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authorJörg Frings-Fürst <debian@jff-webhosting.net>2019-07-31 16:59:49 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2019-07-31 16:59:49 +0200
commit1687222e1b9e74c89cafbb5910e72d8ec7bfd40f (patch)
treed78102ce30207c63e7608eeba743efd680c888dc /backend/genesys_gl646.cc
parent58912f68c2489bcee787599837447e0d64dfd61a (diff)
New upstream version 1.0.28upstream/1.0.28
Diffstat (limited to 'backend/genesys_gl646.cc')
-rw-r--r--backend/genesys_gl646.cc4911
1 files changed, 4911 insertions, 0 deletions
diff --git a/backend/genesys_gl646.cc b/backend/genesys_gl646.cc
new file mode 100644
index 0000000..b2b9f62
--- /dev/null
+++ b/backend/genesys_gl646.cc
@@ -0,0 +1,4911 @@
+/* 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 "genesys_gl646.h"
+
+#include <vector>
+
+/**
+ * reads value from gpio endpoint
+ */
+static void gl646_gpio_read(UsbDevice& 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(UsbDevice& 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(UsbDevice& 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);
+}
+
+/* Read bulk data (e.g. scanned data) */
+static SANE_Status
+gl646_bulk_read_data (Genesys_Device * dev, uint8_t addr,
+ uint8_t * data, size_t len)
+{
+ SANE_Status status = sanei_genesys_bulk_read_data(dev, addr, data, len);
+ if (status != SANE_STATUS_GOOD) {
+ return status;
+ }
+ if (dev->model->is_sheetfed == SANE_TRUE) {
+ gl646_detect_document_end (dev);
+ }
+ return status;
+}
+
+static SANE_Bool
+gl646_get_fast_feed_bit (Genesys_Register_Set * regs)
+{
+ GenesysRegister *r = NULL;
+
+ r = sanei_genesys_get_address (regs, 0x02);
+ if (r && (r->value & REG02_FASTFED))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl646_get_filter_bit (Genesys_Register_Set * regs)
+{
+ GenesysRegister *r = NULL;
+
+ r = sanei_genesys_get_address (regs, 0x04);
+ if (r && (r->value & REG04_FILTER))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl646_get_lineart_bit (Genesys_Register_Set * regs)
+{
+ GenesysRegister *r = NULL;
+
+ r = sanei_genesys_get_address (regs, 0x04);
+ if (r && (r->value & REG04_LINEART))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl646_get_bitset_bit (Genesys_Register_Set * regs)
+{
+ GenesysRegister *r = NULL;
+
+ r = sanei_genesys_get_address (regs, 0x04);
+ if (r && (r->value & REG04_BITSET))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl646_get_gain4_bit (Genesys_Register_Set * regs)
+{
+ GenesysRegister *r = NULL;
+
+ r = sanei_genesys_get_address (regs, 0x06);
+ if (r && (r->value & REG06_GAIN4))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl646_test_buffer_empty_bit (SANE_Byte val)
+{
+ if (val & REG41_BUFEMPTY)
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl646_test_motor_flag_bit (SANE_Byte val)
+{
+ if (val & REG41_MOTMFLG)
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+/**
+ * decodes and prints content of status (0x41) register
+ * @param val value read from reg41
+ */
+static void
+print_status (uint8_t val)
+{
+ char msg[80];
+
+ sprintf (msg, "%s%s%s%s%s%s%s%s",
+ val & REG41_PWRBIT ? "PWRBIT " : "",
+ val & REG41_BUFEMPTY ? "BUFEMPTY " : "",
+ val & REG41_FEEDFSH ? "FEEDFSH " : "",
+ val & REG41_SCANFSH ? "SCANFSH " : "",
+ val & REG41_HOMESNR ? "HOMESNR " : "",
+ val & REG41_LAMPSTS ? "LAMPSTS " : "",
+ val & REG41_FEBUSY ? "FEBUSY " : "",
+ val & REG41_MOTMFLG ? "MOTMFLG" : "");
+ DBG(DBG_info, "status=%s\n", msg);
+}
+
+/**
+ * start scanner's motor
+ * @param dev scanner's device
+ */
+static SANE_Status
+gl646_start_motor (Genesys_Device * dev)
+{
+ return sanei_genesys_write_register (dev, 0x0f, 0x01);
+}
+
+
+/**
+ * stop scanner's motor
+ * @param dev scanner's device
+ */
+static SANE_Status
+gl646_stop_motor (Genesys_Device * dev)
+{
+ return sanei_genesys_write_register (dev, 0x0f, 0x00);
+}
+
+
+/**
+ * find the lowest resolution for the sensor in the given mode.
+ * @param sensor id of the sensor
+ * @param color true is color mode
+ * @return the closest resolution for the sensor and mode
+ */
+static int
+get_lowest_resolution(int sensor_id, unsigned channels)
+{
+ int i, nb;
+ int dpi;
+
+ i = 0;
+ dpi = 9600;
+ nb = sizeof (sensor_master) / sizeof (Sensor_Master);
+ while (i < nb)
+ {
+ /* computes distance and keep mode if it is closer than previous */
+ if (sensor_id == sensor_master[i].sensor
+ && sensor_master[i].channels == channels)
+ {
+ if (sensor_master[i].dpi < dpi)
+ {
+ dpi = sensor_master[i].dpi;
+ }
+ }
+ i++;
+ }
+ DBG(DBG_info, "%s: %d\n", __func__, dpi);
+ return dpi;
+}
+
+/**
+ * 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 int
+get_closest_resolution(int sensor_id, int required, unsigned channels)
+{
+ int i, nb;
+ int dist, dpi;
+
+ i = 0;
+ dpi = 0;
+ dist = 9600;
+ nb = sizeof (sensor_master) / sizeof (Sensor_Master);
+ while (i < nb)
+ {
+ /* exit on perfect match */
+ if (sensor_id == sensor_master[i].sensor
+ && sensor_master[i].dpi == required
+ && sensor_master[i].channels == 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_id == sensor_master[i].sensor
+ && sensor_master[i].channels == channels)
+ {
+ if (abs (sensor_master[i].dpi - required) < dist)
+ {
+ dpi = sensor_master[i].dpi;
+ dist = abs (sensor_master[i].dpi - required);
+ }
+ }
+ i++;
+ }
+ DBG(DBG_info, "%s: closest match for %d is %d\n", __func__, required, dpi);
+ return dpi;
+}
+
+/**
+ * Computes if sensor will be set up for half ccd pixels for the given
+ * scan mode.
+ * @param sensor id of the sensor
+ * @param required required resolution
+ * @param color true is color mode
+ * @return SANE_TRUE if half ccd is used
+ */
+static SANE_Bool is_half_ccd(int sensor_id, int required, unsigned channels)
+{
+ int i, nb;
+
+ i = 0;
+ nb = sizeof (sensor_master) / sizeof (Sensor_Master);
+ while (i < nb)
+ {
+ /* exit on perfect match */
+ if (sensor_id == sensor_master[i].sensor
+ && sensor_master[i].dpi == required
+ && sensor_master[i].channels == channels)
+ {
+ DBG(DBG_io, "%s: match found for %d (half_ccd=%d)\n", __func__, required,
+ sensor_master[i].half_ccd);
+ return sensor_master[i].half_ccd;
+ }
+ i++;
+ }
+ DBG(DBG_info, "%s: failed to find match for %d dpi\n", __func__, required);
+ return SANE_FALSE;
+}
+
+/**
+ * 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(int sensor_id, int required, unsigned channels)
+{
+ int i, nb;
+
+ i = 0;
+ nb = sizeof (sensor_master) / sizeof (Sensor_Master);
+ while (i < nb)
+ {
+ /* exit on perfect match */
+ if (sensor_id == sensor_master[i].sensor
+ && sensor_master[i].dpi == required
+ && sensor_master[i].channels == channels)
+ {
+ DBG(DBG_io, "%s: match found for %d (cksel=%d)\n", __func__, required,
+ sensor_master[i].cksel);
+ return sensor_master[i].cksel;
+ }
+ i++;
+ }
+ DBG(DBG_error, "%s: failed to find match for %d dpi\n", __func__, required);
+ /* fail safe fallback */
+ return 1;
+}
+
+/**
+ * Setup register and motor tables for a scan at the
+ * given resolution and color mode. TODO try to not use any filed from
+ * the device.
+ * @param dev pointer to a struct describing the device
+ * @param regs register set to fill
+ * @param slope_table1 first motor table to fill
+ * @param slope_table2 second motor table to fill
+ * @return SANE_STATUS_GOOD if registers could be set, SANE_STATUS_INVAL if
+ * conditions can't be met.
+ * @note No harcoded SENSOR or MOTOR 'names' should be present and
+ * registers are set from settings tables and flags related
+ * to the hardware capabilities.
+ * */
+static SANE_Status
+gl646_setup_registers (Genesys_Device * dev,
+ const Genesys_Sensor& sensor,
+ Genesys_Register_Set * regs,
+ SetupParams& params,
+ uint16_t * slope_table1,
+ uint16_t * slope_table2,
+ bool xcorrection)
+{
+ int resolution = params.xres;
+ uint32_t move = params.starty;
+ uint32_t linecnt = params.lines;
+
+ uint32_t startx = 0;
+ /* pixels are allways given at full CCD optical resolution */
+ /* use detected left margin and fixed value */
+ if (xcorrection == SANE_TRUE) {
+ if (sensor.CCD_start_xoffset > 0) {
+ startx = sensor.CCD_start_xoffset;
+ } else {
+ startx = sensor.dummy_pixel;
+ }
+ } else {
+ // startx cannot be below dummy pixel value
+ startx = sensor.dummy_pixel;
+ }
+
+ /* add x coordinates : expressed in sensor max dpi */
+ startx += params.startx;
+
+ /* stagger works with odd start cordinates */
+ if (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE) {
+ startx |= 1;
+ }
+
+ uint32_t pixels = (params.pixels * sensor.optical_res) / params.xres;
+ /* special requirement for 400 dpi on 1200 dpi sensors */
+ if (params.xres == 400)
+ {
+ pixels = (pixels / 6) * 6;
+ }
+ /* TODO check for pixel width overflow */
+ uint32_t endx = startx + pixels;
+
+ SANE_Status status = SANE_STATUS_GOOD;
+ int i, nb;
+ Sensor_Master *sensor_mst = NULL;
+ Motor_Master *motor = NULL;
+ Sensor_Settings *settings = NULL;
+ GenesysRegister *r;
+ unsigned int used1, used2, vfinal;
+ unsigned int bpp; /**> bytes per pixel */
+ uint32_t z1, z2;
+ uint16_t ex, sx;
+ int stagger, words_per_line, max_shift;
+ size_t requested_buffer_size;
+ size_t read_buffer_size;
+ SANE_Bool half_ccd = SANE_FALSE;
+ SANE_Int xresolution;
+ int feedl;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+ DBG(DBG_info, "%s: startx=%d, endx=%d, linecnt=%d\n", __func__, startx, endx, linecnt);
+
+ /* x resolution is capped by sensor's capability */
+ if (resolution > sensor.optical_res)
+ {
+ xresolution = sensor.optical_res;
+ }
+ else
+ {
+ xresolution = resolution;
+ }
+
+ /* for the given resolution, search for master
+ * sensor mode setting */
+ i = 0;
+ nb = sizeof (sensor_master) / sizeof (Sensor_Master);
+ while (i < nb)
+ {
+ if (dev->model->ccd_type == sensor_master[i].sensor
+ && sensor_master[i].dpi == xresolution
+ && sensor_master[i].channels == params.channels)
+ {
+ sensor_mst = &sensor_master[i];
+ }
+ i++;
+ }
+ if (sensor_mst == NULL)
+ {
+ DBG(DBG_error, "%s: unable to find settings for sensor %d at %d dpi channels=%d\n", __func__,
+ dev->model->ccd_type, xresolution, params.channels);
+ return SANE_STATUS_INVAL;
+ }
+
+ /* 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_type == motor_master[i].motor
+ && motor_master[i].dpi == resolution
+ && motor_master[i].channels == params.channels)
+ {
+ motor = &motor_master[i];
+ }
+ i++;
+ }
+ if (motor == NULL)
+ {
+ DBG(DBG_error, "%s: unable to find settings for motor %d at %d dpi, color=%d\n", __func__,
+ dev->model->motor_type, resolution, params.channels);
+ return SANE_STATUS_INVAL;
+ }
+
+ /* now we can search for the specific sensor settings */
+ i = 0;
+ nb = sizeof (sensor_settings) / sizeof (Sensor_Settings);
+ while (i < nb)
+ {
+ if (sensor_mst->sensor == sensor_settings[i].sensor
+ && sensor_mst->cksel == sensor_settings[i].cksel)
+ {
+ settings = &sensor_settings[i];
+ }
+ i++;
+ }
+ if (settings == NULL)
+ {
+ DBG(DBG_error, "%s: unable to find settings for sensor %d with '%d' ccd timing\n", __func__,
+ sensor_mst->sensor, sensor_mst->cksel);
+ return SANE_STATUS_INVAL;
+ }
+
+ /* half_ccd if manual clock programming or dpi is half dpiset */
+ half_ccd = sensor_mst->half_ccd;
+
+ /* now apply values from settings to registers */
+ if (sensor_mst->regs_0x10_0x15 != NULL)
+ {
+ for (i = 0; i < 6; i++)
+ {
+ r = sanei_genesys_get_address (regs, 0x10 + i);
+ r->value = sensor_mst->regs_0x10_0x15[i];
+ }
+ }
+ else
+ {
+ for (i = 0; i < 6; i++)
+ {
+ r = sanei_genesys_get_address (regs, 0x10 + i);
+ r->value = 0;
+ }
+ }
+
+ for (i = 0; i < 4; i++)
+ {
+ r = sanei_genesys_get_address (regs, 0x08 + i);
+ if (half_ccd == SANE_TRUE)
+ r->value = settings->manual_0x08_0x0b[i];
+ else
+ r->value = settings->regs_0x08_0x0b[i];
+ }
+
+ for (i = 0; i < 8; i++)
+ {
+ r = sanei_genesys_get_address (regs, 0x16 + i);
+ r->value = settings->regs_0x16_0x1d[i];
+ }
+
+ for (i = 0; i < 13; i++)
+ {
+ r = sanei_genesys_get_address (regs, 0x52 + i);
+ r->value = settings->regs_0x52_0x5e[i];
+ }
+ if (half_ccd == SANE_TRUE)
+ {
+ for (i = 0; i < 7; i++)
+ {
+ r = sanei_genesys_get_address (regs, 0x52 + i);
+ r->value = settings->manual_0x52_0x58[i];
+ }
+ }
+
+ /* now generate slope tables : we are not using generate_slope_table3 yet */
+ sanei_genesys_generate_slope_table (slope_table1, motor->steps1,
+ motor->steps1 + 1, motor->vend1,
+ motor->vstart1, motor->vend1,
+ motor->steps1, motor->g1, &used1,
+ &vfinal);
+ sanei_genesys_generate_slope_table (slope_table2, motor->steps2,
+ motor->steps2 + 1, motor->vend2,
+ motor->vstart2, motor->vend2,
+ motor->steps2, motor->g2, &used2,
+ &vfinal);
+
+ /* R01 */
+ /* now setup other registers for final scan (ie with shading enabled) */
+ /* watch dog + shading + scan enable */
+ regs->find_reg(0x01).value |= REG01_DOGENB | REG01_DVDSET | REG01_SCAN;
+ if (dev->model->is_cis == SANE_TRUE)
+ regs->find_reg(0x01).value |= REG01_CISSET;
+ else
+ regs->find_reg(0x01).value &= ~REG01_CISSET;
+
+ /* if device has no calibration, don't enable shading correction */
+ if (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION)
+ {
+ regs->find_reg(0x01).value &= ~REG01_DVDSET;
+ }
+
+ regs->find_reg(0x01).value &= ~REG01_FASTMOD;
+ if (motor->fastmod)
+ regs->find_reg(0x01).value |= REG01_FASTMOD;
+
+ /* R02 */
+ /* allow moving when buffer full by default */
+ if (dev->model->is_sheetfed == SANE_FALSE)
+ dev->reg.find_reg(0x02).value &= ~REG02_ACDCDIS;
+ else
+ dev->reg.find_reg(0x02).value |= REG02_ACDCDIS;
+
+ /* setup motor power and direction */
+ sanei_genesys_set_motor_power(*regs, true);
+ regs->find_reg(0x02).value &= ~REG02_MTRREV;
+
+ /* fastfed enabled (2 motor slope tables) */
+ if (motor->fastfed)
+ regs->find_reg(0x02).value |= REG02_FASTFED;
+ else
+ regs->find_reg(0x02).value &= ~REG02_FASTFED;
+
+ /* step type */
+ regs->find_reg(0x02).value &= ~REG02_STEPSEL;
+ switch (motor->steptype)
+ {
+ case FULL_STEP:
+ break;
+ case HALF_STEP:
+ regs->find_reg(0x02).value |= 1;
+ break;
+ case QUATER_STEP:
+ regs->find_reg(0x02).value |= 2;
+ break;
+ default:
+ regs->find_reg(0x02).value |= 3;
+ break;
+ }
+
+ /* if sheetfed, no AGOHOME */
+ if (dev->model->is_sheetfed == SANE_TRUE)
+ {
+ regs->find_reg(0x02).value &= ~REG02_AGOHOME;
+ }
+ else
+ {
+ regs->find_reg(0x02).value |= REG02_AGOHOME;
+ }
+
+ /* R03 */
+ regs->find_reg(0x03).value &= ~REG03_AVEENB;
+ /* regs->find_reg(0x03).value |= REG03_AVEENB; */
+ regs->find_reg(0x03).value &= ~REG03_LAMPDOG;
+
+ /* select XPA */
+ regs->find_reg(0x03).value &= ~REG03_XPASEL;
+ if (params.flags & SCAN_FLAG_USE_XPA) {
+ regs->find_reg(0x03).value |= REG03_XPASEL;
+ }
+ regs->state.is_xpa_on = params.flags & SCAN_FLAG_USE_XPA;
+
+ /* R04 */
+ /* monochrome / color scan */
+ switch (params.depth)
+ {
+ case 1:
+ regs->find_reg(0x04).value &= ~REG04_BITSET;
+ regs->find_reg(0x04).value |= REG04_LINEART;
+ break;
+ case 8:
+ regs->find_reg(0x04).value &= ~(REG04_LINEART | REG04_BITSET);
+ break;
+ case 16:
+ regs->find_reg(0x04).value &= ~REG04_LINEART;
+ regs->find_reg(0x04).value |= REG04_BITSET;
+ break;
+ }
+
+ /* R05 */
+ regs->find_reg(0x05).value &= ~REG05_DPIHW;
+ switch (sensor.optical_res)
+ {
+ case 600:
+ regs->find_reg(0x05).value |= REG05_DPIHW_600;
+ break;
+ case 1200:
+ regs->find_reg(0x05).value |= REG05_DPIHW_1200;
+ break;
+ case 2400:
+ regs->find_reg(0x05).value |= REG05_DPIHW_2400;
+ break;
+ default:
+ regs->find_reg(0x05).value |= REG05_DPIHW;
+ }
+
+ /* gamma enable for scans */
+ if (dev->model->flags & GENESYS_FLAG_14BIT_GAMMA)
+ regs->find_reg(0x05).value |= REG05_GMM14BIT;
+
+ regs->find_reg(0x05).value &= ~REG05_GMMENB;
+
+ /* true CIS gray if needed */
+ if (dev->model->is_cis == SANE_TRUE && params.channels == 1
+ && dev->settings.true_gray)
+ {
+ regs->find_reg(0x05).value |= REG05_LEDADD;
+ }
+ else
+ {
+ regs->find_reg(0x05).value &= ~REG05_LEDADD;
+ }
+
+ /* cktoggle, ckdelay and cksel at once, cktdelay=2 => half_ccd for md5345 */
+ regs->find_reg(0x18).value = sensor_mst->r18;
+
+ /* manual CCD/2 clock programming => half_ccd for hp2300 */
+ regs->find_reg(0x1d).value = sensor_mst->r1d;
+
+ /* HP2400 1200dpi mode tuning */
+
+ if (dev->model->ccd_type == CCD_HP2400)
+ {
+ /* reset count of dummy lines to zero */
+ regs->find_reg(0x1e).value &= ~REG1E_LINESEL;
+ if (params.xres >= 1200)
+ {
+ /* there must be one dummy line */
+ regs->find_reg(0x1e).value |= 1 & REG1E_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 */
+ regs->find_reg(0x21).value = motor->steps1;
+ regs->find_reg(0x22).value = motor->fwdbwd;
+ regs->find_reg(0x23).value = motor->fwdbwd;
+ regs->find_reg(0x24).value = motor->steps1;
+
+ /* scanned area height must be enlarged by max color shift needed */
+ max_shift=sanei_genesys_compute_max_shift(dev,params.channels, params.yres, 0);
+
+ /* we adjust linecnt according to real motor dpi */
+ linecnt = (linecnt * motor->ydpi) / params.yres + max_shift;
+
+ /* at QUATER_STEP lines are 'staggered' and need correction */
+ stagger = 0;
+ if ((!half_ccd) && (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE))
+ {
+ /* for HP3670, stagger happens only at >=1200 dpi */
+ if ((dev->model->motor_type != MOTOR_HP3670 && dev->model->motor_type != MOTOR_HP2400)
+ || params.yres >= (unsigned) sensor.optical_res)
+ {
+ stagger = (4 * params.yres) / dev->motor.base_ydpi;
+ }
+ }
+ linecnt += stagger;
+
+ DBG(DBG_info, "%s : max_shift=%d, stagger=%d lines\n", __func__, max_shift, stagger);
+
+ /* 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 == SANE_TRUE)
+ {
+ sanei_genesys_set_triple(regs, REG_LINCNT, linecnt * 3);
+ linecnt *= params.channels;
+ }
+ else
+ {
+ sanei_genesys_set_triple(regs, REG_LINCNT, linecnt);
+ }
+
+ /* scanner's x coordinates are expressed in physical DPI but they must be divided by cksel */
+ sx = startx / sensor_mst->cksel;
+ ex = endx / sensor_mst->cksel;
+ if (half_ccd == SANE_TRUE)
+ {
+ sx /= 2;
+ ex /= 2;
+ }
+ sanei_genesys_set_double(regs, REG_STRPIXEL, sx);
+ sanei_genesys_set_double(regs, REG_ENDPIXEL, ex);
+ DBG(DBG_info, "%s: startx=%d, endx=%d, half_ccd=%d\n", __func__, sx, ex, half_ccd);
+
+ /* words_per_line must be computed according to the scan's resolution */
+ /* in fact, words_per_line _gives_ the actual scan resolution */
+ words_per_line = (((endx - startx) * sensor_mst->xdpi) / sensor.optical_res);
+ bpp=params.depth/8;
+ if (params.depth == 1)
+ {
+ words_per_line = (words_per_line+7)/8 ;
+ bpp=1;
+ }
+ else
+ {
+ words_per_line *= bpp;
+ }
+ dev->bpl = words_per_line;
+ words_per_line *= params.channels;
+ dev->wpl = words_per_line;
+
+ DBG(DBG_info, "%s: wpl=%d\n", __func__, words_per_line);
+ sanei_genesys_set_triple(regs, REG_MAXWD, words_per_line);
+
+ sanei_genesys_set_double(regs, REG_DPISET, sensor_mst->dpiset);
+ sanei_genesys_set_double(regs, REG_LPERIOD, sensor_mst->exposure);
+
+ /* move distance must be adjusted to take into account the extra lines
+ * read to reorder data */
+ feedl = move;
+ if (stagger + max_shift > 0 && feedl != 0)
+ {
+ if (feedl >
+ ((max_shift + stagger) * dev->motor.optical_ydpi) / motor->ydpi)
+ feedl =
+ feedl -
+ ((max_shift + stagger) * dev->motor.optical_ydpi) / motor->ydpi;
+ }
+
+ /* 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_in_steps */
+ if (feedl > 0)
+ {
+ /* take into account the distance moved during calibration */
+ /* feedl -= dev->scanhead_position_in_steps; */
+ DBG(DBG_info, "%s: initial move=%d\n", __func__, feedl);
+ DBG(DBG_info, "%s: scanhead_position_in_steps=%d\n", __func__,
+ dev->scanhead_position_in_steps);
+
+ /* TODO clean up this when I'll fully understand.
+ * for now, special casing each motor */
+ switch (dev->model->motor_type)
+ {
+ case MOTOR_5345:
+ switch (motor->ydpi)
+ {
+ 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 MOTOR_HP2300:
+ switch (motor->ydpi)
+ {
+ 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 MOTOR_HP2400:
+ switch (motor->ydpi)
+ {
+ 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:
+ if (motor->fastfed)
+ {
+ feedl =
+ feedl - 2 * motor->steps2 -
+ (motor->steps1 >> motor->steptype);
+ }
+ else
+ {
+ feedl = feedl - (motor->steps1 >> motor->steptype);
+ }
+ break;
+ }
+ /* security */
+ if (feedl < 0)
+ feedl = 0;
+ }
+
+ DBG(DBG_info, "%s: final move=%d\n", __func__, feedl);
+ sanei_genesys_set_triple(regs, REG_FEEDL, feedl);
+
+ regs->find_reg(0x65).value = motor->mtrpwm;
+
+ sanei_genesys_calculate_zmode2 (regs->find_reg(0x02).value & REG02_FASTFED,
+ sensor_mst->exposure,
+ slope_table1,
+ motor->steps1,
+ move, motor->fwdbwd, &z1, &z2);
+
+ /* no z1/z2 for sheetfed scanners */
+ if (dev->model->is_sheetfed == SANE_TRUE)
+ {
+ z1 = 0;
+ z2 = 0;
+ }
+ sanei_genesys_set_double(regs, REG_Z1MOD, z1);
+ sanei_genesys_set_double(regs, REG_Z2MOD, z2);
+ regs->find_reg(0x6b).value = motor->steps2;
+ regs->find_reg(0x6c).value =
+ (regs->find_reg(0x6c).value & REG6C_TGTIME) | ((z1 >> 13) & 0x38) | ((z2 >> 16)
+ & 0x07);
+
+ RIE (write_control (dev, sensor, xresolution));
+
+ /* setup analog frontend */
+ RIE (gl646_set_fe(dev, sensor, AFE_SET, xresolution));
+
+ /* now we're done with registers setup values used by data transfer */
+ /* we setup values needed for the data transfer */
+
+ /* we must use a round number of words_per_line */
+ requested_buffer_size = 8 * words_per_line;
+ read_buffer_size =
+ 2 * requested_buffer_size +
+ ((max_shift + stagger) * params.pixels * params.channels * params.depth) / 8;
+
+ dev->read_buffer.clear();
+ dev->read_buffer.alloc(read_buffer_size);
+
+ dev->lines_buffer.clear();
+ dev->lines_buffer.alloc(read_buffer_size);
+
+ dev->shrink_buffer.clear();
+ dev->shrink_buffer.alloc(requested_buffer_size);
+
+ dev->out_buffer.clear();
+ dev->out_buffer.alloc(8 * params.pixels * params.channels * bpp);
+
+ /* scan bytes to read */
+ dev->read_bytes_left = words_per_line * linecnt;
+
+ DBG(DBG_info, "%s: physical bytes to read = %lu\n", __func__, (u_long) dev->read_bytes_left);
+ dev->read_active = SANE_TRUE;
+
+ dev->current_setup.params = params;
+ dev->current_setup.pixels =
+ ((endx - startx) * sensor_mst->xdpi) / sensor.optical_res;
+ dev->current_setup.lines = linecnt;
+ dev->current_setup.depth = params.depth;
+ dev->current_setup.channels = params.channels;
+ dev->current_setup.exposure_time = sensor_mst->exposure;
+ dev->current_setup.xres = sensor_mst->xdpi;
+ dev->current_setup.yres = motor->ydpi;
+ dev->current_setup.ccd_size_divisor = half_ccd ? 2 : 1;
+ dev->current_setup.stagger = stagger;
+ dev->current_setup.max_shift = max_shift + stagger;
+
+ /* 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
+ */
+ dev->total_bytes_read = 0;
+ if (params.depth == 1) {
+ dev->total_bytes_to_read = ((params.pixels * params.lines) / 8 +
+ (((params.pixels * params.lines) % 8) ? 1 : 0)) * params.channels;
+ } else {
+ dev->total_bytes_to_read = params.pixels * params.lines * params.channels * bpp;
+ }
+
+ /* select color filter based on settings */
+ regs->find_reg(0x04).value &= ~REG04_FILTER;
+ if (params.channels == 1) {
+ switch (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;
+ }
+ }
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return SANE_STATUS_GOOD;
+}
+
+
+/** copy sensor specific settings */
+/* *dev : device infos
+ *regs : regiters to be set
+ extended : do extended set up
+ half_ccd: 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_regs) {
+ regs->set8(reg_setting.address, reg_setting.value);
+ }
+ // FIXME: all other drivers don't set exposure here
+ sanei_genesys_set_exposure(*regs, sensor.exposure);
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+}
+
+/** Test if the ASIC works
+ */
+static SANE_Status
+gl646_asic_test (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ uint8_t val;
+ size_t size, verify_size;
+ unsigned int i;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ /* set and read exposure time, compare if it's the same */
+ status = sanei_genesys_write_register (dev, 0x38, 0xde);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write register: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status = sanei_genesys_write_register (dev, 0x39, 0xad);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write register: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status = sanei_genesys_read_register (dev, 0x4e, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read register: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ if (val != 0xde) /* value of register 0x38 */
+ {
+ DBG(DBG_error, "%s: register contains invalid value\n", __func__);
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ status = sanei_genesys_read_register (dev, 0x4f, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read register: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ if (val != 0xad) /* value of register 0x39 */
+ {
+ DBG(DBG_error, "%s: register contains invalid value\n", __func__);
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ /* ram test: */
+ size = 0x40000;
+ verify_size = size + 0x80;
+ /* todo: looks like the read size must be a multiple of 128?
+ otherwise the read doesn't succeed the second time after the scanner has
+ been plugged in. Very strange. */
+
+ std::vector<uint8_t> data(size);
+ std::vector<uint8_t> verify_data(verify_size);
+
+ for (i = 0; i < (size - 1); i += 2)
+ {
+ data[i] = i / 512;
+ data[i + 1] = (i / 2) % 256;
+ }
+
+ status = sanei_genesys_set_buffer_address (dev, 0x0000);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set buffer address: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status = sanei_genesys_bulk_write_data(dev, 0x3c, data.data(), size);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to bulk write data: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status = sanei_genesys_set_buffer_address (dev, 0x0000);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set buffer address: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status =
+ gl646_bulk_read_data (dev, 0x45, verify_data.data(), verify_size);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to bulk read data: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* i + 2 is needed as the changed address goes into effect only after one
+ data word is sent. */
+ for (i = 0; i < size; i++)
+ {
+ if (verify_data[i + 2] != data[i])
+ {
+ DBG(DBG_error, "%s: data verification error\n", __func__);
+ return SANE_STATUS_IO_ERROR;
+ }
+ }
+
+ DBG(DBG_info, "%s: end\n", __func__);
+
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * 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_type == MOTOR_5345)
+ dev->reg.find_reg(0x02).value |= 0x01; /* half-step */
+ switch (dev->model->motor_type)
+ {
+ case MOTOR_5345:
+ dev->reg.find_reg(0x02).value |= 0x01; /* half-step */
+ break;
+ case MOTOR_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->dac_type)
+ {
+ case DAC_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 */
+ switch (sensor.optical_res)
+ {
+ case 600:
+ dev->reg.find_reg(0x05).value |= REG05_DPIHW_600;
+ break;
+ case 1200:
+ dev->reg.find_reg(0x05).value |= REG05_DPIHW_1200;
+ break;
+ case 2400:
+ dev->reg.find_reg(0x05).value |= REG05_DPIHW_2400;
+ break;
+ default:
+ dev->reg.find_reg(0x05).value |= REG05_DPIHW;
+ break;
+ }
+ if (dev->model->flags & GENESYS_FLAG_14BIT_GAMMA)
+ dev->reg.find_reg(0x05).value |= REG05_GMM14BIT;
+ if (dev->model->dac_type == DAC_AD_XP200)
+ dev->reg.find_reg(0x05).value |= 0x01; /* 12 clocks/pixel */
+
+ if (dev->model->ccd_type == 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->ccd_type)
+ {
+ case 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 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 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 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_type == MOTOR_5345)
+ dev->reg.find_reg(0x65).value = 0x02; /* PWM duty cycle for table one motor phase (63 = max) */
+ dev->reg.find_reg(0x66).value = dev->gpo.value[0];
+ dev->reg.find_reg(0x67).value = dev->gpo.value[1];
+ dev->reg.find_reg(0x68).value = dev->gpo.enable[0];
+ dev->reg.find_reg(0x69).value = dev->gpo.enable[1];
+
+ switch (dev->model->motor_type)
+ {
+ case MOTOR_HP2300:
+ case MOTOR_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 MOTOR_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 MOTOR_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 MOTOR_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 SANE_Status
+gl646_send_slope_table (Genesys_Device * dev, int table_nr,
+ uint16_t * slope_table, int steps)
+{
+ int dpihw;
+ int start_address;
+ SANE_Status status = SANE_STATUS_GOOD;
+
+ DBG(DBG_proc, "%s (table_nr = %d, steps = %d)=%d .. %d\n", __func__, table_nr, steps,
+ slope_table[0], slope_table[steps - 1]);
+
+ 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 /* reserved */
+ return SANE_STATUS_INVAL;
+
+ 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;
+ }
+
+ status =
+ sanei_genesys_set_buffer_address (dev, start_address + table_nr * 0x100);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set buffer address: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status = sanei_genesys_bulk_write_data(dev, 0x3c, table.data(), steps * 2);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to send slope table: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+}
+
+/* Set values of Analog Device type frontend */
+static SANE_Status
+gl646_set_ad_fe (Genesys_Device * dev, uint8_t set)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ int i;
+
+ DBG(DBG_proc, "%s(): start\n", __func__);
+ if (set == AFE_INIT)
+ {
+ DBG(DBG_proc, "%s(): setting DAC %u\n", __func__, dev->model->dac_type);
+
+ dev->frontend = dev->frontend_initial;
+
+ /* write them to analog frontend */
+ status = sanei_genesys_fe_write_data(dev, 0x00, dev->frontend.regs.get_value(0x00));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write reg0: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ status = sanei_genesys_fe_write_data(dev, 0x01, dev->frontend.regs.get_value(0x01));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write reg1: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ }
+ if (set == AFE_SET)
+ {
+ for (i = 0; i < 3; i++)
+ {
+ status = sanei_genesys_fe_write_data(dev, 0x02 + i, dev->frontend.get_gain(i));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write gain %d: %s\n", __func__, i,
+ sane_strstatus(status));
+ return status;
+ }
+ }
+ for (i = 0; i < 3; i++)
+ {
+ status = sanei_genesys_fe_write_data(dev, 0x05 + i, dev->frontend.get_offset(i));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write offset %d: %s\n", __func__, i,
+ sane_strstatus(status));
+ return status;
+ }
+ }
+ }
+ /*
+ if (set == AFE_POWER_SAVE)
+ {
+ status =
+ sanei_genesys_fe_write_data (dev, 0x00, dev->frontend.reg[0] | 0x04);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write reg0: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ } */
+ DBG(DBG_proc, "%s(): end\n", __func__);
+
+ return status;
+}
+
+/** 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
+ * @return SANE_STATUS_GOOD if evrithing OK
+ */
+static SANE_Status
+gl646_wm_hp3670(Genesys_Device * dev, const Genesys_Sensor& sensor, uint8_t set, int dpi)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ int i;
+
+ DBGSTART;
+ switch (set)
+ {
+ case AFE_INIT:
+ status = sanei_genesys_fe_write_data (dev, 0x04, 0x80);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: reset failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ sanei_genesys_sleep_ms(200);
+ RIE (sanei_genesys_write_register (dev, 0x50, 0x00));
+ dev->frontend = dev->frontend_initial;
+ status = sanei_genesys_fe_write_data(dev, 0x01, dev->frontend.regs.get_value(0x01));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg1 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ status = sanei_genesys_fe_write_data(dev, 0x02, dev->frontend.regs.get_value(0x02));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg2 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ gl646_gpio_output_enable(dev->usb_dev, 0x07);
+ break;
+ case AFE_POWER_SAVE:
+ status = sanei_genesys_fe_write_data (dev, 0x01, 0x06);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg1 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ status = sanei_genesys_fe_write_data (dev, 0x06, 0x0f);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg6 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ return status;
+ 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 DAC_WOLFSON_HP3670.
+ * DAC_WOLFSON_HP2400 in 1200 dpi mode works well with
+ * fe_reg_0x03 set to 0x32 or 0x12 but not to 0x02 */
+ i = 0x12;
+ }
+ status = sanei_genesys_fe_write_data (dev, 0x03, i);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg3 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ /* offset and sign (or msb/lsb ?) */
+ for (i = 0; i < 3; i++)
+ {
+ status =
+ sanei_genesys_fe_write_data(dev, 0x20 + i, dev->frontend.get_offset(i));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing offset%d failed: %s\n", __func__, i,
+ sane_strstatus (status));
+ return status;
+ }
+ status = sanei_genesys_fe_write_data(dev, 0x24 + i,
+ dev->frontend.regs.get_value(0x24 + i)); /* MSB/LSB ? */
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing sign%d failed: %s\n", __func__, i,
+ sane_strstatus(status));
+ return status;
+ }
+ }
+
+ /* gain */
+ for (i = 0; i < 3; i++)
+ {
+ status =
+ sanei_genesys_fe_write_data(dev, 0x28 + i, dev->frontend.get_gain(i));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing gain%d failed: %s\n", __func__, i,
+ sane_strstatus(status));
+ return status;
+ }
+ }
+ }
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/** Set values of analog frontend
+ * @param dev device to set
+ * @param set action to execute
+ * @param dpi dpi to setup the AFE
+ * @return error or SANE_STATUS_GOOD */
+static SANE_Status
+gl646_set_fe(Genesys_Device * dev, const Genesys_Sensor& sensor, uint8_t set, int dpi)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ int i;
+ uint8_t val;
+
+ DBG(DBG_proc, "%s (%s,%d)\n", __func__, set == AFE_INIT ? "init" : set == AFE_SET ? "set" : set ==
+ AFE_POWER_SAVE ? "powersave" : "huh?", dpi);
+
+ /* Analog Device type frontend */
+ if ((dev->reg.find_reg(0x04).value & REG04_FESET) == 0x02)
+ return gl646_set_ad_fe (dev, set);
+
+ /* Wolfson type frontend */
+ if ((dev->reg.find_reg(0x04).value & REG04_FESET) != 0x03)
+ {
+ DBG(DBG_proc, "%s(): unsupported frontend type %d\n", __func__,
+ dev->reg.find_reg(0x04).value & REG04_FESET);
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ /* per frontend function to keep code clean */
+ switch (dev->model->dac_type)
+ {
+ case DAC_WOLFSON_HP3670:
+ case DAC_WOLFSON_HP2400:
+ return gl646_wm_hp3670(dev, sensor, set, dpi);
+ break;
+ 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__, dev->model->dac_type);
+ dev->frontend = dev->frontend_initial;
+
+ /* reset only done on init */
+ status = sanei_genesys_fe_write_data (dev, 0x04, 0x80);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: init fe failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* enable GPIO for some models */
+ if (dev->model->ccd_type == CCD_HP2300)
+ {
+ val = 0x07;
+ gl646_gpio_output_enable(dev->usb_dev, val);
+ }
+ return status;
+ }
+
+ /* set fontend to power saving mode */
+ if (set == AFE_POWER_SAVE)
+ {
+ status = sanei_genesys_fe_write_data (dev, 0x01, 0x02);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing data failed: %s\n", __func__, sane_strstatus(status));
+ }
+ return status;
+ }
+
+ /* here starts AFE_SET */
+ /* TODO : base this test on cfg reg3 or a CCD family flag to be created */
+ /* if (dev->model->ccd_type != CCD_HP2300
+ && dev->model->ccd_type != CCD_HP3670
+ && dev->model->ccd_type != CCD_HP2400) */
+ {
+ status = sanei_genesys_fe_write_data(dev, 0x00, dev->frontend.regs.get_value(0x00));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg0 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ status = sanei_genesys_fe_write_data(dev, 0x02, dev->frontend.regs.get_value(0x02));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg2 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ }
+
+ /* start with reg3 */
+ status = sanei_genesys_fe_write_data(dev, 0x03, dev->frontend.regs.get_value(0x03));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg3 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ switch (dev->model->ccd_type)
+ {
+ default:
+ for (i = 0; i < 3; i++)
+ {
+ status =
+ sanei_genesys_fe_write_data(dev, 0x24 + i,
+ dev->frontend.regs.get_value(0x24 + i));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing sign[%d] failed: %s\n", __func__, i,
+ sane_strstatus(status));
+ return status;
+ }
+
+ status =
+ sanei_genesys_fe_write_data(dev, 0x28 + i, dev->frontend.get_gain(i));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing gain[%d] failed: %s\n", __func__, i,
+ sane_strstatus(status));
+ return status;
+ }
+
+ status =
+ sanei_genesys_fe_write_data(dev, 0x20 + i, dev->frontend.get_offset(i));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing offset[%d] failed: %s\n", __func__, i,
+ sane_strstatus(status));
+ return status;
+ }
+ }
+ break;
+ /* just can't have it to work ....
+ case CCD_HP2300:
+ case CCD_HP2400:
+ case CCD_HP3670:
+
+ status =
+ sanei_genesys_fe_write_data(dev, 0x23, dev->frontend.get_offset(1));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing offset[1] failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ status = sanei_genesys_fe_write_data(dev, 0x28, dev->frontend.get_gain(1));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing gain[1] failed: %s\n", __func__, sane_strstatus (status));
+ return status;
+ }
+ break; */
+ }
+
+ /* end with reg1 */
+ status = sanei_genesys_fe_write_data(dev, 0x01, dev->frontend.regs.get_value(0x01));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: writing reg1 failed: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+
+ return SANE_STATUS_GOOD;
+}
+
+/** 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
+ * @return error or SANE_STATUS_GOOD */
+static SANE_Status
+gl646_public_set_fe (Genesys_Device * dev, const Genesys_Sensor& sensor, uint8_t set)
+{
+ return 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 SANE_TRUE to enable power saving, SANE_FALSE to leave it
+ * @return allways SANE_STATUS_GOOD
+ */
+static
+SANE_Status
+gl646_save_power (Genesys_Device * dev, SANE_Bool enable)
+{
+
+ DBGSTART;
+ DBG(DBG_info, "%s: enable = %d\n", __func__, 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);
+ }
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+static SANE_Status
+gl646_set_powersaving (Genesys_Device * dev, int delay /* in minutes */ )
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ Genesys_Register_Set local_reg(Genesys_Register_Set::SEQUENTIAL);
+ int rate, exposure_time, tgtime, time;
+
+ DBG(DBG_proc, "%s (delay = %d)\n", __func__, delay);
+
+ 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) & ~REG05_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 =
+ (uint32_t) (time * 32000.0 /
+ (24.0 * 64.0 * (local_reg.get8(0x03) & REG03_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;
+
+ status = sanei_genesys_bulk_write_register(dev, local_reg);
+ if (status != SANE_STATUS_GOOD) {
+ DBG(DBG_error, "%s: Failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+}
+
+
+/**
+ * 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
+ */
+static SANE_Status
+gl646_load_document (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+
+ // FIXME: sequential not really needed in this case
+ Genesys_Register_Set regs(Genesys_Register_Set::SEQUENTIAL);
+ unsigned int used, vfinal, count;
+ uint16_t slope_table[255];
+ uint8_t val;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ /* no need to load document is flatbed scanner */
+ if (dev->model->is_sheetfed == SANE_FALSE)
+ {
+ DBG(DBG_proc, "%s: nothing to load\n", __func__);
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return SANE_STATUS_GOOD;
+ }
+
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read status: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* HOMSNR is set if a document is inserted */
+ if ((val & REG41_HOMESNR))
+ {
+ /* if no document, waits for a paper event to start loading */
+ /* with a 60 seconde minutes timeout */
+ count = 0;
+ do
+ {
+ gl646_gpio_read(dev->usb_dev, &val);
+
+ DBG(DBG_info, "%s: GPIO=0x%02x\n", __func__, val);
+ if ((val & 0x04) != 0x04)
+ {
+ DBG(DBG_warn, "%s: no paper detected\n", __func__);
+ }
+ sanei_genesys_sleep_ms(200);
+ count++;
+ }
+ while (((val & 0x04) != 0x04) && (count < 300)); /* 1 min time out */
+ if (count == 300)
+ {
+ DBG(DBG_error, "%s: timeout waiting for document\n", __func__);
+ return SANE_STATUS_NO_DOCS;
+ }
+ }
+
+ /* 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 */
+ sanei_genesys_generate_slope_table (slope_table,
+ 50,
+ 51,
+ 2400,
+ 6000, 2400, 50, 0.25, &used, &vfinal);
+/* document loading:
+ * send regs
+ * start motor
+ * wait e1 status to become e0
+ */
+ status = gl646_send_slope_table (dev, 1, slope_table, 50);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to send slope table 1: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ status = sanei_genesys_bulk_write_register(dev, regs);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status = gl646_start_motor (dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status));
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ count = 0;
+ do
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read status: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ sanei_genesys_sleep_ms(200);
+ count++;
+ }
+ while ((val & REG41_MOTMFLG) && (count < 300));
+ if (count == 300)
+ {
+ DBG(DBG_error, "%s: can't load document\n", __func__);
+ return SANE_STATUS_JAMMED;
+ }
+
+ /* when loading OK, document is here */
+ dev->document = SANE_TRUE;
+
+ /* set up to idle */
+ regs.set8(0x02, 0x71);
+ regs.set8(0x3f, 1);
+ regs.set8(0x6b, 8);
+ status = sanei_genesys_bulk_write_register(dev, regs);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to bulk write idle registers: %s\n", __func__,
+ sane_strstatus(status));
+ return status;
+ }
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+
+ return status;
+}
+
+/**
+ * detects end of document and adjust current scan
+ * to take it into account
+ * used by sheetfed scanners
+ */
+static SANE_Status
+gl646_detect_document_end (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ uint8_t val, gpio;
+ unsigned int bytes_left, lines;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ /* test for document presence */
+ RIE (sanei_genesys_get_status (dev, &val));
+ if (DBG_LEVEL > DBG_info)
+ {
+ print_status (val);
+ }
+ gl646_gpio_read(dev->usb_dev, &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 == SANE_TRUE) && (gpio & 0x04)
+ && (dev->total_bytes_read > 0))
+ {
+ DBG(DBG_info, "%s: no more document\n", __func__);
+ dev->document = SANE_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=%lu\n", __func__, (u_long) dev->total_bytes_to_read);
+ DBG(DBG_io, "%s: total_bytes_read =%lu\n", __func__, (u_long) dev->total_bytes_read);
+ DBG(DBG_io, "%s: read_bytes_left =%lu\n", __func__, (u_long) dev->read_bytes_left);
+
+ /* amount of data available from scanner is what to scan */
+ status = sanei_genesys_read_valid_words (dev, &bytes_left);
+
+ /* we add the number of lines needed to read the last part of the document in */
+ lines =
+ (SANE_UNFIX (dev->model->y_offset) * dev->current_setup.yres) /
+ MM_PER_INCH;
+ DBG(DBG_io, "%s: adding %d line to flush\n", __func__, lines);
+ bytes_left += lines * dev->wpl;
+ if (dev->current_setup.depth > 8)
+ {
+ bytes_left = 2 * bytes_left;
+ }
+ if (dev->current_setup.channels > 1)
+ {
+ bytes_left = 3 * bytes_left;
+ }
+ if (bytes_left < dev->read_bytes_left)
+ {
+ dev->total_bytes_to_read = dev->total_bytes_read + bytes_left;
+ dev->read_bytes_left = bytes_left;
+ }
+ DBG(DBG_io, "%s: total_bytes_to_read=%lu\n", __func__, (u_long) dev->total_bytes_to_read);
+ DBG(DBG_io, "%s: total_bytes_read =%lu\n", __func__, (u_long) dev->total_bytes_read);
+ DBG(DBG_io, "%s: read_bytes_left =%lu\n", __func__, (u_long) dev->read_bytes_left);
+ }
+ DBG(DBG_proc, "%s: end\n", __func__);
+
+ return status;
+}
+
+/**
+ * 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
+ */
+static SANE_Status
+gl646_eject_document (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+
+ // FIXME: SEQUENTIAL not really needed in this case
+ Genesys_Register_Set regs((Genesys_Register_Set::SEQUENTIAL));
+ unsigned int used, vfinal, count;
+ uint16_t slope_table[255];
+ uint8_t gpio, state;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ /* at the end there will be noe more document */
+ dev->document = SANE_FALSE;
+
+ // first check for document event
+ gl646_gpio_read(dev->usb_dev, &gpio);
+
+ DBG(DBG_info, "%s: GPIO=0x%02x\n", __func__, gpio);
+
+ /* test status : paper event + HOMESNR -> no more doc ? */
+ status = sanei_genesys_get_status (dev, &state);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read status: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ DBG(DBG_info, "%s: state=0x%02x\n", __func__, state);
+ if (DBG_LEVEL > DBG_info)
+ {
+ print_status (state);
+ }
+
+ /* HOMSNR=0 if no document inserted */
+ if ((state & REG41_HOMESNR) != 0)
+ {
+ dev->document = SANE_FALSE;
+ DBG(DBG_info, "%s: no more document to eject\n", __func__);
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+ }
+
+ /* there is a document inserted, eject it */
+ status = sanei_genesys_write_register (dev, 0x01, 0xb0);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write register: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* wait for motor to stop */
+ do
+ {
+ sanei_genesys_sleep_ms(200);
+ status = sanei_genesys_get_status (dev, &state);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read status: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ }
+ while (state & REG41_MOTMFLG);
+
+ /* 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 */
+ sanei_genesys_generate_slope_table (slope_table,
+ 60,
+ 61,
+ 1600,
+ 10000, 1600, 60, 0.25, &used, &vfinal);
+/* document eject:
+ * send regs
+ * start motor
+ * wait c1 status to become c8 : HOMESNR and ~MOTFLAG
+ */
+ status = gl646_send_slope_table (dev, 1, slope_table, 60);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to send slope table 1: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ status = sanei_genesys_bulk_write_register(dev, regs);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status = gl646_start_motor (dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus (status));
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ /* loop until paper sensor tells paper is out, and till motor is running */
+ /* use a 30 timeout */
+ count = 0;
+ do
+ {
+ status = sanei_genesys_get_status (dev, &state);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read status: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ print_status (state);
+ sanei_genesys_sleep_ms(200);
+ count++;
+ }
+ while (((state & REG41_HOMESNR) == 0) && (count < 150));
+
+ // read GPIO on exit
+ gl646_gpio_read(dev->usb_dev, &gpio);
+
+ DBG(DBG_info, "%s: GPIO=0x%02x\n", __func__, gpio);
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+}
+
+/* Send the low-level scan command */
+static SANE_Status
+gl646_begin_scan (Genesys_Device * dev, const Genesys_Sensor& sensor, Genesys_Register_Set * reg,
+ SANE_Bool start_motor)
+{
+ (void) sensor;
+ SANE_Status status = SANE_STATUS_GOOD;
+ // FIXME: SEQUENTIAL not really needed in this case
+ Genesys_Register_Set local_reg(Genesys_Register_Set::SEQUENTIAL);
+
+ DBG(DBG_proc, "%s\n", __func__);
+
+ local_reg.init_reg(0x03, sanei_genesys_read_reg_from_set(reg, 0x03));
+ local_reg.init_reg(0x01, sanei_genesys_read_reg_from_set(reg, 0x01) | REG01_SCAN); /* set scan bit */
+
+ if (start_motor) {
+ local_reg.init_reg(0x0f, 0x01);
+ } else {
+ local_reg.init_reg(0x0f, 0x00); // do not start motor yet
+ }
+
+ status = sanei_genesys_bulk_write_register(dev, local_reg);
+
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+
+ return status;
+}
+
+
+/* Send the stop scan command */
+static SANE_Status
+end_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
+ SANE_Bool check_stop, SANE_Bool eject)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ int i = 0;
+ uint8_t val, scanfsh = 0;
+
+ DBG(DBG_proc, "%s (check_stop = %d, eject = %d)\n", __func__, check_stop, eject);
+
+ /* we need to compute scanfsh before cancelling scan */
+ if (dev->model->is_sheetfed == SANE_TRUE)
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read register: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ if (val & REG41_SCANFSH)
+ scanfsh = 1;
+ if (DBG_LEVEL > DBG_io2)
+ {
+ print_status (val);
+ }
+ }
+
+ /* ends scan */
+ val = sanei_genesys_read_reg_from_set (reg, 0x01);
+ val &= ~REG01_SCAN;
+ sanei_genesys_set_reg_from_set (reg, 0x01, val);
+ status = sanei_genesys_write_register (dev, 0x01, val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to write register 01: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* for sheetfed scanners, we may have to eject document */
+ if (dev->model->is_sheetfed == SANE_TRUE)
+ {
+ if (eject == SANE_TRUE && dev->document == SANE_TRUE)
+ {
+ status = gl646_eject_document (dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to eject document\n", __func__);
+ return status;
+ }
+ }
+ if (check_stop)
+ {
+ for (i = 0; i < 30; i++) /* do not wait longer than wait 3 seconds */
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read register: %s\n", __func__,
+ sane_strstatus(status));
+ return status;
+ }
+ if (val & REG41_SCANFSH)
+ scanfsh = 1;
+ if (DBG_LEVEL > DBG_io2)
+ {
+ print_status (val);
+ }
+
+ if (!(val & REG41_MOTMFLG) && (val & REG41_FEEDFSH) && scanfsh)
+ {
+ DBG(DBG_proc, "%s: scanfeed finished\n", __func__);
+ break; /* leave for loop */
+ }
+
+ sanei_genesys_sleep_ms(100);
+ }
+ }
+ }
+ else /* flat bed scanners */
+ {
+ if (check_stop)
+ {
+ for (i = 0; i < 300; i++) /* do not wait longer than wait 30 seconds */
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read register: %s\n", __func__,
+ sane_strstatus(status));
+ return status;
+ }
+ if (val & REG41_SCANFSH)
+ scanfsh = 1;
+ if (DBG_LEVEL > DBG_io)
+ {
+ print_status (val);
+ }
+
+ if (!(val & REG41_MOTMFLG) && (val & REG41_FEEDFSH) && scanfsh)
+ {
+ DBG(DBG_proc, "%s: scanfeed finished\n", __func__);
+ break; /* leave while loop */
+ }
+
+ if ((!(val & REG41_MOTMFLG)) && (val & REG41_HOMESNR))
+ {
+ DBG(DBG_proc, "%s: head at home\n", __func__);
+ break; /* leave while loop */
+ }
+
+ sanei_genesys_sleep_ms(100);
+ }
+ }
+ }
+
+ DBG(DBG_proc, "%s: end (i=%u)\n", __func__, i);
+
+ return status;
+}
+
+/* Send the stop scan command */
+static SANE_Status
+gl646_end_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
+ SANE_Bool check_stop)
+{
+ return end_scan (dev, reg, check_stop, SANE_FALSE);
+}
+
+/**
+ * parks head
+ * @param dev scanner's device
+ * @param wait_until_home true if the function waits until head parked
+ */
+static
+SANE_Status
+gl646_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ Genesys_Settings settings;
+ uint8_t val;
+ int i;
+ int loop = 0;
+
+ DBG(DBG_proc, "%s: start , wait_until_home = %d\n", __func__, wait_until_home);
+
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ if (DBG_LEVEL > DBG_io)
+ {
+ print_status (val);
+ }
+
+ dev->scanhead_position_in_steps = 0;
+
+ if (val & REG41_HOMESNR) /* is sensor at home? */
+ {
+ DBG(DBG_info, "%s: end since already at home\n", __func__);
+ return SANE_STATUS_GOOD;
+ }
+
+ /* stop motor if needed */
+ if (val & REG41_MOTMFLG)
+ {
+ status = gl646_stop_motor (dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to stop motor: %s\n", __func__, sane_strstatus(status));
+ return SANE_STATUS_IO_ERROR;
+ }
+ sanei_genesys_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__);
+ val = REG41_MOTMFLG;
+ for (i = 400; i > 0 && (val & REG41_MOTMFLG); i--) /* do not wait longer than 40 seconds, count down to get i = 0 when busy */
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: Failed to read home sensor & motor status: %s\n", __func__,
+ sane_strstatus(status));
+ return status;
+ }
+ if (((val & (REG41_MOTMFLG | REG41_HOMESNR)) == REG41_HOMESNR)) /* at home and motor is off */
+ {
+ DBG(DBG_info, "%s: already at home and not moving\n", __func__);
+ return SANE_STATUS_GOOD;
+ }
+ sanei_genesys_sleep_ms(100);
+ }
+
+ if (!i) /* the loop counted down to 0, scanner still is busy */
+ {
+ DBG(DBG_error, "%s: motor is still on: device busy\n", __func__);
+ return SANE_STATUS_DEVICE_BUSY;
+ }
+
+ /* setup for a backward scan of 65535 steps, with no actual data reading */
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = get_lowest_resolution(dev->model->ccd_type, 1);
+ settings.yres = settings.xres;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = 600;
+ settings.lines = 1;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ const auto& sensor = sanei_genesys_find_sensor(dev, settings.xres);
+
+ status = setup_for_scan(dev, sensor, &dev->reg, settings, SANE_TRUE, SANE_TRUE, SANE_TRUE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to setup for scan: %s\n", __func__, sane_strstatus(status));
+ DBGCOMPLETED;
+ return status;
+ }
+
+ /* backward , no actual data scanned TODO more setup flags to avoid this register manipulations ? */
+ dev->reg.find_reg(0x02).value |= REG02_MTRREV;
+ dev->reg.find_reg(0x01).value &= ~REG01_SCAN;
+ sanei_genesys_set_triple(&dev->reg, REG_FEEDL, 65535);
+
+ /* sets frontend */
+ status = gl646_set_fe(dev, sensor, AFE_SET, settings.xres);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set frontend: %s\n", __func__, sane_strstatus(status));
+ DBGCOMPLETED;
+ return status;
+ }
+
+ /* write scan registers */
+ try {
+ status = sanei_genesys_bulk_write_register(dev, dev->reg);
+ } catch (...) {
+ DBG(DBG_error, "%s: failed to bulk write registers\n", __func__);
+ }
+ if (status != SANE_STATUS_GOOD)
+ DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
+
+ /* registers are restored to an iddl state, give up if no head to park */
+ if (dev->model->is_sheetfed == SANE_TRUE)
+ {
+ DBG(DBG_proc, "%s: end \n", __func__);
+ return SANE_STATUS_GOOD;
+ }
+
+ /* starts scan */
+ status = gl646_begin_scan(dev, sensor, &dev->reg, SANE_TRUE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to begin scan: \n", __func__);
+ return status;
+ }
+
+ /* loop until head parked */
+ if (wait_until_home)
+ {
+ while (loop < 300) /* do not wait longer then 30 seconds */
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: Failed to read home sensor: %s\n", __func__,
+ sane_strstatus(status));
+ return status;
+ }
+
+ if (val & 0x08) /* home sensor */
+ {
+ DBG(DBG_info, "%s: reached home position\n", __func__);
+ DBG(DBG_proc, "%s: end\n", __func__);
+ sanei_genesys_sleep_ms(500);
+ return SANE_STATUS_GOOD;
+ }
+ sanei_genesys_sleep_ms(100);
+ ++loop;
+ }
+
+ /* when we come here then the scanner needed too much time for this, so we better stop the motor */
+ gl646_stop_motor (dev);
+ end_scan(dev, &dev->reg, SANE_TRUE, SANE_FALSE);
+ DBG(DBG_error, "%s: timeout while waiting for scanhead to go home\n", __func__);
+ return SANE_STATUS_IO_ERROR;
+ }
+
+
+ DBG(DBG_info, "%s: scanhead is still moving\n", __func__);
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * 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
+ * @return SANE_STATUS_GOOD in cas of success, else failure code
+ */
+static SANE_Status
+gl646_search_start_position (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ Genesys_Settings settings;
+ unsigned int resolution, x, y;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ /* we scan at 300 dpi */
+ resolution = get_closest_resolution(dev->model->ccd_type, 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.
+ auto& sensor = sanei_genesys_find_sensor_for_write(dev, resolution);
+
+ /* fill settings for a gray level scan */
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.scan_mode = ScanColorMode::GRAY;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = 600;
+ settings.lines = dev->model->search_lines;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ /* scan the desired area */
+ std::vector<uint8_t> data;
+ status = simple_scan(dev, sensor, settings, SANE_TRUE, SANE_TRUE, SANE_FALSE, data);
+
+ /* process data if scan is OK */
+ if (status != SANE_STATUS_GOOD) {
+ DBG(DBG_error, "%s: simple_scan failed\n", __func__);
+ DBGCOMPLETED;
+ return status;
+ }
+
+
+ /* handle stagger case : reorder gray data and thus loose some lines */
+ if (dev->current_setup.stagger > 0)
+ {
+ DBG(DBG_proc, "%s: 'un-staggering'\n", __func__);
+ for (y = 0; y < settings.lines - dev->current_setup.stagger; y++)
+ {
+ /* one point out of 2 is 'unaligned' */
+ for (x = 0; x < settings.pixels; x += 2)
+ {
+ data[y * settings.pixels + x] =
+ data[(y + dev->current_setup.stagger) * settings.pixels +
+ x];
+ }
+ }
+ /* correct line number */
+ settings.lines -= dev->current_setup.stagger;
+ }
+ 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 */
+ status =
+ sanei_genesys_search_reference_point (dev, sensor, data.data(),
+ sensor.CCD_start_xoffset,
+ resolution, settings.pixels,
+ settings.lines);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set search reference point: %s\n", __func__,
+ sane_strstatus(status));
+ }
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * internally overriden during effective calibration
+ * sets up register for coarse gain calibration
+ */
+static SANE_Status
+gl646_init_regs_for_coarse_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs)
+{
+ (void) sensor;
+ (void) regs;
+
+ DBG(DBG_proc, "%s\n", __func__);
+ DBG(DBG_proc, "%s: end\n", __func__);
+
+ /* to make compilers happy ... */
+ if (!dev)
+ {
+ return SANE_STATUS_INVAL;
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+
+/**
+ * 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 half_ccd
+ * @param dev scanner's device
+ * @return SANE_STATUS_GOOD if success, else error code
+ */
+static SANE_Status
+gl646_init_regs_for_shading(Genesys_Device * dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs)
+{
+ (void) regs;
+ SANE_Status status = SANE_STATUS_GOOD;
+ Genesys_Settings settings;
+ /* 1: no half_ccd, 2: use half number of pixels */
+ int half_ccd = 1;
+ int cksel = 1;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ /* fill settings for scan : always a color scan */
+ int channels = 3;
+
+ if (sensor.ccd_size_divisor > 1)
+ {
+ // when shading all (full width) line, we must adapt to half_ccd case
+ if (is_half_ccd(dev->model->ccd_type, dev->settings.xres, channels) == SANE_TRUE)
+ {
+ half_ccd = 2;
+ }
+ }
+
+ settings.scan_method = dev->settings.scan_method;
+ settings.scan_mode = dev->settings.scan_mode;
+ if (dev->model->is_cis == SANE_FALSE)
+ {
+ // 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 / half_ccd;
+ cksel = get_cksel(dev->model->ccd_type, dev->settings.xres, channels);
+ settings.xres = settings.xres / cksel;
+ settings.yres = settings.xres;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels =
+ (sensor.sensor_pixels * settings.xres) / sensor.optical_res;
+ dev->calib_lines = dev->model->shading_lines;
+ settings.lines = dev->calib_lines * (3 - half_ccd);
+ settings.depth = 16;
+ settings.color_filter = dev->settings.color_filter;
+
+ settings.disable_interpolation = dev->settings.disable_interpolation;
+ settings.threshold = dev->settings.threshold;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ /* keep account of the movement for final scan move */
+ dev->scanhead_position_in_steps += settings.lines;
+
+ /* we don't want top offset, but we need right margin to be the same
+ * than the one for the final scan */
+ status = setup_for_scan(dev, sensor, &dev->reg, settings, SANE_TRUE, SANE_FALSE, SANE_FALSE);
+
+ /* used when sending shading calibration data */
+ dev->calib_pixels = settings.pixels;
+ dev->calib_channels = dev->current_setup.channels;
+ if (dev->model->is_cis == SANE_FALSE)
+ {
+ dev->calib_channels = 3;
+ }
+
+ /* no shading */
+ dev->reg.find_reg(0x01).value &= ~REG01_DVDSET;
+ dev->reg.find_reg(0x02).value |= REG02_ACDCDIS; /* ease backtracking */
+ dev->reg.find_reg(0x02).value &= ~(REG02_FASTFED | REG02_AGOHOME);
+ dev->reg.find_reg(0x05).value &= ~REG05_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 == SANE_FALSE)
+ {
+ sanei_genesys_set_triple(&dev->reg, REG_LINCNT, dev->calib_lines);
+ }
+ else
+ {
+ sanei_genesys_set_triple(&dev->reg, REG_LINCNT, dev->calib_lines * 3);
+ }
+
+ /* copy reg to calib_reg */
+ dev->calib_reg = dev->reg;
+
+ /* this is an hack to make calibration cache working .... */
+ /* if we don't do this, cache will be identified at the shading calibration
+ * dpi which is different from calibration one */
+ dev->current_setup.xres = dev->settings.xres;
+ DBG(DBG_info, "%s:\n\tdev->settings.xres=%d\n\tdev->settings.yres=%d\n", __func__,
+ dev->settings.xres, dev->settings.yres);
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+}
+
+static bool gl646_needs_home_before_init_regs_for_scan(Genesys_Device* dev)
+{
+ return (dev->scanhead_position_in_steps > 0 &&
+ 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.
+ */
+static SANE_Status
+gl646_init_regs_for_scan (Genesys_Device * dev, const Genesys_Sensor& sensor)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+
+ DBGSTART;
+
+ RIE(setup_for_scan(dev, sensor, &dev->reg, dev->settings, SANE_FALSE, SANE_TRUE, SANE_TRUE));
+
+ /* gamma is only enabled at final scan time */
+ if (dev->settings.depth < 16)
+ dev->reg.find_reg(0x05).value |= REG05_GMMENB;
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * 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 SANE_TRUE if move to scan area is split from scan, SANE_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 SANE_Status
+setup_for_scan (Genesys_Device * dev,
+ const Genesys_Sensor& sensor,
+ Genesys_Register_Set *regs,
+ Genesys_Settings settings,
+ SANE_Bool split,
+ SANE_Bool xcorrection,
+ SANE_Bool ycorrection)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ SANE_Int depth;
+ int channels;
+
+ DBG(DBG_info, "%s ", __func__);
+ debug_dump(DBG_info, dev->settings);
+
+ if (settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS)
+ {
+ channels = 3;
+ }
+ else
+ {
+ channels = 1;
+ }
+
+ depth=settings.depth;
+ if (settings.scan_mode == ScanColorMode::LINEART)
+ {
+ if (settings.dynamic_lineart == SANE_TRUE)
+ {
+ depth = 8;
+ }
+ else
+ {
+ /* XXX STEF XXX : why does the common layer never send depth=1 ? */
+ depth = 1;
+ }
+ }
+
+ // compute distance to move
+ float move = 0;
+ // XXX STEF XXX MD5345 -> optical_ydpi, other base_ydpi => half/full step ? */
+ if (split == SANE_FALSE) {
+ if (dev->model->is_sheetfed == SANE_FALSE) {
+ if (ycorrection == SANE_TRUE) {
+ move = SANE_UNFIX(dev->model->y_offset);
+ }
+
+ // add tl_y to base movement
+ }
+ move += settings.tl_y;
+
+ if (move < 0) {
+ DBG(DBG_error, "%s: overriding negative move value %f\n", __func__, move);
+ move = 0;
+ }
+ }
+ move = (move * dev->motor.optical_ydpi) / MM_PER_INCH;
+ DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
+
+ float start = settings.tl_x;
+ if (xcorrection) {
+ if (settings.scan_method == ScanMethod::FLATBED) {
+ start += SANE_UNFIX(dev->model->x_offset);
+ } else {
+ start += SANE_UNFIX(dev->model->x_offset_ta);
+ }
+ }
+ start = (start * sensor.optical_res) / MM_PER_INCH;
+
+ SetupParams params;
+ params.xres = settings.xres;
+ params.yres = settings.yres;
+ params.startx = start;
+ params.starty = move;
+ params.pixels = settings.pixels;
+ params.lines = settings.lines;
+ params.depth = depth;
+ params.channels = channels;
+ params.scan_method = dev->settings.scan_method;
+ params.scan_mode = settings.scan_mode;
+ params.color_filter = settings.color_filter;
+ params.flags = 0;
+ if (settings.scan_method == ScanMethod::TRANSPARENCY) {
+ params.flags |= SCAN_FLAG_USE_XPA;
+ }
+
+ uint16_t slope_table0[256] = {};
+ uint16_t slope_table1[256] = {};
+
+ /* set up correct values for scan (gamma and shading enabled) */
+ status = gl646_setup_registers(dev, sensor, regs, params, slope_table0, slope_table1,
+ xcorrection);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed setup registers: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* send computed slope tables */
+ status =
+ gl646_send_slope_table (dev, 0, slope_table0,
+ sanei_genesys_read_reg_from_set (regs, 0x21));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to send slope table 0: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ status =
+ gl646_send_slope_table (dev, 1, slope_table1,
+ sanei_genesys_read_reg_from_set (regs, 0x6b));
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to send slope table 1: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * this function sen gamm table to ASIC
+ */
+static SANE_Status
+gl646_send_gamma_table (Genesys_Device * dev, const Genesys_Sensor& sensor)
+{
+ int size;
+ int address;
+ SANE_Status status = SANE_STATUS_GOOD;
+ int bits;
+
+ DBGSTART;
+
+ /* 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);
+
+ RIE(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:
+ return SANE_STATUS_INVAL;
+ }
+
+ /* send address */
+ status = sanei_genesys_set_buffer_address (dev, address);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set buffer address: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* send data */
+ status = sanei_genesys_bulk_write_data(dev, 0x3c, gamma.data(), size * 2 * 3);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to send gamma table: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+/** @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
+ */
+static SANE_Status
+gl646_led_calibration (Genesys_Device * dev, Genesys_Sensor& sensor, Genesys_Register_Set& regs)
+{
+ (void) regs;
+ int total_size;
+ unsigned int i, j;
+ SANE_Status status = SANE_STATUS_GOOD;
+ int val;
+ unsigned int channels;
+ int avg[3], avga, avge;
+ int turn;
+ uint16_t expr, expg, expb;
+ Genesys_Settings settings;
+ SANE_Int resolution;
+
+ SANE_Bool acceptable = SANE_FALSE;
+
+ DBG(DBG_proc, "%s\n", __func__);
+ if (!dev->model->is_cis)
+ {
+ DBG(DBG_proc, "%s: not a cis scanner, nothing to do...\n", __func__);
+ return SANE_STATUS_GOOD;
+ }
+
+ /* get led calibration resolution */
+ if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS)
+ {
+ channels = 3;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ }
+ else
+ {
+ channels = 1;
+ settings.scan_mode = ScanColorMode::GRAY;
+ }
+ resolution = get_closest_resolution(dev->model->ccd_type, sensor.optical_res, channels);
+
+ /* offset calibration is always done in color mode */
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels =
+ (sensor.sensor_pixels * resolution) / sensor.optical_res;
+ settings.lines = 1;
+ settings.depth = 16;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ /* 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
+
+ Sensor_Master uint8_t regs_0x10_0x15[6];
+ */
+ expr = sensor.exposure.red;
+ expg = sensor.exposure.green;
+ expb = sensor.exposure.blue;
+
+ turn = 0;
+
+ do
+ {
+ sensor.exposure.red = expr;
+ sensor.exposure.green = expg;
+ sensor.exposure.blue = expb;
+
+ DBG(DBG_info, "%s: starting first line reading\n", __func__);
+
+ status = simple_scan(dev, sensor, settings, SANE_FALSE, SANE_TRUE, SANE_FALSE, line);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char fn[30];
+ snprintf(fn, 30, "gl646_led_%02d.pnm", turn);
+ sanei_genesys_write_pnm_file(fn, line.data(), 16, channels, settings.pixels, 1);
+ }
+
+ acceptable = SANE_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 = SANE_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);
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * 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 SANE_Status
+ad_fe_offset_calibration (Genesys_Device * dev, const Genesys_Sensor& sensor)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ unsigned int channels;
+ int pass = 0;
+ SANE_Int resolution;
+ Genesys_Settings settings;
+ unsigned int x, y, adr, min;
+ unsigned int bottom, black_pixels;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+ channels = 3;
+ resolution = get_closest_resolution(dev->model->ccd_type, sensor.optical_res, channels);
+ black_pixels =
+ (sensor.black_pixels * resolution) / sensor.optical_res;
+ DBG(DBG_io2, "%s: black_pixels=%d\n", __func__, black_pixels);
+
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels =
+ (sensor.sensor_pixels * resolution) / sensor.optical_res;
+ settings.lines = CALIBRATION_LINES;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ /* 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);
+ status =
+ simple_scan(dev, sensor, settings, SANE_FALSE, SANE_TRUE, SANE_FALSE, line);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to scan first line\n", __func__);
+ return status;
+ }
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char title[30];
+ snprintf(title, 30, "gl646_offset%03d.pnm", (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)
+ {
+ DBG(DBG_error, "%s: failed to find correct offset\n", __func__);
+ return SANE_STATUS_INVAL;
+ }
+
+ 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));
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+}
+
+#define DARK_TARGET 8
+/**
+ * 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
+ * @return SANE_STATUS_GOOD if success, else error code is failure
+*/
+static SANE_Status
+gl646_offset_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs)
+{
+ (void) regs;
+ SANE_Status status = SANE_STATUS_GOOD;
+ unsigned int channels;
+ int pass = 0, avg;
+ SANE_Int resolution;
+ Genesys_Settings settings;
+ int topavg, bottomavg;
+ int top, bottom, black_pixels;
+
+ /* Analog Device fronted have a different calibration */
+ if (dev->model->dac_type == DAC_AD_XP200)
+ {
+ return ad_fe_offset_calibration (dev, sensor);
+ }
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ /* setup for a RGB scan, one full sensor's width line */
+ /* resolution is the one from the final scan */
+ channels = 3;
+ if (dev->settings.xres > sensor.optical_res) {
+ resolution = get_closest_resolution(dev->model->ccd_type, sensor.optical_res, channels);
+ } else {
+ resolution = get_closest_resolution(dev->model->ccd_type, dev->settings.xres, channels);
+ }
+ black_pixels =
+ (sensor.black_pixels * resolution) / sensor.optical_res;
+ DBG(DBG_io2, "%s: black_pixels=%d\n", __func__, black_pixels);
+
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels =
+ (sensor.sensor_pixels * resolution) / sensor.optical_res;
+ settings.lines = CALIBRATION_LINES;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ /* 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;
+
+ status = simple_scan(dev, sensor, settings, SANE_FALSE, SANE_TRUE, SANE_FALSE, first_line);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to scan first line\n", __func__);
+ return status;
+ }
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char title[30];
+ 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);
+ status = simple_scan(dev, sensor, settings, SANE_FALSE, SANE_TRUE, SANE_FALSE, second_line);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to scan first line\n", __func__);
+ return status;
+ }
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char title[30];
+ 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);
+
+ /* 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 */
+ status = simple_scan(dev, sensor, settings, SANE_FALSE, SANE_TRUE, SANE_FALSE, second_line);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to scan first line\n", __func__);
+ return status;
+ }
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ char title[30];
+ 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);
+ }
+ }
+
+ /* in case of debug do a final scan to get result */
+ if (DBG_LEVEL >= DBG_data)
+ {
+ status = simple_scan(dev, sensor, settings, SANE_FALSE, SANE_TRUE, SANE_FALSE, second_line);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to scan final line\n", __func__);
+ return status;
+ }
+ sanei_genesys_write_pnm_file("gl646_offset-final.pnm", second_line.data(), 8, channels,
+ settings.pixels, settings.lines);
+ }
+
+ 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));
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+}
+
+/** @brief gain calibration for Analog Device frontends
+ * Alternative coarse gain calibration
+ */
+static SANE_Status
+ad_fe_coarse_gain_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs, int dpi)
+{
+ (void) regs;
+ unsigned int i, channels, val;
+ unsigned int size, count, resolution, pass;
+ SANE_Status status = SANE_STATUS_GOOD;
+ float average;
+ Genesys_Settings settings;
+ char title[32];
+
+ DBGSTART;
+
+ /* 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->ccd_type, dpi, channels);
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels =
+ (sensor.sensor_pixels * resolution) / sensor.optical_res;
+ settings.lines = CALIBRATION_LINES;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ 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 < sensor.gain_white_ref) && (pass < 30))
+ {
+ /* scan with no move */
+ status =
+ simple_scan(dev, sensor, settings, SANE_FALSE, SANE_TRUE, SANE_FALSE, line);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to scan first line\n", __func__);
+ return status;
+ }
+
+ /* log scanning data */
+ if (DBG_LEVEL >= DBG_data)
+ {
+ sprintf (title, "gl646_alternative_gain%02d.pnm", (int)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 < 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));
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * 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
+ */
+static SANE_Status
+gl646_coarse_gain_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs, int dpi)
+{
+ unsigned int i, j, k, channels, val, maximum, idx;
+ unsigned int count, resolution, pass;
+ SANE_Status status = SANE_STATUS_GOOD;
+ float average[3];
+ Genesys_Settings settings;
+ char title[32];
+
+ if (dev->model->ccd_type == CIS_XP200)
+ {
+ return ad_fe_coarse_gain_calibration (dev, sensor, regs, sensor.optical_res);
+ }
+ DBGSTART;
+
+ /* 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 */
+ if (dpi > sensor.optical_res) {
+ resolution = sensor.optical_res;
+ } else {
+ resolution = get_closest_resolution(dev->model->ccd_type, dev->settings.xres, channels);
+ }
+
+ 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 = (sensor.sensor_pixels * resolution) / sensor.optical_res;
+ }
+ else
+ {
+ settings.tl_x = SANE_UNFIX (dev->model->x_offset_ta);
+ settings.pixels = (SANE_UNFIX (dev->model->x_size_ta) * resolution) / MM_PER_INCH;
+ }
+ settings.lines = CALIBRATION_LINES;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ /* 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] < sensor.gain_white_ref)
+ || (average[1] < sensor.gain_white_ref)
+ || (average[2] < sensor.gain_white_ref)) && (pass < 30))
+ {
+ /* scan with no move */
+ status =
+ simple_scan(dev, sensor, settings, SANE_FALSE, SANE_TRUE, SANE_FALSE, line);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to scan first line\n", __func__);
+ return status;
+ }
+
+ /* log scanning data */
+ if (DBG_LEVEL >= DBG_data)
+ {
+ sprintf (title, "gl646_gain%02d.pnm", (int)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 *= 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] < 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));
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * sets up the scanner's register for warming up. We scan 2 lines without moving.
+ *
+ */
+static SANE_Status
+gl646_init_regs_for_warmup (Genesys_Device * dev,
+ const Genesys_Sensor& sensor,
+ Genesys_Register_Set * local_reg,
+ int *channels, int *total_size)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ Genesys_Settings settings;
+ int resolution, lines;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ dev->frontend = dev->frontend_initial;
+
+ resolution = get_closest_resolution(dev->model->ccd_type, 300, 1);
+
+ /* set up for a half width 2 lines gray scan without moving */
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.scan_mode = ScanColorMode::GRAY;
+ settings.xres = resolution;
+ settings.yres = resolution;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels =
+ (sensor.sensor_pixels * resolution) / sensor.optical_res;
+ settings.lines = 2;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ /* setup for scan */
+ status = setup_for_scan(dev, sensor, &dev->reg, settings, SANE_TRUE, SANE_FALSE, SANE_FALSE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: setup_for_scan failed (%s)\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* we are not going to move, so clear these bits */
+ dev->reg.find_reg(0x02).value &= ~(REG02_FASTFED | REG02_AGOHOME);
+
+ /* don't enable any correction for this scan */
+ dev->reg.find_reg(0x01).value &= ~REG01_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;
+ uint32_t value = 0;
+ sanei_genesys_get_triple(local_reg, REG_LINCNT, &value);
+ lines = value + 1;
+ *total_size = lines * settings.pixels;
+
+ /* now registers are ok, write them to scanner */
+ RIE (gl646_set_fe(dev, sensor, AFE_SET, settings.xres));
+ RIE(sanei_genesys_bulk_write_register(dev, *local_reg));
+
+ DBGCOMPLETED;
+ return status;
+}
+
+
+/*
+ * 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 SANE_Status
+gl646_repark_head (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ Genesys_Settings settings;
+ unsigned int expected, steps;
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ settings.xres = get_closest_resolution(dev->model->ccd_type, 75, 1);
+ settings.yres = settings.xres;
+ settings.tl_x = 0;
+ settings.tl_y = 5;
+ settings.pixels = 600;
+ settings.lines = 4;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ const auto& sensor = sanei_genesys_find_sensor(dev, settings.xres);
+
+ status = setup_for_scan(dev, sensor, &dev->reg, settings, SANE_FALSE, SANE_FALSE, SANE_FALSE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to setup for scan: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* TODO seems wrong ... no effective scan */
+ dev->reg.find_reg(0x01).value &= ~REG01_SCAN;
+
+ status = sanei_genesys_bulk_write_register(dev, dev->reg);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to send registers: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* start scan */
+ status = gl646_begin_scan(dev, sensor, &dev->reg, SANE_TRUE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to begin scan: \n", __func__);
+ return status;
+ }
+
+ uint32_t value32 = 0;
+ sanei_genesys_get_triple(&dev->reg, REG_FEEDL, &value32);
+ expected = value32;
+ do
+ {
+ sanei_genesys_sleep_ms(100);
+ status = sanei_genesys_read_feed_steps (dev, &steps);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read feed steps: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+ }
+ while (steps < expected);
+
+ /* toggle motor flag, put an huge step number and redo move backward */
+ status = gl646_slow_back_home (dev, 1);
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+}
+
+/* *
+ * 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
+ * @return SANE_STATUS_GOOD if success, error code if failure
+ */
+static SANE_Status
+gl646_init (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ struct timeval tv;
+ uint8_t cold = 0, val = 0;
+ uint32_t addr = 0xdead;
+ size_t len;
+
+ DBG_INIT ();
+ DBG(DBG_proc, "%s: start\n", __func__);
+
+ /* to detect real power up condition, we write to REG41
+ * with pwrbit set, then read it back. When scanner is cold (just replugged)
+ * PWRBIT will be set in the returned value
+ */
+ RIE (sanei_genesys_get_status (dev, &cold));
+ DBG(DBG_info, "%s: status=0x%02x\n", __func__, cold);
+ cold = !(cold & REG41_PWRBIT);
+ if (cold)
+ {
+ 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;
+ gettimeofday (&tv, NULL);
+ dev->init_date = tv.tv_sec;
+
+ /* Set default values for registers */
+ gl646_init_regs (dev);
+
+ /* Init shading data */
+ RIE (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 (cold)
+ {
+ DBG(DBG_info, "%s: device is cold\n", __func__);
+
+ val = 0x04;
+ dev->usb_dev.control_msg(REQUEST_TYPE_OUT, REQUEST_REGISTER, VALUE_INIT, INDEX, 1, &val);
+
+ /* ASIC reset */
+ RIE (sanei_genesys_write_register (dev, 0x0e, 0x00));
+ sanei_genesys_sleep_ms(100);
+
+ /* Write initial registers */
+ RIE(sanei_genesys_bulk_write_register(dev, dev->reg));
+
+ /* Test ASIC and RAM */
+ if (!(dev->model->flags & GENESYS_FLAG_LAZY_INIT))
+ {
+ RIE (gl646_asic_test (dev));
+ }
+
+ /* send gamma tables if needed */
+ status = gl646_send_gamma_table(dev, sensor);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to send generic gamma tables: %s\n", __func__,
+ sane_strstatus(status));
+ return status;
+ }
+
+ /* Set powersaving (default = 15 minutes) */
+ RIE (gl646_set_powersaving (dev, 15));
+ } /* end if cold */
+
+ /* Set analog frontend */
+ RIE (gl646_set_fe(dev, sensor, AFE_INIT, 0));
+
+ /* GPO enabling for XP200 */
+ if (dev->model->ccd_type == CIS_XP200)
+ {
+ sanei_genesys_write_register (dev, 0x68, dev->gpo.enable[0]);
+ sanei_genesys_write_register (dev, 0x69, dev->gpo.enable[1]);
+
+ // enable GPIO
+ gl646_gpio_output_enable(dev->usb_dev, 6);
+
+ // writes 0 to GPIO
+ gl646_gpio_write(dev->usb_dev, 0);
+
+ // clear GPIO enable
+ gl646_gpio_output_enable(dev->usb_dev, 0);
+
+ sanei_genesys_write_register (dev, 0x66, 0x10);
+ sanei_genesys_write_register (dev, 0x66, 0x00);
+ sanei_genesys_write_register (dev, 0x66, 0x10);
+ }
+
+ /* MD6471/G2410 and XP200 read/write data from an undocumented memory area which
+ * is after the second slope table */
+ if (dev->model->gpo_type != GPO_HP3670
+ && dev->model->gpo_type != GPO_HP2400)
+ {
+ switch (sensor.optical_res)
+ {
+ case 600:
+ addr = 0x08200;
+ break;
+ case 1200:
+ addr = 0x10200;
+ break;
+ case 2400:
+ addr = 0x1fa00;
+ break;
+ }
+ status = sanei_genesys_set_buffer_address (dev, addr);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set up control address\n", __func__);
+ return SANE_STATUS_INVAL;
+ }
+ sanei_usb_set_timeout (2 * 1000);
+ len = 6;
+ status = gl646_bulk_read_data (dev, 0x45, dev->control, len);
+ /* for some reason, read fails here for MD6471, HP2300 and XP200
+ * one time out of 2 scanimage launches
+ */
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_warn, "%s: failed to read control\n", __func__);
+ status = gl646_bulk_read_data (dev, 0x45, dev->control, len);
+ }
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_warn, "%s: failed to read control\n", __func__);
+ return SANE_STATUS_INVAL;
+ }
+ else
+ {
+ 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 == SANE_FALSE)
+ {
+ if (dev->model->flags & GENESYS_FLAG_REPARK)
+ {
+ status = gl646_repark_head (dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ if (status == SANE_STATUS_INVAL)
+ {
+ DBG(DBG_error0, "Your scanner is locked. Please move the lock switch to the "
+ "unlocked position\n");
+ return SANE_STATUS_JAMMED;
+ }
+ else
+ DBG(DBG_error, "%s: gl646_repark_head failed: %s\n", __func__,
+ sane_strstatus(status));
+ return status;
+ }
+ }
+ else
+ {
+ RIE (gl646_slow_back_home (dev, SANE_TRUE));
+ }
+ }
+
+ /* here session and device are initialized */
+ dev->already_initialized = SANE_TRUE;
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return SANE_STATUS_GOOD;
+}
+
+static
+SANE_Status
+gl646_move_to_ta (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+
+ DBGSTART;
+ if (simple_move (dev, SANE_UNFIX (dev->model->y_offset_calib_ta)) !=
+ SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to move to calibration area\n", __func__);
+ return status;
+ }
+ DBGCOMPLETED;
+ return status;
+}
+
+
+/**
+ * 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 SANE_TRUE if moving during scan
+ * @param forward SANE_TRUE if moving forward during scan
+ * @param shading SANE_TRUE to enable shading correction
+ * @param data pointer for the data
+ */
+static SANE_Status
+simple_scan (Genesys_Device * dev, const Genesys_Sensor& sensor,
+ Genesys_Settings settings, SANE_Bool move,
+ SANE_Bool forward, SANE_Bool shading, std::vector<uint8_t>& data)
+{
+ SANE_Status status = SANE_STATUS_INVAL;
+ unsigned int size, lines, x, y, bpp;
+ SANE_Bool empty, split;
+ int count;
+ uint8_t val;
+
+ DBG(DBG_proc, "%s: starting\n", __func__);
+ DBG(DBG_io, "%s: move=%d, forward=%d, shading=%d\n", __func__, move, forward, shading);
+
+ /* round up to multiple of 3 in case of CIS scanner */
+ if (dev->model->is_cis == SANE_TRUE)
+ {
+ settings.lines = ((settings.lines + 2) / 3) * 3;
+ }
+
+ /* setup for move then scan */
+ if (move == SANE_TRUE && settings.tl_y > 0)
+ {
+ split = SANE_FALSE;
+ }
+ else
+ {
+ split = SANE_TRUE;
+ }
+ status = setup_for_scan(dev, sensor, &dev->reg, settings, split, SANE_FALSE, SANE_FALSE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: setup_for_scan failed (%s)\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* allocate memory fo scan : LINCNT may have been adjusted for CCD reordering */
+ if (dev->model->is_cis == SANE_TRUE)
+ {
+ uint32_t value = 0;
+ sanei_genesys_get_triple(&dev->reg, REG_LINCNT, &value);
+ lines = value / 3;
+ }
+ else
+ {
+ uint32_t value = 0;
+ sanei_genesys_get_triple(&dev->reg, REG_LINCNT, &value);
+ lines = value + 1;
+ }
+ size = lines * settings.pixels;
+ if (settings.depth == 16)
+ bpp = 2;
+ else
+ bpp = 1;
+ size *= bpp;
+ if (settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS)
+ size *= 3;
+ 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 */
+ status = gl646_set_fe(dev, sensor, AFE_SET, settings.xres);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set frontend: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* no shading correction and not watch dog for simple scan */
+ dev->reg.find_reg(0x01).value &= ~(REG01_DVDSET | REG01_DOGENB);
+ if (shading == SANE_TRUE)
+ {
+ dev->reg.find_reg(0x01).value |= REG01_DVDSET;
+ }
+
+ /* enable gamma table for the scan */
+ dev->reg.find_reg(0x05).value |= REG05_GMMENB;
+
+ /* one table movement for simple scan */
+ dev->reg.find_reg(0x02).value &= ~REG02_FASTFED;
+
+ if (move == SANE_FALSE)
+ {
+ sanei_genesys_set_motor_power(dev->reg, false);
+
+ /* no automatic go home if no movement */
+ dev->reg.find_reg(0x02).value &= ~REG02_AGOHOME;
+ }
+ if (forward == SANE_FALSE)
+ {
+ dev->reg.find_reg(0x02).value |= REG02_MTRREV;
+ }
+ else
+ {
+ dev->reg.find_reg(0x02).value &= ~REG02_MTRREV;
+ }
+
+ /* no automatic go home when using XPA */
+ if (settings.scan_method == ScanMethod::TRANSPARENCY)
+ {
+ dev->reg.find_reg(0x02).value &= ~REG02_AGOHOME;
+ }
+
+ /* write scan registers */
+ status = sanei_genesys_bulk_write_register(dev, dev->reg);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* starts scan */
+ status = gl646_begin_scan(dev, sensor, &dev->reg, move);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to begin scan: \n", __func__);
+ return status;
+ }
+
+ /* wait for buffers to be filled */
+ count = 0;
+ do
+ {
+ sanei_genesys_sleep_ms(10);
+ RIE (sanei_genesys_get_status (dev, &val));
+ if (DBG_LEVEL > DBG_info)
+ {
+ print_status (val);
+ }
+ RIE (sanei_genesys_test_buffer_empty (dev, &empty));
+ count++;
+ }
+ while (empty && count < 1000);
+ if (count == 1000)
+ {
+ DBG(DBG_error, "%s: failed toread data\n", __func__);
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ /* now we're on target, we can read data */
+ status = sanei_genesys_read_data_from_scanner (dev, data.data(), size);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ /* in case of CIS scanner, we must reorder data */
+ if (dev->model->is_cis == SANE_TRUE
+ && 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 */
+ status = end_scan(dev, &dev->reg, SANE_TRUE, SANE_FALSE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to end scan: %s\n", __func__, sane_strstatus(status));
+ return status;
+ }
+
+ DBG(DBG_proc, "%s: end\n", __func__);
+ return status;
+}
+
+/**
+ * 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 SANE_Status
+simple_move (Genesys_Device * dev, SANE_Int distance)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ Genesys_Settings settings;
+
+ DBG(DBG_proc, "%s: %d mm\n", __func__, distance);
+
+ int resolution = get_lowest_resolution(dev->model->ccd_type, 3);
+
+ const auto& sensor = sanei_genesys_find_sensor(dev, resolution);
+
+ /* TODO give a no AGOHOME flag */
+ settings.scan_method = ScanMethod::TRANSPARENCY;
+ 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.lines = (distance * settings.xres) / MM_PER_INCH;
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ std::vector<uint8_t> data;
+ status = simple_scan(dev, sensor, settings, SANE_TRUE, SANE_TRUE, SANE_FALSE, data);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: simple_scan failed\n", __func__);
+ }
+
+ DBGCOMPLETED
+ return status;
+}
+
+/**
+ * update the status of the required sensor in the scanner session
+ * the button fileds are used to make events 'sticky'
+ */
+static SANE_Status
+gl646_update_hardware_sensors (Genesys_Scanner * session)
+{
+ 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->usb_dev, &value);
+ DBG(DBG_io, "%s: GPIO=0x%02x\n", __func__, value);
+
+ // scan button
+ if (dev->model->buttons & GENESYS_HAS_SCAN_SW) {
+ switch (dev->model->gpo_type) {
+ case GPO_XP200:
+ session->buttons[BUTTON_SCAN_SW].write((value & 0x02) != 0);
+ break;
+ case GPO_5345:
+ session->buttons[BUTTON_SCAN_SW].write(value == 0x16);
+ break;
+ case GPO_HP2300:
+ session->buttons[BUTTON_SCAN_SW].write(value == 0x6c);
+ break;
+ case GPO_HP3670:
+ case GPO_HP2400:
+ session->buttons[BUTTON_SCAN_SW].write((value & 0x20) == 0);
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+ }
+
+ // email button
+ if (dev->model->buttons & GENESYS_HAS_EMAIL_SW) {
+ switch (dev->model->gpo_type) {
+ case GPO_5345:
+ session->buttons[BUTTON_EMAIL_SW].write(value == 0x12);
+ break;
+ case GPO_HP3670:
+ case GPO_HP2400:
+ session->buttons[BUTTON_EMAIL_SW].write((value & 0x08) == 0);
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+ }
+
+ // copy button
+ if (dev->model->buttons & GENESYS_HAS_COPY_SW) {
+ switch (dev->model->gpo_type) {
+ case GPO_5345:
+ session->buttons[BUTTON_COPY_SW].write(value == 0x11);
+ break;
+ case GPO_HP2300:
+ session->buttons[BUTTON_COPY_SW].write(value == 0x5c);
+ break;
+ case GPO_HP3670:
+ case GPO_HP2400:
+ session->buttons[BUTTON_COPY_SW].write((value & 0x10) == 0);
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+ }
+
+ // power button
+ if (dev->model->buttons & GENESYS_HAS_POWER_SW) {
+ switch (dev->model->gpo_type) {
+ case GPO_5345:
+ session->buttons[BUTTON_POWER_SW].write(value == 0x14);
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+ }
+
+ // ocr button
+ if (dev->model->buttons & GENESYS_HAS_OCR_SW) {
+ switch (dev->model->gpo_type) {
+ case GPO_5345:
+ session->buttons[BUTTON_OCR_SW].write(value == 0x13);
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+ }
+
+ // document detection
+ if (dev->model->buttons & GENESYS_HAS_PAGE_LOADED_SW) {
+ switch (dev->model->gpo_type) {
+ case GPO_XP200:
+ session->buttons[BUTTON_PAGE_LOADED_SW].write((value & 0x04) != 0);
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+ }
+
+ /* XPA detection */
+ if (dev->model->flags & GENESYS_FLAG_XPA)
+ {
+ switch (dev->model->gpo_type)
+ {
+ case GPO_HP3670:
+ case GPO_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:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+
+static SANE_Status
+write_control (Genesys_Device * dev, const Genesys_Sensor& sensor, int resolution)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ uint8_t control[4];
+ uint32_t addr = 0xdead;
+
+ /* 2300 does not write to 'control' */
+ if (dev->model->motor_type == MOTOR_HP2300)
+ return SANE_STATUS_GOOD;
+
+ /* 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:
+ DBG(DBG_error, "%s: failed to compute control address\n", __func__);
+ return SANE_STATUS_INVAL;
+ }
+
+ /* XP200 sets dpi, what other scanner put is unknown yet */
+ switch (dev->model->motor_type)
+ {
+ case MOTOR_XP200:
+ /* we put scan's dpi, not motor one */
+ control[0] = LOBYTE (resolution);
+ control[1] = HIBYTE (resolution);
+ control[2] = dev->control[4];
+ control[3] = dev->control[5];
+ break;
+ case MOTOR_HP3670:
+ case MOTOR_HP2400:
+ case MOTOR_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]);
+ status = sanei_genesys_set_buffer_address (dev, addr);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set up control address\n", __func__);
+ return SANE_STATUS_INVAL;
+ }
+ status = sanei_genesys_bulk_write_data(dev, 0x3c, control, 4);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: failed to set up control\n", __func__);
+ return SANE_STATUS_INVAL;
+ }
+ return status;
+}
+
+/**
+ * check if a stored calibration is compatible with requested scan.
+ * @return true if compatible, false if not.
+ * Whenever an error is met, it is returned.
+ * @param dev scanner device
+ * @param cache cache entry to test
+ * @param for_overwrite reserved for future use ...
+ */
+static bool
+gl646_is_compatible_calibration (Genesys_Device * dev, const Genesys_Sensor& sensor,
+ Genesys_Calibration_Cache * cache,
+ int for_overwrite)
+{
+ (void) sensor;
+#ifdef HAVE_SYS_TIME_H
+ struct timeval time;
+#endif
+ int compatible = 1;
+
+ DBG(DBG_proc, "%s: start (for_overwrite=%d)\n", __func__, for_overwrite);
+
+ if (cache == NULL)
+ return false;
+
+ /* build minimal current_setup for calibration cache use only, it will be better
+ * computed when during setup for scan
+ */
+ if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS)
+ {
+ dev->current_setup.channels = 3;
+ }
+ else
+ {
+ dev->current_setup.channels = 1;
+ }
+ dev->current_setup.xres = dev->settings.xres;
+
+ DBG(DBG_io, "%s: requested=(%d,%f), tested=(%d,%f)\n", __func__, dev->current_setup.channels,
+ dev->current_setup.xres, cache->used_setup.channels, cache->used_setup.xres);
+
+ /* a calibration cache is compatible if color mode and x dpi match the user
+ * requested scan. In the case of CIS scanners, dpi isn't a criteria */
+ if (dev->model->is_cis == SANE_FALSE)
+ {
+ compatible =
+ ((dev->current_setup.channels == cache->used_setup.channels)
+ && (((int) dev->current_setup.xres) ==
+ ((int) cache->used_setup.xres)));
+ }
+ else
+ {
+ compatible =
+ (dev->current_setup.channels == cache->used_setup.channels);
+ }
+ if (dev->current_setup.params.scan_method != cache->used_setup.params.scan_method)
+ {
+ DBG(DBG_io, "%s: current method=%d, used=%d\n", __func__,
+ static_cast<unsigned>(dev->current_setup.params.scan_method),
+ static_cast<unsigned>(cache->used_setup.params.scan_method));
+ compatible = 0;
+ }
+ if (!compatible)
+ {
+ DBG(DBG_proc, "%s: completed, non compatible cache\n", __func__);
+ return false;
+ }
+
+ /* a cache entry expires after 30 minutes for non sheetfed scanners */
+ /* this is not taken into account when overwriting cache entries */
+#ifdef HAVE_SYS_TIME_H
+ if(for_overwrite == SANE_FALSE)
+ {
+ gettimeofday (&time, NULL);
+ if ((time.tv_sec - cache->last_calibration > 30 * 60)
+ && (dev->model->is_sheetfed == SANE_FALSE))
+ {
+ DBG(DBG_proc, "%s: expired entry, non compatible cache\n", __func__);
+ return false;
+ }
+ }
+#endif
+
+ DBG(DBG_proc, "%s: completed, cache compatible\n", __func__);
+ return true;
+}
+
+/**
+ * search for a full width black or white strip.
+ * @param dev scanner device
+ * @param forward SANE_TRUE if searching forward, SANE_FALSE if searching backward
+ * @param black SANE_TRUE if searching for a black strip, SANE_FALSE for a white strip
+ * @return SANE_STATUS_GOOD if a matching strip is found, SANE_STATUS_UNSUPPORTED if not
+ */
+static SANE_Status
+gl646_search_strip(Genesys_Device * dev, const Genesys_Sensor& sensor, SANE_Bool forward, SANE_Bool black)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ SANE_Bool half_ccd = SANE_FALSE;
+ Genesys_Settings settings;
+ int res = get_closest_resolution(dev->model->ccd_type, 75, 1);
+ unsigned int pass, count, found, x, y;
+ char title[80];
+
+ DBG(DBG_proc, "%s: start\n", __func__);
+ /* adapt to half_ccd case */
+ if (sensor.ccd_size_divisor > 1)
+ {
+ /* walk the master mode list to find if half_ccd */
+ // FIXME: possibly wrong channel count for is_half_ccd
+ if (is_half_ccd (dev->model->ccd_type, res, 3) == SANE_TRUE)
+ {
+ half_ccd = SANE_TRUE;
+ }
+ }
+
+ /* we set up for a lowest available resolution color grey scan, full width */
+ settings.scan_method = ScanMethod::FLATBED;
+ settings.scan_mode = ScanColorMode::GRAY;
+ settings.xres = res;
+ settings.yres = res;
+ settings.tl_x = 0;
+ settings.tl_y = 0;
+ settings.pixels = (SANE_UNFIX (dev->model->x_size) * res) / MM_PER_INCH;
+ if (half_ccd == SANE_TRUE)
+ {
+ settings.pixels /= 2;
+ }
+
+ /* 15 mm at at time */
+ settings.lines = (15 * settings.yres) / MM_PER_INCH; /* may become a parameter from genesys_devices.c */
+ settings.depth = 8;
+ settings.color_filter = ColorFilter::RED;
+
+ settings.disable_interpolation = 0;
+ settings.threshold = 0;
+ settings.dynamic_lineart = SANE_FALSE;
+
+ /* 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 */
+ status =
+ simple_scan(dev, sensor, settings, SANE_TRUE, forward, SANE_FALSE, data);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG(DBG_error, "%s: simple_scan failed\n", __func__);
+ return status;
+ }
+ if (DBG_LEVEL >= DBG_data)
+ {
+ sprintf (title, "gl646_search_strip_%s%02d.pnm", forward ? "fwd" : "bwd",
+ (int)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)
+ {
+ status = SANE_STATUS_GOOD;
+ DBG(DBG_info, "%s: strip found\n", __func__);
+ }
+ else
+ {
+ status = SANE_STATUS_UNSUPPORTED;
+ DBG(DBG_info, "%s: strip not found\n", __func__);
+ }
+ return status;
+}
+
+/** the gl646 command set */
+static Genesys_Command_Set gl646_cmd_set = {
+ "gl646-generic", /* the name of this set */
+
+ gl646_needs_home_before_init_regs_for_scan,
+
+ gl646_init,
+ gl646_init_regs_for_warmup,
+ gl646_init_regs_for_coarse_calibration,
+ gl646_init_regs_for_shading,
+ gl646_init_regs_for_scan,
+
+ gl646_get_filter_bit,
+ gl646_get_lineart_bit,
+ gl646_get_bitset_bit,
+ gl646_get_gain4_bit,
+ gl646_get_fast_feed_bit,
+ gl646_test_buffer_empty_bit,
+ gl646_test_motor_flag_bit,
+
+ gl646_public_set_fe,
+ gl646_set_powersaving,
+ gl646_save_power,
+
+ gl646_begin_scan,
+ gl646_end_scan,
+
+ gl646_send_gamma_table,
+
+ gl646_search_start_position,
+
+ gl646_offset_calibration,
+ gl646_coarse_gain_calibration,
+ gl646_led_calibration,
+
+ NULL,
+ gl646_slow_back_home,
+ NULL,
+
+ sanei_genesys_bulk_write_register,
+ sanei_genesys_bulk_write_data,
+ gl646_bulk_read_data,
+
+ gl646_update_hardware_sensors,
+
+ /* sheetfed related functions */
+ gl646_load_document,
+ gl646_detect_document_end,
+ gl646_eject_document,
+ gl646_search_strip,
+
+ gl646_is_compatible_calibration,
+ gl646_move_to_ta,
+ NULL,
+ NULL,
+ NULL
+};
+
+SANE_Status
+sanei_gl646_init_cmd_set (Genesys_Device * dev)
+{
+ dev->model->cmd_set = &gl646_cmd_set;
+ return SANE_STATUS_GOOD;
+}
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