/*************************************************************************** * __________ __ ___. * 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 "lcd-clip.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++; } }