wirish implementation of timers plus test

1 files changed, 73 insertions, 0 deletions

diff --git a/wirish/HardwareTimer.h b/wirish/HardwareTimer.h
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+++ b/wirish/HardwareTimer.h
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+/* *****************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2010 Bryan Newbold.
+ *
+ * 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 THE
+ * AUTHORS OR COPYRIGHT HOLDERS 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.
+ * ****************************************************************************/
+
+/**
+ *  @brief wirish timer class to manage the four 16-bit timer peripherals
+ */
+
+#ifndef _TIMER_H_
+#define _TIMER_H_
+
+class HardwareTimer {
+    private:
+        uint16 overflow;
+        uint8 timerNum;
+
+    public:
+        HardwareTimer(uint8 timer_num);
+
+        void pause(void);
+        void resume(void);
+        void setPrescaleFactor(uint16 factor);
+        void setOverflow(uint16 val); // truncates to overflow
+        void setCount(uint16 val);    // truncates to overflow
+        uint16 getCount(void);
+
+        // tries to set prescaler and overflow wisely; returns overflow
+        uint16 setPeriod(uint32 microseconds); 
+        void setChannel1Mode(uint8 mode);
+        void setChannel2Mode(uint8 mode);
+        void setChannel3Mode(uint8 mode);
+        void setChannel4Mode(uint8 mode);
+        void setCompare1(uint16 val); // truncates to overflow
+        void setCompare2(uint16 val); // truncates to overflow
+        void setCompare3(uint16 val); // truncates to overflow
+        void setCompare4(uint16 val); // truncates to overflow
+        void attachCompare1Interrupt(voidFuncPtr handler);
+        void attachCompare2Interrupt(voidFuncPtr handler);
+        void attachCompare3Interrupt(voidFuncPtr handler);
+        void attachCompare4Interrupt(voidFuncPtr handler);
+        void detachCompare1Interrupt(void);
+        void detachCompare2Interrupt(void);
+        void detachCompare3Interrupt(void);
+        void detachCompare4Interrupt(void);
+};
+
+extern HardwareTimer Timer1;
+extern HardwareTimer Timer2;
+extern HardwareTimer Timer3;
+extern HardwareTimer Timer4;
+
+#endif
+