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/*
* commands.c
*
* Command set for the soundvision cameras
*
* Copyright 2001-2003 Vince Weaver <vince@deater.net>
*/
#include "config.h"
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>
#ifdef OS2
#include <db.h>
#endif
#include <gphoto2/gphoto2.h>
#include "gphoto2-endian.h"
#include "soundvision.h"
#include "commands.h"
#define GP_MODULE "soundvision"
/* Regular commands always 8 bytes long */
int32_t soundvision_send_command(uint32_t command, uint32_t argument,
CameraPrivateLibrary *dev) {
uint8_t cmd[12];
int result;
htole32a(&cmd[0],8); /* Length "8" in little-endian 32bits */
htole32a(&cmd[4],command); /* Command is a little-endian 32bits */
htole32a(&cmd[8],argument); /* Argument is a little-endian 32bits */
result=gp_port_write(dev->gpdev,(char *)&cmd,sizeof(cmd));
if (result<0) return result;
return GP_OK;
}
/* Filenames are always 12 bytes long */
int32_t soundvision_send_file_command(const char *filename,
CameraPrivateLibrary *dev) {
uint8_t file_cmd[16];
int result;
htole32a(&file_cmd[0],0xc); /* Length is 12 little-endian 32 bits */
strncpy(&file_cmd[4],filename,12); /* Filename is 12 bytes at the end */
result=gp_port_write(dev->gpdev,(char *)&file_cmd,sizeof(file_cmd));
if (result<0) return result;
return GP_OK;
}
/* USB-only */
int32_t soundvision_read(CameraPrivateLibrary *dev, void *buffer, int len) {
return gp_port_read(dev->gpdev, buffer, len);
}
/* Reset the camera */
int soundvision_reset(CameraPrivateLibrary *dev,char *revision, char *status) {
int ret,attempts=0;
retry_reset:
/* This prevents lockups on tiger !!!! */
ret=soundvision_send_command(SOUNDVISION_START_TRANSACTION,0,dev);
if (ret<0) goto reset_error;
/* First get firmware revision */
ret=soundvision_get_revision(dev,revision);
/* If camera out of whack, this is where it will hang */
/* If we retry a few times usually after a few timeouts */
/* It will get going again */
if (ret<0) {
if (attempts<2) {
attempts++;
goto retry_reset;
}
else goto reset_error;
}
/* Dshot 3 camera does 2 extra steps */
/* Seems to enable extra info in status */
/* What does it do? It works w/o it */
/* And other tiger cameras might not */
/* need it. */
#if 0
if (dev->device_type==SOUNDVISION_TIGERFASTFLICKS) {
char result[12];
/* What does 0x405 signify? */
ret=soundvision_send_command(SOUNDVISION_SETPC2,0x405,dev);
if (ret<0) goto reset_error;
ret=soundvision_send_command(SOUNDVISION_INIT2,0,dev);
if (ret<0) goto reset_error;
/* Read returned value. Why 0x140,0xf,0x5 ? */
ret = soundvision_read(dev, &result, sizeof(result));
if (ret<0) goto reset_error;
}
#endif
/* Read the status registers */
dev->reset_times++;
if (dev->device_type!=SOUNDVISION_IXLA) {
ret=soundvision_get_status(dev,status);
if (ret<0) goto reset_error;
}
return GP_OK;
reset_error:
GP_DEBUG("Error in soundvision_reset\n");
return ret;
}
int soundvision_get_revision(CameraPrivateLibrary *dev, char *revision) {
int ret;
char version[9];
ret = soundvision_send_command(SOUNDVISION_GET_VERSION,0,dev);
if (ret<0) return ret;
ret = soundvision_read(dev, &version, sizeof(version)-1);
if (ret<0) return ret;
/* If null we don't care */
if (revision!=NULL) {
strncpy(revision,version,8);
revision[8]=0;
}
return GP_OK;
}
/* Status is a 96 byte array. */
/* Haven't been able to decode it yet */
/* It changes with every read though */
int soundvision_get_status(CameraPrivateLibrary *dev, char *status) {
uint8_t ss[0x60];
int32_t ret;
ret=soundvision_send_command(SOUNDVISION_STATUS, 0, dev);
if (ret < 0) goto get_status_error;
ret = soundvision_read(dev, (unsigned char *)&ss, sizeof(ss));
if (ret < 0) goto get_status_error;
if (status!=NULL) {
memcpy(status,ss,0x60);
}
return GP_OK;
get_status_error:
GP_DEBUG("Error getting camera status\n");
return ret;
}
int soundvision_photos_taken(CameraPrivateLibrary *dev) {
int32_t ret;
uint32_t numpics;
ret=soundvision_send_command(SOUNDVISION_GET_NUM_PICS, 0, dev);
if (ret < 0) goto error_photos_taken;
ret = soundvision_read(dev, &numpics, sizeof(numpics));
if (ret < 0) goto error_photos_taken;
return le32toh(numpics);
error_photos_taken:
GP_DEBUG("Error getting number of photos taken.\n");
return ret;
}
int soundvision_get_file_list(CameraPrivateLibrary *dev) {
int result;
if (dev->device_type==SOUNDVISION_TIGERFASTFLICKS) {
result=tiger_get_file_list(dev);
}
else {
result=agfa_get_file_list(dev);
}
return result;
}
int soundvision_get_thumb_size(CameraPrivateLibrary *dev, const char *filename) {
int32_t ret;
if (dev->device_type==SOUNDVISION_TIGERFASTFLICKS)
ret=tiger_get_thumb_size(dev,filename);
else
ret=agfa_get_thumb_size(dev,filename);
return ret;
}
int soundvision_get_thumb(CameraPrivateLibrary *dev, const char *filename,
unsigned char *data,int size) {
int32_t ret;
if (dev->device_type==SOUNDVISION_TIGERFASTFLICKS)
ret=tiger_get_thumb(dev,filename,data,size);
else
ret=agfa_get_thumb(dev,filename,data,size);
return ret;
}
int soundvision_get_pic_size(CameraPrivateLibrary *dev, const char *filename) {
int32_t ret;
if (dev->device_type==SOUNDVISION_TIGERFASTFLICKS)
ret=tiger_get_pic_size(dev,filename);
else
ret=agfa_get_pic_size(dev,filename);
return ret;
}
int soundvision_get_pic(CameraPrivateLibrary *dev, const char *filename,
unsigned char *data,int size) {
int32_t ret;
if (dev->device_type==SOUNDVISION_TIGERFASTFLICKS)
ret=tiger_get_pic(dev,filename,data,size);
else
ret=agfa_get_pic(dev,filename,data,size);
return ret;
}
int soundvision_delete_picture(CameraPrivateLibrary *dev, const char *filename) {
int result;
if (dev->device_type==SOUNDVISION_TIGERFASTFLICKS)
result=tiger_delete_picture(dev,filename);
else
result=agfa_delete_picture(dev,filename);
return result;
}
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