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; }