/*
* uvc_v4l2.c -- USB Video Class driver - V4L2 API
*
- * Copyright (C) 2005-2008
+ * Copyright (C) 2005-2009
* Laurent Pinchart (laurent.pinchart@skynet.be)
*
* This program is free software; you can redistribute it and/or modify
* must be grouped (for instance the Red Balance, Blue Balance and Do White
* Balance V4L2 controls use the White Balance Component UVC control) or
* otherwise translated. The approach we take here is to use a translation
- * table for the controls which can be mapped directly, and handle the others
+ * table for the controls that can be mapped directly, and handle the others
* manually.
*/
-static int uvc_v4l2_query_menu(struct uvc_video_device *video,
+static int uvc_v4l2_query_menu(struct uvc_video_chain *chain,
struct v4l2_querymenu *query_menu)
{
struct uvc_menu_info *menu_info;
struct uvc_control_mapping *mapping;
struct uvc_control *ctrl;
+ u32 index = query_menu->index;
+ u32 id = query_menu->id;
- ctrl = uvc_find_control(video, query_menu->id, &mapping);
+ ctrl = uvc_find_control(chain, query_menu->id, &mapping);
if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU)
return -EINVAL;
if (query_menu->index >= mapping->menu_count)
return -EINVAL;
+ memset(query_menu, 0, sizeof(*query_menu));
+ query_menu->id = id;
+ query_menu->index = index;
+
menu_info = &mapping->menu_info[query_menu->index];
- strncpy(query_menu->name, menu_info->name, 32);
+ strlcpy(query_menu->name, menu_info->name, sizeof query_menu->name);
return 0;
}
return interval;
}
-static int uvc_v4l2_try_format(struct uvc_video_device *video,
+static int uvc_v4l2_try_format(struct uvc_streaming *stream,
struct v4l2_format *fmt, struct uvc_streaming_control *probe,
struct uvc_format **uvc_format, struct uvc_frame **uvc_frame)
{
int ret = 0;
__u8 *fcc;
- if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (fmt->type != stream->type)
return -EINVAL;
fcc = (__u8 *)&fmt->fmt.pix.pixelformat;
fmt->fmt.pix.width, fmt->fmt.pix.height);
/* Check if the hardware supports the requested format. */
- for (i = 0; i < video->streaming->nformats; ++i) {
- format = &video->streaming->format[i];
+ for (i = 0; i < stream->nformats; ++i) {
+ format = &stream->format[i];
if (format->fcc == fmt->fmt.pix.pixelformat)
break;
}
* developers test their webcams with the Linux driver as well as with
* the Windows driver).
*/
- if (video->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS)
+ if (stream->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS)
probe->dwMaxVideoFrameSize =
- video->streaming->ctrl.dwMaxVideoFrameSize;
+ stream->ctrl.dwMaxVideoFrameSize;
- /* Probe the device */
- if ((ret = uvc_probe_video(video, probe)) < 0)
+ /* Probe the device. */
+ ret = uvc_probe_video(stream, probe);
+ if (ret < 0)
goto done;
fmt->fmt.pix.width = frame->wWidth;
return ret;
}
-static int uvc_v4l2_get_format(struct uvc_video_device *video,
+static int uvc_v4l2_get_format(struct uvc_streaming *stream,
struct v4l2_format *fmt)
{
- struct uvc_format *format = video->streaming->cur_format;
- struct uvc_frame *frame = video->streaming->cur_frame;
+ struct uvc_format *format = stream->cur_format;
+ struct uvc_frame *frame = stream->cur_frame;
- if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (fmt->type != stream->type)
return -EINVAL;
if (format == NULL || frame == NULL)
fmt->fmt.pix.height = frame->wHeight;
fmt->fmt.pix.field = V4L2_FIELD_NONE;
fmt->fmt.pix.bytesperline = format->bpp * frame->wWidth / 8;
- fmt->fmt.pix.sizeimage = video->streaming->ctrl.dwMaxVideoFrameSize;
+ fmt->fmt.pix.sizeimage = stream->ctrl.dwMaxVideoFrameSize;
fmt->fmt.pix.colorspace = format->colorspace;
fmt->fmt.pix.priv = 0;
return 0;
}
-static int uvc_v4l2_set_format(struct uvc_video_device *video,
+static int uvc_v4l2_set_format(struct uvc_streaming *stream,
struct v4l2_format *fmt)
{
struct uvc_streaming_control probe;
struct uvc_frame *frame;
int ret;
- if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (fmt->type != stream->type)
return -EINVAL;
- if (uvc_queue_streaming(&video->queue))
+ if (uvc_queue_allocated(&stream->queue))
return -EBUSY;
- ret = uvc_v4l2_try_format(video, fmt, &probe, &format, &frame);
+ ret = uvc_v4l2_try_format(stream, fmt, &probe, &format, &frame);
if (ret < 0)
return ret;
- if ((ret = uvc_commit_video(video, &probe)) < 0)
- return ret;
-
- memcpy(&video->streaming->ctrl, &probe, sizeof probe);
- video->streaming->cur_format = format;
- video->streaming->cur_frame = frame;
+ memcpy(&stream->ctrl, &probe, sizeof probe);
+ stream->cur_format = format;
+ stream->cur_frame = frame;
return 0;
}
-static int uvc_v4l2_get_streamparm(struct uvc_video_device *video,
+static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream,
struct v4l2_streamparm *parm)
{
uint32_t numerator, denominator;
- if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (parm->type != stream->type)
return -EINVAL;
- numerator = video->streaming->ctrl.dwFrameInterval;
+ numerator = stream->ctrl.dwFrameInterval;
denominator = 10000000;
uvc_simplify_fraction(&numerator, &denominator, 8, 333);
memset(parm, 0, sizeof *parm);
- parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
- parm->parm.capture.capturemode = 0;
- parm->parm.capture.timeperframe.numerator = numerator;
- parm->parm.capture.timeperframe.denominator = denominator;
- parm->parm.capture.extendedmode = 0;
- parm->parm.capture.readbuffers = 0;
+ parm->type = stream->type;
+
+ if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
+ parm->parm.capture.capturemode = 0;
+ parm->parm.capture.timeperframe.numerator = numerator;
+ parm->parm.capture.timeperframe.denominator = denominator;
+ parm->parm.capture.extendedmode = 0;
+ parm->parm.capture.readbuffers = 0;
+ } else {
+ parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
+ parm->parm.output.outputmode = 0;
+ parm->parm.output.timeperframe.numerator = numerator;
+ parm->parm.output.timeperframe.denominator = denominator;
+ }
return 0;
}
-static int uvc_v4l2_set_streamparm(struct uvc_video_device *video,
+static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream,
struct v4l2_streamparm *parm)
{
- struct uvc_frame *frame = video->streaming->cur_frame;
+ struct uvc_frame *frame = stream->cur_frame;
struct uvc_streaming_control probe;
+ struct v4l2_fract timeperframe;
uint32_t interval;
int ret;
- if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (parm->type != stream->type)
return -EINVAL;
- if (uvc_queue_streaming(&video->queue))
+ if (uvc_queue_streaming(&stream->queue))
return -EBUSY;
- memcpy(&probe, &video->streaming->ctrl, sizeof probe);
- interval = uvc_fraction_to_interval(
- parm->parm.capture.timeperframe.numerator,
- parm->parm.capture.timeperframe.denominator);
+ if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ timeperframe = parm->parm.capture.timeperframe;
+ else
+ timeperframe = parm->parm.output.timeperframe;
+
+ memcpy(&probe, &stream->ctrl, sizeof probe);
+ interval = uvc_fraction_to_interval(timeperframe.numerator,
+ timeperframe.denominator);
uvc_trace(UVC_TRACE_FORMAT, "Setting frame interval to %u/%u (%u).\n",
- parm->parm.capture.timeperframe.numerator,
- parm->parm.capture.timeperframe.denominator,
- interval);
+ timeperframe.numerator, timeperframe.denominator, interval);
probe.dwFrameInterval = uvc_try_frame_interval(frame, interval);
/* Probe the device with the new settings. */
- if ((ret = uvc_probe_video(video, &probe)) < 0)
- return ret;
-
- /* Commit the new settings. */
- if ((ret = uvc_commit_video(video, &probe)) < 0)
+ ret = uvc_probe_video(stream, &probe);
+ if (ret < 0)
return ret;
- memcpy(&video->streaming->ctrl, &probe, sizeof probe);
+ memcpy(&stream->ctrl, &probe, sizeof probe);
/* Return the actual frame period. */
- parm->parm.capture.timeperframe.numerator = probe.dwFrameInterval;
- parm->parm.capture.timeperframe.denominator = 10000000;
- uvc_simplify_fraction(&parm->parm.capture.timeperframe.numerator,
- &parm->parm.capture.timeperframe.denominator,
- 8, 333);
+ timeperframe.numerator = probe.dwFrameInterval;
+ timeperframe.denominator = 10000000;
+ uvc_simplify_fraction(&timeperframe.numerator,
+ &timeperframe.denominator, 8, 333);
+
+ if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ parm->parm.capture.timeperframe = timeperframe;
+ else
+ parm->parm.output.timeperframe = timeperframe;
return 0;
}
*
* Each open instance of a UVC device can either be in a privileged or
* unprivileged state. Only a single instance can be in a privileged state at
- * a given time. Trying to perform an operation which requires privileges will
+ * a given time. Trying to perform an operation that requires privileges will
* automatically acquire the required privileges if possible, or return -EBUSY
* otherwise. Privileges are dismissed when closing the instance.
*
- * Operations which require privileges are:
+ * Operations that require privileges are:
*
* - VIDIOC_S_INPUT
* - VIDIOC_S_PARM
/* Check if the device already has a privileged handle. */
mutex_lock(&uvc_driver.open_mutex);
- if (atomic_inc_return(&handle->device->active) != 1) {
- atomic_dec(&handle->device->active);
+ if (atomic_inc_return(&handle->stream->active) != 1) {
+ atomic_dec(&handle->stream->active);
ret = -EBUSY;
goto done;
}
static void uvc_dismiss_privileges(struct uvc_fh *handle)
{
if (handle->state == UVC_HANDLE_ACTIVE)
- atomic_dec(&handle->device->active);
+ atomic_dec(&handle->stream->active);
handle->state = UVC_HANDLE_PASSIVE;
}
* V4L2 file operations
*/
-static int uvc_v4l2_open(struct inode *inode, struct file *file)
+static int uvc_v4l2_open(struct file *file)
{
- struct uvc_video_device *video;
+ struct uvc_streaming *stream;
struct uvc_fh *handle;
int ret = 0;
uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_open\n");
mutex_lock(&uvc_driver.open_mutex);
- video = video_drvdata(file);
+ stream = video_drvdata(file);
- if (video->dev->state & UVC_DEV_DISCONNECTED) {
+ if (stream->dev->state & UVC_DEV_DISCONNECTED) {
ret = -ENODEV;
goto done;
}
- ret = usb_autopm_get_interface(video->dev->intf);
+ ret = usb_autopm_get_interface(stream->dev->intf);
if (ret < 0)
goto done;
/* Create the device handle. */
handle = kzalloc(sizeof *handle, GFP_KERNEL);
if (handle == NULL) {
- usb_autopm_put_interface(video->dev->intf);
+ usb_autopm_put_interface(stream->dev->intf);
ret = -ENOMEM;
goto done;
}
- handle->device = video;
+ if (atomic_inc_return(&stream->dev->users) == 1) {
+ ret = uvc_status_start(stream->dev);
+ if (ret < 0) {
+ usb_autopm_put_interface(stream->dev->intf);
+ atomic_dec(&stream->dev->users);
+ kfree(handle);
+ goto done;
+ }
+ }
+
+ handle->chain = stream->chain;
+ handle->stream = stream;
handle->state = UVC_HANDLE_PASSIVE;
file->private_data = handle;
- kref_get(&video->dev->kref);
+ kref_get(&stream->dev->kref);
done:
mutex_unlock(&uvc_driver.open_mutex);
return ret;
}
-static int uvc_v4l2_release(struct inode *inode, struct file *file)
+static int uvc_v4l2_release(struct file *file)
{
- struct uvc_video_device *video = video_drvdata(file);
struct uvc_fh *handle = (struct uvc_fh *)file->private_data;
+ struct uvc_streaming *stream = handle->stream;
uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_release\n");
/* Only free resources if this is a privileged handle. */
if (uvc_has_privileges(handle)) {
- uvc_video_enable(video, 0);
+ uvc_video_enable(stream, 0);
- mutex_lock(&video->queue.mutex);
- if (uvc_free_buffers(&video->queue) < 0)
+ mutex_lock(&stream->queue.mutex);
+ if (uvc_free_buffers(&stream->queue) < 0)
uvc_printk(KERN_ERR, "uvc_v4l2_release: Unable to "
"free buffers.\n");
- mutex_unlock(&video->queue.mutex);
+ mutex_unlock(&stream->queue.mutex);
}
/* Release the file handle. */
kfree(handle);
file->private_data = NULL;
- usb_autopm_put_interface(video->dev->intf);
- kref_put(&video->dev->kref, uvc_delete);
+ if (atomic_dec_return(&stream->dev->users) == 0)
+ uvc_status_stop(stream->dev);
+
+ usb_autopm_put_interface(stream->dev->intf);
+ kref_put(&stream->dev->kref, uvc_delete);
return 0;
}
-static int uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
+static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
{
struct video_device *vdev = video_devdata(file);
- struct uvc_video_device *video = video_get_drvdata(vdev);
struct uvc_fh *handle = (struct uvc_fh *)file->private_data;
- int ret = 0;
-
- if (uvc_trace_param & UVC_TRACE_IOCTL)
- v4l_printk_ioctl(cmd);
+ struct uvc_video_chain *chain = handle->chain;
+ struct uvc_streaming *stream = handle->stream;
+ long ret = 0;
switch (cmd) {
/* Query capabilities */
struct v4l2_capability *cap = arg;
memset(cap, 0, sizeof *cap);
- strncpy(cap->driver, "uvcvideo", sizeof cap->driver);
- strncpy(cap->card, vdev->name, 32);
- strncpy(cap->bus_info, video->dev->udev->bus->bus_name,
- sizeof cap->bus_info);
+ strlcpy(cap->driver, "uvcvideo", sizeof cap->driver);
+ strlcpy(cap->card, vdev->name, sizeof cap->card);
+ usb_make_path(stream->dev->udev,
+ cap->bus_info, sizeof(cap->bus_info));
cap->version = DRIVER_VERSION_NUMBER;
- cap->capabilities = V4L2_CAP_VIDEO_CAPTURE
- | V4L2_CAP_STREAMING;
+ if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE
+ | V4L2_CAP_STREAMING;
+ else
+ cap->capabilities = V4L2_CAP_VIDEO_OUTPUT
+ | V4L2_CAP_STREAMING;
break;
}
/* Get, Set & Query control */
case VIDIOC_QUERYCTRL:
- return uvc_query_v4l2_ctrl(video, arg);
+ return uvc_query_v4l2_ctrl(chain, arg);
case VIDIOC_G_CTRL:
{
memset(&xctrl, 0, sizeof xctrl);
xctrl.id = ctrl->id;
- uvc_ctrl_begin(video);
- ret = uvc_ctrl_get(video, &xctrl);
- uvc_ctrl_rollback(video);
+ ret = uvc_ctrl_begin(chain);
+ if (ret < 0)
+ return ret;
+
+ ret = uvc_ctrl_get(chain, &xctrl);
+ uvc_ctrl_rollback(chain);
if (ret >= 0)
ctrl->value = xctrl.value;
break;
xctrl.id = ctrl->id;
xctrl.value = ctrl->value;
- uvc_ctrl_begin(video);
- ret = uvc_ctrl_set(video, &xctrl);
+ uvc_ctrl_begin(chain);
+ if (ret < 0)
+ return ret;
+
+ ret = uvc_ctrl_set(chain, &xctrl);
if (ret < 0) {
- uvc_ctrl_rollback(video);
+ uvc_ctrl_rollback(chain);
return ret;
}
- ret = uvc_ctrl_commit(video);
+ ret = uvc_ctrl_commit(chain);
break;
}
case VIDIOC_QUERYMENU:
- return uvc_v4l2_query_menu(video, arg);
+ return uvc_v4l2_query_menu(chain, arg);
case VIDIOC_G_EXT_CTRLS:
{
struct v4l2_ext_control *ctrl = ctrls->controls;
unsigned int i;
- uvc_ctrl_begin(video);
+ ret = uvc_ctrl_begin(chain);
+ if (ret < 0)
+ return ret;
+
for (i = 0; i < ctrls->count; ++ctrl, ++i) {
- ret = uvc_ctrl_get(video, ctrl);
+ ret = uvc_ctrl_get(chain, ctrl);
if (ret < 0) {
- uvc_ctrl_rollback(video);
+ uvc_ctrl_rollback(chain);
ctrls->error_idx = i;
return ret;
}
}
ctrls->error_idx = 0;
- ret = uvc_ctrl_rollback(video);
+ ret = uvc_ctrl_rollback(chain);
break;
}
struct v4l2_ext_control *ctrl = ctrls->controls;
unsigned int i;
- ret = uvc_ctrl_begin(video);
+ ret = uvc_ctrl_begin(chain);
if (ret < 0)
return ret;
for (i = 0; i < ctrls->count; ++ctrl, ++i) {
- ret = uvc_ctrl_set(video, ctrl);
+ ret = uvc_ctrl_set(chain, ctrl);
if (ret < 0) {
- uvc_ctrl_rollback(video);
+ uvc_ctrl_rollback(chain);
ctrls->error_idx = i;
return ret;
}
ctrls->error_idx = 0;
if (cmd == VIDIOC_S_EXT_CTRLS)
- ret = uvc_ctrl_commit(video);
+ ret = uvc_ctrl_commit(chain);
else
- ret = uvc_ctrl_rollback(video);
+ ret = uvc_ctrl_rollback(chain);
break;
}
/* Get, Set & Enum input */
case VIDIOC_ENUMINPUT:
{
- const struct uvc_entity *selector = video->selector;
+ const struct uvc_entity *selector = chain->selector;
struct v4l2_input *input = arg;
struct uvc_entity *iterm = NULL;
u32 index = input->index;
int pin = 0;
if (selector == NULL ||
- (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) {
+ (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) {
if (index != 0)
return -EINVAL;
- iterm = list_first_entry(&video->iterms,
+ iterm = list_first_entry(&chain->iterms,
struct uvc_entity, chain);
pin = iterm->id;
} else if (pin < selector->selector.bNrInPins) {
pin = selector->selector.baSourceID[index];
- list_for_each_entry(iterm, video->iterms.next, chain) {
+ list_for_each_entry(iterm, chain->iterms.next, chain) {
if (iterm->id == pin)
break;
}
memset(input, 0, sizeof *input);
input->index = index;
- strncpy(input->name, iterm->name, sizeof input->name);
- if (UVC_ENTITY_TYPE(iterm) == ITT_CAMERA)
+ strlcpy(input->name, iterm->name, sizeof input->name);
+ if (UVC_ENTITY_TYPE(iterm) == UVC_ITT_CAMERA)
input->type = V4L2_INPUT_TYPE_CAMERA;
break;
}
{
u8 input;
- if (video->selector == NULL ||
- (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) {
+ if (chain->selector == NULL ||
+ (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) {
*(int *)arg = 0;
break;
}
- ret = uvc_query_ctrl(video->dev, GET_CUR, video->selector->id,
- video->dev->intfnum, SU_INPUT_SELECT_CONTROL,
- &input, 1);
+ ret = uvc_query_ctrl(chain->dev, UVC_GET_CUR,
+ chain->selector->id, chain->dev->intfnum,
+ UVC_SU_INPUT_SELECT_CONTROL, &input, 1);
if (ret < 0)
return ret;
case VIDIOC_S_INPUT:
{
- u8 input = *(u32 *)arg + 1;
+ u32 input = *(u32 *)arg + 1;
if ((ret = uvc_acquire_privileges(handle)) < 0)
return ret;
- if (video->selector == NULL ||
- (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) {
+ if (chain->selector == NULL ||
+ (chain->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) {
if (input != 1)
return -EINVAL;
break;
}
- if (input > video->selector->selector.bNrInPins)
+ if (input == 0 || input > chain->selector->selector.bNrInPins)
return -EINVAL;
- return uvc_query_ctrl(video->dev, SET_CUR, video->selector->id,
- video->dev->intfnum, SU_INPUT_SELECT_CONTROL,
- &input, 1);
+ return uvc_query_ctrl(chain->dev, UVC_SET_CUR,
+ chain->selector->id, chain->dev->intfnum,
+ UVC_SU_INPUT_SELECT_CONTROL, &input, 1);
}
/* Try, Get, Set & Enum format */
{
struct v4l2_fmtdesc *fmt = arg;
struct uvc_format *format;
+ enum v4l2_buf_type type = fmt->type;
+ __u32 index = fmt->index;
- if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
- fmt->index >= video->streaming->nformats)
+ if (fmt->type != stream->type ||
+ fmt->index >= stream->nformats)
return -EINVAL;
- format = &video->streaming->format[fmt->index];
+ memset(fmt, 0, sizeof(*fmt));
+ fmt->index = index;
+ fmt->type = type;
+
+ format = &stream->format[fmt->index];
fmt->flags = 0;
if (format->flags & UVC_FMT_FLAG_COMPRESSED)
fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
- strncpy(fmt->description, format->name,
+ strlcpy(fmt->description, format->name,
sizeof fmt->description);
fmt->description[sizeof fmt->description - 1] = 0;
fmt->pixelformat = format->fcc;
if ((ret = uvc_acquire_privileges(handle)) < 0)
return ret;
- return uvc_v4l2_try_format(video, arg, &probe, NULL, NULL);
+ return uvc_v4l2_try_format(stream, arg, &probe, NULL, NULL);
}
case VIDIOC_S_FMT:
if ((ret = uvc_acquire_privileges(handle)) < 0)
return ret;
- return uvc_v4l2_set_format(video, arg);
+ return uvc_v4l2_set_format(stream, arg);
case VIDIOC_G_FMT:
- return uvc_v4l2_get_format(video, arg);
+ return uvc_v4l2_get_format(stream, arg);
/* Frame size enumeration */
case VIDIOC_ENUM_FRAMESIZES:
int i;
/* Look for the given pixel format */
- for (i = 0; i < video->streaming->nformats; i++) {
- if (video->streaming->format[i].fcc ==
+ for (i = 0; i < stream->nformats; i++) {
+ if (stream->format[i].fcc ==
fsize->pixel_format) {
- format = &video->streaming->format[i];
+ format = &stream->format[i];
break;
}
}
int i;
/* Look for the given pixel format and frame size */
- for (i = 0; i < video->streaming->nformats; i++) {
- if (video->streaming->format[i].fcc ==
+ for (i = 0; i < stream->nformats; i++) {
+ if (stream->format[i].fcc ==
fival->pixel_format) {
- format = &video->streaming->format[i];
+ format = &stream->format[i];
break;
}
}
/* Get & Set streaming parameters */
case VIDIOC_G_PARM:
- return uvc_v4l2_get_streamparm(video, arg);
+ return uvc_v4l2_get_streamparm(stream, arg);
case VIDIOC_S_PARM:
if ((ret = uvc_acquire_privileges(handle)) < 0)
return ret;
- return uvc_v4l2_set_streamparm(video, arg);
+ return uvc_v4l2_set_streamparm(stream, arg);
/* Cropping and scaling */
case VIDIOC_CROPCAP:
{
struct v4l2_cropcap *ccap = arg;
- struct uvc_frame *frame = video->streaming->cur_frame;
+ struct uvc_frame *frame = stream->cur_frame;
- if (ccap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (ccap->type != stream->type)
return -EINVAL;
ccap->bounds.left = 0;
{
struct v4l2_requestbuffers *rb = arg;
unsigned int bufsize =
- video->streaming->ctrl.dwMaxVideoFrameSize;
+ stream->ctrl.dwMaxVideoFrameSize;
- if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ if (rb->type != stream->type ||
rb->memory != V4L2_MEMORY_MMAP)
return -EINVAL;
if ((ret = uvc_acquire_privileges(handle)) < 0)
return ret;
- ret = uvc_alloc_buffers(&video->queue, rb->count, bufsize);
+ ret = uvc_alloc_buffers(&stream->queue, rb->count, bufsize);
if (ret < 0)
return ret;
{
struct v4l2_buffer *buf = arg;
- if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (buf->type != stream->type)
return -EINVAL;
if (!uvc_has_privileges(handle))
return -EBUSY;
- return uvc_query_buffer(&video->queue, buf);
+ return uvc_query_buffer(&stream->queue, buf);
}
case VIDIOC_QBUF:
if (!uvc_has_privileges(handle))
return -EBUSY;
- return uvc_queue_buffer(&video->queue, arg);
+ return uvc_queue_buffer(&stream->queue, arg);
case VIDIOC_DQBUF:
if (!uvc_has_privileges(handle))
return -EBUSY;
- return uvc_dequeue_buffer(&video->queue, arg,
+ return uvc_dequeue_buffer(&stream->queue, arg,
file->f_flags & O_NONBLOCK);
case VIDIOC_STREAMON:
{
int *type = arg;
- if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (*type != stream->type)
return -EINVAL;
if (!uvc_has_privileges(handle))
return -EBUSY;
- if ((ret = uvc_video_enable(video, 1)) < 0)
+ ret = uvc_video_enable(stream, 1);
+ if (ret < 0)
return ret;
break;
}
{
int *type = arg;
- if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (*type != stream->type)
return -EINVAL;
if (!uvc_has_privileges(handle))
return -EBUSY;
- return uvc_video_enable(video, 0);
+ return uvc_video_enable(stream, 0);
}
/* Analog video standards make no sense for digital cameras. */
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- info = kmalloc(sizeof *info, GFP_KERNEL);
+ info = kzalloc(sizeof *info, GFP_KERNEL);
if (info == NULL)
return -ENOMEM;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- map = kmalloc(sizeof *map, GFP_KERNEL);
+ map = kzalloc(sizeof *map, GFP_KERNEL);
if (map == NULL)
return -ENOMEM;
}
case UVCIOC_CTRL_GET:
- return uvc_xu_ctrl_query(video, arg, 0);
+ return uvc_xu_ctrl_query(chain, arg, 0);
case UVCIOC_CTRL_SET:
- return uvc_xu_ctrl_query(video, arg, 1);
+ return uvc_xu_ctrl_query(chain, arg, 1);
default:
if ((ret = v4l_compat_translate_ioctl(file, cmd, arg,
return ret;
}
-static int uvc_v4l2_ioctl(struct inode *inode, struct file *file,
+static long uvc_v4l2_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_ioctl\n");
+ if (uvc_trace_param & UVC_TRACE_IOCTL) {
+ uvc_printk(KERN_DEBUG, "uvc_v4l2_ioctl(");
+ v4l_printk_ioctl(cmd);
+ printk(")\n");
+ }
+
return video_usercopy(file, cmd, arg, uvc_v4l2_do_ioctl);
}
buffer->vma_use_count--;
}
-static struct vm_operations_struct uvc_vm_ops = {
+static const struct vm_operations_struct uvc_vm_ops = {
.open = uvc_vm_open,
.close = uvc_vm_close,
};
static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct uvc_video_device *video = video_drvdata(file);
+ struct uvc_fh *handle = (struct uvc_fh *)file->private_data;
+ struct uvc_streaming *stream = handle->stream;
+ struct uvc_video_queue *queue = &stream->queue;
struct uvc_buffer *uninitialized_var(buffer);
struct page *page;
unsigned long addr, start, size;
start = vma->vm_start;
size = vma->vm_end - vma->vm_start;
- mutex_lock(&video->queue.mutex);
+ mutex_lock(&queue->mutex);
- for (i = 0; i < video->queue.count; ++i) {
- buffer = &video->queue.buffer[i];
+ for (i = 0; i < queue->count; ++i) {
+ buffer = &queue->buffer[i];
if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff)
break;
}
- if (i == video->queue.count || size != video->queue.buf_size) {
+ if (i == queue->count || size != queue->buf_size) {
ret = -EINVAL;
goto done;
}
*/
vma->vm_flags |= VM_IO;
- addr = (unsigned long)video->queue.mem + buffer->buf.m.offset;
+ addr = (unsigned long)queue->mem + buffer->buf.m.offset;
while (size > 0) {
page = vmalloc_to_page((void *)addr);
if ((ret = vm_insert_page(vma, start, page)) < 0)
uvc_vm_open(vma);
done:
- mutex_unlock(&video->queue.mutex);
+ mutex_unlock(&queue->mutex);
return ret;
}
static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait)
{
- struct uvc_video_device *video = video_drvdata(file);
+ struct uvc_fh *handle = (struct uvc_fh *)file->private_data;
+ struct uvc_streaming *stream = handle->stream;
uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_poll\n");
- return uvc_queue_poll(&video->queue, file, wait);
+ return uvc_queue_poll(&stream->queue, file, wait);
}
-struct file_operations uvc_fops = {
+const struct v4l2_file_operations uvc_fops = {
.owner = THIS_MODULE,
.open = uvc_v4l2_open,
.release = uvc_v4l2_release,
.ioctl = uvc_v4l2_ioctl,
- .compat_ioctl = v4l_compat_ioctl32,
- .llseek = no_llseek,
.read = uvc_v4l2_read,
.mmap = uvc_v4l2_mmap,
.poll = uvc_v4l2_poll,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff