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
10 #include <acpi/acpi.h>
13 enum vga_switcheroo_state {
18 enum vga_switcheroo_client_id {
21 VGA_SWITCHEROO_MAX_CLIENTS,
24 struct vga_switcheroo_handler {
25 int (*switchto)(enum vga_switcheroo_client_id id);
26 int (*power_state)(enum vga_switcheroo_client_id id,
27 enum vga_switcheroo_state state);
29 int (*get_client_id)(struct pci_dev *pdev);
33 #if defined(CONFIG_VGA_SWITCHEROO)
34 void vga_switcheroo_unregister_client(struct pci_dev *dev);
35 int vga_switcheroo_register_client(struct pci_dev *dev,
36 void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state),
37 bool (*can_switch)(struct pci_dev *dev));
39 void vga_switcheroo_client_fb_set(struct pci_dev *dev,
40 struct fb_info *info);
42 int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler);
43 void vga_switcheroo_unregister_handler(void);
45 int vga_switcheroo_process_delayed_switch(void);
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),
52 bool (*can_switch)(struct pci_dev *dev)) { return 0; }
53 static inline void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_info *info) {}
54 static inline int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler) { return 0; }
55 static inline void vga_switcheroo_unregister_handler(void) {}
56 static inline int vga_switcheroo_process_delayed_switch(void) { return 0; }