/*
* Copyright (c) 2011, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*/
/**
* \file
* CC2520 driver header file
* \author
* Adam Dunkels <adam@sics.se>
* Joakim Eriksson <joakime@sics.se>
*/
#ifndef CC2520_H_
#define CC2520_H_
#include "contiki.h"
#include "dev/spi.h"
#include "dev/radio.h"
#include "dev/cc2520/cc2520_const.h"
int cc2520_init(void);
#define CC2520_MAX_PACKET_LEN 127
int cc2520_set_channel(int channel);
int cc2520_get_channel(void);
void cc2520_set_pan_addr(unsigned pan,
unsigned addr,
const uint8_t *ieee_addr);
extern signed char cc2520_last_rssi;
extern uint8_t cc2520_last_correlation;
int cc2520_rssi(void);
extern const struct radio_driver cc2520_driver;
/**
* \param power Between 1 and 31.
*/
void cc2520_set_txpower(uint8_t power);
int cc2520_get_txpower(void);
#define CC2520_TXPOWER_MAX 31
#define CC2520_TXPOWER_MIN 0
/**
* Interrupt function, called from the simple-cc2520-arch driver.
*
*/
int cc2520_interrupt(void);
/* XXX hack: these will be made as Chameleon packet attributes */
extern rtimer_clock_t cc2520_time_of_arrival,
cc2520_time_of_departure;
extern int cc2520_authority_level_of_sender;
int cc2520_on(void);
int cc2520_off(void);
void cc2520_set_cca_threshold(int value);
/************************************************************************/
/* Additional SPI Macros for the CC2520 */
/************************************************************************/
/* Send a strobe to the CC2520 */
#define CC2520_STROBE(s) \
do { \
CC2520_SPI_ENABLE(); \
SPI_WRITE(s); \
CC2520_SPI_DISABLE(); \
} while (0)
/* Write to a register in the CC2520 */
/* Note: the SPI_WRITE(0) seems to be needed for getting the */
/* write reg working on the Z1 / MSP430X platform */
#define CC2520_WRITE_REG(adr,data) \
do { \
CC2520_SPI_ENABLE(); \
SPI_WRITE_FAST(CC2520_INS_MEMWR | ((adr>>8)&0xFF)); \
SPI_WRITE_FAST(adr & 0xff); \
SPI_WRITE_FAST((uint8_t) data); \
SPI_WAITFORTx_ENDED(); \
CC2520_SPI_DISABLE(); \
} while(0)
/* Read a register in the CC2520 */
#define CC2520_READ_REG(adr,data) \
do { \
CC2520_SPI_ENABLE(); \
SPI_WRITE((CC2520_INS_MEMRD | ((adr>>8)&0xFF))); \
SPI_WRITE((adr & 0xFF)); \
(void)SPI_RXBUF; \
SPI_READ(data); \
CC2520_SPI_DISABLE(); \
} while(0)
#define CC2520_READ_FIFO_BYTE(data) \
do { \
CC2520_SPI_ENABLE(); \
SPI_WRITE(CC2520_INS_RXBUF); \
(void)SPI_RXBUF; \
SPI_READ(data); \
clock_delay(1); \
CC2520_SPI_DISABLE(); \
} while(0)
#define CC2520_READ_FIFO_BUF(buffer,count) \
do { \
uint8_t i; \
CC2520_SPI_ENABLE(); \
SPI_WRITE(CC2520_INS_RXBUF); \
(void)SPI_RXBUF; \
for(i = 0; i < (count); i++) { \
SPI_READ(((uint8_t *)(buffer))[i]); \
} \
clock_delay(1); \
CC2520_SPI_DISABLE(); \
} while(0)
#define CC2520_WRITE_FIFO_BUF(buffer,count) \
do { \
uint8_t i; \
CC2520_SPI_ENABLE(); \
SPI_WRITE_FAST(CC2520_INS_TXBUF); \
for(i = 0; i < (count); i++) { \
SPI_WRITE_FAST(((uint8_t *)(buffer))[i]); \
SPI_WAITFORTxREADY(); \
} \
SPI_WAITFORTx_ENDED(); \
CC2520_SPI_DISABLE(); \
} while(0)
/* Write to RAM in the CC2520 */
#define CC2520_WRITE_RAM(buffer,adr,count) \
do { \
uint8_t i; \
CC2520_SPI_ENABLE(); \
SPI_WRITE_FAST(CC2520_INS_MEMWR | (((adr)>>8) & 0xFF)); \
SPI_WRITE_FAST(((adr) & 0xFF)); \
for(i = 0; i < (count); i++) { \
SPI_WRITE_FAST(((uint8_t*)(buffer))[i]); \
} \
SPI_WAITFORTx_ENDED(); \
CC2520_SPI_DISABLE(); \
} while(0)
/* Read from RAM in the CC2520 */
#define CC2520_READ_RAM(buffer,adr,count) \
do { \
uint8_t i; \
CC2520_SPI_ENABLE(); \
SPI_WRITE(CC2520_INS_MEMRD | (((adr)>>8) & 0xFF)); \
SPI_WRITE(((adr) & 0xFF)); \
SPI_RXBUF; \
for(i = 0; i < (count); i++) { \
SPI_READ(((uint8_t*)(buffer))[i]); \
} \
CC2520_SPI_DISABLE(); \
} while(0)
/* Read status of the CC2520 */
#define CC2520_GET_STATUS(s) \
do { \
CC2520_SPI_ENABLE(); \
SPI_WRITE(CC2520_INS_SNOP); \
s = SPI_RXBUF; \
CC2520_SPI_DISABLE(); \
} while (0)
#endif /* CC2520_H_ */