+++ /dev/null
-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");
projects / openwrt / openwrt.git / blobdiff