ElectricalDriverMultiplier.cc revision 10448:bc1a3b7ab5ef 
1/* Copyright (c) 2012 Massachusetts Institute of Technology
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 * THE SOFTWARE.
20 */
21
22
23#include "model/timing_graph/ElectricalDriverMultiplier.h"
24#include "model/timing_graph/ElectricalLoad.h"
25
26namespace DSENT
27{
28    //-------------------------------------------------------------------------
29    // Electrical Net
30    //-------------------------------------------------------------------------
31
32    ElectricalDriverMultiplier::ElectricalDriverMultiplier(const String& instance_name_, ElectricalModel* model_)
33        : ElectricalTimingNode(instance_name_, model_)
34    {
35
36    }
37
38    ElectricalDriverMultiplier::~ElectricalDriverMultiplier()
39    {
40
41    }
42
43    double ElectricalDriverMultiplier::calculateDriveRes( double input_drive_res_) const
44    {
45        return input_drive_res_;
46    }
47
48    double ElectricalDriverMultiplier::calculateDelay() const
49    {
50        // This is just a model helper element, it does not contribute delay
51        return 0;
52    }
53
54    double ElectricalDriverMultiplier::calculateTransition() const
55    {
56        return getMaxUpstreamRes() * getTotalDownstreamCap();
57    }
58
59    double ElectricalDriverMultiplier::getTotalDownstreamCap() const
60    {
61        // Finds the max of the load caps (as opposed to summing)
62        double max_cap = 0;
63        vector<ElectricalTimingNode*>* downstream_nodes = ElectricalTimingNode::getDownstreamNodes();
64        for (unsigned int i = 0; i < downstream_nodes->size(); ++i)
65        {
66            max_cap = std::max(max_cap, downstream_nodes->at(i)->getTotalDownstreamCap());
67        }
68
69        return max_cap;
70    }
71
72} // namespace DSENT
73
74
75