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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | /* |
3 | * Routines for handling backlight control on PowerBooks | |
4 | * | |
508c4022 | 5 | * For now, implementation resides in |
5474c120 | 6 | * arch/powerpc/platforms/powermac/backlight.c |
1da177e4 LT |
7 | * |
8 | */ | |
508c4022 PM |
9 | #ifndef __ASM_POWERPC_BACKLIGHT_H |
10 | #define __ASM_POWERPC_BACKLIGHT_H | |
1da177e4 | 11 | #ifdef __KERNEL__ |
1da177e4 | 12 | |
5474c120 MH |
13 | #include <linux/fb.h> |
14 | #include <linux/mutex.h> | |
1da177e4 | 15 | |
5474c120 MH |
16 | /* For locking instructions, see the implementation file */ |
17 | extern struct backlight_device *pmac_backlight; | |
18 | extern struct mutex pmac_backlight_mutex; | |
1da177e4 | 19 | |
5474c120 | 20 | extern int pmac_backlight_curve_lookup(struct fb_info *info, int value); |
1da177e4 | 21 | |
5474c120 MH |
22 | extern int pmac_has_backlight_type(const char *type); |
23 | ||
e01af038 MH |
24 | extern void pmac_backlight_key(int direction); |
25 | static inline void pmac_backlight_key_up(void) | |
26 | { | |
27 | pmac_backlight_key(0); | |
28 | } | |
29 | static inline void pmac_backlight_key_down(void) | |
30 | { | |
31 | pmac_backlight_key(1); | |
32 | } | |
5474c120 | 33 | |
4b755999 | 34 | extern void pmac_backlight_set_legacy_brightness_pmu(int brightness); |
5474c120 MH |
35 | extern int pmac_backlight_set_legacy_brightness(int brightness); |
36 | extern int pmac_backlight_get_legacy_brightness(void); | |
1da177e4 | 37 | |
4b755999 MH |
38 | extern void pmac_backlight_enable(void); |
39 | extern void pmac_backlight_disable(void); | |
40 | ||
1da177e4 | 41 | #endif /* __KERNEL__ */ |
508c4022 | 42 | #endif |