target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom

   1 #!/bin/sh
   2
   3 [ -e /lib/firmware/$FIRMWARE ] && exit 0
   4
   5 . /lib/functions.sh
   6 . /lib/functions/system.sh
   7
   8 ath9k_eeprom_die() {
   9         echo "ath9k eeprom: " "$*"
  10         exit 1
  11 }
  12
  13 ath9k_eeprom_extract() {
  14         local part=$1
  15         local offset=$2
  16         local count=$3
  17         local mtd
  18
  19         mtd=$(find_mtd_chardev $part)
  20         [ -n "$mtd" ] || \
  21                 ath9k_eeprom_die "no mtd device found for partition $part"
  22
  23         dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 2>/dev/null || \
  24                 ath9k_eeprom_die "failed to extract from $mtd"
  25 }
  26
  27 ath9k_eeprom_extract_reverse() {
  28         local part=$1
  29         local offset=$2
  30         local count=$3
  31         local mtd
  32         local reversed
  33         local caldata
  34
  35         mtd=$(find_mtd_chardev "$part")
  36         reversed=$(hexdump -v -s $offset -n $count -e '/1 "%02x "' $mtd)
  37
  38         for byte in $reversed; do
  39                 caldata="\x${byte}${caldata}"
  40         done
  41
  42         printf "%b" "$caldata" > /lib/firmware/$FIRMWARE
  43 }
  44
  45 xor() {
  46         local val
  47         local ret="0x$1"
  48         local retlen=${#1}
  49
  50         shift
  51         while [ -n "$1" ]; do
  52                 val="0x$1"
  53                 ret=$((ret ^ val))
  54                 shift
  55         done
  56
  57         printf "%0${retlen}x" "$ret"
  58 }
  59
  60 ath9k_patch_fw_mac() {
  61         local mac=$1
  62         local mac_offset=$2
  63         local chksum_offset=$3
  64         local xor_mac
  65         local xor_fw_mac
  66         local xor_fw_chksum
  67
  68         [ -z "$mac" -o -z "$mac_offset" ] && return
  69
  70         [ -n "$chksum_offset" ] && {
  71                 xor_mac=${mac//:/}
  72                 xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
  73
  74                 xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  75                 xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
  76
  77                 xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  78                 xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
  79
  80                 printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
  81                         dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
  82         }
  83
  84         macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$mac_offset count=6
  85 }
  86
  87 ath9k_patch_fw_mac_crc() {
  88         local mac=$1
  89         local mac_offset=$2
  90         local chksum_offset=$((mac_offset - 10))
  91
  92         ath9k_patch_fw_mac "${mac}" "${mac_offset}" "${chksum_offset}"
  93 }
  94
  95 board=$(board_name)
  96
  97 case "$FIRMWARE" in
  98 "ath9k-eeprom-ahb-18100000.wmac.bin")
  99         case $board in
 100         iodata,wn-ac1600dgr2)
 101                 ath9k_eeprom_extract "art" 4096 1088
 102                 ath9k_patch_fw_mac $(mtd_get_mac_ascii u-boot-env ethaddr) 2
 103                 ;;
 104         *)
 105                 ath9k_eeprom_die "board $board is not supported yet"
 106                 ;;
 107         esac
 108         ;;
 109 "ath9k-eeprom-pci-0000:00:00.0.bin")
 110         case $board in
 111         avm,fritz300e)
 112                 ath9k_eeprom_extract_reverse "urloader" 5441 1088
 113                 ;;
 114         buffalo,whr-g301n|\
 115         tplink,tl-wr841-v5|\
 116         tplink,tl-wr941-v4)
 117                 ath9k_eeprom_extract "art" 4096 3768
 118                 ;;
 119         ocedo,raccoon|\
 120         tplink,tl-wdr3600|\
 121         tplink,tl-wdr4300|\
 122         tplink,tl-wdr4900-v2)
 123                 ath9k_eeprom_extract "art" 20480 1088
 124                 ;;
 125         netgear,wnr612-v2|\
 126         on,n150r|\
 127         pcs,cap324|\
 128         tplink,tl-mr3220-v1|\
 129         tplink,tl-mr3420-v1|\
 130         tplink,tl-wr2543-v1|\
 131         tplink,tl-wr740n-v1|\
 132         tplink,tl-wr740n-v3|\
 133         tplink,tl-wr741-v1|\
 134         tplink,tl-wr743nd-v1|\
 135         tplink,tl-wr841-v7|\
 136         ubnt,unifi)
 137                 ath9k_eeprom_extract "art" 4096 2048
 138                 ;;
 139         *)
 140                 ath9k_eeprom_die "board $board is not supported yet"
 141                 ;;
 142         esac
 143         ;;
 144 "ath9k-eeprom-pci-0000:00:11.0.bin")
 145         case $board in
 146         dlink,dir-825-b1)
 147                 ath9k_eeprom_extract "caldata" 4096 3768
 148                 ath9k_patch_fw_mac_crc $(mtd_get_mac_text "caldata" 65440) 524
 149                 ;;
 150         netgear,wndr3700|\
 151         netgear,wndr3700v2|\
 152         netgear,wndr3800)
 153                 ath9k_eeprom_extract "art" 4096 3768
 154                 ;;
 155         *)
 156                 ath9k_eeprom_die "board $board is not supported yet"
 157                 ;;
 158         esac
 159         ;;
 160 "ath9k-eeprom-pci-0000:00:12.0.bin")
 161         case $board in
 162         dlink,dir-825-b1)
 163                 ath9k_eeprom_extract "caldata" 20480 3768
 164                 ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_text "caldata" 65460) 1) 524
 165                 ;;
 166         netgear,wndr3700|\
 167         netgear,wndr3700v2|\
 168         netgear,wndr3800)
 169                 ath9k_eeprom_extract "art" 20480 3768
 170                 ;;
 171         *)
 172                 ath9k_eeprom_die "board $board is not supported yet"
 173                 ;;
 174         esac
 175         ;;
 176 esac