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 #include "../codecs/wm9712.h"
31 #include "pxa2xx-ac97.h"
32
33 static struct snd_soc_jack hs_jack;
34
35 /* Headphones jack detection DAPM pins */
36 static struct snd_soc_jack_pin hs_jack_pins[] = {
37 {
38 .pin = "Headphone Jack",
39 .mask = SND_JACK_HEADPHONE,
40 },
41 };
42
43 /* Headphones jack detection gpios */
44 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
45 [0] = {
46 /* gpio is set on per-platform basis */
47 .name = "hp-gpio",
48 .report = SND_JACK_HEADPHONE,
49 .debounce_time = 200,
50 },
51 };
52
53 /* Palm27x machine dapm widgets */
54 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
55 SND_SOC_DAPM_HP("Headphone Jack", NULL),
56 SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
57 SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
58 };
59
60 /* PalmTX audio map */
61 static const struct snd_soc_dapm_route audio_map[] = {
62 /* headphone connected to HPOUTL, HPOUTR */
63 {"Headphone Jack", NULL, "HPOUTL"},
64 {"Headphone Jack", NULL, "HPOUTR"},
65
66 /* ext speaker connected to ROUT2, LOUT2 */
67 {"Ext. Speaker", NULL, "LOUT2"},
68 {"Ext. Speaker", NULL, "ROUT2"},
69
70 /* mic connected to MIC1 */
71 {"MIC1", NULL, "Ext. Microphone"},
72 };
73
74 static struct snd_soc_card palm27x_asoc;
75
palm27x_ac97_init(struct snd_soc_pcm_runtime * rtd)76 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
77 {
78 int err;
79
80 /* Jack detection API stuff */
81 err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
82 SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
83 ARRAY_SIZE(hs_jack_pins));
84 if (err)
85 return err;
86
87 err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
88 hs_jack_gpios);
89
90 return err;
91 }
92
93 static struct snd_soc_dai_link palm27x_dai[] = {
94 {
95 .name = "AC97 HiFi",
96 .stream_name = "AC97 HiFi",
97 .cpu_dai_name = "pxa2xx-ac97",
98 .codec_dai_name = "wm9712-hifi",
99 .codec_name = "wm9712-codec",
100 .platform_name = "pxa-pcm-audio",
101 .init = palm27x_ac97_init,
102 },
103 {
104 .name = "AC97 Aux",
105 .stream_name = "AC97 Aux",
106 .cpu_dai_name = "pxa2xx-ac97-aux",
107 .codec_dai_name = "wm9712-aux",
108 .codec_name = "wm9712-codec",
109 .platform_name = "pxa-pcm-audio",
110 },
111 };
112
113 static struct snd_soc_card palm27x_asoc = {
114 .name = "Palm/PXA27x",
115 .owner = THIS_MODULE,
116 .dai_link = palm27x_dai,
117 .num_links = ARRAY_SIZE(palm27x_dai),
118 .dapm_widgets = palm27x_dapm_widgets,
119 .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
120 .dapm_routes = audio_map,
121 .num_dapm_routes = ARRAY_SIZE(audio_map),
122 .fully_routed = true,
123 };
124
palm27x_asoc_probe(struct platform_device * pdev)125 static int palm27x_asoc_probe(struct platform_device *pdev)
126 {
127 int ret;
128
129 if (!(machine_is_palmtx() || machine_is_palmt5() ||
130 machine_is_palmld() || machine_is_palmte2()))
131 return -ENODEV;
132
133 if (!pdev->dev.platform_data) {
134 dev_err(&pdev->dev, "please supply platform_data\n");
135 return -ENODEV;
136 }
137
138 hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
139 (pdev->dev.platform_data))->jack_gpio;
140
141 palm27x_asoc.dev = &pdev->dev;
142
143 ret = snd_soc_register_card(&palm27x_asoc);
144 if (ret)
145 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
146 ret);
147 return ret;
148 }
149
palm27x_asoc_remove(struct platform_device * pdev)150 static int palm27x_asoc_remove(struct platform_device *pdev)
151 {
152 snd_soc_unregister_card(&palm27x_asoc);
153 return 0;
154 }
155
156 static struct platform_driver palm27x_wm9712_driver = {
157 .probe = palm27x_asoc_probe,
158 .remove = palm27x_asoc_remove,
159 .driver = {
160 .name = "palm27x-asoc",
161 .pm = &snd_soc_pm_ops,
162 },
163 };
164
165 module_platform_driver(palm27x_wm9712_driver);
166
167 /* Module information */
168 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
169 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
170 MODULE_LICENSE("GPL");
171