1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // MediaTek ALSA SoC Audio DAI ADDA Control
4 //
5 // Copyright (c) 2018 MediaTek Inc.
6 // Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
7
8 #include <linux/regmap.h>
9 #include <linux/delay.h>
10 #include "mt6797-afe-common.h"
11 #include "mt6797-interconnection.h"
12 #include "mt6797-reg.h"
13
14 enum {
15 MTK_AFE_ADDA_DL_RATE_8K = 0,
16 MTK_AFE_ADDA_DL_RATE_11K = 1,
17 MTK_AFE_ADDA_DL_RATE_12K = 2,
18 MTK_AFE_ADDA_DL_RATE_16K = 3,
19 MTK_AFE_ADDA_DL_RATE_22K = 4,
20 MTK_AFE_ADDA_DL_RATE_24K = 5,
21 MTK_AFE_ADDA_DL_RATE_32K = 6,
22 MTK_AFE_ADDA_DL_RATE_44K = 7,
23 MTK_AFE_ADDA_DL_RATE_48K = 8,
24 MTK_AFE_ADDA_DL_RATE_96K = 9,
25 MTK_AFE_ADDA_DL_RATE_192K = 10,
26 };
27
28 enum {
29 MTK_AFE_ADDA_UL_RATE_8K = 0,
30 MTK_AFE_ADDA_UL_RATE_16K = 1,
31 MTK_AFE_ADDA_UL_RATE_32K = 2,
32 MTK_AFE_ADDA_UL_RATE_48K = 3,
33 MTK_AFE_ADDA_UL_RATE_96K = 4,
34 MTK_AFE_ADDA_UL_RATE_192K = 5,
35 MTK_AFE_ADDA_UL_RATE_48K_HD = 6,
36 };
37
adda_dl_rate_transform(struct mtk_base_afe * afe,unsigned int rate)38 static unsigned int adda_dl_rate_transform(struct mtk_base_afe *afe,
39 unsigned int rate)
40 {
41 switch (rate) {
42 case 8000:
43 return MTK_AFE_ADDA_DL_RATE_8K;
44 case 11025:
45 return MTK_AFE_ADDA_DL_RATE_11K;
46 case 12000:
47 return MTK_AFE_ADDA_DL_RATE_12K;
48 case 16000:
49 return MTK_AFE_ADDA_DL_RATE_16K;
50 case 22050:
51 return MTK_AFE_ADDA_DL_RATE_22K;
52 case 24000:
53 return MTK_AFE_ADDA_DL_RATE_24K;
54 case 32000:
55 return MTK_AFE_ADDA_DL_RATE_32K;
56 case 44100:
57 return MTK_AFE_ADDA_DL_RATE_44K;
58 case 48000:
59 return MTK_AFE_ADDA_DL_RATE_48K;
60 case 96000:
61 return MTK_AFE_ADDA_DL_RATE_96K;
62 case 192000:
63 return MTK_AFE_ADDA_DL_RATE_192K;
64 default:
65 dev_warn(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
66 __func__, rate);
67 return MTK_AFE_ADDA_DL_RATE_48K;
68 }
69 }
70
adda_ul_rate_transform(struct mtk_base_afe * afe,unsigned int rate)71 static unsigned int adda_ul_rate_transform(struct mtk_base_afe *afe,
72 unsigned int rate)
73 {
74 switch (rate) {
75 case 8000:
76 return MTK_AFE_ADDA_UL_RATE_8K;
77 case 16000:
78 return MTK_AFE_ADDA_UL_RATE_16K;
79 case 32000:
80 return MTK_AFE_ADDA_UL_RATE_32K;
81 case 48000:
82 return MTK_AFE_ADDA_UL_RATE_48K;
83 case 96000:
84 return MTK_AFE_ADDA_UL_RATE_96K;
85 case 192000:
86 return MTK_AFE_ADDA_UL_RATE_192K;
87 default:
88 dev_warn(afe->dev, "%s(), rate %d invalid, use 48kHz!!!\n",
89 __func__, rate);
90 return MTK_AFE_ADDA_UL_RATE_48K;
91 }
92 }
93
94 /* dai component */
95 static const struct snd_kcontrol_new mtk_adda_dl_ch1_mix[] = {
96 SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN3, I_DL1_CH1, 1, 0),
97 SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN3, I_DL2_CH1, 1, 0),
98 SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN3, I_DL3_CH1, 1, 0),
99 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN3,
100 I_ADDA_UL_CH2, 1, 0),
101 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN3,
102 I_ADDA_UL_CH1, 1, 0),
103 SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH1", AFE_CONN3,
104 I_PCM_1_CAP_CH1, 1, 0),
105 SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH1", AFE_CONN3,
106 I_PCM_2_CAP_CH1, 1, 0),
107 };
108
109 static const struct snd_kcontrol_new mtk_adda_dl_ch2_mix[] = {
110 SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN4, I_DL1_CH1, 1, 0),
111 SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH2", AFE_CONN4, I_DL1_CH2, 1, 0),
112 SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN4, I_DL2_CH1, 1, 0),
113 SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN4, I_DL2_CH2, 1, 0),
114 SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN4, I_DL3_CH1, 1, 0),
115 SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH2", AFE_CONN4, I_DL3_CH2, 1, 0),
116 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN4,
117 I_ADDA_UL_CH2, 1, 0),
118 SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN4,
119 I_ADDA_UL_CH1, 1, 0),
120 SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH1", AFE_CONN4,
121 I_PCM_1_CAP_CH1, 1, 0),
122 SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH1", AFE_CONN4,
123 I_PCM_2_CAP_CH1, 1, 0),
124 SOC_DAPM_SINGLE_AUTODISABLE("PCM_1_CAP_CH2", AFE_CONN4,
125 I_PCM_1_CAP_CH2, 1, 0),
126 SOC_DAPM_SINGLE_AUTODISABLE("PCM_2_CAP_CH2", AFE_CONN4,
127 I_PCM_2_CAP_CH2, 1, 0),
128 };
129
mtk_adda_ul_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)130 static int mtk_adda_ul_event(struct snd_soc_dapm_widget *w,
131 struct snd_kcontrol *kcontrol,
132 int event)
133 {
134 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
135 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
136
137 dev_dbg(afe->dev, "%s(), name %s, event 0x%x\n",
138 __func__, w->name, event);
139
140 switch (event) {
141 case SND_SOC_DAPM_POST_PMD:
142 /* should delayed 1/fs(smallest is 8k) = 125us before afe off */
143 usleep_range(125, 135);
144 break;
145 default:
146 break;
147 }
148
149 return 0;
150 }
151
152 enum {
153 SUPPLY_SEQ_AUD_TOP_PDN,
154 SUPPLY_SEQ_ADDA_AFE_ON,
155 SUPPLY_SEQ_ADDA_DL_ON,
156 SUPPLY_SEQ_ADDA_UL_ON,
157 };
158
159 static const struct snd_soc_dapm_widget mtk_dai_adda_widgets[] = {
160 /* adda */
161 SND_SOC_DAPM_MIXER("ADDA_DL_CH1", SND_SOC_NOPM, 0, 0,
162 mtk_adda_dl_ch1_mix,
163 ARRAY_SIZE(mtk_adda_dl_ch1_mix)),
164 SND_SOC_DAPM_MIXER("ADDA_DL_CH2", SND_SOC_NOPM, 0, 0,
165 mtk_adda_dl_ch2_mix,
166 ARRAY_SIZE(mtk_adda_dl_ch2_mix)),
167
168 SND_SOC_DAPM_SUPPLY_S("ADDA Enable", SUPPLY_SEQ_ADDA_AFE_ON,
169 AFE_ADDA_UL_DL_CON0, ADDA_AFE_ON_SFT, 0,
170 NULL, 0),
171
172 SND_SOC_DAPM_SUPPLY_S("ADDA Playback Enable", SUPPLY_SEQ_ADDA_DL_ON,
173 AFE_ADDA_DL_SRC2_CON0,
174 DL_2_SRC_ON_TMP_CTL_PRE_SFT, 0,
175 NULL, 0),
176
177 SND_SOC_DAPM_SUPPLY_S("ADDA Capture Enable", SUPPLY_SEQ_ADDA_UL_ON,
178 AFE_ADDA_UL_SRC_CON0,
179 UL_SRC_ON_TMP_CTL_SFT, 0,
180 mtk_adda_ul_event,
181 SND_SOC_DAPM_POST_PMD),
182
183 SND_SOC_DAPM_SUPPLY_S("aud_dac_clk", SUPPLY_SEQ_AUD_TOP_PDN,
184 AUDIO_TOP_CON0, PDN_DAC_SFT, 1,
185 NULL, 0),
186 SND_SOC_DAPM_SUPPLY_S("aud_dac_predis_clk", SUPPLY_SEQ_AUD_TOP_PDN,
187 AUDIO_TOP_CON0, PDN_DAC_PREDIS_SFT, 1,
188 NULL, 0),
189
190 SND_SOC_DAPM_SUPPLY_S("aud_adc_clk", SUPPLY_SEQ_AUD_TOP_PDN,
191 AUDIO_TOP_CON0, PDN_ADC_SFT, 1,
192 NULL, 0),
193
194 SND_SOC_DAPM_CLOCK_SUPPLY("mtkaif_26m_clk"),
195 };
196
197 static const struct snd_soc_dapm_route mtk_dai_adda_routes[] = {
198 /* playback */
199 {"ADDA_DL_CH1", "DL1_CH1", "DL1"},
200 {"ADDA_DL_CH2", "DL1_CH1", "DL1"},
201 {"ADDA_DL_CH2", "DL1_CH2", "DL1"},
202
203 {"ADDA_DL_CH1", "DL2_CH1", "DL2"},
204 {"ADDA_DL_CH2", "DL2_CH1", "DL2"},
205 {"ADDA_DL_CH2", "DL2_CH2", "DL2"},
206
207 {"ADDA_DL_CH1", "DL3_CH1", "DL3"},
208 {"ADDA_DL_CH2", "DL3_CH1", "DL3"},
209 {"ADDA_DL_CH2", "DL3_CH2", "DL3"},
210
211 {"ADDA Playback", NULL, "ADDA_DL_CH1"},
212 {"ADDA Playback", NULL, "ADDA_DL_CH2"},
213
214 /* adda enable */
215 {"ADDA Playback", NULL, "ADDA Enable"},
216 {"ADDA Playback", NULL, "ADDA Playback Enable"},
217 {"ADDA Capture", NULL, "ADDA Enable"},
218 {"ADDA Capture", NULL, "ADDA Capture Enable"},
219
220 /* clk */
221 {"ADDA Playback", NULL, "mtkaif_26m_clk"},
222 {"ADDA Playback", NULL, "aud_dac_clk"},
223 {"ADDA Playback", NULL, "aud_dac_predis_clk"},
224
225 {"ADDA Capture", NULL, "mtkaif_26m_clk"},
226 {"ADDA Capture", NULL, "aud_adc_clk"},
227 };
228
229 /* dai ops */
mtk_dai_adda_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)230 static int mtk_dai_adda_hw_params(struct snd_pcm_substream *substream,
231 struct snd_pcm_hw_params *params,
232 struct snd_soc_dai *dai)
233 {
234 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
235 unsigned int rate = params_rate(params);
236
237 dev_dbg(afe->dev, "%s(), id %d, stream %d, rate %d\n",
238 __func__, dai->id, substream->stream, rate);
239
240 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
241 unsigned int dl_src2_con0 = 0;
242 unsigned int dl_src2_con1 = 0;
243
244 /* clean predistortion */
245 regmap_write(afe->regmap, AFE_ADDA_PREDIS_CON0, 0);
246 regmap_write(afe->regmap, AFE_ADDA_PREDIS_CON1, 0);
247
248 /* set input sampling rate */
249 dl_src2_con0 = adda_dl_rate_transform(afe, rate) << 28;
250
251 /* set output mode */
252 switch (rate) {
253 case 192000:
254 dl_src2_con0 |= (0x1 << 24); /* UP_SAMPLING_RATE_X2 */
255 dl_src2_con0 |= 1 << 14;
256 break;
257 case 96000:
258 dl_src2_con0 |= (0x2 << 24); /* UP_SAMPLING_RATE_X4 */
259 dl_src2_con0 |= 1 << 14;
260 break;
261 default:
262 dl_src2_con0 |= (0x3 << 24); /* UP_SAMPLING_RATE_X8 */
263 break;
264 }
265
266 /* turn off mute function */
267 dl_src2_con0 |= (0x03 << 11);
268
269 /* set voice input data if input sample rate is 8k or 16k */
270 if (rate == 8000 || rate == 16000)
271 dl_src2_con0 |= 0x01 << 5;
272
273 if (rate < 96000) {
274 /* SA suggest apply -0.3db to audio/speech path */
275 dl_src2_con1 = 0xf74f0000;
276 } else {
277 /* SA suggest apply -0.3db to audio/speech path
278 * with DL gain set to half,
279 * 0xFFFF = 0dB -> 0x8000 = 0dB when 96k, 192k
280 */
281 dl_src2_con1 = 0x7ba70000;
282 }
283
284 /* turn on down-link gain */
285 dl_src2_con0 = dl_src2_con0 | (0x01 << 1);
286
287 regmap_write(afe->regmap, AFE_ADDA_DL_SRC2_CON0, dl_src2_con0);
288 regmap_write(afe->regmap, AFE_ADDA_DL_SRC2_CON1, dl_src2_con1);
289 } else {
290 unsigned int voice_mode = 0;
291 unsigned int ul_src_con0 = 0; /* default value */
292
293 /* Using Internal ADC */
294 regmap_update_bits(afe->regmap,
295 AFE_ADDA_TOP_CON0,
296 0x1 << 0,
297 0x0 << 0);
298
299 voice_mode = adda_ul_rate_transform(afe, rate);
300
301 ul_src_con0 |= (voice_mode << 17) & (0x7 << 17);
302
303 /* up8x txif sat on */
304 regmap_write(afe->regmap, AFE_ADDA_NEWIF_CFG0, 0x03F87201);
305
306 if (rate >= 96000) { /* hires */
307 /* use hires format [1 0 23] */
308 regmap_update_bits(afe->regmap,
309 AFE_ADDA_NEWIF_CFG0,
310 0x1 << 5,
311 0x1 << 5);
312
313 regmap_update_bits(afe->regmap,
314 AFE_ADDA_NEWIF_CFG2,
315 0xf << 28,
316 voice_mode << 28);
317 } else { /* normal 8~48k */
318 /* use fixed 260k anc path */
319 regmap_update_bits(afe->regmap,
320 AFE_ADDA_NEWIF_CFG2,
321 0xf << 28,
322 8 << 28);
323
324 /* ul_use_cic_out */
325 ul_src_con0 |= 0x1 << 20;
326 }
327
328 regmap_update_bits(afe->regmap,
329 AFE_ADDA_NEWIF_CFG2,
330 0xf << 28,
331 8 << 28);
332
333 regmap_update_bits(afe->regmap,
334 AFE_ADDA_UL_SRC_CON0,
335 0xfffffffe,
336 ul_src_con0);
337 }
338
339 return 0;
340 }
341
342 static const struct snd_soc_dai_ops mtk_dai_adda_ops = {
343 .hw_params = mtk_dai_adda_hw_params,
344 };
345
346 /* dai driver */
347 #define MTK_ADDA_PLAYBACK_RATES (SNDRV_PCM_RATE_8000_48000 |\
348 SNDRV_PCM_RATE_96000 |\
349 SNDRV_PCM_RATE_192000)
350
351 #define MTK_ADDA_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
352 SNDRV_PCM_RATE_16000 |\
353 SNDRV_PCM_RATE_32000 |\
354 SNDRV_PCM_RATE_48000 |\
355 SNDRV_PCM_RATE_96000 |\
356 SNDRV_PCM_RATE_192000)
357
358 #define MTK_ADDA_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
359 SNDRV_PCM_FMTBIT_S24_LE |\
360 SNDRV_PCM_FMTBIT_S32_LE)
361
362 static struct snd_soc_dai_driver mtk_dai_adda_driver[] = {
363 {
364 .name = "ADDA",
365 .id = MT6797_DAI_ADDA,
366 .playback = {
367 .stream_name = "ADDA Playback",
368 .channels_min = 1,
369 .channels_max = 2,
370 .rates = MTK_ADDA_PLAYBACK_RATES,
371 .formats = MTK_ADDA_FORMATS,
372 },
373 .capture = {
374 .stream_name = "ADDA Capture",
375 .channels_min = 1,
376 .channels_max = 2,
377 .rates = MTK_ADDA_CAPTURE_RATES,
378 .formats = MTK_ADDA_FORMATS,
379 },
380 .ops = &mtk_dai_adda_ops,
381 },
382 };
383
mt6797_dai_adda_register(struct mtk_base_afe * afe)384 int mt6797_dai_adda_register(struct mtk_base_afe *afe)
385 {
386 struct mtk_base_afe_dai *dai;
387
388 dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
389 if (!dai)
390 return -ENOMEM;
391
392 list_add(&dai->list, &afe->sub_dais);
393
394 dai->dai_drivers = mtk_dai_adda_driver;
395 dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_adda_driver);
396
397 dai->dapm_widgets = mtk_dai_adda_widgets;
398 dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_adda_widgets);
399 dai->dapm_routes = mtk_dai_adda_routes;
400 dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_adda_routes);
401 return 0;
402 }
403