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config/sim: Add logic to set the simulated I/O expander for testing with apps/examples/gpio

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This commit is contained in:
Gregory Nutt 2016-08-03 12:45:16 -06:00
parent c11473657c
commit e9b604914c
3 changed files with 96 additions and 2 deletions
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5
configs/sim/src/Makefile
View File

@ -65,7 +65,12 @@ endif
endif
ifeq ($(CONFIG_EXAMPLES_GPIO),y)
ifeq ($(CONFIG_GPIO_LOWER_HALF),y)
CSRCS += sim_ioexpander.c
else
CSRCS += sim_gpio.c
endif
endif
include $(TOPDIR)/configs/Board.mk

4
configs/sim/src/sim_gpio.c
View File

@ -49,7 +49,7 @@
#include "sim.h"
#ifdef CONFIG_EXAMPLES_GPIO
#if defined(CONFIG_EXAMPLES_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF)
/****************************************************************************
* Private Types
@ -231,4 +231,4 @@ int sim_gpio_initialize(void)
(void)gpio_pin_register(&g_gpint.simgpio.gpio, 2);
return 0;
}
#endif /* CONFIG_EXAMPLES_GPIO */
#endif /* CONFIG_EXAMPLES_GPIO && !CONFIG_GPIO_LOWER_HALF */

89
configs/sim/src/sim_ioexpander.c Normal file
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@ -0,0 +1,89 @@
/****************************************************************************
* configs/sim/src/sim_ioexpander.c
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <errno.h>
#include <debug.h>
#include <nuttx/ioexpander/gpio.h>
#include <nuttx/ioexpander/ioexpander.h>
#include "up_internal.h"
#include "sim.h"
#if defined(CONFIG_EXAMPLES_GPIO) && defined(CONFIG_GPIO_LOWER_HALF)
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: sim_gpio_initialize
*
* Description:
* Initialize simulated GPIO expander for use with /apps/examples/gpio
*
****************************************************************************/
int sim_gpio_initialize(void)
{
/* Get an instance of the simulated I/O expander */
FAR struct ioexpander_dev_s *ioe = sim_ioexpander_initialize();
if (ioe == NULL)
{
gpioerr("ERROR: sim_ioexpander_initialize failed\n");
return -ENOMEM;
}
/* Register three pin drivers */
(void)IOEXP_SETDIRECTION(ioe, 0, IOEXPANDER_DIRECTION_IN);
(void)gpio_lower_half(ioe, 0, GPIO_INPUT_PIN, 0);
(void)IOEXP_SETDIRECTION(ioe, 1, IOEXPANDER_DIRECTION_OUT);
(void)gpio_lower_half(ioe, 1, GPIO_OUTPUT_PIN, 1);
(void)IOEXP_SETDIRECTION(ioe, 2, IOEXPANDER_DIRECTION_IN);
(void)gpio_lower_half(ioe, 2, GPIO_INTERRUPT_PIN, 2);
return 0;
}
#endif /* CONFIG_EXAMPLES_GPIO && CONFIG_GPIO_LOWER_HALF */