LXR linux/sound/soc/pxa/palm27x.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/sound/soc/pxa/palm27x.c
   4 *
   5 * SoC Audio driver for Palm T|X, T5 and LifeDrive
   6 *
   7 * based on tosa.c
   8 *
   9 * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
  10 */
  11
  12#include <linux/module.h>
  13#include <linux/moduleparam.h>
  14#include <linux/device.h>
  15#include <linux/gpio.h>
  16
  17#include <sound/core.h>
  18#include <sound/pcm.h>
  19#include <sound/soc.h>
  20#include <sound/jack.h>
  21
  22#include <asm/mach-types.h>
  23#include <mach/audio.h>
  24#include <linux/platform_data/asoc-palm27x.h>
  25
  26static struct snd_soc_jack hs_jack;
  27
  28/* Headphones jack detection DAPM pins */
  29static struct snd_soc_jack_pin hs_jack_pins[] = {
  30        {
  31                .pin    = "Headphone Jack",
  32                .mask   = SND_JACK_HEADPHONE,
  33        },
  34};
  35
  36/* Headphones jack detection gpios */
  37static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  38        [0] = {
  39                /* gpio is set on per-platform basis */
  40                .name           = "hp-gpio",
  41                .report         = SND_JACK_HEADPHONE,
  42                .debounce_time  = 200,
  43        },
  44};
  45
  46/* Palm27x machine dapm widgets */
  47static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  48        SND_SOC_DAPM_HP("Headphone Jack", NULL),
  49        SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  50        SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  51};
  52
  53/* PalmTX audio map */
  54static const struct snd_soc_dapm_route audio_map[] = {
  55        /* headphone connected to HPOUTL, HPOUTR */
  56        {"Headphone Jack", NULL, "HPOUTL"},
  57        {"Headphone Jack", NULL, "HPOUTR"},
  58
  59        /* ext speaker connected to ROUT2, LOUT2 */
  60        {"Ext. Speaker", NULL, "LOUT2"},
  61        {"Ext. Speaker", NULL, "ROUT2"},
  62
  63        /* mic connected to MIC1 */
  64        {"MIC1", NULL, "Ext. Microphone"},
  65};
  66
  67static struct snd_soc_card palm27x_asoc;
  68
  69static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
  70{
  71        int err;
  72
  73        /* Jack detection API stuff */
  74        err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
  75                                    SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
  76                                    ARRAY_SIZE(hs_jack_pins));
  77        if (err)
  78                return err;
  79
  80        err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
  81                                hs_jack_gpios);
  82
  83        return err;
  84}
  85
  86SND_SOC_DAILINK_DEFS(hifi,
  87        DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
  88        DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
  89        DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  90
  91SND_SOC_DAILINK_DEFS(aux,
  92        DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
  93        DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
  94        DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  95
  96static struct snd_soc_dai_link palm27x_dai[] = {
  97{
  98        .name = "AC97 HiFi",
  99        .stream_name = "AC97 HiFi",
 100        .init = palm27x_ac97_init,
 101        SND_SOC_DAILINK_REG(hifi),
 102},
 103{
 104        .name = "AC97 Aux",
 105        .stream_name = "AC97 Aux",
 106        SND_SOC_DAILINK_REG(aux),
 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