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Linux/net/mac802154/mac_cmd.c

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  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 };
153 

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