LXR uboot/cmd/blk

   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#include <command.h>
  14
  15int 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 partition table available\n",
  37                                       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)dectoul(argv[2], NULL);
  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)dectoul(argv[2], NULL);
  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 = hextoul(argv[2], NULL);
  67                        lbaint_t blk = hextoul(argv[3], NULL);
  68                        ulong cnt = hextoul(argv[4], NULL);
  69                        ulong n;
  70
  71                        printf("\n%s read: device %d block # "LBAFU", count %lu ... ",
  72                               if_name, *cur_devnump, blk, cnt);
  73
  74                        n = blk_read_devnum(if_type, *cur_devnump, blk, cnt,
  75                                            (ulong *)addr);
  76
  77                        printf("%ld blocks read: %s\n", n,
  78                               n == cnt ? "OK" : "ERROR");
  79                        return n == cnt ? 0 : 1;
  80                } else if (strcmp(argv[1], "write") == 0) {
  81                        ulong addr = hextoul(argv[2], NULL);
  82                        lbaint_t blk = hextoul(argv[3], NULL);
  83                        ulong cnt = hextoul(argv[4], NULL);
  84                        ulong n;
  85
  86                        printf("\n%s write: device %d block # "LBAFU", count %lu ... ",
  87                               if_name, *cur_devnump, blk, cnt);
  88
  89                        n = blk_write_devnum(if_type, *cur_devnump, blk, cnt,
  90                                             (ulong *)addr);
  91
  92                        printf("%ld blocks written: %s\n", n,
  93                               n == cnt ? "OK" : "ERROR");
  94                        return n == cnt ? 0 : 1;
  95                } else {
  96                        return CMD_RET_USAGE;
  97                }
  98        }
  99}
 100