source: mainline/uspace/app/tmon/resolve.c

Last change on this file was 80f7c54, checked in by Ondřej Hlavatý <aearsis@…>, 7 years ago

usb: make the code compile on 32-bit architecture

  • Property mode set to 100644
File size: 3.2 KB
Line 
1/*
2 * Copyright (c) 2017 Petr Manek
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 tmon
30 * @{
31 */
32/**
33 * @file
34 * USB diagnostic device resolving.
35 */
36
37#include <loc.h>
38#include <errno.h>
39#include <str_error.h>
40#include <stdio.h>
41#include <usbdiag_iface.h>
42#include "resolve.h"
43
44#define NAME "tmon"
45
46/** Resolve a single function by its class (fail if there is more/less than 1).
47 * @param[out] fun Resolved function handle (if found).
48 *
49 * @return EOK if the function was resolved successfully.
50 */
51int tmon_resolve_default(devman_handle_t *fun)
52{
53 category_id_t diag_cat;
54 service_id_t *svcs;
55 size_t count;
56 int rc;
57
58 if ((rc = loc_category_get_id(USBDIAG_CATEGORY, &diag_cat, 0))) {
59 printf(NAME ": Error resolving category '%s'", USBDIAG_CATEGORY);
60 return rc;
61 }
62
63 if ((rc = loc_category_get_svcs(diag_cat, &svcs, &count))) {
64 printf(NAME ": Error getting list of diagnostic devices.\n");
65 return rc;
66 }
67
68 // There must be exactly one diagnostic device for this to work.
69 if (count != 1) {
70 if (count) {
71 printf(NAME ": Found %zu devices. Please specify which to use.\n", count);
72 } else {
73 printf(NAME ": No diagnostic devices found.\n");
74 }
75 return ENOENT;
76 }
77
78 if ((rc = devman_fun_sid_to_handle(svcs[0], fun))) {
79 printf(NAME ": Error resolving handle of device with "
80 "SID %" PRIun ".\n", svcs[0]);
81 return rc;
82 }
83
84 return EOK;
85}
86
87/** Resolve a function by its name or device path.
88 * @param[in] dev_path Name or device path (see `devman_fun_get_handle` for possible values).
89 * @param[out] fun Resolved function handle (if found).
90 *
91 * @return EOK if the function was resolved successfully.
92 */
93int tmon_resolve_named(const char *dev_path, devman_handle_t *fun)
94{
95 int rc;
96 if ((rc = devman_fun_get_handle(dev_path, fun, 0))) {
97 printf(NAME ": Error resolving handle of device - %s.\n", str_error(rc));
98 return rc;
99 }
100
101 return EOK;
102}
103
104/** @}
105 */
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