LXR linux/sound/soc/pxa/ttc-dkb.c

   1/*
   2 * linux/sound/soc/pxa/ttc_dkb.c
   3 *
   4 * Copyright (C) 2012 Marvell International Ltd.
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; either version 2 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 *
  20 */
  21#include <linux/module.h>
  22#include <linux/moduleparam.h>
  23#include <sound/core.h>
  24#include <sound/pcm.h>
  25#include <sound/soc.h>
  26#include <sound/jack.h>
  27#include <asm/mach-types.h>
  28#include <sound/pcm_params.h>
  29#include "../codecs/88pm860x-codec.h"
  30
  31static struct snd_soc_jack hs_jack, mic_jack;
  32
  33static struct snd_soc_jack_pin hs_jack_pins[] = {
  34        { .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, },
  35};
  36
  37static struct snd_soc_jack_pin mic_jack_pins[] = {
  38        { .pin = "Headset Mic 2",       .mask = SND_JACK_MICROPHONE, },
  39};
  40
  41/* ttc machine dapm widgets */
  42static const struct snd_soc_dapm_widget ttc_dapm_widgets[] = {
  43        SND_SOC_DAPM_HP("Headset Stereophone", NULL),
  44        SND_SOC_DAPM_LINE("Lineout Out 1", NULL),
  45        SND_SOC_DAPM_LINE("Lineout Out 2", NULL),
  46        SND_SOC_DAPM_SPK("Ext Speaker", NULL),
  47        SND_SOC_DAPM_MIC("Ext Mic 1", NULL),
  48        SND_SOC_DAPM_MIC("Headset Mic 2", NULL),
  49        SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
  50};
  51
  52/* ttc machine audio map */
  53static const struct snd_soc_dapm_route ttc_audio_map[] = {
  54        {"Headset Stereophone", NULL, "HS1"},
  55        {"Headset Stereophone", NULL, "HS2"},
  56
  57        {"Ext Speaker", NULL, "LSP"},
  58        {"Ext Speaker", NULL, "LSN"},
  59
  60        {"Lineout Out 1", NULL, "LINEOUT1"},
  61        {"Lineout Out 2", NULL, "LINEOUT2"},
  62
  63        {"MIC1P", NULL, "Mic1 Bias"},
  64        {"MIC1N", NULL, "Mic1 Bias"},
  65        {"Mic1 Bias", NULL, "Ext Mic 1"},
  66
  67        {"MIC2P", NULL, "Mic1 Bias"},
  68        {"MIC2N", NULL, "Mic1 Bias"},
  69        {"Mic1 Bias", NULL, "Headset Mic 2"},
  70
  71        {"MIC3P", NULL, "Mic3 Bias"},
  72        {"MIC3N", NULL, "Mic3 Bias"},
  73        {"Mic3 Bias", NULL, "Ext Mic 3"},
  74};
  75
  76static int ttc_pm860x_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
  81        snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
  82        snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
  83
  84        /* Headset jack detection */
  85        snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
  86                        | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
  87                        &hs_jack);
  88        snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
  89                              hs_jack_pins);
  90        snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
  91                         &mic_jack);
  92        snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
  93                              mic_jack_pins);
  94
  95        /* headphone, microphone detection & headset short detection */
  96        pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
  97                              SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
  98        pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
  99
 100        return 0;
 101}
 102
 103/* ttc/td-dkb digital audio interface glue - connects codec <--> CPU */
 104static struct snd_soc_dai_link ttc_pm860x_hifi_dai[] = {
 105{
 106         .name = "88pm860x i2s",
 107         .stream_name = "audio playback",
 108         .codec_name = "88pm860x-codec",
 109         .platform_name = "mmp-pcm-audio",
 110         .cpu_dai_name = "pxa-ssp-dai.1",
 111         .codec_dai_name = "88pm860x-i2s",
 112         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 113                        SND_SOC_DAIFMT_CBM_CFM,
 114         .init = ttc_pm860x_init,
 115},
 116};
 117
 118/* ttc/td audio machine driver */
 119static struct snd_soc_card ttc_dkb_card = {
 120        .name = "ttc-dkb-hifi",
 121        .owner = THIS_MODULE,
 122        .dai_link = ttc_pm860x_hifi_dai,
 123        .num_links = ARRAY_SIZE(ttc_pm860x_hifi_dai),
 124
 125        .dapm_widgets = ttc_dapm_widgets,
 126        .num_dapm_widgets = ARRAY_SIZE(ttc_dapm_widgets),
 127        .dapm_routes = ttc_audio_map,
 128        .num_dapm_routes = ARRAY_SIZE(ttc_audio_map),
 129};
 130
 131static int ttc_dkb_probe(struct platform_device *pdev)
 132{
 133        struct snd_soc_card *card = &ttc_dkb_card;
 134        int ret;
 135
 136        card->dev = &pdev->dev;
 137
 138        ret = snd_soc_register_card(card);
 139        if (ret)
 140                dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 141                        ret);
 142
 143        return ret;
 144}
 145
 146static int ttc_dkb_remove(struct platform_device *pdev)
 147{
 148        struct snd_soc_card *card = platform_get_drvdata(pdev);
 149
 150        snd_soc_unregister_card(card);
 151
 152        return 0;
 153}
 154
 155static struct platform_driver ttc_dkb_driver = {
 156        .driver         = {
 157                .name   = "ttc-dkb-audio",
 158                .owner  = THIS_MODULE,
 159                .pm     = &snd_soc_pm_ops,
 160        },
 161        .probe          = ttc_dkb_probe,
 162        .remove         = ttc_dkb_remove,
 163};
 164
 165module_platform_driver(ttc_dkb_driver);
 166
 167/* Module information */
 168MODULE_AUTHOR("Qiao Zhou, <zhouqiao@marvell.com>");
 169MODULE_DESCRIPTION("ALSA SoC TTC DKB");
 170MODULE_LICENSE("GPL");
 171MODULE_ALIAS("platform:ttc-dkb-audio");
 172