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
  30#include "../codecs/wm9712.h"
  31#include "pxa2xx-ac97.h"
  32
  33static struct snd_soc_jack hs_jack;
  34
  35/* Headphones jack detection DAPM pins */
  36static 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 */
  44static 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 */
  54static 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 */
  61static 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        {"MIC1", NULL, "Ext. Microphone"},
  72};
  73
  74static struct snd_soc_card palm27x_asoc;
  75
  76static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
  77{
  78        int err;
  79
  80        /* Jack detection API stuff */
  81        err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
  82                                    SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
  83                                    ARRAY_SIZE(hs_jack_pins));
  84        if (err)
  85                return err;
  86
  87        err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
  88                                hs_jack_gpios);
  89
  90        return err;
  91}
  92
  93static struct snd_soc_dai_link palm27x_dai[] = {
  94{
  95        .name = "AC97 HiFi",
  96        .stream_name = "AC97 HiFi",
  97        .cpu_dai_name = "pxa2xx-ac97",
  98        .codec_dai_name =  "wm9712-hifi",
  99        .codec_name = "wm9712-codec",
 100        .platform_name = "pxa-pcm-audio",
 101        .init = palm27x_ac97_init,
 102},
 103{
 104        .name = "AC97 Aux",
 105        .stream_name = "AC97 Aux",
 106        .cpu_dai_name = "pxa2xx-ac97-aux",
 107        .codec_dai_name = "wm9712-aux",
 108        .codec_name = "wm9712-codec",
 109        .platform_name = "pxa-pcm-audio",
 110},
 111};
 112
 113static struct snd_soc_card palm27x_asoc = {
 114        .name = "Palm/PXA27x",
 115        .owner = THIS_MODULE,
 116        .dai_link = palm27x_dai,
 117        .num_links = ARRAY_SIZE(palm27x_dai),
 118        .dapm_widgets = palm27x_dapm_widgets,
 119        .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
 120        .dapm_routes = audio_map,
 121        .num_dapm_routes = ARRAY_SIZE(audio_map),
 122        .fully_routed = true,
 123};
 124
 125static int palm27x_asoc_probe(struct platform_device *pdev)
 126{
 127        int ret;
 128
 129        if (!(machine_is_palmtx() || machine_is_palmt5() ||
 130                machine_is_palmld() || machine_is_palmte2()))
 131                return -ENODEV;
 132
 133        if (!pdev->dev.platform_data) {
 134                dev_err(&pdev->dev, "please supply platform_data\n");
 135                return -ENODEV;
 136        }
 137
 138        hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 139                        (pdev->dev.platform_data))->jack_gpio;
 140
 141        palm27x_asoc.dev = &pdev->dev;
 142
 143        ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
 144        if (ret)
 145                dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 146                        ret);
 147        return ret;
 148}
 149
 150static struct platform_driver palm27x_wm9712_driver = {
 151        .probe          = palm27x_asoc_probe,
 152        .driver         = {
 153                .name           = "palm27x-asoc",
 154                .pm     = &snd_soc_pm_ops,
 155        },
 156};
 157
 158module_platform_driver(palm27x_wm9712_driver);
 159
 160/* Module information */
 161MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 162MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 163MODULE_LICENSE("GPL");
 164MODULE_ALIAS("platform:palm27x-asoc");
 165