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sane-project-backends/backend/genesys/gl841.cpp

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122 KiB
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Czysty Wina Historia

/* 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
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);
dev->interface->write_register(REG_0x6C, 0x00);
dev->interface->write_register(REG_0x6D, 0x8f);
dev->interface->write_register(REG_0x6B, 0x0e);
dev->interface->write_register(REG_0x6B, 0x0e);
dev->interface->write_register(REG_0x6B, 0x0a);
dev->interface->write_register(REG_0x6B, 0x02);
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;
unsigned sensor_pixels = dev->model->x_size_calib_mm * sensor.optical_res / MM_PER_INCH;
if (sensor_pixels < 0x1500) {
dpihw = 600;
} else if (sensor_pixels < 0x2a80) {
dpihw = 1200;
} else if (sensor_pixels < 0x5400) {
dpihw = 2400;
} else {
throw SaneException("Cannot handle sensor pixel count %d", 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;
/*#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 (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);
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_with_step_type(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) ||
has_flag(dev->model->flags, ModelFlag::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, session.optical_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,
session.optical_line_count, dummy, move, motor_flag);
}
dev->read_buffer.clear();
dev->read_buffer.alloc(session.buffer_size_read);
build_image_pipeline(dev, sensor, 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
{
DBG_HELPER(dbg);
debug_dump(DBG_info, 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 ModelFlag::SEARCH_START y_offset is
// relative from origin, else, it is from parking position
float move = 0.0f;
if (has_flag(dev->model->flags, ModelFlag::SEARCH_START)) {
move += dev->model->y_offset_calib_white;
}
move += dev->model->y_offset;
move += dev->settings.tl_y;
int move_dpi = dev->motor.base_ydpi;
move = static_cast<float>((move * move_dpi) / MM_PER_INCH);
float start = dev->model->x_offset;
start += dev->settings.tl_x;
start = static_cast<float>((start * dev->settings.xres) / 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);
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->initial_regs.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->initial_regs.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->initial_regs.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->initial_regs.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 = dev->model->eject_feed;
if (dev->document) {
feed_mm += 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 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(ScanHeadId::PRIMARY);
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);
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::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);
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
auto image = read_unshuffled_image_from_scanner(dev, session, session.output_total_bytes);
if (DBG_LEVEL >= DBG_data) {
sanei_genesys_write_pnm_file("gl841_search_position.pnm", image);
}
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, image.get_row_ptr(0), 0, dpi,
pixels, dev->model->search_lines);
}
}
// 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(dbg);
unsigned channels = 3;
unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, channels,
dev->settings.scan_method);
unsigned calib_lines =
static_cast<unsigned>(dev->model->y_size_calib_dark_white_mm * resolution / MM_PER_INCH);
unsigned starty =
static_cast<unsigned>(dev->model->y_offset_calib_dark_white_mm * dev->motor.base_ydpi / MM_PER_INCH);
ScanSession session;
session.params.xres = resolution;
session.params.yres = resolution;
session.params.startx = 0;
session.params.starty = starty;
session.params.pixels = dev->model->x_size_calib_mm * resolution / MM_PER_INCH;
session.params.lines = calib_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;
compute_session(dev, session, calib_sensor);
init_regs_for_scan_session(dev, calib_sensor, &regs, session);
dev->calib_session = session;
}
// set up registers for the actual scan
void CommandSetGl841::init_regs_for_scan(Genesys_Device* dev, const Genesys_Sensor& sensor,
Genesys_Register_Set& regs) const
{
DBG_HELPER(dbg);
debug_dump(DBG_info, dev->settings);
auto session = calculate_scan_session(dev, sensor, dev->settings);
init_regs_for_scan_session(dev, sensor, &regs, 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 i;
int avg[3], avga, avge;
int turn;
uint16_t exp[3], target;
/* 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) {
unsigned move = static_cast<unsigned>(
(dev->model->y_offset_calib_white * (dev->motor.base_ydpi)) / MM_PER_INCH);
scanner_move(*dev, dev->model->default_method, move, Direction::FORWARD);
}
/* offset calibration is always done in color mode */
unsigned channels = 3;
unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
const auto& calib_sensor_base = sanei_genesys_find_sensor(dev, resolution, channels,
dev->settings.scan_method);
ScanSession session;
session.params.xres = resolution;
session.params.yres = dev->settings.yres;
session.params.startx = 0;
session.params.starty = 0;
session.params.pixels = dev->model->x_size_calib_mm * resolution / MM_PER_INCH;
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_STAGGER_OFFSET |
ScanFlag::IGNORE_COLOR_OFFSET;
compute_session(dev, session, calib_sensor_base);
init_regs_for_scan_session(dev, calib_sensor_base, &regs, session);
dev->interface->write_registers(regs);
std::vector<uint8_t> line(session.output_line_bytes);
/*
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;
}
auto image = read_unshuffled_image_from_scanner(dev, session, session.output_line_bytes);
if (DBG_LEVEL >= DBG_data) {
char fn[30];
std::snprintf(fn, 30, "gl841_led_%d.pnm", turn);
sanei_genesys_write_pnm_file(fn, image);
}
for (unsigned ch = 0; ch < channels; ch++) {
avg[ch] = 0;
for (std::size_t x = 0; x < image.get_width(); x++) {
avg[ch] += image.get_raw_channel(x, 0, ch);
}
avg[ch] /= image.get_width();
}
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 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);
const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, 3,
dev->settings.scan_method);
unsigned num_pixels = dev->model->x_size_calib_mm * resolution / MM_PER_INCH;
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_STAGGER_OFFSET |
ScanFlag::IGNORE_COLOR_OFFSET;
compute_session(dev, session, calib_sensor);
dev->cmd_set->init_regs_for_scan_session(dev, calib_sensor, &regs, session);
// FIXME: we're reading twice as much data for no reason
std::size_t total_size = session.output_line_bytes * 2;
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 (std::size_t 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 off[3],offh[3],offl[3],off1[3],off2[3];
int min1[3],min2[3];
unsigned 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) {
ad_fe_offset_calibration(dev, sensor, regs);
return;
}
/* offset calibration is always done in color mode */
unsigned channels = 3;
unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, channels,
dev->settings.scan_method);
ScanSession session;
session.params.xres = resolution;
session.params.yres = dev->settings.yres;
session.params.startx = 0;
session.params.starty = 0;
session.params.pixels = dev->model->x_size_calib_mm * resolution / MM_PER_INCH;
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_STAGGER_OFFSET |
ScanFlag::IGNORE_COLOR_OFFSET |
ScanFlag::DISABLE_LAMP;
compute_session(dev, session, calib_sensor);
init_regs_for_scan_session(dev, calib_sensor, &regs, session);
/* 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;
Image first_line;
bool acceptable = false;
do {
dev->interface->write_registers(regs);
for (unsigned 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;
}
first_line = read_unshuffled_image_from_scanner(dev, session, session.output_total_bytes);
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);
}
acceptable = true;
for (unsigned ch = 0; ch < channels; ch++) {
cmin[ch] = 0;
cmax[ch] = 0;
for (std::size_t x = 0; x < first_line.get_width(); x++) {
auto value = first_line.get_raw_channel(x, 0, ch);
if (value < 10) {
cmin[ch]++;
}
if (value > 65525) {
cmax[ch]++;
}
}
/* 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[ch] -= 20;
}
if (cmin[ch] > first_line.get_width() / 100) {
acceptable = false;
if (dev->model->is_cis)
offl[0] = off[0];
else
offl[ch] = off[ch];
}
if (cmax[ch] > first_line.get_width() / 100) {
acceptable = false;
if (dev->model->is_cis)
offh[0] = off[0];
else
offh[ch] = off[ch];
}
}
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 (unsigned ch = 0; ch < channels; ch++) {
off1[ch] = off[ch];
min1[ch] = 65536;
for (std::size_t x = 0; x < first_line.get_width(); x++) {
auto value = first_line.get_raw_channel(x, 0, ch);
if (min1[ch] > value && value >= 10) {
min1[ch] = value;
}
}
}
offl[0] = off[0];
offl[1] = off[0];
offl[2] = off[0];
turn = 0;
Image second_line;
do {
for (unsigned 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);
second_line = read_unshuffled_image_from_scanner(dev, session, session.output_total_bytes);
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);
}
acceptable = true;
for (unsigned ch = 0; ch < channels; ch++) {
cmin[ch] = 0;
cmax[ch] = 0;
for (std::size_t x = 0; x < second_line.get_width(); x++) {
auto value = second_line.get_raw_channel(x, 0, ch);
if (value < 10) {
cmin[ch]++;
}
if (value > 65525) {
cmax[ch]++;
}
}
if (cmin[ch] > second_line.get_width() / 100) {
acceptable = false;
if (dev->model->is_cis)
offl[0] = off[0];
else
offl[ch] = off[ch];
}
if (cmax[ch] > second_line.get_width() / 100) {
acceptable = false;
if (dev->model->is_cis)
offh[0] = off[0];
else
offh[ch] = off[ch];
}
}
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 (unsigned ch = 0; ch < channels; ch++) {
off2[ch] = off[ch];
min2[ch] = 65536;
for (std::size_t x = 0; x < second_line.get_width(); x++) {
auto value = second_line.get_raw_channel(x, 0, ch);
if (min2[ch] > value && value != 0) {
min2[ch] = value;
}
}
}
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 (unsigned ch = 0; ch < channels; ch++) {
if (min2[ch] - min1[ch] == 0) {
/*TODO: try to avoid this*/
DBG(DBG_warn, "%s: difference too small\n", __func__);
if (mintgt * (off1[ch] - off2[ch]) + min1[ch] * off2[ch] - min2[ch] * off1[ch] >= 0) {
off[ch] = 0x0000;
} else {
off[ch] = 0xffff;
}
} else {
off[ch] = (mintgt * (off1[ch] - off2[ch]) + min1[ch] * off2[ch] - min2[ch] * off1[ch])/(min1[ch]-min2[ch]);
}
if (off[ch] > 255) {
off[ch] = 255;
}
if (off[ch] < 0) {
off[ch] = 0;
}
dev->frontend.set_offset(ch, off[ch]);
}
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);
float gain[3];
int lines=1;
// feed to white strip if needed
if (dev->model->y_offset_calib_white > 0) {
unsigned move = static_cast<unsigned>(
(dev->model->y_offset_calib_white * (dev->motor.base_ydpi)) / MM_PER_INCH);
scanner_move(*dev, dev->model->default_method, move, Direction::FORWARD);
}
/* coarse gain calibration is allways done in color mode */
unsigned channels = 3;
unsigned resolution = sensor.get_logical_hwdpi(dev->settings.xres);
const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, channels,
dev->settings.scan_method);
unsigned num_pixels = dev->model->x_size_calib_mm * resolution / MM_PER_INCH;
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_STAGGER_OFFSET |
ScanFlag::IGNORE_COLOR_OFFSET;
compute_session(dev, session, calib_sensor);
init_regs_for_scan_session(dev, calib_sensor, &regs, session);
dev->interface->write_registers(regs);
std::vector<uint8_t> line(session.output_total_bytes);
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;
}
auto image = read_unshuffled_image_from_scanner(dev, session, session.output_total_bytes);
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 (unsigned ch = 0; ch < channels; ch++) {
unsigned max = 0;
for (std::size_t x = 0; x < image.get_width(); x++) {
auto value = image.get_raw_channel(x, 0, ch);
if (value > max) {
max = value;
}
}
gain[ch] = 65535.0f / max;
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[ch] *= 0.69f; // seems we don't get the real maximum. empirically derived
if (283 - 208 / gain[ch] > 255) {
out_gain = 255;
} else if (283 - 208 / gain[ch] < 0) {
out_gain = 0;
} else {
out_gain = static_cast<std::uint8_t>(283 - 208 / gain[ch]);
}
} else if (dev->model->adc_id == AdcId::CANON_LIDE_80) {
out_gain = static_cast<std::uint8_t>(gain[ch] * 12);
}
dev->frontend.set_gain(ch, out_gain);
DBG(DBG_proc, "%s: channel %d, max=%d, gain = %f, setting:%d\n", __func__, ch, max,
gain[ch], out_gain);
}
for (unsigned j = 0; j < channels; j++) {
if (gain[j] > 30) {
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_STAGGER_OFFSET |
ScanFlag::IGNORE_COLOR_OFFSET;
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 */
}
/*
* 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);
scanner_move(*dev, dev->model->default_method, 232, Direction::FORWARD);
// 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
{
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->initial_regs and requires it to be filled
dev->initial_regs = dev->reg;
// Move home
dev->cmd_set->move_back_home(dev, true);
// Init shading data
unsigned sensor_pixels = dev->model->x_size_calib_mm * sensor.optical_res / MM_PER_INCH;
sanei_genesys_init_shading_data(dev, sensor, sensor_pixels);
/* ensure head is correctly parked, and check lock */
if (has_flag(dev->model->flags, ModelFlag::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->initial_regs;
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_STAGGER_OFFSET |
ScanFlag::IGNORE_COLOR_OFFSET;
compute_session(dev, session, calib_sensor);
init_regs_for_scan_session(dev, calib_sensor, &regs, session);
dev->interface->write_registers(regs);
std::vector<uint8_t> line(session.output_line_bytes);
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(), session.output_line_bytes);
});
}
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 lines, channels;
Genesys_Register_Set local_reg;
unsigned int pass, count, found, 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 = 10; // TODO: use dev->model->search_lines
lines = static_cast<unsigned>((lines * dpi) / MM_PER_INCH);
/* 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 = dev->model->x_size_calib_mm * dpi / MM_PER_INCH;
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);
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
auto image = read_unshuffled_image_from_scanner(dev, session, session.output_total_bytes);
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, image);
}
/* 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
image = read_unshuffled_image_from_scanner(dev, session, session.output_total_bytes);
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, image);
}
/* 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 (std::size_t y = 0; y < image.get_height() && !found; y++) {
count = 0;
// count of white/black pixels depending on the color searched
for (std::size_t x = 0; x < image.get_width(); x++) {
// when searching for black, detect white pixels
if (black && image.get_raw_channel(x, y, 0) > white_level) {
count++;
}
// when searching for white, detect black pixels
if (!black && image.get_raw_channel(x, y, 0) < 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 */
auto found_percentage = (count * 100 / image.get_width());
if (found_percentage < 3) {
found = 1;
DBG(DBG_data, "%s: strip found forward during pass %d at line %zu\n", __func__,
pass, y);
} else {
DBG(DBG_data, "%s: pixels=%zu, count=%d (%zu%%)\n", __func__, image.get_width(),
count, found_percentage);
}
}
} else {
/* since calibration scans are done forward, we need the whole area
to be of the required color when searching backward
*/
count = 0;
for (std::size_t y = 0; y < image.get_height(); y++) {
/* count of white/black pixels depending on the color searched */
for (std::size_t x = 0; x < image.get_width(); x++) {
// when searching for black, detect white pixels
if (black && image.get_raw_channel(x, y, 0) > white_level) {
count++;
}
// when searching for white, detect black pixels
if (!black && image.get_raw_channel(x, y, 0) < 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 */
auto found_percentage = count * 100 / (image.get_width() * image.get_height());
if (found_percentage < 3) {
found = 1;
DBG(DBG_data, "%s: strip found backward during pass %d \n", __func__, pass);
} else {
DBG(DBG_data, "%s: pixels=%zu, count=%d (%zu%%)\n", __func__, image.get_width(), count,
found_percentage);
}
}
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
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