This machine driver enables sound functions on Mitac mio a701 smartphone. Build upon ASoC v1, it handles : - rear speaker - front speaker - microphone - GSM

A global "Mio Mode" switch is not yet provided to cope with audio path setup. As balance on audio chip line is no more assured, an incorrect setup can produce a lot of heat and even fry the battery behind the wm9713 and the speaker amplificator.

It doesn't cope with : - headset jack - mio master mode - master volume control

This driver is backported from ASoc v2, and amputated from scenario setups and master volume control.

Signed-off-by: Robert Jarzmik robert.jarzmik@free.fr --- sound/soc/pxa/Kconfig | 9 ++ sound/soc/pxa/Makefile | 2 + sound/soc/pxa/mioa701_wm9713.c | 250 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 261 insertions(+), 0 deletions(-) create mode 100644 sound/soc/pxa/mioa701_wm9713.c

diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig index f82e106..b385404 100644 --- a/sound/soc/pxa/Kconfig +++ b/sound/soc/pxa/Kconfig @@ -97,3 +97,12 @@ config SND_SOC_ZYLONITE help Say Y if you want to add support for SoC audio on the Marvell Zylonite reference platform. + +config SND_PXA2XX_SOC_MIOA701 + tristate "SoC Audio support for MIO A701" + depends on SND_PXA2XX_SOC && MACH_MIOA701 + select SND_PXA2XX_SOC_AC97 + select SND_SOC_WM9713 + help + Say Y if you want to add support for SoC audio on the + MIO A701. diff --git a/sound/soc/pxa/Makefile b/sound/soc/pxa/Makefile index 08a9f27..9a6d27c 100644 --- a/sound/soc/pxa/Makefile +++ b/sound/soc/pxa/Makefile @@ -18,6 +18,7 @@ snd-soc-spitz-objs := spitz.o snd-soc-em-x270-objs := em-x270.o snd-soc-palm27x-objs := palm27x.o snd-soc-zylonite-objs := zylonite.o +snd-soc-mioa701-objs := mioa701_wm9713.o

obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o @@ -26,4 +27,5 @@ obj-$(CONFIG_SND_PXA2XX_SOC_E800) += snd-soc-e800.o obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o obj-$(CONFIG_SND_PXA2XX_SOC_PALM27X) += snd-soc-palm27x.o +obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o obj-$(CONFIG_SND_SOC_ZYLONITE) += snd-soc-zylonite.o diff --git a/sound/soc/pxa/mioa701_wm9713.c b/sound/soc/pxa/mioa701_wm9713.c new file mode 100644 index 0000000..839f928 --- /dev/null +++ b/sound/soc/pxa/mioa701_wm9713.c @@ -0,0 +1,250 @@ +/* + * Handles the Mitac mioa701 SoC system + * + * Copyright (C) 2008 Robert Jarzmik + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation in version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * This is a little schema of the sound interconnections : + * + * Sagem X200 Wolfson WM9713 + * +--------+ +-------------------+ Rear Speaker + * | | | | /-+ + * | +--->----->---+MONOIN SPKL+--->----+-+ | + * | GSM | | | | | | + * | +--->----->---+PCBEEP SPKR+--->----+-+ | + * | CHIP | | | -+ + * | +---<-----<---+MONO | + * | | | | Front Speaker + * +--------+ | | /-+ + * | HPL+--->----+-+ | + * | | | | | + * | OUT3+--->----+-+ | + * | | -+ + * | | + * | | Front Micro + * | | + + * | MIC1+-----<--+o+ + * | | + + * +-------------------+ --- + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/platform_device.h> + +#include <asm/mach-types.h> +#include <mach/audio.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> +#include <sound/ac97_codec.h> + +#include "pxa2xx-pcm.h" +#include "pxa2xx-ac97.h" +#include "../codecs/wm9713.h" + +#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x) + +#define AC97_GPIO_PULL 0x58 + +/* Use GPIO8 for rear speaker amplificator */ +static int rear_amp_power(struct snd_soc_codec *codec, int power) +{ + unsigned short reg; + + if (power) { + reg = snd_soc_read(codec, AC97_GPIO_CFG); + snd_soc_write(codec, AC97_GPIO_CFG, reg | 0x0100); + reg = snd_soc_read(codec, AC97_GPIO_PULL); + snd_soc_write(codec, AC97_GPIO_PULL, reg | (1<<15)); + } else { + reg = snd_soc_read(codec, AC97_GPIO_CFG); + snd_soc_write(codec, AC97_GPIO_CFG, reg & ~0x0100); + reg = snd_soc_read(codec, AC97_GPIO_PULL); + snd_soc_write(codec, AC97_GPIO_PULL, reg & ~(1<<15)); + } + + return 0; +} + +static int rear_amp_event(struct snd_soc_dapm_widget *widget, + struct snd_kcontrol *kctl, int event) +{ + struct snd_soc_codec *codec = widget->codec; + + return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event)); +} + +/* mioa701 machine dapm widgets */ +static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = { + SND_SOC_DAPM_SPK("Front Speaker", NULL), + SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event), + SND_SOC_DAPM_MIC("Headset", NULL), + SND_SOC_DAPM_LINE("GSM Line Out", NULL), + SND_SOC_DAPM_LINE("GSM Line In", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_MIC("Front Mic", NULL), +}; + +static const struct snd_soc_dapm_route audio_map[] = { + /* Call Mic */ + {"Mic Bias", NULL, "Front Mic"}, + {"MIC1", NULL, "Mic Bias"}, + + /* Headset Mic */ + {"LINEL", NULL, "Headset Mic"}, + {"LINER", NULL, "Headset Mic"}, + + /* GSM Module */ + {"MONOIN", NULL, "GSM Line Out"}, + {"PCBEEP", NULL, "GSM Line Out"}, + {"GSM Line In", NULL, "MONO"}, + + /* headphone connected to HPL, HPR */ + {"Headset", NULL, "HPL"}, + {"Headset", NULL, "HPR"}, + + /* front speaker connected to HPL, OUT3 */ + {"Front Speaker", NULL, "HPL"}, + {"Front Speaker", NULL, "OUT3"}, + + /* rear speaker connected to SPKL, SPKR */ + {"Rear Speaker", NULL, "SPKL"}, + {"Rear Speaker", NULL, "SPKR"}, +}; + +static int mioa701_wm9713_init(struct snd_soc_codec *codec) +{ + unsigned short reg; + + /* Add mioa701 specific widgets */ + snd_soc_dapm_new_controls(codec, ARRAY_AND_SIZE(mioa701_dapm_widgets)); + + /* Set up mioa701 specific audio path audio_mapnects */ + snd_soc_dapm_add_routes(codec, ARRAY_AND_SIZE(audio_map)); + + /* Prepare GPIO8 for rear speaker amplificator */ + reg = codec->read(codec, AC97_GPIO_CFG); + codec->write(codec, AC97_GPIO_CFG, reg | 0x0100); + + /* Prepare MIC input */ + reg = codec->read(codec, AC97_3D_CONTROL); + codec->write(codec, AC97_3D_CONTROL, reg | 0xc000); + + snd_soc_dapm_enable_pin(codec, "Front Speaker"); + snd_soc_dapm_enable_pin(codec, "Rear Speaker"); + snd_soc_dapm_enable_pin(codec, "Front Mic"); + snd_soc_dapm_enable_pin(codec, "GSM Line In"); + snd_soc_dapm_enable_pin(codec, "GSM Line Out"); + snd_soc_dapm_sync(codec); + + return 0; +} + +static struct snd_soc_ops mioa701_ops; + +static struct snd_soc_dai_link mioa701_dai[] = { + { + .name = "AC97", + .stream_name = "AC97 HiFi", + .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], + .codec_dai = &wm9713_dai[WM9713_DAI_AC97_HIFI], + .init = mioa701_wm9713_init, + .ops = &mioa701_ops, + }, + { + .name = "AC97 Aux", + .stream_name = "AC97 Aux", + .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], + .codec_dai = &wm9713_dai[WM9713_DAI_AC97_AUX], + .ops = &mioa701_ops, + }, +}; + +static struct snd_soc_card mioa701 = { + .name = "MioA701", + .platform = &pxa2xx_soc_platform, + .dai_link = mioa701_dai, + .num_links = ARRAY_SIZE(mioa701_dai), +}; + +static struct snd_soc_device mioa701_snd_devdata = { + .card = &mioa701, + .codec_dev = &soc_codec_dev_wm9713, +}; + +static struct platform_device *mioa701_snd_device; + +static int mioa701_wm9713_probe(struct platform_device *pdev) +{ + int ret; + + if (!machine_is_mioa701()) + return -ENODEV; + + dev_warn(&pdev->dev, "Be warned that incorrect mixes/muxes setup will" + "lead to overheating and possible destruction of your device." + "Do not use without a good knowledge of mio's board design!\n"); + + mioa701_snd_device = platform_device_alloc("soc-audio", -1); + if (!mioa701_snd_device) + return -ENOMEM; + + platform_set_drvdata(mioa701_snd_device, &mioa701_snd_devdata); + mioa701_snd_devdata.dev = &mioa701_snd_device->dev; + + ret = platform_device_add(mioa701_snd_device); + if (!ret) + return 0; + + platform_device_put(mioa701_snd_device); + return ret; +} + +static int __devexit mioa701_wm9713_remove(struct platform_device *pdev) +{ + platform_device_unregister(mioa701_snd_device); + return 0; +} + +static struct platform_driver mioa701_wm9713_driver = { + .probe = mioa701_wm9713_probe, + .remove = __devexit_p(mioa701_wm9713_remove), + .driver = { + .name = "mioa701-wm9713", + .owner = THIS_MODULE, + }, +}; + +static int __init mioa701_asoc_init(void) +{ + return platform_driver_register(&mioa701_wm9713_driver); +} + +static void __exit mioa701_asoc_exit(void) +{ + platform_driver_unregister(&mioa701_wm9713_driver); +} + +module_init(mioa701_asoc_init); +module_exit(mioa701_asoc_exit); + +/* Module information */ +MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)"); +MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701"); +MODULE_LICENSE("GPL");