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* mac802154: fix flags BIT definitions orderAlexander Aring2015-06-121-12/+12
| | | | | | | | | | This patch fixes commits ("mac802154: cleanup ieee802154 hardware flags") bcbfd2078d9b11277d9c9ce0c30ba73c750503c9 and ("mac802154: cleanup address filtering flags") 6b70a43c7e0202cf285c864bc9f20f607c42e432 by starting the flags definitions at BIT(0) which is same like the previous behaviour. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: change pan_coord type to boolAlexander Aring2015-06-071-1/+1
| | | | | | | | | To indicate if it's a coordinator or not a bool is enough. There should no more values available which represent some other state. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add missing structure commentsAlexander Aring2015-06-071-6/+28
| | | | | | | | This patch add missing comments to internal mac802154 structures. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: rearrange attribute in ieee802154_hwAlexander Aring2015-06-071-1/+1
| | | | | | | | | | This patch removes the priv attribute in ieee802154_hw to the right section which is commented by attributes which needs to be filled by driver layer. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: remove unused hw_filt attributeAlexander Aring2015-06-071-1/+0
| | | | | | | | | | This patch removed an attribute from ieee802154_hw structure which is never used inside kernel. Address information are stored inside wpan_dev nowadays. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: cleanup ieee802154 hardware flagsAlexander Aring2015-06-071-20/+36
| | | | | | | | | | This patch changes the ieee802154 hardware flags to enums and setting the flag values with the BIT macro. Additional this patch changes the commenting style for matching usual kernel style. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: remove aack hw flagAlexander Aring2015-06-071-2/+0
| | | | | | | | | | | | | | | This patch removes the hardware auto acknowdledge flag which indicates that the transceiver supports this handling. This flag is never evaluated inside mac802154 and all transceivers should support this handling by default per hardware. Suggested-by: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Alan Ott <alan@signal11.us> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Acked-by: Stefan Schmidt <stefan@osg.samsung.com> Acked-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: cleanup address filtering flagsAlexander Aring2015-06-071-10/+21
| | | | | | | | | | This patch changes the address filtering flags to enums and setting the flag values with the BIT macro. Additional this patch changes the commenting style for matching usual kernel style. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: remove unneeded vif structAlexander Aring2015-06-071-8/+0
| | | | | | | | | | | | | | This patch removes the virtual interface structure from sub if data struct, because it isn't used anywhere. This structure could be useful for give per interface information at softmac driver layer. Nevertheless there exist no use case currently and it contains the interface type information currently. This information is also stored inside wpan dev which is now used to check on the wpan dev interface type. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Acked-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* cfg802154: introduce wpan phy flagsAlexander Aring2015-05-191-22/+7
| | | | | | | | | | | | | | | | | | | | | | | This patch introduce a flag property for the wpan phy structure. The current flag settings in ieee802154_hw are accessable in mac802154 layer only which is okay for flags which indicates MAC handling which are done by phy. For real PHY layer settings like cca mode, transmit power, cca energy detection level. The difference between these flags are that the MAC handling flags are only handled in mac802154/HardMac layer e.g. on an interface up. The phy settings are direct netlink calls from nl802154 into the driver layer and the nl802154 need to have a chance to check if the driver supports this handling before sending to the next layer. We also check now on PHY flags while dumping and setting pib attributes. In comparing with MIB attributes the 802.15.4 gives us an default value which we assume when a transceiver implement less functionality. In case of MIB settings the nl802154 layer doesn't need to check on the ieee802154_hw flags then. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: change cca ed level to mbmAlexander Aring2015-05-191-3/+2
| | | | | | | | | | This patch change the handling of cca energy detection level from dbm to mbm. This prepares to handle floating point cca energy detection levels values. The old netlink 802.15.4 will convert the dbm value to mbm for handling backward compatibility. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: change transmit power to mbmAlexander Aring2015-05-191-2/+2
| | | | | | | | | | This patch change the handling of transmit power level from dbm to mbm. This prepares to handle floating point transmit power levels values. The old netlink 802.15.4 will convert the dbm value to mbm for handling backward compatibility. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: change transmit power to s32Alexander Aring2015-05-191-1/+1
| | | | | | | | | | This patch change the transmit power from s8 to s32. This prepares to store a mbm value instead dbm inside the transmit power variable. The old interface keep the a s8 dbm value, which should be backward compatibility when assign s8 to s32. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add description to mac802154 APIsVarka Bhadram2015-04-301-2/+92
| | | | | | | | | This patch adds the proper description to the mac802154 core APIs. Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: fix transmission power datatypeVarka Bhadram2015-04-091-1/+1
| | | | | | | | | | Netlink attribute for the power is s8. But for the driver level operations we are collection power level value into integer. It has to be change to s8 from int. Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: fix typo for deviceVarka Bhadram2015-04-091-1/+1
| | | | | Signed-off-by: Varka Bhadram <varkab@cdac.in> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: cleanup ieee802154_le64_to_be64Alexander Aring2015-02-141-3/+1
| | | | | | | | This patch cleanups the ieee802154_le64_to_be64 function. This patch removes an unnecessary temporary variable. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: cleanup ieee802154_be64_to_le64Alexander Aring2015-02-141-3/+2
| | | | | | | | This patch cleanups the ieee802154_be64_to_le64 function. This patch removes an unnecessary temporary variable. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: rework cca settingAlexander Aring2014-12-191-1/+4
| | | | | | | | | | The current cca setting handle is a driver specific call. We need to introduce some 802.15.4 specific layer and mapping 802.15.4 cca modes to driver specific ones inside the 802.15.4 driver. This patch will add such 802.15.4 layer and mapping the cca settings to driver specific ones. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add interframe spacing time handlingAlexander Aring2014-11-131-1/+2
| | | | | | | | | | | | | | | | | | | This patch adds a new interframe spacing time handling into mac802154 layer. Interframe spacing time is a time period between each transmit. This patch adds a high resolution timer into mac802154 and starts on xmit complete with corresponding interframe spacing expire time if ifs_handling is true. We make it variable because it depends if interframe spacing time is handled by transceiver or mac802154. At the timer complete function we wake the netdev queue again. This avoids new frame transmit in range of interframe spacing time. For synced driver we add no handling of interframe spacing time. This is currently a lack of support in all synced xmit drivers. I suppose it's working because the latency of workqueue which is needed to call spi_sync. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: cleanup ieee802154_netdev_to_extended_addrAlexander Aring2014-11-051-4/+7
| | | | | | | | | This patch cleanups the ieee802154_be64_to_le64 to have a similar function like ieee802154_le64_to_be64 only with switched source and destionation types. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add ieee802154_le64_to_be64Alexander Aring2014-11-051-0/+13
| | | | | | | | This patch adds a new function to convert a le64 to a be64. This is useful to translate an extended address to a netdev dev_addr. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add ieee802154_vif structAlexander Aring2014-11-051-0/+8
| | | | | | | | | | This patch adds an ieee802154_vif similar like the ieee80211_vif which holds the interface type and maybe further more attributes like the ieee80211_vif structure. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: fix byteorder issuesAlexander Aring2014-11-021-3/+3
| | | | | | | | | | | | | | | | | | Running make C=2 occurs these warnings: cast from restricted __be64 incorrect type in argument 1 (different base types) expected unsigned long long[unsigned] [usertype] val got restricted __be64 [usertype]<noident> cast from restricted __be64 cast to restricted __le64 This patch fix these warnings by forcing to __le64 type and using swabp64 instead swab64. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reported-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add helper for converting dev_addrAlexander Aring2014-11-021-0/+9
| | | | | | | | | This patch adds a helper for converting the dev_addr attribute in netdevice to __le64 type. The dev_addr attribute is a char pointer and contains the extended address in big endian byte order. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: rx: add software checksum filtering checkAlexander Aring2014-10-291-0/+2
| | | | | | | | | This patch adds a new hardware flag which indicate that the transceiver doesn't support check for bad checksum via hardware. Also add a handling of this while receive. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: separate omit tx/rx flagsAlexander Aring2014-10-291-2/+8
| | | | | | | | | | | | | This patch splits the IEEE802154_HW_OMIT_CKSUM hardware flag into IEEE802154_HW_TX_OMIT_CKSUM and IEEE802154_HW_RX_OMIT_CKSUM. This is useful to deliver the received crc from the driver layer to the monitor interface. At the moment we can't do that without change the xmit handling. The received checksum should be visible in monitor mode only. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add support for promiscuous modeAlexander Aring2014-10-291-0/+7
| | | | | | | | This patch adds a new driver operation to bring the transceiver into promiscuous mode. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add hardware address filter flagAlexander Aring2014-10-291-0/+2
| | | | | | | | | | | | Overdue introduction for address filtering hardware flag. Furthermore we will check and set address filtering on interface up. This patch prepares that we can check if an transceiver supports address filtering option. Currently all mainline driver supports hardware address filtering. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Alan Ott <alan@signal11.us> Cc: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add IEEE802154_HW_ARET hw flagAlexander Aring2014-10-291-1/+4
| | | | | | | | | | This patch adds a new IEEE802154_HW_ARET hardware flag for indicating that the transceiver supports ARET handling. Also remove the IEEE802154_HW_FRAME_RETRIES from IEEE802154_HW_CSMA flag. Frame retries handling is part of ARET. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: remove tab after defineAlexander Aring2014-10-291-8/+8
| | | | | | | This patch removes tabs after define in hardware flags declarations. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: ops: declare channel and page as u8Alexander Aring2014-10-281-3/+2
| | | | | | | | | | The range of channel and page fits into an unsigned byte range. This patch changes the set_channel parameter definitions for channel and page to u8. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Alan Ott <alan@signal11.us> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: declare struct ieee802154_ops as constAlexander Aring2014-10-281-1/+1
| | | | | | | | | The ieee802154_ops structure should be never changed during runtime. This patch declare this structure as const to avoid a runtime change. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Alan Ott <alan@signal11.us> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: rx: use tasklet instead workqueueAlexander Aring2014-10-271-0/+1
| | | | | | | | | | | | Tasklets have much less overhead than workqueues. This patch also removes the heap allocation for the worker on receiving path. Like mac80211 we should prefer use a tasklet here instead a workqueue to getting fast out of interrupt context when ieee802154_rx_irqsafe is called by driver. Like wireless inside the tasklet context we should call netif_receive_skb instead netif_rx_ni anymore. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: tx: add comment at sync xmit callbackAlexander Aring2014-10-261-0/+4
| | | | | | | | | This patch adds a warning that xmit_sync callback is deprecated and should be removed soon. The 802.15.4 subsystem will not accept synced drivers anymore. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: tx: add support for xmit_async callbackAlexander Aring2014-10-261-3/+14
| | | | | | | | | | | This patch renames the existsing xmit callback to xmit_sync and introduces an asynchronous xmit_async function. If ieee802154_ops doesn't provide the xmit_async callback, then we have a fallback to the xmit_sync callback. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Alan Ott <alan@signal11.us> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: add netdev qeue helpersAlexander Aring2014-10-261-0/+4
| | | | | | | | | | This patch adds a new file net/mac802154/util.c which contains utility functions for drivers, etc. This file contains functions to start and stop queues for all virtual interfaces, this is useful for asynchronous handling by driver level. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: tx: remove xmit channel context switchAlexander Aring2014-10-261-2/+1
| | | | | | | | | | | | | | | | This patch removes the channel hopping feature before xmit. There are several issues to provide a real channel hopping (timing requirements, etc...). We don't have any known kernelspace protocol which really use this feature. And I don't know an real user of this feature. We simply drop this feature now. This patch removes also the hold of pib lock which isn't needed by any real driver xmit callback implementation. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: remove ieee802154_addr from driver_opsAlexander Aring2014-10-251-1/+0
| | | | | | | This driver_ops callback function is never used by any driver. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: rename ieee802154_dev to ieee802154_hwAlexander Aring2014-10-251-22/+22
| | | | | | | | | | The identical struct of the wireless stack implementation is named ieee80211_hw. This is useful to name the variable hw instead of get confusing with netdev dev variable. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Alan Ott <alan@signal11.us> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: fix typo IEEE802515 to IEEE802154Alexander Aring2014-10-251-4/+4
| | | | | | | | | This patch fixs a typo in address filter defines from IEEE802515 to IEEE802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Alan Ott <alan@signal11.us> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: mac802154: remove FSF addressAlexander Aring2014-10-251-3/+0
| | | | | | | | | This patch removes the FSF address in files which belongs to ieee802154 and mac802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Alan Ott <alan@signal11.us> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* mac802154: at86rf230: add hw flags and merge opsAlexander Aring2014-07-071-0/+19
| | | | | | | | | | | | | | This patch adds new mac802154 hw flags for transmit power, csma and listen before transmit (lbt). These flags indicates that the transceiver supports these features. If the flags are set and the driver doesn't implement the necessary functions, then ieee802154_register_device returns -ENOSYS "Function not implemented". This patch merges also all at86rf230 operations into one operations structure and set the right hw flags for the at86rf230 transceivers. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add header structs with endiannes and operationsPhoebe Buckheister2014-03-141-0/+1
| | | | | | | | | | | | | | | | This patch provides a set of structures to represent 802.15.4 MAC headers, and a set of operations to push/pull/peek these structs from skbs. We cannot simply pointer-cast the skb MAC header pointer to these structs, because 802.15.4 headers are wildly variable - depending on the first three bytes, virtually all other fields of the header may be present or not, and be present with different lengths. The new header creation/parsing routines also support 802.15.4 security headers, which are currently not supported by the mac802154 implementation of the protocol. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: enforce consistent endianness in the 802.15.4 stackPhoebe Buckheister2014-03-141-3/+2
| | | | | | | | | | | | | | Enable sparse warnings about endianness, replace the remaining fields regarding network operations without explicit endianness annotations with such that are annotated, and propagate this through the entire stack. Uses of ieee802154_addr_sa are not changed yet, this patch is only concerned with all other fields (such as address filters, operation parameters and the likes). Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add netlink APIs for smartMAC configurationPhoebe Buckheister2014-02-171-0/+12
| | | | | | | | | | | | | | | | | | | | | | | Introduce new netlink attributes for SET_PHY_ATTRS: * CSMA minimal backoff exponent * CSMA maximal backoff exponent * CSMA retry limit * frame retransmission limit The CSMA attributes shall correspond to minBE, maxBE and maxCSMABackoffs of 802.15.4, respectively. The frame retransmission shall correspond to maxFrameRetries of 802.15.4, unless given as -1: then the old behaviour of the stack shall apply. For RF2xy, the old behaviour is to not do channel sensing at all and simply send *right now*, which is not intended behaviour for most applications and actually prohibited for some channel/page combinations. For all values except frame retransmission limit, the defaults of 802.15.4 apply. Frame retransmission limits are set to -1 to indicate backward-compatible behaviour. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add support for setting CCA energy detection levelsPhoebe Buckheister2014-02-171-0/+7
| | | | | | | | | | | | | | | | | 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>
* ieee802154: add support for CCA mode in wpan physPhoebe Buckheister2014-02-171-0/+5
| | | | | | | | | | The standard describes four modes of clear channel assesment: "energy above threshold", "carrier found", and the logical and/or of these two. Support for CCA mode setting is included in the at86rf230 driver, predicated for RF212 chips. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add support for listen-before-talk in wpan_phyPhoebe Buckheister2014-02-171-0/+6
| | | | | | | | | | | Listen-before-talk is an alternative to CSMA in uncoordinated networks and prescribed by european regulations if one wants to have a device with radio duty cycles above 10% (or less in some bands). Add a phy property to enable/disable LBT in the phy, including support in the at86rf230 driver for RF212 chips. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add TX power control to wpan_phyPhoebe Buckheister2014-02-171-0/+5
| | | | | | | | | | | | | | | | Replace the current u8 transmit_power in wpan_phy with s8 transmit_power. The u8 field contained the actual tx power and a tolerance field, which no physical radio every used. Adjust sysfs entries to keep compatibility with userspace, give tolerances of +-1dB statically there. This patch only adds support for this in the at86rf230 driver and the RF212 chip. Configuration calculation for RF212 is also somewhat basic, but does the job - the RF212 datasheet gives a large table with suggested values for combinations of TX power and page/channel, if this does not work well, we might have to copy the whole table. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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