ardupilot/libraries/AP_HAL_QURT/DeviceBus.h

56 lines
1.5 KiB
C++

/*
* This file is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This file is distributed in the hope that 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 <inttypes.h>
#include <AP_HAL/HAL.h>
#include "Semaphores.h"
#include "AP_HAL_QURT.h"
#include "Scheduler.h"
#define HAL_QURT_DEVICE_STACK_SIZE 8192
namespace QURT
{
class DeviceBus
{
public:
DeviceBus(AP_HAL::Scheduler::priority_base _thread_priority);
struct DeviceBus *next;
HAL_Semaphore semaphore;
AP_HAL::Device::PeriodicHandle register_periodic_callback(uint32_t period_usec, AP_HAL::Device::PeriodicCb, AP_HAL::Device *hal_device);
bool adjust_timer(AP_HAL::Device::PeriodicHandle h, uint32_t period_usec);
void bus_thread(void);
private:
struct callback_info {
struct callback_info *next;
AP_HAL::Device::PeriodicCb cb;
uint32_t period_usec;
uint64_t next_usec;
} *callbacks;
AP_HAL::Scheduler::priority_base thread_priority;
bool thread_started;
AP_HAL::Device *hal_device;
};
}