1/*	$NetBSD: nouveau_nvkm_engine_disp_hdmig84.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_hdmig84.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
28
29#include "hdmi.h"
30
31void
32g84_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			 0x1f000000 /* ??? */ |
38			 max_ac_packet << 16 |
39			 rekey;
40	const u32 hoff = head * 0x800;
41	struct packed_hdmi_infoframe avi_infoframe;
42	struct packed_hdmi_infoframe vendor_infoframe;
43
44	pack_hdmi_infoframe(&avi_infoframe, avi, avi_size);
45	pack_hdmi_infoframe(&vendor_infoframe, vendor, vendor_size);
46
47	if (!(ctrl & 0x40000000)) {
48		nvkm_mask(device, 0x6165a4 + hoff, 0x40000000, 0x00000000);
49		nvkm_mask(device, 0x61653c + hoff, 0x00000001, 0x00000000);
50		nvkm_mask(device, 0x616520 + hoff, 0x00000001, 0x00000000);
51		nvkm_mask(device, 0x616500 + hoff, 0x00000001, 0x00000000);
52		return;
53	}
54
55	/* AVI InfoFrame */
56	nvkm_mask(device, 0x616520 + hoff, 0x00000001, 0x00000000);
57	if (avi_size) {
58		nvkm_wr32(device, 0x616528 + hoff, avi_infoframe.header);
59		nvkm_wr32(device, 0x61652c + hoff, avi_infoframe.subpack0_low);
60		nvkm_wr32(device, 0x616530 + hoff, avi_infoframe.subpack0_high);
61		nvkm_wr32(device, 0x616534 + hoff, avi_infoframe.subpack1_low);
62		nvkm_wr32(device, 0x616538 + hoff, avi_infoframe.subpack1_high);
63		nvkm_mask(device, 0x616520 + hoff, 0x00000001, 0x00000001);
64	}
65
66	/* Audio InfoFrame */
67	nvkm_mask(device, 0x616500 + hoff, 0x00000001, 0x00000000);
68	nvkm_wr32(device, 0x616508 + hoff, 0x000a0184);
69	nvkm_wr32(device, 0x61650c + hoff, 0x00000071);
70	nvkm_wr32(device, 0x616510 + hoff, 0x00000000);
71	nvkm_mask(device, 0x616500 + hoff, 0x00000001, 0x00000001);
72
73	/* Vendor InfoFrame */
74	nvkm_mask(device, 0x61653c + hoff, 0x00010001, 0x00010000);
75	if (vendor_size) {
76		nvkm_wr32(device, 0x616544 + hoff, vendor_infoframe.header);
77		nvkm_wr32(device, 0x616548 + hoff, vendor_infoframe.subpack0_low);
78		nvkm_wr32(device, 0x61654c + hoff, vendor_infoframe.subpack0_high);
79		/* Is there a second (or up to fourth?) set of subpack registers here? */
80		/* nvkm_wr32(device, 0x616550 + hoff, vendor_infoframe->subpack1_low); */
81		/* nvkm_wr32(device, 0x616554 + hoff, vendor_infoframe->subpack1_high); */
82		nvkm_mask(device, 0x61653c + hoff, 0x00010001, 0x00010001);
83	}
84
85	nvkm_mask(device, 0x6165d0 + hoff, 0x00070001, 0x00010001); /* SPARE, HW_CTS */
86	nvkm_mask(device, 0x616568 + hoff, 0x00010101, 0x00000000); /* ACR_CTRL, ?? */
87	nvkm_mask(device, 0x616578 + hoff, 0x80000000, 0x80000000); /* ACR_0441_ENABLE */
88
89	/* ??? */
90	nvkm_mask(device, 0x61733c, 0x00100000, 0x00100000); /* RESETF */
91	nvkm_mask(device, 0x61733c, 0x10000000, 0x10000000); /* LOOKUP_EN */
92	nvkm_mask(device, 0x61733c, 0x00100000, 0x00000000); /* !RESETF */
93
94	/* HDMI_CTRL */
95	nvkm_mask(device, 0x6165a4 + hoff, 0x5f1f007f, ctrl);
96}
97