Dmitry Tunin <[email protected]> [2019-02-22 16:13:52]:

> What do you mean by "generalize"? Fix it on all platforms, or having
> common 10-ath9k-eeprom, 11-ath10k-caldata, etc files., or common code
> that will be used on all platforms in some other file?
> The first approach is obviously simple enough, but the second is not
> that easy, but doable.

Simply moving common bits to some generic file which could be shared by all
platforms. Something like this for ar71xx, ath79 and ramips, untested. 

---
 package/base-files/files/lib/functions/eeprom.sh   | 54 ++++++++++++
 .../etc/hotplug.d/firmware/10-ath9k-eeprom         | 97 +++++-----------------
 .../etc/hotplug.d/firmware/10-ath9k-eeprom         | 84 +++++--------------
 .../etc/hotplug.d/firmware/10-rt2x00-eeprom        | 32 ++-----
 4 files changed, 106 insertions(+), 161 deletions(-)
 create mode 100644 package/base-files/files/lib/functions/eeprom.sh

diff --git a/package/base-files/files/lib/functions/eeprom.sh 
b/package/base-files/files/lib/functions/eeprom.sh
new file mode 100644
index 0000000..3b585da
--- /dev/null
+++ b/package/base-files/files/lib/functions/eeprom.sh
@@ -0,0 +1,54 @@
+. /lib/functions.sh
+. /lib/functions/system.sh
+
+eeprom_die() {
+       echo "eeprom: " "$*"
+       exit 1
+}
+
+mtd_eeprom_extract() {
+       local part=$1
+       local offset=$2
+       local count=$3
+       local mtd
+
+       mtd=$(find_mtd_chardev $part)
+       [ -n "$mtd" ] || \
+               eeprom_die "no mtd device found for partition $part"
+
+       dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 
2>/dev/null || \
+               eeprom_die "failed to extract from $mtd"
+}
+
+mtd_eeprom_extract_reverse() {
+       local part=$1
+       local offset=$2
+       local count=$3
+       local mtd
+       local reversed
+       local caldata
+
+       mtd=$(find_mtd_chardev "$part")
+       reversed=$(hexdump -v -s $offset -n $count -e '/1 "%02x "' $mtd)
+
+       for byte in $reversed; do
+               caldata="\x${byte}${caldata}"
+       done
+
+       printf "%b" "$caldata" > /lib/firmware/$FIRMWARE
+}
+
+ubi_eeprom_extract() {
+       local part=$1
+       local offset=$2
+       local count=$3
+       local ubidev=$(nand_find_ubi $CI_UBIPART)
+       local ubi
+
+       ubi=$(nand_find_volume $ubidev $part)
+       [ -n "$ubi" ] || \
+               eeprom_die "no UBI volume found for $part"
+
+       dd if=/dev/$ubi of=/lib/firmware/$FIRMWARE bs=1 skip=$offset 
count=$count 2>/dev/null || \
+               eeprom_die "failed to extract from $ubi"
+}
diff --git 
a/target/linux/ar71xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom 
b/target/linux/ar71xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
index 94bce7d..21808fb 100644
--- a/target/linux/ar71xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
+++ b/target/linux/ar71xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
@@ -2,60 +2,7 @@
 
 [ -e /lib/firmware/$FIRMWARE ] && exit 0
 
-. /lib/functions.sh
-. /lib/functions/system.sh
-
-ath9k_eeprom_die() {
-       echo "ath9k eeprom: " "$*"
-       exit 1
-}
-
-ath9k_eeprom_extract() {
-       local part=$1
-       local offset=$2
-       local count=$3
-       local mtd
-
-       mtd=$(find_mtd_chardev $part)
-       [ -n "$mtd" ] || \
-               ath9k_eeprom_die "no mtd device found for partition $part"
-
-       dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 
2>/dev/null || \
-               ath9k_eeprom_die "failed to extract from $mtd"
-}
-
-ath9k_ubi_eeprom_extract() {
-       local part=$1
-       local offset=$2
-       local count=$3
-       local ubidev=$(nand_find_ubi $CI_UBIPART)
-       local ubi
-
-       ubi=$(nand_find_volume $ubidev $part)
-       [ -n "$ubi" ] || \
-               ath9k_eeprom_die "no UBI volume found for $part"
-
-       dd if=/dev/$ubi of=/lib/firmware/$FIRMWARE bs=1 skip=$offset 
count=$count 2>/dev/null || \
-               ath9k_eeprom_die "failed to extract from $ubi"
-}
-
-ath9k_eeprom_extract_reverse() {
-       local part=$1
-       local offset=$2
-       local count=$3
-       local mtd
-       local reversed
-       local caldata
-
-       mtd=$(find_mtd_chardev "$part")
-       reversed=$(hexdump -v -s $offset -n $count -e '/1 "%02x "' $mtd)
-
-       for byte in $reversed; do
-               caldata="\x${byte}${caldata}"
-       done
-
-       printf "%b" "$caldata" > /lib/firmware/$FIRMWARE
-}
+. /lib/functions/eeprom.sh
 
 ath9k_patch_firmware_mac() {
        local mac=$1
@@ -72,48 +19,48 @@ case "$FIRMWARE" in
        case $board in
        c-55|\
        c-60)
-               ath9k_eeprom_extract "art" 4096 2048
+               mtd_eeprom_extract "art" 4096 2048
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary art 
0) +1)
                ;;
        fritz4020|\
        fritz450e)
-               ath9k_eeprom_extract_reverse "urlader" 5441 1088
+               mtd_eeprom_extract_reverse "urlader" 5441 1088
                ;;
        mr18)
                . /lib/upgrade/nand.sh
 
                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
-                       ath9k_ubi_eeprom_extract "caldata" 4096 2048
+                       ubi_eeprom_extract "caldata" 4096 2048
                else
-                       ath9k_eeprom_extract "odm-caldata" 4096 2048
+                       mtd_eeprom_extract "odm-caldata" 4096 2048
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi 
board-config 102) +1)
                ;;
        r6100 | \
        wndr3700v4 | \
        wndr4300)
-               ath9k_eeprom_extract "caldata" 4096 2048
+               mtd_eeprom_extract "caldata" 4096 2048
                ath9k_patch_firmware_mac $(mtd_get_mac_binary caldata 0)
                ;;
        rambutan)
-               ath9k_eeprom_extract "art" 4096 2048
+               mtd_eeprom_extract "art" 4096 2048
                ;;
        wlr8100)
-               ath9k_eeprom_extract "art" 4096 2048
+               mtd_eeprom_extract "art" 4096 2048
                ath9k_patch_firmware_mac $(mtd_get_mac_ascii u-boot-env 
"ethaddr")
                ;;
        z1)
                . /lib/upgrade/nand.sh
 
                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
-                       ath9k_ubi_eeprom_extract "caldata" 4096 2048
+                       ubi_eeprom_extract "caldata" 4096 2048
                else
-                       ath9k_eeprom_extract "origcaldata" 4096 2048
+                       mtd_eeprom_extract "origcaldata" 4096 2048
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi 
board-config 102) +2)
                ;;
        *)
-               ath9k_eeprom_die "board $board is not supported yet"
+               eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
@@ -121,39 +68,39 @@ case "$FIRMWARE" in
 "pci_wmac0.eeprom")
        case $board in
        c-55)
-               ath9k_eeprom_extract "art" 20480 2048
+               mtd_eeprom_extract "art" 20480 2048
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary art 
0) +2)
                ;;
        fritz300e)
-               ath9k_eeprom_extract_reverse "urloader" 5441 1088
+               mtd_eeprom_extract_reverse "urloader" 5441 1088
                ;;
        mr18)
                . /lib/upgrade/nand.sh
 
                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
-                       ath9k_ubi_eeprom_extract "caldata" 20480 2048
+                       ubi_eeprom_extract "caldata" 20480 2048
                else
-                       ath9k_eeprom_extract "odm-caldata" 20480 2048
+                       mtd_eeprom_extract "odm-caldata" 20480 2048
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi 
board-config 102) +2)
                ;;
        wndr3700v4 | \
        wndr4300)
-               ath9k_eeprom_extract "caldata" 20480 2048
+               mtd_eeprom_extract "caldata" 20480 2048
                ath9k_patch_firmware_mac $(mtd_get_mac_binary caldata 12)
                ;;
        z1)
                . /lib/upgrade/nand.sh
 
                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
-                       ath9k_ubi_eeprom_extract "caldata" 86016 4096
+                       ubi_eeprom_extract "caldata" 86016 4096
                else
-                       ath9k_eeprom_extract "origcaldata" 86016 4096
+                       mtd_eeprom_extract "origcaldata" 86016 4096
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi 
board-config 102) +3)
                ;;
        *)
-               ath9k_eeprom_die "board $board is not supported yet"
+               eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
@@ -164,14 +111,14 @@ case "$FIRMWARE" in
                . /lib/upgrade/nand.sh
 
                if [ -n "$(nand_find_volume ubi0 caldata)" ]; then
-                       ath9k_ubi_eeprom_extract "caldata" 36864 2048
+                       ubi_eeprom_extract "caldata" 36864 2048
                else
-                       ath9k_eeprom_extract "odm-caldata" 36864 2048
+                       mtd_eeprom_extract "odm-caldata" 36864 2048
                fi
                ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi 
board-config 102) +3)
                ;;
        *)
-               ath9k_eeprom_die "board $board is not supported yet"
+               eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
diff --git 
a/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom 
b/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
index 8b217d1..8979075 100644
--- a/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
+++ b/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
@@ -2,45 +2,7 @@
 
 [ -e /lib/firmware/$FIRMWARE ] && exit 0
 
-. /lib/functions.sh
-. /lib/functions/system.sh
-
-ath9k_eeprom_die() {
-       echo "ath9k eeprom: " "$*"
-       exit 1
-}
-
-ath9k_eeprom_extract() {
-       local part=$1
-       local offset=$2
-       local count=$3
-       local mtd
-
-       mtd=$(find_mtd_chardev $part)
-       [ -n "$mtd" ] || \
-               ath9k_eeprom_die "no mtd device found for partition $part"
-
-       dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 
2>/dev/null || \
-               ath9k_eeprom_die "failed to extract from $mtd"
-}
-
-ath9k_eeprom_extract_reverse() {
-       local part=$1
-       local offset=$2
-       local count=$3
-       local mtd
-       local reversed
-       local caldata
-
-       mtd=$(find_mtd_chardev "$part")
-       reversed=$(hexdump -v -s $offset -n $count -e '/1 "%02x "' $mtd)
-
-       for byte in $reversed; do
-               caldata="\x${byte}${caldata}"
-       done
-
-       printf "%b" "$caldata" > /lib/firmware/$FIRMWARE
-}
+. /lib/functions/eeprom.sh
 
 xor() {
        local val
@@ -98,50 +60,50 @@ case "$FIRMWARE" in
 "ath9k-eeprom-ahb-18100000.wmac.bin")
        case $board in
        avm,fritz4020)
-               ath9k_eeprom_extract_reverse "urlader" 5441 1088
+               mtd_eeprom_extract_reverse "urlader" 5441 1088
                ;;
        dlink,dir-825-c1|\
        dlink,dir-835-a1)
-               ath9k_eeprom_extract "art" 4096 1088
+               mtd_eeprom_extract "art" 4096 1088
                ath9k_patch_fw_mac_crc $(mtd_get_mac_text "mac" 4) 2
                ;;
        dlink,dir-859-a1)
-               ath9k_eeprom_extract "art" 4096 1088
+               mtd_eeprom_extract "art" 4096 1088
                ath9k_patch_fw_mac $(mtd_get_mac_ascii devdata "wlan24mac") 2
                ;;
        iodata,wn-ac1167dgr|\
        iodata,wn-ac1600dgr|\
        iodata,wn-ac1600dgr2|\
        iodata,wn-ag300dgr)
-               ath9k_eeprom_extract "art" 4096 1088
+               mtd_eeprom_extract "art" 4096 1088
                ath9k_patch_fw_mac $(mtd_get_mac_ascii u-boot-env ethaddr) 2
                ;;
        nec,wg800hp)
-               ath9k_eeprom_extract "art" 4096 1088
+               mtd_eeprom_extract "art" 4096 1088
                ath9k_patch_fw_mac $(mtd_get_mac_text board_data 1664) 2
                ;;
        *)
-               ath9k_eeprom_die "board $board is not supported yet"
+               eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
 "ath9k-eeprom-pci-0000:00:00.0.bin")
        case $board in
        avm,fritz300e)
-               ath9k_eeprom_extract_reverse "urloader" 5441 1088
+               mtd_eeprom_extract_reverse "urloader" 5441 1088
                ;;
        buffalo,whr-g301n|\
        buffalo,wzr-hp-g302h-a1a0|\
        tplink,tl-wr841-v5|\
        tplink,tl-wr941-v4)
-               ath9k_eeprom_extract "art" 4096 3768
+               mtd_eeprom_extract "art" 4096 3768
                ;;
        buffalo,wzr-hp-g450h)
-               ath9k_eeprom_extract "ART" 4096 1088
+               mtd_eeprom_extract "ART" 4096 1088
                ;;
        dlink,dir-825-c1|\
        dlink,dir-835-a1)
-               ath9k_eeprom_extract "art" 20480 1088
+               mtd_eeprom_extract "art" 20480 1088
                ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_text "mac" 
24) 1) 2
                ;;
        ocedo,raccoon|\
@@ -149,7 +111,7 @@ case "$FIRMWARE" in
        tplink,tl-wdr4300|\
        tplink,tl-wdr4900-v2|\
        winchannel,wb2000)
-               ath9k_eeprom_extract "art" 20480 1088
+               mtd_eeprom_extract "art" 20480 1088
                ;;
        netgear,wnr612-v2|\
        on,n150r|\
@@ -167,20 +129,20 @@ case "$FIRMWARE" in
        ubnt,bullet-m|\
        ubnt,nano-m|\
        ubnt,rocket-m)
-               ath9k_eeprom_extract "art" 4096 4096
+               mtd_eeprom_extract "art" 4096 4096
                ;;
        pqi,air-pen)
-               ath9k_eeprom_extract "art" 4096 2002
+               mtd_eeprom_extract "art" 4096 2002
                ;;
        ubnt,unifi)
-               ath9k_eeprom_extract "art" 4096 2048
+               mtd_eeprom_extract "art" 4096 2048
                ;;
        wd,mynet-wifi-rangeextender)
-               ath9k_eeprom_extract "art" 4096 4096
+               mtd_eeprom_extract "art" 4096 4096
                ath9k_patch_fw_mac_crc $(nvram get wl0_hwaddr) "$mac" 2
                ;;
        *)
-               ath9k_eeprom_die "board $board is not supported yet"
+               eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
@@ -190,14 +152,14 @@ case "$FIRMWARE" in
        netgear,wndr3700|\
        netgear,wndr3700v2|\
        netgear,wndr3800)
-               ath9k_eeprom_extract "art" 4096 3768
+               mtd_eeprom_extract "art" 4096 3768
                ;;
        dlink,dir-825-b1)
-               ath9k_eeprom_extract "caldata" 4096 3768
+               mtd_eeprom_extract "caldata" 4096 3768
                ath9k_patch_fw_mac_crc $(mtd_get_mac_text "caldata" 65440) 524
                ;;
        *)
-               ath9k_eeprom_die "board $board is not supported yet"
+               eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
@@ -207,14 +169,14 @@ case "$FIRMWARE" in
        netgear,wndr3700|\
        netgear,wndr3700v2|\
        netgear,wndr3800)
-               ath9k_eeprom_extract "art" 20480 3768
+               mtd_eeprom_extract "art" 20480 3768
                ;;
        dlink,dir-825-b1)
-               ath9k_eeprom_extract "caldata" 20480 3768
+               mtd_eeprom_extract "caldata" 20480 3768
                ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_text 
"caldata" 65460) 1) 524
                ;;
        *)
-               ath9k_eeprom_die "board $board is not supported yet"
+               eeprom_die "board $board is not supported yet"
                ;;
        esac
        ;;
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 13a4687..60b0e68 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
@@ -1,24 +1,5 @@
 #!/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 $part"
-
-       dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 
2>/dev/null || \
-               rt2x00_eeprom_die "failed to extract from $mtd"
-}
-
 jboot_eeprom_extract() {
        local part=$1
        local offset=$2
@@ -26,21 +7,21 @@ jboot_eeprom_extract() {
 
        mtd=$(find_mtd_part $part)
        [ -n "$mtd" ] || \
-               rt2x00_eeprom_die "no mtd device found for partition $part"
+               eeprom_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"
+               eeprom_die "failed to extract from $mtd"
 }
 
 rt2x00_eeprom_set_macaddr() {
        local macaddr=$1
 
        [ -n "$macaddr" ] || \
-               rt2x00_eeprom_die "invalid wlan mac address"
+               eeprom_die "invalid wlan mac address"
 
        macaddr_2bin $macaddr | dd of=/lib/firmware/$FIRMWARE \
                                conv=notrunc bs=1 seek=4 count=6 2>/dev/null || 
\
-               rt2x00_eeprom_die "failed to write mac address to eeprom file"
+               eeprom_die "failed to write mac address to eeprom file"
 }
 
 FW="/lib/firmware/$FIRMWARE"
@@ -48,6 +29,7 @@ FW="/lib/firmware/$FIRMWARE"
 
 . /lib/functions.sh
 . /lib/functions/system.sh
+. /lib/functions/eeprom.sh
 
 board=$(board_name)
 
@@ -67,11 +49,11 @@ case "$FIRMWARE" in
                ;;
        tiny-ac)
                wifi_mac=$(mtd_get_mac_ascii u-boot-env INIC_MAC_ADDR)
-               rt2x00_eeprom_extract "factory" 0 512
+               mtd_eeprom_extract "factory" 0 512
                rt2x00_eeprom_set_macaddr $wifi_mac
                ;;
        *)
-               rt2x00_eeprom_die "Please define mtd-eeprom in $board DTS file!"
+               eeprom_die "Please define mtd-eeprom in $board DTS file!"
                ;;
        esac
        ;;

-- ynezz

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