2 * Copyright (c) 2010 Red Hat Inc.
3 * Author : Dave Airlie <airlied@redhat.com>
7 * vga_switcheroo.h - Support for laptop with dual GPU using one set of outputs
12 enum vga_switcheroo_state {
17 enum vga_switcheroo_client_id {
20 VGA_SWITCHEROO_MAX_CLIENTS,
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);
28 int (*get_client_id)(struct pci_dev *pdev);
31 struct vga_switcheroo_client_ops {
32 void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state);
33 void (*reprobe)(struct pci_dev *dev);
34 bool (*can_switch)(struct pci_dev *dev);
37 #if defined(CONFIG_VGA_SWITCHEROO)
38 void vga_switcheroo_unregister_client(struct pci_dev *dev);
39 int vga_switcheroo_register_client(struct pci_dev *dev,
40 const struct vga_switcheroo_client_ops *ops);
41 int vga_switcheroo_register_audio_client(struct pci_dev *pdev,
42 const struct vga_switcheroo_client_ops *ops,
45 void vga_switcheroo_client_fb_set(struct pci_dev *dev,
46 struct fb_info *info);
48 int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler);
49 void vga_switcheroo_unregister_handler(void);
51 int vga_switcheroo_process_delayed_switch(void);
55 static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {}
56 static inline int vga_switcheroo_register_client(struct pci_dev *dev,
57 const struct vga_switcheroo_client_ops *ops) { return 0; }
58 static inline void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_info *info) {}
59 static inline int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler) { return 0; }
60 static inline int vga_switcheroo_register_audio_client(struct pci_dev *pdev,
61 const struct vga_switcheroo_client_ops *ops,
62 int id, bool active) { return 0; }
63 static inline void vga_switcheroo_unregister_handler(void) {}
64 static inline int vga_switcheroo_process_delayed_switch(void) { return 0; }