aboutsummaryrefslogtreecommitdiff
path: root/cmd/blk_common.c
blob: 75a072caf51a2d4c490bd1421ad8c724427eca61 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
// 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>
#include <command.h>

int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id,
		   int *cur_devnump)
{
	const char *if_name = blk_get_uclass_name(uclass_id);

	switch (argc) {
	case 0:
	case 1:
		return CMD_RET_USAGE;
	case 2:
		if (strncmp(argv[1], "inf", 3) == 0) {
			blk_list_devices(uclass_id);
			return 0;
		} else if (strncmp(argv[1], "dev", 3) == 0) {
			if (blk_print_device_num(uclass_id, *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(uclass_id))
				printf("\nno %s partition table available\n",
				       if_name);
			return 0;
		}
		return CMD_RET_USAGE;
	case 3:
		if (strncmp(argv[1], "dev", 3) == 0) {
			int dev = (int)dectoul(argv[2], NULL);

			if (!blk_show_device(uclass_id, 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)dectoul(argv[2], NULL);

			if (blk_print_part_devnum(uclass_id, 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 = hextoul(argv[2], NULL);
			lbaint_t blk = hextoul(argv[3], NULL);
			ulong cnt = hextoul(argv[4], NULL);
			ulong n;

			printf("\n%s read: device %d block # "LBAFU", count %lu ... ",
			       if_name, *cur_devnump, blk, cnt);

			n = blk_read_devnum(uclass_id, *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 = hextoul(argv[2], NULL);
			lbaint_t blk = hextoul(argv[3], NULL);
			ulong cnt = hextoul(argv[4], NULL);
			ulong n;

			printf("\n%s write: device %d block # "LBAFU", count %lu ... ",
			       if_name, *cur_devnump, blk, cnt);

			n = blk_write_devnum(uclass_id, *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;
		}
	}
}