48 #include "sys/clock.h" 51 #include "dev/watchdog.h" 54 #include <ti/devices/DeviceFamily.h> 55 #include DeviceFamily_constructPath(driverlib/rf_mailbox.h) 56 #include DeviceFamily_constructPath(driverlib/rf_common_cmd.h) 57 #include DeviceFamily_constructPath(driverlib/rf_data_entry.h) 58 #include DeviceFamily_constructPath(driverlib/rf_prop_cmd.h) 59 #include DeviceFamily_constructPath(driverlib/rf_prop_mailbox.h) 61 #include <ti/drivers/rf/RF.h> 79 #define LOG_MODULE "Radio" 80 #define LOG_LEVEL LOG_LEVEL_NONE 83 #define CLAMP(v, vmin, vmax) (MAX(MIN(v, vmax), vmin)) 86 #define PROP_MODE_DYN_WHITENER PROP_MODE_CONF_DW 87 #define PROP_MODE_USE_CRC16 PROP_MODE_CONF_USE_CRC16 88 #define PROP_MODE_CENTER_FREQ PROP_MODE_CONF_CENTER_FREQ 89 #define PROP_MODE_LO_DIVIDER PROP_MODE_CONF_LO_DIVIDER 90 #define PROP_MODE_CCA_RSSI_THRESHOLD PROP_MODE_CONF_CCA_RSSI_THRESHOLD 100 #define DOT_4G_MAX_FRAME_LEN 2047 101 #define DOT_4G_PHR_NUM_BYTES 2 102 #define DOT_4G_LEN_OFFSET 0xFC 103 #define DOT_4G_SYNCWORD 0x0055904E 106 #define DOT_4G_PHR_CRC16 0x10 107 #define DOT_4G_PHR_DW 0x08 109 #if PROP_MODE_USE_CRC16 111 #define DOT_4G_PHR_CRC_BIT DOT_4G_PHR_CRC16 115 #define DOT_4G_PHR_CRC_BIT 0 119 #if PROP_MODE_DYN_WHITENER 120 #define DOT_4G_PHR_DW_BIT DOT_4G_PHR_DW 122 #define DOT_4G_PHR_DW_BIT 0 141 #define MAX_PAYLOAD_LEN 125 144 #define TIMEOUT_ENTER_RX_WAIT (RTIMER_SECOND >> 10) 147 #define TIMEOUT_DATA_ENTRY_BUSY (RTIMER_SECOND / 250) 150 #define TX_BUF_HDR_LEN 2 151 #define TX_BUF_PAYLOAD_LEN 180 153 #define TX_BUF_SIZE (TX_BUF_HDR_LEN + TX_BUF_PAYLOAD_LEN) 156 typedef uint16_t lensz_t;
158 #define FRAME_OFFSET sizeof(lensz_t) 159 #define FRAME_SHAVE 2 162 #define RX_SENSITIVITY_DBM -110 163 #define RX_SATURATION_DBM 10 164 #define ED_MIN_DBM_ABOVE_RX_SENSITIVITY 10 167 #define ED_RF_POWER_MIN_DBM (RX_SENSITIVITY_DBM + ED_MIN_DBM_ABOVE_RX_SENSITIVITY) 168 #define ED_RF_POWER_MAX_DBM RX_SATURATION_DBM 171 typedef rfc_propRxOutput_t rx_output_t;
175 uint8_t tx_buf[TX_BUF_SIZE] CC_ALIGN(4);
178 rx_output_t rx_stats;
181 int8_t rssi_threshold;
191 static prop_radio_t prop_radio;
194 #define cmd_radio_setup rf_cmd_prop_radio_div_setup 195 #define cmd_fs rf_cmd_prop_fs 196 #define cmd_tx rf_cmd_prop_tx_adv 197 #define cmd_rx rf_cmd_prop_rx_adv 200 #define v_cmd_radio_setup CC_ACCESS_NOW(rfc_CMD_PROP_RADIO_DIV_SETUP_t, rf_cmd_prop_radio_div_setup) 201 #define v_cmd_fs CC_ACCESS_NOW(rfc_CMD_FS_t, rf_cmd_prop_fs) 202 #define v_cmd_tx CC_ACCESS_NOW(rfc_CMD_PROP_TX_ADV_t, rf_cmd_prop_tx_adv) 203 #define v_cmd_rx CC_ACCESS_NOW(rfc_CMD_PROP_RX_ADV_t, rf_cmd_prop_rx_adv) 208 return v_cmd_tx.status == ACTIVE;
214 return v_cmd_rx.status == ACTIVE;
218 static int off(
void);
223 cmd_radio_setup.config.frontEndMode = RF_SUB_1_GHZ_FRONT_END_MODE;
224 cmd_radio_setup.config.biasMode = RF_SUB_1_GHZ_BIAS_MODE;
225 cmd_radio_setup.centerFreq = PROP_MODE_CENTER_FREQ;
226 cmd_radio_setup.loDivider = PROP_MODE_LO_DIVIDER;
228 cmd_tx.numHdrBits = DOT_4G_PHR_NUM_BYTES * 8;
229 cmd_tx.syncWord = DOT_4G_SYNCWORD;
231 cmd_rx.syncWord0 = DOT_4G_SYNCWORD;
232 cmd_rx.syncWord1 = 0x00000000;
233 cmd_rx.maxPktLen = DOT_4G_MAX_FRAME_LEN - DOT_4G_LEN_OFFSET;
234 cmd_rx.hdrConf.numHdrBits = DOT_4G_PHR_NUM_BYTES * 8;
235 cmd_rx.lenOffset = DOT_4G_LEN_OFFSET;
236 cmd_rx.pQueue = data_queue_init(
sizeof(lensz_t));
237 cmd_rx.pOutput = (uint8_t *)&prop_radio.rx_stats;
244 bool stop_rx =
false;
245 int8_t rssi = RF_GET_RSSI_ERROR_VAL;
248 if(!rx_is_active()) {
250 if(v_cmd_rx.status != PENDING) {
251 res = netstack_sched_rx(
false);
252 if(res != RF_RESULT_OK) {
253 LOG_ERR(
"RSSI measurement failed to schedule RX\n");
264 if(!rx_is_active()) {
265 LOG_ERR(
"RSSI measurement failed to turn on RX, RX status=0x%04X\n", v_cmd_rx.status);
266 return RF_RESULT_ERROR;
271 rssi = RF_getRssi(prop_radio.rf_handle);
283 uint32_t freq_khz = v_cmd_fs.frequency * 1000;
291 freq_khz += (((v_cmd_fs.fractFreq * 1000) + 65535) / 65536);
293 return (uint8_t)((freq_khz - DOT_15_4G_CHAN0_FREQ) / DOT_15_4G_FREQ_SPACING);
301 if(!dot_15_4g_chan_in_range(channel)) {
302 LOG_WARN(
"Supplied hannel %d is illegal, defaults to %d\n",
303 (
int)channel, DOT_15_4G_DEFAULT_CHAN);
304 channel = DOT_15_4G_DEFAULT_CHAN;
307 if(channel == prop_radio.channel) {
312 const uint32_t new_freq = dot_15_4g_freq(channel);
313 const uint16_t freq = (uint16_t)(new_freq / 1000);
314 const uint16_t frac = (uint16_t)(((new_freq - (freq * 1000)) * 0x10000) / 1000);
316 LOG_DBG(
"Set channel to %d, frequency 0x%04X.0x%04X (%lu)\n",
317 (
int)channel, freq, frac, new_freq);
319 v_cmd_fs.frequency = freq;
320 v_cmd_fs.fractFreq = frac;
322 res = netstack_sched_fs();
324 if(res != RF_RESULT_OK) {
328 prop_radio.channel = channel;
333 calculate_lqi(int8_t rssi)
340 rssi = CLAMP(rssi, ED_RF_POWER_MIN_DBM, ED_RF_POWER_MAX_DBM);
348 return (ED_MAX * (rssi - ED_RF_POWER_MIN_DBM)) / (ED_RF_POWER_MAX_DBM - ED_RF_POWER_MIN_DBM);
352 prepare(
const void *payload,
unsigned short payload_len)
354 if(payload_len > TX_BUF_PAYLOAD_LEN || payload_len > MAX_PAYLOAD_LEN) {
358 memcpy(prop_radio.tx_buf + TX_BUF_HDR_LEN, payload, payload_len);
363 transmit(
unsigned short transmit_len)
367 if(transmit_len > MAX_PAYLOAD_LEN) {
368 LOG_ERR(
"Too long\n");
373 LOG_ERR(
"A transmission is already active\n");
378 const uint16_t total_length = transmit_len + CRC_LEN;
387 prop_radio.tx_buf[0] = ((total_length >> 0) & 0xFF);
388 prop_radio.tx_buf[1] = ((total_length >> 8) & 0xFF) + DOT_4G_PHR_DW_BIT + DOT_4G_PHR_CRC_BIT;
392 v_cmd_tx.pktLen = transmit_len + DOT_4G_PHR_NUM_BYTES;
393 v_cmd_tx.pPkt = prop_radio.tx_buf;
395 res = netstack_sched_prop_tx();
397 return (res == RF_RESULT_OK)
403 send(
const void *payload,
unsigned short payload_len)
410 read(
void *buf,
unsigned short buf_len)
412 volatile data_entry_t *data_entry = data_queue_current_entry();
416 while((data_entry->status == DATA_ENTRY_BUSY) &&
417 RTIMER_CLOCK_LT(
RTIMER_NOW(), t0 + TIMEOUT_DATA_ENTRY_BUSY)) ;
419 if(data_entry->status != DATA_ENTRY_FINISHED) {
445 uint8_t *
const frame_ptr = (uint8_t *)&data_entry->data;
446 const lensz_t frame_len = *(lensz_t *)frame_ptr;
450 LOG_ERR(
"Received rame is too short, len=%d\n", frame_len);
452 data_queue_release_entry();
456 const uint8_t *payload_ptr = frame_ptr +
sizeof(lensz_t);
457 const unsigned short payload_len = (
unsigned short)(frame_len -
FRAME_SHAVE);
460 if(payload_len > buf_len) {
461 LOG_ERR(
"Payload of received frame is too large for local buffer, len=%d buf_len=%d\n",
462 payload_len, buf_len);
464 data_queue_release_entry();
468 memcpy(buf, payload_ptr, payload_len);
471 const int8_t rssi = (int8_t)payload_ptr[payload_len];
473 const uint8_t lqi = calculate_lqi(rssi);
475 packetbuf_set_attr(PACKETBUF_ATTR_RSSI, (packetbuf_attr_t)rssi);
476 packetbuf_set_attr(PACKETBUF_ATTR_LINK_QUALITY, (packetbuf_attr_t)lqi);
478 data_queue_release_entry();
479 return (
int)payload_len;
485 const int8_t rssi = get_rssi();
487 if(rssi == RF_GET_RSSI_ERROR_VAL) {
488 return CCA_STATE_INVALID;
491 return (rssi < prop_radio.rssi_threshold)
500 LOG_ERR(
"Channel clear called while in TX\n");
504 const uint8_t cca_state = cca_request();
507 return cca_state == CCA_STATE_IDLE;
513 if(!rx_is_active()) {
517 const uint8_t cca_state = cca_request();
519 return cca_state == CCA_STATE_BUSY;
525 const data_entry_t *
const read_entry = data_queue_current_entry();
526 volatile const data_entry_t *curr_entry = read_entry;
532 const uint8_t status = curr_entry->status;
533 if((status == DATA_ENTRY_FINISHED) ||
534 (status == DATA_ENTRY_BUSY)) {
539 curr_entry = (data_entry_t *)curr_entry->pNextEntry;
540 }
while(curr_entry != read_entry);
542 if(num_pending > 0) {
555 if(prop_radio.rf_is_on) {
556 LOG_WARN(
"Radio is already on\n");
562 res = netstack_sched_rx(
true);
564 if(res != RF_RESULT_OK) {
565 return RF_RESULT_ERROR;
568 prop_radio.rf_is_on =
true;
575 if(!prop_radio.rf_is_on) {
576 LOG_WARN(
"Radio is already off\n");
582 prop_radio.rf_is_on =
false;
586 static radio_result_t
592 return RADIO_RESULT_INVALID_VALUE;
596 case RADIO_PARAM_POWER_MODE:
598 *value = (prop_radio.rf_is_on)
599 ? RADIO_POWER_MODE_ON
600 : RADIO_POWER_MODE_OFF;
602 return RADIO_RESULT_OK;
604 case RADIO_PARAM_CHANNEL:
606 return RADIO_RESULT_OK;
608 case RADIO_PARAM_TXPOWER:
609 res = rf_get_tx_power(prop_radio.rf_handle, rf_tx_power_table, (int8_t *)&value);
610 return ((res == RF_RESULT_OK) &&
611 (*value != RF_TxPowerTable_INVALID_DBM))
613 : RADIO_RESULT_ERROR;
615 case RADIO_PARAM_CCA_THRESHOLD:
616 *value = prop_radio.rssi_threshold;
617 return RADIO_RESULT_OK;
619 case RADIO_PARAM_RSSI:
621 return (*value == RF_GET_RSSI_ERROR_VAL)
625 case RADIO_CONST_CHANNEL_MIN:
626 *value = DOT_15_4G_CHAN_MIN;
627 return RADIO_RESULT_OK;
629 case RADIO_CONST_CHANNEL_MAX:
630 *value = DOT_15_4G_CHAN_MAX;
631 return RADIO_RESULT_OK;
633 case RADIO_CONST_TXPOWER_MIN:
635 return RADIO_RESULT_OK;
637 case RADIO_CONST_TXPOWER_MAX:
638 *value = (
radio_value_t)tx_power_max(rf_tx_power_table, rf_tx_power_table_size);
639 return RADIO_RESULT_OK;
641 case RADIO_CONST_MAX_PAYLOAD_LEN:
643 return RADIO_RESULT_OK;
646 return RADIO_RESULT_NOT_SUPPORTED;
650 static radio_result_t
656 case RADIO_PARAM_POWER_MODE:
658 if(value == RADIO_POWER_MODE_ON) {
659 return (
on() == RF_RESULT_OK)
661 : RADIO_RESULT_ERROR;
662 }
else if(value == RADIO_POWER_MODE_OFF) {
664 return RADIO_RESULT_OK;
667 return RADIO_RESULT_INVALID_VALUE;
669 case RADIO_PARAM_CHANNEL:
671 return (res == RF_RESULT_OK)
673 : RADIO_RESULT_ERROR;
675 case RADIO_PARAM_TXPOWER:
676 if(!tx_power_in_range((int8_t)value, rf_tx_power_table, rf_tx_power_table_size)) {
677 return RADIO_RESULT_INVALID_VALUE;
679 res = rf_set_tx_power(prop_radio.rf_handle, rf_tx_power_table, (int8_t)value);
680 return (res == RF_RESULT_OK)
682 : RADIO_RESULT_ERROR;
684 case RADIO_PARAM_RX_MODE:
685 return RADIO_RESULT_OK;
687 case RADIO_PARAM_CCA_THRESHOLD:
688 prop_radio.rssi_threshold = (int8_t)value;
689 return RADIO_RESULT_OK;
692 return RADIO_RESULT_NOT_SUPPORTED;
696 static radio_result_t
697 get_object(radio_param_t param,
void *dest,
size_t size)
699 return RADIO_RESULT_NOT_SUPPORTED;
702 static radio_result_t
703 set_object(radio_param_t param,
const void *src,
size_t size)
705 return RADIO_RESULT_NOT_SUPPORTED;
712 RF_TxPowerTable_Value tx_power_value;
715 if(prop_radio.rf_handle) {
716 LOG_WARN(
"Radio is already initialized\n");
721 prop_radio.rf_is_on =
false;
724 prop_radio.rssi_threshold = PROP_MODE_CCA_RSSI_THRESHOLD;
729 RF_Params_init(&rf_params);
733 prop_radio.rf_handle = netstack_open(&rf_params);
735 if(prop_radio.rf_handle == NULL) {
736 LOG_ERR(
"Unable to open RF driver during initialization\n");
737 return RF_RESULT_ERROR;
742 tx_power_value = RF_TxPowerTable_findValue(rf_tx_power_table, RF_TXPOWER_DBM);
743 if(tx_power_value.rawValue != RF_TxPowerTable_INVALID_VALUE) {
744 rf_stat = RF_setTxPower(prop_radio.rf_handle, tx_power_value);
745 if(rf_stat == RF_StatSuccess) {
746 LOG_INFO(
"TX power configured to %d dBm\n", RF_TXPOWER_DBM);
748 LOG_WARN(
"Setting TX power to %d dBm failed, stat=0x%02X", RF_TXPOWER_DBM, rf_stat);
751 LOG_WARN(
"Unable to find TX power %d dBm in the TX power table\n", RF_TXPOWER_DBM);
754 ENERGEST_ON(ENERGEST_TYPE_LISTEN);
radio_result_t(* get_object)(radio_param_t param, void *dest, size_t size)
Get a radio parameter object.
Header file with descriptors for the various modes of operation defined in IEEE 802.15.4g.
int(* prepare)(const void *payload, unsigned short payload_len)
Prepare the radio with a packet to be sent.
Header file of TX power functionality of CC13xx/CC26xx.
static uint8_t rf_is_on(void)
Checks whether the RFC domain is accessible and the RFC is in IEEE RX.
#define FRAME_SHAVE
RSSI (1) + Status (1)
Header file for the energy estimation mechanism
int(* receiving_packet)(void)
Check if the radio driver is currently receiving a packet.
radio_result_t(* set_value)(radio_param_t param, radio_value_t value)
Set a radio parameter value.
int(* pending_packet)(void)
Check if the radio driver has just received a packet.
The structure of a device driver for a radio in Contiki.
#define RTIMER_BUSYWAIT_UNTIL(cond, max_time)
Busy-wait until a condition for at most max_time.
static void set_channel(uint8_t channel)
Set the current operating channel.
int(* channel_clear)(void)
Perform a Clear-Channel Assessment (CCA) to find out if there is a packet in the air or not...
int radio_value_t
Each radio has a set of parameters that designate the current configuration and state of the radio...
#define IEEE802154_DEFAULT_CHANNEL
The default channel for IEEE 802.15.4 networks.
#define RTIMER_NOW()
Get the current clock time.
Header file of the CC13xx/CC26xx RF scheduler.
int(* send)(const void *payload, unsigned short payload_len)
Prepare & transmit a packet.
int(* transmit)(unsigned short transmit_len)
Send the packet that has previously been prepared.
void process_poll(struct process *p)
Request a process to be polled.
int(* off)(void)
Turn the radio off.
#define RF_CONF_INACTIVITY_TIMEOUT
2 ms
Header file for the real-time timer module.
Header file of the CC13xx/CC26xx RF data queue.
Header file of RF settings for CC13xx/CC26xx.
int(* read)(void *buf, unsigned short buf_len)
Read a received packet into a buffer.
Header file of common CC13xx/CC26xx RF functionality.
Header file for the Packet buffer (packetbuf) management
Include file for the Contiki low-layer network stack (NETSTACK)
radio_result_t(* get_value)(radio_param_t param, radio_value_t *value)
Get a radio parameter value.
Default definitions of C compiler quirk work-arounds.
Header file for the logging system
radio_result_t(* set_object)(radio_param_t param, const void *src, size_t size)
Set a radio parameter object.
int(* on)(void)
Turn the radio on.
void process_start(struct process *p, process_data_t data)
Start a process.
static uint8_t get_channel()
Get the current operating channel.