sound/soc/pxa/palm27x.c

   1 /*
   2  * linux/sound/soc/pxa/palm27x.c
   3  *
   4  * SoC Audio driver for Palm T|X, T5 and LifeDrive
   5  *
   6  * based on tosa.c
   7  *
   8  * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/moduleparam.h>
  18 #include <linux/device.h>
  19 #include <linux/gpio.h>
  20
  21 #include <sound/core.h>
  22 #include <sound/pcm.h>
  23 #include <sound/soc.h>
  24 #include <sound/jack.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <mach/audio.h>
  28 #include <linux/platform_data/asoc-palm27x.h>
  29
  30 #include "../codecs/wm9712.h"
  31 #include "pxa2xx-ac97.h"
  32
  33 static struct snd_soc_jack hs_jack;
  34
  35 /* Headphones jack detection DAPM pins */
  36 static struct snd_soc_jack_pin hs_jack_pins[] = {
  37         {
  38                 .pin    = "Headphone Jack",
  39                 .mask   = SND_JACK_HEADPHONE,
  40         },
  41 };
  42
  43 /* Headphones jack detection gpios */
  44 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  45         [0] = {
  46                 /* gpio is set on per-platform basis */
  47                 .name           = "hp-gpio",
  48                 .report         = SND_JACK_HEADPHONE,
  49                 .debounce_time  = 200,
  50         },
  51 };
  52
  53 /* Palm27x machine dapm widgets */
  54 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  55         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  56         SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  57         SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  58 };
  59
  60 /* PalmTX audio map */
  61 static const struct snd_soc_dapm_route audio_map[] = {
  62         /* headphone connected to HPOUTL, HPOUTR */
  63         {"Headphone Jack", NULL, "HPOUTL"},
  64         {"Headphone Jack", NULL, "HPOUTR"},
  65
  66         /* ext speaker connected to ROUT2, LOUT2 */
  67         {"Ext. Speaker", NULL, "LOUT2"},
  68         {"Ext. Speaker", NULL, "ROUT2"},
  69
  70         /* mic connected to MIC1 */
  71         {"Ext. Microphone", NULL, "MIC1"},
  72 };
  73
  74 static struct snd_soc_card palm27x_asoc;
  75
  76 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
  77 {
  78         struct snd_soc_codec *codec = rtd->codec;
  79         struct snd_soc_dapm_context *dapm = &codec->dapm;
  80         int err;
  81
  82         /* add palm27x specific widgets */
  83         err = snd_soc_dapm_new_controls(dapm, palm27x_dapm_widgets,
  84                                 ARRAY_SIZE(palm27x_dapm_widgets));
  85         if (err)
  86                 return err;
  87
  88         /* set up palm27x specific audio path audio_map */
  89         err = snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
  90         if (err)
  91                 return err;
  92
  93         /* connected pins */
  94         if (machine_is_palmld())
  95                 snd_soc_dapm_enable_pin(dapm, "MIC1");
  96         snd_soc_dapm_enable_pin(dapm, "HPOUTL");
  97         snd_soc_dapm_enable_pin(dapm, "HPOUTR");
  98         snd_soc_dapm_enable_pin(dapm, "LOUT2");
  99         snd_soc_dapm_enable_pin(dapm, "ROUT2");
 100
 101         /* not connected pins */
 102         snd_soc_dapm_nc_pin(dapm, "OUT3");
 103         snd_soc_dapm_nc_pin(dapm, "MONOOUT");
 104         snd_soc_dapm_nc_pin(dapm, "LINEINL");
 105         snd_soc_dapm_nc_pin(dapm, "LINEINR");
 106         snd_soc_dapm_nc_pin(dapm, "PCBEEP");
 107         snd_soc_dapm_nc_pin(dapm, "PHONE");
 108         snd_soc_dapm_nc_pin(dapm, "MIC2");
 109
 110         /* Jack detection API stuff */
 111         err = snd_soc_jack_new(codec, "Headphone Jack",
 112                                 SND_JACK_HEADPHONE, &hs_jack);
 113         if (err)
 114                 return err;
 115
 116         err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 117                                 hs_jack_pins);
 118         if (err)
 119                 return err;
 120
 121         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 122                                 hs_jack_gpios);
 123
 124         return err;
 125 }
 126
 127 static struct snd_soc_dai_link palm27x_dai[] = {
 128 {
 129         .name = "AC97 HiFi",
 130         .stream_name = "AC97 HiFi",
 131         .cpu_dai_name = "pxa2xx-ac97",
 132         .codec_dai_name =  "wm9712-hifi",
 133         .codec_name = "wm9712-codec",
 134         .platform_name = "pxa-pcm-audio",
 135         .init = palm27x_ac97_init,
 136 },
 137 {
 138         .name = "AC97 Aux",
 139         .stream_name = "AC97 Aux",
 140         .cpu_dai_name = "pxa2xx-ac97-aux",
 141         .codec_dai_name = "wm9712-aux",
 142         .codec_name = "wm9712-codec",
 143         .platform_name = "pxa-pcm-audio",
 144 },
 145 };
 146
 147 static struct snd_soc_card palm27x_asoc = {
 148         .name = "Palm/PXA27x",
 149         .owner = THIS_MODULE,
 150         .dai_link = palm27x_dai,
 151         .num_links = ARRAY_SIZE(palm27x_dai),
 152 };
 153
 154 static struct platform_device *palm27x_snd_device;
 155
 156 static int palm27x_asoc_probe(struct platform_device *pdev)
 157 {
 158         int ret;
 159
 160         if (!(machine_is_palmtx() || machine_is_palmt5() ||
 161                 machine_is_palmld() || machine_is_palmte2()))
 162                 return -ENODEV;
 163
 164         if (!pdev->dev.platform_data) {
 165                 dev_err(&pdev->dev, "please supply platform_data\n");
 166                 return -ENODEV;
 167         }
 168
 169         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 170                         (pdev->dev.platform_data))->jack_gpio;
 171
 172         palm27x_snd_device = platform_device_alloc("soc-audio", -1);
 173         if (!palm27x_snd_device)
 174                 return -ENOMEM;
 175
 176         platform_set_drvdata(palm27x_snd_device, &palm27x_asoc);
 177         ret = platform_device_add(palm27x_snd_device);
 178
 179         if (ret != 0)
 180                 goto put_device;
 181
 182         return 0;
 183
 184 put_device:
 185         platform_device_put(palm27x_snd_device);
 186
 187         return ret;
 188 }
 189
 190 static int palm27x_asoc_remove(struct platform_device *pdev)
 191 {
 192         platform_device_unregister(palm27x_snd_device);
 193         return 0;
 194 }
 195
 196 static struct platform_driver palm27x_wm9712_driver = {
 197         .probe          = palm27x_asoc_probe,
 198         .remove         = palm27x_asoc_remove,
 199         .driver         = {
 200                 .name           = "palm27x-asoc",
 201                 .owner          = THIS_MODULE,
 202         },
 203 };
 204
 205 module_platform_driver(palm27x_wm9712_driver);
 206
 207 /* Module information */
 208 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 209 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 210 MODULE_LICENSE("GPL");