blob: f8e422a5176bf4307f6e97e2ae3144e91d98e2de (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
//
// Copyright 2014-2015 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhd/rfnoc/tick_node_ctrl.hpp>
using namespace uhd::rfnoc;
const double tick_node_ctrl::RATE_UNDEFINED = 0;
double tick_node_ctrl::get_tick_rate(
const std::set< node_ctrl_base::sptr > &_explored_nodes
) {
// First, see if we've implemented _get_tick_rate()
{
double my_tick_rate = _get_tick_rate();
if (my_tick_rate != RATE_UNDEFINED) {
return my_tick_rate;
}
}
// If not, we ask all our neighbours for the tick rate.
// This will fail if we get different values.
std::set< node_ctrl_base::sptr > explored_nodes(_explored_nodes);
explored_nodes.insert(shared_from_this());
// Here, we need all up- and downstream nodes
std::vector< sptr > neighbouring_tick_nodes = find_downstream_node<tick_node_ctrl>(true);
{
std::vector< sptr > upstream_neighbouring_tick_nodes = find_upstream_node<tick_node_ctrl>(true);
neighbouring_tick_nodes.insert(
neighbouring_tick_nodes.end(),
upstream_neighbouring_tick_nodes.begin(),
upstream_neighbouring_tick_nodes.end()
);
} // neighbouring_tick_nodes is now initialized
double ret_val = RATE_UNDEFINED;
for(const sptr &node: neighbouring_tick_nodes) {
if (_explored_nodes.count(node)) {
continue;
}
double tick_rate = node->get_tick_rate(explored_nodes);
if (tick_rate == RATE_UNDEFINED) {
continue;
}
if (ret_val == RATE_UNDEFINED) {
ret_val = tick_rate;
// TODO: Remember name of this node so we can make the throw message more descriptive.
continue;
}
if (tick_rate != ret_val) {
throw uhd::runtime_error(
str(
// TODO add node names
boost::format("Conflicting tick rates: One neighbouring block specifies %d MHz, another %d MHz.")
% tick_rate % ret_val
)
);
}
}
return ret_val;
}
|
