src/add-ons/kernel/bus_managers/ps2/ps2_common.h

   1 /*
   2  * Copyright 2004-2010 Haiku, Inc.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * PS/2 bus manager
   6  *
   7  * Authors (in chronological order):
   8  *              Elad Lahav (elad@eldarshany.com)
   9  *              Stefano Ceccherini (burton666@libero.it)
  10  *              Axel Dörfler, axeld@pinc-software.de
  11  *      Marcus Overhagen <marcus@overhagen.de>
  12  */
  13 #ifndef __PS2_COMMON_H
  14 #define __PS2_COMMON_H
  15
  16
  17 #include <ISA.h>
  18 #include <Drivers.h>
  19 #include <KernelExport.h>
  20 #include <OS.h>
  21
  22 #include "ps2_defs.h"
  23 #include "ps2_dev.h"
  24
  25
  26 #if 1
  27 #       define INFO(x...) dprintf(x)
  28 #else
  29 #       define INFO(x...)
  30 #endif
  31 #define ERROR(x...) dprintf(x)
  32
  33 //#define TRACE_PS2
  34 #ifdef TRACE_PS2
  35 #       define TRACE(x...) dprintf(x)
  36 #else
  37 #       define TRACE(x...)
  38 #endif
  39
  40
  41 // global variables
  42 extern isa_module_info *gIsa;
  43
  44 extern device_hooks gKeyboardDeviceHooks;
  45 extern device_hooks gPointingDeviceHooks;
  46
  47 extern bool gActiveMultiplexingEnabled;
  48 extern sem_id gControllerSem;
  49
  50
  51 #ifdef __cplusplus
  52 extern "C" {
  53 #endif
  54
  55 // prototypes from common.c
  56 status_t                ps2_init(void);
  57 void                    ps2_uninit(void);
  58
  59 uint8                   ps2_read_ctrl(void);
  60 uint8                   ps2_read_data(void);
  61 void                    ps2_write_ctrl(uint8 ctrl);
  62 void                    ps2_write_data(uint8 data);
  63 status_t                ps2_wait_read(void);
  64 status_t                ps2_wait_write(void);
  65
  66 void                    ps2_flush(void);
  67
  68 extern status_t ps2_command(uint8 cmd, const uint8 *out, int out_count,
  69         uint8 *in, int in_count);
  70
  71 // prototypes from keyboard.c & mouse.c
  72 extern status_t probe_keyboard(void);
  73
  74 #ifdef __cplusplus
  75 }
  76 #endif
  77
  78
  79 #endif /* __PS2_COMMON_H */