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Commit c820cc45 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

V4L/DVB (4066): Vivi.c were ported to the newer videodev2 format. 



Several common handling codes were removed. Maybe even more
stuff may be handled at common infrastructure.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 401998fa

drivers/media/video/vivi.c

+283 −339
Original line number Diff line number Diff line
@@ -48,24 +48,15 @@ 


#include "font.h"



MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board");

MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol");

MODULE_LICENSE("Dual BSD/GPL");



#define VIVI_MAJOR_VERSION 0

#define VIVI_MINOR_VERSION 4

#define VIVI_RELEASE 0

#define VIVI_VERSION KERNEL_VERSION(VIVI_MAJOR_VERSION, VIVI_MINOR_VERSION, VIVI_RELEASE)



/* Declare static vars that will be used as parameters */

static unsigned int vid_limit = 16;	/* Video memory limit, in Mb */

static struct video_device vivi;	/* Video device */

static int video_nr = -1;		/* /dev/videoN, -1 for autodetect */

module_param(video_nr, int, 0);



static int debug = 0;

module_param(debug, int, 0);



static unsigned int vid_limit = 16;

module_param(vid_limit,int,0644);

MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");



/* supported controls */

static struct v4l2_queryctrl vivi_qctrl[] = {
@@ -121,7 +112,7 @@ static int qctl_regs[ARRAY_SIZE(vivi_qctrl)]; 


#define dprintk(level,fmt, arg...)					\

	do {								\

		if (debug >= (level))			     \

		if (vivi.debug >= (level))				\

			printk(KERN_DEBUG "vivi: " fmt , ## arg);	\

	} while (0)
@@ -180,7 +171,7 @@ struct vivi_dev { 


	/* various device info */

	unsigned int               resources;

	struct video_device        video_dev;

	struct video_device        vfd;



	struct vivi_dmaqueue       vidq;
@@ -830,49 +821,6 @@ static struct videobuf_queue_ops vivi_video_qops = { 
	IOCTL handling

   ------------------------------------------------------------------*/



static int vivi_try_fmt(struct vivi_dev *dev, struct vivi_fh *fh,

			struct v4l2_format *f)

{

	struct vivi_fmt *fmt;

	enum v4l2_field field;

	unsigned int maxw, maxh;



	if (format.fourcc != f->fmt.pix.pixelformat) {

		dprintk(1,"Fourcc format invalid.\n");

		return -EINVAL;

	}

	fmt=&format;



	field = f->fmt.pix.field;



	if (field == V4L2_FIELD_ANY) {

//		field=V4L2_FIELD_INTERLACED;

		field=V4L2_FIELD_SEQ_TB;

	} else if (V4L2_FIELD_INTERLACED != field) {

		dprintk(1,"Field type invalid.\n");

		return -EINVAL;

	}



	maxw  = norm_maxw();

	maxh  = norm_maxh();



	f->fmt.pix.field = field;

	if (f->fmt.pix.height < 32)

		f->fmt.pix.height = 32;

	if (f->fmt.pix.height > maxh)

		f->fmt.pix.height = maxh;

	if (f->fmt.pix.width < 48)

		f->fmt.pix.width = 48;

	if (f->fmt.pix.width > maxw)

		f->fmt.pix.width = maxw;

	f->fmt.pix.width &= ~0x03;

	f->fmt.pix.bytesperline =

		(f->fmt.pix.width * fmt->depth) >> 3;

	f->fmt.pix.sizeimage =

		f->fmt.pix.height * f->fmt.pix.bytesperline;



	return 0;

}



static int res_get(struct vivi_dev *dev, struct vivi_fh *fh)

{
@@ -903,80 +851,37 @@ static void res_free(struct vivi_dev *dev, struct vivi_fh *fh) 
	up(&dev->lock);

}



static int vivi_do_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg)

{

	struct vivi_fh  *fh     = file->private_data;

	struct vivi_dev *dev    = fh->dev;

	int ret=0;



	if (debug) {

		if (_IOC_DIR(cmd) & _IOC_WRITE)

			v4l_printk_ioctl_arg("vivi(w)",cmd, arg);

		else if (!_IOC_DIR(cmd) & _IOC_READ) {

			v4l_print_ioctl("vivi", cmd);

		}

	}



	switch(cmd) {

	/* --- capabilities ------------------------------------------ */

	case VIDIOC_QUERYCAP:

/* ------------------------------------------------------------------

	IOCTL vidioc handling

   ------------------------------------------------------------------*/

static int vidioc_querycap (struct file *file, void  *priv,

					struct v4l2_capability *cap)

{

		struct v4l2_capability *cap = (struct v4l2_capability*)arg;



		memset(cap, 0, sizeof(*cap));



	strcpy(cap->driver, "vivi");

	strcpy(cap->card, "vivi");

	cap->version = VIVI_VERSION;

		cap->capabilities =

					V4L2_CAP_VIDEO_CAPTURE |

	cap->capabilities =	V4L2_CAP_VIDEO_CAPTURE |

				V4L2_CAP_STREAMING     |

				V4L2_CAP_READWRITE;

		break;

	}

	/* --- capture ioctls ---------------------------------------- */

	case VIDIOC_ENUM_FMT:

	{

		struct v4l2_fmtdesc *f = arg;

		enum v4l2_buf_type type;

		unsigned int index;



		index = f->index;

		type  = f->type;



		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			ret=-EINVAL;

			break;

	return 0;

}



		switch (type) {

		case V4L2_BUF_TYPE_VIDEO_CAPTURE:

			if (index > 0){

				ret=-EINVAL;

				break;

			}

			memset(f,0,sizeof(*f));

static int vidioc_enum_fmt_cap (struct file *file, void  *priv,

					struct v4l2_fmtdesc *f)

{

	if (f->index > 0)

		return -EINVAL;



			f->index = index;

			f->type  = type;

	strlcpy(f->description,format.name,sizeof(f->description));

	f->pixelformat = format.fourcc;

			break;

		default:

			ret=-EINVAL;

		}

		break;

	return 0;

}

	case VIDIOC_G_FMT:

	{

		struct v4l2_format *f = (struct v4l2_format *)arg;



		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			ret=-EINVAL;

			break;

		}

static int vidioc_g_fmt_cap (struct file *file, void *priv,

					struct v4l2_format *f)

{

	struct vivi_fh  *fh=priv;



		memset(&f->fmt.pix,0,sizeof(f->fmt.pix));

	f->fmt.pix.width        = fh->width;

	f->fmt.pix.height       = fh->height;

	f->fmt.pix.field        = fh->vb_vidq.field;
@@ -985,21 +890,63 @@ static int vivi_do_ioctl(struct inode *inode, struct file *file, unsigned int cm 
		(f->fmt.pix.width * fh->fmt->depth) >> 3;

	f->fmt.pix.sizeimage =

		f->fmt.pix.height * f->fmt.pix.bytesperline;

		break;



	return (0);

}

	case VIDIOC_S_FMT:



static int vidioc_try_fmt_cap (struct file *file, void *priv,

			struct v4l2_format *f)

{

		struct v4l2_format *f = arg;

	struct vivi_fmt *fmt;

	enum v4l2_field field;

	unsigned int maxw, maxh;



		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			dprintk(1,"Only capture supported.\n");

			ret=-EINVAL;

			break;

	if (format.fourcc != f->fmt.pix.pixelformat) {

		dprintk(1,"Fourcc format (0x%08x) invalid. Driver accepts "

			"only 0x%08x\n",f->fmt.pix.pixelformat,format.fourcc);

		return -EINVAL;

	}

	fmt=&format;



		ret = vivi_try_fmt(dev,fh,f);

	field = f->fmt.pix.field;



	if (field == V4L2_FIELD_ANY) {

//		field=V4L2_FIELD_INTERLACED;

		field=V4L2_FIELD_SEQ_TB;

	} else if (V4L2_FIELD_INTERLACED != field) {

		dprintk(1,"Field type invalid.\n");

		return -EINVAL;

	}



	maxw  = norm_maxw();

	maxh  = norm_maxh();



	f->fmt.pix.field = field;

	if (f->fmt.pix.height < 32)

		f->fmt.pix.height = 32;

	if (f->fmt.pix.height > maxh)

		f->fmt.pix.height = maxh;

	if (f->fmt.pix.width < 48)

		f->fmt.pix.width = 48;

	if (f->fmt.pix.width > maxw)

		f->fmt.pix.width = maxw;

	f->fmt.pix.width &= ~0x03;

	f->fmt.pix.bytesperline =

		(f->fmt.pix.width * fmt->depth) >> 3;

	f->fmt.pix.sizeimage =

		f->fmt.pix.height * f->fmt.pix.bytesperline;



	return 0;

}



/*FIXME: This seems to be generic enough to be at videodev2 */

static int vidioc_s_fmt_cap (struct file *file, void *priv,

					struct v4l2_format *f)

{

	struct vivi_fh  *fh=priv;

	int ret = vidioc_try_fmt_cap(file,fh,f);

	if (ret < 0)

			break;

		return (ret);



	fh->fmt           = &format;

	fh->width         = f->fmt.pix.width;
@@ -1007,64 +954,52 @@ static int vivi_do_ioctl(struct inode *inode, struct file *file, unsigned int cm 
	fh->vb_vidq.field = f->fmt.pix.field;

	fh->type          = f->type;



		break;

	return (0);

}

	case VIDIOC_TRY_FMT:



static int vidioc_reqbufs (struct file *file, void *priv, struct v4l2_requestbuffers *p)

{

		struct v4l2_format *f = arg;

		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			ret=-EINVAL;

			break;

		}

	struct vivi_fh  *fh=priv;



		ret=vivi_try_fmt(dev,fh,f);

		break;

	}

	case VIDIOC_REQBUFS:

		if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			ret=-EINVAL;

			break;

	return (videobuf_reqbufs(&fh->vb_vidq, p));

}

		ret=videobuf_reqbufs(&fh->vb_vidq, arg);

		break;

	case VIDIOC_QUERYBUF:

		if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			ret=-EINVAL;

			break;



static int vidioc_querybuf (struct file *file, void *priv, struct v4l2_buffer *p)

{

	struct vivi_fh  *fh=priv;



	return (videobuf_querybuf(&fh->vb_vidq, p));

}

		ret=videobuf_querybuf(&fh->vb_vidq, arg);

		break;

	case VIDIOC_QBUF:

		if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			ret=-EINVAL;

			break;



static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)

{

	struct vivi_fh  *fh=priv;



	return (videobuf_qbuf(&fh->vb_vidq, p));

}

		ret=videobuf_qbuf(&fh->vb_vidq, arg);

		break;

	case VIDIOC_DQBUF:

		if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			ret=-EINVAL;

			break;



static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)

{

	struct vivi_fh  *fh=priv;



	return (videobuf_dqbuf(&fh->vb_vidq, p,

				file->f_flags & O_NONBLOCK));

}

		ret=videobuf_dqbuf(&fh->vb_vidq, arg,

					file->f_flags & O_NONBLOCK);

		break;



#ifdef HAVE_V4L1

	/* --- streaming capture ------------------------------------- */

	case VIDIOCGMBUF:

static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)

{

		struct video_mbuf *mbuf = arg;

	struct vivi_fh  *fh=priv;

	struct videobuf_queue *q=&fh->vb_vidq;

	struct v4l2_requestbuffers req;

		unsigned int i;

	unsigned int i, ret;



		memset(&req,0,sizeof(req));

	req.type   = q->type;

	req.count  = 8;

	req.memory = V4L2_MEMORY_MMAP;

	ret = videobuf_reqbufs(q,&req);

	if (ret < 0)

			break;

		return (ret);

	memset(mbuf,0,sizeof(*mbuf));

	mbuf->frames = req.count;

	mbuf->size   = 0;
@@ -1072,158 +1007,128 @@ static int vivi_do_ioctl(struct inode *inode, struct file *file, unsigned int cm 
		mbuf->offsets[i]  = q->bufs[i]->boff;

		mbuf->size       += q->bufs[i]->bsize;

	}

		break;

	return (0);

}

#endif

	case VIDIOC_STREAMON:



int vidioc_streamon (struct file *file, void *priv, enum v4l2_buf_type i)

{

	struct vivi_fh  *fh=priv;

	struct vivi_dev *dev    = fh->dev;



	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)

		return -EINVAL;

	if (i != fh->type)

		return -EINVAL;



	if (!res_get(dev,fh))

		return -EBUSY;

		ret=videobuf_streamon(&fh->vb_vidq);

		break;

	}

	case VIDIOC_STREAMOFF:

	{

		if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {

			ret=-EINVAL;

			break;

	return (videobuf_streamon(&fh->vb_vidq));

}

		ret = videobuf_streamoff(&fh->vb_vidq);

		if (ret < 0)

			break;

		res_free(dev,fh);

		break;

	}

	/* ---------- tv norms ---------- */

	case VIDIOC_ENUMSTD:



int vidioc_streamoff (struct file *file, void *priv, enum v4l2_buf_type i)

{

		struct v4l2_standard *e = arg;

	struct vivi_fh  *fh=priv;

	struct vivi_dev *dev    = fh->dev;



		if (e->index>0) {

			ret=-EINVAL;

			break;

		}

		ret = v4l2_video_std_construct(e, V4L2_STD_NTSC_M, "NTSC-M");

	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)

		return -EINVAL;

	if (i != fh->type)

		return -EINVAL;



		/* Allows vivi to use different fps from video std */

		e->frameperiod.numerator = WAKE_NUMERATOR;

		e->frameperiod.denominator = WAKE_DENOMINATOR;

	videobuf_streamoff(&fh->vb_vidq);

	res_free(dev,fh);



		break;

	return (0);

}

	case VIDIOC_G_STD:

	{

		v4l2_std_id *id = arg;



		*id = V4L2_STD_NTSC_M;

		break;

	}

	case VIDIOC_S_STD:

static struct v4l2_tvnorm tvnorms[] = {

	{

		break;

		.name      = "NTSC-M",

		.id        = V4L2_STD_NTSC_M,

	}

	/* ------ input switching ---------- */

	case VIDIOC_ENUMINPUT:

	{ /* only one input in this sample driver */

		struct v4l2_input *inp = arg;

};



		if (inp->index != 0) {

			ret=-EINVAL;

			break;

static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id a)

{



	return 0;

}

		memset(inp, 0, sizeof(*inp));



		inp->index = 0;

/* only one input in this sample driver */

static int vidioc_enum_input (struct file *file, void *priv,

				struct v4l2_input *inp)

{

	if (inp->index != 0)

		return -EINVAL;



	inp->type = V4L2_INPUT_TYPE_CAMERA;

	inp->std = V4L2_STD_NTSC_M;

	strcpy(inp->name,"Camera");

		break;



	return (0);

}

	case VIDIOC_G_INPUT:

	{

		unsigned int *i = arg;



static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)

{

	*i = 0;

		break;



	return (0);

}

	case VIDIOC_S_INPUT:

static int vidioc_s_input (struct file *file, void *priv, unsigned int i)

{

		unsigned int *i = arg;

	if (i > 0)

		return -EINVAL;



		if (*i > 0)

			ret=-EINVAL;

		break;

	return (0);

}



	/* --- controls ---------------------------------------------- */

	case VIDIOC_QUERYCTRL:

static int vidioc_queryctrl (struct file *file, void *priv,

				struct v4l2_queryctrl *qc)

{

		struct v4l2_queryctrl *qc = arg;

	int i;



	for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)

		if (qc->id && qc->id == vivi_qctrl[i].id) {

			memcpy(qc, &(vivi_qctrl[i]),

				sizeof(*qc));

				break;

			return (0);

		}



		ret=-EINVAL;

		break;

	return -EINVAL;

}

	case VIDIOC_G_CTRL:



static int vidioc_g_ctrl (struct file *file, void *priv,

				struct v4l2_control *ctrl)

{

		struct v4l2_control *ctrl = arg;

	int i;



	for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)

		if (ctrl->id == vivi_qctrl[i].id) {

			ctrl->value=qctl_regs[i];

				break;

			return (0);

		}



		ret=-EINVAL;

		break;

	return -EINVAL;

}

	case VIDIOC_S_CTRL:

static int vidioc_s_ctrl (struct file *file, void *priv,

				struct v4l2_control *ctrl)

{

		struct v4l2_control *ctrl = arg;

	int i;



	for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)

		if (ctrl->id == vivi_qctrl[i].id) {

			if (ctrl->value <

				vivi_qctrl[i].minimum

				|| ctrl->value >

				vivi_qctrl[i].maximum) {

						ret=-ERANGE;

						break;

					return (-ERANGE);

				}

			qctl_regs[i]=ctrl->value;

				break;

			}

		ret=-EINVAL;

		break;

	}

	default:

		ret=v4l_compat_translate_ioctl(inode,file,cmd,arg,vivi_do_ioctl);

			return (0);

		}



	if (debug) {

		if (ret<0) {

			v4l_print_ioctl("vivi(err)", cmd);

			dprintk(1,"errcode=%d\n",ret);

		} else if (_IOC_DIR(cmd) & _IOC_READ)

			v4l_printk_ioctl_arg("vivi(r)",cmd, arg);

	}



	return ret;

}



static int vivi_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)

{

	return video_usercopy(inode, file, cmd, arg, vivi_do_ioctl);

	return -EINVAL;

}



/* ------------------------------------------------------------------
@@ -1245,7 +1150,7 @@ static int vivi_open(struct inode *inode, struct file *file) 


	list_for_each(list,&vivi_devlist) {

		h = list_entry(list, struct vivi_dev, vivi_devlist);

		if (h->video_dev.minor == minor) {

		if (h->vfd.minor == minor) {

			dev  = h;

			type = V4L2_BUF_TYPE_VIDEO_CAPTURE;

		}
@@ -1254,6 +1159,7 @@ static int vivi_open(struct inode *inode, struct file *file) 
		return -ENODEV;







	/* If more than one user, mutex should be added */

	dev->users++;
@@ -1269,6 +1175,7 @@ static int vivi_open(struct inode *inode, struct file *file) 


	file->private_data = fh;

	fh->dev      = dev;



	fh->type     = V4L2_BUF_TYPE_VIDEO_CAPTURE;

	fh->fmt      = &format;

	fh->width    = 640;
@@ -1390,20 +1297,44 @@ static struct file_operations vivi_fops = { 
	.release        = vivi_release,

	.read           = vivi_read,

	.poll		= vivi_poll,

	.ioctl          = vivi_ioctl,

	.ioctl          = video_ioctl2, /* V4L2 ioctl handler */

	.mmap		= vivi_mmap,

	.llseek         = no_llseek,

};



static struct video_device vivi = {

	.name		= "VTM Virtual Video Capture Board",

	.name		= "vivi",

	.type		= VID_TYPE_CAPTURE,

	.hardware	= 0,

	.fops           = &vivi_fops,

	.minor		= -1,

//	.release	= video_device_release,



	.vidioc_querycap      = vidioc_querycap,

	.vidioc_enum_fmt_cap  = vidioc_enum_fmt_cap,

	.vidioc_g_fmt_cap     = vidioc_g_fmt_cap,

	.vidioc_try_fmt_cap   = vidioc_try_fmt_cap,

	.vidioc_s_fmt_cap     = vidioc_s_fmt_cap,

	.vidioc_reqbufs       = vidioc_reqbufs,

	.vidioc_querybuf      = vidioc_querybuf,

	.vidioc_qbuf          = vidioc_qbuf,

	.vidioc_dqbuf         = vidioc_dqbuf,

	.vidioc_s_std         = vidioc_s_std,

	.vidioc_enum_input    = vidioc_enum_input,

	.vidioc_g_input       = vidioc_g_input,

	.vidioc_s_input       = vidioc_s_input,

	.vidioc_queryctrl     = vidioc_queryctrl,

	.vidioc_g_ctrl        = vidioc_g_ctrl,

	.vidioc_s_ctrl        = vidioc_s_ctrl,

	.vidioc_streamon      = vidioc_streamon,

	.vidioc_streamoff     = vidioc_streamoff,

#ifdef HAVE_V4L1

	.vidiocgmbuf          = vidiocgmbuf,

#endif

	.tvnorms              = tvnorms,

	.tvnormsize           = ARRAY_SIZE(tvnorms),

};

/* ------------------------------------------------------------------

/* -----------------------------------------------------------------

	Initialization and module stuff

   ------------------------------------------------------------------*/
@@ -1447,3 +1378,16 @@ static void __exit vivi_exit(void) 


module_init(vivi_init);

module_exit(vivi_exit);



MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board");

MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol");

MODULE_LICENSE("Dual BSD/GPL");



module_param(video_nr, int, 0);



module_param_named(debug,vivi.debug, int, 0644);

MODULE_PARM_DESC(debug,"activates debug info");



module_param(vid_limit,int,0644);

MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");