Cleaned and rewrote the RV8564 interface and module a little.

[tinyos-2.x.git] / tos / platforms / mulle / chips / rv8564 / RV8564P.nc

diff --git a/tos/platforms/mulle/chips/rv8564/RV8564P.nc b/tos/platforms/mulle/chips/rv8564/RV8564P.nc
deleted file mode 100755 (executable)
index 35c0c0a..0000000
--- a/tos/platforms/mulle/chips/rv8564/RV8564P.nc
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * Copyright (c) 2009 Communication Group and Eislab at
- * Lulea University of Technology
- *
- * Contact: Laurynas Riliskis, LTU
- * Mail: laurynas.riliskis@ltu.se
- * All rights reserved.
- *
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the
- *   distribution.
- * - Neither the name of Communication Group at Lulea University of Technology
- *   nor the names of its contributors may be used to endorse or promote
- *    products derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL STANFORD
- * UNIVERSITY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/**
- * Implementation of the RV-8564-C2 real time clock.
- *
- * @author Henrik Makitaavola <henrik.makitaavola@gmail.com>
- */
-
-#include "rv8564.h"
-#include "I2C.h"
-module RV8564P
-{
-  provides interface RV8564 as RTC;
-  // TODO(henrik) Exactly how is the RTC connected to mulle, what is the functionallity of GeneralIO?
-  //              Maybe there is only a init needed because the chip is always on?
-  uses interface GeneralIO as CLKOE;
-  uses interface GeneralIO as CLKOUT;
-  uses interface GeneralIO;
-  uses interface GpioInterrupt;
-  uses interface I2CPacket<TI2CBasicAddr> as I2C;
-  uses interface Resource as I2CResource;
-}
-implementation
-{
-
-  enum
-  {
-    OFF,
-    IDLE,
-    READING,
-    WRITING
-  };
-  norace uint8_t state = OFF;
-  norace uint8_t read_register;
-  uint8_t read_register_value;
-  uint8_t write_buffer[2];
-
-  command error_t RTC.on()
-  {
-    if (state != OFF)
-    {
-      return SUCCESS;
-    }
-    state = IDLE;
-    return SUCCESS;
-  }
-
-  command error_t RTC.off()
-  {
-    if  (state == OFF)
-    {
-      return SUCCESS;
-    }
-    else if (state != IDLE)
-    {
-      return FAIL;
-    }
-    call CLKOE.clr();
-    call CLKOUT.clr();
-    return SUCCESS;
-  }
-
-  command bool RTC.isOn()
-  {
-    return ((state != OFF) ? true : false);
-  }
-
-  command void RTC.enableCLKOUT()
-  {
-       call CLKOUT.makeInput();
-       call CLKOUT.clr();
-       call CLKOE.makeOutput();
-       call CLKOE.set();
-  }
-  command void RTC.enableInterrupt()
-  {
-    call GpioInterrupt.enableFallingEdge();
-  }
-
-  command void RTC.disableInterrupt()
-  {
-    call GpioInterrupt.disable();
-  }
-
-  command error_t RTC.readRegister(uint8_t reg)
-  {
-    uint8_t val;
-    if (state != IDLE)
-    {  
-      return FAIL;
-    }
-    state = READING;
-    read_register = reg;
-    call I2CResource.request();
-    return SUCCESS;
-  }
-
-  command error_t RTC.writeRegister(uint8_t reg, uint8_t value)
-  { 
-    if (state != IDLE)
-    {
-      return FAIL;
-    }
-    state = WRITING;
-    atomic write_buffer[0] = reg;
-    atomic write_buffer[1] = value;
-    call I2CResource.request();
-    return SUCCESS;
-  }
-
-  event void I2CResource.granted()
-  {
-    atomic {
-      if (state == READING)
-      {
-        call I2C.write(I2C_START | I2C_STOP, RV8564_ADDR, 1, &read_register);
-      }
-      else if (state == WRITING)
-      {
-        call I2C.write(I2C_START | I2C_STOP, RV8564_ADDR, 2, write_buffer);    
-      }
-    }  
-  }
-
-  async event void GpioInterrupt.fired()
-  {
-    signal RTC.fired();
-  }
-
-  async event void I2C.readDone(error_t error, uint16_t addr, uint8_t length, uint8_t* data)
-  {
-    atomic
-    {
-      if (state == READING && data == &read_register_value)
-      {
-        state = IDLE;
-        call I2CResource.release();
-        signal RTC.readRegisterDone(read_register_value, read_register);
-      }        
-    }
-  }
-
-  async event void I2C.writeDone(error_t error, uint16_t addr, uint8_t length, uint8_t* data)
-  {
-    if (state == READING)
-    {
-      call I2C.read(I2C_START | I2C_STOP, RV8564_ADDR, 1, &read_register_value);
-    }
-    else if (state == WRITING)
-    {
-      state = IDLE;
-      call I2CResource.release();
-      signal RTC.writeRegisterDone(write_buffer[0]);
-    }
-  }
-
-  default async event void RTC.readRegisterDone(uint8_t val, uint8_t reg) {}
-  default async event void RTC.writeRegisterDone(uint8_t reg) {}
-  default async event void RTC.fired() { }
-}