From patchwork Wed Mar 15 19:43:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Ogletree X-Patchwork-Id: 663823 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A6FD5C6FD1D for ; Wed, 15 Mar 2023 19:44:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230163AbjCOToV (ORCPT ); Wed, 15 Mar 2023 15:44:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229546AbjCOToU (ORCPT ); Wed, 15 Mar 2023 15:44:20 -0400 Received: from mx0b-001ae601.pphosted.com (mx0a-001ae601.pphosted.com [67.231.149.25]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF098E192; Wed, 15 Mar 2023 12:44:17 -0700 (PDT) Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 32FJZs8l008235; Wed, 15 Mar 2023 14:44:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=PODMain02222019; bh=Kzw+l8cqcJr1TSQ6WJDIEKu8YNtPoQdgFhRljLL9mF4=; b=QqIS5jloX/fG4fXNvugksYi2rctNr25TfrONuwGOD/5T1cUSMqV2v+SMImGU6okdBE2L +mdIYZYwbgOnQVPupgyK2z2YVMPN6uQC+OEzyRIuEAgvGod0/B77nPhmdMXpf146qWN0 J/8pEr8cCgCS4M6Fc08BvgVFFg8pDWmAo/bF44+pJcd/0u+lDBcZmkNDFtc4ObhMJrcw 8HultaCiuNIPlP+Bf9RJXLMlSHid8EOfSN5mbbLncmCkKil0QTGIPxwrM9bhqzl50zwN gvCxO2Br3ThY6fRVYDuym5wU4A8/ZzV715ekhP88EYmNmKl4IeiSqETfrlUsjZ+UAaqJ XA== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0a-001ae601.pphosted.com (PPS) with ESMTPS id 3pb2cr91ct-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 15 Mar 2023 14:44:15 -0500 Received: from ediex02.ad.cirrus.com (198.61.84.81) by ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Wed, 15 Mar 2023 14:44:13 -0500 Received: from aus-sw-rshr002.ad.cirrus.com (141.131.206.14) by anon-ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Wed, 15 Mar 2023 14:44:13 -0500 Received: by aus-sw-rshr002.ad.cirrus.com (Postfix, from userid 46936) id 214064C1266; Wed, 15 Mar 2023 19:44:13 +0000 (UTC) From: James Ogletree To: CC: , , "James Ogletree" Subject: [PATCH] Input: support pre-stored effects Date: Wed, 15 Mar 2023 19:43:45 +0000 Message-ID: <20230315194345.1848427-1-james.ogletree@cirrus.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: g6oMvsgP7Lf9hTueMbDN0cMSzPBFiNLl X-Proofpoint-GUID: g6oMvsgP7Lf9hTueMbDN0cMSzPBFiNLl X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org At present, the best way to define effects that pre-exist in device memory is by utilizing the custom_data field, which it was not intended for, and requires arbitrary interpretation by the driver to make meaningful. Provide option for defining pre-stored effects in device memory. Signed-off-by: James Ogletree --- include/uapi/linux/input.h | 32 ++++++++++++++++++++++---------- 1 file changed, 22 insertions(+), 10 deletions(-) diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h index 2557eb7b0561..689e5fa10647 100644 --- a/include/uapi/linux/input.h +++ b/include/uapi/linux/input.h @@ -428,17 +428,27 @@ struct ff_rumble_effect { __u16 weak_magnitude; }; +/** + * struct ff_prestored_effect - defines parameters of a pre-stored force-feedback effect + * @index: index of effect + * @bank: memory bank of effect + */ +struct ff_prestored_effect { + __u16 index; + __u16 bank; +}; + /** * struct ff_effect - defines force feedback effect * @type: type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING, - * FF_FRICTION, FF_DAMPER, FF_RUMBLE, FF_INERTIA, or FF_CUSTOM) + * FF_FRICTION, FF_DAMPER, FF_RUMBLE, FF_INERTIA, FF_PRESTORED, or FF_CUSTOM) * @id: an unique id assigned to an effect * @direction: direction of the effect * @trigger: trigger conditions (struct ff_trigger) * @replay: scheduling of the effect (struct ff_replay) * @u: effect-specific structure (one of ff_constant_effect, ff_ramp_effect, - * ff_periodic_effect, ff_condition_effect, ff_rumble_effect) further - * defining effect parameters + * ff_periodic_effect, ff_condition_effect, ff_rumble_effect, ff_prestored_effect) + * further defining effect parameters * * This structure is sent through ioctl from the application to the driver. * To create a new effect application should set its @id to -1; the kernel @@ -464,6 +474,7 @@ struct ff_effect { struct ff_periodic_effect periodic; struct ff_condition_effect condition[2]; /* One for each axis */ struct ff_rumble_effect rumble; + struct ff_prestored_effect prestored; } u; }; @@ -479,20 +490,21 @@ struct ff_effect { #define FF_DAMPER 0x55 #define FF_INERTIA 0x56 #define FF_RAMP 0x57 +#define FF_PRESTORED 0x58 #define FF_EFFECT_MIN FF_RUMBLE -#define FF_EFFECT_MAX FF_RAMP +#define FF_EFFECT_MAX FF_PRESTORED /* * Force feedback periodic effect types */ -#define FF_SQUARE 0x58 -#define FF_TRIANGLE 0x59 -#define FF_SINE 0x5a -#define FF_SAW_UP 0x5b -#define FF_SAW_DOWN 0x5c -#define FF_CUSTOM 0x5d +#define FF_SQUARE 0x59 +#define FF_TRIANGLE 0x5a +#define FF_SINE 0x5b +#define FF_SAW_UP 0x5c +#define FF_SAW_DOWN 0x5d +#define FF_CUSTOM 0x5e #define FF_WAVEFORM_MIN FF_SQUARE #define FF_WAVEFORM_MAX FF_CUSTOM