source: mainline/kernel/generic/include/ddi/ddi.h@ 3061bc1

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 3061bc1 was b7fd2a0, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 7 years ago

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.
  • Property mode set to 100644
File size: 2.7 KB
RevLine 
[9a8d91b]1/*
[df4ed85]2 * Copyright (c) 2006 Jakub Jermar
[9a8d91b]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
[06e1e95]29/** @addtogroup genericddi
[b45c443]30 * @{
31 */
32/** @file
33 */
34
[06e1e95]35#ifndef KERN_DDI_H_
36#define KERN_DDI_H_
[9a8d91b]37
[d99c1d2]38#include <typedefs.h>
[c0699467]39#include <abi/ddi/arg.h>
[b3f8fb7]40#include <proc/task.h>
[ae318d3]41#include <adt/list.h>
[9a8d91b]42
[f8ddd17]43/** Structure representing contiguous physical memory area. */
44typedef struct {
[d7533c7]45 link_t link; /**< Linked list link */
[ae318d3]46
[d7533c7]47 uintptr_t pbase; /**< Physical base of the area. */
48 pfn_t frames; /**< Number of frames in the area. */
49 bool unpriv; /**< Allow mapping by unprivileged tasks. */
[b366a6f4]50 bool mapped; /**< Indicate whether the area is actually
51 mapped. */
[f8ddd17]52} parea_t;
53
54extern void ddi_init(void);
[da1bafb]55extern void ddi_parea_register(parea_t *);
[f8ddd17]56
[b7fd2a0]57extern sys_errno_t sys_physmem_map(uintptr_t, size_t, unsigned int, void *,
[fbcdeb8]58 uintptr_t);
[b7fd2a0]59extern sys_errno_t sys_physmem_unmap(uintptr_t);
[c6ae4c2]60
[b7fd2a0]61extern sys_errno_t sys_dmamem_map(size_t, unsigned int, unsigned int, void *,
[fbcdeb8]62 void *, uintptr_t);
[b7fd2a0]63extern sys_errno_t sys_dmamem_unmap(uintptr_t, size_t, unsigned int);
[c6ae4c2]64
[b7fd2a0]65extern sys_errno_t sys_iospace_enable(ddi_ioarg_t *);
66extern sys_errno_t sys_iospace_disable(ddi_ioarg_t *);
[f52e54da]67
68/*
69 * Interface to be implemented by all architectures.
70 */
[b7fd2a0]71extern errno_t ddi_iospace_enable_arch(task_t *, uintptr_t, size_t);
72extern errno_t ddi_iospace_disable_arch(task_t *, uintptr_t, size_t);
[9a8d91b]73
74#endif
[b45c443]75
[06e1e95]76/** @}
[b45c443]77 */
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