diff options
Diffstat (limited to 'common/cmd_fdos.c')
| -rw-r--r-- | common/cmd_fdos.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/common/cmd_fdos.c b/common/cmd_fdos.c new file mode 100644 index 0000000..763f418 --- /dev/null +++ b/common/cmd_fdos.c @@ -0,0 +1,145 @@ +/* + * (C) Copyright 2002 + * Stäubli Faverges - <www.staubli.com> + * Pierre AUBERT p.aubert@staubli.com + * + * 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 + */ + +/* + * Dos floppy support + */ + +#include <common.h> +#include <config.h> +#include <command.h> +#include <fdc.h> + +#if (CONFIG_COMMANDS & CFG_CMD_FDOS) + +/*----------------------------------------------------------------------------- + * do_fdosboot -- + *----------------------------------------------------------------------------- + */ +int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + char *name; + char *ep; + int size; + int rcode = 0; + char buf [10]; + int drive = CFG_FDC_DRIVE_NUMBER; + + /* pre-set load_addr */ + if ((ep = getenv("loadaddr")) != NULL) { + load_addr = simple_strtoul(ep, NULL, 16); + } + + /* pre-set Boot file name */ + if ((name = getenv("bootfile")) == NULL) { + name = "pImage"; + } + + switch (argc) { + case 1: + break; + case 2: + /* only one arg - accept two forms: + * just load address, or just boot file name. + * The latter form must be written "filename" here. + */ + if (argv[1][0] == '"') { /* just boot filename */ + name = argv [1]; + } else { /* load address */ + load_addr = simple_strtoul(argv[1], NULL, 16); + } + break; + case 3: + load_addr = simple_strtoul(argv[1], NULL, 16); + name = argv [2]; + break; + default: + printf ("Usage:\n%s\n", cmdtp->usage); + break; + } + + /* Init physical layer */ + if (!fdc_fdos_init (drive)) { + return (-1); + } + + /* Open file */ + if (dos_open (name) < 0) { + printf ("Unable to open %s\n", name); + return 1; + } + if ((size = dos_read (load_addr)) < 0) { + printf ("boot error\n"); + return 1; + } + flush_cache (load_addr, size); + + sprintf(buf, "%x", size); + setenv("filesize", buf); + + printf("Floppy DOS load complete: %d bytes loaded to 0x%lx\n", + size, load_addr); + + /* Check if we should attempt an auto-start */ + if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) { + char *local_args[2]; + extern int do_bootm (cmd_tbl_t *, int, int, char *[]); + local_args[0] = argv[0]; + local_args[1] = NULL; + printf ("Automatic boot of image at addr 0x%08lX ...\n", load_addr); + rcode = do_bootm (cmdtp, 0, 1, local_args); + } + return rcode; +} + +/*----------------------------------------------------------------------------- + * do_fdosls -- + *----------------------------------------------------------------------------- + */ +int do_fdosls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + char *path = ""; + int drive = CFG_FDC_DRIVE_NUMBER; + + switch (argc) { + case 1: + break; + case 2: + path = argv [1]; + break; + } + + /* Init physical layer */ + if (!fdc_fdos_init (drive)) { + return (-1); + } + /* Open directory */ + if (dos_open (path) < 0) { + printf ("Unable to open %s\n", path); + return 1; + } + return (dos_dir ()); +} + +#endif |