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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_gl846.cc
parent1687222e1b9e74c89cafbb5910e72d8ec7bfd40f (diff)
New upstream version 1.0.29upstream/1.0.29
Diffstat (limited to 'backend/genesys_gl846.cc')
-rw-r--r--backend/genesys_gl846.cc3393
1 files changed, 0 insertions, 3393 deletions
diff --git a/backend/genesys_gl846.cc b/backend/genesys_gl846.cc
deleted file mode 100644
index c5294b8..0000000
--- a/backend/genesys_gl846.cc
+++ /dev/null
@@ -1,3393 +0,0 @@
-/* sane - Scanner Access Now Easy.
-
- Copyright (C) 2012-2013 Stéphane Voltz <stef.dev@free.fr>
-
-
- This file is part of the SANE package.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
-
- As a special exception, the authors of SANE give permission for
- additional uses of the libraries contained in this release of SANE.
-
- The exception is that, if you link a SANE library with other files
- to produce an executable, this does not by itself cause the
- resulting executable to be covered by the GNU General Public
- License. Your use of that executable is in no way restricted on
- account of linking the SANE library code into it.
-
- This exception does not, however, invalidate any other reasons why
- the executable file might be covered by the GNU General Public
- License.
-
- If you submit changes to SANE to the maintainers to be included in
- a subsequent release, you agree by submitting the changes that
- those changes may be distributed with this exception intact.
-
- If you write modifications of your own for SANE, it is your choice
- whether to permit this exception to apply to your modifications.
- If you do not wish that, delete this exception notice.
-*/
-
-/** @file
- *
- * This file handles GL846 and GL845 ASICs since they are really close to each other.
- */
-
-#define DEBUG_DECLARE_ONLY
-
-#include "genesys_gl846.h"
-
-#include <vector>
-
-/****************************************************************************
- Mid level functions
- ****************************************************************************/
-
-static SANE_Bool
-gl846_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
-gl846_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
-gl846_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
-gl846_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
-gl846_get_gain4_bit (Genesys_Register_Set * regs)
-{
- GenesysRegister *r = NULL;
-
- r = sanei_genesys_get_address (regs, 0x06);
- if (r && (r->value & REG06_GAIN4))
- return SANE_TRUE;
- return SANE_FALSE;
-}
-
-static SANE_Bool
-gl846_test_buffer_empty_bit (SANE_Byte val)
-{
- if (val & REG41_BUFEMPTY)
- return SANE_TRUE;
- return SANE_FALSE;
-}
-
-static SANE_Bool
-gl846_test_motor_flag_bit (SANE_Byte val)
-{
- if (val & REG41_MOTORENB)
- return SANE_TRUE;
- return SANE_FALSE;
-}
-
-/**
- * compute the step multiplier used
- */
-static int
-gl846_get_step_multiplier (Genesys_Register_Set * regs)
-{
- GenesysRegister *r = NULL;
- int value = 1;
-
- r = sanei_genesys_get_address (regs, 0x9d);
- if (r != NULL)
- {
- value = (r->value & 0x0f)>>1;
- value = 1 << value;
- }
- DBG (DBG_io, "%s: step multiplier is %d\n", __func__, value);
- return value;
-}
-
-/** @brief sensor profile
- * search for the database of motor profiles and get the best one. Each
- * profile is at a specific dpihw. Use LiDE 110 table by default.
- * @param sensor_type sensor id
- * @param dpi hardware dpi for the scan
- * @return a pointer to a Sensor_Profile struct
- */
-static Sensor_Profile *get_sensor_profile(int sensor_type, int dpi)
-{
- unsigned int i;
- int idx;
-
- i=0;
- idx=-1;
- while(i<sizeof(sensors)/sizeof(Sensor_Profile))
- {
- /* exact match */
- if(sensors[i].sensor_type==sensor_type && sensors[i].dpi==dpi)
- {
- return &(sensors[i]);
- }
-
- /* closest match */
- if(sensors[i].sensor_type==sensor_type)
- {
- if(idx<0)
- {
- idx=i;
- }
- else
- {
- if(sensors[i].dpi>=dpi
- && sensors[i].dpi<sensors[idx].dpi)
- {
- idx=i;
- }
- }
- }
- i++;
- }
-
- /* default fallback */
- if(idx<0)
- {
- DBG (DBG_warn,"%s: using default sensor profile\n",__func__);
- idx=0;
- }
-
- return &(sensors[idx]);
-}
-
-/**@brief compute exposure to use
- * compute the sensor exposure based on target resolution
- */
-static int gl846_compute_exposure(Genesys_Device *dev, int xres)
-{
- Sensor_Profile* sensor_profile=get_sensor_profile(dev->model->ccd_type, xres);
- return sensor_profile->exposure;
-}
-
-
-/** @brief sensor specific settings
-*/
-static void gl846_setup_sensor(Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set * regs, int dpi)
-{
- GenesysRegister *r;
- int dpihw;
- uint16_t exp;
-
- DBGSTART;
- dpihw=sanei_genesys_compute_dpihw(dev, sensor, dpi);
-
- for (uint16_t addr = 0x16; addr < 0x1e; addr++) {
- regs->set8(addr, sensor.custom_regs.get_value(addr));
- }
-
- for (uint16_t addr = 0x52; addr < 0x52 + 9; addr++) {
- regs->set8(addr, sensor.custom_regs.get_value(addr));
- }
-
- /* set EXPDUMMY and CKxMAP */
- dpihw=sanei_genesys_compute_dpihw(dev, sensor, dpi);
- Sensor_Profile* sensor_profile = get_sensor_profile(dev->model->ccd_type, dpihw);
-
- sanei_genesys_set_reg_from_set(regs,REG_EXPDMY,(uint8_t)((sensor_profile->expdummy) & 0xff));
-
- /* if no calibration has been done, set default values for exposures */
- exp = sensor.exposure.red;
- if(exp==0)
- {
- exp=sensor_profile->expr;
- }
- sanei_genesys_set_double(regs,REG_EXPR,exp);
-
- exp = sensor.exposure.green;
- if(exp==0)
- {
- exp=sensor_profile->expg;
- }
- sanei_genesys_set_double(regs,REG_EXPG,exp);
-
- exp = sensor.exposure.blue;
- if(exp==0)
- {
- exp=sensor_profile->expb;
- }
- sanei_genesys_set_double(regs,REG_EXPB,exp);
-
- sanei_genesys_set_triple(regs,REG_CK1MAP,sensor_profile->ck1map);
- sanei_genesys_set_triple(regs,REG_CK3MAP,sensor_profile->ck3map);
- sanei_genesys_set_triple(regs,REG_CK4MAP,sensor_profile->ck4map);
-
- /* order of the sub-segments */
- dev->order=sensor_profile->order;
-
- r = sanei_genesys_get_address (regs, 0x17);
- r->value = sensor_profile->r17;
-
- DBGCOMPLETED;
-}
-
-
-/** @brief set all registers to default values .
- * This function is called only once at the beginning and
- * fills register startup values for registers reused across scans.
- * Those that are rarely modified or not modified are written
- * individually.
- * @param dev device structure holding register set to initialize
- */
-static void
-gl846_init_registers (Genesys_Device * dev)
-{
- DBGSTART;
-
- dev->reg.clear();
-
- SETREG (0x01,0x60);
- SETREG (0x02,0x38);
- SETREG (0x03,0x03);
- SETREG (0x04,0x22);
- SETREG (0x05,0x60);
- SETREG (0x06,0x10);
- SETREG (0x08,0x60);
- SETREG (0x09,0x00);
- SETREG (0x0a,0x00);
- SETREG (0x0b,0x8b);
- SETREG (0x0c,0x00);
- SETREG (0x0d,0x00);
- SETREG (0x10,0x00);
- SETREG (0x11,0x00);
- SETREG (0x12,0x00);
- SETREG (0x13,0x00);
- SETREG (0x14,0x00);
- SETREG (0x15,0x00);
- SETREG (0x16,0xbb);
- SETREG (0x17,0x13);
- SETREG (0x18,0x10);
- SETREG (0x19,0x2a);
- SETREG (0x1a,0x34);
- SETREG (0x1b,0x00);
- SETREG (0x1c,0x20);
- SETREG (0x1d,0x06);
- SETREG (0x1e,0xf0);
- SETREG (0x1f,0x01);
- SETREG (0x20,0x03);
- SETREG (0x21,0x10);
- SETREG (0x22,0x60);
- SETREG (0x23,0x60);
- SETREG (0x24,0x60);
- SETREG (0x25,0x00);
- SETREG (0x26,0x00);
- SETREG (0x27,0x00);
- SETREG (0x2c,0x00);
- SETREG (0x2d,0x00);
- SETREG (0x2e,0x80);
- SETREG (0x2f,0x80);
- SETREG (0x30,0x00);
- SETREG (0x31,0x00);
- SETREG (0x32,0x00);
- SETREG (0x33,0x00);
- SETREG (0x34,0x1f);
- SETREG (0x35,0x00);
- SETREG (0x36,0x40);
- SETREG (0x37,0x00);
- SETREG (0x38,0x2a);
- SETREG (0x39,0xf8);
- SETREG (0x3d,0x00);
- SETREG (0x3e,0x00);
- SETREG (0x3f,0x01);
- SETREG (0x52,0x02);
- SETREG (0x53,0x04);
- SETREG (0x54,0x06);
- SETREG (0x55,0x08);
- SETREG (0x56,0x0a);
- SETREG (0x57,0x00);
- SETREG (0x58,0x59);
- SETREG (0x59,0x31);
- SETREG (0x5a,0x40);
- SETREG (0x5e,0x1f);
- SETREG (0x5f,0x01);
- SETREG (0x60,0x00);
- SETREG (0x61,0x00);
- SETREG (0x62,0x00);
- SETREG (0x63,0x00);
- SETREG (0x64,0x00);
- SETREG (0x65,0x00);
- SETREG (0x67,0x7f);
- SETREG (0x68,0x7f);
- SETREG (0x69,0x01);
- SETREG (0x6a,0x01);
- SETREG (0x70,0x01);
- SETREG (0x71,0x00);
- SETREG (0x72,0x02);
- SETREG (0x73,0x01);
- SETREG (0x74,0x00);
- SETREG (0x75,0x00);
- SETREG (0x76,0x00);
- SETREG (0x77,0x00);
- SETREG (0x78,0x00);
- SETREG (0x79,0x3f);
- SETREG (0x7a,0x00);
- SETREG (0x7b,0x09);
- SETREG (0x7c,0x99);
- SETREG (0x7d,0x20);
- SETREG (0x7f,0x05);
- SETREG (0x80,0x4f);
- SETREG (0x87,0x02);
- SETREG (0x94,0xff);
- SETREG (0x9d,0x04);
- SETREG (0x9e,0x00);
- SETREG (0xa1,0xe0);
- SETREG (0xa2,0x1f);
- SETREG (0xab,0xc0);
- SETREG (0xbb,0x00);
- SETREG (0xbc,0x0f);
- SETREG (0xdb,0xff);
- SETREG (0xfe,0x08);
- SETREG (0xff,0x02);
- SETREG (0x98,0x20);
- SETREG (0x99,0x00);
- SETREG (0x9a,0x90);
- SETREG (0x9b,0x00);
- SETREG (0xf8,0x05);
-
- const auto& sensor = sanei_genesys_find_sensor_any(dev);
-
- /* fine tune upon device description */
- dev->reg.find_reg(0x05).value &= ~REG05_DPIHW;
- switch (sensor.optical_res)
- {
- case 600:
- dev->reg.find_reg(0x05).value |= REG05_DPIHW_600;
- break;
- case 1200:
- dev->reg.find_reg(0x05).value |= REG05_DPIHW_1200;
- break;
- case 2400:
- dev->reg.find_reg(0x05).value |= REG05_DPIHW_2400;
- break;
- case 4800:
- dev->reg.find_reg(0x05).value |= REG05_DPIHW_4800;
- break;
- }
-
- /* initalize calibration reg */
- dev->calib_reg = dev->reg;
-
- DBGCOMPLETED;
-}
-
-/**@brief send slope table for motor movement
- * Send slope_table in machine byte order
- * @param dev device to send slope table
- * @param table_nr index of the slope table in ASIC memory
- * Must be in the [0-4] range.
- * @param slope_table pointer to 16 bit values array of the slope table
- * @param steps number of elements in the slope table
- */
-static SANE_Status
-gl846_send_slope_table (Genesys_Device * dev, int table_nr,
- uint16_t * slope_table, int steps)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int i;
- char msg[10000];
-
- DBG (DBG_proc, "%s (table_nr = %d, steps = %d)\n", __func__,
- table_nr, steps);
-
- /* sanity check */
- if(table_nr<0 || table_nr>4)
- {
- DBG (DBG_error, "%s: invalid table number %d!\n", __func__, table_nr);
- return SANE_STATUS_INVAL;
- }
-
- std::vector<uint8_t> table(steps * 2);
- for (i = 0; i < steps; i++)
- {
- table[i * 2] = slope_table[i] & 0xff;
- table[i * 2 + 1] = slope_table[i] >> 8;
- }
-
- if (DBG_LEVEL >= DBG_io)
- {
- sprintf (msg, "write slope %d (%d)=", table_nr, steps);
- for (i = 0; i < steps; i++)
- {
- sprintf (msg+strlen(msg), "%d", slope_table[i]);
- }
- DBG (DBG_io, "%s: %s\n", __func__, msg);
- }
-
- /* slope table addresses are fixed */
- status = sanei_genesys_write_ahb(dev, 0x10000000 + 0x4000 * table_nr, steps * 2, table.data());
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: write to AHB failed writing slope table %d (%s)\n", __func__, table_nr,
- sane_strstatus(status));
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-/**
- * Set register values of Analog Device type frontend
- * */
-static SANE_Status
-gl846_set_adi_fe (Genesys_Device * dev, uint8_t set)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int i;
- uint8_t val8;
-
- DBGSTART;
-
- /* wait for FE to be ready */
- status = sanei_genesys_get_status (dev, &val8);
- while (val8 & REG41_FEBUSY)
- {
- sanei_genesys_sleep_ms(10);
- status = sanei_genesys_get_status (dev, &val8);
- };
-
- if (set == AFE_INIT)
- {
- DBG (DBG_proc, "%s(): setting DAC %u\n", __func__, dev->model->dac_type);
- dev->frontend = dev->frontend_initial;
- }
-
- /* write them to analog frontend */
- status = sanei_genesys_fe_write_data(dev, 0x00, dev->frontend.regs.get_value(0x00));
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error, "%s: failed to write reg0: %s\n", __func__,
- sane_strstatus (status));
- return status;
- }
- status = sanei_genesys_fe_write_data(dev, 0x01, dev->frontend.regs.get_value(0x01));
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error, "%s: failed to write reg1: %s\n", __func__,
- sane_strstatus (status));
- return status;
- }
-
- for (i = 0; i < 3; i++)
- {
- status = sanei_genesys_fe_write_data(dev, 0x02 + i, dev->frontend.get_gain(i));
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "%s: failed to write gain %d: %s\n", __func__, i,
- sane_strstatus (status));
- return status;
- }
- }
- for (i = 0; i < 3; i++)
- {
- status = sanei_genesys_fe_write_data(dev, 0x05 + i, dev->frontend.get_offset(i));
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "%s: failed to write offset %d: %s\n", __func__, i,
- sane_strstatus (status));
- return status;
- }
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-static SANE_Status
-gl846_homsnr_gpio(Genesys_Device *dev)
-{
-uint8_t val;
-SANE_Status status=SANE_STATUS_GOOD;
-
- RIE (sanei_genesys_read_register (dev, REG6C, &val));
- val |= 0x41;
- RIE (sanei_genesys_write_register (dev, REG6C, val));
-
- return status;
-}
-
-/* Set values of analog frontend */
-static SANE_Status
-gl846_set_fe(Genesys_Device * dev, const Genesys_Sensor& sensor, uint8_t set)
-{
- (void) sensor;
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_proc, "%s (%s)\n", __func__, set == AFE_INIT ? "init" : set == AFE_SET ? "set" :
- set == AFE_POWER_SAVE ? "powersave" : "huh?");
-
- /* route to specific analog frontend setup */
- switch (dev->reg.find_reg(0x04).value & REG04_FESET)
- {
- case 0x02: /* ADI FE */
- status = gl846_set_adi_fe(dev, set);
- break;
- default:
- DBG(DBG_proc, "%s(): unsupported frontend type %d\n", __func__,
- dev->reg.find_reg(0x04).value & REG04_FESET);
- status = SANE_STATUS_UNSUPPORTED;
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-
-/** @brief set up motor related register for scan
- */
-static SANE_Status
-gl846_init_motor_regs_scan (Genesys_Device * dev,
- const Genesys_Sensor& sensor,
- Genesys_Register_Set * reg,
- unsigned int scan_exposure_time,
- float scan_yres,
- int scan_step_type,
- unsigned int scan_lines,
- unsigned int scan_dummy,
- unsigned int feed_steps,
- int scan_power_mode,
- unsigned int flags)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int use_fast_fed;
- unsigned int fast_dpi;
- uint16_t scan_table[SLOPE_TABLE_SIZE];
- uint16_t fast_table[SLOPE_TABLE_SIZE];
- int scan_steps, fast_steps, factor;
- unsigned int feedl, dist;
- GenesysRegister *r;
- uint32_t z1, z2;
- unsigned int min_restep = 0x20;
- uint8_t val;
- int fast_step_type;
- unsigned int ccdlmt,tgtime;
-
- DBGSTART;
- DBG(DBG_proc, "%s : scan_exposure_time=%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__, scan_exposure_time,
- scan_yres, scan_step_type, scan_lines, scan_dummy, feed_steps, scan_power_mode, flags);
-
- /* get step multiplier */
- factor = gl846_get_step_multiplier (reg);
-
- use_fast_fed=0;
- /* no fast fed since feed works well */
- if(dev->settings.yres==4444 && feed_steps>100
- && ((flags & MOTOR_FLAG_FEED)==0))
- {
- use_fast_fed=1;
- }
- DBG (DBG_io, "%s: use_fast_fed=%d\n", __func__, use_fast_fed);
-
- sanei_genesys_set_triple(reg, REG_LINCNT, scan_lines);
- DBG (DBG_io, "%s: lincnt=%d\n", __func__, scan_lines);
-
- /* compute register 02 value */
- r = sanei_genesys_get_address (reg, REG02);
- r->value = 0x00;
- sanei_genesys_set_motor_power(*reg, true);
-
- if (use_fast_fed)
- r->value |= REG02_FASTFED;
- else
- r->value &= ~REG02_FASTFED;
-
- if (flags & MOTOR_FLAG_AUTO_GO_HOME)
- r->value |= REG02_AGOHOME | REG02_NOTHOME;
-
- if ((flags & MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE)
- ||(scan_yres>=sensor.optical_res))
- {
- r->value |= REG02_ACDCDIS;
- }
-
- /* scan and backtracking slope table */
- sanei_genesys_slope_table(scan_table,
- &scan_steps,
- scan_yres,
- scan_exposure_time,
- dev->motor.base_ydpi,
- scan_step_type,
- factor,
- dev->model->motor_type,
- gl846_motors);
- RIE(gl846_send_slope_table (dev, SCAN_TABLE, scan_table, scan_steps*factor));
- RIE(gl846_send_slope_table (dev, BACKTRACK_TABLE, scan_table, scan_steps*factor));
-
- /* fast table */
- fast_dpi=sanei_genesys_get_lowest_ydpi(dev);
- fast_step_type=scan_step_type;
- if(scan_step_type>=2)
- {
- fast_step_type=2;
- }
-
- sanei_genesys_slope_table(fast_table,
- &fast_steps,
- fast_dpi,
- scan_exposure_time,
- dev->motor.base_ydpi,
- fast_step_type,
- factor,
- dev->model->motor_type,
- gl846_motors);
-
- /* manual override of high start value */
- fast_table[0]=fast_table[1];
-
- RIE(gl846_send_slope_table (dev, STOP_TABLE, fast_table, fast_steps*factor));
- RIE(gl846_send_slope_table (dev, FAST_TABLE, fast_table, fast_steps*factor));
- RIE(gl846_send_slope_table (dev, HOME_TABLE, fast_table, fast_steps*factor));
-
- /* correct move distance by acceleration and deceleration amounts */
- feedl=feed_steps;
- if (use_fast_fed)
- {
- feedl<<=fast_step_type;
- dist=(scan_steps+2*fast_steps)*factor;
- /* TODO read and decode REGAB */
- r = sanei_genesys_get_address (reg, 0x5e);
- dist += (r->value & 31);
- /* FEDCNT */
- r = sanei_genesys_get_address (reg, REG_FEDCNT);
- dist += r->value;
- }
- else
- {
- feedl<<=scan_step_type;
- dist=scan_steps*factor;
- if (flags & MOTOR_FLAG_FEED)
- dist *=2;
- }
- DBG (DBG_io2, "%s: scan steps=%d\n", __func__, scan_steps);
- DBG (DBG_io2, "%s: acceleration distance=%d\n", __func__, dist);
-
- /* check for overflow */
- if(dist<feedl)
- feedl -= dist;
- else
- feedl = 0;
-
- sanei_genesys_set_triple(reg,REG_FEEDL,feedl);
- DBG (DBG_io ,"%s: feedl=%d\n",__func__,feedl);
-
- r = sanei_genesys_get_address (reg, REG0C);
- ccdlmt=(r->value & REG0C_CCDLMT)+1;
-
- r = sanei_genesys_get_address (reg, REG1C);
- tgtime=1<<(r->value & REG1C_TGTIME);
-
- /* hi res motor speed GPIO */
- /*
- RIE (sanei_genesys_read_register (dev, REG6C, &effective));
- */
-
- /* if quarter step, bipolar Vref2 */
- /* XXX STEF XXX GPIO
- if (scan_step_type > 1)
- {
- if (scan_step_type < 3)
- {
- val = effective & ~REG6C_GPIO13;
- }
- else
- {
- val = effective | REG6C_GPIO13;
- }
- }
- else
- {
- val = effective;
- }
- RIE (sanei_genesys_write_register (dev, REG6C, val));
- */
-
- /* effective scan */
- /*
- RIE (sanei_genesys_read_register (dev, REG6C, &effective));
- val = effective | REG6C_GPIO10;
- RIE (sanei_genesys_write_register (dev, REG6C, val));
- */
-
- if(dev->model->gpo_type==GPO_IMG101)
- {
- if(scan_yres==sanei_genesys_compute_dpihw(dev, sensor,scan_yres))
- {
- val=1;
- }
- else
- {
- val=0;
- }
- RIE (sanei_genesys_write_register (dev, REG7E, val));
- }
-
- min_restep=scan_steps/2-1;
- if (min_restep < 1)
- min_restep = 1;
- r = sanei_genesys_get_address (reg, REG_FWDSTEP);
- r->value = min_restep;
- r = sanei_genesys_get_address (reg, REG_BWDSTEP);
- r->value = min_restep;
-
- sanei_genesys_calculate_zmode2(use_fast_fed,
- scan_exposure_time*ccdlmt*tgtime,
- scan_table,
- scan_steps*factor,
- feedl,
- min_restep*factor,
- &z1,
- &z2);
-
- DBG(DBG_info, "%s: z1 = %d\n", __func__, z1);
- sanei_genesys_set_triple(reg, REG60, z1 | (scan_step_type << (16+REG60S_STEPSEL)));
-
- DBG(DBG_info, "%s: z2 = %d\n", __func__, z2);
- sanei_genesys_set_triple(reg, REG63, z2 | (scan_step_type << (16+REG63S_FSTPSEL)));
-
- r = sanei_genesys_get_address (reg, 0x1e);
- r->value &= 0xf0; /* 0 dummy lines */
- r->value |= scan_dummy; /* dummy lines */
-
- r = sanei_genesys_get_address (reg, REG67);
- r->value = 0x7f;
-
- r = sanei_genesys_get_address (reg, REG68);
- r->value = 0x7f;
-
- r = sanei_genesys_get_address (reg, REG_STEPNO);
- r->value = scan_steps;
-
- r = sanei_genesys_get_address (reg, REG_FASTNO);
- r->value = scan_steps;
-
- r = sanei_genesys_get_address (reg, REG_FSHDEC);
- r->value = scan_steps;
-
- r = sanei_genesys_get_address (reg, REG_FMOVNO);
- r->value = fast_steps;
-
- r = sanei_genesys_get_address (reg, REG_FMOVDEC);
- r->value = fast_steps;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-
-/** @brief set up registers related to sensor
- * Set up the following registers
- 0x01
- 0x03
- 0x10-0x015 R/G/B exposures
- 0x19 EXPDMY
- 0x2e BWHI
- 0x2f BWLO
- 0x04
- 0x87
- 0x05
- 0x2c,0x2d DPISET
- 0x30,0x31 STRPIXEL
- 0x32,0x33 ENDPIXEL
- 0x35,0x36,0x37 MAXWD [25:2] (>>2)
- 0x38,0x39 LPERIOD
- 0x34 DUMMY
- */
-static SANE_Status
-gl846_init_optical_regs_scan (Genesys_Device * dev,
- const Genesys_Sensor& sensor,
- Genesys_Register_Set * reg,
- unsigned int exposure_time,
- int used_res,
- unsigned int start,
- unsigned int pixels,
- int channels,
- int depth,
- SANE_Bool half_ccd, ColorFilter color_filter, int flags)
-{
- unsigned int words_per_line;
- unsigned int startx, endx, used_pixels;
- unsigned int dpiset, dpihw,segnb,cksel,factor;
- unsigned int bytes;
- GenesysRegister *r;
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_proc, "%s : exposure_time=%d, used_res=%d, start=%d, pixels=%d, channels=%d, depth=%d, "
- "half_ccd=%d, flags=%x\n", __func__, exposure_time, used_res, start, pixels, channels, depth,
- half_ccd, flags);
-
- /* resolution is divided according to CKSEL */
- r = sanei_genesys_get_address (reg, REG18);
- cksel= (r->value & REG18_CKSEL)+1;
- DBG(DBG_io2, "%s: cksel=%d\n", __func__, cksel);
-
- /* to manage high resolution device while keeping good
- * low resolution scanning speed, we make hardware dpi vary */
- dpihw=sanei_genesys_compute_dpihw(dev, sensor, used_res * cksel);
- factor=sensor.optical_res/dpihw;
- DBG(DBG_io2, "%s: dpihw=%d (factor=%d)\n", __func__, dpihw, factor);
-
- /* sensor parameters */
- Sensor_Profile* sensor_profile = get_sensor_profile(dev->model->ccd_type, dpihw);
- gl846_setup_sensor(dev, sensor, reg, dpihw);
- dpiset = used_res * cksel;
-
- /* start and end coordinate in optical dpi coordinates */
- startx = start/cksel+sensor.CCD_start_xoffset;
- used_pixels=pixels/cksel;
-
- /* end of sensor window */
- endx = startx + used_pixels;
-
- /* sensors are built from 600 dpi segments for LiDE 100/200
- * and 1200 dpi for the 700F */
- if (dev->model->flags & GENESYS_FLAG_SIS_SENSOR)
- {
- segnb=dpihw/600;
- }
- else
- {
- segnb=1;
- }
-
- /* compute pixel coordinate in the given dpihw space,
- * taking segments into account */
- startx/=factor*segnb;
- endx/=factor*segnb;
- dev->len=endx-startx;
- dev->dist=0;
- dev->skip=0;
-
- /* in cas of multi-segments sensor, we have to add the witdh
- * of the sensor crossed by the scan area */
- if (dev->model->flags & GENESYS_FLAG_SIS_SENSOR && segnb>1)
- {
- dev->dist = sensor_profile->segcnt;
- }
-
- /* use a segcnt rounded to next even number */
- endx += ((dev->dist+1)&0xfffe)*(segnb-1);
- used_pixels=endx-startx;
-
- status = gl846_set_fe(dev, sensor, AFE_SET);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set frontend: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* enable shading */
- r = sanei_genesys_get_address (reg, REG01);
- r->value &= ~REG01_SCAN;
- r->value |= REG01_SHDAREA;
- if ((flags & OPTICAL_FLAG_DISABLE_SHADING) ||
- (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION))
- {
- r->value &= ~REG01_DVDSET;
- }
- else
- {
- r->value |= REG01_DVDSET;
- }
-
- r = sanei_genesys_get_address (reg, REG03);
- r->value &= ~REG03_AVEENB;
-
- sanei_genesys_set_lamp_power(dev, sensor, *reg, !(flags & OPTICAL_FLAG_DISABLE_LAMP));
-
- /* BW threshold */
- r = sanei_genesys_get_address (reg, 0x2e);
- r->value = dev->settings.threshold;
- r = sanei_genesys_get_address (reg, 0x2f);
- r->value = dev->settings.threshold;
-
- /* monochrome / color scan */
- r = sanei_genesys_get_address (reg, REG04);
- switch (depth)
- {
- case 1:
- r->value &= ~REG04_BITSET;
- r->value |= REG04_LINEART;
- break;
- case 8:
- r->value &= ~(REG04_LINEART | REG04_BITSET);
- break;
- case 16:
- r->value &= ~REG04_LINEART;
- r->value |= REG04_BITSET;
- break;
- }
-
- r->value &= ~(REG04_FILTER | REG04_AFEMOD);
- if (channels == 1)
- {
- switch (color_filter)
- {
- case ColorFilter::RED:
- r->value |= 0x24;
- break;
- case ColorFilter::BLUE:
- r->value |= 0x2c;
- break;
- case ColorFilter::GREEN:
- r->value |= 0x28;
- break;
- default:
- break; // should not happen
- }
- }
- else
- r->value |= 0x20; /* mono */
-
- /* register 05 */
- r = sanei_genesys_get_address (reg, REG05);
-
- /* set up dpihw */
- r->value &= ~REG05_DPIHW;
- switch(dpihw)
- {
- case 600:
- r->value |= REG05_DPIHW_600;
- break;
- case 1200:
- r->value |= REG05_DPIHW_1200;
- break;
- case 2400:
- r->value |= REG05_DPIHW_2400;
- break;
- case 4800:
- r->value |= REG05_DPIHW_4800;
- break;
- }
-
- /* enable gamma tables */
- if (flags & OPTICAL_FLAG_DISABLE_GAMMA)
- r->value &= ~REG05_GMMENB;
- else
- r->value |= REG05_GMMENB;
-
- /* CIS scanners can do true gray by setting LEDADD */
- /* we set up LEDADD only when asked */
- if (dev->model->is_cis == SANE_TRUE)
- {
- r = sanei_genesys_get_address (reg, 0x87);
- r->value &= ~REG87_LEDADD;
- if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD))
- {
- r->value |= REG87_LEDADD;
- }
- /* RGB weighting
- r = sanei_genesys_get_address (reg, 0x01);
- r->value &= ~REG01_TRUEGRAY;
- if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD))
- {
- r->value |= REG01_TRUEGRAY;
- }*/
- }
-
- /* words(16bit) before gamma, conversion to 8 bit or lineart*/
- words_per_line = (used_pixels * dpiset) / dpihw;
- bytes=depth/8;
- if (depth == 1)
- {
- words_per_line = (words_per_line+7)/8 ;
- dev->len = (dev->len >> 3) + ((dev->len & 7) ? 1 : 0);
- dev->dist = (dev->dist >> 3) + ((dev->dist & 7) ? 1 : 0);
- }
- else
- {
- words_per_line *= bytes;
- dev->dist *= bytes;
- dev->len *= bytes;
- }
-
- dev->bpl = words_per_line;
- dev->cur=0;
- dev->segnb=segnb;
- dev->line_interp = 0;
-
- sanei_genesys_set_double(reg,REG_DPISET,dpiset);
- DBG (DBG_io2, "%s: dpiset used=%d\n", __func__, dpiset);
-
- sanei_genesys_set_double(reg,REG_STRPIXEL,startx);
- sanei_genesys_set_double(reg,REG_ENDPIXEL,endx);
- DBG (DBG_io2, "%s: startx=%d\n", __func__, startx);
- DBG (DBG_io2, "%s: endx =%d\n", __func__, endx);
-
- DBG (DBG_io2, "%s: used_pixels=%d\n", __func__, used_pixels);
- DBG (DBG_io2, "%s: pixels =%d\n", __func__, pixels);
- DBG (DBG_io2, "%s: depth =%d\n", __func__, depth);
- DBG (DBG_io2, "%s: dev->bpl =%lu\n", __func__, (unsigned long)dev->bpl);
- DBG (DBG_io2, "%s: dev->len =%lu\n", __func__, (unsigned long)dev->len);
- DBG (DBG_io2, "%s: dev->dist =%lu\n", __func__, (unsigned long)dev->dist);
- DBG (DBG_io2, "%s: dev->segnb =%lu\n", __func__, (unsigned long)dev->segnb);
-
- words_per_line *= channels;
- dev->wpl = words_per_line;
-
- dev->oe_buffer.clear();
- dev->oe_buffer.alloc(dev->wpl);
-
- /* MAXWD is expressed in 4 words unit */
- sanei_genesys_set_triple(reg, REG_MAXWD, (words_per_line >> 2));
- DBG (DBG_io2, "%s: words_per_line used=%d\n", __func__, words_per_line);
-
- sanei_genesys_set_double(reg, REG_LPERIOD, exposure_time);
- DBG (DBG_io2, "%s: exposure_time used=%d\n", __func__, exposure_time);
-
- r = sanei_genesys_get_address (reg, 0x34);
- r->value = sensor.dummy_pixel;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-/* set up registers for an actual scan
- *
- * this function sets up the scanner to scan in normal or single line mode
- */
-static SANE_Status
-gl846_init_scan_regs(Genesys_Device * dev, const Genesys_Sensor& sensor, Genesys_Register_Set * reg,
- SetupParams& params)
-{
- params.assert_valid();
-
- int used_res;
- int start, used_pixels;
- int bytes_per_line;
- int move;
- unsigned int lincnt;
- unsigned int oflags; /**> optical flags */
- unsigned int mflags; /**> motor flags */
- int exposure_time;
- int stagger;
-
- int slope_dpi = 0;
- int dummy = 0;
- int scan_step_type = 1;
- int scan_power_mode = 0;
- int max_shift;
- size_t requested_buffer_size, read_buffer_size;
-
- SANE_Bool half_ccd; /* false: full CCD res is used, true, half max CCD res is used */
- int optical_res;
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_info, "%s ", __func__);
- debug_dump(DBG_info, params);
-
- /* we may have 2 domains for ccd: xres below or above half ccd max dpi */
- if (sensor.get_ccd_size_divisor_for_dpi(params.xres) > 1)
- {
- half_ccd = SANE_TRUE;
- }
- else
- {
- half_ccd = SANE_FALSE;
- }
-
- /* optical_res */
- optical_res = sensor.optical_res;
- if (half_ccd)
- optical_res /= 2;
-
- /* stagger */
- if ((!half_ccd) && (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE))
- stagger = (4 * params.yres) / dev->motor.base_ydpi;
- else
- stagger = 0;
- DBG(DBG_info, "%s : stagger=%d lines\n", __func__, stagger);
-
- /* used_res */
- if (params.flags & SCAN_FLAG_USE_OPTICAL_RES)
- {
- used_res = optical_res;
- }
- else
- {
- /* resolution is choosen from a list */
- used_res = params.xres;
- }
-
- /* compute scan parameters values */
- /* pixels are allways given at full optical resolution */
- /* use detected left margin and fixed value */
- /* start */
- /* add x coordinates */
- start = params.startx;
-
- if (stagger > 0)
- start |= 1;
-
- /* compute correct pixels number */
- /* pixels */
- used_pixels = (params.pixels * optical_res) / params.xres;
-
- /* round up pixels number if needed */
- if (used_pixels * params.xres < params.pixels * optical_res)
- used_pixels++;
-
- dummy = 3-params.channels;
-
-/* slope_dpi */
-/* cis color scan is effectively a gray scan with 3 gray lines per color
- line and a FILTER of 0 */
- if (dev->model->is_cis)
- slope_dpi = params.yres * params.channels;
- else
- slope_dpi = params.yres;
-
- slope_dpi = slope_dpi * (1 + dummy);
-
- exposure_time = gl846_compute_exposure (dev, used_res);
- scan_step_type = sanei_genesys_compute_step_type(gl846_motors, dev->model->motor_type, exposure_time);
-
- DBG(DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time);
- DBG(DBG_info, "%s : scan_step_type=%d\n", __func__, scan_step_type);
-
-/*** optical parameters ***/
- /* in case of dynamic lineart, we use an internal 8 bit gray scan
- * to generate 1 lineart data */
- if (params.flags & SCAN_FLAG_DYNAMIC_LINEART) {
- params.depth = 8;
- }
-
- /* we enable true gray for cis scanners only, and just when doing
- * scan since color calibration is OK for this mode
- */
- oflags = 0;
- if(params.flags & SCAN_FLAG_DISABLE_SHADING)
- oflags |= OPTICAL_FLAG_DISABLE_SHADING;
- if(params.flags & SCAN_FLAG_DISABLE_GAMMA)
- oflags |= OPTICAL_FLAG_DISABLE_GAMMA;
- if(params.flags & SCAN_FLAG_DISABLE_LAMP)
- oflags |= OPTICAL_FLAG_DISABLE_LAMP;
-
- if (dev->model->is_cis && dev->settings.true_gray)
- {
- oflags |= OPTICAL_FLAG_ENABLE_LEDADD;
- }
-
- status = gl846_init_optical_regs_scan (dev, sensor,
- reg,
- exposure_time,
- used_res,
- start,
- used_pixels,
- params.channels,
- params.depth,
- half_ccd,
- params.color_filter,
- oflags);
-
- if (status != SANE_STATUS_GOOD)
- return status;
-
-/*** motor parameters ***/
-
- /* max_shift */
- max_shift=sanei_genesys_compute_max_shift(dev,params.channels,params.yres,params.flags);
-
- /* lincnt */
- lincnt = params.lines + max_shift + stagger;
-
- /* add tl_y to base movement */
- move = params.starty;
- DBG(DBG_info, "%s: move=%d steps\n", __func__, move);
-
- mflags=0;
- if(params.flags & SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE)
- mflags |= MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE;
- if(params.flags & SCAN_FLAG_FEEDING)
- mflags |= MOTOR_FLAG_FEED;
-
- status = gl846_init_motor_regs_scan (dev, sensor,
- reg,
- exposure_time,
- slope_dpi,
- scan_step_type,
- dev->model->is_cis ? lincnt *
- params.channels : lincnt, dummy, move,
- scan_power_mode,
- mflags);
-
- if (status != SANE_STATUS_GOOD)
- return status;
-
-
- /*** prepares data reordering ***/
-
-/* words_per_line */
- bytes_per_line = (used_pixels * used_res) / optical_res;
- bytes_per_line = (bytes_per_line * params.channels * params.depth) / 8;
-
- requested_buffer_size = 8 * bytes_per_line;
-
- read_buffer_size =
- 2 * requested_buffer_size +
- ((max_shift + stagger) * used_pixels * params.channels * params.depth) / 8;
-
- dev->read_buffer.clear();
- dev->read_buffer.alloc(read_buffer_size);
-
- dev->lines_buffer.clear();
- dev->lines_buffer.alloc(read_buffer_size);
-
- dev->shrink_buffer.clear();
- dev->shrink_buffer.alloc(requested_buffer_size);
-
- dev->out_buffer.clear();
- dev->out_buffer.alloc((8 * params.pixels * params.channels * params.depth) / 8);
-
- dev->read_bytes_left = bytes_per_line * lincnt;
-
- DBG(DBG_info, "%s: physical bytes to read = %lu\n", __func__, (u_long) dev->read_bytes_left);
- dev->read_active = SANE_TRUE;
-
- dev->current_setup.params = params;
- dev->current_setup.pixels = (used_pixels * used_res) / optical_res;
- dev->current_setup.lines = lincnt;
- dev->current_setup.depth = params.depth;
- dev->current_setup.channels = params.channels;
- dev->current_setup.exposure_time = exposure_time;
- dev->current_setup.xres = used_res;
- dev->current_setup.yres = params.yres;
- dev->current_setup.ccd_size_divisor = half_ccd ? 2 : 1;
- dev->current_setup.stagger = stagger;
- dev->current_setup.max_shift = max_shift + stagger;
-
-/* TODO: should this be done elsewhere? */
- /* scan bytes to send to the frontend */
- /* theory :
- target_size =
- (params.pixels * params.lines * channels * depth) / 8;
- but it suffers from integer overflow so we do the following:
-
- 1 bit color images store color data byte-wise, eg byte 0 contains
- 8 bits of red data, byte 1 contains 8 bits of green, byte 2 contains
- 8 bits of blue.
- This does not fix the overflow, though.
- 644mp*16 = 10gp, leading to an overflow
- -- pierre
- */
-
- dev->total_bytes_read = 0;
- if (params.depth == 1)
- dev->total_bytes_to_read =
- ((params.pixels * params.lines) / 8 +
- (((params.pixels * params.lines) % 8) ? 1 : 0)) *
- params.channels;
- else
- dev->total_bytes_to_read =
- params.pixels * params.lines * params.channels * (params.depth / 8);
-
- DBG(DBG_info, "%s: total bytes to send = %lu\n", __func__, (u_long) dev->total_bytes_to_read);
-/* END TODO */
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-static void
-gl846_calculate_current_setup(Genesys_Device * dev, const Genesys_Sensor& sensor)
-{
- int channels;
- int depth;
- int start;
-
- int used_res;
- int used_pixels;
- unsigned int lincnt;
- int exposure_time;
- int stagger;
-
- int slope_dpi;
- int dummy = 0;
- int max_shift;
-
- SANE_Bool half_ccd; /* false: full CCD res is used, true, half max CCD res is used */
- int optical_res;
-
- DBG(DBG_info, "%s ", __func__);
- debug_dump(DBG_info, dev->settings);
-
- /* channels */
- if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS)
- channels = 3;
- else
- channels = 1;
-
- /* depth */
- depth = dev->settings.depth;
- if (dev->settings.scan_mode == ScanColorMode::LINEART)
- depth = 1;
-
- /* start */
- start = SANE_UNFIX (dev->model->x_offset);
- start += dev->settings.tl_x;
- start = (start * sensor.optical_res) / MM_PER_INCH;
-
-
- SetupParams params;
- params.xres = dev->settings.xres;
- params.yres = dev->settings.yres;
- params.startx = start; // not used
- params.starty = 0; // not used
- params.pixels = dev->settings.pixels;
- params.lines = dev->settings.lines;
- params.depth = depth;
- params.channels = channels;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = dev->settings.scan_mode;
- params.color_filter = dev->settings.color_filter;
- params.flags = 0;
-
- DBG(DBG_info, "%s ", __func__);
- debug_dump(DBG_info, params);
-
-/* half_ccd */
- /* we have 2 domains for ccd: xres below or above half ccd max dpi */
- if (sensor.get_ccd_size_divisor_for_dpi(params.xres) > 1) {
- half_ccd = SANE_TRUE;
- } else {
- half_ccd = SANE_FALSE;
- }
-
- /* optical_res */
- optical_res = sensor.optical_res;
-
- /* stagger */
- if (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE)
- stagger = (4 * params.yres) / dev->motor.base_ydpi;
- else
- stagger = 0;
- DBG(DBG_info, "%s: stagger=%d lines\n", __func__, stagger);
-
- /* resolution is choosen from a fixed list */
- used_res = params.xres;
-
- /* compute scan parameters values */
- /* pixels are allways given at half or full CCD optical resolution */
- /* use detected left margin and fixed value */
-
- /* compute correct pixels number */
- used_pixels = (params.pixels * optical_res) / used_res;
- dummy = 3 - params.channels;
-
- /* cis color scan is effectively a gray scan with 3 gray lines per color
- line and a FILTER of 0 */
- if (dev->model->is_cis) {
- slope_dpi = params.yres * params.channels;
- } else {
- slope_dpi = params.yres;
- }
-
- slope_dpi = slope_dpi * (1 + dummy);
-
- exposure_time = gl846_compute_exposure (dev, used_res);
- DBG(DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time);
-
- max_shift = sanei_genesys_compute_max_shift(dev, params.channels, params.yres, 0);
-
- /* lincnt */
- lincnt = params.lines + max_shift + stagger;
-
- dev->current_setup.params = params;
- dev->current_setup.pixels = (used_pixels * used_res) / optical_res;
- dev->current_setup.lines = lincnt;
- dev->current_setup.depth = params.depth;
- dev->current_setup.channels = params.channels;
- dev->current_setup.exposure_time = exposure_time;
- dev->current_setup.xres = used_res;
- dev->current_setup.yres = params.yres;
- dev->current_setup.ccd_size_divisor = half_ccd ? 2 : 1;
- dev->current_setup.stagger = stagger;
- dev->current_setup.max_shift = max_shift + stagger;
-
- DBGCOMPLETED;
-}
-
-/*for fast power saving methods only, like disabling certain amplifiers*/
-static SANE_Status
-gl846_save_power (Genesys_Device * dev, SANE_Bool enable)
-{
- DBG(DBG_proc, "%s: enable = %d\n", __func__, enable);
- if (dev == NULL)
- return SANE_STATUS_INVAL;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-gl846_set_powersaving (Genesys_Device * dev, int delay /* in minutes */ )
-{
- DBG(DBG_proc, "%s (delay = %d)\n", __func__, delay);
- if (dev == NULL)
- return SANE_STATUS_INVAL;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-gl846_start_action (Genesys_Device * dev)
-{
- return sanei_genesys_write_register (dev, 0x0f, 0x01);
-}
-
-static SANE_Status
-gl846_stop_action (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val40, val;
- unsigned int loop;
-
- DBGSTART;
-
- /* post scan gpio : without that HOMSNR is unreliable */
- gl846_homsnr_gpio(dev);
- status = sanei_genesys_get_status (dev, &val);
- if (DBG_LEVEL >= DBG_io)
- {
- sanei_genesys_print_status (val);
- }
-
- status = sanei_genesys_read_register (dev, REG40, &val40);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status));
- DBGCOMPLETED;
- return status;
- }
-
- /* only stop action if needed */
- if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG))
- {
- DBG(DBG_info, "%s: already stopped\n", __func__);
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
- }
-
- /* ends scan */
- val = dev->reg.get8(REG01);
- val &= ~REG01_SCAN;
- 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);
- }
- status = sanei_genesys_read_register (dev, REG40, &val40);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status));
- DBGCOMPLETED;
- return status;
- }
-
- /* if scanner is in command mode, we are done */
- if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG)
- && !(val & REG41_MOTORENB))
- {
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
- }
-
- sanei_genesys_sleep_ms(100);
- loop--;
- }
-
- DBGCOMPLETED;
- return SANE_STATUS_IO_ERROR;
-}
-
-/* Send the low-level scan command */
-static SANE_Status
-gl846_begin_scan (Genesys_Device * dev, const Genesys_Sensor& sensor, Genesys_Register_Set * reg,
- SANE_Bool start_motor)
-{
- (void) sensor;
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val;
- GenesysRegister *r;
-
- DBGSTART;
-
- /* XXX STEF XXX SCAN GPIO */
- /*
- RIE (sanei_genesys_read_register (dev, REG6C, &val));
- RIE (sanei_genesys_write_register (dev, REG6C, val));
- */
-
- val = REG0D_CLRLNCNT;
- RIE (sanei_genesys_write_register (dev, REG0D, val));
- val = REG0D_CLRMCNT;
- RIE (sanei_genesys_write_register (dev, REG0D, val));
-
- RIE (sanei_genesys_read_register (dev, REG01, &val));
- val |= REG01_SCAN;
- RIE (sanei_genesys_write_register (dev, REG01, val));
- r = sanei_genesys_get_address (reg, REG01);
- r->value = val;
-
- if (start_motor)
- {
- RIE (sanei_genesys_write_register (dev, REG0F, 1));
- }
- else
- {
- RIE (sanei_genesys_write_register (dev, REG0F, 0));
- }
-
- DBGCOMPLETED;
-
- return status;
-}
-
-
-/* Send the stop scan command */
-static SANE_Status
-gl846_end_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
- SANE_Bool check_stop)
-{
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_proc, "%s (check_stop = %d)\n", __func__, check_stop);
- if (reg == NULL)
- return SANE_STATUS_INVAL;
-
- if (dev->model->is_sheetfed == SANE_TRUE)
- {
- status = SANE_STATUS_GOOD;
- }
- else /* flat bed scanners */
- {
- status = gl846_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;
-}
-
-/* Moves the slider to the home (top) postion slowly */
-static SANE_Status
-gl846_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home)
-{
- Genesys_Register_Set local_reg;
- SANE_Status status = SANE_STATUS_GOOD;
- GenesysRegister *r;
- float resolution;
- uint8_t val;
- int loop = 0;
- ScanColorMode scan_mode;
-
- DBG(DBG_proc, "%s (wait_until_home = %d)\n", __func__, wait_until_home);
-
- /* post scan gpio : without that HOMSNR is unreliable */
- gl846_homsnr_gpio(dev);
-
- /* first read gives HOME_SENSOR true */
- status = sanei_genesys_get_status (dev, &val);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status));
- return status;
- }
- if (DBG_LEVEL >= DBG_io)
- {
- sanei_genesys_print_status (val);
- }
- sanei_genesys_sleep_ms(100);
-
- /* second is reliable */
- status = sanei_genesys_get_status (dev, &val);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status));
- return status;
- }
- if (DBG_LEVEL >= DBG_io)
- {
- sanei_genesys_print_status (val);
- }
-
- /* is sensor at home? */
- if (val & HOMESNR)
- {
- DBG(DBG_info, "%s: already at home, completed\n", __func__);
- dev->scanhead_position_in_steps = 0;
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
- }
-
- local_reg = dev->reg;
-
- resolution=sanei_genesys_get_lowest_ydpi(dev);
-
- const auto& sensor = sanei_genesys_find_sensor_any(dev);
-
- /* TODO add scan_mode to the API */
- scan_mode= dev->settings.scan_mode;
- dev->settings.scan_mode = ScanColorMode::LINEART;
-
- SetupParams params;
- params.xres = resolution;
- params.yres = resolution;
- params.startx = 100;
- params.starty = 30000;
- params.pixels = 100;
- params.lines = 100;
- params.depth = 8;
- params.channels = 1;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = ScanColorMode::GRAY;
- params.color_filter = ColorFilter::RED;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- status = gl846_init_scan_regs(dev, sensor, &local_reg, params);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status));
- DBGCOMPLETED;
- return status;
- }
- dev->settings.scan_mode=scan_mode;
-
- /* clear scan and feed count */
- RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT));
-
- /* set up for reverse */
- r = sanei_genesys_get_address(&local_reg, REG02);
- r->value |= REG02_MTRREV;
-
- RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg));
-
- try {
- status = gl846_start_action(dev);
- } catch (...) {
- DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status));
- try {
- gl846_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));
- gl846_stop_action (dev);
- /* send original registers */
- dev->model->cmd_set->bulk_write_register(dev, dev->reg);
- return status;
- }
-
- /* post scan gpio : without that HOMSNR is unreliable */
- gl846_homsnr_gpio(dev);
-
- if (wait_until_home)
- {
- while (loop < 300) /* do not wait longer then 30 seconds */
- {
- status = sanei_genesys_get_status (dev, &val);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__,
- sane_strstatus(status));
- return status;
- }
-
- if (val & HOMESNR) /* home sensor */
- {
- DBG(DBG_info, "%s: reached home position\n", __func__);
- gl846_stop_action (dev);
- dev->scanhead_position_in_steps = 0;
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
- }
- sanei_genesys_sleep_ms(100);
- ++loop;
- }
-
- /* when we come here then the scanner needed too much time for this, so we better stop the motor */
- gl846_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
-gl846_search_start_position (Genesys_Device * dev)
-{
- int size;
- SANE_Status status = SANE_STATUS_GOOD;
- Genesys_Register_Set local_reg;
- int steps;
-
- int pixels = 600;
- int dpi = 300;
-
- DBG(DBG_proc, "%s\n", __func__);
-
- local_reg = dev->reg;
-
- /* sets for a 200 lines * 600 pixels */
- /* normal scan with no shading */
-
- // FIXME: the current approach of doing search only for one resolution does not work on scanners
- // whith employ different sensors with potentially different settings.
- auto& sensor = sanei_genesys_find_sensor_for_write(dev, dpi);
-
- SetupParams params;
- params.xres = dpi;
- params.yres = dpi;
- params.startx = 0;
- params.starty = 0; /*we should give a small offset here~60 steps */
- params.pixels = 600;
- params.lines = dev->model->search_lines;
- params.depth = 8;
- params.channels = 1;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = ScanColorMode::GRAY;
- params.color_filter = ColorFilter::GREEN;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- status = gl846_init_scan_regs(dev, sensor, &local_reg, params);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status));
- DBGCOMPLETED;
- return status;
- }
-
- /* send to scanner */
- status = dev->model->cmd_set->bulk_write_register(dev, local_reg);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
- DBGCOMPLETED;
- return status;
- }
-
- size = pixels * dev->model->search_lines;
-
- std::vector<uint8_t> data(size);
-
- status = gl846_begin_scan(dev, sensor, &local_reg, SANE_TRUE);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* waits for valid data */
- do
- sanei_genesys_test_buffer_empty (dev, &steps);
- while (steps);
-
- /* now we're on target, we can read data */
- status = sanei_genesys_read_data_from_scanner(dev, data.data(), size);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- if (DBG_LEVEL >= DBG_data)
- sanei_genesys_write_pnm_file("gl846_search_position.pnm", data.data(), 8, 1, pixels,
- dev->model->search_lines);
-
- status = gl846_end_scan (dev, &local_reg, SANE_TRUE);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to end scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* update regs to copy ASIC internal state */
- dev->reg = local_reg;
-
-/*TODO: find out where sanei_genesys_search_reference_point
- stores information, and use that correctly*/
- status =
- sanei_genesys_search_reference_point (dev, sensor, data.data(), 0, dpi, pixels,
- dev->model->search_lines);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set search reference point: %s\n", __func__,
- sane_strstatus(status));
- return status;
- }
-
- return SANE_STATUS_GOOD;
-}
-
-/*
- * sets up register for coarse gain calibration
- * todo: check it for scanners using it */
-static SANE_Status
-gl846_init_regs_for_coarse_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set& regs)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t channels;
- uint8_t cksel;
-
- DBG(DBG_proc, "%s\n", __func__);
-
-
- cksel = (regs.find_reg(0x18).value & REG18_CKSEL) + 1; /* clock speed = 1..4 clocks */
-
- /* set line size */
- if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS)
- channels = 3;
- else {
- channels = 1;
- }
-
- SetupParams params;
- params.xres = dev->settings.xres;
- params.yres = dev->settings.yres;
- params.startx = 0;
- params.starty = 0;
- params.pixels = sensor.optical_res / cksel;
- params.lines = 20;
- params.depth = 16;
- params.channels = channels;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = dev->settings.scan_mode;
- params.color_filter = dev->settings.color_filter;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- status = gl846_init_scan_regs(dev, sensor, &regs, params);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: Failed to setup scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- DBG(DBG_info, "%s: optical sensor res: %d dpi, actual res: %d\n", __func__,
- sensor.optical_res / cksel, dev->settings.xres);
-
- status = dev->model->cmd_set->bulk_write_register(dev, regs);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: Failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-/** @brief moves the slider to steps at motor base dpi
- * @param dev device to work on
- * @param steps number of steps to move in base_dpi line count
- * */
-static SANE_Status
-gl846_feed (Genesys_Device * dev, unsigned int steps)
-{
- Genesys_Register_Set local_reg;
- SANE_Status status = SANE_STATUS_GOOD;
- GenesysRegister *r;
- float resolution;
- uint8_t val;
-
- DBGSTART;
- DBG(DBG_io, "%s: steps=%d\n", __func__, steps);
-
- /* prepare local registers */
- local_reg = dev->reg;
-
- resolution=sanei_genesys_get_lowest_ydpi(dev);
- const auto& sensor = sanei_genesys_find_sensor(dev, resolution);
-
- SetupParams params;
- params.xres = resolution;
- params.yres = resolution;
- params.startx = 0;
- params.starty = steps;
- params.pixels = 100;
- params.lines = 3;
- params.depth = 8;
- params.channels = 3;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- params.color_filter = dev->settings.color_filter;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_FEEDING |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- status = gl846_init_scan_regs(dev, sensor, &local_reg, params);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status));
- DBGCOMPLETED;
- return status;
- }
-
- /* set exposure to zero */
- sanei_genesys_set_triple(&local_reg,REG_EXPR,0);
- sanei_genesys_set_triple(&local_reg,REG_EXPG,0);
- sanei_genesys_set_triple(&local_reg,REG_EXPB,0);
-
- /* clear scan and feed count */
- RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT));
- RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRMCNT));
-
- /* set up for no scan */
- r = sanei_genesys_get_address(&local_reg, REG01);
- r->value &= ~REG01_SCAN;
-
- /* send registers */
- RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg));
-
- try {
- status = gl846_start_action (dev);
- } catch (...) {
- DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status));
- try {
- gl846_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));
- gl846_stop_action (dev);
-
- /* restore original registers */
- dev->model->cmd_set->bulk_write_register(dev, dev->reg);
- return status;
- }
-
- /* wait until feed count reaches the required value, but do not
- * exceed 30s */
- do
- {
- status = sanei_genesys_get_status (dev, &val);
- }
- while (status == SANE_STATUS_GOOD && !(val & FEEDFSH));
-
- /* then stop scanning */
- RIE(gl846_stop_action (dev));
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-
-/* init registers for shading calibration */
-static SANE_Status
-gl846_init_regs_for_shading(Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set& regs)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- float move;
-
- DBGSTART;
- dev->calib_channels = 3;
-
- /* initial calibration reg values */
- regs = dev->reg;
-
- dev->calib_resolution = sanei_genesys_compute_dpihw(dev, sensor, dev->settings.xres);
- dev->calib_total_bytes_to_read = 0;
- dev->calib_lines = dev->model->shading_lines;
- if(dev->calib_resolution==4800)
- dev->calib_lines *= 2;
- dev->calib_pixels = (sensor.sensor_pixels*dev->calib_resolution)/sensor.optical_res;
- DBG(DBG_io, "%s: calib_lines = %d\n", __func__, (unsigned int)dev->calib_lines);
- DBG(DBG_io, "%s: calib_pixels = %d\n", __func__, (unsigned int)dev->calib_pixels);
-
- /* this is aworkaround insufficent distance for slope
- * motor acceleration TODO special motor slope for shading */
- move=1;
- if(dev->calib_resolution<1200)
- {
- move=40;
- }
-
- SetupParams params;
- params.xres = dev->calib_resolution;
- params.yres = dev->calib_resolution;
- params.startx = 0;
- params.starty = move;
- params.pixels = dev->calib_pixels;
- params.lines = dev->calib_lines;
- params.depth = 16;
- params.channels = dev->calib_channels;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- params.color_filter = dev->settings.color_filter;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- status = gl846_init_scan_regs(dev, sensor, &regs, params);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- status = dev->model->cmd_set->bulk_write_register(dev, regs);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* we use GENESYS_FLAG_SHADING_REPARK */
- dev->scanhead_position_in_steps = 0;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-/** @brief set up registers for the actual scan
- */
-static SANE_Status
-gl846_init_regs_for_scan (Genesys_Device * dev, const Genesys_Sensor& sensor)
-{
- int channels;
- int flags;
- int depth;
- float move;
- int move_dpi;
- float start;
-
- SANE_Status status = SANE_STATUS_GOOD;
-
- DBG(DBG_info, "%s ", __func__);
- debug_dump(DBG_info, dev->settings);
-
- /* channels */
- if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS)
- channels = 3;
- else
- channels = 1;
-
- /* depth */
- depth = dev->settings.depth;
- if (dev->settings.scan_mode == ScanColorMode::LINEART)
- depth = 1;
-
-
- /* steps to move to reach scanning area:
- - first we move to physical start of scanning
- either by a fixed steps amount from the black strip
- or by a fixed amount from parking position,
- minus the steps done during shading calibration
- - then we move by the needed offset whitin physical
- scanning area
-
- assumption: steps are expressed at maximum motor resolution
-
- we need:
- SANE_Fixed y_offset;
- SANE_Fixed y_size;
- SANE_Fixed y_offset_calib;
- mm_to_steps()=motor dpi / 2.54 / 10=motor dpi / MM_PER_INCH */
-
- /* if scanner uses GENESYS_FLAG_SEARCH_START y_offset is
- relative from origin, else, it is from parking position */
-
- move_dpi = dev->motor.base_ydpi;
-
- move = SANE_UNFIX (dev->model->y_offset);
- move += dev->settings.tl_y;
- move = (move * move_dpi) / MM_PER_INCH;
- move -= dev->scanhead_position_in_steps;
- DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
-
- /* fast move to scan area */
- /* we don't move fast the whole distance since it would involve
- * computing acceleration/deceleration distance for scan
- * resolution. So leave a remainder for it so scan makes the final
- * move tuning */
- if(channels*dev->settings.yres>=600 && move>700)
- {
- status = gl846_feed (dev, move-500);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to move to scan area\n", __func__);
- return status;
- }
- move=500;
- }
-
- DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
- DBG(DBG_info, "%s: move=%f steps\n", __func__, move);
-
- /* start */
- start = SANE_UNFIX (dev->model->x_offset);
- start += dev->settings.tl_x;
- start = (start * sensor.optical_res) / MM_PER_INCH;
-
- flags = 0;
-
- /* emulated lineart from gray data is required for now */
- if(dev->settings.scan_mode == ScanColorMode::LINEART
- && dev->settings.dynamic_lineart)
- {
- flags |= SCAN_FLAG_DYNAMIC_LINEART;
- }
-
- /* backtracking isn't handled well, so don't enable it */
- flags |= SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE;
-
- SetupParams params;
- params.xres = dev->settings.xres;
- params.yres = dev->settings.yres;
- params.startx = start;
- params.starty = move;
- params.pixels = dev->settings.pixels;
- params.lines = dev->settings.lines;
- params.depth = depth;
- params.channels = channels;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = dev->settings.scan_mode;
- params.color_filter = dev->settings.color_filter;
- params.flags = flags;
-
- status = gl846_init_scan_regs(dev, sensor, &dev->reg, params);
-
- if (status != SANE_STATUS_GOOD)
- return status;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-
-/**
- * Send shading calibration data. The buffer is considered to always hold values
- * for all the channels.
- */
-static SANE_Status
-gl846_send_shading_data (Genesys_Device * dev, const Genesys_Sensor& sensor,
- uint8_t * data, int size)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint32_t addr, length, i, x, factor, pixels;
- uint32_t dpiset, dpihw, strpixel, endpixel;
- uint16_t tempo;
- uint32_t lines, channels;
- uint8_t val,*ptr,*src;
-
- DBGSTART;
- DBG(DBG_io2, "%s: writing %d bytes of shading data\n", __func__, size);
-
- /* shading data is plit in 3 (up to 5 with IR) areas
- write(0x10014000,0x00000dd8)
- URB 23429 bulk_out len 3544 wrote 0x33 0x10 0x....
- write(0x1003e000,0x00000dd8)
- write(0x10068000,0x00000dd8)
- */
- length = (uint32_t) (size / 3);
- sanei_genesys_get_double(&dev->reg,REG_STRPIXEL,&tempo);
- strpixel=tempo;
- sanei_genesys_get_double(&dev->reg,REG_ENDPIXEL,&tempo);
- endpixel=tempo;
-
- /* compute deletion factor */
- sanei_genesys_get_double(&dev->reg,REG_DPISET,&tempo);
- dpiset=tempo;
- DBG(DBG_io2, "%s: STRPIXEL=%d, ENDPIXEL=%d, PIXELS=%d, DPISET=%d\n", __func__, strpixel, endpixel,
- endpixel-strpixel, dpiset);
- dpihw=sanei_genesys_compute_dpihw(dev, sensor, dpiset);
- factor=dpihw/dpiset;
- DBG(DBG_io2, "%s: factor=%d\n", __func__, factor);
-
- if(DBG_LEVEL>=DBG_data)
- {
- dev->binary=fopen("binary.pnm","wb");
- sanei_genesys_get_triple(&dev->reg, REG_LINCNT, &lines);
- channels=dev->current_setup.channels;
- if(dev->binary!=NULL)
- {
- fprintf(dev->binary,"P5\n%d %d\n%d\n",(endpixel-strpixel)/factor*channels,lines/channels,255);
- }
- }
-
- pixels=endpixel-strpixel;
-
- /* since we're using SHDAREA, substract startx coordinate from shading */
- strpixel-=((sensor.CCD_start_xoffset*600)/sensor.optical_res);
-
- /* turn pixel value into bytes 2x16 bits words */
- strpixel*=2*2;
- pixels*=2*2;
-
- std::vector<uint8_t> buffer(pixels, 0);
-
- DBG(DBG_io2, "%s: using chunks of %d (0x%04x) bytes\n", __func__, pixels, pixels);
-
- /* base addr of data has been written in reg D0-D4 in 4K word, so AHB address
- * is 8192*reg value */
-
- /* write actual color channel data */
- for(i=0;i<3;i++)
- {
- /* build up actual shading data by copying the part from the full width one
- * to the one corresponding to SHDAREA */
- ptr = buffer.data();
-
- /* iterate on both sensor segment */
- for(x=0;x<pixels;x+=4*factor)
- {
- /* coefficient source */
- src=(data+strpixel+i*length)+x;
-
- /* coefficient copy */
- ptr[0]=src[0];
- ptr[1]=src[1];
- ptr[2]=src[2];
- ptr[3]=src[3];
-
- /* next shading coefficient */
- ptr+=4;
- }
-
- RIE(sanei_genesys_read_register(dev, 0xd0+i, &val));
- addr = val * 8192 + 0x10000000;
- status = sanei_genesys_write_ahb(dev, addr, pixels, buffer.data());
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s; write to AHB failed (%s)\n", __func__, sane_strstatus(status));
- return status;
- }
- }
-
- DBGCOMPLETED;
-
- return status;
-}
-
-/** @brief calibrates led exposure
- * Calibrate exposure by scanning a white area until the used exposure gives
- * data white enough.
- * @param dev device to calibrate
- */
-static SANE_Status
-gl846_led_calibration (Genesys_Device * dev, Genesys_Sensor& sensor, Genesys_Register_Set& regs)
-{
- int num_pixels;
- int total_size;
- int used_res;
- int i, j;
- SANE_Status status = SANE_STATUS_GOOD;
- int val;
- int channels, depth;
- int avg[3], top[3], bottom[3];
- int turn;
- uint16_t exp[3];
- float move;
- SANE_Bool acceptable;
-
- DBGSTART;
-
- move = SANE_UNFIX (dev->model->y_offset_calib);
- move = (move * (dev->motor.base_ydpi/4)) / MM_PER_INCH;
- if(move>20)
- {
- RIE(gl846_feed (dev, move));
- }
- DBG(DBG_io, "%s: move=%f steps\n", __func__, move);
-
- /* offset calibration is always done in color mode */
- channels = 3;
- depth=16;
- used_res=sanei_genesys_compute_dpihw(dev, sensor, dev->settings.xres);
- Sensor_Profile* sensor_profile = get_sensor_profile(dev->model->ccd_type, used_res);
- num_pixels = (sensor.sensor_pixels*used_res)/sensor.optical_res;
-
- /* initial calibration reg values */
- regs = dev->reg;
-
- SetupParams params;
- params.xres = used_res;
- params.yres = used_res;
- params.startx = 0;
- params.starty = 0;
- params.pixels = num_pixels;
- params.lines = 1;
- params.depth = depth;
- params.channels = channels;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- params.color_filter = dev->settings.color_filter;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- status = gl846_init_scan_regs(dev, sensor, &regs, params);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- total_size = num_pixels * channels * (depth/8) * 1; /* colors * bytes_per_color * scan lines */
- std::vector<uint8_t> line(total_size);
-
- /* initial loop values and boundaries */
- exp[0]=sensor_profile->expr;
- exp[1]=sensor_profile->expg;
- exp[2]=sensor_profile->expb;
-
- bottom[0]=29000;
- bottom[1]=29000;
- bottom[2]=29000;
-
- top[0]=41000;
- top[1]=51000;
- top[2]=51000;
-
- turn = 0;
-
- /* no move during led calibration */
- sanei_genesys_set_motor_power(regs, false);
- do
- {
- /* set up exposure */
- sanei_genesys_set_double(&regs,REG_EXPR,exp[0]);
- sanei_genesys_set_double(&regs,REG_EXPG,exp[1]);
- sanei_genesys_set_double(&regs,REG_EXPB,exp[2]);
-
- /* write registers and scan data */
- RIE(dev->model->cmd_set->bulk_write_register(dev, regs));
-
- DBG(DBG_info, "%s: starting line reading\n", __func__);
- RIE(gl846_begin_scan(dev, sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner(dev, line.data(), total_size));
-
- /* stop scanning */
- RIE(gl846_stop_action(dev));
-
- if (DBG_LEVEL >= DBG_data)
- {
- char fn[30];
- snprintf(fn, 30, "gl846_led_%02d.pnm", turn);
- sanei_genesys_write_pnm_file(fn, line.data(), depth, channels, num_pixels, 1);
- }
-
- /* compute average */
- for (j = 0; j < channels; j++)
- {
- avg[j] = 0;
- for (i = 0; i < num_pixels; i++)
- {
- if (dev->model->is_cis)
- val =
- line[i * 2 + j * 2 * num_pixels + 1] * 256 +
- line[i * 2 + j * 2 * num_pixels];
- else
- val =
- line[i * 2 * channels + 2 * j + 1] * 256 +
- line[i * 2 * channels + 2 * j];
- avg[j] += val;
- }
-
- avg[j] /= num_pixels;
- }
-
- DBG(DBG_info, "%s: average: %d,%d,%d\n", __func__, avg[0], avg[1], avg[2]);
-
- /* check if exposure gives average within the boundaries */
- acceptable = SANE_TRUE;
- for(i=0;i<3;i++)
- {
- if(avg[i]<bottom[i])
- {
- exp[i]=(exp[i]*bottom[i])/avg[i];
- acceptable = SANE_FALSE;
- }
- if(avg[i]>top[i])
- {
- exp[i]=(exp[i]*top[i])/avg[i];
- acceptable = SANE_FALSE;
- }
- }
-
- turn++;
- }
- while (!acceptable && turn < 100);
-
- DBG(DBG_info, "%s: acceptable exposure: %d,%d,%d\n", __func__, exp[0], exp[1], exp[2]);
-
- /* set these values as final ones for scan */
- sanei_genesys_set_double(&dev->reg,REG_EXPR,exp[0]);
- sanei_genesys_set_double(&dev->reg,REG_EXPG,exp[1]);
- sanei_genesys_set_double(&dev->reg,REG_EXPB,exp[2]);
-
- /* store in this struct since it is the one used by cache calibration */
- sensor.exposure.red = exp[0];
- sensor.exposure.green = exp[1];
- sensor.exposure.blue = exp[2];
-
- /* go back home */
- if(move>20)
- {
- status=gl846_slow_back_home (dev, SANE_TRUE);
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-/**
- * set up GPIO/GPOE for idle state
- */
-static SANE_Status
-gl846_init_gpio (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int idx=0;
-
- DBGSTART;
-
- /* search GPIO profile */
- while(gpios[idx].sensor_id!=0 && dev->model->gpo_type!=gpios[idx].sensor_id)
- {
- idx++;
- }
- if(gpios[idx].sensor_id==0)
- {
- DBG(DBG_error, "%s: failed to find GPIO profile for sensor_id=%d\n", __func__,
- dev->model->ccd_type);
- return SANE_STATUS_INVAL;
- }
-
- RIE (sanei_genesys_write_register (dev, REGA7, gpios[idx].ra7));
- RIE (sanei_genesys_write_register (dev, REGA6, gpios[idx].ra6));
-
- RIE (sanei_genesys_write_register (dev, REG6B, gpios[idx].r6b));
- RIE (sanei_genesys_write_register (dev, REG6C, gpios[idx].r6c));
- RIE (sanei_genesys_write_register (dev, REG6D, gpios[idx].r6d));
- RIE (sanei_genesys_write_register (dev, REG6E, gpios[idx].r6e));
- RIE (sanei_genesys_write_register (dev, REG6F, gpios[idx].r6f));
-
- RIE (sanei_genesys_write_register (dev, REGA8, gpios[idx].ra8));
- RIE (sanei_genesys_write_register (dev, REGA9, gpios[idx].ra9));
-
- DBGCOMPLETED;
- return status;
-}
-
-/**
- * set memory layout by filling values in dedicated registers
- */
-static SANE_Status
-gl846_init_memory_layout (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int idx = 0, i;
- uint8_t val;
-
- DBGSTART
-
- /* point to per model memory layout */
- idx = 0;
- while(layouts[idx].model!=NULL && strcmp(dev->model->name,layouts[idx].model)!=0)
- {
- if(strcmp(dev->model->name,layouts[idx].model)!=0)
- idx++;
- }
- if(layouts[idx].model==NULL)
- {
- DBG(DBG_error, "%s: failed to find memory layout for model %s!\n", __func__, dev->model->name);
- return SANE_STATUS_INVAL;
- }
-
- /* CLKSET and DRAMSEL */
- val = layouts[idx].dramsel;
- RIE (sanei_genesys_write_register (dev, REG0B, val));
- dev->reg.find_reg(0x0b).value = val;
-
- /* prevent further writings by bulk write register */
- dev->reg.remove_reg(0x0b);
-
- /* setup base address for shading and scanned data. */
- for(i=0;i<10;i++)
- {
- sanei_genesys_write_register (dev, 0xe0+i, layouts[idx].rx[i]);
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-/* *
- * initialize ASIC from power on condition
- */
-static SANE_Status
-gl846_boot (Genesys_Device * dev, SANE_Bool cold)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val;
-
- DBGSTART;
-
- /* reset ASIC if cold boot */
- if(cold)
- {
- RIE (sanei_genesys_write_register (dev, 0x0e, 0x01));
- RIE (sanei_genesys_write_register (dev, 0x0e, 0x00));
- }
-
- 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 */
- gl846_init_registers (dev);
-
- /* Write initial registers */
- RIE (dev->model->cmd_set->bulk_write_register(dev, dev->reg));
-
- /* Enable DRAM by setting a rising edge on bit 3 of reg 0x0b */
- val = dev->reg.find_reg(0x0b).value & REG0B_DRAMSEL;
- val = (val | REG0B_ENBDRAM);
- RIE (sanei_genesys_write_register (dev, REG0B, val));
- dev->reg.find_reg(0x0b).value = val;
-
- /* CIS_LINE */
- if (dev->model->is_cis)
- {
- SETREG (0x08, REG08_CIS_LINE);
- RIE (sanei_genesys_write_register (dev, 0x08, dev->reg.find_reg(0x08).value));
- }
-
- /* set up clocks */
- RIE (sanei_genesys_write_0x8c (dev, 0x10, 0x0e));
- RIE (sanei_genesys_write_0x8c (dev, 0x13, 0x0e));
-
- /* setup gpio */
- RIE (gl846_init_gpio (dev));
-
- /* setup internal memory layout */
- RIE (gl846_init_memory_layout (dev));
-
- SETREG (0xf8, 0x05);
- RIE (sanei_genesys_write_register (dev, 0xf8, dev->reg.find_reg(0xf8).value));
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-/**
- * initialize backend and ASIC : registers, motor tables, and gamma tables
- * then ensure scanner's head is at home
- */
-static SANE_Status gl846_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
-gl846_update_hardware_sensors (Genesys_Scanner * s)
-{
- /* do what is needed to get a new set of events, but try to not lose
- any of them.
- */
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val;
- uint8_t scan, file, email, copy;
- switch(s->dev->model->gpo_type)
- {
- default:
- scan=0x01;
- file=0x02;
- email=0x04;
- copy=0x08;
- }
- RIE (sanei_genesys_read_register (s->dev, REG6D, &val));
-
- s->buttons[BUTTON_SCAN_SW].write((val & scan) == 0);
- s->buttons[BUTTON_FILE_SW].write((val & file) == 0);
- s->buttons[BUTTON_EMAIL_SW].write((val & email) == 0);
- s->buttons[BUTTON_COPY_SW].write((val & copy) == 0);
-
- return status;
-}
-
-/** @brief search for a full width black or white strip.
- * This function searches for a black or white stripe across the scanning area.
- * When searching backward, the searched area must completely be of the desired
- * color since this area will be used for calibration which scans forward.
- * @param dev scanner device
- * @param forward SANE_TRUE if searching forward, SANE_FALSE if searching backward
- * @param black SANE_TRUE if searching for a black strip, SANE_FALSE for a white strip
- * @return SANE_STATUS_GOOD if a matching strip is found, SANE_STATUS_UNSUPPORTED if not
- */
-static SANE_Status
-gl846_search_strip(Genesys_Device * dev, const Genesys_Sensor& sensor,
- SANE_Bool forward, SANE_Bool black)
-{
- unsigned int pixels, lines, channels;
- SANE_Status status = SANE_STATUS_GOOD;
- Genesys_Register_Set local_reg;
- size_t size;
- int steps, depth, dpi;
- unsigned int pass, count, found, x, y;
- char title[80];
- GenesysRegister *r;
-
- DBG(DBG_proc, "%s %s %s\n", __func__, black ? "black" : "white", forward ? "forward" : "reverse");
-
- status = gl846_set_fe(dev, sensor, AFE_SET);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: gl846_set_fe() failed: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- status = gl846_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to stop: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* set up for a gray scan at lowest dpi */
- dpi = 9600;
- for (x = 0; x < MAX_RESOLUTIONS; x++)
- {
- if (dev->model->xdpi_values[x] > 0 && dev->model->xdpi_values[x] < dpi)
- dpi = dev->model->xdpi_values[x];
- }
- channels = 1;
- /* 10 MM */
- /* lines = (10 * dpi) / MM_PER_INCH; */
- /* shading calibation is done with dev->motor.base_ydpi */
- lines = (dev->model->shading_lines * dpi) / dev->motor.base_ydpi;
- depth = 8;
- pixels = (sensor.sensor_pixels * dpi) / sensor.optical_res;
- size = pixels * channels * lines * (depth / 8);
- std::vector<uint8_t> data(size);
-
- dev->scanhead_position_in_steps = 0;
-
- local_reg = dev->reg;
-
- SetupParams params;
- params.xres = dpi;
- params.yres = dpi;
- params.startx = 0;
- params.starty = 0;
- params.pixels = pixels;
- params.lines = lines;
- params.depth = depth;
- params.channels = channels;
- params.scan_mode = ScanColorMode::GRAY;
- params.color_filter = ColorFilter::RED;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA;
-
- status = gl846_init_scan_regs(dev, sensor, &local_reg, params);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to setup for scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* set up for reverse or forward */
- r = sanei_genesys_get_address (&local_reg, REG02);
- if (forward)
- r->value &= ~REG02_MTRREV;
- else
- r->value |= REG02_MTRREV;
-
-
- status = dev->model->cmd_set->bulk_write_register(dev, local_reg);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: Failed to bulk write registers: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- status = gl846_begin_scan(dev, sensor, &local_reg, SANE_TRUE);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* waits for valid data */
- do
- sanei_genesys_test_buffer_empty (dev, &steps);
- while (steps);
-
- /* now we're on target, we can read data */
- status = sanei_genesys_read_data_from_scanner(dev, data.data(), size);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- status = gl846_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: gl846_stop_action failed\n", __func__);
- return status;
- }
-
- pass = 0;
- if (DBG_LEVEL >= DBG_data)
- {
- sprintf(title, "gl846_search_strip_%s_%s%02d.pnm",
- black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass);
- sanei_genesys_write_pnm_file(title, data.data(), depth, channels, pixels, lines);
- }
-
- /* loop until strip is found or maximum pass number done */
- found = 0;
- while (pass < 20 && !found)
- {
- status = dev->model->cmd_set->bulk_write_register(dev, local_reg);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: Failed to bulk write registers: %s\n", __func__,
- sane_strstatus(status));
- return status;
- }
-
- /* now start scan */
- status = gl846_begin_scan(dev, sensor, &local_reg, SANE_TRUE);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- /* waits for valid data */
- do
- sanei_genesys_test_buffer_empty (dev, &steps);
- while (steps);
-
- /* now we're on target, we can read data */
- status = sanei_genesys_read_data_from_scanner(dev, data.data(), size);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- status = gl846_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: gl846_stop_action failed\n", __func__);
- return status;
- }
-
- if (DBG_LEVEL >= DBG_data)
- {
- sprintf(title, "gl846_search_strip_%s_%s%02d.pnm",
- black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass);
- sanei_genesys_write_pnm_file(title, data.data(), depth, channels, pixels, lines);
- }
-
- /* search data to find black strip */
- /* when searching forward, we only need one line of the searched color since we
- * will scan forward. But when doing backward search, we need all the area of the
- * same color */
- if (forward)
- {
- for (y = 0; y < lines && !found; y++)
- {
- count = 0;
- /* count of white/black pixels depending on the color searched */
- for (x = 0; x < pixels; x++)
- {
- /* when searching for black, detect white pixels */
- if (black && data[y * pixels + x] > 90)
- {
- count++;
- }
- /* when searching for white, detect black pixels */
- if (!black && data[y * pixels + x] < 60)
- {
- count++;
- }
- }
-
- /* at end of line, if count >= 3%, line is not fully of the desired color
- * so we must go to next line of the buffer */
- /* count*100/pixels < 3 */
- if ((count * 100) / pixels < 3)
- {
- found = 1;
- DBG(DBG_data, "%s: strip found forward during pass %d at line %d\n", __func__,
- pass, y);
- }
- else
- {
- DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count,
- (100 * count) / pixels);
- }
- }
- }
- else /* since calibration scans are done forward, we need the whole area
- to be of the required color when searching backward */
- {
- count = 0;
- for (y = 0; y < lines; y++)
- {
- /* count of white/black pixels depending on the color searched */
- for (x = 0; x < pixels; x++)
- {
- /* when searching for black, detect white pixels */
- if (black && data[y * pixels + x] > 90)
- {
- count++;
- }
- /* when searching for white, detect black pixels */
- if (!black && data[y * pixels + x] < 60)
- {
- count++;
- }
- }
- }
-
- /* at end of area, if count >= 3%, area is not fully of the desired color
- * so we must go to next buffer */
- if ((count * 100) / (pixels * lines) < 3)
- {
- found = 1;
- DBG(DBG_data, "%s: strip found backward during pass %d \n", __func__, pass);
- }
- else
- {
- DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count,
- (100 * count) / pixels);
- }
- }
- pass++;
- }
-
- if (found)
- {
- status = SANE_STATUS_GOOD;
- DBG(DBG_info, "%s: %s strip found\n", __func__, black ? "black" : "white");
- }
- else
- {
- status = SANE_STATUS_UNSUPPORTED;
- DBG(DBG_info, "%s: %s strip not found\n", __func__, black ? "black" : "white");
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-/**
- * average dark pixels of a 8 bits scan
- */
-static int
-dark_average (uint8_t * data, unsigned int pixels, unsigned int lines,
- unsigned int channels, unsigned int black)
-{
- unsigned int i, j, k, average, count;
- unsigned int avg[3];
- uint8_t val;
-
- /* computes average value on black margin */
- for (k = 0; k < channels; k++)
- {
- avg[k] = 0;
- count = 0;
- for (i = 0; i < lines; i++)
- {
- for (j = 0; j < black; j++)
- {
- val = data[i * channels * pixels + j + k];
- avg[k] += val;
- count++;
- }
- }
- if (count)
- avg[k] /= count;
- DBG(DBG_info, "%s: avg[%d] = %d\n", __func__, k, avg[k]);
- }
- average = 0;
- for (i = 0; i < channels; i++)
- average += avg[i];
- average /= channels;
- DBG(DBG_info, "%s: average = %d\n", __func__, average);
- return average;
-}
-
-static SANE_Status
-gl846_offset_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set& regs)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t reg04;
- unsigned int channels, bpp;
- int pass = 0, avg, total_size;
- int topavg, bottomavg, resolution, lines;
- int top, bottom, black_pixels, pixels;
-
- DBGSTART;
-
- /* no gain nor offset for AKM AFE */
- RIE (sanei_genesys_read_register (dev, REG04, &reg04));
- if ((reg04 & REG04_FESET) == 0x02)
- {
- DBGCOMPLETED;
- return status;
- }
-
- /* offset calibration is always done in color mode */
- channels = 3;
- resolution=sensor.optical_res;
- dev->calib_pixels = sensor.sensor_pixels;
- lines=1;
- bpp=8;
- pixels= (sensor.sensor_pixels*resolution) / sensor.optical_res;
- black_pixels = (sensor.black_pixels * resolution) / sensor.optical_res;
- DBG(DBG_io2, "%s: black_pixels=%d\n", __func__, black_pixels);
-
- SetupParams params;
- params.xres = resolution;
- params.yres = resolution;
- params.startx = 0;
- params.starty = 0;
- params.pixels = pixels;
- params.lines = lines;
- params.depth = bpp;
- params.channels = channels;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- params.color_filter = dev->settings.color_filter;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- status = gl846_init_scan_regs(dev, sensor, &regs, params);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
- sanei_genesys_set_motor_power(regs, false);
-
- /* allocate memory for scans */
- total_size = pixels * channels * lines * (bpp/8); /* colors * bytes_per_color * scan lines */
-
- std::vector<uint8_t> first_line(total_size);
- std::vector<uint8_t> second_line(total_size);
-
- /* init gain */
- dev->frontend.set_gain(0, 0);
- dev->frontend.set_gain(1, 0);
- dev->frontend.set_gain(2, 0);
-
- /* scan with no move */
- bottom = 10;
- dev->frontend.set_offset(0, bottom);
- dev->frontend.set_offset(1, bottom);
- dev->frontend.set_offset(2, bottom);
-
- RIE(gl846_set_fe(dev, sensor, AFE_SET));
- RIE(dev->model->cmd_set->bulk_write_register(dev, regs));
- DBG(DBG_info, "%s: starting first line reading\n", __func__);
- RIE(gl846_begin_scan(dev, sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner (dev, first_line.data(), total_size));
- if (DBG_LEVEL >= DBG_data)
- {
- char fn[30];
- snprintf(fn, 30, "gl846_offset%03d.pnm", bottom);
- sanei_genesys_write_pnm_file(fn, first_line.data(), bpp, channels, pixels, lines);
- }
-
- bottomavg = dark_average(first_line.data(), pixels, lines, channels, black_pixels);
- DBG(DBG_io2, "%s: bottom avg=%d\n", __func__, bottomavg);
-
- /* now top value */
- top = 255;
- dev->frontend.set_offset(0, top);
- dev->frontend.set_offset(1, top);
- dev->frontend.set_offset(2, top);
- RIE(gl846_set_fe(dev, sensor, AFE_SET));
- RIE(dev->model->cmd_set->bulk_write_register(dev, regs));
- DBG(DBG_info, "%s: starting second line reading\n", __func__);
- RIE(gl846_begin_scan(dev, sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner (dev, second_line.data(), total_size));
-
- topavg = dark_average(second_line.data(), pixels, lines, channels, black_pixels);
- DBG(DBG_io2, "%s: top avg=%d\n", __func__, topavg);
-
- /* loop until acceptable level */
- while ((pass < 32) && (top - bottom > 1))
- {
- pass++;
-
- /* settings for new scan */
- dev->frontend.set_offset(0, (top + bottom) / 2);
- dev->frontend.set_offset(1, (top + bottom) / 2);
- dev->frontend.set_offset(2, (top + bottom) / 2);
-
- /* scan with no move */
- RIE(gl846_set_fe(dev, sensor, AFE_SET));
- RIE(dev->model->cmd_set->bulk_write_register(dev, regs));
- DBG(DBG_info, "%s: starting second line reading\n", __func__);
- RIE(gl846_begin_scan(dev, sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner (dev, second_line.data(), total_size));
-
- if (DBG_LEVEL >= DBG_data)
- {
- char fn[30];
- snprintf(fn, 30, "gl846_offset%03d.pnm", dev->frontend.get_offset(1));
- sanei_genesys_write_pnm_file(fn, second_line.data(), bpp, channels, pixels, lines);
- }
-
- avg = dark_average(second_line.data(), pixels, lines, channels, black_pixels);
- DBG(DBG_info, "%s: avg=%d offset=%d\n", __func__, avg, dev->frontend.get_offset(1));
-
- /* compute new boundaries */
- if (topavg == avg)
- {
- topavg = avg;
- top = dev->frontend.get_offset(1);
- }
- else
- {
- bottomavg = avg;
- bottom = dev->frontend.get_offset(1);
- }
- }
- DBG(DBG_info, "%s: offset=(%d,%d,%d)\n", __func__,
- dev->frontend.get_offset(0),
- dev->frontend.get_offset(1),
- dev->frontend.get_offset(2));
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-gl846_coarse_gain_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor,
- Genesys_Register_Set& regs, int dpi)
-{
- int pixels;
- int total_size;
- uint8_t reg04;
- int i, j, channels;
- SANE_Status status = SANE_STATUS_GOOD;
- int max[3];
- float gain[3],coeff;
- int val, code, lines;
- int resolution;
- int bpp;
-
- DBG(DBG_proc, "%s: dpi = %d\n", __func__, dpi);
-
- /* no gain nor offset for AKM AFE */
- RIE (sanei_genesys_read_register (dev, REG04, &reg04));
- if ((reg04 & REG04_FESET) == 0x02)
- {
- DBGCOMPLETED;
- return status;
- }
-
- /* coarse gain calibration is always done in color mode */
- channels = 3;
-
- /* follow CKSEL */
- if(dev->settings.xres<sensor.optical_res)
- {
- coeff=0.9;
- /*resolution=sensor.optical_res/2;*/
- resolution=sensor.optical_res;
- }
- else
- {
- resolution=sensor.optical_res;
- coeff=1.0;
- }
- lines=10;
- bpp=8;
- pixels = (sensor.sensor_pixels * resolution) / sensor.optical_res;
-
- SetupParams params;
- params.xres = resolution;
- params.yres = resolution;
- params.startx = 0;
- params.starty = 0;
- params.pixels = pixels;
- params.lines = lines;
- params.depth = bpp;
- params.channels = channels;
- params.scan_method = dev->settings.scan_method;
- params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;
- params.color_filter = dev->settings.color_filter;
- params.flags = SCAN_FLAG_DISABLE_SHADING |
- SCAN_FLAG_DISABLE_GAMMA |
- SCAN_FLAG_SINGLE_LINE |
- SCAN_FLAG_IGNORE_LINE_DISTANCE;
-
- try {
- status = gl846_init_scan_regs(dev, sensor, &regs, params);
- } catch (...) {
- try {
- sanei_genesys_set_motor_power(regs, false);
- } catch (...) {}
- throw;
- }
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status));
- return status;
- }
-
- RIE (dev->model->cmd_set->bulk_write_register(dev, regs));
-
- total_size = pixels * channels * (16/bpp) * lines;
-
- std::vector<uint8_t> line(total_size);
-
- RIE(gl846_set_fe(dev, sensor, AFE_SET));
- RIE(gl846_begin_scan(dev, sensor, &regs, SANE_TRUE));
- RIE(sanei_genesys_read_data_from_scanner(dev, line.data(), total_size));
-
- if (DBG_LEVEL >= DBG_data)
- sanei_genesys_write_pnm_file("gl846_gain.pnm", line.data(), bpp, channels, pixels, lines);
-
- /* average value on each channel */
- for (j = 0; j < channels; j++)
- {
- max[j] = 0;
- for (i = pixels/4; i < (pixels*3/4); i++)
- {
- if (dev->model->is_cis)
- val = line[i + j * pixels];
- else
- val = line[i * channels + j];
-
- max[j] += val;
- }
- max[j] = max[j] / (pixels/2);
-
- gain[j] = ((float) sensor.gain_white_ref*coeff) / max[j];
-
- /* turn logical gain value into gain code, checking for overflow */
- code = 283 - 208 / gain[j];
- if (code > 255)
- code = 255;
- else if (code < 0)
- code = 0;
- dev->frontend.set_gain(j, code);
-
- DBG(DBG_proc, "%s: channel %d, max=%d, gain = %f, setting:%d\n", __func__, j, max[j], gain[j],
- dev->frontend.get_gain(j));
- }
-
- if (dev->model->is_cis) {
- uint8_t gain0 = dev->frontend.get_gain(0);
- if (gain0 > dev->frontend.get_gain(1)) {
- gain0 = dev->frontend.get_gain(1);
- }
- if (gain0 > dev->frontend.get_gain(2)) {
- gain0 = dev->frontend.get_gain(2);
- }
- dev->frontend.set_gain(0, gain0);
- dev->frontend.set_gain(1, gain0);
- dev->frontend.set_gain(2, gain0);
- }
-
- RIE (gl846_stop_action (dev));
-
- status=gl846_slow_back_home (dev, SANE_TRUE);
-
- DBGCOMPLETED;
- return status;
-}
-
-
-/** the gl846 command set */
-static Genesys_Command_Set gl846_cmd_set = {
- "gl846-generic", /* the name of this set */
-
- nullptr,
-
- gl846_init,
- NULL,
- gl846_init_regs_for_coarse_calibration,
- gl846_init_regs_for_shading,
- gl846_init_regs_for_scan,
-
- gl846_get_filter_bit,
- gl846_get_lineart_bit,
- gl846_get_bitset_bit,
- gl846_get_gain4_bit,
- gl846_get_fast_feed_bit,
- gl846_test_buffer_empty_bit,
- gl846_test_motor_flag_bit,
-
- gl846_set_fe,
- gl846_set_powersaving,
- gl846_save_power,
-
- gl846_begin_scan,
- gl846_end_scan,
-
- sanei_genesys_send_gamma_table,
-
- gl846_search_start_position,
-
- gl846_offset_calibration,
- gl846_coarse_gain_calibration,
- gl846_led_calibration,
-
- NULL,
- gl846_slow_back_home,
- NULL,
-
- sanei_genesys_bulk_write_register,
- NULL,
- sanei_genesys_bulk_read_data,
-
- gl846_update_hardware_sensors,
-
- NULL,
- NULL,
- NULL,
- gl846_search_strip,
-
- sanei_genesys_is_compatible_calibration,
- NULL,
- gl846_send_shading_data,
- gl846_calculate_current_setup,
- gl846_boot
-};
-
-SANE_Status
-sanei_gl846_init_cmd_set (Genesys_Device * dev)
-{
- dev->model->cmd_set = &gl846_cmd_set;
- return SANE_STATUS_GOOD;
-}