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
blk_common_cmd(int argc,char * const argv[],enum if_type if_type,int * cur_devnump)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 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)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 # "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 = simple_strtoul(argv[2], NULL, 16);
82 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
83 ulong cnt = simple_strtoul(argv[4], NULL, 16);
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