Add hw file for lcd 32122 module.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@3721 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/bertos/hw/hw_lcd_32122a.h b/bertos/hw/hw_lcd_32122a.h
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+++ b/bertos/hw/hw_lcd_32122a.h
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+/**
+ * \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 */
+