Support for IEEE 802.15.4 management information base,
routine like setting of HW address, PAN id, channel etc...
Signed-off-by: Alexander Smirnov <alex.bluesman.smir...@gmail.com>
---
include/linux/if.h | 3 +
net/mac802154/Makefile | 2 +-
net/mac802154/mac802154.h | 22 ++++
net/mac802154/mib.c | 247 +++++++++++++++++++++++++++++++++++++++++++++
net/mac802154/mib.h | 35 +++++++
5 files changed, 308 insertions(+), 1 deletions(-)
create mode 100644 net/mac802154/mib.c
create mode 100644 net/mac802154/mib.h
diff --git a/include/linux/if.h b/include/linux/if.h
index 06b6ef6..deaf14c 100644
--- a/include/linux/if.h
+++ b/include/linux/if.h
@@ -76,6 +76,9 @@
#define IFF_BRIDGE_PORT 0x4000 /* device used as bridge port */
#define IFF_OVS_DATAPATH 0x8000 /* device used as Open vSwitch
* datapath port */
+
+#define IFF_IEEE802154_COORD 0x400 /* IEEE802.15.4 PAN coordinator */
+
#define IFF_TX_SKB_SHARING 0x10000 /* The interface supports sharing
* skbs on transmit */
#define IFF_UNICAST_FLT 0x20000 /* Supports unicast filtering
*/
diff --git a/net/mac802154/Makefile b/net/mac802154/Makefile
index 490beef..875feb2 100644
--- a/net/mac802154/Makefile
+++ b/net/mac802154/Makefile
@@ -1,2 +1,2 @@
obj-$(CONFIG_MAC802154) += mac802154.o
-mac802154-objs := ieee802154_dev.o rx.o tx.o
+mac802154-objs := ieee802154_dev.o rx.o tx.o mib.o
diff --git a/net/mac802154/mac802154.h b/net/mac802154/mac802154.h
index 99c16ac..752ae6a 100644
--- a/net/mac802154/mac802154.h
+++ b/net/mac802154/mac802154.h
@@ -53,4 +53,26 @@ struct mac802154_priv {
#define mac802154_to_priv(_hw) container_of(_hw, struct mac802154_priv, hw)
+struct mac802154_sub_if_data {
+ struct list_head list; /* the ieee802154_priv->slaves list */
+
+ struct mac802154_priv *hw;
+ struct net_device *dev;
+
+ int type;
+
+ spinlock_t mib_lock;
+
+ u16 pan_id;
+ u16 short_addr;
+
+ u8 chan;
+ u8 page;
+
+ /* MAC BSN field */
+ u8 bsn;
+ /* MAC DSN field */
+ u8 dsn;
+};
+
#endif /* MAC802154_H */
diff --git a/net/mac802154/mib.c b/net/mac802154/mib.c
new file mode 100644
index 0000000..8574bf6
--- /dev/null
+++ b/net/mac802154/mib.c
@@ -0,0 +1,247 @@
+/*
+ * Copyright 2007, 2008, 2009 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Dmitry Eremin-Solenikov <dbarysh...@gmail.com>
+ * Sergey Lapin <sla...@ossfans.org>
+ * Maxim Gorbachyov <maxim.gorbac...@siemens.com>
+ */
+
+#include <linux/if_arp.h>
+
+#include <net/mac802154.h>
+#include <net/wpan-phy.h>
+
+#include "mac802154.h"
+#include "mib.h"
+
+struct phy_chan_notify_work {
+ struct work_struct work;
+ struct net_device *dev;
+};
+
+struct hw_addr_filt_notify_work {
+ struct work_struct work;
+ struct net_device *dev;
+ unsigned long changed;
+};
+
+static void hw_addr_notify(struct work_struct *work)
+{
+ struct hw_addr_filt_notify_work *nw =
+ container_of(work, struct hw_addr_filt_notify_work, work);
+ struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev);
+ int res;
+
+ res = hw->ops->set_hw_addr_filt(&hw->hw, &hw->hw.hw_filt, nw->changed);
+ if (res)
+ pr_debug("(%s): failed changed mask %lx\n",
+ __func__, nw->changed);
+
+ kfree(nw);
+
+ return;
+}
+
+static void set_hw_addr_filt(struct net_device *dev, unsigned long changed)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ struct hw_addr_filt_notify_work *work;
+
+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work)
+ return;
+
+ INIT_WORK(&work->work, hw_addr_notify);
+ work->dev = dev;
+ work->changed = changed;
+ queue_work(priv->hw->dev_workqueue, &work->work);
+
+ return;
+}
+
+static void phy_chan_notify(struct work_struct *work)
+{
+ struct phy_chan_notify_work *nw =
+ container_of(work, struct phy_chan_notify_work, work);
+ struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev);
+ struct mac802154_sub_if_data *priv = netdev_priv(nw->dev);
+ int res;
+
+ res = hw->ops->set_channel(&hw->hw, priv->page, priv->chan);
+ if (res)
+ pr_debug("(%s): set_channel failed\n", __func__);
+
+ kfree(nw);
+
+ return;
+}
+
+u16 mac802154_dev_get_pan_id(const struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ u16 ret;
+
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ spin_lock_bh(&priv->mib_lock);
+ ret = priv->pan_id;
+ spin_unlock_bh(&priv->mib_lock);
+
+ return ret;
+}
+
+u16 mac802154_dev_get_short_addr(const struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ u16 ret;
+
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ spin_lock_bh(&priv->mib_lock);
+ ret = priv->short_addr;
+ spin_unlock_bh(&priv->mib_lock);
+
+ return ret;
+}
+
+void mac802154_dev_set_pan_id(struct net_device *dev, u16 val)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ spin_lock_bh(&priv->mib_lock);
+ priv->pan_id = val;
+ spin_unlock_bh(&priv->mib_lock);
+
+ if (priv->hw->ops->set_hw_addr_filt &&
+ (priv->hw->hw.hw_filt.pan_id != priv->pan_id)) {
+ priv->hw->hw.hw_filt.pan_id = priv->pan_id;
+ set_hw_addr_filt(dev, IEEE802515_PANID_CHANGED);
+ }
+}
+
+void mac802154_dev_set_pan_coord(struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ int pan_coord = !!(dev->priv_flags & IFF_IEEE802154_COORD);
+
+ if (priv->hw->ops->set_hw_addr_filt &&
+ (priv->hw->hw.hw_filt.pan_coord != pan_coord)) {
+ priv->hw->hw.hw_filt.pan_coord = pan_coord;
+ set_hw_addr_filt(dev, IEEE802515_PANC_CHANGED);
+ }
+}
+
+void mac802154_dev_set_short_addr(struct net_device *dev, u16 val)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ spin_lock_bh(&priv->mib_lock);
+ priv->short_addr = val;
+ spin_unlock_bh(&priv->mib_lock);
+
+ if (priv->hw->ops->set_hw_addr_filt &&
+ (priv->hw->hw.hw_filt.short_addr != priv->short_addr)) {
+ priv->hw->hw.hw_filt.short_addr = priv->short_addr;
+ set_hw_addr_filt(dev, IEEE802515_SADDR_CHANGED);
+ }
+}
+
+void mac802154_dev_set_ieee_addr(struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+
+ if (priv->hw->ops->set_hw_addr_filt &&
+ memcmp(priv->hw->hw.hw_filt.ieee_addr,
+ dev->dev_addr, IEEE802154_ALEN)) {
+ memcpy(priv->hw->hw.hw_filt.ieee_addr,
+ dev->dev_addr, IEEE802154_ALEN);
+ set_hw_addr_filt(dev, IEEE802515_IEEEADDR_CHANGED);
+ }
+}
+
+void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ struct phy_chan_notify_work *work;
+
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ spin_lock_bh(&priv->mib_lock);
+ priv->page = page;
+ priv->chan = chan;
+ spin_unlock_bh(&priv->mib_lock);
+
+ if (priv->hw->phy->current_channel != priv->chan ||
+ priv->hw->phy->current_page != priv->page) {
+ work = kzalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work)
+ return;
+
+ INIT_WORK(&work->work, phy_chan_notify);
+ work->dev = dev;
+ queue_work(priv->hw->dev_workqueue, &work->work);
+ }
+}
+
+u8 mac802154_dev_get_dsn(const struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ u16 ret;
+
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ spin_lock_bh(&priv->mib_lock);
+ ret = priv->dsn++;
+ spin_unlock_bh(&priv->mib_lock);
+
+ return ret;
+}
+
+u8 mac802154_dev_get_bsn(const struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ u16 ret;
+
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ spin_lock_bh(&priv->mib_lock);
+ ret = priv->bsn++;
+ spin_unlock_bh(&priv->mib_lock);
+
+ return ret;
+}
+
+struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ return priv->hw;
+}
+
+struct wpan_phy *mac802154_get_phy(const struct net_device *dev)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+
+ BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+ return to_phy(get_device(&priv->hw->phy->dev));
+}
diff --git a/net/mac802154/mib.h b/net/mac802154/mib.h
new file mode 100644
index 0000000..a243339
--- /dev/null
+++ b/net/mac802154/mib.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2008 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef MIB802154_H
+#define MIB802154_H
+
+/* MIB API */
+u8 mac802154_dev_get_dsn(const struct net_device *dev);
+u8 mac802154_dev_get_bsn(const struct net_device *dev);
+u16 mac802154_dev_get_pan_id(const struct net_device *dev);
+u16 mac802154_dev_get_short_addr(const struct net_device *dev);
+void mac802154_dev_set_pan_id(struct net_device *dev, u16 val);
+void mac802154_dev_set_pan_coord(struct net_device *dev);
+void mac802154_dev_set_short_addr(struct net_device *dev, u16 val);
+void mac802154_dev_set_ieee_addr(struct net_device *dev);
+void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
+struct wpan_phy *mac802154_get_phy(const struct net_device *dev);
+struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev);
+
+#endif
--
1.7.2.3
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