package/base-files: caldata: allow setting target file

[openwrt/openwrt.git] / package / base-files / files / lib / functions / caldata.sh

diff --git a/package/base-files/files/lib/functions/caldata.sh b/package/base-files/files/lib/functions/caldata.sh
index 3bdb1e4dd5a5ae42b29d4f866ae99891e4511155..5e969e3409304572c1dddc2fb35cf4d68de92966 100644 (file)
--- a/package/base-files/files/lib/functions/caldata.sh
+++ b/package/base-files/files/lib/functions/caldata.sh
@@ -60,15 +60,21 @@ caldata_from_file() {
        local source=$1
        local offset=$(($2))
        local count=$(($3))
+       local target=$4
 
-       dd if=$source of=/lib/firmware/$FIRMWARE iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
+       [ -n "$target" ] || target=/lib/firmware/$FIRMWARE
+
+       dd if=$source of=$target iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
                caldata_die "failed to extract calibration data from $source"
 }
 
 caldata_valid() {
        local expected="$1"
+       local target=$2
+
+       [ -n "$target" ] || target=/lib/firmware/$FIRMWARE
 
-       magic=$(hexdump -v -n 2 -e '1/1 "%02x"' /lib/firmware/$FIRMWARE)
+       magic=$(hexdump -v -n 2 -e '1/1 "%02x"' $target)
        [ "$magic" = "$expected" ]
        return $?
 }
@@ -77,6 +83,7 @@ caldata_patch_chksum() {
        local mac=$1
        local mac_offset=$(($2))
        local chksum_offset=$(($3))
+       local target=$4
        local xor_mac
        local xor_fw_mac
        local xor_fw_chksum
@@ -91,38 +98,44 @@ caldata_patch_chksum() {
        xor_fw_chksum=$(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
+               dd of=$target conv=notrunc bs=1 seek=$chksum_offset count=2
 }
 
 caldata_patch_mac() {
        local mac=$1
        local mac_offset=$(($2))
        local chksum_offset=$3
+       local target=$4
 
        [ -z "$mac" -o -z "$mac_offset" ] && return
 
-       [ -n "$chksum_offset" ] && caldata_patch_chksum "$mac" "$mac_offset" "$chksum_offset"
+       [ -n "$target" ] || target=/lib/firmware/$FIRMWARE
+
+       [ -n "$chksum_offset" ] && caldata_patch_chksum "$mac" "$mac_offset" "$chksum_offset" "$target"
 
-       macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc oflag=seek_bytes bs=6 seek=$mac_offset count=1 || \
+       macaddr_2bin $mac | dd of=$target conv=notrunc oflag=seek_bytes bs=6 seek=$mac_offset count=1 || \
                caldata_die "failed to write MAC address to eeprom file"
 }
 
 ath9k_patch_mac() {
        local mac=$1
+       local target=$2
 
-       caldata_patch_mac "$mac" 0x2
+       caldata_patch_mac "$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_mac "$mac" "$mac_offset" "$chksum_offset"
+       caldata_patch_mac "$mac" "$mac_offset" "$chksum_offset" "$target"
 }
 
 ath10k_patch_mac() {
        local mac=$1
+       local target=$2
 
-       caldata_patch_mac "$mac" 0x6 0x2
+       caldata_patch_mac "$mac" 0x6 0x2 "$target"
 }