86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
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/***************************************************************************
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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 "system.h"
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#include "cpu.h"
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void lcd_hw_init(void)
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{
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/* DBOP initialisation, do what OF does */
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CCU_IO |= (1<<12); /* ?? */
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CGU_DBOP |= /*(1<<3)*/ 0x18 | AS3525_DBOP_DIV;
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DBOP_CTRL = 0x51004;
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DBOP_TIMPOL_01 = 0x36A12F;
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DBOP_TIMPOL_23 = 0xE037E037;
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GPIOB_DIR |= (1<<2)|(1<<5);
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GPIOB_PIN(5) = (1<<5);
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}
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#define LCD_DELAY 10
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void lcd_write_command(int byte)
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{
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volatile int i = 0;
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while(i<LCD_DELAY) i++;
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/* unset D/C# (data or command) */
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GPIOB_PIN(2) = 0;
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DBOP_TIMPOL_23 = 0xE0370036;
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/* Write command */
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/* Only bits 15:12 and 3:0 of DBOP_DOUT are meaningful */
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DBOP_DOUT = (byte << 8) | byte;
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/* While push fifo is not empty */
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while ((DBOP_STAT & (1<<10)) == 0)
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;
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DBOP_TIMPOL_23 = 0xE037E037;
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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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volatile int i = 0;
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while(i<LCD_DELAY) i++;
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/* set D/C# (data or command) */
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GPIOB_PIN(2) = (1<<2);
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while (count--)
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{
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/* Write pixels */
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/* Only bits 15:12 and 3:0 of DBOP_DOUT are meaningful */
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DBOP_DOUT = (*p_bytes << 8) | *p_bytes;
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p_bytes++; /* next packed pixels */
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/* Wait if push fifo is full */
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while ((DBOP_STAT & (1<<6)) != 0);
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}
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/* While push fifo is not empty */
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while ((DBOP_STAT & (1<<10)) == 0);
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}
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