/*
* 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/cstep.h>
u32
nvbios_cstepTe(struct nvkm_bios *bios,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *xnr, u8 *xsz)
{
struct bit_entry bit_P;
u32 cstep = 0 ;
if (!bit_entry(bios, 'P' , &bit_P)) {
if (bit_P.version == 2 && bit_P.length >= 0 x38)
cstep = nvbios_rd32(bios, bit_P.offset + 0 x34);
if (cstep) {
*ver = nvbios_rd08(bios, cstep + 0 );
switch (*ver) {
case 0 x10:
*hdr = nvbios_rd08(bios, cstep + 1 );
*cnt = nvbios_rd08(bios, cstep + 3 );
*len = nvbios_rd08(bios, cstep + 2 );
*xnr = nvbios_rd08(bios, cstep + 5 );
*xsz = nvbios_rd08(bios, cstep + 4 );
return cstep;
default :
break ;
}
}
}
return 0 ;
}
u32
nvbios_cstepEe(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr)
{
u8 cnt, len, xnr, xsz;
u32 data = nvbios_cstepTe(bios, ver, hdr, &cnt, &len, &xnr, &xsz);
if (data && idx < cnt) {
data = data + *hdr + (idx * len);
*hdr = len;
return data;
}
return 0 ;
}
u32
nvbios_cstepEp(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr,
struct nvbios_cstepE *info)
{
u32 data = nvbios_cstepEe(bios, idx, ver, hdr);
memset(info, 0 x00, sizeof (*info));
if (data) {
info->pstate = (nvbios_rd16(bios, data + 0 x00) & 0 x01e0) >> 5 ;
info->index = nvbios_rd08(bios, data + 0 x03);
}
return data;
}
u32
nvbios_cstepEm(struct nvkm_bios *bios, u8 pstate, u8 *ver, u8 *hdr,
struct nvbios_cstepE *info)
{
u32 data, idx = 0 ;
while ((data = nvbios_cstepEp(bios, idx++, ver, hdr, info))) {
if (info->pstate == pstate)
break ;
}
return data;
}
u32
nvbios_cstepXe(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr)
{
u8 cnt, len, xnr, xsz;
u32 data = nvbios_cstepTe(bios, ver, hdr, &cnt, &len, &xnr, &xsz);
if (data && idx < xnr) {
data = data + *hdr + (cnt * len) + (idx * xsz);
*hdr = xsz;
return data;
}
return 0 ;
}
u32
nvbios_cstepXp(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr,
struct nvbios_cstepX *info)
{
u32 data = nvbios_cstepXe(bios, idx, ver, hdr);
memset(info, 0 x00, sizeof (*info));
if (data) {
info->freq = nvbios_rd16(bios, data + 0 x00) * 1000 ;
info->unkn[0 ] = nvbios_rd08(bios, data + 0 x02);
info->unkn[1 ] = nvbios_rd08(bios, data + 0 x03);
info->voltage = nvbios_rd08(bios, data + 0 x04);
}
return data;
}
Messung V0.5 in Prozent C=100 H=95 G=97
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-06)
¤
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