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