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Diffstat (limited to 'backend/genesys/gl846.cpp')
| -rw-r--r-- | backend/genesys/gl846.cpp | 2098 |
1 files changed, 2098 insertions, 0 deletions
diff --git a/backend/genesys/gl846.cpp b/backend/genesys/gl846.cpp new file mode 100644 index 0000000..d309d29 --- /dev/null +++ b/backend/genesys/gl846.cpp @@ -0,0 +1,2098 @@ +/* sane - Scanner Access Now Easy. + + Copyright (C) 2012-2013 Stéphane Voltz <stef.dev@free.fr> + + + 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. +*/ + +/** @file + * + * This file handles GL846 and GL845 ASICs since they are really close to each other. + */ + +#define DEBUG_DECLARE_ONLY + +#include "gl846.h" +#include "gl846_registers.h" +#include "test_settings.h" + +#include <vector> + +namespace genesys { +namespace gl846 { + +/** + * compute the step multiplier used + */ +static int +gl846_get_step_multiplier (Genesys_Register_Set * regs) +{ + GenesysRegister *r = sanei_genesys_get_address(regs, 0x9d); + int value = 1; + if (r != nullptr) { + value = (r->value & 0x0f)>>1; + value = 1 << value; + } + DBG (DBG_io, "%s: step multiplier is %d\n", __func__, value); + return value; +} + +/** @brief sensor specific settings +*/ +static void gl846_setup_sensor(Genesys_Device * dev, const Genesys_Sensor& sensor, + Genesys_Register_Set* regs) +{ + DBG_HELPER(dbg); + + for (const auto& reg : sensor.custom_regs) { + regs->set8(reg.address, reg.value); + } + + regs->set16(REG_EXPR, sensor.exposure.red); + regs->set16(REG_EXPG, sensor.exposure.green); + regs->set16(REG_EXPB, sensor.exposure.blue); + + dev->segment_order = sensor.segment_order; +} + + +/** @brief set all registers to default values . + * This function is called only once at the beginning and + * fills register startup values for registers reused across scans. + * Those that are rarely modified or not modified are written + * individually. + * @param dev device structure holding register set to initialize + */ +static void +gl846_init_registers (Genesys_Device * dev) +{ + DBG_HELPER(dbg); + + dev->reg.clear(); + + dev->reg.init_reg(0x01, 0x60); + dev->reg.init_reg(0x02, 0x38); + dev->reg.init_reg(0x03, 0x03); + dev->reg.init_reg(0x04, 0x22); + dev->reg.init_reg(0x05, 0x60); + dev->reg.init_reg(0x06, 0x10); + dev->reg.init_reg(0x08, 0x60); + dev->reg.init_reg(0x09, 0x00); + dev->reg.init_reg(0x0a, 0x00); + dev->reg.init_reg(0x0b, 0x8b); + dev->reg.init_reg(0x0c, 0x00); + dev->reg.init_reg(0x0d, 0x00); + dev->reg.init_reg(0x10, 0x00); + dev->reg.init_reg(0x11, 0x00); + dev->reg.init_reg(0x12, 0x00); + dev->reg.init_reg(0x13, 0x00); + dev->reg.init_reg(0x14, 0x00); + dev->reg.init_reg(0x15, 0x00); + dev->reg.init_reg(0x16, 0xbb); // SENSOR_DEF + dev->reg.init_reg(0x17, 0x13); // SENSOR_DEF + dev->reg.init_reg(0x18, 0x10); // SENSOR_DEF + dev->reg.init_reg(0x19, 0x2a); // SENSOR_DEF + dev->reg.init_reg(0x1a, 0x34); // SENSOR_DEF + dev->reg.init_reg(0x1b, 0x00); // SENSOR_DEF + dev->reg.init_reg(0x1c, 0x20); // SENSOR_DEF + dev->reg.init_reg(0x1d, 0x06); // SENSOR_DEF + dev->reg.init_reg(0x1e, 0xf0); + dev->reg.init_reg(0x1f, 0x01); + dev->reg.init_reg(0x20, 0x03); + dev->reg.init_reg(0x21, 0x10); + dev->reg.init_reg(0x22, 0x60); + dev->reg.init_reg(0x23, 0x60); + dev->reg.init_reg(0x24, 0x60); + dev->reg.init_reg(0x25, 0x00); + dev->reg.init_reg(0x26, 0x00); + dev->reg.init_reg(0x27, 0x00); + dev->reg.init_reg(0x2c, 0x00); + dev->reg.init_reg(0x2d, 0x00); + dev->reg.init_reg(0x2e, 0x80); + dev->reg.init_reg(0x2f, 0x80); + dev->reg.init_reg(0x30, 0x00); + dev->reg.init_reg(0x31, 0x00); + dev->reg.init_reg(0x32, 0x00); + dev->reg.init_reg(0x33, 0x00); + dev->reg.init_reg(0x34, 0x1f); + dev->reg.init_reg(0x35, 0x00); + dev->reg.init_reg(0x36, 0x40); + dev->reg.init_reg(0x37, 0x00); + 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, 0x01); + dev->reg.init_reg(0x52, 0x02); // SENSOR_DEF + dev->reg.init_reg(0x53, 0x04); // SENSOR_DEF + dev->reg.init_reg(0x54, 0x06); // SENSOR_DEF + dev->reg.init_reg(0x55, 0x08); // SENSOR_DEF + dev->reg.init_reg(0x56, 0x0a); // SENSOR_DEF + dev->reg.init_reg(0x57, 0x00); // SENSOR_DEF + dev->reg.init_reg(0x58, 0x59); // SENSOR_DEF + dev->reg.init_reg(0x59, 0x31); // SENSOR_DEF + dev->reg.init_reg(0x5a, 0x40); // SENSOR_DEF + dev->reg.init_reg(0x5e, 0x1f); + dev->reg.init_reg(0x5f, 0x01); + 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(0x67, 0x7f); + dev->reg.init_reg(0x68, 0x7f); + dev->reg.init_reg(0x69, 0x01); + dev->reg.init_reg(0x6a, 0x01); + dev->reg.init_reg(0x70, 0x01); + dev->reg.init_reg(0x71, 0x00); + dev->reg.init_reg(0x72, 0x02); + dev->reg.init_reg(0x73, 0x01); + dev->reg.init_reg(0x74, 0x00); // SENSOR_DEF + dev->reg.init_reg(0x75, 0x00); // SENSOR_DEF + dev->reg.init_reg(0x76, 0x00); // SENSOR_DEF + dev->reg.init_reg(0x77, 0x00); // SENSOR_DEF + dev->reg.init_reg(0x78, 0x00); // SENSOR_DEF + dev->reg.init_reg(0x79, 0x3f); // SENSOR_DEF + dev->reg.init_reg(0x7a, 0x00); // SENSOR_DEF + dev->reg.init_reg(0x7b, 0x09); // SENSOR_DEF + dev->reg.init_reg(0x7c, 0x99); // SENSOR_DEF + dev->reg.init_reg(0x7d, 0x20); + dev->reg.init_reg(0x7f, 0x05); + dev->reg.init_reg(0x80, 0x4f); + dev->reg.init_reg(0x87, 0x02); + dev->reg.init_reg(0x94, 0xff); + dev->reg.init_reg(0x9d, 0x04); + dev->reg.init_reg(0x9e, 0x00); + dev->reg.init_reg(0xa1, 0xe0); + dev->reg.init_reg(0xa2, 0x1f); + dev->reg.init_reg(0xab, 0xc0); + dev->reg.init_reg(0xbb, 0x00); + dev->reg.init_reg(0xbc, 0x0f); + dev->reg.init_reg(0xdb, 0xff); + dev->reg.init_reg(0xfe, 0x08); + dev->reg.init_reg(0xff, 0x02); + dev->reg.init_reg(0x98, 0x20); + dev->reg.init_reg(0x99, 0x00); + dev->reg.init_reg(0x9a, 0x90); + dev->reg.init_reg(0x9b, 0x00); + dev->reg.init_reg(0xf8, 0x05); + + const auto& sensor = sanei_genesys_find_sensor_any(dev); + sanei_genesys_set_dpihw(dev->reg, sensor, sensor.optical_res); + + /* initalize calibration reg */ + dev->calib_reg = dev->reg; +} + +/**@brief send slope table for motor movement + * Send slope_table in machine byte order + * @param dev device to send slope table + * @param table_nr index of the slope table in ASIC memory + * Must be in the [0-4] range. + * @param slope_table pointer to 16 bit values array of the slope table + * @param steps number of elements in the slope table + */ +static void gl846_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 i; + char msg[10000]; + + /* sanity check */ + if(table_nr<0 || table_nr>4) + { + throw SaneException("invalid table number %d", table_nr); + } + + std::vector<uint8_t> table(steps * 2); + for (i = 0; i < steps; i++) + { + table[i * 2] = slope_table[i] & 0xff; + table[i * 2 + 1] = slope_table[i] >> 8; + } + + if (DBG_LEVEL >= DBG_io) + { + std::sprintf(msg, "write slope %d (%d)=", table_nr, steps); + for (i = 0; i < steps; i++) + { + std::sprintf(msg+strlen(msg), "%d", slope_table[i]); + } + DBG (DBG_io, "%s: %s\n", __func__, msg); + } + + if (dev->interface->is_mock()) { + dev->interface->record_slope_table(table_nr, slope_table); + } + // slope table addresses are fixed + dev->interface->write_ahb(0x10000000 + 0x4000 * table_nr, steps * 2, table.data()); +} + +/** + * Set register values of Analog Device type frontend + * */ +static void gl846_set_adi_fe(Genesys_Device* dev, uint8_t set) +{ + DBG_HELPER(dbg); + int i; + + // wait for FE to be ready + auto status = scanner_read_status(*dev); + while (status.is_front_end_busy) { + dev->interface->sleep_ms(10); + status = scanner_read_status(*dev); + }; + + 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 < 3; i++) { + dev->interface->write_fe_register(0x02 + i, dev->frontend.get_gain(i)); + } + for (i = 0; i < 3; i++) { + dev->interface->write_fe_register(0x05 + i, dev->frontend.get_offset(i)); + } +} + +// Set values of analog frontend +void CommandSetGl846::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; + + /* route to specific analog frontend setup */ + uint8_t frontend_type = dev->reg.find_reg(0x04).value & REG_0x04_FESET; + switch (frontend_type) { + case 0x02: /* ADI FE */ + gl846_set_adi_fe(dev, set); + break; + default: + throw SaneException("unsupported frontend type %d", frontend_type); + } +} + + +// @brief set up motor related register for scan +static void gl846_init_motor_regs_scan(Genesys_Device* dev, + const Genesys_Sensor& sensor, + Genesys_Register_Set* reg, + const Motor_Profile& motor_profile, + unsigned int scan_exposure_time, + unsigned scan_yres, + unsigned int scan_lines, + unsigned int scan_dummy, + unsigned int feed_steps, + MotorFlag flags) +{ + DBG_HELPER_ARGS(dbg, "scan_exposure_time=%d, scan_yres=%d, step_type=%d, scan_lines=%d, " + "scan_dummy=%d, feed_steps=%d, flags=%x", + scan_exposure_time, scan_yres, static_cast<unsigned>(motor_profile.step_type), + scan_lines, scan_dummy, feed_steps, static_cast<unsigned>(flags)); + int use_fast_fed; + unsigned int fast_dpi; + unsigned int feedl, dist; + GenesysRegister *r; + uint32_t z1, z2; + unsigned int min_restep = 0x20; + uint8_t val; + unsigned int ccdlmt,tgtime; + + unsigned step_multiplier = gl846_get_step_multiplier(reg); + + use_fast_fed=0; + /* no fast fed since feed works well */ + if (dev->settings.yres == 4444 && feed_steps > 100 && !has_flag(flags, MotorFlag::FEED)) { + use_fast_fed = 1; + } + DBG (DBG_io, "%s: use_fast_fed=%d\n", __func__, use_fast_fed); + + reg->set24(REG_LINCNT, scan_lines); + DBG (DBG_io, "%s: lincnt=%d\n", __func__, scan_lines); + + /* compute register 02 value */ + r = sanei_genesys_get_address(reg, REG_0x02); + r->value = 0x00; + sanei_genesys_set_motor_power(*reg, true); + + if (use_fast_fed) + r->value |= REG_0x02_FASTFED; + else + r->value &= ~REG_0x02_FASTFED; + + if (has_flag(flags, MotorFlag::AUTO_GO_HOME)) { + r->value |= REG_0x02_AGOHOME | REG_0x02_NOTHOME; + } + + if (has_flag(flags, MotorFlag::DISABLE_BUFFER_FULL_MOVE) ||(scan_yres>=sensor.optical_res)) { + r->value |= REG_0x02_ACDCDIS; + } + if (has_flag(flags, MotorFlag::REVERSE)) { + r->value |= REG_0x02_MTRREV; + } else { + r->value &= ~REG_0x02_MTRREV; + } + + /* scan and backtracking slope table */ + auto scan_table = sanei_genesys_slope_table(dev->model->asic_type, scan_yres, + scan_exposure_time, dev->motor.base_ydpi, + step_multiplier, motor_profile); + + gl846_send_slope_table(dev, SCAN_TABLE, scan_table.table, scan_table.steps_count); + gl846_send_slope_table(dev, BACKTRACK_TABLE, scan_table.table, scan_table.steps_count); + + /* fast table */ + fast_dpi=sanei_genesys_get_lowest_ydpi(dev); + + // BUG: looks like for fast moves we use inconsistent step type + StepType fast_step_type = motor_profile.step_type; + if (static_cast<unsigned>(motor_profile.step_type) >= static_cast<unsigned>(StepType::QUARTER)) { + fast_step_type = StepType::QUARTER; + } + + Motor_Profile fast_motor_profile = motor_profile; + fast_motor_profile.step_type = fast_step_type; + + auto fast_table = sanei_genesys_slope_table(dev->model->asic_type, fast_dpi, + scan_exposure_time, dev->motor.base_ydpi, + step_multiplier, fast_motor_profile); + + gl846_send_slope_table(dev, STOP_TABLE, fast_table.table, fast_table.steps_count); + gl846_send_slope_table(dev, FAST_TABLE, fast_table.table, fast_table.steps_count); + gl846_send_slope_table(dev, HOME_TABLE, fast_table.table, fast_table.steps_count); + + /* correct move distance by acceleration and deceleration amounts */ + feedl=feed_steps; + if (use_fast_fed) + { + feedl <<= static_cast<unsigned>(fast_step_type); + dist = (scan_table.steps_count + 2 * fast_table.steps_count); + /* TODO read and decode REG_0xAB */ + r = sanei_genesys_get_address (reg, 0x5e); + dist += (r->value & 31); + /* FEDCNT */ + r = sanei_genesys_get_address(reg, REG_FEDCNT); + dist += r->value; + } + else + { + feedl <<= static_cast<unsigned>(motor_profile.step_type); + dist = scan_table.steps_count; + if (has_flag(flags, MotorFlag::FEED)) { + dist *= 2; + } + } + DBG (DBG_io2, "%s: acceleration distance=%d\n", __func__, dist); + + /* check for overflow */ + if (dist < feedl) { + feedl -= dist; + } else { + feedl = 0; + } + + reg->set24(REG_FEEDL, feedl); + DBG (DBG_io ,"%s: feedl=%d\n",__func__,feedl); + + r = sanei_genesys_get_address(reg, REG_0x0C); + ccdlmt = (r->value & REG_0x0C_CCDLMT) + 1; + + r = sanei_genesys_get_address(reg, REG_0x1C); + tgtime = 1 << (r->value & REG_0x1C_TGTIME); + + /* hi res motor speed GPIO */ + /* + uint8_t effective = dev->interface->read_register(REG_0x6C); + */ + + /* if quarter step, bipolar Vref2 */ + /* XXX STEF XXX GPIO + if (motor_profile.step_type > 1) + { + if (motor_profile.step_type < 3) + { + val = effective & ~REG_0x6C_GPIO13; + } + else + { + val = effective | REG_0x6C_GPIO13; + } + } + else + { + val = effective; + } + dev->interface->write_register(REG_0x6C, val); + */ + + /* effective scan */ + /* + effective = dev->interface->read_register(REG_0x6C); + val = effective | REG_0x6C_GPIO10; + dev->interface->write_register(REG_0x6C, val); + */ + + if(dev->model->gpio_id == GpioId::IMG101) { + if (scan_yres == sensor.get_register_hwdpi(scan_yres)) { + val=1; + } + else + { + val=0; + } + dev->interface->write_register(REG_0x7E, val); + } + + min_restep = (scan_table.steps_count / step_multiplier) / 2 - 1; + if (min_restep < 1) { + min_restep = 1; + } + r = sanei_genesys_get_address(reg, REG_FWDSTEP); + r->value = min_restep; + r = sanei_genesys_get_address(reg, REG_BWDSTEP); + r->value = min_restep; + + sanei_genesys_calculate_zmod(use_fast_fed, + scan_exposure_time*ccdlmt*tgtime, + scan_table.table, + scan_table.steps_count, + feedl, + min_restep * step_multiplier, + &z1, + &z2); + + DBG(DBG_info, "%s: z1 = %d\n", __func__, z1); + reg->set24(REG_0x60, z1 | (static_cast<unsigned>(motor_profile.step_type) << (16 + REG_0x60S_STEPSEL))); + + DBG(DBG_info, "%s: z2 = %d\n", __func__, z2); + reg->set24(REG_0x63, z2 | (static_cast<unsigned>(motor_profile.step_type) << (16 + REG_0x63S_FSTPSEL))); + + r = sanei_genesys_get_address (reg, 0x1e); + r->value &= 0xf0; /* 0 dummy lines */ + r->value |= scan_dummy; /* dummy lines */ + + r = sanei_genesys_get_address(reg, REG_0x67); + r->value = 0x7f; + + r = sanei_genesys_get_address(reg, REG_0x68); + r->value = 0x7f; + + reg->set8(REG_STEPNO, scan_table.steps_count / step_multiplier); + reg->set8(REG_FASTNO, scan_table.steps_count / step_multiplier); + reg->set8(REG_FSHDEC, scan_table.steps_count / step_multiplier); + reg->set8(REG_FMOVNO, fast_table.steps_count / step_multiplier); + reg->set8(REG_FMOVDEC, fast_table.steps_count / step_multiplier); +} + + +/** @brief set up registers related to sensor + * Set up the following registers + 0x01 + 0x03 + 0x10-0x015 R/G/B exposures + 0x19 EXPDMY + 0x2e BWHI + 0x2f BWLO + 0x04 + 0x87 + 0x05 + 0x2c,0x2d DPISET + 0x30,0x31 STRPIXEL + 0x32,0x33 ENDPIXEL + 0x35,0x36,0x37 MAXWD [25:2] (>>2) + 0x38,0x39 LPERIOD + 0x34 DUMMY + */ +static void gl846_init_optical_regs_scan(Genesys_Device* dev, const Genesys_Sensor& sensor, + Genesys_Register_Set* reg, unsigned int exposure_time, + const ScanSession& session) +{ + DBG_HELPER_ARGS(dbg, "exposure_time=%d", exposure_time); + unsigned int dpihw; + GenesysRegister *r; + + // resolution is divided according to ccd_pixels_per_system_pixel() + unsigned ccd_pixels_per_system_pixel = sensor.ccd_pixels_per_system_pixel(); + DBG(DBG_io2, "%s: ccd_pixels_per_system_pixel=%d\n", __func__, ccd_pixels_per_system_pixel); + + // to manage high resolution device while keeping good low resolution scanning speed, + // we make hardware dpi vary + dpihw = sensor.get_register_hwdpi(session.params.xres * ccd_pixels_per_system_pixel); + DBG(DBG_io2, "%s: dpihw=%d\n", __func__, dpihw); + + gl846_setup_sensor(dev, sensor, reg); + + dev->cmd_set->set_fe(dev, sensor, AFE_SET); + + /* enable shading */ + regs_set_optical_off(dev->model->asic_type, *reg); + r = sanei_genesys_get_address(reg, REG_0x01); + r->value |= REG_0x01_SHDAREA; + if (has_flag(session.params.flags, ScanFlag::DISABLE_SHADING) || + (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION)) + { + r->value &= ~REG_0x01_DVDSET; + } + else + { + r->value |= REG_0x01_DVDSET; + } + + r = sanei_genesys_get_address(reg, 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, 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; + } + + r->value &= ~(REG_0x04_FILTER | REG_0x04_AFEMOD); + if (session.params.channels == 1) + { + switch (session.params.color_filter) + { + case ColorFilter::RED: + r->value |= 0x24; + break; + case ColorFilter::BLUE: + r->value |= 0x2c; + break; + case ColorFilter::GREEN: + r->value |= 0x28; + break; + default: + break; // should not happen + } + } else { + r->value |= 0x20; // mono + } + + sanei_genesys_set_dpihw(*reg, sensor, dpihw); + + 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; + } + + /* CIS scanners can do true gray by setting LEDADD */ + /* we set up LEDADD only when asked */ + if (dev->model->is_cis) { + r = sanei_genesys_get_address (reg, 0x87); + r->value &= ~REG_0x87_LEDADD; + if (session.enable_ledadd) { + r->value |= REG_0x87_LEDADD; + } + /* RGB weighting + r = sanei_genesys_get_address (reg, 0x01); + r->value &= ~REG_0x01_TRUEGRAY; + if (session.enable_ledadd)) + { + r->value |= REG_0x01_TRUEGRAY; + }*/ + } + + unsigned dpiset = session.params.xres * ccd_pixels_per_system_pixel; + reg->set16(REG_DPISET, dpiset); + DBG(DBG_io2, "%s: dpiset used=%d\n", __func__, dpiset); + + reg->set16(REG_STRPIXEL, session.pixel_startx); + reg->set16(REG_ENDPIXEL, session.pixel_endx); + + build_image_pipeline(dev, session); + + /* MAXWD is expressed in 4 words unit */ + // BUG: we shouldn't multiply by channels here + reg->set24(REG_MAXWD, (session.output_line_bytes_raw * session.params.channels >> 2)); + + reg->set16(REG_LPERIOD, exposure_time); + DBG (DBG_io2, "%s: exposure_time used=%d\n", __func__, exposure_time); + + r = sanei_genesys_get_address (reg, 0x34); + r->value = sensor.dummy_pixel; +} + +void CommandSetGl846::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; + + dummy = 3-session.params.channels; + +/* slope_dpi */ +/* cis color scan is effectively a gray scan with 3 gray lines per color + line and a FILTER of 0 */ + if (dev->model->is_cis) { + slope_dpi = session.params.yres * session.params.channels; + } else { + slope_dpi = session.params.yres; + } + + slope_dpi = slope_dpi * (1 + dummy); + + exposure_time = sensor.exposure_lperiod; + const auto& motor_profile = sanei_genesys_get_motor_profile(*gl846_motor_profiles, + dev->model->motor_id, + exposure_time); + + DBG(DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time); + DBG(DBG_info, "%s : scan_step_type=%d\n", __func__, + static_cast<unsigned>(motor_profile.step_type)); + + /* we enable true gray for cis scanners only, and just when doing + * scan since color calibration is OK for this mode + */ + gl846_init_optical_regs_scan(dev, sensor, reg, exposure_time, session); + +/*** motor parameters ***/ + + /* add tl_y to base movement */ + move = session.params.starty; + DBG(DBG_info, "%s: move=%d steps\n", __func__, move); + + MotorFlag mflags = MotorFlag::NONE; + if (has_flag(session.params.flags, ScanFlag::DISABLE_BUFFER_FULL_MOVE)) { + mflags |= MotorFlag::DISABLE_BUFFER_FULL_MOVE; + } + if (has_flag(session.params.flags, ScanFlag::FEEDING)) { + mflags |= MotorFlag::FEED; + } + if (has_flag(session.params.flags, ScanFlag::REVERSE)) { + mflags |= MotorFlag::REVERSE; + } + + gl846_init_motor_regs_scan(dev, sensor, reg, motor_profile, exposure_time, slope_dpi, + dev->model->is_cis ? session.output_line_count * session.params.channels + : session.output_line_count, + dummy, move, mflags); + + /*** prepares data reordering ***/ + + dev->read_buffer.clear(); + dev->read_buffer.alloc(session.buffer_size_read); + + dev->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 CommandSetGl846::calculate_scan_session(const Genesys_Device* dev, + const Genesys_Sensor& sensor, + const Genesys_Settings& settings) const +{ + int start; + + DBG(DBG_info, "%s ", __func__); + debug_dump(DBG_info, settings); + + /* start */ + start = static_cast<int>(dev->model->x_offset); + start += static_cast<int>(settings.tl_x); + start = static_cast<int>((start * sensor.optical_res) / MM_PER_INCH); + + ScanSession session; + session.params.xres = settings.xres; + session.params.yres = settings.yres; + session.params.startx = start; // not used + session.params.starty = 0; // not used + session.params.pixels = settings.pixels; + session.params.requested_pixels = settings.requested_pixels; + session.params.lines = settings.lines; + session.params.depth = settings.depth; + session.params.channels = settings.get_channels(); + session.params.scan_method = settings.scan_method; + session.params.scan_mode = settings.scan_mode; + session.params.color_filter = settings.color_filter; + session.params.flags = ScanFlag::NONE; + + compute_session(dev, session, sensor); + + return session; +} + +// for fast power saving methods only, like disabling certain amplifiers +void CommandSetGl846::save_power(Genesys_Device* dev, bool enable) const +{ + (void) dev; + DBG_HELPER_ARGS(dbg, "enable = %d", enable); +} + +void CommandSetGl846::set_powersaving(Genesys_Device* dev, int delay /* in minutes */) const +{ + (void) dev; + DBG_HELPER_ARGS(dbg, "delay = %d", delay); +} + +// Send the low-level scan command +void CommandSetGl846::begin_scan(Genesys_Device* dev, const Genesys_Sensor& sensor, + Genesys_Register_Set* reg, bool start_motor) const +{ + DBG_HELPER(dbg); + (void) sensor; + uint8_t val; + GenesysRegister *r; + + /* XXX STEF XXX SCAN GPIO */ + /* + val = dev->interface->read_register(REG_0x6C); + dev->interface->write_register(REG_0x6C, val); + */ + + val = REG_0x0D_CLRLNCNT; + dev->interface->write_register(REG_0x0D, val); + val = REG_0x0D_CLRMCNT; + dev->interface->write_register(REG_0x0D, val); + + val = dev->interface->read_register(REG_0x01); + val |= REG_0x01_SCAN; + dev->interface->write_register(REG_0x01, val); + r = sanei_genesys_get_address (reg, REG_0x01); + r->value = val; + + scanner_start_action(*dev, start_motor); + + dev->advance_head_pos_by_session(ScanHeadId::PRIMARY); +} + + +// Send the stop scan command +void CommandSetGl846::end_scan(Genesys_Device* dev, Genesys_Register_Set* reg, + bool check_stop) const +{ + (void) reg; + DBG_HELPER_ARGS(dbg, "check_stop = %d", check_stop); + + if (!dev->model->is_sheetfed) { + scanner_stop_action(*dev); + } +} + +// Moves the slider to the home (top) postion slowly +void CommandSetGl846::move_back_home(Genesys_Device* dev, bool wait_until_home) const +{ + scanner_move_back_home(*dev, wait_until_home); +} + +// Automatically set top-left edge of the scan area by scanning a 200x200 pixels area at 600 dpi +// from very top of scanner +void CommandSetGl846::search_start_position(Genesys_Device* dev) const +{ + DBG_HELPER(dbg); + int size; + Genesys_Register_Set local_reg; + + int pixels = 600; + int dpi = 300; + + local_reg = dev->reg; + + /* sets for a 200 lines * 600 pixels */ + /* normal scan with no shading */ + + // FIXME: the current approach of doing search only for one resolution does not work on scanners + // whith employ different sensors with potentially different settings. + const auto& sensor = sanei_genesys_find_sensor(dev, dpi, 1, dev->model->default_method); + + ScanSession session; + session.params.xres = dpi; + session.params.yres = dpi; + session.params.startx = 0; + session.params.starty = 0; /*we should give a small offset here~60 steps */ + session.params.pixels = 600; + session.params.lines = dev->model->search_lines; + session.params.depth = 8; + session.params.channels = 1; + session.params.scan_method = dev->settings.scan_method; + session.params.scan_mode = ScanColorMode::GRAY; + session.params.color_filter = ColorFilter::GREEN; + session.params.flags = ScanFlag::DISABLE_SHADING | + ScanFlag::DISABLE_GAMMA | + ScanFlag::IGNORE_LINE_DISTANCE; + compute_session(dev, session, sensor); + + init_regs_for_scan_session(dev, sensor, &local_reg, session); + + // send to scanner + dev->interface->write_registers(local_reg); + + size = pixels * dev->model->search_lines; + + std::vector<uint8_t> data(size); + + begin_scan(dev, sensor, &local_reg, true); + + if (is_testing_mode()) { + dev->interface->test_checkpoint("search_start_position"); + end_scan(dev, &local_reg, true); + dev->reg = local_reg; + return; + } + + wait_until_buffer_non_empty(dev); + + // now we're on target, we can read data + sanei_genesys_read_data_from_scanner(dev, data.data(), size); + + if (DBG_LEVEL >= DBG_data) { + sanei_genesys_write_pnm_file("gl846_search_position.pnm", data.data(), 8, 1, pixels, + dev->model->search_lines); + } + + end_scan(dev, &local_reg, true); + + /* update regs to copy ASIC internal state */ + dev->reg = local_reg; + + // TODO: find out where sanei_genesys_search_reference_point stores information, + // and use that correctly + for (auto& sensor_update : + sanei_genesys_find_sensors_all_for_write(dev, dev->model->default_method)) + { + sanei_genesys_search_reference_point(dev, sensor_update, data.data(), 0, dpi, pixels, + dev->model->search_lines); + } +} + +// sets up register for coarse gain calibration +// todo: check it for scanners using it +void CommandSetGl846::init_regs_for_coarse_calibration(Genesys_Device* dev, + const Genesys_Sensor& sensor, + Genesys_Register_Set& regs) const +{ + DBG_HELPER(dbg); + + ScanSession session; + session.params.xres = dev->settings.xres; + session.params.yres = dev->settings.yres; + session.params.startx = 0; + session.params.starty = 0; + session.params.pixels = sensor.optical_res / sensor.ccd_pixels_per_system_pixel(); + session.params.lines = 20; + session.params.depth = 16; + session.params.channels = dev->settings.get_channels(); + session.params.scan_method = dev->settings.scan_method; + session.params.scan_mode = dev->settings.scan_mode; + session.params.color_filter = dev->settings.color_filter; + session.params.flags = ScanFlag::DISABLE_SHADING | + ScanFlag::DISABLE_GAMMA | + ScanFlag::SINGLE_LINE | + ScanFlag::IGNORE_LINE_DISTANCE; + compute_session(dev, session, sensor); + + init_regs_for_scan_session(dev, sensor, ®s, session); + + DBG(DBG_info, "%s: optical sensor res: %d dpi, actual res: %d\n", __func__, + sensor.optical_res / sensor.ccd_pixels_per_system_pixel(), dev->settings.xres); + + dev->interface->write_registers(regs); +} + +// init registers for shading calibration +void CommandSetGl846::init_regs_for_shading(Genesys_Device* dev, const Genesys_Sensor& sensor, + Genesys_Register_Set& regs) const +{ + DBG_HELPER(dbg); + float move; + + dev->calib_channels = 3; + + /* initial calibration reg values */ + regs = dev->reg; + + dev->calib_resolution = sensor.get_register_hwdpi(dev->settings.xres); + + const auto& calib_sensor = sanei_genesys_find_sensor(dev, dev->calib_resolution, + dev->calib_channels, + dev->settings.scan_method); + dev->calib_total_bytes_to_read = 0; + dev->calib_lines = dev->model->shading_lines; + if (dev->calib_resolution==4800) { + dev->calib_lines *= 2; + } + dev->calib_pixels = (calib_sensor.sensor_pixels * dev->calib_resolution) / + calib_sensor.optical_res; + + DBG(DBG_io, "%s: calib_lines = %zu\n", __func__, dev->calib_lines); + DBG(DBG_io, "%s: calib_pixels = %zu\n", __func__, dev->calib_pixels); + + /* this is aworkaround insufficent distance for slope + * motor acceleration TODO special motor slope for shading */ + move=1; + if(dev->calib_resolution<1200) + { + move=40; + } + + ScanSession session; + session.params.xres = dev->calib_resolution; + session.params.yres = dev->calib_resolution; + session.params.startx = 0; + session.params.starty = static_cast<unsigned>(move); + session.params.pixels = dev->calib_pixels; + session.params.lines = dev->calib_lines; + session.params.depth = 16; + session.params.channels = dev->calib_channels; + session.params.scan_method = dev->settings.scan_method; + session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; + session.params.color_filter = dev->settings.color_filter; + session.params.flags = ScanFlag::DISABLE_SHADING | + ScanFlag::DISABLE_GAMMA | + ScanFlag::DISABLE_BUFFER_FULL_MOVE | + ScanFlag::IGNORE_LINE_DISTANCE; + compute_session(dev, session, calib_sensor); + + init_regs_for_scan_session(dev, calib_sensor, ®s, session); + + dev->interface->write_registers(regs); + + /* we use GENESYS_FLAG_SHADING_REPARK */ + dev->set_head_pos_zero(ScanHeadId::PRIMARY); +} + +/** @brief set up registers for the actual scan + */ +void CommandSetGl846::init_regs_for_scan(Genesys_Device* dev, const Genesys_Sensor& sensor) const +{ + DBG_HELPER(dbg); + float move; + int move_dpi; + float start; + + debug_dump(DBG_info, dev->settings); + + /* steps to move to reach scanning area: + - first we move to physical start of scanning + either by a fixed steps amount from the black strip + or by a fixed amount from parking position, + minus the steps done during shading calibration + - then we move by the needed offset whitin physical + scanning area + + assumption: steps are expressed at maximum motor resolution + + we need: + float y_offset; + float y_size; + float y_offset_calib; + mm_to_steps()=motor dpi / 2.54 / 10=motor dpi / MM_PER_INCH */ + + /* if scanner uses GENESYS_FLAG_SEARCH_START y_offset is + relative from origin, else, it is from parking position */ + + move_dpi = dev->motor.base_ydpi; + + move = static_cast<float>(dev->model->y_offset); + move = static_cast<float>(move + dev->settings.tl_y); + move = static_cast<float>((move * move_dpi) / MM_PER_INCH); + move -= dev->head_pos(ScanHeadId::PRIMARY); + DBG(DBG_info, "%s: move=%f steps\n", __func__, move); + + /* fast move to scan area */ + /* we don't move fast the whole distance since it would involve + * computing acceleration/deceleration distance for scan + * resolution. So leave a remainder for it so scan makes the final + * move tuning */ + if (dev->settings.get_channels() * dev->settings.yres >= 600 && move > 700) { + scanner_move(*dev, dev->model->default_method, static_cast<unsigned>(move - 500), + Direction::FORWARD); + move=500; + } + + DBG(DBG_info, "%s: move=%f steps\n", __func__, move); + DBG(DBG_info, "%s: move=%f steps\n", __func__, move); + + /* start */ + start = static_cast<float>(dev->model->x_offset); + start = static_cast<float>(start + dev->settings.tl_x); + start = static_cast<float>((start * sensor.optical_res) / MM_PER_INCH); + + 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; + // backtracking isn't handled well, so don't enable it + session.params.flags = ScanFlag::DISABLE_BUFFER_FULL_MOVE; + compute_session(dev, session, sensor); + + init_regs_for_scan_session(dev, sensor, &dev->reg, session); +} + + +/** + * Send shading calibration data. The buffer is considered to always hold values + * for all the channels. + */ +void CommandSetGl846::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 addr, length, i, x, factor, pixels; + uint32_t dpiset, dpihw; + uint8_t val,*ptr,*src; + + /* shading data is plit in 3 (up to 5 with IR) areas + write(0x10014000,0x00000dd8) + URB 23429 bulk_out len 3544 wrote 0x33 0x10 0x.... + write(0x1003e000,0x00000dd8) + write(0x10068000,0x00000dd8) + */ + length = static_cast<uint32_t>(size / 3); + unsigned strpixel = dev->session.pixel_startx; + unsigned endpixel = dev->session.pixel_endx; + + /* compute deletion factor */ + dpiset = dev->reg.get16(REG_DPISET); + dpihw = sensor.get_register_hwdpi(dpiset); + factor=dpihw/dpiset; + DBG(DBG_io2, "%s: factor=%d\n", __func__, factor); + + pixels=endpixel-strpixel; + + /* since we're using SHDAREA, substract startx coordinate from shading */ + strpixel -= (sensor.ccd_start_xoffset * 600) / sensor.optical_res; + + /* turn pixel value into bytes 2x16 bits words */ + strpixel*=2*2; + pixels*=2*2; + + dev->interface->record_key_value("shading_offset", std::to_string(strpixel)); + dev->interface->record_key_value("shading_pixels", std::to_string(pixels)); + dev->interface->record_key_value("shading_length", std::to_string(length)); + dev->interface->record_key_value("shading_factor", std::to_string(factor)); + + std::vector<uint8_t> buffer(pixels, 0); + + DBG(DBG_io2, "%s: using chunks of %d (0x%04x) bytes\n", __func__, pixels, pixels); + + /* base addr of data has been written in reg D0-D4 in 4K word, so AHB address + * is 8192*reg value */ + + /* write actual color channel data */ + for(i=0;i<3;i++) + { + /* build up actual shading data by copying the part from the full width one + * to the one corresponding to SHDAREA */ + ptr = buffer.data(); + + /* iterate on both sensor segment */ + for(x=0;x<pixels;x+=4*factor) + { + /* coefficient source */ + src=(data+strpixel+i*length)+x; + + /* coefficient copy */ + ptr[0]=src[0]; + ptr[1]=src[1]; + ptr[2]=src[2]; + ptr[3]=src[3]; + + /* next shading coefficient */ + ptr+=4; + } + + val = dev->interface->read_register(0xd0+i); + addr = val * 8192 + 0x10000000; + dev->interface->write_ahb(addr, pixels, buffer.data()); + } +} + +/** @brief calibrates led exposure + * Calibrate exposure by scanning a white area until the used exposure gives + * data white enough. + * @param dev device to calibrate + */ +SensorExposure CommandSetGl846::led_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor, + Genesys_Register_Set& regs) const +{ + DBG_HELPER(dbg); + int num_pixels; + int total_size; + int used_res; + int i, j; + int val; + int channels; + int avg[3], top[3], bottom[3]; + int turn; + uint16_t exp[3]; + + float move = static_cast<float>(dev->model->y_offset_calib_white); + move = static_cast<float>((move * (dev->motor.base_ydpi / 4)) / MM_PER_INCH); + if(move>20) + { + scanner_move(*dev, dev->model->default_method, static_cast<unsigned>(move), + Direction::FORWARD); + } + DBG(DBG_io, "%s: move=%f steps\n", __func__, move); + + /* offset calibration is always done in color mode */ + channels = 3; + used_res = sensor.get_register_hwdpi(dev->settings.xres); + const auto& calib_sensor = sanei_genesys_find_sensor(dev, used_res, channels, + dev->settings.scan_method); + num_pixels = (calib_sensor.sensor_pixels * used_res) / calib_sensor.optical_res; + + /* initial calibration reg values */ + regs = dev->reg; + + ScanSession session; + session.params.xres = used_res; + session.params.yres = used_res; + session.params.startx = 0; + session.params.starty = 0; + session.params.pixels = num_pixels; + session.params.lines = 1; + session.params.depth = 16; + session.params.channels = channels; + session.params.scan_method = dev->settings.scan_method; + session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; + session.params.color_filter = dev->settings.color_filter; + session.params.flags = ScanFlag::DISABLE_SHADING | + ScanFlag::DISABLE_GAMMA | + ScanFlag::SINGLE_LINE | + ScanFlag::IGNORE_LINE_DISTANCE; + compute_session(dev, session, calib_sensor); + + init_regs_for_scan_session(dev, calib_sensor, ®s, session); + + total_size = num_pixels * channels * (session.params.depth / 8) * 1; + std::vector<uint8_t> line(total_size); + + /* initial loop values and boundaries */ + exp[0] = calib_sensor.exposure.red; + exp[1] = calib_sensor.exposure.green; + exp[2] = calib_sensor.exposure.blue; + + bottom[0]=29000; + bottom[1]=29000; + bottom[2]=29000; + + top[0]=41000; + top[1]=51000; + top[2]=51000; + + turn = 0; + + /* no move during led calibration */ + sanei_genesys_set_motor_power(regs, false); + bool acceptable = false; + do + { + // set up exposure + regs.set16(REG_EXPR, exp[0]); + regs.set16(REG_EXPG, exp[1]); + regs.set16(REG_EXPB, exp[2]); + + // write registers and scan data + dev->interface->write_registers(regs); + + DBG(DBG_info, "%s: starting line reading\n", __func__); + begin_scan(dev, calib_sensor, ®s, true); + + if (is_testing_mode()) { + dev->interface->test_checkpoint("led_calibration"); + scanner_stop_action(*dev); + move_back_home(dev, true); + return calib_sensor.exposure; + } + + sanei_genesys_read_data_from_scanner(dev, line.data(), total_size); + + // stop scanning + scanner_stop_action(*dev); + + if (DBG_LEVEL >= DBG_data) + { + char fn[30]; + std::snprintf(fn, 30, "gl846_led_%02d.pnm", turn); + sanei_genesys_write_pnm_file(fn, line.data(), session.params.depth, + channels, num_pixels, 1); + } + + /* compute average */ + for (j = 0; j < channels; j++) + { + avg[j] = 0; + for (i = 0; i < num_pixels; i++) + { + if (dev->model->is_cis) + val = + line[i * 2 + j * 2 * num_pixels + 1] * 256 + + line[i * 2 + j * 2 * num_pixels]; + else + val = + line[i * 2 * channels + 2 * j + 1] * 256 + + line[i * 2 * channels + 2 * j]; + avg[j] += val; + } + + avg[j] /= num_pixels; + } + + DBG(DBG_info, "%s: average: %d,%d,%d\n", __func__, avg[0], avg[1], avg[2]); + + /* check if exposure gives average within the boundaries */ + acceptable = true; + for(i=0;i<3;i++) + { + if(avg[i]<bottom[i]) + { + exp[i]=(exp[i]*bottom[i])/avg[i]; + acceptable = false; + } + if(avg[i]>top[i]) + { + exp[i]=(exp[i]*top[i])/avg[i]; + acceptable = false; + } + } + + turn++; + } + while (!acceptable && turn < 100); + + DBG(DBG_info, "%s: acceptable exposure: %d,%d,%d\n", __func__, exp[0], exp[1], exp[2]); + + // set these values as final ones for scan + dev->reg.set16(REG_EXPR, exp[0]); + dev->reg.set16(REG_EXPG, exp[1]); + dev->reg.set16(REG_EXPB, exp[2]); + + /* go back home */ + if(move>20) + { + move_back_home(dev, true); + } + + return { exp[0], exp[1], exp[2] }; +} + +/** + * set up GPIO/GPOE for idle state + */ +static void gl846_init_gpio(Genesys_Device* dev) +{ + DBG_HELPER(dbg); + int idx=0; + + /* search GPIO profile */ + while (gpios[idx].gpio_id != GpioId::UNKNOWN && dev->model->gpio_id != gpios[idx].gpio_id) { + idx++; + } + if (gpios[idx].gpio_id == GpioId::UNKNOWN) + { + throw SaneException("failed to find GPIO profile for sensor_id=%d", + static_cast<unsigned>(dev->model->sensor_id)); + } + + dev->interface->write_register(REG_0xA7, gpios[idx].ra7); + dev->interface->write_register(REG_0xA6, gpios[idx].ra6); + + dev->interface->write_register(REG_0x6B, gpios[idx].r6b); + dev->interface->write_register(REG_0x6C, gpios[idx].r6c); + dev->interface->write_register(REG_0x6D, gpios[idx].r6d); + dev->interface->write_register(REG_0x6E, gpios[idx].r6e); + dev->interface->write_register(REG_0x6F, gpios[idx].r6f); + + dev->interface->write_register(REG_0xA8, gpios[idx].ra8); + dev->interface->write_register(REG_0xA9, gpios[idx].ra9); +} + +/** + * set memory layout by filling values in dedicated registers + */ +static void gl846_init_memory_layout(Genesys_Device* dev) +{ + DBG_HELPER(dbg); + int idx = 0, i; + uint8_t val; + + /* point to per model memory layout */ + idx = 0; + while (layouts[idx].model != nullptr && strcmp(dev->model->name,layouts[idx].model)!=0) { + if(strcmp(dev->model->name,layouts[idx].model)!=0) + idx++; + } + if (layouts[idx].model == nullptr) { + throw SaneException("failed to find memory layout for model %s", dev->model->name); + } + + /* CLKSET and DRAMSEL */ + val = layouts[idx].dramsel; + dev->interface->write_register(REG_0x0B, val); + dev->reg.find_reg(0x0b).value = val; + + /* prevent further writings by bulk write register */ + dev->reg.remove_reg(0x0b); + + /* setup base address for shading and scanned data. */ + for(i=0;i<10;i++) + { + dev->interface->write_register(0xe0+i, layouts[idx].rx[i]); + } +} + +/* * + * initialize ASIC from power on condition + */ +void CommandSetGl846::asic_boot(Genesys_Device* dev, bool cold) const +{ + DBG_HELPER(dbg); + uint8_t val; + + // reset ASIC if cold boot + if (cold) { + dev->interface->write_register(0x0e, 0x01); + dev->interface->write_register(0x0e, 0x00); + } + + if(dev->usb_mode == 1) + { + val = 0x14; + } + else + { + val = 0x11; + } + dev->interface->write_0x8c(0x0f, val); + + // test CHKVER + val = dev->interface->read_register(REG_0x40); + if (val & REG_0x40_CHKVER) { + val = dev->interface->read_register(0x00); + DBG(DBG_info, "%s: reported version for genesys chip is 0x%02x\n", __func__, val); + } + + /* Set default values for registers */ + gl846_init_registers (dev); + + // Write initial registers + dev->interface->write_registers(dev->reg); + + /* Enable DRAM by setting a rising edge on bit 3 of reg 0x0b */ + val = dev->reg.find_reg(0x0b).value & REG_0x0B_DRAMSEL; + val = (val | REG_0x0B_ENBDRAM); + dev->interface->write_register(REG_0x0B, val); + dev->reg.find_reg(0x0b).value = val; + + /* CIS_LINE */ + if (dev->model->is_cis) + { + dev->reg.init_reg(0x08, REG_0x08_CIS_LINE); + dev->interface->write_register(0x08, dev->reg.find_reg(0x08).value); + } + + // set up clocks + dev->interface->write_0x8c(0x10, 0x0e); + dev->interface->write_0x8c(0x13, 0x0e); + + // setup gpio + gl846_init_gpio(dev); + + // setup internal memory layout + gl846_init_memory_layout(dev); + + dev->reg.init_reg(0xf8, 0x05); + dev->interface->write_register(0xf8, dev->reg.find_reg(0xf8).value); +} + +/** + * initialize backend and ASIC : registers, motor tables, and gamma tables + * then ensure scanner's head is at home + */ +void CommandSetGl846::init(Genesys_Device* dev) const +{ + DBG_INIT (); + DBG_HELPER(dbg); + + sanei_genesys_asic_init(dev, 0); +} + +void CommandSetGl846::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; + uint8_t scan, file, email, copy; + switch(s->dev->model->gpio_id) + { + default: + scan=0x01; + file=0x02; + email=0x04; + copy=0x08; + } + val = s->dev->interface->read_register(REG_0x6D); + + s->buttons[BUTTON_SCAN_SW].write((val & scan) == 0); + s->buttons[BUTTON_FILE_SW].write((val & file) == 0); + s->buttons[BUTTON_EMAIL_SW].write((val & email) == 0); + s->buttons[BUTTON_COPY_SW].write((val & copy) == 0); +} + + +void CommandSetGl846::update_home_sensor_gpio(Genesys_Device& dev) const +{ + DBG_HELPER(dbg); + + std::uint8_t val = dev.interface->read_register(REG_0x6C); + val |= 0x41; + dev.interface->write_register(REG_0x6C, val); +} + +/** @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 CommandSetGl846::search_strip(Genesys_Device* dev, const Genesys_Sensor& sensor, bool forward, + bool black) const +{ + DBG_HELPER_ARGS(dbg, "%s %s", black ? "black" : "white", forward ? "forward" : "reverse"); + unsigned int pixels, lines, channels; + Genesys_Register_Set local_reg; + size_t size; + unsigned int pass, count, found, x, y; + char title[80]; + + set_fe(dev, sensor, AFE_SET); + + scanner_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; + /* 10 MM */ + /* lines = (10 * dpi) / MM_PER_INCH; */ + /* shading calibation is done with dev->motor.base_ydpi */ + lines = (dev->model->shading_lines * dpi) / dev->motor.base_ydpi; + pixels = (sensor.sensor_pixels * dpi) / sensor.optical_res; + + dev->set_head_pos_zero(ScanHeadId::PRIMARY); + + local_reg = dev->reg; + + ScanSession session; + session.params.xres = dpi; + session.params.yres = dpi; + session.params.startx = 0; + session.params.starty = 0; + session.params.pixels = pixels; + session.params.lines = lines; + session.params.depth = 8; + session.params.channels = channels; + session.params.scan_mode = ScanColorMode::GRAY; + session.params.color_filter = ColorFilter::RED; + session.params.flags = ScanFlag::DISABLE_SHADING | + ScanFlag::DISABLE_GAMMA; + if (!forward) { + session.params.flags |= ScanFlag::REVERSE; + } + compute_session(dev, session, sensor); + + init_regs_for_scan_session(dev, sensor, &local_reg, session); + + size = pixels * channels * lines * (session.params.depth / 8); + std::vector<uint8_t> data(size); + + dev->interface->write_registers(local_reg); + + begin_scan(dev, sensor, &local_reg, true); + + if (is_testing_mode()) { + dev->interface->test_checkpoint("search_strip"); + scanner_stop_action(*dev); + return; + } + + wait_until_buffer_non_empty(dev); + + // now we're on target, we can read data + sanei_genesys_read_data_from_scanner(dev, data.data(), size); + + scanner_stop_action(*dev); + + pass = 0; + if (DBG_LEVEL >= DBG_data) + { + std::sprintf(title, "gl846_search_strip_%s_%s%02d.pnm", + black ? "black" : "white", forward ? "fwd" : "bwd", pass); + sanei_genesys_write_pnm_file(title, data.data(), session.params.depth, + channels, pixels, lines); + } + + /* loop until strip is found or maximum pass number done */ + found = 0; + while (pass < 20 && !found) + { + dev->interface->write_registers(local_reg); + + // now start scan + begin_scan(dev, sensor, &local_reg, true); + + wait_until_buffer_non_empty(dev); + + // now we're on target, we can read data + sanei_genesys_read_data_from_scanner(dev, data.data(), size); + + scanner_stop_action(*dev); + + if (DBG_LEVEL >= DBG_data) + { + std::sprintf(title, "gl846_search_strip_%s_%s%02d.pnm", + black ? "black" : "white", forward ? "fwd" : "bwd", pass); + sanei_genesys_write_pnm_file(title, data.data(), session.params.depth, + channels, pixels, lines); + } + + /* search data to find black strip */ + /* when searching forward, we only need one line of the searched color since we + * will scan forward. But when doing backward search, we need all the area of the + * same color */ + if (forward) + { + for (y = 0; y < lines && !found; y++) + { + count = 0; + /* count of white/black pixels depending on the color searched */ + for (x = 0; x < pixels; x++) + { + /* when searching for black, detect white pixels */ + if (black && data[y * pixels + x] > 90) + { + count++; + } + /* when searching for white, detect black pixels */ + if (!black && data[y * pixels + x] < 60) + { + count++; + } + } + + /* at end of line, if count >= 3%, line is not fully of the desired color + * so we must go to next line of the buffer */ + /* count*100/pixels < 3 */ + if ((count * 100) / pixels < 3) + { + found = 1; + DBG(DBG_data, "%s: strip found forward during pass %d at line %d\n", __func__, + pass, y); + } + else + { + DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count, + (100 * count) / pixels); + } + } + } + else /* since calibration scans are done forward, we need the whole area + to be of the required color when searching backward */ + { + count = 0; + for (y = 0; y < lines; y++) + { + /* count of white/black pixels depending on the color searched */ + for (x = 0; x < pixels; x++) + { + /* when searching for black, detect white pixels */ + if (black && data[y * pixels + x] > 90) + { + count++; + } + /* when searching for white, detect black pixels */ + if (!black && data[y * pixels + x] < 60) + { + count++; + } + } + } + + /* at end of area, if count >= 3%, area is not fully of the desired color + * so we must go to next buffer */ + if ((count * 100) / (pixels * lines) < 3) + { + found = 1; + DBG(DBG_data, "%s: strip found backward during pass %d \n", __func__, pass); + } + else + { + DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count, + (100 * count) / pixels); + } + } + pass++; + } + + if (found) + { + DBG(DBG_info, "%s: %s strip found\n", __func__, black ? "black" : "white"); + } + else + { + throw SaneException(SANE_STATUS_UNSUPPORTED, "%s strip not found", black ? "black" : "white"); + } +} + +/** + * average dark pixels of a 8 bits scan + */ +static int +dark_average (uint8_t * data, unsigned int pixels, unsigned int lines, + unsigned int channels, unsigned int black) +{ + unsigned int i, j, k, average, count; + unsigned int avg[3]; + uint8_t val; + + /* computes average value on black margin */ + for (k = 0; k < channels; k++) + { + avg[k] = 0; + count = 0; + for (i = 0; i < lines; i++) + { + for (j = 0; j < black; j++) + { + val = data[i * channels * pixels + j + k]; + avg[k] += val; + count++; + } + } + if (count) + avg[k] /= count; + DBG(DBG_info, "%s: avg[%d] = %d\n", __func__, k, avg[k]); + } + average = 0; + for (i = 0; i < channels; i++) + average += avg[i]; + average /= channels; + DBG(DBG_info, "%s: average = %d\n", __func__, average); + return average; +} + +void CommandSetGl846::offset_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor, + Genesys_Register_Set& regs) const +{ + DBG_HELPER(dbg); + unsigned channels; + int pass = 0, avg, total_size; + int topavg, bottomavg, lines; + int top, bottom, black_pixels, pixels; + + // no gain nor offset for AKM AFE + uint8_t reg04 = dev->interface->read_register(REG_0x04); + if ((reg04 & REG_0x04_FESET) == 0x02) { + return; + } + + /* offset calibration is always done in color mode */ + channels = 3; + dev->calib_pixels = sensor.sensor_pixels; + lines=1; + pixels = (sensor.sensor_pixels * sensor.optical_res) / sensor.optical_res; + black_pixels = (sensor.black_pixels * sensor.optical_res) / sensor.optical_res; + DBG(DBG_io2, "%s: black_pixels=%d\n", __func__, black_pixels); + + ScanSession session; + session.params.xres = sensor.optical_res; + session.params.yres = sensor.optical_res; + session.params.startx = 0; + session.params.starty = 0; + session.params.pixels = pixels; + session.params.lines = lines; + session.params.depth = 8; + session.params.channels = channels; + session.params.scan_method = dev->settings.scan_method; + session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; + session.params.color_filter = dev->settings.color_filter; + session.params.flags = ScanFlag::DISABLE_SHADING | + ScanFlag::DISABLE_GAMMA | + ScanFlag::SINGLE_LINE | + ScanFlag::IGNORE_LINE_DISTANCE; + compute_session(dev, session, sensor); + + init_regs_for_scan_session(dev, sensor, ®s, session); + + sanei_genesys_set_motor_power(regs, false); + + total_size = pixels * channels * lines * (session.params.depth / 8); + + std::vector<uint8_t> first_line(total_size); + std::vector<uint8_t> second_line(total_size); + + /* init gain */ + dev->frontend.set_gain(0, 0); + dev->frontend.set_gain(1, 0); + dev->frontend.set_gain(2, 0); + + /* scan with no move */ + bottom = 10; + dev->frontend.set_offset(0, bottom); + dev->frontend.set_offset(1, bottom); + dev->frontend.set_offset(2, bottom); + + set_fe(dev, sensor, AFE_SET); + dev->interface->write_registers(regs); + DBG(DBG_info, "%s: starting first line reading\n", __func__); + begin_scan(dev, sensor, ®s, true); + + if (is_testing_mode()) { + dev->interface->test_checkpoint("offset_calibration"); + return; + } + + sanei_genesys_read_data_from_scanner(dev, first_line.data(), total_size); + if (DBG_LEVEL >= DBG_data) + { + char fn[30]; + std::snprintf(fn, 30, "gl846_offset%03d.pnm", bottom); + sanei_genesys_write_pnm_file(fn, first_line.data(), session.params.depth, + channels, pixels, lines); + } + + bottomavg = dark_average(first_line.data(), pixels, lines, channels, black_pixels); + DBG(DBG_io2, "%s: bottom avg=%d\n", __func__, bottomavg); + + /* now top value */ + top = 255; + dev->frontend.set_offset(0, top); + dev->frontend.set_offset(1, top); + dev->frontend.set_offset(2, top); + set_fe(dev, sensor, AFE_SET); + dev->interface->write_registers(regs); + DBG(DBG_info, "%s: starting second line reading\n", __func__); + begin_scan(dev, sensor, ®s, true); + sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size); + + topavg = dark_average(second_line.data(), pixels, lines, channels, black_pixels); + DBG(DBG_io2, "%s: top avg=%d\n", __func__, topavg); + + /* loop until acceptable level */ + while ((pass < 32) && (top - bottom > 1)) + { + pass++; + + /* settings for new scan */ + dev->frontend.set_offset(0, (top + bottom) / 2); + dev->frontend.set_offset(1, (top + bottom) / 2); + dev->frontend.set_offset(2, (top + bottom) / 2); + + // scan with no move + set_fe(dev, sensor, AFE_SET); + dev->interface->write_registers(regs); + DBG(DBG_info, "%s: starting second line reading\n", __func__); + begin_scan(dev, sensor, ®s, true); + sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size); + + if (DBG_LEVEL >= DBG_data) + { + char fn[30]; + std::snprintf(fn, 30, "gl846_offset%03d.pnm", dev->frontend.get_offset(1)); + sanei_genesys_write_pnm_file(fn, second_line.data(), session.params.depth, + channels, pixels, lines); + } + + avg = dark_average(second_line.data(), pixels, lines, channels, black_pixels); + DBG(DBG_info, "%s: avg=%d offset=%d\n", __func__, avg, dev->frontend.get_offset(1)); + + /* compute new boundaries */ + if (topavg == avg) + { + topavg = avg; + top = dev->frontend.get_offset(1); + } + else + { + bottomavg = avg; + bottom = dev->frontend.get_offset(1); + } + } + DBG(DBG_info, "%s: offset=(%d,%d,%d)\n", __func__, + dev->frontend.get_offset(0), + dev->frontend.get_offset(1), + dev->frontend.get_offset(2)); +} + +void CommandSetGl846::coarse_gain_calibration(Genesys_Device* dev, const Genesys_Sensor& sensor, + Genesys_Register_Set& regs, int dpi) const +{ + DBG_HELPER(dbg); + int pixels; + int total_size; + int i, j, channels; + int max[3]; + float gain[3],coeff; + int val, code, lines; + + DBG(DBG_proc, "%s: dpi = %d\n", __func__, dpi); + + // no gain nor offset for AKM AFE + uint8_t reg04 = dev->interface->read_register(REG_0x04); + if ((reg04 & REG_0x04_FESET) == 0x02) { + return; + } + + /* coarse gain calibration is always done in color mode */ + channels = 3; + + /* follow CKSEL */ + if(dev->settings.xres<sensor.optical_res) + { + coeff = 0.9f; + } + else + { + coeff=1.0; + } + lines=10; + pixels = (sensor.sensor_pixels * sensor.optical_res) / sensor.optical_res; + + ScanSession session; + session.params.xres = sensor.optical_res; + session.params.yres = sensor.optical_res; + session.params.startx = 0; + session.params.starty = 0; + session.params.pixels = pixels; + session.params.lines = lines; + session.params.depth = 8; + session.params.channels = channels; + session.params.scan_method = dev->settings.scan_method; + session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; + session.params.color_filter = dev->settings.color_filter; + session.params.flags = ScanFlag::DISABLE_SHADING | + ScanFlag::DISABLE_GAMMA | + ScanFlag::SINGLE_LINE | + ScanFlag::IGNORE_LINE_DISTANCE; + compute_session(dev, session, sensor); + + try { + init_regs_for_scan_session(dev, sensor, ®s, session); + } catch (...) { + catch_all_exceptions(__func__, [&](){ sanei_genesys_set_motor_power(regs, false); }); + throw; + } + + sanei_genesys_set_motor_power(regs, false); + + dev->interface->write_registers(regs); + + total_size = pixels * channels * (16 / session.params.depth) * lines; + + std::vector<uint8_t> line(total_size); + + set_fe(dev, sensor, AFE_SET); + begin_scan(dev, sensor, ®s, true); + + if (is_testing_mode()) { + dev->interface->test_checkpoint("coarse_gain_calibration"); + scanner_stop_action(*dev); + move_back_home(dev, true); + return; + } + + sanei_genesys_read_data_from_scanner(dev, line.data(), total_size); + + if (DBG_LEVEL >= DBG_data) { + sanei_genesys_write_pnm_file("gl846_gain.pnm", line.data(), session.params.depth, + channels, pixels, lines); + } + + /* average value on each channel */ + for (j = 0; j < channels; j++) + { + max[j] = 0; + for (i = pixels/4; i < (pixels*3/4); i++) + { + if (dev->model->is_cis) + val = line[i + j * pixels]; + else + val = line[i * channels + j]; + + max[j] += val; + } + max[j] = max[j] / (pixels/2); + + gain[j] = (static_cast<float>(sensor.gain_white_ref) * coeff) / max[j]; + + /* turn logical gain value into gain code, checking for overflow */ + code = static_cast<int>(283 - 208 / gain[j]); + if (code > 255) + code = 255; + else if (code < 0) + code = 0; + dev->frontend.set_gain(j, code); + + DBG(DBG_proc, "%s: channel %d, max=%d, gain = %f, setting:%d\n", __func__, j, max[j], gain[j], + dev->frontend.get_gain(j)); + } + + if (dev->model->is_cis) { + uint8_t gain0 = dev->frontend.get_gain(0); + if (gain0 > dev->frontend.get_gain(1)) { + gain0 = dev->frontend.get_gain(1); + } + if (gain0 > dev->frontend.get_gain(2)) { + gain0 = dev->frontend.get_gain(2); + } + dev->frontend.set_gain(0, gain0); + dev->frontend.set_gain(1, gain0); + dev->frontend.set_gain(2, gain0); + } + + scanner_stop_action(*dev); + + move_back_home(dev, true); +} + +bool CommandSetGl846::needs_home_before_init_regs_for_scan(Genesys_Device* dev) const +{ + (void) dev; + return false; +} + +void CommandSetGl846::init_regs_for_warmup(Genesys_Device* dev, const Genesys_Sensor& sensor, + Genesys_Register_Set* regs, int* channels, + int* total_size) const +{ + (void) dev; + (void) sensor; + (void) regs; + (void) channels; + (void) total_size; + throw SaneException("not implemented"); +} + +void CommandSetGl846::send_gamma_table(Genesys_Device* dev, const Genesys_Sensor& sensor) const +{ + sanei_genesys_send_gamma_table(dev, sensor); +} + +void CommandSetGl846::wait_for_motor_stop(Genesys_Device* dev) const +{ + (void) dev; +} + +void CommandSetGl846::load_document(Genesys_Device* dev) const +{ + (void) dev; + throw SaneException("not implemented"); +} + +void CommandSetGl846::detect_document_end(Genesys_Device* dev) const +{ + (void) dev; + throw SaneException("not implemented"); +} + +void CommandSetGl846::eject_document(Genesys_Device* dev) const +{ + (void) dev; + throw SaneException("not implemented"); +} + +void CommandSetGl846::move_to_ta(Genesys_Device* dev) const +{ + (void) dev; + throw SaneException("not implemented"); +} + +std::unique_ptr<CommandSet> create_gl846_cmd_set() +{ + return std::unique_ptr<CommandSet>(new CommandSetGl846{}); +} + +} // namespace gl846 +} // namespace genesys |