auto_init_gpio.c
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/*
* Copyright (C) 2015 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*
*/
/*
* @ingroup auto_init_saul
* @{
*
* @file
* @brief Auto initialization of GPIO pins directly mapped to SAUL reg
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#ifdef MODULE_SAUL_GPIO
#include "saul_reg.h"
#include "saul/periph.h"
#include "gpio_params.h"
#include "periph/gpio.h"
#define ENABLE_DEBUG (0)
#include "debug.h"
/**
* @brief Define the number of configured sensors
*/
#define SAUL_GPIO_NUMOF (sizeof(saul_gpio_params)/sizeof(saul_gpio_params[0]))
/**
* @brief Allocate memory for the device descriptors
*/
static gpio_t saul_gpios[SAUL_GPIO_NUMOF];
/**
* @brief Memory for the registry entries
*/
static saul_reg_t saul_reg_entries[SAUL_GPIO_NUMOF];
/**
* @brief Reference the driver struct
*/
extern saul_driver_t gpio_saul_driver;
void auto_init_gpio(void)
{
DEBUG("auto init gpio SAUL\n");
for (int i = 0; i < SAUL_GPIO_NUMOF; i++) {
const saul_gpio_params_t *p = &saul_gpio_params[i];
DEBUG("[auto_init_saul] initializing direct GPIO\n");
saul_gpios[i] = p->pin;
saul_reg_entries[i].dev = &(saul_gpios[i]);
saul_reg_entries[i].name = p->name;
saul_reg_entries[i].driver = &gpio_saul_driver;
/* initialize the GPIO pin */
gpio_init(p->pin, p->mode);
/* add to registry */
saul_reg_add(&(saul_reg_entries[i]));
}
}
#else
typedef int dont_be_pedantic;
#endif /* MODULE_SAUL_GPIO */