Changeset fd6bd6d in mainline for uspace/lib/c/include/ddi.h

Timestamp:

2011-12-14T17:09:25Z (12 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9916841

Parents:

b402dadd

Message:

add stubs for DMA memory management functions (not working yet)

File:

• uspace/lib/c/include/ddi.h (modified) (1 diff)

uspace/lib/c/include/ddi.h

@@ -40 +40 @@
 #include <task.h>
 
+typedef struct {
+        /** Physical memory */
+        void *phys;
+        
+        /** Virtual memory */
+        void *virt;
+        
+        /** Size in pages */
+        size_t size;
+        
+        /** Mapping flags */
+        unsigned int flags;
+} dmamem_t;
+
 extern int device_assign_devno(void);
 extern int physmem_map(void *, void *, size_t, unsigned int);
+extern int dmamem_map(dmamem_t *, size_t, unsigned int, unsigned int);
+extern int dmamem_unmap(dmamem_t *);
+extern int dmamem_lock(void *, void **, size_t);
+extern int dmamem_unlock(void *, size_t);
 extern int iospace_enable(task_id_t, void *, unsigned long);
 extern int pio_enable(void *, size_t, void **);