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linux-kernel-test/drivers/video/nvidia/nv_setup.c
Benjamin Herrenschmidt 85f1503aff [PATCH] nvidiafb: Fix mode setting & PPC support 
This patch fixes nvifiafb mode setting code to be closer to what the X
driver does, which actually makes it work on the 5200FX I have access to.
It also fix the routine that gets the EDID from Open Firmware on PPC, it
was broken in various ways and would crash at boot.  Compared to the patch
I posted to linux-fbdev last week, this one just changes a printk to be
closer to the other ones in the driver.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Antonino A. Daplas" <adaplas@hotpop.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:53:49 -08:00

643 lines
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/***************************************************************************\
|* *|
|* Copyright 2003 NVIDIA, Corporation. All rights reserved. *|
|* *|
|* NOTICE TO USER: The source code is copyrighted under U.S. and *|
|* international laws. Users and possessors of this source code are *|
|* hereby granted a nonexclusive, royalty-free copyright license to *|
|* use this code in individual and commercial software. *|
|* *|
|* Any use of this source code must include, in the user documenta- *|
|* tion and internal comments to the code, notices to the end user *|
|* as follows: *|
|* *|
|* Copyright 2003 NVIDIA, Corporation. All rights reserved. *|
|* *|
|* NVIDIA, CORPORATION MAKES NO REPRESENTATION ABOUT THE SUITABILITY *|
|* OF THIS SOURCE CODE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" *|
|* WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND. NVIDIA, CORPOR- *|
|* ATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOURCE CODE, *|
|* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGE- *|
|* MENT, AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL *|
|* NVIDIA, CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT, INCI- *|
|* DENTAL, OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RE- *|
|* SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION *|
|* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF *|
|* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE. *|
|* *|
|* U.S. Government End Users. This source code is a "commercial *|
|* item," as that term is defined at 48 C.F.R. 2.101 (OCT 1995), *|
|* consisting of "commercial computer software" and "commercial *|
|* computer software documentation," as such terms are used in *|
|* 48 C.F.R. 12.212 (SEPT 1995) and is provided to the U.S. Govern- *|
|* ment only as a commercial end item. Consistent with 48 C.F.R. *|
|* 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (JUNE 1995), *|
|* all U.S. Government End Users acquire the source code with only *|
|* those rights set forth herein. *|
|* *|
\***************************************************************************/
/*
* GPL Licensing Note - According to Mark Vojkovich, author of the Xorg/
* XFree86 'nv' driver, this source code is provided under MIT-style licensing
* where the source code is provided "as is" without warranty of any kind.
* The only usage restriction is for the copyright notices to be retained
* whenever code is used.
*
* Antonino Daplas <adaplas@pol.net> 2005-03-11
*/
#include <video/vga.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include "nv_type.h"
#include "nv_local.h"
#include "nv_proto.h"
/*
* Override VGA I/O routines.
*/
void NVWriteCrtc(struct nvidia_par *par, u8 index, u8 value)
{
VGA_WR08(par->PCIO, par->IOBase + 0x04, index);
VGA_WR08(par->PCIO, par->IOBase + 0x05, value);
}
u8 NVReadCrtc(struct nvidia_par *par, u8 index)
{
VGA_WR08(par->PCIO, par->IOBase + 0x04, index);
return (VGA_RD08(par->PCIO, par->IOBase + 0x05));
}
void NVWriteGr(struct nvidia_par *par, u8 index, u8 value)
{
VGA_WR08(par->PVIO, VGA_GFX_I, index);
VGA_WR08(par->PVIO, VGA_GFX_D, value);
}
u8 NVReadGr(struct nvidia_par *par, u8 index)
{
VGA_WR08(par->PVIO, VGA_GFX_I, index);
return (VGA_RD08(par->PVIO, VGA_GFX_D));
}
void NVWriteSeq(struct nvidia_par *par, u8 index, u8 value)
{
VGA_WR08(par->PVIO, VGA_SEQ_I, index);
VGA_WR08(par->PVIO, VGA_SEQ_D, value);
}
u8 NVReadSeq(struct nvidia_par *par, u8 index)
{
VGA_WR08(par->PVIO, VGA_SEQ_I, index);
return (VGA_RD08(par->PVIO, VGA_SEQ_D));
}
void NVWriteAttr(struct nvidia_par *par, u8 index, u8 value)
{
volatile u8 tmp;
tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
if (par->paletteEnabled)
index &= ~0x20;
else
index |= 0x20;
VGA_WR08(par->PCIO, VGA_ATT_IW, index);
VGA_WR08(par->PCIO, VGA_ATT_W, value);
}
u8 NVReadAttr(struct nvidia_par *par, u8 index)
{
volatile u8 tmp;
tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
if (par->paletteEnabled)
index &= ~0x20;
else
index |= 0x20;
VGA_WR08(par->PCIO, VGA_ATT_IW, index);
return (VGA_RD08(par->PCIO, VGA_ATT_R));
}
void NVWriteMiscOut(struct nvidia_par *par, u8 value)
{
VGA_WR08(par->PVIO, VGA_MIS_W, value);
}
u8 NVReadMiscOut(struct nvidia_par *par)
{
return (VGA_RD08(par->PVIO, VGA_MIS_R));
}
#if 0
void NVEnablePalette(struct nvidia_par *par)
{
volatile u8 tmp;
tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
VGA_WR08(par->PCIO, VGA_ATT_IW, 0x00);
par->paletteEnabled = 1;
}
void NVDisablePalette(struct nvidia_par *par)
{
volatile u8 tmp;
tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
VGA_WR08(par->PCIO, VGA_ATT_IW, 0x20);
par->paletteEnabled = 0;
}
#endif /* 0 */
void NVWriteDacMask(struct nvidia_par *par, u8 value)
{
VGA_WR08(par->PDIO, VGA_PEL_MSK, value);
}
#if 0
u8 NVReadDacMask(struct nvidia_par *par)
{
return (VGA_RD08(par->PDIO, VGA_PEL_MSK));
}
#endif /* 0 */
void NVWriteDacReadAddr(struct nvidia_par *par, u8 value)
{
VGA_WR08(par->PDIO, VGA_PEL_IR, value);
}
void NVWriteDacWriteAddr(struct nvidia_par *par, u8 value)
{
VGA_WR08(par->PDIO, VGA_PEL_IW, value);
}
void NVWriteDacData(struct nvidia_par *par, u8 value)
{
VGA_WR08(par->PDIO, VGA_PEL_D, value);
}
u8 NVReadDacData(struct nvidia_par *par)
{
return (VGA_RD08(par->PDIO, VGA_PEL_D));
}
static int NVIsConnected(struct nvidia_par *par, int output)
{
volatile u32 __iomem *PRAMDAC = par->PRAMDAC0;
u32 reg52C, reg608;
int present;
if (output)
PRAMDAC += 0x800;
reg52C = NV_RD32(PRAMDAC, 0x052C);
reg608 = NV_RD32(PRAMDAC, 0x0608);
NV_WR32(PRAMDAC, 0x0608, reg608 & ~0x00010000);
NV_WR32(PRAMDAC, 0x052C, reg52C & 0x0000FEEE);
msleep(1);
NV_WR32(PRAMDAC, 0x052C, NV_RD32(PRAMDAC, 0x052C) | 1);
NV_WR32(par->PRAMDAC0, 0x0610, 0x94050140);
NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) |
0x00001000);
msleep(1);
present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? 1 : 0;
if (present)
printk("nvidiafb: CRTC%i analog found\n", output);
else
printk("nvidiafb: CRTC%i analog not found\n", output);
NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) &
0x0000EFFF);
NV_WR32(PRAMDAC, 0x052C, reg52C);
NV_WR32(PRAMDAC, 0x0608, reg608);
return present;
}
static void NVSelectHeadRegisters(struct nvidia_par *par, int head)
{
if (head) {
par->PCIO = par->PCIO0 + 0x2000;
par->PCRTC = par->PCRTC0 + 0x800;
par->PRAMDAC = par->PRAMDAC0 + 0x800;
par->PDIO = par->PDIO0 + 0x2000;
} else {
par->PCIO = par->PCIO0;
par->PCRTC = par->PCRTC0;
par->PRAMDAC = par->PRAMDAC0;
par->PDIO = par->PDIO0;
}
}
static void nv4GetConfig(struct nvidia_par *par)
{
if (NV_RD32(par->PFB, 0x0000) & 0x00000100) {
par->RamAmountKBytes =
((NV_RD32(par->PFB, 0x0000) >> 12) & 0x0F) * 1024 * 2 +
1024 * 2;
} else {
switch (NV_RD32(par->PFB, 0x0000) & 0x00000003) {
case 0:
par->RamAmountKBytes = 1024 * 32;
break;
case 1:
par->RamAmountKBytes = 1024 * 4;
break;
case 2:
par->RamAmountKBytes = 1024 * 8;
break;
case 3:
default:
par->RamAmountKBytes = 1024 * 16;
break;
}
}
par->CrystalFreqKHz = (NV_RD32(par->PEXTDEV, 0x0000) & 0x00000040) ?
14318 : 13500;
par->CURSOR = &par->PRAMIN[0x1E00];
par->MinVClockFreqKHz = 12000;
par->MaxVClockFreqKHz = 350000;
}
static void nv10GetConfig(struct nvidia_par *par)
{
struct pci_dev *dev;
u32 implementation = par->Chipset & 0x0ff0;
#ifdef __BIG_ENDIAN
/* turn on big endian register access */
if (!(NV_RD32(par->PMC, 0x0004) & 0x01000001)) {
NV_WR32(par->PMC, 0x0004, 0x01000001);
mb();
}
#endif
dev = pci_find_slot(0, 1);
if ((par->Chipset && 0xffff) == 0x01a0) {
int amt = 0;
pci_read_config_dword(dev, 0x7c, &amt);
par->RamAmountKBytes = (((amt >> 6) & 31) + 1) * 1024;
} else if ((par->Chipset & 0xffff) == 0x01f0) {
int amt = 0;
pci_read_config_dword(dev, 0x84, &amt);
par->RamAmountKBytes = (((amt >> 4) & 127) + 1) * 1024;
} else {
par->RamAmountKBytes =
(NV_RD32(par->PFB, 0x020C) & 0xFFF00000) >> 10;
}
par->CrystalFreqKHz = (NV_RD32(par->PEXTDEV, 0x0000) & (1 << 6)) ?
14318 : 13500;
if (par->twoHeads && (implementation != 0x0110)) {
if (NV_RD32(par->PEXTDEV, 0x0000) & (1 << 22))
par->CrystalFreqKHz = 27000;
}
par->CursorStart = (par->RamAmountKBytes - 96) * 1024;
par->CURSOR = NULL; /* can't set this here */
par->MinVClockFreqKHz = 12000;
par->MaxVClockFreqKHz = par->twoStagePLL ? 400000 : 350000;
}
void NVCommonSetup(struct fb_info *info)
{
struct nvidia_par *par = info->par;
struct fb_var_screeninfo var;
u16 implementation = par->Chipset & 0x0ff0;
u8 *edidA = NULL, *edidB = NULL;
struct fb_monspecs monitorA, monitorB;
struct fb_monspecs *monA = NULL, *monB = NULL;
int mobile = 0;
int tvA = 0;
int tvB = 0;
int FlatPanel = -1; /* really means the CRTC is slaved */
int Television = 0;
memset(&monitorA, 0, sizeof(struct fb_monspecs));
memset(&monitorB, 0, sizeof(struct fb_monspecs));
par->PRAMIN = par->REGS + (0x00710000 / 4);
par->PCRTC0 = par->REGS + (0x00600000 / 4);
par->PRAMDAC0 = par->REGS + (0x00680000 / 4);
par->PFB = par->REGS + (0x00100000 / 4);
par->PFIFO = par->REGS + (0x00002000 / 4);
par->PGRAPH = par->REGS + (0x00400000 / 4);
par->PEXTDEV = par->REGS + (0x00101000 / 4);
par->PTIMER = par->REGS + (0x00009000 / 4);
par->PMC = par->REGS + (0x00000000 / 4);
par->FIFO = par->REGS + (0x00800000 / 4);
/* 8 bit registers */
par->PCIO0 = (u8 __iomem *) par->REGS + 0x00601000;
par->PDIO0 = (u8 __iomem *) par->REGS + 0x00681000;
par->PVIO = (u8 __iomem *) par->REGS + 0x000C0000;
par->twoHeads = (par->Architecture >= NV_ARCH_10) &&
(implementation != 0x0100) &&
(implementation != 0x0150) &&
(implementation != 0x01A0) && (implementation != 0x0200);
par->fpScaler = (par->FpScale && par->twoHeads &&
(implementation != 0x0110));
par->twoStagePLL = (implementation == 0x0310) ||
(implementation == 0x0340) || (par->Architecture >= NV_ARCH_40);
par->WaitVSyncPossible = (par->Architecture >= NV_ARCH_10) &&
(implementation != 0x0100);
par->BlendingPossible = ((par->Chipset & 0xffff) != 0x0020);
/* look for known laptop chips */
switch (par->Chipset & 0xffff) {
case 0x0112:
case 0x0174:
case 0x0175:
case 0x0176:
case 0x0177:
case 0x0179:
case 0x017C:
case 0x017D:
case 0x0186:
case 0x0187:
case 0x018D:
case 0x0286:
case 0x028C:
case 0x0316:
case 0x0317:
case 0x031A:
case 0x031B:
case 0x031C:
case 0x031D:
case 0x031E:
case 0x031F:
case 0x0324:
case 0x0325:
case 0x0328:
case 0x0329:
case 0x032C:
case 0x032D:
case 0x0347:
case 0x0348:
case 0x0349:
case 0x034B:
case 0x034C:
case 0x0160:
case 0x0166:
case 0x00C8:
case 0x00CC:
case 0x0144:
case 0x0146:
case 0x0147:
case 0x0148:
mobile = 1;
break;
default:
break;
}
if (par->Architecture == NV_ARCH_04)
nv4GetConfig(par);
else
nv10GetConfig(par);
NVSelectHeadRegisters(par, 0);
NVLockUnlock(par, 0);
par->IOBase = (NVReadMiscOut(par) & 0x01) ? 0x3d0 : 0x3b0;
par->Television = 0;
nvidia_create_i2c_busses(par);
if (!par->twoHeads) {
par->CRTCnumber = 0;
if (nvidia_probe_i2c_connector(info, 1, &edidA))
nvidia_probe_of_connector(info, 1, &edidA);
if (edidA && !fb_parse_edid(edidA, &var)) {
printk("nvidiafb: EDID found from BUS1\n");
monA = &monitorA;
fb_edid_to_monspecs(edidA, monA);
FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
/* NV4 doesn't support FlatPanels */
if ((par->Chipset & 0x0fff) <= 0x0020)
FlatPanel = 0;
} else {
VGA_WR08(par->PCIO, 0x03D4, 0x28);
if (VGA_RD08(par->PCIO, 0x03D5) & 0x80) {
VGA_WR08(par->PCIO, 0x03D4, 0x33);
if (!(VGA_RD08(par->PCIO, 0x03D5) & 0x01))
Television = 1;
FlatPanel = 1;
} else {
FlatPanel = 0;
}
printk("nvidiafb: HW is currently programmed for %s\n",
FlatPanel ? (Television ? "TV" : "DFP") :
"CRT");
}
if (par->FlatPanel == -1) {
par->FlatPanel = FlatPanel;
par->Television = Television;
} else {
printk("nvidiafb: Forcing display type to %s as "
"specified\n", par->FlatPanel ? "DFP" : "CRT");
}
} else {
u8 outputAfromCRTC, outputBfromCRTC;
int CRTCnumber = -1;
u8 slaved_on_A, slaved_on_B;
int analog_on_A, analog_on_B;
u32 oldhead;
u8 cr44;
if (implementation != 0x0110) {
if (NV_RD32(par->PRAMDAC0, 0x0000052C) & 0x100)
outputAfromCRTC = 1;
else
outputAfromCRTC = 0;
if (NV_RD32(par->PRAMDAC0, 0x0000252C) & 0x100)
outputBfromCRTC = 1;
else
outputBfromCRTC = 0;
analog_on_A = NVIsConnected(par, 0);
analog_on_B = NVIsConnected(par, 1);
} else {
outputAfromCRTC = 0;
outputBfromCRTC = 1;
analog_on_A = 0;
analog_on_B = 0;
}
VGA_WR08(par->PCIO, 0x03D4, 0x44);
cr44 = VGA_RD08(par->PCIO, 0x03D5);
VGA_WR08(par->PCIO, 0x03D5, 3);
NVSelectHeadRegisters(par, 1);
NVLockUnlock(par, 0);
VGA_WR08(par->PCIO, 0x03D4, 0x28);
slaved_on_B = VGA_RD08(par->PCIO, 0x03D5) & 0x80;
if (slaved_on_B) {
VGA_WR08(par->PCIO, 0x03D4, 0x33);
tvB = !(VGA_RD08(par->PCIO, 0x03D5) & 0x01);
}
VGA_WR08(par->PCIO, 0x03D4, 0x44);
VGA_WR08(par->PCIO, 0x03D5, 0);
NVSelectHeadRegisters(par, 0);
NVLockUnlock(par, 0);
VGA_WR08(par->PCIO, 0x03D4, 0x28);
slaved_on_A = VGA_RD08(par->PCIO, 0x03D5) & 0x80;
if (slaved_on_A) {
VGA_WR08(par->PCIO, 0x03D4, 0x33);
tvA = !(VGA_RD08(par->PCIO, 0x03D5) & 0x01);
}
oldhead = NV_RD32(par->PCRTC0, 0x00000860);
NV_WR32(par->PCRTC0, 0x00000860, oldhead | 0x00000010);
if (nvidia_probe_i2c_connector(info, 1, &edidA))
nvidia_probe_of_connector(info, 1, &edidA);
if (edidA && !fb_parse_edid(edidA, &var)) {
printk("nvidiafb: EDID found from BUS1\n");
monA = &monitorA;
fb_edid_to_monspecs(edidA, monA);
}
if (nvidia_probe_i2c_connector(info, 2, &edidB))
nvidia_probe_of_connector(info, 2, &edidB);
if (edidB && !fb_parse_edid(edidB, &var)) {
printk("nvidiafb: EDID found from BUS2\n");
monB = &monitorB;
fb_edid_to_monspecs(edidB, monB);
}
if (slaved_on_A && !tvA) {
CRTCnumber = 0;
FlatPanel = 1;
printk("nvidiafb: CRTC 0 is currently programmed for "
"DFP\n");
} else if (slaved_on_B && !tvB) {
CRTCnumber = 1;
FlatPanel = 1;
printk("nvidiafb: CRTC 1 is currently programmed "
"for DFP\n");
} else if (analog_on_A) {
CRTCnumber = outputAfromCRTC;
FlatPanel = 0;
printk("nvidiafb: CRTC %i appears to have a "
"CRT attached\n", CRTCnumber);
} else if (analog_on_B) {
CRTCnumber = outputBfromCRTC;
FlatPanel = 0;
printk("nvidiafb: CRTC %i"
"appears to have a "
"CRT attached\n", CRTCnumber);
} else if (slaved_on_A) {
CRTCnumber = 0;
FlatPanel = 1;
Television = 1;
printk("nvidiafb: CRTC 0 is currently programmed "
"for TV\n");
} else if (slaved_on_B) {
CRTCnumber = 1;
FlatPanel = 1;
Television = 1;
printk("nvidiafb: CRTC 1 is currently programmed for "
"TV\n");
} else if (monA) {
FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
} else if (monB) {
FlatPanel = (monB->input & FB_DISP_DDI) ? 1 : 0;
}
if (par->FlatPanel == -1) {
if (FlatPanel != -1) {
par->FlatPanel = FlatPanel;
par->Television = Television;
} else {
printk("nvidiafb: Unable to detect display "
"type...\n");
if (mobile) {
printk("...On a laptop, assuming "
"DFP\n");
par->FlatPanel = 1;
} else {
printk("...Using default of CRT\n");
par->FlatPanel = 0;
}
}
} else {
printk("nvidiafb: Forcing display type to %s as "
"specified\n", par->FlatPanel ? "DFP" : "CRT");
}
if (par->CRTCnumber == -1) {
if (CRTCnumber != -1)
par->CRTCnumber = CRTCnumber;
else {
printk("nvidiafb: Unable to detect which "
"CRTCNumber...\n");
if (par->FlatPanel)
par->CRTCnumber = 1;
else
par->CRTCnumber = 0;
printk("...Defaulting to CRTCNumber %i\n",
par->CRTCnumber);
}
} else {
printk("nvidiafb: Forcing CRTCNumber %i as "
"specified\n", par->CRTCnumber);
}
if (monA) {
if (((monA->input & FB_DISP_DDI) &&
par->FlatPanel) ||
((!(monA->input & FB_DISP_DDI)) &&
!par->FlatPanel)) {
if (monB) {
fb_destroy_modedb(monB->modedb);
monB = NULL;
}
} else {
fb_destroy_modedb(monA->modedb);
monA = NULL;
}
}
if (monB) {
if (((monB->input & FB_DISP_DDI) &&
!par->FlatPanel) ||
((!(monB->input & FB_DISP_DDI)) &&
par->FlatPanel)) {
fb_destroy_modedb(monB->modedb);
monB = NULL;
} else
monA = monB;
}
if (implementation == 0x0110)
cr44 = par->CRTCnumber * 0x3;
NV_WR32(par->PCRTC0, 0x00000860, oldhead);
VGA_WR08(par->PCIO, 0x03D4, 0x44);
VGA_WR08(par->PCIO, 0x03D5, cr44);
NVSelectHeadRegisters(par, par->CRTCnumber);
}
printk("nvidiafb: Using %s on CRTC %i\n",
par->FlatPanel ? (par->Television ? "TV" : "DFP") : "CRT",
par->CRTCnumber);
if (par->FlatPanel && !par->Television) {
par->fpWidth = NV_RD32(par->PRAMDAC, 0x0820) + 1;
par->fpHeight = NV_RD32(par->PRAMDAC, 0x0800) + 1;
par->fpSyncs = NV_RD32(par->PRAMDAC, 0x0848) & 0x30000033;
printk("Panel size is %i x %i\n", par->fpWidth, par->fpHeight);
}
if (monA)
info->monspecs = *monA;
kfree(edidA);
kfree(edidB);
}
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