static int _init(netdev2_t *netdev)
{
at86rf2xx_t *dev = (at86rf2xx_t *)netdev;
/* initialise GPIOs */
gpio_init(dev->params.cs_pin, GPIO_OUT);
gpio_set(dev->params.cs_pin);
gpio_init(dev->params.sleep_pin, GPIO_OUT);
gpio_clear(dev->params.sleep_pin);
gpio_init(dev->params.reset_pin, GPIO_OUT);
gpio_set(dev->params.reset_pin);
gpio_init_int(dev->params.int_pin, GPIO_IN, GPIO_RISING, _irq_handler, dev);
/* make sure device is not sleeping, so we can query part number */
at86rf2xx_assert_awake(dev);
/* test if the SPI is set up correctly and the device is responding */
if (at86rf2xx_reg_read(dev, AT86RF2XX_REG__PART_NUM) !=
AT86RF2XX_PARTNUM) {
DEBUG("[at86rf2xx] error: unable to read correct part number\n");
return -1;
}
#ifdef MODULE_NETSTATS_L2
memset(&netdev->stats, 0, sizeof(netstats_t));
#endif
/* reset device to default values and put it into RX state */
at86rf2xx_reset(dev);
return 0;
}
int at86rf2xx_init(at86rf2xx_t *dev, spi_t spi, spi_speed_t spi_speed,
gpio_t cs_pin, gpio_t int_pin,
gpio_t sleep_pin, gpio_t reset_pin)
{
dev->driver = &at86rf2xx_driver;
/* initialize device descriptor */
dev->spi = spi;
dev->cs_pin = cs_pin;
dev->int_pin = int_pin;
dev->sleep_pin = sleep_pin;
dev->reset_pin = reset_pin;
dev->idle_state = AT86RF2XX_STATE_TRX_OFF;
dev->state = AT86RF2XX_STATE_SLEEP;
/* initialise SPI */
spi_init_master(dev->spi, SPI_CONF_FIRST_RISING, spi_speed);
/* initialise GPIOs */
gpio_init(dev->cs_pin, GPIO_DIR_OUT, GPIO_NOPULL);
gpio_set(dev->cs_pin);
gpio_init(dev->sleep_pin, GPIO_DIR_OUT, GPIO_NOPULL);
gpio_clear(dev->sleep_pin);
gpio_init(dev->reset_pin, GPIO_DIR_OUT, GPIO_NOPULL);
gpio_set(dev->reset_pin);
gpio_init_int(dev->int_pin, GPIO_NOPULL, GPIO_RISING, _irq_handler, dev);
/* make sure device is not sleeping, so we can query part number */
at86rf2xx_assert_awake(dev);
/* test if the SPI is set up correctly and the device is responding */
if (at86rf2xx_reg_read(dev, AT86RF2XX_REG__PART_NUM) !=
AT86RF2XX_PARTNUM) {
DEBUG("[at86rf2xx] error: unable to read correct part number\n");
return -1;
}
/* reset device to default values and put it into RX state */
at86rf2xx_reset(dev);
return 0;
}
static int _set_state(at86rf2xx_t *dev, netopt_state_t state)
{
switch (state) {
case NETOPT_STATE_SLEEP:
at86rf2xx_set_state(dev, AT86RF2XX_STATE_SLEEP);
break;
case NETOPT_STATE_IDLE:
at86rf2xx_set_state(dev, AT86RF2XX_STATE_RX_AACK_ON);
break;
case NETOPT_STATE_TX:
if (dev->netdev.flags & AT86RF2XX_OPT_PRELOADING) {
at86rf2xx_tx_exec(dev);
}
break;
case NETOPT_STATE_RESET:
at86rf2xx_reset(dev);
break;
default:
return -ENOTSUP;
}
return sizeof(netopt_state_t);
}
