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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>
#
# 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.
#
# 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.
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>"
print "#include \"regdb.h\""
print ""
regdb = "const struct ieee80211_regdomain *reg_regdb[] = {\n"
}
function parse_country_head() {
country=$2
sub(/:/, "", country)
printf "static const struct ieee80211_regdomain regdom_%s = {\n", country
printf "\t.alpha2 = \"%s\",\n", country
if ($NF ~ /DFS-ETSI/)
printf "\t.dfs_region = NL80211_DFS_ETSI,\n"
else if ($NF ~ /DFS-FCC/)
printf "\t.dfs_region = NL80211_DFS_FCC,\n"
else if ($NF ~ /DFS-JP/)
printf "\t.dfs_region = NL80211_DFS_JP,\n"
printf "\t.reg_rules = {\n"
active = 1
regdb = regdb "\t®dom_" country ",\n"
}
function parse_reg_rule()
{
flag_starts_at = 7
start = $1
sub(/\(/, "", start)
end = $3
bw = $5
sub(/\),/, "", bw)
gain = 0
power = $6
# power might be in mW...
units = $7
dfs_cac = 0
sub(/\(/, "", power)
sub(/\),/, "", power)
sub(/\),/, "", units)
sub(/\)/, "", units)
if (units == "mW") {
flag_starts_at = 8
power = 10 * log(power)/log(10)
if ($8 ~ /[[:digit:]]/) {
flag_starts_at = 9
dfs_cac = $8
}
} else {
if ($7 ~ /[[:digit:]]/) {
flag_starts_at = 8
dfs_cac = $7
}
}
sub(/\(/, "", dfs_cac)
sub(/\),/, "", dfs_cac)
flagstr = ""
for (i=flag_starts_at; i<=NF; i++)
flagstr = flagstr $i
split(flagstr, flagarray, ",")
flags = ""
for (arg in flagarray) {
if (flagarray[arg] == "NO-OFDM") {
flags = flags "\n\t\t\tNL80211_RRF_NO_OFDM | "
} else if (flagarray[arg] == "NO-CCK") {
flags = flags "\n\t\t\tNL80211_RRF_NO_CCK | "
} else if (flagarray[arg] == "NO-INDOOR") {
flags = flags "\n\t\t\tNL80211_RRF_NO_INDOOR | "
} else if (flagarray[arg] == "NO-OUTDOOR") {
flags = flags "\n\t\t\tNL80211_RRF_NO_OUTDOOR | "
} else if (flagarray[arg] == "DFS") {
flags = flags "\n\t\t\tNL80211_RRF_DFS | "
} else if (flagarray[arg] == "PTP-ONLY") {
flags = flags "\n\t\t\tNL80211_RRF_PTP_ONLY | "
} else if (flagarray[arg] == "PTMP-ONLY") {
flags = flags "\n\t\t\tNL80211_RRF_PTMP_ONLY | "
} else if (flagarray[arg] == "PASSIVE-SCAN") {
flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
} else if (flagarray[arg] == "NO-IBSS") {
flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
} else if (flagarray[arg] == "NO-IR") {
flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
} else if (flagarray[arg] == "AUTO-BW") {
flags = flags "\n\t\t\tNL80211_RRF_AUTO_BW | "
}
}
flags = flags "0"
printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %.0f, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags
rules++
}
function print_tail_country()
{
active = 0
printf "\t},\n"
printf "\t.n_reg_rules = %d\n", rules
printf "};\n\n"
rules = 0;
}
/^[ \t]*#/ {
# Ignore
}
!active && /^[ \t]*$/ {
# Ignore
}
!active && /country/ {
parse_country_head()
}
active && /^[ \t]*\(/ {
parse_reg_rule()
}
active && /^[ \t]*$/ {
print_tail_country()
}
END {
if (active)
print_tail_country()
print regdb "};"
print ""
print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);"
}
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