From patchwork Mon Oct 5 15:15:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 67720 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1kPS7R-003j8E-Eo; Mon, 05 Oct 2020 15:09:41 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726851AbgJEPQG (ORCPT + 1 other); Mon, 5 Oct 2020 11:16:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:44216 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726573AbgJEPQG (ORCPT ); Mon, 5 Oct 2020 11:16:06 -0400 Received: from kozik-lap.mshome.net (unknown [194.230.155.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6C85C2078A; Mon, 5 Oct 2020 15:16:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601910965; bh=h+mjNR7Ih9SPH2szRZ48s6Wbw1Tsxse8uOiktaYvNf0=; h=From:To:Cc:Subject:Date:From; b=1Qu/wPSrap3vLZR0kC6AuI6UwX0VM4DuLJhiXzpnWpmZsyVvCLDnyZ55S/ZHkNEyR 2nsU+8fJhSsWBgrais7UMkNZSYriMRzKJ1DxRvgG24HxKirBVMRNcr/cR5wdTvC9ma yR+0wiAQ2VUDgugJC7R7IiEtIRVWHtYUohAjaqfk= From: Krzysztof Kozlowski To: Sakari Ailus , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski Subject: [PATCH 1/2] media: i2c: imx258: add HDR control Date: Mon, 5 Oct 2020 17:15:58 +0200 Message-Id: <20201005151559.12003-1-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -3.1 (---) X-LSpam-Report: No, score=-3.1 required=5.0 tests=BAYES_00=-1.9,DKIMWL_WL_HIGH=0.001,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,DKIM_VALID_EF=-0.1,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no The IMX258 supports High Dynamic Range with 5 levels of low/high exposure ratio. Add a V4L2 control for HDR (WIDE_DYNAMIC_RANGE). Signed-off-by: Krzysztof Kozlowski --- drivers/media/i2c/imx258.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index 7bedbfe5c4d6..aedf8e7c6165 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -61,6 +61,15 @@ #define IMX258_DGTL_GAIN_DEFAULT 1024 #define IMX258_DGTL_GAIN_STEP 1 +/* HDR control */ +#define IMX258_REG_HDR 0x0220 +#define IMX258_HDR_ON BIT(0) +#define IMX258_REG_HDR_RATIO 0x0222 +#define IMX258_HDR_RATIO_MIN 0 +#define IMX258_HDR_RATIO_MAX 5 +#define IMX258_HDR_RATIO_STEP 1 +#define IMX258_HDR_RATIO_DEFAULT 0x0 + /* Test Pattern Control */ #define IMX258_REG_TEST_PATTERN 0x0600 @@ -777,6 +786,22 @@ static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) !ctrl->val ? REG_CONFIG_MIRROR_FLIP : REG_CONFIG_FLIP_TEST_PATTERN); break; + case V4L2_CID_WIDE_DYNAMIC_RANGE: + if (!ctrl->val) { + ret = imx258_write_reg(imx258, IMX258_REG_HDR, + IMX258_REG_VALUE_08BIT, + IMX258_HDR_RATIO_MIN); + } else { + ret = imx258_write_reg(imx258, IMX258_REG_HDR, + IMX258_REG_VALUE_08BIT, + IMX258_HDR_ON); + if (ret) + break; + ret = imx258_write_reg(imx258, IMX258_REG_HDR_RATIO, + IMX258_REG_VALUE_08BIT, + BIT(IMX258_HDR_RATIO_MAX)); + } + break; default: dev_info(&client->dev, "ctrl(id:0x%x,val:0x%x) is not handled\n", @@ -1193,6 +1218,9 @@ static int imx258_init_controls(struct imx258 *imx258) IMX258_DGTL_GAIN_STEP, IMX258_DGTL_GAIN_DEFAULT); + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_WIDE_DYNAMIC_RANGE, + 0, 1, 1, IMX258_HDR_RATIO_DEFAULT); + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(imx258_test_pattern_menu) - 1,