1c39f472eSBen Skeggs /*
2c39f472eSBen Skeggs * Copyright 2012 Red Hat Inc.
3c39f472eSBen Skeggs *
4c39f472eSBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a
5c39f472eSBen Skeggs * copy of this software and associated documentation files (the "Software"),
6c39f472eSBen Skeggs * to deal in the Software without restriction, including without limitation
7c39f472eSBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8c39f472eSBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the
9c39f472eSBen Skeggs * Software is furnished to do so, subject to the following conditions:
10c39f472eSBen Skeggs *
11c39f472eSBen Skeggs * The above copyright notice and this permission notice shall be included in
12c39f472eSBen Skeggs * all copies or substantial portions of the Software.
13c39f472eSBen Skeggs *
14c39f472eSBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15c39f472eSBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16c39f472eSBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17c39f472eSBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18c39f472eSBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19c39f472eSBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20c39f472eSBen Skeggs * OTHER DEALINGS IN THE SOFTWARE.
21c39f472eSBen Skeggs *
22c39f472eSBen Skeggs * Authors: Ben Skeggs
23c39f472eSBen Skeggs */
24c39f472eSBen Skeggs #include <subdev/bios.h>
25c39f472eSBen Skeggs #include <subdev/bios/dcb.h>
26c39f472eSBen Skeggs #include <subdev/bios/conn.h>
27c39f472eSBen Skeggs
28c39f472eSBen Skeggs u32
nvbios_connTe(struct nvkm_bios * bios,u8 * ver,u8 * hdr,u8 * cnt,u8 * len)29d390b480SBen Skeggs nvbios_connTe(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
30c39f472eSBen Skeggs {
31c39f472eSBen Skeggs u32 dcb = dcb_table(bios, ver, hdr, cnt, len);
32c39f472eSBen Skeggs if (dcb && *ver >= 0x30 && *hdr >= 0x16) {
33*7f5f518fSBen Skeggs u32 data = nvbios_rd16(bios, dcb + 0x14);
34c39f472eSBen Skeggs if (data) {
35*7f5f518fSBen Skeggs *ver = nvbios_rd08(bios, data + 0);
36*7f5f518fSBen Skeggs *hdr = nvbios_rd08(bios, data + 1);
37*7f5f518fSBen Skeggs *cnt = nvbios_rd08(bios, data + 2);
38*7f5f518fSBen Skeggs *len = nvbios_rd08(bios, data + 3);
39c39f472eSBen Skeggs return data;
40c39f472eSBen Skeggs }
41c39f472eSBen Skeggs }
42c39f472eSBen Skeggs return 0x00000000;
43c39f472eSBen Skeggs }
44c39f472eSBen Skeggs
45c39f472eSBen Skeggs u32
nvbios_connTp(struct nvkm_bios * bios,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,struct nvbios_connT * info)46d390b480SBen Skeggs nvbios_connTp(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
47c39f472eSBen Skeggs struct nvbios_connT *info)
48c39f472eSBen Skeggs {
49c39f472eSBen Skeggs u32 data = nvbios_connTe(bios, ver, hdr, cnt, len);
50c39f472eSBen Skeggs memset(info, 0x00, sizeof(*info));
51c39f472eSBen Skeggs switch (!!data * *ver) {
52c39f472eSBen Skeggs case 0x30:
53c39f472eSBen Skeggs case 0x40:
54c39f472eSBen Skeggs return data;
55c39f472eSBen Skeggs default:
56c39f472eSBen Skeggs break;
57c39f472eSBen Skeggs }
58c39f472eSBen Skeggs return 0x00000000;
59c39f472eSBen Skeggs }
60c39f472eSBen Skeggs
61c39f472eSBen Skeggs u32
nvbios_connEe(struct nvkm_bios * bios,u8 idx,u8 * ver,u8 * len)62d390b480SBen Skeggs nvbios_connEe(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len)
63c39f472eSBen Skeggs {
64c39f472eSBen Skeggs u8 hdr, cnt;
65c39f472eSBen Skeggs u32 data = nvbios_connTe(bios, ver, &hdr, &cnt, len);
66c39f472eSBen Skeggs if (data && idx < cnt)
67c39f472eSBen Skeggs return data + hdr + (idx * *len);
68c39f472eSBen Skeggs return 0x00000000;
69c39f472eSBen Skeggs }
70c39f472eSBen Skeggs
71c39f472eSBen Skeggs u32
nvbios_connEp(struct nvkm_bios * bios,u8 idx,u8 * ver,u8 * len,struct nvbios_connE * info)72d390b480SBen Skeggs nvbios_connEp(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len,
73c39f472eSBen Skeggs struct nvbios_connE *info)
74c39f472eSBen Skeggs {
75c39f472eSBen Skeggs u32 data = nvbios_connEe(bios, idx, ver, len);
76c39f472eSBen Skeggs memset(info, 0x00, sizeof(*info));
77c39f472eSBen Skeggs switch (!!data * *ver) {
78c39f472eSBen Skeggs case 0x30:
79c39f472eSBen Skeggs case 0x40:
80*7f5f518fSBen Skeggs info->type = nvbios_rd08(bios, data + 0x00);
81*7f5f518fSBen Skeggs info->location = nvbios_rd08(bios, data + 0x01) & 0x0f;
82*7f5f518fSBen Skeggs info->hpd = (nvbios_rd08(bios, data + 0x01) & 0x30) >> 4;
83*7f5f518fSBen Skeggs info->dp = (nvbios_rd08(bios, data + 0x01) & 0xc0) >> 6;
84c39f472eSBen Skeggs if (*len < 4)
85c39f472eSBen Skeggs return data;
86*7f5f518fSBen Skeggs info->hpd |= (nvbios_rd08(bios, data + 0x02) & 0x03) << 2;
87*7f5f518fSBen Skeggs info->dp |= nvbios_rd08(bios, data + 0x02) & 0x0c;
88*7f5f518fSBen Skeggs info->di = (nvbios_rd08(bios, data + 0x02) & 0xf0) >> 4;
89*7f5f518fSBen Skeggs info->hpd |= (nvbios_rd08(bios, data + 0x03) & 0x07) << 4;
90*7f5f518fSBen Skeggs info->sr = (nvbios_rd08(bios, data + 0x03) & 0x08) >> 3;
91*7f5f518fSBen Skeggs info->lcdid = (nvbios_rd08(bios, data + 0x03) & 0x70) >> 4;
92c39f472eSBen Skeggs return data;
93c39f472eSBen Skeggs default:
94c39f472eSBen Skeggs break;
95c39f472eSBen Skeggs }
96c39f472eSBen Skeggs return 0x00000000;
97c39f472eSBen Skeggs }
98