From patchwork Thu Jan 5 13:52:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ricardo Ribalda X-Patchwork-Id: 639609 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 BCFDCC63709 for ; Thu, 5 Jan 2023 13:56:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234322AbjAEN4K (ORCPT ); Thu, 5 Jan 2023 08:56:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233789AbjAENz0 (ORCPT ); Thu, 5 Jan 2023 08:55:26 -0500 Received: from mail-ej1-x632.google.com (mail-ej1-x632.google.com [IPv6:2a00:1450:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC7DE4EC8F for ; Thu, 5 Jan 2023 05:53:18 -0800 (PST) Received: by mail-ej1-x632.google.com with SMTP id t17so90066209eju.1 for ; Thu, 05 Jan 2023 05:53:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=i22sBtg5sgJPjmyCPs4YT31o+9MgBiTxsORfyqFHwvE=; b=TivNd1L3MetgrHzNbzrqF6gsxMkFN+oRpnymkK0S9KBqugBCT7Tx3zd4VLTYoj8VJS kb1DJ3+wEMtRymOQnMfKO2bh9xPMNKt+rsmrP9ipHYKnp5in1/euDOO/yNMGI4zln7aH KLoesQ4J+7t4AFidOICzHCQGyAP4MgThHrlz0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=i22sBtg5sgJPjmyCPs4YT31o+9MgBiTxsORfyqFHwvE=; b=VyUr5V27ZXhVOo4U0XH9APhzslW73CgsSCGdk0xFR8sSSjeoRDLsI31yrWh6ZOv6FR Zh/FlXJ+3+0vQZr25zxZjpELwItXzJm+XdEjEPWzsbYVWVXaKoto3IjQ3e4G2Fk7lpgd VQB0spk+k5LRFHbxka8qXQ9yaB1n5WzU+irMQTolpuBrI2CgrbaDTdmnGpNHAE3cEV1R 5CQAfthgl8uJzt+9+1/uGBRizSzUZuBNsXxBdojPj6INHwkrGW6EA7Zxv0g+wEEO/h+R hTiY6AAwm/N6RSYQYYh3l/eCXNXI4CY/tq4CGlDDCAm+zBFqKcJzNnemBrOXKKXToTGn s9kw== X-Gm-Message-State: AFqh2krkviAnR6K3JrnVHcHJlEovx7MdEv7uPiZITvrA6hVms7kTgXuZ qDvH+25yj5H/9i0AaEWVlSMK4w== X-Google-Smtp-Source: AMrXdXv44elPCiEVRpl+fjdUJ8F8ssFDQdBYx0YXbryye3AWrGLkUKiyMdC6A3WqUWzxIGQRr70b3g== X-Received: by 2002:a17:907:6d0c:b0:7c1:652:d109 with SMTP id sa12-20020a1709076d0c00b007c10652d109mr52072097ejc.35.1672926797359; Thu, 05 Jan 2023 05:53:17 -0800 (PST) Received: from alco.roam.corp.google.com ([2620:0:1059:10:43c3:8ac4:5d6f:2251]) by smtp.gmail.com with ESMTPSA id x11-20020a170906b08b00b007806c1474e1sm16459084ejy.127.2023.01.05.05.53.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Jan 2023 05:53:17 -0800 (PST) From: Ricardo Ribalda Date: Thu, 05 Jan 2023 14:52:54 +0100 Subject: [PATCH v2 3/7] media: uvcvideo: Implement mask for V4L2_CTRL_TYPE_MENU MIME-Version: 1.0 Message-Id: <20230105-uvc-gcc5-v2-3-2ba6c660d6f5@chromium.org> References: <20230105-uvc-gcc5-v2-0-2ba6c660d6f5@chromium.org> In-Reply-To: <20230105-uvc-gcc5-v2-0-2ba6c660d6f5@chromium.org> To: Laurent Pinchart , Mauro Carvalho Chehab Cc: Ricardo Ribalda , linux-media@vger.kernel.org, Yunke Cao , linux-kernel@vger.kernel.org, Sergey Senozhatsky X-Mailer: b4 0.11.0-dev-696ae X-Developer-Signature: v=1; a=openpgp-sha256; l=6328; i=ribalda@chromium.org; h=from:subject:message-id; bh=c0qCW+bmUSyESwPogSJMQMg1NsP7nOLTyNEVHbIZYzQ=; b=owEBbQKS/ZANAwAKAdE30T7POsSIAcsmYgBjttZAEklFRkFOGUsnQefFhlT5IB3ZM/mBPIRcA6kM rXJNK7aJAjMEAAEKAB0WIQREDzjr+/4oCDLSsx7RN9E+zzrEiAUCY7bWQAAKCRDRN9E+zzrEiAfBEA CQNUUXxTzxVcBAMm8hAnHAajrQRxKGBvD7aTNdAAikwRG6xuy9/0e11wWC1kb0thvwsOcQDim4+hEy USQ0jCMMpObC1coBPBRw0CMLe9sfpia1yPvVqbjpSsCiO3bkAKnpnTTiX8THH0bOrUVL2z47SIOJHj Azvg4br79VefCqsK2u8XLEH6PiI7ltxjYnhJ6fXnvmLBZhroVd6Bcc5I3txQNaO3WmzP86Oceq8aP4 vf06CVwUi8oSWQiI5Am9B7Z/V4Wc2odJW71ADi6L1GyX2NyEOMmYdGA20df996MUcpYQrUM3LEhoGA JTg21NYE4f6xNHCzOKzP0KShstF5eUHIU4lsdPOWBFWeuQDh7+GlFj1nDQxu8Y8pDXF0mtEcGeYy21 PTwxe00XouzV3yTgN3CVSpU5ouNSo4I0XS4Oe1UAxc12KqYJEwiUMEPFsz/Y933DGbsgLzaIvkqI7H 2BH0ycEd+1ffu8/9n4dxJ76qiUUh8GbJO8rK2U5Tp2vDZbmVBwmygEpj/UeNQaF8rM/maoDQmXhDRk cfzlniiHHpXuKweUWv7/bPRkRU9GdmQ6HLD1sQALiULmh1pvsNPot1m8HNswrvFg5mmW3dIcgnC6J9 gyuQiPtZNH0veMEWueeaINv1+UXdZdq9rllEtGnCLVc83NrssSGlQQ7DISqg== X-Developer-Key: i=ribalda@chromium.org; a=openpgp; fpr=9EC3BB66E2FC129A6F90B39556A0D81F9F782DA9 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Replace the count with a mask field that lets us choose not only the max value, but also the minimum value and what values are valid in between. Reviewed-by: Laurent Pinchart Signed-off-by: Ricardo Ribalda Suggested-by: Laurent Pinchart --- drivers/media/usb/uvc/uvc_ctrl.c | 33 +++++++++++++++++++++++---------- drivers/media/usb/uvc/uvc_driver.c | 4 +++- drivers/media/usb/uvc/uvc_v4l2.c | 3 ++- drivers/media/usb/uvc/uvcvideo.h | 2 +- 4 files changed, 29 insertions(+), 13 deletions(-) diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c index ffa0e2654264..2ebe5cc18ad9 100644 --- a/drivers/media/usb/uvc/uvc_ctrl.c +++ b/drivers/media/usb/uvc/uvc_ctrl.c @@ -6,6 +6,7 @@ * Laurent Pinchart (laurent.pinchart@ideasonboard.com) */ +#include #include #include #include @@ -525,7 +526,8 @@ static const struct uvc_control_mapping uvc_ctrl_mappings[] = { .v4l2_type = V4L2_CTRL_TYPE_MENU, .data_type = UVC_CTRL_DATA_TYPE_BITMASK, .menu_info = exposure_auto_controls, - .menu_count = ARRAY_SIZE(exposure_auto_controls), + .menu_mask = + GENMASK(ARRAY_SIZE(exposure_auto_controls) - 1, 0), .slave_ids = { V4L2_CID_EXPOSURE_ABSOLUTE, }, }, { @@ -731,7 +733,8 @@ static const struct uvc_control_mapping uvc_ctrl_mappings_uvc11[] = { .v4l2_type = V4L2_CTRL_TYPE_MENU, .data_type = UVC_CTRL_DATA_TYPE_ENUM, .menu_info = power_line_frequency_controls, - .menu_count = ARRAY_SIZE(power_line_frequency_controls) - 1, + .menu_mask = GENMASK(V4L2_CID_POWER_LINE_FREQUENCY_60HZ, + V4L2_CID_POWER_LINE_FREQUENCY_DISABLED), }, }; @@ -745,7 +748,8 @@ static const struct uvc_control_mapping uvc_ctrl_mappings_uvc15[] = { .v4l2_type = V4L2_CTRL_TYPE_MENU, .data_type = UVC_CTRL_DATA_TYPE_ENUM, .menu_info = power_line_frequency_controls, - .menu_count = ARRAY_SIZE(power_line_frequency_controls), + .menu_mask = GENMASK(V4L2_CID_POWER_LINE_FREQUENCY_AUTO, + V4L2_CID_POWER_LINE_FREQUENCY_DISABLED), }, }; @@ -975,7 +979,9 @@ static s32 __uvc_ctrl_get_value(struct uvc_control_mapping *mapping, const struct uvc_menu_info *menu = mapping->menu_info; unsigned int i; - for (i = 0; i < mapping->menu_count; ++i, ++menu) { + for (i = 0; BIT(i) <= mapping->menu_mask; ++i, ++menu) { + if (!test_bit(i, &mapping->menu_mask)) + continue; if (menu->value == value) { value = i; break; @@ -1228,12 +1234,14 @@ static int __uvc_query_v4l2_ctrl(struct uvc_video_chain *chain, switch (mapping->v4l2_type) { case V4L2_CTRL_TYPE_MENU: - v4l2_ctrl->minimum = 0; - v4l2_ctrl->maximum = mapping->menu_count - 1; + v4l2_ctrl->minimum = ffs(mapping->menu_mask) - 1; + v4l2_ctrl->maximum = fls(mapping->menu_mask) - 1; v4l2_ctrl->step = 1; menu = mapping->menu_info; - for (i = 0; i < mapping->menu_count; ++i, ++menu) { + for (i = 0; BIT(i) <= mapping->menu_mask; ++i, ++menu) { + if (!test_bit(i, &mapping->menu_mask)) + continue; if (menu->value == v4l2_ctrl->default_value) { v4l2_ctrl->default_value = i; break; @@ -1354,7 +1362,7 @@ int uvc_query_v4l2_menu(struct uvc_video_chain *chain, goto done; } - if (query_menu->index >= mapping->menu_count) { + if (!test_bit(query_menu->index, &mapping->menu_mask)) { ret = -EINVAL; goto done; } @@ -1868,8 +1876,13 @@ int uvc_ctrl_set(struct uvc_fh *handle, break; case V4L2_CTRL_TYPE_MENU: - if (xctrl->value < 0 || xctrl->value >= mapping->menu_count) + if (xctrl->value < (ffs(mapping->menu_mask) - 1) || + xctrl->value > (fls(mapping->menu_mask) - 1)) return -ERANGE; + + if (!test_bit(xctrl->value, &mapping->menu_mask)) + return -EINVAL; + value = mapping->menu_info[xctrl->value].value; /* @@ -2306,7 +2319,7 @@ static int __uvc_ctrl_add_mapping(struct uvc_video_chain *chain, INIT_LIST_HEAD(&map->ev_subs); - size = sizeof(*mapping->menu_info) * mapping->menu_count; + size = sizeof(*mapping->menu_info) * fls(mapping->menu_mask); map->menu_info = kmemdup(mapping->menu_info, size, GFP_KERNEL); if (!map->menu_info) goto err_nomem; diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 6d08457ecb9c..e659670ea2d8 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -7,6 +7,7 @@ */ #include +#include #include #include #include @@ -2391,7 +2392,8 @@ static const struct uvc_control_mapping uvc_ctrl_power_line_mapping_limited = { .v4l2_type = V4L2_CTRL_TYPE_MENU, .data_type = UVC_CTRL_DATA_TYPE_ENUM, .menu_info = power_line_frequency_controls_limited, - .menu_count = ARRAY_SIZE(power_line_frequency_controls_limited), + .menu_mask = + GENMASK(ARRAY_SIZE(power_line_frequency_controls_limited) - 1, 0), }; static const struct uvc_device_info uvc_ctrl_power_line_limited = { diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c index 3edb54c086b2..0774a11360c0 100644 --- a/drivers/media/usb/uvc/uvc_v4l2.c +++ b/drivers/media/usb/uvc/uvc_v4l2.c @@ -6,6 +6,7 @@ * Laurent Pinchart (laurent.pinchart@ideasonboard.com) */ +#include #include #include #include @@ -80,7 +81,7 @@ static int uvc_ioctl_ctrl_map(struct uvc_video_chain *chain, goto free_map; } - map->menu_count = xmap->menu_count; + map->menu_mask = GENMASK(xmap->menu_count - 1, 0); break; default: diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 41ba0bbd8171..a8eec43cd860 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -115,7 +115,7 @@ struct uvc_control_mapping { u32 data_type; const struct uvc_menu_info *menu_info; - u32 menu_count; + unsigned long menu_mask; u32 master_id; s32 master_manual;