nuclear@88: #include <stdio.h>
nuclear@88: #include "fs.h"
nuclear@88: #include "ata.h"
nuclear@88: #include "part.h"
nuclear@88: #include "panic.h"
nuclear@88: 
nuclear@88: #define PART_TYPE	0xcc
nuclear@88: 
nuclear@88: static int find_rootfs(int *dev, struct partition *part);
nuclear@88: 
nuclear@88: /* root device & partition */
nuclear@88: static int rdev;
nuclear@88: static struct partition rpart;
nuclear@88: 
nuclear@88: void init_fs(void)
nuclear@88: {
nuclear@88: 	if(find_rootfs(&rdev, &rpart) == -1) {
nuclear@88: 		panic("can't find root filesystem\n");
nuclear@88: 	}
nuclear@88: }
nuclear@88: 
nuclear@88: static int find_rootfs(int *dev, struct partition *part)
nuclear@88: {
nuclear@88: 	int i, num_dev, partid;
nuclear@88: 	struct partition *plist, *p;
nuclear@88: 
nuclear@88: 	num_dev = ata_num_devices();
nuclear@88: 	for(i=0; i<num_dev; i++) {
nuclear@88: 		plist = p = get_part_list(i);
nuclear@88: 
nuclear@88: 		partid = 0;
nuclear@88: 		while(p) {
nuclear@88: 			if(get_part_type(p) == PART_TYPE) {
nuclear@88: 				/* found it! */
nuclear@88: 				printf("using ata%dp%d\n", i, partid);
nuclear@88: 				*dev = i;
nuclear@88: 				*part = *p;
nuclear@88: 				return 0;
nuclear@88: 			}
nuclear@88: 			p = p->next;
nuclear@88: 			partid++;
nuclear@88: 		}
nuclear@88: 		free_part_list(plist);
nuclear@88: 	}
nuclear@88: 	return -1;
nuclear@88: }