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/*
* STV0674 Vision Camera Chipset Driver
* Copyright 2000 Adam Harrison <adam@antispin.org>
*
* 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.
*
* 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.
*
* 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
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <gphoto2/gphoto2.h>
#include <gphoto2/gphoto2-port.h>
#include "libgphoto2/i18n.h"
#include "stv0674.h"
#include "library.h"
int stv0674_ping(GPPort *port)
{
int ret;
unsigned char reply[4];
ret = gp_port_usb_msg_read (port, CMDID_PING, 0, 0, (char *)reply, 1);
if (ret < GP_OK)
return ret;
if(reply[0] != 0)
{
printf("CMDID_PING successful, but returned bad values?\n");
return GP_ERROR_IO;
}
return GP_OK;
}
int stv0674_file_count(GPPort *port, int *count)
{
int ret;
unsigned char reply[4];
ret = gp_port_usb_msg_read (port, CMDID_ENUMERATE_IMAGES, 0, 0, (char *)reply, 4);
if (ret < GP_OK)
return ret;
*count= ((reply[3]) | (reply[2]<<8) | (reply[1]<<16) | (reply[0]<<24));
return GP_OK;
}
/**
* Get image
*/
int stv0674_get_image_raw(GPPort *port, int image_no, CameraFile *file)
{
return GP_OK;
}
static int setval(unsigned char* where,unsigned long val)
{
where[3]=(val & 0xff);
where[2]=((val >> 8) & 0xff);
where[1]=((val >> 16) & 0xff);
where[0]=((val >> 24) & 0xff);
return 0;
}
int stv0674_get_image(GPPort *port, int image_no, CameraFile *file)
{
unsigned char header[0x200];/*block for header */
int size;
int whole,remain;
int current;
int ret;
unsigned char imagno[8];
unsigned char reply[4];
unsigned char * data;
memset(imagno,0,8);
image_no+=2;
setval(imagno,image_no);
ret = gp_port_usb_msg_write (port, CMDID_SET_IMAGE, 0, 0, (char *)imagno, 4);
if (ret < GP_OK)
return ret;
ret = gp_port_usb_msg_read (port, CMDID_IHAVENOIDEA, 0, 0, (char *)reply, 2);
if (ret < GP_OK)
return ret;
setval(&imagno[4],0x200);/* we want 512 bytes */
ret = gp_port_usb_msg_write (port,
CMDID_READ_IMAGE,
READ_IMAGE_VALUE_RESET,
0,
(char *)imagno,
8);
if (ret < GP_OK)
return ret;
gp_port_read(port, (char *)header, 0x200);
size=(header[0x47]<<8) | header[0x48];
/*create data block */
data=malloc(size);
if (!data)
return GP_ERROR_NO_MEMORY;
setval(&imagno[4],0x1000);/* we want 4096 bytes */
whole=size / 0x1000;
remain=size % 0x1000;
for(current=0;current<whole;current+=1)
{
ret = gp_port_usb_msg_write (port,
CMDID_READ_IMAGE,
READ_IMAGE_VALUE_READ,
0,
(char *)imagno,
8);
if (ret < GP_OK) {
free (data);
return ret;
}
gp_port_read(port, (char *)&data[current*0x1000], 0x1000);
}
if(remain)
{
setval(&imagno[4],remain);/* we want remaining bytes */
ret = gp_port_usb_msg_write (port,
CMDID_READ_IMAGE,
READ_IMAGE_VALUE_READ,
0,
(char *)imagno,
8);
if (ret < GP_OK) {
free (data);
return ret;
}
gp_port_read(port, (char *)&data[current*0x1000], remain);
}
gp_file_append(file, (char *)data, size);
free(data);
ret = gp_port_usb_msg_write (port, CMDID_FINISH_READ, 0, 0, (char *)imagno, 4);
if (ret < GP_OK)
return ret;
return GP_OK;
}
int stv0674_get_image_preview(GPPort *port, int image_no, CameraFile *file)
{
return GP_OK;
}
int stv0674_capture(GPPort *port)
{
return GP_OK;
}
int stv0674_capture_preview(GPPort *port, char **data, int *size)
{
return GP_OK;
}
int stv0674_delete_all(GPPort *port) {
/* return stv0674_try_cmd(port,CMDID_SET_IMAGE_INDEX,0,NULL,0);*/
return GP_OK;
}
int stv0674_summary(GPPort *port, char *txt)
{
return GP_OK;
}
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