The register definition for retry configuration on AR5212 was wrong, and simply
copied over from AR5210. Update the register definitions from the documentation.

Let the short and long retries be configured from mac80211 and use the standard
values of 7 and 4 by default. Also we need to make sure we don't export more
retries than we are configured for to mac80211 (and the rate module) in
hw->max_rate_tries.

Also clean up the code by removing unused defines and variables and drop the
different values for "station retries" - if these need to be different it can
be handled tru ah_retry_long/short.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Now that rx and tx dumps go through the tracing infrastructure,
we no longer need to keep these routines around.
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NBruno Randolf <br1@einfach.org>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This adds a few tracepoints to ath5k driver transmit and
receive callbacks in order to record packet traffic.
We record the entire packet in the trace buffer so that
the data can be extracted with trace-cmd and external
plugins.

Compared to the previous debugging calls, this approach
removes an out-of-line function call from the tx and rx
paths in the compiled-in-but-disabled case, while
improving the ability to process the logged data.

A new option, CONFIG_ATH5K_TRACER, is added so that one
may disable the tracepoints completely.
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NBruno Randolf <br1@einfach.org>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This enables 4.9GHz frequencies in ath5k if they are allowed as indicated by
the regulatory domain code. Currently this is MKK9_MKKC (0xfe).
Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Shorten some lines and make code more readable.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove useless test_bit - it's not going to happen because of the way this
function is called only when that bit is set.

And fix some whitespace.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Simplify confusing code and get rid of an unnecessary variable.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove sc->curband because the band is already stored in the current channel.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

sc->curmode is set but never used. Remove it and the helper function. Also the
ath5k_rate_update which is refered to in the comment does not exist (any more?)
so we don't need to setup the band in that place.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

They are unused in ath5k and a more detailled definition is in
ath/regd_common.h.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add the 802.11j (20MHz channel width) channels to the allowed channels. This
still does not enable 802.11j in ath5k since these frequencies are out of the
configured range. A later patch will deal with that.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Rename ath5k_copy_channels() to ath5k_setup_channels() - nothing is copied
here.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use mac80211 channel mapping function instead of own homegrown version.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NBob Copeland <me@bobcopeland.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Eeprom read functions are of bool type and not int.
Signed-off-by: NWojciech Dubowik <Wojciech.Dubowik@neratec.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

ath5k_eeprom_mode_from_channel() returns -1 on error but we're storing
the result in "ee_mode" which is an unsigned char.  This breaks the
error handling.  This patch makes "ee_mode" an int.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

ath5k_reset is called from process context and takes the cc_lock
with plain spin_lock(), but cc_lock can also be taken from tasklets
in softirq context.  Thus we need to at least use spin_lock_bh.

This fixes the following lockdep warning:

[   19.967874] sky2 0000:01:00.0: eth0: enabling interface
[   19.982761] ieee80211 phy0: device now idle
[   20.904809] NET: Registered protocol family 17
[   21.243857] ieee80211 phy0: device no longer idle - scanning
[   21.404343]
[   21.404346] =================================
[   21.404450] [ INFO: inconsistent lock state ]
[   21.404518] 2.6.37-rc7-wl+ #242
[   21.404582] ---------------------------------
[   21.404650] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[   21.404721] kworker/u:4/982 [HC0[0]:SC1[3]:HE1:SE0] takes:
[   21.404792]  (&(&common->cc_lock)->rlock){+.?...}, at: [<f8115780>] ath5k_ani_calibration+0x29/0x5d9 [ath5k]
[   21.405011] {SOFTIRQ-ON-W} state was registered at:
[   21.405011]   [<c105cadd>] __lock_acquire+0x62f/0x13c1
[   21.405011]   [<c105d944>] lock_acquire+0xd5/0xf1
[   21.405011]   [<c12c978d>] _raw_spin_lock+0x45/0x72
[   21.405011]   [<f8111533>] ath5k_reset+0x2c0/0x349 [ath5k]
[   21.405011]   [<f8111a7a>] ath5k_start+0xb8/0x139 [ath5k]
[   21.405011]   [<f849c714>] ieee80211_do_open+0x13f/0x819 [mac80211]
[   21.405011]   [<f849ce51>] ieee80211_open+0x63/0x66 [mac80211]
[   21.405011]   [<c1258b2e>] __dev_open+0x8d/0xb6
[   21.405011]   [<c1255c64>] __dev_change_flags+0x9d/0x114
[   21.405011]   [<c1258a75>] dev_change_flags+0x18/0x44
[   21.405011]   [<c1262990>] do_setlink+0x23f/0x521
[   21.405011]   [<c1262d58>] rtnl_setlink+0xe6/0xea
[   21.405011]   [<c126347c>] rtnetlink_rcv_msg+0x18a/0x1a0
[   21.405011]   [<c126d5f0>] netlink_rcv_skb+0x35/0x7b
[   21.405011]   [<c12632eb>] rtnetlink_rcv+0x20/0x27
[   21.405011]   [<c126d370>] netlink_unicast+0x1bb/0x21e
[   21.405011]   [<c126db21>] netlink_sendmsg+0x23b/0x288
[   21.405011]   [<c124823c>] sock_sendmsg+0xac/0xc4
[   21.405011]   [<c1248680>] sys_sendmsg+0x152/0x1a2
[   21.405011]   [<c1249b0d>] sys_socketcall+0x214/0x275
[   21.405011]   [<c10029d0>] sysenter_do_call+0x12/0x36
[   21.405011] irq event stamp: 138032
[   21.405011] hardirqs last  enabled at (138032): [<c12ca252>] _raw_spin_unlock_irqrestore+0x3b/0x5e
[   21.405011] hardirqs last disabled at (138031): [<c12c98cc>] _raw_spin_lock_irqsave+0x18/0x7e
[   21.405011] softirqs last  enabled at (138024): [<f84a570e>] ieee80211_tx_skb+0x47/0x49 [mac80211]
[   21.405011] softirqs last disabled at (138027): [<c100452b>] do_softirq+0x63/0xb4
[   21.405011]
[   21.405011] other info that might help us debug this:
[   21.405011] 3 locks held by kworker/u:4/982:
[   21.405011]  #0:  (name){+.+.+.}, at: [<c1046158>] process_one_work+0x1b8/0x41b
[   21.405011]  #1:  ((&(&local->scan_work)->work)){+.+.+.}, at: [<c1046158>] process_one_work+0x1b8/0x41b
[   21.405011]  #2:  (&local->mtx){+.+.+.}, at: [<f84920fb>] ieee80211_scan_work+0x32/0x4a4 [mac80211]
[   21.405011]
[   21.405011] stack backtrace:
[   21.405011] Pid: 982, comm: kworker/u:4 Not tainted 2.6.37-rc7-wl+ #242
[   21.405011] Call Trace:
[   21.405011]  [<c12c6e68>] ? printk+0x1d/0x25
[   21.405011]  [<c105a742>] print_usage_bug+0x181/0x18b
[   21.405011]  [<c105b196>] ? check_usage_forwards+0x0/0xb6
[   21.405011]  [<c105a9ec>] mark_lock+0x2a0/0x4aa
[   21.405011]  [<c1059f6d>] ? trace_hardirqs_off+0xb/0xd
[   21.405011]  [<c105ca68>] __lock_acquire+0x5ba/0x13c1
[   21.405011]  [<c1059eed>] ? trace_hardirqs_off_caller+0x18/0x8d
[   21.405011]  [<c1059f6d>] ? trace_hardirqs_off+0xb/0xd
[   21.405011]  [<c1050411>] ? local_clock+0x2c/0x4f
[   21.405011]  [<c1059e00>] ? save_trace+0x2/0xa0
[   21.405011]  [<c105ac39>] ? mark_held_locks+0x43/0x5b
[   21.405011]  [<c12ca252>] ? _raw_spin_unlock_irqrestore+0x3b/0x5e
[   21.405011]  [<f8115780>] ? ath5k_ani_calibration+0x29/0x5d9 [ath5k]
[   21.405011]  [<c105d944>] lock_acquire+0xd5/0xf1
[   21.405011]  [<f8115780>] ? ath5k_ani_calibration+0x29/0x5d9 [ath5k]
[   21.405011]  [<c12c9b1a>] _raw_spin_lock_bh+0x4a/0x77
[   21.405011]  [<f8115780>] ? ath5k_ani_calibration+0x29/0x5d9 [ath5k]
[   21.405011]  [<f8115780>] ath5k_ani_calibration+0x29/0x5d9 [ath5k]
[   21.405011]  [<c105ac39>] ? mark_held_locks+0x43/0x5b
[   21.405011]  [<f8113496>] ath5k_tasklet_ani+0x1d/0x27 [ath5k]
[   21.405011]  [<c1037304>] tasklet_action+0x96/0x137
[   21.405011]  [<c10379b5>] __do_softirq+0xde/0x1c3
[   21.405011]  [<c10b0cef>] ? arch_get_unmapped_area_topdown+0x3b/0x127
[   21.405011]  [<c10378d7>] ? __do_softirq+0x0/0x1c3
[   21.405011]  <IRQ>  [<c1036dee>] ? irq_exit+0x3d/0x49
[   21.405011]  [<c1003b4f>] ? do_IRQ+0x98/0xac
[   21.405011]  [<c1002eee>] ? common_interrupt+0x2e/0x34
[   21.405011]  [<c103007b>] ? sys_unshare+0x57/0x226
[   21.405011]  [<c1047fee>] ? queue_delayed_work+0x1/0x27
[   21.405011]  [<f84a83a0>] ? ieee80211_queue_delayed_work+0x2e/0x33 [mac80211]
[   21.405011]  [<f8492528>] ? ieee80211_scan_work+0x45f/0x4a4 [mac80211]
[   21.405011]  [<c104620e>] ? process_one_work+0x26e/0x41b
[   21.405011]  [<c1046158>] ? process_one_work+0x1b8/0x41b
[   21.405011]  [<f84920c9>] ? ieee80211_scan_work+0x0/0x4a4 [mac80211]
[   21.405011]  [<c10466b6>] ? worker_thread+0x18a/0x2a5
[   21.405011]  [<c12ca25e>] ? _raw_spin_unlock_irqrestore+0x47/0x5e
[   21.405011]  [<c104652c>] ? worker_thread+0x0/0x2a5
[   21.405011]  [<c104abe7>] ? kthread+0x67/0x6c
[   21.405011]  [<c104ab80>] ? kthread+0x0/0x6c
[   21.405011]  [<c1002efa>] ? kernel_thread_helper+0x6/0x10
Signed-off-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Move mac80211 functions into new file mac80211-ops.c to have a better
separation and to make base.c smaller.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Introduce a helper function to get the EEPROM mode from channel and remove
multiple similar switch statements. Also since it's now easy to get the EEPROM
mode from the channel, use them inside the functions which need it, instead of
passing a redundant ee_mode parameter.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove redundant defines.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add a new variable to keep track of the currently configured tx power. Before
max_pwr was re-used for keeping the maximum allowed power as well as the
current configuration. Doing a min() on it allows you to lower the txpower, but
how would you be able to make it higher again?

This patch fixes that by adding a new variable ah_cur_pwr which is used instead
of txp_max_pwr to keep the current configuration. txp_max_pwr is used to check
if we are within the limits.

Another problem fixed by this patch is that it avoids setting a zero txpower
when things are initialized first and the current power is not yet set.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

And rename functions which write the powertable to make it clearer.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Let ath5k_hw_txpower() decide if it can re-use the powertable or if it has to
be recalculated instead of passing a 'fast' flag from the outside.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Acked-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Use function pci_is_pcie() instead of accessing struct member directly.

CC: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The old survey implementation was broken and returned nonsense data.

Clear cycle counters and survey data on reset. Since the cycle counters easily
overflow it's better to keep a local version of collected survey data (in ms
resolution, instead of clockrate) and update this every time survey is
retrieved. If survey is retrieved often enough to avoid cycle counter overflows
this works fine, otherwise we could update survey more often, like ath9k does.
Still only the survey for the current channel is kept.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The AHB bus support patchset moved the table "Known PCI ids" from base.c
to pci.c - unfortunately, MODULE_DEVICE_TABLE() was not transferred.
With this fix 'modinfo ath5k' lists the alias -> pci-id lines, again.

The issue was introduced by:
   commit e5b046d8
   "ath5k: Move PCI bus functions to separate file."
Signed-off-by: NSedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Signed-off-by: NJavier Cardona <javier@cozybit.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This results in an erroneus num_adhoc_vifs count, as the this counter
was incremented but not decremented for mesh interfaces.
Signed-off-by: NJavier Cardona <javier@cozybit.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes the oops below when attempting to bring up a mesh
interface on ath5k hardware.

[  128.933099] kernel BUG at drivers/net/wireless/ath/ath5k/base.c:197!
[  128.933099] invalid opcode: 0000 [#1]
(...)
[  128.933099] Call Trace:
[  128.933099]  [<c83b77fa>] ? ath5k_beacon_update+0x57/0x1f8 [ath5k]
[  128.933099]  [<c02d9a40>] ? __sysfs_add_one+0x28/0x76
[  128.933099]  [<c83b830e>] ? ath5k_bss_info_changed+0x13f/0x173
[ath5k]
[  128.933099]  [<c82ff629>] ? ieee80211_config_beacon+0xc0/0x17e
[mac80211]
[  128.933099]  [<c82f073e>] ?
ieee80211_bss_info_change_notify+0x182/0x18b [mac80211]
[  128.933099]  [<c83b81cf>] ? ath5k_bss_info_changed+0x0/0x173 [ath5k]
[  128.933099]  [<c82ff6d6>] ? ieee80211_config_beacon+0x16d/0x17e
[mac80211]
[  128.933099]  [<c82ff753>] ? ieee80211_add_beacon+0x34/0x39 [mac80211]
[  128.933099]  [<c830a4ed>] ? ieee80211s_init+0xf8/0x10f [mac80211]
[  128.933099]  [<c830a5df>] ? ieee80211_mesh_init_sdata+0xdb/0x154 [mac80211]
Signed-off-by: NJavier Cardona <javier@cozybit.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

One thing I missed in my WME series: Older hardware does not have enough
hardware queues to support WME. In this case we just set up one data queue. Use
the capability information to decide how many queues to set up.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Since this is updated manually and sporadically, it is fairly useless
anyway.
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove ath/debug.h and the includes of these files.
Coalesce long formats.
Correct a few misspellings and missing "\n"s from these logging messages.
Remove unnecessary trailing space before a newline.
Remove ARRAY_SIZE casts, use printf type %zu
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Since we report tx acks to the protocol stack, add the needed
 flag to hw_flags. This way we'll also use the new AP probing mechanism.
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Tested-by: NSedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Correctly report failure to stop RX DMA
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Tested-by: NSedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Stop ANI durring reset to prevent false PHY error reports
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Tested-by: NSedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * Always free tx buffers before reset, since we also empty hw queues.
 If we don't and a queue gets stuck, we'll never decrease txq_len and sw
 will keep thinking the queue is still stuck even after reset.
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Tested-by: NSedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

 * By skipping tx power table calibration we also skip setting
 tx power table on hw. Make sure we always write tx power table
 on hw since it gets cleared on reset.
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Tested-by: NSedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This prepares the only place which uses the EWMA library so far for the
performance improved implementation coming up, which requires factor and
weight to be a power of two.
Signed-off-by: NBruno Randolf <br1@einfach.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

On WiSoc we cannot access mac register before it is resetted.
It will crash hardware otherwise.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NWojciech Dubowik <Wojciech.Dubowik@neratec.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>