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#include <mapmem.h>
  15
  16int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id,
  17                   int *cur_devnump)
  18{
  19        const char *if_name = blk_get_uclass_name(uclass_id);
  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(uclass_id);
  28                        return 0;
  29                } else if (strncmp(argv[1], "dev", 3) == 0) {
  30                        if (blk_print_device_num(uclass_id, *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(uclass_id))
  37                                printf("\nno %s partition table available\n",
  38                                       if_name);
  39                        return 0;
  40                }
  41                return CMD_RET_USAGE;
  42        case 3:
  43                if (strncmp(argv[1], "dev", 3) == 0) {
  44                        int dev = (int)dectoul(argv[2], NULL);
  45
  46                        if (!blk_show_device(uclass_id, dev)) {
  47                                *cur_devnump = dev;
  48                                printf("... is now current device\n");
  49                        } else {
  50                                return CMD_RET_FAILURE;
  51                        }
  52                        return 0;
  53                } else if (strncmp(argv[1], "part", 4) == 0) {
  54                        int dev = (int)dectoul(argv[2], NULL);
  55
  56                        if (blk_print_part_devnum(uclass_id, dev)) {
  57                                printf("\n%s device %d not available\n",
  58                                       if_name, dev);
  59                                return CMD_RET_FAILURE;
  60                        }
  61                        return 0;
  62                }
  63                return CMD_RET_USAGE;
  64
  65        default: /* at least 4 args */
  66                if (strcmp(argv[1], "read") == 0) {
  67                        phys_addr_t paddr = hextoul(argv[2], NULL);
  68                        lbaint_t blk = hextoul(argv[3], NULL);
  69                        ulong cnt = hextoul(argv[4], NULL);
  70                        void *vaddr;
  71                        ulong n;
  72
  73                        printf("\n%s read: device %d block # "LBAFU", count %lu ... ",
  74                               if_name, *cur_devnump, blk, cnt);
  75
  76                        vaddr = map_sysmem(paddr, 512 * cnt);
  77                        n = blk_read_devnum(uclass_id, *cur_devnump, blk, cnt,
  78                                            vaddr);
  79                        unmap_sysmem(vaddr);
  80
  81                        printf("%ld blocks read: %s\n", n,
  82                               n == cnt ? "OK" : "ERROR");
  83                        return n == cnt ? 0 : 1;
  84                } else if (strcmp(argv[1], "write") == 0) {
  85                        phys_addr_t paddr = hextoul(argv[2], NULL);
  86                        lbaint_t blk = hextoul(argv[3], NULL);
  87                        ulong cnt = hextoul(argv[4], NULL);
  88                        void *vaddr;
  89                        ulong n;
  90
  91                        printf("\n%s write: device %d block # "LBAFU", count %lu ... ",
  92                               if_name, *cur_devnump, blk, cnt);
  93
  94                        vaddr = map_sysmem(paddr, 512 * cnt);
  95                        n = blk_write_devnum(uclass_id, *cur_devnump, blk, cnt,
  96                                             vaddr);
  97                        unmap_sysmem(vaddr);
  98
  99                        printf("%ld blocks written: %s\n", n,
 100                               n == cnt ? "OK" : "ERROR");
 101                        return n == cnt ? 0 : 1;
 102                } else {
 103                        return CMD_RET_USAGE;
 104                }
 105        }
 106}
 107