blob: 5cb91f9e86261b03afcb70583cd83f17ec3e4729 [file] [log] [blame]
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +02001/*
2 * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 *
8 * You should have received a copy of the GNU General Public License along
9 * with this program; if not, write to the Free Software Foundation, Inc.,
10 * 675 Mass Ave, Cambridge, MA 02139, USA.
11 *
12 */
13
14#include <linux/module.h>
15#include <linux/moduleparam.h>
16#include <linux/timer.h>
17#include <linux/interrupt.h>
18#include <linux/platform_device.h>
19#include <sound/core.h>
20#include <sound/pcm.h>
21#include <sound/soc.h>
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +020022#include <linux/gpio/consumer.h>
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020023
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +020024struct qi_lb60 {
25 struct gpio_desc *snd_gpio;
26 struct gpio_desc *amp_gpio;
27};
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020028
29static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget,
30 struct snd_kcontrol *ctrl, int event)
31{
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +020032 struct qi_lb60 *qi_lb60 = snd_soc_card_get_drvdata(widget->dapm->card);
Lars-Peter Clausen621206b2011-04-12 19:31:05 +020033 int on = !SND_SOC_DAPM_EVENT_OFF(event);
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020034
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +020035 gpiod_set_value_cansleep(qi_lb60->snd_gpio, on);
36 gpiod_set_value_cansleep(qi_lb60->amp_gpio, on);
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020037
38 return 0;
39}
40
41static const struct snd_soc_dapm_widget qi_lb60_widgets[] = {
42 SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event),
43 SND_SOC_DAPM_MIC("Mic", NULL),
44};
45
46static const struct snd_soc_dapm_route qi_lb60_routes[] = {
47 {"Mic", NULL, "MIC"},
48 {"Speaker", NULL, "LOUT"},
49 {"Speaker", NULL, "ROUT"},
50};
51
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020052static struct snd_soc_dai_link qi_lb60_dai = {
53 .name = "jz4740",
54 .stream_name = "jz4740",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000055 .cpu_dai_name = "jz4740-i2s",
Lars-Peter Clausen0406a402013-12-03 18:53:03 +010056 .platform_name = "jz4740-i2s",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000057 .codec_dai_name = "jz4740-hifi",
58 .codec_name = "jz4740-codec",
Lars-Peter Clausen0e746d72014-04-22 22:46:33 +020059 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
60 SND_SOC_DAIFMT_CBM_CFM,
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020061};
62
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +020063static struct snd_soc_card qi_lb60_card = {
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020064 .name = "QI LB60",
Axel Lin1d9d25b2011-12-23 14:48:19 +080065 .owner = THIS_MODULE,
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020066 .dai_link = &qi_lb60_dai,
67 .num_links = 1,
Lars-Peter Clausen13319692011-04-12 19:31:03 +020068
69 .dapm_widgets = qi_lb60_widgets,
70 .num_dapm_widgets = ARRAY_SIZE(qi_lb60_widgets),
71 .dapm_routes = qi_lb60_routes,
72 .num_dapm_routes = ARRAY_SIZE(qi_lb60_routes),
Lars-Peter Clausenb8fb8372014-04-22 22:46:32 +020073 .fully_routed = true,
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020074};
75
Bill Pembertond6a29e32012-12-07 09:26:24 -050076static int qi_lb60_probe(struct platform_device *pdev)
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020077{
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +020078 struct qi_lb60 *qi_lb60;
79 struct snd_soc_card *card = &qi_lb60_card;
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +020080 int ret;
81
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +020082 qi_lb60 = devm_kzalloc(&pdev->dev, sizeof(*qi_lb60), GFP_KERNEL);
83 if (!qi_lb60)
84 return -ENOMEM;
85
86 qi_lb60->snd_gpio = devm_gpiod_get(&pdev->dev, "snd");
87 if (IS_ERR(qi_lb60->snd_gpio))
88 return PTR_ERR(qi_lb60->snd_gpio);
89 ret = gpiod_direction_output(qi_lb60->snd_gpio, 0);
90 if (ret)
91 return ret;
92
93 qi_lb60->amp_gpio = devm_gpiod_get(&pdev->dev, "amp");
94 if (IS_ERR(qi_lb60->amp_gpio))
95 return PTR_ERR(qi_lb60->amp_gpio);
96 ret = gpiod_direction_output(qi_lb60->amp_gpio, 0);
Axel Linb33005f32012-01-06 11:30:10 +080097 if (ret)
98 return ret;
99
100 card->dev = &pdev->dev;
101
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +0200102 snd_soc_card_set_drvdata(card, qi_lb60);
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +0200103
Lars-Peter Clausen218e18a2014-04-22 22:46:35 +0200104 return devm_snd_soc_register_card(&pdev->dev, card);
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +0200105}
Axel Linb33005f32012-01-06 11:30:10 +0800106
107static struct platform_driver qi_lb60_driver = {
108 .driver = {
109 .name = "qi-lb60-audio",
110 .owner = THIS_MODULE,
111 },
112 .probe = qi_lb60_probe,
Axel Linb33005f32012-01-06 11:30:10 +0800113};
114
115module_platform_driver(qi_lb60_driver);
Lars-Peter Clausen5898dd92010-06-19 16:52:51 +0200116
117MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
118MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
119MODULE_LICENSE("GPL v2");
Axel Linb33005f32012-01-06 11:30:10 +0800120MODULE_ALIAS("platform:qi-lb60-audio");