projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 |