Subversion Repositories HelenOS

Rev

Rev 3925 | Rev 4344 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  * Copyright (c) 2006 Martin Decky
  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   Z8530 keyboard port driver.
  35.  */
  36.  
  37. #include <ipc/ipc.h>
  38. #include <async.h>
  39. #include <sysinfo.h>
  40. #include <kbd.h>
  41. #include <kbd_port.h>
  42. #include <sys/types.h>
  43.  
  44. /** Top-half pseudocode for z8530. */
  45. irq_cmd_t z8530_cmds[] = {
  46.     {
  47.         CMD_MEM_READ_1,
  48.         0,      /**< Address. Will be patched in run-time. */
  49.         0,      /**< Value. Not used. */
  50.         1       /**< Arg 1 will contain the result. */
  51.     }
  52. };
  53.  
  54.    
  55. irq_code_t z8530_kbd = {
  56.     1,
  57.     z8530_cmds
  58. };
  59.  
  60. static void z8530_irq_handler(ipc_callid_t iid, ipc_call_t *call);
  61.  
  62. int kbd_port_init(void)
  63. {
  64.     async_set_interrupt_received(z8530_irq_handler);
  65.     z8530_cmds[0].addr = (void *) sysinfo_value("kbd.address.virtual") + 6;
  66.     ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"),
  67.         0, &z8530_kbd);
  68.     return 0;
  69. }
  70.  
  71. static void z8530_irq_handler(ipc_callid_t iid, ipc_call_t *call)
  72. {
  73.     int scan_code = IPC_GET_ARG1(*call);
  74.     kbd_push_scancode(scan_code);
  75. }
  76.  
  77. /** @}
  78.  */
  79.