diff options
3 files changed, 89 insertions, 53 deletions
diff --git a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c index ab98411b7..711ca3fa8 100644 --- a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c +++ b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c @@ -329,36 +329,36 @@ 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;
+
+ /* Check if a TMC packet has been received */
+ if (ReadTMCHeader(&MessageHeader))
{
- TMC_MessageHeader_t MessageHeader;
-
- Endpoint_Read_Stream_LE(&MessageHeader, sizeof(MessageHeader), StreamCallback_AbortOUTOnRequest);
- CurrentTransferTag = MessageHeader.Tag;
+ /* Indicate busy */
+ LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
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:
-
- break;
- case TMC_MESSAGEID_DEV_VENDOR_IN:
+ MessageHeader.TransferSize = 3;
+ WriteTMCHeader(&MessageHeader);
+ Endpoint_Write_Stream_LE("TMC", 3, StreamCallback_AbortINOnRequest);
+ Endpoint_ClearIN();
break;
default:
Endpoint_StallTransaction();
break;
}
-
- Endpoint_ClearOUT();
+
+ LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
/* All pending data has been processed - reset the data abort flags */
@@ -366,6 +366,45 @@ void TMC_Task(void) IsTMCBulkOUTReset = false;
}
+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.
*/
diff --git a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.h b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.h index 191eb40a6..d0db01ef9 100644 --- a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.h +++ b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.h @@ -45,17 +45,20 @@ /* Macros: */
/** LED mask for the library LED driver, to indicate that the USB interface is not ready. */
- #define LEDMASK_USB_NOTREADY LEDS_LED1
+ #define LEDMASK_USB_NOTREADY LEDS_LED1
/** LED mask for the library LED driver, to indicate that the USB interface is enumerating. */
- #define LEDMASK_USB_ENUMERATING (LEDS_LED2 | LEDS_LED3)
+ #define LEDMASK_USB_ENUMERATING (LEDS_LED2 | LEDS_LED3)
/** LED mask for the library LED driver, to indicate that the USB interface is ready. */
- #define LEDMASK_USB_READY (LEDS_LED2 | LEDS_LED4)
+ #define LEDMASK_USB_READY (LEDS_LED2 | LEDS_LED4)
/** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */
- #define LEDMASK_USB_ERROR (LEDS_LED1 | LEDS_LED3)
+ #define LEDMASK_USB_ERROR (LEDS_LED1 | LEDS_LED3)
+ /** LED mask for the library LED driver, to indicate that the USB interface is busy. */
+ #define LEDMASK_USB_BUSY LEDS_LED2
+
#define Req_InitiateAbortBulkOut 0x01
#define Req_CheckAbortBulkOutStatus 0x02
#define Req_InitiateAbortBulkIn 0x03
@@ -139,6 +142,8 @@ /* Function Prototypes: */
void SetupHardware(void);
void TMC_Task(void);
+ bool ReadTMCHeader(TMC_MessageHeader_t* const MessageHeader);
+ bool WriteTMCHeader(TMC_MessageHeader_t* const MessageHeader);
void EVENT_USB_Device_Connect(void);
void EVENT_USB_Device_Disconnect(void);
diff --git a/Demos/Device/LowLevel/MassStorage/MassStorage.c b/Demos/Device/LowLevel/MassStorage/MassStorage.c index 9f13ff927..93b7c6102 100644 --- a/Demos/Device/LowLevel/MassStorage/MassStorage.c +++ b/Demos/Device/LowLevel/MassStorage/MassStorage.c @@ -173,47 +173,35 @@ void MassStorage_Task(void) /* Device must be connected and configured for the task to run */ if (USB_DeviceState != DEVICE_STATE_Configured) return; - - /* Select the Data Out Endpoint */ - Endpoint_SelectEndpoint(MASS_STORAGE_OUT_EPNUM); - - /* Check to see if a command from the host has been issued */ - if (Endpoint_IsReadWriteAllowed()) + + /* Process sent command block from the host if one has been sent */ + if (ReadInCommandBlock()) { /* Indicate busy */ LEDs_SetAllLEDs(LEDMASK_USB_BUSY); - /* Process sent command block from the host */ - if (ReadInCommandBlock()) - { - /* Check direction of command, select Data IN endpoint if data is from the device */ - if (CommandBlock.Flags & COMMAND_DIRECTION_DATA_IN) - Endpoint_SelectEndpoint(MASS_STORAGE_IN_EPNUM); + /* Check direction of command, select Data IN endpoint if data is from the device */ + if (CommandBlock.Flags & COMMAND_DIRECTION_DATA_IN) + Endpoint_SelectEndpoint(MASS_STORAGE_IN_EPNUM); - /* Decode the received SCSI command, set returned status code */ - CommandStatus.Status = SCSI_DecodeSCSICommand() ? Command_Pass : Command_Fail; + /* Decode the received SCSI command, set returned status code */ + CommandStatus.Status = SCSI_DecodeSCSICommand() ? Command_Pass : Command_Fail; - /* Load in the CBW tag into the CSW to link them together */ - CommandStatus.Tag = CommandBlock.Tag; + /* Load in the CBW tag into the CSW to link them together */ + CommandStatus.Tag = CommandBlock.Tag; - /* Load in the data residue counter into the CSW */ - CommandStatus.DataTransferResidue = CommandBlock.DataTransferLength; - - /* Stall the selected data pipe if command failed (if data is still to be transferred) */ - if ((CommandStatus.Status == Command_Fail) && (CommandStatus.DataTransferResidue)) - Endpoint_StallTransaction(); - - /* Return command status block to the host */ - ReturnCommandStatus(); - - /* Indicate ready */ - LEDs_SetAllLEDs(LEDMASK_USB_READY); - } - else - { - /* Indicate error reading in the command block from the host */ - LEDs_SetAllLEDs(LEDMASK_USB_ERROR); - } + /* Load in the data residue counter into the CSW */ + CommandStatus.DataTransferResidue = CommandBlock.DataTransferLength; + + /* Stall the selected data pipe if command failed (if data is still to be transferred) */ + if ((CommandStatus.Status == Command_Fail) && (CommandStatus.DataTransferResidue)) + Endpoint_StallTransaction(); + + /* Return command status block to the host */ + ReturnCommandStatus(); + + /* Indicate ready */ + LEDs_SetAllLEDs(LEDMASK_USB_READY); } /* Check if a Mass Storage Reset occurred */ @@ -244,6 +232,10 @@ static bool ReadInCommandBlock(void) { /* Select the Data Out endpoint */ Endpoint_SelectEndpoint(MASS_STORAGE_OUT_EPNUM); + + /* Abort if no command has been sent from the host */ + if (!(Endpoint_IsOUTReceived())) + return false; /* Read in command block header */ Endpoint_Read_Stream_LE(&CommandBlock, (sizeof(CommandBlock) - sizeof(CommandBlock.SCSICommandData)), |