Import Mbed OS hard-float snapshot

targets/TARGET_Cypress/TARGET_PSOC6/cy_sleep_api.c

@@ -0,0 +1,49 @@
+/*
+ * mbed Microcontroller Library
+ * Copyright (c) 2017-2018 Future Electronics
+ * Copyright (c) 2019, Arm Limited and affiliates.
+ * 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 "cmsis.h"
+#include "device.h"
+#include "cyhal_syspm.h"
+#include "cy_us_ticker.h"
+
+#if DEVICE_SLEEP
+
+void hal_sleep(void)
+{
+    cyhal_syspm_sleep();
+}
+
+void hal_deepsleep(void)
+{
+#if DEVICE_LPTICKER
+    // A running timer will block DeepSleep, which would normally be
+    // good because we don't want the timer to accidentally
+    // lose counts. We don't care about that for us_ticker
+    // (If we're requesting deepsleep the upper layers already determined
+    // that they are okay with that), so explicitly stop the us_ticker
+    // timer before we go to sleep and start it back up afterwards.
+    cy_us_ticker_stop();
+    cyhal_syspm_deepsleep();
+    cy_us_ticker_start();
+#else
+    cyhal_syspm_sleep();
+#endif /* DEVICE_LPTICKER */
+}
+
+#endif /* DEVICE_SLEEP */