Import backup from 2004-07-12

kernel/fs/devices.c

@@ -0,0 +1,21 @@
+
+#include "fs/devices.h"
+#include "kernel.h"
+
+dev_driver_t drivers[256];
+char drivers_registered[256];	//0 (unregistered), 'b', 'c'
+
+
+void dev_init()
+{
+}
+
+
+int dev_register_major(major_t major, dev_driver_t *dev)
+{
+	if (registered[major])
+		return -1;	//driver already registered
+	drivers[major] = *dev;
+	return 0;
+}
+

kernel/fs/devices.h

@@ -0,0 +1,20 @@
+
+
+#ifndef __HOS_DEVICES_H__
+#define __HOS_DEVICES_H__ __HOS_DEVICES_H__
+
+typedef unsigned char major_t;
+typedef unsigned char minor_t;
+
+typedef struct {
+	int	(*block_read)(u32_t blockStart, u32_t blocks, void *buffer);
+	int	(*block_write)(u32_t blockStart, u32_t blocks, void *buffer);
+	int	(*char_read)(u64_t position);
+	int	(*char_write)(u64_t position, int value);
+} dev_driver_t;
+
+void dev_init();
+int dev_register_major(major_t major, dev_driver_t *dev);
+
+#endif
+