1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // Mediatek ALSA SoC AFE platform driver for 6797 4 // 5 // Copyright (c) 2018 MediaTek Inc. 6 // Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com> 7 8 #include <linux/delay.h> 9 #include <linux/module.h> 10 #include <linux/mfd/syscon.h> 11 #include <linux/of.h> 12 #include <linux/of_address.h> 13 #include <linux/pm_runtime.h> 14 15 #include "mt6797-afe-common.h" 16 #include "mt6797-afe-clk.h" 17 #include "mt6797-interconnection.h" 18 #include "mt6797-reg.h" 19 #include "../common/mtk-afe-platform-driver.h" 20 #include "../common/mtk-afe-fe-dai.h" 21 22 enum { 23 MTK_AFE_RATE_8K = 0, 24 MTK_AFE_RATE_11K = 1, 25 MTK_AFE_RATE_12K = 2, 26 MTK_AFE_RATE_384K = 3, 27 MTK_AFE_RATE_16K = 4, 28 MTK_AFE_RATE_22K = 5, 29 MTK_AFE_RATE_24K = 6, 30 MTK_AFE_RATE_130K = 7, 31 MTK_AFE_RATE_32K = 8, 32 MTK_AFE_RATE_44K = 9, 33 MTK_AFE_RATE_48K = 10, 34 MTK_AFE_RATE_88K = 11, 35 MTK_AFE_RATE_96K = 12, 36 MTK_AFE_RATE_174K = 13, 37 MTK_AFE_RATE_192K = 14, 38 MTK_AFE_RATE_260K = 15, 39 }; 40 41 enum { 42 MTK_AFE_DAI_MEMIF_RATE_8K = 0, 43 MTK_AFE_DAI_MEMIF_RATE_16K = 1, 44 MTK_AFE_DAI_MEMIF_RATE_32K = 2, 45 }; 46 47 enum { 48 MTK_AFE_PCM_RATE_8K = 0, 49 MTK_AFE_PCM_RATE_16K = 1, 50 MTK_AFE_PCM_RATE_32K = 2, 51 MTK_AFE_PCM_RATE_48K = 3, 52 }; 53 54 unsigned int mt6797_general_rate_transform(struct device *dev, 55 unsigned int rate) 56 { 57 switch (rate) { 58 case 8000: 59 return MTK_AFE_RATE_8K; 60 case 11025: 61 return MTK_AFE_RATE_11K; 62 case 12000: 63 return MTK_AFE_RATE_12K; 64 case 16000: 65 return MTK_AFE_RATE_16K; 66 case 22050: 67 return MTK_AFE_RATE_22K; 68 case 24000: 69 return MTK_AFE_RATE_24K; 70 case 32000: 71 return MTK_AFE_RATE_32K; 72 case 44100: 73 return MTK_AFE_RATE_44K; 74 case 48000: 75 return MTK_AFE_RATE_48K; 76 case 88200: 77 return MTK_AFE_RATE_88K; 78 case 96000: 79 return MTK_AFE_RATE_96K; 80 case 130000: 81 return MTK_AFE_RATE_130K; 82 case 176400: 83 return MTK_AFE_RATE_174K; 84 case 192000: 85 return MTK_AFE_RATE_192K; 86 case 260000: 87 return MTK_AFE_RATE_260K; 88 default: 89 dev_warn(dev, "%s(), rate %u invalid, use %d!!!\n", 90 __func__, rate, MTK_AFE_RATE_48K); 91 return MTK_AFE_RATE_48K; 92 } 93 } 94 95 static unsigned int dai_memif_rate_transform(struct device *dev, 96 unsigned int rate) 97 { 98 switch (rate) { 99 case 8000: 100 return MTK_AFE_DAI_MEMIF_RATE_8K; 101 case 16000: 102 return MTK_AFE_DAI_MEMIF_RATE_16K; 103 case 32000: 104 return MTK_AFE_DAI_MEMIF_RATE_32K; 105 default: 106 dev_warn(dev, "%s(), rate %u invalid, use %d!!!\n", 107 __func__, rate, MTK_AFE_DAI_MEMIF_RATE_16K); 108 return MTK_AFE_DAI_MEMIF_RATE_16K; 109 } 110 } 111 112 unsigned int mt6797_rate_transform(struct device *dev, 113 unsigned int rate, int aud_blk) 114 { 115 switch (aud_blk) { 116 case MT6797_MEMIF_DAI: 117 case MT6797_MEMIF_MOD_DAI: 118 return dai_memif_rate_transform(dev, rate); 119 default: 120 return mt6797_general_rate_transform(dev, rate); 121 } 122 } 123 124 static const struct snd_pcm_hardware mt6797_afe_hardware = { 125 .info = SNDRV_PCM_INFO_MMAP | 126 SNDRV_PCM_INFO_INTERLEAVED | 127 SNDRV_PCM_INFO_MMAP_VALID, 128 .formats = SNDRV_PCM_FMTBIT_S16_LE | 129 SNDRV_PCM_FMTBIT_S24_LE | 130 SNDRV_PCM_FMTBIT_S32_LE, 131 .period_bytes_min = 256, 132 .period_bytes_max = 4 * 48 * 1024, 133 .periods_min = 2, 134 .periods_max = 256, 135 .buffer_bytes_max = 8 * 48 * 1024, 136 .fifo_size = 0, 137 }; 138 139 static int mt6797_memif_fs(struct snd_pcm_substream *substream, 140 unsigned int rate) 141 { 142 struct snd_soc_pcm_runtime *rtd = substream->private_data; 143 struct snd_soc_component *component = 144 snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME); 145 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component); 146 int id = rtd->cpu_dai->id; 147 148 return mt6797_rate_transform(afe->dev, rate, id); 149 } 150 151 static int mt6797_irq_fs(struct snd_pcm_substream *substream, unsigned int rate) 152 { 153 struct snd_soc_pcm_runtime *rtd = substream->private_data; 154 struct snd_soc_component *component = 155 snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME); 156 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component); 157 158 return mt6797_general_rate_transform(afe->dev, rate); 159 } 160 161 #define MTK_PCM_RATES (SNDRV_PCM_RATE_8000_48000 |\ 162 SNDRV_PCM_RATE_88200 |\ 163 SNDRV_PCM_RATE_96000 |\ 164 SNDRV_PCM_RATE_176400 |\ 165 SNDRV_PCM_RATE_192000) 166 167 #define MTK_PCM_DAI_RATES (SNDRV_PCM_RATE_8000 |\ 168 SNDRV_PCM_RATE_16000 |\ 169 SNDRV_PCM_RATE_32000) 170 171 #define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ 172 SNDRV_PCM_FMTBIT_S24_LE |\ 173 SNDRV_PCM_FMTBIT_S32_LE) 174 175 static struct snd_soc_dai_driver mt6797_memif_dai_driver[] = { 176 /* FE DAIs: memory intefaces to CPU */ 177 { 178 .name = "DL1", 179 .id = MT6797_MEMIF_DL1, 180 .playback = { 181 .stream_name = "DL1", 182 .channels_min = 1, 183 .channels_max = 2, 184 .rates = MTK_PCM_RATES, 185 .formats = MTK_PCM_FORMATS, 186 }, 187 .ops = &mtk_afe_fe_ops, 188 }, 189 { 190 .name = "DL2", 191 .id = MT6797_MEMIF_DL2, 192 .playback = { 193 .stream_name = "DL2", 194 .channels_min = 1, 195 .channels_max = 2, 196 .rates = MTK_PCM_RATES, 197 .formats = MTK_PCM_FORMATS, 198 }, 199 .ops = &mtk_afe_fe_ops, 200 }, 201 { 202 .name = "DL3", 203 .id = MT6797_MEMIF_DL3, 204 .playback = { 205 .stream_name = "DL3", 206 .channels_min = 1, 207 .channels_max = 2, 208 .rates = MTK_PCM_RATES, 209 .formats = MTK_PCM_FORMATS, 210 }, 211 .ops = &mtk_afe_fe_ops, 212 }, 213 { 214 .name = "UL1", 215 .id = MT6797_MEMIF_VUL12, 216 .capture = { 217 .stream_name = "UL1", 218 .channels_min = 1, 219 .channels_max = 2, 220 .rates = MTK_PCM_RATES, 221 .formats = MTK_PCM_FORMATS, 222 }, 223 .ops = &mtk_afe_fe_ops, 224 }, 225 { 226 .name = "UL2", 227 .id = MT6797_MEMIF_AWB, 228 .capture = { 229 .stream_name = "UL2", 230 .channels_min = 1, 231 .channels_max = 2, 232 .rates = MTK_PCM_RATES, 233 .formats = MTK_PCM_FORMATS, 234 }, 235 .ops = &mtk_afe_fe_ops, 236 }, 237 { 238 .name = "UL3", 239 .id = MT6797_MEMIF_VUL, 240 .capture = { 241 .stream_name = "UL3", 242 .channels_min = 1, 243 .channels_max = 2, 244 .rates = MTK_PCM_RATES, 245 .formats = MTK_PCM_FORMATS, 246 }, 247 .ops = &mtk_afe_fe_ops, 248 }, 249 { 250 .name = "UL_MONO_1", 251 .id = MT6797_MEMIF_MOD_DAI, 252 .capture = { 253 .stream_name = "UL_MONO_1", 254 .channels_min = 1, 255 .channels_max = 1, 256 .rates = MTK_PCM_DAI_RATES, 257 .formats = MTK_PCM_FORMATS, 258 }, 259 .ops = &mtk_afe_fe_ops, 260 }, 261 { 262 .name = "UL_MONO_2", 263 .id = MT6797_MEMIF_DAI, 264 .capture = { 265 .stream_name = "UL_MONO_2", 266 .channels_min = 1, 267 .channels_max = 1, 268 .rates = MTK_PCM_DAI_RATES, 269 .formats = MTK_PCM_FORMATS, 270 }, 271 .ops = &mtk_afe_fe_ops, 272 }, 273 }; 274 275 /* dma widget & routes*/ 276 static const struct snd_kcontrol_new memif_ul1_ch1_mix[] = { 277 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN21, 278 I_ADDA_UL_CH1, 1, 0), 279 }; 280 281 static const struct snd_kcontrol_new memif_ul1_ch2_mix[] = { 282 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN22, 283 I_ADDA_UL_CH2, 1, 0), 284 }; 285 286 static const struct snd_kcontrol_new memif_ul2_ch1_mix[] = { 287 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN5, 288 I_ADDA_UL_CH1, 1, 0), 289 SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN5, 290 I_DL1_CH1, 1, 0), 291 SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN5, 292 I_DL2_CH1, 1, 0), 293 SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN5, 294 I_DL3_CH1, 1, 0), 295 }; 296 297 static const struct snd_kcontrol_new memif_ul2_ch2_mix[] = { 298 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN6, 299 I_ADDA_UL_CH2, 1, 0), 300 SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH2", AFE_CONN6, 301 I_DL1_CH2, 1, 0), 302 SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN6, 303 I_DL2_CH2, 1, 0), 304 SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH2", AFE_CONN6, 305 I_DL3_CH2, 1, 0), 306 }; 307 308 static const struct snd_kcontrol_new memif_ul3_ch1_mix[] = { 309 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN9, 310 I_ADDA_UL_CH1, 1, 0), 311 }; 312 313 static const struct snd_kcontrol_new memif_ul3_ch2_mix[] = { 314 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN10, 315 I_ADDA_UL_CH2, 1, 0), 316 }; 317 318 static const struct snd_kcontrol_new memif_ul_mono_1_mix[] = { 319 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN12, 320 I_ADDA_UL_CH1, 1, 0), 321 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN12, 322 I_ADDA_UL_CH2, 1, 0), 323 }; 324 325 static const struct snd_kcontrol_new memif_ul_mono_2_mix[] = { 326 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN11, 327 I_ADDA_UL_CH1, 1, 0), 328 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN11, 329 I_ADDA_UL_CH2, 1, 0), 330 }; 331 332 static const struct snd_soc_dapm_widget mt6797_memif_widgets[] = { 333 /* memif */ 334 SND_SOC_DAPM_MIXER("UL1_CH1", SND_SOC_NOPM, 0, 0, 335 memif_ul1_ch1_mix, ARRAY_SIZE(memif_ul1_ch1_mix)), 336 SND_SOC_DAPM_MIXER("UL1_CH2", SND_SOC_NOPM, 0, 0, 337 memif_ul1_ch2_mix, ARRAY_SIZE(memif_ul1_ch2_mix)), 338 339 SND_SOC_DAPM_MIXER("UL2_CH1", SND_SOC_NOPM, 0, 0, 340 memif_ul2_ch1_mix, ARRAY_SIZE(memif_ul2_ch1_mix)), 341 SND_SOC_DAPM_MIXER("UL2_CH2", SND_SOC_NOPM, 0, 0, 342 memif_ul2_ch2_mix, ARRAY_SIZE(memif_ul2_ch2_mix)), 343 344 SND_SOC_DAPM_MIXER("UL3_CH1", SND_SOC_NOPM, 0, 0, 345 memif_ul3_ch1_mix, ARRAY_SIZE(memif_ul3_ch1_mix)), 346 SND_SOC_DAPM_MIXER("UL3_CH2", SND_SOC_NOPM, 0, 0, 347 memif_ul3_ch2_mix, ARRAY_SIZE(memif_ul3_ch2_mix)), 348 349 SND_SOC_DAPM_MIXER("UL_MONO_1_CH1", SND_SOC_NOPM, 0, 0, 350 memif_ul_mono_1_mix, 351 ARRAY_SIZE(memif_ul_mono_1_mix)), 352 353 SND_SOC_DAPM_MIXER("UL_MONO_2_CH1", SND_SOC_NOPM, 0, 0, 354 memif_ul_mono_2_mix, 355 ARRAY_SIZE(memif_ul_mono_2_mix)), 356 }; 357 358 static const struct snd_soc_dapm_route mt6797_memif_routes[] = { 359 /* capture */ 360 {"UL1", NULL, "UL1_CH1"}, 361 {"UL1", NULL, "UL1_CH2"}, 362 {"UL1_CH1", "ADDA_UL_CH1", "ADDA Capture"}, 363 {"UL1_CH2", "ADDA_UL_CH2", "ADDA Capture"}, 364 365 {"UL2", NULL, "UL2_CH1"}, 366 {"UL2", NULL, "UL2_CH2"}, 367 {"UL2_CH1", "ADDA_UL_CH1", "ADDA Capture"}, 368 {"UL2_CH2", "ADDA_UL_CH2", "ADDA Capture"}, 369 370 {"UL3", NULL, "UL3_CH1"}, 371 {"UL3", NULL, "UL3_CH2"}, 372 {"UL3_CH1", "ADDA_UL_CH1", "ADDA Capture"}, 373 {"UL3_CH2", "ADDA_UL_CH2", "ADDA Capture"}, 374 375 {"UL_MONO_1", NULL, "UL_MONO_1_CH1"}, 376 {"UL_MONO_1_CH1", "ADDA_UL_CH1", "ADDA Capture"}, 377 {"UL_MONO_1_CH1", "ADDA_UL_CH2", "ADDA Capture"}, 378 379 {"UL_MONO_2", NULL, "UL_MONO_2_CH1"}, 380 {"UL_MONO_2_CH1", "ADDA_UL_CH1", "ADDA Capture"}, 381 {"UL_MONO_2_CH1", "ADDA_UL_CH2", "ADDA Capture"}, 382 }; 383 384 static const struct snd_soc_component_driver mt6797_afe_pcm_dai_component = { 385 .name = "mt6797-afe-pcm-dai", 386 }; 387 388 static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = { 389 [MT6797_MEMIF_DL1] = { 390 .name = "DL1", 391 .id = MT6797_MEMIF_DL1, 392 .reg_ofs_base = AFE_DL1_BASE, 393 .reg_ofs_cur = AFE_DL1_CUR, 394 .fs_reg = AFE_DAC_CON1, 395 .fs_shift = DL1_MODE_SFT, 396 .fs_maskbit = DL1_MODE_MASK, 397 .mono_reg = AFE_DAC_CON1, 398 .mono_shift = DL1_DATA_SFT, 399 .enable_reg = AFE_DAC_CON0, 400 .enable_shift = DL1_ON_SFT, 401 .hd_reg = AFE_MEMIF_HD_MODE, 402 .hd_shift = DL1_HD_SFT, 403 .agent_disable_reg = -1, 404 .msb_reg = -1, 405 }, 406 [MT6797_MEMIF_DL2] = { 407 .name = "DL2", 408 .id = MT6797_MEMIF_DL2, 409 .reg_ofs_base = AFE_DL2_BASE, 410 .reg_ofs_cur = AFE_DL2_CUR, 411 .fs_reg = AFE_DAC_CON1, 412 .fs_shift = DL2_MODE_SFT, 413 .fs_maskbit = DL2_MODE_MASK, 414 .mono_reg = AFE_DAC_CON1, 415 .mono_shift = DL2_DATA_SFT, 416 .enable_reg = AFE_DAC_CON0, 417 .enable_shift = DL2_ON_SFT, 418 .hd_reg = AFE_MEMIF_HD_MODE, 419 .hd_shift = DL2_HD_SFT, 420 .agent_disable_reg = -1, 421 .msb_reg = -1, 422 }, 423 [MT6797_MEMIF_DL3] = { 424 .name = "DL3", 425 .id = MT6797_MEMIF_DL3, 426 .reg_ofs_base = AFE_DL3_BASE, 427 .reg_ofs_cur = AFE_DL3_CUR, 428 .fs_reg = AFE_DAC_CON0, 429 .fs_shift = DL3_MODE_SFT, 430 .fs_maskbit = DL3_MODE_MASK, 431 .mono_reg = AFE_DAC_CON1, 432 .mono_shift = DL3_DATA_SFT, 433 .enable_reg = AFE_DAC_CON0, 434 .enable_shift = DL3_ON_SFT, 435 .hd_reg = AFE_MEMIF_HD_MODE, 436 .hd_shift = DL3_HD_SFT, 437 .agent_disable_reg = -1, 438 .msb_reg = -1, 439 }, 440 [MT6797_MEMIF_VUL] = { 441 .name = "VUL", 442 .id = MT6797_MEMIF_VUL, 443 .reg_ofs_base = AFE_VUL_BASE, 444 .reg_ofs_cur = AFE_VUL_CUR, 445 .fs_reg = AFE_DAC_CON1, 446 .fs_shift = VUL_MODE_SFT, 447 .fs_maskbit = VUL_MODE_MASK, 448 .mono_reg = AFE_DAC_CON1, 449 .mono_shift = VUL_DATA_SFT, 450 .enable_reg = AFE_DAC_CON0, 451 .enable_shift = VUL_ON_SFT, 452 .hd_reg = AFE_MEMIF_HD_MODE, 453 .hd_shift = VUL_HD_SFT, 454 .agent_disable_reg = -1, 455 .msb_reg = -1, 456 }, 457 [MT6797_MEMIF_AWB] = { 458 .name = "AWB", 459 .id = MT6797_MEMIF_AWB, 460 .reg_ofs_base = AFE_AWB_BASE, 461 .reg_ofs_cur = AFE_AWB_CUR, 462 .fs_reg = AFE_DAC_CON1, 463 .fs_shift = AWB_MODE_SFT, 464 .fs_maskbit = AWB_MODE_MASK, 465 .mono_reg = AFE_DAC_CON1, 466 .mono_shift = AWB_DATA_SFT, 467 .enable_reg = AFE_DAC_CON0, 468 .enable_shift = AWB_ON_SFT, 469 .hd_reg = AFE_MEMIF_HD_MODE, 470 .hd_shift = AWB_HD_SFT, 471 .agent_disable_reg = -1, 472 .msb_reg = -1, 473 }, 474 [MT6797_MEMIF_VUL12] = { 475 .name = "VUL12", 476 .id = MT6797_MEMIF_VUL12, 477 .reg_ofs_base = AFE_VUL_D2_BASE, 478 .reg_ofs_cur = AFE_VUL_D2_CUR, 479 .fs_reg = AFE_DAC_CON0, 480 .fs_shift = VUL_DATA2_MODE_SFT, 481 .fs_maskbit = VUL_DATA2_MODE_MASK, 482 .mono_reg = AFE_DAC_CON0, 483 .mono_shift = VUL_DATA2_DATA_SFT, 484 .enable_reg = AFE_DAC_CON0, 485 .enable_shift = VUL_DATA2_ON_SFT, 486 .hd_reg = AFE_MEMIF_HD_MODE, 487 .hd_shift = VUL_DATA2_HD_SFT, 488 .agent_disable_reg = -1, 489 .msb_reg = -1, 490 }, 491 [MT6797_MEMIF_DAI] = { 492 .name = "DAI", 493 .id = MT6797_MEMIF_DAI, 494 .reg_ofs_base = AFE_DAI_BASE, 495 .reg_ofs_cur = AFE_DAI_CUR, 496 .fs_reg = AFE_DAC_CON0, 497 .fs_shift = DAI_MODE_SFT, 498 .fs_maskbit = DAI_MODE_MASK, 499 .mono_reg = -1, 500 .mono_shift = 0, 501 .enable_reg = AFE_DAC_CON0, 502 .enable_shift = DAI_ON_SFT, 503 .hd_reg = AFE_MEMIF_HD_MODE, 504 .hd_shift = DAI_HD_SFT, 505 .agent_disable_reg = -1, 506 .msb_reg = -1, 507 }, 508 [MT6797_MEMIF_MOD_DAI] = { 509 .name = "MOD_DAI", 510 .id = MT6797_MEMIF_MOD_DAI, 511 .reg_ofs_base = AFE_MOD_DAI_BASE, 512 .reg_ofs_cur = AFE_MOD_DAI_CUR, 513 .fs_reg = AFE_DAC_CON1, 514 .fs_shift = MOD_DAI_MODE_SFT, 515 .fs_maskbit = MOD_DAI_MODE_MASK, 516 .mono_reg = -1, 517 .mono_shift = 0, 518 .enable_reg = AFE_DAC_CON0, 519 .enable_shift = MOD_DAI_ON_SFT, 520 .hd_reg = AFE_MEMIF_HD_MODE, 521 .hd_shift = MOD_DAI_HD_SFT, 522 .agent_disable_reg = -1, 523 .msb_reg = -1, 524 }, 525 }; 526 527 static const struct mtk_base_irq_data irq_data[MT6797_IRQ_NUM] = { 528 [MT6797_IRQ_1] = { 529 .id = MT6797_IRQ_1, 530 .irq_cnt_reg = AFE_IRQ_MCU_CNT1, 531 .irq_cnt_shift = AFE_IRQ_MCU_CNT1_SFT, 532 .irq_cnt_maskbit = AFE_IRQ_MCU_CNT1_MASK, 533 .irq_fs_reg = AFE_IRQ_MCU_CON, 534 .irq_fs_shift = IRQ1_MCU_MODE_SFT, 535 .irq_fs_maskbit = IRQ1_MCU_MODE_MASK, 536 .irq_en_reg = AFE_IRQ_MCU_CON, 537 .irq_en_shift = IRQ1_MCU_ON_SFT, 538 .irq_clr_reg = AFE_IRQ_MCU_CLR, 539 .irq_clr_shift = IRQ1_MCU_CLR_SFT, 540 }, 541 [MT6797_IRQ_2] = { 542 .id = MT6797_IRQ_2, 543 .irq_cnt_reg = AFE_IRQ_MCU_CNT2, 544 .irq_cnt_shift = AFE_IRQ_MCU_CNT2_SFT, 545 .irq_cnt_maskbit = AFE_IRQ_MCU_CNT2_MASK, 546 .irq_fs_reg = AFE_IRQ_MCU_CON, 547 .irq_fs_shift = IRQ2_MCU_MODE_SFT, 548 .irq_fs_maskbit = IRQ2_MCU_MODE_MASK, 549 .irq_en_reg = AFE_IRQ_MCU_CON, 550 .irq_en_shift = IRQ2_MCU_ON_SFT, 551 .irq_clr_reg = AFE_IRQ_MCU_CLR, 552 .irq_clr_shift = IRQ2_MCU_CLR_SFT, 553 }, 554 [MT6797_IRQ_3] = { 555 .id = MT6797_IRQ_3, 556 .irq_cnt_reg = AFE_IRQ_MCU_CNT3, 557 .irq_cnt_shift = AFE_IRQ_MCU_CNT3_SFT, 558 .irq_cnt_maskbit = AFE_IRQ_MCU_CNT3_MASK, 559 .irq_fs_reg = AFE_IRQ_MCU_CON, 560 .irq_fs_shift = IRQ3_MCU_MODE_SFT, 561 .irq_fs_maskbit = IRQ3_MCU_MODE_MASK, 562 .irq_en_reg = AFE_IRQ_MCU_CON, 563 .irq_en_shift = IRQ3_MCU_ON_SFT, 564 .irq_clr_reg = AFE_IRQ_MCU_CLR, 565 .irq_clr_shift = IRQ3_MCU_CLR_SFT, 566 }, 567 [MT6797_IRQ_4] = { 568 .id = MT6797_IRQ_4, 569 .irq_cnt_reg = AFE_IRQ_MCU_CNT4, 570 .irq_cnt_shift = AFE_IRQ_MCU_CNT4_SFT, 571 .irq_cnt_maskbit = AFE_IRQ_MCU_CNT4_MASK, 572 .irq_fs_reg = AFE_IRQ_MCU_CON, 573 .irq_fs_shift = IRQ4_MCU_MODE_SFT, 574 .irq_fs_maskbit = IRQ4_MCU_MODE_MASK, 575 .irq_en_reg = AFE_IRQ_MCU_CON, 576 .irq_en_shift = IRQ4_MCU_ON_SFT, 577 .irq_clr_reg = AFE_IRQ_MCU_CLR, 578 .irq_clr_shift = IRQ4_MCU_CLR_SFT, 579 }, 580 [MT6797_IRQ_7] = { 581 .id = MT6797_IRQ_7, 582 .irq_cnt_reg = AFE_IRQ_MCU_CNT7, 583 .irq_cnt_shift = AFE_IRQ_MCU_CNT7_SFT, 584 .irq_cnt_maskbit = AFE_IRQ_MCU_CNT7_MASK, 585 .irq_fs_reg = AFE_IRQ_MCU_CON, 586 .irq_fs_shift = IRQ7_MCU_MODE_SFT, 587 .irq_fs_maskbit = IRQ7_MCU_MODE_MASK, 588 .irq_en_reg = AFE_IRQ_MCU_CON, 589 .irq_en_shift = IRQ7_MCU_ON_SFT, 590 .irq_clr_reg = AFE_IRQ_MCU_CLR, 591 .irq_clr_shift = IRQ7_MCU_CLR_SFT, 592 }, 593 }; 594 595 static const struct regmap_config mt6797_afe_regmap_config = { 596 .reg_bits = 32, 597 .reg_stride = 4, 598 .val_bits = 32, 599 .max_register = AFE_MAX_REGISTER, 600 }; 601 602 static irqreturn_t mt6797_afe_irq_handler(int irq_id, void *dev) 603 { 604 struct mtk_base_afe *afe = dev; 605 struct mtk_base_afe_irq *irq; 606 unsigned int status; 607 unsigned int mcu_en; 608 int ret; 609 int i; 610 irqreturn_t irq_ret = IRQ_HANDLED; 611 612 /* get irq that is sent to MCU */ 613 regmap_read(afe->regmap, AFE_IRQ_MCU_EN, &mcu_en); 614 615 ret = regmap_read(afe->regmap, AFE_IRQ_MCU_STATUS, &status); 616 if (ret || (status & mcu_en) == 0) { 617 dev_err(afe->dev, "%s(), irq status err, ret %d, status 0x%x, mcu_en 0x%x\n", 618 __func__, ret, status, mcu_en); 619 620 /* only clear IRQ which is sent to MCU */ 621 status = mcu_en & AFE_IRQ_STATUS_BITS; 622 623 irq_ret = IRQ_NONE; 624 goto err_irq; 625 } 626 627 for (i = 0; i < MT6797_MEMIF_NUM; i++) { 628 struct mtk_base_afe_memif *memif = &afe->memif[i]; 629 630 if (!memif->substream) 631 continue; 632 633 irq = &afe->irqs[memif->irq_usage]; 634 635 if (status & (1 << irq->irq_data->irq_en_shift)) 636 snd_pcm_period_elapsed(memif->substream); 637 } 638 639 err_irq: 640 /* clear irq */ 641 regmap_write(afe->regmap, 642 AFE_IRQ_MCU_CLR, 643 status & AFE_IRQ_STATUS_BITS); 644 645 return irq_ret; 646 } 647 648 static int mt6797_afe_runtime_suspend(struct device *dev) 649 { 650 struct mtk_base_afe *afe = dev_get_drvdata(dev); 651 unsigned int afe_on_retm; 652 int retry = 0; 653 654 /* disable AFE */ 655 regmap_update_bits(afe->regmap, AFE_DAC_CON0, AFE_ON_MASK_SFT, 0x0); 656 do { 657 regmap_read(afe->regmap, AFE_DAC_CON0, &afe_on_retm); 658 if ((afe_on_retm & AFE_ON_RETM_MASK_SFT) == 0) 659 break; 660 661 udelay(10); 662 } while (++retry < 100000); 663 664 if (retry) 665 dev_warn(afe->dev, "%s(), retry %d\n", __func__, retry); 666 667 /* make sure all irq status are cleared */ 668 regmap_update_bits(afe->regmap, AFE_IRQ_MCU_CLR, 0xffff, 0xffff); 669 670 return mt6797_afe_disable_clock(afe); 671 } 672 673 static int mt6797_afe_runtime_resume(struct device *dev) 674 { 675 struct mtk_base_afe *afe = dev_get_drvdata(dev); 676 int ret; 677 678 ret = mt6797_afe_enable_clock(afe); 679 if (ret) 680 return ret; 681 682 /* irq signal to mcu only */ 683 regmap_write(afe->regmap, AFE_IRQ_MCU_EN, AFE_IRQ_MCU_EN_MASK_SFT); 684 685 /* force all memif use normal mode */ 686 regmap_update_bits(afe->regmap, AFE_MEMIF_HDALIGN, 687 0x7ff << 16, 0x7ff << 16); 688 /* force cpu use normal mode when access sram data */ 689 regmap_update_bits(afe->regmap, AFE_MEMIF_MSB, 690 CPU_COMPACT_MODE_MASK_SFT, 0); 691 /* force cpu use 8_24 format when writing 32bit data */ 692 regmap_update_bits(afe->regmap, AFE_MEMIF_MSB, 693 CPU_HD_ALIGN_MASK_SFT, 0); 694 695 /* set all output port to 24bit */ 696 regmap_update_bits(afe->regmap, AFE_CONN_24BIT, 697 0x3fffffff, 0x3fffffff); 698 699 /* enable AFE */ 700 regmap_update_bits(afe->regmap, AFE_DAC_CON0, 701 AFE_ON_MASK_SFT, 702 0x1 << AFE_ON_SFT); 703 704 return 0; 705 } 706 707 static int mt6797_afe_component_probe(struct snd_soc_component *component) 708 { 709 return mtk_afe_add_sub_dai_control(component); 710 } 711 712 static const struct snd_soc_component_driver mt6797_afe_component = { 713 .name = AFE_PCM_NAME, 714 .probe = mt6797_afe_component_probe, 715 .ioctl = snd_soc_pcm_lib_ioctl, 716 .pointer = mtk_afe_pcm_pointer, 717 .pcm_construct = mtk_afe_pcm_new, 718 .pcm_destruct = mtk_afe_pcm_free, 719 }; 720 721 static int mt6797_dai_memif_register(struct mtk_base_afe *afe) 722 { 723 struct mtk_base_afe_dai *dai; 724 725 dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL); 726 if (!dai) 727 return -ENOMEM; 728 729 list_add(&dai->list, &afe->sub_dais); 730 731 dai->dai_drivers = mt6797_memif_dai_driver; 732 dai->num_dai_drivers = ARRAY_SIZE(mt6797_memif_dai_driver); 733 734 dai->dapm_widgets = mt6797_memif_widgets; 735 dai->num_dapm_widgets = ARRAY_SIZE(mt6797_memif_widgets); 736 dai->dapm_routes = mt6797_memif_routes; 737 dai->num_dapm_routes = ARRAY_SIZE(mt6797_memif_routes); 738 return 0; 739 } 740 741 typedef int (*dai_register_cb)(struct mtk_base_afe *); 742 static const dai_register_cb dai_register_cbs[] = { 743 mt6797_dai_adda_register, 744 mt6797_dai_pcm_register, 745 mt6797_dai_hostless_register, 746 mt6797_dai_memif_register, 747 }; 748 749 static int mt6797_afe_pcm_dev_probe(struct platform_device *pdev) 750 { 751 struct mtk_base_afe *afe; 752 struct mt6797_afe_private *afe_priv; 753 struct device *dev; 754 int i, irq_id, ret; 755 756 afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL); 757 if (!afe) 758 return -ENOMEM; 759 760 afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv), 761 GFP_KERNEL); 762 if (!afe->platform_priv) 763 return -ENOMEM; 764 765 afe_priv = afe->platform_priv; 766 afe->dev = &pdev->dev; 767 dev = afe->dev; 768 769 /* initial audio related clock */ 770 ret = mt6797_init_clock(afe); 771 if (ret) { 772 dev_err(dev, "init clock error\n"); 773 return ret; 774 } 775 776 /* regmap init */ 777 afe->base_addr = devm_platform_ioremap_resource(pdev, 0); 778 if (IS_ERR(afe->base_addr)) 779 return PTR_ERR(afe->base_addr); 780 781 afe->regmap = devm_regmap_init_mmio(&pdev->dev, afe->base_addr, 782 &mt6797_afe_regmap_config); 783 if (IS_ERR(afe->regmap)) 784 return PTR_ERR(afe->regmap); 785 786 /* init memif */ 787 afe->memif_size = MT6797_MEMIF_NUM; 788 afe->memif = devm_kcalloc(dev, afe->memif_size, sizeof(*afe->memif), 789 GFP_KERNEL); 790 if (!afe->memif) 791 return -ENOMEM; 792 793 for (i = 0; i < afe->memif_size; i++) { 794 afe->memif[i].data = &memif_data[i]; 795 afe->memif[i].irq_usage = -1; 796 } 797 798 mutex_init(&afe->irq_alloc_lock); 799 800 /* irq initialize */ 801 afe->irqs_size = MT6797_IRQ_NUM; 802 afe->irqs = devm_kcalloc(dev, afe->irqs_size, sizeof(*afe->irqs), 803 GFP_KERNEL); 804 if (!afe->irqs) 805 return -ENOMEM; 806 807 for (i = 0; i < afe->irqs_size; i++) 808 afe->irqs[i].irq_data = &irq_data[i]; 809 810 /* request irq */ 811 irq_id = platform_get_irq(pdev, 0); 812 if (!irq_id) { 813 dev_err(dev, "%pOFn no irq found\n", dev->of_node); 814 return -ENXIO; 815 } 816 ret = devm_request_irq(dev, irq_id, mt6797_afe_irq_handler, 817 IRQF_TRIGGER_NONE, "asys-isr", (void *)afe); 818 if (ret) { 819 dev_err(dev, "could not request_irq for asys-isr\n"); 820 return ret; 821 } 822 823 /* init sub_dais */ 824 INIT_LIST_HEAD(&afe->sub_dais); 825 826 for (i = 0; i < ARRAY_SIZE(dai_register_cbs); i++) { 827 ret = dai_register_cbs[i](afe); 828 if (ret) { 829 dev_warn(afe->dev, "dai register i %d fail, ret %d\n", 830 i, ret); 831 return ret; 832 } 833 } 834 835 /* init dai_driver and component_driver */ 836 ret = mtk_afe_combine_sub_dai(afe); 837 if (ret) { 838 dev_warn(afe->dev, "mtk_afe_combine_sub_dai fail, ret %d\n", 839 ret); 840 return ret; 841 } 842 843 afe->mtk_afe_hardware = &mt6797_afe_hardware; 844 afe->memif_fs = mt6797_memif_fs; 845 afe->irq_fs = mt6797_irq_fs; 846 847 afe->runtime_resume = mt6797_afe_runtime_resume; 848 afe->runtime_suspend = mt6797_afe_runtime_suspend; 849 850 platform_set_drvdata(pdev, afe); 851 852 pm_runtime_enable(dev); 853 if (!pm_runtime_enabled(dev)) 854 goto err_pm_disable; 855 pm_runtime_get_sync(&pdev->dev); 856 857 /* register component */ 858 ret = devm_snd_soc_register_component(dev, &mt6797_afe_component, 859 NULL, 0); 860 if (ret) { 861 dev_warn(dev, "err_platform\n"); 862 goto err_pm_disable; 863 } 864 865 ret = devm_snd_soc_register_component(afe->dev, 866 &mt6797_afe_pcm_dai_component, 867 afe->dai_drivers, 868 afe->num_dai_drivers); 869 if (ret) { 870 dev_warn(dev, "err_dai_component\n"); 871 goto err_pm_disable; 872 } 873 874 return 0; 875 876 err_pm_disable: 877 pm_runtime_disable(dev); 878 879 return ret; 880 } 881 882 static int mt6797_afe_pcm_dev_remove(struct platform_device *pdev) 883 { 884 pm_runtime_disable(&pdev->dev); 885 if (!pm_runtime_status_suspended(&pdev->dev)) 886 mt6797_afe_runtime_suspend(&pdev->dev); 887 pm_runtime_put_sync(&pdev->dev); 888 889 return 0; 890 } 891 892 static const struct of_device_id mt6797_afe_pcm_dt_match[] = { 893 { .compatible = "mediatek,mt6797-audio", }, 894 {}, 895 }; 896 MODULE_DEVICE_TABLE(of, mt6797_afe_pcm_dt_match); 897 898 static const struct dev_pm_ops mt6797_afe_pm_ops = { 899 SET_RUNTIME_PM_OPS(mt6797_afe_runtime_suspend, 900 mt6797_afe_runtime_resume, NULL) 901 }; 902 903 static struct platform_driver mt6797_afe_pcm_driver = { 904 .driver = { 905 .name = "mt6797-audio", 906 .of_match_table = mt6797_afe_pcm_dt_match, 907 #ifdef CONFIG_PM 908 .pm = &mt6797_afe_pm_ops, 909 #endif 910 }, 911 .probe = mt6797_afe_pcm_dev_probe, 912 .remove = mt6797_afe_pcm_dev_remove, 913 }; 914 915 module_platform_driver(mt6797_afe_pcm_driver); 916 917 MODULE_DESCRIPTION("Mediatek ALSA SoC AFE platform driver for 6797"); 918 MODULE_AUTHOR("KaiChieh Chuang <kaichieh.chuang@mediatek.com>"); 919 MODULE_LICENSE("GPL v2"); 920