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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_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT |
 60                                     SND_JACK_HEADSET | SND_JACK_BTN_0,
 61                                     &lowland_headset, lowland_headset_pins,
 62                                     ARRAY_SIZE(lowland_headset_pins));
 63         if (ret)
 64                 return ret;
 65 
 66         wm5100_detect(codec, &lowland_headset);
 67 
 68         return 0;
 69 }
 70 
 71 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
 72 {
 73         struct snd_soc_codec *codec = rtd->codec;
 74 
 75         snd_soc_dapm_nc_pin(&rtd->card->dapm, "LINEOUT");
 76 
 77         /* At any time the WM9081 is active it will have this clock */
 78         return snd_soc_codec_set_sysclk(codec, WM9081_SYSCLK_MCLK, 0,
 79                                         CLKOUT_RATE, 0);
 80 }
 81 
 82 static const struct snd_soc_pcm_stream sub_params = {
 83         .formats = SNDRV_PCM_FMTBIT_S32_LE,
 84         .rate_min = 44100,
 85         .rate_max = 44100,
 86         .channels_min = 2,
 87         .channels_max = 2,
 88 };
 89 
 90 static struct snd_soc_dai_link lowland_dai[] = {
 91         {
 92                 .name = "CPU",
 93                 .stream_name = "CPU",
 94                 .cpu_dai_name = "samsung-i2s.0",
 95                 .codec_dai_name = "wm5100-aif1",
 96                 .platform_name = "samsung-i2s.0",
 97                 .codec_name = "wm5100.1-001a",
 98                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 99                                 SND_SOC_DAIFMT_CBM_CFM,
100                 .init = lowland_wm5100_init,
101         },
102         {
103                 .name = "Baseband",
104                 .stream_name = "Baseband",
105                 .cpu_dai_name = "wm5100-aif2",
106                 .codec_dai_name = "wm1250-ev1",
107                 .codec_name = "wm1250-ev1.1-0027",
108                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
109                                 SND_SOC_DAIFMT_CBM_CFM,
110                 .ignore_suspend = 1,
111         },
112         {
113                 .name = "Sub Speaker",
114                 .stream_name = "Sub Speaker",
115                 .cpu_dai_name = "wm5100-aif3",
116                 .codec_dai_name = "wm9081-hifi",
117                 .codec_name = "wm9081.1-006c",
118                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
119                                 SND_SOC_DAIFMT_CBM_CFM,
120                 .ignore_suspend = 1,
121                 .params = &sub_params,
122                 .init = lowland_wm9081_init,
123         },
124 };
125 
126 static struct snd_soc_codec_conf lowland_codec_conf[] = {
127         {
128                 .dev_name = "wm9081.1-006c",
129                 .name_prefix = "Sub",
130         },
131 };
132 
133 static const struct snd_kcontrol_new controls[] = {
134         SOC_DAPM_PIN_SWITCH("Main Speaker"),
135         SOC_DAPM_PIN_SWITCH("Main DMIC"),
136         SOC_DAPM_PIN_SWITCH("Main AMIC"),
137         SOC_DAPM_PIN_SWITCH("WM1250 Input"),
138         SOC_DAPM_PIN_SWITCH("WM1250 Output"),
139         SOC_DAPM_PIN_SWITCH("Headphone"),
140 };
141 
142 static struct snd_soc_dapm_widget widgets[] = {
143         SND_SOC_DAPM_HP("Headphone", NULL),
144         SND_SOC_DAPM_MIC("Headset Mic", NULL),
145 
146         SND_SOC_DAPM_SPK("Main Speaker", NULL),
147 
148         SND_SOC_DAPM_MIC("Main AMIC", NULL),
149         SND_SOC_DAPM_MIC("Main DMIC", NULL),
150 };
151 
152 static struct snd_soc_dapm_route audio_paths[] = {
153         { "Sub IN1", NULL, "HPOUT2L" },
154         { "Sub IN2", NULL, "HPOUT2R" },
155 
156         { "Main Speaker", NULL, "Sub SPKN" },
157         { "Main Speaker", NULL, "Sub SPKP" },
158         { "Main Speaker", NULL, "SPKDAT1" },
159 };
160 
161 static struct snd_soc_card lowland = {
162         .name = "Lowland",
163         .owner = THIS_MODULE,
164         .dai_link = lowland_dai,
165         .num_links = ARRAY_SIZE(lowland_dai),
166         .codec_conf = lowland_codec_conf,
167         .num_configs = ARRAY_SIZE(lowland_codec_conf),
168 
169         .controls = controls,
170         .num_controls = ARRAY_SIZE(controls),
171         .dapm_widgets = widgets,
172         .num_dapm_widgets = ARRAY_SIZE(widgets),
173         .dapm_routes = audio_paths,
174         .num_dapm_routes = ARRAY_SIZE(audio_paths),
175 };
176 
177 static int lowland_probe(struct platform_device *pdev)
178 {
179         struct snd_soc_card *card = &lowland;
180         int ret;
181 
182         card->dev = &pdev->dev;
183 
184         ret = devm_snd_soc_register_card(&pdev->dev, card);
185         if (ret)
186                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
187                         ret);
188 
189         return ret;
190 }
191 
192 static struct platform_driver lowland_driver = {
193         .driver = {
194                 .name = "lowland",
195                 .pm = &snd_soc_pm_ops,
196         },
197         .probe = lowland_probe,
198 };
199 
200 module_platform_driver(lowland_driver);
201 
202 MODULE_DESCRIPTION("Lowland audio support");
203 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
204 MODULE_LICENSE("GPL");
205 MODULE_ALIAS("platform:lowland");
206 

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