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1 | |
2 | /***************************************************************************** | |
3 | ||
4 | The following code is derived, directly or indirectly, from the SystemC | |
5 | source code Copyright (c) 1996-2004 by all Contributors. | |
6 | All Rights reserved. | |
7 | ||
8 | The contents of this file are subject to the restrictions and limitations | |
9 | set forth in the SystemC Open Source License Version 2.4 (the "License"); | |
10 | You may not use this file except in compliance with such restrictions and | |
11 | limitations. You may obtain instructions on how to receive a copy of the | |
12 | License at http://www.systemc.org/. Software distributed by Contributors | |
13 | under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF | |
14 | ANY KIND, either express or implied. See the License for the specific | |
15 | language governing rights and limitations under the License. | |
16 | ||
17 | *****************************************************************************/ | |
18 | ||
19 | // | |
20 | // Note to the LRM writer : These interfaces are channel specific interfaces | |
21 | // useful in the context of tlm_fifo. | |
22 | // | |
23 | ||
24 | #ifndef TLM_FIFO_IFS_HEADER | |
25 | #define TLM_FIFO_IFS_HEADER | |
26 | ||
27 | // | |
28 | // Fifo specific interfaces | |
29 | // | |
30 | ||
31 | #include "tlm_core/tlm_interfaces/tlm_core_ifs.h" | |
32 | ||
33 | // Fifo Debug Interface | |
34 | ||
35 | template< typename T > | |
36 | class tlm_fifo_debug_if : public virtual sc_interface | |
37 | { | |
38 | public: | |
39 | virtual int used() const = 0; | |
40 | virtual int size() const = 0; | |
41 | virtual void debug() const = 0; | |
42 | ||
43 | // | |
44 | // non blocking peek and poke - no notification | |
45 | // | |
46 | // n is index of data : | |
47 | // 0 <= n < size(), where 0 is most recently written, and size() - 1 | |
48 | // is oldest ie the one about to be read. | |
49 | // | |
50 | ||
51 | virtual bool nb_peek( T & , int n ) const = 0; | |
52 | virtual bool nb_poke( const T & , int n = 0 ) = 0; | |
53 | ||
54 | }; | |
55 | ||
56 | // fifo interfaces = extended + debug | |
57 | ||
58 | template < typename T > | |
59 | class tlm_fifo_put_if : | |
60 | public virtual tlm_put_if<T> , | |
61 | public virtual tlm_fifo_debug_if<T> {}; | |
62 | ||
63 | template < typename T > | |
64 | class tlm_fifo_get_if : | |
65 | public virtual tlm_get_peek_if<T> , | |
66 | public virtual tlm_fifo_debug_if<T> {}; | |
67 | ||
68 | class tlm_fifo_config_size_if : public virtual sc_interface | |
69 | { | |
70 | public: | |
71 | virtual void nb_expand( unsigned int n = 1 ) = 0; | |
72 | virtual void nb_unbound( unsigned int n = 16 ) = 0; | |
73 | ||
74 | virtual bool nb_reduce( unsigned int n = 1 ) = 0; | |
75 | virtual bool nb_bound( unsigned int n ) = 0; | |
76 | ||
77 | }; | |
78 | #endif | |
79 |