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))
{ /* 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;
return 0;
}
static int
mp730_open (pixma_t * s)
{
mp730_t *mp;
uint8_t *buf;
mp = (mp730_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;
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;
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 int
step1 (pixma_t * s)
{
int error, tmo;
error = activate (s, 0);
if (error < 0)
return error;
error = query_status (s);
if (error < 0)
return error;
if (s->param->source == PIXMA_SOURCE_ADF && !has_paper (s))
return PIXMA_ENO_PAPER;
error = activate_cs (s, 0);
/*SIM*/ if (error < 0)
return error;
error = activate_cs (s, 0x20);
if (error < 0)
return error;
tmo = 60;
error = calibrate_cs (s);
while (error == PIXMA_EBUSY && --tmo >= 0)
{
if (s->cancel)
return PIXMA_ECANCELED;
PDBG (pixma_dbg
(2, "Scanner is busy. Timed out in %d sec.\n", tmo + 1));
pixma_sleep (1000000);
error = calibrate_cs (s);
}
return error;
}
static SANE_Status
map_error (int error)
{
if (error >= 0)
return SANE_STATUS_GOOD;
switch (error)
{
case PIXMA_ENOMEM:
return SANE_STATUS_NO_MEM;
case PIXMA_ECANCELED:
return SANE_STATUS_CANCELLED;
case PIXMA_EBUSY:
return SANE_STATUS_DEVICE_BUSY;
case PIXMA_EINVAL:
return SANE_STATUS_INVAL;
case PIXMA_EACCES:
return SANE_STATUS_ACCESS_DENIED;
case PIXMA_EPAPER_JAMMED:
return SANE_STATUS_JAMMED;
case PIXMA_ENO_PAPER:
return SANE_STATUS_NO_DOCS;
case PIXMA_ECOVER_OPEN:
return SANE_STATUS_COVER_OPEN;
case PIXMA_ENOTSUP:
return SANE_STATUS_UNSUPPORTED;
case PIXMA_EPROTO:
case PIXMA_ENODEV:
case PIXMA_EIO:
case PIXMA_ETIMEDOUT:
return SANE_STATUS_IO_ERROR;
}
PDBG (pixma_dbg (1, "BUG: unmapped error %d\n", error));
return SANE_STATUS_IO_ERROR;
}
static int
handle_interrupt (pixma_t * s, int timeout)
{
int error;
uint8_t intr[16];
error = pixma_wait_interrupt (s->io, intr, sizeof (intr), timeout);
if (error == PIXMA_ETIMEDOUT)
return 0;
if (error < 0)
return error;
if (error != 16)
{
PDBG (pixma_dbg (1, "WARNING: unexpected interrupt packet length %d\n",
error));
return PIXMA_EPROTO;
}
if (intr[10] & 0x40)
send_time (s);
if (intr[12] & 0x40)
query_status (s);
if (intr[15] & 1)
s->events = PIXMA_EV_BUTTON2; /* b/w scan */
if (intr[15] & 2)
s->events = PIXMA_EV_BUTTON1; /* color scan */
return 1;
}
static void
workaround_first_command (pixma_t * s)
{
/* FIXME: Send a dummy command because the device doesn't response to the
first command that is sent directly after the USB interface has been
set up. Why? USB isn't set up properly? */
uint8_t cmd[10];
int error;
if (s->cfg->pid == MP750_PID)
return; /* MP750 doesn't have this problem(?) */
PDBG (pixma_dbg
(1,
"Work-around for the problem: device doesn't response to the first command.\n"));
memset (cmd, 0, sizeof (cmd));
pixma_set_be16 (cmd_calibrate, cmd);
error = pixma_write (s->io, cmd, 10);
if (error != 10)
{
if (error < 0)
{
PDBG (pixma_dbg
(1, " Sending a dummy command failed: %s\n",
pixma_strerror (error)));
}
else
{
PDBG (pixma_dbg
(1, " Sending a dummy command failed: count = %d\n", error));
}
return;
}
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
send_time (pixma_t * s)
{
/* TODO: implement send_time() */
UNUSED (s);
PDBG (pixma_dbg (3, "send_time() is not yet implemented.\n"));
return 0;
}
static void
mp730_finish_scan (pixma_t * s)
{
int error, aborted = 0;
mp730_t *mp = (mp730_t *) s->subdriver;
switch (mp->state)
{
case state_transfering:
drain_bulk_in (s);
/* fall through */
case state_scanning:
case state_warmup:
aborted = 1;
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);
activate (s, 0);
if (! aborted && s->cfg->pid == IR1020_PID)
{
error = abort_session (s);
if (error < 0)
{
PDBG (pixma_dbg
(1, "WARNING:abort_session() failed %s\n",
pixma_strerror (error)));
query_status (s);
query_status (s);
activate (s, 0);
}
}
mp->buf = mp->lbuf = mp->imgbuf = NULL;
mp->state = state_idle;
/* fall through */
case state_idle:
break;
}
}
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);
}
/* 0x38 = last block and ADF empty
* 0x28 = last block and Paper in ADF */
if (mf->last_block==0x38 /* ADF empty */
|| (mf->generation == 1 && mf->last_block == 0x28)) /* generation 1 scanner or Paper in ADF */
{
PDBG (pixma_dbg (3, "*iclass_finish_scan***** abort session *****\n"));
abort_session (s);
}
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 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;
/* set generation = 2 for new multifunctionals
* some new scanners use generation 1 protocol */
mf->generation = (s->cfg->pid >= MF8030_PID &&
s->cfg->pid != MF8200_PID &&
s->cfg->pid != MF8500_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
find_scanners (void)
{
unsigned i, nscanners;
cleanup_device_list ();
nscanners = pixma_find_scanners (conf_devices);
PDBG (pixma_dbg (3, "pixma_find_scanners() found %u devices\n", nscanners));
dev_list =
(const SANE_Device **) calloc (nscanners + 1, sizeof (*dev_list));
if (!dev_list)
return;
for (i = 0; i != nscanners; i++)
{
SANE_Device *sdev = (SANE_Device *) calloc (1, sizeof (*sdev));
char *name, *model;
if (!sdev)
goto nomem;
name = strdup (pixma_get_device_id (i));
model = strdup (pixma_get_device_model (i));
if (!name || !model)
{
free (name);
free (model);
free (sdev);
goto nomem;
}
sdev->name = name;
sdev->model = model;
sdev->vendor = vendor_str;
sdev->type = type_str;
dev_list[i] = sdev;
}
/* dev_list is already NULL terminated by calloc(). */
return;
nomem:
PDBG (pixma_dbg (1, "WARNING:not enough memory for device list\n"));
return;
}
static int
query_status (pixma_t * s)
{
mp730_t *mp = (mp730_t *) s->subdriver;
uint8_t *data;
int error;
data = pixma_newcmd (&mp->cb, cmd_status, 0, 12);
error = pixma_exec (s, &mp->cb);
if (error >= 0)
{
memcpy (mp->current_status, data, 12);
PDBG (pixma_dbg (3, "Current status: paper=%u cal=%u lamp=%u\n",
data[1], data[8], data[7]));
}
return error;
}
static int
mp730_scan (pixma_t * s)
{
int error, n;
mp730_t *mp = (mp730_t *) s->subdriver;
uint8_t *buf;
if (mp->state != state_idle)
return PIXMA_EBUSY;
/* clear interrupt packets buffer */
while (handle_interrupt (s, 0) > 0)
{
}
mp->raw_width = calc_raw_width (s, s->param);
PDBG (pixma_dbg (3, "raw_width = %u\n", mp->raw_width));
n = IMAGE_BLOCK_SIZE / s->param->line_size + 1;
buf = (uint8_t *) malloc ((n + 1) * s->param->line_size + IMAGE_BLOCK_SIZE);
if (!buf)
return PIXMA_ENOMEM;
mp->buf = buf;
mp->lbuf = buf;
mp->imgbuf = buf + n * s->param->line_size;
mp->imgbuf_len = 0;
error = step1 (s);
if (error >= 0)
error = start_session (s);
if (error >= 0)
mp->state = state_scanning;
if (error >= 0)
error = select_source (s);
if (error >= 0)
error = send_scan_param (s);
if (error < 0)
{
mp730_finish_scan (s);
return error;
}
mp->last_block = 0;
return 0;
}
static int
read_image_block (pixma_t * s, uint8_t * data)
{
int count, temp;
count = pixma_read (s->io, data, IMAGE_BLOCK_SIZE);
if (count < 0)
return count;
if (count == IMAGE_BLOCK_SIZE)
{
int error = pixma_read (s->io, &temp, 0);
if (error < 0)
{
PDBG (pixma_dbg
(1, "WARNING: reading zero-length packet failed %d\n", error));
}
}
return count;
}
static int
send_time (pixma_t * s)
{
/* Why does a scanner need a time? */
time_t now;
struct tm *t;
uint8_t *data;
mp730_t *mp = (mp730_t *) s->subdriver;
data = pixma_newcmd (&mp->cb, cmd_time, 20, 0);
pixma_get_time (&now, NULL);
t = localtime (&now);
snprintf ((char *) data, 16,
"%02d/%02d/%02d %02d:%02d",
t->tm_year % 100, t->tm_mon + 1, t->tm_mday,
t->tm_hour, t->tm_min);
PDBG (pixma_dbg (3, "Sending time: '%s'\n", (char *) data));
return pixma_exec (s, &mp->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);
pixma_set_be16 (((mf->generation >= 2) ? 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 : 0;
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
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
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
mp730_fill_buffer (pixma_t * s, pixma_imagebuf_t * ib)
{
int error, n;
mp730_t *mp = (mp730_t *) s->subdriver;
unsigned block_size, bytes_received;
uint8_t header[16];
do
{
do
{
if (s->cancel)
return PIXMA_ECANCELED;
if (mp->last_block) /* end of image */
return 0;
error = read_image_block (s, header, mp->imgbuf + mp->imgbuf_len);
if (error < 0)
return error;
bytes_received = error;
block_size = pixma_get_be16 (header + 4);
mp->last_block = ((header[2] & 0x28) == 0x28);
if (mp->last_block)
{ /* end of image */
mp->state = state_finished;
}
if ((header[2] & ~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(100000); *//* FIXME: too short, too long? */
handle_interrupt (s, 100);
}
}
while (block_size == 0);
/* TODO: simplify! */
mp->imgbuf_len += bytes_received;
n = mp->imgbuf_len / s->param->line_size;
/* n = number of full lines (rows) we have in the buffer. */
if (n != 0)
{
if (s->param->channels != 1 &&
s->cfg->pid != MF5730_PID &&
s->cfg->pid != MF5750_PID &&
s->cfg->pid != MF5770_PID &&
s->cfg->pid != MF3110_PID &&
s->cfg->pid != IR1020_PID)
{
/* color, and not an MF57x0 nor MF3110 */
pack_rgb (mp->imgbuf, n, mp->raw_width, mp->lbuf);
}
else
/* grayscale/lineart or MF57x0 or MF3110 */
memcpy (mp->lbuf, mp->imgbuf, n * s->param->line_size);
block_size = n * s->param->line_size;
mp->imgbuf_len -= block_size;
memcpy (mp->imgbuf, mp->imgbuf + block_size, mp->imgbuf_len);
}
}
while (n == 0);
ib->rptr = mp->lbuf;
ib->rend = mp->lbuf + block_size;
return ib->rend - ib->rptr;
}
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, 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->line_size;
if (n != 0)
{
if (s->param->channels != 1 &&
s->cfg->pid != MF3010_PID &&
s->cfg->pid != MF4410_PID &&
s->cfg->pid != MF4770_PID &&
s->cfg->pid != MF4550_PID &&
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);
}
lines_size = n * s->param->line_size;
/* cull remainder and shift left */
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 = mf->lineptr;
ib->rend = mf->lineptr + lines_size;
return ib->rend - ib->rptr;
}
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 int
step1 (pixma_t * s)
{
int error, tmo;
error = query_status (s);
if (error < 0)
return error;
if ((s->param->source == PIXMA_SOURCE_ADF
|| s->param->source == PIXMA_SOURCE_ADFDUP)
&& !has_paper (s))
return PIXMA_ENO_PAPER;
if (has_ccd_sensor (s))
{
switch (s->cfg->pid)
{
case MF5730_PID:
case MF5750_PID:
case MF5770_PID:
/* MF57x0: Wait 10 sec before starting for 1st page only */
if (s->param->adf_pageid == 0)
{
tmo = 10; /* like Windows driver, 10 sec CCD calibration ? */
while (--tmo >= 0)
{
error = handle_interrupt (s, 1000); \
if (s->cancel) \
return PIXMA_ECANCELED; \
if (error != PIXMA_ECANCELED && error < 0) \
return error;
PDBG (pixma_dbg (2, "CCD Calibration ends in %d sec.\n", tmo));
}
}
break;
default:
break;
}
activate (s, 0);
error = calibrate (s);
switch (s->cfg->pid)
{
case MF5730_PID:
case MF5750_PID:
case MF5770_PID:
/* MF57x0: calibration returns PIXMA_STATUS_FAILED */
if (error == PIXMA_ECANCELED)
error = read_error_info (s, NULL, 0);
break;
default:
break;
}
}
if (error >= 0)
error = activate (s, 0);
if (error >= 0)
error = activate (s, 4);
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;
switch (s->cfg->pid)
{
case MP360_PID:
case MP370_PID:
case MP375R_PID:
case MP390_PID:
case MF5730_PID:
case MF5750_PID:
case MF5770_PID:
case MF3110_PID:
case IR1020_PID:
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[10] & 0x40)
send_time (s);
/* FIXME: following is unverified! */
if (buf[15] & 1)
s->events = PIXMA_EV_BUTTON2; /* b/w scan */
if (buf[15] & 2)
s->events = PIXMA_EV_BUTTON1; /* color scan */
break;
case MP700_PID:
case MP730_PID:
case MP710_PID:
case MP740_PID:
if (len != 8)
{
PDBG (pixma_dbg
(1, "WARNING:unexpected interrupt packet length %d\n", len));
return PIXMA_EPROTO;
}
if (buf[7] & 0x10)
s->events = PIXMA_EV_BUTTON1;
if (buf[5] & 8)
send_time (s);
break;
default:
PDBG (pixma_dbg (1, "WARNING:unknown interrupt, please report!\n"));
PDBG (pixma_hexdump (1, buf, len));
}
return 1;
}
