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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 kbd_port
  30.  * @ingroup  kbd
  31.  * @{
  32.  */
  33. /** @file
  34.  * @brief   Msim keyboard port driver.
  35.  */
  36.  
  37. #include <ipc/ipc.h>
  38. #include <async.h>
  39. #include <sysinfo.h>
  40. #include <kbd_port.h>
  41. #include <kbd.h>
  42. #include <ddi.h>
  43.  
  44. irq_cmd_t msim_cmds[] = {
  45.     {
  46.         .cmd = CMD_PIO_READ_8,
  47.         .addr = (void *) 0, /* will be patched in run-time */
  48.         .dstarg = 2
  49.     },
  50.     {
  51.         .cmd = CMD_ACCEPT
  52.     }
  53.    
  54. };
  55.  
  56. irq_code_t msim_kbd = {
  57.     sizeof(msim_cmds) / sizeof(irq_cmd_t),
  58.     msim_cmds
  59. };
  60.  
  61. static void msim_irq_handler(ipc_callid_t iid, ipc_call_t *call);
  62.  
  63. int kbd_port_init(void)
  64. {
  65.     async_set_interrupt_received(msim_irq_handler);
  66.     msim_cmds[0].addr = sysinfo_value("kbd.address.virtual");
  67.     ipc_register_irq(sysinfo_value("kbd.inr"), device_assign_devno(),
  68.         0, &msim_kbd);
  69.     return 0;
  70. }
  71.  
  72. void kbd_port_yield(void)
  73. {
  74. }
  75.  
  76. void kbd_port_reclaim(void)
  77. {
  78. }
  79.  
  80. static void msim_irq_handler(ipc_callid_t iid, ipc_call_t *call)
  81. {
  82.     int scan_code = IPC_GET_ARG2(*call);
  83.     kbd_push_scancode(scan_code);
  84. }
  85.  
  86. /** @}
  87. */
  88.