From 8f4735297bbfb24976e06bb4f2f115be29a99404 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Thibaut=20VAR=C3=88NE?= Date: Mon, 20 Apr 2020 13:48:02 +0200 Subject: package/base-files: caldata: allow setting target file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This will enable platforms to extract caldata to an arbitrary file, or patch mac in an abitrary file. Signed-off-by: Thibaut VARÈNE --- package/base-files/files/lib/functions/caldata.sh | 29 ++++++++++++++++------- 1 file changed, 21 insertions(+), 8 deletions(-) (limited to '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 3bdb1e4dd5..5e969e3409 100644 --- 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" } -- cgit v1.2.3