From patchwork Mon Dec 11 17:50:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mikhail Rudenko X-Patchwork-Id: 752858 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nXddlOjK" Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D41A4F4; Mon, 11 Dec 2023 09:51:02 -0800 (PST) Received: by mail-lj1-x229.google.com with SMTP id 38308e7fff4ca-2c9bd3ec4f6so59262231fa.2; Mon, 11 Dec 2023 09:51:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702317060; x=1702921860; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ZV+qykvCHEWTicA8pud0kxh1xP8XT+s6VE1pgxnwgAs=; b=nXddlOjKA7x/J0WEj/achhmSAow85xddAX76If+PlbriwksNZ194VYPuAJgnIPY00u H0HCZX0YCZlB9VsezCuazu/Ru6fS8z887AcTy48Tr7fZxVEirHLp0kthBgH4SAfczUMf LpeY/3GyULA/FC1C26QoiDLE6J78P8KElouljtsV4NhzaT7A+jcE+/ohsBP/ydm0T2V6 3y3LbfhY17p6fxL5hKZrdDWbVDPKUxsBaKIaXmKGhzCjq3NDubt2oDxSZ1Fd/Gs/Fovz eu61bRQhVOmef/pPklBhI5GAPHhI7nVovhFlYzn0QoNuqgkj9ObnBFCQxfkNs0uWkp7D 1DOQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702317060; x=1702921860; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ZV+qykvCHEWTicA8pud0kxh1xP8XT+s6VE1pgxnwgAs=; b=URr/RQAcwL3t+ClsjbKcGBY8EM0hBvQgRBh8WSZ1rIb0HAXpGRSacsFFoH0Pks/RIq HktgDl3gcK5WBtQkQb4xjGQuESbjbc7F5RLovkOx7bkMb9XHFLcCkh0IR0/etRjU9Q1G vRwoXJQar14Hb5E77CRrTrXyfZDWMc4d8z0mh1zz0Z35GLNClsCMzKI9uiUwQX3mwnue 3m/R4TPKhFXMNK3Od+P4w87jlgtckwCaCgKY58W+7aBLVHZOaP5XEuiWKty3rJlPI1Jc Hh/fUosu08FLWXCeR1zD+jFUZKOafPNlQJrAFDhgqeCIJATSN7TcuqrRH38OHrWbGI5x BpSg== X-Gm-Message-State: AOJu0YwLFfqEPVqkMMkFCSO8k694ItczbQL/XCFcGcachrSNBkdteG1S FIWXqqXH9WI58ll4OkVXR6lm5V2L8jwDSwIV X-Google-Smtp-Source: AGHT+IEccW+UpLdSJWpoAvmT80r9rc8lBNJIOQ/CbsEYPYa9E0E5gq2P8EHnKFR5xIY7HoxeUXzViQ== X-Received: by 2002:a2e:a178:0:b0:2c9:fa32:4261 with SMTP id u24-20020a2ea178000000b002c9fa324261mr1222745ljl.60.1702317059731; Mon, 11 Dec 2023 09:50:59 -0800 (PST) Received: from localhost ([83.149.246.185]) by smtp.gmail.com with ESMTPSA id s14-20020a05651c200e00b002c9f3e0a075sm1296088ljo.55.2023.12.11.09.50.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Dec 2023 09:50:59 -0800 (PST) From: Mikhail Rudenko To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Sakari Ailus , Laurent Pinchart , Jacopo Mondi , Tommaso Merciai , Christophe JAILLET , Dave Stevenson , Mauro Carvalho Chehab , Mikhail Rudenko Subject: [PATCH 13/19] media: i2c: ov4689: Implement manual color balance controls Date: Mon, 11 Dec 2023 20:50:16 +0300 Message-ID: <20231211175023.1680247-14-mike.rudenko@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231211175023.1680247-1-mike.rudenko@gmail.com> References: <20231211175023.1680247-1-mike.rudenko@gmail.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The OV4689 sensor has separate red and blue gain settings (up to 4x). Implement appropriate controls in the driver. Default gain values are not modified. Signed-off-by: Mikhail Rudenko --- drivers/media/i2c/ov4689.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov4689.c b/drivers/media/i2c/ov4689.c index ed0ce1b9e55b..18e1fd564ec0 100644 --- a/drivers/media/i2c/ov4689.c +++ b/drivers/media/i2c/ov4689.c @@ -41,6 +41,13 @@ #define OV4689_DIG_GAIN_STEP 1 #define OV4689_DIG_GAIN_DEFAULT 0x800 +#define OV4689_REG_WB_GAIN_RED CCI_REG16(0x500c) +#define OV4689_REG_WB_GAIN_BLUE CCI_REG16(0x5010) +#define OV4689_WB_GAIN_MIN 1 +#define OV4689_WB_GAIN_MAX 0xfff +#define OV4689_WB_GAIN_STEP 1 +#define OV4689_WB_GAIN_DEFAULT 0x400 + #define OV4689_REG_TEST_PATTERN CCI_REG8(0x5040) #define OV4689_TEST_PATTERN_ENABLE 0x80 #define OV4689_TEST_PATTERN_DISABLE 0x0 @@ -630,6 +637,12 @@ static int ov4689_set_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_DIGITAL_GAIN: cci_write(regmap, OV4689_REG_DIG_GAIN, val, &ret); break; + case V4L2_CID_RED_BALANCE: + cci_write(regmap, OV4689_REG_WB_GAIN_RED, val, &ret); + break; + case V4L2_CID_BLUE_BALANCE: + cci_write(regmap, OV4689_REG_WB_GAIN_BLUE, val, &ret); + break; default: dev_warn(dev, "%s Unhandled id:0x%x, val:0x%x\n", __func__, ctrl->id, val); @@ -658,7 +671,7 @@ static int ov4689_initialize_controls(struct ov4689 *ov4689) handler = &ov4689->ctrl_handler; mode = ov4689->cur_mode; - ret = v4l2_ctrl_handler_init(handler, 14); + ret = v4l2_ctrl_handler_init(handler, 16); if (ret) return ret; @@ -705,6 +718,14 @@ static int ov4689_initialize_controls(struct ov4689 *ov4689) OV4689_DIG_GAIN_MIN, OV4689_DIG_GAIN_MAX, OV4689_DIG_GAIN_STEP, OV4689_DIG_GAIN_DEFAULT); + v4l2_ctrl_new_std(handler, &ov4689_ctrl_ops, V4L2_CID_RED_BALANCE, + OV4689_WB_GAIN_MIN, OV4689_WB_GAIN_MAX, + OV4689_WB_GAIN_STEP, OV4689_WB_GAIN_DEFAULT); + + v4l2_ctrl_new_std(handler, &ov4689_ctrl_ops, V4L2_CID_BLUE_BALANCE, + OV4689_WB_GAIN_MIN, OV4689_WB_GAIN_MAX, + OV4689_WB_GAIN_STEP, OV4689_WB_GAIN_DEFAULT); + if (handler->error) { ret = handler->error; dev_err(ov4689->dev, "Failed to init controls(%d)\n", ret);