108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
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/*
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* Copyright 2013 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include <subdev/bios.h>
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#include <subdev/bios/bit.h>
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#include <subdev/bios/P0260.h>
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u32
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nvbios_P0260Te(struct nvkm_bios *bios,
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u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *xnr, u8 *xsz)
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{
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struct bit_entry bit_P;
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u32 data = 0x00000000;
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if (!bit_entry(bios, 'P', &bit_P)) {
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if (bit_P.version == 2 && bit_P.length > 0x63)
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data = nvbios_rd32(bios, bit_P.offset + 0x60);
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if (data) {
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*ver = nvbios_rd08(bios, data + 0);
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switch (*ver) {
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case 0x10:
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*hdr = nvbios_rd08(bios, data + 1);
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*cnt = nvbios_rd08(bios, data + 2);
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*len = 4;
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*xnr = nvbios_rd08(bios, data + 3);
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*xsz = 4;
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return data;
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default:
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break;
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}
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}
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}
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return 0x00000000;
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}
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u32
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nvbios_P0260Ee(struct nvkm_bios *bios, int idx, u8 *ver, u8 *len)
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{
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u8 hdr, cnt, xnr, xsz;
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u32 data = nvbios_P0260Te(bios, ver, &hdr, &cnt, len, &xnr, &xsz);
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if (data && idx < cnt)
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return data + hdr + (idx * *len);
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return 0x00000000;
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}
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u32
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nvbios_P0260Ep(struct nvkm_bios *bios, int idx, u8 *ver, u8 *len,
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struct nvbios_P0260E *info)
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{
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u32 data = nvbios_P0260Ee(bios, idx, ver, len);
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memset(info, 0x00, sizeof(*info));
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switch (!!data * *ver) {
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case 0x10:
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info->data = nvbios_rd32(bios, data);
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return data;
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default:
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break;
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}
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return 0x00000000;
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}
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u32
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nvbios_P0260Xe(struct nvkm_bios *bios, int idx, u8 *ver, u8 *xsz)
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{
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u8 hdr, cnt, len, xnr;
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u32 data = nvbios_P0260Te(bios, ver, &hdr, &cnt, &len, &xnr, xsz);
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if (data && idx < xnr)
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return data + hdr + (cnt * len) + (idx * *xsz);
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return 0x00000000;
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}
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u32
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nvbios_P0260Xp(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr,
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struct nvbios_P0260X *info)
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{
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u32 data = nvbios_P0260Xe(bios, idx, ver, hdr);
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memset(info, 0x00, sizeof(*info));
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switch (!!data * *ver) {
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case 0x10:
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info->data = nvbios_rd32(bios, data);
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return data;
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default:
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break;
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}
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return 0x00000000;
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}
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