// 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> #ifdef CONFIG_HAVE_BLOCK_DEVICE int blk_common_cmd(int argc, char * const argv[], enum if_type if_type, int *cur_devnump) { const char *if_name = blk_get_if_type_name(if_type); switch (argc) { case 0: case 1: return CMD_RET_USAGE; case 2: if (strncmp(argv[1], "inf", 3) == 0) { blk_list_devices(if_type); return 0; } else if (strncmp(argv[1], "dev", 3) == 0) { if (blk_print_device_num(if_type, *cur_devnump)) { printf("\nno %s devices available\n", if_name); return CMD_RET_FAILURE; } return 0; } else if (strncmp(argv[1], "part", 4) == 0) { if (blk_list_part(if_type)) printf("\nno %s devices available\n", if_name); return 0; } return CMD_RET_USAGE; case 3: if (strncmp(argv[1], "dev", 3) == 0) { int dev = (int)simple_strtoul(argv[2], NULL, 10); if (!blk_show_device(if_type, dev)) { *cur_devnump = dev; printf("... is now current device\n"); } else { return CMD_RET_FAILURE; } return 0; } else if (strncmp(argv[1], "part", 4) == 0) { int dev = (int)simple_strtoul(argv[2], NULL, 10); if (blk_print_part_devnum(if_type, dev)) { printf("\n%s device %d not available\n", if_name, dev); return CMD_RET_FAILURE; } return 0; } return CMD_RET_USAGE; default: /* at least 4 args */ if (strcmp(argv[1], "read") == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); lbaint_t blk = simple_strtoul(argv[3], NULL, 16); ulong cnt = simple_strtoul(argv[4], NULL, 16); ulong n; printf("\n%s read: device %d block # "LBAFU", count %lu ... ", if_name, *cur_devnump, blk, cnt); n = blk_read_devnum(if_type, *cur_devnump, blk, cnt, (ulong *)addr); printf("%ld blocks read: %s\n", n, n == cnt ? "OK" : "ERROR"); return n == cnt ? 0 : 1; } else if (strcmp(argv[1], "write") == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); lbaint_t blk = simple_strtoul(argv[3], NULL, 16); ulong cnt = simple_strtoul(argv[4], NULL, 16); ulong n; printf("\n%s write: device %d block # "LBAFU", count %lu ... ", if_name, *cur_devnump, blk, cnt); n = blk_write_devnum(if_type, *cur_devnump, blk, cnt, (ulong *)addr); printf("%ld blocks written: %s\n", n, n == cnt ? "OK" : "ERROR"); return n == cnt ? 0 : 1; } else { return CMD_RET_USAGE; } } } #endif