LXR linux/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
  30static struct snd_soc_jack hs_jack;
  31
  32/* Headphones jack detection DAPM pins */
  33static struct snd_soc_jack_pin hs_jack_pins[] = {
  34        {
  35                .pin    = "Headphone Jack",
  36                .mask   = SND_JACK_HEADPHONE,
  37        },
  38};
  39
  40/* Headphones jack detection gpios */
  41static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  42        [0] = {
  43                /* gpio is set on per-platform basis */
  44                .name           = "hp-gpio",
  45                .report         = SND_JACK_HEADPHONE,
  46                .debounce_time  = 200,
  47        },
  48};
  49
  50/* Palm27x machine dapm widgets */
  51static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  52        SND_SOC_DAPM_HP("Headphone Jack", NULL),
  53        SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  54        SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  55};
  56
  57/* PalmTX audio map */
  58static const struct snd_soc_dapm_route audio_map[] = {
  59        /* headphone connected to HPOUTL, HPOUTR */
  60        {"Headphone Jack", NULL, "HPOUTL"},
  61        {"Headphone Jack", NULL, "HPOUTR"},
  62
  63        /* ext speaker connected to ROUT2, LOUT2 */
  64        {"Ext. Speaker", NULL, "LOUT2"},
  65        {"Ext. Speaker", NULL, "ROUT2"},
  66
  67        /* mic connected to MIC1 */
  68        {"MIC1", NULL, "Ext. Microphone"},
  69};
  70
  71static struct snd_soc_card palm27x_asoc;
  72
  73static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
  74{
  75        int err;
  76
  77        /* Jack detection API stuff */
  78        err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
  79                                    SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
  80                                    ARRAY_SIZE(hs_jack_pins));
  81        if (err)
  82                return err;
  83
  84        err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
  85                                hs_jack_gpios);
  86
  87        return err;
  88}
  89
  90static struct snd_soc_dai_link palm27x_dai[] = {
  91{
  92        .name = "AC97 HiFi",
  93        .stream_name = "AC97 HiFi",
  94        .cpu_dai_name = "pxa2xx-ac97",
  95        .codec_dai_name =  "wm9712-hifi",
  96        .codec_name = "wm9712-codec",
  97        .platform_name = "pxa-pcm-audio",
  98        .init = palm27x_ac97_init,
  99},
 100{
 101        .name = "AC97 Aux",
 102        .stream_name = "AC97 Aux",
 103        .cpu_dai_name = "pxa2xx-ac97-aux",
 104        .codec_dai_name = "wm9712-aux",
 105        .codec_name = "wm9712-codec",
 106        .platform_name = "pxa-pcm-audio",
 107},
 108};
 109
 110static struct snd_soc_card palm27x_asoc = {
 111        .name = "Palm/PXA27x",
 112        .owner = THIS_MODULE,
 113        .dai_link = palm27x_dai,
 114        .num_links = ARRAY_SIZE(palm27x_dai),
 115        .dapm_widgets = palm27x_dapm_widgets,
 116        .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
 117        .dapm_routes = audio_map,
 118        .num_dapm_routes = ARRAY_SIZE(audio_map),
 119        .fully_routed = true,
 120};
 121
 122static int palm27x_asoc_probe(struct platform_device *pdev)
 123{
 124        int ret;
 125
 126        if (!(machine_is_palmtx() || machine_is_palmt5() ||
 127                machine_is_palmld() || machine_is_palmte2()))
 128                return -ENODEV;
 129
 130        if (!pdev->dev.platform_data) {
 131                dev_err(&pdev->dev, "please supply platform_data\n");
 132                return -ENODEV;
 133        }
 134
 135        hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 136                        (pdev->dev.platform_data))->jack_gpio;
 137
 138        palm27x_asoc.dev = &pdev->dev;
 139
 140        ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
 141        if (ret)
 142                dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 143                        ret);
 144        return ret;
 145}
 146
 147static struct platform_driver palm27x_wm9712_driver = {
 148        .probe          = palm27x_asoc_probe,
 149        .driver         = {
 150                .name           = "palm27x-asoc",
 151                .pm     = &snd_soc_pm_ops,
 152        },
 153};
 154
 155module_platform_driver(palm27x_wm9712_driver);
 156
 157/* Module information */
 158MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 159MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 160MODULE_LICENSE("GPL");
 161MODULE_ALIAS("platform:palm27x-asoc");
 162