1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/fs.c	Thu Dec 08 13:34:47 2011 +0200
     1.3 @@ -0,0 +1,46 @@
     1.4 +#include <stdio.h>
     1.5 +#include "fs.h"
     1.6 +#include "ata.h"
     1.7 +#include "part.h"
     1.8 +#include "panic.h"
     1.9 +
    1.10 +#define PART_TYPE	0xcc
    1.11 +
    1.12 +static int find_rootfs(int *dev, struct partition *part);
    1.13 +
    1.14 +/* root device & partition */
    1.15 +static int rdev;
    1.16 +static struct partition rpart;
    1.17 +
    1.18 +void init_fs(void)
    1.19 +{
    1.20 +	if(find_rootfs(&rdev, &rpart) == -1) {
    1.21 +		panic("can't find root filesystem\n");
    1.22 +	}
    1.23 +}
    1.24 +
    1.25 +static int find_rootfs(int *dev, struct partition *part)
    1.26 +{
    1.27 +	int i, num_dev, partid;
    1.28 +	struct partition *plist, *p;
    1.29 +
    1.30 +	num_dev = ata_num_devices();
    1.31 +	for(i=0; i<num_dev; i++) {
    1.32 +		plist = p = get_part_list(i);
    1.33 +
    1.34 +		partid = 0;
    1.35 +		while(p) {
    1.36 +			if(get_part_type(p) == PART_TYPE) {
    1.37 +				/* found it! */
    1.38 +				printf("using ata%dp%d\n", i, partid);
    1.39 +				*dev = i;
    1.40 +				*part = *p;
    1.41 +				return 0;
    1.42 +			}
    1.43 +			p = p->next;
    1.44 +			partid++;
    1.45 +		}
    1.46 +		free_part_list(plist);
    1.47 +	}
    1.48 +	return -1;
    1.49 +}