Changeset c5be39b in mainline for uspace/lib/drv/generic/driver.c

Timestamp:

2011-08-29T21:53:18Z (14 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

5f6e25e

Parents:

bfe7867

Message:

Add interface for allocating driver-specific device and function data.

File:

• uspace/lib/drv/generic/driver.c (modified) (2 diffs)

uspace/lib/drv/generic/driver.c

@@ -699 +699 @@
 }
 
+/** Allocate driver-specific device data. */
+extern void *ddf_dev_data_alloc(ddf_dev_t *dev, size_t size)
+{
+        void *data;
+
+        assert(dev->driver_data == NULL);
+
+        data = calloc(1, size);
+        if (data == NULL)
+                return NULL;
+
+        dev->driver_data = data;
+        return data;
+}
+
 /** Create a DDF function node.
  *
@@ -744 +759 @@
 
         return fun;
+}
+
+/** Allocate driver-specific function data. */
+extern void *ddf_fun_data_alloc(ddf_fun_t *fun, size_t size)
+{
+        void *data;
+
+        assert(fun->bound == false);
+        assert(fun->driver_data == NULL);
+
+        data = calloc(1, size);
+        if (data == NULL)
+                return NULL;
+
+        fun->driver_data = data;
+        return data;
 }