-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- 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
-/** \ingroup Group_USBClassPrinter\r
- * @defgroup Group_USBClassPrinterHost Printer Class Host Mode Driver\r
- *\r
- * \section Sec_Dependencies Module Source Dependencies\r
- * The following files must be built with any user project that uses this module:\r
- * - LUFA/Drivers/USB/Class/Host/Printer.c\r
- *\r
- * \section Module Description\r
- * Host Mode USB Class driver framework interface, for the Printer USB Class driver.\r
- *\r
- * @{\r
- */\r
-\r
-#ifndef __PRINTER_CLASS_HOST_H__\r
-#define __PRINTER_CLASS_HOST_H__\r
-\r
- /* Includes: */\r
- #include "../../USB.h"\r
- #include "../Common/Printer.h"\r
- \r
- /* Enable C linkage for C++ Compilers: */\r
- #if defined(__cplusplus)\r
- extern "C" {\r
- #endif\r
-\r
- /* Public Interface - May be used in end-application: */\r
- /* Macros: */\r
- \r
- /* Type Defines: */\r
- /** Class state structure. An instance of this structure should be made within the user application,\r
- * and passed to each of the Printer class driver functions as the PRNTInterfaceInfo parameter. This\r
- * stores each Printer interface's configuration and state information.\r
- */\r
- typedef struct\r
- {\r
- const struct\r
- {\r
- uint8_t DataINPipeNumber; /**< Pipe number of the Printer interface's IN data pipe */\r
- bool DataINPipeDoubleBank; /** Indicates if the Printer interface's IN data pipe should use double banking */\r
-\r
- uint8_t DataOUTPipeNumber; /**< Pipe number of the Printer interface's OUT data pipe */\r
- bool DataOUTPipeDoubleBank; /** Indicates if the Printer interface's OUT data pipe should use double banking */\r
- } Config; /**< Config data for the USB class interface within the device. All elements in this section\r
- * <b>must</b> be set or the interface will fail to enumerate and operate correctly.\r
- */\r
- struct\r
- {\r
- bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid\r
- * after \ref PRNT_Host_ConfigurePipes() is called and the Host state machine is in the\r
- * Configured state\r
- */\r
- uint8_t InterfaceNumber; /**< Interface index of the Printer interface within the attached device */\r
- uint8_t AlternateSetting; /**< Alternate setting within the Printer Interface in the attached device */\r
-\r
- uint16_t DataINPipeSize; /**< Size in bytes of the Printer interface's IN data pipe */\r
- uint16_t DataOUTPipeSize; /**< Size in bytes of the Printer interface's OUT data pipe */\r
- } State; /**< State data for the USB class interface within the device. All elements in this section\r
- * <b>may</b> be set to initial values, but may also be ignored to default to sane values when\r
- * the interface is enumerated.\r
- */\r
- } USB_ClassInfo_PRNT_Host_t;\r
-\r
- /* Enums: */\r
- enum PRNTHost_EnumerationFailure_ErrorCodes_t\r
- {\r
- PRNT_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully */\r
- PRNT_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor */\r
- PRNT_ENUMERROR_NoPrinterInterfaceFound = 2, /**< A compatible Printer interface was not found in the device's Configuration Descriptor */\r
- PRNT_ENUMERROR_EndpointsNotFound = 3, /**< Compatible Printer endpoints were not found in the device's interfaces */\r
- };\r
- \r
- /* Function Prototypes: */\r
- /** General management task for a given Printer host class interface, required for the correct operation of\r
- * the interface. This should be called frequently in the main program loop, before the master USB management task\r
- * \ref USB_USBTask().\r
- *\r
- * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state\r
- */\r
- void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
- \r
-\r
- /** Host interface configuration routine, to configure a given Printer host interface instance using the\r
- * Configuration Descriptor read from an attached USB device. This function automatically updates the given Printer\r
- * instance's state values and configures the pipes required to communicate with the interface if it is found within\r
- * the device. This should be called once after the stack has enumerated the attached device, while the host state\r
- * machine is in the Addressed state.\r
- *\r
- * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state\r
- * \param[in] ConfigDescriptorSize Length of the attached device's Configuration Descriptor\r
- * \param[in] DeviceConfigDescriptor Pointer to a buffer containing the attached device's Configuration Descriptor\r
- *\r
- * \return A value from the \ref PRNTHost_EnumerationFailure_ErrorCodes_t enum\r
- */\r
- uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, uint16_t ConfigDescriptorSize,\r
- void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1, 3);\r
- \r
- /** Configures the printer to enable Bidirectional mode, if it is not already in this mode. This should be called\r
- * once the connected device's configuration has been set, to ensure the printer is ready to accept commands.\r
- *\r
- * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state\r
- *\r
- * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum\r
- */\r
- uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
- \r
- /** Retrieves the status of the virtual Printer port's inbound status lines. The result can then be masked against the\r
- * PRNT_PORTSTATUS_* macros to determine the printer port's status.\r
- *\r
- * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state\r
- * \param[out] PortStatus Location where the retrieved port status should be stored\r
- *\r
- * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum\r
- */\r
- uint8_t PRNT_Host_GetPortStatus(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, uint8_t* const PortStatus)\r
- ATTR_NON_NULL_PTR_ARG(1, 2);\r
-\r
- /** Soft-resets the attached printer, readying it for new commands.\r
- *\r
- * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state\r
- *\r
- * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum\r
- */\r
- uint8_t PRNT_Host_SoftReset(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
-\r
- /** Sends the given raw data stream to the attached printer's input endpoint. This should contain commands that the\r
- * printer is able to understand - for example, PCL data. Not all printers accept all printer languages; see\r
- * \ref PRNT_Host_GetDeviceID() for details on determining acceptable languages for an attached printer.\r
- *\r
- * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state\r
- * \param[in] PrinterCommands Pointer to a buffer containing the raw command stream to send to the printer\r
- * \param[in] CommandSize Size in bytes of the command stream to be sent\r
- *\r
- * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum\r
- */\r
- uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, void* PrinterCommands, \r
- uint16_t CommandSize) ATTR_NON_NULL_PTR_ARG(1, 2);\r
-\r
- /** Retrieves the attached printer device's ID string, formatted according to IEEE 1284. This string is sent as a\r
- * Unicode string from the device and is automatically converted to an ASCII encoded C string by this function, thus\r
- * the maximum reportable string length is two less than the size given (to accommodate the Unicode string length\r
- * bytes which are removed).\r
- *\r
- * This string, when supported, contains the model, manufacturer and acceptable printer languages for the attached device.\r
- *\r
- * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state\r
- * \param[out] DeviceIDString Pointer to a buffer where the Device ID string should be stored, in ASCII format\r
- * \param[in] BufferSize Size in bytes of the buffer allocated for the Device ID string\r
- *\r
- * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum\r
- */\r
- uint8_t PRNT_Host_GetDeviceID(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, char* DeviceIDString,\r
- uint16_t BufferSize) ATTR_NON_NULL_PTR_ARG(1);\r
-\r
- /* Private Interface - For use in library only: */\r
- #if !defined(__DOXYGEN__)\r
- /* Macros: */\r
- #define PRINTER_CLASS 0x07\r
- #define PRINTER_SUBCLASS 0x01\r
- #define PRINTER_PROTOCOL 0x02\r
-\r
- #define REQ_GetDeviceID 0\r
- #define REQ_GetPortStatus 1\r
- #define REQ_SoftReset 2\r
- \r
- #define PRNT_FOUND_DATAPIPE_IN (1 << 0)\r
- #define PRNT_FOUND_DATAPIPE_OUT (1 << 1)\r
- \r
- /* Function Prototypes: */\r
- #if defined(INCLUDE_FROM_PRINTER_CLASS_HOST_C) \r
- static uint8_t DComp_NextPRNTInterface(void* const CurrentDescriptor);\r
- static uint8_t DComp_NextPRNTInterfaceEndpoint(void* const CurrentDescriptor);\r
- #endif\r
- #endif\r
- \r
- /* Disable C linkage for C++ Compilers: */\r
- #if defined(__cplusplus)\r
- }\r
- #endif\r
-\r
-#endif\r
-\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
+ * \brief Host mode driver for the library USB Printer Class driver.
+ *
+ * Host mode driver for the library USB Printer Class driver.
+ *
+ * \note This file should not be included directly. It is automatically included as needed by the USB module driver
+ * dispatch header located in LUFA/Drivers/USB.h.
+ */
+
+/** \ingroup Group_USBClassPrinter
+ * \defgroup Group_USBClassPrinterHost Printer Class Host Mode Driver
+ *
+ * \section Sec_Dependencies Module Source Dependencies
+ * The following files must be built with any user project that uses this module:
+ * - LUFA/Drivers/USB/Class/Host/Printer.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
+ *
+ * \section Sec_ModDescription Module Description
+ * Host Mode USB Class driver framework interface, for the Printer USB Class driver.
+ *
+ * @{
+ */
+
+#ifndef __PRINTER_CLASS_HOST_H__
+#define __PRINTER_CLASS_HOST_H__
+
+ /* Includes: */
+ #include "../../USB.h"
+ #include "../Common/Printer.h"
+
+ /* Enable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ extern "C" {
+ #endif
+
+ /* Preprocessor Checks: */
+ #if !defined(__INCLUDE_FROM_PRINTER_DRIVER)
+ #error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
+ #endif
+
+ /* Public Interface - May be used in end-application: */
+ /* Type Defines: */
+ /** \brief Printer Class Host Mode Configuration and State Structure.
+ *
+ * Class state structure. An instance of this structure should be made within the user application,
+ * and passed to each of the Printer class driver functions as the \c PRNTInterfaceInfo parameter. This
+ * stores each Printer interface's configuration and state information.
+ */
+ typedef struct
+ {
+ const struct
+ {
+ uint8_t DataINPipeNumber; /**< Pipe number of the Printer interface's IN data pipe. */
+ bool DataINPipeDoubleBank; /**< Indicates if the Printer interface's IN data pipe should use double banking. */
+
+ uint8_t DataOUTPipeNumber; /**< Pipe number of the Printer interface's OUT data pipe. */
+ bool DataOUTPipeDoubleBank; /**< Indicates if the Printer interface's OUT data pipe should use double banking. */
+ } 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
+ {
+ bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid
+ * after \ref PRNT_Host_ConfigurePipes() is called and the Host state machine is in the
+ * Configured state.
+ */
+ uint8_t InterfaceNumber; /**< Interface index of the Printer interface within the attached device. */
+ uint8_t AlternateSetting; /**< Alternate setting within the Printer Interface in the attached device. */
+
+ uint16_t DataINPipeSize; /**< Size in bytes of the Printer interface's IN data pipe. */
+ uint16_t DataOUTPipeSize; /**< Size in bytes of the Printer interface's OUT data pipe. */
+ } State; /**< State data for the USB class interface within the device. All elements in this section
+ * <b>may</b> be set to initial values, but may also be ignored to default to sane values when
+ * the interface is enumerated.
+ */
+ } USB_ClassInfo_PRNT_Host_t;
+
+ /* Enums: */
+ enum PRNT_Host_EnumerationFailure_ErrorCodes_t
+ {
+ PRNT_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully. */
+ PRNT_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor. */
+ PRNT_ENUMERROR_NoCompatibleInterfaceFound = 2, /**< A compatible Printer interface was not found in the device's Configuration Descriptor. */
+ PRNT_ENUMERROR_PipeConfigurationFailed = 3, /**< One or more pipes for the specified interface could not be configured correctly. */
+ };
+
+ /* Function Prototypes: */
+ /** General management task for a given Printer host class interface, required for the correct operation of
+ * the interface. This should be called frequently in the main program loop, before the master USB management task
+ * \ref USB_USBTask().
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ */
+ void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Host interface configuration routine, to configure a given Printer host interface instance using the
+ * Configuration Descriptor read from an attached USB device. This function automatically updates the given Printer
+ * instance's state values and configures the pipes required to communicate with the interface if it is found within
+ * the device. This should be called once after the stack has enumerated the attached device, while the host state
+ * machine is in the Addressed state.
+ *
+ * \note The pipe index numbers as given in the interface's configuration structure must not overlap with any other
+ * interface, or pipe bank corruption will occur. Gaps in the allocated pipe numbers or non-sequential indexes
+ * within a single interface is allowed, but no two interfaces of any type have have interleaved pipe indexes.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ * \param[in] ConfigDescriptorSize Length of the attached device's Configuration Descriptor.
+ * \param[in] DeviceConfigDescriptor Pointer to a buffer containing the attached device's Configuration Descriptor.
+ *
+ * \return A value from the \ref PRNT_Host_EnumerationFailure_ErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+ uint16_t ConfigDescriptorSize,
+ void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3);
+
+ /** Configures the printer to enable Bidirectional mode, if it is not already in this mode. This should be called
+ * once the connected device's configuration has been set, to ensure the printer is ready to accept commands.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ *
+ * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Retrieves the status of the virtual Printer port's inbound status lines. The result can then be masked against the
+ * \c PRNT_PORTSTATUS_* macros to determine the printer port's status.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ * \param[out] PortStatus Location where the retrieved port status should be stored.
+ *
+ * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_GetPortStatus(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+ uint8_t* const PortStatus)
+ ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+ /** Soft-resets the attached printer, readying it for new commands.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ *
+ * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_SoftReset(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Flushes any data waiting to be sent, ensuring that the send buffer is cleared.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ *
+ * \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_Flush(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Sends the given null terminated string to the attached printer's input endpoint.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ * \param[in] String Pointer to a null terminated string to send.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+ void* String) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+ /** Sends the given raw data stream to the attached printer's input endpoint. This should contain commands that the
+ * printer is able to understand - for example, PCL data. Not all printers accept all printer languages; see
+ * \ref PRNT_Host_GetDeviceID() for details on determining acceptable languages for an attached printer.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ * \param[in] Buffer Pointer to a buffer containing the raw command stream to send to the printer.
+ * \param[in] Length Size in bytes of the command stream to be sent.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+ void* Buffer,
+ const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+ /** Sends a given byte to the attached USB device, if connected. If a device is not connected when the function is called, the
+ * byte is discarded. Bytes will be queued for transmission to the device until either the pipe bank becomes full, or the
+ * \ref PRNT_Host_Flush() function is called to flush the pending data to the host. This allows for multiple bytes to be
+ * packed into a single pipe packet, increasing data throughput.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ * \param[in] Data Byte of data to send to the device.
+ *
+ * \return A value from the \ref Pipe_WaitUntilReady_ErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_SendByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+ const uint8_t Data) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Determines the number of bytes received by the printer interface from the device, waiting to be read. This indicates the number
+ * of bytes in the IN pipe bank only, and thus the number of calls to \ref PRNT_Host_ReceiveByte() which are guaranteed to succeed
+ * immediately. If multiple bytes are to be received, they should be buffered by the user application, as the pipe bank will not be
+ * released back to the USB controller until all bytes are read.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ *
+ * \return Total number of buffered bytes received from the device.
+ */
+ uint16_t PRNT_Host_BytesReceived(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo);
+
+ /** Reads a byte of data from the device. If no data is waiting to be read of if a USB device is not connected, the function
+ * returns a negative value. The \ref PRNT_Host_BytesReceived() function may be queried in advance to determine how many bytes
+ * are currently buffered in the Printer interface's data receive pipe.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ *
+ * \return Next received byte from the device, or a negative value if no data received.
+ */
+ int16_t PRNT_Host_ReceiveByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo);
+
+ /** Retrieves the attached printer device's ID string, formatted according to IEEE 1284. This string is sent as a
+ * Unicode string from the device and is automatically converted to an ASCII encoded C string by this function, thus
+ * the maximum reportable string length is two less than the size given (to accommodate the Unicode string length
+ * bytes which are removed).
+ *
+ * This string, when supported, contains the model, manufacturer and acceptable printer languages for the attached device.
+ *
+ * \param[in,out] PRNTInterfaceInfo Pointer to a structure containing a Printer Class host configuration and state.
+ * \param[out] DeviceIDString Pointer to a buffer where the Device ID string should be stored, in ASCII format.
+ * \param[in] BufferSize Size in bytes of the buffer allocated for the Device ID string.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+ */
+ uint8_t PRNT_Host_GetDeviceID(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+ char* const DeviceIDString,
+ const uint16_t BufferSize) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+ /* Private Interface - For use in library only: */
+ #if !defined(__DOXYGEN__)
+ /* Function Prototypes: */
+ #if defined(__INCLUDE_FROM_PRINTER_HOST_C)
+ static uint8_t DCOMP_PRNT_Host_NextPRNTInterface(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1);
+ static uint8_t DCOMP_PRNT_Host_NextPRNTInterfaceEndpoint(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1);
+ #endif
+ #endif
+
+ /* Disable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ }
+ #endif
+
+#endif
+
+/** @} */
+
projects / pub / USBasp.git / blobdiff