mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-23 20:32:10 +00:00
125 lines
3.7 KiB
C++
125 lines
3.7 KiB
C++
/*
|
|
* 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 <stratosphere.hpp>
|
|
#include "htclow_usb_driver.hpp"
|
|
#include "htclow_usb_impl.hpp"
|
|
|
|
namespace ams::htclow::driver {
|
|
|
|
void UsbDriver::OnUsbAvailabilityChange(UsbAvailability availability, void *param) {
|
|
/* Convert the argument to a driver. */
|
|
UsbDriver *driver = static_cast<UsbDriver *>(param);
|
|
|
|
/* Handle the change. */
|
|
switch (availability) {
|
|
case UsbAvailability_Unavailable:
|
|
CancelUsbSendReceive();
|
|
break;
|
|
case UsbAvailability_Available:
|
|
driver->m_event.Signal();
|
|
break;
|
|
case UsbAvailability_Unknown:
|
|
driver->CancelSendReceive();
|
|
break;
|
|
}
|
|
}
|
|
|
|
Result UsbDriver::Open() {
|
|
/* Clear our event. */
|
|
m_event.Clear();
|
|
|
|
/* Set the availability change callback. */
|
|
SetUsbAvailabilityChangeCallback(OnUsbAvailabilityChange, this);
|
|
|
|
/* Initialize the interface. */
|
|
R_RETURN(InitializeUsbInterface());
|
|
}
|
|
|
|
void UsbDriver::Close() {
|
|
/* Finalize the interface. */
|
|
FinalizeUsbInterface();
|
|
|
|
/* Clear the availability callback. */
|
|
ClearUsbAvailabilityChangeCallback();
|
|
}
|
|
|
|
Result UsbDriver::Connect(os::EventType *event) {
|
|
/* We must not already be connected. */
|
|
AMS_ABORT_UNLESS(!m_connected);
|
|
|
|
/* Perform a wait on our event. */
|
|
const int idx = os::WaitAny(m_event.GetBase(), event);
|
|
R_UNLESS(idx == 0, htclow::ResultCancelled());
|
|
|
|
/* Clear our event. */
|
|
m_event.Clear();
|
|
|
|
/* We're connected. */
|
|
m_connected = true;
|
|
R_SUCCEED();
|
|
}
|
|
|
|
void UsbDriver::Shutdown() {
|
|
/* If we're connected, cancel anything we're doing. */
|
|
if (m_connected) {
|
|
this->CancelSendReceive();
|
|
m_connected = false;
|
|
}
|
|
}
|
|
|
|
Result UsbDriver::Send(const void *src, int src_size) {
|
|
/* Check size. */
|
|
R_UNLESS(src_size >= 0, htclow::ResultInvalidArgument());
|
|
|
|
/* Send until we've sent everything. */
|
|
for (auto transferred = 0; transferred < src_size; /* ... */) {
|
|
int cur;
|
|
R_TRY(SendUsb(std::addressof(cur), reinterpret_cast<const void *>(reinterpret_cast<uintptr_t>(src) + transferred), src_size - transferred));
|
|
|
|
transferred += cur;
|
|
}
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
Result UsbDriver::Receive(void *dst, int dst_size) {
|
|
/* Check size. */
|
|
R_UNLESS(dst_size >= 0, htclow::ResultInvalidArgument());
|
|
|
|
/* Send until we've sent everything. */
|
|
for (auto transferred = 0; transferred < dst_size; /* ... */) {
|
|
int cur;
|
|
R_TRY(ReceiveUsb(std::addressof(cur), reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(dst) + transferred), dst_size - transferred));
|
|
|
|
transferred += cur;
|
|
}
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
void UsbDriver::CancelSendReceive() {
|
|
CancelUsbSendReceive();
|
|
}
|
|
|
|
void UsbDriver::Suspend() {
|
|
this->Close();
|
|
}
|
|
|
|
void UsbDriver::Resume() {
|
|
R_ABORT_UNLESS(this->Open());
|
|
}
|
|
|
|
}
|