1 files changed, 67 insertions, 0 deletions
diff --git a/debian/ti-timl/usr/src/timl/src/common/cnn/timlCNNMaxPoolingBackPropagation.c b/debian/ti-timl/usr/src/timl/src/common/cnn/timlCNNMaxPoolingBackPropagation.c
new file mode 100644
index 0000000..c0f5cca
--- /dev/null
+++ b/debian/ti-timl/usr/src/timl/src/common/cnn/timlCNNMaxPoolingBackPropagation.c
@@ -0,0 +1,67 @@
+/******************************************************************************/
+/*!
+ * \file timlCNNMaxPoolingBackPropagation.c
+ */
+/* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *    Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ *    Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the
+ *    distribution.
+ *
+ *    Neither the name of Texas Instruments Incorporated nor the names of
+ *    its contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************/
+/*******************************************************************************
+ *
+ * INCLUDES
+ *
+ ******************************************************************************/
+#include "../api/timl.h"
+/******************************************************************************/
+/*!
+ * \ingroup       cnn
+ * \brief         Back propagate the gradient from the max pooling layer to the previous layer
+ * \param[in,out] layer Layer ptr
+ * \return        Error code
+ */
+/******************************************************************************/
+int timlCNNMaxPoolingBackPropagation(timlCNNLayer *layer)
+{
+   int deviceId;
+   int threadId;
+   deviceId = layer->cnn->deviceId;
+   threadId = layer->cnn->threadId;
+   timlUtilVectorResetFloat(layer->prev->delta, layer->prev->col*layer->prev->row*layer->prev->channel, 0.0, deviceId, threadId);
+   timlUtilUndoMaxPooling(layer->prev->delta, layer->poolingParams.maxIndex, layer->delta, layer->col*layer->row*layer->channel, deviceId, threadId);
+   return 0;
+}

diff --git a/debian/ti-timl/usr/src/timl/src/common/cnn/timlCNNMaxPoolingBackPropagation.c b/debian/ti-timl/usr/src/timl/src/common/cnn/timlCNNMaxPoolingBackPropagation.c new file mode 100644 index 0000000..c0f5cca --- /dev/null +++ b/debian/ti-timl/usr/src/timl/src/common/cnn/timlCNNMaxPoolingBackPropagation.c
@@ -0,0 +1,67 @@
	1	/******************************************************************************/
	2	/*!
	3	* \file timlCNNMaxPoolingBackPropagation.c
	4	*/
	5	/* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	*
	11	* Redistributions of source code must retain the above copyright
	12	* notice, this list of conditions and the following disclaimer.
	13	*
	14	* Redistributions in binary form must reproduce the above copyright
	15	* notice, this list of conditions and the following disclaimer in the
	16	* documentation and/or other materials provided with the
	17	* distribution.
	18	*
	19	* Neither the name of Texas Instruments Incorporated nor the names of
	20	* its contributors may be used to endorse or promote products derived
	21	* from this software without specific prior written permission.
	22	*
	23	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	24	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	25	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	26	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	27	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	28	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	29	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	30	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	31	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	32	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	33	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	34	*
	35	******************************************************************************/
	36
	37
	38	/*******************************************************************************
	39	*
	40	* INCLUDES
	41	*
	42	******************************************************************************/
	43
	44	#include "../api/timl.h"
	45
	46
	47	/******************************************************************************/
	48	/*!
	49	* \ingroup cnn
	50	* \brief Back propagate the gradient from the max pooling layer to the previous layer
	51	* \param[in,out] layer Layer ptr
	52	* \return Error code
	53	*/
	54	/******************************************************************************/
	55
	56	int timlCNNMaxPoolingBackPropagation(timlCNNLayer *layer)
	57	{
	58	int deviceId;
	59	int threadId;
	60
	61	deviceId = layer->cnn->deviceId;
	62	threadId = layer->cnn->threadId;
	63	timlUtilVectorResetFloat(layer->prev->delta, layer->prev->collayer->prev->rowlayer->prev->channel, 0.0, deviceId, threadId);
	64	timlUtilUndoMaxPooling(layer->prev->delta, layer->poolingParams.maxIndex, layer->delta, layer->collayer->rowlayer->channel, deviceId, threadId);
	65
	66	return 0;
	67	}