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, ¶ms, 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, ¶ms->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 }; 153