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5898dd9e LPC |
1 | /* |
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> | |
218e18a3 | 22 | #include <linux/gpio/consumer.h> |
5898dd9e | 23 | |
218e18a3 LPC |
24 | struct qi_lb60 { |
25 | struct gpio_desc *snd_gpio; | |
26 | struct gpio_desc *amp_gpio; | |
27 | }; | |
5898dd9e LPC |
28 | |
29 | static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget, | |
30 | struct snd_kcontrol *ctrl, int event) | |
31 | { | |
218e18a3 | 32 | struct qi_lb60 *qi_lb60 = snd_soc_card_get_drvdata(widget->dapm->card); |
621206b7 | 33 | int on = !SND_SOC_DAPM_EVENT_OFF(event); |
5898dd9e | 34 | |
218e18a3 LPC |
35 | gpiod_set_value_cansleep(qi_lb60->snd_gpio, on); |
36 | gpiod_set_value_cansleep(qi_lb60->amp_gpio, on); | |
5898dd9e LPC |
37 | |
38 | return 0; | |
39 | } | |
40 | ||
41 | static 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 | ||
46 | static const struct snd_soc_dapm_route qi_lb60_routes[] = { | |
47 | {"Mic", NULL, "MIC"}, | |
48 | {"Speaker", NULL, "LOUT"}, | |
49 | {"Speaker", NULL, "ROUT"}, | |
50 | }; | |
51 | ||
5898dd9e LPC |
52 | static struct snd_soc_dai_link qi_lb60_dai = { |
53 | .name = "jz4740", | |
54 | .stream_name = "jz4740", | |
f0fba2ad | 55 | .cpu_dai_name = "jz4740-i2s", |
0406a40a | 56 | .platform_name = "jz4740-i2s", |
f0fba2ad LG |
57 | .codec_dai_name = "jz4740-hifi", |
58 | .codec_name = "jz4740-codec", | |
0e746d7b LPC |
59 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
60 | SND_SOC_DAIFMT_CBM_CFM, | |
5898dd9e LPC |
61 | }; |
62 | ||
218e18a3 | 63 | static struct snd_soc_card qi_lb60_card = { |
5898dd9e | 64 | .name = "QI LB60", |
1d9d25b3 | 65 | .owner = THIS_MODULE, |
5898dd9e LPC |
66 | .dai_link = &qi_lb60_dai, |
67 | .num_links = 1, | |
13319699 LPC |
68 | |
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), | |
b8fb837b | 73 | .fully_routed = true, |
5898dd9e LPC |
74 | }; |
75 | ||
d6a29e3d | 76 | static int qi_lb60_probe(struct platform_device *pdev) |
5898dd9e | 77 | { |
218e18a3 LPC |
78 | struct qi_lb60 *qi_lb60; |
79 | struct snd_soc_card *card = &qi_lb60_card; | |
5898dd9e | 80 | |
218e18a3 LPC |
81 | qi_lb60 = devm_kzalloc(&pdev->dev, sizeof(*qi_lb60), GFP_KERNEL); |
82 | if (!qi_lb60) | |
83 | return -ENOMEM; | |
84 | ||
69b93607 | 85 | qi_lb60->snd_gpio = devm_gpiod_get(&pdev->dev, "snd", GPIOD_OUT_LOW); |
218e18a3 LPC |
86 | if (IS_ERR(qi_lb60->snd_gpio)) |
87 | return PTR_ERR(qi_lb60->snd_gpio); | |
218e18a3 | 88 | |
69b93607 | 89 | qi_lb60->amp_gpio = devm_gpiod_get(&pdev->dev, "amp", GPIOD_OUT_LOW); |
218e18a3 LPC |
90 | if (IS_ERR(qi_lb60->amp_gpio)) |
91 | return PTR_ERR(qi_lb60->amp_gpio); | |
5898dd9e | 92 | |
b33005f3 | 93 | card->dev = &pdev->dev; |
5898dd9e | 94 | |
218e18a3 | 95 | snd_soc_card_set_drvdata(card, qi_lb60); |
5898dd9e | 96 | |
218e18a3 | 97 | return devm_snd_soc_register_card(&pdev->dev, card); |
5898dd9e | 98 | } |
b33005f3 AL |
99 | |
100 | static struct platform_driver qi_lb60_driver = { | |
101 | .driver = { | |
102 | .name = "qi-lb60-audio", | |
b33005f3 AL |
103 | }, |
104 | .probe = qi_lb60_probe, | |
b33005f3 AL |
105 | }; |
106 | ||
107 | module_platform_driver(qi_lb60_driver); | |
5898dd9e LPC |
108 | |
109 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); | |
110 | MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support"); | |
111 | MODULE_LICENSE("GPL v2"); | |
b33005f3 | 112 | MODULE_ALIAS("platform:qi-lb60-audio"); |