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      1 /*	$NetBSD: head.h,v 1.2 2021/12/18 23:45:35 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: MIT */
      4 #ifndef __NVKM_DISP_HEAD_H__
      5 #define __NVKM_DISP_HEAD_H__
      6 #include "priv.h"
      7 
      8 struct nvkm_head {
      9 	const struct nvkm_head_func *func;
     10 	struct nvkm_disp *disp;
     11 	int id;
     12 
     13 	struct list_head head;
     14 
     15 	struct nvkm_head_state {
     16 		u16 htotal;
     17 		u16 hsynce;
     18 		u16 hblanke;
     19 		u16 hblanks;
     20 		u16 vtotal;
     21 		u16 vsynce;
     22 		u16 vblanke;
     23 		u16 vblanks;
     24 		u32 hz;
     25 
     26 		/* Prior to GF119, these are set by the OR. */
     27 		struct {
     28 			u8 depth;
     29 		} or;
     30 	} arm, asy;
     31 };
     32 
     33 int nvkm_head_new_(const struct nvkm_head_func *, struct nvkm_disp *, int id);
     34 void nvkm_head_del(struct nvkm_head **);
     35 int nvkm_head_mthd_scanoutpos(struct nvkm_object *,
     36 			      struct nvkm_head *, void *, u32);
     37 struct nvkm_head *nvkm_head_find(struct nvkm_disp *, int id);
     38 
     39 struct nvkm_head_func {
     40 	void (*state)(struct nvkm_head *, struct nvkm_head_state *);
     41 	void (*rgpos)(struct nvkm_head *, u16 *hline, u16 *vline);
     42 	void (*rgclk)(struct nvkm_head *, int div);
     43 	void (*vblank_get)(struct nvkm_head *);
     44 	void (*vblank_put)(struct nvkm_head *);
     45 };
     46 
     47 void nv50_head_rgpos(struct nvkm_head *, u16 *, u16 *);
     48 
     49 #define HEAD_MSG(h,l,f,a...) do {                                              \
     50 	struct nvkm_head *_h = (h);                                            \
     51 	nvkm_##l(&_h->disp->engine.subdev, "head-%d: "f"\n", _h->id, ##a);     \
     52 } while(0)
     53 #define HEAD_WARN(h,f,a...) HEAD_MSG((h), warn, f, ##a)
     54 #define HEAD_DBG(h,f,a...) HEAD_MSG((h), debug, f, ##a)
     55 
     56 int nv04_head_new(struct nvkm_disp *, int id);
     57 
     58 int nv50_head_cnt(struct nvkm_disp *, unsigned long *);
     59 int nv50_head_new(struct nvkm_disp *, int id);
     60 
     61 int gf119_head_cnt(struct nvkm_disp *, unsigned long *);
     62 int gf119_head_new(struct nvkm_disp *, int id);
     63 void gf119_head_rgclk(struct nvkm_head *, int);
     64 
     65 int gv100_head_cnt(struct nvkm_disp *, unsigned long *);
     66 int gv100_head_new(struct nvkm_disp *, int id);
     67 #endif
     68