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>
This commit is contained in:
Simon Glass 2017-06-16 12:51:42 -06:00
parent 32e9ec1f88
commit 6c519f2dc4
3 changed files with 53 additions and 6 deletions

View file

@ -56,4 +56,23 @@ int print_buffer(ulong addr, const void *data, uint width, uint count,
*/
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