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);