+++ /dev/null
-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- 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
- * V2Protocol handler, to process V2 Protocol commands used in Atmel programmer devices.\r
- */\r
-\r
-#define INCLUDE_FROM_V2PROTOCOL_C\r
-#include "V2Protocol.h"\r
-\r
-/** Master V2 Protocol packet handler, for receieved V2 Protocol packets from a connected host.\r
- * This routine decodes the issued command and passes off the handling of the command to the\r
- * appropriate function.\r
- */\r
-void V2Protocol_ProcessCommand(void)
-{
- uint8_t V2Command = Endpoint_Read_Byte();\r
- \r
- switch (V2Command)\r
- {\r
- case CMD_SIGN_ON:\r
- V2Protocol_Command_SignOn();\r
- break;\r
- case CMD_SET_PARAMETER:\r
- case CMD_GET_PARAMETER:\r
- V2Protocol_Command_GetSetParam(V2Command);\r
- break;\r
- case CMD_LOAD_ADDRESS:\r
- V2Protocol_Command_LoadAddress();\r
- break;\r
- case CMD_RESET_PROTECTION:\r
- V2Protocol_Command_ResetProtection();\r
- break;\r
- case CMD_ENTER_PROGMODE_ISP:\r
- V2Protocol_Command_EnterISPMode();\r
- break;\r
- case CMD_LEAVE_PROGMODE_ISP:\r
- V2Protocol_Command_LeaveISPMode();\r
- break;\r
- case CMD_PROGRAM_FLASH_ISP:\r
- case CMD_PROGRAM_EEPROM_ISP:\r
- V2Protocol_Command_ProgramMemory(V2Command); \r
- break;\r
- case CMD_READ_FLASH_ISP:\r
- case CMD_READ_EEPROM_ISP:\r
- V2Protocol_Command_ReadMemory(V2Command);\r
- break;\r
- case CMD_CHIP_ERASE_ISP:\r
- V2Protocol_Command_ChipErase();\r
- break;\r
- case CMD_READ_FUSE_ISP:\r
- case CMD_READ_LOCK_ISP:\r
- case CMD_READ_SIGNATURE_ISP:\r
- case CMD_READ_OSCCAL_ISP:\r
- V2Protocol_Command_ReadFuseLockSigOSCCAL(V2Command);\r
- break;\r
- case CMD_PROGRAM_FUSE_ISP:\r
- case CMD_PROGRAM_LOCK_ISP:\r
- V2Protocol_Command_WriteFuseLock(V2Command);\r
- break;\r
- case CMD_SPI_MULTI:\r
- V2Protocol_Command_SPIMulti();\r
- break;\r
- default:\r
- V2Protocol_Command_Unknown(V2Command);\r
- break;\r
- }\r
- \r
- Endpoint_WaitUntilReady();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_OUT);
-}
-\r
-/** Handler for unknown V2 protocol commands. This discards all sent data and returns a\r
- * STATUS_CMD_UNKNOWN status back to the host.\r
- *\r
- * \param V2Command Issued V2 Protocol command byte from the host\r
- */\r
-static void V2Protocol_Command_Unknown(uint8_t V2Command)\r
-{\r
- /* Discard all incomming data */\r
- while (Endpoint_BytesInEndpoint() == AVRISP_DATA_EPSIZE)\r
- {\r
- Endpoint_ClearOUT();\r
- Endpoint_WaitUntilReady();\r
- }\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
-\r
- Endpoint_Write_Byte(V2Command);\r
- Endpoint_Write_Byte(STATUS_CMD_UNKNOWN);\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_SIGN_ON command, returning the programmer ID string to the host. */
-static void V2Protocol_Command_SignOn(void)\r
-{\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
-\r
- Endpoint_Write_Byte(CMD_SIGN_ON);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_Write_Byte(sizeof(PROGRAMMER_ID) - 1);\r
- Endpoint_Write_Stream_LE(PROGRAMMER_ID, (sizeof(PROGRAMMER_ID) - 1));\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_SET_PARAMETER and CMD_GET_PARAMETER commands from the host, setting or\r
- * getting a device parameter's value from the parameter table.\r
- *\r
- * \param V2Command Issued V2 Protocol command byte from the host\r
- */\r
-static void V2Protocol_Command_GetSetParam(uint8_t V2Command)\r
-{\r
- uint8_t ParamID = Endpoint_Read_Byte();\r
- uint8_t ParamValue;\r
- \r
- if (V2Command == CMD_SET_PARAMETER)\r
- ParamValue = Endpoint_Read_Byte();\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
- \r
- Endpoint_Write_Byte(V2Command);\r
- \r
- uint8_t ParamPrivs = V2Params_GetParameterPrivellages(ParamID);\r
- \r
- if ((V2Command == CMD_SET_PARAMETER) && (ParamPrivs & PARAM_PRIV_WRITE))\r
- {\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- V2Params_SetParameterValue(ParamID, ParamValue);\r
- }\r
- else if ((V2Command == CMD_GET_PARAMETER) && (ParamPrivs & PARAM_PRIV_READ))\r
- {\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_Write_Byte(V2Params_GetParameterValue(ParamID));\r
- }\r
- else\r
- { \r
- Endpoint_Write_Byte(STATUS_CMD_FAILED);\r
- }\r
-\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_LOAD_ADDRESS command, loading the given device address into a\r
- * global storage variable for later use, and issuing LOAD EXTENDED ADDRESS commands\r
- * to the attached device as required.\r
- */\r
-static void V2Protocol_Command_LoadAddress(void)\r
-{\r
- Endpoint_Read_Stream_BE(&CurrentAddress, sizeof(CurrentAddress));\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
- \r
- if (CurrentAddress & (1UL << 31))\r
- V2Protocol_LoadExtendedAddress();\r
-\r
- Endpoint_Write_Byte(CMD_LOAD_ADDRESS);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_RESET_PROTECTION command, currently implemented as a dummy ACK function\r
- * as no ISP short-circuit protection is currently implemented.\r
- */\r
-static void V2Protocol_Command_ResetProtection(void)\r
-{\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
- \r
- Endpoint_Write_Byte(CMD_RESET_PROTECTION);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_ClearIN(); \r
-}\r
-\r
-/** Handler for the CMD_ENTER_PROGMODE_ISP command, which attempts to enter programming mode on\r
- * the attached device, returning success or failure back to the host.\r
- */\r
-static void V2Protocol_Command_EnterISPMode(void)\r
-{\r
- struct\r
- {\r
- uint8_t TimeoutMS;\r
- uint8_t PinStabDelayMS;\r
- uint8_t ExecutionDelayMS;\r
- uint8_t SynchLoops;\r
- uint8_t ByteDelay;\r
- uint8_t PollValue;\r
- uint8_t PollIndex;\r
- uint8_t EnterProgBytes[4];\r
- } Enter_ISP_Params;\r
- \r
- Endpoint_Read_Stream_LE(&Enter_ISP_Params, sizeof(Enter_ISP_Params));\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
-\r
- uint8_t ResponseStatus = STATUS_CMD_FAILED;\r
- \r
- CurrentAddress = 0;\r
-\r
- V2Protocol_DelayMS(Enter_ISP_Params.ExecutionDelayMS); \r
- SPI_Init(V2Protocol_GetSPIPrescalerMask() | SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING | SPI_MODE_MASTER);\r
- \r
- while (Enter_ISP_Params.SynchLoops-- && (ResponseStatus == STATUS_CMD_FAILED))\r
- {\r
- uint8_t ResponseBytes[4];\r
-\r
- V2Protocol_ChangeTargetResetLine(true);\r
- V2Protocol_DelayMS(Enter_ISP_Params.PinStabDelayMS);\r
-\r
- for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++)\r
- {\r
- V2Protocol_DelayMS(Enter_ISP_Params.ByteDelay);\r
- ResponseBytes[RByte] = SPI_TransferByte(Enter_ISP_Params.EnterProgBytes[RByte]);\r
- }\r
- \r
- /* Check if polling disabled, or if the polled value matches the expected value */\r
- if (!(Enter_ISP_Params.PollIndex) || (ResponseBytes[Enter_ISP_Params.PollIndex - 1] == Enter_ISP_Params.PollValue))\r
- {\r
- ResponseStatus = STATUS_CMD_OK;\r
- }\r
- else\r
- {\r
- V2Protocol_ChangeTargetResetLine(false);\r
- V2Protocol_DelayMS(Enter_ISP_Params.PinStabDelayMS);\r
- }\r
- }\r
-\r
- Endpoint_Write_Byte(CMD_ENTER_PROGMODE_ISP);\r
- Endpoint_Write_Byte(ResponseStatus);\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_LEAVE_ISP command, which releases the target from programming mode. */\r
-static void V2Protocol_Command_LeaveISPMode(void)\r
-{\r
- struct\r
- {\r
- uint8_t PreDelayMS;\r
- uint8_t PostDelayMS;\r
- } Leave_ISP_Params;\r
-\r
- Endpoint_Read_Stream_LE(&Leave_ISP_Params, sizeof(Leave_ISP_Params));\r
- \r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
-\r
- V2Protocol_DelayMS(Leave_ISP_Params.PreDelayMS);\r
- V2Protocol_ChangeTargetResetLine(false);\r
- SPI_ShutDown();\r
- V2Protocol_DelayMS(Leave_ISP_Params.PostDelayMS);\r
-\r
- Endpoint_Write_Byte(CMD_LEAVE_PROGMODE_ISP);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_PROGRAM_FLASH_ISP and CMD_PROGRAM_EEPROM_ISP commands, writing out bytes,\r
- * words or pages of data to the attached device.\r
- *\r
- * \param V2Command Issued V2 Protocol command byte from the host\r
- */\r
-static void V2Protocol_Command_ProgramMemory(uint8_t V2Command)\r
-{\r
- struct\r
- {\r
- uint16_t BytesToWrite;\r
- uint8_t ProgrammingMode;\r
- uint8_t DelayMS;\r
- uint8_t ProgrammingCommands[3];\r
- uint8_t PollValue1;\r
- uint8_t PollValue2;\r
- uint8_t ProgData[512];\r
- } Write_Memory_Params;\r
- \r
- uint8_t* NextWriteByte = Write_Memory_Params.ProgData;\r
-\r
- Endpoint_Read_Stream_LE(&Write_Memory_Params, sizeof(Write_Memory_Params) - sizeof(Write_Memory_Params.ProgData));\r
- Write_Memory_Params.BytesToWrite = SwapEndian_16(Write_Memory_Params.BytesToWrite);\r
- Endpoint_Read_Stream_LE(&Write_Memory_Params.ProgData, Write_Memory_Params.BytesToWrite);\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
-\r
- uint8_t ProgrammingStatus = STATUS_CMD_OK; \r
- uint16_t PollAddress = 0;\r
- uint8_t PollValue = (V2Command == CMD_PROGRAM_FLASH_ISP) ? Write_Memory_Params.PollValue1 :\r
- Write_Memory_Params.PollValue2;\r
- if (Write_Memory_Params.ProgrammingMode & PROG_MODE_PAGED_WRITES_MASK)\r
- {\r
- uint16_t StartAddress = (CurrentAddress & 0xFFFF);\r
- \r
- /* Paged mode memory programming */\r
- for (uint16_t CurrentByte = 0; CurrentByte < Write_Memory_Params.BytesToWrite; CurrentByte++)\r
- {\r
- bool IsOddByte = (CurrentByte & 0x01);\r
- uint8_t ByteToWrite = *(NextWriteByte++);\r
- \r
- if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))\r
- Write_Memory_Params.ProgrammingCommands[0] |= READ_WRITE_HIGH_BYTE_MASK;\r
- else\r
- Write_Memory_Params.ProgrammingCommands[0] &= ~READ_WRITE_HIGH_BYTE_MASK;\r
- \r
- SPI_SendByte(Write_Memory_Params.ProgrammingCommands[0]);\r
- SPI_SendByte(CurrentAddress >> 8);\r
- SPI_SendByte(CurrentAddress & 0xFF);\r
- SPI_SendByte(ByteToWrite);\r
- \r
- if (!(PollAddress) && (ByteToWrite != PollValue))\r
- {\r
- if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))\r
- Write_Memory_Params.ProgrammingCommands[2] |= READ_WRITE_HIGH_BYTE_MASK;\r
- \r
- PollAddress = (CurrentAddress & 0xFFFF); \r
- } \r
-\r
- if (IsOddByte || (V2Command == CMD_PROGRAM_EEPROM_ISP))\r
- CurrentAddress++;\r
- }\r
- \r
- /* If the current page must be committed, send the PROGRAM PAGE command to the target */\r
- if (Write_Memory_Params.ProgrammingMode & PROG_MODE_COMMIT_PAGE_MASK)\r
- {\r
- SPI_SendByte(Write_Memory_Params.ProgrammingCommands[1]);\r
- SPI_SendByte(StartAddress >> 8);\r
- SPI_SendByte(StartAddress & 0xFF);\r
- SPI_SendByte(0x00);\r
- \r
- /* Check if polling is possible, if not switch to timed delay mode */\r
- if (!(PollAddress))\r
- {\r
- Write_Memory_Params.ProgrammingMode &= ~PROG_MODE_PAGED_VALUE_MASK;\r
- Write_Memory_Params.ProgrammingMode |= PROG_MODE_PAGED_TIMEDELAY_MASK; \r
- }\r
-\r
- ProgrammingStatus = V2Protocol_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue,\r
- Write_Memory_Params.DelayMS, Write_Memory_Params.ProgrammingCommands[2]);\r
- }\r
- }\r
- else\r
- {\r
- /* Word/byte mode memory programming */\r
- for (uint16_t CurrentByte = 0; CurrentByte < Write_Memory_Params.BytesToWrite; CurrentByte++)\r
- {\r
- bool IsOddByte = (CurrentByte & 0x01);\r
- uint8_t ByteToWrite = *(NextWriteByte++);\r
- \r
- if (IsOddByte && (V2Command == CMD_READ_FLASH_ISP))\r
- Write_Memory_Params.ProgrammingCommands[0] |= READ_WRITE_HIGH_BYTE_MASK;\r
- else\r
- Write_Memory_Params.ProgrammingCommands[0] &= ~READ_WRITE_HIGH_BYTE_MASK; \r
- \r
- SPI_SendByte(Write_Memory_Params.ProgrammingCommands[0]);\r
- SPI_SendByte(CurrentAddress >> 8);\r
- SPI_SendByte(CurrentAddress & 0xFF);\r
- SPI_SendByte(ByteToWrite);\r
- \r
- if (ByteToWrite != PollValue)\r
- {\r
- if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))\r
- Write_Memory_Params.ProgrammingCommands[2] |= READ_WRITE_HIGH_BYTE_MASK;\r
- \r
- PollAddress = (CurrentAddress & 0xFFFF);\r
- }\r
-\r
- if (IsOddByte || (V2Command == CMD_PROGRAM_EEPROM_ISP))\r
- CurrentAddress++;\r
- \r
- ProgrammingStatus = V2Protocol_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue,\r
- Write_Memory_Params.DelayMS, Write_Memory_Params.ProgrammingCommands[2]);\r
- \r
- if (ProgrammingStatus != STATUS_CMD_OK)\r
- break;\r
- }\r
- }\r
-\r
- Endpoint_Write_Byte(V2Command);\r
- Endpoint_Write_Byte(ProgrammingStatus);\r
- \r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_READ_FLASH_ISP and CMD_READ_EEPROM_ISP commands, reading in bytes,\r
- * words or pages of data from the attached device.\r
- *\r
- * \param V2Command Issued V2 Protocol command byte from the host\r
- */\r
-static void V2Protocol_Command_ReadMemory(uint8_t V2Command)\r
-{\r
- struct\r
- {\r
- uint16_t BytesToRead;\r
- uint8_t ReadMemoryCommand;\r
- } Read_Memory_Params;\r
- \r
- Endpoint_Read_Stream_LE(&Read_Memory_Params, sizeof(Read_Memory_Params));\r
- Read_Memory_Params.BytesToRead = SwapEndian_16(Read_Memory_Params.BytesToRead);\r
- \r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
- \r
- Endpoint_Write_Byte(V2Command);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- \r
- for (uint16_t CurrentByte = 0; CurrentByte < Read_Memory_Params.BytesToRead; CurrentByte++)\r
- {\r
- bool IsOddByte = (CurrentByte & 0x01);\r
-\r
- if (IsOddByte && (V2Command == CMD_READ_FLASH_ISP))\r
- Read_Memory_Params.ReadMemoryCommand |= READ_WRITE_HIGH_BYTE_MASK;\r
- else\r
- Read_Memory_Params.ReadMemoryCommand &= ~READ_WRITE_HIGH_BYTE_MASK;\r
-\r
- SPI_SendByte(Read_Memory_Params.ReadMemoryCommand);\r
- SPI_SendByte(CurrentAddress >> 8);\r
- SPI_SendByte(CurrentAddress & 0xFF);\r
- Endpoint_Write_Byte(SPI_ReceiveByte());\r
- \r
- /* Check if the endpoint bank is currently full */\r
- if (!(Endpoint_IsReadWriteAllowed()))\r
- {\r
- Endpoint_ClearIN();\r
- Endpoint_WaitUntilReady();\r
- }\r
- \r
- if ((IsOddByte && (V2Command == CMD_READ_FLASH_ISP)) || (V2Command == CMD_READ_EEPROM_ISP))\r
- CurrentAddress++;\r
- }\r
-\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
-\r
- bool IsEndpointFull = !(Endpoint_IsReadWriteAllowed());\r
- Endpoint_ClearIN();\r
- \r
- /* Ensure last packet is a short packet to terminate the transfer */\r
- if (IsEndpointFull)\r
- {\r
- Endpoint_WaitUntilReady(); \r
- Endpoint_ClearIN();\r
- Endpoint_WaitUntilReady(); \r
- }\r
-}\r
-\r
-/** Handler for the CMD_CHI_ERASE_ISP command, clearing the target's FLASH memory. */\r
-static void V2Protocol_Command_ChipErase(void)\r
-{\r
- struct\r
- {\r
- uint8_t EraseDelayMS;\r
- uint8_t PollMethod;\r
- uint8_t EraseCommandBytes[4];\r
- } Erase_Chip_Params;\r
- \r
- Endpoint_Read_Stream_LE(&Erase_Chip_Params, sizeof(Erase_Chip_Params));\r
- \r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
- \r
- uint8_t ResponseStatus = STATUS_CMD_OK;\r
- \r
- for (uint8_t SByte = 0; SByte < sizeof(Erase_Chip_Params.EraseCommandBytes); SByte++)\r
- SPI_SendByte(Erase_Chip_Params.EraseCommandBytes[SByte]);\r
-\r
- if (!(Erase_Chip_Params.PollMethod))\r
- V2Protocol_DelayMS(Erase_Chip_Params.EraseDelayMS);\r
- else\r
- ResponseStatus = V2Protocol_WaitWhileTargetBusy();\r
- \r
- Endpoint_Write_Byte(CMD_CHIP_ERASE_ISP);\r
- Endpoint_Write_Byte(ResponseStatus);\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_READ_FUSE_ISP, CMD_READ_LOCK_ISP, CMD_READ_SIGNATURE_ISP and CMD_READ_OSCCAL commands,\r
- * reading the requested configuration byte from the device.\r
- *\r
- * \param V2Command Issued V2 Protocol command byte from the host\r
- */\r
-static void V2Protocol_Command_ReadFuseLockSigOSCCAL(uint8_t V2Command)\r
-{\r
- struct\r
- {\r
- uint8_t RetByte;\r
- uint8_t ReadCommandBytes[4];\r
- } Read_FuseLockSigOSCCAL_Params;\r
- \r
- Endpoint_Read_Stream_LE(&Read_FuseLockSigOSCCAL_Params, sizeof(Read_FuseLockSigOSCCAL_Params));\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
-\r
- uint8_t ResponseBytes[4];\r
- \r
- for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++)\r
- ResponseBytes[RByte] = SPI_TransferByte(Read_FuseLockSigOSCCAL_Params.ReadCommandBytes[RByte]);\r
- \r
- Endpoint_Write_Byte(V2Command);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_Write_Byte(ResponseBytes[Read_FuseLockSigOSCCAL_Params.RetByte - 1]);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_WRITE_FUSE_ISP and CMD_WRITE_LOCK_ISP commands, writing the requested configuration\r
- * byte to the device.\r
- *\r
- * \param V2Command Issued V2 Protocol command byte from the host\r
- */\r
-static void V2Protocol_Command_WriteFuseLock(uint8_t V2Command)\r
-{\r
- struct\r
- {\r
- uint8_t WriteCommandBytes[4];\r
- } Write_FuseLockSig_Params;\r
- \r
- Endpoint_Read_Stream_LE(&Write_FuseLockSig_Params, sizeof(Write_FuseLockSig_Params));\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
-\r
- for (uint8_t SByte = 0; SByte < sizeof(Write_FuseLockSig_Params.WriteCommandBytes); SByte++)\r
- SPI_SendByte(Write_FuseLockSig_Params.WriteCommandBytes[SByte]);\r
- \r
- Endpoint_Write_Byte(V2Command);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_SPI_MULTI command, writing and reading arbitrary SPI data to and from the attached device. */\r
-static void V2Protocol_Command_SPIMulti(void)\r
-{\r
- struct\r
- {\r
- uint8_t TxBytes;\r
- uint8_t RxBytes;\r
- uint8_t RxStartAddr;\r
- uint8_t TxData[255];\r
- } SPI_Multi_Params;\r
- \r
- Endpoint_Read_Stream_LE(&SPI_Multi_Params, sizeof(SPI_Multi_Params) - sizeof(SPI_Multi_Params.TxData));\r
- Endpoint_Read_Stream_LE(&SPI_Multi_Params.TxData, SPI_Multi_Params.TxBytes);\r
- \r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
- \r
- Endpoint_Write_Byte(CMD_SPI_MULTI);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
-\r
- uint8_t CurrTxPos = 0;\r
- uint8_t CurrRxPos = 0;\r
-\r
- /* Write out bytes to transmit until the start of the bytes to receive is met */\r
- while (CurrTxPos < SPI_Multi_Params.RxStartAddr)\r
- {\r
- if (CurrTxPos < SPI_Multi_Params.TxBytes)\r
- SPI_SendByte(SPI_Multi_Params.TxData[CurrTxPos]);\r
- else\r
- SPI_SendByte(0);\r
- \r
- CurrTxPos++;\r
- }\r
-\r
- /* Transmit remaining bytes with padding as needed, read in response bytes */\r
- while (CurrRxPos < SPI_Multi_Params.RxBytes)\r
- {\r
- if (CurrTxPos < SPI_Multi_Params.TxBytes)\r
- Endpoint_Write_Byte(SPI_TransferByte(SPI_Multi_Params.TxData[CurrTxPos++]));\r
- else\r
- Endpoint_Write_Byte(SPI_ReceiveByte());\r
- \r
- CurrRxPos++;\r
- } \r
- \r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_ClearIN();\r
-}\r
projects / pub / lufa.git / blobdiff