mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-11-03 22:06:22 +00:00
204 lines
8.7 KiB
C
204 lines
8.7 KiB
C
/*
|
|
* Copyright (c) 2007, 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
|
|
* CC2420 driver header file
|
|
* \author
|
|
* Adam Dunkels <adam@sics.se>
|
|
* Joakim Eriksson <joakime@sics.se>
|
|
*/
|
|
|
|
#ifndef CC2420_H_
|
|
#define CC2420_H_
|
|
|
|
#include "contiki.h"
|
|
#include "dev/spi.h"
|
|
#include "dev/radio.h"
|
|
#include "dev/cc2420_const.h"
|
|
|
|
int cc2420_init(void);
|
|
|
|
#define CC2420_MAX_PACKET_LEN 127
|
|
|
|
int cc2420_set_channel(int channel);
|
|
int cc2420_get_channel(void);
|
|
|
|
void cc2420_set_pan_addr(unsigned pan,
|
|
unsigned addr,
|
|
const uint8_t *ieee_addr);
|
|
|
|
extern signed char cc2420_last_rssi;
|
|
extern uint8_t cc2420_last_correlation;
|
|
|
|
int cc2420_rssi(void);
|
|
|
|
extern const struct radio_driver cc2420_driver;
|
|
|
|
/**
|
|
* \param power Between 1 and 31.
|
|
*/
|
|
void cc2420_set_txpower(uint8_t power);
|
|
int cc2420_get_txpower(void);
|
|
#define CC2420_TXPOWER_MAX 31
|
|
#define CC2420_TXPOWER_MIN 0
|
|
|
|
/**
|
|
* Interrupt function, called from the simple-cc2420-arch driver.
|
|
*
|
|
*/
|
|
int cc2420_interrupt(void);
|
|
|
|
/* XXX hack: these will be made as Chameleon packet attributes */
|
|
extern rtimer_clock_t cc2420_time_of_arrival,
|
|
cc2420_time_of_departure;
|
|
extern int cc2420_authority_level_of_sender;
|
|
|
|
int cc2420_on(void);
|
|
int cc2420_off(void);
|
|
|
|
void cc2420_set_cca_threshold(int value);
|
|
|
|
/************************************************************************/
|
|
/* Additional SPI Macros for the CC2420 */
|
|
/************************************************************************/
|
|
/* Send a strobe to the CC2420 */
|
|
#define CC2420_STROBE(s) \
|
|
do { \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE(s); \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while (0)
|
|
|
|
/* Write to a register in the CC2420 */
|
|
/* Note: the SPI_WRITE(0) seems to be needed for getting the */
|
|
/* write reg working on the Z1 / MSP430X platform */
|
|
#define CC2420_WRITE_REG(adr,data) \
|
|
do { \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE_FAST(adr); \
|
|
SPI_WRITE_FAST((uint8_t)((data) >> 8)); \
|
|
SPI_WRITE_FAST((uint8_t)(data & 0xff)); \
|
|
SPI_WAITFORTx_ENDED(); \
|
|
SPI_WRITE(0); \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while(0)
|
|
|
|
/* Read a register in the CC2420 */
|
|
#define CC2420_READ_REG(adr,data) \
|
|
do { \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE(adr | 0x40); \
|
|
data = (uint8_t)SPI_RXBUF; \
|
|
SPI_TXBUF = 0; \
|
|
SPI_WAITFOREORx(); \
|
|
data = SPI_RXBUF << 8; \
|
|
SPI_TXBUF = 0; \
|
|
SPI_WAITFOREORx(); \
|
|
data |= SPI_RXBUF; \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while(0)
|
|
|
|
#define CC2420_READ_FIFO_BYTE(data) \
|
|
do { \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE(CC2420_RXFIFO | 0x40); \
|
|
(void)SPI_RXBUF; \
|
|
SPI_READ(data); \
|
|
clock_delay(1); \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while(0)
|
|
|
|
#define CC2420_READ_FIFO_BUF(buffer,count) \
|
|
do { \
|
|
uint8_t i; \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE(CC2420_RXFIFO | 0x40); \
|
|
(void)SPI_RXBUF; \
|
|
for(i = 0; i < (count); i++) { \
|
|
SPI_READ(((uint8_t *)(buffer))[i]); \
|
|
} \
|
|
clock_delay(1); \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while(0)
|
|
|
|
#define CC2420_WRITE_FIFO_BUF(buffer,count) \
|
|
do { \
|
|
uint8_t i; \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE_FAST(CC2420_TXFIFO); \
|
|
for(i = 0; i < (count); i++) { \
|
|
SPI_WRITE_FAST(((uint8_t *)(buffer))[i]); \
|
|
} \
|
|
SPI_WAITFORTx_ENDED(); \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while(0)
|
|
|
|
/* Write to RAM in the CC2420 */
|
|
#define CC2420_WRITE_RAM(buffer,adr,count) \
|
|
do { \
|
|
uint8_t i; \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE_FAST(0x80 | ((adr) & 0x7f)); \
|
|
SPI_WRITE_FAST(((adr) >> 1) & 0xc0); \
|
|
for(i = 0; i < (count); i++) { \
|
|
SPI_WRITE_FAST(((uint8_t*)(buffer))[i]); \
|
|
} \
|
|
SPI_WAITFORTx_ENDED(); \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while(0)
|
|
|
|
/* Read from RAM in the CC2420 */
|
|
#define CC2420_READ_RAM(buffer,adr,count) \
|
|
do { \
|
|
uint8_t i; \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE(0x80 | ((adr) & 0x7f)); \
|
|
SPI_WRITE((((adr) >> 1) & 0xc0) | 0x20); \
|
|
SPI_RXBUF; \
|
|
for(i = 0; i < (count); i++) { \
|
|
SPI_READ(((uint8_t*)(buffer))[i]); \
|
|
} \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while(0)
|
|
|
|
/* Read status of the CC2420 */
|
|
#define CC2420_GET_STATUS(s) \
|
|
do { \
|
|
CC2420_SPI_ENABLE(); \
|
|
SPI_WRITE(CC2420_SNOP); \
|
|
s = SPI_RXBUF; \
|
|
CC2420_SPI_DISABLE(); \
|
|
} while (0)
|
|
|
|
#endif /* CC2420_H_ */
|