/* ASB2303 peripheral 7-segment LEDs x1 support
   *
   * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   * Written by David Howells (dhowells@redhat.com)
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public Licence
   * as published by the Free Software Foundation; either version
   * 2 of the Licence, or (at your option) any later version.
   */
  #include <linux/kernel.h>
  #include <linux/param.h>
  #include <linux/init.h>
  
  #include <asm/io.h>
  #include <asm/processor.h>
  #include <asm/intctl-regs.h>
  #include <asm/rtc-regs.h>

  #include <unit/leds.h>

  
  #if 0
  static const u8 asb2303_led_hex_tbl[16] = {
  	0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0,
  	0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c
  };
  #endif
  
  static const u8 asb2303_led_chase_tbl[6] = {
  	~0x02,	/* top		- segA */
  	~0x04,	/* right top	- segB */
  	~0x08,	/* right bottom	- segC */
  	~0x10,	/* bottom	- segD */
  	~0x20,	/* left bottom	- segE */
  	~0x40,	/* left top	- segF */
  };
  
  static unsigned asb2303_led_chase;
  
  void peripheral_leds_display_exception(enum exception_code code)
  {
  	ASB2303_GPIO0DEF = 0x5555;	/* configure as an output port */
  	ASB2303_7SEGLEDS = 0x6d;	/* triple horizontal bar */
  }
  
  void peripheral_leds_led_chase(void)
  {
  	ASB2303_GPIO0DEF = 0x5555;	/* configure as an output port */
  	ASB2303_7SEGLEDS = asb2303_led_chase_tbl[asb2303_led_chase];
  	asb2303_led_chase++;
  	if (asb2303_led_chase >= 6)
  		asb2303_led_chase = 0;
  }