Initial import of sane-backends version 1.0.24-1.2

1 files changed, 216 insertions, 0 deletions

diff --git a/backend/xerox_mfp.h b/backend/xerox_mfp.h
new file mode 100644
index 0000000..500dd26
--- /dev/null
+++ b/backend/xerox_mfp.h
@@ -0,0 +1,216 @@
+/*
+ * SANE backend for Xerox Phaser 3200MFP
+ * Copyright 2008 ABC <abc@telekom.ru>
+ *
+ *	Network scanners support
+ *	Copyright 2010 Alexander Kuznetsov <acca(at)cpan.org>
+ *
+ * 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_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)
+
+  /* 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 */
+
+  /* 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	*/