+++ /dev/null
-/*
- * 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 / svn-archive / archive.git / blobdiff