writes a hardware register when the data rate selection actually
changes. Add wi_cfg_txrate, which writes the data rate selection
regardless.
Name some fields in the wi Tx buffer which we will use for rate
adaptation.
Name the Prism "Alternate Retry Count" RID, WI_RID_ALT_RETRY_COUNT.
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.
saving bit is set in incoming frames from a station, and buffers the
outgoing frames for the station until they are polled for. This
requires support in the driver to set a bit in the TIM bitmap sent
during 802.11 beacons.
So far, support for power saving in Host AP mode is only available
for the PRISM2 chipset.
times changing of 802.11 parameters, such as nwid, the error
"tx buffer allocation failed" occured unless ifconfig down up.
Pass signal streangth and timestamp to ieee80211_input, though it is not
useful for wi driver for now.
- 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.
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.
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.
WI_RID_SCAN_APS in previous commit works for Intel Pro/Wirelss 2011
with firmware 2.51.1.
It seems that the firmware automatically updated after the card runs on
Windows 2000 with 2011_2011B_CD_3.0 in Intel web site.
The card is Type 1 CF card and it doesn't have firmware in.
So we need to download the firmware image into the card before
touching it.
XXX downloading code should be written in generic (bus independent),
but I don't have enough information for now.
Add an ugly hack, #ifdef WI_AT_BIGENDIAN_BUS_HACK, to make the wi driver
access the underlying bus in big endian byte order.
This makes it possible to use this driver (probably one of the most
interesting ones) in the pcmcia slot of a stp4020 (nell) adapter at sbus. The
sparc ports bus_space_{read,write}_* macros do not provide a way to do this
cleanly now as they ignore the bus_space_tag_t parameter.
XXX - make bus_space_{read,write}_* on sparc do the right thing.
;
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) 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.
christos