/*
* 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 */