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cpu/nrf/radio/nrf802154: request HFXO clock source

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This commit is contained in:
Hauke Petersen 2021-01-19 20:49:07 +01:00
parent 9d1692c45a
commit cea6d8dd2d
2 changed files with 27 additions and 3 deletions
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6
cpu/nrf52/radio/nrf802154/nrf802154.c
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@ -27,6 +27,7 @@
#include "cpu.h" #include "cpu.h"
#include "mutex.h" #include "mutex.h"
#include "nrf_clock.h"
#include "net/ieee802154.h" #include "net/ieee802154.h"
#include "periph/timer.h" #include "periph/timer.h"
@ -247,6 +248,11 @@ static int _init(netdev_t *dev)
txbuf[0] = 0; txbuf[0] = 0;
_state = 0; _state = 0;
/* the radio need the external HF clock source to be enabled */
/* @todo add proper handling to release the clock whenever the radio is
* idle */
clock_hfxo_request();
/* power on peripheral */ /* power on peripheral */
NRF_RADIO->POWER = 1; NRF_RADIO->POWER = 1;

24
cpu/nrf52/radio/nrf802154/nrf802154_radio.c
View File

@ -23,6 +23,7 @@
#include "cpu.h" #include "cpu.h"
#include "luid.h" #include "luid.h"
#include "nrf_clock.h"
#include "net/ieee802154.h" #include "net/ieee802154.h"
#include "periph/timer.h" #include "periph/timer.h"
@ -101,6 +102,22 @@ ieee802154_dev_t nrf802154_hal_dev = {
.driver = &nrf802154_ops, .driver = &nrf802154_ops,
}; };
static void _power_on(void)
{
if (NRF_RADIO->POWER == 0) {
clock_hfxo_request();
NRF_RADIO->POWER = 1;
}
}
static void _power_off(void)
{
if (NRF_RADIO->POWER == 1) {
NRF_RADIO->POWER = 0;
clock_hfxo_release();
}
}
static bool _l2filter(uint8_t *mhr) static bool _l2filter(uint8_t *mhr)
{ {
uint8_t dst_addr[IEEE802154_LONG_ADDRESS_LEN]; uint8_t dst_addr[IEEE802154_LONG_ADDRESS_LEN];
@ -445,7 +462,8 @@ int nrf802154_init(void)
(void)result; (void)result;
timer_stop(NRF802154_TIMER); timer_stop(NRF802154_TIMER);
/* power off peripheral */ /* power off peripheral (but do not release the HFXO as we never requested
* it so far) */
NRF_RADIO->POWER = 0; NRF_RADIO->POWER = 0;
return 0; return 0;
@ -574,7 +592,7 @@ static int _request_on(ieee802154_dev_t *dev)
(void) dev; (void) dev;
_state = STATE_IDLE; _state = STATE_IDLE;
DEBUG("[nrf802154]: Request to turn on\n"); DEBUG("[nrf802154]: Request to turn on\n");
NRF_RADIO->POWER = 1; _power_on();
/* make sure the radio is disabled/stopped */ /* make sure the radio is disabled/stopped */
_disable(); _disable();
/* we configure it to run in IEEE802.15.4 mode */ /* we configure it to run in IEEE802.15.4 mode */
@ -639,7 +657,7 @@ static int _off(ieee802154_dev_t *dev)
{ {
(void) dev; (void) dev;
DEBUG("[nrf802154] Turning off the radio\n"); DEBUG("[nrf802154] Turning off the radio\n");
NRF_RADIO->POWER = 0; _power_off();
return 0; return 0;
} }