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Diffstat (limited to 'Projects/AVRISP/Lib/V2ProtocolParams.c')
| -rw-r--r-- | Projects/AVRISP/Lib/V2ProtocolParams.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/Projects/AVRISP/Lib/V2ProtocolParams.c b/Projects/AVRISP/Lib/V2ProtocolParams.c new file mode 100644 index 000000000..9914c085e --- /dev/null +++ b/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;
+}
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