projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | /* | |
| 27 | * This is the max number of console adapters that can/will be found as | |
| 28 | * console devices on first stage console init. Any number beyond this range | |
| 29 | * can't be used as a console device but is still a valid tty device. | |
| 30 | */ | |
| 31 | #define MAX_NR_HVC_CONSOLES 16 | |
| 32 | ||
| acad9559 | 33 | /* implemented by a low level driver */ |
| 030ffad2 MM |
34 | struct hv_ops { |
| 35 | int (*get_chars)(uint32_t vtermno, char *buf, int count); | |
| 36 | int (*put_chars)(uint32_t vtermno, const char *buf, int count); | |
| 37 | }; | |
| 1da177e4 LT |
38 | extern int hvc_get_chars(uint32_t vtermno, char *buf, int count); |
| 39 | extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count); | |
| 40 | ||
| acad9559 MM |
41 | struct hvc_struct; |
| 42 | ||
| 43 | /* Register a vterm and a slot index for use as a console (console_init) */ | |
| 030ffad2 | 44 | extern int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops); |
| acad9559 | 45 | /* register a vterm for hvc tty operation (module_init or hotplug add) */ |
| 030ffad2 MM |
46 | extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int irq, |
| 47 | struct hv_ops *ops); | |
| acad9559 MM |
48 | /* remove a vterm from hvc tty operation (modele_exit or hotplug remove) */ |
| 49 | extern int __devexit hvc_remove(struct hvc_struct *hp); | |
| 88ced031 | 50 | #endif /* __KERNEL__ */ |
| 1da177e4 | 51 | #endif /* _PPC64_HVCONSOLE_H */ |