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28 lines
732 B
28 lines
732 B
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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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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#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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