diff options
Diffstat (limited to 'target/linux')
3 files changed, 313 insertions, 0 deletions
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig index b19fd8fd8..93dabb06a 100644 --- a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig @@ -14,6 +14,14 @@ config SND_JZ4740_SOC_QI_LB60 help Say Y if you want to add support for SoC audio of internal codec on Ingenic Jz4740 QI_LB60 board. +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. + config SND_JZ4740_SOC_N526 tristate "SoC Audio support for Hanvon N526 eBook reader" depends on SND_JZ4740_SOC && JZ4740_N526 diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile index 0b429cf01..e7952d3b8 100644 --- a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile +++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile @@ -9,7 +9,9 @@ obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o # Jz4740 Machine Support snd-soc-qi-lb60-objs := qi_lb60.o +snd-soc-n516-objs := n516.o snd-soc-n526-objs := n526.o obj-$(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 diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/n516.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/n516.c new file mode 100644 index 000000000..9cb51c20f --- /dev/null +++ b/target/linux/xburst/files-2.6.32/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"); |