| ## |
| ## This file is part of the libsigrokdecode project. |
| ## |
| ## Copyright (C) 2012 Bert Vermeulen <bert@biot.com> |
| ## |
| ## This program is free software; you can redistribute it and/or modify |
| ## it under the terms of the GNU General Public License as published by |
| ## the Free Software Foundation; either version 3 of the License, or |
| ## (at your option) any later version. |
| ## |
| ## This program is distributed in the hope that it will be useful, |
| ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
| ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| ## GNU General Public License for more details. |
| ## |
| ## You should have received a copy of the GNU General Public License |
| ## along with this program; if not, see <http://www.gnu.org/licenses/>. |
| ## |
| |
| ''' |
| This is a generic I²C filtering protocol decoder. |
| |
| It takes input from the I²C protocol decoder and removes all traffic |
| except that from/to the specified slave address and/or direction. |
| |
| It then outputs the filtered data again as OUTPUT_PROTO of type/format 'i2c' |
| (up the protocol decoder stack). No annotations are output. |
| |
| The I²C slave address to filter out should be passed in as an option |
| 'address', as an integer. A specific read or write operation can be selected |
| with the 'direction' option, which should be 'read', 'write', or 'both'. |
| |
| Both of these are optional; if no options are specified the entire payload |
| of the I²C session will be output. |
| ''' |
| |
| from .pd import Decoder |
