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/****************************************************************/
/* pccam600.c - Gphoto2 library for the Creative PC-CAM600 */
/* */
/* */
/* Author: Peter Kajberg <pbk@odense.kollegienet.dk> */
/* */
/* This library is free software; you can redistribute it */
/* and/or modify it under the terms of the GNU Library 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 Library General Public License for */
/* more details. */
/* */
/* Please notice that camera commands was sniffed by use of a */
/* usbsniffer under windows. This is an experimental driver and */
/* a work in progess(I hope :)) */
/* */
/* You should have received a copy of the GNU Library 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 <string.h>
#include "pccam600.h"
#include <gphoto2/gphoto2.h>
#include <gphoto2/gphoto2-port.h>
#include <gphoto2/gphoto2-port-log.h>
#define GP_MODULE "pccam600"
#ifdef ENABLE_NLS
# include <libintl.h>
# undef _
# define _(String) dgettext (GETTEXT_PACKAGE, String)
# ifdef gettext_noop
# define N_(String) gettext_noop (String)
# else
# define N_(String) (String)
# endif
#else
# define _(String) (String)
# define N_(String) (String)
#endif
/*
*waits until the status value is 0 or 8.
*if status == 0xb0 or 0x40 we will wait some more
*/
static int pccam600_wait_for_status(GPPort *port){
unsigned char status = 1;
while(status != 0x00){
gp_port_set_timeout(port,3000);
CHECK(gp_port_usb_msg_read(port,0x06,0x00,0x00,(char*)&status,1));
if (status == 0 || status == 8)
return GP_OK;
if (status == 0xb0){
gp_port_set_timeout(port,200000);
CHECK(gp_port_usb_msg_read(port,0x06,0x00,0x00,(char*)&status,1));
}
if (status == 0x40){
gp_port_set_timeout(port,400000);
CHECK(gp_port_usb_msg_read(port,0x06,0x00,0x00,(char*)&status,1));
}
}
return GP_ERROR;
}
/*
*Deletes a file. The first file has index = 2.
*/
int pccam600_delete_file(GPPort *port, GPContext *context, int index){
unsigned char response[4];
index = index + 2;
gp_port_set_timeout(port,200000);
CHECK(gp_port_usb_msg_write(port,0x09,index,0x1001,NULL,0x00));
CHECK(pccam600_wait_for_status(port));
gp_port_set_timeout(port, 400000);
CHECK(gp_port_usb_msg_read(port,0x60,0x00,0x03,(char*)response,0x04));
CHECK(pccam600_wait_for_status(port));
CHECK(gp_port_usb_msg_read(port,0x60,0x00,0x04,(char*)response,0x04));
CHECK(pccam600_wait_for_status(port));
return GP_OK;
}
int pccam600_get_mem_info(GPPort *port, GPContext *context, int *totalmem,
int *freemem)
{
unsigned char response[4];
gp_port_set_timeout(port, 400000);
CHECK(gp_port_usb_msg_read(port,0x60,0x00,0x03,(char*)response,0x04));
*totalmem = response[2]*65536+response[1]*256+response[0];
CHECK(pccam600_wait_for_status(port));
CHECK(gp_port_usb_msg_read(port,0x60,0x00,0x04,(char*)response,0x04));
*freemem = response[2]*65536+response[1]*256+response[0];
CHECK(pccam600_wait_for_status(port));
return GP_OK;
}
/*
*
*/
int pccam600_get_file_list(GPPort *port, GPContext *context){
unsigned char response[4];
int nr_of_blocks;
gp_port_set_timeout(port,500);
CHECK(gp_port_usb_msg_write(port,0x08,0x00,0x1021,NULL,0x00));
CHECK(pccam600_wait_for_status(port));
gp_port_set_timeout(port, 200000);
CHECK(gp_port_usb_msg_write(port,0x08,0x00,0x1021,NULL,0x00));
CHECK(pccam600_wait_for_status(port));
CHECK(gp_port_usb_msg_read(port,0x08,0x00,0x1000,(char*)response,0x04));
nr_of_blocks = response[2]*256+response[1];
if (nr_of_blocks == 0){
gp_log(GP_LOG_DEBUG,"pccam600 library: pccam600_get_file_list",
"nr_of_blocks is 0");
gp_context_error(context,_("pccam600_init: Expected > %d blocks got %d"),
0,nr_of_blocks);
return GP_ERROR;
}
return nr_of_blocks / 2;
}
int pccam600_get_file(GPPort *port, GPContext *context, int index){
unsigned char response[4];
int nr_of_blocks;
index = index + 2;
if (index < 2) {
gp_context_error(context,
_("pccam600_get_file:got index %d but expected index > %d"),
index,2);
return GP_ERROR;
}
gp_port_set_timeout(port,200000);
CHECK(gp_port_usb_msg_read(port,0x08,index,0x1001,(char*)response,0x04));
gp_port_set_timeout(port,3000);
CHECK(gp_port_usb_msg_write(port,0x04,0x00,0x00,NULL,0x00));
CHECK(pccam600_wait_for_status(port));
gp_port_set_timeout(port,200000);
CHECK(gp_port_usb_msg_read(port,0x08,index,0x1002,(char*)response,0x04));
CHECK(gp_port_usb_msg_read(port,0x08,index,0x1001,(char*)response,0x04));
nr_of_blocks = response[2]*256+response[1];
if (nr_of_blocks == 0){
gp_log(GP_LOG_DEBUG,
"pccam600 library: pccam600_get_file","nr_of_msg is 0");
gp_context_error(context,_("pccam600_init: Expected > %d blocks got %d"),
0,nr_of_blocks);
return GP_ERROR;
}
return nr_of_blocks / 2;
}
/*
*Reads bulk data from the camera in 512bytes chunks.
*/
int pccam600_read_data(GPPort *port, unsigned char *buffer){
gp_port_set_timeout(port,500);
CHECK(gp_port_read(port,(char*)buffer,512));
return GP_OK;
}
/*
*
*/
int pccam600_close(GPPort *port, GPContext *context){
int ret;
gp_port_set_timeout(port,500);
ret = gp_port_usb_msg_write(port,0x08,0x00,0xf0,NULL,0x00);
if (ret < 0) {
gp_context_error(context,
_("pccam600_close: return value was %d instead of %d"),
ret,0);
return GP_ERROR;
}
CHECK(pccam600_wait_for_status(port));
return GP_OK;
}
/*
*Sets up the camera and then read 32 512bytes blocks.
*Why it is read those 32 blocks I dont know. Just
*doing what the windows driver does :).
*/
int pccam600_init(GPPort *port, GPContext *context){
unsigned char response[4];
unsigned char buffer[512];
int nr_of_blocks;
int ret,i;
gp_port_set_timeout(port,100);
CHECK(gp_port_usb_msg_write(port,0x0e,0x00,0x01,NULL,0x0));
CHECK(gp_port_usb_msg_write(port,0x08,0x00,0xff,NULL,0x0));
CHECK(pccam600_wait_for_status(port));
gp_port_set_timeout(port,100000);
CHECK(gp_port_usb_msg_read(port,0x08,0x00,0xff,(char*)response,0x1));
gp_port_set_timeout(port,500);
CHECK(gp_port_usb_msg_write(port,0x08,0x00,0x1020,NULL,0x0));
CHECK(pccam600_wait_for_status(port));
gp_port_set_timeout(port,200000);
CHECK(gp_port_usb_msg_read(port,0x08,0x00,0x1000,(char*)response,0x4));
nr_of_blocks = response[2]*256+response[1];
if (nr_of_blocks == 0) {
gp_context_error(context,_("pccam600_init: Expected %d blocks got %d"),64,nr_of_blocks);
return GP_ERROR;
}
nr_of_blocks = 512 / nr_of_blocks;
gp_log(GP_LOG_DEBUG,"pccam600 library: init","nr_of_blocks %d",nr_of_blocks);
if (nr_of_blocks == 0) {
gp_context_error(context,_("pccam600_init: Expected %d blocks got %d"),64,nr_of_blocks);
return GP_ERROR;
}
gp_port_set_timeout(port,500);
for (i = 0; i<nr_of_blocks; i++){
ret = gp_port_read(port, (char*)buffer,512);
if (ret < 0){
gp_log(GP_LOG_DEBUG,
"pccam600 library: init"," gp_port_read returned %d:",
ret);
gp_context_error(context,_("pccam600 init:"
" Unexpected error: gp_port_read returned %d instead of %d"),
ret,0);
return GP_ERROR;
}
}
return GP_OK;
}
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