diff options
| author | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2007-09-13 23:21:41 +0000 |
|---|---|---|
| committer | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2007-09-13 23:21:41 +0000 |
| commit | 4e7d048aeb80f95b19cebed9d76b79e6cbe64a9a (patch) | |
| tree | 71eb3edd8fe57d5701ccf3aa7bf624a76e8d1ec9 /usrp/host/apps-inband/gmac.h | |
| parent | 6006b92a287fa5a23bcb7905f6f854d9c9dd4462 (diff) | |
Merged r6329:6428 of features/inband-usb + distcheck fixes into trunk.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6429 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'usrp/host/apps-inband/gmac.h')
| -rw-r--r-- | usrp/host/apps-inband/gmac.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/usrp/host/apps-inband/gmac.h b/usrp/host/apps-inband/gmac.h new file mode 100644 index 0000000000..a6d0bcb128 --- /dev/null +++ b/usrp/host/apps-inband/gmac.h @@ -0,0 +1,91 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007 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 this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef INCLUDED_GMAC_H +#define INCLUDED_GMAC_H + +#include <mb_mblock.h> + +class gmac; + +class gmac : public mb_mblock +{ + + // The state is used to determine how to handle incoming messages and of + // course, the state of the MAC protocol. + enum state_t { + INIT, + OPENING_USRP, + ALLOCATING_CHANNELS, + INIT_GMAC, + IDLE, + CLOSING_CHANNELS, + CLOSING_USRP, + }; + state_t d_state; + + // Ports used for applications to connect to this block + mb_port_sptr d_tx, d_rx, d_cs; + + // Ports to connect to usrp_server (us) + mb_port_sptr d_us_tx, d_us_rx, d_us_cs; + + // The channel numbers assigned for use + pmt_t d_us_rx_chan, d_us_tx_chan; + + pmt_t d_which_usrp; + + bool d_carrier_sense; + long d_cs_thresh; + long d_cs_deadline; + + enum FPGA_REGISTERS { + REG_CS_THRESH = 1, + REG_CS_DEADLINE = 2 + }; + + public: + gmac(mb_runtime *rt, const std::string &instance_name, pmt_t user_arg); + ~gmac(); + void handle_message(mb_message_sptr msg); + + private: + void define_ports(); + void initialize_usrp(); + void initialize_gmac(); + void set_carrier_sense(bool toggle, long threshold, long deadline, pmt_t invocation); + void allocate_channels(); + void enter_receiving(); + void enter_idle(); + void close_channels(); + void open_usrp(); + void close_usrp(); + void handle_cmd_tx_pkt(pmt_t data); + void handle_response_xmit_raw_frame(pmt_t data); + bool carrier_sense_pkt(pmt_t pkt_properties); + void handle_cmd_carrier_sense_enable(pmt_t data); + void handle_cmd_carrier_sense_threshold(pmt_t data); + void handle_cmd_carrier_sense_disable(pmt_t data); + void handle_cmd_carrier_sense_deadline(pmt_t data); + +}; + +#endif // INCLUDED_GMAC_H |