/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id: serial.c,v 1.2 2002/06/07 13:09:44 linusnielsen Exp $
 *
 * Copyright (C) 2002 by Alan Korr & Nick Robinson
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/


#include "button.h"
#include <stdlib.h>
#include "config.h"
#include "sh7034.h"
#include "system.h"
#include "kernel.h"
#include "backlight.h"
#include "adc.h"
#include "lcd.h"
#include "serial_remote.h"


// Recieved byte identiers
#define STOP  0xC2
#define PLAY  0xC1
#define VOLU  0xD0
#define PREV  0xC4
#define VOLD  0xE0
#define NEXT  0xC8

void remote_serial_setup (void) 
{ 
	    
	char dummy;
	int i;
	int j;
	dummy = SSR1;
	SSR1=0;
	SMR1 = 0x00;
	SCR1=0;
	BRR1 = (FREQ/(32*9600))-1;
	//sleep(FREQ/10);
	
	/* let the hardware settle */
	 for (i = 0; i < 1000; i++)
        	j++;

	SCR1 = 0x50;

	/* This enables the serial Rx interrupt*/
	IPRE = (IPRE & 0x0FFF) | 0x8000; /* Set to medium priority */

}

void  process_remote_byte(char byte)
{
  static char last_byte;
  if (last_byte==byte)
    {
      // need to wait a while?
      // dont know how yet!
    }

  switch (byte)
  {
  case STOP:
    #ifdef HAVE_RECORDER_KEYPAD
    queue_post(&button_queue, BUTTON_OFF,NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_OFF, NULL);
    #else
    queue_post(&button_queue, BUTTON_ON, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_ON, NULL);
    #endif
    break;

  case PLAY:
    #ifdef HAVE_RECORDER_KEYPAD
    queue_post(&button_queue, BUTTON_PLAY, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_PLAY, NULL);
    #else
    queue_post(&button_queue, BUTTON_RIGHT, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_RIGHT, NULL);
    #endif    
    break;

  case VOLU:
    #ifdef HAVE_RECORDER_KEYPAD
    queue_post(&button_queue, BUTTON_UP, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_UP, NULL);
    #else
    queue_post(&button_queue, BUTTON_UP, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_UP, NULL);
    #endif      
    break;

  case PREV:
    #ifdef HAVE_RECORDER_KEYPAD
    queue_post(&button_queue, BUTTON_LEFT, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_LEFT, NULL);
    #else
    queue_post(&button_queue, BUTTON_LEFT, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_LEFT, NULL);
    #endif 
   break;

  case VOLD:
    #ifdef HAVE_RECORDER_KEYPAD
    queue_post(&button_queue, BUTTON_DOWN, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_DOWN, NULL);
    #else
    queue_post(&button_queue, BUTTON_DOWN, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_DOWN, NULL);
    #endif    
    break;


  case NEXT:
    #ifdef HAVE_RECORDER_KEYPAD
    queue_post(&button_queue, BUTTON_RIGHT, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_RIGHT, NULL);
    #else
    queue_post(&button_queue, BUTTON_RIGHT, NULL);
    backlight_on();
    queue_post(&button_queue, BUTTON_REL | BUTTON_RIGHT, NULL);
    #endif   
    break;
  }
}

#pragma interrupt
void REI1 (void)
{

//debug:
//    char got_int[15]="got error!";      //recieve error handler
//    lcd_clear_display();
//    lcd_backlight(1);
//    lcd_puts(10, 10,got_int);

    SSR1 = SSR1 & ~0x10; /* Clear FER */
    SSR1 = SSR1 & ~0x40; /* Clear RDRF */

}

#pragma interrupt
void RXI1 (void)
{
//char got_int[15]="got interupt";  

//A byte has been recieved...
    char serial_byte;
    serial_byte = RDR1;
    SSR1 = SSR1 & ~0x40; /* Clear RDRF */
    process_remote_byte(serial_byte);

 //  lcd_clear_display();
 //  lcd_backlight(1);
 //  lcd_puts(10, 10,got_int);
}