xref: /linux-6.15/drivers/mtd/maps/map_funcs.c (revision 1da177e4)
1*1da177e4SLinus Torvalds /*
2*1da177e4SLinus Torvalds  * $Id: map_funcs.c,v 1.9 2004/07/13 22:33:15 dwmw2 Exp $
3*1da177e4SLinus Torvalds  *
4*1da177e4SLinus Torvalds  * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS
5*1da177e4SLinus Torvalds  * is enabled.
6*1da177e4SLinus Torvalds  */
7*1da177e4SLinus Torvalds 
8*1da177e4SLinus Torvalds #include <linux/kernel.h>
9*1da177e4SLinus Torvalds #include <linux/module.h>
10*1da177e4SLinus Torvalds 
11*1da177e4SLinus Torvalds #include <linux/mtd/map.h>
12*1da177e4SLinus Torvalds 
13*1da177e4SLinus Torvalds static map_word simple_map_read(struct map_info *map, unsigned long ofs)
14*1da177e4SLinus Torvalds {
15*1da177e4SLinus Torvalds 	return inline_map_read(map, ofs);
16*1da177e4SLinus Torvalds }
17*1da177e4SLinus Torvalds 
18*1da177e4SLinus Torvalds static void simple_map_write(struct map_info *map, const map_word datum, unsigned long ofs)
19*1da177e4SLinus Torvalds {
20*1da177e4SLinus Torvalds 	inline_map_write(map, datum, ofs);
21*1da177e4SLinus Torvalds }
22*1da177e4SLinus Torvalds 
23*1da177e4SLinus Torvalds static void simple_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
24*1da177e4SLinus Torvalds {
25*1da177e4SLinus Torvalds 	inline_map_copy_from(map, to, from, len);
26*1da177e4SLinus Torvalds }
27*1da177e4SLinus Torvalds 
28*1da177e4SLinus Torvalds static void simple_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
29*1da177e4SLinus Torvalds {
30*1da177e4SLinus Torvalds 	inline_map_copy_to(map, to, from, len);
31*1da177e4SLinus Torvalds }
32*1da177e4SLinus Torvalds 
33*1da177e4SLinus Torvalds void simple_map_init(struct map_info *map)
34*1da177e4SLinus Torvalds {
35*1da177e4SLinus Torvalds 	BUG_ON(!map_bankwidth_supported(map->bankwidth));
36*1da177e4SLinus Torvalds 
37*1da177e4SLinus Torvalds 	map->read = simple_map_read;
38*1da177e4SLinus Torvalds 	map->write = simple_map_write;
39*1da177e4SLinus Torvalds 	map->copy_from = simple_map_copy_from;
40*1da177e4SLinus Torvalds 	map->copy_to = simple_map_copy_to;
41*1da177e4SLinus Torvalds }
42*1da177e4SLinus Torvalds 
43*1da177e4SLinus Torvalds EXPORT_SYMBOL(simple_map_init);
44*1da177e4SLinus Torvalds MODULE_LICENSE("GPL");
45