diff options
| author | Jernej Skrabec <jernej.skrabec@gmail.com> | 2022-06-20 20:55:16 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-07-17 13:06:59 +0300 |
| commit | c6618d2789044855cc3e155ae4ee544b3a8a4ef2 (patch) | |
| tree | 37f5a8b83c7a18f0331716705ef859bd231495f1 /drivers/staging | |
| parent | 0ede8c820ae0bdf7036127934521c6ea8376fc5f (diff) | |
| download | linux-c6618d2789044855cc3e155ae4ee544b3a8a4ef2.tar.xz | |
media: cedrus: Add helper for determining number of elements
Now that controls can be dynamic arrays, we need to know how many
elements are in such array. Add a helper for that.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/media/sunxi/cedrus/cedrus.c | 11 | ||||
| -rw-r--r-- | drivers/staging/media/sunxi/cedrus/cedrus.h | 1 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/media/sunxi/cedrus/cedrus.c index 99c87319d2b4..b855e608885c 100644 --- a/drivers/staging/media/sunxi/cedrus/cedrus.c +++ b/drivers/staging/media/sunxi/cedrus/cedrus.c @@ -232,6 +232,17 @@ void *cedrus_find_control_data(struct cedrus_ctx *ctx, u32 id) return NULL; } +u32 cedrus_get_num_of_controls(struct cedrus_ctx *ctx, u32 id) +{ + unsigned int i; + + for (i = 0; ctx->ctrls[i]; i++) + if (ctx->ctrls[i]->id == id) + return ctx->ctrls[i]->elems; + + return 0; +} + static int cedrus_init_ctrls(struct cedrus_dev *dev, struct cedrus_ctx *ctx) { struct v4l2_ctrl_handler *hdl = &ctx->hdl; diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h b/drivers/staging/media/sunxi/cedrus/cedrus.h index d2b697a9ded2..15a1bdbf6a1f 100644 --- a/drivers/staging/media/sunxi/cedrus/cedrus.h +++ b/drivers/staging/media/sunxi/cedrus/cedrus.h @@ -261,5 +261,6 @@ vb2_to_cedrus_buffer(const struct vb2_buffer *p) } void *cedrus_find_control_data(struct cedrus_ctx *ctx, u32 id); +u32 cedrus_get_num_of_controls(struct cedrus_ctx *ctx, u32 id); #endif |