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 "$firmware_file" ] || {
  12                 return
  13         }
  14
  15         local firmware_md5_orig="fcb2fbd42d73a63fbf603505c718cbde"
  16         local firmware_md5_current="$(md5sum $firmware_file)"
  17         local firmware_md5_current="${firmware_md5_current%% *}"
  18
  19         # verify md5sum before patching
  20         [ "$firmware_md5_orig" != "$firmware_md5_current" ] || {
  21                 return
  22         }
  23
  24         # some boards have bogus mac in otp, patch the default mac in the firmware
  25         case $(ar71xx_board_name) in
  26                 dgl-5500-a1 | tew-823dru)
  27                         local mac
  28                         mac=$(mtd_get_mac_ascii nvram wlan1_mac)
  29
  30                         cp $firmware_file /tmp/ath10k-firmware.bin
  31                         macaddr_2bin $mac | dd of=/tmp/ath10k-firmware.bin \
  32                                 conv=notrunc bs=1 seek=276 count=6
  33
  34                 ;;
  35         esac
  36         [ -f /tmp/ath10k-firmware.bin ] || {
  37                 return
  38         }
  39         cp /tmp/ath10k-firmware.bin $firmware_file
  40         rm /tmp/ath10k-firmware.bin
  41 }
  42
  43 check_patch_ath10k_firmware() {
  44         case $(ar71xx_board_name) in
  45                 dgl-5500-a1 | tew-823dru)
  46                         do_patch_ath10k_firmware
  47                 ;;
  48         esac
  49 }
  50
  51 boot_hook_add preinit_main check_patch_ath10k_firmware