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/pm_runtime.h>
  19 #include <linux/regmap.h>
  20 #include <linux/regulator/consumer.h>
  21 #include <linux/slab.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         int ret = 0;
 423
 424         mutex_lock(&cs_ctl->dsp->pwr_lock);
 425
 426         if (copy_from_user(cs_ctl->cache, bytes, size))
 427                 ret = -EFAULT;
 428         else
 429                 ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, cs_ctl->cache, size);
 430
 431         mutex_unlock(&cs_ctl->dsp->pwr_lock);
 432
 433         return ret;
 434 }
 435
 436 static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
 437                               struct snd_ctl_elem_value *ucontrol)
 438 {
 439         struct soc_bytes_ext *bytes_ext =
 440                 (struct soc_bytes_ext *)kctl->private_value;
 441         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 442         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 443         unsigned int val = ucontrol->value.integer.value[0];
 444         int ret;
 445
 446         if (val == 0)
 447                 return 0;       /* 0 means no event */
 448
 449         mutex_lock(&cs_ctl->dsp->pwr_lock);
 450
 451         if (cs_ctl->enabled)
 452                 ret = cs_dsp_coeff_write_acked_control(cs_ctl, val);
 453         else
 454                 ret = -EPERM;
 455
 456         mutex_unlock(&cs_ctl->dsp->pwr_lock);
 457
 458         return ret;
 459 }
 460
 461 static int wm_coeff_get(struct snd_kcontrol *kctl,
 462                         struct snd_ctl_elem_value *ucontrol)
 463 {
 464         struct soc_bytes_ext *bytes_ext =
 465                 (struct soc_bytes_ext *)kctl->private_value;
 466         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 467         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 468         char *p = ucontrol->value.bytes.data;
 469         int ret;
 470
 471         mutex_lock(&cs_ctl->dsp->pwr_lock);
 472         ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len);
 473         mutex_unlock(&cs_ctl->dsp->pwr_lock);
 474
 475         return ret;
 476 }
 477
 478 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
 479                             unsigned int __user *bytes, unsigned int size)
 480 {
 481         struct soc_bytes_ext *bytes_ext =
 482                 (struct soc_bytes_ext *)kctl->private_value;
 483         struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 484         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 485         int ret = 0;
 486
 487         mutex_lock(&cs_ctl->dsp->pwr_lock);
 488
 489         ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, cs_ctl->cache, size);
 490
 491         if (!ret && copy_to_user(bytes, cs_ctl->cache, size))
 492                 ret = -EFAULT;
 493
 494         mutex_unlock(&cs_ctl->dsp->pwr_lock);
 495
 496         return ret;
 497 }
 498
 499 static int wm_coeff_get_acked(struct snd_kcontrol *kcontrol,
 500                               struct snd_ctl_elem_value *ucontrol)
 501 {
 502         /*
 503          * Although it's not useful to read an acked control, we must satisfy
 504          * user-side assumptions that all controls are readable and that a
 505          * write of the same value should be filtered out (it's valid to send
 506          * the same event number again to the firmware). We therefore return 0,
 507          * meaning "no event" so valid event numbers will always be a change
 508          */
 509         ucontrol->value.integer.value[0] = 0;
 510
 511         return 0;
 512 }
 513
 514 static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len)
 515 {
 516         unsigned int out, rd, wr, vol;
 517
 518         if (len > ADSP_MAX_STD_CTRL_SIZE) {
 519                 rd = SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 520                 wr = SNDRV_CTL_ELEM_ACCESS_TLV_WRITE;
 521                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 522
 523                 out = SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
 524         } else {
 525                 rd = SNDRV_CTL_ELEM_ACCESS_READ;
 526                 wr = SNDRV_CTL_ELEM_ACCESS_WRITE;
 527                 vol = SNDRV_CTL_ELEM_ACCESS_VOLATILE;
 528
 529                 out = 0;
 530         }
 531
 532         if (in) {
 533                 out |= rd;
 534                 if (in & WMFW_CTL_FLAG_WRITEABLE)
 535                         out |= wr;
 536                 if (in & WMFW_CTL_FLAG_VOLATILE)
 537                         out |= vol;
 538         } else {
 539                 out |= rd | wr | vol;
 540         }
 541
 542         return out;
 543 }
 544
 545 static void wm_adsp_ctl_work(struct work_struct *work)
 546 {
 547         struct wm_coeff_ctl *ctl = container_of(work,
 548                                                 struct wm_coeff_ctl,
 549                                                 work);
 550         struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 551         struct wm_adsp *dsp = container_of(cs_ctl->dsp,
 552                                            struct wm_adsp,
 553                                            cs_dsp);
 554         struct snd_kcontrol_new *kcontrol;
 555
 556         kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
 557         if (!kcontrol)
 558                 return;
 559
 560         kcontrol->name = ctl->name;
 561         kcontrol->info = wm_coeff_info;
 562         kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 563         kcontrol->tlv.c = snd_soc_bytes_tlv_callback;
 564         kcontrol->private_value = (unsigned long)&ctl->bytes_ext;
 565         kcontrol->access = wmfw_convert_flags(cs_ctl->flags, cs_ctl->len);
 566
 567         switch (cs_ctl->type) {
 568         case WMFW_CTL_TYPE_ACKED:
 569                 kcontrol->get = wm_coeff_get_acked;
 570                 kcontrol->put = wm_coeff_put_acked;
 571                 break;
 572         default:
 573                 if (kcontrol->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
 574                         ctl->bytes_ext.max = cs_ctl->len;
 575                         ctl->bytes_ext.get = wm_coeff_tlv_get;
 576                         ctl->bytes_ext.put = wm_coeff_tlv_put;
 577                 } else {
 578                         kcontrol->get = wm_coeff_get;
 579                         kcontrol->put = wm_coeff_put;
 580                 }
 581                 break;
 582         }
 583
 584         snd_soc_add_component_controls(dsp->component, kcontrol, 1);
 585
 586         kfree(kcontrol);
 587 }
 588
 589 static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl)
 590 {
 591         struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
 592         struct cs_dsp *cs_dsp = &dsp->cs_dsp;
 593         struct wm_coeff_ctl *ctl;
 594         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 595         const char *region_name;
 596         int ret;
 597
 598         if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
 599                 return 0;
 600
 601         region_name = cs_dsp_mem_region_name(cs_ctl->alg_region.type);
 602         if (!region_name) {
 603                 adsp_err(dsp, "Unknown region type: %d\n", cs_ctl->alg_region.type);
 604                 return -EINVAL;
 605         }
 606
 607         switch (cs_dsp->fw_ver) {
 608         case 0:
 609         case 1:
 610                 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
 611                                 "%s %s %x", cs_dsp->name, region_name,
 612                                 cs_ctl->alg_region.alg);
 613                 break;
 614         case 2:
 615                 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
 616                                 "%s%c %.12s %x", cs_dsp->name, *region_name,
 617                                 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
 618                 break;
 619         default:
 620                 ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
 621                                 "%s %.12s %x", cs_dsp->name,
 622                                 wm_adsp_fw_text[dsp->fw], cs_ctl->alg_region.alg);
 623                 break;
 624         }
 625
 626         if (cs_ctl->subname) {
 627                 int avail = SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret - 2;
 628                 int skip = 0;
 629
 630                 if (dsp->component->name_prefix)
 631                         avail -= strlen(dsp->component->name_prefix) + 1;
 632
 633                 /* Truncate the subname from the start if it is too long */
 634                 if (cs_ctl->subname_len > avail)
 635                         skip = cs_ctl->subname_len - avail;
 636
 637                 snprintf(name + ret, SNDRV_CTL_ELEM_ID_NAME_MAXLEN - ret,
 638                          " %.*s", cs_ctl->subname_len - skip, cs_ctl->subname + skip);
 639         }
 640
 641         ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
 642         if (!ctl)
 643                 return -ENOMEM;
 644         ctl->cs_ctl = cs_ctl;
 645
 646         ctl->name = kmemdup(name, strlen(name) + 1, GFP_KERNEL);
 647         if (!ctl->name) {
 648                 ret = -ENOMEM;
 649                 goto err_ctl;
 650         }
 651
 652         cs_ctl->priv = ctl;
 653
 654         INIT_WORK(&ctl->work, wm_adsp_ctl_work);
 655         schedule_work(&ctl->work);
 656
 657         return 0;
 658
 659 err_ctl:
 660         kfree(ctl);
 661
 662         return ret;
 663 }
 664
 665 static void wm_adsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl)
 666 {
 667         struct wm_coeff_ctl *ctl = cs_ctl->priv;
 668
 669         cancel_work_sync(&ctl->work);
 670
 671         kfree(ctl->name);
 672         kfree(ctl);
 673 }
 674
 675 int wm_adsp_write_ctl(struct wm_adsp *dsp, const char *name, int type,
 676                       unsigned int alg, void *buf, size_t len)
 677 {
 678         struct cs_dsp_coeff_ctl *cs_ctl = cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg);
 679         struct wm_coeff_ctl *ctl;
 680         struct snd_kcontrol *kcontrol;
 681         char ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 682         int ret;
 683
 684         ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, buf, len);
 685         if (ret)
 686                 return ret;
 687
 688         if (cs_ctl->flags & WMFW_CTL_FLAG_SYS)
 689                 return 0;
 690
 691         ctl = cs_ctl->priv;
 692
 693         if (dsp->component->name_prefix)
 694                 snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s",
 695                          dsp->component->name_prefix, ctl->name);
 696         else
 697                 snprintf(ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s",
 698                          ctl->name);
 699
 700         kcontrol = snd_soc_card_get_kcontrol(dsp->component->card, ctl_name);
 701         if (!kcontrol) {
 702                 adsp_err(dsp, "Can't find kcontrol %s\n", ctl_name);
 703                 return -EINVAL;
 704         }
 705
 706         snd_ctl_notify(dsp->component->card->snd_card,
 707                        SNDRV_CTL_EVENT_MASK_VALUE, &kcontrol->id);
 708
 709         return 0;
 710 }
 711 EXPORT_SYMBOL_GPL(wm_adsp_write_ctl);
 712
 713 int wm_adsp_read_ctl(struct wm_adsp *dsp, const char *name, int type,
 714                      unsigned int alg, void *buf, size_t len)
 715 {
 716         return cs_dsp_coeff_read_ctrl(cs_dsp_get_ctl(&dsp->cs_dsp, name, type, alg),
 717                                       0, buf, len);
 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         }
 788
 789         return ret;
 790 }
 791
 792 static const char *cirrus_dir = "cirrus/";
 793 static int wm_adsp_request_firmware_files(struct wm_adsp *dsp,
 794                                           const struct firmware **wmfw_firmware,
 795                                           char **wmfw_filename,
 796                                           const struct firmware **coeff_firmware,
 797                                           char **coeff_filename)
 798 {
 799         const char *system_name = dsp->system_name;
 800         const char *asoc_component_prefix = dsp->component->name_prefix;
 801         int ret = 0;
 802
 803         if (system_name && asoc_component_prefix) {
 804                 if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 805                                                    cirrus_dir, system_name,
 806                                                    asoc_component_prefix, "wmfw")) {
 807                         adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
 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                         adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
 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         if (!wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 834                                            "", NULL, NULL, "wmfw")) {
 835                 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
 836                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 837                                               "", NULL, NULL, "bin");
 838                 return 0;
 839         }
 840
 841         ret = wm_adsp_request_firmware_file(dsp, wmfw_firmware, wmfw_filename,
 842                                             cirrus_dir, NULL, NULL, "wmfw");
 843         if (!ret) {
 844                 adsp_dbg(dsp, "Found '%s'\n", *wmfw_filename);
 845                 wm_adsp_request_firmware_file(dsp, coeff_firmware, coeff_filename,
 846                                               cirrus_dir, NULL, NULL, "bin");
 847                 return 0;
 848         }
 849
 850         adsp_err(dsp, "Failed to request firmware <%s>%s-%s-%s<-%s<%s>>.wmfw\n",
 851                  cirrus_dir, dsp->part,
 852                  dsp->fwf_name ? dsp->fwf_name : dsp->cs_dsp.name,
 853                  wm_adsp_fw[dsp->fw].file, system_name, asoc_component_prefix);
 854
 855         return -ENOENT;
 856 }
 857
 858 static int wm_adsp_common_init(struct wm_adsp *dsp)
 859 {
 860         INIT_LIST_HEAD(&dsp->compr_list);
 861         INIT_LIST_HEAD(&dsp->buffer_list);
 862
 863         return 0;
 864 }
 865
 866 int wm_adsp1_init(struct wm_adsp *dsp)
 867 {
 868         int ret;
 869
 870         dsp->cs_dsp.client_ops = &wm_adsp1_client_ops;
 871
 872         ret = cs_dsp_adsp1_init(&dsp->cs_dsp);
 873         if (ret)
 874                 return ret;
 875
 876         return wm_adsp_common_init(dsp);
 877 }
 878 EXPORT_SYMBOL_GPL(wm_adsp1_init);
 879
 880 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
 881                    struct snd_kcontrol *kcontrol,
 882                    int event)
 883 {
 884         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 885         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 886         struct wm_adsp *dsp = &dsps[w->shift];
 887         int ret = 0;
 888         char *wmfw_filename = NULL;
 889         const struct firmware *wmfw_firmware = NULL;
 890         char *coeff_filename = NULL;
 891         const struct firmware *coeff_firmware = NULL;
 892
 893         dsp->component = component;
 894
 895         switch (event) {
 896         case SND_SOC_DAPM_POST_PMU:
 897                 ret = wm_adsp_request_firmware_files(dsp,
 898                                                      &wmfw_firmware, &wmfw_filename,
 899                                                      &coeff_firmware, &coeff_filename);
 900                 if (ret)
 901                         break;
 902
 903                 ret = cs_dsp_adsp1_power_up(&dsp->cs_dsp,
 904                                             wmfw_firmware, wmfw_filename,
 905                                             coeff_firmware, coeff_filename,
 906                                             wm_adsp_fw_text[dsp->fw]);
 907
 908                 wm_adsp_release_firmware_files(dsp,
 909                                                wmfw_firmware, wmfw_filename,
 910                                                coeff_firmware, coeff_filename);
 911                 break;
 912         case SND_SOC_DAPM_PRE_PMD:
 913                 cs_dsp_adsp1_power_down(&dsp->cs_dsp);
 914                 break;
 915         default:
 916                 break;
 917         }
 918
 919         return ret;
 920 }
 921 EXPORT_SYMBOL_GPL(wm_adsp1_event);
 922
 923 int wm_adsp2_set_dspclk(struct snd_soc_dapm_widget *w, unsigned int freq)
 924 {
 925         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 926         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 927         struct wm_adsp *dsp = &dsps[w->shift];
 928
 929         return cs_dsp_set_dspclk(&dsp->cs_dsp, freq);
 930 }
 931 EXPORT_SYMBOL_GPL(wm_adsp2_set_dspclk);
 932
 933 int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol,
 934                            struct snd_ctl_elem_value *ucontrol)
 935 {
 936         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 937         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
 938         struct soc_mixer_control *mc =
 939                 (struct soc_mixer_control *)kcontrol->private_value;
 940         struct wm_adsp *dsp = &dsps[mc->shift - 1];
 941
 942         ucontrol->value.integer.value[0] = dsp->preloaded;
 943
 944         return 0;
 945 }
 946 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_get);
 947
 948 int wm_adsp2_preloader_put(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 snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(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         char preload[32];
 958
 959         if (dsp->preloaded == ucontrol->value.integer.value[0])
 960                 return 0;
 961
 962         snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
 963
 964         if (ucontrol->value.integer.value[0] || dsp->toggle_preload)
 965                 snd_soc_component_force_enable_pin(component, preload);
 966         else
 967                 snd_soc_component_disable_pin(component, preload);
 968
 969         snd_soc_dapm_sync(dapm);
 970
 971         flush_work(&dsp->boot_work);
 972
 973         dsp->preloaded = ucontrol->value.integer.value[0];
 974
 975         if (dsp->toggle_preload) {
 976                 snd_soc_component_disable_pin(component, preload);
 977                 snd_soc_dapm_sync(dapm);
 978         }
 979
 980         return 1;
 981 }
 982 EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
 983
 984 static void wm_adsp_boot_work(struct work_struct *work)
 985 {
 986         struct wm_adsp *dsp = container_of(work,
 987                                            struct wm_adsp,
 988                                            boot_work);
 989         int ret = 0;
 990         char *wmfw_filename = NULL;
 991         const struct firmware *wmfw_firmware = NULL;
 992         char *coeff_filename = NULL;
 993         const struct firmware *coeff_firmware = NULL;
 994
 995         ret = wm_adsp_request_firmware_files(dsp,
 996                                              &wmfw_firmware, &wmfw_filename,
 997                                              &coeff_firmware, &coeff_filename);
 998         if (ret)
 999                 return;
1000
1001         cs_dsp_power_up(&dsp->cs_dsp,
1002                         wmfw_firmware, wmfw_filename,
1003                         coeff_firmware, coeff_filename,
1004                         wm_adsp_fw_text[dsp->fw]);
1005
1006         wm_adsp_release_firmware_files(dsp,
1007                                        wmfw_firmware, wmfw_filename,
1008                                        coeff_firmware, coeff_filename);
1009 }
1010
1011 int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
1012                         struct snd_kcontrol *kcontrol, int event)
1013 {
1014         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1015         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1016         struct wm_adsp *dsp = &dsps[w->shift];
1017
1018         switch (event) {
1019         case SND_SOC_DAPM_PRE_PMU:
1020                 queue_work(system_unbound_wq, &dsp->boot_work);
1021                 break;
1022         case SND_SOC_DAPM_PRE_PMD:
1023                 cs_dsp_power_down(&dsp->cs_dsp);
1024                 break;
1025         default:
1026                 break;
1027         }
1028
1029         return 0;
1030 }
1031 EXPORT_SYMBOL_GPL(wm_adsp_early_event);
1032
1033 static int wm_adsp_event_post_run(struct cs_dsp *cs_dsp)
1034 {
1035         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1036
1037         if (wm_adsp_fw[dsp->fw].num_caps != 0)
1038                 return wm_adsp_buffer_init(dsp);
1039
1040         return 0;
1041 }
1042
1043 static void wm_adsp_event_post_stop(struct cs_dsp *cs_dsp)
1044 {
1045         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1046
1047         if (wm_adsp_fw[dsp->fw].num_caps != 0)
1048                 wm_adsp_buffer_free(dsp);
1049
1050         dsp->fatal_error = false;
1051 }
1052
1053 int wm_adsp_event(struct snd_soc_dapm_widget *w,
1054                   struct snd_kcontrol *kcontrol, int event)
1055 {
1056         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
1057         struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
1058         struct wm_adsp *dsp = &dsps[w->shift];
1059         int ret = 0;
1060
1061         switch (event) {
1062         case SND_SOC_DAPM_POST_PMU:
1063                 flush_work(&dsp->boot_work);
1064                 ret = cs_dsp_run(&dsp->cs_dsp);
1065                 break;
1066         case SND_SOC_DAPM_PRE_PMD:
1067                 cs_dsp_stop(&dsp->cs_dsp);
1068                 break;
1069         default:
1070                 break;
1071         }
1072
1073         return ret;
1074 }
1075 EXPORT_SYMBOL_GPL(wm_adsp_event);
1076
1077 int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *component)
1078 {
1079         char preload[32];
1080
1081         snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->cs_dsp.name);
1082         snd_soc_component_disable_pin(component, preload);
1083
1084         cs_dsp_init_debugfs(&dsp->cs_dsp, component->debugfs_root);
1085
1086         dsp->component = component;
1087
1088         return 0;
1089 }
1090 EXPORT_SYMBOL_GPL(wm_adsp2_component_probe);
1091
1092 int wm_adsp2_component_remove(struct wm_adsp *dsp, struct snd_soc_component *component)
1093 {
1094         cs_dsp_cleanup_debugfs(&dsp->cs_dsp);
1095
1096         return 0;
1097 }
1098 EXPORT_SYMBOL_GPL(wm_adsp2_component_remove);
1099
1100 int wm_adsp2_init(struct wm_adsp *dsp)
1101 {
1102         int ret;
1103
1104         INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
1105
1106         dsp->sys_config_size = sizeof(struct wm_adsp_system_config_xm_hdr);
1107         dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
1108
1109         ret = cs_dsp_adsp2_init(&dsp->cs_dsp);
1110         if (ret)
1111                 return ret;
1112
1113         return wm_adsp_common_init(dsp);
1114 }
1115 EXPORT_SYMBOL_GPL(wm_adsp2_init);
1116
1117 int wm_halo_init(struct wm_adsp *dsp)
1118 {
1119         int ret;
1120
1121         INIT_WORK(&dsp->boot_work, wm_adsp_boot_work);
1122
1123         dsp->sys_config_size = sizeof(struct wm_halo_system_config_xm_hdr);
1124         dsp->cs_dsp.client_ops = &wm_adsp2_client_ops;
1125
1126         ret = cs_dsp_halo_init(&dsp->cs_dsp);
1127         if (ret)
1128                 return ret;
1129
1130         return wm_adsp_common_init(dsp);
1131 }
1132 EXPORT_SYMBOL_GPL(wm_halo_init);
1133
1134 void wm_adsp2_remove(struct wm_adsp *dsp)
1135 {
1136         cs_dsp_remove(&dsp->cs_dsp);
1137 }
1138 EXPORT_SYMBOL_GPL(wm_adsp2_remove);
1139
1140 static inline int wm_adsp_compr_attached(struct wm_adsp_compr *compr)
1141 {
1142         return compr->buf != NULL;
1143 }
1144
1145 static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
1146 {
1147         struct wm_adsp_compr_buf *buf = NULL, *tmp;
1148
1149         if (compr->dsp->fatal_error)
1150                 return -EINVAL;
1151
1152         list_for_each_entry(tmp, &compr->dsp->buffer_list, list) {
1153                 if (!tmp->name || !strcmp(compr->name, tmp->name)) {
1154                         buf = tmp;
1155                         break;
1156                 }
1157         }
1158
1159         if (!buf)
1160                 return -EINVAL;
1161
1162         compr->buf = buf;
1163         buf->compr = compr;
1164
1165         return 0;
1166 }
1167
1168 static void wm_adsp_compr_detach(struct wm_adsp_compr *compr)
1169 {
1170         if (!compr)
1171                 return;
1172
1173         /* Wake the poll so it can see buffer is no longer attached */
1174         if (compr->stream)
1175                 snd_compr_fragment_elapsed(compr->stream);
1176
1177         if (wm_adsp_compr_attached(compr)) {
1178                 compr->buf->compr = NULL;
1179                 compr->buf = NULL;
1180         }
1181 }
1182
1183 int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
1184 {
1185         struct wm_adsp_compr *compr, *tmp;
1186         struct snd_soc_pcm_runtime *rtd = stream->private_data;
1187         int ret = 0;
1188
1189         mutex_lock(&dsp->cs_dsp.pwr_lock);
1190
1191         if (wm_adsp_fw[dsp->fw].num_caps == 0) {
1192                 adsp_err(dsp, "%s: Firmware does not support compressed API\n",
1193                          asoc_rtd_to_codec(rtd, 0)->name);
1194                 ret = -ENXIO;
1195                 goto out;
1196         }
1197
1198         if (wm_adsp_fw[dsp->fw].compr_direction != stream->direction) {
1199                 adsp_err(dsp, "%s: Firmware does not support stream direction\n",
1200                          asoc_rtd_to_codec(rtd, 0)->name);
1201                 ret = -EINVAL;
1202                 goto out;
1203         }
1204
1205         list_for_each_entry(tmp, &dsp->compr_list, list) {
1206                 if (!strcmp(tmp->name, asoc_rtd_to_codec(rtd, 0)->name)) {
1207                         adsp_err(dsp, "%s: Only a single stream supported per dai\n",
1208                                  asoc_rtd_to_codec(rtd, 0)->name);
1209                         ret = -EBUSY;
1210                         goto out;
1211                 }
1212         }
1213
1214         compr = kzalloc(sizeof(*compr), GFP_KERNEL);
1215         if (!compr) {
1216                 ret = -ENOMEM;
1217                 goto out;
1218         }
1219
1220         compr->dsp = dsp;
1221         compr->stream = stream;
1222         compr->name = asoc_rtd_to_codec(rtd, 0)->name;
1223
1224         list_add_tail(&compr->list, &dsp->compr_list);
1225
1226         stream->runtime->private_data = compr;
1227
1228 out:
1229         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1230
1231         return ret;
1232 }
1233 EXPORT_SYMBOL_GPL(wm_adsp_compr_open);
1234
1235 int wm_adsp_compr_free(struct snd_soc_component *component,
1236                        struct snd_compr_stream *stream)
1237 {
1238         struct wm_adsp_compr *compr = stream->runtime->private_data;
1239         struct wm_adsp *dsp = compr->dsp;
1240
1241         mutex_lock(&dsp->cs_dsp.pwr_lock);
1242
1243         wm_adsp_compr_detach(compr);
1244         list_del(&compr->list);
1245
1246         kfree(compr->raw_buf);
1247         kfree(compr);
1248
1249         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1250
1251         return 0;
1252 }
1253 EXPORT_SYMBOL_GPL(wm_adsp_compr_free);
1254
1255 static int wm_adsp_compr_check_params(struct snd_compr_stream *stream,
1256                                       struct snd_compr_params *params)
1257 {
1258         struct wm_adsp_compr *compr = stream->runtime->private_data;
1259         struct wm_adsp *dsp = compr->dsp;
1260         const struct wm_adsp_fw_caps *caps;
1261         const struct snd_codec_desc *desc;
1262         int i, j;
1263
1264         if (params->buffer.fragment_size < WM_ADSP_MIN_FRAGMENT_SIZE ||
1265             params->buffer.fragment_size > WM_ADSP_MAX_FRAGMENT_SIZE ||
1266             params->buffer.fragments < WM_ADSP_MIN_FRAGMENTS ||
1267             params->buffer.fragments > WM_ADSP_MAX_FRAGMENTS ||
1268             params->buffer.fragment_size % CS_DSP_DATA_WORD_SIZE) {
1269                 compr_err(compr, "Invalid buffer fragsize=%d fragments=%d\n",
1270                           params->buffer.fragment_size,
1271                           params->buffer.fragments);
1272
1273                 return -EINVAL;
1274         }
1275
1276         for (i = 0; i < wm_adsp_fw[dsp->fw].num_caps; i++) {
1277                 caps = &wm_adsp_fw[dsp->fw].caps[i];
1278                 desc = &caps->desc;
1279
1280                 if (caps->id != params->codec.id)
1281                         continue;
1282
1283                 if (stream->direction == SND_COMPRESS_PLAYBACK) {
1284                         if (desc->max_ch < params->codec.ch_out)
1285                                 continue;
1286                 } else {
1287                         if (desc->max_ch < params->codec.ch_in)
1288                                 continue;
1289                 }
1290
1291                 if (!(desc->formats & (1 << params->codec.format)))
1292                         continue;
1293
1294                 for (j = 0; j < desc->num_sample_rates; ++j)
1295                         if (desc->sample_rates[j] == params->codec.sample_rate)
1296                                 return 0;
1297         }
1298
1299         compr_err(compr, "Invalid params id=%u ch=%u,%u rate=%u fmt=%u\n",
1300                   params->codec.id, params->codec.ch_in, params->codec.ch_out,
1301                   params->codec.sample_rate, params->codec.format);
1302         return -EINVAL;
1303 }
1304
1305 static inline unsigned int wm_adsp_compr_frag_words(struct wm_adsp_compr *compr)
1306 {
1307         return compr->size.fragment_size / CS_DSP_DATA_WORD_SIZE;
1308 }
1309
1310 int wm_adsp_compr_set_params(struct snd_soc_component *component,
1311                              struct snd_compr_stream *stream,
1312                              struct snd_compr_params *params)
1313 {
1314         struct wm_adsp_compr *compr = stream->runtime->private_data;
1315         unsigned int size;
1316         int ret;
1317
1318         ret = wm_adsp_compr_check_params(stream, params);
1319         if (ret)
1320                 return ret;
1321
1322         compr->size = params->buffer;
1323
1324         compr_dbg(compr, "fragment_size=%d fragments=%d\n",
1325                   compr->size.fragment_size, compr->size.fragments);
1326
1327         size = wm_adsp_compr_frag_words(compr) * sizeof(*compr->raw_buf);
1328         compr->raw_buf = kmalloc(size, GFP_DMA | GFP_KERNEL);
1329         if (!compr->raw_buf)
1330                 return -ENOMEM;
1331
1332         compr->sample_rate = params->codec.sample_rate;
1333
1334         return 0;
1335 }
1336 EXPORT_SYMBOL_GPL(wm_adsp_compr_set_params);
1337
1338 int wm_adsp_compr_get_caps(struct snd_soc_component *component,
1339                            struct snd_compr_stream *stream,
1340                            struct snd_compr_caps *caps)
1341 {
1342         struct wm_adsp_compr *compr = stream->runtime->private_data;
1343         int fw = compr->dsp->fw;
1344         int i;
1345
1346         if (wm_adsp_fw[fw].caps) {
1347                 for (i = 0; i < wm_adsp_fw[fw].num_caps; i++)
1348                         caps->codecs[i] = wm_adsp_fw[fw].caps[i].id;
1349
1350                 caps->num_codecs = i;
1351                 caps->direction = wm_adsp_fw[fw].compr_direction;
1352
1353                 caps->min_fragment_size = WM_ADSP_MIN_FRAGMENT_SIZE;
1354                 caps->max_fragment_size = WM_ADSP_MAX_FRAGMENT_SIZE;
1355                 caps->min_fragments = WM_ADSP_MIN_FRAGMENTS;
1356                 caps->max_fragments = WM_ADSP_MAX_FRAGMENTS;
1357         }
1358
1359         return 0;
1360 }
1361 EXPORT_SYMBOL_GPL(wm_adsp_compr_get_caps);
1362
1363 static inline int wm_adsp_buffer_read(struct wm_adsp_compr_buf *buf,
1364                                       unsigned int field_offset, u32 *data)
1365 {
1366         return cs_dsp_read_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1367                                      buf->host_buf_ptr + field_offset, data);
1368 }
1369
1370 static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf,
1371                                        unsigned int field_offset, u32 data)
1372 {
1373         return cs_dsp_write_data_word(&buf->dsp->cs_dsp, buf->host_buf_mem_type,
1374                                       buf->host_buf_ptr + field_offset,
1375                                       data);
1376 }
1377
1378 static int wm_adsp_buffer_populate(struct wm_adsp_compr_buf *buf)
1379 {
1380         const struct wm_adsp_fw_caps *caps = wm_adsp_fw[buf->dsp->fw].caps;
1381         struct wm_adsp_buffer_region *region;
1382         u32 offset = 0;
1383         int i, ret;
1384
1385         buf->regions = kcalloc(caps->num_regions, sizeof(*buf->regions),
1386                                GFP_KERNEL);
1387         if (!buf->regions)
1388                 return -ENOMEM;
1389
1390         for (i = 0; i < caps->num_regions; ++i) {
1391                 region = &buf->regions[i];
1392
1393                 region->offset = offset;
1394                 region->mem_type = caps->region_defs[i].mem_type;
1395
1396                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].base_offset,
1397                                           &region->base_addr);
1398                 if (ret < 0)
1399                         goto err;
1400
1401                 ret = wm_adsp_buffer_read(buf, caps->region_defs[i].size_offset,
1402                                           &offset);
1403                 if (ret < 0)
1404                         goto err;
1405
1406                 region->cumulative_size = offset;
1407
1408                 compr_dbg(buf,
1409                           "region=%d type=%d base=%08x off=%08x size=%08x\n",
1410                           i, region->mem_type, region->base_addr,
1411                           region->offset, region->cumulative_size);
1412         }
1413
1414         return 0;
1415
1416 err:
1417         kfree(buf->regions);
1418         return ret;
1419 }
1420
1421 static void wm_adsp_buffer_clear(struct wm_adsp_compr_buf *buf)
1422 {
1423         buf->irq_count = 0xFFFFFFFF;
1424         buf->read_index = -1;
1425         buf->avail = 0;
1426 }
1427
1428 static struct wm_adsp_compr_buf *wm_adsp_buffer_alloc(struct wm_adsp *dsp)
1429 {
1430         struct wm_adsp_compr_buf *buf;
1431
1432         buf = kzalloc(sizeof(*buf), GFP_KERNEL);
1433         if (!buf)
1434                 return NULL;
1435
1436         buf->dsp = dsp;
1437
1438         wm_adsp_buffer_clear(buf);
1439
1440         return buf;
1441 }
1442
1443 static int wm_adsp_buffer_parse_legacy(struct wm_adsp *dsp)
1444 {
1445         struct cs_dsp_alg_region *alg_region;
1446         struct wm_adsp_compr_buf *buf;
1447         u32 xmalg, addr, magic;
1448         int i, ret;
1449
1450         alg_region = cs_dsp_find_alg_region(&dsp->cs_dsp, WMFW_ADSP2_XM, dsp->cs_dsp.fw_id);
1451         if (!alg_region) {
1452                 adsp_err(dsp, "No algorithm region found\n");
1453                 return -EINVAL;
1454         }
1455
1456         xmalg = dsp->sys_config_size / sizeof(__be32);
1457
1458         addr = alg_region->base + xmalg + ALG_XM_FIELD(magic);
1459         ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr, &magic);
1460         if (ret < 0)
1461                 return ret;
1462
1463         if (magic != WM_ADSP_ALG_XM_STRUCT_MAGIC)
1464                 return -ENODEV;
1465
1466         buf = wm_adsp_buffer_alloc(dsp);
1467         if (!buf)
1468                 return -ENOMEM;
1469
1470         addr = alg_region->base + xmalg + ALG_XM_FIELD(host_buf_ptr);
1471         for (i = 0; i < 5; ++i) {
1472                 ret = cs_dsp_read_data_word(&dsp->cs_dsp, WMFW_ADSP2_XM, addr,
1473                                             &buf->host_buf_ptr);
1474                 if (ret < 0)
1475                         goto err;
1476
1477                 if (buf->host_buf_ptr)
1478                         break;
1479
1480                 usleep_range(1000, 2000);
1481         }
1482
1483         if (!buf->host_buf_ptr) {
1484                 ret = -EIO;
1485                 goto err;
1486         }
1487
1488         buf->host_buf_mem_type = WMFW_ADSP2_XM;
1489
1490         ret = wm_adsp_buffer_populate(buf);
1491         if (ret < 0)
1492                 goto err;
1493
1494         list_add_tail(&buf->list, &dsp->buffer_list);
1495
1496         compr_dbg(buf, "legacy host_buf_ptr=%x\n", buf->host_buf_ptr);
1497
1498         return 0;
1499
1500 err:
1501         kfree(buf);
1502
1503         return ret;
1504 }
1505
1506 static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl)
1507 {
1508         struct wm_adsp_host_buf_coeff_v1 coeff_v1;
1509         struct wm_adsp_compr_buf *buf;
1510         struct wm_adsp *dsp = container_of(cs_ctl->dsp, struct wm_adsp, cs_dsp);
1511         unsigned int version = 0;
1512         int ret, i;
1513
1514         for (i = 0; i < 5; ++i) {
1515                 ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1,
1516                                              min(cs_ctl->len, sizeof(coeff_v1)));
1517                 if (ret < 0)
1518                         return ret;
1519
1520                 if (coeff_v1.host_buf_ptr)
1521                         break;
1522
1523                 usleep_range(1000, 2000);
1524         }
1525
1526         if (!coeff_v1.host_buf_ptr) {
1527                 adsp_err(dsp, "Failed to acquire host buffer\n");
1528                 return -EIO;
1529         }
1530
1531         buf = wm_adsp_buffer_alloc(dsp);
1532         if (!buf)
1533                 return -ENOMEM;
1534
1535         buf->host_buf_mem_type = cs_ctl->alg_region.type;
1536         buf->host_buf_ptr = be32_to_cpu(coeff_v1.host_buf_ptr);
1537
1538         ret = wm_adsp_buffer_populate(buf);
1539         if (ret < 0)
1540                 goto err;
1541
1542         /*
1543          * v0 host_buffer coefficients didn't have versioning, so if the
1544          * control is one word, assume version 0.
1545          */
1546         if (cs_ctl->len == 4)
1547                 goto done;
1548
1549         version = be32_to_cpu(coeff_v1.versions) & HOST_BUF_COEFF_COMPAT_VER_MASK;
1550         version >>= HOST_BUF_COEFF_COMPAT_VER_SHIFT;
1551
1552         if (version > HOST_BUF_COEFF_SUPPORTED_COMPAT_VER) {
1553                 adsp_err(dsp,
1554                          "Host buffer coeff ver %u > supported version %u\n",
1555                          version, HOST_BUF_COEFF_SUPPORTED_COMPAT_VER);
1556                 ret = -EINVAL;
1557                 goto err;
1558         }
1559
1560         cs_dsp_remove_padding((u32 *)&coeff_v1.name, ARRAY_SIZE(coeff_v1.name));
1561
1562         buf->name = kasprintf(GFP_KERNEL, "%s-dsp-%s", dsp->part,
1563                               (char *)&coeff_v1.name);
1564
1565 done:
1566         list_add_tail(&buf->list, &dsp->buffer_list);
1567
1568         compr_dbg(buf, "host_buf_ptr=%x coeff version %u\n",
1569                   buf->host_buf_ptr, version);
1570
1571         return version;
1572
1573 err:
1574         kfree(buf);
1575
1576         return ret;
1577 }
1578
1579 static int wm_adsp_buffer_init(struct wm_adsp *dsp)
1580 {
1581         struct cs_dsp_coeff_ctl *cs_ctl;
1582         int ret;
1583
1584         list_for_each_entry(cs_ctl, &dsp->cs_dsp.ctl_list, list) {
1585                 if (cs_ctl->type != WMFW_CTL_TYPE_HOST_BUFFER)
1586                         continue;
1587
1588                 if (!cs_ctl->enabled)
1589                         continue;
1590
1591                 ret = wm_adsp_buffer_parse_coeff(cs_ctl);
1592                 if (ret < 0) {
1593                         adsp_err(dsp, "Failed to parse coeff: %d\n", ret);
1594                         goto error;
1595                 } else if (ret == 0) {
1596                         /* Only one buffer supported for version 0 */
1597                         return 0;
1598                 }
1599         }
1600
1601         if (list_empty(&dsp->buffer_list)) {
1602                 /* Fall back to legacy support */
1603                 ret = wm_adsp_buffer_parse_legacy(dsp);
1604                 if (ret == -ENODEV)
1605                         adsp_info(dsp, "Legacy support not available\n");
1606                 else if (ret)
1607                         adsp_warn(dsp, "Failed to parse legacy: %d\n", ret);
1608         }
1609
1610         return 0;
1611
1612 error:
1613         wm_adsp_buffer_free(dsp);
1614         return ret;
1615 }
1616
1617 static int wm_adsp_buffer_free(struct wm_adsp *dsp)
1618 {
1619         struct wm_adsp_compr_buf *buf, *tmp;
1620
1621         list_for_each_entry_safe(buf, tmp, &dsp->buffer_list, list) {
1622                 wm_adsp_compr_detach(buf->compr);
1623
1624                 kfree(buf->name);
1625                 kfree(buf->regions);
1626                 list_del(&buf->list);
1627                 kfree(buf);
1628         }
1629
1630         return 0;
1631 }
1632
1633 static int wm_adsp_buffer_get_error(struct wm_adsp_compr_buf *buf)
1634 {
1635         int ret;
1636
1637         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(error), &buf->error);
1638         if (ret < 0) {
1639                 compr_err(buf, "Failed to check buffer error: %d\n", ret);
1640                 return ret;
1641         }
1642         if (buf->error != 0) {
1643                 compr_err(buf, "Buffer error occurred: %d\n", buf->error);
1644                 return -EIO;
1645         }
1646
1647         return 0;
1648 }
1649
1650 int wm_adsp_compr_trigger(struct snd_soc_component *component,
1651                           struct snd_compr_stream *stream, int cmd)
1652 {
1653         struct wm_adsp_compr *compr = stream->runtime->private_data;
1654         struct wm_adsp *dsp = compr->dsp;
1655         int ret = 0;
1656
1657         compr_dbg(compr, "Trigger: %d\n", cmd);
1658
1659         mutex_lock(&dsp->cs_dsp.pwr_lock);
1660
1661         switch (cmd) {
1662         case SNDRV_PCM_TRIGGER_START:
1663                 if (!wm_adsp_compr_attached(compr)) {
1664                         ret = wm_adsp_compr_attach(compr);
1665                         if (ret < 0) {
1666                                 compr_err(compr, "Failed to link buffer and stream: %d\n",
1667                                           ret);
1668                                 break;
1669                         }
1670                 }
1671
1672                 ret = wm_adsp_buffer_get_error(compr->buf);
1673                 if (ret < 0)
1674                         break;
1675
1676                 /* Trigger the IRQ at one fragment of data */
1677                 ret = wm_adsp_buffer_write(compr->buf,
1678                                            HOST_BUFFER_FIELD(high_water_mark),
1679                                            wm_adsp_compr_frag_words(compr));
1680                 if (ret < 0) {
1681                         compr_err(compr, "Failed to set high water mark: %d\n",
1682                                   ret);
1683                         break;
1684                 }
1685                 break;
1686         case SNDRV_PCM_TRIGGER_STOP:
1687                 if (wm_adsp_compr_attached(compr))
1688                         wm_adsp_buffer_clear(compr->buf);
1689                 break;
1690         default:
1691                 ret = -EINVAL;
1692                 break;
1693         }
1694
1695         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1696
1697         return ret;
1698 }
1699 EXPORT_SYMBOL_GPL(wm_adsp_compr_trigger);
1700
1701 static inline int wm_adsp_buffer_size(struct wm_adsp_compr_buf *buf)
1702 {
1703         int last_region = wm_adsp_fw[buf->dsp->fw].caps->num_regions - 1;
1704
1705         return buf->regions[last_region].cumulative_size;
1706 }
1707
1708 static int wm_adsp_buffer_update_avail(struct wm_adsp_compr_buf *buf)
1709 {
1710         u32 next_read_index, next_write_index;
1711         int write_index, read_index, avail;
1712         int ret;
1713
1714         /* Only sync read index if we haven't already read a valid index */
1715         if (buf->read_index < 0) {
1716                 ret = wm_adsp_buffer_read(buf,
1717                                 HOST_BUFFER_FIELD(next_read_index),
1718                                 &next_read_index);
1719                 if (ret < 0)
1720                         return ret;
1721
1722                 read_index = sign_extend32(next_read_index, 23);
1723
1724                 if (read_index < 0) {
1725                         compr_dbg(buf, "Avail check on unstarted stream\n");
1726                         return 0;
1727                 }
1728
1729                 buf->read_index = read_index;
1730         }
1731
1732         ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(next_write_index),
1733                         &next_write_index);
1734         if (ret < 0)
1735                 return ret;
1736
1737         write_index = sign_extend32(next_write_index, 23);
1738
1739         avail = write_index - buf->read_index;
1740         if (avail < 0)
1741                 avail += wm_adsp_buffer_size(buf);
1742
1743         compr_dbg(buf, "readindex=0x%x, writeindex=0x%x, avail=%d\n",
1744                   buf->read_index, write_index, avail * CS_DSP_DATA_WORD_SIZE);
1745
1746         buf->avail = avail;
1747
1748         return 0;
1749 }
1750
1751 int wm_adsp_compr_handle_irq(struct wm_adsp *dsp)
1752 {
1753         struct wm_adsp_compr_buf *buf;
1754         struct wm_adsp_compr *compr;
1755         int ret = 0;
1756
1757         mutex_lock(&dsp->cs_dsp.pwr_lock);
1758
1759         if (list_empty(&dsp->buffer_list)) {
1760                 ret = -ENODEV;
1761                 goto out;
1762         }
1763
1764         adsp_dbg(dsp, "Handling buffer IRQ\n");
1765
1766         list_for_each_entry(buf, &dsp->buffer_list, list) {
1767                 compr = buf->compr;
1768
1769                 ret = wm_adsp_buffer_get_error(buf);
1770                 if (ret < 0)
1771                         goto out_notify; /* Wake poll to report error */
1772
1773                 ret = wm_adsp_buffer_read(buf, HOST_BUFFER_FIELD(irq_count),
1774                                           &buf->irq_count);
1775                 if (ret < 0) {
1776                         compr_err(buf, "Failed to get irq_count: %d\n", ret);
1777                         goto out;
1778                 }
1779
1780                 ret = wm_adsp_buffer_update_avail(buf);
1781                 if (ret < 0) {
1782                         compr_err(buf, "Error reading avail: %d\n", ret);
1783                         goto out;
1784                 }
1785
1786                 if (wm_adsp_fw[dsp->fw].voice_trigger && buf->irq_count == 2)
1787                         ret = WM_ADSP_COMPR_VOICE_TRIGGER;
1788
1789 out_notify:
1790                 if (compr && compr->stream)
1791                         snd_compr_fragment_elapsed(compr->stream);
1792         }
1793
1794 out:
1795         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1796
1797         return ret;
1798 }
1799 EXPORT_SYMBOL_GPL(wm_adsp_compr_handle_irq);
1800
1801 static int wm_adsp_buffer_reenable_irq(struct wm_adsp_compr_buf *buf)
1802 {
1803         if (buf->irq_count & 0x01)
1804                 return 0;
1805
1806         compr_dbg(buf, "Enable IRQ(0x%x) for next fragment\n", buf->irq_count);
1807
1808         buf->irq_count |= 0x01;
1809
1810         return wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(irq_ack),
1811                                     buf->irq_count);
1812 }
1813
1814 int wm_adsp_compr_pointer(struct snd_soc_component *component,
1815                           struct snd_compr_stream *stream,
1816                           struct snd_compr_tstamp *tstamp)
1817 {
1818         struct wm_adsp_compr *compr = stream->runtime->private_data;
1819         struct wm_adsp *dsp = compr->dsp;
1820         struct wm_adsp_compr_buf *buf;
1821         int ret = 0;
1822
1823         compr_dbg(compr, "Pointer request\n");
1824
1825         mutex_lock(&dsp->cs_dsp.pwr_lock);
1826
1827         buf = compr->buf;
1828
1829         if (dsp->fatal_error || !buf || buf->error) {
1830                 snd_compr_stop_error(stream, SNDRV_PCM_STATE_XRUN);
1831                 ret = -EIO;
1832                 goto out;
1833         }
1834
1835         if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1836                 ret = wm_adsp_buffer_update_avail(buf);
1837                 if (ret < 0) {
1838                         compr_err(compr, "Error reading avail: %d\n", ret);
1839                         goto out;
1840                 }
1841
1842                 /*
1843                  * If we really have less than 1 fragment available tell the
1844                  * DSP to inform us once a whole fragment is available.
1845                  */
1846                 if (buf->avail < wm_adsp_compr_frag_words(compr)) {
1847                         ret = wm_adsp_buffer_get_error(buf);
1848                         if (ret < 0) {
1849                                 if (buf->error)
1850                                         snd_compr_stop_error(stream,
1851                                                         SNDRV_PCM_STATE_XRUN);
1852                                 goto out;
1853                         }
1854
1855                         ret = wm_adsp_buffer_reenable_irq(buf);
1856                         if (ret < 0) {
1857                                 compr_err(compr, "Failed to re-enable buffer IRQ: %d\n",
1858                                           ret);
1859                                 goto out;
1860                         }
1861                 }
1862         }
1863
1864         tstamp->copied_total = compr->copied_total;
1865         tstamp->copied_total += buf->avail * CS_DSP_DATA_WORD_SIZE;
1866         tstamp->sampling_rate = compr->sample_rate;
1867
1868 out:
1869         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1870
1871         return ret;
1872 }
1873 EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer);
1874
1875 static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target)
1876 {
1877         struct wm_adsp_compr_buf *buf = compr->buf;
1878         unsigned int adsp_addr;
1879         int mem_type, nwords, max_read;
1880         int i, ret;
1881
1882         /* Calculate read parameters */
1883         for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i)
1884                 if (buf->read_index < buf->regions[i].cumulative_size)
1885                         break;
1886
1887         if (i == wm_adsp_fw[buf->dsp->fw].caps->num_regions)
1888                 return -EINVAL;
1889
1890         mem_type = buf->regions[i].mem_type;
1891         adsp_addr = buf->regions[i].base_addr +
1892                     (buf->read_index - buf->regions[i].offset);
1893
1894         max_read = wm_adsp_compr_frag_words(compr);
1895         nwords = buf->regions[i].cumulative_size - buf->read_index;
1896
1897         if (nwords > target)
1898                 nwords = target;
1899         if (nwords > buf->avail)
1900                 nwords = buf->avail;
1901         if (nwords > max_read)
1902                 nwords = max_read;
1903         if (!nwords)
1904                 return 0;
1905
1906         /* Read data from DSP */
1907         ret = cs_dsp_read_raw_data_block(&buf->dsp->cs_dsp, mem_type, adsp_addr,
1908                                          nwords, (__be32 *)compr->raw_buf);
1909         if (ret < 0)
1910                 return ret;
1911
1912         cs_dsp_remove_padding(compr->raw_buf, nwords);
1913
1914         /* update read index to account for words read */
1915         buf->read_index += nwords;
1916         if (buf->read_index == wm_adsp_buffer_size(buf))
1917                 buf->read_index = 0;
1918
1919         ret = wm_adsp_buffer_write(buf, HOST_BUFFER_FIELD(next_read_index),
1920                                    buf->read_index);
1921         if (ret < 0)
1922                 return ret;
1923
1924         /* update avail to account for words read */
1925         buf->avail -= nwords;
1926
1927         return nwords;
1928 }
1929
1930 static int wm_adsp_compr_read(struct wm_adsp_compr *compr,
1931                               char __user *buf, size_t count)
1932 {
1933         struct wm_adsp *dsp = compr->dsp;
1934         int ntotal = 0;
1935         int nwords, nbytes;
1936
1937         compr_dbg(compr, "Requested read of %zu bytes\n", count);
1938
1939         if (dsp->fatal_error || !compr->buf || compr->buf->error) {
1940                 snd_compr_stop_error(compr->stream, SNDRV_PCM_STATE_XRUN);
1941                 return -EIO;
1942         }
1943
1944         count /= CS_DSP_DATA_WORD_SIZE;
1945
1946         do {
1947                 nwords = wm_adsp_buffer_capture_block(compr, count);
1948                 if (nwords < 0) {
1949                         compr_err(compr, "Failed to capture block: %d\n",
1950                                   nwords);
1951                         return nwords;
1952                 }
1953
1954                 nbytes = nwords * CS_DSP_DATA_WORD_SIZE;
1955
1956                 compr_dbg(compr, "Read %d bytes\n", nbytes);
1957
1958                 if (copy_to_user(buf + ntotal, compr->raw_buf, nbytes)) {
1959                         compr_err(compr, "Failed to copy data to user: %d, %d\n",
1960                                   ntotal, nbytes);
1961                         return -EFAULT;
1962                 }
1963
1964                 count -= nwords;
1965                 ntotal += nbytes;
1966         } while (nwords > 0 && count > 0);
1967
1968         compr->copied_total += ntotal;
1969
1970         return ntotal;
1971 }
1972
1973 int wm_adsp_compr_copy(struct snd_soc_component *component,
1974                        struct snd_compr_stream *stream, char __user *buf,
1975                        size_t count)
1976 {
1977         struct wm_adsp_compr *compr = stream->runtime->private_data;
1978         struct wm_adsp *dsp = compr->dsp;
1979         int ret;
1980
1981         mutex_lock(&dsp->cs_dsp.pwr_lock);
1982
1983         if (stream->direction == SND_COMPRESS_CAPTURE)
1984                 ret = wm_adsp_compr_read(compr, buf, count);
1985         else
1986                 ret = -ENOTSUPP;
1987
1988         mutex_unlock(&dsp->cs_dsp.pwr_lock);
1989
1990         return ret;
1991 }
1992 EXPORT_SYMBOL_GPL(wm_adsp_compr_copy);
1993
1994 static void wm_adsp_fatal_error(struct cs_dsp *cs_dsp)
1995 {
1996         struct wm_adsp *dsp = container_of(cs_dsp, struct wm_adsp, cs_dsp);
1997         struct wm_adsp_compr *compr;
1998
1999         dsp->fatal_error = true;
2000
2001         list_for_each_entry(compr, &dsp->compr_list, list) {
2002                 if (compr->stream)
2003                         snd_compr_fragment_elapsed(compr->stream);
2004         }
2005 }
2006
2007 irqreturn_t wm_adsp2_bus_error(int irq, void *data)
2008 {
2009         struct wm_adsp *dsp = (struct wm_adsp *)data;
2010
2011         cs_dsp_adsp2_bus_error(&dsp->cs_dsp);
2012
2013         return IRQ_HANDLED;
2014 }
2015 EXPORT_SYMBOL_GPL(wm_adsp2_bus_error);
2016
2017 irqreturn_t wm_halo_bus_error(int irq, void *data)
2018 {
2019         struct wm_adsp *dsp = (struct wm_adsp *)data;
2020
2021         cs_dsp_halo_bus_error(&dsp->cs_dsp);
2022
2023         return IRQ_HANDLED;
2024 }
2025 EXPORT_SYMBOL_GPL(wm_halo_bus_error);
2026
2027 irqreturn_t wm_halo_wdt_expire(int irq, void *data)
2028 {
2029         struct wm_adsp *dsp = data;
2030
2031         cs_dsp_halo_wdt_expire(&dsp->cs_dsp);
2032
2033         return IRQ_HANDLED;
2034 }
2035 EXPORT_SYMBOL_GPL(wm_halo_wdt_expire);
2036
2037 static const struct cs_dsp_client_ops wm_adsp1_client_ops = {
2038         .control_add = wm_adsp_control_add,
2039         .control_remove = wm_adsp_control_remove,
2040 };
2041
2042 static const struct cs_dsp_client_ops wm_adsp2_client_ops = {
2043         .control_add = wm_adsp_control_add,
2044         .control_remove = wm_adsp_control_remove,
2045         .post_run = wm_adsp_event_post_run,
2046         .post_stop = wm_adsp_event_post_stop,
2047         .watchdog_expired = wm_adsp_fatal_error,
2048 };
2049
2050 MODULE_LICENSE("GPL v2");