diff options
| author | Matthew Garrett <mjg59@srcf.ucam.org> | 2009-02-18 02:08:25 +0000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2009-02-18 13:48:33 +1000 |
| commit | 96ce587e8b915afeac38e5f547ba95803c1780f2 (patch) | |
| tree | acd11f89b3ec7877a9c54a708a65ad2b56c9c334 /shared-core/nouveau_drv.h | |
| parent | 0054e14793e585ec0d8e95e3d7b82cbf1a684af8 (diff) | |
nouveau: Add in-kernel backlight control support
Several nvidia-based systems don't support backlight control via the
standard ACPI control mechanisms. Instead, it's necessary for the driver
to modify the backlight control registers directly. This patch adds
support for determining whether the registers appear to be in use, and
if so registers a kernel backlight device to control them. The backlight
can then be controlled via existing userspace tools.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'shared-core/nouveau_drv.h')
| -rw-r--r-- | shared-core/nouveau_drv.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/shared-core/nouveau_drv.h b/shared-core/nouveau_drv.h index 158d6fde..1cd10bf9 100644 --- a/shared-core/nouveau_drv.h +++ b/shared-core/nouveau_drv.h @@ -318,6 +318,7 @@ struct drm_nouveau_private { uint32_t *ramin_copy; uint64_t ramin_size; } susres; + struct backlight_device *backlight; }; #define NOUVEAU_CHECK_INITIALISED_WITH_RETURN do { \ @@ -468,6 +469,10 @@ extern int nouveau_dma_channel_init(struct drm_device *); extern void nouveau_dma_channel_takedown(struct drm_device *); extern int nouveau_dma_wait(struct drm_device *, int size); +/* nouveau_backlight.c */ +extern int nouveau_backlight_init(struct drm_device *); +extern void nouveau_backlight_exit(struct drm_device *); + /* nv04_fb.c */ extern int nv04_fb_init(struct drm_device *); extern void nv04_fb_takedown(struct drm_device *); |