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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.  
  41. SPINLOCK_INITIALIZE(printf_lock);           /**< vprintf spinlock */
  42.  
  43. static int vprintf_write(const char *str, size_t count, void *unused)
  44. {
  45.     size_t i;
  46.     for (i = 0; i < count; i++)
  47.         putchar(str[i]);
  48.     return i;
  49. }
  50.  
  51. int puts(const char *s)
  52. {
  53.     size_t i;
  54.     for (i = 0; s[i] != 0; i++)
  55.         putchar(s[i]);
  56.     return i;
  57. }
  58.  
  59. int vprintf(const char *fmt, va_list ap)
  60. {
  61.     struct printf_spec ps = {(int(*)(void *, size_t, void *)) vprintf_write, NULL};
  62.    
  63.     int irqpri = interrupts_disable();
  64.     spinlock_lock(&printf_lock);
  65.    
  66.     int ret = printf_core(fmt, &ps, ap);
  67.    
  68.     spinlock_unlock(&printf_lock);
  69.     interrupts_restore(irqpri);
  70.    
  71.     return ret;
  72. }
  73.  
  74. /** @}
  75.  */
  76.