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osd-contiki/cpu/avr/radio/rf230bb/rf230bb.c
dak664 cbb8621e30 update to new driver format
2010-02-22 22:23:18 +00:00

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/*
* 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.
*
* @(#)$Id: rf230bb.c,v 1.5 2010/02/22 22:23:18 dak664 Exp $
*/
/*
* This code is almost device independent and should be easy to port.
* Ported to Atmel RF230 21Feb2010 by dak
*/
#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 "dev/rf230.h"
//#include "dev/rf230_const.h"
#include "net/rime/packetbuf.h"
#include "net/rime/rimestats.h"
#include "net/netstack.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
#define FOOTER_LEN 0
#ifndef RF230_CONF_CHECKSUM
#define RF230_CONF_CHECKSUM 0
#endif /* RF230_CONF_CHECKSUM */
#ifndef RF230_CONF_AUTOACK
#define RF230_CONF_AUTOACK 0
#endif /* RF230_CONF_AUTOACK */
//Automatic and manual CRC both append 2 bytes to packets
#if RF230_CONF_CHECKSUM
#include "lib/crc16.h"
#define CHECKSUM_LEN 2
#else
#define CHECKSUM_LEN 2
#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(...) printf(__VA_ARGS__)
#define PRINTSHORT(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#define PRINTSHORT(...)
//#define PRINTSHORT(...) printf(__VA_ARGS__)
#endif
//void rf230_arch_init(void);
/* 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 */
int rf230_packets_seen, rf230_packets_read;
static uint8_t volatile pending;
/* RF230 hardware delay times, from datasheet */
typedef enum{
TIME_TO_ENTER_P_ON = 510, /**< Transition time from VCC is applied to P_ON - most favorable case! */
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 driver");
/*---------------------------------------------------------------------------*/
int rf230_on(void);
int rf230_off(void);
static int rf230_read(void *buf, unsigned short bufsize);
static int rf230_prepare(const void *data, unsigned short len);
static int rf230_transmit(unsigned short len);
static int rf230_send(const void *data, unsigned short len);
static int rf230_receiving_packet(void);
static int pending_packet(void);
static int rf230_cca(void);
signed char rf230_last_rssi;
uint8_t rf230_last_correlation;
const struct radio_driver rf230_driver =
{
rf230_init,
rf230_prepare,
rf230_transmit,
rf230_send,
rf230_read,
rf230_cca,
rf230_receiving_packet,
pending_packet,
rf230_on,
rf230_off,
};
static uint8_t receive_on;
static int channel;
/* Received frames are buffered to rxframe in the interrupt routine in hal.c */
hal_rx_frame_t rxframe;
/*----------------------------------------------------------------------------*/
/** \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.
*/
static 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.
*/
static 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.
*/
static 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.
*/
static 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;
}
/*---------------------------------------------------------------------------*/
static int
rf230_isidle(void)
{
uint8_t radio_state;
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) {
return(1);
} else {
return(0);
}
}
static void
rf230_waitidle(void)
{
// PRINTF("rf230_waitidle");
while (1) {
if (rf230_isidle()) break;
// PRINTSHORT(".");
}
}
static void
flushrx(void)
{
// rxframe.length=0;
// FASTSPI_READ_FIFO_BYTE(dummy);
// FASTSPI_STROBE(RF230_SFLUSHRX);
// FASTSPI_STROBE(RF230_SFLUSHRX);
}
/*---------------------------------------------------------------------------*/
static uint8_t locked, lock_on, lock_off;
static void
on(void)
{
ENERGEST_ON(ENERGEST_TYPE_LISTEN);
#if JACKDAW
//blue=0 red=1 green=2 yellow=3
#define Led0_on() (PORTD |= 0x80)
#define Led1_on() (PORTD &= ~0x20)
#define Led2_on() (PORTE &= ~0x80)
#define Led3_on() (PORTE &= ~0x40)
#define Led0_off() (PORTD &= ~0x80)
#define Led1_off() (PORTD |= 0x20)
#define Led2_off() (PORTE |= 0x80)
#define Led3_off() (PORTE |= 0x40)
Led2_on();
#else
PRINTSHORT("o");
// PRINTF("on\n");
#endif
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, wake time depends on board capacitance
#if RF230_CONF_NO_AUTO_ACK
radio_set_trx_state(RX_ON);
#else
radio_set_trx_state(RX_AACK_ON);
#endif
flushrx();
}
static void
off(void)
{
receive_on = 0;
#if JACKDAW
Led2_off();
#else
PRINTF("off\n");
PRINTSHORT("f");
#endif
#if !JACKDAW && 0 //Leave stick radio on for testing
rf230_radio_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();
#endif
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;
}
/*---------------------------------------------------------------------------*/
static void
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"); //happens with cxmac
} else {
hal_subregister_write(SR_TX_PWR, power);
}
}
/*---------------------------------------------------------------------------*/
int
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);
// rf230_set_pan_addr(0xffff, 0x0000, NULL);
// rf230_set_channel(26);
/* Set up the radio for auto mode operation. */
/* May need changing for different mac protocols! */
hal_subregister_write(SR_MAX_FRAME_RETRIES, 2 );
/* Use automatic CRC unless manual is specified */
#if RF230_CONF_CHECKSUM
hal_subregister_write(SR_TX_AUTO_CRC_ON, 0);
#else
hal_subregister_write(SR_TX_AUTO_CRC_ON, 1);
#endif
#if RF230_CONF_NO_AUTO_ACK
hal_subregister_write(SR_TRX_CMD, CMD_RX_ON);
#else
hal_subregister_write(SR_TRX_CMD, CMD_RX_AACK_ON);
#endif
/* Start the packet receive process */
process_start(&rf230_process, NULL);
return 1;
}
/*---------------------------------------------------------------------------*/
static uint8_t buffer[RF230_MAX_TX_FRAME_LENGTH];
static int
rf230_transmit(unsigned short payload_len)
{
int txpower;
uint8_t total_len;
#if RF230_CONF_TIMESTAMPS
struct timestamp timestamp;
#endif /* RF230_CONF_TIMESTAMPS */
#if RF230_CONF_CHECKSUM
uint16_t checksum;
#endif /* RF230_CONF_CHECKSUM */
GET_LOCK();
txpower = 0;
if(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) > 0) {
/* Remember the current transmission power */
txpower = rf230_get_txpower();
/* Set the specified transmission power */
set_txpower(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) - 1);
}
total_len = payload_len + AUX_LEN;
#if RF230_CONF_TIMESTAMPS
rtimer_clock_t txtime = timesynch_time();
#endif /* RF230_CONF_TIMESTAMPS */
/* 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);
/* Enable auto retry (?) */
radio_set_trx_state(TX_ARET_ON);
/* Toggle the SLP_TR pin to initiate the frame transmission. */
hal_set_slptr_high();
hal_set_slptr_low();
hal_frame_write(buffer, total_len);
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();
/* Reenable receive mode */
#if RF230_CONF_NO_AUTO_ACK
radio_set_trx_state(RX_ON);
#else
radio_set_trx_state(RX_AACK_ON);
#endif
#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);
} else {
/* We need to explicitly turn off the radio,
* since STXON[CCA] -> TX_ACTIVE -> RX_ACTIVE */
off();
}
if(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) > 0) {
/* Restore the transmission power */
set_txpower(txpower & 0xff);
}
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");
//if(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) > 0) {
/* Restore the transmission power */
// set_txpower(txpower & 0xff);
// }
// RELEASE_LOCK();
// return -3; /* Transmission never started! */
}
/*---------------------------------------------------------------------------*/
static int
rf230_prepare(const void *payload, unsigned short payload_len)
{
uint8_t total_len,*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();
// PRINTF("rf230: sending %d bytes\n", payload_len);
// PRINTSHORT("s%d ",payload_len);
RIMESTATS_ADD(lltx);
#if RF230_CONF_CHECKSUM
checksum = crc16_data(payload, payload_len, 0);
#endif /* RF230_CONF_CHECKSUM */
/* Copy payload to RAM buffer */
total_len = payload_len + AUX_LEN;
if (total_len > RF230_MAX_TX_FRAME_LENGTH){
#if RADIOSTATS
rf230_sendfail++;
#endif
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 */
/* If jackdaw report frame to ethernet interface */
#if JACKDAW && 0
params.payload_len = total_len;
params.payload = buffer;
mac_logTXtoEthernet(&params, &result);
#endif /* JACKDAW */
/* 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);
/* Enable auto retry (?) */
// radio_set_trx_state(TX_ARET_ON);
/* Toggle the SLP_TR pin to initiate the frame transmission. */
// hal_set_slptr_high();
// hal_set_slptr_low();
// hal_frame_write(buffer, total_len);
RELEASE_LOCK();
return 0;
}
/*---------------------------------------------------------------------------*/
static int
rf230_send(const void *payload, unsigned short payload_len)
{
rf230_prepare(payload, payload_len);
return rf230_transmit(payload_len);
}
/*---------------------------------------------------------------------------*/
int
rf230_off(void)
{
/* 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;
}
/* If we are currently receiving a packet
we don't actually switch the radio off now, but signal that the
driver should switch off the radio once the packet has been
received and processed, by setting the 'lock_off' variable. */
if (!rf230_isidle()) {
// if (radio_get_trx_state()==BUSY_RX) {
lock_off = 1;
return 1;
}
off();
return 1;
}
/*---------------------------------------------------------------------------*/
int
rf230_on(void)
{
if(receive_on) {
return 1;
}
if(locked) {
lock_on = 1;
return 1;
}
on();
return 1;
}
/*---------------------------------------------------------------------------*/
int
rf230_get_channel(void)
{
//jackdaw reads zero channel, raven reads correct channel?
//return hal_subregister_read(SR_CHANNEL);
return channel;
}
/*---------------------------------------------------------------------------*/
void
rf230_set_channel(int c)
{
/* Wait for any transmission to end. */
// PRINTF("rf230: Set Channel %u\n",c);
rf230_waitidle();
channel=c;
hal_subregister_write(SR_CHANNEL, c);
}
/*---------------------------------------------------------------------------*/
void
rf230_set_pan_addr(unsigned pan,
unsigned addr,
const uint8_t *ieee_addr)
//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");
}
}
/*---------------------------------------------------------------------------*/
/*
* Interrupt leaves frame intact in FIFO.
*/
#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 */
int
rf230_interrupt(void)
{
#if RF230_CONF_TIMESTAMPS
interrupt_time = timesynch_time();
interrupt_time_set = 1;
#endif /* RF230_CONF_TIMESTAMPS */
// CLEAR_FIFOP_INT();
process_poll(&rf230_process);
#if RF230_TIMETABLE_PROFILING
timetable_clear(&rf230_timetable);
TIMETABLE_TIMESTAMP(rf230_timetable, "interrupt");
#endif /* RF230_TIMETABLE_PROFILING */
pending = 1;
rf230_packets_seen++;
return 1;
}
/*---------------------------------------------------------------------------*/
/* 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
*/
uint8_t rf230processflag; //for debugging process call problems
PROCESS_THREAD(rf230_process, ev, data)
{
int len;
PROCESS_BEGIN();
rf230processflag=99;
// PRINTF("rf230_process: started\n");
while(1) {
PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
rf230processflag=42;
#if RF230_TIMETABLE_PROFILING
TIMETABLE_TIMESTAMP(rf230_timetable, "poll");
#endif /* RF230_TIMETABLE_PROFILING */
pending = 0;
// PRINTF("rf230_process: callback\n");
packetbuf_clear();
len = rf230_read(packetbuf_dataptr(), PACKETBUF_SIZE);
rf230processflag=1;
if(len > 0) {
packetbuf_set_datalen(len);
rf230processflag=2;
NETSTACK_RDC.input();
#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 */
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
static int
rf230_read(void *buf, unsigned short bufsize)
{
uint8_t len,*framep;
#if FOOTER_LEN
uint8_t footer[FOOTER_LEN];
#endif /* FOOTER_LEN */
#if RF230_CONF_CHECKSUM
uint16_t checksum;
#endif /* RF230_CONF_CHECKSUM */
#if RF230_CONF_TIMESTAMPS
struct timestamp t;
#endif /* RF230_CONF_TIMESTAMPS */
len=rxframe.length;
if (len==0) {
return 0;
}
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 RF230_CONF_TIMESTAMPS
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();
rf230_packets_read++;
//if(len > RF230_MAX_PACKET_LEN) {
if(len > RF230_MAX_TX_FRAME_LENGTH) {
/* Oops, we must be out of sync. */
flushrx();
RIMESTATS_ADD(badsynch);
RELEASE_LOCK();
return 0;
}
if(len <= AUX_LEN) {
PRINTF("len <= AUX_LEN\n");
flushrx();
RIMESTATS_ADD(tooshort);
RELEASE_LOCK();
return 0;
}
if(len - AUX_LEN > bufsize) {
PRINTF("len - AUX_LEN > bufsize\n");
flushrx();
RIMESTATS_ADD(toolong);
RELEASE_LOCK();
return 0;
}
/* Transfer the frame, stripping the footer */
framep=&(rxframe.data[0]);
memcpy(buf,framep,len-AUX_LEN);
framep+=len-AUX_LEN;
/* Clear the length field to allow buffering of the next packet */
rxframe.length=0;
#if RF230_CONF_CHECKSUM
memcpy(&checksum,framep,CHECKSUM_LEN);
framep+=CHECKSUM_LEN;
#endif /* RF230_CONF_CHECKSUM */
#if RF230_CONF_TIMESTAMPS
memcpy(&t,framep,TIMESTAMP_LEN);
framep+=TIMESTAMP_LEN;
#endif /* RF230_CONF_TIMESTAMPS */
#if FOOTER_LEN
memcpy(footer,framep,FOOTER_LEN);
#endif
#if RF230_CONF_CHECKSUM
if(checksum != crc16_data(buf, len - AUX_LEN, 0)) {
PRINTF("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 (1) {
// if(footer[1] & FOOTER1_CRC_OK) {
#endif /* RF230_CONF_CHECKSUM */
// rf230_last_rssi = footer[0];
rf230_last_rssi = hal_subregister_read(SR_RSSI);
// rf230_last_correlation = footer[1] & FOOTER1_CORRELATION;
rf230_last_correlation = rxframe.lqi;
packetbuf_set_attr(PACKETBUF_ATTR_RSSI, rf230_last_rssi);
packetbuf_set_attr(PACKETBUF_ATTR_LINK_QUALITY, rf230_last_correlation);
RIMESTATS_ADD(llrx);
#if RF230_CONF_TIMESTAMPS
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 {
RIMESTATS_ADD(badcrc);
len = AUX_LEN;
}
/* Clean up in case of FIFO overflow! This happens for every full
* length frame and is signaled by FIFOP = 1 and FIFO = 0.
*/
// if(FIFOP_IS_1 && !FIFO_IS_1) {
/* printf("rf230_read: FIFOP_IS_1 1\n");*/
// flushrx();
// } else if(FIFOP_IS_1) {
/* Another packet has been received and needs attention. */
/* printf("attention\n");*/
// process_poll(&rf230_process);
// }
RELEASE_LOCK();
if(len < AUX_LEN) {
return 0;
}
return len - AUX_LEN;
}
/*---------------------------------------------------------------------------*/
void
rf230_set_txpower(uint8_t power)
{
GET_LOCK();
set_txpower(power);
RELEASE_LOCK();
}
/*---------------------------------------------------------------------------*/
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;
}
/*---------------------------------------------------------------------------*/
static int
rf230_cca(void)
{
int cca;
int radio_was_off = 0;
/* If the radio is locked by an underlying thread (because we are
being invoked through an interrupt), we preted that the coast is
clear (i.e., no packet is currently being transmitted by a
neighbor). */
if(locked) {
return 1;
}
if(!receive_on) {
radio_was_off = 1;
rf230_on();
}
// cca = CCA_IS_1;
cca=0;
if(radio_was_off) {
rf230_off();
}
return cca;
}
/*---------------------------------------------------------------------------*/
int
rf230_receiving_packet(void)
{
return (hal_subregister_read(SR_TRX_STATUS)==BUSY_RX);
}
/*---------------------------------------------------------------------------*/
static int
pending_packet(void)
{
return pending;
}
/*---------------------------------------------------------------------------*/
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