diff options
| author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2020-02-02 17:14:32 +0100 |
|---|---|---|
| committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2020-02-02 17:14:32 +0100 |
| commit | 5dadc28ea784db1ba1f56c2ea8618d2db67af1c8 (patch) | |
| tree | 808b2499b54563b3290f34d70d159b1024310873 /backend/genesys_gl847.cc | |
| parent | 5bb4cf12855ec0151de15d6c5a2354ff08766957 (diff) | |
| parent | 3dade5db2a37543f19f0967901d8d80a52a1e459 (diff) | |
Merge branch 'feature/upstream' into develop
Diffstat (limited to 'backend/genesys_gl847.cc')
| -rw-r--r-- | backend/genesys_gl847.cc | 3517 |
1 files changed, 0 insertions, 3517 deletions
diff --git a/backend/genesys_gl847.cc b/backend/genesys_gl847.cc deleted file mode 100644 index b5748a5..0000000 --- a/backend/genesys_gl847.cc +++ /dev/null @@ -1,3517 +0,0 @@ -/* sane - Scanner Access Now Easy. - - Copyright (C) 2010-2013 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. -*/ - -#define DEBUG_DECLARE_ONLY - -#include "genesys_gl847.h" - -#include <vector> - -/**************************************************************************** - Mid level functions - ****************************************************************************/ - -static SANE_Bool -gl847_get_fast_feed_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG02); - if (r && (r->value & REG02_FASTFED)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl847_get_filter_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG04); - if (r && (r->value & REG04_FILTER)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl847_get_lineart_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG04); - if (r && (r->value & REG04_LINEART)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl847_get_bitset_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG04); - if (r && (r->value & REG04_BITSET)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl847_get_gain4_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, 0x06); - if (r && (r->value & REG06_GAIN4)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl847_test_buffer_empty_bit (SANE_Byte val) -{ - if (val & REG41_BUFEMPTY) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl847_test_motor_flag_bit (SANE_Byte val) -{ - if (val & REG41_MOTORENB) - return SANE_TRUE; - return SANE_FALSE; -} - -/** - * compute the step multiplier used - */ -static int -gl847_get_step_multiplier (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - int value = 1; - - r = sanei_genesys_get_address (regs, 0x9d); - if (r != NULL) - { - value = (r->value & 0x0f)>>1; - value = 1 << value; - } - DBG (DBG_io, "%s: step multiplier is %d\n", __func__, value); - return value; -} - -/** @brief sensor profile - * search for the database of motor profiles and get the best one. Each - * profile is at a specific dpihw. Use LiDE 110 table by default. - * @param sensor_type sensor id - * @param dpi hardware dpi for the scan - * @return a pointer to a Sensor_Profile struct - */ -static Sensor_Profile *get_sensor_profile(int sensor_type, int dpi) -{ - unsigned int i; - int idx; - - i=0; - idx=-1; - while(i<sizeof(sensors)/sizeof(Sensor_Profile)) - { - /* exact match */ - if(sensors[i].sensor_type==sensor_type && sensors[i].dpi==dpi) - { - return &(sensors[i]); - } - - /* closest match */ - if(sensors[i].sensor_type==sensor_type) - { - if(idx<0) - { - idx=i; - } - else - { - if(sensors[i].dpi>=dpi - && sensors[i].dpi<sensors[idx].dpi) - { - idx=i; - } - } - } - i++; - } - - /* default fallback */ - if(idx<0) - { - DBG (DBG_warn,"%s: using default sensor profile\n",__func__); - idx=0; - } - - return &(sensors[idx]); -} - -/**@brief compute exposure to use - * compute the sensor exposure based on target resolution - */ -static int gl847_compute_exposure(Genesys_Device *dev, int xres) -{ - Sensor_Profile* sensor_profile=get_sensor_profile(dev->model->ccd_type, xres); - return sensor_profile->exposure; -} - - -/** @brief sensor specific settings -*/ -static void gl847_setup_sensor(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set * regs, int dpi) -{ - GenesysRegister *r; - int dpihw; - uint16_t exp; - - DBGSTART; - dpihw=sanei_genesys_compute_dpihw(dev, sensor, dpi); - - for (uint16_t addr = 0x16; addr < 0x1e; addr++) { - regs->set8(addr, sensor.custom_regs.get_value(addr)); - } - - for (uint16_t addr = 0x52; addr < 0x52 + 9; addr++) { - regs->set8(addr, sensor.custom_regs.get_value(addr)); - } - - /* set EXPDUMMY and CKxMAP */ - dpihw=sanei_genesys_compute_dpihw(dev, sensor, dpi); - Sensor_Profile* sensor_profile=get_sensor_profile(dev->model->ccd_type, dpihw); - - sanei_genesys_set_reg_from_set(regs,REG_EXPDMY,(uint8_t)((sensor_profile->expdummy) & 0xff)); - - /* if no calibration has been done, set default values for exposures */ - exp = sensor.exposure.red; - if(exp==0) - { - exp=sensor_profile->expr; - } - sanei_genesys_set_double(regs,REG_EXPR,exp); - - exp = sensor.exposure.green; - if(exp==0) - { - exp=sensor_profile->expg; - } - sanei_genesys_set_double(regs,REG_EXPG,exp); - - exp = sensor.exposure.blue; - if(exp==0) - { - exp=sensor_profile->expb; - } - sanei_genesys_set_double(regs,REG_EXPB,exp); - - sanei_genesys_set_triple(regs,REG_CK1MAP,sensor_profile->ck1map); - sanei_genesys_set_triple(regs,REG_CK3MAP,sensor_profile->ck3map); - sanei_genesys_set_triple(regs,REG_CK4MAP,sensor_profile->ck4map); - - /* order of the sub-segments */ - dev->order=sensor_profile->order; - - r = sanei_genesys_get_address (regs, 0x17); - r->value = sensor_profile->r17; - - DBGCOMPLETED; -} - - -/** @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 -gl847_init_registers (Genesys_Device * dev) -{ - int lide700=0; - uint8_t val; - - DBGSTART; - /* 700F class needs some different initial settings */ - if (dev->model->model_id == MODEL_CANON_LIDE_700F) - { - lide700 = 1; - } - - dev->reg.clear(); - - SETREG (0x01, 0x82); - SETREG (0x02, 0x18); - SETREG (0x03, 0x50); - SETREG (0x04, 0x12); - SETREG (0x05, 0x80); - SETREG (0x06, 0x50); /* FASTMODE + POWERBIT */ - SETREG (0x08, 0x10); - SETREG (0x09, 0x01); - SETREG (0x0a, 0x00); - SETREG (0x0b, 0x01); - SETREG (0x0c, 0x02); - - /* LED exposures */ - SETREG (0x10, 0x00); - SETREG (0x11, 0x00); - SETREG (0x12, 0x00); - SETREG (0x13, 0x00); - SETREG (0x14, 0x00); - SETREG (0x15, 0x00); - - SETREG (0x16, 0x10); - SETREG (0x17, 0x08); - SETREG (0x18, 0x00); - - /* EXPDMY */ - SETREG (0x19, 0x50); - - SETREG (0x1a, 0x34); - SETREG (0x1b, 0x00); - SETREG (0x1c, 0x02); - SETREG (0x1d, 0x04); - SETREG (0x1e, 0x10); - SETREG (0x1f, 0x04); - SETREG (0x20, 0x02); - SETREG (0x21, 0x10); - SETREG (0x22, 0x7f); - SETREG (0x23, 0x7f); - SETREG (0x24, 0x10); - SETREG (0x25, 0x00); - SETREG (0x26, 0x00); - SETREG (0x27, 0x00); - SETREG (0x2c, 0x09); - SETREG (0x2d, 0x60); - SETREG (0x2e, 0x80); - SETREG (0x2f, 0x80); - SETREG (0x30, 0x00); - SETREG (0x31, 0x10); - SETREG (0x32, 0x15); - SETREG (0x33, 0x0e); - SETREG (0x34, 0x40); - SETREG (0x35, 0x00); - SETREG (0x36, 0x2a); - SETREG (0x37, 0x30); - SETREG (0x38, 0x2a); - SETREG (0x39, 0xf8); - SETREG (0x3d, 0x00); - SETREG (0x3e, 0x00); - SETREG (0x3f, 0x00); - SETREG (0x52, 0x03); - SETREG (0x53, 0x07); - SETREG (0x54, 0x00); - SETREG (0x55, 0x00); - SETREG (0x56, 0x00); - SETREG (0x57, 0x00); - SETREG (0x58, 0x2a); - SETREG (0x59, 0xe1); - SETREG (0x5a, 0x55); - SETREG (0x5e, 0x41); - SETREG (0x5f, 0x40); - SETREG (0x60, 0x00); - SETREG (0x61, 0x21); - SETREG (0x62, 0x40); - SETREG (0x63, 0x00); - SETREG (0x64, 0x21); - SETREG (0x65, 0x40); - SETREG (0x67, 0x80); - SETREG (0x68, 0x80); - SETREG (0x69, 0x20); - SETREG (0x6a, 0x20); - - /* CK1MAP */ - SETREG (0x74, 0x00); - SETREG (0x75, 0x00); - SETREG (0x76, 0x3c); - - /* CK3MAP */ - SETREG (0x77, 0x00); - SETREG (0x78, 0x00); - SETREG (0x79, 0x9f); - - /* CK4MAP */ - SETREG (0x7a, 0x00); - SETREG (0x7b, 0x00); - SETREG (0x7c, 0x55); - - SETREG (0x7d, 0x00); - - /* NOTE: autoconf is a non working option */ - SETREG (0x87, 0x02); - SETREG (0x9d, 0x06); - SETREG (0xa2, 0x0f); - SETREG (0xbd, 0x18); - SETREG (0xfe, 0x08); - - /* gamma[0] and gamma[256] values */ - SETREG (0xbe, 0x00); - SETREG (0xc5, 0x00); - SETREG (0xc6, 0x00); - SETREG (0xc7, 0x00); - SETREG (0xc8, 0x00); - SETREG (0xc9, 0x00); - SETREG (0xca, 0x00); - - /* LiDE 700 fixups */ - if(lide700) - { - SETREG (0x5f, 0x04); - SETREG (0x7d, 0x80); - - /* we write to these registers only once */ - val=0; - sanei_genesys_write_register (dev, REG7E, val); - sanei_genesys_write_register (dev, REG9E, val); - sanei_genesys_write_register (dev, REG9F, val); - sanei_genesys_write_register (dev, REGAB, val); - } - - /* fine tune upon device description */ - dev->reg.find_reg(0x05).value &= ~REG05_DPIHW; - switch (sanei_genesys_find_sensor_any(dev).optical_res) - { - case 600: - dev->reg.find_reg(0x05).value |= REG05_DPIHW_600; - break; - case 1200: - dev->reg.find_reg(0x05).value |= REG05_DPIHW_1200; - break; - case 2400: - dev->reg.find_reg(0x05).value |= REG05_DPIHW_2400; - break; - case 4800: - dev->reg.find_reg(0x05).value |= REG05_DPIHW_4800; - break; - } - - /* initalize calibration reg */ - dev->calib_reg = dev->reg; - - DBGCOMPLETED; -} - -/**@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 SANE_Status -gl847_send_slope_table (Genesys_Device * dev, int table_nr, - uint16_t * slope_table, int steps) -{ - SANE_Status status = SANE_STATUS_GOOD; - int i; - char msg[10000]; - - DBG (DBG_proc, "%s (table_nr = %d, steps = %d)\n", __func__, - table_nr, steps); - - /* sanity check */ - if(table_nr<0 || table_nr>4) - { - DBG (DBG_error, "%s: invalid table number %d!\n", __func__, table_nr); - return SANE_STATUS_INVAL; - } - - 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) - { - sprintf (msg, "write slope %d (%d)=", table_nr, steps); - for (i = 0; i < steps; i++) - { - sprintf (msg+strlen(msg), "%d", slope_table[i]); - } - DBG (DBG_io, "%s: %s\n", __func__, msg); - } - - /* slope table addresses are fixed */ - status = sanei_genesys_write_ahb(dev, 0x10000000 + 0x4000 * table_nr, steps * 2, table.data()); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: write to AHB failed writing slope table %d (%s)\n", __func__, table_nr, - sane_strstatus(status)); - } - - DBGCOMPLETED; - return status; -} - -/** - * Set register values of Analog Device type frontend - * */ -static SANE_Status -gl847_set_ad_fe (Genesys_Device * dev, uint8_t set) -{ - SANE_Status status = SANE_STATUS_GOOD; - int i; - uint8_t val8; - - DBGSTART; - - /* wait for FE to be ready */ - status = sanei_genesys_get_status (dev, &val8); - while (val8 & REG41_FEBUSY) - { - sanei_genesys_sleep_ms(10); - status = sanei_genesys_get_status (dev, &val8); - }; - - if (set == AFE_INIT) - { - DBG(DBG_proc, "%s(): setting DAC %u\n", __func__, dev->model->dac_type); - - dev->frontend = dev->frontend_initial; - } - - /* reset DAC */ - status = sanei_genesys_fe_write_data (dev, 0x00, 0x80); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to write reg0: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* write them to analog frontend */ - status = sanei_genesys_fe_write_data(dev, 0x00, dev->frontend.regs.get_value(0x00)); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to write reg0: %s\n", __func__, sane_strstatus(status)); - return status; - } - status = sanei_genesys_fe_write_data(dev, 0x01, dev->frontend.regs.get_value(0x01)); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to write reg1: %s\n", __func__, sane_strstatus(status)); - return status; - } - - for (i = 0; i < 3; i++) - { - status = sanei_genesys_fe_write_data(dev, 0x02 + i, dev->frontend.get_gain(i)); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to write gain %d: %s\n", __func__, i, sane_strstatus(status)); - return status; - } - } - for (i = 0; i < 3; i++) - { - status = sanei_genesys_fe_write_data(dev, 0x05 + i, dev->frontend.get_offset(i)); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to write offset %d: %s\n", __func__, i, - sane_strstatus(status)); - return status; - } - } - - DBGCOMPLETED; - return status; -} - -static SANE_Status -gl847_homsnr_gpio(Genesys_Device *dev) -{ -uint8_t val; -SANE_Status status=SANE_STATUS_GOOD; - - if (dev->model->gpo_type == GPO_CANONLIDE700) - { - RIE (sanei_genesys_read_register (dev, REG6C, &val)); - val &= ~REG6C_GPIO10; - RIE (sanei_genesys_write_register (dev, REG6C, val)); - } - else - { - RIE (sanei_genesys_read_register (dev, REG6C, &val)); - val |= REG6C_GPIO10; - RIE (sanei_genesys_write_register (dev, REG6C, val)); - } - return status; -} - -/* Set values of analog frontend */ -static SANE_Status -gl847_set_fe(Genesys_Device * dev, const Genesys_Sensor& sensor, uint8_t set) -{ - (void) sensor; - - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - - DBG(DBG_proc, "%s (%s)\n", __func__, set == AFE_INIT ? "init" : set == AFE_SET ? "set" : set == - AFE_POWER_SAVE ? "powersave" : "huh?"); - - RIE (sanei_genesys_read_register (dev, REG04, &val)); - - /* route to AD devices */ - if ((val & REG04_FESET) == 0x02) - { - return gl847_set_ad_fe (dev, set); - } - - /* for now there is no support yet for wolfson fe */ - DBG(DBG_proc, "%s(): unsupported frontend type %d\n", __func__, - dev->reg.find_reg(0x04).value & REG04_FESET); - - DBGCOMPLETED; - return SANE_STATUS_UNSUPPORTED; -} - - -/** @brief set up motor related register for scan - */ -static SANE_Status -gl847_init_motor_regs_scan (Genesys_Device * dev, - const Genesys_Sensor& sensor, - Genesys_Register_Set * reg, - unsigned int scan_exposure_time, - float scan_yres, - int scan_step_type, - unsigned int scan_lines, - unsigned int scan_dummy, - unsigned int feed_steps, - int scan_power_mode, - unsigned int flags) -{ - SANE_Status status = SANE_STATUS_GOOD; - int use_fast_fed; - unsigned int fast_dpi; - uint16_t scan_table[SLOPE_TABLE_SIZE]; - uint16_t fast_table[SLOPE_TABLE_SIZE]; - int scan_steps, fast_steps, factor; - unsigned int feedl, dist; - GenesysRegister *r; - uint32_t z1, z2; - unsigned int min_restep = 0x20; - uint8_t val, effective; - int fast_step_type; - unsigned int ccdlmt,tgtime; - - DBGSTART; - DBG(DBG_proc, "%s : scan_exposure_time=%d, can_yres=%g, scan_step_type=%d, scan_lines=%d, " - "scan_dummy=%d, feed_steps=%d, scan_power_mode=%d, flags=%x\n", __func__, scan_exposure_time, - scan_yres, scan_step_type, scan_lines, scan_dummy, feed_steps, scan_power_mode, flags); - - /* get step multiplier */ - factor = gl847_get_step_multiplier (reg); - - use_fast_fed=0; - /* no fast fed since feed works well */ - if(dev->settings.yres==4444 && feed_steps>100 - && ((flags & MOTOR_FLAG_FEED)==0)) - { - use_fast_fed=1; - } - DBG(DBG_io, "%s: use_fast_fed=%d\n", __func__, use_fast_fed); - - sanei_genesys_set_triple(reg, REG_LINCNT, scan_lines); - DBG(DBG_io, "%s: lincnt=%d\n", __func__, scan_lines); - - /* compute register 02 value */ - r = sanei_genesys_get_address (reg, REG02); - r->value = 0x00; - sanei_genesys_set_motor_power(*reg, true); - - if (use_fast_fed) - r->value |= REG02_FASTFED; - else - r->value &= ~REG02_FASTFED; - - if (flags & MOTOR_FLAG_AUTO_GO_HOME) - r->value |= REG02_AGOHOME | REG02_NOTHOME; - - if ((flags & MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE) - ||(scan_yres>=sensor.optical_res)) - { - r->value |= REG02_ACDCDIS; - } - - /* scan and backtracking slope table */ - sanei_genesys_slope_table(scan_table, - &scan_steps, - scan_yres, - scan_exposure_time, - dev->motor.base_ydpi, - scan_step_type, - factor, - dev->model->motor_type, - gl847_motors); - RIE(gl847_send_slope_table (dev, SCAN_TABLE, scan_table, scan_steps*factor)); - RIE(gl847_send_slope_table (dev, BACKTRACK_TABLE, scan_table, scan_steps*factor)); - - /* fast table */ - fast_dpi=sanei_genesys_get_lowest_ydpi(dev); - fast_step_type=scan_step_type; - if(scan_step_type>=2) - { - fast_step_type=2; - } - - sanei_genesys_slope_table(fast_table, - &fast_steps, - fast_dpi, - scan_exposure_time, - dev->motor.base_ydpi, - fast_step_type, - factor, - dev->model->motor_type, - gl847_motors); - - /* manual override of high start value */ - fast_table[0]=fast_table[1]; - - RIE(gl847_send_slope_table (dev, STOP_TABLE, fast_table, fast_steps*factor)); - RIE(gl847_send_slope_table (dev, FAST_TABLE, fast_table, fast_steps*factor)); - RIE(gl847_send_slope_table (dev, HOME_TABLE, fast_table, fast_steps*factor)); - - /* correct move distance by acceleration and deceleration amounts */ - feedl=feed_steps; - if (use_fast_fed) - { - feedl<<=fast_step_type; - dist=(scan_steps+2*fast_steps)*factor; - /* TODO read and decode REGAB */ - 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<<=scan_step_type; - dist=scan_steps*factor; - if (flags & MOTOR_FLAG_FEED) - dist *=2; - } - DBG(DBG_io2, "%s: scan steps=%d\n", __func__, scan_steps); - DBG(DBG_io2, "%s: acceleration distance=%d\n", __func__, dist); - - /* check for overflow */ - if(dist<feedl) - feedl -= dist; - else - feedl = 0; - - sanei_genesys_set_triple(reg,REG_FEEDL,feedl); - DBG(DBG_io ,"%s: feedl=%d\n", __func__, feedl); - - r = sanei_genesys_get_address (reg, REG0C); - ccdlmt=(r->value & REG0C_CCDLMT)+1; - - r = sanei_genesys_get_address (reg, REG1C); - tgtime=1<<(r->value & REG1C_TGTIME); - - /* hi res motor speed GPIO */ - RIE (sanei_genesys_read_register (dev, REG6C, &effective)); - - /* if quarter step, bipolar Vref2 */ - if (scan_step_type > 1) - { - if (scan_step_type < 3) - { - val = effective & ~REG6C_GPIO13; - } - else - { - val = effective | REG6C_GPIO13; - } - } - else - { - val = effective; - } - RIE (sanei_genesys_write_register (dev, REG6C, val)); - - /* effective scan */ - RIE (sanei_genesys_read_register (dev, REG6C, &effective)); - val = effective | REG6C_GPIO10; - RIE (sanei_genesys_write_register (dev, REG6C, val)); - - min_restep=scan_steps/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_zmode2(use_fast_fed, - scan_exposure_time*ccdlmt*tgtime, - scan_table, - scan_steps*factor, - feedl, - min_restep*factor, - &z1, - &z2); - - DBG(DBG_info, "%s: z1 = %d\n", __func__, z1); - sanei_genesys_set_triple(reg, REG60, z1 | (scan_step_type << (16+REG60S_STEPSEL))); - - DBG(DBG_info, "%s: z2 = %d\n", __func__, z2); - sanei_genesys_set_triple(reg, REG63, z2 | (scan_step_type << (16+REG63S_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, REG67); - r->value = REG67_MTRPWM; - - r = sanei_genesys_get_address (reg, REG68); - r->value = REG68_FASTPWM; - - r = sanei_genesys_get_address (reg, REG_STEPNO); - r->value = scan_steps; - - r = sanei_genesys_get_address (reg, REG_FASTNO); - r->value = scan_steps; - - r = sanei_genesys_get_address (reg, REG_FSHDEC); - r->value = scan_steps; - - r = sanei_genesys_get_address (reg, REG_FMOVNO); - r->value = fast_steps; - - r = sanei_genesys_get_address (reg, REG_FMOVDEC); - r->value = fast_steps; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - - -/** @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 SANE_Status -gl847_init_optical_regs_scan (Genesys_Device * dev, - const Genesys_Sensor& sensor, - Genesys_Register_Set * reg, - unsigned int exposure_time, - int used_res, - unsigned int start, - unsigned int pixels, - int channels, - int depth, - SANE_Bool half_ccd, ColorFilter color_filter, int flags) -{ - unsigned int words_per_line; - unsigned int startx, endx, used_pixels; - unsigned int dpiset, dpihw,segnb,cksel,factor; - unsigned int bytes; - GenesysRegister *r; - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_proc, "%s : exposure_time=%d, used_res=%d, start=%d, pixels=%d, channels=%d, depth=%d, " - "half_ccd=%d, flags=%x\n", __func__, exposure_time, used_res, start, pixels, channels, depth, - half_ccd, flags); - - /* resolution is divided according to CKSEL */ - r = sanei_genesys_get_address (reg, REG18); - cksel= (r->value & REG18_CKSEL)+1; - DBG(DBG_io2, "%s: cksel=%d\n", __func__, cksel); - - /* to manage high resolution device while keeping good - * low resolution scanning speed, we make hardware dpi vary */ - dpihw=sanei_genesys_compute_dpihw(dev, sensor, used_res * cksel); - factor=sensor.optical_res/dpihw; - DBG(DBG_io2, "%s: dpihw=%d (factor=%d)\n", __func__, dpihw, factor); - - /* sensor parameters */ - Sensor_Profile* sensor_profile=get_sensor_profile(dev->model->ccd_type, dpihw); - gl847_setup_sensor(dev, sensor, reg, dpihw); - dpiset = used_res * cksel; - - /* start and end coordinate in optical dpi coordinates */ - startx = start/cksel+sensor.CCD_start_xoffset; - used_pixels=pixels/cksel; - - /* end of sensor window */ - endx = startx + used_pixels; - - /* sensors are built from 600 dpi segments for LiDE 100/200 - * and 1200 dpi for the 700F */ - if (dev->model->flags & GENESYS_FLAG_SIS_SENSOR) - { - segnb=dpihw/600; - } - else - { - segnb=1; - } - - /* compute pixel coordinate in the given dpihw space, - * taking segments into account */ - startx/=factor*segnb; - endx/=factor*segnb; - dev->len=endx-startx; - dev->dist=0; - dev->skip=0; - - /* in cas of multi-segments sensor, we have to add the witdh - * of the sensor crossed by the scan area */ - if (dev->model->flags & GENESYS_FLAG_SIS_SENSOR && segnb>1) - { - dev->dist = sensor_profile->segcnt; - } - - /* use a segcnt rounded to next even number */ - endx += ((dev->dist+1)&0xfffe)*(segnb-1); - used_pixels=endx-startx; - - status = gl847_set_fe(dev, sensor, AFE_SET); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set frontend: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* enable shading */ - r = sanei_genesys_get_address (reg, REG01); - r->value &= ~REG01_SCAN; - r->value |= REG01_SHDAREA; - if ((flags & OPTICAL_FLAG_DISABLE_SHADING) || - (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION)) - { - r->value &= ~REG01_DVDSET; - } - else - { - r->value |= REG01_DVDSET; - } - - r = sanei_genesys_get_address (reg, REG03); - r->value &= ~REG03_AVEENB; - - sanei_genesys_set_lamp_power(dev, sensor, *reg, !(flags & OPTICAL_FLAG_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, REG04); - switch (depth) - { - case 1: - r->value &= ~REG04_BITSET; - r->value |= REG04_LINEART; - break; - case 8: - r->value &= ~(REG04_LINEART | REG04_BITSET); - break; - case 16: - r->value &= ~REG04_LINEART; - r->value |= REG04_BITSET; - break; - } - - r->value &= ~(REG04_FILTER | REG04_AFEMOD); - if (channels == 1) - { - switch (color_filter) - { - - case ColorFilter::RED: - r->value |= 0x14; - break; - case ColorFilter::BLUE: - r->value |= 0x1c; - break; - case ColorFilter::GREEN: - r->value |= 0x18; - break; - default: - break; // should not happen - } - } - else - r->value |= 0x10; /* mono */ - - /* register 05 */ - r = sanei_genesys_get_address (reg, REG05); - - /* set up dpihw */ - r->value &= ~REG05_DPIHW; - switch(dpihw) - { - case 600: - r->value |= REG05_DPIHW_600; - break; - case 1200: - r->value |= REG05_DPIHW_1200; - break; - case 2400: - r->value |= REG05_DPIHW_2400; - break; - case 4800: - r->value |= REG05_DPIHW_4800; - break; - } - - /* enable gamma tables */ - if (flags & OPTICAL_FLAG_DISABLE_GAMMA) - r->value &= ~REG05_GMMENB; - else - r->value |= REG05_GMMENB; - - /* CIS scanners can do true gray by setting LEDADD */ - /* we set up LEDADD only when asked */ - if (dev->model->is_cis == SANE_TRUE) - { - r = sanei_genesys_get_address (reg, 0x87); - r->value &= ~REG87_LEDADD; - if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD)) - { - r->value |= REG87_LEDADD; - } - /* RGB weighting - r = sanei_genesys_get_address (reg, 0x01); - r->value &= ~REG01_TRUEGRAY; - if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD)) - { - r->value |= REG01_TRUEGRAY; - }*/ - } - - /* words(16bit) before gamma, conversion to 8 bit or lineart*/ - words_per_line = (used_pixels * dpiset) / dpihw; - bytes=depth/8; - if (depth == 1) - { - words_per_line = (words_per_line+7)/8 ; - dev->len = (dev->len >> 3) + ((dev->len & 7) ? 1 : 0); - dev->dist = (dev->dist >> 3) + ((dev->dist & 7) ? 1 : 0); - } - else - { - words_per_line *= bytes; - dev->dist *= bytes; - dev->len *= bytes; - } - - dev->bpl = words_per_line; - dev->cur=0; - dev->segnb=segnb; - dev->line_interp = 0; - - sanei_genesys_set_double(reg,REG_DPISET,dpiset); - DBG (DBG_io2, "%s: dpiset used=%d\n", __func__, dpiset); - - sanei_genesys_set_double(reg,REG_STRPIXEL,startx); - sanei_genesys_set_double(reg,REG_ENDPIXEL,endx); - DBG (DBG_io2, "%s: startx=%d\n", __func__, startx); - DBG (DBG_io2, "%s: endx =%d\n", __func__, endx); - - DBG (DBG_io2, "%s: used_pixels=%d\n", __func__, used_pixels); - DBG (DBG_io2, "%s: pixels =%d\n", __func__, pixels); - DBG (DBG_io2, "%s: depth =%d\n", __func__, depth); - DBG (DBG_io2, "%s: dev->bpl =%lu\n", __func__, (unsigned long)dev->bpl); - DBG (DBG_io2, "%s: dev->len =%lu\n", __func__, (unsigned long)dev->len); - DBG (DBG_io2, "%s: dev->dist =%lu\n", __func__, (unsigned long)dev->dist); - DBG (DBG_io2, "%s: dev->segnb =%lu\n", __func__, (unsigned long)dev->segnb); - - words_per_line *= channels; - dev->wpl = words_per_line; - - dev->oe_buffer.clear(); - dev->oe_buffer.alloc(dev->wpl); - - /* MAXWD is expressed in 4 words unit */ - sanei_genesys_set_triple(reg, REG_MAXWD, (words_per_line >> 2)); - DBG(DBG_io2, "%s: words_per_line used=%d\n", __func__, words_per_line); - - sanei_genesys_set_double(reg, 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; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/* set up registers for an actual scan - * - * this function sets up the scanner to scan in normal or single line mode - */ -static SANE_Status -gl847_init_scan_regs(Genesys_Device * dev, const Genesys_Sensor& sensor, Genesys_Register_Set * reg, - SetupParams& params) - -{ - params.assert_valid(); - - int used_res; - int start, used_pixels; - int bytes_per_line; - int move; - unsigned int lincnt; - unsigned int oflags; /**> optical flags */ - unsigned int mflags; /**> motor flags */ - int exposure_time; - int stagger; - - int slope_dpi = 0; - int dummy = 0; - int scan_step_type = 1; - int scan_power_mode = 0; - int max_shift; - size_t requested_buffer_size, read_buffer_size; - - SANE_Bool half_ccd; /* false: full CCD res is used, true, half max CCD res is used */ - int optical_res; - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_info, "%s ", __func__); - debug_dump(DBG_info, params); - - /* we may have 2 domains for ccd: xres below or above half ccd max dpi */ - if (sensor.get_ccd_size_divisor_for_dpi(params.xres) > 1) - { - half_ccd = SANE_TRUE; - } - else - { - half_ccd = SANE_FALSE; - } - - /* optical_res */ - optical_res = sensor.optical_res; - if (half_ccd) - optical_res /= 2; - - /* stagger */ - if ((!half_ccd) && (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE)) - stagger = (4 * params.yres) / dev->motor.base_ydpi; - else - stagger = 0; - DBG(DBG_info, "%s : stagger=%d lines\n", __func__, stagger); - - /* used_res */ - if (params.flags & SCAN_FLAG_USE_OPTICAL_RES) - { - used_res = optical_res; - } - else - { - /* resolution is choosen from a list */ - used_res = params.xres; - } - - /* compute scan parameters values */ - /* pixels are allways given at full optical resolution */ - /* use detected left margin and fixed value */ - /* start */ - /* add x coordinates */ - start = params.startx; - - if (stagger > 0) - start |= 1; - - /* compute correct pixels number */ - /* pixels */ - used_pixels = (params.pixels * optical_res) / params.xres; - - /* round up pixels number if needed */ - if (used_pixels * params.xres < params.pixels * optical_res) - used_pixels++; - - dummy = 3-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 = params.yres * params.channels; - else - slope_dpi = params.yres; - - slope_dpi = slope_dpi * (1 + dummy); - - exposure_time = gl847_compute_exposure (dev, used_res); - scan_step_type = sanei_genesys_compute_step_type(gl847_motors, dev->model->motor_type, exposure_time); - - DBG(DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time); - DBG(DBG_info, "%s : scan_step_type=%d\n", __func__, scan_step_type); - -/*** optical parameters ***/ - /* in case of dynamic lineart, we use an internal 8 bit gray scan - * to generate 1 lineart data */ - if (params.flags & SCAN_FLAG_DYNAMIC_LINEART) { - params.depth = 8; - } - - /* we enable true gray for cis scanners only, and just when doing - * scan since color calibration is OK for this mode - */ - oflags = 0; - if(params.flags & SCAN_FLAG_DISABLE_SHADING) - oflags |= OPTICAL_FLAG_DISABLE_SHADING; - if(params.flags & SCAN_FLAG_DISABLE_GAMMA) - oflags |= OPTICAL_FLAG_DISABLE_GAMMA; - if(params.flags & SCAN_FLAG_DISABLE_LAMP) - oflags |= OPTICAL_FLAG_DISABLE_LAMP; - - if (dev->model->is_cis && dev->settings.true_gray) - { - oflags |= OPTICAL_FLAG_ENABLE_LEDADD; - } - - status = gl847_init_optical_regs_scan (dev, sensor, - reg, - exposure_time, - used_res, - start, - used_pixels, - params.channels, - params.depth, - half_ccd, - params.color_filter, - oflags); - - if (status != SANE_STATUS_GOOD) - return status; - -/*** motor parameters ***/ - - /* max_shift */ - max_shift=sanei_genesys_compute_max_shift(dev,params.channels,params.yres,params.flags); - - /* lincnt */ - lincnt = params.lines + max_shift + stagger; - - /* add tl_y to base movement */ - move = params.starty; - DBG(DBG_info, "%s: move=%d steps\n", __func__, move); - - mflags=0; - if(params.flags & SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE) - mflags |= MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE; - if(params.flags & SCAN_FLAG_FEEDING) - mflags |= MOTOR_FLAG_FEED; - - status = gl847_init_motor_regs_scan (dev, sensor, - reg, - exposure_time, - slope_dpi, - scan_step_type, - dev->model->is_cis ? lincnt * - params.channels : lincnt, dummy, move, - scan_power_mode, - mflags); - - if (status != SANE_STATUS_GOOD) - return status; - - - /*** prepares data reordering ***/ - -/* words_per_line */ - bytes_per_line = (used_pixels * used_res) / optical_res; - bytes_per_line = (bytes_per_line * params.channels * params.depth) / 8; - - requested_buffer_size = 8 * bytes_per_line; - - read_buffer_size = - 2 * requested_buffer_size + - ((max_shift + stagger) * used_pixels * params.channels * params.depth) / 8; - - dev->read_buffer.clear(); - dev->read_buffer.alloc(read_buffer_size); - - dev->lines_buffer.clear(); - dev->lines_buffer.alloc(read_buffer_size); - - dev->shrink_buffer.clear(); - dev->shrink_buffer.alloc(requested_buffer_size); - - dev->out_buffer.clear(); - dev->out_buffer.alloc((8 * params.pixels * params.channels * params.depth) / 8); - - dev->read_bytes_left = bytes_per_line * lincnt; - - DBG(DBG_info, "%s: physical bytes to read = %lu\n", __func__, (u_long) dev->read_bytes_left); - dev->read_active = SANE_TRUE; - - dev->current_setup.params = params; - dev->current_setup.pixels = (used_pixels * used_res) / optical_res; - dev->current_setup.lines = lincnt; - dev->current_setup.depth = params.depth; - dev->current_setup.channels = params.channels; - dev->current_setup.exposure_time = exposure_time; - dev->current_setup.xres = used_res; - dev->current_setup.yres = params.yres; - dev->current_setup.ccd_size_divisor = half_ccd ? 2 : 1; - dev->current_setup.stagger = stagger; - dev->current_setup.max_shift = max_shift + stagger; - -/* TODO: should this be done elsewhere? */ - /* scan bytes to send to the frontend */ - /* theory : - target_size = - (params.pixels * params.lines * channels * depth) / 8; - but it suffers from integer overflow so we do the following: - - 1 bit color images store color data byte-wise, eg byte 0 contains - 8 bits of red data, byte 1 contains 8 bits of green, byte 2 contains - 8 bits of blue. - This does not fix the overflow, though. - 644mp*16 = 10gp, leading to an overflow - -- pierre - */ - - dev->total_bytes_read = 0; - if (params.depth == 1) - dev->total_bytes_to_read = - ((params.pixels * params.lines) / 8 + - (((params.pixels * params.lines) % 8) ? 1 : 0)) * - params.channels; - else - dev->total_bytes_to_read = - params.pixels * params.lines * params.channels * (params.depth / 8); - - DBG(DBG_info, "%s: total bytes to send = %lu\n", __func__, (u_long) dev->total_bytes_to_read); -/* END TODO */ - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static void -gl847_calculate_current_setup(Genesys_Device * dev, const Genesys_Sensor& sensor) -{ - int channels; - int depth; - int start; - - int used_res; - int used_pixels; - unsigned int lincnt; - int exposure_time; - int stagger; - - int slope_dpi = 0; - int dummy = 0; - int max_shift; - - SANE_Bool half_ccd; /* false: full CCD res is used, true, half max CCD res is used */ - int optical_res; - - DBG(DBG_info, "%s ", __func__); - debug_dump(DBG_info, dev->settings); - - /* channels */ - if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS) - channels = 3; - else - channels = 1; - - /* depth */ - depth = dev->settings.depth; - if (dev->settings.scan_mode == ScanColorMode::LINEART) - depth = 1; - - /* start */ - start = SANE_UNFIX (dev->model->x_offset); - start += dev->settings.tl_x; - start = (start * sensor.optical_res) / MM_PER_INCH; - - SetupParams params; - params.xres = dev->settings.xres; - params.yres = dev->settings.yres; - params.startx = start; // not used - params.starty = 0; // not used - params.pixels = dev->settings.pixels; - params.lines = dev->settings.lines; - params.depth = depth; - params.channels = channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = dev->settings.scan_mode; - params.color_filter = dev->settings.color_filter; - params.flags = 0; - - DBG(DBG_info, "%s ", __func__); - debug_dump(DBG_info, params); - -/* half_ccd */ - /* we have 2 domains for ccd: xres below or above half ccd max dpi */ - if (sensor.get_ccd_size_divisor_for_dpi(params.xres) > 1) { - half_ccd = SANE_TRUE; - } else { - half_ccd = SANE_FALSE; - } - - /* optical_res */ - optical_res = sensor.optical_res; - - /* stagger */ - if (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE) - stagger = (4 * params.yres) / dev->motor.base_ydpi; - else - stagger = 0; - DBG(DBG_info, "%s: stagger=%d lines\n", __func__, stagger); - - /* resolution is choosen from a fixed list */ - used_res = params.xres; - - /* compute scan parameters values */ - /* pixels are allways given at half or full CCD optical resolution */ - /* use detected left margin and fixed value */ - - /* compute correct pixels number */ - used_pixels = (params.pixels * optical_res) / used_res; - dummy = 3 - 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 = params.yres * params.channels; - } else { - slope_dpi = params.yres; - } - - slope_dpi = slope_dpi * (1 + dummy); - - exposure_time = gl847_compute_exposure (dev, used_res); - DBG(DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time); - - /* max_shift */ - max_shift = sanei_genesys_compute_max_shift(dev, params.channels, params.yres, 0); - - /* lincnt */ - lincnt = params.lines + max_shift + stagger; - - dev->current_setup.params = params; - dev->current_setup.pixels = (used_pixels * used_res) / optical_res; - dev->current_setup.lines = lincnt; - dev->current_setup.depth = params.depth; - dev->current_setup.channels = params.channels; - dev->current_setup.exposure_time = exposure_time; - dev->current_setup.xres = used_res; - dev->current_setup.yres = params.yres; - dev->current_setup.ccd_size_divisor = half_ccd ? 2 : 1; - dev->current_setup.stagger = stagger; - dev->current_setup.max_shift = max_shift + stagger; - - DBGCOMPLETED; -} - -/*for fast power saving methods only, like disabling certain amplifiers*/ -static SANE_Status -gl847_save_power (Genesys_Device * dev, SANE_Bool enable) -{ - DBG(DBG_proc, "%s: enable = %d\n", __func__, enable); - if (dev == NULL) - return SANE_STATUS_INVAL; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static SANE_Status -gl847_set_powersaving (Genesys_Device * dev, int delay /* in minutes */ ) -{ - DBG(DBG_proc, "%s (delay = %d)\n", __func__, delay); - if (dev == NULL) - return SANE_STATUS_INVAL; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static SANE_Status -gl847_start_action (Genesys_Device * dev) -{ - return sanei_genesys_write_register (dev, 0x0f, 0x01); -} - -static SANE_Status -gl847_stop_action (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val40, val; - unsigned int loop; - - DBGSTART; - - /* post scan gpio : without that HOMSNR is unreliable */ - gl847_homsnr_gpio(dev); - status = sanei_genesys_get_status (dev, &val); - if (DBG_LEVEL >= DBG_io) - { - sanei_genesys_print_status (val); - } - - status = sanei_genesys_read_register (dev, REG40, &val40); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - /* only stop action if needed */ - if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG)) - { - DBG(DBG_info, "%s: already stopped\n", __func__); - DBGCOMPLETED; - return SANE_STATUS_GOOD; - } - - /* ends scan */ - val = dev->reg.get8(REG01); - val &= ~REG01_SCAN; - sanei_genesys_set_reg_from_set(&dev->reg, REG01, val); - status = sanei_genesys_write_register (dev, REG01, val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to write register 01: %s\n", __func__, sane_strstatus(status)); - return status; - } - sanei_genesys_sleep_ms(100); - - loop = 10; - while (loop > 0) - { - status = sanei_genesys_get_status (dev, &val); - if (DBG_LEVEL >= DBG_io) - { - sanei_genesys_print_status (val); - } - status = sanei_genesys_read_register (dev, REG40, &val40); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - /* if scanner is in command mode, we are done */ - if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG) - && !(val & REG41_MOTORENB)) - { - DBGCOMPLETED; - return SANE_STATUS_GOOD; - } - - sanei_genesys_sleep_ms(100); - loop--; - } - - DBGCOMPLETED; - return SANE_STATUS_IO_ERROR; -} - -/* Send the low-level scan command */ -static SANE_Status -gl847_begin_scan (Genesys_Device * dev, const Genesys_Sensor& sensor, Genesys_Register_Set * reg, - SANE_Bool start_motor) -{ - (void) sensor; - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - GenesysRegister *r; - - DBGSTART; - - /* clear GPIO 10 */ - if (dev->model->gpo_type != GPO_CANONLIDE700) - { - RIE (sanei_genesys_read_register (dev, REG6C, &val)); - val &= ~REG6C_GPIO10; - RIE (sanei_genesys_write_register (dev, REG6C, val)); - } - - val = REG0D_CLRLNCNT; - RIE (sanei_genesys_write_register (dev, REG0D, val)); - val = REG0D_CLRMCNT; - RIE (sanei_genesys_write_register (dev, REG0D, val)); - - RIE (sanei_genesys_read_register (dev, REG01, &val)); - val |= REG01_SCAN; - RIE (sanei_genesys_write_register (dev, REG01, val)); - r = sanei_genesys_get_address (reg, REG01); - r->value = val; - - if (start_motor) - { - RIE (sanei_genesys_write_register (dev, REG0F, 1)); - } - else - { - RIE (sanei_genesys_write_register (dev, REG0F, 0)); - } - - DBGCOMPLETED; - - return status; -} - - -/* Send the stop scan command */ -static SANE_Status -gl847_end_scan (Genesys_Device * dev, Genesys_Register_Set * reg, - SANE_Bool check_stop) -{ - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_proc, "%s (check_stop = %d)\n", __func__, check_stop); - if (reg == NULL) - return SANE_STATUS_INVAL; - - if (dev->model->is_sheetfed == SANE_TRUE) - { - status = SANE_STATUS_GOOD; - } - else /* flat bed scanners */ - { - status = gl847_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to stop: %s\n", __func__, sane_strstatus(status)); - return status; - } - } - - DBGCOMPLETED; - return status; -} - -/** rewind scan - * Move back by the same amount of distance than previous scan. - * @param dev device to rewind - * @returns SANE_STATUS_GOOD on success - */ -#if 0 /* disabled to fix #7 */ -static -SANE_Status gl847_rewind(Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t byte; - - DBGSTART; - - /* set motor reverse */ - RIE (sanei_genesys_read_register (dev, 0x02, &byte)); - byte |= 0x04; - RIE (sanei_genesys_write_register(dev, 0x02, byte)); - - /* and start scan, then wait completion */ - RIE (gl847_begin_scan (dev, dev->reg, SANE_TRUE)); - do - { - sanei_genesys_sleep_ms(100); - RIE (sanei_genesys_read_register (dev, REG40, &byte)); - } - while(byte & REG40_MOTMFLG); - RIE (gl847_end_scan (dev, dev->reg, SANE_TRUE)); - - /* restore direction */ - RIE (sanei_genesys_read_register (dev, 0x02, &byte)); - byte &= 0xfb; - RIE (sanei_genesys_write_register(dev, 0x02, byte)); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} -#endif - -/** Park head - * Moves the slider to the home (top) position slowly - * @param dev device to park - * @param wait_until_home true to make the function waiting for head - * to be home before returning, if fals returne immediately - * @returns SANE_STATUS_GOO on success */ -static -SANE_Status -gl847_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home) -{ - Genesys_Register_Set local_reg; - SANE_Status status = SANE_STATUS_GOOD; - GenesysRegister *r; - float resolution; - uint8_t val; - int loop = 0; - ScanColorMode scan_mode; - - DBG(DBG_proc, "%s (wait_until_home = %d)\n", __func__, wait_until_home); - - /* post scan gpio : without that HOMSNR is unreliable */ - gl847_homsnr_gpio(dev); - - /* first read gives HOME_SENSOR true */ - status = sanei_genesys_get_status (dev, &val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status)); - return status; - } - if (DBG_LEVEL >= DBG_io) - { - sanei_genesys_print_status (val); - } - sanei_genesys_sleep_ms(100); - - /* second is reliable */ - status = sanei_genesys_get_status (dev, &val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status)); - return status; - } - if (DBG_LEVEL >= DBG_io) - { - sanei_genesys_print_status (val); - } - - /* is sensor at home? */ - if (val & HOMESNR) - { - DBG(DBG_info, "%s: already at home, completed\n", __func__); - dev->scanhead_position_in_steps = 0; - DBGCOMPLETED; - return SANE_STATUS_GOOD; - } - - local_reg = dev->reg; - - resolution=sanei_genesys_get_lowest_ydpi(dev); - - const auto& sensor = sanei_genesys_find_sensor_any(dev); - - /* TODO add scan_mode to the API */ - scan_mode = dev->settings.scan_mode; - dev->settings.scan_mode = ScanColorMode::LINEART; - - SetupParams params; - params.xres = resolution; - params.yres = resolution; - params.startx = 100; - params.starty = 30000; - params.pixels = 100; - params.lines = 100; - params.depth = 8; - params.channels = 1; - params.scan_method = dev->settings.scan_method; - params.scan_mode = ScanColorMode::GRAY; - params.color_filter = ColorFilter::RED; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - status = gl847_init_scan_regs(dev, sensor, &local_reg, params); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - dev->settings.scan_mode = scan_mode; - - /* clear scan and feed count */ - RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT)); - - /* set up for reverse */ - r = sanei_genesys_get_address (&local_reg, REG02); - r->value |= REG02_MTRREV; - - RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg)); - - try { - status = gl847_start_action (dev); - } catch (...) { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - try { - gl847_stop_action(dev); - } catch (...) {} - try { - // restore original registers - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - } catch (...) {} - throw; - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - gl847_stop_action (dev); - /* send original registers */ - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - return status; - } - - /* post scan gpio : without that HOMSNR is unreliable */ - gl847_homsnr_gpio(dev); - - if (wait_until_home) - { - while (loop < 300) /* do not wait longer then 30 seconds */ - { - status = sanei_genesys_get_status (dev, &val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, - sane_strstatus(status)); - return status; - } - - if (val & HOMESNR) /* home sensor */ - { - DBG(DBG_info, "%s: reached home position\n", __func__); - gl847_stop_action (dev); - dev->scanhead_position_in_steps = 0; - DBGCOMPLETED; - return SANE_STATUS_GOOD; - } - sanei_genesys_sleep_ms(100); - ++loop; - } - - /* when we come here then the scanner needed too much time for this, so we better stop the motor */ - gl847_stop_action (dev); - DBG(DBG_error, "%s: timeout while waiting for scanhead to go home\n", __func__); - return SANE_STATUS_IO_ERROR; - } - - DBG(DBG_info, "%s: scanhead is still moving\n", __func__); - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/* Automatically set top-left edge of the scan area by scanning a 200x200 pixels - area at 600 dpi from very top of scanner */ -static SANE_Status -gl847_search_start_position (Genesys_Device * dev) -{ - int size; - SANE_Status status = SANE_STATUS_GOOD; - Genesys_Register_Set local_reg; - int steps; - - int pixels = 600; - int dpi = 300; - - DBG(DBG_proc, "%s\n", __func__); - - 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. - auto& sensor = sanei_genesys_find_sensor_for_write(dev, dpi); - - SetupParams params; - params.xres = dpi; - params.yres = dpi; - params.startx = 0; - params.starty = 0; /*we should give a small offset here~60 steps */ - params.pixels = 600; - params.lines = dev->model->search_lines; - params.depth = 8; - params.channels = 1; - params.scan_method = dev->settings.scan_method; - params.scan_mode = ScanColorMode::GRAY; - params.color_filter = ColorFilter::GREEN; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - status = gl847_init_scan_regs(dev, sensor, &local_reg, params); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - /* send to scanner */ - status = dev->model->cmd_set->bulk_write_register(dev, local_reg); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - size = pixels * dev->model->search_lines; - - std::vector<uint8_t> data(size); - - status = gl847_begin_scan(dev, sensor, &local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* waits for valid data */ - do - sanei_genesys_test_buffer_empty (dev, &steps); - while (steps); - - /* now we're on target, we can read data */ - status = sanei_genesys_read_data_from_scanner(dev, data.data(), size); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status)); - return status; - } - - if (DBG_LEVEL >= DBG_data) - sanei_genesys_write_pnm_file("gl847_search_position.pnm", data.data(), 8, 1, pixels, - dev->model->search_lines); - - status = gl847_end_scan(dev, &local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to end scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* 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*/ - status = - sanei_genesys_search_reference_point(dev, sensor, data.data(), 0, dpi, pixels, - dev->model->search_lines); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set search reference point: %s\n", __func__, - sane_strstatus(status)); - return status; - } - - return SANE_STATUS_GOOD; -} - -/* - * sets up register for coarse gain calibration - * todo: check it for scanners using it */ -static SANE_Status -gl847_init_regs_for_coarse_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set& regs) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t channels; - uint8_t cksel; - - DBG(DBG_proc, "%s\n", __func__); - - - cksel = (regs.find_reg(0x18).value & REG18_CKSEL) + 1; /* clock speed = 1..4 clocks */ - - /* set line size */ - if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS) - channels = 3; - else { - channels = 1; - } - - SetupParams params; - params.xres = dev->settings.xres; - params.yres = dev->settings.yres; - params.startx = 0; - params.starty = 0; - params.pixels = sensor.optical_res / cksel; - params.lines = 20; - params.depth = 16; - params.channels = channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = dev->settings.scan_mode; - params.color_filter = dev->settings.color_filter; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - status = gl847_init_scan_regs(dev, sensor, ®s, params); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: Failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - DBG(DBG_info, "%s: optical sensor res: %d dpi, actual res: %d\n", __func__, - sensor.optical_res / cksel, dev->settings.xres); - - status = - dev->model->cmd_set->bulk_write_register(dev, regs); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: Failed to bulk write registers: %s\n", __func__, sane_strstatus(status)); - return status; - } - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/** @brief moves the slider to steps at motor base dpi - * @param dev device to work on - * @param steps number of steps to move in base_dpi line count - * */ -static SANE_Status -gl847_feed (Genesys_Device * dev, unsigned int steps) -{ - Genesys_Register_Set local_reg; - SANE_Status status = SANE_STATUS_GOOD; - GenesysRegister *r; - float resolution; - uint8_t val; - - DBGSTART; - DBG(DBG_io, "%s: steps=%d\n", __func__, steps); - - local_reg = dev->reg; - - resolution=sanei_genesys_get_lowest_ydpi(dev); - const auto& sensor = sanei_genesys_find_sensor(dev, resolution); - - SetupParams params; - params.xres = resolution; - params.yres = resolution; - params.startx = 0; - params.starty = steps; - params.pixels = 100; - params.lines = 3; - params.depth = 8; - params.channels = 3; - params.scan_method = dev->settings.scan_method; - params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - params.color_filter = dev->settings.color_filter; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_FEEDING | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - status = gl847_init_scan_regs(dev, sensor, &local_reg, params); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - /* set exposure to zero */ - sanei_genesys_set_triple(&local_reg,REG_EXPR,0); - sanei_genesys_set_triple(&local_reg,REG_EXPG,0); - sanei_genesys_set_triple(&local_reg,REG_EXPB,0); - - /* clear scan and feed count */ - RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT)); - RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRMCNT)); - - /* set up for no scan */ - r = sanei_genesys_get_address(&local_reg, REG01); - r->value &= ~REG01_SCAN; - - /* send registers */ - RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg)); - - try { - status = gl847_start_action (dev); - } catch (...) { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - try { - gl847_stop_action(dev); - } catch (...) {} - try { - // restore original registers - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - } catch (...) {} - throw; - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - gl847_stop_action (dev); - - /* restore original registers */ - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - return status; - } - - /* wait until feed count reaches the required value, but do not - * exceed 30s */ - do - { - status = sanei_genesys_get_status (dev, &val); - } - while (status == SANE_STATUS_GOOD && !(val & FEEDFSH)); - - /* then stop scanning */ - RIE(gl847_stop_action (dev)); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - - -/* init registers for shading calibration */ -static SANE_Status -gl847_init_regs_for_shading(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set& regs) -{ - SANE_Status status = SANE_STATUS_GOOD; - float move; - - DBGSTART; - dev->calib_channels = 3; - - /* initial calibration reg values */ - regs = dev->reg; - - dev->calib_resolution = sanei_genesys_compute_dpihw(dev, sensor, dev->settings.xres); - 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 = (sensor.sensor_pixels*dev->calib_resolution)/sensor.optical_res; - DBG(DBG_io, "%s: calib_lines = %d\n", __func__, (int)dev->calib_lines); - DBG(DBG_io, "%s: calib_pixels = %d\n", __func__, (int)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; - } - - SetupParams params; - params.xres = dev->calib_resolution; - params.yres = dev->calib_resolution; - params.startx = 0; - params.starty = move; - params.pixels = dev->calib_pixels; - params.lines = dev->calib_lines; - params.depth = 16; - params.channels = dev->calib_channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - params.color_filter = dev->settings.color_filter; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - status = gl847_init_scan_regs(dev, sensor, ®s, params); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = dev->model->cmd_set->bulk_write_register(dev, regs); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* we use GENESYS_FLAG_SHADING_REPARK */ - dev->scanhead_position_in_steps = 0; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/** @brief set up registers for the actual scan - */ -static SANE_Status -gl847_init_regs_for_scan (Genesys_Device * dev, const Genesys_Sensor& sensor) -{ - int channels; - int flags; - int depth; - float move; - int move_dpi; - float start; - - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_info, "%s ", __func__); - debug_dump(DBG_info, dev->settings); - - /* channels */ - if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS) - channels = 3; - else - channels = 1; - - /* depth */ - depth = dev->settings.depth; - if (dev->settings.scan_mode == ScanColorMode::LINEART) - depth = 1; - - - /* 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: - SANE_Fixed y_offset; - SANE_Fixed y_size; - SANE_Fixed 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 = SANE_UNFIX (dev->model->y_offset); - move += dev->settings.tl_y; - move = (move * move_dpi) / MM_PER_INCH; - move -= dev->scanhead_position_in_steps; - 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(channels*dev->settings.yres>=600 && move>700) - { - status = gl847_feed (dev, move-500); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to move to scan area\n", __func__); - return status; - } - move=500; - } - - DBG(DBG_info, "%s: move=%f steps\n", __func__, move); - DBG(DBG_info, "%s: move=%f steps\n", __func__, move); - - /* start */ - start = SANE_UNFIX (dev->model->x_offset); - start += dev->settings.tl_x; - start = (start * sensor.optical_res) / MM_PER_INCH; - - flags = 0; - - /* emulated lineart from gray data is required for now */ - if(dev->settings.scan_mode == ScanColorMode::LINEART - && dev->settings.dynamic_lineart) - { - flags |= SCAN_FLAG_DYNAMIC_LINEART; - } - - /* backtracking isn't handled well, so don't enable it */ - flags |= SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE; - - SetupParams params; - params.xres = dev->settings.xres; - params.yres = dev->settings.yres; - params.startx = start; - params.starty = move; - params.pixels = dev->settings.pixels; - params.lines = dev->settings.lines; - params.depth = depth; - params.channels = channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = dev->settings.scan_mode; - params.color_filter = dev->settings.color_filter; - params.flags = flags; - - status = gl847_init_scan_regs(dev, sensor, &dev->reg, params); - - if (status != SANE_STATUS_GOOD) - return status; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - - -/** - * Send shading calibration data. The buffer is considered to always hold values - * for all the channels. - */ -static SANE_Status -gl847_send_shading_data (Genesys_Device * dev, const Genesys_Sensor& sensor, - uint8_t * data, int size) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint32_t addr, length, i, x, factor, pixels; - uint32_t dpiset, dpihw, strpixel, endpixel; - uint16_t tempo; - uint32_t lines, channels; - uint8_t val,*ptr,*src; - - DBGSTART; - DBG(DBG_io2, "%s: writing %d bytes of shading data\n", __func__, size); - - /* 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 = (uint32_t) (size / 3); - sanei_genesys_get_double(&dev->reg,REG_STRPIXEL,&tempo); - strpixel=tempo; - sanei_genesys_get_double(&dev->reg,REG_ENDPIXEL,&tempo); - endpixel=tempo; - - /* compute deletion factor */ - sanei_genesys_get_double(&dev->reg,REG_DPISET,&tempo); - dpiset=tempo; - DBG(DBG_io2, "%s: STRPIXEL=%d, ENDPIXEL=%d, PIXELS=%d, DPISET=%d\n", __func__, strpixel, endpixel, - endpixel-strpixel, dpiset); - dpihw=sanei_genesys_compute_dpihw(dev, sensor, dpiset); - factor=dpihw/dpiset; - DBG(DBG_io2, "%s: factor=%d\n", __func__, factor); - - if(DBG_LEVEL>=DBG_data) - { - dev->binary=fopen("binary.pnm","wb"); - sanei_genesys_get_triple(&dev->reg, REG_LINCNT, &lines); - channels=dev->current_setup.channels; - if(dev->binary!=NULL) - { - fprintf(dev->binary,"P5\n%d %d\n%d\n",(endpixel-strpixel)/factor*channels,lines/channels,255); - } - } - - 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; - - 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; - } - - RIE (sanei_genesys_read_register (dev, 0xd0+i, &val)); - addr = val * 8192 + 0x10000000; - status = sanei_genesys_write_ahb(dev, addr, pixels, buffer.data()); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s; write to AHB failed (%s)\n", __func__, sane_strstatus(status)); - return status; - } - } - - DBGCOMPLETED; - - return status; -} - -/** @brief calibrates led exposure - * Calibrate exposure by scanning a white area until the used exposure gives - * data white enough. - * @param dev device to calibrate - */ -static SANE_Status -gl847_led_calibration (Genesys_Device * dev, Genesys_Sensor& sensor, Genesys_Register_Set& regs) -{ - int num_pixels; - int total_size; - int used_res; - int i, j; - SANE_Status status = SANE_STATUS_GOOD; - int val; - int channels, depth; - int avg[3], top[3], bottom[3]; - int turn; - uint16_t exp[3]; - float move; - SANE_Bool acceptable; - - DBGSTART; - - move = SANE_UNFIX (dev->model->y_offset_calib); - move = (move * (dev->motor.base_ydpi/4)) / MM_PER_INCH; - if(move>20) - { - RIE(gl847_feed (dev, move)); - } - DBG(DBG_io, "%s: move=%f steps\n", __func__, move); - - /* offset calibration is always done in color mode */ - channels = 3; - depth=16; - used_res=sanei_genesys_compute_dpihw(dev, sensor, dev->settings.xres); - Sensor_Profile* sensor_profile=get_sensor_profile(dev->model->ccd_type, used_res); - num_pixels = (sensor.sensor_pixels*used_res)/sensor.optical_res; - - /* initial calibration reg values */ - regs = dev->reg; - - SetupParams params; - params.xres = used_res; - params.yres = used_res; - params.startx = 0; - params.starty = 0; - params.pixels = num_pixels; - params.lines = 1; - params.depth = depth; - params.channels = channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - params.color_filter = dev->settings.color_filter; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - status = gl847_init_scan_regs(dev, sensor, ®s, params); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - total_size = num_pixels * channels * (depth/8) * 1; /* colors * bytes_per_color * scan lines */ - std::vector<uint8_t> line(total_size); - - /* initial loop values and boundaries */ - exp[0]=sensor_profile->expr; - exp[1]=sensor_profile->expg; - exp[2]=sensor_profile->expb; - - 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); - do - { - /* set up exposure */ - sanei_genesys_set_double(®s,REG_EXPR,exp[0]); - sanei_genesys_set_double(®s,REG_EXPG,exp[1]); - sanei_genesys_set_double(®s,REG_EXPB,exp[2]); - - /* write registers and scan data */ - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - - DBG(DBG_info, "%s: starting line reading\n", __func__); - RIE(gl847_begin_scan(dev, sensor, ®s, SANE_TRUE)); - RIE(sanei_genesys_read_data_from_scanner(dev, line.data(), total_size)); - - /* stop scanning */ - RIE(gl847_stop_action (dev)); - - if (DBG_LEVEL >= DBG_data) - { - char fn[30]; - snprintf(fn, 30, "gl847_led_%02d.pnm", turn); - sanei_genesys_write_pnm_file(fn, line.data(), 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 = SANE_TRUE; - for(i=0;i<3;i++) - { - if(avg[i]<bottom[i]) - { - exp[i]=(exp[i]*bottom[i])/avg[i]; - acceptable = SANE_FALSE; - } - if(avg[i]>top[i]) - { - exp[i]=(exp[i]*top[i])/avg[i]; - acceptable = SANE_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 */ - sanei_genesys_set_double(&dev->reg,REG_EXPR,exp[0]); - sanei_genesys_set_double(&dev->reg,REG_EXPG,exp[1]); - sanei_genesys_set_double(&dev->reg,REG_EXPB,exp[2]); - - /* store in this struct since it is the one used by cache calibration */ - sensor.exposure.red = exp[0]; - sensor.exposure.green = exp[1]; - sensor.exposure.blue = exp[2]; - - /* go back home */ - if(move>20) - { - status=gl847_slow_back_home (dev, SANE_TRUE); - } - - DBGCOMPLETED; - return status; -} - -/** - * set up GPIO/GPOE for idle state - */ -static SANE_Status -gl847_init_gpio (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - int idx=0; - - DBGSTART; - - /* search GPIO profile */ - while(gpios[idx].sensor_id!=0 && dev->model->gpo_type!=gpios[idx].sensor_id) - { - idx++; - } - if(gpios[idx].sensor_id==0) - { - DBG(DBG_error, "%s: failed to find GPIO profile for sensor_id=%d\n", __func__, - dev->model->ccd_type); - return SANE_STATUS_INVAL; - } - - RIE (sanei_genesys_write_register (dev, REGA7, gpios[idx].ra7)); - RIE (sanei_genesys_write_register (dev, REGA6, gpios[idx].ra6)); - - RIE (sanei_genesys_write_register (dev, REG6E, gpios[idx].r6e)); - RIE (sanei_genesys_write_register (dev, REG6C, 0x00)); - - RIE (sanei_genesys_write_register (dev, REG6B, gpios[idx].r6b)); - RIE (sanei_genesys_write_register (dev, REG6C, gpios[idx].r6c)); - RIE (sanei_genesys_write_register (dev, REG6D, gpios[idx].r6d)); - RIE (sanei_genesys_write_register (dev, REG6E, gpios[idx].r6e)); - RIE (sanei_genesys_write_register (dev, REG6F, gpios[idx].r6f)); - - RIE (sanei_genesys_write_register (dev, REGA8, gpios[idx].ra8)); - RIE (sanei_genesys_write_register (dev, REGA9, gpios[idx].ra9)); - - DBGCOMPLETED; - return status; -} - -/** - * set memory layout by filling values in dedicated registers - */ -static SANE_Status -gl847_init_memory_layout (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - int idx = 0; - uint8_t val; - - DBG(DBG_proc, "%s\n" , __func__); - - /* point to per model memory layout */ - idx = 0; - if (dev->model->model_id == MODEL_CANON_LIDE_100) - { - idx = 0; - } - if (dev->model->model_id == MODEL_CANON_LIDE_200) - { - idx = 1; - } - if (dev->model->model_id == MODEL_CANON_CANOSCAN_5600F) - { - idx = 2; - } - if (dev->model->model_id == MODEL_CANON_LIDE_700F) - { - idx = 3; - } - - /* CLKSET nd DRAMSEL */ - val = layouts[idx].dramsel; - RIE (sanei_genesys_write_register (dev, REG0B, 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 data. */ - /* values must be multiplied by 8192=0x4000 to give address on AHB */ - /* R-Channel shading bank0 address setting for CIS */ - sanei_genesys_write_register (dev, 0xd0, layouts[idx].rd0); - /* G-Channel shading bank0 address setting for CIS */ - sanei_genesys_write_register (dev, 0xd1, layouts[idx].rd1); - /* B-Channel shading bank0 address setting for CIS */ - sanei_genesys_write_register (dev, 0xd2, layouts[idx].rd2); - - /* setup base address for scanned data. */ - /* values must be multiplied by 1024*2=0x0800 to give address on AHB */ - /* R-Channel ODD image buffer 0x0124->0x92000 */ - /* size for each buffer is 0x16d*1k word */ - sanei_genesys_write_register (dev, 0xe0, layouts[idx].re0); - sanei_genesys_write_register (dev, 0xe1, layouts[idx].re1); - /* R-Channel ODD image buffer end-address 0x0291->0x148800 => size=0xB6800*/ - sanei_genesys_write_register (dev, 0xe2, layouts[idx].re2); - sanei_genesys_write_register (dev, 0xe3, layouts[idx].re3); - - /* R-Channel EVEN image buffer 0x0292 */ - sanei_genesys_write_register (dev, 0xe4, layouts[idx].re4); - sanei_genesys_write_register (dev, 0xe5, layouts[idx].re5); - /* R-Channel EVEN image buffer end-address 0x03ff*/ - sanei_genesys_write_register (dev, 0xe6, layouts[idx].re6); - sanei_genesys_write_register (dev, 0xe7, layouts[idx].re7); - - /* same for green, since CIS, same addresses */ - sanei_genesys_write_register (dev, 0xe8, layouts[idx].re0); - sanei_genesys_write_register (dev, 0xe9, layouts[idx].re1); - sanei_genesys_write_register (dev, 0xea, layouts[idx].re2); - sanei_genesys_write_register (dev, 0xeb, layouts[idx].re3); - sanei_genesys_write_register (dev, 0xec, layouts[idx].re4); - sanei_genesys_write_register (dev, 0xed, layouts[idx].re5); - sanei_genesys_write_register (dev, 0xee, layouts[idx].re6); - sanei_genesys_write_register (dev, 0xef, layouts[idx].re7); - -/* same for blue, since CIS, same addresses */ - sanei_genesys_write_register (dev, 0xf0, layouts[idx].re0); - sanei_genesys_write_register (dev, 0xf1, layouts[idx].re1); - sanei_genesys_write_register (dev, 0xf2, layouts[idx].re2); - sanei_genesys_write_register (dev, 0xf3, layouts[idx].re3); - sanei_genesys_write_register (dev, 0xf4, layouts[idx].re4); - sanei_genesys_write_register (dev, 0xf5, layouts[idx].re5); - sanei_genesys_write_register (dev, 0xf6, layouts[idx].re6); - sanei_genesys_write_register (dev, 0xf7, layouts[idx].re7); - - DBGCOMPLETED; - return status; -} - -/* * - * initialize ASIC from power on condition - */ -static SANE_Status -gl847_boot (Genesys_Device * dev, SANE_Bool cold) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - - DBGSTART; - - /* reset ASIC if cold boot */ - if(cold) - { - RIE (sanei_genesys_write_register (dev, 0x0e, 0x01)); - RIE (sanei_genesys_write_register (dev, 0x0e, 0x00)); - } - - /* test CHKVER */ - RIE (sanei_genesys_read_register (dev, REG40, &val)); - if (val & REG40_CHKVER) - { - RIE (sanei_genesys_read_register (dev, 0x00, &val)); - DBG(DBG_info, "%s: reported version for genesys chip is 0x%02x\n", __func__, val); - } - - /* Set default values for registers */ - gl847_init_registers (dev); - - /* Write initial registers */ - RIE (dev->model->cmd_set->bulk_write_register(dev, dev->reg)); - - /* Enable DRAM by setting a rising edge on bit 3 of reg 0x0b */ - val = dev->reg.find_reg(0x0b).value & REG0B_DRAMSEL; - val = (val | REG0B_ENBDRAM); - RIE (sanei_genesys_write_register (dev, REG0B, val)); - dev->reg.find_reg(0x0b).value = val; - - /* CIS_LINE */ - SETREG (0x08, REG08_CIS_LINE); - RIE (sanei_genesys_write_register (dev, 0x08, dev->reg.find_reg(0x08).value)); - - /* set up end access */ - RIE (sanei_genesys_write_0x8c (dev, 0x10, 0x0b)); - RIE (sanei_genesys_write_0x8c (dev, 0x13, 0x0e)); - - /* setup gpio */ - RIE (gl847_init_gpio (dev)); - - /* setup internal memory layout */ - RIE (gl847_init_memory_layout (dev)); - - SETREG (0xf8, 0x01); - RIE (sanei_genesys_write_register (dev, 0xf8, dev->reg.find_reg(0xf8).value)); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/** - * initialize backend and ASIC : registers, motor tables, and gamma tables - * then ensure scanner's head is at home - */ -static SANE_Status gl847_init (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - - DBG_INIT (); - DBGSTART; - - status=sanei_genesys_asic_init(dev, 0); - - DBGCOMPLETED; - return status; -} - -static SANE_Status -gl847_update_hardware_sensors (Genesys_Scanner * s) -{ - /* do what is needed to get a new set of events, but try to not lose - any of them. - */ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - uint8_t scan, file, email, copy; - switch(s->dev->model->gpo_type) - { - case GPO_CANONLIDE700: - scan=0x04; - file=0x02; - email=0x01; - copy=0x08; - break; - default: - scan=0x01; - file=0x02; - email=0x04; - copy=0x08; - } - RIE (sanei_genesys_read_register (s->dev, REG6D, &val)); - - 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); - - return status; -} - -/** @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 SANE_TRUE if searching forward, SANE_FALSE if searching backward - * @param black SANE_TRUE if searching for a black strip, SANE_FALSE for a white strip - * @return SANE_STATUS_GOOD if a matching strip is found, SANE_STATUS_UNSUPPORTED if not - */ -static SANE_Status -gl847_search_strip (Genesys_Device * dev, const Genesys_Sensor& sensor, - SANE_Bool forward, SANE_Bool black) -{ - unsigned int pixels, lines, channels; - SANE_Status status = SANE_STATUS_GOOD; - Genesys_Register_Set local_reg; - size_t size; - int steps, depth, dpi; - unsigned int pass, count, found, x, y; - char title[80]; - GenesysRegister *r; - - DBG(DBG_proc, "%s %s %s\n", __func__, black ? "black" : "white", forward ? "forward" : "reverse"); - - gl847_set_fe(dev, sensor, AFE_SET); - status = gl847_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to stop: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* set up for a gray scan at lowest dpi */ - dpi = 9600; - for (x = 0; x < MAX_RESOLUTIONS; x++) - { - if (dev->model->xdpi_values[x] > 0 && dev->model->xdpi_values[x] < dpi) - dpi = dev->model->xdpi_values[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; - depth = 8; - pixels = (sensor.sensor_pixels * dpi) / sensor.optical_res; - size = pixels * channels * lines * (depth / 8); - std::vector<uint8_t> data(size); - dev->scanhead_position_in_steps = 0; - - local_reg = dev->reg; - - SetupParams params; - params.xres = dpi; - params.yres = dpi; - params.startx = 0; - params.starty = 0; - params.pixels = pixels; - params.lines = lines; - params.depth = depth; - params.channels = channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = ScanColorMode::GRAY; - params.color_filter = ColorFilter::RED; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA; - - status = gl847_init_scan_regs(dev, sensor, &local_reg, params); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup for scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* set up for reverse or forward */ - r = sanei_genesys_get_address(&local_reg, REG02); - if (forward) - r->value &= ~REG02_MTRREV; - else - r->value |= REG02_MTRREV; - - - status = dev->model->cmd_set->bulk_write_register(dev, local_reg); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: Failed to bulk write registers: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = gl847_begin_scan(dev, sensor, &local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* waits for valid data */ - do - sanei_genesys_test_buffer_empty (dev, &steps); - while (steps); - - /* now we're on target, we can read data */ - status = sanei_genesys_read_data_from_scanner(dev, data.data(), size); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = gl847_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: gl847_stop_action failed\n", __func__); - return status; - } - - pass = 0; - if (DBG_LEVEL >= DBG_data) - { - sprintf(title, "gl847_search_strip_%s_%s%02d.pnm", - black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass); - sanei_genesys_write_pnm_file(title, data.data(), depth, channels, pixels, lines); - } - - /* loop until strip is found or maximum pass number done */ - found = 0; - while (pass < 20 && !found) - { - status = - dev->model->cmd_set->bulk_write_register(dev, local_reg); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: Failed to bulk write registers: %s\n", __func__, - sane_strstatus(status)); - return status; - } - - /* now start scan */ - status = gl847_begin_scan(dev, sensor, &local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* waits for valid data */ - do - sanei_genesys_test_buffer_empty (dev, &steps); - while (steps); - - /* now we're on target, we can read data */ - status = sanei_genesys_read_data_from_scanner(dev, data.data(), size); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = gl847_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: gl847_stop_action failed\n", __func__); - return status; - } - - if (DBG_LEVEL >= DBG_data) - { - sprintf(title, "gl847_search_strip_%s_%s%02d.pnm", - black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass); - sanei_genesys_write_pnm_file(title, data.data(), 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) - { - status = SANE_STATUS_GOOD; - DBG(DBG_info, "%s: %s strip found\n", __func__, black ? "black" : "white"); - } - else - { - status = SANE_STATUS_UNSUPPORTED; - DBG(DBG_info, "%s: %s strip not found\n", __func__, black ? "black" : "white"); - } - - DBGCOMPLETED; - return status; -} - -/** - * 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; -} - -static SANE_Status -gl847_offset_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set& regs) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t reg04; - unsigned int channels, bpp; - int pass = 0, avg, total_size; - int topavg, bottomavg, resolution, lines; - int top, bottom, black_pixels, pixels; - - DBGSTART; - - /* no gain nor offset for AKM AFE */ - RIE (sanei_genesys_read_register (dev, REG04, ®04)); - if ((reg04 & REG04_FESET) == 0x02) - { - DBGCOMPLETED; - return status; - } - - /* offset calibration is always done in color mode */ - channels = 3; - resolution=sensor.optical_res; - dev->calib_pixels = sensor.sensor_pixels; - lines=1; - bpp=8; - pixels= (sensor.sensor_pixels*resolution) / sensor.optical_res; - black_pixels = (sensor.black_pixels * resolution) / sensor.optical_res; - DBG(DBG_io2, "%s: black_pixels=%d\n", __func__, black_pixels); - - SetupParams params; - params.xres = resolution; - params.yres = resolution; - params.startx = 0; - params.starty = 0; - params.pixels = pixels; - params.lines = lines; - params.depth = bpp; - params.channels = channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - params.color_filter = dev->settings.color_filter; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - status = gl847_init_scan_regs(dev, sensor, ®s, params); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - sanei_genesys_set_motor_power(regs, false); - - /* allocate memory for scans */ - total_size = pixels * channels * lines * (bpp/8); /* colors * bytes_per_color * scan lines */ - - 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); - - RIE(gl847_set_fe(dev, sensor, AFE_SET)); - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - DBG(DBG_info, "%s: starting first line reading\n", __func__); - RIE(gl847_begin_scan(dev, sensor, ®s, SANE_TRUE)); - RIE(sanei_genesys_read_data_from_scanner(dev, first_line.data(), total_size)); - if (DBG_LEVEL >= DBG_data) - { - char fn[30]; - snprintf(fn, 30, "gl847_offset%03d.pnm", bottom); - sanei_genesys_write_pnm_file(fn, first_line.data(), bpp, 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); - RIE(gl847_set_fe(dev, sensor, AFE_SET)); - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - DBG(DBG_info, "%s: starting second line reading\n", __func__); - RIE(gl847_begin_scan(dev, sensor, ®s, SANE_TRUE)); - RIE(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 */ - RIE(gl847_set_fe(dev, sensor, AFE_SET)); - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - DBG(DBG_info, "%s: starting second line reading\n", __func__); - RIE(gl847_begin_scan(dev, sensor, ®s, SANE_TRUE)); - RIE(sanei_genesys_read_data_from_scanner (dev, second_line.data(), total_size)); - - if (DBG_LEVEL >= DBG_data) - { - char fn[30]; - snprintf(fn, 30, "gl847_offset%03d.pnm", dev->frontend.get_offset(1)); - sanei_genesys_write_pnm_file(fn, second_line.data(), bpp, 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)); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static SANE_Status -gl847_coarse_gain_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set& regs, int dpi) -{ - int pixels; - int total_size; - uint8_t reg04; - int i, j, channels; - SANE_Status status = SANE_STATUS_GOOD; - int max[3]; - float gain[3],coeff; - int val, code, lines; - int resolution; - int bpp; - - DBG(DBG_proc, "%s: dpi = %d\n", __func__, dpi); - - /* no gain nor offset for AKM AFE */ - RIE (sanei_genesys_read_register (dev, REG04, ®04)); - if ((reg04 & REG04_FESET) == 0x02) - { - DBGCOMPLETED; - return status; - } - - /* coarse gain calibration is always done in color mode */ - channels = 3; - - /* follow CKSEL */ - if(dev->settings.xres<sensor.optical_res) - { - coeff=0.9; - /*resolution=sensor.optical_res/2; */ - resolution=sensor.optical_res; - } - else - { - resolution=sensor.optical_res; - coeff=1.0; - } - lines=10; - bpp=8; - pixels = (sensor.sensor_pixels * resolution) / sensor.optical_res; - - SetupParams params; - params.xres = resolution; - params.yres = resolution; - params.startx = 0; - params.starty = 0; - params.pixels = pixels; - params.lines = lines; - params.depth = bpp; - params.channels = channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - params.color_filter = dev->settings.color_filter; - params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - try { - status = gl847_init_scan_regs(dev, sensor, ®s, params); - } catch (...) { - try { - sanei_genesys_set_motor_power(regs, false); - } catch (...) {} - throw; - } - - sanei_genesys_set_motor_power(regs, false); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - - total_size = pixels * channels * (16/bpp) * lines; - - std::vector<uint8_t> line(total_size); - - RIE(gl847_set_fe(dev, sensor, AFE_SET)); - RIE(gl847_begin_scan(dev, sensor, ®s, SANE_TRUE)); - RIE(sanei_genesys_read_data_from_scanner(dev, line.data(), total_size)); - - if (DBG_LEVEL >= DBG_data) - sanei_genesys_write_pnm_file("gl847_gain.pnm", line.data(), bpp, 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(bpp==16) - { - if (dev->model->is_cis) - val = - line[i * 2 + j * 2 * pixels + 1] * 256 + - line[i * 2 + j * 2 * pixels]; - else - val = - line[i * 2 * channels + 2 * j + 1] * 256 + - line[i * 2 * channels + 2 * j]; - } - else - { - 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] = ((float) sensor.gain_white_ref*coeff) / max[j]; - - /* turn logical gain value into gain code, checking for overflow */ - code = 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); - } - - if (channels == 1) { - dev->frontend.set_gain(0, dev->frontend.get_gain(1)); - dev->frontend.set_gain(2, dev->frontend.get_gain(1)); - } - - RIE (gl847_stop_action (dev)); - - status=gl847_slow_back_home (dev, SANE_TRUE); - - DBGCOMPLETED; - return status; -} - - -/** the gl847 command set */ -static Genesys_Command_Set gl847_cmd_set = { - "gl847-generic", /* the name of this set */ - - nullptr, - - gl847_init, - NULL, /*gl847_init_regs_for_warmup*/ - gl847_init_regs_for_coarse_calibration, - gl847_init_regs_for_shading, - gl847_init_regs_for_scan, - - gl847_get_filter_bit, - gl847_get_lineart_bit, - gl847_get_bitset_bit, - gl847_get_gain4_bit, - gl847_get_fast_feed_bit, - gl847_test_buffer_empty_bit, - gl847_test_motor_flag_bit, - - gl847_set_fe, - gl847_set_powersaving, - gl847_save_power, - - gl847_begin_scan, - gl847_end_scan, - - sanei_genesys_send_gamma_table, - - gl847_search_start_position, - - gl847_offset_calibration, - gl847_coarse_gain_calibration, - gl847_led_calibration, - - NULL, - gl847_slow_back_home, - NULL, /* disable gl847_rewind, see #7 */ - - sanei_genesys_bulk_write_register, - NULL, - sanei_genesys_bulk_read_data, - - gl847_update_hardware_sensors, - - NULL, /* no known gl847 sheetfed scanner */ - NULL, /* no known gl847 sheetfed scanner */ - NULL, /* no known gl847 sheetfed scanner */ - gl847_search_strip, - - sanei_genesys_is_compatible_calibration, - NULL, - gl847_send_shading_data, - gl847_calculate_current_setup, - gl847_boot -}; - -SANE_Status -sanei_gl847_init_cmd_set (Genesys_Device * dev) -{ - dev->model->cmd_set = &gl847_cmd_set; - return SANE_STATUS_GOOD; -} |