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Diffstat (limited to 'ext/TARGET_LPC1768/TARGET_NXP/TARGET_LPC176X/gpio_object.h')
-rw-r--r--ext/TARGET_LPC1768/TARGET_NXP/TARGET_LPC176X/gpio_object.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/ext/TARGET_LPC1768/TARGET_NXP/TARGET_LPC176X/gpio_object.h b/ext/TARGET_LPC1768/TARGET_NXP/TARGET_LPC176X/gpio_object.h
new file mode 100644
index 0000000..0c465a9
--- /dev/null
+++ b/ext/TARGET_LPC1768/TARGET_NXP/TARGET_LPC176X/gpio_object.h
@@ -0,0 +1,56 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 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_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);
+ 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);
+ 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