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7500bb7e BS |
1 | /* |
2 | * Copyright 2013 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 | */ | |
7500bb7e BS |
24 | #include <subdev/bios.h> |
25 | #include <subdev/bios/bit.h> | |
26 | #include <subdev/bios/M0205.h> | |
27 | ||
28 | u32 | |
d390b480 | 29 | nvbios_M0205Te(struct nvkm_bios *bios, |
7500bb7e BS |
30 | u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz) |
31 | { | |
32 | struct bit_entry bit_M; | |
33 | u32 data = 0x00000000; | |
34 | ||
35 | if (!bit_entry(bios, 'M', &bit_M)) { | |
36 | if (bit_M.version == 2 && bit_M.length > 0x08) | |
7f5f518f | 37 | data = nvbios_rd32(bios, bit_M.offset + 0x05); |
7500bb7e | 38 | if (data) { |
7f5f518f | 39 | *ver = nvbios_rd08(bios, data + 0x00); |
7500bb7e BS |
40 | switch (*ver) { |
41 | case 0x10: | |
7f5f518f BS |
42 | *hdr = nvbios_rd08(bios, data + 0x01); |
43 | *len = nvbios_rd08(bios, data + 0x02); | |
44 | *ssz = nvbios_rd08(bios, data + 0x03); | |
45 | *snr = nvbios_rd08(bios, data + 0x04); | |
46 | *cnt = nvbios_rd08(bios, data + 0x05); | |
7500bb7e BS |
47 | return data; |
48 | default: | |
49 | break; | |
50 | } | |
51 | } | |
52 | } | |
53 | ||
54 | return 0x00000000; | |
55 | } | |
56 | ||
57 | u32 | |
d390b480 | 58 | nvbios_M0205Tp(struct nvkm_bios *bios, |
7500bb7e BS |
59 | u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz, |
60 | struct nvbios_M0205T *info) | |
61 | { | |
62 | u32 data = nvbios_M0205Te(bios, ver, hdr, cnt, len, snr, ssz); | |
63 | memset(info, 0x00, sizeof(*info)); | |
64 | switch (!!data * *ver) { | |
65 | case 0x10: | |
7f5f518f | 66 | info->freq = nvbios_rd16(bios, data + 0x06); |
7500bb7e BS |
67 | break; |
68 | default: | |
69 | break; | |
70 | } | |
71 | return data; | |
72 | } | |
73 | ||
74 | u32 | |
d390b480 | 75 | nvbios_M0205Ee(struct nvkm_bios *bios, int idx, |
7500bb7e BS |
76 | u8 *ver, u8 *hdr, u8 *cnt, u8 *len) |
77 | { | |
78 | u8 snr, ssz; | |
79 | u32 data = nvbios_M0205Te(bios, ver, hdr, cnt, len, &snr, &ssz); | |
80 | if (data && idx < *cnt) { | |
81 | data = data + *hdr + idx * (*len + (snr * ssz)); | |
82 | *hdr = *len; | |
83 | *cnt = snr; | |
84 | *len = ssz; | |
85 | return data; | |
86 | } | |
87 | return 0x00000000; | |
88 | } | |
89 | ||
90 | u32 | |
d390b480 | 91 | nvbios_M0205Ep(struct nvkm_bios *bios, int idx, |
7500bb7e BS |
92 | u8 *ver, u8 *hdr, u8 *cnt, u8 *len, |
93 | struct nvbios_M0205E *info) | |
94 | { | |
95 | u32 data = nvbios_M0205Ee(bios, idx, ver, hdr, cnt, len); | |
96 | memset(info, 0x00, sizeof(*info)); | |
97 | switch (!!data * *ver) { | |
98 | case 0x10: | |
7f5f518f | 99 | info->type = nvbios_rd08(bios, data + 0x00) & 0x0f; |
7500bb7e BS |
100 | return data; |
101 | default: | |
102 | break; | |
103 | } | |
104 | return 0x00000000; | |
105 | } | |
106 | ||
107 | u32 | |
d390b480 | 108 | nvbios_M0205Se(struct nvkm_bios *bios, int ent, int idx, u8 *ver, u8 *hdr) |
7500bb7e BS |
109 | { |
110 | ||
111 | u8 cnt, len; | |
112 | u32 data = nvbios_M0205Ee(bios, ent, ver, hdr, &cnt, &len); | |
113 | if (data && idx < cnt) { | |
114 | data = data + *hdr + idx * len; | |
115 | *hdr = len; | |
116 | return data; | |
117 | } | |
118 | return 0x00000000; | |
119 | } | |
120 | ||
121 | u32 | |
d390b480 | 122 | nvbios_M0205Sp(struct nvkm_bios *bios, int ent, int idx, u8 *ver, u8 *hdr, |
7500bb7e BS |
123 | struct nvbios_M0205S *info) |
124 | { | |
125 | u32 data = nvbios_M0205Se(bios, ent, idx, ver, hdr); | |
126 | memset(info, 0x00, sizeof(*info)); | |
127 | switch (!!data * *ver) { | |
128 | case 0x10: | |
7f5f518f | 129 | info->data = nvbios_rd08(bios, data + 0x00); |
7500bb7e BS |
130 | return data; |
131 | default: | |
132 | break; | |
133 | } | |
134 | return 0x00000000; | |
135 | } |