c05564c4d8
Android 13
144 lines
4.4 KiB
C
Executable file
144 lines
4.4 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020 MediaTek Inc.
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*/
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#ifndef UFS_MTK_IOCTL_H__
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#define UFS_MTK_IOCTL_H__
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#include <linux/types.h>
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/*
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* IOCTL opcode for ufs ffu has the following opcode after
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* Following the last SCSI IOCTL opcode.
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*/
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#define UFS_IOCTL_QUERY 0x5388 /* Query descriptors, attr/flags */
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#define UFS_IOCTL_FFU 0x5389 /* Do firmware upgrade */
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#define UFS_IOCTL_GET_FW_VER 0x5390 /* Query production revision level */
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#define UFS_IOCTL_RPMB 0x5391 /* For RPMB access */
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#if defined(CONFIG_SCSI_UFS_FEATURE)
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#define UFSFEATURE_QUERY_OPCODE 0x5500
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#endif
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#define UFS_IOCTL_FFU_MAX_FW_SIZE_BYTES (512L * 1024)
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#define UFS_IOCTL_FFU_MAX_FW_VER_BYTES (4)
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#define UFS_IOCTL_FFU_MAX_FW_VER_STRING_DESCR_BYTES (10)
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struct ufs_ioctl_query_data {
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/*
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* User should select one of the opcode defined in "enum query_opcode".
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* Please check include/uapi/scsi/ufs/ufs.h for the definition of it.
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* Note that only UPIU_QUERY_OPCODE_READ_DESC,
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* UPIU_QUERY_OPCODE_READ_ATTR & UPIU_QUERY_OPCODE_READ_FLAG are
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* supported as of now. All other query_opcode would be considered
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* invalid.
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* As of now only read query operations are supported.
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*/
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__u32 opcode;
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/*
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* User should select one of the idn from "enum flag_idn" or "enum
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* attr_idn" or "enum desc_idn" based on whether opcode above is
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* attribute, flag or descriptor.
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* Please check include/uapi/scsi/ufs/ufs.h for the definition of it.
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*/
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__u8 idn;
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__u8 idx;
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/*
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* User should specify the size of the buffer (buffer[0] below) where
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* it wants to read the query data (attribute/flag/descriptor).
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* As we might end up reading less data then what is specified in
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* buf_size. So we are updating buf_size to what exactly we have read.
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*/
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__u16 buf_byte;
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/*
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* placeholder for the start of the data buffer where kernel will copy
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* the query data (attribute/flag/descriptor) read from the UFS device
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* Note:
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* For Read Attribute you will have to allocate 4 bytes
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* For Read Flag you will have to allocate 1 byte
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*/
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__u8 *buf_ptr;
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};
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struct ufs_ioctl_query_data_hpb {
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/*
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* User should select one of the opcode defined in "enum query_opcode".
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* Please check include/uapi/scsi/ufs/ufs.h for the definition of it.
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* Note that only UPIU_QUERY_OPCODE_READ_DESC,
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* UPIU_QUERY_OPCODE_READ_ATTR & UPIU_QUERY_OPCODE_READ_FLAG are
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* supported as of now. All other query_opcode would be considered
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* invalid.
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* As of now only read query operations are supported.
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*/
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__u32 opcode;
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/*
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* User should select one of the idn from "enum flag_idn" or "enum
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* attr_idn" or "enum desc_idn" based on whether opcode above is
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* attribute, flag or descriptor.
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* Please check include/uapi/scsi/ufs/ufs.h for the definition of it.
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*/
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__u8 idn;
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/*
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* User should specify the size of the buffer (buffer[0] below) where
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* it wants to read the query data (attribute/flag/descriptor).
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* As we might end up reading less data then what is specified in
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* buf_size. So we are updating buf_size to what exactly we have read.
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*/
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__u16 buf_size;
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/*
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* placeholder for the start of the data buffer where kernel will copy
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* the query data (attribute/flag/descriptor) read from the UFS device
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* Note:
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* For Read Attribute you will have to allocate 4 bytes
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* For Read Flag you will have to allocate 1 byte
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*/
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__u8 buffer[0];
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};
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/**
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* struct ufs_ioctl_ffu - used to transfer data to and from user via ioctl
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* @buf_size: number of allocated bytes/data size on return
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* @buf_ptr: data location
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*/
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struct ufs_ioctl_ffu_data {
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/*
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* User should specify the size of the buffer (buf_ptr below) where
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* it wants to transfer firmware image.
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*
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* Note: use __u32 here because FFU data may exceed 64 KB
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* (limit of __u16).
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*/
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__u32 buf_byte;
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/*
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* placeholder for the start address of the data buffer where kernel
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* will copy
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* the data.
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*/
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__u8 *buf_ptr;
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};
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/**
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* struct ufs_ioctl_ffu - used to transfer data to and from user via ioctl
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* @buf_size: number of allocated bytes/data size on return
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* @buf_ptr: data location
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*/
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struct ufs_ioctl_query_fw_ver_data {
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/*
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* User should specify the size of the buffer (buf_ptr below) where
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* it wants to read firmware version data.
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*/
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__u16 buf_byte;
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/*
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* placeholder for the start address of the data buffer where kernel
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* will copy
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* the data.
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*/
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__u8 *buf_ptr;
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};
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#endif /* UFS_MTK_IOCTL_H__ */
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