mirror of https://gitee.com/openkylin/linux.git
V4L/DVB: c-qcam: coding style cleanup
Clean up the coding style before we convert this driver to V4L2. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
380de498e2
commit
51224aa436
|
|
@ -79,17 +79,17 @@ static inline void qcam_set_ack(struct qcam_device *qcam, unsigned int i)
|
|||
{
|
||||
/* note: the QC specs refer to the PCAck pin by voltage, not
|
||||
software level. PC ports have builtin inverters. */
|
||||
parport_frob_control(qcam->pport, 8, i?8:0);
|
||||
parport_frob_control(qcam->pport, 8, i ? 8 : 0);
|
||||
}
|
||||
|
||||
static inline unsigned int qcam_ready1(struct qcam_device *qcam)
|
||||
{
|
||||
return (parport_read_status(qcam->pport) & 0x8)?1:0;
|
||||
return (parport_read_status(qcam->pport) & 0x8) ? 1 : 0;
|
||||
}
|
||||
|
||||
static inline unsigned int qcam_ready2(struct qcam_device *qcam)
|
||||
{
|
||||
return (parport_read_data(qcam->pport) & 0x1)?1:0;
|
||||
return (parport_read_data(qcam->pport) & 0x1) ? 1 : 0;
|
||||
}
|
||||
|
||||
static unsigned int qcam_await_ready1(struct qcam_device *qcam,
|
||||
|
|
@ -99,14 +99,13 @@ static unsigned int qcam_await_ready1(struct qcam_device *qcam,
|
|||
unsigned int i;
|
||||
|
||||
for (oldjiffies = jiffies;
|
||||
time_before(jiffies, oldjiffies + msecs_to_jiffies(40)); )
|
||||
time_before(jiffies, oldjiffies + msecs_to_jiffies(40));)
|
||||
if (qcam_ready1(qcam) == value)
|
||||
return 0;
|
||||
|
||||
/* If the camera didn't respond within 1/25 second, poll slowly
|
||||
for a while. */
|
||||
for (i = 0; i < 50; i++)
|
||||
{
|
||||
for (i = 0; i < 50; i++) {
|
||||
if (qcam_ready1(qcam) == value)
|
||||
return 0;
|
||||
msleep_interruptible(100);
|
||||
|
|
@ -125,14 +124,13 @@ static unsigned int qcam_await_ready2(struct qcam_device *qcam, int value)
|
|||
unsigned int i;
|
||||
|
||||
for (oldjiffies = jiffies;
|
||||
time_before(jiffies, oldjiffies + msecs_to_jiffies(40)); )
|
||||
time_before(jiffies, oldjiffies + msecs_to_jiffies(40));)
|
||||
if (qcam_ready2(qcam) == value)
|
||||
return 0;
|
||||
|
||||
/* If the camera didn't respond within 1/25 second, poll slowly
|
||||
for a while. */
|
||||
for (i = 0; i < 50; i++)
|
||||
{
|
||||
for (i = 0; i < 50; i++) {
|
||||
if (qcam_ready2(qcam) == value)
|
||||
return 0;
|
||||
msleep_interruptible(100);
|
||||
|
|
@ -149,22 +147,25 @@ static unsigned int qcam_await_ready2(struct qcam_device *qcam, int value)
|
|||
static int qcam_read_data(struct qcam_device *qcam)
|
||||
{
|
||||
unsigned int idata;
|
||||
|
||||
qcam_set_ack(qcam, 0);
|
||||
if (qcam_await_ready1(qcam, 1)) return -1;
|
||||
if (qcam_await_ready1(qcam, 1))
|
||||
return -1;
|
||||
idata = parport_read_status(qcam->pport) & 0xf0;
|
||||
qcam_set_ack(qcam, 1);
|
||||
if (qcam_await_ready1(qcam, 0)) return -1;
|
||||
idata |= (parport_read_status(qcam->pport) >> 4);
|
||||
if (qcam_await_ready1(qcam, 0))
|
||||
return -1;
|
||||
idata |= parport_read_status(qcam->pport) >> 4;
|
||||
return idata;
|
||||
}
|
||||
|
||||
static int qcam_write_data(struct qcam_device *qcam, unsigned int data)
|
||||
{
|
||||
unsigned int idata;
|
||||
|
||||
parport_write_data(qcam->pport, data);
|
||||
idata = qcam_read_data(qcam);
|
||||
if (data != idata)
|
||||
{
|
||||
if (data != idata) {
|
||||
printk(KERN_WARNING "cqcam: sent %x but received %x\n", data,
|
||||
idata);
|
||||
return 1;
|
||||
|
|
@ -212,13 +213,12 @@ static int qc_detect(struct qcam_device *qcam)
|
|||
|
||||
/* look for a heartbeat */
|
||||
ostat = stat = parport_read_status(qcam->pport);
|
||||
for (i=0; i<250; i++)
|
||||
{
|
||||
for (i = 0; i < 250; i++) {
|
||||
mdelay(1);
|
||||
stat = parport_read_status(qcam->pport);
|
||||
if (ostat != stat)
|
||||
{
|
||||
if (++count >= 3) return 1;
|
||||
if (ostat != stat) {
|
||||
if (++count >= 3)
|
||||
return 1;
|
||||
ostat = stat;
|
||||
}
|
||||
}
|
||||
|
|
@ -232,13 +232,12 @@ static int qc_detect(struct qcam_device *qcam)
|
|||
count = 0;
|
||||
|
||||
ostat = stat = parport_read_status(qcam->pport);
|
||||
for (i=0; i<250; i++)
|
||||
{
|
||||
for (i = 0; i < 250; i++) {
|
||||
mdelay(1);
|
||||
stat = parport_read_status(qcam->pport);
|
||||
if (ostat != stat)
|
||||
{
|
||||
if (++count >= 3) return 1;
|
||||
if (ostat != stat) {
|
||||
if (++count >= 3)
|
||||
return 1;
|
||||
ostat = stat;
|
||||
}
|
||||
}
|
||||
|
|
@ -263,7 +262,7 @@ static void qc_setup(struct qcam_device *q)
|
|||
{
|
||||
qc_reset(q);
|
||||
|
||||
/* Set the brightness. */
|
||||
/* Set the brightness. */
|
||||
qcam_set(q, 11, q->brightness);
|
||||
|
||||
/* Set the height and width. These refer to the actual
|
||||
|
|
@ -292,25 +291,25 @@ static unsigned int qcam_read_bytes(struct qcam_device *q, unsigned char *buf, u
|
|||
unsigned int bytes = 0;
|
||||
|
||||
qcam_set_ack(q, 0);
|
||||
if (q->bidirectional)
|
||||
{
|
||||
if (q->bidirectional) {
|
||||
/* It's a bidirectional port */
|
||||
while (bytes < nbytes)
|
||||
{
|
||||
while (bytes < nbytes) {
|
||||
unsigned int lo1, hi1, lo2, hi2;
|
||||
unsigned char r, g, b;
|
||||
|
||||
if (qcam_await_ready2(q, 1)) return bytes;
|
||||
if (qcam_await_ready2(q, 1))
|
||||
return bytes;
|
||||
lo1 = parport_read_data(q->pport) >> 1;
|
||||
hi1 = ((parport_read_status(q->pport) >> 3) & 0x1f) ^ 0x10;
|
||||
qcam_set_ack(q, 1);
|
||||
if (qcam_await_ready2(q, 0)) return bytes;
|
||||
if (qcam_await_ready2(q, 0))
|
||||
return bytes;
|
||||
lo2 = parport_read_data(q->pport) >> 1;
|
||||
hi2 = ((parport_read_status(q->pport) >> 3) & 0x1f) ^ 0x10;
|
||||
qcam_set_ack(q, 0);
|
||||
r = (lo1 | ((hi1 & 1)<<7));
|
||||
g = ((hi1 & 0x1e)<<3) | ((hi2 & 0x1e)>>1);
|
||||
b = (lo2 | ((hi2 & 1)<<7));
|
||||
r = lo1 | ((hi1 & 1) << 7);
|
||||
g = ((hi1 & 0x1e) << 3) | ((hi2 & 0x1e) >> 1);
|
||||
b = lo2 | ((hi2 & 1) << 7);
|
||||
if (force_rgb) {
|
||||
buf[bytes++] = r;
|
||||
buf[bytes++] = g;
|
||||
|
|
@ -321,21 +320,20 @@ static unsigned int qcam_read_bytes(struct qcam_device *q, unsigned char *buf, u
|
|||
buf[bytes++] = r;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
} else {
|
||||
/* It's a unidirectional port */
|
||||
int i = 0, n = bytes;
|
||||
unsigned char rgb[3];
|
||||
|
||||
while (bytes < nbytes)
|
||||
{
|
||||
while (bytes < nbytes) {
|
||||
unsigned int hi, lo;
|
||||
|
||||
if (qcam_await_ready1(q, 1)) return bytes;
|
||||
if (qcam_await_ready1(q, 1))
|
||||
return bytes;
|
||||
hi = (parport_read_status(q->pport) & 0xf0);
|
||||
qcam_set_ack(q, 1);
|
||||
if (qcam_await_ready1(q, 0)) return bytes;
|
||||
if (qcam_await_ready1(q, 0))
|
||||
return bytes;
|
||||
lo = (parport_read_status(q->pport) & 0xf0);
|
||||
qcam_set_ack(q, 0);
|
||||
/* flip some bits */
|
||||
|
|
@ -374,28 +372,26 @@ static long qc_capture(struct qcam_device *q, char __user *buf, unsigned long le
|
|||
return -EFAULT;
|
||||
|
||||
/* Wait for camera to become ready */
|
||||
for (;;)
|
||||
{
|
||||
for (;;) {
|
||||
int i = qcam_get(q, 41);
|
||||
|
||||
if (i == -1) {
|
||||
qc_setup(q);
|
||||
return -EIO;
|
||||
}
|
||||
if ((i & 0x80) == 0)
|
||||
break;
|
||||
else
|
||||
schedule();
|
||||
schedule();
|
||||
}
|
||||
|
||||
if (qcam_set(q, 7, (q->mode | (is_bi_dir?1:0)) + 1))
|
||||
if (qcam_set(q, 7, (q->mode | (is_bi_dir ? 1 : 0)) + 1))
|
||||
return -EIO;
|
||||
|
||||
lines = q->height;
|
||||
pixelsperline = q->width;
|
||||
bitsperxfer = (is_bi_dir) ? 24 : 8;
|
||||
|
||||
if (is_bi_dir)
|
||||
{
|
||||
if (is_bi_dir) {
|
||||
/* Turn the port around */
|
||||
parport_data_reverse(q->pport);
|
||||
mdelay(3);
|
||||
|
|
@ -413,16 +409,17 @@ static long qc_capture(struct qcam_device *q, char __user *buf, unsigned long le
|
|||
|
||||
wantlen = lines * pixelsperline * 24 / 8;
|
||||
|
||||
while (wantlen)
|
||||
{
|
||||
while (wantlen) {
|
||||
size_t t, s;
|
||||
s = (wantlen > BUFSZ)?BUFSZ:wantlen;
|
||||
|
||||
s = (wantlen > BUFSZ) ? BUFSZ : wantlen;
|
||||
t = qcam_read_bytes(q, tmpbuf, s);
|
||||
if (outptr < len)
|
||||
{
|
||||
if (outptr < len) {
|
||||
size_t sz = len - outptr;
|
||||
if (sz > t) sz = t;
|
||||
if (__copy_to_user(buf+outptr, tmpbuf, sz))
|
||||
|
||||
if (sz > t)
|
||||
sz = t;
|
||||
if (__copy_to_user(buf + outptr, tmpbuf, sz))
|
||||
break;
|
||||
outptr += sz;
|
||||
}
|
||||
|
|
@ -434,33 +431,31 @@ static long qc_capture(struct qcam_device *q, char __user *buf, unsigned long le
|
|||
|
||||
len = outptr;
|
||||
|
||||
if (wantlen)
|
||||
{
|
||||
printk("qcam: short read.\n");
|
||||
if (wantlen) {
|
||||
printk(KERN_ERR "qcam: short read.\n");
|
||||
if (is_bi_dir)
|
||||
parport_data_forward(q->pport);
|
||||
qc_setup(q);
|
||||
return len;
|
||||
}
|
||||
|
||||
if (is_bi_dir)
|
||||
{
|
||||
if (is_bi_dir) {
|
||||
int l;
|
||||
|
||||
do {
|
||||
l = qcam_read_bytes(q, tmpbuf, 3);
|
||||
cond_resched();
|
||||
} while (l && (tmpbuf[0] == 0x7e || tmpbuf[1] == 0x7e || tmpbuf[2] == 0x7e));
|
||||
if (force_rgb) {
|
||||
if (tmpbuf[0] != 0xe || tmpbuf[1] != 0x0 || tmpbuf[2] != 0xf)
|
||||
printk("qcam: bad EOF\n");
|
||||
printk(KERN_ERR "qcam: bad EOF\n");
|
||||
} else {
|
||||
if (tmpbuf[0] != 0xf || tmpbuf[1] != 0x0 || tmpbuf[2] != 0xe)
|
||||
printk("qcam: bad EOF\n");
|
||||
printk(KERN_ERR "qcam: bad EOF\n");
|
||||
}
|
||||
qcam_set_ack(q, 0);
|
||||
if (qcam_await_ready1(q, 1))
|
||||
{
|
||||
printk("qcam: no ack after EOF\n");
|
||||
if (qcam_await_ready1(q, 1)) {
|
||||
printk(KERN_ERR "qcam: no ack after EOF\n");
|
||||
parport_data_forward(q->pport);
|
||||
qc_setup(q);
|
||||
return len;
|
||||
|
|
@ -468,27 +463,25 @@ static long qc_capture(struct qcam_device *q, char __user *buf, unsigned long le
|
|||
parport_data_forward(q->pport);
|
||||
mdelay(3);
|
||||
qcam_set_ack(q, 1);
|
||||
if (qcam_await_ready1(q, 0))
|
||||
{
|
||||
printk("qcam: no ack to port turnaround\n");
|
||||
if (qcam_await_ready1(q, 0)) {
|
||||
printk(KERN_ERR "qcam: no ack to port turnaround\n");
|
||||
qc_setup(q);
|
||||
return len;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
} else {
|
||||
int l;
|
||||
|
||||
do {
|
||||
l = qcam_read_bytes(q, tmpbuf, 1);
|
||||
cond_resched();
|
||||
} while (l && tmpbuf[0] == 0x7e);
|
||||
l = qcam_read_bytes(q, tmpbuf+1, 2);
|
||||
l = qcam_read_bytes(q, tmpbuf + 1, 2);
|
||||
if (force_rgb) {
|
||||
if (tmpbuf[0] != 0xe || tmpbuf[1] != 0x0 || tmpbuf[2] != 0xf)
|
||||
printk("qcam: bad EOF\n");
|
||||
printk(KERN_ERR "qcam: bad EOF\n");
|
||||
} else {
|
||||
if (tmpbuf[0] != 0xf || tmpbuf[1] != 0x0 || tmpbuf[2] != 0xe)
|
||||
printk("qcam: bad EOF\n");
|
||||
printk(KERN_ERR "qcam: bad EOF\n");
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -503,164 +496,166 @@ static long qc_capture(struct qcam_device *q, char __user *buf, unsigned long le
|
|||
static long qcam_do_ioctl(struct file *file, unsigned int cmd, void *arg)
|
||||
{
|
||||
struct video_device *dev = video_devdata(file);
|
||||
struct qcam_device *qcam=(struct qcam_device *)dev;
|
||||
struct qcam_device *qcam = (struct qcam_device *)dev;
|
||||
|
||||
switch(cmd)
|
||||
switch (cmd) {
|
||||
case VIDIOCGCAP:
|
||||
{
|
||||
case VIDIOCGCAP:
|
||||
{
|
||||
struct video_capability *b = arg;
|
||||
strcpy(b->name, "Quickcam");
|
||||
b->type = VID_TYPE_CAPTURE|VID_TYPE_SCALES;
|
||||
b->channels = 1;
|
||||
b->audios = 0;
|
||||
b->maxwidth = 320;
|
||||
b->maxheight = 240;
|
||||
b->minwidth = 80;
|
||||
b->minheight = 60;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCGCHAN:
|
||||
{
|
||||
struct video_channel *v = arg;
|
||||
if(v->channel!=0)
|
||||
return -EINVAL;
|
||||
v->flags=0;
|
||||
v->tuners=0;
|
||||
/* Good question.. its composite or SVHS so.. */
|
||||
v->type = VIDEO_TYPE_CAMERA;
|
||||
strcpy(v->name, "Camera");
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCSCHAN:
|
||||
{
|
||||
struct video_channel *v = arg;
|
||||
if(v->channel!=0)
|
||||
return -EINVAL;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCGTUNER:
|
||||
{
|
||||
struct video_tuner *v = arg;
|
||||
if(v->tuner)
|
||||
return -EINVAL;
|
||||
memset(v,0,sizeof(*v));
|
||||
strcpy(v->name, "Format");
|
||||
v->mode = VIDEO_MODE_AUTO;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCSTUNER:
|
||||
{
|
||||
struct video_tuner *v = arg;
|
||||
if(v->tuner)
|
||||
return -EINVAL;
|
||||
if(v->mode!=VIDEO_MODE_AUTO)
|
||||
return -EINVAL;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCGPICT:
|
||||
{
|
||||
struct video_picture *p = arg;
|
||||
p->colour=0x8000;
|
||||
p->hue=0x8000;
|
||||
p->brightness=qcam->brightness<<8;
|
||||
p->contrast=qcam->contrast<<8;
|
||||
p->whiteness=qcam->whitebal<<8;
|
||||
p->depth=24;
|
||||
p->palette=VIDEO_PALETTE_RGB24;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCSPICT:
|
||||
{
|
||||
struct video_picture *p = arg;
|
||||
struct video_capability *b = arg;
|
||||
|
||||
/*
|
||||
* Sanity check args
|
||||
*/
|
||||
if (p->depth != 24 || p->palette != VIDEO_PALETTE_RGB24)
|
||||
return -EINVAL;
|
||||
strcpy(b->name, "Quickcam");
|
||||
b->type = VID_TYPE_CAPTURE | VID_TYPE_SCALES;
|
||||
b->channels = 1;
|
||||
b->audios = 0;
|
||||
b->maxwidth = 320;
|
||||
b->maxheight = 240;
|
||||
b->minwidth = 80;
|
||||
b->minheight = 60;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCGCHAN:
|
||||
{
|
||||
struct video_channel *v = arg;
|
||||
|
||||
/*
|
||||
* Now load the camera.
|
||||
*/
|
||||
qcam->brightness = p->brightness>>8;
|
||||
qcam->contrast = p->contrast>>8;
|
||||
qcam->whitebal = p->whiteness>>8;
|
||||
|
||||
mutex_lock(&qcam->lock);
|
||||
parport_claim_or_block(qcam->pdev);
|
||||
qc_setup(qcam);
|
||||
parport_release(qcam->pdev);
|
||||
mutex_unlock(&qcam->lock);
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCSWIN:
|
||||
{
|
||||
struct video_window *vw = arg;
|
||||
|
||||
if(vw->flags)
|
||||
return -EINVAL;
|
||||
if(vw->clipcount)
|
||||
return -EINVAL;
|
||||
if(vw->height<60||vw->height>240)
|
||||
return -EINVAL;
|
||||
if(vw->width<80||vw->width>320)
|
||||
return -EINVAL;
|
||||
|
||||
qcam->width = 80;
|
||||
qcam->height = 60;
|
||||
qcam->mode = QC_DECIMATION_4;
|
||||
|
||||
if(vw->width>=160 && vw->height>=120)
|
||||
{
|
||||
qcam->width = 160;
|
||||
qcam->height = 120;
|
||||
qcam->mode = QC_DECIMATION_2;
|
||||
}
|
||||
if(vw->width>=320 && vw->height>=240)
|
||||
{
|
||||
qcam->width = 320;
|
||||
qcam->height = 240;
|
||||
qcam->mode = QC_DECIMATION_1;
|
||||
}
|
||||
qcam->mode |= QC_MILLIONS;
|
||||
#if 0
|
||||
if(vw->width>=640 && vw->height>=480)
|
||||
{
|
||||
qcam->width = 640;
|
||||
qcam->height = 480;
|
||||
qcam->mode = QC_BILLIONS | QC_DECIMATION_1;
|
||||
}
|
||||
#endif
|
||||
/* Ok we figured out what to use from our
|
||||
wide choice */
|
||||
mutex_lock(&qcam->lock);
|
||||
parport_claim_or_block(qcam->pdev);
|
||||
qc_setup(qcam);
|
||||
parport_release(qcam->pdev);
|
||||
mutex_unlock(&qcam->lock);
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCGWIN:
|
||||
{
|
||||
struct video_window *vw = arg;
|
||||
memset(vw, 0, sizeof(*vw));
|
||||
vw->width=qcam->width;
|
||||
vw->height=qcam->height;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCKEY:
|
||||
return 0;
|
||||
case VIDIOCCAPTURE:
|
||||
case VIDIOCGFBUF:
|
||||
case VIDIOCSFBUF:
|
||||
case VIDIOCGFREQ:
|
||||
case VIDIOCSFREQ:
|
||||
case VIDIOCGAUDIO:
|
||||
case VIDIOCSAUDIO:
|
||||
if (v->channel != 0)
|
||||
return -EINVAL;
|
||||
default:
|
||||
return -ENOIOCTLCMD;
|
||||
v->flags = 0;
|
||||
v->tuners = 0;
|
||||
/* Good question.. its composite or SVHS so.. */
|
||||
v->type = VIDEO_TYPE_CAMERA;
|
||||
strcpy(v->name, "Camera");
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCSCHAN:
|
||||
{
|
||||
struct video_channel *v = arg;
|
||||
|
||||
if (v->channel != 0)
|
||||
return -EINVAL;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCGTUNER:
|
||||
{
|
||||
struct video_tuner *v = arg;
|
||||
|
||||
if (v->tuner)
|
||||
return -EINVAL;
|
||||
memset(v, 0, sizeof(*v));
|
||||
strcpy(v->name, "Format");
|
||||
v->mode = VIDEO_MODE_AUTO;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCSTUNER:
|
||||
{
|
||||
struct video_tuner *v = arg;
|
||||
|
||||
if (v->tuner)
|
||||
return -EINVAL;
|
||||
if (v->mode != VIDEO_MODE_AUTO)
|
||||
return -EINVAL;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCGPICT:
|
||||
{
|
||||
struct video_picture *p = arg;
|
||||
|
||||
p->colour = 0x8000;
|
||||
p->hue = 0x8000;
|
||||
p->brightness = qcam->brightness << 8;
|
||||
p->contrast = qcam->contrast << 8;
|
||||
p->whiteness = qcam->whitebal << 8;
|
||||
p->depth = 24;
|
||||
p->palette = VIDEO_PALETTE_RGB24;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCSPICT:
|
||||
{
|
||||
struct video_picture *p = arg;
|
||||
|
||||
/*
|
||||
* Sanity check args
|
||||
*/
|
||||
if (p->depth != 24 || p->palette != VIDEO_PALETTE_RGB24)
|
||||
return -EINVAL;
|
||||
|
||||
/*
|
||||
* Now load the camera.
|
||||
*/
|
||||
qcam->brightness = p->brightness >> 8;
|
||||
qcam->contrast = p->contrast >> 8;
|
||||
qcam->whitebal = p->whiteness >> 8;
|
||||
|
||||
mutex_lock(&qcam->lock);
|
||||
parport_claim_or_block(qcam->pdev);
|
||||
qc_setup(qcam);
|
||||
parport_release(qcam->pdev);
|
||||
mutex_unlock(&qcam->lock);
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCSWIN:
|
||||
{
|
||||
struct video_window *vw = arg;
|
||||
|
||||
if (vw->flags)
|
||||
return -EINVAL;
|
||||
if (vw->clipcount)
|
||||
return -EINVAL;
|
||||
if (vw->height < 60 || vw->height > 240)
|
||||
return -EINVAL;
|
||||
if (vw->width < 80 || vw->width > 320)
|
||||
return -EINVAL;
|
||||
|
||||
qcam->width = 80;
|
||||
qcam->height = 60;
|
||||
qcam->mode = QC_DECIMATION_4;
|
||||
|
||||
if (vw->width >= 160 && vw->height >= 120) {
|
||||
qcam->width = 160;
|
||||
qcam->height = 120;
|
||||
qcam->mode = QC_DECIMATION_2;
|
||||
}
|
||||
if (vw->width >= 320 && vw->height >= 240) {
|
||||
qcam->width = 320;
|
||||
qcam->height = 240;
|
||||
qcam->mode = QC_DECIMATION_1;
|
||||
}
|
||||
qcam->mode |= QC_MILLIONS;
|
||||
#if 0
|
||||
if (vw->width >= 640 && vw->height >= 480) {
|
||||
qcam->width = 640;
|
||||
qcam->height = 480;
|
||||
qcam->mode = QC_BILLIONS | QC_DECIMATION_1;
|
||||
}
|
||||
#endif
|
||||
/* Ok we figured out what to use from our
|
||||
wide choice */
|
||||
mutex_lock(&qcam->lock);
|
||||
parport_claim_or_block(qcam->pdev);
|
||||
qc_setup(qcam);
|
||||
parport_release(qcam->pdev);
|
||||
mutex_unlock(&qcam->lock);
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCGWIN:
|
||||
{
|
||||
struct video_window *vw = arg;
|
||||
memset(vw, 0, sizeof(*vw));
|
||||
vw->width = qcam->width;
|
||||
vw->height = qcam->height;
|
||||
return 0;
|
||||
}
|
||||
case VIDIOCKEY:
|
||||
return 0;
|
||||
case VIDIOCCAPTURE:
|
||||
case VIDIOCGFBUF:
|
||||
case VIDIOCSFBUF:
|
||||
case VIDIOCGFREQ:
|
||||
case VIDIOCSFREQ:
|
||||
case VIDIOCGAUDIO:
|
||||
case VIDIOCSAUDIO:
|
||||
return -EINVAL;
|
||||
default:
|
||||
return -ENOIOCTLCMD;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -675,13 +670,13 @@ static ssize_t qcam_read(struct file *file, char __user *buf,
|
|||
size_t count, loff_t *ppos)
|
||||
{
|
||||
struct video_device *v = video_devdata(file);
|
||||
struct qcam_device *qcam=(struct qcam_device *)v;
|
||||
struct qcam_device *qcam = (struct qcam_device *)v;
|
||||
int len;
|
||||
|
||||
mutex_lock(&qcam->lock);
|
||||
parport_claim_or_block(qcam->pdev);
|
||||
/* Probably should have a semaphore against multiple users */
|
||||
len = qc_capture(qcam, buf,count);
|
||||
len = qc_capture(qcam, buf, count);
|
||||
parport_release(qcam->pdev);
|
||||
mutex_unlock(&qcam->lock);
|
||||
return len;
|
||||
|
|
@ -713,8 +708,7 @@ static const struct v4l2_file_operations qcam_fops = {
|
|||
.read = qcam_read,
|
||||
};
|
||||
|
||||
static struct video_device qcam_template=
|
||||
{
|
||||
static struct video_device qcam_template = {
|
||||
.name = "Colour QuickCam",
|
||||
.fops = &qcam_fops,
|
||||
.release = video_device_release_empty,
|
||||
|
|
@ -727,17 +721,16 @@ static struct qcam_device *qcam_init(struct parport *port)
|
|||
struct qcam_device *q;
|
||||
|
||||
q = kmalloc(sizeof(struct qcam_device), GFP_KERNEL);
|
||||
if(q==NULL)
|
||||
if (q == NULL)
|
||||
return NULL;
|
||||
|
||||
q->pport = port;
|
||||
q->pdev = parport_register_device(port, "c-qcam", NULL, NULL,
|
||||
NULL, 0, NULL);
|
||||
|
||||
q->bidirectional = (q->pport->modes & PARPORT_MODE_TRISTATE)?1:0;
|
||||
q->bidirectional = (q->pport->modes & PARPORT_MODE_TRISTATE) ? 1 : 0;
|
||||
|
||||
if (q->pdev == NULL)
|
||||
{
|
||||
if (q->pdev == NULL) {
|
||||
printk(KERN_ERR "c-qcam: couldn't register for %s.\n",
|
||||
port->name);
|
||||
kfree(q);
|
||||
|
|
@ -765,12 +758,11 @@ static int init_cqcam(struct parport *port)
|
|||
{
|
||||
struct qcam_device *qcam;
|
||||
|
||||
if (parport[0] != -1)
|
||||
{
|
||||
if (parport[0] != -1) {
|
||||
/* The user gave specific instructions */
|
||||
int i, found = 0;
|
||||
for (i = 0; i < MAX_CAMS && parport[i] != -1; i++)
|
||||
{
|
||||
|
||||
for (i = 0; i < MAX_CAMS && parport[i] != -1; i++) {
|
||||
if (parport[0] == port->number)
|
||||
found = 1;
|
||||
}
|
||||
|
|
@ -782,15 +774,14 @@ static int init_cqcam(struct parport *port)
|
|||
return -ENOSPC;
|
||||
|
||||
qcam = qcam_init(port);
|
||||
if (qcam==NULL)
|
||||
if (qcam == NULL)
|
||||
return -ENODEV;
|
||||
|
||||
parport_claim_or_block(qcam->pdev);
|
||||
|
||||
qc_reset(qcam);
|
||||
|
||||
if (probe && qc_detect(qcam)==0)
|
||||
{
|
||||
if (probe && qc_detect(qcam) == 0) {
|
||||
parport_release(qcam->pdev);
|
||||
parport_unregister_device(qcam->pdev);
|
||||
kfree(qcam);
|
||||
|
|
@ -840,14 +831,14 @@ static struct parport_driver cqcam_driver = {
|
|||
.detach = cq_detach,
|
||||
};
|
||||
|
||||
static int __init cqcam_init (void)
|
||||
static int __init cqcam_init(void)
|
||||
{
|
||||
printk(BANNER "\n");
|
||||
|
||||
return parport_register_driver(&cqcam_driver);
|
||||
}
|
||||
|
||||
static void __exit cqcam_cleanup (void)
|
||||
static void __exit cqcam_cleanup(void)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
|
|
@ -862,9 +853,9 @@ MODULE_DESCRIPTION(BANNER);
|
|||
MODULE_LICENSE("GPL");
|
||||
|
||||
/* FIXME: parport=auto would never have worked, surely? --RR */
|
||||
MODULE_PARM_DESC(parport ,"parport=<auto|n[,n]...> for port detection method\n\
|
||||
probe=<0|1|2> for camera detection method\n\
|
||||
force_rgb=<0|1> for RGB data format (default BGR)");
|
||||
MODULE_PARM_DESC(parport, "parport=<auto|n[,n]...> for port detection method\n"
|
||||
"probe=<0|1|2> for camera detection method\n"
|
||||
"force_rgb=<0|1> for RGB data format (default BGR)");
|
||||
module_param_array(parport, int, NULL, 0);
|
||||
module_param(probe, int, 0);
|
||||
module_param(force_rgb, bool, 0);
|
||||
|
|
|
|||
Loading…
Reference in New Issue