136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/*
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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/M0209.h>
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u32
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nvbios_M0209Te(struct nvkm_bios *bios,
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u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
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{
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struct bit_entry bit_M;
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u32 data = 0x00000000;
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if (!bit_entry(bios, 'M', &bit_M)) {
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if (bit_M.version == 2 && bit_M.length > 0x0c)
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data = nvbios_rd32(bios, bit_M.offset + 0x09);
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if (data) {
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*ver = nvbios_rd08(bios, data + 0x00);
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switch (*ver) {
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case 0x10:
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*hdr = nvbios_rd08(bios, data + 0x01);
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*len = nvbios_rd08(bios, data + 0x02);
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*ssz = nvbios_rd08(bios, data + 0x03);
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*snr = 1;
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*cnt = nvbios_rd08(bios, data + 0x04);
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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_M0209Ee(struct nvkm_bios *bios, int idx,
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u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
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{
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u8 snr, ssz;
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u32 data = nvbios_M0209Te(bios, ver, hdr, cnt, len, &snr, &ssz);
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if (data && idx < *cnt) {
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data = data + *hdr + idx * (*len + (snr * ssz));
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*hdr = *len;
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*cnt = snr;
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*len = ssz;
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return data;
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}
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return 0x00000000;
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}
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u32
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nvbios_M0209Ep(struct nvkm_bios *bios, int idx,
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u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_M0209E *info)
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{
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u32 data = nvbios_M0209Ee(bios, idx, ver, hdr, cnt, 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->v00_40 = (nvbios_rd08(bios, data + 0x00) & 0x40) >> 6;
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info->bits = nvbios_rd08(bios, data + 0x00) & 0x3f;
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info->modulo = nvbios_rd08(bios, data + 0x01);
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info->v02_40 = (nvbios_rd08(bios, data + 0x02) & 0x40) >> 6;
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info->v02_07 = nvbios_rd08(bios, data + 0x02) & 0x07;
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info->v03 = nvbios_rd08(bios, data + 0x03);
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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_M0209Se(struct nvkm_bios *bios, int ent, int idx, u8 *ver, u8 *hdr)
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{
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u8 cnt, len;
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u32 data = nvbios_M0209Ee(bios, ent, ver, hdr, &cnt, &len);
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if (data && idx < cnt) {
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data = data + *hdr + idx * len;
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*hdr = len;
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return data;
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}
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return 0x00000000;
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}
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u32
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nvbios_M0209Sp(struct nvkm_bios *bios, int ent, int idx, u8 *ver, u8 *hdr,
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struct nvbios_M0209S *info)
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{
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struct nvbios_M0209E M0209E;
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u8 cnt, len;
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u32 data = nvbios_M0209Ep(bios, ent, ver, hdr, &cnt, &len, &M0209E);
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if (data) {
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u32 i, data = nvbios_M0209Se(bios, ent, 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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for (i = 0; i < ARRAY_SIZE(info->data); i++) {
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u32 bits = (i % M0209E.modulo) * M0209E.bits;
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u32 mask = (1ULL << M0209E.bits) - 1;
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u16 off = bits / 8;
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u8 mod = bits % 8;
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info->data[i] = nvbios_rd32(bios, data + off);
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info->data[i] = info->data[i] >> mod;
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info->data[i] = info->data[i] & mask;
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}
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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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return 0x00000000;
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}
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