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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* 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 <stdlib.h>
#include "button.h"
#include "config.h"
#include "sh7034.h"
#include "system.h"
#include "kernel.h"
#include "backlight.h"
#include "adc.h"
#include "lcd.h"
#include "serial.h"
/* Received byte identifiers */
#define PLAY 0xC1
#define STOP 0xC2
#define PREV 0xC4
#define NEXT 0xC8
#define VOLUP 0xD0
#define VOLDN 0xE0
#ifdef SCREENDUMP
#define SCRDMP 0xF0
static void screen_dump(void);
#endif
void serial_setup (void)
{
char dummy;
dummy = SSR1;
SSR1 = 0;
SMR1 = 0x00;
SCR1 = 0;
BRR1 = (FREQ/(32*9600))-1;
/* let the hardware settle */
sleep(1);
SCR1 = 0x50;
/* This enables the serial Rx interrupt*/
IPRE = (IPRE & 0x0FFF) | 0x8000; /* Set to medium priority */
}
static void process_byte(int byte)
{
int btn = 0;
switch (byte)
{
case STOP:
#ifdef HAVE_RECORDER_KEYPAD
btn = BUTTON_OFF;
#else
btn = BUTTON_STOP;
#endif
break;
case PLAY:
btn = BUTTON_PLAY;
break;
case VOLUP:
btn = BUTTON_VOL_UP;
break;
case VOLDN:
btn = BUTTON_VOL_DOWN;
break;
case PREV:
btn = BUTTON_LEFT;
break;
case NEXT:
btn = BUTTON_RIGHT;
break;
#ifdef SCREENDUMP
case SCRDMP:
screen_dump();
break;
#endif
}
if ( btn ) {
queue_post(&button_queue, btn, NULL);
backlight_on();
queue_post(&button_queue, btn | BUTTON_REL, NULL);
}
}
#pragma interrupt
void REI1 (void)
{
SSR1 = SSR1 & ~0x10; /* Clear FER */
SSR1 = SSR1 & ~0x40; /* Clear RDRF */
}
#pragma interrupt
void RXI1 (void)
{
unsigned char serial_byte;
serial_byte = RDR1;
SSR1 = SSR1 & ~0x40; /* Clear RDRF */
process_byte(serial_byte);
}
#ifdef SCREENDUMP
static void serial_enable_tx(void)
{
SCR1 |= 0x20;
}
static void serial_tx(unsigned char ch)
{
while (!(SSR1 & SCI_TDRE))
{
;
}
/*
* Write data into TDR and clear TDRE
*/
TDR1 = ch;
SSR1 &= ~SCI_TDRE;
}
static void screen_dump(void)
{
int x, y;
int level;
serial_enable_tx();
level = set_irq_level(15);
for(y = 0;y < LCD_HEIGHT/8;y++)
{
for(x = 0;x < LCD_WIDTH;x++)
{
serial_tx(lcd_framebuffer[x][y]);
}
}
set_irq_level(level);
}
#endif
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