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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/powerpc/include/asm/backlight.h | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/powerpc/include/asm/backlight.h')
| -rw-r--r-- | arch/powerpc/include/asm/backlight.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/backlight.h b/arch/powerpc/include/asm/backlight.h new file mode 100644 index 000000000..1b5eab62e --- /dev/null +++ b/arch/powerpc/include/asm/backlight.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Routines for handling backlight control on PowerBooks + * + * For now, implementation resides in + * arch/powerpc/platforms/powermac/backlight.c + * + */ +#ifndef __ASM_POWERPC_BACKLIGHT_H +#define __ASM_POWERPC_BACKLIGHT_H +#ifdef __KERNEL__ + +#include <linux/fb.h> +#include <linux/mutex.h> + +/* For locking instructions, see the implementation file */ +extern struct backlight_device *pmac_backlight; +extern struct mutex pmac_backlight_mutex; + +extern int pmac_backlight_curve_lookup(struct fb_info *info, int value); + +extern int pmac_has_backlight_type(const char *type); + +extern void pmac_backlight_key(int direction); +static inline void pmac_backlight_key_up(void) +{ + pmac_backlight_key(0); +} +static inline void pmac_backlight_key_down(void) +{ + pmac_backlight_key(1); +} + +extern void pmac_backlight_set_legacy_brightness_pmu(int brightness); +extern int pmac_backlight_set_legacy_brightness(int brightness); +extern int pmac_backlight_get_legacy_brightness(void); + +extern void pmac_backlight_enable(void); +extern void pmac_backlight_disable(void); + +#endif /* __KERNEL__ */ +#endif |