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authorJörg Frings-Fürst <debian@jff-webhosting.net>2020-03-30 21:30:45 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2020-03-30 21:30:45 +0200
commitee770c2346eb37e0dcb8b6cf3eaacf3d8efd6bbc (patch)
tree58f05092be1a17a939e861f8cadcda1b6ca2ecef /backend/genesys_gl847.c
parent0da9e21872802cfc6e975b1ebaf9efb9e5934d84 (diff)
parentfef76e17ed4c607ea73b81279f9ef1d7121be900 (diff)
Merge branch 'release/experimental/1.0.29-1_experimental1'experimental/1.0.29-1_experimental1
Diffstat (limited to 'backend/genesys_gl847.c')
-rw-r--r--backend/genesys_gl847.c3824
1 files changed, 0 insertions, 3824 deletions
diff --git a/backend/genesys_gl847.c b/backend/genesys_gl847.c
deleted file mode 100644
index a3b35a2..0000000
--- a/backend/genesys_gl847.c
+++ /dev/null
@@ -1,3824 +0,0 @@
-/* sane - Scanner Access Now Easy.
-
- Copyright (C) 2010-2013 Stéphane Voltz <stef.dev@free.fr>
-
-
- This file is part of the SANE package.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
-
- As a special exception, the authors of SANE give permission for
- additional uses of the libraries contained in this release of SANE.
-
- The exception is that, if you link a SANE library with other files
- to produce an executable, this does not by itself cause the
- resulting executable to be covered by the GNU General Public
- License. Your use of that executable is in no way restricted on
- account of linking the SANE library code into it.
-
- This exception does not, however, invalidate any other reasons why
- the executable file might be covered by the GNU General Public
- License.
-
- If you submit changes to SANE to the maintainers to be included in
- a subsequent release, you agree by submitting the changes that
- those changes may be distributed with this exception intact.
-
- If you write modifications of your own for SANE, it is your choice
- whether to permit this exception to apply to your modifications.
- If you do not wish that, delete this exception notice.
-*/
-
-#undef BACKEND_NAME
-#define BACKEND_NAME genesys_gl847
-
-#include "genesys_gl847.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
-gl847_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, "gl847_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,
- "gl847_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,
- "gl847_bulk_read_data failed while reading bulk data: %s\n",
- sane_strstatus (status));
- return status;
- }
- done=read;
- DBG (DBG_io2, "gl847_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,
- "gl847_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,
- "gl847_bulk_read_data failed while reading bulk data: %s\n",
- sane_strstatus (status));
- return status;
- }
- done=read;
- DBG (DBG_io2, "gl847_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
-gl847_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
-gl847_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
-gl847_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
-gl847_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
-gl847_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
-gl847_test_buffer_empty_bit (SANE_Byte val)
-{
- if (val & REG41_BUFEMPTY)
- return SANE_TRUE;
- return SANE_FALSE;
-}
-
-static SANE_Bool
-gl847_test_motor_flag_bit (SANE_Byte val)
-{
- if (val & REG41_MOTORENB)
- return SANE_TRUE;
- return SANE_FALSE;
-}
-
-/**
- * compute the step multiplier used
- */
-static int
-gl847_get_step_multiplier (Genesys_Register_Set * regs)
-{
- 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 gl847_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
-gl847_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
-gl847_bulk_full_size (void)
-{
- return GENESYS_GL847_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
-gl847_init_registers (Genesys_Device * dev)
-{
- int lide700=0;
- uint8_t val;
-
- DBGSTART;
- /* 700F class needs some different initial settings */
- if (strcmp (dev->model->name, "canon-lide-700f") == 0)
- {
- lide700 = 1;
- }
-
- memset (dev->reg, 0,
- GENESYS_GL847_MAX_REGS * sizeof (Genesys_Register_Set));
-
- SETREG (0x01, 0x82);
- SETREG (0x02, 0x18);
- SETREG (0x03, 0x50);
- SETREG (0x04, 0x12);
- SETREG (0x05, 0x80);
- SETREG (0x06, 0x50); /* FASTMODE + POWERBIT */
- SETREG (0x08, 0x10);
- SETREG (0x09, 0x01);
- SETREG (0x0a, 0x00);
- SETREG (0x0b, 0x01);
- SETREG (0x0c, 0x02);
-
- /* LED exposures */
- SETREG (0x10, 0x00);
- SETREG (0x11, 0x00);
- SETREG (0x12, 0x00);
- SETREG (0x13, 0x00);
- SETREG (0x14, 0x00);
- SETREG (0x15, 0x00);
-
- SETREG (0x16, 0x10);
- SETREG (0x17, 0x08);
- SETREG (0x18, 0x00);
-
- /* EXPDMY */
- SETREG (0x19, 0x50);
-
- SETREG (0x1a, 0x34);
- SETREG (0x1b, 0x00);
- SETREG (0x1c, 0x02);
- SETREG (0x1d, 0x04);
- SETREG (0x1e, 0x10);
- SETREG (0x1f, 0x04);
- SETREG (0x20, 0x02);
- SETREG (0x21, 0x10);
- SETREG (0x22, 0x7f);
- SETREG (0x23, 0x7f);
- SETREG (0x24, 0x10);
- SETREG (0x25, 0x00);
- SETREG (0x26, 0x00);
- SETREG (0x27, 0x00);
- SETREG (0x2c, 0x09);
- SETREG (0x2d, 0x60);
- SETREG (0x2e, 0x80);
- SETREG (0x2f, 0x80);
- SETREG (0x30, 0x00);
- SETREG (0x31, 0x10);
- SETREG (0x32, 0x15);
- SETREG (0x33, 0x0e);
- SETREG (0x34, 0x40);
- SETREG (0x35, 0x00);
- SETREG (0x36, 0x2a);
- SETREG (0x37, 0x30);
- SETREG (0x38, 0x2a);
- SETREG (0x39, 0xf8);
- SETREG (0x3d, 0x00);
- SETREG (0x3e, 0x00);
- SETREG (0x3f, 0x00);
- SETREG (0x52, 0x03);
- SETREG (0x53, 0x07);
- SETREG (0x54, 0x00);
- SETREG (0x55, 0x00);
- SETREG (0x56, 0x00);
- SETREG (0x57, 0x00);
- SETREG (0x58, 0x2a);
- SETREG (0x59, 0xe1);
- SETREG (0x5a, 0x55);
- SETREG (0x5e, 0x41);
- SETREG (0x5f, 0x40);
- SETREG (0x60, 0x00);
- SETREG (0x61, 0x21);
- SETREG (0x62, 0x40);
- SETREG (0x63, 0x00);
- SETREG (0x64, 0x21);
- SETREG (0x65, 0x40);
- SETREG (0x67, 0x80);
- SETREG (0x68, 0x80);
- SETREG (0x69, 0x20);
- SETREG (0x6a, 0x20);
-
- /* CK1MAP */
- SETREG (0x74, 0x00);
- SETREG (0x75, 0x00);
- SETREG (0x76, 0x3c);
-
- /* CK3MAP */
- SETREG (0x77, 0x00);
- SETREG (0x78, 0x00);
- SETREG (0x79, 0x9f);
-
- /* CK4MAP */
- SETREG (0x7a, 0x00);
- SETREG (0x7b, 0x00);
- SETREG (0x7c, 0x55);
-
- SETREG (0x7d, 0x00);
-
- /* NOTE: autoconf is a non working option */
- SETREG (0x87, 0x02);
- SETREG (0x9d, 0x06);
- SETREG (0xa2, 0x0f);
- SETREG (0xbd, 0x18);
- SETREG (0xfe, 0x08);
-
- /* gamma[0] and gamma[256] values */
- SETREG (0xbe, 0x00);
- SETREG (0xc5, 0x00);
- SETREG (0xc6, 0x00);
- SETREG (0xc7, 0x00);
- SETREG (0xc8, 0x00);
- SETREG (0xc9, 0x00);
- SETREG (0xca, 0x00);
-
- /* LiDE 700 fixups */
- if(lide700)
- {
- SETREG (0x5f, 0x04);
- SETREG (0x7d, 0x80);
-
- /* we write to these registers only once */
- val=0;
- sanei_genesys_write_register (dev, REG7E, val);
- sanei_genesys_write_register (dev, REG9E, val);
- sanei_genesys_write_register (dev, REG9F, val);
- sanei_genesys_write_register (dev, REGAB, val);
- }
-
- /* fine tune upon device description */
- dev->reg[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_GL847_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
-gl847_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
-gl847_set_ad_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, "gl847_set_ad_fe(): setting DAC %u\n",
- dev->model->dac_type);
-
- /* sets to default values */
- sanei_genesys_init_fe (dev);
- }
-
- /* reset DAC */
- status = sanei_genesys_fe_write_data (dev, 0x00, 0x80);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error, "gl847_set_ad_fe: failed to write reg0: %s\n",
- sane_strstatus (status));
- return status;
- }
-
- /* 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, "gl847_set_ad_fe: failed to write reg0: %s\n",
- 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, "gl847_set_ad_fe: failed to write reg1: %s\n",
- 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,
- "gl847_set_ad_fe: failed to write gain %d: %s\n", 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,
- "gl847_set_ad_fe: failed to write offset %d: %s\n", i,
- sane_strstatus (status));
- return status;
- }
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-static SANE_Status
-gl847_homsnr_gpio(Genesys_Device *dev)
-{
-uint8_t val;
-SANE_Status status=SANE_STATUS_GOOD;
-
- if (dev->model->gpo_type == GPO_CANONLIDE700)
- {
- RIE (sanei_genesys_read_register (dev, REG6C, &val));
- val &= ~REG6C_GPIO10;
- RIE (sanei_genesys_write_register (dev, REG6C, val));
- }
- else
- {
- RIE (sanei_genesys_read_register (dev, REG6C, &val));
- val |= REG6C_GPIO10;
- RIE (sanei_genesys_write_register (dev, REG6C, val));
- }
- return status;
-}
-
-/* Set values of analog frontend */
-static SANE_Status
-gl847_set_fe (Genesys_Device * dev, uint8_t set)
-{
- SANE_Status status;
- uint8_t val;
-
- DBG (DBG_proc, "gl847_set_fe (%s)\n",
- set == AFE_INIT ? "init" : set == AFE_SET ? "set" : set ==
- AFE_POWER_SAVE ? "powersave" : "huh?");
-
- RIE (sanei_genesys_read_register (dev, REG04, &val));
-
- /* route to AD devices */
- if ((val & REG04_FESET) == 0x02)
- {
- return gl847_set_ad_fe (dev, set);
- }
-
- /* for now there is no support yet for wolfson fe */
- DBG (DBG_proc, "gl847_set_fe(): unsupported frontend type %d\n",
- dev->reg[reg_0x04].value & REG04_FESET);
-
- DBGCOMPLETED;
- return SANE_STATUS_UNSUPPORTED;
-}
-
-
-/** @brief set up motor related register for scan
- */
-static SANE_Status
-gl847_init_motor_regs_scan (Genesys_Device * dev,
- 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, effective;
- int fast_step_type;
- unsigned int ccdlmt,tgtime;
-
- DBGSTART;
- DBG (DBG_proc, "gl847_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 = gl847_get_step_multiplier (reg);
-
- use_fast_fed=0;
- /* no fast fed since feed works well */
- if(dev->settings.yres==4444 && feed_steps>100
- && ((flags & MOTOR_FLAG_FEED)==0))
- {
- use_fast_fed=1;
- }
- DBG (DBG_io, "%s: use_fast_fed=%d\n", __func__, use_fast_fed);
-
- sanei_genesys_set_triple(reg, REG_LINCNT, scan_lines);
- DBG (DBG_io, "%s: lincnt=%d\n", __func__, scan_lines);
-
- /* compute register 02 value */
- r = sanei_genesys_get_address (reg, REG02);
- r->value = 0x00;
- 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,
- gl847_motors);
- RIE(gl847_send_slope_table (dev, SCAN_TABLE, scan_table, scan_steps*factor));
- RIE(gl847_send_slope_table (dev, BACKTRACK_TABLE, scan_table, scan_steps*factor));
-
- /* fast table */
- fast_dpi=sanei_genesys_get_lowest_ydpi(dev);
- fast_step_type=scan_step_type;
- if(scan_step_type>=2)
- {
- fast_step_type=2;
- }
-
- sanei_genesys_slope_table(fast_table,
- &fast_steps,
- fast_dpi,
- scan_exposure_time,
- dev->motor.base_ydpi,
- fast_step_type,
- factor,
- dev->model->motor_type,
- gl847_motors);
-
- /* manual override of high start value */
- fast_table[0]=fast_table[1];
-
- RIE(gl847_send_slope_table (dev, STOP_TABLE, fast_table, fast_steps*factor));
- RIE(gl847_send_slope_table (dev, FAST_TABLE, fast_table, fast_steps*factor));
- RIE(gl847_send_slope_table (dev, HOME_TABLE, fast_table, fast_steps*factor));
-
- /* correct move distance by acceleration and deceleration amounts */
- feedl=feed_steps;
- if (use_fast_fed)
- {
- feedl<<=fast_step_type;
- dist=(scan_steps+2*fast_steps)*factor;
- /* TODO read and decode REGAB */
- r = sanei_genesys_get_address (reg, 0x5e);
- dist += (r->value & 31);
- /* FEDCNT */
- r = sanei_genesys_get_address (reg, REG_FEDCNT);
- dist += r->value;
- }
- else
- {
- feedl<<=scan_step_type;
- dist=scan_steps*factor;
- if (flags & MOTOR_FLAG_FEED)
- dist *=2;
- }
- DBG (DBG_io2, "%s: scan steps=%d\n", __func__, scan_steps);
- DBG (DBG_io2, "%s: acceleration distance=%d\n", __func__, dist);
-
- /* check for overflow */
- if(dist<feedl)
- feedl -= dist;
- else
- feedl = 0;
-
- sanei_genesys_set_triple(reg,REG_FEEDL,feedl);
- DBG (DBG_io ,"%s: feedl=%d\n",__func__,feedl);
-
- r = sanei_genesys_get_address (reg, REG0C);
- ccdlmt=(r->value & REG0C_CCDLMT)+1;
-
- r = sanei_genesys_get_address (reg, REG1C);
- tgtime=1<<(r->value & REG1C_TGTIME);
-
- /* hi res motor speed GPIO */
- RIE (sanei_genesys_read_register (dev, REG6C, &effective));
-
- /* if quarter step, bipolar Vref2 */
- if (scan_step_type > 1)
- {
- if (scan_step_type < 3)
- {
- val = effective & ~REG6C_GPIO13;
- }
- else
- {
- val = effective | REG6C_GPIO13;
- }
- }
- else
- {
- val = effective;
- }
- RIE (sanei_genesys_write_register (dev, REG6C, val));
-
- /* effective scan */
- RIE (sanei_genesys_read_register (dev, REG6C, &effective));
- val = effective | REG6C_GPIO10;
- RIE (sanei_genesys_write_register (dev, REG6C, val));
-
- min_restep=scan_steps/2-1;
- if (min_restep < 1)
- min_restep = 1;
- r = sanei_genesys_get_address (reg, REG_FWDSTEP);
- r->value = min_restep;
- r = sanei_genesys_get_address (reg, REG_BWDSTEP);
- r->value = min_restep;
-
- sanei_genesys_calculate_zmode2(use_fast_fed,
- scan_exposure_time*ccdlmt*tgtime,
- scan_table,
- scan_steps*factor,
- feedl,
- min_restep*factor,
- &z1,
- &z2);
-
- DBG (DBG_info, "gl847_init_motor_regs_scan: z1 = %d\n", z1);
- sanei_genesys_set_triple(reg, REG60, z1 | (scan_step_type << (16+REG60S_STEPSEL)));
-
- DBG (DBG_info, "gl847_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 = REG67_MTRPWM;
-
- r = sanei_genesys_get_address (reg, REG68);
- r->value = REG68_FASTPWM;
-
- r = sanei_genesys_get_address (reg, REG_STEPNO);
- r->value = scan_steps;
-
- r = sanei_genesys_get_address (reg, REG_FASTNO);
- r->value = scan_steps;
-
- r = sanei_genesys_get_address (reg, REG_FSHDEC);
- r->value = scan_steps;
-
- r = sanei_genesys_get_address (reg, REG_FMOVNO);
- r->value = fast_steps;
-
- r = sanei_genesys_get_address (reg, REG_FMOVDEC);
- r->value = fast_steps;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-
-/** @brief set up registers related to sensor
- * Set up the following registers
- 0x01
- 0x03
- 0x10-0x015 R/G/B exposures
- 0x19 EXPDMY
- 0x2e BWHI
- 0x2f BWLO
- 0x04
- 0x87
- 0x05
- 0x2c,0x2d DPISET
- 0x30,0x31 STRPIXEL
- 0x32,0x33 ENDPIXEL
- 0x35,0x36,0x37 MAXWD [25:2] (>>2)
- 0x38,0x39 LPERIOD
- 0x34 DUMMY
- */
-static SANE_Status
-gl847_init_optical_regs_scan (Genesys_Device * dev,
- 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, "gl847_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);
- gl847_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 = gl847_set_fe (dev, AFE_SET);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_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 |= 0x14; /* red filter */
- break;
- case 2:
- r->value |= 0x1c; /* blue filter */
- break;
- default:
- r->value |= 0x18; /* green filter */
- break;
- }
- }
- else
- r->value |= 0x10; /* mono */
-
- /* register 05 */
- r = sanei_genesys_get_address (reg, REG05);
-
- /* set up dpihw */
- r->value &= ~REG05_DPIHW;
- switch(dpihw)
- {
- case 600:
- r->value |= REG05_DPIHW_600;
- break;
- case 1200:
- r->value |= REG05_DPIHW_1200;
- break;
- case 2400:
- r->value |= REG05_DPIHW_2400;
- break;
- case 4800:
- r->value |= REG05_DPIHW_4800;
- break;
- }
-
- /* enable gamma tables */
- if (flags & OPTICAL_FLAG_DISABLE_GAMMA)
- r->value &= ~REG05_GMMENB;
- else
- r->value |= REG05_GMMENB;
-
- /* CIS scanners can do true gray by setting LEDADD */
- /* we set up LEDADD only when asked */
- if (dev->model->is_cis == SANE_TRUE)
- {
- r = sanei_genesys_get_address (reg, 0x87);
- r->value &= ~REG87_LEDADD;
- if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD))
- {
- r->value |= REG87_LEDADD;
- }
- /* RGB weighting
- r = sanei_genesys_get_address (reg, 0x01);
- r->value &= ~REG01_TRUEGRAY;
- if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD))
- {
- r->value |= REG01_TRUEGRAY;
- }*/
- }
-
- /* words(16bit) before gamma, conversion to 8 bit or lineart*/
- words_per_line = (used_pixels * dpiset) / dpihw;
- bytes=depth/8;
- if (depth == 1)
- {
- words_per_line = (words_per_line+7)/8 ;
- dev->len = (dev->len >> 3) + ((dev->len & 7) ? 1 : 0);
- dev->dist = (dev->dist >> 3) + ((dev->dist & 7) ? 1 : 0);
- }
- else
- {
- words_per_line *= bytes;
- dev->dist *= bytes;
- dev->len *= bytes;
- }
-
- dev->bpl = words_per_line;
- dev->cur=0;
- dev->segnb=segnb;
- dev->line_interp = 0;
-
- sanei_genesys_set_double(reg,REG_DPISET,dpiset);
- DBG (DBG_io2, "%s: dpiset used=%d\n", __func__, dpiset);
-
- sanei_genesys_set_double(reg,REG_STRPIXEL,startx);
- sanei_genesys_set_double(reg,REG_ENDPIXEL,endx);
- DBG (DBG_io2, "%s: startx=%d\n", __func__, startx);
- DBG (DBG_io2, "%s: endx =%d\n", __func__, endx);
-
- DBG (DBG_io2, "%s: used_pixels=%d\n", __func__, used_pixels);
- DBG (DBG_io2, "%s: pixels =%d\n", __func__, pixels);
- DBG (DBG_io2, "%s: depth =%d\n", __func__, depth);
- DBG (DBG_io2, "%s: dev->bpl =%lu\n", __func__, (unsigned long)dev->bpl);
- DBG (DBG_io2, "%s: dev->len =%lu\n", __func__, (unsigned long)dev->len);
- DBG (DBG_io2, "%s: dev->dist =%lu\n", __func__, (unsigned long)dev->dist);
- DBG (DBG_io2, "%s: dev->segnb =%lu\n", __func__, (unsigned long)dev->segnb);
-
- words_per_line *= channels;
- dev->wpl = words_per_line;
-
- 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
-gl847_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,
- "gl847_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, "gl847_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 = gl847_compute_exposure (dev, used_res);
- scan_step_type = sanei_genesys_compute_step_type(gl847_motors, dev->model->motor_type, exposure_time);
-
- DBG (DBG_info, "gl847_init_scan_regs : exposure_time=%d pixels\n", exposure_time);
- DBG (DBG_info, "gl847_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 = gl847_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, "gl847_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 = gl847_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,
- "gl847_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, "gl847_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
-gl847_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 = 0;
- int dummy = 0;
- int max_shift;
-
- SANE_Bool half_ccd; /* false: full CCD res is used, true, half max CCD res is used */
- int optical_res;
-
- DBG (DBG_info,
- "gl847_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,
- "gl847_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, "gl847_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 = gl847_compute_exposure (dev, used_res);
- DBG (DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time);
-
- /* max_shift */
- max_shift=sanei_genesys_compute_max_shift(dev,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
-gl847_set_motor_power (Genesys_Register_Set * regs, SANE_Bool set)
-{
-
- DBG (DBG_proc, "gl847_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
-gl847_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
-gl847_save_power (Genesys_Device * dev, SANE_Bool enable)
-{
- DBG (DBG_proc, "gl847_save_power: enable = %d\n", enable);
- if (dev == NULL)
- return SANE_STATUS_INVAL;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-gl847_set_powersaving (Genesys_Device * dev, int delay /* in minutes */ )
-{
- DBG (DBG_proc, "gl847_set_powersaving (delay = %d)\n", delay);
- if (dev == NULL)
- return SANE_STATUS_INVAL;
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-static SANE_Status
-gl847_start_action (Genesys_Device * dev)
-{
- return sanei_genesys_write_register (dev, 0x0f, 0x01);
-}
-
-#ifndef UNIT_TESTING
-static
-#endif
-SANE_Status
-gl847_stop_action (Genesys_Device * dev)
-{
- SANE_Status status;
- uint8_t val40, val;
- unsigned int loop;
-
- DBGSTART;
-
- /* post scan gpio : without that HOMSNR is unreliable */
- gl847_homsnr_gpio(dev);
- status = sanei_genesys_get_status (dev, &val);
- if (DBG_LEVEL >= DBG_io)
- {
- sanei_genesys_print_status (val);
- }
-
- status = sanei_genesys_read_register (dev, REG40, &val40);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "%s: failed to read home sensor: %s\n", __func__,
- sane_strstatus (status));
- DBGCOMPLETED;
- return status;
- }
-
- /* only stop action if needed */
- if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG))
- {
- DBG (DBG_info, "%s: already stopped\n", __func__);
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
- }
-
- /* ends scan */
- val = 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
-gl847_begin_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
- SANE_Bool start_motor)
-{
- SANE_Status status;
- uint8_t val;
- Genesys_Register_Set *r;
-
- DBGSTART;
-
- /* clear GPIO 10 */
- if (dev->model->gpo_type != GPO_CANONLIDE700)
- {
- RIE (sanei_genesys_read_register (dev, REG6C, &val));
- val &= ~REG6C_GPIO10;
- RIE (sanei_genesys_write_register (dev, REG6C, val));
- }
-
- val = REG0D_CLRLNCNT;
- RIE (sanei_genesys_write_register (dev, REG0D, val));
- val = REG0D_CLRMCNT;
- RIE (sanei_genesys_write_register (dev, REG0D, val));
-
- RIE (sanei_genesys_read_register (dev, REG01, &val));
- val |= REG01_SCAN;
- RIE (sanei_genesys_write_register (dev, REG01, val));
- r = sanei_genesys_get_address (reg, REG01);
- r->value = val;
-
- if (start_motor)
- {
- RIE (sanei_genesys_write_register (dev, REG0F, 1));
- }
- else
- {
- RIE (sanei_genesys_write_register (dev, REG0F, 0));
- }
-
- DBGCOMPLETED;
-
- return status;
-}
-
-
-/* Send the stop scan command */
-#ifndef UNIT_TESTING
-static
-#endif
- SANE_Status
-gl847_end_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
- SANE_Bool check_stop)
-{
- SANE_Status status;
-
- DBG (DBG_proc, "gl847_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 = gl847_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_end_scan: failed to stop: %s\n",
- sane_strstatus (status));
- return status;
- }
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-/** rewind scan
- * Move back by the same amount of distance than previous scan.
- * @param dev device to rewind
- * @returns SANE_STATUS_GOOD on success
- */
-GENESYS_STATIC
-SANE_Status gl847_rewind(Genesys_Device * dev)
-{
- SANE_Status status;
- uint8_t byte;
-
- DBGSTART;
-
- /* set motor reverse */
- RIE (sanei_genesys_read_register (dev, 0x02, &byte));
- byte |= 0x04;
- RIE (sanei_genesys_write_register(dev, 0x02, byte));
-
- /* and start scan, then wait completion */
- RIE (gl847_begin_scan (dev, dev->reg, SANE_TRUE));
- do
- {
- usleep(100*1000);
- RIE (sanei_genesys_read_register (dev, REG40, &byte));
- }
- while(byte & REG40_MOTMFLG);
- RIE (gl847_end_scan (dev, dev->reg, SANE_TRUE));
-
- /* restore direction */
- RIE (sanei_genesys_read_register (dev, 0x02, &byte));
- byte &= 0xfb;
- RIE (sanei_genesys_write_register(dev, 0x02, byte));
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-/** Park head
- * Moves the slider to the home (top) position slowly
- * @param dev device to park
- * @param wait_until_home true to make the function waiting for head
- * to be home before returning, if fals returne immediately
- * @returns SANE_STATUS_GOO on success */
-GENESYS_STATIC
-SANE_Status
-gl847_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home)
-{
- Genesys_Register_Set local_reg[GENESYS_GL847_MAX_REGS];
- SANE_Status status;
- Genesys_Register_Set *r;
- float resolution;
- uint8_t val;
- int loop = 0;
- int scan_mode;
-
- DBG (DBG_proc, "gl847_slow_back_home (wait_until_home = %d)\n",
- wait_until_home);
-
- /* post scan gpio : without that HOMSNR is unreliable */
- gl847_homsnr_gpio(dev);
-
- /* first read gives HOME_SENSOR true */
- status = sanei_genesys_get_status (dev, &val);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_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,
- "gl847_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_GL847_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 = gl847_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,
- "gl847_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_GL847_MAX_REGS));
-
- status = gl847_start_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_slow_back_home: failed to start motor: %s\n",
- sane_strstatus (status));
- gl847_stop_action (dev);
- /* send original registers */
- dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL847_MAX_REGS);
- return status;
- }
-
- /* post scan gpio : without that HOMSNR is unreliable */
- gl847_homsnr_gpio(dev);
-
- if (wait_until_home)
- {
- while (loop < 300) /* do not wait longer then 30 seconds */
- {
- status = sanei_genesys_get_status (dev, &val);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_slow_back_home: failed to read home sensor: %s\n",
- sane_strstatus (status));
- return status;
- }
-
- if (val & HOMESNR) /* home sensor */
- {
- DBG (DBG_info, "gl847_slow_back_home: reached home position\n");
- gl847_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 */
- gl847_stop_action (dev);
- DBG (DBG_error,
- "gl847_slow_back_home: timeout while waiting for scanhead to go home\n");
- return SANE_STATUS_IO_ERROR;
- }
-
- DBG (DBG_info, "gl847_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
-gl847_search_start_position (Genesys_Device * dev)
-{
- int size;
- SANE_Status status;
- uint8_t *data;
- Genesys_Register_Set local_reg[GENESYS_GL847_MAX_REGS];
- int steps;
-
- int pixels = 600;
- int dpi = 300;
-
- DBG (DBG_proc, "gl847_search_start_position\n");
-
- memcpy (local_reg, dev->reg,
- GENESYS_GL847_MAX_REGS * sizeof (Genesys_Register_Set));
-
- /* sets for a 200 lines * 600 pixels */
- /* normal scan with no shading */
-
- status = gl847_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,
- "gl847_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_GL847_MAX_REGS);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_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,
- "gl847_search_start_position: failed to allocate memory\n");
- return SANE_STATUS_NO_MEM;
- }
-
- status = gl847_begin_scan (dev, local_reg, SANE_TRUE);
- if (status != SANE_STATUS_GOOD)
- {
- free (data);
- DBG (DBG_error,
- "gl847_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,
- "gl847_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 = gl847_end_scan (dev, local_reg, SANE_TRUE);
- if (status != SANE_STATUS_GOOD)
- {
- free (data);
- DBG (DBG_error,
- "gl847_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_GL847_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,
- "gl847_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
-gl847_init_regs_for_coarse_calibration (Genesys_Device * dev)
-{
- SANE_Status status;
- uint8_t channels;
- uint8_t cksel;
-
- DBG (DBG_proc, "gl847_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 = gl847_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,
- "gl847_init_register_for_coarse_calibration: Failed to setup scan: %s\n",
- sane_strstatus (status));
- return status;
- }
-
- DBG (DBG_info,
- "gl847_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_GL847_MAX_REGS);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_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
-gl847_feed (Genesys_Device * dev, unsigned int steps)
-{
- Genesys_Register_Set local_reg[GENESYS_GL847_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_GL847_MAX_REGS * sizeof (Genesys_Register_Set));
-
- resolution=sanei_genesys_get_lowest_ydpi(dev);
- status = gl847_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,
- "gl847_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_GL847_MAX_REGS));
-
- status = gl847_start_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus (status));
- gl847_stop_action (dev);
-
- /* restore original registers */
- dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL847_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(gl847_stop_action (dev));
-
- DBGCOMPLETED;
- return SANE_STATUS_GOOD;
-}
-
-
-/* init registers for shading calibration */
-static SANE_Status
-gl847_init_regs_for_shading (Genesys_Device * dev)
-{
- SANE_Status status;
- float move;
-
- DBGSTART;
- dev->calib_channels = 3;
-
- /* initial calibration reg values */
- memcpy (dev->calib_reg, dev->reg, GENESYS_GL847_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__, (int)dev->calib_lines);
- DBG (DBG_io, "%s: calib_pixels = %d\n", __func__, (int)dev->calib_pixels);
-
- /* this is aworkaround insufficent distance for slope
- * motor acceleration TODO special motor slope for shading */
- move=1;
- if(dev->calib_resolution<1200)
- {
- move=40;
- }
-
- status = gl847_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_GL847_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
-gl847_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,
- "gl847_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 = gl847_feed (dev, move-500);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error, "%s: failed to move to scan area\n",__func__);
- return status;
- }
- move=500;
- }
-
- DBG (DBG_info, "gl124_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 = gl847_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
-gl847_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;
- }
-
- RIE (sanei_genesys_read_register (dev, 0xd0+i, &val));
- 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, "gl847_send_shading_data; write to AHB failed (%s)\n",
- sane_strstatus (status));
- 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
-gl847_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(gl847_feed (dev, move));
- }
- DBG (DBG_io, "%s: move=%f steps\n", __func__, move);
-
- /* offset calibration is always done in color mode */
- channels = 3;
- depth=16;
- used_res=sanei_genesys_compute_dpihw(dev,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_GL847_MAX_REGS * sizeof (Genesys_Register_Set));
-
- /* set up for the calibration scan */
- status = gl847_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 */
- gl847_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_GL847_MAX_REGS), line);
-
- DBG (DBG_info, "gl847_led_calibration: starting line reading\n");
- RIEF (gl847_begin_scan (dev, dev->calib_reg, SANE_TRUE), line);
- RIEF (sanei_genesys_read_data_from_scanner (dev, line, total_size), line);
-
- /* stop scanning */
- RIEF (gl847_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, "gl847_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, "gl847_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=gl847_slow_back_home (dev, SANE_TRUE);
- }
-
- DBGCOMPLETED;
- return status;
-}
-
-/**
- * set up GPIO/GPOE for idle state
- */
-static SANE_Status
-gl847_init_gpio (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int idx=0;
-
- DBGSTART;
-
- /* search GPIO profile */
- while(gpios[idx].sensor_id!=0 && dev->model->gpo_type!=gpios[idx].sensor_id)
- {
- idx++;
- }
- if(gpios[idx].sensor_id==0)
- {
- DBG (DBG_error, "%s: failed to find GPIO profile for sensor_id=%d\n", __func__, dev->model->ccd_type);
- return SANE_STATUS_INVAL;
- }
-
- RIE (sanei_genesys_write_register (dev, REGA7, gpios[idx].ra7));
- RIE (sanei_genesys_write_register (dev, REGA6, gpios[idx].ra6));
-
- RIE (sanei_genesys_write_register (dev, REG6E, gpios[idx].r6e));
- RIE (sanei_genesys_write_register (dev, REG6C, 0x00));
-
- RIE (sanei_genesys_write_register (dev, REG6B, gpios[idx].r6b));
- RIE (sanei_genesys_write_register (dev, REG6C, gpios[idx].r6c));
- RIE (sanei_genesys_write_register (dev, REG6D, gpios[idx].r6d));
- RIE (sanei_genesys_write_register (dev, REG6E, gpios[idx].r6e));
- RIE (sanei_genesys_write_register (dev, REG6F, gpios[idx].r6f));
-
- RIE (sanei_genesys_write_register (dev, REGA8, gpios[idx].ra8));
- RIE (sanei_genesys_write_register (dev, REGA9, gpios[idx].ra9));
-
- DBGCOMPLETED;
- return status;
-}
-
-/**
- * set memory layout by filling values in dedicated registers
- */
-static SANE_Status
-gl847_init_memory_layout (Genesys_Device * dev)
-{
- SANE_Status status = SANE_STATUS_GOOD;
- int idx = 0;
- uint8_t val;
-
- DBG (DBG_proc, "gl847_init_memory_layout\n");
-
- /* point to per model memory layout */
- idx = 0;
- if (strcmp (dev->model->name, "canon-lide-100") == 0)
- {
- idx = 0;
- }
- if (strcmp (dev->model->name, "canon-lide-200") == 0)
- {
- idx = 1;
- }
- if (strcmp (dev->model->name, "canon-5600f") == 0)
- {
- idx = 2;
- }
- if (strcmp (dev->model->name, "canon-lide-700f") == 0)
- {
- idx = 3;
- }
-
- /* CLKSET nd 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 data. */
- /* values must be multiplied by 8192=0x4000 to give address on AHB */
- /* R-Channel shading bank0 address setting for CIS */
- sanei_genesys_write_register (dev, 0xd0, layouts[idx].rd0);
- /* G-Channel shading bank0 address setting for CIS */
- sanei_genesys_write_register (dev, 0xd1, layouts[idx].rd1);
- /* B-Channel shading bank0 address setting for CIS */
- sanei_genesys_write_register (dev, 0xd2, layouts[idx].rd2);
-
- /* setup base address for scanned data. */
- /* values must be multiplied by 1024*2=0x0800 to give address on AHB */
- /* R-Channel ODD image buffer 0x0124->0x92000 */
- /* size for each buffer is 0x16d*1k word */
- sanei_genesys_write_register (dev, 0xe0, layouts[idx].re0);
- sanei_genesys_write_register (dev, 0xe1, layouts[idx].re1);
- /* R-Channel ODD image buffer end-address 0x0291->0x148800 => size=0xB6800*/
- sanei_genesys_write_register (dev, 0xe2, layouts[idx].re2);
- sanei_genesys_write_register (dev, 0xe3, layouts[idx].re3);
-
- /* R-Channel EVEN image buffer 0x0292 */
- sanei_genesys_write_register (dev, 0xe4, layouts[idx].re4);
- sanei_genesys_write_register (dev, 0xe5, layouts[idx].re5);
- /* R-Channel EVEN image buffer end-address 0x03ff*/
- sanei_genesys_write_register (dev, 0xe6, layouts[idx].re6);
- sanei_genesys_write_register (dev, 0xe7, layouts[idx].re7);
-
- /* same for green, since CIS, same addresses */
- sanei_genesys_write_register (dev, 0xe8, layouts[idx].re0);
- sanei_genesys_write_register (dev, 0xe9, layouts[idx].re1);
- sanei_genesys_write_register (dev, 0xea, layouts[idx].re2);
- sanei_genesys_write_register (dev, 0xeb, layouts[idx].re3);
- sanei_genesys_write_register (dev, 0xec, layouts[idx].re4);
- sanei_genesys_write_register (dev, 0xed, layouts[idx].re5);
- sanei_genesys_write_register (dev, 0xee, layouts[idx].re6);
- sanei_genesys_write_register (dev, 0xef, layouts[idx].re7);
-
-/* same for blue, since CIS, same addresses */
- sanei_genesys_write_register (dev, 0xf0, layouts[idx].re0);
- sanei_genesys_write_register (dev, 0xf1, layouts[idx].re1);
- sanei_genesys_write_register (dev, 0xf2, layouts[idx].re2);
- sanei_genesys_write_register (dev, 0xf3, layouts[idx].re3);
- sanei_genesys_write_register (dev, 0xf4, layouts[idx].re4);
- sanei_genesys_write_register (dev, 0xf5, layouts[idx].re5);
- sanei_genesys_write_register (dev, 0xf6, layouts[idx].re6);
- sanei_genesys_write_register (dev, 0xf7, layouts[idx].re7);
-
- DBGCOMPLETED;
- return status;
-}
-
-/* *
- * initialize ASIC from power on condition
- */
-static SANE_Status
-gl847_boot (Genesys_Device * dev, SANE_Bool cold)
-{
- SANE_Status status;
- uint8_t val;
-
- DBGSTART;
-
- /* reset ASIC if cold boot */
- if(cold)
- {
- RIE (sanei_genesys_write_register (dev, 0x0e, 0x01));
- RIE (sanei_genesys_write_register (dev, 0x0e, 0x00));
- }
-
- /* test CHKVER */
- RIE (sanei_genesys_read_register (dev, REG40, &val));
- if (val & REG40_CHKVER)
- {
- RIE (sanei_genesys_read_register (dev, 0x00, &val));
- DBG (DBG_info, "%s: reported version for genesys chip is 0x%02x\n", __func__, val);
- }
-
- /* Set default values for registers */
- gl847_init_registers (dev);
-
- /* Write initial registers */
- RIE (dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL847_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 */
- SETREG (0x08, REG08_CIS_LINE);
- RIE (sanei_genesys_write_register (dev, 0x08, dev->reg[reg_0x08].value));
-
- /* set up end access */
- RIE (sanei_genesys_write_0x8c (dev, 0x10, 0x0b));
- RIE (sanei_genesys_write_0x8c (dev, 0x13, 0x0e));
-
- /* setup gpio */
- RIE (gl847_init_gpio (dev));
-
- /* setup internal memory layout */
- RIE (gl847_init_memory_layout (dev));
-
- SETREG (0xf8, 0x01);
- RIE (sanei_genesys_write_register (dev, 0xf8, dev->reg[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 gl847_init (Genesys_Device * dev)
-{
- SANE_Status status;
-
- DBG_INIT ();
- DBGSTART;
-
- status=sanei_genesys_asic_init(dev, GENESYS_GL847_MAX_REGS);
-
- DBGCOMPLETED;
- return status;
-}
-
-static SANE_Status
-gl847_update_hardware_sensors (Genesys_Scanner * s)
-{
- /* do what is needed to get a new set of events, but try to not lose
- any of them.
- */
- SANE_Status status = SANE_STATUS_GOOD;
- uint8_t val;
- uint8_t scan, file, email, copy;
- switch(s->dev->model->gpo_type)
- {
- case GPO_CANONLIDE700:
- scan=0x04;
- file=0x02;
- email=0x01;
- copy=0x08;
- break;
- default:
- scan=0x01;
- file=0x02;
- email=0x04;
- copy=0x08;
- }
- RIE (sanei_genesys_read_register (s->dev, REG6D, &val));
-
- 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
-gl847_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_GL847_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, "gl847_search_strip %s %s\n", black ? "black" : "white",
- forward ? "forward" : "reverse");
-
- gl847_set_fe (dev, AFE_SET);
- status = gl847_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_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, "gl847_search_strip: failed to allocate memory\n");
- return SANE_STATUS_NO_MEM;
- }
- dev->scanhead_position_in_steps = 0;
-
- memcpy (local_reg, dev->reg,
- GENESYS_GL847_MAX_REGS * sizeof (Genesys_Register_Set));
-
- status = gl847_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,
- "gl847_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_GL847_MAX_REGS);
- if (status != SANE_STATUS_GOOD)
- {
- free(data);
- DBG (DBG_error,
- "gl847_search_strip: Failed to bulk write registers: %s\n",
- sane_strstatus (status));
- return status;
- }
-
- status = gl847_begin_scan (dev, local_reg, SANE_TRUE);
- if (status != SANE_STATUS_GOOD)
- {
- free (data);
- DBG (DBG_error,
- "gl847_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,
- "gl847_search_start_position: failed to read data: %s\n",
- sane_strstatus (status));
- return status;
- }
-
- status = gl847_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- free (data);
- DBG (DBG_error, "gl847_search_strip: gl847_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_GL847_MAX_REGS);
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_search_strip: Failed to bulk write registers: %s\n",
- sane_strstatus (status));
- return status;
- }
-
- /* now start scan */
- status = gl847_begin_scan (dev, local_reg, SANE_TRUE);
- if (status != SANE_STATUS_GOOD)
- {
- free (data);
- DBG (DBG_error,
- "gl847_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,
- "gl847_search_start_position: failed to read data: %s\n",
- sane_strstatus (status));
- return status;
- }
-
- status = gl847_stop_action (dev);
- if (status != SANE_STATUS_GOOD)
- {
- free (data);
- DBG (DBG_error, "gl847_search_strip: gl847_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,
- "gl847_search_strip: strip found forward during pass %d at line %d\n",
- pass, y);
- }
- else
- {
- DBG (DBG_data,
- "gl847_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,
- "gl847_search_strip: strip found backward during pass %d \n",
- pass);
- }
- else
- {
- DBG (DBG_data,
- "gl847_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, "gl847_search_strip: %s strip found\n",
- black ? "black" : "white");
- }
- else
- {
- status = SANE_STATUS_UNSUPPORTED;
- DBG (DBG_info, "gl847_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
-gl847_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, &reg04));
- 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, "gl847_offset_calibration: black_pixels=%d\n", black_pixels);
-
- status = gl847_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,
- "gl847_offset_calibration: failed to setup scan: %s\n",
- sane_strstatus (status));
- return status;
- }
- gl847_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 (gl847_set_fe(dev, AFE_SET),first_line, second_line);
- RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL847_MAX_REGS),first_line, second_line);
- DBG (DBG_info, "gl847_offset_calibration: starting first line reading\n");
- RIEF2 (gl847_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, "gl847_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 (gl847_set_fe(dev, AFE_SET),first_line, second_line);
- RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL847_MAX_REGS),first_line, second_line);
- DBG (DBG_info, "gl847_offset_calibration: starting second line reading\n");
- RIEF2 (gl847_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, "gl847_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 (gl847_set_fe(dev, AFE_SET),first_line, second_line);
- RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL847_MAX_REGS),first_line, second_line);
- DBG (DBG_info, "gl847_offset_calibration: starting second line reading\n");
- RIEF2 (gl847_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, "gl847_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, "gl847_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
-gl847_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, "gl847_coarse_gain_calibration: dpi = %d\n", dpi);
-
- /* no gain nor offset for AKM AFE */
- RIE (sanei_genesys_read_register (dev, REG04, &reg04));
- if ((reg04 & REG04_FESET) == 0x02)
- {
- DBGCOMPLETED;
- return status;
- }
-
- /* coarse gain calibration is always done in color mode */
- channels = 3;
-
- /* follow CKSEL */
- if(dev->settings.xres<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 = gl847_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);
- gl847_set_motor_power (dev->calib_reg, SANE_FALSE);
-
- if (status != SANE_STATUS_GOOD)
- {
- DBG (DBG_error,
- "gl847_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_GL847_MAX_REGS));
-
- total_size = pixels * channels * (16/bpp) * lines;
-
- line = malloc (total_size);
- if (!line)
- return SANE_STATUS_NO_MEM;
-
- RIEF (gl847_set_fe(dev, AFE_SET), line);
- RIEF (gl847_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(bpp==16)
- {
- if (dev->model->is_cis)
- val =
- line[i * 2 + j * 2 * pixels + 1] * 256 +
- line[i * 2 + j * 2 * pixels];
- else
- val =
- line[i * 2 * channels + 2 * j + 1] * 256 +
- line[i * 2 * channels + 2 * j];
- }
- else
- {
- if (dev->model->is_cis)
- val = line[i + j * pixels];
- else
- val = line[i * channels + j];
- }
-
- max[j] += val;
- }
- max[j] = max[j] / (pixels/2);
-
- gain[j] = ((float) 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,
- "gl847_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];
- }
-
- if (channels == 1)
- {
- dev->frontend.gain[0] = dev->frontend.gain[1];
- dev->frontend.gain[2] = dev->frontend.gain[1];
- }
-
- free (line);
-
- RIE (gl847_stop_action (dev));
-
- status=gl847_slow_back_home (dev, SANE_TRUE);
-
- DBGCOMPLETED;
- return status;
-}
-
-
-/** the gl847 command set */
-static Genesys_Command_Set gl847_cmd_set = {
- "gl847-generic", /* the name of this set */
-
- gl847_init,
- NULL, /*gl847_init_regs_for_warmup*/
- gl847_init_regs_for_coarse_calibration,
- gl847_init_regs_for_shading,
- gl847_init_regs_for_scan,
-
- gl847_get_filter_bit,
- gl847_get_lineart_bit,
- gl847_get_bitset_bit,
- gl847_get_gain4_bit,
- gl847_get_fast_feed_bit,
- gl847_test_buffer_empty_bit,
- gl847_test_motor_flag_bit,
-
- gl847_bulk_full_size,
-
- gl847_set_fe,
- gl847_set_powersaving,
- gl847_save_power,
-
- gl847_set_motor_power,
- gl847_set_lamp_power,
-
- gl847_begin_scan,
- gl847_end_scan,
-
- sanei_genesys_send_gamma_table,
-
- gl847_search_start_position,
-
- gl847_offset_calibration,
- gl847_coarse_gain_calibration,
- gl847_led_calibration,
-
- gl847_slow_back_home,
- gl847_rewind,
-
- sanei_genesys_bulk_write_register,
- NULL,
- gl847_bulk_read_data,
-
- gl847_update_hardware_sensors,
-
- NULL, /* no known gl847 sheetfed scanner */
- NULL, /* no known gl847 sheetfed scanner */
- NULL, /* no known gl847 sheetfed scanner */
- gl847_search_strip,
-
- sanei_genesys_is_compatible_calibration,
- NULL,
- gl847_send_shading_data,
- gl847_calculate_current_setup,
- gl847_boot,
- NULL
-};
-
-SANE_Status
-sanei_gl847_init_cmd_set (Genesys_Device * dev)
-{
- dev->model->cmd_set = &gl847_cmd_set;
- return SANE_STATUS_GOOD;
-}
-
-/* vim: set sw=2 cino=>2se-1sn-1s{s^-1st0(0u0 smarttab expandtab: */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 18:17:12 +0000