新增SysFS (#250)

* 添加sysfs

* 注册sysfs

* 添加sysfs相关

* 添加rust-anlyzer辅助配置

* 将设备与sysfs相关联

* 添加单独的文件管理sysfs下的文件夹

kernel/src/driver/base/device/bus.rs

@@ -1,5 +1,9 @@
-use super::{driver::Driver, Device, DeviceState, IdTable};
-use crate::libs::spinlock::SpinLock;
+use super::{driver::Driver, Device, DeviceError, DeviceState, IdTable};
+use crate::{
+    filesystem::sysfs::{self, SYS_BUS_INODE},
+    kdebug,
+    libs::spinlock::SpinLock,
+};
 use alloc::{collections::BTreeMap, sync::Arc};
 use core::fmt::Debug;
 use lazy_static::lazy_static;
@@ -54,7 +58,30 @@ pub trait BusDriver: Driver {
 }
 
 /// @brief: 总线设备trait，所有总线都应实现该trait
-pub trait Bus: Device {}
+pub trait Bus: Device {
+    /// @brief: 注册bus，在sysfs中生成相应文件夹
+    /// @parameter name: 文件夹名
+    /// @return: 注册成功，返回()，注册失败，返回错误码
+    fn register_bus(&self, name: &str) -> Result<(), DeviceError> {
+        match self.register_device(name) {
+            Ok(_) => {
+                let bus = sysfs::bus::bus_register(name).unwrap();
+                kdebug!(
+                    "After register_bus: ls /sys/bus/: {:?}",
+                    SYS_BUS_INODE().list()
+                );
+                match sysfs::bus::bus_init(&bus) {
+                    Ok(_) => {
+                        kdebug!("After register_bus: ls /sys/bus/{}: {:?}", name, bus.list());
+                        return Ok(());
+                    }
+                    Err(_) => Err(DeviceError::RegisterError),
+                }
+            }
+            Err(err) => Err(err),
+        }
+    }
+}
 
 /// @brief: 总线管理结构体
 #[derive(Debug, Clone)]

kernel/src/driver/base/device/mod.rs

@@ -1,3 +1,4 @@
+use crate::filesystem::sysfs::devices::device_register;
 use core::{any::Any, fmt::Debug};
 
 pub mod bus;
@@ -49,6 +50,7 @@ pub enum DeviceError {
     InitializeFailed,  // 初始化错误
     NoDeviceForDriver, // 没有合适的设备匹配驱动
     NoDriverForDevice, // 没有合适的驱动匹配设备
+    RegisterError,     // 注册失败
 }
 
 /// @brief: 将u32类型转换为设备状态类型
@@ -84,4 +86,14 @@ pub trait Device: Any + Send + Sync + Debug {
     /// @parameter: None
     /// @return: 该设备唯一标识
     fn get_id_table(&self) -> IdTable;
+
+    /// @brief: 设备注册
+    /// @parameter: name: 设备名
+    /// @return: 操作成功，返回()，操作失败，返回错误码
+    fn register_device(&self, name: &str) -> Result<(), DeviceError> {
+        match device_register(name) {
+            Ok(_) => Ok(()),
+            Err(_) => Err(DeviceError::RegisterError),
+        }
+    }
 }

kernel/src/driver/base/platform/mod.rs

@@ -345,6 +345,7 @@ pub fn platform_bus_init() {
         BUS_PLATFORM_DEVICE.clone(),
     );
     BUS_PLATFORM_DEVICE.set_state(BusState::Initialized);
+    let _ = BUS_PLATFORM_DEVICE.register_bus("platform");
 }
 
 #[no_mangle]