90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/*
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* debug_ll.h
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*
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* written by Marc Singer
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* 12 Feb 2005
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*
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* Copyright (C) 2005 Marc Singer
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef __INCLUDE_DEBUG_LL_H__
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#define __INCLUDE_DEBUG_LL_H__
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#ifdef CONFIG_HAS_DEBUG_LL
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/*
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* mach/debug_ll.h should implement PUTC_LL. This can be a macro or a static
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* inline function. Note that several SoCs expect the UART to be initialized
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* by a debugger or a first stage bootloader. You won't see anything without
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* this initialization. Depending on the PUTC_LL implementation the board might
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* also hang in PUTC_LL without proper initialization.
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*/
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#include <mach/debug_ll.h>
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#endif
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#if defined (CONFIG_DEBUG_LL)
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static inline void putc_ll(unsigned char value)
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{
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PUTC_LL(value);
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}
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static inline void puthex_ll(unsigned long value)
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{
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int i; unsigned char ch;
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for (i = 8; i--; ) {
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ch = ((value >> (i * 4)) & 0xf);
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ch += (ch >= 10) ? 'a' - 10 : '0';
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putc_ll(ch);
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}
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}
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/*
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* Be careful with puts_ll, it only works if the binary is running at the
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* link address which often is not the case during early startup. If in doubt
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* don't use it.
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*/
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static inline void puts_ll(const char * str)
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{
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while (*str) {
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if (*str == '\n')
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putc_ll('\r');
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putc_ll(*str);
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str++;
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}
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}
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#else
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static inline void putc_ll(unsigned char value)
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{
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}
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static inline void puthex_ll(unsigned long value)
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{
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}
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/*
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* Be careful with puts_ll, it only works if the binary is running at the
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* link address which often is not the case during early startup. If in doubt
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* don't use it.
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*/
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static inline void puts_ll(const char * str)
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{
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}
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#endif
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#endif /* __INCLUDE_DEBUG_LL_H__ */
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