diff options
Diffstat (limited to 'include/linux/vga_switcheroo.h')
| -rw-r--r-- | include/linux/vga_switcheroo.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h index b455c7c212e..ddb419cf453 100644 --- a/include/linux/vga_switcheroo.h +++ b/include/linux/vga_switcheroo.h @@ -7,11 +7,19 @@ * vga_switcheroo.h - Support for laptop with dual GPU using one set of outputs */ +#ifndef _LINUX_VGA_SWITCHEROO_H_ +#define _LINUX_VGA_SWITCHEROO_H_ + #include <linux/fb.h> +struct pci_dev; + enum vga_switcheroo_state { VGA_SWITCHEROO_OFF, VGA_SWITCHEROO_ON, + /* below are referred only from vga_switcheroo_get_client_state() */ + VGA_SWITCHEROO_INIT, + VGA_SWITCHEROO_NOT_FOUND, }; enum vga_switcheroo_client_id { @@ -50,6 +58,8 @@ void vga_switcheroo_unregister_handler(void); int vga_switcheroo_process_delayed_switch(void); +int vga_switcheroo_get_client_state(struct pci_dev *dev); + #else static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {} @@ -62,5 +72,8 @@ static inline int vga_switcheroo_register_audio_client(struct pci_dev *pdev, int id, bool active) { return 0; } static inline void vga_switcheroo_unregister_handler(void) {} static inline int vga_switcheroo_process_delayed_switch(void) { return 0; } +static inline int vga_switcheroo_get_client_state(struct pci_dev *dev) { return VGA_SWITCHEROO_ON; } + #endif +#endif /* _LINUX_VGA_SWITCHEROO_H_ */ |