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mustek_usb_high.c
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mustek_usb_high.c
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/* sane - Scanner Access Now Easy.
Copyright (C) 2000 Mustek.
Originally maintained by Tom Wang <tom.wang@mustek.com.tw>
Copyright (C) 2001, 2002 by Henning Meier-Geinitz.
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.
This file implements a SANE backend for Mustek 1200UB and similar
USB flatbed scanners. */
#include "mustek_usb_high.h"
#include "mustek_usb_mid.c"
/* ------------------------ calibration functions ------------------------- */
static SANE_Byte gray_map[8] = {
0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01
};
static inline double
filter_lower_end (SANE_Int * buffer, SANE_Word total_count,
SANE_Word filter_count)
{
SANE_Word bound = total_count - 1;
SANE_Word left_count = total_count - filter_count;
SANE_Int temp = 0;
SANE_Word i, j;
SANE_Int sum = 0;
for (i = 0; i < bound; i++)
{
for (j = 0; j < bound - i; j++)
{
if (buffer[j + 1] > buffer[j])
{
temp = buffer[j];
buffer[j] = buffer[j + 1];
buffer[j + 1] = temp;
}
}
}
for (i = 0; i < left_count; i++)
sum += buffer[i];
return (double) sum;
}
SANE_Status
usb_high_cal_init (Calibrator * cal, SANE_Byte type, SANE_Word target_white,
SANE_Word target_dark)
{
DBG (5, "usb_high_cal_init: start, cal=%p, type=%d, target_white=%d "
"target_dark=%d\n", (void *) cal, type, target_white, target_dark);
cal->is_prepared = SANE_FALSE;
cal->k_white = NULL;
cal->k_dark = NULL;
/* Working Buffer */
cal->white_line = NULL;
cal->dark_line = NULL;
cal->white_buffer = NULL;
/* Necessary Parameters */
cal->k_white_level = 240 << 8;
cal->k_dark_level = 0;
cal->threshold = 2048;
cal->major_average = 0;
cal->minor_average = 0;
cal->filter = 0;
cal->white_needed = 0;
cal->dark_needed = 0;
cal->max_width = 0;
cal->width = 100;
cal->gamma_table = 0;
cal->calibrator_type = type;
cal->k_white_level = target_white / 16;
cal->k_dark_level = 0;
DBG (5, "usb_high_cal_init: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_exit (Calibrator * cal)
{
DBG (5, "usb_high_cal_exit: start\n");
if (!cal)
{
DBG (3, "usb_high_cal_exit: cal == NULL\n");
return SANE_STATUS_INVAL;
}
if (!cal->is_prepared)
{
DBG (3, "usb_high_cal_exit: !is_prepared\n");
return SANE_STATUS_INVAL;
}
DBG (5, "usb_high_cal_exit: 1\n");
if (cal->k_dark)
{
free (cal->k_dark);
}
cal->k_dark = NULL;
DBG (5, "usb_high_cal_exit: 2\n");
if (cal->k_white)
{
free (cal->k_white);
}
cal->k_white = NULL;
DBG (5, "usb_high_cal_exit: 3\n");
cal->is_prepared = SANE_FALSE;
DBG (5, "usb_high_cal_exit: 4\n");
DBG (5, "usb_high_cal_exit: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_embed_gamma (Calibrator * cal, SANE_Word * gamma_table)
{
DBG (5, "usb_high_cal_embed_gamma: start\n");
cal->gamma_table = gamma_table;
DBG (5, "usb_high_cal_embed_gamma: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_prepare (Calibrator * cal, SANE_Word max_width)
{
DBG (5, "usb_high_cal_Parepare: start\n");
if (cal->is_prepared)
{
DBG (3, "usb_high_cal_Parepare: is_prepared\n");
return SANE_STATUS_INVAL;
}
if (cal->k_white)
{
free (cal->k_white);
}
cal->k_white = (SANE_Word *) malloc (max_width * sizeof (SANE_Word));
if (!cal->k_white)
return SANE_STATUS_NO_MEM;
if (cal->k_dark)
{
free (cal->k_dark);
}
cal->k_dark = (SANE_Word *) malloc (max_width * sizeof (SANE_Word));
if (!cal->k_dark)
return SANE_STATUS_NO_MEM;
cal->max_width = max_width;
cal->is_prepared = SANE_TRUE;
DBG (5, "usb_high_cal_Parepare: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_setup (Calibrator * cal, SANE_Word major_average,
SANE_Word minor_average, SANE_Word filter,
SANE_Word width, SANE_Word * white_needed,
SANE_Word * dark_needed)
{
SANE_Int i;
DBG (5, "usb_high_cal_setup: start\n");
if (!cal->is_prepared)
{
DBG (3, "usb_high_cal_setup: !is_prepared\n");
return SANE_STATUS_INVAL;
}
if (major_average == 0)
{
DBG (3, "usb_high_cal_setup: major_average==0\n");
return SANE_STATUS_INVAL;
}
if (minor_average == 0)
{
DBG (3, "usb_high_cal_setup: minor_average==0\n");
return SANE_STATUS_INVAL;
}
if (width > cal->max_width)
{
DBG (3, "usb_high_cal_setup: width>max_width\n");
return SANE_STATUS_INVAL;
}
cal->major_average = major_average;
cal->minor_average = minor_average;
cal->filter = filter;
cal->width = width;
cal->white_needed = major_average * 16 + filter;
cal->dark_needed = major_average * 16;
*white_needed = cal->white_needed;
*dark_needed = cal->dark_needed;
if (cal->white_line)
{
free (cal->white_line);
}
cal->white_line = (double *) malloc (cal->width * sizeof (double));
if (!cal->white_line)
return SANE_STATUS_NO_MEM;
if (cal->dark_line)
{
free (cal->dark_line);
}
cal->dark_line = (double *) malloc (cal->width * sizeof (double));
if (!cal->dark_line)
return SANE_STATUS_NO_MEM;
for (i = 0; i < cal->width; i++)
{
cal->white_line[i] = 0.0;
cal->dark_line[i] = 0.0;
}
if (cal->white_buffer)
{
free (cal->white_buffer);
}
cal->white_buffer =
(SANE_Int *) malloc (cal->white_needed * cal->width * sizeof (SANE_Int));
if (!cal->white_buffer)
return SANE_STATUS_NO_MEM;
for (i = 0; i < cal->white_needed * cal->width; i++)
{
*(cal->white_buffer + i) = 0;
}
return SANE_STATUS_GOOD;
DBG (5, "usb_high_cal_setup: start\n");
}
SANE_Status
usb_high_cal_evaluate_white (Calibrator * cal, double factor)
{
/* Caculate white_line */
double loop_division;
double average;
SANE_Int *buffer;
SANE_Word i, j;
DBG (5, "usb_high_cal_evaluate_white: start\n");
loop_division = (double) (cal->major_average * cal->minor_average);
buffer = (SANE_Int *) malloc (cal->white_needed * sizeof (SANE_Int));
if (!buffer)
return SANE_STATUS_NO_MEM;
if (cal->white_buffer == NULL)
{
DBG (3, "usb_high_cal_evaluate_white: white_buffer==NULL\n");
return SANE_STATUS_NO_MEM;
}
for (i = 0; i < cal->width; i++)
{
for (j = 0; j < cal->white_needed; j++)
{
*(buffer + j) = *(cal->white_buffer + j * cal->width + i);
}
average =
filter_lower_end (buffer, cal->white_needed,
cal->filter) * factor / loop_division;
if (average >= 4096.0)
cal->white_line[i] = 4095.9999;
else if (average < 0.0)
cal->white_line[i] = 0.0;
else
cal->white_line[i] = average;
}
free (buffer);
buffer = NULL;
free (cal->white_buffer);
cal->white_buffer = NULL;
DBG (5, "usb_high_cal_evaluate_white: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_evaluate_dark (Calibrator * cal, double factor)
{
SANE_Word i;
double loop_division;
DBG (5, "usb_high_cal_evaluate_dark: start\n");
/* Caculate dark_line */
factor *= 16.0;
loop_division = (double) (cal->major_average * cal->minor_average);
for (i = 0; i < cal->width; i++)
{
cal->dark_line[i] /= loop_division;
cal->dark_line[i] -= factor;
if (cal->dark_line[i] < 0.0)
cal->dark_line[i] = 0.0;
}
DBG (5, "usb_high_cal_evaluate_dark: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_evaluate_calibrator (Calibrator * cal)
{
SANE_Int average = 0;
SANE_Word i;
DBG (5, "usb_high_cal_evaluate_calibrator: start\n");
if (cal->white_line == NULL)
{
DBG (3, "usb_high_cal_evaluate_calibrator: white_line==NULL\n");
return SANE_FALSE;
}
if (cal->dark_line == NULL)
{
DBG (3, "usb_high_cal_evaluate_calibrator: dark_line==NULL\n");
return SANE_FALSE;
}
for (i = 0; i < cal->width; i++)
{
average = (SANE_Int) (cal->white_line[i])
- (SANE_Int) (cal->dark_line[i]);
if (average <= 0)
average = 1;
else if (average >= 4096)
average = 4095;
cal->k_white[i] = (SANE_Word) (average);
cal->k_dark[i] = (SANE_Word) (cal->dark_line[i]);
}
free (cal->dark_line);
cal->dark_line = NULL;
free (cal->white_line);
cal->white_line = NULL;
DBG (5, "usb_high_cal_evaluate_calibrator: start\n");
return SANE_STATUS_GOOD;
}
/* virtual function switcher */
SANE_Status
usb_high_cal_fill_in_white (Calibrator * cal, SANE_Word major,
SANE_Word minor, void *white_pattern)
{
DBG (5, "usb_high_cal_fill_in_white: start\n");
switch (cal->calibrator_type)
{
case I8O8RGB:
case I8O8MONO:
return usb_high_cal_i8o8_fill_in_white (cal, major, minor,
white_pattern);
break;
case I4O1MONO:
return usb_high_cal_i4o1_fill_in_white (cal, major, minor,
white_pattern);
break;
}
DBG (5, "usb_high_cal_fill_in_white: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_fill_in_dark (Calibrator * cal, SANE_Word major, SANE_Word minor,
void *dark_pattern)
{
DBG (5, "usb_high_cal_fill_in_dark: start\n");
switch (cal->calibrator_type)
{
case I8O8RGB:
case I8O8MONO:
return usb_high_cal_i8o8_fill_in_dark (cal, major, minor, dark_pattern);
break;
case I4O1MONO:
return usb_high_cal_i4o1_fill_in_dark (cal, major, minor, dark_pattern);
break;
}
DBG (5, "usb_high_cal_fill_in_dark: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_calibrate (Calibrator * cal, void *src, void *target)
{
DBG (5, "usb_high_cal_calibrate: start\n");
switch (cal->calibrator_type)
{
case I8O8RGB:
return usb_high_cal_i8o8_rgb_calibrate (cal, src, target);
break;
case I8O8MONO:
return usb_high_cal_i8o8_mono_calibrate (cal, src, target);
break;
case I4O1MONO:
return usb_high_cal_i4o1_calibrate (cal, src, target);
break;
}
DBG (5, "usb_high_cal_calibrate: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_i8o8_fill_in_white (Calibrator * cal, SANE_Word major,
SANE_Word minor, void *white_pattern)
{
SANE_Byte *pattern;
SANE_Word j;
pattern = (SANE_Byte *) white_pattern;
DBG (5, "usb_high_cal_i8o8_fill_in_white: start, minor=%d\n", minor);
if (!cal->is_prepared)
{
DBG (3, "usb_high_cal_i8o8_fill_in_white: !is_prepared\n");
return SANE_STATUS_INVAL;
}
if (cal->white_needed == 0)
{
DBG (3, "usb_high_cal_i8o8_fill_in_white: white_needed==0\n");
return SANE_STATUS_INVAL;
}
for (j = 0; j < cal->width; j++)
{
*(cal->white_buffer + major * cal->width + j) +=
(SANE_Int) (pattern[j]);
}
DBG (5, "usb_high_cal_i8o8_fill_in_white: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_i8o8_fill_in_dark (Calibrator * cal, SANE_Word major,
SANE_Word minor, void *dark_pattern)
{
SANE_Byte *pattern = (SANE_Byte *) dark_pattern;
SANE_Word j;
DBG (5, "usb_high_cal_i8o8_fill_in_dark: start, major=%d, minor=%d\n",
major, minor);
if (!cal->is_prepared)
{
DBG (3, "usb_high_cal_i8o8_fill_in_dark: !is_prepared\n");
return SANE_FALSE;
}
if (cal->dark_needed == 0)
{
DBG (3, "usb_high_cal_i8o8_fill_in_dark: dark_needed==0\n");
return SANE_FALSE;
}
for (j = 0; j < cal->width; j++)
{
cal->dark_line[j] += (double) (pattern[j]);
}
DBG (5, "usb_high_cal_i8o8_fill_in_dark: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_i4o1_fill_in_white (Calibrator * cal, SANE_Word major,
SANE_Word minor, void *white_pattern)
{
SANE_Byte *pattern;
SANE_Word j = 0;
pattern = (SANE_Byte *) white_pattern;
DBG (5, "usb_high_cal_i4o1_fill_in_white: minor=%d\n", minor);
if (!cal->is_prepared)
{
DBG (3, "usb_high_cal_i4o1_fill_in_white: !is_prepared\n");
return SANE_STATUS_INVAL;
}
if (cal->white_needed == 0)
{
DBG (3, "usb_high_cal_i4o1_fill_in_white: white_needed==0\n");
return SANE_STATUS_INVAL;
}
while (j < cal->width)
{
*(cal->white_buffer + major * cal->width + j) +=
(SANE_Int) (*(pattern) & 0xf0);
j++;
if (j >= cal->width)
break;
*(cal->white_buffer + major * cal->width + j) +=
(SANE_Int) ((SANE_Byte) (*(pattern++) << 4));
j++;
}
DBG (5, "usb_high_cal_i8o8_fill_in_white: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_i4o1_fill_in_dark (Calibrator * cal, SANE_Word major,
SANE_Word minor, void *dark_pattern)
{
SANE_Byte *pattern;
SANE_Word j = 0;
pattern = (SANE_Byte *) dark_pattern;
DBG (5, "usb_high_cal_i4o1_fill_in_dark: start, major=%d, minor=%d\n",
major, minor);
if (!cal->is_prepared)
{
DBG (3, "usb_high_cal_i4o1_fill_in_dark: !is_prepared\n");
return SANE_STATUS_INVAL;
}
if (cal->dark_needed == 0)
{
DBG (5, "usb_high_cal_i4o1_fill_in_dark: dark_needed==0\n");
return SANE_STATUS_INVAL;
}
while (j < cal->width)
{
cal->dark_line[j++] += (double) (*(pattern) & 0xf0);
if (j >= cal->width)
break;
cal->dark_line[j++] += (double) ((SANE_Byte) (*(pattern++) << 4));
}
DBG (5, "usb_high_cal_i4o1_fill_in_dark: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_i8o8_mono_calibrate (Calibrator * cal, void *src, void *target)
{
SANE_Byte *gray_src;
SANE_Byte *gray_target;
SANE_Int base = 0;
SANE_Word value = 0;
SANE_Word i;
DBG (5, "usb_high_cal_i8o8_mono_calibrate: start\n");
gray_src = (SANE_Byte *) src;
gray_target = (SANE_Byte *) target;
if (cal->gamma_table == NULL)
{
SANE_Word k_white_level = cal->k_white_level >> 4;
for (i = 0; i < cal->width; i++)
{
base = (SANE_Int) ((SANE_Word) (gray_src[i]) << 4)
- (SANE_Int) (cal->k_dark[i]);
if (base < 0)
base = 0;
value = ((SANE_Word) (base) * k_white_level) / cal->k_white[i];
if (value > 0x00ff)
value = 0x00ff;
gray_target[i] = (SANE_Byte) (value);
}
}
else
{
for (i = 0; i < cal->width; i++)
{
base = (SANE_Int) ((SANE_Word) (gray_src[i]) << 4)
- (SANE_Int) (cal->k_dark[i]);
if (base < 0)
base = 0;
value = ((SANE_Word) (base) * cal->k_white_level) / cal->k_white[i];
if (value > 0x0fff)
value = 0x0fff;
gray_target[i] = (SANE_Byte) (cal->gamma_table[value]);
}
}
DBG (5, "usb_high_cal_i8o8_mono_calibrate: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_i8o8_rgb_calibrate (Calibrator * cal, void *src, void *target)
{
SANE_Byte *gray_src;
SANE_Byte *rgb_target;
SANE_Int base = 0;
SANE_Word value = 0;
SANE_Word i;
DBG (5, "usb_high_cal_i8o8_rgb_calibrate: start\n");
gray_src = (SANE_Byte *) src;
rgb_target = (SANE_Byte *) target;
if (cal->gamma_table == NULL)
{
SANE_Word k_white_level = cal->k_white_level >> 4;
for (i = 0; i < cal->width; i++)
{
base = (SANE_Int) ((SANE_Word) (gray_src[i]) << 4)
- (SANE_Int) (cal->k_dark[i]);
if (base < 0)
base = 0;
value = ((SANE_Word) (base) * k_white_level) / cal->k_white[i];
if (value > 0x00ff)
value = 0x00ff;
*rgb_target = (SANE_Byte) (value);
rgb_target += 3;
}
}
else
{
for (i = 0; i < cal->width; i++)
{
base = (SANE_Int) ((SANE_Word) (gray_src[i]) << 4)
- (SANE_Int) (cal->k_dark[i]);
if (base < 0)
base = 0;
value = ((SANE_Word) (base) * cal->k_white_level) / cal->k_white[i];
if (value > 0x0fff)
value = 0x0fff;
*(rgb_target) = (SANE_Byte) (cal->gamma_table[value]);
rgb_target += 3;
}
}
DBG (5, "usb_high_cal_i8o8_rgb_calibrate: start\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_cal_i4o1_calibrate (Calibrator * cal, void *src, void *target)
{
SANE_Byte *local_src;
SANE_Byte *local_target;
SANE_Int base = 0;
SANE_Word value = 0;
SANE_Word j = 0;
SANE_Int count = 0;
DBG (5, "usb_high_cal_i4o1_calibrate: start\n");
local_src = (SANE_Byte *) src;
local_target = (SANE_Byte *) target;
*local_target = 0;
while (j < cal->width)
{
base =
(SANE_Int) ((SANE_Word) (*local_src & 0xf0) << 4)
- (SANE_Int) (cal->k_dark[j]);
if (base < 0)
base = 0;
value = ((SANE_Word) (base) * cal->k_white_level) / cal->k_white[j];
if (value > 0x0fff)
value = 0x0fff;
if (value >= cal->threshold)
*(local_target) |= gray_map[count];
count++;
j++;
if (j >= cal->width)
break;
base = (SANE_Int) ((SANE_Word) (*(local_src++) & 0x0f) << 8) -
(SANE_Int) (cal->k_dark[j]);
if (base < 0)
base = 0;
value = ((SANE_Word) (base) * cal->k_white_level) / cal->k_white[j];
if (value > 0x0fff)
value = 0x0fff;
if (value >= cal->threshold)
*(local_target) |= gray_map[count];
count++;
if (count >= 8)
{
local_target++;
*local_target = 0;
count = 0;
}
j++;
}
DBG (5, "usb_high_cal_i4o1_calibrate: exit\n");
return SANE_STATUS_GOOD;
}
/* --------------------------- scan functions ----------------------------- */
SANE_Status
usb_high_scan_init (Mustek_Usb_Device * dev)
{
SANE_Status status;
DBG (5, "usb_high_scan_init: start\n");
dev->init_bytes_per_strip = 8 * 1024;
dev->adjust_length_300 = 2560;
dev->adjust_length_600 = 5120;
dev->init_min_expose_time = 4992;
dev->init_skips_per_row_300 = 56; /* this value must be times of 6 */
dev->init_skips_per_row_600 = 72; /* this value must be times of 6 */
dev->init_j_lines = 154;
dev->init_k_lines = 16;
dev->init_k_filter = 8;
dev->init_k_loops = 2;
dev->init_pixel_rate_lines = 50;
dev->init_pixel_rate_filts = 37;
dev->init_powerdelay_lines = 2;
dev->init_home_lines = 160;
dev->init_dark_lines = 50;
dev->init_k_level = 245;
dev->init_max_power_delay = 240;
dev->init_min_power_delay = 136;
dev->init_adjust_way = 1;
dev->init_green_black_factor = 0.0;
dev->init_blue_black_factor = 0.0;
dev->init_red_black_factor = 0.0;
dev->init_gray_black_factor = 0.0;
dev->init_green_factor = 0.82004;
dev->init_blue_factor = 0.84954;
dev->init_red_factor = 0.826375;
dev->init_gray_factor = 0.833375;
dev->init_red_rgb_600_pga = 8;
dev->init_green_rgb_600_pga = 8;
dev->init_blue_rgb_600_pga = 8;
dev->init_mono_600_pga = 8;
dev->init_red_rgb_300_pga = 8;
dev->init_green_rgb_300_pga = 8;
dev->init_blue_rgb_300_pga = 8;
dev->init_mono_300_pga = 8;
dev->init_expose_time = 9024;
dev->init_red_rgb_600_power_delay = 80;
dev->init_green_rgb_600_power_delay = 80;
dev->init_blue_rgb_600_power_delay = 80;
dev->init_red_mono_600_power_delay = 80;
dev->init_green_mono_600_power_delay = 80;
dev->init_blue_mono_600_power_delay = 80;
dev->init_red_rgb_300_power_delay = 80;
dev->init_green_rgb_300_power_delay = 80;
dev->init_blue_rgb_300_power_delay = 80;
dev->init_red_mono_300_power_delay = 80;
dev->init_green_mono_300_power_delay = 80;
dev->init_blue_mono_300_power_delay = 80;
dev->init_threshold = 128;
dev->init_top_ref = 128;
dev->init_front_end = 16;
dev->init_red_offset = 0;
dev->init_green_offset = 0;
dev->init_blue_offset = 0;
dev->init_rgb_24_back_track = 80;
dev->init_mono_8_back_track = 80;
dev->is_open = SANE_FALSE;
dev->is_prepared = SANE_FALSE;
dev->expose_time = 4000;
dev->width = 2550;
dev->x_dpi = 300;
dev->y_dpi = 300;
dev->scan_mode = RGB24EXT;
dev->bytes_per_row = 2550 * 3;
dev->dummy = 0;
dev->bytes_per_strip = 2550;
dev->image_buffer = NULL;
dev->red = NULL;
dev->green = NULL;
dev->blue = NULL;
dev->get_line = NULL;
dev->backtrack = NULL;
dev->is_adjusted_rgb_600_power_delay = SANE_FALSE;
dev->is_adjusted_mono_600_power_delay = SANE_FALSE;
dev->is_adjusted_rgb_300_power_delay = SANE_FALSE;
dev->is_adjusted_mono_300_power_delay = SANE_FALSE;
dev->is_evaluate_pixel_rate = SANE_FALSE;
dev->red_rgb_600_pga = 0;
dev->green_rgb_600_pga = 0;
dev->blue_rgb_600_pga = 0;
dev->mono_600_pga = 0;
dev->red_rgb_600_power_delay = 0;
dev->green_rgb_600_power_delay = 0;
dev->blue_rgb_600_power_delay = 0;
dev->red_mono_600_power_delay = 0;
dev->green_mono_600_power_delay = 0;
dev->blue_mono_600_power_delay = 0;
dev->red_rgb_300_pga = 0;
dev->green_rgb_300_pga = 0;
dev->blue_rgb_300_pga = 0;
dev->mono_300_pga = 0;
dev->red_rgb_300_power_delay = 0;
dev->green_rgb_300_power_delay = 0;
dev->blue_rgb_300_power_delay = 0;
dev->red_mono_300_power_delay = 0;
dev->green_mono_300_power_delay = 0;
dev->blue_mono_300_power_delay = 0;
dev->pixel_rate = 2000;
dev->threshold = 128;
dev->gamma_table = 0;
dev->skips_per_row = 0;
dev->red_calibrator = NULL;
dev->green_calibrator = NULL;
dev->blue_calibrator = NULL;
dev->mono_calibrator = NULL;
dev->is_cis_detected = SANE_FALSE;
dev->is_sensor_detected = SANE_FALSE;
RIE (usb_low_init (&dev->chip));
DBG (5, "usb_high_scan_init: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_scan_exit (Mustek_Usb_Device * dev)
{
SANE_Status status;
DBG (5, "usb_high_scan_exit: start\n");
if (!dev->chip)
{
DBG (5, "usb_high_scan_exit: already exited (`%s')\n", dev->name);
return SANE_STATUS_INVAL;
}
RIE (usb_low_exit (dev->chip));
dev->chip = 0;
DBG (5, "usb_high_scan_exit: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_scan_prepare (Mustek_Usb_Device * dev)
{
DBG (5, "usb_high_scan_prepare: start dev=%p\n", (void *) dev);
if (dev->is_prepared)
{
DBG (5, "usb_high_scan_prepare: is already prepared\n");
return SANE_STATUS_GOOD;
}
if (dev->image_buffer)
{
free (dev->image_buffer);
}
dev->image_buffer = (SANE_Byte *) malloc (dev->init_bytes_per_strip * 3);
if (!dev->image_buffer)
return SANE_STATUS_NO_MEM;
dev->red = dev->image_buffer;
dev->green = dev->image_buffer + dev->init_bytes_per_strip;
dev->blue = dev->image_buffer + dev->init_bytes_per_strip * 2;
dev->is_prepared = SANE_TRUE;
DBG (5, "usb_high_scan_prepare: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_scan_clearup (Mustek_Usb_Device * dev)
{
DBG (5, "usb_high_scan_clearup: start, dev=%p\n", (void *) dev);
if (!dev->is_prepared)
{
DBG (3, "usb_high_scan_clearup: is not prepared\n");
return SANE_STATUS_INVAL;
}
if (dev->image_buffer)
{
free (dev->image_buffer);
}
dev->image_buffer = NULL;
dev->red = NULL;
dev->green = NULL;
dev->blue = NULL;
dev->is_prepared = SANE_FALSE;
DBG (5, "usb_high_scan_clearup: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_scan_turn_power (Mustek_Usb_Device * dev, SANE_Bool is_on)
{
SANE_Status status;
DBG (5, "usb_high_scan_turn_power: start, turn %s power\n",
is_on ? "on" : "off");
if (is_on)
{
if (dev->is_open)
{
DBG (3, "usb_high_scan_turn_power: wanted to turn on power, "
"but scanner already open\n");
return SANE_STATUS_INVAL;
}
RIE (usb_low_open (dev->chip, dev->device_name));
dev->is_open = SANE_TRUE;
RIE (usb_low_turn_peripheral_power (dev->chip, SANE_TRUE));
RIE (usb_low_turn_lamp_power (dev->chip, SANE_TRUE));
}
else
{
if (!dev->is_open)
{
DBG (3, "usb_high_scan_turn_power: wanted to turn off power, "
"but scanner already closed\n");
return SANE_STATUS_INVAL;
}
RIE (usb_low_turn_lamp_power (dev->chip, SANE_FALSE));
RIE (usb_low_close (dev->chip));
dev->is_open = SANE_FALSE;
}
DBG (5, "usb_high_scan_turn_power: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_scan_back_home (Mustek_Usb_Device * dev)
{
SANE_Status status;
DBG (5, "usb_high_scan_back_home: start\n");
if (!dev->is_open)
{
DBG (3, "usb_high_scan_back_home: not open\n");
return SANE_STATUS_INVAL;
}
RIE (usb_low_set_ccd_width (dev->chip, dev->init_min_expose_time));
RIE (usb_mid_motor_prepare_home (dev->chip));
DBG (5, "usb_high_scan_back_home: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_scan_set_threshold (Mustek_Usb_Device * dev, SANE_Byte threshold)
{
DBG (5, "usb_high_scan_set_threshold: start, dev=%p, threshold=%d\n",
(void *) dev, threshold);
dev->threshold = threshold;
DBG (5, "usb_high_scan_set_threshold: exit\n");
return SANE_STATUS_GOOD;
}
SANE_Status
usb_high_scan_embed_gamma (Mustek_Usb_Device * dev, SANE_Word * gamma_table)
{
DBG (5, "usb_high_scan_embed_gamma: start, dev=%p, gamma_table=%p\n",
(void *) dev, (void *) gamma_table);
if (!dev->is_prepared)
{
DBG (5, "usb_high_scan_embed_gamma !is_prepared\n");
return SANE_STATUS_INVAL;
}
dev->gamma_table = gamma_table;
DBG (5, "usb_high_scan_embed_gamma: exit\n");
return SANE_STATUS_GOOD;