:new: 块设备驱动的一些数据结构

kernel/driver/disk/block_device.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#include "../../common/glib.h"
+#include "stdint.h"
+
+struct block_device_operation
+{
+    long (*open)();
+    long (*close)();
+    long (*ioctl)(long cmd, long arg);
+    long (*transfer)(long cmd, ul LBA_start, ul count, uchar* buffer);
+};
+
+/**
+ * @brief 块设备请求队列内的packet
+ * 
+ */
+struct block_device_request_packet
+{
+    uchar cmd;
+    uint32_t LBA_start;
+    uint32_t count;
+    uchar *buffer;
+
+    void (*end_handler)(ul num, ul arg);
+
+    struct List list;
+};
+
+/**
+ * @brief 块设备的请求队列
+ * 
+ */
+struct block_device_request_queue
+{
+    struct List queue_list;
+    struct block_device_request_packet * entry;
+    ul request_count;
+};