1// SPDX-License-Identifier: GPL-2.0
2//
3// MediaTek ALSA SoC Audio DAI TDM Control
4//
5// Copyright (c) 2020 MediaTek Inc.
6// Author: Shane Chien <shane.chien@mediatek.com>
7
8#include <linux/regmap.h>
9#include <sound/pcm_params.h>
10
11#include "mt8192-afe-clk.h"
12#include "mt8192-afe-common.h"
13#include "mt8192-afe-gpio.h"
14#include "mt8192-interconnection.h"
15
16struct mtk_afe_tdm_priv {
17 int id;
18 int bck_id;
19 int bck_rate;
20 int tdm_out_mode;
21 int bck_invert;
22 int lck_invert;
23 int mclk_id;
24 int mclk_multiple; /* according to sample rate */
25 int mclk_rate;
26 int mclk_apll;
27};
28
29enum {
30 TDM_OUT_I2S = 0,
31 TDM_OUT_DSP_A = 1,
32 TDM_OUT_DSP_B = 2,
33};
34
35enum {
36 TDM_BCK_NON_INV = 0,
37 TDM_BCK_INV = 1,
38};
39
40enum {
41 TDM_LCK_NON_INV = 0,
42 TDM_LCK_INV = 1,
43};
44
45enum {
46 TDM_WLEN_16_BIT = 1,
47 TDM_WLEN_32_BIT = 2,
48};
49
50enum {
51 TDM_CHANNEL_BCK_16 = 0,
52 TDM_CHANNEL_BCK_24 = 1,
53 TDM_CHANNEL_BCK_32 = 2,
54};
55
56enum {
57 TDM_CHANNEL_NUM_2 = 0,
58 TDM_CHANNEL_NUM_4 = 1,
59 TDM_CHANNEL_NUM_8 = 2,
60};
61
62enum {
63 TDM_CH_START_O30_O31 = 0,
64 TDM_CH_START_O32_O33,
65 TDM_CH_START_O34_O35,
66 TDM_CH_START_O36_O37,
67 TDM_CH_ZERO,
68};
69
70static unsigned int get_tdm_wlen(snd_pcm_format_t format)
71{
72 return snd_pcm_format_physical_width(format) <= 16 ?
73 TDM_WLEN_16_BIT : TDM_WLEN_32_BIT;
74}
75
76static unsigned int get_tdm_channel_bck(snd_pcm_format_t format)
77{
78 return snd_pcm_format_physical_width(format) <= 16 ?
79 TDM_CHANNEL_BCK_16 : TDM_CHANNEL_BCK_32;
80}
81
82static unsigned int get_tdm_lrck_width(snd_pcm_format_t format)
83{
84 return snd_pcm_format_physical_width(format) - 1;
85}
86
87static unsigned int get_tdm_ch(unsigned int ch)
88{
89 switch (ch) {
90 case 1:
91 case 2:
92 return TDM_CHANNEL_NUM_2;
93 case 3:
94 case 4:
95 return TDM_CHANNEL_NUM_4;
96 case 5:
97 case 6:
98 case 7:
99 case 8:
100 default:
101 return TDM_CHANNEL_NUM_8;
102 }
103}
104
105static unsigned int get_tdm_ch_fixup(unsigned int channels)
106{
107 if (channels > 4)
108 return 8;
109 else if (channels > 2)
110 return 4;
111 else
112 return 2;
113}
114
115static unsigned int get_tdm_ch_per_sdata(unsigned int mode,
116 unsigned int channels)
117{
118 if (mode == TDM_OUT_DSP_A || mode == TDM_OUT_DSP_B)
119 return get_tdm_ch_fixup(channels);
120 else
121 return 2;
122}
123
124/* interconnection */
125enum {
126 HDMI_CONN_CH0 = 0,
127 HDMI_CONN_CH1,
128 HDMI_CONN_CH2,
129 HDMI_CONN_CH3,
130 HDMI_CONN_CH4,
131 HDMI_CONN_CH5,
132 HDMI_CONN_CH6,
133 HDMI_CONN_CH7,
134};
135
136static const char *const hdmi_conn_mux_map[] = {
137 "CH0", "CH1", "CH2", "CH3",
138 "CH4", "CH5", "CH6", "CH7",
139};
140
141static int hdmi_conn_mux_map_value[] = {
142 HDMI_CONN_CH0,
143 HDMI_CONN_CH1,
144 HDMI_CONN_CH2,
145 HDMI_CONN_CH3,
146 HDMI_CONN_CH4,
147 HDMI_CONN_CH5,
148 HDMI_CONN_CH6,
149 HDMI_CONN_CH7,
150};
151
152static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch0_mux_map_enum,
153 AFE_HDMI_CONN0,
154 HDMI_O_0_SFT,
155 HDMI_O_0_MASK,
156 hdmi_conn_mux_map,
157 hdmi_conn_mux_map_value);
158
159static const struct snd_kcontrol_new hdmi_ch0_mux_control =
160 SOC_DAPM_ENUM("HDMI_CH0_MUX", hdmi_ch0_mux_map_enum);
161
162static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch1_mux_map_enum,
163 AFE_HDMI_CONN0,
164 HDMI_O_1_SFT,
165 HDMI_O_1_MASK,
166 hdmi_conn_mux_map,
167 hdmi_conn_mux_map_value);
168
169static const struct snd_kcontrol_new hdmi_ch1_mux_control =
170 SOC_DAPM_ENUM("HDMI_CH1_MUX", hdmi_ch1_mux_map_enum);
171
172static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch2_mux_map_enum,
173 AFE_HDMI_CONN0,
174 HDMI_O_2_SFT,
175 HDMI_O_2_MASK,
176 hdmi_conn_mux_map,
177 hdmi_conn_mux_map_value);
178
179static const struct snd_kcontrol_new hdmi_ch2_mux_control =
180 SOC_DAPM_ENUM("HDMI_CH2_MUX", hdmi_ch2_mux_map_enum);
181
182static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch3_mux_map_enum,
183 AFE_HDMI_CONN0,
184 HDMI_O_3_SFT,
185 HDMI_O_3_MASK,
186 hdmi_conn_mux_map,
187 hdmi_conn_mux_map_value);
188
189static const struct snd_kcontrol_new hdmi_ch3_mux_control =
190 SOC_DAPM_ENUM("HDMI_CH3_MUX", hdmi_ch3_mux_map_enum);
191
192static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch4_mux_map_enum,
193 AFE_HDMI_CONN0,
194 HDMI_O_4_SFT,
195 HDMI_O_4_MASK,
196 hdmi_conn_mux_map,
197 hdmi_conn_mux_map_value);
198
199static const struct snd_kcontrol_new hdmi_ch4_mux_control =
200 SOC_DAPM_ENUM("HDMI_CH4_MUX", hdmi_ch4_mux_map_enum);
201
202static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch5_mux_map_enum,
203 AFE_HDMI_CONN0,
204 HDMI_O_5_SFT,
205 HDMI_O_5_MASK,
206 hdmi_conn_mux_map,
207 hdmi_conn_mux_map_value);
208
209static const struct snd_kcontrol_new hdmi_ch5_mux_control =
210 SOC_DAPM_ENUM("HDMI_CH5_MUX", hdmi_ch5_mux_map_enum);
211
212static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch6_mux_map_enum,
213 AFE_HDMI_CONN0,
214 HDMI_O_6_SFT,
215 HDMI_O_6_MASK,
216 hdmi_conn_mux_map,
217 hdmi_conn_mux_map_value);
218
219static const struct snd_kcontrol_new hdmi_ch6_mux_control =
220 SOC_DAPM_ENUM("HDMI_CH6_MUX", hdmi_ch6_mux_map_enum);
221
222static SOC_VALUE_ENUM_SINGLE_DECL(hdmi_ch7_mux_map_enum,
223 AFE_HDMI_CONN0,
224 HDMI_O_7_SFT,
225 HDMI_O_7_MASK,
226 hdmi_conn_mux_map,
227 hdmi_conn_mux_map_value);
228
229static const struct snd_kcontrol_new hdmi_ch7_mux_control =
230 SOC_DAPM_ENUM("HDMI_CH7_MUX", hdmi_ch7_mux_map_enum);
231
232enum {
233 SUPPLY_SEQ_APLL,
234 SUPPLY_SEQ_TDM_MCK_EN,
235 SUPPLY_SEQ_TDM_BCK_EN,
236 SUPPLY_SEQ_TDM_EN,
237};
238
239static int get_tdm_id_by_name(const char *name)
240{
241 return MT8192_DAI_TDM;
242}
243
244static int mtk_tdm_en_event(struct snd_soc_dapm_widget *w,
245 struct snd_kcontrol *kcontrol,
246 int event)
247{
248 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(dapm: w->dapm);
249 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(c: cmpnt);
250 struct mt8192_afe_private *afe_priv = afe->platform_priv;
251 int dai_id = get_tdm_id_by_name(name: w->name);
252 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
253
254 if (!tdm_priv) {
255 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
256 return -EINVAL;
257 }
258
259 dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x\n",
260 __func__, w->name, event);
261
262 switch (event) {
263 case SND_SOC_DAPM_PRE_PMU:
264 mt8192_afe_gpio_request(dev: afe->dev, enable: true, dai: tdm_priv->id, uplink: 0);
265 break;
266 case SND_SOC_DAPM_POST_PMD:
267 mt8192_afe_gpio_request(dev: afe->dev, enable: false, dai: tdm_priv->id, uplink: 0);
268 break;
269 default:
270 break;
271 }
272
273 return 0;
274}
275
276static int mtk_tdm_bck_en_event(struct snd_soc_dapm_widget *w,
277 struct snd_kcontrol *kcontrol,
278 int event)
279{
280 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(dapm: w->dapm);
281 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(c: cmpnt);
282 struct mt8192_afe_private *afe_priv = afe->platform_priv;
283 int dai_id = get_tdm_id_by_name(name: w->name);
284 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
285
286 if (!tdm_priv) {
287 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
288 return -EINVAL;
289 }
290
291 dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x, dai_id %d\n",
292 __func__, w->name, event, dai_id);
293
294 switch (event) {
295 case SND_SOC_DAPM_PRE_PMU:
296 mt8192_mck_enable(afe, mck_id: tdm_priv->bck_id, rate: tdm_priv->bck_rate);
297 break;
298 case SND_SOC_DAPM_POST_PMD:
299 mt8192_mck_disable(afe, mck_id: tdm_priv->bck_id);
300 break;
301 default:
302 break;
303 }
304
305 return 0;
306}
307
308static int mtk_tdm_mck_en_event(struct snd_soc_dapm_widget *w,
309 struct snd_kcontrol *kcontrol,
310 int event)
311{
312 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(dapm: w->dapm);
313 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(c: cmpnt);
314 struct mt8192_afe_private *afe_priv = afe->platform_priv;
315 int dai_id = get_tdm_id_by_name(name: w->name);
316 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
317
318 if (!tdm_priv) {
319 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
320 return -EINVAL;
321 }
322
323 dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x, dai_id %d\n",
324 __func__, w->name, event, dai_id);
325
326 switch (event) {
327 case SND_SOC_DAPM_PRE_PMU:
328 mt8192_mck_enable(afe, mck_id: tdm_priv->mclk_id, rate: tdm_priv->mclk_rate);
329 break;
330 case SND_SOC_DAPM_POST_PMD:
331 tdm_priv->mclk_rate = 0;
332 mt8192_mck_disable(afe, mck_id: tdm_priv->mclk_id);
333 break;
334 default:
335 break;
336 }
337
338 return 0;
339}
340
341static const struct snd_soc_dapm_widget mtk_dai_tdm_widgets[] = {
342 SND_SOC_DAPM_MUX("HDMI_CH0_MUX", SND_SOC_NOPM, 0, 0,
343 &hdmi_ch0_mux_control),
344 SND_SOC_DAPM_MUX("HDMI_CH1_MUX", SND_SOC_NOPM, 0, 0,
345 &hdmi_ch1_mux_control),
346 SND_SOC_DAPM_MUX("HDMI_CH2_MUX", SND_SOC_NOPM, 0, 0,
347 &hdmi_ch2_mux_control),
348 SND_SOC_DAPM_MUX("HDMI_CH3_MUX", SND_SOC_NOPM, 0, 0,
349 &hdmi_ch3_mux_control),
350 SND_SOC_DAPM_MUX("HDMI_CH4_MUX", SND_SOC_NOPM, 0, 0,
351 &hdmi_ch4_mux_control),
352 SND_SOC_DAPM_MUX("HDMI_CH5_MUX", SND_SOC_NOPM, 0, 0,
353 &hdmi_ch5_mux_control),
354 SND_SOC_DAPM_MUX("HDMI_CH6_MUX", SND_SOC_NOPM, 0, 0,
355 &hdmi_ch6_mux_control),
356 SND_SOC_DAPM_MUX("HDMI_CH7_MUX", SND_SOC_NOPM, 0, 0,
357 &hdmi_ch7_mux_control),
358
359 SND_SOC_DAPM_CLOCK_SUPPLY("aud_tdm_clk"),
360
361 SND_SOC_DAPM_SUPPLY_S("TDM_EN", SUPPLY_SEQ_TDM_EN,
362 AFE_TDM_CON1, TDM_EN_SFT, 0,
363 mtk_tdm_en_event,
364 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
365
366 SND_SOC_DAPM_SUPPLY_S("TDM_BCK", SUPPLY_SEQ_TDM_BCK_EN,
367 SND_SOC_NOPM, 0, 0,
368 mtk_tdm_bck_en_event,
369 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
370
371 SND_SOC_DAPM_SUPPLY_S("TDM_MCK", SUPPLY_SEQ_TDM_MCK_EN,
372 SND_SOC_NOPM, 0, 0,
373 mtk_tdm_mck_en_event,
374 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
375};
376
377static int mtk_afe_tdm_apll_connect(struct snd_soc_dapm_widget *source,
378 struct snd_soc_dapm_widget *sink)
379{
380 struct snd_soc_dapm_widget *w = sink;
381 struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(dapm: w->dapm);
382 struct mtk_base_afe *afe = snd_soc_component_get_drvdata(c: cmpnt);
383 struct mt8192_afe_private *afe_priv = afe->platform_priv;
384 int dai_id = get_tdm_id_by_name(name: w->name);
385 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
386 int cur_apll;
387
388 /* which apll */
389 cur_apll = mt8192_get_apll_by_name(afe, name: source->name);
390
391 return (tdm_priv->mclk_apll == cur_apll) ? 1 : 0;
392}
393
394static const struct snd_soc_dapm_route mtk_dai_tdm_routes[] = {
395 {"HDMI_CH0_MUX", "CH0", "HDMI"},
396 {"HDMI_CH0_MUX", "CH1", "HDMI"},
397 {"HDMI_CH0_MUX", "CH2", "HDMI"},
398 {"HDMI_CH0_MUX", "CH3", "HDMI"},
399 {"HDMI_CH0_MUX", "CH4", "HDMI"},
400 {"HDMI_CH0_MUX", "CH5", "HDMI"},
401 {"HDMI_CH0_MUX", "CH6", "HDMI"},
402 {"HDMI_CH0_MUX", "CH7", "HDMI"},
403
404 {"HDMI_CH1_MUX", "CH0", "HDMI"},
405 {"HDMI_CH1_MUX", "CH1", "HDMI"},
406 {"HDMI_CH1_MUX", "CH2", "HDMI"},
407 {"HDMI_CH1_MUX", "CH3", "HDMI"},
408 {"HDMI_CH1_MUX", "CH4", "HDMI"},
409 {"HDMI_CH1_MUX", "CH5", "HDMI"},
410 {"HDMI_CH1_MUX", "CH6", "HDMI"},
411 {"HDMI_CH1_MUX", "CH7", "HDMI"},
412
413 {"HDMI_CH2_MUX", "CH0", "HDMI"},
414 {"HDMI_CH2_MUX", "CH1", "HDMI"},
415 {"HDMI_CH2_MUX", "CH2", "HDMI"},
416 {"HDMI_CH2_MUX", "CH3", "HDMI"},
417 {"HDMI_CH2_MUX", "CH4", "HDMI"},
418 {"HDMI_CH2_MUX", "CH5", "HDMI"},
419 {"HDMI_CH2_MUX", "CH6", "HDMI"},
420 {"HDMI_CH2_MUX", "CH7", "HDMI"},
421
422 {"HDMI_CH3_MUX", "CH0", "HDMI"},
423 {"HDMI_CH3_MUX", "CH1", "HDMI"},
424 {"HDMI_CH3_MUX", "CH2", "HDMI"},
425 {"HDMI_CH3_MUX", "CH3", "HDMI"},
426 {"HDMI_CH3_MUX", "CH4", "HDMI"},
427 {"HDMI_CH3_MUX", "CH5", "HDMI"},
428 {"HDMI_CH3_MUX", "CH6", "HDMI"},
429 {"HDMI_CH3_MUX", "CH7", "HDMI"},
430
431 {"HDMI_CH4_MUX", "CH0", "HDMI"},
432 {"HDMI_CH4_MUX", "CH1", "HDMI"},
433 {"HDMI_CH4_MUX", "CH2", "HDMI"},
434 {"HDMI_CH4_MUX", "CH3", "HDMI"},
435 {"HDMI_CH4_MUX", "CH4", "HDMI"},
436 {"HDMI_CH4_MUX", "CH5", "HDMI"},
437 {"HDMI_CH4_MUX", "CH6", "HDMI"},
438 {"HDMI_CH4_MUX", "CH7", "HDMI"},
439
440 {"HDMI_CH5_MUX", "CH0", "HDMI"},
441 {"HDMI_CH5_MUX", "CH1", "HDMI"},
442 {"HDMI_CH5_MUX", "CH2", "HDMI"},
443 {"HDMI_CH5_MUX", "CH3", "HDMI"},
444 {"HDMI_CH5_MUX", "CH4", "HDMI"},
445 {"HDMI_CH5_MUX", "CH5", "HDMI"},
446 {"HDMI_CH5_MUX", "CH6", "HDMI"},
447 {"HDMI_CH5_MUX", "CH7", "HDMI"},
448
449 {"HDMI_CH6_MUX", "CH0", "HDMI"},
450 {"HDMI_CH6_MUX", "CH1", "HDMI"},
451 {"HDMI_CH6_MUX", "CH2", "HDMI"},
452 {"HDMI_CH6_MUX", "CH3", "HDMI"},
453 {"HDMI_CH6_MUX", "CH4", "HDMI"},
454 {"HDMI_CH6_MUX", "CH5", "HDMI"},
455 {"HDMI_CH6_MUX", "CH6", "HDMI"},
456 {"HDMI_CH6_MUX", "CH7", "HDMI"},
457
458 {"HDMI_CH7_MUX", "CH0", "HDMI"},
459 {"HDMI_CH7_MUX", "CH1", "HDMI"},
460 {"HDMI_CH7_MUX", "CH2", "HDMI"},
461 {"HDMI_CH7_MUX", "CH3", "HDMI"},
462 {"HDMI_CH7_MUX", "CH4", "HDMI"},
463 {"HDMI_CH7_MUX", "CH5", "HDMI"},
464 {"HDMI_CH7_MUX", "CH6", "HDMI"},
465 {"HDMI_CH7_MUX", "CH7", "HDMI"},
466
467 {"TDM", NULL, "HDMI_CH0_MUX"},
468 {"TDM", NULL, "HDMI_CH1_MUX"},
469 {"TDM", NULL, "HDMI_CH2_MUX"},
470 {"TDM", NULL, "HDMI_CH3_MUX"},
471 {"TDM", NULL, "HDMI_CH4_MUX"},
472 {"TDM", NULL, "HDMI_CH5_MUX"},
473 {"TDM", NULL, "HDMI_CH6_MUX"},
474 {"TDM", NULL, "HDMI_CH7_MUX"},
475
476 {"TDM", NULL, "aud_tdm_clk"},
477 {"TDM", NULL, "TDM_BCK"},
478 {"TDM", NULL, "TDM_EN"},
479 {"TDM_BCK", NULL, "TDM_MCK"},
480 {"TDM_MCK", NULL, APLL1_W_NAME, mtk_afe_tdm_apll_connect},
481 {"TDM_MCK", NULL, APLL2_W_NAME, mtk_afe_tdm_apll_connect},
482};
483
484/* dai ops */
485static int mtk_dai_tdm_cal_mclk(struct mtk_base_afe *afe,
486 struct mtk_afe_tdm_priv *tdm_priv,
487 int freq)
488{
489 int apll;
490 int apll_rate;
491
492 apll = mt8192_get_apll_by_rate(afe, rate: freq);
493 apll_rate = mt8192_get_apll_rate(afe, apll);
494
495 if (!freq || freq > apll_rate) {
496 dev_warn(afe->dev,
497 "%s(), freq(%d Hz) invalid\n", __func__, freq);
498 return -EINVAL;
499 }
500
501 if (apll_rate % freq != 0) {
502 dev_warn(afe->dev,
503 "%s(), APLL cannot generate %d Hz", __func__, freq);
504 return -EINVAL;
505 }
506
507 tdm_priv->mclk_rate = freq;
508 tdm_priv->mclk_apll = apll;
509
510 return 0;
511}
512
513static int mtk_dai_tdm_hw_params(struct snd_pcm_substream *substream,
514 struct snd_pcm_hw_params *params,
515 struct snd_soc_dai *dai)
516{
517 struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
518 struct mt8192_afe_private *afe_priv = afe->platform_priv;
519 int tdm_id = dai->id;
520 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[tdm_id];
521 unsigned int tdm_out_mode = tdm_priv->tdm_out_mode;
522 unsigned int rate = params_rate(p: params);
523 unsigned int channels = params_channels(p: params);
524 unsigned int out_channels_per_sdata =
525 get_tdm_ch_per_sdata(mode: tdm_out_mode, channels);
526 snd_pcm_format_t format = params_format(p: params);
527 unsigned int tdm_con = 0;
528
529 /* calculate mclk_rate, if not set explicitly */
530 if (!tdm_priv->mclk_rate) {
531 tdm_priv->mclk_rate = rate * tdm_priv->mclk_multiple;
532 mtk_dai_tdm_cal_mclk(afe,
533 tdm_priv,
534 freq: tdm_priv->mclk_rate);
535 }
536
537 /* calculate bck */
538 tdm_priv->bck_rate = rate *
539 out_channels_per_sdata *
540 snd_pcm_format_physical_width(format);
541
542 if (tdm_priv->bck_rate > tdm_priv->mclk_rate)
543 dev_warn(afe->dev, "%s(), bck_rate > mclk_rate rate", __func__);
544
545 if (tdm_priv->mclk_rate % tdm_priv->bck_rate != 0)
546 dev_warn(afe->dev, "%s(), bck cannot generate", __func__);
547
548 dev_dbg(afe->dev, "%s(), id %d, rate %d, channels %d, format %d, mclk_rate %d, bck_rate %d\n",
549 __func__,
550 tdm_id, rate, channels, format,
551 tdm_priv->mclk_rate, tdm_priv->bck_rate);
552
553 dev_dbg(afe->dev, "%s(), out_channels_per_sdata = %d\n",
554 __func__, out_channels_per_sdata);
555
556 /* set tdm */
557 if (tdm_priv->bck_invert)
558 regmap_update_bits(map: afe->regmap, AUDIO_TOP_CON3,
559 BCK_INVERSE_MASK_SFT,
560 val: 0x1 << BCK_INVERSE_SFT);
561
562 if (tdm_priv->lck_invert)
563 tdm_con |= 1 << LRCK_INVERSE_SFT;
564
565 if (tdm_priv->tdm_out_mode == TDM_OUT_I2S) {
566 tdm_con |= 1 << DELAY_DATA_SFT;
567 tdm_con |= get_tdm_lrck_width(format) << LRCK_TDM_WIDTH_SFT;
568 } else if (tdm_priv->tdm_out_mode == TDM_OUT_DSP_A) {
569 tdm_con |= 1 << DELAY_DATA_SFT;
570 tdm_con |= 0 << LRCK_TDM_WIDTH_SFT;
571 } else if (tdm_priv->tdm_out_mode == TDM_OUT_DSP_B) {
572 tdm_con |= 0 << DELAY_DATA_SFT;
573 tdm_con |= 0 << LRCK_TDM_WIDTH_SFT;
574 }
575
576 tdm_con |= 1 << LEFT_ALIGN_SFT;
577 tdm_con |= get_tdm_wlen(format) << WLEN_SFT;
578 tdm_con |= get_tdm_ch(ch: out_channels_per_sdata) << CHANNEL_NUM_SFT;
579 tdm_con |= get_tdm_channel_bck(format) << CHANNEL_BCK_CYCLES_SFT;
580 regmap_write(map: afe->regmap, AFE_TDM_CON1, val: tdm_con);
581
582 if (out_channels_per_sdata == 2) {
583 switch (channels) {
584 case 1:
585 case 2:
586 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
587 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT;
588 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
589 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
590 break;
591 case 3:
592 case 4:
593 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
594 tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
595 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
596 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
597 break;
598 case 5:
599 case 6:
600 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
601 tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
602 tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
603 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
604 break;
605 case 7:
606 case 8:
607 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
608 tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
609 tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
610 tdm_con |= TDM_CH_START_O36_O37 << ST_CH_PAIR_SOUT3_SFT;
611 break;
612 default:
613 tdm_con = 0;
614 }
615 } else {
616 tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
617 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT;
618 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
619 tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
620 }
621
622 regmap_write(map: afe->regmap, AFE_TDM_CON2, val: tdm_con);
623
624 regmap_update_bits(map: afe->regmap, AFE_HDMI_OUT_CON0,
625 HDMI_CH_NUM_MASK_SFT,
626 val: channels << HDMI_CH_NUM_SFT);
627 return 0;
628}
629
630static int mtk_dai_tdm_set_sysclk(struct snd_soc_dai *dai,
631 int clk_id, unsigned int freq, int dir)
632{
633 struct mtk_base_afe *afe = dev_get_drvdata(dev: dai->dev);
634 struct mt8192_afe_private *afe_priv = afe->platform_priv;
635 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id];
636
637 if (!tdm_priv) {
638 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
639 return -EINVAL;
640 }
641
642 if (dir != SND_SOC_CLOCK_OUT) {
643 dev_warn(afe->dev, "%s(), dir != SND_SOC_CLOCK_OUT", __func__);
644 return -EINVAL;
645 }
646
647 dev_dbg(afe->dev, "%s(), freq %d\n", __func__, freq);
648
649 return mtk_dai_tdm_cal_mclk(afe, tdm_priv, freq);
650}
651
652static int mtk_dai_tdm_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
653{
654 struct mtk_base_afe *afe = dev_get_drvdata(dev: dai->dev);
655 struct mt8192_afe_private *afe_priv = afe->platform_priv;
656 struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id];
657
658 if (!tdm_priv) {
659 dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
660 return -EINVAL;
661 }
662
663 /* DAI mode*/
664 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
665 case SND_SOC_DAIFMT_I2S:
666 tdm_priv->tdm_out_mode = TDM_OUT_I2S;
667 break;
668 case SND_SOC_DAIFMT_DSP_A:
669 tdm_priv->tdm_out_mode = TDM_OUT_DSP_A;
670 break;
671 case SND_SOC_DAIFMT_DSP_B:
672 tdm_priv->tdm_out_mode = TDM_OUT_DSP_B;
673 break;
674 default:
675 tdm_priv->tdm_out_mode = TDM_OUT_I2S;
676 }
677
678 /* DAI clock inversion*/
679 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
680 case SND_SOC_DAIFMT_NB_NF:
681 tdm_priv->bck_invert = TDM_BCK_NON_INV;
682 tdm_priv->lck_invert = TDM_LCK_NON_INV;
683 break;
684 case SND_SOC_DAIFMT_NB_IF:
685 tdm_priv->bck_invert = TDM_BCK_NON_INV;
686 tdm_priv->lck_invert = TDM_LCK_INV;
687 break;
688 case SND_SOC_DAIFMT_IB_NF:
689 tdm_priv->bck_invert = TDM_BCK_INV;
690 tdm_priv->lck_invert = TDM_LCK_NON_INV;
691 break;
692 case SND_SOC_DAIFMT_IB_IF:
693 default:
694 tdm_priv->bck_invert = TDM_BCK_INV;
695 tdm_priv->lck_invert = TDM_LCK_INV;
696 break;
697 }
698
699 return 0;
700}
701
702static const struct snd_soc_dai_ops mtk_dai_tdm_ops = {
703 .hw_params = mtk_dai_tdm_hw_params,
704 .set_sysclk = mtk_dai_tdm_set_sysclk,
705 .set_fmt = mtk_dai_tdm_set_fmt,
706};
707
708/* dai driver */
709#define MTK_TDM_RATES (SNDRV_PCM_RATE_8000_48000 |\
710 SNDRV_PCM_RATE_88200 |\
711 SNDRV_PCM_RATE_96000 |\
712 SNDRV_PCM_RATE_176400 |\
713 SNDRV_PCM_RATE_192000)
714
715#define MTK_TDM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
716 SNDRV_PCM_FMTBIT_S24_LE |\
717 SNDRV_PCM_FMTBIT_S32_LE)
718
719static struct snd_soc_dai_driver mtk_dai_tdm_driver[] = {
720 {
721 .name = "TDM",
722 .id = MT8192_DAI_TDM,
723 .playback = {
724 .stream_name = "TDM",
725 .channels_min = 2,
726 .channels_max = 8,
727 .rates = MTK_TDM_RATES,
728 .formats = MTK_TDM_FORMATS,
729 },
730 .ops = &mtk_dai_tdm_ops,
731 },
732};
733
734static struct mtk_afe_tdm_priv *init_tdm_priv_data(struct mtk_base_afe *afe)
735{
736 struct mtk_afe_tdm_priv *tdm_priv;
737
738 tdm_priv = devm_kzalloc(dev: afe->dev, size: sizeof(struct mtk_afe_tdm_priv),
739 GFP_KERNEL);
740 if (!tdm_priv)
741 return NULL;
742
743 tdm_priv->mclk_multiple = 512;
744 tdm_priv->bck_id = MT8192_I2S4_BCK;
745 tdm_priv->mclk_id = MT8192_I2S4_MCK;
746 tdm_priv->id = MT8192_DAI_TDM;
747
748 return tdm_priv;
749}
750
751int mt8192_dai_tdm_register(struct mtk_base_afe *afe)
752{
753 struct mt8192_afe_private *afe_priv = afe->platform_priv;
754 struct mtk_afe_tdm_priv *tdm_priv;
755 struct mtk_base_afe_dai *dai;
756
757 dai = devm_kzalloc(dev: afe->dev, size: sizeof(*dai), GFP_KERNEL);
758 if (!dai)
759 return -ENOMEM;
760
761 list_add(new: &dai->list, head: &afe->sub_dais);
762
763 dai->dai_drivers = mtk_dai_tdm_driver;
764 dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_tdm_driver);
765
766 dai->dapm_widgets = mtk_dai_tdm_widgets;
767 dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_tdm_widgets);
768 dai->dapm_routes = mtk_dai_tdm_routes;
769 dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_tdm_routes);
770
771 tdm_priv = init_tdm_priv_data(afe);
772 if (!tdm_priv)
773 return -ENOMEM;
774
775 afe_priv->dai_priv[MT8192_DAI_TDM] = tdm_priv;
776
777 return 0;
778}
779

source code of linux/sound/soc/mediatek/mt8192/mt8192-dai-tdm.c