common/cmd_vfd.c

/*
 * (C) Copyright 2001
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/*
 * Command to load a splash screen to the VFDs.
 * NOTE that this will be controlled by a key combination when
 * the keyboard stuff works. For now the user has to enter a
 * bitmap number (only VFD_TEST_LOGO is supported now - 16.10.2002).
 * Added VFD_REMOTE_LOGO (same as VFD_TEST_LOGO but a different color)
 * on 20.10.2002.
 *
 * This rather crudely requires that each bitmap be included as a
 * header file.
 */
#include <common.h>
#include <command.h>

#if defined(CONFIG_CMD_VFD)

#include <vfd_logo.h>
#define VFD_TEST_LOGO_BMPNR 0
#define VFD_REMOTE_LOGO_BMPNR 1

extern int transfer_pic(unsigned char, unsigned char *, int, int);

int trab_vfd (ulong bitmap);

int do_vfd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	ulong bitmap;

	if (argc != 2)
		return cmd_usage(cmdtp);

	if (argv[1][0] == '/') {	/* select bitmap by number */
		bitmap = simple_strtoul(argv[1]+1, NULL, 10);
		return (trab_vfd(bitmap));
	}

	/* display bitmap at given address */
	bitmap = simple_strtoul(argv[1], NULL, 16);
	transfer_pic(3, (uchar *)bitmap, VFD_LOGO_HEIGHT, VFD_LOGO_WIDTH);
	return 0;
}

U_BOOT_CMD(
	vfd,	2,	0,	do_vfd,
	"load a bitmap to the VFDs on TRAB",
	"/N\n"
	"    - load bitmap N to the VFDs (N is _decimal_ !!!)\n"
	"vfd ADDR\n"
	"    - load bitmap at address ADDR"
);
#endif

int trab_vfd (ulong bitmap)
{
	uchar *addr;
	char *s;

	switch (bitmap) {
	case VFD_TEST_LOGO_BMPNR:
		if ((s = getenv ("bitmap0")) != NULL) {
			addr = (uchar *)simple_strtoul (s, NULL, 16);
		} else {
			addr = &vfd_test_logo_bitmap[0];
		}
		break;
	case VFD_REMOTE_LOGO_BMPNR:
		if ((s = getenv ("bitmap1")) != NULL) {
			addr = (uchar *)simple_strtoul (s, NULL, 16);
		} else {
			addr = &vfd_remote_logo_bitmap[0];
		}
		break;
	default:
		printf("Unknown bitmap %ld\n", bitmap);
		return 1;
	}
	transfer_pic(3, addr, VFD_LOGO_HEIGHT, VFD_LOGO_WIDTH);
	return 0;
}