openwrt/target/linux/mvebu
John Thomson 7d33aedd10 generic: platform/mikrotik: add wlan lz77 decompress
A number of new (or with recently updated caldata)
Mikrotik devices are using LZ77 magic for wlan tag hard_config data.
New devices include the Chateau LTE12 [1], and ax devices [2]
Newly factory flashed devices may include the hap ac3 [3]

This can be seen in decoded OEM supout [4] dmesg:
"radio data lz77 decompressed from"…

Investigating an arm RouterOS flash.ko module, and supplied example
hard_config dumps, the format was guessed via decompilation and live
debugging [5]. This decoder was then built from the guessed format
specification.

debug prints can be enabled in a DYNAMIC_DEBUG kernel build via the
kernel cmdline:

        chosen {
-               bootargs = "console=ttyS0,115200";
+               bootargs = "console=ttyS0,115200 dyndbg=\"file drivers/platform/mikrotik/* +p\"";
        };

[1]: https://forum.openwrt.org/t/no-wireless-mikrotik-rbd53ig-5hacd2hnd/157763/4
[2]: https://forum.openwrt.org/t/mikrotik-routeros-v7-x-and-openwrt-sysupgrade/148072/17
[3]: https://forum.openwrt.org/t/adding-support-for-mikrotik-hap-ax2/133715/47
[4]: https://github.com/farseeker/go-mikrotik-rif
[5]: https://github.com/john-tho/routeros-wlan-lz77-decode

Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>
Link: https://github.com/openwrt/openwrt/pull/15774
Signed-off-by: Robert Marko <robimarko@gmail.com>
2024-10-08 10:45:58 +02:00
..
base-files/lib/preinit mvebu: switch to generic sdcard upgrade method 2021-08-07 01:43:39 +03:00
cortexa9 mvebu: improve sysupgrade for FortiGate/FortiWiFi devices 2024-09-22 15:29:16 +02:00
cortexa53 mvebu: uDPU/eDPU: mount misc partition with ZSTD compression 2024-06-17 20:16:20 +02:00
cortexa72 generic: platform/mikrotik: add wlan lz77 decompress 2024-10-08 10:45:58 +02:00
files-6.6/arch mvebu: update triggers of "SPEED" LEDs on FortiGate/FortiWiFi devices 2024-09-22 15:29:16 +02:00
image mvebu: GL-MV1000: add custom boot script 2024-08-06 21:46:25 +02:00
patches-6.6 mvebu: 6.6: Backport Turris Omnia MCU patches from 6.11 2024-08-02 22:11:05 +02:00
config-6.6 mvebu: enable CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y config option 2024-08-06 21:46:25 +02:00
Makefile mvebu: switch to kernel 6.6 2024-05-12 11:29:23 +02:00
modules.mk mvebu: Add kmod-turris-omnia-mcu 2024-08-02 22:11:05 +02:00