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6a9ee8af DA |
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 | ||
d3decf3a OÇ |
10 | #ifndef _LINUX_VGA_SWITCHEROO_H_ |
11 | #define _LINUX_VGA_SWITCHEROO_H_ | |
12 | ||
6a9ee8af DA |
13 | #include <linux/fb.h> |
14 | ||
f8fee8f5 RD |
15 | struct pci_dev; |
16 | ||
6a9ee8af DA |
17 | enum vga_switcheroo_state { |
18 | VGA_SWITCHEROO_OFF, | |
19 | VGA_SWITCHEROO_ON, | |
c8e9cf7b TI |
20 | /* below are referred only from vga_switcheroo_get_client_state() */ |
21 | VGA_SWITCHEROO_INIT, | |
22 | VGA_SWITCHEROO_NOT_FOUND, | |
6a9ee8af DA |
23 | }; |
24 | ||
25 | enum vga_switcheroo_client_id { | |
26 | VGA_SWITCHEROO_IGD, | |
27 | VGA_SWITCHEROO_DIS, | |
28 | VGA_SWITCHEROO_MAX_CLIENTS, | |
29 | }; | |
30 | ||
31 | struct vga_switcheroo_handler { | |
32 | int (*switchto)(enum vga_switcheroo_client_id id); | |
33 | int (*power_state)(enum vga_switcheroo_client_id id, | |
34 | enum vga_switcheroo_state state); | |
35 | int (*init)(void); | |
36 | int (*get_client_id)(struct pci_dev *pdev); | |
37 | }; | |
38 | ||
26ec685f TI |
39 | struct vga_switcheroo_client_ops { |
40 | void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state); | |
41 | void (*reprobe)(struct pci_dev *dev); | |
42 | bool (*can_switch)(struct pci_dev *dev); | |
43 | }; | |
6a9ee8af DA |
44 | |
45 | #if defined(CONFIG_VGA_SWITCHEROO) | |
46 | void vga_switcheroo_unregister_client(struct pci_dev *dev); | |
47 | int vga_switcheroo_register_client(struct pci_dev *dev, | |
26ec685f | 48 | const struct vga_switcheroo_client_ops *ops); |
3e9e63db TI |
49 | int vga_switcheroo_register_audio_client(struct pci_dev *pdev, |
50 | const struct vga_switcheroo_client_ops *ops, | |
51 | int id, bool active); | |
6a9ee8af DA |
52 | |
53 | void vga_switcheroo_client_fb_set(struct pci_dev *dev, | |
54 | struct fb_info *info); | |
55 | ||
56 | int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler); | |
57 | void vga_switcheroo_unregister_handler(void); | |
58 | ||
59 | int vga_switcheroo_process_delayed_switch(void); | |
60 | ||
c8e9cf7b TI |
61 | int vga_switcheroo_get_client_state(struct pci_dev *dev); |
62 | ||
6a9ee8af DA |
63 | #else |
64 | ||
65 | static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {} | |
66 | static inline int vga_switcheroo_register_client(struct pci_dev *dev, | |
26ec685f | 67 | const struct vga_switcheroo_client_ops *ops) { return 0; } |
6a9ee8af DA |
68 | static inline void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_info *info) {} |
69 | static inline int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler) { return 0; } | |
3e9e63db TI |
70 | static inline int vga_switcheroo_register_audio_client(struct pci_dev *pdev, |
71 | const struct vga_switcheroo_client_ops *ops, | |
72 | int id, bool active) { return 0; } | |
6a9ee8af DA |
73 | static inline void vga_switcheroo_unregister_handler(void) {} |
74 | static inline int vga_switcheroo_process_delayed_switch(void) { return 0; } | |
505cff00 | 75 | static inline int vga_switcheroo_get_client_state(struct pci_dev *dev) { return VGA_SWITCHEROO_ON; } |
c8e9cf7b | 76 | |
6a9ee8af DA |
77 | |
78 | #endif | |
d3decf3a | 79 | #endif /* _LINUX_VGA_SWITCHEROO_H_ */ |