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-rw-r--r--cmd/cedit.c291
1 files changed, 291 insertions, 0 deletions
diff --git a/cmd/cedit.c b/cmd/cedit.c
new file mode 100644
index 00000000000..fec67a8e334
--- /dev/null
+++ b/cmd/cedit.c
@@ -0,0 +1,291 @@
+// 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;
+}
+
+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"
+ "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),
+ 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),
+);
generated by cgit v1.2.3 (git 2.0.4) at 2025-08-02 02:10:31 +0000