Atmosphere/troposphere/haze/source/async_usb_server.cpp

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troposphere: add haze MTP server (#2095) * troposphere: add haze MTP server * haze: adjust banner, new lines between class sections, single-statement if * haze: remove additional newlines between sections * haze: avoid use of reference out parameter * haze: console_main_loop: style * haze: event_reactor, file_system_proxy, ptp: style * haze: ptp_data_builder, ptp_object_database, ptp_object_heap, results, usb_session: style * haze: event_reactor, ptp_data_parser, async_usb_server, ptp_object_database, ptp_object_heap: style * haze: ptp_responder: style * haze: usb_session: style * haze: use svc defs from vapours * haze: misc comments * haze: fix pointer overflow check * haze: fix copy paste error * haze: use alignment, invalidate cached use values in console * haze: fix stray hex constant * haze: misc style * haze: fixes for windows * haze: add GetObjectPropsSupported, GetObjectPropDesc, GetObjectPropValue * haze: add SetObjectPropValue * haze: improve object database API * haze: improve WriteVariableLengthData readability * haze: fix directory renames on windows * haze: ptp_object_database: fix collation * haze: event_reactor: fix size validation * haze: ptp_responder: improve documentation * haze: ptp_responder: avoid unnecessary fs interaction in GetObjectPropValue * haze: ptp_responder: fix object deletion on windows * haze: tear down sessions on suspension * haze: prefer more specific data types * haze: misc * haze: fix usb 3.0 support * haze: improve host-to-device file transfer performance * haze: report device serial * haze: move static_assert to requires, fix alignment
2023-04-17 21:08:05 +00:00
/*
* Copyright (c) Atmosphère-NX
*
* 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/>.
*/
#include <haze.hpp>
namespace haze {
namespace {
constinit UsbSession g_usb_session;
}
Result AsyncUsbServer::Initialize(const UsbCommsInterfaceInfo *interface_info, u16 id_vendor, u16 id_product, EventReactor *reactor) {
m_reactor = reactor;
/* Set up a new USB session. */
R_TRY(g_usb_session.Initialize(interface_info, id_vendor, id_product));
R_SUCCEED();
}
void AsyncUsbServer::Finalize() {
g_usb_session.Finalize();
}
Result AsyncUsbServer::TransferPacketImpl(bool read, void *page, u32 size, u32 *out_size_transferred) const {
u32 urb_id;
s32 waiter_idx;
/* If we're not configured yet, wait to become configured first. */
if (!g_usb_session.GetConfigured()) {
R_TRY(m_reactor->WaitFor(std::addressof(waiter_idx), waiterForEvent(usbDsGetStateChangeEvent())));
R_TRY(eventClear(usbDsGetStateChangeEvent()));
R_THROW(haze::ResultNotConfigured());
}
/* Select the appropriate endpoint and begin a transfer. */
UsbSessionEndpoint ep = read ? UsbSessionEndpoint_Read : UsbSessionEndpoint_Write;
R_TRY(g_usb_session.TransferAsync(ep, page, size, std::addressof(urb_id)));
/* Try to wait for the event. */
R_TRY(m_reactor->WaitFor(std::addressof(waiter_idx), waiterForEvent(g_usb_session.GetCompletionEvent(ep))));
/* Return what we transferred. */
R_RETURN(g_usb_session.GetTransferResult(ep, urb_id, out_size_transferred));
}
}