src/main/drivers/rx/rx_spi.h

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #pragma once
  22
  23 #include <stdint.h>
  24
  25 #include "common/time.h"
  26
  27 #include "drivers/bus.h"
  28 #include "drivers/exti.h"
  29
  30 #define RX_SPI_MAX_PAYLOAD_SIZE 35
  31
  32 struct rxSpiConfig_s;
  33
  34 extDevice_t *rxSpiGetDevice(void);
  35 void rxSpiDevicePreInit(const struct rxSpiConfig_s *rxSpiConfig);
  36 bool rxSpiDeviceInit(const struct rxSpiConfig_s *rxSpiConfig);
  37 void rxSpiSetNormalSpeedMhz(uint32_t mhz);
  38 void rxSpiNormalSpeed();
  39 void rxSpiStartupSpeed();
  40 void rxSpiDmaEnable(bool enable);
  41 uint8_t rxSpiTransferByte(uint8_t data);
  42 void rxSpiWriteByte(uint8_t data);
  43 void rxSpiWriteCommand(uint8_t command, uint8_t data);
  44 void rxSpiWriteCommandMulti(uint8_t command, const uint8_t *data, uint8_t length);
  45 uint8_t rxSpiReadCommand(uint8_t command, uint8_t commandData);
  46 void rxSpiReadCommandMulti(uint8_t command, uint8_t commandData, uint8_t *retData, uint8_t length);
  47 void rxSpiExtiInit(ioConfig_t rxSpiExtiPinConfig, extiTrigger_t rxSpiExtiPinTrigger);
  48 void rxSpiEnableExti(void);
  49 bool rxSpiExtiConfigured(void);
  50 bool rxSpiGetExtiState(void);
  51 bool rxSpiPollExti(void);
  52 void rxSpiResetExti(void);
  53 timeUs_t rxSpiGetLastExtiTimeUs(void);
  54 void rxSpiTransferCommandMulti(uint8_t *data, uint8_t length);
  55 bool rxSpiIsBusy(void);