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Linux/sound/soc/intel/boards/bytcr_rt5640.c

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  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 <sound/pcm.h>
 28 #include <sound/pcm_params.h>
 29 #include <sound/soc.h>
 30 #include <sound/jack.h>
 31 #include "../../codecs/rt5640.h"
 32 #include "../atom/sst-atom-controls.h"
 33 #include "../common/sst-acpi.h"
 34 
 35 enum {
 36         BYT_RT5640_DMIC1_MAP,
 37         BYT_RT5640_DMIC2_MAP,
 38         BYT_RT5640_IN1_MAP,
 39 };
 40 
 41 #define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
 42 #define BYT_RT5640_DMIC_EN      BIT(16)
 43 
 44 static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
 45                                         BYT_RT5640_DMIC_EN;
 46 
 47 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
 48         SND_SOC_DAPM_HP("Headphone", NULL),
 49         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 50         SND_SOC_DAPM_MIC("Internal Mic", NULL),
 51         SND_SOC_DAPM_SPK("Speaker", NULL),
 52 };
 53 
 54 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
 55         {"AIF1 Playback", NULL, "ssp2 Tx"},
 56         {"ssp2 Tx", NULL, "codec_out0"},
 57         {"ssp2 Tx", NULL, "codec_out1"},
 58         {"codec_in0", NULL, "ssp2 Rx"},
 59         {"codec_in1", NULL, "ssp2 Rx"},
 60         {"ssp2 Rx", NULL, "AIF1 Capture"},
 61 
 62         {"Headset Mic", NULL, "MICBIAS1"},
 63         {"IN2P", NULL, "Headset Mic"},
 64         {"Headphone", NULL, "HPOL"},
 65         {"Headphone", NULL, "HPOR"},
 66         {"Speaker", NULL, "SPOLP"},
 67         {"Speaker", NULL, "SPOLN"},
 68         {"Speaker", NULL, "SPORP"},
 69         {"Speaker", NULL, "SPORN"},
 70 };
 71 
 72 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
 73         {"DMIC1", NULL, "Internal Mic"},
 74 };
 75 
 76 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
 77         {"DMIC2", NULL, "Internal Mic"},
 78 };
 79 
 80 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
 81         {"Internal Mic", NULL, "MICBIAS1"},
 82         {"IN1P", NULL, "Internal Mic"},
 83 };
 84 
 85 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
 86         SOC_DAPM_PIN_SWITCH("Headphone"),
 87         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 88         SOC_DAPM_PIN_SWITCH("Internal Mic"),
 89         SOC_DAPM_PIN_SWITCH("Speaker"),
 90 };
 91 
 92 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
 93                                         struct snd_pcm_hw_params *params)
 94 {
 95         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 96         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 97         int ret;
 98 
 99         snd_soc_dai_set_bclk_ratio(codec_dai, 50);
100 
101         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
102                                      params_rate(params) * 512,
103                                      SND_SOC_CLOCK_IN);
104         if (ret < 0) {
105                 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
106                 return ret;
107         }
108 
109         ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
110                                   params_rate(params) * 50,
111                                   params_rate(params) * 512);
112         if (ret < 0) {
113                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
114                 return ret;
115         }
116 
117         return 0;
118 }
119 
120 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
121 {
122         byt_rt5640_quirk = (unsigned long)id->driver_data;
123         return 1;
124 }
125 
126 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
127         {
128                 .callback = byt_rt5640_quirk_cb,
129                 .matches = {
130                         DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
131                         DMI_MATCH(DMI_PRODUCT_NAME, "T100TA"),
132                 },
133                 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
134         },
135         {
136                 .callback = byt_rt5640_quirk_cb,
137                 .matches = {
138                         DMI_MATCH(DMI_SYS_VENDOR, "DellInc."),
139                         DMI_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
140                 },
141                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
142                                                  BYT_RT5640_DMIC_EN),
143         },
144         {
145                 .callback = byt_rt5640_quirk_cb,
146                 .matches = {
147                         DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
148                         DMI_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
149                 },
150                 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
151         },
152         {}
153 };
154 
155 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
156 {
157         int ret;
158         struct snd_soc_codec *codec = runtime->codec;
159         struct snd_soc_card *card = runtime->card;
160         const struct snd_soc_dapm_route *custom_map;
161         int num_routes;
162 
163         card->dapm.idle_bias_off = true;
164 
165         rt5640_sel_asrc_clk_src(codec,
166                                 RT5640_DA_STEREO_FILTER |
167                                 RT5640_AD_STEREO_FILTER,
168                                 RT5640_CLK_SEL_ASRC);
169 
170         ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
171                                         ARRAY_SIZE(byt_rt5640_controls));
172         if (ret) {
173                 dev_err(card->dev, "unable to add card controls\n");
174                 return ret;
175         }
176 
177         switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
178         case BYT_RT5640_IN1_MAP:
179                 custom_map = byt_rt5640_intmic_in1_map;
180                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
181                 break;
182         case BYT_RT5640_DMIC2_MAP:
183                 custom_map = byt_rt5640_intmic_dmic2_map;
184                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
185                 break;
186         default:
187                 custom_map = byt_rt5640_intmic_dmic1_map;
188                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
189         }
190 
191         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
192         if (ret)
193                 return ret;
194 
195         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
196                 ret = rt5640_dmic_enable(codec, 0, 0);
197                 if (ret)
198                         return ret;
199         }
200 
201         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
202         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
203 
204         return ret;
205 }
206 
207 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
208         .formats = SNDRV_PCM_FMTBIT_S24_LE,
209         .rate_min = 48000,
210         .rate_max = 48000,
211         .channels_min = 2,
212         .channels_max = 2,
213 };
214 
215 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
216                             struct snd_pcm_hw_params *params)
217 {
218         struct snd_interval *rate = hw_param_interval(params,
219                         SNDRV_PCM_HW_PARAM_RATE);
220         struct snd_interval *channels = hw_param_interval(params,
221                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
222         int ret;
223 
224         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
225         rate->min = rate->max = 48000;
226         channels->min = channels->max = 2;
227 
228         /* set SSP2 to 24-bit */
229         params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
230 
231         /*
232          * Default mode for SSP configuration is TDM 4 slot, override config
233          * with explicit setting to I2S 2ch 24-bit. The word length is set with
234          * dai_set_tdm_slot() since there is no other API exposed
235          */
236         ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
237                                   SND_SOC_DAIFMT_I2S     |
238                                   SND_SOC_DAIFMT_NB_IF   |
239                                   SND_SOC_DAIFMT_CBS_CFS
240                                   );
241         if (ret < 0) {
242                 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
243                 return ret;
244         }
245 
246         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
247         if (ret < 0) {
248                 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
249                 return ret;
250         }
251 
252         return 0;
253 }
254 
255 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
256 {
257         return snd_pcm_hw_constraint_single(substream->runtime,
258                         SNDRV_PCM_HW_PARAM_RATE, 48000);
259 }
260 
261 static struct snd_soc_ops byt_rt5640_aif1_ops = {
262         .startup = byt_rt5640_aif1_startup,
263 };
264 
265 static struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
266         .hw_params = byt_rt5640_aif1_hw_params,
267 };
268 
269 static struct snd_soc_dai_link byt_rt5640_dais[] = {
270         [MERR_DPCM_AUDIO] = {
271                 .name = "Baytrail Audio Port",
272                 .stream_name = "Baytrail Audio",
273                 .cpu_dai_name = "media-cpu-dai",
274                 .codec_dai_name = "snd-soc-dummy-dai",
275                 .codec_name = "snd-soc-dummy",
276                 .platform_name = "sst-mfld-platform",
277                 .ignore_suspend = 1,
278                 .dynamic = 1,
279                 .dpcm_playback = 1,
280                 .dpcm_capture = 1,
281                 .ops = &byt_rt5640_aif1_ops,
282         },
283         [MERR_DPCM_DEEP_BUFFER] = {
284                 .name = "Deep-Buffer Audio Port",
285                 .stream_name = "Deep-Buffer Audio",
286                 .cpu_dai_name = "deepbuffer-cpu-dai",
287                 .codec_dai_name = "snd-soc-dummy-dai",
288                 .codec_name = "snd-soc-dummy",
289                 .platform_name = "sst-mfld-platform",
290                 .ignore_suspend = 1,
291                 .nonatomic = true,
292                 .dynamic = 1,
293                 .dpcm_playback = 1,
294                 .ops = &byt_rt5640_aif1_ops,
295         },
296         [MERR_DPCM_COMPR] = {
297                 .name = "Baytrail Compressed Port",
298                 .stream_name = "Baytrail Compress",
299                 .cpu_dai_name = "compress-cpu-dai",
300                 .codec_dai_name = "snd-soc-dummy-dai",
301                 .codec_name = "snd-soc-dummy",
302                 .platform_name = "sst-mfld-platform",
303         },
304                 /* back ends */
305         {
306                 .name = "SSP2-Codec",
307                 .id = 1,
308                 .cpu_dai_name = "ssp2-port",
309                 .platform_name = "sst-mfld-platform",
310                 .no_pcm = 1,
311                 .codec_dai_name = "rt5640-aif1",
312                 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
313                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
314                                                 | SND_SOC_DAIFMT_CBS_CFS,
315                 .be_hw_params_fixup = byt_rt5640_codec_fixup,
316                 .ignore_suspend = 1,
317                 .dpcm_playback = 1,
318                 .dpcm_capture = 1,
319                 .init = byt_rt5640_init,
320                 .ops = &byt_rt5640_be_ssp2_ops,
321         },
322 };
323 
324 /* SoC card */
325 static struct snd_soc_card byt_rt5640_card = {
326         .name = "bytcr-rt5640",
327         .owner = THIS_MODULE,
328         .dai_link = byt_rt5640_dais,
329         .num_links = ARRAY_SIZE(byt_rt5640_dais),
330         .dapm_widgets = byt_rt5640_widgets,
331         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
332         .dapm_routes = byt_rt5640_audio_map,
333         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
334         .fully_routed = true,
335 };
336 
337 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
338 
339 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
340 {
341         int ret_val = 0;
342         struct sst_acpi_mach *mach;
343         const char *i2c_name = NULL;
344         int i;
345         int dai_index;
346 
347         /* register the soc card */
348         byt_rt5640_card.dev = &pdev->dev;
349         mach = byt_rt5640_card.dev->platform_data;
350 
351         /* fix index of codec dai */
352         dai_index = MERR_DPCM_COMPR + 1;
353         for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
354                 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
355                         dai_index = i;
356                         break;
357                 }
358         }
359 
360         /* fixup codec name based on HID */
361         i2c_name = sst_acpi_find_name_from_hid(mach->id);
362         if (i2c_name != NULL) {
363                 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
364                         "%s%s", "i2c-", i2c_name);
365 
366                 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
367         }
368 
369         /* check quirks before creating card */
370         dmi_check_system(byt_rt5640_quirk_table);
371 
372         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
373 
374         if (ret_val) {
375                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
376                         ret_val);
377                 return ret_val;
378         }
379         platform_set_drvdata(pdev, &byt_rt5640_card);
380         return ret_val;
381 }
382 
383 static struct platform_driver snd_byt_rt5640_mc_driver = {
384         .driver = {
385                 .name = "bytcr_rt5640",
386                 .pm = &snd_soc_pm_ops,
387         },
388         .probe = snd_byt_rt5640_mc_probe,
389 };
390 
391 module_platform_driver(snd_byt_rt5640_mc_driver);
392 
393 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
394 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
395 MODULE_LICENSE("GPL v2");
396 MODULE_ALIAS("platform:bytcr_rt5640");
397 

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