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drivers: nrf5: fixes for the CSL Receiver

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Introduce fixes for making the CSL Receiver to properly schedule
the reception window.

Signed-off-by: Eduardo Montoya <eduardo.montoya@nordicsemi.no>
This commit is contained in:
Eduardo Montoya 2021-09-15 08:36:02 +02:00 • committed by Carles Cufí
commit f397e9b6c2
1 changed files with 13 additions and 7 deletions
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20
drivers/ieee802154/ieee802154_nrf5.c
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@ -61,7 +61,12 @@ static struct nrf5_802154_data nrf5_data;
#define DRX_SLOT_PH 0 /* Placeholder delayed reception window ID */
#define DRX_SLOT_RX 1 /* Actual delayed reception window ID */
#define PH_DURATION 10 /* Duration of the placeholder window, in microseconds */
#define PH_DURATION 10 /* Duration of the placeholder window, in microseconds */
/* When scheduling the actual delayed reception window an adjustment of
* 800 us is required to match the CSL tranmission timing for unknown
* reasons. This is a temporary workaround until the root cause is found.
*/
#define DRX_ADJUST 800
#if defined(CONFIG_IEEE802154_NRF5_UICR_EUI64_ENABLE)
#if defined(CONFIG_SOC_NRF5340_CPUAPP)
@ -755,7 +760,7 @@ static void nrf5_config_csl_period(uint16_t period)
static void nrf5_schedule_rx(uint8_t channel, uint32_t start, uint32_t duration)
{
nrf5_receive_at(start, duration, channel, DRX_SLOT_RX);
nrf5_receive_at(start - DRX_ADJUST, duration, channel, DRX_SLOT_RX);
/* The placeholder reception window is rescheduled for the next period */
nrf_802154_receive_at_cancel(DRX_SLOT_PH);
@ -888,8 +893,7 @@ static int nrf5_configure(const struct device *dev,
/* nRF5 radio driver callbacks */
void nrf_802154_received_timestamp_raw(uint8_t *data, int8_t power, uint8_t lqi,
uint32_t time)
void nrf_802154_received_timestamp_raw(uint8_t *data, int8_t power, uint8_t lqi, uint32_t time)
{
for (uint32_t i = 0; i < ARRAY_SIZE(nrf5_data.rx_frames); i++) {
if (nrf5_data.rx_frames[i].psdu != NULL) {
@ -897,13 +901,15 @@ void nrf_802154_received_timestamp_raw(uint8_t *data, int8_t power, uint8_t lqi,
}
nrf5_data.rx_frames[i].psdu = data;
nrf5_data.rx_frames[i].time = time;
nrf5_data.rx_frames[i].rssi = power;
nrf5_data.rx_frames[i].lqi = lqi;
#if !defined(CONFIG_NRF_802154_SER_HOST) && defined(CONFIG_NET_PKT_TIMESTAMP)
nrf5_data.rx_frames[i].time = nrf_802154_first_symbol_timestamp_get(time, data[0]);
#endif
if (data[ACK_REQUEST_BYTE] & ACK_REQUEST_BIT) {
nrf5_data.rx_frames[i].ack_fpb =
nrf5_data.last_frame_ack_fpb;
nrf5_data.rx_frames[i].ack_fpb = nrf5_data.last_frame_ack_fpb;
} else {
nrf5_data.rx_frames[i].ack_fpb = false;
}