mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-09-20 15:18:59 +00:00
8cb77ac136
namespace sts::ams -> ams::exosphere, ams::. This is to facilitate future use of ams:: namespace code in mesosphere, as we'll want to include ams::util, ams::result, ams::svc...
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
/*
|
|
* Copyright (c) 2018-2019 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/>.
|
|
*/
|
|
|
|
#pragma once
|
|
#include <switch.h>
|
|
#include <stratosphere.hpp>
|
|
|
|
#include "../i2c_api.hpp"
|
|
#include "i2c_driver_types.hpp"
|
|
#include "i2c_bus_accessor.hpp"
|
|
#include "i2c_session.hpp"
|
|
|
|
namespace ams::i2c::driver::impl {
|
|
|
|
class ResourceManager {
|
|
public:
|
|
static constexpr size_t MaxDriverSessions = 40;
|
|
static constexpr size_t PowerBusId = ConvertToIndex(Bus::I2C5);
|
|
static constexpr size_t InvalidSessionId = static_cast<size_t>(-1);
|
|
private:
|
|
os::Mutex initialize_mutex;
|
|
os::Mutex session_open_mutex;
|
|
size_t ref_cnt = 0;
|
|
bool suspended = false;
|
|
bool power_bus_suspended = false;
|
|
Session sessions[MaxDriverSessions];
|
|
BusAccessor bus_accessors[ConvertToIndex(Bus::Count)];
|
|
os::Mutex transaction_mutexes[ConvertToIndex(Bus::Count)];
|
|
public:
|
|
ResourceManager() {
|
|
/* ... */
|
|
}
|
|
private:
|
|
size_t GetFreeSessionId() const;
|
|
public:
|
|
/* N uses a singleton here, we'll oblige. */
|
|
static ResourceManager &GetInstance() {
|
|
static ResourceManager s_instance;
|
|
return s_instance;
|
|
}
|
|
|
|
bool IsInitialized() const {
|
|
return this->ref_cnt > 0;
|
|
}
|
|
|
|
Session& GetSession(size_t id) {
|
|
return this->sessions[id];
|
|
}
|
|
|
|
os::Mutex& GetTransactionMutex(Bus bus) {
|
|
return this->transaction_mutexes[ConvertToIndex(bus)];
|
|
}
|
|
|
|
void Initialize();
|
|
void Finalize();
|
|
|
|
void OpenSession(driver::Session *out_session, Bus bus, u32 slave_address, AddressingMode addressing_mode, SpeedMode speed_mode, u32 max_retries, u64 retry_wait_time);
|
|
void CloseSession(const driver::Session &session);
|
|
void SuspendBuses();
|
|
void ResumeBuses();
|
|
void SuspendPowerBus();
|
|
void ResumePowerBus();
|
|
};
|
|
|
|
}
|