#!/bin/sh
+# xor multiple hex values of the same length
+xor() {
+ local val
+ local ret="0x$1"
+ local retlen=${#1}
+
+ shift
+ while [ -n "$1" ]; do
+ val="0x$1"
+ ret=$((ret ^ val))
+ shift
+ done
+
+ printf "%0${retlen}x" "$ret"
+}
+
ath10kcal_die() {
echo "ath10cal: " "$*"
exit 1
ath10kcal_die "failed to extract from $ubi"
}
+ath10kcal_patch_mac() {
+ local mac=$1
+
+ [ -z "$mac" ] && return
+
+ macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=6 count=6
+}
+
+ath10kcal_patch_mac_crc() {
+ local mac=$1
+ local mac_offset=6
+ local chksum_offset=2
+ local xor_mac
+ local xor_fw_mac
+ local xor_fw_chksum
+
+ xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
+ xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
+
+ ath10kcal_patch_mac "$mac" && {
+ xor_mac=${mac//:/}
+ xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
+
+ xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
+ xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
+
+ printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
+ dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
+ }
+}
+
+ath10kcal_is_caldata_valid() {
+ local expected="$1"
+
+ magic=$(hexdump -v -n 2 -e '1/1 "%02x"' /lib/firmware/$FIRMWARE)
+ [[ "$magic" == "$expected" ]]
+ return $?
+}
+
[ -e /lib/firmware/$FIRMWARE ] && exit 0
. /lib/functions.sh
case "$FIRMWARE" in
+"ath10k/cal-pci-0000:01:00.0.bin")
+ case "$board" in
+ meraki,mr33)
+ ath10kcal_ubi_extract "ART" 36864 2116
+ ath10kcal_is_caldata_valid "4408" || ath10kcal_extract "ART" 36864 2116
+ ath10kcal_patch_mac $(macaddr_add $(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 102) +1)
+ ;;
+ esac
+ ;;
"ath10k/pre-cal-ahb-a000000.wifi.bin")
case "$board" in
asus,rt-ac58u)
qcom,ap-dk01.1-c1)
ath10kcal_extract "ART" 4096 12064
;;
+ meraki,mr33)
+ ath10kcal_ubi_extract "ART" 4096 12064
+ ath10kcal_is_caldata_valid "202f" || ath10kcal_extract "ART" 4096 12064
+ ath10kcal_patch_mac_crc $(macaddr_add $(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 102) +2)
+ ;;
openmesh,a42)
ath10kcal_extract "0:ART" 4096 12064
;;
qcom,ap-dk01.1-c1)
ath10kcal_extract "ART" 20480 12064
;;
+ meraki,mr33)
+ ath10kcal_ubi_extract "ART" 20480 12064
+ ath10kcal_is_caldata_valid "202f" || ath10kcal_extract "ART" 20480 12064
+ ath10kcal_patch_mac_crc $(macaddr_add $(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 102) +3)
+ ;;
openmesh,a42)
ath10kcal_extract "0:ART" 20480 12064
;;