display_options: Refactor to allow obtaining the banner
Move the display options code into a separate function so that the U-Boot
banner can be obtained from other code. Adjust the 'version' command to
use it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
diff --git a/include/display_options.h b/include/display_options.h
index ac44c45..d9c8f6d 100644
--- a/include/display_options.h
+++ b/include/display_options.h
@@ -56,4 +56,23 @@
*/
int display_options(void);
+/* Suggested length of the buffer to pass to display_options_get_banner() */
+#define DISPLAY_OPTIONS_BANNER_LENGTH 200
+
+/**
+ * display_options_get_banner() - Get the U-Boot banner as a string
+ *
+ * This returns the U-Boot banner string
+ *
+ * @newlines: true to include two newlines at the start
+ * @buf: place to put string
+ * @size: Size of buf (string is truncated to fit)
+ * @return buf
+ */
+char *display_options_get_banner(bool newlines, char *buf, int size);
+
+/* This function is used for testing only */
+char *display_options_get_banner_priv(bool newlines, const char *build_tag,
+ char *buf, int size);
+
#endif