#ifndef _I8042_H #define _I8042_H #include <linux/config.h> /* * Copyright (c) 1999-2002 Vojtech Pavlik * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ /* * Arch-dependent inline functions and defines. */ #if defined(CONFIG_MACH_JAZZ) #include "i8042-jazzio.h" #elif defined(CONFIG_SGI_IP22) #include "i8042-ip22io.h" #elif defined(CONFIG_PPC) #include "i8042-ppcio.h" #elif defined(CONFIG_SPARC) #include "i8042-sparcio.h" #elif defined(CONFIG_X86) || defined(CONFIG_IA64) #include "i8042-x86ia64io.h" #else #include "i8042-io.h" #endif /* * This is in 50us units, the time we wait for the i8042 to react. This * has to be long enough for the i8042 itself to timeout on sending a byte * to a non-existent mouse. */ #define I8042_CTL_TIMEOUT 10000 /* * When the device isn't opened and it's interrupts aren't used, we poll it at * regular intervals to see if any characters arrived. If yes, we can start * probing for any mouse / keyboard connected. This is the period of the * polling. */ #define I8042_POLL_PERIOD HZ/20 /* * Status register bits. */ #define I8042_STR_PARITY 0x80 #define I8042_STR_TIMEOUT 0x40 #define I8042_STR_AUXDATA 0x20 #define I8042_STR_KEYLOCK 0x10 #define I8042_STR_CMDDAT 0x08 #define I8042_STR_MUXERR 0x04 #define I8042_STR_IBF 0x02 #define I8042_STR_OBF 0x01 /* * Control register bits. */ #define I8042_CTR_KBDINT 0x01 #define I8042_CTR_AUXINT 0x02 #define I8042_CTR_IGNKEYLOCK 0x08 #define I8042_CTR_KBDDIS 0x10 #define I8042_CTR_AUXDIS 0x20 #define I8042_CTR_XLATE 0x40 /* * Commands. */ #define I8042_CMD_CTL_RCTR 0x0120 #define I8042_CMD_CTL_WCTR 0x1060 #define I8042_CMD_CTL_TEST 0x01aa #define I8042_CMD_KBD_DISABLE 0x00ad #define I8042_CMD_KBD_ENABLE 0x00ae #define I8042_CMD_KBD_TEST 0x01ab #define I8042_CMD_KBD_LOOP 0x11d2 #define I8042_CMD_AUX_DISABLE 0x00a7 #define I8042_CMD_AUX_ENABLE 0x00a8 #define I8042_CMD_AUX_TEST 0x01a9 #define I8042_CMD_AUX_SEND 0x10d4 #define I8042_CMD_AUX_LOOP 0x11d3 #define I8042_CMD_MUX_PFX 0x0090 #define I8042_CMD_MUX_SEND 0x1090 /* * Return codes. */ #define I8042_RET_CTL_TEST 0x55 /* * Expected maximum internal i8042 buffer size. This is used for flushing * the i8042 buffers. */ #define I8042_BUFFER_SIZE 16 /* * Number of AUX ports on controllers supporting active multiplexing * specification */ #define I8042_NUM_MUX_PORTS 4 /* * Debug. */ #ifdef DEBUG static unsigned long i8042_start_time; #define dbg_init() do { i8042_start_time = jiffies; } while (0) #define dbg(format, arg...) \ do { \ if (i8042_debug) \ printk(KERN_DEBUG __FILE__ ": " format " [%d]\n" , \ ## arg, (int) (jiffies - i8042_start_time)); \ } while (0) #else #define dbg_init() do { } while (0) #define dbg(format, arg...) do {} while (0) #endif #endif /* _I8042_H */