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path: root/drivers/net/wireless/b43/phy_lp.c
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2011-07-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
2011-07-07Update my e-mail addressMichael Büsch
Signed-off-by: Michael Buesch <m@bues.ch> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-06-01b43: LP-PHY: use new pointers path to access ssb_deviceRafał Miłecki
LP-PHY code is SSB specific, add check for bus type. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01b43: bus: abstract board infoRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01b43: bus: abstract chip infoRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-01b43: bus: abstract SPROMRafał Miłecki
SPROM is another frequently used struct. We decided to share SPROM struct between ssb na bcma as long as we will not need any hacks. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-16b43: rename b43_wldev's field with ssb_device to sdevRafał Miłecki
We free name "dev" for something generic (like dev abstraction layer). Additionaly code is cleaner now, especially magic dev->dev-dev chains. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-21b43: silence most sparse warningsJohn W. Linville
CHECK drivers/net/wireless/b43/main.c drivers/net/wireless/b43/main.c:111:5: warning: symbol 'b43_modparam_pio' was not declared. Should it be static? CHECK drivers/net/wireless/b43/phy_g.c drivers/net/wireless/b43/phy_g.c:975:56: warning: cast truncates bits from constant value (ffff7fff becomes 7fff) CHECK drivers/net/wireless/b43/phy_lp.c drivers/net/wireless/b43/phy_lp.c:2701:6: warning: symbol 'b43_lpphy_op_switch_analog' was not declared. Should it be static? drivers/net/wireless/b43/phy_lp.c:1148:30: warning: cast truncates bits from constant value (ffff1fff becomes 1fff) drivers/net/wireless/b43/phy_lp.c:1525:30: warning: cast truncates bits from constant value (ffff1fff becomes 1fff) drivers/net/wireless/b43/phy_lp.c:1529:30: warning: cast truncates bits from constant value (ffff1fff becomes 1fff) CHECK drivers/net/wireless/b43/wa.c drivers/net/wireless/b43/wa.c:385:60: warning: cast truncates bits from constant value (ffff00ff becomes ff) drivers/net/wireless/b43/wa.c:403:55: warning: cast truncates bits from constant value (ffff00ff becomes ff) drivers/net/wireless/b43/wa.c:405:55: warning: cast truncates bits from constant value (ffff00ff becomes ff) drivers/net/wireless/b43/wa.c:415:71: warning: cast truncates bits from constant value (ffff0fff becomes fff) AFAICT, none of these amount to real bugs. But this reduces warning spam from sparse w/o significantly affecting readability of the code (IMHO). Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-01-25b43: update cordic code to match current specsRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-25b43: make cordic common (LP-PHY and N-PHY need it)Rafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-15b43: use standard fls for finding the most significant bitRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-01-12b43: LP-PHY: note and explain specs inconsistencyRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30b43: LP-PHY: Begin implementing calibration & software RFKILL supportGábor Stefanik
This implements the following calibration functions: -Set TX IQCC -Set TX Power by Index -PR41573 workaround (incomplete, needs PHY reset) -Calc RX IQ Comp -PHY Cordic -Run Samples -Start/Stop TX Tone -part of PAPD Cal TX Power -RX I/Q Calibration -The basic structure of the periodic calibration wrapper Software RFKILL (required by calibration) is also implemented in this round. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07b43: Comment unused functions lpphy_restore_dig_flt_state and ↵Jaswinder Singh Rajput
lpphy_disable_rx_gain_override Commenting unused functions lpphy_restore_dig_flt_state and lpphy_disable_rx_gain_override, may be we need these functions in future. This also fixed following compilation warnings : CC [M] drivers/net/wireless/b43/phy_lp.o drivers/net/wireless/b43/phy_lp.c:383: warning: ‘lpphy_restore_dig_flt_state’ defined but not used drivers/net/wireless/b43/phy_lp.c:891: warning: ‘lpphy_disable_rx_gain_override’ defined but not used Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-09-23b43: Add LP PHY Analog Switch SupportThomas Ilnseher
The current verison of b43 uses "b43_phyop_switch_analog_generic" for A, G and LP phys. According to the spec, this is the wrong behaviour for the LP PHY (see: http://bcm-v4.sipsolutions.net/802.11/PHY/Anacore ) While no problems on the x86 plattform where seen, this leads to a crash on the BCM5354 SoC (MIPS 32 LE plattform). This patch implements the analog switch for LP PHYs according to the specs. It fixes the crash signed-off-by: Thomas Ilnseher <illth@gmx.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-31b43: Add myself to module authors & to LP-PHY file copyright noticesGábor Stefanik
Also mark the LP-PHY driver "802.11a/g" instead of "802.11g", as LP-PHY is capable of both 2GHz and 5GHz operation. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28b43: Implement antenna diversity support for LP-PHYGábor Stefanik
The A/G-PHY changes are fallout fixes from the enum change, which in turn allows the LP-PHY code to be much simpler. The antenna_to_phyctl change is a fix for a potential existing bug that this patch may otherwise trigger. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28b43: LP-PHY: Revert to the original PHY register write routineGábor Stefanik
After some discussion on IRC about the PHY register write change, I am not sure anymore if this is the right thing to do. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28ssb: Implement PMU LDO control and use it in b43Gábor Stefanik
Implement the "PMU LDO set voltage" and "PMU LDO PA ref enable" functions, and use them during LP-PHY baseband init in b43. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28b43: Fix and update LP-PHY codeGábor Stefanik
-Fix a few nasty typos (b43_phy_* operations instead of b43_radio_*) in the channel tune routines. -Fix some typos & spec errors found by MMIO tracing. -Optimize b43_phy_write & b43_phy_mask/set/maskset to use only the minimal number of MMIO accesses. (Write is possible using a single 32-bit MMIO write, while set/mask/maskset can be done in 3 16-bit MMIOs). -Set the default channel back to 1, as the bug forcing us to use channel 7 is now fixed. With this, the device comes up, scans, associates, transmits, receives, monitors and injects on all channels - in other words, it's fully functional. Sensitivity and TX power are still sub-optimal, due to the lack of calibration (that's next on my list). Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28b43: LP-PHY: Fix and simplify Qdiv roundupGábor Stefanik
The Qdiv roundup routine is essentially a fixed-point division algorithm, using only integer math. However, the version in the specs had a major error that has been recently fixed (a missing quotient++). Replace Qdiv roundup with a rewritten, simplified version. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-28b43: LP-PHY: Fix a few typos in the RC calibration codeGábor Stefanik
The RC calibration code has some typos - fix them. Also, make the default channel 7, as channel 1 is still broken (only channels 7 and 8, and occasionally 9 work). Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Implement spec updates and remove resolved FIXMEsGábor Stefanik
Larry has started re-checking all current routines against a new version of the Broadcom MIPS driver. This patch implements the first round of changes he documented on the specs wiki. Also remove a few FIXMEs regarding missing initial values for variables with dynamic initial values where reading the values has been implemented. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Two small spec updatesGábor Stefanik
The specs are beginning to support rev3 LP-PHYs - implement one of the changes needed for rev3 support. Also, in the new MIPS driver, the "Japan TX filter" was renamed to "analog TX filter init" - however, calling it "init" is confusing, so name it "set analog filter", with a comment for easier future identification. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Fix setting TX power control mode during RC calibrationGábor Stefanik
Call set_tx_power_control with a LPPHY_TXPCTL rather than an LPPHY_TX_PWR_CTL_CMD_MODE. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Fix reading old mode in the set TX power control routineGábor Stefanik
Check the mode the hardware is in, not the mode we used the last time. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Update B2062 radio init with recent spec changesGábor Stefanik
The spec for initializing the B2062 radio have changed recently, update the code to match the changes. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Fix a bug in the B2062 channel tune pathGábor Stefanik
I missed the "+16" part of the instruction in the specs. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Update code for spec fixes, and fix a few typosGábor Stefanik
A few typos have been discovered in both the specs and the code. This patch fixes them. Also use lpphy_op_switch_channel consistently, and make all users of it print its return value for easier debugging. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Fix a spec error in the B2062 channel switch routineGábor Stefanik
The channel switch routine had a whole instruction missing. Add it. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Update baseband init for recent spec changesGábor Stefanik
The spec had some nasty typos, and a large part of the rev0/1 BB init procedure was also missing. Fix these. Also make the init-time channel switch debuggable. (The change from -EINVAL to -EIO is simply to make it possible to distinguish the PLL charge pump error from a channel-not-found error.) Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Fix another TX power control abuseGábor Stefanik
This should fix the remaining WARN_ON. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Update TX gain override for a spec typo fixGábor Stefanik
Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Don't adjust gain table for rev2+ when setting channelGábor Stefanik
Rev2+ never needs to have gain tables adjusted according to the spec. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Implement channel switching for rev0/1/B2062 radioGábor Stefanik
-Move pdiv from lpphy_2062_init to struct b43_phy_lp. -Add channel table for the B2062 radio. -Add code for tuning the B2062 radio to channel. -Add error handling to op_switch_channel, and use it for both radios. Rev0/1/B2062 will now hopefully show some signs of life, though it won't work at full performance, as calibration is still missing. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Implement channel switching for rev2+/B2063 radioGábor Stefanik
Rev.2+/B2063 will now hopefully show some signs of life, though it won't work at full performance, as calibration is still missing. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20b43: LP-PHY: Initialize TX power controlGábor Stefanik
The HW TX power control init still needs work. The SW init is complete according to the specs. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: Implement RC calibration for rev.0/1 LP-PHYsGábor Stefanik
Also implement get/set BB mult, get/set TX gain, set RX gain, disable/restore CRS, run/stop DDFS, RX IQ est and QDIV roundup in the process. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Acked-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: Implement RC calibration for rev.2+ LP PHYsGábor Stefanik
Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: LP-PHY: Implement reading band SPROMGábor Stefanik
Some of the new variables in b43_phy_lp appear to be dead code in the vendor driver; they will be removed if they remain unused when LP-PHY implementation is finished. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: Fix a typo in the sync_stx routineGábor Stefanik
I completely missed the "one's complement" instruction from the specs. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: Update LP-PHY rev2+ baseband init to match the specsGábor Stefanik
The rev2+ BB init spec has changed behind us, and thus the code is no longer up to date. Update the code to match the current specs. Also implement save/restore dig filt state, as required by the new specification. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: Implement LP-PHY baseband table initializationGábor Stefanik
Implement LP-PHY baseband table init for all revisions. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: LP-PHY: Implement STX synchronizationGábor Stefanik
The v2+ radio init (B2063) is now complete, modulo BCM4325 support. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: Typo fixes & minor cleanupGábor Stefanik
Make use of HostFlags defines in the LP-PHY code. Fix fallout from the IEEE80211_IF_TYPE to NL80211_IFTYPE change. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14b43: Add LP 2063 radio initGábor Stefanik
Add B2063 radio init code and tables for LP-PHY. Rename structures common between B2062 and B2063 to B206X. Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04b43: implement baseband init for LP-PHY <= rev1Gábor Stefanik
Implement baseband init for rev.0 and rev.1 LP PHYs. Convert boardflags_hi values to defines. Implement b43_phy_copy for easier copying between registers, as needed by LP-PHY init. Signed-off-by: Gábor Stefanik<netrolller.3d@gmail.com> Cc: Michael Buesch<mb@bu3sch.de> Cc: Larry Finger<larry.finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-03rfkill: rewriteJohannes Berg
This patch completely rewrites the rfkill core to address the following deficiencies: * all rfkill drivers need to implement polling where necessary rather than having one central implementation * updating the rfkill state cannot be done from arbitrary contexts, forcing drivers to use schedule_work and requiring lots of code * rfkill drivers need to keep track of soft/hard blocked internally -- the core should do this * the rfkill API has many unexpected quirks, for example being asymmetric wrt. alloc/free and register/unregister * rfkill can call back into a driver from within a function the driver called -- this is prone to deadlocks and generally should be avoided * rfkill-input pointlessly is a separate module * drivers need to #ifdef rfkill functions (unless they want to depend on or select RFKILL) -- rfkill should provide inlines that do nothing if it isn't compiled in * the rfkill structure is not opaque -- drivers need to initialise it correctly (lots of sanity checking code required) -- instead force drivers to pass the right variables to rfkill_alloc() * the documentation is hard to read because it always assumes the reader is completely clueless and contains way TOO MANY CAPS * the rfkill code needlessly uses a lot of locks and atomic operations in locked sections * fix LED trigger to actually change the LED when the radio state changes -- this wasn't done before Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> [thinkpad] Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-11b43: Add parts of LP-PHY TX power controlMichael Buesch
This adds the initial parts of the LP-PHY TX power control. This also adds helper functions for bulk access of LP tables. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>