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Added PRNT_Host_SendByte() and PRNT_Host_Flush() functions to the Host mode Printer Class driver.

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Modified PRNT_Host_USBTask() to flush the output pipe on each call.
This commit is contained in:
Dean Camera 2010-09-11 04:09:48 +00:00
parent 41c1fb3843
commit 12fb68ea1f
3 changed files with 97 additions and 14 deletions
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60
LUFA/Drivers/USB/Class/Host/Printer.c
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@ -125,6 +125,11 @@ static uint8_t DCOMP_PRNT_NextPRNTInterfaceEndpoint(void* CurrentDescriptor)
return DESCRIPTOR_SEARCH_NotFound;
}
void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
{
PRNT_Host_Flush(PRNTInterfaceInfo);
}
uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
{
if (PRNTInterfaceInfo->State.AlternateSetting)
@ -182,6 +187,61 @@ uint8_t PRNT_Host_SoftReset(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
return USB_Host_SendControlRequest(NULL);
}
uint8_t PRNT_Host_Flush(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
{
if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive))
return PIPE_READYWAIT_DeviceDisconnected;
uint8_t ErrorCode;
Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_Unfreeze();
if (!(Pipe_BytesInPipe()))
return PIPE_READYWAIT_NoError;
bool BankFull = !(Pipe_IsReadWriteAllowed());
Pipe_ClearOUT();
if (BankFull)
{
if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
return ErrorCode;
Pipe_ClearOUT();
}
Pipe_Freeze();
return PIPE_READYWAIT_NoError;
}
uint8_t PRNT_Host_SendByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
const uint8_t Data)
{
if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive))
return PIPE_READYWAIT_DeviceDisconnected;
uint8_t ErrorCode;
Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_Unfreeze();
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_ClearOUT();
if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
return ErrorCode;
}
Pipe_Write_Byte(Data);
Pipe_Freeze();
return PIPE_READYWAIT_NoError;
}
uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
void* Buffer,
const uint16_t Length)