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7#include <dt-bindings/sound/sc7180-lpass.h>
8#include <linux/gpio.h>
9#include <linux/gpio/consumer.h>
10#include <linux/module.h>
11#include <linux/of_device.h>
12#include <linux/platform_device.h>
13#include <sound/core.h>
14#include <sound/jack.h>
15#include <sound/pcm.h>
16#include <sound/soc.h>
17#include <uapi/linux/input-event-codes.h>
18
19#include "../codecs/rt5682.h"
20#include "common.h"
21#include "lpass.h"
22
23#define DEFAULT_MCLK_RATE 19200000
24#define RT5682_PLL1_FREQ (48000 * 512)
25
26#define DRIVER_NAME "SC7180"
27
28struct sc7180_snd_data {
29 struct snd_soc_card card;
30 u32 pri_mi2s_clk_count;
31 struct snd_soc_jack hs_jack;
32 struct snd_soc_jack hdmi_jack;
33 struct gpio_desc *dmic_sel;
34 int dmic_switch;
35};
36
37static void sc7180_jack_free(struct snd_jack *jack)
38{
39 struct snd_soc_component *component = jack->private_data;
40
41 snd_soc_component_set_jack(component, NULL, NULL);
42}
43
44static int sc7180_headset_init(struct snd_soc_pcm_runtime *rtd)
45{
46 struct snd_soc_card *card = rtd->card;
47 struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card);
48 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
49 struct snd_soc_component *component = codec_dai->component;
50 struct snd_jack *jack;
51 int rval;
52
53 rval = snd_soc_card_jack_new(
54 card, "Headset Jack",
55 SND_JACK_HEADSET |
56 SND_JACK_HEADPHONE |
57 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
58 SND_JACK_BTN_2 | SND_JACK_BTN_3,
59 &pdata->hs_jack, NULL, 0);
60
61 if (rval < 0) {
62 dev_err(card->dev, "Unable to add Headset Jack\n");
63 return rval;
64 }
65
66 jack = pdata->hs_jack.jack;
67
68 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
69 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
70 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
71 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
72
73 jack->private_data = component;
74 jack->private_free = sc7180_jack_free;
75
76 return snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
77}
78
79static int sc7180_hdmi_init(struct snd_soc_pcm_runtime *rtd)
80{
81 struct snd_soc_card *card = rtd->card;
82 struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card);
83 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
84 struct snd_soc_component *component = codec_dai->component;
85 struct snd_jack *jack;
86 int rval;
87
88 rval = snd_soc_card_jack_new(
89 card, "HDMI Jack",
90 SND_JACK_LINEOUT,
91 &pdata->hdmi_jack, NULL, 0);
92
93 if (rval < 0) {
94 dev_err(card->dev, "Unable to add HDMI Jack\n");
95 return rval;
96 }
97
98 jack = pdata->hdmi_jack.jack;
99 jack->private_data = component;
100 jack->private_free = sc7180_jack_free;
101
102 return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);
103}
104
105static int sc7180_init(struct snd_soc_pcm_runtime *rtd)
106{
107 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
108
109 switch (cpu_dai->id) {
110 case MI2S_PRIMARY:
111 return sc7180_headset_init(rtd);
112 case MI2S_SECONDARY:
113 return 0;
114 case LPASS_DP_RX:
115 return sc7180_hdmi_init(rtd);
116 default:
117 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
118 cpu_dai->id);
119 return -EINVAL;
120 }
121 return 0;
122}
123
124static int sc7180_snd_startup(struct snd_pcm_substream *substream)
125{
126 struct snd_soc_pcm_runtime *rtd = substream->private_data;
127 struct snd_soc_card *card = rtd->card;
128 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
129 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
130 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
131 int ret;
132
133 switch (cpu_dai->id) {
134 case MI2S_PRIMARY:
135 if (++data->pri_mi2s_clk_count == 1) {
136 snd_soc_dai_set_sysclk(cpu_dai,
137 LPASS_MCLK0,
138 DEFAULT_MCLK_RATE,
139 SNDRV_PCM_STREAM_PLAYBACK);
140 }
141
142 snd_soc_dai_set_fmt(codec_dai,
143 SND_SOC_DAIFMT_CBS_CFS |
144 SND_SOC_DAIFMT_NB_NF |
145 SND_SOC_DAIFMT_I2S);
146
147
148 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK,
149 DEFAULT_MCLK_RATE, RT5682_PLL1_FREQ);
150 if (ret) {
151 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
152 return ret;
153 }
154
155
156 ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1,
157 RT5682_PLL1_FREQ,
158 SND_SOC_CLOCK_IN);
159 if (ret)
160 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
161 ret);
162
163 break;
164 case MI2S_SECONDARY:
165 break;
166 case LPASS_DP_RX:
167 break;
168 default:
169 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
170 cpu_dai->id);
171 return -EINVAL;
172 }
173 return 0;
174}
175
176static int dmic_get(struct snd_kcontrol *kcontrol,
177 struct snd_ctl_elem_value *ucontrol)
178{
179 struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
180 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
181
182 ucontrol->value.integer.value[0] = data->dmic_switch;
183 return 0;
184}
185
186static int dmic_set(struct snd_kcontrol *kcontrol,
187 struct snd_ctl_elem_value *ucontrol)
188{
189 struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
190 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
191
192 data->dmic_switch = ucontrol->value.integer.value[0];
193 gpiod_set_value(data->dmic_sel, data->dmic_switch);
194 return 0;
195}
196
197static void sc7180_snd_shutdown(struct snd_pcm_substream *substream)
198{
199 struct snd_soc_pcm_runtime *rtd = substream->private_data;
200 struct snd_soc_card *card = rtd->card;
201 struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
202 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
203
204 switch (cpu_dai->id) {
205 case MI2S_PRIMARY:
206 if (--data->pri_mi2s_clk_count == 0) {
207 snd_soc_dai_set_sysclk(cpu_dai,
208 LPASS_MCLK0,
209 0,
210 SNDRV_PCM_STREAM_PLAYBACK);
211 }
212 break;
213 case MI2S_SECONDARY:
214 break;
215 case LPASS_DP_RX:
216 break;
217 default:
218 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
219 cpu_dai->id);
220 break;
221 }
222}
223
224static int sc7180_adau7002_init(struct snd_soc_pcm_runtime *rtd)
225{
226 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
227
228 switch (cpu_dai->id) {
229 case MI2S_PRIMARY:
230 return 0;
231 case MI2S_SECONDARY:
232 return 0;
233 case LPASS_DP_RX:
234 return sc7180_hdmi_init(rtd);
235 default:
236 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
237 cpu_dai->id);
238 return -EINVAL;
239 }
240 return 0;
241}
242
243static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream)
244{
245 struct snd_soc_pcm_runtime *rtd = substream->private_data;
246 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
247 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
248 struct snd_pcm_runtime *runtime = substream->runtime;
249
250 switch (cpu_dai->id) {
251 case MI2S_PRIMARY:
252 snd_soc_dai_set_fmt(codec_dai,
253 SND_SOC_DAIFMT_CBS_CFS |
254 SND_SOC_DAIFMT_NB_NF |
255 SND_SOC_DAIFMT_I2S);
256 runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
257 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 32);
258
259 break;
260 case MI2S_SECONDARY:
261 break;
262 case LPASS_DP_RX:
263 break;
264 default:
265 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
266 cpu_dai->id);
267 return -EINVAL;
268 }
269 return 0;
270}
271
272static const struct snd_soc_ops sc7180_ops = {
273 .startup = sc7180_snd_startup,
274 .shutdown = sc7180_snd_shutdown,
275};
276
277static const struct snd_soc_ops sc7180_adau7002_ops = {
278 .startup = sc7180_adau7002_snd_startup,
279};
280
281static const struct snd_soc_dapm_widget sc7180_snd_widgets[] = {
282 SND_SOC_DAPM_HP("Headphone Jack", NULL),
283 SND_SOC_DAPM_MIC("Headset Mic", NULL),
284};
285
286static const struct snd_soc_dapm_widget sc7180_adau7002_snd_widgets[] = {
287 SND_SOC_DAPM_MIC("DMIC", NULL),
288};
289
290static const char * const dmic_mux_text[] = {
291 "Front Mic",
292 "Rear Mic",
293};
294
295static SOC_ENUM_SINGLE_DECL(sc7180_dmic_enum,
296 SND_SOC_NOPM, 0, dmic_mux_text);
297
298static const struct snd_kcontrol_new sc7180_dmic_mux_control =
299 SOC_DAPM_ENUM_EXT("DMIC Select Mux", sc7180_dmic_enum,
300 dmic_get, dmic_set);
301
302static const struct snd_soc_dapm_widget sc7180_snd_dual_mic_widgets[] = {
303 SND_SOC_DAPM_HP("Headphone Jack", NULL),
304 SND_SOC_DAPM_MIC("Headset Mic", NULL),
305 SND_SOC_DAPM_MIC("DMIC", NULL),
306 SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0, &sc7180_dmic_mux_control),
307};
308
309static const struct snd_soc_dapm_route sc7180_snd_dual_mic_audio_route[] = {
310 {"Dmic Mux", "Front Mic", "DMIC"},
311 {"Dmic Mux", "Rear Mic", "DMIC"},
312};
313
314static int sc7180_snd_platform_probe(struct platform_device *pdev)
315{
316 struct snd_soc_card *card;
317 struct sc7180_snd_data *data;
318 struct device *dev = &pdev->dev;
319 struct snd_soc_dai_link *link;
320 int ret;
321 int i;
322 bool no_headphone = false;
323
324
325 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
326 if (!data)
327 return -ENOMEM;
328
329 card = &data->card;
330 snd_soc_card_set_drvdata(card, data);
331
332 card->owner = THIS_MODULE;
333 card->driver_name = DRIVER_NAME;
334 card->dev = dev;
335 card->dapm_widgets = sc7180_snd_widgets;
336 card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_widgets);
337
338 if (of_property_read_bool(dev->of_node, "dmic-gpios")) {
339 card->dapm_widgets = sc7180_snd_dual_mic_widgets,
340 card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_dual_mic_widgets),
341 card->dapm_routes = sc7180_snd_dual_mic_audio_route,
342 card->num_dapm_routes = ARRAY_SIZE(sc7180_snd_dual_mic_audio_route),
343 data->dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW);
344 if (IS_ERR(data->dmic_sel)) {
345 dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n", PTR_ERR(data->dmic_sel));
346 return PTR_ERR(data->dmic_sel);
347 }
348 }
349
350 if (of_device_is_compatible(dev->of_node, "google,sc7180-coachz")) {
351 no_headphone = true;
352 card->dapm_widgets = sc7180_adau7002_snd_widgets;
353 card->num_dapm_widgets = ARRAY_SIZE(sc7180_adau7002_snd_widgets);
354 }
355
356 ret = qcom_snd_parse_of(card);
357 if (ret)
358 return ret;
359
360 for_each_card_prelinks(card, i, link) {
361 if (no_headphone) {
362 link->ops = &sc7180_adau7002_ops;
363 link->init = sc7180_adau7002_init;
364 } else {
365 link->ops = &sc7180_ops;
366 link->init = sc7180_init;
367 }
368 }
369
370 return devm_snd_soc_register_card(dev, card);
371}
372
373static const struct of_device_id sc7180_snd_device_id[] = {
374 {.compatible = "google,sc7180-trogdor"},
375 {.compatible = "google,sc7180-coachz"},
376 {},
377};
378MODULE_DEVICE_TABLE(of, sc7180_snd_device_id);
379
380static struct platform_driver sc7180_snd_driver = {
381 .probe = sc7180_snd_platform_probe,
382 .driver = {
383 .name = "msm-snd-sc7180",
384 .of_match_table = sc7180_snd_device_id,
385 .pm = &snd_soc_pm_ops,
386 },
387};
388module_platform_driver(sc7180_snd_driver);
389
390MODULE_DESCRIPTION("sc7180 ASoC Machine Driver");
391MODULE_LICENSE("GPL v2");
392
