Eric Lee / smarc-fsl-linux-kernel

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net/wireless/genregdb.awk 3.38 KB
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3b377ea9d   John W. Linville   wireless: support... 
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  #!/usr/bin/awk -f
  #
  # genregdb.awk -- generate regdb.c from db.txt
  #
  # Actually, it reads from stdin (presumed to be db.txt) and writes
  # to stdout (presumed to be regdb.c), but close enough...
  #
  # Copyright 2009 John W. Linville <linville@tuxdriver.com>
  #
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  # Permission to use, copy, modify, and/or distribute this software for any
  # purpose with or without fee is hereby granted, provided that the above
  # copyright notice and this permission notice appear in all copies.
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  #
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  # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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  BEGIN {
  	active = 0
  	rules = 0;
  	print "/*"
  	print " * DO NOT EDIT -- file generated from data in db.txt"
  	print " */"
  	print ""
  	print "#include <linux/nl80211.h>"
  	print "#include <net/cfg80211.h>"
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  	print "#include \"regdb.h\""
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  	print ""
  	regdb = "const struct ieee80211_regdomain *reg_regdb[] = {
  "
  }
  
  /^[ \t]*#/ {
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  	# Ignore
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  }
  
  !active && /^[ \t]*$/ {
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  	# Ignore
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  }
  
  !active && /country/ {
  	country=$2
  	sub(/:/, "", country)
  	printf "static const struct ieee80211_regdomain regdom_%s = {
  ", country
  	printf "\t.alpha2 = \"%s\",
  ", country
  	printf "\t.reg_rules = {
  "
  	active = 1
  	regdb = regdb "\t&regdom_" country ",
  "
  }
  
  active && /^[ \t]*\(/ {
  	start = $1
  	sub(/\(/, "", start)
  	end = $3
  	bw = $5
  	sub(/\),/, "", bw)
  	gain = $6
  	sub(/\(/, "", gain)
  	sub(/,/, "", gain)
  	power = $7
  	sub(/\)/, "", power)
  	sub(/,/, "", power)
  	# power might be in mW...
  	units = $8
  	sub(/\)/, "", units)
  	sub(/,/, "", units)
  	if (units == "mW") {
  		if (power == 100) {
  			power = 20
  		} else if (power == 200) {
  			power = 23
  		} else if (power == 500) {
  			power = 27
  		} else if (power == 1000) {
  			power = 30
  		} else {
  			print "Unknown power value in database!"
  		}
  	}
  	flagstr = ""
  	for (i=8; i<=NF; i++)
  		flagstr = flagstr $i
  	split(flagstr, flagarray, ",")
  	flags = ""
  	for (arg in flagarray) {
  		if (flagarray[arg] == "NO-OFDM") {
  			flags = flags "
  \t\t\tNL80211_RRF_NO_OFDM | "
  		} else if (flagarray[arg] == "NO-CCK") {
  			flags = flags "
  \t\t\tNL80211_RRF_NO_CCK | "
  		} else if (flagarray[arg] == "NO-INDOOR") {
  			flags = flags "
  \t\t\tNL80211_RRF_NO_INDOOR | "
  		} else if (flagarray[arg] == "NO-OUTDOOR") {
  			flags = flags "
  \t\t\tNL80211_RRF_NO_OUTDOOR | "
  		} else if (flagarray[arg] == "DFS") {
  			flags = flags "
  \t\t\tNL80211_RRF_DFS | "
  		} else if (flagarray[arg] == "PTP-ONLY") {
  			flags = flags "
  \t\t\tNL80211_RRF_PTP_ONLY | "
  		} else if (flagarray[arg] == "PTMP-ONLY") {
  			flags = flags "
  \t\t\tNL80211_RRF_PTMP_ONLY | "
  		} else if (flagarray[arg] == "PASSIVE-SCAN") {
  			flags = flags "
  \t\t\tNL80211_RRF_PASSIVE_SCAN | "
  		} else if (flagarray[arg] == "NO-IBSS") {
  			flags = flags "
  \t\t\tNL80211_RRF_NO_IBSS | "
  		}
  	}
  	flags = flags "0"
  	printf "\t\tREG_RULE(%d, %d, %d, %d, %d, %s),
  ", start, end, bw, gain, power, flags
  	rules++
  }
  
  active && /^[ \t]*$/ {
  	active = 0
  	printf "\t},
  "
  	printf "\t.n_reg_rules = %d
  ", rules
  	printf "};
  
  "
  	rules = 0;
  }
  
  END {
  	print regdb "};"
  	print ""
  	print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);"
  }