18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 28c2ecf20Sopenharmony_ci#ifndef _I8042_H 38c2ecf20Sopenharmony_ci#define _I8042_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci/* 78c2ecf20Sopenharmony_ci * Copyright (c) 1999-2002 Vojtech Pavlik 88c2ecf20Sopenharmony_ci */ 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ci/* 118c2ecf20Sopenharmony_ci * Arch-dependent inline functions and defines. 128c2ecf20Sopenharmony_ci */ 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci#if defined(CONFIG_MACH_JAZZ) 158c2ecf20Sopenharmony_ci#include "i8042-jazzio.h" 168c2ecf20Sopenharmony_ci#elif defined(CONFIG_SGI_HAS_I8042) 178c2ecf20Sopenharmony_ci#include "i8042-ip22io.h" 188c2ecf20Sopenharmony_ci#elif defined(CONFIG_SNI_RM) 198c2ecf20Sopenharmony_ci#include "i8042-snirm.h" 208c2ecf20Sopenharmony_ci#elif defined(CONFIG_SPARC) 218c2ecf20Sopenharmony_ci#include "i8042-sparcio.h" 228c2ecf20Sopenharmony_ci#elif defined(CONFIG_MACH_LOONGSON64) 238c2ecf20Sopenharmony_ci#include "i8042-loongsonio.h" 248c2ecf20Sopenharmony_ci#elif defined(CONFIG_X86) || defined(CONFIG_IA64) 258c2ecf20Sopenharmony_ci#include "i8042-acpipnpio.h" 268c2ecf20Sopenharmony_ci#else 278c2ecf20Sopenharmony_ci#include "i8042-io.h" 288c2ecf20Sopenharmony_ci#endif 298c2ecf20Sopenharmony_ci 308c2ecf20Sopenharmony_ci/* 318c2ecf20Sopenharmony_ci * This is in 50us units, the time we wait for the i8042 to react. This 328c2ecf20Sopenharmony_ci * has to be long enough for the i8042 itself to timeout on sending a byte 338c2ecf20Sopenharmony_ci * to a non-existent mouse. 348c2ecf20Sopenharmony_ci */ 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci#define I8042_CTL_TIMEOUT 10000 378c2ecf20Sopenharmony_ci 388c2ecf20Sopenharmony_ci/* 398c2ecf20Sopenharmony_ci * Return codes. 408c2ecf20Sopenharmony_ci */ 418c2ecf20Sopenharmony_ci 428c2ecf20Sopenharmony_ci#define I8042_RET_CTL_TEST 0x55 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ci/* 458c2ecf20Sopenharmony_ci * Expected maximum internal i8042 buffer size. This is used for flushing 468c2ecf20Sopenharmony_ci * the i8042 buffers. 478c2ecf20Sopenharmony_ci */ 488c2ecf20Sopenharmony_ci 498c2ecf20Sopenharmony_ci#define I8042_BUFFER_SIZE 16 508c2ecf20Sopenharmony_ci 518c2ecf20Sopenharmony_ci/* 528c2ecf20Sopenharmony_ci * Number of AUX ports on controllers supporting active multiplexing 538c2ecf20Sopenharmony_ci * specification 548c2ecf20Sopenharmony_ci */ 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_ci#define I8042_NUM_MUX_PORTS 4 578c2ecf20Sopenharmony_ci 588c2ecf20Sopenharmony_ci/* 598c2ecf20Sopenharmony_ci * Debug. 608c2ecf20Sopenharmony_ci */ 618c2ecf20Sopenharmony_ci 628c2ecf20Sopenharmony_ci#ifdef DEBUG 638c2ecf20Sopenharmony_cistatic unsigned long i8042_start_time; 648c2ecf20Sopenharmony_ci#define dbg_init() do { i8042_start_time = jiffies; } while (0) 658c2ecf20Sopenharmony_ci#define dbg(format, arg...) \ 668c2ecf20Sopenharmony_ci do { \ 678c2ecf20Sopenharmony_ci if (i8042_debug) \ 688c2ecf20Sopenharmony_ci printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format, \ 698c2ecf20Sopenharmony_ci (int) (jiffies - i8042_start_time), ##arg); \ 708c2ecf20Sopenharmony_ci } while (0) 718c2ecf20Sopenharmony_ci 728c2ecf20Sopenharmony_ci#define filter_dbg(filter, data, format, args...) \ 738c2ecf20Sopenharmony_ci do { \ 748c2ecf20Sopenharmony_ci if (!i8042_debug) \ 758c2ecf20Sopenharmony_ci break; \ 768c2ecf20Sopenharmony_ci \ 778c2ecf20Sopenharmony_ci if (!filter || i8042_unmask_kbd_data) \ 788c2ecf20Sopenharmony_ci dbg("%02x " format, data, ##args); \ 798c2ecf20Sopenharmony_ci else \ 808c2ecf20Sopenharmony_ci dbg("** " format, ##args); \ 818c2ecf20Sopenharmony_ci } while (0) 828c2ecf20Sopenharmony_ci#else 838c2ecf20Sopenharmony_ci#define dbg_init() do { } while (0) 848c2ecf20Sopenharmony_ci#define dbg(format, arg...) \ 858c2ecf20Sopenharmony_ci do { \ 868c2ecf20Sopenharmony_ci if (0) \ 878c2ecf20Sopenharmony_ci printk(KERN_DEBUG pr_fmt(format), ##arg); \ 888c2ecf20Sopenharmony_ci } while (0) 898c2ecf20Sopenharmony_ci 908c2ecf20Sopenharmony_ci#define filter_dbg(filter, data, format, args...) do { } while (0) 918c2ecf20Sopenharmony_ci#endif 928c2ecf20Sopenharmony_ci 938c2ecf20Sopenharmony_ci#endif /* _I8042_H */ 94