Diff: api/RawSerial.h

Revision:

144:ef7eb2e8f9f7

Parent:

0:9b334a45a8ff

--- a/api/RawSerial.h	Tue Aug 02 14:07:36 2016 +0000
+++ b/api/RawSerial.h	Fri Sep 02 15:07:44 2016 +0100
@@ -1,90 +1,102 @@
-/* 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_RAW_SERIAL_H
-#define MBED_RAW_SERIAL_H
-
-#include "platform.h"
-
-#if DEVICE_SERIAL
-
-#include "SerialBase.h"
-#include "serial_api.h"
-
-namespace mbed {
-
-/** A serial port (UART) for communication with other serial devices
- * This is a variation of the Serial class that doesn't use streams,
- * thus making it safe to use in interrupt handlers with the RTOS.
- *
- * Can be used for Full Duplex communication, or Simplex by specifying
- * one pin as NC (Not Connected)
- *
- * Example:
- * @code
- * // Send a char to the PC
- *
- * #include "mbed.h"
- *
- * RawSerial pc(USBTX, USBRX);
- *
- * int main() {
- *     pc.putc('A');
- * }
- * @endcode
- */
-class RawSerial: public SerialBase {
-
-public:
-    /** Create a RawSerial port, connected to the specified transmit and receive pins
-     *
-     *  @param tx Transmit pin
-     *  @param rx Receive pin
-     *
-     *  @note
-     *    Either tx or rx may be specified as NC if unused
-     */
-    RawSerial(PinName tx, PinName rx);
-
-    /** Write a char to the serial port
-     *
-     * @param c The char to write
-     *
-     * @returns The written char or -1 if an error occured
-     */
-    int putc(int c);
-
-    /** Read a char from the serial port
-     *
-     * @returns The char read from the serial port
-     */
-    int getc();
-
-    /** Write a string to the serial port
-     *
-     * @param str The string to write
-     *
-     * @returns 0 if the write succeeds, EOF for error
-     */
-    int puts(const char *str);
-
-    int printf(const char *format, ...);
-};
-
-} // namespace mbed
-
-#endif
-
-#endif
+/* 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_RAW_SERIAL_H
+#define MBED_RAW_SERIAL_H
+
+#include "platform.h"
+
+#if DEVICE_SERIAL
+
+#include "SerialBase.h"
+#include "serial_api.h"
+
+namespace mbed {
+
+/** A serial port (UART) for communication with other serial devices
+ * This is a variation of the Serial class that doesn't use streams,
+ * thus making it safe to use in interrupt handlers with the RTOS.
+ *
+ * Can be used for Full Duplex communication, or Simplex by specifying
+ * one pin as NC (Not Connected)
+ *
+ * @Note Synchronization level: Not protected
+ *
+ * Example:
+ * @code
+ * // Send a char to the PC
+ *
+ * #include "mbed.h"
+ *
+ * RawSerial pc(USBTX, USBRX);
+ *
+ * int main() {
+ *     pc.putc('A');
+ * }
+ * @endcode
+ */
+class RawSerial: public SerialBase {
+
+public:
+    /** Create a RawSerial port, connected to the specified transmit and receive pins
+     *
+     *  @param tx Transmit pin
+     *  @param rx Receive pin
+     *
+     *  @note
+     *    Either tx or rx may be specified as NC if unused
+     */
+    RawSerial(PinName tx, PinName rx);
+
+    /** Write a char to the serial port
+     *
+     * @param c The char to write
+     *
+     * @returns The written char or -1 if an error occured
+     */
+    int putc(int c);
+
+    /** Read a char from the serial port
+     *
+     * @returns The char read from the serial port
+     */
+    int getc();
+
+    /** Write a string to the serial port
+     *
+     * @param str The string to write
+     *
+     * @returns 0 if the write succeeds, EOF for error
+     */
+    int puts(const char *str);
+
+    int printf(const char *format, ...);
+
+protected:
+
+    /** Acquire exclusive access to this serial port
+     */
+    virtual void lock(void);
+
+    /** Release exclusive access to this serial port
+     */
+    virtual void unlock(void);
+};
+
+} // namespace mbed
+
+#endif
+
+#endif