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  1. /*
  2.  * Copyright (c) 2007 Michal Kebrt
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup arm32
  30.  * @{
  31.  */
  32. /** @file
  33.  *  @brief Debug print functions.
  34.  */
  35.  
  36. #include <printf/printf_core.h>
  37. #include <arch/debug/print.h>
  38. #include <arch/machine.h>
  39.  
  40. /** Prints a character to the console.
  41.  *
  42.  * @param ch Character to be printed.
  43.  */
  44. static void putc(char ch)
  45. {
  46.     machine_debug_putc(ch);
  47. }
  48.  
  49. /** Prints a string to the console.
  50.  *
  51.  * @param str    String to be printed.
  52.  * @param count  Number of characters to be printed.
  53.  * @param unused Unused parameter.
  54.  *
  55.  * @return Number of printed characters.
  56.  */
  57. static int debug_write(const char *str, size_t count, void *unused)
  58. {
  59.     unsigned int i;
  60.     for (i = 0; i < count; ++i)
  61.         putc(str[i]);
  62.    
  63.     return i;
  64. }
  65.  
  66. /** Prints a formated string.
  67.  *
  68.  * @param fmt "Printf-like" format.
  69.  */
  70. void debug_printf(const char *fmt, ...)
  71. {
  72.     va_list args;
  73.     va_start (args, fmt);
  74.  
  75.     struct printf_spec ps = {
  76.         (int (*)(void *, size_t, void *)) debug_write,
  77.         NULL
  78.     };
  79.     printf_core(fmt, &ps, args);
  80.  
  81.     va_end(args);
  82. }
  83.  
  84. /** Prints a string.
  85.  *
  86.  * @param str String to print.
  87.  */
  88. void debug_puts(const char *str)
  89. {
  90.     while (*str) {
  91.         putc(*str);
  92.         str++;
  93.     }
  94. }
  95.  
  96. /** @}
  97.  */
  98.