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/**********************************************************************
* Minolta Dimage V digital camera communication library *
* Copyright 2000,2001 Gus Hartmann *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 2 of *
* the License, or (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public *
* License along with this program; if not, write to the *
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
* *
**********************************************************************/
/* $Id$ */
#include "config.h"
#include <stdio.h>
#include "dimagev.h"
#define GP_MODULE "dimagev"
/* This is the parent function, who calls most of the functions below.
It returns GP_ERROR if it cannot get the camera data, and GP_OK otherwise.
The subroutines will print out more detained information should they fail. */
int dimagev_get_camera_info(dimagev_t *dimagev) {
dimagev_packet *p, *raw;
unsigned char char_buffer;
/* Check the device. */
if ( dimagev->dev == NULL ) {
GP_DEBUG( "dimagev_get_camera_info::device not valid");
return GP_ERROR_BAD_PARAMETERS;
}
/* Make sure that the old info struct is fred, and allocate a new one. */
/*
if ( dimagev->info != NULL ) {
free(dimagev->info);
}
*/
/* Let's say hello and get the current status. */
if ( ( p = dimagev_make_packet(DIMAGEV_INQUIRY, 1, 0)) == NULL ) {
GP_DEBUG( "dimagev_get_camera_info::unable to allocate packet");
return GP_ERROR_IO;
}
if ( gp_port_write(dimagev->dev, (char *)p->buffer, p->length) < GP_OK ) {
GP_DEBUG( "dimagev_get_camera_info::unable to write packet");
free(p);
return GP_ERROR_IO;
} else if ( gp_port_read(dimagev->dev, (char *)&char_buffer, 1) < GP_OK ) {
GP_DEBUG( "dimagev_get_camera_info::no response from camera");
free(p);
return GP_ERROR_IO;
}
free(p);
switch ( char_buffer ) {
case DIMAGEV_ACK:
break;
case DIMAGEV_NAK:
/* Keep trying until a CAN is issued. */
GP_DEBUG( "dimagev_get_camera_info::camera did not acknowledge transmission");
return dimagev_get_camera_info(dimagev);
case DIMAGEV_CAN:
GP_DEBUG( "dimagev_get_camera_info::camera cancels transmission");
return GP_ERROR_IO;
default:
GP_DEBUG( "dimagev_get_camera_info::camera responded with unknown value %x", char_buffer);
return GP_ERROR_IO;
}
if ( ( p = dimagev_read_packet(dimagev) ) == NULL ) {
GP_DEBUG( "dimagev_get_camera_info::unable to read packet");
return GP_ERROR_IO;
}
char_buffer = DIMAGEV_EOT;
if ( gp_port_write(dimagev->dev, (char *)&char_buffer, 1) < GP_OK ) {
GP_DEBUG( "dimagev_get_camera_info::unable to send EOT");
free(p);
return GP_ERROR_IO;
}
if ( gp_port_read(dimagev->dev, (char *)&char_buffer, 1) < GP_OK ) {
GP_DEBUG( "dimagev_get_camera_info::no response from camera");
free(p);
return GP_ERROR_IO;
}
switch ( char_buffer ) {
case DIMAGEV_ACK:
break;
case DIMAGEV_NAK:
GP_DEBUG( "dimagev_get_camera_info::camera did not acknowledge transmission");
free(p);
return GP_ERROR_IO;
case DIMAGEV_CAN:
GP_DEBUG( "dimagev_get_camera_info::camera cancels transmission");
free(p);
return GP_ERROR_IO;
default:
GP_DEBUG( "dimagev_get_camera_info::camera responded with unknown value %x", char_buffer);
free(p);
return GP_ERROR_IO;
}
if ( ( raw = dimagev_strip_packet(p) ) == NULL ) {
GP_DEBUG( "dimagev_get_camera_info::unable to strip data packet");
free(p);
return GP_ERROR_NO_MEMORY;
}
if ( ( dimagev->info = dimagev_import_camera_info(raw->buffer) ) == NULL ) {
GP_DEBUG( "dimagev_get_camera_info::unable to read camera info");
free(p);
free(raw);
return GP_ERROR;
}
/* Sure it *should* get fred automagically, but why take the risk? */
free(p);
free(raw);
return GP_OK;
}
dimagev_info_t *dimagev_import_camera_info(unsigned char *raw_data) {
dimagev_info_t *info;
if ( ( info = malloc(sizeof(dimagev_info_t)) ) == NULL ) {
perror("dimagev_import_camera_info::unable to allocate dimagev_info_t");
return NULL;
}
memcpy(info->vendor, &(raw_data[0]), 8);
info->vendor[7]= (unsigned char) 0;
memcpy(info->model, &(raw_data[8]), 8);
info->model[7]= (unsigned char) 0;
memcpy(info->hardware_rev, &(raw_data[16]), 4);
info->hardware_rev[3]= (unsigned char) 0;
memcpy(info->firmware_rev, &(raw_data[20]), 4);
info->firmware_rev[3]= (unsigned char) 0;
info->have_storage = raw_data[24];
return info;
}
void dimagev_dump_camera_info(dimagev_info_t *info) {
if ( info == NULL ) {
GP_DEBUG( "dimagev_dump_camera_info::unable to read NULL simagev_info_t");
return;
}
GP_DEBUG( "========= Begin Camera Info =========");
GP_DEBUG( "Vendor: %s", info->vendor);
GP_DEBUG( "Model: %s", info->model);
GP_DEBUG( "Hardware Revision: %s", info->hardware_rev);
GP_DEBUG( "Firmware Revision: %s", info->firmware_rev);
GP_DEBUG( "========== End Camera Info ==========");
return;
}
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