Subversion Repositories HelenOS

Rev

Rev 3635 | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3635 Rev 3766
1 
/*
 1 
/*
2 
 * Copyright (c) 2006 Jakub Jermar, Jakub vana
 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>
38 
#include <mm/slab.h>
 39 
#include <mm/slab.h>
39 
#include <errno.h>
 40 
#include <errno.h>
40 
 
 41 
 
41 
#define IO_MEMMAP_PAGES 16384
 42 
#define IO_MEMMAP_PAGES 16384
42 
#define PORTS_PER_PAGE 4
 43 
#define PORTS_PER_PAGE  4
43 
 
 44 
 
44 
/** Enable I/O space range for task.
 45 
/** Enable I/O space range for task.
45 
 *
 46 
 *
46 
 * Interrupts are disabled and task is locked.
 47 
 * Interrupts are disabled and task is locked.
47 
 *
 48 
 *
48 
 * @param task Task.
 49 
 * @param task      Task.
49 
 * @param ioaddr Startign I/O space address.
 50 
 * @param ioaddr    Starting I/O space address.
50 
 * @param size Size of the enabled I/O range.
 51 
 * @param size      Size of the enabled I/O range.
51 
 *
 52 
 *
52 
 * @return 0 on success or an error code from errno.h.
 53 
 * @return 0 on success or an error code from errno.h.
53 
 */
 54 
 */
54 
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)
55 
{
 56 
{
56 
 
 - 
 
57 
    if(!task->arch.iomap)
 57 
    if (!task->arch.iomap) {
58 
    {
 - 
 
59 
        uint8_t *map;
 58 
        uint8_t *map;
- 
 
 59 
 
60 
        task->arch.iomap=malloc(sizeof(bitmap_t),0);
 60 
        task->arch.iomap = malloc(sizeof(bitmap_t), 0);
61 
        map=malloc(BITS2BYTES(IO_MEMMAP_PAGES),0);
 61 
        map = malloc(BITS2BYTES(IO_MEMMAP_PAGES), 0);
62 
        if(!map)
 62 
        if(!map)
63 
            return ENOMEM;
 63 
            return ENOMEM;
64 
        bitmap_initialize(task->arch.iomap,map,IO_MEMMAP_PAGES);   
 64 
        bitmap_initialize(task->arch.iomap, map, IO_MEMMAP_PAGES);
65 
        bitmap_clear_range(task->arch.iomap,0,IO_MEMMAP_PAGES);
 65 
        bitmap_clear_range(task->arch.iomap, 0, IO_MEMMAP_PAGES);
66 
    }
 66 
    }
67 
   
 67 
   
68 
    uintptr_t iopage = ioaddr / PORTS_PER_PAGE;
 68 
    uintptr_t iopage = ioaddr / PORTS_PER_PAGE;
69 
    size = ALIGN_UP (size+ioaddr-4*iopage,PORTS_PER_PAGE);
 69 
    size = ALIGN_UP(size + ioaddr - 4 * iopage, PORTS_PER_PAGE);
70 
    bitmap_set_range(task->arch.iomap,iopage,size/4);
 70 
    bitmap_set_range(task->arch.iomap, iopage, size / 4);
71 
 
 - 
 
72 
 
 71 
 
73 
    return 0;
 72 
    return 0;
74 
}
 73 
}
75 
 
 74 
 
76 
/** @}
 75 
/** @}
77 
 */
 76 
 */
78 
 
 77