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