1 /* 2 * (C) Copyright 2000-2004 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef BLK_H 9 #define BLK_H 10 11 #ifdef CONFIG_SYS_64BIT_LBA 12 typedef uint64_t lbaint_t; 13 #define LBAFlength "ll" 14 #else 15 typedef ulong lbaint_t; 16 #define LBAFlength "l" 17 #endif 18 #define LBAF "%" LBAFlength "x" 19 #define LBAFU "%" LBAFlength "u" 20 21 /* Interface types: */ 22 enum if_type { 23 IF_TYPE_UNKNOWN = 0, 24 IF_TYPE_IDE, 25 IF_TYPE_SCSI, 26 IF_TYPE_ATAPI, 27 IF_TYPE_USB, 28 IF_TYPE_DOC, 29 IF_TYPE_MMC, 30 IF_TYPE_SD, 31 IF_TYPE_SATA, 32 IF_TYPE_HOST, 33 34 IF_TYPE_COUNT, /* Number of interface types */ 35 }; 36 37 struct blk_desc { 38 enum if_type if_type; /* type of the interface */ 39 int dev; /* device number */ 40 unsigned char part_type; /* partition type */ 41 unsigned char target; /* target SCSI ID */ 42 unsigned char lun; /* target LUN */ 43 unsigned char hwpart; /* HW partition, e.g. for eMMC */ 44 unsigned char type; /* device type */ 45 unsigned char removable; /* removable device */ 46 #ifdef CONFIG_LBA48 47 /* device can use 48bit addr (ATA/ATAPI v7) */ 48 unsigned char lba48; 49 #endif 50 lbaint_t lba; /* number of blocks */ 51 unsigned long blksz; /* block size */ 52 int log2blksz; /* for convenience: log2(blksz) */ 53 char vendor[40+1]; /* IDE model, SCSI Vendor */ 54 char product[20+1]; /* IDE Serial no, SCSI product */ 55 char revision[8+1]; /* firmware revision */ 56 unsigned long (*block_read)(struct blk_desc *block_dev, 57 lbaint_t start, 58 lbaint_t blkcnt, 59 void *buffer); 60 unsigned long (*block_write)(struct blk_desc *block_dev, 61 lbaint_t start, 62 lbaint_t blkcnt, 63 const void *buffer); 64 unsigned long (*block_erase)(struct blk_desc *block_dev, 65 lbaint_t start, 66 lbaint_t blkcnt); 67 void *priv; /* driver private struct pointer */ 68 }; 69 70 #define BLOCK_CNT(size, blk_desc) (PAD_COUNT(size, blk_desc->blksz)) 71 #define PAD_TO_BLOCKSIZE(size, blk_desc) \ 72 (PAD_SIZE(size, blk_desc->blksz)) 73 74 #endif 75