io1_xplained.c
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/*
* Copyright (C) 2016 Inria
*
* 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 drivers_io1_xplained
* @{
*
* @file
* @brief Device driver implementation for the Atmel IO1 Xplained extension
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*
* @}
*/
#include "log.h"
#include "io1_xplained.h"
#include "io1_xplained_internals.h"
#include "at30tse75x.h"
#include "periph/i2c.h"
#include "periph/gpio.h"
/*---------------------------------------------------------------------------*
* IO1 Xplained Core API *
*---------------------------------------------------------------------------*/
int io1_xplained_init(io1_xplained_t *dev, const io1_xplained_params_t *params)
{
dev->params = *params;
/* Initialize I2C interface */
if (at30tse75x_init(&dev->temp,
I2C_DEV(0),
I2C_SPEED_NORMAL, (TEMPERATURE_BASE_ADDR | dev->params.addr)) < 0) {
LOG_ERROR("Cannot initialize temperature sensor.\n");
return -IO1_XPLAINED_NOTEMP;
}
/* Use maximum resolution */
at30tse75x_set_resolution(&dev->temp, AT30TSE75X_RESOLUTION_12BIT);
if (gpio_init(IO1_LED_PIN, GPIO_OUT) < 0) {
LOG_ERROR("GPIO LED not enabled\n");
return -IO1_XPLAINED_NOLED;
}
if (gpio_init(IO1_GPIO1_PIN, GPIO_OUT) < 0) {
LOG_ERROR("GPIO1 not enabled\n");
return -IO1_XPLAINED_NOGPIO1;
}
if (gpio_init(IO1_GPIO2_PIN, GPIO_OUT) < 0) {
LOG_ERROR("GPIO2 not enabled\n");
return -IO1_XPLAINED_NOGPIO2;
}
LOG_DEBUG("IO1 Xplained extension initialized!\n");
return IO1_XPLAINED_OK;
}
int io1_xplained_read_temperature(const io1_xplained_t *dev, float *temperature)
{
if (at30tse75x_get_temperature(&dev->temp, temperature) < 0) {
LOG_ERROR("Cannot read temperature sensor.\n");
return -IO1_XPLAINED_READ_ERR;
}
return IO1_XPLAINED_READ_OK;
}
void io1_xplained_set_led(void)
{
gpio_set(IO1_LED_PIN);
}
void io1_xplained_clear_led(void)
{
gpio_clear(IO1_LED_PIN);
}
void io1_xplained_toggle_led(void)
{
gpio_toggle(IO1_LED_PIN);
}