projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _I8042_H |
| 2 | #define _I8042_H | |
| 3 | ||
| 4 | #include <linux/config.h> | |
| 5 | ||
| 6 | /* | |
| 7 | * Copyright (c) 1999-2002 Vojtech Pavlik | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or modify it | |
| 10 | * under the terms of the GNU General Public License version 2 as published by | |
| 11 | * the Free Software Foundation. | |
| 12 | */ | |
| 13 | ||
| 14 | /* | |
| 15 | * Arch-dependent inline functions and defines. | |
| 16 | */ | |
| 17 | ||
| 18 | #if defined(CONFIG_MACH_JAZZ) | |
| 19 | #include "i8042-jazzio.h" | |
| 20 | #elif defined(CONFIG_SGI_IP22) | |
| 21 | #include "i8042-ip22io.h" | |
| 22 | #elif defined(CONFIG_PPC) | |
| 23 | #include "i8042-ppcio.h" | |
| 0b57ee9e | 24 | #elif defined(CONFIG_SPARC) |
| 1da177e4 LT |
25 | #include "i8042-sparcio.h" |
| 26 | #elif defined(CONFIG_X86) || defined(CONFIG_IA64) | |
| 27 | #include "i8042-x86ia64io.h" | |
| 28 | #else | |
| 29 | #include "i8042-io.h" | |
| 30 | #endif | |
| 31 | ||
| 32 | /* | |
| 33 | * This is in 50us units, the time we wait for the i8042 to react. This | |
| 34 | * has to be long enough for the i8042 itself to timeout on sending a byte | |
| 35 | * to a non-existent mouse. | |
| 36 | */ | |
| 37 | ||
| 38 | #define I8042_CTL_TIMEOUT 10000 | |
| 39 | ||
| 40 | /* | |
| 41 | * When the device isn't opened and it's interrupts aren't used, we poll it at | |
| 42 | * regular intervals to see if any characters arrived. If yes, we can start | |
| 43 | * probing for any mouse / keyboard connected. This is the period of the | |
| 44 | * polling. | |
| 45 | */ | |
| 46 | ||
| 47 | #define I8042_POLL_PERIOD HZ/20 | |
| 48 | ||
| 49 | /* | |
| 50 | * Status register bits. | |
| 51 | */ | |
| 52 | ||
| 53 | #define I8042_STR_PARITY 0x80 | |
| 54 | #define I8042_STR_TIMEOUT 0x40 | |
| 55 | #define I8042_STR_AUXDATA 0x20 | |
| 56 | #define I8042_STR_KEYLOCK 0x10 | |
| 57 | #define I8042_STR_CMDDAT 0x08 | |
| 58 | #define I8042_STR_MUXERR 0x04 | |
| 59 | #define I8042_STR_IBF 0x02 | |
| 60 | #define I8042_STR_OBF 0x01 | |
| 61 | ||
| 62 | /* | |
| 63 | * Control register bits. | |
| 64 | */ | |
| 65 | ||
| 66 | #define I8042_CTR_KBDINT 0x01 | |
| 67 | #define I8042_CTR_AUXINT 0x02 | |
| 68 | #define I8042_CTR_IGNKEYLOCK 0x08 | |
| 69 | #define I8042_CTR_KBDDIS 0x10 | |
| 70 | #define I8042_CTR_AUXDIS 0x20 | |
| 71 | #define I8042_CTR_XLATE 0x40 | |
| 72 | ||
| 73 | /* | |
| 74 | * Commands. | |
| 75 | */ | |
| 76 | ||
| 77 | #define I8042_CMD_CTL_RCTR 0x0120 | |
| 78 | #define I8042_CMD_CTL_WCTR 0x1060 | |
| 79 | #define I8042_CMD_CTL_TEST 0x01aa | |
| 80 | ||
| 81 | #define I8042_CMD_KBD_DISABLE 0x00ad | |
| 82 | #define I8042_CMD_KBD_ENABLE 0x00ae | |
| 83 | #define I8042_CMD_KBD_TEST 0x01ab | |
| 84 | #define I8042_CMD_KBD_LOOP 0x11d2 | |
| 85 | ||
| 86 | #define I8042_CMD_AUX_DISABLE 0x00a7 | |
| 87 | #define I8042_CMD_AUX_ENABLE 0x00a8 | |
| 88 | #define I8042_CMD_AUX_TEST 0x01a9 | |
| 89 | #define I8042_CMD_AUX_SEND 0x10d4 | |
| 90 | #define I8042_CMD_AUX_LOOP 0x11d3 | |
| 91 | ||
| 92 | #define I8042_CMD_MUX_PFX 0x0090 | |
| 93 | #define I8042_CMD_MUX_SEND 0x1090 | |
| 94 | ||
| 95 | /* | |
| 96 | * Return codes. | |
| 97 | */ | |
| 98 | ||
| 99 | #define I8042_RET_CTL_TEST 0x55 | |
| 100 | ||
| 101 | /* | |
| 102 | * Expected maximum internal i8042 buffer size. This is used for flushing | |
| 103 | * the i8042 buffers. | |
| 104 | */ | |
| 105 | ||
| 106 | #define I8042_BUFFER_SIZE 16 | |
| 107 | ||
| 108 | /* | |
| 109 | * Number of AUX ports on controllers supporting active multiplexing | |
| 110 | * specification | |
| 111 | */ | |
| 112 | ||
| 113 | #define I8042_NUM_MUX_PORTS 4 | |
| 114 | ||
| 115 | /* | |
| 116 | * Debug. | |
| 117 | */ | |
| 118 | ||
| 119 | #ifdef DEBUG | |
| 120 | static unsigned long i8042_start_time; | |
| 121 | #define dbg_init() do { i8042_start_time = jiffies; } while (0) | |
| 122 | #define dbg(format, arg...) \ | |
| 123 | do { \ | |
| 124 | if (i8042_debug) \ | |
| 125 | printk(KERN_DEBUG __FILE__ ": " format " [%d]\n" , \ | |
| 126 | ## arg, (int) (jiffies - i8042_start_time)); \ | |
| 127 | } while (0) | |
| 128 | #else | |
| 129 | #define dbg_init() do { } while (0) | |
| 130 | #define dbg(format, arg...) do {} while (0) | |
| 131 | #endif | |
| 132 | ||
| 133 | #endif /* _I8042_H */ |