mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-24 12:52:07 +00:00
72 lines
2.9 KiB
C++
72 lines
2.9 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 "boot_i2c_utils.hpp"
|
|
|
|
namespace ams::boot {
|
|
|
|
namespace {
|
|
|
|
template<typename F>
|
|
constexpr Result RetryUntilSuccess(F f) {
|
|
constexpr auto Timeout = TimeSpan::FromSeconds(10);
|
|
constexpr auto RetryInterval = TimeSpan::FromMilliSeconds(20);
|
|
|
|
TimeSpan cur_time = TimeSpan(0);
|
|
while (true) {
|
|
const auto retry_result = f();
|
|
R_SUCCEED_IF(R_SUCCEEDED(retry_result));
|
|
|
|
cur_time += RetryInterval;
|
|
R_UNLESS(cur_time < Timeout, retry_result);
|
|
|
|
os::SleepThread(RetryInterval);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
Result ReadI2cRegister(i2c::driver::I2cSession &session, u8 *dst, size_t dst_size, const u8 *cmd, size_t cmd_size) {
|
|
AMS_ABORT_UNLESS(dst != nullptr && dst_size > 0);
|
|
AMS_ABORT_UNLESS(cmd != nullptr && cmd_size > 0);
|
|
|
|
u8 cmd_list[i2c::CommandListLengthMax];
|
|
i2c::CommandListFormatter formatter(cmd_list, sizeof(cmd_list));
|
|
|
|
R_ABORT_UNLESS(formatter.EnqueueSendCommand(i2c::TransactionOption_StartCondition, cmd, cmd_size));
|
|
R_ABORT_UNLESS(formatter.EnqueueReceiveCommand(static_cast<i2c::TransactionOption>(i2c::TransactionOption_StartCondition | i2c::TransactionOption_StopCondition), dst_size));
|
|
|
|
return RetryUntilSuccess([&]() { return i2c::driver::ExecuteCommandList(dst, dst_size, session, cmd_list, formatter.GetCurrentLength()); });
|
|
}
|
|
|
|
Result WriteI2cRegister(i2c::driver::I2cSession &session, const u8 *src, size_t src_size, const u8 *cmd, size_t cmd_size) {
|
|
AMS_ABORT_UNLESS(src != nullptr && src_size > 0);
|
|
AMS_ABORT_UNLESS(cmd != nullptr && cmd_size > 0);
|
|
|
|
u8 cmd_list[0x20];
|
|
|
|
/* N doesn't use a CommandListFormatter here... */
|
|
std::memcpy(cmd_list + 0, cmd, cmd_size);
|
|
std::memcpy(cmd_list + cmd_size, src, src_size);
|
|
|
|
return RetryUntilSuccess([&]() { return i2c::driver::Send(session, cmd_list, src_size + cmd_size, static_cast<i2c::TransactionOption>(i2c::TransactionOption_StartCondition | i2c::TransactionOption_StopCondition)); });
|
|
}
|
|
|
|
Result WriteI2cRegister(i2c::driver::I2cSession &session, const u8 address, const u8 value) {
|
|
return WriteI2cRegister(session, std::addressof(value), sizeof(value), &address, sizeof(address));
|
|
}
|
|
|
|
}
|