MLECO-2919: Restructuring to standardise HAL APIs
* LCD module component created (removed from individual
platform packs).
* retarget.c moved out into its own component that wraps
the uart module. It also have the native stub for
GetLine => paved the way for removing data_acq module
from profiles.
* shortened names for components' dir for npu and ta
* remove peripheral_memmap and peripheral_irqs headers
from platform_drivers.h. There should be no need for
these to be included in the top level now. These should
be private headers.
* cmsis_device moved in as a component.
* Pyenv created by set_up_default_resource.py will also
install packages that CMake's source generator needs.
TODO's:
* Remove timer from profiles (MLECO-3096)
Change-Id: I9d6ea2f4f291788f40a16ed507019563c8d7f205
diff --git a/source/hal/source/platform/simple/source/platform_drivers.c b/source/hal/source/platform/simple/source/platform_drivers.c
new file mode 100644
index 0000000..19c0057
--- /dev/null
+++ b/source/hal/source/platform/simple/source/platform_drivers.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2022 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.
+ */
+
+#include "platform_drivers.h"
+
+#include "uart_stdout.h"
+#include "peripheral_memmap.h"
+
+
+#include <string.h>
+
+#if defined(ARM_NPU)
+#include "ethosu_npu_init.h"
+
+#if defined(ETHOS_U_NPU_TIMING_ADAPTER_ENABLED)
+#include "ethosu_ta_init.h"
+#endif /* ETHOS_U_NPU_TIMING_ADAPTER_ENABLED */
+
+#endif /* ARM_NPU */
+
+int platform_init(void)
+{
+ SystemCoreClockUpdate(); /* From start up code */
+
+ /* UART init - will enable valid use of printf (stdout
+ * re-directed at this UART (UART0) */
+ UartStdOutInit();
+
+ info("%s: complete\n", __FUNCTION__);
+
+#if defined(ARM_NPU)
+
+ int state;
+
+ /* If the platform has timing adapter blocks along with Ethos-U core
+ * block, initialise them here. */
+#if defined(ETHOS_U_NPU_TIMING_ADAPTER_ENABLED)
+ int err;
+
+ if (0 != (err = arm_ethosu_timing_adapter_init())) {
+ return err;
+ }
+#endif /* ETHOS_U_NPU_TIMING_ADAPTER_ENABLED */
+
+ /* If Arm Ethos-U NPU is to be used, we initialise it here */
+ if (0 != (state = arm_ethosu_npu_init())) {
+ return state;
+ }
+
+#endif /* ARM_NPU */
+
+ /* Print target design info */
+ info("Target system design: %s\n", DESIGN_NAME);
+
+ return 0;
+}
+
+void platform_release(void)
+{
+ __disable_irq();
+}
+
+void platform_name(char* name, size_t size)
+{
+ strncpy(name, DESIGN_NAME, size);
+}
diff --git a/source/hal/source/platform/simple/source/timer_simple_platform.c b/source/hal/source/platform/simple/source/timer_simple_platform.c
new file mode 100644
index 0000000..f7917b0
--- /dev/null
+++ b/source/hal/source/platform/simple/source/timer_simple_platform.c
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2021-2022 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.
+ */
+#include "timer_simple_platform.h"
+
+#include "log_macros.h" /* Logging macros */
+#include "RTE_Components.h" /* For CPU related defintiions */
+
+#include <inttypes.h>
+
+static uint64_t cpu_cycle_count = 0; /* 64-bit cpu cycle counter */
+extern uint32_t SystemCoreClock; /* Expected to come from the cmsis-device lib */
+
+/**
+ * @brief Gets the system tick triggered cycle counter for the CPU.
+ * @return 64-bit counter value.
+ **/
+static uint64_t Get_SysTick_Cycle_Count(void);
+
+/**
+ * SysTick initialisation
+ */
+static int Init_SysTick(void);
+
+
+base_time_counter get_time_counter(void)
+{
+ base_time_counter t = {
+ .counter_systick = Get_SysTick_Cycle_Count()
+ };
+ debug("counter_systick: %" PRIu64 "\n", t.counter_systick);
+ return t;
+}
+
+void timer_reset(void)
+{
+ if (0 != Init_SysTick()) {
+ printf_err("Failed to initialise system tick config\n");
+ }
+ debug("system tick config ready\n");
+}
+
+uint64_t get_cycle_count_diff(base_time_counter *start,
+ base_time_counter *end)
+{
+ if (start->counter_systick > end->counter_systick) {
+ warn("start > end; counter might have overflown\n");
+ }
+ return end->counter_systick - start->counter_systick;
+}
+
+void start_cycle_counter(void)
+{
+ /* Add any custom requirement for this platform here */
+}
+
+void stop_cycle_counter(void)
+{
+ /* Add any custom requirement for this platform here */
+}
+
+
+void SysTick_Handler(void)
+{
+ /* Increment the cycle counter based on load value. */
+ cpu_cycle_count += SysTick->LOAD + 1;
+}
+
+/**
+ * Gets the current SysTick derived counter value
+ */
+static uint64_t Get_SysTick_Cycle_Count(void)
+{
+ uint32_t systick_val;
+
+ NVIC_DisableIRQ(SysTick_IRQn);
+ systick_val = SysTick->VAL & SysTick_VAL_CURRENT_Msk;
+ NVIC_EnableIRQ(SysTick_IRQn);
+
+ return cpu_cycle_count + (SysTick->LOAD - systick_val);
+}
+
+/**
+ * SysTick initialisation
+ */
+static int Init_SysTick(void)
+{
+ const uint32_t ticks_10ms = SystemCoreClock/100 + 1;
+ int err = 0;
+
+ /* Reset CPU cycle count value. */
+ cpu_cycle_count = 0;
+
+ /* Changing configuration for sys tick => guard from being
+ * interrupted. */
+ NVIC_DisableIRQ(SysTick_IRQn);
+
+ /* SysTick init - this will enable interrupt too. */
+ err = SysTick_Config(ticks_10ms);
+
+ /* Enable interrupt again. */
+ NVIC_EnableIRQ(SysTick_IRQn);
+
+ /* Wait for SysTick to kick off */
+ while (!err && !SysTick->VAL) {
+ __NOP();
+ }
+
+ return err;
+}
\ No newline at end of file