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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 = { |
- | |
| 44 | .poll = NULL |
- | |
| 45 | }; |
- | |
| 46 | - | ||
| 47 | static irq_ownership_t dsrlnin_claim(irq_t *irq) |
43 | static irq_ownership_t dsrlnin_claim(irq_t *irq) |
| 48 | { |
44 | { |
| 49 | return IRQ_ACCEPT; |
45 | return IRQ_ACCEPT; |
| 50 | } |
46 | } |
| 51 | 47 | ||
| 52 | static void dsrlnin_irq_handler(irq_t *irq) |
48 | static void dsrlnin_irq_handler(irq_t *irq) |
| 53 | { |
49 | { |
| 54 | dsrlnin_instance_t *instance = irq->instance; |
50 | dsrlnin_instance_t *instance = irq->instance; |
| 55 | dsrlnin_t *dev = instance->dsrlnin; |
51 | dsrlnin_t *dev = instance->dsrlnin; |
| 56 | 52 | ||
| 57 | indev_push_character(&instance->kbrdin, pio_read_8(&dev->data)); |
53 | indev_push_character(instance->srlnin, pio_read_8(&dev->data)); |
| 58 | } |
54 | } |
| 59 | 55 | ||
| 60 | indev_t *dsrlnin_init(dsrlnin_t *dev, inr_t inr) |
56 | dsrlnin_instance_t *dsrlnin_init(dsrlnin_t *dev, inr_t inr) |
| 61 | { |
57 | { |
| 62 | dsrlnin_instance_t *instance |
58 | dsrlnin_instance_t *instance |
| 63 | = malloc(sizeof(dsrlnin_instance_t), FRAME_ATOMIC); |
59 | = malloc(sizeof(dsrlnin_instance_t), FRAME_ATOMIC); |
| 64 | if (!instance) |
60 | if (instance) { |
| - | 61 | instance->dsrlnin = dev; |
|
| 65 | return NULL; |
62 | instance->srlnin = NULL; |
| 66 | 63 | ||
| 67 | indev_initialize("dsrlnin", &instance->kbrdin, &kbrdin_ops); |
64 | irq_initialize(&instance->irq); |
| - | 65 | instance->irq.devno = device_assign_devno(); |
|
| - | 66 | instance->irq.inr = inr; |
|
| - | 67 | instance->irq.claim = dsrlnin_claim; |
|
| - | 68 | instance->irq.handler = dsrlnin_irq_handler; |
|
| - | 69 | instance->irq.instance = instance; |
|
| - | 70 | } |
|
| 68 | 71 | ||
| - | 72 | return instance; |
|
| - | 73 | } |
|
| - | 74 | ||
| - | 75 | void dsrlnin_wire(dsrlnin_instance_t *instance, indev_t *srlnin) |
|
| - | 76 | { |
|
| - | 77 | ASSERT(instance); |
|
| 69 | instance->dsrlnin = dev; |
78 | ASSERT(srlnin); |
| 70 | 79 | ||
| 71 | irq_initialize(&instance->irq); |
- | |
| 72 | instance->irq.devno = device_assign_devno(); |
- | |
| 73 | instance->irq.inr = inr; |
80 | instance->srlnin = srlnin; |
| 74 | instance->irq.claim = dsrlnin_claim; |
- | |
| 75 | instance->irq.handler = dsrlnin_irq_handler; |
- | |
| 76 | instance->irq.instance = instance; |
- | |
| 77 | irq_register(&instance->irq); |
81 | irq_register(&instance->irq); |
| 78 | - | ||
| 79 | return &instance->kbrdin; |
- | |
| 80 | } |
82 | } |
| 81 | 83 | ||
| 82 | /** @} |
84 | /** @} |
| 83 | */ |
85 | */ |
| 84 | 86 | ||