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Diffstat (limited to 'target/linux/xburst/patches-2.6.35/067-n526-sound.patch')
-rw-r--r--target/linux/xburst/patches-2.6.35/067-n526-sound.patch209
1 files changed, 209 insertions, 0 deletions
diff --git a/target/linux/xburst/patches-2.6.35/067-n526-sound.patch b/target/linux/xburst/patches-2.6.35/067-n526-sound.patch
new file mode 100644
index 0000000..3426820
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.35/067-n526-sound.patch
@@ -0,0 +1,209 @@
+From b1c42b78b7bd779288f340e202820aa2c2cf6629 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 24 Apr 2010 12:38:41 +0200
+Subject: [PATCH] Add N526 sound SoC board driver
+
+---
+ sound/soc/jz4740/Kconfig | 8 ++
+ sound/soc/jz4740/Makefile | 2 +
+ sound/soc/jz4740/n526.c | 169 +++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 179 insertions(+), 0 deletions(-)
+ create mode 100644 sound/soc/jz4740/n526.c
+
+--- a/sound/soc/jz4740/Kconfig
++++ b/sound/soc/jz4740/Kconfig
+@@ -29,3 +29,11 @@ config SND_JZ4740_SOC_N516
+ select SND_SOC_JZCODEC
+ help
+ Say Y if you want to enable support for SoC audio on the Hanvon N516.
++
++config SND_JZ4740_SOC_N526
++ tristate "SoC Audio support for Hanvon N526 eBook reader"
++ depends on SND_JZ4740_SOC && JZ4740_N526
++ select SND_JZ4740_SOC_I2S
++ select SND_SOC_JZCODEC
++ help
++ Say Y if you want to enable support for SoC audio on the Hanvon N526.
+--- a/sound/soc/jz4740/Makefile
++++ b/sound/soc/jz4740/Makefile
+@@ -10,6 +10,8 @@ obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-
+ # Jz4740 Machine Support
+ snd-soc-qi-lb60-objs := qi_lb60.o
+ snd-soc-n516-objs := n516.o
++snd-soc-n526-objs := n526.o
+
+ obj-$(CONFIG_SND_JZ4740_SOC_QI_LB60) += snd-soc-qi-lb60.o
+ obj-$(CONFIG_SND_JZ4740_SOC_N516) += snd-soc-n516.o
++obj-$(CONFIG_SND_JZ4740_SOC_N526) += snd-soc-n526.o
+--- /dev/null
++++ b/sound/soc/jz4740/n526.c
+@@ -0,0 +1,169 @@
++/*
++ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/timer.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/soc.h>
++#include <sound/soc-dapm.h>
++#include <linux/gpio.h>
++
++#include "../codecs/jzcodec.h"
++#include "jz4740-pcm.h"
++#include "jz4740-i2s.h"
++
++#define N526_AMP_EN_GPIO JZ_GPIO_PORTD(4)
++
++static int n526_spk_event(struct snd_soc_dapm_widget *widget,
++ struct snd_kcontrol *ctrl, int event)
++{
++ gpio_set_value(N526_AMP_EN_GPIO, !SND_SOC_DAPM_EVENT_OFF(event));
++ return 0;
++}
++
++static const struct snd_soc_dapm_widget n526_widgets[] = {
++ SND_SOC_DAPM_SPK("Speaker", n526_spk_event),
++ SND_SOC_DAPM_HP("Headphone", NULL),
++ SND_SOC_DAPM_MIC("Mic", NULL),
++};
++
++static const struct snd_soc_dapm_route n526_routes[] = {
++ {"Mic", NULL, "MIC"},
++ {"Speaker", NULL, "LOUT"},
++ {"Speaker", NULL, "ROUT"},
++ {"Headphone", NULL, "LOUT"},
++ {"Headphone", NULL, "ROUT"},
++};
++
++static const struct snd_kcontrol_new n526_controls[] = {
++ SOC_DAPM_PIN_SWITCH("Speaker"),
++};
++
++#define N526_DAIFMT (SND_SOC_DAIFMT_I2S | \
++ SND_SOC_DAIFMT_NB_NF | \
++ SND_SOC_DAIFMT_CBM_CFM)
++
++static int n526_codec_init(struct snd_soc_codec *codec)
++{
++ int ret;
++ struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai;
++ struct snd_soc_dai *codec_dai = codec->socdev->card->dai_link->codec_dai;
++
++ snd_soc_dapm_nc_pin(codec, "LIN");
++ snd_soc_dapm_nc_pin(codec, "RIN");
++
++ ret = snd_soc_dai_set_fmt(codec_dai, N526_DAIFMT);
++ if (ret < 0) {
++ dev_err(codec->dev, "Failed to set codec dai format: %d\n", ret);
++ return ret;
++ }
++
++ ret = snd_soc_dai_set_fmt(cpu_dai, N526_DAIFMT);
++ if (ret < 0) {
++ dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret);
++ return ret;
++ }
++
++ ret = snd_soc_dai_set_sysclk(codec_dai, JZCODEC_SYSCLK, 111,
++ SND_SOC_CLOCK_IN);
++ if (ret < 0) {
++ dev_err(codec->dev, "Failed to set codec dai sysclk: %d\n", ret);
++ return ret;
++ }
++
++ snd_soc_dapm_new_controls(codec, n526_widgets, ARRAY_SIZE(n526_widgets));
++
++ snd_soc_add_controls(codec, n526_controls,
++ ARRAY_SIZE(n526_controls));
++
++ snd_soc_dapm_add_routes(codec, n526_routes, ARRAY_SIZE(n526_routes));
++
++ snd_soc_dapm_sync(codec);
++
++ return 0;
++}
++
++static struct snd_soc_dai_link n526_dai = {
++ .name = "jz-codec",
++ .stream_name = "JZCODEC",
++ .cpu_dai = &jz4740_i2s_dai,
++ .codec_dai = &jz_codec_dai,
++ .init = n526_codec_init,
++};
++
++static struct snd_soc_card n526 = {
++ .name = "N526",
++ .dai_link = &n526_dai,
++ .num_links = 1,
++ .platform = &jz4740_soc_platform,
++};
++
++static struct snd_soc_device n526_snd_devdata = {
++ .card = &n526,
++ .codec_dev = &soc_codec_dev_jzcodec,
++};
++
++static struct platform_device *n526_snd_device;
++
++static int __init n526_init(void)
++{
++ int ret;
++
++ n526_snd_device = platform_device_alloc("soc-audio", -1);
++
++ if (!n526_snd_device)
++ return -ENOMEM;
++
++ ret = gpio_request(N526_AMP_EN_GPIO, "AMP");
++ if (ret) {
++ pr_err("n526 snd: Failed to request AMP GPIO(%d): %d\n",
++ N526_AMP_EN_GPIO, ret);
++ goto err_device_put;
++ }
++
++ gpio_direction_output(JZ_GPIO_PORTD(4), 0);
++
++ platform_set_drvdata(n526_snd_device, &n526_snd_devdata);
++ n526_snd_devdata.dev = &n526_snd_device->dev;
++ ret = platform_device_add(n526_snd_device);
++ if (ret) {
++ pr_err("n526 snd: Failed to add snd soc device: %d\n", ret);
++ goto err_unset_pdata;
++ }
++
++ return 0;
++
++err_unset_pdata:
++ platform_set_drvdata(n526_snd_device, NULL);
++ gpio_free(N526_AMP_EN_GPIO);
++err_device_put:
++ platform_device_put(n526_snd_device);
++
++ return ret;
++}
++module_init(n526_init);
++
++static void __exit n526_exit(void)
++{
++ gpio_free(N526_AMP_EN_GPIO);
++ platform_device_unregister(n526_snd_device);
++}
++module_exit(n526_exit);
++
++MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
++MODULE_DESCRIPTION("ALSA SoC N526 audio support");
++MODULE_LICENSE("GPL v2");