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[media] media: davinci: vpif_display: use v4l2_fh_open and vb2_fop_release
this patch adds support to use v4l2_fh_open() and vb2_fop_release, which allows to drop driver specific struct vpif_fh, as this is handeled by core. This patch also drops vpif_g/s_priority as this handeled by core. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Lad, Prabhakar
Mauro Carvalho Chehab
parent
4be2153cf7
commit
fcc22af217
@ -645,85 +645,6 @@ static void vpif_config_addr(struct channel_obj *ch, int muxmode)
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}
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}
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/*
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* vpif_open: It creates object of file handle structure and stores it in
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* private_data member of filepointer
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*/
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static int vpif_open(struct file *filep)
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{
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struct video_device *vdev = video_devdata(filep);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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struct vpif_fh *fh;
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/* Allocate memory for the file handle object */
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fh = kzalloc(sizeof(struct vpif_fh), GFP_KERNEL);
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if (fh == NULL) {
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vpif_err("unable to allocate memory for file handle object\n");
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return -ENOMEM;
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}
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if (mutex_lock_interruptible(&common->lock)) {
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kfree(fh);
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return -ERESTARTSYS;
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}
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/* store pointer to fh in private_data member of filep */
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filep->private_data = fh;
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fh->channel = ch;
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fh->initialized = 0;
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if (!ch->initialized) {
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fh->initialized = 1;
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ch->initialized = 1;
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memset(&ch->vpifparams, 0, sizeof(ch->vpifparams));
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}
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/* Increment channel usrs counter */
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atomic_inc(&ch->usrs);
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/* Set io_allowed[VPIF_VIDEO_INDEX] member to false */
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fh->io_allowed[VPIF_VIDEO_INDEX] = 0;
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/* Initialize priority of this instance to default priority */
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fh->prio = V4L2_PRIORITY_UNSET;
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v4l2_prio_open(&ch->prio, &fh->prio);
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mutex_unlock(&common->lock);
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return 0;
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}
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/*
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* vpif_release: This function deletes buffer queue, frees the buffers and
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* the vpif file handle
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*/
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static int vpif_release(struct file *filep)
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{
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struct vpif_fh *fh = filep->private_data;
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struct channel_obj *ch = fh->channel;
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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mutex_lock(&common->lock);
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/* if this instance is doing IO */
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if (fh->io_allowed[VPIF_VIDEO_INDEX]) {
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/* Reset io_usrs member of channel object */
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common->io_usrs = 0;
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common->numbuffers =
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config_params.numbuffers[ch->channel_id];
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}
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/* Decrement channel usrs counter */
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atomic_dec(&ch->usrs);
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/* If this file handle has initialize encoder device, reset it */
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if (fh->initialized)
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ch->initialized = 0;
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/* Close the priority */
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v4l2_prio_close(&ch->prio, fh->prio);
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filep->private_data = NULL;
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fh->initialized = 0;
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mutex_unlock(&common->lock);
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kfree(fh);
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return 0;
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}
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/* functions implementing ioctls */
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/**
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* vpif_querycap() - QUERYCAP handler
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@ -765,8 +686,8 @@ static int vpif_enum_fmt_vid_out(struct file *file, void *priv,
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static int vpif_g_fmt_vid_out(struct file *file, void *priv,
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struct v4l2_format *fmt)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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/* Check the validity of the buffer type */
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@ -782,26 +703,12 @@ static int vpif_g_fmt_vid_out(struct file *file, void *priv,
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static int vpif_s_fmt_vid_out(struct file *file, void *priv,
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struct v4l2_format *fmt)
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{
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struct vpif_fh *fh = priv;
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struct v4l2_pix_format *pixfmt;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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struct v4l2_pix_format *pixfmt;
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int ret = 0;
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if ((VPIF_CHANNEL2_VIDEO == ch->channel_id)
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|| (VPIF_CHANNEL3_VIDEO == ch->channel_id)) {
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if (!fh->initialized) {
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vpif_dbg(1, debug, "Channel Busy\n");
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return -EBUSY;
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}
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/* Check for the priority */
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ret = v4l2_prio_check(&ch->prio, fh->prio);
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if (0 != ret)
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return ret;
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fh->initialized = 1;
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}
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if (common->started) {
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vpif_dbg(1, debug, "Streaming in progress\n");
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return -EBUSY;
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@ -823,8 +730,8 @@ static int vpif_s_fmt_vid_out(struct file *file, void *priv,
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static int vpif_try_fmt_vid_out(struct file *file, void *priv,
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struct v4l2_format *fmt)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
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int ret = 0;
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@ -841,22 +748,12 @@ static int vpif_try_fmt_vid_out(struct file *file, void *priv,
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static int vpif_reqbufs(struct file *file, void *priv,
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struct v4l2_requestbuffers *reqbuf)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common;
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enum v4l2_field field;
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u8 index = 0;
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/* This file handle has not initialized the channel,
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It is not allowed to do settings */
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if ((VPIF_CHANNEL2_VIDEO == ch->channel_id)
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|| (VPIF_CHANNEL3_VIDEO == ch->channel_id)) {
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if (!fh->initialized) {
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vpif_err("Channel Busy\n");
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return -EBUSY;
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}
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}
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if (V4L2_BUF_TYPE_VIDEO_OUTPUT != reqbuf->type)
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return -EINVAL;
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@ -877,8 +774,6 @@ static int vpif_reqbufs(struct file *file, void *priv,
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} else {
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field = V4L2_VBI_INTERLACED;
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}
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/* Set io allowed member of file handle to TRUE */
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fh->io_allowed[index] = 1;
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/* Increment io usrs member of channel object to 1 */
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common->io_usrs = 1;
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/* Store type of memory requested in channel object */
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@ -890,8 +785,8 @@ static int vpif_reqbufs(struct file *file, void *priv,
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static int vpif_querybuf(struct file *file, void *priv,
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struct v4l2_buffer *tbuf)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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if (common->fmt.type != tbuf->type)
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@ -902,15 +797,13 @@ static int vpif_querybuf(struct file *file, void *priv,
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static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
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{
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struct vpif_fh *fh = NULL;
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struct channel_obj *ch = NULL;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = NULL;
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if (!buf || !priv)
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return -EINVAL;
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fh = priv;
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ch = fh->channel;
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if (!ch)
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return -EINVAL;
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@ -918,18 +811,13 @@ static int vpif_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
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if (common->fmt.type != buf->type)
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return -EINVAL;
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if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
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vpif_err("fh->io_allowed\n");
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return -EACCES;
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}
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return vb2_qbuf(&common->buffer_queue, buf);
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}
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static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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int ret = 0;
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@ -975,8 +863,8 @@ static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id)
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static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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*std = ch->video.stdid;
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return 0;
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@ -984,8 +872,8 @@ static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
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static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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return vb2_dqbuf(&common->buffer_queue, p,
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@ -995,8 +883,8 @@ static int vpif_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
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static int vpif_streamon(struct file *file, void *priv,
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enum v4l2_buf_type buftype)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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struct channel_obj *oth_ch = vpif_obj.dev[!ch->channel_id];
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int ret = 0;
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@ -1006,11 +894,6 @@ static int vpif_streamon(struct file *file, void *priv,
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return -EINVAL;
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}
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if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
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vpif_err("fh->io_allowed\n");
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return -EACCES;
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}
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/* If Streaming is already started, return error */
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if (common->started) {
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vpif_err("channel->started\n");
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@ -1043,8 +926,8 @@ static int vpif_streamon(struct file *file, void *priv,
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static int vpif_streamoff(struct file *file, void *priv,
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enum v4l2_buf_type buftype)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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struct vpif_display_config *vpif_config_data =
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vpif_dev->platform_data;
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@ -1054,11 +937,6 @@ static int vpif_streamoff(struct file *file, void *priv,
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return -EINVAL;
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}
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if (!fh->io_allowed[VPIF_VIDEO_INDEX]) {
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vpif_err("fh->io_allowed\n");
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return -EACCES;
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}
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if (!common->started) {
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vpif_err("channel->started\n");
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return -EINVAL;
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@ -1090,9 +968,10 @@ static int vpif_streamoff(struct file *file, void *priv,
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static int vpif_cropcap(struct file *file, void *priv,
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struct v4l2_cropcap *crop)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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if (V4L2_BUF_TYPE_VIDEO_OUTPUT != crop->type)
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return -EINVAL;
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@ -1109,9 +988,9 @@ static int vpif_enum_output(struct file *file, void *fh,
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{
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struct vpif_display_config *config = vpif_dev->platform_data;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct vpif_display_chan_config *chan_cfg;
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struct vpif_fh *vpif_handler = fh;
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struct channel_obj *ch = vpif_handler->channel;
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chan_cfg = &config->chan_config[ch->channel_id];
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if (output->index >= chan_cfg->output_count) {
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@ -1205,9 +1084,9 @@ static int vpif_set_output(struct vpif_display_config *vpif_cfg,
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static int vpif_s_output(struct file *file, void *priv, unsigned int i)
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{
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struct vpif_display_config *config = vpif_dev->platform_data;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct vpif_display_chan_config *chan_cfg;
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
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chan_cfg = &config->chan_config[ch->channel_id];
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@ -1225,32 +1104,14 @@ static int vpif_s_output(struct file *file, void *priv, unsigned int i)
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static int vpif_g_output(struct file *file, void *priv, unsigned int *i)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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*i = ch->output_idx;
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return 0;
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}
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static int vpif_g_priority(struct file *file, void *priv, enum v4l2_priority *p)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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*p = v4l2_prio_max(&ch->prio);
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return 0;
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}
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static int vpif_s_priority(struct file *file, void *priv, enum v4l2_priority p)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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return v4l2_prio_change(&ch->prio, &fh->prio, p);
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}
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/**
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* vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler
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* @file: file ptr
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@ -1261,8 +1122,8 @@ static int
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vpif_enum_dv_timings(struct file *file, void *priv,
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struct v4l2_enum_dv_timings *timings)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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int ret;
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ret = v4l2_subdev_call(ch->sd, video, enum_dv_timings, timings);
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@ -1280,8 +1141,8 @@ vpif_enum_dv_timings(struct file *file, void *priv,
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static int vpif_s_dv_timings(struct file *file, void *priv,
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struct v4l2_dv_timings *timings)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct vpif_params *vpifparams = &ch->vpifparams;
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struct vpif_channel_config_params *std_info = &vpifparams->std_info;
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struct video_obj *vid_ch = &ch->video;
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@ -1369,8 +1230,8 @@ static int vpif_s_dv_timings(struct file *file, void *priv,
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static int vpif_g_dv_timings(struct file *file, void *priv,
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struct v4l2_dv_timings *timings)
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{
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struct vpif_fh *fh = priv;
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struct channel_obj *ch = fh->channel;
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struct video_device *vdev = video_devdata(file);
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struct channel_obj *ch = video_get_drvdata(vdev);
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struct video_obj *vid_ch = &ch->video;
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*timings = vid_ch->dv_timings;
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@ -1396,8 +1257,6 @@ static int vpif_log_status(struct file *filep, void *priv)
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/* vpif display ioctl operations */
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static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
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.vidioc_querycap = vpif_querycap,
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.vidioc_g_priority = vpif_g_priority,
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.vidioc_s_priority = vpif_s_priority,
|
||||
.vidioc_enum_fmt_vid_out = vpif_enum_fmt_vid_out,
|
||||
.vidioc_g_fmt_vid_out = vpif_g_fmt_vid_out,
|
||||
.vidioc_s_fmt_vid_out = vpif_s_fmt_vid_out,
|
||||
@ -1422,8 +1281,8 @@ static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
|
||||
|
||||
static const struct v4l2_file_operations vpif_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = vpif_open,
|
||||
.release = vpif_release,
|
||||
.open = v4l2_fh_open,
|
||||
.release = vb2_fop_release,
|
||||
.unlocked_ioctl = video_ioctl2,
|
||||
.mmap = vb2_fop_mmap,
|
||||
.poll = vb2_fop_poll
|
||||
@ -1556,12 +1415,8 @@ static int vpif_probe_complete(void)
|
||||
|
||||
memset(&ch->vpifparams, 0, sizeof(ch->vpifparams));
|
||||
|
||||
/* Initialize prio member of channel object */
|
||||
v4l2_prio_init(&ch->prio);
|
||||
ch->common[VPIF_VIDEO_INDEX].fmt.type =
|
||||
V4L2_BUF_TYPE_VIDEO_OUTPUT;
|
||||
ch->video_dev->lock = &common->lock;
|
||||
video_set_drvdata(ch->video_dev, ch);
|
||||
|
||||
/* select output 0 */
|
||||
err = vpif_set_output(vpif_obj.config, ch, 0);
|
||||
@ -1601,6 +1456,9 @@ static int vpif_probe_complete(void)
|
||||
|
||||
vdev = ch->video_dev;
|
||||
vdev->queue = q;
|
||||
vdev->lock = &common->lock;
|
||||
set_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags);
|
||||
video_set_drvdata(ch->video_dev, ch);
|
||||
err = video_register_device(vdev, VFL_TYPE_GRABBER,
|
||||
(j ? 3 : 2));
|
||||
if (err < 0)
|
||||
|
||||
@ -113,8 +113,6 @@ struct channel_obj {
|
||||
/* V4l2 specific parameters */
|
||||
struct video_device *video_dev; /* Identifies video device for
|
||||
* this channel */
|
||||
struct v4l2_prio_state prio; /* Used to keep track of state of
|
||||
* the priority */
|
||||
atomic_t usrs; /* number of open instances of
|
||||
* the channel */
|
||||
u32 field_id; /* Indicates id of the field
|
||||
@ -130,19 +128,6 @@ struct channel_obj {
|
||||
struct video_obj video;
|
||||
};
|
||||
|
||||
/* File handle structure */
|
||||
struct vpif_fh {
|
||||
struct channel_obj *channel; /* pointer to channel object for
|
||||
* opened device */
|
||||
u8 io_allowed[VPIF_NUMOBJECTS]; /* Indicates whether this file handle
|
||||
* is doing IO */
|
||||
enum v4l2_priority prio; /* Used to keep track priority of
|
||||
* this instance */
|
||||
u8 initialized; /* Used to keep track of whether this
|
||||
* file handle has initialized
|
||||
* channel or not */
|
||||
};
|
||||
|
||||
/* vpif device structure */
|
||||
struct vpif_device {
|
||||
struct v4l2_device v4l2_dev;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user