[U-Boot] [RFC][PATCH] cmd: pxe: Display splashscreen from extlinux.conf input

[Patrice CHOTARD]

Hi All,

Any comments ?

Patrice

On 12/20/18 3:53 PM, Patrice Chotard wrote:
> The objective is to provide a simple way to retrieve a BMP file,
> and display it as splashscreen, from extlinux.conf file input.
> 
> For this, we take example on https://www.syslinux.org/wiki/
> index.php?title=Menu#The_advanced_menu_system
> and more particularly on MENU BACKGROUND chapter.
> For this, add "menu background" support in pxe command.
> 
> As example, extlinux.conf content will look like:
> 
> # Generic Distro Configuration file generated by OpenEmbedded
> menu title Select the boot mode
> TIMEOUT 20
> menu background ../splash.bmp
> DEFAULT stm32mp157c-ev1-sdcard
> LABEL stm32mp157c-ev1-sdcard
> 	KERNEL /uImage
> 	FDT /stm32mp157c-ev1.dtb
> 	APPEND root=/dev/mmcblk0p6 rootwait rw earlyprintk console=ttySTM0,115200
> 
> Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
> ---
> 
>  cmd/pxe.c | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/cmd/pxe.c b/cmd/pxe.c
> index 274555319ba8..e77770237cb1 100644
> --- a/cmd/pxe.c
> +++ b/cmd/pxe.c
> @@ -8,11 +8,13 @@
>  #include <command.h>
>  #include <malloc.h>
>  #include <mapmem.h>
> +#include <lcd.h>
>  #include <linux/string.h>
>  #include <linux/ctype.h>
>  #include <errno.h>
>  #include <linux/list.h>
>  #include <fs.h>
> +#include <splash.h>
>  #include <asm/io.h>
>  
>  #include "menu.h"
> @@ -488,6 +490,7 @@ struct pxe_label {
>   *
>   * title - the name of the menu as given by a 'menu title' line.
>   * default_label - the name of the default label, if any.
> + * bmp - the bmp file name which is displayed in background
>   * timeout - time in tenths of a second to wait for a user key-press before
>   *           booting the default label.
>   * prompt - if 0, don't prompt for a choice unless the timeout period is
> @@ -498,6 +501,7 @@ struct pxe_label {
>  struct pxe_menu {
>  	char *title;
>  	char *default_label;
> +	char *bmp;
>  	int timeout;
>  	int prompt;
>  	struct list_head labels;
> @@ -850,6 +854,7 @@ enum token_type {
>  	T_FDTDIR,
>  	T_ONTIMEOUT,
>  	T_IPAPPEND,
> +	T_BACKGROUND,
>  	T_INVALID
>  };
>  
> @@ -883,6 +888,7 @@ static const struct token keywords[] = {
>  	{"fdtdir", T_FDTDIR},
>  	{"ontimeout", T_ONTIMEOUT,},
>  	{"ipappend", T_IPAPPEND,},
> +	{"background", T_BACKGROUND,},
>  	{NULL, T_INVALID}
>  };
>  
> @@ -1160,6 +1166,10 @@ static int parse_menu(cmd_tbl_t *cmdtp, char **c, struct pxe_menu *cfg,
>  						nest_level + 1);
>  		break;
>  
> +	case T_BACKGROUND:
> +		err = parse_sliteral(c, &cfg->bmp);
> +		break;
> +
>  	default:
>  		printf("Ignoring malformed menu command: %.*s\n",
>  				(int)(*c - s), s);
> @@ -1574,6 +1584,20 @@ static void handle_pxe_menu(cmd_tbl_t *cmdtp, struct pxe_menu *cfg)
>  	struct menu *m;
>  	int err;
>  
> +#ifdef CONFIG_CMD_BMP
> +	/* display BMP if available */
> +	if (cfg->bmp) {
> +		if (get_relfile(cmdtp, cfg->bmp, load_addr)) {
> +			run_command("cls", 0);
> +			bmp_display(load_addr,
> +				    BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
> +		} else {
> +			printf("Skipping background bmp %s for failure\n",
> +			       cfg->bmp);
> +		}
> +	}
> +#endif
> +
>  	m = pxe_menu_to_menu(cfg);
>  	if (!m)
>  		return;
>