1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * MediaTek ALSA SoC Audio DAI I2S Control 4 * 5 * Copyright (c) 2025 MediaTek Inc. 6 * Author: Darren Ye <darren.ye@mediatek.com> 7 */ 8 9 #include <linux/regmap.h> 10 11 #include <sound/pcm_params.h> 12 13 #include "mt8189-afe-common.h" 14 #include "mt8189-interconnection.h" 15 #include "mt8189-afe-clk.h" 16 17 enum AUD_TX_LCH_RPT { 18 AUD_TX_LCH_RPT_NO_REPEAT, 19 AUD_TX_LCH_RPT_REPEAT 20 }; 21 22 enum AUD_VBT_16K_MODE { 23 AUD_VBT_16K_MODE_DISABLE, 24 AUD_VBT_16K_MODE_ENABLE 25 }; 26 27 enum AUD_EXT_MODEM { 28 AUD_EXT_MODEM_SELECT_INTERNAL, 29 AUD_EXT_MODEM_SELECT_EXTERNAL 30 }; 31 32 enum AUD_PCM_SYNC_TYPE { 33 /* bck sync length = 1 */ 34 AUD_PCM_ONE_BCK_CYCLE_SYNC, 35 /* bck sync length = PCM_INTF_CON1[9:13] */ 36 AUD_PCM_EXTENDED_BCK_CYCLE_SYNC 37 }; 38 39 enum AUD_BT_MODE { 40 AUD_BT_MODE_DUAL_MIC_ON_TX, 41 AUD_BT_MODE_SINGLE_MIC_ON_TX 42 }; 43 44 enum AUD_PCM_AFIFO_SRC { 45 /* slave mode & external modem uses different crystal */ 46 AUD_PCM_AFIFO_ASRC, 47 /* slave mode & external modem uses the same crystal */ 48 AUD_PCM_AFIFO_AFIFO 49 }; 50 51 enum AUD_PCM_CLOCK_SOURCE { 52 AUD_PCM_CLOCK_MASTER_MODE, 53 AUD_PCM_CLOCK_SLAVE_MODE 54 }; 55 56 enum AUD_PCM_WLEN { 57 AUD_PCM_WLEN_PCM_32_BCK_CYCLES, 58 AUD_PCM_WLEN_PCM_64_BCK_CYCLES 59 }; 60 61 enum AUD_PCM_MODE { 62 AUD_PCM_MODE_PCM_MODE_8K, 63 AUD_PCM_MODE_PCM_MODE_16K, 64 AUD_PCM_MODE_PCM_MODE_32K, 65 AUD_PCM_MODE_PCM_MODE_48K 66 }; 67 68 enum AUD_PCM_FMT { 69 AUD_PCM_FMT_I2S, 70 AUD_PCM_FMT_EIAJ, 71 AUD_PCM_FMT_PCM_MODE_A, 72 AUD_PCM_FMT_PCM_MODE_B 73 }; 74 75 enum AUD_BCLK_OUT_INV { 76 AUD_BCLK_OUT_INV_NO_INVERSE, 77 AUD_BCLK_OUT_INV_INVERSE 78 }; 79 80 enum AUD_PCM_EN { 81 AUD_PCM_EN_DISABLE, 82 AUD_PCM_EN_ENABLE 83 }; 84 85 enum AUD_PCM1_1X_EN_DOMAIN { 86 HOPPING_26M, 87 APLL, 88 SLAVE = 6 89 }; 90 91 enum AUD_PCM1_1X_EN_SLAVE_MODE { 92 PCM0_SLAVE_1X_EN, 93 PCM1_SLAVE_1X_EN 94 }; 95 96 enum { 97 PCM_8K, 98 PCM_16K = 4, 99 PCM_32K = 8, 100 PCM_48K = 10 101 }; 102 103 static unsigned int pcm_1x_rate_transform(struct device *dev, 104 unsigned int rate) 105 { 106 switch (rate) { 107 case 8000: 108 return PCM_8K; 109 case 16000: 110 return PCM_16K; 111 case 32000: 112 return PCM_32K; 113 case 48000: 114 return PCM_48K; 115 default: 116 dev_warn(dev, "rate %u invalid, use %d!!!\n", 117 rate, PCM_48K); 118 return PCM_48K; 119 } 120 } 121 122 static unsigned int pcm_rate_transform(struct device *dev, 123 unsigned int rate) 124 { 125 switch (rate) { 126 case 8000: 127 return MTK_AFE_PCM_RATE_8K; 128 case 16000: 129 return MTK_AFE_PCM_RATE_16K; 130 case 32000: 131 return MTK_AFE_PCM_RATE_32K; 132 case 48000: 133 return MTK_AFE_PCM_RATE_48K; 134 default: 135 dev_warn(dev, "rate %u invalid, use %d\n", 136 rate, MTK_AFE_PCM_RATE_48K); 137 return MTK_AFE_PCM_RATE_48K; 138 } 139 } 140 141 /* dai component */ 142 static const struct snd_kcontrol_new mtk_pcm_0_playback_ch1_mix[] = { 143 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN096_0, 144 I_ADDA_UL_CH1, 1, 0), 145 SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN096_1, 146 I_DL2_CH1, 1, 0), 147 SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH1", AFE_CONN096_1, 148 I_DL_24CH_CH1, 1, 0), 149 }; 150 151 static const struct snd_kcontrol_new mtk_pcm_0_playback_ch2_mix[] = { 152 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN097_0, 153 I_ADDA_UL_CH2, 1, 0), 154 SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN097_1, 155 I_DL2_CH2, 1, 0), 156 SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH2", AFE_CONN097_1, 157 I_DL_24CH_CH2, 1, 0), 158 }; 159 160 static const struct snd_kcontrol_new mtk_pcm_0_playback_ch4_mix[] = { 161 SOC_DAPM_SINGLE_AUTODISABLE("I2SIN1_CH1", AFE_CONN099_4, 162 I_I2SIN1_CH1, 1, 0), 163 SOC_DAPM_SINGLE_AUTODISABLE("I2SIN1_CH2", AFE_CONN099_4, 164 I_I2SIN1_CH2, 1, 0), 165 SOC_DAPM_SINGLE_AUTODISABLE("DL0_CH1", AFE_CONN099_1, 166 I_DL0_CH1, 1, 0), 167 SOC_DAPM_SINGLE_AUTODISABLE("DL_24CH_CH1", AFE_CONN099_1, 168 I_DL_24CH_CH1, 1, 0), 169 }; 170 171 static const struct snd_soc_dapm_widget mtk_dai_pcm_widgets[] = { 172 /* inter-connections */ 173 SND_SOC_DAPM_MIXER("PCM_0_PB_CH1", SND_SOC_NOPM, 0, 0, 174 mtk_pcm_0_playback_ch1_mix, 175 ARRAY_SIZE(mtk_pcm_0_playback_ch1_mix)), 176 SND_SOC_DAPM_MIXER("PCM_0_PB_CH2", SND_SOC_NOPM, 0, 0, 177 mtk_pcm_0_playback_ch2_mix, 178 ARRAY_SIZE(mtk_pcm_0_playback_ch2_mix)), 179 SND_SOC_DAPM_MIXER("PCM_0_PB_CH4", SND_SOC_NOPM, 0, 0, 180 mtk_pcm_0_playback_ch4_mix, 181 ARRAY_SIZE(mtk_pcm_0_playback_ch4_mix)), 182 183 SND_SOC_DAPM_SUPPLY("PCM_0_EN", 184 AFE_PCM0_INTF_CON0, PCM0_EN_SFT, 0, 185 NULL, 0), 186 187 SND_SOC_DAPM_SUPPLY("PCM0_CG", AUDIO_TOP_CON0, PDN_PCM0_SFT, 1, 188 NULL, 0), 189 190 SND_SOC_DAPM_INPUT("AFE_PCM_INPUT"), 191 SND_SOC_DAPM_OUTPUT("AFE_PCM_OUTPUT"), 192 }; 193 194 static const struct snd_soc_dapm_route mtk_dai_pcm_routes[] = { 195 {"PCM 0 Playback", NULL, "PCM_0_PB_CH1"}, 196 {"PCM 0 Playback", NULL, "PCM_0_PB_CH2"}, 197 {"PCM 0 Playback", NULL, "PCM_0_PB_CH4"}, 198 199 {"PCM 0 Playback", NULL, "PCM_0_EN"}, 200 {"PCM 0 Capture", NULL, "PCM_0_EN"}, 201 {"PCM 0 Playback", NULL, "PCM0_CG"}, 202 {"PCM 0 Capture", NULL, "PCM0_CG"}, 203 204 {"AFE_PCM_OUTPUT", NULL, "PCM 0 Playback"}, 205 {"PCM 0 Capture", NULL, "AFE_PCM_INPUT"}, 206 207 {"PCM_0_PB_CH1", "DL2_CH1", "DL2"}, 208 {"PCM_0_PB_CH2", "DL2_CH2", "DL2"}, 209 {"PCM_0_PB_CH4", "DL0_CH1", "DL0"}, 210 211 {"PCM_0_PB_CH1", "DL_24CH_CH1", "DL_24CH"}, 212 {"PCM_0_PB_CH2", "DL_24CH_CH2", "DL_24CH"}, 213 {"PCM_0_PB_CH4", "DL_24CH_CH1", "DL_24CH"}, 214 }; 215 216 /* dai ops */ 217 static int mtk_dai_pcm_hw_params(struct snd_pcm_substream *substream, 218 struct snd_pcm_hw_params *params, 219 struct snd_soc_dai *dai) 220 { 221 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 222 unsigned int rate = params_rate(params); 223 unsigned int rate_reg = pcm_rate_transform(afe->dev, rate); 224 unsigned int x_rate_reg = pcm_1x_rate_transform(afe->dev, rate); 225 unsigned int pcm_con0; 226 unsigned int pcm_con1; 227 unsigned int playback_active = 0; 228 unsigned int capture_active = 0; 229 struct snd_soc_dapm_widget *playback_widget = 230 snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK); 231 struct snd_soc_dapm_widget *capture_widget = 232 snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE); 233 234 if (playback_widget) 235 playback_active = playback_widget->active; 236 if (capture_widget) 237 capture_active = capture_widget->active; 238 dev_dbg(afe->dev, 239 "id %d, stream %d, rate %d, rate_reg %d, active p %d, c %d\n", 240 dai->id, substream->stream, rate, rate_reg, 241 playback_active, capture_active); 242 243 if (playback_active || capture_active) 244 return 0; 245 switch (dai->id) { 246 case MT8189_DAI_PCM_0: 247 pcm_con0 = AUD_BCLK_OUT_INV_NO_INVERSE << PCM0_BCLK_OUT_INV_SFT; 248 pcm_con0 |= AUD_TX_LCH_RPT_NO_REPEAT << PCM0_TX_LCH_RPT_SFT; 249 pcm_con0 |= AUD_VBT_16K_MODE_DISABLE << PCM0_VBT_16K_MODE_SFT; 250 pcm_con0 |= 0 << PCM0_SYNC_LENGTH_SFT; 251 pcm_con0 |= AUD_PCM_ONE_BCK_CYCLE_SYNC << PCM0_SYNC_TYPE_SFT; 252 pcm_con0 |= AUD_PCM_AFIFO_AFIFO << PCM0_BYP_ASRC_SFT; 253 pcm_con0 |= AUD_PCM_CLOCK_MASTER_MODE << PCM0_SLAVE_SFT; 254 pcm_con0 |= rate_reg << PCM0_MODE_SFT; 255 pcm_con0 |= AUD_PCM_FMT_I2S << PCM0_FMT_SFT; 256 257 pcm_con1 = AUD_EXT_MODEM_SELECT_INTERNAL << PCM0_EXT_MODEM_SFT; 258 pcm_con1 |= AUD_BT_MODE_DUAL_MIC_ON_TX << PCM0_BT_MODE_SFT; 259 pcm_con1 |= HOPPING_26M << PCM0_1X_EN_DOMAIN_SFT; 260 pcm_con1 |= x_rate_reg << PCM0_1X_EN_MODE_SFT; 261 262 regmap_update_bits(afe->regmap, AFE_PCM0_INTF_CON0, 263 ~(unsigned int)PCM0_EN_MASK_SFT, pcm_con0); 264 regmap_update_bits(afe->regmap, AFE_PCM0_INTF_CON1, 265 AFE_PCM0_INTF_CON1_MASK_MON_MASK_SFT, 266 pcm_con1); 267 break; 268 default: 269 dev_err(afe->dev, "%s(), id %d not support\n", 270 __func__, dai->id); 271 return -EINVAL; 272 } 273 return 0; 274 } 275 276 static const struct snd_soc_dai_ops mtk_dai_pcm_ops = { 277 .hw_params = mtk_dai_pcm_hw_params, 278 }; 279 280 /* dai driver */ 281 #define MTK_PCM_RATES (SNDRV_PCM_RATE_8000 |\ 282 SNDRV_PCM_RATE_16000 |\ 283 SNDRV_PCM_RATE_32000 |\ 284 SNDRV_PCM_RATE_48000) 285 286 #define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ 287 SNDRV_PCM_FMTBIT_S24_LE |\ 288 SNDRV_PCM_FMTBIT_S32_LE) 289 290 static struct snd_soc_dai_driver mtk_dai_pcm_driver[] = { 291 { 292 .name = "PCM 0", 293 .id = MT8189_DAI_PCM_0, 294 .playback = { 295 .stream_name = "PCM 0 Playback", 296 .channels_min = 1, 297 .channels_max = 2, 298 .rates = MTK_PCM_RATES, 299 .formats = MTK_PCM_FORMATS, 300 }, 301 .capture = { 302 .stream_name = "PCM 0 Capture", 303 .channels_min = 1, 304 .channels_max = 2, 305 .rates = MTK_PCM_RATES, 306 .formats = MTK_PCM_FORMATS, 307 }, 308 .ops = &mtk_dai_pcm_ops, 309 .symmetric_rate = 1, 310 .symmetric_sample_bits = 1, 311 }, 312 }; 313 314 int mt8189_dai_pcm_register(struct mtk_base_afe *afe) 315 { 316 struct mtk_base_afe_dai *dai; 317 318 dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL); 319 if (!dai) 320 return -ENOMEM; 321 322 dai->dai_drivers = mtk_dai_pcm_driver; 323 dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_pcm_driver); 324 dai->dapm_widgets = mtk_dai_pcm_widgets; 325 dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_pcm_widgets); 326 dai->dapm_routes = mtk_dai_pcm_routes; 327 dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_pcm_routes); 328 329 list_add(&dai->list, &afe->sub_dais); 330 331 return 0; 332 } 333