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/soc-dapm.h>
  25#include <sound/jack.h>
  26
  27#include <asm/mach-types.h>
  28#include <mach/audio.h>
  29#include <mach/palmasoc.h>
  30
  31#include "../codecs/wm9712.h"
  32#include "pxa2xx-pcm.h"
  33#include "pxa2xx-ac97.h"
  34
  35static struct snd_soc_jack hs_jack;
  36
  37/* Headphones jack detection DAPM pins */
  38static struct snd_soc_jack_pin hs_jack_pins[] = {
  39        {
  40                .pin    = "Headphone Jack",
  41                .mask   = SND_JACK_HEADPHONE,
  42        },
  43};
  44
  45/* Headphones jack detection gpios */
  46static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  47        [0] = {
  48                /* gpio is set on per-platform basis */
  49                .name           = "hp-gpio",
  50                .report         = SND_JACK_HEADPHONE,
  51                .debounce_time  = 200,
  52        },
  53};
  54
  55/* Palm27x machine dapm widgets */
  56static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  57        SND_SOC_DAPM_HP("Headphone Jack", NULL),
  58        SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  59        SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  60};
  61
  62/* PalmTX audio map */
  63static const struct snd_soc_dapm_route audio_map[] = {
  64        /* headphone connected to HPOUTL, HPOUTR */
  65        {"Headphone Jack", NULL, "HPOUTL"},
  66        {"Headphone Jack", NULL, "HPOUTR"},
  67
  68        /* ext speaker connected to ROUT2, LOUT2 */
  69        {"Ext. Speaker", NULL, "LOUT2"},
  70        {"Ext. Speaker", NULL, "ROUT2"},
  71
  72        /* mic connected to MIC1 */
  73        {"Ext. Microphone", NULL, "MIC1"},
  74};
  75
  76static struct snd_soc_card palm27x_asoc;
  77
  78static int palm27x_ac97_init(struct snd_soc_codec *codec)
  79{
  80        int err;
  81
  82        /* add palm27x specific widgets */
  83        err = snd_soc_dapm_new_controls(codec, 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(codec, 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(codec, "MIC1");
  96        snd_soc_dapm_enable_pin(codec, "HPOUTL");
  97        snd_soc_dapm_enable_pin(codec, "HPOUTR");
  98        snd_soc_dapm_enable_pin(codec, "LOUT2");
  99        snd_soc_dapm_enable_pin(codec, "ROUT2");
 100
 101        /* not connected pins */
 102        snd_soc_dapm_nc_pin(codec, "OUT3");
 103        snd_soc_dapm_nc_pin(codec, "MONOOUT");
 104        snd_soc_dapm_nc_pin(codec, "LINEINL");
 105        snd_soc_dapm_nc_pin(codec, "LINEINR");
 106        snd_soc_dapm_nc_pin(codec, "PCBEEP");
 107        snd_soc_dapm_nc_pin(codec, "PHONE");
 108        snd_soc_dapm_nc_pin(codec, "MIC2");
 109
 110        err = snd_soc_dapm_sync(codec);
 111        if (err)
 112                return err;
 113
 114        /* Jack detection API stuff */
 115        err = snd_soc_jack_new(&palm27x_asoc, "Headphone Jack",
 116                                SND_JACK_HEADPHONE, &hs_jack);
 117        if (err)
 118                return err;
 119
 120        err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 121                                hs_jack_pins);
 122        if (err)
 123                return err;
 124
 125        err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 126                                hs_jack_gpios);
 127
 128        return err;
 129}
 130
 131static struct snd_soc_dai_link palm27x_dai[] = {
 132{
 133        .name = "AC97 HiFi",
 134        .stream_name = "AC97 HiFi",
 135        .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
 136        .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
 137        .init = palm27x_ac97_init,
 138},
 139{
 140        .name = "AC97 Aux",
 141        .stream_name = "AC97 Aux",
 142        .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
 143        .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
 144},
 145};
 146
 147static struct snd_soc_card palm27x_asoc = {
 148        .name = "Palm/PXA27x",
 149        .platform = &pxa2xx_soc_platform,
 150        .dai_link = palm27x_dai,
 151        .num_links = ARRAY_SIZE(palm27x_dai),
 152};
 153
 154static struct snd_soc_device palm27x_snd_devdata = {
 155        .card = &palm27x_asoc,
 156        .codec_dev = &soc_codec_dev_wm9712,
 157};
 158
 159static struct platform_device *palm27x_snd_device;
 160
 161static int palm27x_asoc_probe(struct platform_device *pdev)
 162{
 163        int ret;
 164
 165        if (!(machine_is_palmtx() || machine_is_palmt5() ||
 166                machine_is_palmld() || machine_is_palmte2()))
 167                return -ENODEV;
 168
 169        if (!pdev->dev.platform_data) {
 170                dev_err(&pdev->dev, "please supply platform_data\n");
 171                return -ENODEV;
 172        }
 173
 174        hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 175                        (pdev->dev.platform_data))->jack_gpio;
 176
 177        palm27x_snd_device = platform_device_alloc("soc-audio", -1);
 178        if (!palm27x_snd_device)
 179                return -ENOMEM;
 180
 181        platform_set_drvdata(palm27x_snd_device, &palm27x_snd_devdata);
 182        palm27x_snd_devdata.dev = &palm27x_snd_device->dev;
 183        ret = platform_device_add(palm27x_snd_device);
 184
 185        if (ret != 0)
 186                goto put_device;
 187
 188        return 0;
 189
 190put_device:
 191        platform_device_put(palm27x_snd_device);
 192
 193        return ret;
 194}
 195
 196static int __devexit palm27x_asoc_remove(struct platform_device *pdev)
 197{
 198        platform_device_unregister(palm27x_snd_device);
 199        return 0;
 200}
 201
 202static struct platform_driver palm27x_wm9712_driver = {
 203        .probe          = palm27x_asoc_probe,
 204        .remove         = __devexit_p(palm27x_asoc_remove),
 205        .driver         = {
 206                .name           = "palm27x-asoc",
 207                .owner          = THIS_MODULE,
 208        },
 209};
 210
 211static int __init palm27x_asoc_init(void)
 212{
 213        return platform_driver_register(&palm27x_wm9712_driver);
 214}
 215
 216static void __exit palm27x_asoc_exit(void)
 217{
 218        platform_driver_unregister(&palm27x_wm9712_driver);
 219}
 220
 221module_init(palm27x_asoc_init);
 222module_exit(palm27x_asoc_exit);
 223
 224/* Module information */
 225MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 226MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 227MODULE_LICENSE("GPL");
 228