1 files changed, 72 insertions, 0 deletions
diff --git a/source/application/hal/include/data_psn.h b/source/application/hal/include/data_psn.h
new file mode 100644
index 0000000..8c14c77
--- /dev/null
+++ b/source/application/hal/include/data_psn.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2021 Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef DATA_PSN_H
+#define DATA_PSN_H
+
+/**
+ * This file is the top level abstraction for the data presentation module
+ **/
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+/* Structure to encompass the data presentation module and it's methods */
+typedef struct data_presentation_module {
+    int inited;                 /**< initialised or not */
+    char system_name[8];        /**< name of the system in use */
+    int (* system_init)(void);  /**< pointer to init function */
+
+    /** Pointer to the image presentation function */
+    int (* present_data_image)(uint8_t *data, const uint32_t width,
+        const uint32_t height, const uint32_t channels,
+        const uint32_t pos_x, const uint32_t pos_y,
+        const uint32_t downsample_factor);
+
+    /* Pointer to text presentation function */
+    int (* present_data_text)(const char *str, const size_t str_sz,
+        const uint32_t pos_x, const uint32_t pos_y,
+        const bool allow_multiple_lines);
+
+    /* Pointer to box presentation function */
+    int (* present_box)(const uint32_t pos_x, const uint32_t pos_y,
+        const uint32_t width, const uint32_t height, const uint16_t color);
+
+    /* Pointer to clear presentation function */
+    int (* clear)(const uint16_t color);
+
+    /* Pointer to set text color presentation function */
+    int (* set_text_color)(const uint16_t color);
+} data_psn_module;
+
+
+/**
+ * @brief           Initialises the data presentation system.
+ * @param[in,out]   module  Pointer to a pre-allocated data
+ *                          presentation structure object.
+ * @return          0 if successful, error code otherwise.
+ **/
+int data_psn_system_init(data_psn_module *module);
+
+/**
+ * @brief           Releases the data presentation system.
+ * @param[in,out]   module  Pointer to a pre-allocated data
+ *                          presentation structure object.
+ * @return          0 if successful, error code otherwise.
+ **/
+int data_psn_system_release(data_psn_module *module);
+
+#endif /* DATA_PSN_H */