Diff: HSP/Devices/HspLed/HspLed/HspLed.h

Revision:

11:1dde68750ed1

Parent:

0:8e4630a71eb1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HSP/Devices/HspLed/HspLed/HspLed.h	Tue Jul 24 15:15:22 2018 +0300
@@ -0,0 +1,170 @@
+/*******************************************************************************
+ * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+ * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+#ifndef _LED_H_
+#define _LED_H_
+
+#include "mbed.h"
+
+/**
+ * Driver for the HSP Led, supports different blink rates and patterns
+ *
+ * @code
+ * #include <stdio.h>
+ * #include "mbed.h"
+ * #include "xxx.h"
+ *
+ * I2C i2c(I2C_SDA, I2C_SCL);
+ * xxx xxx(&i2c);
+ *
+ * int main(void) {
+ *	   printf("Initialized xxx\n");
+ *     while(1) {
+ *         if (xxx.init() != 0) {
+ *             printf("Error communicating with xxx\n");
+ *         } else {
+ *             printf("Initialized xxx\n");
+ *             break;
+ *         }
+ *         wait(1);
+ *     }
+ *
+ *     while(1) {
+ *         printf("");
+ *         wait(1);
+ *     }
+ * }
+ * @endcode
+ */
+
+class HspLed {
+public:
+  static const int LED_ON = 0;
+  static const int LED_OFF = 1;
+
+  /// define all of the modes the LED can support
+  typedef enum eMode {
+    eLedOn,
+    eLedOff,
+    eLedPeriod,
+    eLedPattern
+  } eMode;
+  /// define the values that turn the LED on or off at the pin
+  #define HSP_LED_ON 0
+  #define HSP_LED_OFF 1
+
+  /*
+  * @brief Constructor where you specify the LED pin name
+  */
+  HspLed(PinName ledPin);
+  
+  /**
+  * Blink the HSP LED at a set time interval
+  * @param mSeconds Number of seconds to set the timer interval
+  */
+  void blink(uint32_t mSeconds);
+  
+  /**
+  * @brief Start rotating the LED through a 32-bit pattern at a mS rate specified
+  * @param pattern 32-bit pattern to rotate through
+  * @param mSeconds the amount of time to take per bit in the pattern
+  */ 
+  void pattern(uint32_t pattern, uint32_t mSeconds);
+  
+  /**
+  * @brief Turn the LED on
+  */
+  void on(void);
+  
+  /**
+  * @brief Turn the LED off
+  */
+  void off(void);
+
+  /**
+  * @brief Update the LED
+  */ 
+  void service(void);
+
+private:
+
+  /**
+  * Set the mode of the LED, the mode include blinking at a set rate or blinking
+  * according to a pattern
+  * @param mode Mode to set the LED to
+  */
+  void setMode(eMode state);
+  
+  /**
+  * Toggle the state of the LED
+  */
+  void toggle(void);
+
+  /**
+  * Start the LED blinking or rotating through a pattern
+  */
+  void start(void);
+
+  /**
+  * Stop blinking or rotating through a pattern
+  */
+  void stop(void);
+  
+  /**
+  * Write the LED pin to a state
+  * @param state A one or zero value to write to the LED pin
+  */  
+  void state(int state);
+
+  /*
+  * @brief Single step through the pattern and output to the LED
+  */
+  void patternToLed(void);
+
+  /// timer interval in mS
+  float timerInterval;
+  /// last timer interval set to... used to prevent resetting the timer to the same value
+  float timerIntervalLast;
+  /// local state of the pattern to rotate through
+  uint32_t bitPattern;
+  /// current mode of the LED
+  eMode mode;
+  /// the LED digital output
+  DigitalOut redLed;
+  /// Timer service used to update the LED
+  Ticker ticker;
+  /// Flag to indicate if the timer has been started
+  bool isStarted;
+};
+
+#endif /* _LED_H_ */
+