target/linux/ath79/base-files/etc/hotplug.d/firmware/11-ath10k-caldata

   1 #!/bin/sh
   2
   3 . /lib/functions/k2t.sh
   4
   5 # xor multiple hex values of the same length
   6 xor() {
   7         local val
   8         local ret="0x$1"
   9         local retlen=${#1}
  10
  11         shift
  12         while [ -n "$1" ]; do
  13                 val="0x$1"
  14                 ret=$((ret ^ val))
  15                 shift
  16         done
  17
  18         printf "%0${retlen}x" "$ret"
  19 }
  20
  21 ath10kcal_die() {
  22         echo "ath10cal: " "$*"
  23         exit 1
  24 }
  25
  26 ath10kcal_from_file() {
  27         local source=$1
  28         local offset=$2
  29         local count=$3
  30
  31         dd if=$source of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 2>/dev/null || \
  32                 ath10kcal_die "failed to extract calibration data from $source"
  33 }
  34
  35 ath10kcal_extract() {
  36         local part=$1
  37         local offset=$2
  38         local count=$3
  39         local mtd
  40
  41         mtd=$(find_mtd_chardev $part)
  42         [ -n "$mtd" ] || \
  43                 ath10kcal_die "no mtd device found for partition $part"
  44
  45         dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 2>/dev/null || \
  46                 ath10kcal_die "failed to extract calibration data from $mtd"
  47 }
  48
  49 ath10kcal_patch_mac() {
  50         local mac=$1
  51
  52         [ -z "$mac" ] && return
  53
  54         macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=6 count=6
  55 }
  56
  57 ath10kcal_patch_mac_crc() {
  58         local mac=$1
  59         local mac_offset=6
  60         local chksum_offset=2
  61         local xor_mac
  62         local xor_fw_mac
  63         local xor_fw_chksum
  64
  65         xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  66         xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
  67
  68         ath10kcal_patch_mac "$mac" && {
  69                 xor_mac=${mac//:/}
  70                 xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
  71
  72                 xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
  73                 xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
  74
  75                 printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
  76                         dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
  77         }
  78 }
  79
  80 [ -e /lib/firmware/$FIRMWARE ] && exit 0
  81
  82 . /lib/functions.sh
  83 . /lib/functions/system.sh
  84
  85 board=$(board_name)
  86
  87 case "$FIRMWARE" in
  88 "ath10k/cal-pci-0000:00:00.0.bin")
  89         case $board in
  90         "openmesh,om5p-ac-v2")
  91                 ath10kcal_extract "ART" 20480 2116
  92                 ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) +16)
  93                 ;;
  94         "tplink,tl-archer-c7-v2")
  95                 ath10kcal_extract "art" 20480 2116
  96                 ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth1/address) -2)
  97                 ;;
  98         "ubnt,unifiac-lite"|\
  99         "ubnt,unifiac-mesh"|\
 100         "ubnt,unifiac-pro")
 101                 ath10kcal_extract "EEPROM" 20480 2116
 102                 ;;
 103         esac
 104         ;;
 105 "ath10k/pre-cal-pci-0000:00:00.0.bin")
 106         case $board in
 107         phicomm,k2t)
 108                 ath10kcal_extract "art" 20480 12064
 109                 ath10kcal_patch_mac_crc $(k2t_get_mac "5g_mac")
 110
 111                 ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \
 112                         /lib/firmware/ath10k/QCA9888/hw2.0/board.bin
 113                 ;;
 114         esac
 115         ;;
 116 *)
 117         exit 1
 118         ;;
 119 esac