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lspci: Add numerical display

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Jean-Baptiste Boric 2021-01-26 18:40:44 +01:00 • committed by Andreas Kling
parent 3ff88a1d77
commit ccfb3bef75
Notes: sideshowbarker 2024-07-18 22:50:31 +09:00
1 changed files with 28 additions and 9 deletions
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37
Userland/Utilities/lspci.cpp
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@ -28,11 +28,17 @@
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/String.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibPCIDB/Database.h>
#include <stdio.h>
int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
static bool flag_show_numerical = false;
static const char* format_numerical = "{:04x}:{:02x}:{:02x}.{} {}: {}:{} (rev {:02x})";
static const char* format_textual = "{:04x}:{:02x}:{:02x}.{} {}: {} {} (rev {:02x})";
int main(int argc, char** argv)
{
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
@ -51,9 +57,21 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
unveil(nullptr, nullptr);
auto db = PCIDB::Database::open();
if (!db)
warnln("Couldn't open PCI ID database");
Core::ArgsParser args_parser;
args_parser.set_general_help("List PCI devices.");
args_parser.add_option(flag_show_numerical, "Show numerical IDs", "numerical", 'n');
args_parser.parse(argc, argv);
const char* format = flag_show_numerical ? format_numerical : format_textual;
AK::RefPtr<PCIDB::Database> db;
if (!flag_show_numerical) {
db = PCIDB::Database::open();
if (!db) {
warnln("Couldn't open PCI ID database");
flag_show_numerical = true;
}
}
auto proc_pci = Core::File::construct("/proc/pci");
if (!proc_pci->open(Core::IODevice::ReadOnly)) {
@ -69,7 +87,7 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
auto file_contents = proc_pci->read_all();
auto json = JsonValue::from_string(file_contents);
ASSERT(json.has_value());
json.value().as_array().for_each([db](auto& value) {
json.value().as_array().for_each([db, format](auto& value) {
auto dev = value.as_object();
auto seg = dev.get("seg").to_u32();
auto bus = dev.get("bus").to_u32();
@ -79,6 +97,7 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
auto device_id = dev.get("device_id").to_u32();
auto revision_id = dev.get("revision_id").to_u32();
auto class_id = dev.get("class").to_u32();
auto subclass_id = dev.get("subclass").to_u32();
String vendor_name;
String device_name;
@ -91,13 +110,13 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
}
if (vendor_name.is_empty())
vendor_name = String::format("%02x", vendor_id);
vendor_name = String::format("%04x", vendor_id);
if (device_name.is_empty())
device_name = String::format("%02x", device_id);
device_name = String::format("%04x", device_id);
if (class_name.is_empty())
class_name = String::format("%04x", class_id);
class_name = String::format("%02x%02x", class_id, subclass_id);
outln("{:04x}:{:02x}:{:02x}.{} {}: {} {} (rev {:02x})", seg, bus, slot, function, class_name, vendor_name, device_name, revision_id);
outln(format, seg, bus, slot, function, class_name, vendor_name, device_name, revision_id);
});
return 0;