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authorJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:13:01 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:13:01 +0100
commitffa8801644a7d53cc1c785e3450f794c07a14eb0 (patch)
tree8d72a18a9a08b9151d12badcb1c78ce06a059f62 /backend/genesys_gl843.cc
parent1687222e1b9e74c89cafbb5910e72d8ec7bfd40f (diff)
New upstream version 1.0.29upstream/1.0.29
Diffstat (limited to 'backend/genesys_gl843.cc')
-rw-r--r--backend/genesys_gl843.cc4415
1 files changed, 0 insertions, 4415 deletions
diff --git a/backend/genesys_gl843.cc b/backend/genesys_gl843.cc
deleted file mode 100644
index a72dc5a..0000000
--- a/backend/genesys_gl843.cc
+++ /dev/null
@@ -1,4415 +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_gl843.h"
-
-#include <string>
-#include <vector>
-
-/****************************************************************************
- Low level function
- ****************************************************************************/
-
-/* ------------------------------------------------------------------------ */
-/* Read and write RAM, registers and AFE */
-/* ------------------------------------------------------------------------ */
-
-/* Set address for writing data */
-static SANE_Status
-gl843_set_buffer_address (Genesys_Device * dev, uint32_t addr)
-{
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_io, "%s: setting address to 0x%05x\n", __func__, addr & 0xffff);
-
- status = sanei_genesys_write_register (dev, 0x5b, ((addr >> 8) & 0xff));
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed while writing high byte: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- status = sanei_genesys_write_register (dev, 0x5c, (addr & 0xff));
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed while writing low byte: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- DBG(DBG_io, "%s: completed\n", __func__);
-
- return status;
-}
-
-/**
- * writes a block of data to RAM
- * @param dev USB device
- * @param addr RAM address to write to
- * @param size size of the chunk of data
- * @param data pointer to the data to write
- */
-static SANE_Status
-write_data (Genesys_Device * dev, uint32_t addr, uint32_t size,
- uint8_t * data)
-{
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBGSTART;
-
- status = gl843_set_buffer_address (dev, addr);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed while setting address for bulk write data: %s\n", __func__,
- sane_strstatus(status));
- return status;
- }
-
- /* write actual data */
- status = sanei_genesys_bulk_write_data(dev, 0x28, data, size);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed while writing bulk write data: %s\n", __func__,
- sane_strstatus(status));
- return status;
- }
-
- /* set back address to 0 */
- status = gl843_set_buffer_address (dev, 0);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed setting to default RAM address: %s\n", __func__,
- sane_strstatus(status));
- return status;
- }
- DBGCOMPLETED;
- return status;
-}
-
-/****************************************************************************
- Mid level functions
- ****************************************************************************/
-
-static SANE_Bool
-gl843_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
-gl843_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
-gl843_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
-gl843_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
-gl843_get_gain4_bit (Genesys_Register_Set * regs)
-{
- GenesysRegister *r = NULL;
-
- r = sanei_genesys_get_address (regs, REG06);
- if (r && (r->value & REG06_GAIN4))
- return SANE_TRUE;
- return SANE_FALSE;
-}
-
-/**
- * compute the step multiplier used
- */
-static int
-gl843_get_step_multiplier (Genesys_Register_Set * regs)
-{
- GenesysRegister *r = NULL;
- int value = 1;
-
- r = sanei_genesys_get_address (regs, REG9D);
- if (r != NULL)
- {
- switch (r->value & 0x0c)
- {
- case 0x04:
- value = 2;
- break;
- case 0x08:
- value = 4;
- break;
- default:
- value = 1;
- }
- }
- DBG(DBG_io, "%s: step multiplier is %d\n", __func__, value);
- return value;
-}
-
-static SANE_Bool
-gl843_test_buffer_empty_bit (SANE_Byte val)
-{
- if (val & REG41_BUFEMPTY)
- return SANE_TRUE;
- return SANE_FALSE;
-}
-
-static SANE_Bool
-gl843_test_motor_flag_bit (SANE_Byte val)
-{
- if (val & REG41_MOTORENB)
- return SANE_TRUE;
- return SANE_FALSE;
-}
-
-/** copy sensor specific settings */
-static void
-gl843_setup_sensor (Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set * regs, int dpi,int flags)
-{
- (void) dpi;
- (void) flags;
-
- DBGSTART;
-
- for (const auto& custom_reg : sensor.custom_regs) {
- regs->set8(custom_reg.address, custom_reg.value);
- }
- if (!(dev->model->flags & GENESYS_FLAG_FULL_HWDPI_MODE)) {
- regs->set8(0x7d, 0x90);
- }
-
- 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
-gl843_init_registers (Genesys_Device * dev)
-{
- // Within this function SENSOR_DEF marker documents that a register is part
- // of the sensors definition and the actual value is set in
- // gl843_setup_sensor().
-
- DBGSTART;
-
- dev->reg.clear();
-
- /* default to KV-SS080 */
- SETREG (0xa2, 0x0f);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0xa2, 0x1f);
- }
- SETREG (0x01, 0x00);
- SETREG (0x02, 0x78);
- SETREG (0x03, 0x1f);
- SETREG (0x04, 0x10);
-
- // fine tune upon device description
- SETREG (0x05, 0x80);
- if (dev->model->model_id == MODEL_HP_SCANJET_G4010 ||
- dev->model->model_id == MODEL_HP_SCANJET_G4050 ||
- dev->model->model_id == MODEL_HP_SCANJET_4850C)
- {
- SETREG (0x05, 0x08);
- }
-
- 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;
- }
-
- // TODO: on 8600F the windows driver turns off GAIN4 which is recommended
- SETREG (0x06, 0xd8); /* SCANMOD=110, PWRBIT and GAIN4 */
- SETREG (0x08, 0x00);
- SETREG (0x09, 0x00);
- SETREG (0x0a, 0x00);
-
- // This register controls clock and RAM settings and is further modified in
- // gl843_boot
- SETREG (0x0b, 0x6a);
-
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x0b, 0x89);
- }
-
- // EXPR[0:15], EXPG[0:15], EXPB[0:15]: Exposure time settings.
- SETREG(0x10, 0x00); // SENSOR_DEF
- SETREG(0x11, 0x00); // SENSOR_DEF
- SETREG(0x12, 0x00); // SENSOR_DEF
- SETREG(0x13, 0x00); // SENSOR_DEF
- SETREG(0x14, 0x00); // SENSOR_DEF
- SETREG(0x15, 0x00); // SENSOR_DEF
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- dev->reg.set16(REG_EXPR, 0x9c40);
- dev->reg.set16(REG_EXPG, 0x9c40);
- dev->reg.set16(REG_EXPB, 0x9c40);
- }
- // CCD signal settings.
- SETREG(0x16, 0x33); // SENSOR_DEF
- SETREG(0x17, 0x1c); // SENSOR_DEF
- SETREG(0x18, 0x10); // SENSOR_DEF
-
- // EXPDMY[0:7]: Exposure time of dummy lines.
- SETREG(0x19, 0x2a); // SENSOR_DEF
-
- // Various CCD clock settings.
- SETREG(0x1a, 0x04); // SENSOR_DEF
- SETREG(0x1b, 0x00); // SENSOR_DEF
- SETREG(0x1c, 0x20); // SENSOR_DEF
- SETREG(0x1d, 0x04); // SENSOR_DEF
-
- SETREG (0x1e, 0x10);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x1e, 0x20);
- }
-
- SETREG (0x1f, 0x01);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x1f, 0xff);
- }
-
- SETREG (0x20, 0x10);
- SETREG (0x21, 0x04);
- SETREG (0x22, 0x01);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x22, 0xc8);
- }
-
- SETREG (0x23, 0x01);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x23, 0xc8);
- }
-
- SETREG (0x24, 0x04);
- SETREG (0x25, 0x00);
- SETREG (0x26, 0x00);
- SETREG (0x27, 0x00);
- SETREG (0x2c, 0x02);
- SETREG (0x2d, 0x58);
- // BWHI[0:7]: high level of black and white threshold
- SETREG (0x2e, 0x80);
- // BWLOW[0:7]: low level of black and white threshold
- SETREG (0x2f, 0x80);
- SETREG (0x30, 0x00);
- SETREG (0x31, 0x14);
- SETREG (0x32, 0x27);
- SETREG (0x33, 0xec);
-
- // DUMMY: CCD dummy and optically black pixel count
- SETREG (0x34, 0x24);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x34, 0x14);
- }
-
- // MAXWD: If available buffer size is less than 2*MAXWD words, then
- // "buffer full" state will be set.
- SETREG (0x35, 0x00);
- SETREG (0x36, 0xff);
- SETREG (0x37, 0xff);
-
- // LPERIOD: Line period or exposure time for CCD or CIS.
- SETREG(0x38, 0x55); // SENSOR_DEF
- SETREG(0x39, 0xf0); // SENSOR_DEF
-
- // FEEDL[0:24]: The number of steps of motor movement.
- SETREG(0x3d, 0x00);
- SETREG (0x3e, 0x00);
- SETREG (0x3f, 0x01);
-
- // Latch points for high and low bytes of R, G and B channels of AFE. If
- // multiple clocks per pixel are consumed, then the setting defines during
- // which clock the corresponding value will be read.
- // RHI[0:4]: The latch point for high byte of R channel.
- // RLOW[0:4]: The latch point for low byte of R channel.
- // GHI[0:4]: The latch point for high byte of G channel.
- // GLOW[0:4]: The latch point for low byte of G channel.
- // BHI[0:4]: The latch point for high byte of B channel.
- // BLOW[0:4]: The latch point for low byte of B channel.
- SETREG(0x52, 0x01); // SENSOR_DEF
- SETREG(0x53, 0x04); // SENSOR_DEF
- SETREG(0x54, 0x07); // SENSOR_DEF
- SETREG(0x55, 0x0a); // SENSOR_DEF
- SETREG(0x56, 0x0d); // SENSOR_DEF
- SETREG(0x57, 0x10); // SENSOR_DEF
-
- // VSMP[0:4]: The position of the image sampling pulse for AFE in cycles.
- // VSMPW[0:2]: The length of the image sampling pulse for AFE in cycles.
- SETREG(0x58, 0x1b); // SENSOR_DEF
-
- SETREG(0x59, 0x00); // SENSOR_DEF
- SETREG(0x5a, 0x40); // SENSOR_DEF
-
- // 0x5b-0x5c: GMMADDR[0:15] address for gamma or motor tables download
- // SENSOR_DEF
-
- // DECSEL[0:2]: The number of deceleratino steps after touching home sensor
- // STOPTIM[0:4]: The stop duration between change of directions in
- // backtracking
- SETREG (0x5e, 0x23);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x5e, 0x1f);
- }
-
- // FMOVDEC: The number of deceleration steps in table 5 for auto-go-home
- SETREG (0x5f, 0x01);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x5f, 0xf0);
- }
-
- // Z1MOD[0:20]
- SETREG (0x60, 0x00);
- SETREG (0x61, 0x00);
- SETREG (0x62, 0x00);
-
- // Z2MOD[0:20]
- SETREG (0x63, 0x00);
- SETREG (0x64, 0x00);
- SETREG (0x65, 0x00);
-
- // STEPSEL[0:1]. Motor movement step mode selection for tables 1-3 in
- // scanning mode.
- // MTRPWM[0:5]. Motor phase PWM duty cycle setting for tables 1-3
- SETREG (0x67, 0x7f);
- // FSTPSEL[0:1]: Motor movement step mode selection for tables 4-5 in
- // command mode.
- // FASTPWM[5:0]: Motor phase PWM duty cycle setting for tables 4-5
- SETREG (0x68, 0x7f);
-
- // FSHDEC[0:7]: The number of deceleration steps after scanning is finished
- // (table 3)
- SETREG (0x69, 0x01);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x69, 64);
- }
-
- // FMOVNO[0:7] The number of acceleration or deceleration steps for fast
- // moving (table 4)
- SETREG (0x6a, 0x04);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x69, 64);
- }
-
- // GPIO-related register bits
- SETREG (0x6b, 0x30);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x6b, 0x72);
- }
-
- // 0x6c, 0x6d, 0x6e, 0x6f are set according to gpio tables. See
- // gl843_init_gpio.
-
- // RSH[0:4]: The position of rising edge of CCD RS signal in cycles
- // RSL[0:4]: The position of falling edge of CCD RS signal in cycles
- // CPH[0:4]: The position of rising edge of CCD CP signal in cycles.
- // CPL[0:4]: The position of falling edge of CCD CP signal in cycles
- SETREG(0x70, 0x01); // SENSOR_DEF
- SETREG(0x71, 0x03); // SENSOR_DEF
- SETREG (0x72, 0x04);
- SETREG (0x73, 0x05);
-
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x70, 0x00);
- SETREG(0x71, 0x02);
- SETREG(0x72, 0x02);
- SETREG(0x73, 0x04);
- }
-
- // CK1MAP[0:17], CK3MAP[0:17], CK4MAP[0:17]: CCD clock bit mapping setting.
- SETREG(0x74, 0x00); // SENSOR_DEF
- SETREG(0x75, 0x00); // SENSOR_DEF
- SETREG(0x76, 0x3c); // SENSOR_DEF
- SETREG(0x77, 0x00); // SENSOR_DEF
- SETREG(0x78, 0x00); // SENSOR_DEF
- SETREG(0x79, 0x9f); // SENSOR_DEF
- SETREG(0x7a, 0x00); // SENSOR_DEF
- SETREG(0x7b, 0x00); // SENSOR_DEF
- SETREG(0x7c, 0x55); // SENSOR_DEF
-
- // various AFE settings
- SETREG(0x7d, 0x00);
-
- // GPOLED[x]: LED vs GPIO settings
- SETREG(0x7e, 0x00);
-
- // BSMPDLY, VSMPDLY
- // LEDCNT[0:1]: Controls led blinking and its period
- SETREG (0x7f, 0x00);
-
- // VRHOME, VRMOVE, VRBACK, VRSCAN: Vref settings of the motor driver IC for
- // moving in various situations.
- SETREG (0x80, 0x00);
-
- if (dev->model->model_id != MODEL_CANON_CANOSCAN_4400F)
- {
- // NOTE: Historical code. None of the following 6 registers are
- // documented in the datasheet. Their default value is 0, so probably it's
- // not a bad idea to leave this here.
- SETREG (0x81, 0x00);
- SETREG (0x82, 0x00);
- SETREG (0x83, 0x00);
- SETREG (0x84, 0x00);
- SETREG (0x85, 0x00);
- SETREG (0x86, 0x00);
- }
-
- SETREG (0x87, 0x00);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x87, 0x02);
- }
-
- // MTRPLS[0:7]: The width of the ADF motor trigger signal pulse.
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x94, 0xff);
- }
-
- // 0x95-0x97: SCANLEN[0:19]: Controls when paper jam bit is set in sheetfed
- // scanners.
-
- // ONDUR[0:15]: The duration of PWM ON phase for LAMP control
- // OFFDUR[0:15]: The duration of PWM OFF phase for LAMP control
- // both of the above are in system clocks
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x98, 0x00);
- SETREG(0x99, 0x00);
- SETREG(0x9a, 0x00);
- SETREG(0x9b, 0x00);
- }
-
- // RMADLY[0:1], MOTLAG, CMODE, STEPTIM, MULDMYLN, IFRS
- SETREG(0x9d, 0x04);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0x9d, 0x08); // additionally sets the multiplier for slope tables
- }
-
-
- // SEL3INV, TGSTIME[0:2], TGWTIME[0:2]
- SETREG (0x9e, 0x00); // SENSOR_DEF
-
- // RFHSET[0:4]: Refresh time of SDRAM in units of 2us
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0xa2, 0x1f);
- }
-
- // 0xa6-0xa9: controls gpio, see gl843_gpio_init
-
- // GPOM9, MULSTOP[0-2], NODECEL, TB3TB1, TB5TB2, FIX16CLK.
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0xab, 0x00);
- }
-
- // VRHOME[3:2], VRMOVE[3:2], VRBACK[3:2]: Vref setting of the motor driver IC
- // for various situations.
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- SETREG(0xac, 0x00);
- }
-
- if (dev->model->model_id != MODEL_CANON_CANOSCAN_8400F)
- {
- SETREG (0x0c, 0x00);
- SETREG (0x94, 0xff);
- SETREG (0xab, 0x50);
- }
-
- if (dev->model->model_id != MODEL_CANON_CANOSCAN_4400F
- && dev->model->model_id != MODEL_CANON_CANOSCAN_8400F)
- {
- SETREG (0xaa, 0x00);
- }
-
- /* G4050 values */
- if (dev->model->model_id == MODEL_HP_SCANJET_G4010 ||
- dev->model->model_id == MODEL_HP_SCANJET_G4050 ||
- dev->model->model_id == MODEL_HP_SCANJET_4850C)
- {
- SETREG (0x03, 0x1d);
- SETREG (0x06, 0xd0); /* SCANMOD=110, PWRBIT and no GAIN4 */
- SETREG (0x06, 0xd8); /* SCANMOD=110, PWRBIT and GAIN4 */
- SETREG (0x0a, 0x18);
- SETREG (0x0b, 0x69);
-
- /* CIS exposure is used for XPA lamp movement */
- SETREG (0x10, 0x2c);
- SETREG (0x11, 0x09);
- SETREG (0x12, 0x22);
- SETREG (0x13, 0xb8);
- SETREG (0x14, 0x10);
- SETREG (0x15, 0xf0);
-
- SETREG (0x6b, 0xf4);
-
- SETREG (0x70, 0x00);
- SETREG (0x71, 0x02);
- SETREG (0x72, 0x00);
- SETREG (0x73, 0x00);
-
- SETREG (0x80, 0x50);
- SETREG (0x9d, 0x08);
- SETREG (0xab, 0x40);
-
- /* XXX STEF XXX TODO move to set for scan */
- SETREG (0x98, 0x03);
- SETREG (0x99, 0x30);
- SETREG (0x9a, 0x01);
- SETREG (0x9b, 0x80);
- SETREG (0xac, 0x00);
- }
-
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_4400F)
- {
- SETREG (0x06, 0xf0); /* SCANMOD=111, PWRBIT and no GAIN4 */
- SETREG (0x0b, 0x69); /* 16M only */
- SETREG (0x1e, 0x20);
- SETREG (0x22, 0xc8);
- SETREG (0x23, 0xc8);
- SETREG (0x5e, 0x3f);
- SETREG (0x5f, 0xf0);
- SETREG (0x6b, 0x72);
- SETREG (0x72, 0x01);
- SETREG (0x73, 0x03);
- SETREG (0x80, 0x0c);
- SETREG (0x87, 0x02); /* MCLOCK -> CK4MAP */
- SETREG (0x9d, 0x08); /* STEPTIM=2 */
- SETREG (0xa2, 0x1f);
- SETREG (0xab, 0x00);
- sanei_genesys_set_double(&dev->reg,REG_EXPR,0x9c40);
- sanei_genesys_set_double(&dev->reg,REG_EXPG,0x9c40);
- sanei_genesys_set_double(&dev->reg,REG_EXPB,0x9c40);
- }
-
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8400F)
- {
- SETREG (0x03, 0x1c);
- SETREG (0x06, 0xd0); /* SCANMOD=110, PWRBIT and no GAIN4 */
- SETREG (0x0a, 0x10);
- SETREG (0x22, 0x50);
- SETREG (0x23, 0x50);
- SETREG (0x5e, 0x85);
- SETREG (0x6b, 0xb1);
- SETREG (0x1e, 0xa0);
- SETREG (0x72, 0x03);
- SETREG (0x73, 0x04);
- SETREG (0x7d, 0x20);
- SETREG (0x80, 0x28);
- SETREG (0x87, 0x02); /* MCLOCK -> CK4MAP */
- SETREG (0x9d, 0x08); /* STEPTIM=2 */
- }
-
- dev->calib_reg = dev->reg;
-
- DBGCOMPLETED;
-}
-
-/* Send slope table for motor movement
- slope_table in machine byte order
- */
-static SANE_Status
-gl843_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);
-
- 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 : 0x4000, 0x4800, 0x5000, 0x5800, 0x6000 */
- /* XXX STEF XXX USB 1.1 ? sanei_genesys_write_0x8c (dev, 0x0f, 0x14); */
- status = write_data (dev, 0x4000 + 0x800 * table_nr, steps * 2, table.data());
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: write data failed writing slope table %d (%s)\n", __func__, table_nr,
- sane_strstatus(status));
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-
-/* Set values of analog frontend */
-static SANE_Status
-gl843_set_fe (Genesys_Device * dev, const Genesys_Sensor& sensor, uint8_t set)
-{
- (void) sensor;
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val;
- int i;
-
- DBG(DBG_proc, "%s (%s)\n", __func__, set == AFE_INIT ? "init" : set == AFE_SET ? "set" : set ==
- AFE_POWER_SAVE ? "powersave" : "huh?");
-
- if (set == AFE_INIT)
- {
- DBG(DBG_proc, "%s(): setting DAC %u\n", __func__, dev->model->dac_type);
- dev->frontend = dev->frontend_initial;
- }
-
- /* check analog frontend type */
- // FIXME: looks like we write to that register with initial data
- RIE (sanei_genesys_read_register (dev, REG04, &val));
- if ((val & REG04_FESET) != 0x00)
- {
- /* for now there is no support for AD fe */
- DBG(DBG_proc, "%s(): unsupported frontend type %d\n", __func__,
- dev->reg.find_reg(0x04).value & REG04_FESET);
- return SANE_STATUS_UNSUPPORTED;
- }
-
- DBG(DBG_proc, "%s(): frontend reset complete\n", __func__);
-
- for (i = 1; i <= 3; i++)
- {
- // FIXME: BUG: we should initialize dev->frontend before first use. Right now it's
- // initialized during genesys_coarse_calibration()
- if (dev->frontend.regs.empty()) {
- status = sanei_genesys_fe_write_data(dev, i, 0x00);
- } else {
- status = sanei_genesys_fe_write_data(dev, i, dev->frontend.regs.get_value(0x00 + i));
- }
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: writing reg[%d] failed: %s\n", __func__, i, sane_strstatus(status));
- return status;
- }
- }
- for (const auto& reg : sensor.custom_fe_regs) {
- status = sanei_genesys_fe_write_data(dev, reg.address, reg.value);
- if (status != SANE_STATUS_GOOD) {
- DBG(DBG_error, "%s: writing reg[%d] failed: %s\n", __func__, i, sane_strstatus(status));
- return status;
- }
- }
-
- for (i = 0; i < 3; i++)
- {
- // FIXME: BUG: see above
- if (dev->frontend.regs.empty()) {
- status = sanei_genesys_fe_write_data(dev, 0x20 + i, 0x00);
- } else {
- status = sanei_genesys_fe_write_data(dev, 0x20 + i, dev->frontend.get_offset(i));
- }
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: writing offset[%d] failed: %s\n", __func__, i,
- sane_strstatus(status));
- return status;
- }
- }
-
- if (dev->model->ccd_type == CCD_KVSS080)
- {
- for (i = 0; i < 3; i++)
- {
- // FIXME: BUG: see above
- if (dev->frontend.regs.empty()) {
- status = sanei_genesys_fe_write_data(dev, 0x24 + i, 0x00);
- } else {
- status = sanei_genesys_fe_write_data(dev, 0x24 + i,
- dev->frontend.regs.get_value(0x24 + i));
- }
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: writing sign[%d] failed: %s\n", __func__, i,
- sane_strstatus(status));
- return status;
- }
- }
- }
-
- for (i = 0; i < 3; i++)
- {
- // FIXME: BUG: see above
- if (dev->frontend.regs.empty()) {
- status = sanei_genesys_fe_write_data(dev, 0x28 + i, 0x00);
- } else {
- status = sanei_genesys_fe_write_data(dev, 0x28 + i, dev->frontend.get_gain(i));
- }
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: writing gain[%d] failed: %s\n", __func__, i, sane_strstatus(status));
- return status;
- }
- }
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-
-static SANE_Status
-gl843_init_motor_regs_scan (Genesys_Device * dev,
- const Genesys_Sensor& sensor,
- Genesys_Register_Set * reg,
- unsigned int exposure,
- 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, coeff;
- unsigned int lincnt;
- uint16_t scan_table[1024];
- uint16_t fast_table[1024];
- int scan_steps,fast_steps, fast_step_type;
- unsigned int feedl,factor,dist;
- GenesysRegister *r;
- uint32_t z1, z2;
-
- DBGSTART;
- DBG(DBG_info, "%s : exposure=%d, scan_yres=%g, scan_step_type=%d, scan_lines=%d, scan_dummy=%d, "
- "feed_steps=%d, scan_power_mode=%d, flags=%x\n", __func__, exposure, scan_yres,
- scan_step_type, scan_lines, scan_dummy, feed_steps, scan_power_mode, flags);
-
- /* get step multiplier */
- factor = gl843_get_step_multiplier (reg);
-
- use_fast_fed = 0;
-
- if((scan_yres>=300 && feed_steps>900) || (flags & MOTOR_FLAG_FEED))
- use_fast_fed=1;
-
- lincnt=scan_lines;
- sanei_genesys_set_triple(reg,REG_LINCNT,lincnt);
- DBG(DBG_io, "%s: lincnt=%d\n", __func__, lincnt);
-
- /* 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;
-
- /* in case of automatic go home, move until home sensor */
- if (flags & MOTOR_FLAG_AUTO_GO_HOME)
- r->value |= REG02_AGOHOME | REG02_NOTHOME;
-
- /* disable backtracking */
- if ((flags & MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE)
- ||(scan_yres>=2400)
- ||(scan_yres>=sensor.optical_res))
- r->value |= REG02_ACDCDIS;
-
- /* scan and backtracking slope table */
- sanei_genesys_slope_table(scan_table,
- &scan_steps,
- scan_yres,
- exposure,
- dev->motor.base_ydpi,
- scan_step_type,
- factor,
- dev->model->motor_type,
- gl843_motors);
- RIE(gl843_send_slope_table (dev, SCAN_TABLE, scan_table, scan_steps*factor));
- RIE(gl843_send_slope_table (dev, BACKTRACK_TABLE, scan_table, scan_steps*factor));
-
- /* STEPNO */
- r = sanei_genesys_get_address (reg, REG_STEPNO);
- r->value = scan_steps;
-
- /* FSHDEC */
- r = sanei_genesys_get_address (reg, REG_FSHDEC);
- r->value = scan_steps;
-
- /* fast table */
- fast_step_type=0;
- if(scan_step_type<=fast_step_type)
- {
- fast_step_type=scan_step_type;
- }
- sanei_genesys_slope_table(fast_table,
- &fast_steps,
- sanei_genesys_get_lowest_ydpi(dev),
- exposure,
- dev->motor.base_ydpi,
- fast_step_type,
- factor,
- dev->model->motor_type,
- gl843_motors);
- RIE(gl843_send_slope_table (dev, STOP_TABLE, fast_table, fast_steps*factor));
- RIE(gl843_send_slope_table (dev, FAST_TABLE, fast_table, fast_steps*factor));
- RIE(gl843_send_slope_table (dev, HOME_TABLE, fast_table, fast_steps*factor));
-
- /* FASTNO */
- r = sanei_genesys_get_address (reg, REG_FASTNO);
- r->value = fast_steps;
-
- /* FMOVNO */
- r = sanei_genesys_get_address (reg, REG_FMOVNO);
- r->value = fast_steps;
-
- /* substract acceleration distance from feedl */
- feedl=feed_steps;
- feedl<<=scan_step_type;
-
- dist = scan_steps;
- if (use_fast_fed)
- {
- dist += fast_steps*2;
- }
- DBG(DBG_io2, "%s: acceleration distance=%d\n", __func__, dist);
-
- /* get sure when don't insane value : XXX STEF XXX in this case we should
- * fall back to single table move */
- if(dist<feedl)
- feedl -= dist;
- else
- feedl = 1;
-
- sanei_genesys_set_triple(reg,REG_FEEDL,feedl);
- DBG(DBG_io, "%s: feedl=%d\n", __func__, feedl);
-
- /* doesn't seem to matter that much */
- sanei_genesys_calculate_zmode2 (use_fast_fed,
- exposure,
- scan_table,
- scan_steps,
- feedl,
- scan_steps,
- &z1,
- &z2);
- if(scan_yres>600)
- {
- z1=0;
- z2=0;
- }
-
- sanei_genesys_set_triple(reg,REG_Z1MOD,z1);
- DBG(DBG_info, "%s: z1 = %d\n", __func__, z1);
-
- sanei_genesys_set_triple(reg,REG_Z2MOD,z2);
- DBG(DBG_info, "%s: z2 = %d\n", __func__, z2);
-
- r = sanei_genesys_get_address (reg, REG1E);
- r->value &= 0xf0; /* 0 dummy lines */
- r->value |= scan_dummy; /* dummy lines */
-
- r = sanei_genesys_get_address (reg, REG67);
- r->value = 0x3f | (scan_step_type << REG67S_STEPSEL);
-
- r = sanei_genesys_get_address (reg, REG68);
- r->value = 0x3f | (scan_step_type << REG68S_FSTPSEL);
-
- /* steps for STOP table */
- r = sanei_genesys_get_address (reg, REG_FMOVDEC);
- r->value = fast_steps;
-
- /* Vref XXX STEF XXX : optical divider or step type ? */
- r = sanei_genesys_get_address (reg, 0x80);
- if (!(dev->model->flags & GENESYS_FLAG_FULL_HWDPI_MODE))
- {
- r->value = 0x50;
- coeff=sensor.optical_res/sanei_genesys_compute_dpihw(dev, sensor, scan_yres);
- if (dev->model->motor_type == MOTOR_KVSS080)
- {
- if(coeff>=1)
- {
- r->value |= 0x05;
- }
- }
- else {
- switch(coeff)
- {
- case 4:
- r->value |= 0x0a;
- break;
- case 2:
- r->value |= 0x0f;
- break;
- case 1:
- r->value |= 0x0f;
- break;
- }
- }
- }
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-
-/** @brief setup optical related registers
- * start and pixels are expressed in optical sensor resolution coordinate
- * space.
- * @param dev device to use
- * @param reg registers to set up
- * @param exposure exposure time to use
- * @param used_res scanning resolution used, may differ from
- * scan's one
- * @param start logical start pixel coordinate
- * @param pixels logical number of pixels to use
- * @param channels number of color channles used (1 or 3)
- * @param depth bit depth of the scan (1, 8 or 16 bits)
- * @param ccd_size_divisor SANE_TRUE specifies how much x coordinates must be shrunk
- * @param color_filter to choose the color channel used in gray scans
- * @param flags to drive specific settings such no calibration, XPA use ...
- * @return SANE_STATUS_GOOD if OK
- */
-static SANE_Status
-gl843_init_optical_regs_scan (Genesys_Device * dev,
- const Genesys_Sensor& sensor,
- Genesys_Register_Set * reg,
- unsigned int exposure,
- int used_res,
- unsigned int start,
- unsigned int pixels,
- int channels,
- int depth,
- unsigned ccd_size_divisor,
- ColorFilter color_filter,
- int flags)
-{
- unsigned int words_per_line;
- unsigned int startx, endx, used_pixels;
- unsigned int dpiset, dpihw, factor;
- unsigned int bytes;
- unsigned int tgtime; /**> exposure time multiplier */
- unsigned int cksel; /**> clock per system pixel time in capturing image */
- GenesysRegister *r;
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_proc, "%s : exposure=%d, used_res=%d, start=%d, pixels=%d, channels=%d, depth=%d, "
- "ccd_size_divisor=%d, flags=%x\n", __func__, exposure, used_res, start, pixels, channels,
- depth, ccd_size_divisor, flags);
-
- /* tgtime */
- tgtime = exposure / 65536 + 1;
- DBG(DBG_io2, "%s: tgtime=%d\n", __func__, tgtime);
-
- /* 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);
- factor=sensor.optical_res/dpihw;
- DBG(DBG_io2, "%s: dpihw=%d (factor=%d)\n", __func__, dpihw, factor);
-
- /* sensor parameters */
- gl843_setup_sensor (dev, sensor, reg, dpihw, flags);
-
- /* resolution is divided according to CKSEL which is known once sensor is set up */
- r = sanei_genesys_get_address (reg, REG18);
- cksel= (r->value & REG18_CKSEL)+1;
- DBG(DBG_io2, "%s: cksel=%d\n", __func__, cksel);
- dpiset = used_res * cksel;
-
- /* start and end coordinate in optical dpi coordinates */
- startx = (start + sensor.dummy_pixel)/cksel;
-
- used_pixels=pixels/cksel;
- endx = startx + used_pixels;
-
- /* pixel coordinate factor correction when used dpihw is not maximal one */
- startx/=factor;
- endx/=factor;
- used_pixels=endx-startx;
-
- /* in case of stagger we have to start at an odd coordinate */
- if ((flags & OPTICAL_FLAG_STAGGER)
- &&((startx & 1)==0))
- {
- startx++;
- endx++;
- }
-
- status = gl843_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;
- if ((flags & OPTICAL_FLAG_DISABLE_SHADING) || (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION))
- {
- r->value &= ~REG01_DVDSET;
- }
- else
- {
- r->value |= REG01_DVDSET;
- }
- if(dpihw>600)
- {
- r->value |= REG01_SHDAREA;
- }
- else
- {
- r->value &= ~REG01_SHDAREA;
- }
-
- r = sanei_genesys_get_address (reg, REG03);
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- r->value |= REG03_AVEENB;
- else {
- r->value &= ~REG03_AVEENB;
- }
-
- // FIXME: we probably don't need to set exposure to registers at this point. It was this way
- // before a refactor.
- sanei_genesys_set_lamp_power(dev, sensor, *reg, !(flags & OPTICAL_FLAG_DISABLE_LAMP));
-
- /* select XPA */
- r->value &= ~REG03_XPASEL;
- if (flags & OPTICAL_FLAG_USE_XPA)
- {
- r->value |= REG03_XPASEL;
- }
- reg->state.is_xpa_on = flags & OPTICAL_FLAG_USE_XPA;
-
- /* BW threshold */
- r = sanei_genesys_get_address (reg, REG2E);
- r->value = dev->settings.threshold;
- r = sanei_genesys_get_address (reg, REG2F);
- 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;
-
- sanei_genesys_set_double(reg, REG_DPISET, dpiset * ccd_size_divisor);
- DBG(DBG_io2, "%s: dpiset used=%d\n", __func__, dpiset * ccd_size_divisor);
-
- sanei_genesys_set_double(reg, REG_STRPIXEL, startx);
- sanei_genesys_set_double(reg, REG_ENDPIXEL, endx);
-
- /* 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 >> 3) + ((words_per_line & 7) ? 1 : 0);
- }
- else
- {
- words_per_line *= bytes;
- }
-
- dev->wpl = words_per_line;
- dev->bpl = words_per_line;
-
- 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);
-
- words_per_line *= channels;
-
- /* MAXWD is expressed in 2 words unit */
- /* nousedspace = (mem_bank_range * 1024 / 256 -1 ) * 4; */
- sanei_genesys_set_triple(reg,REG_MAXWD,(words_per_line)>>1);
- DBG(DBG_io2, "%s: words_per_line used=%d\n", __func__, words_per_line);
-
- sanei_genesys_set_double(reg,REG_LPERIOD,exposure/tgtime);
- DBG(DBG_io2, "%s: exposure used=%d\n", __func__, exposure/tgtime);
-
- r = sanei_genesys_get_address (reg, REG_DUMMY);
- r->value = sensor.dummy_pixel;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-struct ScanSession {
- SetupParams params;
-
- // whether the session setup has been computed via gl843_compute_session()
- bool computed = false;
-
- // whether CCD operates as half-resolution or full resolution at a specific resolution
- unsigned ccd_size_divisor = 1;
-
- // the optical resolution of the scanner.
- unsigned optical_resolution = 0;
-
- // the number of pixels at the optical resolution.
- unsigned optical_pixels = 0;
-
- // the number of bytes in the output of a single line directly from scanner
- unsigned optical_line_bytes = 0;
-
- // the resolution of the output data.
- unsigned output_resolution = 0;
-
- // the number of pixels in output data
- unsigned output_pixels = 0;
-
- // the number of bytes in the output of a single line
- unsigned output_line_bytes = 0;
-
- // the number of lines in the output of the scanner. This must be larger than the user
- // requested number due to line staggering and color channel shifting.
- unsigned output_line_count = 0;
-
- // the number of staggered lines (i.e. lines that overlap during scanning due to line being
- // thinner than the CCD element)
- unsigned num_staggered_lines = 0;
-
- // the number of lines that color channels shift due to different physical positions of
- // different color channels
- unsigned max_color_shift_lines = 0;
-
- void assert_computed() const
- {
- if (!computed) {
- throw std::runtime_error("ScanSession is not computed");
- }
- }
-};
-
-static unsigned align_int_up(unsigned num, unsigned alignment)
-{
- unsigned mask = alignment - 1;
- if (num & mask)
- num = (num & ~mask) + alignment;
- return num;
-}
-
-// computes physical parameters for specific scan setup
-static void gl843_compute_session(Genesys_Device* dev, ScanSession& s,
- const Genesys_Sensor& sensor)
-{
- s.params.assert_valid();
- s.ccd_size_divisor = sensor.get_ccd_size_divisor_for_dpi(s.params.xres);
-
- s.optical_resolution = sensor.optical_res / s.ccd_size_divisor;
-
- if (s.params.flags & SCAN_FLAG_USE_OPTICAL_RES) {
- s.output_resolution = s.optical_resolution;
- } else {
- // resolution is choosen from a fixed list and can be used directly
- // unless we have ydpi higher than sensor's maximum one
- if (s.params.xres > s.optical_resolution)
- s.output_resolution = s.optical_resolution;
- else
- s.output_resolution = s.params.xres;
- }
-
- // compute rounded up number of optical pixels
- s.optical_pixels = (s.params.pixels * s.optical_resolution) / s.params.xres;
- if (s.optical_pixels * s.params.xres < s.params.pixels * s.optical_resolution)
- s.optical_pixels++;
-
- // ensure the number of optical pixels is divisible by 2.
- // In quarter-CCD mode optical_pixels is 4x larger than the actual physical number
- s.optical_pixels = align_int_up(s.optical_pixels, 2 * s.ccd_size_divisor);
-
- s.output_pixels =
- (s.optical_pixels * s.output_resolution) / s.optical_resolution;
-
- // Note: staggering is not applied for calibration. Staggering starts at 2400 dpi
- s.num_staggered_lines = 0;
- if ((s.params.yres > 1200) &&
- ((s.params.flags & SCAN_FLAG_IGNORE_LINE_DISTANCE) == 0) &&
- (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE))
- {
- s.num_staggered_lines = (4 * s.params.yres) / dev->motor.base_ydpi;
- }
-
- s.max_color_shift_lines = sanei_genesys_compute_max_shift(dev, s.params.channels,
- s.params.yres, s.params.flags);
-
- s.output_line_count = s.params.lines + s.max_color_shift_lines + s.num_staggered_lines;
-
- s.optical_line_bytes = (s.optical_pixels * s.params.channels * s.params.depth) / 8;
- s.output_line_bytes = (s.output_pixels * s.params.channels * s.params.depth) / 8;
- s.computed = true;
-}
-
-/* set up registers for an actual scan
- *
- * this function sets up the scanner to scan in normal or single line mode
- */
-static SANE_Status gl843_init_scan_regs(Genesys_Device* dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set* reg,
- ScanSession& session)
-{
- session.assert_computed();
-
- int start;
- int move;
- unsigned int oflags, mflags; /**> optical and motor flags */
- int exposure;
-
- int slope_dpi = 0;
- int dummy = 0;
- int scan_step_type = 1;
- int scan_power_mode = 0;
- size_t requested_buffer_size, read_buffer_size;
-
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_info, "%s ", __func__);
- debug_dump(DBG_info, session.params);
-
- DBG(DBG_info, "%s : stagger=%d lines\n", __func__, session.num_staggered_lines);
-
- /* we enable true gray for cis scanners only, and just when doing
- * scan since color calibration is OK for this mode
- */
- oflags = 0;
- if (session.params.flags & SCAN_FLAG_DISABLE_SHADING)
- oflags |= OPTICAL_FLAG_DISABLE_SHADING;
- if (session.params.flags & SCAN_FLAG_DISABLE_GAMMA)
- oflags |= OPTICAL_FLAG_DISABLE_GAMMA;
- if (session.params.flags & SCAN_FLAG_DISABLE_LAMP)
- oflags |= OPTICAL_FLAG_DISABLE_LAMP;
- if (session.params.flags & SCAN_FLAG_CALIBRATION)
- oflags |= OPTICAL_FLAG_DISABLE_DOUBLE;
- if (session.num_staggered_lines)
- oflags |= OPTICAL_FLAG_STAGGER;
- if (session.params.flags & SCAN_FLAG_USE_XPA)
- oflags |= OPTICAL_FLAG_USE_XPA;
-
-
- /* compute scan parameters values */
- /* pixels are allways given at full optical resolution */
- /* use detected left margin and fixed value */
- /* start */
- start = session.params.startx;
-
- dummy = 0;
- /* dummy = 1; XXX STEF XXX */
-
- /* slope_dpi */
- /* cis color scan is effectively a gray scan with 3 gray lines per color line and a FILTER of 0 */
- if (dev->model->is_cis)
- slope_dpi = session.params.yres * session.params.channels;
- else
- slope_dpi = session.params.yres;
- slope_dpi = slope_dpi * (1 + dummy);
-
- /* scan_step_type */
- exposure = sensor.exposure_lperiod;
- if (exposure < 0) {
- throw std::runtime_error("Exposure not defined in sensor definition");
- }
- scan_step_type = sanei_genesys_compute_step_type(gl843_motors, dev->model->motor_type, exposure);
-
- DBG(DBG_info, "%s : exposure=%d pixels\n", __func__, exposure);
- 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 (session.params.flags & SCAN_FLAG_DYNAMIC_LINEART) {
- session.params.depth = 8;
- }
-
- /* no 16 bit gamma for this ASIC */
- if (session.params.depth == 16)
- {
- session.params.flags |= SCAN_FLAG_DISABLE_GAMMA;
- oflags |= OPTICAL_FLAG_DISABLE_GAMMA;
- }
-
- /* now _LOGICAL_ optical values used are known, setup registers */
- status = gl843_init_optical_regs_scan (dev, sensor,
- reg,
- exposure,
- session.output_resolution,
- start,
- session.optical_pixels,
- session.params.channels,
- session.params.depth,
- session.ccd_size_divisor,
- session.params.color_filter,
- oflags);
- if (status != SANE_STATUS_GOOD)
- return status;
-
- /*** motor parameters ***/
-
- /* it seems base_dpi of the G4050 motor is changed above 600 dpi*/
- if (dev->model->motor_type == MOTOR_G4050 && session.params.yres>600)
- {
- dev->ld_shift_r = (dev->model->ld_shift_r*3800)/dev->motor.base_ydpi;
- dev->ld_shift_g = (dev->model->ld_shift_g*3800)/dev->motor.base_ydpi;
- dev->ld_shift_b = (dev->model->ld_shift_b*3800)/dev->motor.base_ydpi;
- }
- else
- {
- dev->ld_shift_r = dev->model->ld_shift_r;
- dev->ld_shift_g = dev->model->ld_shift_g;
- dev->ld_shift_b = dev->model->ld_shift_b;
- }
-
- /* add tl_y to base movement */
- move = session.params.starty;
- DBG(DBG_info, "%s: move=%d steps\n", __func__, move);
-
-
- mflags=0;
- if(session.params.flags & SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE)
- mflags|=MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE;
- if(session.params.flags & SCAN_FLAG_FEEDING)
- mflags|=MOTOR_FLAG_FEED;
- if (session.params.flags & SCAN_FLAG_USE_XPA)
- mflags |= MOTOR_FLAG_USE_XPA;
-
- status = gl843_init_motor_regs_scan (dev, sensor,
- reg,
- exposure,
- slope_dpi,
- scan_step_type,
- dev->model->is_cis ? session.output_line_count * session.params.channels
- : session.output_line_count,
- dummy,
- move,
- scan_power_mode,
- mflags);
- if (status != SANE_STATUS_GOOD)
- return status;
-
- /* since we don't have sheetfed scanners to handle,
- * use huge read buffer */
- /* TODO find the best size according to settings */
- requested_buffer_size = 16 * session.output_line_bytes;
-
- read_buffer_size =
- 2 * requested_buffer_size +
- (session.max_color_shift_lines + session.num_staggered_lines) * session.optical_line_bytes;
-
- 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 * session.params.pixels * session.params.channels *
- session.params.depth) / 8);
-
- dev->read_bytes_left = session.output_line_bytes * session.output_line_count;
-
- 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 = session.params;
- dev->current_setup.pixels = session.output_pixels;
- DBG(DBG_info, "%s: current_setup.pixels=%d\n", __func__, dev->current_setup.pixels);
- dev->current_setup.lines = session.output_line_count;
- dev->current_setup.depth = session.params.depth;
- dev->current_setup.channels = session.params.channels;
- dev->current_setup.exposure_time = exposure;
- dev->current_setup.xres = session.output_resolution;
- dev->current_setup.yres = session.params.yres;
- dev->current_setup.ccd_size_divisor = session.ccd_size_divisor;
- dev->current_setup.stagger = session.num_staggered_lines;
- dev->current_setup.max_shift = session.max_color_shift_lines + session.num_staggered_lines;
-
- dev->total_bytes_read = 0;
- if (session.params.depth == 1) {
- dev->total_bytes_to_read = ((session.params.pixels * session.params.lines) / 8 +
- (((session.params.pixels * session.params.lines) % 8) ? 1 : 0)) *
- session.params.channels;
- } else {
- dev->total_bytes_to_read = session.params.pixels * session.params.lines *
- session.params.channels * (session.params.depth / 8);
- }
-
- DBG(DBG_info, "%s: total bytes to send = %lu\n", __func__, (u_long) dev->total_bytes_to_read);
-
- DBG(DBG_proc, "%s: completed\n", __func__);
- return SANE_STATUS_GOOD;
-}
-
-static void
-gl843_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;
- int stagger;
-
- int max_shift;
-
- int optical_res;
-
- DBG(DBG_info, "%s ", __func__);
- debug_dump(DBG_info, dev->settings);
-
- /* we have 2 domains for ccd: xres below or above half ccd max dpi */
- unsigned ccd_size_divisor = sensor.get_ccd_size_divisor_for_dpi(dev->settings.xres);
-
- /* 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 */
- if(dev->settings.scan_method==ScanMethod::TRANSPARENCY)
- start = SANE_UNFIX (dev->model->x_offset_ta);
- else
- start = SANE_UNFIX (dev->model->x_offset);
-
- start /= ccd_size_divisor;
-
- 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);
-
- /* optical_res */
- optical_res = sensor.optical_res / ccd_size_divisor;
-
- /* stagger */
- if (ccd_size_divisor == 1 && (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);
-
- if (params.xres <= (unsigned) optical_res) {
- used_res = params.xres;
- } else {
- used_res = optical_res;
- }
-
- /* 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) / params.xres;
- DBG(DBG_info, "%s: used_pixels=%d\n", __func__, used_pixels);
-
- /* exposure */
- exposure = sensor.exposure_lperiod;
- if (exposure < 0) {
- throw std::runtime_error("Exposure not defined in sensor definition");
- }
- DBG(DBG_info, "%s : exposure=%d pixels\n", __func__, exposure);
-
- /* it seems base_dpi of the G4050 motor is changed above 600 dpi*/
- if (dev->model->motor_type == MOTOR_G4050 && params.yres>600)
- {
- dev->ld_shift_r = (dev->model->ld_shift_r*3800)/dev->motor.base_ydpi;
- dev->ld_shift_g = (dev->model->ld_shift_g*3800)/dev->motor.base_ydpi;
- dev->ld_shift_b = (dev->model->ld_shift_b*3800)/dev->motor.base_ydpi;
- }
- else
- {
- dev->ld_shift_r = dev->model->ld_shift_r;
- dev->ld_shift_g = dev->model->ld_shift_g;
- dev->ld_shift_b = dev->model->ld_shift_b;
- }
-
- /* scanned area must be enlarged by max color shift needed */
- 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;
- DBG(DBG_info, "%s: current_setup.pixels=%d\n", __func__, dev->current_setup.pixels);
- dev->current_setup.lines = lincnt;
- dev->current_setup.depth = params.depth;
- dev->current_setup.channels = params.channels;
- dev->current_setup.exposure_time = exposure;
- dev->current_setup.xres = used_res;
- dev->current_setup.yres = params.yres;
- dev->current_setup.ccd_size_divisor = ccd_size_divisor;
- dev->current_setup.stagger = stagger;
- dev->current_setup.max_shift = max_shift + stagger;
-
- DBG(DBG_proc, "%s: completed\n", __func__);
-}
-
-/**
- * for fast power saving methods only, like disabling certain amplifiers
- * @param dev device to use
- * @param enable true to set inot powersaving
- * */
-static SANE_Status
-gl843_save_power (Genesys_Device * dev, SANE_Bool enable)
-{
- uint8_t val;
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_proc, "%s: enable = %d\n", __func__, enable);
- if (dev == NULL)
- return SANE_STATUS_INVAL;
-
- /* switch KV-SS080 lamp off */
- if (dev->model->gpo_type == GPO_KVSS080)
- {
- RIE(sanei_genesys_read_register (dev, REG6C, &val));
- if(enable)
- val &= 0xef;
- else
- val |= 0x10;
- RIE(sanei_genesys_write_register(dev,REG6C,val));
- }
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-gl843_set_powersaving (Genesys_Device * dev, int delay /* in minutes */ )
-{
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_proc, "%s (delay = %d)\n", __func__, delay);
- if (dev == NULL)
- return SANE_STATUS_INVAL;
-
- DBGCOMPLETED;
- return status;
-}
-
-static SANE_Status
-gl843_start_action (Genesys_Device * dev)
-{
- return sanei_genesys_write_register (dev, 0x0f, 0x01);
-}
-
-static SANE_Status
-gl843_stop_action_no_move(Genesys_Device* dev, Genesys_Register_Set* reg)
-{
- uint8_t val = sanei_genesys_read_reg_from_set(reg, REG01);
- val &= ~REG01_SCAN;
- sanei_genesys_set_reg_from_set(reg, REG01, val);
- SANE_Status ret = sanei_genesys_write_register(dev, REG01, val);
- sanei_genesys_sleep_ms(100);
- return ret;
-}
-
-static SANE_Status
-gl843_stop_action (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val40, val;
- unsigned int loop;
-
- DBG(DBG_proc, "%s\n", __func__);
-
- status = sanei_genesys_get_status (dev, &val);
- if (DBG_LEVEL >= DBG_io)
- {
- sanei_genesys_print_status (val);
- }
-
- val40 = 0;
- 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));
- DBG(DBG_proc, "%s: completed\n", __func__);
- return status;
- }
-
- /* only stop action if needed */
- if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG))
- {
- DBG(DBG_info, "%s: already stopped\n", __func__);
- DBG(DBG_proc, "%s: completed\n", __func__);
- return SANE_STATUS_GOOD;
- }
-
- /* ends scan 646 */
- val = dev->reg.get8(REG01);
- val &= ~REG01_SCAN;
- dev->reg.set8(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);
- }
- val40 = 0;
- status = sanei_genesys_read_register (dev, 0x40, &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;
-}
-
-static SANE_Status
-gl843_get_paper_sensor (Genesys_Device * dev, SANE_Bool * paper_loaded)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val;
-
- status = sanei_genesys_read_register (dev, REG6D, &val);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read gpio: %s\n", __func__, sane_strstatus(status));
- return status;
- }
- *paper_loaded = (val & 0x1) == 0;
- return SANE_STATUS_GOOD;
-
- return SANE_STATUS_INVAL;
-}
-
-static SANE_Status
-gl843_eject_document (Genesys_Device * dev)
-{
- DBG(DBG_proc, "%s: not implemented \n", __func__);
- if (dev == NULL)
- return SANE_STATUS_INVAL;
- return SANE_STATUS_GOOD;
-}
-
-
-static SANE_Status
-gl843_load_document (Genesys_Device * dev)
-{
- DBG(DBG_proc, "%s: not implemented \n", __func__);
- if (dev == NULL)
- return SANE_STATUS_INVAL;
- return SANE_STATUS_GOOD;
-}
-
-/**
- * detects end of document and adjust current scan
- * to take it into account
- * used by sheetfed scanners
- */
-static SANE_Status
-gl843_detect_document_end (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- SANE_Bool paper_loaded;
- unsigned int scancnt = 0;
- int flines, channels, depth, bytes_remain, sublines,
- bytes_to_flush, lines, sub_bytes, tmp, read_bytes_left;
- DBG(DBG_proc, "%s: begin\n", __func__);
-
- RIE (gl843_get_paper_sensor (dev, &paper_loaded));
-
- /* sheetfed scanner uses home sensor as paper present */
- if ((dev->document == SANE_TRUE) && !paper_loaded)
- {
- DBG(DBG_info, "%s: no more document\n", __func__);
- dev->document = SANE_FALSE;
-
- channels = dev->current_setup.channels;
- depth = dev->current_setup.depth;
- read_bytes_left = (int) dev->read_bytes_left;
- DBG(DBG_io, "%s: read_bytes_left=%d\n", __func__, read_bytes_left);
-
- /* get lines read */
- try {
- status = sanei_genesys_read_scancnt(dev, &scancnt);
- } catch (...) {
- flines = 0;
- }
- if (status != SANE_STATUS_GOOD)
- {
- flines = 0;
- }
- else
- {
- /* compute number of line read */
- tmp = (int) dev->total_bytes_read;
- if (depth == 1 || dev->settings.scan_mode == ScanColorMode::LINEART)
- flines = tmp * 8 / dev->settings.pixels / channels;
- else
- flines = tmp / (depth / 8) / dev->settings.pixels / channels;
-
- /* number of scanned lines, but no read yet */
- flines = scancnt - flines;
-
- DBG(DBG_io, "%s: %d scanned but not read lines\n", __func__, flines);
- }
-
- /* adjust number of bytes to read
- * we need to read the final bytes which are word per line * number of last lines
- * to have doc leaving feeder */
- lines =
- (SANE_UNFIX (dev->model->post_scan) * dev->current_setup.yres) /
- MM_PER_INCH + flines;
- DBG(DBG_io, "%s: adding %d line to flush\n", __func__, lines);
-
- /* number of bytes to read from scanner to get document out of it after
- * end of document dectected by hardware sensor */
- bytes_to_flush = lines * dev->wpl;
-
- /* if we are already close to end of scan, flushing isn't needed */
- if (bytes_to_flush < read_bytes_left)
- {
- /* we take all these step to work around an overflow on some plateforms */
- tmp = (int) dev->total_bytes_read;
- DBG (DBG_io, "%s: tmp=%d\n", __func__, tmp);
- bytes_remain = (int) dev->total_bytes_to_read;
- DBG(DBG_io, "%s: bytes_remain=%d\n", __func__, bytes_remain);
- bytes_remain = bytes_remain - tmp;
- DBG(DBG_io, "%s: bytes_remain=%d\n", __func__, bytes_remain);
-
- /* remaining lines to read by frontend for the current scan */
- if (depth == 1 || dev->settings.scan_mode == ScanColorMode::LINEART)
- {
- flines = bytes_remain * 8 / dev->settings.pixels / channels;
- }
- else
- flines = bytes_remain / (depth / 8)
- / dev->settings.pixels / channels;
- DBG(DBG_io, "%s: flines=%d\n", __func__, flines);
-
- if (flines > lines)
- {
- /* change the value controlling communication with the frontend :
- * total bytes to read is current value plus the number of remaining lines
- * multiplied by bytes per line */
- sublines = flines - lines;
-
- if (depth == 1 || dev->settings.scan_mode == ScanColorMode::LINEART)
- sub_bytes =
- ((dev->settings.pixels * sublines) / 8 +
- (((dev->settings.pixels * sublines) % 8) ? 1 : 0)) *
- channels;
- else
- sub_bytes =
- dev->settings.pixels * sublines * channels * (depth / 8);
-
- dev->total_bytes_to_read -= sub_bytes;
-
- /* then adjust the physical bytes to read */
- if (read_bytes_left > sub_bytes)
- {
- dev->read_bytes_left -= sub_bytes;
- }
- else
- {
- dev->total_bytes_to_read = dev->total_bytes_read;
- dev->read_bytes_left = 0;
- }
-
- DBG(DBG_io, "%s: sublines=%d\n", __func__, sublines);
- DBG(DBG_io, "%s: subbytes=%d\n", __func__, sub_bytes);
- DBG(DBG_io, "%s: total_bytes_to_read=%lu\n", __func__,
- (unsigned long) dev->total_bytes_to_read);
- DBG(DBG_io, "%s: read_bytes_left=%d\n", __func__, read_bytes_left);
- }
- }
- else
- {
- DBG(DBG_io, "%s: no flushing needed\n", __func__);
- }
- }
-
- DBG(DBG_proc, "%s: finished\n", __func__);
- return SANE_STATUS_GOOD;
-}
-
-// enables or disables XPA slider motor
-static SANE_Status gl843_set_xpa_motor_power(Genesys_Device *dev, bool set)
-{
- uint8_t val;
- SANE_Status status=SANE_STATUS_GOOD;
-
- DBGSTART;
-
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) {
-
- if (set) {
- RIE(sanei_genesys_read_register(dev, REG6C, &val));
- val &= ~REG6C_GPIO14;
- if (dev->current_setup.xres >= 2400) {
- val |= REG6C_GPIO10;
- }
- RIE(sanei_genesys_write_register(dev, REG6C, val));
-
- RIE(sanei_genesys_read_register(dev, REGA6, &val));
- val |= REGA6_GPIO17;
- RIE(sanei_genesys_write_register(dev, REGA6,val));
- } else {
- RIE(sanei_genesys_read_register(dev, REG6C, &val));
- val |= REG6C_GPIO14;
- val &= ~REG6C_GPIO10;
- RIE(sanei_genesys_write_register(dev, REG6C, val));
-
- RIE(sanei_genesys_read_register(dev, REGA6, &val));
- val &= ~REGA6_GPIO17;
- RIE(sanei_genesys_write_register(dev, REGA6,val));
- }
- DBGCOMPLETED;
- return status;
- }
-
- if (dev->model->model_id == MODEL_HP_SCANJET_G4050) {
-
- if (set) {
- /* set MULTFILM et GPOADF */
- RIE (sanei_genesys_read_register (dev, REG6B, &val));
- val |=REG6B_MULTFILM|REG6B_GPOADF;
- RIE (sanei_genesys_write_register (dev, REG6B, val));
-
- RIE (sanei_genesys_read_register (dev, REG6C, &val));
- val &= ~REG6C_GPIO15;
- RIE (sanei_genesys_write_register (dev, REG6C, val));
-
- /* Motor power ? No move at all without this one */
- RIE (sanei_genesys_read_register (dev, REGA6, &val));
- val |= REGA6_GPIO20;
- RIE (sanei_genesys_write_register(dev,REGA6,val));
-
- RIE (sanei_genesys_read_register (dev, REGA8, &val));
- val &= ~REGA8_GPO27;
- RIE (sanei_genesys_write_register (dev, REGA8, val));
-
- RIE (sanei_genesys_read_register (dev, REGA9, &val));
- val |= REGA9_GPO32|REGA9_GPO31;
- RIE (sanei_genesys_write_register (dev, REGA9, val));
- } else {
- /* unset GPOADF */
- RIE (sanei_genesys_read_register (dev, REG6B, &val));
- val &= ~REG6B_GPOADF;
- RIE (sanei_genesys_write_register (dev, REG6B, val));
-
- RIE (sanei_genesys_read_register (dev, REGA8, &val));
- val |= REGA8_GPO27;
- RIE (sanei_genesys_write_register (dev, REGA8, val));
-
- RIE (sanei_genesys_read_register (dev, REGA9, &val));
- val &= ~REGA9_GPO31;
- RIE (sanei_genesys_write_register (dev, REGA9, val));
- }
- DBGCOMPLETED;
- return status;
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-
-/** @brief light XPA lamp
- * toggle gpios to switch off regular lamp and light on the
- * XPA light
- * @param dev device to set up
- */
-static SANE_Status gl843_set_xpa_lamp_power(Genesys_Device *dev, bool set)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val = 0;
- DBGSTART;
-
- if (set) {
- RIE(sanei_genesys_read_register(dev, REGA6, &val));
-
- // cut regular lamp power
- val &= ~(REGA6_GPIO24 | REGA6_GPIO23);
-
- // set XPA lamp power
- val |= REGA6_GPIO22 | REGA6_GPIO21 | REGA6_GPIO19;
-
- RIE(sanei_genesys_write_register(dev, REGA6, val));
-
- RIE(sanei_genesys_read_register(dev, REGA7, &val));
- val|=REGA7_GPOE24; /* lamp 1 off GPOE 24 */
- val|=REGA7_GPOE23; /* lamp 2 off GPOE 23 */
- val|=REGA7_GPOE22; /* full XPA lamp power */
- RIE(sanei_genesys_write_register(dev, REGA7, val));
- } else {
- RIE(sanei_genesys_read_register(dev, REGA6, &val));
-
- // switch on regular lamp
- val |= REGA6_GPIO23;
-
- // no XPA lamp power (2 bits for level: __11 ____)
- val &= ~(REGA6_GPIO22 | REGA6_GPIO21);
-
- RIE(sanei_genesys_write_register(dev, REGA6, val));
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-/* Send the low-level scan command */
-static SANE_Status
-gl843_begin_scan (Genesys_Device * dev, const Genesys_Sensor& sensor, Genesys_Register_Set * reg,
- SANE_Bool start_motor)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val;
- uint16_t dpiset, dpihw;
-
- DBGSTART;
-
- /* get back the target dpihw */
- sanei_genesys_get_double (reg, REG_DPISET, &dpiset);
- dpihw = sanei_genesys_compute_dpihw(dev, sensor, dpiset);
-
- /* set up GPIO for scan */
- switch(dev->model->gpo_type)
- {
- /* KV case */
- case GPO_KVSS080:
- RIE (sanei_genesys_write_register (dev, REGA9, 0x00));
- RIE (sanei_genesys_write_register (dev, REGA6, 0xf6));
- /* blinking led */
- RIE (sanei_genesys_write_register (dev, 0x7e, 0x04));
- break;
- case GPO_G4050:
- RIE (sanei_genesys_write_register (dev, REGA7, 0xfe));
- RIE (sanei_genesys_write_register (dev, REGA8, 0x3e));
- RIE (sanei_genesys_write_register (dev, REGA9, 0x06));
- switch (dpihw)
- {
- case 1200:
- case 2400:
- case 4800:
- RIE (sanei_genesys_write_register (dev, REG6C, 0x60));
- RIE (sanei_genesys_write_register (dev, REGA6, 0x46));
- break;
- default: /* 600 dpi case */
- RIE (sanei_genesys_write_register (dev, REG6C, 0x20));
- RIE (sanei_genesys_write_register (dev, REGA6, 0x44));
- }
-
- if (reg->state.is_xpa_on && reg->state.is_lamp_on) {
- RIE(gl843_set_xpa_lamp_power(dev, true));
- }
-
- if (reg->state.is_xpa_on) {
- dev->needs_home_ta = SANE_TRUE;
- RIE(gl843_set_xpa_motor_power(dev, true));
- }
-
- /* blinking led */
- RIE (sanei_genesys_write_register (dev, REG7E, 0x01));
- break;
- case GPO_CS8600F:
- if (reg->state.is_xpa_on) {
- dev->needs_home_ta = SANE_TRUE;
- RIE(gl843_set_xpa_motor_power(dev, true));
- }
- break;
- case GPO_CS4400F:
- case GPO_CS8400F:
- default:
- break;
- }
-
- /* clear scan and feed count */
- RIE (sanei_genesys_write_register
- (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT));
-
- /* enable scan and motor */
- RIE (sanei_genesys_read_register (dev, REG01, &val));
- val |= REG01_SCAN;
- RIE (sanei_genesys_write_register (dev, REG01, 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
-gl843_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;
-
- /* post scan gpio */
- RIE(sanei_genesys_write_register(dev,0x7e,0x00));
-
- // turn off XPA lamp if needed
- // BUG: the if condition below probably shouldn't be enabled when XPA is off
- if (reg->state.is_xpa_on || reg->state.is_lamp_on) {
- gl843_set_xpa_lamp_power(dev, false);
- }
-
- if (dev->model->is_sheetfed == SANE_TRUE)
- {
- status = SANE_STATUS_GOOD;
- }
- else /* flat bed scanners */
- {
- status = gl843_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;
-}
-
-/** @brief park XPA lamp
- * park the XPA lamp if needed
- */
-static SANE_Status gl843_park_xpa_lamp (Genesys_Device * dev)
-{
- Genesys_Register_Set local_reg;
- SANE_Status status = SANE_STATUS_GOOD;
- GenesysRegister *r;
- uint8_t val;
- int loop = 0;
-
- DBGSTART;
-
- /* copy scan settings */
- local_reg = dev->reg;
-
- /* set a huge feedl and reverse direction */
- sanei_genesys_set_triple(&local_reg,REG_FEEDL,0xbdcd);
-
- /* clear scan and feed count */
- RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT));
-
- /* set up for reverse and no scan */
- r = sanei_genesys_get_address (&local_reg, REG02);
- r->value |= REG02_MTRREV;
- r = sanei_genesys_get_address (&local_reg, REG01);
- r->value &= ~REG01_SCAN;
-
- /* write to scanner and start action */
- RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg));
- RIE(gl843_set_xpa_motor_power(dev, true));
- try {
- status = gl843_start_action (dev);
- } catch (...) {
- DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status));
- try {
- gl843_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));
- gl843_stop_action (dev);
- /* restore original registers */
- dev->model->cmd_set->bulk_write_register(dev, dev->reg);
- return status;
- }
-
- while (loop < 600) /* do not wait longer then 60 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 (DBG_LEVEL >= DBG_io2)
- {
- sanei_genesys_print_status (val);
- }
-
- if (val & REG41_HOMESNR) /* home sensor */
- {
- DBG(DBG_info, "%s: reached home position\n", __func__);
- DBG(DBG_proc, "%s: finished\n", __func__);
-
- gl843_set_xpa_motor_power(dev, false);
- dev->needs_home_ta = SANE_FALSE;
-
- return SANE_STATUS_GOOD;
- }
- sanei_genesys_sleep_ms(100);
- ++loop;
- }
-
- /* we are not parked here.... should we fail ? */
- DBG(DBG_info, "%s: XPA lamp is not parked\n", __func__);
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-/** @brief Moves the slider to the home (top) position slowly
- * */
-static SANE_Status
-gl843_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home)
-{
- Genesys_Register_Set local_reg;
- SANE_Status status = SANE_STATUS_GOOD;
- GenesysRegister *r;
- uint8_t val;
- float resolution;
- int loop = 0;
-
- DBG(DBG_proc, "%s (wait_until_home = %d)\n", __func__, wait_until_home);
-
- if (dev->needs_home_ta) {
- RIE(gl843_park_xpa_lamp(dev));
- }
-
- /* regular slow back home */
- dev->scanhead_position_in_steps = 0;
-
- /* 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;
- }
- 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);
- }
- if (val & HOMESNR) /* is sensor at home? */
- {
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
- }
-
- local_reg = dev->reg;
- resolution=sanei_genesys_get_lowest_ydpi(dev);
-
- const auto& sensor = sanei_genesys_find_sensor(dev, resolution);
-
- ScanSession session;
- session.params.xres = resolution;
- session.params.yres = resolution;
- session.params.startx = 100;
- session.params.starty = 40000;
- session.params.pixels = 100;
- session.params.lines = 100;
- session.params.depth = 8;
- session.params.channels = 1;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = ScanColorMode::LINEART;
- session.params.color_filter = dev->settings.color_filter;
- session.params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
- gl843_compute_session(dev, session, sensor);
-
- status = gl843_init_scan_regs(dev, sensor, &local_reg, session);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status));
- DBGCOMPLETED;
- return status;
- }
-
- /* clear scan and feed count */
- RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT));
-
- /* set up for reverse and no scan */
- r = sanei_genesys_get_address(&local_reg, REG02);
- r->value |= REG02_MTRREV;
- r = sanei_genesys_get_address(&local_reg, REG01);
- r->value &= ~REG01_SCAN;
-
- RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg));
-
- try {
- status = gl843_start_action (dev);
- } catch (...) {
- DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status));
- try {
- gl843_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));
- gl843_stop_action (dev);
- /* restore original registers */
- dev->model->cmd_set->bulk_write_register(dev, dev->reg);
- return status;
- }
-
- 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 (DBG_LEVEL >= DBG_io2)
- {
- sanei_genesys_print_status (val);
- }
-
- if (val & REG41_HOMESNR) /* home sensor */
- {
- DBG(DBG_info, "%s: reached home position\n", __func__);
- DBG(DBG_proc, "%s: finished\n", __func__);
- 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 */
- gl843_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
-gl843_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);
-
- ScanSession session;
- session.params.xres = dpi;
- session.params.yres = dpi;
- session.params.startx = 0;
- session.params.starty = 0; // we should give a small offset here - ~60 steps
- session.params.pixels = 600;
- session.params.lines = dev->model->search_lines;
- session.params.depth = 8;
- session.params.channels = 1;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = ScanColorMode::GRAY;
- session.params.color_filter = ColorFilter::GREEN;
- session.params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_IGNORE_LINE_DISTANCE |
- SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE;
- gl843_compute_session(dev, session, sensor);
-
- status = gl843_init_scan_regs(dev, sensor, &local_reg, session);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to bulk setup registers: %s\n", __func__, sane_strstatus(status));
- 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));
- return status;
- }
-
- size = dev->read_bytes_left;
-
- std::vector<uint8_t> data(size);
-
- status = gl843_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;
- }
- RIE(gl843_stop_action_no_move(dev, &local_reg));
-
- if (DBG_LEVEL >= DBG_data)
- sanei_genesys_write_pnm_file("gl843_search_position.pnm", data.data(), 8, 1, pixels,
- dev->model->search_lines);
-
- status = gl843_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;
-
- 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
-gl843_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;
-
- DBGSTART;
- 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;
-
- int flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- if (dev->settings.scan_method == ScanMethod::TRANSPARENCY) {
- flags |= SCAN_FLAG_USE_XPA;
- }
-
- ScanSession session;
- session.params.xres = dev->settings.xres;
- session.params.yres = dev->settings.yres;
- session.params.startx = 0;
- session.params.starty = 0;
- session.params.pixels = sensor.optical_res / cksel; // XXX STEF XXX dpi instead of pixels!
- session.params.lines = 20;
- session.params.depth = 16;
- session.params.channels = channels;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = dev->settings.scan_mode;
- session.params.color_filter = dev->settings.color_filter;
- session.params.flags = flags;
- gl843_compute_session(dev, session, sensor);
-
- status = gl843_init_scan_regs(dev, sensor, &regs, session);
-
- 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);
-
- 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
- * */
-static SANE_Status
-gl843_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;
-
- /* prepare local registers */
- local_reg = dev->reg;
-
- resolution=sanei_genesys_get_lowest_ydpi(dev);
-
- const auto& sensor = sanei_genesys_find_sensor(dev, resolution);
-
- ScanSession session;
- session.params.xres = resolution;
- session.params.yres = resolution;
- session.params.startx = 0;
- session.params.starty = steps;
- session.params.pixels = 100;
- session.params.lines = 3;
- session.params.depth = 8;
- session.params.channels = 3;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- session.params.color_filter = ColorFilter::RED;
- session.params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_FEEDING |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
- gl843_compute_session(dev, session, sensor);
-
- status = gl843_init_scan_regs(dev, sensor, &local_reg, session);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status));
- DBGCOMPLETED;
- return status;
- }
-
- /* 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 = gl843_start_action (dev);
- } catch (...) {
- DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status));
- try {
- gl843_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));
- gl843_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));
-
- // looks like the scanner locks up if we scan immediately after feeding
- sanei_genesys_sleep_ms(100);
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status gl843_move_to_ta (Genesys_Device * dev);
-
-/* init registers for shading calibration */
-/* shading calibration is done at dpihw */
-static SANE_Status
-gl843_init_regs_for_shading(Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set& regs)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int move, resolution, dpihw, factor;
- uint16_t strpixel;
-
- DBGSTART;
-
- /* initial calibration reg values */
- regs = dev->reg;
-
- dev->calib_channels = 3;
- if (dev->settings.scan_method == ScanMethod::TRANSPARENCY)
- dev->calib_lines = dev->model->shading_ta_lines;
- else
- dev->calib_lines = dev->model->shading_lines;
- dpihw = sanei_genesys_compute_dpihw_calibration(dev, sensor, dev->settings.xres);
- factor=sensor.optical_res/dpihw;
- resolution=dpihw;
-
- const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution,
- dev->settings.scan_method);
-
- if (dev->settings.scan_method == ScanMethod::TRANSPARENCY &&
- dev->model->model_id == MODEL_CANON_CANOSCAN_8600F &&
- dev->settings.xres == 4800)
- {
- float offset = SANE_UNFIX(dev->model->x_offset_ta);
- offset /= calib_sensor.get_ccd_size_divisor_for_dpi(resolution);
- offset = (offset * calib_sensor.optical_res) / MM_PER_INCH;
-
- unsigned size = SANE_UNFIX(dev->model->x_size_ta);
- size /= calib_sensor.get_ccd_size_divisor_for_dpi(resolution);
- size = (size * calib_sensor.optical_res) / MM_PER_INCH;
-
- dev->calib_pixels_offset = offset;
- dev->calib_pixels = size;
- }
- else
- {
- dev->calib_pixels_offset = 0;
- dev->calib_pixels = calib_sensor.sensor_pixels / factor;
- }
-
- dev->calib_resolution = resolution;
-
- int flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- if (dev->settings.scan_method == ScanMethod::TRANSPARENCY)
- {
- // note: move_to_ta() function has already been called and the sensor is at the
- // transparency adapter
- move = 0; // already at dev->model->y_offset_calib_ta implicitly
- flags |= SCAN_FLAG_USE_XPA;
- }
- else
- move = SANE_UNFIX(dev->model->y_offset_calib);
-
- move = (move * resolution) / MM_PER_INCH;
-
- ScanSession session;
- session.params.xres = resolution;
- session.params.yres = resolution;
- session.params.startx = dev->calib_pixels_offset;
- session.params.starty = move;
- session.params.pixels = dev->calib_pixels;
- session.params.lines = dev->calib_lines;
- session.params.depth = 16;
- session.params.channels = dev->calib_channels;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = dev->settings.scan_mode;
- session.params.color_filter = dev->settings.color_filter;
- session.params.flags = flags;
- gl843_compute_session(dev, session, calib_sensor);
-
- status = gl843_init_scan_regs(dev, calib_sensor, &regs, session);
-
- // the pixel number may be updated to conform to scanner constraints
- dev->calib_pixels = dev->current_setup.pixels;
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- dev->calib_total_bytes_to_read = dev->read_bytes_left;
-
- dev->scanhead_position_in_steps += dev->calib_lines + move;
- sanei_genesys_get_double(&regs,REG_STRPIXEL,&strpixel);
- DBG(DBG_info, "%s: STRPIXEL=%d\n", __func__, strpixel);
-
- 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 set up registers for the actual scan
- */
-static SANE_Status
-gl843_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;
-
- move_dpi = dev->motor.base_ydpi;
-
- flags = 0;
- if (dev->settings.scan_method == ScanMethod::TRANSPARENCY)
- {
- // note: move_to_ta() function has already been called and the sensor is at the
- // transparency adapter
- move = SANE_UNFIX(dev->model->y_offset_ta) - SANE_UNFIX(dev->model->y_offset_calib_ta);
- flags |= SCAN_FLAG_USE_XPA;
- }
- else
- move = SANE_UNFIX(dev->model->y_offset);
-
- move += dev->settings.tl_y;
- move = (move * move_dpi) / MM_PER_INCH;
- DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
-
- /* start */
- if(dev->settings.scan_method==ScanMethod::TRANSPARENCY)
- start = SANE_UNFIX (dev->model->x_offset_ta);
- else
- start = SANE_UNFIX (dev->model->x_offset);
-
- start /= sensor.get_ccd_size_divisor_for_dpi(dev->settings.xres);
- start += dev->settings.tl_x;
- start = (start * sensor.optical_res) / MM_PER_INCH;
-
- /* enable emulated lineart from gray data */
- if(dev->settings.scan_mode == ScanColorMode::LINEART
- && dev->settings.dynamic_lineart)
- {
- flags |= SCAN_FLAG_DYNAMIC_LINEART;
- }
-
- ScanSession session;
- session.params.xres = dev->settings.xres;
- session.params.yres = dev->settings.yres;
- session.params.startx = start;
- session.params.starty = move;
- session.params.pixels = dev->settings.pixels;
- session.params.lines = dev->settings.lines;
- session.params.depth = depth;
- session.params.channels = channels;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = dev->settings.scan_mode;
- session.params.color_filter = dev->settings.color_filter;
- session.params.flags = flags;
- gl843_compute_session(dev, session, sensor);
-
- status = gl843_init_scan_regs(dev, sensor, &dev->reg, session);
-
- if (status != SANE_STATUS_GOOD)
- return status;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-/**
- * This function sends gamma tables to ASIC
- */
-static SANE_Status
-gl843_send_gamma_table(Genesys_Device* dev, const Genesys_Sensor& sensor)
-{
- int size;
- SANE_Status status = SANE_STATUS_GOOD;
- int i;
-
- DBGSTART;
-
- size = 256;
-
- /* allocate temporary gamma tables: 16 bits words, 3 channels */
- std::vector<uint8_t> gamma(size * 2 * 3);
-
- std::vector<uint16_t> rgamma = get_gamma_table(dev, sensor, GENESYS_RED);
- std::vector<uint16_t> ggamma = get_gamma_table(dev, sensor, GENESYS_GREEN);
- std::vector<uint16_t> bgamma = get_gamma_table(dev, sensor, GENESYS_BLUE);
-
- // copy sensor specific's gamma tables
- for (i = 0; i < size; i++) {
- gamma[i * 2 + size * 0 + 0] = rgamma[i] & 0xff;
- gamma[i * 2 + size * 0 + 1] = (rgamma[i] >> 8) & 0xff;
- gamma[i * 2 + size * 2 + 0] = ggamma[i] & 0xff;
- gamma[i * 2 + size * 2 + 1] = (ggamma[i] >> 8) & 0xff;
- gamma[i * 2 + size * 4 + 0] = bgamma[i] & 0xff;
- gamma[i * 2 + size * 4 + 1] = (bgamma[i] >> 8) & 0xff;
- }
-
- /* send address */
- status = gl843_set_buffer_address (dev, 0x0000);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set buffer address: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* send data */
- status = sanei_genesys_bulk_write_data(dev, 0x28, gamma.data(), size * 2 * 3);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to send gamma table: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- DBG(DBG_proc, "%s: completed\n", __func__);
- return SANE_STATUS_GOOD;
-}
-
-/* this function does the led calibration by scanning one line of the calibration
- area below scanner's top on white strip.
-
--needs working coarse/gain
-*/
-static SANE_Status
-gl843_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], avga, avge;
- int turn;
- uint16_t expr, expg, expb;
-
- SANE_Bool acceptable = SANE_FALSE;
-
- DBG(DBG_proc, "%s\n", __func__);
-
- /* offset calibration is always done in color mode */
- channels = 3;
- depth = 16;
- used_res = sensor.optical_res;
-
- auto& calib_sensor = sanei_genesys_find_sensor_for_write(dev, used_res,
- dev->settings.scan_method);
- num_pixels =
- (calib_sensor.sensor_pixels * used_res) / calib_sensor.optical_res;
-
- /* initial calibration reg values */
- regs = dev->reg;
-
- ScanSession session;
- session.params.xres = used_res;
- session.params.yres = dev->motor.base_ydpi;
- session.params.startx = 0;
- session.params.starty = 0;
- session.params.pixels = num_pixels;
- session.params.lines = 1;
- session.params.depth = depth;
- session.params.channels = channels;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- session.params.color_filter = dev->settings.color_filter;
- session.params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
- gl843_compute_session(dev, session, calib_sensor);
-
- status = gl843_init_scan_regs(dev, calib_sensor, &regs, session);
-
- 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 = dev->read_bytes_left;
-
- std::vector<uint8_t> line(total_size);
-
-/*
- we try to get equal bright leds here:
-
- loop:
- average per color
- adjust exposure times
- */
-
- expr = calib_sensor.exposure.red;
- expg = calib_sensor.exposure.green;
- expb = calib_sensor.exposure.blue;
-
- turn = 0;
-
- do
- {
-
- calib_sensor.exposure.red = expr;
- calib_sensor.exposure.green = expg;
- calib_sensor.exposure.blue = expb;
-
- sanei_genesys_set_exposure(regs, calib_sensor.exposure);
-
- RIE(dev->model->cmd_set->bulk_write_register(dev, regs));
-
- DBG(DBG_info, "%s: starting first line reading\n", __func__);
- RIE (gl843_begin_scan(dev, calib_sensor, &regs, SANE_TRUE));
- RIE (sanei_genesys_read_data_from_scanner(dev, line.data(), total_size));
- RIE(gl843_stop_action_no_move(dev, &regs));
-
- if (DBG_LEVEL >= DBG_data)
- {
- char fn[30];
- snprintf(fn, 30, "gl843_led_%02d.pnm", turn);
- sanei_genesys_write_pnm_file(fn, line.data(), depth, channels, num_pixels, 1);
- }
-
- acceptable = SANE_TRUE;
-
- for (j = 0; j < channels; j++)
- {
- avg[j] = 0;
- for (i = 0; i < num_pixels; i++)
- {
- if (dev->model->is_cis)
- val =
- line[i * 2 + j * 2 * num_pixels + 1] * 256 +
- line[i * 2 + j * 2 * num_pixels];
- else
- val =
- line[i * 2 * channels + 2 * j + 1] * 256 +
- line[i * 2 * channels + 2 * j];
- avg[j] += val;
- }
-
- avg[j] /= num_pixels;
- }
-
- DBG(DBG_info, "%s: average: %d,%d,%d\n", __func__, avg[0], avg[1], avg[2]);
-
- acceptable = SANE_TRUE;
-
- if (avg[0] < avg[1] * 0.95 || avg[1] < avg[0] * 0.95 ||
- avg[0] < avg[2] * 0.95 || avg[2] < avg[0] * 0.95 ||
- avg[1] < avg[2] * 0.95 || avg[2] < avg[1] * 0.95)
- acceptable = SANE_FALSE;
-
- if (!acceptable)
- {
- avga = (avg[0] + avg[1] + avg[2]) / 3;
- expr = (expr * avga) / avg[0];
- expg = (expg * avga) / avg[1];
- expb = (expb * avga) / avg[2];
-/*
- keep the resulting exposures below this value.
- too long exposure drives the ccd into saturation.
- we may fix this by relying on the fact that
- we get a striped scan without shading, by means of
- statistical calculation
-*/
- avge = (expr + expg + expb) / 3;
-
- /* don't overflow max exposure */
- if (avge > 3000)
- {
- expr = (expr * 2000) / avge;
- expg = (expg * 2000) / avge;
- expb = (expb * 2000) / avge;
- }
- if (avge < 50)
- {
- expr = (expr * 50) / avge;
- expg = (expg * 50) / avge;
- expb = (expb * 50) / avge;
- }
-
- }
-
- RIE (gl843_stop_action (dev));
-
- turn++;
-
- }
- while (!acceptable && turn < 100);
-
- DBG(DBG_info, "%s: acceptable exposure: %d,%d,%d\n", __func__, expr, expg, expb);
-
- sensor.exposure = calib_sensor.exposure;
-
- gl843_slow_back_home (dev, SANE_TRUE);
-
- DBG(DBG_proc, "%s: completed\n", __func__);
- return status;
-}
-
-
-
-/**
- * average dark pixels of a 8 bits scan of a given channel
- */
-static int
-dark_average_channel (uint8_t * data, unsigned int pixels, unsigned int lines,
- unsigned int channels, unsigned int black, int channel)
-{
- unsigned int i, j, k, count;
- unsigned int avg[3];
- uint8_t val;
-
- /* computes average values on black margin */
- for (k = 0; k < channels; k++)
- {
- avg[k] = 0;
- count = 0;
- // FIXME: start with the second line because the black pixels often have noise on the first
- // line; the cause is probably incorrectly cleaned up previous scan
- for (i = 1; i < lines; i++)
- {
- for (j = 0; j < black; j++)
- {
- val = data[i * channels * pixels + j*channels + k];
- avg[k] += val;
- count++;
- }
- }
- if (count)
- avg[k] /= count;
- DBG(DBG_info, "%s: avg[%d] = %d\n", __func__, k, avg[k]);
- }
- DBG(DBG_info, "%s: average = %d\n", __func__, avg[channel]);
- return avg[channel];
-}
-
-/** @brief calibrate AFE offset
- * Iterate doing scans at target dpi until AFE offset if correct. One
- * color line is scanned at a time. Scanning head doesn't move.
- * @param dev device to calibrate
- */
-static SANE_Status
-gl843_offset_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set& regs)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- unsigned int channels, bpp;
- int pass, total_size, i, resolution, lines;
- int topavg[3], bottomavg[3], avg[3];
- int top[3], bottom[3], black_pixels, pixels, factor, dpihw;
-
- DBGSTART;
-
- /* offset calibration is always done in color mode */
- channels = 3;
- lines = 8;
- bpp = 8;
-
- /* compute divider factor to compute final pixels number */
- dpihw = sanei_genesys_compute_dpihw_calibration(dev, sensor, dev->settings.xres);
- factor = sensor.optical_res / dpihw;
- resolution = dpihw;
-
- const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution,
- dev->settings.scan_method);
-
- int target_pixels = calib_sensor.sensor_pixels / factor;
- int start_pixel = 0;
- black_pixels = calib_sensor.black_pixels / factor;
-
- if (dev->settings.scan_method == ScanMethod::TRANSPARENCY &&
- dev->model->model_id == MODEL_CANON_CANOSCAN_8600F &&
- dev->settings.xres == 4800)
- {
- start_pixel = SANE_UNFIX(dev->model->x_offset_ta);
- start_pixel /= calib_sensor.get_ccd_size_divisor_for_dpi(resolution);
- start_pixel = (start_pixel * calib_sensor.optical_res) / MM_PER_INCH;
-
- target_pixels = SANE_UNFIX(dev->model->x_size_ta);
- target_pixels /= calib_sensor.get_ccd_size_divisor_for_dpi(resolution);
- target_pixels = (target_pixels * calib_sensor.optical_res) / MM_PER_INCH;
- }
-
- int flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- if (dev->settings.scan_method == ScanMethod::TRANSPARENCY)
- {
- flags |= SCAN_FLAG_USE_XPA;
- }
-
- ScanSession session;
- session.params.xres = resolution;
- session.params.yres = resolution;
- session.params.startx = start_pixel;
- session.params.starty = 0;
- session.params.pixels = target_pixels;
- session.params.lines = lines;
- session.params.depth = bpp;
- session.params.channels = channels;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- session.params.color_filter = ColorFilter::RED;
- session.params.flags = flags;
- gl843_compute_session(dev, session, calib_sensor);
- pixels = session.output_pixels;
-
- DBG(DBG_io, "%s: dpihw =%d\n", __func__, dpihw);
- DBG(DBG_io, "%s: factor =%d\n", __func__, factor);
- DBG(DBG_io, "%s: resolution =%d\n", __func__, resolution);
- DBG(DBG_io, "%s: pixels =%d\n", __func__, pixels);
- DBG(DBG_io, "%s: black_pixels=%d\n", __func__, black_pixels);
- status = gl843_init_scan_regs(dev, calib_sensor, &regs, session);
- 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 = dev->read_bytes_left;
-
- std::vector<uint8_t> first_line(total_size);
- std::vector<uint8_t> second_line(total_size);
-
- /* init gain and offset */
- for (i = 0; i < 3; i++)
- {
- bottom[i] = 10;
- dev->frontend.set_offset(i, bottom[i]);
- dev->frontend.set_gain(i, 0);
- }
- RIE(gl843_set_fe(dev, calib_sensor, AFE_SET));
-
- /* scan with obttom AFE settings */
- RIE(dev->model->cmd_set->bulk_write_register(dev, regs));
- DBG(DBG_info, "%s: starting first line reading\n", __func__);
- RIE(gl843_begin_scan(dev, calib_sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner(dev, first_line.data(), total_size));
- RIE(gl843_stop_action_no_move(dev, &regs));
-
- if (DBG_LEVEL >= DBG_data)
- {
- char fn[40];
- snprintf(fn, 40, "gl843_bottom_offset_%03d_%03d_%03d.pnm",
- bottom[0], bottom[1], bottom[2]);
- sanei_genesys_write_pnm_file(fn, first_line.data(), bpp, channels, pixels, lines);
- }
-
- for (i = 0; i < 3; i++)
- {
- bottomavg[i] = dark_average_channel(first_line.data(), pixels, lines, channels, black_pixels, i);
- DBG(DBG_io2, "%s: bottom avg %d=%d\n", __func__, i, bottomavg[i]);
- }
-
- /* now top value */
- for (i = 0; i < 3; i++)
- {
- top[i] = 255;
- dev->frontend.set_offset(i, top[i]);
- }
- RIE(gl843_set_fe(dev, calib_sensor, AFE_SET));
-
- /* scan with top AFE values */
- RIE(dev->model->cmd_set->bulk_write_register(dev, regs));
- DBG(DBG_info, "%s: starting second line reading\n", __func__);
- RIE(gl843_begin_scan(dev, calib_sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size));
- RIE(gl843_stop_action_no_move(dev, &regs));
-
- for (i = 0; i < 3; i++)
- {
- topavg[i] = dark_average_channel(second_line.data(), pixels, lines, channels, black_pixels, i);
- DBG(DBG_io2, "%s: top avg %d=%d\n", __func__, i, topavg[i]);
- }
-
- pass = 0;
-
- std::vector<uint8_t> debug_image;
- size_t debug_image_lines = 0;
- std::string debug_image_info;
-
- /* loop until acceptable level */
- while ((pass < 32)
- && ((top[0] - bottom[0] > 1)
- || (top[1] - bottom[1] > 1) || (top[2] - bottom[2] > 1)))
- {
- pass++;
-
- /* settings for new scan */
- for (i = 0; i < 3; i++)
- {
- if (top[i] - bottom[i] > 1)
- {
- dev->frontend.set_offset(i, (top[i] + bottom[i]) / 2);
- }
- }
- RIE(gl843_set_fe(dev, calib_sensor, AFE_SET));
-
- /* scan with no move */
- RIE(dev->model->cmd_set->bulk_write_register(dev, regs));
- DBG(DBG_info, "%s: starting second line reading\n", __func__);
- RIE(gl843_begin_scan(dev, calib_sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size));
- RIE(gl843_stop_action_no_move(dev, &regs));
-
- if (DBG_LEVEL >= DBG_data)
- {
- char title[100];
- snprintf(title, 100, "lines: %d pixels_per_line: %d offsets[0..2]: %d %d %d\n",
- lines, pixels,
- dev->frontend.get_offset(0),
- dev->frontend.get_offset(1),
- dev->frontend.get_offset(2));
- debug_image_info += title;
- std::copy(second_line.begin(), second_line.end(), std::back_inserter(debug_image));
- debug_image_lines += lines;
- }
-
- for (i = 0; i < 3; i++)
- {
- avg[i] = dark_average_channel(second_line.data(), pixels, lines, channels, black_pixels, i);
- DBG(DBG_info, "%s: avg[%d]=%d offset=%d\n", __func__, i, avg[i],
- dev->frontend.get_offset(i));
- }
-
- /* compute new boundaries */
- for (i = 0; i < 3; i++)
- {
- if (topavg[i] >= avg[i])
- {
- topavg[i] = avg[i];
- top[i] = dev->frontend.get_offset(i);
- }
- else
- {
- bottomavg[i] = avg[i];
- bottom[i] = dev->frontend.get_offset(i);
- }
- }
- }
-
- if (DBG_LEVEL >= DBG_data)
- {
- sanei_genesys_write_file("gl843_offset_all_desc.txt",
- (uint8_t*) debug_image_info.data(), debug_image_info.size());
- sanei_genesys_write_pnm_file("gl843_offset_all.pnm",
- debug_image.data(), bpp, channels, pixels, debug_image_lines);
- }
-
- DBG(DBG_info, "%s: offset=(%d,%d,%d)\n", __func__,
- dev->frontend.get_offset(0),
- dev->frontend.get_offset(1),
- dev->frontend.get_offset(2));
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-
-/* alternative coarse gain calibration
- this on uses the settings from offset_calibration and
- uses only one scanline
- */
-/*
- with offset and coarse calibration we only want to get our input range into
- a reasonable shape. the fine calibration of the upper and lower bounds will
- be done with shading.
- */
-static SANE_Status
-gl843_coarse_gain_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set& regs, int dpi)
-{
- int pixels, factor, dpihw;
- int total_size;
- int i, j, channels;
- SANE_Status status = SANE_STATUS_GOOD;
- int max[3];
- float coeff;
- int val, lines;
- int resolution;
- int bpp;
-
- DBG(DBG_proc, "%s: dpi = %d\n", __func__, dpi);
- dpihw=sanei_genesys_compute_dpihw_calibration(dev, sensor, dpi);
- factor=sensor.optical_res/dpihw;
-
- /* coarse gain calibration is always done in color mode */
- channels = 3;
-
- /* follow CKSEL */
- if (dev->model->ccd_type == CCD_KVSS080)
- {
- if(dev->settings.xres<sensor.optical_res)
- {
- coeff=0.9;
- }
- else
- {
- coeff=1.0;
- }
- }
- else
- {
- coeff=1.0;
- }
- resolution=dpihw;
- lines=10;
- bpp=8;
- int target_pixels = sensor.sensor_pixels / factor;
-
- int flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- if (dev->settings.scan_method == ScanMethod::TRANSPARENCY)
- {
- flags |= SCAN_FLAG_USE_XPA;
- }
-
- const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution,
- dev->settings.scan_method);
-
- ScanSession session;
- session.params.xres = resolution;
- session.params.yres = resolution;
- session.params.startx = 0;
- session.params.starty = 0;
- session.params.pixels = target_pixels;
- session.params.lines = lines;
- session.params.depth = bpp;
- session.params.channels = channels;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- session.params.color_filter = dev->settings.color_filter;
- session.params.flags = flags;
- gl843_compute_session(dev, session, calib_sensor);
- pixels = session.output_pixels;
-
- try {
- status = gl843_init_scan_regs(dev, calib_sensor, &regs, session);
- } 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 = dev->read_bytes_left;
-
- std::vector<uint8_t> line(total_size);
-
- RIE(gl843_set_fe(dev, calib_sensor, AFE_SET));
- RIE(gl843_begin_scan(dev, calib_sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner (dev, line.data(), total_size));
- RIE(gl843_stop_action_no_move(dev, &regs));
-
- if (DBG_LEVEL >= DBG_data)
- sanei_genesys_write_pnm_file("gl843_gain.pnm", line.data(), bpp, channels, pixels, lines);
-
- /* average value on each channel */
- for (j = 0; j < channels; j++)
- {
- max[j] = 0;
- // FIXME: start from the second line because the first line often has artifacts. Probably
- // caused by unclean cleanup of previous scans
- for (i = pixels/4 + pixels; i < (pixels*3/4) + pixels; 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);
-
- /* the flow of data through the frontend ADC is as follows (see e.g. VM8192 datasheet)
- input
- -> apply offset (o = i + 260mV * (DAC[7:0]-127.5)/127.5) ->
- -> apply gain (o = i * 208/(283-PGA[7:0])
- -> ADC
-
- Here we have some input data that was acquired with zero gain (PGA==0).
- We want to compute gain such that the output would approach full ADC range (controlled by
- gain_white_ref).
-
- We want to solve the following for {PGA}:
-
- {input} * 208 / (283 - 0) = {output}
- {input} * 208 / (283 - {PGA}) = {target output}
-
- The solution is the following equation:
-
- {PGA} = 283 * (1 - {output} / {target output})
- */
- float gain = ((float) max[j] / (calib_sensor.gain_white_ref*coeff));
- int code = 283 * (1 - gain);
- 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,
- code);
- }
-
- 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 (gl843_stop_action (dev));
-
- status=gl843_slow_back_home (dev, SANE_TRUE);
-
- DBGCOMPLETED;
- return status;
-}
-
-/*
- * wait for lamp warmup by scanning the same line until difference
- * between 2 scans is below a threshold
- */
-static SANE_Status
-gl843_init_regs_for_warmup (Genesys_Device * dev,
- const Genesys_Sensor& sensor,
- Genesys_Register_Set * reg,
- int *channels, int *total_size)
-{
- int num_pixels;
- SANE_Status status = SANE_STATUS_GOOD;
- int dpihw;
- int resolution;
- int factor;
-
- DBGSTART;
- if (dev == NULL || reg == NULL || channels == NULL || total_size == NULL)
- return SANE_STATUS_INVAL;
-
- /* setup scan */
- *channels=3;
- resolution=600;
- dpihw=sanei_genesys_compute_dpihw_calibration(dev, sensor, resolution);
- resolution=dpihw;
-
- const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution,
- dev->settings.scan_method);
- factor = calib_sensor.optical_res/dpihw;
- num_pixels = calib_sensor.sensor_pixels/(factor*2);
- *total_size = num_pixels * 3 * 1;
-
- *reg = dev->reg;
-
- ScanSession session;
- session.params.xres = resolution;
- session.params.yres = resolution;
- session.params.startx = num_pixels/2;
- session.params.starty = 0;
- session.params.pixels = num_pixels;
- session.params.lines = 1;
- session.params.depth = 8;
- session.params.channels = *channels;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- session.params.color_filter = dev->settings.color_filter;
- session.params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
- gl843_compute_session(dev, session, calib_sensor);
-
- status = gl843_init_scan_regs(dev, calib_sensor, reg, session);
-
- 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(*reg, false);
- RIE(dev->model->cmd_set->bulk_write_register(dev, *reg));
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-/**
- * set up GPIO/GPOE for idle state
-WRITE GPIO[17-21]= GPIO19
-WRITE GPOE[17-21]= GPOE21 GPOE20 GPOE19 GPOE18
-genesys_write_register(0xa8,0x3e)
-GPIO(0xa8)=0x3e
- */
-static SANE_Status
-gl843_init_gpio (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int idx;
-
- DBGSTART;
-
- RIE (sanei_genesys_write_register (dev, REG6E, dev->gpo.enable[0]));
- RIE (sanei_genesys_write_register (dev, REG6F, dev->gpo.enable[1]));
- RIE (sanei_genesys_write_register (dev, REG6C, dev->gpo.value[0]));
- RIE (sanei_genesys_write_register (dev, REG6D, dev->gpo.value[1]));
-
- idx=0;
- while(dev->model->gpo_type != gpios[idx].gpo_type && gpios[idx].gpo_type!=0)
- {
- idx++;
- }
- if (gpios[idx].gpo_type!=0)
- {
- RIE (sanei_genesys_write_register (dev, REGA6, gpios[idx].ra6));
- RIE (sanei_genesys_write_register (dev, REGA7, gpios[idx].ra7));
- RIE (sanei_genesys_write_register (dev, REGA8, gpios[idx].ra8));
- RIE (sanei_genesys_write_register (dev, REGA9, gpios[idx].ra9));
- }
- else
- {
- status=SANE_STATUS_INVAL;
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-
-/* *
- * initialize ASIC from power on condition
- */
-static SANE_Status
-gl843_boot (Genesys_Device * dev, SANE_Bool cold)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val;
-
- DBGSTART;
-
- if(cold)
- {
- RIE (sanei_genesys_write_register (dev, 0x0e, 0x01));
- RIE (sanei_genesys_write_register (dev, 0x0e, 0x00));
- }
-
- if(dev->usb_mode == 1)
- {
- val = 0x14;
- }
- else
- {
- val = 0x11;
- }
- RIE (sanei_genesys_write_0x8c (dev, 0x0f, val));
-
- /* 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 */
- gl843_init_registers (dev);
-
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- // turns on vref control for maximum current of the motor driver
- RIE(sanei_genesys_write_register (dev, REG6B, 0x72));
- }
- else
- {
- RIE(sanei_genesys_write_register (dev, REG6B, 0x02));
- }
-
- /* 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;
-
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- RIE (sanei_genesys_write_0x8c (dev, 0x10, 0xc8));
- }
- else
- {
- RIE (sanei_genesys_write_0x8c (dev, 0x10, 0xb4));
- }
-
- /* CLKSET */
- int clock_freq = REG0B_48MHZ;
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- clock_freq = REG0B_60MHZ;
-
- val = (dev->reg.find_reg(0x0b).value & ~REG0B_CLKSET) | clock_freq;
-
- 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);
-
- if (dev->model->model_id != MODEL_CANON_CANOSCAN_8600F)
- {
- // set up end access
- // FIXME: this is overwritten in gl843_init_gpio
- sanei_genesys_write_register(dev, REGA7, 0x04);
- sanei_genesys_write_register(dev, REGA9, 0x00);
- }
-
- /* set RAM read address */
- RIE (sanei_genesys_write_register (dev, REG29, 0x00));
- RIE (sanei_genesys_write_register (dev, REG2A, 0x00));
- RIE (sanei_genesys_write_register (dev, REG2B, 0x00));
-
- /* setup gpio */
- RIE (gl843_init_gpio (dev));
-
- gl843_feed (dev, 300);
- sanei_genesys_sleep_ms(100);
-
- 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
-gl843_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
-gl843_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;
-
- RIE (sanei_genesys_read_register (s->dev, REG6D, &val));
-
- switch (s->dev->model->gpo_type)
- {
- case GPO_KVSS080:
- s->buttons[BUTTON_SCAN_SW].write((val & 0x04) == 0);
- break;
- case GPO_G4050:
- s->buttons[BUTTON_SCAN_SW].write((val & 0x01) == 0);
- s->buttons[BUTTON_FILE_SW].write((val & 0x02) == 0);
- s->buttons[BUTTON_EMAIL_SW].write((val & 0x04) == 0);
- s->buttons[BUTTON_COPY_SW].write((val & 0x08) == 0);
- break;
- case GPO_CS4400F:
- case GPO_CS8400F:
- default:
- break;
- }
-
- return status;
-}
-
-/** @brief move sensor to transparency adaptor
- * Move sensor to the calibration of the transparency adapator (XPA).
- * @param dev device to use
- */
-static SANE_Status
-gl843_move_to_ta (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- float resolution;
- unsigned int feed;
-
- DBGSTART;
-
- resolution=sanei_genesys_get_lowest_ydpi(dev);
- feed = 16*(SANE_UNFIX (dev->model->y_offset_calib_ta) * resolution) / MM_PER_INCH;
- status = gl843_feed (dev, feed);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to move to XPA calibration area\n", __func__);
- return status;
- }
-
- DBGCOMPLETED;
- 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
-gl843_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;
- GenesysRegister *r;
-
- DBG(DBG_proc, "%s %s %s\n", __func__, black ? "black" : "white", forward ? "forward" : "reverse");
-
- gl843_set_fe(dev, sensor, AFE_SET);
- status = gl843_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 = sanei_genesys_get_lowest_dpi(dev);
- channels = 1;
-
- const auto& calib_sensor = sanei_genesys_find_sensor(dev, dpi, dev->settings.scan_method);
-
- /* 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 = (calib_sensor.sensor_pixels * dpi) / calib_sensor.optical_res;
-
- dev->scanhead_position_in_steps = 0;
-
- local_reg = dev->reg;
-
- ScanSession session;
- session.params.xres = dpi;
- session.params.yres = dpi;
- session.params.startx = 0;
- session.params.starty = 0;
- session.params.pixels = pixels;
- session.params.lines = lines;
- session.params.depth = depth;
- session.params.channels = channels;
- session.params.scan_method = dev->settings.scan_method;
- session.params.scan_mode = ScanColorMode::GRAY;
- session.params.color_filter = ColorFilter::RED;
- session.params.flags = SCAN_FLAG_DISABLE_SHADING | SCAN_FLAG_DISABLE_SHADING;
- gl843_compute_session(dev, session, calib_sensor);
-
- status = gl843_init_scan_regs(dev, calib_sensor, &local_reg, session);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to setup for scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- size = dev->read_bytes_left;
- std::vector<uint8_t> data(size);
-
- /* 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 = gl843_begin_scan(dev, calib_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 = gl843_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: gl843_stop_action failed\n", __func__);
- return status;
- }
-
- pass = 0;
- if (DBG_LEVEL >= DBG_data)
- {
- char fn[40];
- snprintf(fn, 40, "gl843_search_strip_%s_%s%02d.pnm",
- black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass);
- sanei_genesys_write_pnm_file(fn, 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 = gl843_begin_scan(dev, calib_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 = gl843_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: gl843_stop_action failed\n", __func__);
- return status;
- }
-
- if (DBG_LEVEL >= DBG_data)
- {
- char fn[40];
- snprintf(fn, 40, "gl843_search_strip_%s_%s%02d.pnm",
- black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass);
- sanei_genesys_write_pnm_file(fn, 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");
- }
-
- DBG(DBG_proc, "%s: completed\n", __func__);
- return status;
-}
-
-/**
- * Send shading calibration data. The buffer is considered to always hold values
- * for all the channels.
- */
-static SANE_Status
-gl843_send_shading_data (Genesys_Device * dev, const Genesys_Sensor& sensor,
- uint8_t * data, int size)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint32_t final_size, length, i;
- uint8_t *buffer;
- int count,offset;
- unsigned int cksel;
- GenesysRegister *r;
- uint16_t dpiset, strpixel, endpixel, startx, factor;
-
- DBGSTART;
-
- offset=0;
- length=size;
- r = sanei_genesys_get_address(&dev->reg, REG01);
- if(r->value & REG01_SHDAREA)
- {
- /* recompute STRPIXEL used shading calibration so we can
- * compute offset within data for SHDAREA case */
- r = sanei_genesys_get_address(&dev->reg, REG18);
- cksel= (r->value & REG18_CKSEL)+1;
- sanei_genesys_get_double(&dev->reg,REG_DPISET,&strpixel);
- sanei_genesys_get_double(&dev->reg,REG_DPISET,&dpiset);
- factor=sensor.optical_res/sanei_genesys_compute_dpihw(dev, sensor, dpiset);
-
- /* start coordinate in optical dpi coordinates */
- startx = (sensor.dummy_pixel / cksel) / factor;
-
- /* current scan coordinates */
- sanei_genesys_get_double(&dev->reg,REG_STRPIXEL,&strpixel);
- sanei_genesys_get_double(&dev->reg,REG_ENDPIXEL,&endpixel);
-
- if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F)
- {
- int optical_res = sensor.optical_res / dev->current_setup.ccd_size_divisor;
- int dpiset_real = dpiset / dev->current_setup.ccd_size_divisor;
- int half_ccd_factor = optical_res /
- sanei_genesys_compute_dpihw_calibration(dev, sensor, dpiset_real);
- strpixel /= half_ccd_factor;
- endpixel /= half_ccd_factor;
- }
-
- /* 16 bit words, 2 words per color, 3 color channels */
- offset=(strpixel-startx)*2*2*3;
- length=(endpixel-strpixel)*2*2*3;
- DBG(DBG_info, "%s: STRPIXEL=%d, ENDPIXEL=%d, startx=%d\n", __func__, strpixel, endpixel,
- startx);
- }
-
- /* compute and allocate size for final data */
- final_size = ((length+251) / 252) * 256;
- DBG(DBG_io, "%s: final shading size=%04x (length=%d)\n", __func__, final_size, length);
- std::vector<uint8_t> final_data(final_size, 0);
-
- /* copy regular shading data to the expected layout */
- buffer = final_data.data();
- count = 0;
-
- /* loop over calibration data */
- for (i = 0; i < length; i++)
- {
- buffer[count] = data[offset+i];
- count++;
- if ((count % (256*2)) == (252*2))
- {
- count += 4*2;
- }
- }
-
- /* send data */
- status = sanei_genesys_set_buffer_address (dev, 0);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set buffer address: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- status = dev->model->cmd_set->bulk_write_data (dev, 0x3c, final_data.data(), count);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to send shading table: %s\n", __func__, sane_strstatus(status));
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-
-/** the gl843 command set */
-static Genesys_Command_Set gl843_cmd_set = {
- "gl843-generic", /* the name of this set */
-
- [](Genesys_Device* dev) -> bool { (void) dev; return true; },
-
- gl843_init,
- gl843_init_regs_for_warmup,
- gl843_init_regs_for_coarse_calibration,
- gl843_init_regs_for_shading,
- gl843_init_regs_for_scan,
-
- gl843_get_filter_bit,
- gl843_get_lineart_bit,
- gl843_get_bitset_bit,
- gl843_get_gain4_bit,
- gl843_get_fast_feed_bit,
- gl843_test_buffer_empty_bit,
- gl843_test_motor_flag_bit,
-
- gl843_set_fe,
- gl843_set_powersaving,
- gl843_save_power,
-
- gl843_begin_scan,
- gl843_end_scan,
-
- gl843_send_gamma_table,
-
- gl843_search_start_position,
-
- gl843_offset_calibration,
- gl843_coarse_gain_calibration,
- gl843_led_calibration,
-
- NULL,
- gl843_slow_back_home,
- NULL,
-
- sanei_genesys_bulk_write_register,
- sanei_genesys_bulk_write_data,
- sanei_genesys_bulk_read_data,
-
- gl843_update_hardware_sensors,
-
- gl843_load_document,
- gl843_detect_document_end,
- gl843_eject_document,
- gl843_search_strip,
-
- sanei_genesys_is_compatible_calibration,
- gl843_move_to_ta,
- gl843_send_shading_data,
- gl843_calculate_current_setup,
- gl843_boot
-};
-
-SANE_Status
-sanei_gl843_init_cmd_set (Genesys_Device * dev)
-{
- dev->model->cmd_set = &gl843_cmd_set;
- return SANE_STATUS_GOOD;
-}