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Linux/sound/soc/samsung/lowland.c

  1 /*
  2  * Lowland audio support
  3  *
  4  * Copyright 2011 Wolfson Microelectronics
  5  *
  6  * This program is free software; you can redistribute  it and/or modify it
  7  * under  the terms of  the GNU General  Public License as published by the
  8  * Free Software Foundation;  either version 2 of the  License, or (at your
  9  * option) any later version.
 10  */
 11 
 12 #include <sound/soc.h>
 13 #include <sound/soc-dapm.h>
 14 #include <sound/jack.h>
 15 #include <linux/gpio.h>
 16 #include <linux/module.h>
 17 
 18 #include "../codecs/wm5100.h"
 19 #include "../codecs/wm9081.h"
 20 
 21 #define MCLK1_RATE (44100 * 512)
 22 #define CLKOUT_RATE (44100 * 256)
 23 
 24 static struct snd_soc_jack lowland_headset;
 25 
 26 /* Headset jack detection DAPM pins */
 27 static struct snd_soc_jack_pin lowland_headset_pins[] = {
 28         {
 29                 .pin = "Headphone",
 30                 .mask = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
 31         },
 32         {
 33                 .pin = "Headset Mic",
 34                 .mask = SND_JACK_MICROPHONE,
 35         },
 36 };
 37 
 38 static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)
 39 {
 40         struct snd_soc_codec *codec = rtd->codec;
 41         int ret;
 42 
 43         ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_SYSCLK,
 44                                        WM5100_CLKSRC_MCLK1, MCLK1_RATE,
 45                                        SND_SOC_CLOCK_IN);
 46         if (ret < 0) {
 47                 pr_err("Failed to set SYSCLK clock source: %d\n", ret);
 48                 return ret;
 49         }
 50 
 51         /* Clock OPCLK, used by the other audio components. */
 52         ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_OPCLK, 0,
 53                                        CLKOUT_RATE, 0);
 54         if (ret < 0) {
 55                 pr_err("Failed to set OPCLK rate: %d\n", ret);
 56                 return ret;
 57         }
 58 
 59         ret = snd_soc_jack_new(codec, "Headset",
 60                                SND_JACK_LINEOUT | SND_JACK_HEADSET |
 61                                SND_JACK_BTN_0,
 62                                &lowland_headset);
 63         if (ret)
 64                 return ret;
 65 
 66         ret = snd_soc_jack_add_pins(&lowland_headset,
 67                                     ARRAY_SIZE(lowland_headset_pins),
 68                                     lowland_headset_pins);
 69         if (ret)
 70                 return ret;
 71 
 72         wm5100_detect(codec, &lowland_headset);
 73 
 74         return 0;
 75 }
 76 
 77 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
 78 {
 79         struct snd_soc_codec *codec = rtd->codec;
 80 
 81         snd_soc_dapm_nc_pin(&codec->dapm, "LINEOUT");
 82 
 83         /* At any time the WM9081 is active it will have this clock */
 84         return snd_soc_codec_set_sysclk(codec, WM9081_SYSCLK_MCLK, 0,
 85                                         CLKOUT_RATE, 0);
 86 }
 87 
 88 static const struct snd_soc_pcm_stream sub_params = {
 89         .formats = SNDRV_PCM_FMTBIT_S32_LE,
 90         .rate_min = 44100,
 91         .rate_max = 44100,
 92         .channels_min = 2,
 93         .channels_max = 2,
 94 };
 95 
 96 static struct snd_soc_dai_link lowland_dai[] = {
 97         {
 98                 .name = "CPU",
 99                 .stream_name = "CPU",
100                 .cpu_dai_name = "samsung-i2s.0",
101                 .codec_dai_name = "wm5100-aif1",
102                 .platform_name = "samsung-i2s.0",
103                 .codec_name = "wm5100.1-001a",
104                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
105                                 SND_SOC_DAIFMT_CBM_CFM,
106                 .init = lowland_wm5100_init,
107         },
108         {
109                 .name = "Baseband",
110                 .stream_name = "Baseband",
111                 .cpu_dai_name = "wm5100-aif2",
112                 .codec_dai_name = "wm1250-ev1",
113                 .codec_name = "wm1250-ev1.1-0027",
114                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
115                                 SND_SOC_DAIFMT_CBM_CFM,
116                 .ignore_suspend = 1,
117         },
118         {
119                 .name = "Sub Speaker",
120                 .stream_name = "Sub Speaker",
121                 .cpu_dai_name = "wm5100-aif3",
122                 .codec_dai_name = "wm9081-hifi",
123                 .codec_name = "wm9081.1-006c",
124                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
125                                 SND_SOC_DAIFMT_CBM_CFM,
126                 .ignore_suspend = 1,
127                 .params = &sub_params,
128                 .init = lowland_wm9081_init,
129         },
130 };
131 
132 static struct snd_soc_codec_conf lowland_codec_conf[] = {
133         {
134                 .dev_name = "wm9081.1-006c",
135                 .name_prefix = "Sub",
136         },
137 };
138 
139 static const struct snd_kcontrol_new controls[] = {
140         SOC_DAPM_PIN_SWITCH("Main Speaker"),
141         SOC_DAPM_PIN_SWITCH("Main DMIC"),
142         SOC_DAPM_PIN_SWITCH("Main AMIC"),
143         SOC_DAPM_PIN_SWITCH("WM1250 Input"),
144         SOC_DAPM_PIN_SWITCH("WM1250 Output"),
145         SOC_DAPM_PIN_SWITCH("Headphone"),
146 };
147 
148 static struct snd_soc_dapm_widget widgets[] = {
149         SND_SOC_DAPM_HP("Headphone", NULL),
150         SND_SOC_DAPM_MIC("Headset Mic", NULL),
151 
152         SND_SOC_DAPM_SPK("Main Speaker", NULL),
153 
154         SND_SOC_DAPM_MIC("Main AMIC", NULL),
155         SND_SOC_DAPM_MIC("Main DMIC", NULL),
156 };
157 
158 static struct snd_soc_dapm_route audio_paths[] = {
159         { "Sub IN1", NULL, "HPOUT2L" },
160         { "Sub IN2", NULL, "HPOUT2R" },
161 
162         { "Main Speaker", NULL, "Sub SPKN" },
163         { "Main Speaker", NULL, "Sub SPKP" },
164         { "Main Speaker", NULL, "SPKDAT1" },
165 };
166 
167 static struct snd_soc_card lowland = {
168         .name = "Lowland",
169         .owner = THIS_MODULE,
170         .dai_link = lowland_dai,
171         .num_links = ARRAY_SIZE(lowland_dai),
172         .codec_conf = lowland_codec_conf,
173         .num_configs = ARRAY_SIZE(lowland_codec_conf),
174 
175         .controls = controls,
176         .num_controls = ARRAY_SIZE(controls),
177         .dapm_widgets = widgets,
178         .num_dapm_widgets = ARRAY_SIZE(widgets),
179         .dapm_routes = audio_paths,
180         .num_dapm_routes = ARRAY_SIZE(audio_paths),
181 };
182 
183 static int lowland_probe(struct platform_device *pdev)
184 {
185         struct snd_soc_card *card = &lowland;
186         int ret;
187 
188         card->dev = &pdev->dev;
189 
190         ret = devm_snd_soc_register_card(&pdev->dev, card);
191         if (ret)
192                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
193                         ret);
194 
195         return ret;
196 }
197 
198 static struct platform_driver lowland_driver = {
199         .driver = {
200                 .name = "lowland",
201                 .owner = THIS_MODULE,
202                 .pm = &snd_soc_pm_ops,
203         },
204         .probe = lowland_probe,
205 };
206 
207 module_platform_driver(lowland_driver);
208 
209 MODULE_DESCRIPTION("Lowland audio support");
210 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
211 MODULE_LICENSE("GPL");
212 MODULE_ALIAS("platform:lowland");
213 

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