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 = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg);
 687         struct wm_coeff_ctl *ctl;
 688         int ret;
 689
 690         mutex_lock(&dsp->cs_dsp.pwr_lock);
 691         ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len);
 692         mutex_unlock(&dsp->cs_dsp.pwr_lock);
 693
 694         if (ret < 0)
 695                 return ret;
 696
 697         if (ret == 0 || (cs_ctl->flags & WMFW_CTL_FLAG_SYS))
 698                 return 0;
 699
 700         ctl = cs_ctl->priv;
 701
 702         return snd_soc_component_notify_control(dsp->component, ctl->name);
 703 }
 704 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);
 705
 706 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
 707                      unsigned int alg, void *buf, size_t len)
 708 {
 709         int ret;
 710
 711         mutex_lock(&dsp->cs_dsp.pwr_lock);
 712         ret = cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg),
 713                                      0, buf, len);
 714         mutex_unlock(&dsp->cs_dsp.pwr_lock);
 715
 716         return ret;
 717 }
 718 EXPORT_SYMBOL_GPL(wm_adsp_read_ctl);
 719
 720 static void wm_adsp_release_firmware_files(struct wm_adsp *dsp,
 721                                            const struct firmware *wmfw_firmware,
 722                                            char *wmfw_filename,
 723                                            const struct firmware *coeff_firmware,
 724                                            char *coeff_filename)
 725 {
 726         if (wmfw_firmware)
 727                 release_firmware(wmfw_firmware);
 728         kfree(wmfw_filename);
 729
 730         if (coeff_firmware)
 731                 release_firmware(coeff_firmware);
 732         kfree(coeff_filename);
 733 }
 734
 735 static int wm_adsp_request_firmware_file(struct wm_adsp *dsp,
 736                                          const struct firmware **firmware, char **filename,
 737                                          const char *dir, const char *system_name,
 738                                          const char *asoc_component_prefix,
 739                                          const char *filetype)
 740 {
 741         struct cs_dsp *cs_dsp = &dsp->cs_dsp;
 742         const char *fwf;
 743         char *s, c;
 744         int ret = 0;
 745
 746         if (dsp->fwf_name)
 747                 fwf = dsp->fwf_name;
 748         else
 749                 fwf = dsp->cs_dsp.name;
 750
 751         if (system_name && asoc_component_prefix)
 752                 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s-%s.%s", dir, dsp->part,
 753                                       fwf, wm_adsp_fw[dsp->fw].file, system_name,
 754                                       asoc_component_prefix, filetype);
 755         else if (system_name)
 756                 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s-%s.%s", dir, dsp->part,
 757                                       fwf, wm_adsp_fw[dsp->fw].file, system_name,
 758                                       filetype);
 759         else
 760                 *filename = kasprintf(GFP_KERNEL, "%s%s-%s-%s.%s", dir, dsp->part, fwf,
 761                                       wm_adsp_fw[dsp->fw].file, filetype);
 762
 763         if (*filename == NULL)
 764                 return -ENOMEM;
 765
 766         /*
 767          * Make sure that filename is lower-case and any non alpha-numeric
 768          * characters except full stop and forward slash are replaced with
 769          * hyphens.
 770          */
 771         s = *filename;
 772         while (*s) {
 773                 c = *s;
 774                 if (isalnum(c))
 775                         *s = tolower(c);
 776                 else if ((c != '.') && (c != '/'))
 777                         *s = '-';
 778                 s++;
 779         }
 780
 781         ret = firmware_request_nowarn(firmware, *filename, cs_dsp->dev);
 782         if (ret != 0) {
 783                 adsp_dbg(dsp, "Failed to request '%s'\n", *filename);
 784                 kfree(*filename);
 785                 *filename = NULL;
 786         } else {
 787                 adsp_dbg(dsp, "Found '%s'\n", *filename);
 788         }
 789
 790         return ret;
 791 }
 792
 793 static const char *cirrus_dir = "cirrus/";
 794 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,
 795                                           const struct firmware **wmfw_firmware,
 796                                           char **wmfw_filename,
 797                                           const struct firmware **coeff_firmware,
 798                                           char **coeff_filename)
 799 {
 800         const char *system_name = dsp->system_name;
 801         const char *asoc_component_prefix = dsp->component->name_prefix;
 802         int ret = 0;
 803
 804         if (system_name && asoc_component_prefix) {
 805                 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 806                                                    cirrus_dir, system_name,
 807                                                    asoc_component_prefix, "wmfw")) {
 808                         wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 809                                                       cirrus_dir, system_name,
 810                                                       asoc_component_prefix, "bin");
 811                         return 0;
 812                 }
 813         }
 814
 815         if (system_name) {
 816                 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 817                                                    cirrus_dir, system_name,
 818                                                    NULL, "wmfw")) {
 819                         if (asoc_component_prefix)
 820                                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 821                                                               cirrus_dir, system_name,
 822                                                               asoc_component_prefix, "bin");
 823
 824                         if (!*coeff_firmware)
 825                                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 826                                                               cirrus_dir, system_name,
 827                                                               NULL, "bin");
 828                         return 0;
 829                 }
 830         }
 831
 832         /* Check system-specific bin without wmfw before falling back to generic */
 833         if (dsp->wmfw_optional && system_name) {
 834                 if (asoc_component_prefix)
 835                         wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 836                                                       cirrus_dir, system_name,
 837                                                       asoc_component_prefix, "bin");
 838
 839                 if (!*coeff_firmware)
 840                         wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 841                                                       cirrus_dir, system_name,
 842                                                       NULL, "bin");
 843
 844                 if (*coeff_firmware)
 845                         return 0;
 846         }
 847
 848         /* Check legacy location */
 849         if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 850                                            "", NULL, NULL, "wmfw")) {
 851                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 852                                               "", NULL, NULL, "bin");
 853                 return 0;
 854         }
 855
 856         /* Fall back to generic wmfw and optional matching bin */
 857         ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 858                                             cirrus_dir, NULL, NULL, "wmfw");
 859         if (!ret || dsp->wmfw_optional) {
 860                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 861                                               cirrus_dir, NULL, NULL, "bin");
 862                 return 0;
 863         }
 864
 865         adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",
 866                  cirrus_dir, dsp->part,
 867                  dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name,
 868                  wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix);
 869
 870         return -ENOENT;
 871 }
 872
 873 static int wm_adsp_common_init(struct wm_adsp *dsp)
 874 {
 875         INIT_LIST_HEAD(&dsp->compr_list);
 876         INIT_LIST_HEAD(&dsp->buffer_list);
 877
 878         return 0;
 879 }
 880
 881 int wm_adsp1_init(struct wm_adsp *dsp)
 882 {
 883         int ret;
 884
 885         dsp->cs_dsp.client_ops = &wm_adsp1_client_ops;
 886
 887         ret = cs_dsp_adsp1_init(&dsp->cs_dsp);
 888         if (ret)
 889                 return ret;
 890
 891         return wm_adsp_common_init(dsp);
 892 }
 893 EXPORT_SYMBOL_GPL(wm_adsp1_init);
 894
 895 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
 896                    struct snd_kcontrol *kcontrol,
 897                    int event)
 898 {
 899         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 900         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 901         struct wm_adsp *dsp = &dsps[w->shift];
 902         int ret = 0;
 903         char *wmfw_filename = NULL;
 904         const struct firmware *wmfw_firmware = NULL;
 905         char *coeff_filename = NULL;
 906         const struct firmware *coeff_firmware = NULL;
 907
 908         dsp->component = component;
 909
 910         switch (event) {
 911         case SND_SOC_DAPM_POST_PMU:
 912                 ret = wm_adsp_request_firmware_files(dsp,
 913                                                      &wmfw_firmware, &wmfw_filename,
 914                                                      &coeff_firmware, &coeff_filename);
 915                 if (ret)
 916                         break;
 917
 918                 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp,
 919                                             wmfw_firmware, wmfw_filename,
 920                                             coeff_firmware, coeff_filename,
 921                                             wm_adsp_fw_text[dsp->fw]);
 922
 923                 wm_adsp_release_firmware_files(dsp,
 924                                                wmfw_firmware, wmfw_filename,
 925                                                coeff_firmware, coeff_filename);
 926                 break;
 927         case SND_SOC_DAPM_PRE_PMD:
 928                 cs_dsp_adsp1_power_down(&dsp->cs_dsp);
 929                 break;
 930         default:
 931                 break;
 932         }
 933
 934         return ret;
 935 }
 936 EXPORT_SYMBOL_GPL(wm_adsp1_event);
 937
 938 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)
 939 {
 940         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 941         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 942         struct wm_adsp *dsp = &dsps[w->shift];
 943
 944         return cs_dsp_set_dspclk(&dsp->cs_dsp, freq);
 945 }
 946 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);
 947
 948 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
 949                            struct snd_ctl_elem_value *ucontrol)
 950 {
 951         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 952         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 953         struct soc_mixer_control *mc =
 954                 (struct soc_mixer_control *)kcontrol->private_value;
 955         struct wm_adsp *dsp = &dsps[mc->shift - 1];
 956
 957         ucontrol->value.integer.value[0] = dsp->preloaded;
 958
 959         return 0;
 960 }
 961 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
 962
 963 int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
 964                            struct snd_ctl_elem_value *ucontrol)
 965 {
 966         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 967         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 968         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 969         struct soc_mixer_control *mc =
 970                 (struct soc_mixer_control *)kcontrol->private_value;
 971         struct wm_adsp *dsp = &dsps[mc->shift - 1];
 972         char preload[32];
 973
 974         if (dsp->preloaded == ucontrol->value.integer.value[0])
 975                 return 0;
 976
 977         snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
 978
 979         if (ucontrol->value.integer.value[0] || dsp->toggle_preload)
 980                 snd_soc_component_force_enable_pin(component, preload);
 981         else
 982                 snd_soc_component_disable_pin(component, preload);
 983
 984         snd_soc_dapm_sync(dapm);
 985
 986         flush_work(&dsp->boot_work);
 987
 988         dsp->preloaded = ucontrol->value.integer.value[0];
 989
 990         if (dsp->toggle_preload) {
 991                 snd_soc_component_disable_pin(component, preload);
 992                 snd_soc_dapm_sync(dapm);
 993         }
 994
 995         return 1;
 996 }
 997 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
 998
 999 int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware)
1000 {
1001         int ret = 0;
1002         char *wmfw_filename = NULL;
1003         const struct firmware *wmfw_firmware = NULL;
1004         char *coeff_filename = NULL;
1005         const struct firmware *coeff_firmware = NULL;
1006
1007         if (load_firmware) {
1008                 ret = wm_adsp_request_firmware_files(dsp,
1009                                                      &wmfw_firmware, &wmfw_filename,
1010                                                      &coeff_firmware, &coeff_filename);
1011                 if (ret)
1012                         return ret;
1013         }
1014
1015         ret = cs_dsp_power_up(&dsp->cs_dsp,
1016                               wmfw_firmware, wmfw_filename,
1017                               coeff_firmware, coeff_filename,
1018                               wm_adsp_fw_text[dsp->fw]);
1019
1020         wm_adsp_release_firmware_files(dsp,
1021                                        wmfw_firmware, wmfw_filename,
1022                                        coeff_firmware, coeff_filename);
1023
1024         return ret;
1025 }
1026 EXPORT_SYMBOL_GPL(wm_adsp_power_up);
1027
1028 void wm_adsp_power_down(struct wm_adsp *dsp)
1029 {
1030         cs_dsp_power_down(&dsp->cs_dsp);
1031 }
1032 EXPORT_SYMBOL_GPL(wm_adsp_power_down);
1033
1034 static void wm_adsp_boot_work(struct work_struct *work)
1035 {
1036         struct wm_adsp *dsp = container_of(work,
1037                                            struct wm_adsp,
1038                                            boot_work);
1039
1040         wm_adsp_power_up(dsp, true);
1041 }
1042
1043 int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
1044                         struct snd_kcontrol *kcontrol, int event)
1045 {
1046         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1047         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1048         struct wm_adsp *dsp = &dsps[w->shift];
1049
1050         switch (event) {
1051         case SND_SOC_DAPM_PRE_PMU:
1052                 queue_work(system_unbound_wq, &dsp->boot_work);
1053                 break;
1054         case SND_SOC_DAPM_PRE_PMD:
1055                 wm_adsp_power_down(dsp);
1056                 break;
1057         default:
1058                 break;
1059         }
1060
1061         return 0;
1062 }
1063 EXPORT_SYMBOL_GPL(wm_adsp_early_event);
1064
1065 static int wm_adsp_pre_run(struct cs_dsp *cs_dsp)
1066 {
1067         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1068
1069         if (!dsp->pre_run)
1070                 return 0;
1071
1072         return (*dsp->pre_run)(dsp);
1073 }
1074
1075 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp)
1076 {
1077         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1078
1079         if (wm_adsp_fw[dsp->fw].num_caps != 0)
1080                 return wm_adsp_buffer_init(dsp);
1081
1082         return 0;
1083 }
1084
1085 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)
1086 {
1087         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1088
1089         if (wm_adsp_fw[dsp->fw].num_caps != 0)
1090                 wm_adsp_buffer_free(dsp);
1091
1092         dsp->fatal_error = false;
1093 }
1094
1095 int wm_adsp_run(struct wm_adsp *dsp)
1096 {
1097         flush_work(&dsp->boot_work);
1098
1099         return cs_dsp_run(&dsp->cs_dsp);
1100 }
1101 EXPORT_SYMBOL_GPL(wm_adsp_run);
1102
1103 void wm_adsp_stop(struct wm_adsp *dsp)
1104 {
1105         cs_dsp_stop(&dsp->cs_dsp);
1106 }
1107 EXPORT_SYMBOL_GPL(wm_adsp_stop);
1108
1109 int wm_adsp_event(struct snd_soc_dapm_widget *w,
1110                   struct snd_kcontrol *kcontrol, int event)
1111 {
1112         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1113         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1114         struct wm_adsp *dsp = &dsps[w->shift];
1115
1116         switch (event) {
1117         case SND_SOC_DAPM_POST_PMU:
1118                 return wm_adsp_run(dsp);
1119         case SND_SOC_DAPM_PRE_PMD:
1120                 wm_adsp_stop(dsp);
1121                 return 0;
1122         default:
1123                 return 0;
1124         }
1125 }
1126 EXPORT_SYMBOL_GPL(wm_adsp_event);
1127
1128 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)
1129 {
1130         char preload[32];
1131
1132         if (!dsp->cs_dsp.no_core_startstop) {
1133                 snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
1134                 snd_soc_component_disable_pin(component, preload);
1135         }
1136
1137         cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root);
1138
1139         dsp->component = component;
1140
1141         return 0;
1142 }
1143 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe);
1144
1145 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component)
1146 {
1147         cs_dsp_cleanup_debugfs(&dsp->cs_dsp);
1148
1149         return 0;
1150 }
1151 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);
1152
1153 int wm_adsp2_init(struct wm_adsp *dsp)
1154 {
1155         int ret;
1156
1157         INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
1158
1159         dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr);
1160         dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
1161
1162         ret = cs_dsp_adsp2_init(&dsp->cs_dsp);
1163         if (ret)
1164                 return ret;
1165
1166         return wm_adsp_common_init(dsp);
1167 }
1168 EXPORT_SYMBOL_GPL(wm_adsp2_init);
1169
1170 int wm_halo_init(struct wm_adsp *dsp)
1171 {
1172         int ret;
1173
1174         INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
1175
1176         dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr);
1177         dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
1178
1179         ret = cs_dsp_halo_init(&dsp->cs_dsp);
1180         if (ret)
1181                 return ret;
1182
1183         return wm_adsp_common_init(dsp);
1184 }
1185 EXPORT_SYMBOL_GPL(wm_halo_init);
1186
1187 void wm_adsp2_remove(struct wm_adsp *dsp)
1188 {
1189         cs_dsp_remove(&dsp->cs_dsp);
1190 }
1191 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
1192
1193 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
1194 {
1195         return compr->buf != NULL;
1196 }
1197
1198 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
1199 {
1200         struct wm_adsp_compr_buf *buf = NULL, *tmp;
1201
1202         if (compr->dsp->fatal_error)
1203                 return -EINVAL;
1204
1205         list_for_each_entry(tmp, &compr->dsp->buffer_list, list) {
1206                 if (!tmp->name || !strcmp(compr->name, tmp->name)) {
1207                         buf = tmp;
1208                         break;
1209                 }
1210         }
1211
1212         if (!buf)
1213                 return -EINVAL;
1214
1215         compr->buf = buf;
1216         buf->compr = compr;
1217
1218         return 0;
1219 }
1220
1221 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
1222 {
1223         if (!compr)
1224                 return;
1225
1226         /* Wake the poll so it can see buffer is no longer attached */
1227         if (compr->stream)
1228                 snd_compr_fragment_elapsed(compr->stream);
1229
1230         if (wm_adsp_compr_attached(compr)) {
1231                 compr->buf->compr = NULL;
1232                 compr->buf = NULL;
1233         }
1234 }
1235
1236 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
1237 {
1238         struct wm_adsp_compr *compr, *tmp;
1239         struct snd_soc_pcm_runtime *rtd = stream->private_data;
1240         int ret = 0;
1241
1242         mutex_lock(&dsp->cs_dsp.pwr_lock);
1243
1244         if (wm_adsp_fw[dsp->fw].num_caps == 0) {
1245                 adsp_err(dsp, "%s: Firmware does not support compressed API\n",
1246                          snd_soc_rtd_to_codec(rtd, 0)->name);
1247                 ret = -ENXIO;
1248                 goto out;
1249         }
1250
1251         if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
1252                 adsp_err(dsp, "%s: Firmware does not support stream direction\n",
1253                          snd_soc_rtd_to_codec(rtd, 0)->name);
1254                 ret = -EINVAL;
1255                 goto out;
1256         }
1257
1258         list_for_each_entry(tmp, &dsp->compr_list, list) {
1259                 if (!strcmp(tmp->name, snd_soc_rtd_to_codec(rtd, 0)->name)) {
1260                         adsp_err(dsp, "%s: Only a single stream supported per dai\n",
1261                                  snd_soc_rtd_to_codec(rtd, 0)->name);
1262                         ret = -EBUSY;
1263                         goto out;
1264                 }
1265         }
1266
1267         compr = kzalloc(sizeof(*compr), GFP_KERNEL);
1268         if (!compr) {
1269                 ret = -ENOMEM;
1270                 goto out;
1271         }
1272
1273         compr->dsp = dsp;
1274         compr->stream = stream;
1275         compr->name = snd_soc_rtd_to_codec(rtd, 0)->name;
1276
1277         list_add_tail(&compr->list, &dsp->compr_list);
1278
1279         stream->runtime->private_data = compr;
1280
1281 out:
1282         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1283
1284         return ret;
1285 }
1286 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
1287
1288 int wm_adsp_compr_free(struct snd_soc_component *component,
1289                        struct snd_compr_stream *stream)
1290 {
1291         struct wm_adsp_compr *compr = stream->runtime->private_data;
1292         struct wm_adsp *dsp = compr->dsp;
1293
1294         mutex_lock(&dsp->cs_dsp.pwr_lock);
1295
1296         wm_adsp_compr_detach(compr);
1297         list_del(&compr->list);
1298
1299         kfree(compr->raw_buf);
1300         kfree(compr);
1301
1302         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1303
1304         return 0;
1305 }
1306 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
1307
1308 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
1309                                       struct snd_compr_params *params)
1310 {
1311         struct wm_adsp_compr *compr = stream->runtime->private_data;
1312         struct wm_adsp *dsp = compr->dsp;
1313         const struct wm_adsp_fw_caps *caps;
1314         const struct snd_codec_desc *desc;
1315         int i, j;
1316
1317         if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
1318             params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
1319             params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
1320             params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
1321             params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) {
1322                 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n",
1323                           params->buffer.fragment_size,
1324                           params->buffer.fragments);
1325
1326                 return -EINVAL;
1327         }
1328
1329         for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
1330                 caps = &wm_adsp_fw[dsp->fw].caps[i];
1331                 desc = &caps->desc;
1332
1333                 if (caps->id != params->codec.id)
1334                         continue;
1335
1336                 if (stream->direction == SND_COMPRESS_PLAYBACK) {
1337                         if (desc->max_ch < params->codec.ch_out)
1338                                 continue;
1339                 } else {
1340                         if (desc->max_ch < params->codec.ch_in)
1341                                 continue;
1342                 }
1343
1344                 if (!(desc->formats & (1 << params->codec.format)))
1345                         continue;
1346
1347                 for (j = 0; j < desc->num_sample_rates; ++j)
1348                         if (desc->sample_rates[j] == params->codec.sample_rate)
1349                                 return 0;
1350         }
1351
1352         compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
1353                   params->codec.id, params->codec.ch_in, params->codec.ch_out,
1354                   params->codec.sample_rate, params->codec.format);
1355         return -EINVAL;
1356 }
1357
1358 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
1359 {
1360         return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE;
1361 }
1362
1363 int wm_adsp_compr_set_params(struct snd_soc_component *component,
1364                              struct snd_compr_stream *stream,
1365                              struct snd_compr_params *params)
1366 {
1367         struct wm_adsp_compr *compr = stream->runtime->private_data;
1368         unsigned int size;
1369         int ret;
1370
1371         ret = wm_adsp_compr_check_params(stream, params);
1372         if (ret)
1373                 return ret;
1374
1375         compr->size = params->buffer;
1376
1377         compr_dbg(compr, "fragment_size=%d fragments=%d\n",
1378                   compr->size.fragment_size, compr->size.fragments);
1379
1380         size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
1381         compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
1382         if (!compr->raw_buf)
1383                 return -ENOMEM;
1384
1385         compr->sample_rate = params->codec.sample_rate;
1386
1387         return 0;
1388 }
1389 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
1390
1391 int wm_adsp_compr_get_caps(struct snd_soc_component *component,
1392                            struct snd_compr_stream *stream,
1393                            struct snd_compr_caps *caps)
1394 {
1395         struct wm_adsp_compr *compr = stream->runtime->private_data;
1396         int fw = compr->dsp->fw;
1397         int i;
1398
1399         if (wm_adsp_fw[fw].caps) {
1400                 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
1401                         caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
1402
1403                 caps->num_codecs = i;
1404                 caps->direction = wm_adsp_fw[fw].compr_direction;
1405
1406                 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
1407                 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
1408                 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
1409                 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
1410         }
1411
1412         return 0;
1413 }
1414 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
1415
1416 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
1417                                       unsigned int field_offset, u32 *data)
1418 {
1419         return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1420                                      buf->host_buf_ptr + field_offset, data);
1421 }
1422
1423 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
1424                                        unsigned int field_offset, u32 data)
1425 {
1426         return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1427                                       buf->host_buf_ptr + field_offset,
1428                                       data);
1429 }
1430
1431 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
1432 {
1433         const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
1434         struct wm_adsp_buffer_region *region;
1435         u32 offset = 0;
1436         int i, ret;
1437
1438         buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions),
1439                                GFP_KERNEL);
1440         if (!buf->regions)
1441                 return -ENOMEM;
1442
1443         for (i = 0; i < caps->num_regions; ++i) {
1444                 region = &buf->regions[i];
1445
1446                 region->offset = offset;
1447                 region->mem_type = caps->region_defs[i].mem_type;
1448
1449                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
1450                                           &region->base_addr);
1451                 if (ret < 0)
1452                         goto err;
1453
1454                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
1455                                           &offset);
1456                 if (ret < 0)
1457                         goto err;
1458
1459                 region->cumulative_size = offset;
1460
1461                 compr_dbg(buf,
1462                           "region=%d type=%d base=%08x off=%08x size=%08x\n",
1463                           i, region->mem_type, region->base_addr,
1464                           region->offset, region->cumulative_size);
1465         }
1466
1467         return 0;
1468
1469 err:
1470         kfree(buf->regions);
1471         return ret;
1472 }
1473
1474 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf)
1475 {
1476         buf->irq_count = 0xFFFFFFFF;
1477         buf->read_index = -1;
1478         buf->avail = 0;
1479 }
1480
1481 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp)
1482 {
1483         struct wm_adsp_compr_buf *buf;
1484
1485         buf = kzalloc(sizeof(*buf), GFP_KERNEL);
1486         if (!buf)
1487                 return NULL;
1488
1489         buf->dsp = dsp;
1490
1491         wm_adsp_buffer_clear(buf);
1492
1493         return buf;
1494 }
1495
1496 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)
1497 {
1498         struct cs_dsp_alg_region *alg_region;
1499         struct wm_adsp_compr_buf *buf;
1500         u32 xmalg, addr, magic;
1501         int i, ret;
1502
1503         alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id);
1504         if (!alg_region) {
1505                 adsp_err(dsp, "No algorithm region found\n");
1506                 return -EINVAL;
1507         }
1508
1509         xmalg = dsp->sys_config_size / sizeof(__be32);
1510
1511         addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
1512         ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic);
1513         if (ret < 0)
1514                 return ret;
1515
1516         if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
1517                 return -ENODEV;
1518
1519         buf = wm_adsp_buffer_alloc(dsp);
1520         if (!buf)
1521                 return -ENOMEM;
1522
1523         addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
1524         for (i = 0; i < 5; ++i) {
1525                 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr,
1526                                             &buf->host_buf_ptr);
1527                 if (ret < 0)
1528                         goto err;
1529
1530                 if (buf->host_buf_ptr)
1531                         break;
1532
1533                 usleep_range(1000, 2000);
1534         }
1535
1536         if (!buf->host_buf_ptr) {
1537                 ret = -EIO;
1538                 goto err;
1539         }
1540
1541         buf->host_buf_mem_type = WMFW_ADSP2_XM;
1542
1543         ret = wm_adsp_buffer_populate(buf);
1544         if (ret < 0)
1545                 goto err;
1546
1547         list_add_tail(&buf->list, &dsp->buffer_list);
1548
1549         compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
1550
1551         return 0;
1552
1553 err:
1554         kfree(buf);
1555
1556         return ret;
1557 }
1558
1559 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl)
1560 {
1561         struct wm_adsp_host_buf_coeff_v1 coeff_v1;
1562         struct wm_adsp_compr_buf *buf;
1563         struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
1564         unsigned int version = 0;
1565         int ret, i;
1566
1567         for (i = 0; i < 5; ++i) {
1568                 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1,
1569                                              min(cs_ctl->len, sizeof(coeff_v1)));
1570                 if (ret < 0)
1571                         return ret;
1572
1573                 if (coeff_v1.host_buf_ptr)
1574                         break;
1575
1576                 usleep_range(1000, 2000);
1577         }
1578
1579         if (!coeff_v1.host_buf_ptr) {
1580                 adsp_err(dsp, "Failed to acquire host buffer\n");
1581                 return -EIO;
1582         }
1583
1584         buf = wm_adsp_buffer_alloc(dsp);
1585         if (!buf)
1586                 return -ENOMEM;
1587
1588         buf->host_buf_mem_type = cs_ctl->alg_region.type;
1589         buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr);
1590
1591         ret = wm_adsp_buffer_populate(buf);
1592         if (ret < 0)
1593                 goto err;
1594
1595         /*
1596          * v0 host_buffer coefficients didn't have versioning, so if the
1597          * control is one word, assume version 0.
1598          */
1599         if (cs_ctl->len == 4)
1600                 goto done;
1601
1602         version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK;
1603         version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;
1604
1605         if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {
1606                 adsp_err(dsp,
1607                          "Host buffer coeff ver %u > supported version %u\n",
1608                          version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);
1609                 ret = -EINVAL;
1610                 goto err;
1611         }
1612
1613         cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));
1614
1615         buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part,
1616                               (char *)&coeff_v1.name);
1617
1618 done:
1619         list_add_tail(&buf->list, &dsp->buffer_list);
1620
1621         compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",
1622                   buf->host_buf_ptr, version);
1623
1624         return version;
1625
1626 err:
1627         kfree(buf);
1628
1629         return ret;
1630 }
1631
1632 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
1633 {
1634         struct cs_dsp_coeff_ctl *cs_ctl;
1635         int ret;
1636
1637         list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) {
1638                 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)
1639                         continue;
1640
1641                 if (!cs_ctl->enabled)
1642                         continue;
1643
1644                 ret = wm_adsp_buffer_parse_coeff(cs_ctl);
1645                 if (ret < 0) {
1646                         adsp_err(dsp, "Failed to parse coeff: %d\n", ret);
1647                         goto error;
1648                 } else if (ret == 0) {
1649                         /* Only one buffer supported for version 0 */
1650                         return 0;
1651                 }
1652         }
1653
1654         if (list_empty(&dsp->buffer_list)) {
1655                 /* Fall back to legacy support */
1656                 ret = wm_adsp_buffer_parse_legacy(dsp);
1657                 if (ret == -ENODEV)
1658                         adsp_info(dsp, "Legacy support not available\n");
1659                 else if (ret)
1660                         adsp_warn(dsp, "Failed to parse legacy: %d\n", ret);
1661         }
1662
1663         return 0;
1664
1665 error:
1666         wm_adsp_buffer_free(dsp);
1667         return ret;
1668 }
1669
1670 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
1671 {
1672         struct wm_adsp_compr_buf *buf, *tmp;
1673
1674         list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) {
1675                 wm_adsp_compr_detach(buf->compr);
1676
1677                 kfree(buf->name);
1678                 kfree(buf->regions);
1679                 list_del(&buf->list);
1680                 kfree(buf);
1681         }
1682
1683         return 0;
1684 }
1685
1686 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
1687 {
1688         int ret;
1689
1690         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
1691         if (ret < 0) {
1692                 compr_err(buf, "Failed to check buffer error: %d\n", ret);
1693                 return ret;
1694         }
1695         if (buf->error != 0) {
1696                 compr_err(buf, "Buffer error occurred: %d\n", buf->error);
1697                 return -EIO;
1698         }
1699
1700         return 0;
1701 }
1702
1703 int wm_adsp_compr_trigger(struct snd_soc_component *component,
1704                           struct snd_compr_stream *stream, int cmd)
1705 {
1706         struct wm_adsp_compr *compr = stream->runtime->private_data;
1707         struct wm_adsp *dsp = compr->dsp;
1708         int ret = 0;
1709
1710         compr_dbg(compr, "Trigger: %d\n", cmd);
1711
1712         mutex_lock(&dsp->cs_dsp.pwr_lock);
1713
1714         switch (cmd) {
1715         case SNDRV_PCM_TRIGGER_START:
1716                 if (!wm_adsp_compr_attached(compr)) {
1717                         ret = wm_adsp_compr_attach(compr);
1718                         if (ret < 0) {
1719                                 compr_err(compr, "Failed to link buffer and stream: %d\n",
1720                                           ret);
1721                                 break;
1722                         }
1723                 }
1724
1725                 ret = wm_adsp_buffer_get_error(compr->buf);
1726                 if (ret < 0)
1727                         break;
1728
1729                 /* Trigger the IRQ at one fragment of data */
1730                 ret = wm_adsp_buffer_write(compr->buf,
1731                                            HOST_BUFFER_FIELD(high_water_mark),
1732                                            wm_adsp_compr_frag_words(compr));
1733                 if (ret < 0) {
1734                         compr_err(compr, "Failed to set high water mark: %d\n",
1735                                   ret);
1736                         break;
1737                 }
1738                 break;
1739         case SNDRV_PCM_TRIGGER_STOP:
1740                 if (wm_adsp_compr_attached(compr))
1741                         wm_adsp_buffer_clear(compr->buf);
1742                 break;
1743         default:
1744                 ret = -EINVAL;
1745                 break;
1746         }
1747
1748         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1749
1750         return ret;
1751 }
1752 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
1753
1754 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
1755 {
1756         int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
1757
1758         return buf->regions[last_region].cumulative_size;
1759 }
1760
1761 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
1762 {
1763         u32 next_read_index, next_write_index;
1764         int write_index, read_index, avail;
1765         int ret;
1766
1767         /* Only sync read index if we haven't already read a valid index */
1768         if (buf->read_index < 0) {
1769                 ret = wm_adsp_buffer_read(buf,
1770                                 HOST_BUFFER_FIELD(next_read_index),
1771                                 &next_read_index);
1772                 if (ret < 0)
1773                         return ret;
1774
1775                 read_index = sign_extend32(next_read_index, 23);
1776
1777                 if (read_index < 0) {
1778                         compr_dbg(buf, "Avail check on unstarted stream\n");
1779                         return 0;
1780                 }
1781
1782                 buf->read_index = read_index;
1783         }
1784
1785         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
1786                         &next_write_index);
1787         if (ret < 0)
1788                 return ret;
1789
1790         write_index = sign_extend32(next_write_index, 23);
1791
1792         avail = write_index - buf->read_index;
1793         if (avail < 0)
1794                 avail += wm_adsp_buffer_size(buf);
1795
1796         compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
1797                   buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE);
1798
1799         buf->avail = avail;
1800
1801         return 0;
1802 }
1803
1804 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
1805 {
1806         struct wm_adsp_compr_buf *buf;
1807         struct wm_adsp_compr *compr;
1808         int ret = 0;
1809
1810         mutex_lock(&dsp->cs_dsp.pwr_lock);
1811
1812         if (list_empty(&dsp->buffer_list)) {
1813                 ret = -ENODEV;
1814                 goto out;
1815         }
1816
1817         adsp_dbg(dsp, "Handling buffer IRQ\n");
1818
1819         list_for_each_entry(buf, &dsp->buffer_list, list) {
1820                 compr = buf->compr;
1821
1822                 ret = wm_adsp_buffer_get_error(buf);
1823                 if (ret < 0)
1824                         goto out_notify; /* Wake poll to report error */
1825
1826                 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
1827                                           &buf->irq_count);
1828                 if (ret < 0) {
1829                         compr_err(buf, "Failed to get irq_count: %d\n", ret);
1830                         goto out;
1831                 }
1832
1833                 ret = wm_adsp_buffer_update_avail(buf);
1834                 if (ret < 0) {
1835                         compr_err(buf, "Error reading avail: %d\n", ret);
1836                         goto out;
1837                 }
1838
1839                 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
1840                         ret = WM_ADSP_COMPR_VOICE_TRIGGER;
1841
1842 out_notify:
1843                 if (compr && compr->stream)
1844                         snd_compr_fragment_elapsed(compr->stream);
1845         }
1846
1847 out:
1848         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1849
1850         return ret;
1851 }
1852 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
1853
1854 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
1855 {
1856         if (buf->irq_count & 0x01)
1857                 return 0;
1858
1859         compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count);
1860
1861         buf->irq_count |= 0x01;
1862
1863         return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
1864                                     buf->irq_count);
1865 }
1866
1867 int wm_adsp_compr_pointer(struct snd_soc_component *component,
1868                           struct snd_compr_stream *stream,
1869                           struct snd_compr_tstamp *tstamp)
1870 {
1871         struct wm_adsp_compr *compr = stream->runtime->private_data;
1872         struct wm_adsp *dsp = compr->dsp;
1873         struct wm_adsp_compr_buf *buf;
1874         int ret = 0;
1875
1876         compr_dbg(compr, "Pointer request\n");
1877
1878         mutex_lock(&dsp->cs_dsp.pwr_lock);
1879
1880         buf = compr->buf;
1881
1882         if (dsp->fatal_error || !buf || buf->error) {
1883                 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
1884                 ret = -EIO;
1885                 goto out;
1886         }
1887
1888         if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1889                 ret = wm_adsp_buffer_update_avail(buf);
1890                 if (ret < 0) {
1891                         compr_err(compr, "Error reading avail: %d\n", ret);
1892                         goto out;
1893                 }
1894
1895                 /*
1896                  * If we really have less than 1 fragment available tell the
1897                  * DSP to inform us once a whole fragment is available.
1898                  */
1899                 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1900                         ret = wm_adsp_buffer_get_error(buf);
1901                         if (ret < 0) {
1902                                 if (buf->error)
1903                                         snd_compr_stop_error(stream,
1904                                                         SNDRV_PCM_STATE_XRUN);
1905                                 goto out;
1906                         }
1907
1908                         ret = wm_adsp_buffer_reenable_irq(buf);
1909                         if (ret < 0) {
1910                                 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n",
1911                                           ret);
1912                                 goto out;
1913                         }
1914                 }
1915         }
1916
1917         tstamp->copied_total = compr->copied_total;
1918         tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE;
1919         tstamp->sampling_rate = compr->sample_rate;
1920
1921 out:
1922         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1923
1924         return ret;
1925 }
1926 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
1927
1928 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
1929 {
1930         struct wm_adsp_compr_buf *buf = compr->buf;
1931         unsigned int adsp_addr;
1932         int mem_type, nwords, max_read;
1933         int i, ret;
1934
1935         /* Calculate read parameters */
1936         for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
1937                 if (buf->read_index < buf->regions[i].cumulative_size)
1938                         break;
1939
1940         if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
1941                 return -EINVAL;
1942
1943         mem_type = buf->regions[i].mem_type;
1944         adsp_addr = buf->regions[i].base_addr +
1945                     (buf->read_index - buf->regions[i].offset);
1946
1947         max_read = wm_adsp_compr_frag_words(compr);
1948         nwords = buf->regions[i].cumulative_size - buf->read_index;
1949
1950         if (nwords > target)
1951                 nwords = target;
1952         if (nwords > buf->avail)
1953                 nwords = buf->avail;
1954         if (nwords > max_read)
1955                 nwords = max_read;
1956         if (!nwords)
1957                 return 0;
1958
1959         /* Read data from DSP */
1960         ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr,
1961                                          nwords, (__be32 *)compr->raw_buf);
1962         if (ret < 0)
1963                 return ret;
1964
1965         cs_dsp_remove_padding(compr->raw_buf, nwords);
1966
1967         /* update read index to account for words read */
1968         buf->read_index += nwords;
1969         if (buf->read_index == wm_adsp_buffer_size(buf))
1970                 buf->read_index = 0;
1971
1972         ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
1973                                    buf->read_index);
1974         if (ret < 0)
1975                 return ret;
1976
1977         /* update avail to account for words read */
1978         buf->avail -= nwords;
1979
1980         return nwords;
1981 }
1982
1983 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
1984                               char __user *buf, size_t count)
1985 {
1986         struct wm_adsp *dsp = compr->dsp;
1987         int ntotal = 0;
1988         int nwords, nbytes;
1989
1990         compr_dbg(compr, "Requested read of %zu bytes\n", count);
1991
1992         if (dsp->fatal_error || !compr->buf || compr->buf->error) {
1993                 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
1994                 return -EIO;
1995         }
1996
1997         count /= CS_DSP_DATA_WORD_SIZE;
1998
1999         do {
2000                 nwords = wm_adsp_buffer_capture_block(compr, count);
2001                 if (nwords < 0) {
2002                         compr_err(compr, "Failed to capture block: %d\n",
2003                                   nwords);
2004                         return nwords;
2005                 }
2006
2007                 nbytes = nwords * CS_DSP_DATA_WORD_SIZE;
2008
2009                 compr_dbg(compr, "Read %d bytes\n", nbytes);
2010
2011                 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
2012                         compr_err(compr, "Failed to copy data to user: %d, %d\n",
2013                                   ntotal, nbytes);
2014                         return -EFAULT;
2015                 }
2016
2017                 count -= nwords;
2018                 ntotal += nbytes;
2019         } while (nwords > 0 && count > 0);
2020
2021         compr->copied_total += ntotal;
2022
2023         return ntotal;
2024 }
2025
2026 int wm_adsp_compr_copy(struct snd_soc_component *component,
2027                        struct snd_compr_stream *stream, char __user *buf,
2028                        size_t count)
2029 {
2030         struct wm_adsp_compr *compr = stream->runtime->private_data;
2031         struct wm_adsp *dsp = compr->dsp;
2032         int ret;
2033
2034         mutex_lock(&dsp->cs_dsp.pwr_lock);
2035
2036         if (stream->direction == SND_COMPRESS_CAPTURE)
2037                 ret = wm_adsp_compr_read(compr, buf, count);
2038         else
2039                 ret = -ENOTSUPP;
2040
2041         mutex_unlock(&dsp->cs_dsp.pwr_lock);
2042
2043         return ret;
2044 }
2045 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
2046
2047 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp)
2048 {
2049         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
2050         struct wm_adsp_compr *compr;
2051
2052         dsp->fatal_error = true;
2053
2054         list_for_each_entry(compr, &dsp->compr_list, list) {
2055                 if (compr->stream)
2056                         snd_compr_fragment_elapsed(compr->stream);
2057         }
2058 }
2059
2060 irqreturn_t wm_adsp2_bus_error(int irq, void *data)
2061 {
2062         struct wm_adsp *dsp = (struct wm_adsp *)data;
2063
2064         cs_dsp_adsp2_bus_error(&dsp->cs_dsp);
2065
2066         return IRQ_HANDLED;
2067 }
2068 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error);
2069
2070 irqreturn_t wm_halo_bus_error(int irq, void *data)
2071 {
2072         struct wm_adsp *dsp = (struct wm_adsp *)data;
2073
2074         cs_dsp_halo_bus_error(&dsp->cs_dsp);
2075
2076         return IRQ_HANDLED;
2077 }
2078 EXPORT_SYMBOL_GPL(wm_halo_bus_error);
2079
2080 irqreturn_t wm_halo_wdt_expire(int irq, void *data)
2081 {
2082         struct wm_adsp *dsp = data;
2083
2084         cs_dsp_halo_wdt_expire(&dsp->cs_dsp);
2085
2086         return IRQ_HANDLED;
2087 }
2088 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);
2089
2090 static const struct cs_dsp_client_ops wm_adsp1_client_ops = {
2091         .control_add = wm_adsp_control_add,
2092         .control_remove = wm_adsp_control_remove,
2093 };
2094
2095 static const struct cs_dsp_client_ops wm_adsp2_client_ops = {
2096         .control_add = wm_adsp_control_add,
2097         .control_remove = wm_adsp_control_remove,
2098         .pre_run = wm_adsp_pre_run,
2099         .post_run = wm_adsp_event_post_run,
2100         .post_stop = wm_adsp_event_post_stop,
2101         .watchdog_expired = wm_adsp_fatal_error,
2102 };
2103
2104 MODULE_LICENSE("GPL v2");
2105 MODULE_IMPORT_NS(FW_CS_DSP);