input/serio/i8042.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 #ifndef _I8042_H
0003 #define _I8042_H
0004
0005
0006 /*
0007  *  Copyright (c) 1999-2002 Vojtech Pavlik
0008  */
0009
0010 /*
0011  * Arch-dependent inline functions and defines.
0012  */
0013
0014 #if defined(CONFIG_MACH_JAZZ)
0015 #include "i8042-jazzio.h"
0016 #elif defined(CONFIG_SGI_HAS_I8042)
0017 #include "i8042-ip22io.h"
0018 #elif defined(CONFIG_SNI_RM)
0019 #include "i8042-snirm.h"
0020 #elif defined(CONFIG_SPARC)
0021 #include "i8042-sparcio.h"
0022 #elif defined(CONFIG_X86) || defined(CONFIG_IA64)
0023 #include "i8042-x86ia64io.h"
0024 #else
0025 #include "i8042-io.h"
0026 #endif
0027
0028 /*
0029  * This is in 50us units, the time we wait for the i8042 to react. This
0030  * has to be long enough for the i8042 itself to timeout on sending a byte
0031  * to a non-existent mouse.
0032  */
0033
0034 #define I8042_CTL_TIMEOUT   10000
0035
0036 /*
0037  * Return codes.
0038  */
0039
0040 #define I8042_RET_CTL_TEST  0x55
0041
0042 /*
0043  * Expected maximum internal i8042 buffer size. This is used for flushing
0044  * the i8042 buffers.
0045  */
0046
0047 #define I8042_BUFFER_SIZE   16
0048
0049 /*
0050  * Number of AUX ports on controllers supporting active multiplexing
0051  * specification
0052  */
0053
0054 #define I8042_NUM_MUX_PORTS 4
0055
0056 /*
0057  * Debug.
0058  */
0059
0060 #ifdef DEBUG
0061 static unsigned long i8042_start_time;
0062 #define dbg_init() do { i8042_start_time = jiffies; } while (0)
0063 #define dbg(format, arg...)                         \
0064     do {                                    \
0065         if (i8042_debug)                        \
0066             printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format,  \
0067                    (int) (jiffies - i8042_start_time), ##arg);  \
0068     } while (0)
0069
0070 #define filter_dbg(filter, data, format, args...)       \
0071     do {                            \
0072         if (!i8042_debug)               \
0073             break;                  \
0074                                 \
0075         if (!filter || i8042_unmask_kbd_data)       \
0076             dbg("%02x " format, data, ##args);  \
0077         else                        \
0078             dbg("** " format, ##args);      \
0079     } while (0)
0080 #else
0081 #define dbg_init() do { } while (0)
0082 #define dbg(format, arg...)                         \
0083     do {                                    \
0084         if (0)                              \
0085             printk(KERN_DEBUG pr_fmt(format), ##arg);       \
0086     } while (0)
0087
0088 #define filter_dbg(filter, data, format, args...) do { } while (0)
0089 #endif
0090
0091 #endif /* _I8042_H */