+ 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
+}\r
+\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[in] V2Command Issued V2 Protocol command byte from the host\r
+ */\r
+static void V2Protocol_Command_Unknown(uint8_t V2Command)\r
+{\r
+ /* Discard all incoming 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. */\r
+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[in] 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_GetParameterPrivileges(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[in] 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[256]; // Note, the Jungo driver has a very short ACK timeout period, need to buffer the\r
+ } Write_Memory_Params; // whole page and ACK the packet as fast as possible to prevent it from aborting\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
+ \r
+ if (Write_Memory_Params.BytesToWrite > sizeof(Write_Memory_Params.ProgData))\r
+ {\r
+ Endpoint_ClearOUT();\r
+ Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
+\r
+ Endpoint_Write_Byte(V2Command);\r
+ Endpoint_Write_Byte(STATUS_CMD_FAILED);\r
+ Endpoint_ClearIN();\r
+ return;\r
+ }\r
+ \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
+ uint8_t* NextWriteByte = Write_Memory_Params.ProgData;\r
+\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
projects / pub / USBasp.git / blobdiff