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https://github.com/AsahiLinux/u-boot
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8ccc948f40
Avoid using magic number 0/1 for the command result. Signed-off-by: Bin Meng <bmeng@tinylab.org> Reviewed-by: Tom Rini <trini@konsulko.com>
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Handling of common block commands
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*
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* Copyright (c) 2017 Google, Inc
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*
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* (C) Copyright 2000-2011
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <blk.h>
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#include <command.h>
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#include <mapmem.h>
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int blk_common_cmd(int argc, char *const argv[], enum uclass_id uclass_id,
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int *cur_devnump)
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{
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const char *if_name = blk_get_uclass_name(uclass_id);
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switch (argc) {
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case 0:
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case 1:
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return CMD_RET_USAGE;
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case 2:
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if (strncmp(argv[1], "inf", 3) == 0) {
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blk_list_devices(uclass_id);
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return CMD_RET_SUCCESS;
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} else if (strncmp(argv[1], "dev", 3) == 0) {
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if (blk_print_device_num(uclass_id, *cur_devnump)) {
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printf("\nno %s devices available\n", if_name);
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return CMD_RET_FAILURE;
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}
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return CMD_RET_SUCCESS;
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} else if (strncmp(argv[1], "part", 4) == 0) {
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if (blk_list_part(uclass_id))
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printf("\nno %s partition table available\n",
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if_name);
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return CMD_RET_SUCCESS;
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}
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return CMD_RET_USAGE;
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case 3:
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if (strncmp(argv[1], "dev", 3) == 0) {
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int dev = (int)dectoul(argv[2], NULL);
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if (!blk_show_device(uclass_id, dev)) {
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*cur_devnump = dev;
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printf("... is now current device\n");
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} else {
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return CMD_RET_FAILURE;
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}
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return CMD_RET_SUCCESS;
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} else if (strncmp(argv[1], "part", 4) == 0) {
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int dev = (int)dectoul(argv[2], NULL);
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if (blk_print_part_devnum(uclass_id, dev)) {
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printf("\n%s device %d not available\n",
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if_name, dev);
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return CMD_RET_FAILURE;
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}
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return CMD_RET_SUCCESS;
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}
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return CMD_RET_USAGE;
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default: /* at least 4 args */
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if (strcmp(argv[1], "read") == 0) {
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phys_addr_t paddr = hextoul(argv[2], NULL);
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lbaint_t blk = hextoul(argv[3], NULL);
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ulong cnt = hextoul(argv[4], NULL);
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void *vaddr;
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ulong n;
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printf("\n%s read: device %d block # "LBAFU", count %lu ... ",
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if_name, *cur_devnump, blk, cnt);
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vaddr = map_sysmem(paddr, 512 * cnt);
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n = blk_read_devnum(uclass_id, *cur_devnump, blk, cnt,
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vaddr);
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unmap_sysmem(vaddr);
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printf("%ld blocks read: %s\n", n,
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n == cnt ? "OK" : "ERROR");
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return n == cnt ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
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} else if (strcmp(argv[1], "write") == 0) {
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phys_addr_t paddr = hextoul(argv[2], NULL);
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lbaint_t blk = hextoul(argv[3], NULL);
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ulong cnt = hextoul(argv[4], NULL);
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void *vaddr;
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ulong n;
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printf("\n%s write: device %d block # "LBAFU", count %lu ... ",
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if_name, *cur_devnump, blk, cnt);
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vaddr = map_sysmem(paddr, 512 * cnt);
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n = blk_write_devnum(uclass_id, *cur_devnump, blk, cnt,
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vaddr);
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unmap_sysmem(vaddr);
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printf("%ld blocks written: %s\n", n,
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n == cnt ? "OK" : "ERROR");
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return n == cnt ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
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} else {
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return CMD_RET_USAGE;
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}
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}
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}
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