deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity
osd-contiki/cpu/avr/radio/rf230bb/rf230bb.c

979 lines
30 KiB
C
Raw Normal View History

*** empty log message ***
2009-07-08 18:17:07 +02:00
/*
* 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.
*
*
* $Id: rf230bb.c,v 1.1 2009/07/08 16:17:07 dak664 Exp $
*/
/**
* \brief This module contains radio driver code for the Atmel
* AT86RF230. It is modified to use the contiki core MAC layer.
*
* \author Blake Leverett <bleverett@gmail.com>
* Mike Vidales <mavida404@gmail.com>
* Eric Gnoske <egnoske@gmail.com>
* David Kopf <dak664@embarqmail.com>
*
*/
/** \addtogroup wireless
* @{
*/
/**
* \defgroup radiorf230 RF230 interface
* @{
*/
/**
* \file
* This file contains "barebones" radio driver code for use with the
* contiki core MAC layer.
*
*/
#include <stdio.h>
#include <string.h>
#include "contiki.h"
//#if defined(__AVR__)
#include <avr/io.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
//#elif defined(__MSP430__)
//#include <io.h>
//#endif
#include "dev/leds.h"
#include "dev/spi.h"
#include "rf230bb.h"
#include "hal.h"
//#include "frame.h"
#include "radio.h"
#include "net/rime/packetbuf.h"
#include "net/rime/rimestats.h"
#include "sys/timetable.h"
#define WITH_SEND_CCA 0
#if RF230_CONF_TIMESTAMPS
#include "net/rime/timesynch.h"
#define TIMESTAMP_LEN 3
#else /* RF230_CONF_TIMESTAMPS */
#define TIMESTAMP_LEN 0
#endif /* RF230_CONF_TIMESTAMPS */
#define FOOTER_LEN 2
#ifndef RF230_CONF_CHECKSUM
#define RF230_CONF_CHECKSUM 0
#endif /* RF230_CONF_CHECKSUM */
#if RF230_CONF_CHECKSUM
#include "lib/crc16.h"
#define CHECKSUM_LEN 2
#else
#define CHECKSUM_LEN 0
#endif /* RF230_CONF_CHECKSUM */
#define AUX_LEN (CHECKSUM_LEN + TIMESTAMP_LEN + FOOTER_LEN)
struct timestamp {
uint16_t time;
uint8_t authority_level;
};
#define FOOTER1_CRC_OK 0x80
#define FOOTER1_CORRELATION 0x7f
#define DEBUG 0
#if DEBUG
#define PRINTF(FORMAT,args...) printf_P(PSTR(FORMAT),##args)
#else
#define PRINTF(...) do {} while (0)
#endif
/* XXX hack: these will be made as Chameleon packet attributes */
rtimer_clock_t rf230_time_of_arrival, rf230_time_of_departure;
int rf230_authority_level_of_sender;
#if RF230_CONF_TIMESTAMPS
static rtimer_clock_t setup_time_for_transmission;
static unsigned long total_time_for_transmission, total_transmission_len;
static int num_transmissions;
#endif /* RF230_CONF_TIMESTAMPS */
/* RF230 hardware delay times, from datasheet */
typedef enum{
TIME_TO_ENTER_P_ON = 510, /**< Transition time from VCC is applied to P_ON. */
TIME_P_ON_TO_TRX_OFF = 510, /**< Transition time from P_ON to TRX_OFF. */
TIME_SLEEP_TO_TRX_OFF = 880, /**< Transition time from SLEEP to TRX_OFF. */
TIME_RESET = 6, /**< Time to hold the RST pin low during reset */
TIME_ED_MEASUREMENT = 140, /**< Time it takes to do a ED measurement. */
TIME_CCA = 140, /**< Time it takes to do a CCA. */
TIME_PLL_LOCK = 150, /**< Maximum time it should take for the PLL to lock. */
TIME_FTN_TUNING = 25, /**< Maximum time it should take to do the filter tuning. */
TIME_NOCLK_TO_WAKE = 6, /**< Transition time from *_NOCLK to being awake. */
TIME_CMD_FORCE_TRX_OFF = 1, /**< Time it takes to execute the FORCE_TRX_OFF command. */
TIME_TRX_OFF_TO_PLL_ACTIVE = 180, /**< Transition time from TRX_OFF to: RX_ON, PLL_ON, TX_ARET_ON and RX_AACK_ON. */
TIME_STATE_TRANSITION_PLL_ACTIVE = 1, /**< Transition time from PLL active state to another. */
}radio_trx_timing_t;
/*---------------------------------------------------------------------------*/
PROCESS(rf230_process, "RF230 receiver");
/*---------------------------------------------------------------------------*/
int rf230_send(const void *data, unsigned short len);
int rf230_read(void *buf, unsigned short bufsize);
void rf230_set_receiver(void (* recv)(const struct radio_driver *d));
int rf230_on(void);
int rf230_off(void);
const struct radio_driver rf230_driver =
{
rf230_send,
rf230_read,
rf230_set_receiver,
rf230_on,
rf230_off,
};
static void (* receiver_callback)(const struct radio_driver *);
//signed char rf230_last_rssi;
//uint8_t rf230_last_correlation;
static uint8_t receive_on;
//static uint8_t rssi_val;
uint8_t rx_mode;
/* Radio stuff in network byte order. */
//static uint16_t pan_id;
//static int channel;
/*----------------------------------------------------------------------------*/
/** \brief This function return the Radio Transceivers current state.
*
* \retval P_ON When the external supply voltage (VDD) is
* first supplied to the transceiver IC, the
* system is in the P_ON (Poweron) mode.
* \retval BUSY_RX The radio transceiver is busy receiving a
* frame.
* \retval BUSY_TX The radio transceiver is busy transmitting a
* frame.
* \retval RX_ON The RX_ON mode enables the analog and digital
* receiver blocks and the PLL frequency
* synthesizer.
* \retval TRX_OFF In this mode, the SPI module and crystal
* oscillator are active.
* \retval PLL_ON Entering the PLL_ON mode from TRX_OFF will
* first enable the analog voltage regulator. The
* transceiver is ready to transmit a frame.
* \retval BUSY_RX_AACK The radio was in RX_AACK_ON mode and received
* the Start of Frame Delimiter (SFD). State
* transition to BUSY_RX_AACK is done if the SFD
* is valid.
* \retval BUSY_TX_ARET The radio transceiver is busy handling the
* auto retry mechanism.
* \retval RX_AACK_ON The auto acknowledge mode of the radio is
* enabled and it is waiting for an incomming
* frame.
* \retval TX_ARET_ON The auto retry mechanism is enabled and the
* radio transceiver is waiting for the user to
* send the TX_START command.
* \retval RX_ON_NOCLK The radio transceiver is listening for
* incomming frames, but the CLKM is disabled so
* that the controller could be sleeping.
* However, this is only true if the controller
* is run from the clock output of the radio.
* \retval RX_AACK_ON_NOCLK Same as the RX_ON_NOCLK state, but with the
* auto acknowledge module turned on.
* \retval BUSY_RX_AACK_NOCLK Same as BUSY_RX_AACK, but the controller
* could be sleeping since the CLKM pin is
* disabled.
* \retval STATE_TRANSITION The radio transceiver's state machine is in
* transition between two states.
*/
uint8_t
radio_get_trx_state(void)
{
return hal_subregister_read(SR_TRX_STATUS);
}
/*----------------------------------------------------------------------------*/
/** \brief This function checks if the radio transceiver is sleeping.
*
* \retval true The radio transceiver is in SLEEP or one of the *_NOCLK
* states.
* \retval false The radio transceiver is not sleeping.
*/
bool radio_is_sleeping(void)
{
bool sleeping = false;
/* The radio transceiver will be at SLEEP or one of the *_NOCLK states only if */
/* the SLP_TR pin is high. */
if (hal_get_slptr() != 0){
sleeping = true;
}
return sleeping;
}
/*----------------------------------------------------------------------------*/
/** \brief This function will reset the state machine (to TRX_OFF) from any of
* its states, except for the SLEEP state.
*/
void
radio_reset_state_machine(void)
{
hal_set_slptr_low();
delay_us(TIME_NOCLK_TO_WAKE);
hal_subregister_write(SR_TRX_CMD, CMD_FORCE_TRX_OFF);
delay_us(TIME_CMD_FORCE_TRX_OFF);
}
/*----------------------------------------------------------------------------*/
/** \brief This function will change the current state of the radio
* transceiver's internal state machine.
*
* \param new_state Here is a list of possible states:
* - RX_ON Requested transition to RX_ON state.
* - TRX_OFF Requested transition to TRX_OFF state.
* - PLL_ON Requested transition to PLL_ON state.
* - RX_AACK_ON Requested transition to RX_AACK_ON state.
* - TX_ARET_ON Requested transition to TX_ARET_ON state.
*
* \retval RADIO_SUCCESS Requested state transition completed
* successfully.
* \retval RADIO_INVALID_ARGUMENT Supplied function parameter out of bounds.
* \retval RADIO_WRONG_STATE Illegal state to do transition from.
* \retval RADIO_BUSY_STATE The radio transceiver is busy.
* \retval RADIO_TIMED_OUT The state transition could not be completed
* within resonable time.
*/
radio_status_t
radio_set_trx_state(uint8_t new_state)
{
uint8_t original_state;
/*Check function paramter and current state of the radio transceiver.*/
if (!((new_state == TRX_OFF) ||
(new_state == RX_ON) ||
(new_state == PLL_ON) ||
(new_state == RX_AACK_ON) ||
(new_state == TX_ARET_ON))){
return RADIO_INVALID_ARGUMENT;
}
if (radio_is_sleeping() == true){
return RADIO_WRONG_STATE;
}
// Wait for radio to finish previous operation
for(;;)
{
original_state = radio_get_trx_state();
if (original_state != BUSY_TX_ARET &&
original_state != BUSY_RX_AACK &&
original_state != BUSY_RX &&
original_state != BUSY_TX)
break;
}
if (new_state == original_state){
return RADIO_SUCCESS;
}
/* At this point it is clear that the requested new_state is: */
/* TRX_OFF, RX_ON, PLL_ON, RX_AACK_ON or TX_ARET_ON. */
/* The radio transceiver can be in one of the following states: */
/* TRX_OFF, RX_ON, PLL_ON, RX_AACK_ON, TX_ARET_ON. */
if(new_state == TRX_OFF){
radio_reset_state_machine(); /* Go to TRX_OFF from any state. */
} else {
/* It is not allowed to go from RX_AACK_ON or TX_AACK_ON and directly to */
/* TX_AACK_ON or RX_AACK_ON respectively. Need to go via RX_ON or PLL_ON. */
if ((new_state == TX_ARET_ON) &&
(original_state == RX_AACK_ON)){
/* First do intermediate state transition to PLL_ON, then to TX_ARET_ON. */
/* The final state transition to TX_ARET_ON is handled after the if-else if. */
hal_subregister_write(SR_TRX_CMD, PLL_ON);
delay_us(TIME_STATE_TRANSITION_PLL_ACTIVE);
} else if ((new_state == RX_AACK_ON) &&
(original_state == TX_ARET_ON)){
/* First do intermediate state transition to RX_ON, then to RX_AACK_ON. */
/* The final state transition to RX_AACK_ON is handled after the if-else if. */
hal_subregister_write(SR_TRX_CMD, RX_ON);
delay_us(TIME_STATE_TRANSITION_PLL_ACTIVE);
}
/* Any other state transition can be done directly. */
hal_subregister_write(SR_TRX_CMD, new_state);
/* When the PLL is active most states can be reached in 1us. However, from */
/* TRX_OFF the PLL needs time to activate. */
if (original_state == TRX_OFF){
delay_us(TIME_TRX_OFF_TO_PLL_ACTIVE);
} else {
delay_us(TIME_STATE_TRANSITION_PLL_ACTIVE);
}
} /* end: if(new_state == TRX_OFF) ... */
/*Verify state transition.*/
radio_status_t set_state_status = RADIO_TIMED_OUT;
if (radio_get_trx_state() == new_state){
set_state_status = RADIO_SUCCESS;
/* set rx_mode flag based on mode we're changing to */
if (new_state == RX_ON ||
new_state == RX_AACK_ON){
rx_mode = true;
} else {
rx_mode = false;
}
}
return set_state_status;
}
/*---------------------------------------------------------------------------*/
void
rf230_waitidle(void)
{
// PRINTF("rf230_waitidle");
uint8_t radio_state;
for(;;)
{
radio_state = hal_subregister_read(SR_TRX_STATUS);
if (radio_state != BUSY_TX_ARET &&
radio_state != BUSY_RX_AACK &&
radio_state != BUSY_RX &&
radio_state != BUSY_TX)
break;
PRINTF(".");
}
}
/*---------------------------------------------------------------------------*/
static uint8_t locked, lock_on, lock_off;
static void
on(void)
{
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
PRINTF("rf230 internal on\n");
receive_on = 1;
hal_set_slptr_low();
//radio_is_waking=1;//can test this before tx instead of delaying
delay_us(TIME_SLEEP_TO_TRX_OFF);
delay_us(TIME_SLEEP_TO_TRX_OFF);//extra delay for now
radio_set_trx_state(RX_AACK_ON);
// flushrx();
}
static void
off(void)
{
PRINTF("rf230 internal off\n");
receive_on = 0;
/* Wait for transmission to end before turning radio off. */
rf230_waitidle();
/* Force the device into TRX_OFF. */
radio_reset_state_machine();
/* Sleep Radio */
hal_set_slptr_high();
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
}
/*---------------------------------------------------------------------------*/
#define GET_LOCK() locked = 1
static void RELEASE_LOCK(void) {
if(lock_on) {
on();
lock_on = 0;
}
if(lock_off) {
off();
lock_off = 0;
}
locked = 0;
}
/*---------------------------------------------------------------------------*/
void
rf230_set_receiver(void (* recv)(const struct radio_driver *))
{
//PRINTF("rf230_set receiver\n");
receiver_callback = recv;
}
/*---------------------------------------------------------------------------*/
int
rf230_off(void)
{
// PRINTF("rf230_off\n");
/* Don't do anything if we are already turned off. */
if(receive_on == 0) {
return 1;
}
/* If we are called when the driver is locked, we indicate that the
radio should be turned off when the lock is unlocked. */
if(locked) {
lock_off = 1;
return 1;
}
off();
return 1;
}
/*---------------------------------------------------------------------------*/
int
rf230_on(void)
{
//PRINTF("rf230_on\n");
if(receive_on) {
return 1;
}
if(locked) {
lock_on = 1;
return 1;
}
on();
return 1;
}
/*---------------------------------------------------------------------------*/
int
rf230_get_channel(void)
{
return hal_subregister_read(SR_CHANNEL);
// return channel;
}
/*---------------------------------------------------------------------------*/
void
rf230_set_channel(int c)
{
/* Wait for any transmission to end. */
rf230_waitidle();
//channel=c;
hal_subregister_write(SR_CHANNEL, c);
}
/*---------------------------------------------------------------------------*/
void
rf230_set_pan_addr(uint16_t pan,uint16_t addr,uint8_t *ieee_addr)
{
PRINTF("rf230: PAN=%x Short Addr=%x\n",pan,addr);
uint8_t abyte;
abyte = pan & 0xFF;
hal_register_write(RG_PAN_ID_0,abyte);
abyte = (pan >> 8*1) & 0xFF;
hal_register_write(RG_PAN_ID_1, abyte);
abyte = addr & 0xFF;
hal_register_write(RG_SHORT_ADDR_0, abyte);
abyte = (addr >> 8*1) & 0xFF;
hal_register_write(RG_SHORT_ADDR_1, abyte);
if (ieee_addr != NULL) {
PRINTF("MAC=%x",*ieee_addr);
hal_register_write(RG_IEEE_ADDR_7, *ieee_addr++);
PRINTF(":%x",*ieee_addr);
hal_register_write(RG_IEEE_ADDR_6, *ieee_addr++);
PRINTF(":%x",*ieee_addr);
hal_register_write(RG_IEEE_ADDR_5, *ieee_addr++);
PRINTF(":%x",*ieee_addr);
hal_register_write(RG_IEEE_ADDR_4, *ieee_addr++);
PRINTF(":%x",*ieee_addr);
hal_register_write(RG_IEEE_ADDR_3, *ieee_addr++);
PRINTF(":%x",*ieee_addr);
hal_register_write(RG_IEEE_ADDR_2, *ieee_addr++);
PRINTF(":%x",*ieee_addr);
hal_register_write(RG_IEEE_ADDR_1, *ieee_addr++);
PRINTF(":%x",*ieee_addr);
hal_register_write(RG_IEEE_ADDR_0, *ieee_addr);
PRINTF("\n");
}
}
/*---------------------------------------------------------------------------*/
/* Process to handle input packets
* Receive interrupts cause this process to be polled
* It calls the core MAC layer which calls rf230_read to get the packet
*/
PROCESS_THREAD(rf230_process, ev, data)
{
PROCESS_BEGIN();
while(1) {
PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
#if RF230_TIMETABLE_PROFILING
TIMETABLE_TIMESTAMP(rf230_timetable, "poll");
#endif /* RF230_TIMETABLE_PROFILING */
if(receiver_callback != NULL) {
receiver_callback(&rf230_driver);
#if RF230_TIMETABLE_PROFILING
TIMETABLE_TIMESTAMP(rf230_timetable, "end");
timetable_aggregate_compute_detailed(&aggregate_time,
&rf230_timetable);
timetable_clear(&rf230_timetable);
#endif /* RF230_TIMETABLE_PROFILING */
} else {
PRINTF("rf230_process not receiving function\n");
// flushrx();
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/*
* This routine is called by the radio receive interrupt in hal.c
* It just sets the poll flag for the rf230 process.
*/
#if RF230_CONF_TIMESTAMPS
static volatile rtimer_clock_t interrupt_time;
static volatile int interrupt_time_set;
#endif /* RF230_CONF_TIMESTAMPS */
#if RF230_TIMETABLE_PROFILING
#define rf230_timetable_size 16
TIMETABLE(rf230_timetable);
TIMETABLE_AGGREGATE(aggregate_time, 10);
#endif /* RF230_TIMETABLE_PROFILING */
void
rf230_interrupt(void)
{
#if RF230_CONF_TIMESTAMPS
interrupt_time = timesynch_time();
interrupt_time_set = 1;
#endif /* RF230_CONF_TIMESTAMPS */
process_poll(&rf230_process);
#if RF230_TIMETABLE_PROFILING
timetable_clear(&rf230_timetable);
TIMETABLE_TIMESTAMP(rf230_timetable, "interrupt");
#endif /* RF230_TIMETABLE_PROFILING */
return;
}
/* The frame is buffered to rxframe in the interrupt routine in hal.c */
hal_rx_frame_t rxframe;
/*---------------------------------------------------------------------------*/
int
rf230_read(void *buf, unsigned short bufsize)
{
uint8_t *framep;
// uint8_t footer[2];
uint8_t len;
#if RF230_CONF_CHECKSUM
uint16_t checksum;
#endif /* RF230_CONF_CHECKSUM */
#if RF230_CONF_TIMESTAMPS
struct timestamp t;
#endif /* RF230_CONF_TIMESTAMPS */
PRINTF("rf230_read: %u bytes lqi %u crc %u\n",rxframe.length,rxframe.lqi,rxframe.crc);
#if DEBUG>1
for (len=0;len<rxframe.length;len++) PRINTF(" %x",rxframe.data[len]);PRINTF("\n");
#endif
if (rxframe.length==0) {
return 0;
}
#if RF230_CONF_TIMESTAMPS
bomb
if(interrupt_time_set) {
rf230_time_of_arrival = interrupt_time;
interrupt_time_set = 0;
} else {
rf230_time_of_arrival = 0;
}
rf230_time_of_departure = 0;
#endif /* RF230_CONF_TIMESTAMPS */
GET_LOCK();
// if(rxframe.length > RF230_MAX_PACKET_LEN) {
// // Oops, we must be out of sync.
// flushrx();
// RIMESTATS_ADD(badsynch);
// RELEASE_LOCK();
// return 0;
// }
//hal returns two extra bytes containing the checksum
//below works because auxlen is 2
len = rxframe.length;
if(len <= AUX_LEN) {
// flushrx();
RIMESTATS_ADD(tooshort);
RELEASE_LOCK();
return 0;
}
if(len - AUX_LEN > bufsize) {
// flushrx();
RIMESTATS_ADD(toolong);
RELEASE_LOCK();
return 0;
}
/* Transfer the frame, stripping the checksum */
framep=&(rxframe.data[0]);
memcpy(buf,framep,len-2);
/* Clear the length field to allow buffering of the next packet */
rxframe.length=0;
// framep+=len-AUX_LEN+2;
#if RF230_CONF_CHECKSUM
bomb
memcpy(&checksum,framep,CHECKSUM_LEN);
framep+=CHECKSUM_LEN;
#endif /* RF230_CONF_CHECKSUM */
#if RF230_CONF_TIMESTAMPS
bomb
memcpy(&t,framep,TIMESTAMP_LEN);
framep+=TIMESTAMP_LEN;
#endif /* RF230_CONF_TIMESTAMPS */
// memcpy(&footer,framep,FOOTER_LEN);
#if RF230_CONF_CHECKSUM
bomb
if(checksum != crc16_data(buf, len - AUX_LEN, 0)) {
PRINTF("rf230: checksum failed 0x%04x != 0x%04x\n",
checksum, crc16_data(buf, len - AUX_LEN, 0));
}
if(footer[1] & FOOTER1_CRC_OK &&
checksum == crc16_data(buf, len - AUX_LEN, 0)) {
#else
if (rxframe.crc) {
#endif /* RF230_CONF_CHECKSUM */
/*
packetbuf_copyfrom(parsed_frame->payload, parsed_frame->payload_length);
packetbuf_set_datalen(parsed_frame->payload_length);
memcpy(dest_reversed, (uint8_t *)parsed_frame->dest_addr, UIP_LLADDR_LEN);
memcpy(src_reversed, (uint8_t *)parsed_frame->src_addr, UIP_LLADDR_LEN);
//Change addresses to expected byte order
byte_reverse((uint8_t *)dest_reversed, UIP_LLADDR_LEN);
byte_reverse((uint8_t *)src_reversed, UIP_LLADDR_LEN);
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, (const rimeaddr_t *)dest_reversed);
packetbuf_set_addr(PACKETBUF_ADDR_SENDER, (const rimeaddr_t *)src_reversed);
*/
packetbuf_set_attr(PACKETBUF_ATTR_RSSI, hal_subregister_read( SR_RSSI ));
packetbuf_set_attr(PACKETBUF_ATTR_LINK_QUALITY, rxframe.lqi);
RIMESTATS_ADD(llrx);
#if RF230_CONF_TIMESTAMPS
bomb
rf230_time_of_departure =
t.time +
setup_time_for_transmission +
(total_time_for_transmission * (len - 2)) / total_transmission_len;
rf230_authority_level_of_sender = t.authority_level;
packetbuf_set_attr(PACKETBUF_ATTR_TIMESTAMP, t.time);
#endif /* RF230_CONF_TIMESTAMPS */
} else {
PRINTF("rf230: Bad CRC\n");
RIMESTATS_ADD(badcrc);
len = AUX_LEN;
}
// if (?)
/* Another packet has been received and needs attention. */
// process_poll(&rf230_process);
// }
RELEASE_LOCK();
if(len < AUX_LEN) {
return 0;
}
return len - AUX_LEN;
}
/*---------------------------------------------------------------------------*/
void
rf230_set_txpower(uint8_t power)
{
if (power > TX_PWR_17_2DBM){
power=TX_PWR_17_2DBM;
}
if (radio_is_sleeping() ==true) {
PRINTF("rf230_set_txpower:Sleeping");
} else {
hal_subregister_write(SR_TX_PWR, power);
}
}
/*---------------------------------------------------------------------------*/
int
rf230_get_txpower(void)
{
if (radio_is_sleeping() ==true) {
PRINTF("rf230_get_txpower:Sleeping");
return 0;
} else {
return hal_subregister_read(SR_TX_PWR);
}
}
/*---------------------------------------------------------------------------*/
int
rf230_rssi(void)
{
int rssi;
int radio_was_off = 0;
/*The RSSI measurement should only be done in RX_ON or BUSY_RX.*/
if(!receive_on) {
radio_was_off = 1;
rf230_on();
}
rssi = (int)((signed char)hal_subregister_read(SR_RSSI));
if(radio_was_off) {
rf230_off();
}
return rssi;
}
/*---------------------------------------------------------------------------*/
int
rf230_send(const void *payload, unsigned short payload_len)
{
// int i;
uint8_t total_len,buffer[RF230_MAX_TX_FRAME_LENGTH],*pbuf;
#if RF230_CONF_TIMESTAMPS
struct timestamp timestamp;
#endif /* RF230_CONF_TIMESTAMPS */
#if RF230_CONF_CHECKSUM
uint16_t checksum;
#endif /* RF230_CONF_CHECKSUM */
GET_LOCK();
if(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) > 0) {
rf230_set_txpower(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) - 1);
} else {
rf230_set_txpower(TX_PWR_17_2DBM);
}
RIMESTATS_ADD(lltx);
#if RF230_CONF_CHECKSUM
checksum = crc16_data(payload, payload_len, 0);
#endif /* RF230_CONF_CHECKSUM */
total_len = payload_len + AUX_LEN;
/*Check function parameters and current state.*/
if (total_len > RF230_MAX_TX_FRAME_LENGTH){
return -1;
}
pbuf=&buffer[0];
memcpy(pbuf,payload,payload_len);
pbuf+=payload_len;
#if RF230_CONF_CHECKSUM
memcpy(pbuf,&checksum,CHECKSUM_LEN);
pbuf+=CHECKSUM_LEN;
#endif /* RF230_CONF_CHECKSUM */
#if RF230_CONF_TIMESTAMPS
timestamp.authority_level = timesynch_authority_level();
timestamp.time = timesynch_time();
memcpy(pbuf,&timestamp,TIMESTAMP_LEN);
pbuf+=TIMESTAMP_LEN;
#endif /* RF230_CONF_TIMESTAMPS */
/*Below comments were for cc240 radio, don't know how they apply to rf230 - DAK */
/* The TX FIFO can only hold one packet. Make sure to not overrun
* FIFO by waiting for transmission to start here and synchronizing
* with the RF230_TX_ACTIVE check in rf230_send.
*
* Note that we may have to wait up to 320 us (20 symbols) before
* transmission starts.
*/
//#ifdef TMOTE_SKY
//#define LOOP_20_SYMBOLS 400 /* 326us (msp430 @ 2.4576MHz) */
//#elif __AVR__
//#define LOOP_20_SYMBOLS 500 /* XXX */
//#endif
#define LOOP_20_SYMBOLS 500
/* Wait for any previous transmission to finish. */
rf230_waitidle();
hal_subregister_write(SR_TRX_CMD, CMD_FORCE_TRX_OFF);
delay_us(TIME_P_ON_TO_TRX_OFF);
radio_set_trx_state(TX_ARET_ON); //enable auto ack
//#if WITH_SEND_CCA
// radio_set_trx_state(TX_ARET_ON); //enable auto ack
//#endif /* WITH_SEND_CCA */
/* Toggle the SLP_TR pin to initiate the frame transmission. */
PRINTF("rf230: sending %d bytes\n", payload_len);
hal_set_slptr_high();
hal_set_slptr_low();
hal_frame_write(buffer, total_len);
// for(i = LOOP_20_SYMBOLS; i > 0; i--) {//dak was working with this
if(1) {
#if RF230_CONF_TIMESTAMPS
rtimer_clock_t txtime = timesynch_time();
#endif /* RF230_CONF_TIMESTAMPS */
if(receive_on) {
ENERGEST_OFF(ENERGEST_TYPE_LISTEN);
}
ENERGEST_ON(ENERGEST_TYPE_TRANSMIT);
/* We wait until transmission has ended so that we get an
accurate measurement of the transmission time.*/
rf230_waitidle();
radio_set_trx_state(RX_AACK_ON);//Re-enable receive mode
#if RF230_CONF_TIMESTAMPS
setup_time_for_transmission = txtime - timestamp.time;
if(num_transmissions < 10000) {
total_time_for_transmission += timesynch_time() - txtime;
total_transmission_len += total_len;
num_transmissions++;
}
#endif /* RF230_CONF_TIMESTAMPS */
#ifdef ENERGEST_CONF_LEVELDEVICE_LEVELS
ENERGEST_OFF_LEVEL(ENERGEST_TYPE_TRANSMIT,rf230_get_txpower());
#endif
ENERGEST_OFF(ENERGEST_TYPE_TRANSMIT);
if(receive_on) {
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
}
RELEASE_LOCK();
return 0;
}
// }
/* If we are using WITH_SEND_CCA, we get here if the packet wasn't
transmitted because of other channel activity. */
RIMESTATS_ADD(contentiondrop);
PRINTF("rf230: do_send() transmission never started\n");
RELEASE_LOCK();
return -3; /* Transmission never started! */
}/*---------------------------------------------------------------------------*/
void
rf230_init(void)
{
/* Wait in case VCC just applied */
delay_us(TIME_TO_ENTER_P_ON);
/* Calibrate oscillator */
// calibrate_rc_osc_32k();
/* Initialize Hardware Abstraction Layer. */
hal_init();
/* Do full rf230 Reset */
hal_set_rst_low();
hal_set_slptr_low();
delay_us(TIME_RESET);
hal_set_rst_high();
/* Force transition to TRX_OFF. */
hal_subregister_write(SR_TRX_CMD, CMD_FORCE_TRX_OFF);
delay_us(TIME_P_ON_TO_TRX_OFF);
/* Verify that it is a supported version */
uint8_t tvers = hal_register_read(RG_VERSION_NUM);
uint8_t tmanu = hal_register_read(RG_MAN_ID_0);
if ((tvers != RF230_REVA) && (tvers != RF230_REVB))
PRINTF("rf230: Unsupported version %u\n",tvers);
if (tmanu != SUPPORTED_MANUFACTURER_ID)
PRINTF("rf230: Unsupported manufacturer ID %u\n",tmanu);
PRINTF("rf230: Version %u, ID %u\n",tvers,tmanu);
hal_register_write(RG_IRQ_MASK, RF230_SUPPORTED_INTERRUPT_MASK);
/* Turn off address decoding. */
// reg = getreg(RF230_MDMCTRL0);
// reg &= ~ADR_DECODE;
// setreg(RF230_MDMCTRL0, reg);
/* Change default values as recomended in the data sheet, */
/* correlation threshold = 20, RX bandpass filter = 1.3uA. */
// setreg(RF230_MDMCTRL1, CORR_THR(20));
// reg = getreg(RF230_RXCTRL1);
// reg |= RXBPF_LOCUR;
// setreg(RF230_RXCTRL1, reg);
/* Set the FIFOP threshold to maximum. */
// setreg(RF230_IOCFG0, FIFOP_THR(127));
/* Turn off "Security enable" (page 32). */
// reg = getreg(RF230_SECCTRL0);
// reg &= ~RXFIFO_PROTECTION;
// setreg(RF230_SECCTRL0, reg);
// rf230_set_pan_addr(0xffff, 0x0000, NULL);
// rf230_set_channel(24);
/* Set up the radio for auto mode operation. */
hal_subregister_write(SR_MAX_FRAME_RETRIES, 2 );
hal_subregister_write(SR_TX_AUTO_CRC_ON, 1);
hal_subregister_write(SR_TRX_CMD, CMD_RX_AACK_ON);
/* Start the packet receive process */
process_start(&rf230_process, NULL);
}
Reference in a new issue Copy permalink