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_HAS_I8042) 20 #include "i8042-ip22io.h" 21 #elif defined(CONFIG_SNI_RM) 22 #include "i8042-snirm.h" 23 #elif defined(CONFIG_PPC) 24 #include "i8042-ppcio.h" 25 #elif defined(CONFIG_SPARC) 26 #include "i8042-sparcio.h" 27 #elif defined(CONFIG_X86) || defined(CONFIG_IA64) 28 #include "i8042-x86ia64io.h" 29 #else 30 #include "i8042-io.h" 31 #endif 32 33 /* 34 * This is in 50us units, the time we wait for the i8042 to react. This 35 * has to be long enough for the i8042 itself to timeout on sending a byte 36 * to a non-existent mouse. 37 */ 38 39 #define I8042_CTL_TIMEOUT 10000 40 41 /* 42 * Status register bits. 43 */ 44 45 #define I8042_STR_PARITY 0x80 46 #define I8042_STR_TIMEOUT 0x40 47 #define I8042_STR_AUXDATA 0x20 48 #define I8042_STR_KEYLOCK 0x10 49 #define I8042_STR_CMDDAT 0x08 50 #define I8042_STR_MUXERR 0x04 51 #define I8042_STR_IBF 0x02 52 #define I8042_STR_OBF 0x01 53 54 /* 55 * Control register bits. 56 */ 57 58 #define I8042_CTR_KBDINT 0x01 59 #define I8042_CTR_AUXINT 0x02 60 #define I8042_CTR_IGNKEYLOCK 0x08 61 #define I8042_CTR_KBDDIS 0x10 62 #define I8042_CTR_AUXDIS 0x20 63 #define I8042_CTR_XLATE 0x40 64 65 /* 66 * Return codes. 67 */ 68 69 #define I8042_RET_CTL_TEST 0x55 70 71 /* 72 * Expected maximum internal i8042 buffer size. This is used for flushing 73 * the i8042 buffers. 74 */ 75 76 #define I8042_BUFFER_SIZE 16 77 78 /* 79 * Number of AUX ports on controllers supporting active multiplexing 80 * specification 81 */ 82 83 #define I8042_NUM_MUX_PORTS 4 84 85 /* 86 * Debug. 87 */ 88 89 #ifdef DEBUG 90 static unsigned long i8042_start_time; 91 #define dbg_init() do { i8042_start_time = jiffies; } while (0) 92 #define dbg(format, arg...) \ 93 do { \ 94 if (i8042_debug) \ 95 printk(KERN_DEBUG __FILE__ ": " format " [%d]\n" , \ 96 ## arg, (int) (jiffies - i8042_start_time)); \ 97 } while (0) 98 #else 99 #define dbg_init() do { } while (0) 100 #define dbg(format, arg...) do {} while (0) 101 #endif 102 103 #endif /* _I8042_H */ 104