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LibrePilot/flight/pios/inc/pios_rfm22b.h

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/**
******************************************************************************
* @addtogroup PIOS PIOS Core hardware abstraction layer
* @{
* @addtogroup PIOS_RFM22B Radio Functions
* @brief PIOS interface for RFM22B Radio
* @{
*
* @file pios_rfm22b.h
* @author The LibrePilot Project, http://www.librepilot.org Copyright (C) 2016.
* The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
* @brief RFM22B functions header.
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* 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
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* (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
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* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PIOS_RFM22B_H
#define PIOS_RFM22B_H
#include <uavobjectmanager.h>
#include <oplinksettings.h>
/* Constant definitions */
enum gpio_direction { GPIO0_TX_GPIO1_RX, GPIO0_RX_GPIO1_TX };
#define RFM22B_PPM_NUM_CHANNELS 8
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/* Global Types */
struct pios_rfm22b_cfg {
const struct pios_spi_cfg *spi_cfg; /* Pointer to SPI interface configuration */
const struct pios_exti_cfg *exti_cfg; /* Pointer to the EXTI configuration */
uint8_t RFXtalCap;
uint8_t slave_num;
enum gpio_direction gpio_direction;
};
typedef void (*PPMReceivedCallback)(uint32_t context, const int16_t *channels);
enum rfm22b_tx_power {
RFM22_tx_pwr_txpow_0 = 0x00, // +1dBm .. 1.25mW
RFM22_tx_pwr_txpow_1 = 0x01, // +2dBm .. 1.6mW
RFM22_tx_pwr_txpow_2 = 0x02, // +5dBm .. 3.16mW
RFM22_tx_pwr_txpow_3 = 0x03, // +8dBm .. 6.3mW
RFM22_tx_pwr_txpow_4 = 0x04, // +11dBm .. 12.6mW
RFM22_tx_pwr_txpow_5 = 0x05, // +14dBm .. 25mW
RFM22_tx_pwr_txpow_6 = 0x06, // +17dBm .. 50mW
RFM22_tx_pwr_txpow_7 = 0x07 // +20dBm .. 100mW
};
enum rfm22b_datarate {
RFM22_datarate_9600 = 0,
RFM22_datarate_19200 = 1,
RFM22_datarate_32000 = 2,
RFM22_datarate_57600 = 3,
RFM22_datarate_64000 = 4,
RFM22_datarate_100000 = 5,
RFM22_datarate_128000 = 6,
RFM22_datarate_192000 = 7,
RFM22_datarate_256000 = 8,
};
typedef enum {
PIOS_RFM22B_INT_FAILURE,
PIOS_RFM22B_INT_SUCCESS,
PIOS_RFM22B_TX_COMPLETE,
PIOS_RFM22B_RX_COMPLETE
} pios_rfm22b_int_result;
struct rfm22b_stats {
uint16_t packets_per_sec;
uint16_t tx_byte_count;
uint16_t rx_byte_count;
uint16_t tx_seq;
uint16_t rx_seq;
uint8_t rx_good;
uint8_t rx_corrected;
uint8_t rx_error;
uint8_t rx_missed;
uint8_t rx_failure;
uint8_t tx_dropped;
uint8_t tx_failure;
uint8_t resets;
uint8_t timeouts;
uint8_t link_quality;
int8_t rssi;
int32_t afc_correction;
uint8_t link_state;
};
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/* Public Functions */
extern int32_t PIOS_RFM22B_Init(uint32_t *rfb22b_id, uint32_t spi_id, uint32_t slave_num, const struct pios_rfm22b_cfg *cfg, OPLinkSettingsRFBandOptions band);
extern void PIOS_RFM22B_Reinit(uint32_t rfb22b_id);
extern void PIOS_RFM22B_SetTxPower(uint32_t rfm22b_id, enum rfm22b_tx_power tx_pwr);
extern void PIOS_RFM22B_SetChannelConfig(uint32_t rfm22b_id, enum rfm22b_datarate datarate, uint8_t min_chan, uint8_t max_chan, bool coordinator, bool ppm_mode, bool ppm_only);
extern void PIOS_RFM22B_SetXtalCap(uint32_t rfm22b_id, uint8_t xtal_cap);
extern void PIOS_RFM22B_SetCoordinatorID(uint32_t rfm22b_id, uint32_t coord_id);
extern void PIOS_RFM22B_SetDeviceID(uint32_t rfm22b_id, uint32_t device_id);
extern uint32_t PIOS_RFM22B_DeviceID(uint32_t rfb22b_id);
extern void PIOS_RFM22B_GetStats(uint32_t rfm22b_id, struct rfm22b_stats *stats);
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extern uint8_t PIOS_RFM22B_GetPairStats(uint32_t rfm22b_id, uint32_t *device_ids, int8_t *RSSIs, uint8_t max_pairs);
extern bool PIOS_RFM22B_InRxWait(uint32_t rfb22b_id);
extern bool PIOS_RFM22B_LinkStatus(uint32_t rfm22b_id);
extern bool PIOS_RFM22B_ReceivePacket(uint32_t rfm22b_id, uint8_t *p);
extern bool PIOS_RFM22B_TransmitPacket(uint32_t rfm22b_id, uint8_t *p, uint8_t len);
extern pios_rfm22b_int_result PIOS_RFM22B_ProcessTx(uint32_t rfm22b_id);
extern pios_rfm22b_int_result PIOS_RFM22B_ProcessRx(uint32_t rfm22b_id);
extern void PIOS_RFM22B_SetPPMCallback(uint32_t rfm22b_id, PPMReceivedCallback cb, uint32_t cb_context);
extern void PIOS_RFM22B_PPMSet(uint32_t rfm22b_id, int16_t *channels, uint8_t nchan);
extern void PIOS_RFM22B_PPMGet(uint32_t rfm22b_id, int16_t *channels, uint8_t nchan);
/* Global Variables */
extern const struct pios_com_driver pios_rfm22b_com_driver;
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#endif /* PIOS_RFM22B_H */
/**
* @}
* @}
*/