USRP Hardware Driver and USRP Manual: rfnoc_types.hpp Source File

| USRP Hardware Driver and USRP Manual Version: 4.8.0.makepkg-0-g308126a4 UHD and USRP Manual |

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rfnoc_types.hpp
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1//
2// Copyright 2019 Ettus Research, a National Instruments Brand
3//
4// SPDX-License-Identifier: GPL-3.0-or-later
5//
6
7#pragma once
8
9#include <cstddef>
10#include <cstdint>
11
12namespace uhd { namespace rfnoc {
13
14//-----------------------------------------------------------------------------
15// Types (note: internal types are defined in rfnoc_common.hpp)
16//-----------------------------------------------------------------------------
17
19 enum chdr_w_t { CHDR_W_64 = 0, CHDR_W_128 = 1, CHDR_W_256 = 2, CHDR_W_512 = 3 };
20
22 constexpr size_t chdr_w_to_bits(chdr_w_t chdr_w)
23{
24 // clang-format off
25 // This switch statement is what this function is doing, but it requires all
26 // consumers of this file to use C++14, which we currently enforce. We
27 // therefore keep this switch statement for reference, and for future
28 // improvements of this code, but what we feed the compiler is the nested
29 // ternary statement below.
30 /*
31 switch (chdr_w) {
32 case CHDR_W_64:
33 return 64;
34 case CHDR_W_128:
35 return 128;
36 case CHDR_W_256:
37 return 256;
38 case CHDR_W_512:
39 return 512;
40 default:
41 return 0;
42 }
43 */
44 return
45 chdr_w == CHDR_W_64 ? 64 :
46 chdr_w == CHDR_W_128 ? 128 :
47 chdr_w == CHDR_W_256 ? 256 :
48 chdr_w == CHDR_W_512 ? 512 :
49 /* default */ 0 ;
50 // clang-format on
51}
52
54 constexpr chdr_w_t bits_to_chdr_w(size_t bits)
55{
56 // clang-format off
57 return
58 bits == 64 ? CHDR_W_64 :
59 bits == 128 ? CHDR_W_128 :
60 bits == 256 ? CHDR_W_256 :
61 bits == 512 ? CHDR_W_512 :
62 /* default */ CHDR_W_64 ;
63 // clang-format on
64}
65
67// Stream endpoints within a graph are unique. They are assigned dynamically
68// during runtime when needed. Stream endpoints exist both in the host as well
69// as in the devices. See also sep_addr_t. The value of any sep_id_t is
70// meaningless, it provides no information on where the SEP is physically
71// located. In comments and variables, it is often abbreviated as "EPID"
72// ("endpoint ID").
73 using sep_id_t = uint16_t;
74
75}} // namespace uhd::rfnoc
uhd::rfnoc
Definition actions.hpp:24
uhd::rfnoc::sep_id_t
uint16_t sep_id_t
Stream Endpoint ID Type.
Definition rfnoc_types.hpp:73
uhd::rfnoc::chdr_w_t
chdr_w_t
Type that indicates the CHDR Width in bits.
Definition rfnoc_types.hpp:19
uhd::rfnoc::CHDR_W_128
@ CHDR_W_128
Definition rfnoc_types.hpp:19
uhd::rfnoc::CHDR_W_256
@ CHDR_W_256
Definition rfnoc_types.hpp:19
uhd::rfnoc::CHDR_W_512
@ CHDR_W_512
Definition rfnoc_types.hpp:19
uhd::rfnoc::CHDR_W_64
@ CHDR_W_64
Definition rfnoc_types.hpp:19
uhd::rfnoc::bits_to_chdr_w
constexpr chdr_w_t bits_to_chdr_w(size_t bits)
Conversion from number of bits to chdr_w_t.
Definition rfnoc_types.hpp:54
uhd::rfnoc::chdr_w_to_bits
constexpr size_t chdr_w_to_bits(chdr_w_t chdr_w)
Conversion from chdr_w_t to a number of bits.
Definition rfnoc_types.hpp:22
uhd
Definition build_info.hpp:12