/*
   * 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 */