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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6ca001978d
Since three of the four clear channel assesment modes make use of energy detection, provide an API to set the energy detection threshold. Driver support for this is available in at86rf230 for the RF212 chips. Since for these chips the minimal energy detection threshold depends on page and channel used, add a field to struct at86rf230_local that stores the minimal threshold. Actual ED thresholds are configured as offsets from this value. For RF212, setting the ED threshold will not work before a channel/page has been set due to the dependency of energy detection in the chip and the actual channel/page selected. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/*
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* Copyright (C) 2007, 2008, 2009 Siemens AG
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Written by:
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* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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*/
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#ifndef WPAN_PHY_H
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#define WPAN_PHY_H
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#include <linux/netdevice.h>
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#include <linux/mutex.h>
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#include <linux/bug.h>
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/* According to the IEEE 802.15.4 stadard the upper most significant bits of
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* the 32-bit channel bitmaps shall be used as an integer value to specify 32
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* possible channel pages. The lower 27 bits of the channel bit map shall be
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* used as a bit mask to specify channel numbers within a channel page.
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*/
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#define WPAN_NUM_CHANNELS 27
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#define WPAN_NUM_PAGES 32
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struct wpan_phy {
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struct mutex pib_lock;
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/*
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* This is a PIB according to 802.15.4-2011.
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* We do not provide timing-related variables, as they
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* aren't used outside of driver
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*/
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u8 current_channel;
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u8 current_page;
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u32 channels_supported[32];
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s8 transmit_power;
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u8 cca_mode;
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bool lbt;
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s32 cca_ed_level;
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struct device dev;
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int idx;
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struct net_device *(*add_iface)(struct wpan_phy *phy,
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const char *name, int type);
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void (*del_iface)(struct wpan_phy *phy, struct net_device *dev);
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int (*set_txpower)(struct wpan_phy *phy, int db);
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int (*set_lbt)(struct wpan_phy *phy, bool on);
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int (*set_cca_mode)(struct wpan_phy *phy, u8 cca_mode);
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int (*set_cca_ed_level)(struct wpan_phy *phy, int level);
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char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
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};
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#define to_phy(_dev) container_of(_dev, struct wpan_phy, dev)
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struct wpan_phy *wpan_phy_alloc(size_t priv_size);
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static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
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{
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phy->dev.parent = dev;
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}
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int wpan_phy_register(struct wpan_phy *phy);
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void wpan_phy_unregister(struct wpan_phy *phy);
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void wpan_phy_free(struct wpan_phy *phy);
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/* Same semantics as for class_for_each_device */
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int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
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static inline void *wpan_phy_priv(struct wpan_phy *phy)
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{
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BUG_ON(!phy);
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return &phy->priv;
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}
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struct wpan_phy *wpan_phy_find(const char *str);
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static inline void wpan_phy_put(struct wpan_phy *phy)
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{
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put_device(&phy->dev);
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}
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static inline const char *wpan_phy_name(struct wpan_phy *phy)
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{
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return dev_name(&phy->dev);
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}
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#endif
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