diff options
Diffstat (limited to 'lib/lufa/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c')
| -rw-r--r-- | lib/lufa/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c | 531 |
1 files changed, 0 insertions, 531 deletions
diff --git a/lib/lufa/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c b/lib/lufa/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c deleted file mode 100644 index 6553504d5e..0000000000 --- a/lib/lufa/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.c +++ /dev/null @@ -1,531 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2017. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2017 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 disclaims 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 - * - * ISP Protocol handler, to process V2 Protocol wrapped ISP commands used in Atmel programmer devices. - */ - -#include "ISPProtocol.h" - -#if defined(ENABLE_ISP_PROTOCOL) || defined(__DOXYGEN__) - -/** Handler for the CMD_ENTER_PROGMODE_ISP command, which attempts to enter programming mode on - * the attached device, returning success or failure back to the host. - */ -void ISPProtocol_EnterISPMode(void) -{ - struct - { - uint8_t TimeoutMS; - uint8_t PinStabDelayMS; - uint8_t ExecutionDelayMS; - uint8_t SynchLoops; - uint8_t ByteDelay; - uint8_t PollValue; - uint8_t PollIndex; - uint8_t EnterProgBytes[4]; - } Enter_ISP_Params; - - Endpoint_Read_Stream_LE(&Enter_ISP_Params, sizeof(Enter_ISP_Params), NULL); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - uint8_t ResponseStatus = STATUS_CMD_FAILED; - - CurrentAddress = 0; - - /* Perform execution delay, initialize SPI bus */ - ISPProtocol_DelayMS(Enter_ISP_Params.ExecutionDelayMS); - ISPTarget_EnableTargetISP(); - - ISPTarget_ChangeTargetResetLine(true); - ISPProtocol_DelayMS(Enter_ISP_Params.PinStabDelayMS); - - /* Continuously attempt to synchronize with the target until either the number of attempts specified - * by the host has exceeded, or the the device sends back the expected response values */ - while (Enter_ISP_Params.SynchLoops-- && TimeoutTicksRemaining) - { - uint8_t ResponseBytes[4]; - - for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++) - { - ISPProtocol_DelayMS(Enter_ISP_Params.ByteDelay); - ResponseBytes[RByte] = ISPTarget_TransferByte(Enter_ISP_Params.EnterProgBytes[RByte]); - } - - /* Check if polling disabled, or if the polled value matches the expected value */ - if (!(Enter_ISP_Params.PollIndex) || (ResponseBytes[Enter_ISP_Params.PollIndex - 1] == Enter_ISP_Params.PollValue)) - { - ResponseStatus = STATUS_CMD_OK; - break; - } - else - { - ISPTarget_ChangeTargetResetLine(false); - ISPProtocol_DelayMS(Enter_ISP_Params.PinStabDelayMS); - ISPTarget_ChangeTargetResetLine(true); - ISPProtocol_DelayMS(Enter_ISP_Params.PinStabDelayMS); - } - } - - Endpoint_Write_8(CMD_ENTER_PROGMODE_ISP); - Endpoint_Write_8(ResponseStatus); - Endpoint_ClearIN(); -} - -/** Handler for the CMD_LEAVE_ISP command, which releases the target from programming mode. */ -void ISPProtocol_LeaveISPMode(void) -{ - struct - { - uint8_t PreDelayMS; - uint8_t PostDelayMS; - } Leave_ISP_Params; - - Endpoint_Read_Stream_LE(&Leave_ISP_Params, sizeof(Leave_ISP_Params), NULL); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - /* Perform pre-exit delay, release the target /RESET, disable the SPI bus and perform the post-exit delay */ - ISPProtocol_DelayMS(Leave_ISP_Params.PreDelayMS); - ISPTarget_ChangeTargetResetLine(false); - ISPTarget_DisableTargetISP(); - ISPProtocol_DelayMS(Leave_ISP_Params.PostDelayMS); - - Endpoint_Write_8(CMD_LEAVE_PROGMODE_ISP); - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_ClearIN(); -} - -/** Handler for the CMD_PROGRAM_FLASH_ISP and CMD_PROGRAM_EEPROM_ISP commands, writing out bytes, - * words or pages of data to the attached device. - * - * \param[in] V2Command Issued V2 Protocol command byte from the host - */ -void ISPProtocol_ProgramMemory(uint8_t V2Command) -{ - struct - { - uint16_t BytesToWrite; - uint8_t ProgrammingMode; - uint8_t DelayMS; - uint8_t ProgrammingCommands[3]; - uint8_t PollValue1; - uint8_t PollValue2; - uint8_t ProgData[256]; // Note, the Jungo driver has a very short ACK timeout period, need to buffer the - } Write_Memory_Params; // whole page and ACK the packet as fast as possible to prevent it from aborting - - Endpoint_Read_Stream_LE(&Write_Memory_Params, (sizeof(Write_Memory_Params) - - sizeof(Write_Memory_Params.ProgData)), NULL); - Write_Memory_Params.BytesToWrite = SwapEndian_16(Write_Memory_Params.BytesToWrite); - - if (Write_Memory_Params.BytesToWrite > sizeof(Write_Memory_Params.ProgData)) - { - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - Endpoint_Write_8(V2Command); - Endpoint_Write_8(STATUS_CMD_FAILED); - Endpoint_ClearIN(); - return; - } - - Endpoint_Read_Stream_LE(&Write_Memory_Params.ProgData, Write_Memory_Params.BytesToWrite, NULL); - - // The driver will terminate transfers that are a round multiple of the endpoint bank in size with a ZLP, need - // to catch this and discard it before continuing on with packet processing to prevent communication issues - if (((sizeof(uint8_t) + sizeof(Write_Memory_Params) - sizeof(Write_Memory_Params.ProgData)) + - Write_Memory_Params.BytesToWrite) % AVRISP_DATA_EPSIZE == 0) - { - Endpoint_ClearOUT(); - Endpoint_WaitUntilReady(); - } - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - uint8_t ProgrammingStatus = STATUS_CMD_OK; - uint8_t PollValue = (V2Command == CMD_PROGRAM_FLASH_ISP) ? Write_Memory_Params.PollValue1 : - Write_Memory_Params.PollValue2; - uint16_t PollAddress = 0; - uint8_t* NextWriteByte = Write_Memory_Params.ProgData; - uint16_t PageStartAddress = (CurrentAddress & 0xFFFF); - - for (uint16_t CurrentByte = 0; CurrentByte < Write_Memory_Params.BytesToWrite; CurrentByte++) - { - uint8_t ByteToWrite = *(NextWriteByte++); - uint8_t ProgrammingMode = Write_Memory_Params.ProgrammingMode; - - /* Check to see if we need to send a LOAD EXTENDED ADDRESS command to the target */ - if (MustLoadExtendedAddress) - { - ISPTarget_LoadExtendedAddress(); - MustLoadExtendedAddress = false; - } - - ISPTarget_SendByte(Write_Memory_Params.ProgrammingCommands[0]); - ISPTarget_SendByte(CurrentAddress >> 8); - ISPTarget_SendByte(CurrentAddress & 0xFF); - ISPTarget_SendByte(ByteToWrite); - - /* AVR FLASH addressing requires us to modify the write command based on if we are writing a high - * or low byte at the current word address */ - if (V2Command == CMD_PROGRAM_FLASH_ISP) - Write_Memory_Params.ProgrammingCommands[0] ^= READ_WRITE_HIGH_BYTE_MASK; - - /* Check to see if we have a valid polling address */ - if (!(PollAddress) && (ByteToWrite != PollValue)) - { - if ((CurrentByte & 0x01) && (V2Command == CMD_PROGRAM_FLASH_ISP)) - Write_Memory_Params.ProgrammingCommands[2] |= READ_WRITE_HIGH_BYTE_MASK; - else - Write_Memory_Params.ProgrammingCommands[2] &= ~READ_WRITE_HIGH_BYTE_MASK; - - PollAddress = (CurrentAddress & 0xFFFF); - } - - /* If in word programming mode, commit the byte to the target's memory */ - if (!(ProgrammingMode & PROG_MODE_PAGED_WRITES_MASK)) - { - /* If the current polling address is invalid, switch to timed delay write completion mode */ - if (!(PollAddress) && !(ProgrammingMode & PROG_MODE_WORD_READYBUSY_MASK)) - ProgrammingMode = (ProgrammingMode & ~PROG_MODE_WORD_VALUE_MASK) | PROG_MODE_WORD_TIMEDELAY_MASK; - - ProgrammingStatus = ISPTarget_WaitForProgComplete(ProgrammingMode, PollAddress, PollValue, - Write_Memory_Params.DelayMS, - Write_Memory_Params.ProgrammingCommands[2]); - - /* Abort the programming loop early if the byte/word programming failed */ - if (ProgrammingStatus != STATUS_CMD_OK) - break; - - /* Must reset the polling address afterwards, so it is not erroneously used for the next byte */ - PollAddress = 0; - } - - /* EEPROM just increments the address each byte, flash needs to increment on each word and - * also check to ensure that a LOAD EXTENDED ADDRESS command is issued each time the extended - * address boundary has been crossed during FLASH memory programming */ - if ((CurrentByte & 0x01) || (V2Command == CMD_PROGRAM_EEPROM_ISP)) - { - CurrentAddress++; - - if ((V2Command == CMD_PROGRAM_FLASH_ISP) && !(CurrentAddress & 0xFFFF)) - MustLoadExtendedAddress = true; - } - } - - /* If the current page must be committed, send the PROGRAM PAGE command to the target */ - if (Write_Memory_Params.ProgrammingMode & PROG_MODE_COMMIT_PAGE_MASK) - { - ISPTarget_SendByte(Write_Memory_Params.ProgrammingCommands[1]); - ISPTarget_SendByte(PageStartAddress >> 8); - ISPTarget_SendByte(PageStartAddress & 0xFF); - ISPTarget_SendByte(0x00); - - /* Check if polling is enabled and possible, if not switch to timed delay mode */ - if ((Write_Memory_Params.ProgrammingMode & PROG_MODE_PAGED_VALUE_MASK) && !(PollAddress)) - { - Write_Memory_Params.ProgrammingMode = (Write_Memory_Params.ProgrammingMode & ~PROG_MODE_PAGED_VALUE_MASK) | - PROG_MODE_PAGED_TIMEDELAY_MASK; - } - - ProgrammingStatus = ISPTarget_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue, - Write_Memory_Params.DelayMS, - Write_Memory_Params.ProgrammingCommands[2]); - - /* Check to see if the FLASH address has crossed the extended address boundary */ - if ((V2Command == CMD_PROGRAM_FLASH_ISP) && !(CurrentAddress & 0xFFFF)) - MustLoadExtendedAddress = true; - } - - Endpoint_Write_8(V2Command); - Endpoint_Write_8(ProgrammingStatus); - Endpoint_ClearIN(); -} - -/** Handler for the CMD_READ_FLASH_ISP and CMD_READ_EEPROM_ISP commands, reading in bytes, - * words or pages of data from the attached device. - * - * \param[in] V2Command Issued V2 Protocol command byte from the host - */ -void ISPProtocol_ReadMemory(uint8_t V2Command) -{ - struct - { - uint16_t BytesToRead; - uint8_t ReadMemoryCommand; - } Read_Memory_Params; - - Endpoint_Read_Stream_LE(&Read_Memory_Params, sizeof(Read_Memory_Params), NULL); - Read_Memory_Params.BytesToRead = SwapEndian_16(Read_Memory_Params.BytesToRead); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - Endpoint_Write_8(V2Command); - Endpoint_Write_8(STATUS_CMD_OK); - - /* Read each byte from the device and write them to the packet for the host */ - for (uint16_t CurrentByte = 0; CurrentByte < Read_Memory_Params.BytesToRead; CurrentByte++) - { - /* Check to see if we need to send a LOAD EXTENDED ADDRESS command to the target */ - if (MustLoadExtendedAddress) - { - ISPTarget_LoadExtendedAddress(); - MustLoadExtendedAddress = false; - } - - /* Read the next byte from the desired memory space in the device */ - ISPTarget_SendByte(Read_Memory_Params.ReadMemoryCommand); - ISPTarget_SendByte(CurrentAddress >> 8); - ISPTarget_SendByte(CurrentAddress & 0xFF); - Endpoint_Write_8(ISPTarget_ReceiveByte()); - - /* Check if the endpoint bank is currently full, if so send the packet */ - if (!(Endpoint_IsReadWriteAllowed())) - { - Endpoint_ClearIN(); - Endpoint_WaitUntilReady(); - } - - /* AVR FLASH addressing requires us to modify the read command based on if we are reading a high - * or low byte at the current word address */ - if (V2Command == CMD_READ_FLASH_ISP) - Read_Memory_Params.ReadMemoryCommand ^= READ_WRITE_HIGH_BYTE_MASK; - - /* EEPROM just increments the address each byte, flash needs to increment on each word and - * also check to ensure that a LOAD EXTENDED ADDRESS command is issued each time the extended - * address boundary has been crossed */ - if ((CurrentByte & 0x01) || (V2Command == CMD_READ_EEPROM_ISP)) - { - CurrentAddress++; - - if ((V2Command != CMD_READ_EEPROM_ISP) && !(CurrentAddress & 0xFFFF)) - MustLoadExtendedAddress = true; - } - } - - Endpoint_Write_8(STATUS_CMD_OK); - - bool IsEndpointFull = !(Endpoint_IsReadWriteAllowed()); - Endpoint_ClearIN(); - - /* Ensure last packet is a short packet to terminate the transfer */ - if (IsEndpointFull) - { - Endpoint_WaitUntilReady(); - Endpoint_ClearIN(); - Endpoint_WaitUntilReady(); - } -} - -/** Handler for the CMD_CHI_ERASE_ISP command, clearing the target's FLASH memory. */ -void ISPProtocol_ChipErase(void) -{ - struct - { - uint8_t EraseDelayMS; - uint8_t PollMethod; - uint8_t EraseCommandBytes[4]; - } Erase_Chip_Params; - - Endpoint_Read_Stream_LE(&Erase_Chip_Params, sizeof(Erase_Chip_Params), NULL); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - uint8_t ResponseStatus = STATUS_CMD_OK; - - /* Send the chip erase commands as given by the host to the device */ - for (uint8_t SByte = 0; SByte < sizeof(Erase_Chip_Params.EraseCommandBytes); SByte++) - ISPTarget_SendByte(Erase_Chip_Params.EraseCommandBytes[SByte]); - - /* Use appropriate command completion check as given by the host (delay or busy polling) */ - if (!(Erase_Chip_Params.PollMethod)) - ISPProtocol_DelayMS(Erase_Chip_Params.EraseDelayMS); - else - ResponseStatus = ISPTarget_WaitWhileTargetBusy(); - - Endpoint_Write_8(CMD_CHIP_ERASE_ISP); - Endpoint_Write_8(ResponseStatus); - Endpoint_ClearIN(); -} - -/** Handler for the CMD_READ_FUSE_ISP, CMD_READ_LOCK_ISP, CMD_READ_SIGNATURE_ISP and CMD_READ_OSCCAL commands, - * reading the requested configuration byte from the device. - * - * \param[in] V2Command Issued V2 Protocol command byte from the host - */ -void ISPProtocol_ReadFuseLockSigOSCCAL(uint8_t V2Command) -{ - struct - { - uint8_t RetByte; - uint8_t ReadCommandBytes[4]; - } Read_FuseLockSigOSCCAL_Params; - - Endpoint_Read_Stream_LE(&Read_FuseLockSigOSCCAL_Params, sizeof(Read_FuseLockSigOSCCAL_Params), NULL); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - uint8_t ResponseBytes[4]; - - /* Send the Fuse or Lock byte read commands as given by the host to the device, store response */ - for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++) - ResponseBytes[RByte] = ISPTarget_TransferByte(Read_FuseLockSigOSCCAL_Params.ReadCommandBytes[RByte]); - - Endpoint_Write_8(V2Command); - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_Write_8(ResponseBytes[Read_FuseLockSigOSCCAL_Params.RetByte - 1]); - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_ClearIN(); -} - -/** Handler for the CMD_WRITE_FUSE_ISP and CMD_WRITE_LOCK_ISP commands, writing the requested configuration - * byte to the device. - * - * \param[in] V2Command Issued V2 Protocol command byte from the host - */ -void ISPProtocol_WriteFuseLock(uint8_t V2Command) -{ - struct - { - uint8_t WriteCommandBytes[4]; - } Write_FuseLockSig_Params; - - Endpoint_Read_Stream_LE(&Write_FuseLockSig_Params, sizeof(Write_FuseLockSig_Params), NULL); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - /* Send the Fuse or Lock byte program commands as given by the host to the device */ - for (uint8_t SByte = 0; SByte < sizeof(Write_FuseLockSig_Params.WriteCommandBytes); SByte++) - ISPTarget_SendByte(Write_FuseLockSig_Params.WriteCommandBytes[SByte]); - - Endpoint_Write_8(V2Command); - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_ClearIN(); -} - -/** Handler for the CMD_SPI_MULTI command, writing and reading arbitrary SPI data to and from the attached device. */ -void ISPProtocol_SPIMulti(void) -{ - struct - { - uint8_t TxBytes; - uint8_t RxBytes; - uint8_t RxStartAddr; - uint8_t TxData[255]; - } SPI_Multi_Params; - - Endpoint_Read_Stream_LE(&SPI_Multi_Params, (sizeof(SPI_Multi_Params) - sizeof(SPI_Multi_Params.TxData)), NULL); - Endpoint_Read_Stream_LE(&SPI_Multi_Params.TxData, SPI_Multi_Params.TxBytes, NULL); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - Endpoint_Write_8(CMD_SPI_MULTI); - Endpoint_Write_8(STATUS_CMD_OK); - - uint8_t CurrTxPos = 0; - uint8_t CurrRxPos = 0; - - /* Write out bytes to transmit until the start of the bytes to receive is met */ - while (CurrTxPos < SPI_Multi_Params.RxStartAddr) - { - if (CurrTxPos < SPI_Multi_Params.TxBytes) - ISPTarget_SendByte(SPI_Multi_Params.TxData[CurrTxPos]); - else - ISPTarget_SendByte(0); - - CurrTxPos++; - } - - /* Transmit remaining bytes with padding as needed, read in response bytes */ - while (CurrRxPos < SPI_Multi_Params.RxBytes) - { - if (CurrTxPos < SPI_Multi_Params.TxBytes) - Endpoint_Write_8(ISPTarget_TransferByte(SPI_Multi_Params.TxData[CurrTxPos++])); - else - Endpoint_Write_8(ISPTarget_ReceiveByte()); - - /* Check to see if we have filled the endpoint bank and need to send the packet */ - if (!(Endpoint_IsReadWriteAllowed())) - { - Endpoint_ClearIN(); - Endpoint_WaitUntilReady(); - } - - CurrRxPos++; - } - - Endpoint_Write_8(STATUS_CMD_OK); - - bool IsEndpointFull = !(Endpoint_IsReadWriteAllowed()); - Endpoint_ClearIN(); - - /* Ensure last packet is a short packet to terminate the transfer */ - if (IsEndpointFull) - { - Endpoint_WaitUntilReady(); - Endpoint_ClearIN(); - Endpoint_WaitUntilReady(); - } -} - -/** Blocking delay for a given number of milliseconds. This provides a simple wrapper around - * the avr-libc provided delay function, so that the delay function can be called with a - * constant value (to prevent run-time floating point operations being required). - * - * \param[in] DelayMS Number of milliseconds to delay for - */ -void ISPProtocol_DelayMS(uint8_t DelayMS) -{ - while (DelayMS-- && TimeoutTicksRemaining) - Delay_MS(1); -} - -#endif - |