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/*
* Hardware definitions for Compaq iPAQ H3xxx Handheld Computers
*
* Copyright 2000,1 Compaq Computer Corporation.
*
* Use consistent with the GNU GPL is permitted,
* provided that this copyright notice is
* preserved in its entirety in all copies and derived works.
*
* COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
* AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
* FITNESS FOR ANY PARTICULAR PURPOSE.
*
* Author: Jamey Hicks.
*
* History:
*
* 2001-10-?? Andrew Christian Added support for iPAQ H3800
* and abstracted EGPIO interface.
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/pm.h>
#include <linux/device.h>
#include <linux/mfd/htc-egpio.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/serial_core.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/setup.h>
#include <asm/mach/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/irda.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>
#include <mach/h3xxx.h>
#include "generic.h"
/*
* helper for sa1100fb
*/
static void h3600_lcd_power(int enable)
{
if (gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power"))
goto err1;
if (gpio_request(H3600_EGPIO_LCD_PCI, "LCD control"))
goto err2;
if (gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v"))
goto err3;
if (gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v"))
goto err4;
gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
gpio_free(H3600_EGPIO_LVDD_ON);
err4: gpio_free(H3600_EGPIO_LCD_5V_ON);
err3: gpio_free(H3600_EGPIO_LCD_PCI);
err2: gpio_free(H3XXX_EGPIO_LCD_ON);
err1: return;
}
static void __init h3600_map_io(void)
{
h3xxx_map_io();
sa1100fb_lcd_power = h3600_lcd_power;
}
/*
* This turns the IRDA power on or off on the Compaq H3600
*/
static int h3600_irda_set_power(struct device *dev, unsigned int state)
{
gpio_set_value(H3600_EGPIO_IR_ON, state);
return 0;
}
static void h3600_irda_set_speed(struct device *dev, unsigned int speed)
{
gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000));
}
static int h3600_irda_startup(struct device *dev)
{
int err = gpio_request(H3600_EGPIO_IR_ON, "IrDA power");
if (err)
goto err1;
err = gpio_direction_output(H3600_EGPIO_IR_ON, 0);
if (err)
goto err2;
err = gpio_request(H3600_EGPIO_IR_FSEL, "IrDA fsel");
if (err)
goto err2;
err = gpio_direction_output(H3600_EGPIO_IR_FSEL, 0);
if (err)
goto err3;
return 0;
err3: gpio_free(H3600_EGPIO_IR_FSEL);
err2: gpio_free(H3600_EGPIO_IR_ON);
err1: return err;
}
static void h3600_irda_shutdown(struct device *dev)
{
gpio_free(H3600_EGPIO_IR_ON);
gpio_free(H3600_EGPIO_IR_FSEL);
}
static struct irda_platform_data h3600_irda_data = {
.set_power = h3600_irda_set_power,
.set_speed = h3600_irda_set_speed,
.startup = h3600_irda_startup,
.shutdown = h3600_irda_shutdown,
};
static struct gpio_default_state h3600_default_gpio[] = {
{ H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
{ H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
{ H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
};
static void __init h3600_mach_init(void)
{
h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio));
h3xxx_mach_init();
sa11x0_register_irda(&h3600_irda_data);
}
MACHINE_START(H3600, "Compaq iPAQ H3600")
.phys_io = 0x80000000,
.io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
.boot_params = 0xc0000100,
.map_io = h3600_map_io,
.init_irq = sa1100_init_irq,
.timer = &sa1100_timer,
.init_machine = h3600_mach_init,
MACHINE_END
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