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#include <common.h>
#include <command.h>
#include <menu.h>
#include <malloc.h>
#include <ext4fs.h>
#include <ide.h>
#include <ata.h>
#if defined(CONFIG_CMD_BOOT_MENU)
extern int do_stage_boot(cmd_tbl_t * cmdtb, int flag, int argc, char * const argv[]);
extern int do_ext2load (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
extern int do_ext2ls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
extern int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
extern int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
#define BM_TIMEOUT (5)
#define BM_SCRIPTS_LOCATION "/boot_scripts/"
#define BM_OUT_BUF_SIZE (1024)
#define BM_MAX_LIST_ITEM (8)
struct bm_item {
char key[4];
char *name;
} bm_item_list[BM_MAX_LIST_ITEM];
void bm_item_print(void *item_data)
{
struct bm_item *item = (struct bm_item *)item_data;
printf(" %s : %s\n", item->key, item->name);
}
int do_boot_menu(cmd_tbl_t * cmdtb, int flag, int argc, char * const argv[])
{
char *out_buffer, *filename, *ifname, *dst;
char source_device[10];
char dev_part[10];
struct bm_item *choice;
int j, i, device, part, len;
block_dev_desc_t * dev_desc;
struct menu *m = NULL;
char *args_to_func[3];
disk_partition_t info;
out_buffer = (char *)malloc(BM_OUT_BUF_SIZE);
if (out_buffer == NULL) {
printf("boot_menu: Failed to allocate memory!");
return 0;
}
/* Read interface name, device number and partition from boot_source_device
environment variable. It should be set by stage_boot command. */
ifname = getenv("boot_source_device");
if (ifname == NULL) {
printf("boot_menu: Environment variable 'boot_source_device' must be defined.\n");
goto error;
}
strncpy(source_device, ifname, sizeof(source_device));
source_device[sizeof(source_device) - 1] = '\0';
ifname = strchr(source_device, ' ');
if (ifname == NULL) {
printf("boot_menu: Incorrect format of 'boot_source_device' variable.\n");
goto error;
}
*ifname = '\0';
ifname++;
len = strstr(ifname, ":") - ifname;
strncpy(dev_part, ifname, len);
dev_part[len] = '\0';
device = simple_strtoul(ifname, NULL, 0);
ifname = strchr(ifname, ':');
if (ifname == NULL) {
printf("boot_menu: Incorrect format of 'boot_source_device' variable.\n");
goto error;
}
ifname++;
part = simple_strtoul(ifname, NULL, 0);
ifname = source_device;
/* Initialize proper interface and check if the device exists. */
if (strcmp(ifname, "ide") == 0)
ide_init();
else if (strcmp(ifname, "usb") == 0) {
args_to_func[0]=ifname;
args_to_func[1]="start";
do_usb(cmdtb, 1, 2, args_to_func);
} else if (strcmp(ifname, "mmc") == 0) {
args_to_func[0]=ifname;
args_to_func[1]="rescan";
do_mmcops(cmdtb, 1, 2, args_to_func);
args_to_func[0]=ifname;
args_to_func[1]="dev";
args_to_func[2]=dev_part;
do_mmcops(cmdtb, 1, 3, args_to_func);
}
filename = BM_SCRIPTS_LOCATION;
printf("Search for boot scripts in %s directory, on %s %d:%d [%s] device.\n",
filename, ifname, device, part, dev_part);
/* Read list of files in /boot_scripts/ directory. */
out_buffer[0] = '\0';
part = get_device_and_partition(args_to_func[0], dev_part, &dev_desc, &info, 1);
if (part < 0)
return 1;
/* set the device as block device */
ext4fs_set_blk_dev(dev_desc, &info);
if (ext4fs_mount(info.size))
ext4fs_ls (filename, out_buffer, BM_OUT_BUF_SIZE);
ext4fs_close();
/* Prepare a menu to select one of boot scripts. */
putc('\n');
putc('\n');
m = menu_create("Select boot script:", BM_TIMEOUT * 10,
0, bm_item_print);
filename = out_buffer;
j = 0;
while (1) {
filename = strstr(filename, ".scr");
if (filename == NULL)
break;
if ((*(filename + 4) > 32) && (*(filename + 4) < 127)) {
filename += 4;
continue;
}
i = 4;
while ((*(filename - 1) != ' ') && (*(filename - 1) != '\n')) {
filename--;
i++;
}
if (*(filename + i) == '\0')
i = -1;
else {
*(filename + i) = '\0';
i++;
}
sprintf(bm_item_list[j].key, "%d", j + 1);
bm_item_list[j].name = filename;
menu_item_add(m, bm_item_list[j].key, &bm_item_list[j]);
j++;
if (i < 0)
break;
if (j >= BM_MAX_LIST_ITEM)
break;
filename += i;
}
if (j == 0) {
printf("boot_menu: No boot scripts found.\n");
goto error;
}
/* Choose default value. If the bootmenu_default variable does not
exists or is invalid, the first option will be the default. */
filename = getenv("bootmenu_default");
i = j;
if (filename) {
for (i = 0; i < j; i++)
if (strcmp(filename, bm_item_list[i].name) == 0) {
menu_default_set(m, bm_item_list[i].key);
break;
}
}
if (i == j) {
menu_default_set(m, bm_item_list[0].key);
filename = bm_item_list[0].name;
}
/* Show the menu and save the default option. */
printf("\nPress any key to stop the count-down or the default boot "
"script\n (%s) will be used.\n", filename);
if (menu_get_choice(m, (void**)&choice) != 1) {
printf("boot_menu: Incorrect choice.\n");
goto error;
}
menu_destroy(m);
if ((!filename) || (strcmp(choice->name, filename) != 0)) {
setenv("bootmenu_default", choice->name);
saveenv();
}
/* Set device_partition and script_name to point to the chosen script and
call do_stage_boot. Copy original values and restore them after use. */
ifname = getenv("device_partition");
if (ifname) {
dst = out_buffer + BM_OUT_BUF_SIZE - 1 - strlen(ifname);
ifname = strcpy(dst, ifname);
}
filename = getenv("script_name");
if (filename) {
dst = ifname - 1 - strlen(filename);
filename = strcpy(dst, filename);
}
sprintf(out_buffer, "%d:%d", device, part);
setenv("device_partition", out_buffer);
sprintf(out_buffer, "%s%s", BM_SCRIPTS_LOCATION, choice->name);
setenv("script_name", out_buffer);
args_to_func[0] = "stage_boot";
if (strcmp(source_device, "ide") == 0)
args_to_func[1] = "hd_scr";
else if (strcmp(source_device, "usb") == 0)
args_to_func[1] = "usb_scr";
else if (strcmp(source_device, "mmc") == 0)
args_to_func[1] = "mmc_scr";
do_stage_boot(cmdtb, 1, 2, args_to_func);
if (ifname)
setenv("device_partition", ifname);
if (filename)
setenv("script_name", filename);
free(out_buffer);
return 1;
error:
if (m)
menu_destroy(m);
free(out_buffer);
return 0;
}
U_BOOT_CMD(boot_menu, 1, 1, do_boot_menu, "command allows to select boot script from boot device\n\
example: boot_menu",
"Usage:\n \
boot_menu - search device defined in boot_source_device variable for boot scripts and show menu.\n \
");
#endif