1 #include <dprintf.h>
2 #include <stdio.h>
3 #include <string.h>
4 #include <stdbool.h>
5 #include <klibc/compiler.h>
6 #include <core.h>
7 #include <fs.h>
8 #include <disk.h>
9 #include <ilog2.h>
10 #include <minmax.h>
11
12 #include <syslinux/firmware.h>
13
getoneblk(struct disk * disk,char * buf,block_t block,int block_size)14 void getoneblk(struct disk *disk, char *buf, block_t block, int block_size)
15 {
16 int sec_per_block = block_size / disk->sector_size;
17
18 disk->rdwr_sectors(disk, buf, block * sec_per_block, sec_per_block, 0);
19 }
20
21 /*
22 * Initialize the device structure.
23 */
device_init(void * args)24 struct device * device_init(void *args)
25 {
26 static struct device dev;
27
28 dev.disk = firmware->disk_init(args);
29 dev.cache_size = 128*1024;
30 dev.cache_data = malloc(dev.cache_size);
31 dev.cache_init = 0; /* Explicitly set cache as uninitialized */
32
33 return &dev;
34 }
35