1 /******************************************************************************
2 * console.h
3 *
4 * Console I/O interface for Xen guest OSes.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Copyright (c) 2005, Keir Fraser
25 */
26
27 #ifndef __XEN_PUBLIC_IO_CONSOLE_H__
28 #define __XEN_PUBLIC_IO_CONSOLE_H__
29
30 typedef uint32_t XENCONS_RING_IDX;
31
32 #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))
33
34 struct xencons_interface {
35 char in[1024];
36 char out[2048];
37 XENCONS_RING_IDX in_cons, in_prod;
38 XENCONS_RING_IDX out_cons, out_prod;
39 };
40
41 #ifdef XEN_WANT_FLEX_CONSOLE_RING
42 #include "ring.h"
43 DEFINE_XEN_FLEX_RING(xencons);
44 #endif
45
46 #endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */
47
48 /*
49 * Local variables:
50 * mode: C
51 * c-file-style: "BSD"
52 * c-basic-offset: 4
53 * tab-width: 4
54 * indent-tabs-mode: nil
55 * End:
56 */
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