static int _send(netdev2_t *netdev, const struct iovec *vector, int count)
{
at86rf2xx_t *dev = (at86rf2xx_t *)netdev;
const struct iovec *ptr = vector;
size_t len = 0;
at86rf2xx_tx_prepare(dev);
/* load packet data into FIFO */
for (int i = 0; i < count; i++, ptr++) {
/* current packet data + FCS too long */
if ((len + ptr->iov_len + 2) > AT86RF2XX_MAX_PKT_LENGTH) {
DEBUG("[at86rf2xx] error: packet too large (%u byte) to be send\n",
(unsigned)len + 2);
return -EOVERFLOW;
}
#ifdef MODULE_NETSTATS_L2
netdev->stats.tx_bytes += len;
#endif
len = at86rf2xx_tx_load(dev, ptr->iov_base, ptr->iov_len, len);
}
/* send data out directly if pre-loading id disabled */
if (!(dev->netdev.flags & AT86RF2XX_OPT_PRELOADING)) {
at86rf2xx_tx_exec(dev);
}
/* return the number of bytes that were actually send out */
return (int)len;
}
size_t at86rf2xx_send(at86rf2xx_t *dev, uint8_t *data, size_t len)
{
/* check data length */
if (len > AT86RF2XX_MAX_PKT_LENGTH) {
DEBUG("[at86rf2xx] Error: data to send exceeds max packet size\n");
return 0;
}
at86rf2xx_tx_prepare(dev);
at86rf2xx_tx_load(dev, data, len, 0);
at86rf2xx_tx_exec(dev);
return len;
}
