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| author | chaitanya.mgit@gmail.com <chaitanya.mgit@gmail.com> | 2014-05-26 18:01:44 +0530 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-05-27 17:58:58 +0200 |
| commit | a9fb54169b197f31aff24c8d6270dd1e56cde395 (patch) | |
| tree | 1a41f5b50ba2f49af825d657141d61d83ad65683 /net/wireless/genregdb.awk | |
| parent | c7d37a66e345df2fdf1aa7b2c9a6d3d53846ca5b (diff) | |
| download | lwn-a9fb54169b197f31aff24c8d6270dd1e56cde395.tar.gz lwn-a9fb54169b197f31aff24c8d6270dd1e56cde395.zip | |
regdb: Generalize the mW to dBm power conversion
Generalize the power conversion from mW to dBm
using log. This should fix the below compilation
error for country NO which adds a new power value
2000mW which is not handled earlier.
CC [M] net/wireless/wext-sme.o
CC [M] net/wireless/regdb.o
net/wireless/regdb.c:1130:1: error: Unknown undeclared here (not in
a function)
net/wireless/regdb.c:1130:9: error: expected } before power
make[2]: *** [net/wireless/regdb.o] Error 1
make[1]: *** [net/wireless] Error 2
make: *** [net] Error 2
Reported-By: John Walker <john@x109.net>
Signed-off-by: Chaitanya T K <chaitanya.mgit@gmail.com>
Acked-by: John W. Linville <linville@tuxdriver.com>
[remove unneeded parentheses, fix rounding by using %.0f]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/genregdb.awk')
| -rw-r--r-- | net/wireless/genregdb.awk | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk index b35da8dc85de..40c37fc5b67c 100644 --- a/net/wireless/genregdb.awk +++ b/net/wireless/genregdb.awk @@ -68,17 +68,7 @@ function parse_reg_rule() sub(/,/, "", units) dfs_cac = $9 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!" - } + power = 10 * log(power)/log(10) } else { dfs_cac = $8 } @@ -117,7 +107,7 @@ function parse_reg_rule() } flags = flags "0" - printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %d, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags + printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %.0f, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags rules++ } |