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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 <math.h>
#include "log.h"
#include "io1_xplained.h"
#include "io1_xplained_internals.h"
#include "io1_xplained_params.h"
#include "at30tse75x.h"
#include "periph/i2c.h"
#include "periph/gpio.h"
#include "xtimer.h"
#define ENABLE_DEBUG (0)
#include "debug.h"
/**
* @brief Allocation of memory for device descriptors
*/
io1_xplained_t io1_xplained_devs[IO1_XPLAINED_NUMOF];
/*---------------------------------------------------------------------------*
* IO1 Xplained Core API *
*---------------------------------------------------------------------------*/
int io1_xplained_init(io1_xplained_t *dev, uint8_t addr)
{
/* Initialize I2C interface */
if (at30tse75x_init(&dev->temp,
I2C_DEV(0),
I2C_SPEED_NORMAL, (TEMPERATURE_BASE_ADDR | addr)) < 0) {
DEBUG("[Error] Cannot initialize temperature sensor.\n");
return -1;
}
/* Use maximum resolution */
at30tse75x_set_resolution(&dev->temp, AT30TSE75X_RESOLUTION_12BIT);
if (gpio_init(IO1_LED_PIN, GPIO_OUT) < 0) {
DEBUG("[Error] GPIO LED not enabled\n");
return -1;
}
if (gpio_init(IO1_GPIO1_PIN, GPIO_OUT) < 0) {
DEBUG("[Error] GPIO1 not enabled\n");
return -1;
}
if (gpio_init(IO1_GPIO2_PIN, GPIO_OUT) < 0) {
DEBUG("[Error] GPIO2 not enabled\n");
return -1;
}
DEBUG("[Info] IO1 Xplained extension initialized!\n");
return 0;
}
void io1_xplained_auto_init(void)
{
for (unsigned i = 0; i < IO1_XPLAINED_NUMOF; i++) {
if (io1_xplained_init(&io1_xplained_devs[i],
io1_xplained_params[i].addr) < 0) {
LOG_ERROR("Unable to initialize IO1 Xplained #%i\n", i);
}
#ifdef MODULE_SAUL_REG
io1_xplained_saul_reg[i][0].dev = &io1_xplained_devs[i];
saul_reg_add(&io1_xplained_saul_reg[i][0]);
#endif
#ifdef MODULE_SAUL_GPIO
for (unsigned j = 1; j < 4; j++) {
io1_xplained_saul_reg[i][j].dev = &(io1_xplained_saul_gpios[j-1]);
saul_reg_add(&(io1_xplained_saul_reg[i][j]));
}
#endif
}
}
int io1_xplained_read_temperature(io1_xplained_t *dev, float *temperature)
{
if (at30tse75x_get_temperature(&dev->temp, temperature) < 0) {
DEBUG("[Error] Cannot read IO1 Xplained temperatuse sensor.\n");
return -1;
}
return 0;
}
int io1_xplained_set_led(void)
{
gpio_set(IO1_LED_PIN);
return 0;
}
int io1_xplained_clear_led(void)
{
gpio_clear(IO1_LED_PIN);
return 0;
}
int io1_xplained_toggle_led(void)
{
gpio_toggle(IO1_LED_PIN);
return 0;
}
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