1 /*
2 * linux/sound/soc/pxa/palm27x.c
3 *
4 * SoC Audio driver for Palm T|X, T5 and LifeDrive
5 *
6 * based on tosa.c
7 *
8 * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 */
15
16 #include <linux/module.h>
17 #include <linux/moduleparam.h>
18 #include <linux/device.h>
19 #include <linux/gpio.h>
20
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/soc.h>
24 #include <sound/jack.h>
25
26 #include <asm/mach-types.h>
27 #include <mach/audio.h>
28 #include <linux/platform_data/asoc-palm27x.h>
29
30 static struct snd_soc_jack hs_jack;
31
32 /* Headphones jack detection DAPM pins */
33 static struct snd_soc_jack_pin hs_jack_pins[] = {
34 {
35 .pin = "Headphone Jack",
36 .mask = SND_JACK_HEADPHONE,
37 },
38 };
39
40 /* Headphones jack detection gpios */
41 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
42 [0] = {
43 /* gpio is set on per-platform basis */
44 .name = "hp-gpio",
45 .report = SND_JACK_HEADPHONE,
46 .debounce_time = 200,
47 },
48 };
49
50 /* Palm27x machine dapm widgets */
51 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
52 SND_SOC_DAPM_HP("Headphone Jack", NULL),
53 SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
54 SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
55 };
56
57 /* PalmTX audio map */
58 static const struct snd_soc_dapm_route audio_map[] = {
59 /* headphone connected to HPOUTL, HPOUTR */
60 {"Headphone Jack", NULL, "HPOUTL"},
61 {"Headphone Jack", NULL, "HPOUTR"},
62
63 /* ext speaker connected to ROUT2, LOUT2 */
64 {"Ext. Speaker", NULL, "LOUT2"},
65 {"Ext. Speaker", NULL, "ROUT2"},
66
67 /* mic connected to MIC1 */
68 {"MIC1", NULL, "Ext. Microphone"},
69 };
70
71 static struct snd_soc_card palm27x_asoc;
72
palm27x_ac97_init(struct snd_soc_pcm_runtime * rtd)73 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
74 {
75 int err;
76
77 /* Jack detection API stuff */
78 err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
79 SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
80 ARRAY_SIZE(hs_jack_pins));
81 if (err)
82 return err;
83
84 err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
85 hs_jack_gpios);
86
87 return err;
88 }
89
90 static struct snd_soc_dai_link palm27x_dai[] = {
91 {
92 .name = "AC97 HiFi",
93 .stream_name = "AC97 HiFi",
94 .cpu_dai_name = "pxa2xx-ac97",
95 .codec_dai_name = "wm9712-hifi",
96 .codec_name = "wm9712-codec",
97 .platform_name = "pxa-pcm-audio",
98 .init = palm27x_ac97_init,
99 },
100 {
101 .name = "AC97 Aux",
102 .stream_name = "AC97 Aux",
103 .cpu_dai_name = "pxa2xx-ac97-aux",
104 .codec_dai_name = "wm9712-aux",
105 .codec_name = "wm9712-codec",
106 .platform_name = "pxa-pcm-audio",
107 },
108 };
109
110 static 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
palm27x_asoc_probe(struct platform_device * pdev)122 static 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
147 static 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
155 module_platform_driver(palm27x_wm9712_driver);
156
157 /* Module information */
158 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
159 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
160 MODULE_LICENSE("GPL");
161 MODULE_ALIAS("platform:palm27x-asoc");
162
