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1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Josef Cejka |
2 | * Copyright (c) 2006 Josef Cejka |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup kbd_port |
29 | /** @addtogroup kbd_port |
30 | * @ingroup kbd |
30 | * @ingroup kbd |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | 33 | ||
34 | /** @file |
34 | /** @file |
35 | * @brief i8042 port driver. |
35 | * @brief i8042 port driver. |
36 | */ |
36 | */ |
37 | 37 | ||
38 | #ifndef KBD_PORT_i8042_H_ |
38 | #ifndef KBD_PORT_i8042_H_ |
39 | #define KBD_PORT_i8042_H_ |
39 | #define KBD_PORT_i8042_H_ |
40 | 40 | ||
41 | #include <ddi.h> |
- | |
42 | #include <libarch/ddi.h> |
41 | #include <libarch/ddi.h> |
- | 42 | #include <libarch/types.h> |
|
43 | 43 | ||
44 | #define i8042_DATA 0x60 |
- | |
45 | #define i8042_STATUS 0X64 |
44 | struct i8042 { |
46 | - | ||
47 | - | ||
48 | typedef unsigned char u8; |
- | |
49 | typedef short u16; |
45 | ioport8_t data; |
50 | - | ||
51 | static inline void i8042_data_write(u8 data) |
- | |
52 | { |
- | |
53 | outb(i8042_DATA, data); |
46 | uint8_t pad[3]; |
54 | } |
- | |
55 | - | ||
56 | static inline u8 i8042_data_read(void) |
- | |
57 | { |
- | |
58 | return inb(i8042_DATA); |
47 | ioport8_t status; |
59 | } |
- | |
60 | - | ||
61 | static inline u8 i8042_status_read(void) |
48 | } __attribute__ ((packed)); |
62 | { |
- | |
63 | return inb(i8042_STATUS); |
49 | typedef struct i8042 i8042_t; |
64 | } |
- | |
65 | - | ||
66 | static inline void i8042_command_write(u8 command) |
- | |
67 | { |
- | |
68 | outb(i8042_STATUS, command); |
- | |
69 | } |
- | |
70 | 50 | ||
71 | #endif |
51 | #endif |
72 | 52 | ||
73 | /** |
53 | /** |
74 | * @} |
54 | * @} |
75 | */ |
55 | */ |
76 | 56 |