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120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/*
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* Copyright (C) 2014 Martine Lenders <mlenders@inf.fu-berlin.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @addtogroup netdev
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* @{
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*
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* @file 802154.c
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* @brief Provides wrappers of @ref netdev/base.h functions to
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* netdev/802154.h functions.
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*
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* @author Martine Lenders <mlenders@inf.fu-berlin.de>
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*/
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#include <errno.h>
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#include <stdint.h>
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#include <string.h>
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#include "netdev/802154.h"
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static inline netdev_802154_driver_t *_get_driver(netdev_t *dev)
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{
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return (netdev_802154_driver_t *)dev->driver;
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}
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/* define to implement yourself and omit compilation of this function */
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#ifndef NETDEV_802154_SEND_DATA_OVERLOAD
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static size_t _get_src_len(netdev_t *dev)
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{
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size_t src_len, src_len_len = sizeof(size_t);
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if (_get_driver(dev)->get_option(dev, NETDEV_OPT_SRC_LEN, &src_len, &src_len_len) < 0) {
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return 2;
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}
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return src_len;
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}
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int netdev_802154_send_data(netdev_t *dev, void *dest, size_t dest_len,
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netdev_hlist_t *upper_layer_hdrs, void *data,
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size_t data_len)
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{
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int use_long_addr;
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if (dev == NULL || dev->type != NETDEV_TYPE_802154) {
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return -ENODEV;
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}
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use_long_addr = _get_src_len(dev) == 8;
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if (dest_len != 8 && dest_len != 4) { /* 8 for EUI-64, 4 for short address + PAN ID*/
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return -EAFNOSUPPORT;
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}
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switch (_get_driver(dev)->send(dev, NETDEV_802154_PKT_KIND_DATA,
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(netdev_802154_node_addr_t *)dest,
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use_long_addr, 0, upper_layer_hdrs,
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data, data_len)) {
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case NETDEV_802154_TX_STATUS_OK:
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return (int)(data_len + netdev_get_hlist_len(upper_layer_hdrs));
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case NETDEV_802154_TX_STATUS_MEDIUM_BUSY:
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case NETDEV_802154_TX_STATUS_COLLISION:
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return -EBUSY;
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case NETDEV_802154_TX_STATUS_INVALID_PARAM:
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return -EINVAL;
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case NETDEV_802154_TX_STATUS_PACKET_TOO_LONG:
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return -EMSGSIZE;
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case NETDEV_802154_TX_STATUS_ERROR:
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default:
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return -EIO;
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/* NETDEV_802154_TX_STATUS_UNDERFLOW can not happen since
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* netdev_802154_driver_t::send always calls
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* netdev_802154_driver_t::load_tx */
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/* NETDEV_802154_TX_STATUS_NOACK can not happen since
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* wants_ack == 0 */
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}
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}
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#endif /* NETDEV_802154_SEND_DATA_OVERLOAD */
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/* define to implement yourself and omit compilation of this function */
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#ifndef NETDEV_802154_SEND_OVERLOAD
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netdev_802154_tx_status_t netdev_802154_send(netdev_t *dev,
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netdev_802154_pkt_kind_t kind,
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netdev_802154_node_addr_t *dest,
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int use_long_addr,
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int wants_ack,
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netdev_hlist_t *upper_layer_hdrs,
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void *buf,
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unsigned int len)
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{
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netdev_802154_tx_status_t status;
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if (dev == NULL || dev->type != NETDEV_TYPE_802154) {
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return NETDEV_802154_TX_STATUS_NO_DEV;
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}
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status = _get_driver(dev)->load_tx(dev, kind, dest, use_long_addr, wants_ack,
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upper_layer_hdrs, buf, len);
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if (status != NETDEV_802154_TX_STATUS_OK) {
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return status;
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}
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return _get_driver(dev)->transmit(dev);
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}
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#endif /* NETDEV_802154_SEND_OVERLOAD */
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/**
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* @}
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*/
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