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path: root/drivers/media/pci/ivtv/ivtv-fileops.c
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Diffstat (limited to 'drivers/media/pci/ivtv/ivtv-fileops.c')
-rw-r--r--drivers/media/pci/ivtv/ivtv-fileops.c42
1 files changed, 20 insertions, 22 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-fileops.c b/drivers/media/pci/ivtv/ivtv-fileops.c
index cfa28d035586..ef9ec062c03a 100644
--- a/drivers/media/pci/ivtv/ivtv-fileops.c
+++ b/drivers/media/pci/ivtv/ivtv-fileops.c
@@ -3,7 +3,7 @@
file operation functions
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
- Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
+ Copyright (C) 2005-2007 Hans Verkuil <hverkuil@kernel.org>
*/
@@ -39,16 +39,16 @@ int ivtv_claim_stream(struct ivtv_open_id *id, int type)
if (test_and_set_bit(IVTV_F_S_CLAIMED, &s->s_flags)) {
/* someone already claimed this stream */
- if (s->fh == &id->fh) {
+ if (s->id == id) {
/* yes, this file descriptor did. So that's OK. */
return 0;
}
- if (s->fh == NULL && (type == IVTV_DEC_STREAM_TYPE_VBI ||
+ if (s->id == NULL && (type == IVTV_DEC_STREAM_TYPE_VBI ||
type == IVTV_ENC_STREAM_TYPE_VBI)) {
/* VBI is handled already internally, now also assign
the file descriptor to this stream for external
reading of the stream. */
- s->fh = &id->fh;
+ s->id = id;
IVTV_DEBUG_INFO("Start Read VBI\n");
return 0;
}
@@ -56,7 +56,7 @@ int ivtv_claim_stream(struct ivtv_open_id *id, int type)
IVTV_DEBUG_INFO("Stream %d is busy\n", type);
return -EBUSY;
}
- s->fh = &id->fh;
+ s->id = id;
if (type == IVTV_DEC_STREAM_TYPE_VBI) {
/* Enable reinsertion interrupt */
ivtv_clear_irq_mask(itv, IVTV_IRQ_DEC_VBI_RE_INSERT);
@@ -94,7 +94,7 @@ void ivtv_release_stream(struct ivtv_stream *s)
struct ivtv *itv = s->itv;
struct ivtv_stream *s_vbi;
- s->fh = NULL;
+ s->id = NULL;
if ((s->type == IVTV_DEC_STREAM_TYPE_VBI || s->type == IVTV_ENC_STREAM_TYPE_VBI) &&
test_bit(IVTV_F_S_INTERNAL_USE, &s->s_flags)) {
/* this stream is still in use internally */
@@ -126,7 +126,7 @@ void ivtv_release_stream(struct ivtv_stream *s)
/* was already cleared */
return;
}
- if (s_vbi->fh) {
+ if (s_vbi->id) {
/* VBI stream still claimed by a file descriptor */
return;
}
@@ -359,7 +359,7 @@ static ssize_t ivtv_read(struct ivtv_stream *s, char __user *ubuf, size_t tot_co
size_t tot_written = 0;
int single_frame = 0;
- if (atomic_read(&itv->capturing) == 0 && s->fh == NULL) {
+ if (atomic_read(&itv->capturing) == 0 && s->id == NULL) {
/* shouldn't happen */
IVTV_DEBUG_WARN("Stream %s not initialized before read\n", s->name);
return -EIO;
@@ -502,7 +502,7 @@ int ivtv_start_capture(struct ivtv_open_id *id)
ssize_t ivtv_v4l2_read(struct file * filp, char __user *buf, size_t count, loff_t * pos)
{
- struct ivtv_open_id *id = fh2id(filp->private_data);
+ struct ivtv_open_id *id = file2id(filp);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
ssize_t rc;
@@ -564,7 +564,7 @@ static int ivtv_schedule_dma(struct ivtv_stream *s)
static ssize_t ivtv_write(struct file *filp, const char __user *user_buf, size_t count, loff_t *pos)
{
- struct ivtv_open_id *id = fh2id(filp->private_data);
+ struct ivtv_open_id *id = file2id(filp);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
struct yuv_playback_info *yi = &itv->yuv_info;
@@ -719,7 +719,7 @@ retry:
ssize_t ivtv_v4l2_write(struct file *filp, const char __user *user_buf, size_t count, loff_t *pos)
{
- struct ivtv_open_id *id = fh2id(filp->private_data);
+ struct ivtv_open_id *id = file2id(filp);
struct ivtv *itv = id->itv;
ssize_t res;
@@ -732,7 +732,7 @@ ssize_t ivtv_v4l2_write(struct file *filp, const char __user *user_buf, size_t c
__poll_t ivtv_v4l2_dec_poll(struct file *filp, poll_table *wait)
{
- struct ivtv_open_id *id = fh2id(filp->private_data);
+ struct ivtv_open_id *id = file2id(filp);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
__poll_t res = 0;
@@ -767,7 +767,7 @@ __poll_t ivtv_v4l2_dec_poll(struct file *filp, poll_table *wait)
__poll_t ivtv_v4l2_enc_poll(struct file *filp, poll_table *wait)
{
__poll_t req_events = poll_requested_events(wait);
- struct ivtv_open_id *id = fh2id(filp->private_data);
+ struct ivtv_open_id *id = file2id(filp);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
int eof = test_bit(IVTV_F_S_STREAMOFF, &s->s_flags);
@@ -831,7 +831,7 @@ void ivtv_stop_capture(struct ivtv_open_id *id, int gop_end)
id->type == IVTV_ENC_STREAM_TYPE_VBI) &&
test_bit(IVTV_F_S_INTERNAL_USE, &s->s_flags)) {
/* Also used internally, don't stop capturing */
- s->fh = NULL;
+ s->id = NULL;
}
else {
ivtv_stop_v4l2_encode_stream(s, gop_end);
@@ -877,8 +877,8 @@ static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts)
int ivtv_v4l2_close(struct file *filp)
{
- struct v4l2_fh *fh = filp->private_data;
- struct ivtv_open_id *id = fh2id(fh);
+ struct v4l2_fh *fh = file_to_v4l2_fh(filp);
+ struct ivtv_open_id *id = file2id(filp);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
@@ -911,11 +911,11 @@ int ivtv_v4l2_close(struct file *filp)
ivtv_unmute(itv);
}
- v4l2_fh_del(fh);
+ v4l2_fh_del(fh, filp);
v4l2_fh_exit(fh);
/* Easy case first: this stream was never claimed by us */
- if (s->fh != &id->fh)
+ if (s->id != id)
goto close_done;
/* 'Unclaim' this stream */
@@ -998,9 +998,7 @@ static int ivtv_open(struct file *filp)
v4l2_fh_init(&item->fh, &s->vdev);
item->itv = itv;
item->type = s->type;
-
- filp->private_data = &item->fh;
- v4l2_fh_add(&item->fh);
+ v4l2_fh_add(&item->fh, filp);
if (item->type == IVTV_ENC_STREAM_TYPE_RAD &&
v4l2_fh_is_singular_file(filp)) {
@@ -1008,7 +1006,7 @@ static int ivtv_open(struct file *filp)
if (atomic_read(&itv->capturing) > 0) {
/* switching to radio while capture is
in progress is not polite */
- v4l2_fh_del(&item->fh);
+ v4l2_fh_del(&item->fh, filp);
v4l2_fh_exit(&item->fh);
kfree(item);
return -EBUSY;
generated by cgit v1.2.3 (git 2.39.0) at 2025-10-04 10:26:58 +0300