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e1443d2849
A big problem with the current i8042 debugging option is that it outputs data going to and from the keyboard by default. As a result, many dmesg logs uploaded by users will unintentionally contain sensitive information such as their password, as such it's probably a good idea not to output data coming from the keyboard unless specifically enabled by the user. Signed-off-by: Stephen Chandler Paul <cpaul@redhat.com> Reviewed-by: Andreas Mohr <andim2@users.sf.net> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
99 lines
2.1 KiB
C
99 lines
2.1 KiB
C
#ifndef _I8042_H
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#define _I8042_H
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/*
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* Copyright (c) 1999-2002 Vojtech Pavlik
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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/*
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* Arch-dependent inline functions and defines.
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*/
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#if defined(CONFIG_MACH_JAZZ)
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#include "i8042-jazzio.h"
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#elif defined(CONFIG_SGI_HAS_I8042)
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#include "i8042-ip22io.h"
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#elif defined(CONFIG_SNI_RM)
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#include "i8042-snirm.h"
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#elif defined(CONFIG_PPC)
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#include "i8042-ppcio.h"
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#elif defined(CONFIG_SPARC)
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#include "i8042-sparcio.h"
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#elif defined(CONFIG_X86) || defined(CONFIG_IA64)
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#include "i8042-x86ia64io.h"
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#elif defined(CONFIG_UNICORE32)
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#include "i8042-unicore32io.h"
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#else
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#include "i8042-io.h"
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#endif
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/*
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* This is in 50us units, the time we wait for the i8042 to react. This
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* has to be long enough for the i8042 itself to timeout on sending a byte
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* to a non-existent mouse.
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*/
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#define I8042_CTL_TIMEOUT 10000
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/*
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* Return codes.
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*/
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#define I8042_RET_CTL_TEST 0x55
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/*
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* Expected maximum internal i8042 buffer size. This is used for flushing
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* the i8042 buffers.
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*/
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#define I8042_BUFFER_SIZE 16
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/*
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* Number of AUX ports on controllers supporting active multiplexing
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* specification
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*/
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#define I8042_NUM_MUX_PORTS 4
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/*
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* Debug.
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*/
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#ifdef DEBUG
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static unsigned long i8042_start_time;
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#define dbg_init() do { i8042_start_time = jiffies; } while (0)
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#define dbg(format, arg...) \
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do { \
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if (i8042_debug) \
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printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format, \
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(int) (jiffies - i8042_start_time), ##arg); \
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} while (0)
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#define filter_dbg(filter, data, format, args...) \
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do { \
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if (!i8042_debug) \
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break; \
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\
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if (!filter || i8042_unmask_kbd_data) \
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dbg("%02x " format, data, ##args); \
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else \
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dbg("** " format, ##args); \
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} while (0)
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#else
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#define dbg_init() do { } while (0)
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#define dbg(format, arg...) \
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do { \
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if (0) \
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printk(KERN_DEBUG pr_fmt(format), ##arg); \
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} while (0)
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#define filter_dbg(filter, data, format, args...) do { } while (0)
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#endif
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#endif /* _I8042_H */
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