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/functions/lantiq.sh
   9 . /lib/upgrade/nand.sh
  10
  11 # xor multiple hex values of the same length
  12 xor() {
  13         local val
  14         local ret="0x$1"
  15         local retlen=${#1}
  16
  17         shift
  18         while [ -n "$1" ]; do
  19                 val="0x$1"
  20                 ret=$((ret ^ val))
  21                 shift
  22         done
  23
  24         printf "%0${retlen}x" "$ret"
  25 }
  26
  27 ath9k_eeprom_die() {
  28         echo "ath9k eeprom: $*"
  29         exit 1
  30 }
  31
  32 ath9k_eeprom_extract_raw() {
  33         local source=$1
  34         local offset=$2
  35         local swap=$3
  36         local size=4096
  37         local bs=1
  38         local conv=
  39
  40         if [ $swap -gt 0 ]; then
  41                 bs=2
  42                 conv="conv=swab"
  43                 size=$((size / bs))
  44                 offset=$((offset / bs))
  45         fi
  46
  47         dd if=$source of=/lib/firmware/$FIRMWARE bs=$bs skip=$offset count=$size $conv 2>/dev/null || \
  48                         ath9k_eeprom_die "failed to extract from $mtd"
  49 }
  50
  51 ath9k_eeprom_extract() {
  52         local part=$1
  53         local offset=$2
  54         local swap=$3
  55         local mtd
  56
  57         mtd=$(find_mtd_chardev $part)
  58         [ -n "$mtd" ] || \
  59                 ath9k_eeprom_die "no mtd device found for partition $part"
  60
  61         ath9k_eeprom_extract_raw $mtd $offset $swap
  62 }
  63
  64 ath9k_ubi_eeprom_extract() {
  65         local part=$1
  66         local offset=$2
  67         local swap=$3
  68         local ubidev=$(nand_find_ubi $CI_UBIPART)
  69         local ubi
  70
  71         ubi=$(nand_find_volume $ubidev $part)
  72         [ -n "$ubi" ] || \
  73                 ath9k_eeprom_die "no UBI volume found for $part"
  74
  75         ath9k_eeprom_extract_raw /dev/$ubi $offset $swap
  76 }
  77
  78 ath9k_patch_firmware_mac() {
  79         local mac=$1
  80         local mac_offset=$2
  81         local swap=$3
  82         local chksum_offset=$4
  83         local xor_mac
  84         local xor_fw_mac
  85         local xor_fw_chksum
  86
  87         [ -z "$mac" -o -z "$mac_offset" ] && return
  88
  89         [ $swap -gt 0 ] && mac="${mac:3:2}:${mac:0:2}:${mac:9:2}:${mac:6:2}:${mac:15:2}:${mac:12:2}"
  90
  91         [ -n "$chksum_offset" ] && {
  92                 xor_mac=${mac//:/}
  93                 xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
  94
  95                 xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  96                 xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
  97
  98                 xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  99                 xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
 100
 101                 printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
 102                         dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
 103         }
 104
 105         macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$mac_offset count=6
 106 }
 107
 108 case "$FIRMWARE" in
 109         "ath9k-eeprom-pci-0000:00:0e.0.bin" | \
 110         "ath9k-eeprom-pci-0000:01:00.0.bin" | \
 111         "ath9k-eeprom-pci-0000:02:00.0.bin")
 112                 board=$(lantiq_board_name)
 113
 114                 case "$board" in
 115                         ARV7518PW)
 116                                 ath9k_eeprom_extract "boardconfig" 1024 1
 117                                 ;;
 118                         ARV8539PW22)
 119                                 ath9k_eeprom_extract "art" 1024 1
 120                                 ;;
 121                         BTHOMEHUBV2B)
 122                                 ath9k_eeprom_extract "art" 0 1
 123                                 ath9k_patch_firmware_mac "00:00:00:00:00:00" 524 0 514
 124                                 ;;
 125                         BTHOMEHUBV3A)
 126                                 ath9k_eeprom_extract "art-copy" 0 1
 127                                 ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_ascii uboot-env ethaddr) +2) 268 0 258
 128                                 ;;
 129                         BTHOMEHUBV5A)
 130                                 ath9k_ubi_eeprom_extract "caldata" 4096 0
 131                                 ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_binary_ubi caldata 4364) +2) 268 0 258
 132                                 ;;
 133                         DGN3500*)
 134                                 ath9k_eeprom_extract "calibration" 61440 0
 135                                 ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_ascii uboot-env ethaddr) +2) 524 0 514
 136                                 ;;
 137                         FRITZ3370)
 138                                 ath9k_eeprom_extract "urlader" 2437 0
 139                                 ath9k_patch_firmware_mac "00:00:00:00:00:00" 2 0
 140                                 ;;
 141                         FRITZ7320|FRITZ7360SL)
 142                                 ath9k_eeprom_extract "urlader" 2437 0
 143                                 ath9k_patch_firmware_mac "00:00:00:00:00:00" 268 0 258
 144                                 ;;
 145                         TDW8970|TDW8980)
 146                                 ath9k_eeprom_extract "boardconfig" 135168 0
 147                                 ;;
 148                         *)
 149                                 ath9k_eeprom_die "board $board is not supported yet"
 150                                 ;;
 151                 esac
 152                 ;;
 153 esac