-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2010.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, distribute, and sell this \r
- software and its documentation for any purpose is hereby granted\r
- without fee, provided that the above copyright notice appear in \r
- all copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting \r
- documentation, and that the name of the author not be used in \r
- advertising or publicity pertaining to distribution of the \r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * Target-related functions for the ISP Protocol decoder.\r
- */\r
-\r
-#include "ISPTarget.h"\r
-\r
-#if defined(ENABLE_ISP_PROTOCOL) || defined(__DOXYGEN__)\r
-\r
-/** Converts the given AVR Studio SCK duration parameter (set by a SET PARAM command from the host) to the nearest\r
- * possible SPI clock prescaler mask for passing to the SPI_Init() routine.\r
- *\r
- * \return Nearest SPI prescaler mask for the given SCK frequency\r
- */\r
-uint8_t ISPTarget_GetSPIPrescalerMask(void)\r
-{\r
- static const uint8_t SPIMaskFromSCKDuration[] =\r
- {\r
- #if (F_CPU == 8000000)\r
- SPI_SPEED_FCPU_DIV_2, // AVRStudio = 8MHz SPI, Actual = 4MHz SPI\r
- SPI_SPEED_FCPU_DIV_2, // AVRStudio = 4MHz SPI, Actual = 4MHz SPI\r
- SPI_SPEED_FCPU_DIV_4, // AVRStudio = 2MHz SPI, Actual = 2MHz SPI\r
- SPI_SPEED_FCPU_DIV_8, // AVRStudio = 1MHz SPI, Actual = 1MHz SPI\r
- SPI_SPEED_FCPU_DIV_16, // AVRStudio = 500KHz SPI, Actual = 500KHz SPI\r
- SPI_SPEED_FCPU_DIV_32, // AVRStudio = 250KHz SPI, Actual = 250KHz SPI\r
- SPI_SPEED_FCPU_DIV_64, // AVRStudio = 125KHz SPI, Actual = 125KHz SPI\r
- #elif (F_CPU == 16000000)\r
- SPI_SPEED_FCPU_DIV_2, // AVRStudio = 8MHz SPI, Actual = 8MHz SPI\r
- SPI_SPEED_FCPU_DIV_4, // AVRStudio = 4MHz SPI, Actual = 4MHz SPI\r
- SPI_SPEED_FCPU_DIV_8, // AVRStudio = 2MHz SPI, Actual = 2MHz SPI\r
- SPI_SPEED_FCPU_DIV_16, // AVRStudio = 1MHz SPI, Actual = 1MHz SPI\r
- SPI_SPEED_FCPU_DIV_32, // AVRStudio = 500KHz SPI, Actual = 500KHz SPI\r
- SPI_SPEED_FCPU_DIV_64, // AVRStudio = 250KHz SPI, Actual = 250KHz SPI\r
- SPI_SPEED_FCPU_DIV_128 // AVRStudio = 125KHz SPI, Actual = 125KHz SPI\r
- #else\r
- #error No SPI prescaler masks for chosen F_CPU speed.\r
- #endif\r
- };\r
-\r
- uint8_t SCKDuration = V2Params_GetParameterValue(PARAM_SCK_DURATION);\r
-\r
- if (SCKDuration >= sizeof(SPIMaskFromSCKDuration))\r
- SCKDuration = (sizeof(SPIMaskFromSCKDuration) - 1);\r
- \r
- return SPIMaskFromSCKDuration[SCKDuration];\r
-}\r
-\r
-/** Asserts or deasserts the target's reset line, using the correct polarity as set by the host using a SET PARAM command.\r
- * When not asserted, the line is tristated so as not to interfere with normal device operation.\r
- *\r
- * \param[in] ResetTarget Boolean true when the target should be held in reset, false otherwise\r
- */\r
-void ISPTarget_ChangeTargetResetLine(const bool ResetTarget)\r
-{\r
- if (ResetTarget)\r
- {\r
- AUX_LINE_DDR |= AUX_LINE_MASK;\r
- \r
- if (!(V2Params_GetParameterValue(PARAM_RESET_POLARITY)))\r
- AUX_LINE_PORT |= AUX_LINE_MASK;\r
- }\r
- else\r
- {\r
- AUX_LINE_DDR &= ~AUX_LINE_MASK;\r
- AUX_LINE_PORT &= ~AUX_LINE_MASK;\r
- }\r
-}\r
-\r
-/** Waits until the last issued target memory programming command has completed, via the check mode given and using\r
- * the given parameters.\r
- *\r
- * \param[in] ProgrammingMode Programming mode used and completion check to use, a mask of PROG_MODE_* constants\r
- * \param[in] PollAddress Memory address to poll for completion if polling check mode used\r
- * \param[in] PollValue Poll value to check against if polling check mode used\r
- * \param[in] DelayMS Milliseconds to delay before returning if delay check mode used\r
- * \param[in] ReadMemCommand Device low-level READ MEMORY command to send if value check mode used\r
- *\r
- * \return V2 Protocol status \ref STATUS_CMD_OK if the no timeout occurred, \ref STATUS_RDY_BSY_TOUT or\r
- * \ref STATUS_CMD_TOUT otherwise\r
- */\r
-uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint16_t PollAddress, const uint8_t PollValue,\r
- const uint8_t DelayMS, const uint8_t ReadMemCommand)\r
-{\r
- uint8_t ProgrammingStatus = STATUS_CMD_OK;\r
-\r
- /* Determine method of Programming Complete check */\r
- switch (ProgrammingMode & ~(PROG_MODE_PAGED_WRITES_MASK | PROG_MODE_COMMIT_PAGE_MASK))\r
- {\r
- case PROG_MODE_WORD_TIMEDELAY_MASK:\r
- case PROG_MODE_PAGED_TIMEDELAY_MASK:\r
- ISPProtocol_DelayMS(DelayMS);\r
- break;\r
- case PROG_MODE_WORD_VALUE_MASK:\r
- case PROG_MODE_PAGED_VALUE_MASK:\r
- do\r
- {\r
- SPI_SendByte(ReadMemCommand);\r
- SPI_SendByte(PollAddress >> 8);\r
- SPI_SendByte(PollAddress & 0xFF);\r
- }\r
- while ((SPI_TransferByte(0x00) == PollValue) && TimeoutMSRemaining);\r
-\r
- if (!(TimeoutMSRemaining))\r
- ProgrammingStatus = STATUS_CMD_TOUT;\r
- \r
- break; \r
- case PROG_MODE_WORD_READYBUSY_MASK:\r
- case PROG_MODE_PAGED_READYBUSY_MASK:\r
- ProgrammingStatus = ISPTarget_WaitWhileTargetBusy();\r
- break;\r
- }\r
-\r
- if (ProgrammingStatus == STATUS_CMD_OK)\r
- TimeoutMSRemaining = COMMAND_TIMEOUT_MS;\r
-\r
- return ProgrammingStatus;\r
-}\r
-\r
-/** Waits until the target has completed the last operation, by continuously polling the device's\r
- * BUSY flag until it is cleared, or until the command timeout period has expired.\r
- *\r
- * \return V2 Protocol status \ref STATUS_CMD_OK if the no timeout occurred, \ref STATUS_RDY_BSY_TOUT otherwise\r
- */\r
-uint8_t ISPTarget_WaitWhileTargetBusy(void)\r
-{\r
- do\r
- {\r
- SPI_SendByte(0xF0);\r
- SPI_SendByte(0x00);\r
- SPI_SendByte(0x00);\r
- }\r
- while ((SPI_ReceiveByte() & 0x01) && TimeoutMSRemaining);\r
-\r
- if (TimeoutMSRemaining)\r
- {\r
- TimeoutMSRemaining = COMMAND_TIMEOUT_MS;\r
- return STATUS_CMD_OK;\r
- }\r
- else\r
- {\r
- return STATUS_RDY_BSY_TOUT;\r
- }\r
-}\r
-\r
-/** Sends a low-level LOAD EXTENDED ADDRESS command to the target, for addressing of memory beyond the\r
- * 64KB boundary. This sends the command with the correct address as indicated by the current address\r
- * pointer variable set by the host when a SET ADDRESS command is issued.\r
- */\r
-void ISPTarget_LoadExtendedAddress(void)\r
-{\r
- SPI_SendByte(LOAD_EXTENDED_ADDRESS_CMD);\r
- SPI_SendByte(0x00);\r
- SPI_SendByte((CurrentAddress & 0x00FF0000) >> 16);\r
- SPI_SendByte(0x00); \r
-}\r
-\r
-#endif\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, 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
+ *
+ * Target-related functions for the ISP Protocol decoder.
+ */
+
+#include "ISPTarget.h"
+
+#if defined(ENABLE_ISP_PROTOCOL) || defined(__DOXYGEN__)
+
+/** Converts the given AVR Studio SCK duration parameter (set by a SET PARAM command from the host) to the nearest
+ * possible SPI clock prescaler mask for passing to the SPI_Init() routine.
+ *
+ * \return Nearest SPI prescaler mask for the given SCK frequency
+ */
+uint8_t ISPTarget_GetSPIPrescalerMask(void)
+{
+ static const uint8_t SPIMaskFromSCKDuration[] =
+ {
+ #if (F_CPU == 8000000)
+ SPI_SPEED_FCPU_DIV_2, // AVRStudio = 8MHz SPI, Actual = 4MHz SPI
+ SPI_SPEED_FCPU_DIV_2, // AVRStudio = 4MHz SPI, Actual = 4MHz SPI
+ SPI_SPEED_FCPU_DIV_4, // AVRStudio = 2MHz SPI, Actual = 2MHz SPI
+ SPI_SPEED_FCPU_DIV_8, // AVRStudio = 1MHz SPI, Actual = 1MHz SPI
+ SPI_SPEED_FCPU_DIV_16, // AVRStudio = 500KHz SPI, Actual = 500KHz SPI
+ SPI_SPEED_FCPU_DIV_32, // AVRStudio = 250KHz SPI, Actual = 250KHz SPI
+ SPI_SPEED_FCPU_DIV_64, // AVRStudio = 125KHz SPI, Actual = 125KHz SPI
+ #elif (F_CPU == 16000000)
+ SPI_SPEED_FCPU_DIV_2, // AVRStudio = 8MHz SPI, Actual = 8MHz SPI
+ SPI_SPEED_FCPU_DIV_4, // AVRStudio = 4MHz SPI, Actual = 4MHz SPI
+ SPI_SPEED_FCPU_DIV_8, // AVRStudio = 2MHz SPI, Actual = 2MHz SPI
+ SPI_SPEED_FCPU_DIV_16, // AVRStudio = 1MHz SPI, Actual = 1MHz SPI
+ SPI_SPEED_FCPU_DIV_32, // AVRStudio = 500KHz SPI, Actual = 500KHz SPI
+ SPI_SPEED_FCPU_DIV_64, // AVRStudio = 250KHz SPI, Actual = 250KHz SPI
+ SPI_SPEED_FCPU_DIV_128 // AVRStudio = 125KHz SPI, Actual = 125KHz SPI
+ #else
+ #error No SPI prescaler masks for chosen F_CPU speed.
+ #endif
+ };
+
+ uint8_t SCKDuration = V2Params_GetParameterValue(PARAM_SCK_DURATION);
+
+ if (SCKDuration >= sizeof(SPIMaskFromSCKDuration))
+ SCKDuration = (sizeof(SPIMaskFromSCKDuration) - 1);
+
+ return SPIMaskFromSCKDuration[SCKDuration];
+}
+
+/** Asserts or deasserts the target's reset line, using the correct polarity as set by the host using a SET PARAM command.
+ * When not asserted, the line is tristated so as not to interfere with normal device operation.
+ *
+ * \param[in] ResetTarget Boolean true when the target should be held in reset, false otherwise
+ */
+void ISPTarget_ChangeTargetResetLine(const bool ResetTarget)
+{
+ if (ResetTarget)
+ {
+ AUX_LINE_DDR |= AUX_LINE_MASK;
+
+ if (!(V2Params_GetParameterValue(PARAM_RESET_POLARITY)))
+ AUX_LINE_PORT |= AUX_LINE_MASK;
+ }
+ else
+ {
+ AUX_LINE_DDR &= ~AUX_LINE_MASK;
+ AUX_LINE_PORT &= ~AUX_LINE_MASK;
+ }
+}
+
+/** Waits until the last issued target memory programming command has completed, via the check mode given and using
+ * the given parameters.
+ *
+ * \param[in] ProgrammingMode Programming mode used and completion check to use, a mask of PROG_MODE_* constants
+ * \param[in] PollAddress Memory address to poll for completion if polling check mode used
+ * \param[in] PollValue Poll value to check against if polling check mode used
+ * \param[in] DelayMS Milliseconds to delay before returning if delay check mode used
+ * \param[in] ReadMemCommand Device low-level READ MEMORY command to send if value check mode used
+ *
+ * \return V2 Protocol status \ref STATUS_CMD_OK if the no timeout occurred, \ref STATUS_RDY_BSY_TOUT or
+ * \ref STATUS_CMD_TOUT otherwise
+ */
+uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint16_t PollAddress, const uint8_t PollValue,
+ const uint8_t DelayMS, const uint8_t ReadMemCommand)
+{
+ uint8_t ProgrammingStatus = STATUS_CMD_OK;
+
+ /* Determine method of Programming Complete check */
+ switch (ProgrammingMode & ~(PROG_MODE_PAGED_WRITES_MASK | PROG_MODE_COMMIT_PAGE_MASK))
+ {
+ case PROG_MODE_WORD_TIMEDELAY_MASK:
+ case PROG_MODE_PAGED_TIMEDELAY_MASK:
+ ISPProtocol_DelayMS(DelayMS);
+ break;
+ case PROG_MODE_WORD_VALUE_MASK:
+ case PROG_MODE_PAGED_VALUE_MASK:
+ do
+ {
+ SPI_SendByte(ReadMemCommand);
+ SPI_SendByte(PollAddress >> 8);
+ SPI_SendByte(PollAddress & 0xFF);
+ }
+ while ((SPI_TransferByte(0x00) == PollValue) && TimeoutMSRemaining);
+
+ if (!(TimeoutMSRemaining))
+ ProgrammingStatus = STATUS_CMD_TOUT;
+
+ break;
+ case PROG_MODE_WORD_READYBUSY_MASK:
+ case PROG_MODE_PAGED_READYBUSY_MASK:
+ ProgrammingStatus = ISPTarget_WaitWhileTargetBusy();
+ break;
+ }
+
+ if (ProgrammingStatus == STATUS_CMD_OK)
+ TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
+
+ return ProgrammingStatus;
+}
+
+/** Waits until the target has completed the last operation, by continuously polling the device's
+ * BUSY flag until it is cleared, or until the command timeout period has expired.
+ *
+ * \return V2 Protocol status \ref STATUS_CMD_OK if the no timeout occurred, \ref STATUS_RDY_BSY_TOUT otherwise
+ */
+uint8_t ISPTarget_WaitWhileTargetBusy(void)
+{
+ do
+ {
+ SPI_SendByte(0xF0);
+ SPI_SendByte(0x00);
+ SPI_SendByte(0x00);
+ }
+ while ((SPI_ReceiveByte() & 0x01) && TimeoutMSRemaining);
+
+ if (TimeoutMSRemaining)
+ {
+ TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
+ return STATUS_CMD_OK;
+ }
+ else
+ {
+ return STATUS_RDY_BSY_TOUT;
+ }
+}
+
+/** Sends a low-level LOAD EXTENDED ADDRESS command to the target, for addressing of memory beyond the
+ * 64KB boundary. This sends the command with the correct address as indicated by the current address
+ * pointer variable set by the host when a SET ADDRESS command is issued.
+ */
+void ISPTarget_LoadExtendedAddress(void)
+{
+ SPI_SendByte(LOAD_EXTENDED_ADDRESS_CMD);
+ SPI_SendByte(0x00);
+ SPI_SendByte((CurrentAddress & 0x00FF0000) >> 16);
+ SPI_SendByte(0x00);
+}
+
+#endif
projects / pub / USBasp.git / blobdiff