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gphoto2-port-library.h
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/** \file gphoto2-port-library.h
*
* \author Copyright 2001 Lutz Mueller <[email protected]>
*
* \par License
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* \par
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* \par
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef LIBGPHOTO2_GPHOTO2_PORT_LIBRARY_H
#define LIBGPHOTO2_GPHOTO2_PORT_LIBRARY_H
#include <gphoto2/gphoto2-port-info-list.h>
#include <gphoto2/gphoto2-port.h>
/**
* \brief The port operations
*
* These operations are to be implemented and set by the port library,
* which drives the lowlevel protocol (serial, usb, etc.).
*
* They are accessed using the accessor functions, like gp_port_open(),
* gp_port_read() and gp_port_write().
*/
typedef struct _GPPortOperations {
int (*init) (GPPort *);
int (*exit) (GPPort *);
int (*open) (GPPort *);
int (*close) (GPPort *);
int (*read) (GPPort *, char *, int);
int (*check_int)(GPPort *, char *, int, int);
int (*write) (GPPort *, const char *, int);
int (*update) (GPPort *);
/* Pointers to devices. Please note these are stubbed so there is
no need to #ifdef GP_PORT_* anymore. */
/* for serial devices */
int (*get_pin) (GPPort *, GPPin, GPLevel*);
int (*set_pin) (GPPort *, GPPin, GPLevel);
int (*send_break)(GPPort *, int);
int (*flush) (GPPort *, int);
/* for USB devices */
int (*find_device)(GPPort * dev, int idvendor, int idproduct);
int (*find_device_by_class)(GPPort * dev, int class, int subclass, int protocol);
int (*clear_halt) (GPPort * dev, int ep);
int (*msg_write) (GPPort * dev, int request, int value, int index,
char *bytes, int size);
int (*msg_read) (GPPort * dev, int request, int value, int index,
char *bytes, int size);
int (*msg_interface_write) (GPPort * dev, int request,
int value, int index, char *bytes, int size);
int (*msg_interface_read) (GPPort * dev, int request,
int value, int index, char *bytes, int size);
int (*msg_class_write) (GPPort * dev, int request,
int value, int index, char *bytes, int size);
int (*msg_class_read) (GPPort * dev, int request,
int value, int index, char *bytes, int size);
/* For USB disk direct IO devices */
int (*seek) (GPPort * dev, int offset, int whence);
/* For USB Mass Storage raw SCSI ports */
int (*send_scsi_cmd) (GPPort *port, int to_dev,
char *cmd, int cmd_size,
char *sense, int sense_size,
char *data, int data_size);
int (*reset) (GPPort *);
} GPPortOperations;
typedef GPPortType (* GPPortLibraryType) (void);
typedef int (* GPPortLibraryList) (GPPortInfoList *list);
typedef GPPortOperations *(* GPPortLibraryOperations) (void);
/*
* If you want to write an io library, you need to implement the following
* functions. Everything else in your io library should be declared static.
*/
GPPortType gp_port_library_type (void);
int gp_port_library_list (GPPortInfoList *list);
GPPortOperations *gp_port_library_operations (void);
#endif /* !defined(LIBGPHOTO2_GPHOTO2_PORT_LIBRARY_H) */