seabios: pci: introduce helper function to find device from table and initialize it.

introduce helper function to find device from table and initialize it.
pci_find_init_device(). This will be used later.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>

2 files changed, 13 insertions, 0 deletions

diff --git a/src/pci.c b/src/pci.c
index c54b084c..611d0e22 100644
--- a/src/pci.c
+++ b/src/pci.c
@@ -203,3 +203,15 @@ int pci_init_device(const struct pci_device_id *ids, u16 bdf, void *arg)
     }
     return -1;
 }
+
+int pci_find_init_device(const struct pci_device_id *ids, void *arg)
+{
+    int bdf, max;
+
+    foreachpci(bdf, max) {
+        if (pci_init_device(ids, bdf, arg) == 0) {
+            return bdf;
+        }
+    }
+    return -1;
+}
diff --git a/src/pci.h b/src/pci.h
index fa6a32d8..9c3108c8 100644
--- a/src/pci.h
+++ b/src/pci.h
@@ -93,6 +93,7 @@ struct pci_device_id {
     }
 
 int pci_init_device(const struct pci_device_id *table, u16 bdf, void *arg);
+int pci_find_init_device(const struct pci_device_id *ids, void *arg);
 
 // pirtable.c
 void create_pirtable(void);