forked from mirrors/qmk_firmware
285 lines
15 KiB
C
285 lines
15 KiB
C
/*
|
|
LUFA Library
|
|
Copyright (C) Dean Camera, 2017.
|
|
|
|
dean [at] fourwalledcubicle [dot] com
|
|
www.lufa-lib.org
|
|
*/
|
|
|
|
/*
|
|
Copyright 2017 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 disclaims 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_USBClassPrinterHost_Dependencies Module Source Dependencies
|
|
* The following files must be built with any user project that uses this module:
|
|
* - LUFA/Drivers/USB/Class/Host/PrinterClassHost.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
|
|
*
|
|
* \section Sec_USBClassPrinterHost_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/PrinterClassCommon.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
|
|
{
|
|
struct
|
|
{
|
|
USB_Pipe_Table_t DataINPipe; /**< Data IN Pipe configuration table. */
|
|
USB_Pipe_Table_t DataOUTPipe; /**< Data OUT Pipe configuration table. */
|
|
} 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. */
|
|
} 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 for the possible error codes returned by the \ref PRNT_Host_ConfigurePipes() function. */
|
|
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: */
|
|
/** 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.
|
|
*
|
|
* \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] ConfigDescriptorData 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* ConfigDescriptorData) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3);
|
|
|
|
/** 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);
|
|
|
|
/** 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,
|
|
const char* const 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,
|
|
const 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) ATTR_NON_NULL_PTR_ARG(1);
|
|
|
|
/** 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) ATTR_NON_NULL_PTR_ARG(1);
|
|
|
|
/** 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_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
|
|
static uint8_t DCOMP_PRNT_Host_NextPRNTInterfaceEndpoint(void* const CurrentDescriptor)
|
|
ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
|
|
#endif
|
|
#endif
|
|
|
|
/* Disable C linkage for C++ Compilers: */
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
/** @} */
|
|
|