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db1a0ae214
Currently, every backlight interface created by Nouveau uses the same name, nv_backlight. This leads to a sysfs warning as it tries to create an already existing folder. This patch adds a incremented number to the name, but keeps the initial name as nv_backlight, to avoid possibly breaking userspace; the second interface will be named nv_backlight1, and so on. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=86539 v2: * Switch to using ida for generating unique IDs, as suggested by Ilia Mirkin; * Allocate backlight name on the stack, as suggested by Ilia Mirkin; * Move `nouveau_get_backlight_name()` to avoid forward declaration, as suggested by Ilia Mirkin; * Fix reference to bug report formatting, as reported by Nick Tenney. v3: * Define a macro for the size of the backlight name, to avoid defining it multiple times; * Use snprintf in place of sprintf. v4: * Do not create similarly named interfaces when reaching the maximum amount of unique names, but fail instead, as pointed out by Lukas Wunner Signed-off-by: Pierre Moreau <pierre.morrow@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
#ifndef __NOUVEAU_DISPLAY_H__
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#define __NOUVEAU_DISPLAY_H__
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#include <subdev/mmu.h>
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#include "nouveau_drv.h"
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struct nouveau_framebuffer {
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struct drm_framebuffer base;
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struct nouveau_bo *nvbo;
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struct nvkm_vma vma;
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u32 r_handle;
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u32 r_format;
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u32 r_pitch;
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struct nvif_object h_base[4];
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struct nvif_object h_core;
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};
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static inline struct nouveau_framebuffer *
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nouveau_framebuffer(struct drm_framebuffer *fb)
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{
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return container_of(fb, struct nouveau_framebuffer, base);
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}
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int nouveau_framebuffer_new(struct drm_device *,
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const struct drm_mode_fb_cmd2 *,
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struct nouveau_bo *, struct nouveau_framebuffer **);
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struct nouveau_page_flip_state {
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struct list_head head;
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struct drm_pending_vblank_event *event;
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struct drm_crtc *crtc;
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int bpp, pitch;
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u64 offset;
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};
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struct nouveau_display {
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void *priv;
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void (*dtor)(struct drm_device *);
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int (*init)(struct drm_device *);
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void (*fini)(struct drm_device *);
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struct nvif_object disp;
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struct drm_property *dithering_mode;
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struct drm_property *dithering_depth;
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struct drm_property *underscan_property;
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struct drm_property *underscan_hborder_property;
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struct drm_property *underscan_vborder_property;
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/* not really hue and saturation: */
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struct drm_property *vibrant_hue_property;
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struct drm_property *color_vibrance_property;
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struct drm_atomic_state *suspend;
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};
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static inline struct nouveau_display *
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nouveau_display(struct drm_device *dev)
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{
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return nouveau_drm(dev)->display;
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}
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int nouveau_display_create(struct drm_device *dev);
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void nouveau_display_destroy(struct drm_device *dev);
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int nouveau_display_init(struct drm_device *dev);
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void nouveau_display_fini(struct drm_device *dev, bool suspend);
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int nouveau_display_suspend(struct drm_device *dev, bool runtime);
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void nouveau_display_resume(struct drm_device *dev, bool runtime);
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int nouveau_display_vblank_enable(struct drm_device *, unsigned int);
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void nouveau_display_vblank_disable(struct drm_device *, unsigned int);
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int nouveau_display_scanoutpos(struct drm_device *, unsigned int,
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unsigned int, int *, int *, ktime_t *,
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ktime_t *, const struct drm_display_mode *);
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int nouveau_display_vblstamp(struct drm_device *, unsigned int, int *,
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struct timeval *, unsigned);
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int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
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struct drm_pending_vblank_event *event,
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uint32_t page_flip_flags);
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int nouveau_finish_page_flip(struct nouveau_channel *,
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struct nouveau_page_flip_state *);
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int nouveau_display_dumb_create(struct drm_file *, struct drm_device *,
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struct drm_mode_create_dumb *args);
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int nouveau_display_dumb_map_offset(struct drm_file *, struct drm_device *,
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u32 handle, u64 *offset);
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void nouveau_hdmi_mode_set(struct drm_encoder *, struct drm_display_mode *);
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int nouveau_crtc_set_config(struct drm_mode_set *set);
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#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
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extern int nouveau_backlight_init(struct drm_device *);
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extern void nouveau_backlight_exit(struct drm_device *);
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extern void nouveau_backlight_ctor(void);
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extern void nouveau_backlight_dtor(void);
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#else
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static inline int
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nouveau_backlight_init(struct drm_device *dev)
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{
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return 0;
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}
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static inline void
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nouveau_backlight_exit(struct drm_device *dev) {
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}
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static inline void
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nouveau_backlight_ctor(void) {
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}
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static inline void
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nouveau_backlight_dtor(void) {
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}
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#endif
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struct drm_framebuffer *
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nouveau_user_framebuffer_create(struct drm_device *, struct drm_file *,
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const struct drm_mode_fb_cmd2 *);
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#endif
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