1/*	$NetBSD: nouveau_nvkm_engine_disp_hdmigv100.c,v 1.2 2021/12/18 23:45:35 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_nvkm_engine_disp_hdmigv100.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $");
26
27#include "hdmi.h"
28
29void
30gv100_hdmi_ctrl(struct nvkm_ior *ior, int head, bool enable, u8 max_ac_packet,
31		u8 rekey, u8 *avi, u8 avi_size, u8 *vendor, u8 vendor_size)
32{
33	struct nvkm_device *device = ior->disp->engine.subdev.device;
34	const u32 ctrl = 0x40000000 * enable |
35			 max_ac_packet << 16 |
36			 rekey;
37	const u32 hoff = head * 0x800;
38	const u32 hdmi = head * 0x400;
39	struct packed_hdmi_infoframe avi_infoframe;
40	struct packed_hdmi_infoframe vendor_infoframe;
41
42	pack_hdmi_infoframe(&avi_infoframe, avi, avi_size);
43	pack_hdmi_infoframe(&vendor_infoframe, vendor, vendor_size);
44
45	if (!(ctrl & 0x40000000)) {
46		nvkm_mask(device, 0x6165c0 + hoff, 0x40000000, 0x00000000);
47		nvkm_mask(device, 0x6f0100 + hdmi, 0x00000001, 0x00000000);
48		nvkm_mask(device, 0x6f00c0 + hdmi, 0x00000001, 0x00000000);
49		nvkm_mask(device, 0x6f0000 + hdmi, 0x00000001, 0x00000000);
50		return;
51	}
52
53	/* AVI InfoFrame (AVI). */
54	nvkm_mask(device, 0x6f0000 + hdmi, 0x00000001, 0x00000000);
55	if (avi_size) {
56		nvkm_wr32(device, 0x6f0008 + hdmi, avi_infoframe.header);
57		nvkm_wr32(device, 0x6f000c + hdmi, avi_infoframe.subpack0_low);
58		nvkm_wr32(device, 0x6f0010 + hdmi, avi_infoframe.subpack0_high);
59		nvkm_wr32(device, 0x6f0014 + hdmi, avi_infoframe.subpack1_low);
60		nvkm_wr32(device, 0x6f0018 + hdmi, avi_infoframe.subpack1_high);
61		nvkm_mask(device, 0x6f0000 + hdmi, 0x00000001, 0x00000001);
62	}
63
64	/* Vendor-specific InfoFrame (VSI). */
65	nvkm_mask(device, 0x6f0100 + hdmi, 0x00010001, 0x00000000);
66	if (vendor_size) {
67		nvkm_wr32(device, 0x6f0108 + hdmi, vendor_infoframe.header);
68		nvkm_wr32(device, 0x6f010c + hdmi, vendor_infoframe.subpack0_low);
69		nvkm_wr32(device, 0x6f0110 + hdmi, vendor_infoframe.subpack0_high);
70		nvkm_wr32(device, 0x6f0110 + hdmi, 0x00000000);
71		nvkm_wr32(device, 0x6f0114 + hdmi, 0x00000000);
72		nvkm_wr32(device, 0x6f0118 + hdmi, 0x00000000);
73		nvkm_wr32(device, 0x6f011c + hdmi, 0x00000000);
74		nvkm_wr32(device, 0x6f0120 + hdmi, 0x00000000);
75		nvkm_wr32(device, 0x6f0124 + hdmi, 0x00000000);
76		nvkm_mask(device, 0x6f0100 + hdmi, 0x00000001, 0x00000001);
77	}
78
79
80	/* General Control (GCP). */
81	nvkm_mask(device, 0x6f00c0 + hdmi, 0x00000001, 0x00000000);
82	nvkm_wr32(device, 0x6f00cc + hdmi, 0x00000010);
83	nvkm_mask(device, 0x6f00c0 + hdmi, 0x00000001, 0x00000001);
84
85	/* Audio Clock Regeneration (ACR). */
86	nvkm_wr32(device, 0x6f0080 + hdmi, 0x82000000);
87
88	/* NV_PDISP_SF_HDMI_CTRL. */
89	nvkm_mask(device, 0x6165c0 + hoff, 0x401f007f, ctrl);
90}
91