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| 3923 | svoboda | 1 | /* |
| 2 | * Copyright (c) 2006 Josef Cejka |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 3924 | svoboda | 29 | /** @addtogroup kbd_port |
| 3923 | svoboda | 30 | * @ingroup kbd |
| 31 | * @{ |
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| 32 | */ |
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| 33 | |||
| 34 | /** @file |
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| 3924 | svoboda | 35 | * @brief i8042 port driver. |
| 3923 | svoboda | 36 | */ |
| 37 | |||
| 38 | #ifndef KBD_PORT_i8042_H_ |
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| 39 | #define KBD_PORT_i8042_H_ |
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| 40 | |||
| 41 | #include <ddi.h> |
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| 42 | #include <libarch/ddi.h> |
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| 43 | |||
| 44 | #define i8042_DATA 0x60 |
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| 45 | #define i8042_STATUS 0X64 |
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| 46 | |||
| 47 | |||
| 48 | typedef unsigned char u8; |
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| 49 | typedef short u16; |
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| 50 | |||
| 51 | static inline void i8042_data_write(u8 data) |
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| 52 | { |
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| 53 | outb(i8042_DATA, data); |
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| 54 | } |
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| 55 | |||
| 56 | static inline u8 i8042_data_read(void) |
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| 57 | { |
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| 58 | return inb(i8042_DATA); |
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| 59 | } |
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| 60 | |||
| 61 | static inline u8 i8042_status_read(void) |
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| 62 | { |
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| 63 | return inb(i8042_STATUS); |
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| 64 | } |
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| 65 | |||
| 66 | static inline void i8042_command_write(u8 command) |
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| 67 | { |
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| 68 | outb(i8042_STATUS, command); |
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| 69 | } |
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| 70 | |||
| 71 | #endif |
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| 72 | |||
| 73 | /** |
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| 74 | * @} |
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| 75 | */ |