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        {"Ext. Microphone", NULL, "MIC1"},
  72};
  73
  74static struct snd_soc_card palm27x_asoc;
  75
  76static 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
 116static 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
 136static 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
 147static 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
 172static int palm27x_asoc_remove(struct platform_device *pdev)
 173{
 174        snd_soc_unregister_card(&palm27x_asoc);
 175        return 0;
 176}
 177
 178static 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
 188module_platform_driver(palm27x_wm9712_driver);
 189
 190/* Module information */
 191MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 192MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 193MODULE_LICENSE("GPL");
 194