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client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by SJ5PEPF000001D3.mail.protection.outlook.com (10.167.242.55) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8835.15 via Frontend Transport; Sun, 8 Jun 2025 14:49:41 +0000 Received: from 555e2b870847.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Sun, 8 Jun 2025 09:49:36 -0500 From: Bin Du To: , , , , , , , CC: , , , , , , , , "Bin Du" Subject: [PATCH v1 1/9] media: platform: amd: Introduce amd isp4 capture driver Date: Sun, 8 Jun 2025 22:49:08 +0800 Message-ID: <20250608144916.222835-2-Bin.Du@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250608144916.222835-1-Bin.Du@amd.com> References: <20250608144916.222835-1-Bin.Du@amd.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF000001D3:EE_|MW4PR12MB6923:EE_ X-MS-Office365-Filtering-Correlation-Id: e2912efc-be77-42b9-9f1c-08dda69bb35b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(1800799024)(36860700013)(82310400026)(376014); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Jun 2025 14:49:41.4488 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e2912efc-be77-42b9-9f1c-08dda69bb35b X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF000001D3.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB6923 Amd isp4 capture is a v4l2 media device which implements media controller interface. It has one sub-device (amd ISP4 sub-device) endpoint which can be connected to a remote CSI2 TX endpoint. It supports only one physical interface for now. Signed-off-by: Bin Du Signed-off-by: Svetoslav Stoilov Change-Id: I1a55f348db6a307797349203640132675aafbc0a --- drivers/media/platform/Kconfig | 1 + drivers/media/platform/Makefile | 1 + drivers/media/platform/amd/Kconfig | 15 +++ drivers/media/platform/amd/Makefile | 5 + drivers/media/platform/amd/isp4/Makefile | 16 +++ drivers/media/platform/amd/isp4/isp4.c | 139 +++++++++++++++++++++++ drivers/media/platform/amd/isp4/isp4.h | 35 ++++++ 7 files changed, 212 insertions(+) create mode 100644 drivers/media/platform/amd/Kconfig create mode 100644 drivers/media/platform/amd/Makefile create mode 100644 drivers/media/platform/amd/isp4/Makefile create mode 100644 drivers/media/platform/amd/isp4/isp4.c create mode 100644 drivers/media/platform/amd/isp4/isp4.h diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index 85d2627776b6..d525c2262a7d 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -89,5 +89,6 @@ source "drivers/media/platform/ti/Kconfig" source "drivers/media/platform/verisilicon/Kconfig" source "drivers/media/platform/via/Kconfig" source "drivers/media/platform/xilinx/Kconfig" +source "drivers/media/platform/amd/Kconfig" endif # MEDIA_PLATFORM_DRIVERS diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile index ace4e34483dd..9f3d1693868d 100644 --- a/drivers/media/platform/Makefile +++ b/drivers/media/platform/Makefile @@ -32,6 +32,7 @@ obj-y += ti/ obj-y += verisilicon/ obj-y += via/ obj-y += xilinx/ +obj-y += amd/ # Please place here only ancillary drivers that aren't SoC-specific # Please keep it alphabetically sorted by Kconfig name diff --git a/drivers/media/platform/amd/Kconfig b/drivers/media/platform/amd/Kconfig new file mode 100644 index 000000000000..361b3d687529 --- /dev/null +++ b/drivers/media/platform/amd/Kconfig @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: MIT + +config AMD_ISP4 + tristate "AMD ISP4 and camera driver" + default y + depends on VIDEO_DEV && VIDEO_V4L2_SUBDEV_API + select VIDEOBUF2_CORE + select VIDEOBUF2_V4L2 + select VIDEOBUF2_MEMOPS + select VIDEOBUF2_VMALLOC + select VIDEOBUF2_DMA_CONTIG + select VIDEOBUF2_DMA_SG + help + This is support for AMD ISP4 and camera subsystem driver. + Say Y here to enable the ISP4 and camera device for video capture. diff --git a/drivers/media/platform/amd/Makefile b/drivers/media/platform/amd/Makefile new file mode 100644 index 000000000000..76146efcd2bf --- /dev/null +++ b/drivers/media/platform/amd/Makefile @@ -0,0 +1,5 @@ +# Copyright 2024 Advanced Micro Devices, Inc. +# add isp block +ifneq ($(CONFIG_AMD_ISP4),) +obj-y += isp4/ +endif diff --git a/drivers/media/platform/amd/isp4/Makefile b/drivers/media/platform/amd/isp4/Makefile new file mode 100644 index 000000000000..f2ac9b2a95f0 --- /dev/null +++ b/drivers/media/platform/amd/isp4/Makefile @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2025 Advanced Micro Devices, Inc. + +obj-$(CONFIG_AMD_ISP4) += amd_capture.o +amd_capture-objs := isp4.o + +ccflags-y += -I$(srctree)/drivers/media/platform/amd/isp4 +ccflags-y += -I$(srctree)/include + +ifneq ($(call cc-option, -mpreferred-stack-boundary=4),) + cc_stack_align := -mpreferred-stack-boundary=4 +endif + +ccflags-y += $(cc_stack_align) +ccflags-y += -DCONFIG_COMPAT diff --git a/drivers/media/platform/amd/isp4/isp4.c b/drivers/media/platform/amd/isp4/isp4.c new file mode 100644 index 000000000000..d0be90c5ec3b --- /dev/null +++ b/drivers/media/platform/amd/isp4/isp4.c @@ -0,0 +1,139 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2025 Advanced Micro Devices, Inc. + */ + +#include +#include +#include + +#include "isp4.h" + +#define VIDEO_BUF_NUM 5 + +#define ISP4_DRV_NAME "amd_isp_capture" + +/* interrupt num */ +static const u32 isp4_ringbuf_interrupt_num[] = { + 0, /* ISP_4_1__SRCID__ISP_RINGBUFFER_WPT9 */ + 1, /* ISP_4_1__SRCID__ISP_RINGBUFFER_WPT10 */ + 3, /* ISP_4_1__SRCID__ISP_RINGBUFFER_WPT11 */ + 4, /* ISP_4_1__SRCID__ISP_RINGBUFFER_WPT12 */ +}; + +#define to_isp4_device(dev) \ + ((struct isp4_device *)container_of(dev, struct isp4_device, v4l2_dev)) + +static irqreturn_t isp4_irq_handler(int irq, void *arg) +{ + struct isp4_device *isp_dev = dev_get_drvdata((struct device *)arg); + + if (!isp_dev) + goto error_drv_data; + +error_drv_data: + return IRQ_HANDLED; +} + +/* + * amd capture module + */ +static int isp4_capture_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct isp4_device *isp_dev; + + int i, irq, ret; + + isp_dev = devm_kzalloc(&pdev->dev, sizeof(*isp_dev), GFP_KERNEL); + if (!isp_dev) + return -ENOMEM; + + isp_dev->pdev = pdev; + dev->init_name = ISP4_DRV_NAME; + + for (i = 0; i < ARRAY_SIZE(isp4_ringbuf_interrupt_num); i++) { + irq = platform_get_irq(pdev, isp4_ringbuf_interrupt_num[i]); + if (irq < 0) + return dev_err_probe(dev, -ENODEV, + "fail to get irq %d\n", + isp4_ringbuf_interrupt_num[i]); + ret = devm_request_irq(&pdev->dev, irq, isp4_irq_handler, 0, + "ISP_IRQ", &pdev->dev); + if (ret) + return dev_err_probe(dev, ret, "fail to req irq %d\n", + irq); + } + + isp_dev->pltf_data = pdev->dev.platform_data; + + dev_dbg(dev, "isp irq registration successful\n"); + + /* Link the media device within the v4l2_device */ + isp_dev->v4l2_dev.mdev = &isp_dev->mdev; + + /* Initialize media device */ + strscpy(isp_dev->mdev.model, "amd_isp41_mdev", + sizeof(isp_dev->mdev.model)); + snprintf(isp_dev->mdev.bus_info, sizeof(isp_dev->mdev.bus_info), + "platform:%s", ISP4_DRV_NAME); + isp_dev->mdev.dev = &pdev->dev; + media_device_init(&isp_dev->mdev); + + /* register v4l2 device */ + snprintf(isp_dev->v4l2_dev.name, sizeof(isp_dev->v4l2_dev.name), + "AMD-V4L2-ROOT"); + ret = v4l2_device_register(&pdev->dev, &isp_dev->v4l2_dev); + if (ret) + return dev_err_probe(dev, ret, + "fail register v4l2 device\n"); + + dev_dbg(dev, "AMD ISP v4l2 device registered\n"); + + ret = media_device_register(&isp_dev->mdev); + if (ret) { + dev_err(dev, "fail to register media device %d\n", ret); + goto err_unreg_v4l2; + } + + platform_set_drvdata(pdev, isp_dev); + + pm_runtime_set_suspended(dev); + pm_runtime_enable(dev); + + return 0; + +err_unreg_v4l2: + v4l2_device_unregister(&isp_dev->v4l2_dev); + + return dev_err_probe(dev, ret, "isp probe fail\n"); +} + +static void isp4_capture_remove(struct platform_device *pdev) +{ + struct isp4_device *isp_dev = platform_get_drvdata(pdev); + struct device *dev = &pdev->dev; + + media_device_unregister(&isp_dev->mdev); + v4l2_device_unregister(&isp_dev->v4l2_dev); + dev_dbg(dev, "AMD ISP v4l2 device unregistered\n"); +} + +static struct platform_driver isp4_capture_drv = { + .probe = isp4_capture_probe, + .remove = isp4_capture_remove, + .driver = { + .name = ISP4_DRV_NAME, + .owner = THIS_MODULE, + } +}; + +module_platform_driver(isp4_capture_drv); + +MODULE_ALIAS("platform:" ISP4_DRV_NAME); +MODULE_IMPORT_NS("DMA_BUF"); + +MODULE_DESCRIPTION("AMD ISP4 Driver"); +MODULE_AUTHOR("Bin Du "); +MODULE_AUTHOR("Pratap Nirujogi "); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/amd/isp4/isp4.h b/drivers/media/platform/amd/isp4/isp4.h new file mode 100644 index 000000000000..27a7362ce6f9 --- /dev/null +++ b/drivers/media/platform/amd/isp4/isp4.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2025 Advanced Micro Devices, Inc. + */ + +#ifndef _ISP4_H_ +#define _ISP4_H_ + +#include +#include +#include +#include + +#define ISP4_GET_ISP_REG_BASE(isp4sd) (((isp4sd))->mmio) + +struct isp4_platform_data { + void *adev; + void *bo; + void *cpu_ptr; + u64 gpu_addr; + u32 size; + u32 asic_type; + resource_size_t base_rmmio_size; +}; + +struct isp4_device { + struct v4l2_device v4l2_dev; + struct media_device mdev; + + struct isp4_platform_data *pltf_data; + struct platform_device *pdev; + struct notifier_block i2c_nb; +}; + +#endif /* isp4.h */