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1 /*
2  * linux/sound/soc/pxa/ttc_dkb.c
3  *
4  * Copyright (C) 2012 Marvell International Ltd.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  */
21 #include <linux/module.h>
22 #include <linux/moduleparam.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/soc.h>
26 #include <sound/jack.h>
27 #include <asm/mach-types.h>
28 #include <sound/pcm_params.h>
29 #include "../codecs/88pm860x-codec.h"
30 
31 static struct snd_soc_jack hs_jack, mic_jack;
32 
33 static struct snd_soc_jack_pin hs_jack_pins[] = {
34 	{ .pin = "Headset Stereophone",	.mask = SND_JACK_HEADPHONE, },
35 };
36 
37 static struct snd_soc_jack_pin mic_jack_pins[] = {
38 	{ .pin = "Headset Mic 2",	.mask = SND_JACK_MICROPHONE, },
39 };
40 
41 /* ttc machine dapm widgets */
42 static const struct snd_soc_dapm_widget ttc_dapm_widgets[] = {
43 	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
44 	SND_SOC_DAPM_LINE("Lineout Out 1", NULL),
45 	SND_SOC_DAPM_LINE("Lineout Out 2", NULL),
46 	SND_SOC_DAPM_SPK("Ext Speaker", NULL),
47 	SND_SOC_DAPM_MIC("Ext Mic 1", NULL),
48 	SND_SOC_DAPM_MIC("Headset Mic 2", NULL),
49 	SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
50 };
51 
52 /* ttc machine audio map */
53 static const struct snd_soc_dapm_route ttc_audio_map[] = {
54 	{"Headset Stereophone", NULL, "HS1"},
55 	{"Headset Stereophone", NULL, "HS2"},
56 
57 	{"Ext Speaker", NULL, "LSP"},
58 	{"Ext Speaker", NULL, "LSN"},
59 
60 	{"Lineout Out 1", NULL, "LINEOUT1"},
61 	{"Lineout Out 2", NULL, "LINEOUT2"},
62 
63 	{"MIC1P", NULL, "Mic1 Bias"},
64 	{"MIC1N", NULL, "Mic1 Bias"},
65 	{"Mic1 Bias", NULL, "Ext Mic 1"},
66 
67 	{"MIC2P", NULL, "Mic1 Bias"},
68 	{"MIC2N", NULL, "Mic1 Bias"},
69 	{"Mic1 Bias", NULL, "Headset Mic 2"},
70 
71 	{"MIC3P", NULL, "Mic3 Bias"},
72 	{"MIC3N", NULL, "Mic3 Bias"},
73 	{"Mic3 Bias", NULL, "Ext Mic 3"},
74 };
75 
ttc_pm860x_init(struct snd_soc_pcm_runtime * rtd)76 static int ttc_pm860x_init(struct snd_soc_pcm_runtime *rtd)
77 {
78 	struct snd_soc_codec *codec = rtd->codec;
79 
80 	/* Headset jack detection */
81 	snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE |
82 			      SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
83 			      &hs_jack, hs_jack_pins, ARRAY_SIZE(hs_jack_pins));
84 	snd_soc_card_jack_new(rtd->card, "Microphone Jack", SND_JACK_MICROPHONE,
85 			      &mic_jack, mic_jack_pins,
86 			      ARRAY_SIZE(mic_jack_pins));
87 
88 	/* headphone, microphone detection & headset short detection */
89 	pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
90 			      SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
91 	pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
92 
93 	return 0;
94 }
95 
96 /* ttc/td-dkb digital audio interface glue - connects codec <--> CPU */
97 static struct snd_soc_dai_link ttc_pm860x_hifi_dai[] = {
98 {
99 	 .name = "88pm860x i2s",
100 	 .stream_name = "audio playback",
101 	 .codec_name = "88pm860x-codec",
102 	 .platform_name = "mmp-pcm-audio",
103 	 .cpu_dai_name = "pxa-ssp-dai.1",
104 	 .codec_dai_name = "88pm860x-i2s",
105 	 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
106 			SND_SOC_DAIFMT_CBM_CFM,
107 	 .init = ttc_pm860x_init,
108 },
109 };
110 
111 /* ttc/td audio machine driver */
112 static struct snd_soc_card ttc_dkb_card = {
113 	.name = "ttc-dkb-hifi",
114 	.owner = THIS_MODULE,
115 	.dai_link = ttc_pm860x_hifi_dai,
116 	.num_links = ARRAY_SIZE(ttc_pm860x_hifi_dai),
117 
118 	.dapm_widgets = ttc_dapm_widgets,
119 	.num_dapm_widgets = ARRAY_SIZE(ttc_dapm_widgets),
120 	.dapm_routes = ttc_audio_map,
121 	.num_dapm_routes = ARRAY_SIZE(ttc_audio_map),
122 };
123 
ttc_dkb_probe(struct platform_device * pdev)124 static int ttc_dkb_probe(struct platform_device *pdev)
125 {
126 	struct snd_soc_card *card = &ttc_dkb_card;
127 	int ret;
128 
129 	card->dev = &pdev->dev;
130 
131 	ret = devm_snd_soc_register_card(&pdev->dev, card);
132 	if (ret)
133 		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
134 			ret);
135 
136 	return ret;
137 }
138 
139 static struct platform_driver ttc_dkb_driver = {
140 	.driver		= {
141 		.name	= "ttc-dkb-audio",
142 		.pm     = &snd_soc_pm_ops,
143 	},
144 	.probe		= ttc_dkb_probe,
145 };
146 
147 module_platform_driver(ttc_dkb_driver);
148 
149 /* Module information */
150 MODULE_AUTHOR("Qiao Zhou, <zhouqiao@marvell.com>");
151 MODULE_DESCRIPTION("ALSA SoC TTC DKB");
152 MODULE_LICENSE("GPL");
153 MODULE_ALIAS("platform:ttc-dkb-audio");
154