kopia lustrzana https://gitlab.com/sane-project/backends
xerox_mfp backend base files
Alex Belkin
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b9807541c7
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61f85eeea7
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/*
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* SANE backend for Xerox Phaser 3200MFP
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* Copyright 2008 ABC <abc@telekom.ru>
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*
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* This program is licensed under GPL + SANE exception.
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* More info at http://www.sane-project.org/license.html
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*/
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#ifdef __GNUC__
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#define UNUSED(x) x __attribute__((unused))
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#else
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#define UNUSED(x) x
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#endif
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#define MIN(a,b) (((a) < (b)) ? (a) : (b))
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#define UNCONST(ptr) ((void *)(long)(ptr))
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#define MM_PER_INCH 25.4
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#define PNT_PER_MM (1200. / MM_PER_INCH)
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#define PADDING_SIZE 16
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enum options {
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OPT_NUMOPTIONS,
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OPT_GROUP_STD,
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OPT_RESOLUTION, /* dpi*/
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OPT_MODE, /* color */
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OPT_THRESHOLD, /* brightness */
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OPT_SOURCE, /* affects max window size */
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OPT_GROUP_GEO,
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OPT_SCAN_TL_X, /* for (OPT_SCAN_TL_X to OPT_SCAN_BR_Y) */
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OPT_SCAN_TL_Y,
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OPT_SCAN_BR_X,
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OPT_SCAN_BR_Y,
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NUM_OPTIONS
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};
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struct device {
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struct device *next;
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SANE_Device sane;
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int dn; /* usb file descriptor */
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SANE_Byte res[1024]; /* buffer for responses */
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size_t reslen; /* response len */
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SANE_Option_Descriptor opt[NUM_OPTIONS];
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Option_Value val[NUM_OPTIONS];
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int opt_reload;
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SANE_Bool non_blocking;
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SANE_Parameters para;
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int scanning; /* scanning is started */
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int cancel; /* cancel flag */
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int state; /* current state */
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int reserved; /* CMD_RESERVE_UNIT */
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int reading; /* READ_IMAGE is sent */
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SANE_Byte *data; /* postprocessing cyclic buffer 64k */
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int datalen; /* how data in buffer */
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int dataoff; /* offset of data */
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int dataindex; /* sequental number */
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#define DATAMASK 0xffff /* mask of data buffer */
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#define DATASIZE (DATAMASK + 1) /* size of data buffer */
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/* 64K will be enough to hold whole line of 2400 dpi of 23cm */
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#define DATATAIL(dev) ((dev->dataoff + dev->datalen) & DATAMASK)
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#define DATAROOM(dev) dataroom(dev)
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/* data from CMD_INQUIRY: */
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int resolutions; /* supported resolution bitmask */
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int compositions; /* supported image compositions bitmask */
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int max_len; /* effective max len for current doc source */
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int max_win_width;
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int max_win_len;
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int max_len_adf;
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int max_len_fb;
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int line_order; /* if need post processing */
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SANE_Word dpi_list[30]; /* allowed resolutions */
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int doc_loaded;
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SANE_Range win_x_range;
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SANE_Range win_y_range;
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/* CMD_SET_WINDOW parameters we set: */
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int win_width; /* in 1200dpi points */
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int win_len;
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double win_off_x; /* in inches (byte.byte) */
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double win_off_y;
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int resolution; /* dpi indexed values */
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int composition; /* MODE_ */
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int doc_source; /* document source */
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int threshold; /* brightness */
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/* CMD_READ data. It is per block only, image could be in many blocks */
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int blocklen; /* image data block len (padding incl.) */
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int vertical; /* lines in block (padded) */
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int horizontal; /* b/w: bytes, gray/color: pixels (padded) */
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int final_block;
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int pixels_per_line;
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int bytes_per_line;
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int ulines; /* up to this block including */
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int y_off; /* up to this block excluding*/
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int blocks;
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/* stat */
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int total_img_size; /* predicted image size */
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int total_out_size; /* total we sent to user */
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int total_data_size; /* total of what scanner sent us */
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};
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/* device wants transfer buffer to be multiple of 512 */
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#define USB_BLOCK_SIZE 512
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#define USB_BLOCK_MASK ~(USB_BLOCK_SIZE - 1)
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static inline int dataroom(struct device *dev) {
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int tail = DATATAIL(dev);
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if (tail < dev->dataoff)
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return dev->dataoff - tail;
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else if (dev->datalen == DATASIZE) {
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return 0;
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} else
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return DATASIZE - tail;
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}
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/* a la SCSI commands. */ /* request len, response len, exception */
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#define CMD_ABORT 0x06 /* 4, 32 */
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#define CMD_INQUIRY 0x12 /* 4, 70 */
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#define CMD_RESERVE_UNIT 0x16 /* 4, 32 */
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#define CMD_RELEASE_UNIT 0x17 /* 4, 32 */
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#define CMD_SET_WINDOW 0x24 /* 25, 32, specified req len is 22 */
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#define CMD_READ 0x28 /* 4, 32 */
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#define CMD_READ_IMAGE 0x29 /* 4, var + padding[16] */
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#define CMD_OBJECT_POSITION 0x31 /* 4, 32 */
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/* Packet Headers */
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#define REQ_CODE_A 0x1b
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#define REQ_CODE_B 0xa8
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#define RES_CODE 0xa8
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/* Status Codes, going into dev->state */
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#define STATUS_GOOD 0x00
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#define STATUS_CHECK 0x02 /* MSG_SCANNER_STATE */
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#define STATUS_CANCEL 0x04
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#define STATUS_BUSY 0x08
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/* Message Code */
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#define MSG_NO_MESSAGE 0x00
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#define MSG_PRODUCT_INFO 0x10 /* CMD_INQUIRY */
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#define MSG_SCANNER_STATE 0x20 /* CMD_RESERVE_UNIT, and
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CMD_READ, CMD_SET_WINDOW, CMD_OBJECT_POSITION */
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#define MSG_SCANNING_PARAM 0x30 /* CMD_SET_WINDOW */
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#define MSG_PREVIEW_PARAM 0x31 /* CMD_SET_WINDOW */
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#define MSG_LINK_BLOCK 0x80 /* CMD_READ */
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#define MSG_END_BLOCK 0x81 /* CMD_READ */
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/* Scanner State Bits (if MSG_SCANNER_STATE if STATUS_CHECK) */
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#define STATE_NO_ERROR 0x001
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#define STATE_COMMAND_ERROR 0x002
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#define STATE_UNSUPPORTED 0x004
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#define STATE_RESET 0x008
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#define STATE_NO_DOCUMENT 0x010
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#define STATE_DOCUMENT_JAM 0x020
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#define STATE_COVER_OPEN 0x040
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#define STATE_WARMING 0x080
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#define STATE_LOCKING 0x100
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#define STATE_INVALID_AREA 0x200
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#define STATE_RESOURCE_BUSY 0x400
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/* Image Composition */
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#define MODE_LINEART 0x00
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#define MODE_HALFTONE 0x01
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#define MODE_GRAY8 0x03
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#define MODE_RGB24 0x05
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/* Document Source */
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#define DOC_ADF 0x20
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#define DOC_FLATBED 0x40
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#define DOC_AUTO 0x80
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/* xerox_mfp.h */
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