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authorKamil Debski <k.debski@samsung.com>2015-02-23 15:26:16 +0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-04-10 15:44:38 +0300
commit06e7a9b638467fddf8f62ca9f07adc7754319461 (patch)
tree97d1e05d23d9b181ff5ec032ee501bef3756f466 /drivers/media
parentbe8e58d93fba531b12ef2fce4fb33c9c5fb5b69f (diff)
downloadlinux-06e7a9b638467fddf8f62ca9f07adc7754319461.tar.xz
[media] vb2: split the io_flags member of vb2_queue into a bit field
This patch splits the io_flags member of vb2_queue into a bit field. Instead of an enum with flags separate bit fields were introduced. Signed-off-by: Kamil Debski <k.debski@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/v4l2-core/videobuf2-core.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 167c1d93bd4c..8bc2a6e8623d 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -2760,7 +2760,8 @@ struct vb2_fileio_data {
unsigned int initial_index;
unsigned int q_count;
unsigned int dq_count;
- unsigned int flags;
+ unsigned read_once:1;
+ unsigned write_immediately:1;
};
/**
@@ -2798,14 +2799,16 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
*/
count = 1;
- dprintk(3, "setting up file io: mode %s, count %d, flags %08x\n",
- (read) ? "read" : "write", count, q->io_flags);
+ dprintk(3, "setting up file io: mode %s, count %d, read_once %d, write_immediately %d\n",
+ (read) ? "read" : "write", count, q->fileio_read_once,
+ q->fileio_write_immediately);
fileio = kzalloc(sizeof(struct vb2_fileio_data), GFP_KERNEL);
if (fileio == NULL)
return -ENOMEM;
- fileio->flags = q->io_flags;
+ fileio->read_once = q->fileio_read_once;
+ fileio->write_immediately = q->fileio_write_immediately;
/*
* Request buffers and use MMAP type to force driver
@@ -3028,13 +3031,11 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
/*
* Queue next buffer if required.
*/
- if (buf->pos == buf->size ||
- (!read && (fileio->flags & VB2_FILEIO_WRITE_IMMEDIATELY))) {
+ if (buf->pos == buf->size || (!read && fileio->write_immediately)) {
/*
* Check if this is the last buffer to read.
*/
- if (read && (fileio->flags & VB2_FILEIO_READ_ONCE) &&
- fileio->dq_count == 1) {
+ if (read && fileio->read_once && fileio->dq_count == 1) {
dprintk(3, "read limit reached\n");
return __vb2_cleanup_fileio(q);
}