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authorJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:13:01 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:13:01 +0100
commitffa8801644a7d53cc1c785e3450f794c07a14eb0 (patch)
tree8d72a18a9a08b9151d12badcb1c78ce06a059f62 /backend/genesys/gl841.cpp
parent1687222e1b9e74c89cafbb5910e72d8ec7bfd40f (diff)
New upstream version 1.0.29upstream/1.0.29
Diffstat (limited to 'backend/genesys/gl841.cpp')
-rw-r--r--backend/genesys/gl841.cpp4010
1 files changed, 4010 insertions, 0 deletions
diff --git a/backend/genesys/gl841.cpp b/backend/genesys/gl841.cpp
new file mode 100644
index 0000000..470f9ba
--- /dev/null
+++ b/backend/genesys/gl841.cpp
@@ -0,0 +1,4010 @@
+/* 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 Philipp Schmid <philipp8288@web.de>
+ Copyright (C) 2005-2009 Pierre Willenbrock <pierre@pirsoft.dnsalias.org>
+ Copyright (C) 2006 Laurent Charpentier <laurent_pubs@yahoo.com>
+ Copyright (C) 2010 Chris Berry <s0457957@sms.ed.ac.uk> and Michael Rickmann <mrickma@gwdg.de>
+ for Plustek Opticbook 3600 support
+
+
+ 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 "gl841.h"
+#include "gl841_registers.h"
+#include "test_settings.h"
+
+#include <vector>
+
+namespace genesys {
+namespace gl841 {
+
+
+static int gl841_exposure_time(Genesys_Device *dev, const Genesys_Sensor& sensor,
+ float slope_dpi,
+ StepType scan_step_type,
+ int start,
+ int used_pixels);
+
+/** copy sensor specific settings */
+/* *dev : device infos
+ *regs : registers to be set
+ extended : do extended set up
+ ccd_size_divisor: set up for half ccd resolution
+ all registers 08-0B, 10-1D, 52-59 are set up. They shouldn't
+ appear anywhere else but in register_ini
+
+Responsible for signals to CCD/CIS:
+ CCD_CK1X (CK1INV(0x16),CKDIS(0x16),CKTOGGLE(0x18),CKDELAY(0x18),MANUAL1(0x1A),CK1MTGL(0x1C),CK1LOW(0x1D),CK1MAP(0x74,0x75,0x76),CK1NEG(0x7D))
+ CCD_CK2X (CK2INV(0x16),CKDIS(0x16),CKTOGGLE(0x18),CKDELAY(0x18),MANUAL1(0x1A),CK1LOW(0x1D),CK1NEG(0x7D))
+ CCD_CK3X (MANUAL3(0x1A),CK3INV(0x1A),CK3MTGL(0x1C),CK3LOW(0x1D),CK3MAP(0x77,0x78,0x79),CK3NEG(0x7D))
+ CCD_CK4X (MANUAL3(0x1A),CK4INV(0x1A),CK4MTGL(0x1C),CK4LOW(0x1D),CK4MAP(0x7A,0x7B,0x7C),CK4NEG(0x7D))
+ CCD_CPX (CTRLHI(0x16),CTRLINV(0x16),CTRLDIS(0x16),CPH(0x72),CPL(0x73),CPNEG(0x7D))
+ CCD_RSX (CTRLHI(0x16),CTRLINV(0x16),CTRLDIS(0x16),RSH(0x70),RSL(0x71),RSNEG(0x7D))
+ CCD_TGX (TGINV(0x16),TGMODE(0x17),TGW(0x17),EXPR(0x10,0x11),TGSHLD(0x1D))
+ CCD_TGG (TGINV(0x16),TGMODE(0x17),TGW(0x17),EXPG(0x12,0x13),TGSHLD(0x1D))
+ CCD_TGB (TGINV(0x16),TGMODE(0x17),TGW(0x17),EXPB(0x14,0x15),TGSHLD(0x1D))
+ LAMP_SW (EXPR(0x10,0x11),XPA_SEL(0x03),LAMP_PWR(0x03),LAMPTIM(0x03),MTLLAMP(0x04),LAMPPWM(0x29))
+ XPA_SW (EXPG(0x12,0x13),XPA_SEL(0x03),LAMP_PWR(0x03),LAMPTIM(0x03),MTLLAMP(0x04),LAMPPWM(0x29))
+ LAMP_B (EXPB(0x14,0x15),LAMP_PWR(0x03))
+
+other registers:
+ CISSET(0x01),CNSET(0x18),DCKSEL(0x18),SCANMOD(0x18),EXPDMY(0x19),LINECLP(0x1A),CKAREA(0x1C),TGTIME(0x1C),LINESEL(0x1E),DUMMY(0x34)
+
+Responsible for signals to AFE:
+ VSMP (VSMP(0x58),VSMPW(0x58))
+ BSMP (BSMP(0x59),BSMPW(0x59))
+
+other register settings depending on this:
+ RHI(0x52),RLOW(0x53),GHI(0x54),GLOW(0x55),BHI(0x56),BLOW(0x57),
+
+*/
+static void sanei_gl841_setup_sensor(Genesys_Device * dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set * regs,
+ bool extended, unsigned ccd_size_divisor)
+{
+ DBG(DBG_proc, "%s\n", __func__);
+
+ // that one is tricky at least
+ for (uint16_t addr = 0x08; addr <= 0x0b; ++addr) {
+ regs->set8(0x70 + addr - 0x08, sensor.custom_regs.get_value(addr));
+ }
+
+ // ignore registers in range [0x10..0x16)
+ for (uint16_t addr = 0x16; addr < 0x1e; ++addr) {
+ regs->set8(addr, sensor.custom_regs.get_value(addr));
+ }
+
+ // ignore registers in range [0x5b..0x5e]
+ for (uint16_t addr = 0x52; addr < 0x52 + 9; ++addr) {
+ regs->set8(addr, sensor.custom_regs.get_value(addr));
+ }
+
+ /* don't go any further if no extended setup */
+ if (!extended)
+ return;
+
+ /* todo : add more CCD types if needed */
+ /* we might want to expand the Sensor struct to have these
+ 2 kind of settings */
+ if (dev->model->sensor_id == SensorId::CCD_5345) {
+ if (ccd_size_divisor > 1) {
+ GenesysRegister* r;
+ /* settings for CCD used at half is max resolution */
+ r = sanei_genesys_get_address (regs, 0x70);
+ r->value = 0x00;
+ r = sanei_genesys_get_address (regs, 0x71);
+ r->value = 0x05;
+ r = sanei_genesys_get_address (regs, 0x72);
+ r->value = 0x06;
+ r = sanei_genesys_get_address (regs, 0x73);
+ r->value = 0x08;
+ r = sanei_genesys_get_address (regs, 0x18);
+ r->value = 0x28;
+ r = sanei_genesys_get_address (regs, 0x58);
+ r->value = 0x80 | (r->value & 0x03); /* VSMP=16 */
+ }
+ else
+ {
+ GenesysRegister* r;
+ /* swap latch times */
+ r = sanei_genesys_get_address (regs, 0x18);
+ r->value = 0x30;
+ regs->set8(0x52, sensor.custom_regs.get_value(0x55));
+ regs->set8(0x53, sensor.custom_regs.get_value(0x56));
+ regs->set8(0x54, sensor.custom_regs.get_value(0x57));
+ regs->set8(0x55, sensor.custom_regs.get_value(0x52));
+ regs->set8(0x56, sensor.custom_regs.get_value(0x53));
+ regs->set8(0x57, sensor.custom_regs.get_value(0x54));
+ r = sanei_genesys_get_address (regs, 0x58);
+ r->value = 0x20 | (r->value & 0x03); /* VSMP=4 */
+ }
+ return;
+ }
+
+ if (dev->model->sensor_id == SensorId::CCD_HP2300) {
+ /* settings for CCD used at half is max resolution */
+ GenesysRegister* r;
+ if (ccd_size_divisor > 1) {
+ r = sanei_genesys_get_address (regs, 0x70);
+ r->value = 0x16;
+ r = sanei_genesys_get_address (regs, 0x71);
+ r->value = 0x00;
+ r = sanei_genesys_get_address (regs, 0x72);
+ r->value = 0x01;
+ r = sanei_genesys_get_address (regs, 0x73);
+ r->value = 0x03;
+ /* manual clock programming */
+ r = sanei_genesys_get_address (regs, 0x1d);
+ r->value |= 0x80;
+ }
+ else
+ {
+ r = sanei_genesys_get_address (regs, 0x70);
+ r->value = 1;
+ r = sanei_genesys_get_address (regs, 0x71);
+ r->value = 3;
+ r = sanei_genesys_get_address (regs, 0x72);
+ r->value = 4;
+ r = sanei_genesys_get_address (regs, 0x73);
+ r->value = 6;
+ }
+ r = sanei_genesys_get_address (regs, 0x58);
+ r->value = 0x80 | (r->value & 0x03); /* VSMP=16 */
+ return;
+ }
+}
+
+/*
+ * Set all registers LiDE 80 to default values
+ * (function called only once at the beginning)
+ * we are doing a special case to ease development
+ */
+static void
+gl841_init_lide80 (Genesys_Device * dev)
+{
+ dev->reg.init_reg(0x01, 0x82); // 0x02 = SHDAREA and no CISSET !
+ dev->reg.init_reg(0x02, 0x10);
+ dev->reg.init_reg(0x03, 0x50);
+ dev->reg.init_reg(0x04, 0x02);
+ dev->reg.init_reg(0x05, 0x4c); // 1200 DPI
+ dev->reg.init_reg(0x06, 0x38); // 0x38 scanmod=1, pwrbit, GAIN4
+ dev->reg.init_reg(0x07, 0x00);
+ dev->reg.init_reg(0x08, 0x00);
+ dev->reg.init_reg(0x09, 0x11);
+ dev->reg.init_reg(0x0a, 0x00);
+
+ dev->reg.init_reg(0x10, 0x40);
+ dev->reg.init_reg(0x11, 0x00);
+ dev->reg.init_reg(0x12, 0x40);
+ dev->reg.init_reg(0x13, 0x00);
+ dev->reg.init_reg(0x14, 0x40);
+ dev->reg.init_reg(0x15, 0x00);
+ dev->reg.init_reg(0x16, 0x00);
+ dev->reg.init_reg(0x17, 0x01);
+ dev->reg.init_reg(0x18, 0x00);
+ dev->reg.init_reg(0x19, 0x06);
+ dev->reg.init_reg(0x1a, 0x00);
+ dev->reg.init_reg(0x1b, 0x00);
+ dev->reg.init_reg(0x1c, 0x00);
+ dev->reg.init_reg(0x1d, 0x04);
+ dev->reg.init_reg(0x1e, 0x10);
+ dev->reg.init_reg(0x1f, 0x04);
+ dev->reg.init_reg(0x20, 0x02);
+ dev->reg.init_reg(0x21, 0x10);
+ dev->reg.init_reg(0x22, 0x20);
+ dev->reg.init_reg(0x23, 0x20);
+ dev->reg.init_reg(0x24, 0x10);
+ dev->reg.init_reg(0x25, 0x00);
+ dev->reg.init_reg(0x26, 0x00);
+ dev->reg.init_reg(0x27, 0x00);
+
+ dev->reg.init_reg(0x29, 0xff);
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+ dev->reg.init_reg(0x2c, sensor.optical_res>>8);
+ dev->reg.init_reg(0x2d, sensor.optical_res & 0xff);
+ dev->reg.init_reg(0x2e, 0x80);
+ dev->reg.init_reg(0x2f, 0x80);
+ dev->reg.init_reg(0x30, 0x00);
+ dev->reg.init_reg(0x31, 0x10);
+ dev->reg.init_reg(0x32, 0x15);
+ dev->reg.init_reg(0x33, 0x0e);
+ dev->reg.init_reg(0x34, 0x40);
+ dev->reg.init_reg(0x35, 0x00);
+ dev->reg.init_reg(0x36, 0x2a);
+ dev->reg.init_reg(0x37, 0x30);
+ dev->reg.init_reg(0x38, 0x2a);
+ dev->reg.init_reg(0x39, 0xf8);
+
+ dev->reg.init_reg(0x3d, 0x00);
+ dev->reg.init_reg(0x3e, 0x00);
+ dev->reg.init_reg(0x3f, 0x00);
+
+ dev->reg.init_reg(0x52, 0x03);
+ dev->reg.init_reg(0x53, 0x07);
+ dev->reg.init_reg(0x54, 0x00);
+ dev->reg.init_reg(0x55, 0x00);
+ dev->reg.init_reg(0x56, 0x00);
+ dev->reg.init_reg(0x57, 0x00);
+ dev->reg.init_reg(0x58, 0x29);
+ dev->reg.init_reg(0x59, 0x69);
+ dev->reg.init_reg(0x5a, 0x55);
+
+ dev->reg.init_reg(0x5d, 0x20);
+ dev->reg.init_reg(0x5e, 0x41);
+ dev->reg.init_reg(0x5f, 0x40);
+ dev->reg.init_reg(0x60, 0x00);
+ dev->reg.init_reg(0x61, 0x00);
+ dev->reg.init_reg(0x62, 0x00);
+ dev->reg.init_reg(0x63, 0x00);
+ dev->reg.init_reg(0x64, 0x00);
+ dev->reg.init_reg(0x65, 0x00);
+ dev->reg.init_reg(0x66, 0x00);
+ dev->reg.init_reg(0x67, 0x40);
+ dev->reg.init_reg(0x68, 0x40);
+ dev->reg.init_reg(0x69, 0x20);
+ dev->reg.init_reg(0x6a, 0x20);
+ dev->reg.init_reg(0x6c, 0x00);
+ dev->reg.init_reg(0x6d, 0x00);
+ dev->reg.init_reg(0x6e, 0x00);
+ dev->reg.init_reg(0x6f, 0x00);
+ dev->reg.init_reg(0x70, 0x00);
+ dev->reg.init_reg(0x71, 0x05);
+ dev->reg.init_reg(0x72, 0x07);
+ dev->reg.init_reg(0x73, 0x09);
+ dev->reg.init_reg(0x74, 0x00);
+ dev->reg.init_reg(0x75, 0x01);
+ dev->reg.init_reg(0x76, 0xff);
+ dev->reg.init_reg(0x77, 0x00);
+ dev->reg.init_reg(0x78, 0x0f);
+ dev->reg.init_reg(0x79, 0xf0);
+ dev->reg.init_reg(0x7a, 0xf0);
+ dev->reg.init_reg(0x7b, 0x00);
+ dev->reg.init_reg(0x7c, 0x1e);
+ dev->reg.init_reg(0x7d, 0x11);
+ dev->reg.init_reg(0x7e, 0x00);
+ dev->reg.init_reg(0x7f, 0x50);
+ dev->reg.init_reg(0x80, 0x00);
+ dev->reg.init_reg(0x81, 0x00);
+ dev->reg.init_reg(0x82, 0x0f);
+ dev->reg.init_reg(0x83, 0x00);
+ dev->reg.init_reg(0x84, 0x0e);
+ dev->reg.init_reg(0x85, 0x00);
+ dev->reg.init_reg(0x86, 0x0d);
+ dev->reg.init_reg(0x87, 0x02);
+ dev->reg.init_reg(0x88, 0x00);
+ dev->reg.init_reg(0x89, 0x00);
+
+ for (const auto& reg : dev->gpo.regs) {
+ dev->reg.set8(reg.address, reg.value);
+ }
+
+ // specific scanner settings, clock and gpio first
+ // FIXME: remove the dummy reads as we don't use the values
+ if (!is_testing_mode()) {
+ dev->interface->read_register(REG_0x6B);
+ }
+ dev->interface->write_register(REG_0x6B, 0x0c);
+ dev->interface->write_register(0x06, 0x10);
+ dev->interface->write_register(REG_0x6E, 0x6d);
+ dev->interface->write_register(REG_0x6F, 0x80);
+ dev->interface->write_register(REG_0x6B, 0x0e);
+ if (!is_testing_mode()) {
+ dev->interface->read_register(REG_0x6C);
+ }
+ dev->interface->write_register(REG_0x6C, 0x00);
+ if (!is_testing_mode()) {
+ dev->interface->read_register(REG_0x6D);
+ }
+ dev->interface->write_register(REG_0x6D, 0x8f);
+ if (!is_testing_mode()) {
+ dev->interface->read_register(REG_0x6B);
+ }
+ dev->interface->write_register(REG_0x6B, 0x0e);
+ if (!is_testing_mode()) {
+ dev->interface->read_register(REG_0x6B);
+ }
+ dev->interface->write_register(REG_0x6B, 0x0e);
+ if (!is_testing_mode()) {
+ dev->interface->read_register(REG_0x6B);
+ }
+ dev->interface->write_register(REG_0x6B, 0x0a);
+ if (!is_testing_mode()) {
+ dev->interface->read_register(REG_0x6B);
+ }
+ dev->interface->write_register(REG_0x6B, 0x02);
+ if (!is_testing_mode()) {
+ dev->interface->read_register(REG_0x6B);
+ }
+ dev->interface->write_register(REG_0x6B, 0x06);
+
+ dev->interface->write_0x8c(0x10, 0x94);
+ dev->interface->write_register(0x09, 0x10);
+
+ // FIXME: the following code originally changed 0x6b, but due to bug the 0x6c register was
+ // effectively changed. The current behavior matches the old code, but should probably be fixed.
+ dev->reg.find_reg(0x6c).value |= REG_0x6B_GPO18;
+ dev->reg.find_reg(0x6c).value &= ~REG_0x6B_GPO17;
+
+ sanei_gl841_setup_sensor(dev, sensor, &dev->reg, 0, 1);
+}
+
+/*
+ * Set all registers to default values
+ * (function called only once at the beginning)
+ */
+static void
+gl841_init_registers (Genesys_Device * dev)
+{
+ int addr;
+
+ DBG(DBG_proc, "%s\n", __func__);
+
+ dev->reg.clear();
+ if (dev->model->model_id == ModelId::CANON_LIDE_80) {
+ gl841_init_lide80(dev);
+ return ;
+ }
+
+ for (addr = 1; addr <= 0x0a; addr++) {
+ dev->reg.init_reg(addr, 0);
+ }
+ for (addr = 0x10; addr <= 0x27; addr++) {
+ dev->reg.init_reg(addr, 0);
+ }
+ dev->reg.init_reg(0x29, 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 <= 0x5a; addr++)
+ dev->reg.init_reg(addr, 0);
+ for (addr = 0x5d; addr <= 0x87; addr++)
+ dev->reg.init_reg(addr, 0);
+
+
+ dev->reg.find_reg(0x01).value = 0x20; /* (enable shading), CCD, color, 1M */
+ if (dev->model->is_cis) {
+ dev->reg.find_reg(0x01).value |= REG_0x01_CISSET;
+ } else {
+ dev->reg.find_reg(0x01).value &= ~REG_0x01_CISSET;
+ }
+
+ dev->reg.find_reg(0x02).value = 0x30 /*0x38 */ ; /* auto home, one-table-move, full step */
+ dev->reg.find_reg(0x02).value |= REG_0x02_AGOHOME;
+ sanei_genesys_set_motor_power(dev->reg, true);
+ dev->reg.find_reg(0x02).value |= REG_0x02_FASTFED;
+
+ dev->reg.find_reg(0x03).value = 0x1f /*0x17 */ ; /* lamp on */
+ dev->reg.find_reg(0x03).value |= REG_0x03_AVEENB;
+
+ if (dev->model->sensor_id == SensorId::CCD_PLUSTEK_OPTICPRO_3600) {
+ // AD front end
+ dev->reg.find_reg(0x04).value = (2 << REG_0x04S_AFEMOD) | 0x02;
+ }
+ else /* Wolfson front end */
+ {
+ dev->reg.find_reg(0x04).value |= 1 << REG_0x04S_AFEMOD;
+ }
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+
+ dev->reg.find_reg(0x05).value = 0x00; /* disable gamma, 24 clocks/pixel */
+
+ unsigned dpihw = 0;
+ if (sensor.sensor_pixels < 0x1500) {
+ dpihw = 600;
+ } else if (sensor.sensor_pixels < 0x2a80) {
+ dpihw = 1200;
+ } else if (sensor.sensor_pixels < 0x5400) {
+ dpihw = 2400;
+ } else {
+ throw SaneException("Cannot handle sensor pixel count %d", sensor.sensor_pixels);
+ }
+ sanei_genesys_set_dpihw(dev->reg, sensor, dpihw);
+
+ dev->reg.find_reg(0x06).value |= REG_0x06_PWRBIT;
+ dev->reg.find_reg(0x06).value |= REG_0x06_GAIN4;
+
+ /* XP300 CCD needs different clock and clock/pixels values */
+ if (dev->model->sensor_id != SensorId::CCD_XP300 &&
+ dev->model->sensor_id != SensorId::CCD_DP685 &&
+ dev->model->sensor_id != SensorId::CCD_PLUSTEK_OPTICPRO_3600)
+ {
+ dev->reg.find_reg(0x06).value |= 0 << REG_0x06S_SCANMOD;
+ dev->reg.find_reg(0x09).value |= 1 << REG_0x09S_CLKSET;
+ }
+ else
+ {
+ dev->reg.find_reg(0x06).value |= 0x05 << REG_0x06S_SCANMOD; /* 15 clocks/pixel */
+ dev->reg.find_reg(0x09).value = 0; /* 24 MHz CLKSET */
+ }
+
+ dev->reg.find_reg(0x1e).value = 0xf0; /* watch-dog time */
+
+ dev->reg.find_reg(0x17).value |= 1 << REG_0x17S_TGW;
+
+ dev->reg.find_reg(0x19).value = 0x50;
+
+ dev->reg.find_reg(0x1d).value |= 1 << REG_0x1DS_TGSHLD;
+
+ dev->reg.find_reg(0x1e).value |= 1 << REG_0x1ES_WDTIME;
+
+/*SCANFED*/
+ dev->reg.find_reg(0x1f).value = 0x01;
+
+/*BUFSEL*/
+ dev->reg.find_reg(0x20).value = 0x20;
+
+/*LAMPPWM*/
+ dev->reg.find_reg(0x29).value = 0xff;
+
+/*BWHI*/
+ dev->reg.find_reg(0x2e).value = 0x80;
+
+/*BWLOW*/
+ dev->reg.find_reg(0x2f).value = 0x80;
+
+/*LPERIOD*/
+ dev->reg.find_reg(0x38).value = 0x4f;
+ dev->reg.find_reg(0x39).value = 0xc1;
+
+/*VSMPW*/
+ dev->reg.find_reg(0x58).value |= 3 << REG_0x58S_VSMPW;
+
+/*BSMPW*/
+ dev->reg.find_reg(0x59).value |= 3 << REG_0x59S_BSMPW;
+
+/*RLCSEL*/
+ dev->reg.find_reg(0x5a).value |= REG_0x5A_RLCSEL;
+
+/*STOPTIM*/
+ dev->reg.find_reg(0x5e).value |= 0x2 << REG_0x5ES_STOPTIM;
+
+ sanei_gl841_setup_sensor(dev, sensor, &dev->reg, 0, 1);
+
+ // set up GPIO
+ for (const auto& reg : dev->gpo.regs) {
+ dev->reg.set8(reg.address, reg.value);
+ }
+
+ /* TODO there is a switch calling to be written here */
+ if (dev->model->gpio_id == GpioId::CANON_LIDE_35) {
+ dev->reg.find_reg(0x6b).value |= REG_0x6B_GPO18;
+ dev->reg.find_reg(0x6b).value &= ~REG_0x6B_GPO17;
+ }
+
+ if (dev->model->gpio_id == GpioId::XP300) {
+ dev->reg.find_reg(0x6b).value |= REG_0x6B_GPO17;
+ }
+
+ if (dev->model->gpio_id == GpioId::DP685) {
+ /* REG_0x6B_GPO18 lights on green led */
+ dev->reg.find_reg(0x6b).value |= REG_0x6B_GPO17|REG_0x6B_GPO18;
+ }
+
+ DBG(DBG_proc, "%s complete\n", __func__);
+}
+
+// Send slope table for motor movement slope_table in machine byte order
+static void gl841_send_slope_table(Genesys_Device* dev, int table_nr,
+ const std::vector<uint16_t>& slope_table,
+ int steps)
+{
+ DBG_HELPER_ARGS(dbg, "table_nr = %d, steps = %d", table_nr, steps);
+ int dpihw;
+ int start_address;
+ char msg[4000];
+/*#ifdef WORDS_BIGENDIAN*/
+ int i;
+/*#endif*/
+
+ 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 = 0x20000;
+ else {
+ throw SaneException("Unexpected dpihw");
+ }
+
+ std::vector<uint8_t> table(steps * 2);
+ for(i = 0; i < steps; i++) {
+ table[i * 2] = slope_table[i] & 0xff;
+ table[i * 2 + 1] = slope_table[i] >> 8;
+ }
+
+ if (DBG_LEVEL >= DBG_io)
+ {
+ std::sprintf(msg, "write slope %d (%d)=", table_nr, steps);
+ for (i = 0; i < steps; i++) {
+ std::sprintf (msg+strlen(msg), ",%d", slope_table[i]);
+ }
+ DBG(DBG_io, "%s: %s\n", __func__, msg);
+ }
+
+ if (dev->interface->is_mock()) {
+ dev->interface->record_slope_table(table_nr, slope_table);
+ }
+ dev->interface->write_buffer(0x3c, start_address + table_nr * 0x200, table.data(), steps * 2);
+}
+
+static void gl841_set_lide80_fe(Genesys_Device* dev, uint8_t set)
+{
+ DBG_HELPER(dbg);
+
+ if (set == AFE_INIT)
+ {
+ DBG(DBG_proc, "%s(): setting DAC %u\n", __func__,
+ static_cast<unsigned>(dev->model->adc_id));
+
+ dev->frontend = dev->frontend_initial;
+
+ // write them to analog frontend
+ dev->interface->write_fe_register(0x00, dev->frontend.regs.get_value(0x00));
+ dev->interface->write_fe_register(0x03, dev->frontend.regs.get_value(0x01));
+ dev->interface->write_fe_register(0x06, dev->frontend.regs.get_value(0x02));
+ }
+
+ if (set == AFE_SET)
+ {
+ dev->interface->write_fe_register(0x00, dev->frontend.regs.get_value(0x00));
+ dev->interface->write_fe_register(0x06, dev->frontend.regs.get_value(0x20));
+ dev->interface->write_fe_register(0x03, dev->frontend.regs.get_value(0x28));
+ }
+}
+
+// Set values of Analog Device type frontend
+static void gl841_set_ad_fe(Genesys_Device* dev, uint8_t set)
+{
+ DBG_HELPER(dbg);
+ int i;
+
+ if (dev->model->adc_id==AdcId::CANON_LIDE_80) {
+ gl841_set_lide80_fe(dev, set);
+ return;
+ }
+
+ if (set == AFE_INIT)
+ {
+ DBG(DBG_proc, "%s(): setting DAC %u\n", __func__,
+ static_cast<unsigned>(dev->model->adc_id));
+
+ dev->frontend = dev->frontend_initial;
+
+ // write them to analog frontend
+ dev->interface->write_fe_register(0x00, dev->frontend.regs.get_value(0x00));
+
+ dev->interface->write_fe_register(0x01, dev->frontend.regs.get_value(0x01));
+
+ for (i = 0; i < 6; i++) {
+ dev->interface->write_fe_register(0x02 + i, 0x00);
+ }
+ }
+ if (set == AFE_SET)
+ {
+ // write them to analog frontend
+ dev->interface->write_fe_register(0x00, dev->frontend.regs.get_value(0x00));
+
+ dev->interface->write_fe_register(0x01, dev->frontend.regs.get_value(0x01));
+
+ // Write fe 0x02 (red gain)
+ dev->interface->write_fe_register(0x02, dev->frontend.get_gain(0));
+
+ // Write fe 0x03 (green gain)
+ dev->interface->write_fe_register(0x03, dev->frontend.get_gain(1));
+
+ // Write fe 0x04 (blue gain)
+ dev->interface->write_fe_register(0x04, dev->frontend.get_gain(2));
+
+ // Write fe 0x05 (red offset)
+ dev->interface->write_fe_register(0x05, dev->frontend.get_offset(0));
+
+ // Write fe 0x06 (green offset)
+ dev->interface->write_fe_register(0x06, dev->frontend.get_offset(1));
+
+ // Write fe 0x07 (blue offset)
+ dev->interface->write_fe_register(0x07, dev->frontend.get_offset(2));
+ }
+}
+
+// Set values of analog frontend
+void CommandSetGl841::set_fe(Genesys_Device* dev, const Genesys_Sensor& sensor, uint8_t set) const
+{
+ DBG_HELPER_ARGS(dbg, "%s", set == AFE_INIT ? "init" :
+ set == AFE_SET ? "set" :
+ set == AFE_POWER_SAVE ? "powersave" : "huh?");
+ (void) sensor;
+
+ /* Analog Device type frontend */
+ uint8_t frontend_type = dev->reg.find_reg(0x04).value & REG_0x04_FESET;
+
+ if (frontend_type == 0x02) {
+ gl841_set_ad_fe(dev, set);
+ return;
+ }
+
+ if (frontend_type != 0x00) {
+ throw SaneException("unsupported frontend type %d", frontend_type);
+ }
+
+ if (set == AFE_INIT)
+ {
+ DBG(DBG_proc, "%s(): setting DAC %u\n", __func__,
+ static_cast<unsigned>(dev->model->adc_id));
+ dev->frontend = dev->frontend_initial;
+
+ // reset only done on init
+ dev->interface->write_fe_register(0x04, 0x80);
+ DBG(DBG_proc, "%s(): frontend reset complete\n", __func__);
+ }
+
+
+ if (set == AFE_POWER_SAVE)
+ {
+ dev->interface->write_fe_register(0x01, 0x02);
+ return;
+ }
+
+ /* todo : base this test on cfg reg3 or a CCD family flag to be created */
+ /*if (dev->model->ccd_type!=SensorId::CCD_HP2300 && dev->model->ccd_type!=SensorId::CCD_HP2400) */
+ {
+ dev->interface->write_fe_register(0x00, dev->frontend.regs.get_value(0x00));
+ dev->interface->write_fe_register(0x02, dev->frontend.regs.get_value(0x02));
+ }
+
+ dev->interface->write_fe_register(0x01, dev->frontend.regs.get_value(0x01));
+ dev->interface->write_fe_register(0x03, dev->frontend.regs.get_value(0x03));
+ dev->interface->write_fe_register(0x06, dev->frontend.reg2[0]);
+ dev->interface->write_fe_register(0x08, dev->frontend.reg2[1]);
+ dev->interface->write_fe_register(0x09, dev->frontend.reg2[2]);
+
+ for (unsigned i = 0; i < 3; i++) {
+ dev->interface->write_fe_register(0x24 + i, dev->frontend.regs.get_value(0x24 + i));
+ dev->interface->write_fe_register(0x28 + i, dev->frontend.get_gain(i));
+ dev->interface->write_fe_register(0x20 + i, dev->frontend.get_offset(i));
+ }
+}
+
+enum MotorAction {
+ MOTOR_ACTION_FEED = 1,
+ MOTOR_ACTION_GO_HOME = 2,
+ MOTOR_ACTION_HOME_FREE = 3
+};
+
+// @brief turn off motor
+static void gl841_init_motor_regs_off(Genesys_Register_Set* reg, unsigned int scan_lines)
+{
+ DBG_HELPER_ARGS(dbg, "scan_lines=%d", scan_lines);
+ unsigned int feedl;
+ GenesysRegister* r;
+
+ feedl = 2;
+
+ r = sanei_genesys_get_address (reg, 0x3d);
+ r->value = (feedl >> 16) & 0xf;
+ r = sanei_genesys_get_address (reg, 0x3e);
+ r->value = (feedl >> 8) & 0xff;
+ r = sanei_genesys_get_address (reg, 0x3f);
+ r->value = feedl & 0xff;
+ r = sanei_genesys_get_address (reg, 0x5e);
+ r->value &= ~0xe0;
+
+ r = sanei_genesys_get_address (reg, 0x25);
+ r->value = (scan_lines >> 16) & 0xf;
+ r = sanei_genesys_get_address (reg, 0x26);
+ r->value = (scan_lines >> 8) & 0xff;
+ r = sanei_genesys_get_address (reg, 0x27);
+ r->value = scan_lines & 0xff;
+
+ r = sanei_genesys_get_address (reg, 0x02);
+ r->value &= ~0x01; /*LONGCURV OFF*/
+ r->value &= ~0x80; /*NOT_HOME OFF*/
+
+ r->value &= ~0x10;
+
+ r->value &= ~0x06;
+
+ r->value &= ~0x08;
+
+ r->value &= ~0x20;
+
+ r->value &= ~0x40;
+
+ r = sanei_genesys_get_address (reg, 0x67);
+ r->value = 0x3f;
+
+ r = sanei_genesys_get_address (reg, 0x68);
+ r->value = 0x3f;
+
+ r = sanei_genesys_get_address(reg, REG_STEPNO);
+ r->value = 0;
+
+ r = sanei_genesys_get_address(reg, REG_FASTNO);
+ r->value = 0;
+
+ r = sanei_genesys_get_address (reg, 0x69);
+ r->value = 0;
+
+ r = sanei_genesys_get_address (reg, 0x6a);
+ r->value = 0;
+
+ r = sanei_genesys_get_address (reg, 0x5f);
+ r->value = 0;
+}
+
+/** @brief write motor table frequency
+ * Write motor frequency data table.
+ * @param dev device to set up motor
+ * @param ydpi motor target resolution
+ */
+static void gl841_write_freq(Genesys_Device* dev, unsigned int ydpi)
+{
+ DBG_HELPER(dbg);
+/**< fast table */
+uint8_t tdefault[] = {0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0x36,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xb6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0xf6,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76,0x18,0x76};
+uint8_t t1200[] = {0xc7,0x31,0xc7,0x31,0xc7,0x31,0xc7,0x31,0xc7,0x31,0xc7,0x31,0xc7,0x31,0xc7,0x31,0xc0,0x11,0xc0,0x11,0xc0,0x11,0xc0,0x11,0xc0,0x11,0xc0,0x11,0xc0,0x11,0xc0,0x11,0xc7,0xb1,0xc7,0xb1,0xc7,0xb1,0xc7,0xb1,0xc7,0xb1,0xc7,0xb1,0xc7,0xb1,0xc7,0xb1,0x07,0xe0,0x07,0xe0,0x07,0xe0,0x07,0xe0,0x07,0xe0,0x07,0xe0,0x07,0xe0,0x07,0xe0,0xc7,0xf1,0xc7,0xf1,0xc7,0xf1,0xc7,0xf1,0xc7,0xf1,0xc7,0xf1,0xc7,0xf1,0xc7,0xf1,0xc0,0x51,0xc0,0x51,0xc0,0x51,0xc0,0x51,0xc0,0x51,0xc0,0x51,0xc0,0x51,0xc0,0x51,0xc7,0x71,0xc7,0x71,0xc7,0x71,0xc7,0x71,0xc7,0x71,0xc7,0x71,0xc7,0x71,0xc7,0x71,0x07,0x20,0x07,0x20,0x07,0x20,0x07,0x20,0x07,0x20,0x07,0x20,0x07,0x20,0x07,0x20};
+uint8_t t300[] = {0x08,0x32,0x08,0x32,0x08,0x32,0x08,0x32,0x08,0x32,0x08,0x32,0x08,0x32,0x08,0x32,0x00,0x13,0x00,0x13,0x00,0x13,0x00,0x13,0x00,0x13,0x00,0x13,0x00,0x13,0x00,0x13,0x08,0xb2,0x08,0xb2,0x08,0xb2,0x08,0xb2,0x08,0xb2,0x08,0xb2,0x08,0xb2,0x08,0xb2,0x0c,0xa0,0x0c,0xa0,0x0c,0xa0,0x0c,0xa0,0x0c,0xa0,0x0c,0xa0,0x0c,0xa0,0x0c,0xa0,0x08,0xf2,0x08,0xf2,0x08,0xf2,0x08,0xf2,0x08,0xf2,0x08,0xf2,0x08,0xf2,0x08,0xf2,0x00,0xd3,0x00,0xd3,0x00,0xd3,0x00,0xd3,0x00,0xd3,0x00,0xd3,0x00,0xd3,0x00,0xd3,0x08,0x72,0x08,0x72,0x08,0x72,0x08,0x72,0x08,0x72,0x08,0x72,0x08,0x72,0x08,0x72,0x0c,0x60,0x0c,0x60,0x0c,0x60,0x0c,0x60,0x0c,0x60,0x0c,0x60,0x0c,0x60,0x0c,0x60};
+uint8_t t150[] = {0x0c,0x33,0xcf,0x33,0xcf,0x33,0xcf,0x33,0xcf,0x33,0xcf,0x33,0xcf,0x33,0xcf,0x33,0x40,0x14,0x80,0x15,0x80,0x15,0x80,0x15,0x80,0x15,0x80,0x15,0x80,0x15,0x80,0x15,0x0c,0xb3,0xcf,0xb3,0xcf,0xb3,0xcf,0xb3,0xcf,0xb3,0xcf,0xb3,0xcf,0xb3,0xcf,0xb3,0x11,0xa0,0x16,0xa0,0x16,0xa0,0x16,0xa0,0x16,0xa0,0x16,0xa0,0x16,0xa0,0x16,0xa0,0x0c,0xf3,0xcf,0xf3,0xcf,0xf3,0xcf,0xf3,0xcf,0xf3,0xcf,0xf3,0xcf,0xf3,0xcf,0xf3,0x40,0xd4,0x80,0xd5,0x80,0xd5,0x80,0xd5,0x80,0xd5,0x80,0xd5,0x80,0xd5,0x80,0xd5,0x0c,0x73,0xcf,0x73,0xcf,0x73,0xcf,0x73,0xcf,0x73,0xcf,0x73,0xcf,0x73,0xcf,0x73,0x11,0x60,0x16,0x60,0x16,0x60,0x16,0x60,0x16,0x60,0x16,0x60,0x16,0x60,0x16,0x60};
+
+uint8_t *table;
+
+ if(dev->model->motor_id == MotorId::CANON_LIDE_80) {
+ switch(ydpi)
+ {
+ case 3600:
+ case 1200:
+ table=t1200;
+ break;
+ case 900:
+ case 300:
+ table=t300;
+ break;
+ case 450:
+ case 150:
+ table=t150;
+ break;
+ default:
+ table=tdefault;
+ }
+ dev->interface->write_register(0x66, 0x00);
+ dev->interface->write_gamma(0x28, 0xc000, table, 128,
+ ScannerInterface::FLAG_SWAP_REGISTERS);
+ dev->interface->write_register(0x5b, 0x00);
+ dev->interface->write_register(0x5c, 0x00);
+ }
+}
+
+
+static void gl841_init_motor_regs(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* reg, unsigned int feed_steps,/*1/base_ydpi*/
+ /*maybe float for half/quarter step resolution?*/
+ unsigned int action, MotorFlag flags)
+{
+ DBG_HELPER_ARGS(dbg, "feed_steps=%d, action=%d, flags=%x", feed_steps, action,
+ static_cast<unsigned>(flags));
+ unsigned int fast_exposure = 0;
+ int use_fast_fed = 0;
+ unsigned int feedl;
+ GenesysRegister* r;
+/*number of scan lines to add in a scan_lines line*/
+
+ {
+ std::vector<uint16_t> table;
+ table.resize(256, 0xffff);
+
+ gl841_send_slope_table(dev, 0, table, 256);
+ gl841_send_slope_table(dev, 1, table, 256);
+ gl841_send_slope_table(dev, 2, table, 256);
+ gl841_send_slope_table(dev, 3, table, 256);
+ gl841_send_slope_table(dev, 4, table, 256);
+ }
+
+ gl841_write_freq(dev, dev->motor.base_ydpi / 4);
+
+ if (action == MOTOR_ACTION_FEED || action == MOTOR_ACTION_GO_HOME) {
+ /* FEED and GO_HOME can use fastest slopes available */
+ fast_exposure = gl841_exposure_time(dev, sensor,
+ dev->motor.base_ydpi / 4,
+ StepType::FULL,
+ 0,
+ 0);
+ DBG(DBG_info, "%s : fast_exposure=%d pixels\n", __func__, fast_exposure);
+ }
+
+ if (action == MOTOR_ACTION_HOME_FREE) {
+/* HOME_FREE must be able to stop in one step, so do not try to get faster */
+ fast_exposure = dev->motor.get_slope(StepType::FULL).max_speed_w;
+ }
+
+ auto fast_table = sanei_genesys_create_slope_table3(dev->model->asic_type, dev->motor,
+ StepType::FULL, fast_exposure,
+ dev->motor.base_ydpi / 4);
+
+ feedl = feed_steps - fast_table.steps_count * 2;
+ use_fast_fed = 1;
+
+/* all needed slopes available. we did even decide which mode to use.
+ what next?
+ - transfer slopes
+SCAN:
+flags \ use_fast_fed ! 0 1
+------------------------\--------------------
+ 0 ! 0,1,2 0,1,2,3
+MotorFlag::AUTO_GO_HOME ! 0,1,2,4 0,1,2,3,4
+OFF: none
+FEED: 3
+GO_HOME: 3
+HOME_FREE: 3
+ - setup registers
+ * slope specific registers (already done)
+ * DECSEL for HOME_FREE/GO_HOME/SCAN
+ * FEEDL
+ * MTRREV
+ * MTRPWR
+ * FASTFED
+ * STEPSEL
+ * MTRPWM
+ * FSTPSEL
+ * FASTPWM
+ * HOMENEG
+ * BWDSTEP
+ * FWDSTEP
+ * Z1
+ * Z2
+ */
+
+ r = sanei_genesys_get_address(reg, 0x3d);
+ r->value = (feedl >> 16) & 0xf;
+ r = sanei_genesys_get_address(reg, 0x3e);
+ r->value = (feedl >> 8) & 0xff;
+ r = sanei_genesys_get_address(reg, 0x3f);
+ r->value = feedl & 0xff;
+ r = sanei_genesys_get_address(reg, 0x5e);
+ r->value &= ~0xe0;
+
+ r = sanei_genesys_get_address(reg, 0x25);
+ r->value = 0;
+ r = sanei_genesys_get_address(reg, 0x26);
+ r->value = 0;
+ r = sanei_genesys_get_address(reg, 0x27);
+ r->value = 0;
+
+ r = sanei_genesys_get_address(reg, 0x02);
+ r->value &= ~0x01; /*LONGCURV OFF*/
+ r->value &= ~0x80; /*NOT_HOME OFF*/
+
+ r->value |= 0x10;
+
+ if (action == MOTOR_ACTION_GO_HOME)
+ r->value |= 0x06;
+ else
+ r->value &= ~0x06;
+
+ if (use_fast_fed)
+ r->value |= 0x08;
+ else
+ r->value &= ~0x08;
+
+ if (has_flag(flags, MotorFlag::AUTO_GO_HOME)) {
+ r->value |= 0x20;
+ } else {
+ r->value &= ~0x20;
+ }
+
+ r->value &= ~0x40;
+
+ if (has_flag(flags, MotorFlag::REVERSE)) {
+ r->value |= REG_0x02_MTRREV;
+ }
+
+ gl841_send_slope_table(dev, 3, fast_table.table, 256);
+
+ r = sanei_genesys_get_address(reg, 0x67);
+ r->value = 0x3f;
+
+ r = sanei_genesys_get_address(reg, 0x68);
+ r->value = 0x3f;
+
+ r = sanei_genesys_get_address(reg, REG_STEPNO);
+ r->value = 0;
+
+ r = sanei_genesys_get_address(reg, REG_FASTNO);
+ r->value = 0;
+
+ r = sanei_genesys_get_address(reg, 0x69);
+ r->value = 0;
+
+ r = sanei_genesys_get_address(reg, 0x6a);
+ r->value = (fast_table.steps_count >> 1) + (fast_table.steps_count & 1);
+
+ r = sanei_genesys_get_address(reg, 0x5f);
+ r->value = (fast_table.steps_count >> 1) + (fast_table.steps_count & 1);
+}
+
+static void gl841_init_motor_regs_scan(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* reg,
+ unsigned int scan_exposure_time,/*pixel*/
+ unsigned scan_yres, // dpi, motor resolution
+ StepType scan_step_type,
+ unsigned int scan_lines,/*lines, scan resolution*/
+ unsigned int scan_dummy,
+ // number of scan lines to add in a scan_lines line
+ unsigned int feed_steps,/*1/base_ydpi*/
+ // maybe float for half/quarter step resolution?
+ MotorFlag flags)
+{
+ DBG_HELPER_ARGS(dbg, "scan_exposure_time=%d, scan_yres=%d, scan_step_type=%d, scan_lines=%d,"
+ " scan_dummy=%d, feed_steps=%d, flags=%x",
+ scan_exposure_time, scan_yres, static_cast<unsigned>(scan_step_type),
+ scan_lines, scan_dummy, feed_steps, static_cast<unsigned>(flags));
+ unsigned int fast_exposure;
+ int use_fast_fed = 0;
+ unsigned int fast_time;
+ unsigned int slow_time;
+ unsigned int feedl;
+ GenesysRegister* r;
+ unsigned int min_restep = 0x20;
+ uint32_t z1, z2;
+
+ fast_exposure = gl841_exposure_time(dev, sensor,
+ dev->motor.base_ydpi / 4,
+ StepType::FULL,
+ 0,
+ 0);
+
+ DBG(DBG_info, "%s : fast_exposure=%d pixels\n", __func__, fast_exposure);
+
+ {
+ std::vector<uint16_t> table;
+ table.resize(256, 0xffff);
+
+ gl841_send_slope_table(dev, 0, table, 256);
+ gl841_send_slope_table(dev, 1, table, 256);
+ gl841_send_slope_table(dev, 2, table, 256);
+ gl841_send_slope_table(dev, 3, table, 256);
+ gl841_send_slope_table(dev, 4, table, 256);
+ }
+
+
+ /* motor frequency table */
+ gl841_write_freq(dev, scan_yres);
+
+/*
+ we calculate both tables for SCAN. the fast slope step count depends on
+ how many steps we need for slow acceleration and how much steps we are
+ allowed to use.
+ */
+
+ auto slow_table = sanei_genesys_create_slope_table3(dev->model->asic_type, dev->motor,
+ scan_step_type, scan_exposure_time,
+ scan_yres);
+
+ auto back_table = sanei_genesys_create_slope_table3(dev->model->asic_type, dev->motor,
+ scan_step_type, 0, scan_yres);
+
+ if (feed_steps < (slow_table.steps_count >> static_cast<unsigned>(scan_step_type))) {
+ /*TODO: what should we do here?? go back to exposure calculation?*/
+ feed_steps = slow_table.steps_count >> static_cast<unsigned>(scan_step_type);
+ }
+
+ auto fast_table = sanei_genesys_create_slope_table3(dev->model->asic_type, dev->motor,
+ StepType::FULL, fast_exposure,
+ dev->motor.base_ydpi / 4);
+
+ unsigned max_fast_slope_steps_count = 1;
+ if (feed_steps > (slow_table.steps_count >> static_cast<unsigned>(scan_step_type)) + 2) {
+ max_fast_slope_steps_count = (feed_steps -
+ (slow_table.steps_count >> static_cast<unsigned>(scan_step_type))) / 2;
+ }
+
+ if (fast_table.steps_count > max_fast_slope_steps_count) {
+ fast_table.slice_steps(max_fast_slope_steps_count);
+ }
+
+ /* fast fed special cases handling */
+ if (dev->model->gpio_id == GpioId::XP300
+ || dev->model->gpio_id == GpioId::DP685)
+ {
+ /* quirk: looks like at least this scanner is unable to use
+ 2-feed mode */
+ use_fast_fed = 0;
+ }
+ else if (feed_steps < fast_table.steps_count * 2 +
+ (slow_table.steps_count >> static_cast<unsigned>(scan_step_type)))
+ {
+ use_fast_fed = 0;
+ DBG(DBG_info, "%s: feed too short, slow move forced.\n", __func__);
+ } else {
+/* for deciding whether we should use fast mode we need to check how long we
+ need for (fast)accelerating, moving, decelerating, (TODO: stopping?)
+ (slow)accelerating again versus (slow)accelerating and moving. we need
+ fast and slow tables here.
+*/
+/*NOTE: scan_exposure_time is per scan_yres*/
+/*NOTE: fast_exposure is per base_ydpi/4*/
+/*we use full steps as base unit here*/
+ fast_time =
+ fast_exposure / 4 *
+ (feed_steps - fast_table.steps_count*2 -
+ (slow_table.steps_count >> static_cast<unsigned>(scan_step_type)))
+ + fast_table.pixeltime_sum*2 + slow_table.pixeltime_sum;
+ slow_time =
+ (scan_exposure_time * scan_yres) / dev->motor.base_ydpi *
+ (feed_steps - (slow_table.steps_count >> static_cast<unsigned>(scan_step_type)))
+ + slow_table.pixeltime_sum;
+
+ DBG(DBG_info, "%s: Time for slow move: %d\n", __func__, slow_time);
+ DBG(DBG_info, "%s: Time for fast move: %d\n", __func__, fast_time);
+
+ use_fast_fed = fast_time < slow_time;
+ }
+
+ if (use_fast_fed) {
+ feedl = feed_steps - fast_table.steps_count * 2 -
+ (slow_table.steps_count >> static_cast<unsigned>(scan_step_type));
+ } else if ((feed_steps << static_cast<unsigned>(scan_step_type)) < slow_table.steps_count) {
+ feedl = 0;
+ } else {
+ feedl = (feed_steps << static_cast<unsigned>(scan_step_type)) - slow_table.steps_count;
+ }
+ DBG(DBG_info, "%s: Decided to use %s mode\n", __func__, use_fast_fed?"fast feed":"slow feed");
+
+/* all needed slopes available. we did even decide which mode to use.
+ what next?
+ - transfer slopes
+SCAN:
+flags \ use_fast_fed ! 0 1
+------------------------\--------------------
+ 0 ! 0,1,2 0,1,2,3
+MotorFlag::AUTO_GO_HOME ! 0,1,2,4 0,1,2,3,4
+OFF: none
+FEED: 3
+GO_HOME: 3
+HOME_FREE: 3
+ - setup registers
+ * slope specific registers (already done)
+ * DECSEL for HOME_FREE/GO_HOME/SCAN
+ * FEEDL
+ * MTRREV
+ * MTRPWR
+ * FASTFED
+ * STEPSEL
+ * MTRPWM
+ * FSTPSEL
+ * FASTPWM
+ * HOMENEG
+ * BWDSTEP
+ * FWDSTEP
+ * Z1
+ * Z2
+ */
+
+ r = sanei_genesys_get_address (reg, 0x3d);
+ r->value = (feedl >> 16) & 0xf;
+ r = sanei_genesys_get_address (reg, 0x3e);
+ r->value = (feedl >> 8) & 0xff;
+ r = sanei_genesys_get_address (reg, 0x3f);
+ r->value = feedl & 0xff;
+ r = sanei_genesys_get_address (reg, 0x5e);
+ r->value &= ~0xe0;
+
+ r = sanei_genesys_get_address (reg, 0x25);
+ r->value = (scan_lines >> 16) & 0xf;
+ r = sanei_genesys_get_address (reg, 0x26);
+ r->value = (scan_lines >> 8) & 0xff;
+ r = sanei_genesys_get_address (reg, 0x27);
+ r->value = scan_lines & 0xff;
+
+ r = sanei_genesys_get_address (reg, 0x02);
+ r->value &= ~0x01; /*LONGCURV OFF*/
+ r->value &= ~0x80; /*NOT_HOME OFF*/
+ r->value |= 0x10;
+
+ r->value &= ~0x06;
+
+ if (use_fast_fed)
+ r->value |= 0x08;
+ else
+ r->value &= ~0x08;
+
+ if (has_flag(flags, MotorFlag::AUTO_GO_HOME))
+ r->value |= 0x20;
+ else
+ r->value &= ~0x20;
+
+ if (has_flag(flags, MotorFlag::DISABLE_BUFFER_FULL_MOVE)) {
+ r->value |= 0x40;
+ } else {
+ r->value &= ~0x40;
+ }
+
+ gl841_send_slope_table(dev, 0, slow_table.table, 256);
+
+ gl841_send_slope_table(dev, 1, back_table.table, 256);
+
+ gl841_send_slope_table(dev, 2, slow_table.table, 256);
+
+ if (use_fast_fed) {
+ gl841_send_slope_table(dev, 3, fast_table.table, 256);
+ }
+
+ if (has_flag(flags, MotorFlag::AUTO_GO_HOME)) {
+ gl841_send_slope_table(dev, 4, fast_table.table, 256);
+ }
+
+/* now reg 0x21 and 0x24 are available, we can calculate reg 0x22 and 0x23,
+ reg 0x60-0x62 and reg 0x63-0x65
+ rule:
+ 2*STEPNO+FWDSTEP=2*FASTNO+BWDSTEP
+*/
+/* steps of table 0*/
+ if (min_restep < slow_table.steps_count * 2 + 2) {
+ min_restep = slow_table.steps_count * 2 + 2;
+ }
+/* steps of table 1*/
+ if (min_restep < back_table.steps_count * 2 + 2) {
+ min_restep = back_table.steps_count * 2 + 2;
+ }
+/* steps of table 0*/
+ r = sanei_genesys_get_address(reg, REG_FWDSTEP);
+ r->value = min_restep - slow_table.steps_count*2;
+/* steps of table 1*/
+ r = sanei_genesys_get_address(reg, REG_BWDSTEP);
+ r->value = min_restep - back_table.steps_count*2;
+
+/*
+ for z1/z2:
+ in dokumentation mentioned variables a-d:
+ a = time needed for acceleration, table 1
+ b = time needed for reg 0x1f... wouldn't that be reg0x1f*exposure_time?
+ c = time needed for acceleration, table 1
+ d = time needed for reg 0x22... wouldn't that be reg0x22*exposure_time?
+ z1 = (c+d-1) % exposure_time
+ z2 = (a+b-1) % exposure_time
+*/
+/* i don't see any effect of this. i can only guess that this will enhance
+ sub-pixel accuracy
+ z1 = (slope_0_time-1) % exposure_time;
+ z2 = (slope_0_time-1) % exposure_time;
+*/
+ z1 = z2 = 0;
+
+ DBG(DBG_info, "%s: z1 = %d\n", __func__, z1);
+ DBG(DBG_info, "%s: z2 = %d\n", __func__, z2);
+ r = sanei_genesys_get_address (reg, 0x60);
+ r->value = ((z1 >> 16) & 0xff);
+ r = sanei_genesys_get_address (reg, 0x61);
+ r->value = ((z1 >> 8) & 0xff);
+ r = sanei_genesys_get_address (reg, 0x62);
+ r->value = (z1 & 0xff);
+ r = sanei_genesys_get_address (reg, 0x63);
+ r->value = ((z2 >> 16) & 0xff);
+ r = sanei_genesys_get_address (reg, 0x64);
+ r->value = ((z2 >> 8) & 0xff);
+ r = sanei_genesys_get_address (reg, 0x65);
+ r->value = (z2 & 0xff);
+
+ r = sanei_genesys_get_address(reg, REG_0x1E);
+ r->value &= REG_0x1E_WDTIME;
+ r->value |= scan_dummy;
+
+ r = sanei_genesys_get_address (reg, 0x67);
+ r->value = 0x3f | (static_cast<unsigned>(scan_step_type) << 6);
+
+ r = sanei_genesys_get_address (reg, 0x68);
+ r->value = 0x3f;
+
+ r = sanei_genesys_get_address(reg, REG_STEPNO);
+ r->value = (slow_table.steps_count >> 1) + (slow_table.steps_count & 1);
+
+ r = sanei_genesys_get_address(reg, REG_FASTNO);
+ r->value = (back_table.steps_count >> 1) + (back_table.steps_count & 1);
+
+ r = sanei_genesys_get_address (reg, 0x69);
+ r->value = (slow_table.steps_count >> 1) + (slow_table.steps_count & 1);
+
+ r = sanei_genesys_get_address (reg, 0x6a);
+ r->value = (fast_table.steps_count >> 1) + (fast_table.steps_count & 1);
+
+ r = sanei_genesys_get_address (reg, 0x5f);
+ r->value = (fast_table.steps_count >> 1) + (fast_table.steps_count & 1);
+}
+
+static int
+gl841_get_dpihw(Genesys_Device * dev)
+{
+ GenesysRegister* r;
+ r = sanei_genesys_get_address(&dev->reg, 0x05);
+ if ((r->value & REG_0x05_DPIHW) == REG_0x05_DPIHW_600) {
+ return 600;
+ }
+ if ((r->value & REG_0x05_DPIHW) == REG_0x05_DPIHW_1200) {
+ return 1200;
+ }
+ if ((r->value & REG_0x05_DPIHW) == REG_0x05_DPIHW_2400) {
+ return 2400;
+ }
+ return 0;
+}
+
+static void gl841_init_optical_regs_scan(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* reg, unsigned int exposure_time,
+ const ScanSession& session)
+{
+ DBG_HELPER_ARGS(dbg, "exposure_time=%d", exposure_time);
+ GenesysRegister* r;
+ uint16_t expavg, expr, expb, expg;
+
+ dev->cmd_set->set_fe(dev, sensor, AFE_SET);
+
+ /* gpio part.*/
+ if (dev->model->gpio_id == GpioId::CANON_LIDE_35) {
+ r = sanei_genesys_get_address(reg, REG_0x6C);
+ if (session.ccd_size_divisor > 1) {
+ r->value &= ~0x80;
+ } else {
+ r->value |= 0x80;
+ }
+ }
+ if (dev->model->gpio_id == GpioId::CANON_LIDE_80) {
+ r = sanei_genesys_get_address(reg, REG_0x6C);
+ if (session.ccd_size_divisor > 1) {
+ r->value &= ~0x40;
+ r->value |= 0x20;
+ } else {
+ r->value &= ~0x20;
+ r->value |= 0x40;
+ }
+ }
+
+ /* enable shading */
+ r = sanei_genesys_get_address (reg, 0x01);
+ r->value |= REG_0x01_SCAN;
+ if (has_flag(session.params.flags, ScanFlag::DISABLE_SHADING) ||
+ (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION)) {
+ r->value &= ~REG_0x01_DVDSET;
+ } else {
+ r->value |= REG_0x01_DVDSET;
+ }
+
+ /* average looks better than deletion, and we are already set up to
+ use one of the average enabled resolutions
+ */
+ r = sanei_genesys_get_address (reg, 0x03);
+ r->value |= REG_0x03_AVEENB;
+ sanei_genesys_set_lamp_power(dev, sensor, *reg,
+ !has_flag(session.params.flags, ScanFlag::DISABLE_LAMP));
+
+ /* BW threshold */
+ r = sanei_genesys_get_address (reg, 0x2e);
+ r->value = dev->settings.threshold;
+ r = sanei_genesys_get_address (reg, 0x2f);
+ r->value = dev->settings.threshold;
+
+
+ /* monochrome / color scan */
+ r = sanei_genesys_get_address (reg, 0x04);
+ switch (session.params.depth) {
+ case 8:
+ r->value &= ~(REG_0x04_LINEART | REG_0x04_BITSET);
+ break;
+ case 16:
+ r->value &= ~REG_0x04_LINEART;
+ r->value |= REG_0x04_BITSET;
+ break;
+ }
+
+ /* AFEMOD should depend on FESET, and we should set these
+ * bits separately */
+ r->value &= ~(REG_0x04_FILTER | REG_0x04_AFEMOD);
+ if (has_flag(session.params.flags, ScanFlag::ENABLE_LEDADD)) {
+ r->value |= 0x10; /* no filter */
+ }
+ else if (session.params.channels == 1)
+ {
+ switch (session.params.color_filter)
+ {
+ case ColorFilter::RED:
+ r->value |= 0x14;
+ break;
+ case ColorFilter::GREEN:
+ r->value |= 0x18;
+ break;
+ case ColorFilter::BLUE:
+ r->value |= 0x1c;
+ break;
+ default:
+ r->value |= 0x10;
+ break;
+ }
+ }
+ else
+ {
+ if (dev->model->sensor_id == SensorId::CCD_PLUSTEK_OPTICPRO_3600) {
+ r->value |= 0x22; /* slow color pixel by pixel */
+ }
+ else
+ {
+ r->value |= 0x10; /* color pixel by pixel */
+ }
+ }
+
+ /* CIS scanners can do true gray by setting LEDADD */
+ r = sanei_genesys_get_address (reg, 0x87);
+ r->value &= ~REG_0x87_LEDADD;
+ if (has_flag(session.params.flags, ScanFlag::ENABLE_LEDADD)) {
+ r->value |= REG_0x87_LEDADD;
+ expr = reg->get16(REG_EXPR);
+ expg = reg->get16(REG_EXPG);
+ expb = reg->get16(REG_EXPB);
+
+ /* use minimal exposure for best image quality */
+ expavg = expg;
+ if (expr < expg)
+ expavg = expr;
+ if (expb < expavg)
+ expavg = expb;
+
+ dev->reg.set16(REG_EXPR, expavg);
+ dev->reg.set16(REG_EXPG, expavg);
+ dev->reg.set16(REG_EXPB, expavg);
+ }
+
+ // enable gamma tables
+ if (should_enable_gamma(session, sensor)) {
+ reg->find_reg(REG_0x05).value |= REG_0x05_GMMENB;
+ } else {
+ reg->find_reg(REG_0x05).value &= ~REG_0x05_GMMENB;
+ }
+
+ /* sensor parameters */
+ sanei_gl841_setup_sensor(dev, sensor, &dev->reg, 1, session.ccd_size_divisor);
+
+ r = sanei_genesys_get_address (reg, 0x29);
+ r->value = 255; /*<<<"magic" number, only suitable for cis*/
+
+ reg->set16(REG_DPISET, gl841_get_dpihw(dev) * session.output_resolution / session.optical_resolution);
+ reg->set16(REG_STRPIXEL, session.pixel_startx);
+ reg->set16(REG_ENDPIXEL, session.pixel_endx);
+
+ reg->set24(REG_MAXWD, session.output_line_bytes);
+
+ reg->set16(REG_LPERIOD, exposure_time);
+
+ r = sanei_genesys_get_address (reg, 0x34);
+ r->value = sensor.dummy_pixel;
+}
+
+static int
+gl841_get_led_exposure(Genesys_Device * dev, const Genesys_Sensor& sensor)
+{
+ int d,r,g,b,m;
+ if (!dev->model->is_cis)
+ return 0;
+ d = dev->reg.find_reg(0x19).value;
+
+ r = sensor.exposure.red;
+ g = sensor.exposure.green;
+ b = sensor.exposure.blue;
+
+ m = r;
+ if (m < g)
+ m = g;
+ if (m < b)
+ m = b;
+
+ return m + d;
+}
+
+/** @brief compute exposure time
+ * Compute exposure time for the device and the given scan resolution
+ */
+static int
+gl841_exposure_time(Genesys_Device *dev, const Genesys_Sensor& sensor,
+ float slope_dpi,
+ StepType scan_step_type,
+ int start,
+ int used_pixels)
+{
+int exposure_time = 0;
+int led_exposure;
+
+ led_exposure=gl841_get_led_exposure(dev, sensor);
+ exposure_time = sanei_genesys_exposure_time2(
+ dev,
+ slope_dpi,
+ scan_step_type,
+ start+used_pixels,/*+tgtime? currently done in sanei_genesys_exposure_time2 with tgtime = 32 pixel*/
+ led_exposure);
+
+ return exposure_time;
+}
+
+/**@brief compute scan_step_type
+ * Try to do at least 4 steps per line. if that is impossible we will have to
+ * live with that.
+ * @param dev device
+ * @param yres motor resolution
+ */
+static StepType gl841_scan_step_type(Genesys_Device *dev, int yres)
+{
+ StepType type = StepType::FULL;
+
+ /* TODO : check if there is a bug around the use of max_step_type */
+ /* should be <=1, need to chek all devices entry in genesys_devices */
+ if (yres * 4 < dev->motor.base_ydpi || dev->motor.max_step_type() == StepType::FULL) {
+ type = StepType::FULL;
+ } else if (yres * 4 < dev->motor.base_ydpi * 2 ||
+ dev->motor.max_step_type() <= StepType::HALF)
+ {
+ type = StepType::HALF;
+ } else {
+ type = StepType::QUARTER;
+ }
+
+ /* this motor behaves differently */
+ if (dev->model->motor_id==MotorId::CANON_LIDE_80) {
+ // driven by 'frequency' tables ?
+ type = StepType::FULL;
+ }
+
+ return type;
+}
+
+void CommandSetGl841::init_regs_for_scan_session(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* reg,
+ const ScanSession& session) const
+{
+ DBG_HELPER(dbg);
+ session.assert_computed();
+
+ int move;
+ int exposure_time;
+
+ int slope_dpi = 0;
+ int dummy = 0;
+
+/*
+results:
+
+for scanner:
+start
+end
+dpiset
+exposure_time
+dummy
+z1
+z2
+
+for ordered_read:
+ dev->words_per_line
+ dev->read_factor
+ dev->requested_buffer_size
+ dev->read_buffer_size
+ dev->read_pos
+ dev->read_bytes_in_buffer
+ dev->read_bytes_left
+ dev->max_shift
+ dev->stagger
+
+independent of our calculated values:
+ dev->total_bytes_read
+ dev->bytes_to_read
+ */
+
+/* dummy */
+ /* dummy lines: may not be usefull, for instance 250 dpi works with 0 or 1
+ dummy line. Maybe the dummy line adds correctness since the motor runs
+ slower (higher dpi)
+ */
+/* for cis this creates better aligned color lines:
+dummy \ scanned lines
+ 0: R G B R ...
+ 1: R G B - R ...
+ 2: R G B - - R ...
+ 3: R G B - - - R ...
+ 4: R G B - - - - R ...
+ 5: R G B - - - - - R ...
+ 6: R G B - - - - - - R ...
+ 7: R G B - - - - - - - R ...
+ 8: R G B - - - - - - - - R ...
+ 9: R G B - - - - - - - - - R ...
+ 10: R G B - - - - - - - - - - R ...
+ 11: R G B - - - - - - - - - - - R ...
+ 12: R G B - - - - - - - - - - - - R ...
+ 13: R G B - - - - - - - - - - - - - R ...
+ 14: R G B - - - - - - - - - - - - - - R ...
+ 15: R G B - - - - - - - - - - - - - - - R ...
+ -- pierre
+ */
+ dummy = 0;
+
+/* slope_dpi */
+/* cis color scan is effectively a gray scan with 3 gray lines per color
+ line and a FILTER of 0 */
+ if (dev->model->is_cis) {
+ slope_dpi = session.params.yres* session.params.channels;
+ } else {
+ slope_dpi = session.params.yres;
+ }
+
+ slope_dpi = slope_dpi * (1 + dummy);
+
+ StepType scan_step_type = gl841_scan_step_type(dev, session.params.yres);
+ exposure_time = gl841_exposure_time(dev, sensor,
+ slope_dpi,
+ scan_step_type,
+ session.pixel_startx,
+ session.optical_pixels);
+ DBG(DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time);
+
+ gl841_init_optical_regs_scan(dev, sensor, reg, exposure_time, session);
+
+ move = session.params.starty;
+ DBG(DBG_info, "%s: move=%d steps\n", __func__, move);
+
+ /* subtract current head position */
+ move -= (dev->head_pos(ScanHeadId::PRIMARY) * session.params.yres) / dev->motor.base_ydpi;
+ DBG(DBG_info, "%s: move=%d steps\n", __func__, move);
+
+ if (move < 0)
+ move = 0;
+
+ /* round it */
+/* the move is not affected by dummy -- pierre */
+/* move = ((move + dummy) / (dummy + 1)) * (dummy + 1);
+ DBG(DBG_info, "%s: move=%d steps\n", __func__, move);*/
+
+ if (has_flag(session.params.flags, ScanFlag::SINGLE_LINE)) {
+ gl841_init_motor_regs_off(reg, dev->model->is_cis ? session.output_line_count * session.params.channels
+ : session.output_line_count);
+ } else {
+ auto motor_flag = has_flag(session.params.flags, ScanFlag::DISABLE_BUFFER_FULL_MOVE) ?
+ MotorFlag::DISABLE_BUFFER_FULL_MOVE : MotorFlag::NONE;
+
+ gl841_init_motor_regs_scan(dev, sensor, reg, exposure_time, slope_dpi, scan_step_type,
+ dev->model->is_cis ? session.output_line_count * session.params.channels
+ : session.output_line_count,
+ dummy, move, motor_flag);
+ }
+
+ dev->read_buffer.clear();
+ dev->read_buffer.alloc(session.buffer_size_read);
+
+ build_image_pipeline(dev, session);
+
+ dev->read_active = true;
+
+ dev->session = session;
+
+ dev->total_bytes_read = 0;
+ dev->total_bytes_to_read = session.output_line_bytes_requested * session.params.lines;
+
+ DBG(DBG_info, "%s: total bytes to send = %zu\n", __func__, dev->total_bytes_to_read);
+}
+
+ScanSession CommandSetGl841::calculate_scan_session(const Genesys_Device* dev,
+ const Genesys_Sensor& sensor,
+ const Genesys_Settings& settings) const
+{
+ int start;
+
+ DBG(DBG_info, "%s ", __func__);
+ debug_dump(DBG_info, settings);
+
+/* start */
+ start = static_cast<int>(dev->model->x_offset);
+ start += static_cast<int>(settings.tl_x);
+
+ start = static_cast<int>((start * sensor.optical_res) / MM_PER_INCH);
+
+ ScanSession session;
+ session.params.xres = settings.xres;
+ session.params.yres = settings.yres;
+ session.params.startx = start;
+ session.params.starty = 0; // not used
+ session.params.pixels = settings.pixels;
+ session.params.requested_pixels = settings.requested_pixels;
+ session.params.lines = settings.lines;
+ session.params.depth = settings.depth;
+ session.params.channels = settings.get_channels();
+ session.params.scan_method = settings.scan_method;
+ session.params.scan_mode = settings.scan_mode;
+ session.params.color_filter = settings.color_filter;
+ session.params.flags = ScanFlag::NONE;
+
+ compute_session(dev, session, sensor);
+
+ return session;
+}
+
+// for fast power saving methods only, like disabling certain amplifiers
+void CommandSetGl841::save_power(Genesys_Device* dev, bool enable) const
+{
+ DBG_HELPER_ARGS(dbg, "enable = %d", enable);
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+
+ if (enable)
+ {
+ if (dev->model->gpio_id == GpioId::CANON_LIDE_35)
+ {
+/* expect GPIO17 to be enabled, and GPIO9 to be disabled,
+ while GPIO8 is disabled*/
+/* final state: GPIO8 disabled, GPIO9 enabled, GPIO17 disabled,
+ GPIO18 disabled*/
+
+ uint8_t val = dev->interface->read_register(REG_0x6D);
+ dev->interface->write_register(REG_0x6D, val | 0x80);
+
+ dev->interface->sleep_ms(1);
+
+ /*enable GPIO9*/
+ val = dev->interface->read_register(REG_0x6C);
+ dev->interface->write_register(REG_0x6C, val | 0x01);
+
+ /*disable GPO17*/
+ val = dev->interface->read_register(REG_0x6B);
+ dev->interface->write_register(REG_0x6B, val & ~REG_0x6B_GPO17);
+
+ /*disable GPO18*/
+ val = dev->interface->read_register(REG_0x6B);
+ dev->interface->write_register(REG_0x6B, val & ~REG_0x6B_GPO18);
+
+ dev->interface->sleep_ms(1);
+
+ val = dev->interface->read_register(REG_0x6D);
+ dev->interface->write_register(REG_0x6D, val & ~0x80);
+
+ }
+ if (dev->model->gpio_id == GpioId::DP685)
+ {
+ uint8_t val = dev->interface->read_register(REG_0x6B);
+ dev->interface->write_register(REG_0x6B, val & ~REG_0x6B_GPO17);
+ dev->reg.find_reg(0x6b).value &= ~REG_0x6B_GPO17;
+ dev->calib_reg.find_reg(0x6b).value &= ~REG_0x6B_GPO17;
+ }
+
+ set_fe(dev, sensor, AFE_POWER_SAVE);
+
+ }
+ else
+ {
+ if (dev->model->gpio_id == GpioId::CANON_LIDE_35)
+ {
+/* expect GPIO17 to be enabled, and GPIO9 to be disabled,
+ while GPIO8 is disabled*/
+/* final state: GPIO8 enabled, GPIO9 disabled, GPIO17 enabled,
+ GPIO18 enabled*/
+
+ uint8_t val = dev->interface->read_register(REG_0x6D);
+ dev->interface->write_register(REG_0x6D, val | 0x80);
+
+ dev->interface->sleep_ms(10);
+
+ /*disable GPIO9*/
+ val = dev->interface->read_register(REG_0x6C);
+ dev->interface->write_register(REG_0x6C, val & ~0x01);
+
+ /*enable GPIO10*/
+ val = dev->interface->read_register(REG_0x6C);
+ dev->interface->write_register(REG_0x6C, val | 0x02);
+
+ /*enable GPO17*/
+ val = dev->interface->read_register(REG_0x6B);
+ dev->interface->write_register(REG_0x6B, val | REG_0x6B_GPO17);
+ dev->reg.find_reg(0x6b).value |= REG_0x6B_GPO17;
+ dev->calib_reg.find_reg(0x6b).value |= REG_0x6B_GPO17;
+
+ /*enable GPO18*/
+ val = dev->interface->read_register(REG_0x6B);
+ dev->interface->write_register(REG_0x6B, val | REG_0x6B_GPO18);
+ dev->reg.find_reg(0x6b).value |= REG_0x6B_GPO18;
+ dev->calib_reg.find_reg(0x6b).value |= REG_0x6B_GPO18;
+
+ }
+ if (dev->model->gpio_id == GpioId::DP665
+ || dev->model->gpio_id == GpioId::DP685)
+ {
+ uint8_t val = dev->interface->read_register(REG_0x6B);
+ dev->interface->write_register(REG_0x6B, val | REG_0x6B_GPO17);
+ dev->reg.find_reg(0x6b).value |= REG_0x6B_GPO17;
+ dev->calib_reg.find_reg(0x6b).value |= REG_0x6B_GPO17;
+ }
+
+ }
+}
+
+void CommandSetGl841::set_powersaving(Genesys_Device* dev, int delay /* in minutes */) const
+{
+ DBG_HELPER_ARGS(dbg, "delay = %d", delay);
+ // FIXME: SEQUENTIAL not really needed in this case
+ Genesys_Register_Set local_reg(Genesys_Register_Set::SEQUENTIAL);
+ int rate, exposure_time, tgtime, time;
+
+ local_reg.init_reg(0x01, dev->reg.get8(0x01)); /* disable fastmode */
+ local_reg.init_reg(0x03, dev->reg.get8(0x03)); /* Lamp power control */
+ local_reg.init_reg(0x05, dev->reg.get8(0x05)); /*& ~REG_0x05_BASESEL*/; /* 24 clocks/pixel */
+ local_reg.init_reg(0x18, 0x00); // Set CCD type
+ local_reg.init_reg(0x38, 0x00);
+ local_reg.init_reg(0x39, 0x00);
+
+ // period times for LPeriod, expR,expG,expB, Z1MODE, Z2MODE
+ local_reg.init_reg(0x1c, dev->reg.get8(0x05) & ~REG_0x1C_TGTIME);
+
+ if (!delay) {
+ local_reg.find_reg(0x03).value = 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.find_reg(0x03).value & 0xf0) | 0x09; /* enable lampdog and set lamptime = 1 */
+ } else {
+ local_reg.find_reg(0x03).value = (local_reg.find_reg(0x03).value & 0xf0) | 0x0f; /* enable lampdog and set lamptime = 7 */
+ }
+
+ time = delay * 1000 * 60; /* -> msec */
+ exposure_time = static_cast<std::uint32_t>(time * 32000.0 /
+ (24.0 * 64.0 * (local_reg.find_reg(0x03).value & REG_0x03_LAMPTIM) *
+ 1024.0) + 0.5);
+ /* 32000 = system clock, 24 = clocks per pixel */
+ rate = (exposure_time + 65536) / 65536;
+ if (rate > 4)
+ {
+ rate = 8;
+ tgtime = 3;
+ }
+ else if (rate > 2)
+ {
+ rate = 4;
+ tgtime = 2;
+ }
+ else if (rate > 1)
+ {
+ rate = 2;
+ tgtime = 1;
+ }
+ else
+ {
+ rate = 1;
+ tgtime = 0;
+ }
+
+ local_reg.find_reg(0x1c).value |= tgtime;
+ exposure_time /= rate;
+
+ if (exposure_time > 65535)
+ exposure_time = 65535;
+
+ local_reg.set8(0x38, exposure_time >> 8);
+ local_reg.set8(0x39, exposure_time & 255); /* lowbyte */
+
+ dev->interface->write_registers(local_reg);
+}
+
+static void gl841_stop_action(Genesys_Device* dev)
+{
+ DBG_HELPER(dbg);
+ Genesys_Register_Set local_reg;
+ unsigned int loop;
+
+ scanner_read_print_status(*dev);
+
+ if (scanner_is_motor_stopped(*dev)) {
+ DBG(DBG_info, "%s: already stopped\n", __func__);
+ return;
+ }
+
+ local_reg = dev->reg;
+
+ regs_set_optical_off(dev->model->asic_type, local_reg);
+
+ gl841_init_motor_regs_off(&local_reg,0);
+ dev->interface->write_registers(local_reg);
+
+ if (is_testing_mode()) {
+ return;
+ }
+
+ /* looks like writing the right registers to zero is enough to get the chip
+ out of scan mode into command mode, actually triggering(writing to
+ register 0x0f) seems to be unnecessary */
+
+ loop = 10;
+ while (loop > 0) {
+ if (scanner_is_motor_stopped(*dev)) {
+ return;
+ }
+
+ dev->interface->sleep_ms(100);
+ loop--;
+ }
+
+ throw SaneException(SANE_STATUS_IO_ERROR, "could not stop motor");
+}
+
+static bool gl841_get_paper_sensor(Genesys_Device* dev)
+{
+ DBG_HELPER(dbg);
+
+ uint8_t val = dev->interface->read_register(REG_0x6D);
+
+ return (val & 0x1) == 0;
+}
+
+void CommandSetGl841::eject_document(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+ Genesys_Register_Set local_reg;
+ unsigned int init_steps;
+ float feed_mm;
+ int loop;
+
+ if (!dev->model->is_sheetfed) {
+ DBG(DBG_proc, "%s: there is no \"eject sheet\"-concept for non sheet fed\n", __func__);
+ DBG(DBG_proc, "%s: finished\n", __func__);
+ return;
+ }
+
+
+ local_reg.clear();
+
+ // FIXME: unused result
+ scanner_read_status(*dev);
+
+ gl841_stop_action(dev);
+
+ local_reg = dev->reg;
+
+ regs_set_optical_off(dev->model->asic_type, local_reg);
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+ gl841_init_motor_regs(dev, sensor, &local_reg, 65536, MOTOR_ACTION_FEED, MotorFlag::NONE);
+
+ dev->interface->write_registers(local_reg);
+
+ try {
+ scanner_start_action(*dev, true);
+ } catch (...) {
+ catch_all_exceptions(__func__, [&]() { gl841_stop_action(dev); });
+ // restore original registers
+ catch_all_exceptions(__func__, [&]()
+ {
+ dev->interface->write_registers(dev->reg);
+ });
+ throw;
+ }
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("eject_document");
+ gl841_stop_action(dev);
+ return;
+ }
+
+ if (gl841_get_paper_sensor(dev)) {
+ DBG(DBG_info, "%s: paper still loaded\n", __func__);
+ /* force document TRUE, because it is definitely present */
+ dev->document = true;
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+
+ loop = 300;
+ while (loop > 0) /* do not wait longer then 30 seconds */
+ {
+
+ if (!gl841_get_paper_sensor(dev)) {
+ DBG(DBG_info, "%s: reached home position\n", __func__);
+ DBG(DBG_proc, "%s: finished\n", __func__);
+ break;
+ }
+ dev->interface->sleep_ms(100);
+ --loop;
+ }
+
+ if (loop == 0)
+ {
+ // when we come here then the scanner needed too much time for this, so we better stop
+ // the motor
+ catch_all_exceptions(__func__, [&](){ gl841_stop_action(dev); });
+ throw SaneException(SANE_STATUS_IO_ERROR,
+ "timeout while waiting for scanhead to go home");
+ }
+ }
+
+ feed_mm = static_cast<float>(dev->model->eject_feed);
+ if (dev->document)
+ {
+ feed_mm += static_cast<float>(dev->model->post_scan);
+ }
+
+ sanei_genesys_read_feed_steps(dev, &init_steps);
+
+ /* now feed for extra <number> steps */
+ loop = 0;
+ while (loop < 300) /* do not wait longer then 30 seconds */
+ {
+ unsigned int steps;
+
+ sanei_genesys_read_feed_steps(dev, &steps);
+
+ DBG(DBG_info, "%s: init_steps: %d, steps: %d\n", __func__, init_steps, steps);
+
+ if (steps > init_steps + (feed_mm * dev->motor.base_ydpi) / MM_PER_INCH)
+ {
+ break;
+ }
+
+ dev->interface->sleep_ms(100);
+ ++loop;
+ }
+
+ gl841_stop_action(dev);
+
+ dev->document = false;
+}
+
+
+void CommandSetGl841::load_document(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+ int loop = 300;
+ while (loop > 0) /* do not wait longer then 30 seconds */
+ {
+ if (gl841_get_paper_sensor(dev)) {
+ DBG(DBG_info, "%s: document inserted\n", __func__);
+
+ /* when loading OK, document is here */
+ dev->document = true;
+
+ // give user some time to place document correctly
+ dev->interface->sleep_ms(1000);
+ break;
+ }
+ dev->interface->sleep_ms(100);
+ --loop;
+ }
+
+ if (loop == 0)
+ {
+ // when we come here then the user needed to much time for this
+ throw SaneException(SANE_STATUS_IO_ERROR, "timeout while waiting for document");
+ }
+}
+
+/**
+ * detects end of document and adjust current scan
+ * to take it into account
+ * used by sheetfed scanners
+ */
+void CommandSetGl841::detect_document_end(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+ bool paper_loaded = gl841_get_paper_sensor(dev);
+
+ /* sheetfed scanner uses home sensor as paper present */
+ if (dev->document && !paper_loaded) {
+ DBG(DBG_info, "%s: no more document\n", __func__);
+ dev->document = false;
+
+ /* we can't rely on total_bytes_to_read since the frontend
+ * might have been slow to read data, so we re-evaluate the
+ * amount of data to scan form the hardware settings
+ */
+ unsigned scanned_lines = 0;
+ try {
+ sanei_genesys_read_scancnt(dev, &scanned_lines);
+ } catch (...) {
+ dev->total_bytes_to_read = dev->total_bytes_read;
+ throw;
+ }
+
+ if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS && dev->model->is_cis) {
+ scanned_lines /= 3;
+ }
+
+ std::size_t output_lines = dev->session.output_line_count;
+
+ std::size_t offset_lines = static_cast<std::size_t>(
+ (dev->model->post_scan / MM_PER_INCH) * dev->settings.yres);
+
+ std::size_t scan_end_lines = scanned_lines + offset_lines;
+
+ std::size_t remaining_lines = dev->get_pipeline_source().remaining_bytes() /
+ dev->session.output_line_bytes_raw;
+
+ DBG(DBG_io, "%s: scanned_lines=%u\n", __func__, scanned_lines);
+ DBG(DBG_io, "%s: scan_end_lines=%zu\n", __func__, scan_end_lines);
+ DBG(DBG_io, "%s: output_lines=%zu\n", __func__, output_lines);
+ DBG(DBG_io, "%s: remaining_lines=%zu\n", __func__, remaining_lines);
+
+ if (scan_end_lines > output_lines) {
+ auto skip_lines = scan_end_lines - output_lines;
+
+ if (remaining_lines > skip_lines) {
+ DBG(DBG_io, "%s: skip_lines=%zu\n", __func__, skip_lines);
+
+ remaining_lines -= skip_lines;
+ dev->get_pipeline_source().set_remaining_bytes(remaining_lines *
+ dev->session.output_line_bytes_raw);
+ dev->total_bytes_to_read -= skip_lines * dev->session.output_line_bytes_requested;
+ }
+ }
+ }
+}
+
+// Send the low-level scan command
+// todo : is this that useful ?
+void CommandSetGl841::begin_scan(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* reg, bool start_motor) const
+{
+ DBG_HELPER(dbg);
+ (void) sensor;
+ // FIXME: SEQUENTIAL not really needed in this case
+ Genesys_Register_Set local_reg(Genesys_Register_Set::SEQUENTIAL);
+ uint8_t val;
+
+ if (dev->model->gpio_id == GpioId::CANON_LIDE_80) {
+ val = dev->interface->read_register(REG_0x6B);
+ val = REG_0x6B_GPO18;
+ dev->interface->write_register(REG_0x6B, val);
+ }
+
+ if (dev->model->sensor_id != SensorId::CCD_PLUSTEK_OPTICPRO_3600) {
+ local_reg.init_reg(0x03, reg->get8(0x03) | REG_0x03_LAMPPWR);
+ } else {
+ // TODO PLUSTEK_3600: why ??
+ local_reg.init_reg(0x03, reg->get8(0x03));
+ }
+
+ local_reg.init_reg(0x01, reg->get8(0x01) | REG_0x01_SCAN);
+ local_reg.init_reg(0x0d, 0x01);
+
+ // scanner_start_action(dev, start_motor)
+ if (start_motor) {
+ local_reg.init_reg(0x0f, 0x01);
+ } else {
+ // do not start motor yet
+ local_reg.init_reg(0x0f, 0x00);
+ }
+
+ dev->interface->write_registers(local_reg);
+
+ dev->advance_head_pos_by_session(ScanHeadId::PRIMARY);
+}
+
+
+// Send the stop scan command
+void CommandSetGl841::end_scan(Genesys_Device* dev, Genesys_Register_Set __sane_unused__* reg,
+ bool check_stop) const
+{
+ DBG_HELPER_ARGS(dbg, "check_stop = %d", check_stop);
+
+ if (!dev->model->is_sheetfed) {
+ gl841_stop_action(dev);
+ }
+}
+
+// Moves the slider to steps
+static void gl841_feed(Genesys_Device* dev, int steps)
+{
+ DBG_HELPER_ARGS(dbg, "steps = %d", steps);
+ Genesys_Register_Set local_reg;
+ int loop;
+
+ gl841_stop_action(dev);
+
+ // FIXME: we should pick sensor according to the resolution scanner is currently operating on
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+
+ local_reg = dev->reg;
+
+ regs_set_optical_off(dev->model->asic_type, local_reg);
+
+ gl841_init_motor_regs(dev, sensor, &local_reg, steps, MOTOR_ACTION_FEED, MotorFlag::NONE);
+
+ dev->interface->write_registers(local_reg);
+
+ try {
+ scanner_start_action(*dev, true);
+ } catch (...) {
+ catch_all_exceptions(__func__, [&]() { gl841_stop_action (dev); });
+ // restore original registers
+ catch_all_exceptions(__func__, [&]()
+ {
+ dev->interface->write_registers(dev->reg);
+ });
+ throw;
+ }
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("feed");
+ dev->advance_head_pos_by_steps(ScanHeadId::PRIMARY, Direction::FORWARD, steps);
+ gl841_stop_action(dev);
+ return;
+ }
+
+ loop = 0;
+ while (loop < 300) /* do not wait longer then 30 seconds */
+ {
+ auto status = scanner_read_status(*dev);
+
+ if (!status.is_motor_enabled) {
+ DBG(DBG_proc, "%s: finished\n", __func__);
+ dev->advance_head_pos_by_steps(ScanHeadId::PRIMARY, Direction::FORWARD, steps);
+ return;
+ }
+ dev->interface->sleep_ms(100);
+ ++loop;
+ }
+
+ /* when we come here then the scanner needed too much time for this, so we better stop the motor */
+ gl841_stop_action (dev);
+
+ dev->set_head_pos_unknown();
+
+ throw SaneException(SANE_STATUS_IO_ERROR, "timeout while waiting for scanhead to go home");
+}
+
+// Moves the slider to the home (top) position slowly
+void CommandSetGl841::move_back_home(Genesys_Device* dev, bool wait_until_home) const
+{
+ DBG_HELPER_ARGS(dbg, "wait_until_home = %d", wait_until_home);
+ Genesys_Register_Set local_reg;
+ int loop = 0;
+
+ if (dev->model->is_sheetfed) {
+ DBG(DBG_proc, "%s: there is no \"home\"-concept for sheet fed\n", __func__);
+ DBG(DBG_proc, "%s: finished\n", __func__);
+ return;
+ }
+
+ // reset gpio pin
+ uint8_t val;
+ if (dev->model->gpio_id == GpioId::CANON_LIDE_35) {
+ val = dev->interface->read_register(REG_0x6C);
+ val = dev->gpo.regs.get_value(0x6c);
+ dev->interface->write_register(REG_0x6C, val);
+ }
+ if (dev->model->gpio_id == GpioId::CANON_LIDE_80) {
+ val = dev->interface->read_register(REG_0x6B);
+ val = REG_0x6B_GPO18 | REG_0x6B_GPO17;
+ dev->interface->write_register(REG_0x6B, val);
+ }
+ dev->cmd_set->save_power(dev, false);
+
+ // first read gives HOME_SENSOR true
+ auto status = scanner_read_reliable_status(*dev);
+
+
+ if (status.is_at_home) {
+ DBG(DBG_info, "%s: already at home, completed\n", __func__);
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+ return;
+ }
+
+ scanner_stop_action_no_move(*dev, dev->reg);
+
+ /* if motor is on, stop current action */
+ if (status.is_motor_enabled) {
+ gl841_stop_action(dev);
+ }
+
+ local_reg = dev->reg;
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+
+ gl841_init_motor_regs(dev, sensor, &local_reg, 65536, MOTOR_ACTION_GO_HOME, MotorFlag::REVERSE);
+
+ // set up for no scan
+ regs_set_optical_off(dev->model->asic_type, local_reg);
+
+ dev->interface->write_registers(local_reg);
+
+ try {
+ scanner_start_action(*dev, true);
+ } catch (...) {
+ catch_all_exceptions(__func__, [&]() { gl841_stop_action(dev); });
+ // restore original registers
+ catch_all_exceptions(__func__, [&]()
+ {
+ dev->interface->write_registers(dev->reg);
+ });
+ throw;
+ }
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("move_back_home");
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+ return;
+ }
+
+ if (wait_until_home)
+ {
+ while (loop < 300) /* do not wait longer then 30 seconds */
+ {
+ auto status = scanner_read_status(*dev);
+ if (status.is_at_home) {
+ DBG(DBG_info, "%s: reached home position\n", __func__);
+ DBG(DBG_proc, "%s: finished\n", __func__);
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+ return;
+ }
+ dev->interface->sleep_ms(100);
+ ++loop;
+ }
+
+ // when we come here then the scanner needed too much time for this, so we better stop
+ // the motor
+ catch_all_exceptions(__func__, [&](){ gl841_stop_action(dev); });
+ dev->set_head_pos_unknown();
+ throw SaneException(SANE_STATUS_IO_ERROR, "timeout while waiting for scanhead to go home");
+ }
+
+ DBG(DBG_info, "%s: scanhead is still moving\n", __func__);
+}
+
+// Automatically set top-left edge of the scan area by scanning a 200x200 pixels area at 600 dpi
+// from very top of scanner
+void CommandSetGl841::search_start_position(Genesys_Device* dev) const
+{
+ DBG_HELPER(dbg);
+ int size;
+ Genesys_Register_Set local_reg;
+
+ int pixels = 600;
+ int dpi = 300;
+
+ local_reg = dev->reg;
+
+ /* sets for a 200 lines * 600 pixels */
+ /* normal scan with no shading */
+
+ // FIXME: the current approach of doing search only for one resolution does not work on scanners
+ // whith employ different sensors with potentially different settings.
+ const auto& sensor = sanei_genesys_find_sensor(dev, dpi, 1, dev->model->default_method);
+
+ ScanSession session;
+ session.params.xres = dpi;
+ session.params.yres = dpi;
+ session.params.startx = 0;
+ session.params.starty = 0; /*we should give a small offset here~60 steps*/
+ session.params.pixels = 600;
+ session.params.lines = dev->model->search_lines;
+ session.params.depth = 8;
+ session.params.channels = 1;
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = ScanColorMode::GRAY;
+ session.params.color_filter = ColorFilter::GREEN;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ ScanFlag::IGNORE_LINE_DISTANCE |
+ ScanFlag::DISABLE_BUFFER_FULL_MOVE;
+ compute_session(dev, session, sensor);
+
+ init_regs_for_scan_session(dev, sensor, &local_reg, session);
+
+ // send to scanner
+ dev->interface->write_registers(local_reg);
+
+ size = pixels * dev->model->search_lines;
+
+ std::vector<uint8_t> data(size);
+
+ dev->cmd_set->begin_scan(dev, sensor, &local_reg, true);
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("search_start_position");
+ dev->cmd_set->end_scan(dev, &local_reg, true);
+ dev->reg = local_reg;
+ return;
+ }
+
+ wait_until_buffer_non_empty(dev);
+
+ // now we're on target, we can read data
+ sanei_genesys_read_data_from_scanner(dev, data.data(), size);
+
+ if (DBG_LEVEL >= DBG_data) {
+ sanei_genesys_write_pnm_file("gl841_search_position.pnm", data.data(), 8, 1, pixels,
+ dev->model->search_lines);
+ }
+
+ dev->cmd_set->end_scan(dev, &local_reg, true);
+
+ /* update regs to copy ASIC internal state */
+ dev->reg = local_reg;
+
+ for (auto& sensor_update :
+ sanei_genesys_find_sensors_all_for_write(dev, dev->model->default_method))
+ {
+ sanei_genesys_search_reference_point(dev, sensor_update, data.data(), 0, dpi, pixels,
+ dev->model->search_lines);
+ }
+}
+
+// sets up register for coarse gain calibration
+// todo: check it for scanners using it
+void CommandSetGl841::init_regs_for_coarse_calibration(Genesys_Device* dev,
+ const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs) const
+{
+ DBG_HELPER(dbg);
+
+ ScanSession session;
+ session.params.xres = dev->settings.xres;
+ session.params.yres = dev->settings.yres;
+ session.params.startx = 0;
+ session.params.starty = 0;
+ session.params.pixels = sensor.optical_res / sensor.ccd_pixels_per_system_pixel();
+ session.params.lines = 20;
+ session.params.depth = 16;
+ session.params.channels = dev->settings.get_channels();
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = dev->settings.scan_mode;
+ session.params.color_filter = dev->settings.color_filter;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ ScanFlag::SINGLE_LINE |
+ ScanFlag::IGNORE_LINE_DISTANCE;
+ compute_session(dev, session, sensor);
+
+ init_regs_for_scan_session(dev, sensor, &regs, session);
+
+ DBG(DBG_info, "%s: optical sensor res: %d dpi, actual res: %d\n", __func__,
+ sensor.optical_res / sensor.ccd_pixels_per_system_pixel(), dev->settings.xres);
+
+ dev->interface->write_registers(regs);
+
+/* if (DBG_LEVEL >= DBG_info)
+ sanei_gl841_print_registers (regs);*/
+}
+
+
+// init registers for shading calibration
+void CommandSetGl841::init_regs_for_shading(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs) const
+{
+ DBG_HELPER_ARGS(dbg, "lines = %zu", dev->calib_lines);
+ SANE_Int ydpi;
+ unsigned starty = 0;
+
+ /* initial calibration reg values */
+ regs = dev->reg;
+
+ ydpi = dev->motor.base_ydpi;
+ if (dev->model->motor_id == MotorId::PLUSTEK_OPTICPRO_3600) /* TODO PLUSTEK_3600: 1200dpi not yet working, produces dark bar */
+ {
+ ydpi = 600;
+ }
+ if (dev->model->motor_id == MotorId::CANON_LIDE_80) {
+ ydpi = gl841_get_dpihw(dev);
+ /* get over extra dark area for this model.
+ It looks like different devices have dark areas of different width
+ due to manufacturing variability. The initial value of starty was 140,
+ but it moves the sensor almost past the dark area completely in places
+ on certain devices.
+
+ On a particular device the black area starts at roughly position
+ 160 to 230 depending on location (the dark area is not completely
+ parallel to the frame).
+ */
+ starty = 70;
+ }
+
+ dev->calib_channels = 3;
+ dev->calib_lines = dev->model->shading_lines;
+
+ unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
+ unsigned factor = sensor.optical_res / resolution;
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, dev->calib_channels,
+ dev->settings.scan_method);
+
+ dev->calib_pixels = calib_sensor.sensor_pixels / factor;
+
+ ScanSession session;
+ session.params.xres = resolution;
+ session.params.yres = ydpi;
+ session.params.startx = 0;
+ session.params.starty = starty;
+ session.params.pixels = dev->calib_pixels;
+ session.params.lines = dev->calib_lines;
+ session.params.depth = 16;
+ session.params.channels = dev->calib_channels;
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ session.params.color_filter = dev->settings.color_filter;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ /*ScanFlag::DISABLE_BUFFER_FULL_MOVE |*/
+ ScanFlag::IGNORE_LINE_DISTANCE;
+ compute_session(dev, session, calib_sensor);
+
+ init_regs_for_scan_session(dev, calib_sensor, &regs, session);
+
+ dev->interface->write_registers(regs);
+}
+
+// set up registers for the actual scan
+void CommandSetGl841::init_regs_for_scan(Genesys_Device* dev, const Genesys_Sensor& sensor) const
+{
+ DBG_HELPER(dbg);
+ float move;
+ int move_dpi;
+ float start;
+
+ debug_dump(DBG_info, dev->settings);
+
+ /* steps to move to reach scanning area:
+ - first we move to physical start of scanning
+ either by a fixed steps amount from the black strip
+ or by a fixed amount from parking position,
+ minus the steps done during shading calibration
+ - then we move by the needed offset whitin physical
+ scanning area
+
+ assumption: steps are expressed at maximum motor resolution
+
+ we need:
+ float y_offset;
+ float y_size;
+ float y_offset_calib;
+ mm_to_steps()=motor dpi / 2.54 / 10=motor dpi / MM_PER_INCH */
+
+ /* if scanner uses GENESYS_FLAG_SEARCH_START y_offset is
+ relative from origin, else, it is from parking position */
+
+ move_dpi = dev->motor.base_ydpi;
+
+ move = 0;
+ if (dev->model->flags & GENESYS_FLAG_SEARCH_START) {
+ move += static_cast<float>(dev->model->y_offset_calib_white);
+ }
+
+ DBG(DBG_info, "%s move=%f steps\n", __func__, move);
+
+ move += static_cast<float>(dev->model->y_offset);
+ DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
+
+ move += static_cast<float>(dev->settings.tl_y);
+ DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
+
+ move = static_cast<float>((move * move_dpi) / MM_PER_INCH);
+
+/* start */
+ start = static_cast<float>(dev->model->x_offset);
+
+ start += static_cast<float>(dev->settings.tl_x);
+
+ start = static_cast<float>((start * sensor.optical_res) / MM_PER_INCH);
+
+ /* we enable true gray for cis scanners only, and just when doing
+ * scan since color calibration is OK for this mode
+ */
+ ScanFlag flags = ScanFlag::NONE;
+
+ /* true gray (led add for cis scanners) */
+ if(dev->model->is_cis && dev->settings.true_gray
+ && dev->settings.scan_mode != ScanColorMode::COLOR_SINGLE_PASS
+ && dev->model->sensor_id != SensorId::CIS_CANON_LIDE_80)
+ {
+ // on Lide 80 the LEDADD bit results in only red LED array being lit
+ DBG(DBG_io, "%s: activating LEDADD\n", __func__);
+ flags |= ScanFlag::ENABLE_LEDADD;
+ }
+
+ ScanSession session;
+ session.params.xres = dev->settings.xres;
+ session.params.yres = dev->settings.yres;
+ session.params.startx = static_cast<unsigned>(start);
+ session.params.starty = static_cast<unsigned>(move);
+ session.params.pixels = dev->settings.pixels;
+ session.params.requested_pixels = dev->settings.requested_pixels;
+ session.params.lines = dev->settings.lines;
+ session.params.depth = dev->settings.depth;
+ session.params.channels = dev->settings.get_channels();
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = dev->settings.scan_mode;
+ session.params.color_filter = dev->settings.color_filter;
+ session.params.flags = flags;
+ compute_session(dev, session, sensor);
+
+ init_regs_for_scan_session(dev, sensor, &dev->reg, session);
+}
+
+
+// this function sends generic gamma table (ie linear ones) or the Sensor specific one if provided
+void CommandSetGl841::send_gamma_table(Genesys_Device* dev, const Genesys_Sensor& sensor) const
+{
+ DBG_HELPER(dbg);
+ int size;
+
+ size = 256;
+
+ /* allocate temporary gamma tables: 16 bits words, 3 channels */
+ std::vector<uint8_t> gamma(size * 2 * 3);
+
+ sanei_genesys_generate_gamma_buffer(dev, sensor, 16, 65535, size, gamma.data());
+
+ dev->interface->write_gamma(0x28, 0x0000, gamma.data(), size * 2 * 3);
+}
+
+
+/* this function does the led calibration by scanning one line of the calibration
+ area below scanner's top on white strip.
+
+-needs working coarse/gain
+*/
+SensorExposure CommandSetGl841::led_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs) const
+{
+ DBG_HELPER(dbg);
+ int num_pixels;
+ int total_size;
+ int i, j;
+ int val;
+ int channels;
+ int avg[3], avga, avge;
+ int turn;
+ uint16_t exp[3], target;
+ int move;
+
+ /* these 2 boundaries should be per sensor */
+ uint16_t min_exposure=500;
+ uint16_t max_exposure;
+
+ /* feed to white strip if needed */
+ if (dev->model->y_offset_calib_white > 0) {
+ move = static_cast<int>(dev->model->y_offset_calib_white);
+ move = static_cast<int>((move * (dev->motor.base_ydpi)) / MM_PER_INCH);
+ DBG(DBG_io, "%s: move=%d lines\n", __func__, move);
+ gl841_feed(dev, move);
+ }
+
+ /* offset calibration is always done in color mode */
+ channels = 3;
+
+ unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
+ unsigned factor = sensor.optical_res / resolution;
+
+ const auto& calib_sensor_base = sanei_genesys_find_sensor(dev, resolution, channels,
+ dev->settings.scan_method);
+
+ num_pixels = calib_sensor_base.sensor_pixels / factor;
+
+ ScanSession session;
+ session.params.xres = resolution;
+ session.params.yres = dev->settings.yres;
+ session.params.startx = 0;
+ session.params.starty = 0;
+ session.params.pixels = num_pixels;
+ session.params.lines = 1;
+ session.params.depth = 16;
+ session.params.channels = channels;
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ session.params.color_filter = dev->settings.color_filter;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ ScanFlag::SINGLE_LINE |
+ ScanFlag::IGNORE_LINE_DISTANCE;
+ compute_session(dev, session, calib_sensor_base);
+
+ init_regs_for_scan_session(dev, calib_sensor_base, &regs, session);
+
+ dev->interface->write_registers(regs);
+
+
+ total_size = num_pixels * channels * 2 * 1; /* colors * bytes_per_color * scan lines */
+
+ std::vector<uint8_t> line(total_size);
+
+/*
+ we try to get equal bright leds here:
+
+ loop:
+ average per color
+ adjust exposure times
+ */
+
+ exp[0] = sensor.exposure.red;
+ exp[1] = sensor.exposure.green;
+ exp[2] = sensor.exposure.blue;
+
+ turn = 0;
+ /* max exposure is set to ~2 time initial average
+ * exposure, or 2 time last calibration exposure */
+ max_exposure=((exp[0]+exp[1]+exp[2])/3)*2;
+ target=sensor.gain_white_ref*256;
+
+ auto calib_sensor = calib_sensor_base;
+
+ bool acceptable = false;
+ do {
+ calib_sensor.exposure.red = exp[0];
+ calib_sensor.exposure.green = exp[1];
+ calib_sensor.exposure.blue = exp[2];
+
+ regs_set_exposure(dev->model->asic_type, regs, calib_sensor.exposure);
+ dev->interface->write_register(0x10, (calib_sensor.exposure.red >> 8) & 0xff);
+ dev->interface->write_register(0x11, calib_sensor.exposure.red & 0xff);
+ dev->interface->write_register(0x12, (calib_sensor.exposure.green >> 8) & 0xff);
+ dev->interface->write_register(0x13, calib_sensor.exposure.green & 0xff);
+ dev->interface->write_register(0x14, (calib_sensor.exposure.blue >> 8) & 0xff);
+ dev->interface->write_register(0x15, calib_sensor.exposure.blue & 0xff);
+
+ dev->interface->write_registers(regs);
+
+ DBG(DBG_info, "%s: starting line reading\n", __func__);
+ dev->cmd_set->begin_scan(dev, calib_sensor, &regs, true);
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("led_calibration");
+ move_back_home(dev, true);
+ return calib_sensor.exposure;
+ }
+
+ sanei_genesys_read_data_from_scanner(dev, line.data(), total_size);
+
+ if (DBG_LEVEL >= DBG_data) {
+ char fn[30];
+ std::snprintf(fn, 30, "gl841_led_%d.pnm", turn);
+ sanei_genesys_write_pnm_file(fn, line.data(), 16, channels, num_pixels, 1);
+ }
+
+ /* compute average */
+ for (j = 0; j < channels; j++)
+ {
+ avg[j] = 0;
+ for (i = 0; i < num_pixels; i++)
+ {
+ if (dev->model->is_cis)
+ val =
+ line[i * 2 + j * 2 * num_pixels + 1] * 256 +
+ line[i * 2 + j * 2 * num_pixels];
+ else
+ val =
+ line[i * 2 * channels + 2 * j + 1] * 256 +
+ line[i * 2 * channels + 2 * j];
+ avg[j] += val;
+ }
+
+ avg[j] /= num_pixels;
+ }
+
+ DBG(DBG_info,"%s: average: %d,%d,%d\n", __func__, avg[0], avg[1], avg[2]);
+
+ acceptable = true;
+
+ /* exposure is acceptable if each color is in the %5 range
+ * of other color channels */
+ if (avg[0] < avg[1] * 0.95 || avg[1] < avg[0] * 0.95 ||
+ avg[0] < avg[2] * 0.95 || avg[2] < avg[0] * 0.95 ||
+ avg[1] < avg[2] * 0.95 || avg[2] < avg[1] * 0.95)
+ {
+ acceptable = false;
+ }
+
+ /* led exposure is not acceptable if white level is too low
+ * ~80 hardcoded value for white level */
+ if(avg[0]<20000 || avg[1]<20000 || avg[2]<20000)
+ {
+ acceptable = false;
+ }
+
+ /* for scanners using target value */
+ if(target>0)
+ {
+ acceptable = true;
+ for(i=0;i<3;i++)
+ {
+ /* we accept +- 2% delta from target */
+ if(abs(avg[i]-target)>target/50)
+ {
+ exp[i]=(exp[i]*target)/avg[i];
+ acceptable = false;
+ }
+ }
+ }
+ else
+ {
+ if (!acceptable)
+ {
+ avga = (avg[0]+avg[1]+avg[2])/3;
+ exp[0] = (exp[0] * avga) / avg[0];
+ exp[1] = (exp[1] * avga) / avg[1];
+ exp[2] = (exp[2] * avga) / avg[2];
+ /*
+ keep the resulting exposures below this value.
+ too long exposure drives the ccd into saturation.
+ we may fix this by relying on the fact that
+ we get a striped scan without shading, by means of
+ statistical calculation
+ */
+ avge = (exp[0] + exp[1] + exp[2]) / 3;
+
+ if (avge > max_exposure) {
+ exp[0] = (exp[0] * max_exposure) / avge;
+ exp[1] = (exp[1] * max_exposure) / avge;
+ exp[2] = (exp[2] * max_exposure) / avge;
+ }
+ if (avge < min_exposure) {
+ exp[0] = (exp[0] * min_exposure) / avge;
+ exp[1] = (exp[1] * min_exposure) / avge;
+ exp[2] = (exp[2] * min_exposure) / avge;
+ }
+
+ }
+ }
+
+ gl841_stop_action(dev);
+
+ turn++;
+
+ } while (!acceptable && turn < 100);
+
+ DBG(DBG_info,"%s: acceptable exposure: %d,%d,%d\n", __func__, exp[0], exp[1], exp[2]);
+
+ dev->cmd_set->move_back_home(dev, true);
+
+ return calib_sensor.exposure;
+}
+
+/** @brief calibration for AD frontend devices
+ * offset calibration assumes that the scanning head is on a black area
+ * For LiDE80 analog frontend
+ * 0x0003 : is gain and belongs to [0..63]
+ * 0x0006 : is offset
+ * We scan a line with no gain until average offset reaches the target
+ */
+static void ad_fe_offset_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs)
+{
+ DBG_HELPER(dbg);
+ int num_pixels;
+ int total_size;
+ int i;
+ int average;
+ int turn;
+ int top;
+ int bottom;
+ int target;
+
+ /* don't impact 3600 behavior since we can't test it */
+ if (dev->model->sensor_id == SensorId::CCD_PLUSTEK_OPTICPRO_3600) {
+ return;
+ }
+
+ unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
+ unsigned factor = sensor.optical_res / resolution;
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, 3,
+ dev->settings.scan_method);
+
+ num_pixels = calib_sensor.sensor_pixels / factor;
+
+ ScanSession session;
+ session.params.xres = resolution;
+ session.params.yres = dev->settings.yres;
+ session.params.startx = 0;
+ session.params.starty = 0;
+ session.params.pixels = num_pixels;
+ session.params.lines = 1;
+ session.params.depth = 8;
+ session.params.channels = 3;
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ session.params.color_filter = dev->settings.color_filter;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ ScanFlag::SINGLE_LINE |
+ ScanFlag::IGNORE_LINE_DISTANCE;
+ compute_session(dev, session, calib_sensor);
+
+ dev->cmd_set->init_regs_for_scan_session(dev, calib_sensor, &regs, session);
+
+ total_size = num_pixels * 3 * 2 * 1;
+
+ std::vector<uint8_t> line(total_size);
+
+ dev->frontend.set_gain(0, 0);
+ dev->frontend.set_gain(1, 0);
+ dev->frontend.set_gain(2, 0);
+
+ /* loop on scan until target offset is reached */
+ turn=0;
+ target=24;
+ bottom=0;
+ top=255;
+ do {
+ /* set up offset mid range */
+ 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 line */
+ DBG(DBG_info, "%s: starting line reading\n", __func__);
+ dev->interface->write_registers(regs);
+ dev->cmd_set->set_fe(dev, calib_sensor, AFE_SET);
+ dev->cmd_set->begin_scan(dev, calib_sensor, &regs, true);
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("ad_fe_offset_calibration");
+ gl841_stop_action(dev);
+ return;
+ }
+
+ sanei_genesys_read_data_from_scanner(dev, line.data(), total_size);
+ gl841_stop_action (dev);
+ if (DBG_LEVEL >= DBG_data) {
+ char fn[30];
+ std::snprintf(fn, 30, "gl841_offset_%02d.pnm", turn);
+ sanei_genesys_write_pnm_file(fn, line.data(), 8, 3, num_pixels, 1);
+ }
+
+ /* search for minimal value */
+ average=0;
+ for(i=0;i<total_size;i++)
+ {
+ average+=line[i];
+ }
+ average/=total_size;
+ DBG(DBG_data, "%s: average=%d\n", __func__, average);
+
+ /* if min value is above target, the current value becomes the new top
+ * else it is the new bottom */
+ if(average>target)
+ {
+ top=(top+bottom)/2;
+ }
+ else
+ {
+ bottom=(top+bottom)/2;
+ }
+ turn++;
+ } while ((top-bottom)>1 && turn < 100);
+
+ // FIXME: don't overwrite the calibrated values
+ dev->frontend.set_offset(0, 0);
+ dev->frontend.set_offset(1, 0);
+ dev->frontend.set_offset(2, 0);
+ DBG(DBG_info, "%s: offset=(%d,%d,%d)\n", __func__,
+ dev->frontend.get_offset(0),
+ dev->frontend.get_offset(1),
+ dev->frontend.get_offset(2));
+}
+
+/* this function does the offset calibration by scanning one line of the calibration
+ area below scanner's top. There is a black margin and the remaining is white.
+ sanei_genesys_search_start() must have been called so that the offsets and margins
+ are allready known.
+
+this function expects the slider to be where?
+*/
+void CommandSetGl841::offset_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs) const
+{
+ DBG_HELPER(dbg);
+ int num_pixels;
+ int total_size;
+ int i, j;
+ int val;
+ int channels;
+ int off[3],offh[3],offl[3],off1[3],off2[3];
+ int min1[3],min2[3];
+ int cmin[3],cmax[3];
+ int turn;
+ int mintgt = 0x400;
+
+ /* Analog Device fronted have a different calibration */
+ if ((dev->reg.find_reg(0x04).value & REG_0x04_FESET) == 0x02) {
+ return ad_fe_offset_calibration(dev, sensor, regs);
+ }
+
+ /* offset calibration is always done in color mode */
+ channels = 3;
+
+ unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
+ unsigned factor = sensor.optical_res / resolution;
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, channels,
+ dev->settings.scan_method);
+
+ num_pixels = calib_sensor.sensor_pixels / factor;
+
+ ScanSession session;
+ session.params.xres = resolution;
+ session.params.yres = dev->settings.yres;
+ session.params.startx = 0;
+ session.params.starty = 0;
+ session.params.pixels = num_pixels;
+ session.params.lines = 1;
+ session.params.depth = 16;
+ session.params.channels = channels;
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ session.params.color_filter = dev->settings.color_filter;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ ScanFlag::SINGLE_LINE |
+ ScanFlag::IGNORE_LINE_DISTANCE |
+ ScanFlag::DISABLE_LAMP;
+ compute_session(dev, session, calib_sensor);
+
+ init_regs_for_scan_session(dev, calib_sensor, &regs, session);
+
+ total_size = num_pixels * channels * 2 * 1; /* colors * bytes_per_color * scan lines */
+
+ std::vector<uint8_t> first_line(total_size);
+ std::vector<uint8_t> second_line(total_size);
+
+ /* scan first line of data with no offset nor gain */
+/*WM8199: gain=0.73; offset=-260mV*/
+/*okay. the sensor black level is now at -260mV. we only get 0 from AFE...*/
+/* we should probably do real calibration here:
+ * -detect acceptable offset with binary search
+ * -calculate offset from this last version
+ *
+ * acceptable offset means
+ * - few completely black pixels(<10%?)
+ * - few completely white pixels(<10%?)
+ *
+ * final offset should map the minimum not completely black
+ * pixel to 0(16 bits)
+ *
+ * this does account for dummy pixels at the end of ccd
+ * this assumes slider is at black strip(which is not quite as black as "no
+ * signal").
+ *
+ */
+ dev->frontend.set_gain(0, 0);
+ dev->frontend.set_gain(1, 0);
+ dev->frontend.set_gain(2, 0);
+ offh[0] = 0xff;
+ offh[1] = 0xff;
+ offh[2] = 0xff;
+ offl[0] = 0x00;
+ offl[1] = 0x00;
+ offl[2] = 0x00;
+ turn = 0;
+
+ bool acceptable = false;
+ do {
+
+ dev->interface->write_registers(regs);
+
+ for (j=0; j < channels; j++) {
+ off[j] = (offh[j]+offl[j])/2;
+ dev->frontend.set_offset(j, off[j]);
+ }
+
+ dev->cmd_set->set_fe(dev, calib_sensor, AFE_SET);
+
+ DBG(DBG_info, "%s: starting first line reading\n", __func__);
+ dev->cmd_set->begin_scan(dev, calib_sensor, &regs, true);
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("offset_calibration");
+ return;
+ }
+
+ sanei_genesys_read_data_from_scanner(dev, first_line.data(), total_size);
+
+ if (DBG_LEVEL >= DBG_data) {
+ char fn[30];
+ std::snprintf(fn, 30, "gl841_offset1_%02d.pnm", turn);
+ sanei_genesys_write_pnm_file(fn, first_line.data(), 16, channels, num_pixels, 1);
+ }
+
+ acceptable = true;
+
+ for (j = 0; j < channels; j++)
+ {
+ cmin[j] = 0;
+ cmax[j] = 0;
+
+ for (i = 0; i < num_pixels; i++)
+ {
+ if (dev->model->is_cis)
+ val =
+ first_line[i * 2 + j * 2 * num_pixels + 1] * 256 +
+ first_line[i * 2 + j * 2 * num_pixels];
+ else
+ val =
+ first_line[i * 2 * channels + 2 * j + 1] * 256 +
+ first_line[i * 2 * channels + 2 * j];
+ if (val < 10)
+ cmin[j]++;
+ if (val > 65525)
+ cmax[j]++;
+ }
+
+ /* TODO the DP685 has a black strip in the middle of the sensor
+ * should be handled in a more elegant way , could be a bug */
+ if (dev->model->sensor_id == SensorId::CCD_DP685)
+ cmin[j] -= 20;
+
+ if (cmin[j] > num_pixels/100) {
+ acceptable = false;
+ if (dev->model->is_cis)
+ offl[0] = off[0];
+ else
+ offl[j] = off[j];
+ }
+ if (cmax[j] > num_pixels/100) {
+ acceptable = false;
+ if (dev->model->is_cis)
+ offh[0] = off[0];
+ else
+ offh[j] = off[j];
+ }
+ }
+
+ DBG(DBG_info,"%s: black/white pixels: %d/%d,%d/%d,%d/%d\n", __func__, cmin[0], cmax[0],
+ cmin[1], cmax[1], cmin[2], cmax[2]);
+
+ if (dev->model->is_cis) {
+ offh[2] = offh[1] = offh[0];
+ offl[2] = offl[1] = offl[0];
+ }
+
+ gl841_stop_action(dev);
+
+ turn++;
+ } while (!acceptable && turn < 100);
+
+ DBG(DBG_info,"%s: acceptable offsets: %d,%d,%d\n", __func__, off[0], off[1], off[2]);
+
+
+ for (j = 0; j < channels; j++)
+ {
+ off1[j] = off[j];
+
+ min1[j] = 65536;
+
+ for (i = 0; i < num_pixels; i++)
+ {
+ if (dev->model->is_cis)
+ val =
+ first_line[i * 2 + j * 2 * num_pixels + 1] * 256 +
+ first_line[i * 2 + j * 2 * num_pixels];
+ else
+ val =
+ first_line[i * 2 * channels + 2 * j + 1] * 256 +
+ first_line[i * 2 * channels + 2 * j];
+ if (min1[j] > val && val >= 10)
+ min1[j] = val;
+ }
+ }
+
+
+ offl[0] = off[0];
+ offl[1] = off[0];
+ offl[2] = off[0];
+ turn = 0;
+
+ do {
+
+ for (j=0; j < channels; j++) {
+ off[j] = (offh[j]+offl[j])/2;
+ dev->frontend.set_offset(j, off[j]);
+ }
+
+ dev->cmd_set->set_fe(dev, calib_sensor, AFE_SET);
+
+ DBG(DBG_info, "%s: starting second line reading\n", __func__);
+ dev->interface->write_registers(regs);
+ dev->cmd_set->begin_scan(dev, calib_sensor, &regs, true);
+ sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size);
+
+ if (DBG_LEVEL >= DBG_data) {
+ char fn[30];
+ std::snprintf(fn, 30, "gl841_offset2_%02d.pnm", turn);
+ sanei_genesys_write_pnm_file(fn, second_line.data(), 16, channels, num_pixels, 1);
+ }
+
+ acceptable = true;
+
+ for (j = 0; j < channels; j++)
+ {
+ cmin[j] = 0;
+ cmax[j] = 0;
+
+ for (i = 0; i < num_pixels; i++)
+ {
+ if (dev->model->is_cis)
+ val =
+ second_line[i * 2 + j * 2 * num_pixels + 1] * 256 +
+ second_line[i * 2 + j * 2 * num_pixels];
+ else
+ val =
+ second_line[i * 2 * channels + 2 * j + 1] * 256 +
+ second_line[i * 2 * channels + 2 * j];
+ if (val < 10)
+ cmin[j]++;
+ if (val > 65525)
+ cmax[j]++;
+ }
+
+ if (cmin[j] > num_pixels/100) {
+ acceptable = false;
+ if (dev->model->is_cis)
+ offl[0] = off[0];
+ else
+ offl[j] = off[j];
+ }
+ if (cmax[j] > num_pixels/100) {
+ acceptable = false;
+ if (dev->model->is_cis)
+ offh[0] = off[0];
+ else
+ offh[j] = off[j];
+ }
+ }
+
+ DBG(DBG_info, "%s: black/white pixels: %d/%d,%d/%d,%d/%d\n", __func__, cmin[0], cmax[0],
+ cmin[1], cmax[1], cmin[2], cmax[2]);
+
+ if (dev->model->is_cis) {
+ offh[2] = offh[1] = offh[0];
+ offl[2] = offl[1] = offl[0];
+ }
+
+ gl841_stop_action(dev);
+
+ turn++;
+
+ } while (!acceptable && turn < 100);
+
+ DBG(DBG_info, "%s: acceptable offsets: %d,%d,%d\n", __func__, off[0], off[1], off[2]);
+
+
+ for (j = 0; j < channels; j++)
+ {
+ off2[j] = off[j];
+
+ min2[j] = 65536;
+
+ for (i = 0; i < num_pixels; i++)
+ {
+ if (dev->model->is_cis)
+ val =
+ second_line[i * 2 + j * 2 * num_pixels + 1] * 256 +
+ second_line[i * 2 + j * 2 * num_pixels];
+ else
+ val =
+ second_line[i * 2 * channels + 2 * j + 1] * 256 +
+ second_line[i * 2 * channels + 2 * j];
+ if (min2[j] > val && val != 0)
+ min2[j] = val;
+ }
+ }
+
+ DBG(DBG_info, "%s: first set: %d/%d,%d/%d,%d/%d\n", __func__, off1[0], min1[0], off1[1], min1[1],
+ off1[2], min1[2]);
+
+ DBG(DBG_info, "%s: second set: %d/%d,%d/%d,%d/%d\n", __func__, off2[0], min2[0], off2[1], min2[1],
+ off2[2], min2[2]);
+
+/*
+ calculate offset for each channel
+ based on minimal pixel value min1 at offset off1 and minimal pixel value min2
+ at offset off2
+
+ to get min at off, values are linearly interpolated:
+ min=real+off*fact
+ min1=real+off1*fact
+ min2=real+off2*fact
+
+ fact=(min1-min2)/(off1-off2)
+ real=min1-off1*(min1-min2)/(off1-off2)
+
+ off=(min-min1+off1*(min1-min2)/(off1-off2))/((min1-min2)/(off1-off2))
+
+ off=(min*(off1-off2)+min1*off2-off1*min2)/(min1-min2)
+
+ */
+ for (j = 0; j < channels; j++)
+ {
+ if (min2[j]-min1[j] == 0) {
+/*TODO: try to avoid this*/
+ DBG(DBG_warn, "%s: difference too small\n", __func__);
+ if (mintgt * (off1[j] - off2[j]) + min1[j] * off2[j] - min2[j] * off1[j] >= 0)
+ off[j] = 0x0000;
+ else
+ off[j] = 0xffff;
+ } else
+ off[j] = (mintgt * (off1[j] - off2[j]) + min1[j] * off2[j] - min2[j] * off1[j])/(min1[j]-min2[j]);
+ if (off[j] > 255)
+ off[j] = 255;
+ if (off[j] < 0)
+ off[j] = 0;
+ dev->frontend.set_offset(j, off[j]);
+ }
+
+ DBG(DBG_info, "%s: final offsets: %d,%d,%d\n", __func__, off[0], off[1], off[2]);
+
+ if (dev->model->is_cis) {
+ if (off[0] < off[1])
+ off[0] = off[1];
+ if (off[0] < off[2])
+ off[0] = off[2];
+ dev->frontend.set_offset(0, off[0]);
+ dev->frontend.set_offset(1, off[0]);
+ dev->frontend.set_offset(2, off[0]);
+ }
+
+ if (channels == 1)
+ {
+ dev->frontend.set_offset(1, dev->frontend.get_offset(0));
+ dev->frontend.set_offset(2, dev->frontend.get_offset(0));
+ }
+}
+
+
+/* alternative coarse gain calibration
+ this on uses the settings from offset_calibration and
+ uses only one scanline
+ */
+/*
+ with offset and coarse calibration we only want to get our input range into
+ a reasonable shape. the fine calibration of the upper and lower bounds will
+ be done with shading.
+ */
+void CommandSetGl841::coarse_gain_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set& regs, int dpi) const
+{
+ DBG_HELPER_ARGS(dbg, "dpi=%d", dpi);
+ int num_pixels;
+ int total_size;
+ int i, j, channels;
+ int max[3];
+ float gain[3];
+ int val;
+ int lines=1;
+ int move;
+
+ // feed to white strip if needed
+ if (dev->model->y_offset_calib_white > 0) {
+ move = static_cast<int>(dev->model->y_offset_calib_white);
+ move = static_cast<int>((move * (dev->motor.base_ydpi)) / MM_PER_INCH);
+ DBG(DBG_io, "%s: move=%d lines\n", __func__, move);
+ gl841_feed(dev, move);
+ }
+
+ /* coarse gain calibration is allways done in color mode */
+ channels = 3;
+
+ unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
+ unsigned factor = sensor.optical_res / resolution;
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, channels,
+ dev->settings.scan_method);
+
+ num_pixels = calib_sensor.sensor_pixels / factor;
+
+ ScanSession session;
+ session.params.xres = resolution;
+ session.params.yres = dev->settings.yres;
+ session.params.startx = 0;
+ session.params.starty = 0;
+ session.params.pixels = num_pixels;
+ session.params.lines = lines;
+ session.params.depth = 16;
+ session.params.channels = channels;
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ session.params.color_filter = dev->settings.color_filter;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ ScanFlag::SINGLE_LINE |
+ ScanFlag::IGNORE_LINE_DISTANCE;
+ compute_session(dev, session, calib_sensor);
+
+ init_regs_for_scan_session(dev, calib_sensor, &regs, session);
+
+ dev->interface->write_registers(regs);
+
+ total_size = num_pixels * channels * 2 * lines; /* colors * bytes_per_color * scan lines */
+
+ std::vector<uint8_t> line(total_size);
+
+ dev->cmd_set->begin_scan(dev, calib_sensor, &regs, true);
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("coarse_gain_calibration");
+ gl841_stop_action(dev);
+ move_back_home(dev, true);
+ return;
+ }
+
+ sanei_genesys_read_data_from_scanner(dev, line.data(), total_size);
+
+ if (DBG_LEVEL >= DBG_data)
+ sanei_genesys_write_pnm_file("gl841_gain.pnm", line.data(), 16, channels, num_pixels, lines);
+
+ /* 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 (j = 0; j < channels; j++)
+ {
+ max[j] = 0;
+ for (i = 0; i < num_pixels; i++)
+ {
+ if (dev->model->is_cis)
+ val =
+ line[i * 2 + j * 2 * num_pixels + 1] * 256 +
+ line[i * 2 + j * 2 * num_pixels];
+ else
+ val =
+ line[i * 2 * channels + 2 * j + 1] * 256 +
+ line[i * 2 * channels + 2 * j];
+
+ if (val > max[j])
+ max[j] = val;
+ }
+
+ gain[j] = 65535.0f / max[j];
+
+ uint8_t out_gain = 0;
+
+ if (dev->model->adc_id == AdcId::CANON_LIDE_35 ||
+ dev->model->adc_id == AdcId::WOLFSON_XP300 ||
+ dev->model->adc_id == AdcId::WOLFSON_DSM600)
+ {
+ gain[j] *= 0.69f; // seems we don't get the real maximum. empirically derived
+ if (283 - 208/gain[j] > 255)
+ out_gain = 255;
+ else if (283 - 208/gain[j] < 0)
+ out_gain = 0;
+ else
+ out_gain = static_cast<std::uint8_t>(283 - 208 / gain[j]);
+ } else if (dev->model->adc_id == AdcId::CANON_LIDE_80) {
+ out_gain = static_cast<std::uint8_t>(gain[j] * 12);
+ }
+ dev->frontend.set_gain(j, out_gain);
+
+ DBG(DBG_proc, "%s: channel %d, max=%d, gain = %f, setting:%d\n", __func__, j, max[j], gain[j],
+ out_gain);
+ }
+
+ for (j = 0; j < channels; j++)
+ {
+ if(gain[j] > 10)
+ {
+ DBG (DBG_error0, "**********************************************\n");
+ DBG (DBG_error0, "**********************************************\n");
+ DBG (DBG_error0, "**** ****\n");
+ DBG (DBG_error0, "**** Extremely low Brightness detected. ****\n");
+ DBG (DBG_error0, "**** Check the scanning head is ****\n");
+ DBG (DBG_error0, "**** unlocked and moving. ****\n");
+ DBG (DBG_error0, "**** ****\n");
+ DBG (DBG_error0, "**********************************************\n");
+ DBG (DBG_error0, "**********************************************\n");
+ throw SaneException(SANE_STATUS_JAMMED, "scanning head is locked");
+ }
+
+ }
+
+ if (dev->model->is_cis) {
+ uint8_t gain0 = dev->frontend.get_gain(0);
+ if (gain0 > dev->frontend.get_gain(1)) {
+ gain0 = dev->frontend.get_gain(1);
+ }
+ if (gain0 > dev->frontend.get_gain(2)) {
+ gain0 = dev->frontend.get_gain(2);
+ }
+ dev->frontend.set_gain(0, gain0);
+ dev->frontend.set_gain(1, gain0);
+ dev->frontend.set_gain(2, gain0);
+ }
+
+ if (channels == 1) {
+ dev->frontend.set_gain(0, dev->frontend.get_gain(1));
+ dev->frontend.set_gain(2, dev->frontend.get_gain(1));
+ }
+
+ DBG(DBG_info, "%s: gain=(%d,%d,%d)\n", __func__,
+ dev->frontend.get_gain(0),
+ dev->frontend.get_gain(1),
+ dev->frontend.get_gain(2));
+
+ gl841_stop_action(dev);
+
+ dev->cmd_set->move_back_home(dev, true);
+}
+
+// wait for lamp warmup by scanning the same line until difference
+// between 2 scans is below a threshold
+void CommandSetGl841::init_regs_for_warmup(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ Genesys_Register_Set* local_reg, int* channels,
+ int* total_size) const
+{
+ DBG_HELPER(dbg);
+ int num_pixels = 4 * 300;
+ *local_reg = dev->reg;
+
+/* okay.. these should be defaults stored somewhere */
+ dev->frontend.set_gain(0, 0);
+ dev->frontend.set_gain(1, 0);
+ dev->frontend.set_gain(2, 0);
+ dev->frontend.set_offset(0, 0x80);
+ dev->frontend.set_offset(1, 0x80);
+ dev->frontend.set_offset(2, 0x80);
+
+ ScanSession session;
+ session.params.xres = sensor.optical_res;
+ session.params.yres = dev->settings.yres;
+ session.params.startx = sensor.dummy_pixel;
+ session.params.starty = 0;
+ session.params.pixels = num_pixels;
+ session.params.lines = 1;
+ session.params.depth = 16;
+ session.params.channels = *channels;
+ session.params.scan_method = dev->settings.scan_method;
+ if (*channels == 3) {
+ session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ } else {
+ session.params.scan_mode = ScanColorMode::GRAY;
+ }
+ session.params.color_filter = dev->settings.color_filter;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ ScanFlag::SINGLE_LINE |
+ ScanFlag::IGNORE_LINE_DISTANCE;
+ compute_session(dev, session, sensor);
+
+ init_regs_for_scan_session(dev, sensor, local_reg, session);
+
+ num_pixels = session.output_pixels;
+
+ *total_size = num_pixels * 3 * 2 * 1; /* colors * bytes_per_color * scan lines */
+
+ dev->interface->write_registers(*local_reg);
+}
+
+
+/*
+ * this function moves head without scanning, forward, then backward
+ * so that the head goes to park position.
+ * as a by-product, also check for lock
+ */
+static void sanei_gl841_repark_head(Genesys_Device* dev)
+{
+ DBG_HELPER(dbg);
+
+ gl841_feed(dev,232);
+
+ // toggle motor flag, put an huge step number and redo move backward
+ dev->cmd_set->move_back_home(dev, true);
+}
+
+/*
+ * initialize ASIC : registers, motor tables, and gamma tables
+ * then ensure scanner's head is at home
+ */
+void CommandSetGl841::init(Genesys_Device* dev) const
+{
+ size_t size;
+
+ DBG_INIT ();
+ DBG_HELPER(dbg);
+
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+
+ /* Check if the device has already been initialized and powered up */
+ if (dev->already_initialized)
+ {
+ auto status = scanner_read_status(*dev);
+ if (!status.is_replugged) {
+ DBG(DBG_info, "%s: already initialized\n", __func__);
+ return;
+ }
+ }
+
+ dev->dark_average_data.clear();
+ dev->white_average_data.clear();
+
+ dev->settings.color_filter = ColorFilter::RED;
+
+ // ASIC reset
+ dev->interface->write_register(0x0e, 0x01);
+ dev->interface->write_register(0x0e, 0x00);
+
+ /* Set default values for registers */
+ gl841_init_registers (dev);
+
+ // Write initial registers
+ dev->interface->write_registers(dev->reg);
+
+ const auto& sensor = sanei_genesys_find_sensor_any(dev);
+
+ // Set analog frontend
+ dev->cmd_set->set_fe(dev, sensor, AFE_INIT);
+
+ // FIXME: move_back_home modifies dev->calib_reg and requires it to be filled
+ dev->calib_reg = dev->reg;
+
+ // Move home
+ dev->cmd_set->move_back_home(dev, true);
+
+ // Init shading data
+ sanei_genesys_init_shading_data(dev, sensor, sensor.sensor_pixels);
+
+ /* ensure head is correctly parked, and check lock */
+ if (dev->model->flags & GENESYS_FLAG_REPARK)
+ {
+ // FIXME: if repark fails, we should print an error message that the scanner is locked and
+ // the user should unlock the lock. We should also rethrow with SANE_STATUS_JAMMED
+ sanei_gl841_repark_head(dev);
+ }
+
+ // send gamma tables
+ dev->cmd_set->send_gamma_table(dev, sensor);
+
+ /* initial calibration reg values */
+ Genesys_Register_Set& regs = dev->calib_reg;
+ regs = dev->reg;
+
+ unsigned resolution = sensor.get_logical_hwdpi(300);
+ unsigned factor = sensor.optical_res / resolution;
+
+ const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, 3,
+ dev->settings.scan_method);
+
+ unsigned num_pixels = 16 / factor;
+
+ ScanSession session;
+ session.params.xres = resolution;
+ session.params.yres = 300;
+ session.params.startx = 0;
+ session.params.starty = 0;
+ session.params.pixels = num_pixels;
+ session.params.lines = 1;
+ session.params.depth = 16;
+ session.params.channels = 3;
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
+ session.params.color_filter = ColorFilter::RED;
+ session.params.flags = ScanFlag::DISABLE_SHADING |
+ ScanFlag::DISABLE_GAMMA |
+ ScanFlag::SINGLE_LINE |
+ ScanFlag::IGNORE_LINE_DISTANCE;
+ compute_session(dev, session, calib_sensor);
+
+ init_regs_for_scan_session(dev, calib_sensor, &regs, session);
+
+ dev->interface->write_registers(regs);
+
+ size = num_pixels * 3 * 2 * 1; // colors * bytes_per_color * scan lines
+
+ std::vector<uint8_t> line(size);
+
+ DBG(DBG_info, "%s: starting dummy data reading\n", __func__);
+ dev->cmd_set->begin_scan(dev, calib_sensor, &regs, true);
+
+ sanei_usb_set_timeout(1000);/* 1 second*/
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("init");
+ } else {
+ // ignore errors. next read will succeed
+ catch_all_exceptions(__func__,
+ [&](){ sanei_genesys_read_data_from_scanner(dev, line.data(), size); });
+ }
+
+ sanei_usb_set_timeout(30 * 1000);/* 30 seconds*/
+
+ end_scan(dev, &regs, true);
+
+ regs = dev->reg;
+
+ // Set powersaving(default = 15 minutes)
+ set_powersaving(dev, 15);
+ dev->already_initialized = true;
+}
+
+void CommandSetGl841::update_hardware_sensors(Genesys_Scanner* s) const
+{
+ DBG_HELPER(dbg);
+ /* do what is needed to get a new set of events, but try to not lose
+ any of them.
+ */
+ uint8_t val;
+
+ if (s->dev->model->gpio_id == GpioId::CANON_LIDE_35
+ || s->dev->model->gpio_id == GpioId::CANON_LIDE_80)
+ {
+ val = s->dev->interface->read_register(REG_0x6D);
+ s->buttons[BUTTON_SCAN_SW].write((val & 0x01) == 0);
+ s->buttons[BUTTON_FILE_SW].write((val & 0x02) == 0);
+ s->buttons[BUTTON_EMAIL_SW].write((val & 0x04) == 0);
+ s->buttons[BUTTON_COPY_SW].write((val & 0x08) == 0);
+ }
+
+ if (s->dev->model->gpio_id == GpioId::XP300 ||
+ s->dev->model->gpio_id == GpioId::DP665 ||
+ s->dev->model->gpio_id == GpioId::DP685)
+ {
+ val = s->dev->interface->read_register(REG_0x6D);
+
+ s->buttons[BUTTON_PAGE_LOADED_SW].write((val & 0x01) == 0);
+ s->buttons[BUTTON_SCAN_SW].write((val & 0x02) == 0);
+ }
+}
+
+/** @brief search for a full width black or white strip.
+ * This function searches for a black or white stripe across the scanning area.
+ * When searching backward, the searched area must completely be of the desired
+ * color since this area will be used for calibration which scans forward.
+ * @param dev scanner device
+ * @param forward true if searching forward, false if searching backward
+ * @param black true if searching for a black strip, false for a white strip
+ */
+void CommandSetGl841::search_strip(Genesys_Device* dev, const Genesys_Sensor& sensor, bool forward,
+ bool black) const
+{
+ DBG_HELPER_ARGS(dbg, "%s %s", black ? "black" : "white", forward ? "forward" : "reverse");
+ unsigned int pixels, lines, channels;
+ Genesys_Register_Set local_reg;
+ size_t size;
+ unsigned int pass, count, found, x, y, length;
+ char title[80];
+ GenesysRegister *r;
+ uint8_t white_level=90; /**< default white level to detect white dots */
+ uint8_t black_level=60; /**< default black level to detect black dots */
+
+ /* use maximum gain when doing forward white strip detection
+ * since we don't have calibrated the sensor yet */
+ if(!black && forward)
+ {
+ dev->frontend.set_gain(0, 0xff);
+ dev->frontend.set_gain(1, 0xff);
+ dev->frontend.set_gain(2, 0xff);
+ }
+
+ dev->cmd_set->set_fe(dev, sensor, AFE_SET);
+ gl841_stop_action(dev);
+
+ // set up for a gray scan at lowest dpi
+ const auto& resolution_settings = dev->model->get_resolution_settings(dev->settings.scan_method);
+ unsigned dpi = resolution_settings.get_min_resolution_x();
+ channels = 1;
+
+ /* shading calibation is done with dev->motor.base_ydpi */
+ /* lines = (dev->model->shading_lines * dpi) / dev->motor.base_ydpi; */
+ lines = static_cast<unsigned>((10 * dpi) / MM_PER_INCH);
+
+ pixels = (sensor.sensor_pixels * dpi) / sensor.optical_res;
+
+ /* 20 cm max length for calibration sheet */
+ length = static_cast<unsigned>(((200 * dpi) / MM_PER_INCH) / lines);
+
+ dev->set_head_pos_zero(ScanHeadId::PRIMARY);
+
+ local_reg = dev->reg;
+
+ ScanSession session;
+ session.params.xres = dpi;
+ session.params.yres = dpi;
+ session.params.startx = 0;
+ session.params.starty = 0;
+ session.params.pixels = pixels;
+ session.params.lines = lines;
+ session.params.depth = 8;
+ session.params.channels = channels;
+ session.params.scan_method = dev->settings.scan_method;
+ session.params.scan_mode = ScanColorMode::GRAY;
+ session.params.color_filter = ColorFilter::RED;
+ session.params.flags = ScanFlag::DISABLE_SHADING | ScanFlag::DISABLE_GAMMA;
+ compute_session(dev, session, sensor);
+
+ size = pixels * channels * lines * (session.params.depth / 8);
+ std::vector<uint8_t> data(size);
+
+ init_regs_for_scan_session(dev, sensor, &local_reg, session);
+
+ /* set up for reverse or forward */
+ r = sanei_genesys_get_address(&local_reg, 0x02);
+ if (forward) {
+ r->value &= ~4;
+ } else {
+ r->value |= 4;
+ }
+
+ dev->interface->write_registers(local_reg);
+
+ dev->cmd_set->begin_scan(dev, sensor, &local_reg, true);
+
+ if (is_testing_mode()) {
+ dev->interface->test_checkpoint("search_strip");
+ gl841_stop_action(dev);
+ return;
+ }
+
+ // waits for valid data
+ wait_until_buffer_non_empty(dev);
+
+ // now we're on target, we can read data
+ sanei_genesys_read_data_from_scanner(dev, data.data(), size);
+
+ gl841_stop_action(dev);
+
+ pass = 0;
+ if (DBG_LEVEL >= DBG_data)
+ {
+ std::sprintf(title, "gl841_search_strip_%s_%s%02u.pnm", black ? "black" : "white",
+ forward ? "fwd" : "bwd", pass);
+ sanei_genesys_write_pnm_file(title, data.data(), session.params.depth,
+ channels, pixels, lines);
+ }
+
+ /* loop until strip is found or maximum pass number done */
+ found = 0;
+ while (pass < length && !found)
+ {
+ dev->interface->write_registers(local_reg);
+
+ //now start scan
+ dev->cmd_set->begin_scan(dev, sensor, &local_reg, true);
+
+ // waits for valid data
+ wait_until_buffer_non_empty(dev);
+
+ // now we're on target, we can read data
+ sanei_genesys_read_data_from_scanner(dev, data.data(), size);
+
+ gl841_stop_action (dev);
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ std::sprintf(title, "gl841_search_strip_%s_%s%02u.pnm",
+ black ? "black" : "white", forward ? "fwd" : "bwd", pass);
+ sanei_genesys_write_pnm_file(title, data.data(), session.params.depth,
+ channels, pixels, lines);
+ }
+
+ /* search data to find black strip */
+ /* when searching forward, we only need one line of the searched color since we
+ * will scan forward. But when doing backward search, we need all the area of the
+ * same color */
+ if (forward)
+ {
+ for (y = 0; y < lines && !found; y++)
+ {
+ count = 0;
+ /* count of white/black pixels depending on the color searched */
+ for (x = 0; x < pixels; x++)
+ {
+ /* when searching for black, detect white pixels */
+ if (black && data[y * pixels + x] > white_level)
+ {
+ count++;
+ }
+ /* when searching for white, detect black pixels */
+ if (!black && data[y * pixels + x] < black_level)
+ {
+ count++;
+ }
+ }
+
+ /* at end of line, if count >= 3%, line is not fully of the desired color
+ * so we must go to next line of the buffer */
+ /* count*100/pixels < 3 */
+ if ((count * 100) / pixels < 3)
+ {
+ found = 1;
+ DBG(DBG_data, "%s: strip found forward during pass %d at line %d\n", __func__,
+ pass, y);
+ }
+ else
+ {
+ DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count,
+ (100 * count) / pixels);
+ }
+ }
+ }
+ else /* since calibration scans are done forward, we need the whole area
+ to be of the required color when searching backward */
+ {
+ count = 0;
+ for (y = 0; y < lines; y++)
+ {
+ /* count of white/black pixels depending on the color searched */
+ for (x = 0; x < pixels; x++)
+ {
+ /* when searching for black, detect white pixels */
+ if (black && data[y * pixels + x] > white_level)
+ {
+ count++;
+ }
+ /* when searching for white, detect black pixels */
+ if (!black && data[y * pixels + x] < black_level)
+ {
+ count++;
+ }
+ }
+ }
+
+ /* at end of area, if count >= 3%, area is not fully of the desired color
+ * so we must go to next buffer */
+ if ((count * 100) / (pixels * lines) < 3)
+ {
+ found = 1;
+ DBG(DBG_data, "%s: strip found backward during pass %d \n", __func__, pass);
+ }
+ else
+ {
+ DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count,
+ (100 * count) / pixels);
+ }
+ }
+ pass++;
+ }
+
+ if (found)
+ {
+ DBG(DBG_info, "%s: %s strip found\n", __func__, black ? "black" : "white");
+ }
+ else
+ {
+ throw SaneException(SANE_STATUS_UNSUPPORTED, "%s strip not found", black ? "black" : "white");
+ }
+}
+
+/**
+ * Send shading calibration data. The buffer is considered to always hold values
+ * for all the channels.
+ */
+void CommandSetGl841::send_shading_data(Genesys_Device* dev, const Genesys_Sensor& sensor,
+ uint8_t* data, int size) const
+{
+ DBG_HELPER_ARGS(dbg, "writing %d bytes of shading data", size);
+ uint32_t length, x, factor, pixels, i;
+ uint16_t dpiset, dpihw, beginpixel;
+ uint8_t *ptr,*src;
+
+ /* old method if no SHDAREA */
+ if ((dev->reg.find_reg(0x01).value & REG_0x01_SHDAREA) == 0) {
+ dev->interface->write_buffer(0x3c, 0x0000, data, size);
+ return;
+ }
+
+ /* data is whole line, we extract only the part for the scanned area */
+ length = static_cast<std::uint32_t>(size / 3);
+ unsigned strpixel = dev->session.pixel_startx;
+ unsigned endpixel = dev->session.pixel_endx;
+
+ /* compute deletion/average factor */
+ dpiset = dev->reg.get16(REG_DPISET);
+ dpihw = gl841_get_dpihw(dev);
+ unsigned ccd_size_divisor = dev->session.ccd_size_divisor;
+ factor=dpihw/dpiset;
+ DBG(DBG_io2, "%s: dpihw=%d, dpiset=%d, ccd_size_divisor=%d, factor=%d\n", __func__, dpihw, dpiset,
+ ccd_size_divisor, factor);
+
+ /* turn pixel value into bytes 2x16 bits words */
+ strpixel*=2*2; /* 2 words of 2 bytes */
+ endpixel*=2*2;
+ pixels=endpixel-strpixel;
+
+ /* shading pixel begin is start pixel minus start pixel during shading
+ * calibration. Currently only cases handled are full and half ccd resolution.
+ */
+ beginpixel = sensor.ccd_start_xoffset / ccd_size_divisor;
+ beginpixel += sensor.dummy_pixel + 1;
+ DBG(DBG_io2, "%s: ORIGIN PIXEL=%d\n", __func__, beginpixel);
+ beginpixel = (strpixel-beginpixel*2*2)/factor;
+ DBG(DBG_io2, "%s: BEGIN PIXEL=%d\n", __func__, beginpixel/4);
+
+ dev->interface->record_key_value("shading_offset", std::to_string(beginpixel));
+ dev->interface->record_key_value("shading_pixels", std::to_string(pixels));
+ dev->interface->record_key_value("shading_length", std::to_string(length));
+
+ DBG(DBG_io2, "%s: using chunks of %d bytes (%d shading data pixels)\n", __func__, length,
+ length/4);
+ std::vector<uint8_t> buffer(pixels, 0);
+
+ /* write actual shading data contigously
+ * channel by channel, starting at addr 0x0000
+ * */
+ for(i=0;i<3;i++)
+ {
+ /* copy data to work buffer and process it */
+ /* coefficent destination */
+ ptr=buffer.data();
+
+ /* iterate on both sensor segment, data has been averaged,
+ * so is in the right order and we only have to copy it */
+ for(x=0;x<pixels;x+=4)
+ {
+ /* coefficient source */
+ src=data+x+beginpixel+i*length;
+ ptr[0]=src[0];
+ ptr[1]=src[1];
+ ptr[2]=src[2];
+ ptr[3]=src[3];
+
+ /* next shading coefficient */
+ ptr+=4;
+ }
+
+ // 0x5400 alignment for LIDE80 internal memory
+ dev->interface->write_buffer(0x3c, 0x5400 * i, buffer.data(), pixels);
+ }
+}
+
+bool CommandSetGl841::needs_home_before_init_regs_for_scan(Genesys_Device* dev) const
+{
+ (void) dev;
+ return true;
+}
+
+void CommandSetGl841::wait_for_motor_stop(Genesys_Device* dev) const
+{
+ (void) dev;
+}
+
+void CommandSetGl841::move_to_ta(Genesys_Device* dev) const
+{
+ (void) dev;
+ throw SaneException("not implemented");
+}
+
+void CommandSetGl841::asic_boot(Genesys_Device *dev, bool cold) const
+{
+ (void) dev;
+ (void) cold;
+ throw SaneException("not implemented");
+}
+
+std::unique_ptr<CommandSet> create_gl841_cmd_set()
+{
+ return std::unique_ptr<CommandSet>(new CommandSetGl841{});
+}
+
+} // namespace gl841
+} // namespace genesys
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 03:33:02 +0000