63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
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#ifndef UAPI_SCSI_UFS_UFS_IOCTL_H_
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#define UAPI_SCSI_UFS_UFS_IOCTL_H_
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#include <linux/types.h>
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/*
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* IOCTL opcode for ufs combo queries has the following opcode after
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* SCSI_IOCTL_GET_PCI
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*/
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#define UFS_IOCTL_COMBO_QUERY 0x5388
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/*
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* IOCTL opcode to set UFS power mode
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*/
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#define UFS_IOCTL_SET_POWER_MODE 0x5389
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/*
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* Maximum number of Query requests per Combo Query Request
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*/
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#define MAX_QUERY_CMD_PER_COMBO 10
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/**
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* struct ufs_ioc_query_cmd - used to transfer ufs query command/data to and
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* from user via ioctl
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*/
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struct ufs_ioc_query_req {
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/* Query opcode to specify the type of Query operation */
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__u8 opcode;
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/* idn to provide more info on specific operation. */
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__u8 idn;
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/* index - optional in some cases */
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__u8 index;
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/* index - optional in some cases */
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__u8 selector;
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/* buf_size - buffer size in bytes pointed by buffer. */
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__u16 buf_size;
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/*
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* user buffer pointer for query data.
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* Note:
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* For Read/Write Attribute this should be of 4 bytes
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* For Read Flag this should be of 1 byte
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* For Descriptor Read/Write size depends on the type of the descriptor
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*/
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__u8 *buffer;
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/* delay after query command completion */
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__u32 delay;
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/* error status for the query operation */
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__s32 error_status;
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};
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struct ufs_ioc_combo_query_req {
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/* Number of Query Commands in this Combo */
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__u8 num_cmds;
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/* Flag to Specify if Command Queue need to be empty or not */
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__u8 need_cq_empty;
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/* Flag to Specify if return or continue with all requests on error */
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__u8 return_on_error;
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/* pointer to the first query command request */
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struct ufs_ioc_query_req *query;
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};
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#endif /* UAPI_SCSI_UFS_UFS_IOCTL_H_ */
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