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// SPDX-License-Identifier: GPL-2.0+
/*
* 'cedit' command
*
* Copyright 2023 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#include <abuf.h>
#include <cedit.h>
#include <command.h>
#include <dm.h>
#include <expo.h>
#include <fs.h>
#include <malloc.h>
#include <mapmem.h>
#include <dm/ofnode.h>
#include <linux/sizes.h>
struct expo *cur_exp;
static int check_cur_expo(void)
{
if (!cur_exp) {
printf("No expo loaded\n");
return -ENOENT;
}
return 0;
}
static int do_cedit_load(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
const char *fname;
struct expo *exp;
oftree tree;
ulong size;
void *buf;
int ret;
if (argc < 4)
return CMD_RET_USAGE;
fname = argv[3];
ret = fs_load_alloc(argv[1], argv[2], argv[3], SZ_1M, 0, &buf, &size);
if (ret) {
printf("File not found\n");
return CMD_RET_FAILURE;
}
tree = oftree_from_fdt(buf);
if (!oftree_valid(tree)) {
printf("Cannot create oftree\n");
return CMD_RET_FAILURE;
}
ret = expo_build(oftree_root(tree), &exp);
oftree_dispose(tree);
if (ret) {
printf("Failed to build expo: %dE\n", ret);
return CMD_RET_FAILURE;
}
cur_exp = exp;
return 0;
}
#ifdef CONFIG_COREBOOT_SYSINFO
static int do_cedit_cb_load(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct expo *exp;
int ret;
if (argc > 1)
return CMD_RET_USAGE;
ret = cb_expo_build(&exp);
if (ret) {
printf("Failed to build expo: %dE\n", ret);
return CMD_RET_FAILURE;
}
cur_exp = exp;
return 0;
}
#endif /* CONFIG_COREBOOT_SYSINFO */
static int do_cedit_write_fdt(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
const char *fname;
struct abuf buf;
loff_t bytes;
int ret;
if (argc < 4)
return CMD_RET_USAGE;
fname = argv[3];
if (check_cur_expo())
return CMD_RET_FAILURE;
ret = cedit_write_settings(cur_exp, &buf);
if (ret) {
printf("Failed to write settings: %dE\n", ret);
return CMD_RET_FAILURE;
}
if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
return CMD_RET_FAILURE;
ret = fs_write(fname, map_to_sysmem(abuf_data(&buf)), 0,
abuf_size(&buf), &bytes);
if (ret)
return CMD_RET_FAILURE;
return 0;
}
static int do_cedit_read_fdt(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
const char *fname;
void *buf;
oftree tree;
ulong size;
int ret;
if (argc < 4)
return CMD_RET_USAGE;
fname = argv[3];
ret = fs_load_alloc(argv[1], argv[2], argv[3], SZ_1M, 0, &buf, &size);
if (ret) {
printf("File not found\n");
return CMD_RET_FAILURE;
}
tree = oftree_from_fdt(buf);
if (!oftree_valid(tree)) {
free(buf);
printf("Cannot create oftree\n");
return CMD_RET_FAILURE;
}
ret = cedit_read_settings(cur_exp, tree);
oftree_dispose(tree);
free(buf);
if (ret) {
printf("Failed to read settings: %dE\n", ret);
return CMD_RET_FAILURE;
}
return 0;
}
static int do_cedit_write_env(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
bool verbose;
int ret;
if (check_cur_expo())
return CMD_RET_FAILURE;
verbose = argc > 1 && !strcmp(argv[1], "-v");
ret = cedit_write_settings_env(cur_exp, verbose);
if (ret) {
printf("Failed to write settings to environment: %dE\n", ret);
return CMD_RET_FAILURE;
}
return 0;
}
static int do_cedit_read_env(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
bool verbose;
int ret;
if (check_cur_expo())
return CMD_RET_FAILURE;
verbose = argc > 1 && !strcmp(argv[1], "-v");
ret = cedit_read_settings_env(cur_exp, verbose);
if (ret) {
printf("Failed to read settings from environment: %dE\n", ret);
return CMD_RET_FAILURE;
}
return 0;
}
static int do_cedit_write_cmos(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
bool verbose = false;
int ret;
if (check_cur_expo())
return CMD_RET_FAILURE;
if (argc > 1 && !strcmp(argv[1], "-v")) {
verbose = true;
argc--;
argv++;
}
if (argc > 1)
ret = uclass_get_device_by_name(UCLASS_RTC, argv[1], &dev);
else
ret = uclass_first_device_err(UCLASS_RTC, &dev);
if (ret) {
printf("Failed to get RTC device: %dE\n", ret);
return CMD_RET_FAILURE;
}
if (cedit_write_settings_cmos(cur_exp, dev, verbose)) {
printf("Failed to write settings to CMOS\n");
return CMD_RET_FAILURE;
}
return 0;
}
static int do_cedit_read_cmos(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct udevice *dev;
bool verbose = false;
int ret;
if (check_cur_expo())
return CMD_RET_FAILURE;
if (argc > 1 && !strcmp(argv[1], "-v")) {
verbose = true;
argc--;
argv++;
}
if (argc > 1)
ret = uclass_get_device_by_name(UCLASS_RTC, argv[1], &dev);
else
ret = uclass_first_device_err(UCLASS_RTC, &dev);
if (ret) {
printf("Failed to get RTC device: %dE\n", ret);
return CMD_RET_FAILURE;
}
ret = cedit_read_settings_cmos(cur_exp, dev, verbose);
if (ret) {
printf("Failed to read settings from CMOS: %dE\n", ret);
return CMD_RET_FAILURE;
}
return 0;
}
static int do_cedit_run(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
ofnode node;
int ret;
if (check_cur_expo())
return CMD_RET_FAILURE;
node = ofnode_path("/bootstd/cedit-theme");
if (ofnode_valid(node)) {
ret = expo_apply_theme(cur_exp, node);
if (ret)
return CMD_RET_FAILURE;
} else {
log_warning("No theme found\n");
}
ret = cedit_run(cur_exp);
if (ret) {
log_err("Failed (err=%dE)\n", ret);
return CMD_RET_FAILURE;
}
return 0;
}
U_BOOT_LONGHELP(cedit,
"load <interface> <dev[:part]> <filename> - load config editor\n"
#ifdef CONFIG_COREBOOT_SYSINFO
"cb_load - load coreboot CMOS editor\n"
#endif
"cedit read_fdt <i/f> <dev[:part]> <filename> - read settings\n"
"cedit write_fdt <i/f> <dev[:part]> <filename> - write settings\n"
"cedit read_env [-v] - read settings from env vars\n"
"cedit write_env [-v] - write settings to env vars\n"
"cedit read_cmos [-v] [dev] - read settings from CMOS RAM\n"
"cedit write_cmos [-v] [dev] - write settings to CMOS RAM\n"
"cedit run - run config editor");
U_BOOT_CMD_WITH_SUBCMDS(cedit, "Configuration editor", cedit_help_text,
U_BOOT_SUBCMD_MKENT(load, 5, 1, do_cedit_load),
#ifdef CONFIG_COREBOOT_SYSINFO
U_BOOT_SUBCMD_MKENT(cb_load, 5, 1, do_cedit_cb_load),
#endif
U_BOOT_SUBCMD_MKENT(read_fdt, 5, 1, do_cedit_read_fdt),
U_BOOT_SUBCMD_MKENT(write_fdt, 5, 1, do_cedit_write_fdt),
U_BOOT_SUBCMD_MKENT(read_env, 2, 1, do_cedit_read_env),
U_BOOT_SUBCMD_MKENT(write_env, 2, 1, do_cedit_write_env),
U_BOOT_SUBCMD_MKENT(read_cmos, 2, 1, do_cedit_read_cmos),
U_BOOT_SUBCMD_MKENT(write_cmos, 2, 1, do_cedit_write_cmos),
U_BOOT_SUBCMD_MKENT(run, 1, 1, do_cedit_run),
);
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