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c906108c SS |
1 | /* Common hardware header file. |
2 | Copyright (C) 1998 Free Software Foundation, Inc. | |
3 | Contributed by Andrew Cagney and Cygnus Support. | |
4 | ||
5 | This file is part of GDB, the GNU debugger. | |
6 | ||
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) | |
10 | any later version. | |
11 | ||
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. | |
16 | ||
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. */ | |
20 | ||
21 | ||
22 | #ifndef HW_MAIN | |
23 | #define HW_MAIN | |
24 | ||
25 | /* establish a type system */ | |
26 | #include "sim-basics.h" | |
27 | ||
28 | /* construct a hw device */ | |
29 | #include "hw-device.h" | |
30 | #include "hw-properties.h" | |
31 | #include "hw-events.h" | |
32 | #include "hw-alloc.h" | |
33 | #include "hw-instances.h" | |
34 | #include "hw-handles.h" | |
35 | #include "hw-ports.h" | |
36 | ||
37 | /* Description of a hardware device */ | |
38 | ||
39 | typedef void (hw_finish_method) | |
40 | (struct hw *me); | |
41 | ||
42 | struct hw_descriptor { | |
43 | const char *family; | |
44 | hw_finish_method *to_finish; | |
45 | }; | |
46 | ||
47 | /* Helper functions to make the implementation of a device easier */ | |
48 | ||
49 | /* Go through the devices reg properties and look for those specifying | |
50 | an address to attach various registers to */ | |
51 | ||
52 | void do_hw_attach_regs (struct hw *me); | |
53 | ||
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 | |
56 | failure */ | |
57 | ||
58 | enum { | |
59 | HW_IO_EOF = -1, HW_IO_NOT_READY = -2, /* See: IEEE 1275 */ | |
60 | }; | |
61 | ||
62 | typedef int (do_hw_poll_read_method) | |
63 | (SIM_DESC sd, int, char *, int); | |
64 | ||
65 | int do_hw_poll_read | |
66 | (struct hw *me, | |
67 | do_hw_poll_read_method *read, | |
68 | int sim_io_fd, | |
69 | void *buf, | |
70 | unsigned size_of_buf); | |
71 | ||
72 | ||
73 | #endif |