1 #ifndef _I8042_H 2 #define _I8042_H 3 4 5 /* 6 * Copyright (c) 1999-2002 Vojtech Pavlik 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License version 2 as published by 10 * the Free Software Foundation. 11 */ 12 13 /* 14 * Arch-dependent inline functions and defines. 15 */ 16 17 #if defined(CONFIG_MACH_JAZZ) 18 #include "i8042-jazzio.h" 19 #elif defined(CONFIG_SGI_IP22) 20 #include "i8042-ip22io.h" 21 #elif defined(CONFIG_PPC) 22 #include "i8042-ppcio.h" 23 #elif defined(CONFIG_SPARC) 24 #include "i8042-sparcio.h" 25 #elif defined(CONFIG_X86) || defined(CONFIG_IA64) 26 #include "i8042-x86ia64io.h" 27 #else 28 #include "i8042-io.h" 29 #endif 30 31 /* 32 * This is in 50us units, the time we wait for the i8042 to react. This 33 * has to be long enough for the i8042 itself to timeout on sending a byte 34 * to a non-existent mouse. 35 */ 36 37 #define I8042_CTL_TIMEOUT 10000 38 39 /* 40 * Status register bits. 41 */ 42 43 #define I8042_STR_PARITY 0x80 44 #define I8042_STR_TIMEOUT 0x40 45 #define I8042_STR_AUXDATA 0x20 46 #define I8042_STR_KEYLOCK 0x10 47 #define I8042_STR_CMDDAT 0x08 48 #define I8042_STR_MUXERR 0x04 49 #define I8042_STR_IBF 0x02 50 #define I8042_STR_OBF 0x01 51 52 /* 53 * Control register bits. 54 */ 55 56 #define I8042_CTR_KBDINT 0x01 57 #define I8042_CTR_AUXINT 0x02 58 #define I8042_CTR_IGNKEYLOCK 0x08 59 #define I8042_CTR_KBDDIS 0x10 60 #define I8042_CTR_AUXDIS 0x20 61 #define I8042_CTR_XLATE 0x40 62 63 /* 64 * Return codes. 65 */ 66 67 #define I8042_RET_CTL_TEST 0x55 68 69 /* 70 * Expected maximum internal i8042 buffer size. This is used for flushing 71 * the i8042 buffers. 72 */ 73 74 #define I8042_BUFFER_SIZE 16 75 76 /* 77 * Number of AUX ports on controllers supporting active multiplexing 78 * specification 79 */ 80 81 #define I8042_NUM_MUX_PORTS 4 82 83 /* 84 * Debug. 85 */ 86 87 #ifdef DEBUG 88 static unsigned long i8042_start_time; 89 #define dbg_init() do { i8042_start_time = jiffies; } while (0) 90 #define dbg(format, arg...) \ 91 do { \ 92 if (i8042_debug) \ 93 printk(KERN_DEBUG __FILE__ ": " format " [%d]\n" , \ 94 ## arg, (int) (jiffies - i8042_start_time)); \ 95 } while (0) 96 #else 97 #define dbg_init() do { } while (0) 98 #define dbg(format, arg...) do {} while (0) 99 #endif 100 101 #endif /* _I8042_H */ 102