target/linux/xburst/patches-2.6.34/065-qi_lb60-sound.patch

   1 From 53b1d94ccca6a06e86460344f7c38949d53374b6 Mon Sep 17 00:00:00 2001
   2 From: Lars-Peter Clausen <lars@metafoo.de>
   3 Date: Sat, 24 Apr 2010 12:36:15 +0200
   4 Subject: [PATCH] Add qi_lb60 SoC sound board driver
   5
   6 ---
   7  sound/soc/jz4740/Kconfig   |    8 ++
   8  sound/soc/jz4740/Makefile  |    4 +
   9  sound/soc/jz4740/qi_lb60.c |  182 ++++++++++++++++++++++++++++++++++++++++++++
  10  3 files changed, 194 insertions(+), 0 deletions(-)
  11  create mode 100644 sound/soc/jz4740/qi_lb60.c
  12
  13 diff --git a/sound/soc/jz4740/Kconfig b/sound/soc/jz4740/Kconfig
  14 index 39df949..e546c30 100644
  15 --- a/sound/soc/jz4740/Kconfig
  16 +++ b/sound/soc/jz4740/Kconfig
  17 @@ -11,3 +11,11 @@ config SND_JZ4740_SOC_I2S
  18         tristate "SoC Audio (I2S protocol) for Ingenic jz4740 chip"
  19         help
  20           Say Y if you want to use I2S protocol and I2S codec on Ingenic Jz4740 QI_LB60 board.
  21 +
  22 +config SND_JZ4740_SOC_QI_LB60
  23 +       tristate "SoC Audio support for Qi Hardware Ben Nanonote"
  24 +       depends on SND_JZ4740_SOC && JZ4740_QI_LB60
  25 +       select SND_JZ4740_SOC_I2S
  26 +    select SND_SOC_JZCODEC
  27 +       help
  28 +         Say Y if you want to add support for SoC audio of internal codec on Ingenic Jz4740 QI_LB60 board.
  29 diff --git a/sound/soc/jz4740/Makefile b/sound/soc/jz4740/Makefile
  30 index 1be8d19..be873c1 100644
  31 --- a/sound/soc/jz4740/Makefile
  32 +++ b/sound/soc/jz4740/Makefile
  33 @@ -7,3 +7,7 @@ snd-soc-jz4740-i2s-objs := jz4740-i2s.o
  34  obj-$(CONFIG_SND_JZ4740_SOC) += snd-soc-jz4740.o
  35  obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o
  36
  37 +# Jz4740 Machine Support
  38 +snd-soc-qi-lb60-objs := qi_lb60.o
  39 +
  40 +obj-$(CONFIG_SND_JZ4740_SOC_QI_LB60) += snd-soc-qi-lb60.o
  41 diff --git a/sound/soc/jz4740/qi_lb60.c b/sound/soc/jz4740/qi_lb60.c
  42 new file mode 100644
  43 index 0000000..a2ce3cf
  44 --- /dev/null
  45 +++ b/sound/soc/jz4740/qi_lb60.c
  46 @@ -0,0 +1,182 @@
  47 +/*
  48 + * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
  49 + *
  50 + * This program is free software; you can redistribute it and/or modify
  51 + * it under the terms of the GNU General Public License version 2 as
  52 + * published by the Free Software Foundation.
  53 + *
  54 + *  You should have received a copy of the  GNU General Public License along
  55 + *  with this program; if not, write  to the Free Software Foundation, Inc.,
  56 + *  675 Mass Ave, Cambridge, MA 02139, USA.
  57 + *
  58 + */
  59 +
  60 +#include <linux/module.h>
  61 +#include <linux/moduleparam.h>
  62 +#include <linux/timer.h>
  63 +#include <linux/interrupt.h>
  64 +#include <linux/platform_device.h>
  65 +#include <sound/core.h>
  66 +#include <sound/pcm.h>
  67 +#include <sound/soc.h>
  68 +#include <sound/soc-dapm.h>
  69 +#include <linux/gpio.h>
  70 +
  71 +#include "../codecs/jzcodec.h"
  72 +#include "jz4740-pcm.h"
  73 +#include "jz4740-i2s.h"
  74 +
  75 +
  76 +#define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29)
  77 +#define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4)
  78 +
  79 +static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget,
  80 +                            struct snd_kcontrol *ctrl, int event)
  81 +{
  82 +       int on = 0;
  83 +       if (event & SND_SOC_DAPM_POST_PMU)
  84 +               on = 1;
  85 +       else if (event & SND_SOC_DAPM_PRE_PMD)
  86 +               on = 0;
  87 +
  88 +       gpio_set_value(QI_LB60_SND_GPIO, on);
  89 +       gpio_set_value(QI_LB60_AMP_GPIO, on);
  90 +
  91 +       return 0;
  92 +}
  93 +
  94 +static const struct snd_soc_dapm_widget qi_lb60_widgets[] = {
  95 +       SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event),
  96 +       SND_SOC_DAPM_MIC("Mic", NULL),
  97 +};
  98 +
  99 +static const struct snd_soc_dapm_route qi_lb60_routes[] = {
 100 +       {"Mic", NULL, "MIC"},
 101 +       {"Speaker", NULL, "LOUT"},
 102 +       {"Speaker", NULL, "ROUT"},
 103 +};
 104 +
 105 +#define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \
 106 +                       SND_SOC_DAIFMT_NB_NF | \
 107 +                       SND_SOC_DAIFMT_CBM_CFM)
 108 +
 109 +static int qi_lb60_codec_init(struct snd_soc_codec *codec)
 110 +{
 111 +       int ret;
 112 +       struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai;
 113 +       struct snd_soc_dai *codec_dai = codec->socdev->card->dai_link->codec_dai;
 114 +
 115 +       snd_soc_dapm_nc_pin(codec, "LIN");
 116 +       snd_soc_dapm_nc_pin(codec, "RIN");
 117 +
 118 +       ret = snd_soc_dai_set_fmt(codec_dai, QI_LB60_DAIFMT);
 119 +       if (ret < 0) {
 120 +               dev_err(codec->dev, "Failed to set codec dai format: %d\n", ret);
 121 +               return ret;
 122 +       }
 123 +
 124 +       ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT);
 125 +       if (ret < 0) {
 126 +               dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret);
 127 +               return ret;
 128 +       }
 129 +
 130 +       ret = snd_soc_dai_set_sysclk(codec_dai, JZCODEC_SYSCLK, 111,
 131 +               SND_SOC_CLOCK_IN);
 132 +       if (ret < 0) {
 133 +               dev_err(codec->dev, "Failed to set codec dai sysclk: %d\n", ret);
 134 +               return ret;
 135 +       }
 136 +
 137 +       snd_soc_dapm_new_controls(codec, qi_lb60_widgets, ARRAY_SIZE(qi_lb60_widgets));
 138 +
 139 +       snd_soc_dapm_add_routes(codec, qi_lb60_routes, ARRAY_SIZE(qi_lb60_routes));
 140 +
 141 +       snd_soc_dapm_sync(codec);
 142 +
 143 +       return 0;
 144 +}
 145 +
 146 +static struct snd_soc_dai_link qi_lb60_dai = {
 147 +       .name = "jz-codec",
 148 +       .stream_name = "JZCODEC",
 149 +       .cpu_dai = &jz4740_i2s_dai,
 150 +       .codec_dai = &jz_codec_dai,
 151 +       .init = qi_lb60_codec_init,
 152 +};
 153 +
 154 +static struct snd_soc_card qi_lb60 = {
 155 +       .name = "QI LB60",
 156 +       .dai_link = &qi_lb60_dai,
 157 +       .num_links = 1,
 158 +       .platform = &jz4740_soc_platform,
 159 +};
 160 +
 161 +static struct snd_soc_device qi_lb60_snd_devdata = {
 162 +       .card = &qi_lb60,
 163 +       .codec_dev = &soc_codec_dev_jzcodec,
 164 +};
 165 +
 166 +static struct platform_device *qi_lb60_snd_device;
 167 +
 168 +static int __init qi_lb60_init(void)
 169 +{
 170 +       int ret;
 171 +
 172 +       qi_lb60_snd_device = platform_device_alloc("soc-audio", -1);
 173 +
 174 +       if (!qi_lb60_snd_device)
 175 +               return -ENOMEM;
 176 +
 177 +
 178 +       ret = gpio_request(QI_LB60_SND_GPIO, "SND");
 179 +       if (ret) {
 180 +               pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n",
 181 +                               QI_LB60_SND_GPIO, ret);
 182 +               goto err_device_put;
 183 +       }
 184 +
 185 +       ret = gpio_request(QI_LB60_AMP_GPIO, "AMP");
 186 +       if (ret) {
 187 +               pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n",
 188 +                               QI_LB60_AMP_GPIO, ret);
 189 +               goto err_gpio_free_snd;
 190 +       }
 191 +
 192 +       gpio_direction_output(JZ_GPIO_PORTB(29), 0);
 193 +       gpio_direction_output(JZ_GPIO_PORTD(4), 0);
 194 +
 195 +       platform_set_drvdata(qi_lb60_snd_device, &qi_lb60_snd_devdata);
 196 +       qi_lb60_snd_devdata.dev = &qi_lb60_snd_device->dev;
 197 +       ret = platform_device_add(qi_lb60_snd_device);
 198 +       if (ret) {
 199 +               pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret);
 200 +               goto err_unset_pdata;
 201 +       }
 202 +
 203 +        return 0;
 204 +
 205 +err_unset_pdata:
 206 +       platform_set_drvdata(qi_lb60_snd_device, NULL);
 207 +/*err_gpio_free_amp:*/
 208 +       gpio_free(QI_LB60_AMP_GPIO);
 209 +err_gpio_free_snd:
 210 +       gpio_free(QI_LB60_SND_GPIO);
 211 +err_device_put:
 212 +       platform_device_put(qi_lb60_snd_device);
 213 +
 214 +       return ret;
 215 +}
 216 +module_init(qi_lb60_init);
 217 +
 218 +static void __exit qi_lb60_exit(void)
 219 +{
 220 +       gpio_free(QI_LB60_AMP_GPIO);
 221 +       gpio_free(QI_LB60_SND_GPIO);
 222 +       platform_device_unregister(qi_lb60_snd_device);
 223 +}
 224 +module_exit(qi_lb60_exit);
 225 +
 226 +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
 227 +MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
 228 +MODULE_LICENSE("GPL v2");
 229 --
 230 1.5.6.5
 231