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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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 | #include <arch/i8042.h> |
29 | #include <arch/i8042.h> |
30 | #include <arch/i8259.h> |
30 | #include <arch/i8259.h> |
31 | #include <arch/interrupt.h> |
31 | #include <arch/interrupt.h> |
32 | #include <cpu.h> |
32 | #include <cpu.h> |
33 | #include <arch/asm.h> |
33 | #include <arch/asm.h> |
34 | #include <arch.h> |
34 | #include <arch.h> |
35 | #include <print.h> |
35 | #include <print.h> |
36 | 36 | ||
37 | /* |
37 | /* |
38 | * i8042 processor driver. |
38 | * i8042 processor driver. |
39 | * Its very essential function is enabling the A20. |
39 | * Its very essential function is enabling the A20. |
40 | */ |
40 | */ |
41 | 41 | ||
42 | void i8042_init(void) |
42 | void i8042_init(void) |
43 | { |
43 | { |
44 | /* A20: deadly if not enabled */ |
44 | /* A20: deadly if not enabled */ |
45 | outb(0x64,0xd1); |
45 | outb(0x64,0xd1); |
46 | outb(0x60,0xdf); |
46 | outb(0x60,0xdf); |
47 | 47 | ||
48 | trap_register(VECTOR_KBD, i8042_interrupt); |
48 | trap_register(VECTOR_KBD, i8042_interrupt); |
49 | } |
49 | } |
50 | 50 | ||
51 | void i8042_interrupt(__u8 n, __u32 stack[]) |
51 | void i8042_interrupt(__u8 n, __native stack[]) |
52 | { |
52 | { |
53 | __u8 x; |
53 | __u8 x; |
54 | 54 | ||
55 | trap_virtual_eoi(); |
55 | trap_virtual_eoi(); |
56 | x = inb(0x60); |
56 | x = inb(0x60); |
57 | printf("%d", CPU->id);; |
57 | printf("%d", CPU->id);; |
58 | } |
58 | } |
59 | 59 |