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  1. /*
  2.  * Copyright (c) 2006 Josef Cejka
  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 generic
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <print.h>
  36. #include <printf/printf_core.h>
  37. #include <putchar.h>
  38. #include <synch/spinlock.h>
  39. #include <arch/asm.h>
  40. #include <arch/types.h>
  41. #include <typedefs.h>
  42. #include <string.h>
  43.  
  44. SPINLOCK_INITIALIZE(printf_lock);  /**< vprintf spinlock */
  45.  
  46. static int vprintf_write_utf8(const char *str, size_t size, void *data)
  47. {
  48.     index_t index = 0;
  49.     index_t chars = 0;
  50.    
  51.     while (index < size) {
  52.         putchar(utf8_decode(str, &index, size - 1));
  53.         index++;
  54.         chars++;
  55.     }
  56.    
  57.     return chars;
  58. }
  59.  
  60. static int vprintf_write_utf32(const wchar_t *str, size_t size, void *data)
  61. {
  62.     index_t index = 0;
  63.    
  64.     while (index < (size / sizeof(wchar_t))) {
  65.         putchar(str[index]);
  66.         index++;
  67.     }
  68.    
  69.     return index;
  70. }
  71.  
  72. int puts(const char *str)
  73. {
  74.     index_t index = 0;
  75.     index_t chars = 0;
  76.     wchar_t uc;
  77.    
  78.     while ((uc = utf8_decode(str, &index, UTF8_NO_LIMIT)) != 0) {
  79.         putchar(uc);
  80.         index++;
  81.         chars++;
  82.     }
  83.    
  84.     return chars;
  85. }
  86.  
  87. int vprintf(const char *fmt, va_list ap)
  88. {
  89.     printf_spec_t ps = {
  90.         vprintf_write_utf8,
  91.         vprintf_write_utf32,
  92.         NULL
  93.     };
  94.    
  95.     ipl_t ipl = interrupts_disable();
  96.     spinlock_lock(&printf_lock);
  97.    
  98.     int ret = printf_core(fmt, &ps, ap);
  99.    
  100.     spinlock_unlock(&printf_lock);
  101.     interrupts_restore(ipl);
  102.    
  103.     return ret;
  104. }
  105.  
  106. /** @}
  107.  */
  108.