* invalidate any other reasons why the executable file might be covered by
* the GNU General Public License.
*
- * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
- * Copyright 2001 Bernardo Innocenti <bernie@codewiz.org>
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
*
* -->
*
- * \version $Id$
+ * \brief Atmel SAM3N-EK testcase
*
- * \author Bernardo Innocenti <bernie@develer.com>
- * \author Stefano Fedrigo <aleph@develer.com>
- *
- * \brief LCD low-level hardware macros
+ * \author Luca Ottaviano <lottaviano@develer.com>
+ * \author Daniele Basile <asterix@develer.com>
*/
#ifndef HW_LCD_H
#define HW_LCD_H
-#include <appconfig.h>
-//#include <hw.h>
+#warning FIXME: This is an example implementation, you must implement it
+
+#include <io/cm3.h>
#include <cpu/attr.h>
-#include <cpu/irq.h>
#include <cpu/types.h>
-#include <cfg/macros.h> /* BV() */
-#include <cfg/debug.h>
-
-#include <avr/io.h>
-#include <stdbool.h>
-#include <inttypes.h>
+#define LCD_BACKLIGHT_MAX // Max backlight level
+#define LCD_BACKLIGHT_PIN // Port C
+#define LCD_SPICLOCK // Minimum cycle len = 80 ns according specs
-/**
- * \name LCD I/O pins/ports
- * @{
- */
-#define LCD_RS BV(PG3)
-#define LCD_RW BV(PG0)
-#define LCD_E BV(PG2)
-#define LCD_DB0 BV(PA0)
-#define LCD_DB1 BV(PA1)
-#define LCD_DB2 BV(PA2)
-#define LCD_DB3 BV(PA3)
-#define LCD_DB4 BV(PA4)
-#define LCD_DB5 BV(PA5)
-#define LCD_DB6 BV(PA6)
-#define LCD_DB7 BV(PA7)
-/*@}*/
-/**
- * \name DB high nibble (DB[4-7])
- * @{
- */
-#define LCD_PORT PORTG
-#define LCD_DB_PORT PORTA
-#define LCD_PIN PING
-#define LCD_DB_PIN PINA
-#define LCD_DDR DDRG
-#define LCD_DB_DDR DDRA
-
-#if CONFIG_LCD_4BIT
- #define LCD_MASK (LCD_DB7 | LCD_DB6 | LCD_DB5 | LCD_DB4)
- #define LCD_SHIFT 4
-#else
- #define LCD_MASK (uint8_t)0xff
- #define LCD_SHIFT 0
-#endif
-/*@}*/
-
-/**
- * \name LCD bus control macros
- * @{
- */
-#define LCD_CLR_RS (LCD_PORT &= ~LCD_RS)
-#define LCD_SET_RS (LCD_PORT |= LCD_RS)
-#define LCD_CLR_RD (LCD_PORT &= ~LCD_RW)
-#define LCD_SET_RD (LCD_PORT |= LCD_RW)
-#define LCD_CLR_E (LCD_PORT &= ~LCD_E)
-#define LCD_SET_E (LCD_PORT |= LCD_E)
+#define LCD_BACKLIGHT_LEVEL_UP() do { /* Implement me! */ } while(0)
-#if CONFIG_LCD_4BIT
- #define LCD_WRITE_H(x) (LCD_DB_PORT = (LCD_DB_PORT & ~LCD_MASK) | (((x) >> (4 - LCD_SHIFT)) & LCD_MASK))
- #define LCD_WRITE_L(x) (LCD_DB_PORT = (LCD_DB_PORT & ~LCD_MASK) | (((x) << LCD_SHIFT) & LCD_MASK))
- #define LCD_READ_H ((LCD_DB_PIN & LCD_MASK) >> (4 - LCD_SHIFT))
- #define LCD_READ_L ((LCD_DB_PIN & LCD_MASK) >> LCD_SHIFT)
-#else
- #define LCD_WRITE(x) (LCD_DB_PORT = (x))
- #define LCD_READ (LCD_DB_PIN)
-#endif
-/*@}*/
-/** Set data bus direction to output (write to display) */
-#define LCD_DB_OUT (LCD_DB_DDR |= LCD_MASK)
-
-/** Set data bus direction to input (read from display) */
-#define LCD_DB_IN (LCD_DB_DDR &= ~LCD_MASK)
-
-/** 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)
-
-
-INLINE void lcd_bus_init(void)
+INLINE void lcd_setBacklight(uint8_t level)
{
- cpuflags_t flags;
- IRQ_SAVE_DISABLE(flags);
-
- LCD_PORT = (LCD_PORT & ~(LCD_E | LCD_RW)) | LCD_RS;
- LCD_DDR |= LCD_RS | LCD_RW | LCD_E;
-
- /*
- * 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);
+ (void)level;
+ /* Implement me! */
}
+#define LCD_BACKLIGHT_INIT() do { /* Implement me! */ } while(0)
+
#endif /* HW_LCD_H */
projects / bertos.git / blobdiff