1 /*
2 * Copyright 2014 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24 #include "hdmi.h"
25
26 void
gk104_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)27 gk104_hdmi_ctrl(struct nvkm_ior *ior, int head, bool enable, u8 max_ac_packet,
28 u8 rekey, u8 *avi, u8 avi_size, u8 *vendor, u8 vendor_size)
29 {
30 struct nvkm_device *device = ior->disp->engine.subdev.device;
31 const u32 ctrl = 0x40000000 * enable |
32 max_ac_packet << 16 |
33 rekey;
34 const u32 hoff = head * 0x800;
35 const u32 hdmi = head * 0x400;
36 struct packed_hdmi_infoframe avi_infoframe;
37 struct packed_hdmi_infoframe vendor_infoframe;
38
39 pack_hdmi_infoframe(&avi_infoframe, avi, avi_size);
40 pack_hdmi_infoframe(&vendor_infoframe, vendor, vendor_size);
41
42 if (!(ctrl & 0x40000000)) {
43 nvkm_mask(device, 0x616798 + hoff, 0x40000000, 0x00000000);
44 nvkm_mask(device, 0x690100 + hdmi, 0x00000001, 0x00000000);
45 nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000000);
46 nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000000);
47 return;
48 }
49
50 /* AVI InfoFrame */
51 nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000000);
52 if (avi_size) {
53 nvkm_wr32(device, 0x690008 + hdmi, avi_infoframe.header);
54 nvkm_wr32(device, 0x69000c + hdmi, avi_infoframe.subpack0_low);
55 nvkm_wr32(device, 0x690010 + hdmi, avi_infoframe.subpack0_high);
56 nvkm_wr32(device, 0x690014 + hdmi, avi_infoframe.subpack1_low);
57 nvkm_wr32(device, 0x690018 + hdmi, avi_infoframe.subpack1_high);
58 nvkm_mask(device, 0x690000 + hdmi, 0x00000001, 0x00000001);
59 }
60
61 /* GENERIC(?) / Vendor InfoFrame? */
62 nvkm_mask(device, 0x690100 + hdmi, 0x00010001, 0x00000000);
63 if (vendor_size) {
64 nvkm_wr32(device, 0x690108 + hdmi, vendor_infoframe.header);
65 nvkm_wr32(device, 0x69010c + hdmi, vendor_infoframe.subpack0_low);
66 nvkm_wr32(device, 0x690110 + hdmi, vendor_infoframe.subpack0_high);
67 /* Is there a second (or further?) set of subpack registers here? */
68 nvkm_mask(device, 0x690100 + hdmi, 0x00000001, 0x00000001);
69 }
70
71
72 /* ??? InfoFrame? */
73 nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000000);
74 nvkm_wr32(device, 0x6900cc + hdmi, 0x00000010);
75 nvkm_mask(device, 0x6900c0 + hdmi, 0x00000001, 0x00000001);
76
77 /* ??? */
78 nvkm_wr32(device, 0x690080 + hdmi, 0x82000000);
79
80 /* HDMI_CTRL */
81 nvkm_mask(device, 0x616798 + hoff, 0x401f007f, ctrl);
82 }
83