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at86rf212.h
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at86rf212.h
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/*
* at86rf212 ISM Band Radio IC driver
*
* Copyright 2016 Ryan Kurte
*/
#ifndef AT86RF212_H
#define AT86RF212_H
#include <stdint.h>
// AT86RF212 internal type definitions
#include "at86rf212_defs.h"
#ifdef __cplusplus
extern "C" {
#endif
// Result enumeration, returned by all methods
enum at86rf212_result_e {
AT86RF212_RES_OK = 0, //!< Indicates success
AT86RF212_RES_DONE = 1, //!< Indicates completion
AT86RF212_DRIVER_INVALID = -1, //!< Invalid driver object
AT86RF212_ERROR_DRIVER = -2, //!< Driver returned error (TODO: allow reporting of driver error code)
AT86RF212_ERROR_COMMS = -3, //!< Communication error (SPI failure)
AT86RF212_ERROR_LEN = -4, //!< Length error (mismatch or length exceeds allowable)
AT86RF212_ERROR_RETRIES = -5, //!< Command failed after AT86RF212_MAX_RETRIES
AT86RF212_ERROR_PLL = -6, //!< PLL locking error
AT86RF212_ERROR_DVDD = -7, //!< Digital voltage error
AT86RF212_ERROR_AVDD = -8 //!< Analogue voltage error
};
// SPI interaction function for dependency injection
typedef int (*spi_transfer_f)(void* context, int len, uint8_t *data_out, uint8_t* data_in);
typedef int (*gpio_set_f)(void* context, uint8_t val);
typedef int (*gpio_get_f)(void* context, uint8_t *val);
// Driver object for passing in to AT86RF212 object
struct at86rf212_driver_s {
spi_transfer_f spi_transfer; //!< SPI transfer function
gpio_set_f set_reset; //!< Reset pin control
gpio_set_f set_slp_tr; //!< Sleep and transmit pin control
gpio_get_f get_irq; //!< Get IRQ pin value
gpio_get_f get_dig1; //!< Get DIG1 pin value
gpio_get_f get_dig2; //!< Get DIG2 pin value
};
/**** Initialization ****/
// Create an at86rf212 device
// Note that the device and driver objects must continue to exist outside this scope.
int at86rf212_init(struct at86rf212_s *device, struct at86rf212_driver_s *driver, void* driver_ctx);
// Close an at86rf212 device
int at86rf212_close(struct at86rf212_s *device);
// State functions
int at86rf212_set_state(struct at86rf212_s *device, uint8_t state);
int at86rf212_set_state_blocking(struct at86rf212_s *device, uint8_t state);
int at86rf212_get_state(struct at86rf212_s *device, uint8_t *state);
// Channel functions
int at86rf212_set_channel(struct at86rf212_s *device, uint8_t channel);
int at86rf212_get_channel(struct at86rf212_s *device, uint8_t *channel);
int at86rf212_set_power_raw(struct at86rf212_s *device, uint8_t power);
// Address and filtering functions
int at86rf212_set_short_address(struct at86rf212_s *device, uint16_t address);
int at86rf212_set_pan_id(struct at86rf212_s *device, uint16_t pan_id);
// IRQ functions
int at86rf212_set_irq_mask(struct at86rf212_s *device, uint8_t mask);
int at86rf212_get_irq_status(struct at86rf212_s *device, uint8_t *status);
// Transmit functions
// Start packet transmission
int at86rf212_start_tx(struct at86rf212_s *device, uint8_t length, uint8_t* data);
// Check for transmission complete
// Returns at86rf212_result_e, values: AT86RF212_RES_DONE when complete, AT86RF212_RES_OK while transmitting
int at86rf212_check_tx(struct at86rf212_s *device);
// Receive functions
// Enter receive mode
int at86rf212_start_rx(struct at86rf212_s *device);
// Check for packet receipt
// Returns at86rf212_result_e, values: AT86RF212_RES_DONE when packet has been received, AT86RF212_RES_OK otherwise
int at86rf212_check_rx(struct at86rf212_s *device);
// Fetch a received packet from the radio
int at86rf212_get_rx(struct at86rf212_s *device, uint8_t* length, uint8_t* data);
// Register functions
// Read a value from a device register
int at86rf212_read_reg(struct at86rf212_s *device, uint8_t reg, uint8_t* val);
// Write a value to a device register
int at86rf212_write_reg(struct at86rf212_s *device, uint8_t reg, uint8_t val);
// Update a particular masked value in a device register
int at86rf212_update_reg(struct at86rf212_s *device, uint8_t reg, uint8_t mask, uint8_t val);
#ifdef __cplusplus
}
#endif
#endif