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-rw-r--r--backend/canon630u-common.c42
1 files changed, 21 insertions, 21 deletions
diff --git a/backend/canon630u-common.c b/backend/canon630u-common.c
index a46424a..27c34ff 100644
--- a/backend/canon630u-common.c
+++ b/backend/canon630u-common.c
@@ -35,15 +35,15 @@
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.
+ If you do not wish that, delete this exception notice.
*/
/*
Communication, calibration, and scanning with the Canon CanoScan FB630U
flatbed scanner under linux.
-
+
Reworked into SANE-compatible format.
-
+
The usb-parallel port interface chip is GL640usb, on the far side of
which is an LM9830 parallel-port scanner-on-a-chip.
@@ -153,7 +153,7 @@ gl640ReadReq (int fd, GL640_Request req, byte * data)
}
-/* Write USB bulk data
+/* Write USB bulk data
setup is an apparently scanner-specific sequence:
{(0=read, 1=write), 0x00, 0x00, 0x00, sizelo, sizehi, 0x00, 0x00}
hp3400: setup[1] = 0x01
@@ -177,7 +177,7 @@ gl640WriteBulk (int fd, byte * setup, byte * data, size_t size)
}
-/* Read USB bulk data
+/* Read USB bulk data
setup is an apparently scanner-specific sequence:
{(0=read, 1=write), 0x00, 0x00, 0x00, sizelo, sizehi, 0x00, 0x00}
fb630u: setup[2] = 0x80
@@ -461,7 +461,7 @@ typedef struct CANON_Handle
#define FLG_GRAY 0x01 /* grayscale */
#define FLG_FORCE_CAL 0x02 /* force calibration */
#define FLG_BUF 0x04 /* save scan to buffer instead of file */
-#define FLG_NO_INTERLEAVE 0x08 /* don't interleave r,g,b pixels; leave them
+#define FLG_NO_INTERLEAVE 0x08 /* don't interleave r,g,b pixels; leave them
in row format */
#define FLG_PPM_HEADER 0x10 /* include PPM header in scan file */
}
@@ -501,7 +501,7 @@ init (int fd)
{
byte result, rv;
- if (gl640WriteReq (fd, GL640_GPIO_OE, 0x71) != SANE_STATUS_GOOD) {
+ if (gl640WriteReq (fd, GL640_GPIO_OE, 0x71) != SANE_STATUS_GOOD) {
DBG(1, "Initial write request failed.\n");
return -1;
}
@@ -653,7 +653,7 @@ do_scan (CANON_Handle * s)
fwrite (redptr + s->width, 1, 1, fp); /* Green */
fwrite (redptr + s->width + s->width, 1, 1, fp); /* Blue */
/* for PPM ascii (P3)
- fprintf(fp, "%3d %3d %3d\n", *redptr,
+ fprintf(fp, "%3d %3d %3d\n", *redptr,
*(redptr + s->width),
*(redptr + s->width + s->width));
*/
@@ -869,8 +869,8 @@ plugin_cal (CANON_Handle * s)
write_word (fd, LAMP_B_OFF, 0x0100);
/* coming in, we've got 300dpi,
data px start : 0x004b
- data px end : 0x1437 for a total of 5100(13ec) 600-dpi pixels,
- (8.5 inches) or 2550 300-dpi pixels (7653 bytes).
+ data px end : 0x1437 for a total of 5100(13ec) 600-dpi pixels,
+ (8.5 inches) or 2550 300-dpi pixels (7653 bytes).
Interestingly, the scan head never moves, no matter how many rows
are read. */
s->width = 2551;
@@ -981,7 +981,7 @@ plugin_cal (CANON_Handle * s)
somewhat more complicated than necessary because I don't hard-code the
strip widths; I try to figure out the regions based on the scan data.
Theoretically, the region-finder should work for any number of distinct
- regions (but there are only 2 on this scanner.)
+ regions (but there are only 2 on this scanner.)
This produces the CAL_FILE_OGN file, the final offset/gain table. */
static SANE_Status
compute_ogn (char *calfilename)
@@ -1132,7 +1132,7 @@ compute_ogn (char *calfilename)
continue;
}
- /* Gain multiplier:
+ /* Gain multiplier:
255 : 1.5 times brighter
511 : 2 times brighter
1023: 3 times brighter */
@@ -1146,9 +1146,9 @@ compute_ogn (char *calfilename)
offset would be bad. */
/* Enhanced offset and gain calculation by M.Reinelt <reinelt@eunet.at>
- * These expressions were found by an iterative calibration process,
+ * These expressions were found by an iterative calibration process,
* by changing gain and offset values for every pixel until the desired
- * values for black and white were reached, and finding an approximation
+ * values for black and white were reached, and finding an approximation
* formula.
* Note that offset is linear, but gain isn't!
*/
@@ -1256,8 +1256,8 @@ scan (CANON_Handle * opt)
read_byte (fd, STATUS, &result); /* wants 2f or 2d */
if (!(result & STATUS_HOME) /*0x2d */ )
return SANE_STATUS_DEVICE_BUSY;
- /* or force it to return?
- write_byte(fd, COMMAND, 0x02);
+ /* or force it to return?
+ write_byte(fd, COMMAND, 0x02);
wait_for_return(fd);
*/
@@ -1439,9 +1439,9 @@ CANON_set_scan_parameters (CANON_Handle * scan,
const int left,
const int top,
const int right,
- const int bottom,
- const int res,
- const int gain,
+ const int bottom,
+ const int res,
+ const int gain,
const double gamma)
{
DBG (2, "CANON_set_scan_parameters:\n");
@@ -1593,12 +1593,12 @@ CANON_start_scan (CANON_Handle * scanner)
return SANE_STATUS_IO_ERROR;
}
if ((rv == 1)
- || !check_ogn_file ()
+ || !check_ogn_file ()
|| (scanner->flags & FLG_FORCE_CAL)) {
plugin_cal (scanner);
wait_for_return (scanner->fd);
}
-
+
/* scan */
if ((status = scan (scanner)) != SANE_STATUS_GOOD)
{