You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
3.3 KiB
Go
98 lines
3.3 KiB
Go
//go:build softdevice && s113v7
|
|
// +build softdevice,s113v7
|
|
|
|
package bluetooth
|
|
|
|
// This file implements the event handler for SoftDevices with only peripheral
|
|
// mode support. This includes the S113.
|
|
|
|
/*
|
|
// Define SoftDevice functions as regular function declarations (not inline
|
|
// static functions).
|
|
#define SVCALL_AS_NORMAL_FUNCTION
|
|
|
|
#include "nrf_sdm.h"
|
|
#include "nrf_nvic.h"
|
|
#include "ble.h"
|
|
#include "ble_gap.h"
|
|
*/
|
|
import "C"
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
func handleEvent() {
|
|
id := eventBuf.header.evt_id
|
|
switch {
|
|
case id >= C.BLE_GAP_EVT_BASE && id <= C.BLE_GAP_EVT_LAST:
|
|
gapEvent := eventBuf.evt.unionfield_gap_evt()
|
|
switch id {
|
|
case C.BLE_GAP_EVT_CONNECTED:
|
|
if debug {
|
|
println("evt: connected in peripheral role")
|
|
}
|
|
currentConnection.Reg = gapEvent.conn_handle
|
|
DefaultAdapter.connectHandler(nil, true)
|
|
case C.BLE_GAP_EVT_DISCONNECTED:
|
|
if debug {
|
|
println("evt: disconnected")
|
|
}
|
|
currentConnection.Reg = C.BLE_CONN_HANDLE_INVALID
|
|
// Auto-restart advertisement if needed.
|
|
if defaultAdvertisement.isAdvertising.Get() != 0 {
|
|
// The advertisement was running but was automatically stopped
|
|
// by the connection event.
|
|
// Note that it cannot be restarted during connect like this,
|
|
// because it would need to be reconfigured as a non-connectable
|
|
// advertisement. That's left as a future addition, if
|
|
// necessary.
|
|
C.sd_ble_gap_adv_start(defaultAdvertisement.handle, C.BLE_CONN_CFG_TAG_DEFAULT)
|
|
}
|
|
DefaultAdapter.connectHandler(nil, false)
|
|
case C.BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST:
|
|
// We need to respond with sd_ble_gap_data_length_update. Setting
|
|
// both parameters to nil will make sure we send the default values.
|
|
C.sd_ble_gap_data_length_update(gapEvent.conn_handle, nil, nil)
|
|
default:
|
|
if debug {
|
|
println("unknown GAP event:", id)
|
|
}
|
|
}
|
|
case id >= C.BLE_GATTS_EVT_BASE && id <= C.BLE_GATTS_EVT_LAST:
|
|
gattsEvent := eventBuf.evt.unionfield_gatts_evt()
|
|
switch id {
|
|
case C.BLE_GATTS_EVT_WRITE:
|
|
writeEvent := gattsEvent.params.unionfield_write()
|
|
len := writeEvent.len - writeEvent.offset
|
|
data := (*[255]byte)(unsafe.Pointer(&writeEvent.data[0]))[:len:len]
|
|
handler := DefaultAdapter.getCharWriteHandler(writeEvent.handle)
|
|
if handler != nil {
|
|
handler.callback(Connection(gattsEvent.conn_handle), int(writeEvent.offset), data)
|
|
}
|
|
case C.BLE_GATTS_EVT_SYS_ATTR_MISSING:
|
|
// This event is generated when reading the Generic Attribute
|
|
// service. It appears to be necessary for bonded devices.
|
|
// From the docs:
|
|
// > If the pointer is NULL, the system attribute info is
|
|
// > initialized, assuming that the application does not have any
|
|
// > previously saved system attribute data for this device.
|
|
// Maybe we should look at the error, but as there's not really a
|
|
// way to handle it, ignore it.
|
|
C.sd_ble_gatts_sys_attr_set(gattsEvent.conn_handle, nil, 0, 0)
|
|
case C.BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST:
|
|
// This event is generated by some devices. While we could support
|
|
// larger MTUs, this default MTU is supported everywhere.
|
|
C.sd_ble_gatts_exchange_mtu_reply(gattsEvent.conn_handle, C.BLE_GATT_ATT_MTU_DEFAULT)
|
|
default:
|
|
if debug {
|
|
println("unknown GATTS event:", id, id-C.BLE_GATTS_EVT_BASE)
|
|
}
|
|
}
|
|
default:
|
|
if debug {
|
|
println("unknown event:", id)
|
|
}
|
|
}
|
|
}
|