summaryrefslogtreecommitdiff
path: root/src/device
diff options
context:
space:
mode:
Diffstat (limited to 'src/device')
-rw-r--r--src/device/device_const.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/device/device_const.c b/src/device/device_const.c
index 90b68679e9..ec128e877d 100644
--- a/src/device/device_const.c
+++ b/src/device/device_const.c
@@ -22,6 +22,7 @@
#include <device/device.h>
#include <device/path.h>
#include <device/pci.h>
+#include <device/pci_def.h>
#include <device/resource.h>
/** Linked list of ALL devices */
@@ -172,6 +173,31 @@ DEVTREE_CONST struct device *find_dev_path(
return child;
}
+DEVTREE_CONST struct device *pcidev_path_behind(
+ const struct bus *parent, pci_devfn_t devfn)
+{
+ const struct device_path path = {
+ .type = DEVICE_PATH_PCI,
+ .pci.devfn = devfn,
+ };
+ return find_dev_path(parent, &path);
+}
+
+DEVTREE_CONST struct device *pcidev_path_on_root(pci_devfn_t devfn)
+{
+ DEVTREE_CONST struct device *pci_domain;
+
+ pci_domain = dev_find_path(NULL, DEVICE_PATH_DOMAIN);
+ if (!pci_domain)
+ return NULL;
+ return pcidev_path_behind(pci_domain->link_list, devfn);
+}
+
+DEVTREE_CONST struct device *pcidev_on_root(uint8_t dev, uint8_t fn)
+{
+ return pcidev_path_on_root(PCI_DEVFN(dev, fn));
+}
+
/**
* Given an SMBus bus and a device number, find the device structure.
*