3186f015939fb5fce3e8393fd40463362464dbf8
[sfrench/cifs-2.6.git] / sound / soc / intel / boards / bytcr_rt5651.c
1 /*
2  *  bytcr_rt5651.c - ASoc Machine driver for Intel Byt CR platform
3  *  (derived from bytcr_rt5640.c)
4  *
5  *  Copyright (C) 2015 Intel Corp
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/rt5651.h"
32 #include "../atom/sst-atom-controls.h"
33
34 static const struct snd_soc_dapm_widget byt_rt5651_widgets[] = {
35         SND_SOC_DAPM_HP("Headphone", NULL),
36         SND_SOC_DAPM_MIC("Headset Mic", NULL),
37         SND_SOC_DAPM_MIC("Internal Mic", NULL),
38         SND_SOC_DAPM_SPK("Speaker", NULL),
39 };
40
41 static const struct snd_soc_dapm_route byt_rt5651_audio_map[] = {
42         {"AIF1 Playback", NULL, "ssp2 Tx"},
43         {"ssp2 Tx", NULL, "codec_out0"},
44         {"ssp2 Tx", NULL, "codec_out1"},
45         {"codec_in0", NULL, "ssp2 Rx"},
46         {"codec_in1", NULL, "ssp2 Rx"},
47         {"ssp2 Rx", NULL, "AIF1 Capture"},
48
49         {"Headset Mic", NULL, "micbias1"}, /* lowercase for rt5651 */
50         {"IN2P", NULL, "Headset Mic"},
51         {"Headphone", NULL, "HPOL"},
52         {"Headphone", NULL, "HPOR"},
53         {"Speaker", NULL, "LOUTL"},
54         {"Speaker", NULL, "LOUTR"},
55 };
56
57 static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic1_map[] = {
58         {"DMIC1", NULL, "Internal Mic"},
59 };
60
61 static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic2_map[] = {
62         {"DMIC2", NULL, "Internal Mic"},
63 };
64
65 static const struct snd_soc_dapm_route byt_rt5651_intmic_in1_map[] = {
66         {"Internal Mic", NULL, "micbias1"},
67         {"IN1P", NULL, "Internal Mic"},
68 };
69
70 enum {
71         BYT_RT5651_DMIC1_MAP,
72         BYT_RT5651_DMIC2_MAP,
73         BYT_RT5651_IN1_MAP,
74 };
75
76 #define BYT_RT5651_MAP(quirk)   ((quirk) & 0xff)
77 #define BYT_RT5651_DMIC_EN      BIT(16)
78
79 static unsigned long byt_rt5651_quirk = BYT_RT5651_DMIC1_MAP |
80                                         BYT_RT5651_DMIC_EN;
81
82 static const struct snd_kcontrol_new byt_rt5651_controls[] = {
83         SOC_DAPM_PIN_SWITCH("Headphone"),
84         SOC_DAPM_PIN_SWITCH("Headset Mic"),
85         SOC_DAPM_PIN_SWITCH("Internal Mic"),
86         SOC_DAPM_PIN_SWITCH("Speaker"),
87 };
88
89 static int byt_rt5651_aif1_hw_params(struct snd_pcm_substream *substream,
90                                         struct snd_pcm_hw_params *params)
91 {
92         struct snd_soc_pcm_runtime *rtd = substream->private_data;
93         struct snd_soc_dai *codec_dai = rtd->codec_dai;
94         int ret;
95
96         snd_soc_dai_set_bclk_ratio(codec_dai, 50);
97
98         ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1,
99                                      params_rate(params) * 512,
100                                      SND_SOC_CLOCK_IN);
101         if (ret < 0) {
102                 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
103                 return ret;
104         }
105
106         ret = snd_soc_dai_set_pll(codec_dai, 0, RT5651_PLL1_S_BCLK1,
107                                   params_rate(params) * 50,
108                                   params_rate(params) * 512);
109         if (ret < 0) {
110                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
111                 return ret;
112         }
113
114         return 0;
115 }
116
117 static const struct dmi_system_id byt_rt5651_quirk_table[] = {
118         {}
119 };
120
121 static int byt_rt5651_init(struct snd_soc_pcm_runtime *runtime)
122 {
123         int ret;
124         struct snd_soc_card *card = runtime->card;
125         const struct snd_soc_dapm_route *custom_map;
126         int num_routes;
127
128         card->dapm.idle_bias_off = true;
129
130         dmi_check_system(byt_rt5651_quirk_table);
131         switch (BYT_RT5651_MAP(byt_rt5651_quirk)) {
132         case BYT_RT5651_IN1_MAP:
133                 custom_map = byt_rt5651_intmic_in1_map;
134                 num_routes = ARRAY_SIZE(byt_rt5651_intmic_in1_map);
135                 break;
136         case BYT_RT5651_DMIC2_MAP:
137                 custom_map = byt_rt5651_intmic_dmic2_map;
138                 num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic2_map);
139                 break;
140         default:
141                 custom_map = byt_rt5651_intmic_dmic1_map;
142                 num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic1_map);
143         }
144
145         ret = snd_soc_add_card_controls(card, byt_rt5651_controls,
146                                         ARRAY_SIZE(byt_rt5651_controls));
147         if (ret) {
148                 dev_err(card->dev, "unable to add card controls\n");
149                 return ret;
150         }
151         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
152         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
153
154         return ret;
155 }
156
157 static const struct snd_soc_pcm_stream byt_rt5651_dai_params = {
158         .formats = SNDRV_PCM_FMTBIT_S24_LE,
159         .rate_min = 48000,
160         .rate_max = 48000,
161         .channels_min = 2,
162         .channels_max = 2,
163 };
164
165 static int byt_rt5651_codec_fixup(struct snd_soc_pcm_runtime *rtd,
166                             struct snd_pcm_hw_params *params)
167 {
168         struct snd_interval *rate = hw_param_interval(params,
169                         SNDRV_PCM_HW_PARAM_RATE);
170         struct snd_interval *channels = hw_param_interval(params,
171                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
172         int ret;
173
174         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
175         rate->min = rate->max = 48000;
176         channels->min = channels->max = 2;
177
178         /* set SSP2 to 24-bit */
179         params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
180
181         /*
182          * Default mode for SSP configuration is TDM 4 slot, override config
183          * with explicit setting to I2S 2ch 24-bit. The word length is set with
184          * dai_set_tdm_slot() since there is no other API exposed
185          */
186         ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
187                                   SND_SOC_DAIFMT_I2S     |
188                                   SND_SOC_DAIFMT_NB_NF   |
189                                   SND_SOC_DAIFMT_CBS_CFS
190                                   );
191
192         if (ret < 0) {
193                 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
194                 return ret;
195         }
196
197         ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
198         if (ret < 0) {
199                 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
200                 return ret;
201         }
202
203         return 0;
204 }
205
206 static unsigned int rates_48000[] = {
207         48000,
208 };
209
210 static struct snd_pcm_hw_constraint_list constraints_48000 = {
211         .count = ARRAY_SIZE(rates_48000),
212         .list  = rates_48000,
213 };
214
215 static int byt_rt5651_aif1_startup(struct snd_pcm_substream *substream)
216 {
217         return snd_pcm_hw_constraint_list(substream->runtime, 0,
218                         SNDRV_PCM_HW_PARAM_RATE,
219                         &constraints_48000);
220 }
221
222 static const struct snd_soc_ops byt_rt5651_aif1_ops = {
223         .startup = byt_rt5651_aif1_startup,
224 };
225
226 static const struct snd_soc_ops byt_rt5651_be_ssp2_ops = {
227         .hw_params = byt_rt5651_aif1_hw_params,
228 };
229
230 static struct snd_soc_dai_link byt_rt5651_dais[] = {
231         [MERR_DPCM_AUDIO] = {
232                 .name = "Audio Port",
233                 .stream_name = "Audio",
234                 .cpu_dai_name = "media-cpu-dai",
235                 .codec_dai_name = "snd-soc-dummy-dai",
236                 .codec_name = "snd-soc-dummy",
237                 .platform_name = "sst-mfld-platform",
238                 .ignore_suspend = 1,
239                 .nonatomic = true,
240                 .dynamic = 1,
241                 .dpcm_playback = 1,
242                 .dpcm_capture = 1,
243                 .ops = &byt_rt5651_aif1_ops,
244         },
245         [MERR_DPCM_DEEP_BUFFER] = {
246                 .name = "Deep-Buffer Audio Port",
247                 .stream_name = "Deep-Buffer Audio",
248                 .cpu_dai_name = "deepbuffer-cpu-dai",
249                 .codec_dai_name = "snd-soc-dummy-dai",
250                 .codec_name = "snd-soc-dummy",
251                 .platform_name = "sst-mfld-platform",
252                 .ignore_suspend = 1,
253                 .nonatomic = true,
254                 .dynamic = 1,
255                 .dpcm_playback = 1,
256                 .ops = &byt_rt5651_aif1_ops,
257         },
258         [MERR_DPCM_COMPR] = {
259                 .name = "Compressed Port",
260                 .stream_name = "Compress",
261                 .cpu_dai_name = "compress-cpu-dai",
262                 .codec_dai_name = "snd-soc-dummy-dai",
263                 .codec_name = "snd-soc-dummy",
264                 .platform_name = "sst-mfld-platform",
265         },
266         /* CODEC<->CODEC link */
267         /* back ends */
268         {
269                 .name = "SSP2-Codec",
270                 .id = 1,
271                 .cpu_dai_name = "ssp2-port",
272                 .platform_name = "sst-mfld-platform",
273                 .no_pcm = 1,
274                 .codec_dai_name = "rt5651-aif1",
275                 .codec_name = "i2c-10EC5651:00",
276                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
277                                                 | SND_SOC_DAIFMT_CBS_CFS,
278                 .be_hw_params_fixup = byt_rt5651_codec_fixup,
279                 .ignore_suspend = 1,
280                 .nonatomic = true,
281                 .dpcm_playback = 1,
282                 .dpcm_capture = 1,
283                 .init = byt_rt5651_init,
284                 .ops = &byt_rt5651_be_ssp2_ops,
285         },
286 };
287
288 /* SoC card */
289 static struct snd_soc_card byt_rt5651_card = {
290         .name = "bytcr-rt5651",
291         .owner = THIS_MODULE,
292         .dai_link = byt_rt5651_dais,
293         .num_links = ARRAY_SIZE(byt_rt5651_dais),
294         .dapm_widgets = byt_rt5651_widgets,
295         .num_dapm_widgets = ARRAY_SIZE(byt_rt5651_widgets),
296         .dapm_routes = byt_rt5651_audio_map,
297         .num_dapm_routes = ARRAY_SIZE(byt_rt5651_audio_map),
298         .fully_routed = true,
299 };
300
301 static int snd_byt_rt5651_mc_probe(struct platform_device *pdev)
302 {
303         int ret_val = 0;
304
305         /* register the soc card */
306         byt_rt5651_card.dev = &pdev->dev;
307
308         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5651_card);
309
310         if (ret_val) {
311                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
312                         ret_val);
313                 return ret_val;
314         }
315         platform_set_drvdata(pdev, &byt_rt5651_card);
316         return ret_val;
317 }
318
319 static struct platform_driver snd_byt_rt5651_mc_driver = {
320         .driver = {
321                 .name = "bytcr_rt5651",
322         },
323         .probe = snd_byt_rt5651_mc_probe,
324 };
325
326 module_platform_driver(snd_byt_rt5651_mc_driver);
327
328 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver for RT5651");
329 MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>");
330 MODULE_LICENSE("GPL v2");
331 MODULE_ALIAS("platform:bytcr_rt5651");