From patchwork Sun Dec 12 17:31:49 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans Verkuil X-Patchwork-Id: 401152 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id oBCHWFCS012524 for ; Sun, 12 Dec 2010 17:32:15 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753651Ab0LLRcL (ORCPT ); Sun, 12 Dec 2010 12:32:11 -0500 Received: from smtp-vbr5.xs4all.nl ([194.109.24.25]:1354 "EHLO smtp-vbr5.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753444Ab0LLRcG (ORCPT ); Sun, 12 Dec 2010 12:32:06 -0500 Received: from localhost.localdomain (159.80-203-19.nextgentel.com [80.203.19.159]) (authenticated bits=0) by smtp-vbr5.xs4all.nl (8.13.8/8.13.8) with ESMTP id oBCHW1MF002236 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sun, 12 Dec 2010 18:32:05 +0100 (CET) (envelope-from hverkuil@xs4all.nl) From: Hans Verkuil To: linux-media@vger.kernel.org Subject: [RFC/PATCH 07/19] saa7110: use control framework Date: Sun, 12 Dec 2010 18:31:49 +0100 Message-Id: X-Mailer: git-send-email 1.7.0.4 In-Reply-To: References: In-Reply-To: References: X-Virus-Scanned: by XS4ALL Virus Scanner Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Sun, 12 Dec 2010 17:32:16 +0000 (UTC) diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c index 7913f93..9966420 100644 --- a/drivers/media/video/saa7110.c +++ b/drivers/media/video/saa7110.c @@ -36,6 +36,7 @@ #include #include #include +#include MODULE_DESCRIPTION("Philips SAA7110 video decoder driver"); MODULE_AUTHOR("Pauline Middelink"); @@ -53,15 +54,12 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)"); struct saa7110 { struct v4l2_subdev sd; + struct v4l2_ctrl_handler hdl; u8 reg[SAA7110_NR_REG]; v4l2_std_id norm; int input; int enable; - int bright; - int contrast; - int hue; - int sat; wait_queue_head_t wq; }; @@ -71,6 +69,11 @@ static inline struct saa7110 *to_saa7110(struct v4l2_subdev *sd) return container_of(sd, struct saa7110, sd); } +static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) +{ + return &container_of(ctrl->handler, struct saa7110, hdl)->sd; +} + /* ----------------------------------------------------------------------- */ /* I2C support functions */ /* ----------------------------------------------------------------------- */ @@ -326,73 +329,22 @@ static int saa7110_s_stream(struct v4l2_subdev *sd, int enable) return 0; } -static int saa7110_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) -{ - switch (qc->id) { - case V4L2_CID_BRIGHTNESS: - return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128); - case V4L2_CID_CONTRAST: - case V4L2_CID_SATURATION: - return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64); - case V4L2_CID_HUE: - return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0); - default: - return -EINVAL; - } - return 0; -} - -static int saa7110_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) -{ - struct saa7110 *decoder = to_saa7110(sd); - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - ctrl->value = decoder->bright; - break; - case V4L2_CID_CONTRAST: - ctrl->value = decoder->contrast; - break; - case V4L2_CID_SATURATION: - ctrl->value = decoder->sat; - break; - case V4L2_CID_HUE: - ctrl->value = decoder->hue; - break; - default: - return -EINVAL; - } - return 0; -} - -static int saa7110_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl) { - struct saa7110 *decoder = to_saa7110(sd); + struct v4l2_subdev *sd = to_sd(ctrl); switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: - if (decoder->bright != ctrl->value) { - decoder->bright = ctrl->value; - saa7110_write(sd, 0x19, decoder->bright); - } + saa7110_write(sd, 0x19, ctrl->val); break; case V4L2_CID_CONTRAST: - if (decoder->contrast != ctrl->value) { - decoder->contrast = ctrl->value; - saa7110_write(sd, 0x13, decoder->contrast); - } + saa7110_write(sd, 0x13, ctrl->val); break; case V4L2_CID_SATURATION: - if (decoder->sat != ctrl->value) { - decoder->sat = ctrl->value; - saa7110_write(sd, 0x12, decoder->sat); - } + saa7110_write(sd, 0x12, ctrl->val); break; case V4L2_CID_HUE: - if (decoder->hue != ctrl->value) { - decoder->hue = ctrl->value; - saa7110_write(sd, 0x07, decoder->hue); - } + saa7110_write(sd, 0x07, ctrl->val); break; default: return -EINVAL; @@ -409,11 +361,19 @@ static int saa7110_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ide /* ----------------------------------------------------------------------- */ +static const struct v4l2_ctrl_ops saa7110_ctrl_ops = { + .s_ctrl = saa7110_s_ctrl, +}; + static const struct v4l2_subdev_core_ops saa7110_core_ops = { .g_chip_ident = saa7110_g_chip_ident, - .g_ctrl = saa7110_g_ctrl, - .s_ctrl = saa7110_s_ctrl, - .queryctrl = saa7110_queryctrl, + .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, + .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, + .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, + .g_ctrl = v4l2_subdev_g_ctrl, + .s_ctrl = v4l2_subdev_s_ctrl, + .queryctrl = v4l2_subdev_queryctrl, + .querymenu = v4l2_subdev_querymenu, .s_std = saa7110_s_std, }; @@ -454,10 +414,25 @@ static int saa7110_probe(struct i2c_client *client, decoder->norm = V4L2_STD_PAL; decoder->input = 0; decoder->enable = 1; - decoder->bright = 32768; - decoder->contrast = 32768; - decoder->hue = 32768; - decoder->sat = 32768; + v4l2_ctrl_handler_init(&decoder->hdl, 2); + v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); + v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, + V4L2_CID_CONTRAST, 0, 127, 1, 64); + v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, + V4L2_CID_SATURATION, 0, 127, 1, 64); + v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, + V4L2_CID_HUE, -128, 127, 1, 0); + sd->ctrl_handler = &decoder->hdl; + if (decoder->hdl.error) { + int err = decoder->hdl.error; + + v4l2_ctrl_handler_free(&decoder->hdl); + kfree(decoder); + return err; + } + v4l2_ctrl_handler_setup(&decoder->hdl); + init_waitqueue_head(&decoder->wq); rv = saa7110_write_block(sd, initseq, sizeof(initseq)); @@ -490,9 +465,11 @@ static int saa7110_probe(struct i2c_client *client, static int saa7110_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct saa7110 *decoder = to_saa7110(sd); v4l2_device_unregister_subdev(sd); - kfree(to_saa7110(sd)); + v4l2_ctrl_handler_free(&decoder->hdl); + kfree(decoder); return 0; }