| /* | |
| * Copyright (c) 2010 Red Hat Inc. | |
| * Author : Dave Airlie <[email protected]> | |
| * | |
| * Licensed under GPLv2 | |
| * | |
| * 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 { | |
| VGA_SWITCHEROO_IGD, | |
| VGA_SWITCHEROO_DIS, | |
| VGA_SWITCHEROO_MAX_CLIENTS, | |
| }; | |
| struct vga_switcheroo_handler { | |
| int (*switchto)(enum vga_switcheroo_client_id id); | |
| int (*power_state)(enum vga_switcheroo_client_id id, | |
| enum vga_switcheroo_state state); | |
| int (*init)(void); | |
| int (*get_client_id)(struct pci_dev *pdev); | |
| }; | |
| struct vga_switcheroo_client_ops { | |
| void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state); | |
| void (*reprobe)(struct pci_dev *dev); | |
| bool (*can_switch)(struct pci_dev *dev); | |
| }; | |
| #if defined(CONFIG_VGA_SWITCHEROO) | |
| void vga_switcheroo_unregister_client(struct pci_dev *dev); | |
| int vga_switcheroo_register_client(struct pci_dev *dev, | |
| const struct vga_switcheroo_client_ops *ops, | |
| bool driver_power_control); | |
| int vga_switcheroo_register_audio_client(struct pci_dev *pdev, | |
| const struct vga_switcheroo_client_ops *ops, | |
| int id, bool active); | |
| void vga_switcheroo_client_fb_set(struct pci_dev *dev, | |
| struct fb_info *info); | |
| int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler); | |
| void vga_switcheroo_unregister_handler(void); | |
| int vga_switcheroo_process_delayed_switch(void); | |
| int vga_switcheroo_get_client_state(struct pci_dev *dev); | |
| void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic); | |
| int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain); | |
| void vga_switcheroo_fini_domain_pm_ops(struct device *dev); | |
| int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain); | |
| #else | |
| static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {} | |
| static inline int vga_switcheroo_register_client(struct pci_dev *dev, | |
| const struct vga_switcheroo_client_ops *ops, bool driver_power_control) { return 0; } | |
| static inline void vga_switcheroo_client_fb_set(struct pci_dev *dev, struct fb_info *info) {} | |
| static inline int vga_switcheroo_register_handler(struct vga_switcheroo_handler *handler) { return 0; } | |
| static inline int vga_switcheroo_register_audio_client(struct pci_dev *pdev, | |
| const struct vga_switcheroo_client_ops *ops, | |
| 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; } | |
| static inline void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic) {} | |
| static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; } | |
| static inline void vga_switcheroo_fini_domain_pm_ops(struct device *dev) {} | |
| static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; } | |
| #endif | |
| #endif /* _LINUX_VGA_SWITCHEROO_H_ */ |