soc/pxa/palm27x.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * linux/sound/soc/pxa/palm27x.c
0004  *
0005  * SoC Audio driver for Palm T|X, T5 and LifeDrive
0006  *
0007  * based on tosa.c
0008  *
0009  * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
0010  */
0011
0012 #include <linux/module.h>
0013 #include <linux/moduleparam.h>
0014 #include <linux/device.h>
0015 #include <linux/gpio.h>
0016
0017 #include <sound/core.h>
0018 #include <sound/pcm.h>
0019 #include <sound/soc.h>
0020 #include <sound/jack.h>
0021
0022 #include <asm/mach-types.h>
0023 #include <linux/platform_data/asoc-pxa.h>
0024 #include <linux/platform_data/asoc-palm27x.h>
0025
0026 static struct snd_soc_jack hs_jack;
0027
0028 /* Headphones jack detection DAPM pins */
0029 static struct snd_soc_jack_pin hs_jack_pins[] = {
0030     {
0031         .pin    = "Headphone Jack",
0032         .mask   = SND_JACK_HEADPHONE,
0033     },
0034 };
0035
0036 /* Headphones jack detection gpios */
0037 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
0038     [0] = {
0039         /* gpio is set on per-platform basis */
0040         .name           = "hp-gpio",
0041         .report         = SND_JACK_HEADPHONE,
0042         .debounce_time  = 200,
0043     },
0044 };
0045
0046 /* Palm27x machine dapm widgets */
0047 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
0048     SND_SOC_DAPM_HP("Headphone Jack", NULL),
0049     SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
0050     SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
0051 };
0052
0053 /* PalmTX audio map */
0054 static const struct snd_soc_dapm_route audio_map[] = {
0055     /* headphone connected to HPOUTL, HPOUTR */
0056     {"Headphone Jack", NULL, "HPOUTL"},
0057     {"Headphone Jack", NULL, "HPOUTR"},
0058
0059     /* ext speaker connected to ROUT2, LOUT2 */
0060     {"Ext. Speaker", NULL, "LOUT2"},
0061     {"Ext. Speaker", NULL, "ROUT2"},
0062
0063     /* mic connected to MIC1 */
0064     {"MIC1", NULL, "Ext. Microphone"},
0065 };
0066
0067 static struct snd_soc_card palm27x_asoc;
0068
0069 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
0070 {
0071     int err;
0072
0073     /* Jack detection API stuff */
0074     err = snd_soc_card_jack_new_pins(rtd->card, "Headphone Jack",
0075                      SND_JACK_HEADPHONE, &hs_jack,
0076                      hs_jack_pins,
0077                      ARRAY_SIZE(hs_jack_pins));
0078     if (err)
0079         return err;
0080
0081     err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
0082                 hs_jack_gpios);
0083
0084     return err;
0085 }
0086
0087 SND_SOC_DAILINK_DEFS(hifi,
0088     DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
0089     DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
0090     DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
0091
0092 SND_SOC_DAILINK_DEFS(aux,
0093     DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
0094     DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
0095     DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
0096
0097 static struct snd_soc_dai_link palm27x_dai[] = {
0098 {
0099     .name = "AC97 HiFi",
0100     .stream_name = "AC97 HiFi",
0101     .init = palm27x_ac97_init,
0102     SND_SOC_DAILINK_REG(hifi),
0103 },
0104 {
0105     .name = "AC97 Aux",
0106     .stream_name = "AC97 Aux",
0107     SND_SOC_DAILINK_REG(aux),
0108 },
0109 };
0110
0111 static struct snd_soc_card palm27x_asoc = {
0112     .name = "Palm/PXA27x",
0113     .owner = THIS_MODULE,
0114     .dai_link = palm27x_dai,
0115     .num_links = ARRAY_SIZE(palm27x_dai),
0116     .dapm_widgets = palm27x_dapm_widgets,
0117     .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
0118     .dapm_routes = audio_map,
0119     .num_dapm_routes = ARRAY_SIZE(audio_map),
0120     .fully_routed = true,
0121 };
0122
0123 static int palm27x_asoc_probe(struct platform_device *pdev)
0124 {
0125     int ret;
0126
0127     if (!(machine_is_palmtx() || machine_is_palmt5() ||
0128         machine_is_palmld() || machine_is_palmte2()))
0129         return -ENODEV;
0130
0131     if (!pdev->dev.platform_data) {
0132         dev_err(&pdev->dev, "please supply platform_data\n");
0133         return -ENODEV;
0134     }
0135
0136     hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
0137             (pdev->dev.platform_data))->jack_gpio;
0138
0139     palm27x_asoc.dev = &pdev->dev;
0140
0141     ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
0142     if (ret)
0143         dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
0144             ret);
0145     return ret;
0146 }
0147
0148 static struct platform_driver palm27x_wm9712_driver = {
0149     .probe      = palm27x_asoc_probe,
0150     .driver     = {
0151         .name       = "palm27x-asoc",
0152         .pm     = &snd_soc_pm_ops,
0153     },
0154 };
0155
0156 module_platform_driver(palm27x_wm9712_driver);
0157
0158 /* Module information */
0159 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
0160 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
0161 MODULE_LICENSE("GPL");
0162 MODULE_ALIAS("platform:palm27x-asoc");