/* $XConsortium: nv_driver.c /main/3 1996/10/28 05:13:37 kaleb $ */ /* * Copyright 1996-1997 David J. McKay * * 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 * DAVID J. MCKAY 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. */ /* * GPL licensing note -- nVidia is allowing a liberal interpretation of * the documentation restriction above, to merely say that this nVidia's * copyright and disclaimer should be included with all code derived * from this source. -- Jeff Garzik <jgarzik@pobox.com>, 01/Nov/99 */ /* Hacked together from mga driver and 3.3.4 NVIDIA driver by Jarno Paananen <jpaana@s2.org> */ /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_setup.c,v 1.18 2002/08/0 5 20:47:06 mvojkovi Exp $ */ #include <linux/delay.h> #include <linux/pci.h> #include <linux/pci_ids.h> #include "nv_type.h" #include "rivafb.h" #include "nvreg.h" #ifndef CONFIG_PCI /* sanity check */ #error This driver requires PCI support. #endif #define PFX "rivafb: " static inline unsigned char MISCin(struct riva_par *par) { return (VGA_RD08(par->riva.PVIO, 0x3cc)); } static Bool riva_is_connected(struct riva_par *par, Bool second) { volatile U032 __iomem *PRAMDAC = par->riva.PRAMDAC0; U032 reg52C, reg608; Bool present; if(second) PRAMDAC += 0x800; reg52C = NV_RD32(PRAMDAC, 0x052C); reg608 = NV_RD32(PRAMDAC, 0x0608); NV_WR32(PRAMDAC, 0x0608, reg608 & ~0x00010000); NV_WR32(PRAMDAC, 0x052C, reg52C & 0x0000FEEE); mdelay(1); NV_WR32(PRAMDAC, 0x052C, NV_RD32(PRAMDAC, 0x052C) | 1); NV_WR32(par->riva.PRAMDAC0, 0x0610, 0x94050140); NV_WR32(par->riva.PRAMDAC0, 0x0608, 0x00001000); mdelay(1); present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? TRUE : FALSE; NV_WR32(par->riva.PRAMDAC0, 0x0608, NV_RD32(par->riva.PRAMDAC0, 0x0608) & 0x0000EFFF); NV_WR32(PRAMDAC, 0x052C, reg52C); NV_WR32(PRAMDAC, 0x0608, reg608); return present; } static void riva_override_CRTC(struct riva_par *par) { printk(KERN_INFO PFX "Detected CRTC controller %i being used\n", par->SecondCRTC ? 1 : 0); if(par->forceCRTC != -1) { printk(KERN_INFO PFX "Forcing usage of CRTC %i\n", par->forceCRTC); par->SecondCRTC = par->forceCRTC; } } static void riva_is_second(struct riva_par *par) { if (par->FlatPanel == 1) { switch(par->Chipset & 0xffff) { case 0x0174: case 0x0175: case 0x0176: case 0x0177: case 0x0179: case 0x017C: case 0x017D: case 0x0186: case 0x0187: /* this might not be a good default for the chips below */ 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: par->SecondCRTC = TRUE; break; default: par->SecondCRTC = FALSE; break; } } else { if(riva_is_connected(par, 0)) { if (NV_RD32(par->riva.PRAMDAC0, 0x0000052C) & 0x100) par->SecondCRTC = TRUE; else par->SecondCRTC = FALSE; } else if (riva_is_connected(par, 1)) { if(NV_RD32(par->riva.PRAMDAC0, 0x0000252C) & 0x100) par->SecondCRTC = TRUE; else par->SecondCRTC = FALSE; } else /* default */ par->SecondCRTC = FALSE; } riva_override_CRTC(par); } unsigned long riva_get_memlen(struct riva_par *par) { RIVA_HW_INST *chip = &par->riva; unsigned long memlen = 0; unsigned int chipset = par->Chipset; struct pci_dev* dev; int amt; switch (chip->Architecture) { case NV_ARCH_03: if (NV_RD32(chip->PFB, 0x00000000) & 0x00000020) { if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20) && ((NV_RD32(chip->PMC, 0x00000000)&0x0F)>=0x02)) { /* * SDRAM 128 ZX. */ switch (NV_RD32(chip->PFB,0x00000000) & 0x03) { case 2: memlen = 1024 * 4; break; case 1: memlen = 1024 * 2; break; default: memlen = 1024 * 8; break; } } else { memlen = 1024 * 8; } } else { /* * SGRAM 128. */ switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003) { case 0: memlen = 1024 * 8; break; case 2: memlen = 1024 * 4; break; default: memlen = 1024 * 2; break; } } break; case NV_ARCH_04: if (NV_RD32(chip->PFB, 0x00000000) & 0x00000100) { memlen = ((NV_RD32(chip->PFB, 0x00000000)>>12)&0x0F) * 1024 * 2 + 1024 * 2; } else { switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003) { case 0: memlen = 1024 * 32; break; case 1: memlen = 1024 * 4; break; case 2: memlen = 1024 * 8; break; case 3: default: memlen = 1024 * 16; break; } } break; case NV_ARCH_10: case NV_ARCH_20: case NV_ARCH_30: if(chipset == NV_CHIP_IGEFORCE2) { dev = pci_find_slot(0, 1); pci_read_config_dword(dev, 0x7C, &amt); memlen = (((amt >> 6) & 31) + 1) * 1024; } else if (chipset == NV_CHIP_0x01F0) { dev = pci_find_slot(0, 1); pci_read_config_dword(dev, 0x84, &amt); memlen = (((amt >> 4) & 127) + 1) * 1024; } else { switch ((NV_RD32(chip->PFB, 0x0000020C) >> 20) & 0x000000FF){ case 0x02: memlen = 1024 * 2; break; case 0x04: memlen = 1024 * 4; break; case 0x08: memlen = 1024 * 8; break; case 0x10: memlen = 1024 * 16; break; case 0x20: memlen = 1024 * 32; break; case 0x40: memlen = 1024 * 64; break; case 0x80: memlen = 1024 * 128; break; default: memlen = 1024 * 16; break; } } break; } return memlen; } unsigned long riva_get_maxdclk(struct riva_par *par) { RIVA_HW_INST *chip = &par->riva; unsigned long dclk = 0; switch (chip->Architecture) { case NV_ARCH_03: if (NV_RD32(chip->PFB, 0x00000000) & 0x00000020) { if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20) && ((NV_RD32(chip->PMC,0x00000000)&0x0F) >= 0x02)) { /* * SDRAM 128 ZX. */ dclk = 800000; } else { dclk = 1000000; } } else { /* * SGRAM 128. */ dclk = 1000000; } break; case NV_ARCH_04: case NV_ARCH_10: case NV_ARCH_20: case NV_ARCH_30: switch ((NV_RD32(chip->PFB, 0x00000000) >> 3) & 0x00000003) { case 3: dclk = 800000; break; default: dclk = 1000000; break; } break; } return dclk; } void riva_common_setup(struct riva_par *par) { par->riva.EnableIRQ = 0; par->riva.PRAMDAC0 = (volatile U032 __iomem *)(par->ctrl_base + 0x00680000); par->riva.PFB = (volatile U032 __iomem *)(par->ctrl_base + 0x00100000); par->riva.PFIFO = (volatile U032 __iomem *)(par->ctrl_base + 0x00002000); par->riva.PGRAPH = (volatile U032 __iomem *)(par->ctrl_base + 0x00400000); par->riva.PEXTDEV = (volatile U032 __iomem *)(par->ctrl_base + 0x00101000); par->riva.PTIMER = (volatile U032 __iomem *)(par->ctrl_base + 0x00009000); par->riva.PMC = (volatile U032 __iomem *)(par->ctrl_base + 0x00000000); par->riva.FIFO = (volatile U032 __iomem *)(par->ctrl_base + 0x00800000); par->riva.PCIO0 = par->ctrl_base + 0x00601000; par->riva.PDIO0 = par->ctrl_base + 0x00681000; par->riva.PVIO = par->ctrl_base + 0x000C0000; par->riva.IO = (MISCin(par) & 0x01) ? 0x3D0 : 0x3B0; if (par->FlatPanel == -1) { switch (par->Chipset & 0xffff) { case 0x0112: /* known laptop chips */ case 0x0174: case 0x0175: case 0x0176: case 0x0177: case 0x0179: case 0x017C: case 0x017D: case 0x0186: case 0x0187: 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: printk(KERN_INFO PFX "On a laptop. Assuming Digital Flat Panel\n"); par->FlatPanel = 1; break; default: break; } } switch (par->Chipset & 0x0ff0) { case 0x0110: if (par->Chipset == NV_CHIP_GEFORCE2_GO) par->SecondCRTC = TRUE; #if defined(__powerpc__) if (par->FlatPanel == 1) par->SecondCRTC = TRUE; #endif riva_override_CRTC(par); break; case 0x0170: case 0x0180: case 0x01F0: case 0x0250: case 0x0280: case 0x0300: case 0x0310: case 0x0320: case 0x0330: case 0x0340: riva_is_second(par); break; default: break; } if (par->SecondCRTC) { par->riva.PCIO = par->riva.PCIO0 + 0x2000; par->riva.PCRTC = par->riva.PCRTC0 + 0x800; par->riva.PRAMDAC = par->riva.PRAMDAC0 + 0x800; par->riva.PDIO = par->riva.PDIO0 + 0x2000; } else { par->riva.PCIO = par->riva.PCIO0; par->riva.PCRTC = par->riva.PCRTC0; par->riva.PRAMDAC = par->riva.PRAMDAC0; par->riva.PDIO = par->riva.PDIO0; } if (par->FlatPanel == -1) { /* Fix me, need x86 DDC code */ par->FlatPanel = 0; } par->riva.flatPanel = (par->FlatPanel > 0) ? TRUE : FALSE; RivaGetConfig(&par->riva, par->Chipset); }