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33 lines
583 B
C
33 lines
583 B
C
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/*
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* Copyright (c) 2014 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _post_h
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#define _post_h
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/* port to use for post codes */
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#define POST_PORT 0x80
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/* post codes which represent various stages of init */
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#define POST_START 0x1e
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#define POST_CAR_START 0x1f
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#define POST_START_STACK 0x29
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#define POST_START_DONE 0x2a
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/* Output a post code using al - value must be 0 to 0xff */
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#ifdef __ASSEMBLY__
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#define post_code(value) \
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movb $value, %al; \
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outb %al, $POST_PORT
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#else
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static inline void post_code(int code)
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{
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outb(code, POST_PORT);
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}
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#endif
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#endif
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