kopia lustrzana https://gitlab.com/sane-project/backends
3712 wiersze
97 KiB
C
3712 wiersze
97 KiB
C
/* sane - Scanner Access Now Easy.
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Copyright (C) 2012-2013 Stéphane Voltz <stef.dev@free.fr>
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, the authors of SANE give permission for
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additional uses of the libraries contained in this release of SANE.
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The exception is that, if you link a SANE library with other files
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to produce an executable, this does not by itself cause the
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resulting executable to be covered by the GNU General Public
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License. Your use of that executable is in no way restricted on
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account of linking the SANE library code into it.
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This exception does not, however, invalidate any other reasons why
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the executable file might be covered by the GNU General Public
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License.
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If you submit changes to SANE to the maintainers to be included in
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a subsequent release, you agree by submitting the changes that
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those changes may be distributed with this exception intact.
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If you write modifications of your own for SANE, it is your choice
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whether to permit this exception to apply to your modifications.
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If you do not wish that, delete this exception notice.
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*/
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/** @file
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*
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* This file handles GL846 and GL845 ASICs since they are really close to each other.
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*/
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#undef BACKEND_NAME
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#define BACKEND_NAME genesys_gl846
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#include "genesys_gl846.h"
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/****************************************************************************
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Low level function
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****************************************************************************/
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/* ------------------------------------------------------------------------ */
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/* Read and write RAM, registers and AFE */
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/* ------------------------------------------------------------------------ */
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/** @brief read scanned data
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* Read in 0xeff0 maximum sized blocks. This read is done in 2
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* parts if not multple of 512. First read is rounded to a multiple of 512 bytes, last read fetches the
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* remainder. Read addr is always 0x10000000 with the memory layout setup.
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* @param dev device to read data from
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* @param addr address within ASIC memory space, unused but kept for API
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* @param data pointer where to store the read data
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* @param len size to read
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*/
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static SANE_Status
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gl846_bulk_read_data (Genesys_Device * dev, uint8_t addr,
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uint8_t * data, size_t len)
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{
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SANE_Status status;
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size_t size, target, read, done;
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uint8_t outdata[8];
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uint8_t *buffer;
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DBG (DBG_io, "gl846_bulk_read_data: requesting %lu bytes at addr=0x%02x\n", (u_long) len, addr);
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if (len == 0)
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return SANE_STATUS_GOOD;
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target = len;
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buffer = data;
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/* loop until computed data size is read */
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while (target)
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{
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if (target > 0xeff0)
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{
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size = 0xeff0;
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}
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else
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{
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size = target;
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}
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/* hard coded 0x10000000 addr */
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outdata[0] = 0;
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outdata[1] = 0;
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outdata[2] = 0;
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outdata[3] = 0x10;
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/* data size to transfer */
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outdata[4] = (size & 0xff);
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outdata[5] = ((size >> 8) & 0xff);
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outdata[6] = ((size >> 16) & 0xff);
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outdata[7] = ((size >> 24) & 0xff);
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status =
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sanei_usb_control_msg (dev->dn, REQUEST_TYPE_OUT, REQUEST_BUFFER,
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VALUE_BUFFER, 0x00, sizeof (outdata),
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outdata);
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if (status != SANE_STATUS_GOOD)
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{
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DBG (DBG_error, "%s failed while writing command: %s\n",
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__func__, sane_strstatus (status));
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return status;
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}
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/* blocks must be multiple of 512 but not last block */
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read = size;
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if (read >= 512)
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{
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read /= 512;
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read *= 512;
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}
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DBG (DBG_io2,
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"gl846_bulk_read_data: trying to read %lu bytes of data\n",
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(u_long) read);
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status = sanei_usb_read_bulk (dev->dn, buffer, &read);
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if (status != SANE_STATUS_GOOD)
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{
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DBG (DBG_error,
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"gl846_bulk_read_data failed while reading bulk data: %s\n",
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sane_strstatus (status));
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return status;
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}
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done=read;
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DBG (DBG_io2, "gl846_bulk_read_data: %lu bytes of data read\n", (u_long) done);
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/* read less than 512 bytes remainder */
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if (read < size)
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{
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read = size - read;
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DBG (DBG_io2,
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"gl846_bulk_read_data: trying to read %lu bytes of data\n",
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(u_long) read);
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status = sanei_usb_read_bulk (dev->dn, buffer+done, &read);
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if (status != SANE_STATUS_GOOD)
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{
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DBG (DBG_error,
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"gl846_bulk_read_data failed while reading bulk data: %s\n",
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sane_strstatus (status));
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return status;
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}
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done=read;
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DBG (DBG_io2, "gl846_bulk_read_data: %lu bytes of data read\n", (u_long) done);
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}
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DBG (DBG_io2, "%s: read %lu bytes, %lu remaining\n", __func__,
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(u_long) size, (u_long) (target - size));
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target -= size;
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buffer += size;
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}
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if (DBG_LEVEL >= DBG_data && dev->binary!=NULL)
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{
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fwrite(data, len, 1, dev->binary);
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}
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DBGCOMPLETED;
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return SANE_STATUS_GOOD;
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}
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/****************************************************************************
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Mid level functions
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****************************************************************************/
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static SANE_Bool
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gl846_get_fast_feed_bit (Genesys_Register_Set * regs)
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{
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Genesys_Register_Set *r = NULL;
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r = sanei_genesys_get_address (regs, REG02);
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if (r && (r->value & REG02_FASTFED))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_get_filter_bit (Genesys_Register_Set * regs)
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{
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Genesys_Register_Set *r = NULL;
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r = sanei_genesys_get_address (regs, REG04);
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if (r && (r->value & REG04_FILTER))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_get_lineart_bit (Genesys_Register_Set * regs)
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{
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Genesys_Register_Set *r = NULL;
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r = sanei_genesys_get_address (regs, REG04);
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if (r && (r->value & REG04_LINEART))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_get_bitset_bit (Genesys_Register_Set * regs)
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{
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Genesys_Register_Set *r = NULL;
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r = sanei_genesys_get_address (regs, REG04);
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if (r && (r->value & REG04_BITSET))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_get_gain4_bit (Genesys_Register_Set * regs)
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{
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Genesys_Register_Set *r = NULL;
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r = sanei_genesys_get_address (regs, 0x06);
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if (r && (r->value & REG06_GAIN4))
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_test_buffer_empty_bit (SANE_Byte val)
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{
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if (val & REG41_BUFEMPTY)
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return SANE_TRUE;
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return SANE_FALSE;
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}
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static SANE_Bool
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gl846_test_motor_flag_bit (SANE_Byte val)
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{
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if (val & REG41_MOTORENB)
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return SANE_TRUE;
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return SANE_FALSE;
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}
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/**
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* compute the step multiplier used
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*/
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static int
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gl846_get_step_multiplier (Genesys_Register_Set * regs)
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{
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Genesys_Register_Set *r = NULL;
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int value = 1;
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r = sanei_genesys_get_address (regs, 0x9d);
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if (r != NULL)
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{
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value = (r->value & 0x0f)>>1;
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value = 1 << value;
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}
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DBG (DBG_io, "%s: step multiplier is %d\n", __func__, value);
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return value;
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}
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/** @brief sensor profile
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* search for the database of motor profiles and get the best one. Each
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* profile is at a specific dpihw. Use LiDE 110 table by default.
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* @param sensor_type sensor id
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* @param dpi hardware dpi for the scan
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* @return a pointer to a Sensor_Profile struct
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*/
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static Sensor_Profile *get_sensor_profile(int sensor_type, int dpi)
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{
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unsigned int i;
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int idx;
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i=0;
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idx=-1;
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while(i<sizeof(sensors)/sizeof(Sensor_Profile))
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{
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/* exact match */
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if(sensors[i].sensor_type==sensor_type && sensors[i].dpi==dpi)
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{
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return &(sensors[i]);
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}
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/* closest match */
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if(sensors[i].sensor_type==sensor_type)
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{
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if(idx<0)
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{
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idx=i;
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}
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else
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{
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if(sensors[i].dpi>=dpi
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&& sensors[i].dpi<sensors[idx].dpi)
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{
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idx=i;
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}
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}
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}
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i++;
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}
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/* default fallback */
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if(idx<0)
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{
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DBG (DBG_warn,"%s: using default sensor profile\n",__func__);
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idx=0;
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}
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return &(sensors[idx]);
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}
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/**@brief compute exposure to use
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* compute the sensor exposure based on target resolution
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*/
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static int gl846_compute_exposure(Genesys_Device *dev, int xres)
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{
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Sensor_Profile *sensor;
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sensor=get_sensor_profile(dev->model->ccd_type, xres);
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return sensor->exposure;
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}
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/** @brief sensor specific settings
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*/
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static void
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gl846_setup_sensor (Genesys_Device * dev, Genesys_Register_Set * regs, int dpi)
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{
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Genesys_Register_Set *r;
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Sensor_Profile *sensor;
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int dpihw, i;
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uint16_t exp;
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DBGSTART;
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dpihw=sanei_genesys_compute_dpihw(dev,dpi);
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for (i = 0x06; i < 0x0e; i++)
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{
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r = sanei_genesys_get_address (regs, 0x10 + i);
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if (r)
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r->value = dev->sensor.regs_0x10_0x1d[i];
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}
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for (i = 0; i < 9; i++)
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{
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r = sanei_genesys_get_address (regs, 0x52 + i);
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if (r)
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r->value = dev->sensor.regs_0x52_0x5e[i];
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}
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/* set EXPDUMMY and CKxMAP */
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dpihw=sanei_genesys_compute_dpihw(dev,dpi);
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sensor=get_sensor_profile(dev->model->ccd_type, dpihw);
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sanei_genesys_set_reg_from_set(regs,REG_EXPDMY,(uint8_t)((sensor->expdummy) & 0xff));
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/* if no calibration has been done, set default values for exposures */
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exp=dev->sensor.regs_0x10_0x1d[0]*256+dev->sensor.regs_0x10_0x1d[1];
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if(exp==0)
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{
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exp=sensor->expr;
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}
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sanei_genesys_set_double(regs,REG_EXPR,exp);
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exp=dev->sensor.regs_0x10_0x1d[2]*256+dev->sensor.regs_0x10_0x1d[3];
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if(exp==0)
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{
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exp=sensor->expg;
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}
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sanei_genesys_set_double(regs,REG_EXPG,exp);
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exp=dev->sensor.regs_0x10_0x1d[4]*256+dev->sensor.regs_0x10_0x1d[5];
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if(exp==0)
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{
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exp=sensor->expb;
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}
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sanei_genesys_set_double(regs,REG_EXPB,exp);
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sanei_genesys_set_triple(regs,REG_CK1MAP,sensor->ck1map);
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sanei_genesys_set_triple(regs,REG_CK3MAP,sensor->ck3map);
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sanei_genesys_set_triple(regs,REG_CK4MAP,sensor->ck4map);
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/* order of the sub-segments */
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dev->order=sensor->order;
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r = sanei_genesys_get_address (regs, 0x17);
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r->value = sensor->r17;
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DBGCOMPLETED;
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}
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/* returns the max register bulk size */
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static int
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gl846_bulk_full_size (void)
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{
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return GENESYS_GL846_MAX_REGS;
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}
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/** @brief set all registers to default values .
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* This function is called only once at the beginning and
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* fills register startup values for registers reused across scans.
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* Those that are rarely modified or not modified are written
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* individually.
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* @param dev device structure holding register set to initialize
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*/
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static void
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gl846_init_registers (Genesys_Device * dev)
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{
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DBGSTART;
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memset (dev->reg, 0,
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GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
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SETREG (0x01,0x60);
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SETREG (0x02,0x38);
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SETREG (0x03,0x03);
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SETREG (0x04,0x22);
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SETREG (0x05,0x60);
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SETREG (0x06,0x10);
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SETREG (0x08,0x60);
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SETREG (0x09,0x00);
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SETREG (0x0a,0x00);
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SETREG (0x0b,0x8b);
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SETREG (0x0c,0x00);
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SETREG (0x0d,0x00);
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SETREG (0x10,0x00);
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SETREG (0x11,0x00);
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SETREG (0x12,0x00);
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SETREG (0x13,0x00);
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SETREG (0x14,0x00);
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SETREG (0x15,0x00);
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SETREG (0x16,0xbb);
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SETREG (0x17,0x13);
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SETREG (0x18,0x10);
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SETREG (0x19,0x2a);
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SETREG (0x1a,0x34);
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SETREG (0x1b,0x00);
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SETREG (0x1c,0x20);
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SETREG (0x1d,0x06);
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SETREG (0x1e,0xf0);
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SETREG (0x1f,0x01);
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SETREG (0x20,0x03);
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SETREG (0x21,0x10);
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SETREG (0x22,0x60);
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SETREG (0x23,0x60);
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SETREG (0x24,0x60);
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SETREG (0x25,0x00);
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SETREG (0x26,0x00);
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SETREG (0x27,0x00);
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SETREG (0x2c,0x00);
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SETREG (0x2d,0x00);
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SETREG (0x2e,0x80);
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SETREG (0x2f,0x80);
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SETREG (0x30,0x00);
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SETREG (0x31,0x00);
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SETREG (0x32,0x00);
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SETREG (0x33,0x00);
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SETREG (0x34,0x1f);
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SETREG (0x35,0x00);
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SETREG (0x36,0x40);
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SETREG (0x37,0x00);
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SETREG (0x38,0x2a);
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SETREG (0x39,0xf8);
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SETREG (0x3d,0x00);
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SETREG (0x3e,0x00);
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SETREG (0x3f,0x01);
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SETREG (0x52,0x02);
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SETREG (0x53,0x04);
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SETREG (0x54,0x06);
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SETREG (0x55,0x08);
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SETREG (0x56,0x0a);
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SETREG (0x57,0x00);
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SETREG (0x58,0x59);
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SETREG (0x59,0x31);
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SETREG (0x5a,0x40);
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SETREG (0x5e,0x1f);
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SETREG (0x5f,0x01);
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SETREG (0x60,0x00);
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SETREG (0x61,0x00);
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SETREG (0x62,0x00);
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SETREG (0x63,0x00);
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SETREG (0x64,0x00);
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SETREG (0x65,0x00);
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SETREG (0x67,0x7f);
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SETREG (0x68,0x7f);
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SETREG (0x69,0x01);
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SETREG (0x6a,0x01);
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SETREG (0x70,0x01);
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SETREG (0x71,0x00);
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SETREG (0x72,0x02);
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SETREG (0x73,0x01);
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SETREG (0x74,0x00);
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SETREG (0x75,0x00);
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SETREG (0x76,0x00);
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SETREG (0x77,0x00);
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SETREG (0x78,0x00);
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SETREG (0x79,0x3f);
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SETREG (0x7a,0x00);
|
|
SETREG (0x7b,0x09);
|
|
SETREG (0x7c,0x99);
|
|
SETREG (0x7d,0x20);
|
|
SETREG (0x7f,0x05);
|
|
SETREG (0x80,0x4f);
|
|
SETREG (0x87,0x02);
|
|
SETREG (0x94,0xff);
|
|
SETREG (0x9d,0x04);
|
|
SETREG (0x9e,0x00);
|
|
SETREG (0xa1,0xe0);
|
|
SETREG (0xa2,0x1f);
|
|
SETREG (0xab,0xc0);
|
|
SETREG (0xbb,0x00);
|
|
SETREG (0xbc,0x0f);
|
|
SETREG (0xdb,0xff);
|
|
SETREG (0xfe,0x08);
|
|
SETREG (0xff,0x02);
|
|
SETREG (0x98,0x20);
|
|
SETREG (0x99,0x00);
|
|
SETREG (0x9a,0x90);
|
|
SETREG (0x9b,0x00);
|
|
SETREG (0xf8,0x05);
|
|
|
|
/* fine tune upon device description */
|
|
dev->reg[reg_0x05].value &= ~REG05_DPIHW;
|
|
switch (dev->sensor.optical_res)
|
|
{
|
|
case 600:
|
|
dev->reg[reg_0x05].value |= REG05_DPIHW_600;
|
|
break;
|
|
case 1200:
|
|
dev->reg[reg_0x05].value |= REG05_DPIHW_1200;
|
|
break;
|
|
case 2400:
|
|
dev->reg[reg_0x05].value |= REG05_DPIHW_2400;
|
|
break;
|
|
case 4800:
|
|
dev->reg[reg_0x05].value |= REG05_DPIHW_4800;
|
|
break;
|
|
}
|
|
|
|
/* initalize calibration reg */
|
|
memcpy (dev->calib_reg, dev->reg,
|
|
GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
|
|
|
|
DBGCOMPLETED;
|
|
}
|
|
|
|
/**@brief send slope table for motor movement
|
|
* Send slope_table in machine byte order
|
|
* @param dev device to send slope table
|
|
* @param table_nr index of the slope table in ASIC memory
|
|
* Must be in the [0-4] range.
|
|
* @param slope_table pointer to 16 bit values array of the slope table
|
|
* @param steps number of elements in the slope table
|
|
*/
|
|
static SANE_Status
|
|
gl846_send_slope_table (Genesys_Device * dev, int table_nr,
|
|
uint16_t * slope_table, int steps)
|
|
{
|
|
SANE_Status status;
|
|
uint8_t *table;
|
|
int i;
|
|
char msg[10000];
|
|
|
|
DBG (DBG_proc, "%s (table_nr = %d, steps = %d)\n", __func__,
|
|
table_nr, steps);
|
|
|
|
/* sanity check */
|
|
if(table_nr<0 || table_nr>4)
|
|
{
|
|
DBG (DBG_error, "%s: invalid table number %d!\n", __func__, table_nr);
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
table = (uint8_t *) malloc (steps * 2);
|
|
for (i = 0; i < steps; i++)
|
|
{
|
|
table[i * 2] = slope_table[i] & 0xff;
|
|
table[i * 2 + 1] = slope_table[i] >> 8;
|
|
}
|
|
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sprintf (msg, "write slope %d (%d)=", table_nr, steps);
|
|
for (i = 0; i < steps; i++)
|
|
{
|
|
sprintf (msg+strlen(msg), "%d", slope_table[i]);
|
|
}
|
|
DBG (DBG_io, "%s: %s\n", __func__, msg);
|
|
}
|
|
|
|
/* slope table addresses are fixed */
|
|
status = sanei_genesys_write_ahb (dev->dn, dev->usb_mode, 0x10000000 + 0x4000 * table_nr, steps * 2, table);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"%s: write to AHB failed writing slope table %d (%s)\n",
|
|
__func__, table_nr, sane_strstatus (status));
|
|
}
|
|
|
|
free (table);
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* Set register values of Analog Device type frontend
|
|
* */
|
|
static SANE_Status
|
|
gl846_set_adi_fe (Genesys_Device * dev, uint8_t set)
|
|
{
|
|
SANE_Status status = SANE_STATUS_GOOD;
|
|
int i;
|
|
uint16_t val;
|
|
uint8_t val8;
|
|
|
|
DBGSTART;
|
|
|
|
/* wait for FE to be ready */
|
|
status = sanei_genesys_get_status (dev, &val8);
|
|
while (val8 & REG41_FEBUSY)
|
|
{
|
|
usleep (10000);
|
|
status = sanei_genesys_get_status (dev, &val8);
|
|
};
|
|
|
|
if (set == AFE_INIT)
|
|
{
|
|
DBG (DBG_proc, "%s(): setting DAC %u\n", __func__, dev->model->dac_type);
|
|
|
|
/* sets to default values */
|
|
sanei_genesys_init_fe (dev);
|
|
}
|
|
|
|
/* write them to analog frontend */
|
|
val = dev->frontend.reg[0];
|
|
status = sanei_genesys_fe_write_data (dev, 0x00, val);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "%s: failed to write reg0: %s\n", __func__,
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
val = dev->frontend.reg[1];
|
|
status = sanei_genesys_fe_write_data (dev, 0x01, val);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "%s: failed to write reg1: %s\n", __func__,
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
for (i = 0; i < 3; i++)
|
|
{
|
|
val = dev->frontend.gain[i];
|
|
status = sanei_genesys_fe_write_data (dev, 0x02 + i, val);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"%s: failed to write gain %d: %s\n", __func__, i,
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
}
|
|
for (i = 0; i < 3; i++)
|
|
{
|
|
val = dev->frontend.offset[i];
|
|
status = sanei_genesys_fe_write_data (dev, 0x05 + i, val);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"%s: failed to write offset %d: %s\n", __func__, i,
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
static SANE_Status
|
|
gl846_homsnr_gpio(Genesys_Device *dev)
|
|
{
|
|
uint8_t val;
|
|
SANE_Status status=SANE_STATUS_GOOD;
|
|
|
|
RIE (sanei_genesys_read_register (dev, REG6C, &val));
|
|
val |= 0x41;
|
|
RIE (sanei_genesys_write_register (dev, REG6C, val));
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Set values of analog frontend */
|
|
static SANE_Status
|
|
gl846_set_fe (Genesys_Device * dev, uint8_t set)
|
|
{
|
|
SANE_Status status;
|
|
|
|
DBG(DBG_proc, "gl846_set_fe (%s)\n",
|
|
set == AFE_INIT ? "init" : set == AFE_SET ? "set" :
|
|
set == AFE_POWER_SAVE ? "powersave" : "huh?");
|
|
|
|
/* route to specific analog frontend setup */
|
|
switch (dev->reg[reg_0x04].value & REG04_FESET)
|
|
{
|
|
case 0x02: /* ADI FE */
|
|
status = gl846_set_adi_fe(dev, set);
|
|
break;
|
|
default:
|
|
DBG(DBG_proc, "gl846_set_fe(): unsupported frontend type %d\n",
|
|
dev->reg[reg_0x04].value & REG04_FESET);
|
|
status = SANE_STATUS_UNSUPPORTED;
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
|
|
/** @brief set up motor related register for scan
|
|
*/
|
|
static SANE_Status
|
|
gl846_init_motor_regs_scan (Genesys_Device * dev,
|
|
Genesys_Register_Set * reg,
|
|
unsigned int scan_exposure_time,
|
|
float scan_yres,
|
|
int scan_step_type,
|
|
unsigned int scan_lines,
|
|
unsigned int scan_dummy,
|
|
unsigned int feed_steps,
|
|
int scan_power_mode,
|
|
unsigned int flags)
|
|
{
|
|
SANE_Status status;
|
|
int use_fast_fed;
|
|
unsigned int fast_dpi;
|
|
uint16_t scan_table[SLOPE_TABLE_SIZE];
|
|
uint16_t fast_table[SLOPE_TABLE_SIZE];
|
|
int scan_steps, fast_steps, factor;
|
|
unsigned int feedl, dist;
|
|
Genesys_Register_Set *r;
|
|
uint32_t z1, z2;
|
|
unsigned int min_restep = 0x20;
|
|
uint8_t val;
|
|
int fast_step_type;
|
|
unsigned int ccdlmt,tgtime;
|
|
|
|
DBGSTART;
|
|
DBG (DBG_proc, "gl846_init_motor_regs_scan : scan_exposure_time=%d, "
|
|
"scan_yres=%g, scan_step_type=%d, scan_lines=%d, scan_dummy=%d, "
|
|
"feed_steps=%d, scan_power_mode=%d, flags=%x\n",
|
|
scan_exposure_time,
|
|
scan_yres,
|
|
scan_step_type,
|
|
scan_lines, scan_dummy, feed_steps, scan_power_mode, flags);
|
|
|
|
/* get step multiplier */
|
|
factor = gl846_get_step_multiplier (reg);
|
|
|
|
use_fast_fed=0;
|
|
/* no fast fed since feed works well */
|
|
if(dev->settings.yres==4444 && feed_steps>100
|
|
&& ((flags & MOTOR_FLAG_FEED)==0))
|
|
{
|
|
use_fast_fed=1;
|
|
}
|
|
DBG (DBG_io, "%s: use_fast_fed=%d\n", __func__, use_fast_fed);
|
|
|
|
sanei_genesys_set_triple(reg, REG_LINCNT, scan_lines);
|
|
DBG (DBG_io, "%s: lincnt=%d\n", __func__, scan_lines);
|
|
|
|
/* compute register 02 value */
|
|
r = sanei_genesys_get_address (reg, REG02);
|
|
r->value = 0x00;
|
|
r->value |= REG02_MTRPWR;
|
|
|
|
if (use_fast_fed)
|
|
r->value |= REG02_FASTFED;
|
|
else
|
|
r->value &= ~REG02_FASTFED;
|
|
|
|
if (flags & MOTOR_FLAG_AUTO_GO_HOME)
|
|
r->value |= REG02_AGOHOME | REG02_NOTHOME;
|
|
|
|
if ((flags & MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE)
|
|
||(scan_yres>=dev->sensor.optical_res))
|
|
{
|
|
r->value |= REG02_ACDCDIS;
|
|
}
|
|
|
|
/* scan and backtracking slope table */
|
|
sanei_genesys_slope_table(scan_table,
|
|
&scan_steps,
|
|
scan_yres,
|
|
scan_exposure_time,
|
|
dev->motor.base_ydpi,
|
|
scan_step_type,
|
|
factor,
|
|
dev->model->motor_type,
|
|
gl846_motors);
|
|
RIE(gl846_send_slope_table (dev, SCAN_TABLE, scan_table, scan_steps*factor));
|
|
RIE(gl846_send_slope_table (dev, BACKTRACK_TABLE, scan_table, scan_steps*factor));
|
|
|
|
/* fast table */
|
|
fast_dpi=sanei_genesys_get_lowest_ydpi(dev);
|
|
fast_step_type=scan_step_type;
|
|
if(scan_step_type>=2)
|
|
{
|
|
fast_step_type=2;
|
|
}
|
|
|
|
sanei_genesys_slope_table(fast_table,
|
|
&fast_steps,
|
|
fast_dpi,
|
|
scan_exposure_time,
|
|
dev->motor.base_ydpi,
|
|
fast_step_type,
|
|
factor,
|
|
dev->model->motor_type,
|
|
gl846_motors);
|
|
|
|
/* manual override of high start value */
|
|
fast_table[0]=fast_table[1];
|
|
|
|
RIE(gl846_send_slope_table (dev, STOP_TABLE, fast_table, fast_steps*factor));
|
|
RIE(gl846_send_slope_table (dev, FAST_TABLE, fast_table, fast_steps*factor));
|
|
RIE(gl846_send_slope_table (dev, HOME_TABLE, fast_table, fast_steps*factor));
|
|
|
|
/* correct move distance by acceleration and deceleration amounts */
|
|
feedl=feed_steps;
|
|
if (use_fast_fed)
|
|
{
|
|
feedl<<=fast_step_type;
|
|
dist=(scan_steps+2*fast_steps)*factor;
|
|
/* TODO read and decode REGAB */
|
|
r = sanei_genesys_get_address (reg, 0x5e);
|
|
dist += (r->value & 31);
|
|
/* FEDCNT */
|
|
r = sanei_genesys_get_address (reg, REG_FEDCNT);
|
|
dist += r->value;
|
|
}
|
|
else
|
|
{
|
|
feedl<<=scan_step_type;
|
|
dist=scan_steps*factor;
|
|
if (flags & MOTOR_FLAG_FEED)
|
|
dist *=2;
|
|
}
|
|
DBG (DBG_io2, "%s: scan steps=%d\n", __func__, scan_steps);
|
|
DBG (DBG_io2, "%s: acceleration distance=%d\n", __func__, dist);
|
|
|
|
/* check for overflow */
|
|
if(dist<feedl)
|
|
feedl -= dist;
|
|
else
|
|
feedl = 0;
|
|
|
|
sanei_genesys_set_triple(reg,REG_FEEDL,feedl);
|
|
DBG (DBG_io ,"%s: feedl=%d\n",__func__,feedl);
|
|
|
|
r = sanei_genesys_get_address (reg, REG0C);
|
|
ccdlmt=(r->value & REG0C_CCDLMT)+1;
|
|
|
|
r = sanei_genesys_get_address (reg, REG1C);
|
|
tgtime=1<<(r->value & REG1C_TGTIME);
|
|
|
|
/* hi res motor speed GPIO */
|
|
/*
|
|
RIE (sanei_genesys_read_register (dev, REG6C, &effective));
|
|
*/
|
|
|
|
/* if quarter step, bipolar Vref2 */
|
|
/* XXX STEF XXX GPIO
|
|
if (scan_step_type > 1)
|
|
{
|
|
if (scan_step_type < 3)
|
|
{
|
|
val = effective & ~REG6C_GPIO13;
|
|
}
|
|
else
|
|
{
|
|
val = effective | REG6C_GPIO13;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
val = effective;
|
|
}
|
|
RIE (sanei_genesys_write_register (dev, REG6C, val));
|
|
*/
|
|
|
|
/* effective scan */
|
|
/*
|
|
RIE (sanei_genesys_read_register (dev, REG6C, &effective));
|
|
val = effective | REG6C_GPIO10;
|
|
RIE (sanei_genesys_write_register (dev, REG6C, val));
|
|
*/
|
|
|
|
if(dev->model->gpo_type==GPO_IMG101)
|
|
{
|
|
if(scan_yres==sanei_genesys_compute_dpihw(dev,scan_yres))
|
|
{
|
|
val=1;
|
|
}
|
|
else
|
|
{
|
|
val=0;
|
|
}
|
|
RIE (sanei_genesys_write_register (dev, REG7E, val));
|
|
}
|
|
|
|
min_restep=scan_steps/2-1;
|
|
if (min_restep < 1)
|
|
min_restep = 1;
|
|
r = sanei_genesys_get_address (reg, REG_FWDSTEP);
|
|
r->value = min_restep;
|
|
r = sanei_genesys_get_address (reg, REG_BWDSTEP);
|
|
r->value = min_restep;
|
|
|
|
sanei_genesys_calculate_zmode2(use_fast_fed,
|
|
scan_exposure_time*ccdlmt*tgtime,
|
|
scan_table,
|
|
scan_steps*factor,
|
|
feedl,
|
|
min_restep*factor,
|
|
&z1,
|
|
&z2);
|
|
|
|
DBG (DBG_info, "gl846_init_motor_regs_scan: z1 = %d\n", z1);
|
|
sanei_genesys_set_triple(reg, REG60, z1 | (scan_step_type << (16+REG60S_STEPSEL)));
|
|
|
|
DBG (DBG_info, "gl846_init_motor_regs_scan: z2 = %d\n", z2);
|
|
sanei_genesys_set_triple(reg, REG63, z2 | (scan_step_type << (16+REG63S_FSTPSEL)));
|
|
|
|
r = sanei_genesys_get_address (reg, 0x1e);
|
|
r->value &= 0xf0; /* 0 dummy lines */
|
|
r->value |= scan_dummy; /* dummy lines */
|
|
|
|
r = sanei_genesys_get_address (reg, REG67);
|
|
r->value = 0x7f;
|
|
|
|
r = sanei_genesys_get_address (reg, REG68);
|
|
r->value = 0x7f;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_STEPNO);
|
|
r->value = scan_steps;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_FASTNO);
|
|
r->value = scan_steps;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_FSHDEC);
|
|
r->value = scan_steps;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_FMOVNO);
|
|
r->value = fast_steps;
|
|
|
|
r = sanei_genesys_get_address (reg, REG_FMOVDEC);
|
|
r->value = fast_steps;
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
|
|
/** @brief set up registers related to sensor
|
|
* Set up the following registers
|
|
0x01
|
|
0x03
|
|
0x10-0x015 R/G/B exposures
|
|
0x19 EXPDMY
|
|
0x2e BWHI
|
|
0x2f BWLO
|
|
0x04
|
|
0x87
|
|
0x05
|
|
0x2c,0x2d DPISET
|
|
0x30,0x31 STRPIXEL
|
|
0x32,0x33 ENDPIXEL
|
|
0x35,0x36,0x37 MAXWD [25:2] (>>2)
|
|
0x38,0x39 LPERIOD
|
|
0x34 DUMMY
|
|
*/
|
|
static SANE_Status
|
|
gl846_init_optical_regs_scan (Genesys_Device * dev,
|
|
Genesys_Register_Set * reg,
|
|
unsigned int exposure_time,
|
|
int used_res,
|
|
unsigned int start,
|
|
unsigned int pixels,
|
|
int channels,
|
|
int depth,
|
|
SANE_Bool half_ccd, int color_filter, int flags)
|
|
{
|
|
unsigned int words_per_line;
|
|
unsigned int startx, endx, used_pixels;
|
|
unsigned int dpiset, dpihw,segnb,cksel,factor;
|
|
unsigned int bytes;
|
|
Genesys_Register_Set *r;
|
|
SANE_Status status;
|
|
Sensor_Profile *sensor;
|
|
|
|
DBG (DBG_proc, "gl846_init_optical_regs_scan : exposure_time=%d, "
|
|
"used_res=%d, start=%d, pixels=%d, channels=%d, depth=%d, "
|
|
"half_ccd=%d, flags=%x\n", exposure_time,
|
|
used_res, start, pixels, channels, depth, half_ccd, flags);
|
|
|
|
/* resolution is divided according to CKSEL */
|
|
r = sanei_genesys_get_address (reg, REG18);
|
|
cksel= (r->value & REG18_CKSEL)+1;
|
|
DBG (DBG_io2, "%s: cksel=%d\n", __func__, cksel);
|
|
|
|
/* to manage high resolution device while keeping good
|
|
* low resolution scanning speed, we make hardware dpi vary */
|
|
dpihw=sanei_genesys_compute_dpihw(dev, used_res * cksel);
|
|
factor=dev->sensor.optical_res/dpihw;
|
|
DBG (DBG_io2, "%s: dpihw=%d (factor=%d)\n", __func__, dpihw, factor);
|
|
|
|
/* sensor parameters */
|
|
sensor=get_sensor_profile(dev->model->ccd_type, dpihw);
|
|
gl846_setup_sensor (dev, reg, dpihw);
|
|
dpiset = used_res * cksel;
|
|
|
|
/* start and end coordinate in optical dpi coordinates */
|
|
startx = start/cksel+dev->sensor.CCD_start_xoffset;
|
|
used_pixels=pixels/cksel;
|
|
|
|
/* end of sensor window */
|
|
endx = startx + used_pixels;
|
|
|
|
/* sensors are built from 600 dpi segments for LiDE 100/200
|
|
* and 1200 dpi for the 700F */
|
|
if (dev->model->flags & GENESYS_FLAG_SIS_SENSOR)
|
|
{
|
|
segnb=dpihw/600;
|
|
}
|
|
else
|
|
{
|
|
segnb=1;
|
|
}
|
|
|
|
/* compute pixel coordinate in the given dpihw space,
|
|
* taking segments into account */
|
|
startx/=factor*segnb;
|
|
endx/=factor*segnb;
|
|
dev->len=endx-startx;
|
|
dev->dist=0;
|
|
dev->skip=0;
|
|
|
|
/* in cas of multi-segments sensor, we have to add the witdh
|
|
* of the sensor crossed by the scan area */
|
|
if (dev->model->flags & GENESYS_FLAG_SIS_SENSOR && segnb>1)
|
|
{
|
|
dev->dist = sensor->segcnt;
|
|
}
|
|
|
|
/* use a segcnt rounded to next even number */
|
|
endx += ((dev->dist+1)&0xfffe)*(segnb-1);
|
|
used_pixels=endx-startx;
|
|
|
|
status = gl846_set_fe (dev, AFE_SET);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_init_optical_regs_scan: failed to set frontend: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* enable shading */
|
|
r = sanei_genesys_get_address (reg, REG01);
|
|
r->value &= ~REG01_SCAN;
|
|
r->value |= REG01_SHDAREA;
|
|
if ((flags & OPTICAL_FLAG_DISABLE_SHADING) ||
|
|
(dev->model->flags & GENESYS_FLAG_NO_CALIBRATION))
|
|
{
|
|
r->value &= ~REG01_DVDSET;
|
|
}
|
|
else
|
|
{
|
|
r->value |= REG01_DVDSET;
|
|
}
|
|
|
|
r = sanei_genesys_get_address (reg, REG03);
|
|
r->value &= ~REG03_AVEENB;
|
|
|
|
if (flags & OPTICAL_FLAG_DISABLE_LAMP)
|
|
r->value &= ~REG03_LAMPPWR;
|
|
else
|
|
r->value |= REG03_LAMPPWR;
|
|
|
|
/* BW threshold */
|
|
r = sanei_genesys_get_address (reg, 0x2e);
|
|
r->value = dev->settings.threshold;
|
|
r = sanei_genesys_get_address (reg, 0x2f);
|
|
r->value = dev->settings.threshold;
|
|
|
|
/* monochrome / color scan */
|
|
r = sanei_genesys_get_address (reg, REG04);
|
|
switch (depth)
|
|
{
|
|
case 1:
|
|
r->value &= ~REG04_BITSET;
|
|
r->value |= REG04_LINEART;
|
|
break;
|
|
case 8:
|
|
r->value &= ~(REG04_LINEART | REG04_BITSET);
|
|
break;
|
|
case 16:
|
|
r->value &= ~REG04_LINEART;
|
|
r->value |= REG04_BITSET;
|
|
break;
|
|
}
|
|
|
|
r->value &= ~(REG04_FILTER | REG04_AFEMOD);
|
|
if (channels == 1)
|
|
{
|
|
switch (color_filter)
|
|
{
|
|
case 0:
|
|
r->value |= 0x24; /* red filter */
|
|
break;
|
|
case 2:
|
|
r->value |= 0x2c; /* blue filter */
|
|
break;
|
|
default:
|
|
r->value |= 0x28; /* green filter */
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
r->value |= 0x20; /* mono */
|
|
|
|
/* register 05 */
|
|
r = sanei_genesys_get_address (reg, REG05);
|
|
|
|
/* set up dpihw */
|
|
r->value &= ~REG05_DPIHW;
|
|
switch(dpihw)
|
|
{
|
|
case 600:
|
|
r->value |= REG05_DPIHW_600;
|
|
break;
|
|
case 1200:
|
|
r->value |= REG05_DPIHW_1200;
|
|
break;
|
|
case 2400:
|
|
r->value |= REG05_DPIHW_2400;
|
|
break;
|
|
case 4800:
|
|
r->value |= REG05_DPIHW_4800;
|
|
break;
|
|
}
|
|
|
|
/* enable gamma tables */
|
|
if (flags & OPTICAL_FLAG_DISABLE_GAMMA)
|
|
r->value &= ~REG05_GMMENB;
|
|
else
|
|
r->value |= REG05_GMMENB;
|
|
|
|
/* CIS scanners can do true gray by setting LEDADD */
|
|
/* we set up LEDADD only when asked */
|
|
if (dev->model->is_cis == SANE_TRUE)
|
|
{
|
|
r = sanei_genesys_get_address (reg, 0x87);
|
|
r->value &= ~REG87_LEDADD;
|
|
if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD))
|
|
{
|
|
r->value |= REG87_LEDADD;
|
|
}
|
|
/* RGB weighting
|
|
r = sanei_genesys_get_address (reg, 0x01);
|
|
r->value &= ~REG01_TRUEGRAY;
|
|
if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD))
|
|
{
|
|
r->value |= REG01_TRUEGRAY;
|
|
}*/
|
|
}
|
|
|
|
/* words(16bit) before gamma, conversion to 8 bit or lineart*/
|
|
words_per_line = (used_pixels * dpiset) / dpihw;
|
|
bytes=depth/8;
|
|
if (depth == 1)
|
|
{
|
|
words_per_line = (words_per_line+7)/8 ;
|
|
dev->len = (dev->len >> 3) + ((dev->len & 7) ? 1 : 0);
|
|
dev->dist = (dev->dist >> 3) + ((dev->dist & 7) ? 1 : 0);
|
|
}
|
|
else
|
|
{
|
|
words_per_line *= bytes;
|
|
dev->dist *= bytes;
|
|
dev->len *= bytes;
|
|
}
|
|
|
|
dev->bpl = words_per_line;
|
|
dev->cur=0;
|
|
dev->segnb=segnb;
|
|
dev->line_interp = 0;
|
|
|
|
sanei_genesys_set_double(reg,REG_DPISET,dpiset);
|
|
DBG (DBG_io2, "%s: dpiset used=%d\n", __func__, dpiset);
|
|
|
|
sanei_genesys_set_double(reg,REG_STRPIXEL,startx);
|
|
sanei_genesys_set_double(reg,REG_ENDPIXEL,endx);
|
|
DBG (DBG_io2, "%s: startx=%d\n", __func__, startx);
|
|
DBG (DBG_io2, "%s: endx =%d\n", __func__, endx);
|
|
|
|
DBG (DBG_io2, "%s: used_pixels=%d\n", __func__, used_pixels);
|
|
DBG (DBG_io2, "%s: pixels =%d\n", __func__, pixels);
|
|
DBG (DBG_io2, "%s: depth =%d\n", __func__, depth);
|
|
DBG (DBG_io2, "%s: dev->bpl =%lu\n", __func__, (unsigned long)dev->bpl);
|
|
DBG (DBG_io2, "%s: dev->len =%lu\n", __func__, (unsigned long)dev->len);
|
|
DBG (DBG_io2, "%s: dev->dist =%lu\n", __func__, (unsigned long)dev->dist);
|
|
DBG (DBG_io2, "%s: dev->segnb =%lu\n", __func__, (unsigned long)dev->segnb);
|
|
|
|
words_per_line *= channels;
|
|
dev->wpl = words_per_line;
|
|
|
|
if(dev->oe_buffer.buffer!=NULL)
|
|
{
|
|
sanei_genesys_buffer_free (&(dev->oe_buffer));
|
|
}
|
|
RIE (sanei_genesys_buffer_alloc (&(dev->oe_buffer), dev->wpl));
|
|
|
|
/* MAXWD is expressed in 4 words unit */
|
|
sanei_genesys_set_triple(reg, REG_MAXWD, (words_per_line >> 2));
|
|
DBG (DBG_io2, "%s: words_per_line used=%d\n", __func__, words_per_line);
|
|
|
|
sanei_genesys_set_double(reg, REG_LPERIOD, exposure_time);
|
|
DBG (DBG_io2, "%s: exposure_time used=%d\n", __func__, exposure_time);
|
|
|
|
r = sanei_genesys_get_address (reg, 0x34);
|
|
r->value = dev->sensor.dummy_pixel;
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* set up registers for an actual scan
|
|
*
|
|
* this function sets up the scanner to scan in normal or single line mode
|
|
*/
|
|
#ifndef UNIT_TESTING
|
|
static
|
|
#endif
|
|
SANE_Status
|
|
gl846_init_scan_regs (Genesys_Device * dev,
|
|
Genesys_Register_Set * reg,
|
|
float xres, /*dpi */
|
|
float yres, /*dpi */
|
|
float startx, /*optical_res, from dummy_pixel+1 */
|
|
float starty, /*base_ydpi, from home! */
|
|
float pixels,
|
|
float lines,
|
|
unsigned int depth,
|
|
unsigned int channels,
|
|
int color_filter,
|
|
unsigned int flags)
|
|
{
|
|
int used_res;
|
|
int start, used_pixels;
|
|
int bytes_per_line;
|
|
int move;
|
|
unsigned int lincnt;
|
|
unsigned int oflags; /**> optical flags */
|
|
unsigned int mflags; /**> motor flags */
|
|
int exposure_time;
|
|
int stagger;
|
|
|
|
int slope_dpi = 0;
|
|
int dummy = 0;
|
|
int scan_step_type = 1;
|
|
int scan_power_mode = 0;
|
|
int max_shift;
|
|
size_t requested_buffer_size, read_buffer_size;
|
|
|
|
SANE_Bool half_ccd; /* false: full CCD res is used, true, half max CCD res is used */
|
|
int optical_res;
|
|
SANE_Status status;
|
|
|
|
DBG (DBG_info,
|
|
"gl846_init_scan_regs settings:\n"
|
|
"Resolution : %gDPI/%gDPI\n"
|
|
"Lines : %g\n"
|
|
"PPL : %g\n"
|
|
"Startpos : %g/%g\n"
|
|
"Depth/Channels: %u/%u\n"
|
|
"Flags : %x\n\n",
|
|
xres, yres, lines, pixels, startx, starty, depth, channels, flags);
|
|
|
|
/* we may have 2 domains for ccd: xres below or above half ccd max dpi */
|
|
if (dev->sensor.optical_res < 2 * xres ||
|
|
!(dev->model->flags & GENESYS_FLAG_HALF_CCD_MODE))
|
|
{
|
|
half_ccd = SANE_FALSE;
|
|
}
|
|
else
|
|
{
|
|
half_ccd = SANE_TRUE;
|
|
}
|
|
|
|
/* optical_res */
|
|
optical_res = dev->sensor.optical_res;
|
|
if (half_ccd)
|
|
optical_res /= 2;
|
|
|
|
/* stagger */
|
|
if ((!half_ccd) && (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE))
|
|
stagger = (4 * yres) / dev->motor.base_ydpi;
|
|
else
|
|
stagger = 0;
|
|
DBG (DBG_info, "gl846_init_scan_regs : stagger=%d lines\n", stagger);
|
|
|
|
/* used_res */
|
|
if (flags & SCAN_FLAG_USE_OPTICAL_RES)
|
|
{
|
|
used_res = optical_res;
|
|
}
|
|
else
|
|
{
|
|
/* resolution is choosen from a list */
|
|
used_res = xres;
|
|
}
|
|
|
|
/* compute scan parameters values */
|
|
/* pixels are allways given at full optical resolution */
|
|
/* use detected left margin and fixed value */
|
|
/* start */
|
|
/* add x coordinates */
|
|
start = startx;
|
|
|
|
if (stagger > 0)
|
|
start |= 1;
|
|
|
|
/* compute correct pixels number */
|
|
/* pixels */
|
|
used_pixels = (pixels * optical_res) / xres;
|
|
|
|
/* round up pixels number if needed */
|
|
if (used_pixels * xres < pixels * optical_res)
|
|
used_pixels++;
|
|
|
|
dummy = 3-channels;
|
|
|
|
/* slope_dpi */
|
|
/* cis color scan is effectively a gray scan with 3 gray lines per color
|
|
line and a FILTER of 0 */
|
|
if (dev->model->is_cis)
|
|
slope_dpi = yres * channels;
|
|
else
|
|
slope_dpi = yres;
|
|
|
|
slope_dpi = slope_dpi * (1 + dummy);
|
|
|
|
exposure_time = gl846_compute_exposure (dev, used_res);
|
|
scan_step_type = sanei_genesys_compute_step_type(gl846_motors, dev->model->motor_type, exposure_time);
|
|
|
|
DBG (DBG_info, "gl846_init_scan_regs : exposure_time=%d pixels\n", exposure_time);
|
|
DBG (DBG_info, "gl846_init_scan_regs : scan_step_type=%d\n", scan_step_type);
|
|
|
|
/*** optical parameters ***/
|
|
/* in case of dynamic lineart, we use an internal 8 bit gray scan
|
|
* to generate 1 lineart data */
|
|
if ((flags & SCAN_FLAG_DYNAMIC_LINEART) && (dev->settings.scan_mode == SCAN_MODE_LINEART))
|
|
{
|
|
depth = 8;
|
|
}
|
|
|
|
/* we enable true gray for cis scanners only, and just when doing
|
|
* scan since color calibration is OK for this mode
|
|
*/
|
|
oflags = 0;
|
|
if(flags & SCAN_FLAG_DISABLE_SHADING)
|
|
oflags |= OPTICAL_FLAG_DISABLE_SHADING;
|
|
if(flags & SCAN_FLAG_DISABLE_GAMMA)
|
|
oflags |= OPTICAL_FLAG_DISABLE_GAMMA;
|
|
if(flags & SCAN_FLAG_DISABLE_LAMP)
|
|
oflags |= OPTICAL_FLAG_DISABLE_LAMP;
|
|
|
|
if (dev->model->is_cis && dev->settings.true_gray)
|
|
{
|
|
oflags |= OPTICAL_FLAG_ENABLE_LEDADD;
|
|
}
|
|
|
|
status = gl846_init_optical_regs_scan (dev,
|
|
reg,
|
|
exposure_time,
|
|
used_res,
|
|
start,
|
|
used_pixels,
|
|
channels,
|
|
depth,
|
|
half_ccd,
|
|
color_filter,
|
|
oflags);
|
|
|
|
if (status != SANE_STATUS_GOOD)
|
|
return status;
|
|
|
|
/*** motor parameters ***/
|
|
|
|
/* max_shift */
|
|
max_shift=sanei_genesys_compute_max_shift(dev,channels,yres,flags);
|
|
|
|
/* lincnt */
|
|
lincnt = lines + max_shift + stagger;
|
|
|
|
/* add tl_y to base movement */
|
|
move = starty;
|
|
DBG (DBG_info, "gl846_init_scan_regs: move=%d steps\n", move);
|
|
|
|
mflags=0;
|
|
if(flags & SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE)
|
|
mflags |= MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE;
|
|
if(flags & SCAN_FLAG_FEEDING)
|
|
mflags |= MOTOR_FLAG_FEED;
|
|
|
|
status = gl846_init_motor_regs_scan (dev,
|
|
reg,
|
|
exposure_time,
|
|
slope_dpi,
|
|
scan_step_type,
|
|
dev->model->is_cis ? lincnt *
|
|
channels : lincnt, dummy, move,
|
|
scan_power_mode,
|
|
mflags);
|
|
|
|
if (status != SANE_STATUS_GOOD)
|
|
return status;
|
|
|
|
|
|
/*** prepares data reordering ***/
|
|
|
|
/* words_per_line */
|
|
bytes_per_line = (used_pixels * used_res) / optical_res;
|
|
bytes_per_line = (bytes_per_line * channels * depth) / 8;
|
|
|
|
requested_buffer_size = 8 * bytes_per_line;
|
|
/* we must use a round number of bytes_per_line */
|
|
/* XXX STEF XXX
|
|
if (requested_buffer_size > BULKIN_MAXSIZE)
|
|
requested_buffer_size =
|
|
(BULKIN_MAXSIZE / bytes_per_line) * bytes_per_line;
|
|
*/
|
|
|
|
read_buffer_size =
|
|
2 * requested_buffer_size +
|
|
((max_shift + stagger) * used_pixels * channels * depth) / 8;
|
|
|
|
RIE (sanei_genesys_buffer_free (&(dev->read_buffer)));
|
|
RIE (sanei_genesys_buffer_alloc (&(dev->read_buffer), read_buffer_size));
|
|
|
|
RIE (sanei_genesys_buffer_free (&(dev->lines_buffer)));
|
|
RIE (sanei_genesys_buffer_alloc (&(dev->lines_buffer), read_buffer_size));
|
|
|
|
RIE (sanei_genesys_buffer_free (&(dev->shrink_buffer)));
|
|
RIE (sanei_genesys_buffer_alloc (&(dev->shrink_buffer),
|
|
requested_buffer_size));
|
|
|
|
RIE (sanei_genesys_buffer_free (&(dev->out_buffer)));
|
|
RIE (sanei_genesys_buffer_alloc (&(dev->out_buffer),
|
|
(8 * dev->settings.pixels * channels *
|
|
depth) / 8));
|
|
|
|
|
|
dev->read_bytes_left = bytes_per_line * lincnt;
|
|
|
|
DBG (DBG_info,
|
|
"gl846_init_scan_regs: physical bytes to read = %lu\n",
|
|
(u_long) dev->read_bytes_left);
|
|
dev->read_active = SANE_TRUE;
|
|
|
|
|
|
dev->current_setup.pixels = (used_pixels * used_res) / optical_res;
|
|
dev->current_setup.lines = lincnt;
|
|
dev->current_setup.depth = depth;
|
|
dev->current_setup.channels = channels;
|
|
dev->current_setup.exposure_time = exposure_time;
|
|
dev->current_setup.xres = used_res;
|
|
dev->current_setup.yres = yres;
|
|
dev->current_setup.half_ccd = half_ccd;
|
|
dev->current_setup.stagger = stagger;
|
|
dev->current_setup.max_shift = max_shift + stagger;
|
|
|
|
/* TODO: should this be done elsewhere? */
|
|
/* scan bytes to send to the frontend */
|
|
/* theory :
|
|
target_size =
|
|
(dev->settings.pixels * dev->settings.lines * channels * depth) / 8;
|
|
but it suffers from integer overflow so we do the following:
|
|
|
|
1 bit color images store color data byte-wise, eg byte 0 contains
|
|
8 bits of red data, byte 1 contains 8 bits of green, byte 2 contains
|
|
8 bits of blue.
|
|
This does not fix the overflow, though.
|
|
644mp*16 = 10gp, leading to an overflow
|
|
-- pierre
|
|
*/
|
|
|
|
dev->total_bytes_read = 0;
|
|
if (depth == 1)
|
|
dev->total_bytes_to_read =
|
|
((dev->settings.pixels * dev->settings.lines) / 8 +
|
|
(((dev->settings.pixels * dev->settings.lines) % 8) ? 1 : 0)) *
|
|
channels;
|
|
else
|
|
dev->total_bytes_to_read =
|
|
dev->settings.pixels * dev->settings.lines * channels * (depth / 8);
|
|
|
|
DBG (DBG_info, "gl846_init_scan_regs: total bytes to send = %lu\n",
|
|
(u_long) dev->total_bytes_to_read);
|
|
/* END TODO */
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
static SANE_Status
|
|
gl846_calculate_current_setup (Genesys_Device * dev)
|
|
{
|
|
int channels;
|
|
int depth;
|
|
int start;
|
|
|
|
float xres; /*dpi */
|
|
float yres; /*dpi */
|
|
float startx; /*optical_res, from dummy_pixel+1 */
|
|
float pixels;
|
|
float lines;
|
|
|
|
int used_res;
|
|
int used_pixels;
|
|
unsigned int lincnt;
|
|
int exposure_time;
|
|
int stagger;
|
|
|
|
int slope_dpi;
|
|
int dummy = 0;
|
|
int max_shift;
|
|
|
|
SANE_Bool half_ccd; /* false: full CCD res is used, true, half max CCD res is used */
|
|
int optical_res;
|
|
|
|
DBG (DBG_info,
|
|
"gl846_calculate_current_setup settings:\n"
|
|
"Resolution: %uDPI\n"
|
|
"Lines : %u\n"
|
|
"PPL : %u\n"
|
|
"Startpos : %.3f/%.3f\n"
|
|
"Scan mode : %d\n\n",
|
|
dev->settings.yres, dev->settings.lines, dev->settings.pixels,
|
|
dev->settings.tl_x, dev->settings.tl_y, dev->settings.scan_mode);
|
|
|
|
/* channels */
|
|
if (dev->settings.scan_mode == 4) /* single pass color */
|
|
channels = 3;
|
|
else
|
|
channels = 1;
|
|
|
|
/* depth */
|
|
depth = dev->settings.depth;
|
|
if (dev->settings.scan_mode == 0)
|
|
depth = 1;
|
|
|
|
/* start */
|
|
start = SANE_UNFIX (dev->model->x_offset);
|
|
start += dev->settings.tl_x;
|
|
start = (start * dev->sensor.optical_res) / MM_PER_INCH;
|
|
|
|
|
|
xres = dev->settings.xres; /*dpi */
|
|
yres = dev->settings.yres; /*dpi */
|
|
startx = start; /*optical_res, from dummy_pixel+1 */
|
|
pixels = dev->settings.pixels;
|
|
lines = dev->settings.lines;
|
|
|
|
DBG (DBG_info,
|
|
"gl846_calculate_current_setup settings:\n"
|
|
"Resolution : %gDPI/%gDPI\n"
|
|
"Lines : %g\n"
|
|
"PPL : %g\n"
|
|
"Startpos : %g\n"
|
|
"Depth/Channels: %u/%u\n\n",
|
|
xres, yres, lines, pixels, startx, depth, channels);
|
|
|
|
/* half_ccd */
|
|
/* we have 2 domains for ccd: xres below or above half ccd max dpi */
|
|
if ((dev->sensor.optical_res < 2 * xres) ||
|
|
!(dev->model->flags & GENESYS_FLAG_HALF_CCD_MODE))
|
|
{
|
|
half_ccd = SANE_FALSE;
|
|
}
|
|
else
|
|
{
|
|
half_ccd = SANE_TRUE;
|
|
}
|
|
|
|
/* optical_res */
|
|
optical_res = dev->sensor.optical_res;
|
|
|
|
/* stagger */
|
|
if (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE)
|
|
stagger = (4 * yres) / dev->motor.base_ydpi;
|
|
else
|
|
stagger = 0;
|
|
DBG (DBG_info, "gl846_calculate_current_setup: stagger=%d lines\n",
|
|
stagger);
|
|
|
|
/* resolution is choosen from a fixed list */
|
|
used_res = xres;
|
|
|
|
/* compute scan parameters values */
|
|
/* pixels are allways given at half or full CCD optical resolution */
|
|
/* use detected left margin and fixed value */
|
|
|
|
/* compute correct pixels number */
|
|
used_pixels = (pixels * optical_res) / used_res;
|
|
dummy = 3-channels;
|
|
|
|
/* slope_dpi */
|
|
/* cis color scan is effectively a gray scan with 3 gray lines per color
|
|
line and a FILTER of 0 */
|
|
if (dev->model->is_cis)
|
|
slope_dpi = yres * channels;
|
|
else
|
|
slope_dpi = yres;
|
|
|
|
slope_dpi = slope_dpi * (1 + dummy);
|
|
|
|
exposure_time = gl846_compute_exposure (dev, used_res);
|
|
DBG (DBG_info, "%s : exposure_time=%d pixels\n", __func__, exposure_time);
|
|
|
|
/* max_shift */
|
|
max_shift=sanei_genesys_compute_max_shift(dev,channels,yres,0);
|
|
|
|
/* lincnt */
|
|
lincnt = lines + max_shift + stagger;
|
|
|
|
dev->current_setup.pixels = (used_pixels * used_res) / optical_res;
|
|
dev->current_setup.lines = lincnt;
|
|
dev->current_setup.depth = depth;
|
|
dev->current_setup.channels = channels;
|
|
dev->current_setup.exposure_time = exposure_time;
|
|
dev->current_setup.xres = used_res;
|
|
dev->current_setup.yres = yres;
|
|
dev->current_setup.half_ccd = half_ccd;
|
|
dev->current_setup.stagger = stagger;
|
|
dev->current_setup.max_shift = max_shift + stagger;
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
static void
|
|
gl846_set_motor_power (Genesys_Register_Set * regs, SANE_Bool set)
|
|
{
|
|
|
|
DBG (DBG_proc, "gl846_set_motor_power\n");
|
|
|
|
if (set)
|
|
{
|
|
sanei_genesys_set_reg_from_set (regs, REG02,
|
|
sanei_genesys_read_reg_from_set (regs,
|
|
REG02)
|
|
| REG02_MTRPWR);
|
|
}
|
|
else
|
|
{
|
|
sanei_genesys_set_reg_from_set (regs, REG02,
|
|
sanei_genesys_read_reg_from_set (regs,
|
|
REG02)
|
|
& ~REG02_MTRPWR);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gl846_set_lamp_power (Genesys_Device __sane_unused__ * dev,
|
|
Genesys_Register_Set * regs, SANE_Bool set)
|
|
{
|
|
if (set)
|
|
{
|
|
sanei_genesys_set_reg_from_set (regs, REG03,
|
|
sanei_genesys_read_reg_from_set (regs, REG03)
|
|
| REG03_LAMPPWR);
|
|
}
|
|
else
|
|
{
|
|
sanei_genesys_set_reg_from_set (regs, REG03,
|
|
sanei_genesys_read_reg_from_set (regs, REG03)
|
|
& ~REG03_LAMPPWR);
|
|
}
|
|
}
|
|
|
|
/*for fast power saving methods only, like disabling certain amplifiers*/
|
|
static SANE_Status
|
|
gl846_save_power (Genesys_Device * dev, SANE_Bool enable)
|
|
{
|
|
DBG (DBG_proc, "gl846_save_power: enable = %d\n", enable);
|
|
if (dev == NULL)
|
|
return SANE_STATUS_INVAL;
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
static SANE_Status
|
|
gl846_set_powersaving (Genesys_Device * dev, int delay /* in minutes */ )
|
|
{
|
|
DBG (DBG_proc, "gl846_set_powersaving (delay = %d)\n", delay);
|
|
if (dev == NULL)
|
|
return SANE_STATUS_INVAL;
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
static SANE_Status
|
|
gl846_start_action (Genesys_Device * dev)
|
|
{
|
|
return sanei_genesys_write_register (dev, 0x0f, 0x01);
|
|
}
|
|
|
|
#ifndef UNIT_TESTING
|
|
static
|
|
#endif
|
|
SANE_Status
|
|
gl846_stop_action (Genesys_Device * dev)
|
|
{
|
|
SANE_Status status;
|
|
uint8_t val40, val;
|
|
unsigned int loop;
|
|
|
|
DBGSTART;
|
|
|
|
/* post scan gpio : without that HOMSNR is unreliable */
|
|
gl846_homsnr_gpio(dev);
|
|
status = sanei_genesys_get_status (dev, &val);
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sanei_genesys_print_status (val);
|
|
}
|
|
|
|
status = sanei_genesys_read_register (dev, REG40, &val40);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"%s: failed to read home sensor: %s\n", __func__,
|
|
sane_strstatus (status));
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/* only stop action if needed */
|
|
if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG))
|
|
{
|
|
DBG (DBG_info, "%s: already stopped\n", __func__);
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* ends scan */
|
|
val = sanei_genesys_read_reg_from_set (dev->reg, REG01);
|
|
val &= ~REG01_SCAN;
|
|
sanei_genesys_set_reg_from_set (dev->reg, REG01, val);
|
|
status = sanei_genesys_write_register (dev, REG01, val);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"%s: failed to write register 01: %s\n", __func__,
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
usleep (100 * 1000);
|
|
|
|
loop = 10;
|
|
while (loop > 0)
|
|
{
|
|
status = sanei_genesys_get_status (dev, &val);
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sanei_genesys_print_status (val);
|
|
}
|
|
status = sanei_genesys_read_register (dev, REG40, &val40);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"%s: failed to read home sensor: %s\n", __func__,
|
|
sane_strstatus (status));
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/* if scanner is in command mode, we are done */
|
|
if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG)
|
|
&& !(val & REG41_MOTORENB))
|
|
{
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
usleep (100 * 1000);
|
|
loop--;
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_IO_ERROR;
|
|
}
|
|
|
|
/* Send the low-level scan command */
|
|
#ifndef UNIT_TESTING
|
|
static
|
|
#endif
|
|
SANE_Status
|
|
gl846_begin_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
|
|
SANE_Bool start_motor)
|
|
{
|
|
SANE_Status status;
|
|
uint8_t val;
|
|
Genesys_Register_Set *r;
|
|
|
|
DBGSTART;
|
|
|
|
/* XXX STEF XXX SCAN GPIO */
|
|
/*
|
|
RIE (sanei_genesys_read_register (dev, REG6C, &val));
|
|
RIE (sanei_genesys_write_register (dev, REG6C, val));
|
|
*/
|
|
|
|
val = REG0D_CLRLNCNT;
|
|
RIE (sanei_genesys_write_register (dev, REG0D, val));
|
|
val = REG0D_CLRMCNT;
|
|
RIE (sanei_genesys_write_register (dev, REG0D, val));
|
|
|
|
RIE (sanei_genesys_read_register (dev, REG01, &val));
|
|
val |= REG01_SCAN;
|
|
RIE (sanei_genesys_write_register (dev, REG01, val));
|
|
r = sanei_genesys_get_address (reg, REG01);
|
|
r->value = val;
|
|
|
|
if (start_motor)
|
|
{
|
|
RIE (sanei_genesys_write_register (dev, REG0F, 1));
|
|
}
|
|
else
|
|
{
|
|
RIE (sanei_genesys_write_register (dev, REG0F, 0));
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
/* Send the stop scan command */
|
|
#ifndef UNIT_TESTING
|
|
static
|
|
#endif
|
|
SANE_Status
|
|
gl846_end_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
|
|
SANE_Bool check_stop)
|
|
{
|
|
SANE_Status status;
|
|
|
|
DBG (DBG_proc, "gl846_end_scan (check_stop = %d)\n", check_stop);
|
|
if (reg == NULL)
|
|
return SANE_STATUS_INVAL;
|
|
|
|
if (dev->model->is_sheetfed == SANE_TRUE)
|
|
{
|
|
status = SANE_STATUS_GOOD;
|
|
}
|
|
else /* flat bed scanners */
|
|
{
|
|
status = gl846_stop_action (dev);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_end_scan: failed to stop: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/* Moves the slider to the home (top) postion slowly */
|
|
#ifndef UNIT_TESTING
|
|
static
|
|
#endif
|
|
SANE_Status
|
|
gl846_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home)
|
|
{
|
|
Genesys_Register_Set local_reg[GENESYS_GL846_MAX_REGS];
|
|
SANE_Status status;
|
|
Genesys_Register_Set *r;
|
|
float resolution;
|
|
uint8_t val;
|
|
int loop = 0;
|
|
int scan_mode;
|
|
|
|
DBG (DBG_proc, "gl846_slow_back_home (wait_until_home = %d)\n",
|
|
wait_until_home);
|
|
|
|
if(dev->usb_mode<0)
|
|
{
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* post scan gpio : without that HOMSNR is unreliable */
|
|
gl846_homsnr_gpio(dev);
|
|
|
|
/* first read gives HOME_SENSOR true */
|
|
status = sanei_genesys_get_status (dev, &val);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_slow_back_home: failed to read home sensor: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sanei_genesys_print_status (val);
|
|
}
|
|
usleep (100000); /* sleep 100 ms */
|
|
|
|
/* second is reliable */
|
|
status = sanei_genesys_get_status (dev, &val);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_slow_back_home: failed to read home sensor: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
if (DBG_LEVEL >= DBG_io)
|
|
{
|
|
sanei_genesys_print_status (val);
|
|
}
|
|
|
|
/* is sensor at home? */
|
|
if (val & HOMESNR)
|
|
{
|
|
DBG (DBG_info, "%s: already at home, completed\n", __func__);
|
|
dev->scanhead_position_in_steps = 0;
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
memcpy (local_reg, dev->reg, GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
|
|
|
|
resolution=sanei_genesys_get_lowest_ydpi(dev);
|
|
|
|
/* TODO add scan_mode to the API */
|
|
scan_mode= dev->settings.scan_mode;
|
|
dev->settings.scan_mode=SCAN_MODE_LINEART;
|
|
status = gl846_init_scan_regs (dev,
|
|
local_reg,
|
|
resolution,
|
|
resolution,
|
|
100,
|
|
30000,
|
|
100,
|
|
100,
|
|
8,
|
|
1,
|
|
0,
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_slow_back_home: failed to set up registers: %s\n",
|
|
sane_strstatus (status));
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
dev->settings.scan_mode=scan_mode;
|
|
|
|
/* clear scan and feed count */
|
|
RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT));
|
|
|
|
/* set up for reverse */
|
|
r = sanei_genesys_get_address (local_reg, REG02);
|
|
r->value |= REG02_MTRREV;
|
|
|
|
RIE (dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL846_MAX_REGS));
|
|
|
|
status = gl846_start_action (dev);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_slow_back_home: failed to start motor: %s\n",
|
|
sane_strstatus (status));
|
|
gl846_stop_action (dev);
|
|
/* send original registers */
|
|
dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL846_MAX_REGS);
|
|
return status;
|
|
}
|
|
|
|
/* post scan gpio : without that HOMSNR is unreliable */
|
|
gl846_homsnr_gpio(dev);
|
|
|
|
if (wait_until_home)
|
|
{
|
|
while (loop < 300) /* do not wait longer then 30 seconds */
|
|
{
|
|
status = sanei_genesys_get_status (dev, &val);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_slow_back_home: failed to read home sensor: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
if (val & HOMESNR) /* home sensor */
|
|
{
|
|
DBG (DBG_info, "gl846_slow_back_home: reached home position\n");
|
|
gl846_stop_action (dev);
|
|
dev->scanhead_position_in_steps = 0;
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
usleep (100000); /* sleep 100 ms */
|
|
++loop;
|
|
}
|
|
|
|
/* when we come here then the scanner needed too much time for this, so we better stop the motor */
|
|
gl846_stop_action (dev);
|
|
DBG (DBG_error,
|
|
"gl846_slow_back_home: timeout while waiting for scanhead to go home\n");
|
|
return SANE_STATUS_IO_ERROR;
|
|
}
|
|
|
|
DBG (DBG_info, "gl846_slow_back_home: scanhead is still moving\n");
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* Automatically set top-left edge of the scan area by scanning a 200x200 pixels
|
|
area at 600 dpi from very top of scanner */
|
|
static SANE_Status
|
|
gl846_search_start_position (Genesys_Device * dev)
|
|
{
|
|
int size;
|
|
SANE_Status status;
|
|
uint8_t *data;
|
|
Genesys_Register_Set local_reg[GENESYS_GL846_MAX_REGS];
|
|
int steps;
|
|
|
|
int pixels = 600;
|
|
int dpi = 300;
|
|
|
|
DBG (DBG_proc, "gl846_search_start_position\n");
|
|
|
|
memcpy (local_reg, dev->reg,
|
|
GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
|
|
|
|
/* sets for a 200 lines * 600 pixels */
|
|
/* normal scan with no shading */
|
|
|
|
status = gl846_init_scan_regs (dev, local_reg, dpi, dpi, 0, 0, /*we should give a small offset here~60 steps */
|
|
600, dev->model->search_lines, 8, 1, 1, /*green */
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to set up registers: %s\n",
|
|
sane_strstatus (status));
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/* send to scanner */
|
|
status = dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL846_MAX_REGS);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to bulk write registers: %s\n",
|
|
sane_strstatus (status));
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
size = pixels * dev->model->search_lines;
|
|
|
|
data = malloc (size);
|
|
if (!data)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to allocate memory\n");
|
|
return SANE_STATUS_NO_MEM;
|
|
}
|
|
|
|
status = gl846_begin_scan (dev, local_reg, SANE_TRUE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to begin scan: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* waits for valid data */
|
|
do
|
|
sanei_genesys_test_buffer_empty (dev, &steps);
|
|
while (steps);
|
|
|
|
/* now we're on target, we can read data */
|
|
status = sanei_genesys_read_data_from_scanner (dev, data, size);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to read data: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
sanei_genesys_write_pnm_file ("search_position.pnm", data, 8, 1, pixels,
|
|
dev->model->search_lines);
|
|
|
|
status = gl846_end_scan (dev, local_reg, SANE_TRUE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to end scan: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* update regs to copy ASIC internal state */
|
|
memcpy (dev->reg, local_reg,
|
|
GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
|
|
|
|
/*TODO: find out where sanei_genesys_search_reference_point
|
|
stores information, and use that correctly*/
|
|
status =
|
|
sanei_genesys_search_reference_point (dev, data, 0, dpi, pixels,
|
|
dev->model->search_lines);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to set search reference point: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
free (data);
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/*
|
|
* sets up register for coarse gain calibration
|
|
* todo: check it for scanners using it */
|
|
static SANE_Status
|
|
gl846_init_regs_for_coarse_calibration (Genesys_Device * dev)
|
|
{
|
|
SANE_Status status;
|
|
uint8_t channels;
|
|
uint8_t cksel;
|
|
|
|
DBG (DBG_proc, "gl846_init_regs_for_coarse_calibration\n");
|
|
|
|
|
|
cksel = (dev->calib_reg[reg_0x18].value & REG18_CKSEL) + 1; /* clock speed = 1..4 clocks */
|
|
|
|
/* set line size */
|
|
if (dev->settings.scan_mode == SCAN_MODE_COLOR) /* single pass color */
|
|
channels = 3;
|
|
else
|
|
channels = 1;
|
|
|
|
status = gl846_init_scan_regs (dev,
|
|
dev->calib_reg,
|
|
dev->settings.xres,
|
|
dev->settings.yres,
|
|
0,
|
|
0,
|
|
dev->sensor.optical_res / cksel,
|
|
20,
|
|
16,
|
|
channels,
|
|
dev->settings.color_filter,
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_SINGLE_LINE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_init_register_for_coarse_calibration: Failed to setup scan: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
DBG (DBG_info,
|
|
"gl846_init_register_for_coarse_calibration: optical sensor res: %d dpi, actual res: %d\n",
|
|
dev->sensor.optical_res / cksel, dev->settings.xres);
|
|
|
|
status = dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_init_register_for_coarse_calibration: Failed to bulk write registers: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/** @brief moves the slider to steps at motor base dpi
|
|
* @param dev device to work on
|
|
* @param steps number of steps to move in base_dpi line count
|
|
* */
|
|
#ifndef UNIT_TESTING
|
|
static
|
|
#endif
|
|
SANE_Status
|
|
gl846_feed (Genesys_Device * dev, unsigned int steps)
|
|
{
|
|
Genesys_Register_Set local_reg[GENESYS_GL846_MAX_REGS];
|
|
SANE_Status status;
|
|
Genesys_Register_Set *r;
|
|
float resolution;
|
|
uint8_t val;
|
|
|
|
DBGSTART;
|
|
DBG (DBG_io, "%s: steps=%d\n", __func__, steps);
|
|
|
|
/* prepare local registers */
|
|
memcpy (local_reg, dev->reg, GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
|
|
|
|
resolution=sanei_genesys_get_lowest_ydpi(dev);
|
|
status = gl846_init_scan_regs (dev,
|
|
local_reg,
|
|
resolution,
|
|
resolution,
|
|
0,
|
|
steps,
|
|
100,
|
|
3,
|
|
8,
|
|
3,
|
|
dev->settings.color_filter,
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_FEEDING |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_feed: failed to set up registers: %s\n",
|
|
sane_strstatus (status));
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/* set exposure to zero */
|
|
sanei_genesys_set_triple(local_reg,REG_EXPR,0);
|
|
sanei_genesys_set_triple(local_reg,REG_EXPG,0);
|
|
sanei_genesys_set_triple(local_reg,REG_EXPB,0);
|
|
|
|
/* clear scan and feed count */
|
|
RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT));
|
|
RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRMCNT));
|
|
|
|
/* set up for no scan */
|
|
r = sanei_genesys_get_address (local_reg, REG01);
|
|
r->value &= ~REG01_SCAN;
|
|
|
|
/* send registers */
|
|
RIE (dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL846_MAX_REGS));
|
|
|
|
status = gl846_start_action (dev);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus (status));
|
|
gl846_stop_action (dev);
|
|
|
|
/* restore original registers */
|
|
dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL846_MAX_REGS);
|
|
return status;
|
|
}
|
|
|
|
/* wait until feed count reaches the required value, but do not
|
|
* exceed 30s */
|
|
do
|
|
{
|
|
status = sanei_genesys_get_status (dev, &val);
|
|
}
|
|
while (status == SANE_STATUS_GOOD && !(val & FEEDFSH));
|
|
|
|
/* then stop scanning */
|
|
RIE(gl846_stop_action (dev));
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
|
|
/* init registers for shading calibration */
|
|
static SANE_Status
|
|
gl846_init_regs_for_shading (Genesys_Device * dev)
|
|
{
|
|
SANE_Status status;
|
|
float move;
|
|
|
|
DBGSTART;
|
|
dev->calib_channels = 3;
|
|
|
|
/* initial calibration reg values */
|
|
memcpy (dev->calib_reg, dev->reg, GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
|
|
|
|
dev->calib_resolution = sanei_genesys_compute_dpihw(dev,dev->settings.xres);
|
|
dev->calib_lines = dev->model->shading_lines;
|
|
if(dev->calib_resolution==4800)
|
|
dev->calib_lines *= 2;
|
|
dev->calib_pixels = (dev->sensor.sensor_pixels*dev->calib_resolution)/dev->sensor.optical_res;
|
|
DBG (DBG_io, "%s: calib_lines = %d\n", __func__, (unsigned int)dev->calib_lines);
|
|
DBG (DBG_io, "%s: calib_pixels = %d\n", __func__, (unsigned int)dev->calib_pixels);
|
|
|
|
/* this is aworkaround insufficent distance for slope
|
|
* motor acceleration TODO special motor slope for shading */
|
|
move=1;
|
|
if(dev->calib_resolution<1200)
|
|
{
|
|
move=40;
|
|
}
|
|
|
|
status = gl846_init_scan_regs (dev,
|
|
dev->calib_reg,
|
|
dev->calib_resolution,
|
|
dev->calib_resolution,
|
|
0,
|
|
move,
|
|
dev->calib_pixels,
|
|
dev->calib_lines,
|
|
16,
|
|
dev->calib_channels,
|
|
dev->settings.color_filter,
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE);
|
|
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
status = dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* we use GENESYS_FLAG_SHADING_REPARK */
|
|
dev->scanhead_position_in_steps = 0;
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/** @brief set up registers for the actual scan
|
|
*/
|
|
static SANE_Status
|
|
gl846_init_regs_for_scan (Genesys_Device * dev)
|
|
{
|
|
int channels;
|
|
int flags;
|
|
int depth;
|
|
float move;
|
|
int move_dpi;
|
|
float start;
|
|
|
|
SANE_Status status;
|
|
|
|
DBG (DBG_info,
|
|
"gl846_init_regs_for_scan settings:\nResolution: %uDPI\n"
|
|
"Lines : %u\nPPL : %u\nStartpos : %.3f/%.3f\nScan mode : %d\n\n",
|
|
dev->settings.yres, dev->settings.lines, dev->settings.pixels,
|
|
dev->settings.tl_x, dev->settings.tl_y, dev->settings.scan_mode);
|
|
|
|
/* channels */
|
|
if (dev->settings.scan_mode == SCAN_MODE_COLOR) /* single pass color */
|
|
channels = 3;
|
|
else
|
|
channels = 1;
|
|
|
|
/* depth */
|
|
depth = dev->settings.depth;
|
|
if (dev->settings.scan_mode == SCAN_MODE_LINEART)
|
|
depth = 1;
|
|
|
|
|
|
/* steps to move to reach scanning area:
|
|
- first we move to physical start of scanning
|
|
either by a fixed steps amount from the black strip
|
|
or by a fixed amount from parking position,
|
|
minus the steps done during shading calibration
|
|
- then we move by the needed offset whitin physical
|
|
scanning area
|
|
|
|
assumption: steps are expressed at maximum motor resolution
|
|
|
|
we need:
|
|
SANE_Fixed y_offset;
|
|
SANE_Fixed y_size;
|
|
SANE_Fixed y_offset_calib;
|
|
mm_to_steps()=motor dpi / 2.54 / 10=motor dpi / MM_PER_INCH */
|
|
|
|
/* if scanner uses GENESYS_FLAG_SEARCH_START y_offset is
|
|
relative from origin, else, it is from parking position */
|
|
|
|
move_dpi = dev->motor.base_ydpi;
|
|
|
|
move = SANE_UNFIX (dev->model->y_offset);
|
|
move += dev->settings.tl_y;
|
|
move = (move * move_dpi) / MM_PER_INCH;
|
|
move -= dev->scanhead_position_in_steps;
|
|
DBG (DBG_info, "%s: move=%f steps\n",__func__, move);
|
|
|
|
/* fast move to scan area */
|
|
/* we don't move fast the whole distance since it would involve
|
|
* computing acceleration/deceleration distance for scan
|
|
* resolution. So leave a remainder for it so scan makes the final
|
|
* move tuning */
|
|
if(channels*dev->settings.yres>=600 && move>700)
|
|
{
|
|
status = gl846_feed (dev, move-500);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "%s: failed to move to scan area\n",__func__);
|
|
return status;
|
|
}
|
|
move=500;
|
|
}
|
|
|
|
DBG (DBG_info, "gl846_init_regs_for_scan: move=%f steps\n", move);
|
|
DBG (DBG_info, "%s: move=%f steps\n", __func__, move);
|
|
|
|
/* start */
|
|
start = SANE_UNFIX (dev->model->x_offset);
|
|
start += dev->settings.tl_x;
|
|
start = (start * dev->sensor.optical_res) / MM_PER_INCH;
|
|
|
|
flags = 0;
|
|
|
|
/* emulated lineart from gray data is required for now */
|
|
if(dev->settings.scan_mode == SCAN_MODE_LINEART
|
|
&& dev->settings.dynamic_lineart)
|
|
{
|
|
flags |= SCAN_FLAG_DYNAMIC_LINEART;
|
|
}
|
|
|
|
/* backtracking isn't handled well, so don't enable it */
|
|
flags |= SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE;
|
|
|
|
status = gl846_init_scan_regs (dev,
|
|
dev->reg,
|
|
dev->settings.xres,
|
|
dev->settings.yres,
|
|
start,
|
|
move,
|
|
dev->settings.pixels,
|
|
dev->settings.lines,
|
|
depth,
|
|
channels,
|
|
dev->settings.color_filter,
|
|
flags);
|
|
|
|
if (status != SANE_STATUS_GOOD)
|
|
return status;
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
|
|
/**
|
|
* Send shading calibration data. The buffer is considered to always hold values
|
|
* for all the channels.
|
|
*/
|
|
static SANE_Status
|
|
gl846_send_shading_data (Genesys_Device * dev, uint8_t * data, int size)
|
|
{
|
|
SANE_Status status = SANE_STATUS_GOOD;
|
|
uint32_t addr, length, i, x, factor, pixels;
|
|
uint32_t dpiset, dpihw, strpixel, endpixel;
|
|
uint16_t tempo;
|
|
uint32_t lines, channels;
|
|
uint8_t val,*buffer,*ptr,*src;
|
|
|
|
DBGSTART;
|
|
DBG( DBG_io2, "%s: writing %d bytes of shading data\n",__func__,size);
|
|
|
|
/* shading data is plit in 3 (up to 5 with IR) areas
|
|
write(0x10014000,0x00000dd8)
|
|
URB 23429 bulk_out len 3544 wrote 0x33 0x10 0x....
|
|
write(0x1003e000,0x00000dd8)
|
|
write(0x10068000,0x00000dd8)
|
|
*/
|
|
length = (uint32_t) (size / 3);
|
|
sanei_genesys_get_double(dev->reg,REG_STRPIXEL,&tempo);
|
|
strpixel=tempo;
|
|
sanei_genesys_get_double(dev->reg,REG_ENDPIXEL,&tempo);
|
|
endpixel=tempo;
|
|
|
|
/* compute deletion factor */
|
|
sanei_genesys_get_double(dev->reg,REG_DPISET,&tempo);
|
|
dpiset=tempo;
|
|
DBG( DBG_io2, "%s: STRPIXEL=%d, ENDPIXEL=%d, PIXELS=%d, DPISET=%d\n",__func__,strpixel,endpixel,endpixel-strpixel,dpiset);
|
|
dpihw=sanei_genesys_compute_dpihw(dev,dpiset);
|
|
factor=dpihw/dpiset;
|
|
DBG( DBG_io2, "%s: factor=%d\n",__func__,factor);
|
|
|
|
if(DBG_LEVEL>=DBG_data)
|
|
{
|
|
dev->binary=fopen("binary.pnm","wb");
|
|
sanei_genesys_get_triple(dev->reg, REG_LINCNT, &lines);
|
|
channels=dev->current_setup.channels;
|
|
if(dev->binary!=NULL)
|
|
{
|
|
fprintf(dev->binary,"P5\n%d %d\n%d\n",(endpixel-strpixel)/factor*channels,lines/channels,255);
|
|
}
|
|
}
|
|
|
|
pixels=endpixel-strpixel;
|
|
|
|
/* since we're using SHDAREA, substract startx coordinate from shading */
|
|
strpixel-=((dev->sensor.CCD_start_xoffset*600)/dev->sensor.optical_res);
|
|
|
|
/* turn pixel value into bytes 2x16 bits words */
|
|
strpixel*=2*2;
|
|
pixels*=2*2;
|
|
|
|
/* allocate temporary buffer */
|
|
buffer=(uint8_t *)malloc(pixels);
|
|
memset(buffer,0,pixels);
|
|
DBG( DBG_io2, "%s: using chunks of %d (0x%04x) bytes\n",__func__,pixels,pixels);
|
|
|
|
/* base addr of data has been written in reg D0-D4 in 4K word, so AHB address
|
|
* is 8192*reg value */
|
|
|
|
/* write actual color channel data */
|
|
for(i=0;i<3;i++)
|
|
{
|
|
/* build up actual shading data by copying the part from the full width one
|
|
* to the one corresponding to SHDAREA */
|
|
ptr=buffer;
|
|
|
|
/* iterate on both sensor segment */
|
|
for(x=0;x<pixels;x+=4*factor)
|
|
{
|
|
/* coefficient source */
|
|
src=(data+strpixel+i*length)+x;
|
|
|
|
/* coefficient copy */
|
|
ptr[0]=src[0];
|
|
ptr[1]=src[1];
|
|
ptr[2]=src[2];
|
|
ptr[3]=src[3];
|
|
|
|
/* next shading coefficient */
|
|
ptr+=4;
|
|
}
|
|
|
|
RIEF (sanei_genesys_read_register (dev, 0xd0+i, &val), buffer);
|
|
addr = val * 8192 + 0x10000000;
|
|
status = sanei_genesys_write_ahb (dev->dn, dev->usb_mode, addr, pixels, buffer);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "gl846_send_shading_data; write to AHB failed (%s)\n",
|
|
sane_strstatus (status));
|
|
free(buffer);
|
|
return status;
|
|
}
|
|
}
|
|
|
|
free(buffer);
|
|
DBGCOMPLETED;
|
|
|
|
return status;
|
|
}
|
|
|
|
/** @brief calibrates led exposure
|
|
* Calibrate exposure by scanning a white area until the used exposure gives
|
|
* data white enough.
|
|
* @param dev device to calibrate
|
|
*/
|
|
static SANE_Status
|
|
gl846_led_calibration (Genesys_Device * dev)
|
|
{
|
|
int num_pixels;
|
|
int total_size;
|
|
int used_res;
|
|
uint8_t *line;
|
|
int i, j;
|
|
SANE_Status status = SANE_STATUS_GOOD;
|
|
int val;
|
|
int channels, depth;
|
|
int avg[3], top[3], bottom[3];
|
|
int turn;
|
|
char fn[20];
|
|
uint16_t exp[3];
|
|
Sensor_Profile *sensor;
|
|
float move;
|
|
SANE_Bool acceptable;
|
|
|
|
DBGSTART;
|
|
|
|
move = SANE_UNFIX (dev->model->y_offset_calib);
|
|
move = (move * (dev->motor.base_ydpi/4)) / MM_PER_INCH;
|
|
if(move>20)
|
|
{
|
|
RIE(gl846_feed (dev, move));
|
|
}
|
|
DBG (DBG_io, "%s: move=%f steps\n", __func__, move);
|
|
|
|
/* offset calibration is always done in color mode */
|
|
channels = 3;
|
|
depth=16;
|
|
used_res=sanei_genesys_compute_dpihw(dev,dev->settings.xres);
|
|
sensor=get_sensor_profile(dev->model->ccd_type, used_res);
|
|
num_pixels = (dev->sensor.sensor_pixels*used_res)/dev->sensor.optical_res;
|
|
|
|
/* initial calibration reg values */
|
|
memcpy (dev->calib_reg, dev->reg, GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
|
|
|
|
/* set up for the calibration scan */
|
|
status = gl846_init_scan_regs (dev,
|
|
dev->calib_reg,
|
|
used_res,
|
|
used_res,
|
|
0,
|
|
0,
|
|
num_pixels,
|
|
1,
|
|
depth,
|
|
channels,
|
|
dev->settings.color_filter,
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_SINGLE_LINE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
total_size = num_pixels * channels * (depth/8) * 1; /* colors * bytes_per_color * scan lines */
|
|
line = malloc (total_size);
|
|
if (!line)
|
|
return SANE_STATUS_NO_MEM;
|
|
|
|
/* initial loop values and boundaries */
|
|
exp[0]=sensor->expr;
|
|
exp[1]=sensor->expg;
|
|
exp[2]=sensor->expb;
|
|
|
|
bottom[0]=29000;
|
|
bottom[1]=29000;
|
|
bottom[2]=29000;
|
|
|
|
top[0]=41000;
|
|
top[1]=51000;
|
|
top[2]=51000;
|
|
|
|
turn = 0;
|
|
|
|
/* no move during led calibration */
|
|
gl846_set_motor_power (dev->calib_reg, SANE_FALSE);
|
|
do
|
|
{
|
|
/* set up exposure */
|
|
sanei_genesys_set_double(dev->calib_reg,REG_EXPR,exp[0]);
|
|
sanei_genesys_set_double(dev->calib_reg,REG_EXPG,exp[1]);
|
|
sanei_genesys_set_double(dev->calib_reg,REG_EXPB,exp[2]);
|
|
|
|
/* write registers and scan data */
|
|
RIEF (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS), line);
|
|
|
|
DBG (DBG_info, "gl846_led_calibration: starting line reading\n");
|
|
RIEF (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), line);
|
|
RIEF (sanei_genesys_read_data_from_scanner (dev, line, total_size), line);
|
|
|
|
/* stop scanning */
|
|
RIEF (gl846_stop_action (dev), line);
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
snprintf (fn, 20, "led_%02d.pnm", turn);
|
|
sanei_genesys_write_pnm_file (fn, line, depth, channels, num_pixels, 1);
|
|
}
|
|
|
|
/* compute average */
|
|
for (j = 0; j < channels; j++)
|
|
{
|
|
avg[j] = 0;
|
|
for (i = 0; i < num_pixels; i++)
|
|
{
|
|
if (dev->model->is_cis)
|
|
val =
|
|
line[i * 2 + j * 2 * num_pixels + 1] * 256 +
|
|
line[i * 2 + j * 2 * num_pixels];
|
|
else
|
|
val =
|
|
line[i * 2 * channels + 2 * j + 1] * 256 +
|
|
line[i * 2 * channels + 2 * j];
|
|
avg[j] += val;
|
|
}
|
|
|
|
avg[j] /= num_pixels;
|
|
}
|
|
|
|
DBG (DBG_info, "gl846_led_calibration: average: %d,%d,%d\n", avg[0], avg[1], avg[2]);
|
|
|
|
/* check if exposure gives average within the boundaries */
|
|
acceptable = SANE_TRUE;
|
|
for(i=0;i<3;i++)
|
|
{
|
|
if(avg[i]<bottom[i])
|
|
{
|
|
exp[i]=(exp[i]*bottom[i])/avg[i];
|
|
acceptable = SANE_FALSE;
|
|
}
|
|
if(avg[i]>top[i])
|
|
{
|
|
exp[i]=(exp[i]*top[i])/avg[i];
|
|
acceptable = SANE_FALSE;
|
|
}
|
|
}
|
|
|
|
turn++;
|
|
}
|
|
while (!acceptable && turn < 100);
|
|
|
|
DBG (DBG_info, "gl846_led_calibration: acceptable exposure: %d,%d,%d\n", exp[0], exp[1], exp[2]);
|
|
|
|
/* set these values as final ones for scan */
|
|
sanei_genesys_set_double(dev->reg,REG_EXPR,exp[0]);
|
|
sanei_genesys_set_double(dev->reg,REG_EXPG,exp[1]);
|
|
sanei_genesys_set_double(dev->reg,REG_EXPB,exp[2]);
|
|
|
|
/* store in this struct since it is the one used by cache calibration */
|
|
dev->sensor.regs_0x10_0x1d[0] = (exp[0] >> 8) & 0xff;
|
|
dev->sensor.regs_0x10_0x1d[1] = exp[0] & 0xff;
|
|
dev->sensor.regs_0x10_0x1d[2] = (exp[1] >> 8) & 0xff;
|
|
dev->sensor.regs_0x10_0x1d[3] = exp[1] & 0xff;
|
|
dev->sensor.regs_0x10_0x1d[4] = (exp[2] >> 8) & 0xff;
|
|
dev->sensor.regs_0x10_0x1d[5] = exp[2] & 0xff;
|
|
|
|
/* cleanup before return */
|
|
free (line);
|
|
|
|
/* go back home */
|
|
if(move>20)
|
|
{
|
|
status=gl846_slow_back_home (dev, SANE_TRUE);
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* set up GPIO/GPOE for idle state
|
|
*/
|
|
static SANE_Status
|
|
gl846_init_gpio (Genesys_Device * dev)
|
|
{
|
|
SANE_Status status = SANE_STATUS_GOOD;
|
|
int idx=0;
|
|
|
|
DBGSTART;
|
|
|
|
/* search GPIO profile */
|
|
while(gpios[idx].sensor_id!=0 && dev->model->gpo_type!=gpios[idx].sensor_id)
|
|
{
|
|
idx++;
|
|
}
|
|
if(gpios[idx].sensor_id==0)
|
|
{
|
|
DBG (DBG_error, "%s: failed to find GPIO profile for sensor_id=%d\n", __func__, dev->model->ccd_type);
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
RIE (sanei_genesys_write_register (dev, REGA7, gpios[idx].ra7));
|
|
RIE (sanei_genesys_write_register (dev, REGA6, gpios[idx].ra6));
|
|
|
|
RIE (sanei_genesys_write_register (dev, REG6B, gpios[idx].r6b));
|
|
RIE (sanei_genesys_write_register (dev, REG6C, gpios[idx].r6c));
|
|
RIE (sanei_genesys_write_register (dev, REG6D, gpios[idx].r6d));
|
|
RIE (sanei_genesys_write_register (dev, REG6E, gpios[idx].r6e));
|
|
RIE (sanei_genesys_write_register (dev, REG6F, gpios[idx].r6f));
|
|
|
|
RIE (sanei_genesys_write_register (dev, REGA8, gpios[idx].ra8));
|
|
RIE (sanei_genesys_write_register (dev, REGA9, gpios[idx].ra9));
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* set memory layout by filling values in dedicated registers
|
|
*/
|
|
static SANE_Status
|
|
gl846_init_memory_layout (Genesys_Device * dev)
|
|
{
|
|
SANE_Status status = SANE_STATUS_GOOD;
|
|
int idx = 0, i;
|
|
uint8_t val;
|
|
|
|
DBGSTART
|
|
|
|
/* point to per model memory layout */
|
|
idx = 0;
|
|
while(layouts[idx].model!=NULL && strcmp(dev->model->name,layouts[idx].model)!=0)
|
|
{
|
|
if(strcmp(dev->model->name,layouts[idx].model)!=0)
|
|
idx++;
|
|
}
|
|
if(layouts[idx].model==NULL)
|
|
{
|
|
DBG(DBG_error, "%s: failed to find memory layout for model %s!\n", __func__, dev->model->name);
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
/* CLKSET and DRAMSEL */
|
|
val = layouts[idx].dramsel;
|
|
RIE (sanei_genesys_write_register (dev, REG0B, val));
|
|
dev->reg[reg_0x0b].value = val;
|
|
|
|
/* prevent further writings by bulk write register */
|
|
dev->reg[reg_0x0b].address = 0x00;
|
|
|
|
/* setup base address for shading and scanned data. */
|
|
for(i=0;i<10;i++)
|
|
{
|
|
sanei_genesys_write_register (dev, 0xe0+i, layouts[idx].rx[i]);
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/* *
|
|
* initialize ASIC from power on condition
|
|
*/
|
|
#ifndef UNIT_TESTING
|
|
static
|
|
#endif
|
|
SANE_Status
|
|
gl846_boot (Genesys_Device * dev, SANE_Bool cold)
|
|
{
|
|
SANE_Status status;
|
|
uint8_t val;
|
|
|
|
DBGSTART;
|
|
|
|
/* reset ASIC if cold boot */
|
|
if(cold)
|
|
{
|
|
RIE (sanei_genesys_write_register (dev, 0x0e, 0x01));
|
|
RIE (sanei_genesys_write_register (dev, 0x0e, 0x00));
|
|
}
|
|
|
|
if(dev->usb_mode == 1)
|
|
{
|
|
val = 0x14;
|
|
}
|
|
else
|
|
{
|
|
val = 0x11;
|
|
}
|
|
RIE (sanei_genesys_write_0x8c (dev, 0x0f, val));
|
|
|
|
/* test CHKVER */
|
|
RIE (sanei_genesys_read_register (dev, REG40, &val));
|
|
if (val & REG40_CHKVER)
|
|
{
|
|
RIE (sanei_genesys_read_register (dev, 0x00, &val));
|
|
DBG (DBG_info, "%s: reported version for genesys chip is 0x%02x\n", __func__, val);
|
|
}
|
|
|
|
/* Set default values for registers */
|
|
gl846_init_registers (dev);
|
|
|
|
/* Write initial registers */
|
|
RIE (dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL846_MAX_REGS));
|
|
|
|
/* Enable DRAM by setting a rising edge on bit 3 of reg 0x0b */
|
|
val = dev->reg[reg_0x0b].value & REG0B_DRAMSEL;
|
|
val = (val | REG0B_ENBDRAM);
|
|
RIE (sanei_genesys_write_register (dev, REG0B, val));
|
|
dev->reg[reg_0x0b].value = val;
|
|
|
|
/* CIS_LINE */
|
|
if (dev->model->is_cis)
|
|
{
|
|
SETREG (0x08, REG08_CIS_LINE);
|
|
RIE (sanei_genesys_write_register (dev, 0x08, dev->reg[reg_0x08].value));
|
|
}
|
|
|
|
/* set up clocks */
|
|
RIE (sanei_genesys_write_0x8c (dev, 0x10, 0x0e));
|
|
RIE (sanei_genesys_write_0x8c (dev, 0x13, 0x0e));
|
|
|
|
/* setup gpio */
|
|
RIE (gl846_init_gpio (dev));
|
|
|
|
/* setup internal memory layout */
|
|
RIE (gl846_init_memory_layout (dev));
|
|
|
|
SETREG (0xf8, 0x05);
|
|
RIE (sanei_genesys_write_register (dev, 0xf8, dev->reg[reg_0xf8].value));
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/**
|
|
* initialize backend and ASIC : registers, motor tables, and gamma tables
|
|
* then ensure scanner's head is at home
|
|
*/
|
|
#ifndef UNIT_TESTING
|
|
static
|
|
#endif
|
|
SANE_Status gl846_init (Genesys_Device * dev)
|
|
{
|
|
SANE_Status status;
|
|
|
|
DBG_INIT ();
|
|
DBGSTART;
|
|
|
|
status=sanei_genesys_asic_init(dev, GENESYS_GL846_MAX_REGS);
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
static SANE_Status
|
|
gl846_update_hardware_sensors (Genesys_Scanner * s)
|
|
{
|
|
/* do what is needed to get a new set of events, but try to not lose
|
|
any of them.
|
|
*/
|
|
SANE_Status status = SANE_STATUS_GOOD;
|
|
uint8_t val;
|
|
uint8_t scan, file, email, copy;
|
|
switch(s->dev->model->gpo_type)
|
|
{
|
|
default:
|
|
scan=0x01;
|
|
file=0x02;
|
|
email=0x04;
|
|
copy=0x08;
|
|
}
|
|
RIE (sanei_genesys_read_register (s->dev, REG6D, &val));
|
|
|
|
if (s->val[OPT_SCAN_SW].b == s->last_val[OPT_SCAN_SW].b)
|
|
s->val[OPT_SCAN_SW].b = (val & scan) == 0;
|
|
if (s->val[OPT_FILE_SW].b == s->last_val[OPT_FILE_SW].b)
|
|
s->val[OPT_FILE_SW].b = (val & file) == 0;
|
|
if (s->val[OPT_EMAIL_SW].b == s->last_val[OPT_EMAIL_SW].b)
|
|
s->val[OPT_EMAIL_SW].b = (val & email) == 0;
|
|
if (s->val[OPT_COPY_SW].b == s->last_val[OPT_COPY_SW].b)
|
|
s->val[OPT_COPY_SW].b = (val & copy) == 0;
|
|
|
|
return status;
|
|
}
|
|
|
|
/** @brief search for a full width black or white strip.
|
|
* This function searches for a black or white stripe across the scanning area.
|
|
* When searching backward, the searched area must completely be of the desired
|
|
* color since this area will be used for calibration which scans forward.
|
|
* @param dev scanner device
|
|
* @param forward SANE_TRUE if searching forward, SANE_FALSE if searching backward
|
|
* @param black SANE_TRUE if searching for a black strip, SANE_FALSE for a white strip
|
|
* @return SANE_STATUS_GOOD if a matching strip is found, SANE_STATUS_UNSUPPORTED if not
|
|
*/
|
|
static SANE_Status
|
|
gl846_search_strip (Genesys_Device * dev, SANE_Bool forward, SANE_Bool black)
|
|
{
|
|
unsigned int pixels, lines, channels;
|
|
SANE_Status status;
|
|
Genesys_Register_Set local_reg[GENESYS_GL846_MAX_REGS];
|
|
size_t size;
|
|
uint8_t *data;
|
|
int steps, depth, dpi;
|
|
unsigned int pass, count, found, x, y;
|
|
char title[80];
|
|
Genesys_Register_Set *r;
|
|
|
|
DBG (DBG_proc, "gl846_search_strip %s %s\n", black ? "black" : "white",
|
|
forward ? "forward" : "reverse");
|
|
|
|
status = gl846_set_fe (dev, AFE_SET);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_search_strip: gl846_set_fe() failed: %s\n",
|
|
sane_strstatus(status));
|
|
return status;
|
|
}
|
|
|
|
status = gl846_stop_action (dev);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_search_strip: failed to stop: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* set up for a gray scan at lowest dpi */
|
|
dpi = 9600;
|
|
for (x = 0; x < MAX_RESOLUTIONS; x++)
|
|
{
|
|
if (dev->model->xdpi_values[x] > 0 && dev->model->xdpi_values[x] < dpi)
|
|
dpi = dev->model->xdpi_values[x];
|
|
}
|
|
channels = 1;
|
|
/* 10 MM */
|
|
/* lines = (10 * dpi) / MM_PER_INCH; */
|
|
/* shading calibation is done with dev->motor.base_ydpi */
|
|
lines = (dev->model->shading_lines * dpi) / dev->motor.base_ydpi;
|
|
depth = 8;
|
|
pixels = (dev->sensor.sensor_pixels * dpi) / dev->sensor.optical_res;
|
|
size = pixels * channels * lines * (depth / 8);
|
|
data = malloc (size);
|
|
if (!data)
|
|
{
|
|
DBG (DBG_error, "gl846_search_strip: failed to allocate memory\n");
|
|
return SANE_STATUS_NO_MEM;
|
|
}
|
|
dev->scanhead_position_in_steps = 0;
|
|
|
|
memcpy (local_reg, dev->reg,
|
|
GENESYS_GL846_MAX_REGS * sizeof (Genesys_Register_Set));
|
|
|
|
status = gl846_init_scan_regs (dev,
|
|
local_reg,
|
|
dpi,
|
|
dpi,
|
|
0,
|
|
0,
|
|
pixels,
|
|
lines,
|
|
depth,
|
|
channels,
|
|
0,
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free(data);
|
|
DBG (DBG_error,
|
|
"gl846_search_strip: failed to setup for scan: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* set up for reverse or forward */
|
|
r = sanei_genesys_get_address (local_reg, REG02);
|
|
if (forward)
|
|
r->value &= ~REG02_MTRREV;
|
|
else
|
|
r->value |= REG02_MTRREV;
|
|
|
|
|
|
status = dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL846_MAX_REGS);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free(data);
|
|
DBG (DBG_error,
|
|
"gl846_search_strip: Failed to bulk write registers: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
status = gl846_begin_scan (dev, local_reg, SANE_TRUE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error,
|
|
"gl846_search_strip: failed to begin scan: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* waits for valid data */
|
|
do
|
|
sanei_genesys_test_buffer_empty (dev, &steps);
|
|
while (steps);
|
|
|
|
/* now we're on target, we can read data */
|
|
status = sanei_genesys_read_data_from_scanner (dev, data, size);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to read data: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
status = gl846_stop_action (dev);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error, "gl846_search_strip: gl846_stop_action failed\n");
|
|
return status;
|
|
}
|
|
|
|
pass = 0;
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
sprintf (title, "search_strip_%s_%s%02d.pnm",
|
|
black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass);
|
|
sanei_genesys_write_pnm_file (title, data, depth, channels, pixels,
|
|
lines);
|
|
}
|
|
|
|
/* loop until strip is found or maximum pass number done */
|
|
found = 0;
|
|
while (pass < 20 && !found)
|
|
{
|
|
status = dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL846_MAX_REGS);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_search_strip: Failed to bulk write registers: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* now start scan */
|
|
status = gl846_begin_scan (dev, local_reg, SANE_TRUE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error,
|
|
"gl846_search_strip: failed to begin scan: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
/* waits for valid data */
|
|
do
|
|
sanei_genesys_test_buffer_empty (dev, &steps);
|
|
while (steps);
|
|
|
|
/* now we're on target, we can read data */
|
|
status = sanei_genesys_read_data_from_scanner (dev, data, size);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error,
|
|
"gl846_search_start_position: failed to read data: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
status = gl846_stop_action (dev);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
free (data);
|
|
DBG (DBG_error, "gl846_search_strip: gl846_stop_action failed\n");
|
|
return status;
|
|
}
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
sprintf (title, "search_strip_%s_%s%02d.pnm",
|
|
black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass);
|
|
sanei_genesys_write_pnm_file (title, data, depth, channels,
|
|
pixels, lines);
|
|
}
|
|
|
|
/* search data to find black strip */
|
|
/* when searching forward, we only need one line of the searched color since we
|
|
* will scan forward. But when doing backward search, we need all the area of the
|
|
* same color */
|
|
if (forward)
|
|
{
|
|
for (y = 0; y < lines && !found; y++)
|
|
{
|
|
count = 0;
|
|
/* count of white/black pixels depending on the color searched */
|
|
for (x = 0; x < pixels; x++)
|
|
{
|
|
/* when searching for black, detect white pixels */
|
|
if (black && data[y * pixels + x] > 90)
|
|
{
|
|
count++;
|
|
}
|
|
/* when searching for white, detect black pixels */
|
|
if (!black && data[y * pixels + x] < 60)
|
|
{
|
|
count++;
|
|
}
|
|
}
|
|
|
|
/* at end of line, if count >= 3%, line is not fully of the desired color
|
|
* so we must go to next line of the buffer */
|
|
/* count*100/pixels < 3 */
|
|
if ((count * 100) / pixels < 3)
|
|
{
|
|
found = 1;
|
|
DBG (DBG_data,
|
|
"gl846_search_strip: strip found forward during pass %d at line %d\n",
|
|
pass, y);
|
|
}
|
|
else
|
|
{
|
|
DBG (DBG_data,
|
|
"gl846_search_strip: pixels=%d, count=%d (%d%%)\n",
|
|
pixels, count, (100 * count) / pixels);
|
|
}
|
|
}
|
|
}
|
|
else /* since calibration scans are done forward, we need the whole area
|
|
to be of the required color when searching backward */
|
|
{
|
|
count = 0;
|
|
for (y = 0; y < lines; y++)
|
|
{
|
|
/* count of white/black pixels depending on the color searched */
|
|
for (x = 0; x < pixels; x++)
|
|
{
|
|
/* when searching for black, detect white pixels */
|
|
if (black && data[y * pixels + x] > 90)
|
|
{
|
|
count++;
|
|
}
|
|
/* when searching for white, detect black pixels */
|
|
if (!black && data[y * pixels + x] < 60)
|
|
{
|
|
count++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* at end of area, if count >= 3%, area is not fully of the desired color
|
|
* so we must go to next buffer */
|
|
if ((count * 100) / (pixels * lines) < 3)
|
|
{
|
|
found = 1;
|
|
DBG (DBG_data,
|
|
"gl846_search_strip: strip found backward during pass %d \n",
|
|
pass);
|
|
}
|
|
else
|
|
{
|
|
DBG (DBG_data,
|
|
"gl846_search_strip: pixels=%d, count=%d (%d%%)\n",
|
|
pixels, count, (100 * count) / pixels);
|
|
}
|
|
}
|
|
pass++;
|
|
}
|
|
free (data);
|
|
if (found)
|
|
{
|
|
status = SANE_STATUS_GOOD;
|
|
DBG (DBG_info, "gl846_search_strip: %s strip found\n",
|
|
black ? "black" : "white");
|
|
}
|
|
else
|
|
{
|
|
status = SANE_STATUS_UNSUPPORTED;
|
|
DBG (DBG_info, "gl846_search_strip: %s strip not found\n",
|
|
black ? "black" : "white");
|
|
}
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* average dark pixels of a 8 bits scan
|
|
*/
|
|
static int
|
|
dark_average (uint8_t * data, unsigned int pixels, unsigned int lines,
|
|
unsigned int channels, unsigned int black)
|
|
{
|
|
unsigned int i, j, k, average, count;
|
|
unsigned int avg[3];
|
|
uint8_t val;
|
|
|
|
/* computes average value on black margin */
|
|
for (k = 0; k < channels; k++)
|
|
{
|
|
avg[k] = 0;
|
|
count = 0;
|
|
for (i = 0; i < lines; i++)
|
|
{
|
|
for (j = 0; j < black; j++)
|
|
{
|
|
val = data[i * channels * pixels + j + k];
|
|
avg[k] += val;
|
|
count++;
|
|
}
|
|
}
|
|
if (count)
|
|
avg[k] /= count;
|
|
DBG (DBG_info, "dark_average: avg[%d] = %d\n", k, avg[k]);
|
|
}
|
|
average = 0;
|
|
for (i = 0; i < channels; i++)
|
|
average += avg[i];
|
|
average /= channels;
|
|
DBG (DBG_info, "dark_average: average = %d\n", average);
|
|
return average;
|
|
}
|
|
|
|
static SANE_Status
|
|
gl846_offset_calibration (Genesys_Device * dev)
|
|
{
|
|
SANE_Status status = SANE_STATUS_GOOD;
|
|
uint8_t *first_line, *second_line, reg04;
|
|
unsigned int channels, bpp;
|
|
char title[32];
|
|
int pass = 0, avg, total_size;
|
|
int topavg, bottomavg, resolution, lines;
|
|
int top, bottom, black_pixels, pixels;
|
|
|
|
DBGSTART;
|
|
|
|
/* no gain nor offset for AKM AFE */
|
|
RIE (sanei_genesys_read_register (dev, REG04, ®04));
|
|
if ((reg04 & REG04_FESET) == 0x02)
|
|
{
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/* offset calibration is always done in color mode */
|
|
channels = 3;
|
|
resolution=dev->sensor.optical_res;
|
|
dev->calib_pixels = dev->sensor.sensor_pixels;
|
|
lines=1;
|
|
bpp=8;
|
|
pixels= (dev->sensor.sensor_pixels*resolution) / dev->sensor.optical_res;
|
|
black_pixels = (dev->sensor.black_pixels * resolution) / dev->sensor.optical_res;
|
|
DBG (DBG_io2, "gl846_offset_calibration: black_pixels=%d\n", black_pixels);
|
|
|
|
status = gl846_init_scan_regs (dev,
|
|
dev->calib_reg,
|
|
resolution,
|
|
resolution,
|
|
0,
|
|
0,
|
|
pixels,
|
|
lines,
|
|
bpp,
|
|
channels,
|
|
dev->settings.color_filter,
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_SINGLE_LINE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_offset_calibration: failed to setup scan: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
gl846_set_motor_power (dev->calib_reg, SANE_FALSE);
|
|
|
|
/* allocate memory for scans */
|
|
total_size = pixels * channels * lines * (bpp/8); /* colors * bytes_per_color * scan lines */
|
|
|
|
first_line = malloc (total_size);
|
|
if (!first_line)
|
|
return SANE_STATUS_NO_MEM;
|
|
|
|
second_line = malloc (total_size);
|
|
if (!second_line)
|
|
{
|
|
free (first_line);
|
|
return SANE_STATUS_NO_MEM;
|
|
}
|
|
|
|
/* init gain */
|
|
dev->frontend.gain[0] = 0;
|
|
dev->frontend.gain[1] = 0;
|
|
dev->frontend.gain[2] = 0;
|
|
|
|
/* scan with no move */
|
|
bottom = 10;
|
|
dev->frontend.offset[0] = bottom;
|
|
dev->frontend.offset[1] = bottom;
|
|
dev->frontend.offset[2] = bottom;
|
|
|
|
RIEF2 (gl846_set_fe(dev, AFE_SET), first_line, second_line);
|
|
RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS), first_line, second_line);
|
|
DBG (DBG_info, "gl846_offset_calibration: starting first line reading\n");
|
|
RIEF2 (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line);
|
|
RIEF2 (sanei_genesys_read_data_from_scanner (dev, first_line, total_size), first_line, second_line);
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
snprintf(title,20,"offset%03d.pnm",bottom);
|
|
sanei_genesys_write_pnm_file (title, first_line, bpp, channels, pixels, lines);
|
|
}
|
|
|
|
bottomavg = dark_average (first_line, pixels, lines, channels, black_pixels);
|
|
DBG (DBG_io2, "gl846_offset_calibration: bottom avg=%d\n", bottomavg);
|
|
|
|
/* now top value */
|
|
top = 255;
|
|
dev->frontend.offset[0] = top;
|
|
dev->frontend.offset[1] = top;
|
|
dev->frontend.offset[2] = top;
|
|
RIEF2 (gl846_set_fe(dev, AFE_SET), first_line, second_line);
|
|
RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS), first_line, second_line);
|
|
DBG (DBG_info, "gl846_offset_calibration: starting second line reading\n");
|
|
RIEF2 (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line);
|
|
RIEF2 (sanei_genesys_read_data_from_scanner (dev, second_line, total_size), first_line, second_line);
|
|
|
|
topavg = dark_average (second_line, pixels, lines, channels, black_pixels);
|
|
DBG (DBG_io2, "gl846_offset_calibration: top avg=%d\n", topavg);
|
|
|
|
/* loop until acceptable level */
|
|
while ((pass < 32) && (top - bottom > 1))
|
|
{
|
|
pass++;
|
|
|
|
/* settings for new scan */
|
|
dev->frontend.offset[0] = (top + bottom) / 2;
|
|
dev->frontend.offset[1] = (top + bottom) / 2;
|
|
dev->frontend.offset[2] = (top + bottom) / 2;
|
|
|
|
/* scan with no move */
|
|
RIEF2 (gl846_set_fe(dev, AFE_SET), first_line, second_line);
|
|
RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL846_MAX_REGS), first_line, second_line);
|
|
DBG (DBG_info, "gl846_offset_calibration: starting second line reading\n");
|
|
RIEF2 (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line);
|
|
RIEF2 (sanei_genesys_read_data_from_scanner (dev, second_line, total_size), first_line, second_line);
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
{
|
|
sprintf (title, "offset%03d.pnm", dev->frontend.offset[1]);
|
|
sanei_genesys_write_pnm_file (title, second_line, bpp, channels, pixels, lines);
|
|
}
|
|
|
|
avg = dark_average (second_line, pixels, lines, channels, black_pixels);
|
|
DBG (DBG_info, "gl846_offset_calibration: avg=%d offset=%d\n", avg,
|
|
dev->frontend.offset[1]);
|
|
|
|
/* compute new boundaries */
|
|
if (topavg == avg)
|
|
{
|
|
topavg = avg;
|
|
top = dev->frontend.offset[1];
|
|
}
|
|
else
|
|
{
|
|
bottomavg = avg;
|
|
bottom = dev->frontend.offset[1];
|
|
}
|
|
}
|
|
DBG (DBG_info, "gl846_offset_calibration: offset=(%d,%d,%d)\n", dev->frontend.offset[0], dev->frontend.offset[1], dev->frontend.offset[2]);
|
|
|
|
/* cleanup before return */
|
|
free (first_line);
|
|
free (second_line);
|
|
|
|
DBGCOMPLETED;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
static SANE_Status
|
|
gl846_coarse_gain_calibration (Genesys_Device * dev, int dpi)
|
|
{
|
|
int pixels;
|
|
int total_size;
|
|
uint8_t *line, reg04;
|
|
int i, j, channels;
|
|
SANE_Status status = SANE_STATUS_GOOD;
|
|
int max[3];
|
|
float gain[3],coeff;
|
|
int val, code, lines;
|
|
int resolution;
|
|
int bpp;
|
|
|
|
DBG (DBG_proc, "gl846_coarse_gain_calibration: dpi = %d\n", dpi);
|
|
|
|
/* no gain nor offset for AKM AFE */
|
|
RIE (sanei_genesys_read_register (dev, REG04, ®04));
|
|
if ((reg04 & REG04_FESET) == 0x02)
|
|
{
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
/* coarse gain calibration is always done in color mode */
|
|
channels = 3;
|
|
|
|
/* follow CKSEL */
|
|
if(dev->settings.xres<dev->sensor.optical_res)
|
|
{
|
|
coeff=0.9;
|
|
/*resolution=dev->sensor.optical_res/2;*/
|
|
resolution=dev->sensor.optical_res;
|
|
}
|
|
else
|
|
{
|
|
resolution=dev->sensor.optical_res;
|
|
coeff=1.0;
|
|
}
|
|
lines=10;
|
|
bpp=8;
|
|
pixels = (dev->sensor.sensor_pixels * resolution) / dev->sensor.optical_res;
|
|
|
|
status = gl846_init_scan_regs (dev,
|
|
dev->calib_reg,
|
|
resolution,
|
|
resolution,
|
|
0,
|
|
0,
|
|
pixels,
|
|
lines,
|
|
bpp,
|
|
channels,
|
|
dev->settings.color_filter,
|
|
SCAN_FLAG_DISABLE_SHADING |
|
|
SCAN_FLAG_DISABLE_GAMMA |
|
|
SCAN_FLAG_SINGLE_LINE |
|
|
SCAN_FLAG_IGNORE_LINE_DISTANCE);
|
|
gl846_set_motor_power (dev->calib_reg, SANE_FALSE);
|
|
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error,
|
|
"gl846_coarse_calibration: failed to setup scan: %s\n",
|
|
sane_strstatus (status));
|
|
return status;
|
|
}
|
|
|
|
RIE (dev->model->cmd_set->bulk_write_register
|
|
(dev, dev->calib_reg, GENESYS_GL846_MAX_REGS));
|
|
|
|
total_size = pixels * channels * (16/bpp) * lines;
|
|
|
|
line = malloc (total_size);
|
|
if (!line)
|
|
return SANE_STATUS_NO_MEM;
|
|
|
|
RIEF (gl846_set_fe(dev, AFE_SET), line);
|
|
RIEF (gl846_begin_scan (dev, dev->calib_reg, SANE_TRUE), line);
|
|
RIEF (sanei_genesys_read_data_from_scanner (dev, line, total_size), line);
|
|
|
|
if (DBG_LEVEL >= DBG_data)
|
|
sanei_genesys_write_pnm_file ("coarse.pnm", line, bpp, channels, pixels, lines);
|
|
|
|
/* average value on each channel */
|
|
for (j = 0; j < channels; j++)
|
|
{
|
|
max[j] = 0;
|
|
for (i = pixels/4; i < (pixels*3/4); i++)
|
|
{
|
|
if (dev->model->is_cis)
|
|
val = line[i + j * pixels];
|
|
else
|
|
val = line[i * channels + j];
|
|
|
|
max[j] += val;
|
|
}
|
|
max[j] = max[j] / (pixels/2);
|
|
|
|
gain[j] = ((float) dev->sensor.gain_white_ref*coeff) / max[j];
|
|
|
|
/* turn logical gain value into gain code, checking for overflow */
|
|
code = 283 - 208 / gain[j];
|
|
if (code > 255)
|
|
code = 255;
|
|
else if (code < 0)
|
|
code = 0;
|
|
dev->frontend.gain[j] = code;
|
|
|
|
DBG (DBG_proc,
|
|
"gl846_coarse_gain_calibration: channel %d, max=%d, gain = %f, setting:%d\n",
|
|
j, max[j], gain[j], dev->frontend.gain[j]);
|
|
}
|
|
|
|
if (dev->model->is_cis)
|
|
{
|
|
if (dev->frontend.gain[0] > dev->frontend.gain[1])
|
|
dev->frontend.gain[0] = dev->frontend.gain[1];
|
|
if (dev->frontend.gain[0] > dev->frontend.gain[2])
|
|
dev->frontend.gain[0] = dev->frontend.gain[2];
|
|
dev->frontend.gain[2] = dev->frontend.gain[1] = dev->frontend.gain[0];
|
|
}
|
|
|
|
free (line);
|
|
|
|
RIE (gl846_stop_action (dev));
|
|
|
|
status=gl846_slow_back_home (dev, SANE_TRUE);
|
|
|
|
DBGCOMPLETED;
|
|
return status;
|
|
}
|
|
|
|
|
|
/** the gl846 command set */
|
|
static Genesys_Command_Set gl846_cmd_set = {
|
|
"gl846-generic", /* the name of this set */
|
|
|
|
gl846_init,
|
|
NULL,
|
|
gl846_init_regs_for_coarse_calibration,
|
|
gl846_init_regs_for_shading,
|
|
gl846_init_regs_for_scan,
|
|
|
|
gl846_get_filter_bit,
|
|
gl846_get_lineart_bit,
|
|
gl846_get_bitset_bit,
|
|
gl846_get_gain4_bit,
|
|
gl846_get_fast_feed_bit,
|
|
gl846_test_buffer_empty_bit,
|
|
gl846_test_motor_flag_bit,
|
|
|
|
gl846_bulk_full_size,
|
|
|
|
gl846_set_fe,
|
|
gl846_set_powersaving,
|
|
gl846_save_power,
|
|
|
|
gl846_set_motor_power,
|
|
gl846_set_lamp_power,
|
|
|
|
gl846_begin_scan,
|
|
gl846_end_scan,
|
|
|
|
sanei_genesys_send_gamma_table,
|
|
|
|
gl846_search_start_position,
|
|
|
|
gl846_offset_calibration,
|
|
gl846_coarse_gain_calibration,
|
|
gl846_led_calibration,
|
|
|
|
gl846_slow_back_home,
|
|
NULL,
|
|
|
|
sanei_genesys_bulk_write_register,
|
|
NULL,
|
|
gl846_bulk_read_data,
|
|
|
|
gl846_update_hardware_sensors,
|
|
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
gl846_search_strip,
|
|
|
|
sanei_genesys_is_compatible_calibration,
|
|
NULL,
|
|
gl846_send_shading_data,
|
|
gl846_calculate_current_setup,
|
|
gl846_boot,
|
|
NULL
|
|
};
|
|
|
|
SANE_Status
|
|
sanei_gl846_init_cmd_set (Genesys_Device * dev)
|
|
{
|
|
dev->model->cmd_set = &gl846_cmd_set;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* vim: set sw=2 cino=>2se-1sn-1s{s^-1st0(0u0 smarttab expandtab: */
|