6 * Copyright (c) 1999-2002 Vojtech Pavlik
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.
14 * Arch-dependent inline functions and defines.
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"
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.
37 #define I8042_CTL_TIMEOUT 10000
40 * When the device isn't opened and it's interrupts aren't used, we poll it at
41 * regular intervals to see if any characters arrived. If yes, we can start
42 * probing for any mouse / keyboard connected. This is the period of the
46 #define I8042_POLL_PERIOD HZ/20
49 * Status register bits.
52 #define I8042_STR_PARITY 0x80
53 #define I8042_STR_TIMEOUT 0x40
54 #define I8042_STR_AUXDATA 0x20
55 #define I8042_STR_KEYLOCK 0x10
56 #define I8042_STR_CMDDAT 0x08
57 #define I8042_STR_MUXERR 0x04
58 #define I8042_STR_IBF 0x02
59 #define I8042_STR_OBF 0x01
62 * Control register bits.
65 #define I8042_CTR_KBDINT 0x01
66 #define I8042_CTR_AUXINT 0x02
67 #define I8042_CTR_IGNKEYLOCK 0x08
68 #define I8042_CTR_KBDDIS 0x10
69 #define I8042_CTR_AUXDIS 0x20
70 #define I8042_CTR_XLATE 0x40
76 #define I8042_CMD_CTL_RCTR 0x0120
77 #define I8042_CMD_CTL_WCTR 0x1060
78 #define I8042_CMD_CTL_TEST 0x01aa
80 #define I8042_CMD_KBD_DISABLE 0x00ad
81 #define I8042_CMD_KBD_ENABLE 0x00ae
82 #define I8042_CMD_KBD_TEST 0x01ab
83 #define I8042_CMD_KBD_LOOP 0x11d2
85 #define I8042_CMD_AUX_DISABLE 0x00a7
86 #define I8042_CMD_AUX_ENABLE 0x00a8
87 #define I8042_CMD_AUX_TEST 0x01a9
88 #define I8042_CMD_AUX_SEND 0x10d4
89 #define I8042_CMD_AUX_LOOP 0x11d3
91 #define I8042_CMD_MUX_PFX 0x0090
92 #define I8042_CMD_MUX_SEND 0x1090
98 #define I8042_RET_CTL_TEST 0x55
101 * Expected maximum internal i8042 buffer size. This is used for flushing
105 #define I8042_BUFFER_SIZE 16
108 * Number of AUX ports on controllers supporting active multiplexing
112 #define I8042_NUM_MUX_PORTS 4
119 static unsigned long i8042_start_time;
120 #define dbg_init() do { i8042_start_time = jiffies; } while (0)
121 #define dbg(format, arg...) \
124 printk(KERN_DEBUG __FILE__ ": " format " [%d]\n" , \
125 ## arg, (int) (jiffies - i8042_start_time)); \
128 #define dbg_init() do { } while (0)
129 #define dbg(format, arg...) do {} while (0)
132 #endif /* _I8042_H */