feat: gfxm: a layer provides user space access to low level interfacing of graphic...

[lunaix-os.git] / lunaix-os / hal / pci.c

diff --git a/lunaix-os/hal/pci.c b/lunaix-os/hal/pci.c
index 7a1967ed4b5d48d54057c1d6a837a8b772ed10bb..bc1e7cca7f307729e897261b18226bb53e8e75f6 100644 (file)
--- a/lunaix-os/hal/pci.c
+++ b/lunaix-os/hal/pci.c
@@ -304,6 +304,19 @@ __pci_bar_gonext(struct twimap* map)
     return 1;
 }
 
+static void
+__pci_read_binding(struct twimap* map)
+{
+    struct pci_device* pcidev = twimap_data(map, struct pci_device*);
+    // check if device binding has been initialized
+    struct device* dev = device_cast(&pcidev->dev);
+    if (!dev) {
+        return;
+    }
+
+    twimap_printf(map, "0x%x:0x%x", dev->ident.fn_grp, dev->ident.unique);
+}
+
 void
 pci_build_fsmapping()
 {
@@ -329,6 +342,9 @@ pci_build_fsmapping()
         map = twifs_mapping(pci_dev, pos, "class");
         map->read = __pci_read_class;
 
+        map = twifs_mapping(pci_dev, pos, "binding");
+        map->read = __pci_read_binding;
+
         map = twifs_mapping(pci_dev, pos, "io_bases");
         map->read = __pci_bar_read;
         map->go_next = __pci_bar_gonext;