1/*	$NetBSD: nouveau_nvkm_engine_disp_headgf119.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $	*/
2
3/*
4 * Copyright 2017 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 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 */
26#include <sys/cdefs.h>
27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_headgf119.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $");
28
29#include "head.h"
30
31static void
32gf119_head_vblank_put(struct nvkm_head *head)
33{
34	struct nvkm_device *device = head->disp->engine.subdev.device;
35	const u32 hoff = head->id * 0x800;
36	nvkm_mask(device, 0x6100c0 + hoff, 0x00000001, 0x00000000);
37}
38
39static void
40gf119_head_vblank_get(struct nvkm_head *head)
41{
42	struct nvkm_device *device = head->disp->engine.subdev.device;
43	const u32 hoff = head->id * 0x800;
44	nvkm_mask(device, 0x6100c0 + hoff, 0x00000001, 0x00000001);
45}
46
47void
48gf119_head_rgclk(struct nvkm_head *head, int div)
49{
50	struct nvkm_device *device = head->disp->engine.subdev.device;
51	nvkm_mask(device, 0x612200 + (head->id * 0x800), 0x0000000f, div);
52}
53
54static void
55gf119_head_state(struct nvkm_head *head, struct nvkm_head_state *state)
56{
57	struct nvkm_device *device = head->disp->engine.subdev.device;
58	const u32 hoff = (state == &head->asy) * 0x20000 + head->id * 0x300;
59	u32 data;
60
61	data = nvkm_rd32(device, 0x640414 + hoff);
62	state->vtotal = (data & 0xffff0000) >> 16;
63	state->htotal = (data & 0x0000ffff);
64	data = nvkm_rd32(device, 0x640418 + hoff);
65	state->vsynce = (data & 0xffff0000) >> 16;
66	state->hsynce = (data & 0x0000ffff);
67	data = nvkm_rd32(device, 0x64041c + hoff);
68	state->vblanke = (data & 0xffff0000) >> 16;
69	state->hblanke = (data & 0x0000ffff);
70	data = nvkm_rd32(device, 0x640420 + hoff);
71	state->vblanks = (data & 0xffff0000) >> 16;
72	state->hblanks = (data & 0x0000ffff);
73	state->hz = nvkm_rd32(device, 0x640450 + hoff);
74
75	data = nvkm_rd32(device, 0x640404 + hoff);
76	switch ((data & 0x000003c0) >> 6) {
77	case 6: state->or.depth = 30; break;
78	case 5: state->or.depth = 24; break;
79	case 2: state->or.depth = 18; break;
80	case 0: state->or.depth = 18; break; /*XXX: "default" */
81	default:
82		state->or.depth = 18;
83		WARN_ON(1);
84		break;
85	}
86}
87
88static const struct nvkm_head_func
89gf119_head = {
90	.state = gf119_head_state,
91	.rgpos = nv50_head_rgpos,
92	.rgclk = gf119_head_rgclk,
93	.vblank_get = gf119_head_vblank_get,
94	.vblank_put = gf119_head_vblank_put,
95};
96
97int
98gf119_head_new(struct nvkm_disp *disp, int id)
99{
100	return nvkm_head_new_(&gf119_head, disp, id);
101}
102
103int
104gf119_head_cnt(struct nvkm_disp *disp, unsigned long *pmask)
105{
106	struct nvkm_device *device = disp->engine.subdev.device;
107	*pmask = nvkm_rd32(device, 0x612004) & 0x0000000f;
108	return nvkm_rd32(device, 0x022448);
109}
110