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authormarha <marha@users.sourceforge.net>2011-10-19 12:11:26 +0200
committermarha <marha@users.sourceforge.net>2011-10-19 12:11:26 +0200
commit1e90ede4237374dfbb2c8c506a906233bcfd3c5d (patch)
tree13b59b0ab2715fd0bb9eea788c73b08f3b07c01e /xorg-server/hw/xfree86/common/xf86pciBus.c
parentbaf98f9bb36f956245d83ecd04f90625d6d68d2b (diff)
parent9f986778bd4393c5a9108426969d45aa7f10f334 (diff)
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Merge remote-tracking branch 'origin/released'
Conflicts: xorg-server/include/os.h
Diffstat (limited to 'xorg-server/hw/xfree86/common/xf86pciBus.c')
-rw-r--r--xorg-server/hw/xfree86/common/xf86pciBus.c2723
1 files changed, 1364 insertions, 1359 deletions
diff --git a/xorg-server/hw/xfree86/common/xf86pciBus.c b/xorg-server/hw/xfree86/common/xf86pciBus.c
index 2f04ac12f..eb5323cf0 100644
--- a/xorg-server/hw/xfree86/common/xf86pciBus.c
+++ b/xorg-server/hw/xfree86/common/xf86pciBus.c
@@ -1,1359 +1,1364 @@
-/*
- * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
- *
- * 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
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
- *
- * Except as contained in this notice, the name of the copyright holder(s)
- * and author(s) shall not be used in advertising or otherwise to promote
- * the sale, use or other dealings in this Software without prior written
- * authorization from the copyright holder(s) and author(s).
- */
-
-/*
- * This file contains the interfaces to the bus-specific code
- */
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <ctype.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <X11/X.h>
-#include <pciaccess.h>
-#include "os.h"
-#include "Pci.h"
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "dirent.h" /* DIR, FILE type definitions */
-
-/* Bus-specific headers */
-#include "xf86Bus.h"
-
-#define XF86_OS_PRIVS
-#include "xf86_OSproc.h"
-
-
-/* Bus-specific globals */
-Bool pciSlotClaimed = FALSE;
-
-#define PCIINFOCLASSES(c) \
- ( (((c) & 0x00ff0000) == (PCI_CLASS_PREHISTORIC << 16)) \
- || (((c) & 0x00ff0000) == (PCI_CLASS_DISPLAY << 16)) \
- || ((((c) & 0x00ffff00) \
- == ((PCI_CLASS_MULTIMEDIA << 16) | (PCI_SUBCLASS_MULTIMEDIA_VIDEO << 8)))) \
- || ((((c) & 0x00ffff00) \
- == ((PCI_CLASS_PROCESSOR << 16) | (PCI_SUBCLASS_PROCESSOR_COPROC << 8)))) )
-
-/*
- * PCI classes that have messages printed always. The others are only
- * have a message printed when the vendor/dev IDs are recognised.
- */
-#define PCIALWAYSPRINTCLASSES(c) \
- ( (((c) & 0x00ffff00) \
- == ((PCI_CLASS_PREHISTORIC << 16) | (PCI_SUBCLASS_PREHISTORIC_VGA << 8))) \
- || (((c) & 0x00ff0000) == (PCI_CLASS_DISPLAY << 16)) \
- || ((((c) & 0x00ffff00) \
- == ((PCI_CLASS_MULTIMEDIA << 16) | (PCI_SUBCLASS_MULTIMEDIA_VIDEO << 8)))) )
-
-#define IS_VGA(c) \
- (((c) & 0x00ffff00) \
- == ((PCI_CLASS_DISPLAY << 16) | (PCI_SUBCLASS_DISPLAY_VGA << 8)))
-
-
-static struct pci_slot_match xf86IsolateDevice = {
- PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY, 0
-};
-
-void
-xf86FormatPciBusNumber(int busnum, char *buffer)
-{
- /* 'buffer' should be at least 8 characters long */
- if (busnum < 256)
- sprintf(buffer, "%d", busnum);
- else
- sprintf(buffer, "%d@%d", busnum & 0x00ff, busnum >> 8);
-}
-
-/*
- * xf86Bus.c interface
- */
-
-void
-xf86PciProbe(void)
-{
- int i = 0, k;
- int num = 0;
- struct pci_device *info;
- struct pci_device_iterator *iter;
- struct pci_device ** xf86PciVideoInfo = NULL;
-
-
- if (!xf86scanpci()) {
- xf86PciVideoInfo = NULL;
- return;
- }
-
- iter = pci_slot_match_iterator_create(& xf86IsolateDevice);
- while ((info = pci_device_next(iter)) != NULL) {
- if (PCIINFOCLASSES(info->device_class)) {
- num++;
- xf86PciVideoInfo = xnfrealloc(xf86PciVideoInfo,
- (sizeof(struct pci_device *)
- * (num + 1)));
- xf86PciVideoInfo[num] = NULL;
- xf86PciVideoInfo[num - 1] = info;
-
- pci_device_probe(info);
-#ifdef HAVE_PCI_DEVICE_IS_BOOT_VGA
- if (pci_device_is_boot_vga(info)) {
- primaryBus.type = BUS_PCI;
- primaryBus.id.pci = info;
- }
-#endif
- info->user_data = 0;
- }
- }
- free(iter);
-
- /* If we haven't found a primary device try a different heuristic */
- if (primaryBus.type == BUS_NONE && num) {
- for (i = 0; i < num; i++) {
- uint16_t command;
-
- info = xf86PciVideoInfo[i];
- pci_device_cfg_read_u16(info, & command, 4);
-
- if ((command & PCI_CMD_MEM_ENABLE)
- && ((num == 1) || IS_VGA(info->device_class))) {
- if (primaryBus.type == BUS_NONE) {
- primaryBus.type = BUS_PCI;
- primaryBus.id.pci = info;
- } else {
- xf86Msg(X_NOTICE,
- "More than one possible primary device found\n");
- primaryBus.type ^= (BusType)(-1);
- }
- }
- }
- }
-
- /* Print a summary of the video devices found */
- for (k = 0; k < num; k++) {
- const char *prim = " ";
- Bool memdone = FALSE, iodone = FALSE;
-
-
- info = xf86PciVideoInfo[k];
-
- if (!PCIALWAYSPRINTCLASSES(info->device_class))
- continue;
-
- if (xf86IsPrimaryPci(info))
- prim = "*";
-
- xf86Msg(X_PROBED, "PCI:%s(%u:%u:%u:%u) %04x:%04x:%04x:%04x ", prim,
- info->domain, info->bus, info->dev, info->func,
- info->vendor_id, info->device_id,
- info->subvendor_id, info->subdevice_id);
-
- xf86ErrorF("rev %d", info->revision);
-
- for (i = 0; i < 6; i++) {
- struct pci_mem_region * r = & info->regions[i];
-
- if ( r->size && ! r->is_IO ) {
- if (!memdone) {
- xf86ErrorF(", Mem @ ");
- memdone = TRUE;
- } else
- xf86ErrorF(", ");
- xf86ErrorF("0x%08lx/%ld", (long)r->base_addr, (long)r->size);
- }
- }
-
- for (i = 0; i < 6; i++) {
- struct pci_mem_region * r = & info->regions[i];
-
- if ( r->size && r->is_IO ) {
- if (!iodone) {
- xf86ErrorF(", I/O @ ");
- iodone = TRUE;
- } else
- xf86ErrorF(", ");
- xf86ErrorF("0x%08lx/%ld", (long)r->base_addr, (long)r->size);
- }
- }
-
- if ( info->rom_size ) {
- xf86ErrorF(", BIOS @ 0x\?\?\?\?\?\?\?\?/%ld", (long)info->rom_size);
- }
-
- xf86ErrorF("\n");
- }
- free(xf86PciVideoInfo);
-}
-
-/*
- * If the slot requested is already in use, return -1.
- * Otherwise, claim the slot for the screen requesting it.
- */
-
-int
-xf86ClaimPciSlot(struct pci_device * d, DriverPtr drvp,
- int chipset, GDevPtr dev, Bool active)
-{
- EntityPtr p = NULL;
- int num;
-
- if (xf86CheckPciSlot(d)) {
- num = xf86AllocateEntity();
- p = xf86Entities[num];
- p->driver = drvp;
- p->chipset = chipset;
- p->bus.type = BUS_PCI;
- p->bus.id.pci = d;
- p->active = active;
- p->inUse = FALSE;
- if (dev)
- xf86AddDevToEntity(num, dev);
- pciSlotClaimed = TRUE;
-
- if (active) {
- /* Map in this domain's I/O space */
- p->domainIO = xf86MapLegacyIO(d);
- }
-
- return num;
- } else
- return -1;
-}
-
-/*
- * Unclaim PCI slot, e.g. if probing failed, so that a different driver can claim.
- */
-void
-xf86UnclaimPciSlot(struct pci_device *d)
-{
- int i;
-
- for (i = 0; i < xf86NumEntities; i++) {
- const EntityPtr p = xf86Entities[i];
-
- if ((p->bus.type == BUS_PCI) && (p->bus.id.pci == d)) {
- /* Probably the slot should be deallocated? */
- p->bus.type = BUS_NONE;
- return;
- }
- }
-}
-
-/*
- * Parse a BUS ID string, and return the PCI bus parameters if it was
- * in the correct format for a PCI bus id.
- */
-
-Bool
-xf86ParsePciBusString(const char *busID, int *bus, int *device, int *func)
-{
- /*
- * The format is assumed to be "bus[@domain]:device[:func]", where domain,
- * bus, device and func are decimal integers. domain and func may be
- * omitted and assumed to be zero, although doing this isn't encouraged.
- */
-
- char *p, *s, *d;
- const char *id;
- int i;
-
- if (StringToBusType(busID, &id) != BUS_PCI)
- return FALSE;
-
- s = xstrdup(id);
- p = strtok(s, ":");
- if (p == NULL || *p == 0) {
- free(s);
- return FALSE;
- }
- d = strpbrk(p, "@");
- if (d != NULL) {
- *(d++) = 0;
- for (i = 0; d[i] != 0; i++) {
- if (!isdigit(d[i])) {
- free(s);
- return FALSE;
- }
- }
- }
- for (i = 0; p[i] != 0; i++) {
- if (!isdigit(p[i])) {
- free(s);
- return FALSE;
- }
- }
- *bus = atoi(p);
- if (d != NULL && *d != 0)
- *bus += atoi(d) << 8;
- p = strtok(NULL, ":");
- if (p == NULL || *p == 0) {
- free(s);
- return FALSE;
- }
- for (i = 0; p[i] != 0; i++) {
- if (!isdigit(p[i])) {
- free(s);
- return FALSE;
- }
- }
- *device = atoi(p);
- *func = 0;
- p = strtok(NULL, ":");
- if (p == NULL || *p == 0) {
- free(s);
- return TRUE;
- }
- for (i = 0; p[i] != 0; i++) {
- if (!isdigit(p[i])) {
- free(s);
- return FALSE;
- }
- }
- *func = atoi(p);
- free(s);
- return TRUE;
-}
-
-/*
- * Compare a BUS ID string with a PCI bus id. Return TRUE if they match.
- */
-
-Bool
-xf86ComparePciBusString(const char *busID, int bus, int device, int func)
-{
- int ibus, idevice, ifunc;
-
- if (xf86ParsePciBusString(busID, &ibus, &idevice, &ifunc)) {
- return bus == ibus && device == idevice && func == ifunc;
- } else {
- return FALSE;
- }
-}
-
-/*
- * xf86IsPrimaryPci() -- return TRUE if primary device
- * is PCI and bus, dev and func numbers match.
- */
-
-Bool
-xf86IsPrimaryPci(struct pci_device *pPci)
-{
- return ((primaryBus.type == BUS_PCI) && (pPci == primaryBus.id.pci));
-}
-
-/*
- * xf86GetPciInfoForEntity() -- Get the pciVideoRec of entity.
- */
-struct pci_device *
-xf86GetPciInfoForEntity(int entityIndex)
-{
- EntityPtr p;
-
- if (entityIndex >= xf86NumEntities)
- return NULL;
-
- p = xf86Entities[entityIndex];
- return (p->bus.type == BUS_PCI) ? p->bus.id.pci : NULL;
-}
-
-/*
- * xf86CheckPciMemBase() checks that the memory base value matches one of the
- * PCI base address register values for the given PCI device.
- */
-Bool
-xf86CheckPciMemBase( struct pci_device * pPci, memType base )
-{
- int i;
-
- for (i = 0; i < 6; i++)
- if (base == pPci->regions[i].base_addr)
- return TRUE;
- return FALSE;
-}
-
-/*
- * Check if the slot requested is free. If it is already in use, return FALSE.
- */
-
-Bool
-xf86CheckPciSlot(const struct pci_device *d)
-{
- int i;
-
- for (i = 0; i < xf86NumEntities; i++) {
- const EntityPtr p = xf86Entities[i];
-
- if ((p->bus.type == BUS_PCI) && (p->bus.id.pci == d)) {
- return FALSE;
- }
- }
- return TRUE;
-}
-
-#define END_OF_MATCHES(m) \
- (((m).vendor_id == 0) && ((m).device_id == 0) && ((m).subvendor_id == 0))
-
-Bool
-xf86PciAddMatchingDev(DriverPtr drvp)
-{
- const struct pci_id_match * const devices = drvp->supported_devices;
- int j;
- struct pci_device *pPci;
- struct pci_device_iterator *iter;
- int numFound = 0;
-
-
- iter = pci_id_match_iterator_create(NULL);
- while ((pPci = pci_device_next(iter)) != NULL) {
- /* Determine if this device is supported by the driver. If it is,
- * add it to the list of devices to configure.
- */
- for (j = 0 ; ! END_OF_MATCHES(devices[j]) ; j++) {
- if ( PCI_ID_COMPARE( devices[j].vendor_id, pPci->vendor_id )
- && PCI_ID_COMPARE( devices[j].device_id, pPci->device_id )
- && ((devices[j].device_class_mask & pPci->device_class)
- == devices[j].device_class) ) {
- if (xf86CheckPciSlot(pPci)) {
- GDevPtr pGDev = xf86AddBusDeviceToConfigure(
- drvp->driverName, BUS_PCI, pPci, -1);
- if (pGDev != NULL) {
- /* After configure pass 1, chipID and chipRev are
- * treated as over-rides, so clobber them here.
- */
- pGDev->chipID = -1;
- pGDev->chipRev = -1;
- }
-
- numFound++;
- }
-
- break;
- }
- }
- }
-
- pci_iterator_destroy(iter);
-
- return numFound != 0;
-}
-
-Bool
-xf86PciProbeDev(DriverPtr drvp)
-{
- int i, j;
- struct pci_device * pPci;
- Bool foundScreen = FALSE;
- const struct pci_id_match * const devices = drvp->supported_devices;
- GDevPtr *devList;
- const unsigned numDevs = xf86MatchDevice(drvp->driverName, & devList);
-
- for ( i = 0 ; i < numDevs ; i++ ) {
- struct pci_device_iterator *iter;
- unsigned device_id;
-
-
- /* Find the pciVideoRec associated with this device section.
- */
- iter = pci_id_match_iterator_create(NULL);
- while ((pPci = pci_device_next(iter)) != NULL) {
- if (devList[i]->busID && *devList[i]->busID) {
- if (xf86ComparePciBusString(devList[i]->busID,
- ((pPci->domain << 8)
- | pPci->bus),
- pPci->dev,
- pPci->func)) {
- break;
- }
- }
- else if (xf86IsPrimaryPci(pPci)) {
- break;
- }
- }
-
- pci_iterator_destroy(iter);
-
- if (pPci == NULL) {
- continue;
- }
- device_id = (devList[i]->chipID > 0)
- ? devList[i]->chipID : pPci->device_id;
-
-
- /* Once the pciVideoRec is found, determine if the device is supported
- * by the driver. If it is, probe it!
- */
- for ( j = 0 ; ! END_OF_MATCHES( devices[j] ) ; j++ ) {
- if ( PCI_ID_COMPARE( devices[j].vendor_id, pPci->vendor_id )
- && PCI_ID_COMPARE( devices[j].device_id, device_id )
- && ((devices[j].device_class_mask & pPci->device_class)
- == devices[j].device_class) ) {
- int entry;
-
- /* Allow the same entity to be used more than once for
- * devices with multiple screens per entity. This assumes
- * implicitly that there will be a screen == 0 instance.
- *
- * FIXME Need to make sure that two different drivers don't
- * FIXME claim the same screen > 0 instance.
- */
- if ((devList[i]->screen == 0) && !xf86CheckPciSlot(pPci))
- continue;
-
- DebugF("%s: card at %d:%d:%d is claimed by a Device section\n",
- drvp->driverName, pPci->bus, pPci->dev, pPci->func);
-
- /* Allocate an entry in the lists to be returned */
- entry = xf86ClaimPciSlot(pPci, drvp, device_id,
- devList[i], devList[i]->active);
-
- if ((entry == -1) && (devList[i]->screen > 0)) {
- unsigned k;
-
- for (k = 0; k < xf86NumEntities; k++ ) {
- EntityPtr pEnt = xf86Entities[k];
- if (pEnt->bus.type != BUS_PCI)
- continue;
- if (pEnt->bus.id.pci == pPci) {
- entry = k;
- xf86AddDevToEntity(k, devList[i]);
- break;
- }
- }
- }
-
- if (entry != -1) {
- if ((*drvp->PciProbe)(drvp, entry, pPci,
- devices[j].match_data)) {
- foundScreen = TRUE;
- } else
- xf86UnclaimPciSlot(pPci);
- }
-
- break;
- }
- }
- }
- free(devList);
-
- return foundScreen;
-}
-
-void
-xf86PciIsolateDevice(char *argument)
-{
- int bus, device, func;
-
- if (sscanf(argument, "PCI:%d:%d:%d", &bus, &device, &func) == 3) {
- xf86IsolateDevice.domain = PCI_DOM_FROM_BUS(bus);
- xf86IsolateDevice.bus = PCI_BUS_NO_DOMAIN(bus);
- xf86IsolateDevice.dev = device;
- xf86IsolateDevice.func = func;
- } else
- FatalError("Invalid isolated device specification\n");
-}
-
-static Bool
-pciDeviceHasBars(struct pci_device *pci)
-{
- int i;
-
- for (i = 0; i < 6; i++)
- if (pci->regions[i].size)
- return TRUE;
-
- if (pci->rom_size)
- return TRUE;
-
- return FALSE;
-}
-
-struct Inst {
- struct pci_device * pci;
- GDevPtr dev;
- Bool foundHW; /* PCIid in list of supported chipsets */
- Bool claimed; /* BusID matches with a device section */
- int chip;
- int screen;
-};
-
-
-/**
- * Find set of unclaimed devices matching a given vendor ID.
- *
- * Used by drivers to find as yet unclaimed devices matching the specified
- * vendor ID.
- *
- * \param driverName Name of the driver. This is used to find Device
- * sections in the config file.
- * \param vendorID PCI vendor ID of associated devices. If zero, then
- * the true vendor ID must be encoded in the \c PCIid
- * fields of the \c PCIchipsets entries.
- * \param chipsets Symbol table used to associate chipset names with
- * PCI IDs.
- * \param devList List of Device sections parsed from the config file.
- * \param numDevs Number of entries in \c devList.
- * \param drvp Pointer the driver's control structure.
- * \param foundEntities Returned list of entity indicies associated with the
- * driver.
- *
- * \returns
- * The number of elements in returned in \c foundEntities on success or zero
- * on failure.
- *
- * \todo
- * This function does a bit more than short description says. Fill in some
- * more of the details of its operation.
- *
- * \todo
- * The \c driverName parameter is redundant. It is the same as
- * \c DriverRec::driverName. In a future version of this function, remove
- * that parameter.
- */
-int
-xf86MatchPciInstances(const char *driverName, int vendorID,
- SymTabPtr chipsets, PciChipsets *PCIchipsets,
- GDevPtr *devList, int numDevs, DriverPtr drvp,
- int **foundEntities)
-{
- int i,j;
- struct pci_device * pPci;
- struct pci_device_iterator *iter;
- struct Inst *instances = NULL;
- int numClaimedInstances = 0;
- int allocatedInstances = 0;
- int numFound = 0;
- SymTabRec *c;
- PciChipsets *id;
- int *retEntities = NULL;
-
- *foundEntities = NULL;
-
-
- /* Each PCI device will contribute at least one entry. Each device
- * section can contribute at most one entry. The sum of the two is
- * guaranteed to be larger than the maximum possible number of entries.
- * Do this calculation and memory allocation once now to eliminate the
- * need for realloc calls inside the loop.
- */
- if (!(xf86DoConfigure && xf86DoConfigurePass1)) {
- unsigned max_entries = numDevs;
-
- iter = pci_slot_match_iterator_create(NULL);
- while ((pPci = pci_device_next(iter)) != NULL) {
- max_entries++;
- }
-
- pci_iterator_destroy(iter);
- instances = xnfalloc(max_entries * sizeof(struct Inst));
- }
-
- iter = pci_slot_match_iterator_create(NULL);
- while ((pPci = pci_device_next(iter)) != NULL) {
- unsigned device_class = pPci->device_class;
- Bool foundVendor = FALSE;
-
-
- /* Convert the pre-PCI 2.0 device class for a VGA adapter to the
- * 2.0 version of the same class.
- */
- if ( device_class == 0x00000101 ) {
- device_class = 0x00030000;
- }
-
-
- /* Find PCI devices that match the given vendor ID. The vendor ID is
- * either specified explicitly as a parameter to the function or
- * implicitly encoded in the high bits of id->PCIid.
- *
- * The first device with a matching vendor is recorded, even if the
- * device ID doesn't match. This is done because the Device section
- * in the xorg.conf file can over-ride the device ID. A matching PCI
- * ID might not be found now, but after the device ID over-ride is
- * applied there /might/ be a match.
- */
- for (id = PCIchipsets; id->PCIid != -1; id++) {
- const unsigned vendor_id = ((id->PCIid & 0xFFFF0000) >> 16)
- | vendorID;
- const unsigned device_id = (id->PCIid & 0x0000FFFF);
- const unsigned match_class = 0x00030000 | id->PCIid;
-
- if ((vendor_id == pPci->vendor_id)
- || ((vendorID == PCI_VENDOR_GENERIC) && (match_class == device_class))) {
- if (!foundVendor && (instances != NULL)) {
- ++allocatedInstances;
- instances[allocatedInstances - 1].pci = pPci;
- instances[allocatedInstances - 1].dev = NULL;
- instances[allocatedInstances - 1].claimed = FALSE;
- instances[allocatedInstances - 1].foundHW = FALSE;
- instances[allocatedInstances - 1].screen = 0;
- }
-
- foundVendor = TRUE;
-
- if ( (device_id == pPci->device_id)
- || ((vendorID == PCI_VENDOR_GENERIC)
- && (match_class == device_class)) ) {
- if ( instances != NULL ) {
- instances[allocatedInstances - 1].foundHW = TRUE;
- instances[allocatedInstances - 1].chip = id->numChipset;
- }
-
-
- if ( xf86DoConfigure && xf86DoConfigurePass1 ) {
- if (xf86CheckPciSlot(pPci)) {
- GDevPtr pGDev =
- xf86AddBusDeviceToConfigure(drvp->driverName,
- BUS_PCI, pPci, -1);
- if (pGDev) {
- /* After configure pass 1, chipID and chipRev
- * are treated as over-rides, so clobber them
- * here.
- */
- pGDev->chipID = -1;
- pGDev->chipRev = -1;
- }
-
- numFound++;
- }
- }
- else {
- numFound++;
- }
-
- break;
- }
- }
- }
- }
-
- pci_iterator_destroy(iter);
-
-
- /* In "probe only" or "configure" mode (signaled by instances being NULL),
- * our work is done. Return the number of detected devices.
- */
- if ( instances == NULL ) {
- return numFound;
- }
-
-
- /*
- * This may be debatable, but if no PCI devices with a matching vendor
- * type is found, return zero now. It is probably not desirable to
- * allow the config file to override this.
- */
- if (allocatedInstances <= 0) {
- free(instances);
- return 0;
- }
-
-
- DebugF("%s instances found: %d\n", driverName, allocatedInstances);
-
- /*
- * Check for devices that need duplicated instances. This is required
- * when there is more than one screen per entity.
- *
- * XXX This currently doesn't work for cases where the BusID isn't
- * specified explicitly in the config file.
- */
-
- for (j = 0; j < numDevs; j++) {
- if (devList[j]->screen > 0 && devList[j]->busID
- && *devList[j]->busID) {
- for (i = 0; i < allocatedInstances; i++) {
- pPci = instances[i].pci;
- if (xf86ComparePciBusString(devList[j]->busID,
- PCI_MAKE_BUS( pPci->domain, pPci->bus ),
- pPci->dev,
- pPci->func)) {
- allocatedInstances++;
- instances[allocatedInstances - 1] = instances[i];
- instances[allocatedInstances - 1].screen = devList[j]->screen;
- numFound++;
- break;
- }
- }
- }
- }
-
- for (i = 0; i < allocatedInstances; i++) {
- GDevPtr dev = NULL;
- GDevPtr devBus = NULL;
-
- pPci = instances[i].pci;
- for (j = 0; j < numDevs; j++) {
- if (devList[j]->busID && *devList[j]->busID) {
- if (xf86ComparePciBusString(devList[j]->busID,
- PCI_MAKE_BUS( pPci->domain, pPci->bus ),
- pPci->dev,
- pPci->func) &&
- devList[j]->screen == instances[i].screen) {
-
- if (devBus)
- xf86MsgVerb(X_WARNING,0,
- "%s: More than one matching Device section for "
- "instances\n\t(BusID: %s) found: %s\n",
- driverName, devList[j]->busID,
- devList[j]->identifier);
- else
- devBus = devList[j];
- }
- } else {
- /*
- * if device section without BusID is found
- * only assign to it to the primary device.
- */
- if (xf86IsPrimaryPci(pPci)) {
- xf86Msg(X_PROBED, "Assigning device section with no busID"
- " to primary device\n");
- if (dev || devBus)
- xf86MsgVerb(X_WARNING, 0,
- "%s: More than one matching Device section "
- "found: %s\n", driverName, devList[j]->identifier);
- else
- dev = devList[j];
- }
- }
- }
- if (devBus) dev = devBus; /* busID preferred */
- if (!dev) {
- if (xf86CheckPciSlot(pPci) && pciDeviceHasBars(pPci)) {
- xf86MsgVerb(X_WARNING, 0, "%s: No matching Device section "
- "for instance (BusID PCI:%u@%u:%u:%u) found\n",
- driverName, pPci->domain, pPci->bus, pPci->dev,
- pPci->func);
- }
- } else {
- numClaimedInstances++;
- instances[i].claimed = TRUE;
- instances[i].dev = dev;
- }
- }
- DebugF("%s instances found: %d\n", driverName, numClaimedInstances);
- /*
- * Now check that a chipset or chipID override in the device section
- * is valid. Chipset has precedence over chipID.
- * If chipset is not valid ignore BusSlot completely.
- */
- for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) {
- MessageType from = X_PROBED;
-
- if (!instances[i].claimed) {
- continue;
- }
- if (instances[i].dev->chipset) {
- for (c = chipsets; c->token >= 0; c++) {
- if (xf86NameCmp(c->name, instances[i].dev->chipset) == 0)
- break;
- }
- if (c->token == -1) {
- instances[i].claimed = FALSE;
- numClaimedInstances--;
- xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device "
- "section \"%s\" isn't valid for this driver\n",
- driverName, instances[i].dev->chipset,
- instances[i].dev->identifier);
- } else {
- instances[i].chip = c->token;
-
- for (id = PCIchipsets; id->numChipset >= 0; id++) {
- if (id->numChipset == instances[i].chip)
- break;
- }
- if(id->numChipset >=0){
- xf86Msg(X_CONFIG,"Chipset override: %s\n",
- instances[i].dev->chipset);
- from = X_CONFIG;
- } else {
- instances[i].claimed = FALSE;
- numClaimedInstances--;
- xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device "
- "section \"%s\" isn't a valid PCI chipset\n",
- driverName, instances[i].dev->chipset,
- instances[i].dev->identifier);
- }
- }
- } else if (instances[i].dev->chipID > 0) {
- for (id = PCIchipsets; id->numChipset >= 0; id++) {
- if (id->PCIid == instances[i].dev->chipID)
- break;
- }
- if (id->numChipset == -1) {
- instances[i].claimed = FALSE;
- numClaimedInstances--;
- xf86MsgVerb(X_WARNING, 0, "%s: ChipID 0x%04X in Device "
- "section \"%s\" isn't valid for this driver\n",
- driverName, instances[i].dev->chipID,
- instances[i].dev->identifier);
- } else {
- instances[i].chip = id->numChipset;
-
- xf86Msg( X_CONFIG,"ChipID override: 0x%04X\n",
- instances[i].dev->chipID);
- from = X_CONFIG;
- }
- } else if (!instances[i].foundHW) {
- /*
- * This means that there was no override and the PCI chipType
- * doesn't match one that is supported
- */
- instances[i].claimed = FALSE;
- numClaimedInstances--;
- }
- if (instances[i].claimed == TRUE){
- for (c = chipsets; c->token >= 0; c++) {
- if (c->token == instances[i].chip)
- break;
- }
- xf86Msg(from,"Chipset %s found\n",
- c->name);
- }
- }
-
- /*
- * Of the claimed instances, check that another driver hasn't already
- * claimed its slot.
- */
- numFound = 0;
- for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) {
- if (!instances[i].claimed)
- continue;
- pPci = instances[i].pci;
-
-
- /*
- * Allow the same entity to be used more than once for devices with
- * multiple screens per entity. This assumes implicitly that there
- * will be a screen == 0 instance.
- *
- * XXX Need to make sure that two different drivers don't claim
- * the same screen > 0 instance.
- */
- if (instances[i].screen == 0 && !xf86CheckPciSlot( pPci ))
- continue;
-
- DebugF("%s: card at %d:%d:%d is claimed by a Device section\n",
- driverName, pPci->bus, pPci->dev, pPci->func);
-
- /* Allocate an entry in the lists to be returned */
- numFound++;
- retEntities = xnfrealloc(retEntities, numFound * sizeof(int));
- retEntities[numFound - 1] = xf86ClaimPciSlot( pPci, drvp,
- instances[i].chip,
- instances[i].dev,
- instances[i].dev->active);
- if (retEntities[numFound - 1] == -1 && instances[i].screen > 0) {
- for (j = 0; j < xf86NumEntities; j++) {
- EntityPtr pEnt = xf86Entities[j];
- if (pEnt->bus.type != BUS_PCI)
- continue;
- if (pEnt->bus.id.pci == pPci) {
- retEntities[numFound - 1] = j;
- xf86AddDevToEntity(j, instances[i].dev);
- break;
- }
- }
- }
- }
- free(instances);
- if (numFound > 0) {
- *foundEntities = retEntities;
- }
-
- return numFound;
-}
-
-/*
- * xf86ConfigPciEntityInactive() -- This function can be used
- * to configure an inactive entity as well as to reconfigure an
- * previously active entity inactive. If the entity has been
- * assigned to a screen before it will be removed. If p_chip is
- * non-NULL all static resources listed there will be registered.
- */
-static void
-xf86ConfigPciEntityInactive(EntityInfoPtr pEnt, PciChipsets *p_chip,
- EntityProc init, EntityProc enter,
- EntityProc leave, pointer private)
-{
- ScrnInfoPtr pScrn;
-
- if ((pScrn = xf86FindScreenForEntity(pEnt->index)))
- xf86RemoveEntityFromScreen(pScrn,pEnt->index);
-
- /* shared resources are only needed when entity is active: remove */
- xf86SetEntityFuncs(pEnt->index,init,enter,leave,private);
-}
-
-ScrnInfoPtr
-xf86ConfigPciEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex,
- PciChipsets *p_chip, void *dummy, EntityProc init,
- EntityProc enter, EntityProc leave, pointer private)
-{
- EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
- if (!pEnt) return pScrn;
-
- if (!(pEnt->location.type == BUS_PCI)
- || !xf86GetPciInfoForEntity(entityIndex)) {
- free(pEnt);
- return pScrn;
- }
- if (!pEnt->active) {
- xf86ConfigPciEntityInactive(pEnt, p_chip, init, enter,
- leave, private);
- free(pEnt);
- return pScrn;
- }
-
- if (!pScrn)
- pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag);
- if (xf86IsEntitySharable(entityIndex)) {
- xf86SetEntityShared(entityIndex);
- }
- xf86AddEntityToScreen(pScrn,entityIndex);
- if (xf86IsEntityShared(entityIndex)) {
- return pScrn;
- }
- free(pEnt);
-
- xf86SetEntityFuncs(entityIndex,init,enter,leave,private);
-
- return pScrn;
-}
-
-/*
- * OBSOLETE ! xf86ConfigActivePciEntity() is an obsolete function.
- * It is likely to be removed. Don't use!
- */
-Bool
-xf86ConfigActivePciEntity(ScrnInfoPtr pScrn, int entityIndex,
- PciChipsets *p_chip, void *dummy, EntityProc init,
- EntityProc enter, EntityProc leave, pointer private)
-{
- EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
- if (!pEnt) return FALSE;
-
- if (!pEnt->active || !(pEnt->location.type == BUS_PCI)) {
- free(pEnt);
- return FALSE;
- }
- xf86AddEntityToScreen(pScrn,entityIndex);
-
- free(pEnt);
- if (!xf86SetEntityFuncs(entityIndex,init,enter,leave,private))
- return FALSE;
-
- return TRUE;
-}
-
-static int
-videoPtrToDriverList(struct pci_device *dev,
- char *returnList[], int returnListMax)
-{
- int i;
- /* Add more entries here if we ever return more than 4 drivers for
- any device */
- char *driverList[5] = { NULL, NULL, NULL, NULL, NULL };
-
- switch (dev->vendor_id)
- {
- /* AMD Geode LX */
- case 0x1022:
- if (dev->device_id == 0x2081)
- driverList[0] = "geode";
- break;
- /* older Geode products acquired by AMD still carry an NSC vendor_id */
- case 0x100b:
- if (dev->device_id == 0x0030) {
- /* NSC Geode GX2 specifically */
- driverList[0] = "geode";
- /* GX2 support started its life in the NSC tree and was later
- forked by AMD for GEODE so we keep it as a backup */
- driverList[1] = "nsc";
- } else
- /* other NSC variant e.g. 0x0104 (SC1400), 0x0504 (SCx200) */
- driverList[0] = "nsc";
- break;
- /* Cyrix Geode GX1 */
- case 0x1078:
- if (dev->device_id == 0x0104)
- driverList[0] = "cyrix";
- break;
- case 0x1142: driverList[0] = "apm"; break;
- case 0xedd8: driverList[0] = "ark"; break;
- case 0x1a03: driverList[0] = "ast"; break;
- case 0x1002: driverList[0] = "ati"; break;
- case 0x102c: driverList[0] = "chips"; break;
- case 0x1013: driverList[0] = "cirrus"; break;
- case 0x3d3d: driverList[0] = "glint"; break;
- case 0x105d: driverList[0] = "i128"; break;
- case 0x8086:
- if ((dev->device_id == 0x00d1) || (dev->device_id == 0x7800)) {
- driverList[0] = "i740";
- } else if (dev->device_id == 0x8108) {
- break; /* "hooray" for poulsbo */
- } else {
- driverList[0] = "intel";
- }
- break;
- case 0x102b: driverList[0] = "mga"; break;
- case 0x10c8: driverList[0] = "neomagic"; break;
- case 0x10de: case 0x12d2: driverList[0] = "nv"; break;
- case 0x1106: driverList[0] = "openchrome"; break;
- case 0x1b36: driverList[0] = "qxl"; break;
- case 0x1163: driverList[0] = "rendition"; break;
- case 0x5333:
- switch (dev->device_id)
- {
- case 0x88d0: case 0x88d1: case 0x88f0: case 0x8811:
- case 0x8812: case 0x8814: case 0x8901:
- driverList[0] = "s3"; break;
- case 0x5631: case 0x883d: case 0x8a01: case 0x8a10:
- case 0x8c01: case 0x8c03: case 0x8904: case 0x8a13:
- driverList[0] = "s3virge"; break;
- default:
- driverList[0] = "savage"; break;
- }
- break;
- case 0x1039: driverList[0] = "sis"; break;
- case 0x126f: driverList[0] = "siliconmotion"; break;
- case 0x121a:
- if (dev->device_id < 0x0003)
- driverList[0] = "voodoo";
- else
- driverList[0] = "tdfx";
- break;
- case 0x1011: driverList[0] = "tga"; break;
- case 0x1023: driverList[0] = "trident"; break;
- case 0x100c: driverList[0] = "tseng"; break;
- case 0x80ee: driverList[0] = "vboxvideo"; break;
- case 0x15ad: driverList[0] = "vmware"; break;
- case 0x18ca:
- if (dev->device_id == 0x47)
- driverList[0] = "xgixp";
- else
- driverList[0] = "xgi";
- break;
- default: break;
- }
- for (i = 0; (i < returnListMax) && (driverList[i] != NULL); i++) {
- returnList[i] = xnfstrdup(driverList[i]);
- }
- return i; /* Number of entries added */
-}
-
-#ifdef __linux__
-static int
-xchomp(char *line)
-{
- size_t len = 0;
-
- if (!line) {
- return 1;
- }
-
- len = strlen(line);
- if (line[len - 1] == '\n' && len > 0) {
- line[len - 1] = '\0';
- }
- return 0;
-}
-
-/* This function is used to provide a workaround for binary drivers that
- * don't export their PCI ID's properly. If distros don't end up using this
- * feature it can and should be removed because the symbol-based resolution
- * scheme should be the primary one */
-static void
-matchDriverFromFiles (char** matches, uint16_t match_vendor, uint16_t match_chip)
-{
- DIR *idsdir;
- FILE *fp;
- struct dirent *direntry;
- char *line = NULL;
- size_t len;
- ssize_t read;
- char path_name[256], vendor_str[5], chip_str[5];
- uint16_t vendor, chip;
- int i, j;
-
- idsdir = opendir(PCI_TXT_IDS_PATH);
- if (!idsdir)
- return;
-
- xf86Msg(X_INFO, "Scanning %s directory for additional PCI ID's supported by the drivers\n", PCI_TXT_IDS_PATH);
- direntry = readdir(idsdir);
- /* Read the directory */
- while (direntry) {
- if (direntry->d_name[0] == '.') {
- direntry = readdir(idsdir);
- continue;
- }
- len = strlen(direntry->d_name);
- /* A tiny bit of sanity checking. We should probably do better */
- if (strncmp(&(direntry->d_name[len-4]), ".ids", 4) == 0) {
- /* We need the full path name to open the file */
- strncpy(path_name, PCI_TXT_IDS_PATH, 256);
- strncat(path_name, "/", 1);
- strncat(path_name, direntry->d_name, (256 - strlen(path_name) - 1));
- fp = fopen(path_name, "r");
- if (fp == NULL) {
- xf86Msg(X_ERROR, "Could not open %s for reading. Exiting.\n", path_name);
- goto end;
- }
- /* Read the file */
-#ifdef __GLIBC__
- while ((read = getline(&line, &len, fp)) != -1) {
-#else
- while ((line = fgetln(fp, &len)) != (char *)NULL) {
-#endif /* __GLIBC __ */
- xchomp(line);
- if (isdigit(line[0])) {
- strncpy(vendor_str, line, 4);
- vendor_str[4] = '\0';
- vendor = (int)strtol(vendor_str, NULL, 16);
- if ((strlen(&line[4])) == 0) {
- chip_str[0] = '\0';
- chip = -1;
- } else {
- /* Handle trailing whitespace */
- if (isspace(line[4])) {
- chip_str[0] = '\0';
- chip = -1;
- } else {
- /* Ok, it's a real ID */
- strncpy(chip_str, &line[4], 4);
- chip_str[4] = '\0';
- chip = (int)strtol(chip_str, NULL, 16);
- }
- }
- if (vendor == match_vendor && chip == match_chip ) {
- i = 0;
- while (matches[i]) {
- i++;
- }
- matches[i] = (char*)malloc(sizeof(char) * strlen(direntry->d_name) - 3);
- if (!matches[i]) {
- xf86Msg(X_ERROR, "Could not allocate space for the module name. Exiting.\n");
- goto end;
- }
- /* hack off the .ids suffix. This should guard
- * against other problems, but it will end up
- * taking off anything after the first '.' */
- for (j = 0; j < (strlen(direntry->d_name) - 3) ; j++) {
- if (direntry->d_name[j] == '.') {
- matches[i][j] = '\0';
- break;
- } else {
- matches[i][j] = direntry->d_name[j];
- }
- }
- xf86Msg(X_INFO, "Matched %s from file name %s\n", matches[i], direntry->d_name);
- }
- } else {
- /* TODO Handle driver overrides here */
- }
- }
- fclose(fp);
- }
- direntry = readdir(idsdir);
- }
- end:
- free(line);
- closedir(idsdir);
-}
-#endif /* __linux__ */
-
-/**
- * @return The numbers of found devices that match with the current system
- * drivers.
- */
-int
-xf86PciMatchDriver(char* matches[], int nmatches) {
- int i;
- struct pci_device * info = NULL;
- struct pci_device_iterator *iter;
-
- /* Find the primary device, and get some information about it. */
- iter = pci_slot_match_iterator_create(NULL);
- while ((info = pci_device_next(iter)) != NULL) {
- if (xf86IsPrimaryPci(info)) {
- break;
- }
- }
-
- pci_iterator_destroy(iter);
-#ifdef __linux__
- if (info)
- matchDriverFromFiles(matches, info->vendor_id, info->device_id);
-#endif
-
- for (i = 0; (i < nmatches) && (matches[i]); i++) {
- /* find end of matches list */
- }
-
- if ((info != NULL) && (i < nmatches)) {
- i += videoPtrToDriverList(info, &(matches[i]), nmatches - i);
- }
-
- return i;
-}
-
-Bool
-xf86PciConfigure(void *busData, struct pci_device *pDev)
-{
- struct pci_device * pVideo = NULL;
-
- pVideo = (struct pci_device *) busData;
- if (pDev &&
- (pDev->domain == pVideo->domain) &&
- (pDev->bus == pVideo->bus) &&
- (pDev->dev == pVideo->dev) &&
- (pDev->func == pVideo->func))
- return 0;
-
- return 1;
-}
-
-void
-xf86PciConfigureNewDev(void *busData, struct pci_device *pVideo,
- GDevRec *GDev, int *chipset)
-{
- char busnum[8];
-
- pVideo = (struct pci_device *) busData;
-
- xf86FormatPciBusNumber(pVideo->bus, busnum);
- XNFasprintf(&GDev->busID, "PCI:%s:%d:%d",
- busnum, pVideo->dev, pVideo->func);
-
- GDev->chipID = pVideo->device_id;
- GDev->chipRev = pVideo->revision;
-
- if (*chipset < 0)
- *chipset = (pVideo->vendor_id << 16) | pVideo->device_id;
-}
+/*
+ * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
+ *
+ * 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
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ */
+
+/*
+ * This file contains the interfaces to the bus-specific code
+ */
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <X11/X.h>
+#include <pciaccess.h>
+#include "os.h"
+#include "Pci.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "dirent.h" /* DIR, FILE type definitions */
+
+/* Bus-specific headers */
+#include "xf86Bus.h"
+
+#define XF86_OS_PRIVS
+#include "xf86_OSproc.h"
+
+
+/* Bus-specific globals */
+Bool pciSlotClaimed = FALSE;
+
+#define PCIINFOCLASSES(c) \
+ ( (((c) & 0x00ff0000) == (PCI_CLASS_PREHISTORIC << 16)) \
+ || (((c) & 0x00ff0000) == (PCI_CLASS_DISPLAY << 16)) \
+ || ((((c) & 0x00ffff00) \
+ == ((PCI_CLASS_MULTIMEDIA << 16) | (PCI_SUBCLASS_MULTIMEDIA_VIDEO << 8)))) \
+ || ((((c) & 0x00ffff00) \
+ == ((PCI_CLASS_PROCESSOR << 16) | (PCI_SUBCLASS_PROCESSOR_COPROC << 8)))) )
+
+/*
+ * PCI classes that have messages printed always. The others are only
+ * have a message printed when the vendor/dev IDs are recognised.
+ */
+#define PCIALWAYSPRINTCLASSES(c) \
+ ( (((c) & 0x00ffff00) \
+ == ((PCI_CLASS_PREHISTORIC << 16) | (PCI_SUBCLASS_PREHISTORIC_VGA << 8))) \
+ || (((c) & 0x00ff0000) == (PCI_CLASS_DISPLAY << 16)) \
+ || ((((c) & 0x00ffff00) \
+ == ((PCI_CLASS_MULTIMEDIA << 16) | (PCI_SUBCLASS_MULTIMEDIA_VIDEO << 8)))) )
+
+#define IS_VGA(c) \
+ (((c) & 0x00ffff00) \
+ == ((PCI_CLASS_DISPLAY << 16) | (PCI_SUBCLASS_DISPLAY_VGA << 8)))
+
+
+static struct pci_slot_match xf86IsolateDevice = {
+ PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY, PCI_MATCH_ANY, 0
+};
+
+void
+xf86FormatPciBusNumber(int busnum, char *buffer)
+{
+ /* 'buffer' should be at least 8 characters long */
+ if (busnum < 256)
+ sprintf(buffer, "%d", busnum);
+ else
+ sprintf(buffer, "%d@%d", busnum & 0x00ff, busnum >> 8);
+}
+
+/*
+ * xf86Bus.c interface
+ */
+
+void
+xf86PciProbe(void)
+{
+ int i = 0, k;
+ int num = 0;
+ struct pci_device *info;
+ struct pci_device_iterator *iter;
+ struct pci_device ** xf86PciVideoInfo = NULL;
+
+
+ if (!xf86scanpci()) {
+ xf86PciVideoInfo = NULL;
+ return;
+ }
+
+ iter = pci_slot_match_iterator_create(& xf86IsolateDevice);
+ while ((info = pci_device_next(iter)) != NULL) {
+ if (PCIINFOCLASSES(info->device_class)) {
+ num++;
+ xf86PciVideoInfo = xnfrealloc(xf86PciVideoInfo,
+ (sizeof(struct pci_device *)
+ * (num + 1)));
+ xf86PciVideoInfo[num] = NULL;
+ xf86PciVideoInfo[num - 1] = info;
+
+ pci_device_probe(info);
+ if (pci_device_is_boot_vga(info)) {
+ primaryBus.type = BUS_PCI;
+ primaryBus.id.pci = info;
+ }
+ info->user_data = 0;
+ }
+ }
+ free(iter);
+
+ /* If we haven't found a primary device try a different heuristic */
+ if (primaryBus.type == BUS_NONE && num) {
+ for (i = 0; i < num; i++) {
+ uint16_t command;
+
+ info = xf86PciVideoInfo[i];
+ pci_device_cfg_read_u16(info, & command, 4);
+
+ if ((command & PCI_CMD_MEM_ENABLE)
+ && ((num == 1) || IS_VGA(info->device_class))) {
+ if (primaryBus.type == BUS_NONE) {
+ primaryBus.type = BUS_PCI;
+ primaryBus.id.pci = info;
+ } else {
+ xf86Msg(X_NOTICE,
+ "More than one possible primary device found\n");
+ primaryBus.type ^= (BusType)(-1);
+ }
+ }
+ }
+ }
+
+ /* Print a summary of the video devices found */
+ for (k = 0; k < num; k++) {
+ const char *prim = " ";
+ Bool memdone = FALSE, iodone = FALSE;
+
+
+ info = xf86PciVideoInfo[k];
+
+ if (!PCIALWAYSPRINTCLASSES(info->device_class))
+ continue;
+
+ if (xf86IsPrimaryPci(info))
+ prim = "*";
+
+ xf86Msg(X_PROBED, "PCI:%s(%u:%u:%u:%u) %04x:%04x:%04x:%04x ", prim,
+ info->domain, info->bus, info->dev, info->func,
+ info->vendor_id, info->device_id,
+ info->subvendor_id, info->subdevice_id);
+
+ xf86ErrorF("rev %d", info->revision);
+
+ for (i = 0; i < 6; i++) {
+ struct pci_mem_region * r = & info->regions[i];
+
+ if ( r->size && ! r->is_IO ) {
+ if (!memdone) {
+ xf86ErrorF(", Mem @ ");
+ memdone = TRUE;
+ } else
+ xf86ErrorF(", ");
+ xf86ErrorF("0x%08lx/%ld", (long)r->base_addr, (long)r->size);
+ }
+ }
+
+ for (i = 0; i < 6; i++) {
+ struct pci_mem_region * r = & info->regions[i];
+
+ if ( r->size && r->is_IO ) {
+ if (!iodone) {
+ xf86ErrorF(", I/O @ ");
+ iodone = TRUE;
+ } else
+ xf86ErrorF(", ");
+ xf86ErrorF("0x%08lx/%ld", (long)r->base_addr, (long)r->size);
+ }
+ }
+
+ if ( info->rom_size ) {
+ xf86ErrorF(", BIOS @ 0x\?\?\?\?\?\?\?\?/%ld", (long)info->rom_size);
+ }
+
+ xf86ErrorF("\n");
+ }
+ free(xf86PciVideoInfo);
+}
+
+/*
+ * If the slot requested is already in use, return -1.
+ * Otherwise, claim the slot for the screen requesting it.
+ */
+
+int
+xf86ClaimPciSlot(struct pci_device * d, DriverPtr drvp,
+ int chipset, GDevPtr dev, Bool active)
+{
+ EntityPtr p = NULL;
+ int num;
+
+ if (xf86CheckPciSlot(d)) {
+ num = xf86AllocateEntity();
+ p = xf86Entities[num];
+ p->driver = drvp;
+ p->chipset = chipset;
+ p->bus.type = BUS_PCI;
+ p->bus.id.pci = d;
+ p->active = active;
+ p->inUse = FALSE;
+ if (dev)
+ xf86AddDevToEntity(num, dev);
+ pciSlotClaimed = TRUE;
+
+ return num;
+ } else
+ return -1;
+}
+
+/*
+ * Unclaim PCI slot, e.g. if probing failed, so that a different driver can claim.
+ */
+void
+xf86UnclaimPciSlot(struct pci_device *d)
+{
+ int i;
+
+ for (i = 0; i < xf86NumEntities; i++) {
+ const EntityPtr p = xf86Entities[i];
+
+ if ((p->bus.type == BUS_PCI) && (p->bus.id.pci == d)) {
+ /* Probably the slot should be deallocated? */
+ p->bus.type = BUS_NONE;
+ return;
+ }
+ }
+}
+
+/*
+ * Parse a BUS ID string, and return the PCI bus parameters if it was
+ * in the correct format for a PCI bus id.
+ */
+
+Bool
+xf86ParsePciBusString(const char *busID, int *bus, int *device, int *func)
+{
+ /*
+ * The format is assumed to be "bus[@domain]:device[:func]", where domain,
+ * bus, device and func are decimal integers. domain and func may be
+ * omitted and assumed to be zero, although doing this isn't encouraged.
+ */
+
+ char *p, *s, *d;
+ const char *id;
+ int i;
+
+ if (StringToBusType(busID, &id) != BUS_PCI)
+ return FALSE;
+
+ s = xstrdup(id);
+ p = strtok(s, ":");
+ if (p == NULL || *p == 0) {
+ free(s);
+ return FALSE;
+ }
+ d = strpbrk(p, "@");
+ if (d != NULL) {
+ *(d++) = 0;
+ for (i = 0; d[i] != 0; i++) {
+ if (!isdigit(d[i])) {
+ free(s);
+ return FALSE;
+ }
+ }
+ }
+ for (i = 0; p[i] != 0; i++) {
+ if (!isdigit(p[i])) {
+ free(s);
+ return FALSE;
+ }
+ }
+ *bus = atoi(p);
+ if (d != NULL && *d != 0)
+ *bus += atoi(d) << 8;
+ p = strtok(NULL, ":");
+ if (p == NULL || *p == 0) {
+ free(s);
+ return FALSE;
+ }
+ for (i = 0; p[i] != 0; i++) {
+ if (!isdigit(p[i])) {
+ free(s);
+ return FALSE;
+ }
+ }
+ *device = atoi(p);
+ *func = 0;
+ p = strtok(NULL, ":");
+ if (p == NULL || *p == 0) {
+ free(s);
+ return TRUE;
+ }
+ for (i = 0; p[i] != 0; i++) {
+ if (!isdigit(p[i])) {
+ free(s);
+ return FALSE;
+ }
+ }
+ *func = atoi(p);
+ free(s);
+ return TRUE;
+}
+
+/*
+ * Compare a BUS ID string with a PCI bus id. Return TRUE if they match.
+ */
+
+Bool
+xf86ComparePciBusString(const char *busID, int bus, int device, int func)
+{
+ int ibus, idevice, ifunc;
+
+ if (xf86ParsePciBusString(busID, &ibus, &idevice, &ifunc)) {
+ return bus == ibus && device == idevice && func == ifunc;
+ } else {
+ return FALSE;
+ }
+}
+
+/*
+ * xf86IsPrimaryPci() -- return TRUE if primary device
+ * is PCI and bus, dev and func numbers match.
+ */
+
+Bool
+xf86IsPrimaryPci(struct pci_device *pPci)
+{
+ return ((primaryBus.type == BUS_PCI) && (pPci == primaryBus.id.pci));
+}
+
+/*
+ * xf86GetPciInfoForEntity() -- Get the pciVideoRec of entity.
+ */
+struct pci_device *
+xf86GetPciInfoForEntity(int entityIndex)
+{
+ EntityPtr p;
+
+ if (entityIndex >= xf86NumEntities)
+ return NULL;
+
+ p = xf86Entities[entityIndex];
+ return (p->bus.type == BUS_PCI) ? p->bus.id.pci : NULL;
+}
+
+/*
+ * xf86CheckPciMemBase() checks that the memory base value matches one of the
+ * PCI base address register values for the given PCI device.
+ */
+Bool
+xf86CheckPciMemBase( struct pci_device * pPci, memType base )
+{
+ int i;
+
+ for (i = 0; i < 6; i++)
+ if (base == pPci->regions[i].base_addr)
+ return TRUE;
+ return FALSE;
+}
+
+/*
+ * Check if the slot requested is free. If it is already in use, return FALSE.
+ */
+
+Bool
+xf86CheckPciSlot(const struct pci_device *d)
+{
+ int i;
+
+ for (i = 0; i < xf86NumEntities; i++) {
+ const EntityPtr p = xf86Entities[i];
+
+ if ((p->bus.type == BUS_PCI) && (p->bus.id.pci == d)) {
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+#define END_OF_MATCHES(m) \
+ (((m).vendor_id == 0) && ((m).device_id == 0) && ((m).subvendor_id == 0))
+
+Bool
+xf86PciAddMatchingDev(DriverPtr drvp)
+{
+ const struct pci_id_match * const devices = drvp->supported_devices;
+ int j;
+ struct pci_device *pPci;
+ struct pci_device_iterator *iter;
+ int numFound = 0;
+
+
+ iter = pci_id_match_iterator_create(NULL);
+ while ((pPci = pci_device_next(iter)) != NULL) {
+ /* Determine if this device is supported by the driver. If it is,
+ * add it to the list of devices to configure.
+ */
+ for (j = 0 ; ! END_OF_MATCHES(devices[j]) ; j++) {
+ if ( PCI_ID_COMPARE( devices[j].vendor_id, pPci->vendor_id )
+ && PCI_ID_COMPARE( devices[j].device_id, pPci->device_id )
+ && ((devices[j].device_class_mask & pPci->device_class)
+ == devices[j].device_class) ) {
+ if (xf86CheckPciSlot(pPci)) {
+ GDevPtr pGDev = xf86AddBusDeviceToConfigure(
+ drvp->driverName, BUS_PCI, pPci, -1);
+ if (pGDev != NULL) {
+ /* After configure pass 1, chipID and chipRev are
+ * treated as over-rides, so clobber them here.
+ */
+ pGDev->chipID = -1;
+ pGDev->chipRev = -1;
+ }
+
+ numFound++;
+ }
+
+ break;
+ }
+ }
+ }
+
+ pci_iterator_destroy(iter);
+
+ return numFound != 0;
+}
+
+Bool
+xf86PciProbeDev(DriverPtr drvp)
+{
+ int i, j;
+ struct pci_device * pPci;
+ Bool foundScreen = FALSE;
+ const struct pci_id_match * const devices = drvp->supported_devices;
+ GDevPtr *devList;
+ const unsigned numDevs = xf86MatchDevice(drvp->driverName, & devList);
+
+ for ( i = 0 ; i < numDevs ; i++ ) {
+ struct pci_device_iterator *iter;
+ unsigned device_id;
+
+
+ /* Find the pciVideoRec associated with this device section.
+ */
+ iter = pci_id_match_iterator_create(NULL);
+ while ((pPci = pci_device_next(iter)) != NULL) {
+ if (devList[i]->busID && *devList[i]->busID) {
+ if (xf86ComparePciBusString(devList[i]->busID,
+ ((pPci->domain << 8)
+ | pPci->bus),
+ pPci->dev,
+ pPci->func)) {
+ break;
+ }
+ }
+ else if (xf86IsPrimaryPci(pPci)) {
+ break;
+ }
+ }
+
+ pci_iterator_destroy(iter);
+
+ if (pPci == NULL) {
+ continue;
+ }
+ device_id = (devList[i]->chipID > 0)
+ ? devList[i]->chipID : pPci->device_id;
+
+
+ /* Once the pciVideoRec is found, determine if the device is supported
+ * by the driver. If it is, probe it!
+ */
+ for ( j = 0 ; ! END_OF_MATCHES( devices[j] ) ; j++ ) {
+ if ( PCI_ID_COMPARE( devices[j].vendor_id, pPci->vendor_id )
+ && PCI_ID_COMPARE( devices[j].device_id, device_id )
+ && ((devices[j].device_class_mask & pPci->device_class)
+ == devices[j].device_class) ) {
+ int entry;
+
+ /* Allow the same entity to be used more than once for
+ * devices with multiple screens per entity. This assumes
+ * implicitly that there will be a screen == 0 instance.
+ *
+ * FIXME Need to make sure that two different drivers don't
+ * FIXME claim the same screen > 0 instance.
+ */
+ if ((devList[i]->screen == 0) && !xf86CheckPciSlot(pPci))
+ continue;
+
+ DebugF("%s: card at %d:%d:%d is claimed by a Device section\n",
+ drvp->driverName, pPci->bus, pPci->dev, pPci->func);
+
+ /* Allocate an entry in the lists to be returned */
+ entry = xf86ClaimPciSlot(pPci, drvp, device_id,
+ devList[i], devList[i]->active);
+
+ if ((entry == -1) && (devList[i]->screen > 0)) {
+ unsigned k;
+
+ for (k = 0; k < xf86NumEntities; k++ ) {
+ EntityPtr pEnt = xf86Entities[k];
+ if (pEnt->bus.type != BUS_PCI)
+ continue;
+ if (pEnt->bus.id.pci == pPci) {
+ entry = k;
+ xf86AddDevToEntity(k, devList[i]);
+ break;
+ }
+ }
+ }
+
+ if (entry != -1) {
+ if ((*drvp->PciProbe)(drvp, entry, pPci,
+ devices[j].match_data)) {
+ foundScreen = TRUE;
+ } else
+ xf86UnclaimPciSlot(pPci);
+ }
+
+ break;
+ }
+ }
+ }
+ free(devList);
+
+ return foundScreen;
+}
+
+void
+xf86PciIsolateDevice(char *argument)
+{
+ int bus, device, func;
+
+ if (sscanf(argument, "PCI:%d:%d:%d", &bus, &device, &func) == 3) {
+ xf86IsolateDevice.domain = PCI_DOM_FROM_BUS(bus);
+ xf86IsolateDevice.bus = PCI_BUS_NO_DOMAIN(bus);
+ xf86IsolateDevice.dev = device;
+ xf86IsolateDevice.func = func;
+ } else
+ FatalError("Invalid isolated device specification\n");
+}
+
+static Bool
+pciDeviceHasBars(struct pci_device *pci)
+{
+ int i;
+
+ for (i = 0; i < 6; i++)
+ if (pci->regions[i].size)
+ return TRUE;
+
+ if (pci->rom_size)
+ return TRUE;
+
+ return FALSE;
+}
+
+struct Inst {
+ struct pci_device * pci;
+ GDevPtr dev;
+ Bool foundHW; /* PCIid in list of supported chipsets */
+ Bool claimed; /* BusID matches with a device section */
+ int chip;
+ int screen;
+};
+
+
+/**
+ * Find set of unclaimed devices matching a given vendor ID.
+ *
+ * Used by drivers to find as yet unclaimed devices matching the specified
+ * vendor ID.
+ *
+ * \param driverName Name of the driver. This is used to find Device
+ * sections in the config file.
+ * \param vendorID PCI vendor ID of associated devices. If zero, then
+ * the true vendor ID must be encoded in the \c PCIid
+ * fields of the \c PCIchipsets entries.
+ * \param chipsets Symbol table used to associate chipset names with
+ * PCI IDs.
+ * \param devList List of Device sections parsed from the config file.
+ * \param numDevs Number of entries in \c devList.
+ * \param drvp Pointer the driver's control structure.
+ * \param foundEntities Returned list of entity indicies associated with the
+ * driver.
+ *
+ * \returns
+ * The number of elements in returned in \c foundEntities on success or zero
+ * on failure.
+ *
+ * \todo
+ * This function does a bit more than short description says. Fill in some
+ * more of the details of its operation.
+ *
+ * \todo
+ * The \c driverName parameter is redundant. It is the same as
+ * \c DriverRec::driverName. In a future version of this function, remove
+ * that parameter.
+ */
+int
+xf86MatchPciInstances(const char *driverName, int vendorID,
+ SymTabPtr chipsets, PciChipsets *PCIchipsets,
+ GDevPtr *devList, int numDevs, DriverPtr drvp,
+ int **foundEntities)
+{
+ int i,j;
+ struct pci_device * pPci;
+ struct pci_device_iterator *iter;
+ struct Inst *instances = NULL;
+ int numClaimedInstances = 0;
+ int allocatedInstances = 0;
+ int numFound = 0;
+ SymTabRec *c;
+ PciChipsets *id;
+ int *retEntities = NULL;
+
+ *foundEntities = NULL;
+
+
+ /* Each PCI device will contribute at least one entry. Each device
+ * section can contribute at most one entry. The sum of the two is
+ * guaranteed to be larger than the maximum possible number of entries.
+ * Do this calculation and memory allocation once now to eliminate the
+ * need for realloc calls inside the loop.
+ */
+ if (!(xf86DoConfigure && xf86DoConfigurePass1)) {
+ unsigned max_entries = numDevs;
+
+ iter = pci_slot_match_iterator_create(NULL);
+ while ((pPci = pci_device_next(iter)) != NULL) {
+ max_entries++;
+ }
+
+ pci_iterator_destroy(iter);
+ instances = xnfalloc(max_entries * sizeof(struct Inst));
+ }
+
+ iter = pci_slot_match_iterator_create(NULL);
+ while ((pPci = pci_device_next(iter)) != NULL) {
+ unsigned device_class = pPci->device_class;
+ Bool foundVendor = FALSE;
+
+
+ /* Convert the pre-PCI 2.0 device class for a VGA adapter to the
+ * 2.0 version of the same class.
+ */
+ if ( device_class == 0x00000101 ) {
+ device_class = 0x00030000;
+ }
+
+
+ /* Find PCI devices that match the given vendor ID. The vendor ID is
+ * either specified explicitly as a parameter to the function or
+ * implicitly encoded in the high bits of id->PCIid.
+ *
+ * The first device with a matching vendor is recorded, even if the
+ * device ID doesn't match. This is done because the Device section
+ * in the xorg.conf file can over-ride the device ID. A matching PCI
+ * ID might not be found now, but after the device ID over-ride is
+ * applied there /might/ be a match.
+ */
+ for (id = PCIchipsets; id->PCIid != -1; id++) {
+ const unsigned vendor_id = ((id->PCIid & 0xFFFF0000) >> 16)
+ | vendorID;
+ const unsigned device_id = (id->PCIid & 0x0000FFFF);
+ const unsigned match_class = 0x00030000 | id->PCIid;
+
+ if ((vendor_id == pPci->vendor_id)
+ || ((vendorID == PCI_VENDOR_GENERIC) && (match_class == device_class))) {
+ if (!foundVendor && (instances != NULL)) {
+ ++allocatedInstances;
+ instances[allocatedInstances - 1].pci = pPci;
+ instances[allocatedInstances - 1].dev = NULL;
+ instances[allocatedInstances - 1].claimed = FALSE;
+ instances[allocatedInstances - 1].foundHW = FALSE;
+ instances[allocatedInstances - 1].screen = 0;
+ }
+
+ foundVendor = TRUE;
+
+ if ( (device_id == pPci->device_id)
+ || ((vendorID == PCI_VENDOR_GENERIC)
+ && (match_class == device_class)) ) {
+ if ( instances != NULL ) {
+ instances[allocatedInstances - 1].foundHW = TRUE;
+ instances[allocatedInstances - 1].chip = id->numChipset;
+ }
+
+
+ if ( xf86DoConfigure && xf86DoConfigurePass1 ) {
+ if (xf86CheckPciSlot(pPci)) {
+ GDevPtr pGDev =
+ xf86AddBusDeviceToConfigure(drvp->driverName,
+ BUS_PCI, pPci, -1);
+ if (pGDev) {
+ /* After configure pass 1, chipID and chipRev
+ * are treated as over-rides, so clobber them
+ * here.
+ */
+ pGDev->chipID = -1;
+ pGDev->chipRev = -1;
+ }
+
+ numFound++;
+ }
+ }
+ else {
+ numFound++;
+ }
+
+ break;
+ }
+ }
+ }
+ }
+
+ pci_iterator_destroy(iter);
+
+
+ /* In "probe only" or "configure" mode (signaled by instances being NULL),
+ * our work is done. Return the number of detected devices.
+ */
+ if ( instances == NULL ) {
+ return numFound;
+ }
+
+
+ /*
+ * This may be debatable, but if no PCI devices with a matching vendor
+ * type is found, return zero now. It is probably not desirable to
+ * allow the config file to override this.
+ */
+ if (allocatedInstances <= 0) {
+ free(instances);
+ return 0;
+ }
+
+
+ DebugF("%s instances found: %d\n", driverName, allocatedInstances);
+
+ /*
+ * Check for devices that need duplicated instances. This is required
+ * when there is more than one screen per entity.
+ *
+ * XXX This currently doesn't work for cases where the BusID isn't
+ * specified explicitly in the config file.
+ */
+
+ for (j = 0; j < numDevs; j++) {
+ if (devList[j]->screen > 0 && devList[j]->busID
+ && *devList[j]->busID) {
+ for (i = 0; i < allocatedInstances; i++) {
+ pPci = instances[i].pci;
+ if (xf86ComparePciBusString(devList[j]->busID,
+ PCI_MAKE_BUS( pPci->domain, pPci->bus ),
+ pPci->dev,
+ pPci->func)) {
+ allocatedInstances++;
+ instances[allocatedInstances - 1] = instances[i];
+ instances[allocatedInstances - 1].screen = devList[j]->screen;
+ numFound++;
+ break;
+ }
+ }
+ }
+ }
+
+ for (i = 0; i < allocatedInstances; i++) {
+ GDevPtr dev = NULL;
+ GDevPtr devBus = NULL;
+
+ pPci = instances[i].pci;
+ for (j = 0; j < numDevs; j++) {
+ if (devList[j]->busID && *devList[j]->busID) {
+ if (xf86ComparePciBusString(devList[j]->busID,
+ PCI_MAKE_BUS( pPci->domain, pPci->bus ),
+ pPci->dev,
+ pPci->func) &&
+ devList[j]->screen == instances[i].screen) {
+
+ if (devBus)
+ xf86MsgVerb(X_WARNING,0,
+ "%s: More than one matching Device section for "
+ "instances\n\t(BusID: %s) found: %s\n",
+ driverName, devList[j]->busID,
+ devList[j]->identifier);
+ else
+ devBus = devList[j];
+ }
+ } else {
+ /*
+ * if device section without BusID is found
+ * only assign to it to the primary device.
+ */
+ if (xf86IsPrimaryPci(pPci)) {
+ xf86Msg(X_PROBED, "Assigning device section with no busID"
+ " to primary device\n");
+ if (dev || devBus)
+ xf86MsgVerb(X_WARNING, 0,
+ "%s: More than one matching Device section "
+ "found: %s\n", driverName, devList[j]->identifier);
+ else
+ dev = devList[j];
+ }
+ }
+ }
+ if (devBus) dev = devBus; /* busID preferred */
+ if (!dev) {
+ if (xf86CheckPciSlot(pPci) && pciDeviceHasBars(pPci)) {
+ xf86MsgVerb(X_WARNING, 0, "%s: No matching Device section "
+ "for instance (BusID PCI:%u@%u:%u:%u) found\n",
+ driverName, pPci->domain, pPci->bus, pPci->dev,
+ pPci->func);
+ }
+ } else {
+ numClaimedInstances++;
+ instances[i].claimed = TRUE;
+ instances[i].dev = dev;
+ }
+ }
+ DebugF("%s instances found: %d\n", driverName, numClaimedInstances);
+ /*
+ * Now check that a chipset or chipID override in the device section
+ * is valid. Chipset has precedence over chipID.
+ * If chipset is not valid ignore BusSlot completely.
+ */
+ for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) {
+ MessageType from = X_PROBED;
+
+ if (!instances[i].claimed) {
+ continue;
+ }
+ if (instances[i].dev->chipset) {
+ for (c = chipsets; c->token >= 0; c++) {
+ if (xf86NameCmp(c->name, instances[i].dev->chipset) == 0)
+ break;
+ }
+ if (c->token == -1) {
+ instances[i].claimed = FALSE;
+ numClaimedInstances--;
+ xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device "
+ "section \"%s\" isn't valid for this driver\n",
+ driverName, instances[i].dev->chipset,
+ instances[i].dev->identifier);
+ } else {
+ instances[i].chip = c->token;
+
+ for (id = PCIchipsets; id->numChipset >= 0; id++) {
+ if (id->numChipset == instances[i].chip)
+ break;
+ }
+ if(id->numChipset >=0){
+ xf86Msg(X_CONFIG,"Chipset override: %s\n",
+ instances[i].dev->chipset);
+ from = X_CONFIG;
+ } else {
+ instances[i].claimed = FALSE;
+ numClaimedInstances--;
+ xf86MsgVerb(X_WARNING, 0, "%s: Chipset \"%s\" in Device "
+ "section \"%s\" isn't a valid PCI chipset\n",
+ driverName, instances[i].dev->chipset,
+ instances[i].dev->identifier);
+ }
+ }
+ } else if (instances[i].dev->chipID > 0) {
+ for (id = PCIchipsets; id->numChipset >= 0; id++) {
+ if (id->PCIid == instances[i].dev->chipID)
+ break;
+ }
+ if (id->numChipset == -1) {
+ instances[i].claimed = FALSE;
+ numClaimedInstances--;
+ xf86MsgVerb(X_WARNING, 0, "%s: ChipID 0x%04X in Device "
+ "section \"%s\" isn't valid for this driver\n",
+ driverName, instances[i].dev->chipID,
+ instances[i].dev->identifier);
+ } else {
+ instances[i].chip = id->numChipset;
+
+ xf86Msg( X_CONFIG,"ChipID override: 0x%04X\n",
+ instances[i].dev->chipID);
+ from = X_CONFIG;
+ }
+ } else if (!instances[i].foundHW) {
+ /*
+ * This means that there was no override and the PCI chipType
+ * doesn't match one that is supported
+ */
+ instances[i].claimed = FALSE;
+ numClaimedInstances--;
+ }
+ if (instances[i].claimed == TRUE){
+ for (c = chipsets; c->token >= 0; c++) {
+ if (c->token == instances[i].chip)
+ break;
+ }
+ xf86Msg(from,"Chipset %s found\n",
+ c->name);
+ }
+ }
+
+ /*
+ * Of the claimed instances, check that another driver hasn't already
+ * claimed its slot.
+ */
+ numFound = 0;
+ for (i = 0; i < allocatedInstances && numClaimedInstances > 0; i++) {
+ if (!instances[i].claimed)
+ continue;
+ pPci = instances[i].pci;
+
+
+ /*
+ * Allow the same entity to be used more than once for devices with
+ * multiple screens per entity. This assumes implicitly that there
+ * will be a screen == 0 instance.
+ *
+ * XXX Need to make sure that two different drivers don't claim
+ * the same screen > 0 instance.
+ */
+ if (instances[i].screen == 0 && !xf86CheckPciSlot( pPci ))
+ continue;
+
+ DebugF("%s: card at %d:%d:%d is claimed by a Device section\n",
+ driverName, pPci->bus, pPci->dev, pPci->func);
+
+ /* Allocate an entry in the lists to be returned */
+ numFound++;
+ retEntities = xnfrealloc(retEntities, numFound * sizeof(int));
+ retEntities[numFound - 1] = xf86ClaimPciSlot( pPci, drvp,
+ instances[i].chip,
+ instances[i].dev,
+ instances[i].dev->active);
+ if (retEntities[numFound - 1] == -1 && instances[i].screen > 0) {
+ for (j = 0; j < xf86NumEntities; j++) {
+ EntityPtr pEnt = xf86Entities[j];
+ if (pEnt->bus.type != BUS_PCI)
+ continue;
+ if (pEnt->bus.id.pci == pPci) {
+ retEntities[numFound - 1] = j;
+ xf86AddDevToEntity(j, instances[i].dev);
+ break;
+ }
+ }
+ }
+ }
+ free(instances);
+ if (numFound > 0) {
+ *foundEntities = retEntities;
+ }
+
+ return numFound;
+}
+
+/*
+ * xf86ConfigPciEntityInactive() -- This function can be used
+ * to configure an inactive entity as well as to reconfigure an
+ * previously active entity inactive. If the entity has been
+ * assigned to a screen before it will be removed. If p_chip is
+ * non-NULL all static resources listed there will be registered.
+ */
+static void
+xf86ConfigPciEntityInactive(EntityInfoPtr pEnt, PciChipsets *p_chip,
+ EntityProc init, EntityProc enter,
+ EntityProc leave, pointer private)
+{
+ ScrnInfoPtr pScrn;
+
+ if ((pScrn = xf86FindScreenForEntity(pEnt->index)))
+ xf86RemoveEntityFromScreen(pScrn,pEnt->index);
+
+ /* shared resources are only needed when entity is active: remove */
+ xf86SetEntityFuncs(pEnt->index,init,enter,leave,private);
+}
+
+ScrnInfoPtr
+xf86ConfigPciEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex,
+ PciChipsets *p_chip, void *dummy, EntityProc init,
+ EntityProc enter, EntityProc leave, pointer private)
+{
+ EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
+ if (!pEnt) return pScrn;
+
+ if (!(pEnt->location.type == BUS_PCI)
+ || !xf86GetPciInfoForEntity(entityIndex)) {
+ free(pEnt);
+ return pScrn;
+ }
+ if (!pEnt->active) {
+ xf86ConfigPciEntityInactive(pEnt, p_chip, init, enter,
+ leave, private);
+ free(pEnt);
+ return pScrn;
+ }
+
+ if (!pScrn)
+ pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag);
+ if (xf86IsEntitySharable(entityIndex)) {
+ xf86SetEntityShared(entityIndex);
+ }
+ xf86AddEntityToScreen(pScrn,entityIndex);
+ if (xf86IsEntityShared(entityIndex)) {
+ return pScrn;
+ }
+ free(pEnt);
+
+ xf86SetEntityFuncs(entityIndex,init,enter,leave,private);
+
+ return pScrn;
+}
+
+/*
+ * OBSOLETE ! xf86ConfigActivePciEntity() is an obsolete function.
+ * It is likely to be removed. Don't use!
+ */
+Bool
+xf86ConfigActivePciEntity(ScrnInfoPtr pScrn, int entityIndex,
+ PciChipsets *p_chip, void *dummy, EntityProc init,
+ EntityProc enter, EntityProc leave, pointer private)
+{
+ EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
+ if (!pEnt) return FALSE;
+
+ if (!pEnt->active || !(pEnt->location.type == BUS_PCI)) {
+ free(pEnt);
+ return FALSE;
+ }
+ xf86AddEntityToScreen(pScrn,entityIndex);
+
+ free(pEnt);
+ if (!xf86SetEntityFuncs(entityIndex,init,enter,leave,private))
+ return FALSE;
+
+ return TRUE;
+}
+
+static int
+videoPtrToDriverList(struct pci_device *dev,
+ char *returnList[], int returnListMax)
+{
+ int i;
+ /* Add more entries here if we ever return more than 4 drivers for
+ any device */
+ char *driverList[5] = { NULL, NULL, NULL, NULL, NULL };
+
+ switch (dev->vendor_id)
+ {
+ /* AMD Geode LX */
+ case 0x1022:
+ if (dev->device_id == 0x2081)
+ driverList[0] = "geode";
+ break;
+ /* older Geode products acquired by AMD still carry an NSC vendor_id */
+ case 0x100b:
+ if (dev->device_id == 0x0030) {
+ /* NSC Geode GX2 specifically */
+ driverList[0] = "geode";
+ /* GX2 support started its life in the NSC tree and was later
+ forked by AMD for GEODE so we keep it as a backup */
+ driverList[1] = "nsc";
+ } else
+ /* other NSC variant e.g. 0x0104 (SC1400), 0x0504 (SCx200) */
+ driverList[0] = "nsc";
+ break;
+ /* Cyrix Geode GX1 */
+ case 0x1078:
+ if (dev->device_id == 0x0104)
+ driverList[0] = "cyrix";
+ break;
+ case 0x1142: driverList[0] = "apm"; break;
+ case 0xedd8: driverList[0] = "ark"; break;
+ case 0x1a03: driverList[0] = "ast"; break;
+ case 0x1002: driverList[0] = "ati"; break;
+ case 0x102c: driverList[0] = "chips"; break;
+ case 0x1013: driverList[0] = "cirrus"; break;
+ case 0x3d3d: driverList[0] = "glint"; break;
+ case 0x105d: driverList[0] = "i128"; break;
+ case 0x8086:
+ if ((dev->device_id == 0x00d1) || (dev->device_id == 0x7800)) {
+ driverList[0] = "i740";
+ } else if (dev->device_id == 0x8108) {
+ break; /* "hooray" for poulsbo */
+ } else {
+ driverList[0] = "intel";
+ }
+ break;
+ case 0x102b: driverList[0] = "mga"; break;
+ case 0x10c8: driverList[0] = "neomagic"; break;
+ case 0x10de: case 0x12d2: driverList[0] = "nv"; break;
+ case 0x1106: driverList[0] = "openchrome"; break;
+ case 0x1b36: driverList[0] = "qxl"; break;
+ case 0x1163: driverList[0] = "rendition"; break;
+ case 0x5333:
+ switch (dev->device_id)
+ {
+ case 0x88d0: case 0x88d1: case 0x88f0: case 0x8811:
+ case 0x8812: case 0x8814: case 0x8901:
+ driverList[0] = "s3"; break;
+ case 0x5631: case 0x883d: case 0x8a01: case 0x8a10:
+ case 0x8c01: case 0x8c03: case 0x8904: case 0x8a13:
+ driverList[0] = "s3virge"; break;
+ default:
+ driverList[0] = "savage"; break;
+ }
+ break;
+ case 0x1039: driverList[0] = "sis"; break;
+ case 0x126f: driverList[0] = "siliconmotion"; break;
+ case 0x121a:
+ if (dev->device_id < 0x0003)
+ driverList[0] = "voodoo";
+ else
+ driverList[0] = "tdfx";
+ break;
+ case 0x1011: driverList[0] = "tga"; break;
+ case 0x1023: driverList[0] = "trident"; break;
+ case 0x100c: driverList[0] = "tseng"; break;
+ case 0x80ee: driverList[0] = "vboxvideo"; break;
+ case 0x15ad: driverList[0] = "vmware"; break;
+ case 0x18ca:
+ if (dev->device_id == 0x47)
+ driverList[0] = "xgixp";
+ else
+ driverList[0] = "xgi";
+ break;
+ default: break;
+ }
+ for (i = 0; (i < returnListMax) && (driverList[i] != NULL); i++) {
+ returnList[i] = xnfstrdup(driverList[i]);
+ }
+ return i; /* Number of entries added */
+}
+
+#ifdef __linux__
+static int
+xchomp(char *line)
+{
+ size_t len = 0;
+
+ if (!line) {
+ return 1;
+ }
+
+ len = strlen(line);
+ if (line[len - 1] == '\n' && len > 0) {
+ line[len - 1] = '\0';
+ }
+ return 0;
+}
+
+/* This function is used to provide a workaround for binary drivers that
+ * don't export their PCI ID's properly. If distros don't end up using this
+ * feature it can and should be removed because the symbol-based resolution
+ * scheme should be the primary one */
+static void
+matchDriverFromFiles (char** matches, uint16_t match_vendor, uint16_t match_chip)
+{
+ DIR *idsdir;
+ FILE *fp;
+ struct dirent *direntry;
+ char *line = NULL;
+ size_t len;
+ ssize_t read;
+ char path_name[256], vendor_str[5], chip_str[5];
+ uint16_t vendor, chip;
+ int i, j;
+
+ idsdir = opendir(PCI_TXT_IDS_PATH);
+ if (!idsdir)
+ return;
+
+ xf86Msg(X_INFO, "Scanning %s directory for additional PCI ID's supported by the drivers\n", PCI_TXT_IDS_PATH);
+ direntry = readdir(idsdir);
+ /* Read the directory */
+ while (direntry) {
+ if (direntry->d_name[0] == '.') {
+ direntry = readdir(idsdir);
+ continue;
+ }
+ len = strlen(direntry->d_name);
+ /* A tiny bit of sanity checking. We should probably do better */
+ if (strncmp(&(direntry->d_name[len-4]), ".ids", 4) == 0) {
+ /* We need the full path name to open the file */
+ strncpy(path_name, PCI_TXT_IDS_PATH, 256);
+ strncat(path_name, "/", 1);
+ strncat(path_name, direntry->d_name, (256 - strlen(path_name) - 1));
+ fp = fopen(path_name, "r");
+ if (fp == NULL) {
+ xf86Msg(X_ERROR, "Could not open %s for reading. Exiting.\n", path_name);
+ goto end;
+ }
+ /* Read the file */
+#ifdef __GLIBC__
+ while ((read = getline(&line, &len, fp)) != -1) {
+#else
+ while ((line = fgetln(fp, &len)) != (char *)NULL) {
+#endif /* __GLIBC __ */
+ xchomp(line);
+ if (isdigit(line[0])) {
+ strncpy(vendor_str, line, 4);
+ vendor_str[4] = '\0';
+ vendor = (int)strtol(vendor_str, NULL, 16);
+ if ((strlen(&line[4])) == 0) {
+ chip_str[0] = '\0';
+ chip = -1;
+ } else {
+ /* Handle trailing whitespace */
+ if (isspace(line[4])) {
+ chip_str[0] = '\0';
+ chip = -1;
+ } else {
+ /* Ok, it's a real ID */
+ strncpy(chip_str, &line[4], 4);
+ chip_str[4] = '\0';
+ chip = (int)strtol(chip_str, NULL, 16);
+ }
+ }
+ if (vendor == match_vendor && chip == match_chip ) {
+ i = 0;
+ while (matches[i]) {
+ i++;
+ }
+ matches[i] = (char*)malloc(sizeof(char) * strlen(direntry->d_name) - 3);
+ if (!matches[i]) {
+ xf86Msg(X_ERROR, "Could not allocate space for the module name. Exiting.\n");
+ goto end;
+ }
+ /* hack off the .ids suffix. This should guard
+ * against other problems, but it will end up
+ * taking off anything after the first '.' */
+ for (j = 0; j < (strlen(direntry->d_name) - 3) ; j++) {
+ if (direntry->d_name[j] == '.') {
+ matches[i][j] = '\0';
+ break;
+ } else {
+ matches[i][j] = direntry->d_name[j];
+ }
+ }
+ xf86Msg(X_INFO, "Matched %s from file name %s\n", matches[i], direntry->d_name);
+ }
+ } else {
+ /* TODO Handle driver overrides here */
+ }
+ }
+ fclose(fp);
+ }
+ direntry = readdir(idsdir);
+ }
+ end:
+ free(line);
+ closedir(idsdir);
+}
+#endif /* __linux__ */
+
+/**
+ * @return The numbers of found devices that match with the current system
+ * drivers.
+ */
+int
+xf86PciMatchDriver(char* matches[], int nmatches) {
+ int i;
+ struct pci_device * info = NULL;
+ struct pci_device_iterator *iter;
+
+ /* Find the primary device, and get some information about it. */
+ iter = pci_slot_match_iterator_create(NULL);
+ while ((info = pci_device_next(iter)) != NULL) {
+ if (xf86IsPrimaryPci(info)) {
+ break;
+ }
+ }
+
+ pci_iterator_destroy(iter);
+#ifdef __linux__
+ if (info)
+ matchDriverFromFiles(matches, info->vendor_id, info->device_id);
+#endif
+
+ for (i = 0; (i < nmatches) && (matches[i]); i++) {
+ /* find end of matches list */
+ }
+
+ if ((info != NULL) && (i < nmatches)) {
+ i += videoPtrToDriverList(info, &(matches[i]), nmatches - i);
+ }
+
+ return i;
+}
+
+Bool
+xf86PciConfigure(void *busData, struct pci_device *pDev)
+{
+ struct pci_device * pVideo = NULL;
+
+ pVideo = (struct pci_device *) busData;
+ if (pDev &&
+ (pDev->domain == pVideo->domain) &&
+ (pDev->bus == pVideo->bus) &&
+ (pDev->dev == pVideo->dev) &&
+ (pDev->func == pVideo->func))
+ return 0;
+
+ return 1;
+}
+
+void
+xf86PciConfigureNewDev(void *busData, struct pci_device *pVideo,
+ GDevRec *GDev, int *chipset)
+{
+ char busnum[8];
+
+ pVideo = (struct pci_device *) busData;
+
+ xf86FormatPciBusNumber(pVideo->bus, busnum);
+ XNFasprintf(&GDev->busID, "PCI:%s:%d:%d",
+ busnum, pVideo->dev, pVideo->func);
+
+ GDev->chipID = pVideo->device_id;
+ GDev->chipRev = pVideo->revision;
+
+ if (*chipset < 0)
+ *chipset = (pVideo->vendor_id << 16) | pVideo->device_id;
+}
+
+struct pci_io_handle *
+xf86MapLegacyIO(struct pci_device *dev)
+{
+ return pci_legacy_open_io(dev, 0, 64 * 1024);
+}
+
+void
+xf86UnmapLegacyIO(struct pci_device *dev, struct pci_io_handle *handle)
+{
+ pci_device_close_io(dev, handle);
+}