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1 | /* |
1 | /* |
2 | * Copyright (c) 2009 Martin Decky |
2 | * Copyright (c) 2009 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 | /** @addtogroup genarch |
29 | /** @addtogroup genarch |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** |
32 | /** |
33 | * @file |
33 | * @file |
34 | * @brief Dummy serial line input. |
34 | * @brief Dummy serial line input. |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #include <genarch/drivers/dsrln/dsrlnin.h> |
37 | #include <genarch/drivers/dsrln/dsrlnin.h> |
38 | #include <console/chardev.h> |
38 | #include <console/chardev.h> |
39 | #include <mm/slab.h> |
39 | #include <mm/slab.h> |
40 | #include <arch/asm.h> |
40 | #include <arch/asm.h> |
41 | #include <ddi/device.h> |
41 | #include <ddi/device.h> |
42 | 42 | ||
43 | static indev_operations_t kbrdin_ops = { |
43 | static indev_operations_t kbrdin_ops = { |
44 | .poll = NULL |
44 | .poll = NULL |
45 | }; |
45 | }; |
46 | 46 | ||
47 | static irq_ownership_t dsrlnin_claim(irq_t *irq) |
47 | static irq_ownership_t dsrlnin_claim(irq_t *irq) |
48 | { |
48 | { |
49 | return IRQ_ACCEPT; |
49 | return IRQ_ACCEPT; |
50 | } |
50 | } |
51 | 51 | ||
52 | static void dsrlnin_irq_handler(irq_t *irq) |
52 | static void dsrlnin_irq_handler(irq_t *irq) |
53 | { |
53 | { |
54 | dsrlnin_instance_t *instance = irq->instance; |
54 | dsrlnin_instance_t *instance = irq->instance; |
55 | dsrlnin_t *dev = instance->dsrlnin; |
55 | dsrlnin_t *dev = instance->dsrlnin; |
56 | 56 | ||
57 | indev_push_character(&instance->kbrdin, pio_read_8(&dev->data)); |
57 | indev_push_character(&instance->kbrdin, pio_read_8(&dev->data)); |
58 | } |
58 | } |
59 | 59 | ||
60 | indev_t *dsrlnin_init(dsrlnin_t *dev, inr_t inr) |
60 | indev_t *dsrlnin_init(dsrlnin_t *dev, inr_t inr) |
61 | { |
61 | { |
62 | dsrlnin_instance_t *instance |
62 | dsrlnin_instance_t *instance |
63 | = malloc(sizeof(dsrlnin_instance_t), FRAME_ATOMIC); |
63 | = malloc(sizeof(dsrlnin_instance_t), FRAME_ATOMIC); |
64 | if (!instance) |
64 | if (!instance) |
65 | return NULL; |
65 | return NULL; |
66 | 66 | ||
67 | indev_initialize("dsrlnin", &instance->kbrdin, &kbrdin_ops); |
67 | indev_initialize("dsrlnin", &instance->kbrdin, &kbrdin_ops); |
68 | 68 | ||
69 | instance->dsrlnin = dev; |
69 | instance->dsrlnin = dev; |
70 | 70 | ||
71 | irq_initialize(&instance->irq); |
71 | irq_initialize(&instance->irq); |
72 | instance->irq.devno = device_assign_devno(); |
72 | instance->irq.devno = device_assign_devno(); |
73 | instance->irq.inr = inr; |
73 | instance->irq.inr = inr; |
74 | instance->irq.claim = dsrlnin_claim; |
74 | instance->irq.claim = dsrlnin_claim; |
75 | instance->irq.handler = dsrlnin_irq_handler; |
75 | instance->irq.handler = dsrlnin_irq_handler; |
76 | instance->irq.instance = instance; |
76 | instance->irq.instance = instance; |
77 | irq_register(&instance->irq); |
77 | irq_register(&instance->irq); |
78 | 78 | ||
79 | return &instance->kbrdin; |
79 | return &instance->kbrdin; |
80 | } |
80 | } |
81 | 81 | ||
82 | /** @} |
82 | /** @} |
83 | */ |
83 | */ |
84 | 84 |