1 /*
2  * Copyright 2012 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
g84_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 g84_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 			 0x1f000000 /* ??? */ |
33 			 max_ac_packet << 16 |
34 			 rekey;
35 	const u32 hoff = head * 0x800;
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, 0x6165a4 + hoff, 0x40000000, 0x00000000);
44 		nvkm_mask(device, 0x61653c + hoff, 0x00000001, 0x00000000);
45 		nvkm_mask(device, 0x616520 + hoff, 0x00000001, 0x00000000);
46 		nvkm_mask(device, 0x616500 + hoff, 0x00000001, 0x00000000);
47 		return;
48 	}
49 
50 	/* AVI InfoFrame */
51 	nvkm_mask(device, 0x616520 + hoff, 0x00000001, 0x00000000);
52 	if (avi_size) {
53 		nvkm_wr32(device, 0x616528 + hoff, avi_infoframe.header);
54 		nvkm_wr32(device, 0x61652c + hoff, avi_infoframe.subpack0_low);
55 		nvkm_wr32(device, 0x616530 + hoff, avi_infoframe.subpack0_high);
56 		nvkm_wr32(device, 0x616534 + hoff, avi_infoframe.subpack1_low);
57 		nvkm_wr32(device, 0x616538 + hoff, avi_infoframe.subpack1_high);
58 		nvkm_mask(device, 0x616520 + hoff, 0x00000001, 0x00000001);
59 	}
60 
61 	/* Audio InfoFrame */
62 	nvkm_mask(device, 0x616500 + hoff, 0x00000001, 0x00000000);
63 	nvkm_wr32(device, 0x616508 + hoff, 0x000a0184);
64 	nvkm_wr32(device, 0x61650c + hoff, 0x00000071);
65 	nvkm_wr32(device, 0x616510 + hoff, 0x00000000);
66 	nvkm_mask(device, 0x616500 + hoff, 0x00000001, 0x00000001);
67 
68 	/* Vendor InfoFrame */
69 	nvkm_mask(device, 0x61653c + hoff, 0x00010001, 0x00010000);
70 	if (vendor_size) {
71 		nvkm_wr32(device, 0x616544 + hoff, vendor_infoframe.header);
72 		nvkm_wr32(device, 0x616548 + hoff, vendor_infoframe.subpack0_low);
73 		nvkm_wr32(device, 0x61654c + hoff, vendor_infoframe.subpack0_high);
74 		/* Is there a second (or up to fourth?) set of subpack registers here? */
75 		/* nvkm_wr32(device, 0x616550 + hoff, vendor_infoframe->subpack1_low); */
76 		/* nvkm_wr32(device, 0x616554 + hoff, vendor_infoframe->subpack1_high); */
77 		nvkm_mask(device, 0x61653c + hoff, 0x00010001, 0x00010001);
78 	}
79 
80 	nvkm_mask(device, 0x6165d0 + hoff, 0x00070001, 0x00010001); /* SPARE, HW_CTS */
81 	nvkm_mask(device, 0x616568 + hoff, 0x00010101, 0x00000000); /* ACR_CTRL, ?? */
82 	nvkm_mask(device, 0x616578 + hoff, 0x80000000, 0x80000000); /* ACR_0441_ENABLE */
83 
84 	/* ??? */
85 	nvkm_mask(device, 0x61733c, 0x00100000, 0x00100000); /* RESETF */
86 	nvkm_mask(device, 0x61733c, 0x10000000, 0x10000000); /* LOOKUP_EN */
87 	nvkm_mask(device, 0x61733c, 0x00100000, 0x00000000); /* !RESETF */
88 
89 	/* HDMI_CTRL */
90 	nvkm_mask(device, 0x6165a4 + hoff, 0x5f1f007f, ctrl);
91 }
92