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1da177e4 LT |
1 | /* |
2 | * hvconsole.h | |
3 | * Copyright (C) 2004 Ryan S Arnold, IBM Corporation | |
4 | * | |
5 | * LPAR console support. | |
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 of the License, or | |
10 | * (at your option) 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 | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #ifndef _PPC64_HVCONSOLE_H | |
23 | #define _PPC64_HVCONSOLE_H | |
88ced031 | 24 | #ifdef __KERNEL__ |
1da177e4 LT |
25 | |
26 | /* | |
45d607ed RA |
27 | * PSeries firmware will only send/recv up to 16 bytes of character data per |
28 | * hcall. | |
1da177e4 | 29 | */ |
45d607ed RA |
30 | #define MAX_VIO_PUT_CHARS 16 |
31 | #define SIZE_VIO_GET_CHARS 16 | |
1da177e4 | 32 | |
45d607ed RA |
33 | /* |
34 | * Vio firmware always attempts to fetch MAX_VIO_GET_CHARS chars. The 'count' | |
35 | * parm is included to conform to put_chars() function pointer template | |
36 | */ | |
1da177e4 LT |
37 | extern int hvc_get_chars(uint32_t vtermno, char *buf, int count); |
38 | extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count); | |
39 | ||
88ced031 | 40 | #endif /* __KERNEL__ */ |
1da177e4 | 41 | #endif /* _PPC64_HVCONSOLE_H */ |