From c6618d2789044855cc3e155ae4ee544b3a8a4ef2 Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Mon, 20 Jun 2022 18:55:16 +0100 Subject: [PATCH] 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 Reviewed-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/sunxi/cedrus/cedrus.c | 11 +++++++++++ drivers/staging/media/sunxi/cedrus/cedrus.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/media/sunxi/cedrus/cedrus.c index 99c8731..b855e608 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 d2b697a..15a1bdb 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 -- 2.7.4