geos: Platform driver for Geos and Geos2 single-board computers.

	  Note: You have to set alix.force=1 for boards with Award BIOS.

config GEOS

	bool "Traverse Technologies GEOS System Support (LEDS, GPIO, etc)"

	select GPIOLIB

	depends on DMI

	---help---

	  This option enables system support for the Traverse Technologies GEOS.

endif # X86_32

config AMD_NB

obj-$(CONFIG_ALIX)		+= alix.o

obj-$(CONFIG_GEOS)		+= geos.o

/*

 * System Specific setup for Traverse Technologies GEOS.

 * At the moment this means setup of GPIO control of LEDs.

 *

 * Copyright (C) 2008 Constantin Baranov <const@mimas.ru>

 * Copyright (C) 2011 Ed Wildgoose <kernel@wildgooses.com>

 *                and Philip Prindeville <philipp@redfish-solutions.com>

 *

 * TODO: There are large similarities with leds-net5501.c

 * by Alessandro Zummo <a.zummo@towertech.it>

 * In the future leds-net5501.c should be migrated over to platform

 *

 * 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.

 */

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/io.h>

#include <linux/string.h>

#include <linux/module.h>

#include <linux/leds.h>

#include <linux/platform_device.h>

#include <linux/gpio.h>

#include <linux/input.h>

#include <linux/gpio_keys.h>

#include <linux/dmi.h>

#include <asm/geode.h>

static struct gpio_keys_button geos_gpio_buttons[] = {

	{

		.code = KEY_RESTART,

		.gpio = 3,

		.active_low = 1,

		.desc = "Reset button",

		.type = EV_KEY,

		.wakeup = 0,

		.debounce_interval = 100,

		.can_disable = 0,

	}

};

static struct gpio_keys_platform_data geos_buttons_data = {

	.buttons = geos_gpio_buttons,

	.nbuttons = ARRAY_SIZE(geos_gpio_buttons),

	.poll_interval = 20,

};

static struct platform_device geos_buttons_dev = {

	.name = "gpio-keys-polled",

	.id = 1,

	.dev = {

		.platform_data = &geos_buttons_data,

	}

};

static struct gpio_led geos_leds[] = {

	{

		.name = "geos:1",

		.gpio = 6,

		.default_trigger = "default-on",

		.active_low = 1,

	},

	{

		.name = "geos:2",

		.gpio = 25,

		.default_trigger = "default-off",

		.active_low = 1,

	},

	{

		.name = "geos:3",

		.gpio = 27,

		.default_trigger = "default-off",

		.active_low = 1,

	},

};

static struct gpio_led_platform_data geos_leds_data = {

	.num_leds = ARRAY_SIZE(geos_leds),

	.leds = geos_leds,

};

static struct platform_device geos_leds_dev = {

	.name = "leds-gpio",

	.id = -1,

	.dev.platform_data = &geos_leds_data,

};

static struct __initdata platform_device *geos_devs[] = {

	&geos_buttons_dev,

	&geos_leds_dev,

};

static void __init register_geos(void)

{

	/* Setup LED control through leds-gpio driver */

	platform_add_devices(geos_devs, ARRAY_SIZE(geos_devs));

}

static int __init geos_init(void)

{

	const char *vendor, *product;

	if (!is_geode())

		return 0;

	vendor = dmi_get_system_info(DMI_SYS_VENDOR);

	if (!vendor || strcmp(vendor, "Traverse Technologies"))

		return 0;

	product = dmi_get_system_info(DMI_PRODUCT_NAME);

	if (!product || strcmp(product, "Geos"))

		return 0;

	printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n",

	       KBUILD_MODNAME, vendor, product);

	register_geos();

	return 0;

}

module_init(geos_init);

MODULE_AUTHOR("Philip Prindeville <philipp@redfish-solutions.com>");

MODULE_DESCRIPTION("Traverse Technologies Geos System Setup");

MODULE_LICENSE("GPL");