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[213.161.3.76]) by smtp.gmail.com with ESMTPSA id 184-20020a1c02c1000000b0039db31f6372sm19620752wmc.2.2022.06.20.10.55.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Jun 2022 10:55:36 -0700 (PDT) From: Jernej Skrabec 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 Subject: [PATCH 6/7] media: cedrus: Add helper for determining number of elements Date: Mon, 20 Jun 2022 19:55:16 +0200 Message-Id: <20220620175517.648767-7-jernej.skrabec@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220620175517.648767-1-jernej.skrabec@gmail.com> References: <20220620175517.648767-1-jernej.skrabec@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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 --- 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