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>
53 #include <linux/slab.h>
58 * Override VGA I/O routines.
60 void NVWriteCrtc(struct nvidia_par *par, u8 index, u8 value)
62 VGA_WR08(par->PCIO, par->IOBase + 0x04, index);
63 VGA_WR08(par->PCIO, par->IOBase + 0x05, value);
65 u8 NVReadCrtc(struct nvidia_par *par, u8 index)
67 VGA_WR08(par->PCIO, par->IOBase + 0x04, index);
68 return (VGA_RD08(par->PCIO, par->IOBase + 0x05));
70 void NVWriteGr(struct nvidia_par *par, u8 index, u8 value)
72 VGA_WR08(par->PVIO, VGA_GFX_I, index);
73 VGA_WR08(par->PVIO, VGA_GFX_D, value);
75 u8 NVReadGr(struct nvidia_par *par, u8 index)
77 VGA_WR08(par->PVIO, VGA_GFX_I, index);
78 return (VGA_RD08(par->PVIO, VGA_GFX_D));
80 void NVWriteSeq(struct nvidia_par *par, u8 index, u8 value)
82 VGA_WR08(par->PVIO, VGA_SEQ_I, index);
83 VGA_WR08(par->PVIO, VGA_SEQ_D, value);
85 u8 NVReadSeq(struct nvidia_par *par, u8 index)
87 VGA_WR08(par->PVIO, VGA_SEQ_I, index);
88 return (VGA_RD08(par->PVIO, VGA_SEQ_D));
90 void NVWriteAttr(struct nvidia_par *par, u8 index, u8 value)
94 tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
95 if (par->paletteEnabled)
99 VGA_WR08(par->PCIO, VGA_ATT_IW, index);
100 VGA_WR08(par->PCIO, VGA_ATT_W, value);
102 u8 NVReadAttr(struct nvidia_par *par, u8 index)
106 tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
107 if (par->paletteEnabled)
111 VGA_WR08(par->PCIO, VGA_ATT_IW, index);
112 return (VGA_RD08(par->PCIO, VGA_ATT_R));
114 void NVWriteMiscOut(struct nvidia_par *par, u8 value)
116 VGA_WR08(par->PVIO, VGA_MIS_W, value);
118 u8 NVReadMiscOut(struct nvidia_par *par)
120 return (VGA_RD08(par->PVIO, VGA_MIS_R));
123 void NVEnablePalette(struct nvidia_par *par)
127 tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
128 VGA_WR08(par->PCIO, VGA_ATT_IW, 0x00);
129 par->paletteEnabled = 1;
131 void NVDisablePalette(struct nvidia_par *par)
135 tmp = VGA_RD08(par->PCIO, par->IOBase + 0x0a);
136 VGA_WR08(par->PCIO, VGA_ATT_IW, 0x20);
137 par->paletteEnabled = 0;
140 void NVWriteDacMask(struct nvidia_par *par, u8 value)
142 VGA_WR08(par->PDIO, VGA_PEL_MSK, value);
145 u8 NVReadDacMask(struct nvidia_par *par)
147 return (VGA_RD08(par->PDIO, VGA_PEL_MSK));
150 void NVWriteDacReadAddr(struct nvidia_par *par, u8 value)
152 VGA_WR08(par->PDIO, VGA_PEL_IR, value);
154 void NVWriteDacWriteAddr(struct nvidia_par *par, u8 value)
156 VGA_WR08(par->PDIO, VGA_PEL_IW, value);
158 void NVWriteDacData(struct nvidia_par *par, u8 value)
160 VGA_WR08(par->PDIO, VGA_PEL_D, value);
162 u8 NVReadDacData(struct nvidia_par *par)
164 return (VGA_RD08(par->PDIO, VGA_PEL_D));
167 static int NVIsConnected(struct nvidia_par *par, int output)
169 volatile u32 __iomem *PRAMDAC = par->PRAMDAC0;
170 u32 reg52C, reg608, dac0_reg608 = 0;
174 dac0_reg608 = NV_RD32(PRAMDAC, 0x0608);
178 reg52C = NV_RD32(PRAMDAC, 0x052C);
179 reg608 = NV_RD32(PRAMDAC, 0x0608);
181 NV_WR32(PRAMDAC, 0x0608, reg608 & ~0x00010000);
183 NV_WR32(PRAMDAC, 0x052C, reg52C & 0x0000FEEE);
185 NV_WR32(PRAMDAC, 0x052C, NV_RD32(PRAMDAC, 0x052C) | 1);
187 NV_WR32(par->PRAMDAC0, 0x0610, 0x94050140);
188 NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) |
193 present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? 1 : 0;
196 printk("nvidiafb: CRTC%i analog found\n", output);
198 printk("nvidiafb: CRTC%i analog not found\n", output);
201 NV_WR32(par->PRAMDAC0, 0x0608, dac0_reg608);
203 NV_WR32(PRAMDAC, 0x052C, reg52C);
204 NV_WR32(PRAMDAC, 0x0608, reg608);
209 static void NVSelectHeadRegisters(struct nvidia_par *par, int head)
212 par->PCIO = par->PCIO0 + 0x2000;
213 par->PCRTC = par->PCRTC0 + 0x800;
214 par->PRAMDAC = par->PRAMDAC0 + 0x800;
215 par->PDIO = par->PDIO0 + 0x2000;
217 par->PCIO = par->PCIO0;
218 par->PCRTC = par->PCRTC0;
219 par->PRAMDAC = par->PRAMDAC0;
220 par->PDIO = par->PDIO0;
224 static void nv4GetConfig(struct nvidia_par *par)
226 if (NV_RD32(par->PFB, 0x0000) & 0x00000100) {
227 par->RamAmountKBytes =
228 ((NV_RD32(par->PFB, 0x0000) >> 12) & 0x0F) * 1024 * 2 +
231 switch (NV_RD32(par->PFB, 0x0000) & 0x00000003) {
233 par->RamAmountKBytes = 1024 * 32;
236 par->RamAmountKBytes = 1024 * 4;
239 par->RamAmountKBytes = 1024 * 8;
243 par->RamAmountKBytes = 1024 * 16;
247 par->CrystalFreqKHz = (NV_RD32(par->PEXTDEV, 0x0000) & 0x00000040) ?
249 par->CURSOR = &par->PRAMIN[0x1E00];
250 par->MinVClockFreqKHz = 12000;
251 par->MaxVClockFreqKHz = 350000;
254 static void nv10GetConfig(struct nvidia_par *par)
257 u32 implementation = par->Chipset & 0x0ff0;
260 /* turn on big endian register access */
261 if (!(NV_RD32(par->PMC, 0x0004) & 0x01000001)) {
262 NV_WR32(par->PMC, 0x0004, 0x01000001);
267 dev = pci_get_domain_bus_and_slot(pci_domain_nr(par->pci_dev->bus),
269 if ((par->Chipset & 0xffff) == 0x01a0) {
272 pci_read_config_dword(dev, 0x7c, &amt);
273 par->RamAmountKBytes = (((amt >> 6) & 31) + 1) * 1024;
274 } else if ((par->Chipset & 0xffff) == 0x01f0) {
277 pci_read_config_dword(dev, 0x84, &amt);
278 par->RamAmountKBytes = (((amt >> 4) & 127) + 1) * 1024;
280 par->RamAmountKBytes =
281 (NV_RD32(par->PFB, 0x020C) & 0xFFF00000) >> 10;
285 par->CrystalFreqKHz = (NV_RD32(par->PEXTDEV, 0x0000) & (1 << 6)) ?
288 if (par->twoHeads && (implementation != 0x0110)) {
289 if (NV_RD32(par->PEXTDEV, 0x0000) & (1 << 22))
290 par->CrystalFreqKHz = 27000;
293 par->CURSOR = NULL; /* can't set this here */
294 par->MinVClockFreqKHz = 12000;
295 par->MaxVClockFreqKHz = par->twoStagePLL ? 400000 : 350000;
298 int NVCommonSetup(struct fb_info *info)
300 struct nvidia_par *par = info->par;
301 struct fb_var_screeninfo *var;
302 u16 implementation = par->Chipset & 0x0ff0;
303 u8 *edidA = NULL, *edidB = NULL;
304 struct fb_monspecs *monitorA, *monitorB;
305 struct fb_monspecs *monA = NULL, *monB = NULL;
309 int FlatPanel = -1; /* really means the CRTC is slaved */
313 var = kzalloc(sizeof(struct fb_var_screeninfo), GFP_KERNEL);
314 monitorA = kzalloc(sizeof(struct fb_monspecs), GFP_KERNEL);
315 monitorB = kzalloc(sizeof(struct fb_monspecs), GFP_KERNEL);
317 if (!var || !monitorA || !monitorB) {
322 par->PRAMIN = par->REGS + (0x00710000 / 4);
323 par->PCRTC0 = par->REGS + (0x00600000 / 4);
324 par->PRAMDAC0 = par->REGS + (0x00680000 / 4);
325 par->PFB = par->REGS + (0x00100000 / 4);
326 par->PFIFO = par->REGS + (0x00002000 / 4);
327 par->PGRAPH = par->REGS + (0x00400000 / 4);
328 par->PEXTDEV = par->REGS + (0x00101000 / 4);
329 par->PTIMER = par->REGS + (0x00009000 / 4);
330 par->PMC = par->REGS + (0x00000000 / 4);
331 par->FIFO = par->REGS + (0x00800000 / 4);
333 /* 8 bit registers */
334 par->PCIO0 = (u8 __iomem *) par->REGS + 0x00601000;
335 par->PDIO0 = (u8 __iomem *) par->REGS + 0x00681000;
336 par->PVIO = (u8 __iomem *) par->REGS + 0x000C0000;
338 par->twoHeads = (par->Architecture >= NV_ARCH_10) &&
339 (implementation != 0x0100) &&
340 (implementation != 0x0150) &&
341 (implementation != 0x01A0) && (implementation != 0x0200);
343 par->fpScaler = (par->FpScale && par->twoHeads &&
344 (implementation != 0x0110));
346 par->twoStagePLL = (implementation == 0x0310) ||
347 (implementation == 0x0340) || (par->Architecture >= NV_ARCH_40);
349 par->WaitVSyncPossible = (par->Architecture >= NV_ARCH_10) &&
350 (implementation != 0x0100);
352 par->BlendingPossible = ((par->Chipset & 0xffff) != 0x0020);
354 /* look for known laptop chips */
355 switch (par->Chipset & 0xffff) {
410 if (par->Architecture == NV_ARCH_04)
415 NVSelectHeadRegisters(par, 0);
417 NVLockUnlock(par, 0);
419 par->IOBase = (NVReadMiscOut(par) & 0x01) ? 0x3d0 : 0x3b0;
423 nvidia_create_i2c_busses(par);
424 if (!par->twoHeads) {
426 if (nvidia_probe_i2c_connector(info, 1, &edidA))
427 nvidia_probe_of_connector(info, 1, &edidA);
428 if (edidA && !fb_parse_edid(edidA, var)) {
429 printk("nvidiafb: EDID found from BUS1\n");
431 fb_edid_to_monspecs(edidA, monA);
432 FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
434 /* NV4 doesn't support FlatPanels */
435 if ((par->Chipset & 0x0fff) <= 0x0020)
438 VGA_WR08(par->PCIO, 0x03D4, 0x28);
439 if (VGA_RD08(par->PCIO, 0x03D5) & 0x80) {
440 VGA_WR08(par->PCIO, 0x03D4, 0x33);
441 if (!(VGA_RD08(par->PCIO, 0x03D5) & 0x01))
447 printk("nvidiafb: HW is currently programmed for %s\n",
448 FlatPanel ? (Television ? "TV" : "DFP") :
452 if (par->FlatPanel == -1) {
453 par->FlatPanel = FlatPanel;
454 par->Television = Television;
456 printk("nvidiafb: Forcing display type to %s as "
457 "specified\n", par->FlatPanel ? "DFP" : "CRT");
460 u8 outputAfromCRTC, outputBfromCRTC;
462 u8 slaved_on_A, slaved_on_B;
463 int analog_on_A, analog_on_B;
467 if (implementation != 0x0110) {
468 if (NV_RD32(par->PRAMDAC0, 0x0000052C) & 0x100)
472 if (NV_RD32(par->PRAMDAC0, 0x0000252C) & 0x100)
476 analog_on_A = NVIsConnected(par, 0);
477 analog_on_B = NVIsConnected(par, 1);
485 VGA_WR08(par->PCIO, 0x03D4, 0x44);
486 cr44 = VGA_RD08(par->PCIO, 0x03D5);
488 VGA_WR08(par->PCIO, 0x03D5, 3);
489 NVSelectHeadRegisters(par, 1);
490 NVLockUnlock(par, 0);
492 VGA_WR08(par->PCIO, 0x03D4, 0x28);
493 slaved_on_B = VGA_RD08(par->PCIO, 0x03D5) & 0x80;
495 VGA_WR08(par->PCIO, 0x03D4, 0x33);
496 tvB = !(VGA_RD08(par->PCIO, 0x03D5) & 0x01);
499 VGA_WR08(par->PCIO, 0x03D4, 0x44);
500 VGA_WR08(par->PCIO, 0x03D5, 0);
501 NVSelectHeadRegisters(par, 0);
502 NVLockUnlock(par, 0);
504 VGA_WR08(par->PCIO, 0x03D4, 0x28);
505 slaved_on_A = VGA_RD08(par->PCIO, 0x03D5) & 0x80;
507 VGA_WR08(par->PCIO, 0x03D4, 0x33);
508 tvA = !(VGA_RD08(par->PCIO, 0x03D5) & 0x01);
511 oldhead = NV_RD32(par->PCRTC0, 0x00000860);
512 NV_WR32(par->PCRTC0, 0x00000860, oldhead | 0x00000010);
514 if (nvidia_probe_i2c_connector(info, 1, &edidA))
515 nvidia_probe_of_connector(info, 1, &edidA);
516 if (edidA && !fb_parse_edid(edidA, var)) {
517 printk("nvidiafb: EDID found from BUS1\n");
519 fb_edid_to_monspecs(edidA, monA);
522 if (nvidia_probe_i2c_connector(info, 2, &edidB))
523 nvidia_probe_of_connector(info, 2, &edidB);
524 if (edidB && !fb_parse_edid(edidB, var)) {
525 printk("nvidiafb: EDID found from BUS2\n");
527 fb_edid_to_monspecs(edidB, monB);
530 if (slaved_on_A && !tvA) {
533 printk("nvidiafb: CRTC 0 is currently programmed for "
535 } else if (slaved_on_B && !tvB) {
538 printk("nvidiafb: CRTC 1 is currently programmed "
540 } else if (analog_on_A) {
541 CRTCnumber = outputAfromCRTC;
543 printk("nvidiafb: CRTC %i appears to have a "
544 "CRT attached\n", CRTCnumber);
545 } else if (analog_on_B) {
546 CRTCnumber = outputBfromCRTC;
548 printk("nvidiafb: CRTC %i appears to have a "
549 "CRT attached\n", CRTCnumber);
550 } else if (slaved_on_A) {
554 printk("nvidiafb: CRTC 0 is currently programmed "
556 } else if (slaved_on_B) {
560 printk("nvidiafb: CRTC 1 is currently programmed for "
563 FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
565 FlatPanel = (monB->input & FB_DISP_DDI) ? 1 : 0;
568 if (par->FlatPanel == -1) {
569 if (FlatPanel != -1) {
570 par->FlatPanel = FlatPanel;
571 par->Television = Television;
573 printk("nvidiafb: Unable to detect display "
576 printk("...On a laptop, assuming "
580 printk("...Using default of CRT\n");
585 printk("nvidiafb: Forcing display type to %s as "
586 "specified\n", par->FlatPanel ? "DFP" : "CRT");
589 if (par->CRTCnumber == -1) {
590 if (CRTCnumber != -1)
591 par->CRTCnumber = CRTCnumber;
593 printk("nvidiafb: Unable to detect which "
599 printk("...Defaulting to CRTCNumber %i\n",
603 printk("nvidiafb: Forcing CRTCNumber %i as "
604 "specified\n", par->CRTCnumber);
608 if (((monA->input & FB_DISP_DDI) &&
610 ((!(monA->input & FB_DISP_DDI)) &&
613 fb_destroy_modedb(monB->modedb);
617 fb_destroy_modedb(monA->modedb);
623 if (((monB->input & FB_DISP_DDI) &&
625 ((!(monB->input & FB_DISP_DDI)) &&
627 fb_destroy_modedb(monB->modedb);
633 if (implementation == 0x0110)
634 cr44 = par->CRTCnumber * 0x3;
636 NV_WR32(par->PCRTC0, 0x00000860, oldhead);
638 VGA_WR08(par->PCIO, 0x03D4, 0x44);
639 VGA_WR08(par->PCIO, 0x03D5, cr44);
640 NVSelectHeadRegisters(par, par->CRTCnumber);
643 printk("nvidiafb: Using %s on CRTC %i\n",
644 par->FlatPanel ? (par->Television ? "TV" : "DFP") : "CRT",
647 if (par->FlatPanel && !par->Television) {
648 par->fpWidth = NV_RD32(par->PRAMDAC, 0x0820) + 1;
649 par->fpHeight = NV_RD32(par->PRAMDAC, 0x0800) + 1;
650 par->fpSyncs = NV_RD32(par->PRAMDAC, 0x0848) & 0x30000033;
652 printk("nvidiafb: Panel size is %i x %i\n", par->fpWidth, par->fpHeight);
656 info->monspecs = *monA;
658 if (!par->FlatPanel || !par->twoHeads)
662 if (par->FlatPanel && par->twoHeads) {
663 NV_WR32(par->PRAMDAC0, 0x08B0, 0x00010004);
664 if (NV_RD32(par->PRAMDAC0, 0x08b4) & 1)
666 printk("nvidiafb: Panel is %s\n", par->LVDS ? "LVDS" : "TMDS");