Rev 1606 | Rev 1625 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 1606 | Rev 1619 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Martin Decky |
2 | * Copyright (C) 2006 Martin Decky |
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/drivers/cuda.h> |
29 | #include <arch/drivers/cuda.h> |
30 | #include <arch/asm.h> |
30 | #include <arch/asm.h> |
31 | #include <console/chardev.h> |
31 | #include <console/chardev.h> |
32 | #include <console/console.h> |
32 | #include <console/console.h> |
33 | #include <arch/drivers/pic.h> |
33 | #include <arch/drivers/pic.h> |
34 | #include <interrupt.h> |
34 | #include <interrupt.h> |
- | 35 | #include <stdarg.h> |
|
- | 36 | ||
- | 37 | #define PACKET_ADB 0x00 |
|
- | 38 | #define PACKET_CUDA 0x01 |
|
- | 39 | #define PACKET_NULL 0xff |
|
35 | 40 | ||
36 | #define CUDA_PACKET 0x01 |
- | |
37 | #define CUDA_POWERDOWN 0x0a |
41 | #define CUDA_POWERDOWN 0x0a |
38 | 42 | ||
39 | #define RS 0x200 |
43 | #define RS 0x200 |
40 | #define B (0 * RS) |
44 | #define B (0 * RS) |
41 | #define A (1 * RS) |
45 | #define A (1 * RS) |
42 | #define SR (10 * RS) |
46 | #define SR (10 * RS) |
43 | #define ACR (11 * RS) |
47 | #define ACR (11 * RS) |
44 | 48 | ||
45 | #define SR_OUT 0x10 |
49 | #define SR_OUT 0x10 |
46 | #define TACK 0x10 |
50 | #define TACK 0x10 |
47 | #define TIP 0x20 |
51 | #define TIP 0x20 |
48 | 52 | ||
49 | 53 | ||
50 | static volatile __u8 *cuda = (__u8 *) 0xf2000000; |
54 | static volatile __u8 *cuda = NULL; |
- | 55 | ||
- | 56 | ||
- | 57 | static char lchars[0x80] = { |
|
- | 58 | 'a', 's', 'd', 'f', 'h', 'g', 'z', 'x', 'c', 'v', 0, 'b', 'q', 'w', 'e', 'r', |
|
- | 59 | 'y', 't', '1', '2', '3', '4', '6', '5', '=', '9', '7', '-', '8', '0', ']', 'o', |
|
- | 60 | 'u', '[', 'i', 'p', 13, 'l', 'j', '\'', 'k', ';', '\\', ',', '/', 'n', 'm', '.', |
|
- | 61 | 9, 32, '`', 8, 0, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
|
- | 62 | 0, '.', 0, '*', 0, '+', 0, 0, 0, 0, 0, '/', 13, 0, '-', 0, |
|
- | 63 | 0, 0, '0', '1', '2', '3', '4', '5', '6', '7', 0, '8', '9', 0, 0, 0, |
|
- | 64 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
|
- | 65 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
|
- | 66 | }; |
|
- | 67 | ||
- | 68 | ||
- | 69 | static void send_packet(const __u8 kind, index_t count, ...) |
|
- | 70 | { |
|
- | 71 | index_t i; |
|
- | 72 | va_list va; |
|
- | 73 | ||
- | 74 | switch (kind) { |
|
- | 75 | case PACKET_NULL: |
|
- | 76 | break; |
|
- | 77 | default: |
|
- | 78 | cuda[B] = cuda[B] | TIP; |
|
- | 79 | cuda[ACR] = cuda[ACR] | SR_OUT; |
|
- | 80 | cuda[SR] = kind; |
|
- | 81 | cuda[B] = cuda[B] & ~TIP; |
|
- | 82 | ||
- | 83 | va_start(va, count); |
|
- | 84 | ||
- | 85 | for (i = 0; i < count; i++) { |
|
- | 86 | cuda[ACR] = cuda[ACR] | SR_OUT; |
|
- | 87 | cuda[SR] = va_arg(va, int); |
|
- | 88 | cuda[B] = cuda[B] | TACK; |
|
- | 89 | } |
|
- | 90 | ||
- | 91 | va_end(va); |
|
- | 92 | ||
- | 93 | cuda[B] = cuda[B] | TIP; |
|
- | 94 | } |
|
- | 95 | } |
|
- | 96 | ||
- | 97 | ||
- | 98 | static void receive_packet(__u8 *kind, index_t count, __u8 data[]) |
|
- | 99 | { |
|
- | 100 | cuda[B] = cuda[B] & ~TIP; |
|
- | 101 | *kind = cuda[SR]; |
|
- | 102 | ||
- | 103 | index_t i; |
|
- | 104 | for (i = 0; i < count; i++) |
|
- | 105 | data[i] = cuda[SR]; |
|
- | 106 | ||
- | 107 | cuda[B] = cuda[B] | TIP; |
|
- | 108 | } |
|
51 | 109 | ||
52 | 110 | ||
53 | /* Called from getc(). */ |
111 | /* Called from getc(). */ |
54 | static void cuda_resume(chardev_t *d) |
112 | static void cuda_resume(chardev_t *d) |
55 | { |
113 | { |
56 | } |
114 | } |
57 | 115 | ||
58 | 116 | ||
59 | /* Called from getc(). */ |
117 | /* Called from getc(). */ |
60 | static void cuda_suspend(chardev_t *d) |
118 | static void cuda_suspend(chardev_t *d) |
61 | { |
119 | { |
62 | } |
120 | } |
63 | 121 | ||
64 | 122 | ||
65 | static char key_read(chardev_t *d) |
123 | static char key_read(chardev_t *d) |
66 | { |
124 | { |
67 | char ch; |
125 | char ch; |
68 | 126 | ||
69 | ch = 0; |
127 | ch = 0; |
70 | return ch; |
128 | return ch; |
71 | } |
129 | } |
72 | 130 | ||
73 | 131 | ||
74 | static chardev_t kbrd; |
132 | static chardev_t kbrd; |
75 | static chardev_operations_t ops = { |
133 | static chardev_operations_t ops = { |
76 | .suspend = cuda_suspend, |
134 | .suspend = cuda_suspend, |
77 | .resume = cuda_resume, |
135 | .resume = cuda_resume, |
78 | .read = key_read |
136 | .read = key_read |
79 | }; |
137 | }; |
80 | 138 | ||
81 | #include <print.h> |
- | |
- | 139 | ||
82 | static void cuda_irq(int n, istate_t *istate) |
140 | static void cuda_irq(int n, istate_t *istate) |
83 | { |
141 | { |
- | 142 | __u8 kind; |
|
- | 143 | __u8 data[4]; |
|
- | 144 | ||
84 | printf("Got cuda msg\n"); |
145 | receive_packet(&kind, 4, data); |
- | 146 | ||
- | 147 | if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c)) { |
|
- | 148 | __u8 key = data[2]; |
|
- | 149 | ||
- | 150 | if ((key & 0x80) != 0x80) |
|
- | 151 | chardev_push_character(&kbrd, lchars[key & 0x7f]); |
|
- | 152 | } |
|
85 | } |
153 | } |
86 | 154 | ||
- | 155 | ||
87 | void cuda_init(void) |
156 | void cuda_init(__address base, size_t size) |
88 | { |
157 | { |
- | 158 | cuda = (__u8 *) hw_map(base, size); |
|
- | 159 | ||
89 | int_register(CUDA_IRQ, "cuda", cuda_irq); |
160 | int_register(CUDA_IRQ, "cuda", cuda_irq); |
90 | pic_enable_interrupt(CUDA_IRQ); |
161 | pic_enable_interrupt(CUDA_IRQ); |
91 | 162 | ||
92 | chardev_initialize("cuda_kbd", &kbrd, &ops); |
163 | chardev_initialize("cuda_kbd", &kbrd, &ops); |
93 | stdin = &kbrd; |
164 | stdin = &kbrd; |
94 | } |
165 | } |
95 | 166 | ||
96 | 167 | ||
97 | void cuda_packet(const __u8 data) |
- | |
98 | { |
- | |
99 | cuda[B] = cuda[B] | TIP; |
- | |
100 | cuda[ACR] = cuda[ACR] | SR_OUT; |
- | |
101 | cuda[SR] = CUDA_PACKET; |
- | |
102 | cuda[B] = cuda[B] & ~TIP; |
- | |
103 | - | ||
104 | cuda[ACR] = cuda[ACR] | SR_OUT; |
- | |
105 | cuda[SR] = data; |
- | |
106 | cuda[B] = cuda[B] | TACK; |
- | |
107 | - | ||
108 | cuda[B] = cuda[B] | TIP; |
- | |
109 | } |
- | |
110 | - | ||
111 | - | ||
112 | void cpu_halt(void) { |
168 | void cpu_halt(void) { |
113 | #ifdef CONFIG_POWEROFF |
169 | #ifdef CONFIG_POWEROFF |
114 | cuda_packet(CUDA_POWERDOWN); |
170 | send_packet(PACKET_CUDA, 1, CUDA_POWERDOWN); |
115 | #else |
171 | #else |
- | 172 | send_packet(PACKET_NULL, 0); |
|
- | 173 | #endif |
|
116 | asm volatile ( |
174 | asm volatile ( |
117 | "b 0\n" |
175 | "b 0\n" |
118 | ); |
176 | ); |
119 | #endif |
- | |
120 | cpu_sleep(); |
- | |
121 | } |
177 | } |
122 | 178 |