feat: moved file system code around

2021-08-12 21:44:10 +02:00
parent c172a5cb8a
commit f047e692c9
9 changed files with 9 additions and 9 deletions
--- a/include/myke/vfs/blockdev.h
+++ b/include/myke/vfs/blockdev.h
@@ -0,0 +1,75 @@
+//
+// Created by rick on 06-02-21.
+//
+
+#ifndef NEW_KERNEL_BLOCKDEV_H
+#define NEW_KERNEL_BLOCKDEV_H
+
+#include <stdbool.h>
+#include <sys/types.h>
+#include <myke/driver.h>
+
+#define BLOCK_DEV_ACCESS_OK  0
+#define BLOCK_DEV_ACCESS_ERR 1
+
+#define BLOCK_DEV_DIRECTION_READ    0
+#define BLOCK_DEV_DIRECTION_WRITE   1
+
+#define BLOCK_DEV_DRIVER_CHECK_OK       0
+#define BLOCK_DEV_DRIVER_CHECK_NO_MATCH 1
+
+#define BLOCK_DEV_REGISTER_DRIVER_OK 0
+#define BLOCK_DEV_REGISTER_DRIVER_FULL 1
+
+#define BLOCK_DEV_REGISTER_OK 0
+#define BLOCK_DEV_REGISTER_FULL 1
+
+
+typedef struct block_device block_device_t;
+
+typedef uint8_t (*block_device_driver_check_device)(const block_device_t *device, uint8_t *first_sector);
+
+typedef uint8_t (*block_device_driver_free)(const block_device_t *device);
+
+typedef uint8_t (*block_device_access)(const block_device_t *device, uint8_t direction, uint32_t lba, uint8_t sectors,
+                                       void *target);
+
+struct block_dev_driver {
+    char name[16];
+    struct {
+        uint8_t partitioning: 1;
+    } flags;
+    block_device_driver_check_device check_device;
+    block_device_driver_free free_device;
+} __attribute__((__aligned__(STRUCT_ALIGNMENT)));
+
+#define BLOCK_DEV_DRIVER(order) GENERIC_DRIVER(block_dev_driver, order)
+
+struct block_device {
+    struct {
+        uint8_t present: 1;
+        uint8_t scanned: 1;
+        uint8_t unreadable: 1;
+        uint8_t root_device: 1;
+        uint8_t driver_installed: 1;
+    } flags;
+    char identifier[16];
+    uint32_t num_lba;
+    uint16_t block_size;
+    block_device_access access;
+    struct block_dev_driver *driver;
+    void *device_info; // pointer to driver defined structure
+    // todo device info
+};
+
+uint8_t block_dev_register(block_device_t *device);
+
+void block_dev_free(block_device_t *device);
+
+void block_dev_start_task();
+
+void block_dev_print_info();
+
+bool block_dev_mount(char *identifier, char *driver);
+
+#endif //NEW_KERNEL_BLOCKDEV_H