linux/drivers/gpu/drm/nouveau/dispnv50/crc.h

/* SPDX-License-Identifier: MIT */
#ifndef __NV50_CRC_H__
#define __NV50_CRC_H__

#include <linux/mutex.h>
#include <drm/drm_crtc.h>
#include <drm/drm_vblank_work.h>

#include <nvif/mem.h>
#include <nvkm/subdev/bios.h>
#include "nouveau_encoder.h"

struct nv50_atom;
struct nv50_disp;
struct nv50_head;

#if IS_ENABLED(CONFIG_DEBUG_FS)
enum nv50_crc_source { … };

/* RG -> SF (DP only)
 *    -> SOR
 *    -> PIOR
 *    -> DAC
 */
enum nv50_crc_source_type { … };

struct nv50_crc_notifier_ctx { … };

struct nv50_crc_atom { … };

struct nv50_crc_func { … };

struct nv50_crc { … };

void nv50_crc_init(struct drm_device *dev);
int nv50_head_crc_late_register(struct nv50_head *);
void nv50_crc_handle_vblank(struct nv50_head *head);

int nv50_crc_verify_source(struct drm_crtc *, const char *, size_t *);
const char *const *nv50_crc_get_sources(struct drm_crtc *, size_t *);
int nv50_crc_set_source(struct drm_crtc *, const char *);

int nv50_crc_atomic_check_head(struct nv50_head *, struct nv50_head_atom *,
			       struct nv50_head_atom *);
void nv50_crc_atomic_check_outp(struct nv50_atom *atom);
void nv50_crc_atomic_stop_reporting(struct drm_atomic_state *);
void nv50_crc_atomic_init_notifier_contexts(struct drm_atomic_state *);
void nv50_crc_atomic_release_notifier_contexts(struct drm_atomic_state *);
void nv50_crc_atomic_start_reporting(struct drm_atomic_state *);
void nv50_crc_atomic_set(struct nv50_head *, struct nv50_head_atom *);
void nv50_crc_atomic_clr(struct nv50_head *);

extern const struct nv50_crc_func crc907d;
extern const struct nv50_crc_func crcc37d;
extern const struct nv50_crc_func crcc57d;

#else /* IS_ENABLED(CONFIG_DEBUG_FS) */
struct nv50_crc {};
struct nv50_crc_func {};
struct nv50_crc_atom {};

#define nv50_crc_verify_source …
#define nv50_crc_get_sources …
#define nv50_crc_set_source …

static inline void nv50_crc_init(struct drm_device *dev) {}
static inline int
nv50_head_crc_late_register(struct nv50_head *head) { return 0; }
static inline void nv50_crc_handle_vblank(struct nv50_head *head) {}

static inline int
nv50_crc_atomic_check_head(struct nv50_head *head,
			   struct nv50_head_atom *asyh,
			   struct nv50_head_atom *armh) { return 0; }
static inline void nv50_crc_atomic_check_outp(struct nv50_atom *atom) {}
static inline void
nv50_crc_atomic_stop_reporting(struct drm_atomic_state *state) {}
static inline void
nv50_crc_atomic_init_notifier_contexts(struct drm_atomic_state *state) {}
static inline void
nv50_crc_atomic_release_notifier_contexts(struct drm_atomic_state *state) {}
static inline void
nv50_crc_atomic_start_reporting(struct drm_atomic_state *state) {}
static inline void
nv50_crc_atomic_set(struct nv50_head *head, struct nv50_head_atom *state) {}
static inline void
nv50_crc_atomic_clr(struct nv50_head *head) {}

#endif /* IS_ENABLED(CONFIG_DEBUG_FS) */
#endif /* !__NV50_CRC_H__ */