forked from len0rd/rockbox
14c7900383
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6283 a1c6a512-1295-4272-9138-f99709370657
194 lines
4.2 KiB
C
194 lines
4.2 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) 2005 by Richard S. La Charité III
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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 "cpu.h"
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#include "kernel.h"
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#include "thread.h"
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#if CONFIG_CPU == MCF5249
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#define CS_LO GPIO_OUT &= ~0x00000004
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#define CS_HI GPIO_OUT |= 0x00000004
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#define CLK_LO GPIO_OUT &= ~0x10000000
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#define CLK_HI GPIO_OUT |= 0x10000000
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#define DATA_LO GPIO_OUT &= ~0x00040000
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#define DATA_HI GPIO_OUT |= 0x00040000
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#define RS_LO GPIO_OUT &= ~0x00010000
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#define RS_HI GPIO_OUT |= 0x00010000
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/* delay loop */
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#define DELAY do { int _x; for(_x=0;_x<3;_x++);} while (0)
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void lcd_remote_write_command(int cmd)
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{
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int i;
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CS_LO;
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RS_LO;
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for (i = 0; i < 8; i++)
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{
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if (cmd & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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cmd <<= 1;
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DELAY;
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CLK_LO;
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}
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CS_HI;
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}
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void lcd_remote_write_data(const unsigned char* p_bytes, int count)
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{
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int i, j;
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int data;
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CS_LO;
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RS_HI;
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for (i = 0; i < count; i++)
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{
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data = p_bytes[i];
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for (j = 0; j < 8; j++)
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{
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if (data & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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data <<= 1;
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DELAY;
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CLK_LO;
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}
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}
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CS_HI;
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}
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void lcd_remote_write_command_ex(int cmd, int data1, int data2)
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{
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int i;
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CS_LO;
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RS_LO;
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for (i = 0; i < 8; i++)
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{
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if (cmd & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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cmd <<= 1;
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DELAY;
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CLK_LO;
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}
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RS_HI;
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for (i = 0; i < 8; i++)
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{
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if (data1 & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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data1 <<= 1;
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DELAY;
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CLK_LO;
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}
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if (data2 != -1)
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{
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for (i = 0; i < 8; i++)
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{
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if (data2 & 0x80)
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DATA_HI;
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else
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DATA_LO;
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CLK_HI;
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data2 <<= 1;
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DELAY;
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CLK_LO;
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}
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}
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CS_HI;
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}
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#define LCD_REMOTE_ADC_NORMAL 0xa0
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#define LCD_REMOTE_ADC_REVERSE 0xa1
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#define LCD_REMOTE_SHL_NORMAL 0xc0
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#define LCD_REMOTE_SHL_REVERSE 0xc8
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#define LCD_REMOTE_DISPLAY_OFF 0xae
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#define LCD_REMOTE_DISPLAY_ON 0xaf
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#define LCD_REMOTE_REVERSE_OFF 0xa6
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#define LCD_REMOTE_REVERSE_ON 0xa7
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#define LCD_REMOTE_DISPLAY_NORMAL 0xa4
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#define LCD_REMOTE_DISPLAY_ENTIRE 0xa5
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#define LCD_REMOTE_NO_OPERATION 0xe3
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#define LCD_REMOTE_POWER_CONTROL 0x2b
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void lcd_remote_init(void)
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{
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GPIO_FUNCTION |= 0x10010000; /* GPIO16: RS
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GPIO28: CLK */
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GPIO1_FUNCTION |= 0x00040004; /* GPIO34: CS
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GPIO50: Data */
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GPIO_ENABLE |= 0x10010000;
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GPIO1_ENABLE |= 0x00040004;
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CLK_LO;
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CS_HI;
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}
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/*
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lcd_remote_write_command(LCD_REMOTE_ADC_NORMAL);
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lcd_remote_write_command(LCD_REMOTE_SHL_NORMAL);
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lcd_remote_write_command(0xA2); // Bias 0
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lcd_remote_write_command(LCD_REMOTE_POWER_CONTROL | 0x4); // Convertor
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// 1ms
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lcd_remote_write_command(LCD_REMOTE_POWER_CONTROL | 0x2); // Regulator
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// 1ms
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lcd_remote_write_command(LCD_REMOTE_POWER_CONTROL | 0x1); // Follower
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// 1ms
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*/
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#endif
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