175 lines
5.5 KiB
C
175 lines
5.5 KiB
C
/****************************************************************************
|
|
* configs/ez80f910200zco/src/ez80_leds.c
|
|
*
|
|
* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <nuttx/irq.h>
|
|
|
|
#include "chip.h"
|
|
#include "up_arch.h"
|
|
#include "up_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: up_PB/1/2interrupt
|
|
*
|
|
* Description:
|
|
* These could be exteneded to provide interrupt driven button input
|
|
*
|
|
****************************************************************************/
|
|
|
|
#if 0
|
|
void up_PBinterrupt(void)
|
|
{
|
|
uint8_t regval;
|
|
|
|
regval = inp(EZ80_PB_DR); /* Clear interrupt flag for eZ80F91 date codes before 0611 */
|
|
regval |= 7;
|
|
outp(EZ80_PB_DR, regval);
|
|
|
|
regval = inp(EZ80_PB_ALT0); /* Clear interrupt flag for eZ80F91 date codes 0611 and after */
|
|
regval |= 1;
|
|
outp(EZ80_PB_ALT0, regval);
|
|
}
|
|
|
|
void up_pb1interrupt(void)
|
|
{
|
|
uint8_t regval;
|
|
|
|
regval = inp(EZ80_PB_DR); /* Clear interrupt flag for eZ80F91 date codes before 0611 */
|
|
regval |= 7;
|
|
outp(EZ80_PB_DR, regval);
|
|
|
|
regval = inp(EZ80_PB_ALT0); /* Clear interrupt flag for eZ80F91 date codes 0611 and after */
|
|
regval |= 2;
|
|
outp(EZ80_PB_ALT0, regval);
|
|
}
|
|
|
|
void up_pb2interrupt(void)
|
|
{
|
|
uint8_t regval;
|
|
|
|
regval = inp(EZ80_PB_DR); /* Clear interrupt flag for eZ80F91 date codes before 0611 */
|
|
regval |= 7;
|
|
outp(EZ80_PB_DR, regval);
|
|
|
|
regval = inp(EZ80_PB_ALT0);
|
|
regval |= 4;
|
|
outp(EZ80_PB_ALT0, regval); /* Clear interrupt flag for eZ80F91 date codes 0611 and after */
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: up_buttoninit
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_ARCH_BUTTONS
|
|
void up_buttoninit(void)
|
|
{
|
|
uint8_t regval;
|
|
|
|
#if 0 /* Interrupts are not used */
|
|
|
|
/* Attach GIO interrupts */
|
|
|
|
irq_attach(EZ80_PB_IRQ, up_PBinterrupt);
|
|
irq_attach(EZ80_PB1_IRQ, up_pb1interrupt);
|
|
irq_attach(EZ80_PB2_IRQ, up_pb2interrupt);
|
|
|
|
/* Configure PB0,1,2 as interrupt, rising edge */
|
|
|
|
regval = inp(EZ80_PB_DR);
|
|
regval |= 7;
|
|
outp(EZ80_PB_DR, regval);
|
|
|
|
regval = inp(EZ80_PB_DDR);
|
|
regval |= 7;
|
|
outp(EZ80_PB_DDR, regval);
|
|
|
|
regval = inp(EZ80_PB_ALT1);
|
|
regval |= 7;
|
|
outp(EZ80_PB_ALT1, regval);
|
|
|
|
regval = inp(EZ80_PB_ALT2);
|
|
regval |= 7;
|
|
outp(EZ80_PB_ALT2, regval);
|
|
#else
|
|
/* Configure PB0,1,2 as inputs */
|
|
|
|
regval = inp(EZ80_PB_DDR);
|
|
regval |= 7;
|
|
outp(EZ80_PB_DDR, regval);
|
|
|
|
regval = inp(EZ80_PB_ALT1);
|
|
regval &= ~7;
|
|
outp(EZ80_PB_ALT1, regval);
|
|
|
|
regval = inp(EZ80_PB_ALT2);
|
|
regval &= ~7;
|
|
outp(EZ80_PB_ALT2, regval);
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: up_buttons
|
|
****************************************************************************/
|
|
|
|
uint8_t up_buttons(void)
|
|
{
|
|
return inp(EZ80_PB_DDR) & 7;
|
|
}
|
|
#endif /* CONFIG_ARCH_BUTTONS */
|