|
@@ -0,0 +1,28 @@
|
|
|
+/*
|
|
|
+ * This file is subject to the terms and conditions of the GNU General Public
|
|
|
+ * License. See the file "COPYING" in the main directory of this archive
|
|
|
+ * for more details.
|
|
|
+ *
|
|
|
+ * Copyright (C) 2004 by Ralf Baechle
|
|
|
+ *
|
|
|
+ * Dummy ISA DMA functions for systems that don't have ISA but share drivers
|
|
|
+ * with ISA such as legacy free PCI.
|
|
|
+ */
|
|
|
+#include <linux/errno.h>
|
|
|
+#include <linux/module.h>
|
|
|
+#include <linux/spinlock.h>
|
|
|
+
|
|
|
+DEFINE_SPINLOCK(dma_spin_lock);
|
|
|
+
|
|
|
+int request_dma(unsigned int dmanr, const char * device_id)
|
|
|
+{
|
|
|
+ return -EINVAL;
|
|
|
+}
|
|
|
+
|
|
|
+void free_dma(unsigned int dmanr)
|
|
|
+{
|
|
|
+}
|
|
|
+
|
|
|
+EXPORT_SYMBOL(dma_spin_lock);
|
|
|
+EXPORT_SYMBOL(request_dma);
|
|
|
+EXPORT_SYMBOL(free_dma);
|