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sane-project-backends/backend/genesys_low.h

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/* sane - Scanner Access Now Easy.
Copyright (C) 2003 Oliver Rauch
Copyright (C) 2003, 2004 Henning Meier-Geinitz <henning@meier-geinitz.de>
Copyright (C) 2004, 2005 Gerhard Jaeger <gerhard@gjaeger.de>
Copyright (C) 2004-2013 Stéphane Voltz <stef.dev@free.fr>
Copyright (C) 2005-2009 Pierre Willenbrock <pierre@pirsoft.dnsalias.org>
Copyright (C) 2006 Laurent Charpentier <laurent_pubs@yahoo.com>
Parts of the structs have been taken from the gt68xx backend by
Sergey Vlasov <vsu@altlinux.ru> et al.
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.
*/
#ifndef GENESYS_LOW_H
#define GENESYS_LOW_H
#include "../include/sane/config.h"
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <math.h>
#include <stddef.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_MKDIR
#include <sys/stat.h>
#include <sys/types.h>
#endif
#include "../include/sane/sane.h"
#include "../include/sane/sanei.h"
#include "../include/sane/saneopts.h"
#include "../include/sane/sanei_backend.h"
#include "../include/sane/sanei_usb.h"
#include "../include/_stdint.h"
#include <algorithm>
#include <array>
#include <cstring>
#include <functional>
#include <list>
#include <memory>
#include <stdexcept>
#include <string>
#include <vector>
#define DBG_error0 0 /* errors/warnings printed even with devuglevel 0 */
#define DBG_error 1 /* fatal errors */
#define DBG_init 2 /* initialization and scanning time messages */
#define DBG_warn 3 /* warnings and non-fatal errors */
#define DBG_info 4 /* informational messages */
#define DBG_proc 5 /* starting/finishing functions */
#define DBG_io 6 /* io functions */
#define DBG_io2 7 /* io functions that are called very often */
#define DBG_data 8 /* log image data */
/**
* call a function and return on error
*/
#define RIE(function) \
do { status = function; \
if (status != SANE_STATUS_GOOD) \
{ \
DBG(DBG_error, "%s: %s\n", __func__, sane_strstatus (status)); \
return status; \
} \
} while (SANE_FALSE)
#define DBGSTART DBG (DBG_proc, "%s start\n", __func__);
#define DBGCOMPLETED DBG (DBG_proc, "%s completed\n", __func__);
#define FREE_IFNOT_NULL(x) if(x!=NULL) { free(x); x=NULL;}
#define GENESYS_RED 0
#define GENESYS_GREEN 1
#define GENESYS_BLUE 2
/* Flags */
#define GENESYS_FLAG_UNTESTED (1 << 0) /**< Print a warning for these scanners */
#define GENESYS_FLAG_14BIT_GAMMA (1 << 1) /**< use 14bit Gamma table instead of 12 */
#define GENESYS_FLAG_LAZY_INIT (1 << 2) /**< skip extensive ASIC test at init */
#define GENESYS_FLAG_XPA (1 << 3)
#define GENESYS_FLAG_SKIP_WARMUP (1 << 4) /**< skip genesys_warmup() */
/** @brief offset calibration flag
* signals that the scanner does offset calibration. In this case off_calibration() and
* coarse_gain_calibration() functions must be implemented
*/
#define GENESYS_FLAG_OFFSET_CALIBRATION (1 << 5)
#define GENESYS_FLAG_SEARCH_START (1 << 6) /**< do start search before scanning */
#define GENESYS_FLAG_REPARK (1 << 7) /**< repark head (and check for lock) by
moving without scanning */
#define GENESYS_FLAG_DARK_CALIBRATION (1 << 8) /**< do dark calibration */
#define GENESYS_FLAG_STAGGERED_LINE (1 << 9) /**< pixel columns are shifted vertically for hi-res modes */
#define GENESYS_FLAG_MUST_WAIT (1 << 10) /**< tells wether the scanner must wait for the head when parking */
#define GENESYS_FLAG_HAS_UTA (1 << 11) /**< scanner has a transparency adapter */
#define GENESYS_FLAG_DARK_WHITE_CALIBRATION (1 << 12) /**< yet another calibration method. does white and dark shading in one run, depending on a black and a white strip*/
#define GENESYS_FLAG_CUSTOM_GAMMA (1 << 13) /**< allow custom gamma tables */
#define GENESYS_FLAG_NO_CALIBRATION (1 << 14) /**< allow scanners to use skip the calibration, needed for sheetfed scanners */
#define GENESYS_FLAG_HALF_CCD_MODE (1 << 15) /**< scanner has setting for half ccd mode */
#define GENESYS_FLAG_SIS_SENSOR (1 << 16) /**< handling of multi-segments sensors in software */
#define GENESYS_FLAG_SHADING_NO_MOVE (1 << 17) /**< scanner doesn't move sensor during shading calibration */
#define GENESYS_FLAG_SHADING_REPARK (1 << 18) /**< repark head between shading scans */
#define GENESYS_FLAG_FULL_HWDPI_MODE (1 << 19) /**< scanner always use maximum hw dpi to setup the sensor */
#define GENESYS_HAS_NO_BUTTONS 0 /**< scanner has no supported button */
#define GENESYS_HAS_SCAN_SW (1 << 0) /**< scanner has SCAN button */
#define GENESYS_HAS_FILE_SW (1 << 1) /**< scanner has FILE button */
#define GENESYS_HAS_COPY_SW (1 << 2) /**< scanner has COPY button */
#define GENESYS_HAS_EMAIL_SW (1 << 3) /**< scanner has EMAIL button */
#define GENESYS_HAS_PAGE_LOADED_SW (1 << 4) /**< scanner has paper in detection */
#define GENESYS_HAS_OCR_SW (1 << 5) /**< scanner has OCR button */
#define GENESYS_HAS_POWER_SW (1 << 6) /**< scanner has power button */
#define GENESYS_HAS_CALIBRATE (1 << 7) /**< scanner has 'calibrate' software button to start calibration */
#define GENESYS_HAS_EXTRA_SW (1 << 8) /**< scanner has extra function button */
/* USB control message values */
#define REQUEST_TYPE_IN (USB_TYPE_VENDOR | USB_DIR_IN)
#define REQUEST_TYPE_OUT (USB_TYPE_VENDOR | USB_DIR_OUT)
#define REQUEST_REGISTER 0x0c
#define REQUEST_BUFFER 0x04
#define VALUE_BUFFER 0x82
#define VALUE_SET_REGISTER 0x83
#define VALUE_READ_REGISTER 0x84
#define VALUE_WRITE_REGISTER 0x85
#define VALUE_INIT 0x87
#define GPIO_OUTPUT_ENABLE 0x89
#define GPIO_READ 0x8a
#define GPIO_WRITE 0x8b
#define VALUE_BUF_ENDACCESS 0x8c
#define VALUE_GET_REGISTER 0x8e
#define INDEX 0x00
/* todo: used?
#define VALUE_READ_STATUS 0x86
*/
/* Read/write bulk data/registers */
#define BULK_OUT 0x01
#define BULK_IN 0x00
#define BULK_RAM 0x00
#define BULK_REGISTER 0x11
#define BULKOUT_MAXSIZE 0xF000
/* AFE values */
#define AFE_INIT 1
#define AFE_SET 2
#define AFE_POWER_SAVE 4
#define LOWORD(x) ((uint16_t)((x) & 0xffff))
#define HIWORD(x) ((uint16_t)((x) >> 16))
#define LOBYTE(x) ((uint8_t)((x) & 0xFF))
#define HIBYTE(x) ((uint8_t)((x) >> 8))
/* Global constants */
/* TODO: emove this leftover of early backend days */
#define MOTOR_SPEED_MAX 350
#define DARK_VALUE 0
#define PWRBIT 0x80
#define BUFEMPTY 0x40
#define FEEDFSH 0x20
#define SCANFSH 0x10
#define HOMESNR 0x08
#define LAMPSTS 0x04
#define FEBUSY 0x02
#define MOTORENB 0x01
typedef struct Genesys_Register_Set
{
uint16_t address;
uint8_t value;
} Genesys_Register_Set;
/** @brief Data structure to set up analog frontend.
* The analog frontend converts analog value from image sensor to
* digital value. It has its own control registers which are set up
* with this structure. The values are written using sanei_genesys_fe_write_data.
* The actual register addresses they map to depends on the frontend used.
* @see sanei_genesys_fe_write_data
*/
typedef struct
{
uint8_t fe_id; /**< id of the frontend description */
uint8_t reg[4]; /**< values to set up frontend control register, they
usually map to analog register 0x00 to 0x03 */
uint8_t sign[3]; /**< sets the sign of the digital value */
uint8_t offset[3]; /**< offset correction to apply to signal, most often
maps to frontend register 0x20-0x22 */
uint8_t gain[3]; /**< amplification to apply to signal, most often
maps to frontend register 0x28-0x2a */
uint8_t reg2[3]; /**< extra control registers */
} Genesys_Frontend;
template<class T, size_t Size>
struct AssignableArray : public std::array<T, Size> {
AssignableArray() = default;
AssignableArray(const AssignableArray&) = default;
AssignableArray& operator=(const AssignableArray&) = default;
AssignableArray& operator=(std::initializer_list<T> init)
{
if (init.size() != std::array<T, Size>::size())
throw std::runtime_error("An array of incorrect size assigned");
std::copy(init.begin(), init.end(), std::array<T, Size>::begin());
return *this;
}
};
struct Genesys_Sensor {
Genesys_Sensor() = default;
~Genesys_Sensor() = default;
// id of the sensor description
uint8_t sensor_id = 0;
int optical_res = 0;
int black_pixels = 0;
// value of the dummy register
int dummy_pixel = 0;
// last pixel of CCD margin at optical resolution
int CCD_start_xoffset = 0;
// total pixels used by the sensor
int sensor_pixels = 0;
// TA CCD target code (reference gain)
int fau_gain_white_ref = 0;
// CCD target code (reference gain)
int gain_white_ref = 0;
AssignableArray<uint8_t, 4> regs_0x08_0x0b;
// Initial exposure values, EXPR, EXPG and EXPB are contained in 0x10-0x15
AssignableArray<uint8_t, 14> regs_0x10_0x1d;
AssignableArray<uint8_t, 13> regs_0x52_0x5e;
// red, green and blue gamma coefficient for default gamma tables
AssignableArray<float, 3> gamma;
// sensor-specific gamma tables
std::vector<uint16_t> gamma_table[3];
size_t fread(FILE* fp)
{
bool success = true;
success &= 1 == ::fread(&sensor_id, sizeof(sensor_id), 1, fp);
success &= 1 == ::fread(&optical_res, sizeof(optical_res), 1, fp);
success &= 1 == ::fread(&black_pixels, sizeof(black_pixels), 1, fp);
success &= 1 == ::fread(&dummy_pixel, sizeof(dummy_pixel), 1, fp);
success &= 1 == ::fread(&CCD_start_xoffset, sizeof(CCD_start_xoffset), 1, fp);
success &= 1 == ::fread(&sensor_pixels, sizeof(sensor_pixels), 1, fp);
success &= 1 == ::fread(&fau_gain_white_ref, sizeof(fau_gain_white_ref), 1, fp);
success &= 1 == ::fread(&gain_white_ref, sizeof(gain_white_ref), 1, fp);
success &= 1 == ::fread(&regs_0x08_0x0b, sizeof(regs_0x08_0x0b), 1, fp);
success &= 1 == ::fread(&regs_0x10_0x1d, sizeof(regs_0x10_0x1d), 1, fp);
success &= 1 == ::fread(&regs_0x52_0x5e, sizeof(regs_0x52_0x5e), 1, fp);
return success ? 1 : 0;
}
void fwrite(FILE* fp) const
{
::fwrite(&sensor_id, sizeof(sensor_id), 1, fp);
::fwrite(&optical_res, sizeof(optical_res), 1, fp);
::fwrite(&black_pixels, sizeof(black_pixels), 1, fp);
::fwrite(&dummy_pixel, sizeof(dummy_pixel), 1, fp);
::fwrite(&CCD_start_xoffset, sizeof(CCD_start_xoffset), 1, fp);
::fwrite(&sensor_pixels, sizeof(sensor_pixels), 1, fp);
::fwrite(&fau_gain_white_ref, sizeof(fau_gain_white_ref), 1, fp);
::fwrite(&gain_white_ref, sizeof(gain_white_ref), 1, fp);
::fwrite(&regs_0x08_0x0b, sizeof(regs_0x08_0x0b), 1, fp);
::fwrite(&regs_0x10_0x1d, sizeof(regs_0x10_0x1d), 1, fp);
::fwrite(&regs_0x52_0x5e, sizeof(regs_0x52_0x5e), 1, fp);
}
};
typedef struct
{
uint8_t gpo_id; /**< id of the gpo description */
// registers 0x6c and 0x6d on GL841, GL842, GL843, GL846, GL848 and possibly
// others
uint8_t value[2];
// registers 0x6e and 0x6f on GL841, GL842, GL843, GL846, GL848 and possibly
// others
uint8_t enable[2];
} Genesys_Gpo;
typedef struct
{
SANE_Int maximum_start_speed; /* maximum speed allowed when accelerating from standstill. Unit: pixeltime/step */
SANE_Int maximum_speed; /* maximum speed allowed. Unit: pixeltime/step */
SANE_Int minimum_steps; /* number of steps used for default curve */
float g; /* power for non-linear acceleration curves. */
/* vs*(1-i^g)+ve*(i^g) where
vs = start speed, ve = end speed,
i = 0.0 for first entry and i = 1.0 for last entry in default table*/
} Genesys_Motor_Slope;
typedef struct
{
uint8_t motor_id; /**< id of the motor description */
SANE_Int base_ydpi; /* motor base steps. Unit: 1/" */
SANE_Int optical_ydpi; /* maximum resolution in y-direction. Unit: 1/" */
SANE_Int max_step_type; /* maximum step type. 0-2 */
SANE_Int power_mode_count; /* number of power modes*/
Genesys_Motor_Slope slopes[2][3]; /* slopes to derive individual slopes from */
} Genesys_Motor;
typedef enum Genesys_Color_Order
{
COLOR_ORDER_RGB,
COLOR_ORDER_BGR
}
Genesys_Color_Order;
#define MAX_RESOLUTIONS 13
#define MAX_DPI 4
#define GENESYS_GL646 646
#define GENESYS_GL841 841
#define GENESYS_GL843 843
#define GENESYS_GL845 845
#define GENESYS_GL846 846
#define GENESYS_GL847 847
#define GENESYS_GL848 848
#define GENESYS_GL123 123
#define GENESYS_GL124 124
#define GENESYS_MAX_REGS 256
enum Genesys_Model_Type
{
MODEL_UMAX_ASTRA_4500 = 0,
MODEL_CANON_LIDE_50,
MODEL_PANASONIC_KV_SS080,
MODEL_HP_SCANJET_4850C,
MODEL_HP_SCANJET_G4010,
MODEL_HP_SCANJET_G4050,
MODEL_CANON_CANOSCAN_4400F,
MODEL_CANON_CANOSCAN_8400F,
MODEL_CANON_CANOSCAN_8600F,
MODEL_CANON_LIDE_100,
MODEL_CANON_LIDE_110,
MODEL_CANON_LIDE_120,
MODEL_CANON_LIDE_210,
MODEL_CANON_LIDE_220,
MODEL_CANON_CANOSCAN_5600F,
MODEL_CANON_LIDE_700F,
MODEL_CANON_LIDE_200,
MODEL_CANON_LIDE_60,
MODEL_CANON_LIDE_80,
MODEL_HP_SCANJET_2300C,
MODEL_HP_SCANJET_2400C,
MODEL_VISIONEER_STROBE_XP200,
MODEL_HP_SCANJET_3670C,
MODEL_PLUSTEK_OPTICPRO_ST12,
MODEL_PLUSTEK_OPTICPRO_ST24,
MODEL_MEDION_MD5345,
MODEL_VISIONEER_STROBE_XP300,
MODEL_SYSCAN_DOCKETPORT_665,
MODEL_VISIONEER_ROADWARRIOR,
MODEL_SYSCAN_DOCKETPORT_465,
MODEL_VISIONEER_STROBE_XP100_REVISION3,
MODEL_PENTAX_DSMOBILE_600,
MODEL_SYSCAN_DOCKETPORT_467,
MODEL_SYSCAN_DOCKETPORT_685,
MODEL_SYSCAN_DOCKETPORT_485,
MODEL_DCT_DOCKETPORT_487,
MODEL_VISIONEER_7100,
MODEL_XEROX_2400,
MODEL_XEROX_TRAVELSCANNER_100,
MODEL_PLUSTEK_OPTICPRO_3600,
MODEL_HP_SCANJET_N6310,
MODEL_PLUSTEK_OPTICBOOK_3800,
MODEL_CANON_IMAGE_FORMULA_101
};
enum Genesys_Dac_Type
{
DAC_WOLFSON_UMAX = 0,
DAC_WOLFSON_ST12,
DAC_WOLFSON_ST24,
DAC_WOLFSON_5345,
DAC_WOLFSON_HP2400,
DAC_WOLFSON_HP2300,
DAC_CANONLIDE35,
DAC_AD_XP200,
DAC_WOLFSON_XP300,
DAC_WOLFSON_HP3670,
DAC_WOLFSON_DSM600,
DAC_CANONLIDE200,
DAC_KVSS080,
DAC_G4050,
DAC_CANONLIDE110,
DAC_PLUSTEK_3600,
DAC_CANONLIDE700,
DAC_CS8400F,
DAC_CS8600F,
DAC_IMG101,
DAC_PLUSTEK3800,
DAC_CANONLIDE80,
DAC_CANONLIDE120
};
enum Genesys_Sensor_Type
{
CCD_UMAX = 0,
CCD_ST12, // SONY ILX548: 5340 Pixel ???
CCD_ST24, // SONY ILX569: 10680 Pixel ???
CCD_5345,
CCD_HP2400,
CCD_HP2300,
CCD_CANONLIDE35,
CIS_XP200, // CIS sensor for Strobe XP200,
CCD_HP3670,
CCD_DP665,
CCD_ROADWARRIOR,
CCD_DSMOBILE600,
CCD_XP300,
CCD_DP685,
CIS_CANONLIDE200,
CIS_CANONLIDE100,
CCD_KVSS080,
CCD_G4050,
CIS_CANONLIDE110,
CCD_PLUSTEK_3600,
CCD_HP_N6310,
CIS_CANONLIDE700,
CCD_CS4400F,
CCD_CS8400F,
CCD_CS8600F,
CCD_IMG101,
CCD_PLUSTEK3800,
CIS_CANONLIDE210,
CIS_CANONLIDE80,
CIS_CANONLIDE220,
CIS_CANONLIDE120,
};
enum Genesys_Gpo_Type
{
GPO_UMAX,
GPO_ST12,
GPO_ST24,
GPO_5345,
GPO_HP2400,
GPO_HP2300,
GPO_CANONLIDE35,
GPO_XP200,
GPO_XP300,
GPO_HP3670,
GPO_DP665,
GPO_DP685,
GPO_CANONLIDE200,
GPO_KVSS080,
GPO_G4050,
GPO_CANONLIDE110,
GPO_PLUSTEK_3600,
GPO_CANONLIDE210,
GPO_HP_N6310,
GPO_CANONLIDE700,
GPO_CS4400F,
GPO_CS8400F,
GPO_CS8600F,
GPO_IMG101,
GPO_PLUSTEK3800,
GPO_CANONLIDE80,
GPO_CANONLIDE120
};
enum Genesys_Motor_Type
{
MOTOR_UMAX = 0,
MOTOR_5345,
MOTOR_ST24,
MOTOR_HP2400,
MOTOR_HP2300,
MOTOR_CANONLIDE35,
MOTOR_XP200,
MOTOR_XP300,
MOTOR_HP3670,
MOTOR_DP665,
MOTOR_ROADWARRIOR,
MOTOR_DSMOBILE_600,
MOTOR_CANONLIDE200,
MOTOR_CANONLIDE100,
MOTOR_KVSS080,
MOTOR_G4050,
MOTOR_CANONLIDE110,
MOTOR_PLUSTEK_3600,
MOTOR_CANONLIDE700,
MOTOR_CS8400F,
MOTOR_CS8600F,
MOTOR_IMG101,
MOTOR_PLUSTEK3800,
MOTOR_CANONLIDE210,
MOTOR_CANONLIDE80,
MOTOR_CANONLIDE120
};
/* Forward typedefs */
typedef struct Genesys_Device Genesys_Device;
struct Genesys_Scanner;
typedef struct Genesys_Calibration_Cache Genesys_Calibration_Cache;
/**
* Scanner command set description.
*
* This description contains parts which are common to all scanners with the
* same command set, but may have different optical resolution and other
* parameters.
*/
typedef struct Genesys_Command_Set
{
/** @name Identification */
/*@{ */
/** Name of this command set */
SANE_String_Const name;
/*@} */
/** For ASIC initialization */
SANE_Status (*init) (Genesys_Device * dev);
SANE_Status (*init_regs_for_warmup) (Genesys_Device * dev,
Genesys_Register_Set * regs,
int *channels, int *total_size);
SANE_Status (*init_regs_for_coarse_calibration) (Genesys_Device * dev);
SANE_Status (*init_regs_for_shading) (Genesys_Device * dev);
SANE_Status (*init_regs_for_scan) (Genesys_Device * dev);
SANE_Bool (*get_filter_bit) (Genesys_Register_Set * reg);
SANE_Bool (*get_lineart_bit) (Genesys_Register_Set * reg);
SANE_Bool (*get_bitset_bit) (Genesys_Register_Set * reg);
SANE_Bool (*get_gain4_bit) (Genesys_Register_Set * reg);
SANE_Bool (*get_fast_feed_bit) (Genesys_Register_Set * reg);
SANE_Bool (*test_buffer_empty_bit) (SANE_Byte val);
SANE_Bool (*test_motor_flag_bit) (SANE_Byte val);
int (*bulk_full_size) (void);
SANE_Status (*set_fe) (Genesys_Device * dev, uint8_t set);
SANE_Status (*set_powersaving) (Genesys_Device * dev, int delay);
SANE_Status (*save_power) (Genesys_Device * dev, SANE_Bool enable);
void (*set_motor_power) (Genesys_Register_Set * regs, SANE_Bool set);
void (*set_lamp_power) (Genesys_Device * dev,
Genesys_Register_Set * regs,
SANE_Bool set);
SANE_Status (*begin_scan) (Genesys_Device * dev,
Genesys_Register_Set * regs,
SANE_Bool start_motor);
SANE_Status (*end_scan) (Genesys_Device * dev,
Genesys_Register_Set * regs,
SANE_Bool check_stop);
/**
* Send gamma tables to ASIC
*/
SANE_Status (*send_gamma_table) (Genesys_Device * dev);
SANE_Status (*search_start_position) (Genesys_Device * dev);
SANE_Status (*offset_calibration) (Genesys_Device * dev);
SANE_Status (*coarse_gain_calibration) (Genesys_Device * dev, int dpi);
SANE_Status (*led_calibration) (Genesys_Device * dev);
SANE_Status (*slow_back_home) (Genesys_Device * dev, SANE_Bool wait_until_home);
SANE_Status (*rewind) (Genesys_Device * dev);
SANE_Status (*bulk_write_register) (Genesys_Device * dev,
Genesys_Register_Set * reg,
size_t elems);
SANE_Status (*bulk_write_data) (Genesys_Device * dev, uint8_t addr,
uint8_t * data, size_t len);
SANE_Status (*bulk_read_data) (Genesys_Device * dev, uint8_t addr,
uint8_t * data, size_t len);
/* Updates hardware sensor information in Genesys_Scanner.val[].
If possible, just get information for given option.
The sensor state in Genesys_Scanner.val[] should be merged with the
new sensor state, using the information that was last read by the frontend
in Genesys_Scanner.last_val[], in such a way that a button up/down
relative to Genesys_Scanner.last_val[] is not lost.
*/
SANE_Status (*update_hardware_sensors) (struct Genesys_Scanner * s);
/* functions for sheetfed scanners */
/**
* load document into scanner
*/
SANE_Status (*load_document) (Genesys_Device * dev);
/**
* detects is the scanned document has left scanner. In this
* case it updates the amount of data to read and set up
* flags in the dev struct
*/
SANE_Status (*detect_document_end) (Genesys_Device * dev);
/**
* eject document from scanner
*/
SANE_Status (*eject_document) (Genesys_Device * dev);
/**
* search for an black or white area in forward or reverse
* direction */
SANE_Status (*search_strip) (Genesys_Device * dev, SANE_Bool forward, SANE_Bool black);
SANE_Status (*is_compatible_calibration) (
Genesys_Device * dev,
Genesys_Calibration_Cache *cache,
SANE_Bool for_overwrite);
/* functions for transparency adapter */
/**
* move scanning head to transparency adapter
*/
SANE_Status (*move_to_ta) (Genesys_Device * dev);
/**
* write shading data calibration to ASIC
*/
SANE_Status (*send_shading_data) (Genesys_Device * dev, uint8_t * data, int size);
/**
* calculate current scan setup
*/
SANE_Status (*calculate_current_setup) (Genesys_Device * dev);
/**
* cold boot init function
*/
SANE_Status (*asic_boot) (Genesys_Device * dev, SANE_Bool cold);
/**
* Scan register setting interface
*/
SANE_Status (*init_scan_regs) (Genesys_Device * dev,
Genesys_Register_Set * reg,
float xres,
float yres,
float startx,
float starty,
float pixels,
float lines,
unsigned int depth,
unsigned int channels,
int scan_method,
int scan_mode,
int color_filter,
unsigned int flags);
} Genesys_Command_Set;
/** @brief structure to describe a scanner model
* This structure describes a model. It is composed of information on the
* sensor, the motor, scanner geometry and flags to drive operation.
*/
typedef struct Genesys_Model
{
SANE_String_Const name;
SANE_String_Const vendor;
SANE_String_Const model;
SANE_Int model_id;
SANE_Int asic_type; /* ASIC type gl646 or gl841 */
Genesys_Command_Set *cmd_set; /* pointers to low level functions */
SANE_Int xdpi_values[MAX_RESOLUTIONS]; /* possible x resolutions */
SANE_Int ydpi_values[MAX_RESOLUTIONS]; /* possible y resolutions */
SANE_Int bpp_gray_values[MAX_DPI]; /* possible depths in gray mode */
SANE_Int bpp_color_values[MAX_DPI]; /* possible depths in color mode */
SANE_Fixed x_offset; /* Start of scan area in mm */
SANE_Fixed y_offset; /* Start of scan area in mm (Amount of
feeding needed to get to the medium) */
SANE_Fixed x_size; /* Size of scan area in mm */
SANE_Fixed y_size; /* Size of scan area in mm */
SANE_Fixed y_offset_calib; /* Start of white strip in mm */
SANE_Fixed x_offset_mark; /* Start of black mark in mm */
SANE_Fixed x_offset_ta; /* Start of scan area in TA mode in mm */
SANE_Fixed y_offset_ta; /* Start of scan area in TA mode in mm */
SANE_Fixed x_size_ta; /* Size of scan area in TA mode in mm */
SANE_Fixed y_size_ta; /* Size of scan area in TA mode in mm */
SANE_Fixed y_offset_calib_ta; /* Start of white strip in TA mode in mm */
SANE_Fixed post_scan; /* Size of scan area after paper sensor stops
sensing document in mm */
SANE_Fixed eject_feed; /* Amount of feeding needed to eject document
after finishing scanning in mm */
/* Line-distance correction (in pixel at optical_ydpi) for CCD scanners */
SANE_Int ld_shift_r; /* red */
SANE_Int ld_shift_g; /* green */
SANE_Int ld_shift_b; /* blue */
Genesys_Color_Order line_mode_color_order; /* Order of the CCD/CIS colors */
SANE_Bool is_cis; /* Is this a CIS or CCD scanner? */
SANE_Bool is_sheetfed; /* Is this sheetfed scanner? */
SANE_Int ccd_type; /* which SENSOR type do we have ? */
SANE_Int dac_type; /* which DAC do we have ? */
SANE_Int gpo_type; /* General purpose output type */
SANE_Int motor_type; /* stepper motor type */
SANE_Word flags; /* Which hacks are needed for this scanner? */
SANE_Word buttons; /* Button flags, described existing buttons for the model */
/*@} */
SANE_Int shading_lines; /* how many lines are used for shading calibration */
SANE_Int search_lines; /* how many lines are used to search start position */
} Genesys_Model;
#define SCAN_METHOD_FLATBED 0 /**< normal scan method */
#define SCAN_METHOD_TRANSPARENCY 2 /**< scan using transparency adaptor */
#define SCAN_METHOD_NEGATIVE 0x88 /**< scan using negative adaptor */
#define SCAN_MODE_LINEART 0 /**< lineart scan mode */
#define SCAN_MODE_HALFTONE 1 /**< halftone scan mode */
#define SCAN_MODE_GRAY 2 /**< gray scan mode */
#define SCAN_MODE_COLOR 4 /**< color scan mode */
typedef struct
{
int scan_method; /* todo: change >=2: Transparency, 0x88: negative film */
int scan_mode; /* todo: change 0,1 = lineart, halftone; 2 = gray, 3 = 3pass color, 4=single pass color */
int xres; /**< horizontal dpi */
int yres; /**< vertical dpi */
double tl_x; /* x start on scan table in mm */
double tl_y; /* y start on scan table in mm */
unsigned int lines; /**< number of lines at scan resolution */
unsigned int pixels; /**< number of pixels at scan resolution */
unsigned int depth;/* bit depth of the scan */
/* todo : remove these fields ? */
int exposure_time;
unsigned int color_filter;
/**< true if scan is true gray, false if monochrome scan */
int true_gray;
/**< lineart threshold */
int threshold;
/**< lineart threshold curve for dynamic rasterization */
int threshold_curve;
/**< Disable interpolation for xres<yres*/
int disable_interpolation;
/**< Use double x resolution internally to provide better
* quality */
int double_xres;
/**< true is lineart is generated from gray data by
* the dynamic rasterization algo */
int dynamic_lineart;
/**< value for contrast enhancement in the [-100..100] range */
int contrast;
/**< value for brightness enhancement in the [-100..100] range */
int brightness;
/**< cahe entries expiration time */
int expiration_time;
} Genesys_Settings;
typedef struct Genesys_Current_Setup
{
int pixels; /* pixel count expected from scanner */
int lines; /* line count expected from scanner */
int depth; /* depth expected from scanner */
int channels; /* channel count expected from scanner */
int scan_method; /* scanning method: flatbed or XPA */
int exposure_time; /* used exposure time */
float xres; /* used xres */
float yres; /* used yres*/
SANE_Bool half_ccd; /* half ccd mode */
SANE_Int stagger;
SANE_Int max_shift; /* max shift of any ccd component, including staggered pixels*/
} Genesys_Current_Setup;
struct Genesys_Buffer
{
Genesys_Buffer() = default;
size_t size() const { return buffer_.size(); }
size_t avail() const { return avail_; }
size_t pos() const { return pos_; }
// TODO: refactor code that uses this function to no longer use it
void set_pos(size_t pos) { pos_ = pos; }
void alloc(size_t size);
void clear();
void reset();
uint8_t* get_write_pos(size_t size);
uint8_t* get_read_pos(); // TODO: mark as const
void produce(size_t size);
void consume(size_t size);
private:
std::vector<uint8_t> buffer_;
// current position in read buffer
size_t pos_ = 0;
// data bytes currently in buffer
size_t avail_ = 0;
};
struct Genesys_Calibration_Cache
{
Genesys_Calibration_Cache() = default;
~Genesys_Calibration_Cache() = default;
// used to check if entry is compatible
Genesys_Current_Setup used_setup = {};
time_t last_calibration = 0;
Genesys_Frontend frontend = {};
Genesys_Sensor sensor;
size_t calib_pixels = 0;
size_t calib_channels = 0;
size_t average_size = 0;
std::vector<uint8_t> white_average_data;
std::vector<uint8_t> dark_average_data;
};
/**
* Describes the current device status for the backend
* session. This should be more accurately called
* Genesys_Session .
*/
struct Genesys_Device
{
Genesys_Device() = default;
~Genesys_Device();
// frees commonly used data
void clear();
SANE_Int dn = 0;
SANE_Word vendorId = 0; /**< USB vendor identifier */
SANE_Word productId = 0; /**< USB product identifier */
// USB mode:
// 0: not set
// 1: USB 1.1
// 2: USB 2.0
SANE_Int usb_mode = 0;
SANE_String file_name = nullptr;
std::string calib_file;
// if enabled, no calibration data will be loaded or saved to files
SANE_Int force_calibration = 0;
Genesys_Model *model = nullptr;
Genesys_Register_Set reg[256] = {};
Genesys_Register_Set calib_reg[256] = {};
Genesys_Settings settings = {};
Genesys_Frontend frontend = {};
Genesys_Sensor sensor;
Genesys_Gpo gpo = {};
Genesys_Motor motor = {};
uint16_t slope_table0[256] = {};
uint16_t slope_table1[256] = {};
uint8_t control[6] = {};
time_t init_date = 0;
size_t average_size = 0;
// number of pixels used during shading calibration
size_t calib_pixels = 0;
// number of lines used during shading calibration
size_t calib_lines = 0;
size_t calib_channels = 0;
size_t calib_resolution = 0;
// bytes to read from USB when calibrating. If 0, this is not set
size_t calib_total_bytes_to_read = 0;
std::vector<uint8_t> white_average_data;
std::vector<uint8_t> dark_average_data;
uint16_t dark[3] = {};
SANE_Bool already_initialized = 0;
SANE_Int scanhead_position_in_steps = 0;
SANE_Int lamp_off_time = 0;
SANE_Bool read_active = 0;
// signal wether the park command has been issued
SANE_Bool parking = 0;
// for sheetfed scanner's, is TRUE when there is a document in the scanner
SANE_Bool document = 0;
Genesys_Buffer read_buffer;
Genesys_Buffer lines_buffer;
Genesys_Buffer shrink_buffer;
Genesys_Buffer out_buffer;
// buffer for digital lineart from gray data
Genesys_Buffer binarize_buffer = {};
// local buffer for gray data during dynamix lineart
Genesys_Buffer local_buffer = {};
// bytes to read from scanner
size_t read_bytes_left = 0;
// total bytes read sent to frontend
size_t total_bytes_read = 0;
// total bytes read to be sent to frontend
size_t total_bytes_to_read = 0;
// asic's word per line
size_t wpl = 0;
// contains the real used values
Genesys_Current_Setup current_setup = {};
// look up table used in dynamic rasterization
unsigned char lineart_lut[256] = {};
std::list<Genesys_Calibration_Cache> calibration_cache;
// used red line-distance shift
SANE_Int ld_shift_r = 0;
// used green line-distance shift
SANE_Int ld_shift_g = 0;
// used blue line-distance shift
SANE_Int ld_shift_b = 0;
// number of segments composing the sensor
int segnb = 0;
// number of lines used in line interpolation
int line_interp = 0;
// number of scan lines used during scan
int line_count = 0;
// bytes per full scan widthline
size_t bpl = 0;
// bytes distance between an odd and an even pixel
size_t dist = 0;
// number of even pixels
size_t len = 0;
// current pixel position within sub window
size_t cur = 0;
// number of bytes to skip at start of line
size_t skip = 0;
// array describing the order of the sub-segments of the sensor
size_t* order = nullptr;
// buffer to handle even/odd data
Genesys_Buffer oe_buffer = {};
// when true the scanned picture is first buffered to allow software image enhancements
SANE_Bool buffer_image = 0;
// image buffer where the scanned picture is stored
std::vector<uint8_t> img_buffer;
// binary logger file
FILE *binary = nullptr;
};
typedef struct Genesys_USB_Device_Entry
{
SANE_Word vendor; /**< USB vendor identifier */
SANE_Word product; /**< USB product identifier */
Genesys_Model *model; /**< Scanner model information */
} Genesys_USB_Device_Entry;
/**
* structure for motor database
*/
typedef struct {
int motor_type; /**< motor id */
int exposure; /**< exposure for the slope table */
int step_type; /**< default step type for given exposure */
uint32_t *table; // 0-terminated slope table at full step (i.e. step_type == 0)
} Motor_Profile;
#define FULL_STEP 0
#define HALF_STEP 1
#define QUARTER_STEP 2
#define EIGHTH_STEP 3
#define SLOPE_TABLE_SIZE 1024
#define SCAN_TABLE 0 /* table 1 at 0x4000 for gl124 */
#define BACKTRACK_TABLE 1 /* table 2 at 0x4800 for gl124 */
#define STOP_TABLE 2 /* table 3 at 0x5000 for gl124 */
#define FAST_TABLE 3 /* table 4 at 0x5800 for gl124 */
#define HOME_TABLE 4 /* table 5 at 0x6000 for gl124 */
#define SCAN_FLAG_SINGLE_LINE 0x001
#define SCAN_FLAG_DISABLE_SHADING 0x002
#define SCAN_FLAG_DISABLE_GAMMA 0x004
#define SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE 0x008
#define SCAN_FLAG_IGNORE_LINE_DISTANCE 0x010
#define SCAN_FLAG_USE_OPTICAL_RES 0x020
#define SCAN_FLAG_DISABLE_LAMP 0x040
#define SCAN_FLAG_DYNAMIC_LINEART 0x080
#define SCAN_FLAG_CALIBRATION 0x100
#define SCAN_FLAG_FEEDING 0x200
#define SCAN_FLAG_USE_XPA 0x400
#define SCAN_FLAG_ENABLE_LEDADD 0x800
#define MOTOR_FLAG_AUTO_GO_HOME 0x01
#define MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE 0x02
#define MOTOR_FLAG_FEED 0x04
#define MOTOR_FLAG_USE_XPA 0x08
/** @name "Optical flags" */
/*@{ optical flags available when setting up sensor for scan */
#define OPTICAL_FLAG_DISABLE_GAMMA 0x01 /**< disable gamma correction */
#define OPTICAL_FLAG_DISABLE_SHADING 0x02 /**< disable shading correction */
#define OPTICAL_FLAG_DISABLE_LAMP 0x04 /**< turn off lamp */
#define OPTICAL_FLAG_ENABLE_LEDADD 0x08 /**< enable true CIS gray by enabling LED addition */
#define OPTICAL_FLAG_DISABLE_DOUBLE 0x10 /**< disable automatic x-direction double data expansion */
#define OPTICAL_FLAG_STAGGER 0x20 /**< disable stagger correction */
#define OPTICAL_FLAG_USE_XPA 0x40 /**< use XPA lamp rather than regular one */
/*@} */
/*--------------------------------------------------------------------------*/
/* common functions needed by low level specific functions */
/*--------------------------------------------------------------------------*/
extern Genesys_Register_Set *sanei_genesys_get_address (Genesys_Register_Set * regs, uint16_t addr);
extern SANE_Byte
sanei_genesys_read_reg_from_set (Genesys_Register_Set * regs, uint16_t address);
extern void
sanei_genesys_set_reg_from_set (Genesys_Register_Set * regs, uint16_t address, SANE_Byte value);
extern SANE_Status sanei_genesys_init_cmd_set (Genesys_Device * dev);
extern SANE_Status
sanei_genesys_read_register (Genesys_Device * dev, uint16_t reg, uint8_t * val);
extern SANE_Status
sanei_genesys_write_register (Genesys_Device * dev, uint16_t reg, uint8_t val);
extern SANE_Status
sanei_genesys_read_hregister (Genesys_Device * dev, uint16_t reg, uint8_t * val);
extern SANE_Status
sanei_genesys_write_hregister (Genesys_Device * dev, uint16_t reg, uint8_t val);
extern SANE_Status
sanei_genesys_bulk_write_register (Genesys_Device * dev,
Genesys_Register_Set * reg,
size_t elems);
extern SANE_Status sanei_genesys_write_0x8c (Genesys_Device * dev, uint8_t index, uint8_t val);
extern unsigned sanei_genesys_get_bulk_max_size(Genesys_Device * dev);
extern SANE_Status sanei_genesys_bulk_read_data(Genesys_Device * dev, uint8_t addr, uint8_t* data,
size_t len);
extern SANE_Status sanei_genesys_bulk_write_data(Genesys_Device * dev, uint8_t addr, uint8_t* data,
size_t len);
extern SANE_Status sanei_genesys_get_status (Genesys_Device * dev, uint8_t * status);
extern void sanei_genesys_print_status (uint8_t val);
extern SANE_Status
sanei_genesys_write_ahb(Genesys_Device* dev, uint32_t addr, uint32_t size, uint8_t * data);
extern void sanei_genesys_init_fe (Genesys_Device * dev);
extern void sanei_genesys_init_structs (Genesys_Device * dev);
extern SANE_Status
sanei_genesys_init_shading_data (Genesys_Device * dev, int pixels_per_line);
extern SANE_Status sanei_genesys_read_valid_words (Genesys_Device * dev,
unsigned int *steps);
extern SANE_Status sanei_genesys_read_scancnt (Genesys_Device * dev,
unsigned int *steps);
extern SANE_Status sanei_genesys_read_feed_steps (Genesys_Device * dev,
unsigned int *steps);
extern void
sanei_genesys_calculate_zmode2 (SANE_Bool two_table,
uint32_t exposure_time,
uint16_t * slope_table,
int reg21,
int move, int reg22, uint32_t * z1,
uint32_t * z2);
extern void
sanei_genesys_calculate_zmode (uint32_t exposure_time,
uint32_t steps_sum,
uint16_t last_speed, uint32_t feedl,
uint8_t fastfed, uint8_t scanfed,
uint8_t fwdstep, uint8_t tgtime,
uint32_t * z1, uint32_t * z2);
extern SANE_Status
sanei_genesys_set_buffer_address (Genesys_Device * dev, uint32_t addr);
/** @brief Reads data from frontend register.
* Reads data from the given frontend register. May be used to query
* analog frontend status by reading the right register.
*/
extern SANE_Status
sanei_genesys_fe_read_data (Genesys_Device * dev, uint8_t addr,
uint16_t *data);
/** @brief Write data to frontend register.
* Writes data to analog frontend register at the given address.
* The use and address of registers change from model to model.
*/
extern SANE_Status
sanei_genesys_fe_write_data (Genesys_Device * dev, uint8_t addr,
uint16_t data);
extern SANE_Int
sanei_genesys_exposure_time2 (Genesys_Device * dev,
float ydpi, int step_type, int endpixel,
int led_exposure, int power_mode);
extern SANE_Int
sanei_genesys_exposure_time (Genesys_Device * dev, Genesys_Register_Set * reg,
int xdpi);
extern SANE_Int
sanei_genesys_generate_slope_table (uint16_t * slope_table, unsigned int max_steps,
unsigned int use_steps, uint16_t stop_at,
uint16_t vstart, uint16_t vend,
unsigned int steps, double g,
unsigned int *used_steps, unsigned int *vfinal);
extern SANE_Int
sanei_genesys_create_slope_table (Genesys_Device * dev,
uint16_t * slope_table, int steps,
int step_type, int exposure_time,
SANE_Bool same_speed, double yres,
int power_mode);
SANE_Int
sanei_genesys_create_slope_table3 (Genesys_Device * dev,
uint16_t * slope_table, int max_step,
unsigned int use_steps,
int step_type, int exposure_time,
double yres,
unsigned int *used_steps,
unsigned int *final_exposure,
int power_mode);
extern void
sanei_genesys_create_gamma_table (uint16_t * gamma_table, int size,
float maximum, float gamma_max,
float gamma);
extern SANE_Status sanei_genesys_send_gamma_table (Genesys_Device * dev);
extern SANE_Status sanei_genesys_start_motor (Genesys_Device * dev);
extern SANE_Status sanei_genesys_stop_motor (Genesys_Device * dev);
extern SANE_Status
sanei_genesys_search_reference_point (Genesys_Device * dev, uint8_t * data,
int start_pixel, int dpi, int width,
int height);
extern SANE_Status sanei_genesys_write_file(const char *filename, uint8_t* data, size_t length);
extern SANE_Status
sanei_genesys_write_pnm_file (const char *filename, uint8_t * data, int depth,
int channels, int pixels_per_line, int lines);
extern SANE_Status
sanei_genesys_test_buffer_empty (Genesys_Device * dev, SANE_Bool * empty);
extern SANE_Status
sanei_genesys_read_data_from_scanner (Genesys_Device * dev, uint8_t * data,
size_t size);
extern SANE_Status
sanei_genesys_set_double(Genesys_Register_Set *regs, uint16_t addr, uint16_t value);
extern SANE_Status
sanei_genesys_set_triple(Genesys_Register_Set *regs, uint16_t addr, uint32_t value);
extern SANE_Status
sanei_genesys_get_double(Genesys_Register_Set *regs, uint16_t addr, uint16_t *value);
extern SANE_Status
sanei_genesys_get_triple(Genesys_Register_Set *regs, uint16_t addr, uint32_t *value);
extern SANE_Status
sanei_genesys_wait_for_home(Genesys_Device *dev);
extern SANE_Status
sanei_genesys_asic_init(Genesys_Device *dev, SANE_Bool cold);
extern
int sanei_genesys_compute_dpihw(Genesys_Device *dev, int xres);
extern
Motor_Profile *sanei_genesys_get_motor_profile(Motor_Profile *motors, int motor_type, int exposure);
extern
int sanei_genesys_compute_step_type(Motor_Profile *motors, int motor_type, int exposure);
extern
int sanei_genesys_slope_table(uint16_t *slope, int *steps, int dpi, int exposure, int base_dpi, int step_type, int factor, int motor_type, Motor_Profile *motors);
/** @brief find lowest motor resolution for the device.
* Parses the resolution list for motor and
* returns the lowest value.
* @param dev for which to find the lowest motor resolution
* @return the lowest available motor resolution for the device
*/
extern
int sanei_genesys_get_lowest_ydpi(Genesys_Device *dev);
/** @brief find lowest resolution for the device.
* Parses the resolution list for motor and sensor and
* returns the lowest value.
* @param dev for which to find the lowest resolution
* @return the lowest available resolution for the device
*/
extern
int sanei_genesys_get_lowest_dpi(Genesys_Device *dev);
/**
* reads previously cached calibration data
* from file
*/
extern SANE_Status
sanei_genesys_read_calibration (Genesys_Device * dev);
extern SANE_Status
sanei_genesys_is_compatible_calibration (Genesys_Device * dev,
Genesys_Calibration_Cache * cache,
int for_overwrite);
/** @brief compute maximum line distance shift
* compute maximum line distance shift for the motor and sensor
* combination. Line distance shift is the distance between different
* color component of CCD sensors. Since these components aren't at
* the same physical place, they scan diffrent lines. Software must
* take this into account to accurately mix color data.
* @param dev device session to compute max_shift for
* @param channels number of color channels for the scan
* @param yres motor resolution used for the scan
* @param flags scan flags
* @return 0 or line distance shift
*/
extern
int sanei_genesys_compute_max_shift(Genesys_Device *dev,
int channels,
int yres,
int flags);
extern SANE_Status
sanei_genesys_load_lut (unsigned char * lut,
int in_bits,
int out_bits,
int out_min,
int out_max,
int slope,
int offset);
extern SANE_Status
sanei_genesys_generate_gamma_buffer(Genesys_Device * dev,
int bits,
int max,
int size,
uint8_t *gamma);
/*---------------------------------------------------------------------------*/
/* ASIC specific functions declarations */
/*---------------------------------------------------------------------------*/
extern SANE_Status sanei_gl646_init_cmd_set (Genesys_Device * dev);
extern SANE_Status sanei_gl841_init_cmd_set (Genesys_Device * dev);
extern SANE_Status sanei_gl843_init_cmd_set (Genesys_Device * dev);
extern SANE_Status sanei_gl846_init_cmd_set (Genesys_Device * dev);
extern SANE_Status sanei_gl847_init_cmd_set (Genesys_Device * dev);
extern SANE_Status sanei_gl124_init_cmd_set (Genesys_Device * dev);
// same as usleep, except that it does nothing if testing mode is enabled
extern void sanei_genesys_usleep(unsigned int useconds);
// same as sanei_genesys_usleep just that the duration is in milliseconds
extern void sanei_genesys_sleep_ms(unsigned int milliseconds);
class SaneException : std::exception {
public:
SaneException(SANE_Status status) : status_(status) {}
SANE_Status status() const { return status_; }
virtual const char* what() const noexcept override { return sane_strstatus(status_); }
private:
SANE_Status status_;
};
template<class F>
SANE_Status wrap_exceptions_to_status_code(const char* func, F&& function)
{
try {
return function();
} catch (const SaneException& exc) {
return exc.status();
} catch (const std::bad_alloc& exc) {
return SANE_STATUS_NO_MEM;
} catch (const std::exception& exc) {
DBG(DBG_error, "%s: got uncaught exception: %s", func, exc.what());
return SANE_STATUS_INVAL;
} catch (...) {
DBG(DBG_error, "%s: got unknown uncaught exception", func);
return SANE_STATUS_INVAL;
}
}
template<class F>
void catch_all_exceptions(const char* func, F&& function)
{
try {
function();
} catch (const SaneException& exc) {
// ignore, this will already be logged
} catch (const std::bad_alloc& exc) {
// ignore, this will already be logged
} catch (const std::exception& exc) {
DBG(DBG_error, "%s: got uncaught exception: %s", func, exc.what());
} catch (...) {
DBG(DBG_error, "%s: got unknown uncaught exception", func);
}
}
inline void wrap_status_code_to_exception(SANE_Status status)
{
if (status == SANE_STATUS_GOOD)
return;
throw SaneException(status);
}
void add_function_to_run_at_backend_exit(std::function<void()> function);
// calls functions added via add_function_to_run_at_backend_exit() in reverse order of being
// added.
void run_functions_at_backend_exit();
template<class T>
class StaticInit {
public:
StaticInit() = default;
StaticInit(const StaticInit&) = delete;
StaticInit& operator=(const StaticInit&) = delete;
template<class... Args>
void init(Args&& ... args)
{
ptr_ = std::unique_ptr<T>(new T(std::forward<Args>(args)...));
add_function_to_run_at_backend_exit([this](){ deinit(); });
}
void deinit()
{
ptr_.release();
}
const T* operator->() const { return ptr_.get(); }
T* operator->() { return ptr_.get(); }
const T& operator*() const { return *ptr_.get(); }
T& operator*() { return *ptr_.get(); }
private:
std::unique_ptr<T> ptr_;
};
extern StaticInit<std::vector<Genesys_Sensor>> s_sensors;
void genesys_init_sensor_tables();
#endif /* not GENESYS_LOW_H */
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