1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 #ifndef _I8042_H 3 #define _I8042_H 4 5 6 /* 7 * Copyright (c) 1999-2002 Vojtech Pavlik 8 */ 9 10 /* 11 * Arch-dependent inline functions and defines. 12 */ 13 14 #if defined(CONFIG_MACH_JAZZ) 15 #include "i8042-jazzio.h" 16 #elif defined(CONFIG_SGI_HAS_I8042) 17 #include "i8042-ip22io.h" 18 #elif defined(CONFIG_SNI_RM) 19 #include "i8042-snirm.h" 20 #elif defined(CONFIG_SPARC) 21 #include "i8042-sparcio.h" 22 #elif defined(CONFIG_X86) || defined(CONFIG_LOONGARCH) 23 #include "i8042-acpipnpio.h" 24 #else 25 #include "i8042-io.h" 26 #endif 27 28 /* 29 * This is in 50us units, the time we wait for the i8042 to react. This 30 * has to be long enough for the i8042 itself to timeout on sending a byte 31 * to a non-existent mouse. 32 */ 33 34 #define I8042_CTL_TIMEOUT 10000 35 36 /* 37 * Return codes. 38 */ 39 40 #define I8042_RET_CTL_TEST 0x55 41 42 /* 43 * Expected maximum internal i8042 buffer size. This is used for flushing 44 * the i8042 buffers. 45 */ 46 47 #define I8042_BUFFER_SIZE 16 48 49 /* 50 * Number of AUX ports on controllers supporting active multiplexing 51 * specification 52 */ 53 54 #define I8042_NUM_MUX_PORTS 4 55 56 /* 57 * Debug. 58 */ 59 60 #ifdef DEBUG 61 static unsigned long i8042_start_time; 62 #define dbg_init() do { i8042_start_time = jiffies; } while (0) 63 #define dbg(format, arg...) \ 64 do { \ 65 if (i8042_debug) \ 66 printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format, \ 67 (int) (jiffies - i8042_start_time), ##arg); \ 68 } while (0) 69 70 #define filter_dbg(filter, data, format, args...) \ 71 do { \ 72 if (!i8042_debug) \ 73 break; \ 74 \ 75 if (!filter || i8042_unmask_kbd_data) \ 76 dbg("%02x " format, data, ##args); \ 77 else \ 78 dbg("** " format, ##args); \ 79 } while (0) 80 #else 81 #define dbg_init() do { } while (0) 82 #define dbg(format, arg...) \ 83 do { \ 84 if (0) \ 85 printk(KERN_DEBUG pr_fmt(format), ##arg); \ 86 } while (0) 87 88 #define filter_dbg(filter, data, format, args...) do { } while (0) 89 #endif 90 91 #endif /* _I8042_H */ 92