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-rw-r--r--drivers/media/usb/cpia2/cpia2_v4l.c149
1 files changed, 74 insertions, 75 deletions
diff --git a/drivers/media/usb/cpia2/cpia2_v4l.c b/drivers/media/usb/cpia2/cpia2_v4l.c
index 69d5c628a797..926ecfc9b64a 100644
--- a/drivers/media/usb/cpia2/cpia2_v4l.c
+++ b/drivers/media/usb/cpia2/cpia2_v4l.c
@@ -140,10 +140,10 @@ static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count,
loff_t *off)
{
struct camera_data *cam = video_drvdata(file);
- int noblock = file->f_flags&O_NONBLOCK;
+ int noblock = file->f_flags & O_NONBLOCK;
ssize_t ret;
- if(!cam)
+ if (!cam)
return -EINVAL;
if (mutex_lock_interruptible(&cam->v4l2_lock))
@@ -153,7 +153,6 @@ static ssize_t cpia2_v4l_read(struct file *file, char __user *buf, size_t count,
return ret;
}
-
/******************************************************************************
*
* cpia2_v4l_poll
@@ -170,7 +169,6 @@ static __poll_t cpia2_v4l_poll(struct file *filp, struct poll_table_struct *wait
return res;
}
-
static int sync(struct camera_data *cam, int frame_nr)
{
struct framebuf *frame = &cam->buffers[frame_nr];
@@ -247,8 +245,8 @@ static int cpia2_querycap(struct file *file, void *fh, struct v4l2_capability *v
break;
}
- if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) <0)
- memset(vc->bus_info,0, sizeof(vc->bus_info));
+ if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) < 0)
+ memset(vc->bus_info, 0, sizeof(vc->bus_info));
return 0;
}
@@ -289,7 +287,7 @@ static int cpia2_s_input(struct file *file, void *fh, unsigned int i)
*****************************************************************************/
static int cpia2_enum_fmt_vid_cap(struct file *file, void *fh,
- struct v4l2_fmtdesc *f)
+ struct v4l2_fmtdesc *f)
{
if (f->index > 1)
return -EINVAL;
@@ -310,13 +308,13 @@ static int cpia2_enum_fmt_vid_cap(struct file *file, void *fh,
*****************************************************************************/
static int cpia2_try_fmt_vid_cap(struct file *file, void *fh,
- struct v4l2_format *f)
+ struct v4l2_format *f)
{
struct camera_data *cam = video_drvdata(file);
if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG &&
f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG)
- return -EINVAL;
+ return -EINVAL;
f->fmt.pix.field = V4L2_FIELD_NONE;
f->fmt.pix.bytesperline = 0;
@@ -371,19 +369,20 @@ static int cpia2_try_fmt_vid_cap(struct file *file, void *fh,
*****************************************************************************/
static int cpia2_s_fmt_vid_cap(struct file *file, void *_fh,
- struct v4l2_format *f)
+ struct v4l2_format *f)
{
struct camera_data *cam = video_drvdata(file);
int err, frame;
err = cpia2_try_fmt_vid_cap(file, _fh, f);
- if(err != 0)
+ if (err != 0)
return err;
cam->pixelformat = f->fmt.pix.pixelformat;
/* NOTE: This should be set to 1 for MJPEG, but some apps don't handle
- * the missing Huffman table properly. */
+ * the missing Huffman table properly.
+ */
cam->params.compression.inhibit_htables = 0;
/*f->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG;*/
@@ -421,7 +420,7 @@ static int cpia2_s_fmt_vid_cap(struct file *file, void *_fh,
*****************************************************************************/
static int cpia2_g_fmt_vid_cap(struct file *file, void *fh,
- struct v4l2_format *f)
+ struct v4l2_format *f)
{
struct camera_data *cam = video_drvdata(file);
@@ -547,9 +546,8 @@ static const struct {
};
static int cpia2_enum_framesizes(struct file *file, void *fh,
- struct v4l2_frmsizeenum *fsize)
+ struct v4l2_frmsizeenum *fsize)
{
-
if (fsize->pixel_format != V4L2_PIX_FMT_MJPEG &&
fsize->pixel_format != V4L2_PIX_FMT_JPEG)
return -EINVAL;
@@ -563,7 +561,7 @@ static int cpia2_enum_framesizes(struct file *file, void *fh,
}
static int cpia2_enum_frameintervals(struct file *file, void *fh,
- struct v4l2_frmivalenum *fival)
+ struct v4l2_frmivalenum *fival)
{
struct camera_data *cam = video_drvdata(file);
int max = ARRAY_SIZE(framerate_controls) - 1;
@@ -665,19 +663,18 @@ static int cpia2_g_jpegcomp(struct file *file, void *fh, struct v4l2_jpegcompres
parms->quality = 80; // TODO: Can this be made meaningful?
parms->jpeg_markers = V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI;
- if(!cam->params.compression.inhibit_htables) {
+ if (!cam->params.compression.inhibit_htables)
parms->jpeg_markers |= V4L2_JPEG_MARKER_DHT;
- }
parms->APPn = cam->APPn;
parms->APP_len = cam->APP_len;
- if(cam->APP_len > 0) {
+ if (cam->APP_len > 0) {
memcpy(parms->APP_data, cam->APP_data, cam->APP_len);
parms->jpeg_markers |= V4L2_JPEG_MARKER_APP;
}
parms->COM_len = cam->COM_len;
- if(cam->COM_len > 0) {
+ if (cam->COM_len > 0) {
memcpy(parms->COM_data, cam->COM_data, cam->COM_len);
parms->jpeg_markers |= JPEG_MARKER_COM;
}
@@ -698,7 +695,7 @@ static int cpia2_g_jpegcomp(struct file *file, void *fh, struct v4l2_jpegcompres
*****************************************************************************/
static int cpia2_s_jpegcomp(struct file *file, void *fh,
- const struct v4l2_jpegcompression *parms)
+ const struct v4l2_jpegcompression *parms)
{
struct camera_data *cam = video_drvdata(file);
@@ -708,9 +705,9 @@ static int cpia2_s_jpegcomp(struct file *file, void *fh,
cam->params.compression.inhibit_htables =
!(parms->jpeg_markers & V4L2_JPEG_MARKER_DHT);
- if(parms->APP_len != 0) {
- if(parms->APP_len > 0 &&
- parms->APP_len <= sizeof(cam->APP_data) &&
+ if (parms->APP_len != 0) {
+ if (parms->APP_len > 0 &&
+ parms->APP_len <= sizeof(cam->APP_data) &&
parms->APPn >= 0 && parms->APPn <= 15) {
cam->APPn = parms->APPn;
cam->APP_len = parms->APP_len;
@@ -724,9 +721,9 @@ static int cpia2_s_jpegcomp(struct file *file, void *fh,
cam->APP_len = 0;
}
- if(parms->COM_len != 0) {
- if(parms->COM_len > 0 &&
- parms->COM_len <= sizeof(cam->COM_data)) {
+ if (parms->COM_len != 0) {
+ if (parms->COM_len > 0 &&
+ parms->COM_len <= sizeof(cam->COM_data)) {
cam->COM_len = parms->COM_len;
memcpy(cam->COM_data, parms->COM_data, parms->COM_len);
} else {
@@ -751,8 +748,8 @@ static int cpia2_reqbufs(struct file *file, void *fh, struct v4l2_requestbuffers
{
struct camera_data *cam = video_drvdata(file);
- if(req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- req->memory != V4L2_MEMORY_MMAP)
+ if (req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ req->memory != V4L2_MEMORY_MMAP)
return -EINVAL;
DBG("REQBUFS requested:%d returning:%d\n", req->count, cam->num_frames);
@@ -774,8 +771,8 @@ static int cpia2_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
{
struct camera_data *cam = video_drvdata(file);
- if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- buf->index >= cam->num_frames)
+ if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ buf->index >= cam->num_frames)
return -EINVAL;
buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer;
@@ -783,7 +780,7 @@ static int cpia2_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
buf->memory = V4L2_MEMORY_MMAP;
- if(cam->mmapped)
+ if (cam->mmapped)
buf->flags = V4L2_BUF_FLAG_MAPPED;
else
buf->flags = 0;
@@ -806,8 +803,8 @@ static int cpia2_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
}
DBG("QUERYBUF index:%d offset:%d flags:%d seq:%d bytesused:%d\n",
- buf->index, buf->m.offset, buf->flags, buf->sequence,
- buf->bytesused);
+ buf->index, buf->m.offset, buf->flags, buf->sequence,
+ buf->bytesused);
return 0;
}
@@ -824,14 +821,14 @@ static int cpia2_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
{
struct camera_data *cam = video_drvdata(file);
- if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- buf->memory != V4L2_MEMORY_MMAP ||
+ if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ buf->memory != V4L2_MEMORY_MMAP ||
buf->index >= cam->num_frames)
return -EINVAL;
DBG("QBUF #%d\n", buf->index);
- if(cam->buffers[buf->index].status == FRAME_READY)
+ if (cam->buffers[buf->index].status == FRAME_READY)
cam->buffers[buf->index].status = FRAME_EMPTY;
return 0;
@@ -849,9 +846,10 @@ static int find_earliest_filled_buffer(struct camera_data *cam)
{
int i;
int found = -1;
- for (i=0; i<cam->num_frames; i++) {
- if(cam->buffers[i].status == FRAME_READY) {
- if(found < 0) {
+
+ for (i = 0; i < cam->num_frames; i++) {
+ if (cam->buffers[i].status == FRAME_READY) {
+ if (found < 0) {
found = i;
} else {
/* find which buffer is earlier */
@@ -876,22 +874,23 @@ static int cpia2_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
struct camera_data *cam = video_drvdata(file);
int frame;
- if(buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- buf->memory != V4L2_MEMORY_MMAP)
+ if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ buf->memory != V4L2_MEMORY_MMAP)
return -EINVAL;
frame = find_earliest_filled_buffer(cam);
- if(frame < 0 && file->f_flags&O_NONBLOCK)
+ if (frame < 0 && file->f_flags & O_NONBLOCK)
return -EAGAIN;
- if(frame < 0) {
+ if (frame < 0) {
/* Wait for a frame to become available */
- struct framebuf *cb=cam->curbuff;
+ struct framebuf *cb = cam->curbuff;
+
mutex_unlock(&cam->v4l2_lock);
wait_event_interruptible(cam->wq_stream,
!video_is_registered(&cam->vdev) ||
- (cb=cam->curbuff)->status == FRAME_READY);
+ (cb = cam->curbuff)->status == FRAME_READY);
mutex_lock(&cam->v4l2_lock);
if (signal_pending(current))
return -ERESTARTSYS;
@@ -900,7 +899,6 @@ static int cpia2_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
frame = cb->num;
}
-
buf->index = frame;
buf->bytesused = cam->buffers[buf->index].length;
buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE
@@ -931,7 +929,7 @@ static int cpia2_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
if (!cam->streaming) {
ret = cpia2_usb_stream_start(cam,
- cam->params.camera_state.stream_mode);
+ cam->params.camera_state.stream_mode);
if (!ret)
v4l2_ctrl_grab(cam->usb_alt, true);
}
@@ -969,7 +967,7 @@ static int cpia2_mmap(struct file *file, struct vm_area_struct *area)
return -ERESTARTSYS;
retval = cpia2_remap_buffer(cam, area);
- if(!retval)
+ if (!retval)
cam->stream_fh = file->private_data;
mutex_unlock(&cam->v4l2_lock);
return retval;
@@ -1080,39 +1078,42 @@ int cpia2_register_camera(struct camera_data *cam)
v4l2_ctrl_handler_init(hdl, 12);
v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_BRIGHTNESS,
- cam->params.pnp_id.device_type == DEVICE_STV_672 ? 1 : 0,
- 255, 1, DEFAULT_BRIGHTNESS);
+ V4L2_CID_BRIGHTNESS,
+ cam->params.pnp_id.device_type == DEVICE_STV_672 ? 1 : 0,
+ 255, 1, DEFAULT_BRIGHTNESS);
v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_CONTRAST, 0, 255, 1, DEFAULT_CONTRAST);
+ V4L2_CID_CONTRAST, 0, 255, 1, DEFAULT_CONTRAST);
v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_SATURATION, 0, 255, 1, DEFAULT_SATURATION);
+ V4L2_CID_SATURATION, 0, 255, 1, DEFAULT_SATURATION);
v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_HFLIP, 0, 1, 1, 0);
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_JPEG_ACTIVE_MARKER, 0,
- V4L2_JPEG_ACTIVE_MARKER_DHT, 0,
- V4L2_JPEG_ACTIVE_MARKER_DHT);
+ V4L2_CID_JPEG_ACTIVE_MARKER, 0,
+ V4L2_JPEG_ACTIVE_MARKER_DHT, 0,
+ V4L2_JPEG_ACTIVE_MARKER_DHT);
v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_JPEG_COMPRESSION_QUALITY, 1,
- 100, 1, 100);
+ V4L2_CID_JPEG_COMPRESSION_QUALITY, 1,
+ 100, 1, 100);
cpia2_usb_alt.def = alternate;
cam->usb_alt = v4l2_ctrl_new_custom(hdl, &cpia2_usb_alt, NULL);
/* VP5 Only */
if (cam->params.pnp_id.device_type != DEVICE_STV_672)
v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_VFLIP, 0, 1, 1, 0);
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
/* Flicker control only valid for 672 */
if (cam->params.pnp_id.device_type == DEVICE_STV_672)
v4l2_ctrl_new_std_menu(hdl, &cpia2_ctrl_ops,
- V4L2_CID_POWER_LINE_FREQUENCY,
- V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0, 0);
+ V4L2_CID_POWER_LINE_FREQUENCY,
+ V4L2_CID_POWER_LINE_FREQUENCY_60HZ,
+ 0, 0);
/* Light control only valid for the QX5 Microscope */
if (cam->params.pnp_id.product == 0x151) {
cam->top_light = v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0);
+ V4L2_CID_ILLUMINATORS_1,
+ 0, 1, 1, 0);
cam->bottom_light = v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
- V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0);
+ V4L2_CID_ILLUMINATORS_2,
+ 0, 1, 1, 0);
v4l2_ctrl_cluster(2, &cam->top_light);
}
@@ -1159,28 +1160,28 @@ void cpia2_unregister_camera(struct camera_data *cam)
*****************************************************************************/
static void __init check_parameters(void)
{
- if(buffer_size < PAGE_SIZE) {
+ if (buffer_size < PAGE_SIZE) {
buffer_size = PAGE_SIZE;
LOG("buffer_size too small, setting to %d\n", buffer_size);
- } else if(buffer_size > 1024*1024) {
+ } else if (buffer_size > 1024 * 1024) {
/* arbitrary upper limiit */
- buffer_size = 1024*1024;
+ buffer_size = 1024 * 1024;
LOG("buffer_size ridiculously large, setting to %d\n",
buffer_size);
} else {
- buffer_size += PAGE_SIZE-1;
- buffer_size &= ~(PAGE_SIZE-1);
+ buffer_size += PAGE_SIZE - 1;
+ buffer_size &= ~(PAGE_SIZE - 1);
}
- if(num_buffers < 1) {
+ if (num_buffers < 1) {
num_buffers = 1;
LOG("num_buffers too small, setting to %d\n", num_buffers);
- } else if(num_buffers > VIDEO_MAX_FRAME) {
+ } else if (num_buffers > VIDEO_MAX_FRAME) {
num_buffers = VIDEO_MAX_FRAME;
LOG("num_buffers too large, setting to %d\n", num_buffers);
}
- if(alternate < USBIF_ISO_1 || alternate > USBIF_ISO_6) {
+ if (alternate < USBIF_ISO_1 || alternate > USBIF_ISO_6) {
alternate = DEFAULT_ALT;
LOG("alternate specified is invalid, using %d\n", alternate);
}
@@ -1197,7 +1198,6 @@ static void __init check_parameters(void)
/************ Module Stuff ***************/
-
/******************************************************************************
*
* cpia2_init/module_init
@@ -1211,7 +1211,6 @@ static int __init cpia2_init(void)
return cpia2_usb_init();
}
-
/******************************************************************************
*
* cpia2_exit/module_exit
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 07:34:38 +0100