| 1 | /*
|
|---|
| 2 | * Copyright (c) 2006 Jakub Jermar
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 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
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 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
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 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
|
|---|
| 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
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | /** @addtogroup kernel_generic_ddi
|
|---|
| 30 | * @{
|
|---|
| 31 | */
|
|---|
| 32 | /** @file
|
|---|
| 33 | */
|
|---|
| 34 |
|
|---|
| 35 | #ifndef KERN_DDI_H_
|
|---|
| 36 | #define KERN_DDI_H_
|
|---|
| 37 |
|
|---|
| 38 | #include <typedefs.h>
|
|---|
| 39 | #include <abi/ddi/arg.h>
|
|---|
| 40 | #include <proc/task.h>
|
|---|
| 41 | #include <adt/odict.h>
|
|---|
| 42 |
|
|---|
| 43 | /** Structure representing contiguous physical memory area. */
|
|---|
| 44 | typedef struct parea {
|
|---|
| 45 | /** Link to @c pareas ordered dictionary */
|
|---|
| 46 | odlink_t lpareas;
|
|---|
| 47 |
|
|---|
| 48 | /** Physical base of the area. */
|
|---|
| 49 | uintptr_t pbase;
|
|---|
| 50 | /** Number of frames in the area. */
|
|---|
| 51 | pfn_t frames;
|
|---|
| 52 | /** Allow mapping by unprivileged tasks. */
|
|---|
| 53 | bool unpriv;
|
|---|
| 54 | /** Indicate whether the area is actually mapped. */
|
|---|
| 55 | bool mapped;
|
|---|
| 56 | /** Called when @c mapped field has changed */
|
|---|
| 57 | void (*mapped_changed)(void *);
|
|---|
| 58 | /** Callback argument */
|
|---|
| 59 | void *arg;
|
|---|
| 60 | } parea_t;
|
|---|
| 61 |
|
|---|
| 62 | extern void ddi_init(void);
|
|---|
| 63 | extern void ddi_parea_init(parea_t *);
|
|---|
| 64 | extern void ddi_parea_register(parea_t *);
|
|---|
| 65 | extern void ddi_parea_unmap_notify(parea_t *);
|
|---|
| 66 |
|
|---|
| 67 | extern void *pio_map(void *, size_t);
|
|---|
| 68 | extern void pio_unmap(void *, void *, size_t);
|
|---|
| 69 |
|
|---|
| 70 | extern sys_errno_t sys_physmem_map(uintptr_t, size_t, unsigned int, uspace_ptr_uintptr_t,
|
|---|
| 71 | uintptr_t);
|
|---|
| 72 | extern sys_errno_t sys_physmem_unmap(uintptr_t);
|
|---|
| 73 |
|
|---|
| 74 | extern sys_errno_t sys_dmamem_map(size_t, unsigned int, unsigned int, uspace_ptr_uintptr_t,
|
|---|
| 75 | uspace_ptr_uintptr_t, uintptr_t);
|
|---|
| 76 | extern sys_errno_t sys_dmamem_unmap(uintptr_t, size_t, unsigned int);
|
|---|
| 77 |
|
|---|
| 78 | extern sys_errno_t sys_iospace_enable(uspace_ptr_ddi_ioarg_t);
|
|---|
| 79 | extern sys_errno_t sys_iospace_disable(uspace_ptr_ddi_ioarg_t);
|
|---|
| 80 |
|
|---|
| 81 | /*
|
|---|
| 82 | * Interface to be implemented by all architectures.
|
|---|
| 83 | */
|
|---|
| 84 | extern errno_t ddi_iospace_enable_arch(task_t *, uintptr_t, size_t);
|
|---|
| 85 | extern errno_t ddi_iospace_disable_arch(task_t *, uintptr_t, size_t);
|
|---|
| 86 |
|
|---|
| 87 | #endif
|
|---|
| 88 |
|
|---|
| 89 | /** @}
|
|---|
| 90 | */
|
|---|
