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/** \file
*
* \author Copyright 2001 Lutz Mueller <lutz@users.sf.net>
*
* \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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GPHOTO2_PORT_H__
#define __GPHOTO2_PORT_H__
#include <gphoto2/gphoto2-port-info-list.h>
/* For portability */
#include <gphoto2/gphoto2-port-portability.h>
#ifdef OS2
#include <gphoto2/gphoto2-port-portability-os2.h>
#include <os2.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef TRUE
#define TRUE (0==0)
#endif
#ifndef FALSE
#define FALSE (1==0)
#endif
/**
* \brief Serial parity
*
* Parity of the serial port.
*/
typedef enum _GPPortSerialParity
{
GP_PORT_SERIAL_PARITY_OFF = 0, /**< \brief Parity is off (disabled) */
GP_PORT_SERIAL_PARITY_EVEN, /**< \brief Parity is even. */
GP_PORT_SERIAL_PARITY_ODD /**< \brief Parity is odd. */
} GPPortSerialParity;
/** \brief Maximum length of receive buffer */
#define GP_PORT_MAX_BUF_LEN 4096
/**
* \brief Port settings for serial ports.
*/
typedef struct _GPPortSettingsSerial {
char port[128]; /**< The portname (/dev/ttyX)*/
int speed; /**< The baudrate of the device. */
int bits; /**< How many bits data. */
GPPortSerialParity parity; /**< parity data, see GP_PORT_SERIAL_PARITY_
defines */
int stopbits; /**< How many stop bits are used. */
} GPPortSettingsSerial;
/**
* \brief Port settings for USB ports.
*/
typedef struct _GPPortSettingsUSB {
int inep; /**< \brief Bulk IN endpoint used. */
int outep; /**< \brief Bulk OUT endpoint used. */
int intep; /**< \brief Interrupt endpoint used. */
int config; /**< \brief USB bConfigurationValue used. */
int interface; /**< \brief USB Interface number used. */
int altsetting; /**< \brief USB Alternative Setting used. */
int maxpacketsize; /**< \brief Maximum USB packetsize of the IN endpoint. (r/o) */
/* must be last to avoid binary incompatibility.
* luckily we just need to make sure this struct does not
* get larger than _GPPortSettingsSerial. */
char port[64]; /**< \brief USB Portname. Specific to lowlevel USB. */
} GPPortSettingsUSB;
/**
* \brief Port settings for USB mass storage direct IO ports.
*/
typedef struct _GPPortSettingsUsbDiskDirect {
char path[128]; /**< /brief The ports device node path (/dev/sdX)*/
} GPPortSettingsUsbDiskDirect;
/**
* \brief Union of port settings.
*
* This contains a shared union of possible settings for ports needing
* them.
*/
typedef union _GPPortSettings {
GPPortSettingsSerial serial; /**< \brief Serial specific settings */
GPPortSettingsUSB usb; /**< \brief USB specific settings */
GPPortSettingsUsbDiskDirect usbdiskdirect; /**< \brief usb disk direct port specific settings */
} GPPortSettings;
enum {
GP_PORT_USB_ENDPOINT_IN, /**< \brief USB bulk IN ep */
GP_PORT_USB_ENDPOINT_OUT, /**< \brief USB bulk OUT ep */
GP_PORT_USB_ENDPOINT_INT /**< \brief USB Interrupt ep */
};
typedef struct _GPPortPrivateLibrary GPPortPrivateLibrary;
typedef struct _GPPortPrivateCore GPPortPrivateCore;
/**
* \brief The GPhoto port structure.
*
* This structure tracks the physical connection of the device.
* It can correspond the various methods of lowlevel access, serial
* usb and others and abstracts them as much as possible.
*
* Frontends should consider this structure opaque and only use accessor
* functions.
*
* Camera drivers should only access the type and pl members directly,
* and use accessor functions for the rest.
*/
typedef struct _GPPort {
/* For your convenience */
GPPortType type; /**< \brief Actual type of this port */
GPPortSettings settings; /**< \brief Current port settings. */
GPPortSettings settings_pending;/**< \brief Settings to be committed. */
int timeout; /**< \brief Port timeout in milliseconds. */
GPPortPrivateLibrary *pl; /**< \brief Camera driver private data pointer. */
GPPortPrivateCore *pc; /**< \brief Port library private data pointer. */
} GPPort;
int gp_port_new (GPPort **port);
int gp_port_free (GPPort *port);
int gp_port_set_info (GPPort *port, GPPortInfo info);
int gp_port_get_info (GPPort *port, GPPortInfo *info);
int gp_port_open (GPPort *port);
int gp_port_close (GPPort *port);
int gp_port_write (GPPort *port, const char *data, int size);
int gp_port_read (GPPort *port, char *data, int size);
int gp_port_check_int (GPPort *port, char *data, int size);
int gp_port_check_int_fast (GPPort *port, char *data, int size);
int gp_port_get_timeout (GPPort *port, int *timeout);
int gp_port_set_timeout (GPPort *port, int timeout);
int gp_port_set_settings (GPPort *port, GPPortSettings settings);
int gp_port_get_settings (GPPort *port, GPPortSettings *settings);
/**
* \brief Serial pins.
*
* A number of serial pins to trigger and pull. This is necessary
* for some devices that have more than just the regular 3 or 4 wires.
*/
typedef enum _GPPin {
GP_PIN_RTS, /**< \brief RTS line */
GP_PIN_DTR, /**< \brief DTR line */
GP_PIN_CTS, /**< \brief CTS line */
GP_PIN_DSR, /**< \brief DSR line */
GP_PIN_CD, /**< \brief Carrier Detect line */
GP_PIN_RING /**< \brief RING (Modem) line */
} GPPin;
/**
* \brief Level to pull specific lines.
*
* The level on which to pull some of the serial lines.
*/
typedef enum _GPLevel {
GP_LEVEL_LOW = 0, /**< \brief Pull to low (0V) */
GP_LEVEL_HIGH = 1 /**< \brief Pull to high (nV) */
} GPLevel;
int gp_port_get_pin (GPPort *port, GPPin pin, GPLevel *level);
int gp_port_set_pin (GPPort *port, GPPin pin, GPLevel level);
int gp_port_send_break (GPPort *port, int duration);
int gp_port_flush (GPPort *port, int direction);
int gp_port_usb_find_device (GPPort *port, int idvendor, int idproduct);
int gp_port_usb_find_device_by_class (GPPort *port, int mainclass, int subclass, int protocol);
int gp_port_usb_clear_halt (GPPort *port, int ep);
int gp_port_usb_msg_write (GPPort *port, int request, int value,
int index, char *bytes, int size);
int gp_port_usb_msg_read (GPPort *port, int request, int value,
int index, char *bytes, int size);
int gp_port_usb_msg_interface_write (GPPort *port, int request,
int value, int index, char *bytes, int size);
int gp_port_usb_msg_interface_read (GPPort *port, int request,
int value, int index, char *bytes, int size);
int gp_port_usb_msg_class_write (GPPort *port, int request,
int value, int index, char *bytes, int size);
int gp_port_usb_msg_class_read (GPPort *port, int request,
int value, int index, char *bytes, int size);
int gp_port_seek (GPPort *port, int offset, int whence);
/* Error reporting */
int gp_port_set_error (GPPort *port, const char *format, ...)
#ifdef __GNUC__
__attribute__((__format__(printf,2,3)))
#endif
;
const char *gp_port_get_error (GPPort *port);
/* DEPRECATED */
/** \deprecated internal typedef */
typedef GPPort gp_port;
/** \deprecated internal typedef */
typedef GPPortSettings gp_port_settings;
/** \deprecated internal define */
#define PIN_CTS GP_PIN_CTS
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GPHOTO2_PORT_H__ */
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