diff options
| -rw-r--r-- | src/device/device_romstage.c | 24 | ||||
| -rw-r--r-- | src/include/device/device.h | 2 |
2 files changed, 26 insertions, 0 deletions
diff --git a/src/device/device_romstage.c b/src/device/device_romstage.c index 591cf886ef..6dcf6d2ad3 100644 --- a/src/device/device_romstage.c +++ b/src/device/device_romstage.c @@ -55,6 +55,30 @@ ROMSTAGE_CONST struct device *dev_find_slot(unsigned int bus, } /** + * Given a device pointer, find the next PCI device. + * + * @param previous_dev A pointer to a PCI device structure. + * @return Pointer to the next device structure (if found), 0 otherwise. + */ +ROMSTAGE_CONST struct device *dev_find_next_pci_device( + ROMSTAGE_CONST struct device *previous_dev) +{ + ROMSTAGE_CONST struct device *dev, *result; + + if (previous_dev == NULL) + previous_dev = all_devices; + + result = 0; + for (dev = previous_dev->next; dev; dev = dev->next) { + if (dev->path.type == DEVICE_PATH_PCI) { + result = dev; + break; + } + } + return result; +} + +/** * Given an SMBus bus and a device number, find the device structure. * * @param bus The bus number. diff --git a/src/include/device/device.h b/src/include/device/device.h index a4ef456add..dcd93f687f 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -236,6 +236,8 @@ u32 find_pci_tolm(struct bus *bus); ROMSTAGE_CONST struct device * dev_find_slot (unsigned int bus, unsigned int devfn); +ROMSTAGE_CONST struct device *dev_find_next_pci_device( + ROMSTAGE_CONST struct device *previous_dev); ROMSTAGE_CONST struct device * dev_find_slot_on_smbus (unsigned int bus, unsigned int addr); |