Logo Search packages:      
Sourcecode: linux version File versions  Download package

h3100.c

/*
 * Support for Compaq iPAQ H3100 handheld computer
 *
 * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
 * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
 *
 * 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/init.h>
#include <linux/kernel.h>
#include <linux/gpio.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/irda.h>

#include <mach/h3xxx.h>

#include "generic.h"

/*
 * helper for sa1100fb
 */
static void h3100_lcd_power(int enable)
{
      if (!gpio_request(H3XXX_EGPIO_LCD_ON, "LCD ON")) {
            gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
            gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
            gpio_free(H3XXX_EGPIO_LCD_ON);
      } else {
            pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__);
      }
}


static void __init h3100_map_io(void)
{
      h3xxx_map_io();

      sa1100fb_lcd_power = h3100_lcd_power;

      /* Older bootldrs put GPIO2-9 in alternate mode on the
         assumption that they are used for video */
      GAFR &= ~0x000001fb;
}

/*
 * This turns the IRDA power on or off on the Compaq H3100
 */
static int h3100_irda_set_power(struct device *dev, unsigned int state)
{
      gpio_set_value(H3100_GPIO_IR_ON, state);
      return 0;
}

static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
{
      gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
}

static struct irda_platform_data h3100_irda_data = {
      .set_power  = h3100_irda_set_power,
      .set_speed  = h3100_irda_set_speed,
};

static struct gpio_default_state h3100_default_gpio[] = {
      { H3100_GPIO_IR_ON,     GPIO_MODE_OUT0, "IrDA power" },
      { H3100_GPIO_IR_FSEL,   GPIO_MODE_OUT0, "IrDA fsel" },
      { 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" },
      { H3100_GPIO_LCD_3V_ON, GPIO_MODE_OUT0,   "LCD 3v" },
};

static void __init h3100_mach_init(void)
{
      h3xxx_init_gpio(h3100_default_gpio, ARRAY_SIZE(h3100_default_gpio));
      h3xxx_mach_init();
      sa11x0_register_irda(&h3100_irda_data);
}

MACHINE_START(H3100, "Compaq iPAQ H3100")
      .boot_params      = 0xc0000100,
      .map_io           = h3100_map_io,
      .init_irq   = sa1100_init_irq,
      .timer            = &sa1100_timer,
      .init_machine     = h3100_mach_init,
MACHINE_END


Generated by  Doxygen 1.6.0   Back to index