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