drm/nouveau/bios: implement BIT 'U' table (and subtable) parsing in core
This will, in the near future, replace what's currently in the DRM nouveau_bios.c code. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs
parent
b5a794b0f1
commit
b6caea5058
|
|
@ -29,6 +29,7 @@ nouveau-y += core/subdev/bios/base.o
|
|||
nouveau-y += core/subdev/bios/bit.o
|
||||
nouveau-y += core/subdev/bios/conn.o
|
||||
nouveau-y += core/subdev/bios/dcb.o
|
||||
nouveau-y += core/subdev/bios/disp.o
|
||||
nouveau-y += core/subdev/bios/dp.o
|
||||
nouveau-y += core/subdev/bios/extdev.o
|
||||
nouveau-y += core/subdev/bios/gpio.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,48 @@
|
|||
#ifndef __NVBIOS_DISP_H__
|
||||
#define __NVBIOS_DISP_H__
|
||||
|
||||
u16 nvbios_disp_table(struct nouveau_bios *,
|
||||
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *sub);
|
||||
|
||||
struct nvbios_disp {
|
||||
u16 data;
|
||||
};
|
||||
|
||||
u16 nvbios_disp_entry(struct nouveau_bios *, u8 idx,
|
||||
u8 *ver, u8 *hdr__, u8 *sub);
|
||||
u16 nvbios_disp_parse(struct nouveau_bios *, u8 idx,
|
||||
u8 *ver, u8 *hdr__, u8 *sub,
|
||||
struct nvbios_disp *);
|
||||
|
||||
struct nvbios_outp {
|
||||
u16 type;
|
||||
u16 mask;
|
||||
u16 script[3];
|
||||
};
|
||||
|
||||
u16 nvbios_outp_entry(struct nouveau_bios *, u8 idx,
|
||||
u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
|
||||
u16 nvbios_outp_parse(struct nouveau_bios *, u8 idx,
|
||||
u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
|
||||
struct nvbios_outp *);
|
||||
u16 nvbios_outp_match(struct nouveau_bios *, u16 type, u16 mask,
|
||||
u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
|
||||
struct nvbios_outp *);
|
||||
|
||||
|
||||
struct nvbios_ocfg {
|
||||
u16 match;
|
||||
u16 clkcmp[2];
|
||||
};
|
||||
|
||||
u16 nvbios_ocfg_entry(struct nouveau_bios *, u16 outp, u8 idx,
|
||||
u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
|
||||
u16 nvbios_ocfg_parse(struct nouveau_bios *, u16 outp, u8 idx,
|
||||
u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
|
||||
struct nvbios_ocfg *);
|
||||
u16 nvbios_ocfg_match(struct nouveau_bios *, u16 outp, u16 type,
|
||||
u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
|
||||
struct nvbios_ocfg *);
|
||||
u16 nvbios_oclk_match(struct nouveau_bios *, u16 cmp, u32 khz);
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,178 @@
|
|||
/*
|
||||
* 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 nouveau_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 = nv_ro16(bios, U.offset);
|
||||
if (data) {
|
||||
*ver = nv_ro08(bios, data + 0x00);
|
||||
switch (*ver) {
|
||||
case 0x20:
|
||||
case 0x21:
|
||||
*hdr = nv_ro08(bios, data + 0x01);
|
||||
*len = nv_ro08(bios, data + 0x02);
|
||||
*cnt = nv_ro08(bios, data + 0x03);
|
||||
*sub = nv_ro08(bios, data + 0x04);
|
||||
return data;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return 0x0000;
|
||||
}
|
||||
|
||||
u16
|
||||
nvbios_disp_entry(struct nouveau_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 nouveau_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 = nv_ro16(bios, data + 0);
|
||||
return data;
|
||||
}
|
||||
return 0x0000;
|
||||
}
|
||||
|
||||
u16
|
||||
nvbios_outp_entry(struct nouveau_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 = nv_ro08(bios, info.data + 0x05);
|
||||
*len = 0x06;
|
||||
data = info.data;
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
u16
|
||||
nvbios_outp_parse(struct nouveau_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 = nv_ro16(bios, data + 0x00);
|
||||
info->mask = nv_ro32(bios, data + 0x02);
|
||||
if (*ver <= 0x20) /* match any link */
|
||||
info->mask |= 0x00c0;
|
||||
info->script[0] = nv_ro16(bios, data + 0x06);
|
||||
info->script[1] = nv_ro16(bios, data + 0x08);
|
||||
info->script[2] = 0x0000;
|
||||
if (*hdr >= 0x0c)
|
||||
info->script[2] = nv_ro16(bios, data + 0x0a);
|
||||
return data;
|
||||
}
|
||||
return 0x0000;
|
||||
}
|
||||
|
||||
u16
|
||||
nvbios_outp_match(struct nouveau_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 nouveau_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 nouveau_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->match = nv_ro16(bios, data + 0x00);
|
||||
info->clkcmp[0] = nv_ro16(bios, data + 0x02);
|
||||
info->clkcmp[1] = nv_ro16(bios, data + 0x04);
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
u16
|
||||
nvbios_ocfg_match(struct nouveau_bios *bios, u16 outp, u16 type,
|
||||
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->match == type)
|
||||
break;
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
u16
|
||||
nvbios_oclk_match(struct nouveau_bios *bios, u16 cmp, u32 khz)
|
||||
{
|
||||
while (cmp) {
|
||||
if (khz / 10 >= nv_ro16(bios, cmp + 0x00))
|
||||
return nv_ro16(bios, cmp + 0x02);
|
||||
cmp += 0x04;
|
||||
}
|
||||
return 0x0000;
|
||||
}
|
||||
Loading…
Reference in New Issue