85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* Copyright 2021 Google LLC.
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*
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* Author: Vinay Kalia <vinaykalia@google.com>
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*/
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#ifndef _BIGO_H_
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#define _BIGO_H_
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#include <linux/ioctl.h>
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#include <linux/types.h>
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/*
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* Structures as parameters for BigOcean commands. It should be passed
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* into ioctl() as the third parameter.
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*
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* The usage and meaning of each field is documented in command
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* identifiers.
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*/
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struct bigo_ioc_regs {
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__u64 regs;
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__u32 regs_size;
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};
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struct bigo_ioc_mapping {
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int fd;
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__u32 iova;
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__u32 offset;
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__u32 size;
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};
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struct bigo_ioc_frmsize {
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__u32 height;
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__u32 width;
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};
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struct bigo_cache_info {
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__u32 size;
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__u32 pid;
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};
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/*
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* Helpers for defining command identifiers. User space should not
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* use these macros directly.
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*
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* <START OF HELPERS>
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*/
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#define BIGO_IOC_MAGIC 'B'
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#define _BIGO_IO(nr) _IO(BIGO_IOC_MAGIC, nr)
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#define _BIGO_IOR(nr, size) _IOR(BIGO_IOC_MAGIC, nr, size)
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#define _BIGO_IOW(nr, size) _IOW(BIGO_IOC_MAGIC, nr, size)
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#define _BIGO_IOWR(nr, size) _IOWR(BIGO_IOC_MAGIC, nr, size)
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enum bigo_cmd_id {
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BIGO_CMD_PROCESS,
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BIGO_CMD_ABORT,
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BIGO_CMD_MAP,
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BIGO_CMD_UNMAP,
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BIGO_CMD_CONFIG_FRMRATE,
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BIGO_CMD_CONFIG_FRMSIZE,
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BIGO_CMD_GET_CACHE_INFO,
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BIGO_CMD_CONFIG_SECURE,
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BIGO_CMD_CONFIG_PRIORITY,
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BIGO_CMD_MAXNR,
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};
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/* <END OF HELPERS> */
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#define BIGO_IOCX_PROCESS _BIGO_IOWR(BIGO_CMD_PROCESS, struct bigo_ioc_regs)
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#define BIGO_IOCX_MAP _BIGO_IOWR(BIGO_CMD_MAP, struct bigo_ioc_mapping)
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#define BIGO_IOCX_UNMAP _BIGO_IOW(BIGO_CMD_UNMAP, struct bigo_ioc_mapping)
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#define BIGO_IOCX_CONFIG_FRMRATE _BIGO_IOW(BIGO_CMD_CONFIG_FRMRATE, __u32)
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#define BIGO_IOCX_CONFIG_FRMSIZE \
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_BIGO_IOW(BIGO_CMD_CONFIG_FRMSIZE, struct bigo_ioc_frmsize)
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#define BIGO_IOCX_GET_CACHE_INFO \
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_BIGO_IOR(BIGO_CMD_GET_CACHE_INFO, struct bigo_cache_info)
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#define BIGO_IOCX_ABORT _BIGO_IO(BIGO_CMD_ABORT)
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#define BIGO_IOCX_CONFIG_SECURE _BIGO_IOW(BIGO_CMD_CONFIG_SECURE, __u32)
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#define BIGO_IOCX_CONFIG_PRIORITY _BIGO_IOW(BIGO_CMD_CONFIG_PRIORITY, __s32)
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#endif /* _BIGO_H_ */
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