1 #ifndef _ASM_LGUEST_DEVICE_H
2 #define _ASM_LGUEST_DEVICE_H
3 /* Everything you need to know about lguest devices. */
4 #include <linux/device.h>
5 #include <linux/lguest.h>
6 #include <linux/lguest_launcher.h>
9 /* Unique busid, and index into lguest_page->devices[] */
14 /* Driver can hang data off here. */
18 /* By convention, each device can use irq index+1 if it wants to. */
19 static inline int lgdev_irq(const struct lguest_device *dev)
21 return dev->index + 1;
24 /* dma args must not be vmalloced! */
25 void lguest_send_dma(unsigned long key, struct lguest_dma *dma);
26 int lguest_bind_dma(unsigned long key, struct lguest_dma *dmas,
27 unsigned int num, u8 irq);
28 void lguest_unbind_dma(unsigned long key, struct lguest_dma *dmas);
30 /* Map the virtual device space */
31 void *lguest_map(unsigned long phys_addr, unsigned long pages);
32 void lguest_unmap(void *);
34 struct lguest_driver {
38 int (*probe)(struct lguest_device *dev);
39 void (*remove)(struct lguest_device *dev);
41 struct device_driver drv;
44 extern int register_lguest_driver(struct lguest_driver *drv);
45 extern void unregister_lguest_driver(struct lguest_driver *drv);
47 extern struct lguest_device_desc *lguest_devices; /* Just past max_pfn */
48 #endif /* _ASM_LGUEST_DEVICE_H */