mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-23 21:01:13 +00:00
91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 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 "impl/i2c_driver_core.hpp"
|
|
|
|
namespace ams::i2c::driver {
|
|
|
|
namespace {
|
|
|
|
constexpr inline int DefaultRetryCount = 3;
|
|
constexpr inline TimeSpan DefaultRetryInterval = TimeSpan::FromMilliSeconds(5);
|
|
|
|
Result OpenSessionImpl(I2cSession *out, I2cDeviceProperty *device) {
|
|
/* Construct the session. */
|
|
auto *session = new (std::addressof(impl::GetI2cSessionImpl(*out))) impl::I2cSessionImpl(DefaultRetryCount, DefaultRetryInterval);
|
|
auto session_guard = SCOPE_GUARD { session->~I2cSessionImpl(); };
|
|
|
|
/* Open the session. */
|
|
R_TRY(session->Open(device, ddsf::AccessMode_ReadWrite));
|
|
|
|
/* We succeeded. */
|
|
session_guard.Cancel();
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|
|
|
|
Result OpenSession(I2cSession *out, DeviceCode device_code) {
|
|
AMS_ASSERT(out != nullptr);
|
|
|
|
/* Find the device. */
|
|
I2cDeviceProperty *device = nullptr;
|
|
R_TRY(impl::FindDevice(std::addressof(device), device_code));
|
|
AMS_ASSERT(device != nullptr);
|
|
|
|
/* Open the session. */
|
|
R_TRY(OpenSessionImpl(out, device));
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
void CloseSession(I2cSession &session) {
|
|
impl::GetOpenI2cSessionImpl(session).~I2cSessionImpl();
|
|
}
|
|
|
|
Result Send(I2cSession &session, const void *src, size_t src_size, TransactionOption option) {
|
|
AMS_ASSERT(src != nullptr);
|
|
AMS_ABORT_UNLESS(src_size > 0);
|
|
|
|
return impl::GetOpenI2cSessionImpl(session).Send(src, src_size, option);
|
|
}
|
|
|
|
Result Receive(void *dst, size_t dst_size, I2cSession &session, TransactionOption option) {
|
|
AMS_ASSERT(dst != nullptr);
|
|
AMS_ABORT_UNLESS(dst_size > 0);
|
|
|
|
return impl::GetOpenI2cSessionImpl(session).Receive(dst, dst_size, option);
|
|
}
|
|
|
|
Result ExecuteCommandList(void *dst, size_t dst_size, I2cSession &session, const void *src, size_t src_size) {
|
|
AMS_ASSERT(src != nullptr);
|
|
AMS_ASSERT(dst != nullptr);
|
|
|
|
AMS_ABORT_UNLESS(src_size > 0);
|
|
AMS_ABORT_UNLESS(dst_size > 0);
|
|
|
|
return impl::GetOpenI2cSessionImpl(session).ExecuteCommandList(dst, dst_size, src, src_size);
|
|
}
|
|
|
|
Result SetRetryPolicy(I2cSession &session, int max_retry_count, int retry_interval_us) {
|
|
AMS_ASSERT(max_retry_count > 0);
|
|
AMS_ASSERT(retry_interval_us > 0);
|
|
|
|
return impl::GetOpenI2cSessionImpl(session).SetRetryPolicy(max_retry_count, retry_interval_us);
|
|
}
|
|
|
|
}
|