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-rw-r--r--int10/i10_pci.c866
1 files changed, 0 insertions, 866 deletions
diff --git a/int10/i10_pci.c b/int10/i10_pci.c
deleted file mode 100644
index 387cebb..0000000
--- a/int10/i10_pci.c
+++ /dev/null
@@ -1,866 +0,0 @@
-/*
- * Copyright 1999 Egbert Eich
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of the authors not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. The authors makes no representations
- * about the suitability of this software for any purpose. It is provided
- * "as is" without express or implied warranty.
- *
- * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING 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 SOFTWARE.
- */
-#include <fcntl.h>
-#include <unistd.h>
-#include <malloc.h>
-#include <stdio.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#if defined (__alpha__) || defined (__ia64__)
-#include <sys/io.h>
-#endif
-#include "AsmMacros.h"
-
-#include "pci.h"
-
-#define RESORT 1
-#define FIX_ROM 0
-
-/*
- * I'm rather simple mindend - therefore I do a poor man's
- * pci scan without all the fancy stuff that is done in
- * scanpci. However that's all we need.
- */
-
-PciStructPtr PciStruct = NULL;
-PciBusPtr PciBuses = NULL;
-PciStructPtr CurrentPci = NULL;
-PciStructPtr PciList = NULL;
-int pciMaxBus = 0;
-
-static CARD32 PciCfg1Addr;
-
-static void readConfigSpaceCfg1(CARD32 bus, CARD32 dev, CARD32 func,
- CARD32 *reg);
-static int checkSlotCfg1(CARD32 bus, CARD32 dev, CARD32 func);
-static int checkSlotCfg2(CARD32 bus, int dev);
-static void readConfigSpaceCfg2(CARD32 bus, int dev, CARD32 *reg);
-static CARD8 interpretConfigSpace(CARD32 *reg, int busidx,
- CARD8 dev, CARD8 func);
-static CARD32 findBIOSMap(PciStructPtr pciP, CARD32 *biosSize);
-static void restoreMem(PciStructPtr pciP);
-
-
-#ifdef __alpha__
-#define PCI_BUS_FROM_TAG(tag) (((tag) & 0x00ff0000) >> 16)
-#define PCI_DFN_FROM_TAG(tag) (((tag) & 0x0000ff00) >> 8)
-
-#include <asm/unistd.h>
-
-CARD32
-axpPciCfgRead(CARD32 tag)
-{
- int bus, dfn;
- CARD32 val = 0xffffffff;
-
- bus = PCI_BUS_FROM_TAG(tag);
- dfn = PCI_DFN_FROM_TAG(tag);
-
- syscall(__NR_pciconfig_read, bus, dfn, tag & 0xff, 4, &val);
- return(val);
-}
-
-void
-axpPciCfgWrite(CARD32 tag, CARD32 val)
-{
- int bus, dfn;
-
- bus = PCI_BUS_FROM_TAG(tag);
- dfn = PCI_DFN_FROM_TAG(tag);
-
- syscall(__NR_pciconfig_write, bus, dfn, tag & 0xff, 4, &val);
-}
-
-static CARD32 (*readPci)(CARD32 reg) = axpPciCfgRead;
-static void (*writePci)(CARD32 reg, CARD32 val) = axpPciCfgWrite;
-#else
-static CARD32 readPciCfg1(CARD32 reg);
-static void writePciCfg1(CARD32 reg, CARD32 val);
-#ifndef __ia64__
-static CARD32 readPciCfg2(CARD32 reg);
-static void writePciCfg2(CARD32 reg, CARD32 val);
-#endif
-
-static CARD32 (*readPci)(CARD32 reg) = readPciCfg1;
-static void (*writePci)(CARD32 reg, CARD32 val) = writePciCfg1;
-#endif
-
-#if defined(__alpha__) || defined(__sparc__)
-#define PCI_EN 0x00000000
-#else
-#define PCI_EN 0x80000000
-#endif
-
-
-static int numbus;
-static int hostbridges = 1;
-static unsigned long pciMinMemReg = ~0;
-
-
-
-void
-scan_pci(int pci_cfg_method)
-{
- unsigned short configtype;
-
- CARD32 reg[64];
- int busidx;
- CARD8 cardnum;
- CARD8 func;
- int idx;
-
- PciStructPtr pci1;
- PciBusPtr pci_b1,pci_b2;
-
- if(pci_cfg_method) {
- configtype = pci_cfg_method;
- }
- else {
-#if defined(__alpha__) || defined(__powerpc__) || defined(__sparc__) || defined(__ia64__)
- configtype = 1;
-#else
- CARD8 tmp1, tmp2;
- CARD32 tmp32_1, tmp32_2;
- outb(PCI_MODE2_ENABLE_REG, 0x00);
- outb(PCI_MODE2_FORWARD_REG, 0x00);
- tmp1 = inb(PCI_MODE2_ENABLE_REG);
- tmp2 = inb(PCI_MODE2_FORWARD_REG);
- if ((tmp1 == 0x00) && (tmp2 == 0x00)) {
- configtype = 2;
- readPci = readPciCfg2;
- writePci = writePciCfg2;
- } else {
- tmp32_1 = inl(PCI_MODE1_ADDRESS_REG);
- outl(PCI_MODE1_ADDRESS_REG, PCI_EN);
- tmp32_2 = inl(PCI_MODE1_ADDRESS_REG);
- outl(PCI_MODE1_ADDRESS_REG, tmp32_1);
- if (tmp32_2 == PCI_EN) {
- configtype = 1;
- } else {
- return;
- }
- }
-#endif
- }
-
- if (configtype == 1) {
- busidx = 0;
- numbus = 1;
- idx = 0;
- do {
- for (cardnum = 0; cardnum < MAX_DEV_PER_VENDOR_CFG1; cardnum++) {
- func = 0;
- do {
- /* loop over the different functions, if present */
- if (!checkSlotCfg1(busidx,cardnum,func)) {
- if (!func)
- break;
- else {
- func++;
- continue;
- }
- }
- readConfigSpaceCfg1(busidx,cardnum,func,reg);
-
- func = interpretConfigSpace(reg,busidx,
- cardnum,func);
-
- if (++idx >= MAX_PCI_DEVICES)
- break;
- } while (func < 8);
- if (idx >= MAX_PCI_DEVICES)
- break;
- }
- if (idx >= MAX_PCI_DEVICES)
- break;
- } while (++busidx < PCI_MAXBUS);
-#if defined(__alpha__) || defined(__powerpc__) || defined(__sparc__) || defined(__ia64__)
- /* don't use outl() ;-) */
-#else
- outl(PCI_MODE1_ADDRESS_REG, 0);
-#endif
- } else {
- int slot;
-
- busidx = 0;
- numbus = 1;
- idx = 0;
- do {
- for (slot=0xc0; slot<0xd0; slot++) {
- if (!checkSlotCfg2(busidx,slot))
- break;
- readConfigSpaceCfg2(busidx,slot,reg);
-
- interpretConfigSpace(reg,busidx,
- slot,0);
- if (++idx >= MAX_PCI_DEVICES)
- break;
- }
- if (idx >= MAX_PCI_DEVICES)
- break;
- } while (++busidx < PCI_MAXBUS);
- }
-
-
- pciMaxBus = numbus - 1;
-
- /* link buses */
- pci_b1 = PciBuses;
- while (pci_b1) {
- pci_b2 = PciBuses;
- pci_b1->pBus = NULL;
- while (pci_b2) {
- if (pci_b1->primary == pci_b2->secondary)
- pci_b1->pBus = pci_b2;
- pci_b2 = pci_b2->next;
- }
- pci_b1 = pci_b1->next;
- }
- pci1 = PciStruct;
- while (pci1) {
- pci_b2 = PciBuses;
- pci1->pBus = NULL;
- while (pci_b2) {
- if (pci1->bus == pci_b2->secondary)
- pci1->pBus = pci_b2;
- pci_b2 = pci_b2->next;
- }
- pci1 = pci1->next;
- }
- if (RESORT) {
- PciStructPtr tmp = PciStruct, tmp1;
- PciStruct = NULL;
- while (tmp) {
- tmp1 = tmp->next;
- tmp->next = PciStruct;
- PciStruct = tmp;
- tmp = tmp1;
- }
- }
- PciList = CurrentPci = PciStruct;
-}
-
-#ifndef __alpha__
-static CARD32
-readPciCfg1(CARD32 reg)
-{
- CARD32 val;
-
- outl(PCI_MODE1_ADDRESS_REG, reg);
- val = inl(PCI_MODE1_DATA_REG);
- outl(PCI_MODE1_ADDRESS_REG, 0);
- return val;
-}
-
-static void
-writePciCfg1(CARD32 reg, CARD32 val)
-{
- outl(PCI_MODE1_ADDRESS_REG, reg);
- outl(PCI_MODE1_DATA_REG,val);
- outl(PCI_MODE1_ADDRESS_REG, 0);
-}
-
-#ifndef __ia64__
-static CARD32
-readPciCfg2(CARD32 reg)
-{
- CARD32 val;
- CARD8 bus = (reg >> 16) & 0xff;
- CARD8 dev = (reg >> 11) & 0x1f;
- CARD8 num = reg & 0xff;
-
- outb(PCI_MODE2_ENABLE_REG, 0xF1);
- outb(PCI_MODE2_FORWARD_REG, bus);
- val = inl((dev << 8) + num);
- outb(PCI_MODE2_ENABLE_REG, 0x00);
- return val;
-}
-
-static void
-writePciCfg2(CARD32 reg, CARD32 val)
-{
- CARD8 bus = (reg >> 16) & 0xff;
- CARD8 dev = (reg >> 11) & 0x1f;
- CARD8 num = reg & 0xff;
-
- outb(PCI_MODE2_ENABLE_REG, 0xF1);
- outb(PCI_MODE2_FORWARD_REG, bus);
- outl((dev << 8) + num,val);
- outb(PCI_MODE2_ENABLE_REG, 0x00);
-}
-#endif
-#endif
-
-void
-pciVideoDisable(void)
-{
- /* disable VGA routing on bridges */
- PciBusPtr pbp = PciBuses;
- PciStructPtr pcp = PciStruct;
-
- while (pbp) {
- writePci(pbp->Slot.l | 0x3c, pbp->bctl & ~(CARD32)(8<<16));
- pbp = pbp->next;
- }
- /* disable display devices */
- while (pcp) {
- writePci(pcp->Slot.l | 0x04, pcp->cmd_st & ~(CARD32)3);
- writePci(pcp->Slot.l | 0x30, pcp->RomBase & ~(CARD32)1);
- pcp = pcp->next;
- }
-}
-
-void
-pciVideoRestore(void)
-{
- /* disable VGA routing on bridges */
- PciBusPtr pbp = PciBuses;
- PciStructPtr pcp = PciStruct;
-
- while (pbp) {
- writePci(pbp->Slot.l | 0x3c, pbp->bctl);
- pbp = pbp->next;
- }
- /* disable display devices */
- while (pcp) {
- writePci(pcp->Slot.l | 0x04, pcp->cmd_st);
- writePci(pcp->Slot.l | 0x30, pcp->RomBase);
- pcp = pcp->next;
- }
-}
-
-void
-EnableCurrent()
-{
- PciBusPtr pbp;
- PciStructPtr pcp = CurrentPci;
-
- pciVideoDisable();
-
- pbp = pcp->pBus;
- while (pbp) { /* enable bridges */
- writePci(pbp->Slot.l | 0x3c, pbp->bctl | (CARD32)(8<<16));
- pbp = pbp->pBus;
- }
- writePci(pcp->Slot.l | 0x04, pcp->cmd_st | (CARD32)3);
- writePci(pcp->Slot.l | 0x30, pcp->RomBase | (CARD32)1);
-}
-
-CARD8
-PciRead8(int offset, CARD32 Slot)
-{
- int shift = offset & 0x3;
- offset = offset & 0xFC;
- return ((readPci(Slot | offset) >> (shift << 3)) & 0xff);
-}
-
-CARD16
-PciRead16(int offset, CARD32 Slot)
-{
- int shift = offset & 0x2;
- offset = offset & 0xFC;
- return ((readPci(Slot | offset) >> (shift << 3)) & 0xffff);
-}
-
-CARD32
-PciRead32(int offset, CARD32 Slot)
-{
- offset = offset & 0xFC;
- return (readPci(Slot | offset));
-}
-
-void
-PciWrite8(int offset, CARD8 byte, CARD32 Slot)
-{
- CARD32 val;
- int shift = offset & 0x3;
- offset = offset & 0xFC;
- val = readPci(Slot | offset);
- val &= ~(CARD32)(0xff << (shift << 3));
- val |= byte << (shift << 3);
- writePci(Slot | offset, val);
-}
-
-void
-PciWrite16(int offset, CARD16 word, CARD32 Slot)
-{
- CARD32 val;
- int shift = offset & 0x2;
- offset = offset & 0xFC;
- val = readPci(Slot | offset);
- val &= ~(CARD32)(0xffff << (shift << 3));
- val |= word << (shift << 3);
- writePci(Slot | offset, val);
-}
-
-void
-PciWrite32(int offset, CARD32 lg, CARD32 Slot)
-{
- offset = offset & 0xFC;
- writePci(Slot | offset, lg);
-}
-
-int
-mapPciRom(PciStructPtr pciP)
-{
- unsigned long RomBase = 0;
- int mem_fd;
- unsigned char *mem, *ptr;
- unsigned char *scratch = NULL;
- int length = 0;
- CARD32 biosSize = 0x1000000;
- CARD32 enablePci = 0; /* to keep gcc happy */
-
- if (!pciP)
- pciP = CurrentPci;
-
- if (FIX_ROM) {
- RomBase = findBIOSMap(pciP, &biosSize);
- if (!RomBase) {
- RomBase = pciP->RomBase & ~(CARD32)0xFF;
- }
- } else {
- RomBase = pciP->RomBase & ~(CARD32)0xFF;
- if (~RomBase + 1 < biosSize || !RomBase)
- RomBase = findBIOSMap(pciP, &biosSize);
- }
-
- if ((mem_fd = open(MEM_FILE,O_RDONLY))<0) {
- perror("opening memory");
- restoreMem(pciP);
- return (0);
- }
-
- PciWrite32(0x30,RomBase | 1,pciP->Slot.l);
-
-#ifdef __alpha__
- mem = ptr = (unsigned char *)mmap(0, biosSize, PROT_READ,
- MAP_SHARED, mem_fd, RomBase | _bus_base());
-#else
- mem = ptr = (unsigned char *)mmap(0, biosSize, PROT_READ,
- MAP_SHARED, mem_fd, RomBase);
-#endif
- if (pciP != CurrentPci) {
- enablePci = PciRead32(0x4,pciP->Slot.l);
- PciWrite32(0x4,enablePci | 0x2,pciP->Slot.l);
- }
-
- while ( *ptr == 0x55 && *(ptr+1) == 0xAA) {
- unsigned short data_off = *(ptr+0x18) | (*(ptr+0x19)<< 8);
- unsigned char *data = ptr + data_off;
- unsigned char type;
- int i;
-
- if (*data!='P' || *(data+1)!='C' || *(data+2)!='I' || *(data+3)!='R') {
- break;
- }
- type = *(data + 0x14);
-
- if (type != 0) { /* not PC-AT image: find next one */
- unsigned int image_length;
- unsigned char indicator = *(data + 0x15);
- if (indicator & 0x80) /* last image */
- break;
- image_length = (*(data + 0x10)
- | (*(data + 0x11) << 8)) << 9;
- ptr = ptr + image_length;
- continue;
- }
- /* OK, we have a PC Image */
- length = (*(ptr + 2) << 9);
- scratch = (unsigned char *)malloc(length);
- /* don't use memcpy() here: Reading from bus! */
- for (i=0;i<length;i++)
- *(scratch + i)=*(ptr + i);
- break;
- }
-
- if (pciP != CurrentPci)
- PciWrite32(0x4,enablePci,pciP->Slot.l);
-
- /* unmap/close/disable PCI bios mem */
- munmap(mem, biosSize);
- close(mem_fd);
- /* disable and restore mapping */
- writePci(pciP->Slot.l | 0x30, pciP->RomBase & ~(CARD32)1);
-
- if (scratch && length) {
- memcpy((unsigned char *)V_BIOS, scratch, length);
- free(scratch);
- }
-
- restoreMem(pciP);
- return length;
-}
-
-CARD32
-findPci(CARD16 slotBX)
-{
- CARD32 slot = slotBX << 8;
-
- if (slot == (CurrentPci->Slot.l & ~PCI_EN))
- return (CurrentPci->Slot.l | PCI_EN);
- else {
-#if !SHOW_ALL_DEV
- PciBusPtr pBus = CurrentPci->pBus;
- while (pBus) {
- if (slot == (pBus->Slot.l & ~PCI_EN))
- return pBus->Slot.l | PCI_EN;
- pBus = pBus->next;
- }
-#else
- PciStructPtr pPci = PciStruct;
- while (pPci) {
- if (slot == (pPci->Slot.l & ~PCI_EN))
- return pPci->Slot.l | PCI_EN;
- pPci = pPci->next;
- }
-#endif
- }
- return 0;
-}
-
-CARD16
-pciSlotBX(PciStructPtr pPci)
-{
- return (CARD16)((pPci->Slot.l >> 8) & 0xFFFF);
-}
-
-PciStructPtr
-findPciDevice(CARD16 vendorID, CARD16 deviceID, char n)
-{
- PciStructPtr pPci = CurrentPci;
- n++;
-
- while (pPci) {
- if ((pPci->VendorID == vendorID) && (pPci->DeviceID == deviceID)) {
- if (!(--n)) break;
- }
- pPci = pPci->next;
- }
- return pPci;
-}
-
-PciStructPtr
-findPciClass(CARD8 intf, CARD8 subClass, CARD16 class, char n)
-{
- PciStructPtr pPci = CurrentPci;
- n++;
-
- while (pPci) {
- if ((pPci->Interface == intf) && (pPci->SubClass == subClass)
- && (pPci->BaseClass == class)) {
- if (!(--n)) break;
- }
- pPci = pPci->next;
- }
- return pPci;
-}
-
-static void
-readConfigSpaceCfg1(CARD32 bus, CARD32 dev, CARD32 func, CARD32 *reg)
-{
- CARD32 config_cmd = PCI_EN | (bus<<16) |
- (dev<<11) | (func<<8);
- int i;
-
- for (i = 0; i<64;i+=4) {
-#ifdef __alpha__
- reg[i] = axpPciCfgRead(config_cmd | i);
-#else
- outl(PCI_MODE1_ADDRESS_REG, config_cmd | i);
- reg[i] = inl(PCI_MODE1_DATA_REG);
-#endif
-
- }
-}
-
-static int
-checkSlotCfg1(CARD32 bus, CARD32 dev, CARD32 func)
-{
- CARD32 config_cmd = PCI_EN | (bus<<16) |
- (dev<<11) | (func<<8);
- CARD32 reg;
-#ifdef __alpha__
- reg = axpPciCfgRead(config_cmd);
-#else
- outl(PCI_MODE1_ADDRESS_REG, config_cmd);
- reg = inl(PCI_MODE1_DATA_REG);
-#endif
- if (reg != 0xFFFFFFFF)
- return 1;
- else
- return 0;
-}
-
-static int
-checkSlotCfg2(CARD32 bus, int dev)
-{
- CARD32 val;
-
- outb(PCI_MODE2_ENABLE_REG, 0xF1);
- outb(PCI_MODE2_FORWARD_REG, bus);
- val = inl(dev << 8);
- outb(PCI_MODE2_FORWARD_REG, 0x00);
- outb(PCI_MODE2_ENABLE_REG, 0x00);
- if (val == 0xFFFFFFFF)
- return 0;
- if (val == 0xF0F0F0F0)
- return 0;
- return 1;
-}
-
-static void
-readConfigSpaceCfg2(CARD32 bus, int dev, CARD32 *reg)
-{
- int i;
-
- outb(PCI_MODE2_ENABLE_REG, 0xF1);
- outb(PCI_MODE2_FORWARD_REG, bus);
- for (i = 0; i<64;i+=4) {
- reg[i] = inl((dev << 8) + i);
- }
- outb(PCI_MODE2_ENABLE_REG, 0x00);
-}
-
-static CARD8
-interpretConfigSpace(CARD32 *reg, int busidx, CARD8 dev, CARD8 func)
-{
- CARD32 config_cmd;
- CARD16 vendor, device;
- CARD8 baseclass, subclass;
- CARD8 primary, secondary;
- CARD8 header, interface;
- int i;
-
- config_cmd = PCI_EN | busidx<<16 |
- (dev<<11) | (func<<8);
-
- for (i = 0x10; i < 0x28; i+=4) {
- if (IS_MEM32(reg[i]))
- if ((reg[i] & 0xFFFFFFF0) < pciMinMemReg)
- pciMinMemReg = (reg[i] & 0xFFFFFFF0);
-#ifdef __alpha__
- if (IS_MEM64(reg[i])) {
- unsigned long addr = reg[i] |
- (unsigned long)(reg[i+4]) << 32;
- if ((addr & ~0xfL) < pciMinMemReg)
- pciMinMemReg = (addr & ~0xfL);
- i+=4;
- }
-#endif
- }
- vendor = reg[0] & 0xFFFF;
- device = reg[0] >> 16;
- baseclass = reg[8] >> 24;
- subclass = (reg[8] >> 16) & 0xFF;
- interface = (reg[8] >> 8) & 0xFF;
-
- header = (reg[0x0c] >> 16) & 0xff;
- if (BRIDGE_CLASS(baseclass)) {
- if (BRIDGE_PCI_CLASS(subclass)) {
- PciBusPtr pbp = malloc(sizeof(PciBusRec));
- primary = reg[0x18] & 0xFF;
- secondary = (reg[0x18] >> 8) & 0xFF;
- pbp->bctl = reg[0x3c];
- pbp->primary = primary;
- pbp->secondary = secondary;
- pbp->Slot.l = config_cmd;
- pbp->next = PciBuses;
- PciBuses = pbp;
- numbus++;
- } else if (BRIDGE_HOST_CLASS(subclass)
- && (hostbridges++ > 1)) {
- numbus++;
- }
- } else if (VIDEO_CLASS(baseclass,subclass)) {
- PciStructPtr pcp = malloc(sizeof(PciStructRec));
- pcp->RomBase = reg[0x30];
- pcp->cmd_st = reg[4];
- pcp->active = (reg[4] & 0x03) == 3 ? 1 : 0;
- pcp->VendorID = vendor;
- pcp->DeviceID = device;
- pcp->Interface = interface;
- pcp->BaseClass = baseclass;
- pcp->SubClass = subclass;
- pcp->Slot.l = config_cmd;
- pcp->bus = busidx;
- pcp->dev = dev;
- pcp->func = func;
- pcp->next = PciStruct;
- PciStruct = pcp;
- }
- if ((func == 0)
- && ((header & PCI_MULTIFUNC_DEV) == 0))
- func = 8;
- else
- func++;
- return func;
-}
-
-static CARD32 remapMEM_val;
-static int remapMEM_num;
-
-static int /* map it on some other video device */
-remapMem(PciStructPtr pciP, int num, CARD32 size)
-{
- PciStructPtr pciPtr = PciStruct;
- int i;
- CARD32 org;
- CARD32 val;
- CARD32 size_n;
-
- org = PciRead32(num + 0x10,pciP->Slot.l);
-
- while (pciPtr) {
- for (i = 0; i < 20; i=i+4) {
-
- val = PciRead32(i + 0x10,pciPtr->Slot.l);
- /* don't map it on itself */
- if ((org & 0xfffffff0) == (val & 0xfffffff0))
- continue;
- if (val && !(val & 1))
- PciWrite32(i + 0x10,0xffffffff,pciPtr->Slot.l);
- else
- continue;
- size_n = PciRead32(i + 0x10,pciPtr->Slot.l);
- PciWrite32(i + 0x10,val,pciPtr->Slot.l);
- size_n = ~(CARD32)(size_n & 0xfffffff0) + 1;
-
- if (size_n >= size) {
- PciWrite32(num + 0x10,val,pciP->Slot.l);
- return 1;
- }
- }
- pciPtr = pciPtr->next;
- }
- /* last resort: try to go below lowest PCI mem address */
- val = ((pciMinMemReg & ~(CARD32)(size - 1)) - size);
- if (val > 0x7fffffff) {
- PciWrite32(num + 0x10,val, pciP->Slot.l);
- return 1;
- }
-
- return 0;
-}
-
-static void
-restoreMem(PciStructPtr pciP)
-{
- if (remapMEM_val == 0) return;
- PciWrite32(remapMEM_num + 0x10,remapMEM_val,pciP->Slot.l);
- return;
-}
-
-static CARD32
-findBIOSMap(PciStructPtr pciP, CARD32 *biosSize)
-{
- PciStructPtr pciPtr = PciStruct;
- int i;
- CARD32 val;
- CARD32 size = 4*1024; /* should be fixed: size seems _really_ to be undefined below */
-
- PciWrite32(0x30,0xffffffff,pciP->Slot.l);
- *biosSize = PciRead32(0x30,pciP->Slot.l);
- PciWrite32(0x30,pciP->RomBase,pciP->Slot.l);
- *biosSize = ~(*biosSize & 0xFFFFFF00) + 1;
- if (*biosSize > (1024 * 1024 * 16)) {
- *biosSize = 1024 * 1024 * 16;
- }
- while (pciPtr) {
- if (pciPtr->bus != pciP->bus) {
- pciPtr = pciPtr->next;
- continue;
- }
- for (i = 0; i < 20; i=i+4) {
-
- val = PciRead32(i + 0x10,pciPtr->Slot.l);
- if (!(val & 1))
-
- PciWrite32(i + 0x10,0xffffffff,pciPtr->Slot.l);
- else
- continue;
- size = PciRead32(i + 0x10,pciPtr->Slot.l);
- PciWrite32(i + 0x10,val,pciPtr->Slot.l);
- size = ~(CARD32)(size & 0xFFFFFFF0) + 1;
- if (size >= *biosSize) {
- if (pciP == pciPtr) { /* if same device remap ram*/
- if (!(remapMem(pciP,i,size)))
- continue;
- remapMEM_val = val;
- remapMEM_num = i;
- } else {
- remapMEM_val = 0;
- }
- return val & 0xFFFFFF00;
- }
- }
- pciPtr = pciPtr->next;
- }
- remapMEM_val = 0;
- /* very last resort */
- if (pciP->bus == 0 && (pciMinMemReg > *biosSize))
- return (pciMinMemReg - size) & ~(size - 1);
-
- return 0;
-}
-
-int
-cfg1out(CARD16 addr, CARD32 val)
-{
- if (addr == 0xCF8) {
- PciCfg1Addr = val;
- return 1;
- } else if (addr == 0xCFC) {
- writePci(PciCfg1Addr, val);
- return 1;
- }
- return 0;
-}
-
-int
-cfg1in(CARD16 addr, CARD32 *val)
-{
- if (addr == 0xCF8) {
- *val = PciCfg1Addr;
- return 1;
- } else if (addr == 0xCFC) {
- *val = readPci(PciCfg1Addr);
- return 1;
- }
- return 0;
-}
-
-PciStructPtr
-findPciByIDs(int bus, int dev, int func)
-{
- PciStructPtr pciP = PciList;
-
- while (pciP) {
- if (pciP->bus == (unsigned) bus && pciP->dev == (unsigned) dev && pciP->func == (unsigned) func)
- return pciP;
- pciP = pciP->next;
- }
- return NULL;
-}
generated by cgit v1.2.1 (git 2.21.0) at 2024-05-28 14:38:17 +0000