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/*
* SANE backend for Xerox Phaser 3200MFP et al.
* Copyright 2008-2016 ABC <abc@telekom.ru>
*
* Network Scanners Support
* Copyright 2010 Alexander Kuznetsov <acca(at)cpan.org>
*
* Color scanning on Samsung M2870 model and Xerox Cognac 3215 & 3225
* models by Laxmeesh Onkar Markod <m.laxmeesh@samsung.com>
*
* This program is licensed under GPL + SANE exception.
* More info at http://www.sane-project.org/license.html
*/
#ifndef xerox_mfp_h
#define xerox_mfp_h
#ifdef __GNUC__
#define UNUSED(x) x __attribute__((unused))
#else
#define UNUSED(x) x
#endif
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define UNCONST(ptr) ((void *)(long)(ptr))
#define PNT_PER_MM (1200. / MM_PER_INCH)
#define PADDING_SIZE 16
#define SWAP_Word(x, y) { SANE_Word z = x; x = y; y = z; }
enum options {
OPT_NUMOPTIONS,
OPT_GROUP_STD,
OPT_RESOLUTION, /* dpi*/
OPT_MODE, /* color */
OPT_THRESHOLD, /* brightness */
OPT_SOURCE, /* affects max window size */
OPT_JPEG,
OPT_GROUP_GEO,
OPT_SCAN_TL_X, /* for (OPT_SCAN_TL_X to OPT_SCAN_BR_Y) */
OPT_SCAN_TL_Y,
OPT_SCAN_BR_X,
OPT_SCAN_BR_Y,
NUM_OPTIONS
};
typedef struct transport transport;
struct device {
struct device *next;
SANE_Device sane;
int dn; /* usb file descriptor */
SANE_Byte res[1024]; /* buffer for responses */
size_t reslen; /* response len */
SANE_Option_Descriptor opt[NUM_OPTIONS];
Option_Value val[NUM_OPTIONS];
SANE_Parameters para;
SANE_Bool non_blocking;
int scanning; /* scanning is started */
int cancel; /* cancel flag */
int state; /* current state */
int reserved; /* CMD_RESERVE_UNIT */
int reading; /* READ_IMAGE is sent */
SANE_Byte *data; /* postprocessing cyclic buffer 64k */
int datalen; /* how data in buffer */
int dataoff; /* offset of data */
int dataindex; /* sequental number */
#define DATAMASK 0xffff /* mask of data buffer */
#define DATASIZE (DATAMASK + 1) /* size of data buffer */
/* 64K will be enough to hold whole line of 2400 dpi of 23cm */
#define DATATAIL(dev) ((dev->dataoff + dev->datalen) & DATAMASK)
#define DATAROOM(dev) dataroom(dev)
#define POST_DATASIZE 0xFFFFFF /* 16777215 bytes */
SANE_Byte *decData; /* static buffer of POST_DATASIZE bytes */
int decDataSize;
int currentDecDataIndex;
/* data from CMD_INQUIRY: */
int resolutions; /* supported resolution bitmask */
int compositions; /* supported image compositions bitmask */
int max_len; /* effective max len for current doc source */
int max_win_width;
int max_win_len;
int max_len_adf;
int max_len_fb;
int line_order; /* if need post processing */
SANE_Word dpi_list[30]; /* allowed resolutions */
int doc_loaded;
SANE_Range win_x_range;
SANE_Range win_y_range;
/* CMD_SET_WINDOW parameters we set: */
int win_width; /* in 1200dpi points */
int win_len;
double win_off_x; /* in inches (byte.byte) */
double win_off_y;
int resolution; /* dpi indexed values */
int composition; /* MODE_ */
int doc_source; /* document source */
int threshold; /* brightness */
int compressionTypes;
SANE_Bool compressionEnabled;
/* CMD_READ data. It is per block only, image could be in many blocks */
int blocklen; /* image data block len (padding incl.) */
int vertical; /* lines in block (padded) */
int horizontal; /* b/w: bytes, gray/color: pixels (padded) */
int final_block;
int pixels_per_line;
int bytes_per_line;
int ulines; /* up to this block including */
int y_off; /* up to this block excluding*/
int blocks;
/* stat */
int total_img_size; /* predicted image size */
int total_out_size; /* total we sent to user */
int total_data_size; /* total of what scanner sent us */
/* transport to use */
transport *io;
};
/* Transport abstract layer */
struct transport {
char *ttype;
int (*dev_request)(struct device *dev,
SANE_Byte *cmd, size_t cmdlen,
SANE_Byte *resp, size_t *resplen);
SANE_Status(*dev_open)(struct device *dev);
void (*dev_close)(struct device *dev);
SANE_Status(*configure_device)(const char *devname, SANE_Status(*cb)(SANE_String_Const devname));
};
/* USB transport */
int usb_dev_request(struct device *dev, SANE_Byte *cmd, size_t cmdlen, SANE_Byte *resp, size_t *resplen);
SANE_Status usb_dev_open(struct device *dev);
void usb_dev_close(struct device *dev);
SANE_Status usb_configure_device(const char *devname, SANE_Status(*cb)(SANE_String_Const devname));
/* TCP unicast */
int tcp_dev_request(struct device *dev, SANE_Byte *cmd, size_t cmdlen, SANE_Byte *resp, size_t *resplen);
SANE_Status tcp_dev_open(struct device *dev);
void tcp_dev_close(struct device *dev);
SANE_Status tcp_configure_device(const char *devname, SANE_Status(*cb)(SANE_String_Const devname));
/* device wants transfer buffer to be multiple of 512 */
#define USB_BLOCK_SIZE 512
#define USB_BLOCK_MASK ~(USB_BLOCK_SIZE - 1)
static inline int dataroom(struct device *dev)
{
int tail = DATATAIL(dev);
if (tail < dev->dataoff)
return dev->dataoff - tail;
else if (dev->datalen == DATASIZE) {
return 0;
} else
return DATASIZE - tail;
}
/* Functions from original xerox_mfp.c, used in -usb.c and -tcp.c */
SANE_Status ret_cancel(struct device *dev, SANE_Status ret);
/* a la SCSI commands. */ /* request len, response len, exception */
#define CMD_ABORT 0x06 /* 4, 32 */
#define CMD_INQUIRY 0x12 /* 4, 70 */
#define CMD_RESERVE_UNIT 0x16 /* 4, 32 */
#define CMD_RELEASE_UNIT 0x17 /* 4, 32 */
#define CMD_SET_WINDOW 0x24 /* 25, 32, specified req len is 22 */
#define CMD_READ 0x28 /* 4, 32 */
#define CMD_READ_IMAGE 0x29 /* 4, var + padding[16] */
#define CMD_OBJECT_POSITION 0x31 /* 4, 32 */
/* Packet Headers */
#define REQ_CODE_A 0x1b
#define REQ_CODE_B 0xa8
#define RES_CODE 0xa8
/* Status Codes, going into dev->state */
#define STATUS_GOOD 0x00
#define STATUS_CHECK 0x02 /* MSG_SCANNER_STATE */
#define STATUS_CANCEL 0x04
#define STATUS_BUSY 0x08
/* Message Code */
#define MSG_NO_MESSAGE 0x00
#define MSG_PRODUCT_INFO 0x10 /* CMD_INQUIRY */
#define MSG_SCANNER_STATE 0x20 /* CMD_RESERVE_UNIT, and
CMD_READ, CMD_SET_WINDOW, CMD_OBJECT_POSITION */
#define MSG_SCANNING_PARAM 0x30 /* CMD_SET_WINDOW */
#define MSG_PREVIEW_PARAM 0x31 /* CMD_SET_WINDOW */
#define MSG_LINK_BLOCK 0x80 /* CMD_READ */
#define MSG_END_BLOCK 0x81 /* CMD_READ */
/* Scanner State Bits (if MSG_SCANNER_STATE if STATUS_CHECK) */
#define STATE_NO_ERROR 0x001
#define STATE_COMMAND_ERROR 0x002
#define STATE_UNSUPPORTED 0x004
#define STATE_RESET 0x008
#define STATE_NO_DOCUMENT 0x010
#define STATE_DOCUMENT_JAM 0x020
#define STATE_COVER_OPEN 0x040
#define STATE_WARMING 0x080
#define STATE_LOCKING 0x100
#define STATE_INVALID_AREA 0x200
#define STATE_RESOURCE_BUSY 0x400
/* Image Composition */
#define MODE_LINEART 0x00
#define MODE_HALFTONE 0x01
#define MODE_GRAY8 0x03
#define MODE_RGB24 0x05
/* Document Source */
#define DOC_ADF 0x20
#define DOC_FLATBED 0x40
#define DOC_AUTO 0x80
#endif /* xerox_mfp_h */
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