MLECO-2682: CMake and source refactoring.

MLECO-2930: logging macros were extracted from hal.h and used separately around the code.

MLECO-2931: arm_math lib introduced, cmsis-dsp removed from top level linkage.

MLECO-2915: platform related post-build steps.

Change-Id: Id718884e22f262a5c070ded3f3f5d4b048820147
Signed-off-by: alexander <alexander.efremov@arm.com>
diff --git a/source/hal/platform/simple/include/timer_simple_platform.h b/source/hal/platform/simple/include/timer_simple_platform.h
new file mode 100644
index 0000000..03d8245
--- /dev/null
+++ b/source/hal/platform/simple/include/timer_simple_platform.h
@@ -0,0 +1,54 @@
+/*
+ * 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 TIMER_SIMPLE_PLATFORM_H
+#define TIMER_SIMPLE_PLATFORM_H
+#include <stdint.h>
+
+/* Container for timestamp for simple platform. */
+typedef struct _generic_time_counter {
+    uint64_t    counter_systick;
+} base_time_counter;
+
+/**
+ * @brief   Resets the counters.
+ */
+void timer_reset(void);
+
+/**
+ * @brief   Gets the current counter values.
+ * @returns counter struct.
+ **/
+base_time_counter get_time_counter(void);
+
+/**
+ * @brief   Gets the cycle counts elapsed between start and end.
+ * @return  difference in counter values as 32 bit unsigned integer.
+ */
+uint64_t get_cycle_count_diff(base_time_counter *start, base_time_counter *end);
+
+/**
+ * @brief   Enables or triggers cycle counting mechanism, if required
+ *          by the platform.
+ */
+void start_cycle_counter(void);
+
+/**
+ * @brief   Stops cycle counting mechanism, if required by the platform.
+ */
+void stop_cycle_counter(void);
+
+#endif /* TIMER_SIMPLE_PLATFORM_H */