| /* SPDX-License-Identifier: GPL-2.0+ */ | |
| /* | |
| * (C) Copyright 2002 ELTEC Elektronik AG | |
| * Frank Gottschling <fgottschling@eltec.de> | |
| */ | |
| /* i8042.h - Intel 8042 keyboard driver header */ | |
| #ifndef _I8042_H_ | |
| #define _I8042_H_ | |
| /* defines */ | |
| #define I8042_DATA_REG 0x60 /* keyboard i/o buffer */ | |
| #define I8042_STS_REG 0x64 /* keyboard status read */ | |
| #define I8042_CMD_REG 0x64 /* keyboard ctrl write */ | |
| /* Status register bit defines */ | |
| #define STATUS_OBF (1 << 0) | |
| #define STATUS_IBF (1 << 1) | |
| /* Configuration byte bit defines */ | |
| #define CFG_KIRQ_EN (1 << 0) | |
| #define CFG_MIRQ_EN (1 << 1) | |
| #define CFG_SET_BIST (1 << 2) | |
| #define CFG_KCLK_DIS (1 << 4) | |
| #define CFG_MCLK_DIS (1 << 5) | |
| #define CFG_AT_TRANS (1 << 6) | |
| /* i8042 commands */ | |
| #define CMD_RD_CONFIG 0x20 /* read configuration byte */ | |
| #define CMD_WR_CONFIG 0x60 /* write configuration byte */ | |
| #define CMD_SELF_TEST 0xaa /* controller self-test */ | |
| #define CMD_KBD_DIS 0xad /* keyboard disable */ | |
| #define CMD_KBD_EN 0xae /* keyboard enable */ | |
| #define CMD_SET_KBD_LED 0xed /* set keyboard led */ | |
| #define CMD_DRAIN_OUTPUT 0xf4 /* drain output buffer */ | |
| #define CMD_RESET_KBD 0xff /* reset keyboard */ | |
| /* i8042 command result */ | |
| #define KBC_TEST_OK 0x55 | |
| #define KBD_ACK 0xfa | |
| #define KBD_POR 0xaa | |
| /* keyboard scan codes */ | |
| #define KBD_US 0 /* default US layout */ | |
| #define KBD_GER 1 /* german layout */ | |
| #define KBD_TIMEOUT 1000 /* 1 sec */ | |
| #define KBD_RESET_TRIES 3 | |
| #define AS 0 /* normal character index */ | |
| #define SH 1 /* shift index */ | |
| #define CN 2 /* control index */ | |
| #define NM 3 /* numeric lock index */ | |
| #define AK 4 /* right alt key */ | |
| #define CP 5 /* capslock index */ | |
| #define ST 6 /* stop output index */ | |
| #define EX 7 /* extended code index */ | |
| #define ES 8 /* escape and extended code index */ | |
| #define NORMAL 0x0000 /* normal key */ | |
| #define STP 0x0001 /* scroll lock stop output*/ | |
| #define NUM 0x0002 /* numeric lock */ | |
| #define CAPS 0x0004 /* capslock */ | |
| #define SHIFT 0x0008 /* shift */ | |
| #define CTRL 0x0010 /* control*/ | |
| #define EXT 0x0020 /* extended scan code 0xe0 */ | |
| #define ESC 0x0040 /* escape key press */ | |
| #define E1 0x0080 /* extended scan code 0xe1 */ | |
| #define BRK 0x0100 /* make break flag for keyboard */ | |
| #define ALT 0x0200 /* right alt */ | |
| #endif /* _I8042_H_ */ |