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11#include <linux/input.h>
12#include <linux/module.h>
13#include <linux/platform_device.h>
14#include <linux/slab.h>
15#include <linux/clk.h>
16#include <sound/pcm.h>
17#include <sound/pcm_params.h>
18#include <sound/soc.h>
19#include <sound/jack.h>
20#include <sound/soc-acpi.h>
21#include "../../codecs/rt5670.h"
22#include "../atom/sst-atom-controls.h"
23
24
25
26#define CHT_PLAT_CLK_3_HZ 19200000
27#define CHT_CODEC_DAI "rt5670-aif1"
28
29struct cht_mc_private {
30 struct snd_soc_jack headset;
31 char codec_name[SND_ACPI_I2C_ID_LEN];
32 struct clk *mclk;
33};
34
35
36static struct snd_soc_jack_pin cht_bsw_headset_pins[] = {
37 {
38 .pin = "Headset Mic",
39 .mask = SND_JACK_MICROPHONE,
40 },
41 {
42 .pin = "Headphone",
43 .mask = SND_JACK_HEADPHONE,
44 },
45};
46
47static int platform_clock_control(struct snd_soc_dapm_widget *w,
48 struct snd_kcontrol *k, int event)
49{
50 struct snd_soc_dapm_context *dapm = w->dapm;
51 struct snd_soc_card *card = dapm->card;
52 struct snd_soc_dai *codec_dai;
53 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
54 int ret;
55
56 codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI);
57 if (!codec_dai) {
58 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
59 return -EIO;
60 }
61
62 if (SND_SOC_DAPM_EVENT_ON(event)) {
63 if (ctx->mclk) {
64 ret = clk_prepare_enable(ctx->mclk);
65 if (ret < 0) {
66 dev_err(card->dev,
67 "could not configure MCLK state");
68 return ret;
69 }
70 }
71
72
73 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
74 CHT_PLAT_CLK_3_HZ, 48000 * 512);
75 if (ret < 0) {
76 dev_err(card->dev, "can't set codec pll: %d\n", ret);
77 return ret;
78 }
79
80
81 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
82 48000 * 512, SND_SOC_CLOCK_IN);
83 if (ret < 0) {
84 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
85 return ret;
86 }
87 } else {
88
89
90
91
92
93 snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_RCCLK,
94 48000 * 512, SND_SOC_CLOCK_IN);
95
96 if (ctx->mclk)
97 clk_disable_unprepare(ctx->mclk);
98 }
99 return 0;
100}
101
102static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
103 SND_SOC_DAPM_HP("Headphone", NULL),
104 SND_SOC_DAPM_MIC("Headset Mic", NULL),
105 SND_SOC_DAPM_MIC("Int Mic", NULL),
106 SND_SOC_DAPM_SPK("Ext Spk", NULL),
107 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
108 platform_clock_control, SND_SOC_DAPM_PRE_PMU |
109 SND_SOC_DAPM_POST_PMD),
110};
111
112static const struct snd_soc_dapm_route cht_audio_map[] = {
113 {"IN1P", NULL, "Headset Mic"},
114 {"IN1N", NULL, "Headset Mic"},
115 {"DMIC L1", NULL, "Int Mic"},
116 {"DMIC R1", NULL, "Int Mic"},
117 {"Headphone", NULL, "HPOL"},
118 {"Headphone", NULL, "HPOR"},
119 {"Ext Spk", NULL, "SPOLP"},
120 {"Ext Spk", NULL, "SPOLN"},
121 {"Ext Spk", NULL, "SPORP"},
122 {"Ext Spk", NULL, "SPORN"},
123 {"AIF1 Playback", NULL, "ssp2 Tx"},
124 {"ssp2 Tx", NULL, "codec_out0"},
125 {"ssp2 Tx", NULL, "codec_out1"},
126 {"codec_in0", NULL, "ssp2 Rx"},
127 {"codec_in1", NULL, "ssp2 Rx"},
128 {"ssp2 Rx", NULL, "AIF1 Capture"},
129 {"Headphone", NULL, "Platform Clock"},
130 {"Headset Mic", NULL, "Platform Clock"},
131 {"Int Mic", NULL, "Platform Clock"},
132 {"Ext Spk", NULL, "Platform Clock"},
133};
134
135static const struct snd_kcontrol_new cht_mc_controls[] = {
136 SOC_DAPM_PIN_SWITCH("Headphone"),
137 SOC_DAPM_PIN_SWITCH("Headset Mic"),
138 SOC_DAPM_PIN_SWITCH("Int Mic"),
139 SOC_DAPM_PIN_SWITCH("Ext Spk"),
140};
141
142static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
143 struct snd_pcm_hw_params *params)
144{
145 struct snd_soc_pcm_runtime *rtd = substream->private_data;
146 struct snd_soc_dai *codec_dai = rtd->codec_dai;
147 int ret;
148
149
150 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
151 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
152 if (ret < 0) {
153 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
154 return ret;
155 }
156
157
158 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
159 params_rate(params) * 512,
160 SND_SOC_CLOCK_IN);
161 if (ret < 0) {
162 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
163 return ret;
164 }
165 return 0;
166}
167
168static const struct acpi_gpio_params headset_gpios = { 0, 0, false };
169
170static const struct acpi_gpio_mapping cht_rt5672_gpios[] = {
171 { "headset-gpios", &headset_gpios, 1 },
172 {},
173};
174
175static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
176{
177 int ret;
178 struct snd_soc_dai *codec_dai = runtime->codec_dai;
179 struct snd_soc_component *component = codec_dai->component;
180 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
181
182 if (devm_acpi_dev_add_driver_gpios(component->dev, cht_rt5672_gpios))
183 dev_warn(runtime->dev, "Unable to add GPIO mapping table\n");
184
185
186
187
188
189
190 rt5670_sel_asrc_clk_src(component,
191 RT5670_DA_STEREO_FILTER
192 | RT5670_DA_MONO_L_FILTER
193 | RT5670_DA_MONO_R_FILTER
194 | RT5670_AD_STEREO_FILTER
195 | RT5670_AD_MONO_L_FILTER
196 | RT5670_AD_MONO_R_FILTER,
197 RT5670_CLK_SEL_I2S1_ASRC);
198
199 ret = snd_soc_card_jack_new(runtime->card, "Headset",
200 SND_JACK_HEADSET | SND_JACK_BTN_0 |
201 SND_JACK_BTN_1 | SND_JACK_BTN_2,
202 &ctx->headset,
203 cht_bsw_headset_pins,
204 ARRAY_SIZE(cht_bsw_headset_pins));
205 if (ret)
206 return ret;
207
208 snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
209 snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
210 snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
211
212 rt5670_set_jack_detect(component, &ctx->headset);
213 if (ctx->mclk) {
214
215
216
217
218
219
220
221
222
223
224 ret = clk_prepare_enable(ctx->mclk);
225 if (!ret)
226 clk_disable_unprepare(ctx->mclk);
227
228 ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
229
230 if (ret) {
231 dev_err(runtime->dev, "unable to set MCLK rate\n");
232 return ret;
233 }
234 }
235 return 0;
236}
237
238static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
239 struct snd_pcm_hw_params *params)
240{
241 struct snd_interval *rate = hw_param_interval(params,
242 SNDRV_PCM_HW_PARAM_RATE);
243 struct snd_interval *channels = hw_param_interval(params,
244 SNDRV_PCM_HW_PARAM_CHANNELS);
245 int ret;
246
247
248 rate->min = rate->max = 48000;
249 channels->min = channels->max = 2;
250
251
252 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
253
254
255
256
257 ret = snd_soc_dai_set_fmt(rtd->codec_dai,
258 SND_SOC_DAIFMT_DSP_B |
259 SND_SOC_DAIFMT_IB_NF |
260 SND_SOC_DAIFMT_CBS_CFS);
261 if (ret < 0) {
262 dev_err(rtd->dev, "can't set format to TDM %d\n", ret);
263 return ret;
264 }
265
266
267 ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0xF, 0xF, 4, 24);
268 if (ret < 0) {
269 dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
270 return ret;
271 }
272
273 return 0;
274}
275
276static int cht_aif1_startup(struct snd_pcm_substream *substream)
277{
278 return snd_pcm_hw_constraint_single(substream->runtime,
279 SNDRV_PCM_HW_PARAM_RATE, 48000);
280}
281
282static const struct snd_soc_ops cht_aif1_ops = {
283 .startup = cht_aif1_startup,
284};
285
286static const struct snd_soc_ops cht_be_ssp2_ops = {
287 .hw_params = cht_aif1_hw_params,
288};
289
290SND_SOC_DAILINK_DEF(dummy,
291 DAILINK_COMP_ARRAY(COMP_DUMMY()));
292
293SND_SOC_DAILINK_DEF(media,
294 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
295
296SND_SOC_DAILINK_DEF(deepbuffer,
297 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
298
299SND_SOC_DAILINK_DEF(ssp2_port,
300 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
301SND_SOC_DAILINK_DEF(ssp2_codec,
302 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5670:00",
303 "rt5670-aif1")));
304
305SND_SOC_DAILINK_DEF(platform,
306 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
307
308static struct snd_soc_dai_link cht_dailink[] = {
309
310 [MERR_DPCM_AUDIO] = {
311 .name = "Audio Port",
312 .stream_name = "Audio",
313 .nonatomic = true,
314 .dynamic = 1,
315 .dpcm_playback = 1,
316 .dpcm_capture = 1,
317 .ops = &cht_aif1_ops,
318 SND_SOC_DAILINK_REG(media, dummy, platform),
319 },
320 [MERR_DPCM_DEEP_BUFFER] = {
321 .name = "Deep-Buffer Audio Port",
322 .stream_name = "Deep-Buffer Audio",
323 .nonatomic = true,
324 .dynamic = 1,
325 .dpcm_playback = 1,
326 .ops = &cht_aif1_ops,
327 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
328 },
329
330
331 {
332
333 .name = "SSP2-Codec",
334 .id = 0,
335 .no_pcm = 1,
336 .nonatomic = true,
337 .init = cht_codec_init,
338 .be_hw_params_fixup = cht_codec_fixup,
339 .dpcm_playback = 1,
340 .dpcm_capture = 1,
341 .ops = &cht_be_ssp2_ops,
342 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
343 },
344};
345
346static int cht_suspend_pre(struct snd_soc_card *card)
347{
348 struct snd_soc_component *component;
349 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
350
351 for_each_card_components(card, component) {
352 if (!strncmp(component->name,
353 ctx->codec_name, sizeof(ctx->codec_name))) {
354
355 dev_dbg(component->dev, "disabling jack detect before going to suspend.\n");
356 rt5670_jack_suspend(component);
357 break;
358 }
359 }
360 return 0;
361}
362
363static int cht_resume_post(struct snd_soc_card *card)
364{
365 struct snd_soc_component *component;
366 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
367
368 for_each_card_components(card, component) {
369 if (!strncmp(component->name,
370 ctx->codec_name, sizeof(ctx->codec_name))) {
371
372 dev_dbg(component->dev, "enabling jack detect for resume.\n");
373 rt5670_jack_resume(component);
374 break;
375 }
376 }
377
378 return 0;
379}
380
381
382static struct snd_soc_card snd_soc_card_cht = {
383 .name = "cht-bsw-rt5672",
384 .owner = THIS_MODULE,
385 .dai_link = cht_dailink,
386 .num_links = ARRAY_SIZE(cht_dailink),
387 .dapm_widgets = cht_dapm_widgets,
388 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
389 .dapm_routes = cht_audio_map,
390 .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
391 .controls = cht_mc_controls,
392 .num_controls = ARRAY_SIZE(cht_mc_controls),
393 .suspend_pre = cht_suspend_pre,
394 .resume_post = cht_resume_post,
395};
396
397#define RT5672_I2C_DEFAULT "i2c-10EC5670:00"
398
399static int snd_cht_mc_probe(struct platform_device *pdev)
400{
401 int ret_val = 0;
402 struct cht_mc_private *drv;
403 struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
404 const char *platform_name;
405 struct acpi_device *adev;
406 int i;
407
408 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
409 if (!drv)
410 return -ENOMEM;
411
412 strcpy(drv->codec_name, RT5672_I2C_DEFAULT);
413
414
415 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
416 if (adev) {
417 snprintf(drv->codec_name, sizeof(drv->codec_name),
418 "i2c-%s", acpi_dev_name(adev));
419 put_device(&adev->dev);
420 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
421 if (!strcmp(cht_dailink[i].codecs->name,
422 RT5672_I2C_DEFAULT)) {
423 cht_dailink[i].codecs->name = drv->codec_name;
424 break;
425 }
426 }
427 }
428
429
430 snd_soc_card_cht.dev = &pdev->dev;
431 platform_name = mach->mach_params.platform;
432
433 ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
434 platform_name);
435 if (ret_val)
436 return ret_val;
437
438 drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
439 if (IS_ERR(drv->mclk)) {
440 dev_err(&pdev->dev,
441 "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
442 PTR_ERR(drv->mclk));
443 return PTR_ERR(drv->mclk);
444 }
445 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
446
447
448 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
449 if (ret_val) {
450 dev_err(&pdev->dev,
451 "snd_soc_register_card failed %d\n", ret_val);
452 return ret_val;
453 }
454 platform_set_drvdata(pdev, &snd_soc_card_cht);
455 return ret_val;
456}
457
458static struct platform_driver snd_cht_mc_driver = {
459 .driver = {
460 .name = "cht-bsw-rt5672",
461 },
462 .probe = snd_cht_mc_probe,
463};
464
465module_platform_driver(snd_cht_mc_driver);
466
467MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
468MODULE_AUTHOR("Subhransu S. Prusty, Mengdong Lin");
469MODULE_LICENSE("GPL v2");
470MODULE_ALIAS("platform:cht-bsw-rt5672");
471
