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filter redundant hci reset commands due to dual Bluetooth protocol stacks

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Signed-off-by: duqunbo <duqunbo@xiaomi.com>
This commit is contained in:
duqunbo
2024-03-06 21:53:47 +08:00
committed by Xiang Xiao
parent 8b68f9d816
commit dfbeba3536
1 changed files with 50 additions and 0 deletions
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drivers/wireless/bluetooth/bt_bridge.c
+50
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@@ -44,6 +44,9 @@
#define BT_FILTER_TYPE_BLE 1
#define BT_FILTER_TYPE_COUNT 2
#define BT_FILTER_CMD_RESET 0
#define BT_FILTER_CMD_COUNT 1
/****************************************************************************
* Private Types
****************************************************************************/
@@ -70,6 +73,7 @@ struct bt_bridge_s
FAR struct snoop_s *snoop;
#endif /* CONFIG_BLUETOOTH_BRIDGE_BTSNOOP */
atomic_uint refs;
bool dispatched[BT_FILTER_CMD_COUNT];
};
/****************************************************************************
@@ -427,6 +431,45 @@ static int bt_bridge_open(FAR struct bt_driver_s *drv)
return OK;
}
static int bt_bridge_send_reset_response(FAR struct bt_driver_s *driver)
{
uint8_t reset_response[6];
reset_response[0] = BT_HCI_EVT_CMD_COMPLETE;
reset_response[1] = 0x04;
reset_response[2] = 0x01;
reset_response[3] = BT_HCI_OP_RESET & 0xff;
reset_response[4] = (BT_HCI_OP_RESET >> 8) & 0xff;
reset_response[5] = BT_HCI_SUCCESS;
return bt_netdev_receive(driver, BT_EVT, reset_response,
sizeof(reset_response));
}
static bool bt_bridge_filter_command(FAR struct bt_bridge_s *bridge,
FAR struct bt_driver_s *driver,
FAR uint8_t *data)
{
uint16_t opcode = BT_LE162HOST(((uint16_t *)data)[0]);
switch (opcode)
{
case BT_HCI_OP_RESET:
if (bridge->dispatched[BT_FILTER_CMD_RESET])
{
bt_bridge_send_reset_response(driver);
return true;
}
bridge->dispatched[BT_FILTER_CMD_RESET] = true;
break;
default:
break;
}
return false;
}
static int bt_bridge_send(FAR struct bt_driver_s *drv,
enum bt_buf_type_e type,
FAR void *data, size_t len)
@@ -438,6 +481,13 @@ static int bt_bridge_send(FAR struct bt_driver_s *drv,
irqstate_t flags;
flags = enter_critical_section();
if (bt_bridge_filter_command(bridge, drv, data))
{
leave_critical_section(flags);
return len;
}
if (bt_filter_can_send(&device->filter, type, data, len))
{
leave_critical_section(flags);