131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/****************************************************************************
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* configs/ne64badge/src/up_buttons.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <arch/board/board.h>
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#include "ne64badge_internal.h"
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#ifdef CONFIG_ARCH_BUTTONS
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Enables debug output from this file (needs CONFIG_DEBUG with
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* CONFIG_DEBUG_VERBOSE too)
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*/
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#undef BUTTON_DEBUG /* Define to enable debug */
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#undef BUTTON_VERBOSE /* Define to enable verbose debug */
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#ifdef BUTTON_DEBUG
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# define btndbg lldbg
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# ifdef BUTTON_VERBOSE
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# define btnvdbg lldbg
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# else
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# define btnvdbg(x...)
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# endif
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#else
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# undef BUTTON_VERBOSE
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# define btndbg(x...)
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# define btnvdbg(x...)
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#endif
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/* Dump GPIO registers */
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#ifdef BUTTON_VERBOSE
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# define btn_dumpgpio(m) m9s12_dumpgpio(m)
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#else
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# define btn_dumpgpio(m)
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_buttoninit
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****************************************************************************/
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void up_buttoninit(void)
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{
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/* Configure all button GPIO lines */
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btn_dumpgpio("up_buttoninit() Entry)");
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hcs12_configgpio(NE64BADGE_BUTTON1);
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hcs12_configgpio(NE64BADGE_BUTTON2);
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btn_dumpgpio("up_buttoninit() Exit");
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}
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/****************************************************************************
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* Name: up_buttons
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****************************************************************************/
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uint8_t up_buttons(void)
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{
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uint8_t ret = 0;
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if (hcs12_gpioread(NE64BADGE_BUTTON1))
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{
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ret |= BUTTON1;
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}
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if (hcs12_gpioread(NE64BADGE_BUTTON2))
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{
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ret |= BUTTON2;
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}
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return ret;
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}
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#endif /* CONFIG_ARCH_BUTTONS */
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