sound/soc/sh/rcar/core.c

   1 /*
   2  * Renesas R-Car SRU/SCU/SSIU/SSI support
   3  *
   4  * Copyright (C) 2013 Renesas Solutions Corp.
   5  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
   6  *
   7  * Based on fsi.c
   8  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 /*
  16  * Renesas R-Car sound device structure
  17  *
  18  * Gen1
  19  *
  20  * SRU          : Sound Routing Unit
  21  *  - SRC       : Sampling Rate Converter
  22  *  - CMD
  23  *    - CTU     : Channel Count Conversion Unit
  24  *    - MIX     : Mixer
  25  *    - DVC     : Digital Volume and Mute Function
  26  *  - SSI       : Serial Sound Interface
  27  *
  28  * Gen2
  29  *
  30  * SCU          : Sampling Rate Converter Unit
  31  *  - SRC       : Sampling Rate Converter
  32  *  - CMD
  33  *   - CTU      : Channel Count Conversion Unit
  34  *   - MIX      : Mixer
  35  *   - DVC      : Digital Volume and Mute Function
  36  * SSIU         : Serial Sound Interface Unit
  37  *  - SSI       : Serial Sound Interface
  38  */
  39
  40 /*
  41  *      driver data Image
  42  *
  43  * rsnd_priv
  44  *   |
  45  *   | ** this depends on Gen1/Gen2
  46  *   |
  47  *   +- gen
  48  *   |
  49  *   | ** these depend on data path
  50  *   | ** gen and platform data control it
  51  *   |
  52  *   +- rdai[0]
  53  *   |   |               sru     ssiu      ssi
  54  *   |   +- playback -> [mod] -> [mod] -> [mod] -> ...
  55  *   |   |
  56  *   |   |               sru     ssiu      ssi
  57  *   |   +- capture  -> [mod] -> [mod] -> [mod] -> ...
  58  *   |
  59  *   +- rdai[1]
  60  *   |   |               sru     ssiu      ssi
  61  *   |   +- playback -> [mod] -> [mod] -> [mod] -> ...
  62  *   |   |
  63  *   |   |               sru     ssiu      ssi
  64  *   |   +- capture  -> [mod] -> [mod] -> [mod] -> ...
  65  *   ...
  66  *   |
  67  *   | ** these control ssi
  68  *   |
  69  *   +- ssi
  70  *   |  |
  71  *   |  +- ssi[0]
  72  *   |  +- ssi[1]
  73  *   |  +- ssi[2]
  74  *   |  ...
  75  *   |
  76  *   | ** these control src
  77  *   |
  78  *   +- src
  79  *      |
  80  *      +- src[0]
  81  *      +- src[1]
  82  *      +- src[2]
  83  *      ...
  84  *
  85  *
  86  * for_each_rsnd_dai(xx, priv, xx)
  87  *  rdai[0] => rdai[1] => rdai[2] => ...
  88  *
  89  * for_each_rsnd_mod(xx, rdai, xx)
  90  *  [mod] => [mod] => [mod] => ...
  91  *
  92  * rsnd_dai_call(xxx, fn )
  93  *  [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
  94  *
  95  */
  96
  97 /*
  98  * you can enable below define if you don't need
  99  * DAI status debug message when debugging
 100  * see rsnd_dbg_dai_call()
 101  *
 102  * #define RSND_DEBUG_NO_DAI_CALL 1
 103  */
 104
 105 #include <linux/pm_runtime.h>
 106 #include "rsnd.h"
 107
 108 #define RSND_RATES SNDRV_PCM_RATE_8000_192000
 109 #define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
 110
 111 static const struct of_device_id rsnd_of_match[] = {
 112         { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 },
 113         { .compatible = "renesas,rcar_sound-gen2", .data = (void *)RSND_GEN2 },
 114         { .compatible = "renesas,rcar_sound-gen3", .data = (void *)RSND_GEN2 }, /* gen2 compatible */
 115         {},
 116 };
 117 MODULE_DEVICE_TABLE(of, rsnd_of_match);
 118
 119 /*
 120  *      rsnd_mod functions
 121  */
 122 void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
 123 {
 124         if (mod->type != type) {
 125                 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 126                 struct device *dev = rsnd_priv_to_dev(priv);
 127
 128                 dev_warn(dev, "%s[%d] is not your expected module\n",
 129                          rsnd_mod_name(mod), rsnd_mod_id(mod));
 130         }
 131 }
 132
 133 struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
 134                                   struct rsnd_mod *mod)
 135 {
 136         if (!mod || !mod->ops || !mod->ops->dma_req)
 137                 return NULL;
 138
 139         return mod->ops->dma_req(io, mod);
 140 }
 141
 142 u32 *rsnd_mod_get_status(struct rsnd_dai_stream *io,
 143                          struct rsnd_mod *mod,
 144                          enum rsnd_mod_type type)
 145 {
 146         return &mod->status;
 147 }
 148
 149 int rsnd_mod_init(struct rsnd_priv *priv,
 150                   struct rsnd_mod *mod,
 151                   struct rsnd_mod_ops *ops,
 152                   struct clk *clk,
 153                   u32* (*get_status)(struct rsnd_dai_stream *io,
 154                                      struct rsnd_mod *mod,
 155                                      enum rsnd_mod_type type),
 156                   enum rsnd_mod_type type,
 157                   int id)
 158 {
 159         int ret = clk_prepare(clk);
 160
 161         if (ret)
 162                 return ret;
 163
 164         mod->id         = id;
 165         mod->ops        = ops;
 166         mod->type       = type;
 167         mod->clk        = clk;
 168         mod->priv       = priv;
 169         mod->get_status = get_status;
 170
 171         return ret;
 172 }
 173
 174 void rsnd_mod_quit(struct rsnd_mod *mod)
 175 {
 176         clk_unprepare(mod->clk);
 177         mod->clk = NULL;
 178 }
 179
 180 void rsnd_mod_interrupt(struct rsnd_mod *mod,
 181                         void (*callback)(struct rsnd_mod *mod,
 182                                          struct rsnd_dai_stream *io))
 183 {
 184         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 185         struct rsnd_dai_stream *io;
 186         struct rsnd_dai *rdai;
 187         int i;
 188
 189         for_each_rsnd_dai(rdai, priv, i) {
 190                 io = &rdai->playback;
 191                 if (mod == io->mod[mod->type])
 192                         callback(mod, io);
 193
 194                 io = &rdai->capture;
 195                 if (mod == io->mod[mod->type])
 196                         callback(mod, io);
 197         }
 198 }
 199
 200 int rsnd_io_is_working(struct rsnd_dai_stream *io)
 201 {
 202         /* see rsnd_dai_stream_init/quit() */
 203         if (io->substream)
 204                 return snd_pcm_running(io->substream);
 205
 206         return 0;
 207 }
 208
 209 int rsnd_runtime_channel_original_with_params(struct rsnd_dai_stream *io,
 210                                               struct snd_pcm_hw_params *params)
 211 {
 212         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 213
 214         /*
 215          * params will be added when refine
 216          * see
 217          *      __rsnd_soc_hw_rule_rate()
 218          *      __rsnd_soc_hw_rule_channels()
 219          */
 220         if (params)
 221                 return params_channels(params);
 222         else
 223                 return runtime->channels;
 224 }
 225
 226 int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io,
 227                                                struct snd_pcm_hw_params *params)
 228 {
 229         int chan = rsnd_runtime_channel_original_with_params(io, params);
 230         struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io);
 231
 232         if (ctu_mod) {
 233                 u32 converted_chan = rsnd_ctu_converted_channel(ctu_mod);
 234
 235                 if (converted_chan)
 236                         return converted_chan;
 237         }
 238
 239         return chan;
 240 }
 241
 242 int rsnd_runtime_channel_for_ssi_with_params(struct rsnd_dai_stream *io,
 243                                              struct snd_pcm_hw_params *params)
 244 {
 245         struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
 246         int chan = rsnd_io_is_play(io) ?
 247                 rsnd_runtime_channel_after_ctu_with_params(io, params) :
 248                 rsnd_runtime_channel_original_with_params(io, params);
 249
 250         /* Use Multi SSI */
 251         if (rsnd_runtime_is_ssi_multi(io))
 252                 chan /= rsnd_rdai_ssi_lane_get(rdai);
 253
 254         /* TDM Extend Mode needs 8ch */
 255         if (chan == 6)
 256                 chan = 8;
 257
 258         return chan;
 259 }
 260
 261 int rsnd_runtime_is_ssi_multi(struct rsnd_dai_stream *io)
 262 {
 263         struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
 264         int lane = rsnd_rdai_ssi_lane_get(rdai);
 265         int chan = rsnd_io_is_play(io) ?
 266                 rsnd_runtime_channel_after_ctu(io) :
 267                 rsnd_runtime_channel_original(io);
 268
 269         return (chan > 2) && (lane > 1);
 270 }
 271
 272 int rsnd_runtime_is_ssi_tdm(struct rsnd_dai_stream *io)
 273 {
 274         return rsnd_runtime_channel_for_ssi(io) >= 6;
 275 }
 276
 277 /*
 278  *      ADINR function
 279  */
 280 u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 281 {
 282         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 283         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 284         struct device *dev = rsnd_priv_to_dev(priv);
 285
 286         switch (snd_pcm_format_width(runtime->format)) {
 287         case 16:
 288                 return 8 << 16;
 289         case 24:
 290                 return 0 << 16;
 291         }
 292
 293         dev_warn(dev, "not supported sample bits\n");
 294
 295         return 0;
 296 }
 297
 298 /*
 299  *      DALIGN function
 300  */
 301 u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 302 {
 303         struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
 304         struct rsnd_mod *target;
 305         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 306
 307         /*
 308          * *Hardware* L/R and *Software* L/R are inverted for 16bit data.
 309          *          31..16 15...0
 310          *      HW: [L ch] [R ch]
 311          *      SW: [R ch] [L ch]
 312          * We need to care about inversion timing to control
 313          * Playback/Capture correctly.
 314          * The point is [DVC] needs *Hardware* L/R, [MEM] needs *Software* L/R
 315          *
 316          * sL/R : software L/R
 317          * hL/R : hardware L/R
 318          * (*)  : conversion timing
 319          *
 320          * Playback
 321          *           sL/R (*) hL/R     hL/R     hL/R      hL/R     hL/R
 322          *      [MEM] -> [SRC] -> [DVC] -> [CMD] -> [SSIU] -> [SSI] -> codec
 323          *
 324          * Capture
 325          *           hL/R     hL/R      hL/R     hL/R     hL/R (*) sL/R
 326          *      codec -> [SSI] -> [SSIU] -> [SRC] -> [DVC] -> [CMD] -> [MEM]
 327          */
 328         if (rsnd_io_is_play(io)) {
 329                 struct rsnd_mod *src = rsnd_io_to_mod_src(io);
 330
 331                 target = src ? src : ssiu;
 332         } else {
 333                 struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
 334
 335                 target = cmd ? cmd : ssiu;
 336         }
 337
 338         /* Non target mod or 24bit data needs normal DALIGN */
 339         if ((snd_pcm_format_width(runtime->format) != 16) ||
 340             (mod != target))
 341                 return 0x76543210;
 342         /* Target mod needs inverted DALIGN when 16bit */
 343         else
 344                 return 0x67452301;
 345 }
 346
 347 u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
 348 {
 349         enum rsnd_mod_type playback_mods[] = {
 350                 RSND_MOD_SRC,
 351                 RSND_MOD_CMD,
 352                 RSND_MOD_SSIU,
 353         };
 354         enum rsnd_mod_type capture_mods[] = {
 355                 RSND_MOD_CMD,
 356                 RSND_MOD_SRC,
 357                 RSND_MOD_SSIU,
 358         };
 359         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 360         struct rsnd_mod *tmod = NULL;
 361         enum rsnd_mod_type *mods =
 362                 rsnd_io_is_play(io) ?
 363                 playback_mods : capture_mods;
 364         int i;
 365
 366         /*
 367          * This is needed for 24bit data
 368          * We need to shift 8bit
 369          *
 370          * Linux 24bit data is located as 0x00******
 371          * HW    24bit data is located as 0x******00
 372          *
 373          */
 374         if (snd_pcm_format_width(runtime->format) == 16)
 375                 return 0;
 376
 377         for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
 378                 tmod = rsnd_io_to_mod(io, mods[i]);
 379                 if (tmod)
 380                         break;
 381         }
 382
 383         if (tmod != mod)
 384                 return 0;
 385
 386         if (rsnd_io_is_play(io))
 387                 return  (0 << 20) | /* shift to Left */
 388                         (8 << 16);  /* 8bit */
 389         else
 390                 return  (1 << 20) | /* shift to Right */
 391                         (8 << 16);  /* 8bit */
 392 }
 393
 394 /*
 395  *      rsnd_dai functions
 396  */
 397 struct rsnd_mod *rsnd_mod_next(int *iterator,
 398                                struct rsnd_dai_stream *io,
 399                                enum rsnd_mod_type *array,
 400                                int array_size)
 401 {
 402         struct rsnd_mod *mod;
 403         enum rsnd_mod_type type;
 404         int max = array ? array_size : RSND_MOD_MAX;
 405
 406         for (; *iterator < max; (*iterator)++) {
 407                 type = (array) ? array[*iterator] : *iterator;
 408                 mod = rsnd_io_to_mod(io, type);
 409                 if (mod)
 410                         return mod;
 411         }
 412
 413         return NULL;
 414 }
 415
 416 static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
 417         {
 418                 /* CAPTURE */
 419                 RSND_MOD_AUDMAPP,
 420                 RSND_MOD_AUDMA,
 421                 RSND_MOD_DVC,
 422                 RSND_MOD_MIX,
 423                 RSND_MOD_CTU,
 424                 RSND_MOD_CMD,
 425                 RSND_MOD_SRC,
 426                 RSND_MOD_SSIU,
 427                 RSND_MOD_SSIM3,
 428                 RSND_MOD_SSIM2,
 429                 RSND_MOD_SSIM1,
 430                 RSND_MOD_SSIP,
 431                 RSND_MOD_SSI,
 432         }, {
 433                 /* PLAYBACK */
 434                 RSND_MOD_AUDMAPP,
 435                 RSND_MOD_AUDMA,
 436                 RSND_MOD_SSIM3,
 437                 RSND_MOD_SSIM2,
 438                 RSND_MOD_SSIM1,
 439                 RSND_MOD_SSIP,
 440                 RSND_MOD_SSI,
 441                 RSND_MOD_SSIU,
 442                 RSND_MOD_DVC,
 443                 RSND_MOD_MIX,
 444                 RSND_MOD_CTU,
 445                 RSND_MOD_CMD,
 446                 RSND_MOD_SRC,
 447         },
 448 };
 449
 450 static int rsnd_status_update(u32 *status,
 451                               int shift, int add, int timing)
 452 {
 453         u32 mask        = 0xF << shift;
 454         u8 val          = (*status >> shift) & 0xF;
 455         u8 next_val     = (val + add) & 0xF;
 456         int func_call   = (val == timing);
 457
 458         if (next_val == 0xF) /* underflow case */
 459                 func_call = 0;
 460         else
 461                 *status = (*status & ~mask) + (next_val << shift);
 462
 463         return func_call;
 464 }
 465
 466 #define rsnd_dai_call(fn, io, param...)                                 \
 467 ({                                                                      \
 468         struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io));     \
 469         struct rsnd_mod *mod;                                           \
 470         int is_play = rsnd_io_is_play(io);                              \
 471         int ret = 0, i;                                                 \
 472         enum rsnd_mod_type *types = rsnd_mod_sequence[is_play];         \
 473         for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) {     \
 474                 int tmp = 0;                                            \
 475                 u32 *status = mod->get_status(io, mod, types[i]);       \
 476                 int func_call = rsnd_status_update(status,              \
 477                                                 __rsnd_mod_shift_##fn,  \
 478                                                 __rsnd_mod_add_##fn,    \
 479                                                 __rsnd_mod_call_##fn);  \
 480                 rsnd_dbg_dai_call(dev, "%s[%d]\t0x%08x %s\n",           \
 481                         rsnd_mod_name(mod), rsnd_mod_id(mod), *status,  \
 482                         (func_call && (mod)->ops->fn) ? #fn : "");      \
 483                 if (func_call && (mod)->ops->fn)                        \
 484                         tmp = (mod)->ops->fn(mod, io, param);           \
 485                 if (tmp)                                                \
 486                         dev_err(dev, "%s[%d] : %s error %d\n",          \
 487                                 rsnd_mod_name(mod), rsnd_mod_id(mod),   \
 488                                                      #fn, tmp);         \
 489                 ret |= tmp;                                             \
 490         }                                                               \
 491         ret;                                                            \
 492 })
 493
 494 int rsnd_dai_connect(struct rsnd_mod *mod,
 495                      struct rsnd_dai_stream *io,
 496                      enum rsnd_mod_type type)
 497 {
 498         struct rsnd_priv *priv;
 499         struct device *dev;
 500
 501         if (!mod)
 502                 return -EIO;
 503
 504         if (io->mod[type] == mod)
 505                 return 0;
 506
 507         if (io->mod[type])
 508                 return -EINVAL;
 509
 510         priv = rsnd_mod_to_priv(mod);
 511         dev = rsnd_priv_to_dev(priv);
 512
 513         io->mod[type] = mod;
 514
 515         dev_dbg(dev, "%s[%d] is connected to io (%s)\n",
 516                 rsnd_mod_name(mod), rsnd_mod_id(mod),
 517                 rsnd_io_is_play(io) ? "Playback" : "Capture");
 518
 519         return 0;
 520 }
 521
 522 static void rsnd_dai_disconnect(struct rsnd_mod *mod,
 523                                 struct rsnd_dai_stream *io,
 524                                 enum rsnd_mod_type type)
 525 {
 526         io->mod[type] = NULL;
 527 }
 528
 529 int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
 530                             int max_channels)
 531 {
 532         if (max_channels > 0)
 533                 rdai->max_channels = max_channels;
 534
 535         return rdai->max_channels;
 536 }
 537
 538 int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
 539                             int ssi_lane)
 540 {
 541         if (ssi_lane > 0)
 542                 rdai->ssi_lane = ssi_lane;
 543
 544         return rdai->ssi_lane;
 545 }
 546
 547 struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
 548 {
 549         if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
 550                 return NULL;
 551
 552         return priv->rdai + id;
 553 }
 554
 555 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
 556 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
 557 {
 558         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
 559
 560         return rsnd_rdai_get(priv, dai->id);
 561 }
 562
 563 /*
 564  *      rsnd_soc_dai functions
 565  */
 566 void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
 567 {
 568         struct snd_pcm_substream *substream = io->substream;
 569
 570         /*
 571          * this function should be called...
 572          *
 573          * - if rsnd_dai_pointer_update() returns true
 574          * - without spin lock
 575          */
 576
 577         snd_pcm_period_elapsed(substream);
 578 }
 579
 580 static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
 581                                 struct snd_pcm_substream *substream)
 582 {
 583         io->substream           = substream;
 584 }
 585
 586 static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
 587 {
 588         io->substream           = NULL;
 589 }
 590
 591 static
 592 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
 593 {
 594         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 595
 596         return  rtd->cpu_dai;
 597 }
 598
 599 static
 600 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
 601                                         struct snd_pcm_substream *substream)
 602 {
 603         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 604                 return &rdai->playback;
 605         else
 606                 return &rdai->capture;
 607 }
 608
 609 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 610                             struct snd_soc_dai *dai)
 611 {
 612         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
 613         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 614         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 615         int ret;
 616         unsigned long flags;
 617
 618         spin_lock_irqsave(&priv->lock, flags);
 619
 620         switch (cmd) {
 621         case SNDRV_PCM_TRIGGER_START:
 622         case SNDRV_PCM_TRIGGER_RESUME:
 623                 ret = rsnd_dai_call(init, io, priv);
 624                 if (ret < 0)
 625                         goto dai_trigger_end;
 626
 627                 ret = rsnd_dai_call(start, io, priv);
 628                 if (ret < 0)
 629                         goto dai_trigger_end;
 630
 631                 ret = rsnd_dai_call(irq, io, priv, 1);
 632                 if (ret < 0)
 633                         goto dai_trigger_end;
 634
 635                 break;
 636         case SNDRV_PCM_TRIGGER_STOP:
 637         case SNDRV_PCM_TRIGGER_SUSPEND:
 638                 ret = rsnd_dai_call(irq, io, priv, 0);
 639
 640                 ret |= rsnd_dai_call(stop, io, priv);
 641
 642                 ret |= rsnd_dai_call(quit, io, priv);
 643
 644                 break;
 645         default:
 646                 ret = -EINVAL;
 647         }
 648
 649 dai_trigger_end:
 650         spin_unlock_irqrestore(&priv->lock, flags);
 651
 652         return ret;
 653 }
 654
 655 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 656 {
 657         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 658
 659         /* set master/slave audio interface */
 660         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 661         case SND_SOC_DAIFMT_CBM_CFM:
 662                 rdai->clk_master = 0;
 663                 break;
 664         case SND_SOC_DAIFMT_CBS_CFS:
 665                 rdai->clk_master = 1; /* codec is slave, cpu is master */
 666                 break;
 667         default:
 668                 return -EINVAL;
 669         }
 670
 671         /* set format */
 672         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 673         case SND_SOC_DAIFMT_I2S:
 674                 rdai->sys_delay = 0;
 675                 rdai->data_alignment = 0;
 676                 rdai->frm_clk_inv = 0;
 677                 break;
 678         case SND_SOC_DAIFMT_LEFT_J:
 679                 rdai->sys_delay = 1;
 680                 rdai->data_alignment = 0;
 681                 rdai->frm_clk_inv = 1;
 682                 break;
 683         case SND_SOC_DAIFMT_RIGHT_J:
 684                 rdai->sys_delay = 1;
 685                 rdai->data_alignment = 1;
 686                 rdai->frm_clk_inv = 1;
 687                 break;
 688         }
 689
 690         /* set clock inversion */
 691         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 692         case SND_SOC_DAIFMT_NB_IF:
 693                 rdai->frm_clk_inv = !rdai->frm_clk_inv;
 694                 break;
 695         case SND_SOC_DAIFMT_IB_NF:
 696                 rdai->bit_clk_inv = !rdai->bit_clk_inv;
 697                 break;
 698         case SND_SOC_DAIFMT_IB_IF:
 699                 rdai->bit_clk_inv = !rdai->bit_clk_inv;
 700                 rdai->frm_clk_inv = !rdai->frm_clk_inv;
 701                 break;
 702         case SND_SOC_DAIFMT_NB_NF:
 703         default:
 704                 break;
 705         }
 706
 707         return 0;
 708 }
 709
 710 static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
 711                                      u32 tx_mask, u32 rx_mask,
 712                                      int slots, int slot_width)
 713 {
 714         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
 715         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 716         struct device *dev = rsnd_priv_to_dev(priv);
 717
 718         switch (slots) {
 719         case 2:
 720         case 6:
 721         case 8:
 722                 /* TDM Extend Mode */
 723                 rsnd_rdai_channels_set(rdai, slots);
 724                 rsnd_rdai_ssi_lane_set(rdai, 1);
 725                 break;
 726         default:
 727                 dev_err(dev, "unsupported TDM slots (%d)\n", slots);
 728                 return -EINVAL;
 729         }
 730
 731         return 0;
 732 }
 733
 734 static unsigned int rsnd_soc_hw_channels_list[] = {
 735         2, 6, 8,
 736 };
 737
 738 static unsigned int rsnd_soc_hw_rate_list[] = {
 739           8000,
 740          11025,
 741          16000,
 742          22050,
 743          32000,
 744          44100,
 745          48000,
 746          64000,
 747          88200,
 748          96000,
 749         176400,
 750         192000,
 751 };
 752
 753 static int rsnd_soc_hw_rule(struct rsnd_priv *priv,
 754                             unsigned int *list, int list_num,
 755                             struct snd_interval *baseline, struct snd_interval *iv)
 756 {
 757         struct snd_interval p;
 758         unsigned int rate;
 759         int i;
 760
 761         snd_interval_any(&p);
 762         p.min = UINT_MAX;
 763         p.max = 0;
 764
 765         for (i = 0; i < list_num; i++) {
 766
 767                 if (!snd_interval_test(iv, list[i]))
 768                         continue;
 769
 770                 rate = rsnd_ssi_clk_query(priv,
 771                                           baseline->min, list[i], NULL);
 772                 if (rate > 0) {
 773                         p.min = min(p.min, list[i]);
 774                         p.max = max(p.max, list[i]);
 775                 }
 776
 777                 rate = rsnd_ssi_clk_query(priv,
 778                                           baseline->max, list[i], NULL);
 779                 if (rate > 0) {
 780                         p.min = min(p.min, list[i]);
 781                         p.max = max(p.max, list[i]);
 782                 }
 783         }
 784
 785         return snd_interval_refine(iv, &p);
 786 }
 787
 788 static int __rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params,
 789                                    struct snd_pcm_hw_rule *rule,
 790                                    int is_play)
 791 {
 792         struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
 793         struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
 794         struct snd_interval ic;
 795         struct snd_soc_dai *dai = rule->private;
 796         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 797         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
 798         struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture;
 799
 800         /*
 801          * possible sampling rate limitation is same as
 802          * 2ch if it supports multi ssi
 803          * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
 804          */
 805         ic = *ic_;
 806         ic.min =
 807         ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
 808
 809         return rsnd_soc_hw_rule(priv, rsnd_soc_hw_rate_list,
 810                                 ARRAY_SIZE(rsnd_soc_hw_rate_list),
 811                                 &ic, ir);
 812 }
 813
 814 static int rsnd_soc_hw_rule_rate_playback(struct snd_pcm_hw_params *params,
 815                                  struct snd_pcm_hw_rule *rule)
 816 {
 817         return __rsnd_soc_hw_rule_rate(params, rule, 1);
 818 }
 819
 820 static int rsnd_soc_hw_rule_rate_capture(struct snd_pcm_hw_params *params,
 821                                           struct snd_pcm_hw_rule *rule)
 822 {
 823         return __rsnd_soc_hw_rule_rate(params, rule, 0);
 824 }
 825
 826 static int __rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params,
 827                                        struct snd_pcm_hw_rule *rule,
 828                                        int is_play)
 829 {
 830         struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
 831         struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
 832         struct snd_interval ic;
 833         struct snd_soc_dai *dai = rule->private;
 834         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 835         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
 836         struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture;
 837
 838         /*
 839          * possible sampling rate limitation is same as
 840          * 2ch if it supports multi ssi
 841          * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
 842          */
 843         ic = *ic_;
 844         ic.min =
 845         ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
 846
 847         return rsnd_soc_hw_rule(priv, rsnd_soc_hw_channels_list,
 848                                 ARRAY_SIZE(rsnd_soc_hw_channels_list),
 849                                 ir, &ic);
 850 }
 851
 852 static int rsnd_soc_hw_rule_channels_playback(struct snd_pcm_hw_params *params,
 853                                               struct snd_pcm_hw_rule *rule)
 854 {
 855         return __rsnd_soc_hw_rule_channels(params, rule, 1);
 856 }
 857
 858 static int rsnd_soc_hw_rule_channels_capture(struct snd_pcm_hw_params *params,
 859                                              struct snd_pcm_hw_rule *rule)
 860 {
 861         return __rsnd_soc_hw_rule_channels(params, rule, 0);
 862 }
 863
 864 static const struct snd_pcm_hardware rsnd_pcm_hardware = {
 865         .info =         SNDRV_PCM_INFO_INTERLEAVED      |
 866                         SNDRV_PCM_INFO_MMAP             |
 867                         SNDRV_PCM_INFO_MMAP_VALID,
 868         .buffer_bytes_max       = 64 * 1024,
 869         .period_bytes_min       = 32,
 870         .period_bytes_max       = 8192,
 871         .periods_min            = 1,
 872         .periods_max            = 32,
 873         .fifo_size              = 256,
 874 };
 875
 876 static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
 877                                 struct snd_soc_dai *dai)
 878 {
 879         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 880         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
 881         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 882         struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
 883         struct snd_pcm_runtime *runtime = substream->runtime;
 884         unsigned int max_channels = rsnd_rdai_channels_get(rdai);
 885         int ret;
 886         int i;
 887
 888         rsnd_dai_stream_init(io, substream);
 889
 890         /*
 891          * Channel Limitation
 892          * It depends on Platform design
 893          */
 894         constraint->list        = rsnd_soc_hw_channels_list;
 895         constraint->count       = 0;
 896         constraint->mask        = 0;
 897
 898         for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) {
 899                 if (rsnd_soc_hw_channels_list[i] > max_channels)
 900                         break;
 901                 constraint->count = i + 1;
 902         }
 903
 904         snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
 905
 906         snd_pcm_hw_constraint_list(runtime, 0,
 907                                    SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
 908
 909         snd_pcm_hw_constraint_integer(runtime,
 910                                       SNDRV_PCM_HW_PARAM_PERIODS);
 911
 912         /*
 913          * Sampling Rate / Channel Limitation
 914          * It depends on Clock Master Mode
 915          */
 916         if (rsnd_rdai_is_clk_master(rdai)) {
 917                 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
 918
 919                 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 920                                     is_play ? rsnd_soc_hw_rule_rate_playback :
 921                                               rsnd_soc_hw_rule_rate_capture,
 922                                     dai,
 923                                     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
 924                 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 925                                     is_play ? rsnd_soc_hw_rule_channels_playback :
 926                                               rsnd_soc_hw_rule_channels_capture,
 927                                     dai,
 928                                     SNDRV_PCM_HW_PARAM_RATE, -1);
 929         }
 930
 931         /*
 932          * call rsnd_dai_call without spinlock
 933          */
 934         ret = rsnd_dai_call(nolock_start, io, priv);
 935         if (ret < 0)
 936                 rsnd_dai_call(nolock_stop, io, priv);
 937
 938         return ret;
 939 }
 940
 941 static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
 942                                   struct snd_soc_dai *dai)
 943 {
 944         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 945         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
 946         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 947
 948         /*
 949          * call rsnd_dai_call without spinlock
 950          */
 951         rsnd_dai_call(nolock_stop, io, priv);
 952
 953         rsnd_dai_stream_quit(io);
 954 }
 955
 956 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
 957         .startup        = rsnd_soc_dai_startup,
 958         .shutdown       = rsnd_soc_dai_shutdown,
 959         .trigger        = rsnd_soc_dai_trigger,
 960         .set_fmt        = rsnd_soc_dai_set_fmt,
 961         .set_tdm_slot   = rsnd_soc_set_dai_tdm_slot,
 962 };
 963
 964 void rsnd_parse_connect_common(struct rsnd_dai *rdai,
 965                 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
 966                 struct device_node *node,
 967                 struct device_node *playback,
 968                 struct device_node *capture)
 969 {
 970         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
 971         struct device_node *np;
 972         struct rsnd_mod *mod;
 973         int i;
 974
 975         if (!node)
 976                 return;
 977
 978         i = 0;
 979         for_each_child_of_node(node, np) {
 980                 mod = mod_get(priv, i);
 981                 if (np == playback)
 982                         rsnd_dai_connect(mod, &rdai->playback, mod->type);
 983                 if (np == capture)
 984                         rsnd_dai_connect(mod, &rdai->capture, mod->type);
 985                 i++;
 986         }
 987
 988         of_node_put(node);
 989 }
 990
 991 static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv,
 992                                             int *is_graph)
 993 {
 994         struct device *dev = rsnd_priv_to_dev(priv);
 995         struct device_node *np = dev->of_node;
 996         struct device_node *dai_node;
 997         struct device_node *ret;
 998
 999         *is_graph = 0;
1000
1001         /*
1002          * parse both previous dai (= rcar_sound,dai), and
1003          * graph dai (= ports/port)
1004          */
1005         dai_node = of_get_child_by_name(np, RSND_NODE_DAI);
1006         if (dai_node) {
1007                 ret = dai_node;
1008                 goto of_node_compatible;
1009         }
1010
1011         ret = np;
1012
1013         dai_node = of_graph_get_next_endpoint(np, NULL);
1014         if (dai_node)
1015                 goto of_node_graph;
1016
1017         return NULL;
1018
1019 of_node_graph:
1020         *is_graph = 1;
1021 of_node_compatible:
1022         of_node_put(dai_node);
1023
1024         return ret;
1025 }
1026
1027 static void __rsnd_dai_probe(struct rsnd_priv *priv,
1028                              struct device_node *dai_np,
1029                              int dai_i)
1030 {
1031         struct device_node *playback, *capture;
1032         struct rsnd_dai_stream *io_playback;
1033         struct rsnd_dai_stream *io_capture;
1034         struct snd_soc_dai_driver *drv;
1035         struct rsnd_dai *rdai;
1036         struct device *dev = rsnd_priv_to_dev(priv);
1037         int io_i;
1038
1039         rdai            = rsnd_rdai_get(priv, dai_i);
1040         drv             = priv->daidrv + dai_i;
1041         io_playback     = &rdai->playback;
1042         io_capture      = &rdai->capture;
1043
1044         snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
1045
1046         rdai->priv      = priv;
1047         drv->name       = rdai->name;
1048         drv->ops        = &rsnd_soc_dai_ops;
1049
1050         snprintf(rdai->playback.name, RSND_DAI_NAME_SIZE,
1051                  "DAI%d Playback", dai_i);
1052         drv->playback.rates             = RSND_RATES;
1053         drv->playback.formats           = RSND_FMTS;
1054         drv->playback.channels_min      = 2;
1055         drv->playback.channels_max      = 8;
1056         drv->playback.stream_name       = rdai->playback.name;
1057
1058         snprintf(rdai->capture.name, RSND_DAI_NAME_SIZE,
1059                  "DAI%d Capture", dai_i);
1060         drv->capture.rates              = RSND_RATES;
1061         drv->capture.formats            = RSND_FMTS;
1062         drv->capture.channels_min       = 2;
1063         drv->capture.channels_max       = 8;
1064         drv->capture.stream_name        = rdai->capture.name;
1065
1066         rdai->playback.rdai             = rdai;
1067         rdai->capture.rdai              = rdai;
1068         rsnd_rdai_channels_set(rdai, 2); /* default 2ch */
1069         rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */
1070
1071         for (io_i = 0;; io_i++) {
1072                 playback = of_parse_phandle(dai_np, "playback", io_i);
1073                 capture  = of_parse_phandle(dai_np, "capture", io_i);
1074
1075                 if (!playback && !capture)
1076                         break;
1077
1078                 rsnd_parse_connect_ssi(rdai, playback, capture);
1079                 rsnd_parse_connect_src(rdai, playback, capture);
1080                 rsnd_parse_connect_ctu(rdai, playback, capture);
1081                 rsnd_parse_connect_mix(rdai, playback, capture);
1082                 rsnd_parse_connect_dvc(rdai, playback, capture);
1083
1084                 of_node_put(playback);
1085                 of_node_put(capture);
1086         }
1087
1088         dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
1089                 rsnd_io_to_mod_ssi(io_playback) ? "play"    : " -- ",
1090                 rsnd_io_to_mod_ssi(io_capture) ? "capture" : "  --   ");
1091 }
1092
1093 static int rsnd_dai_probe(struct rsnd_priv *priv)
1094 {
1095         struct device_node *dai_node;
1096         struct device_node *dai_np;
1097         struct snd_soc_dai_driver *rdrv;
1098         struct device *dev = rsnd_priv_to_dev(priv);
1099         struct rsnd_dai *rdai;
1100         int nr;
1101         int is_graph;
1102         int dai_i;
1103
1104         dai_node = rsnd_dai_of_node(priv, &is_graph);
1105         if (is_graph)
1106                 nr = of_graph_get_endpoint_count(dai_node);
1107         else
1108                 nr = of_get_child_count(dai_node);
1109
1110         if (!nr)
1111                 return -EINVAL;
1112
1113         rdrv = devm_kzalloc(dev, sizeof(*rdrv) * nr, GFP_KERNEL);
1114         rdai = devm_kzalloc(dev, sizeof(*rdai) * nr, GFP_KERNEL);
1115         if (!rdrv || !rdai)
1116                 return -ENOMEM;
1117
1118         priv->rdai_nr   = nr;
1119         priv->daidrv    = rdrv;
1120         priv->rdai      = rdai;
1121
1122         /*
1123          * parse all dai
1124          */
1125         dai_i = 0;
1126         if (is_graph) {
1127                 for_each_endpoint_of_node(dai_node, dai_np) {
1128                         __rsnd_dai_probe(priv, dai_np, dai_i);
1129                         rsnd_ssi_parse_hdmi_connection(priv, dai_np, dai_i);
1130                         dai_i++;
1131                 }
1132         } else {
1133                 for_each_child_of_node(dai_node, dai_np)
1134                         __rsnd_dai_probe(priv, dai_np, dai_i++);
1135         }
1136
1137         return 0;
1138 }
1139
1140 /*
1141  *              pcm ops
1142  */
1143 static int rsnd_hw_params(struct snd_pcm_substream *substream,
1144                          struct snd_pcm_hw_params *hw_params)
1145 {
1146         struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1147         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1148         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1149         int ret;
1150
1151         ret = rsnd_dai_call(hw_params, io, substream, hw_params);
1152         if (ret)
1153                 return ret;
1154
1155         return snd_pcm_lib_malloc_pages(substream,
1156                                         params_buffer_bytes(hw_params));
1157 }
1158
1159 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
1160 {
1161         struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1162         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1163         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1164         snd_pcm_uframes_t pointer = 0;
1165
1166         rsnd_dai_call(pointer, io, &pointer);
1167
1168         return pointer;
1169 }
1170
1171 static const struct snd_pcm_ops rsnd_pcm_ops = {
1172         .ioctl          = snd_pcm_lib_ioctl,
1173         .hw_params      = rsnd_hw_params,
1174         .hw_free        = snd_pcm_lib_free_pages,
1175         .pointer        = rsnd_pointer,
1176 };
1177
1178 /*
1179  *              snd_kcontrol
1180  */
1181 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
1182                            struct snd_ctl_elem_info *uinfo)
1183 {
1184         struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1185
1186         if (cfg->texts) {
1187                 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1188                 uinfo->count = cfg->size;
1189                 uinfo->value.enumerated.items = cfg->max;
1190                 if (uinfo->value.enumerated.item >= cfg->max)
1191                         uinfo->value.enumerated.item = cfg->max - 1;
1192                 strlcpy(uinfo->value.enumerated.name,
1193                         cfg->texts[uinfo->value.enumerated.item],
1194                         sizeof(uinfo->value.enumerated.name));
1195         } else {
1196                 uinfo->count = cfg->size;
1197                 uinfo->value.integer.min = 0;
1198                 uinfo->value.integer.max = cfg->max;
1199                 uinfo->type = (cfg->max == 1) ?
1200                         SNDRV_CTL_ELEM_TYPE_BOOLEAN :
1201                         SNDRV_CTL_ELEM_TYPE_INTEGER;
1202         }
1203
1204         return 0;
1205 }
1206
1207 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
1208                           struct snd_ctl_elem_value *uc)
1209 {
1210         struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1211         int i;
1212
1213         for (i = 0; i < cfg->size; i++)
1214                 if (cfg->texts)
1215                         uc->value.enumerated.item[i] = cfg->val[i];
1216                 else
1217                         uc->value.integer.value[i] = cfg->val[i];
1218
1219         return 0;
1220 }
1221
1222 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1223                           struct snd_ctl_elem_value *uc)
1224 {
1225         struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1226         int i, change = 0;
1227
1228         if (!cfg->accept(cfg->io))
1229                 return 0;
1230
1231         for (i = 0; i < cfg->size; i++) {
1232                 if (cfg->texts) {
1233                         change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1234                         cfg->val[i] = uc->value.enumerated.item[i];
1235                 } else {
1236                         change |= (uc->value.integer.value[i] != cfg->val[i]);
1237                         cfg->val[i] = uc->value.integer.value[i];
1238                 }
1239         }
1240
1241         if (change && cfg->update)
1242                 cfg->update(cfg->io, cfg->mod);
1243
1244         return change;
1245 }
1246
1247 int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
1248 {
1249         return 1;
1250 }
1251
1252 int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
1253 {
1254         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
1255
1256         return !!runtime;
1257 }
1258
1259 struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
1260 {
1261         cfg->cfg.val = cfg->val;
1262
1263         return &cfg->cfg;
1264 }
1265
1266 struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg)
1267 {
1268         cfg->cfg.val = &cfg->val;
1269
1270         return &cfg->cfg;
1271 }
1272
1273 const char * const volume_ramp_rate[] = {
1274         "128 dB/1 step",         /* 00000 */
1275         "64 dB/1 step",          /* 00001 */
1276         "32 dB/1 step",          /* 00010 */
1277         "16 dB/1 step",          /* 00011 */
1278         "8 dB/1 step",           /* 00100 */
1279         "4 dB/1 step",           /* 00101 */
1280         "2 dB/1 step",           /* 00110 */
1281         "1 dB/1 step",           /* 00111 */
1282         "0.5 dB/1 step",         /* 01000 */
1283         "0.25 dB/1 step",        /* 01001 */
1284         "0.125 dB/1 step",       /* 01010 = VOLUME_RAMP_MAX_MIX */
1285         "0.125 dB/2 steps",      /* 01011 */
1286         "0.125 dB/4 steps",      /* 01100 */
1287         "0.125 dB/8 steps",      /* 01101 */
1288         "0.125 dB/16 steps",     /* 01110 */
1289         "0.125 dB/32 steps",     /* 01111 */
1290         "0.125 dB/64 steps",     /* 10000 */
1291         "0.125 dB/128 steps",    /* 10001 */
1292         "0.125 dB/256 steps",    /* 10010 */
1293         "0.125 dB/512 steps",    /* 10011 */
1294         "0.125 dB/1024 steps",   /* 10100 */
1295         "0.125 dB/2048 steps",   /* 10101 */
1296         "0.125 dB/4096 steps",   /* 10110 */
1297         "0.125 dB/8192 steps",   /* 10111 = VOLUME_RAMP_MAX_DVC */
1298 };
1299
1300 int rsnd_kctrl_new(struct rsnd_mod *mod,
1301                    struct rsnd_dai_stream *io,
1302                    struct snd_soc_pcm_runtime *rtd,
1303                    const unsigned char *name,
1304                    int (*accept)(struct rsnd_dai_stream *io),
1305                    void (*update)(struct rsnd_dai_stream *io,
1306                                   struct rsnd_mod *mod),
1307                    struct rsnd_kctrl_cfg *cfg,
1308                    const char * const *texts,
1309                    int size,
1310                    u32 max)
1311 {
1312         struct snd_card *card = rtd->card->snd_card;
1313         struct snd_kcontrol *kctrl;
1314         struct snd_kcontrol_new knew = {
1315                 .iface          = SNDRV_CTL_ELEM_IFACE_MIXER,
1316                 .name           = name,
1317                 .info           = rsnd_kctrl_info,
1318                 .index          = rtd->num,
1319                 .get            = rsnd_kctrl_get,
1320                 .put            = rsnd_kctrl_put,
1321         };
1322         int ret;
1323
1324         if (size > RSND_MAX_CHANNELS)
1325                 return -EINVAL;
1326
1327         kctrl = snd_ctl_new1(&knew, cfg);
1328         if (!kctrl)
1329                 return -ENOMEM;
1330
1331         ret = snd_ctl_add(card, kctrl);
1332         if (ret < 0)
1333                 return ret;
1334
1335         cfg->texts      = texts;
1336         cfg->max        = max;
1337         cfg->size       = size;
1338         cfg->accept     = accept;
1339         cfg->update     = update;
1340         cfg->card       = card;
1341         cfg->kctrl      = kctrl;
1342         cfg->io         = io;
1343         cfg->mod        = mod;
1344
1345         return 0;
1346 }
1347
1348 /*
1349  *              snd_soc_component
1350  */
1351
1352 #define PREALLOC_BUFFER         (32 * 1024)
1353 #define PREALLOC_BUFFER_MAX     (32 * 1024)
1354
1355 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
1356 {
1357         struct snd_soc_dai *dai = rtd->cpu_dai;
1358         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1359         int ret;
1360
1361         ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1362         if (ret)
1363                 return ret;
1364
1365         ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1366         if (ret)
1367                 return ret;
1368
1369         return snd_pcm_lib_preallocate_pages_for_all(
1370                 rtd->pcm,
1371                 SNDRV_DMA_TYPE_DEV,
1372                 rtd->card->snd_card->dev,
1373                 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1374 }
1375
1376 static const struct snd_soc_component_driver rsnd_soc_component = {
1377         .ops            = &rsnd_pcm_ops,
1378         .pcm_new        = rsnd_pcm_new,
1379         .name           = "rsnd",
1380 };
1381
1382 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1383                                        struct rsnd_dai_stream *io)
1384 {
1385         int ret;
1386
1387         ret = rsnd_dai_call(probe, io, priv);
1388         if (ret == -EAGAIN) {
1389                 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
1390                 struct rsnd_mod *mod;
1391                 int i;
1392
1393                 /*
1394                  * Fallback to PIO mode
1395                  */
1396
1397                 /*
1398                  * call "remove" for SSI/SRC/DVC
1399                  * SSI will be switch to PIO mode if it was DMA mode
1400                  * see
1401                  *      rsnd_dma_init()
1402                  *      rsnd_ssi_fallback()
1403                  */
1404                 rsnd_dai_call(remove, io, priv);
1405
1406                 /*
1407                  * remove all mod from io
1408                  * and, re connect ssi
1409                  */
1410                 for_each_rsnd_mod(i, mod, io)
1411                         rsnd_dai_disconnect(mod, io, i);
1412                 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
1413
1414                 /*
1415                  * fallback
1416                  */
1417                 rsnd_dai_call(fallback, io, priv);
1418
1419                 /*
1420                  * retry to "probe".
1421                  * DAI has SSI which is PIO mode only now.
1422                  */
1423                 ret = rsnd_dai_call(probe, io, priv);
1424         }
1425
1426         return ret;
1427 }
1428
1429 /*
1430  *      rsnd probe
1431  */
1432 static int rsnd_probe(struct platform_device *pdev)
1433 {
1434         struct rsnd_priv *priv;
1435         struct device *dev = &pdev->dev;
1436         struct rsnd_dai *rdai;
1437         int (*probe_func[])(struct rsnd_priv *priv) = {
1438                 rsnd_gen_probe,
1439                 rsnd_dma_probe,
1440                 rsnd_ssi_probe,
1441                 rsnd_ssiu_probe,
1442                 rsnd_src_probe,
1443                 rsnd_ctu_probe,
1444                 rsnd_mix_probe,
1445                 rsnd_dvc_probe,
1446                 rsnd_cmd_probe,
1447                 rsnd_adg_probe,
1448                 rsnd_dai_probe,
1449         };
1450         int ret, i;
1451
1452         /*
1453          *      init priv data
1454          */
1455         priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1456         if (!priv)
1457                 return -ENODEV;
1458
1459         priv->pdev      = pdev;
1460         priv->flags     = (unsigned long)of_device_get_match_data(dev);
1461         spin_lock_init(&priv->lock);
1462
1463         /*
1464          *      init each module
1465          */
1466         for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1467                 ret = probe_func[i](priv);
1468                 if (ret)
1469                         return ret;
1470         }
1471
1472         for_each_rsnd_dai(rdai, priv, i) {
1473                 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1474                 if (ret)
1475                         goto exit_snd_probe;
1476
1477                 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
1478                 if (ret)
1479                         goto exit_snd_probe;
1480         }
1481
1482         dev_set_drvdata(dev, priv);
1483
1484         /*
1485          *      asoc register
1486          */
1487         ret = devm_snd_soc_register_component(dev, &rsnd_soc_component,
1488                                          priv->daidrv, rsnd_rdai_nr(priv));
1489         if (ret < 0) {
1490                 dev_err(dev, "cannot snd dai register\n");
1491                 goto exit_snd_probe;
1492         }
1493
1494         pm_runtime_enable(dev);
1495
1496         dev_info(dev, "probed\n");
1497         return ret;
1498
1499 exit_snd_probe:
1500         for_each_rsnd_dai(rdai, priv, i) {
1501                 rsnd_dai_call(remove, &rdai->playback, priv);
1502                 rsnd_dai_call(remove, &rdai->capture, priv);
1503         }
1504
1505         return ret;
1506 }
1507
1508 static int rsnd_remove(struct platform_device *pdev)
1509 {
1510         struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
1511         struct rsnd_dai *rdai;
1512         void (*remove_func[])(struct rsnd_priv *priv) = {
1513                 rsnd_ssi_remove,
1514                 rsnd_ssiu_remove,
1515                 rsnd_src_remove,
1516                 rsnd_ctu_remove,
1517                 rsnd_mix_remove,
1518                 rsnd_dvc_remove,
1519                 rsnd_cmd_remove,
1520                 rsnd_adg_remove,
1521         };
1522         int ret = 0, i;
1523
1524         snd_soc_disconnect_sync(&pdev->dev);
1525
1526         pm_runtime_disable(&pdev->dev);
1527
1528         for_each_rsnd_dai(rdai, priv, i) {
1529                 ret |= rsnd_dai_call(remove, &rdai->playback, priv);
1530                 ret |= rsnd_dai_call(remove, &rdai->capture, priv);
1531         }
1532
1533         for (i = 0; i < ARRAY_SIZE(remove_func); i++)
1534                 remove_func[i](priv);
1535
1536         return ret;
1537 }
1538
1539 static int __maybe_unused rsnd_suspend(struct device *dev)
1540 {
1541         struct rsnd_priv *priv = dev_get_drvdata(dev);
1542
1543         rsnd_adg_clk_disable(priv);
1544
1545         return 0;
1546 }
1547
1548 static int __maybe_unused rsnd_resume(struct device *dev)
1549 {
1550         struct rsnd_priv *priv = dev_get_drvdata(dev);
1551
1552         rsnd_adg_clk_enable(priv);
1553
1554         return 0;
1555 }
1556
1557 static const struct dev_pm_ops rsnd_pm_ops = {
1558         SET_SYSTEM_SLEEP_PM_OPS(rsnd_suspend, rsnd_resume)
1559 };
1560
1561 static struct platform_driver rsnd_driver = {
1562         .driver = {
1563                 .name   = "rcar_sound",
1564                 .pm     = &rsnd_pm_ops,
1565                 .of_match_table = rsnd_of_match,
1566         },
1567         .probe          = rsnd_probe,
1568         .remove         = rsnd_remove,
1569 };
1570 module_platform_driver(rsnd_driver);
1571
1572 MODULE_LICENSE("GPL");
1573 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1574 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1575 MODULE_ALIAS("platform:rcar-pcm-audio");