1 /***************************************************************************\
3 |* Copyright 2003 NVIDIA, Corporation. All rights reserved. *|
5 |* NOTICE TO USER: The source code is copyrighted under U.S. and *|
6 |* international laws. Users and possessors of this source code are *|
7 |* hereby granted a nonexclusive, royalty-free copyright license to *|
8 |* use this code in individual and commercial software. *|
10 |* Any use of this source code must include, in the user documenta- *|
11 |* tion and internal comments to the code, notices to the end user *|
14 |* Copyright 2003 NVIDIA, Corporation. All rights reserved. *|
16 |* NVIDIA, CORPORATION MAKES NO REPRESENTATION ABOUT THE SUITABILITY *|
17 |* OF THIS SOURCE CODE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" *|
18 |* WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND. NVIDIA, CORPOR- *|
19 |* ATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOURCE CODE, *|
20 |* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGE- *|
21 |* MENT, AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL *|
22 |* NVIDIA, CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT, INCI- *|
23 |* DENTAL, OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RE- *|
24 |* SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION *|
25 |* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF *|
26 |* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE. *|
28 |* U.S. Government End Users. This source code is a "commercial *|
29 |* item," as that term is defined at 48 C.F.R. 2.101 (OCT 1995), *|
30 |* consisting of "commercial computer software" and "commercial *|
31 |* computer software documentation," as such terms are used in *|
32 |* 48 C.F.R. 12.212 (SEPT 1995) and is provided to the U.S. Govern- *|
33 |* ment only as a commercial end item. Consistent with 48 C.F.R. *|
34 |* 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (JUNE 1995), *|
35 |* all U.S. Government End Users acquire the source code with only *|
36 |* those rights set forth herein. *|
38 \***************************************************************************/
41 * GPL Licensing Note - According to Mark Vojkovich, author of the Xorg/
42 * XFree86 'nv' driver, this source code is provided under MIT-style licensing
43 * where the source code is provided "as is" without warranty of any kind.
44 * The only usage restriction is for the copyright notices to be retained
45 * whenever code is used.
47 * Antonino Daplas <adaplas@pol.net> 2005-03-11
50 #include <video/vga.h>
51 #include <linux/delay.h>
52 #include <linux/pci.h>
57 * Override VGA I/O routines.
59 void NVWriteCrtc(struct nvidia_par *par, u8 index, u8 value)
61 VGA_WR08(par->PCIO, par->IOBase + 0x04, index);
62 VGA_WR08(par->PCIO, par->IOBase + 0x05, value);
64 u8 NVReadCrtc(struct nvidia_par *par, u8 index)
66 VGA_WR08(par->PCIO, par->IOBase + 0x04, index);
67 return (VGA_RD08(par->PCIO, par->IOBase + 0x05));
69 void NVWriteGr(struct nvidia_par *par, u8 index, u8 value)
71 VGA_WR08(par->PVIO, VGA_GFX_I, index);
72 VGA_WR08(par->PVIO, VGA_GFX_D, value);
74 u8 NVReadGr(struct nvidia_par *par, u8 index)
76 VGA_WR08(par->PVIO, VGA_GFX_I, index);
77 return (VGA_RD08(par->PVIO, VGA_GFX_D));
79 void NVWriteSeq(struct nvidia_par *par, u8 index, u8 value)
81 VGA_WR08(par->PVIO, VGA_SEQ_I, index);
82 VGA_WR08(par->PVIO, VGA_SEQ_D, value);
84 u8 NVReadSeq(struct nvidia_par *par, u8 index)
86 VGA_WR08(par->PVIO, VGA_SEQ_I, index);
87 return (VGA_RD08(par->PVIO, VGA_SEQ_D));
89 void NVWriteAttr(struct nvidia_par *par, u8 index, u8 value)
93 tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
94 if (par->paletteEnabled)
98 VGA_WR08(par->PCIO, VGA_ATT_IW, index);
99 VGA_WR08(par->PCIO, VGA_ATT_W, value);
101 u8 NVReadAttr(struct nvidia_par *par, u8 index)
105 tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
106 if (par->paletteEnabled)
110 VGA_WR08(par->PCIO, VGA_ATT_IW, index);
111 return (VGA_RD08(par->PCIO, VGA_ATT_R));
113 void NVWriteMiscOut(struct nvidia_par *par, u8 value)
115 VGA_WR08(par->PVIO, VGA_MIS_W, value);
117 u8 NVReadMiscOut(struct nvidia_par *par)
119 return (VGA_RD08(par->PVIO, VGA_MIS_R));
122 void NVEnablePalette(struct nvidia_par *par)
126 tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
127 VGA_WR08(par->PCIO, VGA_ATT_IW, 0x00);
128 par->paletteEnabled = 1;
130 void NVDisablePalette(struct nvidia_par *par)
134 tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
135 VGA_WR08(par->PCIO, VGA_ATT_IW, 0x20);
136 par->paletteEnabled = 0;
139 void NVWriteDacMask(struct nvidia_par *par, u8 value)
141 VGA_WR08(par->PDIO, VGA_PEL_MSK, value);
144 u8 NVReadDacMask(struct nvidia_par *par)
146 return (VGA_RD08(par->PDIO, VGA_PEL_MSK));
149 void NVWriteDacReadAddr(struct nvidia_par *par, u8 value)
151 VGA_WR08(par->PDIO, VGA_PEL_IR, value);
153 void NVWriteDacWriteAddr(struct nvidia_par *par, u8 value)
155 VGA_WR08(par->PDIO, VGA_PEL_IW, value);
157 void NVWriteDacData(struct nvidia_par *par, u8 value)
159 VGA_WR08(par->PDIO, VGA_PEL_D, value);
161 u8 NVReadDacData(struct nvidia_par *par)
163 return (VGA_RD08(par->PDIO, VGA_PEL_D));
166 static int NVIsConnected(struct nvidia_par *par, int output)
168 volatile u32 __iomem *PRAMDAC = par->PRAMDAC0;
175 reg52C = NV_RD32(PRAMDAC, 0x052C);
176 reg608 = NV_RD32(PRAMDAC, 0x0608);
178 NV_WR32(PRAMDAC, 0x0608, reg608 & ~0x00010000);
180 NV_WR32(PRAMDAC, 0x052C, reg52C & 0x0000FEEE);
182 NV_WR32(PRAMDAC, 0x052C, NV_RD32(PRAMDAC, 0x052C) | 1);
184 NV_WR32(par->PRAMDAC0, 0x0610, 0x94050140);
185 NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) |
190 present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? 1 : 0;
193 printk("nvidiafb: CRTC%i analog found\n", output);
195 printk("nvidiafb: CRTC%i analog not found\n", output);
197 NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) &
200 NV_WR32(PRAMDAC, 0x052C, reg52C);
201 NV_WR32(PRAMDAC, 0x0608, reg608);
206 static void NVSelectHeadRegisters(struct nvidia_par *par, int head)
209 par->PCIO = par->PCIO0 + 0x2000;
210 par->PCRTC = par->PCRTC0 + 0x800;
211 par->PRAMDAC = par->PRAMDAC0 + 0x800;
212 par->PDIO = par->PDIO0 + 0x2000;
214 par->PCIO = par->PCIO0;
215 par->PCRTC = par->PCRTC0;
216 par->PRAMDAC = par->PRAMDAC0;
217 par->PDIO = par->PDIO0;
221 static void nv4GetConfig(struct nvidia_par *par)
223 if (NV_RD32(par->PFB, 0x0000) & 0x00000100) {
224 par->RamAmountKBytes =
225 ((NV_RD32(par->PFB, 0x0000) >> 12) & 0x0F) * 1024 * 2 +
228 switch (NV_RD32(par->PFB, 0x0000) & 0x00000003) {
230 par->RamAmountKBytes = 1024 * 32;
233 par->RamAmountKBytes = 1024 * 4;
236 par->RamAmountKBytes = 1024 * 8;
240 par->RamAmountKBytes = 1024 * 16;
244 par->CrystalFreqKHz = (NV_RD32(par->PEXTDEV, 0x0000) & 0x00000040) ?
246 par->CURSOR = &par->PRAMIN[0x1E00];
247 par->MinVClockFreqKHz = 12000;
248 par->MaxVClockFreqKHz = 350000;
251 static void nv10GetConfig(struct nvidia_par *par)
254 u32 implementation = par->Chipset & 0x0ff0;
257 /* turn on big endian register access */
258 if (!(NV_RD32(par->PMC, 0x0004) & 0x01000001)) {
259 NV_WR32(par->PMC, 0x0004, 0x01000001);
264 dev = pci_find_slot(0, 1);
265 if ((par->Chipset && 0xffff) == 0x01a0) {
268 pci_read_config_dword(dev, 0x7c, &amt);
269 par->RamAmountKBytes = (((amt >> 6) & 31) + 1) * 1024;
270 } else if ((par->Chipset & 0xffff) == 0x01f0) {
273 pci_read_config_dword(dev, 0x84, &amt);
274 par->RamAmountKBytes = (((amt >> 4) & 127) + 1) * 1024;
276 par->RamAmountKBytes =
277 (NV_RD32(par->PFB, 0x020C) & 0xFFF00000) >> 10;
280 par->CrystalFreqKHz = (NV_RD32(par->PEXTDEV, 0x0000) & (1 << 6)) ?
283 if (par->twoHeads && (implementation != 0x0110)) {
284 if (NV_RD32(par->PEXTDEV, 0x0000) & (1 << 22))
285 par->CrystalFreqKHz = 27000;
288 par->CURSOR = NULL; /* can't set this here */
289 par->MinVClockFreqKHz = 12000;
290 par->MaxVClockFreqKHz = par->twoStagePLL ? 400000 : 350000;
293 int NVCommonSetup(struct fb_info *info)
295 struct nvidia_par *par = info->par;
296 struct fb_var_screeninfo *var;
297 u16 implementation = par->Chipset & 0x0ff0;
298 u8 *edidA = NULL, *edidB = NULL;
299 struct fb_monspecs *monitorA, *monitorB;
300 struct fb_monspecs *monA = NULL, *monB = NULL;
304 int FlatPanel = -1; /* really means the CRTC is slaved */
308 var = kzalloc(sizeof(struct fb_var_screeninfo), GFP_KERNEL);
309 monitorA = kzalloc(sizeof(struct fb_monspecs), GFP_KERNEL);
310 monitorB = kzalloc(sizeof(struct fb_monspecs), GFP_KERNEL);
312 if (!var || !monitorA || !monitorB) {
317 par->PRAMIN = par->REGS + (0x00710000 / 4);
318 par->PCRTC0 = par->REGS + (0x00600000 / 4);
319 par->PRAMDAC0 = par->REGS + (0x00680000 / 4);
320 par->PFB = par->REGS + (0x00100000 / 4);
321 par->PFIFO = par->REGS + (0x00002000 / 4);
322 par->PGRAPH = par->REGS + (0x00400000 / 4);
323 par->PEXTDEV = par->REGS + (0x00101000 / 4);
324 par->PTIMER = par->REGS + (0x00009000 / 4);
325 par->PMC = par->REGS + (0x00000000 / 4);
326 par->FIFO = par->REGS + (0x00800000 / 4);
328 /* 8 bit registers */
329 par->PCIO0 = (u8 __iomem *) par->REGS + 0x00601000;
330 par->PDIO0 = (u8 __iomem *) par->REGS + 0x00681000;
331 par->PVIO = (u8 __iomem *) par->REGS + 0x000C0000;
333 par->twoHeads = (par->Architecture >= NV_ARCH_10) &&
334 (implementation != 0x0100) &&
335 (implementation != 0x0150) &&
336 (implementation != 0x01A0) && (implementation != 0x0200);
338 par->fpScaler = (par->FpScale && par->twoHeads &&
339 (implementation != 0x0110));
341 par->twoStagePLL = (implementation == 0x0310) ||
342 (implementation == 0x0340) || (par->Architecture >= NV_ARCH_40);
344 par->WaitVSyncPossible = (par->Architecture >= NV_ARCH_10) &&
345 (implementation != 0x0100);
347 par->BlendingPossible = ((par->Chipset & 0xffff) != 0x0020);
349 /* look for known laptop chips */
350 switch (par->Chipset & 0xffff) {
399 if (par->Architecture == NV_ARCH_04)
404 NVSelectHeadRegisters(par, 0);
406 NVLockUnlock(par, 0);
408 par->IOBase = (NVReadMiscOut(par) & 0x01) ? 0x3d0 : 0x3b0;
412 nvidia_create_i2c_busses(par);
413 if (!par->twoHeads) {
415 if (nvidia_probe_i2c_connector(info, 1, &edidA))
416 nvidia_probe_of_connector(info, 1, &edidA);
417 if (edidA && !fb_parse_edid(edidA, var)) {
418 printk("nvidiafb: EDID found from BUS1\n");
420 fb_edid_to_monspecs(edidA, monA);
421 FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
423 /* NV4 doesn't support FlatPanels */
424 if ((par->Chipset & 0x0fff) <= 0x0020)
427 VGA_WR08(par->PCIO, 0x03D4, 0x28);
428 if (VGA_RD08(par->PCIO, 0x03D5) & 0x80) {
429 VGA_WR08(par->PCIO, 0x03D4, 0x33);
430 if (!(VGA_RD08(par->PCIO, 0x03D5) & 0x01))
436 printk("nvidiafb: HW is currently programmed for %s\n",
437 FlatPanel ? (Television ? "TV" : "DFP") :
441 if (par->FlatPanel == -1) {
442 par->FlatPanel = FlatPanel;
443 par->Television = Television;
445 printk("nvidiafb: Forcing display type to %s as "
446 "specified\n", par->FlatPanel ? "DFP" : "CRT");
449 u8 outputAfromCRTC, outputBfromCRTC;
451 u8 slaved_on_A, slaved_on_B;
452 int analog_on_A, analog_on_B;
456 if (implementation != 0x0110) {
457 if (NV_RD32(par->PRAMDAC0, 0x0000052C) & 0x100)
461 if (NV_RD32(par->PRAMDAC0, 0x0000252C) & 0x100)
465 analog_on_A = NVIsConnected(par, 0);
466 analog_on_B = NVIsConnected(par, 1);
474 VGA_WR08(par->PCIO, 0x03D4, 0x44);
475 cr44 = VGA_RD08(par->PCIO, 0x03D5);
477 VGA_WR08(par->PCIO, 0x03D5, 3);
478 NVSelectHeadRegisters(par, 1);
479 NVLockUnlock(par, 0);
481 VGA_WR08(par->PCIO, 0x03D4, 0x28);
482 slaved_on_B = VGA_RD08(par->PCIO, 0x03D5) & 0x80;
484 VGA_WR08(par->PCIO, 0x03D4, 0x33);
485 tvB = !(VGA_RD08(par->PCIO, 0x03D5) & 0x01);
488 VGA_WR08(par->PCIO, 0x03D4, 0x44);
489 VGA_WR08(par->PCIO, 0x03D5, 0);
490 NVSelectHeadRegisters(par, 0);
491 NVLockUnlock(par, 0);
493 VGA_WR08(par->PCIO, 0x03D4, 0x28);
494 slaved_on_A = VGA_RD08(par->PCIO, 0x03D5) & 0x80;
496 VGA_WR08(par->PCIO, 0x03D4, 0x33);
497 tvA = !(VGA_RD08(par->PCIO, 0x03D5) & 0x01);
500 oldhead = NV_RD32(par->PCRTC0, 0x00000860);
501 NV_WR32(par->PCRTC0, 0x00000860, oldhead | 0x00000010);
503 if (nvidia_probe_i2c_connector(info, 1, &edidA))
504 nvidia_probe_of_connector(info, 1, &edidA);
505 if (edidA && !fb_parse_edid(edidA, var)) {
506 printk("nvidiafb: EDID found from BUS1\n");
508 fb_edid_to_monspecs(edidA, monA);
511 if (nvidia_probe_i2c_connector(info, 2, &edidB))
512 nvidia_probe_of_connector(info, 2, &edidB);
513 if (edidB && !fb_parse_edid(edidB, var)) {
514 printk("nvidiafb: EDID found from BUS2\n");
516 fb_edid_to_monspecs(edidB, monB);
519 if (slaved_on_A && !tvA) {
522 printk("nvidiafb: CRTC 0 is currently programmed for "
524 } else if (slaved_on_B && !tvB) {
527 printk("nvidiafb: CRTC 1 is currently programmed "
529 } else if (analog_on_A) {
530 CRTCnumber = outputAfromCRTC;
532 printk("nvidiafb: CRTC %i appears to have a "
533 "CRT attached\n", CRTCnumber);
534 } else if (analog_on_B) {
535 CRTCnumber = outputBfromCRTC;
537 printk("nvidiafb: CRTC %i"
539 "CRT attached\n", CRTCnumber);
540 } else if (slaved_on_A) {
544 printk("nvidiafb: CRTC 0 is currently programmed "
546 } else if (slaved_on_B) {
550 printk("nvidiafb: CRTC 1 is currently programmed for "
553 FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
555 FlatPanel = (monB->input & FB_DISP_DDI) ? 1 : 0;
558 if (par->FlatPanel == -1) {
559 if (FlatPanel != -1) {
560 par->FlatPanel = FlatPanel;
561 par->Television = Television;
563 printk("nvidiafb: Unable to detect display "
566 printk("...On a laptop, assuming "
570 printk("...Using default of CRT\n");
575 printk("nvidiafb: Forcing display type to %s as "
576 "specified\n", par->FlatPanel ? "DFP" : "CRT");
579 if (par->CRTCnumber == -1) {
580 if (CRTCnumber != -1)
581 par->CRTCnumber = CRTCnumber;
583 printk("nvidiafb: Unable to detect which "
589 printk("...Defaulting to CRTCNumber %i\n",
593 printk("nvidiafb: Forcing CRTCNumber %i as "
594 "specified\n", par->CRTCnumber);
598 if (((monA->input & FB_DISP_DDI) &&
600 ((!(monA->input & FB_DISP_DDI)) &&
603 fb_destroy_modedb(monB->modedb);
607 fb_destroy_modedb(monA->modedb);
613 if (((monB->input & FB_DISP_DDI) &&
615 ((!(monB->input & FB_DISP_DDI)) &&
617 fb_destroy_modedb(monB->modedb);
623 if (implementation == 0x0110)
624 cr44 = par->CRTCnumber * 0x3;
626 NV_WR32(par->PCRTC0, 0x00000860, oldhead);
628 VGA_WR08(par->PCIO, 0x03D4, 0x44);
629 VGA_WR08(par->PCIO, 0x03D5, cr44);
630 NVSelectHeadRegisters(par, par->CRTCnumber);
633 printk("nvidiafb: Using %s on CRTC %i\n",
634 par->FlatPanel ? (par->Television ? "TV" : "DFP") : "CRT",
637 if (par->FlatPanel && !par->Television) {
638 par->fpWidth = NV_RD32(par->PRAMDAC, 0x0820) + 1;
639 par->fpHeight = NV_RD32(par->PRAMDAC, 0x0800) + 1;
640 par->fpSyncs = NV_RD32(par->PRAMDAC, 0x0848) & 0x30000033;
642 printk("Panel size is %i x %i\n", par->fpWidth, par->fpHeight);
646 info->monspecs = *monA;