treewide: move calibration data extraction function to library

This moves the almost identical calibration data extraction
functions present multiple times in several targets to a single
library file /lib/functions/caldata.sh.

Functions are renamed with more generic names to merge different
variants that only differ in their names.

Most of the targets used find_mtd_chardev, while some used
find_mtd_part inside the extraction code. To merge them, the more
abundant version with find_mtd_chardev is used in the common code.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
[rebase on latest master; add mpc85xx]
Signed-off-by: David Bauer <mail@david-bauer.net>

1 files changed, 8 insertions, 29 deletions

diff --git a/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom b/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
index 7b98936ec3..ec70d86dac 100644
--- a/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
+++ b/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
@@ -1,23 +1,8 @@
 #!/bin/sh
 
-rt2x00_eeprom_die() {
-	echo "rt2x00 eeprom: " "$*"
-	exit 1
-}
-
-rt2x00_eeprom_extract() {
-	local part=$1
-	local offset=$(($2))
-	local count=$(($3))
-	local mtd
-
-	mtd=$(find_mtd_part $part)
-	[ -n "$mtd" ] || \
-		rt2x00_eeprom_die "no mtd device found for partition $part"
+[ -e /lib/firmware/$FIRMWARE ] && exit 0
 
-	dd if=$mtd of=/lib/firmware/$FIRMWARE iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
-		rt2x00_eeprom_die "failed to extract from $mtd"
-}
+. /lib/functions/caldata.sh
 
 jboot_eeprom_extract() {
 	local part=$1
@@ -26,29 +11,23 @@ jboot_eeprom_extract() {
 
 	mtd=$(find_mtd_part $part)
 	[ -n "$mtd" ] || \
-		rt2x00_eeprom_die "no mtd device found for partition $part"
+		caldata_die "no mtd device found for partition $part"
 
 	jboot_config_read -i $mtd -o $offset -e /lib/firmware/$FIRMWARE  2>/dev/null || \
-		rt2x00_eeprom_die "failed to extract from $mtd"
+		caldata_die "failed to extract from $mtd"
 }
 
 rt2x00_eeprom_set_macaddr() {
 	local macaddr=$1
 
 	[ -n "$macaddr" ] || \
-		rt2x00_eeprom_die "invalid wlan mac address"
+		caldata_die "invalid wlan mac address"
 
 	macaddr_2bin $macaddr | dd of=/lib/firmware/$FIRMWARE \
 				conv=notrunc oflag=seek_bytes bs=6 seek=4 count=1 2>/dev/null || \
-		rt2x00_eeprom_die "failed to write mac address to eeprom file"
+		caldata_die "failed to write mac address to eeprom file"
 }
 
-FW="/lib/firmware/$FIRMWARE"
-[ -e "$FW" ] && exit 0
-
-. /lib/functions.sh
-. /lib/functions/system.sh
-
 board=$(board_name)
 
 case "$FIRMWARE" in
@@ -68,11 +47,11 @@ case "$FIRMWARE" in
 		;;
 	dovado,tiny-ac)
 		wifi_mac=$(mtd_get_mac_ascii u-boot-env INIC_MAC_ADDR)
-		rt2x00_eeprom_extract "factory" 0x0 0x200
+		caldata_extract "factory" 0x0 0x200
 		rt2x00_eeprom_set_macaddr $wifi_mac
 		;;
 	*)
-		rt2x00_eeprom_die "Please define mtd-eeprom in $board DTS file!"
+		caldata_die "Please define mtd-eeprom in $board DTS file!"
 		;;
 	esac
 	;;