175 lines
4.7 KiB
C
175 lines
4.7 KiB
C
/*
|
|
* Copyright 2012 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/disp.h>
|
|
|
|
u16
|
|
nvbios_disp_table(struct nvkm_bios *bios,
|
|
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *sub)
|
|
{
|
|
struct bit_entry U;
|
|
|
|
if (!bit_entry(bios, 'U', &U)) {
|
|
if (U.version == 1) {
|
|
u16 data = nvbios_rd16(bios, U.offset);
|
|
if (data) {
|
|
*ver = nvbios_rd08(bios, data + 0x00);
|
|
switch (*ver) {
|
|
case 0x20:
|
|
case 0x21:
|
|
case 0x22:
|
|
*hdr = nvbios_rd08(bios, data + 0x01);
|
|
*len = nvbios_rd08(bios, data + 0x02);
|
|
*cnt = nvbios_rd08(bios, data + 0x03);
|
|
*sub = nvbios_rd08(bios, data + 0x04);
|
|
return data;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0x0000;
|
|
}
|
|
|
|
u16
|
|
nvbios_disp_entry(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len, u8 *sub)
|
|
{
|
|
u8 hdr, cnt;
|
|
u16 data = nvbios_disp_table(bios, ver, &hdr, &cnt, len, sub);
|
|
if (data && idx < cnt)
|
|
return data + hdr + (idx * *len);
|
|
*ver = 0x00;
|
|
return 0x0000;
|
|
}
|
|
|
|
u16
|
|
nvbios_disp_parse(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len, u8 *sub,
|
|
struct nvbios_disp *info)
|
|
{
|
|
u16 data = nvbios_disp_entry(bios, idx, ver, len, sub);
|
|
if (data && *len >= 2) {
|
|
info->data = nvbios_rd16(bios, data + 0);
|
|
return data;
|
|
}
|
|
return 0x0000;
|
|
}
|
|
|
|
u16
|
|
nvbios_outp_entry(struct nvkm_bios *bios, u8 idx,
|
|
u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
|
|
{
|
|
struct nvbios_disp info;
|
|
u16 data = nvbios_disp_parse(bios, idx, ver, len, hdr, &info);
|
|
if (data) {
|
|
*cnt = nvbios_rd08(bios, info.data + 0x05);
|
|
*len = 0x06;
|
|
data = info.data;
|
|
}
|
|
return data;
|
|
}
|
|
|
|
u16
|
|
nvbios_outp_parse(struct nvkm_bios *bios, u8 idx,
|
|
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_outp *info)
|
|
{
|
|
u16 data = nvbios_outp_entry(bios, idx, ver, hdr, cnt, len);
|
|
if (data && *hdr >= 0x0a) {
|
|
info->type = nvbios_rd16(bios, data + 0x00);
|
|
info->mask = nvbios_rd32(bios, data + 0x02);
|
|
if (*ver <= 0x20) /* match any link */
|
|
info->mask |= 0x00c0;
|
|
info->script[0] = nvbios_rd16(bios, data + 0x06);
|
|
info->script[1] = nvbios_rd16(bios, data + 0x08);
|
|
info->script[2] = 0x0000;
|
|
if (*hdr >= 0x0c)
|
|
info->script[2] = nvbios_rd16(bios, data + 0x0a);
|
|
return data;
|
|
}
|
|
return 0x0000;
|
|
}
|
|
|
|
u16
|
|
nvbios_outp_match(struct nvkm_bios *bios, u16 type, u16 mask,
|
|
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_outp *info)
|
|
{
|
|
u16 data, idx = 0;
|
|
while ((data = nvbios_outp_parse(bios, idx++, ver, hdr, cnt, len, info)) || *ver) {
|
|
if (data && info->type == type) {
|
|
if ((info->mask & mask) == mask)
|
|
break;
|
|
}
|
|
}
|
|
return data;
|
|
}
|
|
|
|
u16
|
|
nvbios_ocfg_entry(struct nvkm_bios *bios, u16 outp, u8 idx,
|
|
u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
|
|
{
|
|
if (idx < *cnt)
|
|
return outp + *hdr + (idx * *len);
|
|
return 0x0000;
|
|
}
|
|
|
|
u16
|
|
nvbios_ocfg_parse(struct nvkm_bios *bios, u16 outp, u8 idx,
|
|
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ocfg *info)
|
|
{
|
|
u16 data = nvbios_ocfg_entry(bios, outp, idx, ver, hdr, cnt, len);
|
|
if (data) {
|
|
info->proto = nvbios_rd08(bios, data + 0x00);
|
|
info->flags = nvbios_rd16(bios, data + 0x01);
|
|
info->clkcmp[0] = nvbios_rd16(bios, data + 0x02);
|
|
info->clkcmp[1] = nvbios_rd16(bios, data + 0x04);
|
|
}
|
|
return data;
|
|
}
|
|
|
|
u16
|
|
nvbios_ocfg_match(struct nvkm_bios *bios, u16 outp, u8 proto, u8 flags,
|
|
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ocfg *info)
|
|
{
|
|
u16 data, idx = 0;
|
|
while ((data = nvbios_ocfg_parse(bios, outp, idx++, ver, hdr, cnt, len, info))) {
|
|
if ((info->proto == proto || info->proto == 0xff) &&
|
|
(info->flags == flags))
|
|
break;
|
|
}
|
|
return data;
|
|
}
|
|
|
|
u16
|
|
nvbios_oclk_match(struct nvkm_bios *bios, u16 cmp, u32 khz)
|
|
{
|
|
while (cmp) {
|
|
if (khz / 10 >= nvbios_rd16(bios, cmp + 0x00))
|
|
return nvbios_rd16(bios, cmp + 0x02);
|
|
cmp += 0x04;
|
|
}
|
|
return 0x0000;
|
|
}
|