Changeset 9426c1a3 in mainline for libc/generic/ddi.c

Timestamp:

2006-04-14T09:08:45Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

523fad8

Parents:

6a347b1e

Message:

Userspace support for SYS_ENABLE_IOSPACE syscall.

File:

• libc/generic/ddi.c (modified) (2 diffs)

libc/generic/ddi.c

@@ -49 +49 @@
 {
         task_id_t task_id;
-        ddi_arg_t arg;
+        ddi_memarg_t arg;
 
         arg.task_id = id;
@@ -59 +59 @@
         return __SYSCALL1(SYS_MAP_PHYSMEM, (sysarg_t) &arg);
 }
+
+/** Enable I/O space range to task.
+ *
+ * Caller of this function must have the IO_MEM_MANAGER capability.
+ *
+ * @param id Task ID.
+ * @param ioaddr Starting address of the I/O range.
+ * @param size Size of the range.
+ *
+ * @return 0 on success, EPERM if the caller lacks the CAP_IO_MANAGER capability,
+ *         ENOENT if there is no task with specified ID and ENOMEM if there
+ *         was some problem in allocating memory.
+ */
+int enable_iospace(task_id_t id, void *ioaddr, unsigned long size)
+{
+        task_id_t task_id;
+        ddi_ioarg_t arg;
+
+        arg.task_id = id;
+        arg.ioaddr = ioaddr;
+        arg.size = size;
+
+        return __SYSCALL1(SYS_ENABLE_IOSPACE, (sysarg_t) &arg);
+}