-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2010.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, distribute, and sell this \r
- software and its documentation for any purpose is hereby granted\r
- without fee, provided that the above copyright notice appear in \r
- all 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(TIMER0_COMPA_vect, ISR_NOBLOCK)\r
-{\r
- if (TimeoutMSRemaining)\r
- TimeoutMSRemaining--;\r
-}\r
-\r
-/** Initializes the hardware and software associated with the V2 protocol command handling. */\r
-void V2Protocol_Init(void)\r
-{\r
- #if defined(ADC)\r
- /* Initialize the ADC converter for VTARGET level detection on supported AVR models */\r
- ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128);\r
- ADC_SetupChannel(VTARGET_ADC_CHANNEL);\r
- ADC_StartReading(VTARGET_ADC_CHANNEL_MASK | ADC_RIGHT_ADJUSTED | ADC_REFERENCE_AVCC);\r
- #endif\r
- \r
- /* Millisecond timer initialization for managing the command timeout counter */\r
- OCR0A = ((F_CPU / 64) / 1000);\r
- TCCR0A = (1 << WGM01);\r
- TIMSK0 = (1 << OCIE0A);\r
- \r
- V2Params_LoadNonVolatileParamValues();\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
- /* Start the timeout management timer */\r
- TimeoutMSRemaining = COMMAND_TIMEOUT_MS;\r
- TCCR0B = ((1 << CS01) | (1 << CS00));\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
- /* Disable the timeout management timer */\r
- TCCR0B = 0;\r
-\r
- Endpoint_WaitUntilReady();\r
- Endpoint_SelectEndpoint(AVRISP_DATA_OUT_EPNUM);\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_SelectEndpoint(AVRISP_DATA_IN_EPNUM);\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_SelectEndpoint(AVRISP_DATA_IN_EPNUM);\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), NO_STREAM_CALLBACK);\r
- Endpoint_ClearIN();\r
-}\r
-\r
-/** Handler for the CMD_RESET_PROTECTION command, implemented as a dummy ACK function as\r
- * no target short-circuit protection is currently implemented.\r
- */\r
-static void V2Protocol_ResetProtection(void)\r
-{\r
- Endpoint_ClearOUT();\r
- Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);\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_SelectEndpoint(AVRISP_DATA_IN_EPNUM);\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), NO_STREAM_CALLBACK);\r
-\r
- Endpoint_ClearOUT();\r
- Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);\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
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2011.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2011 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 disclaim 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(WDT_vect, ISR_BLOCK)
+{
+ TimeoutExpired = true;
+ wdt_disable();
+}
+
+/** Initializes the hardware and software associated with the V2 protocol command handling. */
+void V2Protocol_Init(void)
+{
+ #if defined(ADC)
+ /* 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
+
+ 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();
+
+ /* Start the watchdog with timeout interrupt enabled to manage the timeout */
+ TimeoutExpired = false;
+ wdt_enable(WDTO_1S);
+ WDTCSR |= (1 << WDIE);
+
+ 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 watchdog timer */
+ wdt_disable();
+
+ Endpoint_WaitUntilReady();
+ Endpoint_SelectEndpoint(AVRISP_DATA_OUT_EPNUM);
+ 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_EPNUM);
+ 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_EPNUM);
+ 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_EPNUM);
+ 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_EPNUM);
+ 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_EPNUM);
+ 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();
+}
+
projects / pub / USBasp.git / blobdiff