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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2012, Google Inc.
*/
#include <common.h>
#include <command.h>
#include <dm.h>
#include <fs.h>
#include <part.h>
#include <sandboxblockdev.h>
#include <dm/device_compat.h>
#include <linux/errno.h>
static int host_curr_device = -1;
static int do_host_load(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return do_load(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
}
static int do_host_ls(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return do_ls(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
}
static int do_host_size(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return do_size(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
}
static int do_host_save(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return do_save(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
}
static int do_host_bind(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
bool removable = false;
const char *dev_str;
char *file;
char *ep;
int dev;
/* Skip 'bind' */
argc--;
argv++;
if (argc < 2)
return CMD_RET_USAGE;
if (!strcmp(argv[0], "-r")) {
removable = true;
argc--;
argv++;
}
if (argc > 2)
return CMD_RET_USAGE;
dev_str = argv[0];
dev = simple_strtoul(dev_str, &ep, 16);
if (*ep) {
printf("** Bad device specification %s **\n", dev_str);
return CMD_RET_USAGE;
}
file = argc > 1 ? argv[1] : NULL;
return !!host_dev_bind(dev, file, removable);
}
static int do_host_info(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
if (argc < 1 || argc > 2)
return CMD_RET_USAGE;
int min_dev = 0;
int max_dev = CONFIG_HOST_MAX_DEVICES - 1;
if (argc >= 2) {
char *ep;
char *dev_str = argv[1];
int dev = simple_strtoul(dev_str, &ep, 16);
if (*ep) {
printf("** Bad device specification %s **\n", dev_str);
return CMD_RET_USAGE;
}
min_dev = dev;
max_dev = dev;
}
int dev;
printf("%3s %12s %s\n", "dev", "blocks", "path");
for (dev = min_dev; dev <= max_dev; dev++) {
struct blk_desc *blk_dev;
int ret;
printf("%3d ", dev);
ret = host_get_dev_err(dev, &blk_dev);
if (ret) {
if (ret == -ENOENT)
puts("Not bound to a backing file\n");
else if (ret == -ENODEV)
puts("Invalid host device number\n");
continue;
}
struct host_block_dev *host_dev;
#ifdef CONFIG_BLK
host_dev = dev_get_plat(blk_dev->bdev);
#else
host_dev = blk_dev->priv;
#endif
printf("%12lu %s\n", (unsigned long)blk_dev->lba,
host_dev->filename);
}
return 0;
}
static int do_host_dev(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
int dev;
char *ep;
struct blk_desc *blk_dev;
int ret;
if (argc < 1 || argc > 3)
return CMD_RET_USAGE;
if (argc == 1) {
if (host_curr_device < 0) {
printf("No current host device\n");
return 1;
}
printf("Current host device %d\n", host_curr_device);
return 0;
}
dev = simple_strtoul(argv[1], &ep, 16);
if (*ep) {
printf("** Bad device specification %s **\n", argv[2]);
return CMD_RET_USAGE;
}
ret = host_get_dev_err(dev, &blk_dev);
if (ret) {
if (ret == -ENOENT)
puts("Not bound to a backing file\n");
else if (ret == -ENODEV)
puts("Invalid host device number\n");
return 1;
}
host_curr_device = dev;
return 0;
}
static struct cmd_tbl cmd_host_sub[] = {
U_BOOT_CMD_MKENT(load, 7, 0, do_host_load, "", ""),
U_BOOT_CMD_MKENT(ls, 3, 0, do_host_ls, "", ""),
U_BOOT_CMD_MKENT(save, 6, 0, do_host_save, "", ""),
U_BOOT_CMD_MKENT(size, 3, 0, do_host_size, "", ""),
U_BOOT_CMD_MKENT(bind, 4, 0, do_host_bind, "", ""),
U_BOOT_CMD_MKENT(info, 3, 0, do_host_info, "", ""),
U_BOOT_CMD_MKENT(dev, 0, 1, do_host_dev, "", ""),
};
static int do_host(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct cmd_tbl *c;
/* Skip past 'host' */
argc--;
argv++;
c = find_cmd_tbl(argv[0], cmd_host_sub,
ARRAY_SIZE(cmd_host_sub));
if (c)
return c->cmd(cmdtp, flag, argc, argv);
else
return CMD_RET_USAGE;
}
U_BOOT_CMD(
host, 8, 1, do_host,
"Miscellaneous host commands",
"load hostfs - <addr> <filename> [<bytes> <offset>] - "
"load a file from host\n"
"host ls hostfs - <filename> - list files on host\n"
"host save hostfs - <addr> <filename> <bytes> [<offset>] - "
"save a file to host\n"
"host size hostfs - <filename> - determine size of file on host\n"
"host bind [-r] <dev> [<filename>] - bind \"host\" device to file\n"
" -r = mark as removable\n"
"host info [<dev>] - show device binding & info\n"
"host dev [<dev>] - Set or retrieve the current host device\n"
"host commands use the \"hostfs\" device. The \"host\" device is used\n"
"with standard IO commands such as fatls or ext2load"
);
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