LXR linux/net/mac802154/mac

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * MAC commands interface
   4 *
   5 * Copyright 2007-2012 Siemens AG
   6 *
   7 * Written by:
   8 * Sergey Lapin <slapin@ossfans.org>
   9 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
  10 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
  11 */
  12
  13#include <linux/skbuff.h>
  14#include <linux/if_arp.h>
  15#include <linux/ieee802154.h>
  16
  17#include <net/ieee802154_netdev.h>
  18#include <net/cfg802154.h>
  19#include <net/mac802154.h>
  20
  21#include "ieee802154_i.h"
  22#include "driver-ops.h"
  23
  24static int mac802154_mlme_start_req(struct net_device *dev,
  25                                    struct ieee802154_addr *addr,
  26                                    u8 channel, u8 page,
  27                                    u8 bcn_ord, u8 sf_ord,
  28                                    u8 pan_coord, u8 blx,
  29                                    u8 coord_realign)
  30{
  31        struct ieee802154_llsec_params params;
  32        int changed = 0;
  33
  34        ASSERT_RTNL();
  35
  36        BUG_ON(addr->mode != IEEE802154_ADDR_SHORT);
  37
  38        dev->ieee802154_ptr->pan_id = addr->pan_id;
  39        dev->ieee802154_ptr->short_addr = addr->short_addr;
  40        mac802154_dev_set_page_channel(dev, page, channel);
  41
  42        params.pan_id = addr->pan_id;
  43        changed |= IEEE802154_LLSEC_PARAM_PAN_ID;
  44
  45        params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr);
  46        changed |= IEEE802154_LLSEC_PARAM_HWADDR;
  47
  48        params.coord_hwaddr = params.hwaddr;
  49        changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR;
  50
  51        params.coord_shortaddr = addr->short_addr;
  52        changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR;
  53
  54        return mac802154_set_params(dev, &params, changed);
  55}
  56
  57static int mac802154_set_mac_params(struct net_device *dev,
  58                                    const struct ieee802154_mac_params *params)
  59{
  60        struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
  61        struct ieee802154_local *local = sdata->local;
  62        struct wpan_dev *wpan_dev = &sdata->wpan_dev;
  63        int ret;
  64
  65        ASSERT_RTNL();
  66
  67        /* PHY */
  68        wpan_dev->wpan_phy->transmit_power = params->transmit_power;
  69        wpan_dev->wpan_phy->cca = params->cca;
  70        wpan_dev->wpan_phy->cca_ed_level = params->cca_ed_level;
  71
  72        /* MAC */
  73        wpan_dev->min_be = params->min_be;
  74        wpan_dev->max_be = params->max_be;
  75        wpan_dev->csma_retries = params->csma_retries;
  76        wpan_dev->frame_retries = params->frame_retries;
  77        wpan_dev->lbt = params->lbt;
  78
  79        if (local->hw.phy->flags & WPAN_PHY_FLAG_TXPOWER) {
  80                ret = drv_set_tx_power(local, params->transmit_power);
  81                if (ret < 0)
  82                        return ret;
  83        }
  84
  85        if (local->hw.phy->flags & WPAN_PHY_FLAG_CCA_MODE) {
  86                ret = drv_set_cca_mode(local, &params->cca);
  87                if (ret < 0)
  88                        return ret;
  89        }
  90
  91        if (local->hw.phy->flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
  92                ret = drv_set_cca_ed_level(local, params->cca_ed_level);
  93                if (ret < 0)
  94                        return ret;
  95        }
  96
  97        return 0;
  98}
  99
 100static void mac802154_get_mac_params(struct net_device *dev,
 101                                     struct ieee802154_mac_params *params)
 102{
 103        struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
 104        struct wpan_dev *wpan_dev = &sdata->wpan_dev;
 105
 106        ASSERT_RTNL();
 107
 108        /* PHY */
 109        params->transmit_power = wpan_dev->wpan_phy->transmit_power;
 110        params->cca = wpan_dev->wpan_phy->cca;
 111        params->cca_ed_level = wpan_dev->wpan_phy->cca_ed_level;
 112
 113        /* MAC */
 114        params->min_be = wpan_dev->min_be;
 115        params->max_be = wpan_dev->max_be;
 116        params->csma_retries = wpan_dev->csma_retries;
 117        params->frame_retries = wpan_dev->frame_retries;
 118        params->lbt = wpan_dev->lbt;
 119}
 120
 121static const struct ieee802154_llsec_ops mac802154_llsec_ops = {
 122        .get_params = mac802154_get_params,
 123        .set_params = mac802154_set_params,
 124        .add_key = mac802154_add_key,
 125        .del_key = mac802154_del_key,
 126        .add_dev = mac802154_add_dev,
 127        .del_dev = mac802154_del_dev,
 128        .add_devkey = mac802154_add_devkey,
 129        .del_devkey = mac802154_del_devkey,
 130        .add_seclevel = mac802154_add_seclevel,
 131        .del_seclevel = mac802154_del_seclevel,
 132        .lock_table = mac802154_lock_table,
 133        .get_table = mac802154_get_table,
 134        .unlock_table = mac802154_unlock_table,
 135};
 136
 137struct ieee802154_mlme_ops mac802154_mlme_wpan = {
 138        .start_req = mac802154_mlme_start_req,
 139
 140        .llsec = &mac802154_llsec_ops,
 141
 142        .set_mac_params = mac802154_set_mac_params,
 143        .get_mac_params = mac802154_get_mac_params,
 144};
 145