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{ "id": 11901, "url": "https://patchwork.libcamera.org/api/1.1/patches/11901/?format=api", "web_url": "https://patchwork.libcamera.org/patch/11901/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20210413075013.3069213-3-hiroh@chromium.org>", "date": "2021-04-13T07:50:10", "name": "[libcamera-devel,RFC,v2,2/5] libcamera: V4L2Device: Support v4l2 menu control", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "7440c61e5b19cf55f3486594344c6a98dc70e971", "submitter": { "id": 63, "url": "https://patchwork.libcamera.org/api/1.1/people/63/?format=api", "name": "Hirokazu Honda", "email": "hiroh@chromium.org" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/11901/mbox/", "series": [ { "id": 1916, "url": "https://patchwork.libcamera.org/api/1.1/series/1916/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1916", "date": "2021-04-13T07:50:08", "name": "Report available test pattern modes", "version": 2, "mbox": "https://patchwork.libcamera.org/series/1916/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/11901/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/11901/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 39E44BD224\n\tfor <parsemail@patchwork.libcamera.org>;\n\tTue, 13 Apr 2021 07:50:30 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id E5D2C687F4;\n\tTue, 13 Apr 2021 09:50:29 +0200 (CEST)", "from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com\n\t[IPv6:2607:f8b0:4864:20::62a])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 5E55B687F3\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tTue, 13 Apr 2021 09:50:28 +0200 (CEST)", "by mail-pl1-x62a.google.com with SMTP id u7so5954292plr.6\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tTue, 13 Apr 2021 00:50:28 -0700 (PDT)", "from hiroh2.tok.corp.google.com\n\t([2401:fa00:8f:2:84f5:7981:dfbe:8f02])\n\tby smtp.gmail.com with ESMTPSA id\n\tn25sm11525125pff.154.2021.04.13.00.50.24\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tTue, 13 Apr 2021 00:50:26 -0700 (PDT)" ], "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=chromium.org header.i=@chromium.org\n\theader.b=\"cqXgrn7R\"; 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\n\tTue, 13 Apr 2021 00:50:26 -0700 (PDT)", "From": "Hirokazu Honda <hiroh@chromium.org>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Tue, 13 Apr 2021 16:50:10 +0900", "Message-Id": "<20210413075013.3069213-3-hiroh@chromium.org>", "X-Mailer": "git-send-email 2.31.1.295.g9ea45b61b8-goog", "In-Reply-To": "<20210413075013.3069213-1-hiroh@chromium.org>", "References": "<20210413075013.3069213-1-hiroh@chromium.org>", "MIME-Version": "1.0", "Subject": "[libcamera-devel] [RFC PATCH v2 2/5] libcamera: V4L2Device: Support\n\tv4l2 menu control", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Cc": "jmondi@jacopo.org", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "This adds a support of v4l2 menu.\n\nSigned-off-by: Hirokazu Honda <hiroh@chromium.org>\n---\n include/libcamera/internal/v4l2_controls.h | 1 +\n include/libcamera/internal/v4l2_device.h | 3 +\n src/libcamera/v4l2_controls.cpp | 10 +-\n src/libcamera/v4l2_device.cpp | 104 ++++++++++++++++++++-\n 4 files changed, 112 insertions(+), 6 deletions(-)", "diff": "diff --git a/include/libcamera/internal/v4l2_controls.h b/include/libcamera/internal/v4l2_controls.h\nindex 0851b8dd..c42f2529 100644\n--- a/include/libcamera/internal/v4l2_controls.h\n+++ b/include/libcamera/internal/v4l2_controls.h\n@@ -24,6 +24,7 @@ class V4L2ControlInfo : public ControlInfo\n {\n public:\n \tV4L2ControlInfo(const struct v4l2_query_ext_ctrl &ctrl);\n+\tV4L2ControlInfo(const ControlInfo &ctrl);\n };\n \n } /* namespace libcamera */\ndiff --git a/include/libcamera/internal/v4l2_device.h b/include/libcamera/internal/v4l2_device.h\nindex 4cce3840..2436a83c 100644\n--- a/include/libcamera/internal/v4l2_device.h\n+++ b/include/libcamera/internal/v4l2_device.h\n@@ -53,6 +53,9 @@ protected:\n \tint fd() const { return fd_; }\n \n private:\n+\tbool createV4L2ControlInfoForMenu(const v4l2_query_ext_ctrl &ctrl,\n+\t\t\t\t\t V4L2ControlInfo &v4l2CtrlInfo);\n+\n \tvoid listControls();\n \tvoid updateControls(ControlList *ctrls,\n \t\t\t const std::vector<v4l2_ext_control> &v4l2Ctrls);\ndiff --git a/src/libcamera/v4l2_controls.cpp b/src/libcamera/v4l2_controls.cpp\nindex 3f8ec6ca..2c965cfa 100644\n--- a/src/libcamera/v4l2_controls.cpp\n+++ b/src/libcamera/v4l2_controls.cpp\n@@ -73,9 +73,12 @@ ControlType v4l2_ctrl_type(const struct v4l2_query_ext_ctrl &ctrl)\n \t\treturn ControlTypeInteger64;\n \n \tcase V4L2_CTRL_TYPE_MENU:\n+\tcase V4L2_CTRL_TYPE_INTEGER_MENU:\n+\t\treturn ControlTypeMenu;\n+\n \tcase V4L2_CTRL_TYPE_BUTTON:\n \tcase V4L2_CTRL_TYPE_BITMASK:\n-\tcase V4L2_CTRL_TYPE_INTEGER_MENU:\n+\n \t\t/*\n \t\t * More precise types may be needed, for now use a 32-bit\n \t\t * integer type.\n@@ -148,4 +151,9 @@ V4L2ControlInfo::V4L2ControlInfo(const struct v4l2_query_ext_ctrl &ctrl)\n \t}\n }\n \n+V4L2ControlInfo::V4L2ControlInfo(const ControlInfo &ctrl)\n+\t: ControlInfo(ctrl)\n+{\n+}\n+\n } /* namespace libcamera */\ndiff --git a/src/libcamera/v4l2_device.cpp b/src/libcamera/v4l2_device.cpp\nindex 8f29cd7f..7fbca8b1 100644\n--- a/src/libcamera/v4l2_device.cpp\n+++ b/src/libcamera/v4l2_device.cpp\n@@ -10,6 +10,7 @@\n #include <fcntl.h>\n #include <iomanip>\n #include <limits.h>\n+#include <linux/intel-ipu3.h>\n #include <stdlib.h>\n #include <string.h>\n #include <sys/ioctl.h>\n@@ -459,6 +460,60 @@ int V4L2Device::ioctl(unsigned long request, void *argp)\n * \\return The device node path\n */\n \n+bool V4L2Device::createV4L2ControlInfoForMenu(const v4l2_query_ext_ctrl &ctrl,\n+\t\t\t\t\t V4L2ControlInfo &v4l2CtrlInfo)\n+{\n+\tASSERT(ctrl.type == V4L2_CTRL_TYPE_MENU ||\n+\t ctrl.type == V4L2_CTRL_TYPE_INTEGER_MENU);\n+\tbool isName = false;\n+\tswitch (ctrl.id) {\n+\tcase V4L2_CID_TEST_PATTERN:\n+\tcase V4L2_CID_INTEL_IPU3_MODE:\n+\t\tisName = true;\n+\t\tbreak;\n+\tcase V4L2_CID_LINK_FREQ:\n+\t\tisName = false;\n+\t\tbreak;\n+\tdefault:\n+\t\tLOG(V4L2, Error) << \"Unsupported menu: \" << ctrl.name\n+\t\t\t\t << \" (\" << utils::hex(ctrl.id) << \")\";\n+\t\treturn false;\n+\t}\n+\n+\tstd::vector<ControlValue> values;\n+\tv4l2_querymenu menu;\n+\tmemset(&menu, 0, sizeof(menu));\n+\tmenu.id = ctrl.id;\n+\tfor (menu.index = ctrl.minimum;\n+\t static_cast<int>(menu.index) <= ctrl.maximum; menu.index++) {\n+\t\tif (ioctl(VIDIOC_QUERYMENU, &menu) != 0)\n+\t\t\tcontinue;\n+\t\tControlMenu ctrlMenu;\n+\t\tctrlMenu.index = static_cast<int32_t>(menu.index);\n+\t\tctrlMenu.isName = isName;\n+\t\tif (isName) {\n+\t\t\tstrcpy(ctrlMenu.name,\n+\t\t\t reinterpret_cast<const char *>(menu.name));\n+\t\t} else {\n+\t\t\tctrlMenu.value = menu.value;\n+\t\t}\n+\n+\t\tvalues.push_back(ControlValue(ctrlMenu));\n+\t}\n+\n+\tif (values.empty()) {\n+\t\tLOG(V4L2, Error)\n+\t\t\t<< \"No applicable value: \" << utils::hex(ctrl.id);\n+\t\treturn false;\n+\t}\n+\n+\tv4l2CtrlInfo = V4L2ControlInfo(\n+\t\tControlInfo(libcamera::Span<const ControlValue>(\n+\t\t\tvalues.data(), values.size())));\n+\n+\treturn true;\n+}\n+\n /**\n * \\fn V4L2Device::fd()\n * \\brief Retrieve the V4L2 device file descriptor\n@@ -474,7 +529,6 @@ void V4L2Device::listControls()\n \tControlInfoMap::Map ctrls;\n \tstruct v4l2_query_ext_ctrl ctrl = {};\n \n-\t/* \\todo Add support for menu controls. */\n \twhile (1) {\n \t\tctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL |\n \t\t\t V4L2_CTRL_FLAG_NEXT_COMPOUND;\n@@ -485,15 +539,20 @@ void V4L2Device::listControls()\n \t\t ctrl.flags & V4L2_CTRL_FLAG_DISABLED)\n \t\t\tcontinue;\n \n+\t\tV4L2ControlInfo v4l2CtrlInfo(ControlInfo(0));\n \t\tswitch (ctrl.type) {\n \t\tcase V4L2_CTRL_TYPE_INTEGER:\n \t\tcase V4L2_CTRL_TYPE_BOOLEAN:\n-\t\tcase V4L2_CTRL_TYPE_MENU:\n \t\tcase V4L2_CTRL_TYPE_BUTTON:\n \t\tcase V4L2_CTRL_TYPE_INTEGER64:\n \t\tcase V4L2_CTRL_TYPE_BITMASK:\n-\t\tcase V4L2_CTRL_TYPE_INTEGER_MENU:\n \t\tcase V4L2_CTRL_TYPE_U8:\n+\t\t\tv4l2CtrlInfo = V4L2ControlInfo(ctrl);\n+\t\t\tbreak;\n+\t\tcase V4L2_CTRL_TYPE_MENU:\n+\t\tcase V4L2_CTRL_TYPE_INTEGER_MENU:\n+\t\t\tif (!createV4L2ControlInfoForMenu(ctrl, v4l2CtrlInfo))\n+\t\t\t\tcontinue;\n \t\t\tbreak;\n \t\t/* \\todo Support other control types. */\n \t\tdefault:\n@@ -503,10 +562,13 @@ void V4L2Device::listControls()\n \t\t\tcontinue;\n \t\t}\n \n+\t\tLOG(V4L2, Debug) << \"Control: \" << ctrl.name\n+\t\t\t\t << \" (\" << utils::hex(ctrl.id) << \")\";\n+\n \t\tcontrolIds_.emplace_back(std::make_unique<V4L2ControlId>(ctrl));\n \t\tcontrolInfo_.emplace(ctrl.id, ctrl);\n \n-\t\tctrls.emplace(controlIds_.back().get(), V4L2ControlInfo(ctrl));\n+\t\tctrls.emplace(controlIds_.back().get(), std::move(v4l2CtrlInfo));\n \t}\n \n \tcontrols_ = std::move(ctrls);\n@@ -539,7 +601,39 @@ void V4L2Device::updateControls(ControlList *ctrls,\n \t\tcase ControlTypeInteger64:\n \t\t\tnewValue.set<int64_t>(v4l2Ctrl.value64);\n \t\t\tbreak;\n-\n+\t\tcase ControlTypeMenu:\n+\t\t\tswitch (v4l2Ctrl.id) {\n+\t\t\tcase V4L2_CID_TEST_PATTERN: {\n+\t\t\t\tControlMenu menu;\n+\t\t\t\tmenu.index = v4l2Ctrl.value;\n+\t\t\t\tmenu.isName = true;\n+\n+\t\t\t\tbool found = false;\n+\t\t\t\tfor (const ControlValue &validValue : it->second.values()) {\n+\t\t\t\t\tconst auto &ctrlMenu = validValue.get<ControlMenu>();\n+\t\t\t\t\tif (!ctrlMenu.isName)\n+\t\t\t\t\t\tcontinue;\n+\t\t\t\t\tif (menu.index == ctrlMenu.index) {\n+\t\t\t\t\t\tstrcpy(menu.name, ctrlMenu.name);\n+\t\t\t\t\t\tfound = true;\n+\t\t\t\t\t\tbreak;\n+\t\t\t\t\t}\n+\t\t\t\t}\n+\n+\t\t\t\tif (!found) {\n+\t\t\t\t\tLOG(V4L2, Error)\n+\t\t\t\t\t\t<< \"Matched value is not found\"\n+\t\t\t\t\t\t<< \", index=\" << menu.index;\n+\t\t\t\t\tcontinue;\n+\t\t\t\t}\n+\n+\t\t\t\tnewValue.set<ControlMenu>(menu);\n+\t\t\t\tbreak;\n+\t\t\t}\n+\t\t\tdefault:\n+\t\t\t\tLOG(V4L2, Error) << \"Unknown id: \" << v4l2Ctrl.id;\n+\t\t\t\tbreak;\n+\t\t\t}\n \t\tcase ControlTypeByte:\n \t\t\t/*\n \t\t\t * No action required, the VIDIOC_[GS]_EXT_CTRLS ioctl\n", "prefixes": [ "libcamera-devel", "RFC", "v2", "2/5" ] }