add nnom pack and example

components/ai/nnom/inc/layers/nnom_lstm_cell.h

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018-2020
+ * Jianjia Ma
+ * majianjia@live.com
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-08-24     Jianjia Ma   The first version
+ */
+
+#ifndef __NNOM_LSTM_CELL_H__
+#define __NNOM_LSTM_CELL_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "nnom_rnn.h"
+#include "nnom_activation.h"
+
+// a machine interface for configuration
+typedef struct _nnom_lstm_cell_config_t
+{
+	nnom_layer_config_t super;
+	nnom_tensor_t *weights;
+	nnom_tensor_t* recurrent_weights;
+	nnom_tensor_t *bias;
+	nnom_qformat_param_t q_dec_z, q_dec_h, q_dec_c; // z = iw + hw, c = cell state; h=output and memory
+	uint16_t units;
+} nnom_lstm_cell_config_t;
+
+
+typedef struct _nnom_lstm_cell_t
+{
+	nnom_rnn_cell_t super;
+
+	nnom_tensor_t* weights;
+	nnom_tensor_t* recurrent_weights;
+	nnom_tensor_t* bias;
+
+	// experimental, 
+	// iw: input x weight
+	// hw: hidden state x recurrent weight
+	// h: hidden state (memor)
+	// c: cell state
+	nnom_qformat_param_t q_dec_z, q_dec_h, q_dec_c;
+	nnom_qformat_param_t oshift_iw, oshift_hw, oshift_zc, bias_shift;
+
+} nnom_lstm_cell_t;
+
+// LSTM
+nnom_rnn_cell_t *lstm_cell_s(const nnom_lstm_cell_config_t* config);
+
+nnom_status_t lstm_cell_free(nnom_rnn_cell_t* cell);
+nnom_status_t lstm_cell_q7_q15_build(nnom_rnn_cell_t* cell);
+nnom_status_t lstm_cell_q7_q15_run(nnom_rnn_cell_t* cell);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __NNOM_LSTM_CELL_H__ */