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/* -*- 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 2, 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_USRP_SERVER_H
#define INCLUDED_USRP_SERVER_H
#include <mb_mblock.h>
#include <vector>
/*!
* \brief Implements the lowest-level mblock interface to the USRP
*/
class usrp_server : public mb_mblock
{
public:
enum error_codes {
RQSTD_CAPACITY_UNAVAIL = 0,
CHANNEL_UNAVAIL = 1,
CHANNEL_INVALID = 2,
PERMISSION_DENIED = 3
};
// our ports
enum port_types {
RX_PORT = 0,
TX_PORT = 1
};
static const int N_PORTS = 4;
std::vector<mb_port_sptr> d_tx, d_rx;
mb_port_sptr d_cs;
static const int D_USB_CAPACITY = 32 * 1024 * 1024;
static const int D_MAX_CHANNELS = 16;
long d_ntx_chan;
long d_nrx_chan;
struct channel_info {
long assigned_capacity; // the capacity currently assignedby the channel
pmt_t owner; // port ID of the owner of the channel
};
struct channel_info d_chaninfo_tx[D_MAX_CHANNELS];
struct channel_info d_chaninfo_rx[D_MAX_CHANNELS];
public:
usrp_server(mb_runtime *rt, const std::string &instance_name, pmt_t user_arg);
~usrp_server();
void initial_transition();
void handle_message(mb_message_sptr msg);
protected:
static int max_capacity() { return D_USB_CAPACITY; }
private:
void handle_cmd_allocate_channel(pmt_t port_id, pmt_t data);
void handle_cmd_deallocate_channel(pmt_t port_id, pmt_t data);
void handle_cmd_xmit_raw_frame(pmt_t data);
int rx_port_index(pmt_t port_id);
int tx_port_index(pmt_t port_id);
long current_capacity_allocation();
};
#endif /* INCLUDED_USRP_SERVER_H */
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