Projects/Unfinished/AVRISP/Lib/V2ProtocolParams.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  V2Protocol parameter handler, to process V2 Protocol device parameters.
  34  */
  35
  36 #define  INCLUDE_FROM_V2PROTOCOL_PARAMS_C
  37 #include "V2ProtocolParams.h"
  38
  39 /* Non-Volatile Parameter Values for EEPROM storage */
  40 uint8_t EEMEM EEPROM_Rest_Polarity;
  41
  42 /* Volatile Parameter Values for RAM storage */
  43 static ParameterItem_t ParameterTable[] =
  44         {
  45                 { .ParamID          = PARAM_BUILD_NUMBER_LOW,
  46                   .ParamValue       = (LUFA_VERSION_INTEGER >> 8),
  47                   .ParamPrivellages = PARAM_PRIV_READ                    },
  48
  49                 { .ParamID          = PARAM_BUILD_NUMBER_HIGH,
  50                   .ParamValue       = (LUFA_VERSION_INTEGER & 0xFF),
  51                   .ParamPrivellages = PARAM_PRIV_READ                    },
  52
  53                 { .ParamID          = PARAM_HW_VER,
  54                   .ParamValue       = 0x01,
  55                   .ParamPrivellages = PARAM_PRIV_READ                    },
  56
  57                 { .ParamID          = PARAM_SW_MAJOR,
  58                   .ParamValue       = 0x01,
  59                   .ParamPrivellages = PARAM_PRIV_READ                    },
  60
  61                 { .ParamID          = PARAM_SW_MINOR,
  62                   .ParamValue       = 0x00,
  63                   .ParamPrivellages = PARAM_PRIV_READ                    },
  64
  65                 { .ParamID          = PARAM_VTARGET,
  66                   .ParamValue       = 0x00,
  67                   .ParamPrivellages = PARAM_PRIV_READ                    },
  68
  69                 { .ParamID          = PARAM_SCK_DURATION,
  70                   .ParamValue       = MAX_SPI_SETTINGS,
  71                   .ParamPrivellages = PARAM_PRIV_READ | PARAM_PRIV_WRITE },
  72
  73                 { .ParamID          = PARAM_RESET_POLARITY,
  74                   .ParamValue       = 0x01,
  75                   .ParamPrivellages = PARAM_PRIV_WRITE                   },
  76
  77                 { .ParamID          = PARAM_STATUS_TGT_CONN,
  78                   .ParamValue       = 0x00,
  79                   .ParamPrivellages = PARAM_PRIV_READ                    },
  80
  81                 { .ParamID          = PARAM_DISCHARGEDELAY,
  82                   .ParamValue       = 0x00,
  83                   .ParamPrivellages = PARAM_PRIV_WRITE                   },
  84         };
  85
  86
  87 void V2Params_LoadEEPROMParamValues(void)
  88 {
  89         /* Target RESET line polarity is a non-volatile value, retrieve current parameter value from EEPROM */
  90         V2Params_GetParamFromTable(PARAM_RESET_POLARITY)->ParamValue = eeprom_read_byte(&EEPROM_Rest_Polarity);
  91 }
  92
  93 static ParameterItem_t* V2Params_GetParamFromTable(uint8_t ParamID)
  94 {
  95         /* Find the parameter in the parameter table if present */
  96         for (uint8_t TableIndex = 0; TableIndex < (sizeof(ParameterTable) / sizeof(ParameterTable[0])); TableIndex++)
  97         {
  98                 if (ParamID == ParameterTable[TableIndex].ParamID)
  99                   return &ParameterTable[TableIndex];
 100         }
 101
 102         return NULL;
 103 }
 104
 105 uint8_t V2Params_GetParameterPrivellages(uint8_t ParamID)
 106 {
 107         ParameterItem_t* ParamInfo = V2Params_GetParamFromTable(ParamID);
 108
 109         if (ParamInfo == NULL)
 110           return 0;
 111
 112         return ParamInfo->ParamPrivellages;
 113 }
 114
 115 uint8_t V2Params_GetParameterValue(uint8_t ParamID)
 116 {
 117         ParameterItem_t* ParamInfo = V2Params_GetParamFromTable(ParamID);
 118
 119         if (ParamInfo == NULL)
 120           return 0;
 121
 122         return ParamInfo->ParamValue;
 123 }
 124
 125 void V2Params_SetParameterValue(uint8_t ParamID, uint8_t Value)
 126 {
 127         ParameterItem_t* ParamInfo = V2Params_GetParamFromTable(ParamID);
 128
 129         if (ParamInfo == NULL)
 130           return;
 131
 132         ParamInfo->ParamValue = Value;
 133
 134         /* The target RESET line polarity is a non-volatile parameter, save to EEPROM when changed */
 135         if (ParamID == PARAM_RESET_POLARITY)
 136           eeprom_write_byte(&EEPROM_Rest_Polarity, Value);
 137 }