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History log of /src/sys/dev/ic/wivar.h
RevisionDateAuthorComments
 1.67  05-Oct-2019  mrg remove __packed attribute from struct ieee80211_radiotap_header
and all the structures that include it.

this should not change anything while avoiding packed vs alignment
warnings from GCC 8, and potentially pessimised code generation
due to the packed marker (there are no misaligned members, just
that the per-device parts may end unaligned.)

all consumers of these members are done from the properly aligned
packet members directly, or, as a union with a 64 byte member,
also properly aligned. codegen didn't appear to change, except
for the definition of sizeof(struct driver_[rt]x_radiotap_header)
in debug info, which is not directly used anywhere.
 1.66  02-Feb-2017  nonaka branches: 1.66.14;
wlan interfaces make interrupt routine running on softint context.

see http://mail-index.netbsd.org/tech-kern/2016/12/06/msg021281.html

tested device:
* ath at pci: AR5212, AR5424
* athn at pci: AR9287
* ipw at pci: 2100BG
* iwi at pci: 2915ABG
* iwm at pci: 3165, 7260, 8260
* iwn at pci: 4945, 6235
* ral at pci: RT2560
* rtwn at pci: RTL8192CE
 1.65  15-Aug-2011  dyoung branches: 1.65.12; 1.65.30; 1.65.34; 1.65.38;
Use a recursive lock to ensure that only on thread is in wi_ioctl() at
one time. It's a recursive lock because sometimes wi_ioctl() recurses
through the network stack (ick).
 1.64  23-Nov-2010  christos split if_wi
 1.63  17-Jan-2010  pooka branches: 1.63.4;
Forward declare struct bpf_if and use that as the type for bpf_if
instead of "void *". Buys us oo times the type-safety for 0 times
the price.
(no functional change)
 1.62  12-May-2009  cegger struct device * -> device_t, no functional changes intended.
 1.61  25-Dec-2007  perry branches: 1.61.10; 1.61.24;
Convert many of the uses of __attribute__ to equivalent
__packed, __unused and __dead macros from cdefs.h
 1.60  09-Dec-2007  jmcneill branches: 1.60.2;
Merge jmcneill-pm branch.
 1.59  04-Mar-2007  christos branches: 1.59.14; 1.59.16; 1.59.22; 1.59.24; 1.59.26;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.58  18-Nov-2005  skrll branches: 1.58.26;
Adapt drivers to the new net80211(9).

Most of this is from dyoung@. Thanks!
 1.57  25-Jun-2005  dyoung branches: 1.57.2; 1.57.8;
Bug fix: fix WEP by managing keys & crypto in the style of the new
net80211. It was especially important to zero the IEEE80211_F_DROPUNENC
(discard unencrypted packets) flag in operating modes where the
firmware decrypts for us. Otherwise, the 802.11 layer discarded
all received frames. See wi_mend_flags. From FreeBSD, with
improvements by me.

For better compliance with the "net80211 way":
set sc_cnfauthmode from ic->ic_bss->ni_authmode. Enter
the RUN state through ieee80211_create_ibss instead of
ieee80211_new_state(IEEE80211_S_RUN). To sync BSSID in ad hoc
mode, use ieee80211_sta_join() instead of
ieee80211_new_state(IEEE80211_S_RUN). From FreeBSD.

Configure the firmware to obey IEEE80211_F_DROPUNENC.

As we change to state RUN in STA mode, generate a link-status
message on the routing socket with a call to ieee80211_notify_node_join()
instead of calling rt_ifmsg directly.

Run normal net80211 processing (ieee80211_newstate) on the ->RUN
transition.
 1.56  22-Jun-2005  dyoung Resolve conflicts in importation of 18-May-2005 ath(4) / net80211(9)
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch],
sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw,
awi, ipw, iwi, rtw, wi) for the new net80211(9) API.
 1.55  30-May-2005  christos - add missing const
- fix variable shadowing
- remove unneeded casts
 1.54  27-Feb-2005  perry nuke trailing whitespace
 1.53  13-Dec-2004  dyoung branches: 1.53.2; 1.53.4;
Bug fix: synchronize Transmit commands with all other commands.

Following Charles Hannum's wi(4) optimizations, there could be a
Transmit command outstanding after wi_tx_intr or wi_start returns.
The driver would blithely issue a second command [*] before the
first command was finished, taking the first command's WI_EV_CMD
indication to mean the second command had finished. The driver
would be dreadfully confused when the second command's results did
not meet its expectations (e.g., a RID mismatch error would occur).
The packet transmit section of the code would never read the
WI_EV_CMD it expected, so transmissions would cease.

This patch counts the outstanding transmit commands (there can be
only one) and, if a transmit command is outstanding at the top of
wi_cmd(), wi_cmd waits for the command to complete. If there was
a transmit command outstanding when wi_cmd begins, it calls
wi_cmd_intr() on its way out.

I have tested this on an Orinoco card. Previously, the card would
stop transmitting or the kernel would panic as desynchronization
occurred. Now it works beautifully.

[*] A second command could be issued by wi_ioctl or else by
wi_intr->wi_info_intr->wi_newstate->wi_read_xrid->wi_read_rid.
 1.52  28-Sep-2004  dyoung Simplify the BSSID synchronization code.
 1.51  07-Aug-2004  mycroft Be much more robust with RID values during attach:
* If the device returns a length too short to even contain the RID number,
flag it as not supported and return EOPNOTSUPP, rather than returning a
length of -2 and trying to use the value anyway.
* Check the returned lengths to see if we actually got anything.
* If we get no rate list, fail the attach, so we don't just blow up later.
Allow the frontend to pass in a MAC address.
 1.50  05-Aug-2004  mycroft Put unadulterated dB values in the radiotap header, not the converted dBm
values.
 1.49  22-Jul-2004  mycroft Add sc_txstart and sc_txstarted, to keep track of the current FID we want to
start and the number we've started that have not been alloced yet. Currently
sc_txstarted is constained to 0 or 1 because of the way we start the next
packet, but this will change.
 1.48  22-Jul-2004  mycroft Non-functional changes: add comments, remove a structure name.
 1.47  22-Jul-2004  mycroft Keep a count of packets written to the chip but not yet initiated. This
simplifies some logic, and is needed for later changes.
 1.46  22-Jul-2004  mycroft Change some names.
sc_txnext -> sc_txalloc
sc_txcur -> sc_txqueue
 1.45  22-Jul-2004  mycroft Keep a count of FIDs allocated, rather than storing a packet length in the
ring.
 1.44  22-Jul-2004  mycroft Rework the rate-lowering hack:
* Update sc_txpending[] when a packet is written, even before we issue the TX
command, since it may be active when we issue the TX command for the
following packet.
* Do not lower the rate in ni_txrate or id_rateidx, because these are used to
keep track of sc_txpending[], and could cause us to get "stuck" at the lower
rate.
 1.43  10-Feb-2004  dyoung branches: 1.43.2;
Disable rate-adaptation for Lucent firmware version 8.42.1, per a
bug report from Simon Burge: the firmware seems to lock up.

If rate-adaptation is disabled on a Lucent card, then do all the
rate-adaptation work *except* for writing the new transmit rate,
since I suspect that is what locks-up the firmware.
 1.42  10-Feb-2004  dyoung Factor out the initialization/reset of RSS descriptors, making
wi_rssdescs_init, wi_rssdescs_reset, which I will use to receover
when the firmware botches up the RSS descriptor index.
 1.41  07-Dec-2003  dyoung Enable RSSI-based rate-adaptation for wi(4). This enables wi(4)-based
APs to run at "full speed" where before they ran at just 1 or 2Mb/s.
The AP will adapt the data rate for each client based on packet
losses and the received signal strength.

I have also enabled rate adaptation for STA mode and for IBSS mode,
but the hardware gives us less control over the data rate in those
modes.
 1.40  07-Dec-2003  dyoung Updates to 802.11 radiotap. The _DB_ flags were used everywhere to
denote a signed dBm Rx power, so rename them to _DBM_ and change
the signedness. Add new _DB_ flags for unsigned Rx power measured
from an arbitrary reference.

Try to synchronize net80211/ieee80211_radiotap.h with my tcpdump
sources (which public tcpdump has not seen, yet) and with FreeBSD.
 1.39  16-Nov-2003  dyoung Add data-link type DLT_IEEE802_11_RADIO to wi and atw. DLT_IEEE802_11_RADIO
lets you monitor radio stats like received signal strength, which
diversity antenna was used, channel/frequency, modulation, and data
rate.
 1.38  16-Oct-2003  dyoung The upper & lower bounds on wi RSSI are completely bogus, AFAICT.
 1.37  13-Oct-2003  dyoung Switch wi(4) to the new 802.11 layer.
 1.36  06-Jul-2003  dyoung Still more consolidation of 802.11 media-handling, moving moving
common code from awi and wi into the 802.11 framework. Inspired by
Sam Leffler's patches to FreeBSD.
 1.35  06-Jul-2003  dyoung Improved RSSI->dBm conversion, especially for Lucent cards, for
which I borrowed some conversion constants from the Linux orinoco_cs
driver.
 1.34  20-May-2003  dyoung branches: 1.34.2;
Stop wi panics on card ejection in Powerbook in both the enabled
and disabled states. This should fix an x86 panic somebody reported
on icb.
 1.33  16-May-2003  dyoung IEEE80211_LOCK and WI_LOCK conceal enormous differences in locking
semantics on FreeBSD and NetBSD, so I am backing them out until
the macro set is enriched.
 1.32  13-May-2003  dyoung Begin synchronization with FreeBSD:

1 Add channel mask, transmit rate-mask arguments to wi_scan_ap.
2 Adopt the macros WI_LOCK/WI_UNLOCK for synchronization. FreeBSD
uses a different synchronization mechanism.
3 In wi_cmd, adopt constants WI_DELAY/WI_TIMEOUT for timing.
4 Pull debug messages from into wi_read_nicid from FreeBSD.
5 Bug fix: if IFF_ALLMULTI, don't filter any multicasts.
6 Count and report TX exceptions, but don't generate any additional
interrupts.
 1.31  13-May-2003  dyoung Misc changes to wi_stop. First, block interrupts in wi_stop. (From
FreeBSD.)

Fix a bug in wi_stop where ejecting from the Powerbook crashes the
system. Essentially, the patch makes sure we write *no* registers
when we are no longer attached.

Also, for consistency w/ FreeBSD, use sc_portnum throughout wi,
instead of hard-coding WI_PORT0 .
 1.30  27-Mar-2003  dyoung Cosmetic: move sc_reset closer to its siblings sc_disable and sc_enable.
 1.29  27-Mar-2003  dyoung Introduced sc_reset to wi_softc. The bus-specific front-end gets
to fill this.
 1.28  09-Jan-2003  dyoung wi_start: write an mbuf chain to the driver using wi_mwrite_bap,
which is safer than the loop there used to be here.

wi_mwrite_bap: if wi_write_bap fails, don't keep on going: this
way you avoid writing garbage to the radio. First time you see
an odd-length mbuf, copy the remainder of the chain to sc_txbuf
and from there to the MAC. This way, you do not read an mbuf past
the end of its data (occasionally you will cross a page doing
that!) and you avoid expensive, excess seeks in the radio's own
buffer chain.

wi_rx_intr: clamp the frame length told to us by the driver to the
most bytes we can fit in our mbuf cluster.

I am still getting e-mails from my testers telling me how much
better this makes things.
 1.27  01-Jan-2003  dyoung A Prism firmware participating in an IBSS network will not send a
LINK_STAT notification for every change of BSSID, so the firmware's
BSSID and the driver's BSSID will get out of sync. This has two
bad affects. First, because the 802.11 framework filters received
packets based on BSSID, many packets can be dropped before the
driver adopts the firmware's BSSID. Second, ifconfig's tells a
misleading BSSID to the operator.

This problem is most apparent in networks where every station does
not hear every other. I reproduce these conditions in an office by
removing/replacing the antennas on my 802.11 cards.

As a solution, in IBSS mode, the driver will ask the firmware for
the BSSID every five seconds. Also, whenever the driver receives
a frame carrying a different BSSID than the driver's BSSID, then
the driver asks the firmware for the BSSID before handing the frame
to ieee80211_input.
 1.26  27-Dec-2002  dyoung The RID for the RSSI->dBm adjustment is not supported by Prism
station firmware version <= 1.1.1.
 1.25  18-Nov-2002  dyoung Only Prism is known to support WI_RID_FRAG_THRESH.
 1.24  16-Nov-2002  dyoung Support two new RIDs.

WI_RID_DBM_ADJUST: In preparation for capturing Prism packets
containing received signal strength indications (RSSI), read the
constant for conversion from RSSI to dBm (decibels relative to
a milliwatt).

WI_RID_FRAG_THRESH: Get/set the packet fragmentation threshold
on Lucent/Prism.
 1.23  04-Oct-2002  onoe Handle of AP_IN_RANGE/AP_OUT_RANGE, to fix a problem once the station
is out of ragen, it never comes up again.
For HostAP, prohibit sending DATA frame to an unassociated but authenticated
station.
 1.22  30-Sep-2002  onoe old lucent adhoc-demo mode (adhoc,flag0 or wiconfig -p 3) wasn't handled
correctly. To avoid massive extra code in each driver, now if_iee80211subr.c
also handles non-standard old lucent adhoc-demo mode.
This also fixes PR 14227.
 1.21  30-Sep-2002  onoe Jumbo commit for wi driver.
- Eliminate wi_hostap.c since most of the code are duplicated with
net/if_ieee80211subr.c
- Station for Infrastructure network and IBSS also use service functions
as much as possible to be consistent with other wireless drivers.
Now WEP works for station/ibss/hostap.
 1.20  30-Sep-2002  onoe Nuke unneeded member sc_ifp and use #define sc_if instead,
to prepare jumbo commit for wi.c
 1.19  23-Sep-2002  thorpej Jumbo patch, from David Young <dyoung@ojctech.com>, with small tweaks
by me:
* Speed up reading/writing buffers from the hardware by avoiding
slow forward seeks. In preparation to use the optimization, do
not read overlapping bytes. This is currently disabled, but can
be enabled with OPTIMIZE_RW_DATA.
* Hand 802.11 and Prism-specific frames to BPF. User can watch these
frames by specifying an alternate DLT to e.g. tcpdump(8).
* Add support for SIOC[SG]80211BSSID and SIOC[SG]80211CHANNEL.
* Issue join requests and track join/create state through link-status
notifications.
* Split wi_rxeof into separate routines for receiving Ethernet II,
802.11 data, and 802.11 management frames.
* Bug fix: Account for aligning m_data to a word boundary in the Rx
buffer size check.
* Bug fix: Check for LLC/SNAP even if the firmware tells us the frame
is Ethernet II, as the firmware sometimes gets this wrong.
* Process as many events as possible when we get an interrupt, using
a simple heuristic to avoid reprocessing an event (which can have
bad side-effects). Clamp the time spent in the interrupt handler
to 4ms.
* Redo the timeout loops to be consistent and less prone to error.
* Add delays to timeout loops which were missing them, so that a
fast CPU won't win the race.
* Borrow some timeout loop values from the linux-wlan-ng driver,
which seems to reflect a high level of clue (due to direct support
from Intersil).
* Get rid of silly wi_read_data(..., len + 2) idiom; simply round up
in wi_read_data() and wi_write_data(). Also, protect against a
length of 0.
* Name some frequently-used constants. Correct spelling. Other style nits.
* Bug fix: On Prism, set Create IBSS register to 0 *always*. The meaning
of Create IBSS == 1 is join an IBSS or *ESS*, and we do not want to
join an ESS, because that would put us in an inconsistent state. 0
is the right value for Prism.
* Bug fix: Clean up state at the top of wi_init(), in the event that
we don't reach the bottom.
* Simplify wi_start() by always providing an RFC1042-encoded 802.11
frame to the firmware.
* Larval powersave support for HostAP mode, enabled by WI_HOSTAP_POWERSAVE.
* Bug fix: Call wi_stop() from wi_shutdown().
* Bug fix: sync media options with HostAP mode in wi_sync_media().
* In wi_media_status(), inquire firmware for current media state if
media == auto. From FreeBSD.
* Clean up the way buffer lengths are computed by using pointer
arithmetic rather than magic constants.
* Swap the order of comparisons in addr_cmp() for speed.
* Bug fix: Send ReAssoc Response instead of Assoc Response to a
ReAssoc Request.
* Bug fix: Copy SSID using the correct size.
* Give more meaningful names to offsets in a wi_frame.
* Bug fix: Assign the right values to the named constants for
Rx frame encoding.
* Get rid of useless SNAP constants.
 1.18  11-Aug-2002  thorpej Remove an unused member from the softc.
 1.17  11-Aug-2002  thorpej Snapshot of work-in-progress: Add AP support for Prism2-based boards.
WEP for APs is not yet implemented, but without WEP, this works well
enough for my laptop to associate with an AP running this code.

Adapted from OpenBSD.
 1.16  11-Aug-2002  thorpej * Add "wi_flags" to the softc to indicate capabilities of the card. Fill
in this info based on firmware type and version. Replace "wi_has_wep"
with a flag.
* For cards which support IBSS, add "ibss" has a media option.
* For cards which support CREATE_IBSS, add "ibss-master" as a media
option.
* Use the "ibss" and "ibss-master" media options to determine if
we should go into IBSS mode and/or create the IBSS.
* Internally convert between the generic WI_PORTTYPE_IBSS and the
value the firmware wants to use for IBSS.
* When setting the IBSS name, if a desired-SSID is set, and we're
an ibss-master, write the desired-SSID into the own-SSID slot.
This ensures that "ifconfig wi0 nwid FOO" will do the expected
thing.
* Only set the roaming mode if the card supports roaming.

From OpenBSD.
 1.15  11-Aug-2002  thorpej Read supported rates from the card and report them. Only add
media types if that rate is supported.

Adapted from OpenBSD.
 1.14  05-Apr-2002  ichiro branches: 1.14.2;
fix minor bugs for lucent cards. (point out from Warner Losh)
 1.13  04-Apr-2002  jdolecek move wi_pci_reset() from ic/wi.c to pci/if_wi_pci.c, where is belongs
 1.12  04-Apr-2002  ichiro using table driven for Prism2 family IDs/Names.
 1.11  30-Mar-2002  ichiro added sc_pri_firmware_ver, and print Primary/Station firmware versions.
cosmetic change.
 1.10  27-Mar-2002  onoe Fix to work Symbol firmware card, which cannot be initialized more than once.
Tested with 3Com 3CRWE737A and Intel Pro/Wireless 2011.
 1.9  25-Mar-2002  dbj changes from Warner Losh to read firmware version for non prism2 cards
 1.8  21-Jan-2002  ichiro "Association Faild" was added to "Link Stat" messages.
;
Implement wi_scan into wi.c.
forces if_wi to initiate one round of access point scan.
This code was written by jrb@cs.pdx.edu, modified and bug-fixed by ichiro@netbsd.org
 1.7  05-Jan-2002  explorer revert changes I made a long time ago. This should undo the changes which are causing problems on some non-x86 platforms. I'll probsably redo some of these changes, but after the next release branch.
 1.6  13-Oct-2001  ichiro Add Intersil Prism2.5 Mini-PCI wavelan.
 1.5  22-Sep-2001  explorer Implement two major items:

(1) Add an IOCTL to tell the Lucent based cards how often to
do an access point scan. These results are returned by
calling another IOCTL to get the most recent scan data.

This function works with prism2 cards as well, but the
data is returned in a different format, or perhaps it is
data only for the closest access point.

(2) For prism2 cards, add the ability to put it into LAN monitor
mode, where (via BPF) all packets can be received. This
mode works best with "wiconfig wi0 -p 3 -f ?" to put the
card into pseudo-IBSS mode (to keep it from channel-hopping
and scanning for access points) and to set the frequency of
the AP you wish to monitor.

The returned data has a partial wi_frame header (down to the
wi_dat_len field) followed by the raw data of the packet.
I have and will put up on http://www.flame.org/NetBSD/wireless/
some simple utilities which do some perhaps interesting things,
like scan for access points, capture packets, etc.
 1.4  15-May-2001  ichiro branches: 1.4.2; 1.4.4; 1.4.6;
getting prism2 firm ver routine to wi_get_id().
if firm ver is more than 0.8c3, promiscuous mode is off.

typo WI_RID_STA_IDENEITY -> WI_RID_STA_IDENTITY
 1.3  15-May-2001  ichiro It enabled it to control roaming mode and authentication mode.
Roaming mode can change value into 'firm mode' and disable.
Authentication mode can change into 'Open System authentication'
and 'Shared Key Authentication' with Prism2 chip.

wi_get_id() was introduced in order that chip might judge automatically
whether it is Prism2 chip. Therefore, a pp_prism2 entry in
"struct wi_pcmcia_product" became unnecessary.
 1.2  08-May-2001  ichiro change promisc mode in case of SIOCSIFFLAGS of wi_ioctl.
Fix indentation.
 1.1  06-May-2001  ichiro divided into PCMCIA attachment and common code of wi.
since if_wi_ieee.h does not depend for pcmcia,
sys/dev/pcmcia/if_wi_ieee.h was moved to sys/dev/ic/wi_ieee.h .
 1.4.6.1  01-Oct-2001  fvdl Catch up with -current.
 1.4.4.5  10-Oct-2002  jdolecek sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work
 1.4.4.4  06-Sep-2002  jdolecek sync kqueue branch with HEAD
 1.4.4.3  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.4.4.2  11-Feb-2002  jdolecek Sync w/ -current.
 1.4.4.1  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.4.2.18  15-Jan-2003  thorpej Sync with HEAD.
 1.4.2.17  03-Jan-2003  thorpej Sync with HEAD.
 1.4.2.16  29-Dec-2002  thorpej Sync with HEAD.
 1.4.2.15  11-Dec-2002  thorpej Sync with HEAD.
 1.4.2.14  18-Oct-2002  nathanw Catch up to -current.
 1.4.2.13  23-Sep-2002  thorpej Sync with HEAD.
 1.4.2.12  13-Aug-2002  nathanw Catch up to -current.
 1.4.2.11  17-Apr-2002  nathanw Catch up to -current.
 1.4.2.10  01-Apr-2002  nathanw Catch up to -current.
(CVS: It's not just a program. It's an adventure!)
 1.4.2.9  28-Feb-2002  nathanw Catch up to -current.
 1.4.2.8  11-Jan-2002  nathanw More catchup.
 1.4.2.7  09-Jan-2002  nathanw Catch up to -current. No, really, for sure this time.
 1.4.2.6  08-Jan-2002  nathanw Catch up to -current.
 1.4.2.5  15-Nov-2001  thorpej Merge from -current; compilation fix (pcmcia front-end out of sync
with bus-independent part .. merge error, I guess).
 1.4.2.4  08-Oct-2001  nathanw Catch up to -current.
 1.4.2.3  26-Sep-2001  nathanw Catch up to -current.
Again.
 1.4.2.2  21-Jun-2001  nathanw Catch up to -current.
 1.4.2.1  15-May-2001  nathanw file wivar.h was added on branch nathanw_sa on 2001-06-21 20:03:32 +0000
 1.14.2.1  29-Aug-2002  gehenna catch up with -current.
 1.34.2.7  11-Dec-2005  christos Sync with head.
 1.34.2.6  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.34.2.5  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.34.2.4  18-Dec-2004  skrll Sync with HEAD.
 1.34.2.3  19-Oct-2004  skrll Sync with HEAD
 1.34.2.2  12-Aug-2004  skrll Sync with HEAD.
 1.34.2.1  03-Aug-2004  skrll Sync with HEAD
 1.43.2.1  23-Jul-2004  he Pull up revisions 1.44-1.49 (requested by mycroft in ticket #700):
Many bug fixes and performance fixes for the wi(4) driver,
as well as changes paving the way for further performance
improvements.
 1.53.4.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.53.2.1  29-Apr-2005  kent sync with -current
 1.57.8.1  22-Nov-2005  yamt sync with head.
 1.57.2.3  21-Jan-2008  yamt sync with head
 1.57.2.2  03-Sep-2007  yamt sync with head.
 1.57.2.1  21-Jun-2006  yamt sync with head.
 1.58.26.1  12-Mar-2007  rmind Sync with HEAD.
 1.59.26.1  11-Dec-2007  yamt sync with head.
 1.59.24.1  26-Dec-2007  ad Sync with head.
 1.59.22.1  18-Feb-2008  mjf Sync with HEAD.
 1.59.16.1  09-Jan-2008  matt sync with HEAD
 1.59.14.1  04-Sep-2007  joerg Convert wi(4) to jmcneill-pm style power management.
 1.60.2.1  02-Jan-2008  bouyer Sync with HEAD
 1.61.24.1  13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.61.10.2  11-Mar-2010  yamt sync with head
 1.61.10.1  16-May-2009  yamt sync with head
 1.63.4.1  05-Mar-2011  rmind sync with head
 1.65.38.1  21-Apr-2017  bouyer Sync with HEAD
 1.65.34.1  20-Mar-2017  pgoyette Sync with HEAD
 1.65.30.1  05-Feb-2017  skrll Sync with HEAD
 1.65.12.1  03-Dec-2017  jdolecek update from HEAD
 1.66.14.1  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411

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