projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 07ad157f RR |
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> | |
| 7 | ||
| 8 | struct lguest_device { | |
| 9 | /* Unique busid, and index into lguest_page->devices[] */ | |
| 10 | unsigned int index; | |
| 11 | ||
| 12 | struct device dev; | |
| 13 | ||
| 14 | /* Driver can hang data off here. */ | |
| 15 | void *private; | |
| 16 | }; | |
| 17 | ||
| 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) | |
| 20 | { | |
| 21 | return dev->index + 1; | |
| 22 | } | |
| 23 | ||
| 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); | |
| 29 | ||
| 30 | /* Map the virtual device space */ | |
| 31 | void *lguest_map(unsigned long phys_addr, unsigned long pages); | |
| 32 | void lguest_unmap(void *); | |
| 33 | ||
| 34 | struct lguest_driver { | |
| 35 | const char *name; | |
| 36 | struct module *owner; | |
| 37 | u16 device_type; | |
| 38 | int (*probe)(struct lguest_device *dev); | |
| 39 | void (*remove)(struct lguest_device *dev); | |
| 40 | ||
| 41 | struct device_driver drv; | |
| 42 | }; | |
| 43 | ||
| 44 | extern int register_lguest_driver(struct lguest_driver *drv); | |
| 45 | extern void unregister_lguest_driver(struct lguest_driver *drv); | |
| 46 | ||
| 47 | extern struct lguest_device_desc *lguest_devices; /* Just past max_pfn */ | |
| 48 | #endif /* _ASM_LGUEST_DEVICE_H */ |