kernel-ark/include/linux/vga_switcheroo.h
Dave Airlie 8edb381d67 vga_switcheroo: fix build on platforms with no ACPI
radeon was always including the atpx code unnecessarily, also core
switcheroo was including acpi headers.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-03-01 22:21:58 +11:00

58 lines
1.8 KiB
C

/*
* 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
*/
#include <linux/fb.h>
enum vga_switcheroo_state {
VGA_SWITCHEROO_OFF,
VGA_SWITCHEROO_ON,
};
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);
};
#if defined(CONFIG_VGA_SWITCHEROO)
void vga_switcheroo_unregister_client(struct pci_dev *dev);
int vga_switcheroo_register_client(struct pci_dev *dev,
void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state),
bool (*can_switch)(struct pci_dev *dev));
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);
#else
static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {}
static inline int vga_switcheroo_register_client(struct pci_dev *dev,
void (*set_gpu_state)(struct pci_dev *dev, enum vga_switcheroo_state),
bool (*can_switch)(struct pci_dev *dev)) { 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 void vga_switcheroo_unregister_handler(void) {}
static inline int vga_switcheroo_process_delayed_switch(void) { return 0; }
#endif