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Diffstat (limited to 'backend/ricoh.c')
| -rw-r--r-- | backend/ricoh.c | 1025 |
1 files changed, 1025 insertions, 0 deletions
diff --git a/backend/ricoh.c b/backend/ricoh.c new file mode 100644 index 0000000..a349179 --- /dev/null +++ b/backend/ricoh.c @@ -0,0 +1,1025 @@ +/* sane - Scanner Access Now Easy. + Copyright (C) 1998, Feico W. Dillema + 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. +*/ + +/* + $Id$ + This file implements a SANE backend for Ricoh flatbed scanners. +*/ + +#include "../include/sane/config.h" + +#include <limits.h> +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <time.h> +#include <sys/time.h> +#include <unistd.h> +#include <ctype.h> + +#include "../include/sane/sane.h" +#include "../include/sane/saneopts.h" +#include "../include/sane/sanei_scsi.h" + +#define BACKEND_NAME ricoh +#include "../include/sane/sanei_backend.h" + +#ifndef PATH_MAX +# define PATH_MAX 1024 +#endif + +#include "../include/sane/sanei_config.h" +#define RICOH_CONFIG_FILE "ricoh.conf" + +#include "ricoh.h" + +#define MAX(a,b) ((a) > (b) ? (a) : (b)) + +static int num_devices = 0; +static Ricoh_Device *first_dev = NULL; +static Ricoh_Scanner *first_handle = NULL; +static int is50 = 0; + +#include "ricoh-scsi.c" + +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; +} + +static SANE_Status +attach (const char *devnam, Ricoh_Device ** devp) +{ + SANE_Status status; + Ricoh_Device *dev; + + int fd; + struct inquiry_data ibuf; + struct measurements_units_page mup; + struct ricoh_window_data wbuf; + size_t buf_size; + char *str; + DBG (11, ">> attach\n"); + + for (dev = first_dev; dev; dev = dev->next) + { + if (strcmp (dev->sane.name, devnam) == 0) + { + if (devp) + *devp = dev; + return (SANE_STATUS_GOOD); + } + } + + DBG (3, "attach: opening %s\n", devnam); + status = sanei_scsi_open (devnam, &fd, NULL, NULL); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: open failed: %s\n", sane_strstatus (status)); + return (status); + } + + DBG (3, "attach: sending INQUIRY\n"); + memset (&ibuf, 0, sizeof (ibuf)); + buf_size = sizeof(ibuf); + status = inquiry (fd, &ibuf, &buf_size); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: inquiry failed: %s\n", sane_strstatus (status)); + sanei_scsi_close (fd); + return (status); + } + + if (ibuf.devtype != 6 + || strncmp ((char *)ibuf.vendor, "RICOH", 5) != 0 + || (strncmp ((char *)ibuf.product, "IS50", 4) != 0 + && strncmp ((char *)ibuf.product, "IS60", 4) != 0)) + { + DBG (1, "attach: device doesn't look like the Ricoh scanner I know\n"); + sanei_scsi_close (fd); + return (SANE_STATUS_INVAL); + } + is50 = (strncmp ((char *)ibuf.product, "IS50", 4) == 0); + + DBG (3, "attach: sending TEST_UNIT_READY\n"); + status = test_unit_ready (fd); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: test unit ready failed (%s)\n", + sane_strstatus (status)); + sanei_scsi_close (fd); + return (status); + } + + DBG (3, "attach: sending OBJECT POSITION\n"); + status = object_position (fd); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: OBJECT POSTITION failed\n"); + sanei_scsi_close (fd); + return (SANE_STATUS_INVAL); + } + + memset (&mup, 0, sizeof (mup)); + mup.page_code = MEASUREMENTS_PAGE; + mup.parameter_length = 0x06; + mup.bmu = INCHES; + mup.mud[0] = (DEFAULT_MUD >> 8) & 0xff; + mup.mud[1] = (DEFAULT_MUD & 0xff); + +#if 0 + DBG (3, "attach: sending MODE SELECT\n"); + status = mode_select (fd, (struct mode_pages *) &mup); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: MODE_SELECT failed\n"); + sanei_scsi_close (fd); + return (SANE_STATUS_INVAL); + } +#endif + +#if 0 + DBG (3, "attach: sending MODE SENSE\n"); + memset (&mup, 0, sizeof (mup)); + status = mode_sense (fd, (struct mode_pages *) &mup, PC_CURRENT | MEASUREMENTS_PAGE); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: MODE_SENSE failed\n"); + sanei_scsi_close (fd); + return (SANE_STATUS_INVAL); + } +#endif + + DBG (3, "attach: sending GET WINDOW\n"); + memset (&wbuf, 0, sizeof (wbuf)); + status = get_window (fd, &wbuf); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: GET_WINDOW failed %d\n", status); + sanei_scsi_close (fd); + DBG (11, "<< attach\n"); + return (SANE_STATUS_INVAL); + } + + sanei_scsi_close (fd); + + dev = malloc (sizeof (*dev)); + if (!dev) + return (SANE_STATUS_NO_MEM); + memset (dev, 0, sizeof (*dev)); + + dev->sane.name = strdup (devnam); + dev->sane.vendor = "RICOH"; + str = malloc (16 + 1); + memset (str, 0, sizeof (str)); + strncpy (str, (char *)ibuf.product, sizeof(ibuf.product)); + strncpy (str + sizeof(ibuf.revision), (char *)ibuf.revision, sizeof(ibuf.revision)); + str[sizeof(ibuf.product) + sizeof(ibuf.revision)] = '\0'; + dev->sane.model = str; + dev->sane.type = "flatbed scanner"; + + DBG (5, "dev->sane.name = %s\n", dev->sane.name); + DBG (5, "dev->sane.vendor = %s\n", dev->sane.vendor); + DBG (5, "dev->sane.model = %s\n", dev->sane.model); + DBG (5, "dev->sane.type = %s\n", dev->sane.type); + + dev->info.xres_default = _2btol(wbuf.x_res); + dev->info.yres_default = _2btol(wbuf.y_res); + dev->info.image_mode_default = wbuf.image_comp; + + /* if you throw the MRIF bit the brighness control reverses too */ + /* so I reverse the reversal in software for symmetry's sake */ + /* I should make this into an option */ + + if (wbuf.image_comp == RICOH_GRAYSCALE || wbuf.image_comp == RICOH_DITHERED_MONOCHROME) + { + dev->info.brightness_default = 256 - wbuf.brightness; + if (is50) + dev->info.contrast_default = wbuf.contrast; + else + dev->info.contrast_default = 256 - wbuf.contrast; + } + else /* wbuf.image_comp == RICOH_BINARY_MONOCHROME */ + { + dev->info.brightness_default = wbuf.brightness; + dev->info.contrast_default = wbuf.contrast; + } + +#if 1 + dev->info.bmu = mup.bmu; + dev->info.mud = _2btol(mup.mud); + if (dev->info.mud == 0) { + /* The RICOH says it uses points as default Basic Measurement Unit */ + /* but gives a Measurement Unit Divisor of zero */ + /* So, we set it to the default (SCSI-standard) of 1200 */ + /* with BMU in inches, i.e. 1200 points equal 1 inch */ + dev->info.bmu = INCHES; + dev->info.mud = DEFAULT_MUD; + } +#else + dev->info.bmu = INCHES; + dev->info.mud = DEFAULT_MUD; +#endif + + DBG (5, "xres_default=%d\n", dev->info.xres_default); + DBG (5, "xres_range.max=%d\n", dev->info.xres_range.max); + DBG (5, "xres_range.min=%d\n", dev->info.xres_range.min); + + DBG (5, "yres_default=%d\n", dev->info.yres_default); + DBG (5, "yres_range.max=%d\n", dev->info.yres_range.max); + DBG (5, "yres_range.min=%d\n", dev->info.yres_range.min); + + DBG (5, "x_range.max=%d\n", dev->info.x_range.max); + DBG (5, "y_range.max=%d\n", dev->info.y_range.max); + + DBG (5, "image_mode=%d\n", dev->info.image_mode_default); + + DBG (5, "brightness=%d\n", dev->info.brightness_default); + DBG (5, "contrast=%d\n", dev->info.contrast_default); + + DBG (5, "bmu=%d\n", dev->info.bmu); + DBG (5, "mud=%d\n", dev->info.mud); + + ++num_devices; + dev->next = first_dev; + first_dev = dev; + + if (devp) + *devp = dev; + + DBG (11, "<< attach\n"); + return (SANE_STATUS_GOOD); +} + +static SANE_Status +attach_one(const char *devnam) +{ + attach (devnam, NULL); + return SANE_STATUS_GOOD; +} + +static SANE_Status +init_options (Ricoh_Scanner * s) +{ + int i; + DBG (11, ">> init_options\n"); + + 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; + s->opt[OPT_MODE].size = max_string_size (mode_list); + s->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST; + s->opt[OPT_MODE].constraint.string_list = mode_list; + s->val[OPT_MODE].s = strdup (mode_list[s->hw->info.image_mode_default]); + + /* x resolution */ + s->opt[OPT_X_RESOLUTION].name = "X" SANE_NAME_SCAN_RESOLUTION; + s->opt[OPT_X_RESOLUTION].title = "X " SANE_TITLE_SCAN_RESOLUTION; + s->opt[OPT_X_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION; + s->opt[OPT_X_RESOLUTION].type = SANE_TYPE_INT; + s->opt[OPT_X_RESOLUTION].unit = SANE_UNIT_DPI; + s->opt[OPT_X_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_X_RESOLUTION].constraint.range = &is60_res_range; + s->val[OPT_X_RESOLUTION].w = s->hw->info.xres_default; + if (is50) + s->opt[OPT_X_RESOLUTION].constraint.range = &is50_res_range; + else + s->opt[OPT_X_RESOLUTION].constraint.range = &is60_res_range; + + /* y resolution */ + s->opt[OPT_Y_RESOLUTION].name = "Y" SANE_NAME_SCAN_RESOLUTION; + s->opt[OPT_Y_RESOLUTION].title = "Y " SANE_TITLE_SCAN_RESOLUTION; + s->opt[OPT_Y_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION; + s->opt[OPT_Y_RESOLUTION].type = SANE_TYPE_INT; + s->opt[OPT_Y_RESOLUTION].unit = SANE_UNIT_DPI; + s->opt[OPT_Y_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE; + s->val[OPT_Y_RESOLUTION].w = s->hw->info.yres_default; + if (is50) + s->opt[OPT_Y_RESOLUTION].constraint.range = &is50_res_range; + else + s->opt[OPT_Y_RESOLUTION].constraint.range = &is60_res_range; + + /* "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_INT; + s->opt[OPT_TL_X].unit = SANE_UNIT_PIXEL; + s->opt[OPT_TL_X].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_TL_X].constraint.range = &default_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_INT; + s->opt[OPT_TL_Y].unit = SANE_UNIT_PIXEL; + s->opt[OPT_TL_Y].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_TL_Y].constraint.range = &default_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_INT; + s->opt[OPT_BR_X].unit = SANE_UNIT_PIXEL; + s->opt[OPT_BR_X].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_BR_X].constraint.range = &default_x_range; + s->val[OPT_BR_X].w = default_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_INT; + s->opt[OPT_BR_Y].unit = SANE_UNIT_PIXEL; + s->opt[OPT_BR_Y].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_BR_Y].constraint.range = &default_y_range; + s->val[OPT_BR_Y].w = default_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; + + /* brightness */ + s->opt[OPT_BRIGHTNESS].name = SANE_NAME_BRIGHTNESS; + s->opt[OPT_BRIGHTNESS].title = SANE_TITLE_BRIGHTNESS; + s->opt[OPT_BRIGHTNESS].desc = SANE_DESC_BRIGHTNESS; + s->opt[OPT_BRIGHTNESS].type = SANE_TYPE_INT; + s->opt[OPT_BRIGHTNESS].unit = SANE_UNIT_NONE; + s->opt[OPT_BRIGHTNESS].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_BRIGHTNESS].constraint.range = &u8_range; + s->val[OPT_BRIGHTNESS].w = s->hw->info.brightness_default; + + /* contrast */ + s->opt[OPT_CONTRAST].name = SANE_NAME_CONTRAST; + s->opt[OPT_CONTRAST].title = SANE_TITLE_CONTRAST; + s->opt[OPT_CONTRAST].desc = SANE_DESC_CONTRAST; + s->opt[OPT_CONTRAST].type = SANE_TYPE_INT; + s->opt[OPT_CONTRAST].unit = SANE_UNIT_NONE; + s->opt[OPT_CONTRAST].constraint_type = SANE_CONSTRAINT_RANGE; + s->opt[OPT_CONTRAST].constraint.range = &u8_range; + s->val[OPT_CONTRAST].w = s->hw->info.contrast_default; + + DBG (11, "<< init_options\n"); + return SANE_STATUS_GOOD; +} + +static SANE_Status +do_cancel (Ricoh_Scanner * s) +{ + SANE_Status status; + DBG (11, ">> do_cancel\n"); + + DBG (3, "cancel: sending OBJECT POSITION\n"); + status = object_position (s->fd); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "cancel: OBJECT POSTITION failed\n"); + } + + s->scanning = SANE_FALSE; + + if (s->fd >= 0) + { + sanei_scsi_close (s->fd); + s->fd = -1; + } + + DBG (11, "<< do_cancel\n"); + return (SANE_STATUS_CANCELLED); +} + +SANE_Status +sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize) +{ + char devnam[PATH_MAX] = "/dev/scanner"; + FILE *fp; + + authorize = authorize; /* silence gcc */ + + DBG_INIT (); + DBG (11, ">> sane_init\n"); + +#if defined PACKAGE && defined VERSION + DBG (2, "sane_init: " PACKAGE " " VERSION "\n"); +#endif + + if (version_code) + *version_code = SANE_VERSION_CODE (SANE_CURRENT_MAJOR, V_MINOR, 0); + + fp = sanei_config_open(RICOH_CONFIG_FILE); + if (fp) + { + char line[PATH_MAX], *lp; + size_t len; + + /* read config file */ + while (sanei_config_read (line, sizeof (line), fp)) + { + if (line[0] == '#') /* ignore line comments */ + continue; + len = strlen (line); + + if (!len) + continue; /* ignore empty lines */ + + /* skip white space: */ + for (lp = line; isspace(*lp); ++lp); + strcpy (devnam, lp); + } + fclose (fp); + } + sanei_config_attach_matching_devices (devnam, attach_one); + DBG (11, "<< sane_init\n"); + return SANE_STATUS_GOOD; +} + +void +sane_exit (void) +{ + Ricoh_Device *dev, *next; + DBG (11, ">> sane_exit\n"); + + for (dev = first_dev; dev; dev = next) + { + next = dev->next; + free ((void *) dev->sane.name); + free ((void *) dev->sane.model); + free (dev); + } + + DBG (11, "<< sane_exit\n"); +} + +SANE_Status +sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only) +{ + static const SANE_Device **devlist = 0; + Ricoh_Device *dev; + int i; + + local_only = local_only; /* silence gcc */ + + DBG (11, ">> sane_get_devices\n"); + + if (devlist) + free (devlist); + devlist = malloc ((num_devices + 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++] = 0; + + *device_list = devlist; + + DBG (11, "<< sane_get_devices\n"); + return SANE_STATUS_GOOD; +} + +SANE_Status +sane_open (SANE_String_Const devnam, SANE_Handle * handle) +{ + SANE_Status status; + Ricoh_Device *dev; + Ricoh_Scanner *s; + DBG (11, ">> sane_open\n"); + + if (devnam[0] == '\0') + { + for (dev = first_dev; dev; dev = dev->next) + { + if (strcmp (dev->sane.name, devnam) == 0) + break; + } + + if (!dev) + { + status = attach (devnam, &dev); + if (status != SANE_STATUS_GOOD) + return (status); + } + } + else + { + dev = first_dev; + } + + if (!dev) + return (SANE_STATUS_INVAL); + + s = malloc (sizeof (*s)); + if (!s) + return SANE_STATUS_NO_MEM; + memset (s, 0, sizeof (*s)); + + s->fd = -1; + s->hw = dev; + + init_options (s); + + s->next = first_handle; + first_handle = s; + + *handle = s; + + DBG (11, "<< sane_open\n"); + return SANE_STATUS_GOOD; +} + +void +sane_close (SANE_Handle handle) +{ + Ricoh_Scanner *s = (Ricoh_Scanner *) handle; + DBG (11, ">> sane_close\n"); + + if (s->fd != -1) + sanei_scsi_close (s->fd); + free (s); + + DBG (11, ">> sane_close\n"); +} + +const SANE_Option_Descriptor * +sane_get_option_descriptor (SANE_Handle handle, SANE_Int option) +{ + Ricoh_Scanner *s = handle; + DBG (11, ">> sane_get_option_descriptor\n"); + + if ((unsigned) option >= NUM_OPTIONS) + return (0); + + DBG (11, "<< sane_get_option_descriptor\n"); + return (s->opt + option); +} + +SANE_Status +sane_control_option (SANE_Handle handle, SANE_Int option, + SANE_Action action, void *val, SANE_Int * info) +{ + Ricoh_Scanner *s = handle; + SANE_Status status; + SANE_Word cap; + DBG (11, ">> sane_control_option\n"); + + if (info) + *info = 0; + + if (s->scanning) + return (SANE_STATUS_DEVICE_BUSY); + if (option >= NUM_OPTIONS) + return (SANE_STATUS_INVAL); + + cap = s->opt[option].cap; + if (!SANE_OPTION_IS_ACTIVE (cap)) + return (SANE_STATUS_INVAL); + + if (action == SANE_ACTION_GET_VALUE) + { + switch (option) + { + /* word options: */ + case OPT_X_RESOLUTION: + case OPT_Y_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: + *(SANE_Word *) val = s->val[option].w; + return (SANE_STATUS_GOOD); + + /* string options: */ + case OPT_MODE: + strcpy (val, s->val[option].s); + return (SANE_STATUS_GOOD); + } + } + else if (action == SANE_ACTION_SET_VALUE) + { + if (!SANE_OPTION_IS_SETTABLE (cap)) + return (SANE_STATUS_INVAL); + + status = sanei_constrain_value (s->opt + option, val, info); + if (status != SANE_STATUS_GOOD) + return status; + + switch (option) + { + /* (mostly) side-effect-free word options: */ + case OPT_X_RESOLUTION: + case OPT_Y_RESOLUTION: + case OPT_TL_X: + case OPT_TL_Y: + case OPT_BR_X: + case OPT_BR_Y: + if (info && s->val[option].w != *(SANE_Word *) val) + *info |= SANE_INFO_RELOAD_PARAMS; + /* fall through */ + case OPT_NUM_OPTS: + case OPT_BRIGHTNESS: + case OPT_CONTRAST: + s->val[option].w = *(SANE_Word *) val; + return (SANE_STATUS_GOOD); + + case OPT_MODE: + 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); + return (SANE_STATUS_GOOD); + } + } + + DBG (11, "<< sane_control_option\n"); + return (SANE_STATUS_INVAL); +} + +SANE_Status +sane_get_parameters (SANE_Handle handle, SANE_Parameters * params) +{ + Ricoh_Scanner *s = handle; + DBG (11, ">> sane_get_parameters\n"); + + if (!s->scanning) + { + int width, length, xres, yres; + const char *mode; + + memset (&s->params, 0, sizeof (s->params)); + + width = s->val[OPT_BR_X].w - s->val[OPT_TL_X].w; + length = s->val[OPT_BR_Y].w - s->val[OPT_TL_Y].w; + xres = s->val[OPT_X_RESOLUTION].w; + yres = s->val[OPT_Y_RESOLUTION].w; + + /* make best-effort guess at what parameters will look like once + scanning starts. */ + if (xres > 0 && yres > 0 && width > 0 && length > 0) + { + s->params.pixels_per_line = width * xres / s->hw->info.mud; + s->params.lines = length * yres / s->hw->info.mud; + } + + mode = s->val[OPT_MODE].s; + if (strcmp (mode, SANE_VALUE_SCAN_MODE_LINEART) == 0 || strcmp (mode, SANE_VALUE_SCAN_MODE_HALFTONE) == 0) + { + s->params.format = SANE_FRAME_GRAY; + s->params.bytes_per_line = s->params.pixels_per_line / 8; + /* the Ricoh truncates to the byte boundary, so: chop! */ + s->params.pixels_per_line = s->params.bytes_per_line * 8; + s->params.depth = 1; + } + else /* if (strcmp (mode, SANE_VALUE_SCAN_MODE_GRAY) == 0) */ + { + s->params.format = SANE_FRAME_GRAY; + s->params.bytes_per_line = s->params.pixels_per_line; + s->params.depth = 8; + } + s->params.last_frame = SANE_TRUE; + } + + if (params) + *params = s->params; + + DBG (1, "%d pixels per line, %d bytes, %d lines high, total %lu bytes, " + "dpi=%d\n", s->params.pixels_per_line, s->params.bytes_per_line, + s->params.lines, (u_long) s->bytes_to_read, s->val[OPT_Y_RESOLUTION].w); + + DBG (11, "<< sane_get_parameters\n"); + return (SANE_STATUS_GOOD); +} + + +SANE_Status +sane_start (SANE_Handle handle) +{ + char *mode_str; + Ricoh_Scanner *s = handle; + SANE_Status status; + struct ricoh_window_data wbuf; + struct measurements_units_page mup; + + DBG (11, ">> sane_start\n"); + + /* 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; + + status = sanei_scsi_open (s->hw->sane.name, &s->fd, 0, 0); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "open of %s failed: %s\n", + s->hw->sane.name, sane_strstatus (status)); + return (status); + } + + mode_str = s->val[OPT_MODE].s; + s->xres = s->val[OPT_X_RESOLUTION].w; + s->yres = s->val[OPT_Y_RESOLUTION].w; + s->ulx = s->val[OPT_TL_X].w; + s->uly = s->val[OPT_TL_Y].w; + s->width = s->val[OPT_BR_X].w - s->val[OPT_TL_X].w; + s->length = s->val[OPT_BR_Y].w - s->val[OPT_TL_Y].w; + s->brightness = s->val[OPT_BRIGHTNESS].w; + s->contrast = s->val[OPT_CONTRAST].w; + s->bpp = s->params.depth; + if (strcmp (mode_str, SANE_VALUE_SCAN_MODE_LINEART) == 0) + { + s->image_composition = RICOH_BINARY_MONOCHROME; + } + else if (strcmp (mode_str, SANE_VALUE_SCAN_MODE_HALFTONE) == 0) + { + s->image_composition = RICOH_DITHERED_MONOCHROME; + } + else if (strcmp (mode_str, SANE_VALUE_SCAN_MODE_GRAY) == 0) + { + s->image_composition = RICOH_GRAYSCALE; + } + + memset (&wbuf, 0, sizeof (wbuf)); + _lto2b(sizeof(wbuf) - 8, wbuf.len); + _lto2b(s->xres, wbuf.x_res); + _lto2b(s->yres, wbuf.y_res); + _lto4b(s->ulx, wbuf.x_org); + _lto4b(s->uly, wbuf.y_org); + _lto4b(s->width, wbuf.width); + _lto4b(s->length, wbuf.length); + + wbuf.image_comp = s->image_composition; + /* if you throw the MRIF bit the brighness control reverses too */ + /* so I reverse the reversal in software for symmetry's sake */ + if (wbuf.image_comp == RICOH_GRAYSCALE || wbuf.image_comp == RICOH_DITHERED_MONOCHROME) + { + if (wbuf.image_comp == RICOH_GRAYSCALE) + wbuf.mrif_filtering_gamma_id = (SANE_Byte) 0x90; + if (wbuf.image_comp == RICOH_DITHERED_MONOCHROME) + wbuf.mrif_filtering_gamma_id = (SANE_Byte) 0x10; + wbuf.brightness = 256 - (SANE_Byte) s->brightness; + if (is50) + wbuf.contrast = (SANE_Byte) s->contrast; + else + wbuf.contrast = 256 - (SANE_Byte) s->contrast; + } + else /* wbuf.image_comp == RICOH_BINARY_MONOCHROME */ + { + wbuf.mrif_filtering_gamma_id = (SANE_Byte) 0x00; + wbuf.brightness = (SANE_Byte) s->brightness; + wbuf.contrast = (SANE_Byte) s->contrast; + } + + wbuf.threshold = 0; + wbuf.bits_per_pixel = s->bpp; + + wbuf.halftone_pattern[0] = 2; + wbuf.halftone_pattern[1] = 0; + wbuf.pad_type = 3; + wbuf.bit_ordering[0] = 0; + wbuf.bit_ordering[1] = 3; + + DBG (5, "xres=%d\n", _2btol(wbuf.x_res)); + DBG (5, "yres=%d\n", _2btol(wbuf.y_res)); + DBG (5, "ulx=%d\n", _4btol(wbuf.x_org)); + DBG (5, "uly=%d\n", _4btol(wbuf.y_org)); + DBG (5, "width=%d\n", _4btol(wbuf.width)); + DBG (5, "length=%d\n", _4btol(wbuf.length)); + DBG (5, "image_comp=%d\n", wbuf.image_comp); + + DBG (11, "sane_start: sending SET WINDOW\n"); + status = set_window (s->fd, &wbuf); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "SET WINDOW failed: %s\n", sane_strstatus (status)); + return (status); + } + + DBG (11, "sane_start: sending GET WINDOW\n"); + memset (&wbuf, 0, sizeof (wbuf)); + status = get_window (s->fd, &wbuf); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "GET WINDOW failed: %s\n", sane_strstatus (status)); + return (status); + } + DBG (5, "xres=%d\n", _2btol(wbuf.x_res)); + DBG (5, "yres=%d\n", _2btol(wbuf.y_res)); + DBG (5, "ulx=%d\n", _4btol(wbuf.x_org)); + DBG (5, "uly=%d\n", _4btol(wbuf.y_org)); + DBG (5, "width=%d\n", _4btol(wbuf.width)); + DBG (5, "length=%d\n", _4btol(wbuf.length)); + DBG (5, "image_comp=%d\n", wbuf.image_comp); + + DBG (11, "sane_start: sending MODE SELECT\n"); + memset (&mup, 0, sizeof (mup)); + mup.page_code = MEASUREMENTS_PAGE; + mup.parameter_length = 0x06; + mup.bmu = INCHES; + mup.mud[0] = (DEFAULT_MUD >> 8) & 0xff; + mup.mud[1] = (DEFAULT_MUD & 0xff); + + status = mode_select (s->fd, (struct mode_pages *) &mup); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "attach: MODE_SELECT failed\n"); + return (SANE_STATUS_INVAL); + } + + status = trigger_scan (s->fd); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "start of scan failed: %s\n", sane_strstatus (status)); + return (status); + } + + /* Wait for scanner to become ready to transmit data */ + status = ricoh_wait_ready (s); + if (status != SANE_STATUS_GOOD) + { + DBG (1, "GET DATA STATUS failed: %s\n", sane_strstatus (status)); + return (status); + } + + s->bytes_to_read = s->params.bytes_per_line * s->params.lines; + + DBG (1, "%d pixels per line, %d bytes, %d lines high, total %lu bytes, " + "dpi=%d\n", s->params.pixels_per_line, s->params.bytes_per_line, + s->params.lines, (u_long) s->bytes_to_read, s->val[OPT_Y_RESOLUTION].w); + + s->scanning = SANE_TRUE; + + DBG (11, "<< sane_start\n"); + return (SANE_STATUS_GOOD); +} + +SANE_Status +sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len, + SANE_Int * len) +{ + Ricoh_Scanner *s = handle; + SANE_Status status; + size_t nread; + DBG (11, ">> sane_read\n"); + + *len = 0; + + DBG (11, "sane_read: bytes left to read: %ld\n", (u_long) s->bytes_to_read); + + if (s->bytes_to_read == 0) + { + do_cancel (s); + return (SANE_STATUS_EOF); + } + + if (!s->scanning) { + DBG (11, "sane_read: scanning is false!\n"); + return (do_cancel (s)); + } + + nread = max_len; + if (nread > s->bytes_to_read) + nread = s->bytes_to_read; + + DBG (11, "sane_read: read %ld bytes\n", (u_long) nread); + status = read_data (s->fd, buf, &nread); + if (status != SANE_STATUS_GOOD) + { + DBG (11, "sane_read: read error\n"); + do_cancel (s); + return (SANE_STATUS_IO_ERROR); + } + *len = nread; + s->bytes_to_read -= nread; + + DBG (11, "<< sane_read\n"); + return (SANE_STATUS_GOOD); +} + +void +sane_cancel (SANE_Handle handle) +{ + Ricoh_Scanner *s = handle; + DBG (11, ">> sane_cancel\n"); + + s->scanning = SANE_FALSE; + + DBG (11, "<< sane_cancel\n"); +} + +SANE_Status +sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking) +{ + handle = handle; /* silence gcc */ + non_blocking = non_blocking; /* silence gcc */ + + DBG (5, ">> sane_set_io_mode\n"); + DBG (5, "<< sane_set_io_mode\n"); + + return SANE_STATUS_UNSUPPORTED; +} + +SANE_Status +sane_get_select_fd (SANE_Handle handle, SANE_Int * fd) +{ + handle = handle; /* silence gcc */ + fd = fd; /* silence gcc */ + + DBG (5, ">> sane_get_select_fd\n"); + DBG (5, "<< sane_get_select_fd\n"); + + return SANE_STATUS_UNSUPPORTED; +} |