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authorFernando S <fsahmkow27@gmail.com>2021-10-23 23:32:16 +0200
committerGitHub <noreply@github.com>2021-10-23 23:32:16 +0200
commit33e92c15ebf3f1cbfb48601108f3eaa70eefe18f (patch)
tree685813e5c402326e30bba9daf6aff9d55cfb8b1a /src/input_common/gcadapter
parentMerge pull request #6515 from german77/gc_thread_safe (diff)
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Diffstat (limited to 'src/input_common/gcadapter')
-rw-r--r--src/input_common/gcadapter/gc_adapter.cpp189
-rw-r--r--src/input_common/gcadapter/gc_adapter.h46
2 files changed, 115 insertions, 120 deletions
diff --git a/src/input_common/gcadapter/gc_adapter.cpp b/src/input_common/gcadapter/gc_adapter.cpp
index 3c3b6fbde..a2f1bb67c 100644
--- a/src/input_common/gcadapter/gc_adapter.cpp
+++ b/src/input_common/gcadapter/gc_adapter.cpp
@@ -14,73 +14,15 @@
namespace GCAdapter {
-class LibUSBContext {
-public:
- explicit LibUSBContext() {
- init_result = libusb_init(&ctx);
- }
-
- ~LibUSBContext() {
- libusb_exit(ctx);
- }
-
- LibUSBContext& operator=(const LibUSBContext&) = delete;
- LibUSBContext(const LibUSBContext&) = delete;
-
- LibUSBContext& operator=(LibUSBContext&&) noexcept = delete;
- LibUSBContext(LibUSBContext&&) noexcept = delete;
-
- [[nodiscard]] int InitResult() const noexcept {
- return init_result;
- }
-
- [[nodiscard]] libusb_context* get() noexcept {
- return ctx;
- }
-
-private:
- libusb_context* ctx;
- int init_result{};
-};
-
-class LibUSBDeviceHandle {
-public:
- explicit LibUSBDeviceHandle(libusb_context* ctx, uint16_t vid, uint16_t pid) noexcept {
- handle = libusb_open_device_with_vid_pid(ctx, vid, pid);
- }
-
- ~LibUSBDeviceHandle() noexcept {
- if (handle) {
- libusb_release_interface(handle, 1);
- libusb_close(handle);
- }
- }
-
- LibUSBDeviceHandle& operator=(const LibUSBDeviceHandle&) = delete;
- LibUSBDeviceHandle(const LibUSBDeviceHandle&) = delete;
-
- LibUSBDeviceHandle& operator=(LibUSBDeviceHandle&&) noexcept = delete;
- LibUSBDeviceHandle(LibUSBDeviceHandle&&) noexcept = delete;
-
- [[nodiscard]] libusb_device_handle* get() noexcept {
- return handle;
- }
-
-private:
- libusb_device_handle* handle{};
-};
-
Adapter::Adapter() {
- if (usb_adapter_handle) {
+ if (usb_adapter_handle != nullptr) {
return;
}
LOG_INFO(Input, "GC Adapter Initialization started");
- libusb_ctx = std::make_unique<LibUSBContext>();
- const int init_res = libusb_ctx->InitResult();
+ const int init_res = libusb_init(&libusb_ctx);
if (init_res == LIBUSB_SUCCESS) {
- adapter_scan_thread =
- std::jthread([this](std::stop_token stop_token) { AdapterScanThread(stop_token); });
+ adapter_scan_thread = std::thread(&Adapter::AdapterScanThread, this);
} else {
LOG_ERROR(Input, "libusb could not be initialized. failed with error = {}", init_res);
}
@@ -90,15 +32,17 @@ Adapter::~Adapter() {
Reset();
}
-void Adapter::AdapterInputThread(std::stop_token stop_token) {
+void Adapter::AdapterInputThread() {
LOG_DEBUG(Input, "GC Adapter input thread started");
s32 payload_size{};
AdapterPayload adapter_payload{};
- adapter_scan_thread = {};
+ if (adapter_scan_thread.joinable()) {
+ adapter_scan_thread.join();
+ }
- while (!stop_token.stop_requested()) {
- libusb_interrupt_transfer(usb_adapter_handle->get(), input_endpoint, adapter_payload.data(),
+ while (adapter_input_thread_running) {
+ libusb_interrupt_transfer(usb_adapter_handle, input_endpoint, adapter_payload.data(),
static_cast<s32>(adapter_payload.size()), &payload_size, 16);
if (IsPayloadCorrect(adapter_payload, payload_size)) {
UpdateControllers(adapter_payload);
@@ -108,8 +52,7 @@ void Adapter::AdapterInputThread(std::stop_token stop_token) {
}
if (restart_scan_thread) {
- adapter_scan_thread =
- std::jthread([this](std::stop_token token) { AdapterScanThread(token); });
+ adapter_scan_thread = std::thread(&Adapter::AdapterScanThread, this);
restart_scan_thread = false;
}
}
@@ -121,7 +64,7 @@ bool Adapter::IsPayloadCorrect(const AdapterPayload& adapter_payload, s32 payloa
adapter_payload[0]);
if (input_error_counter++ > 20) {
LOG_ERROR(Input, "GC adapter timeout, Is the adapter connected?");
- adapter_input_thread.request_stop();
+ adapter_input_thread_running = false;
restart_scan_thread = true;
}
return false;
@@ -153,7 +96,7 @@ void Adapter::UpdatePadType(std::size_t port, ControllerTypes pad_type) {
return;
}
// Device changed reset device and set new type
- pads[port] = {};
+ ResetDevice(port);
pads[port].type = pad_type;
}
@@ -270,9 +213,8 @@ void Adapter::SendVibrations() {
const u8 p3 = pads[2].enable_vibration;
const u8 p4 = pads[3].enable_vibration;
std::array<u8, 5> payload = {rumble_command, p1, p2, p3, p4};
- const int err =
- libusb_interrupt_transfer(usb_adapter_handle->get(), output_endpoint, payload.data(),
- static_cast<s32>(payload.size()), &size, 16);
+ const int err = libusb_interrupt_transfer(usb_adapter_handle, output_endpoint, payload.data(),
+ static_cast<s32>(payload.size()), &size, 16);
if (err) {
LOG_DEBUG(Input, "Adapter libusb write failed: {}", libusb_error_name(err));
if (output_error_counter++ > 5) {
@@ -291,53 +233,56 @@ bool Adapter::RumblePlay(std::size_t port, u8 amplitude) {
return rumble_enabled;
}
-void Adapter::AdapterScanThread(std::stop_token stop_token) {
- usb_adapter_handle = nullptr;
- pads = {};
- while (!stop_token.stop_requested() && !Setup()) {
- std::this_thread::sleep_for(std::chrono::seconds(2));
+void Adapter::AdapterScanThread() {
+ adapter_scan_thread_running = true;
+ adapter_input_thread_running = false;
+ if (adapter_input_thread.joinable()) {
+ adapter_input_thread.join();
+ }
+ ClearLibusbHandle();
+ ResetDevices();
+ while (adapter_scan_thread_running && !adapter_input_thread_running) {
+ Setup();
+ std::this_thread::sleep_for(std::chrono::seconds(1));
}
}
-bool Adapter::Setup() {
- constexpr u16 nintendo_vid = 0x057e;
- constexpr u16 gc_adapter_pid = 0x0337;
- usb_adapter_handle =
- std::make_unique<LibUSBDeviceHandle>(libusb_ctx->get(), nintendo_vid, gc_adapter_pid);
- if (!usb_adapter_handle->get()) {
- return false;
+void Adapter::Setup() {
+ usb_adapter_handle = libusb_open_device_with_vid_pid(libusb_ctx, 0x057e, 0x0337);
+
+ if (usb_adapter_handle == NULL) {
+ return;
}
if (!CheckDeviceAccess()) {
- usb_adapter_handle = nullptr;
- return false;
+ ClearLibusbHandle();
+ return;
}
- libusb_device* const device = libusb_get_device(usb_adapter_handle->get());
+ libusb_device* device = libusb_get_device(usb_adapter_handle);
LOG_INFO(Input, "GC adapter is now connected");
// GC Adapter found and accessible, registering it
if (GetGCEndpoint(device)) {
+ adapter_scan_thread_running = false;
+ adapter_input_thread_running = true;
rumble_enabled = true;
input_error_counter = 0;
output_error_counter = 0;
- adapter_input_thread =
- std::jthread([this](std::stop_token stop_token) { AdapterInputThread(stop_token); });
- return true;
+ adapter_input_thread = std::thread(&Adapter::AdapterInputThread, this);
}
- return false;
}
bool Adapter::CheckDeviceAccess() {
// This fixes payload problems from offbrand GCAdapters
const s32 control_transfer_error =
- libusb_control_transfer(usb_adapter_handle->get(), 0x21, 11, 0x0001, 0, nullptr, 0, 1000);
+ libusb_control_transfer(usb_adapter_handle, 0x21, 11, 0x0001, 0, nullptr, 0, 1000);
if (control_transfer_error < 0) {
LOG_ERROR(Input, "libusb_control_transfer failed with error= {}", control_transfer_error);
}
- s32 kernel_driver_error = libusb_kernel_driver_active(usb_adapter_handle->get(), 0);
+ s32 kernel_driver_error = libusb_kernel_driver_active(usb_adapter_handle, 0);
if (kernel_driver_error == 1) {
- kernel_driver_error = libusb_detach_kernel_driver(usb_adapter_handle->get(), 0);
+ kernel_driver_error = libusb_detach_kernel_driver(usb_adapter_handle, 0);
if (kernel_driver_error != 0 && kernel_driver_error != LIBUSB_ERROR_NOT_SUPPORTED) {
LOG_ERROR(Input, "libusb_detach_kernel_driver failed with error = {}",
kernel_driver_error);
@@ -345,13 +290,15 @@ bool Adapter::CheckDeviceAccess() {
}
if (kernel_driver_error && kernel_driver_error != LIBUSB_ERROR_NOT_SUPPORTED) {
+ libusb_close(usb_adapter_handle);
usb_adapter_handle = nullptr;
return false;
}
- const int interface_claim_error = libusb_claim_interface(usb_adapter_handle->get(), 0);
+ const int interface_claim_error = libusb_claim_interface(usb_adapter_handle, 0);
if (interface_claim_error) {
LOG_ERROR(Input, "libusb_claim_interface failed with error = {}", interface_claim_error);
+ libusb_close(usb_adapter_handle);
usb_adapter_handle = nullptr;
return false;
}
@@ -385,17 +332,57 @@ bool Adapter::GetGCEndpoint(libusb_device* device) {
// This transfer seems to be responsible for clearing the state of the adapter
// Used to clear the "busy" state of when the device is unexpectedly unplugged
unsigned char clear_payload = 0x13;
- libusb_interrupt_transfer(usb_adapter_handle->get(), output_endpoint, &clear_payload,
+ libusb_interrupt_transfer(usb_adapter_handle, output_endpoint, &clear_payload,
sizeof(clear_payload), nullptr, 16);
return true;
}
+void Adapter::JoinThreads() {
+ restart_scan_thread = false;
+ adapter_input_thread_running = false;
+ adapter_scan_thread_running = false;
+
+ if (adapter_scan_thread.joinable()) {
+ adapter_scan_thread.join();
+ }
+
+ if (adapter_input_thread.joinable()) {
+ adapter_input_thread.join();
+ }
+}
+
+void Adapter::ClearLibusbHandle() {
+ if (usb_adapter_handle) {
+ libusb_release_interface(usb_adapter_handle, 1);
+ libusb_close(usb_adapter_handle);
+ usb_adapter_handle = nullptr;
+ }
+}
+
+void Adapter::ResetDevices() {
+ for (std::size_t i = 0; i < pads.size(); ++i) {
+ ResetDevice(i);
+ }
+}
+
+void Adapter::ResetDevice(std::size_t port) {
+ pads[port].type = ControllerTypes::None;
+ pads[port].enable_vibration = false;
+ pads[port].rumble_amplitude = 0;
+ pads[port].buttons = 0;
+ pads[port].last_button = PadButton::Undefined;
+ pads[port].axis_values.fill(0);
+ pads[port].reset_origin_counter = 0;
+}
+
void Adapter::Reset() {
- adapter_scan_thread = {};
- adapter_input_thread = {};
- usb_adapter_handle = nullptr;
- pads = {};
- libusb_ctx = nullptr;
+ JoinThreads();
+ ClearLibusbHandle();
+ ResetDevices();
+
+ if (libusb_ctx) {
+ libusb_exit(libusb_ctx);
+ }
}
std::vector<Common::ParamPackage> Adapter::GetInputDevices() const {
diff --git a/src/input_common/gcadapter/gc_adapter.h b/src/input_common/gcadapter/gc_adapter.h
index 28dbcbe05..e5de5e94f 100644
--- a/src/input_common/gcadapter/gc_adapter.h
+++ b/src/input_common/gcadapter/gc_adapter.h
@@ -3,14 +3,11 @@
// Refer to the license.txt file included.
#pragma once
-
#include <algorithm>
#include <functional>
#include <mutex>
-#include <stop_token>
#include <thread>
#include <unordered_map>
-
#include "common/common_types.h"
#include "common/threadsafe_queue.h"
#include "input_common/main.h"
@@ -21,9 +18,6 @@ struct libusb_device_handle;
namespace GCAdapter {
-class LibUSBContext;
-class LibUSBDeviceHandle;
-
enum class PadButton {
Undefined = 0x0000,
ButtonLeft = 0x0001,
@@ -69,11 +63,11 @@ struct GCPadStatus {
};
struct GCController {
- ControllerTypes type = ControllerTypes::None;
- bool enable_vibration = false;
- u8 rumble_amplitude = 0;
- u16 buttons = 0;
- PadButton last_button = PadButton::Undefined;
+ ControllerTypes type{};
+ bool enable_vibration{};
+ u8 rumble_amplitude{};
+ u16 buttons{};
+ PadButton last_button{};
std::array<s16, 6> axis_values{};
std::array<u8, 6> axis_origin{};
u8 reset_origin_counter{};
@@ -115,9 +109,9 @@ private:
void UpdateStateAxes(std::size_t port, const AdapterPayload& adapter_payload);
void UpdateVibrations();
- void AdapterInputThread(std::stop_token stop_token);
+ void AdapterInputThread();
- void AdapterScanThread(std::stop_token stop_token);
+ void AdapterScanThread();
bool IsPayloadCorrect(const AdapterPayload& adapter_payload, s32 payload_size);
@@ -125,7 +119,13 @@ private:
void SendVibrations();
/// For use in initialization, querying devices to find the adapter
- bool Setup();
+ void Setup();
+
+ /// Resets status of all GC controller devices to a disconnected state
+ void ResetDevices();
+
+ /// Resets status of device connected to a disconnected state
+ void ResetDevice(std::size_t port);
/// Returns true if we successfully gain access to GC Adapter
bool CheckDeviceAccess();
@@ -137,15 +137,23 @@ private:
/// For shutting down, clear all data, join all threads, release usb
void Reset();
- std::unique_ptr<LibUSBDeviceHandle> usb_adapter_handle;
+ // Join all threads
+ void JoinThreads();
+
+ // Release usb handles
+ void ClearLibusbHandle();
+
+ libusb_device_handle* usb_adapter_handle = nullptr;
std::array<GCController, 4> pads;
Common::SPSCQueue<GCPadStatus> pad_queue;
- std::jthread adapter_input_thread;
- std::jthread adapter_scan_thread;
- bool restart_scan_thread{};
+ std::thread adapter_input_thread;
+ std::thread adapter_scan_thread;
+ bool adapter_input_thread_running;
+ bool adapter_scan_thread_running;
+ bool restart_scan_thread;
- std::unique_ptr<LibUSBContext> libusb_ctx;
+ libusb_context* libusb_ctx;
u8 input_endpoint{0};
u8 output_endpoint{0};