1 files changed, 105 insertions, 0 deletions
diff --git a/kernel/testcases/dma/kernel_space/dma_test_lib.h b/kernel/testcases/dma/kernel_space/dma_test_lib.h
new file mode 100644
index 0000000..fed1a3d
--- /dev/null
+++ b/kernel/testcases/dma/kernel_space/dma_test_lib.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2007-2010
+ * Author: Per Friden <per.friden@stericsson.com> for ST-Ericsson
+ * Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/scatterlist.h>
+#include <linux/mutex.h>
+#include <linux/dmaengine.h>
+
+#define MAX_NAME_LEN 128
+
+struct buflist {
+	spinlock_t lock;
+
+	struct dma_async_tx_descriptor **desc;
+	char name[MAX_NAME_LEN];
+	int *list_size;
+	dma_addr_t *list_dst_phy;
+	dma_addr_t *list_src_phy;
+	u8 **list_buf_dst;
+	u8 **list_buf_dst_real;
+	u8 **list_buf_src;
+	struct scatterlist *sgl_dst;
+	struct scatterlist *sgl_src;
+	unsigned int sgl_dst_len;
+	unsigned int sgl_src_len;
+
+	unsigned long dma_engine_flags;
+	bool is_dma_prepared;
+	u32 list_len;
+
+	struct dma_chan *dma_chan;
+	dma_cookie_t *cookie;
+
+	void (*callback)(struct buflist *bf);
+	struct workqueue_struct *wq;
+	u32 finished_jobs;
+	u32 sent_jobs;
+
+	struct delayed_work timed_out;
+	int timeout_len;
+	u32 end_padding;
+};
+
+/* Initiate dma test
+ *
+ * returns 0 on success otherwise none zero
+ */
+int dmatest_init(void);
+
+
+/** Creates a buffer list
+ * @length specifies length of buffer and size list
+ *
+ */
+int dmatest_buflist_create(struct buflist *buflist, int length,
+			   int end_padding,
+			   char *name, unsigned long dma_engine_flags,
+			   int timeout, bool request_phy_chan, struct dma_chan *dma_chan);
+
+/* Destroys a buffer list, calls dmatest_buflist_free if list is != NULL */
+void dmatest_buflist_destroy(struct buflist *buflist);
+
+/* Allocates buffers according to size list and writes a pattern to the buffer,
+ * dmatest_sizelist_randomize or dmatest_sizelist_set must be
+ * called before this function
+ */
+void dmatest_buflist_alloc(struct buflist *buflist);
+
+/* Frees the buffers allocate by dmatest_buflist_alloc */
+void dmatest_buflist_free(struct buflist *buflist);
+
+/* Initialize size list with random values between min and max */
+void dmatest_sizelist_randomize(struct buflist *buflist, u32 min, u32 max, int align);
+
+/* Initialize size list with value */
+void dmatest_sizelist_set(struct buflist *buflist, u32 value, int align);
+
+/* Start sending the buflist to DMA as many single jobs, calls callback when done */
+void dmatest_buflist_start_single(struct buflist *buflist,
+				  void (*callback)(struct buflist *bf));
+
+/* Start sending the buflist to DMA as a scatter-gatter list, calls callback when done */
+void dmatest_buflist_start_sg(struct buflist *buflist,
+			      void (*callback)(struct buflist *bf));
+
+/* Verify the buffer according to the pattern written by dmatest_buflist_alloc.
+ * Returns 0 if ok otherwise -(index +1)
+ */
+int dmatest_buflist_payload_check(struct buflist *buflist);
+
+/* prints the difference between TX and RX for buffer number buf_index */
+void dmatest_buflist_payload_printdiff(struct buflist *buflist,
+				       u32 buf_index);
+
+void dmatest_buflist_reset_nbr_finished(struct buflist *buflist);
+
+int dmatest_buflist_get_nbr_finished(struct buflist *buflist);