mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 09:30:10 +00:00
4395f66739
Most block devices provide a command (e.g. 'sata', 'scsi', 'ide') and these commands generally do the same thing. This makes it harder to maintain this code and keep it consistent. We now have a block device interface which is either implemented by driver model (when CONFIG_BLK is enabled) or with a legacy interface. Therefore it is possible to handle most of what these commands do with generic code. Add a new generic function to process block-device commands using the interface type and the current device number for that type. Signed-off-by: Simon Glass <sjg@chromium.org>
104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/*
|
|
* Handling of common block commands
|
|
*
|
|
* Copyright (c) 2017 Google, Inc
|
|
*
|
|
* (C) Copyright 2000-2011
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <blk.h>
|
|
|
|
#ifdef 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 # %lld, count %ld ... ",
|
|
if_name, *cur_devnump, (unsigned long long)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 # %lld, count %ld ... ",
|
|
if_name, *cur_devnump, (unsigned long long)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;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
#endif
|