LXR uboot/cmd/lsblk.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2020
   4 * Niel Fourie, DENX Software Engineering, lusus@denx.de.
   5 */
   6
   7#include <common.h>
   8#include <blk.h>
   9#include <command.h>
  10#include <dm.h>
  11
  12static int do_lsblk(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
  13{
  14        struct driver *d = ll_entry_start(struct driver, driver);
  15        const int n_ents = ll_entry_count(struct driver, driver);
  16        struct driver *entry;
  17        struct udevice *udev;
  18        struct uclass *uc;
  19        struct blk_desc *desc;
  20        int ret, i;
  21
  22        ret = uclass_get(UCLASS_BLK, &uc);
  23        if (ret) {
  24                puts("Could not get BLK uclass.\n");
  25                return CMD_RET_FAILURE;
  26        }
  27        puts("Block Driver          Devices\n");
  28        puts("-----------------------------\n");
  29        for (entry = d; entry < d + n_ents; entry++) {
  30                if (entry->id != UCLASS_BLK)
  31                        continue;
  32                i = 0;
  33                printf("%-20.20s", entry->name);
  34                uclass_foreach_dev(udev, uc) {
  35                        if (udev->driver != entry)
  36                                continue;
  37                        desc = dev_get_uclass_plat(udev);
  38                        printf("%c %s %u", i ? ',' : ':',
  39                               blk_get_if_type_name(desc->if_type),
  40                               desc->devnum);
  41                        i++;
  42                }
  43                if (!i)
  44                        puts(": <none>");
  45                puts("\n");
  46        }
  47
  48        return CMD_RET_SUCCESS;
  49}
  50
  51U_BOOT_CMD(lsblk, 1, 0, do_lsblk, "list block drivers and devices",
  52           "- display list of block device drivers and attached block devices"
  53);
  54