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Check HCI Handle using function in BluetoothService class

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This commit is contained in:
Kristian Lauszus 2014-09-09 16:38:42 -07:00
parent 106aff6411
commit 285b21cdbc
5 changed files with 16 additions and 26 deletions
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20
BTD.h
View file

@ -189,21 +189,6 @@
#define PAIR 1
/* acl_handle_ok or it's a new connection */
#if 0
#define UHS_ACL_HANDLE_OK(x, y) ((uint16_t)(x[0]) | (uint16_t)(x[1] << 8)) == (y | 0x2000U)
#else
/*
* Better implementation.
* o One place for this code, it is reused four times in the source.
* Perhaps it is better as a function.
* o This should be faster since the && operation can early exit, this means
* the shift would only be performed if the first byte matches.
* o Casting is eliminated.
* o How does this compare in code size? No difference. It is a free optimization.
*/
#define UHS_ACL_HANDLE_OK(x, y) ((x[0] == (y & 0xff)) && (x[1] == ((y >> 8) | 0x20)))
#endif
class BluetoothService;
/**
@ -609,6 +594,11 @@ protected:
*/
virtual void onInit() = 0;
/** Used to check if the incoming L2CAP data matches the HCI Handle */
bool checkHciHandle(uint8_t *buf, uint16_t handle) {
return (buf[0] == (handle & 0xFF)) && (buf[1] == ((handle >> 8) | 0x20));
}
/** Pointer to function called in onInit(). */
void (*pFuncOnInit)(void);

4
BTHID.cpp
View file

@ -65,8 +65,8 @@ void BTHID::ACLData(uint8_t* l2capinbuf) {
}
}
}
//if((l2capinbuf[0] | (uint16_t)l2capinbuf[1] << 8) == (hci_handle | 0x2000U)) { // acl_handle_ok or it's a new connection
if(UHS_ACL_HANDLE_OK(l2capinbuf, hci_handle)) { // acl_handle_ok or it's a new connection
if(checkHciHandle(l2capinbuf, hci_handle)) { // acl_handle_ok
if((l2capinbuf[6] | (l2capinbuf[7] << 8)) == 0x0001U) { // l2cap_control - Channel ID for ACL-U
if(l2capinbuf[8] == L2CAP_CMD_COMMAND_REJECT) {
#ifdef DEBUG_USB_HOST

6
PS3BT.cpp
View file

@ -241,10 +241,10 @@ void PS3BT::ACLData(uint8_t* ACLData) {
}
}
}
//if((ACLData[0] | (uint16_t)ACLData[1] << 8) == (hci_handle | 0x2000U)) { //acl_handle_ok
if(UHS_ACL_HANDLE_OK(ACLData, hci_handle)) { //acl_handle_ok
if(checkHciHandle(ACLData, hci_handle)) { // acl_handle_ok
memcpy(l2capinbuf, ACLData, BULK_MAXPKTSIZE);
if((l2capinbuf[6] | (l2capinbuf[7] << 8)) == 0x0001U) { //l2cap_control - Channel ID for ACL-U
if((l2capinbuf[6] | (l2capinbuf[7] << 8)) == 0x0001U) { // l2cap_control - Channel ID for ACL-U
if(l2capinbuf[8] == L2CAP_CMD_COMMAND_REJECT) {
#ifdef DEBUG_USB_HOST
Notify(PSTR("\r\nL2CAP Command Rejected - Reason: "), 0x80);

6
SPP.cpp
View file

@ -95,9 +95,9 @@ void SPP::ACLData(uint8_t* l2capinbuf) {
}
}
}
//if((l2capinbuf[0] | (uint16_t)l2capinbuf[1] << 8) == (hci_handle | 0x2000U)) { // acl_handle_ok
if(UHS_ACL_HANDLE_OK(l2capinbuf, hci_handle)) { // acl_handle_ok
if((l2capinbuf[6] | (l2capinbuf[7] << 8)) == 0x0001U) { //l2cap_control - Channel ID for ACL-U
if(checkHciHandle(l2capinbuf, hci_handle)) { // acl_handle_ok
if((l2capinbuf[6] | (l2capinbuf[7] << 8)) == 0x0001U) { // l2cap_control - Channel ID for ACL-U
if(l2capinbuf[8] == L2CAP_CMD_COMMAND_REJECT) {
#ifdef DEBUG_USB_HOST
Notify(PSTR("\r\nL2CAP Command Rejected - Reason: "), 0x80);

6
Wii.cpp
View file

@ -142,9 +142,9 @@ void WII::ACLData(uint8_t* l2capinbuf) {
}
}
}
//if((l2capinbuf[0] | (uint16_t)l2capinbuf[1] << 8) == (hci_handle | 0x2000U)) { // acl_handle_ok or it's a new connection
if(UHS_ACL_HANDLE_OK(l2capinbuf, hci_handle)) { // acl_handle_ok or it's a new connection
if((l2capinbuf[6] | (l2capinbuf[7] << 8)) == 0x0001U) { //l2cap_control - Channel ID for ACL-U
if(checkHciHandle(l2capinbuf, hci_handle)) { // acl_handle_ok
if((l2capinbuf[6] | (l2capinbuf[7] << 8)) == 0x0001U) { // l2cap_control - Channel ID for ACL-U
if(l2capinbuf[8] == L2CAP_CMD_COMMAND_REJECT) {
#ifdef DEBUG_USB_HOST
Notify(PSTR("\r\nL2CAP Command Rejected - Reason: "), 0x80);