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Diffstat (limited to 'Projects/AVRISP-MKII/Lib/V2Protocol.c')
| -rw-r--r-- | Projects/AVRISP-MKII/Lib/V2Protocol.c | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/Projects/AVRISP-MKII/Lib/V2Protocol.c b/Projects/AVRISP-MKII/Lib/V2Protocol.c deleted file mode 100644 index fd64c5a1e8..0000000000 --- a/Projects/AVRISP-MKII/Lib/V2Protocol.c +++ /dev/null @@ -1,267 +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 - * - * V2Protocol handler, to process V2 Protocol commands used in Atmel programmer devices. - */ - -#define INCLUDE_FROM_V2PROTOCOL_C -#include "V2Protocol.h" - -/** Current memory address for FLASH/EEPROM memory read/write commands */ -uint32_t CurrentAddress; - -/** Flag to indicate that the next read/write operation must update the device's current extended FLASH address */ -bool MustLoadExtendedAddress; - - -/** ISR to manage timeouts whilst processing a V2Protocol command */ -ISR(TIMER0_COMPA_vect, ISR_NOBLOCK) -{ - if (TimeoutTicksRemaining) - TimeoutTicksRemaining--; - else - TCCR0B = 0; -} - -/** Initializes the hardware and software associated with the V2 protocol command handling. */ -void V2Protocol_Init(void) -{ - #if defined(ADC) && !defined(NO_VTARGET_DETECT) - /* Initialize the ADC converter for VTARGET level detection on supported AVR models */ - ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128); - ADC_SetupChannel(VTARGET_ADC_CHANNEL); - ADC_StartReading(VTARGET_REF_MASK | ADC_RIGHT_ADJUSTED | VTARGET_ADC_CHANNEL_MASK); - #endif - - /* Timeout timer initialization (~10ms period) */ - OCR0A = (((F_CPU / 1024) / 100) - 1); - TCCR0A = (1 << WGM01); - TIMSK0 = (1 << OCIE0A); - - V2Params_LoadNonVolatileParamValues(); - - #if defined(ENABLE_ISP_PROTOCOL) - ISPTarget_ConfigureRescueClock(); - #endif -} - -/** Master V2 Protocol packet handler, for received V2 Protocol packets from a connected host. - * This routine decodes the issued command and passes off the handling of the command to the - * appropriate function. - */ -void V2Protocol_ProcessCommand(void) -{ - uint8_t V2Command = Endpoint_Read_8(); - - /* Reset timeout counter duration and start the timer */ - TimeoutTicksRemaining = COMMAND_TIMEOUT_TICKS; - TCCR0B = ((1 << CS02) | (1 << CS00)); - - switch (V2Command) - { - case CMD_SIGN_ON: - V2Protocol_SignOn(); - break; - case CMD_SET_PARAMETER: - case CMD_GET_PARAMETER: - V2Protocol_GetSetParam(V2Command); - break; - case CMD_LOAD_ADDRESS: - V2Protocol_LoadAddress(); - break; - case CMD_RESET_PROTECTION: - V2Protocol_ResetProtection(); - break; -#if defined(ENABLE_ISP_PROTOCOL) - case CMD_ENTER_PROGMODE_ISP: - ISPProtocol_EnterISPMode(); - break; - case CMD_LEAVE_PROGMODE_ISP: - ISPProtocol_LeaveISPMode(); - break; - case CMD_PROGRAM_FLASH_ISP: - case CMD_PROGRAM_EEPROM_ISP: - ISPProtocol_ProgramMemory(V2Command); - break; - case CMD_READ_FLASH_ISP: - case CMD_READ_EEPROM_ISP: - ISPProtocol_ReadMemory(V2Command); - break; - case CMD_CHIP_ERASE_ISP: - ISPProtocol_ChipErase(); - break; - case CMD_READ_FUSE_ISP: - case CMD_READ_LOCK_ISP: - case CMD_READ_SIGNATURE_ISP: - case CMD_READ_OSCCAL_ISP: - ISPProtocol_ReadFuseLockSigOSCCAL(V2Command); - break; - case CMD_PROGRAM_FUSE_ISP: - case CMD_PROGRAM_LOCK_ISP: - ISPProtocol_WriteFuseLock(V2Command); - break; - case CMD_SPI_MULTI: - ISPProtocol_SPIMulti(); - break; -#endif -#if defined(ENABLE_XPROG_PROTOCOL) - case CMD_XPROG_SETMODE: - XPROGProtocol_SetMode(); - break; - case CMD_XPROG: - XPROGProtocol_Command(); - break; -#endif - default: - V2Protocol_UnknownCommand(V2Command); - break; - } - - /* Disable the timeout management timer */ - TCCR0B = 0; - - Endpoint_WaitUntilReady(); - Endpoint_SelectEndpoint(AVRISP_DATA_OUT_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_OUT); -} - -/** Handler for unknown V2 protocol commands. This discards all sent data and returns a - * STATUS_CMD_UNKNOWN status back to the host. - * - * \param[in] V2Command Issued V2 Protocol command byte from the host - */ -static void V2Protocol_UnknownCommand(const uint8_t V2Command) -{ - /* Discard all incoming data */ - while (Endpoint_BytesInEndpoint() == AVRISP_DATA_EPSIZE) - { - Endpoint_ClearOUT(); - Endpoint_WaitUntilReady(); - } - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - Endpoint_Write_8(V2Command); - Endpoint_Write_8(STATUS_CMD_UNKNOWN); - Endpoint_ClearIN(); -} - -/** Handler for the CMD_SIGN_ON command, returning the programmer ID string to the host. */ -static void V2Protocol_SignOn(void) -{ - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - Endpoint_Write_8(CMD_SIGN_ON); - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_Write_8(sizeof(PROGRAMMER_ID) - 1); - Endpoint_Write_Stream_LE(PROGRAMMER_ID, (sizeof(PROGRAMMER_ID) - 1), NULL); - Endpoint_ClearIN(); -} - -/** Handler for the CMD_RESET_PROTECTION command, implemented as a dummy ACK function as - * no target short-circuit protection is currently implemented. - */ -static void V2Protocol_ResetProtection(void) -{ - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - Endpoint_Write_8(CMD_RESET_PROTECTION); - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_ClearIN(); -} - - -/** Handler for the CMD_SET_PARAMETER and CMD_GET_PARAMETER commands from the host, setting or - * getting a device parameter's value from the parameter table. - * - * \param[in] V2Command Issued V2 Protocol command byte from the host - */ -static void V2Protocol_GetSetParam(const uint8_t V2Command) -{ - uint8_t ParamID = Endpoint_Read_8(); - uint8_t ParamValue; - - if (V2Command == CMD_SET_PARAMETER) - ParamValue = Endpoint_Read_8(); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - Endpoint_Write_8(V2Command); - - uint8_t ParamPrivs = V2Params_GetParameterPrivileges(ParamID); - - if ((V2Command == CMD_SET_PARAMETER) && (ParamPrivs & PARAM_PRIV_WRITE)) - { - Endpoint_Write_8(STATUS_CMD_OK); - V2Params_SetParameterValue(ParamID, ParamValue); - } - else if ((V2Command == CMD_GET_PARAMETER) && (ParamPrivs & PARAM_PRIV_READ)) - { - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_Write_8(V2Params_GetParameterValue(ParamID)); - } - else - { - Endpoint_Write_8(STATUS_CMD_FAILED); - } - - Endpoint_ClearIN(); -} - -/** Handler for the CMD_LOAD_ADDRESS command, loading the given device address into a - * global storage variable for later use, and issuing LOAD EXTENDED ADDRESS commands - * to the attached device as required. - */ -static void V2Protocol_LoadAddress(void) -{ - Endpoint_Read_Stream_BE(&CurrentAddress, sizeof(CurrentAddress), NULL); - - Endpoint_ClearOUT(); - Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPADDR); - Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - - if (CurrentAddress & (1UL << 31)) - MustLoadExtendedAddress = true; - - Endpoint_Write_8(CMD_LOAD_ADDRESS); - Endpoint_Write_8(STATUS_CMD_OK); - Endpoint_ClearIN(); -} - |