From patchwork Fri Oct 28 16:08:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Stevenson X-Patchwork-Id: 620154 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34862ECAAA1 for ; Fri, 28 Oct 2022 16:15:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229616AbiJ1QPc (ORCPT ); Fri, 28 Oct 2022 12:15:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58976 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230287AbiJ1QOx (ORCPT ); Fri, 28 Oct 2022 12:14:53 -0400 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3AE441DE3F2 for ; Fri, 28 Oct 2022 09:12:55 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id l16-20020a05600c4f1000b003c6c0d2a445so4149054wmq.4 for ; Fri, 28 Oct 2022 09:12:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raspberrypi.com; s=google; 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=7PQieUrDD2lIc9ALkRj84U8GRwSZ71VOFhAis5UCITI=; b=N3I8VHwEtz39IIV0134f1AMrP2yHLI6f9sYldNBuvXL7ewATsTd4K+UmtT9wlB2jNa X61vX6tMb3NG71uMlmwQVZuvsmJC526oLVdEg7LtYhmPkvZpQCUdTADwYOokaiwlUnpa SM/iclnK/rYJs//4cH6z9XSUpYxLLGs/o+2bbZMOP8MOcq/+TCIfuJnnq+vkfTtLbFk3 Cnn1F9k8e5QHicomw+vr9hY24sDsIno/fY9GiaqM9BydETN96yNMIEBP5ymfhUNPMMDV 5aXzZpKLQcEKA0FyJp41CAEBzK6wVlTPFYTU8oZwO8tMvArgcDj1PAE5Rz7RbFRuwwFE 5CLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=7PQieUrDD2lIc9ALkRj84U8GRwSZ71VOFhAis5UCITI=; b=4oYH/71sCfJuboxKb1SBpa9zUdv3jNTKKBuvXBd8/O38HsaIyE0K3QBRQxg/UlLlwM K5QUGI9HI4m6AHy2j2N0Spv0xTdGj3SdDMpToFPMey43JTXy3zT37zwacDnUwkGxWKGF BlrGcQCVlzQLuujBUmbvzFsbD+dL5bzybsoEMMC5kQPxT2nr6GXR/ts4lA4Z8OmfJdD0 SennS/4BTi6gTHKPwoJ8f/Y5NBl6V0KhB6xu6V6ZBN9R3z8bb+HRfYmAO7QCR1+q7G2s +BGWpL74aKsKBgkPfxrxB6DubI1lW4eWV9YYJEIocZHLnE9NiLtTaNyj1lDEJJmPAot7 SxNQ== X-Gm-Message-State: ACrzQf12EjK0LvTGTyEXhlrC8FueejNjiHD/S9KrkI3gkBggs2bRyHrj efU1gb3czExK/sWIbgOx/cYrIg== X-Google-Smtp-Source: AMsMyM7i5aQjs9/MkRiG+jEVxRHA9sgiCNhj1ZU4a5OsyLEoTwg5waaFjE8aV9xdqBwxJj43w5MYvg== X-Received: by 2002:a1c:f71a:0:b0:3cf:61fd:21f0 with SMTP id v26-20020a1cf71a000000b003cf61fd21f0mr935708wmh.40.1666973573843; Fri, 28 Oct 2022 09:12:53 -0700 (PDT) Received: from dave-Ubuntu2204.pitowers.org ([93.93.133.154]) by smtp.googlemail.com with ESMTPSA id bh17-20020a05600c3d1100b003cf47fdead5sm4731928wmb.30.2022.10.28.09.12.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Oct 2022 09:12:53 -0700 (PDT) From: Dave Stevenson To: paul.j.murphy@intel.com, daniele.alessandrelli@intel.com, linux-media@vger.kernel.org, sakari.ailus@iki.fi, jacopo@jmondi.org Cc: Dave Stevenson Subject: [PATCH v2 11/16] media: i2c: ov9282: Add HFLIP and VFLIP support Date: Fri, 28 Oct 2022 17:08:57 +0100 Message-Id: <20221028160902.2696973-12-dave.stevenson@raspberrypi.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221028160902.2696973-1-dave.stevenson@raspberrypi.com> References: <20221028160902.2696973-1-dave.stevenson@raspberrypi.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Adds support for V4L2_CID_HFLIP and V4L2_CID_VFLIP to allow flipping the image. The driver previously enabled H & V flips in the register table, therefore the controls default to the same settings to avoid changing the behaviour. Signed-off-by: Dave Stevenson Reviewed-by: Jacopo Mondi --- drivers/media/i2c/ov9282.c | 52 +++++++++++++++++++++++++++++++++++++- 1 file changed, 51 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov9282.c b/drivers/media/i2c/ov9282.c index e964461ff1d3..cfb6e72d8931 100644 --- a/drivers/media/i2c/ov9282.c +++ b/drivers/media/i2c/ov9282.c @@ -45,6 +45,10 @@ /* Group hold register */ #define OV9282_REG_HOLD 0x3308 +#define OV9282_REG_TIMING_FORMAT_1 0x3820 +#define OV9282_REG_TIMING_FORMAT_2 0x3821 +#define OV9282_FLIP_BIT BIT(2) + #define OV9282_REG_MIPI_CTRL00 0x4800 #define OV9282_GATED_CLOCK BIT(5) @@ -438,6 +442,40 @@ static int ov9282_update_exp_gain(struct ov9282 *ov9282, u32 exposure, u32 gain) return ret; } +static int ov9282_set_ctrl_hflip(struct ov9282 *ov9282, int value) +{ + u32 current_val; + int ret = ov9282_read_reg(ov9282, OV9282_REG_TIMING_FORMAT_2, 1, + ¤t_val); + if (ret) + return ret; + + if (value) + current_val |= OV9282_FLIP_BIT; + else + current_val &= ~OV9282_FLIP_BIT; + + return ov9282_write_reg(ov9282, OV9282_REG_TIMING_FORMAT_2, 1, + current_val); +} + +static int ov9282_set_ctrl_vflip(struct ov9282 *ov9282, int value) +{ + u32 current_val; + int ret = ov9282_read_reg(ov9282, OV9282_REG_TIMING_FORMAT_1, 1, + ¤t_val); + if (ret) + return ret; + + if (value) + current_val |= OV9282_FLIP_BIT; + else + current_val &= ~OV9282_FLIP_BIT; + + return ov9282_write_reg(ov9282, OV9282_REG_TIMING_FORMAT_1, 1, + current_val); +} + /** * ov9282_set_ctrl() - Set subdevice control * @ctrl: pointer to v4l2_ctrl structure @@ -494,6 +532,12 @@ static int ov9282_set_ctrl(struct v4l2_ctrl *ctrl) lpfr = ov9282->vblank + ov9282->cur_mode->height; ret = ov9282_write_reg(ov9282, OV9282_REG_LPFR, 2, lpfr); break; + case V4L2_CID_HFLIP: + ret = ov9282_set_ctrl_hflip(ov9282, ctrl->val); + break; + case V4L2_CID_VFLIP: + ret = ov9282_set_ctrl_vflip(ov9282, ctrl->val); + break; default: dev_err(ov9282->dev, "Invalid control %d", ctrl->id); ret = -EINVAL; @@ -963,7 +1007,7 @@ static int ov9282_init_controls(struct ov9282 *ov9282) u32 lpfr; int ret; - ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10); if (ret) return ret; @@ -997,6 +1041,12 @@ static int ov9282_init_controls(struct ov9282 *ov9282) mode->vblank_max, 1, mode->vblank); + v4l2_ctrl_new_std(ctrl_hdlr, &ov9282_ctrl_ops, V4L2_CID_VFLIP, + 0, 1, 1, 1); + + v4l2_ctrl_new_std(ctrl_hdlr, &ov9282_ctrl_ops, V4L2_CID_HFLIP, + 0, 1, 1, 1); + /* Read only controls */ v4l2_ctrl_new_std(ctrl_hdlr, &ov9282_ctrl_ops, V4L2_CID_PIXEL_RATE, OV9282_PIXEL_RATE, OV9282_PIXEL_RATE, 1,