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xserver/hw/xfree86/fbdevhw/fbdevhw.c

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/* $XFree86: xc/programs/Xserver/hw/xfree86/fbdevhw/fbdevhw.c,v 1.32 2003/08/26 10:57:03 daenzer Exp $ */
/* all driver need this */
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86_ansic.h"
/* pci stuff */
#include "xf86PciInfo.h"
#include "xf86Pci.h"
#include "xf86cmap.h"
#include "fbdevhw.h"
#include "fbpriv.h"
#if 0
/* kernel header doesn't work with -ansi */
# include "asm/page.h" /* #define for PAGE_* */
#else
# define PAGE_MASK (~(getpagesize() - 1))
#endif
#include "globals.h"
#define DPMS_SERVER
#include <X11/extensions/dpms.h>
#define DEBUG 0
#define PAGE_MASK (~(getpagesize() - 1))
#if DEBUG
# define TRACE_ENTER(str) ErrorF("fbdevHW: " str " %d\n",pScrn->scrnIndex)
#else
# define TRACE_ENTER(str)
#endif
/* -------------------------------------------------------------------- */
#ifdef XFree86LOADER
static MODULESETUPPROTO(fbdevhwSetup);
static XF86ModuleVersionInfo fbdevHWVersRec =
{
"fbdevhw",
MODULEVENDORSTRING,
MODINFOSTRING1,
MODINFOSTRING2,
XORG_VERSION_CURRENT,
0, 0, 2,
ABI_CLASS_VIDEODRV,
ABI_VIDEODRV_VERSION,
MOD_CLASS_NONE,
{0,0,0,0}
};
XF86ModuleData fbdevhwModuleData = { &fbdevHWVersRec, fbdevhwSetup, NULL };
static pointer
fbdevhwSetup(pointer module, pointer opts, int *errmaj, int *errmin)
{
const char *osname;
/* Check that we're being loaded on a Linux system */
LoaderGetOS(&osname, NULL, NULL, NULL);
if (!osname || strcmp(osname, "linux") != 0) {
if (errmaj)
*errmaj = LDR_BADOS;
if (errmin)
*errmin = 0;
return NULL;
} else {
/* OK */
return (pointer)1;
}
}
#else /* XFree86LOADER */
#include <fcntl.h>
#include <errno.h>
#include <sys/mman.h>
#endif /* XFree86LOADER */
/* -------------------------------------------------------------------- */
/* our private data, and two functions to allocate/free this */
#define FBDEVHWPTRLVAL(p) (p)->privates[fbdevHWPrivateIndex].ptr
#define FBDEVHWPTR(p) ((fbdevHWPtr)(FBDEVHWPTRLVAL(p)))
static int fbdevHWPrivateIndex = -1;
typedef struct {
/* framebuffer device: filename (/dev/fb*), handle, more */
char* device;
int fd;
void* fbmem;
unsigned int fbmem_len;
unsigned int fboff;
char* mmio;
unsigned int mmio_len;
/* current hardware state */
struct fb_fix_screeninfo fix;
struct fb_var_screeninfo var;
/* saved video mode */
struct fb_var_screeninfo saved_var;
/* FIXME: unused??? [geert] */
struct fb_cmap saved_cmap;
unsigned short *saved_red;
unsigned short *saved_green;
unsigned short *saved_blue;
/* buildin video mode */
DisplayModeRec buildin;
} fbdevHWRec, *fbdevHWPtr;
Bool
fbdevHWGetRec(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr;
if (fbdevHWPrivateIndex < 0)
fbdevHWPrivateIndex = xf86AllocateScrnInfoPrivateIndex();
if (FBDEVHWPTR(pScrn) != NULL)
return TRUE;
fPtr = FBDEVHWPTRLVAL(pScrn) = xnfcalloc(sizeof(fbdevHWRec), 1);
return TRUE;
}
void
fbdevHWFreeRec(ScrnInfoPtr pScrn)
{
if (fbdevHWPrivateIndex < 0)
return;
if (FBDEVHWPTR(pScrn) == NULL)
return;
xfree(FBDEVHWPTR(pScrn));
FBDEVHWPTRLVAL(pScrn) = NULL;
}
/* -------------------------------------------------------------------- */
/* some helpers for printing debug informations */
#if DEBUG
static void
print_fbdev_mode(char *txt, struct fb_var_screeninfo *var)
{
ErrorF( "fbdev %s mode:\t%d %d %d %d %d %d %d %d %d %d %d:%d:%d\n",
txt,var->pixclock,
var->xres, var->right_margin, var->hsync_len, var->left_margin,
var->yres, var->lower_margin, var->vsync_len, var->upper_margin,
var->bits_per_pixel,
var->red.length, var->green.length, var->blue.length);
}
static void
print_xfree_mode(char *txt, DisplayModePtr mode)
{
ErrorF( "xfree %s mode:\t%d %d %d %d %d %d %d %d %d\n",
txt,mode->Clock,
mode->HDisplay, mode->HSyncStart, mode->HSyncEnd, mode->HTotal,
mode->VDisplay, mode->VSyncStart, mode->VSyncEnd, mode->VTotal);
}
#endif
/* -------------------------------------------------------------------- */
/* Convert timings between the XFree and the Frame Buffer Device */
static void
xfree2fbdev_fblayout(ScrnInfoPtr pScrn, struct fb_var_screeninfo *var)
{
var->xres_virtual = pScrn->virtualX;
var->yres_virtual = pScrn->virtualY;
var->bits_per_pixel = pScrn->bitsPerPixel;
var->red.length = pScrn->weight.red;
var->green.length = pScrn->weight.green;
var->blue.length = pScrn->weight.blue;
}
static void
xfree2fbdev_timing(DisplayModePtr mode, struct fb_var_screeninfo *var)
{
var->xres = mode->HDisplay;
var->yres = mode->VDisplay;
if (var->xres_virtual < var->xres)
var->xres_virtual = var->xres;
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres;
var->xoffset = var->yoffset = 0;
var->pixclock = mode->Clock ? 1000000000/mode->Clock : 0;
var->right_margin = mode->HSyncStart-mode->HDisplay;
var->hsync_len = mode->HSyncEnd-mode->HSyncStart;
var->left_margin = mode->HTotal-mode->HSyncEnd;
var->lower_margin = mode->VSyncStart-mode->VDisplay;
var->vsync_len = mode->VSyncEnd-mode->VSyncStart;
var->upper_margin = mode->VTotal-mode->VSyncEnd;
var->sync = 0;
if (mode->Flags & V_PHSYNC)
var->sync |= FB_SYNC_HOR_HIGH_ACT;
if (mode->Flags & V_PVSYNC)
var->sync |= FB_SYNC_VERT_HIGH_ACT;
if (mode->Flags & V_PCSYNC)
var->sync |= FB_SYNC_COMP_HIGH_ACT;
#if 1 /* Badly needed for PAL/NTSC on Amiga (amifb)!! [geert] */
if (mode->Flags & V_BCAST)
var->sync |= FB_SYNC_BROADCAST;
#endif
if (mode->Flags & V_INTERLACE)
var->vmode = FB_VMODE_INTERLACED;
else if (mode->Flags & V_DBLSCAN)
var->vmode = FB_VMODE_DOUBLE;
else
var->vmode = FB_VMODE_NONINTERLACED;
}
static void
fbdev2xfree_timing(struct fb_var_screeninfo *var, DisplayModePtr mode)
{
mode->Clock = var->pixclock ? 1000000000/var->pixclock : 28000000;
mode->HDisplay = var->xres;
mode->HSyncStart = mode->HDisplay+var->right_margin;
mode->HSyncEnd = mode->HSyncStart+var->hsync_len;
mode->HTotal = mode->HSyncEnd+var->left_margin;
mode->VDisplay = var->yres;
mode->VSyncStart = mode->VDisplay+var->lower_margin;
mode->VSyncEnd = mode->VSyncStart+var->vsync_len;
mode->VTotal = mode->VSyncEnd+var->upper_margin;
mode->Flags = 0;
mode->Flags |= var->sync & FB_SYNC_HOR_HIGH_ACT ? V_PHSYNC : V_NHSYNC;
mode->Flags |= var->sync & FB_SYNC_VERT_HIGH_ACT ? V_PVSYNC : V_NVSYNC;
mode->Flags |= var->sync & FB_SYNC_COMP_HIGH_ACT ? V_PCSYNC : V_NCSYNC;
#if 1 /* Badly needed for PAL/NTSC on Amiga (amifb)!! [geert] */
if (var->sync & FB_SYNC_BROADCAST)
mode->Flags |= V_BCAST;
#endif
if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
mode->Flags |= V_INTERLACE;
else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
mode->Flags |= V_DBLSCAN;
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;
}
/* -------------------------------------------------------------------- */
/* open correct framebuffer device */
/* try to find the framebuffer device for a given PCI device */
static int
fbdev_open_pci(pciVideoPtr pPci, char **namep)
{
struct fb_fix_screeninfo fix;
char filename[16];
int fd,i,j;
memType res_start, res_end;
for (i = 0; i < 8; i++) {
sprintf(filename,"/dev/fb%d",i);
if (-1 == (fd = open(filename,O_RDWR,0))) {
xf86DrvMsg(-1, X_WARNING,
"open %s: %s\n", filename, strerror(errno));
continue;
}
if (-1 == ioctl(fd,FBIOGET_FSCREENINFO,(void*)&fix)) {
close(fd);
continue;
}
for (j = 0; j < 6; j++) {
res_start = pPci->memBase[j];
res_end = res_start+pPci->size[j];
if ((0 != fix.smem_len &&
(memType) fix.smem_start >= res_start &&
(memType) fix.smem_start < res_end) ||
(0 != fix.mmio_len &&
(memType) fix.mmio_start >= res_start &&
(memType) fix.mmio_start < res_end))
break;
}
if (j == 6) {
close(fd);
continue;
}
if (namep) {
*namep = xnfalloc(16);
strncpy(*namep,fix.id,16);
}
return fd;
}
if (namep)
*namep = NULL;
return -1;
}
static int
fbdev_open(int scrnIndex, char *dev, char** namep)
{
struct fb_fix_screeninfo fix;
int fd;
/* try argument (from XF86Config) first */
if (dev) {
fd = open(dev,O_RDWR,0);
} else {
/* second: environment variable */
dev = getenv("FRAMEBUFFER");
if ((NULL == dev) || ((fd = open(dev,O_RDWR,0)) == -1)) {
/* last try: default device */
dev = "/dev/fb0";
fd = open(dev,O_RDWR,0);
}
}
if (fd == -1) {
xf86DrvMsg(scrnIndex, X_ERROR,
"open %s: %s\n", dev, strerror(errno));
return -1;
}
if (namep) {
if (-1 == ioctl(fd,FBIOGET_FSCREENINFO,(void*)(&fix))) {
*namep = NULL;
xf86DrvMsg(scrnIndex, X_ERROR,
"FBIOGET_FSCREENINFO: %s\n", strerror(errno));
return -1;
} else {
*namep = xnfalloc(16);
strncpy(*namep,fix.id,16);
}
}
return fd;
}
/* -------------------------------------------------------------------- */
Bool
fbdevHWProbe(pciVideoPtr pPci, char *device,char **namep)
{
int fd;
if (pPci)
fd = fbdev_open_pci(pPci,namep);
else
fd = fbdev_open(-1,device,namep);
if (-1 == fd)
return FALSE;
close(fd);
return TRUE;
}
Bool
fbdevHWInit(ScrnInfoPtr pScrn, pciVideoPtr pPci, char *device)
{
fbdevHWPtr fPtr;
TRACE_ENTER("Init");
fbdevHWGetRec(pScrn);
fPtr = FBDEVHWPTR(pScrn);
/* open device */
if (pPci)
fPtr->fd = fbdev_open_pci(pPci,NULL);
else
fPtr->fd = fbdev_open(pScrn->scrnIndex,device,NULL);
if (-1 == fPtr->fd) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Failed to open framebuffer device, consult warnings"
" and/or errors above for possible reasons\n"
"\t(you may have to look at the server log to see"
" warnings)\n");
return FALSE;
}
/* get current fb device settings */
if (-1 == ioctl(fPtr->fd,FBIOGET_FSCREENINFO,(void*)(&fPtr->fix))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"ioctl FBIOGET_FSCREENINFO: %s\n",
strerror(errno));
return FALSE;
}
if (-1 == ioctl(fPtr->fd,FBIOGET_VSCREENINFO,(void*)(&fPtr->var))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"ioctl FBIOGET_VSCREENINFO: %s\n",
strerror(errno));
return FALSE;
}
/* we can use the current settings as "buildin mode" */
fbdev2xfree_timing(&fPtr->var, &fPtr->buildin);
fPtr->buildin.name = "current";
fPtr->buildin.next = &fPtr->buildin;
fPtr->buildin.prev = &fPtr->buildin;
fPtr->buildin.type |= M_T_BUILTIN;
return TRUE;
}
char*
fbdevHWGetName(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
return fPtr->fix.id;
}
int
fbdevHWGetDepth(ScrnInfoPtr pScrn, int *fbbpp)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
if (fbbpp)
*fbbpp = fPtr->var.bits_per_pixel;
if (fPtr->fix.visual == FB_VISUAL_TRUECOLOR ||
fPtr->fix.visual == FB_VISUAL_DIRECTCOLOR)
return fPtr->var.red.length+fPtr->var.green.length+
fPtr->var.blue.length;
else
return fPtr->var.bits_per_pixel;
}
int
fbdevHWGetLineLength(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
if (fPtr->fix.line_length)
return fPtr->fix.line_length;
else
return fPtr->var.xres_virtual*fPtr->var.bits_per_pixel/8;
}
int
fbdevHWGetType(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
return fPtr->fix.type;
}
int
fbdevHWGetVidmem(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
return fPtr->fix.smem_len;
}
void
fbdevHWSetVideoModes(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
int virtX = pScrn->display->virtualX;
int virtY = pScrn->display->virtualY;
struct fb_var_screeninfo var;
char **modename;
DisplayModePtr mode,this,last = pScrn->modes;
TRACE_ENTER("VerifyModes");
if (NULL == pScrn->display->modes)
return;
for (modename = pScrn->display->modes; *modename != NULL; modename++) {
for (mode = pScrn->monitor->Modes; mode != NULL; mode = mode->next)
if (0 == strcmp(mode->name,*modename))
break;
if (NULL == mode) {
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"\tmode \"%s\" not found\n", *modename);
continue;
}
memset(&var,0,sizeof(var));
xfree2fbdev_timing(mode,&var);
var.xres_virtual = virtX;
var.yres_virtual = virtY;
var.bits_per_pixel = pScrn->bitsPerPixel;
var.red.length = pScrn->weight.red;
var.green.length = pScrn->weight.green;
var.blue.length = pScrn->weight.blue;
var.activate = FB_ACTIVATE_TEST;
if (var.xres_virtual < var.xres) var.xres_virtual = var.xres;
if (var.yres_virtual < var.yres) var.yres_virtual = var.yres;
if (-1 == ioctl(fPtr->fd,FBIOPUT_VSCREENINFO,(void*)(&var))) {
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"\tmode \"%s\" test failed\n", *modename);
continue;
}
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"\tmode \"%s\" ok\n", *modename);
if (virtX < var.xres) virtX = var.xres;
if (virtY < var.yres) virtY = var.yres;
if (NULL == pScrn->modes) {
pScrn->modes = xnfalloc(sizeof(DisplayModeRec));
this = pScrn->modes;
memcpy(this,mode,sizeof(DisplayModeRec));
this->next = this;
this->prev = this;
} else {
this = xnfalloc(sizeof(DisplayModeRec));
memcpy(this,mode,sizeof(DisplayModeRec));
this->next = pScrn->modes;
this->prev = last;
last->next = this;
pScrn->modes->prev = this;
}
last = this;
}
pScrn->virtualX = virtX;
pScrn->virtualY = virtY;
}
DisplayModePtr
fbdevHWGetBuildinMode(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
return &fPtr->buildin;
}
void
fbdevHWUseBuildinMode(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("UseBuildinMode");
pScrn->modes = &fPtr->buildin;
pScrn->virtualX = pScrn->display->virtualX;
pScrn->virtualY = pScrn->display->virtualY;
if (pScrn->virtualX < fPtr->buildin.HDisplay)
pScrn->virtualX = fPtr->buildin.HDisplay;
if (pScrn->virtualY < fPtr->buildin.VDisplay)
pScrn->virtualY = fPtr->buildin.VDisplay;
}
/* -------------------------------------------------------------------- */
static void
calculateFbmem_len(fbdevHWPtr fPtr)
{
fPtr->fboff = (unsigned long) fPtr->fix.smem_start & ~PAGE_MASK;
fPtr->fbmem_len = (fPtr->fboff+fPtr->fix.smem_len+~PAGE_MASK) &
PAGE_MASK;
}
void*
fbdevHWMapVidmem(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("MapVidmem");
if (NULL == fPtr->fbmem) {
calculateFbmem_len(fPtr);
fPtr->fbmem = mmap(NULL, fPtr->fbmem_len, PROT_READ | PROT_WRITE,
MAP_SHARED, fPtr->fd, 0);
if (-1 == (long)fPtr->fbmem) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"mmap fbmem: %s\n", strerror(errno));
fPtr->fbmem = NULL;
} else {
/* Perhaps we'd better add fboff to fbmem and return 0 in
fbdevHWLinearOffset()? Of course we then need to mask
fPtr->fbmem with PAGE_MASK in fbdevHWUnmapVidmem() as
well. [geert] */
}
}
pScrn->memPhysBase = (unsigned long)fPtr->fix.smem_start & (unsigned long)(PAGE_MASK);
pScrn->fbOffset = (unsigned long)fPtr->fix.smem_start & (unsigned long)(~PAGE_MASK);
return fPtr->fbmem;
}
int
fbdevHWLinearOffset(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("LinearOffset");
return fPtr->fboff;
}
Bool
fbdevHWUnmapVidmem(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("UnmapVidmem");
if (NULL != fPtr->fbmem) {
if (-1 == munmap(fPtr->fbmem, fPtr->fbmem_len))
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"munmap fbmem: %s\n", strerror(errno));
fPtr->fbmem = NULL;
}
return TRUE;
}
void*
fbdevHWMapMMIO(ScrnInfoPtr pScrn)
{
unsigned int mmio_off;
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("MapMMIO");
if (NULL == fPtr->mmio) {
/* tell the kernel not to use accels to speed up console scrolling */
fPtr->var.accel_flags = 0;
if (0 != ioctl(fPtr->fd,FBIOPUT_VSCREENINFO,(void*)(&fPtr->var))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOPUT_VSCREENINFO: %s\n", strerror(errno));
return FALSE;
}
mmio_off = (unsigned long) fPtr->fix.mmio_start & ~PAGE_MASK;
fPtr->mmio_len = (mmio_off+fPtr->fix.mmio_len+~PAGE_MASK) &
PAGE_MASK;
if (NULL == fPtr->fbmem)
calculateFbmem_len(fPtr);
fPtr->mmio = mmap(NULL, fPtr->mmio_len, PROT_READ | PROT_WRITE,
MAP_SHARED, fPtr->fd, fPtr->fbmem_len);
if (-1 == (long)fPtr->mmio) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"mmap mmio: %s\n", strerror(errno));
fPtr->mmio = NULL;
} else
fPtr->mmio += mmio_off;
}
return fPtr->mmio;
}
Bool
fbdevHWUnmapMMIO(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("UnmapMMIO");
if (NULL != fPtr->mmio) {
if (-1 == munmap((void *)((unsigned long)fPtr->mmio & PAGE_MASK), fPtr->mmio_len))
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"munmap mmio: %s\n", strerror(errno));
fPtr->mmio = NULL;
/* FIXME: restore var.accel_flags [geert] */
}
return TRUE;
}
/* -------------------------------------------------------------------- */
Bool
fbdevHWModeInit(ScrnInfoPtr pScrn, DisplayModePtr mode)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("ModeInit");
xfree2fbdev_fblayout(pScrn, &fPtr->var);
xfree2fbdev_timing(mode, &fPtr->var);
#if DEBUG
print_xfree_mode("init",mode);
print_fbdev_mode("init",&fPtr->var);
#endif
pScrn->vtSema = TRUE;
/* set */
if (0 != ioctl(fPtr->fd,FBIOPUT_VSCREENINFO,(void*)(&fPtr->var))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOPUT_VSCREENINFO: %s\n", strerror(errno));
return FALSE;
}
/* read back */
if (0 != ioctl(fPtr->fd,FBIOGET_FSCREENINFO,(void*)(&fPtr->fix))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOGET_FSCREENINFO: %s\n", strerror(errno));
return FALSE;
}
if (0 != ioctl(fPtr->fd,FBIOGET_VSCREENINFO,(void*)(&fPtr->var))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOGET_VSCREENINFO: %s\n", strerror(errno));
return FALSE;
}
return TRUE;
}
/* -------------------------------------------------------------------- */
/* video mode save/restore */
/* TODO: colormap */
void
fbdevHWSave(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("Save");
if (0 != ioctl(fPtr->fd,FBIOGET_VSCREENINFO,(void*)(&fPtr->saved_var)))
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOGET_VSCREENINFO: %s\n", strerror(errno));
}
void
fbdevHWRestore(ScrnInfoPtr pScrn)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("Restore");
if (0 != ioctl(fPtr->fd,FBIOPUT_VSCREENINFO,(void*)(&fPtr->saved_var)))
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOPUT_VSCREENINFO: %s\n", strerror(errno));
}
/* -------------------------------------------------------------------- */
/* callback for xf86HandleColormaps */
void
fbdevHWLoadPalette(ScrnInfoPtr pScrn, int numColors, int *indices,
LOCO *colors, VisualPtr pVisual)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
struct fb_cmap cmap;
unsigned short red,green,blue;
int i;
TRACE_ENTER("LoadPalette");
cmap.len = 1;
cmap.red = &red;
cmap.green = &green;
cmap.blue = &blue;
cmap.transp = NULL;
for (i = 0; i < numColors; i++) {
cmap.start = indices[i];
red = (colors[indices[i]].red << 8) |
colors[indices[i]].red;
green = (colors[indices[i]].green << 8) |
colors[indices[i]].green;
blue = (colors[indices[i]].blue << 8) |
colors[indices[i]].blue;
if (-1 == ioctl(fPtr->fd,FBIOPUTCMAP,(void*)&cmap))
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOPUTCMAP: %s\n", strerror(errno));
}
}
/* -------------------------------------------------------------------- */
/* these can be hooked directly into ScrnInfoRec */
ModeStatus
fbdevHWValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
struct fb_var_screeninfo var;
TRACE_ENTER("ValidMode");
memcpy(&var,&fPtr->var,sizeof(var));
xfree2fbdev_timing(mode, &var);
var.activate = FB_ACTIVATE_TEST;
if (0 != ioctl(fPtr->fd,FBIOPUT_VSCREENINFO,(void*)(&fPtr->var))) {
xf86DrvMsg(scrnIndex, X_ERROR,
"FBIOPUT_VSCREENINFO: %s\n", strerror(errno));
return MODE_BAD;
}
return MODE_OK;
}
Bool
fbdevHWSwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("SwitchMode");
xfree2fbdev_timing(mode, &fPtr->var);
if (0 != ioctl(fPtr->fd,FBIOPUT_VSCREENINFO,(void*)(&fPtr->var))) {
xf86DrvMsg(scrnIndex, X_ERROR,
"FBIOPUT_VSCREENINFO: %s\n", strerror(errno));
return FALSE;
}
return TRUE;
}
void
fbdevHWAdjustFrame(int scrnIndex, int x, int y, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
TRACE_ENTER("AdjustFrame");
if ( x < 0 || x + fPtr->var.xres > fPtr->var.xres_virtual ||
y < 0 || y + fPtr->var.yres > fPtr->var.yres_virtual )
return;
fPtr->var.xoffset = x;
fPtr->var.yoffset = y;
if (-1 == ioctl(fPtr->fd,FBIOPAN_DISPLAY,(void*)&fPtr->var))
xf86DrvMsgVerb(scrnIndex,5, X_WARNING,
"FBIOPAN_DISPLAY: %s\n", strerror(errno));
}
Bool
fbdevHWEnterVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
TRACE_ENTER("EnterVT");
if (!fbdevHWModeInit(pScrn, pScrn->currentMode))
return FALSE;
fbdevHWAdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
return TRUE;
}
void
fbdevHWLeaveVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
TRACE_ENTER("LeaveVT");
fbdevHWRestore(pScrn);
}
void
fbdevHWDPMSSet(ScrnInfoPtr pScrn, int mode, int flags)
{
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
unsigned long fbmode;
TRACE_ENTER("DPMSSet");
if (!pScrn->vtSema)
return;
switch (mode) {
case DPMSModeOn:
fbmode = 0;
break;
case DPMSModeStandby:
fbmode = 2;
break;
case DPMSModeSuspend:
fbmode = 3;
break;
case DPMSModeOff:
fbmode = 4;
break;
default:
return;
}
if (-1 == ioctl(fPtr->fd, FBIOBLANK, (void *)fbmode))
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOBLANK: %s\n", strerror(errno));
}
Bool
fbdevHWSaveScreen(ScreenPtr pScreen, int mode)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
fbdevHWPtr fPtr = FBDEVHWPTR(pScrn);
unsigned long unblank;
TRACE_ENTER("HWSaveScreen");
if (!pScrn->vtSema)
return TRUE;
unblank = xf86IsUnblank(mode);
if (-1 == ioctl(fPtr->fd, FBIOBLANK, (void *)(1-unblank))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"FBIOBLANK: %s\n", strerror(errno));
return FALSE;
}
return TRUE;
}
xf86SwitchModeProc *
fbdevHWSwitchModeWeak(void) { return fbdevHWSwitchMode; }
xf86AdjustFrameProc *
fbdevHWAdjustFrameWeak(void) { return fbdevHWAdjustFrame; }
xf86EnterVTProc *
fbdevHWEnterVTWeak(void) { return fbdevHWEnterVT; }
xf86LeaveVTProc *
fbdevHWLeaveVTWeak(void) { return fbdevHWLeaveVT; }
xf86ValidModeProc *
fbdevHWValidModeWeak(void) { return fbdevHWValidMode; }
xf86DPMSSetProc *
fbdevHWDPMSSetWeak(void) { return fbdevHWDPMSSet; }
xf86LoadPaletteProc *
fbdevHWLoadPaletteWeak(void) { return fbdevHWLoadPalette; }
SaveScreenProcPtr
fbdevHWSaveScreenWeak(void) { return fbdevHWSaveScreen; }
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