1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * cht-bsw-nau8824.c - ASoc Machine driver for Intel Cherryview-based
4 * platforms Cherrytrail and Braswell, with nau8824 codec.
5 *
6 * Copyright (C) 2018 Intel Corp
7 * Copyright (C) 2018 Nuvoton Technology Corp
8 *
9 * Author: Wang, Joseph C <joequant@gmail.com>
10 * Co-author: John Hsu <KCHSU0@nuvoton.com>
11 * This file is based on cht_bsw_rt5672.c and cht-bsw-max98090.c
12 */
13
14 #include <linux/module.h>
15 #include <linux/platform_device.h>
16 #include <linux/slab.h>
17 #include <sound/pcm.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
20 #include <sound/soc-acpi.h>
21 #include <sound/jack.h>
22 #include <linux/input.h>
23 #include "../atom/sst-atom-controls.h"
24 #include "../../codecs/nau8824.h"
25
26 struct cht_mc_private {
27 struct snd_soc_jack jack;
28 };
29
30 static struct snd_soc_jack_pin cht_bsw_jack_pins[] = {
31 {
32 .pin = "Headphone",
33 .mask = SND_JACK_HEADPHONE,
34 },
35 {
36 .pin = "Headset Mic",
37 .mask = SND_JACK_MICROPHONE,
38 },
39 };
40
41 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
42 SND_SOC_DAPM_HP("Headphone", NULL),
43 SND_SOC_DAPM_MIC("Headset Mic", NULL),
44 SND_SOC_DAPM_MIC("Int Mic", NULL),
45 SND_SOC_DAPM_SPK("Ext Spk", NULL),
46 };
47
48 static const struct snd_soc_dapm_route cht_audio_map[] = {
49 {"Ext Spk", NULL, "SPKOUTL"},
50 {"Ext Spk", NULL, "SPKOUTR"},
51 {"Headphone", NULL, "HPOL"},
52 {"Headphone", NULL, "HPOR"},
53 {"MIC1", NULL, "Int Mic"},
54 {"MIC2", NULL, "Int Mic"},
55 {"HSMIC1", NULL, "Headset Mic"},
56 {"HSMIC2", NULL, "Headset Mic"},
57 {"Playback", NULL, "ssp2 Tx"},
58 {"ssp2 Tx", NULL, "codec_out0"},
59 {"ssp2 Tx", NULL, "codec_out1"},
60 {"codec_in0", NULL, "ssp2 Rx" },
61 {"codec_in1", NULL, "ssp2 Rx" },
62 {"ssp2 Rx", NULL, "Capture"},
63 };
64
65 static const struct snd_kcontrol_new cht_mc_controls[] = {
66 SOC_DAPM_PIN_SWITCH("Headphone"),
67 SOC_DAPM_PIN_SWITCH("Headset Mic"),
68 SOC_DAPM_PIN_SWITCH("Int Mic"),
69 SOC_DAPM_PIN_SWITCH("Ext Spk"),
70 };
71
72 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
73 struct snd_pcm_hw_params *params)
74 {
75 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
76 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
77 int ret;
78
79 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8824_CLK_FLL_FS, 0,
80 SND_SOC_CLOCK_IN);
81 if (ret < 0) {
82 dev_err(codec_dai->dev, "can't set FS clock %d\n", ret);
83 return ret;
84 }
85 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, params_rate(params),
86 params_rate(params) * 256);
87 if (ret < 0) {
88 dev_err(codec_dai->dev, "can't set FLL: %d\n", ret);
89 return ret;
90 }
91
92 return 0;
93 }
94
95 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
96 {
97 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
98 struct snd_soc_jack *jack = &ctx->jack;
99 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
100 struct snd_soc_component *component = codec_dai->component;
101 int ret, jack_type;
102
103 /* NAU88L24 supports 4 buttons headset detection
104 * KEY_PLAYPAUSE
105 * KEY_VOICECOMMAND
106 * KEY_VOLUMEUP
107 * KEY_VOLUMEDOWN
108 */
109 jack_type = SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
110 SND_JACK_BTN_2 | SND_JACK_BTN_3;
111 ret = snd_soc_card_jack_new_pins(runtime->card, "Headset", jack_type,
112 jack, cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins));
113 if (ret) {
114 dev_err(runtime->dev,
115 "Headset Jack creation failed %d\n", ret);
116 return ret;
117 }
118 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
119 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
120 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
121 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
122
123 nau8824_enable_jack_detect(component, jack);
124
125 return ret;
126 }
127
128 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
129 struct snd_pcm_hw_params *params)
130 {
131 struct snd_interval *rate = hw_param_interval(params,
132 SNDRV_PCM_HW_PARAM_RATE);
133 struct snd_interval *channels = hw_param_interval(params,
134 SNDRV_PCM_HW_PARAM_CHANNELS);
135 struct snd_mask *fmt =
136 hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
137 int ret;
138
139 /* The DSP will convert the FE rate to 48k, stereo, 24bits */
140 rate->min = rate->max = 48000;
141 channels->min = channels->max = 2;
142
143 /* set SSP2 to 24-bit */
144 snd_mask_none(fmt);
145 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
146
147 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
148 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_codec(rtd, 0), 0xf, 0x1, 4, 24);
149 if (ret < 0) {
150 dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
151 return ret;
152 }
153
154 return 0;
155 }
156
157 static int cht_aif1_startup(struct snd_pcm_substream *substream)
158 {
159 return snd_pcm_hw_constraint_single(substream->runtime,
160 SNDRV_PCM_HW_PARAM_RATE, 48000);
161 }
162
163 static const struct snd_soc_ops cht_aif1_ops = {
164 .startup = cht_aif1_startup,
165 };
166
167 static const struct snd_soc_ops cht_be_ssp2_ops = {
168 .hw_params = cht_aif1_hw_params,
169 };
170
171 SND_SOC_DAILINK_DEF(dummy,
172 DAILINK_COMP_ARRAY(COMP_DUMMY()));
173
174 SND_SOC_DAILINK_DEF(media,
175 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
176
177 SND_SOC_DAILINK_DEF(deepbuffer,
178 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
179
180 SND_SOC_DAILINK_DEF(ssp2_port,
181 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
182 SND_SOC_DAILINK_DEF(ssp2_codec,
183 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10508824:00",
184 NAU8824_CODEC_DAI)));
185
186 SND_SOC_DAILINK_DEF(platform,
187 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
188
189 static struct snd_soc_dai_link cht_dailink[] = {
190 /* Front End DAI links */
191 [MERR_DPCM_AUDIO] = {
192 .name = "Audio Port",
193 .stream_name = "Audio",
194 .nonatomic = true,
195 .dynamic = 1,
196 .dpcm_playback = 1,
197 .dpcm_capture = 1,
198 .ops = &cht_aif1_ops,
199 SND_SOC_DAILINK_REG(media, dummy, platform),
200 },
201 [MERR_DPCM_DEEP_BUFFER] = {
202 .name = "Deep-Buffer Audio Port",
203 .stream_name = "Deep-Buffer Audio",
204 .nonatomic = true,
205 .dynamic = 1,
206 .dpcm_playback = 1,
207 .ops = &cht_aif1_ops,
208 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
209 },
210 /* Back End DAI links */
211 {
212 /* SSP2 - Codec */
213 .name = "SSP2-Codec",
214 .id = 0,
215 .no_pcm = 1,
216 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
217 | SND_SOC_DAIFMT_CBC_CFC,
218 .init = cht_codec_init,
219 .be_hw_params_fixup = cht_codec_fixup,
220 .dpcm_playback = 1,
221 .dpcm_capture = 1,
222 .ops = &cht_be_ssp2_ops,
223 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
224 },
225 };
226
227 /* use space before codec name to simplify card ID, and simplify driver name */
228 #define SOF_CARD_NAME "bytcht nau8824" /* card name will be 'sof-bytcht nau8824 */
229 #define SOF_DRIVER_NAME "SOF"
230
231 #define CARD_NAME "chtnau8824"
232 #define DRIVER_NAME NULL /* card name will be used for driver name */
233
234 /* SoC card */
235 static struct snd_soc_card snd_soc_card_cht = {
236 .owner = THIS_MODULE,
237 .dai_link = cht_dailink,
238 .num_links = ARRAY_SIZE(cht_dailink),
239 .dapm_widgets = cht_dapm_widgets,
240 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
241 .dapm_routes = cht_audio_map,
242 .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
243 .controls = cht_mc_controls,
244 .num_controls = ARRAY_SIZE(cht_mc_controls),
245 };
246
247 static int snd_cht_mc_probe(struct platform_device *pdev)
248 {
249 struct cht_mc_private *drv;
250 struct snd_soc_acpi_mach *mach;
251 const char *platform_name;
252 bool sof_parent;
253 int ret_val;
254
255 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
256 if (!drv)
257 return -ENOMEM;
258 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
259
260 /* override platform name, if required */
261 snd_soc_card_cht.dev = &pdev->dev;
262 mach = pdev->dev.platform_data;
263 platform_name = mach->mach_params.platform;
264
265 ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
266 platform_name);
267 if (ret_val)
268 return ret_val;
269
270 sof_parent = snd_soc_acpi_sof_parent(&pdev->dev);
271
272 /* set card and driver name */
273 if (sof_parent) {
274 snd_soc_card_cht.name = SOF_CARD_NAME;
275 snd_soc_card_cht.driver_name = SOF_DRIVER_NAME;
276 } else {
277 snd_soc_card_cht.name = CARD_NAME;
278 snd_soc_card_cht.driver_name = DRIVER_NAME;
279 }
280
281 snd_soc_card_cht.components = nau8824_components();
282
283 /* set pm ops */
284 if (sof_parent)
285 pdev->dev.driver->pm = &snd_soc_pm_ops;
286
287 /* register the soc card */
288 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
289 if (ret_val) {
290 dev_err(&pdev->dev,
291 "snd_soc_register_card failed %d\n", ret_val);
292 return ret_val;
293 }
294 platform_set_drvdata(pdev, &snd_soc_card_cht);
295
296 return ret_val;
297 }
298
299 static struct platform_driver snd_cht_mc_driver = {
300 .driver = {
301 .name = "cht-bsw-nau8824",
302 },
303 .probe = snd_cht_mc_probe,
304 };
305
306 module_platform_driver(snd_cht_mc_driver);
307
308 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
309 MODULE_AUTHOR("Wang, Joseph C <joequant@gmail.com>");
310 MODULE_AUTHOR("John Hsu <KCHSU0@nuvoton.com>");
311 MODULE_LICENSE("GPL v2");
312 MODULE_ALIAS("platform:cht-bsw-nau8824");
313
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