Import Mbed OS hard-float snapshot

targets/TARGET_Cypress/TARGET_PSOC6/cy_port_api.c

@@ -0,0 +1,84 @@
+/* mbed Microcontroller Library
+ * 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 "port_api.h"
+#include "gpio_api.h"
+
+#if DEVICE_PORTIN || DEVICE_PORTOUT
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
+{
+    gpio_t gpio;
+    for (uint8_t pin = 0; pin < 8; pin++) {
+        if ((1 << pin) & mask) {
+            gpio_init(&gpio, port_pin(port, pin));
+            gpio_dir(&gpio, dir);
+        }
+    }
+    obj->port = port;
+    obj->mask = mask;
+    obj->drive_mode = gpio.drive_mode;
+    obj->direction = gpio.direction;
+}
+
+void port_mode(port_t *obj, PinMode mode)
+{
+    gpio_t gpio = {.direction = obj->direction, .drive_mode = obj->drive_mode};
+    for (uint8_t pin = 0; pin < 8; pin++) {
+        if ((1 << pin) & obj->mask) {
+            gpio.pin = port_pin(obj->port, pin);
+            gpio_mode(&gpio, mode);
+        }
+    }
+}
+
+void port_dir(port_t *obj, PinDirection dir)
+{
+    gpio_t gpio = {.direction = obj->direction, .drive_mode = obj->drive_mode};
+    for (uint8_t pin = 0; pin < 8; pin++) {
+        if ((1 << pin) & obj->mask) {
+            gpio.pin = port_pin(obj->port, pin);
+            gpio_dir(&gpio, dir);
+        }
+    }
+}
+
+void port_write(port_t *obj, int value)
+{
+    GPIO_PRT_Type *port_type = Cy_GPIO_PortToAddr(obj->port);
+    if (obj->mask == 0xff) {
+        // Optimization for when all pins on the port is used.
+        port_type->OUT = value;
+    } else {
+        port_type->OUT_SET = value & obj->mask;
+        port_type->OUT_CLR = (~value) & obj->mask;
+    }
+}
+
+int port_read(port_t *obj)
+{
+    return Cy_GPIO_PortToAddr(obj->port)->IN & obj->mask;
+}
+
+#ifdef __cplusplus
+}
+#endif
+#endif