Partial Commit: Move AVRISP project out of the Projects\Incomplete directory.

Projects/AVRISP/Lib/V2ProtocolParams.c

@@ -0,0 +1,166 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2009.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, and distribute this software
+  and its documentation for any purpose and without fee is hereby
+  granted, provided that the above copyright notice appear in all
+  copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  V2Protocol parameter handler, to process V2 Protocol device parameters.
+ */
+
+#define  INCLUDE_FROM_V2PROTOCOL_PARAMS_C
+#include "V2ProtocolParams.h"
+
+/* Non-Volatile Parameter Values for EEPROM storage */
+uint8_t EEMEM EEPROM_Rest_Polarity = 0x00;
+
+/* Volatile Parameter Values for RAM storage */
+static ParameterItem_t ParameterTable[] = 
+	{
+		{ .ParamID          = PARAM_BUILD_NUMBER_LOW,
+		  .ParamValue       = (LUFA_VERSION_INTEGER >> 8),
+		  .ParamPrivellages = PARAM_PRIV_READ                    },
+
+		{ .ParamID          = PARAM_BUILD_NUMBER_HIGH,
+		  .ParamValue       = (LUFA_VERSION_INTEGER & 0xFF),
+		  .ParamPrivellages = PARAM_PRIV_READ                    },
+
+		{ .ParamID          = PARAM_HW_VER,
+		  .ParamValue       = 0x00,
+		  .ParamPrivellages = PARAM_PRIV_READ                    },
+
+		{ .ParamID          = PARAM_SW_MAJOR,
+		  .ParamValue       = 0x01,
+		  .ParamPrivellages = PARAM_PRIV_READ                    },
+
+		{ .ParamID          = PARAM_SW_MINOR,
+		  .ParamValue       = 0x0C,
+		  .ParamPrivellages = PARAM_PRIV_READ                    },
+
+		{ .ParamID          = PARAM_VTARGET,
+		  .ParamValue       = 0x32,
+		  .ParamPrivellages = PARAM_PRIV_READ                    },
+
+		{ .ParamID          = PARAM_SCK_DURATION,
+		  .ParamValue       = (TOTAL_PROGRAMMING_SPEEDS - 1),
+		  .ParamPrivellages = PARAM_PRIV_READ | PARAM_PRIV_WRITE },
+
+		{ .ParamID          = PARAM_RESET_POLARITY,
+		  .ParamValue       = 0x00,
+		  .ParamPrivellages = PARAM_PRIV_WRITE                   },
+
+		{ .ParamID          = PARAM_STATUS_TGT_CONN,
+		  .ParamValue       = 0x00,
+		  .ParamPrivellages = PARAM_PRIV_READ                    },
+
+		{ .ParamID          = PARAM_DISCHARGEDELAY,
+		  .ParamValue       = 0x00,
+		  .ParamPrivellages = PARAM_PRIV_WRITE                   },
+	};
+
+
+/** Loads saved non-volatile parameter values from the EEPROM into the parameter table, as needed. */
+void V2Params_LoadEEPROMParamValues(void)
+{
+	/* Target RESET line polarity is a non-volatile value, retrieve current parameter value from EEPROM */
+	V2Params_GetParamFromTable(PARAM_RESET_POLARITY)->ParamValue = eeprom_read_byte(&EEPROM_Rest_Polarity);
+}
+
+/** Retrieves the host PC read/write privellages for a given parameter in the parameter table. This should
+ *  be called before calls to \ref V2Params_GetParameterValue() or \ref V2Params_SetParameterValue() when
+ *  getting or setting parameter values in response to requests from the host.
+ *
+ *  \param ParamID  Parameter ID whose privellages are to be retrieved from the table
+ *
+ *  \return Privellages for the requested parameter, as a mask of PARAM_PRIV_* masks
+ */ 
+uint8_t V2Params_GetParameterPrivellages(uint8_t ParamID)
+{
+	ParameterItem_t* ParamInfo = V2Params_GetParamFromTable(ParamID);
+	
+	if (ParamInfo == NULL)
+	  return 0;
+
+	return ParamInfo->ParamPrivellages;
+}
+
+/** Retrieves the current value for a given parameter in the parameter table.
+ *
+ *  \param ParamID  Parameter ID whose value is to be retrieved from the table
+ *
+ *  \return Current value of the parameter in the table, or 0 if not found
+ */ 
+uint8_t V2Params_GetParameterValue(uint8_t ParamID)
+{
+	ParameterItem_t* ParamInfo = V2Params_GetParamFromTable(ParamID);
+	
+	if (ParamInfo == NULL)
+	  return 0;
+	
+	return ParamInfo->ParamValue;
+}
+
+/** Sets the value for a given parameter in the parameter table.
+ *
+ *  \param ParamID  Parameter ID whose value is to be set in the table
+ *  \param Value  New value to set the parameter to
+ *
+ *  \return Pointer to the associated parameter information from the parameter table if found, NULL otherwise
+ */
+void V2Params_SetParameterValue(uint8_t ParamID, uint8_t Value)
+{
+	ParameterItem_t* ParamInfo = V2Params_GetParamFromTable(ParamID);
+
+	if (ParamInfo == NULL)
+	  return;
+
+	ParamInfo->ParamValue = Value;
+
+	/* The target RESET line polarity is a non-volatile parameter, save to EEPROM when changed */
+	if (ParamID == PARAM_RESET_POLARITY)
+	  eeprom_write_byte(&EEPROM_Rest_Polarity, Value);  
+}
+
+/** Retrieves a parameter entry (including ID, value and privellages) from the parameter table that matches the given
+ *  parameter ID.
+ *
+ *  \param ParamID  Parameter ID to find in the table
+ *
+ *  \return Pointer to the associated parameter information from the parameter table if found, NULL otherwise
+ */
+static ParameterItem_t* V2Params_GetParamFromTable(uint8_t ParamID)
+{
+	/* Find the parameter in the parameter table if present */
+	for (uint8_t TableIndex = 0; TableIndex < (sizeof(ParameterTable) / sizeof(ParameterTable[0])); TableIndex++)
+	{
+		if (ParamID == ParameterTable[TableIndex].ParamID)
+		  return &ParameterTable[TableIndex];
+	}
+	
+	return NULL;
+}