2 * PCI Backend - Handles the virtual fields found on the capability lists
3 * in the configuration space.
5 * Author: Ryan Wilson <hap9@epoch.ncsc.mil>
8 #include <linux/kernel.h>
11 #include "conf_space.h"
12 #include "conf_space_capability.h"
14 static LIST_HEAD(capabilities);
16 static struct config_field caplist_header[] = {
18 .offset = PCI_CAP_LIST_ID,
19 .size = 2, /* encompass PCI_CAP_LIST_ID & PCI_CAP_LIST_NEXT */
20 .u.w.read = pciback_read_config_word,
28 static inline void register_capability(struct pciback_config_capability *cap)
30 list_add_tail(&cap->cap_list, &capabilities);
33 int pciback_config_capability_add_fields(struct pci_dev *dev)
36 struct pciback_config_capability *cap;
39 list_for_each_entry(cap, &capabilities, cap_list) {
40 cap_offset = pci_find_capability(dev, cap->capability);
42 dev_dbg(&dev->dev, "Found capability 0x%x at 0x%x\n",
43 cap->capability, cap_offset);
45 err = pciback_config_add_fields_offset(dev,
50 err = pciback_config_add_fields_offset(dev,
62 extern struct pciback_config_capability pciback_config_capability_vpd;
63 extern struct pciback_config_capability pciback_config_capability_pm;
65 int pciback_config_capability_init(void)
67 register_capability(&pciback_config_capability_vpd);
68 register_capability(&pciback_config_capability_pm);