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/* * Copyright (c) 2010 Red Hat Inc. * Author : Dave Airlie <airlied@redhat.com> * * 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_ */