New upstream version 1.0.29upstream/1.0.29

1 files changed, 0 insertions, 979 deletions

diff --git a/backend/pixma_imageclass.c b/backend/pixma_imageclass.c
deleted file mode 100644
index 9301bc6..0000000
--- a/backend/pixma_imageclass.c
+++ /dev/null
@@ -1,979 +0,0 @@
-/* SANE - Scanner Access Now Easy.
-
-   Copyright (C) 2011-2019 Rolf Bensch <rolf at bensch hyphen online dot de>
-   Copyright (C) 2007-2009 Nicolas Martin, <nicols-guest at alioth dot debian dot org>
-   Copyright (C) 2008 Dennis Lou, dlou 99 at yahoo dot com
-
-   This file is part of the SANE package.
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-   MA 02111-1307, USA.
-
-   As a special exception, the authors of SANE give permission for
-   additional uses of the libraries contained in this release of SANE.
-
-   The exception is that, if you link a SANE library with other files
-   to produce an executable, this does not by itself cause the
-   resulting executable to be covered by the GNU General Public
-   License.  Your use of that executable is in no way restricted on
-   account of linking the SANE library code into it.
-
-   This exception does not, however, invalidate any other reasons why
-   the executable file might be covered by the GNU General Public
-   License.
-
-   If you submit changes to SANE to the maintainers to be included in
-   a subsequent release, you agree by submitting the changes that
-   those changes may be distributed with this exception intact.
-
-   If you write modifications of your own for SANE, it is your choice
-   whether to permit this exception to apply to your modifications.
-   If you do not wish that, delete this exception notice.
- */
-
-/*
- * imageCLASS backend based on pixma_mp730.c
- */
-
-#include "../include/sane/config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "pixma_rename.h"
-#include "pixma_common.h"
-#include "pixma_io.h"
-
-
-#ifdef __GNUC__
-# define UNUSED(v) (void) v
-#else
-# define UNUSED(v)
-#endif
-
-#define IMAGE_BLOCK_SIZE (0x80000)
-#define MAX_CHUNK_SIZE   (0x1000)
-#define MIN_CHUNK_SIZE   (0x0200)
-#define CMDBUF_SIZE 512
-
-#define MF4100_PID 0x26a3
-#define MF4600_PID 0x26b0
-#define MF4010_PID 0x26b4
-#define MF4200_PID 0x26b5
-#define MF4360_PID 0x26ec
-#define D480_PID   0x26ed
-#define MF4320_PID 0x26ee
-#define D420_PID   0x26ef
-#define MF3200_PID 0x2684
-#define MF6500_PID 0x2686
-/* generation 2 scanners (>=0x2707) */
-#define MF8300_PID 0x2708
-#define MF4500_PID 0x2736
-#define MF4410_PID 0x2737
-#define D550_PID   0x2738
-#define MF3010_PID 0x2759
-#define MF4570_PID 0x275a
-#define MF4800_PID 0x2773
-#define MF4700_PID 0x2774
-#define MF8200_PID 0x2779
-/* the following are all untested */
-#define MF5630_PID 0x264e
-#define MF5650_PID 0x264f
-#define MF8100_PID 0x2659
-#define MF5880_PID 0x26f9
-#define MF6680_PID 0x26fa
-#define MF8030_PID 0x2707
-#define IR1133_PID 0x2742
-#define MF5900_PID 0x2743
-#define D530_PID   0x2775
-#define MF8500_PID 0x277a
-#define MF6100_PID 0x278e
-#define MF820_PID  0x27a6
-#define MF220_PID  0x27a8
-#define MF210_PID  0x27a9
-#define MF620_PID  0x27b4
-#define MF410_PID  0x27c0
-#define MF510_PID  0x27c2
-#define MF230_PID  0x27d1
-#define MF240_PID  0x27d2
-#define MF630_PID  0x27e1
-#define MF634_PID  0x27e2
-#define MF730_PID  0x27e4
-#define MF731_PID  0x27e5
-#define D570_PID   0x27e8
-#define MF110_PID  0x27ed
-#define MF520_PID  0x27f0
-#define MF420_PID  0x27f1
-#define MF260_PID  0x27f4
-#define MF740_PID  0x27fb
-#define MF640_PID  0x27fe
-
-
-enum iclass_state_t
-{
-  state_idle,
-  state_warmup,			/* MF4200 always warm/calibrated; others? */
-  state_scanning,
-  state_finished
-};
-
-enum iclass_cmd_t
-{
-  cmd_start_session = 0xdb20,
-  cmd_select_source = 0xdd20,
-  cmd_scan_param = 0xde20,
-  cmd_status = 0xf320,
-  cmd_abort_session = 0xef20,
-  cmd_read_image  = 0xd420,
-  cmd_read_image2 = 0xd460,     /* New multifunctionals, such as MF4410 */
-  cmd_error_info = 0xff20,
-
-  cmd_activate = 0xcf60
-};
-
-typedef struct iclass_t
-{
-  enum iclass_state_t state;
-  pixma_cmdbuf_t cb;
-  unsigned raw_width;
-  uint8_t current_status[12];
-
-  uint8_t *buf, *blkptr, *lineptr;
-  unsigned buf_len, blk_len;
-
-  unsigned last_block;
-
-  uint8_t generation;           /* New multifunctionals are (generation == 2) */
-
-  uint8_t adf_state;            /* handle adf scanning */
-} iclass_t;
-
-
-static int is_scanning_from_adf (pixma_t * s)
-{
-  return (s->param->source == PIXMA_SOURCE_ADF
-          || s->param->source == PIXMA_SOURCE_ADFDUP);
-}
-
-static int is_scanning_from_adfdup (pixma_t * s)
-{
-  return (s->param->source == PIXMA_SOURCE_ADFDUP);
-}
-
-static void iclass_finish_scan (pixma_t * s);
-
-/* checksumming is sometimes different than pixmas */
-static int
-iclass_exec (pixma_t * s, pixma_cmdbuf_t * cb, char invcksum)
-{
-  if (cb->cmdlen > cb->cmd_header_len)
-    pixma_fill_checksum (cb->buf + cb->cmd_header_len,
-			 cb->buf + cb->cmdlen - 2);
-  cb->buf[cb->cmdlen - 1] = invcksum ? -cb->buf[cb->cmdlen - 2] : 0;
-  cb->reslen =
-    pixma_cmd_transaction (s, cb->buf, cb->cmdlen, cb->buf,
-			   cb->expected_reslen);
-  return pixma_check_result (cb);
-}
-
-static int
-has_paper (pixma_t * s)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  return ((mf->current_status[1] & 0x0f) == 0           /* allow 0x10 as ADF paper OK */
-          || mf->current_status[1] == 81);              /* allow 0x51 as ADF paper OK */
-}
-
-static int
-abort_session (pixma_t * s)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  return pixma_exec_short_cmd (s, &mf->cb, cmd_abort_session);
-}
-
-static int
-query_status (pixma_t * s)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  uint8_t *data;
-  int error;
-
-  data = pixma_newcmd (&mf->cb, cmd_status, 0, 12);
-  error = pixma_exec (s, &mf->cb);
-  if (error >= 0)
-    {
-      memcpy (mf->current_status, data, 12);
-      /*DBG (3, "Current status: paper=0x%02x cal=%u lamp=%u\n",
-	   data[1], data[8], data[7]);*/
-      PDBG (pixma_dbg (3, "Current status: paper=0x%02x cal=%u lamp=%u\n",
-		       data[1], data[8], data[7]));
-    }
-  return error;
-}
-
-static int
-activate (pixma_t * s, uint8_t x)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  uint8_t *data = pixma_newcmd (&mf->cb, cmd_activate, 10, 0);
-  data[0] = 1;
-  data[3] = x;
-  switch (s->cfg->pid)
-    {
-    case MF4200_PID:
-    case MF4600_PID:
-    case MF6500_PID:
-    case D480_PID:
-    case D420_PID:
-    case MF4360_PID:
-    case MF4100_PID:
-    case MF8300_PID:
-      return iclass_exec (s, &mf->cb, 1);
-      break;
-    default:
-      return pixma_exec (s, &mf->cb);
-    }
-}
-
-static int
-start_session (pixma_t * s)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  return pixma_exec_short_cmd (s, &mf->cb, cmd_start_session);
-}
-
-static int
-select_source (pixma_t * s)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  uint8_t *data = pixma_newcmd (&mf->cb, cmd_select_source, 10, 0);
-  data[0] = (is_scanning_from_adf(s)) ? 2 : 1;
-  /* special settings for MF6100 */
-  data[5] = is_scanning_from_adfdup(s) ? 3 : ((s->cfg->pid == MF6100_PID && s->param->source == PIXMA_SOURCE_ADF) ? 1 : 0);
-  switch (s->cfg->pid)
-    {
-    case MF4200_PID:
-    case MF4600_PID:
-    case MF6500_PID:
-    case D480_PID:
-    case D420_PID:
-    case MF4360_PID:
-    case MF4100_PID:
-    case MF8300_PID:
-      return iclass_exec (s, &mf->cb, 0);
-      break;
-    default:
-      return pixma_exec (s, &mf->cb);
-    }
-}
-
-static int
-send_scan_param (pixma_t * s)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  uint8_t *data;
-
-  data = pixma_newcmd (&mf->cb, cmd_scan_param, 0x2e, 0);
-  pixma_set_be16 (s->param->xdpi | 0x1000, data + 0x04);
-  pixma_set_be16 (s->param->ydpi | 0x1000, data + 0x06);
-  pixma_set_be32 (s->param->x, data + 0x08);
-  pixma_set_be32 (s->param->y, data + 0x0c);
-  pixma_set_be32 (mf->raw_width, data + 0x10);
-  pixma_set_be32 (s->param->h, data + 0x14);
-  data[0x18] = (s->param->channels == 1) ? 0x04 : 0x08;
-  data[0x19] = s->param->channels * ((s->param->depth == 1) ? 8 : s->param->depth);	/* bits per pixel */
-  data[0x1f] = 0x7f;
-  data[0x20] = 0xff;
-  data[0x23] = 0x81;
-  switch (s->cfg->pid)
-    {
-    case MF4200_PID:
-    case MF4600_PID:
-    case MF6500_PID:
-    case D480_PID:
-    case D420_PID:
-    case MF4360_PID:
-    case MF4100_PID:
-    case MF8300_PID:
-      return iclass_exec (s, &mf->cb, 0);
-      break;
-    default:
-      return pixma_exec (s, &mf->cb);
-    }
-}
-
-static int
-request_image_block (pixma_t * s, unsigned flag, uint8_t * info,
-		     unsigned * size, uint8_t * data, unsigned * datalen)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  int error;
-  unsigned expected_len;
-  const int hlen = 2 + 6;
-
-  memset (mf->cb.buf, 0, 11);
-  /* generation 2 scanners use cmd_read_image2.
-   * MF6100, ... are exceptions */
-  pixma_set_be16 (((mf->generation >= 2
-                    && s->cfg->pid != MF6100_PID) ? cmd_read_image2 : cmd_read_image), mf->cb.buf);
-  mf->cb.buf[8] = flag;
-  mf->cb.buf[10] = 0x06;
-  expected_len = (mf->generation >= 2 ||
-                  s->cfg->pid == MF4600_PID ||
-                  s->cfg->pid == MF6500_PID ||
-                  s->cfg->pid == MF8030_PID) ? 512 : hlen;
-  mf->cb.reslen = pixma_cmd_transaction (s, mf->cb.buf, 11, mf->cb.buf, expected_len);
-  if (mf->cb.reslen >= hlen)
-    {
-      *info = mf->cb.buf[2];
-      *size = pixma_get_be16 (mf->cb.buf + 6);    /* 16bit size */
-      error = 0;
-
-      if (mf->generation >= 2 ||
-          s->cfg->pid == MF4600_PID ||
-          s->cfg->pid == MF6500_PID ||
-          s->cfg->pid == MF8030_PID)
-        {                                         /* 32bit size */
-          *datalen = mf->cb.reslen - hlen;
-          *size = (*datalen + hlen == 512) ? pixma_get_be32 (mf->cb.buf + 4) - *datalen : *size;
-          memcpy (data, mf->cb.buf + hlen, *datalen);
-        }
-     PDBG (pixma_dbg (11, "*request_image_block***** size = %u *****\n", *size));
-    }
-  else
-    {
-       error = PIXMA_EPROTO;
-    }
-  return error;
-}
-
-static int
-read_image_block (pixma_t * s, uint8_t * data, unsigned size)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  int error;
-  unsigned maxchunksize, chunksize, count = 0;
-
-  maxchunksize = MAX_CHUNK_SIZE * ((mf->generation >= 2 ||
-                                    s->cfg->pid == MF4600_PID ||
-                                    s->cfg->pid == MF6500_PID ||
-                                    s->cfg->pid == MF8030_PID) ? 4 : 1);
-  while (size)
-    {
-      if (size >= maxchunksize)
-      	chunksize = maxchunksize;
-      else if (size < MIN_CHUNK_SIZE)
-      	chunksize = size;
-      else
-      	chunksize = size - (size % MIN_CHUNK_SIZE);
-      error = pixma_read (s->io, data, chunksize);
-      if (error < 0)
-      	return count;
-      count += error;
-      data += error;
-      size -= error;
-    }
-  return count;
-}
-
-static int
-read_error_info (pixma_t * s, void *buf, unsigned size)
-{
-  unsigned len = 16;
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  uint8_t *data;
-  int error;
-
-  data = pixma_newcmd (&mf->cb, cmd_error_info, 0, len);
-  switch (s->cfg->pid)
-    {
-    case MF4200_PID:
-    case MF4600_PID:
-    case MF6500_PID:
-    case D480_PID:
-    case D420_PID:
-    case MF4360_PID:
-    case MF4100_PID:
-    case MF8300_PID:
-      error = iclass_exec (s, &mf->cb, 0);
-      break;
-    default:
-      error = pixma_exec (s, &mf->cb);
-    }
-  if (error < 0)
-    return error;
-  if (buf && len < size)
-    {
-      size = len;
-      /* NOTE: I've absolutely no idea what the returned data mean. */
-      memcpy (buf, data, size);
-      error = len;
-    }
-  return error;
-}
-
-static int
-handle_interrupt (pixma_t * s, int timeout)
-{
-  uint8_t buf[16];
-  int len;
-
-  len = pixma_wait_interrupt (s->io, buf, sizeof (buf), timeout);
-  if (len == PIXMA_ETIMEDOUT)
-    return 0;
-  if (len < 0)
-    return len;
-  if (len != 16)
-    {
-      PDBG (pixma_dbg
-	    (1, "WARNING:unexpected interrupt packet length %d\n", len));
-      return PIXMA_EPROTO;
-    }
-  if (buf[12] & 0x40)
-    query_status (s);
-  if (buf[15] & 1)
-    s->events = PIXMA_EV_BUTTON1;
-  return 1;
-}
-
-static int
-step1 (pixma_t * s)
-{
-  int error;
-  int rec_tmo;
-  iclass_t *mf = (iclass_t *) s->subdriver;
-
-  /* don't wait full timeout for 1st command */
-  rec_tmo = s->rec_tmo;         /* save globel timeout */
-  s->rec_tmo = 2;               /* set timeout to 2 seconds */
-  error = query_status (s);
-  s->rec_tmo = rec_tmo;         /* restore global timeout */
-  if (error < 0)
-  {
-    PDBG (pixma_dbg (1, "WARNING: Resend first USB command after timeout!\n"));
-    error = query_status (s);
-  }
-  if (error < 0)
-    return error;
-
-  /* wait for inserted paper */
-  if (s->param->adf_wait != 0 && is_scanning_from_adf(s))
-  {
-    int tmo = s->param->adf_wait;
-
-    while (!has_paper (s) && --tmo >= 0 && !s->param->frontend_cancel)
-    {
-      if ((error = query_status (s)) < 0)
-        return error;
-      pixma_sleep (1000000);
-      PDBG (pixma_dbg(2, "No paper in ADF. Timed out in %d sec.\n", tmo));
-    }
-    /* canceled from frontend */
-    if (s->param->frontend_cancel)
-    {
-      return PIXMA_ECANCELED;
-    }
-  }
-  /* no paper inserted
-   * => abort session */
-  if (is_scanning_from_adf(s) && !has_paper (s))
-  {
-    return PIXMA_ENO_PAPER;
-  }
-  /* activate only seen for generation 1 scanners */
-  if (mf->generation == 1)
-    {
-      if (error >= 0)
-        error = activate (s, 0);
-      if (error >= 0)
-        error = activate (s, 4);
-    }
-  return error;
-}
-
-/* line in=rrr... ggg... bbb... line out=rgbrgbrgb...  */
-static void
-pack_rgb (const uint8_t * src, unsigned nlines, unsigned w, uint8_t * dst)
-{
-  unsigned w2, stride;
-
-  w2 = 2 * w;
-  stride = 3 * w;
-  for (; nlines != 0; nlines--)
-    {
-      unsigned x;
-      for (x = 0; x != w; x++)
-        {
-          *dst++ = src[x + 0];
-          *dst++ = src[x + w];
-          *dst++ = src[x + w2];
-        }
-      src += stride;
-    }
-}
-
-static int
-iclass_open (pixma_t * s)
-{
-  iclass_t *mf;
-  uint8_t *buf;
-
-  mf = (iclass_t *) calloc (1, sizeof (*mf));
-  if (!mf)
-    return PIXMA_ENOMEM;
-
-  buf = (uint8_t *) malloc (CMDBUF_SIZE);
-  if (!buf)
-    {
-      free (mf);
-      return PIXMA_ENOMEM;
-    }
-
-  s->subdriver = mf;
-  mf->state = state_idle;
-
-  mf->cb.buf = buf;
-  mf->cb.size = CMDBUF_SIZE;
-  mf->cb.res_header_len = 2;
-  mf->cb.cmd_header_len = 10;
-  mf->cb.cmd_len_field_ofs = 7;
-
-  /* adf scanning */
-  mf->adf_state = state_idle;
-
-  /* set generation = 2 for new multifunctionals */
-  mf->generation = (s->cfg->pid >= MF8030_PID) ? 2 : 1;
-  PDBG (pixma_dbg (3, "*iclass_open***** This is a generation %d scanner.  *****\n", mf->generation));
-
-  PDBG (pixma_dbg (3, "Trying to clear the interrupt buffer...\n"));
-  if (handle_interrupt (s, 200) == 0)
-    {
-      PDBG (pixma_dbg (3, "  no packets in buffer\n"));
-    }
-  return 0;
-}
-
-static void
-iclass_close (pixma_t * s)
-{
-  iclass_t *mf = (iclass_t *) s->subdriver;
-
-  iclass_finish_scan (s);
-  free (mf->cb.buf);
-  free (mf->buf);
-  free (mf);
-  s->subdriver = NULL;
-}
-
-static int
-iclass_check_param (pixma_t * s, pixma_scan_param_t * sp)
-{
-  UNUSED (s);
-
-  /* PDBG (pixma_dbg (4, "*iclass_check_param***** Initially: channels=%u, depth=%u, x=%u, y=%u, w=%u, line_size=%" PRIu64 " , h=%u*****\n",
-                   sp->channels, sp->depth, sp->x, sp->y, sp->w, sp->line_size, sp->h)); */
-
-  sp->depth = 8;
-  sp->software_lineart = 0;
-  if (sp->mode == PIXMA_SCAN_MODE_LINEART)
-  {
-    sp->software_lineart = 1;
-    sp->channels = 1;
-    sp->depth = 1;
-  }
-
-  if (sp->software_lineart == 1)
-  {
-    unsigned w_max;
-
-    /* for software lineart line_size and w must be a multiple of 8 */
-    sp->line_size = ALIGN_SUP (sp->w, 8) * sp->channels;
-    sp->w = ALIGN_SUP (sp->w, 8);
-
-    /* do not exceed the scanner capability */
-    w_max = s->cfg->width * s->cfg->xdpi / 75;
-    w_max -= w_max % 32;
-    if (sp->w > w_max)
-      sp->w = w_max;
-  }
-  else
-    sp->line_size = ALIGN_SUP (sp->w, 32) * sp->channels;
-
-  /* Some exceptions here for particular devices */
-  /* Those devices can scan up to Legal 14" with ADF, but A4 11.7" in flatbed */
-  /* PIXMA_CAP_ADF also works for PIXMA_CAP_ADFDUP */
-  if ((s->cfg->cap & PIXMA_CAP_ADF) && sp->source == PIXMA_SOURCE_FLATBED)
-    sp->h = MIN (sp->h, 877 * sp->xdpi / 75);
-
-  /* PDBG (pixma_dbg (4, "*iclass_check_param***** Finally: channels=%u, depth=%u, x=%u, y=%u, w=%u, line_size=%" PRIu64 " , h=%u*****\n",
-                   sp->channels, sp->depth, sp->x, sp->y, sp->w, sp->line_size, sp->h)); */
-
-  return 0;
-}
-
-static int
-iclass_scan (pixma_t * s)
-{
-  int error, n;
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  uint8_t *buf, ignore;
-  unsigned buf_len, ignore2;
-
-  if (mf->state != state_idle)
-    return PIXMA_EBUSY;
-
-  /* clear interrupt packets buffer */
-  while (handle_interrupt (s, 0) > 0)
-    {
-    }
-
-  mf->raw_width = ALIGN_SUP (s->param->w, 32);
-  PDBG (pixma_dbg (3, "raw_width = %u\n", mf->raw_width));
-
-  n = IMAGE_BLOCK_SIZE / s->param->line_size + 1;
-  buf_len = (n + 1) * s->param->line_size + IMAGE_BLOCK_SIZE;
-  if (buf_len > mf->buf_len)
-    {
-      buf = (uint8_t *) realloc (mf->buf, buf_len);
-      if (!buf)
-	return PIXMA_ENOMEM;
-      mf->buf = buf;
-      mf->buf_len = buf_len;
-    }
-  mf->lineptr = mf->buf;
-  mf->blkptr = mf->buf + n * s->param->line_size;
-  mf->blk_len = 0;
-
-  error = step1 (s);
-  if (error >= 0
-      && (s->param->adf_pageid == 0 || mf->generation == 1 || mf->adf_state == state_idle))
-    { /* single sheet or first sheet from ADF */
-      PDBG (pixma_dbg (3, "*iclass_scan***** start scanning *****\n"));
-      error = start_session (s);
-      if (error >= 0)
-        mf->state = state_scanning;
-      if (error >= 0)
-        error = select_source (s);
-    }
-  else if (error >= 0)
-    { /* next sheet from ADF */
-      PDBG (pixma_dbg (3, "*iclass_scan***** scan next sheet from ADF  *****\n"));
-      mf->state = state_scanning;
-    }
-  if (error >= 0)
-    error = send_scan_param (s);
-  if (error >= 0)
-    error = request_image_block (s, 0, &ignore, &ignore2, &ignore, &ignore2);
-  if (error < 0)
-    {
-      iclass_finish_scan (s);
-      return error;
-    }
-  mf->last_block = 0;
-
-  /* ADF scanning active */
-  if (is_scanning_from_adf (s))
-    mf->adf_state = state_scanning;
-  return 0;
-}
-
-
-static int
-iclass_fill_buffer (pixma_t * s, pixma_imagebuf_t * ib)
-{
-  int error, n;
-  iclass_t *mf = (iclass_t *) s->subdriver;
-  unsigned block_size, lines_size, lineart_lines_size, first_block_size;
-  uint8_t info;
-
-/*
- * 1. send a block request cmd (d4 20 00... 04 00 06)
- * 2. examine the response for block size and/or end-of-scan flag
- * 3. read the block one chunk at a time
- * 4. repeat until have enough to process >=1 lines
- */
-  do
-    {
-      do
-        {
-          if (s->cancel)
-            return PIXMA_ECANCELED;
-          if (mf->last_block)
-            {
-              /* end of image */
-              mf->state = state_finished;
-              return 0;
-            }
-
-          first_block_size = 0;
-          error = request_image_block (s, 4, &info, &block_size,
-                          mf->blkptr + mf->blk_len, &first_block_size);
-          /* add current block to remainder of previous */
-          mf->blk_len += first_block_size;
-          if (error < 0)
-            {
-              /* NOTE: seen in traffic logs but don't know the meaning. */
-              read_error_info (s, NULL, 0);
-              if (error == PIXMA_ECANCELED)
-                return error;
-            }
-
-          /* info: 0x28 = end; 0x38 = end + ADF empty */
-          mf->last_block = info & 0x38;
-          if ((info & ~0x38) != 0)
-            {
-              PDBG (pixma_dbg (1, "WARNING: Unexpected result header\n"));
-              PDBG (pixma_hexdump (1, &info, 1));
-            }
-
-          if (block_size == 0)
-            {
-              /* no image data at this moment. */
-              /*pixma_sleep(100000); *//* FIXME: too short, too long? */
-              handle_interrupt (s, 100);
-            }
-        }
-      while (block_size == 0 && first_block_size == 0);
-
-      error = read_image_block (s, mf->blkptr + mf->blk_len, block_size);
-      block_size = error;
-      if (error < 0)
-        return error;
-
-      /* add current block to remainder of previous */
-      mf->blk_len += block_size;
-      /* n = number of full lines (rows) we have in the buffer. */
-      n = mf->blk_len / ((s->param->mode == PIXMA_SCAN_MODE_LINEART) ? mf->raw_width : s->param->line_size);
-      if (n != 0)
-        {
-          /* PDBG (pixma_dbg (4, "*iclass_fill_buffer***** Processing with n=%d, w=%i, line_size=%" PRIu64 ", raw_width=%u ***** \n",
-                           n, s->param->w, s->param->line_size, mf->raw_width)); */
-          /* PDBG (pixma_dbg (4, "*iclass_fill_buffer*****                 scan_mode=%d, lineptr=%" PRIu64 ", blkptr=%" PRIu64 " \n",
-                           s->param->mode, (uint64_t)mf->lineptr, (uint64_t)mf->blkptr)); */
-
-          /* gray to lineart convert
-           * mf->lineptr         : image line
-           * mf->blkptr          : scanned image block as grayscale
-           * s->param->w         : image width
-           * s->param->line_size : scanned image width */
-          if (s->param->mode == PIXMA_SCAN_MODE_LINEART)
-          {
-            int i;
-            uint8_t *sptr, *dptr;
-
-            /* PDBG (pixma_dbg (4, "*iclass_fill_buffer***** Processing lineart *****\n")); */
-
-            /* process ALL lines */
-            sptr = mf->blkptr;
-            dptr = mf->lineptr;
-            for (i = 0; i < n; i++, sptr += mf->raw_width)
-              dptr = pixma_binarize_line (s->param, dptr, sptr, s->param->line_size, 1);
-          }
-          else if (s->param->channels != 1 &&
-                  mf->generation == 1 &&
-	          s->cfg->pid != MF4600_PID &&
-	          s->cfg->pid != MF6500_PID &&
-	          s->cfg->pid != MF8030_PID)
-            {
-              /* color and not MF46xx or MF65xx */
-              pack_rgb (mf->blkptr, n, mf->raw_width, mf->lineptr);
-            }
-          else
-            {
-              /* grayscale */
-              memcpy (mf->lineptr, mf->blkptr, n * s->param->line_size);
-            }
-          /* cull remainder and shift left */
-          lineart_lines_size = n * s->param->line_size / 8;
-          lines_size = n * ((s->param->mode == PIXMA_SCAN_MODE_LINEART) ? mf->raw_width : s->param->line_size);
-          mf->blk_len -= lines_size;
-          memcpy (mf->blkptr, mf->blkptr + lines_size, mf->blk_len);
-        }
-    }
-  while (n == 0);
-
-  /* output full lines, keep partial lines for next block
-   * ib->rptr : start of image buffer
-   * ib->rend : end of image buffer */
-  ib->rptr = mf->lineptr;
-  ib->rend = mf->lineptr + (s->param->mode == PIXMA_SCAN_MODE_LINEART ? lineart_lines_size : lines_size);
-  /* PDBG (pixma_dbg (4, "*iclass_fill_buffer*****                 rptr=%" PRIu64 ", rend=%" PRIu64 ", diff=%ld \n",
-                   (uint64_t)ib->rptr, (uint64_t)ib->rend, ib->rend - ib->rptr)); */
-  return ib->rend - ib->rptr;
-}
-
-static void
-iclass_finish_scan (pixma_t * s)
-{
-  int error;
-  iclass_t *mf = (iclass_t *) s->subdriver;
-
-  switch (mf->state)
-    {
-      /* fall through */
-    case state_warmup:
-    case state_scanning:
-      error = abort_session (s);
-      if (error < 0)
-	PDBG (pixma_dbg
-	      (1, "WARNING:abort_session() failed %s\n",
-	       pixma_strerror (error)));
-      /* fall through */
-    case state_finished:
-      query_status (s);
-      query_status (s);
-      if (mf->generation == 1)
-        { /* activate only seen for generation 1 scanners */
-          activate (s, 0);
-          query_status (s);
-        }
-      /* generation = 1:
-       * 0x28 = last block (no multi page scan)
-       * generation >= 2:
-       * 0x38 = last block and ADF empty (generation >= 2)
-       * 0x28 = last block and Paper in ADF (multi page scan)
-       * some generation 2 scanners don't use 0x38 for ADF empty => check status */
-      if (mf->last_block==0x38                                  /* generation 2 scanner ADF empty */
-          || (mf->generation == 1 && mf->last_block == 0x28)    /* generation 1 scanner last block */
-          || (mf->generation >= 2 && !has_paper(s)))            /* check status: no paper in ADF */
-	{
-          /* ADFDUP scan: wait for 8sec to throw last page out of ADF feeder */
-          if (is_scanning_from_adfdup(s))
-          {
-            PDBG (pixma_dbg (4, "*iclass_finish_scan***** sleep for 8s  *****\n"));
-            pixma_sleep(8000000);       /* sleep for 8s */
-            query_status (s);
-          }
-          PDBG (pixma_dbg (3, "*iclass_finish_scan***** abort session  *****\n"));
-	  abort_session (s);
-	  mf->adf_state = state_idle;
-	  mf->last_block = 0;
-	}
-      else
-        PDBG (pixma_dbg (3, "*iclass_finish_scan***** wait for next page from ADF  *****\n"));
-
-      mf->state = state_idle;
-      /* fall through */
-    case state_idle:
-      break;
-    }
-}
-
-static void
-iclass_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
-iclass_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;
-  return 0;
-}
-
-
-static const pixma_scan_ops_t pixma_iclass_ops = {
-  iclass_open,
-  iclass_close,
-  iclass_scan,
-  iclass_fill_buffer,
-  iclass_finish_scan,
-  iclass_wait_event,
-  iclass_check_param,
-  iclass_get_status
-};
-
-#define DEV(name, model, pid, dpi, adftpu_max_dpi, w, h, cap) {     \
-            name,                     /* name */		\
-            model,                    /* model */		\
-            0x04a9, pid,              /* vid pid */	\
-            1,                        /* iface */		\
-            &pixma_iclass_ops,        /* ops */		\
-            dpi, dpi,                 /* xdpi, ydpi */	\
-            0,                        /* adftpu_min_dpi not used in this subdriver */ \
-            adftpu_max_dpi,           /* adftpu_max_dpi */ \
-            0, 0,                     /* tpuir_min_dpi & tpuir_max_dpi not used in this subdriver */   \
-            w, h,                     /* width, height */	\
-            PIXMA_CAP_LINEART|        /* all scanners have software lineart */ \
-            PIXMA_CAP_ADF_WAIT|       /* adf wait for all ADF and ADFDUP scanners */ \
-            PIXMA_CAP_GRAY|PIXMA_CAP_EVENTS|cap             \
-}
-const pixma_config_t pixma_iclass_devices[] = {
-  DEV ("Canon imageCLASS MF4270", "MF4270", MF4200_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS MF4150", "MF4100", MF4100_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS MF4690", "MF4690", MF4600_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS D420", "D420", D420_PID, 600, 0, 640, 877, PIXMA_CAP_ADFDUP),
-  DEV ("Canon imageCLASS D480", "D480", D480_PID, 600, 0, 640, 877, PIXMA_CAP_ADFDUP),
-  DEV ("Canon imageCLASS MF4360", "MF4360", MF4360_PID, 600, 0, 640, 877, PIXMA_CAP_ADFDUP),
-  DEV ("Canon imageCLASS MF4320", "MF4320", MF4320_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS MF4010", "MF4010", MF4010_PID, 600, 0, 640, 877, 0),
-  DEV ("Canon imageCLASS MF3240", "MF3240", MF3200_PID, 600, 0, 640, 877, 0),
-  DEV ("Canon imageClass MF6500", "MF6500", MF6500_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS MF4410", "MF4410", MF4410_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS D550", "D550", D550_PID, 600, 0, 640, 1050, PIXMA_CAP_ADF),
-  DEV ("Canon i-SENSYS MF4500 Series", "MF4500", MF4500_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon i-SENSYS MF3010", "MF3010", MF3010_PID, 600, 0, 640, 877, 0),
-  DEV ("Canon i-SENSYS MF4700 Series", "MF4700", MF4700_PID, 600, 0, 640, 1050, PIXMA_CAP_ADF),
-  DEV ("Canon i-SENSYS MF4800 Series", "MF4800", MF4800_PID, 600, 0, 640, 1050, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS MF4570dw", "MF4570dw", MF4570_PID, 600, 0, 640, 877, 0),
-  DEV ("Canon i-SENSYS MF8200C Series", "MF8200C", MF8200_PID, 600, 300, 640, 1050, PIXMA_CAP_ADF),
-  DEV ("Canon i-SENSYS MF8300 Series", "MF8300", MF8300_PID, 600, 0, 640, 1050, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS D530", "D530", D530_PID, 600, 0, 640, 877, 0),
-  /* FIXME: the following capabilities all need updating/verifying */
-  DEV ("Canon imageCLASS MF5630", "MF5630", MF5630_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon laserBase MF5650", "MF5650", MF5650_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon imageCLASS MF8170c", "MF8170c", MF8100_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon imageClass MF8030", "MF8030", MF8030_PID, 600, 0, 640, 877, PIXMA_CAP_ADF),
-  DEV ("Canon i-SENSYS MF5880dn", "MF5880", MF5880_PID, 600, 0, 640, 877, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF6680dn", "MF6680", MF6680_PID, 600, 0, 640, 877, PIXMA_CAP_ADFDUP),
-  DEV ("Canon imageRUNNER 1133", "iR1133", IR1133_PID, 600, 0, 637, 877, PIXMA_CAP_ADFDUP),                  /* max. w = 216mm */
-  DEV ("Canon i-SENSYS MF5900 Series", "MF5900", MF5900_PID, 600, 0, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF8500C Series", "MF8500C", MF8500_PID, 600, 0, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF6100 Series", "MF6100", MF6100_PID, 600, 300, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon imageClass MF810/820", "MF810/820", MF820_PID, 600, 0, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF220 Series", "MF220", MF220_PID, 600, 0, 637, 1050, PIXMA_CAP_ADFDUP),              /* max. w = 216mm */
-  DEV ("Canon i-SENSYS MF210 Series", "MF210", MF210_PID, 600, 0, 637, 1050, PIXMA_CAP_ADF),                 /* max. w = 216mm */
-  DEV ("Canon i-SENSYS MF620 Series", "MF620", MF620_PID, 600, 0, 637, 1050, PIXMA_CAP_ADF),
-  DEV ("Canon i-SENSYS MF410 Series", "MF410", MF410_PID, 600, 0, 637, 1050, PIXMA_CAP_ADFDUP),              /* max. w = 216mm */
-  DEV ("Canon i-SENSYS MF510 Series", "MF510", MF510_PID, 600, 0, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF230 Series", "MF230", MF230_PID, 600, 0, 637, 1050, PIXMA_CAP_ADF),                 /* max. w = 216mm */
-  DEV ("Canon i-SENSYS MF240 Series", "MF240", MF240_PID, 600, 300, 634, 1050, PIXMA_CAP_ADF),               /* max. w = 215mm, */
-                                                                                                             /* TODO: fix black stripes for 216mm @ 600dpi */
-  DEV ("Canon i-SENSYS MF630 Series", "MF630", MF630_PID, 600, 0, 637, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF730 Series", "MF730", MF730_PID, 600, 0, 637, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF731C", "MF731", MF731_PID, 600, 0, 637, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon imageCLASS MF634C", "MF632C/634C", MF634_PID, 600, 0, 637, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon imageCLASS MF733C", "MF731C/733C", MF731_PID, 600, 0, 637, 1050, PIXMA_CAP_ADFDUP),            /* however, we need this for ethernet/wifi */
-  DEV ("Canon imageCLASS D570", "D570", D570_PID, 600, 0, 640, 877, 0),
-  DEV ("Canon i-SENSYS MF110 Series", "MF110", MF110_PID, 600, 0, 640, 1050, 0),
-  DEV ("Canon i-SENSYS MF520 Series", "MF520", MF520_PID, 600, 0, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF420 Series", "MF420", MF420_PID, 600, 0, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF260 Series", "MF260", MF260_PID, 600, 0, 640, 1050, 0),
-  DEV ("Canon i-SENSYS MF740 Series", "MF740", MF740_PID, 600, 0, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV ("Canon i-SENSYS MF640 Series", "MF640", MF640_PID, 600, 0, 640, 1050, PIXMA_CAP_ADFDUP),
-  DEV (NULL, NULL, 0, 0, 0, 0, 0, 0)
-};