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      1 /*	$NetBSD: nouveau_dispnv50_head917d.c,v 1.2 2021/12/18 23:45:32 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2018 Red Hat Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 #include <sys/cdefs.h>
     25 __KERNEL_RCSID(0, "$NetBSD: nouveau_dispnv50_head917d.c,v 1.2 2021/12/18 23:45:32 riastradh Exp $");
     26 
     27 #include "head.h"
     28 #include "core.h"
     29 
     30 static void
     31 head917d_dither(struct nv50_head *head, struct nv50_head_atom *asyh)
     32 {
     33 	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
     34 	u32 *push;
     35 	if ((push = evo_wait(core, 2))) {
     36 		evo_mthd(push, 0x04a0 + (head->base.index * 0x0300), 1);
     37 		evo_data(push, asyh->dither.mode << 3 |
     38 			       asyh->dither.bits << 1 |
     39 			       asyh->dither.enable);
     40 		evo_kick(push, core);
     41 	}
     42 }
     43 
     44 static void
     45 head917d_base(struct nv50_head *head, struct nv50_head_atom *asyh)
     46 {
     47 	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
     48 	u32 bounds = 0;
     49 	u32 *push;
     50 
     51 	if (asyh->base.cpp) {
     52 		switch (asyh->base.cpp) {
     53 		case 8: bounds |= 0x00000500; break;
     54 		case 4: bounds |= 0x00000300; break;
     55 		case 2: bounds |= 0x00000100; break;
     56 		case 1: bounds |= 0x00000000; break;
     57 		default:
     58 			WARN_ON(1);
     59 			break;
     60 		}
     61 		bounds |= 0x00020001;
     62 	}
     63 
     64 	if ((push = evo_wait(core, 2))) {
     65 		evo_mthd(push, 0x04d0 + head->base.index * 0x300, 1);
     66 		evo_data(push, bounds);
     67 		evo_kick(push, core);
     68 	}
     69 }
     70 
     71 int
     72 head917d_curs_layout(struct nv50_head *head, struct nv50_wndw_atom *asyw,
     73 		     struct nv50_head_atom *asyh)
     74 {
     75 	switch (asyw->state.fb->width) {
     76 	case  32: asyh->curs.layout = 0; break;
     77 	case  64: asyh->curs.layout = 1; break;
     78 	case 128: asyh->curs.layout = 2; break;
     79 	case 256: asyh->curs.layout = 3; break;
     80 	default:
     81 		return -EINVAL;
     82 	}
     83 	return 0;
     84 }
     85 
     86 const struct nv50_head_func
     87 head917d = {
     88 	.view = head907d_view,
     89 	.mode = head907d_mode,
     90 	.olut = head907d_olut,
     91 	.olut_size = 1024,
     92 	.olut_set = head907d_olut_set,
     93 	.olut_clr = head907d_olut_clr,
     94 	.core_calc = head507d_core_calc,
     95 	.core_set = head907d_core_set,
     96 	.core_clr = head907d_core_clr,
     97 	.curs_layout = head917d_curs_layout,
     98 	.curs_format = head507d_curs_format,
     99 	.curs_set = head907d_curs_set,
    100 	.curs_clr = head907d_curs_clr,
    101 	.base = head917d_base,
    102 	.ovly = head907d_ovly,
    103 	.dither = head917d_dither,
    104 	.procamp = head907d_procamp,
    105 	.or = head907d_or,
    106 };
    107