1 /* 2 * Copyright 2004-2006 Haiku, Inc. 3 * Distributed under the terms of the MIT License. 4 * 5 * PS/2 hid device driver 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 // debug defines 27 #ifdef DEBUG 28 # define TRACE(x) dprintf x 29 #else 30 # define TRACE(x) ; 31 #endif 32 33 // global variables 34 extern isa_module_info *gIsa; 35 36 extern device_hooks gKeyboardDeviceHooks; 37 extern device_hooks gMouseDeviceHooks; 38 39 extern bool gActiveMultiplexingEnabled; 40 extern sem_id gControllerSem; 41 42 // prototypes from common.c 43 44 status_t ps2_init(void); 45 void ps2_uninit(void); 46 47 uint8 ps2_read_ctrl(void); 48 uint8 ps2_read_data(void); 49 void ps2_write_ctrl(uint8 ctrl); 50 void ps2_write_data(uint8 data); 51 status_t ps2_wait_read(void); 52 status_t ps2_wait_write(void); 53 54 void ps2_flush(void); 55 56 extern status_t ps2_command(uint8 cmd, const uint8 *out, int out_count, uint8 *in, int in_count); 57 58 // prototypes from keyboard.c & mouse.c 59 extern status_t probe_keyboard(void); 60 61 #endif /* __PS2_COMMON_H */ 62