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@@ -0,0 +1,160 @@
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+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
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+/*
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+ * Copyright (c) 2021, The Linux Foundation. All rights reserved.
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+ */
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+
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+#ifndef __UAPI_CAM_CRE_H__
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+#define __UAPI_CAM_CRE_H__
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+
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+#include <media/cam_defs.h>
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+#include <media/cam_cpas.h>
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+
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+#define CAM_CRE_DEV_NAME_SIZE 128
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+
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+/* CRE HW TYPE */
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+#define CAM_CRE_HW_TYPE_CRE 0x1
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+#define CAM_CRE_HW_TYPE_MAX 0x2
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+
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+/* packet opcode types */
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+#define CAM_CRE_OPCODE_CONFIG 0x1
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+
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+/* input port resource type */
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+#define CAM_CRE_INPUT_IMAGE 0x1
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+#define CAM_CRE_INPUT_IMAGES_MAX (CAM_CRE_INPUT_IMAGE + 1)
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+
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+/* output port resource type */
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+#define CAM_CRE_OUTPUT_IMAGE 0x1
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+#define CAM_CRE_OUTPUT_IMAGES_MAX (CAM_CRE_OUTPUT_IMAGE + 1)
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+
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+/* definitions needed for cre aquire device */
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+#define CAM_CRE_DEV_TYPE_NRT 0x1
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+#define CAM_CRE_DEV_TYPE_RT 0x2
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+#define CAM_CRE_DEV_TYPE_MAX 0x3
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+
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+/* Clock blob */
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+#define CAM_CRE_CMD_GENERIC_BLOB_CLK 0x1
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+
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+#define CAM_CRE_MAX_PLANES 0x2
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+#define CRE_MAX_BATCH_SIZE 0x10
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+#define CAM_CRE_MAX_IO_BUFS 0x3
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+
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+#define CAM_CRE_ACQUIRE_FLAG_SECURE 0x1
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+
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+/**
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+ * struct cam_cre_io_buf_info - CRE IO buffers meta
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+ *
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+ * @direction: Direction of a buffer of a port(Input/Output)
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+ * @res_id: Resource ID
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+ * @num_planes: Number of planes
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+ * @width: Height of a plane buffer
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+ * @height: Height of a plane buffer
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+ * @stride: Plane stride
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+ * @packer_format: Format
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+ * @alignment: Alignment
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+ * @reserved: Reserved field 0
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+ * @reserved_1: Reserved field 1
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+ * @reserved_2: Reserved field 2
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+ *
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+ */
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+struct cam_cre_io_buf_info {
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+ __u32 direction;
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+ __u32 res_id;
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+ __u32 num_planes;
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+ __u32 width;
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+ __u32 height;
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+ __u32 stride;
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+ __u32 fence;
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+ __u32 packer_format;
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+ __u32 alignment;
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+ __u32 reserved;
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+ __u32 reserved_1;
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+ __u32 reserved_2;
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+};
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+
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+/**
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+ * struct cam_cre_hw_ver - Device information for particular hw type
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+ *
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+ * This is used to get device version info of CRE
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+ * from hardware and use this info in CAM_QUERY_CAP IOCTL
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+ *
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+ * @hw_type: Hardware type
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+ * @reserved: Reserved field
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+ * @hw_ver: Major, minor and incr values of a device version
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+ */
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+struct cam_cre_hw_ver {
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+ __u32 hw_type;
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+ __u32 reserved;
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+ struct cam_hw_version hw_ver;
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+};
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+
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+/**
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+ * struct cam_cre_query_cap_cmd - CRE query device capability payload
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+ *
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+ * @dev_iommu_handle: CRE iommu handles for secure/non secure modes
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+ * @num_dev: Number of cre
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+ * @reserved: Reserved field
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+ * @dev_ver: Returned device capability array
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+ */
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+struct cam_cre_query_cap_cmd {
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+ struct cam_iommu_handle dev_iommu_handle;
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+ __u32 num_dev;
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+ __u32 reserved;
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+ struct cam_cre_hw_ver dev_ver[CAM_CRE_HW_TYPE_MAX];
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+};
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+
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+/**
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+ * struct cam_cre_clk_bw_request
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+ *
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+ * @budget_ns: Time required to process frame
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+ * @frame_cycles: Frame cycles needed to process the frame
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+ * @rt_flag: Flag to indicate real time stream
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+ * @uncompressed_bw: Bandwidth required to process frame
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+ * @compressed_bw: Compressed bandwidth to process frame
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+ * @reserved: Reserved field 0
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+ * @reserved_1: Reserved field 1
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+ * @reserved_2: Reserved field 2
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+ * @num_path: Number of AXI Paths
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+ */
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+struct cam_cre_clk_bw_request {
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+ __u64 budget_ns;
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+ __u32 frame_cycles;
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+ __u32 rt_flag;
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+ __u64 uncompressed_bw;
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+ __u64 compressed_bw;
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+ __u32 num_paths;
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+ __u32 reserved;
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+ __u32 reserved_1;
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+ __u32 reserved_2;
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+ struct cam_axi_per_path_bw_vote axi_path[1];
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+};
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+
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+/**
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+ * struct cam_cre_acquire_dev_info - An CRE device info
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+ *
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+ * @dev_type: NRT/RT Acquire
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+ * @dev_name: Device name (CRE)
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+ * @acquire_flag: Tells if CRE will process the secure buff or not.
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+ * @batch_size: Batch size
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+ * @num_in_res: Number of In resources
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+ * @num_out_res: Number of Out resources
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+ * @reserved: Reserved field 0
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+ * @reserved_1: Reserved field 1
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+ * @reserved_2: Reserved field 2
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+ * @in_res: In resource info
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+ * @in_res: Out resource info
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+ */
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+struct cam_cre_acquire_dev_info {
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+ __u32 dev_type;
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+ char dev_name[CAM_CRE_DEV_NAME_SIZE];
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+ __u32 acquire_flag;
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+ __u32 batch_size;
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+ __u32 num_in_res;
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+ __u32 num_out_res;
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+ __u32 reserved;
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+ __u32 reserved_1;
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+ __u32 reserved_2;
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+ struct cam_cre_io_buf_info in_res[CAM_CRE_INPUT_IMAGES_MAX];
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+ struct cam_cre_io_buf_info out_res[CAM_CRE_OUTPUT_IMAGES_MAX];
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+}__attribute__((__packed__));
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+
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+#endif /* __UAPI_CAM_CRE_H__ */
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Vikram Sharma