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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 | ||
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), | |
8d608aa6 | 36 | void (*reprobe)(struct pci_dev *dev), |
6a9ee8af DA |
37 | bool (*can_switch)(struct pci_dev *dev)); |
38 | ||
39 | void vga_switcheroo_client_fb_set(struct pci_dev *dev, | |
40 | struct fb_info *info); | |
41 | ||
42 | int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler); | |
43 | void vga_switcheroo_unregister_handler(void); | |
44 | ||
45 | int vga_switcheroo_process_delayed_switch(void); | |
46 | ||
47 | #else | |
48 | ||
49 | static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {} | |
50 | static inline int vga_switcheroo_register_client(struct pci_dev *dev, | |
51 | void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state), | |
af5dd83b | 52 | void (*reprobe)(struct pci_dev *dev), |
6a9ee8af DA |
53 | bool (*can_switch)(struct pci_dev *dev)) { return 0; } |
54 | static inline void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_info *info) {} | |
55 | static inline int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler) { return 0; } | |
56 | static inline void vga_switcheroo_unregister_handler(void) {} | |
57 | static inline int vga_switcheroo_process_delayed_switch(void) { return 0; } | |
58 | ||
59 | #endif |