2 * compat.c - A series of functions to make it easier to convert drivers that use
3 * the old isapnp APIs. If possible use the new APIs instead.
5 * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
9 /* TODO: see if more isapnp functions are needed here */
11 #include <linux/module.h>
12 #include <linux/isapnp.h>
13 #include <linux/string.h>
15 static void pnp_convert_id(char *buf
, unsigned short vendor
,
16 unsigned short device
)
18 sprintf(buf
, "%c%c%c%x%x%x%x",
19 'A' + ((vendor
>> 2) & 0x3f) - 1,
20 'A' + (((vendor
& 3) << 3) | ((vendor
>> 13) & 7)) - 1,
21 'A' + ((vendor
>> 8) & 0x1f) - 1,
23 device
& 0x0f, (device
>> 12) & 0x0f, (device
>> 8) & 0x0f);
26 struct pnp_card
*pnp_find_card(unsigned short vendor
,
27 unsigned short device
, struct pnp_card
*from
)
31 struct list_head
*list
;
32 pnp_convert_id(id
, vendor
, device
);
33 pnp_convert_id(any
, ISAPNP_ANY_ID
, ISAPNP_ANY_ID
);
35 list
= from
? from
->global_list
.next
: pnp_cards
.next
;
37 while (list
!= &pnp_cards
) {
38 struct pnp_card
*card
= global_to_pnp_card(list
);
39 if (compare_pnp_id(card
->id
, id
) || (memcmp(id
, any
, 7) == 0))
46 struct pnp_dev
*pnp_find_dev(struct pnp_card
*card
,
47 unsigned short vendor
,
48 unsigned short function
, struct pnp_dev
*from
)
52 pnp_convert_id(id
, vendor
, function
);
53 pnp_convert_id(any
, ISAPNP_ANY_ID
, ISAPNP_ANY_ID
);
54 if (card
== NULL
) { /* look for a logical device from all cards */
55 struct list_head
*list
;
57 list
= pnp_global
.next
;
59 list
= from
->global_list
.next
;
61 while (list
!= &pnp_global
) {
62 struct pnp_dev
*dev
= global_to_pnp_dev(list
);
63 if (compare_pnp_id(dev
->id
, id
)
64 || (memcmp(id
, any
, 7) == 0))
69 struct list_head
*list
;
71 list
= card
->devices
.next
;
73 list
= from
->card_list
.next
;
74 if (from
->card
!= card
) /* something is wrong */
77 while (list
!= &card
->devices
) {
78 struct pnp_dev
*dev
= card_to_pnp_dev(list
);
79 if (compare_pnp_id(dev
->id
, id
))
87 EXPORT_SYMBOL(pnp_find_card
);
88 EXPORT_SYMBOL(pnp_find_dev
);