From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EF6C3C4345F for ; Fri, 19 Mar 2021 17:10:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA833619A0 for ; Fri, 19 Mar 2021 17:10:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230465AbhCSRJz (ORCPT ); Fri, 19 Mar 2021 13:09:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230262AbhCSRJR (ORCPT ); Fri, 19 Mar 2021 13:09:17 -0400 Received: from mail-ej1-x62f.google.com (mail-ej1-x62f.google.com [IPv6:2a00:1450:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ECD76C06174A for ; Fri, 19 Mar 2021 10:09:16 -0700 (PDT) Received: by mail-ej1-x62f.google.com with SMTP id ce10so10868577ejb.6 for ; Fri, 19 Mar 2021 10:09:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=4XMIX+R7wmnc+IpMUxiC/p1WJQ4mHbplhQiueacadBE=; b=ZMxcE6jpMqVDDsrHi4iakx5pDQQS1Bwd+8BI0x73w/CuyAqAAbMGfGRxY6BM6F2AUF 96BgpbS7UejHMh7S5+3r0tJfICqoJZmEQoPcGgLI7sGwPD61Qk+6HUh0uHYlKwo3KgvA D9yHNuJxV66nEmwpzmHvdtzj0KbvUeuzjk5FA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4XMIX+R7wmnc+IpMUxiC/p1WJQ4mHbplhQiueacadBE=; b=aHF+9CtwjX22VLyMv6wsQ9FwcKN01bHz+xjmP5YVIhv+LswnSd8yLxmBQo5AepNMba V8x05lmrV0LdWDFEe2LiUWUUoRze1mlV3bb/ppf0FTn21PwvQwLBxvwhRWmFQIPRQ0vb 3p2pXB0hMkUJmMwCc+s/+1ivHyuthOzYl/l/KMdKqhrv+mlhAq/gEWDzsSMu4RENGzpe S/GNRDRHut6hqXDfoWL7sJ9tKf3iSxabMj/bV/gn6uZXt1cuy7iEL2vo9ZASBspoUcyv jjjO7VumampZ00IpSlq25gUg4pu5Jb8hzUKc1wMzCNwHVVF9sNeOeSlTcCKfgmwyAFDb MCig== X-Gm-Message-State: AOAM530DsNHNdg2+M/5gTUEJmNg0jxV5Y2ZZQ1u8VXbetTd5GVcC8isi nByzdjaa/83Cg8dPylaq3vb3dg== X-Google-Smtp-Source: ABdhPJzM1vXUp/Yxa4VX3Rz6oYmY7JkdNzkvU/9bwbwb1heZmXPDZRAb3/ifRu56VPrWnFkzHDMXCg== X-Received: by 2002:a17:907:3f96:: with SMTP id hr22mr5375826ejc.427.1616173755670; Fri, 19 Mar 2021 10:09:15 -0700 (PDT) Received: from alco.lan ([80.71.134.83]) by smtp.gmail.com with ESMTPSA id be27sm4506050edb.47.2021.03.19.10.09.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Mar 2021 10:09:15 -0700 (PDT) From: Ricardo Ribalda To: Laurent Pinchart , Mauro Carvalho Chehab , Hans Verkuil , Sergey Senozhatsky , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, tfiga@chromium.org Cc: Ricardo Ribalda Subject: [PATCH v8 09/19] media: uvcvideo: Add support for V4L2_CTRL_TYPE_CTRL_CLASS Date: Fri, 19 Mar 2021 18:08:56 +0100 Message-Id: <20210319170906.278238-10-ribalda@chromium.org> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog In-Reply-To: <20210319170906.278238-1-ribalda@chromium.org> References: <20210319170906.278238-1-ribalda@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Create all the class controls for the device defined controls. Fixes v4l2-compliance: Control ioctls (Input 0): fail: v4l2-test-controls.cpp(216): missing control class for class 00980000 fail: v4l2-test-controls.cpp(216): missing control tclass for class 009a0000 test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: FAIL Reviewed-by: Hans Verkuil Signed-off-by: Ricardo Ribalda --- drivers/media/usb/uvc/uvc_ctrl.c | 94 ++++++++++++++++++++++++++++++++ drivers/media/usb/uvc/uvcvideo.h | 5 ++ 2 files changed, 99 insertions(+) diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c index b75da65115ef..ba14733db757 100644 --- a/drivers/media/usb/uvc/uvc_ctrl.c +++ b/drivers/media/usb/uvc/uvc_ctrl.c @@ -357,6 +357,15 @@ static const struct uvc_control_info uvc_ctrls[] = { }, }; +static const struct uvc_control_class uvc_control_class[] = { + { + .id = V4L2_CID_CAMERA_CLASS, + }, + { + .id = V4L2_CID_USER_CLASS, + }, +}; + static const struct uvc_menu_info power_line_frequency_controls[] = { { 0, "Disabled" }, { 1, "50 Hz" }, @@ -1024,6 +1033,49 @@ static int __uvc_ctrl_get(struct uvc_video_chain *chain, return 0; } +static int __uvc_query_v4l2_class(struct uvc_video_chain *chain, u32 req_id, + u32 found_id) +{ + bool find_next = req_id & V4L2_CTRL_FLAG_NEXT_CTRL; + unsigned int i; + + req_id &= V4L2_CTRL_ID_MASK; + + for (i = 0; i < ARRAY_SIZE(uvc_control_class); i++) { + if (!(chain->ctrl_class_bitmap & BIT(i))) + continue; + if (!find_next) { + if (uvc_control_class[i].id == req_id) + return i; + continue; + } + if (uvc_control_class[i].id > req_id && + uvc_control_class[i].id < found_id) + return i; + } + + return -ENODEV; +} + +static int uvc_query_v4l2_class(struct uvc_video_chain *chain, u32 req_id, + u32 found_id, struct v4l2_queryctrl *v4l2_ctrl) +{ + int idx; + + idx = __uvc_query_v4l2_class(chain, req_id, found_id); + if (idx < 0) + return -ENODEV; + + memset(v4l2_ctrl, 0, sizeof(*v4l2_ctrl)); + v4l2_ctrl->id = uvc_control_class[idx].id; + strscpy(v4l2_ctrl->name, v4l2_ctrl_get_name(v4l2_ctrl->id), + sizeof(v4l2_ctrl->name)); + v4l2_ctrl->type = V4L2_CTRL_TYPE_CTRL_CLASS; + v4l2_ctrl->flags = V4L2_CTRL_FLAG_WRITE_ONLY + | V4L2_CTRL_FLAG_READ_ONLY; + return 0; +} + static int __uvc_query_v4l2_ctrl(struct uvc_video_chain *chain, struct uvc_control *ctrl, struct uvc_control_mapping *mapping, @@ -1127,12 +1179,31 @@ int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain, if (ret < 0) return -ERESTARTSYS; + /* Check if the ctrl is a know class */ + if (!(v4l2_ctrl->id & V4L2_CTRL_FLAG_NEXT_CTRL)) { + ret = uvc_query_v4l2_class(chain, v4l2_ctrl->id, 0, v4l2_ctrl); + if (!ret) + goto done; + } + ctrl = uvc_find_control(chain, v4l2_ctrl->id, &mapping); if (ctrl == NULL) { ret = -EINVAL; goto done; } + /* + * If we're enumerating control with V4L2_CTRL_FLAG_NEXT_CTRL, check if + * a class should be inserted between the previous control and the one + * we have just found. + */ + if (v4l2_ctrl->id & V4L2_CTRL_FLAG_NEXT_CTRL) { + ret = uvc_query_v4l2_class(chain, v4l2_ctrl->id, mapping->id, + v4l2_ctrl); + if (!ret) + goto done; + } + ret = __uvc_query_v4l2_ctrl(chain, ctrl, mapping, v4l2_ctrl); done: mutex_unlock(&chain->ctrl_mutex); @@ -1426,6 +1497,11 @@ static int uvc_ctrl_add_event(struct v4l2_subscribed_event *sev, unsigned elems) if (ret < 0) return -ERESTARTSYS; + if (__uvc_query_v4l2_class(handle->chain, sev->id, 0) >= 0) { + ret = 0; + goto done; + } + ctrl = uvc_find_control(handle->chain, sev->id, &mapping); if (ctrl == NULL) { ret = -EINVAL; @@ -1459,7 +1535,10 @@ static void uvc_ctrl_del_event(struct v4l2_subscribed_event *sev) struct uvc_fh *handle = container_of(sev->fh, struct uvc_fh, vfh); mutex_lock(&handle->chain->ctrl_mutex); + if (__uvc_query_v4l2_class(handle->chain, sev->id, 0) >= 0) + goto done; list_del(&sev->node); +done: mutex_unlock(&handle->chain->ctrl_mutex); } @@ -1577,6 +1656,9 @@ int uvc_ctrl_get(struct uvc_video_chain *chain, struct uvc_control *ctrl; struct uvc_control_mapping *mapping; + if (__uvc_query_v4l2_class(chain, xctrl->id, 0) >= 0) + return -EACCES; + ctrl = uvc_find_control(chain, xctrl->id, &mapping); if (ctrl == NULL) return -EINVAL; @@ -1596,6 +1678,9 @@ int uvc_ctrl_set(struct uvc_fh *handle, s32 max; int ret; + if (__uvc_query_v4l2_class(chain, xctrl->id, 0) >= 0) + return -EACCES; + ctrl = uvc_find_control(chain, xctrl->id, &mapping); if (ctrl == NULL) return -EINVAL; @@ -2062,6 +2147,7 @@ static int __uvc_ctrl_add_mapping(struct uvc_video_chain *chain, { struct uvc_control_mapping *map; unsigned int size; + unsigned int i; /* Most mappings come from static kernel data and need to be duplicated. * Mappings that come from userspace will be unnecessarily duplicated, @@ -2085,6 +2171,14 @@ static int __uvc_ctrl_add_mapping(struct uvc_video_chain *chain, if (map->set == NULL) map->set = uvc_set_le_value; + for (i = 0; i < ARRAY_SIZE(uvc_control_class); i++) { + if (V4L2_CTRL_ID2WHICH(uvc_control_class[i].id) == + V4L2_CTRL_ID2WHICH(map->id)) { + chain->ctrl_class_bitmap |= BIT(i); + break; + } + } + list_add_tail(&map->list, &ctrl->info.mappings); uvc_dbg(chain->dev, CONTROL, "Adding mapping '%s' to control %pUl/%u\n", map->name, ctrl->info.entity, ctrl->info.selector); diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 97df5ecd66c9..b81d3f65e52e 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -262,6 +262,10 @@ struct uvc_control_mapping { u8 *data); }; +struct uvc_control_class { + u32 id; +}; + struct uvc_control { struct uvc_entity *entity; struct uvc_control_info info; @@ -475,6 +479,7 @@ struct uvc_video_chain { struct v4l2_prio_state prio; /* V4L2 priority state */ u32 caps; /* V4L2 chain-wide caps */ + u8 ctrl_class_bitmap; /* Bitmap of valid classes */ }; struct uvc_stats_frame { -- 2.31.0.rc2.261.g7f71774620-goog