1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // rt1316-sdw.c -- rt1316 SDCA ALSA SoC amplifier audio driver 4 // 5 // Copyright(c) 2021 Realtek Semiconductor Corp. 6 // 7 // 8 #include <linux/delay.h> 9 #include <linux/device.h> 10 #include <linux/pm_runtime.h> 11 #include <linux/mod_devicetable.h> 12 #include <linux/module.h> 13 #include <linux/regmap.h> 14 #include <sound/core.h> 15 #include <sound/pcm.h> 16 #include <sound/pcm_params.h> 17 #include <sound/soc-dapm.h> 18 #include <sound/initval.h> 19 #include "rt1316-sdw.h" 20 21 static const struct reg_default rt1316_reg_defaults[] = { 22 { 0x3004, 0x00 }, 23 { 0x3005, 0x00 }, 24 { 0x3206, 0x00 }, 25 { 0xc001, 0x00 }, 26 { 0xc002, 0x00 }, 27 { 0xc003, 0x00 }, 28 { 0xc004, 0x00 }, 29 { 0xc005, 0x00 }, 30 { 0xc006, 0x00 }, 31 { 0xc007, 0x00 }, 32 { 0xc008, 0x00 }, 33 { 0xc009, 0x00 }, 34 { 0xc00a, 0x00 }, 35 { 0xc00b, 0x00 }, 36 { 0xc00c, 0x00 }, 37 { 0xc00d, 0x00 }, 38 { 0xc00e, 0x00 }, 39 { 0xc00f, 0x00 }, 40 { 0xc010, 0xa5 }, 41 { 0xc011, 0x00 }, 42 { 0xc012, 0xff }, 43 { 0xc013, 0xff }, 44 { 0xc014, 0x40 }, 45 { 0xc015, 0x00 }, 46 { 0xc016, 0x00 }, 47 { 0xc017, 0x00 }, 48 { 0xc605, 0x30 }, 49 { 0xc700, 0x0a }, 50 { 0xc701, 0xaa }, 51 { 0xc702, 0x1a }, 52 { 0xc703, 0x0a }, 53 { 0xc710, 0x80 }, 54 { 0xc711, 0x00 }, 55 { 0xc712, 0x3e }, 56 { 0xc713, 0x80 }, 57 { 0xc714, 0x80 }, 58 { 0xc715, 0x06 }, 59 { 0xd101, 0x00 }, 60 { 0xd102, 0x30 }, 61 { 0xd103, 0x00 }, 62 { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 }, 63 { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), 0x01 }, 64 { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), 0x01 }, 65 { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x01 }, 66 { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 }, 67 { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 }, 68 { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 }, 69 }; 70 71 static const struct reg_sequence rt1316_blind_write[] = { 72 { 0xc710, 0x17 }, 73 { 0xc711, 0x80 }, 74 { 0xc712, 0x26 }, 75 { 0xc713, 0x06 }, 76 { 0xc714, 0x80 }, 77 { 0xc715, 0x06 }, 78 { 0xc702, 0x0a }, 79 { 0xc703, 0x0a }, 80 { 0xc001, 0x45 }, 81 { 0xc003, 0x00 }, 82 { 0xc004, 0x11 }, 83 { 0xc005, 0x00 }, 84 { 0xc006, 0x00 }, 85 { 0xc106, 0x00 }, 86 { 0xc007, 0x11 }, 87 { 0xc008, 0x11 }, 88 { 0xc009, 0x00 }, 89 90 { 0x2f0a, 0x00 }, 91 { 0xd101, 0xf0 }, 92 { 0xd103, 0x9b }, 93 { 0x2f36, 0x8e }, 94 { 0x3206, 0x80 }, 95 { 0x3211, 0x0b }, 96 { 0x3216, 0x06 }, 97 { 0xc614, 0x20 }, 98 { 0xc615, 0x0a }, 99 { 0xc616, 0x02 }, 100 { 0xc617, 0x00 }, 101 { 0xc60b, 0x10 }, 102 { 0xc60e, 0x05 }, 103 { 0xc102, 0x00 }, 104 { 0xc090, 0xb0 }, 105 { 0xc00f, 0x01 }, 106 { 0xc09c, 0x7b }, 107 108 { 0xc602, 0x07 }, 109 { 0xc603, 0x07 }, 110 { 0xc0a3, 0x71 }, 111 { 0xc00b, 0x30 }, 112 { 0xc093, 0x80 }, 113 { 0xc09d, 0x80 }, 114 { 0xc0b0, 0x77 }, 115 { 0xc010, 0xa5 }, 116 { 0xc050, 0x83 }, 117 { 0x2f55, 0x03 }, 118 { 0x3217, 0xb5 }, 119 { 0x3202, 0x02 }, 120 121 { SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x00 }, 122 123 /* for IV sense */ 124 { 0x2232, 0x80 }, 125 { 0xc0b0, 0x77 }, 126 { 0xc011, 0x00 }, 127 { 0xc020, 0x00 }, 128 { 0xc023, 0x00 }, 129 { 0x3101, 0x00 }, 130 { 0x3004, 0xa0 }, 131 { 0x3005, 0xb1 }, 132 { 0xc007, 0x11 }, 133 { 0xc008, 0x11 }, 134 { 0xc009, 0x00 }, 135 { 0xc022, 0xd6 }, 136 { 0xc025, 0xd6 }, 137 138 { 0xd001, 0x03 }, 139 { 0xd002, 0xbf }, 140 { 0xd003, 0x03 }, 141 { 0xd004, 0xbf }, 142 }; 143 144 static bool rt1316_readable_register(struct device *dev, unsigned int reg) 145 { 146 switch (reg) { 147 case 0x2f0a: 148 case 0x2f36: 149 case 0x3203 ... 0x320e: 150 case 0xc000 ... 0xc7b4: 151 case 0xcf00 ... 0xcf03: 152 case 0xd101 ... 0xd103: 153 case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0): 154 case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L): 155 case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R): 156 case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0): 157 case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, RT1316_SDCA_CTL_REQ_POWER_STATE, 0): 158 case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0): 159 case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0): 160 return true; 161 default: 162 return false; 163 } 164 } 165 166 static bool rt1316_volatile_register(struct device *dev, unsigned int reg) 167 { 168 switch (reg) { 169 case 0xc000: 170 case 0xc093: 171 case 0xc09d: 172 case 0xc0a3: 173 case 0xc201: 174 case 0xc427 ... 0xc428: 175 case 0xd102: 176 return true; 177 default: 178 return false; 179 } 180 } 181 182 static const struct regmap_config rt1316_sdw_regmap = { 183 .reg_bits = 32, 184 .val_bits = 8, 185 .readable_reg = rt1316_readable_register, 186 .volatile_reg = rt1316_volatile_register, 187 .max_register = 0x4108ffff, 188 .reg_defaults = rt1316_reg_defaults, 189 .num_reg_defaults = ARRAY_SIZE(rt1316_reg_defaults), 190 .cache_type = REGCACHE_RBTREE, 191 .use_single_read = true, 192 .use_single_write = true, 193 }; 194 195 static int rt1316_read_prop(struct sdw_slave *slave) 196 { 197 struct sdw_slave_prop *prop = &slave->prop; 198 int nval; 199 int i, j; 200 u32 bit; 201 unsigned long addr; 202 struct sdw_dpn_prop *dpn; 203 204 prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY; 205 prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY; 206 prop->is_sdca = true; 207 208 prop->paging_support = true; 209 210 /* first we need to allocate memory for set bits in port lists */ 211 prop->source_ports = 0x04; /* BITMAP: 00000100 */ 212 prop->sink_ports = 0x2; /* BITMAP: 00000010 */ 213 214 nval = hweight32(prop->source_ports); 215 prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval, 216 sizeof(*prop->src_dpn_prop), GFP_KERNEL); 217 if (!prop->src_dpn_prop) 218 return -ENOMEM; 219 220 i = 0; 221 dpn = prop->src_dpn_prop; 222 addr = prop->source_ports; 223 for_each_set_bit(bit, &addr, 32) { 224 dpn[i].num = bit; 225 dpn[i].type = SDW_DPN_FULL; 226 dpn[i].simple_ch_prep_sm = true; 227 dpn[i].ch_prep_timeout = 10; 228 i++; 229 } 230 231 /* do this again for sink now */ 232 nval = hweight32(prop->sink_ports); 233 prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval, 234 sizeof(*prop->sink_dpn_prop), GFP_KERNEL); 235 if (!prop->sink_dpn_prop) 236 return -ENOMEM; 237 238 j = 0; 239 dpn = prop->sink_dpn_prop; 240 addr = prop->sink_ports; 241 for_each_set_bit(bit, &addr, 32) { 242 dpn[j].num = bit; 243 dpn[j].type = SDW_DPN_FULL; 244 dpn[j].simple_ch_prep_sm = true; 245 dpn[j].ch_prep_timeout = 10; 246 j++; 247 } 248 249 /* set the timeout values */ 250 prop->clk_stop_timeout = 20; 251 252 dev_dbg(&slave->dev, "%s\n", __func__); 253 254 return 0; 255 } 256 257 static int rt1316_io_init(struct device *dev, struct sdw_slave *slave) 258 { 259 struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev); 260 261 if (rt1316->hw_init) 262 return 0; 263 264 if (rt1316->first_hw_init) { 265 regcache_cache_only(rt1316->regmap, false); 266 regcache_cache_bypass(rt1316->regmap, true); 267 } else { 268 /* 269 * PM runtime is only enabled when a Slave reports as Attached 270 */ 271 272 /* set autosuspend parameters */ 273 pm_runtime_set_autosuspend_delay(&slave->dev, 3000); 274 pm_runtime_use_autosuspend(&slave->dev); 275 276 /* update count of parent 'active' children */ 277 pm_runtime_set_active(&slave->dev); 278 279 /* make sure the device does not suspend immediately */ 280 pm_runtime_mark_last_busy(&slave->dev); 281 282 pm_runtime_enable(&slave->dev); 283 } 284 285 pm_runtime_get_noresume(&slave->dev); 286 287 /* sw reset */ 288 regmap_write(rt1316->regmap, 0xc000, 0x02); 289 290 /* initial settings - blind write */ 291 regmap_multi_reg_write(rt1316->regmap, rt1316_blind_write, 292 ARRAY_SIZE(rt1316_blind_write)); 293 294 if (rt1316->first_hw_init) { 295 regcache_cache_bypass(rt1316->regmap, false); 296 regcache_mark_dirty(rt1316->regmap); 297 } else 298 rt1316->first_hw_init = true; 299 300 /* Mark Slave initialization complete */ 301 rt1316->hw_init = true; 302 303 pm_runtime_mark_last_busy(&slave->dev); 304 pm_runtime_put_autosuspend(&slave->dev); 305 306 dev_dbg(&slave->dev, "%s hw_init complete\n", __func__); 307 return 0; 308 } 309 310 static int rt1316_update_status(struct sdw_slave *slave, 311 enum sdw_slave_status status) 312 { 313 struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(&slave->dev); 314 315 /* Update the status */ 316 rt1316->status = status; 317 318 if (status == SDW_SLAVE_UNATTACHED) 319 rt1316->hw_init = false; 320 321 /* 322 * Perform initialization only if slave status is present and 323 * hw_init flag is false 324 */ 325 if (rt1316->hw_init || rt1316->status != SDW_SLAVE_ATTACHED) 326 return 0; 327 328 /* perform I/O transfers required for Slave initialization */ 329 return rt1316_io_init(&slave->dev, slave); 330 } 331 332 static int rt1316_classd_event(struct snd_soc_dapm_widget *w, 333 struct snd_kcontrol *kcontrol, int event) 334 { 335 struct snd_soc_component *component = 336 snd_soc_dapm_to_component(w->dapm); 337 struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component); 338 unsigned char ps0 = 0x0, ps3 = 0x3; 339 340 switch (event) { 341 case SND_SOC_DAPM_POST_PMU: 342 regmap_write(rt1316->regmap, 343 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, 344 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 345 ps0); 346 regmap_write(rt1316->regmap, 347 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, 348 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 349 ps0); 350 regmap_write(rt1316->regmap, 351 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, 352 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 353 ps0); 354 break; 355 case SND_SOC_DAPM_PRE_PMD: 356 regmap_write(rt1316->regmap, 357 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, 358 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 359 ps3); 360 regmap_write(rt1316->regmap, 361 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, 362 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 363 ps3); 364 regmap_write(rt1316->regmap, 365 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, 366 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 367 ps3); 368 break; 369 370 default: 371 break; 372 } 373 374 return 0; 375 } 376 377 static int rt1316_pde24_event(struct snd_soc_dapm_widget *w, 378 struct snd_kcontrol *kcontrol, int event) 379 { 380 struct snd_soc_component *component = 381 snd_soc_dapm_to_component(w->dapm); 382 struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component); 383 unsigned char ps0 = 0x0, ps3 = 0x3; 384 385 switch (event) { 386 case SND_SOC_DAPM_POST_PMU: 387 regmap_write(rt1316->regmap, 388 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, 389 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 390 ps0); 391 break; 392 case SND_SOC_DAPM_PRE_PMD: 393 regmap_write(rt1316->regmap, 394 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, 395 RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 396 ps3); 397 break; 398 } 399 return 0; 400 } 401 402 static const char * const rt1316_rx_data_ch_select[] = { 403 "L,R", 404 "L,L", 405 "L,R", 406 "L,L+R", 407 "R,L", 408 "R,R", 409 "R,L+R", 410 "L+R,L", 411 "L+R,R", 412 "L+R,L+R", 413 }; 414 415 static SOC_ENUM_SINGLE_DECL(rt1316_rx_data_ch_enum, 416 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0, 417 rt1316_rx_data_ch_select); 418 419 static const struct snd_kcontrol_new rt1316_snd_controls[] = { 420 421 /* I2S Data Channel Selection */ 422 SOC_ENUM("RX Channel Select", rt1316_rx_data_ch_enum), 423 424 /* XU24 Bypass Control */ 425 SOC_SINGLE("XU24 Bypass Switch", 426 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0, 1, 0), 427 428 /* Left/Right IV tag */ 429 SOC_SINGLE("Left V Tag Select", 0x3004, 0, 7, 0), 430 SOC_SINGLE("Left I Tag Select", 0x3004, 4, 7, 0), 431 SOC_SINGLE("Right V Tag Select", 0x3005, 0, 7, 0), 432 SOC_SINGLE("Right I Tag Select", 0x3005, 4, 7, 0), 433 434 /* IV mixer Control */ 435 SOC_DOUBLE("Isense Mixer Switch", 0xc605, 2, 0, 1, 1), 436 SOC_DOUBLE("Vsense Mixer Switch", 0xc605, 3, 1, 1, 1), 437 }; 438 439 static const struct snd_kcontrol_new rt1316_sto_dac = 440 SOC_DAPM_DOUBLE_R("Switch", 441 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), 442 SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), 443 0, 1, 1); 444 445 static const struct snd_soc_dapm_widget rt1316_dapm_widgets[] = { 446 /* Audio Interface */ 447 SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0), 448 SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0), 449 450 /* Digital Interface */ 451 SND_SOC_DAPM_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac), 452 453 /* Output Lines */ 454 SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0, 455 rt1316_classd_event, 456 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 457 SND_SOC_DAPM_OUTPUT("SPOL"), 458 SND_SOC_DAPM_OUTPUT("SPOR"), 459 460 SND_SOC_DAPM_SUPPLY("PDE 24", SND_SOC_NOPM, 0, 0, 461 rt1316_pde24_event, 462 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 463 SND_SOC_DAPM_PGA("I Sense", SND_SOC_NOPM, 0, 0, NULL, 0), 464 SND_SOC_DAPM_PGA("V Sense", SND_SOC_NOPM, 0, 0, NULL, 0), 465 SND_SOC_DAPM_SIGGEN("I Gen"), 466 SND_SOC_DAPM_SIGGEN("V Gen"), 467 }; 468 469 static const struct snd_soc_dapm_route rt1316_dapm_routes[] = { 470 { "DAC", "Switch", "DP1RX" }, 471 { "CLASS D", NULL, "DAC" }, 472 { "SPOL", NULL, "CLASS D" }, 473 { "SPOR", NULL, "CLASS D" }, 474 475 { "I Sense", NULL, "I Gen" }, 476 { "V Sense", NULL, "V Gen" }, 477 { "I Sense", NULL, "PDE 24" }, 478 { "V Sense", NULL, "PDE 24" }, 479 { "DP2TX", NULL, "I Sense" }, 480 { "DP2TX", NULL, "V Sense" }, 481 }; 482 483 static int rt1316_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream, 484 int direction) 485 { 486 struct sdw_stream_data *stream; 487 488 if (!sdw_stream) 489 return 0; 490 491 stream = kzalloc(sizeof(*stream), GFP_KERNEL); 492 if (!stream) 493 return -ENOMEM; 494 495 stream->sdw_stream = sdw_stream; 496 497 /* Use tx_mask or rx_mask to configure stream tag and set dma_data */ 498 if (direction == SNDRV_PCM_STREAM_PLAYBACK) 499 dai->playback_dma_data = stream; 500 else 501 dai->capture_dma_data = stream; 502 503 return 0; 504 } 505 506 static void rt1316_sdw_shutdown(struct snd_pcm_substream *substream, 507 struct snd_soc_dai *dai) 508 { 509 struct sdw_stream_data *stream; 510 511 stream = snd_soc_dai_get_dma_data(dai, substream); 512 snd_soc_dai_set_dma_data(dai, substream, NULL); 513 kfree(stream); 514 } 515 516 static int rt1316_sdw_hw_params(struct snd_pcm_substream *substream, 517 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 518 { 519 struct snd_soc_component *component = dai->component; 520 struct rt1316_sdw_priv *rt1316 = 521 snd_soc_component_get_drvdata(component); 522 struct sdw_stream_config stream_config; 523 struct sdw_port_config port_config; 524 enum sdw_data_direction direction; 525 struct sdw_stream_data *stream; 526 int retval, port, num_channels, ch_mask; 527 528 dev_dbg(dai->dev, "%s %s", __func__, dai->name); 529 stream = snd_soc_dai_get_dma_data(dai, substream); 530 531 if (!stream) 532 return -EINVAL; 533 534 if (!rt1316->sdw_slave) 535 return -EINVAL; 536 537 /* SoundWire specific configuration */ 538 /* port 1 for playback */ 539 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 540 direction = SDW_DATA_DIR_RX; 541 port = 1; 542 } else { 543 direction = SDW_DATA_DIR_TX; 544 port = 2; 545 } 546 547 num_channels = params_channels(params); 548 ch_mask = (1 << num_channels) - 1; 549 550 stream_config.frame_rate = params_rate(params); 551 stream_config.ch_count = num_channels; 552 stream_config.bps = snd_pcm_format_width(params_format(params)); 553 stream_config.direction = direction; 554 555 port_config.ch_mask = ch_mask; 556 port_config.num = port; 557 558 retval = sdw_stream_add_slave(rt1316->sdw_slave, &stream_config, 559 &port_config, 1, stream->sdw_stream); 560 if (retval) { 561 dev_err(dai->dev, "Unable to configure port\n"); 562 return retval; 563 } 564 565 return 0; 566 } 567 568 static int rt1316_sdw_pcm_hw_free(struct snd_pcm_substream *substream, 569 struct snd_soc_dai *dai) 570 { 571 struct snd_soc_component *component = dai->component; 572 struct rt1316_sdw_priv *rt1316 = 573 snd_soc_component_get_drvdata(component); 574 struct sdw_stream_data *stream = 575 snd_soc_dai_get_dma_data(dai, substream); 576 577 if (!rt1316->sdw_slave) 578 return -EINVAL; 579 580 sdw_stream_remove_slave(rt1316->sdw_slave, stream->sdw_stream); 581 return 0; 582 } 583 584 /* 585 * slave_ops: callbacks for get_clock_stop_mode, clock_stop and 586 * port_prep are not defined for now 587 */ 588 static struct sdw_slave_ops rt1316_slave_ops = { 589 .read_prop = rt1316_read_prop, 590 .update_status = rt1316_update_status, 591 }; 592 593 static const struct snd_soc_component_driver soc_component_sdw_rt1316 = { 594 .controls = rt1316_snd_controls, 595 .num_controls = ARRAY_SIZE(rt1316_snd_controls), 596 .dapm_widgets = rt1316_dapm_widgets, 597 .num_dapm_widgets = ARRAY_SIZE(rt1316_dapm_widgets), 598 .dapm_routes = rt1316_dapm_routes, 599 .num_dapm_routes = ARRAY_SIZE(rt1316_dapm_routes), 600 }; 601 602 static const struct snd_soc_dai_ops rt1316_aif_dai_ops = { 603 .hw_params = rt1316_sdw_hw_params, 604 .hw_free = rt1316_sdw_pcm_hw_free, 605 .set_sdw_stream = rt1316_set_sdw_stream, 606 .shutdown = rt1316_sdw_shutdown, 607 }; 608 609 #define RT1316_STEREO_RATES SNDRV_PCM_RATE_48000 610 #define RT1316_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \ 611 SNDRV_PCM_FMTBIT_S24_LE) 612 613 static struct snd_soc_dai_driver rt1316_sdw_dai[] = { 614 { 615 .name = "rt1316-aif", 616 .playback = { 617 .stream_name = "DP1 Playback", 618 .channels_min = 1, 619 .channels_max = 2, 620 .rates = RT1316_STEREO_RATES, 621 .formats = RT1316_FORMATS, 622 }, 623 .capture = { 624 .stream_name = "DP2 Capture", 625 .channels_min = 1, 626 .channels_max = 2, 627 .rates = RT1316_STEREO_RATES, 628 .formats = RT1316_FORMATS, 629 }, 630 .ops = &rt1316_aif_dai_ops, 631 }, 632 }; 633 634 static int rt1316_sdw_init(struct device *dev, struct regmap *regmap, 635 struct sdw_slave *slave) 636 { 637 struct rt1316_sdw_priv *rt1316; 638 int ret; 639 640 rt1316 = devm_kzalloc(dev, sizeof(*rt1316), GFP_KERNEL); 641 if (!rt1316) 642 return -ENOMEM; 643 644 dev_set_drvdata(dev, rt1316); 645 rt1316->sdw_slave = slave; 646 rt1316->regmap = regmap; 647 648 /* 649 * Mark hw_init to false 650 * HW init will be performed when device reports present 651 */ 652 rt1316->hw_init = false; 653 rt1316->first_hw_init = false; 654 655 ret = devm_snd_soc_register_component(dev, 656 &soc_component_sdw_rt1316, 657 rt1316_sdw_dai, 658 ARRAY_SIZE(rt1316_sdw_dai)); 659 660 dev_dbg(&slave->dev, "%s\n", __func__); 661 662 return ret; 663 } 664 665 static int rt1316_sdw_probe(struct sdw_slave *slave, 666 const struct sdw_device_id *id) 667 { 668 struct regmap *regmap; 669 670 /* Regmap Initialization */ 671 regmap = devm_regmap_init_sdw(slave, &rt1316_sdw_regmap); 672 if (IS_ERR(regmap)) 673 return PTR_ERR(regmap); 674 675 return rt1316_sdw_init(&slave->dev, regmap, slave); 676 } 677 678 static const struct sdw_device_id rt1316_id[] = { 679 SDW_SLAVE_ENTRY_EXT(0x025d, 0x1316, 0x3, 0x1, 0), 680 {}, 681 }; 682 MODULE_DEVICE_TABLE(sdw, rt1316_id); 683 684 static int __maybe_unused rt1316_dev_suspend(struct device *dev) 685 { 686 struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev); 687 688 if (!rt1316->hw_init) 689 return 0; 690 691 regcache_cache_only(rt1316->regmap, true); 692 693 return 0; 694 } 695 696 #define RT1316_PROBE_TIMEOUT 5000 697 698 static int __maybe_unused rt1316_dev_resume(struct device *dev) 699 { 700 struct sdw_slave *slave = dev_to_sdw_dev(dev); 701 struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev); 702 unsigned long time; 703 704 if (!rt1316->first_hw_init) 705 return 0; 706 707 if (!slave->unattach_request) 708 goto regmap_sync; 709 710 time = wait_for_completion_timeout(&slave->initialization_complete, 711 msecs_to_jiffies(RT1316_PROBE_TIMEOUT)); 712 if (!time) { 713 dev_err(&slave->dev, "Initialization not complete, timed out\n"); 714 return -ETIMEDOUT; 715 } 716 717 regmap_sync: 718 slave->unattach_request = 0; 719 regcache_cache_only(rt1316->regmap, false); 720 regcache_sync(rt1316->regmap); 721 722 return 0; 723 } 724 725 static const struct dev_pm_ops rt1316_pm = { 726 SET_SYSTEM_SLEEP_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume) 727 SET_RUNTIME_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume, NULL) 728 }; 729 730 static struct sdw_driver rt1316_sdw_driver = { 731 .driver = { 732 .name = "rt1316-sdca", 733 .owner = THIS_MODULE, 734 .pm = &rt1316_pm, 735 }, 736 .probe = rt1316_sdw_probe, 737 .ops = &rt1316_slave_ops, 738 .id_table = rt1316_id, 739 }; 740 module_sdw_driver(rt1316_sdw_driver); 741 742 MODULE_DESCRIPTION("ASoC RT1316 driver SDCA SDW"); 743 MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>"); 744 MODULE_LICENSE("GPL"); 745