1/* $NetBSD: nouveau_engine_disp_nv04.c,v 1.2 2014/08/23 08:03:33 riastradh Exp $ */
2
3/*
4 * Copyright 2012 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
25 */
26
27#include <sys/cdefs.h>
28__KERNEL_RCSID(0, "$NetBSD: nouveau_engine_disp_nv04.c,v 1.2 2014/08/23 08:03:33 riastradh Exp $");
29
30#include "priv.h"
31
32#include <core/event.h>
33#include <core/class.h>
34
35#include <linux/ktime.h> /* XXX */
36
37struct nv04_disp_priv {
38 struct nouveau_disp base;
39};
40
41static int
42nv04_disp_scanoutpos(struct nouveau_object *object, u32 mthd,
43 void *data, u32 size)
44{
45 struct nv04_disp_priv *priv = (void *)object->engine;
46 struct nv04_display_scanoutpos *args = data;
47 const int head = (mthd & NV04_DISP_MTHD_HEAD);
48 u32 line;
49
50 if (size < sizeof(*args))
51 return -EINVAL;
52
53 args->vblanks = nv_rd32(priv, 0x680800 + (head * 0x2000)) & 0xffff;
54 args->vtotal = nv_rd32(priv, 0x680804 + (head * 0x2000)) & 0xffff;
55 args->vblanke = args->vtotal - 1;
56
57 args->hblanks = nv_rd32(priv, 0x680820 + (head * 0x2000)) & 0xffff;
58 args->htotal = nv_rd32(priv, 0x680824 + (head * 0x2000)) & 0xffff;
59 args->hblanke = args->htotal - 1;
60
61 args->time[0] = ktime_to_ns(ktime_get());
62 line = nv_rd32(priv, 0x600868 + (head * 0x2000));
63 args->time[1] = ktime_to_ns(ktime_get());
64 args->hline = (line & 0xffff0000) >> 16;
65 args->vline = (line & 0x0000ffff);
66 return 0;
67}
68
69#define HEAD_MTHD(n) (n), (n) + 0x01
70
71static struct nouveau_omthds
72nv04_disp_omthds[] = {
73 { HEAD_MTHD(NV04_DISP_SCANOUTPOS), nv04_disp_scanoutpos },
74 {}
75};
76
77static struct nouveau_oclass
78nv04_disp_sclass[] = {
79 { NV04_DISP_CLASS, &nouveau_object_ofuncs, nv04_disp_omthds },
80 {},
81};
82
83/*******************************************************************************
84 * Display engine implementation
85 ******************************************************************************/
86
87static void
88nv04_disp_vblank_enable(struct nouveau_event *event, int head)
89{
90 nv_wr32(event->priv, 0x600140 + (head * 0x2000) , 0x00000001);
91}
92
93static void
94nv04_disp_vblank_disable(struct nouveau_event *event, int head)
95{
96 nv_wr32(event->priv, 0x600140 + (head * 0x2000) , 0x00000000);
97}
98
99static void
100nv04_disp_intr(struct nouveau_subdev *subdev)
101{
102 struct nv04_disp_priv *priv = (void *)subdev;
103 u32 crtc0 = nv_rd32(priv, 0x600100);
104 u32 crtc1 = nv_rd32(priv, 0x602100);
105 u32 pvideo;
106
107 if (crtc0 & 0x00000001) {
108 nouveau_event_trigger(priv->base.vblank, 0);
109 nv_wr32(priv, 0x600100, 0x00000001);
110 }
111
112 if (crtc1 & 0x00000001) {
113 nouveau_event_trigger(priv->base.vblank, 1);
114 nv_wr32(priv, 0x602100, 0x00000001);
115 }
116
117 if (nv_device(priv)->chipset >= 0x10 &&
118 nv_device(priv)->chipset <= 0x40) {
119 pvideo = nv_rd32(priv, 0x8100);
120 if (pvideo & ~0x11)
121 nv_info(priv, "PVIDEO intr: %08x\n", pvideo);
122 nv_wr32(priv, 0x8100, pvideo);
123 }
124}
125
126static int
127nv04_disp_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
128 struct nouveau_oclass *oclass, void *data, u32 size,
129 struct nouveau_object **pobject)
130{
131 struct nv04_disp_priv *priv;
132 int ret;
133
134 ret = nouveau_disp_create(parent, engine, oclass, 2, "DISPLAY",
135 "display", &priv);
136 *pobject = nv_object(priv);
137 if (ret)
138 return ret;
139
140 nv_engine(priv)->sclass = nv04_disp_sclass;
141 nv_subdev(priv)->intr = nv04_disp_intr;
142 priv->base.vblank->priv = priv;
143 priv->base.vblank->enable = nv04_disp_vblank_enable;
144 priv->base.vblank->disable = nv04_disp_vblank_disable;
145 return 0;
146}
147
148struct nouveau_oclass *
149nv04_disp_oclass = &(struct nouveau_disp_impl) {
150 .base.handle = NV_ENGINE(DISP, 0x04),
151 .base.ofuncs = &(struct nouveau_ofuncs) {
152 .ctor = nv04_disp_ctor,
153 .dtor = _nouveau_disp_dtor,
154 .init = _nouveau_disp_init,
155 .fini = _nouveau_disp_fini,
156 },
157}.base;
158