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RIOT/drivers/netdev_ieee802154/netdev_ieee802154.c 7.09 KB
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  /*
   * Copyright (C) 2016 Freie Universitรคt Berlin
   *
   * 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     driver_netdev_ieee802154
   * @{
   *
   * @file
   * @author  Martine Lenders <mlenders@inf.fu-berlin.de>
   */
  
  #include <assert.h>
  #include <errno.h>
  #include <string.h>
  #include <stdbool.h>
  
  #include "net/eui64.h"
  #include "net/ieee802154.h"
  #include "net/netdev.h"
  
  #include "net/netdev/ieee802154.h"
  
  #define ENABLE_DEBUG (0)
  #include "debug.h"
  
  static int _get_iid(netdev_ieee802154_t *dev, eui64_t *value, size_t max_len)
  {
      uint8_t *addr;
      uint16_t addr_len;
  
      assert(max_len >= sizeof(eui64_t));
  
      if (dev->flags & NETDEV_IEEE802154_SRC_MODE_LONG) {
          addr_len = IEEE802154_LONG_ADDRESS_LEN;
          addr = dev->long_addr;
      }
      else {
          addr_len = IEEE802154_SHORT_ADDRESS_LEN;
          addr = dev->short_addr;
      }
      ieee802154_get_iid(value, addr, addr_len);
  
      return sizeof(eui64_t);
  }
  
  int netdev_ieee802154_get(netdev_ieee802154_t *dev, netopt_t opt, void *value,
                             size_t max_len)
  {
      int res = -ENOTSUP;
  
      switch (opt) {
          case NETOPT_ADDRESS:
              assert(max_len >= sizeof(dev->short_addr));
              memcpy(value, dev->short_addr, sizeof(dev->short_addr));
              res = sizeof(dev->short_addr);
              break;
          case NETOPT_ADDRESS_LONG:
              assert(max_len >= sizeof(dev->long_addr));
              memcpy(value, dev->long_addr, sizeof(dev->long_addr));
              res = sizeof(dev->long_addr);
              break;
          case NETOPT_ADDR_LEN:
          case NETOPT_SRC_LEN:
              assert(max_len == sizeof(uint16_t));
              if (dev->flags & NETDEV_IEEE802154_SRC_MODE_LONG) {
                  *((uint16_t *)value) = IEEE802154_LONG_ADDRESS_LEN;
              }
              else {
                  *((uint16_t *)value) = IEEE802154_SHORT_ADDRESS_LEN;
              }
              res = sizeof(uint16_t);
              break;
          case NETOPT_NID:
              assert(max_len == sizeof(dev->pan));
              *((uint16_t *)value) = dev->pan;
              res = sizeof(dev->pan);
              break;
          case NETOPT_CHANNEL:
              assert(max_len == sizeof(uint16_t));
              *((uint16_t *)value) = (uint16_t)dev->chan;
              res = sizeof(dev->chan);
              break;
          case NETOPT_ACK_REQ:
              assert(max_len == sizeof(netopt_enable_t));
              if (dev->flags & NETDEV_IEEE802154_ACK_REQ) {
                  *((netopt_enable_t *)value) = NETOPT_ENABLE;
              }
              else {
                  *((netopt_enable_t *)value) = NETOPT_DISABLE;
              }
              res = sizeof(netopt_enable_t);
              break;
          case NETOPT_RAWMODE:
              assert(max_len == sizeof(netopt_enable_t));
              if (dev->flags & NETDEV_IEEE802154_RAW) {
                  *((netopt_enable_t *)value) = NETOPT_ENABLE;
              }
              else {
                  *((netopt_enable_t *)value) = NETOPT_DISABLE;
              }
              res = sizeof(netopt_enable_t);
              break;
  #ifdef MODULE_GNRC
          case NETOPT_PROTO:
              assert(max_len == sizeof(gnrc_nettype_t));
              *((gnrc_nettype_t *)value) = dev->proto;
              res = sizeof(gnrc_nettype_t);
              break;
  #endif
          case NETOPT_DEVICE_TYPE:
              assert(max_len == sizeof(uint16_t));
              *((uint16_t *)value) = NETDEV_TYPE_IEEE802154;
              res = sizeof(uint16_t);
              break;
          case NETOPT_IPV6_IID:
              res = _get_iid(dev, value, max_len);
              break;
  #ifdef MODULE_NETSTATS_L2
          case NETOPT_STATS:
              assert(max_len == sizeof(uintptr_t));
              *((netstats_t **)value) = &dev->netdev.stats;
              res = sizeof(uintptr_t);
              break;
  #endif
  #ifdef MODULE_L2FILTER
          case NETOPT_L2FILTER:
              assert(max_len >= sizeof(l2filter_t **));
              *((l2filter_t **)value) = dev->netdev.filter;
              res = sizeof(l2filter_t **);
              break;
  #endif
          default:
              break;
      }
      return res;
  }
  
  int netdev_ieee802154_set(netdev_ieee802154_t *dev, netopt_t opt, const void *value,
                             size_t len)
  {
      int res = -ENOTSUP;
  
      switch (opt) {
          case NETOPT_CHANNEL:
          {
              assert(len == sizeof(uint16_t));
              uint16_t chan = *((uint16_t *)value);
              /* real validity needs to be checked by device, since sub-GHz and
               * 2.4 GHz band radios have different legal values. Here we only
               * check that it fits in an 8-bit variabl*/
              assert(chan <= UINT8_MAX);
              dev->chan = chan;
              res = sizeof(uint16_t);
              break;
          }
          case NETOPT_ADDRESS:
              assert(len <= sizeof(dev->short_addr));
              memset(dev->short_addr, 0, sizeof(dev->short_addr));
              memcpy(dev->short_addr, value, len);
              res = sizeof(dev->short_addr);
              break;
          case NETOPT_ADDRESS_LONG:
              assert(len <= sizeof(dev->long_addr));
              memset(dev->long_addr, 0, sizeof(dev->long_addr));
              memcpy(dev->long_addr, value, len);
              res = sizeof(dev->long_addr);
              break;
          case NETOPT_ADDR_LEN:
          case NETOPT_SRC_LEN:
              assert(len == sizeof(uint16_t));
              res = sizeof(uint16_t);
              switch ((*(uint16_t *)value)) {
                  case IEEE802154_SHORT_ADDRESS_LEN:
                      dev->flags &= ~NETDEV_IEEE802154_SRC_MODE_LONG;
                      break;
                  case IEEE802154_LONG_ADDRESS_LEN:
                      dev->flags |= NETDEV_IEEE802154_SRC_MODE_LONG;
                      break;
                  default:
                      res = -EAFNOSUPPORT;
                      break;
              }
              break;
          case NETOPT_NID:
              assert(len == sizeof(dev->pan));
              dev->pan = *((uint16_t *)value);
              res = sizeof(dev->pan);
              break;
          case NETOPT_ACK_REQ:
              if ((*(bool *)value)) {
                  dev->flags |= NETDEV_IEEE802154_ACK_REQ;
              }
              else {
                  dev->flags &= ~NETDEV_IEEE802154_ACK_REQ;
              }
              res = sizeof(uint16_t);
              break;
          case NETOPT_RAWMODE:
              if ((*(bool *)value)) {
                  dev->flags |= NETDEV_IEEE802154_RAW;
              }
              else {
                  dev->flags &= ~NETDEV_IEEE802154_RAW;
              }
              res = sizeof(uint16_t);
              break;
  #ifdef MODULE_GNRC
          case NETOPT_PROTO:
              assert(len == sizeof(gnrc_nettype_t));
              dev->proto = *((gnrc_nettype_t *)value);
              res = sizeof(gnrc_nettype_t);
              break;
  #endif
  #ifdef MODULE_L2FILTER
          case NETOPT_L2FILTER:
              res = l2filter_add(dev->netdev.filter, value, len);
              break;
          case NETOPT_L2FILTER_RM:
              res = l2filter_rm(dev->netdev.filter, value, len);
              break;
  #endif
          default:
              break;
      }
      return res;
  }
  
  /** @} */