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  1. /*
  2.  * Copyright (c) 2005 Jakub Jermar
  3.  * Copyright (c) 2008 Jiri Svoboda
  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. /** @defgroup msimfb MSIM text console
  31.  * @brief   HelenOS MSIM text console.
  32.  * @ingroup fbs
  33.  * @{
  34.  */
  35. /** @file
  36.  */
  37.  
  38. #include <async.h>
  39. #include <libc.h>
  40. #include <sysinfo.h>
  41. #include <as.h>
  42. #include <ddi.h>
  43.  
  44. #include "serial_console.h"
  45. #include "ski.h"
  46.  
  47. #define SKI_PUTCHAR     31
  48.  
  49. #define WIDTH 80
  50. #define HEIGHT 24
  51.  
  52. /** Display character on ski debug console
  53.  *
  54.  * Use SSC (Simulator System Call) to
  55.  * display character on debug console.
  56.  *
  57.  * @param ch Character to be printed.
  58.  */
  59. static void ski_putc(const char ch)
  60. {
  61.     asm volatile (
  62.         "mov r15 = %0\n"
  63.         "mov r32 = %1\n"    /* r32 is in0 */
  64.         "break 0x80000\n"   /* modifies r8 */
  65.         :
  66.         : "i" (SKI_PUTCHAR), "r" (ch)
  67.         : "r15", "in0", "r8"
  68.     );
  69.    
  70.     if (ch == '\n')
  71.         ski_putc('\r');
  72. }
  73.  
  74. int ski_init(void)
  75. {
  76.     serial_console_init(ski_putc, WIDTH, HEIGHT);
  77.    
  78.     async_set_client_connection(serial_client_connection);
  79.     return 0;
  80. }
  81.  
  82. /**
  83.  * @}
  84.  */
  85.