[media] rename most media/video usb drivers to media/usb

Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 1267 deletions

diff --git a/drivers/media/video/cpia2/cpia2_v4l.c b/drivers/media/video/cpia2/cpia2_v4l.c
deleted file mode 100644
index 5ca6f44b4c63..000000000000
--- a/drivers/media/video/cpia2/cpia2_v4l.c
+++ /dev/null
@@ -1,1267 +0,0 @@
-/****************************************************************************
- *
- *  Filename: cpia2_v4l.c
- *
- *  Copyright 2001, STMicrolectronics, Inc.
- *      Contact:  steve.miller@st.com
- *  Copyright 2001,2005, Scott J. Bertin <scottbertin@yahoo.com>
- *
- *  Description:
- *     This is a USB driver for CPia2 based video cameras.
- *     The infrastructure of this driver is based on the cpia usb driver by
- *     Jochen Scharrlach and Johannes Erdfeldt.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *  Stripped of 2.4 stuff ready for main kernel submit by
- *		Alan Cox <alan@lxorguk.ukuu.org.uk>
- ****************************************************************************/
-
-#define CPIA_VERSION "3.0.1"
-
-#include <linux/module.h>
-#include <linux/time.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/videodev2.h>
-#include <linux/stringify.h>
-#include <media/v4l2-ioctl.h>
-#include <media/v4l2-event.h>
-
-#include "cpia2.h"
-
-static int video_nr = -1;
-module_param(video_nr, int, 0);
-MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)");
-
-static int buffer_size = 68 * 1024;
-module_param(buffer_size, int, 0);
-MODULE_PARM_DESC(buffer_size, "Size for each frame buffer in bytes (default 68k)");
-
-static int num_buffers = 3;
-module_param(num_buffers, int, 0);
-MODULE_PARM_DESC(num_buffers, "Number of frame buffers (1-"
-		 __stringify(VIDEO_MAX_FRAME) ", default 3)");
-
-static int alternate = DEFAULT_ALT;
-module_param(alternate, int, 0);
-MODULE_PARM_DESC(alternate, "USB Alternate (" __stringify(USBIF_ISO_1) "-"
-		 __stringify(USBIF_ISO_6) ", default "
-		 __stringify(DEFAULT_ALT) ")");
-
-static int flicker_mode;
-module_param(flicker_mode, int, 0);
-MODULE_PARM_DESC(flicker_mode, "Flicker frequency (0 (disabled), " __stringify(50) " or "
-		 __stringify(60) ", default 0)");
-
-MODULE_AUTHOR("Steve Miller (STMicroelectronics) <steve.miller@st.com>");
-MODULE_DESCRIPTION("V4L-driver for STMicroelectronics CPiA2 based cameras");
-MODULE_SUPPORTED_DEVICE("video");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(CPIA_VERSION);
-
-#define ABOUT "V4L-Driver for Vision CPiA2 based cameras"
-#define CPIA2_CID_USB_ALT (V4L2_CID_USER_BASE | 0xf000)
-
-/******************************************************************************
- *
- *  cpia2_open
- *
- *****************************************************************************/
-static int cpia2_open(struct file *file)
-{
-	struct camera_data *cam = video_drvdata(file);
-	int retval;
-
-	if (mutex_lock_interruptible(&cam->v4l2_lock))
-		return -ERESTARTSYS;
-	retval = v4l2_fh_open(file);
-	if (retval)
-		goto open_unlock;
-
-	if (v4l2_fh_is_singular_file(file)) {
-		if (cpia2_allocate_buffers(cam)) {
-			v4l2_fh_release(file);
-			retval = -ENOMEM;
-			goto open_unlock;
-		}
-
-		/* reset the camera */
-		if (cpia2_reset_camera(cam) < 0) {
-			v4l2_fh_release(file);
-			retval = -EIO;
-			goto open_unlock;
-		}
-
-		cam->APP_len = 0;
-		cam->COM_len = 0;
-	}
-
-	cpia2_dbg_dump_registers(cam);
-open_unlock:
-	mutex_unlock(&cam->v4l2_lock);
-	return retval;
-}
-
-/******************************************************************************
- *
- *  cpia2_close
- *
- *****************************************************************************/
-static int cpia2_close(struct file *file)
-{
-	struct video_device *dev = video_devdata(file);
-	struct camera_data *cam = video_get_drvdata(dev);
-
-	mutex_lock(&cam->v4l2_lock);
-	if (video_is_registered(&cam->vdev) && v4l2_fh_is_singular_file(file)) {
-		cpia2_usb_stream_stop(cam);
-
-		/* save camera state for later open */
-		cpia2_save_camera_state(cam);
-
-		cpia2_set_low_power(cam);
-		cpia2_free_buffers(cam);
-	}
-
-	if (cam->stream_fh == file->private_data) {
-		cam->stream_fh = NULL;
-		cam->mmapped = 0;
-	}
-	mutex_unlock(&cam->v4l2_lock);
-	return v4l2_fh_release(file);
-}
-
-/******************************************************************************
- *
- *  cpia2_v4l_read
- *
- *****************************************************************************/
-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;
-	ssize_t ret;
-
-	if(!cam)
-		return -EINVAL;
-
-	if (mutex_lock_interruptible(&cam->v4l2_lock))
-		return -ERESTARTSYS;
-	ret = cpia2_read(cam, buf, count, noblock);
-	mutex_unlock(&cam->v4l2_lock);
-	return ret;
-}
-
-
-/******************************************************************************
- *
- *  cpia2_v4l_poll
- *
- *****************************************************************************/
-static unsigned int cpia2_v4l_poll(struct file *filp, struct poll_table_struct *wait)
-{
-	struct camera_data *cam = video_drvdata(filp);
-	unsigned int res;
-
-	mutex_lock(&cam->v4l2_lock);
-	res = cpia2_poll(cam, filp, wait);
-	mutex_unlock(&cam->v4l2_lock);
-	return res;
-}
-
-
-static int sync(struct camera_data *cam, int frame_nr)
-{
-	struct framebuf *frame = &cam->buffers[frame_nr];
-
-	while (1) {
-		if (frame->status == FRAME_READY)
-			return 0;
-
-		if (!cam->streaming) {
-			frame->status = FRAME_READY;
-			frame->length = 0;
-			return 0;
-		}
-
-		mutex_unlock(&cam->v4l2_lock);
-		wait_event_interruptible(cam->wq_stream,
-					 !cam->streaming ||
-					 frame->status == FRAME_READY);
-		mutex_lock(&cam->v4l2_lock);
-		if (signal_pending(current))
-			return -ERESTARTSYS;
-		if (!video_is_registered(&cam->vdev))
-			return -ENOTTY;
-	}
-}
-
-/******************************************************************************
- *
- *  ioctl_querycap
- *
- *  V4L2 device capabilities
- *
- *****************************************************************************/
-
-static int cpia2_querycap(struct file *file, void *fh, struct v4l2_capability *vc)
-{
-	struct camera_data *cam = video_drvdata(file);
-
-	strcpy(vc->driver, "cpia2");
-
-	if (cam->params.pnp_id.product == 0x151)
-		strcpy(vc->card, "QX5 Microscope");
-	else
-		strcpy(vc->card, "CPiA2 Camera");
-	switch (cam->params.pnp_id.device_type) {
-	case DEVICE_STV_672:
-		strcat(vc->card, " (672/");
-		break;
-	case DEVICE_STV_676:
-		strcat(vc->card, " (676/");
-		break;
-	default:
-		strcat(vc->card, " (XXX/");
-		break;
-	}
-	switch (cam->params.version.sensor_flags) {
-	case CPIA2_VP_SENSOR_FLAGS_404:
-		strcat(vc->card, "404)");
-		break;
-	case CPIA2_VP_SENSOR_FLAGS_407:
-		strcat(vc->card, "407)");
-		break;
-	case CPIA2_VP_SENSOR_FLAGS_409:
-		strcat(vc->card, "409)");
-		break;
-	case CPIA2_VP_SENSOR_FLAGS_410:
-		strcat(vc->card, "410)");
-		break;
-	case CPIA2_VP_SENSOR_FLAGS_500:
-		strcat(vc->card, "500)");
-		break;
-	default:
-		strcat(vc->card, "XXX)");
-		break;
-	}
-
-	if (usb_make_path(cam->dev, vc->bus_info, sizeof(vc->bus_info)) <0)
-		memset(vc->bus_info,0, sizeof(vc->bus_info));
-
-	vc->device_caps = V4L2_CAP_VIDEO_CAPTURE |
-			   V4L2_CAP_READWRITE |
-			   V4L2_CAP_STREAMING;
-	vc->capabilities = vc->device_caps |
-			   V4L2_CAP_DEVICE_CAPS;
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_input
- *
- *  V4L2 input get/set/enumerate
- *
- *****************************************************************************/
-
-static int cpia2_enum_input(struct file *file, void *fh, struct v4l2_input *i)
-{
-	if (i->index)
-		return -EINVAL;
-	strcpy(i->name, "Camera");
-	i->type = V4L2_INPUT_TYPE_CAMERA;
-	return 0;
-}
-
-static int cpia2_g_input(struct file *file, void *fh, unsigned int *i)
-{
-	*i = 0;
-	return 0;
-}
-
-static int cpia2_s_input(struct file *file, void *fh, unsigned int i)
-{
-	return i ? -EINVAL : 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_enum_fmt
- *
- *  V4L2 format enumerate
- *
- *****************************************************************************/
-
-static int cpia2_enum_fmt_vid_cap(struct file *file, void *fh,
-					    struct v4l2_fmtdesc *f)
-{
-	int index = f->index;
-
-	if (index < 0 || index > 1)
-	       return -EINVAL;
-
-	memset(f, 0, sizeof(*f));
-	f->index = index;
-	f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	f->flags = V4L2_FMT_FLAG_COMPRESSED;
-	switch(index) {
-	case 0:
-		strcpy(f->description, "MJPEG");
-		f->pixelformat = V4L2_PIX_FMT_MJPEG;
-		break;
-	case 1:
-		strcpy(f->description, "JPEG");
-		f->pixelformat = V4L2_PIX_FMT_JPEG;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_try_fmt
- *
- *  V4L2 format try
- *
- *****************************************************************************/
-
-static int cpia2_try_fmt_vid_cap(struct file *file, void *fh,
-					  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;
-
-	f->fmt.pix.field = V4L2_FIELD_NONE;
-	f->fmt.pix.bytesperline = 0;
-	f->fmt.pix.sizeimage = cam->frame_size;
-	f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
-	f->fmt.pix.priv = 0;
-
-	switch (cpia2_match_video_size(f->fmt.pix.width, f->fmt.pix.height)) {
-	case VIDEOSIZE_VGA:
-		f->fmt.pix.width = 640;
-		f->fmt.pix.height = 480;
-		break;
-	case VIDEOSIZE_CIF:
-		f->fmt.pix.width = 352;
-		f->fmt.pix.height = 288;
-		break;
-	case VIDEOSIZE_QVGA:
-		f->fmt.pix.width = 320;
-		f->fmt.pix.height = 240;
-		break;
-	case VIDEOSIZE_288_216:
-		f->fmt.pix.width = 288;
-		f->fmt.pix.height = 216;
-		break;
-	case VIDEOSIZE_256_192:
-		f->fmt.pix.width = 256;
-		f->fmt.pix.height = 192;
-		break;
-	case VIDEOSIZE_224_168:
-		f->fmt.pix.width = 224;
-		f->fmt.pix.height = 168;
-		break;
-	case VIDEOSIZE_192_144:
-		f->fmt.pix.width = 192;
-		f->fmt.pix.height = 144;
-		break;
-	case VIDEOSIZE_QCIF:
-	default:
-		f->fmt.pix.width = 176;
-		f->fmt.pix.height = 144;
-		break;
-	}
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_set_fmt
- *
- *  V4L2 format set
- *
- *****************************************************************************/
-
-static int cpia2_s_fmt_vid_cap(struct file *file, void *_fh,
-					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)
-		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. */
-	cam->params.compression.inhibit_htables = 0;
-		/*f->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG;*/
-
-	/* we set the video window to something smaller or equal to what
-	 * is requested by the user???
-	 */
-	DBG("Requested width = %d, height = %d\n",
-	    f->fmt.pix.width, f->fmt.pix.height);
-	if (f->fmt.pix.width != cam->width ||
-	    f->fmt.pix.height != cam->height) {
-		cam->width = f->fmt.pix.width;
-		cam->height = f->fmt.pix.height;
-		cam->params.roi.width = f->fmt.pix.width;
-		cam->params.roi.height = f->fmt.pix.height;
-		cpia2_set_format(cam);
-	}
-
-	for (frame = 0; frame < cam->num_frames; ++frame) {
-		if (cam->buffers[frame].status == FRAME_READING)
-			if ((err = sync(cam, frame)) < 0)
-				return err;
-
-		cam->buffers[frame].status = FRAME_EMPTY;
-	}
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_get_fmt
- *
- *  V4L2 format get
- *
- *****************************************************************************/
-
-static int cpia2_g_fmt_vid_cap(struct file *file, void *fh,
-					struct v4l2_format *f)
-{
-	struct camera_data *cam = video_drvdata(file);
-
-	f->fmt.pix.width = cam->width;
-	f->fmt.pix.height = cam->height;
-	f->fmt.pix.pixelformat = cam->pixelformat;
-	f->fmt.pix.field = V4L2_FIELD_NONE;
-	f->fmt.pix.bytesperline = 0;
-	f->fmt.pix.sizeimage = cam->frame_size;
-	f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
-	f->fmt.pix.priv = 0;
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_cropcap
- *
- *  V4L2 query cropping capabilities
- *  NOTE: cropping is currently disabled
- *
- *****************************************************************************/
-
-static int cpia2_cropcap(struct file *file, void *fh, struct v4l2_cropcap *c)
-{
-	struct camera_data *cam = video_drvdata(file);
-
-	if (c->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-	       return -EINVAL;
-
-	c->bounds.left = 0;
-	c->bounds.top = 0;
-	c->bounds.width = cam->width;
-	c->bounds.height = cam->height;
-	c->defrect.left = 0;
-	c->defrect.top = 0;
-	c->defrect.width = cam->width;
-	c->defrect.height = cam->height;
-	c->pixelaspect.numerator = 1;
-	c->pixelaspect.denominator = 1;
-
-	return 0;
-}
-
-struct framerate_info {
-	int value;
-	struct v4l2_fract period;
-};
-
-static const struct framerate_info framerate_controls[] = {
-	{ CPIA2_VP_FRAMERATE_6_25, { 4, 25 } },
-	{ CPIA2_VP_FRAMERATE_7_5,  { 2, 15 } },
-	{ CPIA2_VP_FRAMERATE_12_5, { 2, 25 } },
-	{ CPIA2_VP_FRAMERATE_15,   { 1, 15 } },
-	{ CPIA2_VP_FRAMERATE_25,   { 1, 25 } },
-	{ CPIA2_VP_FRAMERATE_30,   { 1, 30 } },
-};
-
-static int cpia2_g_parm(struct file *file, void *fh, struct v4l2_streamparm *p)
-{
-	struct camera_data *cam = video_drvdata(file);
-	struct v4l2_captureparm *cap = &p->parm.capture;
-	int i;
-
-	if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-
-	cap->capability = V4L2_CAP_TIMEPERFRAME;
-	cap->readbuffers = cam->num_frames;
-	for (i = 0; i < ARRAY_SIZE(framerate_controls); i++)
-		if (cam->params.vp_params.frame_rate == framerate_controls[i].value) {
-			cap->timeperframe = framerate_controls[i].period;
-			break;
-		}
-	return 0;
-}
-
-static int cpia2_s_parm(struct file *file, void *fh, struct v4l2_streamparm *p)
-{
-	struct camera_data *cam = video_drvdata(file);
-	struct v4l2_captureparm *cap = &p->parm.capture;
-	struct v4l2_fract tpf = cap->timeperframe;
-	int max = ARRAY_SIZE(framerate_controls) - 1;
-	int ret;
-	int i;
-
-	ret = cpia2_g_parm(file, fh, p);
-	if (ret || !tpf.denominator || !tpf.numerator)
-		return ret;
-
-	/* Maximum 15 fps for this model */
-	if (cam->params.pnp_id.device_type == DEVICE_STV_672 &&
-	    cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500)
-		max -= 2;
-	for (i = 0; i <= max; i++) {
-		struct v4l2_fract f1 = tpf;
-		struct v4l2_fract f2 = framerate_controls[i].period;
-
-		f1.numerator *= f2.denominator;
-		f2.numerator *= f1.denominator;
-		if (f1.numerator >= f2.numerator)
-			break;
-	}
-	if (i > max)
-		i = max;
-	cap->timeperframe = framerate_controls[i].period;
-	return cpia2_set_fps(cam, framerate_controls[i].value);
-}
-
-static const struct {
-	u32 width;
-	u32 height;
-} cpia2_framesizes[] = {
-	{ 640, 480 },
-	{ 352, 288 },
-	{ 320, 240 },
-	{ 288, 216 },
-	{ 256, 192 },
-	{ 224, 168 },
-	{ 192, 144 },
-	{ 176, 144 },
-};
-
-static int cpia2_enum_framesizes(struct file *file, void *fh,
-					 struct v4l2_frmsizeenum *fsize)
-{
-
-	if (fsize->pixel_format != V4L2_PIX_FMT_MJPEG &&
-	    fsize->pixel_format != V4L2_PIX_FMT_JPEG)
-		return -EINVAL;
-	if (fsize->index >= ARRAY_SIZE(cpia2_framesizes))
-		return -EINVAL;
-	fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
-	fsize->discrete.width = cpia2_framesizes[fsize->index].width;
-	fsize->discrete.height = cpia2_framesizes[fsize->index].height;
-
-	return 0;
-}
-
-static int cpia2_enum_frameintervals(struct file *file, void *fh,
-					   struct v4l2_frmivalenum *fival)
-{
-	struct camera_data *cam = video_drvdata(file);
-	int max = ARRAY_SIZE(framerate_controls) - 1;
-	int i;
-
-	if (fival->pixel_format != V4L2_PIX_FMT_MJPEG &&
-	    fival->pixel_format != V4L2_PIX_FMT_JPEG)
-		return -EINVAL;
-
-	/* Maximum 15 fps for this model */
-	if (cam->params.pnp_id.device_type == DEVICE_STV_672 &&
-	    cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500)
-		max -= 2;
-	if (fival->index > max)
-		return -EINVAL;
-	for (i = 0; i < ARRAY_SIZE(cpia2_framesizes); i++)
-		if (fival->width == cpia2_framesizes[i].width &&
-		    fival->height == cpia2_framesizes[i].height)
-			break;
-	if (i == ARRAY_SIZE(cpia2_framesizes))
-		return -EINVAL;
-	fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
-	fival->discrete = framerate_controls[fival->index].period;
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_s_ctrl
- *
- *  V4L2 set the value of a control variable
- *
- *****************************************************************************/
-
-static int cpia2_s_ctrl(struct v4l2_ctrl *ctrl)
-{
-	struct camera_data *cam =
-		container_of(ctrl->handler, struct camera_data, hdl);
-	static const int flicker_table[] = {
-		NEVER_FLICKER,
-		FLICKER_50,
-		FLICKER_60,
-	};
-
-	DBG("Set control id:%d, value:%d\n", ctrl->id, ctrl->val);
-
-	switch (ctrl->id) {
-	case V4L2_CID_BRIGHTNESS:
-		cpia2_set_brightness(cam, ctrl->val);
-		break;
-	case V4L2_CID_CONTRAST:
-		cpia2_set_contrast(cam, ctrl->val);
-		break;
-	case V4L2_CID_SATURATION:
-		cpia2_set_saturation(cam, ctrl->val);
-		break;
-	case V4L2_CID_HFLIP:
-		cpia2_set_property_mirror(cam, ctrl->val);
-		break;
-	case V4L2_CID_VFLIP:
-		cpia2_set_property_flip(cam, ctrl->val);
-		break;
-	case V4L2_CID_POWER_LINE_FREQUENCY:
-		return cpia2_set_flicker_mode(cam, flicker_table[ctrl->val]);
-	case V4L2_CID_ILLUMINATORS_1:
-		return cpia2_set_gpio(cam, (cam->top_light->val << 6) |
-					   (cam->bottom_light->val << 7));
-	case V4L2_CID_JPEG_ACTIVE_MARKER:
-		cam->params.compression.inhibit_htables =
-			!(ctrl->val & V4L2_JPEG_ACTIVE_MARKER_DHT);
-		break;
-	case V4L2_CID_JPEG_COMPRESSION_QUALITY:
-		cam->params.vc_params.quality = ctrl->val;
-		break;
-	case CPIA2_CID_USB_ALT:
-		cam->params.camera_state.stream_mode = ctrl->val;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_g_jpegcomp
- *
- *  V4L2 get the JPEG compression parameters
- *
- *****************************************************************************/
-
-static int cpia2_g_jpegcomp(struct file *file, void *fh, struct v4l2_jpegcompression *parms)
-{
-	struct camera_data *cam = video_drvdata(file);
-
-	memset(parms, 0, sizeof(*parms));
-
-	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) {
-		parms->jpeg_markers |= V4L2_JPEG_MARKER_DHT;
-	}
-
-	parms->APPn = cam->APPn;
-	parms->APP_len = cam->APP_len;
-	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) {
-		memcpy(parms->COM_data, cam->COM_data, cam->COM_len);
-		parms->jpeg_markers |= JPEG_MARKER_COM;
-	}
-
-	DBG("G_JPEGCOMP APP_len:%d COM_len:%d\n",
-	    parms->APP_len, parms->COM_len);
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_s_jpegcomp
- *
- *  V4L2 set the JPEG compression parameters
- *  NOTE: quality and some jpeg_markers are ignored.
- *
- *****************************************************************************/
-
-static int cpia2_s_jpegcomp(struct file *file, void *fh, struct v4l2_jpegcompression *parms)
-{
-	struct camera_data *cam = video_drvdata(file);
-
-	DBG("S_JPEGCOMP APP_len:%d COM_len:%d\n",
-	    parms->APP_len, parms->COM_len);
-
-	cam->params.compression.inhibit_htables =
-		!(parms->jpeg_markers & V4L2_JPEG_MARKER_DHT);
-	parms->jpeg_markers &= V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI |
-			       V4L2_JPEG_MARKER_DHT;
-
-	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;
-			memcpy(cam->APP_data, parms->APP_data, parms->APP_len);
-		} else {
-			LOG("Bad APPn Params n=%d len=%d\n",
-			    parms->APPn, parms->APP_len);
-			return -EINVAL;
-		}
-	} else {
-		cam->APP_len = 0;
-	}
-
-	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 {
-			LOG("Bad COM_len=%d\n", parms->COM_len);
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_reqbufs
- *
- *  V4L2 Initiate memory mapping.
- *  NOTE: The user's request is ignored. For now the buffers are fixed.
- *
- *****************************************************************************/
-
-static int cpia2_reqbufs(struct file *file, void *fh, struct v4l2_requestbuffers *req)
-{
-	struct camera_data *cam = video_drvdata(file);
-
-	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);
-	req->count = cam->num_frames;
-	memset(&req->reserved, 0, sizeof(req->reserved));
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_querybuf
- *
- *  V4L2 Query memory buffer status.
- *
- *****************************************************************************/
-
-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)
-		return -EINVAL;
-
-	buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer;
-	buf->length = cam->frame_size;
-
-	buf->memory = V4L2_MEMORY_MMAP;
-
-	if(cam->mmapped)
-		buf->flags = V4L2_BUF_FLAG_MAPPED;
-	else
-		buf->flags = 0;
-
-	switch (cam->buffers[buf->index].status) {
-	case FRAME_EMPTY:
-	case FRAME_ERROR:
-	case FRAME_READING:
-		buf->bytesused = 0;
-		buf->flags = V4L2_BUF_FLAG_QUEUED;
-		break;
-	case FRAME_READY:
-		buf->bytesused = cam->buffers[buf->index].length;
-		buf->timestamp = cam->buffers[buf->index].timestamp;
-		buf->sequence = cam->buffers[buf->index].seq;
-		buf->flags = V4L2_BUF_FLAG_DONE;
-		break;
-	}
-
-	DBG("QUERYBUF index:%d offset:%d flags:%d seq:%d bytesused:%d\n",
-	     buf->index, buf->m.offset, buf->flags, buf->sequence,
-	     buf->bytesused);
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  ioctl_qbuf
- *
- *  V4L2 User is freeing buffer
- *
- *****************************************************************************/
-
-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 ||
-	   buf->index > cam->num_frames)
-		return -EINVAL;
-
-	DBG("QBUF #%d\n", buf->index);
-
-	if(cam->buffers[buf->index].status == FRAME_READY)
-		cam->buffers[buf->index].status = FRAME_EMPTY;
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  find_earliest_filled_buffer
- *
- *  Helper for ioctl_dqbuf. Find the next ready buffer.
- *
- *****************************************************************************/
-
-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) {
-				found = i;
-			} else {
-				/* find which buffer is earlier */
-				struct timeval *tv1, *tv2;
-				tv1 = &cam->buffers[i].timestamp;
-				tv2 = &cam->buffers[found].timestamp;
-				if(tv1->tv_sec < tv2->tv_sec ||
-				   (tv1->tv_sec == tv2->tv_sec &&
-				    tv1->tv_usec < tv2->tv_usec))
-					found = i;
-			}
-		}
-	}
-	return found;
-}
-
-/******************************************************************************
- *
- *  ioctl_dqbuf
- *
- *  V4L2 User is asking for a filled buffer.
- *
- *****************************************************************************/
-
-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)
-		return -EINVAL;
-
-	frame = find_earliest_filled_buffer(cam);
-
-	if(frame < 0 && file->f_flags&O_NONBLOCK)
-		return -EAGAIN;
-
-	if(frame < 0) {
-		/* Wait for a frame to become available */
-		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);
-		mutex_lock(&cam->v4l2_lock);
-		if (signal_pending(current))
-			return -ERESTARTSYS;
-		if (!video_is_registered(&cam->vdev))
-			return -ENOTTY;
-		frame = cb->num;
-	}
-
-
-	buf->index = frame;
-	buf->bytesused = cam->buffers[buf->index].length;
-	buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE;
-	buf->field = V4L2_FIELD_NONE;
-	buf->timestamp = cam->buffers[buf->index].timestamp;
-	buf->sequence = cam->buffers[buf->index].seq;
-	buf->m.offset = cam->buffers[buf->index].data - cam->frame_buffer;
-	buf->length = cam->frame_size;
-	buf->reserved2 = 0;
-	buf->reserved = 0;
-	memset(&buf->timecode, 0, sizeof(buf->timecode));
-
-	DBG("DQBUF #%d status:%d seq:%d length:%d\n", buf->index,
-	    cam->buffers[buf->index].status, buf->sequence, buf->bytesused);
-
-	return 0;
-}
-
-static int cpia2_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
-{
-	struct camera_data *cam = video_drvdata(file);
-	int ret = -EINVAL;
-
-	DBG("VIDIOC_STREAMON, streaming=%d\n", cam->streaming);
-	if (!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-
-	if (!cam->streaming) {
-		ret = cpia2_usb_stream_start(cam,
-				cam->params.camera_state.stream_mode);
-		if (!ret)
-			v4l2_ctrl_grab(cam->usb_alt, true);
-	}
-	return ret;
-}
-
-static int cpia2_streamoff(struct file *file, void *fh, enum v4l2_buf_type type)
-{
-	struct camera_data *cam = video_drvdata(file);
-	int ret = -EINVAL;
-
-	DBG("VIDIOC_STREAMOFF, streaming=%d\n", cam->streaming);
-	if (!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-
-	if (cam->streaming) {
-		ret = cpia2_usb_stream_stop(cam);
-		if (!ret)
-			v4l2_ctrl_grab(cam->usb_alt, false);
-	}
-	return ret;
-}
-
-/******************************************************************************
- *
- *  cpia2_mmap
- *
- *****************************************************************************/
-static int cpia2_mmap(struct file *file, struct vm_area_struct *area)
-{
-	struct camera_data *cam = video_drvdata(file);
-	int retval;
-
-	if (mutex_lock_interruptible(&cam->v4l2_lock))
-		return -ERESTARTSYS;
-	retval = cpia2_remap_buffer(cam, area);
-
-	if(!retval)
-		cam->stream_fh = file->private_data;
-	mutex_unlock(&cam->v4l2_lock);
-	return retval;
-}
-
-/******************************************************************************
- *
- *  reset_camera_struct_v4l
- *
- *  Sets all values to the defaults
- *****************************************************************************/
-static void reset_camera_struct_v4l(struct camera_data *cam)
-{
-	cam->width = cam->params.roi.width;
-	cam->height = cam->params.roi.height;
-
-	cam->frame_size = buffer_size;
-	cam->num_frames = num_buffers;
-
-	/* Flicker modes */
-	cam->params.flicker_control.flicker_mode_req = flicker_mode;
-
-	/* stream modes */
-	cam->params.camera_state.stream_mode = alternate;
-
-	cam->pixelformat = V4L2_PIX_FMT_JPEG;
-}
-
-static const struct v4l2_ioctl_ops cpia2_ioctl_ops = {
-	.vidioc_querycap		    = cpia2_querycap,
-	.vidioc_enum_input		    = cpia2_enum_input,
-	.vidioc_g_input			    = cpia2_g_input,
-	.vidioc_s_input			    = cpia2_s_input,
-	.vidioc_enum_fmt_vid_cap	    = cpia2_enum_fmt_vid_cap,
-	.vidioc_g_fmt_vid_cap		    = cpia2_g_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap		    = cpia2_s_fmt_vid_cap,
-	.vidioc_try_fmt_vid_cap		    = cpia2_try_fmt_vid_cap,
-	.vidioc_g_jpegcomp		    = cpia2_g_jpegcomp,
-	.vidioc_s_jpegcomp		    = cpia2_s_jpegcomp,
-	.vidioc_cropcap			    = cpia2_cropcap,
-	.vidioc_reqbufs			    = cpia2_reqbufs,
-	.vidioc_querybuf		    = cpia2_querybuf,
-	.vidioc_qbuf			    = cpia2_qbuf,
-	.vidioc_dqbuf			    = cpia2_dqbuf,
-	.vidioc_streamon		    = cpia2_streamon,
-	.vidioc_streamoff		    = cpia2_streamoff,
-	.vidioc_s_parm			    = cpia2_s_parm,
-	.vidioc_g_parm			    = cpia2_g_parm,
-	.vidioc_enum_framesizes		    = cpia2_enum_framesizes,
-	.vidioc_enum_frameintervals	    = cpia2_enum_frameintervals,
-	.vidioc_subscribe_event		    = v4l2_ctrl_subscribe_event,
-	.vidioc_unsubscribe_event	    = v4l2_event_unsubscribe,
-};
-
-/***
- * The v4l video device structure initialized for this device
- ***/
-static const struct v4l2_file_operations cpia2_fops = {
-	.owner		= THIS_MODULE,
-	.open		= cpia2_open,
-	.release	= cpia2_close,
-	.read		= cpia2_v4l_read,
-	.poll		= cpia2_v4l_poll,
-	.unlocked_ioctl	= video_ioctl2,
-	.mmap		= cpia2_mmap,
-};
-
-static struct video_device cpia2_template = {
-	/* I could not find any place for the old .initialize initializer?? */
-	.name =		"CPiA2 Camera",
-	.fops =		&cpia2_fops,
-	.ioctl_ops =	&cpia2_ioctl_ops,
-	.release =	video_device_release_empty,
-};
-
-void cpia2_camera_release(struct v4l2_device *v4l2_dev)
-{
-	struct camera_data *cam =
-		container_of(v4l2_dev, struct camera_data, v4l2_dev);
-
-	v4l2_ctrl_handler_free(&cam->hdl);
-	v4l2_device_unregister(&cam->v4l2_dev);
-	kfree(cam);
-}
-
-static const struct v4l2_ctrl_ops cpia2_ctrl_ops = {
-	.s_ctrl = cpia2_s_ctrl,
-};
-
-/******************************************************************************
- *
- *  cpia2_register_camera
- *
- *****************************************************************************/
-int cpia2_register_camera(struct camera_data *cam)
-{
-	struct v4l2_ctrl_handler *hdl = &cam->hdl;
-	struct v4l2_ctrl_config cpia2_usb_alt = {
-		.ops = &cpia2_ctrl_ops,
-		.id = CPIA2_CID_USB_ALT,
-		.name = "USB Alternate",
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.min = USBIF_ISO_1,
-		.max = USBIF_ISO_6,
-		.step = 1,
-	};
-	int ret;
-
-	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_ctrl_new_std(hdl, &cpia2_ctrl_ops,
-			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_ctrl_new_std(hdl, &cpia2_ctrl_ops,
-			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_ctrl_new_std(hdl, &cpia2_ctrl_ops,
-			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);
-	/* 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);
-	/* 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);
-		cam->bottom_light = v4l2_ctrl_new_std(hdl, &cpia2_ctrl_ops,
-				V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0);
-		v4l2_ctrl_cluster(2, &cam->top_light);
-	}
-
-	if (hdl->error) {
-		ret = hdl->error;
-		v4l2_ctrl_handler_free(hdl);
-		return ret;
-	}
-
-	cam->vdev = cpia2_template;
-	video_set_drvdata(&cam->vdev, cam);
-	cam->vdev.lock = &cam->v4l2_lock;
-	cam->vdev.ctrl_handler = hdl;
-	cam->vdev.v4l2_dev = &cam->v4l2_dev;
-	set_bit(V4L2_FL_USE_FH_PRIO, &cam->vdev.flags);
-
-	reset_camera_struct_v4l(cam);
-
-	/* register v4l device */
-	if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, video_nr) < 0) {
-		ERR("video_register_device failed\n");
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
-/******************************************************************************
- *
- *  cpia2_unregister_camera
- *
- *****************************************************************************/
-void cpia2_unregister_camera(struct camera_data *cam)
-{
-	video_unregister_device(&cam->vdev);
-}
-
-/******************************************************************************
- *
- *  check_parameters
- *
- *  Make sure that all user-supplied parameters are sensible
- *****************************************************************************/
-static void __init check_parameters(void)
-{
-	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) {
-		/* arbitrary upper limiit */
-		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);
-	}
-
-	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) {
-		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) {
-		alternate = DEFAULT_ALT;
-		LOG("alternate specified is invalid, using %d\n", alternate);
-	}
-
-	if (flicker_mode != 0 && flicker_mode != FLICKER_50 && flicker_mode != FLICKER_60) {
-		flicker_mode = 0;
-		LOG("Flicker mode specified is invalid, using %d\n",
-		    flicker_mode);
-	}
-
-	DBG("Using %d buffers, each %d bytes, alternate=%d\n",
-	    num_buffers, buffer_size, alternate);
-}
-
-/************   Module Stuff ***************/
-
-
-/******************************************************************************
- *
- * cpia2_init/module_init
- *
- *****************************************************************************/
-static int __init cpia2_init(void)
-{
-	LOG("%s v%s\n",
-	    ABOUT, CPIA_VERSION);
-	check_parameters();
-	cpia2_usb_init();
-	return 0;
-}
-
-
-/******************************************************************************
- *
- * cpia2_exit/module_exit
- *
- *****************************************************************************/
-static void __exit cpia2_exit(void)
-{
-	cpia2_usb_cleanup();
-	schedule_timeout(2 * HZ);
-}
-
-module_init(cpia2_init);
-module_exit(cpia2_exit);