ardupilot/libraries/SITL/SIM_SPI.h

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2021-07-12 22:37:14 -03:00
/*
This program 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 program 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/>.
*/
/*
Simulated spi buses and devices
*/
#pragma once
#include <AP_Param/AP_Param.h>
#include "stdint.h"
namespace SITL {
class SPI {
public:
SPI() {}
void init();
// update spi state
void update(const class Aircraft &aircraft);
int ioctl(uint8_t bus, uint8_t cs_pin, uint8_t ioctl_type, void *data);
// the following must be identical to AP_HAL_SITL/SPIDevice.h
struct spi_ioc_transfer {
uint64_t tx_buf;
uint64_t rx_buf;
uint32_t len;
// uint32_t speed_hz;
// uint16_t delay_usecs;
// uint8_t bits_per_word;
// uint8_t cs_change;
};
#define SPI_TRANSACTION_1LONG 17
#define SPI_TRANSACTION_2LONG 18
// end "the following"
private:
int ioctl_transaction(uint8_t bus, uint8_t cs_pin, uint8_t count, spi_ioc_transfer *data);
};
}