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

   1 #!/bin/sh
   2
   3 . /lib/functions/system.sh
   4 . /lib/ar71xx.sh
   5
   6
   7 do_patch_ath10k_firmware() {
   8         local firmware_file="/lib/firmware/ath10k/QCA988X/hw2.0/firmware-5.bin"
   9
  10         # bail out if firmware does not exist
  11         [ -f "$firmware_file" ] || {
  12                 return
  13         }
  14
  15         local mac_offset=276
  16         local mac_length=6
  17         local default_mac="00:03:07:12:34:56"
  18         local current_mac="$(hexdump -v -n $mac_length -s $mac_offset -e '5/1 "%02x:" 1/1 "%02x"' $firmware_file  2>/dev/null)"
  19
  20         # check if mac address was already patched
  21         [ "$default_mac" = "$current_mac" ] || {
  22                 return
  23         }
  24
  25         # some boards have bogus mac in otp (= directly in the PCIe card's EEPROM).
  26         # we have to patch the default mac in the firmware because we cannot change
  27         # the otp.
  28         case $(ar71xx_board_name) in
  29                 dgl-5500-a1 | tew-823dru)
  30                         local mac
  31                         mac=$(mtd_get_mac_ascii nvram wlan1_mac)
  32
  33                         cp $firmware_file /tmp/ath10k-firmware.bin
  34                         macaddr_2bin $mac | dd of=/tmp/ath10k-firmware.bin \
  35                                 conv=notrunc bs=1 seek=$mac_offset count=$mac_length
  36
  37                 ;;
  38         esac
  39         [ -f /tmp/ath10k-firmware.bin ] || {
  40                 return
  41         }
  42         cp /tmp/ath10k-firmware.bin $firmware_file
  43         rm /tmp/ath10k-firmware.bin
  44 }
  45
  46 check_patch_ath10k_firmware() {
  47         case $(ar71xx_board_name) in
  48                 dgl-5500-a1 | tew-823dru)
  49                         do_patch_ath10k_firmware
  50                 ;;
  51         esac
  52 }
  53
  54 boot_hook_add preinit_main check_patch_ath10k_firmware