Root/
Source at commit 46503c75486bfd00511e0c25c98481652d87ec17 created 13 years 11 months ago. By Lars-Peter Clausen, Add qi_lb60 SoC sound board driver | |
---|---|
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> |
22 | #include <sound/soc-dapm.h> |
23 | #include <linux/gpio.h> |
24 | |
25 | #include "../codecs/jzcodec.h" |
26 | #include "jz4740-pcm.h" |
27 | #include "jz4740-i2s.h" |
28 | |
29 | |
30 | #define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29) |
31 | #define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4) |
32 | |
33 | static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget, |
34 | struct snd_kcontrol *ctrl, int event) |
35 | { |
36 | int on = 0; |
37 | if (event & SND_SOC_DAPM_POST_PMU) |
38 | on = 1; |
39 | else if (event & SND_SOC_DAPM_PRE_PMD) |
40 | on = 0; |
41 | |
42 | gpio_set_value(QI_LB60_SND_GPIO, on); |
43 | gpio_set_value(QI_LB60_AMP_GPIO, on); |
44 | |
45 | return 0; |
46 | } |
47 | |
48 | static const struct snd_soc_dapm_widget qi_lb60_widgets[] = { |
49 | SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event), |
50 | SND_SOC_DAPM_MIC("Mic", NULL), |
51 | }; |
52 | |
53 | static const struct snd_soc_dapm_route qi_lb60_routes[] = { |
54 | {"Mic", NULL, "MIC"}, |
55 | {"Speaker", NULL, "LOUT"}, |
56 | {"Speaker", NULL, "ROUT"}, |
57 | }; |
58 | |
59 | #define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \ |
60 | SND_SOC_DAIFMT_NB_NF | \ |
61 | SND_SOC_DAIFMT_CBM_CFM) |
62 | |
63 | static int qi_lb60_codec_init(struct snd_soc_codec *codec) |
64 | { |
65 | int ret; |
66 | struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai; |
67 | struct snd_soc_dai *codec_dai = codec->socdev->card->dai_link->codec_dai; |
68 | |
69 | snd_soc_dapm_nc_pin(codec, "LIN"); |
70 | snd_soc_dapm_nc_pin(codec, "RIN"); |
71 | |
72 | ret = snd_soc_dai_set_fmt(codec_dai, QI_LB60_DAIFMT); |
73 | if (ret < 0) { |
74 | dev_err(codec->dev, "Failed to set codec dai format: %d\n", ret); |
75 | return ret; |
76 | } |
77 | |
78 | ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT); |
79 | if (ret < 0) { |
80 | dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret); |
81 | return ret; |
82 | } |
83 | |
84 | ret = snd_soc_dai_set_sysclk(codec_dai, JZCODEC_SYSCLK, 111, |
85 | SND_SOC_CLOCK_IN); |
86 | if (ret < 0) { |
87 | dev_err(codec->dev, "Failed to set codec dai sysclk: %d\n", ret); |
88 | return ret; |
89 | } |
90 | |
91 | snd_soc_dapm_new_controls(codec, qi_lb60_widgets, ARRAY_SIZE(qi_lb60_widgets)); |
92 | |
93 | snd_soc_dapm_add_routes(codec, qi_lb60_routes, ARRAY_SIZE(qi_lb60_routes)); |
94 | |
95 | snd_soc_dapm_sync(codec); |
96 | |
97 | return 0; |
98 | } |
99 | |
100 | static struct snd_soc_dai_link qi_lb60_dai = { |
101 | .name = "jz-codec", |
102 | .stream_name = "JZCODEC", |
103 | .cpu_dai = &jz4740_i2s_dai, |
104 | .codec_dai = &jz_codec_dai, |
105 | .init = qi_lb60_codec_init, |
106 | }; |
107 | |
108 | static struct snd_soc_card qi_lb60 = { |
109 | .name = "QI LB60", |
110 | .dai_link = &qi_lb60_dai, |
111 | .num_links = 1, |
112 | .platform = &jz4740_soc_platform, |
113 | }; |
114 | |
115 | static struct snd_soc_device qi_lb60_snd_devdata = { |
116 | .card = &qi_lb60, |
117 | .codec_dev = &soc_codec_dev_jzcodec, |
118 | }; |
119 | |
120 | static struct platform_device *qi_lb60_snd_device; |
121 | |
122 | static int __init qi_lb60_init(void) |
123 | { |
124 | int ret; |
125 | |
126 | qi_lb60_snd_device = platform_device_alloc("soc-audio", -1); |
127 | |
128 | if (!qi_lb60_snd_device) |
129 | return -ENOMEM; |
130 | |
131 | |
132 | ret = gpio_request(QI_LB60_SND_GPIO, "SND"); |
133 | if (ret) { |
134 | pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n", |
135 | QI_LB60_SND_GPIO, ret); |
136 | goto err_device_put; |
137 | } |
138 | |
139 | ret = gpio_request(QI_LB60_AMP_GPIO, "AMP"); |
140 | if (ret) { |
141 | pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n", |
142 | QI_LB60_AMP_GPIO, ret); |
143 | goto err_gpio_free_snd; |
144 | } |
145 | |
146 | gpio_direction_output(JZ_GPIO_PORTB(29), 0); |
147 | gpio_direction_output(JZ_GPIO_PORTD(4), 0); |
148 | |
149 | platform_set_drvdata(qi_lb60_snd_device, &qi_lb60_snd_devdata); |
150 | qi_lb60_snd_devdata.dev = &qi_lb60_snd_device->dev; |
151 | ret = platform_device_add(qi_lb60_snd_device); |
152 | if (ret) { |
153 | pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret); |
154 | goto err_unset_pdata; |
155 | } |
156 | |
157 | return 0; |
158 | |
159 | err_unset_pdata: |
160 | platform_set_drvdata(qi_lb60_snd_device, NULL); |
161 | /*err_gpio_free_amp:*/ |
162 | gpio_free(QI_LB60_AMP_GPIO); |
163 | err_gpio_free_snd: |
164 | gpio_free(QI_LB60_SND_GPIO); |
165 | err_device_put: |
166 | platform_device_put(qi_lb60_snd_device); |
167 | |
168 | return ret; |
169 | } |
170 | module_init(qi_lb60_init); |
171 | |
172 | static void __exit qi_lb60_exit(void) |
173 | { |
174 | gpio_free(QI_LB60_AMP_GPIO); |
175 | gpio_free(QI_LB60_SND_GPIO); |
176 | platform_device_unregister(qi_lb60_snd_device); |
177 | } |
178 | module_exit(qi_lb60_exit); |
179 | |
180 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); |
181 | MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support"); |
182 | MODULE_LICENSE("GPL v2"); |
183 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9