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         /* connected pins */
  83         if (machine_is_palmld())
  84                 snd_soc_dapm_enable_pin(dapm, "MIC1");
  85         snd_soc_dapm_enable_pin(dapm, "HPOUTL");
  86         snd_soc_dapm_enable_pin(dapm, "HPOUTR");
  87         snd_soc_dapm_enable_pin(dapm, "LOUT2");
  88         snd_soc_dapm_enable_pin(dapm, "ROUT2");
  89
  90         /* not connected pins */
  91         snd_soc_dapm_nc_pin(dapm, "OUT3");
  92         snd_soc_dapm_nc_pin(dapm, "MONOOUT");
  93         snd_soc_dapm_nc_pin(dapm, "LINEINL");
  94         snd_soc_dapm_nc_pin(dapm, "LINEINR");
  95         snd_soc_dapm_nc_pin(dapm, "PCBEEP");
  96         snd_soc_dapm_nc_pin(dapm, "PHONE");
  97         snd_soc_dapm_nc_pin(dapm, "MIC2");
  98
  99         /* Jack detection API stuff */
 100         err = snd_soc_jack_new(codec, "Headphone Jack",
 101                                 SND_JACK_HEADPHONE, &hs_jack);
 102         if (err)
 103                 return err;
 104
 105         err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 106                                 hs_jack_pins);
 107         if (err)
 108                 return err;
 109
 110         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 111                                 hs_jack_gpios);
 112
 113         return err;
 114 }
 115
 116 static struct snd_soc_dai_link palm27x_dai[] = {
 117 {
 118         .name = "AC97 HiFi",
 119         .stream_name = "AC97 HiFi",
 120         .cpu_dai_name = "pxa2xx-ac97",
 121         .codec_dai_name =  "wm9712-hifi",
 122         .codec_name = "wm9712-codec",
 123         .platform_name = "pxa-pcm-audio",
 124         .init = palm27x_ac97_init,
 125 },
 126 {
 127         .name = "AC97 Aux",
 128         .stream_name = "AC97 Aux",
 129         .cpu_dai_name = "pxa2xx-ac97-aux",
 130         .codec_dai_name = "wm9712-aux",
 131         .codec_name = "wm9712-codec",
 132         .platform_name = "pxa-pcm-audio",
 133 },
 134 };
 135
 136 static struct snd_soc_card palm27x_asoc = {
 137         .name = "Palm/PXA27x",
 138         .owner = THIS_MODULE,
 139         .dai_link = palm27x_dai,
 140         .num_links = ARRAY_SIZE(palm27x_dai),
 141         .dapm_widgets = palm27x_dapm_widgets,
 142         .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
 143         .dapm_routes = audio_map,
 144         .num_dapm_routes = ARRAY_SIZE(audio_map)
 145 };
 146
 147 static int palm27x_asoc_probe(struct platform_device *pdev)
 148 {
 149         int ret;
 150
 151         if (!(machine_is_palmtx() || machine_is_palmt5() ||
 152                 machine_is_palmld() || machine_is_palmte2()))
 153                 return -ENODEV;
 154
 155         if (!pdev->dev.platform_data) {
 156                 dev_err(&pdev->dev, "please supply platform_data\n");
 157                 return -ENODEV;
 158         }
 159
 160         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 161                         (pdev->dev.platform_data))->jack_gpio;
 162
 163         palm27x_asoc.dev = &pdev->dev;
 164
 165         ret = snd_soc_register_card(&palm27x_asoc);
 166         if (ret)
 167                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 168                         ret);
 169         return ret;
 170 }
 171
 172 static int palm27x_asoc_remove(struct platform_device *pdev)
 173 {
 174         snd_soc_unregister_card(&palm27x_asoc);
 175         return 0;
 176 }
 177
 178 static struct platform_driver palm27x_wm9712_driver = {
 179         .probe          = palm27x_asoc_probe,
 180         .remove         = palm27x_asoc_remove,
 181         .driver         = {
 182                 .name           = "palm27x-asoc",
 183                 .owner          = THIS_MODULE,
 184                 .pm     = &snd_soc_pm_ops,
 185         },
 186 };
 187
 188 module_platform_driver(palm27x_wm9712_driver);
 189
 190 /* Module information */
 191 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 192 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 193 MODULE_LICENSE("GPL");