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# Copyright (C) 2019 OpenWrt.org
. /lib/functions.sh
. /lib/functions/system.sh
caldata_dd() {
local source=$1
local target=$2
local count=$(($3))
local offset=$(($4))
dd if=$source of=$target iflag=skip_bytes,fullblock bs=$count skip=$offset count=1 2>/dev/null
return $?
}
caldata_die() {
echo "caldata: " "$*"
exit 1
}
caldata_extract() {
local part=$1
local offset=$(($2))
local count=$(($3))
local mtd
mtd=$(find_mtd_chardev $part)
[ -n "$mtd" ] || caldata_die "no mtd device found for partition $part"
caldata_dd $mtd /lib/firmware/$FIRMWARE $count $offset || \
caldata_die "failed to extract calibration data from $mtd"
}
caldata_extract_ubi() {
local part=$1
local offset=$(($2))
local count=$(($3))
local ubidev
local ubi
. /lib/upgrade/nand.sh
ubidev=$(nand_find_ubi $CI_UBIPART)
ubi=$(nand_find_volume $ubidev $part)
[ -n "$ubi" ] || caldata_die "no UBI volume found for $part"
caldata_dd /dev/$ubi /lib/firmware/$FIRMWARE $count $offset || \
caldata_die "failed to extract calibration data from $ubi"
}
caldata_extract_mmc() {
local part=$1
local offset=$(($2))
local count=$(($3))
local mmc_part
mmc_part=$(find_mmc_part $part)
[ -n "$mmc_part" ] || caldata_die "no mmc partition found for partition $part"
caldata_dd $mmc_part /lib/firmware/$FIRMWARE $count $offset || \
caldata_die "failed to extract calibration data from $mmc_part"
}
caldata_extract_reverse() {
local part=$1
local offset=$2
local count=$(($3))
local mtd
local reversed
local caldata
mtd=$(find_mtd_chardev "$part")
reversed=$(hexdump -v -s $offset -n $count -e '1/1 "%02x "' $mtd)
for byte in $reversed; do
caldata="\x${byte}${caldata}"
done
printf "%b" "$caldata" > /lib/firmware/$FIRMWARE
}
caldata_from_file() {
local source=$1
local offset=$(($2))
local count=$(($3))
local target=$4
[ -n "$target" ] || target=/lib/firmware/$FIRMWARE
caldata_dd $source $target $count $offset || \
caldata_die "failed to extract calibration data from $source"
}
caldata_sysfsload_from_file() {
local source=$1
local offset=$(($2))
local count=$(($3))
local target_dir="/sys/$DEVPATH"
local target="$target_dir/data"
[ -d "$target_dir" ] || \
caldata_die "no sysfs dir to write: $target"
echo 1 > "$target_dir/loading"
caldata_dd $source $target $count $offset
if [ $? != 0 ]; then
echo 1 > "$target_dir/loading"
caldata_die "failed to extract calibration data from $source"
else
echo 0 > "$target_dir/loading"
fi
}
caldata_valid() {
local expected="$1"
local target=$2
[ -n "$target" ] || target=/lib/firmware/$FIRMWARE
magic=$(hexdump -v -n 2 -e '1/1 "%02x"' $target)
[ "$magic" = "$expected" ]
return $?
}
caldata_patch_data() {
local data=$1
local data_count=$((${#1} / 2))
local data_offset=$(($2))
local chksum_offset=$(($3))
local target=$4
local fw_data
local fw_chksum
[ -z "$data" -o -z "$data_offset" ] && return
[ -n "$target" ] || target=/lib/firmware/$FIRMWARE
fw_data=$(hexdump -v -n $data_count -s $data_offset -e '1/1 "%02x"' $target)
if [ "$data" != "$fw_data" ]; then
if [ -n "$chksum_offset" ]; then
fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '1/1 "%02x"' $target)
fw_chksum=$(xor $fw_chksum $(data_2xor_val $fw_data) $(data_2xor_val $data))
data_2bin $fw_chksum | \
dd of=$target conv=notrunc bs=1 seek=$chksum_offset count=2 || \
caldata_die "failed to write chksum to eeprom file"
fi
data_2bin $data | \
dd of=$target conv=notrunc bs=1 seek=$data_offset count=$data_count || \
caldata_die "failed to write data to eeprom file"
fi
}
ath9k_patch_mac() {
local mac=$1
local target=$2
caldata_patch_data "${mac//:/}" 0x2 "" "$target"
}
ath9k_patch_mac_crc() {
local mac=$1
local mac_offset=$2
local chksum_offset=$((mac_offset - 10))
local target=$4
caldata_patch_data "${mac//:/}" "$mac_offset" "$chksum_offset" "$target"
}
ath10k_patch_mac() {
local mac=$1
local target=$2
caldata_patch_data "${mac//:/}" 0x6 0x2 "$target"
}
ath11k_patch_mac() {
local mac=$1
# mac_id from 0 to 5
local mac_id=$2
local target=$3
[ -z "$mac_id" ] && return
caldata_patch_data "${mac//:/}" $(printf "0x%x" $(($mac_id * 0x6 + 0xe))) 0xa "$target"
}
ath10k_remove_regdomain() {
local target=$1
caldata_patch_data "0000" 0xc 0x2 "$target"
}
ath11k_remove_regdomain() {
local target=$1
local regdomain
local regdomain_data
regdomain=$(hexdump -v -n 2 -s 0x34 -e '1/1 "%02x"' $target)
caldata_patch_data "0000" 0x34 0xa "$target"
for offset in 0x450 0x458 0x500 0x5a8; do
regdomain_data=$(hexdump -v -n 2 -s $offset -e '1/1 "%02x"' $target)
if [ "$regdomain" == "$regdomain_data" ]; then
caldata_patch_data "0000" $offset 0xa "$target"
fi
done
}
ath11k_set_macflag() {
local target=$1
caldata_patch_data "0100" 0x3e 0xa "$target"
}
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