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adapter_nrf528xx.go
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adapter_nrf528xx.go
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//go:build (softdevice && s113v7) || (softdevice && s132v6) || (softdevice && s140v6) || (softdevice && s140v7)
package bluetooth
// This file defines the SoftDevice adapter for all nrf52-series chips.
/*
#include "nrf_sdm.h"
#include "nrf_nvic.h"
#include "ble.h"
#include "ble_gap.h"
void assertHandler(void);
*/
import "C"
import (
"machine"
"unsafe"
)
//export assertHandler
func assertHandler() {
println("SoftDevice assert")
}
var clockConfigXtal C.nrf_clock_lf_cfg_t = C.nrf_clock_lf_cfg_t{
source: C.NRF_CLOCK_LF_SRC_XTAL,
rc_ctiv: 0,
rc_temp_ctiv: 0,
accuracy: C.NRF_CLOCK_LF_ACCURACY_250_PPM,
}
//go:extern __app_ram_base
var appRAMBase [0]uint32
func (a *Adapter) enable() error {
// Enable the SoftDevice.
var clockConfig *C.nrf_clock_lf_cfg_t
if machine.HasLowFrequencyCrystal {
clockConfig = &clockConfigXtal
}
errCode := C.sd_softdevice_enable(clockConfig, C.nrf_fault_handler_t(C.assertHandler))
if errCode != 0 {
return Error(errCode)
}
// Enable the BLE stack.
appRAMBase := C.uint32_t(uintptr(unsafe.Pointer(&appRAMBase)))
errCode = C.sd_ble_enable(&appRAMBase)
return makeError(errCode)
}
func (a *Adapter) Address() (MACAddress, error) {
var addr C.ble_gap_addr_t
errCode := C.sd_ble_gap_addr_get(&addr)
if errCode != 0 {
return MACAddress{}, Error(errCode)
}
return MACAddress{MAC: makeAddress(addr.addr)}, nil
}
// Convert a C.ble_gap_addr_t to a MACAddress struct.
func makeMACAddress(addr C.ble_gap_addr_t) MACAddress {
return MACAddress{
MAC: makeAddress(addr.addr),
isRandom: addr.bitfield_addr_type() != 0,
}
}