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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* debug_ll.h
*
* written by Marc Singer
* 12 Feb 2005
*
* Copyright (C) 2005 Marc Singer
*/
#ifndef __INCLUDE_DEBUG_LL_H__
#define __INCLUDE_DEBUG_LL_H__
#ifdef CONFIG_HAS_DEBUG_LL
/*
* mach/debug_ll.h should implement PUTC_LL. This can be a macro or a static
* inline function. Note that several SoCs expect the UART to be initialized
* by a debugger or a first stage bootloader. You won't see anything without
* this initialization. Depending on the PUTC_LL implementation the board might
* also hang in PUTC_LL without proper initialization.
*/
#include <mach/debug_ll.h>
#endif
#if defined (CONFIG_DEBUG_LL)
static inline void putc_ll(char value)
{
PUTC_LL(value);
}
static inline void puthex_ll(unsigned long value)
{
int i; unsigned char ch;
for (i = sizeof(unsigned long) * 2; i--; ) {
ch = ((value >> (i * 4)) & 0xf);
ch += (ch >= 10) ? 'a' - 10 : '0';
putc_ll(ch);
}
}
/*
* Be careful with puts_ll, it only works if the binary is running at the
* link address which often is not the case during early startup. If in doubt
* don't use it.
*/
static inline void puts_ll(const char * str)
{
while (*str) {
if (*str == '\n')
putc_ll('\r');
putc_ll(*str);
str++;
}
}
#else
static inline void putc_ll(char value)
{
}
static inline void puthex_ll(unsigned long value)
{
}
/*
* Be careful with puts_ll, it only works if the binary is running at the
* link address which often is not the case during early startup. If in doubt
* don't use it.
*/
static inline void puts_ll(const char * str)
{
}
#endif
#endif /* __INCLUDE_DEBUG_LL_H__ */
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