target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom

   1 #!/bin/sh
   2
   3 rt2x00_eeprom_die() {
   4         echo "rt2x00 eeprom: " "$*"
   5         exit 1
   6 }
   7
   8 rt2x00_eeprom_extract() {
   9         local part=$1
  10         local offset=$2
  11         local count=$3
  12         local mtd
  13
  14         mtd=$(find_mtd_part $part)
  15         [ -n "$mtd" ] || \
  16                 rt2x00_eeprom_die "no mtd device found for partition $part"
  17
  18         dd if=$mtd of=/lib/firmware/$FIRMWARE iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
  19                 rt2x00_eeprom_die "failed to extract from $mtd"
  20 }
  21
  22 jboot_eeprom_extract() {
  23         local part=$1
  24         local offset=$2
  25         local mtd
  26
  27         mtd=$(find_mtd_part $part)
  28         [ -n "$mtd" ] || \
  29                 rt2x00_eeprom_die "no mtd device found for partition $part"
  30
  31         jboot_config_read -i $mtd -o $offset -e /lib/firmware/$FIRMWARE  2>/dev/null || \
  32                 rt2x00_eeprom_die "failed to extract from $mtd"
  33 }
  34
  35 rt2x00_eeprom_set_macaddr() {
  36         local macaddr=$1
  37
  38         [ -n "$macaddr" ] || \
  39                 rt2x00_eeprom_die "invalid wlan mac address"
  40
  41         macaddr_2bin $macaddr | dd of=/lib/firmware/$FIRMWARE \
  42                                 conv=notrunc oflag=seek_bytes bs=6 seek=4 count=1 2>/dev/null || \
  43                 rt2x00_eeprom_die "failed to write mac address to eeprom file"
  44 }
  45
  46 FW="/lib/firmware/$FIRMWARE"
  47 [ -e "$FW" ] && exit 0
  48
  49 . /lib/functions.sh
  50 . /lib/functions/system.sh
  51
  52 board=$(board_name)
  53
  54 case "$FIRMWARE" in
  55 "soc_wmac.eeprom")
  56         case $board in
  57         dlink,dwr-116-a1|\
  58         dlink,dwr-118-a1|\
  59         dlink,dwr-118-a2|\
  60         dlink,dwr-921-c1|\
  61         dlink,dwr-922-e2|\
  62         lava,lr-25g001)
  63                 wan_mac=$(jboot_config_read -m -i $(find_mtd_part "config") -o 0xE000)
  64                 wifi_mac=$(macaddr_add "$wan_mac" 1)
  65                 jboot_eeprom_extract "config" 0xE000
  66                 rt2x00_eeprom_set_macaddr $wifi_mac
  67                 ;;
  68         tiny-ac)
  69                 wifi_mac=$(mtd_get_mac_ascii u-boot-env INIC_MAC_ADDR)
  70                 rt2x00_eeprom_extract "factory" 0 512
  71                 rt2x00_eeprom_set_macaddr $wifi_mac
  72                 ;;
  73         *)
  74                 rt2x00_eeprom_die "Please define mtd-eeprom in $board DTS file!"
  75                 ;;
  76         esac
  77         ;;
  78 esac