From patchwork Thu Feb 8 08:43:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Echtler X-Patchwork-Id: 10206717 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0D3BE602D8 for ; Thu, 8 Feb 2018 08:44:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 022EE29158 for ; Thu, 8 Feb 2018 08:44:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EB3AE29427; Thu, 8 Feb 2018 08:44:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7897229158 for ; Thu, 8 Feb 2018 08:44:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750806AbeBHIo3 (ORCPT ); Thu, 8 Feb 2018 03:44:29 -0500 Received: from butterbrot.org ([176.9.106.16]:48469 "EHLO butterbrot.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750865AbeBHIo2 (ORCPT ); Thu, 8 Feb 2018 03:44:28 -0500 Received: from flunder.scc.uni-weimar.de (eduroam-059-145.scc.uni-weimar.de [141.54.59.145]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by butterbrot.org (Postfix) with ESMTPSA id 5BD884AE0257; Thu, 8 Feb 2018 09:44:27 +0100 (CET) From: Florian Echtler To: hverkuil@xs4all.nl, linux-media@vger.kernel.org Cc: linux-input@vger.kernel.org, modin@yuri.at, Florian Echtler Subject: [PATCH 2/4] add default settings and module parameters for video controls Date: Thu, 8 Feb 2018 09:43:04 +0100 Message-Id: <1518079386-4647-3-git-send-email-floe@butterbrot.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1518079386-4647-1-git-send-email-floe@butterbrot.org> References: <1518079386-4647-1-git-send-email-floe@butterbrot.org> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds parameter definitions and module parameters for the four userspace controls that the SUR40 can currently provide. Signed-off-by: Florian Echtler --- drivers/input/touchscreen/sur40.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c index 8375b06..8a5b031 100644 --- a/drivers/input/touchscreen/sur40.c +++ b/drivers/input/touchscreen/sur40.c @@ -149,6 +149,40 @@ struct sur40_image_header { #define SUR40_TOUCH 0x02 #define SUR40_TAG 0x04 +/* video controls */ +#define SUR40_BRIGHTNESS_MAX 0xff +#define SUR40_BRIGHTNESS_MIN 0x00 +#define SUR40_BRIGHTNESS_DEF 0xff + +#define SUR40_CONTRAST_MAX 0x0f +#define SUR40_CONTRAST_MIN 0x00 +#define SUR40_CONTRAST_DEF 0x0a + +#define SUR40_GAIN_MAX 0x09 +#define SUR40_GAIN_MIN 0x00 +#define SUR40_GAIN_DEF 0x08 + +#define SUR40_BACKLIGHT_MAX 0x01 +#define SUR40_BACKLIGHT_MIN 0x00 +#define SUR40_BACKLIGHT_DEF 0x01 + +#define sur40_str(s) #s +#define SUR40_PARAM_RANGE(lo, hi) " (range " sur40_str(lo) "-" sur40_str(hi) ")" + +/* module parameters */ +static uint brightness = SUR40_BRIGHTNESS_DEF; +module_param(brightness, uint, 0644); +MODULE_PARM_DESC(brightness, "set initial brightness" + SUR40_PARAM_RANGE(SUR40_BRIGHTNESS_MIN, SUR40_BRIGHTNESS_MAX)); +static uint contrast = SUR40_CONTRAST_DEF; +module_param(contrast, uint, 0644); +MODULE_PARM_DESC(contrast, "set initial contrast" + SUR40_PARAM_RANGE(SUR40_CONTRAST_MIN, SUR40_CONTRAST_MAX)); +static uint gain = SUR40_GAIN_DEF; +module_param(gain, uint, 0644); +MODULE_PARM_DESC(gain, "set initial gain" + SUR40_PARAM_RANGE(SUR40_GAIN_MIN, SUR40_GAIN_MAX)); + static const struct v4l2_pix_format sur40_pix_format[] = { { .pixelformat = V4L2_TCH_FMT_TU08,