mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-15 12:25:20 +02:00
e0e5bd88de
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22463 3c298f89-4303-0410-b956-a3cf2f4a3e73
212 lines
5.8 KiB
Diff
212 lines
5.8 KiB
Diff
From 498365d473a863fdfceff28315ce8561752bc356 Mon Sep 17 00:00:00 2001
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From: Lars-Peter Clausen <lars@metafoo.de>
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Date: Sat, 19 Jun 2010 16:52:51 +0200
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Subject: [PATCH] ASoC: JZ4740: Add qi_lb60 board driver
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This patch adds ASoC support for the qi_lb60 board.
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Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
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Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
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Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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---
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sound/soc/jz4740/Kconfig | 9 +++
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sound/soc/jz4740/Makefile | 4 +
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sound/soc/jz4740/qi_lb60.c | 166 ++++++++++++++++++++++++++++++++++++++++++++
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3 files changed, 179 insertions(+), 0 deletions(-)
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create mode 100644 sound/soc/jz4740/qi_lb60.c
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--- a/sound/soc/jz4740/Kconfig
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+++ b/sound/soc/jz4740/Kconfig
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@@ -12,3 +12,12 @@ config SND_JZ4740_SOC_I2S
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help
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Say Y if you want to use I2S protocol and I2S codec on Ingenic JZ4740
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based boards.
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+
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+config SND_JZ4740_SOC_QI_LB60
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+ tristate "SoC Audio support for Qi LB60"
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+ depends on SND_JZ4740_SOC && JZ4740_QI_LB60
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+ select SND_JZ4740_SOC_I2S
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+ select SND_SOC_JZ4740_CODEC
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+ help
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+ Say Y if you want to add support for ASoC audio on the Qi LB60 board
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+ a.k.a Qi Ben NanoNote.
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--- a/sound/soc/jz4740/Makefile
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+++ b/sound/soc/jz4740/Makefile
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@@ -7,3 +7,7 @@ snd-soc-jz4740-i2s-objs := jz4740-i2s.o
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obj-$(CONFIG_SND_JZ4740_SOC) += snd-soc-jz4740.o
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obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o
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+# Jz4740 Machine Support
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+snd-soc-qi-lb60-objs := qi_lb60.o
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+
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+obj-$(CONFIG_SND_JZ4740_SOC_QI_LB60) += snd-soc-qi-lb60.o
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--- /dev/null
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+++ b/sound/soc/jz4740/qi_lb60.c
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@@ -0,0 +1,166 @@
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+/*
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+ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ * You should have received a copy of the GNU General Public License along
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+ * with this program; if not, write to the Free Software Foundation, Inc.,
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+ * 675 Mass Ave, Cambridge, MA 02139, USA.
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+ *
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/moduleparam.h>
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+#include <linux/timer.h>
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+#include <linux/interrupt.h>
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+#include <linux/platform_device.h>
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+#include <sound/core.h>
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+#include <sound/pcm.h>
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+#include <sound/soc.h>
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+#include <sound/soc-dapm.h>
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+#include <linux/gpio.h>
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+
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+#include "../codecs/jz4740.h"
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+#include "jz4740-pcm.h"
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+#include "jz4740-i2s.h"
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+
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+
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+#define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29)
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+#define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4)
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+
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+static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget,
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+ struct snd_kcontrol *ctrl, int event)
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+{
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+ int on = 0;
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+ if (event & SND_SOC_DAPM_POST_PMU)
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+ on = 1;
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+ else if (event & SND_SOC_DAPM_PRE_PMD)
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+ on = 0;
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+
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+ gpio_set_value(QI_LB60_SND_GPIO, on);
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+ gpio_set_value(QI_LB60_AMP_GPIO, on);
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+
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+ return 0;
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+}
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+
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+static const struct snd_soc_dapm_widget qi_lb60_widgets[] = {
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+ SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event),
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+ SND_SOC_DAPM_MIC("Mic", NULL),
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+};
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+
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+static const struct snd_soc_dapm_route qi_lb60_routes[] = {
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+ {"Mic", NULL, "MIC"},
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+ {"Speaker", NULL, "LOUT"},
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+ {"Speaker", NULL, "ROUT"},
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+};
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+
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+#define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \
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+ SND_SOC_DAIFMT_NB_NF | \
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+ SND_SOC_DAIFMT_CBM_CFM)
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+
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+static int qi_lb60_codec_init(struct snd_soc_codec *codec)
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+{
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+ int ret;
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+ struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai;
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+
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+ snd_soc_dapm_nc_pin(codec, "LIN");
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+ snd_soc_dapm_nc_pin(codec, "RIN");
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+
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+ ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT);
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+ if (ret < 0) {
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+ dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret);
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+ return ret;
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+ }
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+
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+ snd_soc_dapm_new_controls(codec, qi_lb60_widgets, ARRAY_SIZE(qi_lb60_widgets));
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+ snd_soc_dapm_add_routes(codec, qi_lb60_routes, ARRAY_SIZE(qi_lb60_routes));
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+ snd_soc_dapm_sync(codec);
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+
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+ return 0;
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+}
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+
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+static struct snd_soc_dai_link qi_lb60_dai = {
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+ .name = "jz4740",
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+ .stream_name = "jz4740",
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+ .cpu_dai = &jz4740_i2s_dai,
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+ .codec_dai = &jz4740_codec_dai,
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+ .init = qi_lb60_codec_init,
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+};
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+
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+static struct snd_soc_card qi_lb60 = {
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+ .name = "QI LB60",
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+ .dai_link = &qi_lb60_dai,
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+ .num_links = 1,
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+ .platform = &jz4740_soc_platform,
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+};
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+
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+static struct snd_soc_device qi_lb60_snd_devdata = {
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+ .card = &qi_lb60,
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+ .codec_dev = &soc_codec_dev_jz4740_codec,
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+};
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+
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+static struct platform_device *qi_lb60_snd_device;
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+
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+static int __init qi_lb60_init(void)
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+{
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+ int ret;
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+
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+ qi_lb60_snd_device = platform_device_alloc("soc-audio", -1);
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+
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+ if (!qi_lb60_snd_device)
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+ return -ENOMEM;
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+
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+ ret = gpio_request(QI_LB60_SND_GPIO, "SND");
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+ if (ret) {
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+ pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n",
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+ QI_LB60_SND_GPIO, ret);
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+ goto err_device_put;
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+ }
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+
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+ ret = gpio_request(QI_LB60_AMP_GPIO, "AMP");
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+ if (ret) {
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+ pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n",
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+ QI_LB60_AMP_GPIO, ret);
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+ goto err_gpio_free_snd;
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+ }
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+
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+ gpio_direction_output(QI_LB60_SND_GPIO, 0);
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+ gpio_direction_output(QI_LB60_AMP_GPIO, 0);
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+
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+ platform_set_drvdata(qi_lb60_snd_device, &qi_lb60_snd_devdata);
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+ qi_lb60_snd_devdata.dev = &qi_lb60_snd_device->dev;
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+
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+ ret = platform_device_add(qi_lb60_snd_device);
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+ if (ret) {
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+ pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret);
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+ goto err_unset_pdata;
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+ }
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+
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+ return 0;
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+
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+err_unset_pdata:
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+ platform_set_drvdata(qi_lb60_snd_device, NULL);
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+/*err_gpio_free_amp:*/
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+ gpio_free(QI_LB60_AMP_GPIO);
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+err_gpio_free_snd:
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+ gpio_free(QI_LB60_SND_GPIO);
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+err_device_put:
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+ platform_device_put(qi_lb60_snd_device);
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+
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+ return ret;
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+}
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+module_init(qi_lb60_init);
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+
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+static void __exit qi_lb60_exit(void)
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+{
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+ gpio_free(QI_LB60_AMP_GPIO);
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+ gpio_free(QI_LB60_SND_GPIO);
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+ platform_device_unregister(qi_lb60_snd_device);
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+}
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+module_exit(qi_lb60_exit);
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+
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+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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+MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
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+MODULE_LICENSE("GPL v2");
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