X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/cd39c38d5f39d89da989859afd72576b4c1532aa..a8b66f318dda3cc18dfcedaa3af3d01ab68b82e8:/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c diff --git a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c index e00254211..027400c7b 100644 --- a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c +++ b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c @@ -3,7 +3,7 @@ Copyright (C) Dean Camera, 2010. dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com + www.lufa-lib.org */ /* @@ -53,13 +53,13 @@ TMC_Capabilities_t Capabilities = }; /** Current TMC control request that is being processed */ -uint8_t RequestInProgess = 0; +uint8_t RequestInProgress = 0; /** Stream callback abort flag for bulk IN data */ -bool IsTMCBulkINReset = false; +bool IsTMCBulkINReset = false; /** Stream callback abort flag for bulk OUT data */ -bool IsTMCBulkOUTReset = false; +bool IsTMCBulkOUTReset = false; /** Last used tag value for data transfers */ uint8_t CurrentTransferTag = 0; @@ -118,29 +118,25 @@ void EVENT_USB_Device_Disconnect(void) */ void EVENT_USB_Device_ConfigurationChanged(void) { - LEDs_SetAllLEDs(LEDMASK_USB_READY); - - /* Setup TMC In and Out Endpoints */ - if (!(Endpoint_ConfigureEndpoint(TMC_IN_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_IN, TMC_IO_EPSIZE, - ENDPOINT_BANK_SINGLE))) - { - LEDs_SetAllLEDs(LEDMASK_USB_ERROR); - } - - if (!(Endpoint_ConfigureEndpoint(TMC_OUT_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_OUT, TMC_IO_EPSIZE, - ENDPOINT_BANK_SINGLE))) - { - LEDs_SetAllLEDs(LEDMASK_USB_ERROR); - } + bool ConfigSuccess = true; + + /* Setup TMC In, Out and Notification Endpoints */ + ConfigSuccess &= Endpoint_ConfigureEndpoint(TMC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN, + TMC_IO_EPSIZE, ENDPOINT_BANK_SINGLE); + ConfigSuccess &= Endpoint_ConfigureEndpoint(TMC_IN_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_IN, + TMC_IO_EPSIZE, ENDPOINT_BANK_SINGLE); + ConfigSuccess &= Endpoint_ConfigureEndpoint(TMC_OUT_EPNUM, EP_TYPE_BULK, ENDPOINT_DIR_OUT, + TMC_IO_EPSIZE, ENDPOINT_BANK_SINGLE); + + /* Indicate endpoint configuration success or failure */ + LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR); } -/** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific - * control requests that are not handled internally by the USB library (including the CDC control commands, - * which are all issued via the control endpoint), so that they can be handled appropriately for the application. +/** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to + * the device from the USB host before passing along unhandled control requests to the library for processing + * internally. */ -void EVENT_USB_Device_UnhandledControlRequest(void) +void EVENT_USB_Device_ControlRequest(void) { uint8_t TMCRequestStatus = TMC_STATUS_SUCCESS; @@ -150,10 +146,8 @@ void EVENT_USB_Device_UnhandledControlRequest(void) case Req_InitiateAbortBulkOut: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_ENDPOINT)) { - Endpoint_ClearSETUP(); - /* Check that no split transaction is already in progress and the data transfer tag is valid */ - if (RequestInProgess != 0) + if (RequestInProgress != 0) { TMCRequestStatus = TMC_STATUS_SPLIT_IN_PROGRESS; } @@ -167,8 +161,10 @@ void EVENT_USB_Device_UnhandledControlRequest(void) IsTMCBulkOUTReset = true; /* Save the split request for later checking when a new request is received */ - RequestInProgess = Req_InitiateAbortBulkOut; + RequestInProgress = Req_InitiateAbortBulkOut; } + + Endpoint_ClearSETUP(); /* Write the request response byte */ Endpoint_Write_Byte(TMCRequestStatus); @@ -181,16 +177,16 @@ void EVENT_USB_Device_UnhandledControlRequest(void) case Req_CheckAbortBulkOutStatus: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_ENDPOINT)) { - Endpoint_ClearSETUP(); - /* Check that an ABORT BULK OUT transaction has been requested and that the request has completed */ - if (RequestInProgess != Req_InitiateAbortBulkOut) + if (RequestInProgress != Req_InitiateAbortBulkOut) TMCRequestStatus = TMC_STATUS_SPLIT_NOT_IN_PROGRESS; else if (IsTMCBulkOUTReset) TMCRequestStatus = TMC_STATUS_PENDING; else - RequestInProgess = 0; - + RequestInProgress = 0; + + Endpoint_ClearSETUP(); + /* Write the request response bytes */ Endpoint_Write_Byte(TMCRequestStatus); Endpoint_Write_Word_LE(0); @@ -204,10 +200,8 @@ void EVENT_USB_Device_UnhandledControlRequest(void) case Req_InitiateAbortBulkIn: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_ENDPOINT)) { - Endpoint_ClearSETUP(); - /* Check that no split transaction is already in progress and the data transfer tag is valid */ - if (RequestInProgess != 0) + if (RequestInProgress != 0) { TMCRequestStatus = TMC_STATUS_SPLIT_IN_PROGRESS; } @@ -218,11 +212,13 @@ void EVENT_USB_Device_UnhandledControlRequest(void) else { /* Indicate that all in-progress/pending data IN requests should be aborted */ - IsTMCBulkINReset = true; + IsTMCBulkINReset = true; /* Save the split request for later checking when a new request is received */ - RequestInProgess = Req_InitiateAbortBulkIn; + RequestInProgress = Req_InitiateAbortBulkIn; } + + Endpoint_ClearSETUP(); /* Write the request response bytes */ Endpoint_Write_Byte(TMCRequestStatus); @@ -236,16 +232,16 @@ void EVENT_USB_Device_UnhandledControlRequest(void) case Req_CheckAbortBulkInStatus: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_ENDPOINT)) { - Endpoint_ClearSETUP(); - /* Check that an ABORT BULK IN transaction has been requested and that the request has completed */ - if (RequestInProgess != Req_InitiateAbortBulkIn) + if (RequestInProgress != Req_InitiateAbortBulkIn) TMCRequestStatus = TMC_STATUS_SPLIT_NOT_IN_PROGRESS; else if (IsTMCBulkINReset) TMCRequestStatus = TMC_STATUS_PENDING; else - RequestInProgess = 0; - + RequestInProgress = 0; + + Endpoint_ClearSETUP(); + /* Write the request response bytes */ Endpoint_Write_Byte(TMCRequestStatus); Endpoint_Write_Word_LE(0); @@ -259,10 +255,8 @@ void EVENT_USB_Device_UnhandledControlRequest(void) case Req_InitiateClear: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) { - Endpoint_ClearSETUP(); - /* Check that no split transaction is already in progress */ - if (RequestInProgess != 0) + if (RequestInProgress != 0) { Endpoint_Write_Byte(TMC_STATUS_SPLIT_IN_PROGRESS); } @@ -273,8 +267,10 @@ void EVENT_USB_Device_UnhandledControlRequest(void) IsTMCBulkOUTReset = true; /* Save the split request for later checking when a new request is received */ - RequestInProgess = Req_InitiateClear; + RequestInProgress = Req_InitiateClear; } + + Endpoint_ClearSETUP(); /* Write the request response byte */ Endpoint_Write_Byte(TMCRequestStatus); @@ -287,16 +283,16 @@ void EVENT_USB_Device_UnhandledControlRequest(void) case Req_CheckClearStatus: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) { - Endpoint_ClearSETUP(); - /* Check that a CLEAR transaction has been requested and that the request has completed */ - if (RequestInProgess != Req_InitiateClear) + if (RequestInProgress != Req_InitiateClear) TMCRequestStatus = TMC_STATUS_SPLIT_NOT_IN_PROGRESS; else if (IsTMCBulkINReset || IsTMCBulkOUTReset) TMCRequestStatus = TMC_STATUS_PENDING; else - RequestInProgess = 0; - + RequestInProgress = 0; + + Endpoint_ClearSETUP(); + /* Write the request response bytes */ Endpoint_Write_Byte(TMCRequestStatus); Endpoint_Write_Byte(0); @@ -309,13 +305,10 @@ void EVENT_USB_Device_UnhandledControlRequest(void) case Req_GetCapabilities: if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) { - /* Acknowledge the SETUP packet, ready for data transfer */ Endpoint_ClearSETUP(); /* Write the device capabilities to the control endpoint */ - Endpoint_Write_Control_Stream_LE(&Capabilities, sizeof(TMC_Capabilities_t)); - - /* Finalize the stream transfer to send the last packet or clear the host abort */ + Endpoint_Write_Control_Stream_LE(&Capabilities, sizeof(TMC_Capabilities_t)); Endpoint_ClearOUT(); } @@ -329,32 +322,36 @@ void TMC_Task(void) /* Device must be connected and configured for the task to run */ if (USB_DeviceState != DEVICE_STATE_Configured) return; - - Endpoint_SelectEndpoint(TMC_OUT_EPNUM); - if (Endpoint_IsOUTReceived()) + TMC_MessageHeader_t MessageHeader; + + /* Try to read in a TMC message from the interface, process if one is available */ + if (ReadTMCHeader(&MessageHeader)) { - TMC_MessageHeader_t MessageHeader; + /* Indicate busy */ + LEDs_SetAllLEDs(LEDMASK_USB_BUSY); - Endpoint_Read_Stream_LE(&MessageHeader, sizeof(MessageHeader), StreamCallback_AbortOUTOnRequest); - CurrentTransferTag = MessageHeader.Tag; - switch (MessageHeader.MessageID) { case TMC_MESSAGEID_DEV_DEP_MSG_OUT: - + Endpoint_Discard_Stream(MessageHeader.TransferSize, StreamCallback_AbortOUTOnRequest); + Endpoint_ClearOUT(); break; case TMC_MESSAGEID_DEV_DEP_MSG_IN: + Endpoint_ClearOUT(); - break; - case TMC_MESSAGEID_DEV_VENDOR_OUT: + MessageHeader.TransferSize = 3; + WriteTMCHeader(&MessageHeader); + Endpoint_Write_Stream_LE("TMC", 3, StreamCallback_AbortINOnRequest); + Endpoint_ClearIN(); break; - case TMC_MESSAGEID_DEV_VENDOR_IN: + default: + Endpoint_StallTransaction(); break; } - - Endpoint_ClearOUT(); + + LEDs_SetAllLEDs(LEDMASK_USB_READY); } /* All pending data has been processed - reset the data abort flags */ @@ -362,6 +359,51 @@ void TMC_Task(void) IsTMCBulkOUTReset = false; } +/** Attempts to read in the TMC message header from the TMC interface. + * + * \param[out] MessageHeader Pointer to a location where the read header (if any) should be stored + * + * \return Boolean true if a header was read, false otherwise + */ +bool ReadTMCHeader(TMC_MessageHeader_t* const MessageHeader) +{ + /* Select the Data Out endpoint */ + Endpoint_SelectEndpoint(TMC_OUT_EPNUM); + + /* Abort if no command has been sent from the host */ + if (!(Endpoint_IsOUTReceived())) + return false; + + /* Read in the header of the command from the host */ + Endpoint_Read_Stream_LE(MessageHeader, sizeof(TMC_MessageHeader_t), StreamCallback_AbortOUTOnRequest); + + /* Store the new command tag value for later use */ + CurrentTransferTag = MessageHeader->Tag; + + /* Indicate if the command has been aborted or not */ + return !(IsTMCBulkOUTReset); +} + +bool WriteTMCHeader(TMC_MessageHeader_t* const MessageHeader) +{ + /* Compute the next transfer tag value, must be between 1 and 254 */ + if (++CurrentTransferTag == 0xFF) + CurrentTransferTag = 1; + + /* Set the message tag of the command header */ + MessageHeader->Tag = CurrentTransferTag; + MessageHeader->InverseTag = ~CurrentTransferTag; + + /* Select the Data In endpoint */ + Endpoint_SelectEndpoint(TMC_IN_EPNUM); + + /* Send the command header to the host */ + Endpoint_Write_Stream_LE(MessageHeader, sizeof(TMC_MessageHeader_t), StreamCallback_AbortINOnRequest); + + /* Indicate if the command has been aborted or not */ + return !(IsTMCBulkINReset); +} + /** Stream callback function for the Endpoint stream write functions. This callback will abort the current stream transfer * if a TMC Abort Bulk IN request has been issued to the control endpoint. */ @@ -387,3 +429,4 @@ uint8_t StreamCallback_AbortOUTOnRequest(void) /* Continue with the current stream operation */ return STREAMCALLBACK_Continue; } +