Merge remote-tracking branch 'asoc/fix/intel' into asoc-linus
[sfrench/cifs-2.6.git] / sound / soc / intel / boards / bytcr_rt5640.c
1 /*
2  *  byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
3  *
4  *  Copyright (C) 2014 Intel Corp
5  *  Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
6  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU General Public License as published by
10  *  the Free Software Foundation; version 2 of the License.
11  *
12  *  This program is distributed in the hope that it will be useful, but
13  *  WITHOUT ANY WARRANTY; without even the implied warranty of
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  *  General Public License for more details.
16  *
17  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
18  */
19
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/platform_device.h>
23 #include <linux/acpi.h>
24 #include <linux/device.h>
25 #include <linux/dmi.h>
26 #include <linux/slab.h>
27 #include <asm/cpu_device_id.h>
28 #include <asm/platform_sst_audio.h>
29 #include <linux/clk.h>
30 #include <sound/pcm.h>
31 #include <sound/pcm_params.h>
32 #include <sound/soc.h>
33 #include <sound/jack.h>
34 #include "../../codecs/rt5640.h"
35 #include "../atom/sst-atom-controls.h"
36 #include "../common/sst-acpi.h"
37 #include "../common/sst-dsp.h"
38
39 enum {
40         BYT_RT5640_DMIC1_MAP,
41         BYT_RT5640_DMIC2_MAP,
42         BYT_RT5640_IN1_MAP,
43         BYT_RT5640_IN3_MAP,
44 };
45
46 #define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
47 #define BYT_RT5640_DMIC_EN      BIT(16)
48 #define BYT_RT5640_MONO_SPEAKER BIT(17)
49 #define BYT_RT5640_DIFF_MIC     BIT(18) /* defaut is single-ended */
50 #define BYT_RT5640_SSP2_AIF2     BIT(19) /* default is using AIF1  */
51 #define BYT_RT5640_SSP0_AIF1     BIT(20)
52 #define BYT_RT5640_SSP0_AIF2     BIT(21)
53 #define BYT_RT5640_MCLK_EN      BIT(22)
54 #define BYT_RT5640_MCLK_25MHZ   BIT(23)
55
56 struct byt_rt5640_private {
57         struct clk *mclk;
58 };
59
60 static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
61
62 static void log_quirks(struct device *dev)
63 {
64         if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_DMIC1_MAP)
65                 dev_info(dev, "quirk DMIC1_MAP enabled");
66         if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_DMIC2_MAP)
67                 dev_info(dev, "quirk DMIC2_MAP enabled");
68         if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_IN1_MAP)
69                 dev_info(dev, "quirk IN1_MAP enabled");
70         if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_IN3_MAP)
71                 dev_info(dev, "quirk IN3_MAP enabled");
72         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN)
73                 dev_info(dev, "quirk DMIC enabled");
74         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
75                 dev_info(dev, "quirk MONO_SPEAKER enabled");
76         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
77                 dev_info(dev, "quirk DIFF_MIC enabled");
78         if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2)
79                 dev_info(dev, "quirk SSP2_AIF2 enabled");
80         if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1)
81                 dev_info(dev, "quirk SSP0_AIF1 enabled");
82         if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)
83                 dev_info(dev, "quirk SSP0_AIF2 enabled");
84         if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
85                 dev_info(dev, "quirk MCLK_EN enabled");
86         if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
87                 dev_info(dev, "quirk MCLK_25MHZ enabled");
88 }
89
90
91 #define BYT_CODEC_DAI1  "rt5640-aif1"
92 #define BYT_CODEC_DAI2  "rt5640-aif2"
93
94 static inline struct snd_soc_dai *byt_get_codec_dai(struct snd_soc_card *card)
95 {
96         struct snd_soc_pcm_runtime *rtd;
97
98         list_for_each_entry(rtd, &card->rtd_list, list) {
99                 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI1,
100                              strlen(BYT_CODEC_DAI1)))
101                         return rtd->codec_dai;
102                 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI2,
103                                 strlen(BYT_CODEC_DAI2)))
104                         return rtd->codec_dai;
105
106         }
107         return NULL;
108 }
109
110 static int platform_clock_control(struct snd_soc_dapm_widget *w,
111                                   struct snd_kcontrol *k, int  event)
112 {
113         struct snd_soc_dapm_context *dapm = w->dapm;
114         struct snd_soc_card *card = dapm->card;
115         struct snd_soc_dai *codec_dai;
116         struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
117         int ret;
118
119         codec_dai = byt_get_codec_dai(card);
120         if (!codec_dai) {
121                 dev_err(card->dev,
122                         "Codec dai not found; Unable to set platform clock\n");
123                 return -EIO;
124         }
125
126         if (SND_SOC_DAPM_EVENT_ON(event)) {
127                 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
128                         ret = clk_prepare_enable(priv->mclk);
129                         if (ret < 0) {
130                                 dev_err(card->dev,
131                                         "could not configure MCLK state");
132                                 return ret;
133                         }
134                 }
135                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
136                                              48000 * 512,
137                                              SND_SOC_CLOCK_IN);
138         } else {
139                 /*
140                  * Set codec clock source to internal clock before
141                  * turning off the platform clock. Codec needs clock
142                  * for Jack detection and button press
143                  */
144                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
145                                              48000 * 512,
146                                              SND_SOC_CLOCK_IN);
147                 if (!ret) {
148                         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk)
149                                 clk_disable_unprepare(priv->mclk);
150                 }
151         }
152
153         if (ret < 0) {
154                 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
155                 return ret;
156         }
157
158         return 0;
159 }
160
161 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
162         SND_SOC_DAPM_HP("Headphone", NULL),
163         SND_SOC_DAPM_MIC("Headset Mic", NULL),
164         SND_SOC_DAPM_MIC("Internal Mic", NULL),
165         SND_SOC_DAPM_SPK("Speaker", NULL),
166         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
167                             platform_clock_control, SND_SOC_DAPM_PRE_PMU |
168                             SND_SOC_DAPM_POST_PMD),
169
170 };
171
172 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
173         {"Headphone", NULL, "Platform Clock"},
174         {"Headset Mic", NULL, "Platform Clock"},
175         {"Internal Mic", NULL, "Platform Clock"},
176         {"Speaker", NULL, "Platform Clock"},
177
178         {"Headset Mic", NULL, "MICBIAS1"},
179         {"IN2P", NULL, "Headset Mic"},
180         {"Headphone", NULL, "HPOL"},
181         {"Headphone", NULL, "HPOR"},
182 };
183
184 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
185         {"DMIC1", NULL, "Internal Mic"},
186 };
187
188 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
189         {"DMIC2", NULL, "Internal Mic"},
190 };
191
192 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
193         {"Internal Mic", NULL, "MICBIAS1"},
194         {"IN1P", NULL, "Internal Mic"},
195 };
196
197 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
198         {"Internal Mic", NULL, "MICBIAS1"},
199         {"IN3P", NULL, "Internal Mic"},
200 };
201
202 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
203         {"ssp2 Tx", NULL, "codec_out0"},
204         {"ssp2 Tx", NULL, "codec_out1"},
205         {"codec_in0", NULL, "ssp2 Rx"},
206         {"codec_in1", NULL, "ssp2 Rx"},
207
208         {"AIF1 Playback", NULL, "ssp2 Tx"},
209         {"ssp2 Rx", NULL, "AIF1 Capture"},
210 };
211
212 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
213         {"ssp2 Tx", NULL, "codec_out0"},
214         {"ssp2 Tx", NULL, "codec_out1"},
215         {"codec_in0", NULL, "ssp2 Rx"},
216         {"codec_in1", NULL, "ssp2 Rx"},
217
218         {"AIF2 Playback", NULL, "ssp2 Tx"},
219         {"ssp2 Rx", NULL, "AIF2 Capture"},
220 };
221
222 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
223         {"ssp0 Tx", NULL, "modem_out"},
224         {"modem_in", NULL, "ssp0 Rx"},
225
226         {"AIF1 Playback", NULL, "ssp0 Tx"},
227         {"ssp0 Rx", NULL, "AIF1 Capture"},
228 };
229
230 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
231         {"ssp0 Tx", NULL, "modem_out"},
232         {"modem_in", NULL, "ssp0 Rx"},
233
234         {"AIF2 Playback", NULL, "ssp0 Tx"},
235         {"ssp0 Rx", NULL, "AIF2 Capture"},
236 };
237
238 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
239         {"Speaker", NULL, "SPOLP"},
240         {"Speaker", NULL, "SPOLN"},
241         {"Speaker", NULL, "SPORP"},
242         {"Speaker", NULL, "SPORN"},
243 };
244
245 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
246         {"Speaker", NULL, "SPOLP"},
247         {"Speaker", NULL, "SPOLN"},
248 };
249
250 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
251         SOC_DAPM_PIN_SWITCH("Headphone"),
252         SOC_DAPM_PIN_SWITCH("Headset Mic"),
253         SOC_DAPM_PIN_SWITCH("Internal Mic"),
254         SOC_DAPM_PIN_SWITCH("Speaker"),
255 };
256
257 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
258                                         struct snd_pcm_hw_params *params)
259 {
260         struct snd_soc_pcm_runtime *rtd = substream->private_data;
261         struct snd_soc_dai *codec_dai = rtd->codec_dai;
262         int ret;
263
264         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
265                                      params_rate(params) * 512,
266                                      SND_SOC_CLOCK_IN);
267
268         if (ret < 0) {
269                 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
270                 return ret;
271         }
272
273         if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
274                 /* use bitclock as PLL input */
275                 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
276                         (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
277
278                         /* 2x16 bit slots on SSP0 */
279                         ret = snd_soc_dai_set_pll(codec_dai, 0,
280                                                 RT5640_PLL1_S_BCLK1,
281                                                 params_rate(params) * 32,
282                                                 params_rate(params) * 512);
283                 } else {
284                         /* 2x15 bit slots on SSP2 */
285                         ret = snd_soc_dai_set_pll(codec_dai, 0,
286                                                 RT5640_PLL1_S_BCLK1,
287                                                 params_rate(params) * 50,
288                                                 params_rate(params) * 512);
289                 }
290         } else {
291                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
292                         ret = snd_soc_dai_set_pll(codec_dai, 0,
293                                                 RT5640_PLL1_S_MCLK,
294                                                 25000000,
295                                                 params_rate(params) * 512);
296                 } else {
297                         ret = snd_soc_dai_set_pll(codec_dai, 0,
298                                                 RT5640_PLL1_S_MCLK,
299                                                 19200000,
300                                                 params_rate(params) * 512);
301                 }
302         }
303
304         if (ret < 0) {
305                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
306                 return ret;
307         }
308
309         return 0;
310 }
311
312 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
313 {
314         byt_rt5640_quirk = (unsigned long)id->driver_data;
315         return 1;
316 }
317
318 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
319         {
320                 .callback = byt_rt5640_quirk_cb,
321                 .matches = {
322                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
323                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
324                 },
325                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
326                                                  BYT_RT5640_MCLK_EN),
327         },
328         {
329                 .callback = byt_rt5640_quirk_cb,
330                 .matches = {
331                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
332                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
333                 },
334                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
335                                                  BYT_RT5640_MONO_SPEAKER |
336                                                  BYT_RT5640_DIFF_MIC |
337                                                  BYT_RT5640_SSP0_AIF2 |
338                                                  BYT_RT5640_MCLK_EN
339                                                  ),
340         },
341         {
342                 .callback = byt_rt5640_quirk_cb,
343                 .matches = {
344                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
345                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
346                 },
347                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
348                                                  BYT_RT5640_DMIC_EN |
349                                                  BYT_RT5640_MCLK_EN),
350         },
351         {
352                 .callback = byt_rt5640_quirk_cb,
353                 .matches = {
354                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
355                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
356                 },
357                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
358                                                  BYT_RT5640_MCLK_EN),
359         },
360         {
361                 .callback = byt_rt5640_quirk_cb,
362                 .matches = {
363                         DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
364                         DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
365                 },
366                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC1_MAP |
367                                                  BYT_RT5640_DMIC_EN),
368         },
369         {
370                 .callback = byt_rt5640_quirk_cb,
371                 .matches = {
372                         DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
373                         DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
374                 },
375                 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
376                                                 BYT_RT5640_MCLK_EN |
377                                                 BYT_RT5640_SSP0_AIF1),
378         },
379         {
380                 .callback = byt_rt5640_quirk_cb,
381                 .matches = {
382                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
383                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
384                 },
385                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
386                                                  BYT_RT5640_MCLK_EN |
387                                                  BYT_RT5640_SSP0_AIF1),
388
389         },
390         {}
391 };
392
393 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
394 {
395         int ret;
396         struct snd_soc_codec *codec = runtime->codec;
397         struct snd_soc_card *card = runtime->card;
398         const struct snd_soc_dapm_route *custom_map;
399         struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
400         int num_routes;
401
402         card->dapm.idle_bias_off = true;
403
404         rt5640_sel_asrc_clk_src(codec,
405                                 RT5640_DA_STEREO_FILTER |
406                                 RT5640_DA_MONO_L_FILTER |
407                                 RT5640_DA_MONO_R_FILTER |
408                                 RT5640_AD_STEREO_FILTER |
409                                 RT5640_AD_MONO_L_FILTER |
410                                 RT5640_AD_MONO_R_FILTER,
411                                 RT5640_CLK_SEL_ASRC);
412
413         ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
414                                         ARRAY_SIZE(byt_rt5640_controls));
415         if (ret) {
416                 dev_err(card->dev, "unable to add card controls\n");
417                 return ret;
418         }
419
420         switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
421         case BYT_RT5640_IN1_MAP:
422                 custom_map = byt_rt5640_intmic_in1_map;
423                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
424                 break;
425         case BYT_RT5640_IN3_MAP:
426                 custom_map = byt_rt5640_intmic_in3_map;
427                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
428                 break;
429         case BYT_RT5640_DMIC2_MAP:
430                 custom_map = byt_rt5640_intmic_dmic2_map;
431                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
432                 break;
433         default:
434                 custom_map = byt_rt5640_intmic_dmic1_map;
435                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
436         }
437
438         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
439         if (ret)
440                 return ret;
441
442         if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
443                 ret = snd_soc_dapm_add_routes(&card->dapm,
444                                         byt_rt5640_ssp2_aif2_map,
445                                         ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
446         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
447                 ret = snd_soc_dapm_add_routes(&card->dapm,
448                                         byt_rt5640_ssp0_aif1_map,
449                                         ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
450         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
451                 ret = snd_soc_dapm_add_routes(&card->dapm,
452                                         byt_rt5640_ssp0_aif2_map,
453                                         ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
454         } else {
455                 ret = snd_soc_dapm_add_routes(&card->dapm,
456                                         byt_rt5640_ssp2_aif1_map,
457                                         ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
458         }
459         if (ret)
460                 return ret;
461
462         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
463                 ret = snd_soc_dapm_add_routes(&card->dapm,
464                                         byt_rt5640_mono_spk_map,
465                                         ARRAY_SIZE(byt_rt5640_mono_spk_map));
466         } else {
467                 ret = snd_soc_dapm_add_routes(&card->dapm,
468                                         byt_rt5640_stereo_spk_map,
469                                         ARRAY_SIZE(byt_rt5640_stereo_spk_map));
470         }
471         if (ret)
472                 return ret;
473
474         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
475                 snd_soc_update_bits(codec,  RT5640_IN1_IN2, RT5640_IN_DF1,
476                                     RT5640_IN_DF1);
477         }
478
479         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
480                 ret = rt5640_dmic_enable(codec, 0, 0);
481                 if (ret)
482                         return ret;
483         }
484
485         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
486         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
487
488         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
489                 /*
490                  * The firmware might enable the clock at
491                  * boot (this information may or may not
492                  * be reflected in the enable clock register).
493                  * To change the rate we must disable the clock
494                  * first to cover these cases. Due to common
495                  * clock framework restrictions that do not allow
496                  * to disable a clock that has not been enabled,
497                  * we need to enable the clock first.
498                  */
499                 ret = clk_prepare_enable(priv->mclk);
500                 if (!ret)
501                         clk_disable_unprepare(priv->mclk);
502
503                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
504                         ret = clk_set_rate(priv->mclk, 25000000);
505                 else
506                         ret = clk_set_rate(priv->mclk, 19200000);
507
508                 if (ret)
509                         dev_err(card->dev, "unable to set MCLK rate\n");
510         }
511
512         return ret;
513 }
514
515 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
516         .formats = SNDRV_PCM_FMTBIT_S24_LE,
517         .rate_min = 48000,
518         .rate_max = 48000,
519         .channels_min = 2,
520         .channels_max = 2,
521 };
522
523 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
524                             struct snd_pcm_hw_params *params)
525 {
526         struct snd_interval *rate = hw_param_interval(params,
527                         SNDRV_PCM_HW_PARAM_RATE);
528         struct snd_interval *channels = hw_param_interval(params,
529                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
530         int ret;
531
532         /* The DSP will covert the FE rate to 48k, stereo */
533         rate->min = rate->max = 48000;
534         channels->min = channels->max = 2;
535
536         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
537                 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
538
539                 /* set SSP0 to 16-bit */
540                 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
541
542                 /*
543                  * Default mode for SSP configuration is TDM 4 slot, override config
544                  * with explicit setting to I2S 2ch 16-bit. The word length is set with
545                  * dai_set_tdm_slot() since there is no other API exposed
546                  */
547                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
548                                         SND_SOC_DAIFMT_I2S     |
549                                         SND_SOC_DAIFMT_NB_NF   |
550                                         SND_SOC_DAIFMT_CBS_CFS
551                         );
552                 if (ret < 0) {
553                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
554                         return ret;
555                 }
556
557                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
558                 if (ret < 0) {
559                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
560                         return ret;
561                 }
562
563         } else {
564
565                 /* set SSP2 to 24-bit */
566                 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
567
568                 /*
569                  * Default mode for SSP configuration is TDM 4 slot, override config
570                  * with explicit setting to I2S 2ch 24-bit. The word length is set with
571                  * dai_set_tdm_slot() since there is no other API exposed
572                  */
573                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
574                                         SND_SOC_DAIFMT_I2S     |
575                                         SND_SOC_DAIFMT_NB_NF   |
576                                         SND_SOC_DAIFMT_CBS_CFS
577                         );
578                 if (ret < 0) {
579                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
580                         return ret;
581                 }
582
583                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
584                 if (ret < 0) {
585                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
586                         return ret;
587                 }
588         }
589         return 0;
590 }
591
592 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
593 {
594         return snd_pcm_hw_constraint_single(substream->runtime,
595                         SNDRV_PCM_HW_PARAM_RATE, 48000);
596 }
597
598 static const struct snd_soc_ops byt_rt5640_aif1_ops = {
599         .startup = byt_rt5640_aif1_startup,
600 };
601
602 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
603         .hw_params = byt_rt5640_aif1_hw_params,
604 };
605
606 static struct snd_soc_dai_link byt_rt5640_dais[] = {
607         [MERR_DPCM_AUDIO] = {
608                 .name = "Baytrail Audio Port",
609                 .stream_name = "Baytrail Audio",
610                 .cpu_dai_name = "media-cpu-dai",
611                 .codec_dai_name = "snd-soc-dummy-dai",
612                 .codec_name = "snd-soc-dummy",
613                 .platform_name = "sst-mfld-platform",
614                 .ignore_suspend = 1,
615                 .dynamic = 1,
616                 .dpcm_playback = 1,
617                 .dpcm_capture = 1,
618                 .ops = &byt_rt5640_aif1_ops,
619         },
620         [MERR_DPCM_DEEP_BUFFER] = {
621                 .name = "Deep-Buffer Audio Port",
622                 .stream_name = "Deep-Buffer Audio",
623                 .cpu_dai_name = "deepbuffer-cpu-dai",
624                 .codec_dai_name = "snd-soc-dummy-dai",
625                 .codec_name = "snd-soc-dummy",
626                 .platform_name = "sst-mfld-platform",
627                 .ignore_suspend = 1,
628                 .nonatomic = true,
629                 .dynamic = 1,
630                 .dpcm_playback = 1,
631                 .ops = &byt_rt5640_aif1_ops,
632         },
633         [MERR_DPCM_COMPR] = {
634                 .name = "Baytrail Compressed Port",
635                 .stream_name = "Baytrail Compress",
636                 .cpu_dai_name = "compress-cpu-dai",
637                 .codec_dai_name = "snd-soc-dummy-dai",
638                 .codec_name = "snd-soc-dummy",
639                 .platform_name = "sst-mfld-platform",
640         },
641                 /* back ends */
642         {
643                 .name = "SSP2-Codec",
644                 .id = 1,
645                 .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
646                 .platform_name = "sst-mfld-platform",
647                 .no_pcm = 1,
648                 .codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
649                 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
650                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
651                                                 | SND_SOC_DAIFMT_CBS_CFS,
652                 .be_hw_params_fixup = byt_rt5640_codec_fixup,
653                 .ignore_suspend = 1,
654                 .dpcm_playback = 1,
655                 .dpcm_capture = 1,
656                 .init = byt_rt5640_init,
657                 .ops = &byt_rt5640_be_ssp2_ops,
658         },
659 };
660
661 /* SoC card */
662 static struct snd_soc_card byt_rt5640_card = {
663         .name = "bytcr-rt5640",
664         .owner = THIS_MODULE,
665         .dai_link = byt_rt5640_dais,
666         .num_links = ARRAY_SIZE(byt_rt5640_dais),
667         .dapm_widgets = byt_rt5640_widgets,
668         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
669         .dapm_routes = byt_rt5640_audio_map,
670         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
671         .fully_routed = true,
672 };
673
674 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
675 static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
676 static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
677
678 static bool is_valleyview(void)
679 {
680         static const struct x86_cpu_id cpu_ids[] = {
681                 { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
682                 {}
683         };
684
685         if (!x86_match_cpu(cpu_ids))
686                 return false;
687         return true;
688 }
689
690 struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
691         u64 aif_value;       /* 1: AIF1, 2: AIF2 */
692         u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
693 };
694
695 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
696 {
697         int ret_val = 0;
698         struct sst_acpi_mach *mach;
699         const char *i2c_name = NULL;
700         int i;
701         int dai_index;
702         struct byt_rt5640_private *priv;
703         bool is_bytcr = false;
704
705         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
706         if (!priv)
707                 return -ENOMEM;
708
709         /* register the soc card */
710         byt_rt5640_card.dev = &pdev->dev;
711         mach = byt_rt5640_card.dev->platform_data;
712         snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
713
714         /* fix index of codec dai */
715         dai_index = MERR_DPCM_COMPR + 1;
716         for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
717                 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
718                         dai_index = i;
719                         break;
720                 }
721         }
722
723         /* fixup codec name based on HID */
724         i2c_name = sst_acpi_find_name_from_hid(mach->id);
725         if (i2c_name != NULL) {
726                 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
727                         "%s%s", "i2c-", i2c_name);
728
729                 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
730         }
731
732         /*
733          * swap SSP0 if bytcr is detected
734          * (will be overridden if DMI quirk is detected)
735          */
736         if (is_valleyview()) {
737                 struct sst_platform_info *p_info = mach->pdata;
738                 const struct sst_res_info *res_info = p_info->res_info;
739
740                 if (res_info->acpi_ipc_irq_index == 0)
741                         is_bytcr = true;
742         }
743
744         if (is_bytcr) {
745                 /*
746                  * Baytrail CR platforms may have CHAN package in BIOS, try
747                  * to find relevant routing quirk based as done on Windows
748                  * platforms. We have to read the information directly from the
749                  * BIOS, at this stage the card is not created and the links
750                  * with the codec driver/pdata are non-existent
751                  */
752
753                 struct acpi_chan_package chan_package;
754
755                 /* format specified: 2 64-bit integers */
756                 struct acpi_buffer format = {sizeof("NN"), "NN"};
757                 struct acpi_buffer state = {0, NULL};
758                 struct sst_acpi_package_context pkg_ctx;
759                 bool pkg_found = false;
760
761                 state.length = sizeof(chan_package);
762                 state.pointer = &chan_package;
763
764                 pkg_ctx.name = "CHAN";
765                 pkg_ctx.length = 2;
766                 pkg_ctx.format = &format;
767                 pkg_ctx.state = &state;
768                 pkg_ctx.data_valid = false;
769
770                 pkg_found = sst_acpi_find_package_from_hid(mach->id, &pkg_ctx);
771                 if (pkg_found) {
772                         if (chan_package.aif_value == 1) {
773                                 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
774                                 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
775                         } else  if (chan_package.aif_value == 2) {
776                                 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
777                                 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
778                         } else {
779                                 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
780                                 pkg_found = false;
781                         }
782                 }
783
784                 if (!pkg_found) {
785                         /* no BIOS indications, assume SSP0-AIF2 connection */
786                         byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
787                 }
788
789                 /* change defaults for Baytrail-CR capture */
790                 byt_rt5640_quirk |= BYT_RT5640_IN1_MAP;
791                 byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
792         } else {
793                 byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP |
794                                 BYT_RT5640_DMIC_EN);
795         }
796
797         /* check quirks before creating card */
798         dmi_check_system(byt_rt5640_quirk_table);
799         log_quirks(&pdev->dev);
800
801         if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
802             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
803
804                 /* fixup codec aif name */
805                 snprintf(byt_rt5640_codec_aif_name,
806                         sizeof(byt_rt5640_codec_aif_name),
807                         "%s", "rt5640-aif2");
808
809                 byt_rt5640_dais[dai_index].codec_dai_name =
810                         byt_rt5640_codec_aif_name;
811         }
812
813         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
814             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
815
816                 /* fixup cpu dai name name */
817                 snprintf(byt_rt5640_cpu_dai_name,
818                         sizeof(byt_rt5640_cpu_dai_name),
819                         "%s", "ssp0-port");
820
821                 byt_rt5640_dais[dai_index].cpu_dai_name =
822                         byt_rt5640_cpu_dai_name;
823         }
824
825         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && (is_valleyview())) {
826                 priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
827                 if (IS_ERR(priv->mclk)) {
828                         ret_val = PTR_ERR(priv->mclk);
829
830                         dev_err(&pdev->dev,
831                                 "Failed to get MCLK from pmc_plt_clk_3: %d\n",
832                                 ret_val);
833
834                         /*
835                          * Fall back to bit clock usage for -ENOENT (clock not
836                          * available likely due to missing dependencies), bail
837                          * for all other errors, including -EPROBE_DEFER
838                          */
839                         if (ret_val != -ENOENT)
840                                 return ret_val;
841                         byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
842                 }
843         }
844
845         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
846
847         if (ret_val) {
848                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
849                         ret_val);
850                 return ret_val;
851         }
852         platform_set_drvdata(pdev, &byt_rt5640_card);
853         return ret_val;
854 }
855
856 static struct platform_driver snd_byt_rt5640_mc_driver = {
857         .driver = {
858                 .name = "bytcr_rt5640",
859         },
860         .probe = snd_byt_rt5640_mc_probe,
861 };
862
863 module_platform_driver(snd_byt_rt5640_mc_driver);
864
865 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
866 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
867 MODULE_LICENSE("GPL v2");
868 MODULE_ALIAS("platform:bytcr_rt5640");