source: mainline/uspace/lib/c/generic/device/hw_res.c@ 96b02eb9

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 96b02eb9 was 96b02eb9, checked in by Martin Decky <martin@…>, 15 years ago

more unification of basic types

  • use sysarg_t and native_t (unsigned and signed variant) in both kernel and uspace
  • remove ipcarg_t in favour of sysarg_t

(no change in functionality)

  • Property mode set to 100644
File size: 2.3 KB
Line 
1/*
2 * Copyright (c) 2010 Lenka Trochtova
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 libc
30 * @{
31 */
32/** @file
33 */
34
35#include <device/hw_res.h>
36#include <errno.h>
37#include <async.h>
38#include <malloc.h>
39
40bool get_hw_resources(int dev_phone, hw_resource_list_t *hw_resources)
41{
42 sysarg_t count = 0;
43 int rc = async_req_1_1(dev_phone, DEV_IFACE_ID(HW_RES_DEV_IFACE), GET_RESOURCE_LIST, &count);
44 hw_resources->count = count;
45 if (EOK != rc) {
46 return false;
47 }
48
49 size_t size = count * sizeof(hw_resource_t);
50 hw_resources->resources = (hw_resource_t *)malloc(size);
51 if (NULL == hw_resources->resources) {
52 return false;
53 }
54
55 rc = async_data_read_start(dev_phone, hw_resources->resources, size);
56 if (EOK != rc) {
57 free(hw_resources->resources);
58 hw_resources->resources = NULL;
59 return false;
60 }
61
62 return true;
63}
64
65bool enable_interrupt(int dev_phone)
66{
67 int rc = async_req_1_0(dev_phone, DEV_IFACE_ID(HW_RES_DEV_IFACE), ENABLE_INTERRUPT);
68 return rc == EOK;
69}
70
71
72
73 /** @}
74 */
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