a7105.h

#ifndef _IFACE_A7105_H_
#define _IFACE_A7105_H_

// constants for arduino pins
#define RED_LED 7
#define BLUE_LED 8
#define CS_PIN 10 
#define RED_ON() digitalWrite(RED_LED, HIGH);
#define RED_OFF() digitalWrite(RED_LED, LOW);
#define BLUE_ON() digitalWrite(BLUE_LED, HIGH);
#define BLUE_OFF() digitalWrite(BLUE_LED, LOW);
#define CS_HI() digitalWrite(CS_PIN, HIGH);
#define CS_LO() digitalWrite(CS_PIN, LOW);

bool verbose;
//u8 testpacket[16];
u8 receivedpacket[16];
u8 channel;
unsigned long sessionid;
unsigned long txid = 0xdb042679; // transmitter ID
u8 state;
int startTime, waitTime, hubsanWait, finishTime;
  

// strobe commands. These are used to set the transceiver mode
enum A7105_State {
    A7105_SLEEP     = 0x80,
    A7105_IDLE      = 0x90,
    A7105_STANDBY   = 0xA0,
    A7105_PLL       = 0xB0,
    A7105_RX        = 0xC0,
    A7105_TX        = 0xD0,
    A7105_RST_WRPTR = 0xE0,
    A7105_RST_RDPTR = 0xF0,
};

// register addresses
enum {
   A7105_00_MODE         = 0x00,
    A7105_01_MODE_CONTROL = 0x01,
    A7105_02_CALC         = 0x02,
    A7105_03_FIFOI        = 0x03,
    A7105_04_FIFOII       = 0x04,
    A7105_05_FIFO_DATA    = 0x05,
    A7105_06_ID_DATA      = 0x06,
    A7105_07_RC_OSC_I     = 0x07,
    A7105_08_RC_OSC_II    = 0x08,
    A7105_09_RC_OSC_III   = 0x09,
    A7105_0A_CK0_PIN      = 0x0A,
    A7105_0B_GPIO1_PIN1   = 0x0B,
    A7105_0C_GPIO2_PIN_II = 0x0C,
    A7105_0D_CLOCK        = 0x0D,
    A7105_0E_DATA_RATE    = 0x0E,
    A7105_0F_PLL_I        = 0x0F,
    A7105_10_PLL_II       = 0x10,
    A7105_11_PLL_III      = 0x11,
    A7105_12_PLL_IV       = 0x12,
    A7105_13_PLL_V        = 0x13,
    A7105_14_TX_I         = 0x14,
    A7105_15_TX_II        = 0x15,
    A7105_16_DELAY_I      = 0x16,
    A7105_17_DELAY_II     = 0x17,
    A7105_18_RX           = 0x18,
    A7105_19_RX_GAIN_I    = 0x19,
    A7105_1A_RX_GAIN_II   = 0x1A,
    A7105_1B_RX_GAIN_III  = 0x1B,
    A7105_1C_RX_GAIN_IV   = 0x1C,
    A7105_1D_RSSI_THOLD   = 0x1D,
    A7105_1E_ADC          = 0x1E,
    A7105_1F_CODE_I       = 0x1F,
    A7105_20_CODE_II      = 0x20,
    A7105_21_CODE_III     = 0x21,
    A7105_22_IF_CALIB_I   = 0x22,
    A7105_23_IF_CALIB_II  = 0x23,
    A7105_24_VCO_CURCAL   = 0x24,
    A7105_25_VCO_SBCAL_I  = 0x25,
    A7105_26_VCO_SBCAL_II = 0x26,
    A7105_27_BATTERY_DET  = 0x27,
    A7105_28_TX_TEST      = 0x28,
    A7105_29_RX_DEM_TEST_I  = 0x29,
    A7105_2A_RX_DEM_TEST_II = 0x2A,
    A7105_2B_CPC          = 0x2B,
    A7105_2C_XTAL_TEST    = 0x2C,
    A7105_2D_PLL_TEST     = 0x2D,
    A7105_2E_VCO_TEST_I   = 0x2E,
    A7105_2F_VCO_TEST_II  = 0x2F,
    A7105_30_IFAT         = 0x30,
    A7105_31_RSCALE       = 0x31,
    A7105_32_FILTER_TEST  = 0x32,
};
#define A7105_0F_CHANNEL A7105_0F_PLL_I

enum A7105_MASK {
    A7105_MASK_FBCF = 1 << 4,
    A7105_MASK_VBCF = 1 << 3,
};

enum TXRX_State {
    TXRX_OFF,
    TX_EN,
    RX_EN,
};


// Set CS pin mode, initialse and set sensible defaults for SPI, set GIO1 as output on chip
void A7105_Setup();

// Triggers the chip to reset, then prints the contents of the mode register to serial
void A7105_Reset();

// sets the transmitter power on the chip
void A7105_SetPower(int power);

// Transmits the given strobe command. Commands are enumerated in a7105.h and detailed in the documentation
void A7105_Strobe(enum A7105_State);

// Access the current value of the transmitter ID
void A7105_WriteID(u32 id);
void A7105_ReadID();

// Access an arbitrary register, given by addr
void A7105_WriteReg(u8 addr, u8 value);
u8 A7105_ReadReg(u8 addr);

// Transmit or receive data through the FIFO buffer with current settings
void A7105_WriteData(u8 *dpbuffer, u8 len, u8 channel);
void A7105_ReadData(u8 *dpbuffer, u8 len);

// Build a distinctive test packet
//void make_test_packet(u8 testpacket[]);

// Print the provided packet in human-readable format
void printpacket(u8 packet[]);

// Eavesdrop on a hubsan exchange. This must be started prior to the binding exchange
//void eavesdrop(u32 sess_id, u8 sess_channel);

// Shout a test packet on the current channel
//void A7105_shoutchannel();

// Scan list of wireless channels for traffic
void A7105_scanchannels(const u8 channels[]);

// sniff either the current channel or a given channel
void A7105_sniffchannel(u8 _channel);
int A7105_sniffchannel();

#endif