[alsa-devel] [PATCH] Add initial support of Mitac mioa701 device SoC.
Robert Jarzmik
robert.jarzmik at free.fr
Sat Feb 7 14:01:58 CET 2009
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 at 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 at free.fr)");
+MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
+MODULE_LICENSE("GPL");
--
1.5.6.5
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