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
14enum AUD_TX_LCH_RPT {
15	AUD_TX_LCH_RPT_NO_REPEAT = 0,
16	AUD_TX_LCH_RPT_REPEAT = 1
17};
18
19enum AUD_VBT_16K_MODE {
20	AUD_VBT_16K_MODE_DISABLE = 0,
21	AUD_VBT_16K_MODE_ENABLE = 1
22};
23
24enum AUD_EXT_MODEM {
25	AUD_EXT_MODEM_SELECT_INTERNAL = 0,
26	AUD_EXT_MODEM_SELECT_EXTERNAL = 1
27};
28
29enum 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
36enum AUD_BT_MODE {
37	AUD_BT_MODE_DUAL_MIC_ON_TX = 0,
38	AUD_BT_MODE_SINGLE_MIC_ON_TX = 1
39};
40
41enum 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
48enum AUD_PCM_CLOCK_SOURCE {
49	AUD_PCM_CLOCK_MASTER_MODE = 0,
50	AUD_PCM_CLOCK_SLAVE_MODE = 1
51};
52
53enum AUD_PCM_WLEN {
54	AUD_PCM_WLEN_PCM_32_BCK_CYCLES = 0,
55	AUD_PCM_WLEN_PCM_64_BCK_CYCLES = 1
56};
57
58enum 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
65enum 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
72enum AUD_BCLK_OUT_INV {
73	AUD_BCLK_OUT_INV_NO_INVERSE = 0,
74	AUD_BCLK_OUT_INV_INVERSE = 1
75};
76
77enum AUD_PCM_EN {
78	AUD_PCM_EN_DISABLE = 0,
79	AUD_PCM_EN_ENABLE = 1
80};
81
82/* dai component */
83static 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
90static 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
97static 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
102static 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
109static 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
116static 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
121static 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
154static 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 */
181static 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
240static 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
254static 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
299int 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