/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _I8042_H
#define _I8042_H


/*
 *  Copyright (c) 1999-2002 Vojtech Pavlik
 */

/*
 * Arch-dependent inline functions and defines.
 */

#if defined(CONFIG_MACH_JAZZ)
#include "i8042-jazzio.h"
#elif defined(CONFIG_SGI_HAS_I8042)
#include "i8042-ip22io.h"
#elif defined(CONFIG_SNI_RM)
#include "i8042-snirm.h"
#elif defined(CONFIG_SPARC)
#include "i8042-sparcio.h"
#elif defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
#include "i8042-acpipnpio.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

/*
 * 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 KBUILD_MODNAME ": [%d] " format,      \
                               (int) (jiffies - i8042_start_time), ##arg);      \
        } while (0)

#define filter_dbg(filter, data, format, args...)               \
        do {                                                    \
                if (!i8042_debug)                               \
                        break;                                  \
                                                                \
                if (!filter || i8042_unmask_kbd_data)           \
                        dbg("%02x " format, data, ##args);      \
                else                                            \
                        dbg("** " format, ##args);              \
        } while (0)
#else
#define dbg_init() do { } while (0)
#define dbg(format, arg...)                                                     \
        do {                                                                    \
                if (0)                                                          \
                        printk(KERN_DEBUG pr_fmt(format), ##arg);               \
        } while (0)

#define filter_dbg(filter, data, format, args...) do { } while (0)
#endif

#endif /* _I8042_H */