radio.h

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/*! @file radio.h
 * @brief This file is contains the public radio interface functions.
 *
 * @b COPYRIGHT
 * @n Silicon Laboratories Confidential
 * @n Copyright 2012 Silicon Laboratories, Inc.
 * @n http://www.silabs.com
 */

#ifndef RADIO_H_
#define RADIO_H_

#include <dev/gpio.h>
#include <dev/spi.h>
/*****************************************************************************
 *  Global Macros & Definitions
 *****************************************************************************/
/*! Maximal packet length definition (FIFO size) */
#define RADIO_MAX_PACKET_LENGTH     64u

/*****************************************************************************
 *  Global Typedefs & Enums
 *****************************************************************************/
typedef struct
{
    const uint8_t *Radio_ConfigurationArray;

    uint8_t   Radio_ChannelNumber;
    uint8_t   Radio_PacketLength;
    uint8_t   Radio_State_After_Power_Up;

    uint16_t  Radio_Delay_Cnt_After_Reset;

    uint8_t   Radio_CustomPayload[RADIO_MAX_PACKET_LENGTH];
} tRadioConfiguration;

typedef struct si4455_ph_int_t {
  union {
    uint8_t Raw;
    struct {
      uint8_t RxFifoAlmostFull : 1;
      uint8_t TxFifoAlmostEmpty : 1;
      uint8_t Reserved1 : 1;
      uint8_t Crc32Error : 1;
      uint8_t PacketRx : 1;
      uint8_t PacketSent : 1;
      uint8_t Reserved2 : 2;
    };
  };
} si4455_ph_int_t;

typedef struct si4455_modem_int_t {
  union {
    uint8_t Raw;
    struct {
      uint8_t SyncDetect : 1;
      uint8_t PreambleDetect : 1;
      uint8_t InvalidPreamble : 1;
      uint8_t Rssi : 1;
      uint8_t RssiJump : 1;
      uint8_t InvalidSync : 1;
      uint8_t PostambleDetect : 1;
      uint8_t Reserved1 : 1;
    };
  };
} si4455_modem_int_t;

typedef struct si4455_chip_int_t {
  union {
    uint8_t Raw;
    struct {
      uint8_t Reserved1 : 2;
      uint8_t ChipReady : 1;
      uint8_t CmdErr : 1;
      uint8_t StateChange : 1;
      uint8_t FifoUnderflowOverflowError : 1;
      uint8_t Cal : 1;
      uint8_t Reserved2 : 1;
    };
  };
} si4455_chip_int_t;

struct si4455_state_t
{
  si4455_ph_int_t intPh;
  si4455_modem_int_t intModem;
  si4455_chip_int_t intChip;
  bool ctsWentHigh;
};

struct si4455_t
{
  const struct spi_t *Spi;
  const struct spi_cs_t SpiCs;
  uint32_t SpiBaudrate;
  struct si4455_state_t *State;
  const uint8_t *Config;
  uint8_t SdnPin;
  uint8_t IrqPin;
};

/*****************************************************************************
 *  Global Variable Declarations
 *****************************************************************************/

/*****************************************************************************
 *  Global Function Declarations
 *****************************************************************************/
void  vRadio_Init(const struct si4455_t *radio);
bool gRadio_CheckTransmitted(const struct si4455_t *radio);
void  vRadio_StartTx(const struct si4455_t *radio, uint8_t channel, uint8_t *data, uint8_t length);

#endif /* RADIO_H_ */