kopia lustrzana https://gitlab.com/sane-project/backends
2653 wiersze
78 KiB
C++
2653 wiersze
78 KiB
C++
/* sane - Scanner Access Now Easy.
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Copyright (C) 2012-2013 Stéphane Voltz <stef.dev@free.fr>
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, the authors of SANE give permission for
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additional uses of the libraries contained in this release of SANE.
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The exception is that, if you link a SANE library with other files
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to produce an executable, this does not by itself cause the
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resulting executable to be covered by the GNU General Public
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License. Your use of that executable is in no way restricted on
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account of linking the SANE library code into it.
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This exception does not, however, invalidate any other reasons why
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the executable file might be covered by the GNU General Public
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License.
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If you submit changes to SANE to the maintainers to be included in
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a subsequent release, you agree by submitting the changes that
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those changes may be distributed with this exception intact.
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If you write modifications of your own for SANE, it is your choice
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whether to permit this exception to apply to your modifications.
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If you do not wish that, delete this exception notice.
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*/
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/** @file
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*
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* This file handles GL846 and GL845 ASICs since they are really close to each other.
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*/
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#define DEBUG_DECLARE_ONLY
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#include "genesys_gl846.h"
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#include <vector>
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/****************************************************************************
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Mid level functions
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****************************************************************************/
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static SANE_Bool
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gl846_get_fast_feed_bit (Genesys_Register_Set * regs)
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{
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GenesysRegister *r = NULL;
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r = sanei_genesys_get_address (regs, REG02);
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if (r && (r->value & REG02_FASTFED))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_get_filter_bit (Genesys_Register_Set * regs)
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{
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GenesysRegister *r = NULL;
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r = sanei_genesys_get_address (regs, REG04);
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if (r && (r->value & REG04_FILTER))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_get_lineart_bit (Genesys_Register_Set * regs)
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{
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GenesysRegister *r = NULL;
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r = sanei_genesys_get_address (regs, REG04);
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if (r && (r->value & REG04_LINEART))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_get_bitset_bit (Genesys_Register_Set * regs)
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{
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GenesysRegister *r = NULL;
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r = sanei_genesys_get_address (regs, REG04);
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if (r && (r->value & REG04_BITSET))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_get_gain4_bit (Genesys_Register_Set * regs)
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{
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GenesysRegister *r = NULL;
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r = sanei_genesys_get_address (regs, 0x06);
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if (r && (r->value & REG06_GAIN4))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_test_buffer_empty_bit (SANE_Byte val)
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{
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if (val & REG41_BUFEMPTY)
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_test_motor_flag_bit (SANE_Byte val)
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{
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if (val & REG41_MOTORENB)
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return SANE_TRUE;
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return SANE_FALSE;
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}
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/**
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* compute the step multiplier used
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*/
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static int
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gl846_get_step_multiplier (Genesys_Register_Set * regs)
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{
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GenesysRegister *r = NULL;
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int value = 1;
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r = sanei_genesys_get_address (regs, 0x9d);
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if (r != NULL)
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{
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value = (r->value & 0x0f)>>1;
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value = 1 << value;
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}
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DBG (DBG_io, "%s: step multiplier is %d\n", __func__, value);
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return value;
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}
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/** @brief sensor profile
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* search for the database of motor profiles and get the best one. Each
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* profile is at a specific dpihw. Use LiDE 110 table by default.
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* @param sensor_type sensor id
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* @param dpi hardware dpi for the scan
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* @return a pointer to a Sensor_Profile struct
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*/
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static const SensorProfile& get_sensor_profile(const Genesys_Sensor& sensor, unsigned dpi)
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{
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int best_i = -1;
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for (unsigned i = 0; i < sensor.sensor_profiles.size(); ++i) {
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// exact match
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if (sensor.sensor_profiles[i].dpi == dpi) {
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return sensor.sensor_profiles[i];
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}
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// closest match
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if (best_i < 0) {
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best_i = i;
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} else {
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if (sensor.sensor_profiles[i].dpi >= dpi &&
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sensor.sensor_profiles[i].dpi < sensor.sensor_profiles[best_i].dpi)
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{
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best_i = i;
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}
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}
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}
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// default fallback
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if (best_i < 0) {
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DBG(DBG_warn,"%s: using default sensor profile\n",__func__);
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return *s_fallback_sensor_profile_gl846;
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}
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return sensor.sensor_profiles[best_i];
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}
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/** @brief sensor specific settings
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*/
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static void gl846_setup_sensor(Genesys_Device * dev, const Genesys_Sensor& sensor,
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Genesys_Register_Set * regs, int dpi)
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{
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DBG_HELPER(dbg);
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int dpihw;
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uint16_t exp;
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for (uint16_t addr = 0x16; addr < 0x1e; addr++) {
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regs->set8(addr, sensor.custom_regs.get_value(addr));
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}
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for (uint16_t addr = 0x52; addr < 0x52 + 9; addr++) {
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regs->set8(addr, sensor.custom_regs.get_value(addr));
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}
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// set EXPDUMMY and CKxMAP
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dpihw = sensor.get_register_hwdpi(dpi);
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const auto& sensor_profile = get_sensor_profile(sensor, dpihw);
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for (const auto& reg : sensor_profile.custom_regs) {
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regs->set8(reg.address, reg.value);
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}
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/* if no calibration has been done, set default values for exposures */
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exp = sensor.exposure.red;
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if (exp == 0) {
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exp = sensor_profile.exposure.red;
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}
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regs->set16(REG_EXPR, exp);
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exp = sensor.exposure.green;
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if (exp == 0) {
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exp = sensor_profile.exposure.green;
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}
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regs->set16(REG_EXPG, exp);
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exp = sensor.exposure.blue;
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if (exp == 0) {
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exp = sensor_profile.exposure.blue;
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}
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regs->set16(REG_EXPB, exp);
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dev->segment_order = sensor_profile.segment_order;
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}
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/** @brief set all registers to default values .
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* This function is called only once at the beginning and
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* fills register startup values for registers reused across scans.
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* Those that are rarely modified or not modified are written
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* individually.
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* @param dev device structure holding register set to initialize
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*/
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static void
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gl846_init_registers (Genesys_Device * dev)
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{
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DBG_HELPER(dbg);
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dev->reg.clear();
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SETREG (0x01,0x60);
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SETREG (0x02,0x38);
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SETREG (0x03,0x03);
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SETREG (0x04,0x22);
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SETREG (0x05,0x60);
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SETREG (0x06,0x10);
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SETREG (0x08,0x60);
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SETREG (0x09,0x00);
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SETREG (0x0a,0x00);
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SETREG (0x0b,0x8b);
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SETREG (0x0c,0x00);
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SETREG (0x0d,0x00);
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SETREG (0x10,0x00);
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SETREG (0x11,0x00);
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SETREG (0x12,0x00);
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SETREG (0x13,0x00);
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SETREG (0x14,0x00);
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SETREG (0x15,0x00);
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SETREG (0x16,0xbb);
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SETREG (0x17,0x13);
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SETREG (0x18,0x10);
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SETREG (0x19,0x2a);
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SETREG (0x1a,0x34);
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SETREG (0x1b,0x00);
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SETREG (0x1c,0x20);
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SETREG (0x1d,0x06);
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SETREG (0x1e,0xf0);
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SETREG (0x1f,0x01);
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SETREG (0x20,0x03);
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SETREG (0x21,0x10);
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SETREG (0x22,0x60);
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SETREG (0x23,0x60);
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SETREG (0x24,0x60);
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SETREG (0x25,0x00);
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SETREG (0x26,0x00);
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SETREG (0x27,0x00);
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SETREG (0x2c,0x00);
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SETREG (0x2d,0x00);
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SETREG (0x2e,0x80);
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SETREG (0x2f,0x80);
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SETREG (0x30,0x00);
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SETREG (0x31,0x00);
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SETREG (0x32,0x00);
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SETREG (0x33,0x00);
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SETREG (0x34,0x1f);
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SETREG (0x35,0x00);
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SETREG (0x36,0x40);
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SETREG (0x37,0x00);
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SETREG (0x38,0x2a);
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SETREG (0x39,0xf8);
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SETREG (0x3d,0x00);
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SETREG (0x3e,0x00);
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SETREG (0x3f,0x01);
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SETREG (0x52,0x02);
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SETREG (0x53,0x04);
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SETREG (0x54,0x06);
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SETREG (0x55,0x08);
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SETREG (0x56,0x0a);
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SETREG (0x57,0x00);
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SETREG (0x58,0x59);
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SETREG (0x59,0x31);
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SETREG (0x5a,0x40);
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SETREG (0x5e,0x1f);
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SETREG (0x5f,0x01);
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SETREG (0x60,0x00);
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SETREG (0x61,0x00);
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SETREG (0x62,0x00);
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SETREG (0x63,0x00);
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SETREG (0x64,0x00);
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SETREG (0x65,0x00);
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SETREG (0x67,0x7f);
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SETREG (0x68,0x7f);
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SETREG (0x69,0x01);
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SETREG (0x6a,0x01);
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SETREG (0x70,0x01);
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SETREG (0x71,0x00);
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SETREG (0x72,0x02);
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SETREG (0x73,0x01);
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SETREG (0x74,0x00);
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SETREG (0x75,0x00);
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SETREG (0x76,0x00);
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SETREG (0x77,0x00);
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SETREG (0x78,0x00);
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SETREG (0x79,0x3f);
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SETREG (0x7a,0x00);
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SETREG (0x7b,0x09);
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SETREG (0x7c,0x99);
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SETREG (0x7d,0x20);
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SETREG (0x7f,0x05);
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SETREG (0x80,0x4f);
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SETREG (0x87,0x02);
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SETREG (0x94,0xff);
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SETREG (0x9d,0x04);
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SETREG (0x9e,0x00);
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SETREG (0xa1,0xe0);
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SETREG (0xa2,0x1f);
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SETREG (0xab,0xc0);
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SETREG (0xbb,0x00);
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SETREG (0xbc,0x0f);
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SETREG (0xdb,0xff);
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SETREG (0xfe,0x08);
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SETREG (0xff,0x02);
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SETREG (0x98,0x20);
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SETREG (0x99,0x00);
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SETREG (0x9a,0x90);
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SETREG (0x9b,0x00);
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SETREG (0xf8,0x05);
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const auto& sensor = sanei_genesys_find_sensor_any(dev);
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sanei_genesys_set_dpihw(dev->reg, sensor, sensor.optical_res);
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/* initalize calibration reg */
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dev->calib_reg = dev->reg;
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}
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/**@brief send slope table for motor movement
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* Send slope_table in machine byte order
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* @param dev device to send slope table
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* @param table_nr index of the slope table in ASIC memory
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* Must be in the [0-4] range.
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* @param slope_table pointer to 16 bit values array of the slope table
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* @param steps number of elements in the slope table
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*/
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static void gl846_send_slope_table(Genesys_Device* dev, int table_nr,
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const std::vector<uint16_t>& slope_table,
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int steps)
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{
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DBG_HELPER_ARGS(dbg, "table_nr = %d, steps = %d", table_nr, steps);
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int i;
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char msg[10000];
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/* sanity check */
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if(table_nr<0 || table_nr>4)
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{
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throw SaneException("invalid table number %d", table_nr);
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}
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std::vector<uint8_t> table(steps * 2);
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for (i = 0; i < steps; i++)
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{
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table[i * 2] = slope_table[i] & 0xff;
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table[i * 2 + 1] = slope_table[i] >> 8;
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}
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if (DBG_LEVEL >= DBG_io)
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{
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sprintf (msg, "write slope %d (%d)=", table_nr, steps);
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for (i = 0; i < steps; i++)
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{
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sprintf (msg+strlen(msg), "%d", slope_table[i]);
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}
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DBG (DBG_io, "%s: %s\n", __func__, msg);
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}
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// slope table addresses are fixed
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sanei_genesys_write_ahb(dev, 0x10000000 + 0x4000 * table_nr, steps * 2, table.data());
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}
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/**
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* Set register values of Analog Device type frontend
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* */
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static void gl846_set_adi_fe(Genesys_Device* dev, uint8_t set)
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{
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DBG_HELPER(dbg);
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int i;
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uint8_t val8;
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// wait for FE to be ready
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sanei_genesys_get_status(dev, &val8);
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while (val8 & REG41_FEBUSY)
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{
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sanei_genesys_sleep_ms(10);
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sanei_genesys_get_status(dev, &val8);
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};
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if (set == AFE_INIT)
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{
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DBG (DBG_proc, "%s(): setting DAC %u\n", __func__, dev->model->dac_type);
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dev->frontend = dev->frontend_initial;
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}
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// write them to analog frontend
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sanei_genesys_fe_write_data(dev, 0x00, dev->frontend.regs.get_value(0x00));
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sanei_genesys_fe_write_data(dev, 0x01, dev->frontend.regs.get_value(0x01));
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for (i = 0; i < 3; i++) {
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sanei_genesys_fe_write_data(dev, 0x02 + i, dev->frontend.get_gain(i));
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}
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for (i = 0; i < 3; i++) {
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sanei_genesys_fe_write_data(dev, 0x05 + i, dev->frontend.get_offset(i));
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}
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}
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static void gl846_homsnr_gpio(Genesys_Device* dev)
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{
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DBG_HELPER(dbg);
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uint8_t val = dev->read_register(REG6C);
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val |= 0x41;
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dev->write_register(REG6C, val);
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}
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// Set values of analog frontend
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static void gl846_set_fe(Genesys_Device* dev, const Genesys_Sensor& sensor, uint8_t set)
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{
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DBG_HELPER_ARGS(dbg, "%s", set == AFE_INIT ? "init" :
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set == AFE_SET ? "set" :
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set == AFE_POWER_SAVE ? "powersave" : "huh?");
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(void) sensor;
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/* route to specific analog frontend setup */
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uint8_t frontend_type = dev->reg.find_reg(0x04).value & REG04_FESET;
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switch (frontend_type) {
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case 0x02: /* ADI FE */
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gl846_set_adi_fe(dev, set);
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break;
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default:
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throw SaneException("unsupported frontend type %d", frontend_type);
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}
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}
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// @brief set up motor related register for scan
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static void gl846_init_motor_regs_scan(Genesys_Device* dev,
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const Genesys_Sensor& sensor,
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Genesys_Register_Set* reg,
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unsigned int scan_exposure_time,
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float scan_yres,
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int scan_step_type,
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unsigned int scan_lines,
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unsigned int scan_dummy,
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unsigned int feed_steps,
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unsigned int flags)
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{
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DBG_HELPER_ARGS(dbg, "scan_exposure_time=%d, scan_yres=%g, scan_step_type=%d, scan_lines=%d, "
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"scan_dummy=%d, feed_steps=%d, flags=%x",
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scan_exposure_time, scan_yres, scan_step_type, scan_lines, scan_dummy,
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feed_steps, flags);
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int use_fast_fed;
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unsigned int fast_dpi;
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std::vector<uint16_t> scan_table;
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std::vector<uint16_t> fast_table;
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int scan_steps, fast_steps, factor;
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unsigned int feedl, dist;
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GenesysRegister *r;
|
|
uint32_t z1, z2;
|
|
unsigned int min_restep = 0x20;
|
|
uint8_t val;
|
|
int fast_step_type;
|
|
unsigned int ccdlmt,tgtime;
|
|
|
|
/* get step multiplier */
|
|
factor = gl846_get_step_multiplier (reg);
|
|
|
|
use_fast_fed=0;
|
|
/* no fast fed since feed works well */
|
|
if(dev->settings.yres==4444 && feed_steps>100
|
|
&& ((flags & MOTOR_FLAG_FEED)==0))
|
|
{
|
|
use_fast_fed=1;
|
|
}
|
|
DBG (DBG_io, "%s: use_fast_fed=%d\n", __func__, use_fast_fed);
|
|
|
|
reg->set24(REG_LINCNT, scan_lines);
|
|
DBG (DBG_io, "%s: lincnt=%d\n", __func__, scan_lines);
|
|
|
|
/* compute register 02 value */
|
|
r = sanei_genesys_get_address (reg, REG02);
|
|
r->value = 0x00;
|
|
sanei_genesys_set_motor_power(*reg, true);
|
|
|
|
if (use_fast_fed)
|
|
r->value |= REG02_FASTFED;
|
|
else
|
|
r->value &= ~REG02_FASTFED;
|
|
|
|
if (flags & MOTOR_FLAG_AUTO_GO_HOME)
|
|
r->value |= REG02_AGOHOME | REG02_NOTHOME;
|
|
|
|
if ((flags & MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE)
|
|
||(scan_yres>=sensor.optical_res))
|
|
{
|
|
r->value |= REG02_ACDCDIS;
|
|
}
|
|
|
|
/* scan and backtracking slope table */
|
|
sanei_genesys_slope_table(scan_table,
|
|
&scan_steps,
|
|
scan_yres,
|
|
scan_exposure_time,
|
|
dev->motor.base_ydpi,
|
|
scan_step_type,
|
|
factor,
|
|
dev->model->motor_type,
|
|
gl846_motor_profiles);
|
|
gl846_send_slope_table(dev, SCAN_TABLE, scan_table, scan_steps * factor);
|
|
gl846_send_slope_table(dev, BACKTRACK_TABLE, scan_table, scan_steps * factor);
|
|
|
|
/* fast table */
|
|
fast_dpi=sanei_genesys_get_lowest_ydpi(dev);
|
|
fast_step_type=scan_step_type;
|
|
if(scan_step_type>=2)
|
|
{
|
|
fast_step_type=2;
|
|
}
|
|
|
|
sanei_genesys_slope_table(fast_table,
|
|
&fast_steps,
|
|
fast_dpi,
|
|
scan_exposure_time,
|
|
dev->motor.base_ydpi,
|
|
fast_step_type,
|
|
factor,
|
|
dev->model->motor_type,
|
|
gl846_motor_profiles);
|
|
|
|
/* manual override of high start value */
|
|
fast_table[0]=fast_table[1];
|
|
|
|
gl846_send_slope_table(dev, STOP_TABLE, fast_table, fast_steps * factor);
|
|
gl846_send_slope_table(dev, FAST_TABLE, fast_table, fast_steps * factor);
|
|
gl846_send_slope_table(dev, HOME_TABLE, fast_table, fast_steps * factor);
|
|
|
|
/* correct move distance by acceleration and deceleration amounts */
|
|
feedl=feed_steps;
|
|
if (use_fast_fed)
|
|
{
|
|
feedl<<=fast_step_type;
|
|
dist=(scan_steps+2*fast_steps)*factor;
|
|
/* TODO read and decode REGAB */
|
|
r = sanei_genesys_get_address (reg, 0x5e);
|
|
dist += (r->value & 31);
|
|
/* FEDCNT */
|
|
r = sanei_genesys_get_address (reg, REG_FEDCNT);
|
|
dist += r->value;
|
|
}
|
|
else
|
|
{
|
|
feedl<<=scan_step_type;
|
|
dist=scan_steps*factor;
|
|
if (flags & MOTOR_FLAG_FEED)
|
|
dist *=2;
|
|
}
|
|
DBG (DBG_io2, "%s: scan steps=%d\n", __func__, scan_steps);
|
|
DBG (DBG_io2, "%s: acceleration distance=%d\n", __func__, dist);
|
|
|
|
/* check for overflow */
|
|
if (dist < feedl) {
|
|
feedl -= dist;
|
|
} else {
|
|
feedl = 0;
|
|
}
|
|
|
|
reg->set24(REG_FEEDL, feedl);
|
|
DBG (DBG_io ,"%s: feedl=%d\n",__func__,feedl);
|
|
|
|
r = sanei_genesys_get_address (reg, REG0C);
|
|
ccdlmt=(r->value & REG0C_CCDLMT)+1;
|
|
|
|
r = sanei_genesys_get_address (reg, REG1C);
|
|
tgtime=1<<(r->value & REG1C_TGTIME);
|
|
|
|
/* hi res motor speed GPIO */
|
|
/*
|
|
uint8_t effective = dev->read_register(REG6C);
|
|
*/
|
|
|
|
/* if quarter step, bipolar Vref2 */
|
|
/* XXX STEF XXX GPIO
|
|
if (scan_step_type > 1)
|
|
{
|
|
if (scan_step_type < 3)
|
|
{
|
|
val = effective & ~REG6C_GPIO13;
|
|
}
|
|
else
|
|
{
|
|
val = effective | REG6C_GPIO13;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
val = effective;
|
|
}
|
|
dev->write_register(REG6C, val);
|
|
*/
|
|
|
|
/* effective scan */
|
|
/*
|
|
effective = dev->read_register(REG6C);
|
|
val = effective | REG6C_GPIO10;
|
|
dev->write_register(REG6C, val);
|
|
*/
|
|
|
|
if(dev->model->gpo_type==GPO_IMG101)
|
|
{
|
|
if (scan_yres == sensor.get_register_hwdpi(scan_yres)) {
|
|
val=1;
|
|
}
|
|
else
|
|
{
|
|
val=0;
|
|
}
|
|
dev->write_register(REG7E, val);
|
|
}
|
|
|
|
min_restep=scan_steps/2-1;
|
|
if (min_restep < 1)
|
|
min_restep = 1;
|
|
r = sanei_genesys_get_address (reg, REG_FWDSTEP);
|
|
r->value = min_restep;
|
|
r = sanei_genesys_get_address (reg, REG_BWDSTEP);
|
|
r->value = min_restep;
|
|
|
|
sanei_genesys_calculate_zmod(use_fast_fed,
|
|
scan_exposure_time*ccdlmt*tgtime,
|
|
scan_table,
|
|
scan_steps*factor,
|
|
feedl,
|
|
min_restep*factor,
|
|
&z1,
|
|
&z2);
|
|
|
|
DBG(DBG_info, "%s: z1 = %d\n", __func__, z1);
|
|
reg->set24(REG60, z1 | (scan_step_type << (16 + REG60S_STEPSEL)));
|
|
|
|
DBG(DBG_info, "%s: z2 = %d\n", __func__, z2);
|
|
reg->set24(REG63, z2 | (scan_step_type << (16 + REG63S_FSTPSEL)));
|
|
|
|
r = sanei_genesys_get_address (reg, 0x1e);
|
|
r->value &= 0xf0; /* 0 dummy lines */
|
|
r->value |= scan_dummy; /* dummy lines */
|
|
|
|
r = sanei_genesys_get_address (reg, REG67);
|
|
r->value = 0x7f;
|
|
|
|
r = sanei_genesys_get_address (reg, REG68);
|
|
r->value = 0x7f;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_STEPNO);
|
|
r->value = scan_steps;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_FASTNO);
|
|
r->value = scan_steps;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_FSHDEC);
|
|
r->value = scan_steps;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_FMOVNO);
|
|
r->value = fast_steps;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_FMOVDEC);
|
|
r->value = fast_steps;
|
|
}
|
|
|
|
|
|
/** @brief set up registers related to sensor
|
|
* Set up the following registers
|
|
0x01
|
|
0x03
|
|
0x10-0x015 R/G/B exposures
|
|
0x19 EXPDMY
|
|
0x2e BWHI
|
|
0x2f BWLO
|
|
0x04
|
|
0x87
|
|
0x05
|
|
0x2c,0x2d DPISET
|
|
0x30,0x31 STRPIXEL
|
|
0x32,0x33 ENDPIXEL
|
|
0x35,0x36,0x37 MAXWD [25:2] (>>2)
|
|
0x38,0x39 LPERIOD
|
|
0x34 DUMMY
|
|
*/
|
|
static void gl846_init_optical_regs_scan(Genesys_Device* dev, const Genesys_Sensor& sensor,
|
|
Genesys_Register_Set* reg, unsigned int exposure_time,
|
|
const ScanSession& session, unsigned int start)
|
|
{
|
|
DBG_HELPER_ARGS(dbg, "exposure_time=%d, start=%d", exposure_time, start);
|
|
unsigned int words_per_line;
|
|
unsigned int dpihw, segnb, factor;
|
|
GenesysRegister *r;
|
|
|
|
// resolution is divided according to ccd_pixels_per_system_pixel()
|
|
unsigned ccd_pixels_per_system_pixel = sensor.ccd_pixels_per_system_pixel();
|
|
DBG(DBG_io2, "%s: ccd_pixels_per_system_pixel=%d\n", __func__, ccd_pixels_per_system_pixel);
|
|
|
|
// to manage high resolution device while keeping good low resolution scanning speed,
|
|
// we make hardware dpi vary
|
|
dpihw = sensor.get_register_hwdpi(session.params.xres * ccd_pixels_per_system_pixel);
|
|
factor = sensor.optical_res/dpihw;
|
|
DBG(DBG_io2, "%s: dpihw=%d (factor=%d)\n", __func__, dpihw, factor);
|
|
|
|
// sensor parameters
|
|
const auto& sensor_profile = get_sensor_profile(sensor, dpihw);
|
|
gl846_setup_sensor(dev, sensor, reg, dpihw);
|
|
|
|
// start and end coordinate in optical dpi coordinates
|
|
unsigned startx = start / ccd_pixels_per_system_pixel + sensor.CCD_start_xoffset;
|
|
unsigned endx = startx + session.optical_pixels / ccd_pixels_per_system_pixel;
|
|
|
|
/* sensors are built from 600 dpi segments for LiDE 100/200
|
|
* and 1200 dpi for the 700F */
|
|
if (dev->model->flags & GENESYS_FLAG_SIS_SENSOR)
|
|
{
|
|
segnb=dpihw/600;
|
|
}
|
|
else
|
|
{
|
|
segnb=1;
|
|
}
|
|
|
|
// compute pixel coordinate in the given dpihw space, taking segments into account
|
|
startx /= factor*segnb;
|
|
endx /= factor*segnb;
|
|
dev->deseg.pixel_groups = endx - startx;
|
|
dev->deseg.conseq_pixel_dist_bytes = 0;
|
|
dev->skip=0;
|
|
|
|
/* in cas of multi-segments sensor, we have to add the witdh
|
|
* of the sensor crossed by the scan area */
|
|
if (dev->model->flags & GENESYS_FLAG_SIS_SENSOR && segnb > 1) {
|
|
dev->deseg.conseq_pixel_dist_bytes = sensor_profile.segment_count;
|
|
}
|
|
|
|
/* use a segcnt rounded to next even number */
|
|
endx += ((dev->deseg.conseq_pixel_dist_bytes + 1) & 0xfffe) * (segnb - 1);
|
|
unsigned used_pixels = endx - startx;
|
|
|
|
gl846_set_fe(dev, sensor, AFE_SET);
|
|
|
|
/* enable shading */
|
|
r = sanei_genesys_get_address (reg, REG01);
|
|
r->value &= ~REG01_SCAN;
|
|
r->value |= REG01_SHDAREA;
|
|
if ((session.params.flags & SCAN_FLAG_DISABLE_SHADING) ||
|
|
(dev->model->flags & GENESYS_FLAG_NO_CALIBRATION))
|
|
{
|
|
r->value &= ~REG01_DVDSET;
|
|
}
|
|
else
|
|
{
|
|
r->value |= REG01_DVDSET;
|
|
}
|
|
|
|
r = sanei_genesys_get_address (reg, REG03);
|
|
r->value &= ~REG03_AVEENB;
|
|
|
|
sanei_genesys_set_lamp_power(dev, sensor, *reg,
|
|
!(session.params.flags & SCAN_FLAG_DISABLE_LAMP));
|
|
|
|
/* BW threshold */
|
|
r = sanei_genesys_get_address (reg, 0x2e);
|
|
r->value = dev->settings.threshold;
|
|
r = sanei_genesys_get_address (reg, 0x2f);
|
|
r->value = dev->settings.threshold;
|
|
|
|
/* monochrome / color scan */
|
|
r = sanei_genesys_get_address (reg, REG04);
|
|
switch (session.params.depth)
|
|
{
|
|
case 1:
|
|
r->value &= ~REG04_BITSET;
|
|
r->value |= REG04_LINEART;
|
|
break;
|
|
case 8:
|
|
r->value &= ~(REG04_LINEART | REG04_BITSET);
|
|
break;
|
|
case 16:
|
|
r->value &= ~REG04_LINEART;
|
|
r->value |= REG04_BITSET;
|
|
break;
|
|
}
|
|
|
|
r->value &= ~(REG04_FILTER | REG04_AFEMOD);
|
|
if (session.params.channels == 1)
|
|
{
|
|
switch (session.params.color_filter)
|
|
{
|
|
case ColorFilter::RED:
|
|
r->value |= 0x24;
|
|
break;
|
|
case ColorFilter::BLUE:
|
|
r->value |= 0x2c;
|
|
break;
|
|
case ColorFilter::GREEN:
|
|
r->value |= 0x28;
|
|
break;
|
|
default:
|
|
break; // should not happen
|
|
}
|
|
} else {
|
|
r->value |= 0x20; // mono
|
|
}
|
|
|
|
sanei_genesys_set_dpihw(*reg, sensor, dpihw);
|
|
|
|
// enable gamma tables
|
|
r = sanei_genesys_get_address (reg, REG05);
|
|
if (session.params.flags & SCAN_FLAG_DISABLE_GAMMA) {
|
|
r->value &= ~REG05_GMMENB;
|
|
} else {
|
|
r->value |= REG05_GMMENB;
|
|
}
|
|
|
|
/* CIS scanners can do true gray by setting LEDADD */
|
|
/* we set up LEDADD only when asked */
|
|
if (dev->model->is_cis == SANE_TRUE)
|
|
{
|
|
r = sanei_genesys_get_address (reg, 0x87);
|
|
r->value &= ~REG87_LEDADD;
|
|
if (session.enable_ledadd) {
|
|
r->value |= REG87_LEDADD;
|
|
}
|
|
/* RGB weighting
|
|
r = sanei_genesys_get_address (reg, 0x01);
|
|
r->value &= ~REG01_TRUEGRAY;
|
|
if (session.enable_ledadd))
|
|
{
|
|
r->value |= REG01_TRUEGRAY;
|
|
}*/
|
|
}
|
|
|
|
/* words(16bit) before gamma, conversion to 8 bit or lineart*/
|
|
words_per_line = (used_pixels * session.params.xres * ccd_pixels_per_system_pixel) / sensor.get_register_hwdpi(session.params.xres * ccd_pixels_per_system_pixel);
|
|
dev->deseg.raw_channel_bytes = multiply_by_depth_ceil(words_per_line, session.params.depth);
|
|
dev->deseg.pixel_groups = multiply_by_depth_ceil(dev->deseg.pixel_groups, session.params.depth);
|
|
dev->deseg.conseq_pixel_dist_bytes = multiply_by_depth_ceil(dev->deseg.conseq_pixel_dist_bytes, session.params.depth);
|
|
|
|
dev->cur=0;
|
|
dev->segnb=segnb;
|
|
dev->line_interp = 0;
|
|
|
|
unsigned dpiset = session.params.xres * ccd_pixels_per_system_pixel;
|
|
reg->set16(REG_DPISET, dpiset);
|
|
DBG(DBG_io2, "%s: dpiset used=%d\n", __func__, dpiset);
|
|
|
|
reg->set16(REG_STRPIXEL,startx);
|
|
reg->set16(REG_ENDPIXEL,endx);
|
|
DBG (DBG_io2, "%s: startx=%d\n", __func__, startx);
|
|
DBG (DBG_io2, "%s: endx =%d\n", __func__, endx);
|
|
|
|
DBG (DBG_io2, "%s: used_pixels=%d\n", __func__, used_pixels);
|
|
DBG (DBG_io2, "%s: pixels =%d\n", __func__, session.optical_pixels);
|
|
DBG (DBG_io2, "%s: depth =%d\n", __func__, session.params.depth);
|
|
DBG (DBG_io2, "%s: dev->bpl =%lu\n", __func__, (unsigned long) dev->deseg.raw_channel_bytes);
|
|
DBG (DBG_io2, "%s: dev->len =%lu\n", __func__, (unsigned long) dev->deseg.pixel_groups);
|
|
DBG (DBG_io2, "%s: dev->dist =%lu\n", __func__, (unsigned long) dev->deseg.conseq_pixel_dist_bytes);
|
|
DBG (DBG_io2, "%s: dev->segnb =%lu\n", __func__, (unsigned long)dev->segnb);
|
|
|
|
dev->deseg.raw_line_bytes = dev->deseg.raw_channel_bytes * session.params.channels;
|
|
|
|
dev->oe_buffer.clear();
|
|
dev->oe_buffer.alloc(dev->deseg.raw_line_bytes);
|
|
|
|
/* MAXWD is expressed in 4 words unit */
|
|
reg->set24(REG_MAXWD, (dev->deseg.raw_line_bytes >> 2));
|
|
DBG(DBG_io2, "%s: words_per_line used=%d\n", __func__, dev->deseg.raw_line_bytes);
|
|
|
|
reg->set16(REG_LPERIOD, exposure_time);
|
|
DBG (DBG_io2, "%s: exposure_time used=%d\n", __func__, exposure_time);
|
|
|
|
r = sanei_genesys_get_address (reg, 0x34);
|
|
r->value = sensor.dummy_pixel;
|
|
}
|
|
|
|
static void gl846_compute_session(Genesys_Device* dev, ScanSession& s,
|
|
const Genesys_Sensor& sensor)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
compute_session(dev, s, sensor);
|
|
|
|
s.enable_ledadd = (s.params.channels == 1 && dev->model->is_cis && dev->settings.true_gray);
|
|
|
|
s.computed = true;
|
|
|
|
DBG(DBG_info, "%s ", __func__);
|
|
debug_dump(DBG_info, s);
|
|
}
|
|
|
|
// set up registers for an actual scan this function sets up the scanner to scan in normal or single
|
|
// line mode
|
|
static void gl846_init_scan_regs(Genesys_Device* dev, const Genesys_Sensor& sensor,
|
|
Genesys_Register_Set* reg, ScanSession& session)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
session.assert_computed();
|
|
|
|
int start;
|
|
int move;
|
|
unsigned int mflags; /**> motor flags */
|
|
int exposure_time;
|
|
|
|
int slope_dpi = 0;
|
|
int dummy = 0;
|
|
int scan_step_type = 1;
|
|
|
|
/* compute scan parameters values */
|
|
/* pixels are allways given at full optical resolution */
|
|
/* use detected left margin and fixed value */
|
|
/* start */
|
|
/* add x coordinates */
|
|
start = session.params.startx;
|
|
|
|
if (session.num_staggered_lines > 0) {
|
|
start |= 1;
|
|
}
|
|
|
|
dummy = 3-session.params.channels;
|
|
|
|
/* slope_dpi */
|
|
/* cis color scan is effectively a gray scan with 3 gray lines per color
|
|
line and a FILTER of 0 */
|
|
if (dev->model->is_cis) {
|
|
slope_dpi = session.params.yres * session.params.channels;
|
|
} else {
|
|
slope_dpi = session.params.yres;
|
|
}
|
|
|
|
slope_dpi = slope_dpi * (1 + dummy);
|
|
|
|
exposure_time = get_sensor_profile(sensor, session.params.xres).exposure_lperiod;
|
|
scan_step_type = sanei_genesys_compute_step_type(gl846_motor_profiles, dev->model->motor_type,
|
|
exposure_time);
|
|
|
|
DBG(DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time);
|
|
DBG(DBG_info, "%s : scan_step_type=%d\n", __func__, scan_step_type);
|
|
|
|
/*** optical parameters ***/
|
|
/* in case of dynamic lineart, we use an internal 8 bit gray scan
|
|
* to generate 1 lineart data */
|
|
if (session.params.flags & SCAN_FLAG_DYNAMIC_LINEART) {
|
|
session.params.depth = 8;
|
|
}
|
|
|
|
/* we enable true gray for cis scanners only, and just when doing
|
|
* scan since color calibration is OK for this mode
|
|
*/
|
|
gl846_init_optical_regs_scan(dev, sensor, reg, exposure_time, session, start);
|
|
|
|
/*** motor parameters ***/
|
|
|
|
/* add tl_y to base movement */
|
|
move = session.params.starty;
|
|
DBG(DBG_info, "%s: move=%d steps\n", __func__, move);
|
|
|
|
mflags = 0;
|
|
if (session.params.flags & SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE) {
|
|
mflags |= MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE;
|
|
}
|
|
if (session.params.flags & SCAN_FLAG_FEEDING) {
|
|
mflags |= MOTOR_FLAG_FEED;
|
|
}
|
|
|
|
gl846_init_motor_regs_scan(dev, sensor, reg, exposure_time, slope_dpi, scan_step_type,
|
|
dev->model->is_cis ? session.output_line_count * session.params.channels
|
|
: session.output_line_count,
|
|
dummy, move, mflags);
|
|
|
|
/*** prepares data reordering ***/
|
|
|
|
dev->read_buffer.clear();
|
|
dev->read_buffer.alloc(session.buffer_size_read);
|
|
|
|
dev->lines_buffer.clear();
|
|
dev->lines_buffer.alloc(session.buffer_size_lines);
|
|
|
|
dev->shrink_buffer.clear();
|
|
dev->shrink_buffer.alloc(session.buffer_size_shrink);
|
|
|
|
dev->out_buffer.clear();
|
|
dev->out_buffer.alloc(session.buffer_size_out);
|
|
|
|
dev->read_bytes_left_after_deseg = session.output_line_bytes * session.output_line_count;
|
|
|
|
DBG(DBG_info, "%s: desegmented bytes to read = %lu\n", __func__,
|
|
(u_long) dev->read_bytes_left_after_deseg);
|
|
dev->read_active = SANE_TRUE;
|
|
|
|
dev->session = session;
|
|
dev->current_setup.pixels = session.output_pixels;
|
|
dev->current_setup.lines = session.output_line_count;
|
|
dev->current_setup.exposure_time = exposure_time;
|
|
dev->current_setup.xres = session.params.xres;
|
|
dev->current_setup.ccd_size_divisor = session.ccd_size_divisor;
|
|
dev->current_setup.stagger = session.num_staggered_lines;
|
|
dev->current_setup.max_shift = session.max_color_shift_lines + session.num_staggered_lines;
|
|
|
|
dev->total_bytes_read = 0;
|
|
dev->total_bytes_to_read =
|
|
multiply_by_depth_ceil(session.params.get_requested_pixels() * session.params.lines,
|
|
session.params.depth) * session.params.channels;
|
|
|
|
DBG(DBG_info, "%s: total bytes to send = %lu\n", __func__, (u_long) dev->total_bytes_to_read);
|
|
}
|
|
|
|
static void
|
|
gl846_calculate_current_setup(Genesys_Device * dev, const Genesys_Sensor& sensor)
|
|
{
|
|
int start;
|
|
|
|
int exposure_time;
|
|
|
|
int slope_dpi;
|
|
int dummy = 0;
|
|
|
|
DBG(DBG_info, "%s ", __func__);
|
|
debug_dump(DBG_info, dev->settings);
|
|
|
|
/* start */
|
|
start = SANE_UNFIX (dev->model->x_offset);
|
|
start += dev->settings.tl_x;
|
|
start = (start * sensor.optical_res) / MM_PER_INCH;
|
|
|
|
ScanSession session;
|
|
session.params.xres = dev->settings.xres;
|
|
session.params.yres = dev->settings.yres;
|
|
session.params.startx = start; // not used
|
|
session.params.starty = 0; // not used
|
|
session.params.pixels = dev->settings.pixels;
|
|
session.params.requested_pixels = dev->settings.requested_pixels;
|
|
session.params.lines = dev->settings.lines;
|
|
session.params.depth = dev->settings.get_depth();
|
|
session.params.channels = dev->settings.get_channels();
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = dev->settings.scan_mode;
|
|
session.params.color_filter = dev->settings.color_filter;
|
|
session.params.flags = 0;
|
|
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
/* compute scan parameters values */
|
|
/* pixels are allways given at half or full CCD optical resolution */
|
|
/* use detected left margin and fixed value */
|
|
|
|
/* compute correct pixels number */
|
|
dummy = 3 - session.params.channels;
|
|
|
|
/* cis color scan is effectively a gray scan with 3 gray lines per color
|
|
line and a FILTER of 0 */
|
|
if (dev->model->is_cis) {
|
|
slope_dpi = session.params.yres * session.params.channels;
|
|
} else {
|
|
slope_dpi = session.params.yres;
|
|
}
|
|
|
|
slope_dpi = slope_dpi * (1 + dummy);
|
|
|
|
exposure_time = get_sensor_profile(sensor, session.params.xres).exposure_lperiod;
|
|
DBG(DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time);
|
|
|
|
dev->session = session;
|
|
dev->current_setup.pixels = session.output_pixels;
|
|
dev->current_setup.lines = session.output_line_count;
|
|
dev->current_setup.exposure_time = exposure_time;
|
|
dev->current_setup.xres = session.params.xres;
|
|
dev->current_setup.ccd_size_divisor = session.ccd_size_divisor;
|
|
dev->current_setup.stagger = session.num_staggered_lines;
|
|
dev->current_setup.max_shift = session.max_color_shift_lines + session.num_staggered_lines;
|
|
}
|
|
|
|
// for fast power saving methods only, like disabling certain amplifiers
|
|
static void gl846_save_power(Genesys_Device* dev, SANE_Bool enable)
|
|
{
|
|
(void) dev;
|
|
DBG_HELPER_ARGS(dbg, "enable = %d", enable);
|
|
}
|
|
|
|
static void gl846_set_powersaving(Genesys_Device* dev, int delay /* in minutes */)
|
|
{
|
|
(void) dev;
|
|
DBG_HELPER_ARGS(dbg, "delay = %d", delay);
|
|
}
|
|
|
|
static void gl846_start_action(Genesys_Device* dev)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
dev->write_register(0x0f, 0x01);
|
|
}
|
|
|
|
static void gl846_stop_action(Genesys_Device* dev)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
uint8_t val;
|
|
unsigned int loop;
|
|
|
|
// post scan gpio : without that HOMSNR is unreliable
|
|
gl846_homsnr_gpio(dev);
|
|
sanei_genesys_get_status(dev, &val);
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sanei_genesys_print_status (val);
|
|
}
|
|
|
|
uint8_t val40 = dev->read_register(REG40);
|
|
|
|
/* only stop action if needed */
|
|
if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG))
|
|
{
|
|
DBG(DBG_info, "%s: already stopped\n", __func__);
|
|
return;
|
|
}
|
|
|
|
/* ends scan */
|
|
val = dev->reg.get8(REG01);
|
|
val &= ~REG01_SCAN;
|
|
dev->reg.set8(REG01, val);
|
|
dev->write_register(REG01, val);
|
|
sanei_genesys_sleep_ms(100);
|
|
|
|
loop = 10;
|
|
while (loop > 0)
|
|
{
|
|
sanei_genesys_get_status(dev, &val);
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sanei_genesys_print_status (val);
|
|
}
|
|
val40 = dev->read_register(REG40);
|
|
|
|
/* if scanner is in command mode, we are done */
|
|
if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG)
|
|
&& !(val & REG41_MOTORENB))
|
|
{
|
|
return;
|
|
}
|
|
|
|
sanei_genesys_sleep_ms(100);
|
|
loop--;
|
|
}
|
|
|
|
throw SaneException(SANE_STATUS_IO_ERROR, "could not stop motor");
|
|
}
|
|
|
|
// Send the low-level scan command
|
|
static void gl846_begin_scan(Genesys_Device* dev, const Genesys_Sensor& sensor,
|
|
Genesys_Register_Set* reg, SANE_Bool start_motor)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
(void) sensor;
|
|
uint8_t val;
|
|
GenesysRegister *r;
|
|
|
|
/* XXX STEF XXX SCAN GPIO */
|
|
/*
|
|
val = dev->read_register(REG6C);
|
|
dev->write_register(REG6C, val);
|
|
*/
|
|
|
|
val = REG0D_CLRLNCNT;
|
|
dev->write_register(REG0D, val);
|
|
val = REG0D_CLRMCNT;
|
|
dev->write_register(REG0D, val);
|
|
|
|
val = dev->read_register(REG01);
|
|
val |= REG01_SCAN;
|
|
dev->write_register(REG01, val);
|
|
r = sanei_genesys_get_address (reg, REG01);
|
|
r->value = val;
|
|
|
|
if (start_motor) {
|
|
dev->write_register(REG0F, 1);
|
|
} else {
|
|
dev->write_register(REG0F, 0);
|
|
}
|
|
}
|
|
|
|
|
|
// Send the stop scan command
|
|
static void gl846_end_scan(Genesys_Device* dev, Genesys_Register_Set* reg, SANE_Bool check_stop)
|
|
{
|
|
(void) reg;
|
|
DBG_HELPER_ARGS(dbg, "check_stop = %d", check_stop);
|
|
|
|
if (dev->model->is_sheetfed != SANE_TRUE) {
|
|
gl846_stop_action(dev);
|
|
}
|
|
}
|
|
|
|
// Moves the slider to the home (top) postion slowly
|
|
static void gl846_slow_back_home(Genesys_Device* dev, SANE_Bool wait_until_home)
|
|
{
|
|
DBG_HELPER_ARGS(dbg, "wait_until_home = %d", wait_until_home);
|
|
Genesys_Register_Set local_reg;
|
|
GenesysRegister *r;
|
|
float resolution;
|
|
uint8_t val;
|
|
int loop = 0;
|
|
ScanColorMode scan_mode;
|
|
|
|
// post scan gpio : without that HOMSNR is unreliable
|
|
gl846_homsnr_gpio(dev);
|
|
|
|
// first read gives HOME_SENSOR true
|
|
sanei_genesys_get_status(dev, &val);
|
|
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sanei_genesys_print_status (val);
|
|
}
|
|
sanei_genesys_sleep_ms(100);
|
|
|
|
// second is reliable
|
|
sanei_genesys_get_status(dev, &val);
|
|
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sanei_genesys_print_status (val);
|
|
}
|
|
|
|
/* is sensor at home? */
|
|
if (val & HOMESNR)
|
|
{
|
|
DBG(DBG_info, "%s: already at home, completed\n", __func__);
|
|
dev->scanhead_position_in_steps = 0;
|
|
return;
|
|
}
|
|
|
|
local_reg = dev->reg;
|
|
|
|
resolution=sanei_genesys_get_lowest_ydpi(dev);
|
|
|
|
const auto& sensor = sanei_genesys_find_sensor_any(dev);
|
|
|
|
/* TODO add scan_mode to the API */
|
|
scan_mode= dev->settings.scan_mode;
|
|
dev->settings.scan_mode = ScanColorMode::LINEART;
|
|
|
|
ScanSession session;
|
|
session.params.xres = resolution;
|
|
session.params.yres = resolution;
|
|
session.params.startx = 100;
|
|
session.params.starty = 30000;
|
|
session.params.pixels = 100;
|
|
session.params.lines = 100;
|
|
session.params.depth = 8;
|
|
session.params.channels = 1;
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = ScanColorMode::GRAY;
|
|
session.params.color_filter = ColorFilter::RED;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, &local_reg, session);
|
|
|
|
dev->settings.scan_mode=scan_mode;
|
|
|
|
// clear scan and feed count
|
|
dev->write_register(REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT);
|
|
|
|
/* set up for reverse */
|
|
r = sanei_genesys_get_address(&local_reg, REG02);
|
|
r->value |= REG02_MTRREV;
|
|
|
|
dev->write_registers(local_reg);
|
|
|
|
try {
|
|
gl846_start_action(dev);
|
|
} catch (...) {
|
|
try {
|
|
gl846_stop_action(dev);
|
|
} catch (...) {}
|
|
// restore original registers
|
|
catch_all_exceptions(__func__, [&]()
|
|
{
|
|
dev->write_registers(dev->reg);
|
|
});
|
|
throw;
|
|
}
|
|
|
|
// post scan gpio : without that HOMSNR is unreliable
|
|
gl846_homsnr_gpio(dev);
|
|
|
|
if (wait_until_home)
|
|
{
|
|
while (loop < 300) /* do not wait longer then 30 seconds */
|
|
{
|
|
sanei_genesys_get_status(dev, &val);
|
|
|
|
if (val & HOMESNR) /* home sensor */
|
|
{
|
|
DBG(DBG_info, "%s: reached home position\n", __func__);
|
|
gl846_stop_action (dev);
|
|
dev->scanhead_position_in_steps = 0;
|
|
return;
|
|
}
|
|
sanei_genesys_sleep_ms(100);
|
|
++loop;
|
|
}
|
|
|
|
// when we come here then the scanner needed too much time for this, so we better stop
|
|
// the motor
|
|
catch_all_exceptions(__func__, [&](){ gl846_stop_action(dev); });
|
|
throw SaneException(SANE_STATUS_IO_ERROR, "timeout while waiting for scanhead to go home");
|
|
}
|
|
|
|
DBG(DBG_info, "%s: scanhead is still moving\n", __func__);
|
|
}
|
|
|
|
// Automatically set top-left edge of the scan area by scanning a 200x200 pixels area at 600 dpi
|
|
// from very top of scanner
|
|
static void gl846_search_start_position(Genesys_Device* dev)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
int size;
|
|
Genesys_Register_Set local_reg;
|
|
int steps;
|
|
|
|
int pixels = 600;
|
|
int dpi = 300;
|
|
|
|
local_reg = dev->reg;
|
|
|
|
/* sets for a 200 lines * 600 pixels */
|
|
/* normal scan with no shading */
|
|
|
|
// FIXME: the current approach of doing search only for one resolution does not work on scanners
|
|
// whith employ different sensors with potentially different settings.
|
|
const auto& sensor = sanei_genesys_find_sensor(dev, dpi, 1, ScanMethod::FLATBED);
|
|
|
|
ScanSession session;
|
|
session.params.xres = dpi;
|
|
session.params.yres = dpi;
|
|
session.params.startx = 0;
|
|
session.params.starty = 0; /*we should give a small offset here~60 steps */
|
|
session.params.pixels = 600;
|
|
session.params.lines = dev->model->search_lines;
|
|
session.params.depth = 8;
|
|
session.params.channels = 1;
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = ScanColorMode::GRAY;
|
|
session.params.color_filter = ColorFilter::GREEN;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, &local_reg, session);
|
|
|
|
// send to scanner
|
|
dev->write_registers(local_reg);
|
|
|
|
size = pixels * dev->model->search_lines;
|
|
|
|
std::vector<uint8_t> data(size);
|
|
|
|
gl846_begin_scan(dev, sensor, &local_reg, SANE_TRUE);
|
|
|
|
// waits for valid data
|
|
do {
|
|
sanei_genesys_test_buffer_empty(dev, &steps);
|
|
} while (steps);
|
|
|
|
// now we're on target, we can read data
|
|
sanei_genesys_read_data_from_scanner(dev, data.data(), size);
|
|
|
|
if (DBG_LEVEL >= DBG_data) {
|
|
sanei_genesys_write_pnm_file("gl846_search_position.pnm", data.data(), 8, 1, pixels,
|
|
dev->model->search_lines);
|
|
}
|
|
|
|
gl846_end_scan(dev, &local_reg, SANE_TRUE);
|
|
|
|
/* update regs to copy ASIC internal state */
|
|
dev->reg = local_reg;
|
|
|
|
// TODO: find out where sanei_genesys_search_reference_point stores information,
|
|
// and use that correctly
|
|
for (auto& sensor_update : sanei_genesys_find_sensors_all_for_write(dev, ScanMethod::FLATBED)) {
|
|
sanei_genesys_search_reference_point(dev, sensor_update, data.data(), 0, dpi, pixels,
|
|
dev->model->search_lines);
|
|
}
|
|
}
|
|
|
|
// sets up register for coarse gain calibration
|
|
// todo: check it for scanners using it
|
|
static void gl846_init_regs_for_coarse_calibration(Genesys_Device* dev,
|
|
const Genesys_Sensor& sensor,
|
|
Genesys_Register_Set& regs)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
|
|
ScanSession session;
|
|
session.params.xres = dev->settings.xres;
|
|
session.params.yres = dev->settings.yres;
|
|
session.params.startx = 0;
|
|
session.params.starty = 0;
|
|
session.params.pixels = sensor.optical_res / sensor.ccd_pixels_per_system_pixel();
|
|
session.params.lines = 20;
|
|
session.params.depth = 16;
|
|
session.params.channels = dev->settings.get_channels();
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = dev->settings.scan_mode;
|
|
session.params.color_filter = dev->settings.color_filter;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_SINGLE_LINE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, ®s, session);
|
|
|
|
DBG(DBG_info, "%s: optical sensor res: %d dpi, actual res: %d\n", __func__,
|
|
sensor.optical_res / sensor.ccd_pixels_per_system_pixel(), dev->settings.xres);
|
|
|
|
dev->write_registers(regs);
|
|
}
|
|
|
|
/** @brief moves the slider to steps at motor base dpi
|
|
* @param dev device to work on
|
|
* @param steps number of steps to move in base_dpi line count
|
|
* */
|
|
static void gl846_feed(Genesys_Device* dev, unsigned int steps)
|
|
{
|
|
DBG_HELPER_ARGS(dbg, "steps=%d\n", steps);
|
|
Genesys_Register_Set local_reg;
|
|
GenesysRegister *r;
|
|
float resolution;
|
|
uint8_t val;
|
|
|
|
/* prepare local registers */
|
|
local_reg = dev->reg;
|
|
|
|
resolution=sanei_genesys_get_lowest_ydpi(dev);
|
|
const auto& sensor = sanei_genesys_find_sensor(dev, resolution, 3, ScanMethod::FLATBED);
|
|
|
|
ScanSession session;
|
|
session.params.xres = resolution;
|
|
session.params.yres = resolution;
|
|
session.params.startx = 0;
|
|
session.params.starty = steps;
|
|
session.params.pixels = 100;
|
|
session.params.lines = 3;
|
|
session.params.depth = 8;
|
|
session.params.channels = 3;
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
|
|
session.params.color_filter = dev->settings.color_filter;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_FEEDING |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, &local_reg, session);
|
|
|
|
local_reg.set24(REG_EXPR, 0);
|
|
local_reg.set24(REG_EXPG, 0);
|
|
local_reg.set24(REG_EXPB, 0);
|
|
|
|
// clear scan and feed count
|
|
dev->write_register(REG0D, REG0D_CLRLNCNT);
|
|
dev->write_register(REG0D, REG0D_CLRMCNT);
|
|
|
|
/* set up for no scan */
|
|
r = sanei_genesys_get_address(&local_reg, REG01);
|
|
r->value &= ~REG01_SCAN;
|
|
|
|
// send registers
|
|
dev->write_registers(local_reg);
|
|
|
|
try {
|
|
gl846_start_action(dev);
|
|
} catch (...) {
|
|
try {
|
|
gl846_stop_action(dev);
|
|
} catch (...) {}
|
|
// restore original registers
|
|
catch_all_exceptions(__func__, [&]()
|
|
{
|
|
dev->write_registers(dev->reg);
|
|
});
|
|
throw;
|
|
}
|
|
|
|
// wait until feed count reaches the required value, but do not exceed 30s
|
|
do {
|
|
sanei_genesys_get_status(dev, &val);
|
|
} while (!(val & FEEDFSH));
|
|
|
|
// then stop scanning
|
|
gl846_stop_action(dev);
|
|
}
|
|
|
|
|
|
// init registers for shading calibration
|
|
static void gl846_init_regs_for_shading(Genesys_Device* dev, const Genesys_Sensor& sensor,
|
|
Genesys_Register_Set& regs)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
float move;
|
|
|
|
dev->calib_channels = 3;
|
|
|
|
/* initial calibration reg values */
|
|
regs = dev->reg;
|
|
|
|
dev->calib_resolution = sensor.get_register_hwdpi(dev->settings.xres);
|
|
dev->calib_total_bytes_to_read = 0;
|
|
dev->calib_lines = dev->model->shading_lines;
|
|
if(dev->calib_resolution==4800)
|
|
dev->calib_lines *= 2;
|
|
dev->calib_pixels = (sensor.sensor_pixels*dev->calib_resolution)/sensor.optical_res;
|
|
DBG(DBG_io, "%s: calib_lines = %d\n", __func__, (unsigned int)dev->calib_lines);
|
|
DBG(DBG_io, "%s: calib_pixels = %d\n", __func__, (unsigned int)dev->calib_pixels);
|
|
|
|
/* this is aworkaround insufficent distance for slope
|
|
* motor acceleration TODO special motor slope for shading */
|
|
move=1;
|
|
if(dev->calib_resolution<1200)
|
|
{
|
|
move=40;
|
|
}
|
|
|
|
ScanSession session;
|
|
session.params.xres = dev->calib_resolution;
|
|
session.params.yres = dev->calib_resolution;
|
|
session.params.startx = 0;
|
|
session.params.starty = move;
|
|
session.params.pixels = dev->calib_pixels;
|
|
session.params.lines = dev->calib_lines;
|
|
session.params.depth = 16;
|
|
session.params.channels = dev->calib_channels;
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
|
|
session.params.color_filter = dev->settings.color_filter;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, ®s, session);
|
|
|
|
dev->write_registers(regs);
|
|
|
|
/* we use GENESYS_FLAG_SHADING_REPARK */
|
|
dev->scanhead_position_in_steps = 0;
|
|
}
|
|
|
|
/** @brief set up registers for the actual scan
|
|
*/
|
|
static void gl846_init_regs_for_scan(Genesys_Device* dev, const Genesys_Sensor& sensor)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
int flags;
|
|
float move;
|
|
int move_dpi;
|
|
float start;
|
|
|
|
debug_dump(DBG_info, dev->settings);
|
|
|
|
/* steps to move to reach scanning area:
|
|
- first we move to physical start of scanning
|
|
either by a fixed steps amount from the black strip
|
|
or by a fixed amount from parking position,
|
|
minus the steps done during shading calibration
|
|
- then we move by the needed offset whitin physical
|
|
scanning area
|
|
|
|
assumption: steps are expressed at maximum motor resolution
|
|
|
|
we need:
|
|
SANE_Fixed y_offset;
|
|
SANE_Fixed y_size;
|
|
SANE_Fixed y_offset_calib;
|
|
mm_to_steps()=motor dpi / 2.54 / 10=motor dpi / MM_PER_INCH */
|
|
|
|
/* if scanner uses GENESYS_FLAG_SEARCH_START y_offset is
|
|
relative from origin, else, it is from parking position */
|
|
|
|
move_dpi = dev->motor.base_ydpi;
|
|
|
|
move = SANE_UNFIX (dev->model->y_offset);
|
|
move += dev->settings.tl_y;
|
|
move = (move * move_dpi) / MM_PER_INCH;
|
|
move -= dev->scanhead_position_in_steps;
|
|
DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
|
|
|
|
/* fast move to scan area */
|
|
/* we don't move fast the whole distance since it would involve
|
|
* computing acceleration/deceleration distance for scan
|
|
* resolution. So leave a remainder for it so scan makes the final
|
|
* move tuning */
|
|
if (dev->settings.get_channels() * dev->settings.yres >= 600 && move > 700)
|
|
{
|
|
gl846_feed(dev, move-500);
|
|
move=500;
|
|
}
|
|
|
|
DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
|
|
DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
|
|
|
|
/* start */
|
|
start = SANE_UNFIX (dev->model->x_offset);
|
|
start += dev->settings.tl_x;
|
|
start = (start * sensor.optical_res) / MM_PER_INCH;
|
|
|
|
flags = 0;
|
|
|
|
/* emulated lineart from gray data is required for now */
|
|
if(dev->settings.scan_mode == ScanColorMode::LINEART
|
|
&& dev->settings.dynamic_lineart)
|
|
{
|
|
flags |= SCAN_FLAG_DYNAMIC_LINEART;
|
|
}
|
|
|
|
/* backtracking isn't handled well, so don't enable it */
|
|
flags |= SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE;
|
|
|
|
ScanSession session;
|
|
session.params.xres = dev->settings.xres;
|
|
session.params.yres = dev->settings.yres;
|
|
session.params.startx = start;
|
|
session.params.starty = move;
|
|
session.params.pixels = dev->settings.pixels;
|
|
session.params.requested_pixels = dev->settings.requested_pixels;
|
|
session.params.lines = dev->settings.lines;
|
|
session.params.depth = dev->settings.get_depth();
|
|
session.params.channels = dev->settings.get_channels();
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = dev->settings.scan_mode;
|
|
session.params.color_filter = dev->settings.color_filter;
|
|
session.params.flags = flags;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, &dev->reg, session);
|
|
}
|
|
|
|
|
|
/**
|
|
* Send shading calibration data. The buffer is considered to always hold values
|
|
* for all the channels.
|
|
*/
|
|
static void gl846_send_shading_data(Genesys_Device* dev, const Genesys_Sensor& sensor,
|
|
uint8_t* data, int size)
|
|
{
|
|
DBG_HELPER_ARGS(dbg, "writing %d bytes of shading data", size);
|
|
uint32_t addr, length, i, x, factor, pixels;
|
|
uint32_t dpiset, dpihw, strpixel, endpixel;
|
|
uint32_t lines;
|
|
uint8_t val,*ptr,*src;
|
|
|
|
/* shading data is plit in 3 (up to 5 with IR) areas
|
|
write(0x10014000,0x00000dd8)
|
|
URB 23429 bulk_out len 3544 wrote 0x33 0x10 0x....
|
|
write(0x1003e000,0x00000dd8)
|
|
write(0x10068000,0x00000dd8)
|
|
*/
|
|
length = (uint32_t) (size / 3);
|
|
strpixel = dev->reg.get16(REG_STRPIXEL);
|
|
endpixel = dev->reg.get16(REG_ENDPIXEL);
|
|
|
|
/* compute deletion factor */
|
|
dpiset = dev->reg.get16(REG_DPISET);
|
|
DBG(DBG_io2, "%s: STRPIXEL=%d, ENDPIXEL=%d, PIXELS=%d, DPISET=%d\n", __func__, strpixel, endpixel,
|
|
endpixel-strpixel, dpiset);
|
|
dpihw = sensor.get_register_hwdpi(dpiset);
|
|
factor=dpihw/dpiset;
|
|
DBG(DBG_io2, "%s: factor=%d\n", __func__, factor);
|
|
|
|
if(DBG_LEVEL>=DBG_data)
|
|
{
|
|
dev->binary=fopen("binary.pnm","wb");
|
|
lines = dev->reg.get24(REG_LINCNT);
|
|
unsigned channels = dev->session.params.channels;
|
|
if(dev->binary!=NULL)
|
|
{
|
|
fprintf(dev->binary,"P5\n%d %d\n%d\n",(endpixel-strpixel)/factor*channels,lines/channels,255);
|
|
}
|
|
}
|
|
|
|
pixels=endpixel-strpixel;
|
|
|
|
/* since we're using SHDAREA, substract startx coordinate from shading */
|
|
strpixel-=((sensor.CCD_start_xoffset*600)/sensor.optical_res);
|
|
|
|
/* turn pixel value into bytes 2x16 bits words */
|
|
strpixel*=2*2;
|
|
pixels*=2*2;
|
|
|
|
std::vector<uint8_t> buffer(pixels, 0);
|
|
|
|
DBG(DBG_io2, "%s: using chunks of %d (0x%04x) bytes\n", __func__, pixels, pixels);
|
|
|
|
/* base addr of data has been written in reg D0-D4 in 4K word, so AHB address
|
|
* is 8192*reg value */
|
|
|
|
/* write actual color channel data */
|
|
for(i=0;i<3;i++)
|
|
{
|
|
/* build up actual shading data by copying the part from the full width one
|
|
* to the one corresponding to SHDAREA */
|
|
ptr = buffer.data();
|
|
|
|
/* iterate on both sensor segment */
|
|
for(x=0;x<pixels;x+=4*factor)
|
|
{
|
|
/* coefficient source */
|
|
src=(data+strpixel+i*length)+x;
|
|
|
|
/* coefficient copy */
|
|
ptr[0]=src[0];
|
|
ptr[1]=src[1];
|
|
ptr[2]=src[2];
|
|
ptr[3]=src[3];
|
|
|
|
/* next shading coefficient */
|
|
ptr+=4;
|
|
}
|
|
|
|
val = dev->read_register(0xd0+i);
|
|
addr = val * 8192 + 0x10000000;
|
|
sanei_genesys_write_ahb(dev, addr, pixels, buffer.data());
|
|
}
|
|
}
|
|
|
|
/** @brief calibrates led exposure
|
|
* Calibrate exposure by scanning a white area until the used exposure gives
|
|
* data white enough.
|
|
* @param dev device to calibrate
|
|
*/
|
|
static SensorExposure gl846_led_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
|
|
Genesys_Register_Set& regs)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
int num_pixels;
|
|
int total_size;
|
|
int used_res;
|
|
int i, j;
|
|
int val;
|
|
int channels, depth;
|
|
int avg[3], top[3], bottom[3];
|
|
int turn;
|
|
uint16_t exp[3];
|
|
float move;
|
|
SANE_Bool acceptable;
|
|
|
|
move = SANE_UNFIX (dev->model->y_offset_calib);
|
|
move = (move * (dev->motor.base_ydpi/4)) / MM_PER_INCH;
|
|
if(move>20)
|
|
{
|
|
gl846_feed(dev, move);
|
|
}
|
|
DBG(DBG_io, "%s: move=%f steps\n", __func__, move);
|
|
|
|
/* offset calibration is always done in color mode */
|
|
channels = 3;
|
|
depth=16;
|
|
used_res = sensor.get_register_hwdpi(dev->settings.xres);
|
|
const auto& sensor_profile = get_sensor_profile(sensor, used_res);
|
|
num_pixels = (sensor.sensor_pixels*used_res)/sensor.optical_res;
|
|
|
|
/* initial calibration reg values */
|
|
regs = dev->reg;
|
|
|
|
ScanSession session;
|
|
session.params.xres = used_res;
|
|
session.params.yres = used_res;
|
|
session.params.startx = 0;
|
|
session.params.starty = 0;
|
|
session.params.pixels = num_pixels;
|
|
session.params.lines = 1;
|
|
session.params.depth = depth;
|
|
session.params.channels = channels;
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
|
|
session.params.color_filter = dev->settings.color_filter;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_SINGLE_LINE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, ®s, session);
|
|
|
|
total_size = num_pixels * channels * (depth/8) * 1; /* colors * bytes_per_color * scan lines */
|
|
std::vector<uint8_t> line(total_size);
|
|
|
|
/* initial loop values and boundaries */
|
|
exp[0] = sensor_profile.exposure.red;
|
|
exp[1] = sensor_profile.exposure.green;
|
|
exp[2] = sensor_profile.exposure.blue;
|
|
|
|
bottom[0]=29000;
|
|
bottom[1]=29000;
|
|
bottom[2]=29000;
|
|
|
|
top[0]=41000;
|
|
top[1]=51000;
|
|
top[2]=51000;
|
|
|
|
turn = 0;
|
|
|
|
/* no move during led calibration */
|
|
sanei_genesys_set_motor_power(regs, false);
|
|
do
|
|
{
|
|
// set up exposure
|
|
regs.set16(REG_EXPR, exp[0]);
|
|
regs.set16(REG_EXPG, exp[1]);
|
|
regs.set16(REG_EXPB, exp[2]);
|
|
|
|
// write registers and scan data
|
|
dev->write_registers(regs);
|
|
|
|
DBG(DBG_info, "%s: starting line reading\n", __func__);
|
|
gl846_begin_scan(dev, sensor, ®s, SANE_TRUE);
|
|
sanei_genesys_read_data_from_scanner(dev, line.data(), total_size);
|
|
|
|
// stop scanning
|
|
gl846_stop_action(dev);
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
char fn[30];
|
|
snprintf(fn, 30, "gl846_led_%02d.pnm", turn);
|
|
sanei_genesys_write_pnm_file(fn, line.data(), depth, channels, num_pixels, 1);
|
|
}
|
|
|
|
/* compute average */
|
|
for (j = 0; j < channels; j++)
|
|
{
|
|
avg[j] = 0;
|
|
for (i = 0; i < num_pixels; i++)
|
|
{
|
|
if (dev->model->is_cis)
|
|
val =
|
|
line[i * 2 + j * 2 * num_pixels + 1] * 256 +
|
|
line[i * 2 + j * 2 * num_pixels];
|
|
else
|
|
val =
|
|
line[i * 2 * channels + 2 * j + 1] * 256 +
|
|
line[i * 2 * channels + 2 * j];
|
|
avg[j] += val;
|
|
}
|
|
|
|
avg[j] /= num_pixels;
|
|
}
|
|
|
|
DBG(DBG_info, "%s: average: %d,%d,%d\n", __func__, avg[0], avg[1], avg[2]);
|
|
|
|
/* check if exposure gives average within the boundaries */
|
|
acceptable = SANE_TRUE;
|
|
for(i=0;i<3;i++)
|
|
{
|
|
if(avg[i]<bottom[i])
|
|
{
|
|
exp[i]=(exp[i]*bottom[i])/avg[i];
|
|
acceptable = SANE_FALSE;
|
|
}
|
|
if(avg[i]>top[i])
|
|
{
|
|
exp[i]=(exp[i]*top[i])/avg[i];
|
|
acceptable = SANE_FALSE;
|
|
}
|
|
}
|
|
|
|
turn++;
|
|
}
|
|
while (!acceptable && turn < 100);
|
|
|
|
DBG(DBG_info, "%s: acceptable exposure: %d,%d,%d\n", __func__, exp[0], exp[1], exp[2]);
|
|
|
|
// set these values as final ones for scan
|
|
dev->reg.set16(REG_EXPR, exp[0]);
|
|
dev->reg.set16(REG_EXPG, exp[1]);
|
|
dev->reg.set16(REG_EXPB, exp[2]);
|
|
|
|
/* go back home */
|
|
if(move>20)
|
|
{
|
|
gl846_slow_back_home(dev, SANE_TRUE);
|
|
}
|
|
|
|
return { exp[0], exp[1], exp[2] };
|
|
}
|
|
|
|
/**
|
|
* set up GPIO/GPOE for idle state
|
|
*/
|
|
static void gl846_init_gpio(Genesys_Device* dev)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
int idx=0;
|
|
|
|
/* search GPIO profile */
|
|
while(gpios[idx].sensor_id!=0 && dev->model->gpo_type!=gpios[idx].sensor_id)
|
|
{
|
|
idx++;
|
|
}
|
|
if(gpios[idx].sensor_id==0)
|
|
{
|
|
throw SaneException("failed to find GPIO profile for sensor_id=%d", dev->model->ccd_type);
|
|
}
|
|
|
|
dev->write_register(REGA7, gpios[idx].ra7);
|
|
dev->write_register(REGA6, gpios[idx].ra6);
|
|
|
|
dev->write_register(REG6B, gpios[idx].r6b);
|
|
dev->write_register(REG6C, gpios[idx].r6c);
|
|
dev->write_register(REG6D, gpios[idx].r6d);
|
|
dev->write_register(REG6E, gpios[idx].r6e);
|
|
dev->write_register(REG6F, gpios[idx].r6f);
|
|
|
|
dev->write_register(REGA8, gpios[idx].ra8);
|
|
dev->write_register(REGA9, gpios[idx].ra9);
|
|
}
|
|
|
|
/**
|
|
* set memory layout by filling values in dedicated registers
|
|
*/
|
|
static void gl846_init_memory_layout(Genesys_Device* dev)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
int idx = 0, i;
|
|
uint8_t val;
|
|
|
|
/* point to per model memory layout */
|
|
idx = 0;
|
|
while(layouts[idx].model!=NULL && strcmp(dev->model->name,layouts[idx].model)!=0)
|
|
{
|
|
if(strcmp(dev->model->name,layouts[idx].model)!=0)
|
|
idx++;
|
|
}
|
|
if(layouts[idx].model==NULL)
|
|
{
|
|
throw SaneException("failed to find memory layout for model %s", dev->model->name);
|
|
}
|
|
|
|
/* CLKSET and DRAMSEL */
|
|
val = layouts[idx].dramsel;
|
|
dev->write_register(REG0B, val);
|
|
dev->reg.find_reg(0x0b).value = val;
|
|
|
|
/* prevent further writings by bulk write register */
|
|
dev->reg.remove_reg(0x0b);
|
|
|
|
/* setup base address for shading and scanned data. */
|
|
for(i=0;i<10;i++)
|
|
{
|
|
dev->write_register(0xe0+i, layouts[idx].rx[i]);
|
|
}
|
|
}
|
|
|
|
/* *
|
|
* initialize ASIC from power on condition
|
|
*/
|
|
static void gl846_boot(Genesys_Device* dev, SANE_Bool cold)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
uint8_t val;
|
|
|
|
// reset ASIC if cold boot
|
|
if (cold) {
|
|
dev->write_register(0x0e, 0x01);
|
|
dev->write_register(0x0e, 0x00);
|
|
}
|
|
|
|
if(dev->usb_mode == 1)
|
|
{
|
|
val = 0x14;
|
|
}
|
|
else
|
|
{
|
|
val = 0x11;
|
|
}
|
|
sanei_genesys_write_0x8c(dev, 0x0f, val);
|
|
|
|
// test CHKVER
|
|
val = dev->read_register(REG40);
|
|
if (val & REG40_CHKVER) {
|
|
val = dev->read_register(0x00);
|
|
DBG(DBG_info, "%s: reported version for genesys chip is 0x%02x\n", __func__, val);
|
|
}
|
|
|
|
/* Set default values for registers */
|
|
gl846_init_registers (dev);
|
|
|
|
// Write initial registers
|
|
dev->write_registers(dev->reg);
|
|
|
|
/* Enable DRAM by setting a rising edge on bit 3 of reg 0x0b */
|
|
val = dev->reg.find_reg(0x0b).value & REG0B_DRAMSEL;
|
|
val = (val | REG0B_ENBDRAM);
|
|
dev->write_register(REG0B, val);
|
|
dev->reg.find_reg(0x0b).value = val;
|
|
|
|
/* CIS_LINE */
|
|
if (dev->model->is_cis)
|
|
{
|
|
SETREG (0x08, REG08_CIS_LINE);
|
|
dev->write_register(0x08, dev->reg.find_reg(0x08).value);
|
|
}
|
|
|
|
// set up clocks
|
|
sanei_genesys_write_0x8c(dev, 0x10, 0x0e);
|
|
sanei_genesys_write_0x8c(dev, 0x13, 0x0e);
|
|
|
|
// setup gpio
|
|
gl846_init_gpio(dev);
|
|
|
|
// setup internal memory layout
|
|
gl846_init_memory_layout(dev);
|
|
|
|
SETREG (0xf8, 0x05);
|
|
dev->write_register(0xf8, dev->reg.find_reg(0xf8).value);
|
|
}
|
|
|
|
/**
|
|
* initialize backend and ASIC : registers, motor tables, and gamma tables
|
|
* then ensure scanner's head is at home
|
|
*/
|
|
static void gl846_init(Genesys_Device* dev)
|
|
{
|
|
DBG_INIT ();
|
|
DBG_HELPER(dbg);
|
|
|
|
sanei_genesys_asic_init(dev, 0);
|
|
}
|
|
|
|
static void gl846_update_hardware_sensors(Genesys_Scanner* s)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
/* do what is needed to get a new set of events, but try to not lose
|
|
any of them.
|
|
*/
|
|
uint8_t val;
|
|
uint8_t scan, file, email, copy;
|
|
switch(s->dev->model->gpo_type)
|
|
{
|
|
default:
|
|
scan=0x01;
|
|
file=0x02;
|
|
email=0x04;
|
|
copy=0x08;
|
|
}
|
|
val = s->dev->read_register(REG6D);
|
|
|
|
s->buttons[BUTTON_SCAN_SW].write((val & scan) == 0);
|
|
s->buttons[BUTTON_FILE_SW].write((val & file) == 0);
|
|
s->buttons[BUTTON_EMAIL_SW].write((val & email) == 0);
|
|
s->buttons[BUTTON_COPY_SW].write((val & copy) == 0);
|
|
}
|
|
|
|
/** @brief search for a full width black or white strip.
|
|
* This function searches for a black or white stripe across the scanning area.
|
|
* When searching backward, the searched area must completely be of the desired
|
|
* color since this area will be used for calibration which scans forward.
|
|
* @param dev scanner device
|
|
* @param forward SANE_TRUE if searching forward, SANE_FALSE if searching backward
|
|
* @param black SANE_TRUE if searching for a black strip, SANE_FALSE for a white strip
|
|
*/
|
|
static void gl846_search_strip(Genesys_Device* dev, const Genesys_Sensor& sensor, SANE_Bool forward,
|
|
SANE_Bool black)
|
|
{
|
|
DBG_HELPER_ARGS(dbg, "%s %s", black ? "black" : "white", forward ? "forward" : "reverse");
|
|
unsigned int pixels, lines, channels;
|
|
Genesys_Register_Set local_reg;
|
|
size_t size;
|
|
int steps, depth;
|
|
unsigned int pass, count, found, x, y;
|
|
char title[80];
|
|
GenesysRegister *r;
|
|
|
|
gl846_set_fe(dev, sensor, AFE_SET);
|
|
|
|
gl846_stop_action(dev);
|
|
|
|
// set up for a gray scan at lowest dpi
|
|
unsigned dpi = *std::min_element(dev->model->xdpi_values.begin(),
|
|
dev->model->xdpi_values.end());
|
|
channels = 1;
|
|
/* 10 MM */
|
|
/* lines = (10 * dpi) / MM_PER_INCH; */
|
|
/* shading calibation is done with dev->motor.base_ydpi */
|
|
lines = (dev->model->shading_lines * dpi) / dev->motor.base_ydpi;
|
|
depth = 8;
|
|
pixels = (sensor.sensor_pixels * dpi) / sensor.optical_res;
|
|
size = pixels * channels * lines * (depth / 8);
|
|
std::vector<uint8_t> data(size);
|
|
|
|
dev->scanhead_position_in_steps = 0;
|
|
|
|
local_reg = dev->reg;
|
|
|
|
ScanSession session;
|
|
session.params.xres = dpi;
|
|
session.params.yres = dpi;
|
|
session.params.startx = 0;
|
|
session.params.starty = 0;
|
|
session.params.pixels = pixels;
|
|
session.params.lines = lines;
|
|
session.params.depth = depth;
|
|
session.params.channels = channels;
|
|
session.params.scan_mode = ScanColorMode::GRAY;
|
|
session.params.color_filter = ColorFilter::RED;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, &local_reg, session);
|
|
|
|
/* set up for reverse or forward */
|
|
r = sanei_genesys_get_address (&local_reg, REG02);
|
|
if (forward) {
|
|
r->value &= ~REG02_MTRREV;
|
|
} else {
|
|
r->value |= REG02_MTRREV;
|
|
}
|
|
|
|
dev->write_registers(local_reg);
|
|
|
|
gl846_begin_scan(dev, sensor, &local_reg, SANE_TRUE);
|
|
|
|
// waits for valid data
|
|
do {
|
|
sanei_genesys_test_buffer_empty(dev, &steps);
|
|
} while (steps);
|
|
|
|
// now we're on target, we can read data
|
|
sanei_genesys_read_data_from_scanner(dev, data.data(), size);
|
|
|
|
gl846_stop_action(dev);
|
|
|
|
pass = 0;
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
sprintf(title, "gl846_search_strip_%s_%s%02d.pnm",
|
|
black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass);
|
|
sanei_genesys_write_pnm_file(title, data.data(), depth, channels, pixels, lines);
|
|
}
|
|
|
|
/* loop until strip is found or maximum pass number done */
|
|
found = 0;
|
|
while (pass < 20 && !found)
|
|
{
|
|
dev->write_registers(local_reg);
|
|
|
|
// now start scan
|
|
gl846_begin_scan(dev, sensor, &local_reg, SANE_TRUE);
|
|
|
|
// waits for valid data
|
|
do {
|
|
sanei_genesys_test_buffer_empty(dev, &steps);
|
|
} while (steps);
|
|
|
|
// now we're on target, we can read data
|
|
sanei_genesys_read_data_from_scanner(dev, data.data(), size);
|
|
|
|
gl846_stop_action(dev);
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
sprintf(title, "gl846_search_strip_%s_%s%02d.pnm",
|
|
black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass);
|
|
sanei_genesys_write_pnm_file(title, data.data(), depth, channels, pixels, lines);
|
|
}
|
|
|
|
/* search data to find black strip */
|
|
/* when searching forward, we only need one line of the searched color since we
|
|
* will scan forward. But when doing backward search, we need all the area of the
|
|
* same color */
|
|
if (forward)
|
|
{
|
|
for (y = 0; y < lines && !found; y++)
|
|
{
|
|
count = 0;
|
|
/* count of white/black pixels depending on the color searched */
|
|
for (x = 0; x < pixels; x++)
|
|
{
|
|
/* when searching for black, detect white pixels */
|
|
if (black && data[y * pixels + x] > 90)
|
|
{
|
|
count++;
|
|
}
|
|
/* when searching for white, detect black pixels */
|
|
if (!black && data[y * pixels + x] < 60)
|
|
{
|
|
count++;
|
|
}
|
|
}
|
|
|
|
/* at end of line, if count >= 3%, line is not fully of the desired color
|
|
* so we must go to next line of the buffer */
|
|
/* count*100/pixels < 3 */
|
|
if ((count * 100) / pixels < 3)
|
|
{
|
|
found = 1;
|
|
DBG(DBG_data, "%s: strip found forward during pass %d at line %d\n", __func__,
|
|
pass, y);
|
|
}
|
|
else
|
|
{
|
|
DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count,
|
|
(100 * count) / pixels);
|
|
}
|
|
}
|
|
}
|
|
else /* since calibration scans are done forward, we need the whole area
|
|
to be of the required color when searching backward */
|
|
{
|
|
count = 0;
|
|
for (y = 0; y < lines; y++)
|
|
{
|
|
/* count of white/black pixels depending on the color searched */
|
|
for (x = 0; x < pixels; x++)
|
|
{
|
|
/* when searching for black, detect white pixels */
|
|
if (black && data[y * pixels + x] > 90)
|
|
{
|
|
count++;
|
|
}
|
|
/* when searching for white, detect black pixels */
|
|
if (!black && data[y * pixels + x] < 60)
|
|
{
|
|
count++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* at end of area, if count >= 3%, area is not fully of the desired color
|
|
* so we must go to next buffer */
|
|
if ((count * 100) / (pixels * lines) < 3)
|
|
{
|
|
found = 1;
|
|
DBG(DBG_data, "%s: strip found backward during pass %d \n", __func__, pass);
|
|
}
|
|
else
|
|
{
|
|
DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count,
|
|
(100 * count) / pixels);
|
|
}
|
|
}
|
|
pass++;
|
|
}
|
|
|
|
if (found)
|
|
{
|
|
DBG(DBG_info, "%s: %s strip found\n", __func__, black ? "black" : "white");
|
|
}
|
|
else
|
|
{
|
|
throw SaneException(SANE_STATUS_UNSUPPORTED, "%s strip not found", black ? "black" : "white");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* average dark pixels of a 8 bits scan
|
|
*/
|
|
static int
|
|
dark_average (uint8_t * data, unsigned int pixels, unsigned int lines,
|
|
unsigned int channels, unsigned int black)
|
|
{
|
|
unsigned int i, j, k, average, count;
|
|
unsigned int avg[3];
|
|
uint8_t val;
|
|
|
|
/* computes average value on black margin */
|
|
for (k = 0; k < channels; k++)
|
|
{
|
|
avg[k] = 0;
|
|
count = 0;
|
|
for (i = 0; i < lines; i++)
|
|
{
|
|
for (j = 0; j < black; j++)
|
|
{
|
|
val = data[i * channels * pixels + j + k];
|
|
avg[k] += val;
|
|
count++;
|
|
}
|
|
}
|
|
if (count)
|
|
avg[k] /= count;
|
|
DBG(DBG_info, "%s: avg[%d] = %d\n", __func__, k, avg[k]);
|
|
}
|
|
average = 0;
|
|
for (i = 0; i < channels; i++)
|
|
average += avg[i];
|
|
average /= channels;
|
|
DBG(DBG_info, "%s: average = %d\n", __func__, average);
|
|
return average;
|
|
}
|
|
|
|
static void gl846_offset_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
|
|
Genesys_Register_Set& regs)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
unsigned int channels, bpp;
|
|
int pass = 0, avg, total_size;
|
|
int topavg, bottomavg, lines;
|
|
int top, bottom, black_pixels, pixels;
|
|
|
|
// no gain nor offset for AKM AFE
|
|
uint8_t reg04 = dev->read_register(REG04);
|
|
if ((reg04 & REG04_FESET) == 0x02)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* offset calibration is always done in color mode */
|
|
channels = 3;
|
|
dev->calib_pixels = sensor.sensor_pixels;
|
|
lines=1;
|
|
bpp=8;
|
|
pixels = (sensor.sensor_pixels * sensor.optical_res) / sensor.optical_res;
|
|
black_pixels = (sensor.black_pixels * sensor.optical_res) / sensor.optical_res;
|
|
DBG(DBG_io2, "%s: black_pixels=%d\n", __func__, black_pixels);
|
|
|
|
ScanSession session;
|
|
session.params.xres = sensor.optical_res;
|
|
session.params.yres = sensor.optical_res;
|
|
session.params.startx = 0;
|
|
session.params.starty = 0;
|
|
session.params.pixels = pixels;
|
|
session.params.lines = lines;
|
|
session.params.depth = bpp;
|
|
session.params.channels = channels;
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
|
|
session.params.color_filter = dev->settings.color_filter;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_SINGLE_LINE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
gl846_init_scan_regs(dev, sensor, ®s, session);
|
|
|
|
sanei_genesys_set_motor_power(regs, false);
|
|
|
|
/* allocate memory for scans */
|
|
total_size = pixels * channels * lines * (bpp/8); /* colors * bytes_per_color * scan lines */
|
|
|
|
std::vector<uint8_t> first_line(total_size);
|
|
std::vector<uint8_t> second_line(total_size);
|
|
|
|
/* init gain */
|
|
dev->frontend.set_gain(0, 0);
|
|
dev->frontend.set_gain(1, 0);
|
|
dev->frontend.set_gain(2, 0);
|
|
|
|
/* scan with no move */
|
|
bottom = 10;
|
|
dev->frontend.set_offset(0, bottom);
|
|
dev->frontend.set_offset(1, bottom);
|
|
dev->frontend.set_offset(2, bottom);
|
|
|
|
gl846_set_fe(dev, sensor, AFE_SET);
|
|
dev->write_registers(regs);
|
|
DBG(DBG_info, "%s: starting first line reading\n", __func__);
|
|
gl846_begin_scan(dev, sensor, ®s, SANE_TRUE);
|
|
sanei_genesys_read_data_from_scanner(dev, first_line.data(), total_size);
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
char fn[30];
|
|
snprintf(fn, 30, "gl846_offset%03d.pnm", bottom);
|
|
sanei_genesys_write_pnm_file(fn, first_line.data(), bpp, channels, pixels, lines);
|
|
}
|
|
|
|
bottomavg = dark_average(first_line.data(), pixels, lines, channels, black_pixels);
|
|
DBG(DBG_io2, "%s: bottom avg=%d\n", __func__, bottomavg);
|
|
|
|
/* now top value */
|
|
top = 255;
|
|
dev->frontend.set_offset(0, top);
|
|
dev->frontend.set_offset(1, top);
|
|
dev->frontend.set_offset(2, top);
|
|
gl846_set_fe(dev, sensor, AFE_SET);
|
|
dev->write_registers(regs);
|
|
DBG(DBG_info, "%s: starting second line reading\n", __func__);
|
|
gl846_begin_scan(dev, sensor, ®s, SANE_TRUE);
|
|
sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size);
|
|
|
|
topavg = dark_average(second_line.data(), pixels, lines, channels, black_pixels);
|
|
DBG(DBG_io2, "%s: top avg=%d\n", __func__, topavg);
|
|
|
|
/* loop until acceptable level */
|
|
while ((pass < 32) && (top - bottom > 1))
|
|
{
|
|
pass++;
|
|
|
|
/* settings for new scan */
|
|
dev->frontend.set_offset(0, (top + bottom) / 2);
|
|
dev->frontend.set_offset(1, (top + bottom) / 2);
|
|
dev->frontend.set_offset(2, (top + bottom) / 2);
|
|
|
|
// scan with no move
|
|
gl846_set_fe(dev, sensor, AFE_SET);
|
|
dev->write_registers(regs);
|
|
DBG(DBG_info, "%s: starting second line reading\n", __func__);
|
|
gl846_begin_scan(dev, sensor, ®s, SANE_TRUE);
|
|
sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size);
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
char fn[30];
|
|
snprintf(fn, 30, "gl846_offset%03d.pnm", dev->frontend.get_offset(1));
|
|
sanei_genesys_write_pnm_file(fn, second_line.data(), bpp, channels, pixels, lines);
|
|
}
|
|
|
|
avg = dark_average(second_line.data(), pixels, lines, channels, black_pixels);
|
|
DBG(DBG_info, "%s: avg=%d offset=%d\n", __func__, avg, dev->frontend.get_offset(1));
|
|
|
|
/* compute new boundaries */
|
|
if (topavg == avg)
|
|
{
|
|
topavg = avg;
|
|
top = dev->frontend.get_offset(1);
|
|
}
|
|
else
|
|
{
|
|
bottomavg = avg;
|
|
bottom = dev->frontend.get_offset(1);
|
|
}
|
|
}
|
|
DBG(DBG_info, "%s: offset=(%d,%d,%d)\n", __func__,
|
|
dev->frontend.get_offset(0),
|
|
dev->frontend.get_offset(1),
|
|
dev->frontend.get_offset(2));
|
|
}
|
|
|
|
static void gl846_coarse_gain_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
|
|
Genesys_Register_Set& regs, int dpi)
|
|
{
|
|
DBG_HELPER(dbg);
|
|
int pixels;
|
|
int total_size;
|
|
int i, j, channels;
|
|
int max[3];
|
|
float gain[3],coeff;
|
|
int val, code, lines;
|
|
int bpp;
|
|
|
|
DBG(DBG_proc, "%s: dpi = %d\n", __func__, dpi);
|
|
|
|
// no gain nor offset for AKM AFE
|
|
uint8_t reg04 = dev->read_register(REG04);
|
|
if ((reg04 & REG04_FESET) == 0x02)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* coarse gain calibration is always done in color mode */
|
|
channels = 3;
|
|
|
|
/* follow CKSEL */
|
|
if(dev->settings.xres<sensor.optical_res)
|
|
{
|
|
coeff=0.9;
|
|
}
|
|
else
|
|
{
|
|
coeff=1.0;
|
|
}
|
|
lines=10;
|
|
bpp=8;
|
|
pixels = (sensor.sensor_pixels * sensor.optical_res) / sensor.optical_res;
|
|
|
|
ScanSession session;
|
|
session.params.xres = sensor.optical_res;
|
|
session.params.yres = sensor.optical_res;
|
|
session.params.startx = 0;
|
|
session.params.starty = 0;
|
|
session.params.pixels = pixels;
|
|
session.params.lines = lines;
|
|
session.params.depth = bpp;
|
|
session.params.channels = channels;
|
|
session.params.scan_method = dev->settings.scan_method;
|
|
session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
|
|
session.params.color_filter = dev->settings.color_filter;
|
|
session.params.flags = SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_SINGLE_LINE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE;
|
|
gl846_compute_session(dev, session, sensor);
|
|
|
|
try {
|
|
gl846_init_scan_regs(dev, sensor, ®s, session);
|
|
} catch (...) {
|
|
catch_all_exceptions(__func__, [&](){ sanei_genesys_set_motor_power(regs, false); });
|
|
throw;
|
|
}
|
|
|
|
sanei_genesys_set_motor_power(regs, false);
|
|
|
|
dev->write_registers(regs);
|
|
|
|
total_size = pixels * channels * (16/bpp) * lines;
|
|
|
|
std::vector<uint8_t> line(total_size);
|
|
|
|
gl846_set_fe(dev, sensor, AFE_SET);
|
|
gl846_begin_scan(dev, sensor, ®s, SANE_TRUE);
|
|
sanei_genesys_read_data_from_scanner(dev, line.data(), total_size);
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
sanei_genesys_write_pnm_file("gl846_gain.pnm", line.data(), bpp, channels, pixels, lines);
|
|
|
|
/* average value on each channel */
|
|
for (j = 0; j < channels; j++)
|
|
{
|
|
max[j] = 0;
|
|
for (i = pixels/4; i < (pixels*3/4); i++)
|
|
{
|
|
if (dev->model->is_cis)
|
|
val = line[i + j * pixels];
|
|
else
|
|
val = line[i * channels + j];
|
|
|
|
max[j] += val;
|
|
}
|
|
max[j] = max[j] / (pixels/2);
|
|
|
|
gain[j] = ((float) sensor.gain_white_ref*coeff) / max[j];
|
|
|
|
/* turn logical gain value into gain code, checking for overflow */
|
|
code = 283 - 208 / gain[j];
|
|
if (code > 255)
|
|
code = 255;
|
|
else if (code < 0)
|
|
code = 0;
|
|
dev->frontend.set_gain(j, code);
|
|
|
|
DBG(DBG_proc, "%s: channel %d, max=%d, gain = %f, setting:%d\n", __func__, j, max[j], gain[j],
|
|
dev->frontend.get_gain(j));
|
|
}
|
|
|
|
if (dev->model->is_cis) {
|
|
uint8_t gain0 = dev->frontend.get_gain(0);
|
|
if (gain0 > dev->frontend.get_gain(1)) {
|
|
gain0 = dev->frontend.get_gain(1);
|
|
}
|
|
if (gain0 > dev->frontend.get_gain(2)) {
|
|
gain0 = dev->frontend.get_gain(2);
|
|
}
|
|
dev->frontend.set_gain(0, gain0);
|
|
dev->frontend.set_gain(1, gain0);
|
|
dev->frontend.set_gain(2, gain0);
|
|
}
|
|
|
|
gl846_stop_action(dev);
|
|
|
|
gl846_slow_back_home(dev, SANE_TRUE);
|
|
}
|
|
|
|
|
|
/** the gl846 command set */
|
|
Genesys_Command_Set gl846_cmd_set = {
|
|
"gl846-generic", /* the name of this set */
|
|
|
|
nullptr,
|
|
|
|
gl846_init,
|
|
NULL,
|
|
gl846_init_regs_for_coarse_calibration,
|
|
gl846_init_regs_for_shading,
|
|
gl846_init_regs_for_scan,
|
|
|
|
gl846_get_filter_bit,
|
|
gl846_get_lineart_bit,
|
|
gl846_get_bitset_bit,
|
|
gl846_get_gain4_bit,
|
|
gl846_get_fast_feed_bit,
|
|
gl846_test_buffer_empty_bit,
|
|
gl846_test_motor_flag_bit,
|
|
|
|
gl846_set_fe,
|
|
gl846_set_powersaving,
|
|
gl846_save_power,
|
|
|
|
gl846_begin_scan,
|
|
gl846_end_scan,
|
|
|
|
sanei_genesys_send_gamma_table,
|
|
|
|
gl846_search_start_position,
|
|
|
|
gl846_offset_calibration,
|
|
gl846_coarse_gain_calibration,
|
|
gl846_led_calibration,
|
|
|
|
NULL,
|
|
gl846_slow_back_home,
|
|
NULL,
|
|
|
|
NULL,
|
|
sanei_genesys_bulk_read_data,
|
|
|
|
gl846_update_hardware_sensors,
|
|
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
gl846_search_strip,
|
|
|
|
sanei_genesys_is_compatible_calibration,
|
|
NULL,
|
|
gl846_send_shading_data,
|
|
gl846_calculate_current_setup,
|
|
gl846_boot
|
|
};
|