1 files changed, 61 insertions, 0 deletions
diff --git a/libmaple/dma_private.h b/libmaple/dma_private.h
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+++ b/libmaple/dma_private.h
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+/******************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2012 LeafLabs, LLC.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*****************************************************************************/
+
+#ifndef _LIBMAPLE_DMA_PRIVATE_H_
+#define _LIBMAPLE_DMA_PRIVATE_H_
+
+#include <libmaple/dma.h>
+#include <libmaple/libmaple_types.h>
+
+/*
+ * IRQ handling
+ */
+
+/* Wrap this in an ifdef to shut up GCC. (We provide DMA_GET_HANDLER
+ * in the series support files, which need dma_irq_handler().) */
+#ifdef DMA_GET_HANDLER
+static __always_inline void dma_irq_handler(dma_dev *dev, dma_tube tube) {
+    void (*handler)(void) = DMA_GET_HANDLER(dev, tube);
+    if (handler) {
+        handler();
+        dma_clear_isr_bits(dev, tube); /* in case handler doesn't */
+    }
+}
+#endif
+
+/*
+ * Conveniences for dealing with tube sources/destinations
+ */
+
+enum dma_atype {
+    DMA_ATYPE_MEM,
+    DMA_ATYPE_PER,
+    DMA_ATYPE_OTHER,
+};
+
+enum dma_atype _dma_addr_type(__io void *addr);
+
+#endif