+++ /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
-/** Current memory address for FLASH/EEPROM memory read/write commands */\r
-uint32_t CurrentAddress;\r
-\r
-/** Flag to indicate that the next read/write operation must update the device's current address */\r
-bool MustSetAddress;\r
-\r
-\r
-/** ISR for the management of the command execution timeout counter */\r
-ISR(TIMER0_COMPA_vect, ISR_BLOCK)\r
-{\r
- if (TimeoutMSRemaining)\r
- TimeoutMSRemaining--;\r
-}\r
-\r
-/** Master V2 Protocol packet handler, for received 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)\r
-{\r
- uint8_t V2Command = Endpoint_Read_Byte();\r
- \r
- TimeoutMSRemaining = COMMAND_TIMEOUT_MS;\r
- TIMSK0 |= (1 << OCIE0A);\r
-\r
- switch (V2Command)\r
- {\r
- case CMD_SIGN_ON:\r
- V2Protocol_SignOn();\r
- break;\r
- case CMD_SET_PARAMETER:\r
- case CMD_GET_PARAMETER:\r
- V2Protocol_GetSetParam(V2Command);\r
- break;\r
- case CMD_LOAD_ADDRESS:\r
- V2Protocol_LoadAddress();\r
- break;\r
- case CMD_RESET_PROTECTION:\r
- V2Protocol_ResetProtection();\r
- break;\r
-#if defined(ENABLE_ISP_PROTOCOL)\r
- case CMD_ENTER_PROGMODE_ISP:\r
- ISPProtocol_EnterISPMode();\r
- break;\r
- case CMD_LEAVE_PROGMODE_ISP:\r
- ISPProtocol_LeaveISPMode();\r
- break;\r
- case CMD_PROGRAM_FLASH_ISP:\r
- case CMD_PROGRAM_EEPROM_ISP:\r
- ISPProtocol_ProgramMemory(V2Command); \r
- break;\r
- case CMD_READ_FLASH_ISP:\r
- case CMD_READ_EEPROM_ISP:\r
- ISPProtocol_ReadMemory(V2Command);\r
- break;\r
- case CMD_CHIP_ERASE_ISP:\r
- ISPProtocol_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
- ISPProtocol_ReadFuseLockSigOSCCAL(V2Command);\r
- break;\r
- case CMD_PROGRAM_FUSE_ISP:\r
- case CMD_PROGRAM_LOCK_ISP:\r
- ISPProtocol_WriteFuseLock(V2Command);\r
- break;\r
- case CMD_SPI_MULTI:\r
- ISPProtocol_SPIMulti();\r
- break;\r
-#endif\r
-#if defined(ENABLE_XPROG_PROTOCOL)\r
- case CMD_XPROG_SETMODE:\r
- XPROGProtocol_SetMode();\r
- break;\r
- case CMD_XPROG:\r
- XPROGProtocol_Command();\r
- break;\r
-#endif\r
- default:\r
- V2Protocol_UnknownCommand(V2Command);\r
- break;\r
- }\r
- \r
- TIMSK0 &= ~(1 << OCIE0A);\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_UnknownCommand(const 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_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_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_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
-\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_GetSetParam(const 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_LoadAddress(void)\r
-{\r
- Endpoint_Read_Stream_BE(&CurrentAddress, sizeof(CurrentAddress));\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);\r
- \r
- MustSetAddress = true;\r
-\r
- Endpoint_Write_Byte(CMD_LOAD_ADDRESS);\r
- Endpoint_Write_Byte(STATUS_CMD_OK);\r
- Endpoint_ClearIN();\r
-}\r
projects / pub / lufa.git / blobdiff