git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 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> | |
| 22 | #include <sound/soc-dapm.h> | |
| 23 | #include <linux/gpio.h> | |
| 24 | ||
| 5898dd9e LPC |
25 | #define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29) |
| 26 | #define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4) | |
| 27 | ||
| 28 | static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget, | |
| 29 | struct snd_kcontrol *ctrl, int event) | |
| 30 | { | |
| 31 | int on = 0; | |
| 32 | if (event & SND_SOC_DAPM_POST_PMU) | |
| 33 | on = 1; | |
| 34 | else if (event & SND_SOC_DAPM_PRE_PMD) | |
| 35 | on = 0; | |
| 36 | ||
| 37 | gpio_set_value(QI_LB60_SND_GPIO, on); | |
| 38 | gpio_set_value(QI_LB60_AMP_GPIO, on); | |
| 39 | ||
| 40 | return 0; | |
| 41 | } | |
| 42 | ||
| 43 | static const struct snd_soc_dapm_widget qi_lb60_widgets[] = { | |
| 44 | SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event), | |
| 45 | SND_SOC_DAPM_MIC("Mic", NULL), | |
| 46 | }; | |
| 47 | ||
| 48 | static const struct snd_soc_dapm_route qi_lb60_routes[] = { | |
| 49 | {"Mic", NULL, "MIC"}, | |
| 50 | {"Speaker", NULL, "LOUT"}, | |
| 51 | {"Speaker", NULL, "ROUT"}, | |
| 52 | }; | |
| 53 | ||
| 54 | #define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \ | |
| 55 | SND_SOC_DAIFMT_NB_NF | \ | |
| 56 | SND_SOC_DAIFMT_CBM_CFM) | |
| 57 | ||
| f0fba2ad | 58 | static int qi_lb60_codec_init(struct snd_soc_pcm_runtime *rtd) |
| 5898dd9e | 59 | { |
| f0fba2ad LG |
60 | struct snd_soc_codec *codec = rtd->codec; |
| 61 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
| 5898dd9e | 62 | int ret; |
| 5898dd9e LPC |
63 | |
| 64 | snd_soc_dapm_nc_pin(codec, "LIN"); | |
| 65 | snd_soc_dapm_nc_pin(codec, "RIN"); | |
| 66 | ||
| 67 | ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT); | |
| 68 | if (ret < 0) { | |
| 69 | dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret); | |
| 70 | return ret; | |
| 71 | } | |
| 72 | ||
| 73 | snd_soc_dapm_new_controls(codec, qi_lb60_widgets, ARRAY_SIZE(qi_lb60_widgets)); | |
| 74 | snd_soc_dapm_add_routes(codec, qi_lb60_routes, ARRAY_SIZE(qi_lb60_routes)); | |
| 75 | snd_soc_dapm_sync(codec); | |
| 76 | ||
| 77 | return 0; | |
| 78 | } | |
| 79 | ||
| 80 | static struct snd_soc_dai_link qi_lb60_dai = { | |
| 81 | .name = "jz4740", | |
| 82 | .stream_name = "jz4740", | |
| f0fba2ad | 83 | .cpu_dai_name = "jz4740-i2s", |
| 3ca2ecd9 | 84 | .platform_name = "jz4740-pcm-audio", |
| f0fba2ad LG |
85 | .codec_dai_name = "jz4740-hifi", |
| 86 | .codec_name = "jz4740-codec", | |
| 5898dd9e LPC |
87 | .init = qi_lb60_codec_init, |
| 88 | }; | |
| 89 | ||
| 90 | static struct snd_soc_card qi_lb60 = { | |
| 91 | .name = "QI LB60", | |
| 92 | .dai_link = &qi_lb60_dai, | |
| 93 | .num_links = 1, | |
| 5898dd9e LPC |
94 | }; |
| 95 | ||
| 96 | static struct platform_device *qi_lb60_snd_device; | |
| 97 | ||
| 98 | static int __init qi_lb60_init(void) | |
| 99 | { | |
| 100 | int ret; | |
| 101 | ||
| 102 | qi_lb60_snd_device = platform_device_alloc("soc-audio", -1); | |
| 103 | ||
| 104 | if (!qi_lb60_snd_device) | |
| 105 | return -ENOMEM; | |
| 106 | ||
| 107 | ret = gpio_request(QI_LB60_SND_GPIO, "SND"); | |
| 108 | if (ret) { | |
| 109 | pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n", | |
| 110 | QI_LB60_SND_GPIO, ret); | |
| 111 | goto err_device_put; | |
| 112 | } | |
| 113 | ||
| 114 | ret = gpio_request(QI_LB60_AMP_GPIO, "AMP"); | |
| 115 | if (ret) { | |
| 116 | pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n", | |
| 117 | QI_LB60_AMP_GPIO, ret); | |
| 118 | goto err_gpio_free_snd; | |
| 119 | } | |
| 120 | ||
| 121 | gpio_direction_output(QI_LB60_SND_GPIO, 0); | |
| 122 | gpio_direction_output(QI_LB60_AMP_GPIO, 0); | |
| 123 | ||
| f0fba2ad | 124 | platform_set_drvdata(qi_lb60_snd_device, &qi_lb60); |
| 5898dd9e LPC |
125 | |
| 126 | ret = platform_device_add(qi_lb60_snd_device); | |
| 127 | if (ret) { | |
| 128 | pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret); | |
| 129 | goto err_unset_pdata; | |
| 130 | } | |
| 131 | ||
| 132 | return 0; | |
| 133 | ||
| 134 | err_unset_pdata: | |
| 135 | platform_set_drvdata(qi_lb60_snd_device, NULL); | |
| 136 | /*err_gpio_free_amp:*/ | |
| 137 | gpio_free(QI_LB60_AMP_GPIO); | |
| 138 | err_gpio_free_snd: | |
| 139 | gpio_free(QI_LB60_SND_GPIO); | |
| 140 | err_device_put: | |
| 141 | platform_device_put(qi_lb60_snd_device); | |
| 142 | ||
| 143 | return ret; | |
| 144 | } | |
| 145 | module_init(qi_lb60_init); | |
| 146 | ||
| 147 | static void __exit qi_lb60_exit(void) | |
| 148 | { | |
| 149 | gpio_free(QI_LB60_AMP_GPIO); | |
| 150 | gpio_free(QI_LB60_SND_GPIO); | |
| 151 | platform_device_unregister(qi_lb60_snd_device); | |
| 152 | } | |
| 153 | module_exit(qi_lb60_exit); | |
| 154 | ||
| 155 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); | |
| 156 | MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support"); | |
| 157 | MODULE_LICENSE("GPL v2"); |