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driver/disk.h

@@ -1,33 +1,64 @@
+int data_from_disk(index, number_sectors, data_buffer, data_buffer_segment);
+int sec_stub();
+int stub(index, number_sectors, data_buffer, data_buffer_segment);
 
-int disk_service_read_data_from_disk(index, file_block_size, data_buffer, data_buffer_segment) 
+int stub(index, number_sectors, data_buffer, data_buffer_segment)
 long* index; 
-long file_block_size; 
+long number_sectors; 
 void* data_buffer;
 int data_buffer_segment;
 {
-    //fseek ( disk, (index * SECTOR_SIZE ), SEEK_SET ); // SEEK_SET start offset at index 0 and move 1 * SECTOR_SIZE, and write here.
-    //int read = fread(data_buffer, 1, (file_block_size * SECTOR_SIZE), disk);
-    //return read;
-	#asm
-	lsfs_load_data:
-    mov dl, [global_disk_identifier]
-    mov WORD [DAPACK.lba_addr_dw_low], ax
-    mov WORD [DAPACK.blkcnt],          0x01  
-    mov WORD [DAPACK.db_addr_segment], bx
-    mov WORD [DAPACK.db_addr_offset],  FSCI
-    mov si, DAPACK                          ; address of "disk address packet"
-    mov ah, 0x42                            ; READ
-    mov dl, [global_disk_identifier] 
-    int 0x13
-	
-	DAPACK:
-	  .dap_Size:         db  0x10   ; This is always 16 bytes (0x10)
-	  .rev_byte:         db  0x0    ; reserved byte, should always be zero
-	  .blkcnt:           dw  0x0    ; int 13 resets this to # of blocks actually read/written
-	  .db_addr_offset:   dw  0x0    ; memory buffer destination address (0:7c00)
-	  .db_addr_segment:  dw  0x0    ; in memory page zero
-	  .lba_addr_dw_low:  dd  0x0    ; put the lba to read in this spot
-	  .lba_addr_dw_high: dd  0x0    ; more storage bytes only for big lba's ( > 4 bytes )
-	#endasm
 
+	#asm
+	#define index 4[bp];
+    #define number_sectors 6[bp];
+    #define data_buffer 8[bp];
+    #define data_buffer_segment 10[bp];
+	
+	push bp
+    mov bp,sp
+	pusha
+	//mov ax, ds 
+	//call 0x0000:0x7C2A
+	//mov ax, DAPACK
+	//call 0x0000:0x7C2A
+	mov ax, #DAPACK
+	call 0x0000:0x7C2A
+
+	lsfs_load_data:
+	    mov ax, index
+	    mov WORD [DAPACK.lba_addr_dw_low], ax
+	    mov bx, number_sectors
+	    mov WORD [DAPACK.blkcnt],          bx
+	    mov cx, data_buffer_segment  
+	    mov WORD [DAPACK.db_addr_segment], cx
+	    mov dx, data_buffer;
+	    mov WORD [DAPACK.db_addr_offset],  dx
+	    mov si, #DAPACK                          ; address of
+	    mov ah, #0x42                            ; READ
+	    mov dl, [global_disk_identifier] 
+	    int #0x13
+	call 0x0000:0x7C2A	
+	popa
+	pop bp
+	ret
+
+
+	DAPACK:
+	  DAPACK.dap_Size:         db  0x10 
+	  DAPACK.rev_byte:         db  0x0  
+	  DAPACK.blkcnt:           dw  0x0  
+	  DAPACK.db_addr_offset:   dw  0x0  
+	  DAPACK.db_addr_segment:  dw  0x0  
+	  DAPACK.lba_addr_dw_low:  dd  0x0  
+	  DAPACK.lba_addr_dw_high: dd  0x0  
+	
+	global_disk_identifier: db 0x80
+
+	#endasm
+} 
+
+int sec_stub() 
+{
+	return 42;
 }