[PATCH 22/57][Arm][GAS] Add support for MVE instructions: vmlaldav, vmlalv, vmlsldav...
[binutils-gdb.git] / sim / common / hw-ports.h
blobfdeee85cb4005392ff8ae8b7c331bbd2ef6513c0
1 /* Hardware ports.
2 Copyright (C) 1998-2019 Free Software Foundation, Inc.
3 Contributed by Andrew Cagney and Cygnus Solutions.
5 This file is part of GDB, the GNU debugger.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #ifndef HW_PORTS_H
22 #define HW_PORTS_H
24 /* Initialize a port */
26 struct hw_port_descriptor
28 const char *name;
29 int number;
30 int nr_ports;
31 port_direction direction;
34 void set_hw_ports (struct hw *hw, const struct hw_port_descriptor ports[]);
36 typedef void (hw_port_event_method)
37 (struct hw *me,
38 int my_port,
39 struct hw *source,
40 int source_port,
41 int level);
43 void set_hw_port_event (struct hw *hw, hw_port_event_method *to_port_event);
46 /* Port source
48 A device drives its output ports using the call
52 void hw_port_event
53 (struct hw *me,
54 int my_port,
55 int value);
57 /* This port event will then be propagated to any attached
58 destination ports.
60 Any interpretation of PORT and VALUE is model dependent. As a
61 guideline the following are recommended: PCI interrupts A-D should
62 correspond to ports 0-3; level sensitive interrupts be requested
63 with a value of one and withdrawn with a value of 0; edge sensitive
64 interrupts always have a value of 1, the event its self is treated
65 as the interrupt.
68 Port destinations
70 Attached to each port of a device can be zero or more
71 destinations. These destinations consist of a device/port pair.
72 A destination is attached/detached to a device line using the
73 attach and detach calls. */
75 void hw_port_attach
76 (struct hw *me,
77 int my_port,
78 struct hw *dest,
79 int dest_port,
80 object_disposition disposition);
82 void hw_port_detach
83 (struct hw *me,
84 int my_port,
85 struct hw *dest,
86 int dest_port);
89 /* Iterate over the list of ports attached to a device */
91 typedef void (hw_port_traverse_function)
92 (struct hw *me,
93 int my_port,
94 struct hw *dest,
95 int dest_port,
96 void *data);
98 void hw_port_traverse
99 (struct hw *me,
100 hw_port_traverse_function *handler,
101 void *data);
104 /* DESTINATION is attached (detached) to LINE of the device ME
107 Port conversion
109 Users refer to port numbers symbolically. For instance a device
110 may refer to its `INT' signal which is internally represented by
111 port 3.
113 To convert to/from the symbolic and internal representation of a
114 port name/number. The following functions are available. */
116 int hw_port_decode
117 (struct hw *me,
118 const char *symbolic_name,
119 port_direction direction);
121 int hw_port_encode
122 (struct hw *me,
123 int port_number,
124 char *buf,
125 int sizeof_buf,
126 port_direction direction);
129 #endif