target/linux/ipq806x/base-files/etc/hotplug.d/firmware/11-ath10k-caldata

   1 #!/bin/sh
   2
   3 # xor multiple hex values of the same length
   4 xor() {
   5         local val
   6         local ret="0x$1"
   7         local retlen=${#1}
   8
   9         shift
  10         while [ -n "$1" ]; do
  11                 val="0x$1"
  12                 ret=$((ret ^ val))
  13                 shift
  14         done
  15
  16         printf "%0${retlen}x" "$ret"
  17 }
  18
  19 ath10kcal_die() {
  20         echo "ath10cal: " "$*"
  21         exit 1
  22 }
  23
  24 ath10kcal_from_file() {
  25         local source=$1
  26         local offset=$2
  27         local count=$3
  28
  29         dd if=$source of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 2>/dev/null || \
  30                 ath10kcal_die "failed to extract calibration data from $source"
  31 }
  32
  33 ath10kcal_extract() {
  34         local part=$1
  35         local offset=$2
  36         local count=$3
  37         local mtd
  38
  39         mtd=$(find_mtd_chardev $part)
  40         [ -n "$mtd" ] || \
  41                 ath10kcal_die "no mtd device found for partition $part"
  42
  43         dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 2>/dev/null || \
  44                 ath10kcal_die "failed to extract calibration data from $mtd"
  45 }
  46
  47 ath10kcal_patch_mac_crc() {
  48         local mac=$1
  49         local mac_offset=6
  50         local chksum_offset=2
  51         local xor_mac
  52         local xor_fw_mac
  53         local xor_fw_chksum
  54
  55         [ -z "$mac" ] && return
  56
  57         xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  58         xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
  59
  60         macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=6 count=6
  61
  62         xor_mac=${mac//:/}
  63         xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
  64
  65         xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  66         xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
  67
  68         printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
  69                 dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
  70 }
  71
  72 [ -e /lib/firmware/$FIRMWARE ] && exit 0
  73
  74 . /lib/functions.sh
  75 . /lib/functions/system.sh
  76
  77 board=$(board_name)
  78
  79 case "$FIRMWARE" in
  80 "ath10k/pre-cal-pci-0000:01:00.0.bin")
  81         case $board in
  82         linksys,ea8500)
  83                 ath10kcal_extract "art" 4096 12064
  84                 ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_ascii devinfo hw_mac_addr) +1)
  85                 ;;
  86         nec,wg2600hp)
  87                 ath10kcal_extract "ART" 4096 12064
  88                 ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_binary PRODUCTDATA 12) +1)
  89                 ;;
  90         netgear,d7800 |\
  91         netgear,r7500v2 |\
  92         netgear,r7800)
  93                 ath10kcal_extract "art" 4096 12064
  94                 ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_binary art 6) +1)
  95                 ;;
  96         tplink,c2600)
  97                 ath10kcal_extract "radio" 4096 12064
  98                 ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_binary default-mac 8) -1)
  99                 ;;
 100         tplink,vr2600v)
 101                 ath10kcal_extract "ART" 4096 12064
 102                 ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_binary default-mac 0) -1)
 103                 ;;
 104         zyxel,nbg6817)
 105                 ath10kcal_extract "0:ART" 4096 12064
 106                 ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_ascii 0:APPSBLENV ethaddr) +1)
 107                 ;;
 108         esac
 109         ;;
 110 "ath10k/pre-cal-pci-0001:01:00.0.bin")
 111         case $board in
 112         linksys,ea8500)
 113                 ath10kcal_extract "art" 20480 12064
 114                 ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_ascii devinfo hw_mac_addr) +2)
 115                 ;;
 116         nec,wg2600hp)
 117                 ath10kcal_extract "ART" 20480 12064
 118                 ath10kcal_patch_mac_crc $(mtd_get_mac_binary PRODUCTDATA 12)
 119                 ;;
 120         netgear,d7800 |\
 121         netgear,r7500v2 |\
 122         netgear,r7800)
 123                 ath10kcal_extract "art" 20480 12064
 124                 ath10kcal_patch_mac_crc $(macaddr_add $(mtd_get_mac_binary art 6) +2)
 125                 ;;
 126         tplink,c2600)
 127                 ath10kcal_extract "radio" 20480 12064
 128                 ath10kcal_patch_mac_crc $(mtd_get_mac_binary default-mac 8)
 129                 ;;
 130         tplink,vr2600v)
 131                 ath10kcal_extract "ART" 20480 12064
 132                 ath10kcal_patch_mac_crc $(mtd_get_mac_binary default-mac 0)
 133                 ;;
 134         zyxel,nbg6817)
 135                 ath10kcal_extract "0:ART" 20480 12064
 136                 ath10kcal_patch_mac_crc $(mtd_get_mac_ascii 0:APPSBLENV ethaddr)
 137                 ;;
 138         esac
 139         ;;
 140 *)
 141         exit 1
 142         ;;
 143 esac