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