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 #elif defined(CONFIG_UNICORE32) 30 #include "i8042-unicore32io.h" 31 #else 32 #include "i8042-io.h" 33 #endif 34 35 /* 36 * This is in 50us units, the time we wait for the i8042 to react. This 37 * has to be long enough for the i8042 itself to timeout on sending a byte 38 * to a non-existent mouse. 39 */ 40 41 #define I8042_CTL_TIMEOUT 10000 42 43 /* 44 * Status register bits. 45 */ 46 47 #define I8042_STR_PARITY 0x80 48 #define I8042_STR_TIMEOUT 0x40 49 #define I8042_STR_AUXDATA 0x20 50 #define I8042_STR_KEYLOCK 0x10 51 #define I8042_STR_CMDDAT 0x08 52 #define I8042_STR_MUXERR 0x04 53 #define I8042_STR_IBF 0x02 54 #define I8042_STR_OBF 0x01 55 56 /* 57 * Control register bits. 58 */ 59 60 #define I8042_CTR_KBDINT 0x01 61 #define I8042_CTR_AUXINT 0x02 62 #define I8042_CTR_IGNKEYLOCK 0x08 63 #define I8042_CTR_KBDDIS 0x10 64 #define I8042_CTR_AUXDIS 0x20 65 #define I8042_CTR_XLATE 0x40 66 67 /* 68 * Return codes. 69 */ 70 71 #define I8042_RET_CTL_TEST 0x55 72 73 /* 74 * Expected maximum internal i8042 buffer size. This is used for flushing 75 * the i8042 buffers. 76 */ 77 78 #define I8042_BUFFER_SIZE 16 79 80 /* 81 * Number of AUX ports on controllers supporting active multiplexing 82 * specification 83 */ 84 85 #define I8042_NUM_MUX_PORTS 4 86 87 /* 88 * Debug. 89 */ 90 91 #ifdef DEBUG 92 static unsigned long i8042_start_time; 93 #define dbg_init() do { i8042_start_time = jiffies; } while (0) 94 #define dbg(format, arg...) \ 95 do { \ 96 if (i8042_debug) \ 97 printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format, \ 98 (int) (jiffies - i8042_start_time), ##arg); \ 99 } while (0) 100 #else 101 #define dbg_init() do { } while (0) 102 #define dbg(format, arg...) \ 103 do { \ 104 if (0) \ 105 printk(KERN_DEBUG pr_fmt(format), ##arg); \ 106 } while (0) 107 #endif 108 109 #endif /* _I8042_H */ 110