GTA04: Add Platform Android Jack driver

This driver is based on the tuna Platform SEC Jack driver.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>

4 files changed, 121 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 759dfc9..430f2fd 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -181,6 +181,7 @@ obj-$(CONFIG_MACH_OMAP_APOLLON)		+= board-apollon.o
 obj-$(CONFIG_MACH_OMAP3_BEAGLE)		+= board-omap3beagle.o \
 					   hsmmc.o
 obj-$(CONFIG_MACH_GTA04) 		+= board-omap3gta04.o \
+					   board-omap3gta04-jack.o \
 					   hsmmc.o
 obj-$(CONFIG_MACH_DEVKIT8000)     	+= board-devkit8000.o \
                                            hsmmc.o
diff --git a/arch/arm/mach-omap2/board-omap3gta04-jack.c b/arch/arm/mach-omap2/board-omap3gta04-jack.c
new file mode 100644
index 0000000..da27b5b
--- /dev/null
+++ b/arch/arm/mach-omap2/board-omap3gta04-jack.c
@@ -0,0 +1,111 @@
+/* Board support file for Samsung Tuna Board.
+ *
+ * Copyright (C) 2011 Google, Inc.
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * Based on mach-omap2/board-omap4panda.c
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/i2c/twl4030-madc.h>
+#include <linux/sec_jack.h>
+
+#include "board-omap3gta04-jack.h"
+//#include "mux.h"
+
+#define ADC_CHANNEL_JACK	7
+
+static struct sec_jack_zone sec_jack_zones[] = {
+	{
+		/* adc < 100, unstable zone, default to 3pole if it stays
+		* in this range for a half second (20ms delays, 100 samples)
+		*/
+		.adc_high = 100,
+		.delay_ms = 20,
+		.check_count = 100,
+		.jack_type = SEC_HEADSET_3POLE,
+	},
+	{
+		/* 100 < adc <= 820, unstable zone, default to 3pole if it stays
+		* in this range for a second (20ms delays, 100 samples)
+		*/
+		.adc_high = 820,
+		.delay_ms = 20,
+		.check_count = 100,
+		.jack_type = SEC_HEADSET_3POLE,
+	},
+	{
+		/*  adc >= 820, unstable zone, default to 4pole if it
+		* stays in this range for a second (10ms delays, 100 samples)
+		*/
+		.adc_high = 0x7fffffff,
+		.delay_ms = 20,
+		.check_count = 100,
+		.jack_type = SEC_HEADSET_4POLE,
+	},
+};
+
+/* To support 3-buttons earjack */
+static struct sec_jack_buttons_zone sec_jack_buttons_zones[] = {
+	{
+		/* 0 <= adc <= 93, stable zone */
+		.code           = KEY_MEDIA,
+		.adc_low        = 0,
+		.adc_high       = 93,
+	},
+	{
+		/* 94 <= adc <= 167, stable zone */
+		.code           = KEY_PREVIOUSSONG,
+		.adc_low        = 94,
+		.adc_high       = 167,
+	},
+	{
+		/* 168 <= adc <= 370, stable zone */
+		.code           = KEY_NEXTSONG,
+		.adc_low        = 168,
+		.adc_high       = 370,
+	},
+};
+
+static int sec_jack_get_adc_value(void)
+{
+	int value;
+
+	value = twl4030_get_madc_conversion(ADC_CHANNEL_JACK);
+//	return (int)(1800*value) / 1024;
+	return value;
+}
+
+struct sec_jack_platform_data sec_jack_pdata = {
+	.get_adc_value = sec_jack_get_adc_value,
+	.zones = sec_jack_zones,
+	.num_zones = ARRAY_SIZE(sec_jack_zones),
+#if 0 /* TODO */
+	.buttons_zones = sec_jack_buttons_zones,
+	.num_buttons_zones = ARRAY_SIZE(sec_jack_buttons_zones),
+#endif
+};
+
+static struct platform_device sec_device_jack = {
+	.name                   = "sec_jack",
+	.id                     = 1, /* will be used also for gpio_event id */
+	.dev.platform_data      = &sec_jack_pdata,
+};
+
+void __init omap3_gta04_jack_init(void)
+{
+	platform_device_register(&sec_device_jack);
+}
diff --git a/arch/arm/mach-omap2/board-omap3gta04-jack.h b/arch/arm/mach-omap2/board-omap3gta04-jack.h
new file mode 100644
index 0000000..397bd53
--- /dev/null
+++ b/arch/arm/mach-omap2/board-omap3gta04-jack.h
@@ -0,0 +1,6 @@
+#ifndef BOARD_OMAP3_GTA04_JACK_H
+#define BOARD_OMAP3_GTA04_JACK_H
+
+void omap3_gta04_jack_init(void);
+
+#endif
diff --git a/arch/arm/mach-omap2/board-omap3gta04.c b/arch/arm/mach-omap2/board-omap3gta04.c
index aed67b3..fd6e88c 100644
--- a/arch/arm/mach-omap2/board-omap3gta04.c
+++ b/arch/arm/mach-omap2/board-omap3gta04.c
@@ -78,6 +78,7 @@
 #include "pm.h"
 #include "common-board-devices.h"
 #include "control.h"
+#include "board-omap3gta04-jack.h"
 
 #define GPMC_CS0_BASE  0x60
 #define GPMC_CS_SIZE   0x30
@@ -1288,6 +1289,8 @@ static void __init gta04_init(void)
 
 	gta04_opp_init();
 
+	omap3_gta04_jack_init();
+
 	printk("gta04_init done...\n");
 }