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Import very basic demo/control program for qcam driver.

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Manual to follow real-soon-now(tm).
This commit is contained in:
Paul Traina 1996-02-04 09:33:52 +00:00
parent 89f5440dad
commit e1f52c89b4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/cvs2svn/branches/TRAINA/; revision=13899
2 changed files with 190 additions and 0 deletions
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6
usr.sbin/qcamcontrol/Makefile Normal file
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PROG= qcamcontrol
# soon... very soon... I promise (pst 3-Feb-1996)
NOMAN=
.include <bsd.prog.mk>

184
usr.sbin/qcamcontrol/qcamcontrol.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <machine/qcam.h>
void print_data(struct qcam *data)
{
fprintf(stderr, "version=%d, (%d,%d) at (%d,%d) @%dbpp,"
"zoom=%d, b/w/c=%d/%d/%d\n",
data->qc_version,
data->qc_xsize, data->qc_ysize,
data->qc_xorigin, data->qc_yorigin,
data->qc_bpp,
data->qc_zoom,
data->qc_brightness,
data->qc_whitebalance,
data->qc_contrast);
}
main(int argc, char **argv)
{
struct qcam info;
int fd, len;
size_t bytes;
char opt;
static char buffer[QC_MAX_XSIZE*QC_MAX_YSIZE];
char *port = "/dev/qcam0";
int x_size, y_size, zoom, depth, brightness, whitebalance, contrast;
/*
* Default everything to unset.
*/
x_size = y_size = zoom = depth = brightness = whitebalance =
contrast = -1;
while ((opt = getopt(argc, argv, "p:x:y:z:d:b;w:c:")) != EOF) {
switch (opt) {
case 'p':
port = optarg;
break;
case 'x':
x_size = atoi(optarg);
if (x_size > QC_MAX_XSIZE) {
fprintf(stderr, "x size too large (max %d)\n",
QC_MAX_XSIZE);
exit(2);
}
break;
case 'y':
y_size = atoi(optarg);
if (y_size > QC_MAX_YSIZE) {
fprintf(stderr, "x size too large (max %d)\n",
QC_MAX_YSIZE);
exit(2);
}
break;
case 'z':
zoom = atoi(optarg);
if (zoom > QC_ZOOM_200) {
fprintf(stderr, "zoom too large (max %d)\n", QC_ZOOM_200);
exit(2);
}
break;
case 'd':
depth = atoi(optarg);
if (depth != 4 && depth != 6) {
fprintf(stderr, "invalid depth (4 or 6)\n");
exit(2);
}
break;
case 'b':
brightness = atoi(optarg);
if (brightness > 255) {
fprintf(stderr, "bad brightness (max 255)\n");
exit(2);
}
break;
case 'w':
whitebalance = atoi(optarg);
if (whitebalance > 255) {
fprintf(stderr, "bad white balance (max 255)\n");
exit(2);
}
break;
case 'c':
contrast = atoi(optarg);
if (contrast > 255) {
fprintf(stderr, "bad contrast (max 255)\n");
exit(2);
}
break;
}
argc--;
argv++;
}
/* open device */
if ((fd = open(port, O_RDONLY)) < 0) {
perror("open");
exit(1);
}
if (ioctl(fd, QC_GET, &info) < 0) { /* read in default info */
perror("ioctl(QC_GET)");
exit(1);
}
if (x_size > -1)
info.qc_xsize = x_size;
if (y_size > -1)
info.qc_ysize = y_size;
if (depth > -1)
info.qc_bpp = depth;
if (zoom > -1)
info.qc_zoom = zoom;
if (brightness > -1)
info.qc_brightness = brightness;
if (whitebalance > -1)
info.qc_whitebalance = whitebalance;
if (contrast > -1)
info.qc_contrast = contrast;
/*
* make sure we're in sync with the kernel version of the driver
* ioctl structure
*/
info.qc_version = QC_IOCTL_VERSION;
if (ioctl(fd, QC_SET, &info) < 0) {
perror("ioctl(QC_SET)");
exit(1);
}
/*
* Tell us what the kernel thinks we're asking for
*/
if (ioctl(fd, QC_GET, &info) < 0) {
perror("ioctl(QC_SET)");
exit(1);
}
print_data(&info);
/*
* Grab a frame -- a single read will always work, but give a
* particularly paranoid example.
*/
len = info.qc_xsize * info.qc_ysize;
while (len) {
bytes = read(fd, buffer, len);
if (bytes < 0) {
perror("read");
exit(1);
}
len -= bytes;
if (bytes == 0)
exit(0);
}
/*
* Write the frame to stdout as a PGM image.
*/
fprintf(stdout, "P5\n%d %d\n%d\n",
info.qc_xsize, info.qc_ysize, (1<<info.qc_bpp) - 1);
fflush(stdout);
if (write(1, buffer, info.qc_xsize * info.qc_ysize) < 0) {
perror("write");
exit(1);
}
}