Diff: targets/TARGET_NXP/TARGET_LPC2460/gpio_object.h

Revision:

149:156823d33999

Parent:

144:ef7eb2e8f9f7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_NXP/TARGET_LPC2460/gpio_object.h	Fri Oct 28 11:17:30 2016 +0100
@@ -0,0 +1,59 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2015 ARM Limited
+ *
+ * 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 MBED_GPIO_OBJECT_H
+#define MBED_GPIO_OBJECT_H
+
+#include "mbed_assert.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    PinName  pin;
+    uint32_t mask;
+
+    __IO uint32_t *reg_dir;
+    __IO uint32_t *reg_mask;
+    __IO uint32_t *reg_set;
+    __IO uint32_t *reg_clr;
+    __I  uint32_t *reg_in;
+} gpio_t;
+
+static inline void gpio_write(gpio_t *obj, int value) {
+    MBED_ASSERT(obj->pin != (PinName)NC);
+    *obj->reg_mask &= ~obj->mask;
+    if (value)
+        *obj->reg_set = obj->mask;
+    else
+        *obj->reg_clr = obj->mask;
+}
+
+static inline int gpio_read(gpio_t *obj) {
+    MBED_ASSERT(obj->pin != (PinName)NC);
+    *obj->reg_mask &= ~obj->mask;
+    return ((*obj->reg_in & obj->mask) ? 1 : 0);
+}
+
+static inline int gpio_is_connected(const gpio_t *obj) {
+    return obj->pin != (PinName)NC;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif