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
20 static 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
31 static 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
42 static 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
55 static 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
68 SND_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
73 SND_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
78 static 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
91 static 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
103 static 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
108 static 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
129 static 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
135 static 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
144 module_platform_driver(e800_driver);
145
146 /* Module information */
147 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
148 MODULE_DESCRIPTION("ALSA SoC driver for e800");
149 MODULE_LICENSE("GPL v2");
150 MODULE_ALIAS("platform:e800-audio");
151
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