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Linux/sound/soc/mediatek/mt8183/mt8183-dai-pcm.c

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  1 // SPDX-License-Identifier: GPL-2.0
  2 //
  3 // MediaTek ALSA SoC Audio DAI I2S Control
  4 //
  5 // Copyright (c) 2018 MediaTek Inc.
  6 // Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
  7 
  8 #include <linux/regmap.h>
  9 #include <sound/pcm_params.h>
 10 #include "mt8183-afe-common.h"
 11 #include "mt8183-interconnection.h"
 12 #include "mt8183-reg.h"
 13 
 14 enum AUD_TX_LCH_RPT {
 15         AUD_TX_LCH_RPT_NO_REPEAT = 0,
 16         AUD_TX_LCH_RPT_REPEAT = 1
 17 };
 18 
 19 enum AUD_VBT_16K_MODE {
 20         AUD_VBT_16K_MODE_DISABLE = 0,
 21         AUD_VBT_16K_MODE_ENABLE = 1
 22 };
 23 
 24 enum AUD_EXT_MODEM {
 25         AUD_EXT_MODEM_SELECT_INTERNAL = 0,
 26         AUD_EXT_MODEM_SELECT_EXTERNAL = 1
 27 };
 28 
 29 enum AUD_PCM_SYNC_TYPE {
 30         /* bck sync length = 1 */
 31         AUD_PCM_ONE_BCK_CYCLE_SYNC = 0,
 32         /* bck sync length = PCM_INTF_CON1[9:13] */
 33         AUD_PCM_EXTENDED_BCK_CYCLE_SYNC = 1
 34 };
 35 
 36 enum AUD_BT_MODE {
 37         AUD_BT_MODE_DUAL_MIC_ON_TX = 0,
 38         AUD_BT_MODE_SINGLE_MIC_ON_TX = 1
 39 };
 40 
 41 enum AUD_PCM_AFIFO_SRC {
 42         /* slave mode & external modem uses different crystal */
 43         AUD_PCM_AFIFO_ASRC = 0,
 44         /* slave mode & external modem uses the same crystal */
 45         AUD_PCM_AFIFO_AFIFO = 1
 46 };
 47 
 48 enum AUD_PCM_CLOCK_SOURCE {
 49         AUD_PCM_CLOCK_MASTER_MODE = 0,
 50         AUD_PCM_CLOCK_SLAVE_MODE = 1
 51 };
 52 
 53 enum AUD_PCM_WLEN {
 54         AUD_PCM_WLEN_PCM_32_BCK_CYCLES = 0,
 55         AUD_PCM_WLEN_PCM_64_BCK_CYCLES = 1
 56 };
 57 
 58 enum AUD_PCM_MODE {
 59         AUD_PCM_MODE_PCM_MODE_8K = 0,
 60         AUD_PCM_MODE_PCM_MODE_16K = 1,
 61         AUD_PCM_MODE_PCM_MODE_32K = 2,
 62         AUD_PCM_MODE_PCM_MODE_48K = 3,
 63 };
 64 
 65 enum AUD_PCM_FMT {
 66         AUD_PCM_FMT_I2S = 0,
 67         AUD_PCM_FMT_EIAJ = 1,
 68         AUD_PCM_FMT_PCM_MODE_A = 2,
 69         AUD_PCM_FMT_PCM_MODE_B = 3
 70 };
 71 
 72 enum AUD_BCLK_OUT_INV {
 73         AUD_BCLK_OUT_INV_NO_INVERSE = 0,
 74         AUD_BCLK_OUT_INV_INVERSE = 1
 75 };
 76 
 77 enum AUD_PCM_EN {
 78         AUD_PCM_EN_DISABLE = 0,
 79         AUD_PCM_EN_ENABLE = 1
 80 };
 81 
 82 /* dai component */
 83 static const struct snd_kcontrol_new mtk_pcm_1_playback_ch1_mix[] = {
 84         SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN7,
 85                                     I_ADDA_UL_CH1, 1, 0),
 86         SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN7,
 87                                     I_DL2_CH1, 1, 0),
 88 };
 89 
 90 static const struct snd_kcontrol_new mtk_pcm_1_playback_ch2_mix[] = {
 91         SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN8,
 92                                     I_ADDA_UL_CH2, 1, 0),
 93         SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN8,
 94                                     I_DL2_CH2, 1, 0),
 95 };
 96 
 97 static const struct snd_kcontrol_new mtk_pcm_1_playback_ch4_mix[] = {
 98         SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN27,
 99                                     I_DL1_CH1, 1, 0),
100 };
101 
102 static const struct snd_kcontrol_new mtk_pcm_2_playback_ch1_mix[] = {
103         SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN17,
104                                     I_ADDA_UL_CH1, 1, 0),
105         SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN17,
106                                     I_DL2_CH1, 1, 0),
107 };
108 
109 static const struct snd_kcontrol_new mtk_pcm_2_playback_ch2_mix[] = {
110         SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN18,
111                                     I_ADDA_UL_CH2, 1, 0),
112         SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN18,
113                                     I_DL2_CH2, 1, 0),
114 };
115 
116 static const struct snd_kcontrol_new mtk_pcm_2_playback_ch4_mix[] = {
117         SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN24,
118                                     I_DL1_CH1, 1, 0),
119 };
120 
121 static const struct snd_soc_dapm_widget mtk_dai_pcm_widgets[] = {
122         /* inter-connections */
123         SND_SOC_DAPM_MIXER("PCM_1_PB_CH1", SND_SOC_NOPM, 0, 0,
124                            mtk_pcm_1_playback_ch1_mix,
125                            ARRAY_SIZE(mtk_pcm_1_playback_ch1_mix)),
126         SND_SOC_DAPM_MIXER("PCM_1_PB_CH2", SND_SOC_NOPM, 0, 0,
127                            mtk_pcm_1_playback_ch2_mix,
128                            ARRAY_SIZE(mtk_pcm_1_playback_ch2_mix)),
129         SND_SOC_DAPM_MIXER("PCM_1_PB_CH4", SND_SOC_NOPM, 0, 0,
130                            mtk_pcm_1_playback_ch4_mix,
131                            ARRAY_SIZE(mtk_pcm_1_playback_ch4_mix)),
132         SND_SOC_DAPM_MIXER("PCM_2_PB_CH1", SND_SOC_NOPM, 0, 0,
133                            mtk_pcm_2_playback_ch1_mix,
134                            ARRAY_SIZE(mtk_pcm_2_playback_ch1_mix)),
135         SND_SOC_DAPM_MIXER("PCM_2_PB_CH2", SND_SOC_NOPM, 0, 0,
136                            mtk_pcm_2_playback_ch2_mix,
137                            ARRAY_SIZE(mtk_pcm_2_playback_ch2_mix)),
138         SND_SOC_DAPM_MIXER("PCM_2_PB_CH4", SND_SOC_NOPM, 0, 0,
139                            mtk_pcm_2_playback_ch4_mix,
140                            ARRAY_SIZE(mtk_pcm_2_playback_ch4_mix)),
141 
142         SND_SOC_DAPM_SUPPLY("PCM_1_EN", PCM_INTF_CON1, PCM_EN_SFT, 0,
143                             NULL, 0),
144 
145         SND_SOC_DAPM_SUPPLY("PCM_2_EN", PCM2_INTF_CON, PCM2_EN_SFT, 0,
146                             NULL, 0),
147 
148         SND_SOC_DAPM_INPUT("MD1_TO_AFE"),
149         SND_SOC_DAPM_INPUT("MD2_TO_AFE"),
150         SND_SOC_DAPM_OUTPUT("AFE_TO_MD1"),
151         SND_SOC_DAPM_OUTPUT("AFE_TO_MD2"),
152 };
153 
154 static const struct snd_soc_dapm_route mtk_dai_pcm_routes[] = {
155         {"PCM 1 Playback", NULL, "PCM_1_PB_CH1"},
156         {"PCM 1 Playback", NULL, "PCM_1_PB_CH2"},
157         {"PCM 1 Playback", NULL, "PCM_1_PB_CH4"},
158         {"PCM 2 Playback", NULL, "PCM_2_PB_CH1"},
159         {"PCM 2 Playback", NULL, "PCM_2_PB_CH2"},
160         {"PCM 2 Playback", NULL, "PCM_2_PB_CH4"},
161 
162         {"PCM 1 Playback", NULL, "PCM_1_EN"},
163         {"PCM 2 Playback", NULL, "PCM_2_EN"},
164         {"PCM 1 Capture", NULL, "PCM_1_EN"},
165         {"PCM 2 Capture", NULL, "PCM_2_EN"},
166 
167         {"AFE_TO_MD1", NULL, "PCM 2 Playback"},
168         {"AFE_TO_MD2", NULL, "PCM 1 Playback"},
169         {"PCM 2 Capture", NULL, "MD1_TO_AFE"},
170         {"PCM 1 Capture", NULL, "MD2_TO_AFE"},
171 
172         {"PCM_1_PB_CH1", "DL2_CH1", "DL2"},
173         {"PCM_1_PB_CH2", "DL2_CH2", "DL2"},
174         {"PCM_1_PB_CH4", "DL1_CH1", "DL1"},
175         {"PCM_2_PB_CH1", "DL2_CH1", "DL2"},
176         {"PCM_2_PB_CH2", "DL2_CH2", "DL2"},
177         {"PCM_2_PB_CH4", "DL1_CH1", "DL1"},
178 };
179 
180 /* dai ops */
181 static int mtk_dai_pcm_hw_params(struct snd_pcm_substream *substream,
182                                  struct snd_pcm_hw_params *params,
183                                  struct snd_soc_dai *dai)
184 {
185         struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
186         unsigned int rate = params_rate(params);
187         unsigned int rate_reg = mt8183_rate_transform(afe->dev, rate, dai->id);
188         unsigned int pcm_con = 0;
189 
190         dev_dbg(afe->dev, "%s(), id %d, stream %d, rate %d, rate_reg %d, widget active p %d, c %d\n",
191                 __func__,
192                 dai->id,
193                 substream->stream,
194                 rate,
195                 rate_reg,
196                 dai->playback_widget->active,
197                 dai->capture_widget->active);
198 
199         if (dai->playback_widget->active || dai->capture_widget->active)
200                 return 0;
201 
202         switch (dai->id) {
203         case MT8183_DAI_PCM_1:
204                 pcm_con |= AUD_BCLK_OUT_INV_NO_INVERSE << PCM_BCLK_OUT_INV_SFT;
205                 pcm_con |= AUD_TX_LCH_RPT_NO_REPEAT << PCM_TX_LCH_RPT_SFT;
206                 pcm_con |= AUD_VBT_16K_MODE_DISABLE << PCM_VBT_16K_MODE_SFT;
207                 pcm_con |= AUD_EXT_MODEM_SELECT_INTERNAL << PCM_EXT_MODEM_SFT;
208                 pcm_con |= 0 << PCM_SYNC_LENGTH_SFT;
209                 pcm_con |= AUD_PCM_ONE_BCK_CYCLE_SYNC << PCM_SYNC_TYPE_SFT;
210                 pcm_con |= AUD_BT_MODE_DUAL_MIC_ON_TX << PCM_BT_MODE_SFT;
211                 pcm_con |= AUD_PCM_AFIFO_AFIFO << PCM_BYP_ASRC_SFT;
212                 pcm_con |= AUD_PCM_CLOCK_SLAVE_MODE << PCM_SLAVE_SFT;
213                 pcm_con |= rate_reg << PCM_MODE_SFT;
214                 pcm_con |= AUD_PCM_FMT_PCM_MODE_B << PCM_FMT_SFT;
215 
216                 regmap_update_bits(afe->regmap, PCM_INTF_CON1,
217                                    0xfffffffe, pcm_con);
218                 break;
219         case MT8183_DAI_PCM_2:
220                 pcm_con |= AUD_TX_LCH_RPT_NO_REPEAT << PCM2_TX_LCH_RPT_SFT;
221                 pcm_con |= AUD_VBT_16K_MODE_DISABLE << PCM2_VBT_16K_MODE_SFT;
222                 pcm_con |= AUD_BT_MODE_DUAL_MIC_ON_TX << PCM2_BT_MODE_SFT;
223                 pcm_con |= AUD_PCM_AFIFO_AFIFO << PCM2_AFIFO_SFT;
224                 pcm_con |= AUD_PCM_WLEN_PCM_32_BCK_CYCLES << PCM2_WLEN_SFT;
225                 pcm_con |= rate_reg << PCM2_MODE_SFT;
226                 pcm_con |= AUD_PCM_FMT_PCM_MODE_B << PCM2_FMT_SFT;
227 
228                 regmap_update_bits(afe->regmap, PCM2_INTF_CON,
229                                    0xfffffffe, pcm_con);
230                 break;
231         default:
232                 dev_warn(afe->dev, "%s(), id %d not support\n",
233                          __func__, dai->id);
234                 return -EINVAL;
235         }
236 
237         return 0;
238 }
239 
240 static const struct snd_soc_dai_ops mtk_dai_pcm_ops = {
241         .hw_params = mtk_dai_pcm_hw_params,
242 };
243 
244 /* dai driver */
245 #define MTK_PCM_RATES (SNDRV_PCM_RATE_8000 |\
246                        SNDRV_PCM_RATE_16000 |\
247                        SNDRV_PCM_RATE_32000 |\
248                        SNDRV_PCM_RATE_48000)
249 
250 #define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
251                          SNDRV_PCM_FMTBIT_S24_LE |\
252                          SNDRV_PCM_FMTBIT_S32_LE)
253 
254 static struct snd_soc_dai_driver mtk_dai_pcm_driver[] = {
255         {
256                 .name = "PCM 1",
257                 .id = MT8183_DAI_PCM_1,
258                 .playback = {
259                         .stream_name = "PCM 1 Playback",
260                         .channels_min = 1,
261                         .channels_max = 2,
262                         .rates = MTK_PCM_RATES,
263                         .formats = MTK_PCM_FORMATS,
264                 },
265                 .capture = {
266                         .stream_name = "PCM 1 Capture",
267                         .channels_min = 1,
268                         .channels_max = 2,
269                         .rates = MTK_PCM_RATES,
270                         .formats = MTK_PCM_FORMATS,
271                 },
272                 .ops = &mtk_dai_pcm_ops,
273                 .symmetric_rates = 1,
274                 .symmetric_samplebits = 1,
275         },
276         {
277                 .name = "PCM 2",
278                 .id = MT8183_DAI_PCM_2,
279                 .playback = {
280                         .stream_name = "PCM 2 Playback",
281                         .channels_min = 1,
282                         .channels_max = 2,
283                         .rates = MTK_PCM_RATES,
284                         .formats = MTK_PCM_FORMATS,
285                 },
286                 .capture = {
287                         .stream_name = "PCM 2 Capture",
288                         .channels_min = 1,
289                         .channels_max = 2,
290                         .rates = MTK_PCM_RATES,
291                         .formats = MTK_PCM_FORMATS,
292                 },
293                 .ops = &mtk_dai_pcm_ops,
294                 .symmetric_rates = 1,
295                 .symmetric_samplebits = 1,
296         },
297 };
298 
299 int mt8183_dai_pcm_register(struct mtk_base_afe *afe)
300 {
301         struct mtk_base_afe_dai *dai;
302 
303         dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
304         if (!dai)
305                 return -ENOMEM;
306 
307         list_add(&dai->list, &afe->sub_dais);
308 
309         dai->dai_drivers = mtk_dai_pcm_driver;
310         dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_pcm_driver);
311 
312         dai->dapm_widgets = mtk_dai_pcm_widgets;
313         dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_pcm_widgets);
314         dai->dapm_routes = mtk_dai_pcm_routes;
315         dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_pcm_routes);
316 
317         return 0;
318 }
319 

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