mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
45d607ed92
These are some updates from both Ryan and Arnd for the hvc_console driver: The main point is to enable the inclusion of a console driver for rtas, which is currrently needed for the cell platform. Also shuffle around some data-type declarations and moves some functions out of include/asm-ppc64/hvconsole.h and into a new drivers/char/hvc_console.h file. Signed-off-by: "Ryan S. Arnold" <rsa@us.ibm.com> Signed-off-by: Arnd Bergmann <abergman@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
/*
|
|
* hvconsole.h
|
|
* Copyright (C) 2004 Ryan S Arnold, IBM Corporation
|
|
*
|
|
* LPAR console support.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _PPC64_HVCONSOLE_H
|
|
#define _PPC64_HVCONSOLE_H
|
|
#ifdef __KERNEL__
|
|
|
|
/*
|
|
* PSeries firmware will only send/recv up to 16 bytes of character data per
|
|
* hcall.
|
|
*/
|
|
#define MAX_VIO_PUT_CHARS 16
|
|
#define SIZE_VIO_GET_CHARS 16
|
|
|
|
/*
|
|
* Vio firmware always attempts to fetch MAX_VIO_GET_CHARS chars. The 'count'
|
|
* parm is included to conform to put_chars() function pointer template
|
|
*/
|
|
extern int hvc_get_chars(uint32_t vtermno, char *buf, int count);
|
|
extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count);
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _PPC64_HVCONSOLE_H */
|