| #ifndef __BACKPORT_VGA_SWITCHEROO_H |
| #define __BACKPORT_VGA_SWITCHEROO_H |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34) |
| #include_next <linux/vga_switcheroo.h> |
| |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0) |
| /* |
| * This backports: |
| * |
| * From 26ec685ff9d9c16525d8ec4c97e52fcdb187b302 Mon Sep 17 00:00:00 2001 |
| * From: Takashi Iwai <tiwai@suse.de> |
| * Date: Fri, 11 May 2012 07:51:17 +0200 |
| * Subject: [PATCH] vga_switcheroo: Introduce struct vga_switcheroo_client_ops |
| * |
| */ |
| |
| 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); |
| }; |
| |
| /* Wrap around the old code and redefine vga_switcheroo_register_client() |
| * for older kernels < 3.5.0. |
| */ |
| static inline int compat_vga_switcheroo_register_client(struct pci_dev *dev, |
| const struct vga_switcheroo_client_ops *ops) { |
| |
| return vga_switcheroo_register_client(dev, |
| ops->set_gpu_state, |
| #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
| ops->reprobe, |
| #endif |
| ops->can_switch); |
| } |
| |
| #define vga_switcheroo_register_client(_dev, _ops) \ |
| compat_vga_switcheroo_register_client(_dev, _ops) |
| |
| #endif /* < 3.5 */ |
| |
| #endif /* >= 2.6.34 */ |
| #endif /* __BACKPORT_VGA_SWITCHEROO_H */ |
