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cc2538/cc2538_rf_radio_ops: add TX/RX_START

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This commit is contained in:
Francisco Molina 2020-09-30 11:30:50 +02:00
parent c756fa5e78
commit 0175abc8e5
No known key found for this signature in database
GPG Key ID: 3E94EAC3DBDEEDA8
2 changed files with 34 additions and 3 deletions
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6
cpu/cc2538/radio/cc2538_rf.c
View File

@ -65,9 +65,11 @@ static const init_pair_t init_table[] = {
{&RFCORE_XREG_FRMCTRL1, 0x00 },
{&RFCORE_XREG_SRCMATCH, 0x00 },
{&RFCORE_XREG_FIFOPCTRL, CC2538_RF_MAX_DATA_LEN },
{&RFCORE_XREG_RFIRQM0, FIFOP | RXPKTDONE },
#if IS_USED(MODULE_IEEE802154_RADIO_HAL)
{&RFCORE_XREG_RFIRQM1, TXDONE | CSP_STOP },
{&RFCORE_XREG_RFIRQM0, FIFOP | RXPKTDONE | SFD },
{&RFCORE_XREG_RFIRQM1, TXDONE | CSP_STOP | TXACKDONE },
#else
{&RFCORE_XREG_RFIRQM0, FIFOP | RXPKTDONE },
#endif
{&RFCORE_XREG_RFERRM, STROBE_ERR | TXUNDERF | TXOVERF | RXUNDERF | RXOVERF | NLOCK},
{NULL, 0},

31
cpu/cc2538/radio/cc2538_rf_radio_ops.c
View File

@ -43,6 +43,8 @@ static bool cc2538_cca_status; /**< status of the last CCA request */
static bool cc2538_cca; /**< used to check whether the last CCA result
corresponds to a CCA request or send with
CSMA-CA */
static bool cc2538_sfd_listen; /**< used to check whether we should ignore
the SFD flag */
static int _write(ieee802154_dev_t *dev, const iolist_t *iolist)
{
@ -314,22 +316,45 @@ void cc2538_irq_handler(void)
RFCORE_SFR_RFIRQF0 = 0;
RFCORE_SFR_RFIRQF1 = 0;
if ((flags_f0 & SFD) && cc2538_sfd_listen) {
if (RFCORE->XREG_FSMSTAT1bits.TX_ACTIVE) {
cc2538_rf_dev.cb(&cc2538_rf_dev, IEEE802154_RADIO_INDICATION_TX_START);
}
}
if (flags_f1 & TXDONE) {
cc2538_rf_dev.cb(&cc2538_rf_dev, IEEE802154_RADIO_CONFIRM_TX_DONE);
}
if ((flags_f0 & SFD) && cc2538_sfd_listen) {
if (RFCORE->XREG_FSMSTAT1bits.RX_ACTIVE) {
cc2538_rf_dev.cb(&cc2538_rf_dev, IEEE802154_RADIO_INDICATION_RX_START);
}
}
if (flags_f0 & RXPKTDONE) {
/* CRC check */
uint8_t pkt_len = rfcore_peek_rx_fifo(0);
if (rfcore_peek_rx_fifo(pkt_len) & CC2538_CRC_BIT_MASK) {
RFCORE_XREG_RFIRQM0 &= RXPKTDONE;
/* Disable RX while the frame has not been processed */
RFCORE_XREG_RXMASKCLR = 0xFF;
/* If AUTOACK is enabled and the ACK request bit is set */
if (RFCORE->XREG_FRMCTRL0bits.AUTOACK &&
(rfcore_peek_rx_fifo(1) & IEEE802154_FCF_ACK_REQ)) {
/* The next SFD will be the ACK's, ignore it */
cc2538_sfd_listen = false;
}
cc2538_rf_dev.cb(&cc2538_rf_dev, IEEE802154_RADIO_INDICATION_RX_DONE);
}
else {
/* CRC failed; discard packet */
RFCORE_SFR_RFST = ISFLUSHRX;
}
}
/* Re-Enable SFD ISR after ACK is received */
if (flags_f1 & TXACKDONE) {
cc2538_sfd_listen = true;
}
/* Check if the interrupt was triggered because the CSP finished its routine
@ -367,6 +392,8 @@ static bool _get_cap(ieee802154_dev_t *dev, ieee802154_rf_caps_t cap)
case IEEE802154_CAP_24_GHZ:
case IEEE802154_CAP_IRQ_TX_DONE:
case IEEE802154_CAP_IRQ_CCA_DONE:
case IEEE802154_CAP_IRQ_RX_START:
case IEEE802154_CAP_IRQ_TX_START:
case IEEE802154_CAP_AUTO_CSMA:
return true;
default:
@ -413,6 +440,8 @@ static int _request_on(ieee802154_dev_t *dev)
{
(void) dev;
/* TODO */
/* when turned on listen for SFD interrupts */
cc2538_sfd_listen = true;
return 0;
}