kopia lustrzana https://gitlab.com/sane-project/backends
746 wiersze
18 KiB
C
746 wiersze
18 KiB
C
/* SANE - Scanner Access Now Easy.
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Copyright (C) 2006 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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/* test cases
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1. short USB packet (must be no -ETIMEDOUT)
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2. cancel using button on the printer (look for abort command)
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3. start scan while busy (status 0x1414)
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4. cancel using ctrl-c (must send abort command)
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*/
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#include "../include/sane/config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h> /* localtime(C90) */
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#include <errno.h> /* POSIX */
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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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#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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/* Size of the command buffer should be multiple of wMaxPacketLength and
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greater than 4096+24.
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4096 = size of gamma table. 24 = header + checksum */
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#define IMAGE_BLOCK_SIZE (512*1024)
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#define CMDBUF_SIZE (4096 + 24)
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#define DEFAULT_GAMMA 1.0
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enum mp150_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 mp150_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_gamma = 0xee20,
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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_error_info = 0xff20,
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cmd_e920 = 0xe920 /* seen in MP800 */
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};
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typedef struct mp150_t
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{
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enum mp150_state_t state;
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pixma_cmdbuf_t cb;
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uint8_t *imgbuf;
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uint8_t current_status[12];
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unsigned last_block:1;
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} mp150_t;
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/*
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STAT: 0x0606 = ok,
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0x1515 = failed (-ECANCELED),
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0x1414 = busy (-EBUSY)
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Transaction scheme
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1. command_header/data | result_header
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2. command_header | result_header/data
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3. command_header | result_header/image_data
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- data has checksum in the last byte.
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- image_data has no checksum.
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- data and image_data begins in the same USB packet as
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command_header or result_header.
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command format #1:
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u16be cmd
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u8[6] 0
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u8[4] 0
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u32be PLEN parameter length
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u8[PLEN-1] parameter
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u8 parameter check sum
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result:
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u16be STAT
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u8 0
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u8 0 or 0x21 if STAT == 0x1414
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u8[4] 0
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command format #2:
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u16be cmd
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u8[6] 0
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u8[4] 0
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u32be RLEN result length
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result:
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u16be STAT
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u8[6] 0
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u8[RLEN-1] result
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u8 result check sum
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command format #3: (only used by read_image_block)
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u16be 0xd420
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u8[6] 0
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u8[4] 0
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u32be max. block size + 8
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result:
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u16be STAT
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u8[6] 0
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u8 block info bitfield: 0x8 = end of scan, 0x10 = no more paper, 0x20 = no more data
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u8[3] 0
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u32be ILEN image data size
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u8[ILEN] image data
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*/
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static void mp150_finish_scan (pixma_t * s);
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static int
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is_calibrated (pixma_t * s)
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{
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mp150_t *mp = (mp150_t *) s->subdriver;
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return (mp->current_status[8] == 1);
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}
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static int
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has_paper (pixma_t * s)
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{
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mp150_t *mp = (mp150_t *) s->subdriver;
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return (mp->current_status[1] == 0); /* FIXME: correct? */
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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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mp150_t *mp = (mp150_t *) s->subdriver;
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while (pixma_read (s->io, mp->imgbuf, 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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mp150_t *mp = (mp150_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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send_cmd_e920 (pixma_t * s)
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{
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mp150_t *mp = (mp150_t *) s->subdriver;
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return pixma_exec_short_cmd (s, &mp->cb, cmd_e920);
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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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mp150_t *mp = (mp150_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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mp150_t *mp = (mp150_t *) s->subdriver;
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uint8_t *data;
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data = pixma_newcmd (&mp->cb, cmd_select_source, 12, 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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send_gamma_table (pixma_t * s)
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{
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mp150_t *mp = (mp150_t *) s->subdriver;
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const uint8_t *lut = s->param->gamma_table;
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uint8_t *data;
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data = pixma_newcmd (&mp->cb, cmd_gamma, 4096 + 8, 0);
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data[0] = (s->param->channels == 3) ? 0x10 : 0x01;
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pixma_set_be16 (0x1004, data + 2);
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if (lut)
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memcpy (data + 4, lut, 4096);
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else
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pixma_fill_gamma_table (DEFAULT_GAMMA, data + 4, 4096);
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return pixma_exec (s, &mp->cb);
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}
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static unsigned
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calc_raw_width (const pixma_scan_param_t * param)
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{
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unsigned raw_width;
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/* NOTE: Actually, we can send arbitary width to MP150. Lines returned
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are always padded to multiple of 4 or 12 pixels. Is this valid for
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other models, too? */
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if (param->channels == 1)
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raw_width = ALIGN (param->w, 12);
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else
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raw_width = ALIGN (param->w, 4);
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return raw_width;
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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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mp150_t *mp = (mp150_t *) s->subdriver;
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uint8_t *data;
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unsigned raw_width = calc_raw_width (s->param);
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data = pixma_newcmd (&mp->cb, cmd_scan_param, 0x30, 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 (raw_width, data + 0x10);
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pixma_set_be32 (s->param->h, data + 0x14);
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data[0x18] = (s->param->channels == 1) ? 0x04 : 0x08;
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data[0x19] = s->param->channels * s->param->depth; /* 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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return pixma_exec (s, &mp->cb);
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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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mp150_t *mp = (mp150_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 busy=%u\n",
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data[1], data[8], data[7], data[9]));
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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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/* Why does a scanner need a time? */
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time_t now;
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struct tm *t;
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uint8_t *data;
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mp150_t *mp = (mp150_t *) s->subdriver;
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data = pixma_newcmd (&mp->cb, cmd_time, 20, 0);
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pixma_get_time (&now, NULL);
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t = localtime (&now);
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snprintf ((char *) data, 16,
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"%02d/%02d/%02d %02d:%02d",
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t->tm_year % 100, t->tm_mon + 1, t->tm_mday,
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t->tm_hour, t->tm_min);
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PDBG (pixma_dbg (3, "Sending time: '%s'\n", (char *) data));
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return pixma_exec (s, &mp->cb);
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}
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/* TODO: Simplify this function. Read the whole data packet in one shot. */
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static int
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read_image_block (pixma_t * s, uint8_t * header, uint8_t * data)
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{
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static const uint8_t cmd[16] = /* 0xd420 cmd */
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{ 0xd4, 0x20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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IMAGE_BLOCK_SIZE / 65536, 0, 8
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};
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mp150_t *mp = (mp150_t *) s->subdriver;
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const int hlen = 8 + 8;
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int error, datalen;
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mp->state = state_transfering;
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mp->cb.reslen =
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pixma_cmd_transaction (s, cmd, sizeof (cmd), mp->cb.buf, 512);
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datalen = mp->cb.reslen;
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if (datalen < 0)
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return datalen;
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memcpy (header, mp->cb.buf, hlen);
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if (datalen >= hlen)
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{
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datalen -= hlen;
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memcpy (data, mp->cb.buf + hlen, datalen);
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data += datalen;
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if (mp->cb.reslen == 512)
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{
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error = pixma_read (s->io, data, IMAGE_BLOCK_SIZE - 512 + hlen);
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if (error < 0)
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return error;
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datalen += error;
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}
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}
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mp->state = state_scanning;
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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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return error;
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if (mp->cb.reslen < hlen)
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return -EPROTO;
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return datalen;
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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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mp150_t *mp = (mp150_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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/*
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handle_interrupt() waits until it receives an interrupt packet or times out.
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It calls send_time() and query_status() if necessary. Therefore, make sure
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that handle_interrupt() is only called from a safe context for send_time()
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and query_status().
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Returns:
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0 timed out
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1 interrupt packet received
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-EINTR interrupted by signal
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<0 error
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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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uint8_t buf[16];
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int len;
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len = pixma_wait_interrupt (s->io, buf, sizeof (buf), timeout);
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if (len == -ETIMEDOUT)
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return 0;
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if (len < 0)
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return len;
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if (len != 16)
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{
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PDBG (pixma_dbg (1, "WARNING:unexpected interrupt packet length %d\n",
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len));
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return -EPROTO;
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}
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/* More than one event can be reported at the same time. */
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if (buf[3] & 1)
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send_time (s);
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if (buf[9] & 2)
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query_status (s);
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if (buf[0] & 2)
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s->events = PIXMA_EV_BUTTON2 | buf[1]; /* b/w scan */
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if (buf[0] & 1)
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s->events = PIXMA_EV_BUTTON1 | buf[1]; /* color scan */
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return 1;
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}
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static int
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wait_until_ready (pixma_t * s)
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{
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int error, tmo = 60;
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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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while (!is_calibrated (s))
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{
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error = handle_interrupt (s, 1000);
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if (s->cancel)
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return -ECANCELED;
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if (error != -EINTR && error < 0)
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return error;
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if (--tmo == 0)
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{
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PDBG (pixma_dbg (1, "WARNING:Timed out in wait_until_ready()\n"));
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return -ETIMEDOUT;
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}
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#if 0
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/* If we use sanei_usb_*, we sometimes lose interrupts! So poll the
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* status here. */
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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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#endif
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}
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return 0;
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}
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static int
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mp150_open (pixma_t * s)
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{
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mp150_t *mp;
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uint8_t *buf;
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mp = (mp150_t *) calloc (1, sizeof (*mp));
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if (!mp)
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return -ENOMEM;
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buf = (uint8_t *) malloc (CMDBUF_SIZE + IMAGE_BLOCK_SIZE);
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if (!buf)
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{
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free (mp);
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return -ENOMEM;
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}
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s->subdriver = mp;
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mp->state = state_idle;
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mp->cb.buf = buf;
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mp->cb.size = CMDBUF_SIZE;
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mp->cb.res_header_len = 8;
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mp->cb.cmd_header_len = 16;
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mp->cb.cmd_len_field_ofs = 14;
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mp->imgbuf = buf + CMDBUF_SIZE;
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handle_interrupt (s, 200);
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return 0;
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}
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static void
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mp150_close (pixma_t * s)
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{
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mp150_t *mp = (mp150_t *) s->subdriver;
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mp150_finish_scan (s);
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free (mp->cb.buf);
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free (mp);
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s->subdriver = NULL;
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}
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static int
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mp150_check_param (pixma_t * s, pixma_scan_param_t * sp)
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{
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UNUSED (s);
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sp->depth = 8; /* MP150 only supports 8 bit per channel. */
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sp->line_size = calc_raw_width (sp) * sp->channels;
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return 0;
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}
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static int
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mp150_scan (pixma_t * s)
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{
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int error = 0, tmo;
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mp150_t *mp = (mp150_t *) s->subdriver;
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if (mp->state != state_idle)
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return -EBUSY;
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while (handle_interrupt (s, 0) > 0)
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{
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} /* clear interrupt packets buffer */
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if (s->param->source == PIXMA_SOURCE_ADF)
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{
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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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#ifndef NDEBUG
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pixma_dbg (1,
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"Support for ADF is untested. If it doesn't work, please set\n");
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pixma_dbg (1,
|
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"the debug level to 10 and send me debug messages for these\n");
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pixma_dbg (1, "2 cases:\n");
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pixma_dbg (1, " 1. no paper in ADF\n");
|
|
pixma_dbg (1, " 2. paper in ADF\n");
|
|
#endif
|
|
if (!has_paper (s))
|
|
return -ENODATA;
|
|
}
|
|
|
|
if (s->cfg->vid == 0x170d /*MP800 */ )
|
|
{
|
|
/* FIXME: What does this command do? */
|
|
error = send_cmd_e920 (s);
|
|
if (error == 0)
|
|
{
|
|
query_status (s);
|
|
}
|
|
if (error == -ECANCELED || error == -EBUSY)
|
|
{
|
|
PDBG (pixma_dbg (2, "cmd e920 returned %s\n", strerror (-error)));
|
|
query_status (s);
|
|
}
|
|
else
|
|
{
|
|
PDBG (pixma_dbg (1, "WARNING:cmd e920 failed %s\n",
|
|
strerror (-error)));
|
|
return error;
|
|
}
|
|
}
|
|
|
|
error = start_session (s);
|
|
tmo = 10;
|
|
while (error == -EBUSY && --tmo >= 0)
|
|
{
|
|
if (s->cancel)
|
|
{
|
|
error = -ECANCELED;
|
|
break;
|
|
}
|
|
PDBG (pixma_dbg
|
|
(2, "Scanner is busy. Timed out in %d sec.\n", tmo + 1));
|
|
pixma_sleep (1000000);
|
|
error = start_session (s);
|
|
}
|
|
if (error == -EBUSY || error == -ETIMEDOUT)
|
|
{
|
|
/* The scanner maybe hangs. We try to empty output buffer of the
|
|
* scanner and issue the cancel command. */
|
|
PDBG (pixma_dbg (2, "Scanner hangs? Sending abort_session command.\n"));
|
|
drain_bulk_in (s);
|
|
abort_session (s);
|
|
pixma_sleep (500000);
|
|
error = start_session (s);
|
|
}
|
|
if (error >= 0)
|
|
mp->state = state_warmup;
|
|
if (error >= 0)
|
|
error = select_source (s);
|
|
if (error >= 0)
|
|
error = send_gamma_table (s);
|
|
if (error >= 0)
|
|
error = send_scan_param (s);
|
|
if (error < 0)
|
|
{
|
|
mp150_finish_scan (s);
|
|
return error;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mp150_fill_buffer (pixma_t * s, pixma_imagebuf_t * ib)
|
|
{
|
|
int error;
|
|
mp150_t *mp = (mp150_t *) s->subdriver;
|
|
unsigned block_size, bytes_received;
|
|
uint8_t header[16];
|
|
|
|
if (mp->state == state_warmup)
|
|
{
|
|
error = wait_until_ready (s);
|
|
if (error < 0)
|
|
return error;
|
|
pixma_sleep (1500000); /* No need to wait, actually, but Window's driver
|
|
* waits 1.5 sec. */
|
|
mp->state = state_scanning;
|
|
mp->last_block = 0;
|
|
}
|
|
|
|
do
|
|
{
|
|
if (s->cancel)
|
|
return -ECANCELED;
|
|
if (mp->last_block)
|
|
{
|
|
/* end of image */
|
|
mp->state = state_finished;
|
|
return 0;
|
|
}
|
|
|
|
error = read_image_block (s, header, mp->imgbuf);
|
|
if (error < 0)
|
|
{
|
|
if (error == -ECANCELED)
|
|
{
|
|
/* NOTE: I see this in traffic logs but I don't know
|
|
its meaning. */
|
|
read_error_info (s, NULL, 0);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
bytes_received = error;
|
|
block_size = pixma_get_be32 (header + 12);
|
|
mp->last_block = ((header[8] & 0x28) == 0x28);
|
|
if ((header[8] & ~0x38) != 0)
|
|
{
|
|
PDBG (pixma_dbg (1, "WARNING: Unexpected result header\n"));
|
|
PDBG (pixma_hexdump (1, header, 16));
|
|
}
|
|
PASSERT (bytes_received == block_size);
|
|
|
|
if (block_size == 0)
|
|
{
|
|
/* no image data at this moment. */
|
|
pixma_sleep (10000);
|
|
}
|
|
}
|
|
while (block_size == 0);
|
|
|
|
ib->rptr = mp->imgbuf;
|
|
ib->rend = mp->imgbuf + bytes_received;
|
|
return ib->rend - ib->rptr;
|
|
}
|
|
|
|
static void
|
|
mp150_finish_scan (pixma_t * s)
|
|
{
|
|
int error;
|
|
mp150_t *mp = (mp150_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 < 0)
|
|
PDBG (pixma_dbg (1, "WARNING:abort_session() failed: %s\n",
|
|
strerror (-error)));
|
|
/* fall through */
|
|
case state_finished:
|
|
while (handle_interrupt (s, 0) > 0);
|
|
mp->state = state_idle;
|
|
/* fall through */
|
|
case state_idle:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
mp150_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
|
|
mp150_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;
|
|
return 0;
|
|
}
|
|
|
|
static const pixma_scan_ops_t pixma_mp150_ops = {
|
|
mp150_open,
|
|
mp150_close,
|
|
mp150_scan,
|
|
mp150_fill_buffer,
|
|
mp150_finish_scan,
|
|
mp150_wait_event,
|
|
mp150_check_param,
|
|
mp150_get_status
|
|
};
|
|
|
|
#define DEVICE(name, pid, dpi, cap) { \
|
|
name, /* name */ \
|
|
0x04a9, pid, /* vid pid */ \
|
|
0, /* iface */ \
|
|
&pixma_mp150_ops, /* ops */ \
|
|
dpi, 2*(dpi), /* xdpi, ydpi */ \
|
|
638, 877, /* width, height */ \
|
|
PIXMA_CAP_EASY_RGB|PIXMA_CAP_GRAY| \
|
|
PIXMA_CAP_GAMMA_TABLE|PIXMA_CAP_EVENTS|cap \
|
|
}
|
|
|
|
const pixma_config_t pixma_mp150_devices[] = {
|
|
DEVICE ("Canon PIXMA MP150", 0x1709, 1200, 0),
|
|
DEVICE ("Canon PIXMA MP170", 0x170a, 1200, 0),
|
|
DEVICE ("Canon PIXMA MP450", 0x170b, 1200, 0),
|
|
DEVICE ("Canon PIXMA MP500", 0x170c, 1200, 0),
|
|
DEVICE ("Canon PIXMA MP530", 0xffff, 1200,
|
|
PIXMA_CAP_ADF | PIXMA_CAP_EXPERIMENT),
|
|
DEVICE ("Canon PIXMA MP800", 0x170d, 2400, PIXMA_CAP_TPU),
|
|
DEVICE ("Canon PIXMA MP800R", 0xffff, 2400,
|
|
PIXMA_CAP_TPU | PIXMA_CAP_EXPERIMENT),
|
|
DEVICE ("Canon PIXMA MP830", 0x1713, 2400, PIXMA_CAP_ADF),
|
|
DEVICE (NULL, 0, 0, 0)
|
|
};
|