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=$2
  35         local size=4096
  36
  37         dd if=$source of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$size 2>/dev/null || \
  38                         ath9k_eeprom_die "failed to extract from $mtd"
  39 }
  40
  41 ath9k_eeprom_extract() {
  42         local part=$1
  43         local offset=$2
  44         local mtd
  45
  46         mtd=$(find_mtd_chardev $part)
  47         [ -n "$mtd" ] || \
  48                 ath9k_eeprom_die "no mtd device found for partition $part"
  49
  50         ath9k_eeprom_extract_raw $mtd $offset
  51 }
  52
  53 ath9k_ubi_eeprom_extract() {
  54         local part=$1
  55         local offset=$2
  56         local ubidev=$(nand_find_ubi $CI_UBIPART)
  57         local ubi
  58
  59         ubi=$(nand_find_volume $ubidev $part)
  60         [ -n "$ubi" ] || \
  61                 ath9k_eeprom_die "no UBI volume found for $part"
  62
  63         ath9k_eeprom_extract_raw /dev/$ubi $offset
  64 }
  65
  66 ath9k_patch_firmware_mac() {
  67         local mac=$1
  68         local mac_offset=$2
  69         local swap=$3
  70         local chksum_offset=$4
  71         local xor_mac
  72         local xor_fw_mac
  73         local xor_fw_chksum
  74
  75         [ -z "$mac" -o -z "$mac_offset" ] && return
  76
  77         [ $swap -gt 0 ] && mac="${mac:3:2}:${mac:0:2}:${mac:9:2}:${mac:6:2}:${mac:15:2}:${mac:12:2}"
  78
  79         [ -n "$chksum_offset" ] && {
  80                 xor_mac=${mac//:/}
  81                 xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
  82
  83                 xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  84                 xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
  85
  86                 xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  87                 xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
  88
  89                 printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
  90                         dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
  91         }
  92
  93         macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$mac_offset count=6
  94 }
  95
  96 case "$FIRMWARE" in
  97         "ath9k-eeprom-pci-0000:00:0e.0.bin" | \
  98         "ath9k-eeprom-pci-0000:01:00.0.bin" | \
  99         "ath9k-eeprom-pci-0000:02:00.0.bin")
 100                 board=$(lantiq_board_name)
 101
 102                 case "$board" in
 103                         ARV7518PW)
 104                                 ath9k_eeprom_extract "boardconfig" 1024
 105                                 ;;
 106                         ARV8539PW22)
 107                                 ath9k_eeprom_extract "art" 1024
 108                                 ;;
 109                         BTHOMEHUBV2B)
 110                                 ath9k_eeprom_extract "art" 0
 111                                 ath9k_patch_firmware_mac "00:00:00:00:00:00" 524 1 514
 112                                 ;;
 113                         BTHOMEHUBV3A)
 114                                 ath9k_eeprom_extract "art-copy" 0
 115                                 ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_ascii uboot-env ethaddr) +2) 268 1 258
 116                                 ;;
 117                         BTHOMEHUBV5A)
 118                                 ath9k_eeprom_extract "caldata" 4096
 119                                 ;;
 120                         DGN3500*)
 121                                 ath9k_eeprom_extract "calibration" 61440
 122                                 ath9k_patch_firmware_mac $(macaddr_add $(mtd_get_mac_ascii uboot-env ethaddr) +2) 524 0 514
 123                                 ;;
 124                         FRITZ3370)
 125                                 ath9k_eeprom_extract "urlader" 2437
 126                                 ath9k_patch_firmware_mac "00:00:00:00:00:00" 2 0
 127                                 ;;
 128                         FRITZ7320|FRITZ7360SL)
 129                                 ath9k_eeprom_extract "urlader" 2437
 130                                 ath9k_patch_firmware_mac "00:00:00:00:00:00" 268 0 258
 131                                 ;;
 132                         TDW8970|TDW8980)
 133                                 ath9k_eeprom_extract "boardconfig" 135168
 134                                 ;;
 135                         *)
 136                                 ath9k_eeprom_die "board $board is not supported yet"
 137                                 ;;
 138                 esac
 139                 ;;
 140 esac