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wireless/bluetooth:add btsnoop for bt bridge

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Signed-off-by: chengkai <chengkai@xiaomi.com>
This commit is contained in:
chengkai 2022-08-26 20:16:25 +08:00 committed by Xiang Xiao
parent 7a7b5e5779
commit 40f7872668
2 changed files with 78 additions and 9 deletions
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7
drivers/wireless/bluetooth/Kconfig
View File

@ -59,6 +59,13 @@ config BLUETOOTH_BRIDGE
---help---
Enable Bluetooth BT/BLE Dual Mode Bridge Driver.
config BLUETOOTH_BRIDGE_BTSNOOP
bool "Bluetooth bridge btsnoop support"
default n
depends on BLUETOOTH_BRIDGE
---help---
Enable Bluetooth hci btsnoop log
config BLUETOOTH_NULL
bool "NULL Bluetooth device"
default n

80
drivers/wireless/bluetooth/bt_bridge.c
View File

@ -66,6 +66,9 @@ struct bt_bridge_s
{
struct bt_bridge_device_s device[BT_FILTER_TYPE_COUNT];
FAR struct bt_driver_s *driver;
#ifdef CONFIG_BLUETOOTH_BRIDGE_BTSNOOP
FAR struct snoop_s *snoop;
#endif /* CONFIG_BLUETOOTH_BRIDGE_BTSNOOP */
uint8_t refs;
};
@ -421,8 +424,17 @@ static int bt_bridge_send(FAR struct bt_driver_s *drv,
flags = enter_critical_section();
if (bt_filter_can_send(&device->filter, type, data, len))
{
int ret;
leave_critical_section(flags);
return driver->send(driver, type, data, len);
ret = driver->send(driver, type, data, len);
#ifdef CONFIG_BLUETOOTH_BRIDGE_BTSNOOP
snoop_dump(bridge->snoop, data - drv->head_reserve,
len + drv->head_reserve, 0,
SNOOP_DIRECTION_FLAG_SENT);
#endif /* CONFIG_BLUETOOTH_BRIDGE_BTSNOOP */
return ret;
}
leave_critical_section(flags);
@ -459,8 +471,17 @@ static int bt_bridge_receive(FAR struct bt_driver_s *drv,
driver = &device->driver;
if (bt_filter_can_recv(&device->filter, type, data, len))
{
int ret;
leave_critical_section(flags);
return bt_netdev_receive(driver, type, data, len);
ret = bt_netdev_receive(driver, type, data, len);
#ifdef CONFIG_BLUETOOTH_BRIDGE_BTSNOOP
snoop_dump(bridge->snoop, data - drv->head_reserve,
len + drv->head_reserve, 0,
SNOOP_DIRECTION_FLAG_RECV);
#endif /* CONFIG_BLUETOOTH_BRIDGE_BTSNOOP */
return ret;
}
}
@ -476,14 +497,55 @@ static int bt_bridge_ioctl(FAR struct bt_driver_s *drv, int cmd,
FAR struct bt_bridge_s *bridge = device->bridge;
int ret;
switch (cmd)
{
#ifdef CONFIG_BLUETOOTH_BRIDGE_BTSNOOP
case SIOCBTSNOOPOPEN:
{
FAR const char *filename = (FAR const char *)((uintptr_t)arg);
FAR struct snoop_s *snoop = (FAR struct snoop_s *)
kmm_zalloc(sizeof(struct snoop_s));
if (!snoop)
{
return -ENOMEM;
}
if (bridge->driver->ioctl)
{
ret = bridge->driver->ioctl(drv, cmd, arg);
}
else
{
ret = -ENOTTY;
ret = snoop_open(snoop, filename, SNOOP_DATALINK_HCI_UART, true);
if (ret == OK)
{
bridge->snoop = snoop;
}
else
{
kmm_free(snoop);
}
break;
}
case SIOCBTSNOOPCLOSE:
{
FAR struct snoop_s *snoop = bridge->snoop;
bridge->snoop = NULL;
ret = snoop_close(snoop);
kmm_free(snoop);
break;
}
#endif /* CONFIG_BLUETOOTH_BRIDGE_BTSNOOP */
/* hci ioctl operation */
default:
{
if (bridge->driver->ioctl)
{
ret = bridge->driver->ioctl(drv, cmd, arg);
}
else
{
ret = -ENOTTY;
}
}
}
return ret;