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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.  
  43. SPINLOCK_INITIALIZE(printf_lock);           /**< vprintf spinlock */
  44.  
  45. static int vprintf_write(const char *str, size_t count, void *unused)
  46. {
  47.     size_t i;
  48.     for (i = 0; i < count; i++)
  49.         putchar(str[i]);
  50.     return i;
  51. }
  52.  
  53. int puts(const char *s)
  54. {
  55.     size_t i;
  56.     for (i = 0; s[i] != 0; i++)
  57.         putchar(s[i]);
  58.     return i;
  59. }
  60.  
  61. int vprintf(const char *fmt, va_list ap)
  62. {
  63.     struct printf_spec ps = {(int(*)(void *, size_t, void *)) vprintf_write, NULL};
  64.    
  65.     ipl_t ipl = interrupts_disable();
  66.     spinlock_lock(&printf_lock);
  67.    
  68.     int ret = printf_core(fmt, &ps, ap);
  69.    
  70.     spinlock_unlock(&printf_lock);
  71.     interrupts_restore(ipl);
  72.    
  73.     return ret;
  74. }
  75.  
  76. /** @}
  77.  */
  78.