| alex.bluesman.smirnov@gmail.com | ef2486f | 2012-05-15 20:50:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2007-2012 Siemens AG |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 |
| 6 | * as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | * |
| 17 | * Written by: |
| 18 | * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> |
| 19 | * Sergey Lapin <slapin@ossfans.org> |
| 20 | * Maxim Gorbachyov <maxim.gorbachev@siemens.com> |
| 21 | * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> |
| 22 | */ |
| 23 | |
| 24 | #include <linux/if_arp.h> |
| 25 | |
| 26 | #include <net/mac802154.h> |
| 27 | #include <net/wpan-phy.h> |
| 28 | |
| 29 | #include "mac802154.h" |
| 30 | |
| 31 | struct hw_addr_filt_notify_work { |
| 32 | struct work_struct work; |
| 33 | struct net_device *dev; |
| 34 | unsigned long changed; |
| 35 | }; |
| 36 | |
| 37 | struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev) |
| 38 | { |
| 39 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
| 40 | |
| 41 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
| 42 | |
| 43 | return priv->hw; |
| 44 | } |
| 45 | |
| 46 | static void hw_addr_notify(struct work_struct *work) |
| 47 | { |
| 48 | struct hw_addr_filt_notify_work *nw = container_of(work, |
| 49 | struct hw_addr_filt_notify_work, work); |
| 50 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); |
| 51 | int res; |
| 52 | |
| 53 | res = hw->ops->set_hw_addr_filt(&hw->hw, |
| 54 | &hw->hw.hw_filt, |
| 55 | nw->changed); |
| 56 | if (res) |
| 57 | pr_debug("failed changed mask %lx\n", nw->changed); |
| 58 | |
| 59 | kfree(nw); |
| 60 | |
| 61 | return; |
| 62 | } |
| 63 | |
| 64 | static void set_hw_addr_filt(struct net_device *dev, unsigned long changed) |
| 65 | { |
| 66 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
| 67 | struct hw_addr_filt_notify_work *work; |
| 68 | |
| 69 | work = kzalloc(sizeof(*work), GFP_ATOMIC); |
| 70 | if (!work) |
| 71 | return; |
| 72 | |
| 73 | INIT_WORK(&work->work, hw_addr_notify); |
| 74 | work->dev = dev; |
| 75 | work->changed = changed; |
| 76 | queue_work(priv->hw->dev_workqueue, &work->work); |
| 77 | |
| 78 | return; |
| 79 | } |
| 80 | |
| 81 | void mac802154_dev_set_ieee_addr(struct net_device *dev) |
| 82 | { |
| 83 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
| 84 | struct mac802154_priv *mac = priv->hw; |
| 85 | |
| 86 | if (mac->ops->set_hw_addr_filt && |
| 87 | memcmp(mac->hw.hw_filt.ieee_addr, |
| 88 | dev->dev_addr, IEEE802154_ADDR_LEN)) { |
| 89 | memcpy(mac->hw.hw_filt.ieee_addr, |
| 90 | dev->dev_addr, IEEE802154_ADDR_LEN); |
| 91 | set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED); |
| 92 | } |
| 93 | } |