crashtest-r0ket/firmware/funk/nrf24l01p.h

175 lines
4.7 KiB
C

#ifndef _NRF24L01P_H
#define _NRF24L01P_H 1
#include <stdint.h>
#define MAX_PKT (32) // space for crc is supplied by the caller
// SPI commands
#define C_R_REGISTER 0x00
#define C_W_REGISTER 0x20
#define C_R_RX_PAYLOAD 0x61
#define C_W_TX_PAYLOAD 0xA0
#define C_FLUSH_TX 0xE1
#define C_FLUSH_RX 0xE2
#define C_REUSE_TX_PL 0xE3
#define C_R_RX_PL_WID 0x60
#define C_W_ACK_PAYLOAD 0xA8
#define C_W_TX_PAYLOAD_NOCACK 0xB0
#define C_NOP 0xFF
// Registers
#define R_CONFIG 0x00
#define R_EN_AA 0x01
#define R_EN_RXADDR 0x02
#define R_SETUP_AW 0x03
#define R_SETUP_RETR 0x04
#define R_RF_CH 0x05
#define R_RF_SETUP 0x06
#define R_STATUS 0x07
#define R_OBSERVE_TX 0x08
#define R_RPD 0x09
#define R_RX_ADDR_P0 0x0A
#define R_RX_ADDR_P0_LEN 5
#define R_RX_ADDR_P1 0x0B
#define R_RX_ADDR_P1_LEN 5
#define R_RX_ADDR_P2 0x0C
#define R_RX_ADDR_P2_LEN 1
#define R_RX_ADDR_P3 0x0D
#define R_RX_ADDR_P3_LEN 1
#define R_RX_ADDR_P4 0x0E
#define R_RX_ADDR_P4_LEN 1
#define R_RX_ADDR_P5 0x0F
#define R_RX_ADDR_P5_LEN 1
#define R_TX_ADDR 0x10
#define R_TX_ADDR_LEN 5
#define R_RX_PW_P0 0x11
#define R_RX_PW_P1 0x12
#define R_RX_PW_P2 0x13
#define R_RX_PW_P3 0x14
#define R_RX_PW_P4 0x15
#define R_RX_PW_P5 0x16
#define R_FIFO_STATUS 0x17
#define R_DYNPD 0x1c
// Register Flags
//CONFIG register definitions
#define R_CONFIG_RESERVED 0x80
#define R_CONFIG_MASK_RX_DR 0x40
#define R_CONFIG_MASK_TX_DS 0x20
#define R_CONFIG_MASK_MAX_RT 0x10
#define R_CONFIG_EN_CRC 0x08
#define R_CONFIG_CRCO 0x04
#define R_CONFIG_PWR_UP 0x02
#define R_CONFIG_PRIM_RX 0x01
//EN_AA register definitions
#define R_EN_AA_ENAA_P5 0x20
#define R_EN_AA_ENAA_P4 0x10
#define R_EN_AA_ENAA_P3 0x08
#define R_EN_AA_ENAA_P2 0x04
#define R_EN_AA_ENAA_P1 0x02
#define R_EN_AA_ENAA_P0 0x01
#define R_EN_AA_ENAA_NONE 0x00
//EN_RXADDR register definitions
#define R_EN_RXADDR_ERX_P5 0x20
#define R_EN_RXADDR_ERX_P4 0x10
#define R_EN_RXADDR_ERX_P3 0x08
#define R_EN_RXADDR_ERX_P2 0x04
#define R_EN_RXADDR_ERX_P1 0x02
#define R_EN_RXADDR_ERX_P0 0x01
#define R_EN_RXADDR_ERX_NONE 0x00
// RF_CH register definitions
#define R_RF_CH_BITS 0x7f
//RF_SETUP register definitions
#define R_RF_CONT_WAVE 0x80
#define R_RF_SETUP_RF_DR_LOW 0x20
#define R_RF_SETUP_PLL_LOCK 0x10
#define R_RF_SETUP_RF_DR_HIGH 0x08
#define R_RF_SETUP_RF_PWR_0 0x00
#define R_RF_SETUP_RF_PWR_1 0x02
#define R_RF_SETUP_RF_PWR_2 0x04
#define R_RF_SETUP_RF_PWR_3 0x06
#define R_RF_SETUP_DR_1M 0x00
#define R_RF_SETUP_DR_2M 0x08
#define R_RF_SETUP_DR_250K 0x20
//SETUP_AW register definitions
#define R_SETUP_AW_3 0x01
#define R_SETUP_AW_4 0x02
#define R_SETUP_AW_5 0x03
//STATUS register definitions
#define R_STATUS_RX_DR 0x40
#define R_STATUS_TX_DS 0x20
#define R_STATUS_MAX_RT 0x10
#define R_STATUS_RX_P_NO 0x0E
#define R_STATUS_GET_RX_P_NO(x) ((x&R_STATUS_RX_P_NO)>>1)
#define R_STATUS_RX_FIFO_EMPTY 0x0E
#define R_STATUS_TX_FULL 0x01
/* config structure */
struct NRF_CFG {
uint8_t channel;
uint8_t txmac[5];
uint8_t mac0[5];
uint8_t mac1[5];
uint8_t mac2345[4];
uint8_t nrmacs;
uint8_t maclen[5];
};
typedef struct NRF_CFG * nrfconfig;
/* exported functions */
#define nrf_rcv_pkt_time(maxtime, maxsize, pkt) \
nrf_rcv_pkt_time_encr(maxtime, maxsize, pkt, NULL)
int nrf_rcv_pkt_time_encr(int maxtime, int maxsize, uint8_t * pkt, uint32_t const k[4]);
#define nrf_snd_pkt_crc(size, pkt) \
nrf_snd_pkt_crc_encr(size, pkt, NULL)
char nrf_snd_pkt_crc_encr(int size, uint8_t * pkt, uint32_t const k[4]);
void nrf_init() ;
void nrf_off() ;
void nrf_cmd(uint8_t cmd);
uint8_t nrf_cmd_status(uint8_t cmd);
void nrf_cmd_rw_long(uint8_t* data, int len);
void nrf_read_long(const uint8_t reg, int len, uint8_t* data);
void nrf_write_reg(const uint8_t reg, const uint8_t val);
uint8_t nrf_read_reg(const uint8_t reg);
void nrf_write_long(const uint8_t cmd, int len, const uint8_t* data);
void nrf_set_rx_mac(int pipe, int rxlen, int maclen, const uint8_t * mac);
void nrf_set_tx_mac(int maclen, const uint8_t * mac);
void nrf_disable_pipe(int pipe);
void nrf_set_channel(int channel);
void nrf_config_set(nrfconfig config);
void nrf_config_get(nrfconfig config);
void nrf_set_strength(unsigned char strength);
// new receive IF
void nrf_rcv_pkt_start(void);
int nrf_rcv_pkt_poll(int maxsize, uint8_t * pkt);
int nrf_rcv_pkt_poll_dec(int maxsize, uint8_t * pkt, uint32_t const key[4]);
// more utility.
void nrf_rcv_pkt_end(void);
void nrf_check_reset(void);
extern uint8_t _nrfresets;
/* END */
#endif /* _NRF24L01P_H */