156 lines
4.4 KiB
C
156 lines
4.4 KiB
C
/**
|
|
* \file
|
|
* <!--
|
|
* This file is part of BeRTOS.
|
|
*
|
|
* Bertos 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 program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
* As a special exception, you may use this file as part of a free software
|
|
* library without restriction. Specifically, if other files instantiate
|
|
* templates or use macros or inline functions from this file, or you compile
|
|
* this file and link it with other files to produce an executable, this
|
|
* file does not by itself cause the resulting executable to be covered by
|
|
* the GNU General Public License. This exception does not however
|
|
* invalidate any other reasons why the executable file might be covered by
|
|
* the GNU General Public License.
|
|
*
|
|
* Copyright 2003, 2004, 2005, 2006, 2010 Develer S.r.l. (http://www.develer.com/)
|
|
* Copyright 2001 Bernie Innocenti <bernie@codewiz.org>
|
|
*
|
|
* -->
|
|
*
|
|
* \brief Displaytech 32122A LCD driver
|
|
*
|
|
* \author Bernie Innocenti <bernie@codewiz.org>
|
|
* \author Stefano Fedrigo <aleph@develer.com>
|
|
*
|
|
*/
|
|
|
|
#ifndef HW_LCD_32122A_H
|
|
#define HW_LCD_32122A_H
|
|
|
|
#include <cpu/types.h>
|
|
#include <cpu/irq.h>
|
|
|
|
#warning TODO:This is an example implementation, you must implement it!
|
|
|
|
/**
|
|
* Predefined LCD PWM contrast values
|
|
*/
|
|
#define LCD_DEF_PWM 145
|
|
#define LCD_MAX_PWM 505
|
|
#define LCD_MIN_PWM 130
|
|
#define LCD_PWM_CH 0
|
|
|
|
|
|
/**
|
|
* \name LCD I/O pins/ports
|
|
* @{
|
|
*/
|
|
#define LCD_RS /* Implement me! */
|
|
#define LCD_RW /* Implement me! */
|
|
#define LCD_PE_E1 /* Implement me! */
|
|
#define LCD_PE_E2 /* Implement me! */
|
|
#define LCD_DB0 /* Implement me! */
|
|
#define LCD_DB1 /* Implement me! */
|
|
#define LCD_DB2 /* Implement me! */
|
|
#define LCD_DB3 /* Implement me! */
|
|
#define LCD_DB4 /* Implement me! */
|
|
#define LCD_DB5 /* Implement me! */
|
|
#define LCD_DB6 /* Implement me! */
|
|
#define LCD_DB7 /* Implement me! */
|
|
#define LCD_PF_DB0 /* Implment me! */
|
|
/*@}*/
|
|
|
|
/**
|
|
* \name LCD bus control macros
|
|
* @{
|
|
*/
|
|
#define LCD_CLR_A0 do { /* Implement me! */ } while (0)
|
|
#define LCD_SET_A0 do { /* Implement me! */ } while (0)
|
|
#define LCD_CLR_RD do { /* Implement me! */ } while (0)
|
|
#define LCD_SET_RD do { /* Implement me! */ } while (0)
|
|
#define LCD_CLR_E1 do { /* Implement me! */ } while (0)
|
|
#define LCD_SET_E1 do { /* Implement me! */ } while (0)
|
|
#define LCD_CLR_E2 do { /* Implement me! */ } while (0)
|
|
#define LCD_SET_E2 do { /* Implement me! */ } while (0)
|
|
#define LCD_SET_E(x) do { (void)x; /* Implement me! */ } while (0)
|
|
#define LCD_CLR_E(x) do { (void)x; /* Implement me! */ } while (0)
|
|
/*@}*/
|
|
|
|
/**
|
|
* \name Chip select bits for LCD_SET_E()
|
|
* @{
|
|
*/
|
|
#define LCDF_E1 ( 0/* Implement me! */)
|
|
#define LCDF_E2 ( 0/* Implement me! */)
|
|
/*@}*/
|
|
/** Read from the LCD data bus (DB[0-7]) */
|
|
#define LCD_WRITE(x) ((void)x)/* Implement me! */
|
|
/** Write to the LCD data bus (DB[0-7]) */
|
|
#define LCD_READ (0 /* Implement me! */ )
|
|
|
|
/** Set data bus direction to output (write to display) */
|
|
#define LCD_DB_OUT /* Implement me! */
|
|
|
|
/** Set data bus direction to input (read from display) */
|
|
#define LCD_DB_IN /* Implement me! */
|
|
|
|
/** Delay for write (Enable pulse width, 220ns) */
|
|
#define LCD_DELAY_WRITE \
|
|
do { \
|
|
NOP; \
|
|
NOP; \
|
|
NOP; \
|
|
NOP; \
|
|
NOP; \
|
|
} while (0)
|
|
|
|
/** Delay for read (Data ouput delay time, 120ns) */
|
|
#define LCD_DELAY_READ \
|
|
do { \
|
|
NOP; \
|
|
NOP; \
|
|
NOP; \
|
|
NOP; \
|
|
} while (0)
|
|
|
|
|
|
#define LCD_32122_RESET() do { /* Implement me! */ } while (0)
|
|
|
|
INLINE void lcd_32122a_hw_bus_init(void)
|
|
{
|
|
cpu_flags_t flags;
|
|
IRQ_SAVE_DISABLE(flags);
|
|
|
|
/*
|
|
* Here set bus pin!
|
|
* to init a lcd device.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Data bus is in output state most of the time:
|
|
* LCD r/w functions assume it is left in output state
|
|
*/
|
|
LCD_DB_OUT;
|
|
|
|
|
|
IRQ_RESTORE(flags);
|
|
}
|
|
|
|
#endif /* HW_LCD_32122A_H */
|
|
|