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From: Jernej Skrabec <jernej.skrabec@gmail.com>
To: mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org,
	samuel@sholland.org
Cc: mchehab@kernel.org, gregkh@linuxfoundation.org,
	hverkuil-cisco@xs4all.nl, linux-media@vger.kernel.org,
	linux-staging@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	Jernej Skrabec <jernej.skrabec@gmail.com>
Subject: [PATCH 6/7] media: cedrus: Add helper for determining number of elements
Date: Mon, 20 Jun 2022 19:55:16 +0200	[thread overview]
Message-ID: <20220620175517.648767-7-jernej.skrabec@gmail.com> (raw)
In-Reply-To: <20220620175517.648767-1-jernej.skrabec@gmail.com>

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>
---
 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 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
-- 
2.36.1


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  parent reply	other threads:[~2022-06-20 17:59 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-20 17:55 [PATCH 0/7] media: cedrus: h265: Implement tiles support Jernej Skrabec
2022-06-20 17:55 ` [PATCH 1/7] media: cedrus: h265: Fix flag name Jernej Skrabec
2022-06-20 17:55 ` [PATCH 2/7] media: cedrus: h265: Fix logic for not low delay flag Jernej Skrabec
2022-06-20 17:55 ` [PATCH 3/7] media: cedrus: Improve error messages for controls Jernej Skrabec
2022-07-11 21:35   ` Ezequiel Garcia
2022-06-20 17:55 ` [PATCH 4/7] media: cedrus: Add error handling for failed setup Jernej Skrabec
2022-07-11 21:21   ` Ezequiel Garcia
2022-06-20 17:55 ` [PATCH 5/7] media: cedrus: h265: Add a couple of error checks Jernej Skrabec
2022-07-11 21:31   ` Ezequiel Garcia
2022-07-12 21:25     ` Jernej Škrabec
2022-07-13 16:45       ` Ezequiel Garcia
2022-06-20 17:55 ` Jernej Skrabec [this message]
2022-07-11 21:35   ` [PATCH 6/7] media: cedrus: Add helper for determining number of elements Ezequiel Garcia
2022-06-20 17:55 ` [PATCH 7/7] media: cedrus: h265: Implement support for tiles Jernej Skrabec
2022-07-11 21:34   ` Ezequiel Garcia
2022-07-12 21:28 ` [PATCH 0/7] media: cedrus: h265: Implement tiles support Jernej Škrabec

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