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, 27 insertions, 74 deletions

diff --git a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index dfb0a0cf76..61597ea669 100644
--- a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -1,43 +1,8 @@
 #!/bin/sh
 
-. /lib/functions.sh
-
-ath10kcal_die() {
-	echo "ath10cal: " "$*"
-	exit 1
-}
-
-ath10kcal_extract() {
-	local part=$1
-	local offset=$(($2))
-	local count=$(($3))
-	local mtd
-
-	mtd=$(find_mtd_chardev $part)
-	[ -n "$mtd" ] || \
-		ath10kcal_die "no mtd device found for partition $part"
-
-	dd if=$mtd of=/lib/firmware/$FIRMWARE iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
-		ath10kcal_die "failed to extract calibration data from $mtd"
-}
-
-ath10kcal_ubi_extract() {
-	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" ] || \
-		ath10kcal_die "no UBI volume found for $part"
+[ -e /lib/firmware/$FIRMWARE ] && exit 0
 
-	dd if=/dev/$ubi of=/lib/firmware/$FIRMWARE iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
-		ath10kcal_die "failed to extract from $ubi"
-}
+. /lib/functions/caldata.sh
 
 ath10kcal_patch_mac_crc() {
 	local mac=$1
@@ -64,26 +29,14 @@ ath10kcal_patch_mac_crc() {
 		dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
 }
 
-ath10kcal_is_caldata_valid() {
-	local expected="$1"
-
-	magic=$(hexdump -v -n 2 -e '1/1 "%02x"' /lib/firmware/$FIRMWARE)
-	[[ "$magic" == "$expected" ]]
-	return $?
-}
-
-[ -e /lib/firmware/$FIRMWARE ] && exit 0
-
-. /lib/functions/system.sh
-
 board=$(board_name)
 
 case "$FIRMWARE" in
 "ath10k/cal-pci-0000:01:00.0.bin")
 	case "$board" in
 	meraki,mr33)
-		ath10kcal_ubi_extract "ART" 0x9000 0x844
-		ath10kcal_is_caldata_valid "4408" || ath10kcal_extract "ART" 0x9000 0x844
+		caldata_extract_ubi "ART" 0x9000 0x844
+		caldata_valid "4408" || caldata_extract "ART" 0x9000 0x844
 		ath10kcal_patch_mac_crc $(macaddr_add $(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 0x66) +1)
 		;;
 	esac
@@ -91,7 +44,7 @@ case "$FIRMWARE" in
 "ath10k/pre-cal-pci-0000:01:00.0.bin")
 	case "$board" in
 	asus,map-ac2200)
-		ath10kcal_ubi_extract "Factory" 0x9000 0x2f20
+		caldata_extract_ubi "Factory" 0x9000 0x2f20
 		ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \
 			/lib/firmware/ath10k/QCA9888/hw2.0/board.bin
 		;;
@@ -104,12 +57,12 @@ case "$FIRMWARE" in
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3C000 -e 0x212 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader1")
 		;;
 	linksys,ea8300)
-		ath10kcal_extract "ART" 0x9000 0x2f20
+		caldata_extract "ART" 0x9000 0x2f20
 		# OEM assigns 4 sequential MACs
 		ath10kcal_patch_mac_crc $(macaddr_setbit_la $(macaddr_add "$(cat /sys/class/net/eth0/address)" 4))
 		;;
 	openmesh,a62)
-		ath10kcal_extract "0:ART" 0x9000 0x2f20
+		caldata_extract "0:ART" 0x9000 0x2f20
 		;;
 	esac
 	;;
@@ -120,14 +73,14 @@ case "$FIRMWARE" in
 	glinet,gl-b1300 |\
 	linksys,ea6350v3 |\
 	qcom,ap-dk01.1-c1)
-		ath10kcal_extract "ART" 0x1000 0x2f20
+		caldata_extract "ART" 0x1000 0x2f20
 		;;
 	asus,map-ac2200)
-		ath10kcal_ubi_extract "Factory" 0x1000 0x2f20
+		caldata_extract_ubi "Factory" 0x1000 0x2f20
 		;;
 	asus,rt-ac58u)
 		CI_UBIPART=UBI_DEV
-		ath10kcal_ubi_extract "Factory" 0x1000 0x2f20
+		caldata_extract_ubi "Factory" 0x1000 0x2f20
 		;;
 	avm,fritzbox-4040)
 		/usr/bin/fritz_cal_extract -i 1 -s 0x400 -e 0x207 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader_config")
@@ -147,29 +100,29 @@ case "$FIRMWARE" in
 	openmesh,a62 |\
 	qxwlan,e2600ac-c1 |\
 	qxwlan,e2600ac-c2)
-		ath10kcal_extract "0:ART" 0x1000 0x2f20
+		caldata_extract "0:ART" 0x1000 0x2f20
 		;;
 	engenius,ens620ext)
-		ath10kcal_extract "ART" 0x1000 0x2f20
+		caldata_extract "ART" 0x1000 0x2f20
 		ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_ascii u-boot-env ethaddr) +2)
 		;;
 	linksys,ea8300)
-		ath10kcal_extract "ART" 0x1000 0x2f20
+		caldata_extract "ART" 0x1000 0x2f20
 		ath10kcal_patch_mac_crc $(macaddr_add "$(cat /sys/class/net/eth0/address)" 2)
 		;;
 	meraki,mr33)
-		ath10kcal_ubi_extract "ART" 0x1000 0x2f20
-		ath10kcal_is_caldata_valid "202f" || ath10kcal_extract "ART" 0x1000 0x2f20
+		caldata_extract_ubi "ART" 0x1000 0x2f20
+		caldata_valid "202f" || caldata_extract "ART" 0x1000 0x2f20
 		ath10kcal_patch_mac_crc $(macaddr_add $(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 0x66) +2)
 		;;
 	netgear,ex6100v2 |\
 	netgear,ex6150v2)
-		ath10kcal_extract "ART" 0x1000 0x2f20
+		caldata_extract "ART" 0x1000 0x2f20
 		ath10kcal_patch_mac_crc $(mtd_get_mac_binary dnidata 0x0)
 		;;
 	zyxel,nbg6617 |\
 	zyxel,wre6606)
-		ath10kcal_extract "ART" 0x1000 0x2f20
+		caldata_extract "ART" 0x1000 0x2f20
 		ath10kcal_patch_mac_crc $(macaddr_add $(cat /sys/class/net/eth0/address) -2)
 		;;
 	esac
@@ -181,14 +134,14 @@ case "$FIRMWARE" in
 	glinet,gl-b1300 |\
 	linksys,ea6350v3 |\
 	qcom,ap-dk01.1-c1)
-		ath10kcal_extract "ART" 0x5000 0x2f20
+		caldata_extract "ART" 0x5000 0x2f20
 		;;
 	asus,map-ac2200)
-		ath10kcal_ubi_extract "Factory" 0x5000 0x2f20
+		caldata_extract_ubi "Factory" 0x5000 0x2f20
 		;;
 	asus,rt-ac58u)
 		CI_UBIPART=UBI_DEV
-		ath10kcal_ubi_extract "Factory" 0x5000 0x2f20
+		caldata_extract_ubi "Factory" 0x5000 0x2f20
 		;;
 	avm,fritzbox-4040)
 		/usr/bin/fritz_cal_extract -i 1 -s 0x400 -e 0x208 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader_config")
@@ -208,29 +161,29 @@ case "$FIRMWARE" in
 	openmesh,a62 |\
 	qxwlan,e2600ac-c1 |\
 	qxwlan,e2600ac-c2)
-		ath10kcal_extract "0:ART" 0x5000 0x2f20
+		caldata_extract "0:ART" 0x5000 0x2f20
 		;;
 	engenius,ens620ext)
-		ath10kcal_extract "ART" 0x5000 0x2f20
+		caldata_extract "ART" 0x5000 0x2f20
 		ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_ascii u-boot-env ethaddr) +3)
 		;;
 	linksys,ea8300)
-		ath10kcal_extract "ART" 0x5000 0x2f20
+		caldata_extract "ART" 0x5000 0x2f20
 		ath10kcal_patch_mac_crc $(macaddr_add "$(cat /sys/class/net/eth0/address)" 3)
 		;;
 	meraki,mr33)
-		ath10kcal_ubi_extract "ART" 0x5000 0x2f20
-		ath10kcal_is_caldata_valid "202f" || ath10kcal_extract "ART" 0x5000 0x2f20
+		caldata_extract_ubi "ART" 0x5000 0x2f20
+		caldata_valid "202f" || caldata_extract "ART" 0x5000 0x2f20
 		ath10kcal_patch_mac_crc $(macaddr_add $(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 0x66) +3)
 		;;
 	netgear,ex6100v2 |\
 	netgear,ex6150v2)
-		ath10kcal_extract "ART" 0x5000 0x2f20
+		caldata_extract "ART" 0x5000 0x2f20
 		ath10kcal_patch_mac_crc $(mtd_get_mac_binary dnidata 0xc)
 		;;
 	zyxel,nbg6617 |\
 	zyxel,wre6606)
-		ath10kcal_extract "ART" 0x5000 0x2f20
+		caldata_extract "ART" 0x5000 0x2f20
 		ath10kcal_patch_mac_crc $(macaddr_add $(cat /sys/class/net/eth0/address) -1)
 		;;
 	esac