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authorJörg Frings-Fürst <debian@jff-webhosting.net>2020-03-30 21:30:45 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2020-03-30 21:30:45 +0200
commitee770c2346eb37e0dcb8b6cf3eaacf3d8efd6bbc (patch)
tree58f05092be1a17a939e861f8cadcda1b6ca2ecef /backend/genesys/gl646.cpp
parent0da9e21872802cfc6e975b1ebaf9efb9e5934d84 (diff)
parentfef76e17ed4c607ea73b81279f9ef1d7121be900 (diff)
Merge branch 'release/experimental/1.0.29-1_experimental1'experimental/1.0.29-1_experimental1
Diffstat (limited to 'backend/genesys/gl646.cpp')
-rw-r--r--backend/genesys/gl646.cpp3436
1 files changed, 3436 insertions, 0 deletions
diff --git a/backend/genesys/gl646.cpp b/backend/genesys/gl646.cpp
new file mode 100644
index 0000000..04ee85e
--- /dev/null
+++ b/backend/genesys/gl646.cpp
@@ -0,0 +1,3436 @@
+/* sane - Scanner Access Now Easy.
+
+ Copyright (C) 2003 Oliver Rauch
+ Copyright (C) 2003, 2004 Henning Meier-Geinitz <henning@meier-geinitz.de>
+ Copyright (C) 2004 Gerhard Jaeger <gerhard@gjaeger.de>
+ Copyright (C) 2004-2013 Stéphane Voltz <stef.dev@free.fr>
+ Copyright (C) 2005-2009 Pierre Willenbrock <pierre@pirsoft.dnsalias.org>
+ Copyright (C) 2007 Luke <iceyfor@gmail.com>
+ Copyright (C) 2011 Alexey Osipov <simba@lerlan.ru> for HP2400 description
+ and tuning
+
+ This file is part of the SANE package.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice.
+*/
+
+#define DEBUG_DECLARE_ONLY
+
+#include "gl646.h"
+#include "gl646_registers.h"
+#include "test_settings.h"
+
+#include <vector>
+
+namespace genesys {
+namespace gl646 {
+
+namespace {
+constexpr unsigned CALIBRATION_LINES = 10;
+} // namespace
+
+static void gl646_send_slope_table(Genesys_Device* dev, int table_nr,
+ const std::vector<uint16_t>& slope_table,
+ int steps);
+
+/**
+ * reads value from gpio endpoint
+ */
+static void gl646_gpio_read(IUsbDevice& usb_dev, uint8_t* value)
+{
+ DBG_HELPER(dbg);
+ usb_dev.control_msg(REQUEST_TYPE_IN, REQUEST_REGISTER, GPIO_READ, INDEX, 1, value);
+}
+
+/**
+ * writes the given value to gpio endpoint
+ */
+static void gl646_gpio_write(IUsbDevice& usb_dev, uint8_t value)
+{
+ DBG_HELPER_ARGS(dbg, "(0x%02x)", value);
+ usb_dev.control_msg(REQUEST_TYPE_OUT, REQUEST_REGISTER, GPIO_WRITE, INDEX, 1, &value);
+}
+
+/**
+ * writes the given value to gpio output enable endpoint
+ */
+static void gl646_gpio_output_enable(IUsbDevice& usb_dev, uint8_t value)
+{
+ DBG_HELPER_ARGS(dbg, "(0x%02x)", value);
+ usb_dev.control_msg(REQUEST_TYPE_OUT, REQUEST_REGISTER, GPIO_OUTPUT_ENABLE, INDEX, 1, &value);
+}
+
+/**
+ * stop scanner's motor
+ * @param dev scanner's device
+ */
+static void gl646_stop_motor(Genesys_Device* dev)
+{
+ DBG_HELPER(dbg);
+ dev->interface->write_register(0x0f, 0x00);
+}
+
+/**
+ * find the closest match in mode tables for the given resolution and scan mode.
+ * @param sensor id of the sensor
+ * @param required required resolution
+ * @param color true is color mode
+ * @return the closest resolution for the sensor and mode
+ */
+static unsigned get_closest_resolution(SensorId sensor_id, int required, unsigned channels)
+{
+ unsigned best_res = 0;
+ unsigned best_diff = 9600;
+
+ for (const auto& sensor : *s_sensors) {
+ if (sensor_id != sensor.sensor_id)
+ continue;
+
+ // exit on perfect match
+ if (sensor.resolutions.matches(required) && sensor.matches_channel_count(channels)) {
+ DBG(DBG_info, "%s: match found for %d\n", __func__, required);
+ return required;
+ }
+
+ // computes distance and keep mode if it is closer than previous
+ if (sensor.matches_channel_count(channels)) {
+ for (auto res : sensor.resolutions.resolutions()) {
+ unsigned curr_diff = std::abs(static_cast<int>(res) - static_cast<int>(required));
+ if (curr_diff < best_diff) {
+ best_res = res;
+ best_diff = curr_diff;
+ }
+ }
+ }
+ }
+
+ DBG(DBG_info, "%s: closest match for %d is %d\n", __func__, required, best_res);
+ return best_res;
+}
+
+/**
+ * Returns the cksel values used by the required scan mode.
+ * @param sensor id of the sensor
+ * @param required required resolution
+ * @param color true is color mode
+ * @return cksel value for mode
+ */
+static int get_cksel(SensorId sensor_id, int required, unsigned channels)
+{
+ for (const auto& sensor : *s_sensors) {
+ // exit on perfect match
+ if (sensor.sensor_id == sensor_id && sensor.resolutions.matches(required) &&
+ sensor.matches_channel_count(channels))
+ {
+ unsigned cksel = sensor.ccd_pixels_per_system_pixel();
+ DBG(DBG_io, "%s: match found for %d (cksel=%d)\n", __func__, required, cksel);
+ return cksel;
+ }
+ }
+ DBG(DBG_error, "%s: failed to find match for %d dpi\n", __func__, required);
+ /* fail safe fallback */
+ return 1;
+}
+
+void CommandSetGl646::init_regs_for_scan_session(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* regs,
+ const ScanSession& session) const
+{
+ DBG_HELPER(dbg);
+ session.assert_computed();
+
+ debug_dump(DBG_info, sensor);
+
+ uint32_t move = session.params.starty;
+
+ int i, nb;
+ Motor_Master *motor = nullptr;
+ uint32_t z1, z2;
+ int feedl;
+
+
+ /* for the given resolution, search for master
+ * motor mode setting */
+ i = 0;
+ nb = sizeof (motor_master) / sizeof (Motor_Master);
+ while (i < nb)
+ {
+ if (dev->model->motor_id == motor_master[i].motor_id
+ && motor_master[i].dpi == session.params.yres
+ && motor_master[i].channels == session.params.channels)
+ {
+ motor = &motor_master[i];
+ }
+ i++;
+ }
+ if (motor == nullptr)
+ {
+ throw SaneException("unable to find settings for motor %d at %d dpi, color=%d",
+ static_cast<unsigned>(dev->model->motor_id),
+ session.params.yres, session.params.channels);
+ }
+
+ /* now we can search for the specific sensor settings */
+ i = 0;
+
+ // now apply values from settings to registers
+ regs->set16(REG_EXPR, sensor.exposure.red);
+ regs->set16(REG_EXPG, sensor.exposure.green);
+ regs->set16(REG_EXPB, sensor.exposure.blue);
+
+ for (const auto& reg : sensor.custom_regs) {
+ regs->set8(reg.address, reg.value);
+ }
+
+ /* now generate slope tables : we are not using generate_slope_table3 yet */
+ auto slope_table1 = create_slope_table(motor->slope1, motor->slope1.max_speed_w, StepType::FULL,
+ 1, 4, get_slope_table_max_size(AsicType::GL646));
+ auto slope_table2 = create_slope_table(motor->slope2, motor->slope2.max_speed_w, StepType::FULL,
+ 1, 4, get_slope_table_max_size(AsicType::GL646));
+
+ /* R01 */
+ /* now setup other registers for final scan (ie with shading enabled) */
+ /* watch dog + shading + scan enable */
+ regs->find_reg(0x01).value |= REG_0x01_DOGENB | REG_0x01_DVDSET | REG_0x01_SCAN;
+ if (dev->model->is_cis) {
+ regs->find_reg(0x01).value |= REG_0x01_CISSET;
+ } else {
+ regs->find_reg(0x01).value &= ~REG_0x01_CISSET;
+ }
+
+ /* if device has no calibration, don't enable shading correction */
+ if (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION)
+ {
+ regs->find_reg(0x01).value &= ~REG_0x01_DVDSET;
+ }
+
+ regs->find_reg(0x01).value &= ~REG_0x01_FASTMOD;
+ if (motor->fastmod) {
+ regs->find_reg(0x01).value |= REG_0x01_FASTMOD;
+ }
+
+ /* R02 */
+ /* allow moving when buffer full by default */
+ if (!dev->model->is_sheetfed) {
+ dev->reg.find_reg(0x02).value &= ~REG_0x02_ACDCDIS;
+ } else {
+ dev->reg.find_reg(0x02).value |= REG_0x02_ACDCDIS;
+ }
+
+ /* setup motor power and direction */
+ sanei_genesys_set_motor_power(*regs, true);
+
+ if (has_flag(session.params.flags, ScanFlag::REVERSE)) {
+ regs->find_reg(0x02).value |= REG_0x02_MTRREV;
+ } else {
+ regs->find_reg(0x02).value &= ~REG_0x02_MTRREV;
+ }
+
+ /* fastfed enabled (2 motor slope tables) */
+ if (motor->fastfed) {
+ regs->find_reg(0x02).value |= REG_0x02_FASTFED;
+ } else {
+ regs->find_reg(0x02).value &= ~REG_0x02_FASTFED;
+ }
+
+ /* step type */
+ regs->find_reg(0x02).value &= ~REG_0x02_STEPSEL;
+ switch (motor->steptype)
+ {
+ case StepType::FULL:
+ break;
+ case StepType::HALF:
+ regs->find_reg(0x02).value |= 1;
+ break;
+ case StepType::QUARTER:
+ regs->find_reg(0x02).value |= 2;
+ break;
+ default:
+ regs->find_reg(0x02).value |= 3;
+ break;
+ }
+
+ if (dev->model->is_sheetfed) {
+ regs->find_reg(0x02).value &= ~REG_0x02_AGOHOME;
+ } else {
+ regs->find_reg(0x02).value |= REG_0x02_AGOHOME;
+ }
+
+ /* R03 */
+ regs->find_reg(0x03).value &= ~REG_0x03_AVEENB;
+ // regs->find_reg(0x03).value |= REG_0x03_AVEENB;
+ regs->find_reg(0x03).value &= ~REG_0x03_LAMPDOG;
+
+ /* select XPA */
+ regs->find_reg(0x03).value &= ~REG_0x03_XPASEL;
+ if ((session.params.flags & ScanFlag::USE_XPA) != ScanFlag::NONE) {
+ regs->find_reg(0x03).value |= REG_0x03_XPASEL;
+ }
+ regs->state.is_xpa_on = (session.params.flags & ScanFlag::USE_XPA) != ScanFlag::NONE;
+
+ /* R04 */
+ /* monochrome / color scan */
+ switch (session.params.depth) {
+ case 8:
+ regs->find_reg(0x04).value &= ~(REG_0x04_LINEART | REG_0x04_BITSET);
+ break;
+ case 16:
+ regs->find_reg(0x04).value &= ~REG_0x04_LINEART;
+ regs->find_reg(0x04).value |= REG_0x04_BITSET;
+ break;
+ }
+
+ sanei_genesys_set_dpihw(*regs, sensor, sensor.optical_res);
+
+ /* gamma enable for scans */
+ if (dev->model->flags & GENESYS_FLAG_14BIT_GAMMA) {
+ regs->find_reg(0x05).value |= REG_0x05_GMM14BIT;
+ }
+
+ regs->find_reg(0x05).value &= ~REG_0x05_GMMENB;
+
+ /* true CIS gray if needed */
+ if (dev->model->is_cis && session.params.channels == 1 && dev->settings.true_gray) {
+ regs->find_reg(0x05).value |= REG_0x05_LEDADD;
+ } else {
+ regs->find_reg(0x05).value &= ~REG_0x05_LEDADD;
+ }
+
+ /* HP2400 1200dpi mode tuning */
+
+ if (dev->model->sensor_id == SensorId::CCD_HP2400) {
+ /* reset count of dummy lines to zero */
+ regs->find_reg(0x1e).value &= ~REG_0x1E_LINESEL;
+ if (session.params.xres >= 1200) {
+ /* there must be one dummy line */
+ regs->find_reg(0x1e).value |= 1 & REG_0x1E_LINESEL;
+
+ /* GPO12 need to be set to zero */
+ regs->find_reg(0x66).value &= ~0x20;
+ }
+ else
+ {
+ /* set GPO12 back to one */
+ regs->find_reg(0x66).value |= 0x20;
+ }
+ }
+
+ /* motor steps used */
+ unsigned forward_steps = motor->fwdbwd;
+ unsigned backward_steps = motor->fwdbwd;
+
+ // the steps count must be different by at most 128, otherwise it's impossible to construct
+ // a proper backtracking curve. We're using slightly lower limit to allow at least a minimum
+ // distance between accelerations (forward_steps, backward_steps)
+ if (slope_table1.steps_count > slope_table2.steps_count + 100) {
+ slope_table2.steps_count += slope_table1.steps_count - 100;
+ }
+ if (slope_table2.steps_count > slope_table1.steps_count + 100) {
+ slope_table1.steps_count += slope_table2.steps_count - 100;
+ }
+
+ if (slope_table1.steps_count >= slope_table2.steps_count) {
+ backward_steps += (slope_table1.steps_count - slope_table2.steps_count) * 2;
+ } else {
+ forward_steps += (slope_table2.steps_count - slope_table1.steps_count) * 2;
+ }
+
+ if (forward_steps > 255) {
+ if (backward_steps < (forward_steps - 255)) {
+ throw SaneException("Can't set backtracking parameters without skipping image");
+ }
+ backward_steps -= forward_steps - 255;
+ }
+ if (backward_steps > 255) {
+ if (forward_steps < (backward_steps - 255)) {
+ throw SaneException("Can't set backtracking parameters without skipping image");
+ }
+ forward_steps -= backward_steps - 255;
+ }
+
+ regs->find_reg(0x21).value = slope_table1.steps_count;
+ regs->find_reg(0x24).value = slope_table2.steps_count;
+ regs->find_reg(0x22).value = forward_steps;
+ regs->find_reg(0x23).value = backward_steps;
+
+ /* CIS scanners read one line per color channel
+ * since gray mode use 'add' we also read 3 channels even not in
+ * color mode */
+ if (dev->model->is_cis) {
+ regs->set24(REG_LINCNT, session.output_line_count * 3);
+ } else {
+ regs->set24(REG_LINCNT, session.output_line_count);
+ }
+
+ regs->set16(REG_STRPIXEL, session.pixel_startx);
+ regs->set16(REG_ENDPIXEL, session.pixel_endx);
+
+ regs->set24(REG_MAXWD, session.output_line_bytes);
+
+ regs->set16(REG_DPISET, session.output_resolution * session.ccd_size_divisor *
+ sensor.ccd_pixels_per_system_pixel());
+ regs->set16(REG_LPERIOD, sensor.exposure_lperiod);
+
+ /* move distance must be adjusted to take into account the extra lines
+ * read to reorder data */
+ feedl = move;
+
+ if (session.num_staggered_lines + session.max_color_shift_lines > 0 && feedl != 0) {
+ int feed_offset = ((session.max_color_shift_lines + session.num_staggered_lines) * dev->motor.optical_ydpi) /
+ motor->dpi;
+ if (feedl > feed_offset) {
+ feedl = feedl - feed_offset;
+ }
+ }
+
+ /* we assume all scans are done with 2 tables */
+ /*
+ feedl = feed_steps - fast_slope_steps*2 -
+ (slow_slope_steps >> scan_step_type); */
+ /* but head has moved due to shading calibration => dev->scanhead_position_primary */
+ if (feedl > 0)
+ {
+ DBG(DBG_info, "%s: initial move=%d\n", __func__, feedl);
+
+ /* TODO clean up this when I'll fully understand.
+ * for now, special casing each motor */
+ switch (dev->model->motor_id) {
+ case MotorId::MD_5345:
+ switch (motor->dpi) {
+ case 200:
+ feedl -= 70;
+ break;
+ case 300:
+ feedl -= 70;
+ break;
+ case 400:
+ feedl += 130;
+ break;
+ case 600:
+ feedl += 160;
+ break;
+ case 1200:
+ feedl += 160;
+ break;
+ case 2400:
+ feedl += 180;
+ break;
+ default:
+ break;
+ }
+ break;
+ case MotorId::HP2300:
+ switch (motor->dpi) {
+ case 75:
+ feedl -= 180;
+ break;
+ case 150:
+ feedl += 0;
+ break;
+ case 300:
+ feedl += 30;
+ break;
+ case 600:
+ feedl += 35;
+ break;
+ case 1200:
+ feedl += 45;
+ break;
+ default:
+ break;
+ }
+ break;
+ case MotorId::HP2400:
+ switch (motor->dpi) {
+ case 150:
+ feedl += 150;
+ break;
+ case 300:
+ feedl += 220;
+ break;
+ case 600:
+ feedl += 260;
+ break;
+ case 1200:
+ feedl += 280; /* 300 */
+ break;
+ case 50:
+ feedl += 0;
+ break;
+ case 100:
+ feedl += 100;
+ break;
+ default:
+ break;
+ }
+ break;
+
+ /* theorical value */
+ default: {
+ unsigned step_shift = static_cast<unsigned>(motor->steptype);
+
+ if (motor->fastfed)
+ {
+ feedl = feedl - 2 * slope_table2.steps_count -
+ (slope_table1.steps_count >> step_shift);
+ }
+ else
+ {
+ feedl = feedl - (slope_table1.steps_count >> step_shift);
+ }
+ break;
+ }
+ }
+ /* security */
+ if (feedl < 0)
+ feedl = 0;
+ }
+
+ DBG(DBG_info, "%s: final move=%d\n", __func__, feedl);
+ regs->set24(REG_FEEDL, feedl);
+
+ regs->find_reg(0x65).value = motor->mtrpwm;
+
+ sanei_genesys_calculate_zmod(regs->find_reg(0x02).value & REG_0x02_FASTFED,
+ sensor.exposure_lperiod,
+ slope_table1.table,
+ slope_table1.steps_count,
+ move, motor->fwdbwd, &z1, &z2);
+
+ /* no z1/z2 for sheetfed scanners */
+ if (dev->model->is_sheetfed) {
+ z1 = 0;
+ z2 = 0;
+ }
+ regs->set16(REG_Z1MOD, z1);
+ regs->set16(REG_Z2MOD, z2);
+ regs->find_reg(0x6b).value = slope_table2.steps_count;
+ regs->find_reg(0x6c).value =
+ (regs->find_reg(0x6c).value & REG_0x6C_TGTIME) | ((z1 >> 13) & 0x38) | ((z2 >> 16)
+ & 0x07);
+
+ write_control(dev, sensor, session.output_resolution);
+
+ // setup analog frontend
+ gl646_set_fe(dev, sensor, AFE_SET, session.output_resolution);
+
+ dev->read_buffer.clear();
+ dev->read_buffer.alloc(session.buffer_size_read);
+
+ build_image_pipeline(dev, session);
+
+ dev->read_active = true;
+
+ dev->session = session;
+
+ dev->total_bytes_read = 0;
+ dev->total_bytes_to_read = session.output_line_bytes_requested * session.params.lines;
+
+ /* select color filter based on settings */
+ regs->find_reg(0x04).value &= ~REG_0x04_FILTER;
+ if (session.params.channels == 1) {
+ switch (session.params.color_filter) {
+ case ColorFilter::RED:
+ regs->find_reg(0x04).value |= 0x04;
+ break;
+ case ColorFilter::GREEN:
+ regs->find_reg(0x04).value |= 0x08;
+ break;
+ case ColorFilter::BLUE:
+ regs->find_reg(0x04).value |= 0x0c;
+ break;
+ default:
+ break;
+ }
+ }
+
+ gl646_send_slope_table(dev, 0, slope_table1.table, regs->get8(0x21));
+ gl646_send_slope_table(dev, 1, slope_table2.table, regs->get8(0x6b));
+}
+
+
+/** copy sensor specific settings */
+/* *dev : device infos
+ *regs : regiters to be set
+ extended : do extended set up
+ ccd_size_divisor: set up for half ccd resolution
+ all registers 08-0B, 10-1D, 52-5E are set up. They shouldn't
+ appear anywhere else but in register init
+*/
+static void
+gl646_setup_sensor (Genesys_Device * dev, const Genesys_Sensor& sensor, Genesys_Register_Set * regs)
+{
+ (void) dev;
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ for (const auto& reg_setting : sensor.custom_base_regs) {
+ regs->set8(reg_setting.address, reg_setting.value);
+ }
+ // FIXME: all other drivers don't set exposure here
+ regs_set_exposure(AsicType::GL646, *regs, sensor.exposure);
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+}
+
+/**
+ * Set all registers to default values after init
+ * @param dev scannerr's device to set
+ */
+static void
+gl646_init_regs (Genesys_Device * dev)
+{
+ int addr;
+
+ DBG(DBG_proc, "%s\n", __func__);
+
+ dev->reg.clear();
+
+ for (addr = 1; addr <= 0x0b; addr++)
+ dev->reg.init_reg(addr, 0);
+ for (addr = 0x10; addr <= 0x29; addr++)
+ dev->reg.init_reg(addr, 0);
+ for (addr = 0x2c; addr <= 0x39; addr++)
+ dev->reg.init_reg(addr, 0);
+ for (addr = 0x3d; addr <= 0x3f; addr++)
+ dev->reg.init_reg(addr, 0);
+ for (addr = 0x52; addr <= 0x5e; addr++)
+ dev->reg.init_reg(addr, 0);
+ for (addr = 0x60; addr <= 0x6d; addr++)
+ dev->reg.init_reg(addr, 0);
+
+ dev->reg.find_reg(0x01).value = 0x20 /*0x22 */ ; /* enable shading, CCD, color, 1M */
+ dev->reg.find_reg(0x02).value = 0x30 /*0x38 */ ; /* auto home, one-table-move, full step */
+ if (dev->model->motor_id == MotorId::MD_5345) {
+ dev->reg.find_reg(0x02).value |= 0x01; // half-step
+ }
+ switch (dev->model->motor_id) {
+ case MotorId::MD_5345:
+ dev->reg.find_reg(0x02).value |= 0x01; /* half-step */
+ break;
+ case MotorId::XP200:
+ /* for this sheetfed scanner, no AGOHOME, nor backtracking */
+ dev->reg.find_reg(0x02).value = 0x50;
+ break;
+ default:
+ break;
+ }
+ dev->reg.find_reg(0x03).value = 0x1f /*0x17 */ ; /* lamp on */
+ dev->reg.find_reg(0x04).value = 0x13 /*0x03 */ ; /* 8 bits data, 16 bits A/D, color, Wolfson fe *//* todo: according to spec, 0x0 is reserved? */
+ switch (dev->model->adc_id)
+ {
+ case AdcId::AD_XP200:
+ dev->reg.find_reg(0x04).value = 0x12;
+ break;
+ default:
+ /* Wolfson frontend */
+ dev->reg.find_reg(0x04).value = 0x13;
+ break;
+ }
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+
+ dev->reg.find_reg(0x05).value = 0x00; /* 12 bits gamma, disable gamma, 24 clocks/pixel */
+ sanei_genesys_set_dpihw(dev->reg, sensor, sensor.optical_res);
+
+ if (dev->model->flags & GENESYS_FLAG_14BIT_GAMMA) {
+ dev->reg.find_reg(0x05).value |= REG_0x05_GMM14BIT;
+ }
+ if (dev->model->adc_id == AdcId::AD_XP200) {
+ dev->reg.find_reg(0x05).value |= 0x01; /* 12 clocks/pixel */
+ }
+
+ if (dev->model->sensor_id == SensorId::CCD_HP2300) {
+ dev->reg.find_reg(0x06).value = 0x00; // PWRBIT off, shading gain=4, normal AFE image capture
+ } else {
+ dev->reg.find_reg(0x06).value = 0x18; // PWRBIT on, shading gain=8, normal AFE image capture
+ }
+
+
+ gl646_setup_sensor(dev, sensor, &dev->reg);
+
+ dev->reg.find_reg(0x1e).value = 0xf0; /* watch-dog time */
+
+ switch (dev->model->sensor_id)
+ {
+ case SensorId::CCD_HP2300:
+ dev->reg.find_reg(0x1e).value = 0xf0;
+ dev->reg.find_reg(0x1f).value = 0x10;
+ dev->reg.find_reg(0x20).value = 0x20;
+ break;
+ case SensorId::CCD_HP2400:
+ dev->reg.find_reg(0x1e).value = 0x80;
+ dev->reg.find_reg(0x1f).value = 0x10;
+ dev->reg.find_reg(0x20).value = 0x20;
+ break;
+ case SensorId::CCD_HP3670:
+ dev->reg.find_reg(0x19).value = 0x2a;
+ dev->reg.find_reg(0x1e).value = 0x80;
+ dev->reg.find_reg(0x1f).value = 0x10;
+ dev->reg.find_reg(0x20).value = 0x20;
+ break;
+ case SensorId::CIS_XP200:
+ dev->reg.find_reg(0x1e).value = 0x10;
+ dev->reg.find_reg(0x1f).value = 0x01;
+ dev->reg.find_reg(0x20).value = 0x50;
+ break;
+ default:
+ dev->reg.find_reg(0x1f).value = 0x01;
+ dev->reg.find_reg(0x20).value = 0x50;
+ break;
+ }
+
+ dev->reg.find_reg(0x21).value = 0x08 /*0x20 */ ; /* table one steps number for forward slope curve of the acc/dec */
+ dev->reg.find_reg(0x22).value = 0x10 /*0x08 */ ; /* steps number of the forward steps for start/stop */
+ dev->reg.find_reg(0x23).value = 0x10 /*0x08 */ ; /* steps number of the backward steps for start/stop */
+ dev->reg.find_reg(0x24).value = 0x08 /*0x20 */ ; /* table one steps number backward slope curve of the acc/dec */
+ dev->reg.find_reg(0x25).value = 0x00; /* scan line numbers (7000) */
+ dev->reg.find_reg(0x26).value = 0x00 /*0x1b */ ;
+ dev->reg.find_reg(0x27).value = 0xd4 /*0x58 */ ;
+ dev->reg.find_reg(0x28).value = 0x01; /* PWM duty for lamp control */
+ dev->reg.find_reg(0x29).value = 0xff;
+
+ dev->reg.find_reg(0x2c).value = 0x02; /* set resolution (600 DPI) */
+ dev->reg.find_reg(0x2d).value = 0x58;
+ dev->reg.find_reg(0x2e).value = 0x78; /* set black&white threshold high level */
+ dev->reg.find_reg(0x2f).value = 0x7f; /* set black&white threshold low level */
+
+ dev->reg.find_reg(0x30).value = 0x00; /* begin pixel position (16) */
+ dev->reg.find_reg(0x31).value = sensor.dummy_pixel /*0x10 */ ; /* TGW + 2*TG_SHLD + x */
+ dev->reg.find_reg(0x32).value = 0x2a /*0x15 */ ; /* end pixel position (5390) */
+ dev->reg.find_reg(0x33).value = 0xf8 /*0x0e */ ; /* TGW + 2*TG_SHLD + y */
+ dev->reg.find_reg(0x34).value = sensor.dummy_pixel;
+ dev->reg.find_reg(0x35).value = 0x01 /*0x00 */ ; /* set maximum word size per line, for buffer full control (10800) */
+ dev->reg.find_reg(0x36).value = 0x00 /*0x2a */ ;
+ dev->reg.find_reg(0x37).value = 0x00 /*0x30 */ ;
+ dev->reg.find_reg(0x38).value = 0x2a; // line period (exposure time = 11000 pixels) */
+ dev->reg.find_reg(0x39).value = 0xf8;
+ dev->reg.find_reg(0x3d).value = 0x00; /* set feed steps number of motor move */
+ dev->reg.find_reg(0x3e).value = 0x00;
+ dev->reg.find_reg(0x3f).value = 0x01 /*0x00 */ ;
+
+ dev->reg.find_reg(0x60).value = 0x00; /* Z1MOD, 60h:61h:(6D b5:b3), remainder for start/stop */
+ dev->reg.find_reg(0x61).value = 0x00; /* (21h+22h)/LPeriod */
+ dev->reg.find_reg(0x62).value = 0x00; /* Z2MODE, 62h:63h:(6D b2:b0), remainder for start scan */
+ dev->reg.find_reg(0x63).value = 0x00; /* (3Dh+3Eh+3Fh)/LPeriod for one-table mode,(21h+1Fh)/LPeriod */
+ dev->reg.find_reg(0x64).value = 0x00; /* motor PWM frequency */
+ dev->reg.find_reg(0x65).value = 0x00; /* PWM duty cycle for table one motor phase (63 = max) */
+ if (dev->model->motor_id == MotorId::MD_5345) {
+ // PWM duty cycle for table one motor phase (63 = max)
+ dev->reg.find_reg(0x65).value = 0x02;
+ }
+
+ for (const auto& reg : dev->gpo.regs) {
+ dev->reg.set8(reg.address, reg.value);
+ }
+
+ switch (dev->model->motor_id) {
+ case MotorId::HP2300:
+ case MotorId::HP2400:
+ dev->reg.find_reg(0x6a).value = 0x7f; /* table two steps number for acc/dec */
+ dev->reg.find_reg(0x6b).value = 0x78; /* table two steps number for acc/dec */
+ dev->reg.find_reg(0x6d).value = 0x7f;
+ break;
+ case MotorId::MD_5345:
+ dev->reg.find_reg(0x6a).value = 0x42; /* table two fast moving step type, PWM duty for table two */
+ dev->reg.find_reg(0x6b).value = 0xff; /* table two steps number for acc/dec */
+ dev->reg.find_reg(0x6d).value = 0x41; /* select deceleration steps whenever go home (0), accel/decel stop time (31 * LPeriod) */
+ break;
+ case MotorId::XP200:
+ dev->reg.find_reg(0x6a).value = 0x7f; /* table two fast moving step type, PWM duty for table two */
+ dev->reg.find_reg(0x6b).value = 0x08; /* table two steps number for acc/dec */
+ dev->reg.find_reg(0x6d).value = 0x01; /* select deceleration steps whenever go home (0), accel/decel stop time (31 * LPeriod) */
+ break;
+ case MotorId::HP3670:
+ dev->reg.find_reg(0x6a).value = 0x41; /* table two steps number for acc/dec */
+ dev->reg.find_reg(0x6b).value = 0xc8; /* table two steps number for acc/dec */
+ dev->reg.find_reg(0x6d).value = 0x7f;
+ break;
+ default:
+ dev->reg.find_reg(0x6a).value = 0x40; /* table two fast moving step type, PWM duty for table two */
+ dev->reg.find_reg(0x6b).value = 0xff; /* table two steps number for acc/dec */
+ dev->reg.find_reg(0x6d).value = 0x01; /* select deceleration steps whenever go home (0), accel/decel stop time (31 * LPeriod) */
+ break;
+ }
+ dev->reg.find_reg(0x6c).value = 0x00; /* peroid times for LPeriod, expR,expG,expB, Z1MODE, Z2MODE (one period time) */
+}
+
+
+// Send slope table for motor movement slope_table in machine byte order
+static void gl646_send_slope_table(Genesys_Device* dev, int table_nr,
+ const std::vector<uint16_t>& slope_table,
+ int steps)
+{
+ DBG_HELPER_ARGS(dbg, "table_nr = %d, steps = %d)=%d .. %d", table_nr, steps, slope_table[0],
+ slope_table[steps - 1]);
+ int dpihw;
+ int start_address;
+
+ dpihw = dev->reg.find_reg(0x05).value >> 6;
+
+ if (dpihw == 0) /* 600 dpi */
+ start_address = 0x08000;
+ else if (dpihw == 1) /* 1200 dpi */
+ start_address = 0x10000;
+ else if (dpihw == 2) /* 2400 dpi */
+ start_address = 0x1f800;
+ else {
+ throw SaneException("Unexpected dpihw");
+ }
+
+ std::vector<uint8_t> table(steps * 2);
+ for (int i = 0; i < steps; i++)
+ {
+ table[i * 2] = slope_table[i] & 0xff;
+ table[i * 2 + 1] = slope_table[i] >> 8;
+ }
+
+ if (dev->interface->is_mock()) {
+ dev->interface->record_slope_table(table_nr, slope_table);
+ }
+ dev->interface->write_buffer(0x3c, start_address + table_nr * 0x100, table.data(), steps * 2);
+}
+
+// Set values of Analog Device type frontend
+static void gl646_set_ad_fe(Genesys_Device* dev, uint8_t set)
+{
+ DBG_HELPER(dbg);
+ int i;
+
+ if (set == AFE_INIT)
+ {
+ DBG(DBG_proc, "%s(): setting DAC %u\n", __func__,
+ static_cast<unsigned>(dev->model->adc_id));
+
+ dev->frontend = dev->frontend_initial;
+
+ // write them to analog frontend
+ dev->interface->write_fe_register(0x00, dev->frontend.regs.get_value(0x00));
+ dev->interface->write_fe_register(0x01, dev->frontend.regs.get_value(0x01));
+ }
+ if (set == AFE_SET)
+ {
+ for (i = 0; i < 3; i++) {
+ dev->interface->write_fe_register(0x02 + i, dev->frontend.get_gain(i));
+ }
+ for (i = 0; i < 3; i++) {
+ dev->interface->write_fe_register(0x05 + i, dev->frontend.get_offset(i));
+ }
+ }
+ /*
+ if (set == AFE_POWER_SAVE)
+ {
+ dev->interface->write_fe_register(0x00, dev->frontend.reg[0] | 0x04);
+ } */
+}
+
+/** set up analog frontend
+ * set up analog frontend
+ * @param dev device to set up
+ * @param set action from AFE_SET, AFE_INIT and AFE_POWERSAVE
+ * @param dpi resolution of the scan since it affects settings
+ */
+static void gl646_wm_hp3670(Genesys_Device* dev, const Genesys_Sensor& sensor, uint8_t set,
+ unsigned dpi)
+{
+ DBG_HELPER(dbg);
+ int i;
+
+ switch (set)
+ {
+ case AFE_INIT:
+ dev->interface->write_fe_register(0x04, 0x80);
+ dev->interface->sleep_ms(200);
+ dev->interface->write_register(0x50, 0x00);
+ dev->frontend = dev->frontend_initial;
+ dev->interface->write_fe_register(0x01, dev->frontend.regs.get_value(0x01));
+ dev->interface->write_fe_register(0x02, dev->frontend.regs.get_value(0x02));
+ gl646_gpio_output_enable(dev->interface->get_usb_device(), 0x07);
+ break;
+ case AFE_POWER_SAVE:
+ dev->interface->write_fe_register(0x01, 0x06);
+ dev->interface->write_fe_register(0x06, 0x0f);
+ return;
+ break;
+ default: /* AFE_SET */
+ /* mode setup */
+ i = dev->frontend.regs.get_value(0x03);
+ if (dpi > sensor.optical_res / 2)
+ {
+ /* fe_reg_0x03 must be 0x12 for 1200 dpi in WOLFSON_HP3670.
+ * WOLFSON_HP2400 in 1200 dpi mode works well with
+ * fe_reg_0x03 set to 0x32 or 0x12 but not to 0x02 */
+ i = 0x12;
+ }
+ dev->interface->write_fe_register(0x03, i);
+ /* offset and sign (or msb/lsb ?) */
+ for (i = 0; i < 3; i++) {
+ dev->interface->write_fe_register(0x20 + i, dev->frontend.get_offset(i));
+ dev->interface->write_fe_register(0x24 + i, dev->frontend.regs.get_value(0x24 + i));
+ }
+
+ // gain
+ for (i = 0; i < 3; i++) {
+ dev->interface->write_fe_register(0x28 + i, dev->frontend.get_gain(i));
+ }
+ }
+}
+
+/** Set values of analog frontend
+ * @param dev device to set
+ * @param set action to execute
+ * @param dpi dpi to setup the AFE
+ */
+static void gl646_set_fe(Genesys_Device* dev, const Genesys_Sensor& sensor, uint8_t set, int dpi)
+{
+ DBG_HELPER_ARGS(dbg, "%s,%d", set == AFE_INIT ? "init" :
+ set == AFE_SET ? "set" :
+ set == AFE_POWER_SAVE ? "powersave" : "huh?", dpi);
+ int i;
+ uint8_t val;
+
+ /* Analog Device type frontend */
+ uint8_t frontend_type = dev->reg.find_reg(0x04).value & REG_0x04_FESET;
+ if (frontend_type == 0x02) {
+ gl646_set_ad_fe(dev, set);
+ return;
+ }
+
+ /* Wolfson type frontend */
+ if (frontend_type != 0x03) {
+ throw SaneException("unsupported frontend type %d", frontend_type);
+ }
+
+ /* per frontend function to keep code clean */
+ switch (dev->model->adc_id)
+ {
+ case AdcId::WOLFSON_HP3670:
+ case AdcId::WOLFSON_HP2400:
+ gl646_wm_hp3670(dev, sensor, set, dpi);
+ return;
+ default:
+ DBG(DBG_proc, "%s(): using old method\n", __func__);
+ break;
+ }
+
+ /* initialize analog frontend */
+ if (set == AFE_INIT)
+ {
+ DBG(DBG_proc, "%s(): setting DAC %u\n", __func__,
+ static_cast<unsigned>(dev->model->adc_id));
+ dev->frontend = dev->frontend_initial;
+
+ // reset only done on init
+ dev->interface->write_fe_register(0x04, 0x80);
+
+ /* enable GPIO for some models */
+ if (dev->model->sensor_id == SensorId::CCD_HP2300) {
+ val = 0x07;
+ gl646_gpio_output_enable(dev->interface->get_usb_device(), val);
+ }
+ return;
+ }
+
+ // set fontend to power saving mode
+ if (set == AFE_POWER_SAVE) {
+ dev->interface->write_fe_register(0x01, 0x02);
+ return;
+ }
+
+ /* here starts AFE_SET */
+ /* TODO : base this test on cfg reg3 or a CCD family flag to be created */
+ /* if (dev->model->ccd_type != SensorId::CCD_HP2300
+ && dev->model->ccd_type != SensorId::CCD_HP3670
+ && dev->model->ccd_type != SensorId::CCD_HP2400) */
+ {
+ dev->interface->write_fe_register(0x00, dev->frontend.regs.get_value(0x00));
+ dev->interface->write_fe_register(0x02, dev->frontend.regs.get_value(0x02));
+ }
+
+ // start with reg3
+ dev->interface->write_fe_register(0x03, dev->frontend.regs.get_value(0x03));
+
+ switch (dev->model->sensor_id)
+ {
+ default:
+ for (i = 0; i < 3; i++) {
+ dev->interface->write_fe_register(0x24 + i, dev->frontend.regs.get_value(0x24 + i));
+ dev->interface->write_fe_register(0x28 + i, dev->frontend.get_gain(i));
+ dev->interface->write_fe_register(0x20 + i, dev->frontend.get_offset(i));
+ }
+ break;
+ /* just can't have it to work ....
+ case SensorId::CCD_HP2300:
+ case SensorId::CCD_HP2400:
+ case SensorId::CCD_HP3670:
+
+ dev->interface->write_fe_register(0x23, dev->frontend.get_offset(1));
+ dev->interface->write_fe_register(0x28, dev->frontend.get_gain(1));
+ break; */
+ }
+
+ // end with reg1
+ dev->interface->write_fe_register(0x01, dev->frontend.regs.get_value(0x01));
+}
+
+/** Set values of analog frontend
+ * this this the public interface, the gl646 as to use one more
+ * parameter to work effectively, hence the redirection
+ * @param dev device to set
+ * @param set action to execute
+ */
+void CommandSetGl646::set_fe(Genesys_Device* dev, const Genesys_Sensor& sensor, uint8_t set) const
+{
+ gl646_set_fe(dev, sensor, set, dev->settings.yres);
+}
+
+/**
+ * enters or leaves power saving mode
+ * limited to AFE for now.
+ * @param dev scanner's device
+ * @param enable true to enable power saving, false to leave it
+ */
+void CommandSetGl646::save_power(Genesys_Device* dev, bool enable) const
+{
+ DBG_HELPER_ARGS(dbg, "enable = %d", enable);
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+
+ if (enable)
+ {
+ // gl646_set_fe(dev, sensor, AFE_POWER_SAVE);
+ }
+ else
+ {
+ gl646_set_fe(dev, sensor, AFE_INIT, 0);
+ }
+}
+
+void CommandSetGl646::set_powersaving(Genesys_Device* dev, int delay /* in minutes */) const
+{
+ DBG_HELPER_ARGS(dbg, "delay = %d", delay);
+ Genesys_Register_Set local_reg(Genesys_Register_Set::SEQUENTIAL);
+ int rate, exposure_time, tgtime, time;
+
+ local_reg.init_reg(0x01, dev->reg.get8(0x01)); // disable fastmode
+ local_reg.init_reg(0x03, dev->reg.get8(0x03)); // Lamp power control
+ local_reg.init_reg(0x05, dev->reg.get8(0x05) & ~REG_0x05_BASESEL); // 24 clocks/pixel
+ local_reg.init_reg(0x38, 0x00); // line period low
+ local_reg.init_reg(0x39, 0x00); //line period high
+ local_reg.init_reg(0x6c, 0x00); // period times for LPeriod, expR,expG,expB, Z1MODE, Z2MODE
+
+ if (!delay)
+ local_reg.find_reg(0x03).value &= 0xf0; /* disable lampdog and set lamptime = 0 */
+ else if (delay < 20)
+ local_reg.find_reg(0x03).value = (local_reg.get8(0x03) & 0xf0) | 0x09; /* enable lampdog and set lamptime = 1 */
+ else
+ local_reg.find_reg(0x03).value = (local_reg.get8(0x03) & 0xf0) | 0x0f; /* enable lampdog and set lamptime = 7 */
+
+ time = delay * 1000 * 60; /* -> msec */
+ exposure_time = static_cast<std::uint32_t>((time * 32000.0 /
+ (24.0 * 64.0 * (local_reg.get8(0x03) & REG_0x03_LAMPTIM) *
+ 1024.0) + 0.5));
+ /* 32000 = system clock, 24 = clocks per pixel */
+ rate = (exposure_time + 65536) / 65536;
+ if (rate > 4)
+ {
+ rate = 8;
+ tgtime = 3;
+ }
+ else if (rate > 2)
+ {
+ rate = 4;
+ tgtime = 2;
+ }
+ else if (rate > 1)
+ {
+ rate = 2;
+ tgtime = 1;
+ }
+ else
+ {
+ rate = 1;
+ tgtime = 0;
+ }
+
+ local_reg.find_reg(0x6c).value |= tgtime << 6;
+ exposure_time /= rate;
+
+ if (exposure_time > 65535)
+ exposure_time = 65535;
+
+ local_reg.find_reg(0x38).value = exposure_time / 256;
+ local_reg.find_reg(0x39).value = exposure_time & 255;
+
+ dev->interface->write_registers(local_reg);
+}
+
+
+/**
+ * loads document into scanner
+ * currently only used by XP200
+ * bit2 (0x04) of gpio is paper event (document in/out) on XP200
+ * HOMESNR is set if no document in front of sensor, the sequence of events is
+ * paper event -> document is in the sheet feeder
+ * HOMESNR becomes 0 -> document reach sensor
+ * HOMESNR becomes 1 ->document left sensor
+ * paper event -> document is out
+ */
+void CommandSetGl646::load_document(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+
+ // FIXME: sequential not really needed in this case
+ Genesys_Register_Set regs(Genesys_Register_Set::SEQUENTIAL);
+ unsigned count;
+
+ /* no need to load document is flatbed scanner */
+ if (!dev->model->is_sheetfed) {
+ DBG(DBG_proc, "%s: nothing to load\n", __func__);
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return;
+ }
+
+ auto status = scanner_read_status(*dev);
+
+ // home sensor is set if a document is inserted
+ if (status.is_at_home) {
+ /* if no document, waits for a paper event to start loading */
+ /* with a 60 seconde minutes timeout */
+ count = 0;
+ std::uint8_t val = 0;
+ do {
+ gl646_gpio_read(dev->interface->get_usb_device(), &val);
+
+ DBG(DBG_info, "%s: GPIO=0x%02x\n", __func__, val);
+ if ((val & 0x04) != 0x04)
+ {
+ DBG(DBG_warn, "%s: no paper detected\n", __func__);
+ }
+ dev->interface->sleep_ms(200);
+ count++;
+ }
+ while (((val & 0x04) != 0x04) && (count < 300)); /* 1 min time out */
+ if (count == 300)
+ {
+ throw SaneException(SANE_STATUS_NO_DOCS, "timeout waiting for document");
+ }
+ }
+
+ /* set up to fast move before scan then move until document is detected */
+ regs.init_reg(0x01, 0x90);
+
+ /* AGOME, 2 slopes motor moving */
+ regs.init_reg(0x02, 0x79);
+
+ /* motor feeding steps to 0 */
+ regs.init_reg(0x3d, 0);
+ regs.init_reg(0x3e, 0);
+ regs.init_reg(0x3f, 0);
+
+ /* 50 fast moving steps */
+ regs.init_reg(0x6b, 50);
+
+ /* set GPO */
+ regs.init_reg(0x66, 0x30);
+
+ /* stesp NO */
+ regs.init_reg(0x21, 4);
+ regs.init_reg(0x22, 1);
+ regs.init_reg(0x23, 1);
+ regs.init_reg(0x24, 4);
+
+ /* generate slope table 2 */
+ auto slope_table = create_slope_table(MotorSlope::create_from_steps(6000, 2400, 50), 2400,
+ StepType::FULL, 1, 4,
+ get_slope_table_max_size(AsicType::GL646));
+ // document loading:
+ // send regs
+ // start motor
+ // wait e1 status to become e0
+ gl646_send_slope_table(dev, 1, slope_table.table, slope_table.steps_count);
+
+ dev->interface->write_registers(regs);
+
+ scanner_start_action(*dev, true);
+
+ count = 0;
+ do
+ {
+ status = scanner_read_status(*dev);
+ dev->interface->sleep_ms(200);
+ count++;
+ } while (status.is_motor_enabled && (count < 300));
+
+ if (count == 300)
+ {
+ throw SaneException(SANE_STATUS_JAMMED, "can't load document");
+ }
+
+ /* when loading OK, document is here */
+ dev->document = true;
+
+ /* set up to idle */
+ regs.set8(0x02, 0x71);
+ regs.set8(0x3f, 1);
+ regs.set8(0x6b, 8);
+ dev->interface->write_registers(regs);
+}
+
+/**
+ * detects end of document and adjust current scan
+ * to take it into account
+ * used by sheetfed scanners
+ */
+void CommandSetGl646::detect_document_end(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+ std::uint8_t gpio;
+ unsigned int bytes_left;
+
+ // test for document presence
+ scanner_read_print_status(*dev);
+
+ gl646_gpio_read(dev->interface->get_usb_device(), &gpio);
+ DBG(DBG_info, "%s: GPIO=0x%02x\n", __func__, gpio);
+
+ /* detect document event. There one event when the document go in,
+ * then another when it leaves */
+ if (dev->document && (gpio & 0x04) && (dev->total_bytes_read > 0)) {
+ DBG(DBG_info, "%s: no more document\n", __func__);
+ dev->document = false;
+
+ /* adjust number of bytes to read:
+ * total_bytes_to_read is the number of byte to send to frontend
+ * total_bytes_read is the number of bytes sent to frontend
+ * read_bytes_left is the number of bytes to read from the scanner
+ */
+ DBG(DBG_io, "%s: total_bytes_to_read=%zu\n", __func__, dev->total_bytes_to_read);
+ DBG(DBG_io, "%s: total_bytes_read =%zu\n", __func__, dev->total_bytes_read);
+
+ // amount of data available from scanner is what to scan
+ sanei_genesys_read_valid_words(dev, &bytes_left);
+
+ unsigned lines_in_buffer = bytes_left / dev->session.output_line_bytes_raw;
+
+ // we add the number of lines needed to read the last part of the document in
+ unsigned lines_offset = static_cast<unsigned>(
+ (dev->model->y_offset * dev->session.params.yres) / MM_PER_INCH);
+
+ unsigned remaining_lines = lines_in_buffer + lines_offset;
+
+ bytes_left = remaining_lines * dev->session.output_line_bytes_raw;
+
+ if (bytes_left < dev->get_pipeline_source().remaining_bytes()) {
+ dev->get_pipeline_source().set_remaining_bytes(bytes_left);
+ dev->total_bytes_to_read = dev->total_bytes_read + bytes_left;
+ }
+ DBG(DBG_io, "%s: total_bytes_to_read=%zu\n", __func__, dev->total_bytes_to_read);
+ DBG(DBG_io, "%s: total_bytes_read =%zu\n", __func__, dev->total_bytes_read);
+ }
+}
+
+/**
+ * eject document from the feeder
+ * currently only used by XP200
+ * TODO we currently rely on AGOHOME not being set for sheetfed scanners,
+ * maybe check this flag in eject to let the document being eject automaticaly
+ */
+void CommandSetGl646::eject_document(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+
+ // FIXME: SEQUENTIAL not really needed in this case
+ Genesys_Register_Set regs((Genesys_Register_Set::SEQUENTIAL));
+ unsigned count;
+ std::uint8_t gpio;
+
+ /* at the end there will be noe more document */
+ dev->document = false;
+
+ // first check for document event
+ gl646_gpio_read(dev->interface->get_usb_device(), &gpio);
+
+ DBG(DBG_info, "%s: GPIO=0x%02x\n", __func__, gpio);
+
+ // test status : paper event + HOMESNR -> no more doc ?
+ auto status = scanner_read_status(*dev);
+
+ // home sensor is set when document is inserted
+ if (status.is_at_home) {
+ dev->document = false;
+ DBG(DBG_info, "%s: no more document to eject\n", __func__);
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return;
+ }
+
+ // there is a document inserted, eject it
+ dev->interface->write_register(0x01, 0xb0);
+
+ /* wait for motor to stop */
+ do {
+ dev->interface->sleep_ms(200);
+ status = scanner_read_status(*dev);
+ }
+ while (status.is_motor_enabled);
+
+ /* set up to fast move before scan then move until document is detected */
+ regs.init_reg(0x01, 0xb0);
+
+ /* AGOME, 2 slopes motor moving , eject 'backward' */
+ regs.init_reg(0x02, 0x5d);
+
+ /* motor feeding steps to 119880 */
+ regs.init_reg(0x3d, 1);
+ regs.init_reg(0x3e, 0xd4);
+ regs.init_reg(0x3f, 0x48);
+
+ /* 60 fast moving steps */
+ regs.init_reg(0x6b, 60);
+
+ /* set GPO */
+ regs.init_reg(0x66, 0x30);
+
+ /* stesp NO */
+ regs.init_reg(0x21, 4);
+ regs.init_reg(0x22, 1);
+ regs.init_reg(0x23, 1);
+ regs.init_reg(0x24, 4);
+
+ /* generate slope table 2 */
+ auto slope_table = create_slope_table(MotorSlope::create_from_steps(10000, 1600, 60), 1600,
+ StepType::FULL, 1, 4,
+ get_slope_table_max_size(AsicType::GL646));
+ // document eject:
+ // send regs
+ // start motor
+ // wait c1 status to become c8 : HOMESNR and ~MOTFLAG
+ gl646_send_slope_table(dev, 1, slope_table.table, slope_table.steps_count);
+
+ dev->interface->write_registers(regs);
+
+ scanner_start_action(*dev, true);
+
+ /* loop until paper sensor tells paper is out, and till motor is running */
+ /* use a 30 timeout */
+ count = 0;
+ do {
+ status = scanner_read_status(*dev);
+
+ dev->interface->sleep_ms(200);
+ count++;
+ } while (!status.is_at_home && (count < 150));
+
+ // read GPIO on exit
+ gl646_gpio_read(dev->interface->get_usb_device(), &gpio);
+
+ DBG(DBG_info, "%s: GPIO=0x%02x\n", __func__, gpio);
+}
+
+// Send the low-level scan command
+void CommandSetGl646::begin_scan(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* reg, bool start_motor) const
+{
+ DBG_HELPER(dbg);
+ (void) sensor;
+ // FIXME: SEQUENTIAL not really needed in this case
+ Genesys_Register_Set local_reg(Genesys_Register_Set::SEQUENTIAL);
+
+ local_reg.init_reg(0x03, reg->get8(0x03));
+ local_reg.init_reg(0x01, reg->get8(0x01) | REG_0x01_SCAN);
+
+ if (start_motor) {
+ local_reg.init_reg(0x0f, 0x01);
+ } else {
+ local_reg.init_reg(0x0f, 0x00); // do not start motor yet
+ }
+
+ dev->interface->write_registers(local_reg);
+
+ dev->advance_head_pos_by_session(ScanHeadId::PRIMARY);
+}
+
+
+// Send the stop scan command
+static void end_scan_impl(Genesys_Device* dev, Genesys_Register_Set* reg, bool check_stop,
+ bool eject)
+{
+ DBG_HELPER_ARGS(dbg, "check_stop = %d, eject = %d", check_stop, eject);
+
+ scanner_stop_action_no_move(*dev, *reg);
+
+ unsigned wait_limit_seconds = 30;
+
+ /* for sheetfed scanners, we may have to eject document */
+ if (dev->model->is_sheetfed) {
+ if (eject && dev->document) {
+ dev->cmd_set->eject_document(dev);
+ }
+ wait_limit_seconds = 3;
+ }
+
+ if (is_testing_mode()) {
+ return;
+ }
+
+ dev->interface->sleep_ms(100);
+
+ if (check_stop) {
+ for (unsigned i = 0; i < wait_limit_seconds * 10; i++) {
+ if (scanner_is_motor_stopped(*dev)) {
+ return;
+ }
+
+ dev->interface->sleep_ms(100);
+ }
+ throw SaneException(SANE_STATUS_IO_ERROR, "could not stop motor");
+ }
+}
+
+// Send the stop scan command
+void CommandSetGl646::end_scan(Genesys_Device* dev, Genesys_Register_Set* reg,
+ bool check_stop) const
+{
+ end_scan_impl(dev, reg, check_stop, false);
+}
+
+/**
+ * parks head
+ * @param dev scanner's device
+ * @param wait_until_home true if the function waits until head parked
+ */
+void CommandSetGl646::move_back_home(Genesys_Device* dev, bool wait_until_home) const
+{
+ DBG_HELPER_ARGS(dbg, "wait_until_home = %d\n", wait_until_home);
+ int i;
+ int loop = 0;
+
+ auto status = scanner_read_status(*dev);
+
+ if (status.is_at_home) {
+ DBG(DBG_info, "%s: end since already at home\n", __func__);
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+ return;
+ }
+
+ /* stop motor if needed */
+ if (status.is_motor_enabled) {
+ gl646_stop_motor(dev);
+ dev->interface->sleep_ms(200);
+ }
+
+ /* when scanhead is moving then wait until scanhead stops or timeout */
+ DBG(DBG_info, "%s: ensuring that motor is off\n", __func__);
+ for (i = 400; i > 0; i--) {
+ // do not wait longer than 40 seconds, count down to get i = 0 when busy
+
+ status = scanner_read_status(*dev);
+
+ if (!status.is_motor_enabled && status.is_at_home) {
+ DBG(DBG_info, "%s: already at home and not moving\n", __func__);
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+ return;
+ }
+ if (!status.is_motor_enabled) {
+ break;
+ }
+
+ dev->interface->sleep_ms(100);
+ }
+
+ if (!i) /* the loop counted down to 0, scanner still is busy */
+ {
+ dev->set_head_pos_unknown();
+ throw SaneException(SANE_STATUS_DEVICE_BUSY, "motor is still on: device busy");
+ }
+
+ // setup for a backward scan of 65535 steps, with no actual data reading
+ auto resolution = sanei_genesys_get_lowest_dpi(dev);
+
+ const auto& sensor = sanei_genesys_find_sensor(dev, resolution, 3,
+ dev->model->default_method);
+
+ ScanSession session;
+ session.params.xres = resolution;
+ session.params.yres = resolution;
+ session.params.startx = 0;
+ session.params.starty = 65535;
+ session.params.pixels = 600;
+ session.params.requested_pixels = 600;
+ session.params.lines = 1;
+ session.params.depth = 8;
+ session.params.channels = 3;
+ session.params.scan_method = dev->model->default_method;
+ session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ session.params.color_filter = ColorFilter::RED;
+ session.params.flags = ScanFlag::USE_XCORRECTION |
+ ScanFlag::REVERSE;
+ if (dev->model->default_method == ScanMethod::TRANSPARENCY) {
+ session.params.flags |= ScanFlag::USE_XPA;
+ }
+ compute_session(dev, session, sensor);
+
+ init_regs_for_scan_session(dev, sensor, &dev->reg, session);
+
+ /* backward , no actual data scanned TODO more setup flags to avoid this register manipulations ? */
+ regs_set_optical_off(dev->model->asic_type, dev->reg);
+
+ // sets frontend
+ gl646_set_fe(dev, sensor, AFE_SET, resolution);
+
+ /* write scan registers */
+ try {
+ dev->interface->write_registers(dev->reg);
+ } catch (...) {
+ DBG(DBG_error, "%s: failed to bulk write registers\n", __func__);
+ }
+
+ /* registers are restored to an iddl state, give up if no head to park */
+ if (dev->model->is_sheetfed) {
+ DBG(DBG_proc, "%s: end \n", __func__);
+ return;
+ }
+
+ // starts scan
+ {
+ // this is effectively the same as dev->cmd_set->begin_scan(dev, sensor, &dev->reg, true);
+ // except that we don't modify the head position calculations
+
+ // FIXME: SEQUENTIAL not really needed in this case
+ Genesys_Register_Set scan_local_reg(Genesys_Register_Set::SEQUENTIAL);
+
+ scan_local_reg.init_reg(0x03, dev->reg.get8(0x03));
+ scan_local_reg.init_reg(0x01, dev->reg.get8(0x01) | REG_0x01_SCAN);
+ scan_local_reg.init_reg(0x0f, 0x01);
+
+ dev->interface->write_registers(scan_local_reg);
+ }
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("move_back_home");
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+ return;
+ }
+
+ /* loop until head parked */
+ if (wait_until_home)
+ {
+ while (loop < 300) /* do not wait longer then 30 seconds */
+ {
+ auto status = scanner_read_status(*dev);
+
+ if (status.is_at_home) {
+ DBG(DBG_info, "%s: reached home position\n", __func__);
+ DBG(DBG_proc, "%s: end\n", __func__);
+ dev->interface->sleep_ms(500);
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+ return;
+ }
+ dev->interface->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__, [&](){ gl646_stop_motor (dev); });
+ catch_all_exceptions(__func__, [&](){ end_scan_impl(dev, &dev->reg, true, false); });
+ dev->set_head_pos_unknown();
+ 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 an
+ * area at 300 dpi from very top of scanner
+ * @param dev device stucture describing the scanner
+ */
+void CommandSetGl646::search_start_position(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+ Genesys_Settings settings;
+ unsigned int resolution, x, y;
+
+ /* we scan at 300 dpi */
+ resolution = get_closest_resolution(dev->model->sensor_id, 300, 1);
+
+ // 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, resolution, 1,
+ dev->model->default_method);
+
+ /* fill settings for a gray level scan */
+ settings.scan_method = dev->model->default_method;
+ settings.scan_mode = ScanColorMode::GRAY;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = 600;
+ settings.requested_pixels = settings.pixels;
+ settings.lines = dev->model->search_lines;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ // scan the desired area
+ std::vector<uint8_t> data;
+ simple_scan(dev, sensor, settings, true, true, false, data, "search_start_position");
+
+ // handle stagger case : reorder gray data and thus loose some lines
+ auto staggered_lines = dev->session.num_staggered_lines;
+ if (staggered_lines > 0) {
+ DBG(DBG_proc, "%s: 'un-staggering'\n", __func__);
+ for (y = 0; y < settings.lines - staggered_lines; y++) {
+ /* one point out of 2 is 'unaligned' */
+ for (x = 0; x < settings.pixels; x += 2)
+ {
+ data[y * settings.pixels + x] = data[(y + staggered_lines) * settings.pixels + x];
+ }
+ }
+ /* correct line number */
+ settings.lines -= staggered_lines;
+ }
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ sanei_genesys_write_pnm_file("gl646_search_position.pnm", data.data(), settings.depth, 1,
+ settings.pixels, settings.lines);
+ }
+
+ // now search reference points on the data
+ for (auto& sensor_update :
+ sanei_genesys_find_sensors_all_for_write(dev, dev->model->default_method))
+ {
+ sanei_genesys_search_reference_point(dev, sensor_update, data.data(), 0,
+ resolution, settings.pixels, settings.lines);
+ }
+}
+
+/**
+ * internally overriden during effective calibration
+ * sets up register for coarse gain calibration
+ */
+void CommandSetGl646::init_regs_for_coarse_calibration(Genesys_Device* dev,
+ const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs) const
+{
+ DBG_HELPER(dbg);
+ (void) dev;
+ (void) sensor;
+ (void) regs;
+}
+
+
+/**
+ * init registers for shading calibration
+ * we assume that scanner's head is on an area suiting shading calibration.
+ * We scan a full scan width area by the shading line number for the device
+ * at either at full sensor's resolution or half depending upon ccd_size_divisor
+ * @param dev scanner's device
+ */
+void CommandSetGl646::init_regs_for_shading(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs) const
+{
+ DBG_HELPER(dbg);
+ (void) regs;
+ Genesys_Settings settings;
+ int cksel = 1;
+
+ /* fill settings for scan : always a color scan */
+ int channels = 3;
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, dev->settings.xres, channels,
+ dev->settings.scan_method);
+
+ unsigned ccd_size_divisor = calib_sensor.get_ccd_size_divisor_for_dpi(dev->settings.xres);
+
+ settings.scan_method = dev->settings.scan_method;
+ settings.scan_mode = dev->settings.scan_mode;
+ if (!dev->model->is_cis) {
+ // FIXME: always a color scan, but why don't we set scan_mode to COLOR_SINGLE_PASS always?
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ }
+ settings.xres = sensor.optical_res / ccd_size_divisor;
+ cksel = get_cksel(dev->model->sensor_id, dev->settings.xres, channels);
+ settings.xres = settings.xres / cksel;
+ settings.yres = settings.xres;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = (calib_sensor.sensor_pixels * settings.xres) / calib_sensor.optical_res;
+ settings.requested_pixels = settings.pixels;
+ dev->calib_lines = dev->model->shading_lines;
+ settings.lines = dev->calib_lines * (3 - ccd_size_divisor);
+ settings.depth = 16;
+ settings.color_filter = dev->settings.color_filter;
+
+ settings.disable_interpolation = dev->settings.disable_interpolation;
+ settings.threshold = dev->settings.threshold;
+
+ // we don't want top offset, but we need right margin to be the same than the one for the final
+ // scan
+ setup_for_scan(dev, calib_sensor, &dev->reg, settings, true, false, false, false);
+
+ /* used when sending shading calibration data */
+ dev->calib_pixels = settings.pixels;
+ dev->calib_channels = dev->session.params.channels;
+ if (!dev->model->is_cis) {
+ dev->calib_channels = 3;
+ }
+
+ /* no shading */
+ dev->reg.find_reg(0x01).value &= ~REG_0x01_DVDSET;
+ dev->reg.find_reg(0x02).value |= REG_0x02_ACDCDIS; /* ease backtracking */
+ dev->reg.find_reg(0x02).value &= ~(REG_0x02_FASTFED | REG_0x02_AGOHOME);
+ dev->reg.find_reg(0x05).value &= ~REG_0x05_GMMENB;
+ sanei_genesys_set_motor_power(dev->reg, false);
+
+ /* TODO another flag to setup regs ? */
+ /* enforce needed LINCNT, getting rid of extra lines for color reordering */
+ if (!dev->model->is_cis) {
+ dev->reg.set24(REG_LINCNT, dev->calib_lines);
+ } else {
+ dev->reg.set24(REG_LINCNT, dev->calib_lines * 3);
+ }
+
+ /* copy reg to calib_reg */
+ dev->calib_reg = dev->reg;
+
+ DBG(DBG_info, "%s:\n\tdev->settings.xres=%d\n\tdev->settings.yres=%d\n", __func__,
+ dev->settings.xres, dev->settings.yres);
+}
+
+bool CommandSetGl646::needs_home_before_init_regs_for_scan(Genesys_Device* dev) const
+{
+ return dev->is_head_pos_known(ScanHeadId::PRIMARY) &&
+ dev->head_pos(ScanHeadId::PRIMARY) &&
+ dev->settings.scan_method == ScanMethod::FLATBED;
+}
+
+/**
+ * set up registers for the actual scan. The scan's parameters are given
+ * through the device settings. It allocates the scan buffers.
+ */
+void CommandSetGl646::init_regs_for_scan(Genesys_Device* dev, const Genesys_Sensor& sensor) const
+{
+ DBG_HELPER(dbg);
+
+ debug_dump(DBG_info, dev->settings);
+
+ ScanSession session = calculate_scan_session(dev, sensor, dev->settings);
+
+ init_regs_for_scan_session(dev, sensor, &dev->reg, session);
+
+ /* gamma is only enabled at final scan time */
+ if (dev->settings.depth < 16) {
+ dev->reg.find_reg(0x05).value |= REG_0x05_GMMENB;
+ }
+}
+
+/**
+ * set up registers for the actual scan. The scan's parameters are given
+ * through the device settings. It allocates the scan buffers.
+ * @param dev scanner's device
+ * @param regs registers to set up
+ * @param settings settings of scan
+ * @param split true if move to scan area is split from scan, false is
+ * scan first moves to area
+ * @param xcorrection take x geometry correction into account (fixed and detected offsets)
+ * @param ycorrection take y geometry correction into account
+ */
+static void setup_for_scan(Genesys_Device* dev,
+ const Genesys_Sensor& sensor,
+ Genesys_Register_Set*regs,
+ Genesys_Settings settings,
+ bool split,
+ bool xcorrection,
+ bool ycorrection,
+ bool reverse)
+{
+ DBG_HELPER(dbg);
+
+ debug_dump(DBG_info, dev->settings);
+
+ // compute distance to move
+ float move = 0;
+ // XXX STEF XXX MD5345 -> optical_ydpi, other base_ydpi => half/full step ? */
+ if (!split) {
+ if (!dev->model->is_sheetfed) {
+ if (ycorrection) {
+ move = static_cast<float>(dev->model->y_offset);
+ }
+
+ // add tl_y to base movement
+ }
+ move += static_cast<float>(settings.tl_y);
+
+ if (move < 0) {
+ DBG(DBG_error, "%s: overriding negative move value %f\n", __func__, move);
+ move = 0;
+ }
+ }
+ move = static_cast<float>((move * dev->motor.optical_ydpi) / MM_PER_INCH);
+ DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
+
+ float start = static_cast<float>(settings.tl_x);
+ if (xcorrection) {
+ if (settings.scan_method == ScanMethod::FLATBED) {
+ start += static_cast<float>(dev->model->x_offset);
+ } else {
+ start += static_cast<float>(dev->model->x_offset_ta);
+ }
+ }
+ start = static_cast<float>((start * sensor.optical_res) / MM_PER_INCH);
+
+ ScanSession session;
+ session.params.xres = settings.xres;
+ session.params.yres = settings.yres;
+ session.params.startx = static_cast<unsigned>(start);
+ session.params.starty = static_cast<unsigned>(move);
+ session.params.pixels = settings.pixels;
+ session.params.requested_pixels = settings.requested_pixels;
+ session.params.lines = settings.lines;
+ session.params.depth = settings.depth;
+ session.params.channels = settings.get_channels();
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = settings.scan_mode;
+ session.params.color_filter = settings.color_filter;
+ session.params.flags = ScanFlag::NONE;
+ if (settings.scan_method == ScanMethod::TRANSPARENCY) {
+ session.params.flags |= ScanFlag::USE_XPA;
+ }
+ if (xcorrection) {
+ session.params.flags |= ScanFlag::USE_XCORRECTION;
+ }
+ if (reverse) {
+ session.params.flags |= ScanFlag::REVERSE;
+ }
+ compute_session(dev, session, sensor);
+
+ dev->cmd_set->init_regs_for_scan_session(dev, sensor, regs, session);
+}
+
+/**
+ * this function send gamma table to ASIC
+ */
+void CommandSetGl646::send_gamma_table(Genesys_Device* dev, const Genesys_Sensor& sensor) const
+{
+ DBG_HELPER(dbg);
+ int size;
+ int address;
+ int bits;
+
+ /* gamma table size */
+ if (dev->model->flags & GENESYS_FLAG_14BIT_GAMMA)
+ {
+ size = 16384;
+ bits = 14;
+ }
+ else
+ {
+ size = 4096;
+ bits = 12;
+ }
+
+ /* allocate temporary gamma tables: 16 bits words, 3 channels */
+ std::vector<uint8_t> gamma(size * 2 * 3);
+
+ sanei_genesys_generate_gamma_buffer(dev, sensor, bits, size-1, size, gamma.data());
+
+ /* table address */
+ switch (dev->reg.find_reg(0x05).value >> 6)
+ {
+ case 0: /* 600 dpi */
+ address = 0x09000;
+ break;
+ case 1: /* 1200 dpi */
+ address = 0x11000;
+ break;
+ case 2: /* 2400 dpi */
+ address = 0x20000;
+ break;
+ default:
+ throw SaneException("invalid dpi");
+ }
+
+ dev->interface->write_buffer(0x3c, address, gamma.data(), size * 2 * 3);
+}
+
+/** @brief this function does the led calibration.
+ * this function does the led calibration by scanning one line of the calibration
+ * area below scanner's top on white strip. The scope of this function is
+ * currently limited to the XP200
+ */
+SensorExposure CommandSetGl646::led_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs) const
+{
+ DBG_HELPER(dbg);
+ (void) regs;
+ int total_size;
+ unsigned int i, j;
+ int val;
+ int avg[3], avga, avge;
+ int turn;
+ uint16_t expr, expg, expb;
+ Genesys_Settings settings;
+ SANE_Int resolution;
+
+ unsigned channels = dev->settings.get_channels();
+
+ /* get led calibration resolution */
+ if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS)
+ {
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ }
+ else
+ {
+ settings.scan_mode = ScanColorMode::GRAY;
+ }
+ resolution = get_closest_resolution(dev->model->sensor_id, sensor.optical_res, channels);
+
+ /* offset calibration is always done in color mode */
+ settings.scan_method = dev->model->default_method;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = (sensor.sensor_pixels * resolution) / sensor.optical_res;
+ settings.requested_pixels = settings.pixels;
+ settings.lines = 1;
+ settings.depth = 16;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ /* colors * bytes_per_color * scan lines */
+ total_size = settings.pixels * channels * 2 * 1;
+
+ std::vector<uint8_t> line(total_size);
+
+/*
+ we try to get equal bright leds here:
+
+ loop:
+ average per color
+ adjust exposure times
+ */
+ expr = sensor.exposure.red;
+ expg = sensor.exposure.green;
+ expb = sensor.exposure.blue;
+
+ turn = 0;
+
+ auto calib_sensor = sensor;
+
+ bool acceptable = false;
+ do {
+ calib_sensor.exposure.red = expr;
+ calib_sensor.exposure.green = expg;
+ calib_sensor.exposure.blue = expb;
+
+ DBG(DBG_info, "%s: starting first line reading\n", __func__);
+
+ simple_scan(dev, calib_sensor, settings, false, true, false, line, "led_calibration");
+
+ if (is_testing_mode()) {
+ return calib_sensor.exposure;
+ }
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char fn[30];
+ std::snprintf(fn, 30, "gl646_led_%02d.pnm", turn);
+ sanei_genesys_write_pnm_file(fn, line.data(), 16, channels, settings.pixels, 1);
+ }
+
+ acceptable = true;
+
+ for (j = 0; j < channels; j++)
+ {
+ avg[j] = 0;
+ for (i = 0; i < settings.pixels; i++)
+ {
+ if (dev->model->is_cis)
+ val =
+ line[i * 2 + j * 2 * settings.pixels + 1] * 256 +
+ line[i * 2 + j * 2 * settings.pixels];
+ else
+ val =
+ line[i * 2 * channels + 2 * j + 1] * 256 +
+ line[i * 2 * channels + 2 * j];
+ avg[j] += val;
+ }
+
+ avg[j] /= settings.pixels;
+ }
+
+ DBG(DBG_info, "%s: average: %d,%d,%d\n", __func__, avg[0], avg[1], avg[2]);
+
+ acceptable = true;
+
+ if (!acceptable)
+ {
+ avga = (avg[0] + avg[1] + avg[2]) / 3;
+ expr = (expr * avga) / avg[0];
+ expg = (expg * avga) / avg[1];
+ expb = (expb * avga) / avg[2];
+
+ /* keep exposure time in a working window */
+ avge = (expr + expg + expb) / 3;
+ if (avge > 0x2000)
+ {
+ expr = (expr * 0x2000) / avge;
+ expg = (expg * 0x2000) / avge;
+ expb = (expb * 0x2000) / avge;
+ }
+ if (avge < 0x400)
+ {
+ expr = (expr * 0x400) / avge;
+ expg = (expg * 0x400) / avge;
+ expb = (expb * 0x400) / avge;
+ }
+ }
+
+ turn++;
+
+ }
+ while (!acceptable && turn < 100);
+
+ DBG(DBG_info,"%s: acceptable exposure: 0x%04x,0x%04x,0x%04x\n", __func__, expr, expg, expb);
+ // BUG: we don't store the result of the last iteration to the sensor
+ return calib_sensor.exposure;
+}
+
+/**
+ * average dark pixels of a 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;
+}
+
+
+/** @brief calibration for AD frontend devices
+ * we do simple scan until all black_pixels are higher than 0,
+ * raising offset at each turn.
+ */
+static void ad_fe_offset_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor)
+{
+ DBG_HELPER(dbg);
+ (void) sensor;
+
+ unsigned int channels;
+ int pass = 0;
+ SANE_Int resolution;
+ Genesys_Settings settings;
+ unsigned int x, y, adr, min;
+ unsigned int bottom, black_pixels;
+
+ channels = 3;
+ resolution = get_closest_resolution(dev->model->sensor_id, sensor.optical_res, channels);
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, 3, ScanMethod::FLATBED);
+ black_pixels = (calib_sensor.black_pixels * resolution) / calib_sensor.optical_res;
+ DBG(DBG_io2, "%s: black_pixels=%d\n", __func__, black_pixels);
+
+ settings.scan_method = dev->model->default_method;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = (calib_sensor.sensor_pixels * resolution) / calib_sensor.optical_res;
+ settings.requested_pixels = settings.pixels;
+ settings.lines = CALIBRATION_LINES;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ /* scan first line of data with no gain */
+ dev->frontend.set_gain(0, 0);
+ dev->frontend.set_gain(1, 0);
+ dev->frontend.set_gain(2, 0);
+
+ std::vector<uint8_t> line;
+
+ /* scan with no move */
+ bottom = 1;
+ do
+ {
+ pass++;
+ dev->frontend.set_offset(0, bottom);
+ dev->frontend.set_offset(1, bottom);
+ dev->frontend.set_offset(2, bottom);
+ simple_scan(dev, calib_sensor, settings, false, true, false, line,
+ "ad_fe_offset_calibration");
+
+ if (is_testing_mode()) {
+ return;
+ }
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char title[30];
+ std::snprintf(title, 30, "gl646_offset%03d.pnm", static_cast<int>(bottom));
+ sanei_genesys_write_pnm_file (title, line.data(), 8, channels,
+ settings.pixels, settings.lines);
+ }
+
+ min = 0;
+ for (y = 0; y < settings.lines; y++)
+ {
+ for (x = 0; x < black_pixels; x++)
+ {
+ adr = (x + y * settings.pixels) * channels;
+ if (line[adr] > min)
+ min = line[adr];
+ if (line[adr + 1] > min)
+ min = line[adr + 1];
+ if (line[adr + 2] > min)
+ min = line[adr + 2];
+ }
+ }
+
+ DBG(DBG_io2, "%s: pass=%d, min=%d\n", __func__, pass, min);
+ bottom++;
+ }
+ while (pass < 128 && min == 0);
+ if (pass == 128)
+ {
+ throw SaneException(SANE_STATUS_INVAL, "failed to find correct offset");
+ }
+
+ 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));
+}
+
+/**
+ * This function does the offset calibration by scanning one line of the calibration
+ * area below scanner's top. There is a black margin and the remaining is white.
+ * genesys_search_start() must have been called so that the offsets and margins
+ * are already known.
+ * @param dev scanner's device
+*/
+void CommandSetGl646::offset_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs) const
+{
+ DBG_HELPER(dbg);
+ (void) regs;
+
+ unsigned int channels;
+ int pass = 0, avg;
+ Genesys_Settings settings;
+ int topavg, bottomavg;
+ int top, bottom, black_pixels;
+
+ if (dev->model->adc_id == AdcId::AD_XP200) {
+ ad_fe_offset_calibration(dev, sensor);
+ return;
+ }
+
+ DBG(DBG_proc, "%s: start\n", __func__); // TODO
+
+ /* setup for a RGB scan, one full sensor's width line */
+ /* resolution is the one from the final scan */
+ channels = 3;
+ int resolution = get_closest_resolution(dev->model->sensor_id, dev->settings.xres, channels);
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, 3, ScanMethod::FLATBED);
+ black_pixels = (calib_sensor.black_pixels * resolution) / calib_sensor.optical_res;
+
+ DBG(DBG_io2, "%s: black_pixels=%d\n", __func__, black_pixels);
+
+ settings.scan_method = dev->model->default_method;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = (calib_sensor.sensor_pixels * resolution) / calib_sensor.optical_res;
+ settings.requested_pixels = settings.pixels;
+ settings.lines = CALIBRATION_LINES;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ /* scan first line of data with no gain, but with offset from
+ * last calibration */
+ dev->frontend.set_gain(0, 0);
+ dev->frontend.set_gain(1, 0);
+ dev->frontend.set_gain(2, 0);
+
+ /* scan with no move */
+ bottom = 90;
+ dev->frontend.set_offset(0, bottom);
+ dev->frontend.set_offset(1, bottom);
+ dev->frontend.set_offset(2, bottom);
+
+ std::vector<uint8_t> first_line, second_line;
+
+ simple_scan(dev, calib_sensor, settings, false, true, false, first_line,
+ "offset_first_line");
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char title[30];
+ std::snprintf(title, 30, "gl646_offset%03d.pnm", bottom);
+ sanei_genesys_write_pnm_file(title, first_line.data(), 8, channels,
+ settings.pixels, settings.lines);
+ }
+ bottomavg = dark_average(first_line.data(), settings.pixels, settings.lines, channels,
+ black_pixels);
+ DBG(DBG_io2, "%s: bottom avg=%d\n", __func__, bottomavg);
+
+ /* now top value */
+ top = 231;
+ dev->frontend.set_offset(0, top);
+ dev->frontend.set_offset(1, top);
+ dev->frontend.set_offset(2, top);
+ simple_scan(dev, calib_sensor, settings, false, true, false, second_line,
+ "offset_second_line");
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char title[30];
+ std::snprintf(title, 30, "gl646_offset%03d.pnm", top);
+ sanei_genesys_write_pnm_file (title, second_line.data(), 8, channels,
+ settings.pixels, settings.lines);
+ }
+ topavg = dark_average(second_line.data(), settings.pixels, settings.lines, channels,
+ black_pixels);
+ DBG(DBG_io2, "%s: top avg=%d\n", __func__, topavg);
+
+ if (is_testing_mode()) {
+ return;
+ }
+
+ /* 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
+ simple_scan(dev, calib_sensor, settings, false, true, false, second_line,
+ "offset_calibration_i");
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char title[30];
+ std::snprintf(title, 30, "gl646_offset%03d.pnm", dev->frontend.get_offset(1));
+ sanei_genesys_write_pnm_file (title, second_line.data(), 8, channels,
+ settings.pixels, settings.lines);
+ }
+
+ avg =
+ dark_average (second_line.data(), settings.pixels, settings.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));
+}
+
+/** @brief gain calibration for Analog Device frontends
+ * Alternative coarse gain calibration
+ */
+static void ad_fe_coarse_gain_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs, int dpi)
+{
+ DBG_HELPER(dbg);
+ (void) sensor;
+ (void) regs;
+
+ unsigned int i, channels, val;
+ unsigned int size, count, resolution, pass;
+ float average;
+ Genesys_Settings settings;
+ char title[32];
+
+ /* setup for a RGB scan, one full sensor's width line */
+ /* resolution is the one from the final scan */
+ channels = 3;
+ resolution = get_closest_resolution(dev->model->sensor_id, dpi, channels);
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, 3, ScanMethod::FLATBED);
+
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+
+ settings.scan_method = dev->model->default_method;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = (calib_sensor.sensor_pixels * resolution) / calib_sensor.optical_res;
+ settings.requested_pixels = settings.pixels;
+ settings.lines = CALIBRATION_LINES;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ size = channels * settings.pixels * settings.lines;
+
+ /* start gain value */
+ dev->frontend.set_gain(0, 1);
+ dev->frontend.set_gain(1, 1);
+ dev->frontend.set_gain(2, 1);
+
+ average = 0;
+ pass = 0;
+
+ std::vector<uint8_t> line;
+
+ // loop until each channel raises to acceptable level
+ while ((average < calib_sensor.gain_white_ref) && (pass < 30)) {
+ // scan with no move
+ simple_scan(dev, calib_sensor, settings, false, true, false, line,
+ "ad_fe_coarse_gain_calibration");
+
+ /* log scanning data */
+ if (DBG_LEVEL >= DBG_data)
+ {
+ std::sprintf(title, "gl646_alternative_gain%02d.pnm", pass);
+ sanei_genesys_write_pnm_file(title, line.data(), 8, channels, settings.pixels,
+ settings.lines);
+ }
+ pass++;
+
+ /* computes white average */
+ average = 0;
+ count = 0;
+ for (i = 0; i < size; i++)
+ {
+ val = line[i];
+ average += val;
+ count++;
+ }
+ average = average / count;
+
+ uint8_t gain0 = dev->frontend.get_gain(0);
+ // adjusts gain for the channel
+ if (average < calib_sensor.gain_white_ref) {
+ gain0 += 1;
+ }
+
+ dev->frontend.set_gain(0, gain0);
+ dev->frontend.set_gain(1, gain0);
+ dev->frontend.set_gain(2, gain0);
+
+ DBG(DBG_proc, "%s: average = %.2f, gain = %d\n", __func__, average, gain0);
+ }
+
+ DBG(DBG_info, "%s: gains=(%d,%d,%d)\n", __func__,
+ dev->frontend.get_gain(0),
+ dev->frontend.get_gain(1),
+ dev->frontend.get_gain(2));
+}
+
+/**
+ * Alternative coarse gain calibration
+ * this on uses the settings from offset_calibration. First scan moves so
+ * we can go to calibration area for XPA.
+ * @param dev device for scan
+ * @param dpi resolutnio to calibrate at
+ */
+void CommandSetGl646::coarse_gain_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs, int dpi) const
+{
+ DBG_HELPER(dbg);
+ (void) dpi;
+
+ unsigned int i, j, k, channels, val, maximum, idx;
+ unsigned int count, resolution, pass;
+ float average[3];
+ Genesys_Settings settings;
+ char title[32];
+
+ if (dev->model->sensor_id == SensorId::CIS_XP200) {
+ return ad_fe_coarse_gain_calibration(dev, sensor, regs, sensor.optical_res);
+ }
+
+ /* setup for a RGB scan, one full sensor's width line */
+ /* resolution is the one from the final scan */
+ channels = 3;
+
+ /* we are searching a sensor resolution */
+ resolution = get_closest_resolution(dev->model->sensor_id, dev->settings.xres, channels);
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, channels,
+ ScanMethod::FLATBED);
+
+ settings.scan_method = dev->settings.scan_method;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_y = 0;
+ if (settings.scan_method == ScanMethod::FLATBED)
+ {
+ settings.tl_x = 0;
+ settings.pixels = (calib_sensor.sensor_pixels * resolution) / calib_sensor.optical_res;
+ }
+ else
+ {
+ settings.tl_x = dev->model->x_offset_ta;
+ settings.pixels = static_cast<unsigned>((dev->model->x_size_ta * resolution) / MM_PER_INCH);
+ }
+ settings.requested_pixels = settings.pixels;
+ settings.lines = CALIBRATION_LINES;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ /* start gain value */
+ dev->frontend.set_gain(0, 1);
+ dev->frontend.set_gain(1, 1);
+ dev->frontend.set_gain(2, 1);
+
+ if (channels > 1)
+ {
+ average[0] = 0;
+ average[1] = 0;
+ average[2] = 0;
+ idx = 0;
+ }
+ else
+ {
+ average[0] = 255;
+ average[1] = 255;
+ average[2] = 255;
+ switch (dev->settings.color_filter) {
+ case ColorFilter::RED: idx = 0; break;
+ case ColorFilter::GREEN: idx = 1; break;
+ case ColorFilter::BLUE: idx = 2; break;
+ default: idx = 0; break; // should not happen
+ }
+ average[idx] = 0;
+ }
+ pass = 0;
+
+ std::vector<uint8_t> line;
+
+ /* loop until each channel raises to acceptable level */
+ while (((average[0] < calib_sensor.gain_white_ref) ||
+ (average[1] < calib_sensor.gain_white_ref) ||
+ (average[2] < calib_sensor.gain_white_ref)) && (pass < 30))
+ {
+ // scan with no move
+ simple_scan(dev, calib_sensor, settings, false, true, false, line,
+ "coarse_gain_calibration");
+
+ /* log scanning data */
+ if (DBG_LEVEL >= DBG_data)
+ {
+ std::sprintf(title, "gl646_gain%02d.pnm", pass);
+ sanei_genesys_write_pnm_file(title, line.data(), 8, channels, settings.pixels,
+ settings.lines);
+ }
+ pass++;
+
+ /* average high level for each channel and compute gain
+ to reach the target code
+ we only use the central half of the CCD data */
+ for (k = idx; k < idx + channels; k++)
+ {
+ /* we find the maximum white value, so we can deduce a threshold
+ to average white values */
+ maximum = 0;
+ for (i = 0; i < settings.lines; i++)
+ {
+ for (j = 0; j < settings.pixels; j++)
+ {
+ val = line[i * channels * settings.pixels + j + k];
+ if (val > maximum)
+ maximum = val;
+ }
+ }
+
+ /* threshold */
+ maximum = static_cast<int>(maximum * 0.9);
+
+ /* computes white average */
+ average[k] = 0;
+ count = 0;
+ for (i = 0; i < settings.lines; i++)
+ {
+ for (j = 0; j < settings.pixels; j++)
+ {
+ /* averaging only white points allow us not to care about dark margins */
+ val = line[i * channels * settings.pixels + j + k];
+ if (val > maximum)
+ {
+ average[k] += val;
+ count++;
+ }
+ }
+ }
+ average[k] = average[k] / count;
+
+ /* adjusts gain for the channel */
+ if (average[k] < calib_sensor.gain_white_ref)
+ dev->frontend.set_gain(k, dev->frontend.get_gain(k) + 1);
+
+ DBG(DBG_proc, "%s: channel %d, average = %.2f, gain = %d\n", __func__, k, average[k],
+ dev->frontend.get_gain(k));
+ }
+ }
+
+ if (channels < 3) {
+ dev->frontend.set_gain(1, dev->frontend.get_gain(0));
+ dev->frontend.set_gain(2, dev->frontend.get_gain(0));
+ }
+
+ DBG(DBG_info, "%s: gains=(%d,%d,%d)\n", __func__,
+ dev->frontend.get_gain(0),
+ dev->frontend.get_gain(1),
+ dev->frontend.get_gain(2));
+}
+
+/**
+ * sets up the scanner's register for warming up. We scan 2 lines without moving.
+ *
+ */
+void CommandSetGl646::init_regs_for_warmup(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* local_reg, int* channels,
+ int* total_size) const
+{
+ DBG_HELPER(dbg);
+ (void) sensor;
+
+ Genesys_Settings settings;
+ int resolution, lines;
+
+ dev->frontend = dev->frontend_initial;
+
+ resolution = get_closest_resolution(dev->model->sensor_id, 300, 1);
+
+ const auto& local_sensor = sanei_genesys_find_sensor(dev, resolution, 1,
+ dev->settings.scan_method);
+
+ /* set up for a half width 2 lines gray scan without moving */
+ settings.scan_method = dev->model->default_method;
+ settings.scan_mode = ScanColorMode::GRAY;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = (local_sensor.sensor_pixels * resolution) / local_sensor.optical_res;
+ settings.requested_pixels = settings.pixels;
+ settings.lines = 2;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ // setup for scan
+ setup_for_scan(dev, local_sensor, &dev->reg, settings, true, false, false, false);
+
+ /* we are not going to move, so clear these bits */
+ dev->reg.find_reg(0x02).value &= ~(REG_0x02_FASTFED | REG_0x02_AGOHOME);
+
+ /* don't enable any correction for this scan */
+ dev->reg.find_reg(0x01).value &= ~REG_0x01_DVDSET;
+
+ /* copy to local_reg */
+ *local_reg = dev->reg;
+
+ /* turn off motor during this scan */
+ sanei_genesys_set_motor_power(*local_reg, false);
+
+ /* returned value to higher level warmup function */
+ *channels = 1;
+ lines = local_reg->get24(REG_LINCNT) + 1;
+ *total_size = lines * settings.pixels;
+
+ // now registers are ok, write them to scanner
+ gl646_set_fe(dev, local_sensor, AFE_SET, settings.xres);
+ dev->interface->write_registers(*local_reg);
+}
+
+
+/*
+ * this function moves head without scanning, forward, then backward
+ * so that the head goes to park position.
+ * as a by-product, also check for lock
+ */
+static void gl646_repark_head(Genesys_Device* dev)
+{
+ DBG_HELPER(dbg);
+ Genesys_Settings settings;
+ unsigned int expected, steps;
+
+ settings.scan_method = dev->model->default_method;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = get_closest_resolution(dev->model->sensor_id, 75, 1);
+ settings.yres = settings.xres;
+ settings.tl_x = 0;
+ settings.tl_y = 5;
+ settings.pixels = 600;
+ settings.requested_pixels = settings.pixels;
+ settings.lines = 4;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ const auto& sensor = sanei_genesys_find_sensor(dev, settings.xres, 3,
+ dev->model->default_method);
+
+ setup_for_scan(dev, sensor, &dev->reg, settings, false, false, false, false);
+
+ /* TODO seems wrong ... no effective scan */
+ regs_set_optical_off(dev->model->asic_type, dev->reg);
+
+ dev->interface->write_registers(dev->reg);
+
+ // start scan
+ dev->cmd_set->begin_scan(dev, sensor, &dev->reg, true);
+
+ expected = dev->reg.get24(REG_FEEDL);
+ do
+ {
+ dev->interface->sleep_ms(100);
+ sanei_genesys_read_feed_steps (dev, &steps);
+ }
+ while (steps < expected);
+
+ // toggle motor flag, put an huge step number and redo move backward
+ dev->cmd_set->move_back_home(dev, 1);
+}
+
+/* *
+ * initialize ASIC : registers, motor tables, and gamma tables
+ * then ensure scanner's head is at home
+ * @param dev device description of the scanner to initailize
+ */
+void CommandSetGl646::init(Genesys_Device* dev) const
+{
+ DBG_INIT();
+ DBG_HELPER(dbg);
+
+ uint8_t val = 0;
+ uint32_t addr = 0xdead;
+ size_t len;
+
+ // to detect real power up condition, we write to REG_0x41 with pwrbit set, then read it back.
+ // When scanner is cold (just replugged) PWRBIT will be set in the returned value
+ auto status = scanner_read_status(*dev);
+ if (status.is_replugged) {
+ DBG(DBG_info, "%s: device is cold\n", __func__);
+ } else {
+ DBG(DBG_info, "%s: device is hot\n", __func__);
+ }
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+
+ /* if scanning session hasn't been initialized, set it up */
+ if (!dev->already_initialized)
+ {
+ dev->dark_average_data.clear();
+ dev->white_average_data.clear();
+
+ dev->settings.color_filter = ColorFilter::GREEN;
+
+ /* Set default values for registers */
+ gl646_init_regs (dev);
+
+ // Init shading data
+ sanei_genesys_init_shading_data(dev, sensor, sensor.sensor_pixels);
+
+ /* initial calibration reg values */
+ dev->calib_reg = dev->reg;
+ }
+
+ // execute physical unit init only if cold
+ if (status.is_replugged)
+ {
+ DBG(DBG_info, "%s: device is cold\n", __func__);
+
+ val = 0x04;
+ dev->interface->get_usb_device().control_msg(REQUEST_TYPE_OUT, REQUEST_REGISTER,
+ VALUE_INIT, INDEX, 1, &val);
+
+ // ASIC reset
+ dev->interface->write_register(0x0e, 0x00);
+ dev->interface->sleep_ms(100);
+
+ // Write initial registers
+ dev->interface->write_registers(dev->reg);
+
+ // send gamma tables if needed
+ dev->cmd_set->send_gamma_table(dev, sensor);
+
+ // Set powersaving(default = 15 minutes)
+ dev->cmd_set->set_powersaving(dev, 15);
+ }
+
+ // Set analog frontend
+ gl646_set_fe(dev, sensor, AFE_INIT, 0);
+
+ /* GPO enabling for XP200 */
+ if (dev->model->sensor_id == SensorId::CIS_XP200) {
+ dev->interface->write_register(0x68, dev->gpo.regs.get_value(0x68));
+ dev->interface->write_register(0x69, dev->gpo.regs.get_value(0x69));
+
+ // enable GPIO
+ gl646_gpio_output_enable(dev->interface->get_usb_device(), 6);
+
+ // writes 0 to GPIO
+ gl646_gpio_write(dev->interface->get_usb_device(), 0);
+
+ // clear GPIO enable
+ gl646_gpio_output_enable(dev->interface->get_usb_device(), 0);
+
+ dev->interface->write_register(0x66, 0x10);
+ dev->interface->write_register(0x66, 0x00);
+ dev->interface->write_register(0x66, 0x10);
+ }
+
+ /* MD6471/G2410 and XP200 read/write data from an undocumented memory area which
+ * is after the second slope table */
+ if (dev->model->gpio_id != GpioId::HP3670 &&
+ dev->model->gpio_id != GpioId::HP2400)
+ {
+ switch (sensor.optical_res)
+ {
+ case 600:
+ addr = 0x08200;
+ break;
+ case 1200:
+ addr = 0x10200;
+ break;
+ case 2400:
+ addr = 0x1fa00;
+ break;
+ }
+ sanei_genesys_set_buffer_address(dev, addr);
+
+ sanei_usb_set_timeout (2 * 1000);
+ len = 6;
+ // for some reason, read fails here for MD6471, HP2300 and XP200 one time out of
+ // 2 scanimage launches
+ try {
+ dev->interface->bulk_read_data(0x45, dev->control, len);
+ } catch (...) {
+ dev->interface->bulk_read_data(0x45, dev->control, len);
+ }
+ DBG(DBG_info, "%s: control read=0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n", __func__,
+ dev->control[0], dev->control[1], dev->control[2], dev->control[3], dev->control[4],
+ dev->control[5]);
+ sanei_usb_set_timeout (30 * 1000);
+ }
+ else
+ /* HP2400 and HP3670 case */
+ {
+ dev->control[0] = 0x00;
+ dev->control[1] = 0x00;
+ dev->control[2] = 0x01;
+ dev->control[3] = 0x00;
+ dev->control[4] = 0x00;
+ dev->control[5] = 0x00;
+ }
+
+ /* ensure head is correctly parked, and check lock */
+ if (!dev->model->is_sheetfed) {
+ if (dev->model->flags & GENESYS_FLAG_REPARK)
+ {
+ // FIXME: if repark fails, we should print an error message that the scanner is locked and
+ // the user should unlock the lock. We should also rethrow with SANE_STATUS_JAMMED
+ gl646_repark_head(dev);
+ }
+ else
+ {
+ move_back_home(dev, true);
+ }
+ }
+
+ /* here session and device are initialized */
+ dev->already_initialized = true;
+}
+
+void CommandSetGl646::move_to_ta(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+
+ simple_move(dev, static_cast<int>(dev->model->y_offset_sensor_to_ta));
+}
+
+
+/**
+ * Does a simple scan: ie no line reordering and avanced data buffering and
+ * shading correction. Memory for data is allocated in this function
+ * and must be freed by caller.
+ * @param dev device of the scanner
+ * @param settings parameters of the scan
+ * @param move true if moving during scan
+ * @param forward true if moving forward during scan
+ * @param shading true to enable shading correction
+ * @param data pointer for the data
+ */
+static void simple_scan(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Settings settings, bool move, bool forward,
+ bool shading, std::vector<uint8_t>& data,
+ const char* scan_identifier)
+{
+ DBG_HELPER_ARGS(dbg, "move=%d, forward=%d, shading=%d", move, forward, shading);
+ unsigned int size, lines, x, y, bpp;
+ bool split;
+
+ /* round up to multiple of 3 in case of CIS scanner */
+ if (dev->model->is_cis) {
+ settings.lines = ((settings.lines + 2) / 3) * 3;
+ }
+
+ /* setup for move then scan */
+ split = !(move && settings.tl_y > 0);
+ setup_for_scan(dev, sensor, &dev->reg, settings, split, false, false, !forward);
+
+ /* allocate memory fo scan : LINCNT may have been adjusted for CCD reordering */
+ if (dev->model->is_cis) {
+ lines = dev->reg.get24(REG_LINCNT) / 3;
+ } else {
+ lines = dev->reg.get24(REG_LINCNT) + 1;
+ }
+ size = lines * settings.pixels;
+ if (settings.depth == 16) {
+ bpp = 2;
+ } else {
+ bpp = 1;
+ }
+ size *= bpp * settings.get_channels();
+ data.clear();
+ data.resize(size);
+
+ DBG(DBG_io, "%s: allocated %d bytes of memory for %d lines\n", __func__, size, lines);
+
+ /* put back real line number in settings */
+ settings.lines = lines;
+
+ // initialize frontend
+ gl646_set_fe(dev, sensor, AFE_SET, settings.xres);
+
+ /* no shading correction and not watch dog for simple scan */
+ dev->reg.find_reg(0x01).value &= ~(REG_0x01_DVDSET | REG_0x01_DOGENB);
+ if (shading) {
+ dev->reg.find_reg(0x01).value |= REG_0x01_DVDSET;
+ }
+
+ /* enable gamma table for the scan */
+ dev->reg.find_reg(0x05).value |= REG_0x05_GMMENB;
+
+ /* one table movement for simple scan */
+ dev->reg.find_reg(0x02).value &= ~REG_0x02_FASTFED;
+
+ if (!move) {
+ sanei_genesys_set_motor_power(dev->reg, false);
+
+ /* no automatic go home if no movement */
+ dev->reg.find_reg(0x02).value &= ~REG_0x02_AGOHOME;
+ }
+
+ /* no automatic go home when using XPA */
+ if (settings.scan_method == ScanMethod::TRANSPARENCY) {
+ dev->reg.find_reg(0x02).value &= ~REG_0x02_AGOHOME;
+ }
+
+ // write scan registers
+ dev->interface->write_registers(dev->reg);
+
+ // starts scan
+ dev->cmd_set->begin_scan(dev, sensor, &dev->reg, move);
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint(scan_identifier);
+ return;
+ }
+
+ wait_until_buffer_non_empty(dev, true);
+
+ // now we're on target, we can read data
+ sanei_genesys_read_data_from_scanner(dev, data.data(), size);
+
+ /* in case of CIS scanner, we must reorder data */
+ if (dev->model->is_cis && settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS) {
+ /* alloc one line sized working buffer */
+ std::vector<uint8_t> buffer(settings.pixels * 3 * bpp);
+
+ /* reorder one line of data and put it back to buffer */
+ if (bpp == 1)
+ {
+ for (y = 0; y < lines; y++)
+ {
+ /* reorder line */
+ for (x = 0; x < settings.pixels; x++)
+ {
+ buffer[x * 3] = data[y * settings.pixels * 3 + x];
+ buffer[x * 3 + 1] = data[y * settings.pixels * 3 + settings.pixels + x];
+ buffer[x * 3 + 2] = data[y * settings.pixels * 3 + 2 * settings.pixels + x];
+ }
+ /* copy line back */
+ memcpy (data.data() + settings.pixels * 3 * y, buffer.data(),
+ settings.pixels * 3);
+ }
+ }
+ else
+ {
+ for (y = 0; y < lines; y++)
+ {
+ /* reorder line */
+ for (x = 0; x < settings.pixels; x++)
+ {
+ buffer[x * 6] = data[y * settings.pixels * 6 + x * 2];
+ buffer[x * 6 + 1] = data[y * settings.pixels * 6 + x * 2 + 1];
+ buffer[x * 6 + 2] = data[y * settings.pixels * 6 + 2 * settings.pixels + x * 2];
+ buffer[x * 6 + 3] = data[y * settings.pixels * 6 + 2 * settings.pixels + x * 2 + 1];
+ buffer[x * 6 + 4] = data[y * settings.pixels * 6 + 4 * settings.pixels + x * 2];
+ buffer[x * 6 + 5] = data[y * settings.pixels * 6 + 4 * settings.pixels + x * 2 + 1];
+ }
+ /* copy line back */
+ memcpy (data.data() + settings.pixels * 6 * y, buffer.data(),
+ settings.pixels * 6);
+ }
+ }
+ }
+
+ // end scan , waiting the motor to stop if needed (if moving), but without ejecting doc
+ end_scan_impl(dev, &dev->reg, true, false);
+}
+
+/**
+ * Does a simple move of the given distance by doing a scan at lowest resolution
+ * shading correction. Memory for data is allocated in this function
+ * and must be freed by caller.
+ * @param dev device of the scanner
+ * @param distance distance to move in MM
+ */
+static void simple_move(Genesys_Device* dev, SANE_Int distance)
+{
+ DBG_HELPER_ARGS(dbg, "%d mm", distance);
+ Genesys_Settings settings;
+
+ unsigned resolution = sanei_genesys_get_lowest_dpi(dev);
+
+ const auto& sensor = sanei_genesys_find_sensor(dev, resolution, 3, dev->model->default_method);
+
+ /* TODO give a no AGOHOME flag */
+ settings.scan_method = dev->model->default_method;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_y = 0;
+ settings.tl_x = 0;
+ settings.pixels = (sensor.sensor_pixels * settings.xres) / sensor.optical_res;
+ settings.requested_pixels = settings.pixels;
+ settings.lines = static_cast<unsigned>((distance * settings.xres) / MM_PER_INCH);
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ std::vector<uint8_t> data;
+ simple_scan(dev, sensor, settings, true, true, false, data, "simple_move");
+}
+
+/**
+ * update the status of the required sensor in the scanner session
+ * the button fileds are used to make events 'sticky'
+ */
+void CommandSetGl646::update_hardware_sensors(Genesys_Scanner* session) const
+{
+ DBG_HELPER(dbg);
+ Genesys_Device *dev = session->dev;
+ uint8_t value;
+
+ // do what is needed to get a new set of events, but try to not loose any of them.
+ gl646_gpio_read(dev->interface->get_usb_device(), &value);
+ DBG(DBG_io, "%s: GPIO=0x%02x\n", __func__, value);
+
+ // scan button
+ if (dev->model->buttons & GENESYS_HAS_SCAN_SW) {
+ switch (dev->model->gpio_id) {
+ case GpioId::XP200:
+ session->buttons[BUTTON_SCAN_SW].write((value & 0x02) != 0);
+ break;
+ case GpioId::MD_5345:
+ session->buttons[BUTTON_SCAN_SW].write(value == 0x16);
+ break;
+ case GpioId::HP2300:
+ session->buttons[BUTTON_SCAN_SW].write(value == 0x6c);
+ break;
+ case GpioId::HP3670:
+ case GpioId::HP2400:
+ session->buttons[BUTTON_SCAN_SW].write((value & 0x20) == 0);
+ break;
+ default:
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "unknown gpo type");
+ }
+ }
+
+ // email button
+ if (dev->model->buttons & GENESYS_HAS_EMAIL_SW) {
+ switch (dev->model->gpio_id) {
+ case GpioId::MD_5345:
+ session->buttons[BUTTON_EMAIL_SW].write(value == 0x12);
+ break;
+ case GpioId::HP3670:
+ case GpioId::HP2400:
+ session->buttons[BUTTON_EMAIL_SW].write((value & 0x08) == 0);
+ break;
+ default:
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "unknown gpo type");
+ }
+ }
+
+ // copy button
+ if (dev->model->buttons & GENESYS_HAS_COPY_SW) {
+ switch (dev->model->gpio_id) {
+ case GpioId::MD_5345:
+ session->buttons[BUTTON_COPY_SW].write(value == 0x11);
+ break;
+ case GpioId::HP2300:
+ session->buttons[BUTTON_COPY_SW].write(value == 0x5c);
+ break;
+ case GpioId::HP3670:
+ case GpioId::HP2400:
+ session->buttons[BUTTON_COPY_SW].write((value & 0x10) == 0);
+ break;
+ default:
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "unknown gpo type");
+ }
+ }
+
+ // power button
+ if (dev->model->buttons & GENESYS_HAS_POWER_SW) {
+ switch (dev->model->gpio_id) {
+ case GpioId::MD_5345:
+ session->buttons[BUTTON_POWER_SW].write(value == 0x14);
+ break;
+ default:
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "unknown gpo type");
+ }
+ }
+
+ // ocr button
+ if (dev->model->buttons & GENESYS_HAS_OCR_SW) {
+ switch (dev->model->gpio_id) {
+ case GpioId::MD_5345:
+ session->buttons[BUTTON_OCR_SW].write(value == 0x13);
+ break;
+ default:
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "unknown gpo type");
+ }
+ }
+
+ // document detection
+ if (dev->model->buttons & GENESYS_HAS_PAGE_LOADED_SW) {
+ switch (dev->model->gpio_id) {
+ case GpioId::XP200:
+ session->buttons[BUTTON_PAGE_LOADED_SW].write((value & 0x04) != 0);
+ break;
+ default:
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "unknown gpo type");
+ }
+ }
+
+ /* XPA detection */
+ if (dev->model->flags & GENESYS_FLAG_XPA)
+ {
+ switch (dev->model->gpio_id) {
+ case GpioId::HP3670:
+ case GpioId::HP2400:
+ /* test if XPA is plugged-in */
+ if ((value & 0x40) == 0)
+ {
+ DBG(DBG_io, "%s: enabling XPA\n", __func__);
+ session->opt[OPT_SOURCE].cap &= ~SANE_CAP_INACTIVE;
+ }
+ else
+ {
+ DBG(DBG_io, "%s: disabling XPA\n", __func__);
+ session->opt[OPT_SOURCE].cap |= SANE_CAP_INACTIVE;
+ }
+ break;
+ default:
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "unknown gpo type");
+ }
+ }
+}
+
+
+static void write_control(Genesys_Device* dev, const Genesys_Sensor& sensor, int resolution)
+{
+ DBG_HELPER(dbg);
+ uint8_t control[4];
+ uint32_t addr = 0xdead;
+
+ /* 2300 does not write to 'control' */
+ if (dev->model->motor_id == MotorId::HP2300) {
+ return;
+ }
+
+ /* MD6471/G2410/HP2300 and XP200 read/write data from an undocumented memory area which
+ * is after the second slope table */
+ switch (sensor.optical_res)
+ {
+ case 600:
+ addr = 0x08200;
+ break;
+ case 1200:
+ addr = 0x10200;
+ break;
+ case 2400:
+ addr = 0x1fa00;
+ break;
+ default:
+ throw SaneException("failed to compute control address");
+ }
+
+ /* XP200 sets dpi, what other scanner put is unknown yet */
+ switch (dev->model->motor_id)
+ {
+ case MotorId::XP200:
+ /* we put scan's dpi, not motor one */
+ control[0] = resolution & 0xff;
+ control[1] = (resolution >> 8) & 0xff;
+ control[2] = dev->control[4];
+ control[3] = dev->control[5];
+ break;
+ case MotorId::HP3670:
+ case MotorId::HP2400:
+ case MotorId::MD_5345:
+ default:
+ control[0] = dev->control[2];
+ control[1] = dev->control[3];
+ control[2] = dev->control[4];
+ control[3] = dev->control[5];
+ break;
+ }
+
+ DBG(DBG_info, "%s: control write=0x%02x 0x%02x 0x%02x 0x%02x\n", __func__, control[0], control[1],
+ control[2], control[3]);
+ dev->interface->write_buffer(0x3c, addr, control, 4);
+}
+
+/**
+ * search for a full width black or white strip.
+ * @param dev scanner device
+ * @param forward true if searching forward, false if searching backward
+ * @param black true if searching for a black strip, false for a white strip
+ */
+void CommandSetGl646::search_strip(Genesys_Device* dev, const Genesys_Sensor& sensor, bool forward,
+ bool black) const
+{
+ DBG_HELPER(dbg);
+ (void) sensor;
+
+ Genesys_Settings settings;
+ int res = get_closest_resolution(dev->model->sensor_id, 75, 1);
+ unsigned int pass, count, found, x, y;
+ char title[80];
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, res, 1, ScanMethod::FLATBED);
+
+ /* we set up for a lowest available resolution color grey scan, full width */
+ settings.scan_method = dev->model->default_method;
+ settings.scan_mode = ScanColorMode::GRAY;
+ settings.xres = res;
+ settings.yres = res;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = static_cast<unsigned>((dev->model->x_size * res) / MM_PER_INCH);
+ settings.pixels /= calib_sensor.get_ccd_size_divisor_for_dpi(res);
+ settings.requested_pixels = settings.pixels;
+
+ /* 15 mm at at time */
+ settings.lines = static_cast<unsigned>((15 * settings.yres) / MM_PER_INCH);
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+
+ /* signals if a strip of the given color has been found */
+ found = 0;
+
+ /* detection pass done */
+ pass = 0;
+
+ std::vector<uint8_t> data;
+
+ /* loop until strip is found or maximum pass number done */
+ while (pass < 20 && !found)
+ {
+ // scan a full width strip
+ simple_scan(dev, calib_sensor, settings, true, forward, false, data, "search_strip");
+
+ if (is_testing_mode()) {
+ return;
+ }
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ std::sprintf(title, "gl646_search_strip_%s%02d.pnm", forward ? "fwd" : "bwd", pass);
+ sanei_genesys_write_pnm_file (title, data.data(), settings.depth, 1,
+ settings.pixels, settings.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 < settings.lines && !found; y++)
+ {
+ count = 0;
+ /* count of white/black pixels depending on the color searched */
+ for (x = 0; x < settings.pixels; x++)
+ {
+ /* when searching for black, detect white pixels */
+ if (black && data[y * settings.pixels + x] > 90)
+ {
+ count++;
+ }
+ /* when searching for white, detect black pixels */
+ if (!black && data[y * settings.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) / settings.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\n", __func__, settings.pixels, count);
+ }
+ }
+ }
+ 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 < settings.lines; y++)
+ {
+ /* count of white/black pixels depending on the color searched */
+ for (x = 0; x < settings.pixels; x++)
+ {
+ /* when searching for black, detect white pixels */
+ if (black && data[y * settings.pixels + x] > 60)
+ {
+ count++;
+ }
+ /* when searching for white, detect black pixels */
+ if (!black && data[y * settings.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) / (settings.pixels * settings.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\n", __func__, settings.pixels, count);
+ }
+ }
+ pass++;
+ }
+ if (found)
+ {
+ DBG(DBG_info, "%s: strip found\n", __func__);
+ }
+ else
+ {
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "%s strip not found", black ? "black" : "white");
+ }
+}
+
+void CommandSetGl646::wait_for_motor_stop(Genesys_Device* dev) const
+{
+ (void) dev;
+}
+
+void CommandSetGl646::send_shading_data(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ std::uint8_t* data, int size) const
+{
+ (void) dev;
+ (void) sensor;
+ (void) data;
+ (void) size;
+ throw SaneException("not implemented");
+}
+
+ScanSession CommandSetGl646::calculate_scan_session(const Genesys_Device* dev,
+ const Genesys_Sensor& sensor,
+ const Genesys_Settings& settings) const
+{
+ // compute distance to move
+ float move = 0;
+ // XXX STEF XXX MD5345 -> optical_ydpi, other base_ydpi => half/full step ? */
+ if (!dev->model->is_sheetfed) {
+ move = static_cast<float>(dev->model->y_offset);
+ // add tl_y to base movement
+ }
+ move += static_cast<float>(settings.tl_y);
+
+ if (move < 0) {
+ DBG(DBG_error, "%s: overriding negative move value %f\n", __func__, move);
+ move = 0;
+ }
+
+ move = static_cast<float>((move * dev->motor.optical_ydpi) / MM_PER_INCH);
+ float start = static_cast<float>(settings.tl_x);
+ if (settings.scan_method == ScanMethod::FLATBED) {
+ start += static_cast<float>(dev->model->x_offset);
+ } else {
+ start += static_cast<float>(dev->model->x_offset_ta);
+ }
+ start = static_cast<float>((start * sensor.optical_res) / MM_PER_INCH);
+
+ ScanSession session;
+ session.params.xres = settings.xres;
+ session.params.yres = settings.yres;
+ session.params.startx = static_cast<unsigned>(start);
+ session.params.starty = static_cast<unsigned>(move);
+ session.params.pixels = settings.pixels;
+ session.params.requested_pixels = settings.requested_pixels;
+ session.params.lines = settings.lines;
+ session.params.depth = settings.depth;
+ session.params.channels = settings.get_channels();
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = settings.scan_mode;
+ session.params.color_filter = settings.color_filter;
+ session.params.flags = ScanFlag::USE_XCORRECTION;
+ if (settings.scan_method == ScanMethod::TRANSPARENCY) {
+ session.params.flags |= ScanFlag::USE_XPA;
+ }
+ compute_session(dev, session, sensor);
+
+ return session;
+}
+
+void CommandSetGl646::asic_boot(Genesys_Device *dev, bool cold) const
+{
+ (void) dev;
+ (void) cold;
+ throw SaneException("not implemented");
+}
+
+std::unique_ptr<CommandSet> create_gl646_cmd_set()
+{
+ return std::unique_ptr<CommandSet>(new CommandSetGl646{});
+}
+
+} // namespace gl646
+} // namespace genesys