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lorawan: replace booleans by atomic flags

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ADR status and devtime updated flags merged into an atomic bits array.
Related to Issue #55072

Co-authored-by: Jan Kowalewski <jkowalewski@cthings.co>

Signed-off-by: romain pelletant <romain.pelletant@fullfreqs.com>
Signed-off-by: Jan Kowalewski <jkowalewski@cthings.co>
This commit is contained in:
romain pelletant 2023-09-24 17:46:10 +02:00 committed by Anas Nashif
parent ae0c1b72cf
commit bea68273d5
1 changed files with 24 additions and 16 deletions
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38
subsys/lorawan/lorawan.c
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@ -61,14 +61,20 @@ K_SEM_DEFINE(mcps_confirm_sem, 0, 1);
K_MUTEX_DEFINE(lorawan_join_mutex);
K_MUTEX_DEFINE(lorawan_send_mutex);
/* lorawan flags: store lorawan states */
enum {
LORAWAN_FLAG_ADR_ENABLE,
LORAWAN_FLAG_DEVICETIME_UPDATED_ONCE,
LORAWAN_FLAG_COUNT,
};
/* We store both the default datarate requested through lorawan_set_datarate
* and the current datarate so that we can use the default datarate for all
* join requests, even as the current datarate changes due to ADR.
*/
static enum lorawan_datarate default_datarate;
static enum lorawan_datarate current_datarate;
static bool lorawan_adr_enable;
static bool lorawan_device_time_updated_once;
static ATOMIC_DEFINE(lorawan_flags, LORAWAN_FLAG_COUNT);
static sys_slist_t dl_callbacks;
@ -138,7 +144,7 @@ static void mcps_confirm_handler(McpsConfirm_t *mcps_confirm)
}
/* Datarate may have changed due to a missed ADRACK */
if (lorawan_adr_enable) {
if (atomic_test_bit(lorawan_flags, LORAWAN_FLAG_ADR_ENABLE)) {
datarate_observe(false);
}
@ -160,12 +166,14 @@ static void mcps_indication_handler(McpsIndication_t *mcps_indication)
}
/* Datarate can change as result of ADR command from server */
if (lorawan_adr_enable) {
if (atomic_test_bit(lorawan_flags, LORAWAN_FLAG_ADR_ENABLE)) {
datarate_observe(false);
}
/* Save time has been updated at least once */
if (!lorawan_device_time_updated_once && mcps_indication->DeviceTimeAnsReceived) {
lorawan_device_time_updated_once = true;
if (!atomic_test_bit(lorawan_flags, LORAWAN_FLAG_DEVICETIME_UPDATED_ONCE) &&
mcps_indication->DeviceTimeAnsReceived) {
atomic_set_bit(lorawan_flags, LORAWAN_FLAG_DEVICETIME_UPDATED_ONCE);
}
/* IsUplinkTxPending also indicates pending downlinks */
@ -418,13 +426,13 @@ int lorawan_device_time_get(uint32_t *gps_time)
__ASSERT(gps_time != NULL, "gps_time parameter is required");
if (lorawan_device_time_updated_once) {
if (!atomic_test_bit(lorawan_flags, LORAWAN_FLAG_DEVICETIME_UPDATED_ONCE)) {
return -EAGAIN;
}
local_time = SysTimeGet();
*gps_time = local_time.Seconds - UNIX_GPS_EPOCH_OFFSET;
return 0;
} else {
return -EAGAIN;
}
}
int lorawan_join(const struct lorawan_join_config *join_cfg)
@ -485,7 +493,7 @@ out:
* performed when ADR is disabled as it the network servers
* responsibility to increase datarates when ADR is enabled.
*/
if (!lorawan_adr_enable) {
if (!atomic_test_bit(lorawan_flags, LORAWAN_FLAG_ADR_ENABLE)) {
MibRequestConfirm_t mib_req2;
mib_req2.Type = MIB_CHANNELS_DATARATE;
@ -565,7 +573,7 @@ int lorawan_set_datarate(enum lorawan_datarate dr)
MibRequestConfirm_t mib_req;
/* Bail out if using ADR */
if (lorawan_adr_enable) {
if (atomic_test_bit(lorawan_flags, LORAWAN_FLAG_ADR_ENABLE)) {
return -EINVAL;
}
@ -609,11 +617,11 @@ void lorawan_enable_adr(bool enable)
{
MibRequestConfirm_t mib_req;
if (enable != lorawan_adr_enable) {
lorawan_adr_enable = enable;
if (enable != atomic_test_bit(lorawan_flags, LORAWAN_FLAG_ADR_ENABLE)) {
atomic_set_bit_to(lorawan_flags, LORAWAN_FLAG_ADR_ENABLE, enable);
mib_req.Type = MIB_ADR;
mib_req.Param.AdrEnable = lorawan_adr_enable;
mib_req.Param.AdrEnable = atomic_test_bit(lorawan_flags, LORAWAN_FLAG_ADR_ENABLE);
LoRaMacMibSetRequestConfirm(&mib_req);
}
}