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