You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
196 lines
5.3 KiB
Diff
196 lines
5.3 KiB
Diff
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_JZ4740_CODEC
|
|
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_JZ4740_CODEC
|
|
+ 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 +1,155 @@
|
|
+/*
|
|
+ * 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/jz4740.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;
|
|
+
|
|
+ snd_soc_dapm_nc_pin(codec, "LIN");
|
|
+ snd_soc_dapm_nc_pin(codec, "RIN");
|
|
+
|
|
+ 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;
|
|
+ }
|
|
+
|
|
+ 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 = "jz4740",
|
|
+ .cpu_dai = &jz4740_i2s_dai,
|
|
+ .codec_dai = &jz4740_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_jz4740_codec,
|
|
+};
|
|
+
|
|
+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");
|