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//
// Copyright 2010 Ettus Research LLC
//
// 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/>.
//
#include <usrp_uhd/usrp/dboard/manager.hpp>
#include <usrp_uhd/utils.hpp>
#include <boost/assign/list_of.hpp>
#include <boost/format.hpp>
#include <boost/foreach.hpp>
#include "dboards.hpp"
using namespace usrp_uhd;
using namespace usrp_uhd::usrp::dboard;
using namespace boost::assign;
/***********************************************************************
* register internal dboards
*
* Register internal/known dboards located in this build tree.
* Each board should have entries below mapping an id to a constructor.
* The xcvr type boards should register both rx and tx sides.
*
* This function will be called before new boards are registered.
* This allows for internal boards to be externally overridden.
* This function will also be called when creating a new manager
* to ensure that the maps are filled with the entries below.
**********************************************************************/
static void register_internal_dboards(void){
//ensure that this function can only be called once per instance
static bool called = false;
if (called) return; called = true;
//register the known dboards (dboard id, constructor, subdev names)
manager::register_subdevs(ID_BASIC_TX, &basic_tx::make, list_of(""));
manager::register_subdevs(ID_BASIC_RX, &basic_rx::make, list_of("a")("b")("ab"));
}
/***********************************************************************
* storage and registering for dboards
**********************************************************************/
//map a dboard id to a dboard constructor
static std::map<dboard_id_t, manager::dboard_ctor_t> id_to_ctor_map;
//map a dboard constructor to subdevice names
static std::map<manager::dboard_ctor_t, prop_names_t> ctor_to_names_map;
void manager::register_subdevs(
dboard_id_t dboard_id,
dboard_ctor_t dboard_ctor,
const prop_names_t &subdev_names
){
register_internal_dboards(); //always call first
id_to_ctor_map[dboard_id] = dboard_ctor;
ctor_to_names_map[dboard_ctor] = subdev_names;
}
/***********************************************************************
* internal helper classes
**********************************************************************/
/*!
* A special wax proxy object that forwards calls to a subdev.
* A sptr to an instance will be used in the properties structure.
*/
class subdev_proxy : boost::noncopyable, public wax::obj{
public:
typedef boost::shared_ptr<subdev_proxy> sptr;
enum type_t{RX_TYPE, TX_TYPE};
//structors
subdev_proxy(base::sptr subdev, type_t type)
: _subdev(subdev), _type(type){
/* NOP */
}
~subdev_proxy(void){
/* NOP */
}
private:
base::sptr _subdev;
type_t _type;
//forward the get calls to the rx or tx
void get(const wax::type &key, wax::type &val){
switch(_type){
case RX_TYPE: return _subdev->rx_get(key, val);
case TX_TYPE: return _subdev->tx_get(key, val);
}
}
//forward the set calls to the rx or tx
void set(const wax::type &key, const wax::type &val){
switch(_type){
case RX_TYPE: return _subdev->rx_set(key, val);
case TX_TYPE: return _subdev->tx_set(key, val);
}
}
};
/***********************************************************************
* dboard manager methods
**********************************************************************/
static manager::dboard_ctor_t const& get_dboard_ctor(
dboard_id_t dboard_id,
std::string const& xx_type
){
//verify that there is a registered constructor for this id
if (id_to_ctor_map.count(dboard_id) == 0){
throw std::runtime_error(str(
boost::format("Unknown %s dboard id: 0x%04x") % xx_type % dboard_id
));
}
//return the dboard constructor for this id
return id_to_ctor_map[dboard_id];
}
manager::manager(
dboard_id_t rx_dboard_id,
dboard_id_t tx_dboard_id,
interface::sptr dboard_interface
){
register_internal_dboards(); //always call first
const dboard_ctor_t rx_dboard_ctor = get_dboard_ctor(rx_dboard_id, "rx");
const dboard_ctor_t tx_dboard_ctor = get_dboard_ctor(tx_dboard_id, "tx");
//make xcvr subdevs (make one subdev for both rx and tx dboards)
if (rx_dboard_ctor == tx_dboard_ctor){
BOOST_FOREACH(std::string name, ctor_to_names_map[rx_dboard_ctor]){
base::sptr xcvr_dboard = rx_dboard_ctor(
base::ctor_args_t(name, dboard_interface)
);
_rx_dboards[name] = xcvr_dboard;
_tx_dboards[name] = xcvr_dboard;
}
}
//make tx and rx subdevs (separate subdevs for rx and tx dboards)
else{
//make the rx subdevs
BOOST_FOREACH(std::string name, ctor_to_names_map[rx_dboard_ctor]){
_rx_dboards[name] = rx_dboard_ctor(
base::ctor_args_t(name, dboard_interface)
);
}
//make the tx subdevs
BOOST_FOREACH(std::string name, ctor_to_names_map[tx_dboard_ctor]){
_tx_dboards[name] = tx_dboard_ctor(
base::ctor_args_t(name, dboard_interface)
);
}
}
}
manager::~manager(void){
/* NOP */
}
prop_names_t manager::get_rx_subdev_names(void){
return get_map_keys(_rx_dboards);
}
prop_names_t manager::get_tx_subdev_names(void){
return get_map_keys(_tx_dboards);
}
wax::obj::sptr manager::get_rx_subdev(const std::string &subdev_name){
if (_rx_dboards.count(subdev_name) == 0) throw std::invalid_argument(
str(boost::format("Unknown rx subdev name %s") % subdev_name)
);
return wax::obj::sptr(new subdev_proxy(
_rx_dboards[subdev_name], subdev_proxy::RX_TYPE)
);
}
wax::obj::sptr manager::get_tx_subdev(const std::string &subdev_name){
if (_tx_dboards.count(subdev_name) == 0) throw std::invalid_argument(
str(boost::format("Unknown tx subdev name %s") % subdev_name)
);
return wax::obj::sptr(new subdev_proxy(
_tx_dboards[subdev_name], subdev_proxy::TX_TYPE)
);
}
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