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part: Add support for list filtering on bootable partitions

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Add an optional -bootable parameter to the part list commands to only
put the list of bootable partitions in the environment variable

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Sjoerd Simons 2015-02-25 23:23:50 +01:00 • committed by Tom Rini
parent b81bdf62e0
commit 0798d6fd41
1 changed files with 41 additions and 12 deletions
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53
common/cmd_part.c
View file

@ -53,29 +53,57 @@ static int do_part_list(int argc, char * const argv[])
{ {
int ret; int ret;
block_dev_desc_t *desc; block_dev_desc_t *desc;
char *var = NULL;
bool bootable = false;
int i;
if (argc < 2 || argc > 3) if (argc < 2)
return CMD_RET_USAGE; return CMD_RET_USAGE;
if (argc > 2) {
for (i = 2; i < argc ; i++) {
if (argv[i][0] == '-') {
if (!strcmp(argv[i], "-bootable")) {
bootable = true;
} else {
printf("Unknown option %s\n", argv[i]);
return CMD_RET_USAGE;
}
} else {
var = argv[i];
break;
}
}
/* Loops should have been exited at the last argument, which
* as it contained the variable */
if (argc != i + 1)
return CMD_RET_USAGE;
}
ret = get_device(argv[0], argv[1], &desc); ret = get_device(argv[0], argv[1], &desc);
if (ret < 0) if (ret < 0)
return 1; return 1;
if (argc == 3) { if (var != NULL) {
int p; int p;
char str[512] = { 0, }; char str[512] = { '\0', };
disk_partition_t info; disk_partition_t info;
for (p = 1; p < 128; p++) { for (p = 1; p < 128; p++) {
char t[5];
int r = get_partition_info(desc, p, &info); int r = get_partition_info(desc, p, &info);
if (r == 0) { if (r != 0)
char t[5]; continue;
sprintf(t, "%s%d", str[0] ? " " : "", p);
strcat(str, t); if (bootable && !info.bootable)
} continue;
sprintf(t, "%s%d", str[0] ? " " : "", p);
strcat(str, t);
} }
setenv(argv[2], str); setenv(var, str);
return 0; return 0;
} }
@ -98,7 +126,7 @@ static int do_part(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
} }
U_BOOT_CMD( U_BOOT_CMD(
part, 5, 1, do_part, part, CONFIG_SYS_MAXARGS, 1, do_part,
"disk partition related commands", "disk partition related commands",
"part uuid <interface> <dev>:<part>\n" "part uuid <interface> <dev>:<part>\n"
" - print partition UUID\n" " - print partition UUID\n"
@ -106,6 +134,7 @@ U_BOOT_CMD(
" - set environment variable to partition UUID\n" " - set environment variable to partition UUID\n"
"part list <interface> <dev>\n" "part list <interface> <dev>\n"
" - print a device's partition table\n" " - print a device's partition table\n"
"part list <interface> <dev> <varname>\n" "part list <interface> <dev> [flags] <varname>\n"
" - set environment variable to the list of partitions" " - set environment variable to the list of partitions\n"
" flags can be -bootable (list only bootable partitions)"
); );