component_disable_pin(component, preload);
1136         }
1137
1138         cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root);
1139
1140         dsp->component = component;
1141
1142         return 0;
1143 }
1144 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe);
1145
1146 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component)
1147 {
1148         cs_dsp_cleanup_debugfs(&dsp->cs_dsp);
1149
1150         return 0;
1151 }
1152 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);
1153
1154 int wm_adsp2_init(struct wm_adsp *dsp)
1155 {
1156         int ret;
1157
1158         INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
1159
1160         dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr);
1161         dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
1162
1163         ret = cs_dsp_adsp2_init(&dsp->cs_dsp);
1164         if (ret)
1165                 return ret;
1166
1167         return wm_adsp_common_init(dsp);
1168 }
1169 EXPORT_SYMBOL_GPL(wm_adsp2_init);
1170
1171 int wm_halo_init(struct wm_adsp *dsp)
1172 {
1173         int ret;
1174
1175         INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
1176
1177         dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr);
1178         dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
1179
1180         ret = cs_dsp_halo_init(&dsp->cs_dsp);
1181         if (ret)
1182                 return ret;
1183
1184         return wm_adsp_common_init(dsp);
1185 }
1186 EXPORT_SYMBOL_GPL(wm_halo_init);
1187
1188 void wm_adsp2_remove(struct wm_adsp *dsp)
1189 {
1190         cs_dsp_remove(&dsp->cs_dsp);
1191 }
1192 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
1193
1194 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
1195 {
1196         return compr->buf != NULL;
1197 }
1198
1199 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
1200 {
1201         struct wm_adsp_compr_buf *buf = NULL, *tmp;
1202
1203         if (compr->dsp->fatal_error)
1204                 return -EINVAL;
1205
1206         list_for_each_entry(tmp, &compr->dsp->buffer_list, list) {
1207                 if (!tmp->name || !strcmp(compr->name, tmp->name)) {
1208                         buf = tmp;
1209                         break;
1210                 }
1211         }
1212
1213         if (!buf)
1214                 return -EINVAL;
1215
1216         compr->buf = buf;
1217         buf->compr = compr;
1218
1219         return 0;
1220 }
1221
1222 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
1223 {
1224         if (!compr)
1225                 return;
1226
1227         /* Wake the poll so it can see buffer is no longer attached */
1228         if (compr->stream)
1229                 snd_compr_fragment_elapsed(compr->stream);
1230
1231         if (wm_adsp_compr_attached(compr)) {
1232                 compr->buf->compr = NULL;
1233                 compr->buf = NULL;
1234         }
1235 }
1236
1237 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
1238 {
1239         struct wm_adsp_compr *compr, *tmp;
1240         struct snd_soc_pcm_runtime *rtd = stream->private_data;
1241         int ret = 0;
1242
1243         mutex_lock(&dsp->cs_dsp.pwr_lock);
1244
1245         if (wm_adsp_fw[dsp->fw].num_caps == 0) {
1246                 adsp_err(dsp, "%s: Firmware does not support compressed API\n",
1247                          snd_soc_rtd_to_codec(rtd, 0)->name);
1248                 ret = -ENXIO;
1249                 goto out;
1250         }
1251
1252         if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
1253                 adsp_err(dsp, "%s: Firmware does not support stream direction\n",
1254                          snd_soc_rtd_to_codec(rtd, 0)->name);
1255                 ret = -EINVAL;
1256                 goto out;
1257         }
1258
1259         list_for_each_entry(tmp, &dsp->compr_list, list) {
1260                 if (!strcmp(tmp->name, snd_soc_rtd_to_codec(rtd, 0)->name)) {
1261                         adsp_err(dsp, "%s: Only a single stream supported per dai\n",
1262                                  snd_soc_rtd_to_codec(rtd, 0)->name);
1263                         ret = -EBUSY;
1264                         goto out;
1265                 }
1266         }
1267
1268         compr = kzalloc(sizeof(*compr), GFP_KERNEL);
1269         if (!compr) {
1270                 ret = -ENOMEM;
1271                 goto out;
1272         }
1273
1274         compr->dsp = dsp;
1275         compr->stream = stream;
1276         compr->name = snd_soc_rtd_to_codec(rtd, 0)->name;
1277
1278         list_add_tail(&compr->list, &dsp->compr_list);
1279
1280         stream->runtime->private_data = compr;
1281
1282 out:
1283         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1284
1285         return ret;
1286 }
1287 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
1288
1289 int wm_adsp_compr_free(struct snd_soc_component *component,
1290                        struct snd_compr_stream *stream)
1291 {
1292         struct wm_adsp_compr *compr = stream->runtime->private_data;
1293         struct wm_adsp *dsp = compr->dsp;
1294
1295         mutex_lock(&dsp->cs_dsp.pwr_lock);
1296
1297         wm_adsp_compr_detach(compr);
1298         list_del(&compr->list);
1299
1300         kfree(compr->raw_buf);
1301         kfree(compr);
1302
1303         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1304
1305         return 0;
1306 }
1307 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
1308
1309 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
1310                                       struct snd_compr_params *params)
1311 {
1312         struct wm_adsp_compr *compr = stream->runtime->private_data;
1313         struct wm_adsp *dsp = compr->dsp;
1314         const struct wm_adsp_fw_caps *caps;
1315         const struct snd_codec_desc *desc;
1316         int i, j;
1317
1318         if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
1319             params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
1320             params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
1321             params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
1322             params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) {
1323                 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n",
1324                           params->buffer.fragment_size,
1325                           params->buffer.fragments);
1326
1327                 return -EINVAL;
1328         }
1329
1330         for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
1331                 caps = &wm_adsp_fw[dsp->fw].caps[i];
1332                 desc = &caps->desc;
1333
1334                 if (caps->id != params->codec.id)
1335                         continue;
1336
1337                 if (stream->direction == SND_COMPRESS_PLAYBACK) {
1338                         if (desc->max_ch < params->codec.ch_out)
1339                                 continue;
1340                 } else {
1341                         if (desc->max_ch < params->codec.ch_in)
1342                                 continue;
1343                 }
1344
1345                 if (!(desc->formats & (1 << params->codec.format)))
1346                         continue;
1347
1348                 for (j = 0; j < desc->num_sample_rates; ++j)
1349                         if (desc->sample_rates[j] == params->codec.sample_rate)
1350                                 return 0;
1351         }
1352
1353         compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
1354                   params->codec.id, params->codec.ch_in, params->codec.ch_out,
1355                   params->codec.sample_rate, params->codec.format);
1356         return -EINVAL;
1357 }
1358
1359 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
1360 {
1361         return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE;
1362 }
1363
1364 int wm_adsp_compr_set_params(struct snd_soc_component *component,
1365                              struct snd_compr_stream *stream,
1366                              struct snd_compr_params *params)
1367 {
1368         struct wm_adsp_compr *compr = stream->runtime->private_data;
1369         unsigned int size;
1370         int ret;
1371
1372         ret = wm_adsp_compr_check_params(stream, params);
1373         if (ret)
1374                 return ret;
1375
1376         compr->size = params->buffer;
1377
1378         compr_dbg(compr, "fragment_size=%d fragments=%d\n",
1379                   compr->size.fragment_size, compr->size.fragments);
1380
1381         size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
1382         compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
1383         if (!compr->raw_buf)
1384                 return -ENOMEM;
1385
1386         compr->sample_rate = params->codec.sample_rate;
1387
1388         return 0;
1389 }
1390 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
1391
1392 int wm_adsp_compr_get_caps(struct snd_soc_component *component,
1393                            struct snd_compr_stream *stream,
1394                            struct snd_compr_caps *caps)
1395 {
1396         struct wm_adsp_compr *compr = stream->runtime->private_data;
1397         int fw = compr->dsp->fw;
1398         int i;
1399
1400         if (wm_adsp_fw[fw].caps) {
1401                 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
1402                         caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
1403
1404                 caps->num_codecs = i;
1405                 caps->direction = wm_adsp_fw[fw].compr_direction;
1406
1407                 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
1408                 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
1409                 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
1410                 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
1411         }
1412
1413         return 0;
1414 }
1415 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
1416
1417 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
1418                                       unsigned int field_offset, u32 *data)
1419 {
1420         return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1421                                      buf->host_buf_ptr + field_offset, data);
1422 }
1423
1424 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
1425                                        unsigned int field_offset, u32 data)
1426 {
1427         return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1428                                       buf->host_buf_ptr + field_offset,
1429                                       data);
1430 }
1431
1432 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
1433 {
1434         const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
1435         struct wm_adsp_buffer_region *region;
1436         u32 offset = 0;
1437         int i, ret;
1438
1439         buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions),
1440                                GFP_KERNEL);
1441         if (!buf->regions)
1442                 return -ENOMEM;
1443
1444         for (i = 0; i < caps->num_regions; ++i) {
1445                 region = &buf->regions[i];
1446
1447                 region->offset = offset;
1448                 region->mem_type = caps->region_defs[i].mem_type;
1449
1450                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
1451                                           &region->base_addr);
1452                 if (ret < 0)
1453                         goto err;
1454
1455                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
1456                                           &offset);
1457                 if (ret < 0)
1458                         goto err;
1459
1460                 region->cumulative_size = offset;
1461
1462                 compr_dbg(buf,
1463                           "region=%d type=%d base=%08x off=%08x size=%08x\n",
1464                           i, region->mem_type, region->base_addr,
1465                           region->offset, region->cumulative_size);
1466         }
1467
1468         return 0;
1469
1470 err:
1471         kfree(buf->regions);
1472         return ret;
1473 }
1474
1475 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf)
1476 {
1477         buf->irq_count = 0xFFFFFFFF;
1478         buf->read_index = -1;
1479         buf->avail = 0;
1480 }
1481
1482 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp)
1483 {
1484         struct wm_adsp_compr_buf *buf;
1485
1486         buf = kzalloc(sizeof(*buf), GFP_KERNEL);
1487         if (!buf)
1488                 return NULL;
1489
1490         buf->dsp = dsp;
1491
1492         wm_adsp_buffer_clear(buf);
1493
1494         return buf;
1495 }
1496
1497 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)
1498 {
1499         struct cs_dsp_alg_region *alg_region;
1500         struct wm_adsp_compr_buf *buf;
1501         u32 xmalg, addr, magic;
1502         int i, ret;
1503
1504         alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id);
1505         if (!alg_region) {
1506                 adsp_err(dsp, "No algorithm region found\n");
1507                 return -EINVAL;
1508         }
1509
1510         xmalg = dsp->sys_config_size / sizeof(__be32);
1511
1512         addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
1513         ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic);
1514         if (ret < 0)
1515                 return ret;
1516
1517         if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
1518                 return -ENODEV;
1519
1520         buf = wm_adsp_buffer_alloc(dsp);
1521         if (!buf)
1522                 return -ENOMEM;
1523
1524         addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
1525         for (i = 0; i < 5; ++i) {
1526                 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr,
1527                                             &buf->host_buf_ptr);
1528                 if (ret < 0)
1529                         goto err;
1530
1531                 if (buf->host_buf_ptr)
1532                         break;
1533
1534                 usleep_range(1000, 2000);
1535         }
1536
1537         if (!buf->host_buf_ptr) {
1538                 ret = -EIO;
1539                 goto err;
1540         }
1541
1542         buf->host_buf_mem_type = WMFW_ADSP2_XM;
1543
1544         ret = wm_adsp_buffer_populate(buf);
1545         if (ret < 0)
1546                 goto err;
1547
1548         list_add_tail(&buf->list, &dsp->buffer_list);
1549
1550         compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
1551
1552         return 0;
1553
1554 err:
1555         kfree(buf);
1556
1557         return ret;
1558 }
1559
1560 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl)
1561 {
1562         struct wm_adsp_host_buf_coeff_v1 coeff_v1;
1563         struct wm_adsp_compr_buf *buf;
1564         struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
1565         unsigned int version = 0;
1566         int ret, i;
1567
1568         for (i = 0; i < 5; ++i) {
1569                 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1,
1570                                              min(cs_ctl->len, sizeof(coeff_v1)));
1571                 if (ret < 0)
1572                         return ret;
1573
1574                 if (coeff_v1.host_buf_ptr)
1575                         break;
1576
1577                 usleep_range(1000, 2000);
1578         }
1579
1580         if (!coeff_v1.host_buf_ptr) {
1581                 adsp_err(dsp, "Failed to acquire host buffer\n");
1582                 return -EIO;
1583         }
1584
1585         buf = wm_adsp_buffer_alloc(dsp);
1586         if (!buf)
1587                 return -ENOMEM;
1588
1589         buf->host_buf_mem_type = cs_ctl->alg_region.type;
1590         buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr);
1591
1592         ret = wm_adsp_buffer_populate(buf);
1593         if (ret < 0)
1594                 goto err;
1595
1596         /*
1597          * v0 host_buffer coefficients didn't have versioning, so if the
1598          * control is one word, assume version 0.
1599          */
1600         if (cs_ctl->len == 4)
1601                 goto done;
1602
1603         version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK;
1604         version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;
1605
1606         if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {
1607                 adsp_err(dsp,
1608                          "Host buffer coeff ver %u > supported version %u\n",
1609                          version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);
1610                 ret = -EINVAL;
1611                 goto err;
1612         }
1613
1614         cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));
1615
1616         buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part,
1617                               (char *)&coeff_v1.name);
1618
1619 done:
1620         list_add_tail(&buf->list, &dsp->buffer_list);
1621
1622         compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",
1623                   buf->host_buf_ptr, version);
1624
1625         return version;
1626
1627 err:
1628         kfree(buf);
1629
1630         return ret;
1631 }
1632
1633 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
1634 {
1635         struct cs_dsp_coeff_ctl *cs_ctl;
1636         int ret;
1637
1638         list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) {
1639                 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)
1640                         continue;
1641
1642                 if (!cs_ctl->enabled)
1643                         continue;
1644
1645                 ret = wm_adsp_buffer_parse_coeff(cs_ctl);
1646                 if (ret < 0) {
1647                         adsp_err(dsp, "Failed to parse coeff: %d\n", ret);
1648                         goto error;
1649                 } else if (ret == 0) {
1650                         /* Only one buffer supported for version 0 */
1651                         return 0;
1652                 }
1653         }
1654
1655         if (list_empty(&dsp->buffer_list)) {
1656                 /* Fall back to legacy support */
1657                 ret = wm_adsp_buffer_parse_legacy(dsp);
1658                 if (ret == -ENODEV)
1659                         adsp_info(dsp, "Legacy support not available\n");
1660                 else if (ret)
1661                         adsp_warn(dsp, "Failed to parse legacy: %d\n", ret);
1662         }
1663
1664         return 0;
1665
1666 error:
1667         wm_adsp_buffer_free(dsp);
1668         return ret;
1669 }
1670
1671 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
1672 {
1673         struct wm_adsp_compr_buf *buf, *tmp;
1674
1675         list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) {
1676                 wm_adsp_compr_detach(buf->compr);
1677
1678                 kfree(buf->name);
1679                 kfree(buf->regions);
1680                 list_del(&buf->list);
1681                 kfree(buf);
1682         }
1683
1684         return 0;
1685 }
1686
1687 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
1688 {
1689         int ret;
1690
1691         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
1692         if (ret < 0) {
1693                 compr_err(buf, "Failed to check buffer error: %d\n", ret);
1694                 return ret;
1695         }
1696         if (buf->error != 0) {
1697                 compr_err(buf, "Buffer error occurred: %d\n", buf->error);
1698                 return -EIO;
1699         }
1700
1701         return 0;
1702 }
1703
1704 int wm_adsp_compr_trigger(struct snd_soc_component *component,
1705                           struct snd_compr_stream *stream, int cmd)
1706 {
1707         struct wm_adsp_compr *compr = stream->runtime->private_data;
1708         struct wm_adsp *dsp = compr->dsp;
1709         int ret = 0;
1710
1711         compr_dbg(compr, "Trigger: %d\n", cmd);
1712
1713         mutex_lock(&dsp->cs_dsp.pwr_lock);
1714
1715         switch (cmd) {
1716         case SNDRV_PCM_TRIGGER_START:
1717                 if (!wm_adsp_compr_attached(compr)) {
1718                         ret = wm_adsp_compr_attach(compr);
1719                         if (ret < 0) {
1720                                 compr_err(compr, "Failed to link buffer and stream: %d\n",
1721                                           ret);
1722                                 break;
1723                         }
1724                 }
1725
1726                 ret = wm_adsp_buffer_get_error(compr->buf);
1727                 if (ret < 0)
1728                         break;
1729
1730                 /* Trigger the IRQ at one fragment of data */
1731                 ret = wm_adsp_buffer_write(compr->buf,
1732                                            HOST_BUFFER_FIELD(high_water_mark),
1733                                            wm_adsp_compr_frag_words(compr));
1734                 if (ret < 0) {
1735                         compr_err(compr, "Failed to set high water mark: %d\n",
1736                                   ret);
1737                         break;
1738                 }
1739                 break;
1740         case SNDRV_PCM_TRIGGER_STOP:
1741                 if (wm_adsp_compr_attached(compr))
1742                         wm_adsp_buffer_clear(compr->buf);
1743                 break;
1744         default:
1745                 ret = -EINVAL;
1746                 break;
1747         }
1748
1749         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1750
1751         return ret;
1752 }
1753 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
1754
1755 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
1756 {
1757         int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
1758
1759         return buf->regions[last_region].cumulative_size;
1760 }
1761
1762 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
1763 {
1764         u32 next_read_index, next_write_index;
1765         int write_index, read_index, avail;
1766         int ret;
1767
1768         /* Only sync read index if we haven't already read a valid index */
1769         if (buf->read_index < 0) {
1770                 ret = wm_adsp_buffer_read(buf,
1771                                 HOST_BUFFER_FIELD(next_read_index),
1772                                 &next_read_index);
1773                 if (ret < 0)
1774                         return ret;
1775
1776                 read_index = sign_extend32(next_read_index, 23);
1777
1778                 if (read_index < 0) {
1779                         compr_dbg(buf, "Avail check on unstarted stream\n");
1780                         return 0;
1781                 }
1782
1783                 buf->read_index = read_index;
1784         }
1785
1786         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
1787                         &next_write_index);
1788         if (ret < 0)
1789                 return ret;
1790
1791         write_index = sign_extend32(next_write_index, 23);
1792
1793         avail = write_index - buf->read_index;
1794         if (avail < 0)
1795                 avail += wm_adsp_buffer_size(buf);
1796
1797         compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
1798                   buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE);
1799
1800         buf->avail = avail;
1801
1802         return 0;
1803 }
1804
1805 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
1806 {
1807         struct wm_adsp_compr_buf *buf;
1808         struct wm_adsp_compr *compr;
1809         int ret = 0;
1810
1811         mutex_lock(&dsp->cs_dsp.pwr_lock);
1812
1813         if (list_empty(&dsp->buffer_list)) {
1814                 ret = -ENODEV;
1815                 goto out;
1816         }
1817
1818         adsp_dbg(dsp, "Handling buffer IRQ\n");
1819
1820         list_for_each_entry(buf, &dsp->buffer_list, list) {
1821                 compr = buf->compr;
1822
1823                 ret = wm_adsp_buffer_get_error(buf);
1824                 if (ret < 0)
1825                         goto out_notify; /* Wake poll to report error */
1826
1827                 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
1828                                           &buf->irq_count);
1829                 if (ret < 0) {
1830                         compr_err(buf, "Failed to get irq_count: %d\n", ret);
1831                         goto out;
1832                 }
1833
1834                 ret = wm_adsp_buffer_update_avail(buf);
1835                 if (ret < 0) {
1836                         compr_err(buf, "Error reading avail: %d\n", ret);
1837                         goto out;
1838                 }
1839
1840                 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
1841                         ret = WM_ADSP_COMPR_VOICE_TRIGGER;
1842
1843 out_notify:
1844                 if (compr && compr->stream)
1845                         snd_compr_fragment_elapsed(compr->stream);
1846         }
1847
1848 out:
1849         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1850
1851         return ret;
1852 }
1853 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
1854
1855 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
1856 {
1857         if (buf->irq_count & 0x01)
1858                 return 0;
1859
1860         compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count);
1861
1862         buf->irq_count |= 0x01;
1863
1864         return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
1865                                     buf->irq_count);
1866 }
1867
1868 int wm_adsp_compr_pointer(struct snd_soc_component *component,
1869                           struct snd_compr_stream *stream,
1870                           struct snd_compr_tstamp *tstamp)
1871 {
1872         struct wm_adsp_compr *compr = stream->runtime->private_data;
1873         struct wm_adsp *dsp = compr->dsp;
1874         struct wm_adsp_compr_buf *buf;
1875         int ret = 0;
1876
1877         compr_dbg(compr, "Pointer request\n");
1878
1879         mutex_lock(&dsp->cs_dsp.pwr_lock);
1880
1881         buf = compr->buf;
1882
1883         if (dsp->fatal_error || !buf || buf->error) {
1884                 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
1885                 ret = -EIO;
1886                 goto out;
1887         }
1888
1889         if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1890                 ret = wm_adsp_buffer_update_avail(buf);
1891                 if (ret < 0) {
1892                         compr_err(compr, "Error reading avail: %d\n", ret);
1893                         goto out;
1894                 }
1895
1896                 /*
1897                  * If we really have less than 1 fragment available tell the
1898                  * DSP to inform us once a whole fragment is available.
1899                  */
1900                 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1901                         ret = wm_adsp_buffer_get_error(buf);
1902                         if (ret < 0) {
1903                                 if (buf->error)
1904                                         snd_compr_stop_error(stream,
1905                                                         SNDRV_PCM_STATE_XRUN);
1906                                 goto out;
1907                         }
1908
1909                         ret = wm_adsp_buffer_reenable_irq(buf);
1910                         if (ret < 0) {
1911                                 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n",
1912                                           ret);
1913                                 goto out;
1914                         }
1915                 }
1916         }
1917
1918         tstamp->copied_total = compr->copied_total;
1919         tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE;
1920         tstamp->sampling_rate = compr->sample_rate;
1921
1922 out:
1923         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1924
1925         return ret;
1926 }
1927 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
1928
1929 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
1930 {
1931         struct wm_adsp_compr_buf *buf = compr->buf;
1932         unsigned int adsp_addr;
1933         int mem_type, nwords, max_read;
1934         int i, ret;
1935
1936         /* Calculate read parameters */
1937         for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
1938                 if (buf->read_index < buf->regions[i].cumulative_size)
1939                         break;
1940
1941         if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
1942                 return -EINVAL;
1943
1944         mem_type = buf->regions[i].mem_type;
1945         adsp_addr = buf->regions[i].base_addr +
1946                     (buf->read_index - buf->regions[i].offset);
1947
1948         max_read = wm_adsp_compr_frag_words(compr);
1949         nwords = buf->regions[i].cumulative_size - buf->read_index;
1950
1951         if (nwords > target)
1952                 nwords = target;
1953         if (nwords > buf->avail)
1954                 nwords = buf->avail;
1955         if (nwords > max_read)
1956                 nwords = max_read;
1957         if (!nwords)
1958                 return 0;
1959
1960         /* Read data from DSP */
1961         ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr,
1962                                          nwords, (__be32 *)compr->raw_buf);
1963         if (ret < 0)
1964                 return ret;
1965
1966         cs_dsp_remove_padding(compr->raw_buf, nwords);
1967
1968         /* update read index to account for words read */
1969         buf->read_index += nwords;
1970         if (buf->read_index == wm_adsp_buffer_size(buf))
1971                 buf->read_index = 0;
1972
1973         ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
1974                                    buf->read_index);
1975         if (ret < 0)
1976                 return ret;
1977
1978         /* update avail to account for words read */
1979         buf->avail -= nwords;
1980
1981         return nwords;
1982 }
1983
1984 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
1985                               char __user *buf, size_t count)
1986 {
1987         struct wm_adsp *dsp = compr->dsp;
1988         int ntotal = 0;
1989         int nwords, nbytes;
1990
1991         compr_dbg(compr, "Requested read of %zu bytes\n", count);
1992
1993         if (dsp->fatal_error || !compr->buf || compr->buf->error) {
1994                 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
1995                 return -EIO;
1996         }
1997
1998         count /= CS_DSP_DATA_WORD_SIZE;
1999
2000         do {
2001                 nwords = wm_adsp_buffer_capture_block(compr, count);
2002                 if (nwords < 0) {
2003                         compr_err(compr, "Failed to capture block: %d\n",
2004                                   nwords);
2005                         return nwords;
2006                 }
2007
2008                 nbytes = nwords * CS_DSP_DATA_WORD_SIZE;
2009
2010                 compr_dbg(compr, "Read %d bytes\n", nbytes);
2011
2012                 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
2013                         compr_err(compr, "Failed to copy data to user: %d, %d\n",
2014                                   ntotal, nbytes);
2015                         return -EFAULT;
2016                 }
2017
2018                 count -= nwords;
2019                 ntotal += nbytes;
2020         } while (nwords > 0 && count > 0);
2021
2022         compr->copied_total += ntotal;
2023
2024         return ntotal;
2025 }
2026
2027 int wm_adsp_compr_copy(struct snd_soc_component *component,
2028                        struct snd_compr_stream *stream, char __user *buf,
2029                        size_t count)
2030 {
2031         struct wm_adsp_compr *compr = stream->runtime->private_data;
2032         struct wm_adsp *dsp = compr->dsp;
2033         int ret;
2034
2035         mutex_lock(&dsp->cs_dsp.pwr_lock);
2036
2037         if (stream->direction == SND_COMPRESS_CAPTURE)
2038                 ret = wm_adsp_compr_read(compr, buf, count);
2039         else
2040                 ret = -ENOTSUPP;
2041
2042         mutex_unlock(&dsp->cs_dsp.pwr_lock);
2043
2044         return ret;
2045 }
2046 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
2047
2048 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp)
2049 {
2050         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
2051         struct wm_adsp_compr *compr;
2052
2053         dsp->fatal_error = true;
2054
2055         list_for_each_entry(compr, &dsp->compr_list, list) {
2056                 if (compr->stream)
2057                         snd_compr_fragment_elapsed(compr->stream);
2058         }
2059 }
2060
2061 irqreturn_t wm_adsp2_bus_error(int irq, void *data)
2062 {
2063         struct wm_adsp *dsp = (struct wm_adsp *)data;
2064
2065         cs_dsp_adsp2_bus_error(&dsp->cs_dsp);
2066
2067         return IRQ_HANDLED;
2068 }
2069 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error);
2070
2071 irqreturn_t wm_halo_bus_error(int irq, void *data)
2072 {
2073         struct wm_adsp *dsp = (struct wm_adsp *)data;
2074
2075         cs_dsp_halo_bus_error(&dsp->cs_dsp);
2076
2077         return IRQ_HANDLED;
2078 }
2079 EXPORT_SYMBOL_GPL(wm_halo_bus_error);
2080
2081 irqreturn_t wm_halo_wdt_expire(int irq, void *data)
2082 {
2083         struct wm_adsp *dsp = data;
2084
2085         cs_dsp_halo_wdt_expire(&dsp->cs_dsp);
2086
2087         return IRQ_HANDLED;
2088 }
2089 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);
2090
2091 static const struct cs_dsp_client_ops wm_adsp1_client_ops = {
2092         .control_add = wm_adsp_control_add,
2093         .control_remove = wm_adsp_control_remove,
2094 };
2095
2096 static const struct cs_dsp_client_ops wm_adsp2_client_ops = {
2097         .control_add = wm_adsp_control_add,
2098         .control_remove = wm_adsp_control_remove,
2099         .pre_run = wm_adsp_pre_run,
2100         .post_run = wm_adsp_event_post_run,
2101         .post_stop = wm_adsp_event_post_stop,
2102         .watchdog_expired = wm_adsp_fatal_error,
2103 };
2104
2105 MODULE_LICENSE("GPL v2");
2106 MODULE_IMPORT_NS(FW_CS_DSP);