target/linux/lantiq/base-files/etc/hotplug.d/firmware/12-ath9k-eeprom

   1 #!/bin/sh
   2 # Based on ar71xx 10-ath9k-eeprom
   3
   4 [ -e /lib/firmware/$FIRMWARE ] && exit 0
   5
   6 . /lib/functions.sh
   7 . /lib/functions/system.sh
   8 . /lib/upgrade/nand.sh
   9
  10 # xor multiple hex values of the same length
  11 xor() {
  12         local val
  13         local ret="0x$1"
  14         local retlen=${#1}
  15
  16         shift
  17         while [ -n "$1" ]; do
  18                 val="0x$1"
  19                 ret=$((ret ^ val))
  20                 shift
  21         done
  22
  23         printf "%0${retlen}x" "$ret"
  24 }
  25
  26 ath9k_eeprom_die() {
  27         echo "ath9k eeprom: $*"
  28         exit 1
  29 }
  30
  31 ath9k_eeprom_extract_raw() {
  32         local source=$1
  33         local offset=$2
  34         local swap=$3
  35         local size=4096
  36         local bs=1
  37         local conv=
  38
  39         if [ $swap -gt 0 ]; then
  40                 bs=2
  41                 conv="conv=swab"
  42                 size=$((size / bs))
  43                 offset=$((offset / bs))
  44         fi
  45
  46         dd if=$source of=/lib/firmware/$FIRMWARE bs=$bs skip=$offset count=$size $conv 2>/dev/null || \
  47                         ath9k_eeprom_die "failed to extract from $mtd"
  48 }
  49
  50 ath9k_eeprom_extract_reverse() {
  51         local part=$1
  52         local offset=$2
  53         local count=$3
  54         local mtd
  55         local reversed
  56         local caldata
  57
  58         mtd=$(find_mtd_chardev "$part")
  59         reversed=$(hexdump -v -s $offset -n $count -e '/1 "%02x "' $mtd)
  60
  61         for byte in $reversed; do
  62                 caldata="\x${byte}${caldata}"
  63         done
  64
  65         printf "%b" "$caldata" > /lib/firmware/$FIRMWARE
  66 }
  67
  68 ath9k_eeprom_extract() {
  69         local part=$1
  70         local offset=$2
  71         local swap=$3
  72         local mtd
  73
  74         mtd=$(find_mtd_chardev $part)
  75         [ -n "$mtd" ] || \
  76                 ath9k_eeprom_die "no mtd device found for partition $part"
  77
  78         ath9k_eeprom_extract_raw $mtd $offset $swap
  79 }
  80
  81 ath9k_ubi_eeprom_extract() {
  82         local part=$1
  83         local offset=$2
  84         local swap=$3
  85         local ubidev=$(nand_find_ubi $CI_UBIPART)
  86         local ubi
  87
  88         ubi=$(nand_find_volume $ubidev $part)
  89         [ -n "$ubi" ] || \
  90                 ath9k_eeprom_die "no UBI volume found for $part"
  91
  92         ath9k_eeprom_extract_raw /dev/$ubi $offset $swap
  93 }
  94
  95 ath9k_patch_fw_mac_crc() {
  96         local mac=$1
  97         local mac_offset=$2
  98         local chksum_offset=$((mac_offset - 10))
  99
 100         ath9k_patch_fw_mac "${mac}" "${mac_offset}" "${chksum_offset}"
 101 }
 102
 103 ath9k_patch_fw_mac() {
 104         local mac=$1
 105         local mac_offset=$2
 106         local chksum_offset=$3
 107         local xor_mac
 108         local xor_fw_mac
 109         local xor_fw_chksum
 110
 111         [ -z "$mac" -o -z "$mac_offset" ] && return
 112
 113         [ -n "$chksum_offset" ] && {
 114                 xor_mac=${mac//:/}
 115                 xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
 116
 117                 xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
 118                 xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
 119
 120                 xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
 121                 xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
 122
 123                 printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
 124                         dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
 125         }
 126
 127         macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$mac_offset count=6
 128 }
 129
 130 case "$FIRMWARE" in
 131         "ath9k-eeprom-pci-0000:00:0e.0.bin" | \
 132         "ath9k-eeprom-pci-0000:01:00.0.bin" | \
 133         "ath9k-eeprom-pci-0000:02:00.0.bin")
 134                 board=$(board_name)
 135
 136                 case "$board" in
 137                         arcadyan,arv7518pw)
 138                                 ath9k_eeprom_extract "boardconfig" 1024 1
 139                                 ;;
 140                         arcadyan,arv8539pw22)
 141                                 ath9k_eeprom_extract "art" 1024 1
 142                                 ;;
 143                         bt,homehub-v2b)
 144                                 ath9k_eeprom_extract "art" 0 1
 145                                 ath9k_patch_fw_mac_crc "00:00:00:00:00:00" 524
 146                                 ;;
 147                         bt,homehub-v3a)
 148                                 ath9k_eeprom_extract "art-copy" 0 1
 149                                 ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_ascii uboot_env ethaddr) +2) 268
 150                                 ;;
 151                         bt,homehub-v5a)
 152                                 ath9k_ubi_eeprom_extract "caldata" 4096 0
 153                                 ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_binary_ubi caldata 4364) +2) 268
 154                                 ;;
 155                         netgear,dgn3500|netgear,dgn3500b)
 156                                 ath9k_eeprom_extract "calibration" 61440 0
 157                                 ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_ascii uboot-env ethaddr) +2) 524
 158                                 ;;
 159                         avm,fritz3370-rev2-hynix|\
 160                         avm,fritz3370-rev2-micron|\
 161                         avm,fritz7362sl)
 162                                 ath9k_eeprom_extract_reverse "urlader" 5441 1088
 163                                 ;;
 164                         avm,fritz7312|avm,fritz7320|avm,fritz7360sl)
 165                                 ath9k_eeprom_extract "urlader" 2437 0
 166                                 ;;
 167                         avm,fritz7412)
 168                                 /usr/bin/fritz_cal_extract -i 1 -s 0x1e000 -e 0x207 -l 4096 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader")
 169                                 ;;
 170                         tplink,tdw8970|tplink,tdw8980)
 171                                 ath9k_eeprom_extract "boardconfig" 135168 0
 172                                 ;;
 173                         *)
 174                                 ath9k_eeprom_die "board $board is not supported yet"
 175                                 ;;
 176                 esac
 177                 ;;
 178 esac