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ieee802154_mcxw.c
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/* ieee802154_mcxw.c - NXP MCXW 802.15.4 driver */
/*
* Copyright 2025 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT nxp_mcxw_ieee802154
#define LOG_MODULE_NAME ieee802154_mcxw
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(LOG_MODULE_NAME);
#include <zephyr/kernel.h>
#include <zephyr/arch/cpu.h>
#include <zephyr/debug/stack.h>
#include <zephyr/device.h>
#include <zephyr/drivers/counter.h>
#include <zephyr/init.h>
#include <zephyr/net/net_if.h>
#include <zephyr/net/net_pkt.h>
#if defined(CONFIG_NET_L2_OPENTHREAD)
#include <zephyr/net/openthread.h>
#include <zephyr/net/ieee802154_radio_openthread.h>
#endif
#include <zephyr/sys/byteorder.h>
#include <zephyr/random/random.h>
#include <zephyr/net/ieee802154_radio.h>
#include <soc.h>
#include <errno.h>
#include <string.h>
#include "EmbeddedTypes.h"
#include "Phy.h"
#include "fwk_platform_ot.h"
#include "ieee802154_mcxw.h"
#include "ieee802154_mcxw_utils.h"
void PLATFORM_RemoteActiveReq(void);
void PLATFORM_RemoteActiveRel(void);
#if CONFIG_IEEE802154_CSL_ENDPOINT
#define CMP_OVHD (4 * IEEE802154_SYMBOL_TIME_US) /* 2 LPTRM (32 kHz) ticks */
static bool_t csl_rx = FALSE;
static void set_csl_sample_time(void);
static void start_csl_receiver(void);
static void stop_csl_receiver(void);
static uint16_t rf_compute_csl_phase(uint32_t aTimeUs);
#else /* CONFIG_IEEE802154_CSL_ENDPOINT */
#define start_csl_receiver()
#define stop_csl_receiver()
#endif /* CONFIG_IEEE802154_CSL_ENDPOINT */
static volatile uint32_t sun_rx_mode = RX_ON_IDLE_START;
/* Private functions */
static void rf_abort(void);
static void rf_set_channel(uint8_t channel);
static void rf_set_tx_power(int8_t tx_power);
static uint64_t rf_adjust_tstamp_from_phy(uint64_t ts);
#if CONFIG_IEEE802154_CSL_ENDPOINT || CONFIG_NET_PKT_TXTIME
static uint32_t rf_adjust_tstamp_from_app(uint32_t time);
#endif /* CONFIG_IEEE802154_CSL_ENDPOINT || CONFIG_NET_PKT_TXTIME */
static void rf_rx_on_idle(uint32_t newValue);
static uint8_t ot_phy_ctx = (uint8_t)(-1);
static struct mcxw_context mcxw_ctx;
/**
* Stub function used for controlling low power mode
*/
WEAK void app_allow_device_to_slepp(void)
{
}
/**
* Stub function used for controlling low power mode
*/
WEAK void app_disallow_device_to_slepp(void)
{
}
void mcxw_get_eui64(uint8_t *eui64)
{
__ASSERT_NO_MSG(eui64);
/* PLATFORM_GetIeee802_15_4Addr(); */
sys_rand_get(eui64, sizeof(mcxw_ctx.mac));
eui64[0] = (eui64[0] & ~0x01) | 0x02;
}
static int mcxw_set_pan_id(const struct device *dev, uint16_t aPanId)
{
struct mcxw_context *mcxw_radio = dev->data;
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibPanId_c;
msg.msgData.setReq.PibAttributeValue = (uint64_t)aPanId;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
mcxw_radio->pan_id = aPanId;
return 0;
}
static int mcxw_set_extended_address(const struct device *dev, const uint8_t *ieee_addr)
{
struct mcxw_context *mcxw_radio = dev->data;
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibLongAddress_c;
msg.msgData.setReq.PibAttributeValue = *(uint64_t *)ieee_addr;
memcpy(mcxw_radio->mac, ieee_addr, 8);
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
return 0;
}
static int mcxw_set_short_address(const struct device *dev, uint16_t aShortAddress)
{
ARG_UNUSED(dev);
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibShortAddress_c;
msg.msgData.setReq.PibAttributeValue = (uint64_t)aShortAddress;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
return 0;
}
static int mcxw_filter(const struct device *dev, bool set, enum ieee802154_filter_type type,
const struct ieee802154_filter *filter)
{
LOG_DBG("Applying filter %u", type);
if (!set) {
return -ENOTSUP;
}
if (type == IEEE802154_FILTER_TYPE_IEEE_ADDR) {
return mcxw_set_extended_address(dev, filter->ieee_addr);
} else if (type == IEEE802154_FILTER_TYPE_SHORT_ADDR) {
return mcxw_set_short_address(dev, filter->short_addr);
} else if (type == IEEE802154_FILTER_TYPE_PAN_ID) {
return mcxw_set_pan_id(dev, filter->pan_id);
}
return -ENOTSUP;
}
void mcxw_radio_receive(void)
{
macToPlmeMessage_t msg;
phyStatus_t phy_status;
app_disallow_device_to_slepp();
__ASSERT(mcxw_ctx.state != RADIO_STATE_DISABLED, "Radio RX invalid state");
mcxw_ctx.state = RADIO_STATE_RECEIVE;
rf_abort();
rf_set_channel(mcxw_ctx.channel);
if (sun_rx_mode) {
start_csl_receiver();
/* restart Rx on idle only if it was enabled */
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibRxOnWhenIdle;
msg.msgData.setReq.PibAttributeValue = (uint64_t)1;
phy_status = MAC_PLME_SapHandler(&msg, ot_phy_ctx);
__ASSERT_NO_MSG(phy_status == gPhySuccess_c);
}
}
static uint8_t mcxw_get_acc(const struct device *dev)
{
ARG_UNUSED(dev);
return CONFIG_IEEE802154_MCXW_CSL_ACCURACY;
}
static int mcxw_start(const struct device *dev)
{
struct mcxw_context *mcxw_radio = dev->data;
__ASSERT(mcxw_radio->state == RADIO_STATE_DISABLED, "%s", __func__);
mcxw_radio->state = RADIO_STATE_SLEEP;
rf_rx_on_idle(RX_ON_IDLE_START);
mcxw_radio_receive();
return 0;
}
static int mcxw_stop(const struct device *dev)
{
struct mcxw_context *mcxw_radio = dev->data;
__ASSERT(mcxw_radio->state != RADIO_STATE_DISABLED, "%s", __func__);
stop_csl_receiver();
mcxw_radio->state = RADIO_STATE_DISABLED;
return 0;
}
void mcxw_radio_sleep(void)
{
__ASSERT_NO_MSG(((mcxw_ctx.state != RADIO_STATE_TRANSMIT) &&
(mcxw_ctx.state != RADIO_STATE_DISABLED)));
rf_abort();
stop_csl_receiver();
app_allow_device_to_slepp();
mcxw_ctx.state = RADIO_STATE_SLEEP;
}
static void mcxw_enable_src_match(bool enable)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetSAMState_c;
msg.msgData.SAMState = enable;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
static int mcxw_src_match_entry(bool extended, uint8_t *address)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeAddToSapTable_c;
msg.msgData.deviceAddr.panId = mcxw_ctx.pan_id;
if (extended) {
msg.msgData.deviceAddr.mode = 3;
memcpy(msg.msgData.deviceAddr.addr, address, 8);
} else {
msg.msgData.deviceAddr.mode = 2;
memcpy(msg.msgData.deviceAddr.addr, address, 2);
}
if (gPhySuccess_c != MAC_PLME_SapHandler(&msg, ot_phy_ctx)) {
/* the status is not returned from PHY over RPMSG */
return -ENOMEM;
}
return 0;
}
static int mcxw_src_clear_entry(bool extended, uint8_t *address)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeRemoveFromSAMTable_c;
msg.msgData.deviceAddr.panId = mcxw_ctx.pan_id;
if (extended) {
msg.msgData.deviceAddr.mode = 3;
memcpy(msg.msgData.deviceAddr.addr, address, 8);
} else {
msg.msgData.deviceAddr.mode = 2;
memcpy(msg.msgData.deviceAddr.addr, address, 2);
}
if (gPhySuccess_c != MAC_PLME_SapHandler(&msg, ot_phy_ctx)) {
/* the status is not returned from PHY over RPMSG */
return -ENOENT;
}
return 0;
}
static int handle_ack(struct mcxw_context *mcxw_radio)
{
uint8_t len;
struct net_pkt *pkt;
int err = 0;
len = mcxw_radio->rx_ack_frame.length;
pkt = net_pkt_rx_alloc_with_buffer(mcxw_radio->iface, len, AF_UNSPEC, 0, K_NO_WAIT);
if (!pkt) {
LOG_ERR("No free packet available.");
err = -ENOMEM;
goto exit;
}
if (net_pkt_write(pkt, mcxw_radio->rx_ack_frame.psdu, len) < 0) {
LOG_ERR("Failed to write to a packet.");
err = -ENOMEM;
goto free_ack;
}
/* Use some fake values for LQI and RSSI. */
net_pkt_set_ieee802154_lqi(pkt, 80);
net_pkt_set_ieee802154_rssi_dbm(pkt, -40);
net_pkt_set_timestamp_ns(pkt, mcxw_radio->rx_ack_frame.timestamp);
net_pkt_cursor_init(pkt);
if (ieee802154_handle_ack(mcxw_radio->iface, pkt) != NET_OK) {
LOG_ERR("ACK packet not handled - releasing.");
}
free_ack:
net_pkt_unref(pkt);
exit:
mcxw_radio->rx_ack_frame.length = 0;
return err;
}
static int mcxw_tx(const struct device *dev, enum ieee802154_tx_mode mode, struct net_pkt *pkt,
struct net_buf *frag)
{
struct mcxw_context *mcxw_radio = dev->data;
/* tx_data buffer has reserved memory for both macToPdDataMessage_t and actual data frame
* after
*/
macToPdDataMessage_t *msg = (macToPdDataMessage_t *)mcxw_radio->tx_data;
phyStatus_t phy_status;
uint8_t payload_len = frag->len;
uint8_t *payload = frag->data;
app_disallow_device_to_slepp();
__ASSERT(mcxw_radio->state != RADIO_STATE_DISABLED, "%s: radio disabled", __func__);
if (payload_len > IEEE802154_MTU) {
LOG_ERR("Payload too large: %d", payload_len);
return -EMSGSIZE;
}
mcxw_radio->tx_frame.length = payload_len + IEEE802154_FCS_LENGTH;
memcpy(mcxw_radio->tx_frame.psdu, payload, payload_len);
mcxw_radio->tx_frame.sec_processed = net_pkt_ieee802154_frame_secured(pkt);
mcxw_radio->tx_frame.hdr_updated = net_pkt_ieee802154_mac_hdr_rdy(pkt);
rf_set_channel(mcxw_radio->channel);
msg->msgType = gPdDataReq_c;
msg->msgData.dataReq.slottedTx = gPhyUnslottedMode_c;
msg->msgData.dataReq.psduLength = mcxw_radio->tx_frame.length;
msg->msgData.dataReq.CCABeforeTx = gPhyNoCCABeforeTx_c;
msg->msgData.dataReq.startTime = gPhySeqStartAsap_c;
/* tx_frame.psdu will point to tx_frame.tx_data data buffer after macToPdDataMessage_t
* structure
*/
msg->msgData.dataReq.pPsdu = mcxw_radio->tx_frame.psdu;
if (ieee802154_is_ar_flag_set(frag)) {
msg->msgData.dataReq.ackRequired = gPhyRxAckRqd_c;
/* The 3 bytes are 1 byte frame length and 2 bytes FCS */
msg->msgData.dataReq.txDuration =
IEEE802154_CCA_LEN_SYM + IEEE802154_PHY_SHR_LEN_SYM +
(3 + mcxw_radio->tx_frame.length) * RADIO_SYMBOLS_PER_OCTET +
IEEE802154_TURNAROUND_LEN_SYM;
if (is_frame_version_2015(frag->data, frag->len)) {
/* Because enhanced ack can be of variable length we need to set the timeout
* value to account for the FCF and addressing fields only, and stop the
* timeout timer after they are received and validated as a valid ACK
*/
msg->msgData.dataReq.txDuration += IEEE802154_ENH_ACK_WAIT_SYM;
} else {
msg->msgData.dataReq.txDuration += IEEE802154_IMM_ACK_WAIT_SYM;
}
} else {
msg->msgData.dataReq.ackRequired = gPhyNoAckRqd_c;
msg->msgData.dataReq.txDuration = 0xFFFFFFFFU;
}
switch (mode) {
case IEEE802154_TX_MODE_DIRECT:
msg->msgData.dataReq.CCABeforeTx = gPhyNoCCABeforeTx_c;
break;
case IEEE802154_TX_MODE_CCA:
msg->msgData.dataReq.CCABeforeTx = gPhyCCAMode1_c;
break;
#if defined(CONFIG_NET_PKT_TXTIME)
case IEEE802154_TX_MODE_TXTIME:
case IEEE802154_TX_MODE_TXTIME_CCA:
mcxw_radio->tx_frame.tx_delay = net_pkt_timestamp_ns(pkt);
msg->msgData.dataReq.startTime =
rf_adjust_tstamp_from_app(mcxw_radio->tx_frame.tx_delay);
msg->msgData.dataReq.startTime /= IEEE802154_SYMBOL_TIME_US;
break;
#endif
default:
break;
}
msg->msgData.dataReq.flags = 0;
#if OPENTHREAD_CONFIG_THREAD_VERSION >= OT_THREAD_VERSION_1_2
if (is_keyid_mode_1(mcxw_radio->tx_frame.psdu, mcxw_radio->tx_frame.length)) {
if (!net_pkt_ieee802154_frame_secured(pkt)) {
msg->msgData.dataReq.flags |= gPhyEncFrame;
if (!net_pkt_ieee802154_mac_hdr_rdy(pkt)) {
msg->msgData.dataReq.flags |= gPhyUpdHDr;
#if CONFIG_IEEE802154_CSL_ENDPOINT
/* Previously aFrame->mInfo.mTxInfo.mCslPresent was used to
* determine if the radio code should update the IE header. This
* field is no longer set by the OT stack. Until the issue is fixed
* in OT stack check if CSL period is > 0 and always update CSL IE
* in that case.
*/
if (mcxw_radio->csl_period) {
uint32_t hdr_time_us;
start_csl_receiver();
/* Add TX_ENCRYPT_DELAY_SYM symbols delay to allow
* encryption to finish
*/
msg->msgData.dataReq.startTime =
PhyTime_ReadClock() + TX_ENCRYPT_DELAY_SYM;
hdr_time_us = mcxw_get_time(NULL) +
(TX_ENCRYPT_DELAY_SYM +
IEEE802154_PHY_SHR_LEN_SYM) *
IEEE802154_SYMBOL_TIME_US;
set_csl_ie(mcxw_radio->tx_frame.psdu,
mcxw_radio->tx_frame.length,
mcxw_radio->csl_period,
rf_compute_csl_phase(hdr_time_us));
}
#endif /* CONFIG_IEEE802154_CSL_ENDPOINT */
}
}
}
#endif
k_sem_reset(&mcxw_radio->tx_wait);
phy_status = MAC_PD_SapHandler(msg, ot_phy_ctx);
if (phy_status == gPhySuccess_c) {
mcxw_radio->tx_status = 0;
mcxw_radio->state = RADIO_STATE_TRANSMIT;
} else {
return -EIO;
}
k_sem_take(&mcxw_radio->tx_wait, K_FOREVER);
/* PWR_AllowDeviceToSleep(); */
mcxw_radio_receive();
switch (mcxw_radio->tx_status) {
case 0:
if (mcxw_radio->rx_ack_frame.length) {
return handle_ack(mcxw_radio);
}
return 0;
default:
return -(mcxw_radio->tx_status);
}
}
void mcxw_rx_thread(void *arg1, void *arg2, void *arg3)
{
struct mcxw_context *mcxw_radio = (struct mcxw_context *)arg1;
struct net_pkt *pkt;
struct mcxw_rx_frame rx_frame;
ARG_UNUSED(arg2);
ARG_UNUSED(arg3);
while (true) {
pkt = NULL;
LOG_DBG("Waiting for frame");
if (k_msgq_get(&mcxw_radio->rx_msgq, &rx_frame, K_FOREVER) < 0) {
LOG_ERR("Failed to get RX data from message queue");
continue;
}
pkt = net_pkt_rx_alloc_with_buffer(mcxw_radio->iface, rx_frame.length, AF_UNSPEC, 0,
K_FOREVER);
if (net_pkt_write(pkt, rx_frame.psdu, rx_frame.length)) {
goto drop;
}
net_pkt_set_ieee802154_lqi(pkt, rx_frame.lqi);
net_pkt_set_ieee802154_rssi_dbm(pkt, rx_frame.rssi);
net_pkt_set_ieee802154_ack_fpb(pkt, rx_frame.ack_fpb);
#if defined(CONFIG_NET_PKT_TIMESTAMP)
net_pkt_set_timestamp_ns(pkt, rx_frame.timestamp);
#endif
#if defined(CONFIG_NET_L2_OPENTHREAD)
net_pkt_set_ieee802154_ack_seb(pkt, rx_frame.ack_seb);
#endif
if (net_recv_data(mcxw_radio->iface, pkt) < 0) {
LOG_ERR("Packet dropped by NET stack");
goto drop;
}
k_free(rx_frame.phy_buffer);
rx_frame.phy_buffer = NULL;
/* restart rx on idle if enough space in message queue */
if (k_msgq_num_free_get(&mcxw_radio->rx_msgq) >= 2) {
rf_rx_on_idle(RX_ON_IDLE_START);
}
continue;
drop:
/* PWR_AllowDeviceToSleep(); */
net_pkt_unref(pkt);
}
}
int8_t mcxw_get_rssi(void)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeGetReq_c;
msg.msgData.getReq.PibAttribute = gPhyGetRSSILevel_c;
msg.msgData.getReq.PibAttributeValue = 127; /* RSSI is invalid*/
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
return (int8_t)msg.msgData.getReq.PibAttributeValue;
}
void mcxw_set_promiscuous(bool aEnable)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibPromiscuousMode_c;
msg.msgData.setReq.PibAttributeValue = (uint64_t)aEnable;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
void mcxw_set_pan_coord(bool aEnable)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibPanCoordinator_c;
msg.msgData.setReq.PibAttributeValue = (uint64_t)aEnable;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
static int mcxw_energy_scan(const struct device *dev, uint16_t duration,
energy_scan_done_cb_t done_cb)
{
int status = 0;
phyStatus_t phy_status;
macToPlmeMessage_t msg;
app_disallow_device_to_slepp();
struct mcxw_context *mcxw_radio = dev->data;
__ASSERT_NO_MSG(((mcxw_radio->state != RADIO_STATE_TRANSMIT) &&
(mcxw_radio->state != RADIO_STATE_DISABLED)));
rf_abort();
rf_set_channel(mcxw_radio->channel);
mcxw_radio->energy_scan_done = done_cb;
msg.msgType = gPlmeEdReq_c;
msg.msgData.edReq.startTime = gPhySeqStartAsap_c;
msg.msgData.edReq.measureDurationSym = duration * 1000;
phy_status = MAC_PLME_SapHandler(&msg, ot_phy_ctx);
if (phy_status != gPhySuccess_c) {
mcxw_radio->energy_scan_done = NULL;
status = -EIO;
}
return status;
}
static int mcxw_set_txpower(const struct device *dev, int16_t dbm)
{
struct mcxw_context *mcxw_radio = dev->data;
LOG_DBG("%d", dbm);
if (dbm != mcxw_radio->tx_pwr_lvl) {
/* Set Power level for TX */
rf_set_tx_power(dbm);
mcxw_radio->tx_pwr_lvl = dbm;
}
return 0;
}
static void mcxw_configure_enh_ack_probing(const struct ieee802154_config *config)
{
uint32_t ie_param = 0;
macToPlmeMessage_t msg;
uint8_t *header_ie_buf = (uint8_t *)(config->ack_ie.header_ie);
ie_param = (header_ie_buf[6] == 0x03 ? IeData_Lqi_c : 0) |
(header_ie_buf[7] == 0x02 ? IeData_LinkMargin_c : 0) |
(header_ie_buf[8] == 0x01 ? IeData_Rssi_c : 0);
msg.msgType = gPlmeConfigureAckIeData_c;
msg.msgData.AckIeData.param = (ie_param > 0 ? IeData_MSB_VALID_DATA : 0);
msg.msgData.AckIeData.param |= ie_param;
msg.msgData.AckIeData.shortAddr = config->ack_ie.short_addr;
memcpy(msg.msgData.AckIeData.extAddr, config->ack_ie.ext_addr, 8);
memcpy(msg.msgData.AckIeData.data, config->ack_ie.header_ie,
config->ack_ie.header_ie->length);
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
static void mcxw_set_mac_key(struct ieee802154_key *mac_keys)
{
macToPlmeMessage_t msg;
__ASSERT_NO_MSG(mac_keys);
__ASSERT_NO_MSG(mac_keys[0].key_id && mac_keys[0].key_value);
__ASSERT_NO_MSG(mac_keys[1].key_id && mac_keys[1].key_value);
__ASSERT_NO_MSG(mac_keys[2].key_id && mac_keys[2].key_value);
msg.msgType = gPlmeSetMacKey_c;
msg.msgData.MacKeyData.keyId = *(mac_keys[1].key_id);
memcpy(msg.msgData.MacKeyData.prevKey, mac_keys[0].key_value, 16);
memcpy(msg.msgData.MacKeyData.currKey, mac_keys[1].key_value, 16);
memcpy(msg.msgData.MacKeyData.nextKey, mac_keys[2].key_value, 16);
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
void mcxw_set_mac_frame_counter(uint32_t frame_counter)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetMacFrameCounter_c;
msg.msgData.MacFrameCounter = frame_counter;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
void mcxw_set_mac_frame_counter_if_larger(uint32_t frame_counter)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetMacFrameCounterIfLarger_c;
msg.msgData.MacFrameCounter = frame_counter;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
#if CONFIG_IEEE802154_CSL_ENDPOINT
static void mcxw_receive_at(uint8_t channel, uint32_t start, uint32_t duration)
{
macToPlmeMessage_t msg;
__ASSERT_NO_MSG(mcxw_ctx.state == RADIO_STATE_SLEEP);
mcxw_ctx.state = RADIO_STATE_RECEIVE;
/* checks internally if the channel needs to be changed */
rf_set_channel(mcxw_ctx.channel);
start = rf_adjust_tstamp_from_app(start);
msg.msgType = gPlmeSetTRxStateReq_c;
msg.msgData.setTRxStateReq.slottedMode = gPhyUnslottedMode_c;
msg.msgData.setTRxStateReq.state = gPhySetRxOn_c;
msg.msgData.setTRxStateReq.rxDuration = duration / IEEE802154_SYMBOL_TIME_US;
msg.msgData.setTRxStateReq.startTime = start / IEEE802154_SYMBOL_TIME_US;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
static void mcxw_enable_csl(uint16_t period)
{
mcxw_ctx.csl_period = period;
macToPlmeMessage_t msg;
msg.msgType = gPlmeCslEnable_c;
msg.msgData.cslPeriod = period;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
static void set_csl_sample_time(void)
{
if (!mcxw_ctx.csl_period) {
return;
}
macToPlmeMessage_t msg;
uint32_t csl_period = mcxw_ctx.csl_period * 10 * IEEE802154_SYMBOL_TIME_US;
uint32_t dt = mcxw_ctx.csl_sample_time - (uint32_t)mcxw_get_time(NULL);
/* next channel sample should be in the future */
while ((dt <= CMP_OVHD) || (dt > (CMP_OVHD + 2 * csl_period))) {
mcxw_ctx.csl_sample_time += csl_period;
dt = mcxw_ctx.csl_sample_time - (uint32_t)mcxw_get_time(NULL);
}
/* The CSL sample time is in microseconds and PHY function expects also microseconds */
msg.msgType = gPlmeCslSetSampleTime_c;
msg.msgData.cslSampleTime = rf_adjust_tstamp_from_app(mcxw_ctx.csl_sample_time);
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
static void start_csl_receiver(void)
{
if (!mcxw_ctx.csl_period) {
return;
}
/* NBU has to be awake during CSL receiver trx so that conversion from
* PHY timebase (NBU) to TMR timebase (host) is valid
*/
if (!csl_rx) {
PLATFORM_RemoteActiveReq();
csl_rx = TRUE;
}
/* sample time is converted to PHY time */
set_csl_sample_time();
}
static void stop_csl_receiver(void)
{
if (csl_rx) {
PLATFORM_RemoteActiveRel();
csl_rx = FALSE;
}
}
/*
* Compute the CSL Phase for the time_us - i.e. the time from the time_us to
* mcxw_ctx.csl_sample_time. The assumption is that mcxw_ctx.csl_sample_time > time_us. Since the
* time is kept with a limited timer in reality it means that sometimes mcxw_ctx.csl_sample_time <
* time_us, when the timer overflows. Therefore the formula should be:
*
* if (time_us <= mcxw_ctx.csl_sample_time)
* csl_phase_us = mcxw_ctx.csl_sample_time - time_us;
* else
* csl_phase_us = MAX_TIMER_VALUE - time_us + mcxw_ctx.csl_sample_time;
*
* For simplicity the formula below has been used.
*/
static uint16_t rf_compute_csl_phase(uint32_t time_us)
{
/* convert CSL Period in microseconds - it was given in 10 symbols */
uint32_t csl_period_us = mcxw_ctx.csl_period * 10 * IEEE802154_SYMBOL_TIME_US;
uint32_t csl_phase_us =
(csl_period_us - (time_us % csl_period_us) +
(mcxw_ctx.csl_sample_time % csl_period_us)) % csl_period_us;
return (uint16_t)(csl_phase_us / (10 * IEEE802154_SYMBOL_TIME_US) + 1);
}
#endif /* CONFIG_IEEE802154_CSL_ENDPOINT */
/*************************************************************************************************/
static void rf_abort(void)
{
macToPlmeMessage_t msg;
sun_rx_mode = RX_ON_IDLE_START;
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibRxOnWhenIdle;
msg.msgData.setReq.PibAttributeValue = (uint64_t)0;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
msg.msgType = gPlmeSetTRxStateReq_c;
msg.msgData.setTRxStateReq.state = gPhyForceTRxOff_c;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
static void rf_set_channel(uint8_t channel)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibCurrentChannel_c;
msg.msgData.setReq.PibAttributeValue = (uint64_t)channel;
(void)MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
static int mcxw_cca(const struct device *dev)
{
macToPlmeMessage_t msg;
phyStatus_t phy_status;
struct mcxw_context *mcxw_radio = dev->data;
msg.msgType = gPlmeCcaReq_c;
msg.msgData.ccaReq.ccaType = gPhyCCAMode1_c;
msg.msgData.ccaReq.contCcaMode = gPhyContCcaDisabled;
phy_status = MAC_PLME_SapHandler(&msg, ot_phy_ctx);
__ASSERT_NO_MSG(phy_status == gPhySuccess_c);
k_sem_take(&mcxw_radio->cca_wait, K_FOREVER);
return (mcxw_radio->tx_status == OT_ERROR_CHANNEL_ACCESS_FAILURE) ? -EBUSY : 0;
}
static int mcxw_set_channel(const struct device *dev, uint16_t channel)
{
struct mcxw_context *mcxw_radio = dev->data;
LOG_DBG("%u", channel);
if (channel != mcxw_radio->channel) {
if (channel < 11 || channel > 26) {
return channel < 11 ? -ENOTSUP : -EINVAL;
}
mcxw_radio->channel = channel;
}
return 0;
}
static net_time_t mcxw_get_time(const struct device *dev)
{
static uint64_t sw_timestamp;
static uint64_t hw_timestamp;
ARG_UNUSED(dev);
/* Get new 32bit HW timestamp */
uint32_t ticks;
uint64_t hw_timestamp_new;
uint64_t wrapped_val = 0;
uint64_t increment;
unsigned int key;
key = irq_lock();
if (counter_get_value(mcxw_ctx.counter, &ticks)) {
irq_unlock(key);
return -1;
}
hw_timestamp_new = counter_ticks_to_us(mcxw_ctx.counter, ticks);
/* Check if the timestamp has wrapped around */
if (hw_timestamp > hw_timestamp_new) {
wrapped_val =
COUNT_TO_USEC(((uint64_t)1 << 32), counter_get_frequency(mcxw_ctx.counter));
}
increment = (hw_timestamp_new + wrapped_val) - hw_timestamp;
sw_timestamp += increment;
/* Store new HW timestamp for next iteration */
hw_timestamp = hw_timestamp_new;
irq_unlock(key);
return (net_time_t)sw_timestamp;
}
static void rf_set_tx_power(int8_t tx_power)
{
macToPlmeMessage_t msg;
msg.msgType = gPlmeSetReq_c;
msg.msgData.setReq.PibAttribute = gPhyPibTransmitPower_c;
msg.msgData.setReq.PibAttributeValue = (uint64_t)tx_power;
MAC_PLME_SapHandler(&msg, ot_phy_ctx);
}
/* Used to convert from phy clock timestamp (in symbols) to platform time (in us)
* the reception timestamp which must use a true 64bit timestamp source
*/
static uint64_t rf_adjust_tstamp_from_phy(uint64_t ts)
{
uint64_t now = PhyTime_ReadClock();
uint64_t delta;
delta = (now >= ts) ? (now - ts) : ((PHY_TMR_MAX_VALUE + now) - ts);
delta *= IEEE802154_SYMBOL_TIME_US;
return mcxw_get_time(NULL) - delta;
}
#if CONFIG_IEEE802154_CSL_ENDPOINT || CONFIG_NET_PKT_TXTIME
static uint32_t rf_adjust_tstamp_from_app(uint32_t time)
{
/* The phy timestamp is in symbols so we need to convert it to microseconds */
uint64_t ts = PhyTime_ReadClock() * IEEE802154_SYMBOL_TIME_US;
uint32_t delta = time - (uint32_t)mcxw_get_time(NULL);
return (uint32_t)(ts + delta);
}
#endif /* CONFIG_IEEE802154_CSL_ENDPOINT || CONFIG_NET_PKT_TXTIME */
/* Phy Data Service Access Point handler
* Called by Phy to notify when Tx has been done or Rx data is available
*/
phyStatus_t pd_mac_sap_handler(void *msg, instanceId_t instance)
{
pdDataToMacMessage_t *data_msg = (pdDataToMacMessage_t *)msg;
__ASSERT_NO_MSG(msg != NULL);
/* PWR_DisallowDeviceToSleep(); */
switch (data_msg->msgType) {
case gPdDataCnf_c:
/* TX is done */
#if OPENTHREAD_CONFIG_THREAD_VERSION >= OT_THREAD_VERSION_1_2
if (is_keyid_mode_1(mcxw_ctx.tx_frame.psdu, mcxw_ctx.tx_frame.length) &&
!mcxw_ctx.tx_frame.sec_processed && !mcxw_ctx.tx_frame.hdr_updated) {
set_frame_counter(mcxw_ctx.tx_frame.psdu, mcxw_ctx.tx_frame.length,
data_msg->fc);
mcxw_ctx.tx_frame.hdr_updated = true;
}
#endif
mcxw_ctx.tx_frame.length = 0;
mcxw_ctx.tx_status = 0;
mcxw_ctx.state = RADIO_STATE_RECEIVE;
mcxw_ctx.rx_ack_frame.channel = mcxw_ctx.channel;
mcxw_ctx.rx_ack_frame.length = data_msg->msgData.dataCnf.ackLength;
mcxw_ctx.rx_ack_frame.timestamp = data_msg->msgData.dataCnf.timeStamp;
memcpy(mcxw_ctx.rx_ack_frame.psdu, data_msg->msgData.dataCnf.ackData,
mcxw_ctx.rx_ack_frame.length);
k_sem_give(&mcxw_ctx.tx_wait);
k_free(msg);
break;
case gPdDataInd_c: