Rev 4346 | Go to most recent revision | Only display areas with differences | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 4346 | Rev 4347 | ||
---|---|---|---|
1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Jakub Jermar |
2 | * Copyright (c) 2005 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 | /** @addtogroup genericconsole |
29 | /** @addtogroup genericconsole |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <console/chardev.h> |
35 | #include <console/chardev.h> |
36 | #include <putchar.h> |
- | |
37 | #include <synch/waitq.h> |
36 | #include <synch/waitq.h> |
38 | #include <synch/spinlock.h> |
37 | #include <synch/spinlock.h> |
39 | 38 | ||
40 | /** Initialize input character device. |
39 | /** Initialize input character device. |
41 | * |
40 | * |
42 | * @param indev Input character device. |
41 | * @param indev Input character device. |
43 | * @param op Implementation of input character device operations. |
42 | * @param op Implementation of input character device operations. |
44 | * |
43 | * |
45 | */ |
44 | */ |
46 | void indev_initialize(char *name, indev_t *indev, |
45 | void indev_initialize(char *name, indev_t *indev, |
47 | indev_operations_t *op) |
46 | indev_operations_t *op) |
48 | { |
47 | { |
49 | indev->name = name; |
48 | indev->name = name; |
50 | waitq_initialize(&indev->wq); |
49 | waitq_initialize(&indev->wq); |
51 | spinlock_initialize(&indev->lock, "indev"); |
50 | spinlock_initialize(&indev->lock, "indev"); |
52 | indev->counter = 0; |
51 | indev->counter = 0; |
53 | indev->index = 0; |
52 | indev->index = 0; |
54 | indev->op = op; |
53 | indev->op = op; |
55 | } |
54 | } |
56 | 55 | ||
57 | /** Push character read from input character device. |
56 | /** Push character read from input character device. |
58 | * |
57 | * |
59 | * @param indev Input character device. |
58 | * @param indev Input character device. |
60 | * @param ch Character being pushed. |
59 | * @param ch Character being pushed. |
61 | * |
60 | * |
62 | */ |
61 | */ |
63 | void indev_push_character(indev_t *indev, uint8_t ch) |
62 | void indev_push_character(indev_t *indev, uint8_t ch) |
64 | { |
63 | { |
65 | ASSERT(indev); |
64 | ASSERT(indev); |
66 | 65 | ||
67 | spinlock_lock(&indev->lock); |
66 | spinlock_lock(&indev->lock); |
68 | if (indev->counter == INDEV_BUFLEN - 1) { |
67 | if (indev->counter == INDEV_BUFLEN - 1) { |
69 | /* Buffer full */ |
68 | /* Buffer full */ |
70 | spinlock_unlock(&indev->lock); |
69 | spinlock_unlock(&indev->lock); |
71 | return; |
70 | return; |
72 | } |
71 | } |
73 | 72 | ||
74 | indev->counter++; |
73 | indev->counter++; |
75 | indev->buffer[indev->index++] = ch; |
74 | indev->buffer[indev->index++] = ch; |
76 | 75 | ||
77 | /* Index modulo size of buffer */ |
76 | /* Index modulo size of buffer */ |
78 | indev->index = indev->index % INDEV_BUFLEN; |
77 | indev->index = indev->index % INDEV_BUFLEN; |
79 | waitq_wakeup(&indev->wq, WAKEUP_FIRST); |
78 | waitq_wakeup(&indev->wq, WAKEUP_FIRST); |
80 | spinlock_unlock(&indev->lock); |
79 | spinlock_unlock(&indev->lock); |
81 | } |
80 | } |
82 | 81 | ||
83 | /** Initialize output character device. |
82 | /** Initialize output character device. |
84 | * |
83 | * |
85 | * @param outdev Output character device. |
84 | * @param outdev Output character device. |
86 | * @param op Implementation of output character device operations. |
85 | * @param op Implementation of output character device operations. |
87 | * |
86 | * |
88 | */ |
87 | */ |
89 | void outdev_initialize(char *name, outdev_t *outdev, |
88 | void outdev_initialize(char *name, outdev_t *outdev, |
90 | outdev_operations_t *op) |
89 | outdev_operations_t *op) |
91 | { |
90 | { |
92 | outdev->name = name; |
91 | outdev->name = name; |
93 | spinlock_initialize(&outdev->lock, "outdev"); |
92 | spinlock_initialize(&outdev->lock, "outdev"); |
94 | outdev->op = op; |
93 | outdev->op = op; |
95 | } |
94 | } |
96 | 95 | ||
97 | /** @} |
96 | /** @} |
98 | */ |
97 | */ |
99 | 98 |