From patchwork Sat Nov 7 19:36:25 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?TsODwqltZXRoIE3Dg8KhcnRvbg==?= X-Patchwork-Id: 58335 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nA7JafAV002925 for ; Sat, 7 Nov 2009 19:36:41 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750928AbZKGTgb (ORCPT ); Sat, 7 Nov 2009 14:36:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751073AbZKGTgb (ORCPT ); Sat, 7 Nov 2009 14:36:31 -0500 Received: from mail01a.mail.t-online.hu ([84.2.40.6]:51133 "EHLO mail01a.mail.t-online.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750887AbZKGTga (ORCPT ); Sat, 7 Nov 2009 14:36:30 -0500 Received: from [192.168.1.64] (dsl5402C46E.pool.t-online.hu [84.2.196.110]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail01a.mail.t-online.hu (Postfix) with ESMTPSA id 6AFF4797B4F; Sat, 7 Nov 2009 20:36:08 +0100 (CET) Message-ID: <4AF5CC39.2000302@freemail.hu> Date: Sat, 07 Nov 2009 20:36:25 +0100 From: =?ISO-8859-2?Q?N=E9meth_M=E1rton?= User-Agent: Mozilla/5.0 (X11; U; Linux i686; hu-HU; rv:1.8.1.21) Gecko/20090402 SeaMonkey/1.1.16 MIME-Version: 1.0 To: Jean-Francois Moine , V4L Mailing List Subject: [PATCH] gspca pac7302: add white balance control X-DCC-mail.t-online.hu-Metrics: mail01a.mail.t-online.hu 32721; Body=2 Fuz1=2 Fuz2=2 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org diff -upr a/linux/drivers/media/video/gspca/pac7302.c b/linux/drivers/media/video/gspca/pac7302.c --- a/linux/drivers/media/video/gspca/pac7302.c 2009-11-07 13:29:00.000000000 +0100 +++ b/linux/drivers/media/video/gspca/pac7302.c 2009-11-07 21:25:15.000000000 +0100 @@ -57,6 +57,7 @@ 0 | 0x0f..0x20 | setcolors() 0 | 0xa2..0xab | setbrightcont() 0 | 0xc5 | setredbalance() + 0 | 0xc6 | setwhitebalance() 0 | 0xc7 | setbluebalance() 0 | 0xdc | setbrightcont(), setcolors() 3 | 0x02 | setexposure() @@ -80,6 +81,7 @@ struct sd { unsigned char brightness; unsigned char contrast; unsigned char colors; + unsigned char white_balance; unsigned char red_balance; unsigned char blue_balance; unsigned char gain; @@ -101,6 +103,8 @@ static int sd_setcontrast(struct gspca_d static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val); static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val); static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val); +static int sd_setwhitebalance(struct gspca_dev *gspca_dev, __s32 val); +static int sd_getwhitebalance(struct gspca_dev *gspca_dev, __s32 *val); static int sd_setredbalance(struct gspca_dev *gspca_dev, __s32 val); static int sd_getredbalance(struct gspca_dev *gspca_dev, __s32 *val); static int sd_setbluebalance(struct gspca_dev *gspca_dev, __s32 val); @@ -167,6 +171,20 @@ static struct ctrl sd_ctrls[] = { }, { { + .id = V4L2_CID_WHITE_BALANCE_TEMPERATURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "White Balance", + .minimum = 0, + .maximum = 255, + .step = 1, +#define WHITEBALANCE_DEF 4 + .default_value = WHITEBALANCE_DEF, + }, + .set = sd_setwhitebalance, + .get = sd_getwhitebalance, + }, + { + { .id = V4L2_CID_RED_BALANCE, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Red", @@ -546,6 +564,7 @@ static int sd_config(struct gspca_dev *g sd->brightness = BRIGHTNESS_DEF; sd->contrast = CONTRAST_DEF; sd->colors = COLOR_DEF; + sd->white_balance = WHITEBALANCE_DEF; sd->red_balance = REDBALANCE_DEF; sd->blue_balance = BLUEBALANCE_DEF; sd->gain = GAIN_DEF; @@ -616,6 +635,21 @@ static int setcolors(struct gspca_dev *g return ret; } +static int setwhitebalance(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int ret; + + ret = reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ + if (0 <= ret) + ret = reg_w(gspca_dev, 0xc6, sd->white_balance); + + if (0 <= ret) + ret = reg_w(gspca_dev, 0xdc, 0x01); + PDEBUG(D_CONF|D_STREAM, "white_balance: %i", sd->white_balance); + return ret; +} + static int setredbalance(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; @@ -727,6 +761,8 @@ static int sd_start(struct gspca_dev *gs if (0 <= ret) ret = setcolors(gspca_dev); if (0 <= ret) + ret = setwhitebalance(gspca_dev); + if (0 <= ret) ret = setredbalance(gspca_dev); if (0 <= ret) ret = setbluebalance(gspca_dev); @@ -962,6 +998,27 @@ static int sd_getcolors(struct gspca_dev return 0; } +static int sd_setwhitebalance(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + int ret = 0; + + sd->white_balance = val; + if (gspca_dev->streaming) + ret = setwhitebalance(gspca_dev); + if (0 <= ret) + ret = 0; + return ret; +} + +static int sd_getwhitebalance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + *val = sd->white_balance; + return 0; +} + static int sd_setredbalance(struct gspca_dev *gspca_dev, __s32 val) { struct sd *sd = (struct sd *) gspca_dev;