LXR linux/net/mac802154/mac

   1/*
   2 * MAC commands interface
   3 *
   4 * Copyright 2007-2012 Siemens AG
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2
   8 * as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 *
  15 * Written by:
  16 * Sergey Lapin <slapin@ossfans.org>
  17 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
  18 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
  19 */
  20
  21#include <linux/skbuff.h>
  22#include <linux/if_arp.h>
  23#include <linux/ieee802154.h>
  24
  25#include <net/ieee802154_netdev.h>
  26#include <net/cfg802154.h>
  27#include <net/mac802154.h>
  28
  29#include "ieee802154_i.h"
  30#include "driver-ops.h"
  31
  32static int mac802154_mlme_start_req(struct net_device *dev,
  33                                    struct ieee802154_addr *addr,
  34                                    u8 channel, u8 page,
  35                                    u8 bcn_ord, u8 sf_ord,
  36                                    u8 pan_coord, u8 blx,
  37                                    u8 coord_realign)
  38{
  39        struct ieee802154_llsec_params params;
  40        int changed = 0;
  41
  42        ASSERT_RTNL();
  43
  44        BUG_ON(addr->mode != IEEE802154_ADDR_SHORT);
  45
  46        dev->ieee802154_ptr->pan_id = addr->pan_id;
  47        dev->ieee802154_ptr->short_addr = addr->short_addr;
  48        mac802154_dev_set_page_channel(dev, page, channel);
  49
  50        params.pan_id = addr->pan_id;
  51        changed |= IEEE802154_LLSEC_PARAM_PAN_ID;
  52
  53        params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr);
  54        changed |= IEEE802154_LLSEC_PARAM_HWADDR;
  55
  56        params.coord_hwaddr = params.hwaddr;
  57        changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR;
  58
  59        params.coord_shortaddr = addr->short_addr;
  60        changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR;
  61
  62        return mac802154_set_params(dev, &params, changed);
  63}
  64
  65static int mac802154_set_mac_params(struct net_device *dev,
  66                                    const struct ieee802154_mac_params *params)
  67{
  68        struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
  69        struct ieee802154_local *local = sdata->local;
  70        struct wpan_dev *wpan_dev = &sdata->wpan_dev;
  71        int ret;
  72
  73        ASSERT_RTNL();
  74
  75        /* PHY */
  76        wpan_dev->wpan_phy->transmit_power = params->transmit_power;
  77        wpan_dev->wpan_phy->cca = params->cca;
  78        wpan_dev->wpan_phy->cca_ed_level = params->cca_ed_level;
  79
  80        /* MAC */
  81        wpan_dev->min_be = params->min_be;
  82        wpan_dev->max_be = params->max_be;
  83        wpan_dev->csma_retries = params->csma_retries;
  84        wpan_dev->frame_retries = params->frame_retries;
  85        wpan_dev->lbt = params->lbt;
  86
  87        if (local->hw.phy->flags & WPAN_PHY_FLAG_TXPOWER) {
  88                ret = drv_set_tx_power(local, params->transmit_power);
  89                if (ret < 0)
  90                        return ret;
  91        }
  92
  93        if (local->hw.phy->flags & WPAN_PHY_FLAG_CCA_MODE) {
  94                ret = drv_set_cca_mode(local, &params->cca);
  95                if (ret < 0)
  96                        return ret;
  97        }
  98
  99        if (local->hw.phy->flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
 100                ret = drv_set_cca_ed_level(local, params->cca_ed_level);
 101                if (ret < 0)
 102                        return ret;
 103        }
 104
 105        return 0;
 106}
 107
 108static void mac802154_get_mac_params(struct net_device *dev,
 109                                     struct ieee802154_mac_params *params)
 110{
 111        struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
 112        struct wpan_dev *wpan_dev = &sdata->wpan_dev;
 113
 114        ASSERT_RTNL();
 115
 116        /* PHY */
 117        params->transmit_power = wpan_dev->wpan_phy->transmit_power;
 118        params->cca = wpan_dev->wpan_phy->cca;
 119        params->cca_ed_level = wpan_dev->wpan_phy->cca_ed_level;
 120
 121        /* MAC */
 122        params->min_be = wpan_dev->min_be;
 123        params->max_be = wpan_dev->max_be;
 124        params->csma_retries = wpan_dev->csma_retries;
 125        params->frame_retries = wpan_dev->frame_retries;
 126        params->lbt = wpan_dev->lbt;
 127}
 128
 129static const struct ieee802154_llsec_ops mac802154_llsec_ops = {
 130        .get_params = mac802154_get_params,
 131        .set_params = mac802154_set_params,
 132        .add_key = mac802154_add_key,
 133        .del_key = mac802154_del_key,
 134        .add_dev = mac802154_add_dev,
 135        .del_dev = mac802154_del_dev,
 136        .add_devkey = mac802154_add_devkey,
 137        .del_devkey = mac802154_del_devkey,
 138        .add_seclevel = mac802154_add_seclevel,
 139        .del_seclevel = mac802154_del_seclevel,
 140        .lock_table = mac802154_lock_table,
 141        .get_table = mac802154_get_table,
 142        .unlock_table = mac802154_unlock_table,
 143};
 144
 145struct ieee802154_mlme_ops mac802154_mlme_wpan = {
 146        .start_req = mac802154_mlme_start_req,
 147
 148        .llsec = &mac802154_llsec_ops,
 149
 150        .set_mac_params = mac802154_set_mac_params,
 151        .get_mac_params = mac802154_get_mac_params,
 152};
 153