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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 <sound/pcm.h>
24#include <sound/pcm_params.h>
25#include <sound/soc.h>
26#include <sound/jack.h>
27#include <sound/soc-acpi.h>
28#include "../../codecs/rt5670.h"
29#include "../atom/sst-atom-controls.h"
30
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[SND_ACPI_I2C_ID_LEN];
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 int platform_clock_control(struct snd_soc_dapm_widget *w,
55 struct snd_kcontrol *k, int event)
56{
57 struct snd_soc_dapm_context *dapm = w->dapm;
58 struct snd_soc_card *card = dapm->card;
59 struct snd_soc_dai *codec_dai;
60 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
61 int ret;
62
63 codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI);
64 if (!codec_dai) {
65 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
66 return -EIO;
67 }
68
69 if (SND_SOC_DAPM_EVENT_ON(event)) {
70 if (ctx->mclk) {
71 ret = clk_prepare_enable(ctx->mclk);
72 if (ret < 0) {
73 dev_err(card->dev,
74 "could not configure MCLK state");
75 return ret;
76 }
77 }
78
79
80 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
81 CHT_PLAT_CLK_3_HZ, 48000 * 512);
82 if (ret < 0) {
83 dev_err(card->dev, "can't set codec pll: %d\n", ret);
84 return ret;
85 }
86
87
88 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
89 48000 * 512, SND_SOC_CLOCK_IN);
90 if (ret < 0) {
91 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
92 return ret;
93 }
94 } else {
95
96
97
98
99
100 snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_RCCLK,
101 48000 * 512, SND_SOC_CLOCK_IN);
102
103 if (ctx->mclk)
104 clk_disable_unprepare(ctx->mclk);
105 }
106 return 0;
107}
108
109static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
110 SND_SOC_DAPM_HP("Headphone", NULL),
111 SND_SOC_DAPM_MIC("Headset Mic", NULL),
112 SND_SOC_DAPM_MIC("Int Mic", NULL),
113 SND_SOC_DAPM_SPK("Ext Spk", NULL),
114 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
115 platform_clock_control, SND_SOC_DAPM_PRE_PMU |
116 SND_SOC_DAPM_POST_PMD),
117};
118
119static const struct snd_soc_dapm_route cht_audio_map[] = {
120 {"IN1P", NULL, "Headset Mic"},
121 {"IN1N", NULL, "Headset Mic"},
122 {"DMIC L1", NULL, "Int Mic"},
123 {"DMIC R1", NULL, "Int Mic"},
124 {"Headphone", NULL, "HPOL"},
125 {"Headphone", NULL, "HPOR"},
126 {"Ext Spk", NULL, "SPOLP"},
127 {"Ext Spk", NULL, "SPOLN"},
128 {"Ext Spk", NULL, "SPORP"},
129 {"Ext Spk", NULL, "SPORN"},
130 {"AIF1 Playback", NULL, "ssp2 Tx"},
131 {"ssp2 Tx", NULL, "codec_out0"},
132 {"ssp2 Tx", NULL, "codec_out1"},
133 {"codec_in0", NULL, "ssp2 Rx"},
134 {"codec_in1", NULL, "ssp2 Rx"},
135 {"ssp2 Rx", NULL, "AIF1 Capture"},
136 {"Headphone", NULL, "Platform Clock"},
137 {"Headset Mic", NULL, "Platform Clock"},
138 {"Int Mic", NULL, "Platform Clock"},
139 {"Ext Spk", NULL, "Platform Clock"},
140};
141
142static const struct snd_kcontrol_new cht_mc_controls[] = {
143 SOC_DAPM_PIN_SWITCH("Headphone"),
144 SOC_DAPM_PIN_SWITCH("Headset Mic"),
145 SOC_DAPM_PIN_SWITCH("Int Mic"),
146 SOC_DAPM_PIN_SWITCH("Ext Spk"),
147};
148
149static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
150 struct snd_pcm_hw_params *params)
151{
152 struct snd_soc_pcm_runtime *rtd = substream->private_data;
153 struct snd_soc_dai *codec_dai = rtd->codec_dai;
154 int ret;
155
156
157 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
158 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
159 if (ret < 0) {
160 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
161 return ret;
162 }
163
164
165 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
166 params_rate(params) * 512,
167 SND_SOC_CLOCK_IN);
168 if (ret < 0) {
169 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
170 return ret;
171 }
172 return 0;
173}
174
175static const struct acpi_gpio_params headset_gpios = { 0, 0, false };
176
177static const struct acpi_gpio_mapping cht_rt5672_gpios[] = {
178 { "headset-gpios", &headset_gpios, 1 },
179 {},
180};
181
182static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
183{
184 int ret;
185 struct snd_soc_dai *codec_dai = runtime->codec_dai;
186 struct snd_soc_component *component = codec_dai->component;
187 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
188
189 if (devm_acpi_dev_add_driver_gpios(component->dev, cht_rt5672_gpios))
190 dev_warn(runtime->dev, "Unable to add GPIO mapping table\n");
191
192
193 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
194 if (ret < 0) {
195 dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret);
196 return ret;
197 }
198
199
200
201
202
203
204 rt5670_sel_asrc_clk_src(component,
205 RT5670_DA_STEREO_FILTER
206 | RT5670_DA_MONO_L_FILTER
207 | RT5670_DA_MONO_R_FILTER
208 | RT5670_AD_STEREO_FILTER
209 | RT5670_AD_MONO_L_FILTER
210 | RT5670_AD_MONO_R_FILTER,
211 RT5670_CLK_SEL_I2S1_ASRC);
212
213 ret = snd_soc_card_jack_new(runtime->card, "Headset",
214 SND_JACK_HEADSET | SND_JACK_BTN_0 |
215 SND_JACK_BTN_1 | SND_JACK_BTN_2,
216 &ctx->headset,
217 cht_bsw_headset_pins,
218 ARRAY_SIZE(cht_bsw_headset_pins));
219 if (ret)
220 return ret;
221
222 rt5670_set_jack_detect(component, &ctx->headset);
223 if (ctx->mclk) {
224
225
226
227
228
229
230
231
232
233
234 ret = clk_prepare_enable(ctx->mclk);
235 if (!ret)
236 clk_disable_unprepare(ctx->mclk);
237
238 ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
239
240 if (ret) {
241 dev_err(runtime->dev, "unable to set MCLK rate\n");
242 return ret;
243 }
244 }
245 return 0;
246}
247
248static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
249 struct snd_pcm_hw_params *params)
250{
251 struct snd_interval *rate = hw_param_interval(params,
252 SNDRV_PCM_HW_PARAM_RATE);
253 struct snd_interval *channels = hw_param_interval(params,
254 SNDRV_PCM_HW_PARAM_CHANNELS);
255
256
257 rate->min = rate->max = 48000;
258 channels->min = channels->max = 2;
259
260
261 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
262 return 0;
263}
264
265static int cht_aif1_startup(struct snd_pcm_substream *substream)
266{
267 return snd_pcm_hw_constraint_single(substream->runtime,
268 SNDRV_PCM_HW_PARAM_RATE, 48000);
269}
270
271static const struct snd_soc_ops cht_aif1_ops = {
272 .startup = cht_aif1_startup,
273};
274
275static const struct snd_soc_ops cht_be_ssp2_ops = {
276 .hw_params = cht_aif1_hw_params,
277};
278
279static struct snd_soc_dai_link cht_dailink[] = {
280
281 [MERR_DPCM_AUDIO] = {
282 .name = "Audio Port",
283 .stream_name = "Audio",
284 .cpu_dai_name = "media-cpu-dai",
285 .codec_dai_name = "snd-soc-dummy-dai",
286 .codec_name = "snd-soc-dummy",
287 .platform_name = "sst-mfld-platform",
288 .nonatomic = true,
289 .dynamic = 1,
290 .dpcm_playback = 1,
291 .dpcm_capture = 1,
292 .ops = &cht_aif1_ops,
293 },
294 [MERR_DPCM_DEEP_BUFFER] = {
295 .name = "Deep-Buffer Audio Port",
296 .stream_name = "Deep-Buffer Audio",
297 .cpu_dai_name = "deepbuffer-cpu-dai",
298 .codec_dai_name = "snd-soc-dummy-dai",
299 .codec_name = "snd-soc-dummy",
300 .platform_name = "sst-mfld-platform",
301 .nonatomic = true,
302 .dynamic = 1,
303 .dpcm_playback = 1,
304 .ops = &cht_aif1_ops,
305 },
306
307
308 {
309
310 .name = "SSP2-Codec",
311 .id = 0,
312 .cpu_dai_name = "ssp2-port",
313 .platform_name = "sst-mfld-platform",
314 .no_pcm = 1,
315 .nonatomic = true,
316 .codec_dai_name = "rt5670-aif1",
317 .codec_name = "i2c-10EC5670:00",
318 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
319 | SND_SOC_DAIFMT_CBS_CFS,
320 .init = cht_codec_init,
321 .be_hw_params_fixup = cht_codec_fixup,
322 .dpcm_playback = 1,
323 .dpcm_capture = 1,
324 .ops = &cht_be_ssp2_ops,
325 },
326};
327
328static int cht_suspend_pre(struct snd_soc_card *card)
329{
330 struct snd_soc_component *component;
331 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
332
333 list_for_each_entry(component, &card->component_dev_list, card_list) {
334 if (!strncmp(component->name,
335 ctx->codec_name, sizeof(ctx->codec_name))) {
336
337 dev_dbg(component->dev, "disabling jack detect before going to suspend.\n");
338 rt5670_jack_suspend(component);
339 break;
340 }
341 }
342 return 0;
343}
344
345static int cht_resume_post(struct snd_soc_card *card)
346{
347 struct snd_soc_component *component;
348 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
349
350 list_for_each_entry(component, &card->component_dev_list, card_list) {
351 if (!strncmp(component->name,
352 ctx->codec_name, sizeof(ctx->codec_name))) {
353
354 dev_dbg(component->dev, "enabling jack detect for resume.\n");
355 rt5670_jack_resume(component);
356 break;
357 }
358 }
359
360 return 0;
361}
362
363
364static struct snd_soc_card snd_soc_card_cht = {
365 .name = "cht-bsw-rt5672",
366 .owner = THIS_MODULE,
367 .dai_link = cht_dailink,
368 .num_links = ARRAY_SIZE(cht_dailink),
369 .dapm_widgets = cht_dapm_widgets,
370 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
371 .dapm_routes = cht_audio_map,
372 .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
373 .controls = cht_mc_controls,
374 .num_controls = ARRAY_SIZE(cht_mc_controls),
375 .suspend_pre = cht_suspend_pre,
376 .resume_post = cht_resume_post,
377};
378
379#define RT5672_I2C_DEFAULT "i2c-10EC5670:00"
380
381static int snd_cht_mc_probe(struct platform_device *pdev)
382{
383 int ret_val = 0;
384 struct cht_mc_private *drv;
385 struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
386 const char *i2c_name;
387 int i;
388
389 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
390 if (!drv)
391 return -ENOMEM;
392
393 strcpy(drv->codec_name, RT5672_I2C_DEFAULT);
394
395
396 if (mach) {
397 i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
398 if (i2c_name) {
399 snprintf(drv->codec_name, sizeof(drv->codec_name),
400 "i2c-%s", i2c_name);
401 for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
402 if (!strcmp(cht_dailink[i].codec_name,
403 RT5672_I2C_DEFAULT)) {
404 cht_dailink[i].codec_name =
405 drv->codec_name;
406 break;
407 }
408 }
409 }
410 }
411
412 drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
413 if (IS_ERR(drv->mclk)) {
414 dev_err(&pdev->dev,
415 "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
416 PTR_ERR(drv->mclk));
417 return PTR_ERR(drv->mclk);
418 }
419 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
420
421
422 snd_soc_card_cht.dev = &pdev->dev;
423 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
424 if (ret_val) {
425 dev_err(&pdev->dev,
426 "snd_soc_register_card failed %d\n", ret_val);
427 return ret_val;
428 }
429 platform_set_drvdata(pdev, &snd_soc_card_cht);
430 return ret_val;
431}
432
433static struct platform_driver snd_cht_mc_driver = {
434 .driver = {
435 .name = "cht-bsw-rt5672",
436 },
437 .probe = snd_cht_mc_probe,
438};
439
440module_platform_driver(snd_cht_mc_driver);
441
442MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
443MODULE_AUTHOR("Subhransu S. Prusty, Mengdong Lin");
444MODULE_LICENSE("GPL v2");
445MODULE_ALIAS("platform:cht-bsw-rt5672");
446
