Again new complaints surfaced that we had broken the ABI here,
although previously all the userspace tools had agreed that it
was their mistake and fixed it. Yet now there are cases (e.g.
RHEL) that want to run old userspace with newer kernels, and
thus are broken.

Since this is a bit of a whack-a-mole thing, change the whole
extensibility scheme of rfkill to no longer just rely on the
message lengths, but instead require userspace to opt in via a
new ioctl to a given maximum event size that it is willing to
understand.

By default, set that to RFKILL_EVENT_SIZE_V1 (8), so that the
behaviour for userspace not calling the ioctl will look as if
it's just running on an older kernel.

Fixes: 14486c82 ("rfkill: add a reason to the HW rfkill state")
Cc: stable@vger.kernel.org # 5.11+
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220316212749.16491491b270.Ifcb1950998330a596f29a2a162e00b7546a1d6d0@changeid

mt76 patches for 5.18

- bugfixes
- mbssid support for mt7915
- 6 GHz support for mt7915
- mt7921u driver

These function is used to stop transmitting when we are going to switch
channels or do some RF calibration. Before these operations, we need to
stop channel transmission and backup setting into parameter tx_en. After
operations are done, resume transmitting by backup parameter tx_en.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-13-pkshih@realtek.com

In order to support 8852C that uses 32 bits to control TX types.

This patch doesn't really use 32 bits tx_en yet, but next patch will
use it.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-12-pkshih@realtek.com

Use if() style would be clear than "? :", because the else cases are
always 0. The read val from rtw89_mac_read_lte() isn't used, so remove
this statement.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-11-pkshih@realtek.com

The BT-coexistence uses these function to control antenna and TDMA, so
implement the variant type to support all chips.
Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-10-pkshih@realtek.com

Initialize FW status and disabled H2C function if CPU disabled. Then, it
can reset to initial state.
Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-9-pkshih@realtek.com

8852C add new hardware feature -- preload window, which is used to load
more data to D-MAC, so it can possibly yield better performance.

This patch is to configure preload and reserved size for next window.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-8-pkshih@realtek.com

Modify functions that control D-MAC (data MAC) and LDO to support variant
chips.
Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-7-pkshih@realtek.com

The format of RF parameter is changed; it doesn't encode delay parameters
into table, but the delay coding becomes regular pair of register address
and value.

To help firmware to recover RF register settings, we need to download
these parameters to firmware. For v1 format, only download partial
parameters (ignore them with addr < 0x100).
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-6-pkshih@realtek.com

Using encoded address which BIT(16) is used to discriminate which region is
going to access. Illustrate the calling flow as below

rtw89_phy_write_rf_v1() -+-> rtw89_phy_write_rf()   // old interface
                         +-> rtw89_phy_write_rf_a() // new interface
Signed-off-by: Chung-Hsuan Hung <hsuan8331@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-5-pkshih@realtek.com

Configure this TX power to indicate TX power offset that uses to transmit
TB (trigger base) uplink frames.
Also, shrink the unit of TX power offset changes to suitable type s8.
Signed-off-by: Yuan-Han Zhang <yuanhan1020@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-4-pkshih@realtek.com

The CFO tracking algorithm is the same, but control methods are different.
Set parameters via xtal serial interfaces (SI).
Signed-off-by: Yuan-Han Zhang <yuanhan1020@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-3-pkshih@realtek.com

The dcfo_comp is digital CFO (central frequency offset) compensation.
Since the flow can be shared with all chips, add chip parameters to support
variant register address and format.
Signed-off-by: Yuan-Han Zhang <yuanhan1020@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-2-pkshih@realtek.com

There are some spelling mistakes in some literal strings. Fix them.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220316234242.55515-1-colin.i.king@gmail.com

There are some spelling mistakes in comments and brcmf_dbg messages.
Fix these.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220316233938.55135-1-colin.i.king@gmail.com

Building iwlmei without CONFIG_CFG80211 causes a link-time warning:

ld.lld: error: undefined symbol: ieee80211_hdrlen
>>> referenced by net.c
>>>               net/wireless/intel/iwlwifi/mei/net.o:(iwl_mei_tx_copy_to_csme) in archive drivers/built-in.a

Add an explicit dependency to avoid this. In theory it should not
be needed here, but it also seems pointless to allow IWLMEI
for configurations without CFG80211.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Emmanuel Grumbach <Emmanuel.grumbach@intel.com>
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220316183617.1470631-1-arnd@kernel.org

When setup monitor mode in DFS channel, mt76 send CH_SWITCH_DFS to
fw for channel config. This would cause rx performance bad while
monitoring frames. Settings CH_SWITCH_NORMAL in monitor mode would
get the same performance as normal channels.
Reviewed-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

IEEE80211_CONF_CHANGE_MONITOR would be set every time even when vif runs as
sta mode.

If vif runs as sta mode, the beacon filter would be falsely enabled
earlier than the associated state.

That is not the behavior the firmware expects and also breaks the original
logic of sta mode. Thus, we only limit the operation to set the beacon
filter only for monitor mode when IEEE80211_CONF_CHANGE_MONITOR is set.

Fixes: 4ad65a54 ("mt76: mt7921: toggle runtime-pm adding a monitor vif")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Due to the missing IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN in
status report, the HE rate in wirehsark/tcpdump always shows wrong value.
Applications will refer to IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC
when the flag is set and shows the correct data rate.
Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Introduce mbss mcu APIs to enable 802.11ax multi-bss AP support for
mt7915 devices
Tested-by: Money Wang <money.wang@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Co-developed-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Firmware initialization can take a while. Move mt7921_init_hw routine in
a dedicated work in order to not slow down bootstrap process.
Tested-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Introduce support for MT7921U 802.11ax 2x2:2SS wireless devices.
Tested-by: Sean Wang <sean.wang@mediatek.com>
Tested-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This is a preliminary patch to add mt7921u driver support.
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This is a preliminary patch to add mt7921u driver support.
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This is a preliminary patch to add mt7921u driver support.
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This is a preliminary patch to add mt7921u driver support.
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Runtime-pm is not currently supported by usb driver
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Introduce __mt76u_init unitility routine and move mt7615 usb bus ops
into mt7615 module in order to allow specifying driver specific
parameter.
This is a preliminary patch to add usb support to mt7921 driver.
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This is a preliminary patch to add usb support to mt7921 driver.
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This is a preliminary patch to add usb support to mt7921 driver.
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Various spelling mistakes in comments.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

This patch fixes performance issue of beamforming tx on
bandwidth 160MHz.

Fixes: 99ad32a4 ("mt76: mt7915: add support for MT7986")
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Some of beamforming mib counters are moved to different offsets
or registers in newer chipsets.

Fixes: 99ad32a4 ("mt76: mt7915: add support for MT7986")
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Set proper group index of tx descriptor for band1.
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Drop invalid rssi value to calculate a reasonable report

Fixes: 4550fb9e ("mt76: improve signal strength reporting")
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Switch to use le32/16_get_bits() to simplfy codes and specify
the size explicitly to avoid potential issues.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Don't populate the read-only array ba_range on the stack but
instead make it static const. Also makes the object code a little
smaller.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

If devm_pinctrl_get() fails then it leads to an error pointer
dereference.  Add a check to prevent that.

Fixes: 99ad32a4 ("mt76: mt7915: add support for MT7986")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt7921_wait_for_mcu_init is no longer used.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>