diff options
Diffstat (limited to 'backend/pie.c')
| -rw-r--r-- | backend/pie.c | 3828 |
1 files changed, 3828 insertions, 0 deletions
diff --git a/backend/pie.c b/backend/pie.c new file mode 100644 index 0000000..941ed62 --- /dev/null +++ b/backend/pie.c @@ -0,0 +1,3828 @@ +/* sane - Scanner Access Now Easy.
+
+ pie.c
+
+ Copyright (C) 2000 Simon Munton, based on the umax backend by Oliver Rauch
+
+ This file is part of the SANE package.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice. */
+
+/*
+ * 22-2-2003 set devlist to NULL in sane_exit()
+ * set first_dev to NULL in sane_exit()
+ * eliminated num_devices
+ *
+ * 23-7-2002 added TL_X > BR_X, TL_Y > BR_Y check in sane_start
+ *
+ * 17-9-2001 changed ADLIB to AdLib as the comparison is case sensitive and
+ * the scanner returns AdLib
+ *
+ * 7-5-2001 removed removal of '\n' after sanei_config_read()
+ * free devlist allocated in sane_get_devices() on sane_exit()
+ *
+ * 2-3-2001 improved the reordering of RGB data in pie_reader_process()
+ *
+ * 11-11-2000 eliminated some warnings about signed/unsigned comparisons
+ * removed #undef NDEBUG and C++ style comments
+ *
+ * 1-10-2000 force gamma table to one to one mappping if lineart or halftone selected
+ *
+ * 30-9-2000 added ADLIB devices to scanner_str[]
+ *
+ * 29-9-2000 wasn't setting 'background is halftone bit' (BGHT) in halftone mode
+ *
+ * 27-9-2000 went public with build 4
+ */
+
+#include "../include/sane/config.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "../include/sane/sane.h"
+#include "../include/sane/sanei.h"
+#include "../include/sane/saneopts.h"
+#include "../include/sane/sanei_scsi.h"
+#include "../include/sane/sanei_debug.h"
+
+#define BACKEND_NAME pie
+#include "../include/sane/sanei_backend.h"
+#include "../include/sane/sanei_config.h"
+
+# include "../include/sane/sanei_thread.h"
+
+#include "pie-scsidef.h"
+
+#define DBG_error0 0
+#define DBG_error 1
+#define DBG_sense 2
+#define DBG_warning 3
+#define DBG_inquiry 4
+
+#define DBG_info 5
+#define DBG_info2 6
+#define DBG_proc 7
+#define DBG_read 8
+#define DBG_sane_init 10
+#define DBG_sane_proc 11
+#define DBG_sane_info 12
+#define DBG_sane_option 13
+#define DBG_dump 14
+
+#define BUILD 9
+
+#define PIE_CONFIG_FILE "pie.conf"
+
+#define LINEART_STR SANE_VALUE_SCAN_MODE_LINEART
+#define HALFTONE_STR SANE_VALUE_SCAN_MODE_HALFTONE
+#define GRAY_STR SANE_VALUE_SCAN_MODE_GRAY
+#define COLOR_STR SANE_VALUE_SCAN_MODE_COLOR
+
+#define LINEART 1
+#define HALFTONE 2
+#define GRAYSCALE 3
+#define RGB 4
+
+#define CAL_MODE_PREVIEW (INQ_CAP_FAST_PREVIEW)
+#define CAL_MODE_FLATBED 0x00
+#define CAL_MODE_ADF (INQ_OPT_DEV_ADF)
+#define CAL_MODE_TRANPSARENCY (INQ_OPT_DEV_TP)
+#define CAL_MODE_TRANPSARENCY1 (INQ_OPT_DEV_TP1)
+
+#define min(a,b) (((a)<(b))?(a):(b))
+#define max(a,b) (((a)>(b))?(a):(b))
+
+
+/* names of scanners that are supported because */
+/* the inquiry_return_block is ok and driver is tested */
+
+static char *scanner_str[] = {
+ "DEVCOM", "9636PRO",
+ "DEVCOM", "9636S",
+ "DEVCOM", "9630S",
+ "PIE", "ScanAce 1236S",
+ "PIE", "ScanAce 1230S",
+ "PIE", "ScanAce II",
+ "PIE", "ScanAce III",
+ "PIE", "ScanAce Plus",
+ "PIE", "ScanAce II Plus",
+ "PIE", "ScanAce III Plus",
+ "PIE", "ScanAce V",
+ "PIE", "ScanMedia",
+ "PIE", "ScanMedia II",
+ "PIE", "ScanAce 630S",
+ "PIE", "ScanAce 636S",
+ "AdLib", "JetScan 630",
+ "AdLib", "JetScan 636PRO",
+ "END_OF_LIST"
+};
+
+/* times (in us) to delay after certain commands. Scanner seems to lock up if it returns busy
+ * status and commands are repeatedly reissued (by kernel error handler) */
+
+#define DOWNLOAD_GAMMA_WAIT_TIME (1000000)
+#define SCAN_WAIT_TIME (1000000)
+#define SCAN_WARMUP_WAIT_TIME (500000)
+#define TUR_WAIT_TIME (500000)
+
+
+/* options supported by the scanner */
+
+enum Pie_Option
+{
+ OPT_NUM_OPTS = 0,
+
+ /* ------------------------------------------- */
+ OPT_MODE_GROUP,
+ OPT_MODE,
+ OPT_RESOLUTION,
+
+
+ /* ------------------------------------------- */
+
+ OPT_GEOMETRY_GROUP,
+ OPT_TL_X, /* top-left x */
+ OPT_TL_Y, /* top-left y */
+ OPT_BR_X, /* bottom-right x */
+ OPT_BR_Y, /* bottom-right y */
+
+ /* ------------------------------------------- */
+
+ OPT_ENHANCEMENT_GROUP,
+
+ OPT_HALFTONE_PATTERN,
+ OPT_SPEED,
+ OPT_THRESHOLD,
+
+ OPT_GAMMA_VECTOR,
+ OPT_GAMMA_VECTOR_R,
+ OPT_GAMMA_VECTOR_G,
+ OPT_GAMMA_VECTOR_B,
+
+ /* ------------------------------------------- */
+
+ OPT_ADVANCED_GROUP,
+ OPT_PREVIEW,
+
+ /* must come last: */
+ NUM_OPTIONS
+};
+
+
+
+
+/* This defines the information needed during calibration */
+
+struct Pie_cal_info
+{
+ int cal_type;
+ int receive_bits;
+ int send_bits;
+ int num_lines;
+ int pixels_per_line;
+};
+
+
+/* This structure holds the information about a physical scanner */
+
+typedef struct Pie_Device
+{
+ struct Pie_Device *next;
+
+ char *devicename; /* name of the scanner device */
+
+ char vendor[9]; /* will be xxxxx */
+ char product[17]; /* e.g. "SuperVista_S12" or so */
+ char version[5]; /* e.g. V1.3 */
+
+ SANE_Device sane;
+ SANE_Range dpi_range;
+ SANE_Range x_range;
+ SANE_Range y_range;
+
+ SANE_Range exposure_range;
+ SANE_Range shadow_range;
+ SANE_Range highlight_range;
+
+ int inquiry_len; /* length of inquiry return block */
+
+ int inquiry_x_res; /* maximum x-resolution */
+ int inquiry_y_res; /* maximum y-resolution */
+ int inquiry_pixel_resolution;
+ double inquiry_fb_width; /* flatbed width in inches */
+ double inquiry_fb_length; /* flatbed length in inches */
+
+ int inquiry_trans_top_left_x;
+ int inquiry_trans_top_left_y;
+ double inquiry_trans_width; /* transparency width in inches */
+ double inquiry_trans_length; /* transparency length in inches */
+
+ int inquiry_halftones; /* number of halftones supported */
+ int inquiry_filters; /* available colour filters */
+ int inquiry_color_depths; /* available colour depths */
+ int inquiry_color_format; /* colour format from scanner */
+ int inquiry_image_format; /* image data format */
+ int inquiry_scan_capability; /* additional scanner features, number of speeds */
+ int inquiry_optional_devices; /* optional devices */
+ int inquiry_enhancements; /* enhancements */
+ int inquiry_gamma_bits; /* no of bits used for gamma table */
+ int inquiry_fast_preview_res; /* fast preview resolution */
+ int inquiry_min_highlight; /* min highlight % that can be used */
+ int inquiry_max_shadow; /* max shadow % that can be used */
+ int inquiry_cal_eqn; /* which calibration equation to use */
+ int inquiry_min_exp; /* min exposure % */
+ int inquiry_max_exp; /* max exposure % */
+
+ SANE_String scan_mode_list[7]; /* holds names of types of scan (color, ...) */
+
+ SANE_String halftone_list[17]; /* holds the names of the halftone patterns from the scanner */
+
+ SANE_String speed_list[9]; /* holds the names of available speeds */
+
+ int cal_info_count; /* number of calibration info sets */
+ struct Pie_cal_info *cal_info; /* points to the actual calibration information */
+}
+Pie_Device;
+
+/* This structure holds information about an instance of an 'opened' scanner */
+
+typedef struct Pie_Scanner
+{
+ struct Pie_Scanner *next;
+ Pie_Device *device; /* pointer to physical scanner */
+
+ int sfd; /* scanner file desc. */
+ int bufsize; /* max scsi buffer size */
+
+ SANE_Option_Descriptor opt[NUM_OPTIONS]; /* option descriptions for this instance */
+ Option_Value val[NUM_OPTIONS]; /* option settings for this instance */
+ SANE_Int *gamma_table[4]; /* gamma tables for this instance */
+ SANE_Range gamma_range;
+ int gamma_length; /* size of gamma table */
+
+ int scanning; /* true if actually doing a scan */
+ SANE_Parameters params;
+
+ SANE_Pid reader_pid;
+ int pipe;
+ int reader_fds;
+
+ int colormode; /* whether RGB, GRAY, LINEART, HALFTONE */
+ int resolution;
+ int cal_mode; /* set to value to compare cal_info mode to */
+
+ int cal_filter; /* set to indicate which filters will provide data for cal */
+
+ int filter_offset1; /* offsets between colors in indexed scan mode */
+ int filter_offset2;
+
+ int bytes_per_line; /* number of bytes per line */
+
+}
+Pie_Scanner;
+
+static const SANE_Range percentage_range_100 = {
+ 0 << SANE_FIXED_SCALE_SHIFT, /* minimum */
+ 100 << SANE_FIXED_SCALE_SHIFT, /* maximum */
+ 0 << SANE_FIXED_SCALE_SHIFT /* quantization */
+};
+
+static Pie_Device *first_dev = NULL;
+static Pie_Scanner *first_handle = NULL;
+static const SANE_Device **devlist = NULL;
+
+
+
+static SANE_Status pie_wait_scanner (Pie_Scanner * scanner);
+
+
+/* ---------------------------------- PIE DUMP_BUFFER ---------------------------------- */
+
+#define DBG_DUMP(level, buf, n) { if (DBG_LEVEL >= (level)) pie_dump_buffer(level,buf,n); }
+
+
+static void
+pie_dump_buffer (int level, unsigned char *buf, int n)
+{
+ char s[80], *p = s;
+ int a = 0;
+
+ while (n--)
+ {
+ if ((a % 16) == 0)
+ p += sprintf (p, " %04X ", a);
+
+ p += sprintf (p, "%02X ", *buf++);
+
+ if ((n == 0) || (a % 16) == 15)
+ {
+ DBG (level, "%s\n", s);
+ p = s;
+ }
+ a++;
+ }
+}
+
+/* ---------------------------------- PIE INIT ---------------------------------- */
+
+static void
+pie_init (Pie_Device * dev) /* pie_init is called once while driver-initialization */
+{
+ DBG (DBG_proc, "init\n");
+
+ dev->cal_info_count = 0;
+ dev->cal_info = NULL;
+
+ dev->devicename = NULL;
+ dev->inquiry_len = 0;
+
+#ifdef HAVE_SANEI_SCSI_OPEN_EXTENDED
+ DBG (DBG_info,
+ "variable scsi buffer size (usage of sanei_scsi_open_extended)\n");
+#else
+ DBG (DBG_info, "fixed scsi buffer size = %d bytes\n",
+ sanei_scsi_max_request_size);
+#endif
+}
+
+
+/* ---------------------------- SENSE_HANDLER ------------------------------ */
+
+
+static SANE_Status
+sense_handler (__sane_unused__ int scsi_fd, unsigned char *result, __sane_unused__ void *arg) /* is called by sanei_scsi */
+{
+ unsigned char asc, ascq, sensekey;
+ int asc_ascq, len;
+ /* Pie_Device *dev = arg; */
+
+ DBG (DBG_proc, "check condition sense handler\n");
+
+ sensekey = get_RS_sense_key (result);
+ asc = get_RS_ASC (result);
+ ascq = get_RS_ASCQ (result);
+ asc_ascq = (int) (256 * asc + ascq);
+ len = 7 + get_RS_additional_length (result);
+
+ if (get_RS_error_code (result) != 0x70)
+ {
+ DBG (DBG_proc, "invalid sense key => handled as DEVICE BUSY!\n");
+ return SANE_STATUS_DEVICE_BUSY; /* sense key invalid */
+ }
+
+ DBG (DBG_sense, "check condition sense: %s\n", sense_str[sensekey]);
+
+ if (get_RS_ILI (result) != 0)
+ {
+ DBG (DBG_sense,
+ "-> ILI-ERROR: requested data length is larger than actual length\n");
+ }
+
+ switch (sensekey)
+ {
+ case 0x00: /* no sense, could have been busy */
+ return SANE_STATUS_IO_ERROR;
+ break;
+
+ case 0x02:
+ if (asc_ascq == 0x0401)
+ DBG (DBG_sense, "-> Not Ready - Warming Up\n");
+ else if (asc_ascq == 0x0483)
+ DBG (DBG_sense, "-> Not Ready - Need manual service\n");
+ else if (asc_ascq == 0x0881)
+ DBG (DBG_sense, "-> Not Ready - Communication time out\n");
+ else
+ DBG (DBG_sense, "-> unknown medium error: asc=%d, ascq=%d\n", asc,
+ ascq);
+ break;
+
+ case 0x03: /* medium error */
+ if (asc_ascq == 0x5300)
+ DBG (DBG_sense, "-> Media load or eject failure\n");
+ else if (asc_ascq == 0x3a00)
+ DBG (DBG_sense, "-> Media not present\n");
+ else if (asc_ascq == 0x3b05)
+ DBG (DBG_sense, "-> Paper jam\n");
+ else if (asc_ascq == 0x3a80)
+ DBG (DBG_sense, "-> ADF paper out\n");
+ else
+ DBG (DBG_sense, "-> unknown medium error: asc=%d, ascq=%d\n", asc,
+ ascq);
+ break;
+
+
+ case 0x04: /* hardware error */
+ if (asc_ascq == 0x4081)
+ DBG (DBG_sense, "-> CPU RAM failure\n");
+ else if (asc_ascq == 0x4082)
+ DBG (DBG_sense, "-> Scanning system RAM failure\n");
+ else if (asc_ascq == 0x4083)
+ DBG (DBG_sense, "-> Image buffer failure\n");
+ else if (asc_ascq == 0x0403)
+ DBG (DBG_sense, "-> Manual intervention required\n");
+ else if (asc_ascq == 0x6200)
+ DBG (DBG_sense, "-> Scan head position error\n");
+ else if (asc_ascq == 0x6000)
+ DBG (DBG_sense, "-> Lamp or CCD failure\n");
+ else if (asc_ascq == 0x6081)
+ DBG (DBG_sense, "-> Transparency lamp failure\n");
+ else if (asc_ascq == 0x8180)
+ DBG (DBG_sense, "-> DC offset or black level calibration failure\n");
+ else if (asc_ascq == 0x8181)
+ DBG (DBG_sense,
+ "-> Integration time adjustment failure (too light)\n");
+ else if (asc_ascq == 0x8182)
+ DBG (DBG_sense,
+ "-> Integration time adjustment failure (too dark)\n");
+ else if (asc_ascq == 0x8183)
+ DBG (DBG_sense, "-> Shading curve adjustment failure\n");
+ else if (asc_ascq == 0x8184)
+ DBG (DBG_sense, "-> Gain adjustment failure\n");
+ else if (asc_ascq == 0x8185)
+ DBG (DBG_sense, "-> Optical alignment failure\n");
+ else if (asc_ascq == 0x8186)
+ DBG (DBG_sense, "-> Optical locating failure\n");
+ else if (asc_ascq == 0x8187)
+ DBG (DBG_sense, "-> Scan pixel map less than 5100 pixels!\n");
+ else if (asc_ascq == 0x4700)
+ DBG (DBG_sense, "-> Parity error on SCSI bus\n");
+ else if (asc_ascq == 0x4b00)
+ DBG (DBG_sense, "-> Data phase error\n");
+ else
+ DBG (DBG_sense, "-> unknown hardware error: asc=%d, ascq=%d\n", asc,
+ ascq);
+ return SANE_STATUS_IO_ERROR;
+ break;
+
+
+ case 0x05: /* illegal request */
+ if (asc_ascq == 0x1a00)
+ DBG (DBG_sense, "-> Parameter list length error\n");
+ else if (asc_ascq == 0x2c01)
+ DBG (DBG_sense, "-> Too many windows specified\n");
+ else if (asc_ascq == 0x2c02)
+ DBG (DBG_sense, "-> Invalid combination of windows\n");
+ else if (asc_ascq == 0x2c81)
+ DBG (DBG_sense, "-> Illegal scanning frame\n");
+ else if (asc_ascq == 0x2400)
+ DBG (DBG_sense, "-> Invalid field in CDB\n");
+ else if (asc_ascq == 0x2481)
+ DBG (DBG_sense, "-> Request too many lines of data\n");
+ else if (asc_ascq == 0x2000)
+ DBG (DBG_sense, "-> Invalid command OP code\n");
+ else if (asc_ascq == 0x2501)
+ DBG (DBG_sense, "-> LUN not supported\n");
+ else if (asc_ascq == 0x2601)
+ DBG (DBG_sense, "-> Parameter not supported\n");
+ else if (asc_ascq == 0x2602)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Parameter not specified\n");
+ else if (asc_ascq == 0x2603)
+ DBG (DBG_sense, "-> Parameter value invalid - Invalid threshold\n");
+ else if (asc_ascq == 0x2680)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Control command sequence error\n");
+ else if (asc_ascq == 0x2681)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Grain setting (halftone pattern\n");
+ else if (asc_ascq == 0x2682)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal resolution setting\n");
+ else if (asc_ascq == 0x2683)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Invalid filter assignment\n");
+ else if (asc_ascq == 0x2684)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal gamma adjustment setting (look-up table)\n");
+ else if (asc_ascq == 0x2685)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal offset setting (digital brightness)\n");
+ else if (asc_ascq == 0x2686)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal bits per pixel setting\n");
+ else if (asc_ascq == 0x2687)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal contrast setting\n");
+ else if (asc_ascq == 0x2688)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal paper length setting\n");
+ else if (asc_ascq == 0x2689)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal highlight/shadow setting\n");
+ else if (asc_ascq == 0x268a)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal exposure time setting (analog brightness)\n");
+ else if (asc_ascq == 0x268b)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Invalid device select or device not exist\n");
+ else if (asc_ascq == 0x268c)
+ DBG (DBG_sense,
+ "-> Parameter value invalid - Illegal color packing\n");
+ else if (asc_ascq == 0x3d00)
+ DBG (DBG_sense, "-> Invalid bits in identify field\n");
+
+
+
+ else if (asc_ascq == 0x4900)
+ DBG (DBG_sense, "-> Invalid message\n");
+ else if (asc_ascq == 0x8101)
+ DBG (DBG_sense, "-> Not enough memory for color packing\n");
+
+ if (len >= 0x11)
+ {
+ if (get_RS_SKSV (result) != 0)
+ {
+ if (get_RS_CD (result) == 0)
+ {
+
+ DBG (DBG_sense, "-> illegal parameter in CDB\n");
+ }
+ else
+ {
+ DBG (DBG_sense,
+ "-> illegal parameter is in the data parameters sent during data out phase\n");
+ }
+
+ DBG (DBG_sense, "-> error detected in byte %d\n",
+ get_RS_field_pointer (result));
+ }
+ }
+ return SANE_STATUS_IO_ERROR;
+ break;
+
+
+ case 0x06: /* unit attention */
+ if (asc_ascq == 0x2900)
+ DBG (DBG_sense, "-> power on, reset or bus device reset\n");
+ if (asc_ascq == 0x8200)
+ DBG (DBG_sense,
+ "-> unit attention - calibration disable not granted\n");
+ if (asc_ascq == 0x8300)
+ DBG (DBG_sense, "-> unit attention - calibration will be ignored\n");
+ else
+ DBG (DBG_sense, "-> unit attention: asc=%d, ascq=%d\n", asc, ascq);
+ break;
+
+
+ case 0x09: /* vendor specific */
+ DBG (DBG_sense, "-> vendor specific sense-code: asc=%d, ascq=%d\n", asc,
+ ascq);
+ break;
+
+ case 0x0b:
+ if (asc_ascq == 0x0006)
+ DBG (DBG_sense, "-> Received ABORT message from initiator\n");
+ if (asc_ascq == 0x4800)
+ DBG (DBG_sense, "-> Initiator detected error message received\n");
+ if (asc_ascq == 0x4300)
+ DBG (DBG_sense, "-> Message error\n");
+ if (asc_ascq == 0x4500)
+ DBG (DBG_sense, "-> Select or re-select error\n");
+ else
+ DBG (DBG_sense, "-> aborted command: asc=%d, ascq=%d\n", asc, ascq);
+ break;
+
+ }
+
+ return SANE_STATUS_IO_ERROR;
+}
+
+
+/* -------------------------------- PIE PRINT INQUIRY ------------------------- */
+
+
+static void
+pie_print_inquiry (Pie_Device * dev)
+{
+ DBG (DBG_inquiry, "INQUIRY:\n");
+ DBG (DBG_inquiry, "========\n");
+ DBG (DBG_inquiry, "\n");
+ DBG (DBG_inquiry, "vendor........................: '%s'\n", dev->vendor);
+ DBG (DBG_inquiry, "product.......................: '%s'\n", dev->product);
+ DBG (DBG_inquiry, "version.......................: '%s'\n", dev->version);
+
+ DBG (DBG_inquiry, "X resolution..................: %d dpi\n",
+ dev->inquiry_x_res);
+ DBG (DBG_inquiry, "Y resolution..................: %d dpi\n",
+ dev->inquiry_y_res);
+ DBG (DBG_inquiry, "pixel resolution..............: %d dpi\n",
+ dev->inquiry_pixel_resolution);
+ DBG (DBG_inquiry, "fb width......................: %f in\n",
+ dev->inquiry_fb_width);
+ DBG (DBG_inquiry, "fb length.....................: %f in\n",
+ dev->inquiry_fb_length);
+
+ DBG (DBG_inquiry, "transparency width............: %f in\n",
+ dev->inquiry_trans_width);
+ DBG (DBG_inquiry, "transparency length...........: %f in\n",
+ dev->inquiry_trans_length);
+ DBG (DBG_inquiry, "transparency offset...........: %d,%d\n",
+ dev->inquiry_trans_top_left_x, dev->inquiry_trans_top_left_y);
+
+ DBG (DBG_inquiry, "# of halftones................: %d\n",
+ dev->inquiry_halftones);
+
+ DBG (DBG_inquiry, "One pass color................: %s\n",
+ dev->inquiry_filters & INQ_ONE_PASS_COLOR ? "yes" : "no");
+
+ DBG (DBG_inquiry, "Filters.......................: %s%s%s%s (%02x)\n",
+ dev->inquiry_filters & INQ_FILTER_RED ? "Red " : "",
+ dev->inquiry_filters & INQ_FILTER_GREEN ? "Green " : "",
+ dev->inquiry_filters & INQ_FILTER_BLUE ? "Blue " : "",
+ dev->inquiry_filters & INQ_FILTER_NEUTRAL ? "Neutral " : "",
+ dev->inquiry_filters);
+
+ DBG (DBG_inquiry, "Color depths..................: %s%s%s%s%s%s (%02x)\n",
+ dev->inquiry_color_depths & INQ_COLOR_DEPTH_16 ? "16 bit " : "",
+ dev->inquiry_color_depths & INQ_COLOR_DEPTH_12 ? "12 bit " : "",
+ dev->inquiry_color_depths & INQ_COLOR_DEPTH_10 ? "10 bit " : "",
+ dev->inquiry_color_depths & INQ_COLOR_DEPTH_8 ? "8 bit " : "",
+ dev->inquiry_color_depths & INQ_COLOR_DEPTH_4 ? "4 bit " : "",
+ dev->inquiry_color_depths & INQ_COLOR_DEPTH_1 ? "1 bit " : "",
+ dev->inquiry_color_depths);
+
+ DBG (DBG_inquiry, "Color Format..................: %s%s%s (%02x)\n",
+ dev->inquiry_color_format & INQ_COLOR_FORMAT_INDEX ? "Indexed " : "",
+ dev->inquiry_color_format & INQ_COLOR_FORMAT_LINE ? "Line " : "",
+ dev->inquiry_color_format & INQ_COLOR_FORMAT_PIXEL ? "Pixel " : "",
+ dev->inquiry_color_format);
+
+ DBG (DBG_inquiry, "Image Format..................: %s%s%s%s (%02x)\n",
+ dev->inquiry_image_format & INQ_IMG_FMT_OKLINE ? "OKLine " : "",
+ dev->inquiry_image_format & INQ_IMG_FMT_BLK_ONE ? "BlackOne " : "",
+ dev->inquiry_image_format & INQ_IMG_FMT_MOTOROLA ? "Motorola " : "",
+ dev->inquiry_image_format & INQ_IMG_FMT_INTEL ? "Intel" : "",
+ dev->inquiry_image_format);
+
+ DBG (DBG_inquiry,
+ "Scan Capability...............: %s%s%s%s%d speeds (%02x)\n",
+ dev->inquiry_scan_capability & INQ_CAP_PWRSAV ? "PowerSave " : "",
+ dev->inquiry_scan_capability & INQ_CAP_EXT_CAL ? "ExtCal " : "",
+ dev->inquiry_scan_capability & INQ_CAP_FAST_PREVIEW ? "FastPreview" :
+ "",
+ dev->inquiry_scan_capability & INQ_CAP_DISABLE_CAL ? "DisCal " : "",
+ dev->inquiry_scan_capability & INQ_CAP_SPEEDS,
+ dev->inquiry_scan_capability);
+
+ DBG (DBG_inquiry, "Optional Devices..............: %s%s%s%s (%02x)\n",
+ dev->inquiry_optional_devices & INQ_OPT_DEV_MPCL ? "MultiPageLoad " :
+ "",
+ dev->inquiry_optional_devices & INQ_OPT_DEV_TP1 ? "TransModule1 " : "",
+ dev->inquiry_optional_devices & INQ_OPT_DEV_TP ? "TransModule " : "",
+ dev->inquiry_optional_devices & INQ_OPT_DEV_ADF ? "ADF " : "",
+ dev->inquiry_optional_devices);
+
+ DBG (DBG_inquiry, "Enhancement...................: %02x\n",
+ dev->inquiry_enhancements);
+ DBG (DBG_inquiry, "Gamma bits....................: %d\n",
+ dev->inquiry_gamma_bits);
+
+ DBG (DBG_inquiry, "Fast Preview Resolution.......: %d\n",
+ dev->inquiry_fast_preview_res);
+ DBG (DBG_inquiry, "Min Highlight.................: %d\n",
+ dev->inquiry_min_highlight);
+ DBG (DBG_inquiry, "Max Shadow....................: %d\n",
+ dev->inquiry_max_shadow);
+ DBG (DBG_inquiry, "Cal Eqn.......................: %d\n",
+ dev->inquiry_cal_eqn);
+ DBG (DBG_inquiry, "Min Exposure..................: %d\n",
+ dev->inquiry_min_exp);
+ DBG (DBG_inquiry, "Max Exposure..................: %d\n",
+ dev->inquiry_max_exp);
+}
+
+
+/* ------------------------------ PIE GET INQUIRY VALUES -------------------- */
+
+
+static void
+pie_get_inquiry_values (Pie_Device * dev, unsigned char *buffer)
+{
+ DBG (DBG_proc, "get_inquiry_values\n");
+
+ dev->inquiry_len = get_inquiry_additional_length (buffer) + 5;
+
+ get_inquiry_vendor ((char *) buffer, dev->vendor);
+ dev->vendor[8] = '\0';
+ get_inquiry_product ((char *) buffer, dev->product);
+ dev->product[16] = '\0';
+ get_inquiry_version ((char *) buffer, dev->version);
+ dev->version[4] = '\0';
+
+ dev->inquiry_x_res = get_inquiry_max_x_res (buffer);
+ dev->inquiry_y_res = get_inquiry_max_y_res (buffer);
+
+ if (dev->inquiry_y_res < 256)
+ {
+ /* y res is a multiplier */
+ dev->inquiry_pixel_resolution = dev->inquiry_x_res;
+ dev->inquiry_x_res *= dev->inquiry_y_res;
+ dev->inquiry_y_res = dev->inquiry_x_res;
+ }
+ else
+ {
+ /* y res really is resolution */
+ dev->inquiry_pixel_resolution =
+ min (dev->inquiry_x_res, dev->inquiry_y_res);
+ }
+
+ dev->inquiry_fb_width =
+ (double) get_inquiry_fb_max_scan_width (buffer) /
+ dev->inquiry_pixel_resolution;
+ dev->inquiry_fb_length =
+ (double) get_inquiry_fb_max_scan_length (buffer) /
+ dev->inquiry_pixel_resolution;
+
+ dev->inquiry_trans_top_left_x = get_inquiry_trans_x1 (buffer);
+ dev->inquiry_trans_top_left_y = get_inquiry_trans_y1 (buffer);
+
+ dev->inquiry_trans_width =
+ (double) (get_inquiry_trans_x2 (buffer) -
+ get_inquiry_trans_x1 (buffer)) / dev->inquiry_pixel_resolution;
+ dev->inquiry_trans_length =
+ (double) (get_inquiry_trans_y2 (buffer) -
+ get_inquiry_trans_y1 (buffer)) / dev->inquiry_pixel_resolution;
+
+ dev->inquiry_halftones = get_inquiry_halftones (buffer) & 0x0f;
+
+ dev->inquiry_filters = get_inquiry_filters (buffer);
+ dev->inquiry_color_depths = get_inquiry_color_depths (buffer);
+ dev->inquiry_color_format = get_inquiry_color_format (buffer);
+ dev->inquiry_image_format = get_inquiry_image_format (buffer);
+
+ dev->inquiry_scan_capability = get_inquiry_scan_capability (buffer);
+ dev->inquiry_optional_devices = get_inquiry_optional_devices (buffer);
+ dev->inquiry_enhancements = get_inquiry_enhancements (buffer);
+ dev->inquiry_gamma_bits = get_inquiry_gamma_bits (buffer);
+ dev->inquiry_fast_preview_res = get_inquiry_fast_preview_res (buffer);
+ dev->inquiry_min_highlight = get_inquiry_min_highlight (buffer);
+ dev->inquiry_max_shadow = get_inquiry_max_shadow (buffer);
+ dev->inquiry_cal_eqn = get_inquiry_cal_eqn (buffer);
+ dev->inquiry_min_exp = get_inquiry_min_exp (buffer);
+ dev->inquiry_max_exp = get_inquiry_max_exp (buffer);
+
+ pie_print_inquiry (dev);
+
+ return;
+}
+
+/* ----------------------------- PIE DO INQUIRY ---------------------------- */
+
+
+static void
+pie_do_inquiry (int sfd, unsigned char *buffer)
+{
+ size_t size;
+ SANE_Status status;
+
+ DBG (DBG_proc, "do_inquiry\n");
+ memset (buffer, '\0', 256); /* clear buffer */
+
+ size = 5;
+
+ set_inquiry_return_size (inquiry.cmd, size); /* first get only 5 bytes to get size of inquiry_return_block */
+ status = sanei_scsi_cmd (sfd, inquiry.cmd, inquiry.size, buffer, &size);
+ if (status)
+ {
+ DBG (DBG_error, "pie_do_inquiry: command returned status %s\n",
+ sane_strstatus (status));
+ }
+
+ size = get_inquiry_additional_length (buffer) + 5;
+
+ set_inquiry_return_size (inquiry.cmd, size); /* then get inquiry with actual size */
+ status = sanei_scsi_cmd (sfd, inquiry.cmd, inquiry.size, buffer, &size);
+ if (status)
+ {
+ DBG (DBG_error, "pie_do_inquiry: command returned status %s\n",
+ sane_strstatus (status));
+ }
+}
+
+/* ---------------------- PIE IDENTIFY SCANNER ---------------------- */
+
+
+static int
+pie_identify_scanner (Pie_Device * dev, int sfd)
+{
+ char vendor[9];
+ char product[0x11];
+ char version[5];
+ char *pp;
+ int i = 0;
+ unsigned char inquiry_block[256];
+
+ DBG (DBG_proc, "identify_scanner\n");
+
+ pie_do_inquiry (sfd, inquiry_block); /* get inquiry */
+
+ if (get_inquiry_periph_devtype (inquiry_block) != IN_periph_devtype_scanner)
+ {
+ return 1;
+ } /* no scanner */
+
+ get_inquiry_vendor ((char *) inquiry_block, vendor);
+ get_inquiry_product ((char *) inquiry_block, product);
+ get_inquiry_version ((char *) inquiry_block, version);
+
+ pp = &vendor[8];
+ vendor[8] = ' ';
+ while (*pp == ' ')
+ {
+ *pp-- = '\0';
+ }
+
+ pp = &product[0x10];
+ product[0x10] = ' ';
+ while (*pp == ' ')
+ {
+ *pp-- = '\0';
+ }
+
+ pp = &version[4];
+
+ version[4] = ' ';
+ while (*pp == ' ')
+ {
+ *pp-- = '\0';
+ }
+
+ DBG (DBG_info, "Found %s scanner %s version %s on device %s\n", vendor,
+ product, version, dev->devicename);
+
+ while (strncmp ("END_OF_LIST", scanner_str[2 * i], 11) != 0) /* Now identify full supported scanners */
+ {
+ if (!strncmp (vendor, scanner_str[2 * i], strlen (scanner_str[2 * i])))
+ {
+ if (!strncmp
+ (product, scanner_str[2 * i + 1],
+ strlen (scanner_str[2 * i + 1])))
+ {
+ DBG (DBG_info, "found supported scanner\n");
+
+ pie_get_inquiry_values (dev, inquiry_block);
+ return 0;
+ }
+ }
+ i++;
+ }
+
+ return 1; /* NO SUPPORTED SCANNER: short inquiry-block and unknown scanner */
+}
+
+
+/* ------------------------------- GET SPEEDS ----------------------------- */
+
+static void
+pie_get_speeds (Pie_Device * dev)
+{
+ int speeds = dev->inquiry_scan_capability & INQ_CAP_SPEEDS;
+
+ DBG (DBG_proc, "get_speeds\n");
+
+ if (speeds == 3)
+ {
+ dev->speed_list[0] = strdup ("Normal");
+ dev->speed_list[1] = strdup ("Fine");
+ dev->speed_list[2] = strdup ("Pro");
+ dev->speed_list[3] = NULL;
+ }
+ else
+ {
+ int i;
+ char buf[2];
+
+ buf[1] = '\0';
+
+ for (i = 0; i < speeds; i++)
+ {
+ buf[0] = '1' + i;
+ dev->speed_list[i] = strdup (buf);
+ }
+
+ dev->speed_list[i] = NULL;
+ }
+}
+
+/* ------------------------------- GET HALFTONES ----------------------------- */
+
+static void
+pie_get_halftones (Pie_Device * dev, int sfd)
+{
+ int i;
+ size_t size;
+ SANE_Status status;
+ unsigned char *data;
+ unsigned char buffer[128];
+
+ DBG (DBG_proc, "get_halftones\n");
+
+ for (i = 0; i < dev->inquiry_halftones; i++)
+ {
+ size = 6;
+
+ set_write_length (swrite.cmd, size);
+
+ memcpy (buffer, swrite.cmd, swrite.size);
+
+ data = buffer + swrite.size;
+ memset (data, 0, size);
+
+ set_command (data, READ_HALFTONE);
+ set_data_length (data, 2);
+ data[4] = i;
+
+ status = sanei_scsi_cmd (sfd, buffer, swrite.size + size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error,
+ "pie_get_halftones: write command returned status %s\n",
+ sane_strstatus (status));
+ }
+ else
+ {
+ /* now read the halftone data */
+ memset (buffer, '\0', sizeof buffer); /* clear buffer */
+
+ size = 128;
+ set_read_length (sread.cmd, size);
+
+ DBG (DBG_info, "doing read\n");
+ status = sanei_scsi_cmd (sfd, sread.cmd, sread.size, buffer, &size);
+ if (status)
+ {
+ DBG (DBG_error,
+ "pie_get_halftones: read command returned status %s\n",
+ sane_strstatus (status));
+ }
+ else
+ {
+ unsigned char *s;
+
+ s = buffer + 8 + buffer[6] * buffer[7];
+
+ DBG (DBG_info, "halftone %d: %s\n", i, s);
+
+ dev->halftone_list[i] = strdup ((char *)s);
+ }
+ }
+ }
+ dev->halftone_list[i] = NULL;
+}
+
+/* ------------------------------- GET CAL DATA ----------------------------- */
+
+static void
+pie_get_cal_info (Pie_Device * dev, int sfd)
+{
+ size_t size;
+ SANE_Status status;
+ unsigned char *data;
+ unsigned char buffer[280];
+
+ DBG (DBG_proc, "get_cal_info\n");
+
+ if (!(dev->inquiry_scan_capability & INQ_CAP_EXT_CAL))
+ return;
+
+ size = 6;
+
+ set_write_length (swrite.cmd, size);
+
+ memcpy (buffer, swrite.cmd, swrite.size);
+
+ data = buffer + swrite.size;
+ memset (data, 0, size);
+
+ set_command (data, READ_CAL_INFO);
+
+ status = sanei_scsi_cmd (sfd, buffer, swrite.size + size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error, "pie_get_cal_info: write command returned status %s\n",
+ sane_strstatus (status));
+ }
+ else
+ {
+ /* now read the cal data */
+ memset (buffer, '\0', sizeof buffer); /* clear buffer */
+
+ size = 128;
+ set_read_length (sread.cmd, size);
+
+ DBG (DBG_info, "doing read\n");
+ status = sanei_scsi_cmd (sfd, sread.cmd, sread.size, buffer, &size);
+ if (status)
+ {
+ DBG (DBG_error,
+ "pie_get_cal_info: read command returned status %s\n",
+ sane_strstatus (status));
+ }
+ else
+ {
+ int i;
+
+ dev->cal_info_count = buffer[4];
+ dev->cal_info =
+ malloc (sizeof (struct Pie_cal_info) * dev->cal_info_count);
+
+ for (i = 0; i < dev->cal_info_count; i++)
+ {
+ dev->cal_info[i].cal_type = buffer[8 + i * buffer[5]];
+ dev->cal_info[i].send_bits = buffer[9 + i * buffer[5]];
+ dev->cal_info[i].receive_bits = buffer[10 + i * buffer[5]];
+ dev->cal_info[i].num_lines = buffer[11 + i * buffer[5]];
+ dev->cal_info[i].pixels_per_line =
+ (buffer[13 + i * buffer[5]] << 8) + buffer[12 +
+ i * buffer[5]];
+
+ DBG (DBG_info2, "%02x %2d %2d %2d %d\n",
+ dev->cal_info[i].cal_type, dev->cal_info[i].send_bits,
+ dev->cal_info[i].receive_bits, dev->cal_info[i].num_lines,
+ dev->cal_info[i].pixels_per_line);
+ }
+ }
+ }
+}
+
+/* ------------------------------- ATTACH SCANNER ----------------------------- */
+
+static SANE_Status
+attach_scanner (const char *devicename, Pie_Device ** devp)
+{
+ Pie_Device *dev;
+ int sfd;
+ int bufsize;
+
+ DBG (DBG_sane_proc, "attach_scanner: %s\n", devicename);
+
+ for (dev = first_dev; dev; dev = dev->next)
+ {
+ if (strcmp (dev->sane.name, devicename) == 0)
+ {
+ if (devp)
+ {
+ *devp = dev;
+ }
+ return SANE_STATUS_GOOD;
+ }
+ }
+
+ dev = malloc (sizeof (*dev));
+ if (!dev)
+ {
+ return SANE_STATUS_NO_MEM;
+ }
+
+ DBG (DBG_info, "attach_scanner: opening %s\n", devicename);
+
+#ifdef HAVE_SANEI_SCSI_OPEN_EXTENDED
+ bufsize = 16384; /* 16KB */
+
+ if (sanei_scsi_open_extended
+ (devicename, &sfd, sense_handler, dev, &bufsize) != 0)
+ {
+ DBG (DBG_error, "attach_scanner: open failed\n");
+ free (dev);
+ return SANE_STATUS_INVAL;
+ }
+
+ if (bufsize < 4096) /* < 4KB */
+ {
+ DBG (DBG_error,
+ "attach_scanner: sanei_scsi_open_extended returned too small scsi buffer (%d)\n",
+ bufsize);
+ sanei_scsi_close (sfd);
+ free (dev);
+ return SANE_STATUS_NO_MEM;
+ }
+
+ DBG (DBG_info,
+ "attach_scanner: sanei_scsi_open_extended returned scsi buffer size = %d\n",
+ bufsize);
+#else
+ bufsize = sanei_scsi_max_request_size;
+
+ if (sanei_scsi_open (devicename, &sfd, sense_handler, dev) != 0)
+ {
+ DBG (DBG_error, "attach_scanner: open failed\n");
+ free (dev);
+
+ return SANE_STATUS_INVAL;
+
+ }
+#endif
+
+ pie_init (dev); /* preset values in structure dev */
+
+ dev->devicename = strdup (devicename);
+
+ if (pie_identify_scanner (dev, sfd) != 0)
+ {
+ DBG (DBG_error, "attach_scanner: scanner-identification failed\n");
+ sanei_scsi_close (sfd);
+ free (dev);
+ return SANE_STATUS_INVAL;
+ }
+
+ pie_get_halftones (dev, sfd);
+ pie_get_cal_info (dev, sfd);
+ pie_get_speeds (dev);
+
+ dev->scan_mode_list[0] = COLOR_STR;
+ dev->scan_mode_list[1] = GRAY_STR;
+ dev->scan_mode_list[2] = LINEART_STR;
+ dev->scan_mode_list[3] = HALFTONE_STR;
+ dev->scan_mode_list[4] = 0;
+
+ sanei_scsi_close (sfd);
+
+ dev->sane.name = dev->devicename;
+ dev->sane.vendor = dev->vendor;
+ dev->sane.model = dev->product;
+ dev->sane.type = "flatbed scanner";
+
+ dev->x_range.min = SANE_FIX (0);
+ dev->x_range.quant = SANE_FIX (0);
+ dev->x_range.max = SANE_FIX (dev->inquiry_fb_width * MM_PER_INCH);
+
+ dev->y_range.min = SANE_FIX (0);
+ dev->y_range.quant = SANE_FIX (0);
+ dev->y_range.max = SANE_FIX (dev->inquiry_fb_length * MM_PER_INCH);
+
+ dev->dpi_range.min = SANE_FIX (25);
+ dev->dpi_range.quant = SANE_FIX (1);
+ dev->dpi_range.max =
+ SANE_FIX (max (dev->inquiry_x_res, dev->inquiry_y_res));
+
+ dev->shadow_range.min = SANE_FIX (0);
+ dev->shadow_range.quant = SANE_FIX (1);
+ dev->shadow_range.max = SANE_FIX (dev->inquiry_max_shadow);
+
+ dev->highlight_range.min = SANE_FIX (dev->inquiry_min_highlight);
+ dev->highlight_range.quant = SANE_FIX (1);
+ dev->highlight_range.max = SANE_FIX (100);
+
+ dev->exposure_range.min = SANE_FIX (dev->inquiry_min_exp);
+ dev->exposure_range.quant = SANE_FIX (1);
+ dev->exposure_range.max = SANE_FIX (dev->inquiry_max_exp);
+
+#if 0
+ dev->analog_gamma_range.min = SANE_FIX (1.0);
+ dev->analog_gamma_range.quant = SANE_FIX (0.01);
+ dev->analog_gamma_range.max = SANE_FIX (2.0);
+
+#endif
+
+ dev->next = first_dev;
+ first_dev = dev;
+
+ if (devp)
+ {
+ *devp = dev;
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+/* --------------------------- MAX STRING SIZE ---------------------------- */
+
+
+static size_t
+max_string_size (SANE_String_Const strings[])
+{
+ size_t size, max_size = 0;
+ int i;
+
+ for (i = 0; strings[i]; ++i)
+ {
+ size = strlen (strings[i]) + 1;
+ if (size > max_size)
+ {
+ max_size = size;
+ }
+ }
+
+ return max_size;
+}
+
+
+/* --------------------------- INIT OPTIONS ------------------------------- */
+
+
+static SANE_Status
+init_options (Pie_Scanner * scanner)
+{
+ int i;
+
+ DBG (DBG_sane_proc, "init_options\n");
+
+ memset (scanner->opt, 0, sizeof (scanner->opt));
+ memset (scanner->val, 0, sizeof (scanner->val));
+
+ for (i = 0; i < NUM_OPTIONS; ++i)
+ {
+ scanner->opt[i].size = sizeof (SANE_Word);
+ scanner->opt[i].cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
+ }
+
+ scanner->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS;
+ scanner->opt[OPT_NUM_OPTS].desc = SANE_DESC_NUM_OPTIONS;
+ scanner->opt[OPT_NUM_OPTS].type = SANE_TYPE_INT;
+ scanner->opt[OPT_NUM_OPTS].cap = SANE_CAP_SOFT_DETECT;
+ scanner->val[OPT_NUM_OPTS].w = NUM_OPTIONS;
+
+ /* "Mode" group: */
+ scanner->opt[OPT_MODE_GROUP].title = "Scan Mode";
+ scanner->opt[OPT_MODE_GROUP].desc = "";
+ scanner->opt[OPT_MODE_GROUP].type = SANE_TYPE_GROUP;
+ scanner->opt[OPT_MODE_GROUP].cap = 0;
+ scanner->opt[OPT_MODE_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* scan mode */
+ scanner->opt[OPT_MODE].name = SANE_NAME_SCAN_MODE;
+ scanner->opt[OPT_MODE].title = SANE_TITLE_SCAN_MODE;
+ scanner->opt[OPT_MODE].desc = SANE_DESC_SCAN_MODE;
+ scanner->opt[OPT_MODE].type = SANE_TYPE_STRING;
+ scanner->opt[OPT_MODE].size =
+ max_string_size ((SANE_String_Const *) scanner->device->scan_mode_list);
+ scanner->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ scanner->opt[OPT_MODE].constraint.string_list =
+ (SANE_String_Const *) scanner->device->scan_mode_list;
+ scanner->val[OPT_MODE].s =
+ (SANE_Char *) strdup (scanner->device->scan_mode_list[0]);
+
+ /* x-resolution */
+ scanner->opt[OPT_RESOLUTION].name = SANE_NAME_SCAN_RESOLUTION;
+ scanner->opt[OPT_RESOLUTION].title = SANE_TITLE_SCAN_RESOLUTION;
+ scanner->opt[OPT_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION;
+ scanner->opt[OPT_RESOLUTION].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_RESOLUTION].unit = SANE_UNIT_DPI;
+ scanner->opt[OPT_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_RESOLUTION].constraint.range = &scanner->device->dpi_range;
+ scanner->val[OPT_RESOLUTION].w = 100 << SANE_FIXED_SCALE_SHIFT;
+
+ /* "Geometry" group: */
+
+ scanner->opt[OPT_GEOMETRY_GROUP].title = "Geometry";
+ scanner->opt[OPT_GEOMETRY_GROUP].desc = "";
+ scanner->opt[OPT_GEOMETRY_GROUP].type = SANE_TYPE_GROUP;
+ scanner->opt[OPT_GEOMETRY_GROUP].cap = SANE_CAP_ADVANCED;
+ scanner->opt[OPT_GEOMETRY_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* top-left x */
+ scanner->opt[OPT_TL_X].name = SANE_NAME_SCAN_TL_X;
+ scanner->opt[OPT_TL_X].title = SANE_TITLE_SCAN_TL_X;
+ scanner->opt[OPT_TL_X].desc = SANE_DESC_SCAN_TL_X;
+ scanner->opt[OPT_TL_X].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_TL_X].unit = SANE_UNIT_MM;
+ scanner->opt[OPT_TL_X].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_TL_X].constraint.range = &(scanner->device->x_range);
+ scanner->val[OPT_TL_X].w = 0;
+
+ /* top-left y */
+ scanner->opt[OPT_TL_Y].name = SANE_NAME_SCAN_TL_Y;
+ scanner->opt[OPT_TL_Y].title = SANE_TITLE_SCAN_TL_Y;
+ scanner->opt[OPT_TL_Y].desc = SANE_DESC_SCAN_TL_Y;
+ scanner->opt[OPT_TL_Y].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_TL_Y].unit = SANE_UNIT_MM;
+ scanner->opt[OPT_TL_Y].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_TL_Y].constraint.range = &(scanner->device->y_range);
+ scanner->val[OPT_TL_Y].w = 0;
+
+ /* bottom-right x */
+ scanner->opt[OPT_BR_X].name = SANE_NAME_SCAN_BR_X;
+ scanner->opt[OPT_BR_X].title = SANE_TITLE_SCAN_BR_X;
+ scanner->opt[OPT_BR_X].desc = SANE_DESC_SCAN_BR_X;
+ scanner->opt[OPT_BR_X].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_BR_X].unit = SANE_UNIT_MM;
+ scanner->opt[OPT_BR_X].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_BR_X].constraint.range = &(scanner->device->x_range);
+ scanner->val[OPT_BR_X].w = scanner->device->x_range.max;
+
+ /* bottom-right y */
+ scanner->opt[OPT_BR_Y].name = SANE_NAME_SCAN_BR_Y;
+ scanner->opt[OPT_BR_Y].title = SANE_TITLE_SCAN_BR_Y;
+ scanner->opt[OPT_BR_Y].desc = SANE_DESC_SCAN_BR_Y;
+ scanner->opt[OPT_BR_Y].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_BR_Y].unit = SANE_UNIT_MM;
+ scanner->opt[OPT_BR_Y].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_BR_Y].constraint.range = &(scanner->device->y_range);
+ scanner->val[OPT_BR_Y].w = scanner->device->y_range.max;
+
+ /* "enhancement" group: */
+
+ scanner->opt[OPT_ENHANCEMENT_GROUP].title = "Enhancement";
+ scanner->opt[OPT_ENHANCEMENT_GROUP].desc = "";
+ scanner->opt[OPT_ENHANCEMENT_GROUP].type = SANE_TYPE_GROUP;
+ scanner->opt[OPT_ENHANCEMENT_GROUP].cap = 0;
+ scanner->opt[OPT_ENHANCEMENT_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* grayscale gamma vector */
+ scanner->opt[OPT_GAMMA_VECTOR].name = SANE_NAME_GAMMA_VECTOR;
+ scanner->opt[OPT_GAMMA_VECTOR].title = SANE_TITLE_GAMMA_VECTOR;
+ scanner->opt[OPT_GAMMA_VECTOR].desc = SANE_DESC_GAMMA_VECTOR;
+ scanner->opt[OPT_GAMMA_VECTOR].type = SANE_TYPE_INT;
+ scanner->opt[OPT_GAMMA_VECTOR].unit = SANE_UNIT_NONE;
+ scanner->opt[OPT_GAMMA_VECTOR].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->val[OPT_GAMMA_VECTOR].wa = scanner->gamma_table[0];
+ scanner->opt[OPT_GAMMA_VECTOR].constraint.range = &scanner->gamma_range;
+ scanner->opt[OPT_GAMMA_VECTOR].size =
+ scanner->gamma_length * sizeof (SANE_Word);
+ scanner->opt[OPT_GAMMA_VECTOR].cap |= SANE_CAP_INACTIVE;
+
+ /* red gamma vector */
+ scanner->opt[OPT_GAMMA_VECTOR_R].name = SANE_NAME_GAMMA_VECTOR_R;
+ scanner->opt[OPT_GAMMA_VECTOR_R].title = SANE_TITLE_GAMMA_VECTOR_R;
+ scanner->opt[OPT_GAMMA_VECTOR_R].desc = SANE_DESC_GAMMA_VECTOR_R;
+ scanner->opt[OPT_GAMMA_VECTOR_R].type = SANE_TYPE_INT;
+ scanner->opt[OPT_GAMMA_VECTOR_R].unit = SANE_UNIT_NONE;
+ scanner->opt[OPT_GAMMA_VECTOR_R].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->val[OPT_GAMMA_VECTOR_R].wa = scanner->gamma_table[1];
+ scanner->opt[OPT_GAMMA_VECTOR_R].constraint.range = &(scanner->gamma_range);
+ scanner->opt[OPT_GAMMA_VECTOR_R].size =
+ scanner->gamma_length * sizeof (SANE_Word);
+
+ /* green gamma vector */
+ scanner->opt[OPT_GAMMA_VECTOR_G].name = SANE_NAME_GAMMA_VECTOR_G;
+ scanner->opt[OPT_GAMMA_VECTOR_G].title = SANE_TITLE_GAMMA_VECTOR_G;
+ scanner->opt[OPT_GAMMA_VECTOR_G].desc = SANE_DESC_GAMMA_VECTOR_G;
+ scanner->opt[OPT_GAMMA_VECTOR_G].type = SANE_TYPE_INT;
+ scanner->opt[OPT_GAMMA_VECTOR_G].unit = SANE_UNIT_NONE;
+ scanner->opt[OPT_GAMMA_VECTOR_G].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->val[OPT_GAMMA_VECTOR_G].wa = scanner->gamma_table[2];
+ scanner->opt[OPT_GAMMA_VECTOR_G].constraint.range = &(scanner->gamma_range);
+ scanner->opt[OPT_GAMMA_VECTOR_G].size =
+ scanner->gamma_length * sizeof (SANE_Word);
+
+
+ /* blue gamma vector */
+ scanner->opt[OPT_GAMMA_VECTOR_B].name = SANE_NAME_GAMMA_VECTOR_B;
+ scanner->opt[OPT_GAMMA_VECTOR_B].title = SANE_TITLE_GAMMA_VECTOR_B;
+ scanner->opt[OPT_GAMMA_VECTOR_B].desc = SANE_DESC_GAMMA_VECTOR_B;
+ scanner->opt[OPT_GAMMA_VECTOR_B].type = SANE_TYPE_INT;
+ scanner->opt[OPT_GAMMA_VECTOR_B].unit = SANE_UNIT_NONE;
+ scanner->opt[OPT_GAMMA_VECTOR_B].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->val[OPT_GAMMA_VECTOR_B].wa = scanner->gamma_table[3];
+ scanner->opt[OPT_GAMMA_VECTOR_B].constraint.range = &(scanner->gamma_range);
+ scanner->opt[OPT_GAMMA_VECTOR_B].size =
+ scanner->gamma_length * sizeof (SANE_Word);
+
+ /* halftone pattern */
+ scanner->opt[OPT_HALFTONE_PATTERN].name = SANE_NAME_HALFTONE_PATTERN;
+ scanner->opt[OPT_HALFTONE_PATTERN].title = SANE_TITLE_HALFTONE_PATTERN;
+ scanner->opt[OPT_HALFTONE_PATTERN].desc = SANE_DESC_HALFTONE_PATTERN;
+ scanner->opt[OPT_HALFTONE_PATTERN].type = SANE_TYPE_STRING;
+ scanner->opt[OPT_HALFTONE_PATTERN].size =
+ max_string_size ((SANE_String_Const *) scanner->device->halftone_list);
+ scanner->opt[OPT_HALFTONE_PATTERN].constraint_type =
+ SANE_CONSTRAINT_STRING_LIST;
+ scanner->opt[OPT_HALFTONE_PATTERN].constraint.string_list =
+ (SANE_String_Const *) scanner->device->halftone_list;
+ scanner->val[OPT_HALFTONE_PATTERN].s =
+ (SANE_Char *) strdup (scanner->device->halftone_list[0]);
+ scanner->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE;
+
+ /* speed */
+ scanner->opt[OPT_SPEED].name = SANE_NAME_SCAN_SPEED;
+ scanner->opt[OPT_SPEED].title = SANE_TITLE_SCAN_SPEED;
+ scanner->opt[OPT_SPEED].desc = SANE_DESC_SCAN_SPEED;
+ scanner->opt[OPT_SPEED].type = SANE_TYPE_STRING;
+ scanner->opt[OPT_SPEED].size =
+ max_string_size ((SANE_String_Const *) scanner->device->speed_list);
+ scanner->opt[OPT_SPEED].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ scanner->opt[OPT_SPEED].constraint.string_list =
+ (SANE_String_Const *) scanner->device->speed_list;
+ scanner->val[OPT_SPEED].s =
+ (SANE_Char *) strdup (scanner->device->speed_list[0]);
+
+ /* lineart threshold */
+ scanner->opt[OPT_THRESHOLD].name = SANE_NAME_THRESHOLD;
+ scanner->opt[OPT_THRESHOLD].title = SANE_TITLE_THRESHOLD;
+ scanner->opt[OPT_THRESHOLD].desc = SANE_DESC_THRESHOLD;
+ scanner->opt[OPT_THRESHOLD].type = SANE_TYPE_FIXED;
+ scanner->opt[OPT_THRESHOLD].unit = SANE_UNIT_PERCENT;
+ scanner->opt[OPT_THRESHOLD].constraint_type = SANE_CONSTRAINT_RANGE;
+ scanner->opt[OPT_THRESHOLD].constraint.range = &percentage_range_100;
+ scanner->val[OPT_THRESHOLD].w = SANE_FIX (50);
+ scanner->opt[OPT_THRESHOLD].cap |= SANE_CAP_INACTIVE;
+
+ /* "advanced" group: */
+
+ scanner->opt[OPT_ADVANCED_GROUP].title = "Advanced";
+ scanner->opt[OPT_ADVANCED_GROUP].desc = "";
+ scanner->opt[OPT_ADVANCED_GROUP].type = SANE_TYPE_GROUP;
+ scanner->opt[OPT_ADVANCED_GROUP].cap = SANE_CAP_ADVANCED;
+ scanner->opt[OPT_ADVANCED_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* preview */
+ scanner->opt[OPT_PREVIEW].name = SANE_NAME_PREVIEW;
+ scanner->opt[OPT_PREVIEW].title = SANE_TITLE_PREVIEW;
+ scanner->opt[OPT_PREVIEW].desc = SANE_DESC_PREVIEW;
+ scanner->opt[OPT_PREVIEW].type = SANE_TYPE_BOOL;
+ scanner->val[OPT_PREVIEW].w = SANE_FALSE;
+
+
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/*------------------------- PIE POWER SAVE -----------------------------*/
+
+static SANE_Status
+pie_power_save (Pie_Scanner * scanner, int time)
+{
+ unsigned char buffer[128];
+ size_t size;
+ SANE_Status status;
+ unsigned char *data;
+
+ DBG (DBG_proc, "pie_power_save: %d min\n", time);
+
+ size = 6;
+
+ set_write_length (swrite.cmd, size);
+
+ memcpy (buffer, swrite.cmd, swrite.size);
+
+ data = buffer + swrite.size;
+ memset (data, 0, size);
+
+ set_command (data, SET_POWER_SAVE_CONTROL);
+ set_data_length (data, size - 4);
+ data[4] = time & 0x7f;
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, buffer, swrite.size + size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error, "pie_power_save: write command returned status %s\n",
+ sane_strstatus (status));
+ }
+
+ return status;
+}
+
+/*------------------------- PIE SEND EXPOSURE ONE -----------------------------*/
+
+
+static SANE_Status
+pie_send_exposure_one (Pie_Scanner * scanner, int filter, int value)
+{
+ unsigned char buffer[128];
+ size_t size;
+ SANE_Status status;
+ unsigned char *data;
+
+ DBG (DBG_proc, "pie_send_exposure_one\n");
+
+ size = 8;
+
+ set_write_length (swrite.cmd, size);
+
+ memcpy (buffer, swrite.cmd, swrite.size);
+
+ data = buffer + swrite.size;
+ memset (data, 0, size);
+
+ set_command (data, SET_EXP_TIME);
+ set_data_length (data, size - 4);
+
+ data[4] = filter;
+
+ set_data (data, 6, (int) value, 2);
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, buffer, swrite.size + size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error,
+ "pie_send_exposure_one: write command returned status %s\n",
+ sane_strstatus (status));
+ }
+
+ return status;
+}
+
+/*------------------------- PIE SEND EXPOSURE -----------------------------*/
+
+static SANE_Status
+pie_send_exposure (Pie_Scanner * scanner)
+{
+ SANE_Status status;
+
+ DBG (DBG_proc, "pie_send_exposure\n");
+
+ status = pie_send_exposure_one (scanner, FILTER_RED, 100);
+ if (status)
+ return status;
+
+ status = pie_send_exposure_one (scanner, FILTER_GREEN, 100);
+ if (status)
+ return status;
+
+ status = pie_send_exposure_one (scanner, FILTER_BLUE, 100);
+ if (status)
+ return status;
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/*------------------------- PIE SEND HIGHLIGHT/SHADOW ONE -----------------------------*/
+
+static SANE_Status
+pie_send_highlight_shadow_one (Pie_Scanner * scanner, int filter,
+ int highlight, int shadow)
+{
+ unsigned char buffer[128];
+ size_t size;
+ SANE_Status status;
+ unsigned char *data;
+
+ DBG (DBG_proc, "pie_send_highlight_shadow_one\n");
+
+ size = 8;
+
+ set_write_length (swrite.cmd, size);
+
+ memcpy (buffer, swrite.cmd, swrite.size);
+
+ data = buffer + swrite.size;
+ memset (data, 0, size);
+
+ set_command (data, SET_EXP_TIME);
+ set_data_length (data, size - 4);
+
+ data[4] = filter;
+
+ data[6] = highlight;
+ data[7] = shadow;
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, buffer, swrite.size + size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error,
+ "pie_send_highlight_shadow_one: write command returned status %s\n",
+ sane_strstatus (status));
+ }
+
+ return status;
+}
+
+/*------------------------- PIE SEND HIGHLIGHT/SHADOW -----------------------------*/
+
+static SANE_Status
+pie_send_highlight_shadow (Pie_Scanner * scanner)
+{
+ SANE_Status status;
+
+ DBG (DBG_proc, "pie_send_highlight_shadow\n");
+
+ status = pie_send_highlight_shadow_one (scanner, FILTER_RED, 100, 0);
+ if (status)
+ return status;
+
+ status = pie_send_highlight_shadow_one (scanner, FILTER_GREEN, 100, 0);
+ if (status)
+ return status;
+
+ status = pie_send_highlight_shadow_one (scanner, FILTER_BLUE, 100, 0);
+ if (status)
+ return status;
+
+ return SANE_STATUS_GOOD;
+}
+
+/*------------------------- PIE PERFORM CAL ----------------------------*/
+
+static SANE_Status
+pie_perform_cal (Pie_Scanner * scanner, int cal_index)
+{
+ long *red_result;
+ long *green_result;
+ long *blue_result;
+ long *neutral_result;
+ long *result = NULL;
+ int rcv_length, send_length;
+ int rcv_lines, rcv_bits, send_bits;
+ int pixels_per_line;
+ int i;
+ unsigned char *rcv_buffer, *rcv_ptr;
+ unsigned char *send_buffer, *send_ptr;
+ size_t size;
+ int fullscale;
+ int cal_limit;
+ int k;
+ int filter;
+ SANE_Status status;
+
+ DBG (DBG_proc, "pie_perform_cal\n");
+
+ pixels_per_line = scanner->device->cal_info[cal_index].pixels_per_line;
+ rcv_length = pixels_per_line;
+ send_length = pixels_per_line;
+
+ rcv_bits = scanner->device->cal_info[cal_index].receive_bits;
+ if (rcv_bits > 8)
+ rcv_length *= 2; /* 2 bytes / sample */
+
+ send_bits = scanner->device->cal_info[cal_index].send_bits;
+ if (send_bits > 8)
+ send_length *= 2; /* 2 bytes / sample */
+
+ rcv_lines = scanner->device->cal_info[cal_index].num_lines;
+
+ send_length += 2; /* space for filter at start */
+
+ if (scanner->colormode == RGB)
+ {
+ rcv_lines *= 3;
+ send_length *= 3;
+ rcv_length += 2; /* 2 bytes for index at front of data (only in RGB??) */
+ }
+
+ send_length += 4; /* space for header at start of data */
+
+ /* alllocate buffers for the receive data, the result buffers, and for the send data */
+ rcv_buffer = (unsigned char *) malloc (rcv_length);
+
+ red_result = (long *) calloc (pixels_per_line, sizeof (long));
+ green_result = (long *) calloc (pixels_per_line, sizeof (long));
+ blue_result = (long *) calloc (pixels_per_line, sizeof (long));
+ neutral_result = (long *) calloc (pixels_per_line, sizeof (long));
+
+ if (!rcv_buffer || !red_result || !green_result || !blue_result
+ || !neutral_result)
+ {
+ /* at least one malloc failed, so free all buffers (free accepts NULL) */
+ free (rcv_buffer);
+ free (red_result);
+ free (green_result);
+ free (blue_result);
+ free (neutral_result);
+ return SANE_STATUS_NO_MEM;
+ }
+
+ /* read the cal data a line at a time, and accumulate into the result arrays */
+ while (rcv_lines--)
+ {
+ /* TUR */
+ status = pie_wait_scanner (scanner);
+ if (status)
+ {
+ free (rcv_buffer);
+ free (red_result);
+ free (green_result);
+ free (blue_result);
+ free (neutral_result);
+ return status;
+ }
+
+ set_read_length (sread.cmd, 1);
+ size = rcv_length;
+
+ DBG (DBG_info, "pie_perform_cal: reading 1 line (%lu bytes)\n", (u_long) size);
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, sread.cmd, sread.size, rcv_buffer,
+ &size);
+
+ if (status)
+ {
+ DBG (DBG_error,
+ "pie_perform_cal: read command returned status %s\n",
+ sane_strstatus (status));
+ free (rcv_buffer);
+ free (red_result);
+ free (green_result);
+ free (blue_result);
+ free (neutral_result);
+ return status;
+ }
+
+ DBG_DUMP (DBG_dump, rcv_buffer, 32);
+
+ /* which result buffer does this line belong to? */
+ if (scanner->colormode == RGB)
+ {
+ if (*rcv_buffer == 'R')
+ result = red_result;
+ else if (*rcv_buffer == 'G')
+ result = green_result;
+ else if (*rcv_buffer == 'B')
+ result = blue_result;
+ else if (*rcv_buffer == 'N')
+ result = neutral_result;
+ else
+ {
+ DBG (DBG_error, "pie_perform_cal: invalid index byte (%02x)\n",
+ *rcv_buffer);
+ DBG_DUMP (DBG_error, rcv_buffer, 32);
+ free (rcv_buffer);
+ free (red_result);
+ free (green_result);
+ free (blue_result);
+ free (neutral_result);
+ return SANE_STATUS_INVAL;
+ }
+ rcv_ptr = rcv_buffer + 2;
+ }
+ else
+ {
+ /* monochrome - no bytes indicating filter here */
+ result = neutral_result;
+ rcv_ptr = rcv_buffer;
+ }
+
+ /* now add the values in this line to the result array */
+ for (i = 0; i < pixels_per_line; i++)
+ {
+ result[i] += *rcv_ptr++;
+ if (rcv_bits > 8)
+ {
+ result[i] += (*rcv_ptr++) << 8;
+ }
+ }
+ }
+
+ /* got all the cal data, now process it ready to send back */
+ free (rcv_buffer);
+ send_buffer = (unsigned char *) malloc (send_length + swrite.size);
+
+ if (!send_buffer)
+ {
+ free (red_result);
+ free (green_result);
+ free (blue_result);
+ free (neutral_result);
+ return SANE_STATUS_NO_MEM;
+ }
+
+ rcv_lines = scanner->device->cal_info[cal_index].num_lines;
+ fullscale = (1 << rcv_bits) - 1;
+ cal_limit = fullscale / (1 << scanner->device->inquiry_cal_eqn);
+ k = (1 << scanner->device->inquiry_cal_eqn) - 1;
+
+ /* set up scsi command and data */
+ size = send_length;
+
+ memcpy (send_buffer, swrite.cmd, swrite.size);
+ set_write_length (send_buffer, size);
+
+ set_command (send_buffer + swrite.size, SEND_CAL_DATA);
+ set_data_length (send_buffer + swrite.size, size - 4);
+
+ send_ptr = send_buffer + swrite.size + 4;
+
+ for (filter = FILTER_NEUTRAL; filter <= FILTER_BLUE; filter <<= 1)
+ {
+
+ /* only send data for filter we expect to send */
+ if (!(filter & scanner->cal_filter))
+ continue;
+
+ set_data (send_ptr, 0, filter, 2);
+ send_ptr += 2;
+
+ if (scanner->colormode == RGB)
+ {
+ switch (filter)
+ {
+ case FILTER_RED:
+ result = red_result;
+ break;
+
+ case FILTER_GREEN:
+ result = green_result;
+ break;
+
+ case FILTER_BLUE:
+ result = blue_result;
+ break;
+
+ case FILTER_NEUTRAL:
+ result = neutral_result;
+ break;
+ }
+ }
+ else
+ result = neutral_result;
+
+ /* for each pixel */
+ for (i = 0; i < pixels_per_line; i++)
+ {
+ long x;
+
+ /* make average */
+ x = result[i] / rcv_lines;
+
+ /* ensure not overflowed */
+ if (x > fullscale)
+ x = fullscale;
+
+ /* process according to required calibration equation */
+ if (scanner->device->inquiry_cal_eqn)
+ {
+ if (x <= cal_limit)
+ x = fullscale;
+ else
+ x = ((fullscale - x) * fullscale) / (x * k);
+ }
+
+ if (rcv_bits > send_bits)
+ x >>= (rcv_bits - send_bits);
+ else if (send_bits > rcv_bits)
+ x <<= (send_bits - rcv_bits);
+
+ /* put result into send buffer */
+ *send_ptr++ = x;
+ if (send_bits > 8)
+ *send_ptr++ = x >> 8;
+ }
+ }
+
+ /* now send the data back to scanner */
+
+ /* TUR */
+ status = pie_wait_scanner (scanner);
+ if (status)
+ {
+ free (red_result);
+ free (green_result);
+ free (blue_result);
+ free (neutral_result);
+ free (send_buffer);
+ return status;
+ }
+
+ DBG (DBG_info, "pie_perform_cal: sending cal data (%lu bytes)\n", (u_long) size);
+ DBG_DUMP (DBG_dump, send_buffer, 64);
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, send_buffer, swrite.size + size, NULL,
+ NULL);
+ if (status)
+ {
+ DBG (DBG_error, "pie_perform_cal: write command returned status %s\n",
+ sane_strstatus (status));
+ free (red_result);
+ free (green_result);
+ free (blue_result);
+ free (neutral_result);
+ free (send_buffer);
+ return status;
+ }
+
+ free (red_result);
+ free (green_result);
+ free (blue_result);
+ free (neutral_result);
+ free (send_buffer);
+
+ return SANE_STATUS_GOOD;
+}
+
+/*------------------------- PIE DO CAL -----------------------------*/
+
+static SANE_Status
+pie_do_cal (Pie_Scanner * scanner)
+{
+ SANE_Status status;
+ int cal_index;
+
+ DBG (DBG_proc, "pie_do_cal\n");
+
+ if (scanner->device->inquiry_scan_capability & INQ_CAP_EXT_CAL)
+ {
+ for (cal_index = 0; cal_index < scanner->device->cal_info_count;
+ cal_index++)
+ if (scanner->device->cal_info[cal_index].cal_type ==
+ scanner->cal_mode)
+ {
+ status = pie_perform_cal (scanner, cal_index);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ }
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+/*------------------------- PIE DWNLD GAMMA ONE -----------------------------*/
+
+static SANE_Status
+pie_dwnld_gamma_one (Pie_Scanner * scanner, int filter, SANE_Int * table)
+{
+ unsigned char *buffer;
+ size_t size;
+ SANE_Status status;
+ unsigned char *data;
+ int i;
+
+ DBG (DBG_proc, "pie_dwnld_gamma_one\n");
+
+ /* TUR */
+ status = pie_wait_scanner (scanner);
+ if (status)
+ {
+ return status;
+ }
+
+ if (scanner->device->inquiry_gamma_bits > 8)
+ size = scanner->gamma_length * 2 + 6;
+ else
+ size = scanner->gamma_length + 6;
+
+ buffer = malloc (size + swrite.size);
+ if (!buffer)
+ return SANE_STATUS_NO_MEM;
+
+ set_write_length (swrite.cmd, size);
+
+ memcpy (buffer, swrite.cmd, swrite.size);
+
+ data = buffer + swrite.size;
+ memset (data, 0, size);
+
+ set_command (data, DWNLD_GAMMA_TABLE);
+ set_data_length (data, size - 4);
+
+ data[4] = filter;
+
+ for (i = 0; i < scanner->gamma_length; i++)
+ {
+ if (scanner->device->inquiry_gamma_bits > 8)
+ {
+ set_data (data, 6 + 2 * i, table ? table[i] : i, 2);
+ }
+ else
+ {
+ set_data (data, 6 + i, table ? table[i] : i, 1);
+ }
+ }
+
+ DBG_DUMP (DBG_dump, data, 128);
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, buffer, swrite.size + size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error,
+ "pie_dwnld_gamma_one: write command returned status %s\n",
+ sane_strstatus (status));
+ }
+
+ free (buffer);
+
+ return status;
+}
+
+/*------------------------- PIE DWNLD GAMMA -----------------------------*/
+
+static SANE_Status
+pie_dwnld_gamma (Pie_Scanner * scanner)
+{
+ SANE_Status status;
+
+ DBG (DBG_proc, "pie_dwnld_gamma\n");
+
+ if (scanner->colormode == RGB)
+ {
+ status =
+ pie_dwnld_gamma_one (scanner, FILTER_RED, scanner->gamma_table[1]);
+ if (status)
+ return status;
+
+
+ status =
+ pie_dwnld_gamma_one (scanner, FILTER_GREEN, scanner->gamma_table[2]);
+ if (status)
+ return status;
+
+ status =
+ pie_dwnld_gamma_one (scanner, FILTER_BLUE, scanner->gamma_table[3]);
+ if (status)
+ return status;
+ }
+ else
+ {
+ SANE_Int *table;
+
+ /* if lineart or half tone, force gamma to be one to one by passing NULL */
+ if (scanner->colormode == GRAYSCALE)
+ table = scanner->gamma_table[0];
+ else
+ table = NULL;
+
+ status = pie_dwnld_gamma_one (scanner, FILTER_GREEN, table);
+ if (status)
+ return status;
+ }
+
+ usleep (DOWNLOAD_GAMMA_WAIT_TIME);
+
+ return SANE_STATUS_GOOD;
+}
+
+/*------------------------- PIE SET WINDOW -----------------------------*/
+
+static SANE_Status
+pie_set_window (Pie_Scanner * scanner)
+{
+ unsigned char buffer[128];
+ size_t size;
+ SANE_Status status;
+ unsigned char *data;
+ double x, dpmm;
+
+ DBG (DBG_proc, "pie_set_window\n");
+
+ size = 14;
+
+ set_write_length (swrite.cmd, size);
+
+ memcpy (buffer, swrite.cmd, swrite.size);
+
+ data = buffer + swrite.size;
+ memset (data, 0, size);
+
+ set_command (data, SET_SCAN_FRAME);
+ set_data_length (data, size - 4);
+
+ data[4] = 0x80;
+ if (scanner->colormode == HALFTONE)
+ data[4] |= 0x40;
+
+ dpmm = (double) scanner->device->inquiry_pixel_resolution / MM_PER_INCH;
+
+ x = SANE_UNFIX (scanner->val[OPT_TL_X].w) * dpmm;
+ set_data (data, 6, (int) x, 2);
+ DBG (DBG_info, "TL_X: %d\n", (int) x);
+
+ x = SANE_UNFIX (scanner->val[OPT_TL_Y].w) * dpmm;
+ set_data (data, 8, (int) x, 2);
+ DBG (DBG_info, "TL_Y: %d\n", (int) x);
+
+ x = SANE_UNFIX (scanner->val[OPT_BR_X].w) * dpmm;
+ set_data (data, 10, (int) x, 2);
+ DBG (DBG_info, "BR_X: %d\n", (int) x);
+
+ x = SANE_UNFIX (scanner->val[OPT_BR_Y].w) * dpmm;
+ set_data (data, 12, (int) x, 2);
+ DBG (DBG_info, "BR_Y: %d\n", (int) x);
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, buffer, swrite.size + size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error, "pie_set_window: write command returned status %s\n",
+ sane_strstatus (status));
+ }
+
+ return status;
+}
+
+
+/*------------------------- PIE MODE SELECT -----------------------------*/
+
+static SANE_Status
+pie_mode_select (Pie_Scanner * scanner)
+{
+
+ SANE_Status status;
+ unsigned char buffer[128];
+ size_t size;
+ unsigned char *data;
+ int i;
+
+ DBG (DBG_proc, "pie_mode_select\n");
+
+ size = 14;
+
+ set_mode_length (smode.cmd, size);
+
+ memcpy (buffer, smode.cmd, smode.size);
+
+ data = buffer + smode.size;
+ memset (data, 0, size);
+
+ /* size of data */
+ data[1] = size - 2;
+
+ /* set resolution required */
+ set_data (data, 2, scanner->resolution, 2);
+
+ /* set color filter and color depth */
+ switch (scanner->colormode)
+ {
+ case RGB:
+ if (scanner->device->inquiry_filters & INQ_ONE_PASS_COLOR)
+ {
+ data[4] = INQ_ONE_PASS_COLOR;
+ scanner->cal_filter = FILTER_RED | FILTER_GREEN | FILTER_BLUE;
+ }
+ else
+ {
+ DBG (DBG_error,
+ "pie_mode_select: support for multipass color not yet implemented\n");
+ return SANE_STATUS_UNSUPPORTED;
+ }
+ data[5] = INQ_COLOR_DEPTH_8;
+ break;
+
+ case GRAYSCALE:
+ case LINEART:
+ case HALFTONE:
+ /* choose which filter to use for monochrome mode */
+ if (scanner->device->inquiry_filters & INQ_FILTER_NEUTRAL)
+ {
+ data[4] = FILTER_NEUTRAL;
+ scanner->cal_filter = FILTER_NEUTRAL;
+ }
+ else if (scanner->device->inquiry_filters & INQ_FILTER_GREEN)
+ {
+ data[4] = FILTER_GREEN;
+ scanner->cal_filter = FILTER_GREEN;
+ }
+ else if (scanner->device->inquiry_filters & INQ_FILTER_RED)
+ {
+ data[4] = FILTER_RED;
+ scanner->cal_filter = FILTER_RED;
+ }
+ else if (scanner->device->inquiry_filters & INQ_FILTER_BLUE)
+ {
+ data[4] = FILTER_BLUE;
+ scanner->cal_filter = FILTER_BLUE;
+ }
+ else
+ {
+ DBG (DBG_error,
+ "pie_mode_select: scanner doesn't appear to support monochrome\n");
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ if (scanner->colormode == GRAYSCALE)
+ data[5] = INQ_COLOR_DEPTH_8;
+ else
+ data[5] = INQ_COLOR_DEPTH_1;
+ break;
+ }
+
+ /* choose color packing method */
+ if (scanner->device->inquiry_color_format & INQ_COLOR_FORMAT_LINE)
+ data[6] = INQ_COLOR_FORMAT_LINE;
+ else if (scanner->device->inquiry_color_format & INQ_COLOR_FORMAT_INDEX)
+ data[6] = INQ_COLOR_FORMAT_INDEX;
+ else
+ {
+ DBG (DBG_error,
+ "pie_mode_select: support for pixel packing not yet implemented\n");
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ /* choose data format */
+ if (scanner->device->inquiry_image_format & INQ_IMG_FMT_INTEL)
+ data[8] = INQ_IMG_FMT_INTEL;
+ else
+ {
+ DBG (DBG_error,
+ "pie_mode_select: support for Motorola format not yet implemented\n");
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ /* set required speed */
+ i = 0;
+ while (scanner->device->speed_list[i] != NULL)
+ {
+ if (strcmp (scanner->device->speed_list[i], scanner->val[OPT_SPEED].s)
+ == 0)
+ break;
+ i++;
+ }
+
+ if (scanner->device->speed_list[i] == NULL)
+ data[9] = 0;
+ else
+ data[9] = i;
+
+ scanner->cal_mode = CAL_MODE_FLATBED;
+
+ /* if preview supported, ask for preview, limit resolution to max for fast preview */
+ if (scanner->val[OPT_PREVIEW].w
+ && (scanner->device->inquiry_scan_capability & INQ_CAP_FAST_PREVIEW))
+ {
+ DBG (DBG_info, "pie_mode_select: setting preview\n");
+ scanner->cal_mode |= CAL_MODE_PREVIEW;
+ data[9] |= INQ_CAP_FAST_PREVIEW;
+ data[9] &= ~INQ_CAP_SPEEDS;
+ if (scanner->resolution > scanner->device->inquiry_fast_preview_res)
+ set_data (data, 2, scanner->device->inquiry_fast_preview_res, 2);
+ }
+
+
+ /* set required halftone pattern */
+ i = 0;
+ while (scanner->device->halftone_list[i] != NULL)
+ {
+ if (strcmp
+ (scanner->device->halftone_list[i],
+ scanner->val[OPT_HALFTONE_PATTERN].s) == 0)
+ break;
+ i++;
+ }
+
+ if (scanner->device->halftone_list[i] == NULL)
+ data[12] = 0; /* halftone pattern */
+ else
+ data[12] = i;
+
+ data[13] = SANE_UNFIX (scanner->val[OPT_THRESHOLD].w) * 255 / 100; /* lineart threshold */
+
+ DBG (DBG_info, "pie_mode_select: speed %02x\n", data[9]);
+ DBG (DBG_info, "pie_mode_select: halftone %d\n", data[12]);
+ DBG (DBG_info, "pie_mode_select: threshold %02x\n", data[13]);
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, buffer, smode.size + size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error, "pie_mode_select: write command returned status %s\n",
+ sane_strstatus (status));
+ }
+
+ return status;
+}
+
+
+/*------------------------- PIE SCAN -----------------------------*/
+
+static SANE_Status
+pie_scan (Pie_Scanner * scanner, int start)
+{
+ SANE_Status status;
+
+ DBG (DBG_proc, "pie_scan\n");
+
+ /* TUR */
+ status = pie_wait_scanner (scanner);
+ if (status)
+ {
+ return status;
+ }
+
+ set_scan_cmd (scan.cmd, start);
+
+ do
+ {
+ status = sanei_scsi_cmd (scanner->sfd, scan.cmd, scan.size, NULL, NULL);
+ if (status)
+ {
+ DBG (DBG_error, "pie_scan: write command returned status %s\n",
+ sane_strstatus (status));
+ usleep (SCAN_WARMUP_WAIT_TIME);
+ }
+ }
+ while (start && status);
+
+ usleep (SCAN_WAIT_TIME);
+
+ return status;
+}
+
+
+/* --------------------------------------- PIE WAIT SCANNER -------------------------- */
+
+
+static SANE_Status
+pie_wait_scanner (Pie_Scanner * scanner)
+{
+ SANE_Status status;
+ int cnt = 0;
+
+ DBG (DBG_proc, "wait_scanner\n");
+
+ do
+ {
+ if (cnt > 100) /* maximal 100 * 0.5 sec = 50 sec */
+ {
+ DBG (DBG_warning, "scanner does not get ready\n");
+ return -1;
+ }
+ /* test unit ready */
+ status =
+ sanei_scsi_cmd (scanner->sfd, test_unit_ready.cmd,
+ test_unit_ready.size, NULL, NULL);
+ cnt++;
+
+ if (status)
+ {
+ if (cnt == 1)
+ {
+ DBG (DBG_info2, "scanner reports %s, waiting ...\n",
+ sane_strstatus (status));
+ }
+
+ usleep (TUR_WAIT_TIME);
+ }
+ }
+ while (status != SANE_STATUS_GOOD);
+
+ DBG (DBG_info, "scanner ready\n");
+
+
+ return status;
+}
+
+
+/* -------------------------------------- PIE GET PARAMS -------------------------- */
+
+
+static SANE_Status
+pie_get_params (Pie_Scanner * scanner)
+{
+ SANE_Status status;
+ size_t size;
+ unsigned char buffer[128];
+
+ DBG (DBG_proc, "pie_get_params\n");
+
+ status = pie_wait_scanner (scanner);
+ if (status)
+ return status;
+
+ if (scanner->device->inquiry_image_format & INQ_IMG_FMT_OKLINE)
+ size = 16;
+ else
+
+ size = 14;
+
+ set_param_length (param.cmd, size);
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, param.cmd, param.size, buffer, &size);
+
+ if (status)
+ {
+ DBG (DBG_error, "pie_get_params: command returned status %s\n",
+ sane_strstatus (status));
+ }
+ else
+ {
+ DBG (DBG_info, "Scan Width: %d\n", get_param_scan_width (buffer));
+ DBG (DBG_info, "Scan Lines: %d\n", get_param_scan_lines (buffer));
+ DBG (DBG_info, "Scan bytes: %d\n", get_param_scan_bytes (buffer));
+
+ DBG (DBG_info, "Offset 1: %d\n",
+ get_param_scan_filter_offset1 (buffer));
+ DBG (DBG_info, "Offset 2: %d\n",
+ get_param_scan_filter_offset2 (buffer));
+ DBG (DBG_info, "Scan period: %d\n", get_param_scan_period (buffer));
+ DBG (DBG_info, "Xfer rate: %d\n", get_param_scsi_xfer_rate (buffer));
+ if (scanner->device->inquiry_image_format & INQ_IMG_FMT_OKLINE)
+ DBG (DBG_info, "Avail lines: %d\n",
+ get_param_scan_available_lines (buffer));
+
+ scanner->filter_offset1 = get_param_scan_filter_offset1 (buffer);
+ scanner->filter_offset2 = get_param_scan_filter_offset2 (buffer);
+ scanner->bytes_per_line = get_param_scan_bytes (buffer);
+
+ scanner->params.pixels_per_line = get_param_scan_width (buffer);
+ scanner->params.lines = get_param_scan_lines (buffer);
+
+ switch (scanner->colormode)
+ {
+ case RGB:
+ scanner->params.format = SANE_FRAME_RGB;
+ scanner->params.depth = 8;
+ scanner->params.bytes_per_line = 3 * get_param_scan_bytes (buffer);
+ break;
+
+ case GRAYSCALE:
+ scanner->params.format = SANE_FRAME_GRAY;
+ scanner->params.depth = 8;
+ scanner->params.bytes_per_line = get_param_scan_bytes (buffer);
+ break;
+
+ case HALFTONE:
+ case LINEART:
+ scanner->params.format = SANE_FRAME_GRAY;
+ scanner->params.depth = 1;
+ scanner->params.bytes_per_line = get_param_scan_bytes (buffer);
+ break;
+ }
+
+ scanner->params.last_frame = 0;
+ }
+
+ return status;
+}
+
+
+/* -------------------------------------- PIE GRAB SCANNER -------------------------- */
+
+
+static SANE_Status
+pie_grab_scanner (Pie_Scanner * scanner)
+{
+ SANE_Status status;
+
+ DBG (DBG_proc, "grab_scanner\n");
+
+
+ status = pie_wait_scanner (scanner);
+ if (status)
+ return status;
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, reserve_unit.cmd, reserve_unit.size, NULL,
+ NULL);
+
+
+ if (status)
+ {
+ DBG (DBG_error, "pie_grab_scanner: command returned status %s\n",
+ sane_strstatus (status));
+ }
+ else
+ {
+ DBG (DBG_info, "scanner reserved\n");
+ }
+
+ return status;
+}
+
+
+/* ------------------------------------ PIE GIVE SCANNER -------------------------- */
+
+
+static SANE_Status
+pie_give_scanner (Pie_Scanner * scanner)
+{
+ SANE_Status status;
+
+ DBG (DBG_info2, "trying to release scanner ...\n");
+
+ status =
+ sanei_scsi_cmd (scanner->sfd, release_unit.cmd, release_unit.size, NULL,
+ NULL);
+ if (status)
+ {
+ DBG (DBG_error, "pie_give_scanner: command returned status %s\n",
+ sane_strstatus (status));
+ }
+ else
+ {
+ DBG (DBG_info, "scanner released\n");
+ }
+ return status;
+}
+
+
+/* ------------------- PIE READER PROCESS INDEXED ------------------- */
+
+static int
+pie_reader_process_indexed (Pie_Scanner * scanner, FILE * fp)
+{
+ int status;
+ int lines;
+ unsigned char *buffer, *reorder = NULL;
+ unsigned char *red_buffer = NULL, *green_buffer = NULL;
+ unsigned char *red_in = NULL, *red_out = NULL;
+ unsigned char *green_in = NULL, *green_out = NULL;
+ int red_size = 0, green_size = 0;
+ int bytes_per_line;
+ int red_count = 0, green_count = 0;
+
+ size_t size;
+
+ DBG (DBG_read, "reading %d lines of %d bytes/line (indexed)\n",
+ scanner->params.lines, scanner->params.bytes_per_line);
+
+ lines = scanner->params.lines;
+ bytes_per_line = scanner->bytes_per_line;
+
+ /* allocate receive buffer */
+ buffer = malloc (bytes_per_line + 2);
+ if (!buffer)
+ {
+ return SANE_STATUS_NO_MEM;
+ }
+
+ /* allocate deskew buffers for RGB mode */
+ if (scanner->colormode == RGB)
+ {
+ lines *= 3;
+
+ red_size = bytes_per_line * (scanner->filter_offset1 +
+ scanner->filter_offset2 + 2);
+ green_size = bytes_per_line * (scanner->filter_offset2 + 2);
+
+ DBG (DBG_info2,
+ "pie_reader_process_indexed: alloc %d lines (%d bytes) for red buffer\n",
+ red_size / bytes_per_line, red_size);
+ DBG (DBG_info2,
+ "pie_reader_process_indexed: alloc %d lines (%d bytes) for green buffer\n",
+ green_size / bytes_per_line, green_size);
+
+ reorder = malloc (scanner->params.bytes_per_line);
+ red_buffer = malloc (red_size);
+ green_buffer = malloc (green_size);
+
+ if (!reorder || !red_buffer || !green_buffer)
+ {
+ free (buffer);
+ free (reorder);
+ free (red_buffer);
+ free (green_buffer);
+ return SANE_STATUS_NO_MEM;
+ }
+
+ red_in = red_out = red_buffer;
+ green_in = green_out = green_buffer;
+ }
+
+ while (lines--)
+ {
+ set_read_length (sread.cmd, 1);
+ size = bytes_per_line + 2;
+
+ do
+ {
+ status =
+ sanei_scsi_cmd (scanner->sfd, sread.cmd, sread.size, buffer,
+ &size);
+ }
+ while (status);
+
+ DBG_DUMP (DBG_dump, buffer, 64);
+
+ if (scanner->colormode == RGB)
+ {
+ /* we're assuming that we get red before green before blue here */
+ switch (*buffer)
+ {
+ case 'R':
+ /* copy to red buffer */
+ memcpy (red_in, buffer + 2, bytes_per_line);
+
+ /* advance in pointer, and check for wrap */
+ red_in += bytes_per_line;
+ if (red_in >= (red_buffer + red_size))
+ red_in = red_buffer;
+
+ /* increment red line count */
+ red_count++;
+ DBG (DBG_info2,
+ "pie_reader_process_indexed: got a red line (%d)\n",
+ red_count);
+ break;
+
+ case 'G':
+ /* copy to green buffer */
+ memcpy (green_in, buffer + 2, bytes_per_line);
+
+ /* advance in pointer, and check for wrap */
+ green_in += bytes_per_line;
+ if (green_in >= (green_buffer + green_size))
+ green_in = green_buffer;
+
+ /* increment green line count */
+ green_count++;
+ DBG (DBG_info2,
+ "pie_reader_process_indexed: got a green line (%d)\n",
+ green_count);
+ break;
+
+ case 'B':
+ /* check we actually have red and green data available */
+ if (!red_count || !green_count)
+ {
+ DBG (DBG_error,
+ "pie_reader_process_indexed: deskew buffer empty (%d %d)\n",
+ red_count, green_count);
+ return SANE_STATUS_INVAL;
+ }
+ red_count--;
+ green_count--;
+
+ DBG (DBG_info2,
+ "pie_reader_process_indexed: got a blue line\n");
+
+ {
+ int i;
+ unsigned char *red, *green, *blue, *dest;
+
+ /* now pack the pixels lines into RGB format */
+ dest = reorder;
+ red = red_out;
+ green = green_out;
+ blue = buffer + 2;
+
+ for (i = bytes_per_line; i > 0; i--)
+ {
+ *dest++ = *red++;
+ *dest++ = *green++;
+ *dest++ = *blue++;
+ }
+ fwrite (reorder, 1, scanner->params.bytes_per_line, fp);
+
+ /* advance out pointers, and check for wrap */
+ red_out += bytes_per_line;
+ if (red_out >= (red_buffer + red_size))
+ red_out = red_buffer;
+ green_out += bytes_per_line;
+ if (green_out >= (green_buffer + green_size))
+ green_out = green_buffer;
+ }
+ break;
+
+ default:
+ DBG (DBG_error,
+ "pie_reader_process_indexed: bad filter index\n");
+ }
+ }
+ else
+ {
+ DBG (DBG_info2,
+ "pie_reader_process_indexed: got a line (%lu bytes)\n", (u_long) size);
+
+ /* just send the data on, assume filter bytes not present as per calibration case */
+ fwrite (buffer, 1, scanner->params.bytes_per_line, fp);
+ }
+ }
+
+ free (buffer);
+ free (reorder);
+ free (red_buffer);
+ free (green_buffer);
+ return 0;
+}
+
+/* --------------------------------- PIE READER PROCESS ------------------------ */
+
+static int
+pie_reader_process (Pie_Scanner * scanner, FILE * fp)
+{
+ int status;
+ int lines;
+ unsigned char *buffer, *reorder;
+ size_t size;
+
+ DBG (DBG_read, "reading %d lines of %d bytes/line\n", scanner->params.lines,
+ scanner->params.bytes_per_line);
+
+ buffer = malloc (scanner->params.bytes_per_line);
+ reorder = malloc (scanner->params.bytes_per_line);
+ if (!buffer || !reorder)
+ {
+ free (buffer);
+ free (reorder);
+ return SANE_STATUS_NO_MEM;
+ }
+
+ lines = scanner->params.lines;
+
+ while (lines--)
+ {
+ set_read_length (sread.cmd, 1);
+ size = scanner->params.bytes_per_line;
+
+ do
+ {
+ status =
+ sanei_scsi_cmd (scanner->sfd, sread.cmd, sread.size, buffer,
+ &size);
+ }
+ while (status);
+
+ DBG_DUMP (DBG_dump, buffer, 64);
+
+ if (scanner->colormode == RGB)
+ {
+ int i;
+ unsigned char *src, *dest;
+ int offset;
+
+ dest = reorder;
+ src = buffer;
+ offset = scanner->params.pixels_per_line;
+
+ for (i = scanner->params.pixels_per_line; i > 0; i--)
+ {
+ *dest++ = *src;
+ *dest++ = *(src + offset);
+ *dest++ = *(src + 2 * offset);
+ src++;
+ }
+ fwrite (reorder, 1, scanner->params.bytes_per_line, fp);
+ }
+ else
+ {
+ fwrite (buffer, 1, scanner->params.bytes_per_line, fp);
+ }
+
+ fflush (fp);
+ }
+
+ free (buffer);
+ free (reorder);
+
+ return 0;
+}
+
+
+
+/* --------------------------------- READER PROCESS SIGTERM HANDLER ------------ */
+
+
+static RETSIGTYPE
+reader_process_sigterm_handler (int signal)
+{
+ DBG (DBG_sane_info, "reader_process: terminated by signal %d\n", signal);
+
+#ifdef HAVE_SANEI_SCSI_OPEN_EXTENDED
+ sanei_scsi_req_flush_all (); /* flush SCSI queue */
+#else
+ sanei_scsi_req_flush_all (); /* flush SCSI queue */
+#endif
+
+ _exit (SANE_STATUS_GOOD);
+}
+
+
+
+/* ------------------------------ READER PROCESS ----------------------------- */
+
+
+static int
+reader_process ( void *data ) /* executed as a child process */
+{
+ int status;
+ FILE *fp;
+ Pie_Scanner * scanner;
+ sigset_t ignore_set;
+ struct SIGACTION act;
+
+ scanner = (Pie_Scanner *)data;
+
+ if (sanei_thread_is_forked ()) {
+
+ close ( scanner->pipe );
+
+ sigfillset (&ignore_set);
+ sigdelset (&ignore_set, SIGTERM);
+#if defined (__APPLE__) && defined (__MACH__)
+ sigdelset (&ignore_set, SIGUSR2);
+#endif
+ sigprocmask (SIG_SETMASK, &ignore_set, 0);
+
+ memset (&act, 0, sizeof (act));
+ sigaction (SIGTERM, &act, 0);
+ }
+
+ DBG (DBG_sane_proc, "reader_process started\n");
+
+ memset (&act, 0, sizeof (act)); /* define SIGTERM-handler */
+ act.sa_handler = reader_process_sigterm_handler;
+ sigaction (SIGTERM, &act, 0);
+
+ fp = fdopen (scanner->reader_fds, "w");
+ if (!fp)
+ {
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ DBG (DBG_sane_info, "reader_process: starting to READ data\n");
+
+ if (scanner->device->inquiry_color_format & INQ_COLOR_FORMAT_LINE)
+ status = pie_reader_process (scanner, fp);
+ else if (scanner->device->inquiry_color_format & INQ_COLOR_FORMAT_INDEX)
+ status = pie_reader_process_indexed (scanner, fp);
+ else
+ status = SANE_STATUS_UNSUPPORTED;
+
+ fclose (fp);
+
+ DBG (DBG_sane_info, "reader_process: finished reading data\n");
+
+ return status;
+}
+
+
+/* -------------------------------- ATTACH_ONE ---------------------------------- */
+
+
+/* callback function for sanei_config_attach_matching_devices(dev_name, attach_one) */
+static SANE_Status
+attach_one (const char *name)
+{
+ attach_scanner (name, 0);
+ return SANE_STATUS_GOOD;
+}
+
+
+/* ----------------------------- CLOSE PIPE ---------------------------------- */
+
+
+static SANE_Status
+close_pipe (Pie_Scanner * scanner)
+{
+ DBG (DBG_sane_proc, "close_pipe\n");
+
+ if (scanner->pipe >= 0)
+ {
+ close (scanner->pipe);
+ scanner->pipe = -1;
+ }
+
+ return SANE_STATUS_EOF;
+}
+
+
+
+/* ---------------------------- DO CANCEL ---------------------------------- */
+
+
+static SANE_Status
+do_cancel (Pie_Scanner * scanner)
+{
+ DBG (DBG_sane_proc, "do_cancel\n");
+
+ scanner->scanning = SANE_FALSE;
+
+ if (scanner->reader_pid != -1)
+ {
+ DBG (DBG_sane_info, "killing reader_process\n");
+ sanei_thread_kill (scanner->reader_pid);
+ sanei_thread_waitpid (scanner->reader_pid, 0);
+ scanner->reader_pid = -1;
+ DBG (DBG_sane_info, "reader_process killed\n");
+ }
+
+ if (scanner->sfd >= 0)
+ {
+ pie_scan (scanner, 0);
+
+ pie_power_save (scanner, 15);
+
+ pie_give_scanner (scanner); /* reposition and release scanner */
+
+ DBG (DBG_sane_info, "closing scannerdevice filedescriptor\n");
+ sanei_scsi_close (scanner->sfd);
+ scanner->sfd = -1;
+ }
+
+ return SANE_STATUS_CANCELLED;
+}
+
+
+
+/* --------------------------------------- SANE INIT ---------------------------------- */
+
+
+SANE_Status
+sane_init (SANE_Int * version_code, SANE_Auth_Callback __sane_unused__ authorize)
+{
+ char dev_name[PATH_MAX];
+ size_t len;
+ FILE *fp;
+
+ DBG_INIT ();
+
+ DBG (DBG_sane_init, "sane_init() build %d\n", BUILD);
+
+ if (version_code)
+ *version_code = SANE_VERSION_CODE (SANE_CURRENT_MAJOR, V_MINOR, BUILD);
+
+ fp = sanei_config_open (PIE_CONFIG_FILE);
+ if (!fp)
+ {
+ attach_scanner ("/dev/scanner", 0); /* no config-file: /dev/scanner */
+ return SANE_STATUS_GOOD;
+ }
+
+ while (sanei_config_read (dev_name, sizeof (dev_name), fp))
+ {
+ if (dev_name[0] == '#')
+ {
+ continue;
+ } /* ignore line comments */
+
+ len = strlen (dev_name);
+
+ if (!len) /* ignore empty lines */
+ {
+ continue;
+ }
+
+ sanei_config_attach_matching_devices (dev_name, attach_one);
+ }
+
+ fclose (fp);
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/* ----------------------------------------- SANE EXIT ---------------------------------- */
+
+
+void
+sane_exit (void)
+{
+ Pie_Device *dev, *next;
+ int i;
+
+ DBG (DBG_sane_init, "sane_exit()\n");
+
+ for (dev = first_dev; dev; dev = next)
+ {
+ next = dev->next;
+ free (dev->devicename);
+ free (dev->cal_info);
+ i = 0;
+ while (dev->halftone_list[i] != NULL)
+ free (dev->halftone_list[i++]);
+ i = 0;
+ while (dev->speed_list[i] != NULL)
+ free (dev->speed_list[i++]);
+
+ free (dev);
+ }
+
+ first_dev = NULL;
+
+ if (devlist)
+ {
+ free (devlist);
+ devlist = NULL;
+ }
+}
+
+
+/* ------------------------------------------ SANE GET DEVICES --------------------------- */
+
+
+SANE_Status
+sane_get_devices (const SANE_Device *** device_list, SANE_Bool __sane_unused__ local_only)
+{
+ Pie_Device *dev;
+ int i;
+
+ DBG (DBG_sane_init, "sane_get_devices\n");
+
+ i = 0;
+ for (dev = first_dev; dev; dev = dev->next)
+ i++;
+
+ if (devlist)
+ {
+ free (devlist);
+ }
+
+ devlist = malloc ((i + 1) * sizeof (devlist[0]));
+ if (!devlist)
+ {
+ return SANE_STATUS_NO_MEM;
+ }
+
+ i = 0;
+
+ for (dev = first_dev; dev; dev = dev->next)
+ {
+ devlist[i++] = &dev->sane;
+ }
+
+ devlist[i] = NULL;
+
+ *device_list = devlist;
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/* --------------------------------------- SANE OPEN ---------------------------------- */
+
+SANE_Status
+sane_open (SANE_String_Const devicename, SANE_Handle * handle)
+{
+ Pie_Device *dev;
+ SANE_Status status;
+ Pie_Scanner *scanner;
+ int i, j;
+
+ DBG (DBG_sane_init, "sane_open(%s)\n", devicename);
+
+ if (devicename[0]) /* search for devicename */
+ {
+ for (dev = first_dev; dev; dev = dev->next)
+ {
+ if (strcmp (dev->sane.name, devicename) == 0)
+ {
+ break;
+ }
+ }
+
+ if (!dev)
+ {
+ status = attach_scanner (devicename, &dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ return status;
+ }
+ }
+ }
+ else
+ {
+ dev = first_dev; /* empty devicename -> use first device */
+ }
+
+
+ if (!dev)
+ {
+ return SANE_STATUS_INVAL;
+ }
+
+ scanner = malloc (sizeof (*scanner));
+ if (!scanner)
+
+ {
+ return SANE_STATUS_NO_MEM;
+ }
+
+ memset (scanner, 0, sizeof (*scanner));
+
+ scanner->device = dev;
+ scanner->sfd = -1;
+ scanner->pipe = -1;
+
+ scanner->gamma_length = 1 << (scanner->device->inquiry_gamma_bits);
+
+ DBG (DBG_sane_info, "Using %d bits for gamma input\n",
+ scanner->device->inquiry_gamma_bits);
+
+ scanner->gamma_range.min = 0;
+ scanner->gamma_range.max = scanner->gamma_length - 1;
+ scanner->gamma_range.quant = 0;
+
+ scanner->gamma_table[0] =
+ (SANE_Int *) malloc (scanner->gamma_length * sizeof (SANE_Int));
+ scanner->gamma_table[1] =
+ (SANE_Int *) malloc (scanner->gamma_length * sizeof (SANE_Int));
+ scanner->gamma_table[2] =
+ (SANE_Int *) malloc (scanner->gamma_length * sizeof (SANE_Int));
+ scanner->gamma_table[3] =
+ (SANE_Int *) malloc (scanner->gamma_length * sizeof (SANE_Int));
+
+ for (i = 0; i < 4; ++i) /* gamma_table[0,1,2,3] */
+ {
+ for (j = 0; j < scanner->gamma_length; ++j)
+ {
+ scanner->gamma_table[i][j] = j;
+ }
+ }
+
+ init_options (scanner);
+
+ scanner->next = first_handle; /* insert newly opened handle into list of open handles: */
+ first_handle = scanner;
+
+ *handle = scanner;
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/* ------------------------------------ SANE CLOSE --------------------------------- */
+
+
+void
+sane_close (SANE_Handle handle)
+{
+ Pie_Scanner *prev, *scanner;
+
+ DBG (DBG_sane_init, "sane_close\n");
+
+ /* remove handle from list of open handles: */
+ prev = 0;
+
+ for (scanner = first_handle; scanner; scanner = scanner->next)
+ {
+ if (scanner == handle)
+ {
+ break;
+ }
+
+ prev = scanner;
+ }
+
+ if (!scanner)
+ {
+ DBG (DBG_error, "close: invalid handle %p\n", handle);
+ return; /* oops, not a handle we know about */
+ }
+
+ if (scanner->scanning) /* stop scan if still scanning */
+ {
+ do_cancel (handle);
+ }
+
+ if (prev)
+ {
+ prev->next = scanner->next;
+ }
+ else
+ {
+ first_handle = scanner->next;
+ }
+
+ free (scanner->gamma_table[0]); /* free custom gamma tables */
+ free (scanner->gamma_table[1]);
+ free (scanner->gamma_table[2]);
+ free (scanner->gamma_table[3]);
+ free (scanner->val[OPT_MODE].s);
+ free (scanner->val[OPT_SPEED].s);
+ free (scanner->val[OPT_HALFTONE_PATTERN].s);
+
+ scanner->bufsize = 0;
+
+ free (scanner); /* free scanner */
+}
+
+
+/* ---------------------------------- SANE GET OPTION DESCRIPTOR ----------------- */
+
+const SANE_Option_Descriptor *
+sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
+{
+ Pie_Scanner *scanner = handle;
+
+ DBG (DBG_sane_option, "sane_get_option_descriptor %d\n", option);
+
+ if ((unsigned) option >= NUM_OPTIONS)
+ {
+ return 0;
+ }
+
+ return scanner->opt + option;
+}
+
+
+/* ---------------------------------- SANE CONTROL OPTION ------------------------ */
+
+
+SANE_Status
+sane_control_option (SANE_Handle handle, SANE_Int option, SANE_Action action,
+ void *val, SANE_Int * info)
+{
+ Pie_Scanner *scanner = handle;
+ SANE_Status status;
+ SANE_Word cap;
+ SANE_String_Const name;
+
+ if (info)
+ {
+ *info = 0;
+ }
+
+ if (scanner->scanning)
+ {
+ return SANE_STATUS_DEVICE_BUSY;
+ }
+
+ if ((unsigned) option >= NUM_OPTIONS)
+ {
+ return SANE_STATUS_INVAL;
+ }
+
+ cap = scanner->opt[option].cap;
+ if (!SANE_OPTION_IS_ACTIVE (cap))
+ {
+ return SANE_STATUS_INVAL;
+ }
+
+ name = scanner->opt[option].name;
+ if (!name)
+ {
+ name = "(no name)";
+ }
+
+ if (action == SANE_ACTION_GET_VALUE)
+ {
+
+ DBG (DBG_sane_option, "get %s [#%d]\n", name, option);
+
+ switch (option)
+ {
+ /* word options: */
+ case OPT_NUM_OPTS:
+ case OPT_RESOLUTION:
+ case OPT_TL_X:
+ case OPT_TL_Y:
+ case OPT_BR_X:
+ case OPT_BR_Y:
+ case OPT_PREVIEW:
+ case OPT_THRESHOLD:
+ *(SANE_Word *) val = scanner->val[option].w;
+ return SANE_STATUS_GOOD;
+
+ /* word-array options: */
+ case OPT_GAMMA_VECTOR:
+ case OPT_GAMMA_VECTOR_R:
+ case OPT_GAMMA_VECTOR_G:
+ case OPT_GAMMA_VECTOR_B:
+ memcpy (val, scanner->val[option].wa, scanner->opt[option].size);
+ return SANE_STATUS_GOOD;
+
+#if 0
+ /* string options: */
+ case OPT_SOURCE:
+#endif
+ case OPT_MODE:
+ case OPT_HALFTONE_PATTERN:
+ case OPT_SPEED:
+ strcpy (val, scanner->val[option].s);
+ return SANE_STATUS_GOOD;
+ }
+ }
+ else if (action == SANE_ACTION_SET_VALUE)
+ {
+ switch (scanner->opt[option].type)
+ {
+ case SANE_TYPE_INT:
+ DBG (DBG_sane_option, "set %s [#%d] to %d\n", name, option,
+ *(SANE_Word *) val);
+ break;
+
+ case SANE_TYPE_FIXED:
+ DBG (DBG_sane_option, "set %s [#%d] to %f\n", name, option,
+ SANE_UNFIX (*(SANE_Word *) val));
+ break;
+
+ case SANE_TYPE_STRING:
+ DBG (DBG_sane_option, "set %s [#%d] to %s\n", name, option,
+ (char *) val);
+ break;
+
+ case SANE_TYPE_BOOL:
+ DBG (DBG_sane_option, "set %s [#%d] to %d\n", name, option,
+ *(SANE_Word *) val);
+ break;
+
+ default:
+ DBG (DBG_sane_option, "set %s [#%d]\n", name, option);
+ }
+
+ if (!SANE_OPTION_IS_SETTABLE (cap))
+ {
+ return SANE_STATUS_INVAL;
+ }
+
+ status = sanei_constrain_value (scanner->opt + option, val, info);
+ if (status != SANE_STATUS_GOOD)
+ {
+ return status;
+ }
+
+ switch (option)
+ {
+ /* (mostly) side-effect-free word options: */
+ case OPT_RESOLUTION:
+ case OPT_TL_X:
+ case OPT_TL_Y:
+ case OPT_BR_X:
+ case OPT_BR_Y:
+ if (info)
+ {
+ *info |= SANE_INFO_RELOAD_PARAMS;
+ }
+ /* fall through */
+ case OPT_NUM_OPTS:
+ case OPT_PREVIEW:
+ case OPT_THRESHOLD:
+ scanner->val[option].w = *(SANE_Word *) val;
+ return SANE_STATUS_GOOD;
+
+ /* side-effect-free word-array options: */
+ case OPT_GAMMA_VECTOR:
+ case OPT_GAMMA_VECTOR_R:
+ case OPT_GAMMA_VECTOR_G:
+ case OPT_GAMMA_VECTOR_B:
+ memcpy (scanner->val[option].wa, val, scanner->opt[option].size);
+ return SANE_STATUS_GOOD;
+
+ /* options with side-effects: */
+
+ case OPT_MODE:
+ {
+ int halftoning;
+
+ if (scanner->val[option].s)
+ {
+ free (scanner->val[option].s);
+ }
+
+ scanner->val[option].s = (SANE_Char *) strdup (val);
+
+ if (info)
+ {
+ *info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS;
+ }
+
+ scanner->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE;
+
+
+ scanner->opt[OPT_GAMMA_VECTOR].cap |= SANE_CAP_INACTIVE;
+ scanner->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
+ scanner->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
+ scanner->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
+ scanner->opt[OPT_THRESHOLD].cap |= SANE_CAP_INACTIVE;
+
+ halftoning = (strcmp (val, HALFTONE_STR) == 0);
+
+ if (halftoning || strcmp (val, LINEART_STR) == 0)
+ { /* one bit modes */
+ if (halftoning)
+ { /* halftoning modes */
+ scanner->opt[OPT_HALFTONE_PATTERN].cap &=
+ ~SANE_CAP_INACTIVE;
+ }
+ else
+ { /* lineart modes */
+ }
+ scanner->opt[OPT_THRESHOLD].cap &= ~SANE_CAP_INACTIVE;
+ }
+ else
+ { /* multi-bit modes(gray or color) */
+ }
+
+ if ((strcmp (val, LINEART_STR) == 0)
+ || (strcmp (val, HALFTONE_STR) == 0)
+ || (strcmp (val, GRAY_STR) == 0))
+ {
+ scanner->opt[OPT_GAMMA_VECTOR].cap &= ~SANE_CAP_INACTIVE;
+ }
+ else if (strcmp (val, COLOR_STR) == 0)
+ {
+ /* scanner->opt[OPT_GAMMA_VECTOR].cap &= ~SANE_CAP_INACTIVE; */
+ scanner->opt[OPT_GAMMA_VECTOR_R].cap &= ~SANE_CAP_INACTIVE;
+ scanner->opt[OPT_GAMMA_VECTOR_G].cap &= ~SANE_CAP_INACTIVE;
+ scanner->opt[OPT_GAMMA_VECTOR_B].cap &= ~SANE_CAP_INACTIVE;
+ }
+ return SANE_STATUS_GOOD;
+ }
+
+ case OPT_SPEED:
+ case OPT_HALFTONE_PATTERN:
+ {
+ if (scanner->val[option].s)
+ {
+ free (scanner->val[option].s);
+ }
+
+ scanner->val[option].s = (SANE_Char *) strdup (val);
+
+ return SANE_STATUS_GOOD;
+ }
+ }
+ } /* else */
+ return SANE_STATUS_INVAL;
+}
+
+
+/* ------------------------------------ SANE GET PARAMETERS ------------------------ */
+
+
+SANE_Status
+sane_get_parameters (SANE_Handle handle, SANE_Parameters * params)
+{
+ Pie_Scanner *scanner = handle;
+ const char *mode;
+
+ DBG (DBG_sane_info, "sane_get_parameters\n");
+
+ if (!scanner->scanning)
+ { /* not scanning, so lets use recent values */
+ double width, length, x_dpi, y_dpi;
+
+ memset (&scanner->params, 0, sizeof (scanner->params));
+
+ width =
+ SANE_UNFIX (scanner->val[OPT_BR_X].w - scanner->val[OPT_TL_X].w);
+ length =
+ SANE_UNFIX (scanner->val[OPT_BR_Y].w - scanner->val[OPT_TL_Y].w);
+ x_dpi = SANE_UNFIX (scanner->val[OPT_RESOLUTION].w);
+ y_dpi = x_dpi;
+
+#if 0
+ if ((scanner->val[OPT_RESOLUTION_BIND].w == SANE_TRUE)
+ || (scanner->val[OPT_PREVIEW].w == SANE_TRUE))
+ {
+ y_dpi = x_dpi;
+ }
+#endif
+ if (x_dpi > 0.0 && y_dpi > 0.0 && width > 0.0 && length > 0.0)
+ {
+ double x_dots_per_mm = x_dpi / MM_PER_INCH;
+ double y_dots_per_mm = y_dpi / MM_PER_INCH;
+
+ scanner->params.pixels_per_line = width * x_dots_per_mm;
+ scanner->params.lines = length * y_dots_per_mm;
+ }
+ }
+
+ mode = scanner->val[OPT_MODE].s;
+
+ if (strcmp (mode, LINEART_STR) == 0 || strcmp (mode, HALFTONE_STR) == 0)
+ {
+ scanner->params.format = SANE_FRAME_GRAY;
+ scanner->params.bytes_per_line =
+ (scanner->params.pixels_per_line + 7) / 8;
+ scanner->params.depth = 1;
+ }
+ else if (strcmp (mode, GRAY_STR) == 0)
+ {
+ scanner->params.format = SANE_FRAME_GRAY;
+ scanner->params.bytes_per_line = scanner->params.pixels_per_line;
+ scanner->params.depth = 8;
+ }
+ else /* RGB */
+ {
+ scanner->params.format = SANE_FRAME_RGB;
+ scanner->params.bytes_per_line = 3 * scanner->params.pixels_per_line;
+ scanner->params.depth = 8;
+ }
+
+ scanner->params.last_frame = (scanner->params.format != SANE_FRAME_RED
+ && scanner->params.format !=
+ SANE_FRAME_GREEN);
+
+ if (params)
+ {
+ *params = scanner->params;
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/* ----------------------------------------- SANE START --------------------------------- */
+
+
+SANE_Status
+sane_start (SANE_Handle handle)
+{
+ Pie_Scanner *scanner = handle;
+ int fds[2];
+ const char *mode;
+ int status;
+
+ DBG (DBG_sane_init, "sane_start\n");
+
+ /* Check for inconsistencies */
+
+ if (scanner->val[OPT_TL_X].w > scanner->val[OPT_BR_X].w)
+ {
+ DBG (0, "sane_start: %s (%.1f mm) is bigger than %s (%.1f mm) "
+ "-- aborting\n",
+ scanner->opt[OPT_TL_X].title, SANE_UNFIX (scanner->val[OPT_TL_X].w),
+ scanner->opt[OPT_BR_X].title, SANE_UNFIX (scanner->val[OPT_BR_X].w));
+ return SANE_STATUS_INVAL;
+ }
+ if (scanner->val[OPT_TL_Y].w > scanner->val[OPT_BR_Y].w)
+ {
+ DBG (0, "sane_start: %s (%.1f mm) is bigger than %s (%.1f mm) "
+ "-- aborting\n",
+ scanner->opt[OPT_TL_Y].title, SANE_UNFIX (scanner->val[OPT_TL_Y].w),
+ scanner->opt[OPT_BR_Y].title, SANE_UNFIX (scanner->val[OPT_BR_Y].w));
+ return SANE_STATUS_INVAL;
+ }
+
+ mode = scanner->val[OPT_MODE].s;
+
+ if (scanner->sfd < 0) /* first call, don`t run this routine again on multi frame or multi image scan */
+ {
+#ifdef HAVE_SANEI_SCSI_OPEN_EXTENDED
+ int scsi_bufsize = 131072; /* 128KB */
+
+ if (sanei_scsi_open_extended
+ (scanner->device->sane.name, &(scanner->sfd), sense_handler,
+ scanner->device, &scsi_bufsize) != 0)
+
+ {
+ DBG (DBG_error, "sane_start: open failed\n");
+ return SANE_STATUS_INVAL;
+ }
+
+ if (scsi_bufsize < 32768) /* < 32KB */
+ {
+ DBG (DBG_error,
+ "sane_start: sanei_scsi_open_extended returned too small scsi buffer (%d)\n",
+ scsi_bufsize);
+ sanei_scsi_close ((scanner->sfd));
+ return SANE_STATUS_NO_MEM;
+ }
+ DBG (DBG_info,
+ "sane_start: sanei_scsi_open_extended returned scsi buffer size = %d\n",
+ scsi_bufsize);
+
+
+ scanner->bufsize = scsi_bufsize;
+#else
+ if (sanei_scsi_open
+ (scanner->device->sane.name, &(scanner->sfd), sense_handler,
+ scanner->device) != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "sane_start: open of %s failed:\n",
+ scanner->device->sane.name);
+ return SANE_STATUS_INVAL;
+ }
+
+ /* there is no need to reallocate the buffer because the size is fixed */
+#endif
+
+#if 0
+ if (pie_check_values (scanner->device) != 0)
+ {
+ DBG (DBG_error, "ERROR: invalid scan-values\n");
+ scanner->scanning = SANE_FALSE;
+ pie_give_scanner (scanner); /* reposition and release scanner */
+ sanei_scsi_close (scanner->sfd);
+ scanner->sfd = -1;
+ return SANE_STATUS_INVAL;
+ }
+#endif
+#if 0
+ scanner->params.bytes_per_line = scanner->device->row_len;
+ scanner->params.pixels_per_line = scanner->device->width_in_pixels;
+ scanner->params.lines = scanner->device->length_in_pixels;
+
+ sane_get_parameters (scanner, 0);
+
+ DBG (DBG_sane_info, "x_resolution (dpi) = %u\n",
+ scanner->device->x_resolution);
+ DBG (DBG_sane_info, "y_resolution (dpi) = %u\n",
+ scanner->device->y_resolution);
+ DBG (DBG_sane_info, "x_coordinate_base (dpi) = %u\n",
+ scanner->device->x_coordinate_base);
+ DBG (DBG_sane_info, "y_coordinate_base (dpi) = %u\n",
+ scanner->device->y_coordinate_base);
+ DBG (DBG_sane_info, "upper_left_x (xbase) = %d\n",
+ scanner->device->upper_left_x);
+ DBG (DBG_sane_info, "upper_left_y (ybase) = %d\n",
+ scanner->device->upper_left_y);
+ DBG (DBG_sane_info, "scanwidth (xbase) = %u\n",
+ scanner->device->scanwidth);
+ DBG (DBG_sane_info, "scanlength (ybase) = %u\n",
+ scanner->device->scanlength);
+ DBG (DBG_sane_info, "width in pixels = %u\n",
+ scanner->device->width_in_pixels);
+ DBG (DBG_sane_info, "length in pixels = %u\n",
+ scanner->device->length_in_pixels);
+ DBG (DBG_sane_info, "bits per pixel/color = %u\n",
+ scanner->device->bits_per_pixel);
+ DBG (DBG_sane_info, "bytes per line = %d\n",
+ scanner->params.bytes_per_line);
+ DBG (DBG_sane_info, "pixels_per_line = %d\n",
+ scanner->params.pixels_per_line);
+ DBG (DBG_sane_info, "lines = %d\n",
+ scanner->params.lines);
+#endif
+
+ /* grab scanner */
+ if (pie_grab_scanner (scanner))
+ {
+ sanei_scsi_close (scanner->sfd);
+ scanner->sfd = -1;
+ DBG (DBG_warning,
+ "WARNING: unable to reserve scanner: device busy\n");
+ return SANE_STATUS_DEVICE_BUSY;
+ }
+
+ scanner->scanning = SANE_TRUE;
+
+ pie_power_save (scanner, 0);
+ } /* ------------ end of first call -------------- */
+
+
+ if (strcmp (mode, LINEART_STR) == 0)
+ {
+ scanner->colormode = LINEART;
+ }
+ else if (strcmp (mode, HALFTONE_STR) == 0)
+ {
+ scanner->colormode = HALFTONE;
+ }
+ else if (strcmp (mode, GRAY_STR) == 0)
+ {
+ scanner->colormode = GRAYSCALE;
+ }
+ else if (strcmp (mode, COLOR_STR) == 0)
+ {
+ scanner->colormode = RGB;
+ }
+
+ /* get and set geometric values for scanning */
+ scanner->resolution = SANE_UNFIX (scanner->val[OPT_RESOLUTION].w);
+
+ pie_set_window (scanner);
+ pie_send_exposure (scanner);
+ pie_mode_select (scanner);
+ pie_send_highlight_shadow (scanner);
+
+ pie_scan (scanner, 1);
+
+ status = pie_do_cal (scanner);
+ if (status)
+ return status;
+
+ /* send gammacurves */
+
+ pie_dwnld_gamma (scanner);
+
+ pie_get_params (scanner);
+
+ if (pipe (fds) < 0) /* create a pipe, fds[0]=read-fd, fds[1]=write-fd */
+ {
+ DBG (DBG_error, "ERROR: could not create pipe\n");
+ scanner->scanning = SANE_FALSE;
+ pie_scan (scanner, 0);
+ pie_give_scanner (scanner); /* reposition and release scanner */
+ sanei_scsi_close (scanner->sfd);
+ scanner->sfd = -1;
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ scanner->pipe = fds[0];
+ scanner->reader_fds = fds[1];
+ scanner->reader_pid = sanei_thread_begin( reader_process, (void*)scanner );
+
+ if (scanner->reader_pid == -1)
+ {
+ DBG (1, "sane_start: sanei_thread_begin failed (%s)\n",
+ strerror (errno));
+ return SANE_STATUS_NO_MEM;
+ }
+
+ if (sanei_thread_is_forked ())
+ {
+ close (scanner->reader_fds);
+ scanner->reader_fds = -1;
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/* -------------------------------------- SANE READ ---------------------------------- */
+
+
+SANE_Status
+sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len,
+ SANE_Int * len)
+{
+ Pie_Scanner *scanner = handle;
+ ssize_t nread;
+
+ *len = 0;
+
+ nread = read (scanner->pipe, buf, max_len);
+ DBG (DBG_sane_info, "sane_read: read %ld bytes\n", (long) nread);
+
+ if (!(scanner->scanning)) /* OOPS, not scanning */
+ {
+ return do_cancel (scanner);
+ }
+
+ if (nread < 0)
+ {
+ if (errno == EAGAIN)
+ {
+ DBG (DBG_sane_info, "sane_read: EAGAIN\n");
+ return SANE_STATUS_GOOD;
+ }
+ else
+ {
+ do_cancel (scanner); /* we had an error, stop scanner */
+ return SANE_STATUS_IO_ERROR;
+ }
+ }
+
+ *len = nread;
+
+ if (nread == 0) /* EOF */
+ {
+ do_cancel (scanner);
+
+ return close_pipe (scanner); /* close pipe */
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/* ------------------------------------- SANE CANCEL -------------------------------- */
+
+
+void
+sane_cancel (SANE_Handle handle)
+{
+ Pie_Scanner *scanner = handle;
+
+ DBG (DBG_sane_init, "sane_cancel\n");
+
+ if (scanner->scanning)
+ {
+ do_cancel (scanner);
+ }
+}
+
+
+/* -------------------------------------- SANE SET IO MODE --------------------------- */
+
+
+SANE_Status
+sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking)
+{
+ Pie_Scanner *scanner = handle;
+
+ DBG (DBG_sane_init, "sane_set_io_mode: non_blocking=%d\n", non_blocking);
+
+ if (!scanner->scanning)
+ {
+ return SANE_STATUS_INVAL;
+ }
+
+ if (fcntl (scanner->pipe, F_SETFL, non_blocking ? O_NONBLOCK : 0) < 0)
+ {
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/* --------------------------------------- SANE GET SELECT FD ------------------------- */
+
+
+SANE_Status
+sane_get_select_fd (SANE_Handle handle, SANE_Int * fd)
+{
+ Pie_Scanner *scanner = handle;
+
+ DBG (DBG_sane_init, "sane_get_select_fd\n");
+
+ if (!scanner->scanning)
+ {
+ return SANE_STATUS_INVAL;
+ }
+ *fd = scanner->pipe;
+
+ return SANE_STATUS_GOOD;
+}
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