[wireless-regdb] [PATCH] Correctly parse power with gain and eirp

[Chen-Yu Tsai]

On Thu, Sep 14, 2023 at 12:16 PM Rusty Howell <rustyhowell at gmail.com> wrote:
>
> From 082a38a3de11701ea1edf40a2f3268ec5115c691 Mon Sep 17 00:00:00 2001
> From: Rusty Howell <rhowell at control4.com>
> Date: Wed, 13 Sep 2023 11:13:19 -0600
> Subject: [PATCH] Correctly parse power with gain and eirp
>
> Parse a power entry like "(6, 20)" or "(20", or "(N/A, 20)".
> Previously, the example ASCII file format show in this page would not parse.
> https://wireless.wiki.kernel.org/en/developers/regulatory/wireless-regdb#mailing_list_for_regulatory_updates

Antenna gain was removed from the database in commit e56cd96
("wireless-regdb: remove antenna gain").

The wiki needs to be updated.

ChenYu

> ---
>  dbparse.py | 17 +++++++++++++----
>  1 file changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/dbparse.py b/dbparse.py
> index 1e87813..b36ff9c 100755
> --- a/dbparse.py
> +++ b/dbparse.py
> @@ -264,16 +264,25 @@ class DBParser(object):
>
>      def _parse_power_def(self, pname, line, dupwarn=True):
>          try:
> -            max_eirp = line
> -            if max_eirp == 'N/A':
> -                max_eirp = '0'
> -            max_ant_gain = float(0)
> +            max_eirp = ''
> +            max_ant_gain = ''
> +            if ',' in line:
> +                max_ant_gain, max_eirp = line.split(',')
> +                if max_ant_gain == 'N/A':
> +                    max_ant_gain = '0'
> +            else:
> +                max_ant_gain = '0'
> +                max_eirp = line
> +                if max_eirp == 'N/A':
> +                    max_eirp = 0.0
> +
>              def conv_pwr(pwr):
>                  if pwr.endswith('mW'):
>                      pwr = float(pwr[:-2])
>                      return 10.0 * math.log10(pwr)
>                  else:
>                      return float(pwr)
> +            max_ant_gain = float(max_ant_gain)
>              max_eirp = conv_pwr(max_eirp)
>          except ValueError:
>              self._syntax_error("invalid power data")
> --
> 2.25.1
>
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