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11#include <linux/gpio/consumer.h>
12#include <linux/input.h>
13#include <linux/module.h>
14#include <linux/platform_device.h>
15#include <linux/slab.h>
16#include <linux/clk.h>
17#include <sound/pcm.h>
18#include <sound/pcm_params.h>
19#include <sound/soc.h>
20#include <sound/jack.h>
21#include <sound/soc-acpi.h>
22#include "../../codecs/rt5670.h"
23#include "../atom/sst-atom-controls.h"
24
25
26
27#define CHT_PLAT_CLK_3_HZ 19200000
28#define CHT_CODEC_DAI "rt5670-aif1"
29
30struct cht_mc_private {
31 struct snd_soc_jack headset;
32 char codec_name[SND_ACPI_I2C_ID_LEN];
33 struct clk *mclk;
34};
35
36
37static struct snd_soc_jack_pin cht_bsw_headset_pins[] = {
38 {
39 .pin = "Headset Mic",
40 .mask = SND_JACK_MICROPHONE,
41 },
42 {
43 .pin = "Headphone",
44 .mask = SND_JACK_HEADPHONE,
45 },
46};
47
48static int platform_clock_control(struct snd_soc_dapm_widget *w,
49 struct snd_kcontrol *k, int event)
50{
51 struct snd_soc_dapm_context *dapm = w->dapm;
52 struct snd_soc_card *card = dapm->card;
53 struct snd_soc_dai *codec_dai;
54 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
55 int ret;
56
57 codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI);
58 if (!codec_dai) {
59 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
60 return -EIO;
61 }
62
63 if (SND_SOC_DAPM_EVENT_ON(event)) {
64 if (ctx->mclk) {
65 ret = clk_prepare_enable(ctx->mclk);
66 if (ret < 0) {
67 dev_err(card->dev,
68 "could not configure MCLK state");
69 return ret;
70 }
71 }
72
73
74 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
75 CHT_PLAT_CLK_3_HZ, 48000 * 512);
76 if (ret < 0) {
77 dev_err(card->dev, "can't set codec pll: %d\n", ret);
78 return ret;
79 }
80
81
82 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
83 48000 * 512, SND_SOC_CLOCK_IN);
84 if (ret < 0) {
85 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
86 return ret;
87 }
88 } else {
89
90
91
92
93
94 snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_RCCLK,
95 48000 * 512, SND_SOC_CLOCK_IN);
96
97 if (ctx->mclk)
98 clk_disable_unprepare(ctx->mclk);
99 }
100 return 0;
101}
102
103static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
104 SND_SOC_DAPM_HP("Headphone", NULL),
105 SND_SOC_DAPM_MIC("Headset Mic", NULL),
106 SND_SOC_DAPM_MIC("Int Mic", NULL),
107 SND_SOC_DAPM_SPK("Ext Spk", NULL),
108 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
109 platform_clock_control, SND_SOC_DAPM_PRE_PMU |
110 SND_SOC_DAPM_POST_PMD),
111};
112
113static const struct snd_soc_dapm_route cht_audio_map[] = {
114 {"IN1P", NULL, "Headset Mic"},
115 {"IN1N", NULL, "Headset Mic"},
116 {"DMIC L1", NULL, "Int Mic"},
117 {"DMIC R1", NULL, "Int Mic"},
118 {"Headphone", NULL, "HPOL"},
119 {"Headphone", NULL, "HPOR"},
120 {"Ext Spk", NULL, "SPOLP"},
121 {"Ext Spk", NULL, "SPOLN"},
122 {"Ext Spk", NULL, "SPORP"},
123 {"Ext Spk", NULL, "SPORN"},
124 {"AIF1 Playback", NULL, "ssp2 Tx"},
125 {"ssp2 Tx", NULL, "codec_out0"},
126 {"ssp2 Tx", NULL, "codec_out1"},
127 {"codec_in0", NULL, "ssp2 Rx"},
128 {"codec_in1", NULL, "ssp2 Rx"},
129 {"ssp2 Rx", NULL, "AIF1 Capture"},
130 {"Headphone", NULL, "Platform Clock"},
131 {"Headset Mic", NULL, "Platform Clock"},
132 {"Int Mic", NULL, "Platform Clock"},
133 {"Ext Spk", NULL, "Platform Clock"},
134};
135
136static const struct snd_kcontrol_new cht_mc_controls[] = {
137 SOC_DAPM_PIN_SWITCH("Headphone"),
138 SOC_DAPM_PIN_SWITCH("Headset Mic"),
139 SOC_DAPM_PIN_SWITCH("Int Mic"),
140 SOC_DAPM_PIN_SWITCH("Ext Spk"),
141};
142
143static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
144 struct snd_pcm_hw_params *params)
145{
146 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
147 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
148 int ret;
149
150
151 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
152 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
153 if (ret < 0) {
154 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
155 return ret;
156 }
157
158
159 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
160 params_rate(params) * 512,
161 SND_SOC_CLOCK_IN);
162 if (ret < 0) {
163 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
164 return ret;
165 }
166 return 0;
167}
168
169static const struct acpi_gpio_params headset_gpios = { 0, 0, false };
170
171static const struct acpi_gpio_mapping cht_rt5672_gpios[] = {
172 { "headset-gpios", &headset_gpios, 1 },
173 {},
174};
175
176static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
177{
178 int ret;
179 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
180 struct snd_soc_component *component = codec_dai->component;
181 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
182
183 if (devm_acpi_dev_add_driver_gpios(component->dev, cht_rt5672_gpios))
184 dev_warn(runtime->dev, "Unable to add GPIO mapping table\n");
185
186
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189
190
191 rt5670_sel_asrc_clk_src(component,
192 RT5670_DA_STEREO_FILTER
193 | RT5670_DA_MONO_L_FILTER
194 | RT5670_DA_MONO_R_FILTER
195 | RT5670_AD_STEREO_FILTER
196 | RT5670_AD_MONO_L_FILTER
197 | RT5670_AD_MONO_R_FILTER,
198 RT5670_CLK_SEL_I2S1_ASRC);
199
200 ret = snd_soc_card_jack_new(runtime->card, "Headset",
201 SND_JACK_HEADSET | SND_JACK_BTN_0 |
202 SND_JACK_BTN_1 | SND_JACK_BTN_2,
203 &ctx->headset,
204 cht_bsw_headset_pins,
205 ARRAY_SIZE(cht_bsw_headset_pins));
206 if (ret)
207 return ret;
208
209 snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
210 snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
211 snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
212
213 rt5670_set_jack_detect(component, &ctx->headset);
214 if (ctx->mclk) {
215
216
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218
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224
225 ret = clk_prepare_enable(ctx->mclk);
226 if (!ret)
227 clk_disable_unprepare(ctx->mclk);
228
229 ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
230
231 if (ret) {
232 dev_err(runtime->dev, "unable to set MCLK rate\n");
233 return ret;
234 }
235 }
236 return 0;
237}
238
239static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
240 struct snd_pcm_hw_params *params)
241{
242 struct snd_interval *rate = hw_param_interval(params,
243 SNDRV_PCM_HW_PARAM_RATE);
244 struct snd_interval *channels = hw_param_interval(params,
245 SNDRV_PCM_HW_PARAM_CHANNELS);
246 int ret;
247
248
249 rate->min = rate->max = 48000;
250 channels->min = channels->max = 2;
251
252
253 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
254
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266
267
268 ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
269 SND_SOC_DAIFMT_I2S |
270 SND_SOC_DAIFMT_NB_NF |
271 SND_SOC_DAIFMT_CBS_CFS);
272 if (ret < 0) {
273 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
274 return ret;
275 }
276
277 return 0;
278}
279
280static int cht_aif1_startup(struct snd_pcm_substream *substream)
281{
282 return snd_pcm_hw_constraint_single(substream->runtime,
283 SNDRV_PCM_HW_PARAM_RATE, 48000);
284}
285
286static const struct snd_soc_ops cht_aif1_ops = {
287 .startup = cht_aif1_startup,
288};
289
290static const struct snd_soc_ops cht_be_ssp2_ops = {
291 .hw_params = cht_aif1_hw_params,
292};
293
294SND_SOC_DAILINK_DEF(dummy,
295 DAILINK_COMP_ARRAY(COMP_DUMMY()));
296
297SND_SOC_DAILINK_DEF(media,
298 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
299
300SND_SOC_DAILINK_DEF(deepbuffer,
301 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
302
303SND_SOC_DAILINK_DEF(ssp2_port,
304 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
305SND_SOC_DAILINK_DEF(ssp2_codec,
306 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5670:00",
307 "rt5670-aif1")));
308
309SND_SOC_DAILINK_DEF(platform,
310 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
311
312static struct snd_soc_dai_link cht_dailink[] = {
313
314 [MERR_DPCM_AUDIO] = {
315 .name = "Audio Port",
316 .stream_name = "Audio",
317 .nonatomic = true,
318 .dynamic = 1,
319 .dpcm_playback = 1,
320 .dpcm_capture = 1,
321 .ops = &cht_aif1_ops,
322 SND_SOC_DAILINK_REG(media, dummy, platform),
323 },
324 [MERR_DPCM_DEEP_BUFFER] = {
325 .name = "Deep-Buffer Audio Port",
326 .stream_name = "Deep-Buffer Audio",
327 .nonatomic = true,
328 .dynamic = 1,
329 .dpcm_playback = 1,
330 .ops = &cht_aif1_ops,
331 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
332 },
333
334
335 {
336
337 .name = "SSP2-Codec",
338 .id = 0,
339 .no_pcm = 1,
340 .nonatomic = true,
341 .init = cht_codec_init,
342 .be_hw_params_fixup = cht_codec_fixup,
343 .dpcm_playback = 1,
344 .dpcm_capture = 1,
345 .ops = &cht_be_ssp2_ops,
346 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
347 },
348};
349
350static int cht_suspend_pre(struct snd_soc_card *card)
351{
352 struct snd_soc_component *component;
353 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
354
355 for_each_card_components(card, component) {
356 if (!strncmp(component->name,
357 ctx->codec_name, sizeof(ctx->codec_name))) {
358
359 dev_dbg(component->dev, "disabling jack detect before going to suspend.\n");
360 rt5670_jack_suspend(component);
361 break;
362 }
363 }
364 return 0;
365}
366
367static int cht_resume_post(struct snd_soc_card *card)
368{
369 struct snd_soc_component *component;
370 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
371
372 for_each_card_components(card, component) {
373 if (!strncmp(component->name,
374 ctx->codec_name, sizeof(ctx->codec_name))) {
375
376 dev_dbg(component->dev, "enabling jack detect for resume.\n");
377 rt5670_jack_resume(component);
378 break;
379 }
380 }
381
382 return 0;
383}
384
385
386#define SOF_CARD_NAME "bytcht rt5672"
387#define SOF_DRIVER_NAME "SOF"
388
389#define CARD_NAME "cht-bsw-rt5672"
390#define DRIVER_NAME NULL
391
392
393static struct snd_soc_card snd_soc_card_cht = {
394 .owner = THIS_MODULE,
395 .dai_link = cht_dailink,
396 .num_links = ARRAY_SIZE(cht_dailink),
397 .dapm_widgets = cht_dapm_widgets,
398 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
399 .dapm_routes = cht_audio_map,
400 .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
401 .controls = cht_mc_controls,
402 .num_controls = ARRAY_SIZE(cht_mc_controls),
403 .suspend_pre = cht_suspend_pre,
404 .resume_post = cht_resume_post,
405};
406
407#define RT5672_I2C_DEFAULT "i2c-10EC5670:00"
408
409static int snd_cht_mc_probe(struct platform_device *pdev)
410{
411 int ret_val = 0;
412 struct cht_mc_private *drv;
413 struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
414 const char *platform_name;
415 struct acpi_device *adev;
416 bool sof_parent;
417 int i;
418
419 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
420 if (!drv)
421 return -ENOMEM;
422
423 strcpy(drv->codec_name, RT5672_I2C_DEFAULT);
424
425
426 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
427 if (adev) {
428 snprintf(drv->codec_name, sizeof(drv->codec_name),
429 "i2c-%s", acpi_dev_name(adev));
430 put_device(&adev->dev);
431 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
432 if (!strcmp(cht_dailink[i].codecs->name,
433 RT5672_I2C_DEFAULT)) {
434 cht_dailink[i].codecs->name = drv->codec_name;
435 break;
436 }
437 }
438 }
439
440
441 snd_soc_card_cht.dev = &pdev->dev;
442 platform_name = mach->mach_params.platform;
443
444 ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
445 platform_name);
446 if (ret_val)
447 return ret_val;
448
449 drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
450 if (IS_ERR(drv->mclk)) {
451 dev_err(&pdev->dev,
452 "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
453 PTR_ERR(drv->mclk));
454 return PTR_ERR(drv->mclk);
455 }
456 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
457
458 sof_parent = snd_soc_acpi_sof_parent(&pdev->dev);
459
460
461 if (sof_parent) {
462 snd_soc_card_cht.name = SOF_CARD_NAME;
463 snd_soc_card_cht.driver_name = SOF_DRIVER_NAME;
464 } else {
465 snd_soc_card_cht.name = CARD_NAME;
466 snd_soc_card_cht.driver_name = DRIVER_NAME;
467 }
468
469
470 if (sof_parent)
471 pdev->dev.driver->pm = &snd_soc_pm_ops;
472
473
474 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
475 if (ret_val) {
476 dev_err(&pdev->dev,
477 "snd_soc_register_card failed %d\n", ret_val);
478 return ret_val;
479 }
480 platform_set_drvdata(pdev, &snd_soc_card_cht);
481 return ret_val;
482}
483
484static struct platform_driver snd_cht_mc_driver = {
485 .driver = {
486 .name = "cht-bsw-rt5672",
487 },
488 .probe = snd_cht_mc_probe,
489};
490
491module_platform_driver(snd_cht_mc_driver);
492
493MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
494MODULE_AUTHOR("Subhransu S. Prusty, Mengdong Lin");
495MODULE_LICENSE("GPL v2");
496MODULE_ALIAS("platform:cht-bsw-rt5672");
497
