1 | /* $NetBSD: nouveau_subdev_bios_P0260.c,v 1.1.1.1 2014/08/06 12:36:28 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2013 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_bios_P0260.c,v 1.1.1.1 2014/08/06 12:36:28 riastradh Exp $" ); |
29 | |
30 | #include <subdev/bios.h> |
31 | #include <subdev/bios/bit.h> |
32 | #include <subdev/bios/ramcfg.h> |
33 | #include <subdev/bios/P0260.h> |
34 | |
35 | u32 |
36 | nvbios_P0260Te(struct nouveau_bios *bios, |
37 | u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *xnr, u8 *xsz) |
38 | { |
39 | struct bit_entry bit_P; |
40 | u32 data = 0x00000000; |
41 | |
42 | if (!bit_entry(bios, 'P', &bit_P)) { |
43 | if (bit_P.version == 2 && bit_P.length > 0x63) |
44 | data = nv_ro32(bios, bit_P.offset + 0x60); |
45 | if (data) { |
46 | *ver = nv_ro08(bios, data + 0); |
47 | switch (*ver) { |
48 | case 0x10: |
49 | *hdr = nv_ro08(bios, data + 1); |
50 | *cnt = nv_ro08(bios, data + 2); |
51 | *len = 4; |
52 | *xnr = nv_ro08(bios, data + 3); |
53 | *xsz = 4; |
54 | return data; |
55 | default: |
56 | break; |
57 | } |
58 | } |
59 | } |
60 | |
61 | return 0x00000000; |
62 | } |
63 | |
64 | u32 |
65 | nvbios_P0260Ee(struct nouveau_bios *bios, int idx, u8 *ver, u8 *len) |
66 | { |
67 | u8 hdr, cnt, xnr, xsz; |
68 | u32 data = nvbios_P0260Te(bios, ver, &hdr, &cnt, len, &xnr, &xsz); |
69 | if (data && idx < cnt) |
70 | return data + hdr + (idx * *len); |
71 | return 0x00000000; |
72 | } |
73 | |
74 | u32 |
75 | nvbios_P0260Ep(struct nouveau_bios *bios, int idx, u8 *ver, u8 *len, |
76 | struct nvbios_P0260E *info) |
77 | { |
78 | u32 data = nvbios_P0260Ee(bios, idx, ver, len); |
79 | memset(info, 0x00, sizeof(*info)); |
80 | switch (!!data * *ver) { |
81 | case 0x10: |
82 | info->data = nv_ro32(bios, data); |
83 | return data; |
84 | default: |
85 | break; |
86 | } |
87 | return 0x00000000; |
88 | } |
89 | |
90 | u32 |
91 | nvbios_P0260Xe(struct nouveau_bios *bios, int idx, u8 *ver, u8 *xsz) |
92 | { |
93 | u8 hdr, cnt, len, xnr; |
94 | u32 data = nvbios_P0260Te(bios, ver, &hdr, &cnt, &len, &xnr, xsz); |
95 | if (data && idx < xnr) |
96 | return data + hdr + (cnt * len) + (idx * *xsz); |
97 | return 0x00000000; |
98 | } |
99 | |
100 | u32 |
101 | nvbios_P0260Xp(struct nouveau_bios *bios, int idx, u8 *ver, u8 *hdr, |
102 | struct nvbios_P0260X *info) |
103 | { |
104 | u32 data = nvbios_P0260Xe(bios, idx, ver, hdr); |
105 | memset(info, 0x00, sizeof(*info)); |
106 | switch (!!data * *ver) { |
107 | case 0x10: |
108 | info->data = nv_ro32(bios, data); |
109 | return data; |
110 | default: |
111 | break; |
112 | } |
113 | return 0x00000000; |
114 | } |
115 | |