1/*	$NetBSD: nouveau_nvkm_engine_disp_hdmigf119.c,v 1.3 2021/12/18 23:45:35 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#include <sys/cdefs.h>
27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_hdmigf119.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
28
29#include "hdmi.h"
30
31void
32gf119_hdmi_ctrl(struct nvkm_ior *ior, int head, bool enable, u8 max_ac_packet,
33		u8 rekey, u8 *avi, u8 avi_size, u8 *vendor, u8 vendor_size)
34{
35	struct nvkm_device *device = ior->disp->engine.subdev.device;
36	const u32 ctrl = 0x40000000 * enable |
37			 max_ac_packet << 16 |
38			 rekey;
39	const u32 hoff = head * 0x800;
40	struct packed_hdmi_infoframe avi_infoframe;
41	struct packed_hdmi_infoframe vendor_infoframe;
42
43	pack_hdmi_infoframe(&avi_infoframe, avi, avi_size);
44	pack_hdmi_infoframe(&vendor_infoframe, vendor, vendor_size);
45
46	if (!(ctrl & 0x40000000)) {
47		nvkm_mask(device, 0x616798 + hoff, 0x40000000, 0x00000000);
48		nvkm_mask(device, 0x616730 + hoff, 0x00000001, 0x00000000);
49		nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000000);
50		nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000000);
51		return;
52	}
53
54	/* AVI InfoFrame */
55	nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000000);
56	if (avi_size) {
57		nvkm_wr32(device, 0x61671c + hoff, avi_infoframe.header);
58		nvkm_wr32(device, 0x616720 + hoff, avi_infoframe.subpack0_low);
59		nvkm_wr32(device, 0x616724 + hoff, avi_infoframe.subpack0_high);
60		nvkm_wr32(device, 0x616728 + hoff, avi_infoframe.subpack1_low);
61		nvkm_wr32(device, 0x61672c + hoff, avi_infoframe.subpack1_high);
62		nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000001);
63	}
64
65	/* GENERIC(?) / Vendor InfoFrame? */
66	nvkm_mask(device, 0x616730 + hoff, 0x00010001, 0x00010000);
67	if (vendor_size) {
68		/*
69		 * These appear to be the audio infoframe registers,
70		 * but no other set of infoframe registers has yet
71		 * been found.
72		 */
73		nvkm_wr32(device, 0x616738 + hoff, vendor_infoframe.header);
74		nvkm_wr32(device, 0x61673c + hoff, vendor_infoframe.subpack0_low);
75		nvkm_wr32(device, 0x616740 + hoff, vendor_infoframe.subpack0_high);
76		/* Is there a second (or further?) set of subpack registers here? */
77		nvkm_mask(device, 0x616730 + hoff, 0x00000001, 0x00000001);
78	}
79
80	/* ??? InfoFrame? */
81	nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000000);
82	nvkm_wr32(device, 0x6167ac + hoff, 0x00000010);
83	nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000001);
84
85	/* HDMI_CTRL */
86	nvkm_mask(device, 0x616798 + hoff, 0x401f007f, ctrl);
87}
88