/* 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;
}
unsigned char *canon_fill_payload(int length, int word1, int word2, int word3,
int word4)
{
unsigned char *buffer;
buffer = (unsigned char *)calloc(length, 1);
htole32a(buffer, word1);
if(length >= 8)
htole32a(buffer + 4, word2);
if(length >= 12)
htole32a(buffer + 8, word3);
if(length >= 16)
htole32a(buffer + 12, word4);
return buffer;
}
/* Filenames are always 12 bytes long */
int32_t soundvision_send_file_command(const char *filename,
CameraPrivateLibrary *dev) {
char file_cmd[16];
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 */
return gp_port_write (dev->gpdev, file_cmd, sizeof(file_cmd));
}
unsigned char *canon_fill_command(int length, int cmd1, unsigned char cmd2,
unsigned char cmd3, unsigned char *payload,
int payload_length)
{
unsigned char *buffer;
buffer = (unsigned char *)calloc(length, 1);
memset(buffer, 0, length);
htole32a(buffer, 0x10 + payload_length);
htole32a(buffer + 0x04, cmd1);
buffer[0x40] = 2;
buffer[0x44] = cmd2;
buffer[0x47] = cmd3;
htole32a(buffer + 0x48, 0x10 + payload_length);
htole32a(buffer + 0x4c, 0x12345678);
if(payload != NULL)
memcpy(buffer + 0x50, payload, payload_length);
return buffer;
}
/* Yet uploaded file never appears. Why?? */
int tiger_upload_file(CameraPrivateLibrary *dev,
const char *filename,
const char *data,
long size) {
int result=0;
char return_value[4];
uint32_t our_size;
char *our_data=NULL;
/* When we upload, the first 3 bytes are little-endian */
/* File-size followed by the actual file */
our_size=size+4;
our_data=calloc(our_size,sizeof(char));
if (our_data==NULL) {
goto upload_error;
}
htole32a(&our_data[0],size);
memcpy(our_data+4,data,size);
GP_DEBUG("File: %s Size=%ld\n",filename,size);
/* for(result=0;result<our_size;result++) {
printf("%x ",our_data[result]);
}
*/
result=tiger_set_pc_mode(dev);
if (result<0) goto upload_error;
result=soundvision_get_revision(dev,NULL);
if (result<0) goto upload_error;
result=soundvision_send_command(SOUNDVISION_GET_MEM_FREE,0,dev);
if (result<0) goto upload_error;
result=soundvision_read(dev, &return_value, sizeof(return_value));
if (result<0) goto upload_error;
result=soundvision_send_command(SOUNDVISION_PUT_FILE,size,dev);
if (result<0) goto upload_error;
result=soundvision_read(dev, &return_value, sizeof(return_value));
if (result<0) goto upload_error;
result=gp_port_write(dev->gpdev,our_data,our_size);
if (result<0) goto upload_error;
free(our_data);
our_data=NULL;
#if 0
/* Some traces show the following, though most likely */
/* this is just the windows driver updating the file list */
result=soundvision_photos_taken(dev);
result=soundvision_get_file_list(dev);
result=soundvision_send_command(SOUNDVISION_GET_PIC_SIZE,0,dev);
if (result<0) goto upload_error;
result=soundvision_read(dev, &return_value, sizeof(return_value));
if (result<0) goto upload_error;
result=soundvision_send_file_command("000VINCE.JPG",dev);
result=soundvision_read(dev, &return_value, sizeof(return_value));
if (result<0) goto upload_error;
result=soundvision_send_command(SOUNDVISION_DONE_TRANSACTION,0,dev);
if (result<0) goto upload_error;
#endif
return GP_OK;
upload_error:
if (our_data!=NULL) free(our_data);
GP_DEBUG("Error in tiger_upload_file");
return result;
}