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Atmosphere/libraries/libstratosphere/include/stratosphere/usb/usb_device.hpp

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/*
* Copyright (c) Atmosphère-NX
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*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours.hpp>
#include <stratosphere/os/os_system_event.hpp>
#include <stratosphere/sf/sf_lmem_utility.hpp>
#include <stratosphere/usb/usb_limits.hpp>
#include <stratosphere/usb/usb_device_types.hpp>
#include <stratosphere/usb/ds/usb_i_ds_service.hpp>
namespace ams::usb {
class DsInterface;
class DsEndpoint;
class DsClient {
friend class DsInterface;
friend class DsEndpoint;
private:
/* NOTE: Nintendo uses a UnitHeap here on newer firmware versions. */
/* For now, we'll use an ExpHeap and do it the old way. */
sf::ExpHeapAllocator m_allocator{};
u8 m_heap_buffer[32_KB];
lmem::HeapHandle m_heap_handle{};
sf::SharedPointer<ds::IDsRootSession> m_root_session{};
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sf::SharedPointer<ds::IDsService> m_ds_service{};
bool m_is_initialized{false};
std::atomic<int> m_reference_count{0};
os::SystemEventType m_state_change_event{};
DsInterface *m_interfaces[DsLimitMaxInterfacesPerConfigurationCount]{};
bool m_is_enabled{false};
public:
DsClient() = default;
~DsClient() { /* ... */ }
public:
Result Initialize(ComplexId complex_id);
Result Finalize();
bool IsInitialized();
Result EnableDevice();
Result DisableDevice();
os::SystemEventType *GetStateChangeEvent();
Result GetState(UsbState *out);
Result ClearDeviceData();
Result AddUsbStringDescriptor(u8 *out_index, UsbStringDescriptor *desc);
Result DeleteUsbStringDescriptor(u8 index);
Result SetUsbDeviceDescriptor(UsbDeviceDescriptor *desc, UsbDeviceSpeed speed);
Result SetBinaryObjectStore(u8 *data, int size);
private:
Result AddInterface(DsInterface *intf, sf::SharedPointer<ds::IDsInterface> *out_srv, uint8_t bInterfaceNumber);
Result DeleteInterface(uint8_t bInterfaceNumber);
};
class DsInterface {
friend class DsEndpoint;
private:
DsClient *m_client;
sf::SharedPointer<ds::IDsInterface> m_interface;
bool m_is_initialized;
std::atomic<int> m_reference_count;
os::SystemEventType m_setup_event;
os::SystemEventType m_ctrl_in_completion_event;
os::SystemEventType m_ctrl_out_completion_event;
UrbReport m_report;
u8 m_interface_num;
DsEndpoint *m_endpoints[UsbLimitMaxEndpointsCount];
public:
DsInterface() : m_client(nullptr), m_is_initialized(false), m_reference_count(0) { /* ... */ }
~DsInterface() { /* ... */ }
public:
Result Initialize(DsClient *client, u8 bInterfaceNumber);
Result Finalize();
Result AppendConfigurationData(UsbDeviceSpeed speed, void *data, u32 size);
bool IsInitialized();
os::SystemEventType *GetSetupEvent();
Result GetSetupPacket(UsbCtrlRequest *out);
Result Enable();
Result Disable();
Result CtrlRead(u32 *out_transferred, void *dst, u32 size);
Result CtrlWrite(u32 *out_transferred, void *dst, u32 size);
Result CtrlDone();
Result CtrlStall();
private:
Result AddEndpoint(DsEndpoint *ep, u8 bEndpointAddress, sf::SharedPointer<ds::IDsEndpoint> *out);
Result DeleteEndpoint(u8 bEndpointAddress);
Result CtrlIn(u32 *out_transferred, void *dst, u32 size);
Result CtrlOut(u32 *out_transferred, void *dst, u32 size);
};
class DsEndpoint {
private:
bool m_is_initialized;
bool m_is_new_format;
std::atomic<int> m_reference_count;
DsInterface *m_interface;
sf::SharedPointer<ds::IDsEndpoint> m_endpoint;
u8 m_address;
os::SystemEventType m_completion_event;
os::SystemEventType m_unknown_event;
public:
DsEndpoint() : m_is_initialized(false), m_is_new_format(false), m_reference_count(0) { /* ... */ }
public:
Result Initialize(DsInterface *interface, u8 bEndpointAddress);
Result Finalize();
bool IsInitialized();
Result PostBuffer(u32 *out_transferred, void *buf, u32 size);
Result PostBufferAsync(u32 *out_urb_id, void *buf, u32 size);
os::SystemEventType *GetCompletionEvent();
Result GetUrbReport(UrbReport *out);
Result Cancel();
Result SetZeroLengthTransfer(bool zlt);
};
}