Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / include / ipxe / device.h

diff --git a/qemu/roms/ipxe/src/include/ipxe/device.h b/qemu/roms/ipxe/src/include/ipxe/device.h
new file mode 100644 (file)
index 0000000..7202a69
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/ipxe/device.h
@@ -0,0 +1,148 @@
+#ifndef _IPXE_DEVICE_H
+#define _IPXE_DEVICE_H
+
+/**
+ * @file
+ *
+ * Device model
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/list.h>
+#include <ipxe/tables.h>
+
+struct interface;
+
+/** A hardware device description */
+struct device_description {
+       /** Bus type
+        *
+        * This must be a BUS_TYPE_XXX constant.
+        */
+       unsigned int bus_type;
+       /** Location
+        *
+        * The interpretation of this field is bus-type-specific.
+        */
+       unsigned int location;
+       /** Vendor ID */
+       unsigned int vendor;
+       /** Device ID */
+       unsigned int device;
+       /** Device class */
+       unsigned long class;
+       /** I/O address */
+       unsigned long ioaddr;
+       /** IRQ */
+       unsigned int irq;
+};
+
+/** PCI bus type */
+#define BUS_TYPE_PCI 1
+
+/** ISAPnP bus type */
+#define BUS_TYPE_ISAPNP 2
+
+/** EISA bus type */
+#define BUS_TYPE_EISA 3
+
+/** MCA bus type */
+#define BUS_TYPE_MCA 4
+
+/** ISA bus type */
+#define BUS_TYPE_ISA 5
+
+/** TAP bus type */
+#define BUS_TYPE_TAP 6
+
+/** EFI bus type */
+#define BUS_TYPE_EFI 7
+
+/** Xen bus type */
+#define BUS_TYPE_XEN 8
+
+/** A hardware device */
+struct device {
+       /** Name */
+       char name[16];
+       /** Driver name */
+       const char *driver_name;
+       /** Device description */
+       struct device_description desc;
+       /** Devices on the same bus */
+       struct list_head siblings;
+       /** Devices attached to this device */
+       struct list_head children;
+       /** Bus device */
+       struct device *parent;
+};
+
+/**
+ * A root device
+ *
+ * Root devices are system buses such as PCI, EISA, etc.
+ *
+ */
+struct root_device {
+       /** Device chain
+        *
+        * A root device has a NULL parent field.
+        */
+       struct device dev;
+       /** Root device driver */
+       struct root_driver *driver;
+};
+
+/** A root device driver */
+struct root_driver {
+       /**
+        * Add root device
+        *
+        * @v rootdev   Root device
+        * @ret rc      Return status code
+        *
+        * Called from probe_devices() for all root devices in the build.
+        */
+       int ( * probe ) ( struct root_device *rootdev );
+       /**
+        * Remove root device
+        *
+        * @v rootdev   Root device
+        *
+        * Called from remove_device() for all successfully-probed
+        * root devices.
+        */
+       void ( * remove ) ( struct root_device *rootdev );
+};
+
+/** Root device table */
+#define ROOT_DEVICES __table ( struct root_device, "root_devices" )
+
+/** Declare a root device */
+#define __root_device __table_entry ( ROOT_DEVICES, 01 )
+
+extern int device_keep_count;
+
+/**
+ * Prevent devices from being removed on shutdown
+ *
+ */
+static inline void devices_get ( void ) {
+       device_keep_count++;
+}
+
+/**
+ * Allow devices to be removed on shutdown
+ *
+ */
+static inline void devices_put ( void ) {
+       device_keep_count--;
+}
+
+extern struct device * identify_device ( struct interface *intf );
+#define identify_device_TYPE( object_type ) \
+       typeof ( struct device * ( object_type ) )
+
+#endif /* _IPXE_DEVICE_H */