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
33static struct snd_soc_jack hs_jack;
34
35/* Headphones jack detection DAPM pins */
36static 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 */
44static 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 */
54static 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 */
61static 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
74static struct snd_soc_card palm27x_asoc;
75
76static 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
93static 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
113static 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
125static 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
150static int palm27x_asoc_remove(struct platform_device *pdev)
151{
152	snd_soc_unregister_card(&palm27x_asoc);
153	return 0;
154}
155
156static 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
165module_platform_driver(palm27x_wm9712_driver);
166
167/* Module information */
168MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
169MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
170MODULE_LICENSE("GPL");
171