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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 | // SPDX-License-Identifier: GPL-2.0+ /* * Handling of common block commands * * Copyright (c) 2017 Google, Inc * * (C) Copyright 2000-2011 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. */ #include <common.h> #include <blk.h> #include <command.h> #include <mapmem.h> int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id, int *cur_devnump) { const char *if_name = blk_get_uclass_name(uclass_id); switch (argc) { case 0: case 1: return CMD_RET_USAGE; case 2: if (strncmp(argv[1], "inf", 3) == 0) { blk_list_devices(uclass_id); return CMD_RET_SUCCESS; } else if (strncmp(argv[1], "dev", 3) == 0) { if (blk_print_device_num(uclass_id, *cur_devnump)) { printf("\nno %s devices available\n", if_name); return CMD_RET_FAILURE; } return CMD_RET_SUCCESS; } else if (strncmp(argv[1], "part", 4) == 0) { if (blk_list_part(uclass_id)) printf("\nno %s partition table available\n", if_name); return CMD_RET_SUCCESS; } return CMD_RET_USAGE; case 3: if (strncmp(argv[1], "dev", 3) == 0) { int dev = (int)dectoul(argv[2], NULL); if (!blk_show_device(uclass_id, dev)) { *cur_devnump = dev; printf("... is now current device\n"); } else { return CMD_RET_FAILURE; } return CMD_RET_SUCCESS; } else if (strncmp(argv[1], "part", 4) == 0) { int dev = (int)dectoul(argv[2], NULL); if (blk_print_part_devnum(uclass_id, dev)) { printf("\n%s device %d not available\n", if_name, dev); return CMD_RET_FAILURE; } return CMD_RET_SUCCESS; } return CMD_RET_USAGE; default: /* at least 4 args */ if (strcmp(argv[1], "read") == 0) { phys_addr_t paddr = hextoul(argv[2], NULL); lbaint_t blk = hextoul(argv[3], NULL); ulong cnt = hextoul(argv[4], NULL); struct blk_desc *desc; void *vaddr; ulong n; int ret; printf("\n%s read: device %d block # "LBAFU", count %lu ... ", if_name, *cur_devnump, blk, cnt); ret = blk_get_desc(uclass_id, *cur_devnump, &desc); if (ret) return CMD_RET_FAILURE; vaddr = map_sysmem(paddr, desc->blksz * cnt); n = blk_dread(desc, blk, cnt, vaddr); unmap_sysmem(vaddr); printf("%ld blocks read: %s\n", n, n == cnt ? "OK" : "ERROR"); return n == cnt ? CMD_RET_SUCCESS : CMD_RET_FAILURE; } else if (strcmp(argv[1], "write") == 0) { phys_addr_t paddr = hextoul(argv[2], NULL); lbaint_t blk = hextoul(argv[3], NULL); ulong cnt = hextoul(argv[4], NULL); struct blk_desc *desc; void *vaddr; ulong n; int ret; printf("\n%s write: device %d block # "LBAFU", count %lu ... ", if_name, *cur_devnump, blk, cnt); ret = blk_get_desc(uclass_id, *cur_devnump, &desc); if (ret) return CMD_RET_FAILURE; vaddr = map_sysmem(paddr, desc->blksz * cnt); n = blk_dwrite(desc, blk, cnt, vaddr); unmap_sysmem(vaddr); printf("%ld blocks written: %s\n", n, n == cnt ? "OK" : "ERROR"); return n == cnt ? CMD_RET_SUCCESS : CMD_RET_FAILURE; } else { return CMD_RET_USAGE; } } } |