7049c53fc2
Implements stride alignment and stride validate IOCTL. Additional checks on stride value. Fixes spell error in ioctl interface. Change-Id: Ic4a41a12e2ffa8d45fd71938133accd069dff863 Signed-off-by: Amol Jadi <quic_ajadi@quicinc.com>
152 строки
3.4 KiB
C
152 строки
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
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/*
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* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef __UBWCP_IOCTL_H_
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#define __UBWCP_IOCTL_H_
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#define UBWCP_IOCTL_SET_BUF_ATTR _IOW('U', 1, struct ubwcp_ioctl_buffer_attrs)
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#define UBWCP_IOCTL_GET_HW_VER _IOR('U', 2, struct ubwcp_ioctl_hw_version)
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#define UBWCP_IOCTL_GET_STRIDE_ALIGN _IOWR('U', 3, struct ubwcp_ioctl_stride_align)
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#define UBWCP_IOCTL_VALIDATE_STRIDE _IOWR('U', 4, struct ubwcp_ioctl_validate_stride)
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enum ubwcp_image_format {
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UBWCP_LINEAR = 0,
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UBWCP_RGBA8888,
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UBWCP_NV12,
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UBWCP_NV12_Y,
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UBWCP_NV12_UV,
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UBWCP_NV124R,
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UBWCP_NV124R_Y,
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UBWCP_NV124R_UV,
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UBWCP_TP10,
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UBWCP_TP10_Y,
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UBWCP_TP10_UV,
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UBWCP_P010,
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UBWCP_P010_Y,
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UBWCP_P010_UV,
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UBWCP_P016,
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UBWCP_P016_Y,
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UBWCP_P016_UV,
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};
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enum ubwcp_compression_type {
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UBWCP_COMPRESSION_LOSSLESS = 0,
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};
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enum ubwcp_subsample {
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UBWCP_SUBSAMPLE_4_2_0 = 0,
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};
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#define UBWCP_SUBSYSTEM_TARGET_CPU (1 << 0)
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/**
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* @image_format: image format
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* @major_ubwc_ver: set to 0. This is not HW version.
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* @minor_ubwc_ver: set to 0. This is not HW version.
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* @compression_type: only lossless is supported.
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* @lossy_params: set to 0
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* @width: image width (pixels)
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* @height: image height (pixels)
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* @stride: image stride (bytes)
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* @scanlines: number of scanlines
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* @planar_padding: padding between Y and UV planes (bytes)
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* @subsample: only 4:2:0 is supported
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* @sub_system_target: only CPU is supported
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* @y_offset: set to 0
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* @batch_size: set to 1
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*
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* All pad[x] and unused[x] fields must be set to 0
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*/
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struct ubwcp_buffer_attrs {
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__u16 image_format; /* enum ubwcp_image_format */
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__u16 major_ubwc_ver; /* per-buffer version: must be set to 0 */
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__u16 minor_ubwc_ver; /* per-buffer version: must be set to 0 */
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__u16 compression_type; /* enum ubwcp_compression_type */
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__u64 lossy_params; /* must be set to 0 */
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__u32 width;
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__u32 height;
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__u32 stride;
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__u32 scanlines;
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__u32 planar_padding;
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__u32 subsample; /* enum enum ubwcp_subsample */
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__u32 sub_system_target;/* bit mask: UBWCP_SUBSYSTEM_TARGET_XXX */
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__u32 y_offset; /* must be set to 0 */
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__u32 batch_size; /* only size supported: 1 */
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__u32 unused1;
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__u32 unused2;
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__u32 unused3;
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__u32 unused4;
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__u32 unused5;
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__u32 unused6;
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__u32 unused7;
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__u32 unused8;
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__u32 unused9;
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};
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/**
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* @fd: dma_buf file descriptor for the buffer whose
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* attributes are specified
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* @attr: ubwcp buffer attributes
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*/
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struct ubwcp_ioctl_buffer_attrs {
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__u32 fd;
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__u32 pad;
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struct ubwcp_buffer_attrs attr;
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};
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/**
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* ubwcp hardware version
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* @major: major version
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* @minor: minor version
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*/
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struct ubwcp_ioctl_hw_version {
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__u32 major;
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__u32 minor;
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};
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/**
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* Stride alignment for given format
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* @image_format: image format
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* @stride_align: stride alignment
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* @unused: must be set to 0
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* IOCTL will fail for linear image format
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*/
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struct ubwcp_ioctl_stride_align {
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__u16 image_format;
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__u16 stride_align;
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__u32 unused;
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};
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/**
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* validate stride
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* @image_format: image format
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* @width: image width in pixels
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* @stride: image stride in bytes
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* @valid: returns 0 (not valid), 1 (valid)
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* @unusedX: must be set to 0
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* IOCTL will fail for linear image format
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*/
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struct ubwcp_ioctl_validate_stride {
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__u16 image_format;
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__u32 width;
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__u32 stride;
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__u16 valid;
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__u16 unused1;
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__u16 unused2;
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};
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#endif /* __UBWCP_IOCTL_H_ */
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