net/mac802154/mac_cmd.c

   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
  32 static 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
  65 static 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
 108 static 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
 129 static 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
 145 struct 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 };