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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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 are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <AK/JsonArray.h>
28#include <AK/JsonObject.h>
29#include <AK/String.h>
30#include <LibCore/File.h>
31#include <LibPCIDB/Database.h>
32#include <stdio.h>
33
34int main(int argc, char** argv)
35{
36 UNUSED_PARAM(argc);
37 UNUSED_PARAM(argv);
38
39 if (pledge("stdio rpath", nullptr) < 0) {
40 perror("pledge");
41 return 1;
42 }
43
44 if (unveil("/res/pci.ids", "r") < 0) {
45 perror("unveil");
46 return 1;
47 }
48
49 if (unveil("/proc/pci", "r") < 0) {
50 perror("unveil");
51 return 1;
52 }
53
54 unveil(nullptr, nullptr);
55
56 auto db = PCIDB::Database::open();
57 if (!db)
58 fprintf(stderr, "Couldn't open PCI ID database\n");
59
60 auto proc_pci = Core::File::construct("/proc/pci");
61 if (!proc_pci->open(Core::IODevice::ReadOnly)) {
62 fprintf(stderr, "Error: %s\n", proc_pci->error_string());
63 return 1;
64 }
65
66 if (pledge("stdio", nullptr) < 0) {
67 perror("pledge");
68 return 1;
69 }
70
71 auto file_contents = proc_pci->read_all();
72 auto json = JsonValue::from_string(file_contents).as_array();
73 json.for_each([db](auto& value) {
74 auto dev = value.as_object();
75 auto seg = dev.get("seg").to_u32();
76 auto bus = dev.get("bus").to_u32();
77 auto slot = dev.get("slot").to_u32();
78 auto function = dev.get("function").to_u32();
79 auto vendor_id = dev.get("vendor_id").to_u32();
80 auto device_id = dev.get("device_id").to_u32();
81 auto revision_id = dev.get("revision_id").to_u32();
82 auto class_id = dev.get("class").to_u32();
83
84 String vendor_name;
85 String device_name;
86 String class_name;
87
88 if (db) {
89 vendor_name = db->get_vendor(vendor_id);
90 device_name = db->get_device(vendor_id, device_id);
91 class_name = db->get_class(class_id);
92 }
93
94 if (vendor_name.is_empty())
95 vendor_name = String::format("%02x", vendor_id);
96 if (device_name.is_empty())
97 device_name = String::format("%02x", device_id);
98 if (class_name.is_empty())
99 class_name = String::format("%04x", class_id);
100
101 printf("%04x:%02x:%02x.%d %s: %s %s (rev %02x)\n",
102 seg, bus, slot, function,
103 class_name.characters(), vendor_name.characters(),
104 device_name.characters(), revision_id);
105 });
106
107 return 0;
108}