/* SPDX-License-Identifier: MIT */
#ifndef __NVKM_DISP_HEAD_H__
#define __NVKM_DISP_HEAD_H__
#include <nvif/object.h>
#include "priv.h"

struct nvkm_head {
        const struct nvkm_head_func *func;
        struct nvkm_disp *disp;
        int id;

        struct list_head head;

        struct nvkm_head_state {
                u16 htotal;
                u16 hsynce;
                u16 hblanke;
                u16 hblanks;
                u16 vtotal;
                u16 vsynce;
                u16 vblanke;
                u16 vblanks;
                u32 hz;

                /* Prior to GF119, these are set by the OR. */
                struct {
                        u8 depth;
                } or;
        } arm, asy;

        struct nvkm_object object;
};

int nvkm_head_new_(const struct nvkm_head_func *, struct nvkm_disp *, int id);
void nvkm_head_del(struct nvkm_head **);
struct nvkm_head *nvkm_head_find(struct nvkm_disp *, int id);

struct nvkm_head_func {
        void (*state)(struct nvkm_head *, struct nvkm_head_state *);
        void (*rgpos)(struct nvkm_head *, u16 *hline, u16 *vline);
        void (*rgclk)(struct nvkm_head *, int div);
        void (*vblank_get)(struct nvkm_head *);
        void (*vblank_put)(struct nvkm_head *);
};

int nv50_head_cnt(struct nvkm_disp *, unsigned long *);
int nv50_head_new(struct nvkm_disp *, int id);
void nv50_head_rgpos(struct nvkm_head *, u16 *, u16 *);

int gf119_head_cnt(struct nvkm_disp *, unsigned long *);
int gf119_head_new(struct nvkm_disp *, int id);
void gf119_head_rgclk(struct nvkm_head *, int);

int gv100_head_cnt(struct nvkm_disp *, unsigned long *);
int gv100_head_new(struct nvkm_disp *, int id);

#define HEAD_MSG(h,l,f,a...) do {                                              \
        struct nvkm_head *_h = (h);                                            \
        nvkm_##l(&_h->disp->engine.subdev, "head-%d: "f"\n", _h->id, ##a);     \
} while(0)
#define HEAD_WARN(h,f,a...) HEAD_MSG((h), warn, f, ##a)
#define HEAD_DBG(h,f,a...) HEAD_MSG((h), debug, f, ##a)
#endif