specchioriflesso/USB_Host_Shield_2.0
1
Fork 0
mirror of https://github.com/felis/USB_Host_Shield_2.0.git synced 2024-03-22 11:31:26 +01:00
Code Issues Packages Projects Releases Wiki Activity

Store the timestamp of the last Bluetooth DATA input report received on the interrupt channel

Browse source 
This can be used detect if the connection to a Bluetooth device is lost fx if the battery runs out or it gets out of range
This commit is contained in:
Kristian Sloth Lauszus 2021-01-26 23:41:05 +01:00
parent 8758b2fc25
commit b4bbfecd09
2 changed files with 13 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
BTHID.cpp
View file

@ -337,6 +337,8 @@ void BTHID::ACLData(uint8_t* l2capinbuf) {
} }
#endif #endif
if(l2capinbuf[8] == 0xA1) { // HID BT DATA (0xA0) | Report Type (Input 0x01) if(l2capinbuf[8] == 0xA1) { // HID BT DATA (0xA0) | Report Type (Input 0x01)
lastBtDataInputIntMillis = (uint32_t)millis(); // Store the timestamp of the report
uint16_t length = ((uint16_t)l2capinbuf[5] << 8 | l2capinbuf[4]); uint16_t length = ((uint16_t)l2capinbuf[5] << 8 | l2capinbuf[4]);
ParseBTHIDData((uint8_t)(length - 1), &l2capinbuf[9]); // First byte will be the report ID ParseBTHIDData((uint8_t)(length - 1), &l2capinbuf[9]); // First byte will be the report ID

11
BTHID.h
View file

@ -93,6 +93,15 @@ public:
pBtd->pairWithHID(); pBtd->pairWithHID();
}; };
/**
* Used to get the millis() of the last Bluetooth DATA input report received on the interrupt channel.
* This can be used detect if the connection to a Bluetooth device is lost fx if the battery runs out or if it gets out of range.
* @return Timestamp in milliseconds of the last Bluetooth DATA input report received on the interrupt channel.
*/
uint32_t getLastMessageTime() {
return lastBtDataInputIntMillis;
};
protected: protected:
/** @name BluetoothService implementation */ /** @name BluetoothService implementation */
/** /**
@ -173,5 +182,7 @@ private:
uint8_t interrupt_dcid[2]; // L2CAP device CID for HID_Interrupt - Always 0x0071 uint8_t interrupt_dcid[2]; // L2CAP device CID for HID_Interrupt - Always 0x0071
uint8_t sdp_dcid[2]; uint8_t sdp_dcid[2];
uint8_t l2cap_state; uint8_t l2cap_state;
uint32_t lastBtDataInputIntMillis; // Variable used to store the millis value of the last Bluetooth DATA input report received on the interrupt channel
}; };
#endif #endif