1 /* Common hardware header file.
2 Copyright (C) 1998 Free Software Foundation, Inc.
3 Contributed by Andrew Cagney and Cygnus Support.
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 2, or (at your option)
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 along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 /* establish a type system */
26 #include "sim-basics.h"
28 /* construct a hw device */
29 #include "hw-device.h"
30 #include "hw-properties.h"
31 #include "hw-events.h"
33 #include "hw-instances.h"
34 #include "hw-handles.h"
37 /* Description of a hardware device */
39 typedef void (hw_finish_method
)
42 struct hw_descriptor
{
44 hw_finish_method
*to_finish
;
47 /* Helper functions to make the implementation of a device easier */
49 /* Go through the devices reg properties and look for those specifying
50 an address to attach various registers to */
52 void do_hw_attach_regs (struct hw
*me
);
54 /* Perform a polling read on FD returning either the number of bytes
55 or a hw_io status code that indicates the reason for the read
59 HW_IO_EOF
= -1, HW_IO_NOT_READY
= -2, /* See: IEEE 1275 */
62 typedef int (do_hw_poll_read_method
)
63 (SIM_DESC sd
, int, char *, int);
67 do_hw_poll_read_method
*read
,
70 unsigned size_of_buf
);
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