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/* jl2005a.c
*
* Copyright (C) 2006 Theodore Kilgore <kilgota@auburn.edu>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <math.h>
#include <gphoto2/gphoto2.h>
#include <gphoto2/gphoto2-port.h>
#include "gphoto2-endian.h"
#include "jl2005a.h"
#define GP_MODULE "jl2005a"
int
jl2005a_init (Camera *camera, GPPort *port, CameraPrivateLibrary *priv)
{
GP_DEBUG("Running jl2005a_init\n");
jl2005a_shortquery(port, 0x0d); /* Supposed to get 0x08 */
jl2005a_shortquery(port, 0x1c); /* Supposed to get 0x01 */
jl2005a_shortquery(port, 0x20); /* Supposed to get 0x04 */
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa1\x02", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa2\x02", 2);
jl2005a_shortquery(port, 0x1d); /* 1 if camera is full, else 0 */
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa1\x00", 2);
priv->nb_entries = jl2005a_shortquery(port, 0x0a)&0xff;
/* Number of pix returned here */
GP_DEBUG("%d entries in the camera\n", priv->nb_entries);
return jl2005a_shortquery(port, 0x1d); /* Should get 0, same as GP_OK */
}
int
jl2005a_get_pic_data_size (GPPort *port, int n)
{
unsigned int size = 0;
char command[2] = {0xa1, (char)(n&0xff)};
char response=0;
GP_DEBUG("Getting photo data size\n");
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, command, 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa2\x0b", 2);
jl2005a_shortquery(port, 0x1d);
size = response&0xff;
GP_DEBUG("size = 0x%x\n", size);
response = (jl2005a_read_info_byte(port, 1) )&0xff;
size = ((response&0xff) << 8)| size;
GP_DEBUG("size = 0x%x\n", size);
response = (jl2005a_read_info_byte(port, 2 ))&0xff;
size = ((response&0xff)<<16)|size;
GP_DEBUG("size = 0x%x\n", size);
return (size);
}
int
jl2005a_get_pic_width (GPPort *port)
{
int width;
char response;
response = (jl2005a_read_info_byte(port, 3))&0xff;
width = (response&0xff);
response = (jl2005a_read_info_byte(port, 4) )&0xff;
width = ((response&0xff) << 8)|width;
return (width);
}
int
jl2005a_get_pic_height (GPPort *port)
{
int height;
char response;
response = (jl2005a_read_info_byte(port, 5) )&0xff;
height = (response&0xff);
response = (jl2005a_read_info_byte(port, 6) )&0xff;
height = ((response&0xff)<< 8)|height;
return (height);
}
int
set_usb_in_endpoint (Camera *camera, int inep)
{
GPPortSettings settings;
gp_port_get_settings ( camera ->port, &settings);
settings.usb.inep = inep;
GP_DEBUG("inep reset to %02X\n", inep);
return gp_port_set_settings ( camera ->port, settings);
}
int
jl2005a_read_picture_data (Camera *camera, GPPort *port,
unsigned char *data, unsigned int size)
{
char response;
int maxdl = 0xfa00;
response = (jl2005a_read_info_byte(port, 7) )&0xff;
/* Always 0x80. Purpose unknown */
response = (jl2005a_read_info_byte(port, 0xa0) )&0xff;
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa1\x04", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa2\x08", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa1\x05", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa2\x08", 2);
/* Switch the inep over to 0x81. */
set_usb_in_endpoint (camera, 0x81);
while (size > maxdl) {
gp_port_read(port, (char *)data, maxdl);
data += maxdl;
size -= maxdl;
}
gp_port_read(port, (char *)data, size);
/* Switch the inep back to 0x84. */
set_usb_in_endpoint (camera, 0x84);
return GP_OK;
}
int
jl2005a_reset (Camera *camera, GPPort *port)
{
int i;
gp_port_write (port,"\xab\x00" , 2);
gp_port_write (port, "\xa1\x00", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa2\x02", 2);
for (i=0; i < 4; i++)
jl2005a_shortquery(port, 0x1d);
/* Supposed to get something like 0x01, 0x01, 0x01, 0x00 */
return GP_OK;
}
int jl2005a_read_info_byte(GPPort *port, int n)
{
char response;
char command[2] = {0xa1, (char)(n&0xff)};
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, command , 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa2\x0c", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa3\xa1", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_read (port,&response, 1);
return response&0xff;
}
int jl2005a_shortquery(GPPort *port, int n)
{
char response;
char command[2] = {0xa2, (char)(n&0xff)};
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, command, 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xa3\xa1", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_write (port, "\xab\x00", 2);
gp_port_read (port, &response, 1);
return response&0xff;
}
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