1 use alloc::sync::Arc;
2 use system_error::SystemError;
3
4 use crate::driver::base::device::{bus::Bus, device_manager, Device};
5
6 use super::serio_bus;
7
8 /// 串行设备，实现该trait的设备实例挂载在serio总线上，同时应该实现Device trait
9 ///
10 /// 参考: https://code.dragonos.org.cn/xref/linux-6.1.9/include/linux/serio.h#20
11 pub trait SerioDevice: Device {
12 /// # 函数功能
13 ///
14 /// Serio设备写入数据
15 ///
16 /// ## 参数
17 ///
18 /// - data 写入的数据
19 ///
20 /// ## 返回值
21 ///
22 /// 无
write(&self, device: &Arc<dyn SerioDevice>, data: u8) -> Result<(), SystemError>23 fn write(&self, device: &Arc<dyn SerioDevice>, data: u8) -> Result<(), SystemError>;
24 /// Serio设备连接驱动时调用
open(&self, device: &Arc<dyn SerioDevice>) -> Result<(), SystemError>25 fn open(&self, device: &Arc<dyn SerioDevice>) -> Result<(), SystemError>;
26 /// Serio设备断开驱动时调用
close(&self, device: &Arc<dyn SerioDevice>) -> Result<(), SystemError>27 fn close(&self, device: &Arc<dyn SerioDevice>) -> Result<(), SystemError>;
28 /// Serio设备初始化时调用
start(&self, device: &Arc<dyn SerioDevice>) -> Result<(), SystemError>29 fn start(&self, device: &Arc<dyn SerioDevice>) -> Result<(), SystemError>;
30 /// Serio设备销毁时调用
stop(&self, device: &Arc<dyn SerioDevice>) -> Result<(), SystemError>31 fn stop(&self, device: &Arc<dyn SerioDevice>) -> Result<(), SystemError>;
32 }
33
34 #[inline(always)]
serio_device_manager() -> &'static SerioDeviceManager35 pub fn serio_device_manager() -> &'static SerioDeviceManager {
36 &SerioDeviceManager
37 }
38
39 pub struct SerioDeviceManager;
40
41 impl SerioDeviceManager {
42 /// # 函数功能
43 /// 注册Serio设备
44 ///
45 /// ## 参数
46 /// - device 待注册的设备
47 ///
48 /// ## 返回值
49 /// 无
register_port(&self, device: Arc<dyn SerioDevice>) -> Result<(), SystemError>50 pub fn register_port(&self, device: Arc<dyn SerioDevice>) -> Result<(), SystemError> {
51 self.init_port(device)
52 }
53
54 /// # 函数功能
55 /// 初始化Serio设备
56 ///
57 /// ## 参数
58 /// - device 待初始化的Serio设备
59 ///
60 /// ## 返回值
61 /// 无
62 ///
63 /// todo：https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/input/serio/serio.c#494
init_port(&self, device: Arc<dyn SerioDevice>) -> Result<(), SystemError>64 pub fn init_port(&self, device: Arc<dyn SerioDevice>) -> Result<(), SystemError> {
65 device.set_bus(Some(Arc::downgrade(&(serio_bus() as Arc<dyn Bus>))));
66 device_manager().add_device(device.clone() as Arc<dyn Device>)?;
67 Ok(())
68 }
69 }
70