mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
165be50f5a
We should not have exported functions in a driver. The i8042_disable() function is used to disable the keyboard. Provide a remove() method instead, which is the standard way of disabling a device. We could potentially add a method to flush input but that does not seem necessary. Signed-off-by: Simon Glass <sjg@chromium.org>
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/* 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 CONFIG_KIRQ_EN (1 << 0)
|
|
#define CONFIG_MIRQ_EN (1 << 1)
|
|
#define CONFIG_SET_BIST (1 << 2)
|
|
#define CONFIG_KCLK_DIS (1 << 4)
|
|
#define CONFIG_MCLK_DIS (1 << 5)
|
|
#define CONFIG_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_ */
|