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