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Add button support

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1433 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2008-12-08 16:58:18 +00:00
parent 922ecbf5aa
commit 2b8ff49fe0
1 changed files with 182 additions and 0 deletions
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182
configs/ez80f910200zco/src/ez80_buttons.c Executable file
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/****************************************************************************
* configs/olimex-strp711/src/up_leds.c
*
* Copyright (C) 2008 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 <sys/types.h>
#include <nuttx/irq.h>
#include "chip.h"
#include "up_arch.h"
#include "up_internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* The Olimex board has two buttons, one labled "BUT" and the other "WAKEUP"
*
* P0.15: WAKEUP button
* P1.13: BUT button
*/
#define STR71X_BUTBUTTON_GPIO1 (0x2000)
#define STR71X_WAKEUPBUTTON_GPIO0 (0x8000)
/****************************************************************************
* 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)
{
ubyte 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)
{
ubyte 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)
{
ubyte 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)
{
ubyte 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
****************************************************************************/
ubyte up_buttons(void)
{
return inp(EZ80_PB_DDR) & 7;
}
#endif /* CONFIG_ARCH_BUTTONS */