Skip to content

Commit

Permalink
fixup! nrf52840: add radio hal implementation
Browse files Browse the repository at this point in the history
  • Loading branch information
@jia200x
jia200x committed Sep 9, 2020
1 parent b26a79e commit 8358bb6
Showing 1 changed file with 124 additions and 106 deletions.
230 changes: 124 additions & 106 deletions cpu/nrf52/radio/nrf802154/nrf802154_radio.c
View file
Original file line number Diff line number Diff line change
@@ -1,3 +1,21 @@
/*
* Copyright (C) 2020 HAW Hamburg
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/

/**
* @ingroup drivers_nrf52_802154
* @{
*
* @file
* @brief Implementation of the IEEE 802.15.4 for nRF52 radios
*
* @author José I. Alamos <jose.alamos@haw-hamburg.de>
* @}
*/
#include <string.h>
#include <errno.h>

Expand Down Expand Up @@ -229,14 +247,14 @@ static int _confirm_cca(ieee802154_dev_t *dev)
(void) dev;
int res;
switch (_state) {
case STATE_CCA_CLEAR:
res = true;
break;
case STATE_CCA_BUSY:
res = false;
break;
default:
res = -EAGAIN;
case STATE_CCA_CLEAR:
res = true;
break;
case STATE_CCA_BUSY:
res = false;
break;
default:
res = -EAGAIN;
}

_state = STATE_RX;
Expand Down Expand Up @@ -363,18 +381,18 @@ static int _request_set_trx_state(ieee802154_dev_t *dev, ieee802154_trx_state_t
while (NRF_RADIO->STATE != RADIO_STATE_STATE_Disabled);

switch(state) {
case IEEE802154_TRX_STATE_TRX_OFF:
_state = STATE_IDLE;
break;
case IEEE802154_TRX_STATE_RX_ON:
NRF_RADIO->PACKETPTR = (uint32_t)rxbuf;
NRF_RADIO->TASKS_RXEN = 1;
_state = STATE_RX;
break;
case IEEE802154_TRX_STATE_TX_ON:
NRF_RADIO->PACKETPTR = (uint32_t)txbuf;
_state = STATE_IDLE;
break;
case IEEE802154_TRX_STATE_TRX_OFF:
_state = STATE_IDLE;
break;
case IEEE802154_TRX_STATE_RX_ON:
NRF_RADIO->PACKETPTR = (uint32_t)rxbuf;
NRF_RADIO->TASKS_RXEN = 1;
_state = STATE_RX;
break;
case IEEE802154_TRX_STATE_TX_ON:
NRF_RADIO->PACKETPTR = (uint32_t)txbuf;
_state = STATE_IDLE;
break;
}

return 0;
Expand Down Expand Up @@ -476,7 +494,7 @@ void isr_radio(void)

if (NRF_RADIO->EVENTS_CCABUSY) {
NRF_RADIO->EVENTS_CCABUSY = 0;
if (_state == STATE_TX) {
if (_state == STATE_TX) {
_state = STATE_CCA_BUSY;
dev->cb(dev, IEEE802154_RADIO_CONFIRM_TX_DONE);
}
Expand All @@ -490,65 +508,65 @@ void isr_radio(void)
NRF_RADIO->EVENTS_END = 0;

switch (_state) {
case STATE_TX:
DEBUG("[nrf802154] TX state: %x\n", (uint8_t)NRF_RADIO->STATE);

_set_ifs_timer(txbuf[0] > SIFS_MAXPKTSIZE);
_state = STATE_IDLE;
dev->cb(dev, IEEE802154_RADIO_CONFIRM_TX_DONE);
break;
case STATE_RX:
if (NRF_RADIO->CRCSTATUS) {
bool l2filter_passed = _l2filter(rxbuf+1);
bool is_auto_ack_en = ack[1];
bool is_ack = rxbuf[1] & IEEE802154_FCF_TYPE_ACK;
bool ack_req = rxbuf[1] & IEEE802154_FCF_ACK_REQ;

/* If radio is in promiscuos mode, indicate packet and
* don't event think of sending an ACK frame :) */
if (cfg.promisc) {
dev->cb(dev, IEEE802154_RADIO_INDICATION_RX_DONE);
}
/* If the L2 filter passes, device if the frame is indicated
* directly or if the driver should send an ACK frame before
* the indication */
else if (l2filter_passed) {
if (ack_req && is_auto_ack_en) {
timer_set(NRF802154_TIMER, MAC_TIMER_CHAN_ACK, SIFS);
timer_start(NRF802154_TIMER);
_disable();
_state = STATE_ACK;
}
else {
dev->cb(dev, IEEE802154_RADIO_INDICATION_RX_DONE);
}
}
/* In case the packet is an ACK and the ACK filter is disabled,
* indicate the frame reception */
else if (is_ack && !cfg.ack_filter) {
dev->cb(dev, IEEE802154_RADIO_INDICATION_RX_DONE);
case STATE_TX:
DEBUG("[nrf802154] TX state: %x\n", (uint8_t)NRF_RADIO->STATE);

_set_ifs_timer(txbuf[0] > SIFS_MAXPKTSIZE);
_state = STATE_IDLE;
dev->cb(dev, IEEE802154_RADIO_CONFIRM_TX_DONE);
break;
case STATE_RX:
if (NRF_RADIO->CRCSTATUS) {
bool l2filter_passed = _l2filter(rxbuf+1);
bool is_auto_ack_en = ack[1];
bool is_ack = rxbuf[1] & IEEE802154_FCF_TYPE_ACK;
bool ack_req = rxbuf[1] & IEEE802154_FCF_ACK_REQ;

/* If radio is in promiscuos mode, indicate packet and
* don't event think of sending an ACK frame :) */
if (cfg.promisc) {
dev->cb(dev, IEEE802154_RADIO_INDICATION_RX_DONE);
}
/* If the L2 filter passes, device if the frame is indicated
* directly or if the driver should send an ACK frame before
* the indication */
else if (l2filter_passed) {
if (ack_req && is_auto_ack_en) {
timer_set(NRF802154_TIMER, MAC_TIMER_CHAN_ACK, SIFS);
timer_start(NRF802154_TIMER);
_disable();
_state = STATE_ACK;
}
/* If all failed, simply drop the frame and continue listening
* to incoming frames */
else {
NRF_RADIO->TASKS_START = 1;
dev->cb(dev, IEEE802154_RADIO_INDICATION_RX_DONE);
}
}
/* In case the packet is an ACK and the ACK filter is disabled,
* indicate the frame reception */
else if (is_ack && !cfg.ack_filter) {
dev->cb(dev, IEEE802154_RADIO_INDICATION_RX_DONE);
}
/* If all failed, simply drop the frame and continue listening
* to incoming frames */
else {
NRF_RADIO->TASKS_START = 1;
}
break;
case STATE_ACK:
_state = STATE_RX;
NRF_RADIO->PACKETPTR = (uint32_t) rxbuf;
_disable();
/* This will take around 0.5 us */
while(NRF_RADIO->STATE != RADIO_STATE_STATE_Disabled);
NRF_RADIO->TASKS_RXEN = 1;
_set_ifs_timer(false);
break;
default:
assert(false);
}
else {
NRF_RADIO->TASKS_START = 1;
}
break;
case STATE_ACK:
_state = STATE_RX;
NRF_RADIO->PACKETPTR = (uint32_t) rxbuf;
_disable();
/* This will take around 0.5 us */
while(NRF_RADIO->STATE != RADIO_STATE_STATE_Disabled);
NRF_RADIO->TASKS_RXEN = 1;
_set_ifs_timer(false);
break;
default:
assert(false);
}
}

Expand Down Expand Up @@ -594,12 +612,12 @@ static bool _get_cap(ieee802154_dev_t *dev, ieee802154_rf_caps_t cap)
{
(void) dev;
switch (cap) {
case IEEE802154_CAP_24_GHZ:
case IEEE802154_CAP_IRQ_TX_DONE:
case IEEE802154_CAP_IRQ_CCA_DONE:
return true;
default:
return false;
case IEEE802154_CAP_24_GHZ:
case IEEE802154_CAP_IRQ_TX_DONE:
case IEEE802154_CAP_IRQ_CCA_DONE:
return true;
default:
return false;
}
}

Expand All @@ -617,18 +635,18 @@ int _set_cca_mode(ieee802154_dev_t *dev, ieee802154_cca_mode_t mode)
uint8_t tmp = 0;

switch (mode) {
case IEEE802154_CCA_MODE_ED_THRESHOLD:
tmp = RADIO_CCACTRL_CCAMODE_EdMode;
break;
case IEEE802154_CCA_MODE_CARRIER_SENSING:
tmp = RADIO_CCACTRL_CCAMODE_CarrierOrEdMode;
break;
case IEEE802154_CCA_MODE_ED_THRESH_AND_CS:
tmp = RADIO_CCACTRL_CCAMODE_CarrierAndEdMode;
break;
case IEEE802154_CCA_MODE_ED_THRESH_OR_CS:
tmp = RADIO_CCACTRL_CCAMODE_CarrierOrEdMode;
break;
case IEEE802154_CCA_MODE_ED_THRESHOLD:
tmp = RADIO_CCACTRL_CCAMODE_EdMode;
break;
case IEEE802154_CCA_MODE_CARRIER_SENSING:
tmp = RADIO_CCACTRL_CCAMODE_CarrierOrEdMode;
break;
case IEEE802154_CCA_MODE_ED_THRESH_AND_CS:
tmp = RADIO_CCACTRL_CCAMODE_CarrierAndEdMode;
break;
case IEEE802154_CCA_MODE_ED_THRESH_OR_CS:
tmp = RADIO_CCACTRL_CCAMODE_CarrierOrEdMode;
break;
}

NRF_RADIO->CCACTRL |= tmp;
Expand Down Expand Up @@ -661,21 +679,21 @@ static int _set_rx_mode(ieee802154_dev_t *dev, ieee802154_rx_mode_t mode)
bool ackf = true;
bool _promisc = false;
switch (mode) {
case IEEE802154_RX_AACK_DISABLED:
ack[1] = 0;
break;
case IEEE802154_RX_AACK_ENABLED:
ack[1] = IEEE802154_FCF_TYPE_ACK;
break;
case IEEE802154_RX_AACK_FRAME_PENDING:
ack[1] = IEEE802154_FCF_TYPE_ACK | IEEE802154_FCF_FRAME_PEND;
break;
case IEEE802154_RX_PROMISC:
_promisc = true;
break;
case IEEE802154_RX_WAIT_FOR_ACK:
ackf = false;
break;
case IEEE802154_RX_AACK_DISABLED:
ack[1] = 0;
break;
case IEEE802154_RX_AACK_ENABLED:
ack[1] = IEEE802154_FCF_TYPE_ACK;
break;
case IEEE802154_RX_AACK_FRAME_PENDING:
ack[1] = IEEE802154_FCF_TYPE_ACK | IEEE802154_FCF_FRAME_PEND;
break;
case IEEE802154_RX_PROMISC:
_promisc = true;
break;
case IEEE802154_RX_WAIT_FOR_ACK:
ackf = false;
break;
}

cfg.ack_filter = ackf;
Expand Down

0 comments on commit 8358bb6

Please sign in to comment.