[OpenWrt-Devel] [PATCH 5/5] lantiq: modify ath9k caldata extraction to reuse caldata.sh

[Adrian Schmutzler]

In lantiq, ath9k caldata extraction is implemented to work in two
alternate "modes", the standard one and another one with conv=swab.

This rearranges the functions so "standard" use is based on the
caldata.sh library, while only a single local function is required
for the special case.

Note that the size of the caldata needs to be included into the
call for functions located in caldata.sh.

Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>

---

This patch is a late addition to the caldata.sh patchset and has
to be applied last.
---
 .../etc/hotplug.d/firmware/12-ath9k-eeprom    | 61 +++++--------------
 1 file changed, 14 insertions(+), 47 deletions(-)

diff --git a/target/linux/lantiq/base-files/etc/hotplug.d/firmware/12-ath9k-eeprom b/target/linux/lantiq/base-files/etc/hotplug.d/firmware/12-ath9k-eeprom
index b5dba670b1..a4c6aa4f18 100644
--- a/target/linux/lantiq/base-files/etc/hotplug.d/firmware/12-ath9k-eeprom
+++ b/target/linux/lantiq/base-files/etc/hotplug.d/firmware/12-ath9k-eeprom
@@ -1,55 +1,22 @@
 #!/bin/sh
-# Based on ar71xx 10-ath9k-eeprom
 
 [ -e /lib/firmware/$FIRMWARE ] && exit 0
 
 . /lib/functions/caldata.sh
-. /lib/upgrade/nand.sh
 
-ath9k_eeprom_extract_raw() {
-	local source=$1
-	local offset=$(($2))
-	local swap=$3
-	local size=4096
-	local bs=1
-	local conv=
-
-	if [ $swap -gt 0 ]; then
-		bs=2
-		conv="conv=swab"
-		size=$((size / bs))
-		offset=$((offset / bs))
-	fi
-
-	dd if=$source of=/lib/firmware/$FIRMWARE bs=$bs skip=$offset count=$size $conv 2>/dev/null || \
-			caldata_die "failed to extract from $mtd"
-}
-
-ath9k_eeprom_extract() {
+caldata_extract_swap() {
 	local part=$1
 	local offset=$2
-	local swap=$3
+	local count=2048
 	local mtd
 
 	mtd=$(find_mtd_chardev $part)
-	[ -n "$mtd" ] || \
-		caldata_die "no mtd device found for partition $part"
-
-	ath9k_eeprom_extract_raw $mtd $offset $swap
-}
-
-ath9k_ubi_eeprom_extract() {
-	local part=$1
-	local offset=$2
-	local swap=$3
-	local ubidev=$(nand_find_ubi $CI_UBIPART)
-	local ubi
+	[ -n "$mtd" ] || caldata_die "no mtd device found for partition $part"
 
-	ubi=$(nand_find_volume $ubidev $part)
-	[ -n "$ubi" ] || \
-		caldata_die "no UBI volume found for $part"
+	offset=$(($offset / 2))
 
-	ath9k_eeprom_extract_raw /dev/$ubi $offset $swap
+	dd if=$mtd of=/lib/firmware/$FIRMWARE bs=2 skip=$offset count=$count conv=swab 2>/dev/null || \
+		caldata_die "failed to extract calibration data from $mtd"
 }
 
 case "$FIRMWARE" in
@@ -60,25 +27,25 @@ case "$FIRMWARE" in
 
 		case "$board" in
 			arcadyan,arv7518pw)
-				ath9k_eeprom_extract "boardconfig" 0x400 1
+				caldata_extract_swap "boardconfig" 0x400
 				;;
 			arcadyan,arv8539pw22)
-				ath9k_eeprom_extract "art" 0x400 1
+				caldata_extract_swap "art" 0x400
 				;;
 			bt,homehub-v2b)
-				ath9k_eeprom_extract "art" 0x0 1
+				caldata_extract_swap "art" 0x0
 				caldata_patch_fw_mac_crc "00:00:00:00:00:00" 0x20c
 				;;
 			bt,homehub-v3a)
-				ath9k_eeprom_extract "art-copy" 0x0 1
+				caldata_extract_swap "art-copy" 0x0
 				caldata_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_ascii uboot_env ethaddr) +2) 0x10c
 				;;
 			bt,homehub-v5a)
-				ath9k_ubi_eeprom_extract "caldata" 0x1000 0
+				caldata_extract_ubi "caldata" 0x1000 0x1000
 				caldata_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_binary_ubi caldata 0x110c) +2) 0x10c
 				;;
 			netgear,dgn3500|netgear,dgn3500b)
-				ath9k_eeprom_extract "calibration" 0xf000 0
+				caldata_extract "calibration" 0xf000 0x1000
 				caldata_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_ascii uboot-env ethaddr) +2) 0x20c
 				;;
 			avm,fritz3370-rev2-hynix|\
@@ -87,13 +54,13 @@ case "$FIRMWARE" in
 				caldata_extract_reverse "urlader" 0x1541 0x440
 				;;
 			avm,fritz7312|avm,fritz7320|avm,fritz7360sl)
-				ath9k_eeprom_extract "urlader" 0x985 0
+				caldata_extract "urlader" 0x985 0x1000
 				;;
 			avm,fritz7412)
 				/usr/bin/fritz_cal_extract -i 1 -s 0x1e000 -e 0x207 -l 4096 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader")
 				;;
 			tplink,tdw8970|tplink,tdw8980)
-				ath9k_eeprom_extract "boardconfig" 0x21000 0
+				caldata_extract "boardconfig" 0x21000 0x1000
 				;;
 			*)
 				caldata_die "board $board is not supported yet"
-- 
2.20.1


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