From patchwork Wed Jun 24 14:52:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Elder X-Patchwork-Id: 8408 Return-Path: Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 62436609A9 for ; Wed, 24 Jun 2020 16:53:40 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="TexvYPbd"; dkim-atps=neutral Received: from jade.rasen.tech (unknown [IPv6:2400:4051:61:600:8147:f2a2:a8c6:9087]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 4E8512A8; Wed, 24 Jun 2020 16:53:38 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1593010420; bh=iFElNjVQnZTQQnfU+8yxLeFarVTA5fdGEmgGife8r2U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TexvYPbdyEfJNYN8VPj8HRp9yqqVcG8itLXGVjF2l55V8VydxfP3R3Dbg/bbuSkCs YZTh/LpA01p6s174WI6jFb75ee7Vsu8xmfqYHDvOOs3re81SLN2BcO1bmggz8HOnw4 oCFDJ4DXn9htNqBBYCPd435fMBJrn7KWX9rhrFUI= From: Paul Elder To: libcamera-devel@lists.libcamera.org Date: Wed, 24 Jun 2020 23:52:44 +0900 Message-Id: <20200624145256.48266-11-paul.elder@ideasonboard.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200624145256.48266-1-paul.elder@ideasonboard.com> References: <20200624145256.48266-1-paul.elder@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v4 10/22] v4l2: v4l2_camera_proxy: Implement VIDIOC_ENUMINPUT, VIDIOC_G/S_INPUT X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Jun 2020 14:53:40 -0000 Implement VIDIOC_ENUMINPUT, VIDIOC_G_INPUT, and VIDIOC_S_INPUT. Only the zeroth input device is supported, and the info returned by enuminput is hardcoded and basic. This is sufficient to pass v4l2-compliance. Signed-off-by: Paul Elder Reviewed-by: Jacopo Mondi Reviewed-by: Laurent Pinchart --- No change in v4 Changes in v3: - cosmetic changes Changes in v2: - use V4L2CameraFile instead of fd - remove arg == nullptr check as it has been moved away to the main ioctl handler --- src/v4l2/v4l2_camera_proxy.cpp | 48 ++++++++++++++++++++++++++++++++++ src/v4l2/v4l2_camera_proxy.h | 3 +++ 2 files changed, 51 insertions(+) diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp index 99586c3..2bbe821 100644 --- a/src/v4l2/v4l2_camera_proxy.cpp +++ b/src/v4l2/v4l2_camera_proxy.cpp @@ -383,6 +383,42 @@ int V4L2CameraProxy::vidioc_s_priority(V4L2CameraFile *file, enum v4l2_priority return 0; } +int V4L2CameraProxy::vidioc_enuminput(V4L2CameraFile *file, struct v4l2_input *arg) +{ + LOG(V4L2Compat, Debug) << "Servicing vidioc_enuminput fd = " << file->efd(); + + if (arg->index != 0) + return -EINVAL; + + memset(arg, 0, sizeof(*arg)); + + utils::strlcpy(reinterpret_cast(arg->name), + reinterpret_cast(capabilities_.card), + sizeof(arg->name)); + arg->type = V4L2_INPUT_TYPE_CAMERA; + + return 0; +} + +int V4L2CameraProxy::vidioc_g_input(V4L2CameraFile *file, int *arg) +{ + LOG(V4L2Compat, Debug) << "Servicing vidioc_g_input fd = " << file->efd(); + + *arg = 0; + + return 0; +} + +int V4L2CameraProxy::vidioc_s_input(V4L2CameraFile *file, int *arg) +{ + LOG(V4L2Compat, Debug) << "Servicing vidioc_s_input fd = " << file->efd(); + + if (*arg != 0) + return -EINVAL; + + return 0; +} + void V4L2CameraProxy::freeBuffers() { LOG(V4L2Compat, Debug) << "Freeing libcamera bufs"; @@ -598,6 +634,9 @@ const std::set V4L2CameraProxy::supportedIoctls_ = { VIDIOC_TRY_FMT, VIDIOC_G_PRIORITY, VIDIOC_S_PRIORITY, + VIDIOC_ENUMINPUT, + VIDIOC_G_INPUT, + VIDIOC_S_INPUT, VIDIOC_REQBUFS, VIDIOC_QUERYBUF, VIDIOC_QBUF, @@ -646,6 +685,15 @@ int V4L2CameraProxy::ioctl(V4L2CameraFile *file, unsigned long request, void *ar case VIDIOC_S_PRIORITY: ret = vidioc_s_priority(file, static_cast(arg)); break; + case VIDIOC_ENUMINPUT: + ret = vidioc_enuminput(file, static_cast(arg)); + break; + case VIDIOC_G_INPUT: + ret = vidioc_g_input(file, static_cast(arg)); + break; + case VIDIOC_S_INPUT: + ret = vidioc_s_input(file, static_cast(arg)); + break; case VIDIOC_REQBUFS: ret = vidioc_reqbufs(file, static_cast(arg)); break; diff --git a/src/v4l2/v4l2_camera_proxy.h b/src/v4l2/v4l2_camera_proxy.h index 8de306b..707a0de 100644 --- a/src/v4l2/v4l2_camera_proxy.h +++ b/src/v4l2/v4l2_camera_proxy.h @@ -54,6 +54,9 @@ private: int vidioc_try_fmt(V4L2CameraFile *file, struct v4l2_format *arg); int vidioc_g_priority(V4L2CameraFile *file, enum v4l2_priority *arg); int vidioc_s_priority(V4L2CameraFile *file, enum v4l2_priority *arg); + int vidioc_enuminput(V4L2CameraFile *file, struct v4l2_input *arg); + int vidioc_g_input(V4L2CameraFile *file, int *arg); + int vidioc_s_input(V4L2CameraFile *file, int *arg); int vidioc_reqbufs(V4L2CameraFile *file, struct v4l2_requestbuffers *arg); int vidioc_querybuf(V4L2CameraFile *file, struct v4l2_buffer *arg); int vidioc_qbuf(V4L2CameraFile *file, struct v4l2_buffer *arg);