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

This will enable platforms to extract caldata to an arbitrary file,
or patch mac in an abitrary file.

Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
master
Thibaut VARÈNE 2020-04-20 13:48:02 +02:00 committed by Koen Vandeputte
parent e995577e70
commit 8f4735297b
2 changed files with 22 additions and 9 deletions
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2
package/base-files/Makefile
View File

@ -12,7 +12,7 @@ include $(INCLUDE_DIR)/version.mk
include $(INCLUDE_DIR)/feeds.mk
PKG_NAME:=base-files
PKG_RELEASE:=218
PKG_RELEASE:=219
PKG_FLAGS:=nonshared
PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/

29
package/base-files/files/lib/functions/caldata.sh
View File

@ -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=$2
magic=$(hexdump -v -n 2 -e '1/1 "%02x"' /lib/firmware/$FIRMWARE)
[ -n "$target" ] || target=/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
macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc oflag=seek_bytes bs=6 seek=$mac_offset count=1 || \
[ -n "$chksum_offset" ] && caldata_patch_chksum "$mac" "$mac_offset" "$chksum_offset" "$target"
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"
}