3 * Copyright (C) 2004 Ryan S Arnold, IBM Corporation
5 * LPAR console support.
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.
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
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
22 #ifndef _PPC64_HVCONSOLE_H
23 #define _PPC64_HVCONSOLE_H
26 * This is the max number of console adapters that can/will be found as
27 * console devices on first stage console init. Any number beyond this range
28 * can't be used as a console device but is still a valid tty device.
30 #define MAX_NR_HVC_CONSOLES 16
32 /* implemented by a low level driver */
34 int (*get_chars)(uint32_t vtermno, char *buf, int count);
35 int (*put_chars)(uint32_t vtermno, const char *buf, int count);
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);
42 /* Register a vterm and a slot index for use as a console (console_init) */
43 extern int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops);
44 /* register a vterm for hvc tty operation (module_init or hotplug add) */
45 extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int irq,
47 /* remove a vterm from hvc tty operation (modele_exit or hotplug remove) */
48 extern int __devexit hvc_remove(struct hvc_struct *hp);
49 #endif /* _PPC64_HVCONSOLE_H */