From patchwork Mon Apr 15 13:03:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 789099 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B1567127E33 for ; Mon, 15 Apr 2024 13:03:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713186225; cv=none; b=fu6d810Mg0Ti1IvBe+74G3z85CfLQaXv1X4ERRJGZMFRcLipN0krTSmRVhJtyNbeVeXB6YYTE1vcL5a75q7XXDdWcOTvu0HD5Zl3dIZG6Ucv+bbqjrBOuJ+urhzd/nHb844mmKdHSf51VWdcIe6WL0KLxVc5kRZBcbGA65GuEeM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713186225; c=relaxed/simple; bh=QXIAhsGejHIqLMH9Q1qTWO8Ds3pfu49miUtQzMNppGo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YDJfwFXrh0xsGmyZZmNZ6dRRfp1Jqx5UcnJNXP/cDTFfXYQ5AbNg4HaIBNqywhvAsvB6+wQHTTruNy+yb5Uqp8Ao497ltjrFZGF9ehtxgmb0JuNmQo368fX9aNGmDPgUTwCGex5bexmwL7dUwYrGAfOCC9In7/hSCGidFKsk/FM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=R4TMV1GT; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="R4TMV1GT" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1713186219; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6pNuHo4YKN6k38sMgA99YpIUkHjY6Q7qGnTJlbNlN1M=; b=R4TMV1GT4ajTYhUZqeThoCFLGCtCM1puzuFrZM9jhQCTNtY2JFToZo/TYgb+SeimgKyMcX DQD6abT5djahlS+jFXP9cqF33o9U3wsWJBRe6i0GEOoCbgzUtdK+3XXNWTgVdKeLbNGvPe d8I7bvuEE3YTv5VASS1mqMbdQ37P7M0= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-548-khkPYU6nMzmVzx5gwsaPOw-1; Mon, 15 Apr 2024 09:03:35 -0400 X-MC-Unique: khkPYU6nMzmVzx5gwsaPOw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 2B45D3C0ED49; Mon, 15 Apr 2024 13:03:35 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.195.17]) by smtp.corp.redhat.com (Postfix) with ESMTP id 309D31121306; Mon, 15 Apr 2024 13:03:34 +0000 (UTC) From: Hans de Goede To: Sakari Ailus , Rui Miguel Silva Cc: Hans de Goede , Mauro Carvalho Chehab , Kate Hsuan , Kieran Bingham , linux-media@vger.kernel.org Subject: [PATCH v2 3/5] media: ov2680: Add vblank control Date: Mon, 15 Apr 2024 15:03:16 +0200 Message-ID: <20240415130318.234222-4-hdegoede@redhat.com> In-Reply-To: <20240415130318.234222-1-hdegoede@redhat.com> References: <20240415130318.234222-1-hdegoede@redhat.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.3 Add vblank control to allow changing the framerate / higher exposure values. Reviewed-by: Kieran Bingham Signed-off-by: Hans de Goede --- Changes in v2: - Add error checking to __v4l2_ctrl_modify_range() and __v4l2_ctrl_s_ctrl() calls --- drivers/media/i2c/ov2680.c | 56 +++++++++++++++++++++++++++++++++----- 1 file changed, 49 insertions(+), 7 deletions(-) diff --git a/drivers/media/i2c/ov2680.c b/drivers/media/i2c/ov2680.c index 6c3d7862b2aa..1a246c87d289 100644 --- a/drivers/media/i2c/ov2680.c +++ b/drivers/media/i2c/ov2680.c @@ -75,6 +75,8 @@ #define OV2680_ACTIVE_START_TOP 8 #define OV2680_MIN_CROP_WIDTH 2 #define OV2680_MIN_CROP_HEIGHT 2 +#define OV2680_MIN_VBLANK 4 +#define OV2680_MAX_VBLANK 0xffff /* Fixed pre-div of 1/2 */ #define OV2680_PLL_PREDIV0 2 @@ -84,7 +86,7 @@ /* 66MHz pixel clock: 66MHz / 1704 * 1294 = 30fps */ #define OV2680_PIXELS_PER_LINE 1704 -#define OV2680_LINES_PER_FRAME 1294 +#define OV2680_LINES_PER_FRAME_30FPS 1294 /* Max exposure time is VTS - 8 */ #define OV2680_INTEGRATION_TIME_MARGIN 8 @@ -127,6 +129,7 @@ struct ov2680_ctrls { struct v4l2_ctrl *test_pattern; struct v4l2_ctrl *link_freq; struct v4l2_ctrl *pixel_rate; + struct v4l2_ctrl *vblank; }; struct ov2680_mode { @@ -394,8 +397,7 @@ static int ov2680_set_mode(struct ov2680_dev *sensor) sensor->mode.v_output_size, &ret); cci_write(sensor->regmap, OV2680_REG_TIMING_HTS, OV2680_PIXELS_PER_LINE, &ret); - cci_write(sensor->regmap, OV2680_REG_TIMING_VTS, - OV2680_LINES_PER_FRAME, &ret); + /* VTS gets set by the vblank ctrl */ cci_write(sensor->regmap, OV2680_REG_ISP_X_WIN, 0, &ret); cci_write(sensor->regmap, OV2680_REG_ISP_Y_WIN, 0, &ret); cci_write(sensor->regmap, OV2680_REG_X_INC, inc, &ret); @@ -469,6 +471,15 @@ static int ov2680_exposure_set(struct ov2680_dev *sensor, u32 exp) NULL); } +static int ov2680_exposure_update_range(struct ov2680_dev *sensor) +{ + int exp_max = sensor->mode.fmt.height + sensor->ctrls.vblank->val - + OV2680_INTEGRATION_TIME_MARGIN; + + return __v4l2_ctrl_modify_range(sensor->ctrls.exposure, 0, exp_max, + 1, exp_max); +} + static int ov2680_stream_enable(struct ov2680_dev *sensor) { int ret; @@ -635,7 +646,7 @@ static int ov2680_set_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *try_fmt; const struct v4l2_rect *crop; unsigned int width, height; - int ret = 0; + int def, max, ret = 0; crop = __ov2680_get_pad_crop(sensor, sd_state, format->pad, format->which); @@ -664,6 +675,21 @@ static int ov2680_set_fmt(struct v4l2_subdev *sd, sensor->mode.fmt = format->format; ov2680_calc_mode(sensor); + /* vblank range is height dependent adjust and reset to default */ + max = OV2680_MAX_VBLANK - height; + def = OV2680_LINES_PER_FRAME_30FPS - height; + ret = __v4l2_ctrl_modify_range(sensor->ctrls.vblank, OV2680_MIN_VBLANK, + max, 1, def); + if (ret) + goto unlock; + + ret = __v4l2_ctrl_s_ctrl(sensor->ctrls.vblank, def); + if (ret) + goto unlock; + + /* exposure range depends on vts which may have changed */ + ret = ov2680_exposure_update_range(sensor); + unlock: mutex_unlock(&sensor->lock); @@ -833,6 +859,13 @@ static int ov2680_s_ctrl(struct v4l2_ctrl *ctrl) struct ov2680_dev *sensor = to_ov2680_dev(sd); int ret; + /* Update exposure range on vblank changes */ + if (ctrl->id == V4L2_CID_VBLANK) { + ret = ov2680_exposure_update_range(sensor); + if (ret) + return ret; + } + /* Only apply changes to the controls if the device is powered up */ if (!pm_runtime_get_if_in_use(sensor->sd.dev)) { ov2680_set_bayer_order(sensor, &sensor->mode.fmt); @@ -855,6 +888,10 @@ static int ov2680_s_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_TEST_PATTERN: ret = ov2680_test_pattern_set(sensor, ctrl->val); break; + case V4L2_CID_VBLANK: + ret = cci_write(sensor->regmap, OV2680_REG_TIMING_VTS, + sensor->mode.fmt.height + ctrl->val, NULL); + break; default: ret = -EINVAL; break; @@ -913,8 +950,7 @@ static int ov2680_v4l2_register(struct ov2680_dev *sensor) const struct v4l2_ctrl_ops *ops = &ov2680_ctrl_ops; struct ov2680_ctrls *ctrls = &sensor->ctrls; struct v4l2_ctrl_handler *hdl = &ctrls->handler; - int exp_max = OV2680_LINES_PER_FRAME - OV2680_INTEGRATION_TIME_MARGIN; - int ret = 0; + int def, max, ret = 0; v4l2_i2c_subdev_init(&sensor->sd, client, &ov2680_subdev_ops); sensor->sd.internal_ops = &ov2680_internal_ops; @@ -939,8 +975,9 @@ static int ov2680_v4l2_register(struct ov2680_dev *sensor) ARRAY_SIZE(test_pattern_menu) - 1, 0, 0, test_pattern_menu); + max = OV2680_LINES_PER_FRAME_30FPS - OV2680_INTEGRATION_TIME_MARGIN; ctrls->exposure = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_EXPOSURE, - 0, exp_max, 1, exp_max); + 0, max, 1, max); ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_ANALOGUE_GAIN, 0, 1023, 1, 250); @@ -951,6 +988,11 @@ static int ov2680_v4l2_register(struct ov2680_dev *sensor) 0, sensor->pixel_rate, 1, sensor->pixel_rate); + max = OV2680_MAX_VBLANK - OV2680_DEFAULT_HEIGHT; + def = OV2680_LINES_PER_FRAME_30FPS - OV2680_DEFAULT_HEIGHT; + ctrls->vblank = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_VBLANK, + OV2680_MIN_VBLANK, max, 1, def); + if (hdl->error) { ret = hdl->error; goto cleanup_entity;