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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.     size_t offset = 0;
  49.     count_t chars = 0;
  50.  
  51.     while (offset < size) {
  52.         putchar(chr_decode(str, &offset, size));
  53.         chars++;
  54.     }
  55.  
  56.     return chars;
  57. }
  58.  
  59. static int vprintf_write_utf32(const wchar_t *str, size_t size, void *data)
  60. {
  61.     index_t index = 0;
  62.  
  63.     while (index < (size / sizeof(wchar_t))) {
  64.         putchar(str[index]);
  65.         index++;
  66.     }
  67.  
  68.     return index;
  69. }
  70.  
  71. int puts(const char *str)
  72. {
  73.     size_t offset = 0;
  74.     count_t chars = 0;
  75.     wchar_t uc;
  76.  
  77.     while ((uc = chr_decode(str, &offset, UTF8_NO_LIMIT)) != 0) {
  78.         putchar(uc);
  79.         chars++;
  80.     }
  81.  
  82.     return chars;
  83. }
  84.  
  85. int vprintf(const char *fmt, va_list ap)
  86. {
  87.     printf_spec_t ps = {
  88.         vprintf_write_utf8,
  89.         vprintf_write_utf32,
  90.         NULL
  91.     };
  92.  
  93.     ipl_t ipl = interrupts_disable();
  94.     spinlock_lock(&printf_lock);
  95.  
  96.     int ret = printf_core(fmt, &ps, ap);
  97.  
  98.     spinlock_unlock(&printf_lock);
  99.     interrupts_restore(ipl);
  100.  
  101.     return ret;
  102. }
  103.  
  104. /** @}
  105.  */
  106.