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 <mach/palmasoc.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 {"Ext. Microphone", NULL, "MIC1"},
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 struct snd_soc_codec *codec = rtd->codec;
79 struct snd_soc_dapm_context *dapm = &codec->dapm;
80 int err;
81
82 /* add palm27x specific widgets */
83 err = snd_soc_dapm_new_controls(dapm, palm27x_dapm_widgets,
84 ARRAY_SIZE(palm27x_dapm_widgets));
85 if (err)
86 return err;
87
88 /* set up palm27x specific audio path audio_map */
89 err = snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
90 if (err)
91 return err;
92
93 /* connected pins */
94 if (machine_is_palmld())
95 snd_soc_dapm_enable_pin(dapm, "MIC1");
96 snd_soc_dapm_enable_pin(dapm, "HPOUTL");
97 snd_soc_dapm_enable_pin(dapm, "HPOUTR");
98 snd_soc_dapm_enable_pin(dapm, "LOUT2");
99 snd_soc_dapm_enable_pin(dapm, "ROUT2");
100
101 /* not connected pins */
102 snd_soc_dapm_nc_pin(dapm, "OUT3");
103 snd_soc_dapm_nc_pin(dapm, "MONOOUT");
104 snd_soc_dapm_nc_pin(dapm, "LINEINL");
105 snd_soc_dapm_nc_pin(dapm, "LINEINR");
106 snd_soc_dapm_nc_pin(dapm, "PCBEEP");
107 snd_soc_dapm_nc_pin(dapm, "PHONE");
108 snd_soc_dapm_nc_pin(dapm, "MIC2");
109
110 /* Jack detection API stuff */
111 err = snd_soc_jack_new(codec, "Headphone Jack",
112 SND_JACK_HEADPHONE, &hs_jack);
113 if (err)
114 return err;
115
116 err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
117 hs_jack_pins);
118 if (err)
119 return err;
120
121 err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
122 hs_jack_gpios);
123
124 return err;
125 }
126
127 static struct snd_soc_dai_link palm27x_dai[] = {
128 {
129 .name = "AC97 HiFi",
130 .stream_name = "AC97 HiFi",
131 .cpu_dai_name = "pxa2xx-ac97",
132 .codec_dai_name = "wm9712-hifi",
133 .codec_name = "wm9712-codec",
134 .platform_name = "pxa-pcm-audio",
135 .init = palm27x_ac97_init,
136 },
137 {
138 .name = "AC97 Aux",
139 .stream_name = "AC97 Aux",
140 .cpu_dai_name = "pxa2xx-ac97-aux",
141 .codec_dai_name = "wm9712-aux",
142 .codec_name = "wm9712-codec",
143 .platform_name = "pxa-pcm-audio",
144 },
145 };
146
147 static struct snd_soc_card palm27x_asoc = {
148 .name = "Palm/PXA27x",
149 .owner = THIS_MODULE,
150 .dai_link = palm27x_dai,
151 .num_links = ARRAY_SIZE(palm27x_dai),
152 };
153
154 static struct platform_device *palm27x_snd_device;
155
palm27x_asoc_probe(struct platform_device * pdev)156 static int palm27x_asoc_probe(struct platform_device *pdev)
157 {
158 int ret;
159
160 if (!(machine_is_palmtx() || machine_is_palmt5() ||
161 machine_is_palmld() || machine_is_palmte2()))
162 return -ENODEV;
163
164 if (!pdev->dev.platform_data) {
165 dev_err(&pdev->dev, "please supply platform_data\n");
166 return -ENODEV;
167 }
168
169 hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
170 (pdev->dev.platform_data))->jack_gpio;
171
172 palm27x_snd_device = platform_device_alloc("soc-audio", -1);
173 if (!palm27x_snd_device)
174 return -ENOMEM;
175
176 platform_set_drvdata(palm27x_snd_device, &palm27x_asoc);
177 ret = platform_device_add(palm27x_snd_device);
178
179 if (ret != 0)
180 goto put_device;
181
182 return 0;
183
184 put_device:
185 platform_device_put(palm27x_snd_device);
186
187 return ret;
188 }
189
palm27x_asoc_remove(struct platform_device * pdev)190 static int __devexit palm27x_asoc_remove(struct platform_device *pdev)
191 {
192 platform_device_unregister(palm27x_snd_device);
193 return 0;
194 }
195
196 static struct platform_driver palm27x_wm9712_driver = {
197 .probe = palm27x_asoc_probe,
198 .remove = __devexit_p(palm27x_asoc_remove),
199 .driver = {
200 .name = "palm27x-asoc",
201 .owner = THIS_MODULE,
202 },
203 };
204
205 module_platform_driver(palm27x_wm9712_driver);
206
207 /* Module information */
208 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
209 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
210 MODULE_LICENSE("GPL");
211