Subversion Repositories FlightCtrl

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Copyright (c) 04.2007 Holger Buss
// + Nur für den privaten Gebrauch
// + www.MikroKopter.com
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation),
// + dass eine Nutzung (auch auszugsweise) nur für den privaten und nicht-kommerziellen Gebrauch zulässig ist.
// + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt
// + bzgl. der Nutzungsbedingungen aufzunehmen.
// + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen,
// + Verkauf von Luftbildaufnahmen, usw.
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht,
// + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts
// + auf anderen Webseiten oder Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de"
// + eindeutig als Ursprung verlinkt und genannt werden
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion
// + Benutzung auf eigene Gefahr
// + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Die Portierung der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur
// + mit unserer Zustimmung zulässig
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Redistributions of source code (with or without modifications) must retain the above copyright notice,
// + this list of conditions and the following disclaimer.
// +   * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived
// +     from this software without specific prior written permission.
// +   * The use of this project (hardware, software, binary files, sources and documentation) is only permittet
// +     for non-commercial use (directly or indirectly)
// +     Commercial use (for example: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted
// +     with our written permission
// +   * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be
// +     clearly linked as origin
// +   * porting to systems other than hardware from www.mikrokopter.de is not allowed
// +  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 THE COPYRIGHT OWNER OR 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.
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

#ifndef EEMEM
#define EEMEM __attribute__ ((section (".eeprom")))
#endif

#include "eeprom.h"
#include "printf_P.h"
#include "output.h"
#include <avr/eeprom.h>

// byte array in eeprom
uint8_t EEPromArray[E2END + 1] EEMEM;

/***************************************************/
/*       Read Parameter from EEPROM as byte        */
/***************************************************/
uint8_t getParamByte(uint16_t param_id) {
  return eeprom_read_byte(&EEPromArray[EEPROM_ADR_PARAM_BEGIN + param_id]);
}

/***************************************************/
/*       Write Parameter to EEPROM as byte         */
/***************************************************/
void setParamByte(uint16_t param_id, uint8_t value) {
  eeprom_write_byte(&EEPromArray[EEPROM_ADR_PARAM_BEGIN + param_id], value);
}

/***************************************************/
/*       Read Parameter from EEPROM as word        */
/***************************************************/
/*
uint16_t getParamWord(uint16_t param_id) {
  return eeprom_read_word((uint16_t *) &EEPromArray[EEPROM_ADR_PARAM_BEGIN
                                                    + param_id]);
}
*/

/***************************************************/
/*       Write Parameter to EEPROM as word         */
/***************************************************/
/*
void setParamWord(uint16_t param_id, uint16_t value) {
  eeprom_write_word((uint16_t *) &EEPromArray[EEPROM_ADR_PARAM_BEGIN + param_id], value);
}
*/

uint16_t CRC16(uint8_t* data, uint16_t length) {
  uint16_t crc = 0;
  for (uint16_t i=0; i<length; i++) {
    crc  = (uint8_t)(crc >> 8) | (crc << 8);
    crc ^= data[i];
    crc ^= (uint8_t)(crc & 0xff) >> 4;
    crc ^= (crc << 8) << 4;
    crc ^= ((crc & 0xff) << 4) << 1;
  }
  return crc;
}

// offset is where the checksum is stored, offset+1 is the revision number, and offset+2... are the data.
// length is the length of the pure data not including checksum and revision number.
void writeChecksummedBlock(uint8_t revisionNumber, uint8_t* data, uint16_t offset, uint16_t length) {
  uint16_t CRC = CRC16(data, length);
  eeprom_write_byte(&EEPromArray[offset], CRC&0xff);
  eeprom_write_byte(&EEPromArray[offset+1], CRC>>8);
  eeprom_write_byte(&EEPromArray[offset+2], revisionNumber);
  eeprom_write_block(data, &EEPromArray[offset+3], length);
}

// offset is where the checksum is stored, offset+1 is the revision number, and offset+2... are the data.
// length is the length of the pure data not including checksum and revision number.
uint8_t readChecksummedBlock(uint8_t revisionNumber, uint8_t* target, uint16_t offset, uint16_t length) {
  uint16_t CRCRead = eeprom_read_byte(&EEPromArray[offset]) | (eeprom_read_byte(&EEPromArray[offset+1])<<8);
  uint8_t revisionNumberRead = eeprom_read_byte(&EEPromArray[offset+2]);
  eeprom_read_block(target, &EEPromArray[offset+3], length);
  uint16_t CRCCalculated = CRC16(target, length);
 
  uint8_t CRCError = (CRCRead != CRCCalculated);
  uint8_t revisionMismatch = (revisionNumber != revisionNumberRead);
 
  if (CRCError && revisionMismatch) printf("\n\rEEPROM CRC error and revision mismatch; ");
  else if (CRCError) printf("\n\rEEPROM CRC error; ");
  else if (revisionMismatch) printf("\n\rEEPROM revision mismatch; ");
  return (CRCError || revisionMismatch);
}

/***************************************************/
/*       Read Parameter Set from EEPROM            */
/***************************************************/
// setnumber [1..5]
uint8_t paramSet_readFromEEProm(uint8_t setnumber) {
  uint16_t offset = EEPROM_ADR_PARAMSET_BEGIN + (setnumber-1)*(sizeof(paramset_t)+EEPROM_CHECKSUMMED_BLOCK_OVERHEAD);
  output_init(); // what's that doing here??
  return readChecksummedBlock(EEPARAM_REVISION, (uint8_t*)&staticParams, offset, sizeof(paramset_t));
}

/***************************************************/
/*        Write Parameter Set to EEPROM            */
/***************************************************/
void paramSet_writeToEEProm(uint8_t setnumber) {
  uint16_t offset = EEPROM_ADR_PARAMSET_BEGIN + (setnumber-1)*(sizeof(paramset_t)+EEPROM_CHECKSUMMED_BLOCK_OVERHEAD);
  writeChecksummedBlock(EEPARAM_REVISION, (uint8_t*)&staticParams, offset, sizeof(paramset_t));
  // set this parameter set to active set
  setActiveParamSet(setnumber);
  output_init(); // what's that doing here??
}

void paramSet_readOrDefault() {
  uint8_t setnumber = getActiveParamSet();
  // parameter version  check
  if (setnumber<1 ||setnumber>5 || paramSet_readFromEEProm(setnumber)) {
    // if version check faild
    printf("\n\rwriting default parameter sets");
    for (uint8_t i=5; i>0; i--) {
      paramSet_default(i);
      paramSet_writeToEEProm(i);
    }
    // default-Setting is parameter set 3
    setActiveParamSet(1);
  }
 
  printf("\n\r\rUsing Parameter Set %d", getActiveParamSet());
}

/***************************************************/
/* MixerTable                                      */
/***************************************************/
void mixerMatrix_writeToEEProm(void) {
  writeChecksummedBlock(EEMIXER_REVISION, (uint8_t*)&mixerMatrix, EEPROM_ADR_MIXER_TABLE, sizeof(mixerMatrix_t));
}

void mixerMatrix_readOrDefault(void) {
  // load mixer table
  if (readChecksummedBlock(EEMIXER_REVISION, (uint8_t*)&mixerMatrix, EEPROM_ADR_MIXER_TABLE, sizeof(mixerMatrix_t))) {
    printf("writing default mixerMatrix");
    mixerMatrix_default(); // Quadro
    mixerMatrix_writeToEEProm();
  }
  // determine motornumber
  requiredMotors = 0;
  for (uint8_t i=0; i<MAX_MOTORS; i++) {
    if (mixerMatrix.motor[i][MIX_THROTTLE])
      requiredMotors++;
  }
 
  printf("\n\rMixer-Config: '%s' (%u Motors)",mixerMatrix.name, requiredMotors);
  printf("\n\r===================================");
}

/***************************************************/
/* ChannelMap                                      */
/***************************************************/
void channelMap_writeToEEProm(void) {
  writeChecksummedBlock(CHANNELMAP_REVISION, (uint8_t*)&channelMap, EEPROM_ADR_CHANNELMAP, sizeof(channelMap_t));
}

void channelMap_readOrDefault(void) {
  if (readChecksummedBlock(CHANNELMAP_REVISION, (uint8_t*)&channelMap, EEPROM_ADR_CHANNELMAP, sizeof(channelMap_t))) {
    printf("writing default channel map");
    channelMap_default();
    channelMap_writeToEEProm();
  }
}

/***************************************************/
/* Sensor offsets                                  */
/***************************************************/
uint8_t gyroAmplifierOffset_readFromEEProm(void) {
  return readChecksummedBlock(SENSOROFFSET_REVISION, (uint8_t*)&gyroAmplifierOffset, EEPROM_ADR_GYROAMPLIFIER, sizeof(sensorOffset_t));
}

void gyroAmplifierOffset_writeToEEProm(void) {
  return writeChecksummedBlock(SENSOROFFSET_REVISION, (uint8_t*)&gyroAmplifierOffset, EEPROM_ADR_GYROAMPLIFIER, sizeof(sensorOffset_t));
}

uint8_t gyroOffset_readFromEEProm(void) {
  return readChecksummedBlock(SENSOROFFSET_REVISION, (uint8_t*)&gyroOffset, EEPROM_ADR_GYROOFFSET, sizeof(sensorOffset_t));
}

void gyroOffset_writeToEEProm(void) {
  writeChecksummedBlock(SENSOROFFSET_REVISION, (uint8_t*)&gyroOffset, EEPROM_ADR_GYROOFFSET, sizeof(sensorOffset_t));
}

uint8_t accOffset_readFromEEProm(void) {
  return readChecksummedBlock(SENSOROFFSET_REVISION, (uint8_t*)&accOffset, EEPROM_ADR_ACCOFFSET, sizeof(sensorOffset_t));
}

void accOffset_writeToEEProm(void) {
  writeChecksummedBlock(SENSOROFFSET_REVISION, (uint8_t*)&accOffset, EEPROM_ADR_ACCOFFSET, sizeof(sensorOffset_t));
}

/***************************************************/
/*       Get active parameter set                  */
/***************************************************/
uint8_t getActiveParamSet(void) {
  uint8_t setnumber;
  setnumber = eeprom_read_byte(&EEPromArray[PID_ACTIVE_SET]);
  if (setnumber > 4) {
    setActiveParamSet(setnumber = 0);
  }
  return setnumber;
}

/***************************************************/
/*       Set active parameter set                  */
/***************************************************/
void setActiveParamSet(uint8_t setnumber) {
  eeprom_write_byte(&EEPromArray[PID_ACTIVE_SET], setnumber);
}