1 /* $NetBSD: nouveau_nvkm_engine_disp_hdmigt215.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_hdmigt215.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
28
29 #include "hdmi.h"
30
31 void
gt215_hdmi_ctrl(struct nvkm_ior * ior,int head,bool enable,u8 max_ac_packet,u8 rekey,u8 * avi,u8 avi_size,u8 * vendor,u8 vendor_size)32 gt215_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 soff = nv50_ior_base(ior);
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, 0x61c5a4 + soff, 0x40000000, 0x00000000);
49 nvkm_mask(device, 0x61c53c + soff, 0x00000001, 0x00000000);
50 nvkm_mask(device, 0x61c520 + soff, 0x00000001, 0x00000000);
51 nvkm_mask(device, 0x61c500 + soff, 0x00000001, 0x00000000);
52 return;
53 }
54
55 /* AVI InfoFrame */
56 nvkm_mask(device, 0x61c520 + soff, 0x00000001, 0x00000000);
57 if (avi_size) {
58 nvkm_wr32(device, 0x61c528 + soff, avi_infoframe.header);
59 nvkm_wr32(device, 0x61c52c + soff, avi_infoframe.subpack0_low);
60 nvkm_wr32(device, 0x61c530 + soff, avi_infoframe.subpack0_high);
61 nvkm_wr32(device, 0x61c534 + soff, avi_infoframe.subpack1_low);
62 nvkm_wr32(device, 0x61c538 + soff, avi_infoframe.subpack1_high);
63 nvkm_mask(device, 0x61c520 + soff, 0x00000001, 0x00000001);
64 }
65
66 /* Audio InfoFrame */
67 nvkm_mask(device, 0x61c500 + soff, 0x00000001, 0x00000000);
68 nvkm_wr32(device, 0x61c508 + soff, 0x000a0184);
69 nvkm_wr32(device, 0x61c50c + soff, 0x00000071);
70 nvkm_wr32(device, 0x61c510 + soff, 0x00000000);
71 nvkm_mask(device, 0x61c500 + soff, 0x00000001, 0x00000001);
72
73 /* Vendor InfoFrame */
74 nvkm_mask(device, 0x61c53c + soff, 0x00010001, 0x00010000);
75 if (vendor_size) {
76 nvkm_wr32(device, 0x61c544 + soff, vendor_infoframe.header);
77 nvkm_wr32(device, 0x61c548 + soff, vendor_infoframe.subpack0_low);
78 nvkm_wr32(device, 0x61c54c + soff, vendor_infoframe.subpack0_high);
79 /* Is there a second (or up to fourth?) set of subpack registers here? */
80 /* nvkm_wr32(device, 0x61c550 + soff, vendor_infoframe.subpack1_low); */
81 /* nvkm_wr32(device, 0x61c554 + soff, vendor_infoframe.subpack1_high); */
82 nvkm_mask(device, 0x61c53c + soff, 0x00010001, 0x00010001);
83 }
84
85 nvkm_mask(device, 0x61c5d0 + soff, 0x00070001, 0x00010001); /* SPARE, HW_CTS */
86 nvkm_mask(device, 0x61c568 + soff, 0x00010101, 0x00000000); /* ACR_CTRL, ?? */
87 nvkm_mask(device, 0x61c578 + soff, 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, 0x61c5a4 + soff, 0x5f1f007f, ctrl);
96 }
97