67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2008 François Dinel
|
||
|
|
* Copyright (C) 2008-2009 Rafaël Carré
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version 2
|
||
|
|
* of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
* KIND, either express or implied.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
#include "config.h"
|
||
|
|
|
||
|
|
#include "lcd.h"
|
||
|
|
#include "system.h"
|
||
|
|
#include "cpu.h"
|
||
|
|
|
||
|
|
void lcd_hw_init(void)
|
||
|
|
{
|
||
|
|
CGU_PERI |= CGU_SSP_CLOCK_ENABLE;
|
||
|
|
|
||
|
|
SSP_CPSR = AS3525_SSP_PRESCALER; /* OF = 0x10 */
|
||
|
|
SSP_CR0 = (1<<7) | (1<<6) | 7; /* Motorola SPI frame format, 8 bits */
|
||
|
|
SSP_CR1 = (1<<3) | (1<<1); /* SSP Operation enabled */
|
||
|
|
SSP_IMSC = 0; /* No interrupts */
|
||
|
|
|
||
|
|
GPIOA_DIR |= (1<<5);
|
||
|
|
GPIOB_DIR |= (1<<2) | (1<<7);
|
||
|
|
GPIOB_PIN(7) = 0;
|
||
|
|
GPIOA_PIN(5) = (1<<5);
|
||
|
|
}
|
||
|
|
|
||
|
|
void lcd_write_command(int byte)
|
||
|
|
{
|
||
|
|
while(SSP_SR & (1<<4)) /* BSY flag */
|
||
|
|
;
|
||
|
|
|
||
|
|
GPIOB_PIN(2) = 0;
|
||
|
|
SSP_DATA = byte;
|
||
|
|
|
||
|
|
while(SSP_SR & (1<<4)) /* BSY flag */
|
||
|
|
;
|
||
|
|
}
|
||
|
|
|
||
|
|
void lcd_write_data(const fb_data* p_bytes, int count)
|
||
|
|
{
|
||
|
|
GPIOB_PIN(2) = (1<<2);
|
||
|
|
|
||
|
|
while (count--)
|
||
|
|
{
|
||
|
|
while(!(SSP_SR & (1<<1))) /* wait until transmit FIFO is not full */
|
||
|
|
;
|
||
|
|
|
||
|
|
SSP_DATA = *p_bytes++;
|
||
|
|
}
|
||
|
|
}
|