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 case 16: 730 /* TDM Extend Mode */ 731 rsnd_rdai_channels_set(rdai, slots); 732 rsnd_rdai_ssi_lane_set(rdai, 1); 733 break; 734 default: 735 dev_err(dev, "unsupported TDM slots (%d)\n", slots); 736 return -EINVAL; 737 } 738 739 return 0; 740 } 741 742 static unsigned int rsnd_soc_hw_channels_list[] = { 743 2, 6, 8, 16, 744 }; 745 746 static unsigned int rsnd_soc_hw_rate_list[] = { 747 8000, 748 11025, 749 16000, 750 22050, 751 32000, 752 44100, 753 48000, 754 64000, 755 88200, 756 96000, 757 176400, 758 192000, 759 }; 760 761 static int rsnd_soc_hw_rule(struct rsnd_priv *priv, 762 unsigned int *list, int list_num, 763 struct snd_interval *baseline, struct snd_interval *iv) 764 { 765 struct snd_interval p; 766 unsigned int rate; 767 int i; 768 769 snd_interval_any(&p); 770 p.min = UINT_MAX; 771 p.max = 0; 772 773 for (i = 0; i < list_num; i++) { 774 775 if (!snd_interval_test(iv, list[i])) 776 continue; 777 778 rate = rsnd_ssi_clk_query(priv, 779 baseline->min, list[i], NULL); 780 if (rate > 0) { 781 p.min = min(p.min, list[i]); 782 p.max = max(p.max, list[i]); 783 } 784 785 rate = rsnd_ssi_clk_query(priv, 786 baseline->max, list[i], NULL); 787 if (rate > 0) { 788 p.min = min(p.min, list[i]); 789 p.max = max(p.max, list[i]); 790 } 791 } 792 793 return snd_interval_refine(iv, &p); 794 } 795 796 static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params, 797 struct snd_pcm_hw_rule *rule) 798 { 799 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 800 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 801 struct snd_interval ic; 802 struct snd_soc_dai *dai = rule->private; 803 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 804 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); 805 806 /* 807 * possible sampling rate limitation is same as 808 * 2ch if it supports multi ssi 809 */ 810 ic = *ic_; 811 if (1 < rsnd_rdai_ssi_lane_get(rdai)) { 812 ic.min = 2; 813 ic.max = 2; 814 } 815 816 return rsnd_soc_hw_rule(priv, rsnd_soc_hw_rate_list, 817 ARRAY_SIZE(rsnd_soc_hw_rate_list), 818 &ic, ir); 819 } 820 821 822 static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params, 823 struct snd_pcm_hw_rule *rule) 824 { 825 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 826 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 827 struct snd_interval ic; 828 struct snd_soc_dai *dai = rule->private; 829 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 830 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); 831 832 /* 833 * possible sampling rate limitation is same as 834 * 2ch if it supports multi ssi 835 */ 836 ic = *ic_; 837 if (1 < rsnd_rdai_ssi_lane_get(rdai)) { 838 ic.min = 2; 839 ic.max = 2; 840 } 841 842 return rsnd_soc_hw_rule(priv, rsnd_soc_hw_channels_list, 843 ARRAY_SIZE(rsnd_soc_hw_channels_list), 844 ir, &ic); 845 } 846 847 static void rsnd_soc_hw_constraint(struct snd_pcm_runtime *runtime, 848 struct snd_soc_dai *dai) 849 { 850 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 851 struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint; 852 unsigned int max_channels = rsnd_rdai_channels_get(rdai); 853 int i; 854 855 /* 856 * Channel Limitation 857 * It depends on Platform design 858 */ 859 constraint->list = rsnd_soc_hw_channels_list; 860 constraint->count = 0; 861 constraint->mask = 0; 862 863 for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) { 864 if (rsnd_soc_hw_channels_list[i] > max_channels) 865 break; 866 constraint->count = i + 1; 867 } 868 869 snd_pcm_hw_constraint_list(runtime, 0, 870 SNDRV_PCM_HW_PARAM_CHANNELS, constraint); 871 872 /* 873 * Sampling Rate / Channel Limitation 874 * It depends on Clock Master Mode 875 */ 876 if (!rsnd_rdai_is_clk_master(rdai)) 877 return; 878 879 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 880 rsnd_soc_hw_rule_rate, dai, 881 SNDRV_PCM_HW_PARAM_CHANNELS, -1); 882 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 883 rsnd_soc_hw_rule_channels, dai, 884 SNDRV_PCM_HW_PARAM_RATE, -1); 885 } 886 887 static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream, 888 struct snd_soc_dai *dai) 889 { 890 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 891 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); 892 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 893 int ret; 894 895 /* rsnd_io_to_runtime() is not yet enabled here */ 896 rsnd_soc_hw_constraint(substream->runtime, dai); 897 898 /* 899 * call rsnd_dai_call without spinlock 900 */ 901 ret = rsnd_dai_call(nolock_start, io, priv); 902 if (ret < 0) 903 rsnd_dai_call(nolock_stop, io, priv); 904 905 return ret; 906 } 907 908 static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream, 909 struct snd_soc_dai *dai) 910 { 911 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 912 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); 913 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 914 915 /* 916 * call rsnd_dai_call without spinlock 917 */ 918 rsnd_dai_call(nolock_stop, io, priv); 919 } 920 921 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = { 922 .startup = rsnd_soc_dai_startup, 923 .shutdown = rsnd_soc_dai_shutdown, 924 .trigger = rsnd_soc_dai_trigger, 925 .set_fmt = rsnd_soc_dai_set_fmt, 926 .set_tdm_slot = rsnd_soc_set_dai_tdm_slot, 927 }; 928 929 void rsnd_parse_connect_common(struct rsnd_dai *rdai, 930 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id), 931 struct device_node *node, 932 struct device_node *playback, 933 struct device_node *capture) 934 { 935 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); 936 struct device_node *np; 937 struct rsnd_mod *mod; 938 int i; 939 940 if (!node) 941 return; 942 943 i = 0; 944 for_each_child_of_node(node, np) { 945 mod = mod_get(priv, i); 946 if (np == playback) 947 rsnd_dai_connect(mod, &rdai->playback, mod->type); 948 if (np == capture) 949 rsnd_dai_connect(mod, &rdai->capture, mod->type); 950 i++; 951 } 952 953 of_node_put(node); 954 } 955 956 static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv, 957 int *is_graph) 958 { 959 struct device *dev = rsnd_priv_to_dev(priv); 960 struct device_node *np = dev->of_node; 961 struct device_node *dai_node; 962 struct device_node *ret; 963 964 *is_graph = 0; 965 966 /* 967 * parse both previous dai (= rcar_sound,dai), and 968 * graph dai (= ports/port) 969 */ 970 dai_node = of_get_child_by_name(np, RSND_NODE_DAI); 971 if (dai_node) { 972 ret = dai_node; 973 goto of_node_compatible; 974 } 975 976 ret = np; 977 978 dai_node = of_graph_get_next_endpoint(np, NULL); 979 if (dai_node) 980 goto of_node_graph; 981 982 return NULL; 983 984 of_node_graph: 985 *is_graph = 1; 986 of_node_compatible: 987 of_node_put(dai_node); 988 989 return ret; 990 } 991 992 static void __rsnd_dai_probe(struct rsnd_priv *priv, 993 struct device_node *dai_np, 994 int dai_i, int is_graph) 995 { 996 struct device_node *playback, *capture; 997 struct rsnd_dai_stream *io_playback; 998 struct rsnd_dai_stream *io_capture; 999 struct snd_soc_dai_driver *drv; 1000 struct rsnd_dai *rdai; 1001 struct device *dev = rsnd_priv_to_dev(priv); 1002 int io_i; 1003 1004 rdai = rsnd_rdai_get(priv, dai_i); 1005 drv = priv->daidrv + dai_i; 1006 io_playback = &rdai->playback; 1007 io_capture = &rdai->capture; 1008 1009 snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i); 1010 1011 rdai->priv = priv; 1012 drv->name = rdai->name; 1013 drv->ops = &rsnd_soc_dai_ops; 1014 1015 snprintf(rdai->playback.name, RSND_DAI_NAME_SIZE, 1016 "DAI%d Playback", dai_i); 1017 drv->playback.rates = RSND_RATES; 1018 drv->playback.formats = RSND_FMTS; 1019 drv->playback.channels_min = 2; 1020 drv->playback.channels_max = 16; 1021 drv->playback.stream_name = rdai->playback.name; 1022 1023 snprintf(rdai->capture.name, RSND_DAI_NAME_SIZE, 1024 "DAI%d Capture", dai_i); 1025 drv->capture.rates = RSND_RATES; 1026 drv->capture.formats = RSND_FMTS; 1027 drv->capture.channels_min = 2; 1028 drv->capture.channels_max = 16; 1029 drv->capture.stream_name = rdai->capture.name; 1030 1031 rdai->playback.rdai = rdai; 1032 rdai->capture.rdai = rdai; 1033 rsnd_rdai_channels_set(rdai, 2); /* default 2ch */ 1034 rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */ 1035 1036 for (io_i = 0;; io_i++) { 1037 playback = of_parse_phandle(dai_np, "playback", io_i); 1038 capture = of_parse_phandle(dai_np, "capture", io_i); 1039 1040 if (!playback && !capture) 1041 break; 1042 1043 rsnd_parse_connect_ssi(rdai, playback, capture); 1044 rsnd_parse_connect_src(rdai, playback, capture); 1045 rsnd_parse_connect_ctu(rdai, playback, capture); 1046 rsnd_parse_connect_mix(rdai, playback, capture); 1047 rsnd_parse_connect_dvc(rdai, playback, capture); 1048 1049 of_node_put(playback); 1050 of_node_put(capture); 1051 } 1052 1053 dev_dbg(dev, "%s (%s/%s)\n", rdai->name, 1054 rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ", 1055 rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- "); 1056 } 1057 1058 static int rsnd_dai_probe(struct rsnd_priv *priv) 1059 { 1060 struct device_node *dai_node; 1061 struct device_node *dai_np; 1062 struct snd_soc_dai_driver *rdrv; 1063 struct device *dev = rsnd_priv_to_dev(priv); 1064 struct rsnd_dai *rdai; 1065 int nr; 1066 int is_graph; 1067 int dai_i; 1068 1069 dai_node = rsnd_dai_of_node(priv, &is_graph); 1070 if (is_graph) 1071 nr = of_graph_get_endpoint_count(dai_node); 1072 else 1073 nr = of_get_child_count(dai_node); 1074 1075 if (!nr) 1076 return -EINVAL; 1077 1078 rdrv = devm_kzalloc(dev, sizeof(*rdrv) * nr, GFP_KERNEL); 1079 rdai = devm_kzalloc(dev, sizeof(*rdai) * nr, GFP_KERNEL); 1080 if (!rdrv || !rdai) 1081 return -ENOMEM; 1082 1083 priv->rdai_nr = nr; 1084 priv->daidrv = rdrv; 1085 priv->rdai = rdai; 1086 1087 /* 1088 * parse all dai 1089 */ 1090 dai_i = 0; 1091 if (is_graph) { 1092 for_each_endpoint_of_node(dai_node, dai_np) { 1093 __rsnd_dai_probe(priv, dai_np, dai_i, is_graph); 1094 rsnd_ssi_parse_hdmi_connection(priv, dai_np, dai_i); 1095 dai_i++; 1096 } 1097 } else { 1098 for_each_child_of_node(dai_node, dai_np) 1099 __rsnd_dai_probe(priv, dai_np, dai_i++, is_graph); 1100 } 1101 1102 return 0; 1103 } 1104 1105 /* 1106 * pcm ops 1107 */ 1108 static struct snd_pcm_hardware rsnd_pcm_hardware = { 1109 .info = SNDRV_PCM_INFO_INTERLEAVED | 1110 SNDRV_PCM_INFO_MMAP | 1111 SNDRV_PCM_INFO_MMAP_VALID, 1112 .buffer_bytes_max = 64 * 1024, 1113 .period_bytes_min = 32, 1114 .period_bytes_max = 8192, 1115 .periods_min = 1, 1116 .periods_max = 32, 1117 .fifo_size = 256, 1118 }; 1119 1120 static int rsnd_pcm_open(struct snd_pcm_substream *substream) 1121 { 1122 struct snd_pcm_runtime *runtime = substream->runtime; 1123 int ret = 0; 1124 1125 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware); 1126 1127 ret = snd_pcm_hw_constraint_integer(runtime, 1128 SNDRV_PCM_HW_PARAM_PERIODS); 1129 1130 return ret; 1131 } 1132 1133 static int rsnd_hw_params(struct snd_pcm_substream *substream, 1134 struct snd_pcm_hw_params *hw_params) 1135 { 1136 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); 1137 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1138 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 1139 int ret; 1140 1141 ret = rsnd_dai_call(hw_params, io, substream, hw_params); 1142 if (ret) 1143 return ret; 1144 1145 return snd_pcm_lib_malloc_pages(substream, 1146 params_buffer_bytes(hw_params)); 1147 } 1148 1149 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream) 1150 { 1151 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); 1152 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1153 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 1154 snd_pcm_uframes_t pointer = 0; 1155 1156 rsnd_dai_call(pointer, io, &pointer); 1157 1158 return pointer; 1159 } 1160 1161 static struct snd_pcm_ops rsnd_pcm_ops = { 1162 .open = rsnd_pcm_open, 1163 .ioctl = snd_pcm_lib_ioctl, 1164 .hw_params = rsnd_hw_params, 1165 .hw_free = snd_pcm_lib_free_pages, 1166 .pointer = rsnd_pointer, 1167 }; 1168 1169 /* 1170 * snd_kcontrol 1171 */ 1172 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value) 1173 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl, 1174 struct snd_ctl_elem_info *uinfo) 1175 { 1176 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl); 1177 1178 if (cfg->texts) { 1179 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 1180 uinfo->count = cfg->size; 1181 uinfo->value.enumerated.items = cfg->max; 1182 if (uinfo->value.enumerated.item >= cfg->max) 1183 uinfo->value.enumerated.item = cfg->max - 1; 1184 strlcpy(uinfo->value.enumerated.name, 1185 cfg->texts[uinfo->value.enumerated.item], 1186 sizeof(uinfo->value.enumerated.name)); 1187 } else { 1188 uinfo->count = cfg->size; 1189 uinfo->value.integer.min = 0; 1190 uinfo->value.integer.max = cfg->max; 1191 uinfo->type = (cfg->max == 1) ? 1192 SNDRV_CTL_ELEM_TYPE_BOOLEAN : 1193 SNDRV_CTL_ELEM_TYPE_INTEGER; 1194 } 1195 1196 return 0; 1197 } 1198 1199 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl, 1200 struct snd_ctl_elem_value *uc) 1201 { 1202 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl); 1203 int i; 1204 1205 for (i = 0; i < cfg->size; i++) 1206 if (cfg->texts) 1207 uc->value.enumerated.item[i] = cfg->val[i]; 1208 else 1209 uc->value.integer.value[i] = cfg->val[i]; 1210 1211 return 0; 1212 } 1213 1214 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl, 1215 struct snd_ctl_elem_value *uc) 1216 { 1217 struct rsnd_mod *mod = snd_kcontrol_chip(kctrl); 1218 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl); 1219 int i, change = 0; 1220 1221 if (!cfg->accept(cfg->io)) 1222 return 0; 1223 1224 for (i = 0; i < cfg->size; i++) { 1225 if (cfg->texts) { 1226 change |= (uc->value.enumerated.item[i] != cfg->val[i]); 1227 cfg->val[i] = uc->value.enumerated.item[i]; 1228 } else { 1229 change |= (uc->value.integer.value[i] != cfg->val[i]); 1230 cfg->val[i] = uc->value.integer.value[i]; 1231 } 1232 } 1233 1234 if (change && cfg->update) 1235 cfg->update(cfg->io, mod); 1236 1237 return change; 1238 } 1239 1240 int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io) 1241 { 1242 return 1; 1243 } 1244 1245 int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io) 1246 { 1247 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 1248 1249 return !!runtime; 1250 } 1251 1252 struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg) 1253 { 1254 cfg->cfg.val = cfg->val; 1255 1256 return &cfg->cfg; 1257 } 1258 1259 struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg) 1260 { 1261 cfg->cfg.val = &cfg->val; 1262 1263 return &cfg->cfg; 1264 } 1265 1266 int rsnd_kctrl_new(struct rsnd_mod *mod, 1267 struct rsnd_dai_stream *io, 1268 struct snd_soc_pcm_runtime *rtd, 1269 const unsigned char *name, 1270 int (*accept)(struct rsnd_dai_stream *io), 1271 void (*update)(struct rsnd_dai_stream *io, 1272 struct rsnd_mod *mod), 1273 struct rsnd_kctrl_cfg *cfg, 1274 const char * const *texts, 1275 int size, 1276 u32 max) 1277 { 1278 struct snd_card *card = rtd->card->snd_card; 1279 struct snd_kcontrol *kctrl; 1280 struct snd_kcontrol_new knew = { 1281 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1282 .name = name, 1283 .info = rsnd_kctrl_info, 1284 .index = rtd->num, 1285 .get = rsnd_kctrl_get, 1286 .put = rsnd_kctrl_put, 1287 .private_value = (unsigned long)cfg, 1288 }; 1289 int ret; 1290 1291 if (size > RSND_MAX_CHANNELS) 1292 return -EINVAL; 1293 1294 kctrl = snd_ctl_new1(&knew, mod); 1295 if (!kctrl) 1296 return -ENOMEM; 1297 1298 ret = snd_ctl_add(card, kctrl); 1299 if (ret < 0) 1300 return ret; 1301 1302 cfg->texts = texts; 1303 cfg->max = max; 1304 cfg->size = size; 1305 cfg->accept = accept; 1306 cfg->update = update; 1307 cfg->card = card; 1308 cfg->kctrl = kctrl; 1309 cfg->io = io; 1310 1311 return 0; 1312 } 1313 1314 /* 1315 * snd_soc_platform 1316 */ 1317 1318 #define PREALLOC_BUFFER (32 * 1024) 1319 #define PREALLOC_BUFFER_MAX (32 * 1024) 1320 1321 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd) 1322 { 1323 struct snd_soc_dai *dai = rtd->cpu_dai; 1324 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1325 int ret; 1326 1327 ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd); 1328 if (ret) 1329 return ret; 1330 1331 ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd); 1332 if (ret) 1333 return ret; 1334 1335 return snd_pcm_lib_preallocate_pages_for_all( 1336 rtd->pcm, 1337 SNDRV_DMA_TYPE_CONTINUOUS, 1338 snd_dma_continuous_data(GFP_KERNEL), 1339 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); 1340 } 1341 1342 static struct snd_soc_platform_driver rsnd_soc_platform = { 1343 .ops = &rsnd_pcm_ops, 1344 .pcm_new = rsnd_pcm_new, 1345 }; 1346 1347 static const struct snd_soc_component_driver rsnd_soc_component = { 1348 .name = "rsnd", 1349 }; 1350 1351 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv, 1352 struct rsnd_dai_stream *io) 1353 { 1354 int ret; 1355 1356 ret = rsnd_dai_call(probe, io, priv); 1357 if (ret == -EAGAIN) { 1358 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io); 1359 struct rsnd_mod *mod; 1360 int i; 1361 1362 /* 1363 * Fallback to PIO mode 1364 */ 1365 1366 /* 1367 * call "remove" for SSI/SRC/DVC 1368 * SSI will be switch to PIO mode if it was DMA mode 1369 * see 1370 * rsnd_dma_init() 1371 * rsnd_ssi_fallback() 1372 */ 1373 rsnd_dai_call(remove, io, priv); 1374 1375 /* 1376 * remove all mod from io 1377 * and, re connect ssi 1378 */ 1379 for_each_rsnd_mod(i, mod, io) 1380 rsnd_dai_disconnect(mod, io, i); 1381 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI); 1382 1383 /* 1384 * fallback 1385 */ 1386 rsnd_dai_call(fallback, io, priv); 1387 1388 /* 1389 * retry to "probe". 1390 * DAI has SSI which is PIO mode only now. 1391 */ 1392 ret = rsnd_dai_call(probe, io, priv); 1393 } 1394 1395 return ret; 1396 } 1397 1398 /* 1399 * rsnd probe 1400 */ 1401 static int rsnd_probe(struct platform_device *pdev) 1402 { 1403 struct rsnd_priv *priv; 1404 struct device *dev = &pdev->dev; 1405 struct rsnd_dai *rdai; 1406 int (*probe_func[])(struct rsnd_priv *priv) = { 1407 rsnd_gen_probe, 1408 rsnd_dma_probe, 1409 rsnd_ssi_probe, 1410 rsnd_ssiu_probe, 1411 rsnd_src_probe, 1412 rsnd_ctu_probe, 1413 rsnd_mix_probe, 1414 rsnd_dvc_probe, 1415 rsnd_cmd_probe, 1416 rsnd_adg_probe, 1417 rsnd_dai_probe, 1418 }; 1419 int ret, i; 1420 1421 /* 1422 * init priv data 1423 */ 1424 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 1425 if (!priv) { 1426 dev_err(dev, "priv allocate failed\n"); 1427 return -ENODEV; 1428 } 1429 1430 priv->pdev = pdev; 1431 priv->flags = (unsigned long)of_device_get_match_data(dev); 1432 spin_lock_init(&priv->lock); 1433 1434 /* 1435 * init each module 1436 */ 1437 for (i = 0; i < ARRAY_SIZE(probe_func); i++) { 1438 ret = probe_func[i](priv); 1439 if (ret) 1440 return ret; 1441 } 1442 1443 for_each_rsnd_dai(rdai, priv, i) { 1444 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback); 1445 if (ret) 1446 goto exit_snd_probe; 1447 1448 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture); 1449 if (ret) 1450 goto exit_snd_probe; 1451 } 1452 1453 dev_set_drvdata(dev, priv); 1454 1455 /* 1456 * asoc register 1457 */ 1458 ret = snd_soc_register_platform(dev, &rsnd_soc_platform); 1459 if (ret < 0) { 1460 dev_err(dev, "cannot snd soc register\n"); 1461 return ret; 1462 } 1463 1464 ret = snd_soc_register_component(dev, &rsnd_soc_component, 1465 priv->daidrv, rsnd_rdai_nr(priv)); 1466 if (ret < 0) { 1467 dev_err(dev, "cannot snd dai register\n"); 1468 goto exit_snd_soc; 1469 } 1470 1471 pm_runtime_enable(dev); 1472 1473 dev_info(dev, "probed\n"); 1474 return ret; 1475 1476 exit_snd_soc: 1477 snd_soc_unregister_platform(dev); 1478 exit_snd_probe: 1479 for_each_rsnd_dai(rdai, priv, i) { 1480 rsnd_dai_call(remove, &rdai->playback, priv); 1481 rsnd_dai_call(remove, &rdai->capture, priv); 1482 } 1483 1484 return ret; 1485 } 1486 1487 static int rsnd_remove(struct platform_device *pdev) 1488 { 1489 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev); 1490 struct rsnd_dai *rdai; 1491 void (*remove_func[])(struct rsnd_priv *priv) = { 1492 rsnd_ssi_remove, 1493 rsnd_ssiu_remove, 1494 rsnd_src_remove, 1495 rsnd_ctu_remove, 1496 rsnd_mix_remove, 1497 rsnd_dvc_remove, 1498 rsnd_cmd_remove, 1499 rsnd_adg_remove, 1500 }; 1501 int ret = 0, i; 1502 1503 pm_runtime_disable(&pdev->dev); 1504 1505 for_each_rsnd_dai(rdai, priv, i) { 1506 ret |= rsnd_dai_call(remove, &rdai->playback, priv); 1507 ret |= rsnd_dai_call(remove, &rdai->capture, priv); 1508 } 1509 1510 for (i = 0; i < ARRAY_SIZE(remove_func); i++) 1511 remove_func[i](priv); 1512 1513 snd_soc_unregister_component(&pdev->dev); 1514 snd_soc_unregister_platform(&pdev->dev); 1515 1516 return ret; 1517 } 1518 1519 static int rsnd_suspend(struct device *dev) 1520 { 1521 struct rsnd_priv *priv = dev_get_drvdata(dev); 1522 1523 rsnd_adg_clk_disable(priv); 1524 1525 return 0; 1526 } 1527 1528 static int rsnd_resume(struct device *dev) 1529 { 1530 struct rsnd_priv *priv = dev_get_drvdata(dev); 1531 1532 rsnd_adg_clk_enable(priv); 1533 1534 return 0; 1535 } 1536 1537 static const struct dev_pm_ops rsnd_pm_ops = { 1538 .suspend = rsnd_suspend, 1539 .resume = rsnd_resume, 1540 }; 1541 1542 static struct platform_driver rsnd_driver = { 1543 .driver = { 1544 .name = "rcar_sound", 1545 .pm = &rsnd_pm_ops, 1546 .of_match_table = rsnd_of_match, 1547 }, 1548 .probe = rsnd_probe, 1549 .remove = rsnd_remove, 1550 }; 1551 module_platform_driver(rsnd_driver); 1552 1553 MODULE_LICENSE("GPL"); 1554 MODULE_DESCRIPTION("Renesas R-Car audio driver"); 1555 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); 1556 MODULE_ALIAS("platform:rcar-pcm-audio"); 1557