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Diffstat (limited to 'backend/genesys_gl846.c')
| -rw-r--r-- | backend/genesys_gl846.c | 3711 |
1 files changed, 0 insertions, 3711 deletions
diff --git a/backend/genesys_gl846.c b/backend/genesys_gl846.c deleted file mode 100644 index 0716c17..0000000 --- a/backend/genesys_gl846.c +++ /dev/null @@ -1,3711 +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. - */ -#undef BACKEND_NAME -#define BACKEND_NAME genesys_gl846 - -#include "genesys_gl846.h" - -/**************************************************************************** - Low level function - ****************************************************************************/ - -/* ------------------------------------------------------------------------ */ -/* Read and write RAM, registers and AFE */ -/* ------------------------------------------------------------------------ */ - - -/** @brief read scanned data - * Read in 0xeff0 maximum sized blocks. This read is done in 2 - * parts if not multple of 512. First read is rounded to a multiple of 512 bytes, last read fetches the - * remainder. Read addr is always 0x10000000 with the memory layout setup. - * @param dev device to read data from - * @param addr address within ASIC memory space, unused but kept for API - * @param data pointer where to store the read data - * @param len size to read - */ -static SANE_Status -gl846_bulk_read_data (Genesys_Device * dev, uint8_t addr, - uint8_t * data, size_t len) -{ - SANE_Status status; - size_t size, target, read, done; - uint8_t outdata[8]; - uint8_t *buffer; - - DBG (DBG_io, "gl846_bulk_read_data: requesting %lu bytes at addr=0x%02x\n", (u_long) len, addr); - - if (len == 0) - return SANE_STATUS_GOOD; - - target = len; - buffer = data; - - /* loop until computed data size is read */ - while (target) - { - if (target > 0xeff0) - { - size = 0xeff0; - } - else - { - size = target; - } - - /* hard coded 0x10000000 addr */ - outdata[0] = 0; - outdata[1] = 0; - outdata[2] = 0; - outdata[3] = 0x10; - - /* data size to transfer */ - outdata[4] = (size & 0xff); - outdata[5] = ((size >> 8) & 0xff); - outdata[6] = ((size >> 16) & 0xff); - outdata[7] = ((size >> 24) & 0xff); - - status = - sanei_usb_control_msg (dev->dn, REQUEST_TYPE_OUT, REQUEST_BUFFER, - VALUE_BUFFER, 0x00, sizeof (outdata), - outdata); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, "%s failed while writing command: %s\n", - __func__, sane_strstatus (status)); - return status; - } - - /* blocks must be multiple of 512 but not last block */ - read = size; - if (read >= 512) - { - read /= 512; - read *= 512; - } - - DBG (DBG_io2, - "gl846_bulk_read_data: trying to read %lu bytes of data\n", - (u_long) read); - status = sanei_usb_read_bulk (dev->dn, buffer, &read); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_bulk_read_data failed while reading bulk data: %s\n", - sane_strstatus (status)); - return status; - } - done=read; - DBG (DBG_io2, "gl846_bulk_read_data: %lu bytes of data read\n", (u_long) done); - - /* read less than 512 bytes remainder */ - if (read < size) - { - read = size - read; - DBG (DBG_io2, - "gl846_bulk_read_data: trying to read %lu bytes of data\n", - (u_long) read); - status = sanei_usb_read_bulk (dev->dn, buffer+done, &read); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_bulk_read_data failed while reading bulk data: %s\n", - sane_strstatus (status)); - return status; - } - done=read; - DBG (DBG_io2, "gl846_bulk_read_data: %lu bytes of data read\n", (u_long) done); - } - - DBG (DBG_io2, "%s: read %lu bytes, %lu remaining\n", __func__, - (u_long) size, (u_long) (target - size)); - - target -= size; - buffer += size; - } - - if (DBG_LEVEL >= DBG_data && dev->binary!=NULL) - { - fwrite(data, len, 1, dev->binary); - } - - DBGCOMPLETED; - - return SANE_STATUS_GOOD; -} - -/**************************************************************************** - Mid level functions - ****************************************************************************/ - -static SANE_Bool -gl846_get_fast_feed_bit (Genesys_Register_Set * regs) -{ - Genesys_Register_Set *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) -{ - Genesys_Register_Set *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) -{ - Genesys_Register_Set *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) -{ - Genesys_Register_Set *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) -{ - Genesys_Register_Set *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) -{ - Genesys_Register_Set *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; - - sensor=get_sensor_profile(dev->model->ccd_type, xres); - return sensor->exposure; -} - - -/** @brief sensor specific settings -*/ -static void -gl846_setup_sensor (Genesys_Device * dev, Genesys_Register_Set * regs, int dpi) -{ - Genesys_Register_Set *r; - Sensor_Profile *sensor; - int dpihw, i; - uint16_t exp; - - DBGSTART; - dpihw=sanei_genesys_compute_dpihw(dev,dpi); - - for (i = 0x06; i < 0x0e; i++) - { - r = sanei_genesys_get_address (regs, 0x10 + i); - if (r) - r->value = dev->sensor.regs_0x10_0x1d[i]; - } - - for (i = 0; i < 9; i++) - { - r = sanei_genesys_get_address (regs, 0x52 + i); - if (r) - r->value = dev->sensor.regs_0x52_0x5e[i]; - } - - /* set EXPDUMMY and CKxMAP */ - dpihw=sanei_genesys_compute_dpihw(dev,dpi); - sensor=get_sensor_profile(dev->model->ccd_type, dpihw); - - sanei_genesys_set_reg_from_set(regs,REG_EXPDMY,(uint8_t)((sensor->expdummy) & 0xff)); - - /* if no calibration has been done, set default values for exposures */ - exp=dev->sensor.regs_0x10_0x1d[0]*256+dev->sensor.regs_0x10_0x1d[1]; - if(exp==0) - { - exp=sensor->expr; - } - sanei_genesys_set_double(regs,REG_EXPR,exp); - - exp=dev->sensor.regs_0x10_0x1d[2]*256+dev->sensor.regs_0x10_0x1d[3]; - if(exp==0) - { - exp=sensor->expg; - } - sanei_genesys_set_double(regs,REG_EXPG,exp); - - exp=dev->sensor.regs_0x10_0x1d[4]*256+dev->sensor.regs_0x10_0x1d[5]; - if(exp==0) - { - exp=sensor->expb; - } - sanei_genesys_set_double(regs,REG_EXPB,exp); - - sanei_genesys_set_triple(regs,REG_CK1MAP,sensor->ck1map); - sanei_genesys_set_triple(regs,REG_CK3MAP,sensor->ck3map); - sanei_genesys_set_triple(regs,REG_CK4MAP,sensor->ck4map); - - /* order of the sub-segments */ - dev->order=sensor->order; - - r = sanei_genesys_get_address (regs, 0x17); - r->value = sensor->r17; - - DBGCOMPLETED; -} - - -/* returns the max register bulk size */ -static int -gl846_bulk_full_size (void) -{ - return GENESYS_GL846_MAX_REGS; -} - -/** @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; - - memset (dev->reg, 0, - GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - - 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); - - /* fine tune upon device description */ - dev->reg[reg_0x05].value &= ~REG05_DPIHW; - switch (dev->sensor.optical_res) - { - case 600: - dev->reg[reg_0x05].value |= REG05_DPIHW_600; - break; - case 1200: - dev->reg[reg_0x05].value |= REG05_DPIHW_1200; - break; - case 2400: - dev->reg[reg_0x05].value |= REG05_DPIHW_2400; - break; - case 4800: - dev->reg[reg_0x05].value |= REG05_DPIHW_4800; - break; - } - - /* initalize calibration reg */ - memcpy (dev->calib_reg, dev->reg, - GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - - 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; - uint8_t *table; - 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; - } - - table = (uint8_t *) malloc (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->dn, dev->usb_mode, 0x10000000 + 0x4000 * table_nr, steps * 2, table); - 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)); - } - - free (table); - 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; - uint16_t val; - uint8_t val8; - - DBGSTART; - - /* wait for FE to be ready */ - status = sanei_genesys_get_status (dev, &val8); - while (val8 & REG41_FEBUSY) - { - usleep (10000); - status = sanei_genesys_get_status (dev, &val8); - }; - - if (set == AFE_INIT) - { - DBG (DBG_proc, "%s(): setting DAC %u\n", __func__, dev->model->dac_type); - - /* sets to default values */ - sanei_genesys_init_fe (dev); - } - - /* write them to analog frontend */ - val = dev->frontend.reg[0]; - status = sanei_genesys_fe_write_data (dev, 0x00, val); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, "%s: failed to write reg0: %s\n", __func__, - sane_strstatus (status)); - return status; - } - val = dev->frontend.reg[1]; - status = sanei_genesys_fe_write_data (dev, 0x01, val); - 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++) - { - val = dev->frontend.gain[i]; - status = sanei_genesys_fe_write_data (dev, 0x02 + i, val); - 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++) - { - val = dev->frontend.offset[i]; - status = sanei_genesys_fe_write_data (dev, 0x05 + i, val); - 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, uint8_t set) -{ - SANE_Status status; - - DBG(DBG_proc, "gl846_set_fe (%s)\n", - set == AFE_INIT ? "init" : set == AFE_SET ? "set" : - set == AFE_POWER_SAVE ? "powersave" : "huh?"); - - /* route to specific analog frontend setup */ - switch (dev->reg[reg_0x04].value & REG04_FESET) - { - case 0x02: /* ADI FE */ - status = gl846_set_adi_fe(dev, set); - break; - default: - DBG(DBG_proc, "gl846_set_fe(): unsupported frontend type %d\n", - dev->reg[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, - 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; - 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; - Genesys_Register_Set *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, "gl846_init_motor_regs_scan : 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", - 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; - r->value |= REG02_MTRPWR; - - 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>=dev->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,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, "gl846_init_motor_regs_scan: z1 = %d\n", z1); - sanei_genesys_set_triple(reg, REG60, z1 | (scan_step_type << (16+REG60S_STEPSEL))); - - DBG (DBG_info, "gl846_init_motor_regs_scan: z2 = %d\n", 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, - 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, int 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; - Genesys_Register_Set *r; - SANE_Status status; - Sensor_Profile *sensor; - - DBG (DBG_proc, "gl846_init_optical_regs_scan : exposure_time=%d, " - "used_res=%d, start=%d, pixels=%d, channels=%d, depth=%d, " - "half_ccd=%d, flags=%x\n", 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, used_res * cksel); - factor=dev->sensor.optical_res/dpihw; - DBG (DBG_io2, "%s: dpihw=%d (factor=%d)\n", __func__, dpihw, factor); - - /* sensor parameters */ - sensor=get_sensor_profile(dev->model->ccd_type, dpihw); - gl846_setup_sensor (dev, reg, dpihw); - dpiset = used_res * cksel; - - /* start and end coordinate in optical dpi coordinates */ - startx = start/cksel+dev->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->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, AFE_SET); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_init_optical_regs_scan: failed to set frontend: %s\n", - 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; - - if (flags & OPTICAL_FLAG_DISABLE_LAMP) - r->value &= ~REG03_LAMPPWR; - else - r->value |= REG03_LAMPPWR; - - /* 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 0: - r->value |= 0x24; /* red filter */ - break; - case 2: - r->value |= 0x2c; /* blue filter */ - break; - default: - r->value |= 0x28; /* green filter */ - break; - } - } - 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; - - if(dev->oe_buffer.buffer!=NULL) - { - sanei_genesys_buffer_free (&(dev->oe_buffer)); - } - RIE (sanei_genesys_buffer_alloc (&(dev->oe_buffer), 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 = dev->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 - */ -#ifndef UNIT_TESTING -static -#endif - SANE_Status -gl846_init_scan_regs (Genesys_Device * dev, - Genesys_Register_Set * reg, - float xres, /*dpi */ - float yres, /*dpi */ - float startx, /*optical_res, from dummy_pixel+1 */ - float starty, /*base_ydpi, from home! */ - float pixels, - float lines, - unsigned int depth, - unsigned int channels, - int color_filter, - unsigned int flags) -{ - 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; - - DBG (DBG_info, - "gl846_init_scan_regs settings:\n" - "Resolution : %gDPI/%gDPI\n" - "Lines : %g\n" - "PPL : %g\n" - "Startpos : %g/%g\n" - "Depth/Channels: %u/%u\n" - "Flags : %x\n\n", - xres, yres, lines, pixels, startx, starty, depth, channels, flags); - - /* we may have 2 domains for ccd: xres below or above half ccd max dpi */ - if (dev->sensor.optical_res < 2 * xres || - !(dev->model->flags & GENESYS_FLAG_HALF_CCD_MODE)) - { - half_ccd = SANE_FALSE; - } - else - { - half_ccd = SANE_TRUE; - } - - /* optical_res */ - optical_res = dev->sensor.optical_res; - if (half_ccd) - optical_res /= 2; - - /* stagger */ - if ((!half_ccd) && (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE)) - stagger = (4 * yres) / dev->motor.base_ydpi; - else - stagger = 0; - DBG (DBG_info, "gl846_init_scan_regs : stagger=%d lines\n", stagger); - - /* used_res */ - if (flags & SCAN_FLAG_USE_OPTICAL_RES) - { - used_res = optical_res; - } - else - { - /* resolution is choosen from a list */ - used_res = 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 = startx; - - if (stagger > 0) - start |= 1; - - /* compute correct pixels number */ - /* pixels */ - used_pixels = (pixels * optical_res) / xres; - - /* round up pixels number if needed */ - if (used_pixels * xres < pixels * optical_res) - used_pixels++; - - dummy = 3-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 = yres * channels; - else - slope_dpi = 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, "gl846_init_scan_regs : exposure_time=%d pixels\n", exposure_time); - DBG (DBG_info, "gl846_init_scan_regs : scan_step_type=%d\n", scan_step_type); - -/*** optical parameters ***/ - /* in case of dynamic lineart, we use an internal 8 bit gray scan - * to generate 1 lineart data */ - if ((flags & SCAN_FLAG_DYNAMIC_LINEART) && (dev->settings.scan_mode == SCAN_MODE_LINEART)) - { - 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(flags & SCAN_FLAG_DISABLE_SHADING) - oflags |= OPTICAL_FLAG_DISABLE_SHADING; - if(flags & SCAN_FLAG_DISABLE_GAMMA) - oflags |= OPTICAL_FLAG_DISABLE_GAMMA; - if(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, - reg, - exposure_time, - used_res, - start, - used_pixels, - channels, - depth, - half_ccd, - color_filter, - oflags); - - if (status != SANE_STATUS_GOOD) - return status; - -/*** motor parameters ***/ - - /* max_shift */ - max_shift=sanei_genesys_compute_max_shift(dev,channels,yres,flags); - - /* lincnt */ - lincnt = lines + max_shift + stagger; - - /* add tl_y to base movement */ - move = starty; - DBG (DBG_info, "gl846_init_scan_regs: move=%d steps\n", move); - - mflags=0; - if(flags & SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE) - mflags |= MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE; - if(flags & SCAN_FLAG_FEEDING) - mflags |= MOTOR_FLAG_FEED; - - status = gl846_init_motor_regs_scan (dev, - reg, - exposure_time, - slope_dpi, - scan_step_type, - dev->model->is_cis ? lincnt * - 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 * channels * depth) / 8; - - requested_buffer_size = 8 * bytes_per_line; - /* we must use a round number of bytes_per_line */ - /* XXX STEF XXX - if (requested_buffer_size > BULKIN_MAXSIZE) - requested_buffer_size = - (BULKIN_MAXSIZE / bytes_per_line) * bytes_per_line; - */ - - read_buffer_size = - 2 * requested_buffer_size + - ((max_shift + stagger) * used_pixels * channels * depth) / 8; - - RIE (sanei_genesys_buffer_free (&(dev->read_buffer))); - RIE (sanei_genesys_buffer_alloc (&(dev->read_buffer), read_buffer_size)); - - RIE (sanei_genesys_buffer_free (&(dev->lines_buffer))); - RIE (sanei_genesys_buffer_alloc (&(dev->lines_buffer), read_buffer_size)); - - RIE (sanei_genesys_buffer_free (&(dev->shrink_buffer))); - RIE (sanei_genesys_buffer_alloc (&(dev->shrink_buffer), - requested_buffer_size)); - - RIE (sanei_genesys_buffer_free (&(dev->out_buffer))); - RIE (sanei_genesys_buffer_alloc (&(dev->out_buffer), - (8 * dev->settings.pixels * channels * - depth) / 8)); - - - dev->read_bytes_left = bytes_per_line * lincnt; - - DBG (DBG_info, - "gl846_init_scan_regs: physical bytes to read = %lu\n", - (u_long) dev->read_bytes_left); - dev->read_active = SANE_TRUE; - - - dev->current_setup.pixels = (used_pixels * used_res) / optical_res; - dev->current_setup.lines = lincnt; - dev->current_setup.depth = depth; - dev->current_setup.channels = channels; - dev->current_setup.exposure_time = exposure_time; - dev->current_setup.xres = used_res; - dev->current_setup.yres = yres; - dev->current_setup.half_ccd = half_ccd; - 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 = - (dev->settings.pixels * dev->settings.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 (depth == 1) - dev->total_bytes_to_read = - ((dev->settings.pixels * dev->settings.lines) / 8 + - (((dev->settings.pixels * dev->settings.lines) % 8) ? 1 : 0)) * - channels; - else - dev->total_bytes_to_read = - dev->settings.pixels * dev->settings.lines * channels * (depth / 8); - - DBG (DBG_info, "gl846_init_scan_regs: total bytes to send = %lu\n", - (u_long) dev->total_bytes_to_read); -/* END TODO */ - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static SANE_Status -gl846_calculate_current_setup (Genesys_Device * dev) -{ - int channels; - int depth; - int start; - - float xres; /*dpi */ - float yres; /*dpi */ - float startx; /*optical_res, from dummy_pixel+1 */ - float pixels; - float lines; - - 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, - "gl846_calculate_current_setup settings:\n" - "Resolution: %uDPI\n" - "Lines : %u\n" - "PPL : %u\n" - "Startpos : %.3f/%.3f\n" - "Scan mode : %d\n\n", - dev->settings.yres, dev->settings.lines, dev->settings.pixels, - dev->settings.tl_x, dev->settings.tl_y, dev->settings.scan_mode); - - /* channels */ - if (dev->settings.scan_mode == 4) /* single pass color */ - channels = 3; - else - channels = 1; - - /* depth */ - depth = dev->settings.depth; - if (dev->settings.scan_mode == 0) - depth = 1; - - /* start */ - start = SANE_UNFIX (dev->model->x_offset); - start += dev->settings.tl_x; - start = (start * dev->sensor.optical_res) / MM_PER_INCH; - - - xres = dev->settings.xres; /*dpi */ - yres = dev->settings.yres; /*dpi */ - startx = start; /*optical_res, from dummy_pixel+1 */ - pixels = dev->settings.pixels; - lines = dev->settings.lines; - - DBG (DBG_info, - "gl846_calculate_current_setup settings:\n" - "Resolution : %gDPI/%gDPI\n" - "Lines : %g\n" - "PPL : %g\n" - "Startpos : %g\n" - "Depth/Channels: %u/%u\n\n", - xres, yres, lines, pixels, startx, depth, channels); - -/* half_ccd */ - /* we have 2 domains for ccd: xres below or above half ccd max dpi */ - if ((dev->sensor.optical_res < 2 * xres) || - !(dev->model->flags & GENESYS_FLAG_HALF_CCD_MODE)) - { - half_ccd = SANE_FALSE; - } - else - { - half_ccd = SANE_TRUE; - } - - /* optical_res */ - optical_res = dev->sensor.optical_res; - - /* stagger */ - if (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE) - stagger = (4 * yres) / dev->motor.base_ydpi; - else - stagger = 0; - DBG (DBG_info, "gl846_calculate_current_setup: stagger=%d lines\n", - stagger); - - /* resolution is choosen from a fixed list */ - used_res = 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 = (pixels * optical_res) / used_res; - dummy = 3-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 = yres * channels; - else - slope_dpi = 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 */ - max_shift=sanei_genesys_compute_max_shift(dev,channels,yres,0); - - /* lincnt */ - lincnt = lines + max_shift + stagger; - - dev->current_setup.pixels = (used_pixels * used_res) / optical_res; - dev->current_setup.lines = lincnt; - dev->current_setup.depth = depth; - dev->current_setup.channels = channels; - dev->current_setup.exposure_time = exposure_time; - dev->current_setup.xres = used_res; - dev->current_setup.yres = yres; - dev->current_setup.half_ccd = half_ccd; - dev->current_setup.stagger = stagger; - dev->current_setup.max_shift = max_shift + stagger; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static void -gl846_set_motor_power (Genesys_Register_Set * regs, SANE_Bool set) -{ - - DBG (DBG_proc, "gl846_set_motor_power\n"); - - if (set) - { - sanei_genesys_set_reg_from_set (regs, REG02, - sanei_genesys_read_reg_from_set (regs, - REG02) - | REG02_MTRPWR); - } - else - { - sanei_genesys_set_reg_from_set (regs, REG02, - sanei_genesys_read_reg_from_set (regs, - REG02) - & ~REG02_MTRPWR); - } -} - -static void -gl846_set_lamp_power (Genesys_Device __sane_unused__ * dev, - Genesys_Register_Set * regs, SANE_Bool set) -{ - if (set) - { - sanei_genesys_set_reg_from_set (regs, REG03, - sanei_genesys_read_reg_from_set (regs, REG03) - | REG03_LAMPPWR); - } - else - { - sanei_genesys_set_reg_from_set (regs, REG03, - sanei_genesys_read_reg_from_set (regs, REG03) - & ~REG03_LAMPPWR); - } -} - -/*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, "gl846_save_power: enable = %d\n", 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, "gl846_set_powersaving (delay = %d)\n", 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); -} - -#ifndef UNIT_TESTING -static -#endif -SANE_Status -gl846_stop_action (Genesys_Device * dev) -{ - SANE_Status status; - 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 = sanei_genesys_read_reg_from_set (dev->reg, REG01); - val &= ~REG01_SCAN; - sanei_genesys_set_reg_from_set (dev->reg, REG01, val); - status = sanei_genesys_write_register (dev, REG01, val); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "%s: failed to write register 01: %s\n", __func__, - sane_strstatus (status)); - return status; - } - usleep (100 * 1000); - - 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; - } - - usleep (100 * 1000); - loop--; - } - - DBGCOMPLETED; - return SANE_STATUS_IO_ERROR; -} - -/* Send the low-level scan command */ -#ifndef UNIT_TESTING -static -#endif - SANE_Status -gl846_begin_scan (Genesys_Device * dev, Genesys_Register_Set * reg, - SANE_Bool start_motor) -{ - SANE_Status status; - uint8_t val; - Genesys_Register_Set *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 */ -#ifndef UNIT_TESTING -static -#endif - SANE_Status -gl846_end_scan (Genesys_Device * dev, Genesys_Register_Set * reg, - SANE_Bool check_stop) -{ - SANE_Status status; - - DBG (DBG_proc, "gl846_end_scan (check_stop = %d)\n", 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, - "gl846_end_scan: failed to stop: %s\n", - sane_strstatus (status)); - return status; - } - } - - DBGCOMPLETED; - return status; -} - -/* Moves the slider to the home (top) postion slowly */ -#ifndef UNIT_TESTING -static -#endif -SANE_Status -gl846_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home) -{ - Genesys_Register_Set local_reg[GENESYS_GL846_MAX_REGS]; - SANE_Status status; - Genesys_Register_Set *r; - float resolution; - uint8_t val; - int loop = 0; - int scan_mode; - - DBG (DBG_proc, "gl846_slow_back_home (wait_until_home = %d)\n", - wait_until_home); - - if(dev->usb_mode<0) - { - DBGCOMPLETED; - return SANE_STATUS_GOOD; - } - - /* 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, - "gl846_slow_back_home: failed to read home sensor: %s\n", - sane_strstatus (status)); - return status; - } - if (DBG_LEVEL >= DBG_io) - { - sanei_genesys_print_status (val); - } - usleep (100000); /* sleep 100 ms */ - - /* second is reliable */ - status = sanei_genesys_get_status (dev, &val); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_slow_back_home: failed to read home sensor: %s\n", - 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; - } - - memcpy (local_reg, dev->reg, GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - - resolution=sanei_genesys_get_lowest_ydpi(dev); - - /* TODO add scan_mode to the API */ - scan_mode= dev->settings.scan_mode; - dev->settings.scan_mode=SCAN_MODE_LINEART; - status = gl846_init_scan_regs (dev, - local_reg, - resolution, - resolution, - 100, - 30000, - 100, - 100, - 8, - 1, - 0, - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_IGNORE_LINE_DISTANCE); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_slow_back_home: failed to set up registers: %s\n", - 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, GENESYS_GL846_MAX_REGS)); - - status = gl846_start_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_slow_back_home: failed to start motor: %s\n", - sane_strstatus (status)); - gl846_stop_action (dev); - /* send original registers */ - dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL846_MAX_REGS); - 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, - "gl846_slow_back_home: failed to read home sensor: %s\n", - sane_strstatus (status)); - return status; - } - - if (val & HOMESNR) /* home sensor */ - { - DBG (DBG_info, "gl846_slow_back_home: reached home position\n"); - gl846_stop_action (dev); - dev->scanhead_position_in_steps = 0; - DBGCOMPLETED; - return SANE_STATUS_GOOD; - } - usleep (100000); /* sleep 100 ms */ - ++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, - "gl846_slow_back_home: timeout while waiting for scanhead to go home\n"); - return SANE_STATUS_IO_ERROR; - } - - DBG (DBG_info, "gl846_slow_back_home: scanhead is still moving\n"); - 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; - uint8_t *data; - Genesys_Register_Set local_reg[GENESYS_GL846_MAX_REGS]; - int steps; - - int pixels = 600; - int dpi = 300; - - DBG (DBG_proc, "gl846_search_start_position\n"); - - memcpy (local_reg, dev->reg, - GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - - /* sets for a 200 lines * 600 pixels */ - /* normal scan with no shading */ - - status = gl846_init_scan_regs (dev, local_reg, dpi, dpi, 0, 0, /*we should give a small offset here~60 steps */ - 600, dev->model->search_lines, 8, 1, 1, /*green */ - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_IGNORE_LINE_DISTANCE); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_search_start_position: failed to set up registers: %s\n", - sane_strstatus (status)); - DBGCOMPLETED; - return status; - } - - /* send to scanner */ - status = dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL846_MAX_REGS); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_search_start_position: failed to bulk write registers: %s\n", - sane_strstatus (status)); - DBGCOMPLETED; - return status; - } - - size = pixels * dev->model->search_lines; - - data = malloc (size); - if (!data) - { - DBG (DBG_error, - "gl846_search_start_position: failed to allocate memory\n"); - return SANE_STATUS_NO_MEM; - } - - status = gl846_begin_scan (dev, local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, - "gl846_search_start_position: failed to begin scan: %s\n", - 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, size); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, - "gl846_search_start_position: failed to read data: %s\n", - sane_strstatus (status)); - return status; - } - - if (DBG_LEVEL >= DBG_data) - sanei_genesys_write_pnm_file ("search_position.pnm", data, 8, 1, pixels, - dev->model->search_lines); - - status = gl846_end_scan (dev, local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, - "gl846_search_start_position: failed to end scan: %s\n", - sane_strstatus (status)); - return status; - } - - /* update regs to copy ASIC internal state */ - memcpy (dev->reg, local_reg, - GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - -/*TODO: find out where sanei_genesys_search_reference_point - stores information, and use that correctly*/ - status = - sanei_genesys_search_reference_point (dev, data, 0, dpi, pixels, - dev->model->search_lines); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, - "gl846_search_start_position: failed to set search reference point: %s\n", - sane_strstatus (status)); - return status; - } - - free (data); - 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) -{ - SANE_Status status; - uint8_t channels; - uint8_t cksel; - - DBG (DBG_proc, "gl846_init_regs_for_coarse_calibration\n"); - - - cksel = (dev->calib_reg[reg_0x18].value & REG18_CKSEL) + 1; /* clock speed = 1..4 clocks */ - - /* set line size */ - if (dev->settings.scan_mode == SCAN_MODE_COLOR) /* single pass color */ - channels = 3; - else - channels = 1; - - status = gl846_init_scan_regs (dev, - dev->calib_reg, - dev->settings.xres, - dev->settings.yres, - 0, - 0, - dev->sensor.optical_res / cksel, - 20, - 16, - channels, - dev->settings.color_filter, - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_init_register_for_coarse_calibration: Failed to setup scan: %s\n", - sane_strstatus (status)); - return status; - } - - DBG (DBG_info, - "gl846_init_register_for_coarse_calibration: optical sensor res: %d dpi, actual res: %d\n", - dev->sensor.optical_res / cksel, dev->settings.xres); - - status = dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_init_register_for_coarse_calibration: Failed to bulk write registers: %s\n", - 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 - * */ -#ifndef UNIT_TESTING -static -#endif -SANE_Status -gl846_feed (Genesys_Device * dev, unsigned int steps) -{ - Genesys_Register_Set local_reg[GENESYS_GL846_MAX_REGS]; - SANE_Status status; - Genesys_Register_Set *r; - float resolution; - uint8_t val; - - DBGSTART; - DBG (DBG_io, "%s: steps=%d\n", __func__, steps); - - /* prepare local registers */ - memcpy (local_reg, dev->reg, GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - - resolution=sanei_genesys_get_lowest_ydpi(dev); - status = gl846_init_scan_regs (dev, - local_reg, - resolution, - resolution, - 0, - steps, - 100, - 3, - 8, - 3, - dev->settings.color_filter, - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_FEEDING | - SCAN_FLAG_IGNORE_LINE_DISTANCE); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_feed: failed to set up registers: %s\n", - 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, GENESYS_GL846_MAX_REGS)); - - status = gl846_start_action (dev); - 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, GENESYS_GL846_MAX_REGS); - 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) -{ - SANE_Status status; - float move; - - DBGSTART; - dev->calib_channels = 3; - - /* initial calibration reg values */ - memcpy (dev->calib_reg, dev->reg, GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - - dev->calib_resolution = sanei_genesys_compute_dpihw(dev,dev->settings.xres); - dev->calib_lines = dev->model->shading_lines; - if(dev->calib_resolution==4800) - dev->calib_lines *= 2; - dev->calib_pixels = (dev->sensor.sensor_pixels*dev->calib_resolution)/dev->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; - } - - status = gl846_init_scan_regs (dev, - dev->calib_reg, - dev->calib_resolution, - dev->calib_resolution, - 0, - move, - dev->calib_pixels, - dev->calib_lines, - 16, - dev->calib_channels, - dev->settings.color_filter, - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE | - SCAN_FLAG_IGNORE_LINE_DISTANCE); - - 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, dev->calib_reg, GENESYS_GL846_MAX_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) -{ - int channels; - int flags; - int depth; - float move; - int move_dpi; - float start; - - SANE_Status status; - - DBG (DBG_info, - "gl846_init_regs_for_scan settings:\nResolution: %uDPI\n" - "Lines : %u\nPPL : %u\nStartpos : %.3f/%.3f\nScan mode : %d\n\n", - dev->settings.yres, dev->settings.lines, dev->settings.pixels, - dev->settings.tl_x, dev->settings.tl_y, dev->settings.scan_mode); - - /* channels */ - if (dev->settings.scan_mode == SCAN_MODE_COLOR) /* single pass color */ - channels = 3; - else - channels = 1; - - /* depth */ - depth = dev->settings.depth; - if (dev->settings.scan_mode == SCAN_MODE_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, "gl846_init_regs_for_scan: move=%f steps\n", 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 * dev->sensor.optical_res) / MM_PER_INCH; - - flags = 0; - - /* emulated lineart from gray data is required for now */ - if(dev->settings.scan_mode == SCAN_MODE_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; - - status = gl846_init_scan_regs (dev, - dev->reg, - dev->settings.xres, - dev->settings.yres, - start, - move, - dev->settings.pixels, - dev->settings.lines, - depth, - channels, - dev->settings.color_filter, - flags); - - 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, 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,*buffer,*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,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-=((dev->sensor.CCD_start_xoffset*600)/dev->sensor.optical_res); - - /* turn pixel value into bytes 2x16 bits words */ - strpixel*=2*2; - pixels*=2*2; - - /* allocate temporary buffer */ - buffer=(uint8_t *)malloc(pixels); - memset(buffer,0,pixels); - 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; - - /* 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; - } - - RIEF (sanei_genesys_read_register (dev, 0xd0+i, &val), buffer); - addr = val * 8192 + 0x10000000; - status = sanei_genesys_write_ahb (dev->dn, dev->usb_mode, addr, pixels, buffer); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, "gl846_send_shading_data; write to AHB failed (%s)\n", - sane_strstatus (status)); - free(buffer); - return status; - } - } - - free(buffer); - 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) -{ - int num_pixels; - int total_size; - int used_res; - uint8_t *line; - int i, j; - SANE_Status status = SANE_STATUS_GOOD; - int val; - int channels, depth; - int avg[3], top[3], bottom[3]; - int turn; - char fn[20]; - uint16_t exp[3]; - Sensor_Profile *sensor; - 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,dev->settings.xres); - sensor=get_sensor_profile(dev->model->ccd_type, used_res); - num_pixels = (dev->sensor.sensor_pixels*used_res)/dev->sensor.optical_res; - - /* initial calibration reg values */ - memcpy (dev->calib_reg, dev->reg, GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - - /* set up for the calibration scan */ - status = gl846_init_scan_regs (dev, - dev->calib_reg, - used_res, - used_res, - 0, - 0, - num_pixels, - 1, - depth, - channels, - dev->settings.color_filter, - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE); - 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 */ - line = malloc (total_size); - if (!line) - return SANE_STATUS_NO_MEM; - - /* initial loop values and boundaries */ - exp[0]=sensor->expr; - exp[1]=sensor->expg; - exp[2]=sensor->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 */ - gl846_set_motor_power (dev->calib_reg, SANE_FALSE); - do - { - /* set up exposure */ - sanei_genesys_set_double(dev->calib_reg,REG_EXPR,exp[0]); - sanei_genesys_set_double(dev->calib_reg,REG_EXPG,exp[1]); - sanei_genesys_set_double(dev->calib_reg,REG_EXPB,exp[2]); - - /* write registers and scan data */ - RIEF (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS), line); - - DBG (DBG_info, "gl846_led_calibration: starting line reading\n"); - RIEF (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), line); - RIEF (sanei_genesys_read_data_from_scanner (dev, line, total_size), line); - - /* stop scanning */ - RIEF (gl846_stop_action (dev), line); - - if (DBG_LEVEL >= DBG_data) - { - snprintf (fn, 20, "led_%02d.pnm", turn); - sanei_genesys_write_pnm_file (fn, line, 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, "gl846_led_calibration: average: %d,%d,%d\n", 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, "gl846_led_calibration: acceptable exposure: %d,%d,%d\n", 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 */ - dev->sensor.regs_0x10_0x1d[0] = (exp[0] >> 8) & 0xff; - dev->sensor.regs_0x10_0x1d[1] = exp[0] & 0xff; - dev->sensor.regs_0x10_0x1d[2] = (exp[1] >> 8) & 0xff; - dev->sensor.regs_0x10_0x1d[3] = exp[1] & 0xff; - dev->sensor.regs_0x10_0x1d[4] = (exp[2] >> 8) & 0xff; - dev->sensor.regs_0x10_0x1d[5] = exp[2] & 0xff; - - /* cleanup before return */ - free (line); - - /* 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[reg_0x0b].value = val; - - /* prevent further writings by bulk write register */ - dev->reg[reg_0x0b].address = 0x00; - - /* 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 - */ -#ifndef UNIT_TESTING -static -#endif -SANE_Status -gl846_boot (Genesys_Device * dev, SANE_Bool cold) -{ - SANE_Status status; - 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, GENESYS_GL846_MAX_REGS)); - - /* Enable DRAM by setting a rising edge on bit 3 of reg 0x0b */ - val = dev->reg[reg_0x0b].value & REG0B_DRAMSEL; - val = (val | REG0B_ENBDRAM); - RIE (sanei_genesys_write_register (dev, REG0B, val)); - dev->reg[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[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[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 - */ -#ifndef UNIT_TESTING -static -#endif -SANE_Status gl846_init (Genesys_Device * dev) -{ - SANE_Status status; - - DBG_INIT (); - DBGSTART; - - status=sanei_genesys_asic_init(dev, GENESYS_GL846_MAX_REGS); - - 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)); - - if (s->val[OPT_SCAN_SW].b == s->last_val[OPT_SCAN_SW].b) - s->val[OPT_SCAN_SW].b = (val & scan) == 0; - if (s->val[OPT_FILE_SW].b == s->last_val[OPT_FILE_SW].b) - s->val[OPT_FILE_SW].b = (val & file) == 0; - if (s->val[OPT_EMAIL_SW].b == s->last_val[OPT_EMAIL_SW].b) - s->val[OPT_EMAIL_SW].b = (val & email) == 0; - if (s->val[OPT_COPY_SW].b == s->last_val[OPT_COPY_SW].b) - s->val[OPT_COPY_SW].b = (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, SANE_Bool forward, SANE_Bool black) -{ - unsigned int pixels, lines, channels; - SANE_Status status; - Genesys_Register_Set local_reg[GENESYS_GL846_MAX_REGS]; - size_t size; - uint8_t *data; - int steps, depth, dpi; - unsigned int pass, count, found, x, y; - char title[80]; - Genesys_Register_Set *r; - - DBG (DBG_proc, "gl846_search_strip %s %s\n", black ? "black" : "white", - forward ? "forward" : "reverse"); - - status = gl846_set_fe (dev, AFE_SET); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_search_strip: gl846_set_fe() failed: %s\n", - sane_strstatus(status)); - return status; - } - - status = gl846_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_search_strip: failed to stop: %s\n", - 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 = (dev->sensor.sensor_pixels * dpi) / dev->sensor.optical_res; - size = pixels * channels * lines * (depth / 8); - data = malloc (size); - if (!data) - { - DBG (DBG_error, "gl846_search_strip: failed to allocate memory\n"); - return SANE_STATUS_NO_MEM; - } - dev->scanhead_position_in_steps = 0; - - memcpy (local_reg, dev->reg, - GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set)); - - status = gl846_init_scan_regs (dev, - local_reg, - dpi, - dpi, - 0, - 0, - pixels, - lines, - depth, - channels, - 0, - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA); - if (status != SANE_STATUS_GOOD) - { - free(data); - DBG (DBG_error, - "gl846_search_strip: failed to setup for scan: %s\n", - 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, GENESYS_GL846_MAX_REGS); - if (status != SANE_STATUS_GOOD) - { - free(data); - DBG (DBG_error, - "gl846_search_strip: Failed to bulk write registers: %s\n", - sane_strstatus (status)); - return status; - } - - status = gl846_begin_scan (dev, local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, - "gl846_search_strip: failed to begin scan: %s\n", - 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, size); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, - "gl846_search_start_position: failed to read data: %s\n", - sane_strstatus (status)); - return status; - } - - status = gl846_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, "gl846_search_strip: gl846_stop_action failed\n"); - return status; - } - - pass = 0; - if (DBG_LEVEL >= DBG_data) - { - sprintf (title, "search_strip_%s_%s%02d.pnm", - black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass); - sanei_genesys_write_pnm_file (title, 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, GENESYS_GL846_MAX_REGS); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_search_strip: Failed to bulk write registers: %s\n", - sane_strstatus (status)); - return status; - } - - /* now start scan */ - status = gl846_begin_scan (dev, local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, - "gl846_search_strip: failed to begin scan: %s\n", - 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, size); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, - "gl846_search_start_position: failed to read data: %s\n", - sane_strstatus (status)); - return status; - } - - status = gl846_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - free (data); - DBG (DBG_error, "gl846_search_strip: gl846_stop_action failed\n"); - return status; - } - - if (DBG_LEVEL >= DBG_data) - { - sprintf (title, "search_strip_%s_%s%02d.pnm", - black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass); - sanei_genesys_write_pnm_file (title, 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, - "gl846_search_strip: strip found forward during pass %d at line %d\n", - pass, y); - } - else - { - DBG (DBG_data, - "gl846_search_strip: pixels=%d, count=%d (%d%%)\n", - 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, - "gl846_search_strip: strip found backward during pass %d \n", - pass); - } - else - { - DBG (DBG_data, - "gl846_search_strip: pixels=%d, count=%d (%d%%)\n", - pixels, count, (100 * count) / pixels); - } - } - pass++; - } - free (data); - if (found) - { - status = SANE_STATUS_GOOD; - DBG (DBG_info, "gl846_search_strip: %s strip found\n", - black ? "black" : "white"); - } - else - { - status = SANE_STATUS_UNSUPPORTED; - DBG (DBG_info, "gl846_search_strip: %s strip not found\n", - 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, "dark_average: avg[%d] = %d\n", k, avg[k]); - } - average = 0; - for (i = 0; i < channels; i++) - average += avg[i]; - average /= channels; - DBG (DBG_info, "dark_average: average = %d\n", average); - return average; -} - -static SANE_Status -gl846_offset_calibration (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t *first_line, *second_line, reg04; - unsigned int channels, bpp; - char title[32]; - int pass = 0, avg, total_size; - int topavg, bottomavg, resolution, lines; - int top, bottom, black_pixels, pixels; - - DBGSTART; - - /* no gain nor offset for AKM AFE */ - RIE (sanei_genesys_read_register (dev, REG04, ®04)); - if ((reg04 & REG04_FESET) == 0x02) - { - DBGCOMPLETED; - return status; - } - - /* offset calibration is always done in color mode */ - channels = 3; - resolution=dev->sensor.optical_res; - dev->calib_pixels = dev->sensor.sensor_pixels; - lines=1; - bpp=8; - pixels= (dev->sensor.sensor_pixels*resolution) / dev->sensor.optical_res; - black_pixels = (dev->sensor.black_pixels * resolution) / dev->sensor.optical_res; - DBG (DBG_io2, "gl846_offset_calibration: black_pixels=%d\n", black_pixels); - - status = gl846_init_scan_regs (dev, - dev->calib_reg, - resolution, - resolution, - 0, - 0, - pixels, - lines, - bpp, - channels, - dev->settings.color_filter, - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE); - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_offset_calibration: failed to setup scan: %s\n", - sane_strstatus (status)); - return status; - } - gl846_set_motor_power (dev->calib_reg, SANE_FALSE); - - /* allocate memory for scans */ - total_size = pixels * channels * lines * (bpp/8); /* colors * bytes_per_color * scan lines */ - - first_line = malloc (total_size); - if (!first_line) - return SANE_STATUS_NO_MEM; - - second_line = malloc (total_size); - if (!second_line) - { - free (first_line); - return SANE_STATUS_NO_MEM; - } - - /* init gain */ - dev->frontend.gain[0] = 0; - dev->frontend.gain[1] = 0; - dev->frontend.gain[2] = 0; - - /* scan with no move */ - bottom = 10; - dev->frontend.offset[0] = bottom; - dev->frontend.offset[1] = bottom; - dev->frontend.offset[2] = bottom; - - RIEF2 (gl846_set_fe(dev, AFE_SET), first_line, second_line); - RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS), first_line, second_line); - DBG (DBG_info, "gl846_offset_calibration: starting first line reading\n"); - RIEF2 (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line); - RIEF2 (sanei_genesys_read_data_from_scanner (dev, first_line, total_size), first_line, second_line); - if (DBG_LEVEL >= DBG_data) - { - snprintf(title,20,"offset%03d.pnm",bottom); - sanei_genesys_write_pnm_file (title, first_line, bpp, channels, pixels, lines); - } - - bottomavg = dark_average (first_line, pixels, lines, channels, black_pixels); - DBG (DBG_io2, "gl846_offset_calibration: bottom avg=%d\n", bottomavg); - - /* now top value */ - top = 255; - dev->frontend.offset[0] = top; - dev->frontend.offset[1] = top; - dev->frontend.offset[2] = top; - RIEF2 (gl846_set_fe(dev, AFE_SET), first_line, second_line); - RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS), first_line, second_line); - DBG (DBG_info, "gl846_offset_calibration: starting second line reading\n"); - RIEF2 (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line); - RIEF2 (sanei_genesys_read_data_from_scanner (dev, second_line, total_size), first_line, second_line); - - topavg = dark_average (second_line, pixels, lines, channels, black_pixels); - DBG (DBG_io2, "gl846_offset_calibration: top avg=%d\n", topavg); - - /* loop until acceptable level */ - while ((pass < 32) && (top - bottom > 1)) - { - pass++; - - /* settings for new scan */ - dev->frontend.offset[0] = (top + bottom) / 2; - dev->frontend.offset[1] = (top + bottom) / 2; - dev->frontend.offset[2] = (top + bottom) / 2; - - /* scan with no move */ - RIEF2 (gl846_set_fe(dev, AFE_SET), first_line, second_line); - RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS), first_line, second_line); - DBG (DBG_info, "gl846_offset_calibration: starting second line reading\n"); - RIEF2 (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line); - RIEF2 (sanei_genesys_read_data_from_scanner (dev, second_line, total_size), first_line, second_line); - - if (DBG_LEVEL >= DBG_data) - { - sprintf (title, "offset%03d.pnm", dev->frontend.offset[1]); - sanei_genesys_write_pnm_file (title, second_line, bpp, channels, pixels, lines); - } - - avg = dark_average (second_line, pixels, lines, channels, black_pixels); - DBG (DBG_info, "gl846_offset_calibration: avg=%d offset=%d\n", avg, - dev->frontend.offset[1]); - - /* compute new boundaries */ - if (topavg == avg) - { - topavg = avg; - top = dev->frontend.offset[1]; - } - else - { - bottomavg = avg; - bottom = dev->frontend.offset[1]; - } - } - DBG (DBG_info, "gl846_offset_calibration: offset=(%d,%d,%d)\n", dev->frontend.offset[0], dev->frontend.offset[1], dev->frontend.offset[2]); - - /* cleanup before return */ - free (first_line); - free (second_line); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static SANE_Status -gl846_coarse_gain_calibration (Genesys_Device * dev, int dpi) -{ - int pixels; - int total_size; - uint8_t *line, 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, "gl846_coarse_gain_calibration: dpi = %d\n", dpi); - - /* no gain nor offset for AKM AFE */ - RIE (sanei_genesys_read_register (dev, REG04, ®04)); - if ((reg04 & REG04_FESET) == 0x02) - { - DBGCOMPLETED; - return status; - } - - /* coarse gain calibration is always done in color mode */ - channels = 3; - - /* follow CKSEL */ - if(dev->settings.xres<dev->sensor.optical_res) - { - coeff=0.9; - /*resolution=dev->sensor.optical_res/2;*/ - resolution=dev->sensor.optical_res; - } - else - { - resolution=dev->sensor.optical_res; - coeff=1.0; - } - lines=10; - bpp=8; - pixels = (dev->sensor.sensor_pixels * resolution) / dev->sensor.optical_res; - - status = gl846_init_scan_regs (dev, - dev->calib_reg, - resolution, - resolution, - 0, - 0, - pixels, - lines, - bpp, - channels, - dev->settings.color_filter, - SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE); - gl846_set_motor_power (dev->calib_reg, SANE_FALSE); - - if (status != SANE_STATUS_GOOD) - { - DBG (DBG_error, - "gl846_coarse_calibration: failed to setup scan: %s\n", - sane_strstatus (status)); - return status; - } - - RIE (dev->model->cmd_set->bulk_write_register - (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS)); - - total_size = pixels * channels * (16/bpp) * lines; - - line = malloc (total_size); - if (!line) - return SANE_STATUS_NO_MEM; - - RIEF (gl846_set_fe(dev, AFE_SET), line); - RIEF (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), line); - RIEF (sanei_genesys_read_data_from_scanner (dev, line, total_size), line); - - if (DBG_LEVEL >= DBG_data) - sanei_genesys_write_pnm_file ("coarse.pnm", line, 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) dev->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.gain[j] = code; - - DBG (DBG_proc, - "gl846_coarse_gain_calibration: channel %d, max=%d, gain = %f, setting:%d\n", - j, max[j], gain[j], dev->frontend.gain[j]); - } - - if (dev->model->is_cis) - { - if (dev->frontend.gain[0] > dev->frontend.gain[1]) - dev->frontend.gain[0] = dev->frontend.gain[1]; - if (dev->frontend.gain[0] > dev->frontend.gain[2]) - dev->frontend.gain[0] = dev->frontend.gain[2]; - dev->frontend.gain[2] = dev->frontend.gain[1] = dev->frontend.gain[0]; - } - - free (line); - - 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 */ - - 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_bulk_full_size, - - gl846_set_fe, - gl846_set_powersaving, - gl846_save_power, - - gl846_set_motor_power, - gl846_set_lamp_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, - - gl846_slow_back_home, - NULL, - - sanei_genesys_bulk_write_register, - NULL, - gl846_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, - NULL -}; - -SANE_Status -sanei_gl846_init_cmd_set (Genesys_Device * dev) -{ - dev->model->cmd_set = &gl846_cmd_set; - return SANE_STATUS_GOOD; -} - -/* vim: set sw=2 cino=>2se-1sn-1s{s^-1st0(0u0 smarttab expandtab: */ |