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xenocara/xserver/hw/xfree86/common/xf86sbusBus.c
matthieu 889b860699 Importing xserver from X.Org 7.2RC2
2006-11-26 18:13:41 +00:00

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/*
* SBUS bus-specific code.
*
* Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)
*
* 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
* JAKUB JELINEK 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.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <ctype.h>
#include <stdio.h>
#include <unistd.h>
#include <X11/X.h>
#include "os.h"
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86_OSlib.h"
#include "xf86Resources.h"
#include "xf86cmap.h"
#include "xf86Bus.h"
#include "xf86sbusBus.h"
#include "xf86Sbus.h"
Bool sbusSlotClaimed = FALSE;
static int xf86nSbusInfo;
static void
CheckSbusDevice(const char *device, int fbNum)
{
int fd, i;
struct fbgattr fbattr;
sbusDevicePtr psdp;
fd = open(device, O_RDONLY, 0);
if (fd < 0)
return;
memset(&fbattr, 0, sizeof(fbattr));
if (ioctl(fd, FBIOGATTR, &fbattr) < 0) {
if (ioctl(fd, FBIOGTYPE, &fbattr.fbtype) < 0) {
close(fd);
return;
}
}
close(fd);
for (i = 0; sbusDeviceTable[i].devId; i++)
if (sbusDeviceTable[i].fbType == fbattr.fbtype.fb_type)
break;
if (! sbusDeviceTable[i].devId)
return;
xf86SbusInfo = xnfrealloc(xf86SbusInfo, sizeof(psdp) * (++xf86nSbusInfo + 1));
xf86SbusInfo[xf86nSbusInfo] = NULL;
xf86SbusInfo[xf86nSbusInfo - 1] = psdp = xnfcalloc(sizeof (sbusDevice), 1);
psdp->devId = sbusDeviceTable[i].devId;
psdp->fbNum = fbNum;
psdp->device = xnfstrdup(device);
psdp->width = fbattr.fbtype.fb_width;
psdp->height = fbattr.fbtype.fb_height;
psdp->fd = -1;
}
void
xf86SbusProbe(void)
{
int i, useProm = 0;
char fbDevName[32];
sbusDevicePtr psdp, *psdpp;
xf86SbusInfo = xalloc(sizeof(psdp));
*xf86SbusInfo = NULL;
for (i = 0; i < 32; i++) {
sprintf(fbDevName, "/dev/fb%d", i);
CheckSbusDevice(fbDevName, i);
}
if (sparcPromInit() >= 0) {
useProm = 1;
sparcPromAssignNodes();
}
for (psdpp = xf86SbusInfo; (psdp = *psdpp); psdpp++) {
for (i = 0; sbusDeviceTable[i].devId; i++)
if (sbusDeviceTable[i].devId == psdp->devId)
psdp->descr = sbusDeviceTable[i].descr;
/*
* If we can use PROM information and found the PROM node for this
* device, we can tell more about the card.
*/
if (useProm && psdp->node.node) {
char *prop, *promPath;
int len, chiprev, vmsize;
switch (psdp->devId) {
case SBUS_DEVICE_MGX:
prop = sparcPromGetProperty(&psdp->node, "fb_size", &len);
if (prop && len == 4 && *(int *)prop == 0x400000)
psdp->descr = "Quantum 3D MGXplus with 4M VRAM";
break;
case SBUS_DEVICE_CG6:
chiprev = 0;
vmsize = 0;
prop = sparcPromGetProperty(&psdp->node, "chiprev", &len);
if (prop && len == 4)
chiprev = *(int *)prop;
prop = sparcPromGetProperty(&psdp->node, "vmsize", &len);
if (prop && len == 4)
vmsize = *(int *)prop;
switch (chiprev) {
case 1:
case 2:
case 3:
case 4:
psdp->descr = "Sun Double width GX"; break;
case 5:
case 6:
case 7:
case 8:
case 9:
psdp->descr = "Sun Single width GX"; break;
case 11:
switch (vmsize) {
case 2:
psdp->descr = "Sun Turbo GX with 1M VSIMM"; break;
case 4:
psdp->descr = "Sun Turbo GX Plus"; break;
default:
psdp->descr = "Sun Turbo GX"; break;
}
}
break;
case SBUS_DEVICE_CG14:
prop = sparcPromGetProperty(&psdp->node, "reg", &len);
vmsize = 0;
if (prop && !(len % 12) && len > 0)
vmsize = *(int *)(prop + len - 4);
switch (vmsize) {
case 0x400000:
psdp->descr = "Sun SX with 4M VSIMM"; break;
case 0x800000:
psdp->descr = "Sun SX with 8M VSIMM"; break;
}
break;
case SBUS_DEVICE_LEO:
prop = sparcPromGetProperty(&psdp->node, "model", &len);
if (prop && len > 0 && !strstr(prop, "501-2503"))
psdp->descr = "Sun Turbo ZX";
break;
case SBUS_DEVICE_TCX:
if (sparcPromGetBool(&psdp->node, "tcx-8-bit"))
psdp->descr = "Sun TCX (8bit)";
else
psdp->descr = "Sun TCX (S24)";
break;
case SBUS_DEVICE_FFB:
prop = sparcPromGetProperty(&psdp->node, "name", &len);
chiprev = 0;
prop = sparcPromGetProperty(&psdp->node, "board_type", &len);
if (prop && len == 4)
chiprev = *(int *)prop;
if (strstr (prop, "afb")) {
if (chiprev == 3)
psdp->descr = "Sun|Elite3D-M6 Horizontal";
} else {
switch (chiprev) {
case 0x08:
psdp->descr = "Sun FFB 67MHz Creator"; break;
case 0x0b:
psdp->descr = "Sun FFB 67MHz Creator 3D"; break;
case 0x1b:
psdp->descr = "Sun FFB 75MHz Creator 3D"; break;
case 0x20:
case 0x28:
psdp->descr = "Sun FFB2 Vertical Creator"; break;
case 0x23:
case 0x2b:
psdp->descr = "Sun FFB2 Vertical Creator 3D"; break;
case 0x30:
psdp->descr = "Sun FFB2+ Vertical Creator"; break;
case 0x33:
psdp->descr = "Sun FFB2+ Vertical Creator 3D"; break;
case 0x40:
case 0x48:
psdp->descr = "Sun FFB2 Horizontal Creator"; break;
case 0x43:
case 0x4b:
psdp->descr = "Sun FFB2 Horizontal Creator 3D"; break;
}
}
break;
}
xf86Msg(X_PROBED, "SBUS:(0x%08x) %s", psdp->node.node, psdp->descr);
promPath = sparcPromNode2Pathname (&psdp->node);
if (promPath) {
xf86ErrorF(" at %s", promPath);
xfree(promPath);
}
} else
xf86Msg(X_PROBED, "SBUS: %s", psdp->descr);
xf86ErrorF("\n");
}
if (useProm)
sparcPromClose();
}
/*
* Parse a BUS ID string, and return the SBUS bus parameters if it was
* in the correct format for a SBUS bus id.
*/
Bool
xf86ParseSbusBusString(const char *busID, int *fbNum)
{
/*
* The format is assumed to be one of:
* "fbN", e.g. "fb1", which means the device corresponding to /dev/fbN
* "nameN", e.g. "cgsix0", which means Nth instance of card NAME
* "/prompath", e.g. "/sbus@0,10001000/cgsix@3,0" which is PROM pathname
* to the device.
*/
const char *id;
int i, len;
if (StringToBusType(busID, &id) != BUS_SBUS)
return FALSE;
if (*id != '/') {
if (!strncmp (id, "fb", 2)) {
if (!isdigit(id[2]))
return FALSE;
*fbNum = atoi(id + 2);
return TRUE;
} else {
sbusDevicePtr *psdpp;
int devId;
for (i = 0, len = 0; sbusDeviceTable[i].devId; i++) {
len = strlen(sbusDeviceTable[i].promName);
if (!strncmp (sbusDeviceTable[i].promName, id, len)
&& isdigit(id[len]))
break;
}
devId = sbusDeviceTable[i].devId;
if (!devId) return FALSE;
i = atoi(id + len);
for (psdpp = xf86SbusInfo; *psdpp; ++psdpp) {
if ((*psdpp)->devId != devId)
continue;
if (!i) {
*fbNum = (*psdpp)->fbNum;
return TRUE;
}
i--;
}
}
return FALSE;
}
if (sparcPromInit() >= 0) {
i = sparcPromPathname2Node(id);
sparcPromClose();
if (i) {
sbusDevicePtr *psdpp;
for (psdpp = xf86SbusInfo; *psdpp; ++psdpp) {
if ((*psdpp)->node.node == i) {
*fbNum = (*psdpp)->fbNum;
return TRUE;
}
}
}
}
return FALSE;
}
/*
* Compare a BUS ID string with a SBUS bus id. Return TRUE if they match.
*/
Bool
xf86CompareSbusBusString(const char *busID, int fbNum)
{
int iFbNum;
if (xf86ParseSbusBusString(busID, &iFbNum)) {
return fbNum == iFbNum;
} else {
return FALSE;
}
}
/*
* Check if the slot requested is free. If it is already in use, return FALSE.
*/
Bool
xf86CheckSbusSlot(int fbNum)
{
int i;
EntityPtr p;
for (i = 0; i < xf86NumEntities; i++) {
p = xf86Entities[i];
/* Check if this SBUS slot is taken */
if (p->busType == BUS_SBUS && p->sbusBusId.fbNum == fbNum)
return FALSE;
}
return TRUE;
}
/*
* If the slot requested is already in use, return -1.
* Otherwise, claim the slot for the screen requesting it.
*/
int
xf86ClaimSbusSlot(sbusDevicePtr psdp, DriverPtr drvp,
GDevPtr dev, Bool active)
{
EntityPtr p = NULL;
int num;
if (xf86CheckSbusSlot(psdp->fbNum)) {
num = xf86AllocateEntity();
p = xf86Entities[num];
p->driver = drvp;
p->chipset = -1;
p->busType = BUS_SBUS;
xf86AddDevToEntity(num, dev);
p->sbusBusId.fbNum = psdp->fbNum;
p->active = active;
p->inUse = FALSE;
/* Here we initialize the access structure */
p->access = xnfcalloc(1,sizeof(EntityAccessRec));
p->access->fallback = &AccessNULL;
p->access->pAccess = &AccessNULL;
sbusSlotClaimed = TRUE;
return num;
} else
return -1;
}
_X_EXPORT int
xf86MatchSbusInstances(const char *driverName, int sbusDevId,
GDevPtr *devList, int numDevs, DriverPtr drvp,
int **foundEntities)
{
int i,j;
sbusDevicePtr psdp, *psdpp;
int numClaimedInstances = 0;
int allocatedInstances = 0;
int numFound = 0;
GDevPtr devBus = NULL;
GDevPtr dev = NULL;
int *retEntities = NULL;
int useProm = 0;
struct Inst {
sbusDevicePtr sbus;
GDevPtr dev;
Bool claimed; /* BusID matches with a device section */
} *instances = NULL;
*foundEntities = NULL;
for (psdpp = xf86SbusInfo, psdp = *psdpp; psdp; psdp = *++psdpp) {
if (psdp->devId != sbusDevId)
continue;
if (psdp->fd == -2)
continue;
++allocatedInstances;
instances = xnfrealloc(instances,
allocatedInstances * sizeof(struct Inst));
instances[allocatedInstances - 1].sbus = psdp;
instances[allocatedInstances - 1].dev = NULL;
instances[allocatedInstances - 1].claimed = FALSE;
numFound++;
}
/*
* This may be debatable, but if no SBUS 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) {
xfree(instances);
return 0;
}
if (xf86DoProbe) {
xfree(instances);
return numFound;
}
if (sparcPromInit() >= 0)
useProm = 1;
if (xf86DoConfigure && xf86DoConfigurePass1) {
GDevPtr pGDev;
int actualcards = 0;
for (i = 0; i < allocatedInstances; i++) {
actualcards++;
pGDev = xf86AddBusDeviceToConfigure(drvp->driverName, BUS_SBUS,
instances[i].sbus, -1);
if (pGDev) {
/*
* XF86Match???Instances() treat chipID and chipRev as
* overrides, so clobber them here.
*/
pGDev->chipID = pGDev->chipRev = -1;
}
}
xfree(instances);
if (useProm)
sparcPromClose();
return actualcards;
}
#ifdef DEBUG
ErrorF("%s instances found: %d\n", driverName, allocatedInstances);
#endif
for (i = 0; i < allocatedInstances; i++) {
char *promPath = NULL;
psdp = instances[i].sbus;
devBus = NULL;
dev = NULL;
if (useProm && psdp->node.node)
promPath = sparcPromNode2Pathname(&psdp->node);
for (j = 0; j < numDevs; j++) {
if (devList[j]->busID && *devList[j]->busID) {
if (xf86CompareSbusBusString(devList[j]->busID, psdp->fbNum)) {
if (devBus)
xf86MsgVerb(X_WARNING,0,
"%s: More than one matching Device section for "
"instance (BusID: %s) found: %s\n",
driverName,devList[j]->identifier,
devList[j]->busID);
else
devBus = devList[j];
}
} else {
if (!dev && !devBus) {
if (promPath)
xf86Msg(X_PROBED, "Assigning device section with no busID to SBUS:%s\n",
promPath);
else
xf86Msg(X_PROBED, "Assigning device section with no busID to SBUS:fb%d\n",
psdp->fbNum);
dev = devList[j];
} else
xf86MsgVerb(X_WARNING, 0,
"%s: More than one matching Device section "
"found: %s\n", driverName, devList[j]->identifier);
}
}
if (devBus) dev = devBus; /* busID preferred */
if (!dev && psdp->fd != -2) {
if (promPath) {
xf86MsgVerb(X_WARNING, 0, "%s: No matching Device section "
"for instance (BusID SBUS:%s) found\n",
driverName, promPath);
} else
xf86MsgVerb(X_WARNING, 0, "%s: No matching Device section "
"for instance (BusID SBUS:fb%d) found\n",
driverName, psdp->fbNum);
} else if (dev) {
numClaimedInstances++;
instances[i].claimed = TRUE;
instances[i].dev = dev;
}
if (promPath)
xfree(promPath);
}
#ifdef DEBUG
ErrorF("%s instances found: %d\n", driverName, numClaimedInstances);
#endif
/*
* 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;
psdp = instances[i].sbus;
if (!xf86CheckSbusSlot(psdp->fbNum))
continue;
#ifdef DEBUG
ErrorF("%s: card at fb%d %08x is claimed by a Device section\n",
driverName, psdp->fbNum, psdp->node.node);
#endif
/* Allocate an entry in the lists to be returned */
numFound++;
retEntities = xnfrealloc(retEntities, numFound * sizeof(int));
retEntities[numFound - 1]
= xf86ClaimSbusSlot(psdp, drvp, instances[i].dev,instances[i].dev->active ?
TRUE : FALSE);
}
xfree(instances);
if (numFound > 0) {
*foundEntities = retEntities;
}
if (useProm)
sparcPromClose();
return numFound;
}
/*
* xf86GetSbusInfoForEntity() -- Get the sbusDevicePtr of entity.
*/
_X_EXPORT sbusDevicePtr
xf86GetSbusInfoForEntity(int entityIndex)
{
sbusDevicePtr *psdpp;
EntityPtr p = xf86Entities[entityIndex];
if (entityIndex >= xf86NumEntities
|| p->busType != BUS_SBUS) return NULL;
for (psdpp = xf86SbusInfo; *psdpp != NULL; psdpp++) {
if (p->sbusBusId.fbNum == (*psdpp)->fbNum)
return (*psdpp);
}
return NULL;
}
_X_EXPORT int
xf86GetEntityForSbusInfo(sbusDevicePtr psdp)
{
int i;
for (i = 0; i < xf86NumEntities; i++) {
EntityPtr p = xf86Entities[i];
if (p->busType != BUS_SBUS) continue;
if (p->sbusBusId.fbNum == psdp->fbNum)
return i;
}
return -1;
}
_X_EXPORT void
xf86SbusUseBuiltinMode(ScrnInfoPtr pScrn, sbusDevicePtr psdp)
{
DisplayModePtr mode;
mode = xnfcalloc(sizeof(DisplayModeRec), 1);
mode->name = "current";
mode->next = mode;
mode->prev = mode;
mode->type = M_T_BUILTIN;
mode->Clock = 100000000;
mode->HDisplay = psdp->width;
mode->HSyncStart = psdp->width;
mode->HSyncEnd = psdp->width;
mode->HTotal = psdp->width;
mode->VDisplay = psdp->height;
mode->VSyncStart = psdp->height;
mode->VSyncEnd = psdp->height;
mode->VTotal = psdp->height;
mode->SynthClock = mode->Clock;
mode->CrtcHDisplay = mode->HDisplay;
mode->CrtcHSyncStart = mode->HSyncStart;
mode->CrtcHSyncEnd = mode->HSyncEnd;
mode->CrtcHTotal = mode->HTotal;
mode->CrtcVDisplay = mode->VDisplay;
mode->CrtcVSyncStart = mode->VSyncStart;
mode->CrtcVSyncEnd = mode->VSyncEnd;
mode->CrtcVTotal = mode->VTotal;
mode->CrtcHAdjusted = FALSE;
mode->CrtcVAdjusted = FALSE;
pScrn->modes = mode;
pScrn->virtualX = psdp->width;
pScrn->virtualY = psdp->height;
}
static int sbusPaletteIndex = -1;
static unsigned long sbusPaletteGeneration = 0;
typedef struct _sbusCmap {
sbusDevicePtr psdp;
CloseScreenProcPtr CloseScreen;
Bool origCmapValid;
unsigned char origRed[16];
unsigned char origGreen[16];
unsigned char origBlue[16];
} sbusCmapRec, *sbusCmapPtr;
#define SBUSCMAPPTR(pScreen) ((sbusCmapPtr)((pScreen)->devPrivates[sbusPaletteIndex].ptr))
static void
xf86SbusCmapLoadPalette(ScrnInfoPtr pScrn, int numColors, int *indices,
LOCO *colors, VisualPtr pVisual)
{
int i, index;
sbusCmapPtr cmap;
struct fbcmap fbcmap;
unsigned char *data = ALLOCATE_LOCAL(numColors*3);
cmap = SBUSCMAPPTR(pScrn->pScreen);
if (!cmap) return;
fbcmap.count = 0;
fbcmap.index = indices[0];
fbcmap.red = data;
fbcmap.green = data + numColors;
fbcmap.blue = fbcmap.green + numColors;
for (i = 0; i < numColors; i++) {
index = indices[i];
if (fbcmap.count && index != fbcmap.index + fbcmap.count) {
ioctl (cmap->psdp->fd, FBIOPUTCMAP, &fbcmap);
fbcmap.count = 0;
fbcmap.index = index;
}
fbcmap.red[fbcmap.count] = colors[index].red;
fbcmap.green[fbcmap.count] = colors[index].green;
fbcmap.blue[fbcmap.count++] = colors[index].blue;
}
ioctl (cmap->psdp->fd, FBIOPUTCMAP, &fbcmap);
DEALLOCATE_LOCAL(data);
}
static Bool
xf86SbusCmapCloseScreen(int i, ScreenPtr pScreen)
{
sbusCmapPtr cmap;
struct fbcmap fbcmap;
cmap = SBUSCMAPPTR(pScreen);
if (cmap->origCmapValid) {
fbcmap.index = 0;
fbcmap.count = 16;
fbcmap.red = cmap->origRed;
fbcmap.green = cmap->origGreen;
fbcmap.blue = cmap->origBlue;
ioctl (cmap->psdp->fd, FBIOPUTCMAP, &fbcmap);
}
pScreen->CloseScreen = cmap->CloseScreen;
xfree (cmap);
return (*pScreen->CloseScreen) (i, pScreen);
}
_X_EXPORT Bool
xf86SbusHandleColormaps(ScreenPtr pScreen, sbusDevicePtr psdp)
{
sbusCmapPtr cmap;
struct fbcmap fbcmap;
unsigned char data[2];
if(sbusPaletteGeneration != serverGeneration) {
if((sbusPaletteIndex = AllocateScreenPrivateIndex()) < 0)
return FALSE;
sbusPaletteGeneration = serverGeneration;
}
cmap = xnfcalloc(1, sizeof(sbusCmapRec));
pScreen->devPrivates[sbusPaletteIndex].ptr = cmap;
cmap->psdp = psdp;
fbcmap.index = 0;
fbcmap.count = 16;
fbcmap.red = cmap->origRed;
fbcmap.green = cmap->origGreen;
fbcmap.blue = cmap->origBlue;
if (ioctl (psdp->fd, FBIOGETCMAP, &fbcmap) >= 0)
cmap->origCmapValid = TRUE;
fbcmap.index = 0;
fbcmap.count = 2;
fbcmap.red = data;
fbcmap.green = data;
fbcmap.blue = data;
if (pScreen->whitePixel == 0) {
data[0] = 255;
data[1] = 0;
} else {
data[0] = 0;
data[1] = 255;
}
ioctl (psdp->fd, FBIOPUTCMAP, &fbcmap);
cmap->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = xf86SbusCmapCloseScreen;
return xf86HandleColormaps(pScreen, 256, 8,
xf86SbusCmapLoadPalette, NULL, 0);
}
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