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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>
42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/*
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* hvconsole.h
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* Copyright (C) 2004 Ryan S Arnold, IBM Corporation
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*
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* LPAR console support.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _PPC64_HVCONSOLE_H
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#define _PPC64_HVCONSOLE_H
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#ifdef __KERNEL__
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/*
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* PSeries firmware will only send/recv up to 16 bytes of character data per
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* hcall.
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*/
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#define MAX_VIO_PUT_CHARS 16
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#define SIZE_VIO_GET_CHARS 16
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/*
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* Vio firmware always attempts to fetch MAX_VIO_GET_CHARS chars. The 'count'
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* parm is included to conform to put_chars() function pointer template
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*/
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extern int hvc_get_chars(uint32_t vtermno, char *buf, int count);
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extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count);
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#endif /* __KERNEL__ */
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#endif /* _PPC64_HVCONSOLE_H */
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