[xburst] Add 2.6.37 support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24914 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 342 insertions, 0 deletions

diff --git a/target/linux/xburst/patches-2.6.37/010-n516-sound.patch b/target/linux/xburst/patches-2.6.37/010-n516-sound.patch
new file mode 100644
index 000000000..99be82991
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.37/010-n516-sound.patch
@@ -0,0 +1,342 @@
+From f5d9169627e0b0d7111011c9b10f1ff533c8dc85 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sun, 1 Aug 2010 21:34:54 +0200
+Subject: [PATCH 08/23] Add N516 sound SoC board driver
+
+---
+ sound/soc/jz4740/Kconfig  |    8 ++
+ sound/soc/jz4740/Makefile |    2 +
+ sound/soc/jz4740/n516.c   |  303 +++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 313 insertions(+), 0 deletions(-)
+ create mode 100644 sound/soc/jz4740/n516.c
+
+--- a/sound/soc/jz4740/Kconfig
++++ b/sound/soc/jz4740/Kconfig
+@@ -21,3 +21,11 @@ config SND_JZ4740_SOC_QI_LB60
+ 	help
+ 	  Say Y if you want to add support for ASoC audio on the Qi LB60 board
+ 	  a.k.a Qi Ben NanoNote.
++
++config SND_JZ4740_SOC_N516
++	tristate "SoC Audio support for Hanvon N516 eBook reader"
++	depends on SND_JZ4740_SOC && JZ4740_N516
++	select SND_JZ4740_SOC_I2S
++    select SND_SOC_JZCODEC
++	help
++	  Say Y if you want to enable support for SoC audio on the Hanvon N516.
+--- a/sound/soc/jz4740/Makefile
++++ b/sound/soc/jz4740/Makefile
+@@ -9,5 +9,7 @@ obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-
+ 
+ # Jz4740 Machine Support
+ snd-soc-qi-lb60-objs := qi_lb60.o
++snd-soc-n516-objs := n516.o
+ 
+ obj-$(CONFIG_SND_JZ4740_SOC_QI_LB60) += snd-soc-qi-lb60.o
++obj-$(CONFIG_SND_JZ4740_SOC_N516) += snd-soc-n516.o
+--- /dev/null
++++ b/sound/soc/jz4740/n516.c
+@@ -0,0 +1,303 @@
++/*
++ * Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
++ *  OpenInkpot project
++ * Copyright (C) 2010, 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/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 <sound/jack.h>
++#include <linux/gpio.h>
++#include <linux/workqueue.h>
++
++#include "../codecs/jzcodec.h"
++#include "jz4740-pcm.h"
++#include "jz4740-i2s.h"
++
++#include <asm/mach-jz4740/board-n516.h>
++
++enum {
++	N516_SPEAKER_AUTO = 0,
++	N516_SPEAKER_OFF = 1,
++	N516_SPEAKER_ON = 2,
++};
++
++static int n516_speaker_mode;
++static struct snd_soc_codec *n516_codec;
++static struct work_struct n516_headphone_work;
++
++static void n516_ext_control(void)
++{
++	if (!n516_codec)
++		return;
++
++	switch (n516_speaker_mode) {
++	case N516_SPEAKER_ON:
++		snd_soc_dapm_enable_pin(n516_codec, "Speaker");
++		break;
++	case N516_SPEAKER_OFF:
++		snd_soc_dapm_disable_pin(n516_codec, "Speaker");
++	    break;
++	case N516_SPEAKER_AUTO:
++		if (snd_soc_dapm_get_pin_status(n516_codec, "Headphone"))
++			snd_soc_dapm_disable_pin(n516_codec, "Speaker");
++		else
++			snd_soc_dapm_enable_pin(n516_codec, "Speaker");
++		break;
++	default:
++		break;
++	}
++
++    /* signal a DAPM event */
++    snd_soc_dapm_sync(n516_codec);
++}
++
++static int n516_speaker_event(struct snd_soc_dapm_widget *widget,
++			     struct snd_kcontrol *ctrl, int event)
++{
++	int on = !SND_SOC_DAPM_EVENT_OFF(event);
++
++	gpio_set_value(GPIO_SPEAKER_ENABLE, on);
++
++	return 0;
++}
++
++static void n516_headphone_event_work(struct work_struct *work)
++{
++	n516_ext_control();
++}
++
++static int n516_headphone_event(struct snd_soc_dapm_widget *widget,
++			     struct snd_kcontrol *ctrl, int event)
++{
++	/* We can't call soc_dapm_sync from a event handler */
++	if (event & (SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD))
++		schedule_work(&n516_headphone_work);
++	return 0;
++}
++
++static const struct snd_soc_dapm_widget n516_widgets[] = {
++	SND_SOC_DAPM_SPK("Speaker", n516_speaker_event),
++	SND_SOC_DAPM_HP("Headphone", n516_headphone_event),
++	SND_SOC_DAPM_MIC("Mic", NULL),
++};
++
++static const struct snd_soc_dapm_route n516_routes[] = {
++	{"Mic", NULL, "MIC"},
++	{"Speaker", NULL, "LOUT"},
++	{"Speaker", NULL, "ROUT"},
++	{"Headphone", NULL, "LOUT"},
++	{"Headphone", NULL, "ROUT"},
++};
++
++static const char *n516_speaker_modes[] = {"Auto", "Off", "On"};
++static const struct soc_enum n516_speaker_mode_enum =
++	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(n516_speaker_modes), n516_speaker_modes);
++
++static int n516_get_speaker_mode(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	ucontrol->value.integer.value[0] = n516_speaker_mode;
++	return 0;
++}
++
++static int n516_set_speaker_mode(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	if (n516_speaker_mode == ucontrol->value.integer.value[0])
++		return 0;
++
++	n516_speaker_mode = ucontrol->value.integer.value[0];
++	n516_ext_control();
++	return 1;
++}
++
++static const struct snd_kcontrol_new n516_controls[] = {
++	SOC_ENUM_EXT("Speaker Function", n516_speaker_mode_enum,
++		n516_get_speaker_mode, n516_set_speaker_mode),
++};
++
++#define N516_DAIFMT (SND_SOC_DAIFMT_I2S | \
++			SND_SOC_DAIFMT_NB_NF | \
++			SND_SOC_DAIFMT_CBM_CFM)
++
++static int n516_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;
++
++	n516_codec = codec;
++
++	snd_soc_dapm_nc_pin(codec, "LIN");
++	snd_soc_dapm_nc_pin(codec, "RIN");
++
++	ret = snd_soc_dai_set_fmt(codec_dai, N516_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, N516_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;
++	}
++
++	ret = snd_soc_add_controls(codec, n516_controls,
++		ARRAY_SIZE(n516_controls));
++	if (ret) {
++		dev_err(codec->dev, "Failed to add controls: %d\n", ret);
++		return ret;
++	}
++
++
++	ret = snd_soc_dapm_new_controls(codec, n516_widgets,
++		ARRAY_SIZE(n516_widgets));
++	if (ret) {
++		dev_err(codec->dev, "Failed to add dapm controls: %d\n", ret);
++		return ret;
++	}
++
++	ret = snd_soc_dapm_add_routes(codec, n516_routes, ARRAY_SIZE(n516_routes));
++	if (ret) {
++		dev_err(codec->dev, "Failed to add dapm routes: %d\n", ret);
++		return ret;
++	}
++
++	snd_soc_dapm_sync(codec);
++
++	return 0;
++}
++
++static struct snd_soc_dai_link n516_dai = {
++	.name = "jz-codec",
++	.stream_name = "JZCODEC",
++	.cpu_dai = &jz4740_i2s_dai,
++	.codec_dai = &jz_codec_dai,
++	.init = n516_codec_init,
++};
++
++static struct snd_soc_card n516_card = {
++	.name = "N516",
++	.dai_link = &n516_dai,
++	.num_links = 1,
++	.platform = &jz4740_soc_platform,
++};
++
++static struct snd_soc_device n516_snd_devdata = {
++	.card = &n516_card,
++	.codec_dev = &soc_codec_dev_jzcodec,
++};
++
++static struct platform_device *n516_snd_device;
++
++static struct snd_soc_jack n516_hp_jack;
++
++static struct snd_soc_jack_pin n516_hp_pin = {
++	.pin = "Headphone",
++	.mask = SND_JACK_HEADPHONE,
++};
++
++static struct snd_soc_jack_gpio n516_hp_gpio = {
++	.gpio = GPIO_HPHONE_DETECT,
++	.name = "Headphone detect",
++	.report = SND_JACK_HEADPHONE,
++	.debounce_time = 100,
++};
++
++static int __init n516_add_headphone_jack(void)
++{
++	int ret;
++
++	ret = snd_soc_jack_new(&n516_card, "Headphone jack",
++		SND_JACK_HEADPHONE, &n516_hp_jack);
++	if (ret)
++		return ret;
++
++	ret = snd_soc_jack_add_pins(&n516_hp_jack, 1, &n516_hp_pin);
++	if (ret)
++		return ret;
++
++	ret = snd_soc_jack_add_gpios(&n516_hp_jack, 1, &n516_hp_gpio);
++
++	return ret;
++}
++
++static int __init n516_init(void)
++{
++	int ret;
++
++	n516_snd_device = platform_device_alloc("soc-audio", -1);
++
++	if (!n516_snd_device)
++		return -ENOMEM;
++
++	ret = gpio_request(GPIO_SPEAKER_ENABLE, "Speaker enable");
++	if (ret) {
++		pr_err("n516 snd: Failed to request SPEAKER_ENABLE GPIO(%d): %d\n",
++				GPIO_SPEAKER_ENABLE, ret);
++		goto err_device_put;
++	}
++
++	gpio_direction_output(GPIO_SPEAKER_ENABLE, 0);
++	INIT_WORK(&n516_headphone_work, n516_headphone_event_work);
++
++	platform_set_drvdata(n516_snd_device, &n516_snd_devdata);
++	n516_snd_devdata.dev = &n516_snd_device->dev;
++	ret = platform_device_add(n516_snd_device);
++	if (ret) {
++		pr_err("n516 snd: Failed to add snd soc device: %d\n", ret);
++		goto err_unset_pdata;
++	}
++
++	ret = n516_add_headphone_jack();
++	/* We can live without it, so just print a warning */
++	if (ret)
++		pr_warning("n516 snd: Failed to initalise headphone jack: %d\n", ret);
++
++	return 0;
++
++err_unset_pdata:
++	platform_set_drvdata(n516_snd_device, NULL);
++/*err_gpio_free_speaker:*/
++	gpio_free(GPIO_SPEAKER_ENABLE);
++err_device_put:
++	platform_device_put(n516_snd_device);
++
++	return ret;
++}
++module_init(n516_init);
++
++static void __exit n516_exit(void)
++{
++	snd_soc_jack_free_gpios(&n516_hp_jack, 1, &n516_hp_gpio);
++	gpio_free(GPIO_SPEAKER_ENABLE);
++	platform_device_unregister(n516_snd_device);
++}
++module_exit(n516_exit);
++
++MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
++MODULE_DESCRIPTION("ALSA SoC N516 Audio support");
++MODULE_LICENSE("GPL v2");