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authorNick Foster <nick@nerdnetworks.org>2010-07-27 16:53:05 -0700
committerNick Foster <nick@nerdnetworks.org>2010-07-27 16:53:05 -0700
commit92e7a28de3f022f52da3fb9232a8287f6fa07d46 (patch)
tree02c37b732049e50872bd18b764dcfb8041e341e1 /host/lib/gain_handler.cpp
parentaeedd5a53e017e2c14a86dff521353ff6016a849 (diff)
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This is a manual merge of codec_gains2 into usrp2py.
Diffstat (limited to 'host/lib/gain_handler.cpp')
-rw-r--r--host/lib/gain_handler.cpp177
1 files changed, 0 insertions, 177 deletions
diff --git a/host/lib/gain_handler.cpp b/host/lib/gain_handler.cpp
deleted file mode 100644
index 36e2e8ed3..000000000
--- a/host/lib/gain_handler.cpp
+++ /dev/null
@@ -1,177 +0,0 @@
-//
-// 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 <uhd/utils/gain_handler.hpp>
-#include <uhd/utils/assert.hpp>
-#include <uhd/types/ranges.hpp>
-#include <uhd/utils/props.hpp>
-#include <boost/assign/list_of.hpp>
-#include <boost/foreach.hpp>
-#include <boost/format.hpp>
-#include <cmath>
-#include <vector>
-
-using namespace uhd;
-
-/***********************************************************************
- * gain handler implementation interface
- **********************************************************************/
-class gain_handler_impl : public gain_handler{
-public:
- gain_handler_impl(
- const wax::obj &link,
- const props_t &props,
- is_equal_t is_equal
- );
- ~gain_handler_impl(void);
- bool intercept_get(const wax::obj &key, wax::obj &val);
- bool intercept_set(const wax::obj &key, const wax::obj &val);
-
-private:
- wax::obj _link;
- props_t _props;
- is_equal_t _is_equal;
-
- prop_names_t get_gain_names(void);
- float get_overall_gain_val(void);
- gain_range_t get_overall_gain_range(void);
- template <class T> T get_named_prop(const wax::obj &prop, const std::string &name){
- return _link[named_prop_t(prop, name)].as<T>();
- }
-};
-
-/***********************************************************************
- * the make function
- **********************************************************************/
-gain_handler::sptr gain_handler::make(
- const wax::obj &link,
- const props_t &props,
- is_equal_t is_equal
-){
- return sptr(new gain_handler_impl(link, props, is_equal));
-}
-
-/***********************************************************************
- * gain handler implementation methods
- **********************************************************************/
-gain_handler::props_t::props_t(void){
- /* NOP */
-}
-
-gain_handler_impl::gain_handler_impl(
- const wax::obj &link,
- const props_t &props,
- is_equal_t is_equal
-){
- _link = link;
- _props = props;
- _is_equal = is_equal;
-}
-
-gain_handler_impl::~gain_handler_impl(void){
- /* NOP */
-}
-
-prop_names_t gain_handler_impl::get_gain_names(void){
- return _link[_props.names].as<prop_names_t>();
-}
-
-float gain_handler_impl::get_overall_gain_val(void){
- float gain_val = 0;
- BOOST_FOREACH(std::string name, get_gain_names()){
- gain_val += get_named_prop<float>(_props.value, name);
- }
- return gain_val;
-}
-
-gain_range_t gain_handler_impl::get_overall_gain_range(void){
- float gain_min = 0, gain_max = 0, gain_step = 0;
- BOOST_FOREACH(std::string name, get_gain_names()){
- gain_range_t floatmp = get_named_prop<gain_range_t>(_props.range, name);
- gain_min += floatmp.min;
- gain_max += floatmp.max;
- gain_step = std::max(gain_step, floatmp.step);
- }
- return gain_range_t(gain_min, gain_max, gain_step);
-}
-
-/***********************************************************************
- * gain handler implementation get method
- **********************************************************************/
-bool gain_handler_impl::intercept_get(const wax::obj &key_, wax::obj &val){
- wax::obj key; std::string name;
- boost::tie(key, name) = extract_named_prop(key_);
-
- //not a wildcard... dont handle (but check name)
- if (name != ""){
- assert_has(get_gain_names(), name, "gain name");
- return false;
- }
-
- if (_is_equal(key, _props.value)){
- val = get_overall_gain_val();
- return true;
- }
-
- if (_is_equal(key, _props.range)){
- val = get_overall_gain_range();
- return true;
- }
-
- return false; //not handled
-}
-
-/***********************************************************************
- * gain handler implementation set method
- **********************************************************************/
-bool gain_handler_impl::intercept_set(const wax::obj &key_, const wax::obj &val){
- wax::obj key; std::string name;
- boost::tie(key, name) = extract_named_prop(key_);
-
- //not a gain value key... dont handle
- if (not _is_equal(key, _props.value)) return false;
-
- float gain_val = val.as<float>();
-
- //not a wildcard... dont handle (but check name and range)
- if (name != ""){
- assert_has(get_gain_names(), name, "gain name");
- gain_range_t gain = get_named_prop<gain_range_t>(_props.range, name);
- if (gain_val > gain.max or gain_val < gain.min) throw std::range_error(str(
- boost::format("A value of %f for gain %s is out of range of (%f, %f)")
- % gain_val % name % gain.min % gain.max
- ));
- return false;
- }
-
- //set the overall gain
- BOOST_FOREACH(std::string name, get_gain_names()){
- //get the min, max, step for this gain name
- gain_range_t gain = get_named_prop<gain_range_t>(_props.range, name);
-
- //clip g to be within the allowed range
- float g = std::min(std::max(gain_val, gain.min), gain.max);
- //set g to be a multiple of the step size
- g -= std::fmod(g, gain.step);
- //set g to be the new gain
- _link[named_prop_t(_props.value, name)] = g;
- //subtract g out of the total gain left to apply
- gain_val -= g;
- }
-
- return true;
-}