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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 = substream->private_data;
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
187
188
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
217
218
219
220
221
222
223
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
255
256
257
258 ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0),
259 SND_SOC_DAIFMT_DSP_B |
260 SND_SOC_DAIFMT_IB_NF |
261 SND_SOC_DAIFMT_CBS_CFS);
262 if (ret < 0) {
263 dev_err(rtd->dev, "can't set format to TDM %d\n", ret);
264 return ret;
265 }
266
267
268 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0), 0xF, 0xF, 4, 24);
269 if (ret < 0) {
270 dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
271 return ret;
272 }
273
274 return 0;
275}
276
277static int cht_aif1_startup(struct snd_pcm_substream *substream)
278{
279 return snd_pcm_hw_constraint_single(substream->runtime,
280 SNDRV_PCM_HW_PARAM_RATE, 48000);
281}
282
283static const struct snd_soc_ops cht_aif1_ops = {
284 .startup = cht_aif1_startup,
285};
286
287static const struct snd_soc_ops cht_be_ssp2_ops = {
288 .hw_params = cht_aif1_hw_params,
289};
290
291SND_SOC_DAILINK_DEF(dummy,
292 DAILINK_COMP_ARRAY(COMP_DUMMY()));
293
294SND_SOC_DAILINK_DEF(media,
295 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
296
297SND_SOC_DAILINK_DEF(deepbuffer,
298 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
299
300SND_SOC_DAILINK_DEF(ssp2_port,
301 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
302SND_SOC_DAILINK_DEF(ssp2_codec,
303 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5670:00",
304 "rt5670-aif1")));
305
306SND_SOC_DAILINK_DEF(platform,
307 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
308
309static struct snd_soc_dai_link cht_dailink[] = {
310
311 [MERR_DPCM_AUDIO] = {
312 .name = "Audio Port",
313 .stream_name = "Audio",
314 .nonatomic = true,
315 .dynamic = 1,
316 .dpcm_playback = 1,
317 .dpcm_capture = 1,
318 .ops = &cht_aif1_ops,
319 SND_SOC_DAILINK_REG(media, dummy, platform),
320 },
321 [MERR_DPCM_DEEP_BUFFER] = {
322 .name = "Deep-Buffer Audio Port",
323 .stream_name = "Deep-Buffer Audio",
324 .nonatomic = true,
325 .dynamic = 1,
326 .dpcm_playback = 1,
327 .ops = &cht_aif1_ops,
328 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
329 },
330
331
332 {
333
334 .name = "SSP2-Codec",
335 .id = 0,
336 .no_pcm = 1,
337 .nonatomic = true,
338 .init = cht_codec_init,
339 .be_hw_params_fixup = cht_codec_fixup,
340 .dpcm_playback = 1,
341 .dpcm_capture = 1,
342 .ops = &cht_be_ssp2_ops,
343 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
344 },
345};
346
347static int cht_suspend_pre(struct snd_soc_card *card)
348{
349 struct snd_soc_component *component;
350 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
351
352 for_each_card_components(card, component) {
353 if (!strncmp(component->name,
354 ctx->codec_name, sizeof(ctx->codec_name))) {
355
356 dev_dbg(component->dev, "disabling jack detect before going to suspend.\n");
357 rt5670_jack_suspend(component);
358 break;
359 }
360 }
361 return 0;
362}
363
364static int cht_resume_post(struct snd_soc_card *card)
365{
366 struct snd_soc_component *component;
367 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
368
369 for_each_card_components(card, component) {
370 if (!strncmp(component->name,
371 ctx->codec_name, sizeof(ctx->codec_name))) {
372
373 dev_dbg(component->dev, "enabling jack detect for resume.\n");
374 rt5670_jack_resume(component);
375 break;
376 }
377 }
378
379 return 0;
380}
381
382
383static struct snd_soc_card snd_soc_card_cht = {
384 .name = "cht-bsw-rt5672",
385 .owner = THIS_MODULE,
386 .dai_link = cht_dailink,
387 .num_links = ARRAY_SIZE(cht_dailink),
388 .dapm_widgets = cht_dapm_widgets,
389 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
390 .dapm_routes = cht_audio_map,
391 .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
392 .controls = cht_mc_controls,
393 .num_controls = ARRAY_SIZE(cht_mc_controls),
394 .suspend_pre = cht_suspend_pre,
395 .resume_post = cht_resume_post,
396};
397
398#define RT5672_I2C_DEFAULT "i2c-10EC5670:00"
399
400static int snd_cht_mc_probe(struct platform_device *pdev)
401{
402 int ret_val = 0;
403 struct cht_mc_private *drv;
404 struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
405 const char *platform_name;
406 struct acpi_device *adev;
407 int i;
408
409 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
410 if (!drv)
411 return -ENOMEM;
412
413 strcpy(drv->codec_name, RT5672_I2C_DEFAULT);
414
415
416 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
417 if (adev) {
418 snprintf(drv->codec_name, sizeof(drv->codec_name),
419 "i2c-%s", acpi_dev_name(adev));
420 put_device(&adev->dev);
421 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
422 if (!strcmp(cht_dailink[i].codecs->name,
423 RT5672_I2C_DEFAULT)) {
424 cht_dailink[i].codecs->name = drv->codec_name;
425 break;
426 }
427 }
428 }
429
430
431 snd_soc_card_cht.dev = &pdev->dev;
432 platform_name = mach->mach_params.platform;
433
434 ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
435 platform_name);
436 if (ret_val)
437 return ret_val;
438
439 drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
440 if (IS_ERR(drv->mclk)) {
441 dev_err(&pdev->dev,
442 "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
443 PTR_ERR(drv->mclk));
444 return PTR_ERR(drv->mclk);
445 }
446 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
447
448
449 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
450 if (ret_val) {
451 dev_err(&pdev->dev,
452 "snd_soc_register_card failed %d\n", ret_val);
453 return ret_val;
454 }
455 platform_set_drvdata(pdev, &snd_soc_card_cht);
456 return ret_val;
457}
458
459static struct platform_driver snd_cht_mc_driver = {
460 .driver = {
461 .name = "cht-bsw-rt5672",
462 },
463 .probe = snd_cht_mc_probe,
464};
465
466module_platform_driver(snd_cht_mc_driver);
467
468MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
469MODULE_AUTHOR("Subhransu S. Prusty, Mengdong Lin");
470MODULE_LICENSE("GPL v2");
471MODULE_ALIAS("platform:cht-bsw-rt5672");
472
