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1 | /* |
2 | * Copyright (c) 2010 Red Hat Inc. |
3 | * Author : Dave Airlie <airlied@redhat.com> |
4 | * |
5 | * Licensed under GPLv2 |
6 | * |
7 | * vga_switcheroo.h - Support for laptop with dual GPU using one set of outputs |
8 | */ |
9 | |
10 | #include <linux/fb.h> |
11 | |
12 | enum vga_switcheroo_state { |
13 | VGA_SWITCHEROO_OFF, |
14 | VGA_SWITCHEROO_ON, |
15 | }; |
16 | |
17 | enum vga_switcheroo_client_id { |
18 | VGA_SWITCHEROO_IGD, |
19 | VGA_SWITCHEROO_DIS, |
20 | VGA_SWITCHEROO_MAX_CLIENTS, |
21 | }; |
22 | |
23 | struct vga_switcheroo_handler { |
24 | int (*switchto)(enum vga_switcheroo_client_id id); |
25 | int (*power_state)(enum vga_switcheroo_client_id id, |
26 | enum vga_switcheroo_state state); |
27 | int (*init)(void); |
28 | int (*get_client_id)(struct pci_dev *pdev); |
29 | }; |
30 | |
31 | |
32 | #if defined(CONFIG_VGA_SWITCHEROO) |
33 | void vga_switcheroo_unregister_client(struct pci_dev *dev); |
34 | int vga_switcheroo_register_client(struct pci_dev *dev, |
35 | void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state), |
36 | bool (*can_switch)(struct pci_dev *dev)); |
37 | |
38 | void vga_switcheroo_client_fb_set(struct pci_dev *dev, |
39 | struct fb_info *info); |
40 | |
41 | int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler); |
42 | void vga_switcheroo_unregister_handler(void); |
43 | |
44 | int vga_switcheroo_process_delayed_switch(void); |
45 | |
46 | #else |
47 | |
48 | static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {} |
49 | static inline int vga_switcheroo_register_client(struct pci_dev *dev, |
50 | void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state), |
51 | bool (*can_switch)(struct pci_dev *dev)) { return 0; } |
52 | static inline void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_info *info) {} |
53 | static inline int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler) { return 0; } |
54 | static inline void vga_switcheroo_unregister_handler(void) {} |
55 | static inline int vga_switcheroo_process_delayed_switch(void) { return 0; } |
56 | |
57 | #endif |
58 |
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od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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