scsi/ufs/ufs.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
4  * Copyright (C) 2011-2013 Samsung India Software Operations
21 #define QUERY_DESC_MIN_SIZE       2
22 #define QUERY_DESC_HDR_SIZE       2
23 #define QUERY_OSF_SIZE            (GENERAL_UPIU_REQUEST_SIZE - \
31  * UFS device may have standard LUs and LUN id could be from 0x00 to
33  * UFS device may also have the Well Known LUs (also referred as W-LU)
34  * which again could be from 0x00 to 0x7F. For W-LUs, device only use
35  * the "Extended Addressing Format" which means the W-LUNs would be
37  * This means max. LUN number reported from UFS device could be 0xC17F.
56  * UFS Protocol Information Unit related definitions
336 	UFSHCD_MILI_AMP		= 2,
367 	MASK_EE_URGENT_BKOPS	= (1 << 2),
396 	REF_CLK_FREQ_38_4_MHZ	= 2,
398 	REF_CLK_FREQ_INVAL	= -1,
454 /* UFS device power modes */
457 	UFS_SLEEP_PWR_MODE	= 2,
464  * struct utp_cmd_rsp - Response UPIU structure
465  * @residual_transfer_count: Residual transfer count DW-3
466  * @reserved: Reserved double words DW-4 to DW-7
467  * @sense_data_len: Sense data length DW-8 U16
468  * @sense_data: Sense data field DW-8 to DW-12
484  * struct utp_hpb_rsp - Response UPIU structure
485  * @residual_transfer_count: Residual transfer count DW-3
486  * @reserved1: Reserved double words DW-4 to DW-7
487  * @sense_data_len: Sense data length DW-8 U16
507 	struct ufshpb_active_field hpb_active_field[2];
508 	__be16 hpb_inactive_field[2];
513  * struct utp_upiu_rsp - general upiu response structure
514  * @header: UPIU header structure DW-0 to DW-2
515  * @sr: fields structure for scsi command DW-3 to DW-12
516  * @qr: fields structure for query request DW-3 to DW-7
528  * struct ufs_query_req - parameters for building a query request
538  * struct ufs_query_resp - UPIU QUERY
557  * VCCQ & VCCQ2 current requirement when UFS device is in sleep state
583 	/* Maximum number of general LU supported by the UFS device */
587 	/*UFS device Product Name */
596 	/* UFS HPB related flag */
602  * ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor
610 	if (!dev_info || !dev_info->max_lu_supported) {  in ufs_is_valid_unit_desc_lun()
611 		pr_err("Max General LU supported by UFS isn't initialized\n");  in ufs_is_valid_unit_desc_lun()
617 	return lun == UFS_UPIU_RPMB_WLUN || (lun < dev_info->max_lu_supported);  in ufs_is_valid_unit_desc_lun()