Initial commit

target/linux/ar71xx/base-files/lib/preinit/82_patch_ath10k

@@ -0,0 +1,50 @@
+#!/bin/sh
+
+. /lib/functions.sh
+. /lib/functions/system.sh
+
+do_patch_ath10k_firmware() {
+	local firmware_file="/lib/firmware/ath10k/QCA988X/hw2.0/firmware-5.bin"
+
+	# bail out if firmware does not exist
+	[ -f "$firmware_file" ] || return
+
+	local mac_offset=276
+	local mac_length=6
+	local default_mac="00:03:07:12:34:56"
+	local current_mac="$(hexdump -v -n $mac_length -s $mac_offset -e '5/1 "%02x:" 1/1 "%02x"' $firmware_file  2>/dev/null)"
+
+	# check if mac address was already patched
+	[ "$default_mac" = "$current_mac" ] || return
+
+	# some boards have bogus mac in otp (= directly in the PCIe card's EEPROM).
+	# we have to patch the default mac in the firmware because we cannot change
+	# the otp.
+	case $(board_name) in
+	dgl-5500-a1|\
+	tew-823dru)
+		local mac
+		mac=$(mtd_get_mac_ascii nvram wlan1_mac)
+
+		cp $firmware_file /tmp/ath10k-firmware.bin
+		macaddr_2bin $mac | dd of=/tmp/ath10k-firmware.bin \
+			conv=notrunc bs=1 seek=$mac_offset count=$mac_length
+		;;
+	esac
+
+	[ -f /tmp/ath10k-firmware.bin ] || return
+
+	cp /tmp/ath10k-firmware.bin $firmware_file
+	rm /tmp/ath10k-firmware.bin
+}
+
+check_patch_ath10k_firmware() {
+	case $(board_name) in
+	dgl-5500-a1|\
+	tew-823dru)
+		do_patch_ath10k_firmware
+		;;
+	esac
+}
+
+boot_hook_add preinit_main check_patch_ath10k_firmware