linux.git/drivers/net/wireless/realtek/rtw89/debug.h, branch vsnprintf

wifi: rtw89: debugfs: support multiple adapters debugging

2024-08-22T02:03:24+00:00

The rtw89 uses debugfs to access registers and driver states. To get
a range of registers, the range value is set and stored to a variable, and
get the set of register values by the stored range. However, the variable
is a static global variable, which multiple adapters will be a problem,
so move the variable to adapter context rtw89_dev.

Signed-off-by: Ping-Ke Shih 
Link: https://patch.msgid.link/20240816115700.17390-1-pkshih@realtek.com

wifi: rtw89: debug: remove wrapper of rtw89_debug()

2023-11-30T19:45:22+00:00

The wrapper of rtw89_debug() is unnecessary, so just remove it.

Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20231122060458.30878-5-pkshih@realtek.com

wifi: rtw89: phy: dynamically adjust EDCCA threshold

2023-11-30T19:45:22+00:00

Add dynamic mechanism EDCCA (Energy Detection Clear Channel Assessment)
in track work. Using a fixed-value threshold will make EDCCA particularly
sensitive and cause failure to transmit under certain circumstances.
Therefore, the threshold is dynamically adjusted to make EDCCA suitable
for any situation.

However, in some cases, we will adjust the EDCCA threshold to the highest
level so that urgent transmissions can be performed successfully, such as
scanning.

Finally, in order to observe the EDCCA report in time, add the EDCCA perIC
register macro and EDCCA HW report analysis. EDCCA logs can be displayed
by using the EDCCA debug mask.

Signed-off-by: Yi-Chen Chen 
Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20231122060458.30878-3-pkshih@realtek.com

wifi: rtw89: debug: add to check if debug mask is enabled

2023-11-30T19:45:21+00:00

The coming dynamic mechanism of EDCCA adjustment will add a function to
dump registers to reflect status. However, if we are not debugging
the mechanism, we don't print anything, so avoid reading registers by
checking debug mask to reduce IO.

Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20231122060458.30878-2-pkshih@realtek.com

wifi: rtw89: acpi: process 6 GHz band policy from DSM

2023-11-22T15:48:00+00:00

Realtek ACPI DSM func 4, RTW89_ACPI_DSM_FUNC_6G_BP,
accepts a configuration via ACPI buffer as below.

| index | description   |
-------------------------
| [0-2] | signature     |
| [3]   | reserved      |
| [4]   | policy mode   |
| [5]   | country count |
| [6-]  | country list  |

Through this function, BIOS can indicate to allow/block
6 GHz on some specific countries. Still, driver should
follow regd first before taking this configuration into
account.

Besides, add a bit in debug mask for ACPI.

Signed-off-by: Zong-Zhe Yang 
Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20231114091359.50664-2-pkshih@realtek.com

wifi: rtw89: refine MCC C2H debug logs

2023-02-13T17:06:10+00:00

To debug channel concurrency more centrally, we add a new debug flag,
RTW89_DBG_CHAN, for channel related things, especially channel concurrency.
Then, we change MCC (multi-channel concurrency) C2H (chip to host packets)
debug flag to it.

Besides, refine debug logs to show TSF in u64 directly.

Signed-off-by: Zong-Zhe Yang 
Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20230119064342.65391-2-pkshih@realtek.com

wifi: rtw89: switch BANDEDGE and TX_SHAPE based on OFDMA trigger frame

2022-11-22T10:15:30+00:00

There are some registers for transmit waveform control, two of them used
in this change are for BANDEDGE and TX_SHAPE control. BANDEDGE controls
whether to apply band edge filter to transmit waveform. TX_SHAPE controls
whether to apply triangular mask to transmit waveform. It is found for
some chip, these two should be turned off during OFDMA UL traffic for
better performance.

Signed-off-by: Eric Huang 
Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20221117063001.42967-3-pkshih@realtek.com

wifi: rtw89: add WoWLAN function support

2022-11-01T09:26:14+00:00

WoWLAN is a feature which allows devices to be woken up from suspend
state through WLAN events.

When user enables WoWLAN feature and then let the device enter suspend
state, WoWLAN firmware will be loaded by the driver and periodically
monitors WiFi packets. Power consumption of WiFi chip will be reduced
in this state.

We now implement WoWLAN function in rtw8852ae and rtw8852ce chip.
Currently supported WLAN events include receiving magic packet,
rekey packet and deauth packet, and disconnecting from AP.

Signed-off-by: Chin-Yen Lee 
Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20221027052707.14605-7-pkshih@realtek.com

wifi: rtw89: support P2P

2022-09-24T12:36:27+00:00

To support P2P in driver, we set P2P interface mode to the wiphy
allocated for 802.11 PHY and add a change interface function to
switch the interface type to P2P.

Signed-off-by: Po Hao Huang 
Signed-off-by: Dian-Syuan Yang 
Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20220922010435.12167-2-pkshih@realtek.com

wifi: rtw89: add UNEXP debug mask to keep monitor messages unexpected to happen frequently

2022-06-21T06:15:47+00:00

Some warning messages could bother users. With proper handling, these
situations don't really affect usage, but we still need to keep monitor
these messages. If they happen frequently, we must review driver or
hardware design to clarify.

Signed-off-by: Ping-Ke Shih 
Signed-off-by: Kalle Valo 
Link: https://lore.kernel.org/r/20220610072610.27095-8-pkshih@realtek.com