arch/blackfin/include/asm/early_printk.h

   1 /*
   2  * File:         include/asm-blackfin/early_printk.h
   3  * Author:       Robin Getz <rgetz@blackfin.uclinux.org
   4  *
   5  * Created:      14Aug2007
   6  * Description:  function prototpyes for early printk
   7  *
   8  * Modified:
   9  *               Copyright 2004-2007 Analog Devices Inc.
  10  *
  11  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  */
  23
  24
  25 #ifndef __ASM_EARLY_PRINTK_H__
  26 #define __ASM_EARLY_PRINTK_H__
  27
  28 #ifdef CONFIG_EARLY_PRINTK
  29 /* For those that don't include it already */
  30 #include <linux/console.h>
  31
  32 extern int setup_early_printk(char *);
  33 extern void enable_shadow_console(void);
  34 extern int shadow_console_enabled(void);
  35 extern void mark_shadow_error(void);
  36 extern void early_shadow_reg(unsigned long reg, unsigned int n);
  37 extern void early_shadow_write(struct console *con, const char *s,
  38         unsigned int n) __attribute__((nonnull(2)));
  39 #define early_shadow_puts(str) early_shadow_write(NULL, str, strlen(str))
  40 #define early_shadow_stamp() \
  41         do { \
  42                 early_shadow_puts(__FILE__ " : " __stringify(__LINE__) " ["); \
  43                 early_shadow_puts(__func__); \
  44                 early_shadow_puts("]\n"); \
  45         } while (0)
  46 #else
  47 #define setup_early_printk(fmt) do { } while (0)
  48 #define enable_shadow_console(fmt)  do { } while (0)
  49 #define early_shadow_stamp() do { } while (0)
  50 #endif /* CONFIG_EARLY_PRINTK */
  51
  52 #endif /* __ASM_EARLY_PRINTK_H__ */