2 * Copyright 2012 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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
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19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
24 #include <subdev/bios.h>
25 #include <subdev/bios/bit.h>
26 #include <subdev/bios/dp.h>
29 nvbios_dp_table(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
33 if (!bit_entry(bios, 'd', &d)) {
34 if (d.version == 1 && d.length >= 2) {
35 u16 data = nvbios_rd16(bios, d.offset);
37 *ver = nvbios_rd08(bios, data + 0x00);
44 *hdr = nvbios_rd08(bios, data + 0x01);
45 *len = nvbios_rd08(bios, data + 0x02);
46 *cnt = nvbios_rd08(bios, data + 0x03);
59 nvbios_dpout_entry(struct nvkm_bios *bios, u8 idx,
60 u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
62 u16 data = nvbios_dp_table(bios, ver, hdr, cnt, len);
63 if (data && idx < *cnt) {
64 u16 outp = nvbios_rd16(bios, data + *hdr + idx * *len);
65 switch (*ver * !!outp) {
68 *hdr = nvbios_rd08(bios, data + 0x04);
69 *len = nvbios_rd08(bios, data + 0x05);
70 *cnt = nvbios_rd08(bios, outp + 0x04);
75 *hdr = nvbios_rd08(bios, data + 0x04);
89 nvbios_dpout_parse(struct nvkm_bios *bios, u8 idx,
90 u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
91 struct nvbios_dpout *info)
93 u16 data = nvbios_dpout_entry(bios, idx, ver, hdr, cnt, len);
94 memset(info, 0x00, sizeof(*info));
96 info->type = nvbios_rd16(bios, data + 0x00);
97 info->mask = nvbios_rd16(bios, data + 0x02);
101 info->flags = nvbios_rd08(bios, data + 0x05);
102 info->script[0] = nvbios_rd16(bios, data + 0x06);
103 info->script[1] = nvbios_rd16(bios, data + 0x08);
104 info->lnkcmp = nvbios_rd16(bios, data + 0x0a);
106 info->script[2] = nvbios_rd16(bios, data + 0x0c);
107 info->script[3] = nvbios_rd16(bios, data + 0x0e);
110 info->script[4] = nvbios_rd16(bios, data + 0x10);
115 info->flags = nvbios_rd08(bios, data + 0x04);
116 info->script[0] = nvbios_rd16(bios, data + 0x05);
117 info->script[1] = nvbios_rd16(bios, data + 0x07);
118 info->lnkcmp = nvbios_rd16(bios, data + 0x09);
119 info->script[2] = nvbios_rd16(bios, data + 0x0b);
120 info->script[3] = nvbios_rd16(bios, data + 0x0d);
121 info->script[4] = nvbios_rd16(bios, data + 0x0f);
132 nvbios_dpout_match(struct nvkm_bios *bios, u16 type, u16 mask,
133 u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
134 struct nvbios_dpout *info)
137 while ((data = nvbios_dpout_parse(bios, idx++, ver, hdr, cnt, len, info)) || *ver) {
138 if (data && info->type == type) {
139 if ((info->mask & mask) == mask)
147 nvbios_dpcfg_entry(struct nvkm_bios *bios, u16 outp, u8 idx,
148 u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
151 outp = nvbios_dp_table(bios, ver, hdr, cnt, len);
152 *hdr = *hdr + (*len * * cnt);
153 *len = nvbios_rd08(bios, outp + 0x06);
154 *cnt = nvbios_rd08(bios, outp + 0x07) *
155 nvbios_rd08(bios, outp + 0x05);
159 return outp + *hdr + (idx * *len);
165 nvbios_dpcfg_parse(struct nvkm_bios *bios, u16 outp, u8 idx,
166 u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
167 struct nvbios_dpcfg *info)
169 u16 data = nvbios_dpcfg_entry(bios, outp, idx, ver, hdr, cnt, len);
170 memset(info, 0x00, sizeof(*info));
174 info->dc = nvbios_rd08(bios, data + 0x02);
175 info->pe = nvbios_rd08(bios, data + 0x03);
176 info->tx_pu = nvbios_rd08(bios, data + 0x04);
181 info->pc = nvbios_rd08(bios, data + 0x00);
182 info->dc = nvbios_rd08(bios, data + 0x01);
183 info->pe = nvbios_rd08(bios, data + 0x02);
184 info->tx_pu = nvbios_rd08(bios, data + 0x03);
187 info->dc = nvbios_rd08(bios, data + 0x00);
188 info->pe = nvbios_rd08(bios, data + 0x01);
189 info->tx_pu = nvbios_rd08(bios, data + 0x02);
200 nvbios_dpcfg_match(struct nvkm_bios *bios, u16 outp, u8 pc, u8 vs, u8 pe,
201 u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
202 struct nvbios_dpcfg *info)
208 const u8 vsoff[] = { 0, 4, 7, 9 };
209 idx = (pc * 10) + vsoff[vs] + pe;
210 if (*ver >= 0x40 && *hdr >= 0x12)
211 idx += nvbios_rd08(bios, outp + 0x11) * 40;
213 while ((data = nvbios_dpcfg_entry(bios, outp, ++idx,
214 ver, hdr, cnt, len))) {
215 if (nvbios_rd08(bios, data + 0x00) == vs &&
216 nvbios_rd08(bios, data + 0x01) == pe)
221 return nvbios_dpcfg_parse(bios, outp, idx, ver, hdr, cnt, len, info);