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