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Add proper reset handling to the USB Printer Device Class driver.

This commit is contained in:
Dean Camera 2013-05-05 19:32:07 +00:00
parent 95ba6527a5
commit 961da384f9
2 changed files with 27 additions and 4 deletions
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19
LUFA/Drivers/USB/Class/Device/PrinterClassDevice.c
View File

@ -59,7 +59,7 @@ void PRNT_Device_ProcessControlRequest(USB_ClassInfo_PRNT_Device_t* const PRNTIn
}
uint16_t IEEEStringLen = strlen(PRNTInterfaceInfo->Config.IEEE1284String);
Endpoint_Write_16_BE(IEEEStringLen + 1);
Endpoint_Write_16_BE(IEEEStringLen);
Endpoint_Write_Control_Stream_LE(PRNTInterfaceInfo->Config.IEEE1284String, IEEEStringLen);
Endpoint_ClearStatusStage();
}
@ -87,6 +87,8 @@ void PRNT_Device_ProcessControlRequest(USB_ClassInfo_PRNT_Device_t* const PRNTIn
Endpoint_ClearSETUP();
Endpoint_ClearStatusStage();
PRNTInterfaceInfo->State.IsPrinterReset = true;
EVENT_PRNT_Device_SoftReset(PRNTInterfaceInfo);
}
@ -122,6 +124,21 @@ void PRNT_Device_USBTask(USB_ClassInfo_PRNT_Device_t* const PRNTInterfaceInfo)
if (Endpoint_IsINReady())
PRNT_Device_Flush(PRNTInterfaceInfo);
#endif
if (PRNTInterfaceInfo->State.IsPrinterReset)
{
Endpoint_ResetEndpoint(PRNTInterfaceInfo->Config.DataOUTEndpoint.Address);
Endpoint_ResetEndpoint(PRNTInterfaceInfo->Config.DataINEndpoint.Address);
Endpoint_SelectEndpoint(PRNTInterfaceInfo->Config.DataOUTEndpoint.Address);
Endpoint_ClearStall();
Endpoint_ResetDataToggle();
Endpoint_SelectEndpoint(PRNTInterfaceInfo->Config.DataINEndpoint.Address);
Endpoint_ClearStall();
Endpoint_ResetDataToggle();
PRNTInterfaceInfo->State.IsPrinterReset = false;
}
}
uint8_t PRNT_Device_SendString(USB_ClassInfo_PRNT_Device_t* const PRNTInterfaceInfo,

12
LUFA/Drivers/USB/Class/Device/PrinterClassDevice.h
View File

@ -87,14 +87,20 @@
USB_Endpoint_Table_t DataOUTEndpoint; /**< Data OUT endpoint configuration table. */
char* IEEE1284String; /**< IEEE 1284 identification string, sent to the host during enumeration
* to identify the printer model, manufacturer and other characteristics. */
* to identify the printer model, manufacturer and other characteristics.
*/
} Config; /**< Config data for the USB class interface within the device. All elements in this section
* <b>must</b> be set or the interface will fail to enumerate and operate correctly.
*/
struct
{
uint8_t PortStatus; /**< Current status of the Printer virtual port, a collection of \c PRNT_PORTSTATUS_*
* bitmask values. */
* bitmask values.
*/
volatile bool IsPrinterReset; /**< Flag indicating that the host has requested that the Printer interface be reset
* and that all current Mass Storage operations should immediately abort.
*/
} State; /**< State data for the USB class interface within the device. All elements in this section
* are reset to their defaults when the interface is enumerated.
*/
@ -131,7 +137,7 @@
*
* \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class configuration and state.
*/
void EVENT_PRNT_Device_SoftReset(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
void EVENT_PRNT_Device_SoftReset(USB_ClassInfo_PRNT_Device_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/** Sends a given data buffer to the attached USB host, if connected. If a host is not connected when the function is
* called, the string is discarded. Bytes will be queued for transmission to the host until either the endpoint bank