kopia lustrzana https://gitlab.com/sane-project/backends
971 wiersze
24 KiB
C
971 wiersze
24 KiB
C
/* SANE - Scanner Access Now Easy.
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Copyright (C) 2011-2014 Rolf Bensch <rolf at bensch hyphen online dot de>
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Copyright (C) 2006-2007 Wittawat Yamwong <wittawat@web.de>
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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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/****************************************************************************
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* Credits should go to Martin Schewe (http://pixma.schewe.com) who analysed
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* the protocol of MP750.
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****************************************************************************/
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#include "../include/sane/config.h"
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#include <stdlib.h>
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#include <string.h>
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#include "pixma_rename.h"
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#include "pixma_common.h"
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#include "pixma_io.h"
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/* TODO: remove lines marked with SIM. They are inserted so that I can test
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the subdriver with the simulator. WY */
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#ifdef __GNUC__
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# define UNUSED(v) (void) v
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#else
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# define UNUSED(v)
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#endif
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#define IMAGE_BLOCK_SIZE 0xc000
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#define CMDBUF_SIZE 512
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#define HAS_PAPER(s) (s[1] == 0)
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#define IS_WARMING_UP(s) (s[7] != 3)
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#define IS_CALIBRATED(s) (s[8] == 0xf)
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#define MP750_PID 0x1706
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#define MP760_PID 0x1708
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#define MP780_PID 0x1707
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enum mp750_state_t
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{
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state_idle,
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state_warmup,
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state_scanning,
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state_transfering,
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state_finished
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};
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enum mp750_cmd_t
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{
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cmd_start_session = 0xdb20,
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cmd_select_source = 0xdd20,
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cmd_scan_param = 0xde20,
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cmd_status = 0xf320,
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cmd_abort_session = 0xef20,
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cmd_time = 0xeb80,
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cmd_read_image = 0xd420,
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cmd_activate = 0xcf60,
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cmd_calibrate = 0xe920,
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cmd_error_info = 0xff20
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};
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typedef struct mp750_t
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{
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enum mp750_state_t state;
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pixma_cmdbuf_t cb;
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unsigned raw_width, raw_height;
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uint8_t current_status[12];
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uint8_t *buf, *rawimg, *img;
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/* make new buffer for rgb_to_gray to act on */
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uint8_t *imgcol;
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unsigned line_size; /* need in 2 functions */
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unsigned rawimg_left, imgbuf_len, last_block_size, imgbuf_ofs;
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int shifted_bytes;
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int stripe_shift; /* for 2400dpi */
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unsigned last_block;
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unsigned monochrome:1;
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unsigned needs_abort:1;
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} mp750_t;
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static void mp750_finish_scan (pixma_t * s);
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static void check_status (pixma_t * s);
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static int
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has_paper (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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return HAS_PAPER (mp->current_status);
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}
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static int
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is_warming_up (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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return IS_WARMING_UP (mp->current_status);
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}
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static int
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is_calibrated (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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return IS_CALIBRATED (mp->current_status);
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}
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static void
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drain_bulk_in (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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while (pixma_read (s->io, mp->buf, IMAGE_BLOCK_SIZE) >= 0);
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}
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static int
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abort_session (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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return pixma_exec_short_cmd (s, &mp->cb, cmd_abort_session);
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}
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static int
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query_status (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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uint8_t *data;
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int error;
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data = pixma_newcmd (&mp->cb, cmd_status, 0, 12);
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error = pixma_exec (s, &mp->cb);
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if (error >= 0)
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{
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memcpy (mp->current_status, data, 12);
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PDBG (pixma_dbg (3, "Current status: paper=%u cal=%u lamp=%u\n",
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data[1], data[8], data[7]));
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}
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return error;
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}
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static int
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activate (pixma_t * s, uint8_t x)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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uint8_t *data = pixma_newcmd (&mp->cb, cmd_activate, 10, 0);
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data[0] = 1;
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data[3] = x;
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return pixma_exec (s, &mp->cb);
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}
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static int
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activate_cs (pixma_t * s, uint8_t x)
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{
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/*SIM*/ check_status (s);
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return activate (s, x);
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}
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static int
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start_session (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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return pixma_exec_short_cmd (s, &mp->cb, cmd_start_session);
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}
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static int
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select_source (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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uint8_t *data = pixma_newcmd (&mp->cb, cmd_select_source, 10, 0);
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data[0] = (s->param->source == PIXMA_SOURCE_ADF) ? 2 : 1;
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data[1] = 1;
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return pixma_exec (s, &mp->cb);
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}
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static int
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has_ccd_sensor (pixma_t * s)
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{
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return ((s->cfg->cap & PIXMA_CAP_CCD) != 0);
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}
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static int
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is_ccd_grayscale (pixma_t * s)
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{
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return (has_ccd_sensor (s) && (s->param->channels == 1));
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}
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/* CCD sensors don't have a Grayscale mode, but use color mode instead */
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static unsigned
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get_cis_ccd_line_size (pixma_t * s)
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{
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return (s->param->wx ? s->param->line_size / s->param->w * s->param->wx
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: s->param->line_size) * ((is_ccd_grayscale (s)) ? 3 : 1);
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}
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static int
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send_scan_param (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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uint8_t *data;
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data = pixma_newcmd (&mp->cb, cmd_scan_param, 0x2e, 0);
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pixma_set_be16 (s->param->xdpi | 0x8000, data + 0x04);
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pixma_set_be16 (s->param->ydpi | 0x8000, data + 0x06);
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pixma_set_be32 (s->param->x, data + 0x08);
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pixma_set_be32 (s->param->y, data + 0x0c);
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pixma_set_be32 (mp->raw_width, data + 0x10);
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pixma_set_be32 (mp->raw_height, data + 0x14);
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data[0x18] = 8; /* 8 = color, 4 = grayscale(?) */
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/* GH: No, there is no grayscale for CCD devices, Windows shows same */
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data[0x19] = s->param->depth * ((is_ccd_grayscale (s)) ? 3 : s->param->channels); /* bits per pixel */
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data[0x20] = 0xff;
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data[0x23] = 0x81;
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data[0x26] = 0x02;
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data[0x27] = 0x01;
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data[0x29] = mp->monochrome ? 0 : 1;
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return pixma_exec (s, &mp->cb);
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}
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static int
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calibrate (pixma_t * s)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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return pixma_exec_short_cmd (s, &mp->cb, cmd_calibrate);
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}
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static int
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calibrate_cs (pixma_t * s)
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{
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/*SIM*/ check_status (s);
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return calibrate (s);
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}
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static int
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request_image_block_ex (pixma_t * s, unsigned *size, uint8_t * info,
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unsigned flag)
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{
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mp750_t *mp = (mp750_t *) s->subdriver;
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int error;
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memset (mp->cb.buf, 0, 10);
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pixma_set_be16 (cmd_read_image, mp->cb.buf);
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mp->cb.buf[7] = *size >> 8;
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mp->cb.buf[8] = 4 | flag;
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mp->cb.reslen = pixma_cmd_transaction (s, mp->cb.buf, 10, mp->cb.buf, 6);
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mp->cb.expected_reslen = 0;
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error = pixma_check_result (&mp->cb);
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if (error >= 0)
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{
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if (mp->cb.reslen == 6)
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{
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*info = mp->cb.buf[2];
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*size = pixma_get_be16 (mp->cb.buf + 4);
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}
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else
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{
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error = PIXMA_EPROTO;
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}
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}
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return error;
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}
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static int
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request_image_block (pixma_t * s, unsigned *size, uint8_t * info)
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{
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return request_image_block_ex (s, size, info, 0);
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}
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static int
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request_image_block2 (pixma_t * s, uint8_t * info)
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{
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unsigned temp = 0;
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return request_image_block_ex (s, &temp, info, 0x20);
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}
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static int
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read_image_block (pixma_t * s, uint8_t * data)
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{
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int count, temp;
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count = pixma_read (s->io, data, IMAGE_BLOCK_SIZE);
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if (count < 0)
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return count;
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if (count == IMAGE_BLOCK_SIZE)
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{
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int error = pixma_read (s->io, &temp, 0);
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if (error < 0)
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{
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PDBG (pixma_dbg
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(1, "WARNING: reading zero-length packet failed %d\n", error));
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}
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}
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return count;
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}
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static int
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read_error_info (pixma_t * s, void *buf, unsigned size)
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{
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unsigned len = 16;
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mp750_t *mp = (mp750_t *) s->subdriver;
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uint8_t *data;
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int error;
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data = pixma_newcmd (&mp->cb, cmd_error_info, 0, len);
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error = pixma_exec (s, &mp->cb);
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if (error >= 0 && buf)
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{
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if (len < size)
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size = len;
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/* NOTE: I've absolutely no idea what the returned data mean. */
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memcpy (buf, data, size);
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error = len;
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}
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return error;
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}
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static int
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send_time (pixma_t * s)
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{
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/* TODO: implement send_time() */
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UNUSED (s);
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PDBG (pixma_dbg (3, "send_time() is not yet implemented.\n"));
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return 0;
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}
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static int
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handle_interrupt (pixma_t * s, int timeout)
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{
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int error;
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uint8_t intr[16];
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error = pixma_wait_interrupt (s->io, intr, sizeof (intr), timeout);
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if (error == PIXMA_ETIMEDOUT)
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return 0;
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if (error < 0)
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return error;
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if (error != 16)
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{
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PDBG (pixma_dbg (1, "WARNING: unexpected interrupt packet length %d\n",
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error));
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return PIXMA_EPROTO;
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}
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if (intr[10] & 0x40)
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send_time (s);
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if (intr[12] & 0x40)
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query_status (s);
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if (intr[15] & 1)
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s->events = PIXMA_EV_BUTTON2; /* b/w scan */
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if (intr[15] & 2)
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s->events = PIXMA_EV_BUTTON1; /* color scan */
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return 1;
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}
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static void
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check_status (pixma_t * s)
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{
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while (handle_interrupt (s, 0) > 0);
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}
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static int
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step1 (pixma_t * s)
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{
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int error, tmo;
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error = activate (s, 0);
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if (error < 0)
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return error;
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error = query_status (s);
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if (error < 0)
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return error;
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if (s->param->source == PIXMA_SOURCE_ADF && !has_paper (s))
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return PIXMA_ENO_PAPER;
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error = activate_cs (s, 0);
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/*SIM*/ if (error < 0)
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return error;
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error = activate_cs (s, 0x20);
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if (error < 0)
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return error;
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tmo = 60;
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error = calibrate_cs (s);
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while (error == PIXMA_EBUSY && --tmo >= 0)
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{
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if (s->cancel)
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return PIXMA_ECANCELED;
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PDBG (pixma_dbg
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(2, "Scanner is busy. Timed out in %d sec.\n", tmo + 1));
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pixma_sleep (1000000);
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error = calibrate_cs (s);
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}
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return error;
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}
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static void
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shift_rgb (const uint8_t * src, unsigned pixels,
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int sr, int sg, int sb, int stripe_shift,
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int line_size, uint8_t * dst)
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{
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unsigned st;
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for (; pixels != 0; pixels--)
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{
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st = (pixels % 2 == 0) ? -2 * stripe_shift * line_size : 0;
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*(dst++ + sr + st) = *src++;
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*(dst++ + sg + st) = *src++;
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*(dst++ + sb + st) = *src++;
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}
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}
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static uint8_t *
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rgb_to_gray (uint8_t * gptr, const uint8_t * cptr, unsigned pixels, unsigned c)
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{
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unsigned i, j, g;
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/* gptr: destination gray scale buffer */
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/* cptr: source color scale buffer */
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/* c: 3 for 3-channel single-byte data, 6 for double-byte data */
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for (i=0; i < pixels; i++)
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{
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for (j = 0, g = 0; j < 3; j++)
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{
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g += *cptr++;
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if (c == 6) g += (*cptr++ << 8);
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}
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g /= 3;
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*gptr++ = g;
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if (c == 6) *gptr++ = (g >> 8);
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}
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return gptr;
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}
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static int
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calc_component_shifting (pixma_t * s)
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{
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switch (s->cfg->pid)
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{
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case MP760_PID:
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switch (s->param->ydpi)
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{
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case 300:
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return 3;
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case 600:
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return 6;
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default:
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return s->param->ydpi / 75;
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}
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/* never reached */
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break;
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case MP750_PID:
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case MP780_PID:
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default:
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return 2 * s->param->ydpi / 75;
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}
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}
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static void
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workaround_first_command (pixma_t * s)
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{
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/* FIXME: Send a dummy command because the device doesn't response to the
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first command that is sent directly after the USB interface has been
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set up. Why? USB isn't set up properly? */
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uint8_t cmd[10];
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int error;
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if (s->cfg->pid == MP750_PID)
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return; /* MP750 doesn't have this problem(?) */
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PDBG (pixma_dbg
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(1,
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"Work-around for the problem: device doesn't response to the first command.\n"));
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memset (cmd, 0, sizeof (cmd));
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pixma_set_be16 (cmd_calibrate, cmd);
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error = pixma_write (s->io, cmd, 10);
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if (error != 10)
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{
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if (error < 0)
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{
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PDBG (pixma_dbg
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(1, " Sending a dummy command failed: %s\n",
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pixma_strerror (error)));
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}
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else
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{
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PDBG (pixma_dbg
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(1, " Sending a dummy command failed: count = %d\n", error));
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}
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return;
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}
|
|
error = pixma_read (s->io, cmd, sizeof (cmd));
|
|
if (error >= 0)
|
|
{
|
|
PDBG (pixma_dbg
|
|
(1, " Got %d bytes response from a dummy command.\n", error));
|
|
}
|
|
else
|
|
{
|
|
PDBG (pixma_dbg
|
|
(1, " Reading response of a dummy command failed: %s\n",
|
|
pixma_strerror (error)));
|
|
}
|
|
}
|
|
|
|
static int
|
|
mp750_open (pixma_t * s)
|
|
{
|
|
mp750_t *mp;
|
|
uint8_t *buf;
|
|
|
|
mp = (mp750_t *) calloc (1, sizeof (*mp));
|
|
if (!mp)
|
|
return PIXMA_ENOMEM;
|
|
|
|
buf = (uint8_t *) malloc (CMDBUF_SIZE);
|
|
if (!buf)
|
|
{
|
|
free (mp);
|
|
return PIXMA_ENOMEM;
|
|
}
|
|
|
|
s->subdriver = mp;
|
|
mp->state = state_idle;
|
|
|
|
/* ofs: 0 1 2 3 4 5 6 7 8 9
|
|
cmd: cmd1 cmd2 00 00 00 00 00 00 00 00
|
|
data length-^^^^^ => cmd_len_field_ofs
|
|
|--------- cmd_header_len --------|
|
|
|
|
res: res1 res2
|
|
|---------| res_header_len
|
|
*/
|
|
mp->cb.buf = buf;
|
|
mp->cb.size = CMDBUF_SIZE;
|
|
mp->cb.res_header_len = 2;
|
|
mp->cb.cmd_header_len = 10;
|
|
mp->cb.cmd_len_field_ofs = 7;
|
|
|
|
handle_interrupt (s, 200);
|
|
workaround_first_command (s);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
mp750_close (pixma_t * s)
|
|
{
|
|
mp750_t *mp = (mp750_t *) s->subdriver;
|
|
|
|
mp750_finish_scan (s);
|
|
free (mp->cb.buf);
|
|
free (mp);
|
|
s->subdriver = NULL;
|
|
}
|
|
|
|
static int
|
|
mp750_check_param (pixma_t * s, pixma_scan_param_t * sp)
|
|
{
|
|
unsigned raw_width;
|
|
|
|
UNUSED (s);
|
|
|
|
sp->depth = 8; /* FIXME: Does MP750 supports other depth? */
|
|
|
|
/* GH: my implementation */
|
|
/* if ((sp->channels == 3) || (is_ccd_grayscale (s)))
|
|
raw_width = ALIGN_SUP (sp->w, 4);
|
|
else
|
|
raw_width = ALIGN_SUP (sp->w, 12);*/
|
|
|
|
/* the above code gives segmentation fault?!? why... it seems to work in the mp750_scan function */
|
|
raw_width = ALIGN_SUP (sp->w, 4);
|
|
|
|
/*sp->line_size = raw_width * sp->channels;*/
|
|
sp->line_size = raw_width * sp->channels * (sp->depth / 8); /* no cropping? */
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mp750_scan (pixma_t * s)
|
|
{
|
|
mp750_t *mp = (mp750_t *) s->subdriver;
|
|
int error;
|
|
uint8_t *buf;
|
|
unsigned size, dpi, spare;
|
|
|
|
dpi = s->param->ydpi;
|
|
/* add a stripe shift for 2400dpi */
|
|
mp->stripe_shift = (dpi == 2400) ? 4 : 0;
|
|
|
|
if (mp->state != state_idle)
|
|
return PIXMA_EBUSY;
|
|
|
|
/* clear interrupt packets buffer */
|
|
while (handle_interrupt (s, 0) > 0)
|
|
{
|
|
}
|
|
|
|
/* if (s->param->channels == 1)
|
|
mp->raw_width = ALIGN_SUP (s->param->w, 12);
|
|
else
|
|
mp->raw_width = ALIGN_SUP (s->param->w, 4);*/
|
|
|
|
/* change to use CCD grayscale mode --- why does this give segmentation error at runtime in mp750_check_param? */
|
|
if ((s->param->channels == 3) || (is_ccd_grayscale (s)))
|
|
mp->raw_width = ALIGN_SUP (s->param->w, 4);
|
|
else
|
|
mp->raw_width = ALIGN_SUP (s->param->w, 12);
|
|
/* not sure about MP750, but there is no need for aligning at 12 for the MP760/770, MP780/790 since always use CCD color mode */
|
|
|
|
/* modify for stripe shift */
|
|
spare = 2 * calc_component_shifting (s) + 2 * mp->stripe_shift; /* FIXME: or maybe (2*... + 1)? */
|
|
mp->raw_height = s->param->h + spare;
|
|
PDBG (pixma_dbg (3, "raw_width=%u raw_height=%u dpi=%u\n",
|
|
mp->raw_width, mp->raw_height, dpi));
|
|
|
|
/* PDBG (pixma_dbg (4, "line_size=%"PRIu64"\n",s->param->line_size)); */
|
|
|
|
mp->line_size = get_cis_ccd_line_size (s); /* scanner hardware line_size multiplied by 3 for CCD grayscale */
|
|
|
|
size = 8 + 2 * IMAGE_BLOCK_SIZE + spare * mp->line_size;
|
|
buf = (uint8_t *) malloc (size);
|
|
if (!buf)
|
|
return PIXMA_ENOMEM;
|
|
mp->buf = buf;
|
|
mp->rawimg = buf;
|
|
mp->imgbuf_ofs = spare * mp->line_size;
|
|
mp->imgcol = mp->rawimg + IMAGE_BLOCK_SIZE + 8; /* added to make rgb->gray */
|
|
mp->img = mp->rawimg + IMAGE_BLOCK_SIZE + 8;
|
|
mp->imgbuf_len = IMAGE_BLOCK_SIZE + mp->imgbuf_ofs;
|
|
mp->rawimg_left = 0;
|
|
mp->last_block_size = 0;
|
|
mp->shifted_bytes = -(int) mp->imgbuf_ofs;
|
|
|
|
error = step1 (s);
|
|
if (error >= 0)
|
|
error = start_session (s);
|
|
if (error >= 0)
|
|
mp->state = state_warmup;
|
|
if (error >= 0)
|
|
error = select_source (s);
|
|
if (error >= 0)
|
|
error = send_scan_param (s);
|
|
if (error < 0)
|
|
{
|
|
mp750_finish_scan (s);
|
|
return error;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
mp750_fill_buffer (pixma_t * s, pixma_imagebuf_t * ib)
|
|
{
|
|
mp750_t *mp = (mp750_t *) s->subdriver;
|
|
int error;
|
|
uint8_t info;
|
|
unsigned block_size, bytes_received, n;
|
|
int shift[3], base_shift;
|
|
int c;
|
|
|
|
c = ((is_ccd_grayscale (s)) ? 3 : s->param->channels) * s->param->depth / 8; /* single-byte or double-byte data */
|
|
|
|
if (mp->state == state_warmup)
|
|
{
|
|
int tmo = 60;
|
|
|
|
query_status (s);
|
|
check_status (s);
|
|
/*SIM*/ while (!is_calibrated (s) && --tmo >= 0)
|
|
{
|
|
if (s->cancel)
|
|
return PIXMA_ECANCELED;
|
|
if (handle_interrupt (s, 1000) > 0)
|
|
{
|
|
block_size = 0;
|
|
error = request_image_block (s, &block_size, &info);
|
|
/*SIM*/ if (error < 0)
|
|
return error;
|
|
}
|
|
}
|
|
if (tmo < 0)
|
|
{
|
|
PDBG (pixma_dbg (1, "WARNING: Timed out waiting for calibration\n"));
|
|
return PIXMA_ETIMEDOUT;
|
|
}
|
|
pixma_sleep (100000);
|
|
query_status (s);
|
|
if (is_warming_up (s) || !is_calibrated (s))
|
|
{
|
|
PDBG (pixma_dbg (1, "WARNING: Wrong status: wup=%d cal=%d\n",
|
|
is_warming_up (s), is_calibrated (s)));
|
|
return PIXMA_EPROTO;
|
|
}
|
|
block_size = 0;
|
|
request_image_block (s, &block_size, &info);
|
|
/*SIM*/ mp->state = state_scanning;
|
|
mp->last_block = 0;
|
|
}
|
|
|
|
/* TODO: Move to other place, values are constant. */
|
|
base_shift = calc_component_shifting (s) * mp->line_size;
|
|
if (s->param->source == PIXMA_SOURCE_ADF)
|
|
{
|
|
shift[0] = 0;
|
|
shift[1] = -base_shift;
|
|
shift[2] = -2 * base_shift;
|
|
}
|
|
else
|
|
{
|
|
shift[0] = -2 * base_shift;
|
|
shift[1] = -base_shift;
|
|
shift[2] = 0;
|
|
}
|
|
|
|
do
|
|
{
|
|
if (mp->last_block_size > 0)
|
|
{
|
|
block_size = mp->imgbuf_len - mp->last_block_size;
|
|
memcpy (mp->img, mp->img + mp->last_block_size, block_size);
|
|
}
|
|
|
|
do
|
|
{
|
|
if (s->cancel)
|
|
return PIXMA_ECANCELED;
|
|
if (mp->last_block)
|
|
{
|
|
/* end of image */
|
|
info = mp->last_block;
|
|
if (info != 0x38)
|
|
{
|
|
query_status (s);
|
|
/*SIM*/ while ((info & 0x28) != 0x28)
|
|
{
|
|
pixma_sleep (10000);
|
|
error = request_image_block2 (s, &info);
|
|
if (s->cancel)
|
|
return PIXMA_ECANCELED; /* FIXME: Is it safe to cancel here? */
|
|
if (error < 0)
|
|
return error;
|
|
}
|
|
}
|
|
mp->needs_abort = (info != 0x38);
|
|
mp->last_block = info;
|
|
mp->state = state_finished;
|
|
return 0;
|
|
}
|
|
|
|
check_status (s);
|
|
/*SIM*/ while (handle_interrupt (s, 1) > 0);
|
|
/*SIM*/ block_size = IMAGE_BLOCK_SIZE;
|
|
error = request_image_block (s, &block_size, &info);
|
|
if (error < 0)
|
|
{
|
|
if (error == PIXMA_ECANCELED)
|
|
read_error_info (s, NULL, 0);
|
|
return error;
|
|
}
|
|
mp->last_block = info;
|
|
if ((info & ~0x38) != 0)
|
|
{
|
|
PDBG (pixma_dbg (1, "WARNING: Unknown info byte %x\n", info));
|
|
}
|
|
if (block_size == 0)
|
|
{
|
|
/* no image data at this moment. */
|
|
pixma_sleep (10000);
|
|
}
|
|
}
|
|
while (block_size == 0);
|
|
|
|
error = read_image_block (s, mp->rawimg + mp->rawimg_left);
|
|
if (error < 0)
|
|
{
|
|
mp->state = state_transfering;
|
|
return error;
|
|
}
|
|
bytes_received = error;
|
|
PASSERT (bytes_received == block_size);
|
|
|
|
/* TODO: simplify! */
|
|
mp->rawimg_left += bytes_received;
|
|
n = mp->rawimg_left / 3;
|
|
/* n = number of pixels in the buffer? */
|
|
|
|
/* Color to Grayscale converion for CCD sensor */
|
|
if (is_ccd_grayscale (s)) {
|
|
shift_rgb (mp->rawimg, n, shift[0], shift[1], shift[2], mp->stripe_shift, mp->line_size,
|
|
mp->imgcol + mp->imgbuf_ofs);
|
|
/* dst: img, src: imgcol */
|
|
rgb_to_gray (mp->img, mp->imgcol, n, c); /* cropping occurs later? */
|
|
PDBG (pixma_dbg (4, "*fill_buffer: did grayscale conversion \n"));
|
|
}
|
|
/* Color image processing */
|
|
else {
|
|
shift_rgb (mp->rawimg, n, shift[0], shift[1], shift[2], mp->stripe_shift, mp->line_size,
|
|
mp->img + mp->imgbuf_ofs);
|
|
PDBG (pixma_dbg (4, "*fill_buffer: no grayscale conversion---keep color \n"));
|
|
}
|
|
|
|
/* entering remaining unprocessed bytes after last complete pixel into mp->rawimg buffer -- no influence on mp->img */
|
|
n *= 3;
|
|
mp->shifted_bytes += n;
|
|
mp->rawimg_left -= n; /* rawimg_left = 0, 1 or 2 bytes left in the buffer. */
|
|
mp->last_block_size = n;
|
|
memcpy (mp->rawimg, mp->rawimg + n, mp->rawimg_left);
|
|
|
|
}
|
|
while (mp->shifted_bytes <= 0);
|
|
|
|
if ((unsigned) mp->shifted_bytes < mp->last_block_size)
|
|
{
|
|
if (is_ccd_grayscale (s))
|
|
ib->rptr = mp->img + mp->last_block_size/3 - mp->shifted_bytes/3; /* testing---works OK */
|
|
else
|
|
ib->rptr = mp->img + mp->last_block_size - mp->shifted_bytes;
|
|
}
|
|
else
|
|
ib->rptr = mp->img;
|
|
if (is_ccd_grayscale (s))
|
|
ib->rend = mp->img + mp->last_block_size/3; /* testing---works OK */
|
|
else
|
|
ib->rend = mp->img + mp->last_block_size;
|
|
return ib->rend - ib->rptr;
|
|
}
|
|
|
|
static void
|
|
mp750_finish_scan (pixma_t * s)
|
|
{
|
|
int error;
|
|
mp750_t *mp = (mp750_t *) s->subdriver;
|
|
|
|
switch (mp->state)
|
|
{
|
|
case state_transfering:
|
|
drain_bulk_in (s);
|
|
/* fall through */
|
|
case state_scanning:
|
|
case state_warmup:
|
|
error = abort_session (s);
|
|
if (error == PIXMA_ECANCELED)
|
|
read_error_info (s, NULL, 0);
|
|
/* fall through */
|
|
case state_finished:
|
|
if (s->param->source == PIXMA_SOURCE_FLATBED)
|
|
{
|
|
/*SIM*/ query_status (s);
|
|
if (abort_session (s) == PIXMA_ECANCELED)
|
|
{
|
|
read_error_info (s, NULL, 0);
|
|
query_status (s);
|
|
}
|
|
}
|
|
query_status (s);
|
|
/*SIM*/ activate (s, 0);
|
|
if (mp->needs_abort)
|
|
{
|
|
mp->needs_abort = 0;
|
|
abort_session (s);
|
|
}
|
|
free (mp->buf);
|
|
mp->buf = mp->rawimg = NULL;
|
|
mp->state = state_idle;
|
|
/* fall through */
|
|
case state_idle:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
mp750_wait_event (pixma_t * s, int timeout)
|
|
{
|
|
/* FIXME: timeout is not correct. See usbGetCompleteUrbNoIntr() for
|
|
* instance. */
|
|
while (s->events == 0 && handle_interrupt (s, timeout) > 0)
|
|
{
|
|
}
|
|
}
|
|
|
|
static int
|
|
mp750_get_status (pixma_t * s, pixma_device_status_t * status)
|
|
{
|
|
int error;
|
|
|
|
error = query_status (s);
|
|
if (error < 0)
|
|
return error;
|
|
status->hardware = PIXMA_HARDWARE_OK;
|
|
status->adf = (has_paper (s)) ? PIXMA_ADF_OK : PIXMA_ADF_NO_PAPER;
|
|
status->cal =
|
|
(is_calibrated (s)) ? PIXMA_CALIBRATION_OK : PIXMA_CALIBRATION_OFF;
|
|
status->lamp = (is_warming_up (s)) ? PIXMA_LAMP_WARMING_UP : PIXMA_LAMP_OK;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static const pixma_scan_ops_t pixma_mp750_ops = {
|
|
mp750_open,
|
|
mp750_close,
|
|
mp750_scan,
|
|
mp750_fill_buffer,
|
|
mp750_finish_scan,
|
|
mp750_wait_event,
|
|
mp750_check_param,
|
|
mp750_get_status
|
|
};
|
|
|
|
#define DEVICE(name, model, pid, dpi, cap) { \
|
|
name, /* name */ \
|
|
model, /* model */ \
|
|
0x04a9, pid, /* vid pid */ \
|
|
0, /* iface */ \
|
|
&pixma_mp750_ops, /* ops */ \
|
|
dpi, 2*(dpi), /* xdpi, ydpi */ \
|
|
0, 0, /* adftpu_min_dpi & adftpu_max_dpi not used in this subdriver */ \
|
|
0, 0, /* tpuir_min_dpi & tpuir_max_dpi not used in this subdriver */ \
|
|
637, 877, /* width, height */ \
|
|
PIXMA_CAP_GRAY|PIXMA_CAP_EVENTS|cap \
|
|
}
|
|
|
|
const pixma_config_t pixma_mp750_devices[] = {
|
|
DEVICE ("Canon PIXMA MP750", "MP750", MP750_PID, 2400, PIXMA_CAP_CCD | PIXMA_CAP_ADF),
|
|
DEVICE ("Canon PIXMA MP760/770", "MP760/770", MP760_PID, 2400, PIXMA_CAP_CCD | PIXMA_CAP_TPU),
|
|
DEVICE ("Canon PIXMA MP780/790", "MP780/790", MP780_PID, 2400, PIXMA_CAP_CCD | PIXMA_CAP_ADF),
|
|
DEVICE (NULL, NULL, 0, 0, 0)
|
|
};
|