expo: Add a configuration editor
Add a new 'cedit' command which allows editing configuration using an
expo. The configuration items appear as menus on the display.
This is extremely basic, only supporting menus and not providing any way
to load or save the configuration.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index c194184..f6b10e0 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -428,6 +428,15 @@
See doc/android/boot-image.rst for details.
+config CMD_CEDIT
+ bool "cedit - Configuration editor"
+ depends on CEDIT
+ default y
+ help
+ Provides a command to allow editing of board configuration and
+ providing a UI for the user to adjust settings. Subcommands allow
+ loading and saving of configuration as well as showing an editor.
+
config CMD_ELF
bool "bootelf, bootvx"
default y
diff --git a/cmd/Makefile b/cmd/Makefile
index 6c37521..9f8c0b0 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -43,6 +43,7 @@
obj-$(CONFIG_CMD_CAT) += cat.o
obj-$(CONFIG_CMD_CACHE) += cache.o
obj-$(CONFIG_CMD_CBFS) += cbfs.o
+obj-$(CONFIG_CMD_CEDIT) += cedit.o
obj-$(CONFIG_CMD_CLK) += clk.o
obj-$(CONFIG_CMD_CLS) += cls.o
obj-$(CONFIG_CMD_CONFIG) += config.o
diff --git a/cmd/cedit.c b/cmd/cedit.c
new file mode 100644
index 0000000..0cae304
--- /dev/null
+++ b/cmd/cedit.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 'cedit' command
+ *
+ * Copyright 2023 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <expo.h>
+#include <fs.h>
+#include <dm/ofnode.h>
+#include <linux/sizes.h>
+
+struct expo *cur_exp;
+
+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_run(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ ofnode node;
+ int ret;
+
+ if (!cur_exp) {
+ printf("No expo loaded\n");
+ return CMD_RET_FAILURE;
+ }
+
+ node = ofnode_path("/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;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char cedit_help_text[] =
+ "load <interface> <dev[:part]> <filename> - load config editor\n"
+ "cedit run - run config editor";
+#endif /* CONFIG_SYS_LONGHELP */
+
+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(run, 1, 1, do_cedit_run),
+);