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sane-project-backends/backend/coolscan3.c

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76 KiB
C
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/*
* SANE - Scanner Access Now Easy.
* coolscan3.c
*
* This file implements a SANE backend for Nikon Coolscan film scanners.
*
* coolscan3.c is based on coolscan2.c, a work of András Major, Ariel Garcia
* and Giuseppe Sacco.
*
* Copyright (C) 2007-08 Tower Technologies
* Author: Alessandro Zummo <a.zummo@towertech.it>
*
* 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, version 2.
*
*/
/* ========================================================================= */
#include "../include/sane/config.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <time.h>
#include "../include/_stdint.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_usb.h"
#include "../include/sane/sanei_debug.h"
#include "../include/sane/sanei_config.h"
#define BACKEND_NAME coolscan3
#include "../include/sane/sanei_backend.h" /* must be last */
#define CS3_VERSION_MAJOR 1
#define CS3_VERSION_MINOR 0
#define CS3_REVISION 0
#define CS3_CONFIG_FILE "coolscan3.conf"
#define WSIZE (sizeof (SANE_Word))
/* ========================================================================= */
/* typedefs */
typedef enum
{
CS3_TYPE_UNKOWN,
CS3_TYPE_LS30,
CS3_TYPE_LS40,
CS3_TYPE_LS50,
CS3_TYPE_LS2000,
CS3_TYPE_LS4000,
CS3_TYPE_LS5000,
CS3_TYPE_LS8000
}
cs3_type_t;
typedef enum
{
CS3_INTERFACE_UNKNOWN,
CS3_INTERFACE_SCSI, /* includes IEEE1394 via SBP2 */
CS3_INTERFACE_USB
}
cs3_interface_t;
typedef enum
{
CS3_PHASE_NONE = 0x00,
CS3_PHASE_STATUS = 0x01,
CS3_PHASE_OUT = 0x02,
CS3_PHASE_IN = 0x03,
CS3_PHASE_BUSY = 0x04
}
cs3_phase_t;
typedef enum
{
CS3_SCAN_NORMAL,
CS3_SCAN_AE,
CS3_SCAN_AE_WB
}
cs3_scan_t;
typedef enum
{
CS3_STATUS_READY = 0,
CS3_STATUS_BUSY = 1,
CS3_STATUS_NO_DOCS = 2,
CS3_STATUS_PROCESSING = 4,
CS3_STATUS_ERROR = 8,
CS3_STATUS_REISSUE = 16,
CS3_STATUS_ALL = 31 /* sum of all others */
}
cs3_status_t;
typedef enum
{
CS3_OPTION_NUM = 0,
CS3_OPTION_PREVIEW,
CS3_OPTION_NEGATIVE,
CS3_OPTION_INFRARED,
CS3_OPTION_SAMPLES_PER_SCAN,
CS3_OPTION_DEPTH,
CS3_OPTION_EXPOSURE,
CS3_OPTION_EXPOSURE_R,
CS3_OPTION_EXPOSURE_G,
CS3_OPTION_EXPOSURE_B,
CS3_OPTION_SCAN_AE,
CS3_OPTION_SCAN_AE_WB,
CS3_OPTION_LUT_R,
CS3_OPTION_LUT_G,
CS3_OPTION_LUT_B,
CS3_OPTION_RES,
CS3_OPTION_RESX,
CS3_OPTION_RESY,
CS3_OPTION_RES_INDEPENDENT,
CS3_OPTION_PREVIEW_RESOLUTION,
CS3_OPTION_FRAME,
CS3_OPTION_FRAME_COUNT,
CS3_OPTION_SUBFRAME,
CS3_OPTION_XMIN,
CS3_OPTION_XMAX,
CS3_OPTION_YMIN,
CS3_OPTION_YMAX,
CS3_OPTION_LOAD,
CS3_OPTION_AUTOLOAD,
CS3_OPTION_EJECT,
CS3_OPTION_RESET,
CS3_OPTION_FOCUS_ON_CENTRE,
CS3_OPTION_FOCUS,
CS3_OPTION_AUTOFOCUS,
CS3_OPTION_FOCUSX,
CS3_OPTION_FOCUSY,
CS3_N_OPTIONS /* must be last -- counts number of enum items */
}
cs3_option_t;
typedef unsigned int cs3_pixel_t;
#define CS3_COLOR_MAX 10 /* 9 + 1, see cs3_colors */
/* Given that there is no way to give scanner vendor
* and model to the calling software, I have to use
* an ugly hack here. :( That's very sad. Suggestions
* that can provide the same features are appreciated.
*/
#ifndef SANE_COOKIE
#define SANE_COOKIE 0x0BADCAFE
struct SANE_Cookie
{
uint16_t version;
const char *vendor;
const char *model;
const char *revision;
};
#endif
typedef struct
{
/* magic bits :( */
uint32_t magic;
struct SANE_Cookie *cookie_ptr;
struct SANE_Cookie cookie;
/* interface */
cs3_interface_t interface;
int fd;
SANE_Byte *send_buf, *recv_buf;
size_t send_buf_size, recv_buf_size;
size_t n_cmd, n_send, n_recv;
/* device characteristics */
char vendor_string[9], product_string[17], revision_string[5];
cs3_type_t type;
int maxbits;
unsigned int resx_optical, resx_min, resx_max, *resx_list,
resx_n_list;
unsigned int resy_optical, resy_min, resy_max, *resy_list,
resy_n_list;
unsigned long boundaryx, boundaryy;
unsigned long frame_offset;
unsigned int unit_dpi;
double unit_mm;
int n_frames;
int focus_min, focus_max;
/* settings */
SANE_Bool preview, negative, infrared, autoload, autofocus, ae, aewb;
int samples_per_scan, depth, real_depth, bytes_per_pixel, shift_bits,
n_colors;
cs3_pixel_t n_lut;
cs3_pixel_t *lut_r, *lut_g, *lut_b, *lut_neutral;
unsigned long resx, resy, res, res_independent, res_preview;
unsigned long xmin, xmax, ymin, ymax;
int i_frame, frame_count;
double subframe;
unsigned int real_resx, real_resy, real_pitchx, real_pitchy;
unsigned long real_xoffset, real_yoffset, real_width, real_height,
logical_width, logical_height;
int odd_padding;
int block_padding;
double exposure, exposure_r, exposure_g, exposure_b;
unsigned long real_exposure[CS3_COLOR_MAX];
SANE_Bool focus_on_centre;
unsigned long focusx, focusy, real_focusx, real_focusy;
int focus;
/* status */
SANE_Bool scanning;
SANE_Byte *line_buf;
ssize_t n_line_buf, i_line_buf;
unsigned long sense_key, sense_asc, sense_ascq, sense_info;
unsigned long sense_code;
cs3_status_t status;
size_t xfer_position, xfer_bytes_total;
/* SANE stuff */
SANE_Option_Descriptor option_list[CS3_N_OPTIONS];
}
cs3_t;
/* ========================================================================= */
/* prototypes */
static SANE_Status cs3_open(const char *device, cs3_interface_t interface,
cs3_t ** sp);
static void cs3_close(cs3_t * s);
static SANE_Status cs3_attach(const char *dev);
static SANE_Status cs3_scsi_sense_handler(int fd, u_char * sense_buffer,
void *arg);
static SANE_Status cs3_parse_sense_data(cs3_t * s);
static void cs3_init_buffer(cs3_t * s);
static SANE_Status cs3_pack_byte(cs3_t * s, SANE_Byte byte);
static void cs3_pack_long(cs3_t * s, unsigned long val);
static void cs3_pack_word(cs3_t * s, unsigned long val);
static SANE_Status cs3_parse_cmd(cs3_t * s, char *text);
static SANE_Status cs3_grow_send_buffer(cs3_t * s);
static SANE_Status cs3_issue_cmd(cs3_t * s);
static cs3_phase_t cs3_phase_check(cs3_t * s);
static SANE_Status cs3_set_boundary(cs3_t * s);
static SANE_Status cs3_scanner_ready(cs3_t * s, int flags);
static SANE_Status cs3_page_inquiry(cs3_t * s, int page);
static SANE_Status cs3_full_inquiry(cs3_t * s);
static SANE_Status cs3_mode_select(cs3_t * s);
static SANE_Status cs3_reserve_unit(cs3_t * s);
static SANE_Status cs3_release_unit(cs3_t * s);
static SANE_Status cs3_execute(cs3_t * s);
static SANE_Status cs3_load(cs3_t * s);
static SANE_Status cs3_eject(cs3_t * s);
static SANE_Status cs3_reset(cs3_t * s);
static SANE_Status cs3_set_focus(cs3_t * s);
static SANE_Status cs3_autofocus(cs3_t * s);
static SANE_Status cs3_autoexposure(cs3_t * s, int wb);
static SANE_Status cs3_get_exposure(cs3_t * s);
static SANE_Status cs3_set_window(cs3_t * s, cs3_scan_t type);
static SANE_Status cs3_convert_options(cs3_t * s);
static SANE_Status cs3_scan(cs3_t * s, cs3_scan_t type);
static void *cs3_xmalloc(size_t size);
static void *cs3_xrealloc(void *p, size_t size);
static void cs3_xfree(const void *p);
/* ========================================================================= */
/* global variables */
static int cs3_colors[] = { 1, 2, 3, 9 };
static SANE_Device **device_list = NULL;
static int n_device_list = 0;
static cs3_interface_t try_interface = CS3_INTERFACE_UNKNOWN;
static int open_devices = 0;
/* ========================================================================= */
/* SANE entry points */
SANE_Status
sane_init(SANE_Int * version_code, SANE_Auth_Callback authorize)
{
DBG_INIT();
DBG(1, "coolscan3 backend, version %i.%i.%i initializing.\n",
CS3_VERSION_MAJOR, CS3_VERSION_MINOR, CS3_REVISION);
authorize = authorize; /* to shut up compiler */
if (version_code)
*version_code = SANE_VERSION_CODE(SANE_CURRENT_MAJOR, V_MINOR, 0);
sanei_usb_init();
return SANE_STATUS_GOOD;
}
void
sane_exit(void)
{
int i;
DBG(10, "%s\n", __func__);
for (i = 0; i < n_device_list; i++) {
cs3_xfree(device_list[i]->name);
cs3_xfree(device_list[i]->vendor);
cs3_xfree(device_list[i]->model);
cs3_xfree(device_list[i]);
}
cs3_xfree(device_list);
}
SANE_Status
sane_get_devices(const SANE_Device *** list, SANE_Bool local_only)
{
char line[PATH_MAX], *p;
FILE *config;
local_only = local_only; /* to shut up compiler */
DBG(10, "%s\n", __func__);
if (device_list)
DBG(6,
"sane_get_devices(): Device list already populated, not probing again.\n");
else {
if (open_devices) {
DBG(4,
"sane_get_devices(): Devices open, not scanning for scanners.\n");
return SANE_STATUS_IO_ERROR;
}
config = sanei_config_open(CS3_CONFIG_FILE);
if (config) {
DBG(4, "sane_get_devices(): Reading config file.\n");
while (sanei_config_read(line, sizeof(line), config)) {
p = line;
p += strspn(line, " \t");
if (strlen(p) && (p[0] != '\n')
&& (p[0] != '#'))
cs3_open(line, CS3_INTERFACE_UNKNOWN,
NULL);
}
fclose(config);
} else {
DBG(4, "sane_get_devices(): No config file found.\n");
cs3_open("auto", CS3_INTERFACE_UNKNOWN, NULL);
}
DBG(6, "%s: %i device(s) detected.\n",
__func__, n_device_list);
}
*list = (const SANE_Device **) device_list;
return SANE_STATUS_GOOD;
}
SANE_Status
sane_open(SANE_String_Const name, SANE_Handle * h)
{
SANE_Status status;
cs3_t *s;
int i_option;
unsigned int i_list;
SANE_Option_Descriptor o;
SANE_Word *word_list;
SANE_Range *range = NULL;
int alloc_failed = 0;
DBG(10, "%s\n", __func__);
status = cs3_open(name, CS3_INTERFACE_UNKNOWN, &s);
if (status != SANE_STATUS_GOOD)
return status;
*h = (SANE_Handle) s;
/* get device properties */
s->lut_r = s->lut_g = s->lut_b = s->lut_neutral = NULL;
s->resx_list = s->resy_list = NULL;
s->resx_n_list = s->resy_n_list = 0;
status = cs3_full_inquiry(s);
if (status != SANE_STATUS_GOOD)
return status;
status = cs3_mode_select(s);
if (status != SANE_STATUS_GOOD)
return status;
/* option descriptors */
for (i_option = 0; i_option < CS3_N_OPTIONS; i_option++) {
o.name = o.title = o.desc = NULL;
o.type = o.unit = o.cap = o.constraint_type = o.size = 0;
o.constraint.range = NULL; /* only one union member needs to be NULLed */
switch (i_option) {
case CS3_OPTION_NUM:
o.name = "";
o.title = SANE_TITLE_NUM_OPTIONS;
o.desc = SANE_DESC_NUM_OPTIONS;
o.type = SANE_TYPE_INT;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_DETECT;
break;
case CS3_OPTION_PREVIEW:
o.name = "preview";
o.title = "Preview mode";
o.desc = "Preview mode";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT |
SANE_CAP_ADVANCED;
break;
case CS3_OPTION_NEGATIVE:
o.name = "negative";
o.title = "Negative";
o.desc = "Negative film: make scanner invert colors";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
/*o.cap |= SANE_CAP_INACTIVE; */
break;
case CS3_OPTION_INFRARED:
o.name = "infrared";
o.title = "Read infrared channel";
o.desc = "Read infrared channel in addition to scan colors";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
#ifndef SANE_FRAME_RGBI
o.cap |= SANE_CAP_INACTIVE;
#endif
break;
case CS3_OPTION_SAMPLES_PER_SCAN:
o.name = "samples-per-scan";
o.title = "Samples per Scan";
o.desc = "Number of samples per scan";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_NONE;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
if (s->type != CS3_TYPE_LS2000 && s->type != CS3_TYPE_LS4000
&& s->type != CS3_TYPE_LS5000 && s->type != CS3_TYPE_LS8000)
o.cap |= SANE_CAP_INACTIVE;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *) cs3_xmalloc (sizeof (SANE_Range));
if (! range)
alloc_failed = 1;
else
{
range->min = 1;
range->max = 16;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_DEPTH:
o.name = "depth";
o.title = "Bit depth per channel";
o.desc = "Number of bits output by scanner for each channel";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_NONE;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_WORD_LIST;
word_list =
(SANE_Word *) cs3_xmalloc(2 *
sizeof(SANE_Word));
if (!word_list)
alloc_failed = 1;
else {
word_list[1] = 8;
word_list[2] = s->maxbits;
word_list[0] = 2;
o.constraint.word_list = word_list;
}
break;
case CS3_OPTION_EXPOSURE:
o.name = "exposure";
o.title = "Exposure multiplier";
o.desc = "Exposure multiplier for all channels";
o.type = SANE_TYPE_FIXED;
o.unit = SANE_UNIT_NONE;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = SANE_FIX(0.);
range->max = SANE_FIX(10.);
range->quant = SANE_FIX(0.1);
o.constraint.range = range;
}
break;
case CS3_OPTION_EXPOSURE_R:
o.name = "red-exposure";
o.title = "Red exposure time";
o.desc = "Exposure time for red channel";
o.type = SANE_TYPE_FIXED;
o.unit = SANE_UNIT_MICROSECOND;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = SANE_FIX(50.);
range->max = SANE_FIX(20000.);
range->quant = SANE_FIX(10.);
o.constraint.range = range;
}
break;
case CS3_OPTION_EXPOSURE_G:
o.name = "green-exposure";
o.title = "Green exposure time";
o.desc = "Exposure time for green channel";
o.type = SANE_TYPE_FIXED;
o.unit = SANE_UNIT_MICROSECOND;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = SANE_FIX(50.);
range->max = SANE_FIX(20000.);
range->quant = SANE_FIX(10.);
o.constraint.range = range;
}
break;
case CS3_OPTION_EXPOSURE_B:
o.name = "blue-exposure";
o.title = "Blue exposure time";
o.desc = "Exposure time for blue channel";
o.type = SANE_TYPE_FIXED;
o.unit = SANE_UNIT_MICROSECOND;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = SANE_FIX(50.);
range->max = SANE_FIX(20000.);
range->quant = SANE_FIX(10.);
o.constraint.range = range;
}
break;
case CS3_OPTION_LUT_R:
o.name = "red-gamma-table";
o.title = "LUT for red channel";
o.desc = "LUT for red channel";
o.type = SANE_TYPE_INT;
o.size = s->n_lut * WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 0;
range->max = s->n_lut - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_LUT_G:
o.name = "green-gamma-table";
o.title = "LUT for green channel";
o.desc = "LUT for green channel";
o.type = SANE_TYPE_INT;
o.size = s->n_lut * WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 0;
range->max = s->n_lut - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_LUT_B:
o.name = "blue-gamma-table";
o.title = "LUT for blue channel";
o.desc = "LUT for blue channel";
o.type = SANE_TYPE_INT;
o.size = s->n_lut * WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 0;
range->max = s->n_lut - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_LOAD:
o.name = "load";
o.title = "Load";
o.desc = "Load next slide";
o.type = SANE_TYPE_BUTTON;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
if (s->n_frames > 1)
o.cap |= SANE_CAP_INACTIVE;
break;
case CS3_OPTION_AUTOLOAD:
o.name = "autoload";
o.title = "Autoload";
o.desc = "Autoload slide before each scan";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
if (s->n_frames > 1)
o.cap |= SANE_CAP_INACTIVE;
break;
case CS3_OPTION_EJECT:
o.name = "eject";
o.title = "Eject";
o.desc = "Eject loaded medium";
o.type = SANE_TYPE_BUTTON;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
break;
case CS3_OPTION_RESET:
o.name = "reset";
o.title = "Reset scanner";
o.desc = "Initialize scanner";
o.type = SANE_TYPE_BUTTON;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
break;
case CS3_OPTION_RESX:
case CS3_OPTION_RES:
case CS3_OPTION_PREVIEW_RESOLUTION:
if (i_option == CS3_OPTION_PREVIEW_RESOLUTION) {
o.name = "preview-resolution";
o.title = "Preview resolution";
o.desc = "Scanning resolution for preview mode in dpi, affecting both x and y directions";
} else if (i_option == CS3_OPTION_RES) {
o.name = "resolution";
o.title = "Resolution";
o.desc = "Scanning resolution in dpi, affecting both x and y directions";
} else {
o.name = "x-resolution";
o.title = "X resolution";
o.desc = "Scanning resolution in dpi, affecting x direction only";
}
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_DPI;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
if (i_option == CS3_OPTION_RESX)
o.cap |= SANE_CAP_INACTIVE |
SANE_CAP_ADVANCED;
if (i_option == CS3_OPTION_PREVIEW_RESOLUTION)
o.cap |= SANE_CAP_ADVANCED;
o.constraint_type = SANE_CONSTRAINT_WORD_LIST;
word_list =
(SANE_Word *) cs3_xmalloc((s->resx_n_list + 1)
*
sizeof(SANE_Word));
if (!word_list)
alloc_failed = 1;
else {
for (i_list = 0; i_list < s->resx_n_list;
i_list++)
word_list[i_list + 1] =
s->resx_list[i_list];
word_list[0] = s->resx_n_list;
o.constraint.word_list = word_list;
}
break;
case CS3_OPTION_RESY:
o.name = "y-resolution";
o.title = "Y resolution";
o.desc = "Scanning resolution in dpi, affecting y direction only";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_DPI;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT |
SANE_CAP_INACTIVE | SANE_CAP_ADVANCED;
o.constraint_type = SANE_CONSTRAINT_WORD_LIST;
word_list =
(SANE_Word *) cs3_xmalloc((s->resy_n_list + 1)
*
sizeof(SANE_Word));
if (!word_list)
alloc_failed = 1;
else {
for (i_list = 0; i_list < s->resy_n_list;
i_list++)
word_list[i_list + 1] =
s->resy_list[i_list];
word_list[0] = s->resy_n_list;
o.constraint.word_list = word_list;
}
break;
case CS3_OPTION_RES_INDEPENDENT:
o.name = "independent-res";
o.title = "Independent x/y resolutions";
o.desc = "Enable independent controls for scanning resolution in x and y direction";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT |
SANE_CAP_INACTIVE | SANE_CAP_ADVANCED;
break;
case CS3_OPTION_FRAME:
o.name = "frame";
o.title = "Frame number";
o.desc = "Number of frame to be scanned, starting with 1";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_NONE;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
if (s->n_frames <= 1)
o.cap |= SANE_CAP_INACTIVE;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 1;
range->max = s->n_frames;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_FRAME_COUNT:
o.name = "frame-count";
o.title = "Frame count";
o.desc = "Amount of frames to scan";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_NONE;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
if (s->n_frames <= 1)
o.cap |= SANE_CAP_INACTIVE;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 1;
range->max = s->n_frames - s->i_frame + 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_SUBFRAME:
o.name = "subframe";
o.title = "Frame shift";
o.desc = "Fine position within the selected frame";
o.type = SANE_TYPE_FIXED;
o.unit = SANE_UNIT_MM;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = SANE_FIX(0.);
range->max =
SANE_FIX((s->boundaryy -
1) * s->unit_mm);
range->quant = SANE_FIX(0.);
o.constraint.range = range;
}
break;
case CS3_OPTION_XMIN:
o.name = "tl-x";
o.title = "Left x value of scan area";
o.desc = "Left x value of scan area";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_PIXEL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
if (!range)
alloc_failed = 1;
else {
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
range->min = 0;
range->max = s->boundaryx - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_XMAX:
o.name = "br-x";
o.title = "Right x value of scan area";
o.desc = "Right x value of scan area";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_PIXEL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 0;
range->max = s->boundaryx - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_YMIN:
o.name = "tl-y";
o.title = "Top y value of scan area";
o.desc = "Top y value of scan area";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_PIXEL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 0;
range->max = s->boundaryy - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_YMAX:
o.name = "br-y";
o.title = "Bottom y value of scan area";
o.desc = "Bottom y value of scan area";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_PIXEL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 0;
range->max = s->boundaryy - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_FOCUS_ON_CENTRE:
o.name = "focus-on-centre";
o.title = "Use centre of scan area as AF point";
o.desc = "Use centre of scan area as AF point instead of manual AF point selection";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
break;
case CS3_OPTION_FOCUS:
o.name = "focus";
o.title = "Focus position";
o.desc = "Focus position for manual focus";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_NONE;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = s->focus_min;
range->max = s->focus_max;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_AUTOFOCUS:
o.name = "autofocus";
o.title = "Autofocus";
o.desc = "Perform autofocus before scan";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
break;
case CS3_OPTION_FOCUSX:
o.name = "focusx";
o.title = "X coordinate of AF point";
o.desc = "X coordinate of AF point";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_PIXEL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT |
SANE_CAP_INACTIVE;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 0;
range->max = s->boundaryx - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_FOCUSY:
o.name = "focusy";
o.title = "Y coordinate of AF point";
o.desc = "Y coordinate of AF point";
o.type = SANE_TYPE_INT;
o.unit = SANE_UNIT_PIXEL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT |
SANE_CAP_INACTIVE;
o.constraint_type = SANE_CONSTRAINT_RANGE;
range = (SANE_Range *)
cs3_xmalloc(sizeof(SANE_Range));
if (!range)
alloc_failed = 1;
else {
range->min = 0;
range->max = s->boundaryy - 1;
range->quant = 1;
o.constraint.range = range;
}
break;
case CS3_OPTION_SCAN_AE:
o.name = "ae";
o.title = "Auto-exposure";
o.desc = "Perform auto-exposure before scan";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
break;
case CS3_OPTION_SCAN_AE_WB:
o.name = "ae-wb";
o.title = "Auto-exposure with white balance";
o.desc = "Perform auto-exposure with white balance before scan";
o.type = SANE_TYPE_BOOL;
o.size = WSIZE;
o.cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
break;
default:
DBG(1, "BUG: sane_open(): Unknown option number: %d\n", i_option);
break;
}
s->option_list[i_option] = o;
}
s->scanning = SANE_FALSE;
s->preview = SANE_FALSE;
s->negative = SANE_FALSE;
s->autoload = SANE_FALSE;
s->infrared = SANE_FALSE;
s->ae = SANE_FALSE;
s->aewb = SANE_FALSE;
s->samples_per_scan = 1;
s->depth = 8;
s->i_frame = 1;
s->frame_count = 1;
s->subframe = 0.;
s->res = s->resx = s->resx_max;
s->resy = s->resy_max;
s->res_independent = SANE_FALSE;
s->res_preview = s->resx_max / 10;
if (s->res_preview < s->resx_min)
s->res_preview = s->resx_min;
s->xmin = 0;
s->xmax = s->boundaryx - 1;
s->ymin = 0;
s->ymax = s->boundaryy - 1;
s->focus_on_centre = SANE_TRUE;
s->focus = 0;
s->focusx = 0;
s->focusy = 0;
s->exposure = 1.;
s->exposure_r = 1200.;
s->exposure_g = 1200.;
s->exposure_b = 1000.;
s->line_buf = NULL;
s->n_line_buf = 0;
if (alloc_failed) {
cs3_close(s);
return SANE_STATUS_NO_MEM;
}
return cs3_reserve_unit(s);
}
void
sane_close(SANE_Handle h)
{
cs3_t *s = (cs3_t *) h;
DBG(10, "%s\n", __func__);
cs3_release_unit(s);
cs3_close(s);
}
const SANE_Option_Descriptor *
sane_get_option_descriptor(SANE_Handle h, SANE_Int n)
{
cs3_t *s = (cs3_t *) h;
DBG(24, "%s, option %i\n", __func__, n);
if ((n >= 0) && (n < CS3_N_OPTIONS))
return &s->option_list[n];
else
return NULL;
}
SANE_Status
sane_control_option(SANE_Handle h, SANE_Int n, SANE_Action a, void *v,
SANE_Int * i)
{
cs3_t *s = (cs3_t *) h;
SANE_Int flags = 0;
cs3_pixel_t pixel;
SANE_Option_Descriptor o = s->option_list[n];
DBG(24, "%s, option %i, action %i.\n", __func__, n, a);
switch (a) {
case SANE_ACTION_GET_VALUE:
switch (n) {
case CS3_OPTION_NUM:
*(SANE_Word *) v = CS3_N_OPTIONS;
break;
case CS3_OPTION_NEGATIVE:
*(SANE_Word *) v = s->negative;
break;
case CS3_OPTION_INFRARED:
*(SANE_Word *) v = s->infrared;
break;
case CS3_OPTION_SAMPLES_PER_SCAN:
*(SANE_Word *) v = s->samples_per_scan;
break;
case CS3_OPTION_DEPTH:
*(SANE_Word *) v = s->depth;
break;
case CS3_OPTION_PREVIEW:
*(SANE_Word *) v = s->preview;
break;
case CS3_OPTION_AUTOLOAD:
*(SANE_Word *) v = s->autoload;
break;
case CS3_OPTION_EXPOSURE:
*(SANE_Word *) v = SANE_FIX(s->exposure);
break;
case CS3_OPTION_EXPOSURE_R:
*(SANE_Word *) v = SANE_FIX(s->exposure_r);
break;
case CS3_OPTION_EXPOSURE_G:
*(SANE_Word *) v = SANE_FIX(s->exposure_g);
break;
case CS3_OPTION_EXPOSURE_B:
*(SANE_Word *) v = SANE_FIX(s->exposure_b);
break;
case CS3_OPTION_LUT_R:
if (!(s->lut_r))
return SANE_STATUS_INVAL;
for (pixel = 0; pixel < s->n_lut; pixel++)
((SANE_Word *) v)[pixel] = s->lut_r[pixel];
break;
case CS3_OPTION_LUT_G:
if (!(s->lut_g))
return SANE_STATUS_INVAL;
for (pixel = 0; pixel < s->n_lut; pixel++)
((SANE_Word *) v)[pixel] = s->lut_g[pixel];
break;
case CS3_OPTION_LUT_B:
if (!(s->lut_b))
return SANE_STATUS_INVAL;
for (pixel = 0; pixel < s->n_lut; pixel++)
((SANE_Word *) v)[pixel] = s->lut_b[pixel];
break;
case CS3_OPTION_EJECT:
break;
case CS3_OPTION_LOAD:
break;
case CS3_OPTION_RESET:
break;
case CS3_OPTION_FRAME:
*(SANE_Word *) v = s->i_frame;
break;
case CS3_OPTION_FRAME_COUNT:
*(SANE_Word *) v = s->frame_count;
break;
case CS3_OPTION_SUBFRAME:
*(SANE_Word *) v = SANE_FIX(s->subframe);
break;
case CS3_OPTION_RES:
*(SANE_Word *) v = s->res;
break;
case CS3_OPTION_RESX:
*(SANE_Word *) v = s->resx;
break;
case CS3_OPTION_RESY:
*(SANE_Word *) v = s->resy;
break;
case CS3_OPTION_RES_INDEPENDENT:
*(SANE_Word *) v = s->res_independent;
break;
case CS3_OPTION_PREVIEW_RESOLUTION:
*(SANE_Word *) v = s->res_preview;
break;
case CS3_OPTION_XMIN:
*(SANE_Word *) v = s->xmin;
break;
case CS3_OPTION_XMAX:
*(SANE_Word *) v = s->xmax;
break;
case CS3_OPTION_YMIN:
*(SANE_Word *) v = s->ymin;
break;
case CS3_OPTION_YMAX:
*(SANE_Word *) v = s->ymax;
break;
case CS3_OPTION_FOCUS_ON_CENTRE:
*(SANE_Word *) v = s->focus_on_centre;
break;
case CS3_OPTION_FOCUS:
*(SANE_Word *) v = s->focus;
break;
case CS3_OPTION_AUTOFOCUS:
*(SANE_Word *) v = s->autofocus;
break;
case CS3_OPTION_FOCUSX:
*(SANE_Word *) v = s->focusx;
break;
case CS3_OPTION_FOCUSY:
*(SANE_Word *) v = s->focusy;
break;
case CS3_OPTION_SCAN_AE:
*(SANE_Word *) v = s->ae;
break;
case CS3_OPTION_SCAN_AE_WB:
*(SANE_Word *) v = s->aewb;
break;
default:
DBG(4, "%s: Unknown option (bug?).\n", __func__);
return SANE_STATUS_INVAL;
}
break;
case SANE_ACTION_SET_VALUE:
if (s->scanning)
return SANE_STATUS_INVAL;
/* XXX do this for all elements of arrays */
switch (o.type) {
case SANE_TYPE_BOOL:
if ((*(SANE_Word *) v != SANE_TRUE)
&& (*(SANE_Word *) v != SANE_FALSE))
return SANE_STATUS_INVAL;
break;
case SANE_TYPE_INT:
case SANE_TYPE_FIXED:
switch (o.constraint_type) {
case SANE_CONSTRAINT_RANGE:
if (*(SANE_Word *) v <
o.constraint.range->min) {
*(SANE_Word *) v =
o.constraint.range->min;
flags |= SANE_INFO_INEXACT;
} else if (*(SANE_Word *) v >
o.constraint.range->max) {
*(SANE_Word *) v =
o.constraint.range->max;
flags |= SANE_INFO_INEXACT;
}
break;
case SANE_CONSTRAINT_WORD_LIST:
break;
default:
break;
}
break;
case SANE_TYPE_STRING:
break;
case SANE_TYPE_BUTTON:
break;
case SANE_TYPE_GROUP:
break;
}
switch (n) {
case CS3_OPTION_NUM:
return SANE_STATUS_INVAL;
break;
case CS3_OPTION_NEGATIVE:
s->negative = *(SANE_Word *) v;
break;
case CS3_OPTION_INFRARED:
s->infrared = *(SANE_Word *) v;
/* flags |= SANE_INFO_RELOAD_PARAMS; XXX */
break;
case CS3_OPTION_SAMPLES_PER_SCAN:
s->samples_per_scan = *(SANE_Word *) v;
break;
case CS3_OPTION_DEPTH:
if (*(SANE_Word *) v > s->maxbits)
return SANE_STATUS_INVAL;
s->depth = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_PREVIEW:
s->preview = *(SANE_Word *) v;
break;
case CS3_OPTION_AUTOLOAD:
s->autoload = *(SANE_Word *) v;
break;
case CS3_OPTION_EXPOSURE:
s->exposure = SANE_UNFIX(*(SANE_Word *) v);
break;
case CS3_OPTION_EXPOSURE_R:
s->exposure_r = SANE_UNFIX(*(SANE_Word *) v);
break;
case CS3_OPTION_EXPOSURE_G:
s->exposure_g = SANE_UNFIX(*(SANE_Word *) v);
break;
case CS3_OPTION_EXPOSURE_B:
s->exposure_b = SANE_UNFIX(*(SANE_Word *) v);
break;
case CS3_OPTION_LUT_R:
if (!(s->lut_r))
return SANE_STATUS_INVAL;
for (pixel = 0; pixel < s->n_lut; pixel++)
s->lut_r[pixel] = ((SANE_Word *) v)[pixel];
break;
case CS3_OPTION_LUT_G:
if (!(s->lut_g))
return SANE_STATUS_INVAL;
for (pixel = 0; pixel < s->n_lut; pixel++)
s->lut_g[pixel] = ((SANE_Word *) v)[pixel];
break;
case CS3_OPTION_LUT_B:
if (!(s->lut_b))
return SANE_STATUS_INVAL;
for (pixel = 0; pixel < s->n_lut; pixel++)
s->lut_b[pixel] = ((SANE_Word *) v)[pixel];
break;
case CS3_OPTION_LOAD:
cs3_load(s);
break;
case CS3_OPTION_EJECT:
cs3_eject(s);
break;
case CS3_OPTION_RESET:
cs3_reset(s);
break;
case CS3_OPTION_FRAME:
s->i_frame = *(SANE_Word *) v;
break;
case CS3_OPTION_FRAME_COUNT:
if (*(SANE_Word *) v > (s->n_frames - s->i_frame + 1))
return SANE_STATUS_INVAL;
s->frame_count = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_SUBFRAME:
s->subframe = SANE_UNFIX(*(SANE_Word *) v);
break;
case CS3_OPTION_RES:
s->res = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_RESX:
s->resx = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_RESY:
s->resy = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_RES_INDEPENDENT:
s->res_independent = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_PREVIEW_RESOLUTION:
s->res_preview = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_XMIN:
s->xmin = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_XMAX:
s->xmax = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_YMIN:
s->ymin = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_YMAX:
s->ymax = *(SANE_Word *) v;
flags |= SANE_INFO_RELOAD_PARAMS;
break;
case CS3_OPTION_FOCUS_ON_CENTRE:
s->focus_on_centre = *(SANE_Word *) v;
if (s->focus_on_centre) {
s->option_list[CS3_OPTION_FOCUSX].cap |=
SANE_CAP_INACTIVE;
s->option_list[CS3_OPTION_FOCUSY].cap |=
SANE_CAP_INACTIVE;
} else {
s->option_list[CS3_OPTION_FOCUSX].cap &=
~SANE_CAP_INACTIVE;
s->option_list[CS3_OPTION_FOCUSY].cap &=
~SANE_CAP_INACTIVE;
}
flags |= SANE_INFO_RELOAD_OPTIONS;
break;
case CS3_OPTION_FOCUS:
s->focus = *(SANE_Word *) v;
break;
case CS3_OPTION_AUTOFOCUS:
s->autofocus = *(SANE_Word *) v;
break;
case CS3_OPTION_FOCUSX:
s->focusx = *(SANE_Word *) v;
break;
case CS3_OPTION_FOCUSY:
s->focusy = *(SANE_Word *) v;
break;
case CS3_OPTION_SCAN_AE:
s->ae = *(SANE_Word *) v;
break;
case CS3_OPTION_SCAN_AE_WB:
s->aewb = *(SANE_Word *) v;
break;
default:
DBG(4,
"Error: sane_control_option(): Unknown option number (bug?).\n");
return SANE_STATUS_INVAL;
break;
}
break;
default:
DBG(1,
"BUG: sane_control_option(): Unknown action number.\n");
return SANE_STATUS_INVAL;
break;
}
if (i)
*i = flags;
return SANE_STATUS_GOOD;
}
SANE_Status
sane_get_parameters(SANE_Handle h, SANE_Parameters * p)
{
cs3_t *s = (cs3_t *) h;
SANE_Status status;
DBG(10, "%s\n", __func__);
if (!s->scanning) { /* only recalculate when not scanning */
status = cs3_convert_options(s);
if (status != SANE_STATUS_GOOD)
return status;
}
p->bytes_per_line =
s->n_colors * s->logical_width * s->bytes_per_pixel;
#ifdef SANE_FRAME_RGBI
if (s->infrared) {
p->format = SANE_FRAME_RGBI;
} else {
#endif
p->format = SANE_FRAME_RGB; /* XXXXXXXX CCCCCCCCCC */
#ifdef SANE_FRAME_RGBI
}
#endif
p->last_frame = SANE_TRUE;
p->lines = s->logical_height;
p->depth = 8 * s->bytes_per_pixel;
p->pixels_per_line = s->logical_width;
return SANE_STATUS_GOOD;
}
SANE_Status
sane_start(SANE_Handle h)
{
cs3_t *s = (cs3_t *) h;
SANE_Status status;
DBG(10, "%s\n", __func__);
if (s->scanning)
return SANE_STATUS_INVAL;
if (s->n_frames > 1 && s->frame_count == 0) {
DBG(4, "%s: no more frames\n", __func__);
return SANE_STATUS_NO_DOCS;
}
if (s->n_frames > 1) {
DBG(4, "%s: scanning frame at position %d, %d to go\n",
__func__, s->i_frame, s->frame_count);
}
status = cs3_convert_options(s);
if (status != SANE_STATUS_GOOD)
return status;
s->i_line_buf = 0;
s->xfer_position = 0;
s->scanning = SANE_TRUE;
/* load if appropriate */
if (s->autoload) {
status = cs3_load(s);
if (status != SANE_STATUS_GOOD)
return status;
}
/* check for documents */
status = cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
if (status != SANE_STATUS_GOOD)
return status;
if (s->status & CS3_STATUS_NO_DOCS)
return SANE_STATUS_NO_DOCS;
if (s->autofocus) {
status = cs3_autofocus(s);
if (status != SANE_STATUS_GOOD)
return status;
}
if (s->aewb) {
status = cs3_autoexposure(s, 1);
if (status != SANE_STATUS_GOOD)
return status;
} else if (s->ae) {
status = cs3_autoexposure(s, 0);
if (status != SANE_STATUS_GOOD)
return status;
}
return cs3_scan(s, CS3_SCAN_NORMAL);
}
SANE_Status
sane_read(SANE_Handle h, SANE_Byte * buf, SANE_Int maxlen, SANE_Int * len)
{
cs3_t *s = (cs3_t *) h;
SANE_Status status;
ssize_t xfer_len_in, xfer_len_line, xfer_len_out;
unsigned long index;
int color, sample_pass;
uint8_t *s8 = NULL;
uint16_t *s16 = NULL;
double m_avg_sum;
SANE_Byte *line_buf_new;
DBG(32, "%s, maxlen = %i.\n", __func__, maxlen);
if (!s->scanning) {
*len = 0;
return SANE_STATUS_CANCELLED;
}
/* transfer from buffer */
if (s->i_line_buf > 0) {
xfer_len_out = s->n_line_buf - s->i_line_buf;
if (xfer_len_out > maxlen)
xfer_len_out = maxlen;
memcpy(buf, &(s->line_buf[s->i_line_buf]), xfer_len_out);
s->i_line_buf += xfer_len_out;
if (s->i_line_buf >= s->n_line_buf)
s->i_line_buf = 0;
*len = xfer_len_out;
return SANE_STATUS_GOOD;
}
xfer_len_line = s->n_colors * s->logical_width * s->bytes_per_pixel;
xfer_len_in = xfer_len_line + (s->n_colors * s->odd_padding);
if ((xfer_len_in & 0x3f)) {
int d = ((xfer_len_in / 512) * 512) + 512;
s->block_padding = d - xfer_len_in;
}
DBG(22, "%s: block_padding = %d, odd_padding = %d\n",
__func__, s->block_padding, s->odd_padding);
DBG(22,
"%s: colors = %d, logical_width = %ld, bytes_per_pixel = %d\n",
__func__, s->n_colors, s->logical_width, s->bytes_per_pixel);
/* Do not change the behaviour of older models, pad to 512 */
if ((s->type == CS3_TYPE_LS50) || (s->type == CS3_TYPE_LS5000)) {
xfer_len_in += s->block_padding;
if (xfer_len_in & 0x3f)
DBG(1, "BUG: %s, not a multiple of 64. (0x%06lx)\n",
__func__, (long) xfer_len_in);
}
if (s->xfer_position + xfer_len_line > s->xfer_bytes_total)
xfer_len_line = s->xfer_bytes_total - s->xfer_position; /* just in case */
if (xfer_len_line == 0) { /* no more data */
*len = 0;
/* increment frame number if appropriate */
if (s->n_frames > 1 && --s->frame_count) {
s->i_frame++;
}
s->scanning = SANE_FALSE;
return SANE_STATUS_EOF;
}
if (xfer_len_line != s->n_line_buf) {
line_buf_new =
(SANE_Byte *) cs3_xrealloc(s->line_buf,
xfer_len_line *
sizeof(SANE_Byte));
if (!line_buf_new) {
*len = 0;
return SANE_STATUS_NO_MEM;
}
s->line_buf = line_buf_new;
s->n_line_buf = xfer_len_line;
}
/* adapt for multi-sampling */
xfer_len_in *= s->samples_per_scan;
cs3_scanner_ready(s, CS3_STATUS_READY);
cs3_init_buffer(s);
cs3_parse_cmd(s, "28 00 00 00 00 00");
cs3_pack_byte(s, (xfer_len_in >> 16) & 0xff);
cs3_pack_byte(s, (xfer_len_in >> 8) & 0xff);
cs3_pack_byte(s, xfer_len_in & 0xff);
cs3_parse_cmd(s, "00");
s->n_recv = xfer_len_in;
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD) {
*len = 0;
return status;
}
for (index = 0; index < s->logical_width; index++) {
for (color = 0; color < s->n_colors; color++) {
int where = s->bytes_per_pixel
* (s->n_colors * index + color);
m_avg_sum = 0.0;
switch (s->bytes_per_pixel) {
case 1:
{
/* target address */
s8 = (uint8_t *) & (s->line_buf[where]);
if (s->samples_per_scan > 1) {
/* calculate average of multi samples */
for (sample_pass = 0;
sample_pass < s->samples_per_scan;
sample_pass++) {
/* source index */
int p8 = (sample_pass * s->n_colors + color)
* s->logical_width
+ (color + 1) * s->odd_padding
+ index;
m_avg_sum += (double) s->recv_buf[p8];
}
*s8 = (uint8_t) (m_avg_sum / s->samples_per_scan + 0.5);
} else {
/* shortcut for single sample */
int p8 = s->logical_width * color
+ (color + 1) * s->odd_padding
+ index;
*s8 = s->recv_buf[p8];
}
}
break;
case 2:
{
/* target address */
s16 = (uint16_t *) & (s->line_buf[where]);
if (s->samples_per_scan > 1) {
/* calculate average of multi samples */
for (sample_pass = 0;
sample_pass < s->samples_per_scan;
sample_pass++) {
/* source index */
int p16 = 2 * ((sample_pass * s->n_colors + color)
* s->logical_width + index);
m_avg_sum += (double) ((s->recv_buf[p16] << 8)
+ s->recv_buf[p16 + 1]);
}
*s16 = (uint16_t) (m_avg_sum / s->samples_per_scan + 0.5);
} else {
/* shortcut for single sample */
int p16 = 2 * (color * s->logical_width + index);
*s16 = (s->recv_buf[p16] << 8)
+ s->recv_buf[p16 + 1];
}
*s16 <<= s->shift_bits;
}
break;
default:
DBG(1,
"BUG: sane_read(): Unknown number of bytes per pixel.\n");
*len = 0;
return SANE_STATUS_INVAL;
break;
}
}
}
s->xfer_position += xfer_len_line;
xfer_len_out = xfer_len_line;
if (xfer_len_out > maxlen)
xfer_len_out = maxlen;
memcpy(buf, s->line_buf, xfer_len_out);
if (xfer_len_out < xfer_len_line)
s->i_line_buf = xfer_len_out; /* data left in the line buffer, read out next time */
*len = xfer_len_out;
return SANE_STATUS_GOOD;
}
void
sane_cancel(SANE_Handle h)
{
cs3_t *s = (cs3_t *) h;
DBG(10, "%s, scanning = %d.\n", __func__, s->scanning);
if (s->scanning) {
cs3_init_buffer(s);
cs3_parse_cmd(s, "c0 00 00 00 00 00");
cs3_issue_cmd(s);
}
s->scanning = SANE_FALSE;
}
SANE_Status
sane_set_io_mode(SANE_Handle h, SANE_Bool m)
{
cs3_t *s = (cs3_t *) h;
DBG(10, "%s\n", __func__);
if (!s->scanning)
return SANE_STATUS_INVAL;
if (m == SANE_FALSE)
return SANE_STATUS_GOOD;
else
return SANE_STATUS_UNSUPPORTED;
}
SANE_Status
sane_get_select_fd(SANE_Handle h, SANE_Int * fd)
{
cs3_t *s = (cs3_t *) h;
DBG(10, "%s\n", __func__);
fd = fd; /* to shut up compiler */
s = s; /* to shut up compiler */
return SANE_STATUS_UNSUPPORTED;
}
/* ========================================================================= */
/* private functions */
static void
cs3_trim(char *s)
{
int i, l = strlen(s);
for (i = l - 1; i > 0; i--) {
if (s[i] == ' ')
s[i] = '\0';
else
break;
}
}
static SANE_Status
cs3_open(const char *device, cs3_interface_t interface, cs3_t ** sp)
{
SANE_Status status;
cs3_t *s;
char *prefix = NULL, *line;
int i;
int alloc_failed = 0;
SANE_Device **device_list_new;
DBG(6, "%s, device = %s, interface = %i\n",
__func__, device, interface);
if (!strncmp(device, "auto", 5)) {
try_interface = CS3_INTERFACE_SCSI;
sanei_config_attach_matching_devices("scsi Nikon *",
cs3_attach);
try_interface = CS3_INTERFACE_USB;
sanei_usb_attach_matching_devices("usb 0x04b0 0x4000",
cs3_attach);
sanei_usb_attach_matching_devices("usb 0x04b0 0x4001",
cs3_attach);
sanei_usb_attach_matching_devices("usb 0x04b0 0x4002",
cs3_attach);
return SANE_STATUS_GOOD;
}
if ((s = (cs3_t *) cs3_xmalloc(sizeof(cs3_t))) == NULL)
return SANE_STATUS_NO_MEM;
memset(s, 0, sizeof(cs3_t));
/* fill magic bits */
s->magic = SANE_COOKIE;
s->cookie_ptr = &s->cookie;
s->cookie.version = 0x01;
s->cookie.vendor = s->vendor_string;
s->cookie.model = s->product_string;
s->cookie.revision = s->revision_string;
s->send_buf = s->recv_buf = NULL;
s->send_buf_size = s->recv_buf_size = 0;
switch (interface) {
case CS3_INTERFACE_UNKNOWN:
for (i = 0; i < 2; i++) {
switch (i) {
case 1:
prefix = "usb:";
try_interface = CS3_INTERFACE_USB;
break;
default:
prefix = "scsi:";
try_interface = CS3_INTERFACE_SCSI;
break;
}
if (!strncmp(device, prefix, strlen(prefix))) {
const void *p = device + strlen(prefix);
cs3_xfree(s);
return cs3_open(p, try_interface, sp);
}
}
cs3_xfree(s);
return SANE_STATUS_INVAL;
break;
case CS3_INTERFACE_SCSI:
s->interface = CS3_INTERFACE_SCSI;
DBG(6,
"%s, trying to open %s, assuming SCSI or SBP2 interface\n",
__func__, device);
status = sanei_scsi_open(device, &s->fd,
cs3_scsi_sense_handler, s);
if (status != SANE_STATUS_GOOD) {
DBG(6, " ...failed: %s.\n", sane_strstatus(status));
cs3_xfree(s);
return status;
}
break;
case CS3_INTERFACE_USB:
s->interface = CS3_INTERFACE_USB;
DBG(6, "%s, trying to open %s, assuming USB interface\n",
__func__, device);
status = sanei_usb_open(device, &s->fd);
if (status != SANE_STATUS_GOOD) {
DBG(6, " ...failed: %s.\n", sane_strstatus(status));
cs3_xfree(s);
return status;
}
break;
}
open_devices++;
DBG(6, "%s, trying to identify device.\n", __func__);
/* identify scanner */
status = cs3_page_inquiry(s, -1);
if (status != SANE_STATUS_GOOD) {
cs3_close(s);
return status;
}
strncpy(s->vendor_string, (char *) s->recv_buf + 8, 8);
s->vendor_string[8] = '\0';
strncpy(s->product_string, (char *) s->recv_buf + 16, 16);
s->product_string[16] = '\0';
strncpy(s->revision_string, (char *) s->recv_buf + 32, 4);
s->revision_string[4] = '\0';
DBG(10,
"%s, vendor = '%s', product = '%s', revision = '%s'.\n",
__func__, s->vendor_string, s->product_string,
s->revision_string);
if (!strncmp(s->product_string, "COOLSCANIII ", 16))
s->type = CS3_TYPE_LS30;
else if (!strncmp(s->product_string, "LS-40 ED ", 16))
s->type = CS3_TYPE_LS40;
else if (!strncmp(s->product_string, "LS-50 ED ", 16))
s->type = CS3_TYPE_LS50;
else if (!strncmp(s->product_string, "LS-2000 ", 16))
s->type = CS3_TYPE_LS2000;
else if (!strncmp(s->product_string, "LS-4000 ED ", 16))
s->type = CS3_TYPE_LS4000;
else if (!strncmp(s->product_string, "LS-5000 ED ", 16))
s->type = CS3_TYPE_LS5000;
else if (!strncmp(s->product_string, "LS-8000 ED ", 16))
s->type = CS3_TYPE_LS8000;
if (s->type != CS3_TYPE_UNKOWN)
DBG(10,
"%s, device identified as coolscan3 type #%i.\n",
__func__, s->type);
else {
DBG(10, "%s, device not identified.\n", __func__);
cs3_close(s);
return SANE_STATUS_UNSUPPORTED;
}
cs3_trim(s->vendor_string);
cs3_trim(s->product_string);
cs3_trim(s->revision_string);
if (sp)
*sp = s;
else {
device_list_new =
(SANE_Device **) cs3_xrealloc(device_list,
(n_device_list +
2) *
sizeof(SANE_Device *));
if (!device_list_new)
return SANE_STATUS_NO_MEM;
device_list = device_list_new;
device_list[n_device_list] =
(SANE_Device *) cs3_xmalloc(sizeof(SANE_Device));
if (!device_list[n_device_list])
return SANE_STATUS_NO_MEM;
switch (interface) {
case CS3_INTERFACE_UNKNOWN:
DBG(1, "BUG: cs3_open(): unknown interface.\n");
cs3_close(s);
return SANE_STATUS_UNSUPPORTED;
break;
case CS3_INTERFACE_SCSI:
prefix = "scsi:";
break;
case CS3_INTERFACE_USB:
prefix = "usb:";
break;
}
line = (char *) cs3_xmalloc(strlen(device) + strlen(prefix) +
1);
if (!line)
alloc_failed = 1;
else {
strcpy(line, prefix);
strcat(line, device);
device_list[n_device_list]->name = line;
}
line = (char *) cs3_xmalloc(strlen(s->vendor_string) + 1);
if (!line)
alloc_failed = 1;
else {
strcpy(line, s->vendor_string);
device_list[n_device_list]->vendor = line;
}
line = (char *) cs3_xmalloc(strlen(s->product_string) + 1);
if (!line)
alloc_failed = 1;
else {
strcpy(line, s->product_string);
device_list[n_device_list]->model = line;
}
device_list[n_device_list]->type = "film scanner";
if (alloc_failed) {
cs3_xfree(device_list[n_device_list]->name);
cs3_xfree(device_list[n_device_list]->vendor);
cs3_xfree(device_list[n_device_list]->model);
cs3_xfree(device_list[n_device_list]);
} else
n_device_list++;
device_list[n_device_list] = NULL;
cs3_close(s);
}
return SANE_STATUS_GOOD;
}
void
cs3_close(cs3_t * s)
{
cs3_xfree(s->lut_r);
cs3_xfree(s->lut_g);
cs3_xfree(s->lut_b);
cs3_xfree(s->lut_neutral);
cs3_xfree(s->line_buf);
switch (s->interface) {
case CS3_INTERFACE_UNKNOWN:
DBG(0, "BUG: %s: Unknown interface number.\n", __func__);
break;
case CS3_INTERFACE_SCSI:
sanei_scsi_close(s->fd);
open_devices--;
break;
case CS3_INTERFACE_USB:
sanei_usb_close(s->fd);
open_devices--;
break;
}
cs3_xfree(s);
}
static SANE_Status
cs3_attach(const char *dev)
{
SANE_Status status;
if (try_interface == CS3_INTERFACE_UNKNOWN)
return SANE_STATUS_UNSUPPORTED;
status = cs3_open(dev, try_interface, NULL);
return status;
}
static SANE_Status
cs3_scsi_sense_handler(int fd, u_char * sense_buffer, void *arg)
{
cs3_t *s = (cs3_t *) arg;
fd = fd; /* to shut up compiler */
/* sort this out ! XXX */
s->sense_key = sense_buffer[2] & 0x0f;
s->sense_asc = sense_buffer[12];
s->sense_ascq = sense_buffer[13];
s->sense_info = sense_buffer[3];
return cs3_parse_sense_data(s);
}
static SANE_Status
cs3_parse_sense_data(cs3_t * s)
{
SANE_Status status = SANE_STATUS_GOOD;
s->sense_code =
(s->sense_key << 24) + (s->sense_asc << 16) +
(s->sense_ascq << 8) + s->sense_info;
if (s->sense_key)
DBG(14, "sense code: %02lx-%02lx-%02lx-%02lx\n", s->sense_key,
s->sense_asc, s->sense_ascq, s->sense_info);
switch (s->sense_key) {
case 0x00:
s->status = CS3_STATUS_READY;
break;
case 0x02:
switch (s->sense_asc) {
case 0x04:
DBG(15, " processing\n");
s->status = CS3_STATUS_PROCESSING;
break;
case 0x3a:
DBG(15, " no docs\n");
s->status = CS3_STATUS_NO_DOCS;
break;
default:
DBG(15, " default\n");
s->status = CS3_STATUS_ERROR;
status = SANE_STATUS_IO_ERROR;
break;
}
break;
case 0x09:
if ((s->sense_code == 0x09800600)
|| (s->sense_code == 0x09800601))
s->status = CS3_STATUS_REISSUE;
break;
default:
s->status = CS3_STATUS_ERROR;
status = SANE_STATUS_IO_ERROR;
break;
}
return status;
}
static void
cs3_init_buffer(cs3_t * s)
{
s->n_cmd = 0;
s->n_send = 0;
s->n_recv = 0;
}
static SANE_Status
cs3_pack_byte(cs3_t * s, SANE_Byte byte)
{
while (s->send_buf_size <= s->n_send) {
s->send_buf_size += 16;
s->send_buf =
(SANE_Byte *) cs3_xrealloc(s->send_buf,
s->send_buf_size);
if (!s->send_buf)
return SANE_STATUS_NO_MEM;
}
s->send_buf[s->n_send++] = byte;
return SANE_STATUS_GOOD;
}
static void
cs3_pack_long(cs3_t * s, unsigned long val)
{
cs3_pack_byte(s, (val >> 24) & 0xff);
cs3_pack_byte(s, (val >> 16) & 0xff);
cs3_pack_byte(s, (val >> 8) & 0xff);
cs3_pack_byte(s, val & 0xff);
}
static void
cs3_pack_word(cs3_t * s, unsigned long val)
{
cs3_pack_byte(s, (val >> 8) & 0xff);
cs3_pack_byte(s, val & 0xff);
}
static SANE_Status
cs3_parse_cmd(cs3_t * s, char *text)
{
size_t i, j;
char c, h;
SANE_Status status;
for (i = 0; i < strlen(text); i += 2)
if (text[i] == ' ')
i--; /* a bit dirty... advance by -1+2=1 */
else {
if ((!isxdigit(text[i])) || (!isxdigit(text[i + 1])))
DBG(1,
"BUG: cs3_parse_cmd(): Parser got invalid character.\n");
c = 0;
for (j = 0; j < 2; j++) {
h = tolower(text[i + j]);
if ((h >= 'a') && (h <= 'f'))
c += 10 + h - 'a';
else
c += h - '0';
if (j == 0)
c <<= 4;
}
status = cs3_pack_byte(s, c);
if (status != SANE_STATUS_GOOD)
return status;
}
return SANE_STATUS_GOOD;
}
static SANE_Status
cs3_grow_send_buffer(cs3_t * s)
{
if (s->n_send > s->send_buf_size) {
s->send_buf_size = s->n_send;
s->send_buf =
(SANE_Byte *) cs3_xrealloc(s->send_buf,
s->send_buf_size);
if (!s->send_buf)
return SANE_STATUS_NO_MEM;
}
return SANE_STATUS_GOOD;
}
static SANE_Status
cs3_issue_cmd(cs3_t * s)
{
SANE_Status status = SANE_STATUS_INVAL;
size_t n_data, n_status;
static SANE_Byte status_buf[8];
int status_only = 0;
DBG(20,
"cs3_issue_cmd(): opcode = 0x%02x, n_send = %lu, n_recv = %lu.\n",
s->send_buf[0], (unsigned long) s->n_send,
(unsigned long) s->n_recv);
s->status = CS3_STATUS_READY;
if (!s->n_cmd)
switch (s->send_buf[0]) {
case 0x00:
case 0x12:
case 0x15:
case 0x16:
case 0x17:
case 0x1a:
case 0x1b:
case 0x1c:
case 0x1d:
case 0xc0:
case 0xc1:
s->n_cmd = 6;
break;
case 0x24:
case 0x25:
case 0x28:
case 0x2a:
case 0xe0:
case 0xe1:
s->n_cmd = 10;
break;
default:
DBG(1,
"BUG: cs3_issue_cmd(): Unknown command opcode 0x%02x.\n",
s->send_buf[0]);
break;
}
if (s->n_send < s->n_cmd) {
DBG(1,
"BUG: cs3_issue_cmd(): Negative number of data out bytes requested.\n");
return SANE_STATUS_INVAL;
}
n_data = s->n_send - s->n_cmd;
if (s->n_recv > 0) {
if (n_data > 0) {
DBG(1,
"BUG: cs3_issue_cmd(): Both data in and data out requested.\n");
return SANE_STATUS_INVAL;
} else {
n_data = s->n_recv;
}
}
s->recv_buf = (SANE_Byte *) cs3_xrealloc(s->recv_buf, s->n_recv);
if (!s->recv_buf)
return SANE_STATUS_NO_MEM;
switch (s->interface) {
case CS3_INTERFACE_UNKNOWN:
DBG(1,
"BUG: cs3_issue_cmd(): Unknown or uninitialized interface number.\n");
break;
case CS3_INTERFACE_SCSI:
sanei_scsi_cmd2(s->fd, s->send_buf, s->n_cmd,
s->send_buf + s->n_cmd, s->n_send - s->n_cmd,
s->recv_buf, &s->n_recv);
status = SANE_STATUS_GOOD;
break;
case CS3_INTERFACE_USB:
status = sanei_usb_write_bulk(s->fd, s->send_buf, &s->n_cmd);
if (status != SANE_STATUS_GOOD) {
DBG(1,
"Error: cs3_issue_cmd(): Could not write command.\n");
return SANE_STATUS_IO_ERROR;
}
switch (cs3_phase_check(s)) {
case CS3_PHASE_OUT:
if (s->n_send - s->n_cmd < n_data || !n_data) {
DBG(4,
"Error: cs3_issue_cmd(): Unexpected data out phase.\n");
return SANE_STATUS_IO_ERROR;
}
status = sanei_usb_write_bulk(s->fd,
s->send_buf + s->n_cmd,
&n_data);
break;
case CS3_PHASE_IN:
if (s->n_recv < n_data || !n_data) {
DBG(4,
"Error: cs3_issue_cmd(): Unexpected data in phase.\n");
return SANE_STATUS_IO_ERROR;
}
status = sanei_usb_read_bulk(s->fd, s->recv_buf,
&n_data);
s->n_recv = n_data;
break;
case CS3_PHASE_NONE:
DBG(4, "%s: No command received!\n", __func__);
return SANE_STATUS_IO_ERROR;
default:
if (n_data) {
DBG(4,
"%s: Unexpected non-data phase, but n_data != 0 (%lu).\n",
__func__, (u_long) n_data);
status_only = 1;
}
break;
}
n_status = 8;
status = sanei_usb_read_bulk(s->fd, status_buf, &n_status);
if (n_status != 8) {
DBG(4,
"Error: cs3_issue_cmd(): Failed to read 8 status bytes from USB.\n");
return SANE_STATUS_IO_ERROR;
}
s->sense_key = status_buf[1] & 0x0f;
s->sense_asc = status_buf[2] & 0xff;
s->sense_ascq = status_buf[3] & 0xff;
s->sense_info = status_buf[4] & 0xff;
status = cs3_parse_sense_data(s);
break;
}
if (status_only)
return SANE_STATUS_IO_ERROR;
else
return status;
}
static cs3_phase_t
cs3_phase_check(cs3_t * s)
{
static SANE_Byte phase_send_buf[1] = { 0xd0 }, phase_recv_buf[1];
SANE_Status status = 0;
size_t n = 1;
status = sanei_usb_write_bulk(s->fd, phase_send_buf, &n);
status |= sanei_usb_read_bulk(s->fd, phase_recv_buf, &n);
DBG(40, "%s: returned phase = 0x%02x.\n", __func__,
phase_recv_buf[0]);
if (status != SANE_STATUS_GOOD)
return -1;
else
return phase_recv_buf[0];
}
static SANE_Status
cs3_scanner_ready(cs3_t * s, int flags)
{
SANE_Status status = SANE_STATUS_GOOD;
int i = -1;
unsigned long count = 0;
int retry = 3;
do {
if (i >= 0) /* dirty !!! */
usleep(1000000);
/* test unit ready */
cs3_init_buffer(s);
for (i = 0; i < 6; i++)
cs3_pack_byte(s, 0x00);
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD)
if (--retry < 0)
return status;
if (++count > 120) { /* 120s timeout */
DBG(4, "Error: %s: Timeout expired.\n", __func__);
status = SANE_STATUS_IO_ERROR;
break;
}
}
while (s->status & ~flags); /* until all relevant bits are 0 */
return status;
}
static SANE_Status
cs3_page_inquiry(cs3_t * s, int page)
{
SANE_Status status;
size_t n;
if (page >= 0) {
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
cs3_init_buffer(s);
cs3_parse_cmd(s, "12 01");
cs3_pack_byte(s, page);
cs3_parse_cmd(s, "00 04 00");
s->n_recv = 4;
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD) {
DBG(4,
"Error: cs3_page_inquiry(): Inquiry of page size failed: %s.\n",
sane_strstatus(status));
return status;
}
n = s->recv_buf[3] + 4;
} else
n = 36;
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
cs3_init_buffer(s);
if (page >= 0) {
cs3_parse_cmd(s, "12 01");
cs3_pack_byte(s, page);
cs3_parse_cmd(s, "00");
} else
cs3_parse_cmd(s, "12 00 00 00");
cs3_pack_byte(s, n);
cs3_parse_cmd(s, "00");
s->n_recv = n;
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD) {
DBG(4, "Error: %s: inquiry of page failed: %s.\n",
__func__, sane_strstatus(status));
return status;
}
return SANE_STATUS_GOOD;
}
static SANE_Status
cs3_full_inquiry(cs3_t * s)
{
SANE_Status status;
int pitch, pitch_max;
cs3_pixel_t pixel;
DBG(4, "%s\n", __func__);
status = cs3_page_inquiry(s, 0xc1);
if (status != SANE_STATUS_GOOD)
return status;
s->maxbits = s->recv_buf[82];
if (s->type == CS3_TYPE_LS30) /* must be overridden, LS-30 claims to have 12 bits */
s->maxbits = 10;
s->n_lut = 1;
s->n_lut <<= s->maxbits;
s->lut_r =
(cs3_pixel_t *) cs3_xrealloc(s->lut_r,
s->n_lut * sizeof(cs3_pixel_t));
s->lut_g =
(cs3_pixel_t *) cs3_xrealloc(s->lut_g,
s->n_lut * sizeof(cs3_pixel_t));
s->lut_b =
(cs3_pixel_t *) cs3_xrealloc(s->lut_b,
s->n_lut * sizeof(cs3_pixel_t));
s->lut_neutral =
(cs3_pixel_t *) cs3_xrealloc(s->lut_neutral,
s->n_lut * sizeof(cs3_pixel_t));
if (!s->lut_r || !s->lut_g || !s->lut_b || !s->lut_neutral) {
cs3_xfree(s->lut_r);
cs3_xfree(s->lut_g);
cs3_xfree(s->lut_b);
cs3_xfree(s->lut_neutral);
return SANE_STATUS_NO_MEM;
}
for (pixel = 0; pixel < s->n_lut; pixel++) {
s->lut_r[pixel] = s->lut_g[pixel] = s->lut_b[pixel] =
s->lut_neutral[pixel] = pixel;
}
s->resx_optical = 256 * s->recv_buf[18] + s->recv_buf[19];
s->resx_max = 256 * s->recv_buf[20] + s->recv_buf[21];
s->resx_min = 256 * s->recv_buf[22] + s->recv_buf[23];
s->boundaryx =
65536 * (256 * s->recv_buf[36] + s->recv_buf[37]) +
256 * s->recv_buf[38] + s->recv_buf[39];
s->resy_optical = 256 * s->recv_buf[40] + s->recv_buf[41];
s->resy_max = 256 * s->recv_buf[42] + s->recv_buf[43];
s->resy_min = 256 * s->recv_buf[44] + s->recv_buf[45];
s->boundaryy =
65536 * (256 * s->recv_buf[58] + s->recv_buf[59]) +
256 * s->recv_buf[60] + s->recv_buf[61];
s->focus_min = 256 * s->recv_buf[76] + s->recv_buf[77];
s->focus_max = 256 * s->recv_buf[78] + s->recv_buf[79];
s->n_frames = s->recv_buf[75];
s->frame_offset = s->resy_max * 1.5 + 1; /* works for LS-30, maybe not for others */
/* generate resolution list for x */
s->resx_n_list = pitch_max =
floor(s->resx_max / (double) s->resx_min);
s->resx_list =
(unsigned int *) cs3_xrealloc(s->resx_list,
pitch_max *
sizeof(unsigned int));
for (pitch = 1; pitch <= pitch_max; pitch++)
s->resx_list[pitch - 1] = s->resx_max / pitch;
/* generate resolution list for y */
s->resy_n_list = pitch_max =
floor(s->resy_max / (double) s->resy_min);
s->resy_list =
(unsigned int *) cs3_xrealloc(s->resy_list,
pitch_max *
sizeof(unsigned int));
for (pitch = 1; pitch <= pitch_max; pitch++)
s->resy_list[pitch - 1] = s->resy_max / pitch;
s->unit_dpi = s->resx_max;
s->unit_mm = 25.4 / s->unit_dpi;
DBG(4, " maximum depth: %d\n", s->maxbits);
DBG(4, " focus: %d/%d\n", s->focus_min, s->focus_max);
DBG(4, " resolution (x): %d (%d-%d)\n", s->resx_optical,
s->resx_min, s->resx_max);
DBG(4, " resolution (y): %d (%d-%d)\n", s->resy_optical,
s->resy_min, s->resy_max);
DBG(4, " frames: %d\n", s->n_frames);
DBG(4, " frame offset: %ld\n", s->frame_offset);
return SANE_STATUS_GOOD;
}
static SANE_Status
cs3_execute(cs3_t * s)
{
DBG(16, "%s\n", __func__);
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
cs3_init_buffer(s);
cs3_parse_cmd(s, "c1 00 00 00 00 00");
return cs3_issue_cmd(s);
}
static SANE_Status
cs3_issue_and_execute(cs3_t * s)
{
SANE_Status status;
DBG(10, "%s, opcode = %02x\n", __func__, s->send_buf[0]);
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD)
return status;
return cs3_execute(s);
}
static SANE_Status
cs3_mode_select(cs3_t * s)
{
DBG(4, "%s\n", __func__);
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
cs3_init_buffer(s);
cs3_parse_cmd(s,
"15 10 00 00 14 00 00 00 00 08 00 00 00 00 00 00 00 01 03 06 00 00");
cs3_pack_word(s, s->unit_dpi);
cs3_parse_cmd(s, "00 00");
return cs3_issue_cmd(s);
}
static SANE_Status
cs3_load(cs3_t * s)
{
SANE_Status status;
DBG(6, "%s\n", __func__);
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
cs3_init_buffer(s);
cs3_parse_cmd(s, "e0 00 d1 00 00 00 00 00 0d 00");
s->n_send += 13;
status = cs3_grow_send_buffer(s);
if (status != SANE_STATUS_GOOD)
return status;
return cs3_issue_and_execute(s);
}
static SANE_Status
cs3_eject(cs3_t * s)
{
SANE_Status status;
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
cs3_init_buffer(s);
cs3_parse_cmd(s, "e0 00 d0 00 00 00 00 00 0d 00");
s->n_send += 13;
status = cs3_grow_send_buffer(s);
if (status != SANE_STATUS_GOOD)
return status;
return cs3_issue_and_execute(s);
}
static SANE_Status
cs3_reset(cs3_t * s)
{
SANE_Status status;
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
cs3_init_buffer(s);
cs3_parse_cmd(s, "e0 00 80 00 00 00 00 00 0d 00");
s->n_send += 13;
status = cs3_grow_send_buffer(s);
if (status != SANE_STATUS_GOOD)
return status;
return cs3_issue_and_execute(s);
}
static SANE_Status
cs3_reserve_unit(cs3_t * s)
{
DBG(10, "%s\n", __func__);
cs3_init_buffer(s);
cs3_parse_cmd(s, "16 00 00 00 00 00");
return cs3_issue_cmd(s);
}
static SANE_Status
cs3_release_unit(cs3_t * s)
{
DBG(10, "%s\n", __func__);
cs3_init_buffer(s);
cs3_parse_cmd(s, "17 00 00 00 00 00");
return cs3_issue_cmd(s);
}
static SANE_Status
cs3_set_focus(cs3_t * s)
{
DBG(6, "%s: setting focus to %d\n", __func__, s->focus);
cs3_scanner_ready(s, CS3_STATUS_READY);
cs3_init_buffer(s);
cs3_parse_cmd(s, "e0 00 c1 00 00 00 00 00 09 00 00");
cs3_pack_long(s, s->focus);
cs3_parse_cmd(s, "00 00 00 00");
return cs3_issue_and_execute(s);
}
static SANE_Status
cs3_read_focus(cs3_t * s)
{
SANE_Status status;
cs3_scanner_ready(s, CS3_STATUS_READY);
cs3_init_buffer(s);
cs3_parse_cmd(s, "e1 00 c1 00 00 00 00 00 0d 00");
s->n_recv = 13;
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD)
return status;
s->focus =
65536 * (256 * s->recv_buf[1] + s->recv_buf[2]) +
256 * s->recv_buf[3] + s->recv_buf[4];
DBG(4, "%s: focus at %d\n", __func__, s->focus);
return status;
}
static SANE_Status
cs3_autofocus(cs3_t * s)
{
SANE_Status status;
DBG(6, "%s: focusing at %ld,%ld\n", __func__,
s->real_focusx, s->real_focusy);
cs3_convert_options(s);
status = cs3_read_focus(s);
if (status != SANE_STATUS_GOOD)
return status;
/* set parameter, autofocus */
cs3_scanner_ready(s, CS3_STATUS_READY);
cs3_init_buffer(s);
cs3_parse_cmd(s, "e0 00 a0 00 00 00 00 00 09 00 00");
cs3_pack_long(s, s->real_focusx);
cs3_pack_long(s, s->real_focusy);
/*cs3_parse_cmd(s, "00 00 00 00"); */
status = cs3_issue_and_execute(s);
if (status != SANE_STATUS_GOOD)
return status;
return cs3_read_focus(s);
}
static SANE_Status
cs3_autoexposure(cs3_t * s, int wb)
{
SANE_Status status;
DBG(6, "%s, wb = %d\n", __func__, wb);
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
status = cs3_scan(s, wb ? CS3_SCAN_AE_WB : CS3_SCAN_AE);
if (status != SANE_STATUS_GOOD)
return status;
status = cs3_get_exposure(s);
if (status != SANE_STATUS_GOOD)
return status;
s->exposure = 1.;
s->exposure_r = s->real_exposure[1] / 100.;
s->exposure_g = s->real_exposure[2] / 100.;
s->exposure_b = s->real_exposure[3] / 100.;
return status;
}
static SANE_Status
cs3_get_exposure(cs3_t * s)
{
SANE_Status status;
int i_color, colors = s->n_colors;
DBG(6, "%s\n", __func__);
if ((s->type == CS3_TYPE_LS50) || (s->type == CS3_TYPE_LS5000))
colors = 3;
cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
/* GET WINDOW */
for (i_color = 0; i_color < colors; i_color++) { /* XXXXXXXXXXXXX CCCCCCCCCCCCC */
cs3_init_buffer(s);
cs3_parse_cmd(s, "25 01 00 00 00");
cs3_pack_byte(s, cs3_colors[i_color]);
cs3_parse_cmd(s, "00 00 3a 00");
s->n_recv = 58;
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD)
return status;
s->real_exposure[cs3_colors[i_color]] =
65536 * (256 * s->recv_buf[54] + s->recv_buf[55]) +
256 * s->recv_buf[56] + s->recv_buf[57];
DBG(6,
"%s, exposure for color %i: %li * 10ns\n",
__func__,
cs3_colors[i_color],
s->real_exposure[cs3_colors[i_color]]);
DBG(6, "%02x %02x %02x %02x\n", s->recv_buf[48],
s->recv_buf[49], s->recv_buf[50], s->recv_buf[51]);
}
return SANE_STATUS_GOOD;
}
static SANE_Status
cs3_convert_options(cs3_t * s)
{
int i_color;
unsigned long xmin, xmax, ymin, ymax;
DBG(4, "%s\n", __func__);
s->real_depth = (s->preview ? 8 : s->depth);
s->bytes_per_pixel = (s->real_depth > 8 ? 2 : 1);
s->shift_bits = 8 * s->bytes_per_pixel - s->real_depth;
DBG(12, " depth = %d, bpp = %d, shift = %d\n",
s->real_depth, s->bytes_per_pixel, s->shift_bits);
if (s->preview) {
s->real_resx = s->res_preview;
s->real_resy = s->res_preview;
} else if (s->res_independent) {
s->real_resx = s->resx;
s->real_resy = s->resy;
} else {
s->real_resx = s->res;
s->real_resy = s->res;
}
s->real_pitchx = s->resx_max / s->real_resx;
s->real_pitchy = s->resy_max / s->real_resy;
s->real_resx = s->resx_max / s->real_pitchx;
s->real_resy = s->resy_max / s->real_pitchy;
DBG(12, " resx = %d, resy = %d, pitchx = %d, pitchy = %d\n",
s->real_resx, s->real_resy, s->real_pitchx, s->real_pitchy);
/* The prefix "real_" refers to data in device units (1/maxdpi),
* "logical_" refers to resolution-dependent data.
*/
if (s->xmin < s->xmax) {
xmin = s->xmin;
xmax = s->xmax;
} else {
xmin = s->xmax;
xmax = s->xmin;
}
if (s->ymin < s->ymax) {
ymin = s->ymin;
ymax = s->ymax;
} else {
ymin = s->ymax;
ymax = s->ymin;
}
DBG(12, " xmin = %ld, xmax = %ld\n", xmin, xmax);
DBG(12, " ymin = %ld, ymax = %ld\n", ymin, ymax);
s->real_xoffset = xmin;
s->real_yoffset =
ymin + (s->i_frame - 1) * s->frame_offset +
s->subframe / s->unit_mm;
DBG(12, " xoffset = %ld, yoffset = %ld\n",
s->real_xoffset, s->real_yoffset);
s->logical_width = (xmax - xmin + 1) / s->real_pitchx; /* XXX use mm units */
s->logical_height = (ymax - ymin + 1) / s->real_pitchy;
s->real_width = s->logical_width * s->real_pitchx;
s->real_height = s->logical_height * s->real_pitchy;
DBG(12, " lw = %ld, lh = %ld, rw = %ld, rh = %ld\n",
s->logical_width, s->logical_height,
s->real_width, s->real_height);
s->odd_padding = 0;
if ((s->bytes_per_pixel == 1) && (s->logical_width & 0x01)
&& (s->type != CS3_TYPE_LS30) && (s->type != CS3_TYPE_LS2000))
s->odd_padding = 1;
if (s->focus_on_centre) {
s->real_focusx = s->real_xoffset + s->real_width / 2;
s->real_focusy = s->real_yoffset + s->real_height / 2;
} else {
s->real_focusx = s->focusx;
s->real_focusy =
s->focusy + (s->i_frame - 1) * s->frame_offset +
s->subframe / s->unit_mm;
}
DBG(12, " focusx = %ld, focusy = %ld\n",
s->real_focusx, s->real_focusy);
s->real_exposure[1] = s->exposure * s->exposure_r * 100.;
s->real_exposure[2] = s->exposure * s->exposure_g * 100.;
s->real_exposure[3] = s->exposure * s->exposure_b * 100.;
/* XXX IR? */
for (i_color = 0; i_color < 3; i_color++)
if (s->real_exposure[cs3_colors[i_color]] < 1)
s->real_exposure[cs3_colors[i_color]] = 1;
s->n_colors = 3; /* XXXXXXXXXXXXXX CCCCCCCCCCCCCC */
if (s->infrared)
s->n_colors = 4;
s->xfer_bytes_total =
s->bytes_per_pixel * s->n_colors * s->logical_width *
s->logical_height;
if (s->preview)
s->infrared = SANE_FALSE;
return SANE_STATUS_GOOD;
}
static SANE_Status
cs3_set_boundary(cs3_t * s)
{
SANE_Status status;
int i_boundary;
/* Ariel - Check this function */
cs3_scanner_ready(s, CS3_STATUS_READY);
cs3_init_buffer(s);
cs3_parse_cmd(s, "2a 00 88 00 00 03");
cs3_pack_byte(s, ((4 + s->n_frames * 16) >> 16) & 0xff);
cs3_pack_byte(s, ((4 + s->n_frames * 16) >> 8) & 0xff);
cs3_pack_byte(s, (4 + s->n_frames * 16) & 0xff);
cs3_parse_cmd(s, "00");
cs3_pack_byte(s, ((4 + s->n_frames * 16) >> 8) & 0xff);
cs3_pack_byte(s, (4 + s->n_frames * 16) & 0xff);
cs3_pack_byte(s, s->n_frames);
cs3_pack_byte(s, s->n_frames);
for (i_boundary = 0; i_boundary < s->n_frames; i_boundary++) {
unsigned long lvalue = s->frame_offset * i_boundary +
s->subframe / s->unit_mm;
cs3_pack_long(s, lvalue);
cs3_pack_long(s, 0);
lvalue = s->frame_offset * i_boundary +
s->subframe / s->unit_mm + s->frame_offset - 1;
cs3_pack_long(s, lvalue);
cs3_pack_long(s, s->boundaryx - 1);
}
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD)
return status;
return SANE_STATUS_GOOD;
}
static SANE_Status
cs3_send_lut(cs3_t * s)
{
int color;
SANE_Status status;
cs3_pixel_t *lut, pixel;
DBG(6, "%s\n", __func__);
for (color = 0; color < s->n_colors; color++) {
/*cs3_scanner_ready(s, CS3_STATUS_READY); */
switch (color) {
case 0:
lut = s->lut_r;
break;
case 1:
lut = s->lut_g;
break;
case 2:
lut = s->lut_b;
break;
case 3:
lut = s->lut_neutral;
break;
default:
DBG(1,
"BUG: %s: Unknown color number for LUT download.\n",
__func__);
return SANE_STATUS_INVAL;
break;
}
cs3_init_buffer(s);
cs3_parse_cmd(s, "2a 00 03 00");
cs3_pack_byte(s, cs3_colors[color]);
cs3_pack_byte(s, 2 - 1); /* XXX number of bytes per data point - 1 */
cs3_pack_byte(s, ((2 * s->n_lut) >> 16) & 0xff); /* XXX 2 bytes per point */
cs3_pack_byte(s, ((2 * s->n_lut) >> 8) & 0xff); /* XXX 2 bytes per point */
cs3_pack_byte(s, (2 * s->n_lut) & 0xff); /* XXX 2 bytes per point */
cs3_pack_byte(s, 0x00);
for (pixel = 0; pixel < s->n_lut; pixel++) { /* XXX 2 bytes per point */
cs3_pack_word(s, lut[pixel]);
}
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD)
return status;
}
return status;
}
static SANE_Status
cs3_set_window(cs3_t * s, cs3_scan_t type)
{
int color;
SANE_Status status = SANE_STATUS_INVAL;
/* SET WINDOW */
for (color = 0; color < s->n_colors; color++) {
DBG(8, "%s: color %d\n", __func__, cs3_colors[color]);
cs3_scanner_ready(s, CS3_STATUS_READY);
cs3_init_buffer(s);
if ((s->type == CS3_TYPE_LS40)
|| (s->type == CS3_TYPE_LS4000)
|| (s->type == CS3_TYPE_LS50)
|| (s->type == CS3_TYPE_LS5000))
cs3_parse_cmd(s, "24 00 00 00 00 00 00 00 3a 80");
else
cs3_parse_cmd(s, "24 00 00 00 00 00 00 00 3a 00");
cs3_parse_cmd(s, "00 00 00 00 00 00 00 32");
cs3_pack_byte(s, cs3_colors[color]);
cs3_pack_byte(s, 0x00);
cs3_pack_word(s, s->real_resx);
cs3_pack_word(s, s->real_resy);
cs3_pack_long(s, s->real_xoffset);
cs3_pack_long(s, s->real_yoffset);
cs3_pack_long(s, s->real_width);
cs3_pack_long(s, s->real_height);
cs3_pack_byte(s, 0x00); /* brightness, etc. */
cs3_pack_byte(s, 0x00);
cs3_pack_byte(s, 0x00);
cs3_pack_byte(s, 0x05); /* image composition CCCCCCC */
cs3_pack_byte(s, s->real_depth); /* pixel composition */
cs3_parse_cmd(s, "00 00 00 00 00 00 00 00 00 00 00 00 00");
cs3_pack_byte(s, ((s->samples_per_scan - 1) << 4) | 0x00); /* multiread, ordering */
cs3_pack_byte(s, 0x80 | (s->negative ? 0 : 1)); /* averaging, pos/neg */
switch (type) { /* scanning kind */
case CS3_SCAN_NORMAL:
cs3_pack_byte(s, 0x01);
break;
case CS3_SCAN_AE:
cs3_pack_byte(s, 0x20);
break;
case CS3_SCAN_AE_WB:
cs3_pack_byte(s, 0x40);
break;
default:
DBG(1, "BUG: cs3_scan(): Unknown scanning type.\n");
return SANE_STATUS_INVAL;
}
if (s->samples_per_scan == 1)
cs3_pack_byte(s, 0x02); /* scanning mode single */
else
cs3_pack_byte(s, 0x10); /* scanning mode multi */
cs3_pack_byte(s, 0x02); /* color interleaving */
cs3_pack_byte(s, 0xff); /* (ae) */
if (color == 3) /* infrared */
cs3_parse_cmd(s, "00 00 00 00"); /* automatic */
else {
DBG(4, "%s: exposure = %ld * 10ns\n", __func__,
s->real_exposure[cs3_colors[color]]);
cs3_pack_long(s, s->real_exposure[cs3_colors[color]]);
}
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD)
return status;
}
return status;
}
static SANE_Status
cs3_scan(cs3_t * s, cs3_scan_t type)
{
SANE_Status status;
s->block_padding = 0;
DBG(6, "%s, type = %d, colors = %d\n", __func__, type, s->n_colors);
switch (type) {
case CS3_SCAN_NORMAL:
DBG(16, "%s: normal scan\n", __func__);
break;
case CS3_SCAN_AE:
DBG(16, "%s: ae scan\n", __func__);
break;
case CS3_SCAN_AE_WB:
DBG(16, "%s: ae wb scan\n", __func__);
break;
}
/* wait for device to be ready with document, and set device unit */
status = cs3_scanner_ready(s, CS3_STATUS_NO_DOCS);
if (status != SANE_STATUS_GOOD)
return status;
if (s->status & CS3_STATUS_NO_DOCS)
return SANE_STATUS_NO_DOCS;
status = cs3_convert_options(s);
if (status != SANE_STATUS_GOOD)
return status;
status = cs3_set_boundary(s);
if (status != SANE_STATUS_GOOD)
return status;
cs3_set_focus(s);
cs3_scanner_ready(s, CS3_STATUS_READY);
if (type == CS3_SCAN_NORMAL)
cs3_send_lut(s);
status = cs3_set_window(s, type);
if (status != SANE_STATUS_GOOD)
return status;
status = cs3_get_exposure(s);
if (status != SANE_STATUS_GOOD)
return status;
/* cs3_scanner_ready(s, CS3_STATUS_READY); */
cs3_init_buffer(s);
switch (s->n_colors) {
case 3:
cs3_parse_cmd(s, "1b 00 00 00 03 00 01 02 03");
break;
case 4:
cs3_parse_cmd(s, "1b 00 00 00 04 00 01 02 03 09");
break;
default:
DBG(0, "BUG: %s: Unknown number of input colors.\n",
__func__);
break;
}
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD) {
DBG(6, "scan setup failed\n");
return status;
}
if (s->status == CS3_STATUS_REISSUE) {
status = cs3_issue_cmd(s);
if (status != SANE_STATUS_GOOD)
return status;
}
return SANE_STATUS_GOOD;
}
static void *
cs3_xmalloc(size_t size)
{
register void *value = malloc(size);
if (value == NULL) {
DBG(0, "error: %s: failed to malloc() %lu bytes.\n",
__func__, (unsigned long) size);
}
return value;
}
static void *
cs3_xrealloc(void *p, size_t size)
{
register void *value;
if (!size)
return p;
value = realloc(p, size);
if (value == NULL) {
DBG(0, "error: %s: failed to realloc() %lu bytes.\n",
__func__, (unsigned long) size);
}
return value;
}
static void
cs3_xfree(const void *p)
{
if (p)
free(p);
}
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