/*

   * Support for Compaq iPAQ H3600 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 h3600_lcd_power(int enable)
  {

  	if (gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power")) {
  		pr_err("%s: can't request H3XXX_EGPIO_LCD_ON
  ", __func__);

  		goto err1;

  	}
  	if (gpio_request(H3600_EGPIO_LCD_PCI, "LCD control")) {
  		pr_err("%s: can't request H3XXX_EGPIO_LCD_PCI
  ", __func__);

  		goto err2;

  	}
  	if (gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v")) {
  		pr_err("%s: can't request H3XXX_EGPIO_LCD_5V_ON
  ", __func__);

  		goto err3;

  	}
  	if (gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v")) {
  		pr_err("%s: can't request H3600_EGPIO_LVDD_ON
  ", __func__);

  		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")

  	.atag_offset	= 0x100,

  	.map_io		= h3600_map_io,
  	.init_irq	= sa1100_init_irq,

  	.timer		= &sa1100_timer,

  	.init_machine	= h3600_mach_init,

  	.restart	= sa11x0_restart,

  MACHINE_END