michaelh/zephyr
1
0
Fork 0
Code Releases Activity

net: opentread: Implemented otPlatRadioGetRssi

Browse source 
Implemented blocking OpenThread otPlatRadioGetRssi api function using
no-blocking energy scan function from radio driver api interface.

Signed-off-by: Tomasz Konieczny <tomasz.konieczny@nordicsemi.no>
This commit is contained in:
Tomasz Konieczny 2020-03-27 17:08:37 +01:00 • committed by Jukka Rissanen
commit 8214f26720
1 changed files with 37 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

39
subsys/net/lib/openthread/platform/radio.c
View file

@ -51,6 +51,8 @@ enum pending_events {
PENDING_EVENT_COUNT /* keep last */
};
K_SEM_DEFINE(radio_sem, 0, 1);
static otRadioState sState = OT_RADIO_STATE_DISABLED;
static otRadioFrame sTransmitFrame;
@ -362,12 +364,45 @@ otRadioFrame *otPlatRadioGetTransmitBuffer(otInstance *aInstance)
return &sTransmitFrame;
}
static void get_rssi_energy_detected(struct device *dev, s16_t max_ed)
{
ARG_UNUSED(dev);
energy_detected_value = max_ed;
k_sem_give(&radio_sem);
}
int8_t otPlatRadioGetRssi(otInstance *aInstance)
{
s8_t ret_rssi = INT8_MAX;
int error = 0;
const u16_t energy_detection_time = 1;
enum ieee802154_hw_caps radio_caps;
ARG_UNUSED(aInstance);
/* TODO: No API in Zephyr to get the RSSI. */
return 0;
radio_caps = radio_api->get_capabilities(radio_dev);
if (!(radio_caps & IEEE802154_HW_ENERGY_SCAN)) {
/*
* TODO: No API in Zephyr to get the RSSI
* when IEEE802154_HW_ENERGY_SCAN is not available
*/
ret_rssi = 0;
} else {
/*
* Blocking implementation of get RSSI
* using no-blocking ed_scan
*/
error = radio_api->ed_scan(radio_dev, energy_detection_time,
get_rssi_energy_detected);
if (error == 0) {
k_sem_take(&radio_sem, K_FOREVER);
ret_rssi = (s8_t)energy_detected_value;
}
}
return ret_rssi;
}
otRadioCaps otPlatRadioGetCaps(otInstance *aInstance)