scoutos / prex-0.9.0 / bsp / drv / dev / input / i8042.h @ 03e9c04a
History | View | Annotate | Download (2.82 KB)
| 1 | 03e9c04a | Brad Neuman | /*
|
|---|---|---|---|
| 2 | * Copyright (c) 2005, Kohsuke Ohtani
|
||
| 3 | * All rights reserved.
|
||
| 4 | *
|
||
| 5 | * Redistribution and use in source and binary forms, with or without
|
||
| 6 | * modification, are permitted provided that the following conditions
|
||
| 7 | * are met:
|
||
| 8 | * 1. Redistributions of source code must retain the above copyright
|
||
| 9 | * notice, this list of conditions and the following disclaimer.
|
||
| 10 | * 2. Redistributions in binary form must reproduce the above copyright
|
||
| 11 | * notice, this list of conditions and the following disclaimer in the
|
||
| 12 | * documentation and/or other materials provided with the distribution.
|
||
| 13 | * 3. Neither the name of the author nor the names of any co-contributors
|
||
| 14 | * may be used to endorse or promote products derived from this software
|
||
| 15 | * without specific prior written permission.
|
||
| 16 | *
|
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
| 27 | * SUCH DAMAGE.
|
||
| 28 | */
|
||
| 29 | |||
| 30 | #ifndef _KMC_H
|
||
| 31 | #define _KMC_H
|
||
| 32 | /*
|
||
| 33 | * i8042 Keyboard Mouse Controller definition
|
||
| 34 | */
|
||
| 35 | |||
| 36 | /* I/O ports */
|
||
| 37 | #define KMC_DATA 0x60 |
||
| 38 | #define KMC_PORTB 0x61 |
||
| 39 | #define KMC_CMD 0x64 |
||
| 40 | #define KMC_STS 0x64 |
||
| 41 | |||
| 42 | /* Status */
|
||
| 43 | #define STS_PERR 0x80 /* Parity error */ |
||
| 44 | #define STS_TMO 0x40 /* Timeout */ |
||
| 45 | #define STS_AUXOBF 0x20 /* Mouse OBF */ |
||
| 46 | #define STS_INH 0x10 /* 0: inhibit 1: no-inhibit */ |
||
| 47 | #define STS_SYS 0x04 /* 0: power up 1:Init comp */ |
||
| 48 | #define STS_IBF 0x02 /* Input (to kbd) buffer full */ |
||
| 49 | #define STS_OBF 0x01 /* Output (from kbd) buffer full */ |
||
| 50 | |||
| 51 | /* Command */
|
||
| 52 | #define CMD_READ_CMD 0x20 |
||
| 53 | #define CMD_WRITE_CMD 0x60 |
||
| 54 | #define CMD_AUX_DIS 0xa7 |
||
| 55 | #define CMD_AUX_EN 0xa8 |
||
| 56 | #define CMD_KBD_DIS 0xad |
||
| 57 | #define CMD_KBD_EN 0xae |
||
| 58 | #define CMD_READ_OPORT 0xd0 |
||
| 59 | #define CMD_WRITE_OPORT 0xd1 |
||
| 60 | #define CMD_WRITE_AUX 0xd4 |
||
| 61 | |||
| 62 | /* Auxillary device command */
|
||
| 63 | #define AUX_ENABLE 0xf4 |
||
| 64 | #define AUX_DISABLE 0xf5 |
||
| 65 | #define AUX_RESET 0xff |
||
| 66 | |||
| 67 | /*
|
||
| 68 | * wait_obf: Wait output buffer full
|
||
| 69 | * wait_obe: Wait input buffer empty
|
||
| 70 | * wait_ibf: Wait input buffer full
|
||
| 71 | * wait_ibe: Wait input buffer empty
|
||
| 72 | */
|
||
| 73 | #define kmc_wait_obf() while ((bus_read_8(KMC_STS) & STS_OBF) == 0) |
||
| 74 | #define kmc_wait_obe() while (bus_read_8(KMC_STS) & STS_OBF) |
||
| 75 | #define kmc_wait_ibf() while ((bus_read_8(KMC_STS) & STS_IBF) == 0) |
||
| 76 | #define kmc_wait_ibe() while (bus_read_8(KMC_STS) & STS_IBF) |
||
| 77 | |||
| 78 | #endif /* !_KMC_H */ |