ardupilot/libraries/AP_HAL_QURT/SPIDevice.h

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/*
* 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 <AP_HAL/SPIDevice.h>
#include "AP_HAL_QURT.h"
#include "Semaphores.h"
#include "Scheduler.h"
#include "DeviceBus.h"
namespace QURT
{
class SPIBus : public DeviceBus
{
public:
SPIBus();
int fd = -1;
};
class SPIDevice : public AP_HAL::SPIDevice
{
public:
SPIDevice(const char *name, SPIBus &bus);
virtual ~SPIDevice();
bool set_speed(AP_HAL::Device::Speed speed) override;
bool transfer(const uint8_t *send, uint32_t send_len,
uint8_t *recv, uint32_t recv_len) override;
bool transfer_fullduplex(const uint8_t *send, uint8_t *recv, uint32_t len) override;
AP_HAL::Semaphore *get_semaphore() override;
AP_HAL::Device::PeriodicHandle register_periodic_callback(uint32_t period_usec, AP_HAL::Device::PeriodicCb) override;
bool adjust_periodic_callback(AP_HAL::Device::PeriodicHandle h, uint32_t period_usec) override;
private:
SPIBus &bus;
const char *pname;
void acquire_bus(bool accuire);
};
class SPIDeviceManager : public AP_HAL::SPIDeviceManager
{
public:
friend class SPIDevice;
AP_HAL::OwnPtr<AP_HAL::SPIDevice> get_device(const char *name) override;
};
}