target/linux/ar71xx/base-files/lib/preinit/82_patch_ath10k

   1 #!/bin/sh
   2
   3 . /lib/functions.sh
   4 . /lib/functions/system.sh
   5
   6 do_patch_ath10k_firmware() {
   7         local firmware_file="/lib/firmware/ath10k/QCA988X/hw2.0/firmware-5.bin"
   8
   9         # bail out if firmware does not exist
  10         [ -f "$firmware_file" ] || return
  11
  12         local mac_offset=276
  13         local mac_length=6
  14         local default_mac="00:03:07:12:34:56"
  15         local current_mac="$(hexdump -v -n $mac_length -s $mac_offset -e '5/1 "%02x:" 1/1 "%02x"' $firmware_file  2>/dev/null)"
  16
  17         # check if mac address was already patched
  18         [ "$default_mac" = "$current_mac" ] || return
  19
  20         # some boards have bogus mac in otp (= directly in the PCIe card's EEPROM).
  21         # we have to patch the default mac in the firmware because we cannot change
  22         # the otp.
  23         case $(board_name) in
  24         dgl-5500-a1|\
  25         tew-823dru)
  26                 local mac
  27                 mac=$(mtd_get_mac_ascii nvram wlan1_mac)
  28
  29                 cp $firmware_file /tmp/ath10k-firmware.bin
  30                 macaddr_2bin $mac | dd of=/tmp/ath10k-firmware.bin \
  31                         conv=notrunc bs=1 seek=$mac_offset count=$mac_length
  32                 ;;
  33         esac
  34
  35         [ -f /tmp/ath10k-firmware.bin ] || return
  36
  37         cp /tmp/ath10k-firmware.bin $firmware_file
  38         rm /tmp/ath10k-firmware.bin
  39 }
  40
  41 check_patch_ath10k_firmware() {
  42         case $(board_name) in
  43         dgl-5500-a1|\
  44         tew-823dru)
  45                 do_patch_ath10k_firmware
  46                 ;;
  47         esac
  48 }
  49
  50 boot_hook_add preinit_main check_patch_ath10k_firmware