From 6e9c41a892ed0e0da326e0278b3221ce3f5713b8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Mon, 6 Oct 2014 14:00:40 +0200 Subject: Initial import of sane-backends version 1.0.24-1.2 --- backend/agfafocus.c | 2083 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 2083 insertions(+) create mode 100644 backend/agfafocus.c (limited to 'backend/agfafocus.c') diff --git a/backend/agfafocus.c b/backend/agfafocus.c new file mode 100644 index 0000000..bc21558 --- /dev/null +++ b/backend/agfafocus.c @@ -0,0 +1,2083 @@ +/* sane - Scanner Access Now Easy. + + This file (C) 1997 Ingo Schneider + (C) 1998 Karl Anders Øygard + + This file is part of the SANE package. + + SANE 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. + + SANE 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 sane; see the file COPYING. If not, write to the Free + Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + This file implements a SANE backend for AGFA Focus flatbed scanners. */ + +#include "../include/sane/config.h" + +#include +#include +#include +#include +#include +#include +#include + +#include "../include/sane/sane.h" +#include "../include/sane/sanei.h" +#include "../include/sane/sanei_config.h" +#include "../include/sane/saneopts.h" +#include "../include/sane/sanei_scsi.h" +#include "../include/sane/sanei_thread.h" + +#define BACKEND_NAME agfafocus +#include "../include/sane/sanei_backend.h" + +#include "agfafocus.h" + +#ifndef PATH_MAX +# define PATH_MAX 1024 +#endif + + +#undef Byte +#define Byte SANE_Byte + +static int num_devices; +static AgfaFocus_Device *agfafocus_devices; + +static const SANE_String_Const focus_mode_list[] = +{ + "Lineart", "Gray (6 bit)", + 0 +}; + +static const SANE_String_Const focusii_mode_list[] = +{ + "Lineart", "Gray (6 bit)", "Gray (8 bit)", + 0 +}; + +static const SANE_String_Const focuscolor_mode_list[] = +{ + "Lineart", "Gray (6 bit)", "Gray (8 bit)", "Color (18 bit)", "Color (24 bit)", + 0 +}; + +static const SANE_String_Const halftone_list[] = +{ + "None", "Dispersed dot 4x4", "Round (Clustered dot 4x4)", "Diamond (Clustered dot 4x4)", + 0 +}; + +static const SANE_String_Const halftone_upload_list[] = +{ + "None", "Dispersed dot 4x4", "Round (Clustered dot 4x4)", "Diamond (Clustered dot 4x4)", + 0 +}; + +static const SANE_String_Const source_list[] = +{ + "Opaque/Normal", "Transparency", + 0 +}; + +static const SANE_String_Const quality_list[] = +{ + "Low", "Normal", "High", + 0 +}; + +static size_t +max_string_size (const SANE_String_Const strings[]) +{ + size_t size, max_size = 0; + int i; + DBG (11, ">> max_string_size\n"); + + for (i = 0; strings[i]; ++i) + { + size = strlen (strings[i]) + 1; + if (size > max_size) + max_size = size; + } + + DBG (11, "<< max_string_size\n"); + return max_size; +} + +/* sets loc_s bytes long value at offset loc in scsi command to value size */ +static void +set_size (Byte * loc, int loc_s, size_t size) +{ + int i; + + for (i = 0; i < loc_s; i++) + { + loc[loc_s - i - 1] = (size >> (i * 8)) & 0xff; + } +} + +/* gets loc_s bytes long value from loc in scsi command */ +static int +get_size (Byte * loc, int loc_s) +{ + int i; + int j = 0; + + for (i = 0; i < loc_s; i++) + { + j = (j << 8) + (loc[i] & 0xff); + } + + return j; +} + +static long +reserve_unit (int fd) +{ + struct + { + /* Command */ + Byte cmd; + Byte lun; + Byte res[2]; + Byte tr_len; + Byte ctrl; + } + scsi_reserve; + + memset (&scsi_reserve, 0, sizeof (scsi_reserve)); + + scsi_reserve.cmd = 0x16; /* RELEASE */ + + DBG (3, "reserve_unit()\n"); + return sanei_scsi_cmd (fd, &scsi_reserve, sizeof (scsi_reserve), 0, 0); +} + +static long +release_unit (int fd) +{ + struct + { + /* Command */ + Byte cmd; + Byte lun; + Byte res[2]; + Byte tr_len; + Byte ctrl; + } + scsi_release; + + memset (&scsi_release, 0, sizeof (scsi_release)); + + scsi_release.cmd = 0x17; /* RELEASE */ + + DBG (3, "release_unit()\n"); + return sanei_scsi_cmd (fd, &scsi_release, sizeof (scsi_release), 0, 0); +} + +static SANE_Status +test_ready (int fd) +{ + SANE_Status status; + int try; + + struct + { + /* Command */ + Byte cmd; + Byte lun; + Byte res[2]; + Byte tr_len; + Byte ctrl; + } + scsi_test_ready; + + memset (&scsi_test_ready, 0, sizeof (scsi_test_ready)); + + scsi_test_ready.cmd = 0x00; /* TEST UNIT READY */ + + for (try = 0; try < 1000; ++try) + { + DBG (3, "test_ready: sending TEST_UNIT_READY\n"); + status = sanei_scsi_cmd (fd, &scsi_test_ready, sizeof (scsi_test_ready), + 0, 0); + + switch (status) + { + case SANE_STATUS_DEVICE_BUSY: + usleep (100000); /* retry after 100ms */ + break; + + case SANE_STATUS_GOOD: + return status; + + default: + DBG (1, "test_ready: test unit ready failed (%s)\n", + sane_strstatus (status)); + return status; + } + } + + DBG (1, "test_ready: timed out after %d attempts\n", try); + return SANE_STATUS_IO_ERROR; +} + +static SANE_Status +sense_handler (int scsi_fd, u_char *result, void *arg) +{ + scsi_fd = scsi_fd; /* silence gcc */ + arg = arg; /* silence gcc */ + + if (result[0]) + { + DBG (0, "sense_handler() : sense code = %02x\n", result[0]); + return SANE_STATUS_IO_ERROR; + } + else + { + return SANE_STATUS_GOOD; + } +} + +static SANE_Status +stop_scan (int fd) +{ + fd = fd; /* silence gcc */ + + /* XXX don't know how to stop the scanner. To be tested ! */ +#if 0 + const Byte scsi_rewind[] = + { + 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 + }; + DBG (1, "Trying to stop scanner...\n"); + return sanei_scsi_cmd (fd, scsi_rewind, sizeof (scsi_rewind), 0, 0); +#else + return SANE_STATUS_GOOD; +#endif +} + + +static SANE_Status +start_scan (int fd, SANE_Bool cont) +{ + struct + { + /* Command */ + Byte cmd; + Byte lun; + Byte res[2]; + Byte tr_len; + Byte ctrl; + + /* Data */ + Byte wid; + } + scsi_start_scan; + + memset (&scsi_start_scan, 0, sizeof (scsi_start_scan)); + + scsi_start_scan.cmd = 0x1b; /* SCAN */ + scsi_start_scan.tr_len = 1; + scsi_start_scan.wid = 0; + scsi_start_scan.ctrl = (cont == SANE_TRUE) ? 0x80 : 0x00; + + DBG (1, "Starting scanner ...\n"); + return sanei_scsi_cmd (fd, &scsi_start_scan, sizeof (scsi_start_scan), 0, 0); +} + +static void +wait_ready (int fd) +{ + struct + { + Byte bytes[2]; /* Total # of bytes */ + Byte scan[2]; /* ms to complete - driver sleep time */ + } result; + + size_t size = sizeof (result); + SANE_Status status; + + struct { + Byte cmd; + Byte lun; + Byte data_type; + Byte re1[3]; + Byte tr_len[3]; + Byte ctrl; + } cmd; + + memset (&cmd, 0, sizeof (cmd)); + + cmd.cmd = 0x28; /* READ */ + cmd.data_type = 0x80; /* get scan time */ + + set_size (cmd.tr_len, 3, sizeof (result)); + + while (1) + { + status = sanei_scsi_cmd (fd, &cmd, sizeof (cmd), + &result, &size); + + if (status != SANE_STATUS_GOOD || size != sizeof (result)) + { + /* + Command failed, the assembler code of the windows scan library + ignores this condition, and so do I + */ + break; + } + else + { + /* left is the amount of seconds left till the scanner is + ready * 100 */ + int left = get_size (result.scan, 2); + + DBG (1, "wait_ready() : %d left...\n", left); + + if (!left) + break; + /* We delay only for half the given time */ + else if (left < 200) + usleep (left * 5000); + else + sleep (left / 200); + } + } + + return; +} + +static SANE_Status +get_read_sizes (int fd, int *lines_available, int *bpl, int *total_lines) +{ + struct { + Byte reserved1[8]; + Byte line_width[2]; + Byte total_lines[2]; + Byte cur_line[2]; + Byte lines_this_block[2]; + Byte reserved[8]; + } read_sizes; + + const Byte scsi_read[] = + { + 0x28, 0x00, /* opcode, lun */ + 0x81, /* data type 81 == read time left */ + 0x00, 0x00, 0x00, /* reserved */ + 0x00, 0x00, sizeof (read_sizes), /* transfer length */ + 0x00, /* control byte */ + }; + + size_t size = sizeof (read_sizes); + SANE_Status status; + + status = sanei_scsi_cmd (fd, scsi_read, sizeof (scsi_read), &read_sizes, &size); + + if (status != SANE_STATUS_GOOD || size != sizeof (read_sizes)) + { + /* Command failed */ + return SANE_STATUS_IO_ERROR; + } + else + { + *lines_available = get_size (read_sizes.lines_this_block, 2); + *bpl = get_size (read_sizes.cur_line, 2); + if (total_lines) + *total_lines = get_size (read_sizes.total_lines, 2); + } + + DBG (1, "get_read_sizes() : %d of %d, %d\n", + *lines_available, total_lines ? *total_lines : -1, *bpl); + + return SANE_STATUS_GOOD; +} + +static SANE_Status +set_window (AgfaFocus_Scanner * s) +/* This function sets and sends the window for scanning */ +{ + double pixels_per_mm = (double) s->val[OPT_RESOLUTION].w / MM_PER_INCH; + + SANE_Bool auto_bright = s->val[OPT_AUTO_BRIGHTNESS].b; + SANE_Bool auto_contr = s->val[OPT_AUTO_CONTRAST].b; + + /* ranges down 255 (dark) down to 1(bright) */ + int brightness = auto_bright ? 0 : (SANE_UNFIX (s->val[OPT_BRIGHTNESS].w) + * -1.27 + 128.5); + /* ranges from 1 (little contrast) up to 255 (much contrast) */ + int contrast = auto_contr ? 0 : (SANE_UNFIX (s->val[OPT_CONTRAST].w) + * 1.27 + 128.5); + + int width; + + /* ranges from 40 (dark) down to 0 (bright) */ + int bright_adjust = (SANE_UNFIX (s->val[OPT_BRIGHTNESS].w) * -20.0) / 100.0 + 20.0; + + /* ranges from 20 (little contrast) down to -20 = 235 (much contrast) */ + int contr_adjust = (SANE_UNFIX (s->val[OPT_CONTRAST].w) * -20.0) / 100.0; + + /* Warning ! The following structur SEEMS to be a valid SCSI-2 SET_WINDOW + command. But e.g. the limits for the window are only 2 Bytes instead + of 4. The scanner was built at about 1990, so SCSI-2 wasn't available + for development... */ + + struct + { + Byte cmd; + Byte lun; + Byte re1[4]; + Byte tr_len[3]; + Byte ctrl; + + Byte re2[6]; + Byte wd_len[2]; + + struct + { + Byte wid; /* Window ID */ + Byte autobit; /* Window creation */ + + Byte x_axis_res[2]; /* X resolution */ + Byte y_axis_res[2]; /* X resolution */ + + Byte x_axis_ul[2]; /* X upper left */ + Byte y_axis_ul[2]; /* Y upper left */ + + Byte wwidth[2]; /* Width */ + Byte wlength[2]; /* Length */ + + Byte contrast; /* Contrast */ + Byte dummy1; + Byte intensity; /* Intensity */ + + Byte image_comp; /* Image composition (0, 2, 5) */ + Byte bpp; /* Bits per pixel */ + + Byte tonecurve; /* Tone curve (0 - 8) */ + Byte ht_pattern; /* Halftone pattern */ + Byte paddingtype; /* Padding type */ + + Byte bitordering[2]; /* Bit ordering (0 = left to right) */ + Byte comprtype; /* Compression type */ + Byte comprarg; /* Compression argument */ + + Byte dummy2[6]; + Byte edge; /* Sharpening (0 - 7) */ + Byte dummy3; + + Byte bright_adjust; /* */ + Byte contr_adjust; /* */ + + Byte imagewidthtruncation; /* */ + + Byte dummy4; + Byte quality_type; /* 0 normal, 1 high, 255 low */ + Byte red_att; + Byte green_att; + Byte blue_att; + + Byte dummy5[5]; + Byte color_planes; + Byte orig_type; + Byte fixturetype; + Byte exposure[2]; + Byte defocus[2]; + Byte dummy6[4]; + Byte descreen_factor; + + Byte packing_word_length; + Byte packing_number_of_pixels; + Byte packing_color_mode; + Byte strokenab; + Byte rotatenab; + Byte autostrokenab; + Byte dummy7; + } + wd; + + } + cmd; + + memset (&cmd, 0, sizeof (cmd)); + + cmd.cmd = 0x24; /* SET WINDOW PARAMETERS */ + + switch (s->hw->type) + { + case AGFAGRAY64: + case AGFALINEART: + case AGFAGRAY256: + set_size (cmd.tr_len, 3, 36 + 8); + set_size (cmd.wd_len, 2, 36); + break; + + case AGFACOLOR: + set_size (cmd.tr_len, 3, 65 + 8); + set_size (cmd.wd_len, 2, 65); + break; + } + + /* Resolution. Original comment in German: Aufloesung */ + set_size (cmd.wd.x_axis_res, 2, s->val[OPT_RESOLUTION].w); + set_size (cmd.wd.y_axis_res, 2, s->val[OPT_RESOLUTION].w); + + /* Scan window position/size. Original comment in German: + Fensterposition / Groesse */ + set_size (cmd.wd.x_axis_ul, 2, + SANE_UNFIX (s->val[OPT_TL_X].w) * pixels_per_mm + 0.5); + set_size (cmd.wd.y_axis_ul, 2, + SANE_UNFIX (s->val[OPT_TL_Y].w) * pixels_per_mm + 0.5); + + width = (SANE_UNFIX (s->val[OPT_BR_X].w - s->val[OPT_TL_X].w) * pixels_per_mm) + 0.5; + + if (s->bpp == 1 && width % 8) + width += 8 - width % 8; + + set_size (cmd.wd.wwidth, 2, width); + set_size (cmd.wd.wlength, 2, SANE_UNFIX (s->val[OPT_BR_Y].w - s->val[OPT_TL_Y].w) + * pixels_per_mm + 0.5); + + cmd.wd.bpp = s->bpp; + + if (s->mode == COLOR18BIT || + s->mode == COLOR24BIT) + { + cmd.wd.paddingtype = 3; + cmd.wd.ht_pattern = 3; + + cmd.wd.red_att = s->r_att; + cmd.wd.blue_att = s->g_att; + cmd.wd.green_att = s->b_att; + cmd.wd.color_planes = 0x0e; + + set_size (cmd.wd.exposure, 2, s->exposure); + + cmd.wd.packing_word_length = 1; + cmd.wd.packing_number_of_pixels = 1; + cmd.wd.packing_color_mode = 2; + + if (s->bpp == 6) + cmd.wd.edge = s->edge; + + DBG (3, + "Setting parameters: imc %d, bpp %d, res %d, exp %d, attenuation [%d, %d, %d], edge %d\n", + s->image_composition, s->bpp, s->val[OPT_RESOLUTION].w, + s->exposure, cmd.wd.red_att, cmd.wd.blue_att, cmd.wd.green_att, s->edge); + } + else + { + if (s->bpp == 1) + cmd.wd.ht_pattern = s->halftone; + else + cmd.wd.ht_pattern = 3; + + cmd.wd.intensity = brightness; + cmd.wd.contrast = contrast; + + cmd.wd.contr_adjust = contr_adjust; + cmd.wd.bright_adjust = bright_adjust; + + cmd.wd.tonecurve = s->tonecurve; + cmd.wd.paddingtype = 3; + cmd.wd.edge = s->edge; + + if (s->lin_log) + cmd.wd.dummy3 = 0x02; + + DBG (3, + "Setting parameters: imc %d, bpp %d, res %d, bri %d, con %d, bad %d, cad %d, ht %d, edge %d\n", + s->image_composition, s->bpp, s->val[OPT_RESOLUTION].w, + brightness, contrast, bright_adjust, contr_adjust, s->halftone, s->edge); + } + + cmd.wd.image_comp = s->image_composition; + cmd.wd.quality_type = s->quality; + cmd.wd.orig_type = s->original; + + return sanei_scsi_cmd (s->fd, &cmd, sizeof (cmd), 0, 0); +} + +/* Tell scanner to scan more data. */ + +static SANE_Status +request_more_data (AgfaFocus_Scanner * s) +{ + SANE_Status status; + int lines_available; + int bytes_per_line; + + status = start_scan (s->fd, SANE_TRUE); + if (status != SANE_STATUS_GOOD) + return status; + + if (!s->hw->disconnect) + wait_ready (s->fd); + + status = get_read_sizes (s->fd, &lines_available, &bytes_per_line, 0); + + if (!lines_available) + return SANE_STATUS_INVAL; + + s->lines_available = lines_available; + + return SANE_STATUS_GOOD; +} + +static SANE_Status +upload_dither_matrix (AgfaFocus_Scanner * s, int rows, int cols, int *dither_matrix) +{ + struct { + Byte cmd; + Byte lun; + Byte data_type; + Byte re1[3]; + Byte tr_len[3]; + Byte ctrl; + + struct { + Byte nrrows[2]; + Byte nrcols[2]; + + struct { + Byte data[2]; + } element[256]; + } wd; + } cmd; + + SANE_Status status; + int i; + + memset (&cmd, 0, sizeof (cmd)); + + cmd.cmd = 0x2a; /* WRITE */ + cmd.data_type = 0x81; /* upload dither matrix */ + + set_size (cmd.tr_len, 3, 4 + (2 * rows * cols)); + set_size (cmd.wd.nrrows, 2, rows); + set_size (cmd.wd.nrcols, 2, cols); + + for (i = 0; i < cols * rows; ++i) + set_size (cmd.wd.element[i].data, 2, dither_matrix[i]); + + status = sanei_scsi_cmd (s->fd, &cmd, sizeof (cmd), 0, 0); + + if (status != SANE_STATUS_GOOD) + /* Command failed */ + return SANE_STATUS_IO_ERROR; + + DBG (1, "upload_dither_matrix(): uploaded dither matrix: %d, %d\n", rows, cols); + + return SANE_STATUS_GOOD; +} + +#if 0 +static SANE_Status +upload_tonecurve (AgfaFocus_Scanner * s, int color_type, int input, int output, int dither_matrix[256]) +{ + struct { + Byte cmd; + Byte lun; + Byte re1[4]; + Byte tr_len[3]; + Byte ctrl; + + Byte re2[6]; + Byte wd_len[2]; + + struct { + Byte color_type[2]; + Byte nrinput[2]; + Byte nroutput[2]; + + struct { + Byte data[2]; + } outputval[256]; + } wd; + } cmd; + + SANE_Status status; + int i, j; + + memset (&cmd, 0, sizeof (cmd)); + + cmd.cmd = 0x80; + + set_size (cmd.tr_len, 3, sizeof (cmd.wd)); + set_size (cmd.wd.nrrows, 2, rows); + set_size (cmd.wd.nrrows, 2, cols); + + for (i = 0; i < cols; ++i) + for (j = 0; j < rows; ++j) + set_size (cmd.wd.element[j + i * rows].data, 2, dither_matrix[j + i * rows]); + + status = sanei_scsi_cmd (s->fd, &cmd, sizeof (cmd), 0, 0); + + if (status != SANE_STATUS_GOOD) + /* * Command failed * */ + return SANE_STATUS_IO_ERROR; + + DBG (1, "upload_dither_matrix(): uploaded dither matrix\n"); + + return SANE_STATUS_GOOD; +} +#endif + +/* May only be called when there is at least one row of data to + be read. + + Original comment in German: Darf nur aufgerufen werden, wenn + wirklich noch Zeilen zu scannen/lesen sind ! */ +static SANE_Status +read_data (AgfaFocus_Scanner * s, SANE_Byte *buf, int lines, int bpl) +{ + struct { + Byte cmd; + Byte lun; + Byte re1[4]; + Byte tr_len[3]; + Byte ctrl; + } cmd; + + SANE_Status status; + size_t size; + unsigned int i; + + memset (&cmd, 0, sizeof (cmd)); + + cmd.cmd = 0x28; /* READ */ + + set_size (cmd.tr_len, 3, lines); + size = lines * bpl; + + status = sanei_scsi_cmd (s->fd, &cmd, sizeof (cmd), buf, &size); + + if (status != SANE_STATUS_GOOD) + { + DBG (1, "sanei_scsi_cmd() = %d\n", status); + return SANE_STATUS_IO_ERROR; + } + + if (size != ((unsigned int) lines * bpl)) + { + DBG (1, "sanei_scsi_cmd(): got %lu bytes, expected %d\n", + (u_long) size, lines * bpl); + return SANE_STATUS_INVAL; + } + + DBG (1, "Got %lu bytes\n", (u_long) size); + + /* Reverse: */ + if (s->bpp != 1) + { + if (s->bpp != 6) + for (i = 0; i < size; i++) + buf[i] = 255 - buf[i]; + else + for (i = 0; i < size; i++) + buf[i] = 255 - ((buf[i] * 256.0f) / 64.0f); + } + + s->lines_available -= lines; + + return SANE_STATUS_GOOD; +} + + +static SANE_Status +attach (const char *devname, AgfaFocus_Device ** devp) +{ +#define ATTACH_SCSI_INQ_LEN 55 + const Byte scsi_inquiry[] = + { + 0x12, 0x00, 0x00, 0x00, ATTACH_SCSI_INQ_LEN, 0x00 + }; + Byte result[ATTACH_SCSI_INQ_LEN]; + + int fd; + AgfaFocus_Device *dev; + SANE_Status status; + size_t size; + int i; + + for (dev = agfafocus_devices; dev; dev = dev->next) + if (strcmp (dev->sane.name, devname) == 0) + { + if (devp) + *devp = dev; + return SANE_STATUS_GOOD; + } + + DBG (3, "attach: opening %s\n", devname); + status = sanei_scsi_open (devname, &fd, sense_handler, 0); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: open failed (%s)\n", sane_strstatus (status)); + return SANE_STATUS_INVAL; + } + + DBG (4, "attach: sending INQUIRY\n"); + size = sizeof (result); + status = sanei_scsi_cmd (fd, scsi_inquiry, sizeof (scsi_inquiry), + result, &size); + if (status != SANE_STATUS_GOOD || size != ATTACH_SCSI_INQ_LEN) + { + DBG (1, "attach: inquiry failed (%s)\n", sane_strstatus (status)); + sanei_scsi_close (fd); + return status; + } + + status = test_ready (fd); + sanei_scsi_close (fd); + if (status != SANE_STATUS_GOOD) + return status; + + /* The structure send by the scanner after inquiry is not SCSI-2 + compatible. The standard manufacturer/model fields are no ASCII + strings, but ? At offset 36 my SIEMENS scanner identifies as an + AGFA one ?! */ + + if (result[0] != 6 || strncmp ((char *)result + 36, "AGFA0", 5)) + { + DBG (1, "attach: device doesn't look like a Siemens 9036 scanner\n"); + return SANE_STATUS_INVAL; + } + + DBG (4, "Inquiry data:\n"); + DBG (4, "-----------\n"); + for (i = 5; i < 55; i += 10) + DBG (4, "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", + result[i], result[i + 1], result[i + 2], result[i + 3], result[i + 4], + result[i + 5], result[i + 6], result[i + 7], result[i + 8], + result[i + 9]); + + dev = malloc (sizeof (*dev)); + + if (!dev) + return SANE_STATUS_NO_MEM; + + memset (dev, 0, sizeof (*dev)); + + dev->sane.name = strdup (devname); + if (!strncmp ((char *)result + 36, "AGFA01", 6)) { + dev->sane.vendor = "AGFA"; + dev->sane.model = "Focus GS Scanner (6 bit)"; + dev->upload_user_defines = SANE_TRUE; + dev->type = AGFAGRAY64; + } else if (!strncmp ((char *)result + 36, "AGFA02", 6)) { + dev->sane.vendor = "AGFA"; + dev->sane.model = "Focus Lineart Scanner"; + dev->upload_user_defines = SANE_FALSE; + dev->type = AGFALINEART; + } else if (!strncmp ((char *)result + 36, "AGFA03", 6)) { + dev->sane.vendor = "AGFA"; + dev->sane.model = "Focus II"; + dev->upload_user_defines = SANE_TRUE; + dev->type = AGFAGRAY256; + } else if (!strncmp ((char *)result + 36, "AGFA04", 6)) { + dev->sane.vendor = "AGFA"; + dev->sane.model = "Focus Color"; + dev->upload_user_defines = SANE_TRUE; + dev->type = AGFACOLOR; + } else { + free (dev); + DBG (1, "attach: device looks like an AGFA scanner, but wasn't recognised\n"); + return SANE_STATUS_INVAL; + } + dev->sane.type = "flatbed scanner"; + + dev->transparent = result[45] & 0x80 ? SANE_TRUE : SANE_FALSE; + dev->analoglog = result[46] & 0x80 ? SANE_TRUE : SANE_FALSE; + dev->tos5 = result[46] & 0x05 ? SANE_TRUE : SANE_FALSE; + dev->quality = result[47] & 0x40 ? SANE_TRUE : SANE_FALSE; + dev->disconnect = result[47] & 0x80 ? SANE_TRUE : SANE_FALSE; + + DBG (4, "\n"); + DBG (4, "scan modes:\n"); + DBG (4, "-----------\n"); + DBG (4, "three pass color mode: %s\n", dev->type >= AGFACOLOR ? "yes" : "no"); + DBG (4, "8 bit gray mode: %s\n", dev->type >= AGFAGRAY64 ? "yes" : "no"); + DBG (4, "uploadable matrices: %s\n", dev->upload_user_defines ? "yes" : "no"); + DBG (4, "transparency: %s\n", dev->transparent ? "yes" : "no"); + DBG (4, "disconnect: %s\n", dev->disconnect ? "yes" : "no"); + DBG (4, "quality calibration: %s\n", dev->quality ? "yes" : "no"); + + dev->handle = 0; + + DBG (3, "attach: found AgfaFocus scanner model\n"); + + ++num_devices; + dev->next = agfafocus_devices; + agfafocus_devices = dev; + + if (devp) + *devp = dev; + + return SANE_STATUS_GOOD; +} + +static SANE_Status +do_eof (AgfaFocus_Scanner *s) +{ + if (s->pipe >= 0) + { + close (s->pipe); + s->pipe = -1; + } + return SANE_STATUS_EOF; +} + + +static SANE_Status +do_cancel (AgfaFocus_Scanner * s) +{ + s->scanning = SANE_FALSE; + s->pass = 0; + + do_eof (s); + + if (s->reader_pid != -1) + { + int exit_status; + + /* ensure child knows it's time to stop: */ + sanei_thread_kill (s->reader_pid); + sanei_thread_waitpid (s->reader_pid, &exit_status); + s->reader_pid = -1; + } + + if (s->fd >= 0) + { + stop_scan (s->fd); + release_unit (s->fd); + sanei_scsi_close (s->fd); + s->fd = -1; + } + + return SANE_STATUS_CANCELLED; +} + + +static SANE_Status +init_options (AgfaFocus_Scanner * s) +{ + int i; + + /* Hardware Limitations: must be static ! */ + static const SANE_Int dpi_list[] = + {8, 100, 200, 300, 400, 500, 600, 700, 800}; + + static const SANE_Range percentage_range = + { + -100 << SANE_FIXED_SCALE_SHIFT, /* minimum */ + 100 << SANE_FIXED_SCALE_SHIFT, /* maximum */ + 1 << SANE_FIXED_SCALE_SHIFT /* quantization */ + }; + + static const SANE_Range sharpen_range = + {0, 7, 1}; + static const SANE_Range exposure_range = + {0, 100, 0}; + static const SANE_Range attenuation_range = + { + 0 << SANE_FIXED_SCALE_SHIFT, /* minimum */ + 100 << SANE_FIXED_SCALE_SHIFT, /* maximum */ + 1 << SANE_FIXED_SCALE_SHIFT /* quantization */ + }; + + + static const SANE_Range x_range = + {0, SANE_FIX (8.27 * MM_PER_INCH), 0}; + static const SANE_Range y_range = + {0, SANE_FIX (12.72 * MM_PER_INCH), 0}; + + /* ------ */ + + memset (s->opt, 0, sizeof (s->opt)); + memset (s->val, 0, sizeof (s->val)); + + for (i = 0; i < NUM_OPTIONS; ++i) + { + s->opt[i].size = sizeof (SANE_Word); + s->opt[i].cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT; + } + + s->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS; + s->opt[OPT_NUM_OPTS].desc = SANE_DESC_NUM_OPTIONS; + s->opt[OPT_NUM_OPTS].type = SANE_TYPE_INT; + s->opt[OPT_NUM_OPTS].cap = SANE_CAP_SOFT_DETECT; + s->val[OPT_NUM_OPTS].w = NUM_OPTIONS; + + /* "Mode" group: */ + + s->opt[OPT_MODE_GROUP].title = "Scan Mode"; + s->opt[OPT_MODE_GROUP].desc = ""; + s->opt[OPT_MODE_GROUP].type = SANE_TYPE_GROUP; + s->opt[OPT_MODE_GROUP].cap = 0; + s->opt[OPT_MODE_GROUP].constraint_type = SANE_CONSTRAINT_NONE; + + /* scan mode */ + s->opt[OPT_MODE].name = SANE_NAME_SCAN_MODE; + s->opt[OPT_MODE].title = SANE_TITLE_SCAN_MODE; + s->opt[OPT_MODE].desc = SANE_DESC_SCAN_MODE; + s->opt[OPT_MODE].type = SANE_TYPE_STRING; + + switch (s->hw->type) + { + case AGFACOLOR: + s->opt[OPT_MODE].size = max_string_size (focuscolor_mode_list); + s->opt[OPT_MODE].constraint.string_list = focuscolor_mode_list; + s->val[OPT_MODE].s = strdup (focuscolor_mode_list[0]); + break; + case AGFAGRAY256: + s->opt[OPT_MODE].size = max_string_size (focusii_mode_list); + s->opt[OPT_MODE].constraint.string_list = focusii_mode_list; + s->val[OPT_MODE].s = strdup (focusii_mode_list[0]); + break; + default: + s->opt[OPT_MODE].size = max_string_size (focus_mode_list); + s->opt[OPT_MODE].constraint.string_list = focus_mode_list; + s->val[OPT_MODE].s = strdup (focus_mode_list[0]); + break; + } + + s->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST; + + /* resolution */ + s->opt[OPT_RESOLUTION].name = SANE_NAME_SCAN_RESOLUTION; + s->opt[OPT_RESOLUTION].title = SANE_TITLE_SCAN_RESOLUTION; + s->opt[OPT_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION; + s->opt[OPT_RESOLUTION].type = SANE_TYPE_INT; + s->opt[OPT_RESOLUTION].unit = SANE_UNIT_DPI; + s->opt[OPT_RESOLUTION].constraint_type = SANE_CONSTRAINT_WORD_LIST; + s->opt[OPT_RESOLUTION].constraint.word_list = dpi_list; + s->val[OPT_RESOLUTION].w = 100; + + s->opt[OPT_SOURCE].name = SANE_NAME_SCAN_SOURCE; + s->opt[OPT_SOURCE].title = SANE_TITLE_SCAN_SOURCE; + s->opt[OPT_SOURCE].desc = SANE_DESC_SCAN_SOURCE; + s->opt[OPT_SOURCE].type = SANE_TYPE_STRING; + s->opt[OPT_SOURCE].unit = SANE_UNIT_NONE; + if (!s->hw->transparent) + s->opt[OPT_SOURCE].cap |= SANE_CAP_INACTIVE; + else + s->opt[OPT_SOURCE].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_SOURCE].constraint_type = SANE_CONSTRAINT_STRING_LIST; + s->opt[OPT_SOURCE].constraint.string_list = source_list; + s->opt[OPT_SOURCE].size = max_string_size (source_list); + s->val[OPT_SOURCE].s = strdup (source_list[0]); + + /* "Geometry" group: */ + s->opt[OPT_GEOMETRY_GROUP].title = "Geometry"; + s->opt[OPT_GEOMETRY_GROUP].desc = ""; + s->opt[OPT_GEOMETRY_GROUP].type = SANE_TYPE_GROUP; + s->opt[OPT_GEOMETRY_GROUP].cap = SANE_CAP_ADVANCED; + s->opt[OPT_GEOMETRY_GROUP].constraint_type = SANE_CONSTRAINT_NONE; + + /* top-left x */ + s->opt[OPT_TL_X].name = SANE_NAME_SCAN_TL_X; + s->opt[OPT_TL_X].title = SANE_TITLE_SCAN_TL_X; + s->opt[OPT_TL_X].desc = SANE_DESC_SCAN_TL_X; + s->opt[OPT_TL_X].type = SANE_TYPE_FIXED; + s->opt[OPT_TL_X].unit = SANE_UNIT_MM; + s->opt[OPT_TL_X].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_TL_X].constraint.range = &x_range; + s->val[OPT_TL_X].w = 0; + + /* top-left y */ + s->opt[OPT_TL_Y].name = SANE_NAME_SCAN_TL_Y; + s->opt[OPT_TL_Y].title = SANE_TITLE_SCAN_TL_Y; + s->opt[OPT_TL_Y].desc = SANE_DESC_SCAN_TL_Y; + s->opt[OPT_TL_Y].type = SANE_TYPE_FIXED; + s->opt[OPT_TL_Y].unit = SANE_UNIT_MM; + s->opt[OPT_TL_Y].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_TL_Y].constraint.range = &y_range; + s->val[OPT_TL_Y].w = 0; + + /* bottom-right x */ + s->opt[OPT_BR_X].name = SANE_NAME_SCAN_BR_X; + s->opt[OPT_BR_X].title = SANE_TITLE_SCAN_BR_X; + s->opt[OPT_BR_X].desc = SANE_DESC_SCAN_BR_X; + s->opt[OPT_BR_X].type = SANE_TYPE_FIXED; + s->opt[OPT_BR_X].unit = SANE_UNIT_MM; + s->opt[OPT_BR_X].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_BR_X].constraint.range = &x_range; + s->val[OPT_BR_X].w = x_range.max; + + /* bottom-right y */ + s->opt[OPT_BR_Y].name = SANE_NAME_SCAN_BR_Y; + s->opt[OPT_BR_Y].title = SANE_TITLE_SCAN_BR_Y; + s->opt[OPT_BR_Y].desc = SANE_DESC_SCAN_BR_Y; + s->opt[OPT_BR_Y].type = SANE_TYPE_FIXED; + s->opt[OPT_BR_Y].unit = SANE_UNIT_MM; + s->opt[OPT_BR_Y].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_BR_Y].constraint.range = &y_range; + s->val[OPT_BR_Y].w = y_range.max; + + /* "Enhancement" group: */ + s->opt[OPT_ENHANCEMENT_GROUP].title = "Enhancement"; + s->opt[OPT_ENHANCEMENT_GROUP].desc = ""; + s->opt[OPT_ENHANCEMENT_GROUP].type = SANE_TYPE_GROUP; + s->opt[OPT_ENHANCEMENT_GROUP].cap = 0; + s->opt[OPT_ENHANCEMENT_GROUP].constraint_type = SANE_CONSTRAINT_NONE; + + /* exposure */ + s->opt[OPT_EXPOSURE].name = "exposure"; + s->opt[OPT_EXPOSURE].title = "Exposure"; + s->opt[OPT_EXPOSURE].desc = "Analog exposure control."; + s->opt[OPT_EXPOSURE].type = SANE_TYPE_INT; + s->opt[OPT_EXPOSURE].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_EXPOSURE].unit = SANE_UNIT_PERCENT; + s->opt[OPT_EXPOSURE].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_EXPOSURE].constraint.range = &exposure_range; + s->val[OPT_EXPOSURE].w = 23; + + /* brightness automatic correct */ + s->opt[OPT_AUTO_BRIGHTNESS].name = "adjust-bright"; + s->opt[OPT_AUTO_BRIGHTNESS].title = "Automatic brightness correction"; + s->opt[OPT_AUTO_BRIGHTNESS].desc = "Turns on automatic brightness correction of " + "the acquired image. This makes the scanner do a two pass scan to analyse the " + "brightness of the image before it's scanned."; + s->opt[OPT_AUTO_BRIGHTNESS].type = SANE_TYPE_BOOL; + s->val[OPT_AUTO_BRIGHTNESS].b = SANE_FALSE; + + /* contrast automatic correct */ + s->opt[OPT_AUTO_CONTRAST].name = "adjust-contr"; + s->opt[OPT_AUTO_CONTRAST].title = "Automatic contrast correction"; + s->opt[OPT_AUTO_CONTRAST].desc = "Turns on automatic contrast correction of " + "the acquired image. This makes the scanner do a two pass scan to analyse " + "the contrast of the image to be scanned."; + s->opt[OPT_AUTO_CONTRAST].type = SANE_TYPE_BOOL; + s->val[OPT_AUTO_CONTRAST].b = SANE_FALSE; + + /* brightness */ + s->opt[OPT_BRIGHTNESS].name = SANE_NAME_BRIGHTNESS; + s->opt[OPT_BRIGHTNESS].title = SANE_TITLE_BRIGHTNESS; + s->opt[OPT_BRIGHTNESS].desc = "Controls the brightness of the acquired image. " + "When automatic brightness is enabled, this can be used to adjust the selected brightness."; + s->opt[OPT_BRIGHTNESS].type = SANE_TYPE_FIXED; + s->opt[OPT_BRIGHTNESS].unit = SANE_UNIT_PERCENT; + s->opt[OPT_BRIGHTNESS].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_BRIGHTNESS].constraint.range = &percentage_range; + s->val[OPT_BRIGHTNESS].w = 0; + + /* contrast */ + s->opt[OPT_CONTRAST].name = SANE_NAME_CONTRAST; + s->opt[OPT_CONTRAST].title = SANE_TITLE_CONTRAST; + s->opt[OPT_CONTRAST].desc = "Controls the contrast of the acquired image. " + "When automatic contrast is enabled, this can be used to adjust the selected contrast."; + s->opt[OPT_CONTRAST].type = SANE_TYPE_FIXED; + s->opt[OPT_CONTRAST].unit = SANE_UNIT_PERCENT; + s->opt[OPT_CONTRAST].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_CONTRAST].constraint.range = &percentage_range; + s->val[OPT_CONTRAST].w = 0; + + /* halftone patterns */ + s->opt[OPT_HALFTONE_PATTERN].name = SANE_NAME_HALFTONE_PATTERN; + s->opt[OPT_HALFTONE_PATTERN].title = SANE_TITLE_HALFTONE_PATTERN; + s->opt[OPT_HALFTONE_PATTERN].desc = SANE_DESC_HALFTONE_PATTERN; + s->opt[OPT_HALFTONE_PATTERN].type = SANE_TYPE_STRING; + s->opt[OPT_HALFTONE_PATTERN].size = 32; + s->opt[OPT_HALFTONE_PATTERN].constraint_type = SANE_CONSTRAINT_STRING_LIST; + if (s->hw->upload_user_defines) + { + s->opt[OPT_HALFTONE_PATTERN].constraint.string_list = halftone_upload_list; + s->val[OPT_HALFTONE_PATTERN].s = strdup (halftone_upload_list[0]); + } + else + { + s->opt[OPT_HALFTONE_PATTERN].constraint.string_list = halftone_list; + s->val[OPT_HALFTONE_PATTERN].s = strdup (halftone_list[0]); + } + + /* red-attenuation */ + s->opt[OPT_ATTENUATION_RED].name = "red-attenuation"; + s->opt[OPT_ATTENUATION_RED].title = "Red attenuation"; + s->opt[OPT_ATTENUATION_RED].desc = "Controls the red attenuation of the acquired image. " + "Higher values mean less impact on scanned image."; + s->opt[OPT_ATTENUATION_RED].type = SANE_TYPE_FIXED; + s->opt[OPT_ATTENUATION_RED].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_RED].unit = SANE_UNIT_PERCENT; + s->opt[OPT_ATTENUATION_RED].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_ATTENUATION_RED].constraint.range = &attenuation_range; + s->val[OPT_ATTENUATION_RED].w = SANE_FIX (50.0); + + /* green-attenuation */ + s->opt[OPT_ATTENUATION_GREEN].name = "green-attenuation"; + s->opt[OPT_ATTENUATION_GREEN].title = "Green attenuation"; + s->opt[OPT_ATTENUATION_GREEN].desc = "Controls the green attenuation of the acquired image. " + "Higher values mean less impact on scanned image."; + s->opt[OPT_ATTENUATION_GREEN].type = SANE_TYPE_FIXED; + s->opt[OPT_ATTENUATION_GREEN].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_GREEN].unit = SANE_UNIT_PERCENT; + s->opt[OPT_ATTENUATION_GREEN].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_ATTENUATION_GREEN].constraint.range = &attenuation_range; + s->val[OPT_ATTENUATION_GREEN].w = SANE_FIX (50.0); + + /* blue-attenuation */ + s->opt[OPT_ATTENUATION_BLUE].name = "blue-attenuation"; + s->opt[OPT_ATTENUATION_BLUE].title = "Blue attenuation"; + s->opt[OPT_ATTENUATION_BLUE].desc = "Controls the blue attenuation of the acquired image. " + "Higher values mean less impact on scanned image."; + s->opt[OPT_ATTENUATION_BLUE].type = SANE_TYPE_FIXED; + s->opt[OPT_ATTENUATION_BLUE].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_BLUE].unit = SANE_UNIT_PERCENT; + s->opt[OPT_ATTENUATION_BLUE].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_ATTENUATION_BLUE].constraint.range = &attenuation_range; + s->val[OPT_ATTENUATION_BLUE].w = SANE_FIX (50.0); + + /* quality-calibration */ + s->opt[OPT_QUALITY].name = SANE_NAME_QUALITY_CAL; + s->opt[OPT_QUALITY].title = SANE_TITLE_QUALITY_CAL; + s->opt[OPT_QUALITY].desc = "Controls the calibration that will be done in the " + "scanner. Less calibration result in faster scanner times."; + s->opt[OPT_QUALITY].type = SANE_TYPE_STRING; + s->opt[OPT_QUALITY].size = 32; + if (!s->hw->quality) + s->opt[OPT_QUALITY].cap |= SANE_CAP_INACTIVE; + else + s->opt[OPT_QUALITY].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_QUALITY].constraint_type = SANE_CONSTRAINT_STRING_LIST; + s->opt[OPT_QUALITY].constraint.string_list = quality_list; + s->val[OPT_QUALITY].s = strdup (quality_list[1]); + + /* sharpening */ + s->opt[OPT_SHARPEN].name = "sharpen"; + s->opt[OPT_SHARPEN].title = "Sharpening"; + s->opt[OPT_SHARPEN].desc = "Controls the sharpening that will be " + "done by the video processor in the scanner."; + s->opt[OPT_SHARPEN].type = SANE_TYPE_INT; + s->opt[OPT_SHARPEN].unit = SANE_UNIT_NONE; + s->opt[OPT_SHARPEN].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_SHARPEN].constraint.range = &sharpen_range; + s->val[OPT_SHARPEN].w = 1; + + return SANE_STATUS_GOOD; +} + +static SANE_Status +attach_one (const char *dev) +{ + attach (dev, 0); + return SANE_STATUS_GOOD; +} + +SANE_Status +sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize) +{ + char dev_name[PATH_MAX]; + size_t len; + FILE *fp; + + authorize = authorize; /* silence gcc */ + + DBG_INIT (); + + sanei_thread_init (); + + if (version_code) + *version_code = SANE_VERSION_CODE (SANE_CURRENT_MAJOR, V_MINOR, 0); + + fp = sanei_config_open ("agfafocus.conf"); + if (!fp) + { + /* default to /dev/scanner instead of insisting on config file */ + attach ("/dev/scanner", 0); + return SANE_STATUS_GOOD; + } + + while (sanei_config_read (dev_name, sizeof (dev_name), fp)) + { + if (dev_name[0] == '#') /* ignore line comments */ + continue; + len = strlen (dev_name); + + if (!len) + continue; /* ignore empty lines */ + + sanei_config_attach_matching_devices (dev_name, attach_one); + } + fclose (fp); + return SANE_STATUS_GOOD; +} + +void +sane_exit (void) +{ + AgfaFocus_Device *dev, *next; + + for (dev = agfafocus_devices; dev; dev = next) + { + next = dev->next; + if (dev->handle) + sane_close (dev->handle); + free (dev); + } +} + +SANE_Status +sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only) +{ + static const SANE_Device **devlist = 0; + AgfaFocus_Device *dev; + int i; + + local_only = local_only; /* silence gcc */ + + if (devlist) + free (devlist); + + devlist = malloc ((num_devices + 1) * sizeof (devlist[0])); + if (!devlist) + return SANE_STATUS_NO_MEM; + + for (dev = agfafocus_devices, i = 0; i < num_devices; dev = dev->next) + devlist[i++] = &dev->sane; + devlist[i++] = 0; + + *device_list = devlist; + return SANE_STATUS_GOOD; +} + +SANE_Status +sane_open (SANE_String_Const devicename, SANE_Handle * handle) +{ + AgfaFocus_Device *dev; + SANE_Status status; + AgfaFocus_Scanner *s; + + if (devicename[0]) + { + status = attach (devicename, &dev); + if (status != SANE_STATUS_GOOD) + return status; + } + else + { + /* empty devicname -> use first device */ + dev = agfafocus_devices; + } + + if (!dev) + return SANE_STATUS_INVAL; + + if (dev->handle) + return SANE_STATUS_DEVICE_BUSY; + + s = malloc (sizeof (*s)); + if (!s) + return SANE_STATUS_NO_MEM; + + memset (s, 0, sizeof (*s)); + s->scanning = SANE_FALSE; + + s->fd = -1; + s->hw = dev; + s->hw->handle = s; + + init_options (s); + + *handle = s; + return SANE_STATUS_GOOD; +} + +void +sane_close (SANE_Handle handle) +{ + AgfaFocus_Scanner *s = handle; + + if (s->scanning) + do_cancel (handle); + + s->hw->handle = 0; + + free (handle); +} + +const SANE_Option_Descriptor * +sane_get_option_descriptor (SANE_Handle handle, SANE_Int option) +{ + AgfaFocus_Scanner *s = handle; + + if ((unsigned) option >= NUM_OPTIONS) + return 0; + return s->opt + option; +} + +SANE_Status +sane_control_option (SANE_Handle handle, SANE_Int option, + SANE_Action action, void *val, SANE_Int * info) +{ + AgfaFocus_Scanner *s = handle; + SANE_Status status; + + if (info) + *info = 0; + + if (s->scanning) + return SANE_STATUS_DEVICE_BUSY; + + if (option >= NUM_OPTIONS || !SANE_OPTION_IS_ACTIVE (s->opt[option].cap)) + return SANE_STATUS_UNSUPPORTED; + + if (action == SANE_ACTION_GET_VALUE) + { + switch (option) + { + case OPT_RESOLUTION: + case OPT_TL_X: + case OPT_TL_Y: + case OPT_BR_X: + case OPT_BR_Y: + case OPT_NUM_OPTS: + case OPT_BRIGHTNESS: + case OPT_CONTRAST: + case OPT_SHARPEN: + case OPT_EXPOSURE: + case OPT_ATTENUATION_RED: + case OPT_ATTENUATION_GREEN: + case OPT_ATTENUATION_BLUE: + *(SANE_Word *) val = s->val[option].w; + break; + case OPT_AUTO_BRIGHTNESS: + case OPT_AUTO_CONTRAST: + *(SANE_Bool *) val = s->val[option].b; + break; + case OPT_MODE: + case OPT_HALFTONE_PATTERN: + case OPT_QUALITY: + case OPT_SOURCE: + strcpy (val, s->val[option].s); + return (SANE_STATUS_GOOD); + default: + return SANE_STATUS_UNSUPPORTED; + } + + } + else if (action == SANE_ACTION_SET_VALUE) + { + if (!SANE_OPTION_IS_SETTABLE (s->opt[option].cap)) + return SANE_STATUS_UNSUPPORTED; + + status = sanei_constrain_value (s->opt + option, val, info); + if (status != SANE_STATUS_GOOD) + return status; + + switch (option) + { + 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; + case OPT_SHARPEN: + case OPT_EXPOSURE: + case OPT_ATTENUATION_RED: + case OPT_ATTENUATION_GREEN: + case OPT_ATTENUATION_BLUE: + case OPT_BRIGHTNESS: + case OPT_CONTRAST: + s->val[option].w = *(SANE_Word *) val; + break; + case OPT_AUTO_BRIGHTNESS: + case OPT_AUTO_CONTRAST: + s->val[option].b = *(SANE_Bool *) val; + break; + case OPT_MODE: + if (strcmp (s->val[option].s, (SANE_String) val)) + { + if (info) + *info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS; + + if (s->val[option].s) + free (s->val[option].s); + + s->val[option].s = strdup (val); + + if (strcmp (s->val[option].s, "Gray (6 bit)") == 0) + s->mode = GRAY6BIT; + else if (strcmp (s->val[option].s, "Gray (8 bit)") == 0) + s->mode = GRAY8BIT; + else if (strcmp (s->val[option].s, "Color (18 bit)") == 0) + s->mode = COLOR18BIT; + else if (strcmp (s->val[option].s, "Color (24 bit)") == 0) + s->mode = COLOR24BIT; + else + s->mode = LINEART; + + switch (s->mode) + { + case LINEART: + s->opt[OPT_HALFTONE_PATTERN].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_SHARPEN].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_EXPOSURE].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_RED].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_GREEN].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_BLUE].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_BRIGHTNESS].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_CONTRAST].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_BRIGHTNESS].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_CONTRAST].cap &= ~SANE_CAP_INACTIVE; + break; + + case GRAY6BIT: + s->opt[OPT_SHARPEN].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_EXPOSURE].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_RED].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_GREEN].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_BLUE].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_BRIGHTNESS].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_CONTRAST].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_BRIGHTNESS].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_CONTRAST].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE; + break; + + case GRAY8BIT: + s->opt[OPT_BRIGHTNESS].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_CONTRAST].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_BRIGHTNESS].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_CONTRAST].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_EXPOSURE].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_RED].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_GREEN].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_BLUE].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_SHARPEN].cap |= SANE_CAP_INACTIVE; + break; + + case COLOR18BIT: + s->opt[OPT_EXPOSURE].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_RED].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_GREEN].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_BLUE].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_BRIGHTNESS].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_CONTRAST].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_BRIGHTNESS].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_CONTRAST].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_SHARPEN].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE; + break; + + case COLOR24BIT: + s->opt[OPT_EXPOSURE].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_RED].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_GREEN].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_ATTENUATION_BLUE].cap &= ~SANE_CAP_INACTIVE; + s->opt[OPT_BRIGHTNESS].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_CONTRAST].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_BRIGHTNESS].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_AUTO_CONTRAST].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_SHARPEN].cap |= SANE_CAP_INACTIVE; + s->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE; + break; + } + } + break; + case OPT_SOURCE: + case OPT_QUALITY: + case OPT_HALFTONE_PATTERN: + if (info && strcmp (s->val[option].s, (SANE_String) val)) + *info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS; + if (s->val[option].s) + free (s->val[option].s); + s->val[option].s = strdup (val); + break; + default: + return SANE_STATUS_UNSUPPORTED; + } + + } + else + { + return SANE_STATUS_UNSUPPORTED; + } + + return SANE_STATUS_GOOD; +} + +SANE_Status +sane_get_parameters (SANE_Handle handle, SANE_Parameters * params) +{ + AgfaFocus_Scanner *s = handle; + + if (!s->scanning) + { + double width, height, dpi; + const char *quality; + const char *original; + + memset (&s->params, 0, sizeof (s->params)); + + width = SANE_UNFIX (s->val[OPT_BR_X].w - s->val[OPT_TL_X].w); + height = SANE_UNFIX (s->val[OPT_BR_Y].w - s->val[OPT_TL_Y].w); + dpi = s->val[OPT_RESOLUTION].w; + + /* make best-effort guess at what parameters will look like once + scanning starts. */ + if (dpi > 0.0 && width > 0.0 && height > 0.0) + { + double dots_per_mm = dpi / MM_PER_INCH; + + s->params.pixels_per_line = width * dots_per_mm + 0.5; + s->params.lines = height * dots_per_mm + 0.5; + } + + /* Should we specify calibration quality? */ + + if (SANE_OPTION_IS_ACTIVE (s->opt[OPT_QUALITY].cap)) + { + DBG(3, " -------------- setting quality\n"); + quality = s->val[OPT_QUALITY].s; + if (strcmp (quality, "Low") == 0 ) + s->quality = 255; + else if (strcmp (quality, "High") == 0) + s->quality = 1; + else + s->quality = 0; + } + else + s->quality = 0; + + /* Should we select source type? */ + + if (SANE_OPTION_IS_ACTIVE (s->opt[OPT_SOURCE].cap)) + { + DBG(3, " -------------- setting source\n"); + original = s->val[OPT_SOURCE].s; + if (strcmp (original, "Transparency") == 0) + s->original = 0; + else + s->original = 1; + } + else + s->original = 0; + + s->exposure = ((s->val[OPT_EXPOSURE].w * (255.0f - 80.0f)) / 100.0f) + 80.0f; + s->r_att = (SANE_UNFIX (s->val[OPT_ATTENUATION_RED].w) * 20.0f) / 100.0f; + s->g_att = (SANE_UNFIX (s->val[OPT_ATTENUATION_GREEN].w) * 20.0f) / 100.0f; + s->b_att = (SANE_UNFIX (s->val[OPT_ATTENUATION_BLUE].w) * 20.0f) / 100.0f; + s->tonecurve = 0; + + switch (s->mode) + { + case LINEART: + { + const char *halftone; + + s->image_composition = 0; + + /* in 1 bpp mode, lines need to be 8 pixel length */ + + if (s->params.pixels_per_line % 8) + s->params.pixels_per_line += 8 - (s->params.pixels_per_line % 8); + + s->params.format = SANE_FRAME_GRAY; + s->params.bytes_per_line = s->params.pixels_per_line / 8; + s->bpp = s->params.depth = 1; + + halftone = s->val[OPT_HALFTONE_PATTERN].s; + if (strcmp (halftone, "1") == 0 ) + s->halftone = 1; + else if (strcmp (halftone, "Dispersed dot 4x4") == 0) + s->halftone = 2; + else if (strcmp (halftone, "Round (Clustered dot 4x4)") == 0) + s->halftone = 3; + else if (strcmp (halftone, "Diamond (Clustered dot 4x4)") == 0) + s->halftone = 4; + else if (strcmp (halftone, "User defined") == 0) + s->halftone = 5; + else + s->halftone = 0; + + s->edge = s->val[OPT_SHARPEN].w; + } + break; + + case GRAY6BIT: + s->image_composition = 2; + + s->params.format = SANE_FRAME_GRAY; + s->params.bytes_per_line = s->params.pixels_per_line; + s->bpp = 6; + s->params.depth = 8; + s->edge = s->val[OPT_SHARPEN].w; + + break; + + case GRAY8BIT: + s->image_composition = 2; + + s->params.format = SANE_FRAME_GRAY; + s->params.bytes_per_line = s->params.pixels_per_line; + s->bpp = s->params.depth = 8; + + break; + + case COLOR18BIT: + s->image_composition = 5; + + s->params.format = SANE_FRAME_RED; + s->params.bytes_per_line = s->params.pixels_per_line; + s->bpp = 6; + s->params.depth = 8; + s->edge = s->val[OPT_SHARPEN].w; + + break; + + case COLOR24BIT: + s->image_composition = 5; + + s->params.format = SANE_FRAME_RED; + s->params.bytes_per_line = s->params.pixels_per_line; + s->bpp = s->params.depth = 8; + + break; + } + + s->pass = 0; + + /*s->params.bytes_per_line = + (s->params.pixels_per_line + (8 - s->params.depth)) + / (8 / s->params.depth);*/ + } + else + if (s->mode == COLOR18BIT || + s->mode == COLOR24BIT) + s->params.format = SANE_FRAME_RED + s->pass; + + s->params.last_frame = (s->params.format != SANE_FRAME_RED && s->params.format != SANE_FRAME_GREEN); + + if (params) + *params = s->params; + return SANE_STATUS_GOOD; +} + +/* This function is executed as a child process. The reason this is + executed as a subprocess is because some (most?) generic SCSI + interfaces block a SCSI request until it has completed. With a + subprocess, we can let it block waiting for the request to finish + while the main process can go about to do more important things + (such as recognizing when the user presses a cancel button). + + + WARNING: Since this is executed as a subprocess, it's NOT possible + to update any of the variables in the main process (in particular + the scanner state cannot be updated). */ +static int +reader_process (void *scanner) +{ + AgfaFocus_Scanner *s = (AgfaFocus_Scanner *) scanner; + int fd = s->reader_pipe; + + SANE_Status status; + SANE_Byte *data; + int lines_read = 0; + int lines_per_buffer; + int bytes_per_line = 0, total_lines = 0; + int i; + sigset_t sigterm_set; + sigset_t ignore_set; + struct SIGACTION act; + + if (sanei_thread_is_forked()) close (s->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); + + sigemptyset (&sigterm_set); + sigaddset (&sigterm_set, SIGTERM); + + if (!s->hw->disconnect) + wait_ready (s->fd); + + status = get_read_sizes (s->fd, &s->lines_available, &bytes_per_line, &total_lines); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open: get_read_sizes() failed: %s\n", + sane_strstatus (status)); + do_cancel (s); + close (fd); + return 1; + } + + if (!s->lines_available || !bytes_per_line || !total_lines || bytes_per_line < s->params.bytes_per_line) + { + DBG (1, "open: invalid sizes: %d, %d, %d\n", + s->lines_available, bytes_per_line, total_lines); + do_cancel (s); + close (fd); + return 1; + } + + lines_per_buffer = sanei_scsi_max_request_size / bytes_per_line; + if (!lines_per_buffer) + { + close (fd); + return 2; /* resolution is too high */ + } + + data = malloc (lines_per_buffer * bytes_per_line); + if (!data) + { + DBG (1, "open malloc(%lu) failed.\n", (u_long) lines_per_buffer * bytes_per_line); + do_cancel (s); + close (fd); + return 1; + } + + while (lines_read < s->params.lines) + { + int lines = lines_per_buffer; + + if (s->lines_available == 0) + { + /* No lines in scanner? Scan some more */ + status = request_more_data (s); + + if (status != SANE_STATUS_GOOD) + { + close (fd); + return 1; + } + } + + /* We only request as many lines as there are already scanned */ + if (lines > s->lines_available) + lines = s->lines_available; + + DBG (1, "Requesting %d lines, in scanner: %d, total: %d\n", lines, + s->lines_available, s->params.lines); + + status = read_data (s, data, lines, bytes_per_line); + + if (status != SANE_STATUS_GOOD) + { + DBG (1, "sane_read: read_data() failed (%s)\n", + sane_strstatus (status)); + do_cancel (s); + close (fd); + return 1; + } + + /* Sometimes the scanner will return more bytes per line than + requested, so we copy only what we wanted. */ + + for (i = 0; i < lines; i++) + if (write (fd, data + i * bytes_per_line, s->params.bytes_per_line) != s->params.bytes_per_line) + { + do_cancel (s); + close (fd); + return 1; + } + + lines_read += lines; + } + + close (fd); + return 0; +} + +SANE_Status +sane_start (SANE_Handle handle) +{ + AgfaFocus_Scanner *s = handle; + SANE_Status status; + int fds[2]; + + /* First make sure we have a current parameter set. Some of the + parameters will be overwritten below, but that's OK. */ + + status = sane_get_parameters (s, 0); + if (status != SANE_STATUS_GOOD) + return status; + + /* don't initialise scanner if we're doing a three-pass scan */ + + if (s->pass == 0) + { + if (s->fd < 0) + { + status = sanei_scsi_open (s->hw->sane.name, &s->fd, sense_handler, 0); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open: open of %s failed: %s\n", + s->hw->sane.name, sane_strstatus (status)); + s->fd = -1; + return status; + } + } + + status = test_ready (s->fd); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open: test_ready() failed: %s\n", sane_strstatus (status)); + sanei_scsi_close (s->fd); + s->fd = -1; + return status; + } + + status = reserve_unit (s->fd); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open: reserve_unit() failed: %s\n", sane_strstatus (status)); + sanei_scsi_close (s->fd); + s->fd = -1; + return status; + } + + status = set_window (s); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open: set_window() failed: %s\n", sane_strstatus (status)); + release_unit (s->fd); + sanei_scsi_close (s->fd); + s->fd = -1; + return status; + } + + { + int matrix[256] = { + 2, 60, 16, 56, 3, 57, 13, 53, + 34, 18, 48, 32, 35, 19, 45, 29, + 10, 50, 6, 63, 11, 51, 7, 61, + 42, 26, 38, 22, 43, 27, 39, 23, + 4, 58, 14, 54, 1, 59, 15, 55, + 36, 20, 46, 30, 33, 17, 47, 31, + 12, 52, 8, 62, 9, 49, 5, 63, + 44, 28, 40, 24, 41, 25, 37, 21 + }; + + status = upload_dither_matrix (s, 8, 8, matrix); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open: upload_dither_matrix() failed: %s\n", sane_strstatus (status)); + release_unit (s->fd); + sanei_scsi_close (s->fd); + s->fd = -1; + return status; + } + } + + s->scanning = SANE_TRUE; + + status = start_scan (s->fd, SANE_FALSE); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open: start_scan() failed: %s\n", sane_strstatus (status)); + do_cancel (s); + return status; + } + } + else + { + /* continue three-pass scan */ + + status = start_scan (s->fd, SANE_TRUE); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open: start_scan() failed: %s\n", sane_strstatus (status)); + do_cancel (s); + return status; + } + } + + if (pipe (fds) < 0) + return SANE_STATUS_IO_ERROR; + + s->pipe = fds[0]; + s->reader_pipe = fds[1]; + s->reader_pid = sanei_thread_begin (reader_process, (void *) s); + + if (sanei_thread_is_forked()) close (s->reader_pipe); + + return SANE_STATUS_GOOD; +} + +SANE_Status +sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len, + SANE_Int * len) +{ + AgfaFocus_Scanner *s = handle; + ssize_t nread; + + *len = 0; + + nread = read (s->pipe, buf, max_len); + DBG (3, "read %ld bytes\n", (long) nread); + + if (!s->scanning) + return do_cancel (s); + + if (nread < 0) { + if (errno == EAGAIN) { + return SANE_STATUS_GOOD; + } else { + do_cancel (s); + return SANE_STATUS_IO_ERROR; + } + } + + *len = nread; + + if (nread == 0) { + s->pass++; + return do_eof (s); + } + return SANE_STATUS_GOOD; +} + +void +sane_cancel (SANE_Handle handle) +{ + AgfaFocus_Scanner *s = handle; + + if (s->reader_pid != -1) + sanei_thread_kill (s->reader_pid); + s->scanning = SANE_FALSE; +} + +SANE_Status +sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking) +{ + AgfaFocus_Scanner *s = handle; + + if (!s->scanning) + return SANE_STATUS_INVAL; + + if (fcntl (s->pipe, F_SETFL, non_blocking ? O_NONBLOCK : 0) < 0) + return SANE_STATUS_IO_ERROR; + + return SANE_STATUS_GOOD; +} + +SANE_Status +sane_get_select_fd (SANE_Handle handle, SANE_Int * fd) +{ + AgfaFocus_Scanner *s = handle; + + if (!s->scanning) + return SANE_STATUS_INVAL; + + *fd = s->pipe; + return SANE_STATUS_GOOD; +} -- cgit v1.2.3