16bit write. At least in certain environments this has the effect
of the latter 8bit write of the length to be not interpreted as
the first 16 bits of the packet contents and hence the interface
working.
-Wcast-qual differently, by instead changing the signatore of those
"functions" to take a "volatile struct timeval*" instead of a
"struct timeval*". Many places, these functions are called with
&time, and time is declared as volatile in <sys/kernel.h>. This
way we can get rid of all the ugly casts which now also triggered
warnings, and caused more code to be added to work around the
problem.
Reviewed by thorpej.
so BUS_DMASYNC_POSTREAD should follow a device->memory transfer (like for
the rx packet data.
Also, it would be good to do a BUS_DMASYNC_PREWRITE to ensure that packet
data is flushed to memory before the chip tries to transmit data.
Tested on a PowerPC system.
the AC97_POWER_ANL bit.
The heuristic simply checks if AC97_REG_POWER's AC97_POWER_MIXER bit can
be set, implying the CODEC can control power to its mixer. If the bit
reads back as zero after we set it, assume ANL is reserved.
Without this patch, some CODECs (e.g. Philips UCB1400) will experience long
delays during attach and resume while the driver waits for a bit which will
never set.
Thanks to jmcneill@ for reviewing this WRT AC97 modem power control.
* Return ENXIO from ac97_attach_type if the modem codec fails to power-on.
This will prevent broken AC97 modems *cough*Conexant*cough* from giving
the impression that they will actually work.
AC97_REG_EXT_MODEM_ID instead). Also set the default audio rate to 8000;
12000 was a stupid choice since we don't actually support it in the driver
yet.
via host_flags: AC97_HOST_SKIP_AUDIO, AC97_HOST_SKIP_MODEM
* If we're dealing with a modem codec, print the extended modem
capabilities.
* Add basic AC'97 modem initialization support.
* Add some (but not all) AC'97 modem registers. More will be added later.
be toggled in WE_MEM_{ENABLE|DISABLE} when receiving or transmitting packets.
Use this to switch the toggle off for MCA cards, since it causes NIC resets
there.
Fixes PR kern/26895 by Dave Barnes.
- don't use managed mappings/backing objects for wired memory allocations.
save some resources like pv_entry. also fix (most of) PR/27030.
- simplify kernel memory management API.
- simplify pmap bootstrap of some ports.
- some related cleanups.
attimer(4) is the new body of the part of pcppi(4) that mapped the TIMER1
register to set the pitch of the bell. It was necessary to separate them
in order to have a working ACPI attachment (as the two appear as different
devices in the ACPI structures).
number of tx descriptors, number of rx descriptors, and number of mbufs.
- bump number of tx descriptors for rtl8169. 64 doesn't seem to be sufficient
when doing TSO.
- TSO support.
- fix some error handling.
- remove mysterious RTK_NTXSEGS and use more appropriate values
for bus_dmamap_create.
- if we need more than all of our tx descriptors in order to transmit a packet,
just drop it rather than retrying infinitely.
field of the IP header (ip->ip-len) indicates they should be. This handles
the case where an ethernet frame has been padded to meet the minimum ethernet
frame length or erroneously (my cisco switch unnecessarily adds 4 bytes to its
SYN). This padding will be included in the hardware checksum and may be
non-zero, thus making it incorrect.
Also, clear csum_flags when we want a s/w checksum, since we may have started
down the h/w checksum path and determined that it was not usable.
While here, clean-up a few WS nits and ifdef INET the hardware checksum code.
field of the IP header (ip->ip-len) indicates they should be. This handles
the case where an ethernet frame has been padded to meet the minimum ethernet
frame length or erroneously (my cisco switch unnecessarily adds 4 bytes to its
SYN). This padding will be included in the hardware checksum and may be
non-zero, thus making it incorrect.
Fix the work-around for the NIC bug where it skips to rx
descriptor 0. The driver used to skip to rx descriptor 1.
Hopefully this stops the out-of-order packet reception that
Charles Hannum saw.
When debugging is enabled, print rx-descriptor status flags
before printing the rx bit rate.
Add a debug message for when a beacon tx buffer reclamation.
Reset IFF_OACTIVE when we reset the transmitter.
Pass the consolidated LED state, a struct rtw_led_state,
to rtw_led_attach.
Choose the bit-rate for management frames (1Mb/s) at the
same place we choose for all other frames.
Do not use the NIC's short preamble or RTS options for
management frames. Label beacons for the NIC.
Following a Linux driver, take care not to zero arbitrary
bits in the TPPOLL register.
Use the new idiom for IBSS merges: disable transmitter,
kick the state machine.
Add a second descriptor to the beacon ring. The NIC seems
to like this much better.
with aif_get_mailbox(). Make it return uint32_t instead of 'int'.
* Add an AAC_GET_MAILBOX() macro and change AAC_GET_MAILBOXSTATUS() to use
that.
* Update the Dell PERC 2QC quirk code to use AAC_GET_MAILBOX instead of the
StrongARM-specific code. While StrongARM access is correct for that card,
it's a bad example of how to access the mailbox registers.
* Add the GETINFO command and use it to get and display the card's
supported options at a verbose level during attachment.
everything "scsi_*", since we really are talking about the SCSI command
set, ATAPI transport not withstanding. Improve the names of many structures,
and prepend "SCSI_" onto all SCSI command opcodes. Place items described
by the SCSI Primary Commands document into scsi_spc.h.
CIS MAC only on error.
(NetBSD these days tries to read the MAC address from the PCMCIA
CIS. Prism cards made by Senao set the MAC in every PCMCIA CIS to
00:02:6f:00:02:15. In a network of Senao cards, this causes MAC
duplication.)
devices found in many embedded systems. They must be polled and
debounced in software. Should be able to handle any size matrix keypad, but
only tested with a 4x4 (16-key) device attached to the TS-7200 ARM embedded
board via the DIO header.
create and queue a new one that carries the new BSSID. I mined
net80211 in FreeBSD for the solution, which is to make an
IEEE80211_S_RUN->IEEE80211_S_RUN state transition---ath_newstate
discards the old beacon packet creates a new one by calling
ath_beacon_alloc.
I tested the merge as follows. Starting at my desk on the second
floor of the building where I work:
soekris% ifconfig ath0 mediaopt adhoc ssid zzz chan 11 down
powerbook% ifconfig rtw0 mediaopt adhoc ssid zzz chan 11 up
soekris% sleep 25; ifconfig ath0 up
I raced to the elevator with my Powerbook, pressed the "Down"
button, got in, and pressed "Floor 1." At the first floor:
powerbook% ifconfig rtw0 | grep bssid
bssid 02:p:p:p:p:p chan 11
I waited 25 seconds. I pressed "Floor 2." At Floor 2, I returned to my desk.
I checked to make sure that the Soekris console read:
soekris% ath0: creating bss 02:s:s:s:s:s
ath0: bss merge 02:s:s:s:s:s -> 02:p:p:p:p:p
0:s:s:s:s:s is the Soekris' WLAN MAC. 0:p:p:p:p:p is the Powerbook's
WLAN MAC. Each created an ad hoc-mode BSSID from its WLAN MAC by
OR'ing 0x2 with the first octet.
My Powerbook created a network while the Soekris radio was off.
The Soekris radio turned on while I was in the 802.11-impervious
elevator with my Powerbook. When I returned to the second floor,
the Soekris "heard" beacons from my Powerbook as the elevator door
opened. Since the Powerbook's network was approximately 25 seconds
older than the Soekris', and since it had the same SSID (zzz) as
the Soekris', the Soekris merged with the Powerbook's network (by
setting its BSSID) as it should.
rtw_set_access, rtw_set_access1 to match.
Add a subroutine for setting WEP keys. WEP isn't quite finished,
because I have to add the WEP header to Tx packets. Implement the
SIOCS80211NWKEY ioctl for setting WEP keys.
Program the LEDs based on operating state and packet activity.
* On a Revision F RTL8180, blink LED1 at 1Hz to indicate
scan/authenticate/associate states. In the run state, turn LED1
on. In every state, blink LED1 at 5Hz to indicate non-beacon
tx/rx activity. I would like to use two LEDs, but in all my
Rev. F instances, LED0 is not wired to an LED; instead, the
first LED is wired to indicate that the card's power is on.
* On a Revision D RTL8180, program the LEDs so that LED0 indicates
Tx, and LED1 indicates Rx. The Rx LED will blink annoyingly if
there are beacons in the air, but at least the Tx LED is useful.
* Store the hardware revision in the softc to support my futile
attempt at programming LEDs for both Rev. D and Rev. F parts;
I never did get Rev. D LEDs to work right.
* Add a debug flag RTW_DEBUG_LED for the LED transitions.
Add RTW_TPPOLL_ALL, RTW_TPPOLL_SALL to start and stop, respectively,
all of the transmit rings.
In ad hoc mode, allocate a beacon and load it into the beacon ring.
Start the ring. In one trial, the card re-transmitted the beacon
ring's contents several times before stopping. More programming
and testing for ad hoc mode is necessary. I'm not setting the
beacon flag in the transmit descriptor.
Revamp the transmit section to make better use of all the transmit
rings: beacon queue, high-, low-, and medium-priority rings. Put
beacon frames on the beacon ring. All other management frames,
and data frames, go on the medium-priority ring. Power-save data
frames go on the high-priority ring. (Note that powersaving is
not implemented!) This is a work in progress.
Send all 802.11 Management frames at 1Mbps.
After we put a packet on a transmit ring, tickle the right bit in
the TPPOLL to tell RTL8180. Stop all rings on error and in rtw_stop.
Use the RF chip type, not the RTL8180 revision, to choose between
host- and MAC-controlled RF serial I/O. Now the Netgear MA521
works.
Remove bogus definition of bit RTW_TPPOLL_FSWINT.
he