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| author | Vasil Zlatanov <v@skozl.com> | 2017-05-03 16:30:16 +0100 |
|---|---|---|
| committer | Vasil Zlatanov <v@skozl.com> | 2017-05-03 16:30:16 +0100 |
| commit | a6ed1742539c62186fb903017b52dd48f145ae4f (patch) | |
| tree | e9f49f0437e1f260b276b45fddcb66ea524f49e3 /ext/PortInOut.h | |
| download | e2-switch-a6ed1742539c62186fb903017b52dd48f145ae4f.tar.gz e2-switch-a6ed1742539c62186fb903017b52dd48f145ae4f.tar.bz2 e2-switch-a6ed1742539c62186fb903017b52dd48f145ae4f.zip | |
Add template and build environment.
Diffstat (limited to 'ext/PortInOut.h')
| -rw-r--r-- | ext/PortInOut.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/ext/PortInOut.h b/ext/PortInOut.h new file mode 100644 index 0000000..909490f --- /dev/null +++ b/ext/PortInOut.h @@ -0,0 +1,104 @@ +/* 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_PORTINOUT_H
+#define MBED_PORTINOUT_H
+
+#include "platform.h"
+
+#if DEVICE_PORTINOUT
+
+#include "port_api.h"
+
+namespace mbed {
+
+/** A multiple pin digital in/out used to set/read multiple bi-directional pins
+ */
+class PortInOut {
+public:
+
+ /** Create an PortInOut, connected to the specified port
+ *
+ * @param port Port to connect to (Port0-Port5)
+ * @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
+ */
+ PortInOut(PortName port, int mask = 0xFFFFFFFF) {
+ port_init(&_port, port, mask, PIN_INPUT);
+ }
+
+ /** Write the value to the output port
+ *
+ * @param value An integer specifying a bit to write for every corresponding port pin
+ */
+ void write(int value) {
+ port_write(&_port, value);
+ }
+
+ /** Read the value currently output on the port
+ *
+ * @returns
+ * An integer with each bit corresponding to associated port pin setting
+ */
+ int read() {
+ return port_read(&_port);
+ }
+
+ /** Set as an output
+ */
+ void output() {
+ port_dir(&_port, PIN_OUTPUT);
+ }
+
+ /** Set as an input
+ */
+ void input() {
+ port_dir(&_port, PIN_INPUT);
+ }
+
+ /** Set the input pin mode
+ *
+ * @param mode PullUp, PullDown, PullNone, OpenDrain
+ */
+ void mode(PinMode mode) {
+ port_mode(&_port, mode);
+ }
+
+ /** A shorthand for write()
+ */
+ PortInOut& operator= (int value) {
+ write(value);
+ return *this;
+ }
+
+ PortInOut& operator= (PortInOut& rhs) {
+ write(rhs.read());
+ return *this;
+ }
+
+ /** A shorthand for read()
+ */
+ operator int() {
+ return read();
+ }
+
+private:
+ port_t _port;
+};
+
+} // namespace mbed
+
+#endif
+
+#endif
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