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| Rev 3022 | Rev 4055 | ||
|---|---|---|---|
| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2006 Jakub Jermar |
2 | * Copyright (c) 2006 Jakub Jermar |
| - | 3 | * Copyright (c) 2008 Jakub vana |
|
| 3 | * All rights reserved. |
4 | * All rights reserved. |
| 4 | * |
5 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
8 | * are met: |
| 8 | * |
9 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
| 16 | * |
17 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (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. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
28 | */ |
| 28 | 29 | ||
| 29 | /** @addtogroup ia64ddi |
30 | /** @addtogroup ia64ddi |
| 30 | * @{ |
31 | * @{ |
| 31 | */ |
32 | */ |
| 32 | /** @file |
33 | /** @file |
| 33 | */ |
34 | */ |
| 34 | 35 | ||
| 35 | #include <ddi/ddi.h> |
36 | #include <ddi/ddi.h> |
| 36 | #include <proc/task.h> |
37 | #include <proc/task.h> |
| 37 | #include <arch/types.h> |
38 | #include <arch/types.h> |
| - | 39 | #include <mm/slab.h> |
|
| - | 40 | #include <errno.h> |
|
| - | 41 | ||
| - | 42 | #define IO_MEMMAP_PAGES 16384 |
|
| - | 43 | #define PORTS_PER_PAGE 4 |
|
| 38 | 44 | ||
| 39 | /** Enable I/O space range for task. |
45 | /** Enable I/O space range for task. |
| 40 | * |
46 | * |
| 41 | * Interrupts are disabled and task is locked. |
47 | * Interrupts are disabled and task is locked. |
| 42 | * |
48 | * |
| 43 | * @param task Task. |
49 | * @param task Task. |
| 44 | * @param ioaddr Startign I/O space address. |
50 | * @param ioaddr Starting I/O space address. |
| 45 | * @param size Size of the enabled I/O range. |
51 | * @param size Size of the enabled I/O range. |
| 46 | * |
52 | * |
| 47 | * @return 0 on success or an error code from errno.h. |
53 | * @return 0 on success or an error code from errno.h. |
| 48 | */ |
54 | */ |
| 49 | int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size) |
55 | int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size) |
| 50 | { |
56 | { |
| - | 57 | if (!task->arch.iomap) { |
|
| - | 58 | uint8_t *map; |
|
| - | 59 | ||
| - | 60 | task->arch.iomap = malloc(sizeof(bitmap_t), 0); |
|
| - | 61 | map = malloc(BITS2BYTES(IO_MEMMAP_PAGES), 0); |
|
| - | 62 | if(!map) |
|
| - | 63 | return ENOMEM; |
|
| - | 64 | bitmap_initialize(task->arch.iomap, map, IO_MEMMAP_PAGES); |
|
| - | 65 | bitmap_clear_range(task->arch.iomap, 0, IO_MEMMAP_PAGES); |
|
| - | 66 | } |
|
| - | 67 | ||
| - | 68 | uintptr_t iopage = ioaddr / PORTS_PER_PAGE; |
|
| - | 69 | size = ALIGN_UP(size + ioaddr - 4 * iopage, PORTS_PER_PAGE); |
|
| - | 70 | bitmap_set_range(task->arch.iomap, iopage, size / 4); |
|
| - | 71 | ||
| 51 | return 0; |
72 | return 0; |
| 52 | } |
73 | } |
| 53 | 74 | ||
| 54 | /** @} |
75 | /** @} |
| 55 | */ |
76 | */ |
| 56 | 77 | ||