-PCI scanning

[pintos-anon] / src / devices / pci.h

diff --git a/src/devices/pci.h b/src/devices/pci.h
index 58fe4ea3cb22f43e58458f7c9bfb2b624d1c4fcd..9a7e4da99181a8c0d174b515473a5765d9dedc87 100755 (executable)
--- a/src/devices/pci.h
+++ b/src/devices/pci.h
@@ -1 +1,35 @@
-void pci_scan (void);
+#include "lib/kernel/list.h"
+
+struct pci_dev {
+  struct list_elem elem;
+
+  /* <Bus, Device, Function> logically identify a unique PCI device */
+  uint8_t bus_id;
+  uint8_t devfn;
+
+  /* Vendor and Device ID */
+  uint16_t ven_id;
+  uint16_t dev_id;
+
+  /* Class code */
+  uint8_t base_class;
+  uint8_t sub_class;
+  uint8_t interface;
+};
+
+#define PCI_BAD_DEVICE 0xffff
+
+/* PCI-to-PCI bridge related numbers */
+#define PCI_BRIDGE_BASE_CLASS 0x06
+#define PCI_BRIDGE_SUB_CLASS 0x04
+#define PCI_BRIDGE_REG_SBUS 0x19
+#define PCI_BRIDGE_HEADER_TYPE 0x01
+
+/* Locations of registers in the typical configuration space */
+#define PCI_REG_CLASS_INTERFACE 0x09
+#define PCI_REG_CLASS_SUB 0x0a
+#define PCI_REG_CLASS_BASE 0x0b
+#define PCI_REG_HEADER_TYPE 0x0e
+
+void pci_init (void);
+void pci_dump (void);