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() {
  51         local part=$1
  52         local offset=$2
  53         local swap=$3
  54         local mtd
  55
  56         mtd=$(find_mtd_chardev $part)
  57         [ -n "$mtd" ] || \
  58                 ath9k_eeprom_die "no mtd device found for partition $part"
  59
  60         ath9k_eeprom_extract_raw $mtd $offset $swap
  61 }
  62
  63 ath9k_ubi_eeprom_extract() {
  64         local part=$1
  65         local offset=$2
  66         local swap=$3
  67         local ubidev=$(nand_find_ubi $CI_UBIPART)
  68         local ubi
  69
  70         ubi=$(nand_find_volume $ubidev $part)
  71         [ -n "$ubi" ] || \
  72                 ath9k_eeprom_die "no UBI volume found for $part"
  73
  74         ath9k_eeprom_extract_raw /dev/$ubi $offset $swap
  75 }
  76
  77 ath9k_patch_fw_mac_crc() {
  78         local mac=$1
  79         local mac_offset=$2
  80         local chksum_offset=$((mac_offset - 10))
  81
  82         ath9k_patch_fw_mac "${mac}" "${mac_offset}" "${chksum_offset}"
  83 }
  84
  85 ath9k_patch_fw_mac() {
  86         local mac=$1
  87         local mac_offset=$2
  88         local chksum_offset=$3
  89         local xor_mac
  90         local xor_fw_mac
  91         local xor_fw_chksum
  92
  93         [ -z "$mac" -o -z "$mac_offset" ] && return
  94
  95         [ -n "$chksum_offset" ] && {
  96                 xor_mac=${mac//:/}
  97                 xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
  98
  99                 xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
 100                 xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
 101
 102                 xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
 103                 xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
 104
 105                 printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
 106                         dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
 107         }
 108
 109         macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$mac_offset count=6
 110 }
 111
 112 case "$FIRMWARE" in
 113         "ath9k-eeprom-pci-0000:00:0e.0.bin" | \
 114         "ath9k-eeprom-pci-0000:01:00.0.bin" | \
 115         "ath9k-eeprom-pci-0000:02:00.0.bin")
 116                 board=$(board_name)
 117
 118                 case "$board" in
 119                         ARV7518PW)
 120                                 ath9k_eeprom_extract "boardconfig" 1024 1
 121                                 ;;
 122                         ARV8539PW22)
 123                                 ath9k_eeprom_extract "art" 1024 1
 124                                 ;;
 125                         BTHOMEHUBV2B)
 126                                 ath9k_eeprom_extract "art" 0 1
 127                                 ath9k_patch_fw_mac_crc "00:00:00:00:00:00" 524
 128                                 ;;
 129                         BTHOMEHUBV3A)
 130                                 ath9k_eeprom_extract "art-copy" 0 1
 131                                 ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_ascii uboot_env ethaddr) +2) 268
 132                                 ;;
 133                         BTHOMEHUBV5A)
 134                                 ath9k_ubi_eeprom_extract "caldata" 4096 0
 135                                 ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_binary_ubi caldata 4364) +2) 268
 136                                 ;;
 137                         DGN3500*)
 138                                 ath9k_eeprom_extract "calibration" 61440 0
 139                                 ath9k_patch_fw_mac_crc $(macaddr_add $(mtd_get_mac_ascii uboot-env ethaddr) +2) 524
 140                                 ;;
 141                         FRITZ3370|FRITZ7320|FRITZ7360SL)
 142                                 ath9k_eeprom_extract "urlader" 2437 0
 143                                 ;;
 144                         TDW8970|TDW8980)
 145                                 ath9k_eeprom_extract "boardconfig" 135168 0
 146                                 ;;
 147                         *)
 148                                 ath9k_eeprom_die "board $board is not supported yet"
 149                                 ;;
 150                 esac
 151                 ;;
 152 esac