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

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  1 /*
  2  * Intel Haswell Lynxpoint SST Audio
  3  *
  4  * Copyright (C) 2013, Intel Corporation. All rights reserved.
  5  *
  6  * This program is free software; you can redistribute it and/or
  7  * modify it under the terms of the GNU General Public License version
  8  * 2 as published by the Free Software Foundation.
  9  *
 10  * This program is distributed in the hope that it will be useful,
 11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13  * GNU General Public License for more details.
 14  *
 15  */
 16 
 17 #include <linux/module.h>
 18 #include <linux/platform_device.h>
 19 #include <sound/core.h>
 20 #include <sound/pcm.h>
 21 #include <sound/soc.h>
 22 #include <sound/pcm_params.h>
 23 
 24 #include "../common/sst-dsp.h"
 25 #include "../haswell/sst-haswell-ipc.h"
 26 
 27 #include "../../codecs/rt5640.h"
 28 
 29 /* Haswell ULT platforms have a Headphone and Mic jack */
 30 static const struct snd_soc_dapm_widget haswell_widgets[] = {
 31         SND_SOC_DAPM_HP("Headphones", NULL),
 32         SND_SOC_DAPM_MIC("Mic", NULL),
 33 };
 34 
 35 static const struct snd_soc_dapm_route haswell_rt5640_map[] = {
 36 
 37         {"Headphones", NULL, "HPOR"},
 38         {"Headphones", NULL, "HPOL"},
 39         {"IN2P", NULL, "Mic"},
 40 
 41         /* CODEC BE connections */
 42         {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
 43         {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
 44 };
 45 
 46 static int haswell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 47                         struct snd_pcm_hw_params *params)
 48 {
 49         struct snd_interval *rate = hw_param_interval(params,
 50                         SNDRV_PCM_HW_PARAM_RATE);
 51         struct snd_interval *channels = hw_param_interval(params,
 52                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 53 
 54         /* The ADSP will covert the FE rate to 48k, stereo */
 55         rate->min = rate->max = 48000;
 56         channels->min = channels->max = 2;
 57 
 58         /* set SSP0 to 16 bit */
 59         params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 60         return 0;
 61 }
 62 
 63 static int haswell_rt5640_hw_params(struct snd_pcm_substream *substream,
 64         struct snd_pcm_hw_params *params)
 65 {
 66         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 67         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 68         int ret;
 69 
 70         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,
 71                 SND_SOC_CLOCK_IN);
 72 
 73         if (ret < 0) {
 74                 dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 75                 return ret;
 76         }
 77 
 78         /* set correct codec filter for DAI format and clock config */
 79         snd_soc_update_bits(rtd->codec, 0x83, 0xffff, 0x8000);
 80 
 81         return ret;
 82 }
 83 
 84 static struct snd_soc_ops haswell_rt5640_ops = {
 85         .hw_params = haswell_rt5640_hw_params,
 86 };
 87 
 88 static int haswell_rtd_init(struct snd_soc_pcm_runtime *rtd)
 89 {
 90         struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
 91         struct sst_hsw *haswell = pdata->dsp;
 92         int ret;
 93 
 94         /* Set ADSP SSP port settings */
 95         ret = sst_hsw_device_set_config(haswell, SST_HSW_DEVICE_SSP_0,
 96                 SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 97                 SST_HSW_DEVICE_CLOCK_MASTER, 9);
 98         if (ret < 0) {
 99                 dev_err(rtd->dev, "failed to set device config\n");
100                 return ret;
101         }
102 
103         return 0;
104 }
105 
106 static struct snd_soc_dai_link haswell_rt5640_dais[] = {
107         /* Front End DAI links */
108         {
109                 .name = "System",
110                 .stream_name = "System Playback/Capture",
111                 .cpu_dai_name = "System Pin",
112                 .platform_name = "haswell-pcm-audio",
113                 .dynamic = 1,
114                 .codec_name = "snd-soc-dummy",
115                 .codec_dai_name = "snd-soc-dummy-dai",
116                 .init = haswell_rtd_init,
117                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
118                 .dpcm_playback = 1,
119                 .dpcm_capture = 1,
120         },
121         {
122                 .name = "Offload0",
123                 .stream_name = "Offload0 Playback",
124                 .cpu_dai_name = "Offload0 Pin",
125                 .platform_name = "haswell-pcm-audio",
126                 .dynamic = 1,
127                 .codec_name = "snd-soc-dummy",
128                 .codec_dai_name = "snd-soc-dummy-dai",
129                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
130                 .dpcm_playback = 1,
131         },
132         {
133                 .name = "Offload1",
134                 .stream_name = "Offload1 Playback",
135                 .cpu_dai_name = "Offload1 Pin",
136                 .platform_name = "haswell-pcm-audio",
137                 .dynamic = 1,
138                 .codec_name = "snd-soc-dummy",
139                 .codec_dai_name = "snd-soc-dummy-dai",
140                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
141                 .dpcm_playback = 1,
142         },
143         {
144                 .name = "Loopback",
145                 .stream_name = "Loopback",
146                 .cpu_dai_name = "Loopback Pin",
147                 .platform_name = "haswell-pcm-audio",
148                 .dynamic = 0,
149                 .codec_name = "snd-soc-dummy",
150                 .codec_dai_name = "snd-soc-dummy-dai",
151                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
152                 .dpcm_capture = 1,
153         },
154 
155         /* Back End DAI links */
156         {
157                 /* SSP0 - Codec */
158                 .name = "Codec",
159                 .be_id = 0,
160                 .cpu_dai_name = "snd-soc-dummy-dai",
161                 .platform_name = "snd-soc-dummy",
162                 .no_pcm = 1,
163                 .codec_name = "i2c-INT33CA:00",
164                 .codec_dai_name = "rt5640-aif1",
165                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
166                         SND_SOC_DAIFMT_CBS_CFS,
167                 .ignore_suspend = 1,
168                 .ignore_pmdown_time = 1,
169                 .be_hw_params_fixup = haswell_ssp0_fixup,
170                 .ops = &haswell_rt5640_ops,
171                 .dpcm_playback = 1,
172                 .dpcm_capture = 1,
173         },
174 };
175 
176 /* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
177 static struct snd_soc_card haswell_rt5640 = {
178         .name = "haswell-rt5640",
179         .owner = THIS_MODULE,
180         .dai_link = haswell_rt5640_dais,
181         .num_links = ARRAY_SIZE(haswell_rt5640_dais),
182         .dapm_widgets = haswell_widgets,
183         .num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
184         .dapm_routes = haswell_rt5640_map,
185         .num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
186         .fully_routed = true,
187 };
188 
189 static int haswell_audio_probe(struct platform_device *pdev)
190 {
191         haswell_rt5640.dev = &pdev->dev;
192 
193         return devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
194 }
195 
196 static struct platform_driver haswell_audio = {
197         .probe = haswell_audio_probe,
198         .driver = {
199                 .name = "haswell-audio",
200         },
201 };
202 
203 module_platform_driver(haswell_audio)
204 
205 /* Module information */
206 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
207 MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
208 MODULE_LICENSE("GPL v2");
209 MODULE_ALIAS("platform:haswell-audio");
210 

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