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Diffstat (limited to 'gr-pager/lib/flex_parse_impl.h')
| -rw-r--r-- | gr-pager/lib/flex_parse_impl.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/gr-pager/lib/flex_parse_impl.h b/gr-pager/lib/flex_parse_impl.h new file mode 100644 index 0000000000..a4fcf03d42 --- /dev/null +++ b/gr-pager/lib/flex_parse_impl.h @@ -0,0 +1,70 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_PAGER_FLEX_PARSE_IMPL_H +#define INCLUDED_PAGER_FLEX_PARSE_IMPL_H + +#include <pager/flex_parse.h> +#include <gr_sync_block.h> +#include <gr_msg_queue.h> +#include "flex_modes.h" +#include <sstream> + +namespace gr { + namespace pager { + +#define FIELD_DELIM ((unsigned char)128) + + class flex_parse_impl : public flex_parse + { + private: + std::ostringstream d_payload; + gr_msg_queue_sptr d_queue; // Destination for decoded pages + + int d_count; // Count of received codewords + int d_datawords[88]; // 11 blocks of 8 32-bit words + + page_type_t d_type; // Current page type + int d_capcode; // Current page destination address + bool d_laddr; // Current page has long address + float d_freq; // Channel frequency + + void parse_data(); // Handle a frame's worth of data + void parse_capcode(int32_t aw1, int32_t aw2); + void parse_alphanumeric(int mw1, int mw2, int j); + void parse_numeric(int mw1, int mw2, int j); + void parse_tone_only(); + void parse_unknown(int mw1, int mw2); + + public: + flex_parse_impl(gr_msg_queue_sptr queue, float freq); + ~flex_parse_impl(); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + }; + + } /* namespace pager */ +} /* namespace gr */ + +#endif /* INCLUDED_PAGER_FLEX_PARSE_IMPL_H */ |