uspace/kbd/arch/sparc64/src/kbd.c

   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 kbdsparc64 sparc64
  30  * @brief       HelenOS sparc64 arch dependent parts of uspace keyboard handler.
  31  * @ingroup  kbd
  32  * @{
  33  */
  34 /** @file
  35  */
  36
  37 #include <arch/kbd.h>
  38 #include <ipc/ipc.h>
  39 #include <sysinfo.h>
  40 #include <kbd.h>
  41 #include <keys.h>
  42 #include <stdio.h>
  43 #include <types.h>
  44 #include <genarch/kbd.h>
  45
  46 #define KBD_KEY_RELEASE         0x80
  47 #define KBD_ALL_KEYS_UP         0x7f
  48
  49 /** Top-half pseudocode for z8530. */
  50 irq_cmd_t z8530_cmds[] = {
  51         {
  52                 CMD_MEM_READ_1,
  53                 0,                      /**< Address. Will be patched in run-time. */
  54                 0,                      /**< Value. Not used. */
  55                 1                       /**< Arg 1 will contain the result. */
  56         }
  57 };
  58
  59 irq_code_t z8530_kbd = {
  60         1,
  61         z8530_cmds
  62 };
  63
  64 /** Top-half pseudocode for ns16550. */
  65 irq_cmd_t ns16550_cmds[] = {
  66         {
  67                 CMD_MEM_READ_1,
  68                 0,                      /**< Address. Will be patched in run-time. */
  69                 0,                      /**< Value. Not used. */
  70                 1                       /**< Arg 1 will contain the result. */
  71         }
  72 };
  73
  74 irq_code_t ns16550_kbd = {
  75         1,
  76         ns16550_cmds
  77 };
  78
  79 #define KBD_Z8530       1
  80 #define KBD_NS16550     2
  81
  82 int kbd_arch_init(void)
  83 {
  84         int type = sysinfo_value("kbd.type");
  85         switch (type) {
  86         case KBD_Z8530:
  87                 z8530_cmds[0].addr = (void *) sysinfo_value("kbd.address.virtual") + 6;
  88                 ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"), 0, &z8530_kbd);
  89                 break;
  90         case KBD_NS16550:
  91                 ns16550_cmds[0].addr = (void *) sysinfo_value("kbd.address.virtual");
  92                 ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"), 0, &ns16550_kbd);
  93                 break;
  94         default:
  95                 break;
  96         }
  97         return 0;
  98 }
  99
 100 /** Process keyboard events */
 101 int kbd_arch_process(keybuffer_t *keybuffer, ipc_call_t *call)
 102 {
 103         int scan_code = IPC_GET_ARG1(*call);
 104
 105         if (scan_code == KBD_ALL_KEYS_UP)
 106                 return 1;
 107
 108         if (scan_code & KBD_KEY_RELEASE)
 109                 key_released(keybuffer, scan_code ^ KBD_KEY_RELEASE);
 110         else
 111                 key_pressed(keybuffer, scan_code);
 112
 113         return 1;
 114 }
 115
 116 /** @}
 117  */