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  1. /*
  2.  * Copyright (c) 2007 Michal Kebrt
  3.  * Copyright (c) 2009 Vineeth Pillai
  4.  * All rights reserved.
  5.  *
  6.  * Redistribution and use in source and binary forms, with or without
  7.  * modification, are permitted provided that the following conditions
  8.  * are met:
  9.  *
  10.  * - Redistributions of source code must retain the above copyright
  11.  *   notice, this list of conditions and the following disclaimer.
  12.  * - Redistributions in binary form must reproduce the above copyright
  13.  *   notice, this list of conditions and the following disclaimer in the
  14.  *   documentation and/or other materials provided with the distribution.
  15.  * - The name of the author may not be used to endorse or promote products
  16.  *   derived from this software without specific prior written permission.
  17.  *
  18.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28.  */
  29.  
  30.  
  31. /** @addtogroup arm32boot
  32.  * @{
  33.  */
  34. /** @file
  35.  *  @brief bootloader output logic
  36.  */
  37.  
  38.  
  39. #include <printf.h>
  40.  
  41.  
  42. /** Address where characters to be printed are expected. */
  43. #ifdef MACHINE_testarm
  44.     #define PUTC_ADDRESS  0x10000000
  45. #endif
  46.  
  47. #ifdef MACHINE_integratorcp
  48.     #define PUTC_ADDRESS  0x16000000
  49. #endif
  50.  
  51.  
  52.  
  53. /** Prints a character to the console.
  54.  *
  55.  * @param ch Character to be printed.
  56.  */
  57. static void putc(char ch)
  58. {
  59.     if (ch == '\n')
  60.         *((volatile char *) PUTC_ADDRESS) = '\r';
  61.     *((volatile char *) PUTC_ADDRESS) = ch;
  62. }
  63.  
  64.  
  65. /** Prints a string to the console.
  66.  *
  67.  * @param str String to be printed.
  68.  * @param len Number of characters to be printed.
  69.  */
  70. void write(const char *str, const int len)
  71. {
  72.     int i;
  73.     for (i = 0; i < len; ++i) {
  74.         putc(str[i]);
  75.     }
  76. }
  77.  
  78. /** @}
  79.  */
  80.  
  81.