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_mlme_ops *ops = ieee802154_mlme_ops(dev); 40 int rc = 0; 41 42 ASSERT_RTNL(); 43 44 BUG_ON(addr->mode != IEEE802154_ADDR_SHORT); 45 46 mac802154_dev_set_pan_id(dev, addr->pan_id); 47 mac802154_dev_set_short_addr(dev, addr->short_addr); 48 mac802154_dev_set_page_channel(dev, page, channel); 49 50 if (ops->llsec) { 51 struct ieee802154_llsec_params params; 52 int changed = 0; 53 54 params.coord_shortaddr = addr->short_addr; 55 changed |= IEEE802154_LLSEC_PARAM_COORD_SHORTADDR; 56 57 params.pan_id = addr->pan_id; 58 changed |= IEEE802154_LLSEC_PARAM_PAN_ID; 59 60 params.hwaddr = ieee802154_devaddr_from_raw(dev->dev_addr); 61 changed |= IEEE802154_LLSEC_PARAM_HWADDR; 62 63 params.coord_hwaddr = params.hwaddr; 64 changed |= IEEE802154_LLSEC_PARAM_COORD_HWADDR; 65 66 rc = ops->llsec->set_params(dev, ¶ms, changed); 67 } 68 69 return rc; 70 } 71 72 static int mac802154_set_mac_params(struct net_device *dev, 73 const struct ieee802154_mac_params *params) 74 { 75 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 76 struct ieee802154_local *local = sdata->local; 77 struct wpan_dev *wpan_dev = &sdata->wpan_dev; 78 int ret; 79 80 ASSERT_RTNL(); 81 82 /* PHY */ 83 wpan_dev->wpan_phy->transmit_power = params->transmit_power; 84 wpan_dev->wpan_phy->cca_mode = params->cca_mode; 85 wpan_dev->wpan_phy->cca_ed_level = params->cca_ed_level; 86 87 /* MAC */ 88 wpan_dev->min_be = params->min_be; 89 wpan_dev->max_be = params->max_be; 90 wpan_dev->csma_retries = params->csma_retries; 91 wpan_dev->frame_retries = params->frame_retries; 92 wpan_dev->lbt = params->lbt; 93 94 if (local->hw.flags & IEEE802154_HW_TXPOWER) { 95 ret = drv_set_tx_power(local, params->transmit_power); 96 if (ret < 0) 97 return ret; 98 } 99 100 if (local->hw.flags & IEEE802154_HW_CCA_MODE) { 101 ret = drv_set_cca_mode(local, params->cca_mode); 102 if (ret < 0) 103 return ret; 104 } 105 106 if (local->hw.flags & IEEE802154_HW_CCA_ED_LEVEL) { 107 ret = drv_set_cca_ed_level(local, params->cca_ed_level); 108 if (ret < 0) 109 return ret; 110 } 111 112 return 0; 113 } 114 115 static void mac802154_get_mac_params(struct net_device *dev, 116 struct ieee802154_mac_params *params) 117 { 118 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); 119 struct wpan_dev *wpan_dev = &sdata->wpan_dev; 120 121 ASSERT_RTNL(); 122 123 /* PHY */ 124 params->transmit_power = wpan_dev->wpan_phy->transmit_power; 125 params->cca_mode = wpan_dev->wpan_phy->cca_mode; 126 params->cca_ed_level = wpan_dev->wpan_phy->cca_ed_level; 127 128 /* MAC */ 129 params->min_be = wpan_dev->min_be; 130 params->max_be = wpan_dev->max_be; 131 params->csma_retries = wpan_dev->csma_retries; 132 params->frame_retries = wpan_dev->frame_retries; 133 params->lbt = wpan_dev->lbt; 134 } 135 136 static struct ieee802154_llsec_ops mac802154_llsec_ops = { 137 .get_params = mac802154_get_params, 138 .set_params = mac802154_set_params, 139 .add_key = mac802154_add_key, 140 .del_key = mac802154_del_key, 141 .add_dev = mac802154_add_dev, 142 .del_dev = mac802154_del_dev, 143 .add_devkey = mac802154_add_devkey, 144 .del_devkey = mac802154_del_devkey, 145 .add_seclevel = mac802154_add_seclevel, 146 .del_seclevel = mac802154_del_seclevel, 147 .lock_table = mac802154_lock_table, 148 .get_table = mac802154_get_table, 149 .unlock_table = mac802154_unlock_table, 150 }; 151 152 struct ieee802154_mlme_ops mac802154_mlme_wpan = { 153 .start_req = mac802154_mlme_start_req, 154 .get_pan_id = mac802154_dev_get_pan_id, 155 .get_short_addr = mac802154_dev_get_short_addr, 156 .get_dsn = mac802154_dev_get_dsn, 157 158 .llsec = &mac802154_llsec_ops, 159 160 .set_mac_params = mac802154_set_mac_params, 161 .get_mac_params = mac802154_get_mac_params, 162 }; 163