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19#include <linux/module.h>
20#include <linux/platform_device.h>
21#include <linux/slab.h>
22#include <linux/clk.h>
23#include <asm/cpu_device_id.h>
24#include <sound/pcm.h>
25#include <sound/pcm_params.h>
26#include <sound/soc.h>
27#include <sound/jack.h>
28#include "../../codecs/rt5670.h"
29#include "../atom/sst-atom-controls.h"
30#include "../common/sst-acpi.h"
31
32
33#define CHT_PLAT_CLK_3_HZ 19200000
34#define CHT_CODEC_DAI "rt5670-aif1"
35
36struct cht_mc_private {
37 struct snd_soc_jack headset;
38 char codec_name[16];
39 struct clk *mclk;
40};
41
42
43static struct snd_soc_jack_pin cht_bsw_headset_pins[] = {
44 {
45 .pin = "Headset Mic",
46 .mask = SND_JACK_MICROPHONE,
47 },
48 {
49 .pin = "Headphone",
50 .mask = SND_JACK_HEADPHONE,
51 },
52};
53
54static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
55{
56 struct snd_soc_pcm_runtime *rtd;
57
58 list_for_each_entry(rtd, &card->rtd_list, list) {
59 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
60 strlen(CHT_CODEC_DAI)))
61 return rtd->codec_dai;
62 }
63 return NULL;
64}
65
66static int platform_clock_control(struct snd_soc_dapm_widget *w,
67 struct snd_kcontrol *k, int event)
68{
69 struct snd_soc_dapm_context *dapm = w->dapm;
70 struct snd_soc_card *card = dapm->card;
71 struct snd_soc_dai *codec_dai;
72 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
73 int ret;
74
75 codec_dai = cht_get_codec_dai(card);
76 if (!codec_dai) {
77 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
78 return -EIO;
79 }
80
81 if (SND_SOC_DAPM_EVENT_ON(event)) {
82 if (ctx->mclk) {
83 ret = clk_prepare_enable(ctx->mclk);
84 if (ret < 0) {
85 dev_err(card->dev,
86 "could not configure MCLK state");
87 return ret;
88 }
89 }
90
91
92 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
93 CHT_PLAT_CLK_3_HZ, 48000 * 512);
94 if (ret < 0) {
95 dev_err(card->dev, "can't set codec pll: %d\n", ret);
96 return ret;
97 }
98
99
100 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
101 48000 * 512, SND_SOC_CLOCK_IN);
102 if (ret < 0) {
103 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
104 return ret;
105 }
106 } else {
107
108
109
110
111
112 snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_RCCLK,
113 48000 * 512, SND_SOC_CLOCK_IN);
114
115 if (ctx->mclk)
116 clk_disable_unprepare(ctx->mclk);
117 }
118 return 0;
119}
120
121static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
122 SND_SOC_DAPM_HP("Headphone", NULL),
123 SND_SOC_DAPM_MIC("Headset Mic", NULL),
124 SND_SOC_DAPM_MIC("Int Mic", NULL),
125 SND_SOC_DAPM_SPK("Ext Spk", NULL),
126 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
127 platform_clock_control, SND_SOC_DAPM_PRE_PMU |
128 SND_SOC_DAPM_POST_PMD),
129};
130
131static const struct snd_soc_dapm_route cht_audio_map[] = {
132 {"IN1P", NULL, "Headset Mic"},
133 {"IN1N", NULL, "Headset Mic"},
134 {"DMIC L1", NULL, "Int Mic"},
135 {"DMIC R1", NULL, "Int Mic"},
136 {"Headphone", NULL, "HPOL"},
137 {"Headphone", NULL, "HPOR"},
138 {"Ext Spk", NULL, "SPOLP"},
139 {"Ext Spk", NULL, "SPOLN"},
140 {"Ext Spk", NULL, "SPORP"},
141 {"Ext Spk", NULL, "SPORN"},
142 {"AIF1 Playback", NULL, "ssp2 Tx"},
143 {"ssp2 Tx", NULL, "codec_out0"},
144 {"ssp2 Tx", NULL, "codec_out1"},
145 {"codec_in0", NULL, "ssp2 Rx"},
146 {"codec_in1", NULL, "ssp2 Rx"},
147 {"ssp2 Rx", NULL, "AIF1 Capture"},
148 {"Headphone", NULL, "Platform Clock"},
149 {"Headset Mic", NULL, "Platform Clock"},
150 {"Int Mic", NULL, "Platform Clock"},
151 {"Ext Spk", NULL, "Platform Clock"},
152};
153
154static const struct snd_kcontrol_new cht_mc_controls[] = {
155 SOC_DAPM_PIN_SWITCH("Headphone"),
156 SOC_DAPM_PIN_SWITCH("Headset Mic"),
157 SOC_DAPM_PIN_SWITCH("Int Mic"),
158 SOC_DAPM_PIN_SWITCH("Ext Spk"),
159};
160
161static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
162 struct snd_pcm_hw_params *params)
163{
164 struct snd_soc_pcm_runtime *rtd = substream->private_data;
165 struct snd_soc_dai *codec_dai = rtd->codec_dai;
166 int ret;
167
168
169 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
170 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
171 if (ret < 0) {
172 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
173 return ret;
174 }
175
176
177 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
178 params_rate(params) * 512,
179 SND_SOC_CLOCK_IN);
180 if (ret < 0) {
181 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
182 return ret;
183 }
184 return 0;
185}
186
187static const struct acpi_gpio_params headset_gpios = { 0, 0, false };
188
189static const struct acpi_gpio_mapping cht_rt5672_gpios[] = {
190 { "headset-gpios", &headset_gpios, 1 },
191 {},
192};
193
194static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
195{
196 int ret;
197 struct snd_soc_dai *codec_dai = runtime->codec_dai;
198 struct snd_soc_codec *codec = codec_dai->codec;
199 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
200
201 if (devm_acpi_dev_add_driver_gpios(codec->dev, cht_rt5672_gpios))
202 dev_warn(runtime->dev, "Unable to add GPIO mapping table\n");
203
204
205 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
206 if (ret < 0) {
207 dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret);
208 return ret;
209 }
210
211
212
213
214
215
216 rt5670_sel_asrc_clk_src(codec,
217 RT5670_DA_STEREO_FILTER
218 | RT5670_DA_MONO_L_FILTER
219 | RT5670_DA_MONO_R_FILTER
220 | RT5670_AD_STEREO_FILTER
221 | RT5670_AD_MONO_L_FILTER
222 | RT5670_AD_MONO_R_FILTER,
223 RT5670_CLK_SEL_I2S1_ASRC);
224
225 ret = snd_soc_card_jack_new(runtime->card, "Headset",
226 SND_JACK_HEADSET | SND_JACK_BTN_0 |
227 SND_JACK_BTN_1 | SND_JACK_BTN_2,
228 &ctx->headset,
229 cht_bsw_headset_pins,
230 ARRAY_SIZE(cht_bsw_headset_pins));
231 if (ret)
232 return ret;
233
234 rt5670_set_jack_detect(codec, &ctx->headset);
235 if (ctx->mclk) {
236
237
238
239
240
241
242
243
244
245
246 ret = clk_prepare_enable(ctx->mclk);
247 if (!ret)
248 clk_disable_unprepare(ctx->mclk);
249
250 ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
251
252 if (ret) {
253 dev_err(runtime->dev, "unable to set MCLK rate\n");
254 return ret;
255 }
256 }
257 return 0;
258}
259
260static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
261 struct snd_pcm_hw_params *params)
262{
263 struct snd_interval *rate = hw_param_interval(params,
264 SNDRV_PCM_HW_PARAM_RATE);
265 struct snd_interval *channels = hw_param_interval(params,
266 SNDRV_PCM_HW_PARAM_CHANNELS);
267
268
269 rate->min = rate->max = 48000;
270 channels->min = channels->max = 2;
271
272
273 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
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
291static struct snd_soc_dai_link cht_dailink[] = {
292
293 [MERR_DPCM_AUDIO] = {
294 .name = "Audio Port",
295 .stream_name = "Audio",
296 .cpu_dai_name = "media-cpu-dai",
297 .codec_dai_name = "snd-soc-dummy-dai",
298 .codec_name = "snd-soc-dummy",
299 .platform_name = "sst-mfld-platform",
300 .nonatomic = true,
301 .dynamic = 1,
302 .dpcm_playback = 1,
303 .dpcm_capture = 1,
304 .ops = &cht_aif1_ops,
305 },
306 [MERR_DPCM_DEEP_BUFFER] = {
307 .name = "Deep-Buffer Audio Port",
308 .stream_name = "Deep-Buffer Audio",
309 .cpu_dai_name = "deepbuffer-cpu-dai",
310 .codec_dai_name = "snd-soc-dummy-dai",
311 .codec_name = "snd-soc-dummy",
312 .platform_name = "sst-mfld-platform",
313 .nonatomic = true,
314 .dynamic = 1,
315 .dpcm_playback = 1,
316 .ops = &cht_aif1_ops,
317 },
318 [MERR_DPCM_COMPR] = {
319 .name = "Compressed Port",
320 .stream_name = "Compress",
321 .cpu_dai_name = "compress-cpu-dai",
322 .codec_dai_name = "snd-soc-dummy-dai",
323 .codec_name = "snd-soc-dummy",
324 .platform_name = "sst-mfld-platform",
325 },
326
327
328 {
329
330 .name = "SSP2-Codec",
331 .id = 1,
332 .cpu_dai_name = "ssp2-port",
333 .platform_name = "sst-mfld-platform",
334 .no_pcm = 1,
335 .nonatomic = true,
336 .codec_dai_name = "rt5670-aif1",
337 .codec_name = "i2c-10EC5670:00",
338 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
339 | SND_SOC_DAIFMT_CBS_CFS,
340 .init = cht_codec_init,
341 .be_hw_params_fixup = cht_codec_fixup,
342 .dpcm_playback = 1,
343 .dpcm_capture = 1,
344 .ops = &cht_be_ssp2_ops,
345 },
346};
347
348static int cht_suspend_pre(struct snd_soc_card *card)
349{
350 struct snd_soc_component *component;
351
352 list_for_each_entry(component, &card->component_dev_list, card_list) {
353 if (!strcmp(component->name, "i2c-10EC5670:00")) {
354 struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
355
356 dev_dbg(codec->dev, "disabling jack detect before going to suspend.\n");
357 rt5670_jack_suspend(codec);
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
368 list_for_each_entry(component, &card->component_dev_list, card_list) {
369 if (!strcmp(component->name, "i2c-10EC5670:00")) {
370 struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
371
372 dev_dbg(codec->dev, "enabling jack detect for resume.\n");
373 rt5670_jack_resume(codec);
374 break;
375 }
376 }
377
378 return 0;
379}
380
381
382static struct snd_soc_card snd_soc_card_cht = {
383 .name = "cherrytrailcraudio",
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
397static bool is_valleyview(void)
398{
399 static const struct x86_cpu_id cpu_ids[] = {
400 { X86_VENDOR_INTEL, 6, 55 },
401 {}
402 };
403
404 if (!x86_match_cpu(cpu_ids))
405 return false;
406 return true;
407}
408
409#define RT5672_I2C_DEFAULT "i2c-10EC5670:00"
410
411static int snd_cht_mc_probe(struct platform_device *pdev)
412{
413 int ret_val = 0;
414 struct cht_mc_private *drv;
415 struct sst_acpi_mach *mach = pdev->dev.platform_data;
416 const char *i2c_name;
417 int i;
418
419 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
420 if (!drv)
421 return -ENOMEM;
422
423 strcpy(drv->codec_name, RT5672_I2C_DEFAULT);
424
425
426 if (mach) {
427 i2c_name = sst_acpi_find_name_from_hid(mach->id);
428 if (i2c_name) {
429 snprintf(drv->codec_name, sizeof(drv->codec_name),
430 "i2c-%s", i2c_name);
431 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
432 if (!strcmp(cht_dailink[i].codec_name,
433 RT5672_I2C_DEFAULT)) {
434 cht_dailink[i].codec_name =
435 drv->codec_name;
436 break;
437 }
438 }
439 }
440 }
441
442 if (is_valleyview()) {
443 drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
444 if (IS_ERR(drv->mclk)) {
445 dev_err(&pdev->dev,
446 "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
447 PTR_ERR(drv->mclk));
448 return PTR_ERR(drv->mclk);
449 }
450 }
451 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
452
453
454 snd_soc_card_cht.dev = &pdev->dev;
455 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
456 if (ret_val) {
457 dev_err(&pdev->dev,
458 "snd_soc_register_card failed %d\n", ret_val);
459 return ret_val;
460 }
461 platform_set_drvdata(pdev, &snd_soc_card_cht);
462 return ret_val;
463}
464
465static struct platform_driver snd_cht_mc_driver = {
466 .driver = {
467 .name = "cht-bsw-rt5672",
468 },
469 .probe = snd_cht_mc_probe,
470};
471
472module_platform_driver(snd_cht_mc_driver);
473
474MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
475MODULE_AUTHOR("Subhransu S. Prusty, Mengdong Lin");
476MODULE_LICENSE("GPL v2");
477MODULE_ALIAS("platform:cht-bsw-rt5672");
478
