f608229f32
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29668 a1c6a512-1295-4272-9138-f99709370657
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2008 François Dinel
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* Copyright (C) 2008-2009 Rafaël Carré
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "lcd.h"
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#include "lcd-clip.h"
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#include "system.h"
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#include "cpu.h"
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int lcd_hw_init(void)
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{
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bitset32(&CGU_PERI, CGU_SSP_CLOCK_ENABLE);
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SSP_CPSR = AS3525_SSP_PRESCALER; /* OF = 0x10 */
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SSP_CR0 = (1<<7) | (1<<6) | 7; /* Motorola SPI frame format, 8 bits */
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SSP_CR1 = (1<<3) | (1<<1); /* SSP Operation enabled */
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SSP_IMSC = 0; /* No interrupts */
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/* configure GPIO B2 (display D/C#) as output */
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GPIOB_DIR |= (1<<2);
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/* configure GPIO B3 (display type detect) as input */
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GPIOB_DIR &= ~(1<<3);
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/* set GPIO A5 (display RESET# ?) */
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GPIOA_DIR |= (1<<5);
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GPIOA_PIN(5) = (1<<5);
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/* detect display type on GPIO B3 */
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return GPIOB_PIN(3) ? 1 : 0;
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}
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void lcd_write_command(int byte)
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{
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while(SSP_SR & (1<<4)) /* BSY flag */
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;
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/* LCD command mode */
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GPIOB_PIN(2) = 0;
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SSP_DATA = byte;
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while(SSP_SR & (1<<4)) /* BSY flag */
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;
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}
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void lcd_write_data(const fb_data* p_bytes, int count)
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{
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/* LCD data mode */
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GPIOB_PIN(2) = (1<<2);
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while (count--)
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{
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while(!(SSP_SR & (1<<1))) /* wait until transmit FIFO is not full */
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;
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SSP_DATA = *p_bytes++;
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}
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}
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void lcd_enable_power(bool onoff)
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{
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(void) onoff;
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}
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