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 32 //#define TRACE_PS2 33 #ifdef TRACE_PS2 34 # define TRACE(x...) dprintf(x) 35 #else 36 # define TRACE(x...) 37 #endif 38 39 40 // global variables 41 extern isa_module_info *gIsa; 42 43 extern device_hooks gKeyboardDeviceHooks; 44 extern device_hooks gPointingDeviceHooks; 45 46 extern bool gActiveMultiplexingEnabled; 47 extern sem_id gControllerSem; 48 49 50 #ifdef __cplusplus 51 extern "C" { 52 #endif 53 54 // prototypes from common.c 55 status_t ps2_init(void); 56 void ps2_uninit(void); 57 58 uint8 ps2_read_ctrl(void); 59 uint8 ps2_read_data(void); 60 void ps2_write_ctrl(uint8 ctrl); 61 void ps2_write_data(uint8 data); 62 status_t ps2_wait_read(void); 63 status_t ps2_wait_write(void); 64 65 void ps2_flush(void); 66 67 extern status_t ps2_command(uint8 cmd, const uint8 *out, int out_count, 68 uint8 *in, int in_count); 69 70 // prototypes from keyboard.c & mouse.c 71 extern status_t probe_keyboard(void); 72 73 #ifdef __cplusplus 74 } 75 #endif 76 77 78 #endif /* __PS2_COMMON_H */ 79