From patchwork Thu Sep 27 22:03:45 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anatolij Gustschin X-Patchwork-Id: 1515911 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 15BCADFFAD for ; Thu, 27 Sep 2012 22:04:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755944Ab2I0WD5 (ORCPT ); Thu, 27 Sep 2012 18:03:57 -0400 Received: from mail-out.m-online.net ([212.18.0.9]:60921 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755818Ab2I0WD4 (ORCPT ); Thu, 27 Sep 2012 18:03:56 -0400 Received: from frontend1.mail.m-online.net (unknown [192.168.8.180]) by mail-out.m-online.net (Postfix) with ESMTP id 3XSVQx4jx7z4KK49; Fri, 28 Sep 2012 00:03:53 +0200 (CEST) X-Auth-Info: R9WJHjrMqn4+8xEgz04Ufdd/k3JCg1NwCSi/5WcVrsc= Received: from localhost (p4FC462DF.dip.t-dialin.net [79.196.98.223]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA id 3XSVQx2fDTzbc6W; Fri, 28 Sep 2012 00:03:53 +0200 (CEST) From: Anatolij Gustschin To: linux-media@vger.kernel.org Cc: Guennadi Liakhovetski , Mauro Carvalho Chehab Subject: [PATCH v2 1/3] mt9v022: add v4l2 controls for blanking Date: Fri, 28 Sep 2012 00:03:45 +0200 Message-Id: <1348783425-22934-1-git-send-email-agust@denx.de> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1345799431-29426-2-git-send-email-agust@denx.de> References: <1345799431-29426-2-git-send-email-agust@denx.de> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add controls for horizontal and vertical blanking. Also add an error message for case that the control handler init failed. Since setting the blanking registers is done by controls now, we shouldn't change these registers outside of the control function. Use v4l2_ctrl_s_ctrl() to set them. Signed-off-by: Anatolij Gustschin --- Changes since first version: - drop analog and reg32 setting controls - use more descriptive error message for handler init error - revise commit log - rebase on staging/for_v3.7 branch drivers/media/i2c/soc_camera/mt9v022.c | 49 +++++++++++++++++++++++++++++-- 1 files changed, 45 insertions(+), 4 deletions(-) diff --git a/drivers/media/i2c/soc_camera/mt9v022.c b/drivers/media/i2c/soc_camera/mt9v022.c index 350d0d8..3cb23c6 100644 --- a/drivers/media/i2c/soc_camera/mt9v022.c +++ b/drivers/media/i2c/soc_camera/mt9v022.c @@ -71,6 +71,13 @@ MODULE_PARM_DESC(sensor_type, "Sensor type: \"colour\" or \"monochrome\""); #define MT9V022_COLUMN_SKIP 1 #define MT9V022_ROW_SKIP 4 +#define MT9V022_HORIZONTAL_BLANKING_MIN 43 +#define MT9V022_HORIZONTAL_BLANKING_MAX 1023 +#define MT9V022_HORIZONTAL_BLANKING_DEF 94 +#define MT9V022_VERTICAL_BLANKING_MIN 2 +#define MT9V022_VERTICAL_BLANKING_MAX 3000 +#define MT9V022_VERTICAL_BLANKING_DEF 45 + #define is_mt9v024(id) (id == 0x1324) /* MT9V022 has only one fixed colorspace per pixelcode */ @@ -136,6 +143,8 @@ struct mt9v022 { struct v4l2_ctrl *autogain; struct v4l2_ctrl *gain; }; + struct v4l2_ctrl *hblank; + struct v4l2_ctrl *vblank; struct v4l2_rect rect; /* Sensor window */ const struct mt9v022_datafmt *fmt; const struct mt9v022_datafmt *fmts; @@ -277,11 +286,10 @@ static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) * Default 94, Phytec driver says: * "width + horizontal blank >= 660" */ - ret = reg_write(client, MT9V022_HORIZONTAL_BLANKING, - rect.width > 660 - 43 ? 43 : - 660 - rect.width); + ret = v4l2_ctrl_s_ctrl(mt9v022->hblank, + rect.width > 660 - 43 ? 43 : 660 - rect.width); if (!ret) - ret = reg_write(client, MT9V022_VERTICAL_BLANKING, 45); + ret = v4l2_ctrl_s_ctrl(mt9v022->vblank, 45); if (!ret) ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect.width); if (!ret) @@ -504,6 +512,18 @@ static int mt9v022_g_volatile_ctrl(struct v4l2_ctrl *ctrl) range = exp->maximum - exp->minimum; exp->val = ((data - 1) * range + 239) / 479 + exp->minimum; return 0; + case V4L2_CID_HBLANK: + data = reg_read(client, MT9V022_HORIZONTAL_BLANKING); + if (data < 0) + return -EIO; + ctrl->val = data; + return 0; + case V4L2_CID_VBLANK: + data = reg_read(client, MT9V022_VERTICAL_BLANKING); + if (data < 0) + return -EIO; + ctrl->val = data; + return 0; } return -EINVAL; } @@ -585,6 +605,16 @@ static int mt9v022_s_ctrl(struct v4l2_ctrl *ctrl) return -EIO; } return 0; + case V4L2_CID_HBLANK: + if (reg_write(client, MT9V022_HORIZONTAL_BLANKING, + ctrl->val) < 0) + return -EIO; + return 0; + case V4L2_CID_VBLANK: + if (reg_write(client, MT9V022_VERTICAL_BLANKING, + ctrl->val) < 0) + return -EIO; + return 0; } return -EINVAL; } @@ -852,10 +882,21 @@ static int mt9v022_probe(struct i2c_client *client, mt9v022->exposure = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, V4L2_CID_EXPOSURE, 1, 255, 1, 255); + mt9v022->hblank = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_HBLANK, MT9V022_HORIZONTAL_BLANKING_MIN, + MT9V022_HORIZONTAL_BLANKING_MAX, 1, + MT9V022_HORIZONTAL_BLANKING_DEF); + + mt9v022->vblank = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_VBLANK, MT9V022_VERTICAL_BLANKING_MIN, + MT9V022_VERTICAL_BLANKING_MAX, 1, + MT9V022_VERTICAL_BLANKING_DEF); + mt9v022->subdev.ctrl_handler = &mt9v022->hdl; if (mt9v022->hdl.error) { int err = mt9v022->hdl.error; + dev_err(&client->dev, "control initialisation err %d\n", err); kfree(mt9v022); return err; }