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/* dc120.h
*
* Copyright (C) Scott Fritzinger
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/*
Packet Structure
--------------------------------------------------------------
Command Packet: CMD 00 [4 byte field] 00 1A
Camera Response: [variable width field] CHECKSUM
Responses
--------------------------------------------------------------
00 Command completed
10 Command ready
d1 Command received (ACK)
d2 Correct packet
e1 Command incorrect (NAK)
e2 Command execution error
e3 Illegal packet
e4 Cancel
Commands & Byte field descriptions
--------------------------------------------------------------
These are ones relavent to gPhoto
* Album #0 is the root folder (directory/album/etc...)
List albums (folders)
Packet: 44 00 00 00 00 00 00 1A
Response:
ALBUMNAME1\0\0\0\0\0ALBUMNAME2\0\0\0\0\0ALBUMNAME3\0\0\0\0\0 [...] CS
(258 bytes, 15 byte fixed-with fields in multiple packets)
CS (checksum)
Picture count in album
Packet: 45 LOC 00 00 AN 00 00 1A
LOC (location): 00 (memory), 01 (card)
AN (album #)
Response: NP4 NP3 NP2 NP1 [11 reserved bytes] CS
NP4 - NP1 (number of pictures): MSB to LSB number of pictures
CS (checksum)
Set Active album for next taken picture
Packet: 49 00 AN 00 00 00 00 1A
AN (album #)
Set Image Quality
Packet: 71 00 QQ 00 00 00 00 1A
QQ (quality): 00 (no comp), 01 (best), 02 (better), 03 (good)
Take picture
Packet: CMD 00 00 00 00 00 00 1A
CMD:
77 Take a picture to FLASH
7C Take a picture to card
Picture Transfer/Deletion
Packet: CMD AA PU PL AL 00 00 1A
CMD:
4A Send filename in album
51 Send picture in memory
52 Send TIFF info in memory
54 Send TIFF in memory
55 Send picture info in memory
64 Send TIFF on card
76 Copy image from memory to card
7B Erase picture from card
AA (access mode): 00 (sequential), 01 (album)
PU (picture # upper)
PL (picture # lower)
AL (album #)
*/
#define COMM1 (unsigned char)0x00
#define READY (unsigned char)0x10
#define ACK (unsigned char)0xd1
#define PACK1 (unsigned char)0xd2
/* nice. errors all have upper nibble of 'e' */
#define NAK (unsigned char)0xe1
#define COMM0 (unsigned char)0xe2
#define PACK0 (unsigned char)0xe3
#define CANCL (unsigned char)0xe4
#define TIMEOUT 5000
#define SLEEP_TIMEOUT 50
#define RETRIES 5
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