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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>
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@ -232,6 +232,17 @@ void *cedrus_find_control_data(struct cedrus_ctx *ctx, u32 id)
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return NULL;
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}
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u32 cedrus_get_num_of_controls(struct cedrus_ctx *ctx, u32 id)
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{
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unsigned int i;
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for (i = 0; ctx->ctrls[i]; i++)
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if (ctx->ctrls[i]->id == id)
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return ctx->ctrls[i]->elems;
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return 0;
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}
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static int cedrus_init_ctrls(struct cedrus_dev *dev, struct cedrus_ctx *ctx)
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{
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struct v4l2_ctrl_handler *hdl = &ctx->hdl;
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@ -261,5 +261,6 @@ vb2_to_cedrus_buffer(const struct vb2_buffer *p)
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}
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void *cedrus_find_control_data(struct cedrus_ctx *ctx, u32 id);
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u32 cedrus_get_num_of_controls(struct cedrus_ctx *ctx, u32 id);
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#endif
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