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
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.
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);
45 *hdr = nvbios_rd08(bios, data + 0x01);
46 *len = nvbios_rd08(bios, data + 0x02);
47 *cnt = nvbios_rd08(bios, data + 0x03);
60 nvbios_dpout_entry(struct nvkm_bios *bios, u8 idx,
61 u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
63 u16 data = nvbios_dp_table(bios, ver, hdr, cnt, len);
64 if (data && idx < *cnt) {
65 u16 outp = nvbios_rd16(bios, data + *hdr + idx * *len);
66 switch (*ver * !!outp) {
70 *hdr = nvbios_rd08(bios, data + 0x04);
71 *len = nvbios_rd08(bios, data + 0x05);
72 *cnt = nvbios_rd08(bios, outp + 0x04);
77 *hdr = nvbios_rd08(bios, data + 0x04);
91 nvbios_dpout_parse(struct nvkm_bios *bios, u8 idx,
92 u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
93 struct nvbios_dpout *info)
95 u16 data = nvbios_dpout_entry(bios, idx, ver, hdr, cnt, len);
96 memset(info, 0x00, sizeof(*info));
98 info->type = nvbios_rd16(bios, data + 0x00);
99 info->mask = nvbios_rd16(bios, data + 0x02);
102 info->mask |= 0x00c0; /* match any link */
106 info->flags = nvbios_rd08(bios, data + 0x05);
107 info->script[0] = nvbios_rd16(bios, data + 0x06);
108 info->script[1] = nvbios_rd16(bios, data + 0x08);
110 info->lnkcmp = nvbios_rd16(bios, data + 0x0a);
112 info->script[2] = nvbios_rd16(bios, data + 0x0c);
113 info->script[3] = nvbios_rd16(bios, data + 0x0e);
116 info->script[4] = nvbios_rd16(bios, data + 0x10);
121 info->flags = nvbios_rd08(bios, data + 0x04);
122 info->script[0] = nvbios_rd16(bios, data + 0x05);
123 info->script[1] = nvbios_rd16(bios, data + 0x07);
124 info->lnkcmp = nvbios_rd16(bios, data + 0x09);
125 info->script[2] = nvbios_rd16(bios, data + 0x0b);
126 info->script[3] = nvbios_rd16(bios, data + 0x0d);
127 info->script[4] = nvbios_rd16(bios, data + 0x0f);
138 nvbios_dpout_match(struct nvkm_bios *bios, u16 type, u16 mask,
139 u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
140 struct nvbios_dpout *info)
143 while ((data = nvbios_dpout_parse(bios, idx++, ver, hdr, cnt, len, info)) || *ver) {
144 if (data && info->type == type) {
145 if ((info->mask & mask) == mask)
153 nvbios_dpcfg_entry(struct nvkm_bios *bios, u16 outp, u8 idx,
154 u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
157 outp = nvbios_dp_table(bios, ver, hdr, cnt, len);
158 *hdr = *hdr + (*len * * cnt);
159 *len = nvbios_rd08(bios, outp + 0x06);
160 *cnt = nvbios_rd08(bios, outp + 0x07) *
161 nvbios_rd08(bios, outp + 0x05);
165 return outp + *hdr + (idx * *len);
171 nvbios_dpcfg_parse(struct nvkm_bios *bios, u16 outp, u8 idx,
172 u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
173 struct nvbios_dpcfg *info)
175 u16 data = nvbios_dpcfg_entry(bios, outp, idx, ver, hdr, cnt, len);
176 memset(info, 0x00, sizeof(*info));
181 info->dc = nvbios_rd08(bios, data + 0x02);
182 info->pe = nvbios_rd08(bios, data + 0x03);
183 info->tx_pu = nvbios_rd08(bios, data + 0x04);
188 info->pc = nvbios_rd08(bios, data + 0x00);
189 info->dc = nvbios_rd08(bios, data + 0x01);
190 info->pe = nvbios_rd08(bios, data + 0x02);
191 info->tx_pu = nvbios_rd08(bios, data + 0x03);
194 info->dc = nvbios_rd08(bios, data + 0x00);
195 info->pe = nvbios_rd08(bios, data + 0x01);
196 info->tx_pu = nvbios_rd08(bios, data + 0x02);
207 nvbios_dpcfg_match(struct nvkm_bios *bios, u16 outp, u8 pc, u8 vs, u8 pe,
208 u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
209 struct nvbios_dpcfg *info)
215 const u8 vsoff[] = { 0, 4, 7, 9 };
216 idx = (pc * 10) + vsoff[vs] + pe;
217 if (*ver >= 0x40 && *ver <= 0x41 && *hdr >= 0x12)
218 idx += nvbios_rd08(bios, outp + 0x11) * 40;
221 idx += nvbios_rd08(bios, outp + 0x11) * 10;
223 while ((data = nvbios_dpcfg_entry(bios, outp, ++idx,
224 ver, hdr, cnt, len))) {
225 if (nvbios_rd08(bios, data + 0x00) == vs &&
226 nvbios_rd08(bios, data + 0x01) == pe)
231 return nvbios_dpcfg_parse(bios, outp, idx, ver, hdr, cnt, len, info);