1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * e800-wm9712.c  --  SoC audio for e800
  4 *
  5 * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
  6 */
  7
  8#include <linux/module.h>
  9#include <linux/moduleparam.h>
 10#include <linux/gpio.h>
 11
 12#include <sound/core.h>
 13#include <sound/pcm.h>
 14#include <sound/soc.h>
 15
 16#include <asm/mach-types.h>
 17#include <mach/audio.h>
 18#include <mach/eseries-gpio.h>
 19
 20static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
 21				struct snd_kcontrol *kcontrol, int event)
 22{
 23	if (event & SND_SOC_DAPM_PRE_PMU)
 24		gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
 25	else if (event & SND_SOC_DAPM_POST_PMD)
 26		gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);
 27
 28	return 0;
 29}
 30
 31static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
 32				struct snd_kcontrol *kcontrol, int event)
 33{
 34	if (event & SND_SOC_DAPM_PRE_PMU)
 35		gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
 36	else if (event & SND_SOC_DAPM_POST_PMD)
 37		gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);
 38
 39	return 0;
 40}
 41
 42static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
 43	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 44	SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
 45	SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
 46	SND_SOC_DAPM_SPK("Speaker", NULL),
 47	SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
 48			e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
 49			SND_SOC_DAPM_POST_PMD),
 50	SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
 51			e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
 52			SND_SOC_DAPM_POST_PMD),
 53};
 54
 55static const struct snd_soc_dapm_route audio_map[] = {
 56	{"Headphone Jack", NULL, "HPOUTL"},
 57	{"Headphone Jack", NULL, "HPOUTR"},
 58	{"Headphone Jack", NULL, "Headphone Amp"},
 59
 60	{"Speaker Amp", NULL, "MONOOUT"},
 61	{"Speaker", NULL, "Speaker Amp"},
 62
 63	{"MIC1", NULL, "Mic (Internal1)"},
 64	{"MIC2", NULL, "Mic (Internal2)"},
 65};
 66
 67
 68SND_SOC_DAILINK_DEFS(ac97,
 69	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
 70	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
 71	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 72
 73SND_SOC_DAILINK_DEFS(ac97_aux,
 74	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
 75	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
 76	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 77
 78static struct snd_soc_dai_link e800_dai[] = {
 79	{
 80		.name = "AC97",
 81		.stream_name = "AC97 HiFi",
 82		SND_SOC_DAILINK_REG(ac97),
 83	},
 84	{
 85		.name = "AC97 Aux",
 86		.stream_name = "AC97 Aux",
 87		SND_SOC_DAILINK_REG(ac97_aux),
 88	},
 89};
 90
 91static struct snd_soc_card e800 = {
 92	.name = "Toshiba e800",
 93	.owner = THIS_MODULE,
 94	.dai_link = e800_dai,
 95	.num_links = ARRAY_SIZE(e800_dai),
 96
 97	.dapm_widgets = e800_dapm_widgets,
 98	.num_dapm_widgets = ARRAY_SIZE(e800_dapm_widgets),
 99	.dapm_routes = audio_map,
100	.num_dapm_routes = ARRAY_SIZE(audio_map),
101};
102
103static struct gpio e800_audio_gpios[] = {
104	{ GPIO_E800_SPK_AMP_ON, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
105	{ GPIO_E800_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
106};
107
108static int e800_probe(struct platform_device *pdev)
109{
110	struct snd_soc_card *card = &e800;
111	int ret;
112
113	ret = gpio_request_array(e800_audio_gpios,
114				 ARRAY_SIZE(e800_audio_gpios));
115	if (ret)
116		return ret;
117
118	card->dev = &pdev->dev;
119
120	ret = devm_snd_soc_register_card(&pdev->dev, card);
121	if (ret) {
122		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
123			ret);
124		gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
125	}
126	return ret;
127}
128
129static int e800_remove(struct platform_device *pdev)
130{
131	gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
132	return 0;
133}
134
135static struct platform_driver e800_driver = {
136	.driver		= {
137		.name	= "e800-audio",
138		.pm     = &snd_soc_pm_ops,
139	},
140	.probe		= e800_probe,
141	.remove		= e800_remove,
142};
143
144module_platform_driver(e800_driver);
145
146/* Module information */
147MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
148MODULE_DESCRIPTION("ALSA SoC driver for e800");
149MODULE_LICENSE("GPL v2");
150MODULE_ALIAS("platform:e800-audio");