From patchwork Mon Dec 18 11:32:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dikshita Agarwal X-Patchwork-Id: 755551 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4AE1A199DB; Mon, 18 Dec 2023 11:36:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="ZFmnun9K" Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 3BIAsCGw032638; Mon, 18 Dec 2023 11:36:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references; s= qcppdkim1; bh=LX6X6WF6b2DnvVb0x9SqnHVvPQHNfSxl8FB6K8HP6sw=; b=ZF mnun9KydsAw/asYajUI0JUh42vUrjSf+0MHeYm6RTwMPXdlHC4x7gaVHerzb1KP4 fPSnnQ5cYhW3siUfRYddUSOwSP7IarEXLy4wsgqKKGKpxfuzt2j9JZdyRHnJjV2C qy1ZRRNWIRcwp6i7MFf9vL83N8fCyFhA4RATSx1hYTuNH4k1Oa42dkveDKsMwWzO zU0dHaNWvvYv6NYSQyW/xk0dWaKumFmo375ZtyfV7QLfZ0Uzq/+Wv8QUMNDNfUlx Q+Dr6aBVETfgFzEhbOdZjfyB7ktxnJkh+0oALHkWZaMVH77IA8CtpqcMKczhklt5 ngjdByKMM1+jYQDX89gQ== Received: from apblrppmta01.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3v14xy44cs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 18 Dec 2023 11:36:10 +0000 (GMT) Received: from pps.filterd (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 3BIBVmpM028250; Mon, 18 Dec 2023 11:36:07 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3v14ykyyhc-1; Mon, 18 Dec 2023 11:33:07 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3BIBX7XZ029998; Mon, 18 Dec 2023 11:33:07 GMT Received: from hu-sgudaval-hyd.qualcomm.com (hu-dikshita-hyd.qualcomm.com [10.213.110.13]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 3BIBX62X029968; Mon, 18 Dec 2023 11:33:07 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 347544) id 2E22822C6; Mon, 18 Dec 2023 17:03:04 +0530 (+0530) From: Dikshita Agarwal To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, stanimir.k.varbanov@gmail.com, quic_vgarodia@quicinc.com, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, mchehab@kernel.org, bryan.odonoghue@linaro.org Cc: linux-arm-msm@vger.kernel.org, quic_abhinavk@quicinc.com, Dikshita Agarwal Subject: [PATCH v2 06/34] media: iris: register video device to platform driver Date: Mon, 18 Dec 2023 17:02:01 +0530 Message-Id: <1702899149-21321-7-git-send-email-quic_dikshita@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1702899149-21321-1-git-send-email-quic_dikshita@quicinc.com> References: <1702899149-21321-1-git-send-email-quic_dikshita@quicinc.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: aYFzfkEloCRmcSdpA9dm31aQYrFM9uqY X-Proofpoint-ORIG-GUID: aYFzfkEloCRmcSdpA9dm31aQYrFM9uqY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 malwarescore=0 phishscore=0 priorityscore=1501 mlxscore=0 mlxlogscore=999 impostorscore=0 lowpriorityscore=0 suspectscore=0 spamscore=0 bulkscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312180083 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Iris is a multi pipe based video acceleration hardware block that offloads video stream encoding and decoding from the application processor (AP). It supports H.264 and H.265 encoding and decoding, as well as VP9 decoding. The AP communicates with hardware through a well defined protocol which provides fine-grained and asynchronous control over individual hardware features. This patch introduces basic probe and remove functions. It handles setting up a video device as well as registering it with the V4L2 subsystem. Signed-off-by: Dikshita Agarwal --- drivers/media/platform/qcom/Kconfig | 1 + drivers/media/platform/qcom/Makefile | 1 + drivers/media/platform/qcom/vcodec/iris/Kconfig | 13 +++ drivers/media/platform/qcom/vcodec/iris/Makefile | 3 + .../media/platform/qcom/vcodec/iris/iris_core.h | 34 +++++++ .../media/platform/qcom/vcodec/iris/iris_probe.c | 111 +++++++++++++++++++++ 6 files changed, 163 insertions(+) create mode 100644 drivers/media/platform/qcom/vcodec/iris/Kconfig create mode 100644 drivers/media/platform/qcom/vcodec/iris/Makefile create mode 100644 drivers/media/platform/qcom/vcodec/iris/iris_core.h create mode 100644 drivers/media/platform/qcom/vcodec/iris/iris_probe.c diff --git a/drivers/media/platform/qcom/Kconfig b/drivers/media/platform/qcom/Kconfig index e94142f..7c88837 100644 --- a/drivers/media/platform/qcom/Kconfig +++ b/drivers/media/platform/qcom/Kconfig @@ -4,3 +4,4 @@ comment "Qualcomm media platform drivers" source "drivers/media/platform/qcom/camss/Kconfig" source "drivers/media/platform/qcom/vcodec/venus/Kconfig" +source "drivers/media/platform/qcom/vcodec/iris/Kconfig" diff --git a/drivers/media/platform/qcom/Makefile b/drivers/media/platform/qcom/Makefile index 3d2d82b..3c76969 100644 --- a/drivers/media/platform/qcom/Makefile +++ b/drivers/media/platform/qcom/Makefile @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only obj-y += camss/ obj-y += vcodec/venus/ +obj-y += vcodec/iris/ diff --git a/drivers/media/platform/qcom/vcodec/iris/Kconfig b/drivers/media/platform/qcom/vcodec/iris/Kconfig new file mode 100644 index 0000000..850a5b4 --- /dev/null +++ b/drivers/media/platform/qcom/vcodec/iris/Kconfig @@ -0,0 +1,13 @@ +config VIDEO_QCOM_IRIS + tristate "Qualcomm Iris V4L2 encoder/decoder driver" + depends on VIDEO_DEV + depends on ARCH_QCOM + select QCOM_MDT_LOADER if ARCH_QCOM + select QCOM_SCM + select DMABUF_HEAPS + select DMABUF_HEAPS_SYSTEM + help + This is a V4L2 driver for Qualcomm Iris video accelerator + hardware. It accelerates encoding and decoding operations + on various Qualcomm SoCs. + To compile this driver as a module choose m here. diff --git a/drivers/media/platform/qcom/vcodec/iris/Makefile b/drivers/media/platform/qcom/vcodec/iris/Makefile new file mode 100644 index 0000000..5536ae0 --- /dev/null +++ b/drivers/media/platform/qcom/vcodec/iris/Makefile @@ -0,0 +1,3 @@ +iris-objs += iris_probe.o + +obj-$(CONFIG_VIDEO_QCOM_IRIS) += iris.o diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_core.h b/drivers/media/platform/qcom/vcodec/iris/iris_core.h new file mode 100644 index 0000000..ab7fcee --- /dev/null +++ b/drivers/media/platform/qcom/vcodec/iris/iris_core.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _IRIS_CORE_H_ +#define _IRIS_CORE_H_ + +#include +#include + +/** + * struct iris_core - holds core parameters valid for all instances + * + * @dev: reference to device structure + * @reg_base: IO memory base address + * @irq: iris irq + * @v4l2_dev: a holder for v4l2 device structure + * @vdev_dec: iris video device structure for decoder + * @v4l2_file_ops: iris v4l2 file ops + * @v4l2_ioctl_ops: iris v4l2 ioctl ops + */ + +struct iris_core { + struct device *dev; + void __iomem *reg_base; + int irq; + struct v4l2_device v4l2_dev; + struct video_device *vdev_dec; + const struct v4l2_file_operations *v4l2_file_ops; + const struct v4l2_ioctl_ops *v4l2_ioctl_ops; +}; + +#endif diff --git a/drivers/media/platform/qcom/vcodec/iris/iris_probe.c b/drivers/media/platform/qcom/vcodec/iris/iris_probe.c new file mode 100644 index 0000000..2e93118 --- /dev/null +++ b/drivers/media/platform/qcom/vcodec/iris/iris_probe.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include +#include +#include + +#include "iris_core.h" + +static int iris_register_video_device(struct iris_core *core) +{ + struct video_device *vdev; + int ret; + + vdev = video_device_alloc(); + if (!vdev) + return -ENOMEM; + + strscpy(vdev->name, "qcom-iris-decoder", sizeof(vdev->name)); + vdev->release = video_device_release; + vdev->fops = core->v4l2_file_ops; + vdev->ioctl_ops = core->v4l2_ioctl_ops; + vdev->vfl_dir = VFL_DIR_M2M; + vdev->v4l2_dev = &core->v4l2_dev; + vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; + + ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); + if (ret) + goto err_vdev_release; + + core->vdev_dec = vdev; + video_set_drvdata(vdev, core); + + return ret; + +err_vdev_release: + video_device_release(vdev); + + return ret; +} + +static void iris_remove(struct platform_device *pdev) +{ + struct iris_core *core; + + core = platform_get_drvdata(pdev); + if (!core) + return; + + video_unregister_device(core->vdev_dec); + + v4l2_device_unregister(&core->v4l2_dev); +} + +static int iris_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct iris_core *core; + int ret; + + core = devm_kzalloc(&pdev->dev, sizeof(*core), GFP_KERNEL); + if (!core) + return -ENOMEM; + core->dev = dev; + + core->reg_base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(core->reg_base)) + return PTR_ERR(core->reg_base); + + core->irq = platform_get_irq(pdev, 0); + if (core->irq < 0) + return core->irq; + + ret = v4l2_device_register(dev, &core->v4l2_dev); + if (ret) + return ret; + + ret = iris_register_video_device(core); + if (ret) + goto err_v4l2_unreg; + + platform_set_drvdata(pdev, core); + + return ret; + +err_v4l2_unreg: + v4l2_device_unregister(&core->v4l2_dev); + + return ret; +} + +static const struct of_device_id iris_dt_match[] = { + { .compatible = "qcom,sm8550-iris", }, + { }, +}; +MODULE_DEVICE_TABLE(of, iris_dt_match); + +static struct platform_driver qcom_iris_driver = { + .probe = iris_probe, + .remove_new = iris_remove, + .driver = { + .name = "qcom-iris", + .of_match_table = iris_dt_match, + }, +}; + +module_platform_driver(qcom_iris_driver); +MODULE_DESCRIPTION("Qualcomm Iris video driver"); +MODULE_LICENSE("GPL");